From 48adcf148c83faa41999fb0b3524299c4e160fd9 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 20 May 2008 01:03:16 +0300 Subject: [CPUFREQ] cpufreq: remove CVS keywords This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk Signed-off-by: Dave Jones --- include/linux/cpufreq.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index e7e91dbfde0f..2270ca5ec631 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -4,9 +4,6 @@ * Copyright (C) 2001 Russell King * (C) 2002 - 2003 Dominik Brodowski * - * - * $Id: cpufreq.h,v 1.36 2003/01/20 17:31:48 db Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. -- cgit v1.2.3 From 41df0d61c266998b8049df7fec119cd518a43aa1 Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Mon, 12 May 2008 21:21:13 +0200 Subject: x86: Add performance variants of cpumask operators * Increase performance for systems with large count NR_CPUS by limiting the range of the cpumask operators that loop over the bits in a cpumask_t variable. This removes a large amount of wasted cpu cycles. * Add performance variants of the cpumask operators: int cpus_weight_nr(mask) Same using nr_cpu_ids instead of NR_CPUS int first_cpu_nr(mask) Number lowest set bit, or nr_cpu_ids int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids for_each_cpu_mask_nr(cpu, mask) for-loop cpu over mask using nr_cpu_ids * Modify following to use performance variants: #define num_online_cpus() cpus_weight_nr(cpu_online_map) #define num_possible_cpus() cpus_weight_nr(cpu_possible_map) #define num_present_cpus() cpus_weight_nr(cpu_present_map) #define for_each_possible_cpu(cpu) for_each_cpu_mask_nr((cpu), ...) #define for_each_online_cpu(cpu) for_each_cpu_mask_nr((cpu), ...) #define for_each_present_cpu(cpu) for_each_cpu_mask_nr((cpu), ...) * Comment added to include/linux/cpumask.h: Note: The alternate operations with the suffix "_nr" are used to limit the range of the loop to nr_cpu_ids instead of NR_CPUS when NR_CPUS > 64 for performance reasons. If NR_CPUS is <= 64 then most assembler bitmask operators execute faster with a constant range, so the operator will continue to use NR_CPUS. Another consideration is that nr_cpu_ids is initialized to NR_CPUS and isn't lowered until the possible cpus are discovered (including any disabled cpus). So early uses will span the entire range of NR_CPUS. (The net effect is that for systems with 64 or less CPU's there are no functional changes.) For inclusion into sched-devel/latest tree. Based on: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git + sched-devel/latest .../mingo/linux-2.6-sched-devel.git Cc: Paul Jackson Cc: Christoph Lameter Reviewed-by: Paul Jackson Reviewed-by: Christoph Lameter Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar --- include/linux/cpumask.h | 92 +++++++++++++++++++++++++++++++++---------------- lib/cpumask.c | 9 +++++ 2 files changed, 71 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 5df3db58fcc6..b49472d1af84 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -17,6 +17,20 @@ * For details of cpus_onto(), see bitmap_onto in lib/bitmap.c. * For details of cpus_fold(), see bitmap_fold in lib/bitmap.c. * + * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + * Note: The alternate operations with the suffix "_nr" are used + * to limit the range of the loop to nr_cpu_ids instead of + * NR_CPUS when NR_CPUS > 64 for performance reasons. + * If NR_CPUS is <= 64 then most assembler bitmask + * operators execute faster with a constant range, so + * the operator will continue to use NR_CPUS. + * + * Another consideration is that nr_cpu_ids is initialized + * to NR_CPUS and isn't lowered until the possible cpus are + * discovered (including any disabled cpus). So early uses + * will span the entire range of NR_CPUS. + * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + * * The available cpumask operations are: * * void cpu_set(cpu, mask) turn on bit 'cpu' in mask @@ -38,12 +52,14 @@ * int cpus_empty(mask) Is mask empty (no bits sets)? * int cpus_full(mask) Is mask full (all bits sets)? * int cpus_weight(mask) Hamming weigh - number of set bits + * int cpus_weight_nr(mask) Same using nr_cpu_ids instead of NR_CPUS * * void cpus_shift_right(dst, src, n) Shift right * void cpus_shift_left(dst, src, n) Shift left * * int first_cpu(mask) Number lowest set bit, or NR_CPUS * int next_cpu(cpu, mask) Next cpu past 'cpu', or NR_CPUS + * int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids * * cpumask_t cpumask_of_cpu(cpu) Return cpumask with bit 'cpu' set * CPU_MASK_ALL Initializer - all bits set @@ -59,7 +75,8 @@ * void cpus_onto(dst, orig, relmap) *dst = orig relative to relmap * void cpus_fold(dst, orig, sz) dst bits = orig bits mod sz * - * for_each_cpu_mask(cpu, mask) for-loop cpu over mask + * for_each_cpu_mask(cpu, mask) for-loop cpu over mask using NR_CPUS + * for_each_cpu_mask_nr(cpu, mask) for-loop cpu over mask using nr_cpu_ids * * int num_online_cpus() Number of online CPUs * int num_possible_cpus() Number of all possible CPUs @@ -216,15 +233,6 @@ static inline void __cpus_shift_left(cpumask_t *dstp, bitmap_shift_left(dstp->bits, srcp->bits, n, nbits); } -#ifdef CONFIG_SMP -int __first_cpu(const cpumask_t *srcp); -#define first_cpu(src) __first_cpu(&(src)) -int __next_cpu(int n, const cpumask_t *srcp); -#define next_cpu(n, src) __next_cpu((n), &(src)) -#else -#define first_cpu(src) ({ (void)(src); 0; }) -#define next_cpu(n, src) ({ (void)(src); 1; }) -#endif #ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP extern cpumask_t *cpumask_of_cpu_map; @@ -343,15 +351,48 @@ static inline void __cpus_fold(cpumask_t *dstp, const cpumask_t *origp, bitmap_fold(dstp->bits, origp->bits, sz, nbits); } -#if NR_CPUS > 1 +#if NR_CPUS == 1 + +#define nr_cpu_ids 1 +#define first_cpu(src) ({ (void)(src); 0; }) +#define next_cpu(n, src) ({ (void)(src); 1; }) +#define any_online_cpu(mask) 0 +#define for_each_cpu_mask(cpu, mask) \ + for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) + +#else /* NR_CPUS > 1 */ + +extern int nr_cpu_ids; +int __first_cpu(const cpumask_t *srcp); +int __next_cpu(int n, const cpumask_t *srcp); +int __any_online_cpu(const cpumask_t *mask); + +#define first_cpu(src) __first_cpu(&(src)) +#define next_cpu(n, src) __next_cpu((n), &(src)) +#define any_online_cpu(mask) __any_online_cpu(&(mask)) #define for_each_cpu_mask(cpu, mask) \ for ((cpu) = first_cpu(mask); \ (cpu) < NR_CPUS; \ (cpu) = next_cpu((cpu), (mask))) -#else /* NR_CPUS == 1 */ -#define for_each_cpu_mask(cpu, mask) \ - for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) -#endif /* NR_CPUS */ +#endif + +#if NR_CPUS <= 64 + +#define next_cpu_nr(n, src) next_cpu(n, src) +#define cpus_weight_nr(cpumask) cpus_weight(cpumask) +#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask) + +#else /* NR_CPUS > 64 */ + +int __next_cpu_nr(int n, const cpumask_t *srcp); +#define next_cpu_nr(n, src) __next_cpu_nr((n), &(src)) +#define cpus_weight_nr(cpumask) __cpus_weight(&(cpumask), nr_cpu_ids) +#define for_each_cpu_mask_nr(cpu, mask) \ + for ((cpu) = first_cpu(mask); \ + (cpu) < nr_cpu_ids; \ + (cpu) = next_cpu_nr((cpu), (mask))) + +#endif /* NR_CPUS > 64 */ /* * The following particular system cpumasks and operations manage @@ -414,9 +455,9 @@ extern cpumask_t cpu_online_map; extern cpumask_t cpu_present_map; #if NR_CPUS > 1 -#define num_online_cpus() cpus_weight(cpu_online_map) -#define num_possible_cpus() cpus_weight(cpu_possible_map) -#define num_present_cpus() cpus_weight(cpu_present_map) +#define num_online_cpus() cpus_weight_nr(cpu_online_map) +#define num_possible_cpus() cpus_weight_nr(cpu_possible_map) +#define num_present_cpus() cpus_weight_nr(cpu_present_map) #define cpu_online(cpu) cpu_isset((cpu), cpu_online_map) #define cpu_possible(cpu) cpu_isset((cpu), cpu_possible_map) #define cpu_present(cpu) cpu_isset((cpu), cpu_present_map) @@ -431,17 +472,8 @@ extern cpumask_t cpu_present_map; #define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) -#ifdef CONFIG_SMP -extern int nr_cpu_ids; -#define any_online_cpu(mask) __any_online_cpu(&(mask)) -int __any_online_cpu(const cpumask_t *mask); -#else -#define nr_cpu_ids 1 -#define any_online_cpu(mask) 0 -#endif - -#define for_each_possible_cpu(cpu) for_each_cpu_mask((cpu), cpu_possible_map) -#define for_each_online_cpu(cpu) for_each_cpu_mask((cpu), cpu_online_map) -#define for_each_present_cpu(cpu) for_each_cpu_mask((cpu), cpu_present_map) +#define for_each_possible_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_possible_map) +#define for_each_online_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_online_map) +#define for_each_present_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_present_map) #endif /* __LINUX_CPUMASK_H */ diff --git a/lib/cpumask.c b/lib/cpumask.c index bb4f76d3c3e7..5f97dc25ef9c 100644 --- a/lib/cpumask.c +++ b/lib/cpumask.c @@ -15,6 +15,15 @@ int __next_cpu(int n, const cpumask_t *srcp) } EXPORT_SYMBOL(__next_cpu); +#if NR_CPUS > 64 +int __next_cpu_nr(int n, const cpumask_t *srcp) +{ + return min_t(int, nr_cpu_ids, + find_next_bit(srcp->bits, nr_cpu_ids, n+1)); +} +EXPORT_SYMBOL(__next_cpu_nr); +#endif + int __any_online_cpu(const cpumask_t *mask) { int cpu; -- cgit v1.2.3 From 334ef7a7ab8f80b689a2be95d5e62d2167900865 Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Mon, 12 May 2008 21:21:13 +0200 Subject: x86: use performance variant for_each_cpu_mask_nr Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by: Paul Jackson Reviewed-by: Christoph Lameter Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner commit 2d474871e2fb092eb46a0930aba5442e10eb96cc Author: Mike Travis Date: Mon May 12 21:21:13 2008 +0200 --- arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 6 +++--- arch/x86/kernel/cpu/cpufreq/p4-clockmod.c | 6 +++--- arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 8 ++++---- arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c | 10 +++++----- arch/x86/kernel/cpu/cpufreq/speedstep-ich.c | 4 ++-- arch/x86/kernel/cpu/intel_cacheinfo.c | 2 +- arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 4 ++-- arch/x86/kernel/io_apic_64.c | 8 ++++---- arch/x86/kernel/smpboot.c | 8 ++++---- arch/x86/xen/smp.c | 4 ++-- include/asm-x86/ipi.h | 2 +- 11 files changed, 31 insertions(+), 31 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c index b0c8208df9fa..dd097b835839 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -202,7 +202,7 @@ static void drv_write(struct drv_cmd *cmd) cpumask_t saved_mask = current->cpus_allowed; unsigned int i; - for_each_cpu_mask(i, cmd->mask) { + for_each_cpu_mask_nr(i, cmd->mask) { set_cpus_allowed_ptr(current, &cpumask_of_cpu(i)); do_drv_write(cmd); } @@ -451,7 +451,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, freqs.old = perf->states[perf->state].core_frequency * 1000; freqs.new = data->freq_table[next_state].frequency; - for_each_cpu_mask(i, cmd.mask) { + for_each_cpu_mask_nr(i, cmd.mask) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); } @@ -466,7 +466,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, } } - for_each_cpu_mask(i, cmd.mask) { + for_each_cpu_mask_nr(i, cmd.mask) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c index 199e4e05e5dc..f1685fb91fbd 100644 --- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c +++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c @@ -122,7 +122,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, return 0; /* notifiers */ - for_each_cpu_mask(i, policy->cpus) { + for_each_cpu_mask_nr(i, policy->cpus) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); } @@ -130,11 +130,11 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, /* run on each logical CPU, see section 13.15.3 of IA32 Intel Architecture Software * Developer's Manual, Volume 3 */ - for_each_cpu_mask(i, policy->cpus) + for_each_cpu_mask_nr(i, policy->cpus) cpufreq_p4_setdc(i, p4clockmod_table[newstate].index); /* notifiers */ - for_each_cpu_mask(i, policy->cpus) { + for_each_cpu_mask_nr(i, policy->cpus) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 46d4034d9f37..06d6eea5e07a 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -966,7 +966,7 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned i freqs.old = find_khz_freq_from_fid(data->currfid); freqs.new = find_khz_freq_from_fid(fid); - for_each_cpu_mask(i, *(data->available_cores)) { + for_each_cpu_mask_nr(i, *(data->available_cores)) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); } @@ -974,7 +974,7 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned i res = transition_fid_vid(data, fid, vid); freqs.new = find_khz_freq_from_fid(data->currfid); - for_each_cpu_mask(i, *(data->available_cores)) { + for_each_cpu_mask_nr(i, *(data->available_cores)) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } @@ -997,7 +997,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i freqs.old = find_khz_freq_from_pstate(data->powernow_table, data->currpstate); freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate); - for_each_cpu_mask(i, *(data->available_cores)) { + for_each_cpu_mask_nr(i, *(data->available_cores)) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); } @@ -1005,7 +1005,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i res = transition_pstate(data, pstate); freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate); - for_each_cpu_mask(i, *(data->available_cores)) { + for_each_cpu_mask_nr(i, *(data->available_cores)) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c index 908dd347c67e..8b0dd6f2a1ac 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c @@ -476,7 +476,7 @@ static int centrino_target (struct cpufreq_policy *policy, saved_mask = current->cpus_allowed; first_cpu = 1; cpus_clear(covered_cpus); - for_each_cpu_mask(j, online_policy_cpus) { + for_each_cpu_mask_nr(j, online_policy_cpus) { /* * Support for SMP systems. * Make sure we are running on CPU that wants to change freq @@ -517,7 +517,7 @@ static int centrino_target (struct cpufreq_policy *policy, dprintk("target=%dkHz old=%d new=%d msr=%04x\n", target_freq, freqs.old, freqs.new, msr); - for_each_cpu_mask(k, online_policy_cpus) { + for_each_cpu_mask_nr(k, online_policy_cpus) { freqs.cpu = k; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); @@ -540,7 +540,7 @@ static int centrino_target (struct cpufreq_policy *policy, preempt_enable(); } - for_each_cpu_mask(k, online_policy_cpus) { + for_each_cpu_mask_nr(k, online_policy_cpus) { freqs.cpu = k; cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } @@ -554,7 +554,7 @@ static int centrino_target (struct cpufreq_policy *policy, */ if (!cpus_empty(covered_cpus)) { - for_each_cpu_mask(j, covered_cpus) { + for_each_cpu_mask_nr(j, covered_cpus) { set_cpus_allowed_ptr(current, &cpumask_of_cpu(j)); wrmsr(MSR_IA32_PERF_CTL, oldmsr, h); @@ -564,7 +564,7 @@ static int centrino_target (struct cpufreq_policy *policy, tmp = freqs.new; freqs.new = freqs.old; freqs.old = tmp; - for_each_cpu_mask(j, online_policy_cpus) { + for_each_cpu_mask_nr(j, online_policy_cpus) { freqs.cpu = j; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c index 1b50244b1fdf..191f7263c61d 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c @@ -279,7 +279,7 @@ static int speedstep_target (struct cpufreq_policy *policy, cpus_allowed = current->cpus_allowed; - for_each_cpu_mask(i, policy->cpus) { + for_each_cpu_mask_nr(i, policy->cpus) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); } @@ -292,7 +292,7 @@ static int speedstep_target (struct cpufreq_policy *policy, /* allow to be run on all CPUs */ set_cpus_allowed_ptr(current, &cpus_allowed); - for_each_cpu_mask(i, policy->cpus) { + for_each_cpu_mask_nr(i, policy->cpus) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index 26d615dcb149..bfade3301c3a 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -488,7 +488,7 @@ static void __cpuinit cache_remove_shared_cpu_map(unsigned int cpu, int index) int sibling; this_leaf = CPUID4_INFO_IDX(cpu, index); - for_each_cpu_mask(sibling, this_leaf->shared_cpu_map) { + for_each_cpu_mask_nr(sibling, this_leaf->shared_cpu_map) { sibling_leaf = CPUID4_INFO_IDX(sibling, index); cpu_clear(cpu, sibling_leaf->shared_cpu_map); } diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c index 7c9a813e1193..88736cadbaa6 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c @@ -527,7 +527,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank) if (err) goto out_free; - for_each_cpu_mask(i, b->cpus) { + for_each_cpu_mask_nr(i, b->cpus) { if (i == cpu) continue; @@ -617,7 +617,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank) #endif /* remove all sibling symlinks before unregistering */ - for_each_cpu_mask(i, b->cpus) { + for_each_cpu_mask_nr(i, b->cpus) { if (i == cpu) continue; diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c index ef1a8dfcc529..e2838cbd2ff8 100644 --- a/arch/x86/kernel/io_apic_64.c +++ b/arch/x86/kernel/io_apic_64.c @@ -718,7 +718,7 @@ static int __assign_irq_vector(int irq, cpumask_t mask) return 0; } - for_each_cpu_mask(cpu, mask) { + for_each_cpu_mask_nr(cpu, mask) { cpumask_t domain, new_mask; int new_cpu; int vector, offset; @@ -739,7 +739,7 @@ next: continue; if (vector == IA32_SYSCALL_VECTOR) goto next; - for_each_cpu_mask(new_cpu, new_mask) + for_each_cpu_mask_nr(new_cpu, new_mask) if (per_cpu(vector_irq, new_cpu)[vector] != -1) goto next; /* Found one! */ @@ -749,7 +749,7 @@ next: cfg->move_in_progress = 1; cfg->old_domain = cfg->domain; } - for_each_cpu_mask(new_cpu, new_mask) + for_each_cpu_mask_nr(new_cpu, new_mask) per_cpu(vector_irq, new_cpu)[vector] = irq; cfg->vector = vector; cfg->domain = domain; @@ -781,7 +781,7 @@ static void __clear_irq_vector(int irq) vector = cfg->vector; cpus_and(mask, cfg->domain, cpu_online_map); - for_each_cpu_mask(cpu, mask) + for_each_cpu_mask_nr(cpu, mask) per_cpu(vector_irq, cpu)[vector] = -1; cfg->vector = 0; diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 38988491c622..fff8ebaa554f 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -487,7 +487,7 @@ void __cpuinit set_cpu_sibling_map(int cpu) cpu_set(cpu, cpu_sibling_setup_map); if (smp_num_siblings > 1) { - for_each_cpu_mask(i, cpu_sibling_setup_map) { + for_each_cpu_mask_nr(i, cpu_sibling_setup_map) { if (c->phys_proc_id == cpu_data(i).phys_proc_id && c->cpu_core_id == cpu_data(i).cpu_core_id) { cpu_set(i, per_cpu(cpu_sibling_map, cpu)); @@ -510,7 +510,7 @@ void __cpuinit set_cpu_sibling_map(int cpu) return; } - for_each_cpu_mask(i, cpu_sibling_setup_map) { + for_each_cpu_mask_nr(i, cpu_sibling_setup_map) { if (per_cpu(cpu_llc_id, cpu) != BAD_APICID && per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) { cpu_set(i, c->llc_shared_map); @@ -1298,7 +1298,7 @@ static void remove_siblinginfo(int cpu) int sibling; struct cpuinfo_x86 *c = &cpu_data(cpu); - for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) { + for_each_cpu_mask_nr(sibling, per_cpu(cpu_core_map, cpu)) { cpu_clear(cpu, per_cpu(cpu_core_map, sibling)); /*/ * last thread sibling in this cpu core going down @@ -1307,7 +1307,7 @@ static void remove_siblinginfo(int cpu) cpu_data(sibling).booted_cores--; } - for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu)) + for_each_cpu_mask_nr(sibling, per_cpu(cpu_sibling_map, cpu)) cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling)); cpus_clear(per_cpu(cpu_sibling_map, cpu)); cpus_clear(per_cpu(cpu_core_map, cpu)); diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 94e69000f982..7a70638797ed 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -345,7 +345,7 @@ static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector) cpus_and(mask, mask, cpu_online_map); - for_each_cpu_mask(cpu, mask) + for_each_cpu_mask_nr(cpu, mask) xen_send_IPI_one(cpu, vector); } @@ -413,7 +413,7 @@ int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *), /* Make sure other vcpus get a chance to run if they need to. */ yield = false; - for_each_cpu_mask(cpu, mask) + for_each_cpu_mask_nr(cpu, mask) if (xen_vcpu_stolen(cpu)) yield = true; diff --git a/include/asm-x86/ipi.h b/include/asm-x86/ipi.h index ecc80f341f37..5f7310aa3efd 100644 --- a/include/asm-x86/ipi.h +++ b/include/asm-x86/ipi.h @@ -121,7 +121,7 @@ static inline void send_IPI_mask_sequence(cpumask_t mask, int vector) * - mbligh */ local_irq_save(flags); - for_each_cpu_mask(query_cpu, mask) { + for_each_cpu_mask_nr(query_cpu, mask) { __send_IPI_dest_field(per_cpu(x86_cpu_to_apicid, query_cpu), vector, APIC_DEST_PHYSICAL); } -- cgit v1.2.3 From 7baac8b91f9871ba8cb09af84de4ae1d86d07812 Mon Sep 17 00:00:00 2001 From: Alexander van Heukelum Date: Tue, 13 May 2008 11:28:21 +0200 Subject: cpumask: make for_each_cpu_mask a bit smaller The for_each_cpu_mask loop is used quite often in the kernel. It makes use of two functions: first_cpu and next_cpu. This patch changes for_each_cpu_mask to use only the latter. Because next_cpu finds the next eligible cpu _after_ the given one, the iteration variable has to be initialized to -1 and next_cpu has to be called with this value before the first iteration. An x86_64 defconfig kernel (from sched/latest) is about 2500 bytes smaller with this patch applied: text data bss dec hex filename 6222517 917952 749932 7890401 7865e1 vmlinux.orig 6219922 917952 749932 7887806 785bbe vmlinux The same size reduction is seen for defconfig+MAXSMP text data bss dec hex filename 6241772 2563968 1492716 10298456 9d2458 vmlinux.orig 6239211 2563968 1492716 10295895 9d1a57 vmlinux Signed-off-by: Alexander van Heukelum Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/linux/cpumask.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index b49472d1af84..80226e776143 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -370,10 +370,10 @@ int __any_online_cpu(const cpumask_t *mask); #define first_cpu(src) __first_cpu(&(src)) #define next_cpu(n, src) __next_cpu((n), &(src)) #define any_online_cpu(mask) __any_online_cpu(&(mask)) -#define for_each_cpu_mask(cpu, mask) \ - for ((cpu) = first_cpu(mask); \ - (cpu) < NR_CPUS; \ - (cpu) = next_cpu((cpu), (mask))) +#define for_each_cpu_mask(cpu, mask) \ + for ((cpu) = -1; \ + (cpu) = next_cpu((cpu), (mask)), \ + (cpu) < NR_CPUS; ) #endif #if NR_CPUS <= 64 @@ -387,10 +387,10 @@ int __any_online_cpu(const cpumask_t *mask); int __next_cpu_nr(int n, const cpumask_t *srcp); #define next_cpu_nr(n, src) __next_cpu_nr((n), &(src)) #define cpus_weight_nr(cpumask) __cpus_weight(&(cpumask), nr_cpu_ids) -#define for_each_cpu_mask_nr(cpu, mask) \ - for ((cpu) = first_cpu(mask); \ - (cpu) < nr_cpu_ids; \ - (cpu) = next_cpu_nr((cpu), (mask))) +#define for_each_cpu_mask_nr(cpu, mask) \ + for ((cpu) = -1; \ + (cpu) = next_cpu_nr((cpu), (mask)), \ + (cpu) < nr_cpu_ids; ) #endif /* NR_CPUS > 64 */ -- cgit v1.2.3 From 9c44bc03fff44ff04237a7d92e35304a0e50c331 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 12 May 2008 21:21:04 +0200 Subject: softlockup: allow panic on lockup allow users to configure the softlockup detector to generate a panic instead of a warning message. high-availability systems might opt for this strict method (combined with panic_timeout= boot option/sysctl), instead of generating softlockup warnings ad infinitum. also, automated tests work better if the system reboots reliably (into a safe kernel) in case of a lockup. The full spectrum of configurability is supported: boot option, sysctl option and Kconfig option. it's default-disabled. Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- Documentation/kernel-parameters.txt | 3 +++ include/linux/sched.h | 3 ++- kernel/softlockup.c | 21 +++++++++++++++++++++ kernel/sysctl.c | 11 +++++++++++ lib/Kconfig.debug | 26 +++++++++++++++++++++++++- 5 files changed, 62 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index e07c432c731f..042588fa12e5 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1971,6 +1971,9 @@ and is between 256 and 4096 characters. It is defined in the file snd-ymfpci= [HW,ALSA] + softlockup_panic= + [KNL] Should the soft-lockup detector generate panics. + sonypi.*= [HW] Sony Programmable I/O Control Device driver See Documentation/sonypi.txt diff --git a/include/linux/sched.h b/include/linux/sched.h index 5395a6176f4b..71f5972dc48e 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -294,7 +294,8 @@ extern void softlockup_tick(void); extern void spawn_softlockup_task(void); extern void touch_softlockup_watchdog(void); extern void touch_all_softlockup_watchdogs(void); -extern unsigned long softlockup_thresh; +extern unsigned int softlockup_panic; +extern unsigned long softlockup_thresh; extern unsigned long sysctl_hung_task_check_count; extern unsigned long sysctl_hung_task_timeout_secs; extern unsigned long sysctl_hung_task_warnings; diff --git a/kernel/softlockup.c b/kernel/softlockup.c index 01b6522fd92b..78e0ad21cb0c 100644 --- a/kernel/softlockup.c +++ b/kernel/softlockup.c @@ -27,6 +27,21 @@ static DEFINE_PER_CPU(struct task_struct *, watchdog_task); static int __read_mostly did_panic; unsigned long __read_mostly softlockup_thresh = 60; +/* + * Should we panic (and reboot, if panic_timeout= is set) when a + * soft-lockup occurs: + */ +unsigned int __read_mostly softlockup_panic = + CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE; + +static int __init softlockup_panic_setup(char *str) +{ + softlockup_panic = simple_strtoul(str, NULL, 0); + + return 1; +} +__setup("softlockup_panic=", softlockup_panic_setup); + static int softlock_panic(struct notifier_block *this, unsigned long event, void *ptr) { @@ -120,6 +135,9 @@ void softlockup_tick(void) else dump_stack(); spin_unlock(&print_lock); + + if (softlockup_panic) + panic("softlockup: hung tasks"); } /* @@ -172,6 +190,9 @@ static void check_hung_task(struct task_struct *t, unsigned long now) t->last_switch_timestamp = now; touch_nmi_watchdog(); + + if (softlockup_panic) + panic("softlockup: blocked tasks"); } /* diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 29116652dca8..2d3b388c402d 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -727,6 +727,17 @@ static struct ctl_table kern_table[] = { }, #endif #ifdef CONFIG_DETECT_SOFTLOCKUP + { + .ctl_name = CTL_UNNUMBERED, + .procname = "softlockup_panic", + .data = &softlockup_panic, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_doulongvec_minmax, + .strategy = &sysctl_intvec, + .extra1 = &zero, + .extra2 = &one, + }, { .ctl_name = CTL_UNNUMBERED, .procname = "softlockup_thresh", diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index d2099f41aa1e..509ae35a9ef5 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -147,7 +147,7 @@ config DETECT_SOFTLOCKUP help Say Y here to enable the kernel to detect "soft lockups", which are bugs that cause the kernel to loop in kernel - mode for more than 10 seconds, without giving other tasks a + mode for more than 60 seconds, without giving other tasks a chance to run. When a soft-lockup is detected, the kernel will print the @@ -159,6 +159,30 @@ config DETECT_SOFTLOCKUP can be detected via the NMI-watchdog, on platforms that support it.) +config BOOTPARAM_SOFTLOCKUP_PANIC + bool "Panic (Reboot) On Soft Lockups" + depends on DETECT_SOFTLOCKUP + help + Say Y here to enable the kernel to panic on "soft lockups", + which are bugs that cause the kernel to loop in kernel + mode for more than 60 seconds, without giving other tasks a + chance to run. + + The panic can be used in combination with panic_timeout, + to cause the system to reboot automatically after a + lockup has been detected. This feature is useful for + high-availability systems that have uptime guarantees and + where a lockup must be resolved ASAP. + + Say N if unsure. + +config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE + int + depends on DETECT_SOFTLOCKUP + range 0 1 + default 0 if !BOOTPARAM_SOFTLOCKUP_PANIC + default 1 if BOOTPARAM_SOFTLOCKUP_PANIC + config SCHED_DEBUG bool "Collect scheduler debugging info" depends on DEBUG_KERNEL && PROC_FS -- cgit v1.2.3 From 9383d9679056e6cc4e7ff70f31da945a268238f4 Mon Sep 17 00:00:00 2001 From: Dimitri Sivanich Date: Mon, 12 May 2008 21:21:14 +0200 Subject: softlockup: fix softlockup_thresh unaligned access and disable detection at runtime Fix unaligned access errors when setting softlockup_thresh on 64 bit platforms. Allow softlockup detection to be disabled by setting softlockup_thresh <= 0. Detect that boot time softlockup detection has been disabled earlier in softlockup_tick. Signed-off-by: Dimitri Sivanich Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/linux/sched.h | 2 +- kernel/softlockup.c | 12 ++++++++++-- kernel/sysctl.c | 9 +++++---- 3 files changed, 16 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index 71f5972dc48e..ea26221644e2 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -295,10 +295,10 @@ extern void spawn_softlockup_task(void); extern void touch_softlockup_watchdog(void); extern void touch_all_softlockup_watchdogs(void); extern unsigned int softlockup_panic; -extern unsigned long softlockup_thresh; extern unsigned long sysctl_hung_task_check_count; extern unsigned long sysctl_hung_task_timeout_secs; extern unsigned long sysctl_hung_task_warnings; +extern int softlockup_thresh; #else static inline void softlockup_tick(void) { diff --git a/kernel/softlockup.c b/kernel/softlockup.c index 78e0ad21cb0c..a3a0b239b7f7 100644 --- a/kernel/softlockup.c +++ b/kernel/softlockup.c @@ -25,7 +25,7 @@ static DEFINE_PER_CPU(unsigned long, print_timestamp); static DEFINE_PER_CPU(struct task_struct *, watchdog_task); static int __read_mostly did_panic; -unsigned long __read_mostly softlockup_thresh = 60; +int __read_mostly softlockup_thresh = 60; /* * Should we panic (and reboot, if panic_timeout= is set) when a @@ -94,6 +94,14 @@ void softlockup_tick(void) struct pt_regs *regs = get_irq_regs(); unsigned long now; + /* Is detection switched off? */ + if (!per_cpu(watchdog_task, this_cpu) || softlockup_thresh <= 0) { + /* Be sure we don't false trigger if switched back on */ + if (touch_timestamp) + per_cpu(touch_timestamp, this_cpu) = 0; + return; + } + if (touch_timestamp == 0) { touch_softlockup_watchdog(); return; @@ -104,7 +112,7 @@ void softlockup_tick(void) /* report at most once a second */ if ((print_timestamp >= touch_timestamp && print_timestamp < (touch_timestamp + 1)) || - did_panic || !per_cpu(watchdog_task, this_cpu)) { + did_panic) { return; } diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 2d3b388c402d..31c19a79738d 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -84,12 +84,13 @@ extern int latencytop_enabled; extern int sysctl_nr_open_min, sysctl_nr_open_max; /* Constants used for minimum and maximum */ -#if defined(CONFIG_DETECT_SOFTLOCKUP) || defined(CONFIG_HIGHMEM) +#ifdef CONFIG_HIGHMEM static int one = 1; #endif #ifdef CONFIG_DETECT_SOFTLOCKUP static int sixty = 60; +static int neg_one = -1; #endif #ifdef CONFIG_MMU @@ -742,11 +743,11 @@ static struct ctl_table kern_table[] = { .ctl_name = CTL_UNNUMBERED, .procname = "softlockup_thresh", .data = &softlockup_thresh, - .maxlen = sizeof(unsigned long), + .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_doulongvec_minmax, + .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, - .extra1 = &one, + .extra1 = &neg_one, .extra2 = &sixty, }, { -- cgit v1.2.3 From 444933c6c6e82362ba8e0da26f41a53c433d11ef Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:28 +0900 Subject: [IA64] pvops: preparation: remove extern in irq_ia64.c remove extern declaration of handle_IPI() in irq_ia64.c. Instead, declare it in asm-ia64/smp.h. Later handle_IPI() will be referenced from another file. Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/irq_ia64.c | 1 - include/asm-ia64/smp.h | 2 ++ 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 5538471e8d68..c48171bc7969 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -600,7 +600,6 @@ static irqreturn_t dummy_handler (int irq, void *dev_id) { BUG(); } -extern irqreturn_t handle_IPI (int irq, void *dev_id); static struct irqaction ipi_irqaction = { .handler = handle_IPI, diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h index ec5f355fb7e3..2984e262fc6c 100644 --- a/include/asm-ia64/smp.h +++ b/include/asm-ia64/smp.h @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -123,6 +124,7 @@ extern void __init smp_build_cpu_map(void); extern void __init init_smp_config (void); extern void smp_do_timer (struct pt_regs *regs); +extern irqreturn_t handle_IPI(int irq, void *dev_id); extern void smp_send_reschedule (int cpu); extern void lock_ipi_calllock(void); extern void unlock_ipi_calllock(void); -- cgit v1.2.3 From 8311d21c35092aa4c4a12e0140e1ef3443489d77 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:29 +0900 Subject: [IA64] pvops: preparation: move the constants, LOAD_OFFSET, to a header file. Move the LOAD_OFFSET definition from vmlinux.lds.S into system.h. On paravirtualized environments, it is necessary to detect the execution environment. One of the solutions is the multi entry point. The multi entry point allows a boot loader to start the kernel execution from the entry point which is different from the ELF entry point. The non standard entry point will defined as the specialized elf note which contains the LMA of the entry point symbol. The constant, LOAD_OFFSET, is necessary to calculate the symbol's LMA. Move the definition into the public header file to make it available to the multi entry point support. Cc: "He, Qing" Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/vmlinux.lds.S | 1 - include/asm-ia64/system.h | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 5929ab10a289..5a77206c2492 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S @@ -4,7 +4,6 @@ #include #include -#define LOAD_OFFSET (KERNEL_START - KERNEL_TR_PAGE_SIZE) #include #define IVT_TEXT \ diff --git a/include/asm-ia64/system.h b/include/asm-ia64/system.h index 26e250bfb912..0db8c9812ceb 100644 --- a/include/asm-ia64/system.h +++ b/include/asm-ia64/system.h @@ -26,6 +26,7 @@ */ #define KERNEL_START (GATE_ADDR+__IA64_UL_CONST(0x100000000)) #define PERCPU_ADDR (-PERCPU_PAGE_SIZE) +#define LOAD_OFFSET (KERNEL_START - KERNEL_TR_PAGE_SIZE) #ifndef __ASSEMBLY__ -- cgit v1.2.3 From 0e1a77ccdbc4ca59ccaf84168a0c3c1df4fadfc0 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:30 +0900 Subject: [IA64] pvops: preparation: introduce ia64_set_rr0_to_rr4() to make kernel paravirtualization friendly. make kernel paravirtualization friendly by introducing ia64_set_rr0_to_rr4(). ia64/Xen will replace setting rr[0-4] with single hypercall later. Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- include/asm-ia64/intrinsics.h | 9 +++++++++ include/asm-ia64/mmu_context.h | 6 +----- 2 files changed, 10 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/asm-ia64/intrinsics.h b/include/asm-ia64/intrinsics.h index f1135b5b94c3..9b83f8f01678 100644 --- a/include/asm-ia64/intrinsics.h +++ b/include/asm-ia64/intrinsics.h @@ -18,6 +18,15 @@ # include #endif +#define ia64_set_rr0_to_rr4(val0, val1, val2, val3, val4) \ +do { \ + ia64_set_rr(0x0000000000000000UL, (val0)); \ + ia64_set_rr(0x2000000000000000UL, (val1)); \ + ia64_set_rr(0x4000000000000000UL, (val2)); \ + ia64_set_rr(0x6000000000000000UL, (val3)); \ + ia64_set_rr(0x8000000000000000UL, (val4)); \ +} while (0) + /* * Force an unresolved reference if someone tries to use * ia64_fetch_and_add() with a bad value. diff --git a/include/asm-ia64/mmu_context.h b/include/asm-ia64/mmu_context.h index cef2400983fa..040bc87db930 100644 --- a/include/asm-ia64/mmu_context.h +++ b/include/asm-ia64/mmu_context.h @@ -152,11 +152,7 @@ reload_context (nv_mm_context_t context) # endif #endif - ia64_set_rr(0x0000000000000000UL, rr0); - ia64_set_rr(0x2000000000000000UL, rr1); - ia64_set_rr(0x4000000000000000UL, rr2); - ia64_set_rr(0x6000000000000000UL, rr3); - ia64_set_rr(0x8000000000000000UL, rr4); + ia64_set_rr0_to_rr4(rr0, rr1, rr2, rr3, rr4); ia64_srlz_i(); /* srlz.i implies srlz.d */ } -- cgit v1.2.3 From 72cb4256c7574e1c2c1350fa92eecd7cef9e4772 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:31 +0900 Subject: [IA64] pvops: preparation: introduce ia64_get_psr_i() to make kernel paravirtualization friendly. __local_irq_save() and local_save_flags() are used to mask interruptions. They read all psr bits that requres whole bit emulation. On the other hand, reading only psr.i, the single bit, can be virtualized cheaply. Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- include/asm-ia64/intrinsics.h | 2 ++ include/asm-ia64/system.h | 10 ++++++++-- 2 files changed, 10 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-ia64/intrinsics.h b/include/asm-ia64/intrinsics.h index 9b83f8f01678..a3b96892f83f 100644 --- a/include/asm-ia64/intrinsics.h +++ b/include/asm-ia64/intrinsics.h @@ -18,6 +18,8 @@ # include #endif +#define ia64_get_psr_i() (ia64_getreg(_IA64_REG_PSR) & IA64_PSR_I) + #define ia64_set_rr0_to_rr4(val0, val1, val2, val3, val4) \ do { \ ia64_set_rr(0x0000000000000000UL, (val0)); \ diff --git a/include/asm-ia64/system.h b/include/asm-ia64/system.h index 0db8c9812ceb..927a381c20ca 100644 --- a/include/asm-ia64/system.h +++ b/include/asm-ia64/system.h @@ -123,10 +123,16 @@ extern struct ia64_boot_param { * write a floating-point register right before reading the PSR * and that writes to PSR.mfl */ +#ifdef CONFIG_PARAVIRT +#define __local_save_flags() ia64_get_psr_i() +#else +#define __local_save_flags() ia64_getreg(_IA64_REG_PSR) +#endif + #define __local_irq_save(x) \ do { \ ia64_stop(); \ - (x) = ia64_getreg(_IA64_REG_PSR); \ + (x) = __local_save_flags(); \ ia64_stop(); \ ia64_rsm(IA64_PSR_I); \ } while (0) @@ -174,7 +180,7 @@ do { \ #endif /* !CONFIG_IA64_DEBUG_IRQ */ #define local_irq_enable() ({ ia64_stop(); ia64_ssm(IA64_PSR_I); ia64_srlz_d(); }) -#define local_save_flags(flags) ({ ia64_stop(); (flags) = ia64_getreg(_IA64_REG_PSR); }) +#define local_save_flags(flags) ({ ia64_stop(); (flags) = __local_save_flags(); }) #define irqs_disabled() \ ({ \ -- cgit v1.2.3 From 90aeb169c03a96e22674741f08054023c33d595b Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:32 +0900 Subject: [IA64] pvops: introduce pv_info which describes some random info. introduce pv_info which describes some randome info about underlying execution environment. Cc: Jes Sorensen Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/Makefile | 2 ++ arch/ia64/kernel/paravirt.c | 41 ++++++++++++++++++++++++++++++ include/asm-ia64/paravirt.h | 62 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 105 insertions(+) create mode 100644 arch/ia64/kernel/paravirt.c create mode 100644 include/asm-ia64/paravirt.h (limited to 'include') diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 13fd10e8699e..10a4ddb5b274 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -36,6 +36,8 @@ obj-$(CONFIG_PCI_MSI) += msi_ia64.o mca_recovery-y += mca_drv.o mca_drv_asm.o obj-$(CONFIG_IA64_MC_ERR_INJECT)+= err_inject.o +obj-$(CONFIG_PARAVIRT) += paravirt.o + obj-$(CONFIG_IA64_ESI) += esi.o ifneq ($(CONFIG_IA64_ESI),) obj-y += esi_stub.o # must be in kernel proper diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c new file mode 100644 index 000000000000..d295ea5e59c5 --- /dev/null +++ b/arch/ia64/kernel/paravirt.c @@ -0,0 +1,41 @@ +/****************************************************************************** + * arch/ia64/kernel/paravirt.c + * + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * Yaozu (Eddie) Dong + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include + +#include +#include +#include +#include + +#include +#include + +/*************************************************************************** + * general info + */ +struct pv_info pv_info = { + .kernel_rpl = 0, + .paravirt_enabled = 0, + .name = "bare hardware" +}; diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h new file mode 100644 index 000000000000..26b43342308e --- /dev/null +++ b/include/asm-ia64/paravirt.h @@ -0,0 +1,62 @@ +/****************************************************************************** + * include/asm-ia64/paravirt.h + * + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + + +#ifndef __ASM_PARAVIRT_H +#define __ASM_PARAVIRT_H + +#ifdef CONFIG_PARAVIRT_GUEST + +#ifndef __ASSEMBLY__ + +#include +#include + +/****************************************************************************** + * general info + */ +struct pv_info { + unsigned int kernel_rpl; + int paravirt_enabled; + const char *name; +}; + +extern struct pv_info pv_info; + +static inline int paravirt_enabled(void) +{ + return pv_info.paravirt_enabled; +} + +static inline unsigned int get_kernel_rpl(void) +{ + return pv_info.kernel_rpl; +} + +#endif /* !__ASSEMBLY__ */ + +#else +/* fallback for native case */ + +#endif /* CONFIG_PARAVIRT_GUEST */ + +#endif /* __ASM_PARAVIRT_H */ -- cgit v1.2.3 From 3e0879deb700f322f6c81ab34f056fc72d15ec02 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:33 +0900 Subject: [IA64] pvops: add an early setup hook for pv_ops. This patch adds a setup hook in the very early boot sequence before start_kernel() to initialize paravirtualization stuff. The hook will be set by each pv loader code or by using multi entry point. Signed-off-by: Qing He Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/head.S | 41 +++++++++++++++++++++++++++++++++++++++++ include/asm-ia64/paravirt.h | 3 +++ 2 files changed, 44 insertions(+) (limited to 'include') diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S index ddeab4e36fd5..db540e58c783 100644 --- a/arch/ia64/kernel/head.S +++ b/arch/ia64/kernel/head.S @@ -26,11 +26,14 @@ #include #include #include +#include #include #include #include #include #include +#include +#include #ifdef CONFIG_HOTPLUG_CPU #define SAL_PSR_BITS_TO_SET \ @@ -367,6 +370,44 @@ start_ap: ;; (isBP) st8 [r2]=r28 // save the address of the boot param area passed by the bootloader +#ifdef CONFIG_PARAVIRT + + movl r14=hypervisor_setup_hooks + movl r15=hypervisor_type + mov r16=num_hypervisor_hooks + ;; + ld8 r2=[r15] + ;; + cmp.ltu p7,p0=r2,r16 // array size check + shladd r8=r2,3,r14 + ;; +(p7) ld8 r9=[r8] + ;; +(p7) mov b1=r9 +(p7) cmp.ne.unc p7,p0=r9,r0 // no actual branch to NULL + ;; +(p7) br.call.sptk.many rp=b1 + + __INITDATA + +default_setup_hook = 0 // Currently nothing needs to be done. + + .weak xen_setup_hook + + .global hypervisor_type +hypervisor_type: + data8 PARAVIRT_HYPERVISOR_TYPE_DEFAULT + + // must have the same order with PARAVIRT_HYPERVISOR_TYPE_xxx + +hypervisor_setup_hooks: + data8 default_setup_hook + data8 xen_setup_hook +num_hypervisor_hooks = (. - hypervisor_setup_hooks) / 8 + .previous + +#endif + #ifdef CONFIG_SMP (isAP) br.call.sptk.many rp=start_secondary .ret0: diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h index 26b43342308e..1032b216aea6 100644 --- a/include/asm-ia64/paravirt.h +++ b/include/asm-ia64/paravirt.h @@ -26,6 +26,9 @@ #ifdef CONFIG_PARAVIRT_GUEST +#define PARAVIRT_HYPERVISOR_TYPE_DEFAULT 0 +#define PARAVIRT_HYPERVISOR_TYPE_XEN 1 + #ifndef __ASSEMBLY__ #include -- cgit v1.2.3 From 1ff730b52f0c3e4e3846c3ff345c5526b2633ba9 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:34 +0900 Subject: [IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions. introduce pv_cpu_ops to paravirtualize privleged instructions which are defined by ia64 intrinsics. make them indirect C function calls by introducing function tables, pv_cpu_ops. Signed-off-by: Yaozu (Eddie) Dong Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/paravirt.c | 247 +++++++++++++++++++++++++++++++++++++ include/asm-ia64/Kbuild | 2 +- include/asm-ia64/gcc_intrin.h | 24 ++-- include/asm-ia64/intel_intrin.h | 41 +++--- include/asm-ia64/intrinsics.h | 62 ++++++++-- include/asm-ia64/paravirt_privop.h | 91 ++++++++++++++ 6 files changed, 425 insertions(+), 42 deletions(-) create mode 100644 include/asm-ia64/paravirt_privop.h (limited to 'include') diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index d295ea5e59c5..e5482bb6841e 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -39,3 +40,249 @@ struct pv_info pv_info = { .paravirt_enabled = 0, .name = "bare hardware" }; + +/*************************************************************************** + * pv_cpu_ops + * intrinsics hooks. + */ + +/* ia64_native_xxx are macros so that we have to make them real functions */ + +#define DEFINE_VOID_FUNC1(name) \ + static void \ + ia64_native_ ## name ## _func(unsigned long arg) \ + { \ + ia64_native_ ## name(arg); \ + } \ + +#define DEFINE_VOID_FUNC2(name) \ + static void \ + ia64_native_ ## name ## _func(unsigned long arg0, \ + unsigned long arg1) \ + { \ + ia64_native_ ## name(arg0, arg1); \ + } \ + +#define DEFINE_FUNC0(name) \ + static unsigned long \ + ia64_native_ ## name ## _func(void) \ + { \ + return ia64_native_ ## name(); \ + } + +#define DEFINE_FUNC1(name, type) \ + static unsigned long \ + ia64_native_ ## name ## _func(type arg) \ + { \ + return ia64_native_ ## name(arg); \ + } \ + +DEFINE_VOID_FUNC1(fc); +DEFINE_VOID_FUNC1(intrin_local_irq_restore); + +DEFINE_VOID_FUNC2(ptcga); +DEFINE_VOID_FUNC2(set_rr); + +DEFINE_FUNC0(get_psr_i); + +DEFINE_FUNC1(thash, unsigned long); +DEFINE_FUNC1(get_cpuid, int); +DEFINE_FUNC1(get_pmd, int); +DEFINE_FUNC1(get_rr, unsigned long); + +static void +ia64_native_ssm_i_func(void) +{ + ia64_native_ssm(IA64_PSR_I); +} + +static void +ia64_native_rsm_i_func(void) +{ + ia64_native_rsm(IA64_PSR_I); +} + +static void +ia64_native_set_rr0_to_rr4_func(unsigned long val0, unsigned long val1, + unsigned long val2, unsigned long val3, + unsigned long val4) +{ + ia64_native_set_rr0_to_rr4(val0, val1, val2, val3, val4); +} + +#define CASE_GET_REG(id) \ + case _IA64_REG_ ## id: \ + res = ia64_native_getreg(_IA64_REG_ ## id); \ + break; +#define CASE_GET_AR(id) CASE_GET_REG(AR_ ## id) +#define CASE_GET_CR(id) CASE_GET_REG(CR_ ## id) + +unsigned long +ia64_native_getreg_func(int regnum) +{ + unsigned long res = -1; + switch (regnum) { + CASE_GET_REG(GP); + CASE_GET_REG(IP); + CASE_GET_REG(PSR); + CASE_GET_REG(TP); + CASE_GET_REG(SP); + + CASE_GET_AR(KR0); + CASE_GET_AR(KR1); + CASE_GET_AR(KR2); + CASE_GET_AR(KR3); + CASE_GET_AR(KR4); + CASE_GET_AR(KR5); + CASE_GET_AR(KR6); + CASE_GET_AR(KR7); + CASE_GET_AR(RSC); + CASE_GET_AR(BSP); + CASE_GET_AR(BSPSTORE); + CASE_GET_AR(RNAT); + CASE_GET_AR(FCR); + CASE_GET_AR(EFLAG); + CASE_GET_AR(CSD); + CASE_GET_AR(SSD); + CASE_GET_AR(CFLAG); + CASE_GET_AR(FSR); + CASE_GET_AR(FIR); + CASE_GET_AR(FDR); + CASE_GET_AR(CCV); + CASE_GET_AR(UNAT); + CASE_GET_AR(FPSR); + CASE_GET_AR(ITC); + CASE_GET_AR(PFS); + CASE_GET_AR(LC); + CASE_GET_AR(EC); + + CASE_GET_CR(DCR); + CASE_GET_CR(ITM); + CASE_GET_CR(IVA); + CASE_GET_CR(PTA); + CASE_GET_CR(IPSR); + CASE_GET_CR(ISR); + CASE_GET_CR(IIP); + CASE_GET_CR(IFA); + CASE_GET_CR(ITIR); + CASE_GET_CR(IIPA); + CASE_GET_CR(IFS); + CASE_GET_CR(IIM); + CASE_GET_CR(IHA); + CASE_GET_CR(LID); + CASE_GET_CR(IVR); + CASE_GET_CR(TPR); + CASE_GET_CR(EOI); + CASE_GET_CR(IRR0); + CASE_GET_CR(IRR1); + CASE_GET_CR(IRR2); + CASE_GET_CR(IRR3); + CASE_GET_CR(ITV); + CASE_GET_CR(PMV); + CASE_GET_CR(CMCV); + CASE_GET_CR(LRR0); + CASE_GET_CR(LRR1); + + default: + printk(KERN_CRIT "wrong_getreg %d\n", regnum); + break; + } + return res; +} + +#define CASE_SET_REG(id) \ + case _IA64_REG_ ## id: \ + ia64_native_setreg(_IA64_REG_ ## id, val); \ + break; +#define CASE_SET_AR(id) CASE_SET_REG(AR_ ## id) +#define CASE_SET_CR(id) CASE_SET_REG(CR_ ## id) + +void +ia64_native_setreg_func(int regnum, unsigned long val) +{ + switch (regnum) { + case _IA64_REG_PSR_L: + ia64_native_setreg(_IA64_REG_PSR_L, val); + ia64_dv_serialize_data(); + break; + CASE_SET_REG(SP); + CASE_SET_REG(GP); + + CASE_SET_AR(KR0); + CASE_SET_AR(KR1); + CASE_SET_AR(KR2); + CASE_SET_AR(KR3); + CASE_SET_AR(KR4); + CASE_SET_AR(KR5); + CASE_SET_AR(KR6); + CASE_SET_AR(KR7); + CASE_SET_AR(RSC); + CASE_SET_AR(BSP); + CASE_SET_AR(BSPSTORE); + CASE_SET_AR(RNAT); + CASE_SET_AR(FCR); + CASE_SET_AR(EFLAG); + CASE_SET_AR(CSD); + CASE_SET_AR(SSD); + CASE_SET_AR(CFLAG); + CASE_SET_AR(FSR); + CASE_SET_AR(FIR); + CASE_SET_AR(FDR); + CASE_SET_AR(CCV); + CASE_SET_AR(UNAT); + CASE_SET_AR(FPSR); + CASE_SET_AR(ITC); + CASE_SET_AR(PFS); + CASE_SET_AR(LC); + CASE_SET_AR(EC); + + CASE_SET_CR(DCR); + CASE_SET_CR(ITM); + CASE_SET_CR(IVA); + CASE_SET_CR(PTA); + CASE_SET_CR(IPSR); + CASE_SET_CR(ISR); + CASE_SET_CR(IIP); + CASE_SET_CR(IFA); + CASE_SET_CR(ITIR); + CASE_SET_CR(IIPA); + CASE_SET_CR(IFS); + CASE_SET_CR(IIM); + CASE_SET_CR(IHA); + CASE_SET_CR(LID); + CASE_SET_CR(IVR); + CASE_SET_CR(TPR); + CASE_SET_CR(EOI); + CASE_SET_CR(IRR0); + CASE_SET_CR(IRR1); + CASE_SET_CR(IRR2); + CASE_SET_CR(IRR3); + CASE_SET_CR(ITV); + CASE_SET_CR(PMV); + CASE_SET_CR(CMCV); + CASE_SET_CR(LRR0); + CASE_SET_CR(LRR1); + default: + printk(KERN_CRIT "wrong setreg %d\n", regnum); + break; + } +} + +struct pv_cpu_ops pv_cpu_ops = { + .fc = ia64_native_fc_func, + .thash = ia64_native_thash_func, + .get_cpuid = ia64_native_get_cpuid_func, + .get_pmd = ia64_native_get_pmd_func, + .ptcga = ia64_native_ptcga_func, + .get_rr = ia64_native_get_rr_func, + .set_rr = ia64_native_set_rr_func, + .set_rr0_to_rr4 = ia64_native_set_rr0_to_rr4_func, + .ssm_i = ia64_native_ssm_i_func, + .getreg = ia64_native_getreg_func, + .setreg = ia64_native_setreg_func, + .rsm_i = ia64_native_rsm_i_func, + .get_psr_i = ia64_native_get_psr_i_func, + .intrin_local_irq_restore + = ia64_native_intrin_local_irq_restore_func, +}; +EXPORT_SYMBOL(pv_cpu_ops); diff --git a/include/asm-ia64/Kbuild b/include/asm-ia64/Kbuild index eb24a3f47caa..ccbe8ae47a61 100644 --- a/include/asm-ia64/Kbuild +++ b/include/asm-ia64/Kbuild @@ -5,12 +5,12 @@ header-y += fpu.h header-y += fpswa.h header-y += ia64regs.h header-y += intel_intrin.h -header-y += intrinsics.h header-y += perfmon_default_smpl.h header-y += ptrace_offsets.h header-y += rse.h header-y += ucontext.h unifdef-y += gcc_intrin.h +unifdef-y += intrinsics.h unifdef-y += perfmon.h unifdef-y += ustack.h diff --git a/include/asm-ia64/gcc_intrin.h b/include/asm-ia64/gcc_intrin.h index 2fe292c275fe..0f5b55921758 100644 --- a/include/asm-ia64/gcc_intrin.h +++ b/include/asm-ia64/gcc_intrin.h @@ -32,7 +32,7 @@ extern void ia64_bad_param_for_getreg (void); register unsigned long ia64_r13 asm ("r13") __used; #endif -#define ia64_setreg(regnum, val) \ +#define ia64_native_setreg(regnum, val) \ ({ \ switch (regnum) { \ case _IA64_REG_PSR_L: \ @@ -61,7 +61,7 @@ register unsigned long ia64_r13 asm ("r13") __used; } \ }) -#define ia64_getreg(regnum) \ +#define ia64_native_getreg(regnum) \ ({ \ __u64 ia64_intri_res; \ \ @@ -385,7 +385,7 @@ register unsigned long ia64_r13 asm ("r13") __used; #define ia64_invala() asm volatile ("invala" ::: "memory") -#define ia64_thash(addr) \ +#define ia64_native_thash(addr) \ ({ \ __u64 ia64_intri_res; \ asm volatile ("thash %0=%1" : "=r"(ia64_intri_res) : "r" (addr)); \ @@ -438,10 +438,10 @@ register unsigned long ia64_r13 asm ("r13") __used; #define ia64_set_pmd(index, val) \ asm volatile ("mov pmd[%0]=%1" :: "r"(index), "r"(val) : "memory") -#define ia64_set_rr(index, val) \ +#define ia64_native_set_rr(index, val) \ asm volatile ("mov rr[%0]=%1" :: "r"(index), "r"(val) : "memory"); -#define ia64_get_cpuid(index) \ +#define ia64_native_get_cpuid(index) \ ({ \ __u64 ia64_intri_res; \ asm volatile ("mov %0=cpuid[%r1]" : "=r"(ia64_intri_res) : "rO"(index)); \ @@ -477,33 +477,33 @@ register unsigned long ia64_r13 asm ("r13") __used; }) -#define ia64_get_pmd(index) \ +#define ia64_native_get_pmd(index) \ ({ \ __u64 ia64_intri_res; \ asm volatile ("mov %0=pmd[%1]" : "=r"(ia64_intri_res) : "r"(index)); \ ia64_intri_res; \ }) -#define ia64_get_rr(index) \ +#define ia64_native_get_rr(index) \ ({ \ __u64 ia64_intri_res; \ asm volatile ("mov %0=rr[%1]" : "=r"(ia64_intri_res) : "r" (index)); \ ia64_intri_res; \ }) -#define ia64_fc(addr) asm volatile ("fc %0" :: "r"(addr) : "memory") +#define ia64_native_fc(addr) asm volatile ("fc %0" :: "r"(addr) : "memory") #define ia64_sync_i() asm volatile (";; sync.i" ::: "memory") -#define ia64_ssm(mask) asm volatile ("ssm %0":: "i"((mask)) : "memory") -#define ia64_rsm(mask) asm volatile ("rsm %0":: "i"((mask)) : "memory") +#define ia64_native_ssm(mask) asm volatile ("ssm %0":: "i"((mask)) : "memory") +#define ia64_native_rsm(mask) asm volatile ("rsm %0":: "i"((mask)) : "memory") #define ia64_sum(mask) asm volatile ("sum %0":: "i"((mask)) : "memory") #define ia64_rum(mask) asm volatile ("rum %0":: "i"((mask)) : "memory") #define ia64_ptce(addr) asm volatile ("ptc.e %0" :: "r"(addr)) -#define ia64_ptcga(addr, size) \ +#define ia64_native_ptcga(addr, size) \ do { \ asm volatile ("ptc.ga %0,%1" :: "r"(addr), "r"(size) : "memory"); \ ia64_dv_serialize_data(); \ @@ -608,7 +608,7 @@ do { \ } \ }) -#define ia64_intrin_local_irq_restore(x) \ +#define ia64_native_intrin_local_irq_restore(x) \ do { \ asm volatile (";; cmp.ne p6,p7=%0,r0;;" \ "(p6) ssm psr.i;" \ diff --git a/include/asm-ia64/intel_intrin.h b/include/asm-ia64/intel_intrin.h index a520d103d808..53cec577558a 100644 --- a/include/asm-ia64/intel_intrin.h +++ b/include/asm-ia64/intel_intrin.h @@ -16,8 +16,8 @@ * intrinsic */ -#define ia64_getreg __getReg -#define ia64_setreg __setReg +#define ia64_native_getreg __getReg +#define ia64_native_setreg __setReg #define ia64_hint __hint #define ia64_hint_pause __hint_pause @@ -39,10 +39,10 @@ #define ia64_invala_fr __invala_fr #define ia64_nop __nop #define ia64_sum __sum -#define ia64_ssm __ssm +#define ia64_native_ssm __ssm #define ia64_rum __rum -#define ia64_rsm __rsm -#define ia64_fc __fc +#define ia64_native_rsm __rsm +#define ia64_native_fc __fc #define ia64_ldfs __ldfs #define ia64_ldfd __ldfd @@ -88,16 +88,17 @@ __setIndReg(_IA64_REG_INDR_PMC, index, val) #define ia64_set_pmd(index, val) \ __setIndReg(_IA64_REG_INDR_PMD, index, val) -#define ia64_set_rr(index, val) \ +#define ia64_native_set_rr(index, val) \ __setIndReg(_IA64_REG_INDR_RR, index, val) -#define ia64_get_cpuid(index) __getIndReg(_IA64_REG_INDR_CPUID, index) -#define __ia64_get_dbr(index) __getIndReg(_IA64_REG_INDR_DBR, index) -#define ia64_get_ibr(index) __getIndReg(_IA64_REG_INDR_IBR, index) -#define ia64_get_pkr(index) __getIndReg(_IA64_REG_INDR_PKR, index) -#define ia64_get_pmc(index) __getIndReg(_IA64_REG_INDR_PMC, index) -#define ia64_get_pmd(index) __getIndReg(_IA64_REG_INDR_PMD, index) -#define ia64_get_rr(index) __getIndReg(_IA64_REG_INDR_RR, index) +#define ia64_native_get_cpuid(index) \ + __getIndReg(_IA64_REG_INDR_CPUID, index) +#define __ia64_get_dbr(index) __getIndReg(_IA64_REG_INDR_DBR, index) +#define ia64_get_ibr(index) __getIndReg(_IA64_REG_INDR_IBR, index) +#define ia64_get_pkr(index) __getIndReg(_IA64_REG_INDR_PKR, index) +#define ia64_get_pmc(index) __getIndReg(_IA64_REG_INDR_PMC, index) +#define ia64_native_get_pmd(index) __getIndReg(_IA64_REG_INDR_PMD, index) +#define ia64_native_get_rr(index) __getIndReg(_IA64_REG_INDR_RR, index) #define ia64_srlz_d __dsrlz #define ia64_srlz_i __isrlz @@ -119,16 +120,16 @@ #define ia64_ld8_acq __ld8_acq #define ia64_sync_i __synci -#define ia64_thash __thash -#define ia64_ttag __ttag +#define ia64_native_thash __thash +#define ia64_native_ttag __ttag #define ia64_itcd __itcd #define ia64_itci __itci #define ia64_itrd __itrd #define ia64_itri __itri #define ia64_ptce __ptce #define ia64_ptcl __ptcl -#define ia64_ptcg __ptcg -#define ia64_ptcga __ptcga +#define ia64_native_ptcg __ptcg +#define ia64_native_ptcga __ptcga #define ia64_ptri __ptri #define ia64_ptrd __ptrd #define ia64_dep_mi _m64_dep_mi @@ -145,13 +146,13 @@ #define ia64_lfetch_fault __lfetch_fault #define ia64_lfetch_fault_excl __lfetch_fault_excl -#define ia64_intrin_local_irq_restore(x) \ +#define ia64_native_intrin_local_irq_restore(x) \ do { \ if ((x) != 0) { \ - ia64_ssm(IA64_PSR_I); \ + ia64_native_ssm(IA64_PSR_I); \ ia64_srlz_d(); \ } else { \ - ia64_rsm(IA64_PSR_I); \ + ia64_native_rsm(IA64_PSR_I); \ } \ } while (0) diff --git a/include/asm-ia64/intrinsics.h b/include/asm-ia64/intrinsics.h index a3b96892f83f..47d686dba1eb 100644 --- a/include/asm-ia64/intrinsics.h +++ b/include/asm-ia64/intrinsics.h @@ -18,15 +18,15 @@ # include #endif -#define ia64_get_psr_i() (ia64_getreg(_IA64_REG_PSR) & IA64_PSR_I) - -#define ia64_set_rr0_to_rr4(val0, val1, val2, val3, val4) \ -do { \ - ia64_set_rr(0x0000000000000000UL, (val0)); \ - ia64_set_rr(0x2000000000000000UL, (val1)); \ - ia64_set_rr(0x4000000000000000UL, (val2)); \ - ia64_set_rr(0x6000000000000000UL, (val3)); \ - ia64_set_rr(0x8000000000000000UL, (val4)); \ +#define ia64_native_get_psr_i() (ia64_native_getreg(_IA64_REG_PSR) & IA64_PSR_I) + +#define ia64_native_set_rr0_to_rr4(val0, val1, val2, val3, val4) \ +do { \ + ia64_native_set_rr(0x0000000000000000UL, (val0)); \ + ia64_native_set_rr(0x2000000000000000UL, (val1)); \ + ia64_native_set_rr(0x4000000000000000UL, (val2)); \ + ia64_native_set_rr(0x6000000000000000UL, (val3)); \ + ia64_native_set_rr(0x8000000000000000UL, (val4)); \ } while (0) /* @@ -194,4 +194,48 @@ extern long ia64_cmpxchg_called_with_bad_pointer (void); #endif /* !CONFIG_IA64_DEBUG_CMPXCHG */ #endif + +#ifdef __KERNEL__ +#include +#endif + +#ifndef __ASSEMBLY__ +#if defined(CONFIG_PARAVIRT) && defined(__KERNEL__) +#define IA64_INTRINSIC_API(name) pv_cpu_ops.name +#define IA64_INTRINSIC_MACRO(name) paravirt_ ## name +#else +#define IA64_INTRINSIC_API(name) ia64_native_ ## name +#define IA64_INTRINSIC_MACRO(name) ia64_native_ ## name +#endif + +/************************************************/ +/* Instructions paravirtualized for correctness */ +/************************************************/ +/* fc, thash, get_cpuid, get_pmd, get_eflags, set_eflags */ +/* Note that "ttag" and "cover" are also privilege-sensitive; "ttag" + * is not currently used (though it may be in a long-format VHPT system!) + */ +#define ia64_fc IA64_INTRINSIC_API(fc) +#define ia64_thash IA64_INTRINSIC_API(thash) +#define ia64_get_cpuid IA64_INTRINSIC_API(get_cpuid) +#define ia64_get_pmd IA64_INTRINSIC_API(get_pmd) + + +/************************************************/ +/* Instructions paravirtualized for performance */ +/************************************************/ +#define ia64_ssm IA64_INTRINSIC_MACRO(ssm) +#define ia64_rsm IA64_INTRINSIC_MACRO(rsm) +#define ia64_getreg IA64_INTRINSIC_API(getreg) +#define ia64_setreg IA64_INTRINSIC_API(setreg) +#define ia64_set_rr IA64_INTRINSIC_API(set_rr) +#define ia64_get_rr IA64_INTRINSIC_API(get_rr) +#define ia64_ptcga IA64_INTRINSIC_API(ptcga) +#define ia64_get_psr_i IA64_INTRINSIC_API(get_psr_i) +#define ia64_intrin_local_irq_restore \ + IA64_INTRINSIC_API(intrin_local_irq_restore) +#define ia64_set_rr0_to_rr4 IA64_INTRINSIC_API(set_rr0_to_rr4) + +#endif /* !__ASSEMBLY__ */ + #endif /* _ASM_IA64_INTRINSICS_H */ diff --git a/include/asm-ia64/paravirt_privop.h b/include/asm-ia64/paravirt_privop.h new file mode 100644 index 000000000000..7b133ae86df0 --- /dev/null +++ b/include/asm-ia64/paravirt_privop.h @@ -0,0 +1,91 @@ +/****************************************************************************** + * include/asm-ia64/paravirt_privops.h + * + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef _ASM_IA64_PARAVIRT_PRIVOP_H +#define _ASM_IA64_PARAVIRT_PRIVOP_H + +#ifdef CONFIG_PARAVIRT + +#ifndef __ASSEMBLY__ + +#include +#include /* for IA64_PSR_I */ + +/****************************************************************************** + * replacement of intrinsics operations. + */ + +struct pv_cpu_ops { + void (*fc)(unsigned long addr); + unsigned long (*thash)(unsigned long addr); + unsigned long (*get_cpuid)(int index); + unsigned long (*get_pmd)(int index); + unsigned long (*getreg)(int reg); + void (*setreg)(int reg, unsigned long val); + void (*ptcga)(unsigned long addr, unsigned long size); + unsigned long (*get_rr)(unsigned long index); + void (*set_rr)(unsigned long index, unsigned long val); + void (*set_rr0_to_rr4)(unsigned long val0, unsigned long val1, + unsigned long val2, unsigned long val3, + unsigned long val4); + void (*ssm_i)(void); + void (*rsm_i)(void); + unsigned long (*get_psr_i)(void); + void (*intrin_local_irq_restore)(unsigned long flags); +}; + +extern struct pv_cpu_ops pv_cpu_ops; + +extern void ia64_native_setreg_func(int regnum, unsigned long val); +extern unsigned long ia64_native_getreg_func(int regnum); + +/************************************************/ +/* Instructions paravirtualized for performance */ +/************************************************/ + +/* mask for ia64_native_ssm/rsm() must be constant.("i" constraing). + * static inline function doesn't satisfy it. */ +#define paravirt_ssm(mask) \ + do { \ + if ((mask) == IA64_PSR_I) \ + pv_cpu_ops.ssm_i(); \ + else \ + ia64_native_ssm(mask); \ + } while (0) + +#define paravirt_rsm(mask) \ + do { \ + if ((mask) == IA64_PSR_I) \ + pv_cpu_ops.rsm_i(); \ + else \ + ia64_native_rsm(mask); \ + } while (0) + +#endif /* __ASSEMBLY__ */ + +#else + +/* fallback for native case */ + +#endif /* CONFIG_PARAVIRT */ + +#endif /* _ASM_IA64_PARAVIRT_PRIVOP_H */ -- cgit v1.2.3 From e92e8c68a61ae7d845c1be0a58a081e7756b0735 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:36 +0900 Subject: [IA64] pvops: define paravirtualized instructions for native. pv_cpu_asm_ops: define paravirtualized introduce for native execution environment. Cc: Keith Owens Signed-off-by: Yaozu (Eddie) Dong Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- include/asm-ia64/native/inst.h | 165 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 include/asm-ia64/native/inst.h (limited to 'include') diff --git a/include/asm-ia64/native/inst.h b/include/asm-ia64/native/inst.h new file mode 100644 index 000000000000..2a50b70b969f --- /dev/null +++ b/include/asm-ia64/native/inst.h @@ -0,0 +1,165 @@ +/****************************************************************************** + * include/asm-ia64/native/inst.h + * + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifdef CONFIG_PARAVIRT_GUEST_ASM_CLOBBER_CHECK +# define PARAVIRT_POISON 0xdeadbeefbaadf00d +# define CLOBBER(clob) \ + ;; \ + movl clob = PARAVIRT_POISON; \ + ;; +#else +# define CLOBBER(clob) /* nothing */ +#endif + +#define MOV_FROM_IFA(reg) \ + mov reg = cr.ifa + +#define MOV_FROM_ITIR(reg) \ + mov reg = cr.itir + +#define MOV_FROM_ISR(reg) \ + mov reg = cr.isr + +#define MOV_FROM_IHA(reg) \ + mov reg = cr.iha + +#define MOV_FROM_IPSR(pred, reg) \ +(pred) mov reg = cr.ipsr + +#define MOV_FROM_IIM(reg) \ + mov reg = cr.iim + +#define MOV_FROM_IIP(reg) \ + mov reg = cr.iip + +#define MOV_FROM_IVR(reg, clob) \ + mov reg = cr.ivr \ + CLOBBER(clob) + +#define MOV_FROM_PSR(pred, reg, clob) \ +(pred) mov reg = psr \ + CLOBBER(clob) + +#define MOV_TO_IFA(reg, clob) \ + mov cr.ifa = reg \ + CLOBBER(clob) + +#define MOV_TO_ITIR(pred, reg, clob) \ +(pred) mov cr.itir = reg \ + CLOBBER(clob) + +#define MOV_TO_IHA(pred, reg, clob) \ +(pred) mov cr.iha = reg \ + CLOBBER(clob) + +#define MOV_TO_IPSR(pred, reg, clob) \ +(pred) mov cr.ipsr = reg \ + CLOBBER(clob) + +#define MOV_TO_IFS(pred, reg, clob) \ +(pred) mov cr.ifs = reg \ + CLOBBER(clob) + +#define MOV_TO_IIP(reg, clob) \ + mov cr.iip = reg \ + CLOBBER(clob) + +#define MOV_TO_KR(kr, reg, clob0, clob1) \ + mov IA64_KR(kr) = reg \ + CLOBBER(clob0) \ + CLOBBER(clob1) + +#define ITC_I(pred, reg, clob) \ +(pred) itc.i reg \ + CLOBBER(clob) + +#define ITC_D(pred, reg, clob) \ +(pred) itc.d reg \ + CLOBBER(clob) + +#define ITC_I_AND_D(pred_i, pred_d, reg, clob) \ +(pred_i) itc.i reg; \ +(pred_d) itc.d reg \ + CLOBBER(clob) + +#define THASH(pred, reg0, reg1, clob) \ +(pred) thash reg0 = reg1 \ + CLOBBER(clob) + +#define SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(clob0, clob1) \ + ssm psr.ic | PSR_DEFAULT_BITS \ + CLOBBER(clob0) \ + CLOBBER(clob1) \ + ;; \ + srlz.i /* guarantee that interruption collectin is on */ \ + ;; + +#define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1) \ + ssm psr.ic \ + CLOBBER(clob0) \ + CLOBBER(clob1) \ + ;; \ + srlz.d + +#define RSM_PSR_IC(clob) \ + rsm psr.ic \ + CLOBBER(clob) + +#define SSM_PSR_I(pred, pred_clob, clob) \ +(pred) ssm psr.i \ + CLOBBER(clob) + +#define RSM_PSR_I(pred, clob0, clob1) \ +(pred) rsm psr.i \ + CLOBBER(clob0) \ + CLOBBER(clob1) + +#define RSM_PSR_I_IC(clob0, clob1, clob2) \ + rsm psr.i | psr.ic \ + CLOBBER(clob0) \ + CLOBBER(clob1) \ + CLOBBER(clob2) + +#define RSM_PSR_DT \ + rsm psr.dt + +#define SSM_PSR_DT_AND_SRLZ_I \ + ssm psr.dt \ + ;; \ + srlz.i + +#define BSW_0(clob0, clob1, clob2) \ + bsw.0 \ + CLOBBER(clob0) \ + CLOBBER(clob1) \ + CLOBBER(clob2) + +#define BSW_1(clob0, clob1) \ + bsw.1 \ + CLOBBER(clob0) \ + CLOBBER(clob1) + +#define COVER \ + cover + +#define RFI \ + rfi -- cgit v1.2.3 From 02e32e36f42f8ea7ee6060d02f2d69ad5bad6d50 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:37 +0900 Subject: [IA64] pvops: paravirtualize minstate.h. paravirtualize minstate.h which are hand written assembly code. They include sensitive or performance critical privileged instructions. So that they are appropriate for paravirtualization. Cc: Keith Owens Cc: Akio Takebe Signed-off-by: Yaozu (Eddie) Dong Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/minstate.h | 13 +++++++------ arch/ia64/kernel/paravirt_inst.h | 29 +++++++++++++++++++++++++++++ include/asm-ia64/native/inst.h | 2 ++ 3 files changed, 38 insertions(+), 6 deletions(-) create mode 100644 arch/ia64/kernel/paravirt_inst.h (limited to 'include') diff --git a/arch/ia64/kernel/minstate.h b/arch/ia64/kernel/minstate.h index 74b6d670aaef..292e214a3b84 100644 --- a/arch/ia64/kernel/minstate.h +++ b/arch/ia64/kernel/minstate.h @@ -2,6 +2,7 @@ #include #include "entry.h" +#include "paravirt_inst.h" #ifdef CONFIG_VIRT_CPU_ACCOUNTING /* read ar.itc in advance, and use it before leaving bank 0 */ @@ -43,16 +44,16 @@ * Note that psr.ic is NOT turned on by this macro. This is so that * we can pass interruption state as arguments to a handler. */ -#define DO_SAVE_MIN(COVER,SAVE_IFS,EXTRA,WORKAROUND) \ +#define IA64_NATIVE_DO_SAVE_MIN(__COVER,SAVE_IFS,EXTRA,WORKAROUND) \ mov r16=IA64_KR(CURRENT); /* M */ \ mov r27=ar.rsc; /* M */ \ mov r20=r1; /* A */ \ mov r25=ar.unat; /* M */ \ - mov r29=cr.ipsr; /* M */ \ + MOV_FROM_IPSR(p0,r29); /* M */ \ mov r26=ar.pfs; /* I */ \ - mov r28=cr.iip; /* M */ \ + MOV_FROM_IIP(r28); /* M */ \ mov r21=ar.fpsr; /* M */ \ - COVER; /* B;; (or nothing) */ \ + __COVER; /* B;; (or nothing) */ \ ;; \ adds r16=IA64_TASK_THREAD_ON_USTACK_OFFSET,r16; \ ;; \ @@ -244,6 +245,6 @@ 1: \ .pred.rel "mutex", pKStk, pUStk -#define SAVE_MIN_WITH_COVER DO_SAVE_MIN(cover, mov r30=cr.ifs, , RSE_WORKAROUND) -#define SAVE_MIN_WITH_COVER_R19 DO_SAVE_MIN(cover, mov r30=cr.ifs, mov r15=r19, RSE_WORKAROUND) +#define SAVE_MIN_WITH_COVER DO_SAVE_MIN(COVER, mov r30=cr.ifs, , RSE_WORKAROUND) +#define SAVE_MIN_WITH_COVER_R19 DO_SAVE_MIN(COVER, mov r30=cr.ifs, mov r15=r19, RSE_WORKAROUND) #define SAVE_MIN DO_SAVE_MIN( , mov r30=r0, , ) diff --git a/arch/ia64/kernel/paravirt_inst.h b/arch/ia64/kernel/paravirt_inst.h new file mode 100644 index 000000000000..5cad6fb2ed19 --- /dev/null +++ b/arch/ia64/kernel/paravirt_inst.h @@ -0,0 +1,29 @@ +/****************************************************************************** + * linux/arch/ia64/xen/paravirt_inst.h + * + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifdef __IA64_ASM_PARAVIRTUALIZED_XEN +#include +#include +#else +#include +#endif + diff --git a/include/asm-ia64/native/inst.h b/include/asm-ia64/native/inst.h index 2a50b70b969f..f1072ace0cfa 100644 --- a/include/asm-ia64/native/inst.h +++ b/include/asm-ia64/native/inst.h @@ -20,6 +20,8 @@ * */ +#define DO_SAVE_MIN IA64_NATIVE_DO_SAVE_MIN + #ifdef CONFIG_PARAVIRT_GUEST_ASM_CLOBBER_CHECK # define PARAVIRT_POISON 0xdeadbeefbaadf00d # define CLOBBER(clob) \ -- cgit v1.2.3 From 4df8d22bbbb16ccfa4e10cc068135183c9e5e006 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Tue, 27 May 2008 15:08:01 -0700 Subject: [IA64] pvops: paravirtualize entry.S paravirtualize ia64_swtich_to, ia64_leave_syscall and ia64_leave_kernel. They include sensitive or performance critical privileged instructions so that they need paravirtualization. To paravirtualize them by single source and multi compile they are converted into indirect jump. And define each pv instances. Cc: Keith Owens Cc: "Dong, Eddie" Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/Makefile | 2 +- arch/ia64/kernel/entry.S | 115 +++++++++++++++++++++++-------------- arch/ia64/kernel/paravirt.c | 19 ++++++ arch/ia64/kernel/paravirtentry.S | 60 +++++++++++++++++++ include/asm-ia64/native/inst.h | 8 +++ include/asm-ia64/paravirt_privop.h | 23 ++++++++ 6 files changed, 183 insertions(+), 44 deletions(-) create mode 100644 arch/ia64/kernel/paravirtentry.S (limited to 'include') diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 8b2524293eb4..cea91f17d44b 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -36,7 +36,7 @@ obj-$(CONFIG_PCI_MSI) += msi_ia64.o mca_recovery-y += mca_drv.o mca_drv_asm.o obj-$(CONFIG_IA64_MC_ERR_INJECT)+= err_inject.o -obj-$(CONFIG_PARAVIRT) += paravirt.o +obj-$(CONFIG_PARAVIRT) += paravirt.o paravirtentry.o obj-$(CONFIG_IA64_ESI) += esi.o ifneq ($(CONFIG_IA64_ESI),) diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index ca2bb95726de..56ab156c48ae 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -22,6 +22,11 @@ * Patrick O'Rourke * 11/07/2000 */ +/* + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * pv_ops. + */ /* * Global (preserved) predicate usage on syscall entry/exit path: * @@ -45,6 +50,7 @@ #include "minstate.h" +#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE /* * execve() is special because in case of success, we need to * setup a null register window frame. @@ -173,6 +179,7 @@ GLOBAL_ENTRY(sys_clone) mov rp=loc0 br.ret.sptk.many rp END(sys_clone) +#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ /* * prev_task <- ia64_switch_to(struct task_struct *next) @@ -180,7 +187,7 @@ END(sys_clone) * called. The code starting at .map relies on this. The rest of the code * doesn't care about the interrupt masking status. */ -GLOBAL_ENTRY(ia64_switch_to) +GLOBAL_ENTRY(__paravirt_switch_to) .prologue alloc r16=ar.pfs,1,0,0,0 DO_SAVE_SWITCH_STACK @@ -204,7 +211,7 @@ GLOBAL_ENTRY(ia64_switch_to) ;; .done: ld8 sp=[r21] // load kernel stack pointer of new task - mov IA64_KR(CURRENT)=in0 // update "current" application register + MOV_TO_KR(CURRENT, in0, r8, r9) // update "current" application register mov r8=r13 // return pointer to previously running task mov r13=in0 // set "current" pointer ;; @@ -216,26 +223,25 @@ GLOBAL_ENTRY(ia64_switch_to) br.ret.sptk.many rp // boogie on out in new context .map: - rsm psr.ic // interrupts (psr.i) are already disabled here + RSM_PSR_IC(r25) // interrupts (psr.i) are already disabled here movl r25=PAGE_KERNEL ;; srlz.d or r23=r25,r20 // construct PA | page properties mov r25=IA64_GRANULE_SHIFT<<2 ;; - mov cr.itir=r25 - mov cr.ifa=in0 // VA of next task... + MOV_TO_ITIR(p0, r25, r8) + MOV_TO_IFA(in0, r8) // VA of next task... ;; mov r25=IA64_TR_CURRENT_STACK - mov IA64_KR(CURRENT_STACK)=r26 // remember last page we mapped... + MOV_TO_KR(CURRENT_STACK, r26, r8, r9) // remember last page we mapped... ;; itr.d dtr[r25]=r23 // wire in new mapping... - ssm psr.ic // reenable the psr.ic bit - ;; - srlz.d + SSM_PSR_IC_AND_SRLZ_D(r8, r9) // reenable the psr.ic bit br.cond.sptk .done -END(ia64_switch_to) +END(__paravirt_switch_to) +#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE /* * Note that interrupts are enabled during save_switch_stack and load_switch_stack. This * means that we may get an interrupt with "sp" pointing to the new kernel stack while @@ -375,7 +381,7 @@ END(save_switch_stack) * - b7 holds address to return to * - must not touch r8-r11 */ -ENTRY(load_switch_stack) +GLOBAL_ENTRY(load_switch_stack) .prologue .altrp b7 @@ -571,7 +577,7 @@ GLOBAL_ENTRY(ia64_trace_syscall) .ret3: (pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk (pUStk) rsm psr.i // disable interrupts - br.cond.sptk .work_pending_syscall_end + br.cond.sptk ia64_work_pending_syscall_end strace_error: ld8 r3=[r2] // load pt_regs.r8 @@ -636,8 +642,17 @@ GLOBAL_ENTRY(ia64_ret_from_syscall) adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8 mov r10=r0 // clear error indication in r10 (p7) br.cond.spnt handle_syscall_error // handle potential syscall failure +#ifdef CONFIG_PARAVIRT + ;; + br.cond.sptk.few ia64_leave_syscall + ;; +#endif /* CONFIG_PARAVIRT */ END(ia64_ret_from_syscall) +#ifndef CONFIG_PARAVIRT // fall through +#endif +#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ + /* * ia64_leave_syscall(): Same as ia64_leave_kernel, except that it doesn't * need to switch to bank 0 and doesn't restore the scratch registers. @@ -682,7 +697,7 @@ END(ia64_ret_from_syscall) * ar.csd: cleared * ar.ssd: cleared */ -ENTRY(ia64_leave_syscall) +GLOBAL_ENTRY(__paravirt_leave_syscall) PT_REGS_UNWIND_INFO(0) /* * work.need_resched etc. mustn't get changed by this CPU before it returns to @@ -692,11 +707,11 @@ ENTRY(ia64_leave_syscall) * extra work. We always check for extra work when returning to user-level. * With CONFIG_PREEMPT, we also check for extra work when the preempt_count * is 0. After extra work processing has been completed, execution - * resumes at .work_processed_syscall with p6 set to 1 if the extra-work-check + * resumes at ia64_work_processed_syscall with p6 set to 1 if the extra-work-check * needs to be redone. */ #ifdef CONFIG_PREEMPT - rsm psr.i // disable interrupts + RSM_PSR_I(p0, r2, r18) // disable interrupts cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall (pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13 ;; @@ -706,11 +721,12 @@ ENTRY(ia64_leave_syscall) ;; cmp.eq p6,p0=r21,r0 // p6 <- pUStk || (preempt_count == 0) #else /* !CONFIG_PREEMPT */ -(pUStk) rsm psr.i + RSM_PSR_I(pUStk, r2, r18) cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall (pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk #endif -.work_processed_syscall: +.global __paravirt_work_processed_syscall; +__paravirt_work_processed_syscall: #ifdef CONFIG_VIRT_CPU_ACCOUNTING adds r2=PT(LOADRS)+16,r12 (pUStk) mov.m r22=ar.itc // fetch time at leave @@ -744,7 +760,7 @@ ENTRY(ia64_leave_syscall) (pNonSys) break 0 // bug check: we shouldn't be here if pNonSys is TRUE! ;; invala // M0|1 invalidate ALAT - rsm psr.i | psr.ic // M2 turn off interrupts and interruption collection + RSM_PSR_I_IC(r28, r29, r30) // M2 turn off interrupts and interruption collection cmp.eq p9,p0=r0,r0 // A set p9 to indicate that we should restore cr.ifs ld8 r29=[r2],16 // M0|1 load cr.ipsr @@ -765,7 +781,7 @@ ENTRY(ia64_leave_syscall) ;; #endif ld8 r26=[r2],PT(B0)-PT(AR_PFS) // M0|1 load ar.pfs -(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled + MOV_FROM_PSR(pKStk, r22, r21) // M2 read PSR now that interrupts are disabled nop 0 ;; ld8 r21=[r2],PT(AR_RNAT)-PT(B0) // M0|1 load b0 @@ -798,7 +814,7 @@ ENTRY(ia64_leave_syscall) srlz.d // M0 ensure interruption collection is off (for cover) shr.u r18=r19,16 // I0|1 get byte size of existing "dirty" partition - cover // B add current frame into dirty partition & set cr.ifs + COVER // B add current frame into dirty partition & set cr.ifs ;; #ifdef CONFIG_VIRT_CPU_ACCOUNTING mov r19=ar.bsp // M2 get new backing store pointer @@ -823,8 +839,9 @@ ENTRY(ia64_leave_syscall) mov.m ar.ssd=r0 // M2 clear ar.ssd mov f11=f0 // F clear f11 br.cond.sptk.many rbs_switch // B -END(ia64_leave_syscall) +END(__paravirt_leave_syscall) +#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE #ifdef CONFIG_IA32_SUPPORT GLOBAL_ENTRY(ia64_ret_from_ia32_execve) PT_REGS_UNWIND_INFO(0) @@ -835,10 +852,20 @@ GLOBAL_ENTRY(ia64_ret_from_ia32_execve) st8.spill [r2]=r8 // store return value in slot for r8 and set unat bit .mem.offset 8,0 st8.spill [r3]=r0 // clear error indication in slot for r10 and set unat bit +#ifdef CONFIG_PARAVIRT + ;; + // don't fall through, ia64_leave_kernel may be #define'd + br.cond.sptk.few ia64_leave_kernel + ;; +#endif /* CONFIG_PARAVIRT */ END(ia64_ret_from_ia32_execve) +#ifndef CONFIG_PARAVIRT // fall through +#endif #endif /* CONFIG_IA32_SUPPORT */ -GLOBAL_ENTRY(ia64_leave_kernel) +#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ + +GLOBAL_ENTRY(__paravirt_leave_kernel) PT_REGS_UNWIND_INFO(0) /* * work.need_resched etc. mustn't get changed by this CPU before it returns to @@ -852,7 +879,7 @@ GLOBAL_ENTRY(ia64_leave_kernel) * needs to be redone. */ #ifdef CONFIG_PREEMPT - rsm psr.i // disable interrupts + RSM_PSR_I(p0, r17, r31) // disable interrupts cmp.eq p0,pLvSys=r0,r0 // pLvSys=0: leave from kernel (pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13 ;; @@ -862,7 +889,7 @@ GLOBAL_ENTRY(ia64_leave_kernel) ;; cmp.eq p6,p0=r21,r0 // p6 <- pUStk || (preempt_count == 0) #else -(pUStk) rsm psr.i + RSM_PSR_I(pUStk, r17, r31) cmp.eq p0,pLvSys=r0,r0 // pLvSys=0: leave from kernel (pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk #endif @@ -910,7 +937,7 @@ GLOBAL_ENTRY(ia64_leave_kernel) mov ar.csd=r30 mov ar.ssd=r31 ;; - rsm psr.i | psr.ic // initiate turning off of interrupt and interruption collection + RSM_PSR_I_IC(r23, r22, r25) // initiate turning off of interrupt and interruption collection invala // invalidate ALAT ;; ld8.fill r22=[r2],24 @@ -942,7 +969,7 @@ GLOBAL_ENTRY(ia64_leave_kernel) mov ar.ccv=r15 ;; ldf.fill f11=[r2] - bsw.0 // switch back to bank 0 (no stop bit required beforehand...) + BSW_0(r2, r3, r15) // switch back to bank 0 (no stop bit required beforehand...) ;; (pUStk) mov r18=IA64_KR(CURRENT)// M2 (12 cycle read latency) adds r16=PT(CR_IPSR)+16,r12 @@ -950,12 +977,12 @@ GLOBAL_ENTRY(ia64_leave_kernel) #ifdef CONFIG_VIRT_CPU_ACCOUNTING .pred.rel.mutex pUStk,pKStk -(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled + MOV_FROM_PSR(pKStk, r22, r29) // M2 read PSR now that interrupts are disabled (pUStk) mov.m r22=ar.itc // M fetch time at leave nop.i 0 ;; #else -(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled + MOV_FROM_PSR(pKStk, r22, r29) // M2 read PSR now that interrupts are disabled nop.i 0 nop.i 0 ;; @@ -1027,7 +1054,7 @@ GLOBAL_ENTRY(ia64_leave_kernel) * NOTE: alloc, loadrs, and cover can't be predicated. */ (pNonSys) br.cond.dpnt dont_preserve_current_frame - cover // add current frame into dirty partition and set cr.ifs + COVER // add current frame into dirty partition and set cr.ifs ;; mov r19=ar.bsp // get new backing store pointer rbs_switch: @@ -1130,16 +1157,16 @@ skip_rbs_switch: (pKStk) dep r29=r22,r29,21,1 // I0 update ipsr.pp with psr.pp (pLvSys)mov r16=r0 // A clear r16 for leave_syscall, no-op otherwise ;; - mov cr.ipsr=r29 // M2 + MOV_TO_IPSR(p0, r29, r25) // M2 mov ar.pfs=r26 // I0 (pLvSys)mov r17=r0 // A clear r17 for leave_syscall, no-op otherwise -(p9) mov cr.ifs=r30 // M2 + MOV_TO_IFS(p9, r30, r25)// M2 mov b0=r21 // I0 (pLvSys)mov r18=r0 // A clear r18 for leave_syscall, no-op otherwise mov ar.fpsr=r20 // M2 - mov cr.iip=r28 // M2 + MOV_TO_IIP(r28, r25) // M2 nop 0 ;; (pUStk) mov ar.rnat=r24 // M2 must happen with RSE in lazy mode @@ -1148,7 +1175,7 @@ skip_rbs_switch: mov ar.rsc=r27 // M2 mov pr=r31,-1 // I0 - rfi // B + RFI // B /* * On entry: @@ -1174,35 +1201,36 @@ skip_rbs_switch: ;; (pKStk) st4 [r20]=r21 #endif - ssm psr.i // enable interrupts + SSM_PSR_I(p0, p6, r2) // enable interrupts br.call.spnt.many rp=schedule .ret9: cmp.eq p6,p0=r0,r0 // p6 <- 1 (re-check) - rsm psr.i // disable interrupts + RSM_PSR_I(p0, r2, r20) // disable interrupts ;; #ifdef CONFIG_PREEMPT (pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13 ;; (pKStk) st4 [r20]=r0 // preempt_count() <- 0 #endif -(pLvSys)br.cond.sptk.few .work_pending_syscall_end +(pLvSys)br.cond.sptk.few __paravirt_pending_syscall_end br.cond.sptk.many .work_processed_kernel .notify: (pUStk) br.call.spnt.many rp=notify_resume_user .ret10: cmp.ne p6,p0=r0,r0 // p6 <- 0 (don't re-check) -(pLvSys)br.cond.sptk.few .work_pending_syscall_end +(pLvSys)br.cond.sptk.few __paravirt_pending_syscall_end br.cond.sptk.many .work_processed_kernel -.work_pending_syscall_end: +.global __paravirt_pending_syscall_end; +__paravirt_pending_syscall_end: adds r2=PT(R8)+16,r12 adds r3=PT(R10)+16,r12 ;; ld8 r8=[r2] ld8 r10=[r3] - br.cond.sptk.many .work_processed_syscall - -END(ia64_leave_kernel) + br.cond.sptk.many __paravirt_work_processed_syscall_target +END(__paravirt_leave_kernel) +#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE ENTRY(handle_syscall_error) /* * Some system calls (e.g., ptrace, mmap) can return arbitrary values which could @@ -1244,7 +1272,7 @@ END(ia64_invoke_schedule_tail) * We declare 8 input registers so the system call args get preserved, * in case we need to restart a system call. */ -ENTRY(notify_resume_user) +GLOBAL_ENTRY(notify_resume_user) .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8) alloc loc1=ar.pfs,8,2,3,0 // preserve all eight input regs in case of syscall restart! mov r9=ar.unat @@ -1306,7 +1334,7 @@ ENTRY(sys_rt_sigreturn) adds sp=16,sp ;; ld8 r9=[sp] // load new ar.unat - mov.sptk b7=r8,ia64_leave_kernel + mov.sptk b7=r8,ia64_native_leave_kernel ;; mov ar.unat=r9 br.many b7 @@ -1665,3 +1693,4 @@ sys_call_table: data8 sys_timerfd_gettime .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls +#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index e5482bb6841e..7126ea8f7ecc 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c @@ -286,3 +286,22 @@ struct pv_cpu_ops pv_cpu_ops = { = ia64_native_intrin_local_irq_restore_func, }; EXPORT_SYMBOL(pv_cpu_ops); + +/****************************************************************************** + * replacement of hand written assembly codes. + */ + +void +paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch) +{ + extern unsigned long paravirt_switch_to_targ; + extern unsigned long paravirt_leave_syscall_targ; + extern unsigned long paravirt_work_processed_syscall_targ; + extern unsigned long paravirt_leave_kernel_targ; + + paravirt_switch_to_targ = cpu_asm_switch->switch_to; + paravirt_leave_syscall_targ = cpu_asm_switch->leave_syscall; + paravirt_work_processed_syscall_targ = + cpu_asm_switch->work_processed_syscall; + paravirt_leave_kernel_targ = cpu_asm_switch->leave_kernel; +} diff --git a/arch/ia64/kernel/paravirtentry.S b/arch/ia64/kernel/paravirtentry.S new file mode 100644 index 000000000000..2f42fcb9776a --- /dev/null +++ b/arch/ia64/kernel/paravirtentry.S @@ -0,0 +1,60 @@ +/****************************************************************************** + * linux/arch/ia64/xen/paravirtentry.S + * + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include "entry.h" + +#define DATA8(sym, init_value) \ + .pushsection .data.read_mostly ; \ + .align 8 ; \ + .global sym ; \ + sym: ; \ + data8 init_value ; \ + .popsection + +#define BRANCH(targ, reg, breg) \ + movl reg=targ ; \ + ;; \ + ld8 reg=[reg] ; \ + ;; \ + mov breg=reg ; \ + br.cond.sptk.many breg + +#define BRANCH_PROC(sym, reg, breg) \ + DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ + GLOBAL_ENTRY(paravirt_ ## sym) ; \ + BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \ + END(paravirt_ ## sym) + +#define BRANCH_PROC_UNWINFO(sym, reg, breg) \ + DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \ + GLOBAL_ENTRY(paravirt_ ## sym) ; \ + PT_REGS_UNWIND_INFO(0) ; \ + BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \ + END(paravirt_ ## sym) + + +BRANCH_PROC(switch_to, r22, b7) +BRANCH_PROC_UNWINFO(leave_syscall, r22, b7) +BRANCH_PROC(work_processed_syscall, r2, b7) +BRANCH_PROC_UNWINFO(leave_kernel, r22, b7) diff --git a/include/asm-ia64/native/inst.h b/include/asm-ia64/native/inst.h index f1072ace0cfa..c953a2ca4fce 100644 --- a/include/asm-ia64/native/inst.h +++ b/include/asm-ia64/native/inst.h @@ -22,6 +22,14 @@ #define DO_SAVE_MIN IA64_NATIVE_DO_SAVE_MIN +#define __paravirt_switch_to ia64_native_switch_to +#define __paravirt_leave_syscall ia64_native_leave_syscall +#define __paravirt_work_processed_syscall ia64_native_work_processed_syscall +#define __paravirt_leave_kernel ia64_native_leave_kernel +#define __paravirt_pending_syscall_end ia64_work_pending_syscall_end +#define __paravirt_work_processed_syscall_target \ + ia64_work_processed_syscall + #ifdef CONFIG_PARAVIRT_GUEST_ASM_CLOBBER_CHECK # define PARAVIRT_POISON 0xdeadbeefbaadf00d # define CLOBBER(clob) \ diff --git a/include/asm-ia64/paravirt_privop.h b/include/asm-ia64/paravirt_privop.h index 7b133ae86df0..52482e6940ac 100644 --- a/include/asm-ia64/paravirt_privop.h +++ b/include/asm-ia64/paravirt_privop.h @@ -80,12 +80,35 @@ extern unsigned long ia64_native_getreg_func(int regnum); ia64_native_rsm(mask); \ } while (0) +/****************************************************************************** + * replacement of hand written assembly codes. + */ +struct pv_cpu_asm_switch { + unsigned long switch_to; + unsigned long leave_syscall; + unsigned long work_processed_syscall; + unsigned long leave_kernel; +}; +void paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch); + #endif /* __ASSEMBLY__ */ +#define IA64_PARAVIRT_ASM_FUNC(name) paravirt_ ## name + #else /* fallback for native case */ +#define IA64_PARAVIRT_ASM_FUNC(name) ia64_native_ ## name #endif /* CONFIG_PARAVIRT */ +/* these routines utilize privilege-sensitive or performance-sensitive + * privileged instructions so the code must be replaced with + * paravirtualized versions */ +#define ia64_switch_to IA64_PARAVIRT_ASM_FUNC(switch_to) +#define ia64_leave_syscall IA64_PARAVIRT_ASM_FUNC(leave_syscall) +#define ia64_work_processed_syscall \ + IA64_PARAVIRT_ASM_FUNC(work_processed_syscall) +#define ia64_leave_kernel IA64_PARAVIRT_ASM_FUNC(leave_kernel) + #endif /* _ASM_IA64_PARAVIRT_PRIVOP_H */ -- cgit v1.2.3 From 213060a4d6991a95d0b9344406d195be3464accf Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:40 +0900 Subject: [IA64] pvops: paravirtualize NR_IRQS Make NR_IRQ overridable by each pv instances. Pv instance may need each own number of irqs so that NR_IRQS should be the maximum number of nr_irqs each pv instances need. Cc: Jes Sorensen Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/Makefile | 6 ++++++ arch/ia64/kernel/Makefile | 33 +++++++++++++++++++++++++++++++++ arch/ia64/kernel/nr-irqs.c | 24 ++++++++++++++++++++++++ include/asm-ia64/irq.h | 9 +-------- include/asm-ia64/native/irq.h | 35 +++++++++++++++++++++++++++++++++++ 5 files changed, 99 insertions(+), 8 deletions(-) create mode 100644 arch/ia64/kernel/nr-irqs.c create mode 100644 include/asm-ia64/native/irq.h (limited to 'include') diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 88f1a55c6c94..3b9c8cadfd34 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -99,3 +99,9 @@ define archhelp echo ' boot - Build vmlinux and bootloader for Ski simulator' echo '* unwcheck - Check vmlinux for invalid unwind info' endef + +archprepare: make_nr_irqs_h FORCE +PHONY += make_nr_irqs_h FORCE + +make_nr_irqs_h: FORCE + $(Q)$(MAKE) $(build)=arch/ia64/kernel include/asm-ia64/nr-irqs.h diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index cea91f17d44b..87fea11aecb7 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -73,6 +73,39 @@ $(obj)/gate-syms.o: $(obj)/gate.lds $(obj)/gate.o FORCE # Note: kbuild does not track this dependency due to usage of .incbin $(obj)/gate-data.o: $(obj)/gate.so +# Calculate NR_IRQ = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, ...) based on config +define sed-y + "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}" +endef +quiet_cmd_nr_irqs = GEN $@ +define cmd_nr_irqs + (set -e; \ + echo "#ifndef __ASM_NR_IRQS_H__"; \ + echo "#define __ASM_NR_IRQS_H__"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " *"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-y) $<; \ + echo ""; \ + echo "#endif" ) > $@ +endef + +# We use internal kbuild rules to avoid the "is up to date" message from make +arch/$(SRCARCH)/kernel/nr-irqs.s: $(srctree)/arch/$(SRCARCH)/kernel/nr-irqs.c \ + $(wildcard $(srctree)/include/asm-ia64/*/irq.h) + $(Q)mkdir -p $(dir $@) + $(call if_changed_dep,cc_s_c) + +include/asm-ia64/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s + $(Q)mkdir -p $(dir $@) + $(call cmd,nr_irqs) + +clean-files += $(objtree)/include/asm-ia64/nr-irqs.h + # # native ivt.S and entry.S # diff --git a/arch/ia64/kernel/nr-irqs.c b/arch/ia64/kernel/nr-irqs.c new file mode 100644 index 000000000000..1ae049181e83 --- /dev/null +++ b/arch/ia64/kernel/nr-irqs.c @@ -0,0 +1,24 @@ +/* + * calculate + * NR_IRQS = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, FOO_NR_IRQS...) + * depending on config. + * This must be calculated before processing asm-offset.c. + */ + +#define ASM_OFFSETS_C 1 + +#include +#include +#include + +void foo(void) +{ + union paravirt_nr_irqs_max { + char ia64_native_nr_irqs[IA64_NATIVE_NR_IRQS]; +#ifdef CONFIG_XEN + char xen_nr_irqs[XEN_NR_IRQS]; +#endif + }; + + DEFINE(NR_IRQS, sizeof (union paravirt_nr_irqs_max)); +} diff --git a/include/asm-ia64/irq.h b/include/asm-ia64/irq.h index a66d26827cbb..3627116fb0e2 100644 --- a/include/asm-ia64/irq.h +++ b/include/asm-ia64/irq.h @@ -13,14 +13,7 @@ #include #include - -#define NR_VECTORS 256 - -#if (NR_VECTORS + 32 * NR_CPUS) < 1024 -#define NR_IRQS (NR_VECTORS + 32 * NR_CPUS) -#else -#define NR_IRQS 1024 -#endif +#include static __inline__ int irq_canonicalize (int irq) diff --git a/include/asm-ia64/native/irq.h b/include/asm-ia64/native/irq.h new file mode 100644 index 000000000000..efe9ff74a3c4 --- /dev/null +++ b/include/asm-ia64/native/irq.h @@ -0,0 +1,35 @@ +/****************************************************************************** + * include/asm-ia64/native/irq.h + * + * Copyright (c) 2008 Isaku Yamahata + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * moved from linux/include/asm-ia64/irq.h. + */ + +#ifndef _ASM_IA64_NATIVE_IRQ_H +#define _ASM_IA64_NATIVE_IRQ_H + +#define NR_VECTORS 256 + +#if (NR_VECTORS + 32 * NR_CPUS) < 1024 +#define IA64_NATIVE_NR_IRQS (NR_VECTORS + 32 * NR_CPUS) +#else +#define IA64_NATIVE_NR_IRQS 1024 +#endif + +#endif /* _ASM_IA64_NATIVE_IRQ_H */ -- cgit v1.2.3 From e51835d58a5abdf82211f36f500f666ca7ef9aee Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:41 +0900 Subject: [IA64] pvops: define initialization hooks, pv_init_ops, for paravirtualized environment. define pv_init_ops hooks which represents various initialization hooks for paravirtualized environment. and add hooks. Signed-off-by: Alex Williamson Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/paravirt.c | 7 +++++ arch/ia64/kernel/setup.c | 10 +++++++ arch/ia64/kernel/smpboot.c | 2 ++ include/asm-ia64/paravirt.h | 70 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 89 insertions(+) (limited to 'include') diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index 7126ea8f7ecc..5daf659ff291 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c @@ -41,6 +41,13 @@ struct pv_info pv_info = { .name = "bare hardware" }; +/*************************************************************************** + * pv_init_ops + * initialization hooks. + */ + +struct pv_init_ops pv_init_ops; + /*************************************************************************** * pv_cpu_ops * intrinsics hooks. diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index f48a809c686d..750749551e86 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -51,6 +51,7 @@ #include #include #include +#include #include #include #include @@ -341,6 +342,8 @@ reserve_memory (void) rsvd_region[n].end = (unsigned long) ia64_imva(_end); n++; + n += paravirt_reserve_memory(&rsvd_region[n]); + #ifdef CONFIG_BLK_DEV_INITRD if (ia64_boot_param->initrd_start) { rsvd_region[n].start = (unsigned long)__va(ia64_boot_param->initrd_start); @@ -519,6 +522,8 @@ setup_arch (char **cmdline_p) { unw_init(); + paravirt_arch_setup_early(); + ia64_patch_vtop((u64) __start___vtop_patchlist, (u64) __end___vtop_patchlist); *cmdline_p = __va(ia64_boot_param->command_line); @@ -584,6 +589,9 @@ setup_arch (char **cmdline_p) acpi_boot_init(); #endif + paravirt_banner(); + paravirt_arch_setup_console(cmdline_p); + #ifdef CONFIG_VT if (!conswitchp) { # if defined(CONFIG_DUMMY_CONSOLE) @@ -603,6 +611,8 @@ setup_arch (char **cmdline_p) #endif /* enable IA-64 Machine Check Abort Handling unless disabled */ + if (paravirt_arch_setup_nomca()) + nomca = 1; if (!nomca) ia64_mca_init(); diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index d7ad42b77d41..933f38811528 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -50,6 +50,7 @@ #include #include #include +#include #include #include #include @@ -642,6 +643,7 @@ void __devinit smp_prepare_boot_cpu(void) cpu_set(smp_processor_id(), cpu_online_map); cpu_set(smp_processor_id(), cpu_callin_map); per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; + paravirt_post_smp_prepare_boot_cpu(); } #ifdef CONFIG_HOTPLUG_CPU diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h index 1032b216aea6..84d74c32eb98 100644 --- a/include/asm-ia64/paravirt.h +++ b/include/asm-ia64/paravirt.h @@ -55,11 +55,81 @@ static inline unsigned int get_kernel_rpl(void) return pv_info.kernel_rpl; } +/****************************************************************************** + * initialization hooks. + */ +struct rsvd_region; + +struct pv_init_ops { + void (*banner)(void); + + int (*reserve_memory)(struct rsvd_region *region); + + void (*arch_setup_early)(void); + void (*arch_setup_console)(char **cmdline_p); + int (*arch_setup_nomca)(void); + + void (*post_smp_prepare_boot_cpu)(void); +}; + +extern struct pv_init_ops pv_init_ops; + +static inline void paravirt_banner(void) +{ + if (pv_init_ops.banner) + pv_init_ops.banner(); +} + +static inline int paravirt_reserve_memory(struct rsvd_region *region) +{ + if (pv_init_ops.reserve_memory) + return pv_init_ops.reserve_memory(region); + return 0; +} + +static inline void paravirt_arch_setup_early(void) +{ + if (pv_init_ops.arch_setup_early) + pv_init_ops.arch_setup_early(); +} + +static inline void paravirt_arch_setup_console(char **cmdline_p) +{ + if (pv_init_ops.arch_setup_console) + pv_init_ops.arch_setup_console(cmdline_p); +} + +static inline int paravirt_arch_setup_nomca(void) +{ + if (pv_init_ops.arch_setup_nomca) + return pv_init_ops.arch_setup_nomca(); + return 0; +} + +static inline void paravirt_post_smp_prepare_boot_cpu(void) +{ + if (pv_init_ops.post_smp_prepare_boot_cpu) + pv_init_ops.post_smp_prepare_boot_cpu(); +} + #endif /* !__ASSEMBLY__ */ #else /* fallback for native case */ +#ifndef __ASSEMBLY__ + +#define paravirt_banner() do { } while (0) +#define paravirt_reserve_memory(region) 0 + +#define paravirt_arch_setup_early() do { } while (0) +#define paravirt_arch_setup_console(cmdline_p) do { } while (0) +#define paravirt_arch_setup_nomca() 0 +#define paravirt_post_smp_prepare_boot_cpu() do { } while (0) + +#endif /* __ASSEMBLY__ */ + + #endif /* CONFIG_PARAVIRT_GUEST */ #endif /* __ASM_PARAVIRT_H */ -- cgit v1.2.3 From 33b39e84209b0308b572dce017df7ee9b63f086c Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:42 +0900 Subject: [IA64] pvops: add hooks, pv_iosapic_ops, to paravirtualize iosapic. add hooks to paravirtualize iosapic which is a real hardware resource. On virtualized environment it may be replaced something virtualized friendly. Define pv_iosapic_ops and add the hooks. Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/iosapic.c | 45 +++++++++++++++++++++++++++++---------------- arch/ia64/kernel/paravirt.c | 25 +++++++++++++++++++++++++ include/asm-ia64/iosapic.h | 18 ++++++++++++++++-- include/asm-ia64/paravirt.h | 40 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 110 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index 082c31dcfd99..587196dd84fd 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -587,6 +587,15 @@ static inline int irq_is_shared (int irq) return (iosapic_intr_info[irq].count > 1); } +struct irq_chip* +ia64_native_iosapic_get_irq_chip(unsigned long trigger) +{ + if (trigger == IOSAPIC_EDGE) + return &irq_type_iosapic_edge; + else + return &irq_type_iosapic_level; +} + static int register_intr (unsigned int gsi, int irq, unsigned char delivery, unsigned long polarity, unsigned long trigger) @@ -637,13 +646,10 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery, iosapic_intr_info[irq].dmode = delivery; iosapic_intr_info[irq].trigger = trigger; - if (trigger == IOSAPIC_EDGE) - irq_type = &irq_type_iosapic_edge; - else - irq_type = &irq_type_iosapic_level; + irq_type = iosapic_get_irq_chip(trigger); idesc = irq_desc + irq; - if (idesc->chip != irq_type) { + if (irq_type != NULL && idesc->chip != irq_type) { if (idesc->chip != &no_irq_type) printk(KERN_WARNING "%s: changing vector %d from %s to %s\n", @@ -975,6 +981,22 @@ iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi, set_rte(gsi, irq, dest, 1); } +void __init +ia64_native_iosapic_pcat_compat_init(void) +{ + if (pcat_compat) { + /* + * Disable the compatibility mode interrupts (8259 style), + * needs IN/OUT support enabled. + */ + printk(KERN_INFO + "%s: Disabling PC-AT compatible 8259 interrupts\n", + __func__); + outb(0xff, 0xA1); + outb(0xff, 0x21); + } +} + void __init iosapic_system_init (int system_pcat_compat) { @@ -989,17 +1011,8 @@ iosapic_system_init (int system_pcat_compat) } pcat_compat = system_pcat_compat; - if (pcat_compat) { - /* - * Disable the compatibility mode interrupts (8259 style), - * needs IN/OUT support enabled. - */ - printk(KERN_INFO - "%s: Disabling PC-AT compatible 8259 interrupts\n", - __func__); - outb(0xff, 0xA1); - outb(0xff, 0x21); - } + if (pcat_compat) + iosapic_pcat_compat_init(); } static inline int diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index 5daf659ff291..65c211b2f985 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c @@ -312,3 +312,28 @@ paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch) cpu_asm_switch->work_processed_syscall; paravirt_leave_kernel_targ = cpu_asm_switch->leave_kernel; } + +/*************************************************************************** + * pv_iosapic_ops + * iosapic read/write hooks. + */ + +static unsigned int +ia64_native_iosapic_read(char __iomem *iosapic, unsigned int reg) +{ + return __ia64_native_iosapic_read(iosapic, reg); +} + +static void +ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) +{ + __ia64_native_iosapic_write(iosapic, reg, val); +} + +struct pv_iosapic_ops pv_iosapic_ops = { + .pcat_compat_init = ia64_native_iosapic_pcat_compat_init, + .get_irq_chip = ia64_native_iosapic_get_irq_chip, + + .__read = ia64_native_iosapic_read, + .__write = ia64_native_iosapic_write, +}; diff --git a/include/asm-ia64/iosapic.h b/include/asm-ia64/iosapic.h index a3a4288daae8..b9c102e15f22 100644 --- a/include/asm-ia64/iosapic.h +++ b/include/asm-ia64/iosapic.h @@ -55,13 +55,27 @@ #define NR_IOSAPICS 256 -static inline unsigned int __iosapic_read(char __iomem *iosapic, unsigned int reg) +#ifdef CONFIG_PARAVIRT_GUEST +#include +#else +#define iosapic_pcat_compat_init ia64_native_iosapic_pcat_compat_init +#define __iosapic_read __ia64_native_iosapic_read +#define __iosapic_write __ia64_native_iosapic_write +#define iosapic_get_irq_chip ia64_native_iosapic_get_irq_chip +#endif + +extern void __init ia64_native_iosapic_pcat_compat_init(void); +extern struct irq_chip *ia64_native_iosapic_get_irq_chip(unsigned long trigger); + +static inline unsigned int +__ia64_native_iosapic_read(char __iomem *iosapic, unsigned int reg) { writel(reg, iosapic + IOSAPIC_REG_SELECT); return readl(iosapic + IOSAPIC_WINDOW); } -static inline void __iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) +static inline void +__ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) { writel(reg, iosapic + IOSAPIC_REG_SELECT); writel(val, iosapic + IOSAPIC_WINDOW); diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h index 84d74c32eb98..3a40f624e86e 100644 --- a/include/asm-ia64/paravirt.h +++ b/include/asm-ia64/paravirt.h @@ -112,6 +112,46 @@ static inline void paravirt_post_smp_prepare_boot_cpu(void) pv_init_ops.post_smp_prepare_boot_cpu(); } +/****************************************************************************** + * replacement of iosapic operations. + */ + +struct pv_iosapic_ops { + void (*pcat_compat_init)(void); + + struct irq_chip *(*get_irq_chip)(unsigned long trigger); + + unsigned int (*__read)(char __iomem *iosapic, unsigned int reg); + void (*__write)(char __iomem *iosapic, unsigned int reg, u32 val); +}; + +extern struct pv_iosapic_ops pv_iosapic_ops; + +static inline void +iosapic_pcat_compat_init(void) +{ + if (pv_iosapic_ops.pcat_compat_init) + pv_iosapic_ops.pcat_compat_init(); +} + +static inline struct irq_chip* +iosapic_get_irq_chip(unsigned long trigger) +{ + return pv_iosapic_ops.get_irq_chip(trigger); +} + +static inline unsigned int +__iosapic_read(char __iomem *iosapic, unsigned int reg) +{ + return pv_iosapic_ops.__read(iosapic, reg); +} + +static inline void +__iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) +{ + return pv_iosapic_ops.__write(iosapic, reg, val); +} + #endif /* !__ASSEMBLY__ */ #else -- cgit v1.2.3 From 85cbc503787d577c215f9540c57294e1ec799144 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:43 +0900 Subject: [IA64] pvops: add hooks, pv_irq_ops, to paravirtualized irq related operations. introduce pv_irq_ops which adds hooks to paravirtualize irq related operations. On virtualized environment, interruption may be replaced by something virtualization friendly. So the irq related operation also may need paravirtualization. This patch adds necessary hooks to paravirtualize irq related operations. Signed-off-by: Yaozu (Eddie) Dong Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/irq_ia64.c | 18 ++++++++++++----- arch/ia64/kernel/paravirt.c | 15 ++++++++++++++ include/asm-ia64/hw_irq.h | 23 ++++++++++++++++++---- include/asm-ia64/paravirt.h | 48 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 95 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index c48171bc7969..28d3d483db92 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -196,7 +196,7 @@ static void clear_irq_vector(int irq) } int -assign_irq_vector (int irq) +ia64_native_assign_irq_vector (int irq) { unsigned long flags; int vector, cpu; @@ -222,7 +222,7 @@ assign_irq_vector (int irq) } void -free_irq_vector (int vector) +ia64_native_free_irq_vector (int vector) { if (vector < IA64_FIRST_DEVICE_VECTOR || vector > IA64_LAST_DEVICE_VECTOR) @@ -622,7 +622,7 @@ static struct irqaction tlb_irqaction = { #endif void -register_percpu_irq (ia64_vector vec, struct irqaction *action) +ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action) { irq_desc_t *desc; unsigned int irq; @@ -637,13 +637,21 @@ register_percpu_irq (ia64_vector vec, struct irqaction *action) } void __init -init_IRQ (void) +ia64_native_register_ipi(void) { - register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL); #ifdef CONFIG_SMP register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction); register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction); register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction); +#endif +} + +void __init +init_IRQ (void) +{ + ia64_register_ipi(); + register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL); +#ifdef CONFIG_SMP #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG) if (vector_domain_type != VECTOR_DOMAIN_NONE) { BUG_ON(IA64_FIRST_DEVICE_VECTOR != IA64_IRQ_MOVE_VECTOR); diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index 65c211b2f985..ba5383be03cb 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c @@ -337,3 +337,18 @@ struct pv_iosapic_ops pv_iosapic_ops = { .__read = ia64_native_iosapic_read, .__write = ia64_native_iosapic_write, }; + +/*************************************************************************** + * pv_irq_ops + * irq operations + */ + +struct pv_irq_ops pv_irq_ops = { + .register_ipi = ia64_native_register_ipi, + + .assign_irq_vector = ia64_native_assign_irq_vector, + .free_irq_vector = ia64_native_free_irq_vector, + .register_percpu_irq = ia64_native_register_percpu_irq, + + .resend_irq = ia64_native_resend_irq, +}; diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h index 76366dc9c1a0..5c99cbcb8a0d 100644 --- a/include/asm-ia64/hw_irq.h +++ b/include/asm-ia64/hw_irq.h @@ -15,7 +15,11 @@ #include #include +#ifndef CONFIG_PARAVIRT typedef u8 ia64_vector; +#else +typedef u16 ia64_vector; +#endif /* * 0 special @@ -104,13 +108,24 @@ DECLARE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq); extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt controller */ +#ifdef CONFIG_PARAVIRT_GUEST +#include +#else +#define ia64_register_ipi ia64_native_register_ipi +#define assign_irq_vector ia64_native_assign_irq_vector +#define free_irq_vector ia64_native_free_irq_vector +#define register_percpu_irq ia64_native_register_percpu_irq +#define ia64_resend_irq ia64_native_resend_irq +#endif + +extern void ia64_native_register_ipi(void); extern int bind_irq_vector(int irq, int vector, cpumask_t domain); -extern int assign_irq_vector (int irq); /* allocate a free vector */ -extern void free_irq_vector (int vector); +extern int ia64_native_assign_irq_vector (int irq); /* allocate a free vector */ +extern void ia64_native_free_irq_vector (int vector); extern int reserve_irq_vector (int vector); extern void __setup_vector_irq(int cpu); extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect); -extern void register_percpu_irq (ia64_vector vec, struct irqaction *action); +extern void ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action); extern int check_irq_used (int irq); extern void destroy_and_reserve_irq (unsigned int irq); @@ -122,7 +137,7 @@ static inline int irq_prepare_move(int irq, int cpu) { return 0; } static inline void irq_complete_move(unsigned int irq) {} #endif -static inline void ia64_resend_irq(unsigned int vector) +static inline void ia64_native_resend_irq(unsigned int vector) { platform_send_ipi(smp_processor_id(), vector, IA64_IPI_DM_INT, 0); } diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h index 3a40f624e86e..ee15646b6d66 100644 --- a/include/asm-ia64/paravirt.h +++ b/include/asm-ia64/paravirt.h @@ -152,6 +152,54 @@ __iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) return pv_iosapic_ops.__write(iosapic, reg, val); } +/****************************************************************************** + * replacement of irq operations. + */ + +struct pv_irq_ops { + void (*register_ipi)(void); + + int (*assign_irq_vector)(int irq); + void (*free_irq_vector)(int vector); + + void (*register_percpu_irq)(ia64_vector vec, + struct irqaction *action); + + void (*resend_irq)(unsigned int vector); +}; + +extern struct pv_irq_ops pv_irq_ops; + +static inline void +ia64_register_ipi(void) +{ + pv_irq_ops.register_ipi(); +} + +static inline int +assign_irq_vector(int irq) +{ + return pv_irq_ops.assign_irq_vector(irq); +} + +static inline void +free_irq_vector(int vector) +{ + return pv_irq_ops.free_irq_vector(vector); +} + +static inline void +register_percpu_irq(ia64_vector vec, struct irqaction *action) +{ + pv_irq_ops.register_percpu_irq(vec, action); +} + +static inline void +ia64_resend_irq(unsigned int vector) +{ + pv_irq_ops.resend_irq(vector); +} + #endif /* !__ASSEMBLY__ */ #else -- cgit v1.2.3 From 00d21d82b8a9e290286e09d8eedc20bfc33b0eee Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Mon, 19 May 2008 22:13:44 +0900 Subject: [IA64] pvops: add to hooks, pv_time_ops, for steal time accounting. Introduce pv_time_ops which adds hook to steal time accounting. On virtualized environment, cpus are shared by many guests and steal time is the time which is used for other guests. On virtualized environtment, streal time should be accounted. Signed-off-by: Isaku Yamahata Signed-off-by: Tony Luck --- arch/ia64/kernel/paravirt.c | 15 +++++++++++++++ arch/ia64/kernel/time.c | 23 +++++++++++++++++++++++ include/asm-ia64/paravirt.h | 32 ++++++++++++++++++++++++++++++++ 3 files changed, 70 insertions(+) (limited to 'include') diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index ba5383be03cb..afaf5b9a2cf0 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c @@ -352,3 +352,18 @@ struct pv_irq_ops pv_irq_ops = { .resend_irq = ia64_native_resend_irq, }; + +/*************************************************************************** + * pv_time_ops + * time operations + */ + +static int +ia64_native_do_steal_accounting(unsigned long *new_itm) +{ + return 0; +} + +struct pv_time_ops pv_time_ops = { + .do_steal_accounting = ia64_native_do_steal_accounting, +}; diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 8c73643f2d66..046ca89efc05 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -48,6 +49,15 @@ EXPORT_SYMBOL(last_cli_ip); #endif +#ifdef CONFIG_PARAVIRT +static void +paravirt_clocksource_resume(void) +{ + if (pv_time_ops.clocksource_resume) + pv_time_ops.clocksource_resume(); +} +#endif + static struct clocksource clocksource_itc = { .name = "itc", .rating = 350, @@ -56,6 +66,9 @@ static struct clocksource clocksource_itc = { .mult = 0, /*to be calculated*/ .shift = 16, .flags = CLOCK_SOURCE_IS_CONTINUOUS, +#ifdef CONFIG_PARAVIRT + .resume = paravirt_clocksource_resume, +#endif }; static struct clocksource *itc_clocksource; @@ -156,6 +169,9 @@ timer_interrupt (int irq, void *dev_id) profile_tick(CPU_PROFILING); + if (paravirt_do_steal_accounting(&new_itm)) + goto skip_process_time_accounting; + while (1) { update_process_times(user_mode(get_irq_regs())); @@ -185,6 +201,8 @@ timer_interrupt (int irq, void *dev_id) local_irq_disable(); } +skip_process_time_accounting: + do { /* * If we're too close to the next clock tick for @@ -334,6 +352,11 @@ ia64_init_itm (void) */ clocksource_itc.rating = 50; + paravirt_init_missing_ticks_accounting(smp_processor_id()); + + /* avoid softlock up message when cpu is unplug and plugged again. */ + touch_softlockup_watchdog(); + /* Setup the CPU local timer tick */ ia64_cpu_local_tick(); diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h index ee15646b6d66..1b4df129f579 100644 --- a/include/asm-ia64/paravirt.h +++ b/include/asm-ia64/paravirt.h @@ -200,6 +200,35 @@ ia64_resend_irq(unsigned int vector) pv_irq_ops.resend_irq(vector); } +/****************************************************************************** + * replacement of time operations. + */ + +extern struct itc_jitter_data_t itc_jitter_data; +extern volatile int time_keeper_id; + +struct pv_time_ops { + void (*init_missing_ticks_accounting)(int cpu); + int (*do_steal_accounting)(unsigned long *new_itm); + + void (*clocksource_resume)(void); +}; + +extern struct pv_time_ops pv_time_ops; + +static inline void +paravirt_init_missing_ticks_accounting(int cpu) +{ + if (pv_time_ops.init_missing_ticks_accounting) + pv_time_ops.init_missing_ticks_accounting(cpu); +} + +static inline int +paravirt_do_steal_accounting(unsigned long *new_itm) +{ + return pv_time_ops.do_steal_accounting(new_itm); +} + #endif /* !__ASSEMBLY__ */ #else @@ -215,6 +244,9 @@ ia64_resend_irq(unsigned int vector) #define paravirt_arch_setup_nomca() 0 #define paravirt_post_smp_prepare_boot_cpu() do { } while (0) +#define paravirt_init_missing_ticks_accounting(cpu) do { } while (0) +#define paravirt_do_steal_accounting(new_itm) 0 + #endif /* __ASSEMBLY__ */ -- cgit v1.2.3 From a29ccf6f823a84d89e1c7aaaf221cf7282022024 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 3 Jun 2008 14:59:40 +0100 Subject: Make console charset translation optional By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird Signed-off-by: David Woodhouse --- drivers/char/Kconfig | 8 ++++++++ drivers/char/Makefile | 4 ++-- drivers/char/vt.c | 2 +- include/linux/consolemap.h | 14 ++++++++++++++ include/linux/vt_kern.h | 19 +++++++++++++++++++ 5 files changed, 44 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 595a925c62a9..b7f7371dee73 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -36,6 +36,14 @@ config VT If unsure, say Y, or else you won't be able to do much with your new shiny Linux system :-) +config CONSOLE_TRANSLATIONS + depends on VT + default y + bool "Enable character translations in console" if EMBEDDED + ---help--- + This enables support for font mapping and Unicode translation + on virtual consoles. + config VT_CONSOLE bool "Support for console on virtual terminal" if EMBEDDED depends on VT diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 4c1c584e9eb6..6ef173cab144 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -12,8 +12,8 @@ obj-y += mem.o random.o tty_io.o n_tty.o tty_ioctl.o obj-$(CONFIG_LEGACY_PTYS) += pty.o obj-$(CONFIG_UNIX98_PTYS) += pty.o obj-y += misc.o -obj-$(CONFIG_VT) += vt_ioctl.o vc_screen.o consolemap.o \ - consolemap_deftbl.o selection.o keyboard.o +obj-$(CONFIG_VT) += vt_ioctl.o vc_screen.o selection.o keyboard.o +obj-$(CONFIG_CONSOLE_TRANSLATIONS) += consolemap.o consolemap_deftbl.o obj-$(CONFIG_HW_CONSOLE) += vt.o defkeymap.o obj-$(CONFIG_AUDIT) += tty_audit.o obj-$(CONFIG_MAGIC_SYSRQ) += sysrq.o diff --git a/drivers/char/vt.c b/drivers/char/vt.c index fa1ffbf2c621..18b7fb06dace 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -2208,7 +2208,7 @@ rescan_last_byte: c = 0xfffd; tc = c; } else { /* no utf or alternate charset mode */ - tc = vc->vc_translate[vc->vc_toggle_meta ? (c | 0x80) : c]; + tc = vc_translate(vc, c); } param.c = tc; diff --git a/include/linux/consolemap.h b/include/linux/consolemap.h index e2bf7e5db39a..c4811da1338b 100644 --- a/include/linux/consolemap.h +++ b/include/linux/consolemap.h @@ -3,6 +3,9 @@ * * Interface between console.c, selection.c and consolemap.c */ +#ifndef __LINUX_CONSOLEMAP_H__ +#define __LINUX_CONSOLEMAP_H__ + #define LAT1_MAP 0 #define GRAF_MAP 1 #define IBMPC_MAP 2 @@ -10,6 +13,7 @@ #include +#ifdef CONFIG_CONSOLE_TRANSLATIONS struct vc_data; extern u16 inverse_translate(struct vc_data *conp, int glyph, int use_unicode); @@ -18,3 +22,13 @@ extern int conv_uni_to_pc(struct vc_data *conp, long ucs); extern u32 conv_8bit_to_uni(unsigned char c); extern int conv_uni_to_8bit(u32 uni); void console_map_init(void); +#else +#define inverse_translate(conp, glyph, uni) ((uint16_t)glyph) +#define set_translate(m, vc) ((unsigned short *)NULL) +#define conv_uni_to_pc(conp, ucs) ((int) (ucs > 0xff ? -1: ucs)) +#define conv_8bit_to_uni(c) ((uint32_t)(c)) +#define conv_uni_to_8bit(c) ((int) ((c) & 0xff)) +#define console_map_init(c) do { ; } while (0) +#endif /* CONFIG_CONSOLE_TRANSLATIONS */ + +#endif /* __LINUX_CONSOLEMAP_H__ */ diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h index 9448ffbdcbf6..14c0e91be9b5 100644 --- a/include/linux/vt_kern.h +++ b/include/linux/vt_kern.h @@ -12,6 +12,7 @@ #include #include #include +#include /* * Presently, a lot of graphics programs do not restore the contents of @@ -54,6 +55,7 @@ void redraw_screen(struct vc_data *vc, int is_switch); struct tty_struct; int tioclinux(struct tty_struct *tty, unsigned long arg); +#ifdef CONFIG_CONSOLE_TRANSLATIONS /* consolemap.c */ struct unimapinit; @@ -71,6 +73,23 @@ void con_free_unimap(struct vc_data *vc); void con_protect_unimap(struct vc_data *vc, int rdonly); int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc); +#define vc_translate(vc, c) ((vc)->vc_translate[(c) | \ + (vc)->vc_toggle_meta ? 0x80 : 0]) +#else +#define con_set_trans_old(arg) (0) +#define con_get_trans_old(arg) (-EINVAL) +#define con_set_trans_new(arg) (0) +#define con_get_trans_new(arg) (-EINVAL) +#define con_clear_unimap(vc, ui) (0) +#define con_set_unimap(vc, ct, list) (0) +#define con_set_default_unimap(vc) (0) +#define con_copy_unimap(d, s) (0) +#define con_get_unimap(vc, ct, uct, list) (-EINVAL) +#define con_free_unimap(vc) do { ; } while (0) + +#define vc_translate(vc, c) (c) +#endif + /* vt.c */ int vt_waitactive(int vt); void change_console(struct vc_data *new_vc); -- cgit v1.2.3 From 59018b6d2acabb114ab58637e6ab95ba424a89d0 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 20 May 2008 01:03:52 +0300 Subject: MTD/JFFS2: remove CVS keywords Once upon a time, the MTD repository was using CVS. This patch therefore removes all usages of the no longer updated CVS keywords from the MTD code. This also includes code that printed them to the user. Signed-off-by: Adrian Bunk Signed-off-by: David Woodhouse --- drivers/mtd/Kconfig | 2 -- drivers/mtd/afs.c | 2 -- drivers/mtd/chips/cfi_cmdset_0001.c | 2 -- drivers/mtd/chips/cfi_cmdset_0002.c | 3 --- drivers/mtd/chips/cfi_cmdset_0020.c | 2 -- drivers/mtd/chips/cfi_probe.c | 1 - drivers/mtd/chips/cfi_util.c | 3 --- drivers/mtd/chips/chipreg.c | 2 -- drivers/mtd/chips/gen_probe.c | 1 - drivers/mtd/chips/jedec_probe.c | 1 - drivers/mtd/chips/map_absent.c | 1 - drivers/mtd/chips/map_ram.c | 1 - drivers/mtd/chips/map_rom.c | 1 - drivers/mtd/cmdlinepart.c | 2 -- drivers/mtd/devices/Kconfig | 1 - drivers/mtd/devices/Makefile | 1 - drivers/mtd/devices/block2mtd.c | 6 ------ drivers/mtd/devices/doc2000.c | 2 -- drivers/mtd/devices/doc2001.c | 2 -- drivers/mtd/devices/doc2001plus.c | 2 -- drivers/mtd/devices/docecc.c | 2 -- drivers/mtd/devices/docprobe.c | 3 --- drivers/mtd/devices/lart.c | 2 -- drivers/mtd/devices/ms02-nv.c | 2 -- drivers/mtd/devices/ms02-nv.h | 2 -- drivers/mtd/devices/mtdram.c | 1 - drivers/mtd/devices/phram.c | 2 -- drivers/mtd/devices/pmc551.c | 2 -- drivers/mtd/devices/slram.c | 2 -- drivers/mtd/ftl.c | 3 --- drivers/mtd/inftlcore.c | 5 ----- drivers/mtd/inftlmount.c | 4 ---- drivers/mtd/maps/Kconfig | 1 - drivers/mtd/maps/Makefile | 1 - drivers/mtd/maps/amd76xrom.c | 1 - drivers/mtd/maps/autcpu12-nvram.c | 2 -- drivers/mtd/maps/bast-flash.c | 2 -- drivers/mtd/maps/cdb89712.c | 1 - drivers/mtd/maps/ceiva.c | 1 - drivers/mtd/maps/cfi_flagadm.c | 2 -- drivers/mtd/maps/dbox2-flash.c | 2 -- drivers/mtd/maps/dc21285.c | 2 -- drivers/mtd/maps/dilnetpc.c | 2 -- drivers/mtd/maps/dmv182.c | 2 -- drivers/mtd/maps/ebony.c | 2 -- drivers/mtd/maps/edb7312.c | 2 -- drivers/mtd/maps/fortunet.c | 1 - drivers/mtd/maps/h720x-flash.c | 2 -- drivers/mtd/maps/ichxrom.c | 1 - drivers/mtd/maps/impa7.c | 2 -- drivers/mtd/maps/integrator-flash.c | 2 -- drivers/mtd/maps/ipaq-flash.c | 2 -- drivers/mtd/maps/ixp2000.c | 2 -- drivers/mtd/maps/ixp4xx.c | 2 -- drivers/mtd/maps/l440gx.c | 2 -- drivers/mtd/maps/map_funcs.c | 2 -- drivers/mtd/maps/mbx860.c | 2 -- drivers/mtd/maps/mtx-1_flash.c | 2 -- drivers/mtd/maps/netsc520.c | 2 -- drivers/mtd/maps/nettel.c | 2 -- drivers/mtd/maps/octagon-5066.c | 1 - drivers/mtd/maps/omap-toto-flash.c | 2 -- drivers/mtd/maps/pci.c | 2 -- drivers/mtd/maps/pcmciamtd.c | 5 +---- drivers/mtd/maps/physmap.c | 2 -- drivers/mtd/maps/plat-ram.c | 2 -- drivers/mtd/maps/redwood.c | 2 -- drivers/mtd/maps/rpxlite.c | 2 -- drivers/mtd/maps/sa1100-flash.c | 2 -- drivers/mtd/maps/sbc8240.c | 3 --- drivers/mtd/maps/sbc_gxx.c | 2 -- drivers/mtd/maps/sc520cdp.c | 2 -- drivers/mtd/maps/scb2_flash.c | 1 - drivers/mtd/maps/scx200_docflash.c | 2 -- drivers/mtd/maps/sharpsl-flash.c | 2 -- drivers/mtd/maps/solutionengine.c | 2 -- drivers/mtd/maps/sun_uflash.c | 2 +- drivers/mtd/maps/tqm8xxl.c | 2 -- drivers/mtd/maps/ts5500_flash.c | 2 -- drivers/mtd/maps/tsunami_flash.c | 1 - drivers/mtd/maps/uclinux.c | 2 -- drivers/mtd/maps/vmax301.c | 1 - drivers/mtd/maps/walnut.c | 2 -- drivers/mtd/maps/wr_sbc82xx_flash.c | 2 -- drivers/mtd/mtd_blkdevs.c | 2 -- drivers/mtd/mtdblock.c | 2 -- drivers/mtd/mtdblock_ro.c | 2 -- drivers/mtd/mtdchar.c | 2 -- drivers/mtd/mtdconcat.c | 2 -- drivers/mtd/mtdcore.c | 2 -- drivers/mtd/mtdpart.c | 2 -- drivers/mtd/nand/Kconfig | 1 - drivers/mtd/nand/Makefile | 1 - drivers/mtd/nand/au1550nd.c | 2 -- drivers/mtd/nand/autcpu12.c | 2 -- drivers/mtd/nand/diskonchip.c | 2 -- drivers/mtd/nand/edb7312.c | 2 -- drivers/mtd/nand/h1910.c | 2 -- drivers/mtd/nand/nand_bbt.c | 2 -- drivers/mtd/nand/nand_ecc.c | 2 -- drivers/mtd/nand/nand_ids.c | 2 -- drivers/mtd/nand/nandsim.c | 2 -- drivers/mtd/nand/ppchameleonevb.c | 2 -- drivers/mtd/nand/rtc_from4.c | 2 -- drivers/mtd/nand/s3c2410.c | 2 -- drivers/mtd/nand/sharpsl.c | 2 -- drivers/mtd/nand/spia.c | 2 -- drivers/mtd/nand/toto.c | 2 -- drivers/mtd/nand/ts7250.c | 2 -- drivers/mtd/nftlcore.c | 5 ----- drivers/mtd/nftlmount.c | 4 ---- drivers/mtd/redboot.c | 2 -- drivers/mtd/rfd_ftl.c | 2 -- include/linux/jffs2.h | 3 --- include/linux/mtd/blktrans.h | 2 -- include/linux/mtd/cfi.h | 1 - include/linux/mtd/cfi_endian.h | 5 ----- include/linux/mtd/concat.h | 2 -- include/linux/mtd/doc2000.h | 2 -- include/linux/mtd/flashchip.h | 3 --- include/linux/mtd/ftl.h | 2 -- include/linux/mtd/gen_probe.h | 1 - include/linux/mtd/inftl.h | 4 ---- include/linux/mtd/map.h | 1 - include/linux/mtd/mtd.h | 2 -- include/linux/mtd/nand.h | 2 -- include/linux/mtd/nand_ecc.h | 2 -- include/linux/mtd/nftl.h | 2 -- include/linux/mtd/partitions.h | 2 -- include/linux/mtd/physmap.h | 2 -- include/linux/mtd/plat-ram.h | 2 -- include/linux/mtd/pmc551.h | 4 +--- include/linux/mtd/xip.h | 2 -- include/mtd/inftl-user.h | 2 -- include/mtd/jffs2-user.h | 2 -- include/mtd/mtd-abi.h | 2 -- include/mtd/mtd-user.h | 2 -- include/mtd/nftl-user.h | 2 -- 138 files changed, 3 insertions(+), 279 deletions(-) (limited to 'include') diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index eed06d068fd1..14f11f8b9e5f 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -1,5 +1,3 @@ -# $Id: Kconfig,v 1.11 2005/11/07 11:14:19 gleixner Exp $ - menuconfig MTD tristate "Memory Technology Device (MTD) support" depends on HAS_IOMEM diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index 52d51eb91c16..d072ca5be689 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -21,8 +21,6 @@ This is access code for flashes using ARM's flash partitioning standards. - $Id: afs.c,v 1.15 2005/11/07 11:14:19 gleixner Exp $ - ======================================================================*/ #include diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index cc6b7bb6de02..324ff82a3cd9 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -4,8 +4,6 @@ * * (C) 2000 Red Hat. GPL'd * - * $Id: cfi_cmdset_0001.c,v 1.186 2005/11/23 22:07:52 nico Exp $ - * * * 10/10/2000 Nicolas Pitre * - completely revamped method functions so they are aware and diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index f7fcc6389533..a972cc6be436 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -16,9 +16,6 @@ * Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com * * This code is GPL - * - * $Id: cfi_cmdset_0002.c,v 1.122 2005/11/07 11:14:22 gleixner Exp $ - * */ #include diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c index 1b720cc571f3..d4714dd9f7ab 100644 --- a/drivers/mtd/chips/cfi_cmdset_0020.c +++ b/drivers/mtd/chips/cfi_cmdset_0020.c @@ -4,8 +4,6 @@ * * (C) 2000 Red Hat. GPL'd * - * $Id: cfi_cmdset_0020.c,v 1.22 2005/11/07 11:14:22 gleixner Exp $ - * * 10/10/2000 Nicolas Pitre * - completely revamped method functions so they are aware and * independent of the flash geometry (buswidth, interleave, etc.) diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c index a4463a91ce31..c418e92e1d92 100644 --- a/drivers/mtd/chips/cfi_probe.c +++ b/drivers/mtd/chips/cfi_probe.c @@ -1,7 +1,6 @@ /* Common Flash Interface probe code. (C) 2000 Red Hat. GPL'd. - $Id: cfi_probe.c,v 1.86 2005/11/29 14:48:31 gleixner Exp $ */ #include diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c index 72e0022a47bf..0ee457018016 100644 --- a/drivers/mtd/chips/cfi_util.c +++ b/drivers/mtd/chips/cfi_util.c @@ -6,9 +6,6 @@ * Copyright (C) 2003 STMicroelectronics Limited * * This code is covered by the GPL. - * - * $Id: cfi_util.c,v 1.10 2005/11/07 11:14:23 gleixner Exp $ - * */ #include diff --git a/drivers/mtd/chips/chipreg.c b/drivers/mtd/chips/chipreg.c index 2174c97549f0..c85760968227 100644 --- a/drivers/mtd/chips/chipreg.c +++ b/drivers/mtd/chips/chipreg.c @@ -1,6 +1,4 @@ /* - * $Id: chipreg.c,v 1.17 2004/11/16 18:29:00 dwmw2 Exp $ - * * Registration for chip drivers * */ diff --git a/drivers/mtd/chips/gen_probe.c b/drivers/mtd/chips/gen_probe.c index d338b8c92780..e53a58ae384f 100644 --- a/drivers/mtd/chips/gen_probe.c +++ b/drivers/mtd/chips/gen_probe.c @@ -2,7 +2,6 @@ * Routines common to all CFI-type probes. * (C) 2001-2003 Red Hat, Inc. * GPL'd - * $Id: gen_probe.c,v 1.24 2005/11/07 11:14:23 gleixner Exp $ */ #include diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index b229da8060dd..afb35e3a3cee 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -1,7 +1,6 @@ /* Common Flash Interface probe code. (C) 2000 Red Hat. GPL'd. - $Id: jedec_probe.c,v 1.66 2005/11/07 11:14:23 gleixner Exp $ See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5) for the standard this probe goes back to. diff --git a/drivers/mtd/chips/map_absent.c b/drivers/mtd/chips/map_absent.c index fc478c0f93f5..494d30d0631a 100644 --- a/drivers/mtd/chips/map_absent.c +++ b/drivers/mtd/chips/map_absent.c @@ -1,7 +1,6 @@ /* * Common code to handle absent "placeholder" devices * Copyright 2001 Resilience Corporation - * $Id: map_absent.c,v 1.6 2005/11/07 11:14:23 gleixner Exp $ * * This map driver is used to allocate "placeholder" MTD * devices on systems that have socketed/removable media. diff --git a/drivers/mtd/chips/map_ram.c b/drivers/mtd/chips/map_ram.c index 5cb6d5263661..072dd8abf33a 100644 --- a/drivers/mtd/chips/map_ram.c +++ b/drivers/mtd/chips/map_ram.c @@ -1,7 +1,6 @@ /* * Common code to handle map devices which are simple RAM * (C) 2000 Red Hat. GPL'd. - * $Id: map_ram.c,v 1.22 2005/01/05 18:05:12 dwmw2 Exp $ */ #include diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c index cb27f855074c..821d0ed6bae3 100644 --- a/drivers/mtd/chips/map_rom.c +++ b/drivers/mtd/chips/map_rom.c @@ -1,7 +1,6 @@ /* * Common code to handle map devices which are simple ROM * (C) 2000 Red Hat. GPL'd. - * $Id: map_rom.c,v 1.23 2005/01/05 18:05:12 dwmw2 Exp $ */ #include diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index e472a0e9de9d..68782ab2f0de 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -1,6 +1,4 @@ /* - * $Id: cmdlinepart.c,v 1.19 2005/11/07 11:14:19 gleixner Exp $ - * * Read flash partition table from command line * * Copyright 2002 SYSGO Real-Time Solutions GmbH diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 35ed1103dbb2..9c613f06623c 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -1,5 +1,4 @@ # drivers/mtd/maps/Kconfig -# $Id: Kconfig,v 1.18 2005/11/07 11:14:24 gleixner Exp $ menu "Self-contained MTD device drivers" depends on MTD!=n diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile index 0f788d5c4bf8..0993d5cf3923 100644 --- a/drivers/mtd/devices/Makefile +++ b/drivers/mtd/devices/Makefile @@ -1,7 +1,6 @@ # # linux/drivers/devices/Makefile # -# $Id: Makefile.common,v 1.7 2004/12/22 17:51:15 joern Exp $ obj-$(CONFIG_MTD_DOC2000) += doc2000.o obj-$(CONFIG_MTD_DOC2001) += doc2001.o diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 519d942e7940..303ea9b8cfe4 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -1,6 +1,4 @@ /* - * $Id: block2mtd.c,v 1.30 2005/11/29 14:48:32 gleixner Exp $ - * * block2mtd.c - create an mtd from a block device * * Copyright (C) 2001,2002 Simon Evans @@ -20,9 +18,6 @@ #include #include -#define VERSION "$Revision: 1.30 $" - - #define ERROR(fmt, args...) printk(KERN_ERR "block2mtd: " fmt "\n" , ## args) #define INFO(fmt, args...) printk(KERN_INFO "block2mtd: " fmt "\n" , ## args) @@ -451,7 +446,6 @@ MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=[,]\""); static int __init block2mtd_init(void) { int ret = 0; - INFO("version " VERSION); #ifndef MODULE if (strlen(block2mtd_paramline)) diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c index 846989f292e3..50de839c77a9 100644 --- a/drivers/mtd/devices/doc2000.c +++ b/drivers/mtd/devices/doc2000.c @@ -3,8 +3,6 @@ * Linux driver for Disk-On-Chip 2000 and Millennium * (c) 1999 Machine Vision Holdings, Inc. * (c) 1999, 2000 David Woodhouse - * - * $Id: doc2000.c,v 1.67 2005/11/07 11:14:24 gleixner Exp $ */ #include diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index 6413efc045e0..e32c568c1145 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -3,8 +3,6 @@ * Linux driver for Disk-On-Chip Millennium * (c) 1999 Machine Vision Holdings, Inc. * (c) 1999, 2000 David Woodhouse - * - * $Id: doc2001.c,v 1.49 2005/11/07 11:14:24 gleixner Exp $ */ #include diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c index 83be3461658f..d853f891b586 100644 --- a/drivers/mtd/devices/doc2001plus.c +++ b/drivers/mtd/devices/doc2001plus.c @@ -6,8 +6,6 @@ * (c) 1999 Machine Vision Holdings, Inc. * (c) 1999, 2000 David Woodhouse * - * $Id: doc2001plus.c,v 1.14 2005/11/07 11:14:24 gleixner Exp $ - * * Released under GPL */ diff --git a/drivers/mtd/devices/docecc.c b/drivers/mtd/devices/docecc.c index fd8a8daba3a8..874e51b110a2 100644 --- a/drivers/mtd/devices/docecc.c +++ b/drivers/mtd/devices/docecc.c @@ -7,8 +7,6 @@ * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * - * $Id: docecc.c,v 1.7 2005/11/07 11:14:25 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c index d8cc94ec4e50..6e5d811ae83a 100644 --- a/drivers/mtd/devices/docprobe.c +++ b/drivers/mtd/devices/docprobe.c @@ -4,9 +4,6 @@ /* (C) 1999 Machine Vision Holdings, Inc. */ /* (C) 1999-2003 David Woodhouse */ -/* $Id: docprobe.c,v 1.46 2005/11/07 11:14:25 gleixner Exp $ */ - - /* DOC_PASSIVE_PROBE: In order to ensure that the BIOS checksum is correct at boot time, and diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c index 1d324e5c412d..f4bda4cee495 100644 --- a/drivers/mtd/devices/lart.c +++ b/drivers/mtd/devices/lart.c @@ -2,8 +2,6 @@ /* * MTD driver for the 28F160F3 Flash Memory (non-CFI) on LART. * - * $Id: lart.c,v 1.9 2005/11/07 11:14:25 gleixner Exp $ - * * Author: Abraham vd Merwe * * Copyright (c) 2001, 2d3D, Inc. diff --git a/drivers/mtd/devices/ms02-nv.c b/drivers/mtd/devices/ms02-nv.c index 9cff119a2024..6a9a24a80a6d 100644 --- a/drivers/mtd/devices/ms02-nv.c +++ b/drivers/mtd/devices/ms02-nv.c @@ -5,8 +5,6 @@ * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. - * - * $Id: ms02-nv.c,v 1.11 2005/11/14 13:41:47 macro Exp $ */ #include diff --git a/drivers/mtd/devices/ms02-nv.h b/drivers/mtd/devices/ms02-nv.h index 8a6eef7cfee3..04deafd3a771 100644 --- a/drivers/mtd/devices/ms02-nv.h +++ b/drivers/mtd/devices/ms02-nv.h @@ -9,8 +9,6 @@ * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. - * - * $Id: ms02-nv.h,v 1.3 2003/08/19 09:25:36 dwmw2 Exp $ */ #include diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c index 0399be178620..3aaca88847d3 100644 --- a/drivers/mtd/devices/mtdram.c +++ b/drivers/mtd/devices/mtdram.c @@ -1,6 +1,5 @@ /* * mtdram - a test mtd device - * $Id: mtdram.c,v 1.37 2005/04/21 03:42:11 joern Exp $ * Author: Alexander Larsson * * Copyright (c) 1999 Alexander Larsson diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index c7987b1c5e01..088fbb7595b5 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -1,6 +1,4 @@ /** - * $Id: phram.c,v 1.16 2005/11/07 11:14:25 gleixner Exp $ - * * Copyright (c) ???? Jochen Schäuble * Copyright (c) 2003-2004 Joern Engel * diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index bc9981749064..d38bca64bb15 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -1,6 +1,4 @@ /* - * $Id: pmc551.c,v 1.32 2005/11/07 11:14:25 gleixner Exp $ - * * PMC551 PCI Mezzanine Ram Device * * Author: diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index cb86db746f28..a425d09f35a0 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -1,7 +1,5 @@ /*====================================================================== - $Id: slram.c,v 1.36 2005/11/07 11:14:25 gleixner Exp $ - This driver provides a method to access memory not used by the kernel itself (i.e. if the kernel commandline mem=xxx is used). To actually use slram at least mtdblock or mtdchar is required (for block or diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c index 4a79b187b568..3fed8f94ac6f 100644 --- a/drivers/mtd/ftl.c +++ b/drivers/mtd/ftl.c @@ -1,5 +1,4 @@ /* This version ported to the Linux-MTD system by dwmw2@infradead.org - * $Id: ftl.c,v 1.59 2005/11/29 14:48:31 gleixner Exp $ * * Fixes: Arnaldo Carvalho de Melo * - fixes some leaks on failure in build_maps and ftl_notify_add, cleanups @@ -1082,8 +1081,6 @@ static struct mtd_blktrans_ops ftl_tr = { static int init_ftl(void) { - DEBUG(0, "$Id: ftl.c,v 1.59 2005/11/29 14:48:31 gleixner Exp $\n"); - return register_mtd_blktrans(&ftl_tr); } diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index b0e396504e67..c4f9d3378b24 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -7,8 +7,6 @@ * (c) 1999 Machine Vision Holdings, Inc. * Author: David Woodhouse * - * $Id: inftlcore.c,v 1.19 2005/11/07 11:14:20 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -953,9 +951,6 @@ static struct mtd_blktrans_ops inftl_tr = { static int __init init_inftl(void) { - printk(KERN_INFO "INFTL: inftlcore.c $Revision: 1.19 $, " - "inftlmount.c %s\n", inftlmountrev); - return register_mtd_blktrans(&inftl_tr); } diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c index c551d2f0779c..9113628ed1ef 100644 --- a/drivers/mtd/inftlmount.c +++ b/drivers/mtd/inftlmount.c @@ -8,8 +8,6 @@ * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * - * $Id: inftlmount.c,v 1.18 2005/11/07 11:14:20 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -39,8 +37,6 @@ #include #include -char inftlmountrev[]="$Revision: 1.18 $"; - /* * find_boot_record: Find the INFTL Media Header and its Spare copy which * contains the various device information of the INFTL partition and diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 1bd69aa9e22a..b2c180245618 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -1,5 +1,4 @@ # drivers/mtd/maps/Kconfig -# $Id: Kconfig,v 1.61 2005/11/07 11:14:26 gleixner Exp $ menu "Mapping drivers for chip access" depends on MTD!=n diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index a9cbe80f99a0..5444eaf4026f 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -1,7 +1,6 @@ # # linux/drivers/maps/Makefile # -# $Id: Makefile.common,v 1.34 2005/11/07 11:14:26 gleixner Exp $ ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y) obj-$(CONFIG_MTD) += map_funcs.o diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index 728aed6ad722..948b86f35ef4 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -2,7 +2,6 @@ * amd76xrom.c * * Normal mappings of chips in physical memory - * $Id: amd76xrom.c,v 1.21 2005/11/07 11:14:26 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c index 7ed3424dd959..cf32267263df 100644 --- a/drivers/mtd/maps/autcpu12-nvram.c +++ b/drivers/mtd/maps/autcpu12-nvram.c @@ -2,8 +2,6 @@ * NV-RAM memory access on autcpu12 * (C) 2002 Thomas Gleixner (gleixner@autronix.de) * - * $Id: autcpu12-nvram.c,v 1.9 2005/11/07 11:14:26 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c index 1f492062f8ca..ca5414880341 100644 --- a/drivers/mtd/maps/bast-flash.c +++ b/drivers/mtd/maps/bast-flash.c @@ -9,8 +9,6 @@ * 20-Sep-2004 BJD Initial version * 17-Jan-2005 BJD Add whole device if no partitions found * - * $Id: bast-flash.c,v 1.5 2005/11/07 11:14:26 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/maps/cdb89712.c b/drivers/mtd/maps/cdb89712.c index 9f17bb6c5a9d..cb507da0a87d 100644 --- a/drivers/mtd/maps/cdb89712.c +++ b/drivers/mtd/maps/cdb89712.c @@ -1,7 +1,6 @@ /* * Flash on Cirrus CDB89712 * - * $Id: cdb89712.c,v 1.11 2005/11/07 11:14:26 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c index 629e6e2641a8..6464d487eb1a 100644 --- a/drivers/mtd/maps/ceiva.c +++ b/drivers/mtd/maps/ceiva.c @@ -11,7 +11,6 @@ * * (C) 2000 Nicolas Pitre * - * $Id: ceiva.c,v 1.11 2004/09/16 23:27:12 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/cfi_flagadm.c b/drivers/mtd/maps/cfi_flagadm.c index 65e5ee552010..0ecc3f6d735b 100644 --- a/drivers/mtd/maps/cfi_flagadm.c +++ b/drivers/mtd/maps/cfi_flagadm.c @@ -1,8 +1,6 @@ /* * Copyright © 2001 Flaga hf. Medical Devices, Kári Davíðsson * - * $Id: cfi_flagadm.c,v 1.15 2005/11/07 11:14:26 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your diff --git a/drivers/mtd/maps/dbox2-flash.c b/drivers/mtd/maps/dbox2-flash.c index 92a9c7fac993..e115667bf1d0 100644 --- a/drivers/mtd/maps/dbox2-flash.c +++ b/drivers/mtd/maps/dbox2-flash.c @@ -1,6 +1,4 @@ /* - * $Id: dbox2-flash.c,v 1.14 2005/11/07 11:14:26 gleixner Exp $ - * * D-Box 2 flash driver */ diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c index b32bb9347d71..3aa018c092f8 100644 --- a/drivers/mtd/maps/dc21285.c +++ b/drivers/mtd/maps/dc21285.c @@ -4,8 +4,6 @@ * (C) 2000 Nicolas Pitre * * This code is GPL - * - * $Id: dc21285.c,v 1.24 2005/11/07 11:14:26 gleixner Exp $ */ #include #include diff --git a/drivers/mtd/maps/dilnetpc.c b/drivers/mtd/maps/dilnetpc.c index 1c3b34ad7325..0713e3a5a22c 100644 --- a/drivers/mtd/maps/dilnetpc.c +++ b/drivers/mtd/maps/dilnetpc.c @@ -14,8 +14,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * - * $Id: dilnetpc.c,v 1.20 2005/11/07 11:14:26 gleixner Exp $ - * * The DIL/Net PC is a tiny embedded PC board made by SSV Embedded Systems * featuring the AMD Elan SC410 processor. There are two variants of this * board: DNP/1486 and ADNP/1486. The DNP version has 2 megs of flash diff --git a/drivers/mtd/maps/dmv182.c b/drivers/mtd/maps/dmv182.c index e0558b0b2fe6..d171674eb2ed 100644 --- a/drivers/mtd/maps/dmv182.c +++ b/drivers/mtd/maps/dmv182.c @@ -4,8 +4,6 @@ * * Flash map driver for the Dy4 SVME182 board * - * $Id: dmv182.c,v 1.6 2005/11/07 11:14:26 gleixner Exp $ - * * Copyright 2003-2004, TimeSys Corporation * * Based on the SVME181 flash map, by Tom Nelson, Dot4, Inc. for TimeSys Corp. diff --git a/drivers/mtd/maps/ebony.c b/drivers/mtd/maps/ebony.c index 1488bb92f26f..d92b7c70d3ed 100644 --- a/drivers/mtd/maps/ebony.c +++ b/drivers/mtd/maps/ebony.c @@ -1,6 +1,4 @@ /* - * $Id: ebony.c,v 1.16 2005/11/07 11:14:26 gleixner Exp $ - * * Mapping for Ebony user flash * * Matt Porter diff --git a/drivers/mtd/maps/edb7312.c b/drivers/mtd/maps/edb7312.c index 1c5b97c89685..9433738c1664 100644 --- a/drivers/mtd/maps/edb7312.c +++ b/drivers/mtd/maps/edb7312.c @@ -1,6 +1,4 @@ /* - * $Id: edb7312.c,v 1.14 2005/11/07 11:14:27 gleixner Exp $ - * * Handle mapping of the NOR flash on Cogent EDB7312 boards * * Copyright 2002 SYSGO Real-Time Solutions GmbH diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c index 7c50c271651c..a8e3fde4cbd5 100644 --- a/drivers/mtd/maps/fortunet.c +++ b/drivers/mtd/maps/fortunet.c @@ -1,6 +1,5 @@ /* fortunet.c memory map * - * $Id: fortunet.c,v 1.11 2005/11/07 11:14:27 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c index 6dde3182d64a..ef8915474462 100644 --- a/drivers/mtd/maps/h720x-flash.c +++ b/drivers/mtd/maps/h720x-flash.c @@ -2,8 +2,6 @@ * Flash memory access on Hynix GMS30C7201/HMS30C7202 based * evaluation boards * - * $Id: h720x-flash.c,v 1.12 2005/11/07 11:14:27 gleixner Exp $ - * * (C) 2002 Jungjun Kim * 2003 Thomas Gleixner */ diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index 2c884c49e84a..aeb6c916e23f 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -2,7 +2,6 @@ * ichxrom.c * * Normal mappings of chips in physical memory - * $Id: ichxrom.c,v 1.19 2005/11/07 11:14:27 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c index a0b4dc7155dc..2682ab51a367 100644 --- a/drivers/mtd/maps/impa7.c +++ b/drivers/mtd/maps/impa7.c @@ -1,6 +1,4 @@ /* - * $Id: impa7.c,v 1.14 2005/11/07 11:14:27 gleixner Exp $ - * * Handle mapping of the NOR flash on implementa A7 boards * * Copyright 2002 SYSGO Real-Time Solutions GmbH diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c index 325c8880c437..ee361aaadb1e 100644 --- a/drivers/mtd/maps/integrator-flash.c +++ b/drivers/mtd/maps/integrator-flash.c @@ -22,8 +22,6 @@ This is access code for flashes using ARM's flash partitioning standards. - $Id: integrator-flash.c,v 1.20 2005/11/07 11:14:27 gleixner Exp $ - ======================================================================*/ #include diff --git a/drivers/mtd/maps/ipaq-flash.c b/drivers/mtd/maps/ipaq-flash.c index f27c132794c3..a806119797e0 100644 --- a/drivers/mtd/maps/ipaq-flash.c +++ b/drivers/mtd/maps/ipaq-flash.c @@ -4,8 +4,6 @@ * (C) 2000 Nicolas Pitre * (C) 2002 Hewlett-Packard Company * (C) 2003 Christian Pellegrin , : concatenation of multiple flashes - * - * $Id: ipaq-flash.c,v 1.5 2005/11/07 11:14:27 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c index c8396b8574c4..c2264792a20b 100644 --- a/drivers/mtd/maps/ixp2000.c +++ b/drivers/mtd/maps/ixp2000.c @@ -1,6 +1,4 @@ /* - * $Id: ixp2000.c,v 1.9 2005/11/07 11:14:27 gleixner Exp $ - * * drivers/mtd/maps/ixp2000.c * * Mapping for the Intel XScale IXP2000 based systems diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c index 01f19a4714b5..9c7a5fbd4e51 100644 --- a/drivers/mtd/maps/ixp4xx.c +++ b/drivers/mtd/maps/ixp4xx.c @@ -1,6 +1,4 @@ /* - * $Id: ixp4xx.c,v 1.13 2005/11/16 16:23:21 dvrabel Exp $ - * * drivers/mtd/maps/ixp4xx.c * * MTD Map file for IXP4XX based systems. Please do not make per-board diff --git a/drivers/mtd/maps/l440gx.c b/drivers/mtd/maps/l440gx.c index 67620adf4811..9e054503c4cf 100644 --- a/drivers/mtd/maps/l440gx.c +++ b/drivers/mtd/maps/l440gx.c @@ -1,6 +1,4 @@ /* - * $Id: l440gx.c,v 1.18 2005/11/07 11:14:27 gleixner Exp $ - * * BIOS Flash chip on Intel 440GX board. * * Bugs this currently does not work under linuxBIOS. diff --git a/drivers/mtd/maps/map_funcs.c b/drivers/mtd/maps/map_funcs.c index 9105e6ca0aa6..3f268370eeca 100644 --- a/drivers/mtd/maps/map_funcs.c +++ b/drivers/mtd/maps/map_funcs.c @@ -1,6 +1,4 @@ /* - * $Id: map_funcs.c,v 1.10 2005/06/06 23:04:36 tpoynor Exp $ - * * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS * is enabled. */ diff --git a/drivers/mtd/maps/mbx860.c b/drivers/mtd/maps/mbx860.c index 06b118727846..706f67394b07 100644 --- a/drivers/mtd/maps/mbx860.c +++ b/drivers/mtd/maps/mbx860.c @@ -1,6 +1,4 @@ /* - * $Id: mbx860.c,v 1.9 2005/11/07 11:14:27 gleixner Exp $ - * * Handle mapping of the flash on MBX860 boards * * Author: Anton Todorov diff --git a/drivers/mtd/maps/mtx-1_flash.c b/drivers/mtd/maps/mtx-1_flash.c index 2a8fde9b92f0..a3b651904127 100644 --- a/drivers/mtd/maps/mtx-1_flash.c +++ b/drivers/mtd/maps/mtx-1_flash.c @@ -1,8 +1,6 @@ /* * Flash memory access on 4G Systems MTX-1 boards * - * $Id: mtx-1_flash.c,v 1.2 2005/11/07 11:14:27 gleixner Exp $ - * * (C) 2005 Bruno Randolf * (C) 2005 Joern Engel * diff --git a/drivers/mtd/maps/netsc520.c b/drivers/mtd/maps/netsc520.c index 95dcab2146ad..c0cb319b2b70 100644 --- a/drivers/mtd/maps/netsc520.c +++ b/drivers/mtd/maps/netsc520.c @@ -3,8 +3,6 @@ * Copyright (C) 2001 Mark Langsdorf (mark.langsdorf@amd.com) * based on sc520cdp.c by Sysgo Real-Time Solutions GmbH * - * $Id: netsc520.c,v 1.14 2005/11/07 11:14:27 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c index 0c9b305a72e0..965e6c6d6ab0 100644 --- a/drivers/mtd/maps/nettel.c +++ b/drivers/mtd/maps/nettel.c @@ -5,8 +5,6 @@ * * (C) Copyright 2000-2001, Greg Ungerer (gerg@snapgear.com) * (C) Copyright 2001-2002, SnapGear (www.snapgear.com) - * - * $Id: nettel.c,v 1.12 2005/11/29 14:30:00 gleixner Exp $ */ /****************************************************************************/ diff --git a/drivers/mtd/maps/octagon-5066.c b/drivers/mtd/maps/octagon-5066.c index a6642db3d325..43e04c1d22a9 100644 --- a/drivers/mtd/maps/octagon-5066.c +++ b/drivers/mtd/maps/octagon-5066.c @@ -1,4 +1,3 @@ -// $Id: octagon-5066.c,v 1.28 2005/11/07 11:14:27 gleixner Exp $ /* ###################################################################### Octagon 5066 MTD Driver. diff --git a/drivers/mtd/maps/omap-toto-flash.c b/drivers/mtd/maps/omap-toto-flash.c index e6e391efbeb6..0a60ebbc2175 100644 --- a/drivers/mtd/maps/omap-toto-flash.c +++ b/drivers/mtd/maps/omap-toto-flash.c @@ -4,8 +4,6 @@ * jzhang@ti.com (C) 2003 Texas Instruments. * * (C) 2002 MontVista Software, Inc. - * - * $Id: omap-toto-flash.c,v 1.5 2005/11/07 11:14:27 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c index d2ab1bae9c34..5c6a25c90380 100644 --- a/drivers/mtd/maps/pci.c +++ b/drivers/mtd/maps/pci.c @@ -7,8 +7,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * - * $Id: pci.c,v 1.14 2005/11/17 08:20:27 dwmw2 Exp $ - * * Generic PCI memory map driver. We support the following boards: * - Intel IQ80310 ATU. * - Intel EBSA285 (blank rom programming mode). Tested working 27/09/2001 diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c index 1912d968718b..8f7ca863f89d 100644 --- a/drivers/mtd/maps/pcmciamtd.c +++ b/drivers/mtd/maps/pcmciamtd.c @@ -1,6 +1,4 @@ /* - * $Id: pcmciamtd.c,v 1.55 2005/11/07 11:14:28 gleixner Exp $ - * * pcmciamtd.c - MTD driver for PCMCIA flash memory cards * * Author: Simon Evans @@ -48,7 +46,6 @@ static const int debug = 0; #define DRIVER_DESC "PCMCIA Flash memory card driver" -#define DRIVER_VERSION "$Revision: 1.55 $" /* Size of the PCMCIA address space: 26 bits = 64 MB */ #define MAX_PCMCIA_ADDR 0x4000000 @@ -790,7 +787,7 @@ static struct pcmcia_driver pcmciamtd_driver = { static int __init init_pcmciamtd(void) { - info(DRIVER_DESC " " DRIVER_VERSION); + info(DRIVER_DESC); if(bankwidth && bankwidth != 1 && bankwidth != 2) { info("bad bankwidth (%d), using default", bankwidth); diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 183255fcfdcb..1f6b9066b63e 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -1,6 +1,4 @@ /* - * $Id: physmap.c,v 1.39 2005/11/29 14:49:36 gleixner Exp $ - * * Normal mappings of chips in physical memory * * Copyright (C) 2003 MontaVista Software Inc. diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c index 3eb2643b2328..e7dd9c8a965e 100644 --- a/drivers/mtd/maps/plat-ram.c +++ b/drivers/mtd/maps/plat-ram.c @@ -6,8 +6,6 @@ * * Generic platfrom device based RAM map * - * $Id: plat-ram.c,v 1.7 2005/11/07 11:14:28 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/maps/redwood.c b/drivers/mtd/maps/redwood.c index 4d858b3d5f82..de002eb1a7fe 100644 --- a/drivers/mtd/maps/redwood.c +++ b/drivers/mtd/maps/redwood.c @@ -1,6 +1,4 @@ /* - * $Id: redwood.c,v 1.11 2005/11/07 11:14:28 gleixner Exp $ - * * drivers/mtd/maps/redwood.c * * FLASH map for the IBM Redwood 4/5/6 boards. diff --git a/drivers/mtd/maps/rpxlite.c b/drivers/mtd/maps/rpxlite.c index 809a0c8e7aaf..14d90edb4430 100644 --- a/drivers/mtd/maps/rpxlite.c +++ b/drivers/mtd/maps/rpxlite.c @@ -1,6 +1,4 @@ /* - * $Id: rpxlite.c,v 1.22 2004/11/04 13:24:15 gleixner Exp $ - * * Handle mapping of the flash on the RPX Lite and CLLF boards */ diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index c7d5a52a2d55..e177a43dfff0 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -2,8 +2,6 @@ * Flash memory access on SA11x0 based devices * * (C) 2000 Nicolas Pitre - * - * $Id: sa1100-flash.c,v 1.51 2005/11/07 11:14:28 gleixner Exp $ */ #include #include diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c index b8c1331b7a04..6e1e99cd2b59 100644 --- a/drivers/mtd/maps/sbc8240.c +++ b/drivers/mtd/maps/sbc8240.c @@ -4,9 +4,6 @@ * Carolyn Smith, Tektronix, Inc. * * This code is GPLed - * - * $Id: sbc8240.c,v 1.5 2005/11/07 11:14:28 gleixner Exp $ - * */ /* diff --git a/drivers/mtd/maps/sbc_gxx.c b/drivers/mtd/maps/sbc_gxx.c index 7cc4041d096d..1b1c0b7e11ef 100644 --- a/drivers/mtd/maps/sbc_gxx.c +++ b/drivers/mtd/maps/sbc_gxx.c @@ -17,8 +17,6 @@ along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - $Id: sbc_gxx.c,v 1.35 2005/11/07 11:14:28 gleixner Exp $ - The SBC-MediaGX / SBC-GXx has up to 16 MiB of Intel StrataFlash (28F320/28F640) in x8 mode. diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c index 4045e372b90d..85c1e56309ec 100644 --- a/drivers/mtd/maps/sc520cdp.c +++ b/drivers/mtd/maps/sc520cdp.c @@ -16,8 +16,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * - * $Id: sc520cdp.c,v 1.23 2005/11/17 08:20:27 dwmw2 Exp $ - * * * The SC520CDP is an evaluation board for the Elan SC520 processor available * from AMD. It has two banks of 32-bit Flash ROM, each 8 Megabytes in size, diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c index 0fc5584324e3..21169e6d646c 100644 --- a/drivers/mtd/maps/scb2_flash.c +++ b/drivers/mtd/maps/scb2_flash.c @@ -1,6 +1,5 @@ /* * MTD map driver for BIOS Flash on Intel SCB2 boards - * $Id: scb2_flash.c,v 1.12 2005/03/18 14:04:35 gleixner Exp $ * Copyright (C) 2002 Sun Microsystems, Inc. * Tim Hockin * diff --git a/drivers/mtd/maps/scx200_docflash.c b/drivers/mtd/maps/scx200_docflash.c index 5e2bce22f37c..b5391ebb736e 100644 --- a/drivers/mtd/maps/scx200_docflash.c +++ b/drivers/mtd/maps/scx200_docflash.c @@ -2,8 +2,6 @@ Copyright (c) 2001,2002 Christer Weinigel - $Id: scx200_docflash.c,v 1.12 2005/11/07 11:14:28 gleixner Exp $ - National Semiconductor SCx200 flash mapped with DOCCS */ diff --git a/drivers/mtd/maps/sharpsl-flash.c b/drivers/mtd/maps/sharpsl-flash.c index 917dc778f24e..026eab028189 100644 --- a/drivers/mtd/maps/sharpsl-flash.c +++ b/drivers/mtd/maps/sharpsl-flash.c @@ -4,8 +4,6 @@ * Copyright (C) 2001 Lineo Japan, Inc. * Copyright (C) 2002 SHARP * - * $Id: sharpsl-flash.c,v 1.7 2005/11/07 11:14:28 gleixner Exp $ - * * based on rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp * Handle mapping of the flash on the RPX Lite and CLLF boards * diff --git a/drivers/mtd/maps/solutionengine.c b/drivers/mtd/maps/solutionengine.c index d76ceef453ce..0eb41d9c6786 100644 --- a/drivers/mtd/maps/solutionengine.c +++ b/drivers/mtd/maps/solutionengine.c @@ -1,6 +1,4 @@ /* - * $Id: solutionengine.c,v 1.15 2005/11/07 11:14:28 gleixner Exp $ - * * Flash and EPROM on Hitachi Solution Engine and similar boards. * * (C) 2001 Red Hat, Inc. diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 001af7f7ddda..0d7c88396c88 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -1,4 +1,4 @@ -/* $Id: sun_uflash.c,v 1.13 2005/11/07 11:14:28 gleixner Exp $ +/* * * sun_uflash - Driver implementation for user-programmable flash * present on many Sun Microsystems SME boardsets. diff --git a/drivers/mtd/maps/tqm8xxl.c b/drivers/mtd/maps/tqm8xxl.c index 521734057314..a5d3d8531faa 100644 --- a/drivers/mtd/maps/tqm8xxl.c +++ b/drivers/mtd/maps/tqm8xxl.c @@ -2,8 +2,6 @@ * Handle mapping of the flash memory access routines * on TQM8xxL based devices. * - * $Id: tqm8xxl.c,v 1.15 2005/11/07 11:14:28 gleixner Exp $ - * * based on rpxlite.c * * Copyright(C) 2001 Kirk Lee diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c index b47270e850bc..e2147bf11c88 100644 --- a/drivers/mtd/maps/ts5500_flash.c +++ b/drivers/mtd/maps/ts5500_flash.c @@ -22,8 +22,6 @@ * - Drive A and B use the resident flash disk (RFD) flash translation layer. * - If you have created your own jffs file system and the bios overwrites * it during boot, try disabling Drive A: and B: in the boot order. - * - * $Id: ts5500_flash.c,v 1.5 2005/11/07 11:14:28 gleixner Exp $ */ #include diff --git a/drivers/mtd/maps/tsunami_flash.c b/drivers/mtd/maps/tsunami_flash.c index 0f915ac3102e..77a8bfc02577 100644 --- a/drivers/mtd/maps/tsunami_flash.c +++ b/drivers/mtd/maps/tsunami_flash.c @@ -2,7 +2,6 @@ * tsunami_flash.c * * flash chip on alpha ds10... - * $Id: tsunami_flash.c,v 1.10 2005/11/07 11:14:29 gleixner Exp $ */ #include #include diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c index c42f4b83f686..bac000a88313 100644 --- a/drivers/mtd/maps/uclinux.c +++ b/drivers/mtd/maps/uclinux.c @@ -4,8 +4,6 @@ * uclinux.c -- generic memory mapped MTD driver for uclinux * * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com) - * - * $Id: uclinux.c,v 1.12 2005/11/07 11:14:29 gleixner Exp $ */ /****************************************************************************/ diff --git a/drivers/mtd/maps/vmax301.c b/drivers/mtd/maps/vmax301.c index b3e487395435..5a0c9a353b0f 100644 --- a/drivers/mtd/maps/vmax301.c +++ b/drivers/mtd/maps/vmax301.c @@ -1,4 +1,3 @@ -// $Id: vmax301.c,v 1.32 2005/11/07 11:14:29 gleixner Exp $ /* ###################################################################### Tempustech VMAX SBC301 MTD Driver. diff --git a/drivers/mtd/maps/walnut.c b/drivers/mtd/maps/walnut.c index ca932122fb64..e243476c8171 100644 --- a/drivers/mtd/maps/walnut.c +++ b/drivers/mtd/maps/walnut.c @@ -1,6 +1,4 @@ /* - * $Id: walnut.c,v 1.3 2005/11/07 11:14:29 gleixner Exp $ - * * Mapping for Walnut flash * (used ebony.c as a "framework") * diff --git a/drivers/mtd/maps/wr_sbc82xx_flash.c b/drivers/mtd/maps/wr_sbc82xx_flash.c index ac5b8105b6ef..413b0cf9bbd2 100644 --- a/drivers/mtd/maps/wr_sbc82xx_flash.c +++ b/drivers/mtd/maps/wr_sbc82xx_flash.c @@ -1,6 +1,4 @@ /* - * $Id: wr_sbc82xx_flash.c,v 1.8 2005/11/07 11:14:29 gleixner Exp $ - * * Map for flash chips on Wind River PowerQUICC II SBC82xx board. * * Copyright (C) 2004 Red Hat, Inc. diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 839eed8430a2..a0ada45672d8 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -1,6 +1,4 @@ /* - * $Id: mtd_blkdevs.c,v 1.27 2005/11/07 11:14:20 gleixner Exp $ - * * (C) 2003 David Woodhouse * * Interface to Linux 2.5 block layer for MTD 'translation layers'. diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c index 952da30b1745..208c6faa0358 100644 --- a/drivers/mtd/mtdblock.c +++ b/drivers/mtd/mtdblock.c @@ -1,8 +1,6 @@ /* * Direct MTD block device access * - * $Id: mtdblock.c,v 1.68 2005/11/07 11:14:20 gleixner Exp $ - * * (C) 2000-2003 Nicolas Pitre * (C) 1999-2003 David Woodhouse */ diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c index f79dbb49b1a2..852165f8b1c3 100644 --- a/drivers/mtd/mtdblock_ro.c +++ b/drivers/mtd/mtdblock_ro.c @@ -1,6 +1,4 @@ /* - * $Id: mtdblock_ro.c,v 1.19 2004/11/16 18:28:59 dwmw2 Exp $ - * * (C) 2003 David Woodhouse * * Simple read-only (writable only for RAM) mtdblock driver diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 5d3ac512ce16..4b3156f9b36f 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1,6 +1,4 @@ /* - * $Id: mtdchar.c,v 1.76 2005/11/07 11:14:20 gleixner Exp $ - * * Character-device access to raw MTD devices. * */ diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index d563dcd4b264..2972a5edb73d 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -6,8 +6,6 @@ * NAND support by Christian Gan * * This code is GPL - * - * $Id: mtdconcat.c,v 1.11 2005/11/07 11:14:20 gleixner Exp $ */ #include diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 8c61035b968b..4373790401d3 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1,6 +1,4 @@ /* - * $Id: mtdcore.c,v 1.47 2005/11/07 11:14:20 gleixner Exp $ - * * Core registration and callback routines for MTD * drivers and users. * diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 07c701169344..11b803cc405b 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -5,8 +5,6 @@ * * This code is GPL * - * $Id: mtdpart.c,v 1.55 2005/11/07 11:14:20 gleixner Exp $ - * * 02-21-2002 Thomas Gleixner * added support for read_oob, write_oob */ diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 5076faf9ca66..7dea6c3a6603 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -1,5 +1,4 @@ # drivers/mtd/nand/Kconfig -# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $ menuconfig MTD_NAND tristate "NAND Device Support" diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index a6e74a46992a..d95a10c51866 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -1,7 +1,6 @@ # # linux/drivers/nand/Makefile # -# $Id: Makefile.common,v 1.15 2004/11/26 12:28:22 dedekind Exp $ obj-$(CONFIG_MTD_NAND) += nand.o nand_ecc.o obj-$(CONFIG_MTD_NAND_IDS) += nand_ids.o diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 09e421a96893..22ad9f367760 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -3,8 +3,6 @@ * * Copyright (C) 2004 Embedded Edge, LLC * - * $Id: au1550nd.c,v 1.13 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c index dd38011ee0b7..553dd7e9b41c 100644 --- a/drivers/mtd/nand/autcpu12.c +++ b/drivers/mtd/nand/autcpu12.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/spia.c * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) * - * $Id: autcpu12.c,v 1.23 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 0e72153b3297..cd4393ce2562 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -15,8 +15,6 @@ * converted to the generic Reed-Solomon library by Thomas Gleixner * * Interface to generic NAND code for M-Systems DiskOnChip devices - * - * $Id: diskonchip.c,v 1.55 2005/11/07 11:14:30 gleixner Exp $ */ #include diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c index ba67bbec20d3..387e4352903e 100644 --- a/drivers/mtd/nand/edb7312.c +++ b/drivers/mtd/nand/edb7312.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/nand/autcpu12.c * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: edb7312.c,v 1.12 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c index 2d585d2d090c..9e59de501c2e 100644 --- a/drivers/mtd/nand/h1910.c +++ b/drivers/mtd/nand/h1910.c @@ -7,8 +7,6 @@ * Copyright (C) 2002 Marius Gröger (mag@sysgo.de) * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: h1910.c,v 1.6 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 5e121ceaa598..0b1c48595f12 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -6,8 +6,6 @@ * * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de) * - * $Id: nand_bbt.c,v 1.36 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 9003a135e050..918a806a8471 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -9,8 +9,6 @@ * * Copyright (C) 2006 Thomas Gleixner * - * $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $ - * * This file is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 or (at your option) any diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c index a3e3ab0185d5..69ee2c90eb0b 100644 --- a/drivers/mtd/nand/nand_ids.c +++ b/drivers/mtd/nand/nand_ids.c @@ -3,8 +3,6 @@ * * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de) * - * $Id: nand_ids.c,v 1.16 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 68c150c8ff9d..add975a229a7 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -21,8 +21,6 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA - * - * $Id: nandsim.c,v 1.8 2005/03/19 15:33:56 dedekind Exp $ */ #include diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index 082073acf20f..cc8658431851 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/nand/edb7312.c * * - * $Id: ppchameleonevb.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c index 26f88215bc47..a033c4cd8e16 100644 --- a/drivers/mtd/nand/rtc_from4.c +++ b/drivers/mtd/nand/rtc_from4.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/nand/spia.c * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) * - * $Id: rtc_from4.c,v 1.10 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index b34a460ab679..91f42e485520 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -20,8 +20,6 @@ * 20-Oct-2005 BJD Fix timing calculation bug * 14-Jan-2006 BJD Allow clock to be stopped when idle * - * $Id: s3c2410.c,v 1.23 2006/04/01 18:06:29 bjd Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 033f8800b1e6..6dba2fb66ae5 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -3,8 +3,6 @@ * * Copyright (C) 2004 Richard Purdie * - * $Id: sharpsl.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $ - * * Based on Sharp's NAND driver sharp_sl.c * * This program is free software; you can redistribute it and/or modify diff --git a/drivers/mtd/nand/spia.c b/drivers/mtd/nand/spia.c index 1f6d429b1583..0cc6d0acb8fe 100644 --- a/drivers/mtd/nand/spia.c +++ b/drivers/mtd/nand/spia.c @@ -8,8 +8,6 @@ * to controllines (due to change in nand.c) * page_cache added * - * $Id: spia.c,v 1.25 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/toto.c b/drivers/mtd/nand/toto.c index f9e2d4a0ab8c..bbf492e6830d 100644 --- a/drivers/mtd/nand/toto.c +++ b/drivers/mtd/nand/toto.c @@ -14,8 +14,6 @@ * Overview: * This is a device driver for the NAND flash device found on the * TI fido board. It supports 32MiB and 64MiB cards - * - * $Id: toto.c,v 1.5 2005/11/07 11:14:31 gleixner Exp $ */ #include diff --git a/drivers/mtd/nand/ts7250.c b/drivers/mtd/nand/ts7250.c index f40081069ab2..807a72752eeb 100644 --- a/drivers/mtd/nand/ts7250.c +++ b/drivers/mtd/nand/ts7250.c @@ -9,8 +9,6 @@ * Derived from drivers/mtd/nand/autcpu12.c * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: ts7250.c,v 1.4 2004/12/30 22:02:07 joff Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index 0c9ce19ea27a..320b929abe79 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -1,7 +1,6 @@ /* Linux driver for NAND Flash Translation Layer */ /* (c) 1999 Machine Vision Holdings, Inc. */ /* Author: David Woodhouse */ -/* $Id: nftlcore.c,v 1.98 2005/11/07 11:14:21 gleixner Exp $ */ /* The contents of this file are distributed under the GNU General @@ -803,12 +802,8 @@ static struct mtd_blktrans_ops nftl_tr = { .owner = THIS_MODULE, }; -extern char nftlmountrev[]; - static int __init init_nftl(void) { - printk(KERN_INFO "NFTL driver: nftlcore.c $Revision: 1.98 $, nftlmount.c %s\n", nftlmountrev); - return register_mtd_blktrans(&nftl_tr); } diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c index 345e6eff89ce..ccc4f209fbb5 100644 --- a/drivers/mtd/nftlmount.c +++ b/drivers/mtd/nftlmount.c @@ -4,8 +4,6 @@ * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * - * $Id: nftlmount.c,v 1.41 2005/11/07 11:14:21 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -31,8 +29,6 @@ #define SECTORSIZE 512 -char nftlmountrev[]="$Revision: 1.41 $"; - /* find_boot_record: Find the NFTL Media Header and its Spare copy which contains the * various device information of the NFTL partition and Bad Unit Table. Update * the ReplUnitTable[] table accroding to the Bad Unit Table. ReplUnitTable[] diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index 47474903263c..5afa268c02f1 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -1,6 +1,4 @@ /* - * $Id: redboot.c,v 1.21 2006/03/30 18:34:37 bjd Exp $ - * * Parse RedBoot-style Flash Image System (FIS) tables and * produce a Linux partition array to match. */ diff --git a/drivers/mtd/rfd_ftl.c b/drivers/mtd/rfd_ftl.c index c84e45465499..e538c0a72abb 100644 --- a/drivers/mtd/rfd_ftl.c +++ b/drivers/mtd/rfd_ftl.c @@ -3,8 +3,6 @@ * * Copyright (C) 2005 Sean Young * - * $Id: rfd_ftl.c,v 1.8 2006/01/15 12:51:44 sean Exp $ - * * This type of flash translation layer (FTL) is used by the Embedded BIOS * by General Software. It is known as the Resident Flash Disk (RFD), see: * diff --git a/include/linux/jffs2.h b/include/linux/jffs2.h index 6b563cae23df..da720bc3eb15 100644 --- a/include/linux/jffs2.h +++ b/include/linux/jffs2.h @@ -7,9 +7,6 @@ * * For licensing information, see the file 'LICENCE' in the * jffs2 directory. - * - * $Id: jffs2.h,v 1.38 2005/09/26 11:37:23 havasi Exp $ - * */ #ifndef __LINUX_JFFS2_H__ diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index 9a6e2f953cba..310e61606415 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -1,6 +1,4 @@ /* - * $Id: blktrans.h,v 1.6 2005/11/07 11:14:54 gleixner Exp $ - * * (C) 2003 David Woodhouse * * Interface to Linux block layer for MTD 'translation layers'. diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index b0ddf4b25862..d6fb115f5a07 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -1,7 +1,6 @@ /* Common Flash Interface structures * See http://support.intel.com/design/flash/technote/index.htm - * $Id: cfi.h,v 1.57 2005/11/15 23:28:17 tpoynor Exp $ */ #ifndef __MTD_CFI_H__ diff --git a/include/linux/mtd/cfi_endian.h b/include/linux/mtd/cfi_endian.h index 25724f7d3867..d802f7736be3 100644 --- a/include/linux/mtd/cfi_endian.h +++ b/include/linux/mtd/cfi_endian.h @@ -1,8 +1,3 @@ -/* - * $Id: cfi_endian.h,v 1.11 2002/01/30 23:20:48 awozniak Exp $ - * - */ - #include #ifndef CONFIG_MTD_CFI_ADV_OPTIONS diff --git a/include/linux/mtd/concat.h b/include/linux/mtd/concat.h index ed8dc6755219..c02f3d264ecf 100644 --- a/include/linux/mtd/concat.h +++ b/include/linux/mtd/concat.h @@ -4,8 +4,6 @@ * (C) 2002 Robert Kaiser * * This code is GPL - * - * $Id: concat.h,v 1.1 2002/03/08 16:34:36 rkaiser Exp $ */ #ifndef MTD_CONCAT_H diff --git a/include/linux/mtd/doc2000.h b/include/linux/mtd/doc2000.h index 9addd073bf15..0a6d516ab71d 100644 --- a/include/linux/mtd/doc2000.h +++ b/include/linux/mtd/doc2000.h @@ -6,8 +6,6 @@ * Copyright (C) 2002-2003 Greg Ungerer * Copyright (C) 2002-2003 SnapGear Inc * - * $Id: doc2000.h,v 1.25 2005/11/07 11:14:54 gleixner Exp $ - * * Released under GPL */ diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h index 39e7d2a1be9a..08dd131301c1 100644 --- a/include/linux/mtd/flashchip.h +++ b/include/linux/mtd/flashchip.h @@ -5,9 +5,6 @@ * Contains information about the location and state of a given flash device * * (C) 2000 Red Hat. GPLd. - * - * $Id: flashchip.h,v 1.18 2005/11/07 11:14:54 gleixner Exp $ - * */ #ifndef __MTD_FLASHCHIP_H__ diff --git a/include/linux/mtd/ftl.h b/include/linux/mtd/ftl.h index d99609113307..0be442f881dd 100644 --- a/include/linux/mtd/ftl.h +++ b/include/linux/mtd/ftl.h @@ -1,6 +1,4 @@ /* - * $Id: ftl.h,v 1.7 2005/11/07 11:14:54 gleixner Exp $ - * * Derived from (and probably identical to): * ftl.h 1.7 1999/10/25 20:23:17 * diff --git a/include/linux/mtd/gen_probe.h b/include/linux/mtd/gen_probe.h index 256e7342ed1e..df362ddf2949 100644 --- a/include/linux/mtd/gen_probe.h +++ b/include/linux/mtd/gen_probe.h @@ -1,7 +1,6 @@ /* * (C) 2001, 2001 Red Hat, Inc. * GPL'd - * $Id: gen_probe.h,v 1.4 2005/11/07 11:14:54 gleixner Exp $ */ #ifndef __LINUX_MTD_GEN_PROBE_H__ diff --git a/include/linux/mtd/inftl.h b/include/linux/mtd/inftl.h index 85fd041d44ad..64ee53ce95a9 100644 --- a/include/linux/mtd/inftl.h +++ b/include/linux/mtd/inftl.h @@ -2,8 +2,6 @@ * inftl.h -- defines to support the Inverse NAND Flash Translation Layer * * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com) - * - * $Id: inftl.h,v 1.7 2005/06/13 13:08:45 sean Exp $ */ #ifndef __MTD_INFTL_H__ @@ -52,8 +50,6 @@ struct INFTLrecord { int INFTL_mount(struct INFTLrecord *s); int INFTL_formatblock(struct INFTLrecord *s, int block); -extern char inftlmountrev[]; - void INFTL_dumptables(struct INFTLrecord *s); void INFTL_dumpVUchains(struct INFTLrecord *s); diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index a9fae032ba81..85e3939cf487 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -1,6 +1,5 @@ /* Overhauled routines for dealing with different mmap regions of flash */ -/* $Id: map.h,v 1.54 2005/11/07 11:14:54 gleixner Exp $ */ #ifndef __LINUX_MTD_MAP_H__ #define __LINUX_MTD_MAP_H__ diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 245f9098e171..31ed234b2a74 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -1,6 +1,4 @@ /* - * $Id: mtd.h,v 1.61 2005/11/07 11:14:54 gleixner Exp $ - * * Copyright (C) 1999-2003 David Woodhouse et al. * * Released under GPL diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index c42bc7f533a5..1288be7b7740 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -5,8 +5,6 @@ * Steven J. Hill * Thomas Gleixner * - * $Id: nand.h,v 1.74 2005/09/15 13:58:50 vwool Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/include/linux/mtd/nand_ecc.h b/include/linux/mtd/nand_ecc.h index 12c5bc342ead..090da505425d 100644 --- a/include/linux/mtd/nand_ecc.h +++ b/include/linux/mtd/nand_ecc.h @@ -3,8 +3,6 @@ * * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) * - * $Id: nand_ecc.h,v 1.4 2004/06/17 02:35:02 dbrown Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/include/linux/mtd/nftl.h b/include/linux/mtd/nftl.h index 001eec50cac6..dcaf611ed748 100644 --- a/include/linux/mtd/nftl.h +++ b/include/linux/mtd/nftl.h @@ -1,6 +1,4 @@ /* - * $Id: nftl.h,v 1.16 2004/06/30 14:49:00 dbrown Exp $ - * * (C) 1999-2003 David Woodhouse */ diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 7c37d7e55abc..5014f7a9f5df 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -4,8 +4,6 @@ * (C) 2000 Nicolas Pitre * * This code is GPL - * - * $Id: partitions.h,v 1.17 2005/11/07 11:14:55 gleixner Exp $ */ #ifndef MTD_PARTITIONS_H diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h index 0dc07d5f3354..c8e63a5ee72e 100644 --- a/include/linux/mtd/physmap.h +++ b/include/linux/mtd/physmap.h @@ -2,8 +2,6 @@ * For boards with physically mapped flash and using * drivers/mtd/maps/physmap.c mapping driver. * - * $Id: physmap.h,v 1.4 2005/11/07 11:14:55 gleixner Exp $ - * * Copyright (C) 2003 MontaVista Software Inc. * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net * diff --git a/include/linux/mtd/plat-ram.h b/include/linux/mtd/plat-ram.h index 0e37ad07bce2..e07890aff1cf 100644 --- a/include/linux/mtd/plat-ram.h +++ b/include/linux/mtd/plat-ram.h @@ -6,8 +6,6 @@ * * Generic platform device based RAM map * - * $Id: plat-ram.h,v 1.2 2005/01/24 00:37:40 bjd Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/include/linux/mtd/pmc551.h b/include/linux/mtd/pmc551.h index 5cc070c24d88..27ad40aed19f 100644 --- a/include/linux/mtd/pmc551.h +++ b/include/linux/mtd/pmc551.h @@ -1,6 +1,4 @@ /* - * $Id: pmc551.h,v 1.6 2005/11/07 11:14:55 gleixner Exp $ - * * PMC551 PCI Mezzanine Ram Device * * Author: @@ -17,7 +15,7 @@ #include -#define PMC551_VERSION "$Id: pmc551.h,v 1.6 2005/11/07 11:14:55 gleixner Exp $\n"\ +#define PMC551_VERSION \ "Ramix PMC551 PCI Mezzanine Ram Driver. (C) 1999,2000 Nortel Networks.\n" /* diff --git a/include/linux/mtd/xip.h b/include/linux/mtd/xip.h index e9d40bdde48c..36efcba15ecd 100644 --- a/include/linux/mtd/xip.h +++ b/include/linux/mtd/xip.h @@ -11,8 +11,6 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * $Id: xip.h,v 1.5 2005/11/07 11:14:55 gleixner Exp $ */ #ifndef __LINUX_MTD_XIP_H__ diff --git a/include/mtd/inftl-user.h b/include/mtd/inftl-user.h index 9b1e2526b45e..e17eda302b2d 100644 --- a/include/mtd/inftl-user.h +++ b/include/mtd/inftl-user.h @@ -1,6 +1,4 @@ /* - * $Id: inftl-user.h,v 1.2 2005/11/07 11:14:56 gleixner Exp $ - * * Parts of INFTL headers shared with userspace * */ diff --git a/include/mtd/jffs2-user.h b/include/mtd/jffs2-user.h index d508ef0ae091..001685d7fa88 100644 --- a/include/mtd/jffs2-user.h +++ b/include/mtd/jffs2-user.h @@ -1,6 +1,4 @@ /* - * $Id: jffs2-user.h,v 1.1 2004/05/05 11:57:54 dwmw2 Exp $ - * * JFFS2 definitions for use in user space only */ diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h index 615072c4da04..c6c61cd5a254 100644 --- a/include/mtd/mtd-abi.h +++ b/include/mtd/mtd-abi.h @@ -1,6 +1,4 @@ /* - * $Id: mtd-abi.h,v 1.13 2005/11/07 11:14:56 gleixner Exp $ - * * Portions of MTD ABI definition which are shared by kernel and user space */ diff --git a/include/mtd/mtd-user.h b/include/mtd/mtd-user.h index 713f34d3e62e..170ceca3b2d0 100644 --- a/include/mtd/mtd-user.h +++ b/include/mtd/mtd-user.h @@ -1,6 +1,4 @@ /* - * $Id: mtd-user.h,v 1.2 2004/05/05 14:44:57 dwmw2 Exp $ - * * MTD ABI header for use by user space only. */ diff --git a/include/mtd/nftl-user.h b/include/mtd/nftl-user.h index b2bca18e7311..390d21c080aa 100644 --- a/include/mtd/nftl-user.h +++ b/include/mtd/nftl-user.h @@ -1,6 +1,4 @@ /* - * $Id: nftl-user.h,v 1.2 2005/11/07 11:14:56 gleixner Exp $ - * * Parts of NFTL headers shared with userspace * */ -- cgit v1.2.3 From d4f4c0aa8e36f69e46360b3d3569dc15d6099894 Mon Sep 17 00:00:00 2001 From: Håvard Skinnemoen Date: Fri, 6 Jun 2008 18:04:52 +0200 Subject: [MTD] [NAND] rename at91_nand -> atmel_nand: file names and Kconfig MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The AT91 NAND driver needs just a few tiny modifications to work on AVR32 as well. Rename it atmel_nand to reflect this. Also move the ECC register definitions into drivers/mtd/nand since they are only useful to the atmel_nand driver, and get rid of the useless filename at the top of each file. Signed-off-by: Håvard Skinnemoen Signed-off-by: David Woodhouse --- drivers/mtd/nand/Kconfig | 17 +- drivers/mtd/nand/Makefile | 2 +- drivers/mtd/nand/at91_nand.c | 592 ----------------------------------- drivers/mtd/nand/atmel_nand.c | 590 ++++++++++++++++++++++++++++++++++ drivers/mtd/nand/atmel_nand_ecc.h | 36 +++ include/asm-arm/arch-at91/at91_ecc.h | 38 --- 6 files changed, 636 insertions(+), 639 deletions(-) delete mode 100644 drivers/mtd/nand/at91_nand.c create mode 100644 drivers/mtd/nand/atmel_nand.c create mode 100644 drivers/mtd/nand/atmel_nand_ecc.h delete mode 100644 include/asm-arm/arch-at91/at91_ecc.h (limited to 'include') diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 7dea6c3a6603..cdd2952c1533 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -271,7 +271,7 @@ config MTD_NAND_CS553X If you say "m", the module will be called "cs553x_nand.ko". -config MTD_NAND_AT91 +config MTD_NAND_ATMEL bool "Support for NAND Flash / SmartMedia on AT91" depends on ARCH_AT91 help @@ -279,14 +279,15 @@ config MTD_NAND_AT91 on Atmel AT91 processors. choice prompt "ECC management for NAND Flash / SmartMedia on AT91" - depends on MTD_NAND_AT91 + depends on MTD_NAND_ATMEL -config MTD_NAND_AT91_ECC_HW +config MTD_NAND_ATMEL_ECC_HW bool "Hardware ECC" depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 help - Uses hardware ECC provided by the at91sam9260/at91sam9263 chip - instead of software ECC. + Use hardware ECC instead of software ECC when the chip + supports it. + The hardware ECC controller is capable of single bit error correction and 2-bit random detection per page. @@ -296,16 +297,16 @@ config MTD_NAND_AT91_ECC_HW If unsure, say Y -config MTD_NAND_AT91_ECC_SOFT +config MTD_NAND_ATMEL_ECC_SOFT bool "Software ECC" help - Uses software ECC. + Use software ECC. NB : hardware and software ECC schemes are incompatible. If you switch from one to another, you'll have to erase your mtd partition. -config MTD_NAND_AT91_ECC_NONE +config MTD_NAND_ATMEL_ECC_NONE bool "No ECC (testing only, DANGEROUS)" depends on DEBUG_KERNEL help diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index d95a10c51866..d772581de573 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -23,7 +23,7 @@ obj-$(CONFIG_MTD_NAND_TS7250) += ts7250.o obj-$(CONFIG_MTD_NAND_NANDSIM) += nandsim.o obj-$(CONFIG_MTD_NAND_CS553X) += cs553x_nand.o obj-$(CONFIG_MTD_NAND_NDFC) += ndfc.o -obj-$(CONFIG_MTD_NAND_AT91) += at91_nand.o +obj-$(CONFIG_MTD_NAND_ATMEL) += atmel_nand.o obj-$(CONFIG_MTD_NAND_CM_X270) += cmx270_nand.o obj-$(CONFIG_MTD_NAND_BASLER_EXCITE) += excite_nandflash.o obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o diff --git a/drivers/mtd/nand/at91_nand.c b/drivers/mtd/nand/at91_nand.c deleted file mode 100644 index 2dcaeeae2068..000000000000 --- a/drivers/mtd/nand/at91_nand.c +++ /dev/null @@ -1,592 +0,0 @@ -/* - * drivers/mtd/nand/at91_nand.c - * - * Copyright (C) 2003 Rick Bronson - * - * Derived from drivers/mtd/nand/autcpu12.c - * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) - * - * Derived from drivers/mtd/spia.c - * Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com) - * - * - * Add Hardware ECC support for AT91SAM9260 / AT91SAM9263 - * Richard Genoud (richard.genoud@gmail.com), Adeneo Copyright (C) 2007 - * - * Derived from Das U-Boot source code - * (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c) - * (C) Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include - -#include -#include - -#include - -#ifdef CONFIG_MTD_NAND_AT91_ECC_HW -#define hard_ecc 1 -#else -#define hard_ecc 0 -#endif - -#ifdef CONFIG_MTD_NAND_AT91_ECC_NONE -#define no_ecc 1 -#else -#define no_ecc 0 -#endif - -/* Register access macros */ -#define ecc_readl(add, reg) \ - __raw_readl(add + AT91_ECC_##reg) -#define ecc_writel(add, reg, value) \ - __raw_writel((value), add + AT91_ECC_##reg) - -#include /* AT91SAM9260/3 ECC registers */ - -/* oob layout for large page size - * bad block info is on bytes 0 and 1 - * the bytes have to be consecutives to avoid - * several NAND_CMD_RNDOUT during read - */ -static struct nand_ecclayout at91_oobinfo_large = { - .eccbytes = 4, - .eccpos = {60, 61, 62, 63}, - .oobfree = { - {2, 58} - }, -}; - -/* oob layout for small page size - * bad block info is on bytes 4 and 5 - * the bytes have to be consecutives to avoid - * several NAND_CMD_RNDOUT during read - */ -static struct nand_ecclayout at91_oobinfo_small = { - .eccbytes = 4, - .eccpos = {0, 1, 2, 3}, - .oobfree = { - {6, 10} - }, -}; - -struct at91_nand_host { - struct nand_chip nand_chip; - struct mtd_info mtd; - void __iomem *io_base; - struct at91_nand_data *board; - struct device *dev; - void __iomem *ecc; -}; - -/* - * Enable NAND. - */ -static void at91_nand_enable(struct at91_nand_host *host) -{ - if (host->board->enable_pin) - gpio_set_value(host->board->enable_pin, 0); -} - -/* - * Disable NAND. - */ -static void at91_nand_disable(struct at91_nand_host *host) -{ - if (host->board->enable_pin) - gpio_set_value(host->board->enable_pin, 1); -} - -/* - * Hardware specific access to control-lines - */ -static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) -{ - struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; - - if (ctrl & NAND_CTRL_CHANGE) { - if (ctrl & NAND_NCE) - at91_nand_enable(host); - else - at91_nand_disable(host); - } - if (cmd == NAND_CMD_NONE) - return; - - if (ctrl & NAND_CLE) - writeb(cmd, host->io_base + (1 << host->board->cle)); - else - writeb(cmd, host->io_base + (1 << host->board->ale)); -} - -/* - * Read the Device Ready pin. - */ -static int at91_nand_device_ready(struct mtd_info *mtd) -{ - struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; - - return gpio_get_value(host->board->rdy_pin); -} - -/* - * write oob for small pages - */ -static int at91_nand_write_oob_512(struct mtd_info *mtd, - struct nand_chip *chip, int page) -{ - int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; - int eccsize = chip->ecc.size, length = mtd->oobsize; - int len, pos, status = 0; - const uint8_t *bufpoi = chip->oob_poi; - - pos = eccsize + chunk; - - chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page); - len = min_t(int, length, chunk); - chip->write_buf(mtd, bufpoi, len); - bufpoi += len; - length -= len; - if (length > 0) - chip->write_buf(mtd, bufpoi, length); - - chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); - status = chip->waitfunc(mtd, chip); - - return status & NAND_STATUS_FAIL ? -EIO : 0; - -} - -/* - * read oob for small pages - */ -static int at91_nand_read_oob_512(struct mtd_info *mtd, - struct nand_chip *chip, int page, int sndcmd) -{ - if (sndcmd) { - chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); - sndcmd = 0; - } - chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); - return sndcmd; -} - -/* - * Calculate HW ECC - * - * function called after a write - * - * mtd: MTD block structure - * dat: raw data (unused) - * ecc_code: buffer for ECC - */ -static int at91_nand_calculate(struct mtd_info *mtd, - const u_char *dat, unsigned char *ecc_code) -{ - struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; - uint32_t *eccpos = nand_chip->ecc.layout->eccpos; - unsigned int ecc_value; - - /* get the first 2 ECC bytes */ - ecc_value = ecc_readl(host->ecc, PR); - - ecc_code[eccpos[0]] = ecc_value & 0xFF; - ecc_code[eccpos[1]] = (ecc_value >> 8) & 0xFF; - - /* get the last 2 ECC bytes */ - ecc_value = ecc_readl(host->ecc, NPR) & AT91_ECC_NPARITY; - - ecc_code[eccpos[2]] = ecc_value & 0xFF; - ecc_code[eccpos[3]] = (ecc_value >> 8) & 0xFF; - - return 0; -} - -/* - * HW ECC read page function - * - * mtd: mtd info structure - * chip: nand chip info structure - * buf: buffer to store read data - */ -static int at91_nand_read_page(struct mtd_info *mtd, - struct nand_chip *chip, uint8_t *buf) -{ - int eccsize = chip->ecc.size; - int eccbytes = chip->ecc.bytes; - uint32_t *eccpos = chip->ecc.layout->eccpos; - uint8_t *p = buf; - uint8_t *oob = chip->oob_poi; - uint8_t *ecc_pos; - int stat; - - /* read the page */ - chip->read_buf(mtd, p, eccsize); - - /* move to ECC position if needed */ - if (eccpos[0] != 0) { - /* This only works on large pages - * because the ECC controller waits for - * NAND_CMD_RNDOUTSTART after the - * NAND_CMD_RNDOUT. - * anyway, for small pages, the eccpos[0] == 0 - */ - chip->cmdfunc(mtd, NAND_CMD_RNDOUT, - mtd->writesize + eccpos[0], -1); - } - - /* the ECC controller needs to read the ECC just after the data */ - ecc_pos = oob + eccpos[0]; - chip->read_buf(mtd, ecc_pos, eccbytes); - - /* check if there's an error */ - stat = chip->ecc.correct(mtd, p, oob, NULL); - - if (stat < 0) - mtd->ecc_stats.failed++; - else - mtd->ecc_stats.corrected += stat; - - /* get back to oob start (end of page) */ - chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1); - - /* read the oob */ - chip->read_buf(mtd, oob, mtd->oobsize); - - return 0; -} - -/* - * HW ECC Correction - * - * function called after a read - * - * mtd: MTD block structure - * dat: raw data read from the chip - * read_ecc: ECC from the chip (unused) - * isnull: unused - * - * Detect and correct a 1 bit error for a page - */ -static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, - u_char *read_ecc, u_char *isnull) -{ - struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; - unsigned int ecc_status; - unsigned int ecc_word, ecc_bit; - - /* get the status from the Status Register */ - ecc_status = ecc_readl(host->ecc, SR); - - /* if there's no error */ - if (likely(!(ecc_status & AT91_ECC_RECERR))) - return 0; - - /* get error bit offset (4 bits) */ - ecc_bit = ecc_readl(host->ecc, PR) & AT91_ECC_BITADDR; - /* get word address (12 bits) */ - ecc_word = ecc_readl(host->ecc, PR) & AT91_ECC_WORDADDR; - ecc_word >>= 4; - - /* if there are multiple errors */ - if (ecc_status & AT91_ECC_MULERR) { - /* check if it is a freshly erased block - * (filled with 0xff) */ - if ((ecc_bit == AT91_ECC_BITADDR) - && (ecc_word == (AT91_ECC_WORDADDR >> 4))) { - /* the block has just been erased, return OK */ - return 0; - } - /* it doesn't seems to be a freshly - * erased block. - * We can't correct so many errors */ - dev_dbg(host->dev, "at91_nand : multiple errors detected." - " Unable to correct.\n"); - return -EIO; - } - - /* if there's a single bit error : we can correct it */ - if (ecc_status & AT91_ECC_ECCERR) { - /* there's nothing much to do here. - * the bit error is on the ECC itself. - */ - dev_dbg(host->dev, "at91_nand : one bit error on ECC code." - " Nothing to correct\n"); - return 0; - } - - dev_dbg(host->dev, "at91_nand : one bit error on data." - " (word offset in the page :" - " 0x%x bit offset : 0x%x)\n", - ecc_word, ecc_bit); - /* correct the error */ - if (nand_chip->options & NAND_BUSWIDTH_16) { - /* 16 bits words */ - ((unsigned short *) dat)[ecc_word] ^= (1 << ecc_bit); - } else { - /* 8 bits words */ - dat[ecc_word] ^= (1 << ecc_bit); - } - dev_dbg(host->dev, "at91_nand : error corrected\n"); - return 1; -} - -/* - * Enable HW ECC : unsused - */ -static void at91_nand_hwctl(struct mtd_info *mtd, int mode) { ; } - -#ifdef CONFIG_MTD_PARTITIONS -static const char *part_probes[] = { "cmdlinepart", NULL }; -#endif - -/* - * Probe for the NAND device. - */ -static int __init at91_nand_probe(struct platform_device *pdev) -{ - struct at91_nand_host *host; - struct mtd_info *mtd; - struct nand_chip *nand_chip; - struct resource *regs; - struct resource *mem; - int res; - -#ifdef CONFIG_MTD_PARTITIONS - struct mtd_partition *partitions = NULL; - int num_partitions = 0; -#endif - - /* Allocate memory for the device structure (and zero it) */ - host = kzalloc(sizeof(struct at91_nand_host), GFP_KERNEL); - if (!host) { - printk(KERN_ERR "at91_nand: failed to allocate device structure.\n"); - return -ENOMEM; - } - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem) { - printk(KERN_ERR "at91_nand: can't get I/O resource mem\n"); - return -ENXIO; - } - - host->io_base = ioremap(mem->start, mem->end - mem->start + 1); - if (host->io_base == NULL) { - printk(KERN_ERR "at91_nand: ioremap failed\n"); - kfree(host); - return -EIO; - } - - mtd = &host->mtd; - nand_chip = &host->nand_chip; - host->board = pdev->dev.platform_data; - host->dev = &pdev->dev; - - nand_chip->priv = host; /* link the private data structures */ - mtd->priv = nand_chip; - mtd->owner = THIS_MODULE; - - /* Set address of NAND IO lines */ - nand_chip->IO_ADDR_R = host->io_base; - nand_chip->IO_ADDR_W = host->io_base; - nand_chip->cmd_ctrl = at91_nand_cmd_ctrl; - - if (host->board->rdy_pin) - nand_chip->dev_ready = at91_nand_device_ready; - - regs = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!regs && hard_ecc) { - printk(KERN_ERR "at91_nand: can't get I/O resource " - "regs\nFalling back on software ECC\n"); - } - - nand_chip->ecc.mode = NAND_ECC_SOFT; /* enable ECC */ - if (no_ecc) - nand_chip->ecc.mode = NAND_ECC_NONE; - if (hard_ecc && regs) { - host->ecc = ioremap(regs->start, regs->end - regs->start + 1); - if (host->ecc == NULL) { - printk(KERN_ERR "at91_nand: ioremap failed\n"); - res = -EIO; - goto err_ecc_ioremap; - } - nand_chip->ecc.mode = NAND_ECC_HW_SYNDROME; - nand_chip->ecc.calculate = at91_nand_calculate; - nand_chip->ecc.correct = at91_nand_correct; - nand_chip->ecc.hwctl = at91_nand_hwctl; - nand_chip->ecc.read_page = at91_nand_read_page; - nand_chip->ecc.bytes = 4; - nand_chip->ecc.prepad = 0; - nand_chip->ecc.postpad = 0; - } - - nand_chip->chip_delay = 20; /* 20us command delay time */ - - if (host->board->bus_width_16) /* 16-bit bus width */ - nand_chip->options |= NAND_BUSWIDTH_16; - - platform_set_drvdata(pdev, host); - at91_nand_enable(host); - - if (host->board->det_pin) { - if (gpio_get_value(host->board->det_pin)) { - printk ("No SmartMedia card inserted.\n"); - res = ENXIO; - goto out; - } - } - - /* first scan to find the device and get the page size */ - if (nand_scan_ident(mtd, 1)) { - res = -ENXIO; - goto out; - } - - if (nand_chip->ecc.mode == NAND_ECC_HW_SYNDROME) { - /* ECC is calculated for the whole page (1 step) */ - nand_chip->ecc.size = mtd->writesize; - - /* set ECC page size and oob layout */ - switch (mtd->writesize) { - case 512: - nand_chip->ecc.layout = &at91_oobinfo_small; - nand_chip->ecc.read_oob = at91_nand_read_oob_512; - nand_chip->ecc.write_oob = at91_nand_write_oob_512; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_528); - break; - case 1024: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_1056); - break; - case 2048: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_2112); - break; - case 4096: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_4224); - break; - default: - /* page size not handled by HW ECC */ - /* switching back to soft ECC */ - nand_chip->ecc.mode = NAND_ECC_SOFT; - nand_chip->ecc.calculate = NULL; - nand_chip->ecc.correct = NULL; - nand_chip->ecc.hwctl = NULL; - nand_chip->ecc.read_page = NULL; - nand_chip->ecc.postpad = 0; - nand_chip->ecc.prepad = 0; - nand_chip->ecc.bytes = 0; - break; - } - } - - /* second phase scan */ - if (nand_scan_tail(mtd)) { - res = -ENXIO; - goto out; - } - -#ifdef CONFIG_MTD_PARTITIONS -#ifdef CONFIG_MTD_CMDLINE_PARTS - mtd->name = "at91_nand"; - num_partitions = parse_mtd_partitions(mtd, part_probes, - &partitions, 0); -#endif - if (num_partitions <= 0 && host->board->partition_info) - partitions = host->board->partition_info(mtd->size, - &num_partitions); - - if ((!partitions) || (num_partitions == 0)) { - printk(KERN_ERR "at91_nand: No parititions defined, or unsupported device.\n"); - res = ENXIO; - goto release; - } - - res = add_mtd_partitions(mtd, partitions, num_partitions); -#else - res = add_mtd_device(mtd); -#endif - - if (!res) - return res; - -#ifdef CONFIG_MTD_PARTITIONS -release: -#endif - nand_release(mtd); - -out: - iounmap(host->ecc); - -err_ecc_ioremap: - at91_nand_disable(host); - platform_set_drvdata(pdev, NULL); - iounmap(host->io_base); - kfree(host); - return res; -} - -/* - * Remove a NAND device. - */ -static int __devexit at91_nand_remove(struct platform_device *pdev) -{ - struct at91_nand_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = &host->mtd; - - nand_release(mtd); - - at91_nand_disable(host); - - iounmap(host->io_base); - iounmap(host->ecc); - kfree(host); - - return 0; -} - -static struct platform_driver at91_nand_driver = { - .probe = at91_nand_probe, - .remove = at91_nand_remove, - .driver = { - .name = "at91_nand", - .owner = THIS_MODULE, - }, -}; - -static int __init at91_nand_init(void) -{ - return platform_driver_register(&at91_nand_driver); -} - - -static void __exit at91_nand_exit(void) -{ - platform_driver_unregister(&at91_nand_driver); -} - - -module_init(at91_nand_init); -module_exit(at91_nand_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Rick Bronson"); -MODULE_DESCRIPTION("NAND/SmartMedia driver for AT91RM9200 / AT91SAM9"); -MODULE_ALIAS("platform:at91_nand"); diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c new file mode 100644 index 000000000000..51b703155db6 --- /dev/null +++ b/drivers/mtd/nand/atmel_nand.c @@ -0,0 +1,590 @@ +/* + * Copyright (C) 2003 Rick Bronson + * + * Derived from drivers/mtd/nand/autcpu12.c + * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) + * + * Derived from drivers/mtd/spia.c + * Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com) + * + * + * Add Hardware ECC support for AT91SAM9260 / AT91SAM9263 + * Richard Genoud (richard.genoud@gmail.com), Adeneo Copyright (C) 2007 + * + * Derived from Das U-Boot source code + * (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c) + * (C) Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +#include + +#ifdef CONFIG_MTD_NAND_ATMEL_ECC_HW +#define hard_ecc 1 +#else +#define hard_ecc 0 +#endif + +#ifdef CONFIG_MTD_NAND_ATMEL_ECC_NONE +#define no_ecc 1 +#else +#define no_ecc 0 +#endif + +/* Register access macros */ +#define ecc_readl(add, reg) \ + __raw_readl(add + AT91_ECC_##reg) +#define ecc_writel(add, reg, value) \ + __raw_writel((value), add + AT91_ECC_##reg) + +#include "atmel_nand_ecc.h" /* Hardware ECC registers */ + +/* oob layout for large page size + * bad block info is on bytes 0 and 1 + * the bytes have to be consecutives to avoid + * several NAND_CMD_RNDOUT during read + */ +static struct nand_ecclayout at91_oobinfo_large = { + .eccbytes = 4, + .eccpos = {60, 61, 62, 63}, + .oobfree = { + {2, 58} + }, +}; + +/* oob layout for small page size + * bad block info is on bytes 4 and 5 + * the bytes have to be consecutives to avoid + * several NAND_CMD_RNDOUT during read + */ +static struct nand_ecclayout at91_oobinfo_small = { + .eccbytes = 4, + .eccpos = {0, 1, 2, 3}, + .oobfree = { + {6, 10} + }, +}; + +struct at91_nand_host { + struct nand_chip nand_chip; + struct mtd_info mtd; + void __iomem *io_base; + struct at91_nand_data *board; + struct device *dev; + void __iomem *ecc; +}; + +/* + * Enable NAND. + */ +static void at91_nand_enable(struct at91_nand_host *host) +{ + if (host->board->enable_pin) + gpio_set_value(host->board->enable_pin, 0); +} + +/* + * Disable NAND. + */ +static void at91_nand_disable(struct at91_nand_host *host) +{ + if (host->board->enable_pin) + gpio_set_value(host->board->enable_pin, 1); +} + +/* + * Hardware specific access to control-lines + */ +static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) +{ + struct nand_chip *nand_chip = mtd->priv; + struct at91_nand_host *host = nand_chip->priv; + + if (ctrl & NAND_CTRL_CHANGE) { + if (ctrl & NAND_NCE) + at91_nand_enable(host); + else + at91_nand_disable(host); + } + if (cmd == NAND_CMD_NONE) + return; + + if (ctrl & NAND_CLE) + writeb(cmd, host->io_base + (1 << host->board->cle)); + else + writeb(cmd, host->io_base + (1 << host->board->ale)); +} + +/* + * Read the Device Ready pin. + */ +static int at91_nand_device_ready(struct mtd_info *mtd) +{ + struct nand_chip *nand_chip = mtd->priv; + struct at91_nand_host *host = nand_chip->priv; + + return gpio_get_value(host->board->rdy_pin); +} + +/* + * write oob for small pages + */ +static int at91_nand_write_oob_512(struct mtd_info *mtd, + struct nand_chip *chip, int page) +{ + int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; + int eccsize = chip->ecc.size, length = mtd->oobsize; + int len, pos, status = 0; + const uint8_t *bufpoi = chip->oob_poi; + + pos = eccsize + chunk; + + chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page); + len = min_t(int, length, chunk); + chip->write_buf(mtd, bufpoi, len); + bufpoi += len; + length -= len; + if (length > 0) + chip->write_buf(mtd, bufpoi, length); + + chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); + status = chip->waitfunc(mtd, chip); + + return status & NAND_STATUS_FAIL ? -EIO : 0; + +} + +/* + * read oob for small pages + */ +static int at91_nand_read_oob_512(struct mtd_info *mtd, + struct nand_chip *chip, int page, int sndcmd) +{ + if (sndcmd) { + chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); + sndcmd = 0; + } + chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); + return sndcmd; +} + +/* + * Calculate HW ECC + * + * function called after a write + * + * mtd: MTD block structure + * dat: raw data (unused) + * ecc_code: buffer for ECC + */ +static int at91_nand_calculate(struct mtd_info *mtd, + const u_char *dat, unsigned char *ecc_code) +{ + struct nand_chip *nand_chip = mtd->priv; + struct at91_nand_host *host = nand_chip->priv; + uint32_t *eccpos = nand_chip->ecc.layout->eccpos; + unsigned int ecc_value; + + /* get the first 2 ECC bytes */ + ecc_value = ecc_readl(host->ecc, PR); + + ecc_code[eccpos[0]] = ecc_value & 0xFF; + ecc_code[eccpos[1]] = (ecc_value >> 8) & 0xFF; + + /* get the last 2 ECC bytes */ + ecc_value = ecc_readl(host->ecc, NPR) & AT91_ECC_NPARITY; + + ecc_code[eccpos[2]] = ecc_value & 0xFF; + ecc_code[eccpos[3]] = (ecc_value >> 8) & 0xFF; + + return 0; +} + +/* + * HW ECC read page function + * + * mtd: mtd info structure + * chip: nand chip info structure + * buf: buffer to store read data + */ +static int at91_nand_read_page(struct mtd_info *mtd, + struct nand_chip *chip, uint8_t *buf) +{ + int eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + uint32_t *eccpos = chip->ecc.layout->eccpos; + uint8_t *p = buf; + uint8_t *oob = chip->oob_poi; + uint8_t *ecc_pos; + int stat; + + /* read the page */ + chip->read_buf(mtd, p, eccsize); + + /* move to ECC position if needed */ + if (eccpos[0] != 0) { + /* This only works on large pages + * because the ECC controller waits for + * NAND_CMD_RNDOUTSTART after the + * NAND_CMD_RNDOUT. + * anyway, for small pages, the eccpos[0] == 0 + */ + chip->cmdfunc(mtd, NAND_CMD_RNDOUT, + mtd->writesize + eccpos[0], -1); + } + + /* the ECC controller needs to read the ECC just after the data */ + ecc_pos = oob + eccpos[0]; + chip->read_buf(mtd, ecc_pos, eccbytes); + + /* check if there's an error */ + stat = chip->ecc.correct(mtd, p, oob, NULL); + + if (stat < 0) + mtd->ecc_stats.failed++; + else + mtd->ecc_stats.corrected += stat; + + /* get back to oob start (end of page) */ + chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1); + + /* read the oob */ + chip->read_buf(mtd, oob, mtd->oobsize); + + return 0; +} + +/* + * HW ECC Correction + * + * function called after a read + * + * mtd: MTD block structure + * dat: raw data read from the chip + * read_ecc: ECC from the chip (unused) + * isnull: unused + * + * Detect and correct a 1 bit error for a page + */ +static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, + u_char *read_ecc, u_char *isnull) +{ + struct nand_chip *nand_chip = mtd->priv; + struct at91_nand_host *host = nand_chip->priv; + unsigned int ecc_status; + unsigned int ecc_word, ecc_bit; + + /* get the status from the Status Register */ + ecc_status = ecc_readl(host->ecc, SR); + + /* if there's no error */ + if (likely(!(ecc_status & AT91_ECC_RECERR))) + return 0; + + /* get error bit offset (4 bits) */ + ecc_bit = ecc_readl(host->ecc, PR) & AT91_ECC_BITADDR; + /* get word address (12 bits) */ + ecc_word = ecc_readl(host->ecc, PR) & AT91_ECC_WORDADDR; + ecc_word >>= 4; + + /* if there are multiple errors */ + if (ecc_status & AT91_ECC_MULERR) { + /* check if it is a freshly erased block + * (filled with 0xff) */ + if ((ecc_bit == AT91_ECC_BITADDR) + && (ecc_word == (AT91_ECC_WORDADDR >> 4))) { + /* the block has just been erased, return OK */ + return 0; + } + /* it doesn't seems to be a freshly + * erased block. + * We can't correct so many errors */ + dev_dbg(host->dev, "at91_nand : multiple errors detected." + " Unable to correct.\n"); + return -EIO; + } + + /* if there's a single bit error : we can correct it */ + if (ecc_status & AT91_ECC_ECCERR) { + /* there's nothing much to do here. + * the bit error is on the ECC itself. + */ + dev_dbg(host->dev, "at91_nand : one bit error on ECC code." + " Nothing to correct\n"); + return 0; + } + + dev_dbg(host->dev, "at91_nand : one bit error on data." + " (word offset in the page :" + " 0x%x bit offset : 0x%x)\n", + ecc_word, ecc_bit); + /* correct the error */ + if (nand_chip->options & NAND_BUSWIDTH_16) { + /* 16 bits words */ + ((unsigned short *) dat)[ecc_word] ^= (1 << ecc_bit); + } else { + /* 8 bits words */ + dat[ecc_word] ^= (1 << ecc_bit); + } + dev_dbg(host->dev, "at91_nand : error corrected\n"); + return 1; +} + +/* + * Enable HW ECC : unsused + */ +static void at91_nand_hwctl(struct mtd_info *mtd, int mode) { ; } + +#ifdef CONFIG_MTD_PARTITIONS +static const char *part_probes[] = { "cmdlinepart", NULL }; +#endif + +/* + * Probe for the NAND device. + */ +static int __init at91_nand_probe(struct platform_device *pdev) +{ + struct at91_nand_host *host; + struct mtd_info *mtd; + struct nand_chip *nand_chip; + struct resource *regs; + struct resource *mem; + int res; + +#ifdef CONFIG_MTD_PARTITIONS + struct mtd_partition *partitions = NULL; + int num_partitions = 0; +#endif + + /* Allocate memory for the device structure (and zero it) */ + host = kzalloc(sizeof(struct at91_nand_host), GFP_KERNEL); + if (!host) { + printk(KERN_ERR "at91_nand: failed to allocate device structure.\n"); + return -ENOMEM; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + printk(KERN_ERR "at91_nand: can't get I/O resource mem\n"); + return -ENXIO; + } + + host->io_base = ioremap(mem->start, mem->end - mem->start + 1); + if (host->io_base == NULL) { + printk(KERN_ERR "at91_nand: ioremap failed\n"); + kfree(host); + return -EIO; + } + + mtd = &host->mtd; + nand_chip = &host->nand_chip; + host->board = pdev->dev.platform_data; + host->dev = &pdev->dev; + + nand_chip->priv = host; /* link the private data structures */ + mtd->priv = nand_chip; + mtd->owner = THIS_MODULE; + + /* Set address of NAND IO lines */ + nand_chip->IO_ADDR_R = host->io_base; + nand_chip->IO_ADDR_W = host->io_base; + nand_chip->cmd_ctrl = at91_nand_cmd_ctrl; + + if (host->board->rdy_pin) + nand_chip->dev_ready = at91_nand_device_ready; + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!regs && hard_ecc) { + printk(KERN_ERR "at91_nand: can't get I/O resource " + "regs\nFalling back on software ECC\n"); + } + + nand_chip->ecc.mode = NAND_ECC_SOFT; /* enable ECC */ + if (no_ecc) + nand_chip->ecc.mode = NAND_ECC_NONE; + if (hard_ecc && regs) { + host->ecc = ioremap(regs->start, regs->end - regs->start + 1); + if (host->ecc == NULL) { + printk(KERN_ERR "at91_nand: ioremap failed\n"); + res = -EIO; + goto err_ecc_ioremap; + } + nand_chip->ecc.mode = NAND_ECC_HW_SYNDROME; + nand_chip->ecc.calculate = at91_nand_calculate; + nand_chip->ecc.correct = at91_nand_correct; + nand_chip->ecc.hwctl = at91_nand_hwctl; + nand_chip->ecc.read_page = at91_nand_read_page; + nand_chip->ecc.bytes = 4; + nand_chip->ecc.prepad = 0; + nand_chip->ecc.postpad = 0; + } + + nand_chip->chip_delay = 20; /* 20us command delay time */ + + if (host->board->bus_width_16) /* 16-bit bus width */ + nand_chip->options |= NAND_BUSWIDTH_16; + + platform_set_drvdata(pdev, host); + at91_nand_enable(host); + + if (host->board->det_pin) { + if (gpio_get_value(host->board->det_pin)) { + printk ("No SmartMedia card inserted.\n"); + res = ENXIO; + goto out; + } + } + + /* first scan to find the device and get the page size */ + if (nand_scan_ident(mtd, 1)) { + res = -ENXIO; + goto out; + } + + if (nand_chip->ecc.mode == NAND_ECC_HW_SYNDROME) { + /* ECC is calculated for the whole page (1 step) */ + nand_chip->ecc.size = mtd->writesize; + + /* set ECC page size and oob layout */ + switch (mtd->writesize) { + case 512: + nand_chip->ecc.layout = &at91_oobinfo_small; + nand_chip->ecc.read_oob = at91_nand_read_oob_512; + nand_chip->ecc.write_oob = at91_nand_write_oob_512; + ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_528); + break; + case 1024: + nand_chip->ecc.layout = &at91_oobinfo_large; + ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_1056); + break; + case 2048: + nand_chip->ecc.layout = &at91_oobinfo_large; + ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_2112); + break; + case 4096: + nand_chip->ecc.layout = &at91_oobinfo_large; + ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_4224); + break; + default: + /* page size not handled by HW ECC */ + /* switching back to soft ECC */ + nand_chip->ecc.mode = NAND_ECC_SOFT; + nand_chip->ecc.calculate = NULL; + nand_chip->ecc.correct = NULL; + nand_chip->ecc.hwctl = NULL; + nand_chip->ecc.read_page = NULL; + nand_chip->ecc.postpad = 0; + nand_chip->ecc.prepad = 0; + nand_chip->ecc.bytes = 0; + break; + } + } + + /* second phase scan */ + if (nand_scan_tail(mtd)) { + res = -ENXIO; + goto out; + } + +#ifdef CONFIG_MTD_PARTITIONS +#ifdef CONFIG_MTD_CMDLINE_PARTS + mtd->name = "at91_nand"; + num_partitions = parse_mtd_partitions(mtd, part_probes, + &partitions, 0); +#endif + if (num_partitions <= 0 && host->board->partition_info) + partitions = host->board->partition_info(mtd->size, + &num_partitions); + + if ((!partitions) || (num_partitions == 0)) { + printk(KERN_ERR "at91_nand: No parititions defined, or unsupported device.\n"); + res = ENXIO; + goto release; + } + + res = add_mtd_partitions(mtd, partitions, num_partitions); +#else + res = add_mtd_device(mtd); +#endif + + if (!res) + return res; + +#ifdef CONFIG_MTD_PARTITIONS +release: +#endif + nand_release(mtd); + +out: + iounmap(host->ecc); + +err_ecc_ioremap: + at91_nand_disable(host); + platform_set_drvdata(pdev, NULL); + iounmap(host->io_base); + kfree(host); + return res; +} + +/* + * Remove a NAND device. + */ +static int __devexit at91_nand_remove(struct platform_device *pdev) +{ + struct at91_nand_host *host = platform_get_drvdata(pdev); + struct mtd_info *mtd = &host->mtd; + + nand_release(mtd); + + at91_nand_disable(host); + + iounmap(host->io_base); + iounmap(host->ecc); + kfree(host); + + return 0; +} + +static struct platform_driver at91_nand_driver = { + .probe = at91_nand_probe, + .remove = at91_nand_remove, + .driver = { + .name = "at91_nand", + .owner = THIS_MODULE, + }, +}; + +static int __init at91_nand_init(void) +{ + return platform_driver_register(&at91_nand_driver); +} + + +static void __exit at91_nand_exit(void) +{ + platform_driver_unregister(&at91_nand_driver); +} + + +module_init(at91_nand_init); +module_exit(at91_nand_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Rick Bronson"); +MODULE_DESCRIPTION("NAND/SmartMedia driver for AT91 / AVR32"); +MODULE_ALIAS("platform:at91_nand"); diff --git a/drivers/mtd/nand/atmel_nand_ecc.h b/drivers/mtd/nand/atmel_nand_ecc.h new file mode 100644 index 000000000000..170db869aacf --- /dev/null +++ b/drivers/mtd/nand/atmel_nand_ecc.h @@ -0,0 +1,36 @@ +/* + * Error Corrected Code Controller (ECC) - System peripherals regsters. + * Based on AT91SAM9260 datasheet revision B. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef ATMEL_NAND_ECC_H +#define ATMEL_NAND_ECC_H + +#define AT91_ECC_CR 0x00 /* Control register */ +#define AT91_ECC_RST (1 << 0) /* Reset parity */ + +#define AT91_ECC_MR 0x04 /* Mode register */ +#define AT91_ECC_PAGESIZE (3 << 0) /* Page Size */ +#define AT91_ECC_PAGESIZE_528 (0) +#define AT91_ECC_PAGESIZE_1056 (1) +#define AT91_ECC_PAGESIZE_2112 (2) +#define AT91_ECC_PAGESIZE_4224 (3) + +#define AT91_ECC_SR 0x08 /* Status register */ +#define AT91_ECC_RECERR (1 << 0) /* Recoverable Error */ +#define AT91_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */ +#define AT91_ECC_MULERR (1 << 2) /* Multiple Errors */ + +#define AT91_ECC_PR 0x0c /* Parity register */ +#define AT91_ECC_BITADDR (0xf << 0) /* Bit Error Address */ +#define AT91_ECC_WORDADDR (0xfff << 4) /* Word Error Address */ + +#define AT91_ECC_NPR 0x10 /* NParity register */ +#define AT91_ECC_NPARITY (0xffff << 0) /* NParity */ + +#endif diff --git a/include/asm-arm/arch-at91/at91_ecc.h b/include/asm-arm/arch-at91/at91_ecc.h deleted file mode 100644 index 1e5a8caca2d1..000000000000 --- a/include/asm-arm/arch-at91/at91_ecc.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * include/asm-arm/arch-at91/at91_ecc.h - * - * Error Corrected Code Controller (ECC) - System peripherals regsters. - * Based on AT91SAM9260 datasheet revision B. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#ifndef AT91_ECC_H -#define AT91_ECC_H - -#define AT91_ECC_CR 0x00 /* Control register */ -#define AT91_ECC_RST (1 << 0) /* Reset parity */ - -#define AT91_ECC_MR 0x04 /* Mode register */ -#define AT91_ECC_PAGESIZE (3 << 0) /* Page Size */ -#define AT91_ECC_PAGESIZE_528 (0) -#define AT91_ECC_PAGESIZE_1056 (1) -#define AT91_ECC_PAGESIZE_2112 (2) -#define AT91_ECC_PAGESIZE_4224 (3) - -#define AT91_ECC_SR 0x08 /* Status register */ -#define AT91_ECC_RECERR (1 << 0) /* Recoverable Error */ -#define AT91_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */ -#define AT91_ECC_MULERR (1 << 2) /* Multiple Errors */ - -#define AT91_ECC_PR 0x0c /* Parity register */ -#define AT91_ECC_BITADDR (0xf << 0) /* Bit Error Address */ -#define AT91_ECC_WORDADDR (0xfff << 4) /* Word Error Address */ - -#define AT91_ECC_NPR 0x10 /* NParity register */ -#define AT91_ECC_NPARITY (0xffff << 0) /* NParity */ - -#endif -- cgit v1.2.3 From 3c3796cc32b6e53653a5eb868dc959b8c2779db9 Mon Sep 17 00:00:00 2001 From: Håvard Skinnemoen Date: Fri, 6 Jun 2008 18:04:53 +0200 Subject: [MTD] [NAND] rename at91_nand -> atmel_nand: internal symbols MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is basically s/at91_nand/atmel_nand/g with some manual inspection. Signed-off-by: Håvard Skinnemoen Signed-off-by: David Woodhouse --- arch/arm/mach-at91/at91cap9_devices.c | 8 +- arch/arm/mach-at91/at91rm9200_devices.c | 8 +- arch/arm/mach-at91/at91sam9260_devices.c | 8 +- arch/arm/mach-at91/at91sam9261_devices.c | 12 +-- arch/arm/mach-at91/at91sam9263_devices.c | 8 +- arch/arm/mach-at91/at91sam9rl_devices.c | 12 +-- arch/arm/mach-at91/board-cam60.c | 2 +- arch/arm/mach-at91/board-cap9adk.c | 2 +- arch/arm/mach-at91/board-dk.c | 2 +- arch/arm/mach-at91/board-kb9202.c | 2 +- arch/arm/mach-at91/board-sam9-l9260.c | 2 +- arch/arm/mach-at91/board-sam9260ek.c | 2 +- arch/arm/mach-at91/board-sam9261ek.c | 2 +- arch/arm/mach-at91/board-sam9263ek.c | 2 +- arch/arm/mach-at91/board-sam9rlek.c | 2 +- arch/arm/mach-at91/board-yl-9200.c | 2 +- drivers/mtd/nand/atmel_nand.c | 152 +++++++++++++++---------------- drivers/mtd/nand/atmel_nand_ecc.h | 34 +++---- include/asm-arm/arch-at91/board.h | 4 +- 19 files changed, 133 insertions(+), 133 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c index be526746e01e..fe5148e9f0cc 100644 --- a/arch/arm/mach-at91/at91cap9_devices.c +++ b/arch/arm/mach-at91/at91cap9_devices.c @@ -278,7 +278,7 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) -static struct at91_nand_data nand_data; +static struct atmel_nand_data nand_data; #define NAND_BASE AT91_CHIPSELECT_3 @@ -296,7 +296,7 @@ static struct resource nand_resources[] = { }; static struct platform_device at91cap9_nand_device = { - .name = "at91_nand", + .name = "atmel_nand", .id = -1, .dev = { .platform_data = &nand_data, @@ -305,7 +305,7 @@ static struct platform_device at91cap9_nand_device = { .num_resources = ARRAY_SIZE(nand_resources), }; -void __init at91_add_device_nand(struct at91_nand_data *data) +void __init at91_add_device_nand(struct atmel_nand_data *data) { unsigned long csa, mode; @@ -346,7 +346,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) platform_device_register(&at91cap9_nand_device); } #else -void __init at91_add_device_nand(struct at91_nand_data *data) {} +void __init at91_add_device_nand(struct atmel_nand_data *data) {} #endif diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index de19bee83f75..8ced9bc82099 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -369,7 +369,7 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) -static struct at91_nand_data nand_data; +static struct atmel_nand_data nand_data; #define NAND_BASE AT91_CHIPSELECT_3 @@ -382,7 +382,7 @@ static struct resource nand_resources[] = { }; static struct platform_device at91rm9200_nand_device = { - .name = "at91_nand", + .name = "atmel_nand", .id = -1, .dev = { .platform_data = &nand_data, @@ -391,7 +391,7 @@ static struct platform_device at91rm9200_nand_device = { .num_resources = ARRAY_SIZE(nand_resources), }; -void __init at91_add_device_nand(struct at91_nand_data *data) +void __init at91_add_device_nand(struct atmel_nand_data *data) { unsigned int csa; @@ -429,7 +429,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) platform_device_register(&at91rm9200_nand_device); } #else -void __init at91_add_device_nand(struct at91_nand_data *data) {} +void __init at91_add_device_nand(struct atmel_nand_data *data) {} #endif diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index 393a32aefce5..3aa62b1151b8 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -283,7 +283,7 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) -static struct at91_nand_data nand_data; +static struct atmel_nand_data nand_data; #define NAND_BASE AT91_CHIPSELECT_3 @@ -301,7 +301,7 @@ static struct resource nand_resources[] = { }; static struct platform_device at91sam9260_nand_device = { - .name = "at91_nand", + .name = "atmel_nand", .id = -1, .dev = { .platform_data = &nand_data, @@ -310,7 +310,7 @@ static struct platform_device at91sam9260_nand_device = { .num_resources = ARRAY_SIZE(nand_resources), }; -void __init at91_add_device_nand(struct at91_nand_data *data) +void __init at91_add_device_nand(struct atmel_nand_data *data) { unsigned long csa, mode; @@ -351,7 +351,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) platform_device_register(&at91sam9260_nand_device); } #else -void __init at91_add_device_nand(struct at91_nand_data *data) {} +void __init at91_add_device_nand(struct atmel_nand_data *data) {} #endif diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 728bb8f39441..6b9e423ec474 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -199,7 +199,7 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) -static struct at91_nand_data nand_data; +static struct atmel_nand_data nand_data; #define NAND_BASE AT91_CHIPSELECT_3 @@ -211,8 +211,8 @@ static struct resource nand_resources[] = { } }; -static struct platform_device at91_nand_device = { - .name = "at91_nand", +static struct platform_device atmel_nand_device = { + .name = "atmel_nand", .id = -1, .dev = { .platform_data = &nand_data, @@ -221,7 +221,7 @@ static struct platform_device at91_nand_device = { .num_resources = ARRAY_SIZE(nand_resources), }; -void __init at91_add_device_nand(struct at91_nand_data *data) +void __init at91_add_device_nand(struct atmel_nand_data *data) { unsigned long csa, mode; @@ -262,11 +262,11 @@ void __init at91_add_device_nand(struct at91_nand_data *data) at91_set_A_periph(AT91_PIN_PC1, 0); /* NANDWE */ nand_data = *data; - platform_device_register(&at91_nand_device); + platform_device_register(&atmel_nand_device); } #else -void __init at91_add_device_nand(struct at91_nand_data *data) {} +void __init at91_add_device_nand(struct atmel_nand_data *data) {} #endif diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index 719667e25c98..f1dfbfe094a2 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -353,7 +353,7 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) -static struct at91_nand_data nand_data; +static struct atmel_nand_data nand_data; #define NAND_BASE AT91_CHIPSELECT_3 @@ -371,7 +371,7 @@ static struct resource nand_resources[] = { }; static struct platform_device at91sam9263_nand_device = { - .name = "at91_nand", + .name = "atmel_nand", .id = -1, .dev = { .platform_data = &nand_data, @@ -380,7 +380,7 @@ static struct platform_device at91sam9263_nand_device = { .num_resources = ARRAY_SIZE(nand_resources), }; -void __init at91_add_device_nand(struct at91_nand_data *data) +void __init at91_add_device_nand(struct atmel_nand_data *data) { unsigned long csa, mode; @@ -421,7 +421,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) platform_device_register(&at91sam9263_nand_device); } #else -void __init at91_add_device_nand(struct at91_nand_data *data) {} +void __init at91_add_device_nand(struct atmel_nand_data *data) {} #endif diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index 054689804e77..b21f33393269 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -100,7 +100,7 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) -static struct at91_nand_data nand_data; +static struct atmel_nand_data nand_data; #define NAND_BASE AT91_CHIPSELECT_3 @@ -117,8 +117,8 @@ static struct resource nand_resources[] = { } }; -static struct platform_device at91_nand_device = { - .name = "at91_nand", +static struct platform_device atmel_nand_device = { + .name = "atmel_nand", .id = -1, .dev = { .platform_data = &nand_data, @@ -127,7 +127,7 @@ static struct platform_device at91_nand_device = { .num_resources = ARRAY_SIZE(nand_resources), }; -void __init at91_add_device_nand(struct at91_nand_data *data) +void __init at91_add_device_nand(struct atmel_nand_data *data) { unsigned long csa; @@ -164,11 +164,11 @@ void __init at91_add_device_nand(struct at91_nand_data *data) at91_set_A_periph(AT91_PIN_PB5, 0); /* NANDWE */ nand_data = *data; - platform_device_register(&at91_nand_device); + platform_device_register(&atmel_nand_device); } #else -void __init at91_add_device_nand(struct at91_nand_data *data) {} +void __init at91_add_device_nand(struct atmel_nand_data *data) {} #endif diff --git a/arch/arm/mach-at91/board-cam60.c b/arch/arm/mach-at91/board-cam60.c index b22a1a004055..af2c33aff1a8 100644 --- a/arch/arm/mach-at91/board-cam60.c +++ b/arch/arm/mach-at91/board-cam60.c @@ -142,7 +142,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return cam60_nand_partition; } -static struct at91_nand_data __initdata cam60_nand_data = { +static struct atmel_nand_data __initdata cam60_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not there diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c index e5512d1ff217..7144e1a89a2a 100644 --- a/arch/arm/mach-at91/board-cap9adk.c +++ b/arch/arm/mach-at91/board-cap9adk.c @@ -175,7 +175,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return cap9adk_nand_partitions; } -static struct at91_nand_data __initdata cap9adk_nand_data = { +static struct atmel_nand_data __initdata cap9adk_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not connected diff --git a/arch/arm/mach-at91/board-dk.c b/arch/arm/mach-at91/board-dk.c index c1a813c7169b..ffecacb71f89 100644 --- a/arch/arm/mach-at91/board-dk.c +++ b/arch/arm/mach-at91/board-dk.c @@ -150,7 +150,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return dk_nand_partition; } -static struct at91_nand_data __initdata dk_nand_data = { +static struct atmel_nand_data __initdata dk_nand_data = { .ale = 22, .cle = 21, .det_pin = AT91_PIN_PB1, diff --git a/arch/arm/mach-at91/board-kb9202.c b/arch/arm/mach-at91/board-kb9202.c index 4b39b9cda75b..153450f168f2 100644 --- a/arch/arm/mach-at91/board-kb9202.c +++ b/arch/arm/mach-at91/board-kb9202.c @@ -102,7 +102,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return kb9202_nand_partition; } -static struct at91_nand_data __initdata kb9202_nand_data = { +static struct atmel_nand_data __initdata kb9202_nand_data = { .ale = 22, .cle = 21, // .det_pin = ... not there diff --git a/arch/arm/mach-at91/board-sam9-l9260.c b/arch/arm/mach-at91/board-sam9-l9260.c index 8f76af5e219a..57a6221943ed 100644 --- a/arch/arm/mach-at91/board-sam9-l9260.c +++ b/arch/arm/mach-at91/board-sam9-l9260.c @@ -141,7 +141,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return ek_nand_partition; } -static struct at91_nand_data __initdata ek_nand_data = { +static struct atmel_nand_data __initdata ek_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not connected diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c index 4d1d9c777084..6a680795c3c8 100644 --- a/arch/arm/mach-at91/board-sam9260ek.c +++ b/arch/arm/mach-at91/board-sam9260ek.c @@ -178,7 +178,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return ek_nand_partition; } -static struct at91_nand_data __initdata ek_nand_data = { +static struct atmel_nand_data __initdata ek_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not connected diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index 08382c0df221..43dfbd0d543a 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -183,7 +183,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return ek_nand_partition; } -static struct at91_nand_data __initdata ek_nand_data = { +static struct atmel_nand_data __initdata ek_nand_data = { .ale = 22, .cle = 21, // .det_pin = ... not connected diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index b4cd5d0ed597..6605a0980117 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -187,7 +187,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return ek_nand_partition; } -static struct at91_nand_data __initdata ek_nand_data = { +static struct atmel_nand_data __initdata ek_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not connected diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c index ffc0597aee8d..35e69e51f376 100644 --- a/arch/arm/mach-at91/board-sam9rlek.c +++ b/arch/arm/mach-at91/board-sam9rlek.c @@ -88,7 +88,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return ek_nand_partition; } -static struct at91_nand_data __initdata ek_nand_data = { +static struct atmel_nand_data __initdata ek_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not connected diff --git a/arch/arm/mach-at91/board-yl-9200.c b/arch/arm/mach-at91/board-yl-9200.c index b5717108991d..e642b3a8bd10 100755 --- a/arch/arm/mach-at91/board-yl-9200.c +++ b/arch/arm/mach-at91/board-yl-9200.c @@ -251,7 +251,7 @@ static struct mtd_partition * __init nand_partitions(int size, int *num_partitio return yl_9200_nand_partition; } -static struct at91_nand_data __initdata yl_9200_nand_data = { +static struct atmel_nand_data __initdata yl_9200_nand_data = { .ale= 6, .cle= 7, /*.det_pin = AT91_PIN_PCxx,*/ /*we don't have a det pin because NandFlash is fixed to board*/ diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 51b703155db6..675a82ca77f5 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -48,9 +48,9 @@ /* Register access macros */ #define ecc_readl(add, reg) \ - __raw_readl(add + AT91_ECC_##reg) + __raw_readl(add + ATMEL_ECC_##reg) #define ecc_writel(add, reg, value) \ - __raw_writel((value), add + AT91_ECC_##reg) + __raw_writel((value), add + ATMEL_ECC_##reg) #include "atmel_nand_ecc.h" /* Hardware ECC registers */ @@ -59,7 +59,7 @@ * the bytes have to be consecutives to avoid * several NAND_CMD_RNDOUT during read */ -static struct nand_ecclayout at91_oobinfo_large = { +static struct nand_ecclayout atmel_oobinfo_large = { .eccbytes = 4, .eccpos = {60, 61, 62, 63}, .oobfree = { @@ -72,7 +72,7 @@ static struct nand_ecclayout at91_oobinfo_large = { * the bytes have to be consecutives to avoid * several NAND_CMD_RNDOUT during read */ -static struct nand_ecclayout at91_oobinfo_small = { +static struct nand_ecclayout atmel_oobinfo_small = { .eccbytes = 4, .eccpos = {0, 1, 2, 3}, .oobfree = { @@ -80,11 +80,11 @@ static struct nand_ecclayout at91_oobinfo_small = { }, }; -struct at91_nand_host { +struct atmel_nand_host { struct nand_chip nand_chip; struct mtd_info mtd; void __iomem *io_base; - struct at91_nand_data *board; + struct atmel_nand_data *board; struct device *dev; void __iomem *ecc; }; @@ -92,7 +92,7 @@ struct at91_nand_host { /* * Enable NAND. */ -static void at91_nand_enable(struct at91_nand_host *host) +static void atmel_nand_enable(struct atmel_nand_host *host) { if (host->board->enable_pin) gpio_set_value(host->board->enable_pin, 0); @@ -101,7 +101,7 @@ static void at91_nand_enable(struct at91_nand_host *host) /* * Disable NAND. */ -static void at91_nand_disable(struct at91_nand_host *host) +static void atmel_nand_disable(struct atmel_nand_host *host) { if (host->board->enable_pin) gpio_set_value(host->board->enable_pin, 1); @@ -110,16 +110,16 @@ static void at91_nand_disable(struct at91_nand_host *host) /* * Hardware specific access to control-lines */ -static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) +static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; if (ctrl & NAND_CTRL_CHANGE) { if (ctrl & NAND_NCE) - at91_nand_enable(host); + atmel_nand_enable(host); else - at91_nand_disable(host); + atmel_nand_disable(host); } if (cmd == NAND_CMD_NONE) return; @@ -133,10 +133,10 @@ static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) /* * Read the Device Ready pin. */ -static int at91_nand_device_ready(struct mtd_info *mtd) +static int atmel_nand_device_ready(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; return gpio_get_value(host->board->rdy_pin); } @@ -144,7 +144,7 @@ static int at91_nand_device_ready(struct mtd_info *mtd) /* * write oob for small pages */ -static int at91_nand_write_oob_512(struct mtd_info *mtd, +static int atmel_nand_write_oob_512(struct mtd_info *mtd, struct nand_chip *chip, int page) { int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; @@ -172,7 +172,7 @@ static int at91_nand_write_oob_512(struct mtd_info *mtd, /* * read oob for small pages */ -static int at91_nand_read_oob_512(struct mtd_info *mtd, +static int atmel_nand_read_oob_512(struct mtd_info *mtd, struct nand_chip *chip, int page, int sndcmd) { if (sndcmd) { @@ -192,11 +192,11 @@ static int at91_nand_read_oob_512(struct mtd_info *mtd, * dat: raw data (unused) * ecc_code: buffer for ECC */ -static int at91_nand_calculate(struct mtd_info *mtd, +static int atmel_nand_calculate(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; uint32_t *eccpos = nand_chip->ecc.layout->eccpos; unsigned int ecc_value; @@ -207,7 +207,7 @@ static int at91_nand_calculate(struct mtd_info *mtd, ecc_code[eccpos[1]] = (ecc_value >> 8) & 0xFF; /* get the last 2 ECC bytes */ - ecc_value = ecc_readl(host->ecc, NPR) & AT91_ECC_NPARITY; + ecc_value = ecc_readl(host->ecc, NPR) & ATMEL_ECC_NPARITY; ecc_code[eccpos[2]] = ecc_value & 0xFF; ecc_code[eccpos[3]] = (ecc_value >> 8) & 0xFF; @@ -222,7 +222,7 @@ static int at91_nand_calculate(struct mtd_info *mtd, * chip: nand chip info structure * buf: buffer to store read data */ -static int at91_nand_read_page(struct mtd_info *mtd, +static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf) { int eccsize = chip->ecc.size; @@ -281,11 +281,11 @@ static int at91_nand_read_page(struct mtd_info *mtd, * * Detect and correct a 1 bit error for a page */ -static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, +static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *isnull) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; unsigned int ecc_status; unsigned int ecc_word, ecc_bit; @@ -293,43 +293,43 @@ static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, ecc_status = ecc_readl(host->ecc, SR); /* if there's no error */ - if (likely(!(ecc_status & AT91_ECC_RECERR))) + if (likely(!(ecc_status & ATMEL_ECC_RECERR))) return 0; /* get error bit offset (4 bits) */ - ecc_bit = ecc_readl(host->ecc, PR) & AT91_ECC_BITADDR; + ecc_bit = ecc_readl(host->ecc, PR) & ATMEL_ECC_BITADDR; /* get word address (12 bits) */ - ecc_word = ecc_readl(host->ecc, PR) & AT91_ECC_WORDADDR; + ecc_word = ecc_readl(host->ecc, PR) & ATMEL_ECC_WORDADDR; ecc_word >>= 4; /* if there are multiple errors */ - if (ecc_status & AT91_ECC_MULERR) { + if (ecc_status & ATMEL_ECC_MULERR) { /* check if it is a freshly erased block * (filled with 0xff) */ - if ((ecc_bit == AT91_ECC_BITADDR) - && (ecc_word == (AT91_ECC_WORDADDR >> 4))) { + if ((ecc_bit == ATMEL_ECC_BITADDR) + && (ecc_word == (ATMEL_ECC_WORDADDR >> 4))) { /* the block has just been erased, return OK */ return 0; } /* it doesn't seems to be a freshly * erased block. * We can't correct so many errors */ - dev_dbg(host->dev, "at91_nand : multiple errors detected." + dev_dbg(host->dev, "atmel_nand : multiple errors detected." " Unable to correct.\n"); return -EIO; } /* if there's a single bit error : we can correct it */ - if (ecc_status & AT91_ECC_ECCERR) { + if (ecc_status & ATMEL_ECC_ECCERR) { /* there's nothing much to do here. * the bit error is on the ECC itself. */ - dev_dbg(host->dev, "at91_nand : one bit error on ECC code." + dev_dbg(host->dev, "atmel_nand : one bit error on ECC code." " Nothing to correct\n"); return 0; } - dev_dbg(host->dev, "at91_nand : one bit error on data." + dev_dbg(host->dev, "atmel_nand : one bit error on data." " (word offset in the page :" " 0x%x bit offset : 0x%x)\n", ecc_word, ecc_bit); @@ -341,14 +341,14 @@ static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, /* 8 bits words */ dat[ecc_word] ^= (1 << ecc_bit); } - dev_dbg(host->dev, "at91_nand : error corrected\n"); + dev_dbg(host->dev, "atmel_nand : error corrected\n"); return 1; } /* * Enable HW ECC : unsused */ -static void at91_nand_hwctl(struct mtd_info *mtd, int mode) { ; } +static void atmel_nand_hwctl(struct mtd_info *mtd, int mode) { ; } #ifdef CONFIG_MTD_PARTITIONS static const char *part_probes[] = { "cmdlinepart", NULL }; @@ -357,9 +357,9 @@ static const char *part_probes[] = { "cmdlinepart", NULL }; /* * Probe for the NAND device. */ -static int __init at91_nand_probe(struct platform_device *pdev) +static int __init atmel_nand_probe(struct platform_device *pdev) { - struct at91_nand_host *host; + struct atmel_nand_host *host; struct mtd_info *mtd; struct nand_chip *nand_chip; struct resource *regs; @@ -372,21 +372,21 @@ static int __init at91_nand_probe(struct platform_device *pdev) #endif /* Allocate memory for the device structure (and zero it) */ - host = kzalloc(sizeof(struct at91_nand_host), GFP_KERNEL); + host = kzalloc(sizeof(struct atmel_nand_host), GFP_KERNEL); if (!host) { - printk(KERN_ERR "at91_nand: failed to allocate device structure.\n"); + printk(KERN_ERR "atmel_nand: failed to allocate device structure.\n"); return -ENOMEM; } mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem) { - printk(KERN_ERR "at91_nand: can't get I/O resource mem\n"); + printk(KERN_ERR "atmel_nand: can't get I/O resource mem\n"); return -ENXIO; } host->io_base = ioremap(mem->start, mem->end - mem->start + 1); if (host->io_base == NULL) { - printk(KERN_ERR "at91_nand: ioremap failed\n"); + printk(KERN_ERR "atmel_nand: ioremap failed\n"); kfree(host); return -EIO; } @@ -403,14 +403,14 @@ static int __init at91_nand_probe(struct platform_device *pdev) /* Set address of NAND IO lines */ nand_chip->IO_ADDR_R = host->io_base; nand_chip->IO_ADDR_W = host->io_base; - nand_chip->cmd_ctrl = at91_nand_cmd_ctrl; + nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl; if (host->board->rdy_pin) - nand_chip->dev_ready = at91_nand_device_ready; + nand_chip->dev_ready = atmel_nand_device_ready; regs = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (!regs && hard_ecc) { - printk(KERN_ERR "at91_nand: can't get I/O resource " + printk(KERN_ERR "atmel_nand: can't get I/O resource " "regs\nFalling back on software ECC\n"); } @@ -420,15 +420,15 @@ static int __init at91_nand_probe(struct platform_device *pdev) if (hard_ecc && regs) { host->ecc = ioremap(regs->start, regs->end - regs->start + 1); if (host->ecc == NULL) { - printk(KERN_ERR "at91_nand: ioremap failed\n"); + printk(KERN_ERR "atmel_nand: ioremap failed\n"); res = -EIO; goto err_ecc_ioremap; } nand_chip->ecc.mode = NAND_ECC_HW_SYNDROME; - nand_chip->ecc.calculate = at91_nand_calculate; - nand_chip->ecc.correct = at91_nand_correct; - nand_chip->ecc.hwctl = at91_nand_hwctl; - nand_chip->ecc.read_page = at91_nand_read_page; + nand_chip->ecc.calculate = atmel_nand_calculate; + nand_chip->ecc.correct = atmel_nand_correct; + nand_chip->ecc.hwctl = atmel_nand_hwctl; + nand_chip->ecc.read_page = atmel_nand_read_page; nand_chip->ecc.bytes = 4; nand_chip->ecc.prepad = 0; nand_chip->ecc.postpad = 0; @@ -440,7 +440,7 @@ static int __init at91_nand_probe(struct platform_device *pdev) nand_chip->options |= NAND_BUSWIDTH_16; platform_set_drvdata(pdev, host); - at91_nand_enable(host); + atmel_nand_enable(host); if (host->board->det_pin) { if (gpio_get_value(host->board->det_pin)) { @@ -463,22 +463,22 @@ static int __init at91_nand_probe(struct platform_device *pdev) /* set ECC page size and oob layout */ switch (mtd->writesize) { case 512: - nand_chip->ecc.layout = &at91_oobinfo_small; - nand_chip->ecc.read_oob = at91_nand_read_oob_512; - nand_chip->ecc.write_oob = at91_nand_write_oob_512; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_528); + nand_chip->ecc.layout = &atmel_oobinfo_small; + nand_chip->ecc.read_oob = atmel_nand_read_oob_512; + nand_chip->ecc.write_oob = atmel_nand_write_oob_512; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_528); break; case 1024: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_1056); + nand_chip->ecc.layout = &atmel_oobinfo_large; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_1056); break; case 2048: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_2112); + nand_chip->ecc.layout = &atmel_oobinfo_large; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_2112); break; case 4096: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_4224); + nand_chip->ecc.layout = &atmel_oobinfo_large; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_4224); break; default: /* page size not handled by HW ECC */ @@ -503,7 +503,7 @@ static int __init at91_nand_probe(struct platform_device *pdev) #ifdef CONFIG_MTD_PARTITIONS #ifdef CONFIG_MTD_CMDLINE_PARTS - mtd->name = "at91_nand"; + mtd->name = "atmel_nand"; num_partitions = parse_mtd_partitions(mtd, part_probes, &partitions, 0); #endif @@ -512,7 +512,7 @@ static int __init at91_nand_probe(struct platform_device *pdev) &num_partitions); if ((!partitions) || (num_partitions == 0)) { - printk(KERN_ERR "at91_nand: No parititions defined, or unsupported device.\n"); + printk(KERN_ERR "atmel_nand: No parititions defined, or unsupported device.\n"); res = ENXIO; goto release; } @@ -534,7 +534,7 @@ out: iounmap(host->ecc); err_ecc_ioremap: - at91_nand_disable(host); + atmel_nand_disable(host); platform_set_drvdata(pdev, NULL); iounmap(host->io_base); kfree(host); @@ -544,14 +544,14 @@ err_ecc_ioremap: /* * Remove a NAND device. */ -static int __devexit at91_nand_remove(struct platform_device *pdev) +static int __devexit atmel_nand_remove(struct platform_device *pdev) { - struct at91_nand_host *host = platform_get_drvdata(pdev); + struct atmel_nand_host *host = platform_get_drvdata(pdev); struct mtd_info *mtd = &host->mtd; nand_release(mtd); - at91_nand_disable(host); + atmel_nand_disable(host); iounmap(host->io_base); iounmap(host->ecc); @@ -560,31 +560,31 @@ static int __devexit at91_nand_remove(struct platform_device *pdev) return 0; } -static struct platform_driver at91_nand_driver = { - .probe = at91_nand_probe, - .remove = at91_nand_remove, +static struct platform_driver atmel_nand_driver = { + .probe = atmel_nand_probe, + .remove = atmel_nand_remove, .driver = { - .name = "at91_nand", + .name = "atmel_nand", .owner = THIS_MODULE, }, }; -static int __init at91_nand_init(void) +static int __init atmel_nand_init(void) { - return platform_driver_register(&at91_nand_driver); + return platform_driver_register(&atmel_nand_driver); } -static void __exit at91_nand_exit(void) +static void __exit atmel_nand_exit(void) { - platform_driver_unregister(&at91_nand_driver); + platform_driver_unregister(&atmel_nand_driver); } -module_init(at91_nand_init); -module_exit(at91_nand_exit); +module_init(atmel_nand_init); +module_exit(atmel_nand_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Rick Bronson"); MODULE_DESCRIPTION("NAND/SmartMedia driver for AT91 / AVR32"); -MODULE_ALIAS("platform:at91_nand"); +MODULE_ALIAS("platform:atmel_nand"); diff --git a/drivers/mtd/nand/atmel_nand_ecc.h b/drivers/mtd/nand/atmel_nand_ecc.h index 170db869aacf..1ee7f993db1c 100644 --- a/drivers/mtd/nand/atmel_nand_ecc.h +++ b/drivers/mtd/nand/atmel_nand_ecc.h @@ -11,26 +11,26 @@ #ifndef ATMEL_NAND_ECC_H #define ATMEL_NAND_ECC_H -#define AT91_ECC_CR 0x00 /* Control register */ -#define AT91_ECC_RST (1 << 0) /* Reset parity */ +#define ATMEL_ECC_CR 0x00 /* Control register */ +#define ATMEL_ECC_RST (1 << 0) /* Reset parity */ -#define AT91_ECC_MR 0x04 /* Mode register */ -#define AT91_ECC_PAGESIZE (3 << 0) /* Page Size */ -#define AT91_ECC_PAGESIZE_528 (0) -#define AT91_ECC_PAGESIZE_1056 (1) -#define AT91_ECC_PAGESIZE_2112 (2) -#define AT91_ECC_PAGESIZE_4224 (3) +#define ATMEL_ECC_MR 0x04 /* Mode register */ +#define ATMEL_ECC_PAGESIZE (3 << 0) /* Page Size */ +#define ATMEL_ECC_PAGESIZE_528 (0) +#define ATMEL_ECC_PAGESIZE_1056 (1) +#define ATMEL_ECC_PAGESIZE_2112 (2) +#define ATMEL_ECC_PAGESIZE_4224 (3) -#define AT91_ECC_SR 0x08 /* Status register */ -#define AT91_ECC_RECERR (1 << 0) /* Recoverable Error */ -#define AT91_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */ -#define AT91_ECC_MULERR (1 << 2) /* Multiple Errors */ +#define ATMEL_ECC_SR 0x08 /* Status register */ +#define ATMEL_ECC_RECERR (1 << 0) /* Recoverable Error */ +#define ATMEL_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */ +#define ATMEL_ECC_MULERR (1 << 2) /* Multiple Errors */ -#define AT91_ECC_PR 0x0c /* Parity register */ -#define AT91_ECC_BITADDR (0xf << 0) /* Bit Error Address */ -#define AT91_ECC_WORDADDR (0xfff << 4) /* Word Error Address */ +#define ATMEL_ECC_PR 0x0c /* Parity register */ +#define ATMEL_ECC_BITADDR (0xf << 0) /* Bit Error Address */ +#define ATMEL_ECC_WORDADDR (0xfff << 4) /* Word Error Address */ -#define AT91_ECC_NPR 0x10 /* NParity register */ -#define AT91_ECC_NPARITY (0xffff << 0) /* NParity */ +#define ATMEL_ECC_NPR 0x10 /* NParity register */ +#define ATMEL_ECC_NPARITY (0xffff << 0) /* NParity */ #endif diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h index dc189f01c5b3..6296922a6843 100644 --- a/include/asm-arm/arch-at91/board.h +++ b/include/asm-arm/arch-at91/board.h @@ -85,7 +85,7 @@ struct at91_usbh_data { extern void __init at91_add_device_usbh(struct at91_usbh_data *data); /* NAND / SmartMedia */ -struct at91_nand_data { +struct atmel_nand_data { u8 enable_pin; /* chip enable */ u8 det_pin; /* card detect */ u8 rdy_pin; /* ready/busy */ @@ -94,7 +94,7 @@ struct at91_nand_data { u8 bus_width_16; /* buswidth is 16 bit */ struct mtd_partition* (*partition_info)(int, int*); }; -extern void __init at91_add_device_nand(struct at91_nand_data *data); +extern void __init at91_add_device_nand(struct atmel_nand_data *data); /* I2C*/ extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices); -- cgit v1.2.3 From 62090a08aba579e6c69319fac4d4a1f806f26400 Mon Sep 17 00:00:00 2001 From: Håvard Skinnemoen Date: Fri, 6 Jun 2008 18:04:56 +0200 Subject: [MTD] [NAND] avr32: atmel_nand platform code for AT32AP700x MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This function initializes and adds a platform_device for a NAND flash interface on SMC chip select 3. Signed-off-by: Håvard Skinnemoen Signed-off-by: David Woodhouse --- arch/avr32/mach-at32ap/at32ap700x.c | 52 +++++++++++++++++++++++++++++++++++ include/asm-avr32/arch-at32ap/board.h | 13 +++++++++ 2 files changed, 65 insertions(+) (limited to 'include') diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c index 0f24b4f85c17..b65d3e0667a8 100644 --- a/arch/avr32/mach-at32ap/at32ap700x.c +++ b/arch/avr32/mach-at32ap/at32ap700x.c @@ -1729,6 +1729,58 @@ fail: } #endif +/* -------------------------------------------------------------------- + * NAND Flash / SmartMedia + * -------------------------------------------------------------------- */ +static struct resource smc_cs3_resource[] __initdata = { + { + .start = 0x0c000000, + .end = 0x0fffffff, + .flags = IORESOURCE_MEM, + }, { + .start = 0xfff03c00, + .end = 0xfff03fff, + .flags = IORESOURCE_MEM, + }, +}; + +struct platform_device *__init +at32_add_device_nand(unsigned int id, struct atmel_nand_data *data) +{ + struct platform_device *pdev; + + if (id != 0 || !data) + return NULL; + + pdev = platform_device_alloc("atmel_nand", id); + if (!pdev) + goto fail; + + if (platform_device_add_resources(pdev, smc_cs3_resource, + ARRAY_SIZE(smc_cs3_resource))) + goto fail; + + if (platform_device_add_data(pdev, data, + sizeof(struct atmel_nand_data))) + goto fail; + + set_ebi_sfr_bits(HMATRIX_BIT(CS3A)); + if (data->enable_pin) + at32_select_gpio(data->enable_pin, + AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); + if (data->rdy_pin) + at32_select_gpio(data->rdy_pin, 0); + if (data->det_pin) + at32_select_gpio(data->det_pin, 0); + + platform_device_add(pdev); + return pdev; + +fail: + platform_device_put(pdev); + return NULL; +} + /* -------------------------------------------------------------------- * AC97C * -------------------------------------------------------------------- */ diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h index a4e2d28bfb58..cc5906cd7419 100644 --- a/include/asm-avr32/arch-at32ap/board.h +++ b/include/asm-avr32/arch-at32ap/board.h @@ -85,4 +85,17 @@ struct platform_device * at32_add_device_cf(unsigned int id, unsigned int extint, struct cf_platform_data *data); +/* NAND / SmartMedia */ +struct atmel_nand_data { + int enable_pin; /* chip enable */ + int det_pin; /* card detect */ + int rdy_pin; /* ready/busy */ + u8 ale; /* address line number connected to ALE */ + u8 cle; /* address line number connected to CLE */ + u8 bus_width_16; /* buswidth is 16 bit */ + struct mtd_partition *(*partition_info)(int size, int *num_partitions); +}; +struct platform_device * +at32_add_device_nand(unsigned int id, struct atmel_nand_data *data); + #endif /* __ASM_ARCH_BOARD_H */ -- cgit v1.2.3 From a0da84f35b25875870270d16b6eccda4884d61a7 Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Sat, 28 Jun 2008 08:31:22 +1000 Subject: Improve setting of "events_cleared" for write-intent bitmaps. When an array is degraded, bits in the write-intent bitmap are not cleared, so that if the missing device is re-added, it can be synced by only updated those parts of the device that have changed since it was removed. The enable this a 'events_cleared' value is stored. It is the event counter for the array the last time that any bits were cleared. Sometimes - if a device disappears from an array while it is 'clean' - the events_cleared value gets updated incorrectly (there are subtle ordering issues between updateing events in the main metadata and the bitmap metadata) resulting in the missing device appearing to require a full resync when it is re-added. With this patch, we update events_cleared precisely when we are about to clear a bit in the bitmap. We record events_cleared when we clear the bit internally, and copy that to the superblock which is written out before the bit on storage. This makes it more "obviously correct". We also need to update events_cleared when the event_count is going backwards (as happens on a dirty->clean transition of a non-degraded array). Thanks to Mike Snitzer for identifying this problem and testing early "fixes". Cc: "Mike Snitzer" Signed-off-by: Neil Brown --- drivers/md/bitmap.c | 29 ++++++++++++++++++++++++----- include/linux/raid/bitmap.h | 1 + 2 files changed, 25 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index b26927ce889c..dedba16d42f7 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -454,8 +454,11 @@ void bitmap_update_sb(struct bitmap *bitmap) spin_unlock_irqrestore(&bitmap->lock, flags); sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0); sb->events = cpu_to_le64(bitmap->mddev->events); - if (!bitmap->mddev->degraded) - sb->events_cleared = cpu_to_le64(bitmap->mddev->events); + if (bitmap->mddev->events < bitmap->events_cleared) { + /* rocking back to read-only */ + bitmap->events_cleared = bitmap->mddev->events; + sb->events_cleared = cpu_to_le64(bitmap->events_cleared); + } kunmap_atomic(sb, KM_USER0); write_page(bitmap, bitmap->sb_page, 1); } @@ -1085,9 +1088,19 @@ void bitmap_daemon_work(struct bitmap *bitmap) } else spin_unlock_irqrestore(&bitmap->lock, flags); lastpage = page; -/* - printk("bitmap clean at page %lu\n", j); -*/ + + /* We are possibly going to clear some bits, so make + * sure that events_cleared is up-to-date. + */ + if (bitmap->need_sync) { + bitmap_super_t *sb; + bitmap->need_sync = 0; + sb = kmap_atomic(bitmap->sb_page, KM_USER0); + sb->events_cleared = + cpu_to_le64(bitmap->events_cleared); + kunmap_atomic(sb, KM_USER0); + write_page(bitmap, bitmap->sb_page, 1); + } spin_lock_irqsave(&bitmap->lock, flags); clear_page_attr(bitmap, page, BITMAP_PAGE_CLEAN); } @@ -1257,6 +1270,12 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto return; } + if (success && + bitmap->events_cleared < bitmap->mddev->events) { + bitmap->events_cleared = bitmap->mddev->events; + bitmap->need_sync = 1; + } + if (!success && ! (*bmc & NEEDED_MASK)) *bmc |= NEEDED_MASK; diff --git a/include/linux/raid/bitmap.h b/include/linux/raid/bitmap.h index 78bfdea24a8e..e98900671ca9 100644 --- a/include/linux/raid/bitmap.h +++ b/include/linux/raid/bitmap.h @@ -221,6 +221,7 @@ struct bitmap { unsigned long syncchunk; __u64 events_cleared; + int need_sync; /* bitmap spinlock */ spinlock_t lock; -- cgit v1.2.3 From 5e96ee65c8bd629ce093da67a066d3946468298a Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Sat, 28 Jun 2008 08:31:24 +1000 Subject: Allow setting start point for requested check/repair This makes it possible to just resync a small part of an array. e.g. if a drive reports that it has questionable sectors, a 'repair' of just the region covering those sectors will cause them to be read and, if there is an error, re-written with correct data. Signed-off-by: Neil Brown --- drivers/md/md.c | 47 ++++++++++++++++++++++++++++++++++++++++++----- include/linux/raid/md_k.h | 2 ++ 2 files changed, 44 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/drivers/md/md.c b/drivers/md/md.c index 2580ac1b9b0f..261322722c19 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -278,6 +278,7 @@ static mddev_t * mddev_find(dev_t unit) init_waitqueue_head(&new->sb_wait); init_waitqueue_head(&new->recovery_wait); new->reshape_position = MaxSector; + new->resync_min = 0; new->resync_max = MaxSector; new->level = LEVEL_NONE; @@ -3074,6 +3075,36 @@ sync_completed_show(mddev_t *mddev, char *page) static struct md_sysfs_entry md_sync_completed = __ATTR_RO(sync_completed); +static ssize_t +min_sync_show(mddev_t *mddev, char *page) +{ + return sprintf(page, "%llu\n", + (unsigned long long)mddev->resync_min); +} +static ssize_t +min_sync_store(mddev_t *mddev, const char *buf, size_t len) +{ + unsigned long long min; + if (strict_strtoull(buf, 10, &min)) + return -EINVAL; + if (min > mddev->resync_max) + return -EINVAL; + if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) + return -EBUSY; + + /* Must be a multiple of chunk_size */ + if (mddev->chunk_size) { + if (min & (sector_t)((mddev->chunk_size>>9)-1)) + return -EINVAL; + } + mddev->resync_min = min; + + return len; +} + +static struct md_sysfs_entry md_min_sync = +__ATTR(sync_min, S_IRUGO|S_IWUSR, min_sync_show, min_sync_store); + static ssize_t max_sync_show(mddev_t *mddev, char *page) { @@ -3089,9 +3120,10 @@ max_sync_store(mddev_t *mddev, const char *buf, size_t len) if (strncmp(buf, "max", 3) == 0) mddev->resync_max = MaxSector; else { - char *ep; - unsigned long long max = simple_strtoull(buf, &ep, 10); - if (ep == buf || (*ep != 0 && *ep != '\n')) + unsigned long long max; + if (strict_strtoull(buf, 10, &max)) + return -EINVAL; + if (max < mddev->resync_min) return -EINVAL; if (max < mddev->resync_max && test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) @@ -3222,6 +3254,7 @@ static struct attribute *md_redundancy_attrs[] = { &md_sync_speed.attr, &md_sync_force_parallel.attr, &md_sync_completed.attr, + &md_min_sync.attr, &md_max_sync.attr, &md_suspend_lo.attr, &md_suspend_hi.attr, @@ -3777,6 +3810,7 @@ static int do_md_stop(mddev_t * mddev, int mode) mddev->size = 0; mddev->raid_disks = 0; mddev->recovery_cp = 0; + mddev->resync_min = 0; mddev->resync_max = MaxSector; mddev->reshape_position = MaxSector; mddev->external = 0; @@ -5625,9 +5659,11 @@ void md_do_sync(mddev_t *mddev) max_sectors = mddev->resync_max_sectors; mddev->resync_mismatches = 0; /* we don't use the checkpoint if there's a bitmap */ - if (!mddev->bitmap && - !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) + if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) + j = mddev->resync_min; + else if (!mddev->bitmap) j = mddev->recovery_cp; + } else if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) max_sectors = mddev->size << 1; else { @@ -5796,6 +5832,7 @@ void md_do_sync(mddev_t *mddev) skip: mddev->curr_resync = 0; + mddev->resync_min = 0; mddev->resync_max = MaxSector; sysfs_notify(&mddev->kobj, NULL, "sync_completed"); wake_up(&resync_wait); diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 3dea9f545c8f..780e0613e6d5 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -227,6 +227,8 @@ struct mddev_s atomic_t recovery_active; /* blocks scheduled, but not written */ wait_queue_head_t recovery_wait; sector_t recovery_cp; + sector_t resync_min; /* user requested sync + * starts here */ sector_t resync_max; /* resync should pause * when it gets here */ -- cgit v1.2.3 From 72a23c211e4587859d5bf61ac4962d76e593fb02 Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Sat, 28 Jun 2008 08:31:41 +1000 Subject: Make sure all changes to md/sync_action are notified. When the 'resync' thread starts or stops, when we explicitly set sync_action, or when we determine that there is definitely nothing to do, we notify sync_action. To stop "sync_action" from occasionally showing the wrong value, we introduce a new flags - MD_RECOVERY_RECOVER - to say that a recovery is probably needed or happening, and we make sure that we set MD_RECOVERY_RUNNING before clearing MD_RECOVERY_NEEDED. Signed-off-by: Neil Brown --- Documentation/md.txt | 6 ++++++ drivers/md/md.c | 34 ++++++++++++++++++++++++++++------ include/linux/raid/md_k.h | 2 ++ 3 files changed, 36 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/Documentation/md.txt b/Documentation/md.txt index dca97ba4944a..c05bfb55659e 100644 --- a/Documentation/md.txt +++ b/Documentation/md.txt @@ -386,6 +386,12 @@ also have 'check' and 'repair' will start the appropriate process providing the current state is 'idle'. + This file responds to select/poll. Any important change in the value + triggers a poll event. Sometimes the value will briefly be + "recover" if a recovery seems to be needed, but cannot be + achieved. In that case, the transition to "recover" isn't + notified, but the transition away is. + mismatch_count When performing 'check' and 'repair', and possibly when performing 'resync', md will count the number of errors that are diff --git a/drivers/md/md.c b/drivers/md/md.c index 5b9d4fe4e6e4..c26dcad8a3ac 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -169,7 +169,6 @@ void md_new_event(mddev_t *mddev) { atomic_inc(&md_event_count); wake_up(&md_event_waiters); - sysfs_notify(&mddev->kobj, NULL, "sync_action"); } EXPORT_SYMBOL_GPL(md_new_event); @@ -2936,7 +2935,7 @@ action_show(mddev_t *mddev, char *page) type = "check"; else type = "repair"; - } else + } else if (test_bit(MD_RECOVERY_RECOVER, &mddev->recovery)) type = "recover"; } return sprintf(page, "%s\n", type); @@ -2958,9 +2957,12 @@ action_store(mddev_t *mddev, const char *page, size_t len) } else if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) || test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) return -EBUSY; - else if (cmd_match(page, "resync") || cmd_match(page, "recover")) + else if (cmd_match(page, "resync")) + set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); + else if (cmd_match(page, "recover")) { + set_bit(MD_RECOVERY_RECOVER, &mddev->recovery); set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); - else if (cmd_match(page, "reshape")) { + } else if (cmd_match(page, "reshape")) { int err; if (mddev->pers->start_reshape == NULL) return -EINVAL; @@ -2977,6 +2979,7 @@ action_store(mddev_t *mddev, const char *page, size_t len) } set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); + sysfs_notify(&mddev->kobj, NULL, "sync_action"); return len; } @@ -3682,6 +3685,7 @@ static int do_md_run(mddev_t * mddev) mddev->changed = 1; md_new_event(mddev); sysfs_notify(&mddev->kobj, NULL, "array_state"); + sysfs_notify(&mddev->kobj, NULL, "sync_action"); kobject_uevent(&mddev->gendisk->dev.kobj, KOBJ_CHANGE); return 0; } @@ -4252,6 +4256,8 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) export_rdev(rdev); md_update_sb(mddev, 1); + if (mddev->degraded) + set_bit(MD_RECOVERY_RECOVER, &mddev->recovery); set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); return err; @@ -5105,6 +5111,8 @@ void md_error(mddev_t *mddev, mdk_rdev_t *rdev) if (!mddev->pers->error_handler) return; mddev->pers->error_handler(mddev,rdev); + if (mddev->degraded) + set_bit(MD_RECOVERY_RECOVER, &mddev->recovery); set_bit(MD_RECOVERY_INTR, &mddev->recovery); set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); @@ -6055,13 +6063,18 @@ void md_check_recovery(mddev_t *mddev) mddev->recovery = 0; /* flag recovery needed just to double check */ set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); + sysfs_notify(&mddev->kobj, NULL, "sync_action"); md_new_event(mddev); goto unlock; } + /* Set RUNNING before clearing NEEDED to avoid + * any transients in the value of "sync_action". + */ + set_bit(MD_RECOVERY_RUNNING, &mddev->recovery); + clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery); /* Clear some bits that don't mean anything, but * might be left set */ - clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery); clear_bit(MD_RECOVERY_INTR, &mddev->recovery); clear_bit(MD_RECOVERY_DONE, &mddev->recovery); @@ -6079,17 +6092,19 @@ void md_check_recovery(mddev_t *mddev) /* Cannot proceed */ goto unlock; set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery); + clear_bit(MD_RECOVERY_RECOVER, &mddev->recovery); } else if ((spares = remove_and_add_spares(mddev))) { clear_bit(MD_RECOVERY_SYNC, &mddev->recovery); clear_bit(MD_RECOVERY_CHECK, &mddev->recovery); + set_bit(MD_RECOVERY_RECOVER, &mddev->recovery); } else if (mddev->recovery_cp < MaxSector) { set_bit(MD_RECOVERY_SYNC, &mddev->recovery); + clear_bit(MD_RECOVERY_RECOVER, &mddev->recovery); } else if (!test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) /* nothing to be done ... */ goto unlock; if (mddev->pers->sync_request) { - set_bit(MD_RECOVERY_RUNNING, &mddev->recovery); if (spares && mddev->bitmap && ! mddev->bitmap->file) { /* We are adding a device or devices to an array * which has the bitmap stored on all devices. @@ -6108,9 +6123,16 @@ void md_check_recovery(mddev_t *mddev) mddev->recovery = 0; } else md_wakeup_thread(mddev->sync_thread); + sysfs_notify(&mddev->kobj, NULL, "sync_action"); md_new_event(mddev); } unlock: + if (!mddev->sync_thread) { + clear_bit(MD_RECOVERY_RUNNING, &mddev->recovery); + if (test_and_clear_bit(MD_RECOVERY_RECOVER, + &mddev->recovery)) + sysfs_notify(&mddev->kobj, NULL, "sync_action"); + } mddev_unlock(mddev); } } diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 780e0613e6d5..62aa9c9a6ddc 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -188,6 +188,7 @@ struct mddev_s * NEEDED: we might need to start a resync/recover * RUNNING: a thread is running, or about to be started * SYNC: actually doing a resync, not a recovery + * RECOVER: doing recovery, or need to try it. * INTR: resync needs to be aborted for some reason * DONE: thread is done and is waiting to be reaped * REQUEST: user-space has requested a sync (used with SYNC) @@ -198,6 +199,7 @@ struct mddev_s */ #define MD_RECOVERY_RUNNING 0 #define MD_RECOVERY_SYNC 1 +#define MD_RECOVERY_RECOVER 2 #define MD_RECOVERY_INTR 3 #define MD_RECOVERY_DONE 4 #define MD_RECOVERY_NEEDED 5 -- cgit v1.2.3 From 526647320e696f434647f38421a6ecf65b859c43 Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Sat, 28 Jun 2008 08:31:44 +1000 Subject: Make sure all changes to md/dev-XX/state are notified The important state change happens during an interrupt in md_error. So just set a flag there and call sysfs_notify later in process context. Signed-off-by: Neil Brown --- Documentation/md.txt | 10 ++++++++++ drivers/md/md.c | 14 +++++++++++++- include/linux/raid/md_k.h | 3 +++ 3 files changed, 26 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/Documentation/md.txt b/Documentation/md.txt index eb6e69e3732e..e06cc59437e4 100644 --- a/Documentation/md.txt +++ b/Documentation/md.txt @@ -297,6 +297,10 @@ Each directory contains: writemostly - device will only be subject to read requests if there are no other options. This applies only to raid1 arrays. + blocked - device has failed, metadata is "external", + and the failure hasn't been acknowledged yet. + Writes that would write to this device if + it were not faulty are blocked. spare - device is working, but not a full member. This includes spares that are in the process of being recovered to @@ -306,6 +310,12 @@ Each directory contains: Writing "remove" removes the device from the array. Writing "writemostly" sets the writemostly flag. Writing "-writemostly" clears the writemostly flag. + Writing "blocked" sets the "blocked" flag. + Writing "-blocked" clear the "blocked" flag and allows writes + to complete. + + This file responds to select/poll. Any change to 'faulty' + or 'blocked' causes an event. errors An approximate count of read errors that have been detected on diff --git a/drivers/md/md.c b/drivers/md/md.c index 60d4cad88c20..dc99d95a1b6d 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1886,6 +1886,8 @@ state_store(mdk_rdev_t *rdev, const char *buf, size_t len) err = 0; } + if (!err) + sysfs_notify(&rdev->kobj, NULL, "state"); return err ? err : len; } static struct rdev_sysfs_entry rdev_state = @@ -1979,7 +1981,8 @@ slot_store(mdk_rdev_t *rdev, const char *buf, size_t len) if (err) { rdev->raid_disk = -1; return err; - } + } else + sysfs_notify(&rdev->kobj, NULL, "state"); sprintf(nm, "rd%d", rdev->raid_disk); if (sysfs_create_link(&rdev->mddev->kobj, &rdev->kobj, nm)) printk(KERN_WARNING @@ -1996,6 +1999,7 @@ slot_store(mdk_rdev_t *rdev, const char *buf, size_t len) clear_bit(Faulty, &rdev->flags); clear_bit(WriteMostly, &rdev->flags); set_bit(In_sync, &rdev->flags); + sysfs_notify(&rdev->kobj, NULL, "state"); } return len; } @@ -3525,6 +3529,7 @@ static int do_md_run(mddev_t * mddev) return -EINVAL; } } + sysfs_notify(&rdev->kobj, NULL, "state"); } md_probe(mddev->unit, NULL, NULL); @@ -4256,6 +4261,8 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) } if (err) export_rdev(rdev); + else + sysfs_notify(&rdev->kobj, NULL, "state"); md_update_sb(mddev, 1); if (mddev->degraded) @@ -5115,6 +5122,7 @@ void md_error(mddev_t *mddev, mdk_rdev_t *rdev) mddev->pers->error_handler(mddev,rdev); if (mddev->degraded) set_bit(MD_RECOVERY_RECOVER, &mddev->recovery); + set_bit(StateChanged, &rdev->flags); set_bit(MD_RECOVERY_INTR, &mddev->recovery); set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); @@ -6037,6 +6045,10 @@ void md_check_recovery(mddev_t *mddev) if (mddev->flags) md_update_sb(mddev, 0); + rdev_for_each(rdev, rtmp, mddev) + if (test_and_clear_bit(StateChanged, &rdev->flags)) + sysfs_notify(&rdev->kobj, NULL, "state"); + if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) && !test_bit(MD_RECOVERY_DONE, &mddev->recovery)) { diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 62aa9c9a6ddc..df30c4395875 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -87,6 +87,9 @@ struct mdk_rdev_s #define Blocked 8 /* An error occured on an externally * managed array, don't allow writes * until it is cleared */ +#define StateChanged 9 /* Faulty or Blocked has changed during + * interrupt, so it needs to be + * notified by the thread */ wait_queue_head_t blocked_wait; int desc_nr; /* descriptor index in the superblock */ -- cgit v1.2.3 From b203886edbcaac3ca427cf4dbcb50b18bdb346fd Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 28 Jun 2008 08:31:50 +1000 Subject: md: kill STRIPE_OP_MOD_DMA in raid5 offload From: Dan Williams This micro-optimization allowed the raid code to skip a re-read of the parity block after checking parity. It took advantage of the fact that xor-offload-engines have their own internal result buffer and can check parity without writing to memory. Remove it for the following reasons: 1/ It is a layering violation for MD to need to manage the DMA and non-DMA paths within async_xor_zero_sum 2/ Bad precedent to toggle the 'ops' flags outside the lock 3/ Hard to realize a performance gain as reads will not need an updated parity block and writes will dirty it anyways. Signed-off-by: Dan Williams Signed-off-by: Neil Brown --- drivers/md/raid5.c | 10 ---------- include/linux/raid/raid5.h | 2 -- 2 files changed, 12 deletions(-) (limited to 'include') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 8c4e6149daea..60e61d2464b5 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -837,15 +837,10 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, static void ops_complete_check(void *stripe_head_ref) { struct stripe_head *sh = stripe_head_ref; - int pd_idx = sh->pd_idx; pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); - if (test_and_clear_bit(STRIPE_OP_MOD_DMA_CHECK, &sh->ops.pending) && - sh->ops.zero_sum_result == 0) - set_bit(R5_UPTODATE, &sh->dev[pd_idx].flags); - set_bit(STRIPE_OP_CHECK, &sh->ops.complete); set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); @@ -873,11 +868,6 @@ static void ops_run_check(struct stripe_head *sh) tx = async_xor_zero_sum(xor_dest, xor_srcs, 0, count, STRIPE_SIZE, &sh->ops.zero_sum_result, 0, NULL, NULL, NULL); - if (tx) - set_bit(STRIPE_OP_MOD_DMA_CHECK, &sh->ops.pending); - else - clear_bit(STRIPE_OP_MOD_DMA_CHECK, &sh->ops.pending); - atomic_inc(&sh->count); tx = async_trigger_callback(ASYNC_TX_DEP_ACK | ASYNC_TX_ACK, tx, ops_complete_check, sh); diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h index f0827d31ae6f..4ecae31a3dcb 100644 --- a/include/linux/raid/raid5.h +++ b/include/linux/raid/raid5.h @@ -267,10 +267,8 @@ struct r6_state { /* modifiers to the base operations * STRIPE_OP_MOD_REPAIR_PD - compute the parity block and write it back - * STRIPE_OP_MOD_DMA_CHECK - parity is not corrupted by the check */ #define STRIPE_OP_MOD_REPAIR_PD 7 -#define STRIPE_OP_MOD_DMA_CHECK 8 /* * Plugging: -- cgit v1.2.3 From 2b7497f0e0a0b9cf21d822e427d5399b2056501a Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 28 Jun 2008 08:31:52 +1000 Subject: md: kill STRIPE_OP_IO flag From: Dan Williams The R5_Want{Read,Write} flags already gate i/o. So, this flag is superfluous and we can unconditionally call ops_run_io(). Signed-off-by: Dan Williams Signed-off-by: Neil Brown --- drivers/md/raid5.c | 32 +++++--------------------------- include/linux/raid/raid5.h | 1 - 2 files changed, 5 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 60e61d2464b5..cac97080b278 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -373,8 +373,6 @@ static unsigned long get_stripe_work(struct stripe_head *sh) test_and_ack_op(STRIPE_OP_BIODRAIN, pending); test_and_ack_op(STRIPE_OP_POSTXOR, pending); test_and_ack_op(STRIPE_OP_CHECK, pending); - if (test_and_clear_bit(STRIPE_OP_IO, &sh->ops.pending)) - ack++; sh->ops.count -= ack; if (unlikely(sh->ops.count < 0)) { @@ -399,7 +397,6 @@ static void ops_run_io(struct stripe_head *sh) might_sleep(); - set_bit(STRIPE_IO_STARTED, &sh->state); for (i = disks; i--; ) { int rw; struct bio *bi; @@ -433,6 +430,8 @@ static void ops_run_io(struct stripe_head *sh) test_bit(STRIPE_EXPAND_READY, &sh->state)) md_sync_acct(rdev->bdev, STRIPE_SECTORS); + set_bit(STRIPE_IO_STARTED, &sh->state); + bi->bi_bdev = rdev->bdev; pr_debug("%s: for %llu schedule op %ld on disc %d\n", __func__, (unsigned long long)sh->sector, @@ -900,9 +899,6 @@ static void raid5_run_ops(struct stripe_head *sh, unsigned long pending) if (test_bit(STRIPE_OP_CHECK, &pending)) ops_run_check(sh); - if (test_bit(STRIPE_OP_IO, &pending)) - ops_run_io(sh); - if (overlap_clear) for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; @@ -2013,8 +2009,6 @@ static int __handle_issuing_new_read_requests5(struct stripe_head *sh, */ set_bit(R5_LOCKED, &dev->flags); set_bit(R5_Wantread, &dev->flags); - if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; s->locked++; pr_debug("Reading block %d (sync=%d)\n", disk_idx, s->syncing); @@ -2208,9 +2202,6 @@ static void handle_issuing_new_write_requests5(raid5_conf_t *conf, "%d for r-m-w\n", i); set_bit(R5_LOCKED, &dev->flags); set_bit(R5_Wantread, &dev->flags); - if (!test_and_set_bit( - STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; s->locked++; } else { set_bit(STRIPE_DELAYED, &sh->state); @@ -2234,9 +2225,6 @@ static void handle_issuing_new_write_requests5(raid5_conf_t *conf, "%d for Reconstruct\n", i); set_bit(R5_LOCKED, &dev->flags); set_bit(R5_Wantread, &dev->flags); - if (!test_and_set_bit( - STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; s->locked++; } else { set_bit(STRIPE_DELAYED, &sh->state); @@ -2444,8 +2432,6 @@ static void handle_parity_checks5(raid5_conf_t *conf, struct stripe_head *sh, set_bit(R5_LOCKED, &dev->flags); set_bit(R5_Wantwrite, &dev->flags); - if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; clear_bit(STRIPE_DEGRADED, &sh->state); s->locked++; @@ -2801,9 +2787,6 @@ static void handle_stripe5(struct stripe_head *sh) (i == sh->pd_idx || dev->written)) { pr_debug("Writing block %d\n", i); set_bit(R5_Wantwrite, &dev->flags); - if (!test_and_set_bit( - STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; if (prexor) continue; if (!test_bit(R5_Insync, &dev->flags) || @@ -2857,16 +2840,12 @@ static void handle_stripe5(struct stripe_head *sh) dev = &sh->dev[s.failed_num]; if (!test_bit(R5_ReWrite, &dev->flags)) { set_bit(R5_Wantwrite, &dev->flags); - if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; set_bit(R5_ReWrite, &dev->flags); set_bit(R5_LOCKED, &dev->flags); s.locked++; } else { /* let's read it back */ set_bit(R5_Wantread, &dev->flags); - if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; set_bit(R5_LOCKED, &dev->flags); s.locked++; } @@ -2884,13 +2863,10 @@ static void handle_stripe5(struct stripe_head *sh) clear_bit(STRIPE_OP_POSTXOR, &sh->ops.ack); clear_bit(STRIPE_OP_POSTXOR, &sh->ops.complete); - for (i = conf->raid_disks; i--; ) { + for (i = conf->raid_disks; i--; ) set_bit(R5_Wantwrite, &sh->dev[i].flags); set_bit(R5_LOCKED, &dev->flags); s.locked++; - if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending)) - sh->ops.count++; - } } if (s.expanded && test_bit(STRIPE_EXPANDING, &sh->state) && @@ -2926,6 +2902,8 @@ static void handle_stripe5(struct stripe_head *sh) if (pending) raid5_run_ops(sh, pending); + ops_run_io(sh); + return_io(return_bi); } diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h index 4ecae31a3dcb..1301195abf4b 100644 --- a/include/linux/raid/raid5.h +++ b/include/linux/raid/raid5.h @@ -263,7 +263,6 @@ struct r6_state { #define STRIPE_OP_BIODRAIN 3 #define STRIPE_OP_POSTXOR 4 #define STRIPE_OP_CHECK 5 -#define STRIPE_OP_IO 6 /* modifiers to the base operations * STRIPE_OP_MOD_REPAIR_PD - compute the parity block and write it back -- cgit v1.2.3 From ecc65c9b3f9b9d740a5deade3d85b39be56401b6 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 28 Jun 2008 08:31:57 +1000 Subject: md: replace STRIPE_OP_CHECK with 'check_states' From: Dan Williams The STRIPE_OP_* flags record the state of stripe operations which are performed outside the stripe lock. Their use in indicating which operations need to be run is straightforward; however, interpolating what the next state of the stripe should be based on a given combination of these flags is not straightforward, and has led to bugs. An easier to read implementation with minimal degrees of freedom is needed. Towards this goal, this patch introduces explicit states to replace what was previously interpolated from the STRIPE_OP_* flags. For now this only converts the handle_parity_checks5 path, removing a user of the ops.{pending,ack,complete,count} fields of struct stripe_operations. This conversion also found a remaining issue with the current code. There is a small window for a drive to fail between when we schedule a repair and when the parity calculation for that repair completes. When this happens we will writeback to 'failed_num' when we really want to write back to 'pd_idx'. Signed-off-by: Dan Williams Signed-off-by: Neil Brown --- drivers/md/raid5.c | 172 ++++++++++++++++++++++----------------------- include/linux/raid/raid5.h | 46 ++++++++++-- 2 files changed, 123 insertions(+), 95 deletions(-) (limited to 'include') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 6f3dd12dd3a4..544e1600f208 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -605,7 +605,11 @@ static void ops_complete_compute5(void *stripe_head_ref) set_bit(R5_UPTODATE, &tgt->flags); BUG_ON(!test_bit(R5_Wantcompute, &tgt->flags)); clear_bit(R5_Wantcompute, &tgt->flags); - set_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.complete); + clear_bit(STRIPE_COMPUTE_RUN, &sh->state); + if (sh->check_state == check_state_compute_run) + sh->check_state = check_state_compute_result; + else + set_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.complete); set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); } @@ -838,7 +842,7 @@ static void ops_complete_check(void *stripe_head_ref) pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); - set_bit(STRIPE_OP_CHECK, &sh->ops.complete); + sh->check_state = check_state_check_result; set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); } @@ -870,7 +874,8 @@ static void ops_run_check(struct stripe_head *sh) ops_complete_check, sh); } -static void raid5_run_ops(struct stripe_head *sh, unsigned long pending) +static void raid5_run_ops(struct stripe_head *sh, unsigned long pending, + unsigned long ops_request) { int overlap_clear = 0, i, disks = sh->disks; struct dma_async_tx_descriptor *tx = NULL; @@ -880,7 +885,8 @@ static void raid5_run_ops(struct stripe_head *sh, unsigned long pending) overlap_clear++; } - if (test_bit(STRIPE_OP_COMPUTE_BLK, &pending)) + if (test_bit(STRIPE_OP_COMPUTE_BLK, &pending) || + test_bit(STRIPE_OP_COMPUTE_BLK, &ops_request)) tx = ops_run_compute5(sh, pending); if (test_bit(STRIPE_OP_PREXOR, &pending)) @@ -894,7 +900,7 @@ static void raid5_run_ops(struct stripe_head *sh, unsigned long pending) if (test_bit(STRIPE_OP_POSTXOR, &pending)) ops_run_postxor(sh, tx, pending); - if (test_bit(STRIPE_OP_CHECK, &pending)) + if (test_bit(STRIPE_OP_CHECK, &ops_request)) ops_run_check(sh); if (overlap_clear) @@ -1961,8 +1967,7 @@ static int __handle_issuing_new_read_requests5(struct stripe_head *sh, /* don't schedule compute operations or reads on the parity block while * a check is in flight */ - if ((disk_idx == sh->pd_idx) && - test_bit(STRIPE_OP_CHECK, &sh->ops.pending)) + if (disk_idx == sh->pd_idx && sh->check_state) return ~0; /* is the data in this block needed, and can we get it? */ @@ -1983,9 +1988,8 @@ static int __handle_issuing_new_read_requests5(struct stripe_head *sh, * 3/ We hold off parity block re-reads until check operations * have quiesced. */ - if ((s->uptodate == disks - 1) && - (s->failed && disk_idx == s->failed_num) && - !test_bit(STRIPE_OP_CHECK, &sh->ops.pending)) { + if ((s->uptodate == disks - 1) && !sh->check_state && + (s->failed && disk_idx == s->failed_num)) { set_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.pending); set_bit(R5_Wantcompute, &dev->flags); sh->ops.target = disk_idx; @@ -2021,12 +2025,8 @@ static void handle_issuing_new_read_requests5(struct stripe_head *sh, { int i; - /* Clear completed compute operations. Parity recovery - * (STRIPE_OP_MOD_REPAIR_PD) implies a write-back which is handled - * later on in this routine - */ - if (test_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.complete) && - !test_bit(STRIPE_OP_MOD_REPAIR_PD, &sh->ops.pending)) { + /* Clear completed compute operations */ + if (test_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.complete)) { clear_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.complete); clear_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.ack); clear_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.pending); @@ -2350,90 +2350,85 @@ static void handle_issuing_new_write_requests6(raid5_conf_t *conf, static void handle_parity_checks5(raid5_conf_t *conf, struct stripe_head *sh, struct stripe_head_state *s, int disks) { - int canceled_check = 0; + struct r5dev *dev = NULL; set_bit(STRIPE_HANDLE, &sh->state); - /* complete a check operation */ - if (test_and_clear_bit(STRIPE_OP_CHECK, &sh->ops.complete)) { - clear_bit(STRIPE_OP_CHECK, &sh->ops.ack); - clear_bit(STRIPE_OP_CHECK, &sh->ops.pending); + switch (sh->check_state) { + case check_state_idle: + /* start a new check operation if there are no failures */ if (s->failed == 0) { - if (sh->ops.zero_sum_result == 0) - /* parity is correct (on disc, - * not in buffer any more) - */ - set_bit(STRIPE_INSYNC, &sh->state); - else { - conf->mddev->resync_mismatches += - STRIPE_SECTORS; - if (test_bit( - MD_RECOVERY_CHECK, &conf->mddev->recovery)) - /* don't try to repair!! */ - set_bit(STRIPE_INSYNC, &sh->state); - else { - set_bit(STRIPE_OP_COMPUTE_BLK, - &sh->ops.pending); - set_bit(STRIPE_OP_MOD_REPAIR_PD, - &sh->ops.pending); - set_bit(R5_Wantcompute, - &sh->dev[sh->pd_idx].flags); - sh->ops.target = sh->pd_idx; - sh->ops.count++; - s->uptodate++; - } - } - } else - canceled_check = 1; /* STRIPE_INSYNC is not set */ - } - - /* start a new check operation if there are no failures, the stripe is - * not insync, and a repair is not in flight - */ - if (s->failed == 0 && - !test_bit(STRIPE_INSYNC, &sh->state) && - !test_bit(STRIPE_OP_MOD_REPAIR_PD, &sh->ops.pending)) { - if (!test_and_set_bit(STRIPE_OP_CHECK, &sh->ops.pending)) { BUG_ON(s->uptodate != disks); + sh->check_state = check_state_run; + set_bit(STRIPE_OP_CHECK, &s->ops_request); clear_bit(R5_UPTODATE, &sh->dev[sh->pd_idx].flags); - sh->ops.count++; s->uptodate--; + break; } - } - - /* check if we can clear a parity disk reconstruct */ - if (test_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.complete) && - test_bit(STRIPE_OP_MOD_REPAIR_PD, &sh->ops.pending)) { - - clear_bit(STRIPE_OP_MOD_REPAIR_PD, &sh->ops.pending); - clear_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.complete); - clear_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.ack); - clear_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.pending); - } - + dev = &sh->dev[s->failed_num]; + /* fall through */ + case check_state_compute_result: + sh->check_state = check_state_idle; + if (!dev) + dev = &sh->dev[sh->pd_idx]; + + /* check that a write has not made the stripe insync */ + if (test_bit(STRIPE_INSYNC, &sh->state)) + break; - /* Wait for check parity and compute block operations to complete - * before write-back. If a failure occurred while the check operation - * was in flight we need to cycle this stripe through handle_stripe - * since the parity block may not be uptodate - */ - if (!canceled_check && !test_bit(STRIPE_INSYNC, &sh->state) && - !test_bit(STRIPE_OP_CHECK, &sh->ops.pending) && - !test_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.pending)) { - struct r5dev *dev; /* either failed parity check, or recovery is happening */ - if (s->failed == 0) - s->failed_num = sh->pd_idx; - dev = &sh->dev[s->failed_num]; BUG_ON(!test_bit(R5_UPTODATE, &dev->flags)); BUG_ON(s->uptodate != disks); set_bit(R5_LOCKED, &dev->flags); + s->locked++; set_bit(R5_Wantwrite, &dev->flags); clear_bit(STRIPE_DEGRADED, &sh->state); - s->locked++; set_bit(STRIPE_INSYNC, &sh->state); + break; + case check_state_run: + break; /* we will be called again upon completion */ + case check_state_check_result: + sh->check_state = check_state_idle; + + /* if a failure occurred during the check operation, leave + * STRIPE_INSYNC not set and let the stripe be handled again + */ + if (s->failed) + break; + + /* handle a successful check operation, if parity is correct + * we are done. Otherwise update the mismatch count and repair + * parity if !MD_RECOVERY_CHECK + */ + if (sh->ops.zero_sum_result == 0) + /* parity is correct (on disc, + * not in buffer any more) + */ + set_bit(STRIPE_INSYNC, &sh->state); + else { + conf->mddev->resync_mismatches += STRIPE_SECTORS; + if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery)) + /* don't try to repair!! */ + set_bit(STRIPE_INSYNC, &sh->state); + else { + sh->check_state = check_state_compute_run; + set_bit(STRIPE_OP_COMPUTE_BLK, &s->ops_request); + set_bit(R5_Wantcompute, + &sh->dev[sh->pd_idx].flags); + sh->ops.target = sh->pd_idx; + s->uptodate++; + } + } + break; + case check_state_compute_run: + break; + default: + printk(KERN_ERR "%s: unknown check_state: %d sector: %llu\n", + __func__, sh->check_state, + (unsigned long long) sh->sector); + BUG(); } } @@ -2807,7 +2802,7 @@ static void handle_stripe5(struct stripe_head *sh) * block. */ if (s.to_write && !test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending) && - !test_bit(STRIPE_OP_CHECK, &sh->ops.pending)) + !sh->check_state) handle_issuing_new_write_requests5(conf, sh, &s, disks); /* maybe we need to check and possibly fix the parity for this stripe @@ -2815,11 +2810,10 @@ static void handle_stripe5(struct stripe_head *sh) * data is available. The parity check is held off while parity * dependent operations are in flight. */ - if ((s.syncing && s.locked == 0 && + if (sh->check_state || + (s.syncing && s.locked == 0 && !test_bit(STRIPE_OP_COMPUTE_BLK, &sh->ops.pending) && - !test_bit(STRIPE_INSYNC, &sh->state)) || - test_bit(STRIPE_OP_CHECK, &sh->ops.pending) || - test_bit(STRIPE_OP_MOD_REPAIR_PD, &sh->ops.pending)) + !test_bit(STRIPE_INSYNC, &sh->state))) handle_parity_checks5(conf, sh, &s, disks); if (s.syncing && s.locked == 0 && test_bit(STRIPE_INSYNC, &sh->state)) { @@ -2897,8 +2891,8 @@ static void handle_stripe5(struct stripe_head *sh) if (unlikely(blocked_rdev)) md_wait_for_blocked_rdev(blocked_rdev, conf->mddev); - if (pending) - raid5_run_ops(sh, pending); + if (pending || s.ops_request) + raid5_run_ops(sh, pending, s.ops_request); ops_run_io(sh, &s); diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h index 1301195abf4b..2c96d5fd54bf 100644 --- a/include/linux/raid/raid5.h +++ b/include/linux/raid/raid5.h @@ -158,6 +158,41 @@ * the compute block completes. */ +/* + * Operations state - intermediate states that are visible outside of sh->lock + * In general _idle indicates nothing is running, _run indicates a data + * processing operation is active, and _result means the data processing result + * is stable and can be acted upon. For simple operations like biofill and + * compute that only have an _idle and _run state they are indicated with + * sh->state flags (STRIPE_BIOFILL_RUN and STRIPE_COMPUTE_RUN) + */ +/** + * enum check_states - handles syncing / repairing a stripe + * @check_state_idle - check operations are quiesced + * @check_state_run - check operation is running + * @check_state_result - set outside lock when check result is valid + * @check_state_compute_run - check failed and we are repairing + * @check_state_compute_result - set outside lock when compute result is valid + */ +enum check_states { + check_state_idle = 0, + check_state_run, /* parity check */ + check_state_check_result, + check_state_compute_run, /* parity repair */ + check_state_compute_result, +}; + +/** + * enum reconstruct_states - handles writing or expanding a stripe + */ +enum reconstruct_states { + reconstruct_state_idle = 0, + reconstruct_state_drain_run, /* write */ + reconstruct_state_run, /* expand */ + reconstruct_state_drain_result, + reconstruct_state_result, +}; + struct stripe_head { struct hlist_node hash; struct list_head lru; /* inactive_list or handle_list */ @@ -169,6 +204,7 @@ struct stripe_head { spinlock_t lock; int bm_seq; /* sequence number for bitmap flushes */ int disks; /* disks in stripe */ + enum check_states check_state; /* stripe_operations * @pending - pending ops flags (set for request->issue->complete) * @ack - submitted ops flags (set for issue->complete) @@ -202,6 +238,7 @@ struct stripe_head_state { int locked, uptodate, to_read, to_write, failed, written; int to_fill, compute, req_compute, non_overwrite; int failed_num; + unsigned long ops_request; }; /* r6_state - extra state data only relevant to r6 */ @@ -254,8 +291,10 @@ struct r6_state { #define STRIPE_EXPAND_READY 11 #define STRIPE_IO_STARTED 12 /* do not count towards 'bypass_count' */ #define STRIPE_FULL_WRITE 13 /* all blocks are set to be overwritten */ +#define STRIPE_BIOFILL_RUN 14 +#define STRIPE_COMPUTE_RUN 15 /* - * Operations flags (in issue order) + * Operation request flags */ #define STRIPE_OP_BIOFILL 0 #define STRIPE_OP_COMPUTE_BLK 1 @@ -264,11 +303,6 @@ struct r6_state { #define STRIPE_OP_POSTXOR 4 #define STRIPE_OP_CHECK 5 -/* modifiers to the base operations - * STRIPE_OP_MOD_REPAIR_PD - compute the parity block and write it back - */ -#define STRIPE_OP_MOD_REPAIR_PD 7 - /* * Plugging: * -- cgit v1.2.3 From 600aa10993012ff2dd5617720dac081e4f992017 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 28 Jun 2008 08:32:05 +1000 Subject: md: replace STRIPE_OP_{BIODRAIN,PREXOR,POSTXOR} with 'reconstruct_states' From: Dan Williams Track the state of reconstruct operations (recalculating the parity block usually due to incoming writes, or as part of array expansion) Reduces the scope of the STRIPE_OP_{BIODRAIN,PREXOR,POSTXOR} flags to only tracking whether a reconstruct operation has been requested via the ops_request field of struct stripe_head_state. This is the final step in the removal of ops.{pending,ack,complete,count}, i.e. the STRIPE_OP_{BIODRAIN,PREXOR,POSTXOR} flags only request an operation and do not track the state of the operation. Signed-off-by: Dan Williams Signed-off-by: Neil Brown --- drivers/md/raid5.c | 204 ++++++++++++++------------------------------- include/linux/raid/raid5.h | 9 +- 2 files changed, 63 insertions(+), 150 deletions(-) (limited to 'include') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 835046bf384e..b9159367491a 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -122,6 +122,13 @@ static void return_io(struct bio *return_bi) static void print_raid5_conf (raid5_conf_t *conf); +static int stripe_operations_active(struct stripe_head *sh) +{ + return sh->check_state || sh->reconstruct_state || + test_bit(STRIPE_BIOFILL_RUN, &sh->state) || + test_bit(STRIPE_COMPUTE_RUN, &sh->state); +} + static void __release_stripe(raid5_conf_t *conf, struct stripe_head *sh) { if (atomic_dec_and_test(&sh->count)) { @@ -141,7 +148,7 @@ static void __release_stripe(raid5_conf_t *conf, struct stripe_head *sh) } md_wakeup_thread(conf->mddev->thread); } else { - BUG_ON(sh->ops.pending); + BUG_ON(stripe_operations_active(sh)); if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) { atomic_dec(&conf->preread_active_stripes); if (atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD) @@ -243,7 +250,7 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx, int BUG_ON(atomic_read(&sh->count) != 0); BUG_ON(test_bit(STRIPE_HANDLE, &sh->state)); - BUG_ON(sh->ops.pending || sh->ops.ack || sh->ops.complete); + BUG_ON(stripe_operations_active(sh)); CHECK_DEVLOCK(); pr_debug("init_stripe called, stripe %llu\n", @@ -344,47 +351,6 @@ static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector return sh; } -/* test_and_ack_op() ensures that we only dequeue an operation once */ -#define test_and_ack_op(op, pend) \ -do { \ - if (test_bit(op, &sh->ops.pending) && \ - !test_bit(op, &sh->ops.complete)) { \ - if (test_and_set_bit(op, &sh->ops.ack)) \ - clear_bit(op, &pend); \ - else \ - ack++; \ - } else \ - clear_bit(op, &pend); \ -} while (0) - -/* find new work to run, do not resubmit work that is already - * in flight - */ -static unsigned long get_stripe_work(struct stripe_head *sh) -{ - unsigned long pending; - int ack = 0; - - pending = sh->ops.pending; - - test_and_ack_op(STRIPE_OP_BIOFILL, pending); - test_and_ack_op(STRIPE_OP_COMPUTE_BLK, pending); - test_and_ack_op(STRIPE_OP_PREXOR, pending); - test_and_ack_op(STRIPE_OP_BIODRAIN, pending); - test_and_ack_op(STRIPE_OP_POSTXOR, pending); - test_and_ack_op(STRIPE_OP_CHECK, pending); - - sh->ops.count -= ack; - if (unlikely(sh->ops.count < 0)) { - printk(KERN_ERR "pending: %#lx ops.pending: %#lx ops.ack: %#lx " - "ops.complete: %#lx\n", pending, sh->ops.pending, - sh->ops.ack, sh->ops.complete); - BUG(); - } - - return pending; -} - static void raid5_end_read_request(struct bio *bi, int error); static void @@ -609,7 +575,7 @@ static void ops_complete_compute5(void *stripe_head_ref) } static struct dma_async_tx_descriptor * -ops_run_compute5(struct stripe_head *sh, unsigned long pending) +ops_run_compute5(struct stripe_head *sh, unsigned long ops_request) { /* kernel stack size limits the total number of disks */ int disks = sh->disks; @@ -640,7 +606,7 @@ ops_run_compute5(struct stripe_head *sh, unsigned long pending) ops_complete_compute5, sh); /* ack now if postxor is not set to be run */ - if (tx && !test_bit(STRIPE_OP_POSTXOR, &pending)) + if (tx && !test_bit(STRIPE_OP_POSTXOR, &ops_request)) async_tx_ack(tx); return tx; @@ -652,8 +618,6 @@ static void ops_complete_prexor(void *stripe_head_ref) pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); - - set_bit(STRIPE_OP_PREXOR, &sh->ops.complete); } static struct dma_async_tx_descriptor * @@ -686,7 +650,7 @@ ops_run_prexor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) static struct dma_async_tx_descriptor * ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, - unsigned long pending) + unsigned long ops_request) { int disks = sh->disks; int pd_idx = sh->pd_idx, i; @@ -694,7 +658,7 @@ ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, /* check if prexor is active which means only process blocks * that are part of a read-modify-write (Wantprexor) */ - int prexor = test_bit(STRIPE_OP_PREXOR, &pending); + int prexor = test_bit(STRIPE_OP_PREXOR, &ops_request); pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); @@ -744,7 +708,7 @@ static void ops_complete_postxor(void *stripe_head_ref) pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); - set_bit(STRIPE_OP_POSTXOR, &sh->ops.complete); + sh->reconstruct_state = reconstruct_state_result; set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); } @@ -763,16 +727,14 @@ static void ops_complete_write(void *stripe_head_ref) set_bit(R5_UPTODATE, &dev->flags); } - set_bit(STRIPE_OP_BIODRAIN, &sh->ops.complete); - set_bit(STRIPE_OP_POSTXOR, &sh->ops.complete); - + sh->reconstruct_state = reconstruct_state_drain_result; set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); } static void ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, - unsigned long pending) + unsigned long ops_request) { /* kernel stack size limits the total number of disks */ int disks = sh->disks; @@ -780,7 +742,7 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, int count = 0, pd_idx = sh->pd_idx, i; struct page *xor_dest; - int prexor = test_bit(STRIPE_OP_PREXOR, &pending); + int prexor = test_bit(STRIPE_OP_PREXOR, &ops_request); unsigned long flags; dma_async_tx_callback callback; @@ -807,7 +769,7 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, } /* check whether this postxor is part of a write */ - callback = test_bit(STRIPE_OP_BIODRAIN, &pending) ? + callback = test_bit(STRIPE_OP_BIODRAIN, &ops_request) ? ops_complete_write : ops_complete_postxor; /* 1/ if we prexor'd then the dest is reused as a source @@ -868,8 +830,7 @@ static void ops_run_check(struct stripe_head *sh) ops_complete_check, sh); } -static void raid5_run_ops(struct stripe_head *sh, unsigned long pending, - unsigned long ops_request) +static void raid5_run_ops(struct stripe_head *sh, unsigned long ops_request) { int overlap_clear = 0, i, disks = sh->disks; struct dma_async_tx_descriptor *tx = NULL; @@ -880,18 +841,18 @@ static void raid5_run_ops(struct stripe_head *sh, unsigned long pending, } if (test_bit(STRIPE_OP_COMPUTE_BLK, &ops_request)) - tx = ops_run_compute5(sh, pending); + tx = ops_run_compute5(sh, ops_request); - if (test_bit(STRIPE_OP_PREXOR, &pending)) + if (test_bit(STRIPE_OP_PREXOR, &ops_request)) tx = ops_run_prexor(sh, tx); - if (test_bit(STRIPE_OP_BIODRAIN, &pending)) { - tx = ops_run_biodrain(sh, tx, pending); + if (test_bit(STRIPE_OP_BIODRAIN, &ops_request)) { + tx = ops_run_biodrain(sh, tx, ops_request); overlap_clear++; } - if (test_bit(STRIPE_OP_POSTXOR, &pending)) - ops_run_postxor(sh, tx, pending); + if (test_bit(STRIPE_OP_POSTXOR, &ops_request)) + ops_run_postxor(sh, tx, ops_request); if (test_bit(STRIPE_OP_CHECK, &ops_request)) ops_run_check(sh); @@ -1684,11 +1645,11 @@ static void compute_block_2(struct stripe_head *sh, int dd_idx1, int dd_idx2) } } -static int -handle_write_operations5(struct stripe_head *sh, int rcw, int expand) +static void +handle_write_operations5(struct stripe_head *sh, struct stripe_head_state *s, + int rcw, int expand) { int i, pd_idx = sh->pd_idx, disks = sh->disks; - int locked = 0; if (rcw) { /* if we are not expanding this is a proper write request, and @@ -1696,12 +1657,12 @@ handle_write_operations5(struct stripe_head *sh, int rcw, int expand) * stripe cache */ if (!expand) { - set_bit(STRIPE_OP_BIODRAIN, &sh->ops.pending); - sh->ops.count++; - } + sh->reconstruct_state = reconstruct_state_drain_run; + set_bit(STRIPE_OP_BIODRAIN, &s->ops_request); + } else + sh->reconstruct_state = reconstruct_state_run; - set_bit(STRIPE_OP_POSTXOR, &sh->ops.pending); - sh->ops.count++; + set_bit(STRIPE_OP_POSTXOR, &s->ops_request); for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; @@ -1710,21 +1671,20 @@ handle_write_operations5(struct stripe_head *sh, int rcw, int expand) set_bit(R5_LOCKED, &dev->flags); if (!expand) clear_bit(R5_UPTODATE, &dev->flags); - locked++; + s->locked++; } } - if (locked + 1 == disks) + if (s->locked + 1 == disks) if (!test_and_set_bit(STRIPE_FULL_WRITE, &sh->state)) atomic_inc(&sh->raid_conf->pending_full_writes); } else { BUG_ON(!(test_bit(R5_UPTODATE, &sh->dev[pd_idx].flags) || test_bit(R5_Wantcompute, &sh->dev[pd_idx].flags))); - set_bit(STRIPE_OP_PREXOR, &sh->ops.pending); - set_bit(STRIPE_OP_BIODRAIN, &sh->ops.pending); - set_bit(STRIPE_OP_POSTXOR, &sh->ops.pending); - - sh->ops.count += 3; + sh->reconstruct_state = reconstruct_state_drain_run; + set_bit(STRIPE_OP_PREXOR, &s->ops_request); + set_bit(STRIPE_OP_BIODRAIN, &s->ops_request); + set_bit(STRIPE_OP_POSTXOR, &s->ops_request); for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; @@ -1742,7 +1702,7 @@ handle_write_operations5(struct stripe_head *sh, int rcw, int expand) set_bit(R5_Wantprexor, &dev->flags); set_bit(R5_LOCKED, &dev->flags); clear_bit(R5_UPTODATE, &dev->flags); - locked++; + s->locked++; } } } @@ -1752,13 +1712,11 @@ handle_write_operations5(struct stripe_head *sh, int rcw, int expand) */ set_bit(R5_LOCKED, &sh->dev[pd_idx].flags); clear_bit(R5_UPTODATE, &sh->dev[pd_idx].flags); - locked++; + s->locked++; - pr_debug("%s: stripe %llu locked: %d pending: %lx\n", + pr_debug("%s: stripe %llu locked: %d ops_request: %lx\n", __func__, (unsigned long long)sh->sector, - locked, sh->ops.pending); - - return locked; + s->locked, s->ops_request); } /* @@ -2005,8 +1963,7 @@ static void handle_issuing_new_read_requests5(struct stripe_head *sh, * midst of changing due to a write */ if (!test_bit(STRIPE_COMPUTE_RUN, &sh->state) && !sh->check_state && - !test_bit(STRIPE_OP_PREXOR, &sh->ops.pending) && - !test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending)) { + !sh->reconstruct_state) { for (i = disks; i--; ) if (__handle_issuing_new_read_requests5( sh, s, i, disks) == 0) @@ -2211,7 +2168,7 @@ static void handle_issuing_new_write_requests5(raid5_conf_t *conf, if ((s->req_compute || !test_bit(STRIPE_COMPUTE_RUN, &sh->state)) && (s->locked == 0 && (rcw == 0 || rmw == 0) && !test_bit(STRIPE_BIT_DELAY, &sh->state))) - s->locked += handle_write_operations5(sh, rcw == 0, 0); + handle_write_operations5(sh, s, rcw == 0, 0); } static void handle_issuing_new_write_requests6(raid5_conf_t *conf, @@ -2581,15 +2538,14 @@ static void handle_stripe5(struct stripe_head *sh) struct bio *return_bi = NULL; struct stripe_head_state s; struct r5dev *dev; - unsigned long pending = 0; mdk_rdev_t *blocked_rdev = NULL; int prexor; memset(&s, 0, sizeof(s)); - pr_debug("handling stripe %llu, state=%#lx cnt=%d, pd_idx=%d " - "ops=%lx:%lx:%lx\n", (unsigned long long)sh->sector, sh->state, - atomic_read(&sh->count), sh->pd_idx, - sh->ops.pending, sh->ops.ack, sh->ops.complete); + pr_debug("handling stripe %llu, state=%#lx cnt=%d, pd_idx=%d check:%d " + "reconstruct:%d\n", (unsigned long long)sh->sector, sh->state, + atomic_read(&sh->count), sh->pd_idx, sh->check_state, + sh->reconstruct_state); spin_lock(&sh->lock); clear_bit(STRIPE_HANDLE, &sh->state); @@ -2703,34 +2659,12 @@ static void handle_stripe5(struct stripe_head *sh) /* Now we check to see if any write operations have recently * completed */ - - /* leave prexor set until postxor is done, allows us to distinguish - * a rmw from a rcw during biodrain - */ prexor = 0; - if (test_bit(STRIPE_OP_PREXOR, &sh->ops.complete) && - test_bit(STRIPE_OP_POSTXOR, &sh->ops.complete)) { - - prexor = 1; - clear_bit(STRIPE_OP_PREXOR, &sh->ops.complete); - clear_bit(STRIPE_OP_PREXOR, &sh->ops.ack); - clear_bit(STRIPE_OP_PREXOR, &sh->ops.pending); - + if (sh->reconstruct_state == reconstruct_state_drain_result) { + sh->reconstruct_state = reconstruct_state_idle; for (i = disks; i--; ) - clear_bit(R5_Wantprexor, &sh->dev[i].flags); - } - - /* if only POSTXOR is set then this is an 'expand' postxor */ - if (test_bit(STRIPE_OP_BIODRAIN, &sh->ops.complete) && - test_bit(STRIPE_OP_POSTXOR, &sh->ops.complete)) { - - clear_bit(STRIPE_OP_BIODRAIN, &sh->ops.complete); - clear_bit(STRIPE_OP_BIODRAIN, &sh->ops.ack); - clear_bit(STRIPE_OP_BIODRAIN, &sh->ops.pending); - - clear_bit(STRIPE_OP_POSTXOR, &sh->ops.complete); - clear_bit(STRIPE_OP_POSTXOR, &sh->ops.ack); - clear_bit(STRIPE_OP_POSTXOR, &sh->ops.pending); + prexor += test_and_clear_bit(R5_Wantprexor, + &sh->dev[i].flags); /* All the 'written' buffers and the parity block are ready to * be written back to disk @@ -2763,8 +2697,7 @@ static void handle_stripe5(struct stripe_head *sh) * 2/ A 'check' operation is in flight, as it may clobber the parity * block. */ - if (s.to_write && !test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending) && - !sh->check_state) + if (s.to_write && !sh->reconstruct_state && !sh->check_state) handle_issuing_new_write_requests5(conf, sh, &s, disks); /* maybe we need to check and possibly fix the parity for this stripe @@ -2805,18 +2738,10 @@ static void handle_stripe5(struct stripe_head *sh) } } - /* Finish postxor operations initiated by the expansion - * process - */ - if (test_bit(STRIPE_OP_POSTXOR, &sh->ops.complete) && - !test_bit(STRIPE_OP_BIODRAIN, &sh->ops.pending)) { - + /* Finish reconstruct operations initiated by the expansion process */ + if (sh->reconstruct_state == reconstruct_state_result) { + sh->reconstruct_state = reconstruct_state_idle; clear_bit(STRIPE_EXPANDING, &sh->state); - - clear_bit(STRIPE_OP_POSTXOR, &sh->ops.pending); - clear_bit(STRIPE_OP_POSTXOR, &sh->ops.ack); - clear_bit(STRIPE_OP_POSTXOR, &sh->ops.complete); - for (i = conf->raid_disks; i--; ) set_bit(R5_Wantwrite, &sh->dev[i].flags); set_bit(R5_LOCKED, &dev->flags); @@ -2824,15 +2749,13 @@ static void handle_stripe5(struct stripe_head *sh) } if (s.expanded && test_bit(STRIPE_EXPANDING, &sh->state) && - !test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending)) { + !sh->reconstruct_state) { /* Need to write out all blocks after computing parity */ sh->disks = conf->raid_disks; sh->pd_idx = stripe_to_pdidx(sh->sector, conf, conf->raid_disks); - s.locked += handle_write_operations5(sh, 1, 1); - } else if (s.expanded && - s.locked == 0 && - !test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending)) { + handle_write_operations5(sh, &s, 1, 1); + } else if (s.expanded && !sh->reconstruct_state && s.locked == 0) { clear_bit(STRIPE_EXPAND_READY, &sh->state); atomic_dec(&conf->reshape_stripes); wake_up(&conf->wait_for_overlap); @@ -2843,9 +2766,6 @@ static void handle_stripe5(struct stripe_head *sh) !test_bit(STRIPE_COMPUTE_RUN, &sh->state)) handle_stripe_expansion(conf, sh, NULL); - if (sh->ops.count) - pending = get_stripe_work(sh); - unlock: spin_unlock(&sh->lock); @@ -2853,8 +2773,8 @@ static void handle_stripe5(struct stripe_head *sh) if (unlikely(blocked_rdev)) md_wait_for_blocked_rdev(blocked_rdev, conf->mddev); - if (pending || s.ops_request) - raid5_run_ops(sh, pending, s.ops_request); + if (s.ops_request) + raid5_run_ops(sh, s.ops_request); ops_run_io(sh, &s); diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h index 2c96d5fd54bf..5f3e674b87dd 100644 --- a/include/linux/raid/raid5.h +++ b/include/linux/raid/raid5.h @@ -205,19 +205,12 @@ struct stripe_head { int bm_seq; /* sequence number for bitmap flushes */ int disks; /* disks in stripe */ enum check_states check_state; + enum reconstruct_states reconstruct_state; /* stripe_operations - * @pending - pending ops flags (set for request->issue->complete) - * @ack - submitted ops flags (set for issue->complete) - * @complete - completed ops flags (set for complete) * @target - STRIPE_OP_COMPUTE_BLK target - * @count - raid5_runs_ops is set to run when this is non-zero */ struct stripe_operations { - unsigned long pending; - unsigned long ack; - unsigned long complete; int target; - int count; u32 zero_sum_result; } ops; struct r5dev { -- cgit v1.2.3 From d8ee0728b5b30d7a6f62c399a95e953616d31f23 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 28 Jun 2008 08:32:06 +1000 Subject: md: replace R5_WantPrexor with R5_WantDrain, add 'prexor' reconstruct_states From: Dan Williams Currently ops_run_biodrain and other locations have extra logic to determine which blocks are processed in the prexor and non-prexor cases. This can be eliminated if handle_write_operations5 flags the blocks to be processed in all cases via R5_Wantdrain. The presence of the prexor operation is tracked in sh->reconstruct_state. Signed-off-by: Dan Williams Signed-off-by: Neil Brown --- drivers/md/raid5.c | 89 +++++++++++++++------------------------------- include/linux/raid/raid5.h | 6 ++-- 2 files changed, 32 insertions(+), 63 deletions(-) (limited to 'include') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index b9159367491a..c71246061c0e 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -637,7 +637,7 @@ ops_run_prexor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; /* Only process blocks that are known to be uptodate */ - if (dev->towrite && test_bit(R5_Wantprexor, &dev->flags)) + if (test_bit(R5_Wantdrain, &dev->flags)) xor_srcs[count++] = dev->page; } @@ -649,16 +649,10 @@ ops_run_prexor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) } static struct dma_async_tx_descriptor * -ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, - unsigned long ops_request) +ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) { int disks = sh->disks; - int pd_idx = sh->pd_idx, i; - - /* check if prexor is active which means only process blocks - * that are part of a read-modify-write (Wantprexor) - */ - int prexor = test_bit(STRIPE_OP_PREXOR, &ops_request); + int i; pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); @@ -666,20 +660,8 @@ ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; struct bio *chosen; - int towrite; - towrite = 0; - if (prexor) { /* rmw */ - if (dev->towrite && - test_bit(R5_Wantprexor, &dev->flags)) - towrite = 1; - } else { /* rcw */ - if (i != pd_idx && dev->towrite && - test_bit(R5_LOCKED, &dev->flags)) - towrite = 1; - } - - if (towrite) { + if (test_and_clear_bit(R5_Wantdrain, &dev->flags)) { struct bio *wbi; spin_lock(&sh->lock); @@ -702,18 +684,6 @@ ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, } static void ops_complete_postxor(void *stripe_head_ref) -{ - struct stripe_head *sh = stripe_head_ref; - - pr_debug("%s: stripe %llu\n", __func__, - (unsigned long long)sh->sector); - - sh->reconstruct_state = reconstruct_state_result; - set_bit(STRIPE_HANDLE, &sh->state); - release_stripe(sh); -} - -static void ops_complete_write(void *stripe_head_ref) { struct stripe_head *sh = stripe_head_ref; int disks = sh->disks, i, pd_idx = sh->pd_idx; @@ -727,14 +697,21 @@ static void ops_complete_write(void *stripe_head_ref) set_bit(R5_UPTODATE, &dev->flags); } - sh->reconstruct_state = reconstruct_state_drain_result; + if (sh->reconstruct_state == reconstruct_state_drain_run) + sh->reconstruct_state = reconstruct_state_drain_result; + else if (sh->reconstruct_state == reconstruct_state_prexor_drain_run) + sh->reconstruct_state = reconstruct_state_prexor_drain_result; + else { + BUG_ON(sh->reconstruct_state != reconstruct_state_run); + sh->reconstruct_state = reconstruct_state_result; + } + set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); } static void -ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, - unsigned long ops_request) +ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) { /* kernel stack size limits the total number of disks */ int disks = sh->disks; @@ -742,9 +719,8 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, int count = 0, pd_idx = sh->pd_idx, i; struct page *xor_dest; - int prexor = test_bit(STRIPE_OP_PREXOR, &ops_request); + int prexor = 0; unsigned long flags; - dma_async_tx_callback callback; pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); @@ -752,7 +728,8 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, /* check if prexor is active which means only process blocks * that are part of a read-modify-write (written) */ - if (prexor) { + if (sh->reconstruct_state == reconstruct_state_prexor_drain_run) { + prexor = 1; xor_dest = xor_srcs[count++] = sh->dev[pd_idx].page; for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; @@ -768,10 +745,6 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, } } - /* check whether this postxor is part of a write */ - callback = test_bit(STRIPE_OP_BIODRAIN, &ops_request) ? - ops_complete_write : ops_complete_postxor; - /* 1/ if we prexor'd then the dest is reused as a source * 2/ if we did not prexor then we are redoing the parity * set ASYNC_TX_XOR_DROP_DST and ASYNC_TX_XOR_ZERO_DST @@ -785,10 +758,10 @@ ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx, if (unlikely(count == 1)) { flags &= ~(ASYNC_TX_XOR_DROP_DST | ASYNC_TX_XOR_ZERO_DST); tx = async_memcpy(xor_dest, xor_srcs[0], 0, 0, STRIPE_SIZE, - flags, tx, callback, sh); + flags, tx, ops_complete_postxor, sh); } else tx = async_xor(xor_dest, xor_srcs, 0, count, STRIPE_SIZE, - flags, tx, callback, sh); + flags, tx, ops_complete_postxor, sh); } static void ops_complete_check(void *stripe_head_ref) @@ -847,12 +820,12 @@ static void raid5_run_ops(struct stripe_head *sh, unsigned long ops_request) tx = ops_run_prexor(sh, tx); if (test_bit(STRIPE_OP_BIODRAIN, &ops_request)) { - tx = ops_run_biodrain(sh, tx, ops_request); + tx = ops_run_biodrain(sh, tx); overlap_clear++; } if (test_bit(STRIPE_OP_POSTXOR, &ops_request)) - ops_run_postxor(sh, tx, ops_request); + ops_run_postxor(sh, tx); if (test_bit(STRIPE_OP_CHECK, &ops_request)) ops_run_check(sh); @@ -1669,6 +1642,7 @@ handle_write_operations5(struct stripe_head *sh, struct stripe_head_state *s, if (dev->towrite) { set_bit(R5_LOCKED, &dev->flags); + set_bit(R5_Wantdrain, &dev->flags); if (!expand) clear_bit(R5_UPTODATE, &dev->flags); s->locked++; @@ -1681,7 +1655,7 @@ handle_write_operations5(struct stripe_head *sh, struct stripe_head_state *s, BUG_ON(!(test_bit(R5_UPTODATE, &sh->dev[pd_idx].flags) || test_bit(R5_Wantcompute, &sh->dev[pd_idx].flags))); - sh->reconstruct_state = reconstruct_state_drain_run; + sh->reconstruct_state = reconstruct_state_prexor_drain_run; set_bit(STRIPE_OP_PREXOR, &s->ops_request); set_bit(STRIPE_OP_BIODRAIN, &s->ops_request); set_bit(STRIPE_OP_POSTXOR, &s->ops_request); @@ -1691,15 +1665,10 @@ handle_write_operations5(struct stripe_head *sh, struct stripe_head_state *s, if (i == pd_idx) continue; - /* For a read-modify write there may be blocks that are - * locked for reading while others are ready to be - * written so we distinguish these blocks by the - * R5_Wantprexor bit - */ if (dev->towrite && (test_bit(R5_UPTODATE, &dev->flags) || - test_bit(R5_Wantcompute, &dev->flags))) { - set_bit(R5_Wantprexor, &dev->flags); + test_bit(R5_Wantcompute, &dev->flags))) { + set_bit(R5_Wantdrain, &dev->flags); set_bit(R5_LOCKED, &dev->flags); clear_bit(R5_UPTODATE, &dev->flags); s->locked++; @@ -2660,11 +2629,11 @@ static void handle_stripe5(struct stripe_head *sh) * completed */ prexor = 0; - if (sh->reconstruct_state == reconstruct_state_drain_result) { + if (sh->reconstruct_state == reconstruct_state_prexor_drain_result) + prexor = 1; + if (sh->reconstruct_state == reconstruct_state_drain_result || + sh->reconstruct_state == reconstruct_state_prexor_drain_result) { sh->reconstruct_state = reconstruct_state_idle; - for (i = disks; i--; ) - prexor += test_and_clear_bit(R5_Wantprexor, - &sh->dev[i].flags); /* All the 'written' buffers and the parity block are ready to * be written back to disk diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h index 5f3e674b87dd..3b2672792457 100644 --- a/include/linux/raid/raid5.h +++ b/include/linux/raid/raid5.h @@ -187,8 +187,10 @@ enum check_states { */ enum reconstruct_states { reconstruct_state_idle = 0, + reconstruct_state_prexor_drain_run, /* prexor-write */ reconstruct_state_drain_run, /* write */ reconstruct_state_run, /* expand */ + reconstruct_state_prexor_drain_result, reconstruct_state_drain_result, reconstruct_state_result, }; @@ -258,9 +260,7 @@ struct r6_state { #define R5_Wantfill 12 /* dev->toread contains a bio that needs * filling */ -#define R5_Wantprexor 13 /* distinguish blocks ready for rmw from - * other "towrites" - */ +#define R5_Wantdrain 13 /* dev->towrite needs to be drained */ /* * Write method */ -- cgit v1.2.3 From ee7e5516be4f2107535ad5a3d47d9c79f93661a2 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sun, 29 Jun 2008 14:18:46 +0400 Subject: generic: per-device coherent dma allocator Currently x86_32, sh and cris-v32 provide per-device coherent dma memory allocator. However their implementation is nearly identical. Refactor out common code to be reused by them. Signed-off-by: Dmitry Baryshkov Signed-off-by: Ingo Molnar --- include/asm-generic/dma-coherent.h | 32 ++++++++++ init/Kconfig | 4 ++ kernel/Makefile | 1 + kernel/dma-coherent.c | 127 +++++++++++++++++++++++++++++++++++++ 4 files changed, 164 insertions(+) create mode 100644 include/asm-generic/dma-coherent.h create mode 100644 kernel/dma-coherent.c (limited to 'include') diff --git a/include/asm-generic/dma-coherent.h b/include/asm-generic/dma-coherent.h new file mode 100644 index 000000000000..85a3ffaa0242 --- /dev/null +++ b/include/asm-generic/dma-coherent.h @@ -0,0 +1,32 @@ +#ifndef DMA_COHERENT_H +#define DMA_COHERENT_H + +#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT +/* + * These two functions are only for dma allocator. + * Don't use them in device drivers. + */ +int dma_alloc_from_coherent(struct device *dev, ssize_t size, + dma_addr_t *dma_handle, void **ret); +int dma_release_from_coherent(struct device *dev, int order, void *vaddr); + +/* + * Standard interface + */ +#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY +extern int +dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, + dma_addr_t device_addr, size_t size, int flags); + +extern void +dma_release_declared_memory(struct device *dev); + +extern void * +dma_mark_declared_memory_occupied(struct device *dev, + dma_addr_t device_addr, size_t size); +#else +#define dma_alloc_from_coherent(dev, size, handle, ret) (0) +#define dma_release_from_coherent(dev, order, vaddr) (0) +#endif + +#endif diff --git a/init/Kconfig b/init/Kconfig index 6199d1120900..63cdbd8bd3d5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -802,6 +802,10 @@ config PROC_PAGE_MONITOR endmenu # General setup +config HAVE_GENERIC_DMA_COHERENT + bool + default n + config SLABINFO bool depends on PROC_FS diff --git a/kernel/Makefile b/kernel/Makefile index 1c9938addb9d..9e287d8ab766 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -69,6 +69,7 @@ obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o obj-$(CONFIG_MARKERS) += marker.o obj-$(CONFIG_LATENCYTOP) += latencytop.o +obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o ifneq ($(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER),y) # According to Alan Modra , the -fno-omit-frame-pointer is diff --git a/kernel/dma-coherent.c b/kernel/dma-coherent.c new file mode 100644 index 000000000000..89a554cfd936 --- /dev/null +++ b/kernel/dma-coherent.c @@ -0,0 +1,127 @@ +/* + * Coherent per-device memory handling. + * Borrowed from i386 + */ +#include +#include + +struct dma_coherent_mem { + void *virt_base; + u32 device_base; + int size; + int flags; + unsigned long *bitmap; +}; + +int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, + dma_addr_t device_addr, size_t size, int flags) +{ + void __iomem *mem_base = NULL; + int pages = size >> PAGE_SHIFT; + int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long); + + if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0) + goto out; + if (!size) + goto out; + if (dev->dma_mem) + goto out; + + /* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */ + + mem_base = ioremap(bus_addr, size); + if (!mem_base) + goto out; + + dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL); + if (!dev->dma_mem) + goto out; + dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL); + if (!dev->dma_mem->bitmap) + goto free1_out; + + dev->dma_mem->virt_base = mem_base; + dev->dma_mem->device_base = device_addr; + dev->dma_mem->size = pages; + dev->dma_mem->flags = flags; + + if (flags & DMA_MEMORY_MAP) + return DMA_MEMORY_MAP; + + return DMA_MEMORY_IO; + + free1_out: + kfree(dev->dma_mem); + out: + if (mem_base) + iounmap(mem_base); + return 0; +} +EXPORT_SYMBOL(dma_declare_coherent_memory); + +void dma_release_declared_memory(struct device *dev) +{ + struct dma_coherent_mem *mem = dev->dma_mem; + + if (!mem) + return; + dev->dma_mem = NULL; + iounmap(mem->virt_base); + kfree(mem->bitmap); + kfree(mem); +} +EXPORT_SYMBOL(dma_release_declared_memory); + +void *dma_mark_declared_memory_occupied(struct device *dev, + dma_addr_t device_addr, size_t size) +{ + struct dma_coherent_mem *mem = dev->dma_mem; + int pos, err; + int pages = (size + (device_addr & ~PAGE_MASK) + PAGE_SIZE - 1); + + pages >>= PAGE_SHIFT; + + if (!mem) + return ERR_PTR(-EINVAL); + + pos = (device_addr - mem->device_base) >> PAGE_SHIFT; + err = bitmap_allocate_region(mem->bitmap, pos, get_order(pages)); + if (err != 0) + return ERR_PTR(err); + return mem->virt_base + (pos << PAGE_SHIFT); +} +EXPORT_SYMBOL(dma_mark_declared_memory_occupied); + +int dma_alloc_from_coherent(struct device *dev, ssize_t size, + dma_addr_t *dma_handle, void **ret) +{ + struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; + int order = get_order(size); + + if (mem) { + int page = bitmap_find_free_region(mem->bitmap, mem->size, + order); + if (page >= 0) { + *dma_handle = mem->device_base + (page << PAGE_SHIFT); + *ret = mem->virt_base + (page << PAGE_SHIFT); + memset(*ret, 0, size); + } + if (mem->flags & DMA_MEMORY_EXCLUSIVE) + *ret = NULL; + } + return (mem != NULL); +} + +int dma_release_from_coherent(struct device *dev, int order, void *vaddr) +{ + struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; + + if (mem && vaddr >= mem->virt_base && vaddr < + (mem->virt_base + (mem->size << PAGE_SHIFT))) { + int page = (vaddr - mem->virt_base) >> PAGE_SHIFT; + + bitmap_release_region(mem->bitmap, page, order); + return 1; + } + return 0; +} -- cgit v1.2.3 From 323ec001c6bb98eeabb5abbdbb8c8055d9496554 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sun, 29 Jun 2008 14:19:31 +0400 Subject: x86: use generic per-device dma coherent allocator Signed-off-by: Dmitry Baryshkov Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 1 + arch/x86/kernel/pci-dma.c | 122 +----------------------------------------- include/asm-x86/dma-mapping.h | 22 +------- 3 files changed, 4 insertions(+), 141 deletions(-) (limited to 'include') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e0edaaa6920a..9d4714e0020c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -25,6 +25,7 @@ config X86 select HAVE_KRETPROBES select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64) select HAVE_ARCH_KGDB if !X86_VOYAGER + select HAVE_GENERIC_DMA_COHERENT if X86_32 config ARCH_DEFCONFIG string diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index dc00a1331ace..b75c81a8d3e6 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -197,124 +197,6 @@ static __init int iommu_setup(char *p) } early_param("iommu", iommu_setup); -#ifdef CONFIG_X86_32 -int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, - dma_addr_t device_addr, size_t size, int flags) -{ - void __iomem *mem_base = NULL; - int pages = size >> PAGE_SHIFT; - int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long); - - if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0) - goto out; - if (!size) - goto out; - if (dev->dma_mem) - goto out; - - /* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */ - - mem_base = ioremap(bus_addr, size); - if (!mem_base) - goto out; - - dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL); - if (!dev->dma_mem) - goto out; - dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL); - if (!dev->dma_mem->bitmap) - goto free1_out; - - dev->dma_mem->virt_base = mem_base; - dev->dma_mem->device_base = device_addr; - dev->dma_mem->size = pages; - dev->dma_mem->flags = flags; - - if (flags & DMA_MEMORY_MAP) - return DMA_MEMORY_MAP; - - return DMA_MEMORY_IO; - - free1_out: - kfree(dev->dma_mem); - out: - if (mem_base) - iounmap(mem_base); - return 0; -} -EXPORT_SYMBOL(dma_declare_coherent_memory); - -void dma_release_declared_memory(struct device *dev) -{ - struct dma_coherent_mem *mem = dev->dma_mem; - - if (!mem) - return; - dev->dma_mem = NULL; - iounmap(mem->virt_base); - kfree(mem->bitmap); - kfree(mem); -} -EXPORT_SYMBOL(dma_release_declared_memory); - -void *dma_mark_declared_memory_occupied(struct device *dev, - dma_addr_t device_addr, size_t size) -{ - struct dma_coherent_mem *mem = dev->dma_mem; - int pos, err; - int pages = (size + (device_addr & ~PAGE_MASK) + PAGE_SIZE - 1); - - pages >>= PAGE_SHIFT; - - if (!mem) - return ERR_PTR(-EINVAL); - - pos = (device_addr - mem->device_base) >> PAGE_SHIFT; - err = bitmap_allocate_region(mem->bitmap, pos, get_order(pages)); - if (err != 0) - return ERR_PTR(err); - return mem->virt_base + (pos << PAGE_SHIFT); -} -EXPORT_SYMBOL(dma_mark_declared_memory_occupied); - -static int dma_alloc_from_coherent_mem(struct device *dev, ssize_t size, - dma_addr_t *dma_handle, void **ret) -{ - struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; - int order = get_order(size); - - if (mem) { - int page = bitmap_find_free_region(mem->bitmap, mem->size, - order); - if (page >= 0) { - *dma_handle = mem->device_base + (page << PAGE_SHIFT); - *ret = mem->virt_base + (page << PAGE_SHIFT); - memset(*ret, 0, size); - } - if (mem->flags & DMA_MEMORY_EXCLUSIVE) - *ret = NULL; - } - return (mem != NULL); -} - -static int dma_release_coherent(struct device *dev, int order, void *vaddr) -{ - struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; - - if (mem && vaddr >= mem->virt_base && vaddr < - (mem->virt_base + (mem->size << PAGE_SHIFT))) { - int page = (vaddr - mem->virt_base) >> PAGE_SHIFT; - - bitmap_release_region(mem->bitmap, page, order); - return 1; - } - return 0; -} -#else -#define dma_alloc_from_coherent_mem(dev, size, handle, ret) (0) -#define dma_release_coherent(dev, order, vaddr) (0) -#endif /* CONFIG_X86_32 */ - int dma_supported(struct device *dev, u64 mask) { #ifdef CONFIG_PCI @@ -383,7 +265,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, /* ignore region specifiers */ gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32); - if (dma_alloc_from_coherent_mem(dev, size, dma_handle, &memory)) + if (dma_alloc_from_coherent(dev, size, dma_handle, &memory)) return memory; if (!dev) { @@ -486,7 +368,7 @@ void dma_free_coherent(struct device *dev, size_t size, { int order = get_order(size); WARN_ON(irqs_disabled()); /* for portability */ - if (dma_release_coherent(dev, order, vaddr)) + if (dma_release_from_coherent(dev, order, vaddr)) return; if (dma_ops->unmap_single) dma_ops->unmap_single(dev, bus, size, 0); diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h index a1a4dc7fe6ec..c68f360ef564 100644 --- a/include/asm-x86/dma-mapping.h +++ b/include/asm-x86/dma-mapping.h @@ -213,25 +213,5 @@ static inline int dma_get_cache_alignment(void) #define dma_is_consistent(d, h) (1) -#ifdef CONFIG_X86_32 -# define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY -struct dma_coherent_mem { - void *virt_base; - u32 device_base; - int size; - int flags; - unsigned long *bitmap; -}; - -extern int -dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, - dma_addr_t device_addr, size_t size, int flags); - -extern void -dma_release_declared_memory(struct device *dev); - -extern void * -dma_mark_declared_memory_occupied(struct device *dev, - dma_addr_t device_addr, size_t size); -#endif /* CONFIG_X86_32 */ +#include #endif -- cgit v1.2.3 From b5470dc5fc18a8ff6517c3bb538d1479e58ecb02 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 27 Jun 2008 21:44:04 -0700 Subject: md: resolve external metadata handling deadlock in md_allow_write md_allow_write() marks the metadata dirty while holding mddev->lock and then waits for the write to complete. For externally managed metadata this causes a deadlock as userspace needs to take the lock to communicate that the metadata update has completed. Change md_allow_write() in the 'external' case to start the 'mark active' operation and then return -EAGAIN. The expected side effects while waiting for userspace to write 'active' to 'array_state' are holding off reshape (code currently handles -ENOMEM), cause some 'stripe_cache_size' change requests to fail, cause some GET_BITMAP_FILE ioctl requests to fall back to GFP_NOIO, and cause updates to 'raid_disks' to fail. Except for 'stripe_cache_size' changes these failures can be mitigated by coordinating with mdmon. md_write_start() still prevents writes from occurring until the metadata handler has had a chance to take action as it unconditionally waits for MD_CHANGE_CLEAN to be cleared. [neilb@suse.de: return -EAGAIN, try GFP_NOIO] Signed-off-by: Dan Williams --- drivers/md/md.c | 27 ++++++++++++++++----------- drivers/md/raid1.c | 6 ++++-- drivers/md/raid5.c | 12 +++++++++--- include/linux/raid/md.h | 2 +- 4 files changed, 30 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/drivers/md/md.c b/drivers/md/md.c index df1230af02cd..43d033d9a05a 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4172,9 +4172,11 @@ static int get_bitmap_file(mddev_t * mddev, void __user * arg) char *ptr, *buf = NULL; int err = -ENOMEM; - md_allow_write(mddev); + if (md_allow_write(mddev)) + file = kmalloc(sizeof(*file), GFP_NOIO); + else + file = kmalloc(sizeof(*file), GFP_KERNEL); - file = kmalloc(sizeof(*file), GFP_KERNEL); if (!file) goto out; @@ -5667,15 +5669,18 @@ void md_write_end(mddev_t *mddev) * may proceed without blocking. It is important to call this before * attempting a GFP_KERNEL allocation while holding the mddev lock. * Must be called with mddev_lock held. + * + * In the ->external case MD_CHANGE_CLEAN can not be cleared until mddev->lock + * is dropped, so return -EAGAIN after notifying userspace. */ -void md_allow_write(mddev_t *mddev) +int md_allow_write(mddev_t *mddev) { if (!mddev->pers) - return; + return 0; if (mddev->ro) - return; + return 0; if (!mddev->pers->sync_request) - return; + return 0; spin_lock_irq(&mddev->write_lock); if (mddev->in_sync) { @@ -5686,14 +5691,14 @@ void md_allow_write(mddev_t *mddev) mddev->safemode = 1; spin_unlock_irq(&mddev->write_lock); md_update_sb(mddev, 0); - sysfs_notify(&mddev->kobj, NULL, "array_state"); - /* wait for the dirty state to be recorded in the metadata */ - wait_event(mddev->sb_wait, - !test_bit(MD_CHANGE_CLEAN, &mddev->flags) && - !test_bit(MD_CHANGE_PENDING, &mddev->flags)); } else spin_unlock_irq(&mddev->write_lock); + + if (test_bit(MD_CHANGE_CLEAN, &mddev->flags)) + return -EAGAIN; + else + return 0; } EXPORT_SYMBOL_GPL(md_allow_write); diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index f05d5983efb6..491dc2d4ad5f 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2136,7 +2136,7 @@ static int raid1_reshape(mddev_t *mddev) conf_t *conf = mddev_to_conf(mddev); int cnt, raid_disks; unsigned long flags; - int d, d2; + int d, d2, err; /* Cannot change chunk_size, layout, or level */ if (mddev->chunk_size != mddev->new_chunk || @@ -2148,7 +2148,9 @@ static int raid1_reshape(mddev_t *mddev) return -EINVAL; } - md_allow_write(mddev); + err = md_allow_write(mddev); + if (err) + return err; raid_disks = mddev->raid_disks + mddev->delta_disks; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 442622067cae..8f4c70a53210 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -911,14 +911,16 @@ static int resize_stripes(raid5_conf_t *conf, int newsize) struct stripe_head *osh, *nsh; LIST_HEAD(newstripes); struct disk_info *ndisks; - int err = 0; + int err; struct kmem_cache *sc; int i; if (newsize <= conf->pool_size) return 0; /* never bother to shrink */ - md_allow_write(conf->mddev); + err = md_allow_write(conf->mddev); + if (err) + return err; /* Step 1 */ sc = kmem_cache_create(conf->cache_name[1-conf->active_name], @@ -3843,6 +3845,8 @@ raid5_store_stripe_cache_size(mddev_t *mddev, const char *page, size_t len) { raid5_conf_t *conf = mddev_to_conf(mddev); unsigned long new; + int err; + if (len >= PAGE_SIZE) return -EINVAL; if (!conf) @@ -3858,7 +3862,9 @@ raid5_store_stripe_cache_size(mddev_t *mddev, const char *page, size_t len) else break; } - md_allow_write(mddev); + err = md_allow_write(mddev); + if (err) + return err; while (new > conf->max_nr_stripes) { if (grow_one_stripe(conf)) conf->max_nr_stripes++; diff --git a/include/linux/raid/md.h b/include/linux/raid/md.h index b7386ae9d288..dc0e3fcb9f28 100644 --- a/include/linux/raid/md.h +++ b/include/linux/raid/md.h @@ -95,7 +95,7 @@ extern int sync_page_io(struct block_device *bdev, sector_t sector, int size, struct page *page, int rw); extern void md_do_sync(mddev_t *mddev); extern void md_new_event(mddev_t *mddev); -extern void md_allow_write(mddev_t *mddev); +extern int md_allow_write(mddev_t *mddev); extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev); #endif /* CONFIG_MD */ -- cgit v1.2.3 From 9982fbface82893e77d211fbabfbd229da6bdde6 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 6 Jul 2008 14:24:08 +0200 Subject: Revert "cpumask: introduce new APIs" This reverts commit acb7669c125676e63cf96582455509216c39745e. the wrappers are not needed anymore. Signed-off-by: Ingo Molnar --- include/linux/cpumask.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 47418b1b4103..80226e776143 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -394,10 +394,6 @@ int __next_cpu_nr(int n, const cpumask_t *srcp); #endif /* NR_CPUS > 64 */ -#define next_cpu_nr(n, src) next_cpu(n, src) -#define cpus_weight_nr(cpumask) cpus_weight(cpumask) -#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask) - /* * The following particular system cpumasks and operations manage * possible, present and online cpus. Each of them is a fixed size -- cgit v1.2.3 From 75f10b465af9efd59906e9079ed9cbda7e0f7a43 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Thu, 22 May 2008 16:20:18 +0100 Subject: [ARM] 5047/2: Support resetting by asserting GPIO pin This adds support for resetting via assertion of GPIO pin. This e.g. is used on Sharp Zaurus SL-6000. Signed-off-by: Dmitry Baryshkov Acked-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/Makefile | 2 +- arch/arm/mach-pxa/reset.c | 95 +++++++++++++++++++++++++++++++++++++ include/asm-arm/arch-pxa/hardware.h | 5 ++ include/asm-arm/arch-pxa/system.h | 17 +------ 4 files changed, 102 insertions(+), 17 deletions(-) create mode 100644 arch/arm/mach-pxa/reset.c (limited to 'include') diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 0e6d05bb81aa..c9e66fbe622e 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -4,7 +4,7 @@ # Common support (must be linked before board specific support) obj-y += clock.o devices.o generic.o irq.o dma.o \ - time.o gpio.o + time.o gpio.o reset.o obj-$(CONFIG_PM) += pm.o sleep.o standby.o obj-$(CONFIG_CPU_FREQ) += cpu-pxa.o diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c new file mode 100644 index 000000000000..551f313c94df --- /dev/null +++ b/arch/arm/mach-pxa/reset.c @@ -0,0 +1,95 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include +#include + +#include + +static void do_hw_reset(void); + +static int reset_gpio = -1; + +int init_gpio_reset(int gpio) +{ + int rc; + + rc = gpio_request(gpio, "reset generator"); + if (rc) { + printk(KERN_ERR "Can't request reset_gpio\n"); + goto out; + } + + rc = gpio_direction_input(gpio); + if (rc) { + printk(KERN_ERR "Can't configure reset_gpio for input\n"); + gpio_free(gpio); + goto out; + } + +out: + if (!rc) + reset_gpio = gpio; + + return rc; +} + +/* + * Trigger GPIO reset. + * This covers various types of logic connecting gpio pin + * to RESET pins (nRESET or GPIO_RESET): + */ +static void do_gpio_reset(void) +{ + BUG_ON(reset_gpio == -1); + + /* drive it low */ + gpio_direction_output(reset_gpio, 0); + mdelay(2); + /* rising edge or drive high */ + gpio_set_value(reset_gpio, 1); + mdelay(2); + /* falling edge */ + gpio_set_value(reset_gpio, 0); + + /* give it some time */ + mdelay(10); + + WARN_ON(1); + /* fallback */ + do_hw_reset(); +} + +static void do_hw_reset(void) +{ + /* Initialize the watchdog and let it fire */ + OWER = OWER_WME; + OSSR = OSSR_M3; + OSMR3 = OSCR + 368640; /* ... in 100 ms */ +} + +void arch_reset(char mode) +{ + if (cpu_is_pxa2xx()) + RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR; + + switch (mode) { + case 's': + /* Jump into ROM at address 0 */ + cpu_reset(0); + break; + case 'h': + do_hw_reset(); + break; + case 'g': + do_gpio_reset(); + break; + } +} + diff --git a/include/asm-arm/arch-pxa/hardware.h b/include/asm-arm/arch-pxa/hardware.h index e25558faa5a4..5547ec797ad0 100644 --- a/include/asm-arm/arch-pxa/hardware.h +++ b/include/asm-arm/arch-pxa/hardware.h @@ -205,6 +205,11 @@ static inline void __deprecated pxa_set_cken(int clock, int enable) */ extern unsigned int get_memclk_frequency_10khz(void); +/* + * register GPIO as reset generator + */ +extern int init_gpio_reset(int gpio); + #endif #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI) diff --git a/include/asm-arm/arch-pxa/system.h b/include/asm-arm/arch-pxa/system.h index 9aa6c2e939e8..14894ae3fa67 100644 --- a/include/asm-arm/arch-pxa/system.h +++ b/include/asm-arm/arch-pxa/system.h @@ -20,19 +20,4 @@ static inline void arch_idle(void) } -static inline void arch_reset(char mode) -{ - if (cpu_is_pxa2xx()) - RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR; - - if (mode == 's') { - /* Jump into ROM at address 0 */ - cpu_reset(0); - } else { - /* Initialize the watchdog and let it fire */ - OWER = OWER_WME; - OSSR = OSSR_M3; - OSMR3 = OSCR + 368640; /* ... in 100 ms */ - } -} - +void arch_reset(char mode); -- cgit v1.2.3 From b032fccca80cbbedaa80e5a72a202a43f08aa97e Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Thu, 12 Jun 2008 11:42:07 +0100 Subject: [ARM] 5083/2: Tosa: fix IrDA transciver powerup. On tosa the tranciver LED isn't powered down if the GPIO47 (STUART_TX) isn't configured as low-level. Power it down if IrDA is off to save a bit of power. Signed-off-by: Dmitry Baryshkov Signed-off-by: Russell King --- arch/arm/mach-pxa/tosa.c | 58 ++++++++++++++++++++++++++++++++--------- include/asm-arm/arch-pxa/tosa.h | 1 + 2 files changed, 47 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c index 9892464d7abc..7a89f764acf3 100644 --- a/arch/arm/mach-pxa/tosa.c +++ b/arch/arm/mach-pxa/tosa.c @@ -117,10 +117,6 @@ static unsigned long tosa_pin_config[] = { GPIO44_BTUART_CTS, GPIO45_BTUART_RTS, - /* IrDA */ - GPIO46_STUART_RXD, - GPIO47_STUART_TXD, - /* Keybd */ GPIO58_GPIO | MFP_LPM_DRIVE_LOW, GPIO59_GPIO | MFP_LPM_DRIVE_LOW, @@ -147,6 +143,17 @@ static unsigned long tosa_pin_config[] = { GPIO83_SSP2_TXD, }; +static unsigned long tosa_pin_irda_off[] = { + GPIO46_STUART_RXD, + GPIO47_GPIO | MFP_LPM_DRIVE_LOW, +}; + +static unsigned long tosa_pin_irda_on[] = { + GPIO46_STUART_RXD, + GPIO47_STUART_TXD, +}; + + /* * SCOOP Device */ @@ -341,29 +348,55 @@ static struct pxamci_platform_data tosa_mci_platform_data = { /* * Irda */ +static void tosa_irda_transceiver_mode(struct device *dev, int mode) +{ + if (mode & IR_OFF) { + gpio_set_value(TOSA_GPIO_IR_POWERDWN, 0); + pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_irda_off)); + gpio_direction_output(TOSA_GPIO_IRDA_TX, 0); + } else { + pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_irda_on)); + gpio_set_value(TOSA_GPIO_IR_POWERDWN, 1); + } +} + static int tosa_irda_startup(struct device *dev) { int ret; + ret = gpio_request(TOSA_GPIO_IRDA_TX, "IrDA TX"); + if (ret) + goto err_tx; + ret = gpio_direction_output(TOSA_GPIO_IRDA_TX, 0); + if (ret) + goto err_tx_dir; + ret = gpio_request(TOSA_GPIO_IR_POWERDWN, "IrDA powerdown"); if (ret) - return ret; + goto err_pwr; ret = gpio_direction_output(TOSA_GPIO_IR_POWERDWN, 0); if (ret) - gpio_free(TOSA_GPIO_IR_POWERDWN); + goto err_pwr_dir; - return ret; - } + tosa_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF); -static void tosa_irda_shutdown(struct device *dev) -{ + return 0; + +err_pwr_dir: gpio_free(TOSA_GPIO_IR_POWERDWN); +err_pwr: +err_tx_dir: + gpio_free(TOSA_GPIO_IRDA_TX); +err_tx: + return ret; } -static void tosa_irda_transceiver_mode(struct device *dev, int mode) +static void tosa_irda_shutdown(struct device *dev) { - gpio_set_value(TOSA_GPIO_IR_POWERDWN, !(mode & IR_OFF)); + tosa_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF); + gpio_free(TOSA_GPIO_IR_POWERDWN); + gpio_free(TOSA_GPIO_IRDA_TX); } static struct pxaficp_platform_data tosa_ficp_platform_data = { @@ -501,6 +534,7 @@ static void tosa_restart(char mode) static void __init tosa_init(void) { pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_config)); + pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_irda_off)); gpio_set_wake(MFP_PIN_GPIO1, 1); /* We can't pass to gpio-keys since it will drop the Reset altfunc */ diff --git a/include/asm-arm/arch-pxa/tosa.h b/include/asm-arm/arch-pxa/tosa.h index c5b6fde6907c..188226216154 100644 --- a/include/asm-arm/arch-pxa/tosa.h +++ b/include/asm-arm/arch-pxa/tosa.h @@ -99,6 +99,7 @@ #define TOSA_GPIO_TP_INT (32) /* Touch Panel pen down interrupt */ #define TOSA_GPIO_JC_CF_IRQ (36) /* CF slot1 Ready */ #define TOSA_GPIO_BAT_LOCKED (38) /* Battery locked */ +#define TOSA_GPIO_IRDA_TX (47) #define TOSA_GPIO_TG_SPI_SCLK (81) #define TOSA_GPIO_TG_SPI_CS (82) #define TOSA_GPIO_TG_SPI_MOSI (83) -- cgit v1.2.3 From d6315949ac5527efd00d48283a9e33361c86e8e9 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sun, 22 Jun 2008 12:01:58 +0100 Subject: [ARM] 5096/2: Support Toshiba TC6393XB Mobile I/O Controller. Add support for Toshiba TC6393XB companion chip. Currently only GPIO and part of IRQ features of the device are supported. Signed-off-by: Dmitry Baryshkov Signed-off-by: Russell King --- drivers/mfd/Kconfig | 6 + drivers/mfd/Makefile | 2 + drivers/mfd/tc6393xb.c | 537 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/tc6393xb.h | 47 ++++ 4 files changed, 592 insertions(+) create mode 100644 drivers/mfd/tc6393xb.c create mode 100644 include/linux/mfd/tc6393xb.h (limited to 'include') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 2566479937c9..1a1ac262fc87 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -38,6 +38,12 @@ config HTC_PASIC3 HTC Magician devices, respectively. Actual functionality is handled by the leds-pasic3 and ds1wm drivers. +config MFD_TC6393XB + bool "Support Toshiba TC6393XB" + depends on HAVE_GPIO_LIB + help + Support for Toshiba Mobile IO Controller TC6393XB + endmenu menu "Multimedia Capabilities Port drivers" diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index eef4e26807df..b4168442d53c 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -8,6 +8,8 @@ obj-$(CONFIG_MFD_ASIC3) += asic3.o obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o +obj-$(CONFIG_MFD_TC6393XB) += tc6393xb.o + obj-$(CONFIG_MCP) += mcp-core.o obj-$(CONFIG_MCP_SA11X0) += mcp-sa11x0.o obj-$(CONFIG_MCP_UCB1200) += ucb1x00-core.o diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c new file mode 100644 index 000000000000..4d7192edefe1 --- /dev/null +++ b/drivers/mfd/tc6393xb.c @@ -0,0 +1,537 @@ +/* + * Toshiba TC6393XB SoC support + * + * Copyright(c) 2005-2006 Chris Humbert + * Copyright(c) 2005 Dirk Opfer + * Copyright(c) 2005 Ian Molton + * Copyright(c) 2007 Dmitry Baryshkov + * + * Based on code written by Sharp/Lineo for 2.4 kernels + * Based on locomo.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define SCR_REVID 0x08 /* b Revision ID */ +#define SCR_ISR 0x50 /* b Interrupt Status */ +#define SCR_IMR 0x52 /* b Interrupt Mask */ +#define SCR_IRR 0x54 /* b Interrupt Routing */ +#define SCR_GPER 0x60 /* w GP Enable */ +#define SCR_GPI_SR(i) (0x64 + (i)) /* b3 GPI Status */ +#define SCR_GPI_IMR(i) (0x68 + (i)) /* b3 GPI INT Mask */ +#define SCR_GPI_EDER(i) (0x6c + (i)) /* b3 GPI Edge Detect Enable */ +#define SCR_GPI_LIR(i) (0x70 + (i)) /* b3 GPI Level Invert */ +#define SCR_GPO_DSR(i) (0x78 + (i)) /* b3 GPO Data Set */ +#define SCR_GPO_DOECR(i) (0x7c + (i)) /* b3 GPO Data OE Control */ +#define SCR_GP_IARCR(i) (0x80 + (i)) /* b3 GP Internal Active Register Control */ +#define SCR_GP_IARLCR(i) (0x84 + (i)) /* b3 GP INTERNAL Active Register Level Control */ +#define SCR_GPI_BCR(i) (0x88 + (i)) /* b3 GPI Buffer Control */ +#define SCR_GPA_IARCR 0x8c /* w GPa Internal Active Register Control */ +#define SCR_GPA_IARLCR 0x90 /* w GPa Internal Active Register Level Control */ +#define SCR_GPA_BCR 0x94 /* w GPa Buffer Control */ +#define SCR_CCR 0x98 /* w Clock Control */ +#define SCR_PLL2CR 0x9a /* w PLL2 Control */ +#define SCR_PLL1CR 0x9c /* l PLL1 Control */ +#define SCR_DIARCR 0xa0 /* b Device Internal Active Register Control */ +#define SCR_DBOCR 0xa1 /* b Device Buffer Off Control */ +#define SCR_FER 0xe0 /* b Function Enable */ +#define SCR_MCR 0xe4 /* w Mode Control */ +#define SCR_CONFIG 0xfc /* b Configuration Control */ +#define SCR_DEBUG 0xff /* b Debug */ + +#define SCR_CCR_CK32K BIT(0) +#define SCR_CCR_USBCK BIT(1) +#define SCR_CCR_UNK1 BIT(4) +#define SCR_CCR_MCLK_MASK (7 << 8) +#define SCR_CCR_MCLK_OFF (0 << 8) +#define SCR_CCR_MCLK_12 (1 << 8) +#define SCR_CCR_MCLK_24 (2 << 8) +#define SCR_CCR_MCLK_48 (3 << 8) +#define SCR_CCR_HCLK_MASK (3 << 12) +#define SCR_CCR_HCLK_24 (0 << 12) +#define SCR_CCR_HCLK_48 (1 << 12) + +#define SCR_FER_USBEN BIT(0) /* USB host enable */ +#define SCR_FER_LCDCVEN BIT(1) /* polysilicon TFT enable */ +#define SCR_FER_SLCDEN BIT(2) /* SLCD enable */ + +#define SCR_MCR_RDY_MASK (3 << 0) +#define SCR_MCR_RDY_OPENDRAIN (0 << 0) +#define SCR_MCR_RDY_TRISTATE (1 << 0) +#define SCR_MCR_RDY_PUSHPULL (2 << 0) +#define SCR_MCR_RDY_UNK BIT(2) +#define SCR_MCR_RDY_EN BIT(3) +#define SCR_MCR_INT_MASK (3 << 4) +#define SCR_MCR_INT_OPENDRAIN (0 << 4) +#define SCR_MCR_INT_TRISTATE (1 << 4) +#define SCR_MCR_INT_PUSHPULL (2 << 4) +#define SCR_MCR_INT_UNK BIT(6) +#define SCR_MCR_INT_EN BIT(7) +/* bits 8 - 16 are unknown */ + +#define TC_GPIO_BIT(i) (1 << (i & 0x7)) + +/*--------------------------------------------------------------------------*/ + +struct tc6393xb { + void __iomem *scr; + + struct gpio_chip gpio; + + struct clk *clk; /* 3,6 Mhz */ + + spinlock_t lock; /* protects RMW cycles */ + + struct { + u8 fer; + u16 ccr; + u8 gpi_bcr[3]; + u8 gpo_dsr[3]; + u8 gpo_doecr[3]; + } suspend_state; + + struct resource rscr; + struct resource *iomem; + int irq; + int irq_base; +}; + +/*--------------------------------------------------------------------------*/ + +static int tc6393xb_gpio_get(struct gpio_chip *chip, + unsigned offset) +{ + struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); + + /* XXX: does dsr also represent inputs? */ + return ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8)) + & TC_GPIO_BIT(offset); +} + +static void __tc6393xb_gpio_set(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); + u8 dsr; + + dsr = ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8)); + if (value) + dsr |= TC_GPIO_BIT(offset); + else + dsr &= ~TC_GPIO_BIT(offset); + + iowrite8(dsr, tc6393xb->scr + SCR_GPO_DSR(offset / 8)); +} + +static void tc6393xb_gpio_set(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); + unsigned long flags; + + spin_lock_irqsave(&tc6393xb->lock, flags); + + __tc6393xb_gpio_set(chip, offset, value); + + spin_unlock_irqrestore(&tc6393xb->lock, flags); +} + +static int tc6393xb_gpio_direction_input(struct gpio_chip *chip, + unsigned offset) +{ + struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); + unsigned long flags; + u8 doecr; + + spin_lock_irqsave(&tc6393xb->lock, flags); + + doecr = ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); + doecr &= ~TC_GPIO_BIT(offset); + iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); + + spin_unlock_irqrestore(&tc6393xb->lock, flags); + + return 0; +} + +static int tc6393xb_gpio_direction_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio); + unsigned long flags; + u8 doecr; + + spin_lock_irqsave(&tc6393xb->lock, flags); + + __tc6393xb_gpio_set(chip, offset, value); + + doecr = ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); + doecr |= TC_GPIO_BIT(offset); + iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8)); + + spin_unlock_irqrestore(&tc6393xb->lock, flags); + + return 0; +} + +static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base) +{ + tc6393xb->gpio.label = "tc6393xb"; + tc6393xb->gpio.base = gpio_base; + tc6393xb->gpio.ngpio = 16; + tc6393xb->gpio.set = tc6393xb_gpio_set; + tc6393xb->gpio.get = tc6393xb_gpio_get; + tc6393xb->gpio.direction_input = tc6393xb_gpio_direction_input; + tc6393xb->gpio.direction_output = tc6393xb_gpio_direction_output; + + return gpiochip_add(&tc6393xb->gpio); +} + +/*--------------------------------------------------------------------------*/ + +static void +tc6393xb_irq(unsigned int irq, struct irq_desc *desc) +{ + struct tc6393xb *tc6393xb = get_irq_data(irq); + unsigned int isr; + unsigned int i, irq_base; + + irq_base = tc6393xb->irq_base; + + while ((isr = ioread8(tc6393xb->scr + SCR_ISR) & + ~ioread8(tc6393xb->scr + SCR_IMR))) + for (i = 0; i < TC6393XB_NR_IRQS; i++) { + if (isr & (1 << i)) + generic_handle_irq(irq_base + i); + } +} + +static void tc6393xb_irq_ack(unsigned int irq) +{ +} + +static void tc6393xb_irq_mask(unsigned int irq) +{ + struct tc6393xb *tc6393xb = get_irq_chip_data(irq); + unsigned long flags; + u8 imr; + + spin_lock_irqsave(&tc6393xb->lock, flags); + imr = ioread8(tc6393xb->scr + SCR_IMR); + imr |= 1 << (irq - tc6393xb->irq_base); + iowrite8(imr, tc6393xb->scr + SCR_IMR); + spin_unlock_irqrestore(&tc6393xb->lock, flags); +} + +static void tc6393xb_irq_unmask(unsigned int irq) +{ + struct tc6393xb *tc6393xb = get_irq_chip_data(irq); + unsigned long flags; + u8 imr; + + spin_lock_irqsave(&tc6393xb->lock, flags); + imr = ioread8(tc6393xb->scr + SCR_IMR); + imr &= ~(1 << (irq - tc6393xb->irq_base)); + iowrite8(imr, tc6393xb->scr + SCR_IMR); + spin_unlock_irqrestore(&tc6393xb->lock, flags); +} + +static struct irq_chip tc6393xb_chip = { + .name = "tc6393xb", + .ack = tc6393xb_irq_ack, + .mask = tc6393xb_irq_mask, + .unmask = tc6393xb_irq_unmask, +}; + +static void tc6393xb_attach_irq(struct platform_device *dev) +{ + struct tc6393xb *tc6393xb = platform_get_drvdata(dev); + unsigned int irq, irq_base; + + irq_base = tc6393xb->irq_base; + + for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) { + set_irq_chip(irq, &tc6393xb_chip); + set_irq_chip_data(irq, tc6393xb); + set_irq_handler(irq, handle_edge_irq); + set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + } + + set_irq_type(tc6393xb->irq, IRQT_FALLING); + set_irq_data(tc6393xb->irq, tc6393xb); + set_irq_chained_handler(tc6393xb->irq, tc6393xb_irq); +} + +static void tc6393xb_detach_irq(struct platform_device *dev) +{ + struct tc6393xb *tc6393xb = platform_get_drvdata(dev); + unsigned int irq, irq_base; + + set_irq_chained_handler(tc6393xb->irq, NULL); + set_irq_data(tc6393xb->irq, NULL); + + irq_base = tc6393xb->irq_base; + + for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) { + set_irq_flags(irq, 0); + set_irq_chip(irq, NULL); + set_irq_chip_data(irq, NULL); + } +} + +/*--------------------------------------------------------------------------*/ + +static int tc6393xb_hw_init(struct platform_device *dev) +{ + struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; + struct tc6393xb *tc6393xb = platform_get_drvdata(dev); + int i; + + iowrite8(tc6393xb->suspend_state.fer, tc6393xb->scr + SCR_FER); + iowrite16(tcpd->scr_pll2cr, tc6393xb->scr + SCR_PLL2CR); + iowrite16(tc6393xb->suspend_state.ccr, tc6393xb->scr + SCR_CCR); + iowrite16(SCR_MCR_RDY_OPENDRAIN | SCR_MCR_RDY_UNK | SCR_MCR_RDY_EN | + SCR_MCR_INT_OPENDRAIN | SCR_MCR_INT_UNK | SCR_MCR_INT_EN | + BIT(15), tc6393xb->scr + SCR_MCR); + iowrite16(tcpd->scr_gper, tc6393xb->scr + SCR_GPER); + iowrite8(0, tc6393xb->scr + SCR_IRR); + iowrite8(0xbf, tc6393xb->scr + SCR_IMR); + + for (i = 0; i < 3; i++) { + iowrite8(tc6393xb->suspend_state.gpo_dsr[i], + tc6393xb->scr + SCR_GPO_DSR(i)); + iowrite8(tc6393xb->suspend_state.gpo_doecr[i], + tc6393xb->scr + SCR_GPO_DOECR(i)); + iowrite8(tc6393xb->suspend_state.gpi_bcr[i], + tc6393xb->scr + SCR_GPI_BCR(i)); + } + + return 0; +} + +static int __devinit tc6393xb_probe(struct platform_device *dev) +{ + struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; + struct tc6393xb *tc6393xb; + struct resource *iomem; + struct resource *rscr; + int retval, temp; + int i; + + iomem = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!iomem) + return -EINVAL; + + tc6393xb = kzalloc(sizeof *tc6393xb, GFP_KERNEL); + if (!tc6393xb) { + retval = -ENOMEM; + goto err_kzalloc; + } + + spin_lock_init(&tc6393xb->lock); + + platform_set_drvdata(dev, tc6393xb); + tc6393xb->iomem = iomem; + tc6393xb->irq = platform_get_irq(dev, 0); + tc6393xb->irq_base = tcpd->irq_base; + + tc6393xb->clk = clk_get(&dev->dev, "GPIO27_CLK" /* "CK3P6MI" */); + if (IS_ERR(tc6393xb->clk)) { + retval = PTR_ERR(tc6393xb->clk); + goto err_clk_get; + } + + rscr = &tc6393xb->rscr; + rscr->name = "tc6393xb-core"; + rscr->start = iomem->start; + rscr->end = iomem->start + 0xff; + rscr->flags = IORESOURCE_MEM; + + retval = request_resource(iomem, rscr); + if (retval) + goto err_request_scr; + + tc6393xb->scr = ioremap(rscr->start, rscr->end - rscr->start + 1); + if (!tc6393xb->scr) { + retval = -ENOMEM; + goto err_ioremap; + } + + retval = clk_enable(tc6393xb->clk); + if (retval) + goto err_clk_enable; + + retval = tcpd->enable(dev); + if (retval) + goto err_enable; + + tc6393xb->suspend_state.fer = 0; + for (i = 0; i < 3; i++) { + tc6393xb->suspend_state.gpo_dsr[i] = + (tcpd->scr_gpo_dsr >> (8 * i)) & 0xff; + tc6393xb->suspend_state.gpo_doecr[i] = + (tcpd->scr_gpo_doecr >> (8 * i)) & 0xff; + } + /* + * It may be necessary to change this back to + * platform-dependant code + */ + tc6393xb->suspend_state.ccr = SCR_CCR_UNK1 | + SCR_CCR_HCLK_48; + + retval = tc6393xb_hw_init(dev); + if (retval) + goto err_hw_init; + + printk(KERN_INFO "Toshiba tc6393xb revision %d at 0x%08lx, irq %d\n", + ioread8(tc6393xb->scr + SCR_REVID), + (unsigned long) iomem->start, tc6393xb->irq); + + tc6393xb->gpio.base = -1; + + if (tcpd->gpio_base >= 0) { + retval = tc6393xb_register_gpio(tc6393xb, tcpd->gpio_base); + if (retval) + goto err_gpio_add; + } + + if (tc6393xb->irq) + tc6393xb_attach_irq(dev); + + return 0; + + if (tc6393xb->irq) + tc6393xb_detach_irq(dev); + +err_gpio_add: + if (tc6393xb->gpio.base != -1) + temp = gpiochip_remove(&tc6393xb->gpio); +err_hw_init: + tcpd->disable(dev); +err_clk_enable: + clk_disable(tc6393xb->clk); +err_enable: + iounmap(tc6393xb->scr); +err_ioremap: + release_resource(&tc6393xb->rscr); +err_request_scr: + clk_put(tc6393xb->clk); +err_clk_get: + kfree(tc6393xb); +err_kzalloc: + return retval; +} + +static int __devexit tc6393xb_remove(struct platform_device *dev) +{ + struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; + struct tc6393xb *tc6393xb = platform_get_drvdata(dev); + int ret; + + if (tc6393xb->irq) + tc6393xb_detach_irq(dev); + + if (tc6393xb->gpio.base != -1) { + ret = gpiochip_remove(&tc6393xb->gpio); + if (ret) { + dev_err(&dev->dev, "Can't remove gpio chip: %d\n", ret); + return ret; + } + } + + ret = tcpd->disable(dev); + + clk_disable(tc6393xb->clk); + + iounmap(tc6393xb->scr); + + release_resource(&tc6393xb->rscr); + + platform_set_drvdata(dev, NULL); + + clk_put(tc6393xb->clk); + + kfree(tc6393xb); + + return ret; +} + +#ifdef CONFIG_PM +static int tc6393xb_suspend(struct platform_device *dev, pm_message_t state) +{ + struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; + struct tc6393xb *tc6393xb = platform_get_drvdata(dev); + int i; + + + tc6393xb->suspend_state.ccr = ioread16(tc6393xb->scr + SCR_CCR); + tc6393xb->suspend_state.fer = ioread8(tc6393xb->scr + SCR_FER); + + for (i = 0; i < 3; i++) { + tc6393xb->suspend_state.gpo_dsr[i] = + ioread8(tc6393xb->scr + SCR_GPO_DSR(i)); + tc6393xb->suspend_state.gpo_doecr[i] = + ioread8(tc6393xb->scr + SCR_GPO_DOECR(i)); + tc6393xb->suspend_state.gpi_bcr[i] = + ioread8(tc6393xb->scr + SCR_GPI_BCR(i)); + } + + return tcpd->suspend(dev); +} + +static int tc6393xb_resume(struct platform_device *dev) +{ + struct tc6393xb_platform_data *tcpd = dev->dev.platform_data; + int ret = tcpd->resume(dev); + + if (ret) + return ret; + + return tc6393xb_hw_init(dev); +} +#else +#define tc6393xb_suspend NULL +#define tc6393xb_resume NULL +#endif + +static struct platform_driver tc6393xb_driver = { + .probe = tc6393xb_probe, + .remove = __devexit_p(tc6393xb_remove), + .suspend = tc6393xb_suspend, + .resume = tc6393xb_resume, + + .driver = { + .name = "tc6393xb", + .owner = THIS_MODULE, + }, +}; + +static int __init tc6393xb_init(void) +{ + return platform_driver_register(&tc6393xb_driver); +} + +static void __exit tc6393xb_exit(void) +{ + platform_driver_unregister(&tc6393xb_driver); +} + +subsys_initcall(tc6393xb_init); +module_exit(tc6393xb_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov and Dirk Opfer"); +MODULE_DESCRIPTION("tc6393xb Toshiba Mobile IO Controller"); +MODULE_ALIAS("platform:tc6393xb"); diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h new file mode 100644 index 000000000000..0e3dd4ca523b --- /dev/null +++ b/include/linux/mfd/tc6393xb.h @@ -0,0 +1,47 @@ +/* + * Toshiba TC6393XB SoC support + * + * Copyright(c) 2005-2006 Chris Humbert + * Copyright(c) 2005 Dirk Opfer + * Copyright(c) 2005 Ian Molton + * Copyright(c) 2007 Dmitry Baryshkov + * + * Based on code written by Sharp/Lineo for 2.4 kernels + * Based on locomo.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef TC6393XB_H +#define TC6393XB_H + +/* Also one should provide the CK3P6MI clock */ +struct tc6393xb_platform_data { + u16 scr_pll2cr; /* PLL2 Control */ + u16 scr_gper; /* GP Enable */ + u32 scr_gpo_doecr; /* GPO Data OE Control */ + u32 scr_gpo_dsr; /* GPO Data Set */ + + int (*enable)(struct platform_device *dev); + int (*disable)(struct platform_device *dev); + int (*suspend)(struct platform_device *dev); + int (*resume)(struct platform_device *dev); + + int irq_base; /* a base for cascaded irq */ + int gpio_base; +}; + +/* + * Relative to irq_base + */ +#define IRQ_TC6393_NAND 0 +#define IRQ_TC6393_MMC 1 +#define IRQ_TC6393_OHCI 2 +#define IRQ_TC6393_SERIAL 3 +#define IRQ_TC6393_FB 4 + +#define TC6393XB_NR_IRQS 8 + +#endif -- cgit v1.2.3 From bf0116e54e185fd63025f2b975f0f1616ffe41f1 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 14 Jun 2008 11:42:02 +0100 Subject: [ARM] 5097/1: Tosa: support TC6393XB device Add definitions for Toshiba TC6393XB companion chip and register the tc6393xb device. Signed-off-by: Dmitry Baryshkov Signed-off-by: Russell King --- arch/arm/mach-pxa/tosa.c | 127 ++++++++++++++++++++++++++++++++++++++++ include/asm-arm/arch-pxa/irqs.h | 1 + include/asm-arm/arch-pxa/tosa.h | 44 +++++++++----- 3 files changed, 158 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c index 7a89f764acf3..2fe0998ac3fb 100644 --- a/arch/arm/mach-pxa/tosa.c +++ b/arch/arm/mach-pxa/tosa.c @@ -18,7 +18,10 @@ #include #include #include +#include +#include #include +#include #include #include #include @@ -509,9 +512,127 @@ static struct platform_device tosaled_device = { }, }; +/* + * Toshiba Mobile IO Controller + */ +static struct resource tc6393xb_resources[] = { + [0] = { + .start = TOSA_LCDC_PHYS, + .end = TOSA_LCDC_PHYS + 0x3ffffff, + .flags = IORESOURCE_MEM, + }, + + [1] = { + .start = TOSA_IRQ_GPIO_TC6393XB_INT, + .end = TOSA_IRQ_GPIO_TC6393XB_INT, + .flags = IORESOURCE_IRQ, + }, +}; + + +static int tosa_tc6393xb_enable(struct platform_device *dev) +{ + int rc; + + rc = gpio_request(TOSA_GPIO_TC6393XB_REST_IN, "tc6393xb #pclr"); + if (rc) + goto err_req_pclr; + rc = gpio_request(TOSA_GPIO_TC6393XB_SUSPEND, "tc6393xb #suspend"); + if (rc) + goto err_req_suspend; + rc = gpio_request(TOSA_GPIO_TC6393XB_L3V_ON, "l3v"); + if (rc) + goto err_req_l3v; + rc = gpio_direction_output(TOSA_GPIO_TC6393XB_L3V_ON, 0); + if (rc) + goto err_dir_l3v; + rc = gpio_direction_output(TOSA_GPIO_TC6393XB_SUSPEND, 0); + if (rc) + goto err_dir_suspend; + rc = gpio_direction_output(TOSA_GPIO_TC6393XB_REST_IN, 0); + if (rc) + goto err_dir_pclr; + + mdelay(1); + + gpio_set_value(TOSA_GPIO_TC6393XB_SUSPEND, 1); + + mdelay(10); + + gpio_set_value(TOSA_GPIO_TC6393XB_REST_IN, 1); + gpio_set_value(TOSA_GPIO_TC6393XB_L3V_ON, 1); + + return 0; +err_dir_pclr: +err_dir_suspend: +err_dir_l3v: + gpio_free(TOSA_GPIO_TC6393XB_L3V_ON); +err_req_l3v: + gpio_free(TOSA_GPIO_TC6393XB_SUSPEND); +err_req_suspend: + gpio_free(TOSA_GPIO_TC6393XB_REST_IN); +err_req_pclr: + return rc; +} + +static int tosa_tc6393xb_disable(struct platform_device *dev) +{ + gpio_free(TOSA_GPIO_TC6393XB_L3V_ON); + gpio_free(TOSA_GPIO_TC6393XB_SUSPEND); + gpio_free(TOSA_GPIO_TC6393XB_REST_IN); + + return 0; +} + +static int tosa_tc6393xb_resume(struct platform_device *dev) +{ + gpio_set_value(TOSA_GPIO_TC6393XB_SUSPEND, 1); + mdelay(10); + gpio_set_value(TOSA_GPIO_TC6393XB_L3V_ON, 1); + mdelay(10); + + return 0; +} + +static int tosa_tc6393xb_suspend(struct platform_device *dev) +{ + gpio_set_value(TOSA_GPIO_TC6393XB_L3V_ON, 0); + gpio_set_value(TOSA_GPIO_TC6393XB_SUSPEND, 0); + return 0; +} + +static struct tc6393xb_platform_data tosa_tc6393xb_setup = { + .scr_pll2cr = 0x0cc1, + .scr_gper = 0x3300, + .scr_gpo_dsr = + TOSA_TC6393XB_GPIO_BIT(TOSA_GPIO_CARD_VCC_ON), + .scr_gpo_doecr = + TOSA_TC6393XB_GPIO_BIT(TOSA_GPIO_CARD_VCC_ON), + + .irq_base = IRQ_BOARD_START, + .gpio_base = TOSA_TC6393XB_GPIO_BASE, + + .enable = tosa_tc6393xb_enable, + .disable = tosa_tc6393xb_disable, + .suspend = tosa_tc6393xb_suspend, + .resume = tosa_tc6393xb_resume, +}; + + +static struct platform_device tc6393xb_device = { + .name = "tc6393xb", + .id = -1, + .dev = { + .platform_data = &tosa_tc6393xb_setup, + }, + .num_resources = ARRAY_SIZE(tc6393xb_resources), + .resource = tc6393xb_resources, +}; + static struct platform_device *devices[] __initdata = { &tosascoop_device, &tosascoop_jc_device, + &tc6393xb_device, &tosakbd_device, &tosa_gpio_keys_device, &tosaled_device, @@ -533,6 +654,8 @@ static void tosa_restart(char mode) static void __init tosa_init(void) { + int dummy; + pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_config)); pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_irda_off)); gpio_set_wake(MFP_PIN_GPIO1, 1); @@ -548,6 +671,10 @@ static void __init tosa_init(void) /* enable batt_fault */ PMCR = 0x01; + dummy = gpiochip_reserve(TOSA_SCOOP_GPIO_BASE, 12); + dummy = gpiochip_reserve(TOSA_SCOOP_JC_GPIO_BASE, 12); + dummy = gpiochip_reserve(TOSA_TC6393XB_GPIO_BASE, 16); + pxa_set_mci_info(&tosa_mci_platform_data); pxa_set_udc_info(&udc_info); pxa_set_ficp_info(&tosa_ficp_platform_data); diff --git a/include/asm-arm/arch-pxa/irqs.h b/include/asm-arm/arch-pxa/irqs.h index b6c8fe377683..fa05e76f64e8 100644 --- a/include/asm-arm/arch-pxa/irqs.h +++ b/include/asm-arm/arch-pxa/irqs.h @@ -180,6 +180,7 @@ #define NR_IRQS (IRQ_LOCOMO_SPI_TEND + 1) #elif defined(CONFIG_ARCH_LUBBOCK) || \ defined(CONFIG_MACH_LOGICPD_PXA270) || \ + defined(CONFIG_MACH_TOSA) || \ defined(CONFIG_MACH_MAINSTONE) || \ defined(CONFIG_MACH_PCM027) || \ defined(CONFIG_MACH_MAGICIAN) diff --git a/include/asm-arm/arch-pxa/tosa.h b/include/asm-arm/arch-pxa/tosa.h index 188226216154..a16c103b7251 100644 --- a/include/asm-arm/arch-pxa/tosa.h +++ b/include/asm-arm/arch-pxa/tosa.h @@ -25,7 +25,7 @@ */ #define TOSA_SCOOP_GPIO_BASE NR_BUILTIN_GPIO #define TOSA_SCOOP_PXA_VCORE1 SCOOP_GPCR_PA11 -#define TOSA_SCOOP_TC6393_REST_IN SCOOP_GPCR_PA12 +#define TOSA_GPIO_TC6393XB_REST_IN (TOSA_SCOOP_GPIO_BASE + 1) #define TOSA_GPIO_IR_POWERDWN (TOSA_SCOOP_GPIO_BASE + 2) #define TOSA_GPIO_SD_WP (TOSA_SCOOP_GPIO_BASE + 3) #define TOSA_GPIO_PWR_ON (TOSA_SCOOP_GPIO_BASE + 4) @@ -35,11 +35,9 @@ #define TOSA_SCOOP_AC_IN_OL SCOOP_GPCR_PA19 /* GPIO Direction 1 : output mode / 0:input mode */ -#define TOSA_SCOOP_IO_DIR ( TOSA_SCOOP_PXA_VCORE1 | TOSA_SCOOP_TC6393_REST_IN | \ +#define TOSA_SCOOP_IO_DIR (TOSA_SCOOP_PXA_VCORE1 | \ TOSA_SCOOP_AUD_PWR_ON |\ - TOSA_SCOOP_BT_RESET | TOSA_SCOOP_BT_PWR_EN ) -/* GPIO out put level when init 1: Hi */ -#define TOSA_SCOOP_IO_OUT ( TOSA_SCOOP_TC6393_REST_IN ) + TOSA_SCOOP_BT_RESET | TOSA_SCOOP_BT_PWR_EN) /* * SCOOP2 jacket GPIOs @@ -49,16 +47,34 @@ #define TOSA_GPIO_NOTE_LED (TOSA_SCOOP_JC_GPIO_BASE + 1) #define TOSA_GPIO_CHRG_ERR_LED (TOSA_SCOOP_JC_GPIO_BASE + 2) #define TOSA_GPIO_USB_PULLUP (TOSA_SCOOP_JC_GPIO_BASE + 3) -#define TOSA_SCOOP_JC_TC6393_SUSPEND SCOOP_GPCR_PA15 -#define TOSA_SCOOP_JC_TC3693_L3V_ON SCOOP_GPCR_PA16 +#define TOSA_GPIO_TC6393XB_SUSPEND (TOSA_SCOOP_JC_GPIO_BASE + 4) +#define TOSA_GPIO_TC6393XB_L3V_ON (TOSA_SCOOP_JC_GPIO_BASE + 5) #define TOSA_SCOOP_JC_WLAN_DETECT SCOOP_GPCR_PA17 #define TOSA_GPIO_WLAN_LED (TOSA_SCOOP_JC_GPIO_BASE + 7) #define TOSA_SCOOP_JC_CARD_LIMIT_SEL SCOOP_GPCR_PA19 /* GPIO Direction 1 : output mode / 0:input mode */ -#define TOSA_SCOOP_JC_IO_DIR ( \ - TOSA_SCOOP_JC_TC6393_SUSPEND | TOSA_SCOOP_JC_TC3693_L3V_ON | \ - TOSA_SCOOP_JC_CARD_LIMIT_SEL ) +#define TOSA_SCOOP_JC_IO_DIR (TOSA_SCOOP_JC_CARD_LIMIT_SEL) + +/* + * TC6393XB GPIOs + */ +#define TOSA_TC6393XB_GPIO_BASE (NR_BUILTIN_GPIO + 2 * 12) +#define TOSA_TC6393XB_GPIO(i) (TOSA_TC6393XB_GPIO_BASE + (i)) +#define TOSA_TC6393XB_GPIO_BIT(gpio) (1 << (gpio - TOSA_TC6393XB_GPIO_BASE)) + +#define TOSA_GPIO_TG_ON (TOSA_TC6393XB_GPIO_BASE + 0) +#define TOSA_GPIO_L_MUTE (TOSA_TC6393XB_GPIO_BASE + 1) +#define TOSA_GPIO_BL_C20MA (TOSA_TC6393XB_GPIO_BASE + 3) +#define TOSA_GPIO_CARD_VCC_ON (TOSA_TC6393XB_GPIO_BASE + 4) +#define TOSA_GPIO_CHARGE_OFF (TOSA_TC6393XB_GPIO_BASE + 6) +#define TOSA_GPIO_CHARGE_OFF_JC (TOSA_TC6393XB_GPIO_BASE + 7) +#define TOSA_GPIO_BAT0_V_ON (TOSA_TC6393XB_GPIO_BASE + 9) +#define TOSA_GPIO_BAT1_V_ON (TOSA_TC6393XB_GPIO_BASE + 10) +#define TOSA_GPIO_BU_CHRG_ON (TOSA_TC6393XB_GPIO_BASE + 11) +#define TOSA_GPIO_BAT_SW_ON (TOSA_TC6393XB_GPIO_BASE + 12) +#define TOSA_GPIO_BAT0_TH_ON (TOSA_TC6393XB_GPIO_BASE + 14) +#define TOSA_GPIO_BAT1_TH_ON (TOSA_TC6393XB_GPIO_BASE + 15) /* * Timing Generator @@ -84,13 +100,13 @@ #define TOSA_GPIO_JACKET_DETECT (7) #define TOSA_GPIO_nSD_DETECT (9) #define TOSA_GPIO_nSD_INT (10) -#define TOSA_GPIO_TC6393_CLK (11) +#define TOSA_GPIO_TC6393XB_CLK (11) #define TOSA_GPIO_BAT1_CRG (12) #define TOSA_GPIO_CF_CD (13) #define TOSA_GPIO_BAT0_CRG (14) -#define TOSA_GPIO_TC6393_INT (15) +#define TOSA_GPIO_TC6393XB_INT (15) #define TOSA_GPIO_BAT0_LOW (17) -#define TOSA_GPIO_TC6393_RDY (18) +#define TOSA_GPIO_TC6393XB_RDY (18) #define TOSA_GPIO_ON_RESET (19) #define TOSA_GPIO_EAR_IN (20) #define TOSA_GPIO_CF_IRQ (21) /* CF slot0 Ready */ @@ -138,7 +154,7 @@ #define TOSA_IRQ_GPIO_BAT1_CRG IRQ_GPIO(TOSA_GPIO_BAT1_CRG) #define TOSA_IRQ_GPIO_CF_CD IRQ_GPIO(TOSA_GPIO_CF_CD) #define TOSA_IRQ_GPIO_BAT0_CRG IRQ_GPIO(TOSA_GPIO_BAT0_CRG) -#define TOSA_IRQ_GPIO_TC6393_INT IRQ_GPIO(TOSA_GPIO_TC6393_INT) +#define TOSA_IRQ_GPIO_TC6393XB_INT IRQ_GPIO(TOSA_GPIO_TC6393XB_INT) #define TOSA_IRQ_GPIO_BAT0_LOW IRQ_GPIO(TOSA_GPIO_BAT0_LOW) #define TOSA_IRQ_GPIO_EAR_IN IRQ_GPIO(TOSA_GPIO_EAR_IN) #define TOSA_IRQ_GPIO_CF_IRQ IRQ_GPIO(TOSA_GPIO_CF_IRQ) -- cgit v1.2.3 From aa613de676986f136fa6f48a4d709b5d264f4f38 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 27 Jun 2008 10:37:19 +0100 Subject: [ARM] 5127/1: Core MFD support This patch provides a common subdevice registration system for MFD type chips, using platfrom device. Signed-off-by: Ian Molton Signed-off-by: Dmitry Baryshkov Signed-off-by: Russell King --- drivers/mfd/Kconfig | 4 ++ drivers/mfd/Makefile | 2 + drivers/mfd/mfd-core.c | 114 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/core.h | 55 +++++++++++++++++++++++ 4 files changed, 175 insertions(+) create mode 100644 drivers/mfd/mfd-core.c create mode 100644 include/linux/mfd/core.h (limited to 'include') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1a1ac262fc87..8ebc0be10953 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -5,6 +5,10 @@ menu "Multifunction device drivers" depends on HAS_IOMEM +config MFD_CORE + tristate + default n + config MFD_SM501 tristate "Support for Silicon Motion SM501" ---help--- diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index b4168442d53c..33daa2f45dd8 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -10,6 +10,8 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o obj-$(CONFIG_MFD_TC6393XB) += tc6393xb.o +obj-$(CONFIG_MFD_CORE) += mfd-core.o + obj-$(CONFIG_MCP) += mcp-core.o obj-$(CONFIG_MCP_SA11X0) += mcp-sa11x0.o obj-$(CONFIG_MCP_UCB1200) += ucb1x00-core.o diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c new file mode 100644 index 000000000000..d7d88ce053a6 --- /dev/null +++ b/drivers/mfd/mfd-core.c @@ -0,0 +1,114 @@ +/* + * drivers/mfd/mfd-core.c + * + * core MFD support + * Copyright (c) 2006 Ian Molton + * Copyright (c) 2007,2008 Dmitry Baryshkov + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include + +static int mfd_add_device(struct platform_device *parent, + const struct mfd_cell *cell, + struct resource *mem_base, + int irq_base) +{ + struct resource res[cell->num_resources]; + struct platform_device *pdev; + int ret = -ENOMEM; + int r; + + pdev = platform_device_alloc(cell->name, parent->id); + if (!pdev) + goto fail_alloc; + + pdev->dev.parent = &parent->dev; + + ret = platform_device_add_data(pdev, + cell, sizeof(struct mfd_cell)); + if (ret) + goto fail_device; + + memzero(res, sizeof(res)); + for (r = 0; r < cell->num_resources; r++) { + res[r].name = cell->resources[r].name; + res[r].flags = cell->resources[r].flags; + + /* Find out base to use */ + if (cell->resources[r].flags & IORESOURCE_MEM) { + res[r].parent = mem_base; + res[r].start = mem_base->start + + cell->resources[r].start; + res[r].end = mem_base->start + + cell->resources[r].end; + } else if (cell->resources[r].flags & IORESOURCE_IRQ) { + res[r].start = irq_base + + cell->resources[r].start; + res[r].end = irq_base + + cell->resources[r].end; + } else { + res[r].parent = cell->resources[r].parent; + res[r].start = cell->resources[r].start; + res[r].end = cell->resources[r].end; + } + } + + platform_device_add_resources(pdev, res, cell->num_resources); + + ret = platform_device_add(pdev); + if (ret) + goto fail_device; + + return 0; + +/* platform_device_del(pdev); */ +fail_device: + platform_device_put(pdev); +fail_alloc: + return ret; +} + +int mfd_add_devices( + struct platform_device *parent, + const struct mfd_cell *cells, int n_devs, + struct resource *mem_base, + int irq_base) +{ + int i; + int ret = 0; + + for (i = 0; i < n_devs; i++) { + ret = mfd_add_device(parent, cells + i, mem_base, irq_base); + if (ret) + break; + } + + if (ret) + mfd_remove_devices(parent); + + return ret; +} +EXPORT_SYMBOL(mfd_add_devices); + +static int mfd_remove_devices_fn(struct device *dev, void *unused) +{ + platform_device_unregister( + container_of(dev, struct platform_device, dev)); + return 0; +} + +void mfd_remove_devices(struct platform_device *parent) +{ + device_for_each_child(&parent->dev, NULL, mfd_remove_devices_fn); +} +EXPORT_SYMBOL(mfd_remove_devices); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov"); diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h new file mode 100644 index 000000000000..bb3dd0545928 --- /dev/null +++ b/include/linux/mfd/core.h @@ -0,0 +1,55 @@ +#ifndef MFD_CORE_H +#define MFD_CORE_H +/* + * drivers/mfd/mfd-core.h + * + * core MFD support + * Copyright (c) 2006 Ian Molton + * Copyright (c) 2007 Dmitry Baryshkov + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include + +/* + * This struct describes the MFD part ("cell"). + * After registration the copy of this structure will become the platform data + * of the resulting platform_device + */ +struct mfd_cell { + const char *name; + + int (*enable)(struct platform_device *dev); + int (*disable)(struct platform_device *dev); + int (*suspend)(struct platform_device *dev); + int (*resume)(struct platform_device *dev); + + void *driver_data; /* driver-specific data */ + + /* + * This resources can be specified relatievly to the parent device. + * For accessing device you should use resources from device + */ + int num_resources; + const struct resource *resources; +}; + +static inline struct mfd_cell * +mfd_get_cell(struct platform_device *pdev) +{ + return (struct mfd_cell *)pdev->dev.platform_data; +} + +extern int mfd_add_devices( + struct platform_device *parent, + const struct mfd_cell *cells, int n_devs, + struct resource *mem_base, + int irq_base); + +extern void mfd_remove_devices(struct platform_device *parent); + +#endif -- cgit v1.2.3 From f024ff10b1ab13da4d626366019fd05c49721af7 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 27 Jun 2008 10:37:57 +0100 Subject: [ARM] 5128/1: tc6393xb: tmio-nand support Signed-off-by: Dmitry Baryshkov Signed-off-by: Russell King --- drivers/mfd/Kconfig | 1 + drivers/mfd/tc6393xb.c | 63 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/tc6393xb.h | 2 ++ include/linux/mfd/tmio.h | 17 ++++++++++++ 4 files changed, 83 insertions(+) create mode 100644 include/linux/mfd/tmio.h (limited to 'include') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 8ebc0be10953..7dff105e8f83 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -45,6 +45,7 @@ config HTC_PASIC3 config MFD_TC6393XB bool "Support Toshiba TC6393XB" depends on HAVE_GPIO_LIB + select MFD_CORE help Support for Toshiba Mobile IO Controller TC6393XB diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c index 4d7192edefe1..2d87501b6fd4 100644 --- a/drivers/mfd/tc6393xb.c +++ b/drivers/mfd/tc6393xb.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #include #include @@ -108,6 +110,59 @@ struct tc6393xb { int irq_base; }; +enum { + TC6393XB_CELL_NAND, +}; + +/*--------------------------------------------------------------------------*/ + +static int tc6393xb_nand_enable(struct platform_device *nand) +{ + struct platform_device *dev = to_platform_device(nand->dev.parent); + struct tc6393xb *tc6393xb = platform_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&tc6393xb->lock, flags); + + /* SMD buffer on */ + dev_dbg(&dev->dev, "SMD buffer on\n"); + iowrite8(0xff, tc6393xb->scr + SCR_GPI_BCR(1)); + + spin_unlock_irqrestore(&tc6393xb->lock, flags); + + return 0; +} + +static struct resource __devinitdata tc6393xb_nand_resources[] = { + { + .name = TMIO_NAND_CONFIG, + .start = 0x0100, + .end = 0x01ff, + .flags = IORESOURCE_MEM, + }, + { + .name = TMIO_NAND_CONTROL, + .start = 0x1000, + .end = 0x1007, + .flags = IORESOURCE_MEM, + }, + { + .name = TMIO_NAND_IRQ, + .start = IRQ_TC6393_NAND, + .end = IRQ_TC6393_NAND, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell __devinitdata tc6393xb_cells[] = { + [TC6393XB_CELL_NAND] = { + .name = "tmio-nand", + .enable = tc6393xb_nand_enable, + .num_resources = ARRAY_SIZE(tc6393xb_nand_resources), + .resources = tc6393xb_nand_resources, + }, +}; + /*--------------------------------------------------------------------------*/ static int tc6393xb_gpio_get(struct gpio_chip *chip, @@ -410,6 +465,12 @@ static int __devinit tc6393xb_probe(struct platform_device *dev) if (tc6393xb->irq) tc6393xb_attach_irq(dev); + tc6393xb_cells[TC6393XB_CELL_NAND].driver_data = tcpd->nand_data; + + retval = mfd_add_devices(dev, + tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells), + iomem, tcpd->irq_base); + return 0; if (tc6393xb->irq) @@ -440,6 +501,8 @@ static int __devexit tc6393xb_remove(struct platform_device *dev) struct tc6393xb *tc6393xb = platform_get_drvdata(dev); int ret; + mfd_remove_devices(dev); + if (tc6393xb->irq) tc6393xb_detach_irq(dev); diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index 0e3dd4ca523b..7cc824a58f7c 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -31,6 +31,8 @@ struct tc6393xb_platform_data { int irq_base; /* a base for cascaded irq */ int gpio_base; + + struct tmio_nand_data *nand_data; }; /* diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h new file mode 100644 index 000000000000..9438d8c9ac1c --- /dev/null +++ b/include/linux/mfd/tmio.h @@ -0,0 +1,17 @@ +#ifndef MFD_TMIO_H +#define MFD_TMIO_H + +/* + * data for the NAND controller + */ +struct tmio_nand_data { + struct nand_bbt_descr *badblock_pattern; + struct mtd_partition *partition; + unsigned int num_partitions; +}; + +#define TMIO_NAND_CONFIG "tmio-nand-config" +#define TMIO_NAND_CONTROL "tmio-nand-control" +#define TMIO_NAND_IRQ "tmio-nand" + +#endif -- cgit v1.2.3 From 16b32fd0a35b30cbd67395cfcbd360354db44f39 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 5 Jul 2008 09:02:48 +0100 Subject: [ARM] 5150/1: Tosa: support built-in bluetooth power-up The driver is pretty much generic and will be later shared with a few other devices, like hx4700 ipaq. Signed-off-by: Dmitry Baryshkov Signed-off-by: Russell King --- arch/arm/mach-pxa/Kconfig | 8 ++ arch/arm/mach-pxa/Makefile | 2 + arch/arm/mach-pxa/tosa-bt.c | 150 +++++++++++++++++++++++++++++++++++++ arch/arm/mach-pxa/tosa.c | 17 ++++- include/asm-arm/arch-pxa/tosa.h | 7 +- include/asm-arm/arch-pxa/tosa_bt.h | 22 ++++++ 6 files changed, 201 insertions(+), 5 deletions(-) create mode 100644 arch/arm/mach-pxa/tosa-bt.c create mode 100644 include/asm-arm/arch-pxa/tosa_bt.h (limited to 'include') diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 5da7a6820492..6c162f8fdcea 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -273,4 +273,12 @@ config PXA_SSP tristate help Enable support for PXA2xx SSP ports + +config TOSA_BT + tristate "Control the state of built-in bluetooth chip on Sharp SL-6000" + depends on MACH_TOSA + select RFKILL + help + This is a simple driver that is able to control + the state of built in bluetooth chip on tosa. endif diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index c9e66fbe622e..18e0b249f7ca 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -58,3 +58,5 @@ obj-$(CONFIG_LEDS) += $(led-y) ifeq ($(CONFIG_PCI),y) obj-$(CONFIG_MACH_ARMCORE) += cm-x270-pci.o endif + +obj-$(CONFIG_TOSA_BT) += tosa-bt.o diff --git a/arch/arm/mach-pxa/tosa-bt.c b/arch/arm/mach-pxa/tosa-bt.c new file mode 100644 index 000000000000..7d8505466e54 --- /dev/null +++ b/arch/arm/mach-pxa/tosa-bt.c @@ -0,0 +1,150 @@ +/* + * Bluetooth built-in chip control + * + * Copyright (c) 2008 Dmitry Baryshkov + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include + +#include + +static void tosa_bt_on(struct tosa_bt_data *data) +{ + gpio_set_value(data->gpio_reset, 0); + gpio_set_value(data->gpio_pwr, 1); + gpio_set_value(data->gpio_reset, 1); + mdelay(20); + gpio_set_value(data->gpio_reset, 0); +} + +static void tosa_bt_off(struct tosa_bt_data *data) +{ + gpio_set_value(data->gpio_reset, 1); + mdelay(10); + gpio_set_value(data->gpio_pwr, 0); + gpio_set_value(data->gpio_reset, 0); +} + +static int tosa_bt_toggle_radio(void *data, enum rfkill_state state) +{ + pr_info("BT_RADIO going: %s\n", + state == RFKILL_STATE_ON ? "on" : "off"); + + if (state == RFKILL_STATE_ON) { + pr_info("TOSA_BT: going ON\n"); + tosa_bt_on(data); + } else { + pr_info("TOSA_BT: going OFF\n"); + tosa_bt_off(data); + } + return 0; +} + +static int tosa_bt_probe(struct platform_device *dev) +{ + int rc; + struct rfkill *rfk; + + struct tosa_bt_data *data = dev->dev.platform_data; + + rc = gpio_request(data->gpio_reset, "Bluetooth reset"); + if (rc) + goto err_reset; + rc = gpio_direction_output(data->gpio_reset, 0); + if (rc) + goto err_reset_dir; + rc = gpio_request(data->gpio_pwr, "Bluetooth power"); + if (rc) + goto err_pwr; + rc = gpio_direction_output(data->gpio_pwr, 0); + if (rc) + goto err_pwr_dir; + + rfk = rfkill_allocate(&dev->dev, RFKILL_TYPE_BLUETOOTH); + if (!rfk) { + rc = -ENOMEM; + goto err_rfk_alloc; + } + + rfk->name = "tosa-bt"; + rfk->toggle_radio = tosa_bt_toggle_radio; + rfk->data = data; +#ifdef CONFIG_RFKILL_LEDS + rfk->led_trigger.name = "tosa-bt"; +#endif + + rc = rfkill_register(rfk); + if (rc) + goto err_rfkill; + + platform_set_drvdata(dev, rfk); + + return 0; + +err_rfkill: + if (rfk) + rfkill_free(rfk); + rfk = NULL; +err_rfk_alloc: + tosa_bt_off(data); +err_pwr_dir: + gpio_free(data->gpio_pwr); +err_pwr: +err_reset_dir: + gpio_free(data->gpio_reset); +err_reset: + return rc; +} + +static int __devexit tosa_bt_remove(struct platform_device *dev) +{ + struct tosa_bt_data *data = dev->dev.platform_data; + struct rfkill *rfk = platform_get_drvdata(dev); + + platform_set_drvdata(dev, NULL); + + if (rfk) + rfkill_unregister(rfk); + rfk = NULL; + + tosa_bt_off(data); + + gpio_free(data->gpio_pwr); + gpio_free(data->gpio_reset); + + return 0; +} + +static struct platform_driver tosa_bt_driver = { + .probe = tosa_bt_probe, + .remove = __devexit_p(tosa_bt_remove), + + .driver = { + .name = "tosa-bt", + .owner = THIS_MODULE, + }, +}; + + +static int __init tosa_bt_init(void) +{ + return platform_driver_register(&tosa_bt_driver); +} + +static void __exit tosa_bt_exit(void) +{ + platform_driver_unregister(&tosa_bt_driver); +} + +module_init(tosa_bt_init); +module_exit(tosa_bt_exit); diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c index fa903e7ae624..5a9d329f5045 100644 --- a/arch/arm/mach-pxa/tosa.c +++ b/arch/arm/mach-pxa/tosa.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -40,6 +41,7 @@ #include #include #include +#include #include #include @@ -562,7 +564,7 @@ static struct gpio_led tosa_gpio_leds[] = { }, { .name = "tosa:blue:bluetooth", - .default_trigger = "none", + .default_trigger = "tosa-bt", .gpio = TOSA_GPIO_BT_LED, }, }; @@ -732,6 +734,18 @@ static struct platform_device tc6393xb_device = { .resource = tc6393xb_resources, }; +static struct tosa_bt_data tosa_bt_data = { + .gpio_pwr = TOSA_GPIO_BT_PWR_EN, + .gpio_reset = TOSA_GPIO_BT_RESET, +}; + +static struct platform_device tosa_bt_device = { + .name = "tosa-bt", + .id = -1, + .dev.platform_data = &tosa_bt_data, +}; + + static struct platform_device *devices[] __initdata = { &tosascoop_device, &tosascoop_jc_device, @@ -740,6 +754,7 @@ static struct platform_device *devices[] __initdata = { &tosakbd_device, &tosa_gpio_keys_device, &tosaled_device, + &tosa_bt_device, }; static void tosa_poweroff(void) diff --git a/include/asm-arm/arch-pxa/tosa.h b/include/asm-arm/arch-pxa/tosa.h index a16c103b7251..a72803f0461b 100644 --- a/include/asm-arm/arch-pxa/tosa.h +++ b/include/asm-arm/arch-pxa/tosa.h @@ -30,14 +30,13 @@ #define TOSA_GPIO_SD_WP (TOSA_SCOOP_GPIO_BASE + 3) #define TOSA_GPIO_PWR_ON (TOSA_SCOOP_GPIO_BASE + 4) #define TOSA_SCOOP_AUD_PWR_ON SCOOP_GPCR_PA16 -#define TOSA_SCOOP_BT_RESET SCOOP_GPCR_PA17 -#define TOSA_SCOOP_BT_PWR_EN SCOOP_GPCR_PA18 +#define TOSA_GPIO_BT_RESET (TOSA_SCOOP_GPIO_BASE + 6) +#define TOSA_GPIO_BT_PWR_EN (TOSA_SCOOP_GPIO_BASE + 7) #define TOSA_SCOOP_AC_IN_OL SCOOP_GPCR_PA19 /* GPIO Direction 1 : output mode / 0:input mode */ #define TOSA_SCOOP_IO_DIR (TOSA_SCOOP_PXA_VCORE1 | \ - TOSA_SCOOP_AUD_PWR_ON |\ - TOSA_SCOOP_BT_RESET | TOSA_SCOOP_BT_PWR_EN) + TOSA_SCOOP_AUD_PWR_ON) /* * SCOOP2 jacket GPIOs diff --git a/include/asm-arm/arch-pxa/tosa_bt.h b/include/asm-arm/arch-pxa/tosa_bt.h new file mode 100644 index 000000000000..efc3c3d3b75d --- /dev/null +++ b/include/asm-arm/arch-pxa/tosa_bt.h @@ -0,0 +1,22 @@ +/* + * Tosa bluetooth built-in chip control. + * + * Later it may be shared with some other platforms. + * + * Copyright (c) 2008 Dmitry Baryshkov + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#ifndef TOSA_BT_H +#define TOSA_BT_H + +struct tosa_bt_data { + int gpio_pwr; + int gpio_reset; +}; + +#endif + -- cgit v1.2.3 From 7cc5bf9a3a84e5a02e23e5739fb894790b37c101 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 8 Jul 2008 11:58:21 -0700 Subject: dmaengine: track the number of clients using a channel Haavard's dma-slave interface would like to test for exclusive access to a channel. The standard channel refcounting is not sufficient in that it tracks more than just client references, it is also inaccurate as reference counts are percpu until the channel is removed. This change also enables a future fix to deallocate resources when a client declines to use a capable channel. Acked-by: Haavard Skinnemoen Signed-off-by: Dan Williams --- drivers/dma/dmaengine.c | 14 ++++++++++---- include/linux/dmaengine.h | 2 ++ 2 files changed, 12 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 99c22b42bada..10de69eb1a3e 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -183,9 +183,10 @@ static void dma_client_chan_alloc(struct dma_client *client) /* we are done once this client rejects * an available resource */ - if (ack == DMA_ACK) + if (ack == DMA_ACK) { dma_chan_get(chan); - else if (ack == DMA_NAK) + chan->client_count++; + } else if (ack == DMA_NAK) return; } } @@ -272,8 +273,10 @@ static void dma_clients_notify_removed(struct dma_chan *chan) /* client was holding resources for this channel so * free it */ - if (ack == DMA_ACK) + if (ack == DMA_ACK) { dma_chan_put(chan); + chan->client_count--; + } } mutex_unlock(&dma_list_mutex); @@ -313,8 +316,10 @@ void dma_async_client_unregister(struct dma_client *client) ack = client->event_callback(client, chan, DMA_RESOURCE_REMOVED); - if (ack == DMA_ACK) + if (ack == DMA_ACK) { dma_chan_put(chan); + chan->client_count--; + } } list_del(&client->global_node); @@ -394,6 +399,7 @@ int dma_async_device_register(struct dma_device *device) kref_get(&device->refcount); kref_get(&device->refcount); kref_init(&chan->refcount); + chan->client_count = 0; chan->slow_ref = 0; INIT_RCU_HEAD(&chan->rcu); } diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index d08a5c5eb928..6432b8343220 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -139,6 +139,7 @@ struct dma_chan_percpu { * @rcu: the DMA channel's RCU head * @device_node: used to add this to the device chan list * @local: per-cpu pointer to a struct dma_chan_percpu + * @client-count: how many clients are using this channel */ struct dma_chan { struct dma_device *device; @@ -154,6 +155,7 @@ struct dma_chan { struct list_head device_node; struct dma_chan_percpu *local; + int client_count; }; #define to_dma_chan(p) container_of(p, struct dma_chan, dev) -- cgit v1.2.3 From ff7b04796d9866327ea76e1393f1e902ef032f84 Mon Sep 17 00:00:00 2001 From: Saeed Bishara Date: Tue, 8 Jul 2008 11:58:36 -0700 Subject: dmaengine: DMA engine driver for Marvell XOR engine The XOR engine found in Marvell's SoCs and system controllers provides XOR and DMA operation, iSCSI CRC32C calculation, memory initialization, and memory ECC error cleanup operation support. This driver implements the DMA engine API and supports the following capabilities: - memcpy - xor - memset The XOR engine can be used by DMA engine clients implemented in the kernel, one of those clients is the RAID module. In that case, I observed 20% improvement in the raid5 write throughput, and 40% decrease in the CPU utilization when doing array construction, those results obtained on an 5182 running at 500Mhz. When enabling the NET DMA client, the performance decreased, so meanwhile it is recommended to keep this client off. Signed-off-by: Saeed Bishara Signed-off-by: Lennert Buytenhek Signed-off-by: Nicolas Pitre Acked-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dma/Kconfig | 8 + drivers/dma/Makefile | 1 + drivers/dma/mv_xor.c | 1364 +++++++++++++++++++++++++++++++++++ drivers/dma/mv_xor.h | 183 +++++ include/asm-arm/plat-orion/mv_xor.h | 28 + 5 files changed, 1584 insertions(+) create mode 100644 drivers/dma/mv_xor.c create mode 100644 drivers/dma/mv_xor.h create mode 100644 include/asm-arm/plat-orion/mv_xor.h (limited to 'include') diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index e4dd0065da33..5af8b1cfc1e9 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -47,6 +47,14 @@ config FSL_DMA MPC8560/40, MPC8555, MPC8548 and MPC8641 processors. The MPC8349, MPC8360 is also supported. +config MV_XOR + bool "Marvell XOR engine support" + depends on PLAT_ORION + select ASYNC_CORE + select DMA_ENGINE + ---help--- + Enable support for the Marvell XOR engine. + config DMA_ENGINE bool diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index c8036d945902..ee272fd329c9 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o ioatdma-objs := ioat.o ioat_dma.o ioat_dca.o obj-$(CONFIG_INTEL_IOP_ADMA) += iop-adma.o obj-$(CONFIG_FSL_DMA) += fsldma.o +obj-$(CONFIG_MV_XOR) += mv_xor.o diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c new file mode 100644 index 000000000000..f0c123ce8ae0 --- /dev/null +++ b/drivers/dma/mv_xor.c @@ -0,0 +1,1364 @@ +/* + * offload engine driver for the Marvell XOR engine + * Copyright (C) 2007, 2008, Marvell International Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "mv_xor.h" + +static void mv_xor_issue_pending(struct dma_chan *chan); + +#define to_mv_xor_chan(chan) \ + container_of(chan, struct mv_xor_chan, common) + +#define to_mv_xor_device(dev) \ + container_of(dev, struct mv_xor_device, common) + +#define to_mv_xor_slot(tx) \ + container_of(tx, struct mv_xor_desc_slot, async_tx) + +static void mv_desc_init(struct mv_xor_desc_slot *desc, unsigned long flags) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + + hw_desc->status = (1 << 31); + hw_desc->phy_next_desc = 0; + hw_desc->desc_command = (1 << 31); +} + +static u32 mv_desc_get_dest_addr(struct mv_xor_desc_slot *desc) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + return hw_desc->phy_dest_addr; +} + +static u32 mv_desc_get_src_addr(struct mv_xor_desc_slot *desc, + int src_idx) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + return hw_desc->phy_src_addr[src_idx]; +} + + +static void mv_desc_set_byte_count(struct mv_xor_desc_slot *desc, + u32 byte_count) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + hw_desc->byte_count = byte_count; +} + +static void mv_desc_set_next_desc(struct mv_xor_desc_slot *desc, + u32 next_desc_addr) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + BUG_ON(hw_desc->phy_next_desc); + hw_desc->phy_next_desc = next_desc_addr; +} + +static void mv_desc_clear_next_desc(struct mv_xor_desc_slot *desc) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + hw_desc->phy_next_desc = 0; +} + +static void mv_desc_set_block_fill_val(struct mv_xor_desc_slot *desc, u32 val) +{ + desc->value = val; +} + +static void mv_desc_set_dest_addr(struct mv_xor_desc_slot *desc, + dma_addr_t addr) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + hw_desc->phy_dest_addr = addr; +} + +static int mv_chan_memset_slot_count(size_t len) +{ + return 1; +} + +#define mv_chan_memcpy_slot_count(c) mv_chan_memset_slot_count(c) + +static void mv_desc_set_src_addr(struct mv_xor_desc_slot *desc, + int index, dma_addr_t addr) +{ + struct mv_xor_desc *hw_desc = desc->hw_desc; + hw_desc->phy_src_addr[index] = addr; + if (desc->type == DMA_XOR) + hw_desc->desc_command |= (1 << index); +} + +static u32 mv_chan_get_current_desc(struct mv_xor_chan *chan) +{ + return __raw_readl(XOR_CURR_DESC(chan)); +} + +static void mv_chan_set_next_descriptor(struct mv_xor_chan *chan, + u32 next_desc_addr) +{ + __raw_writel(next_desc_addr, XOR_NEXT_DESC(chan)); +} + +static void mv_chan_set_dest_pointer(struct mv_xor_chan *chan, u32 desc_addr) +{ + __raw_writel(desc_addr, XOR_DEST_POINTER(chan)); +} + +static void mv_chan_set_block_size(struct mv_xor_chan *chan, u32 block_size) +{ + __raw_writel(block_size, XOR_BLOCK_SIZE(chan)); +} + +static void mv_chan_set_value(struct mv_xor_chan *chan, u32 value) +{ + __raw_writel(value, XOR_INIT_VALUE_LOW(chan)); + __raw_writel(value, XOR_INIT_VALUE_HIGH(chan)); +} + +static void mv_chan_unmask_interrupts(struct mv_xor_chan *chan) +{ + u32 val = __raw_readl(XOR_INTR_MASK(chan)); + val |= XOR_INTR_MASK_VALUE << (chan->idx * 16); + __raw_writel(val, XOR_INTR_MASK(chan)); +} + +static u32 mv_chan_get_intr_cause(struct mv_xor_chan *chan) +{ + u32 intr_cause = __raw_readl(XOR_INTR_CAUSE(chan)); + intr_cause = (intr_cause >> (chan->idx * 16)) & 0xFFFF; + return intr_cause; +} + +static int mv_is_err_intr(u32 intr_cause) +{ + if (intr_cause & ((1<<4)|(1<<5)|(1<<6)|(1<<7)|(1<<8)|(1<<9))) + return 1; + + return 0; +} + +static void mv_xor_device_clear_eoc_cause(struct mv_xor_chan *chan) +{ + u32 val = (1 << (1 + (chan->idx * 16))); + dev_dbg(chan->device->common.dev, "%s, val 0x%08x\n", __func__, val); + __raw_writel(val, XOR_INTR_CAUSE(chan)); +} + +static void mv_xor_device_clear_err_status(struct mv_xor_chan *chan) +{ + u32 val = 0xFFFF0000 >> (chan->idx * 16); + __raw_writel(val, XOR_INTR_CAUSE(chan)); +} + +static int mv_can_chain(struct mv_xor_desc_slot *desc) +{ + struct mv_xor_desc_slot *chain_old_tail = list_entry( + desc->chain_node.prev, struct mv_xor_desc_slot, chain_node); + + if (chain_old_tail->type != desc->type) + return 0; + if (desc->type == DMA_MEMSET) + return 0; + + return 1; +} + +static void mv_set_mode(struct mv_xor_chan *chan, + enum dma_transaction_type type) +{ + u32 op_mode; + u32 config = __raw_readl(XOR_CONFIG(chan)); + + switch (type) { + case DMA_XOR: + op_mode = XOR_OPERATION_MODE_XOR; + break; + case DMA_MEMCPY: + op_mode = XOR_OPERATION_MODE_MEMCPY; + break; + case DMA_MEMSET: + op_mode = XOR_OPERATION_MODE_MEMSET; + break; + default: + dev_printk(KERN_ERR, chan->device->common.dev, + "error: unsupported operation %d.\n", + type); + BUG(); + return; + } + + config &= ~0x7; + config |= op_mode; + __raw_writel(config, XOR_CONFIG(chan)); + chan->current_type = type; +} + +static void mv_chan_activate(struct mv_xor_chan *chan) +{ + u32 activation; + + dev_dbg(chan->device->common.dev, " activate chan.\n"); + activation = __raw_readl(XOR_ACTIVATION(chan)); + activation |= 0x1; + __raw_writel(activation, XOR_ACTIVATION(chan)); +} + +static char mv_chan_is_busy(struct mv_xor_chan *chan) +{ + u32 state = __raw_readl(XOR_ACTIVATION(chan)); + + state = (state >> 4) & 0x3; + + return (state == 1) ? 1 : 0; +} + +static int mv_chan_xor_slot_count(size_t len, int src_cnt) +{ + return 1; +} + +/** + * mv_xor_free_slots - flags descriptor slots for reuse + * @slot: Slot to free + * Caller must hold &mv_chan->lock while calling this function + */ +static void mv_xor_free_slots(struct mv_xor_chan *mv_chan, + struct mv_xor_desc_slot *slot) +{ + dev_dbg(mv_chan->device->common.dev, "%s %d slot %p\n", + __func__, __LINE__, slot); + + slot->slots_per_op = 0; + +} + +/* + * mv_xor_start_new_chain - program the engine to operate on new chain headed by + * sw_desc + * Caller must hold &mv_chan->lock while calling this function + */ +static void mv_xor_start_new_chain(struct mv_xor_chan *mv_chan, + struct mv_xor_desc_slot *sw_desc) +{ + dev_dbg(mv_chan->device->common.dev, "%s %d: sw_desc %p\n", + __func__, __LINE__, sw_desc); + if (sw_desc->type != mv_chan->current_type) + mv_set_mode(mv_chan, sw_desc->type); + + if (sw_desc->type == DMA_MEMSET) { + /* for memset requests we need to program the engine, no + * descriptors used. + */ + struct mv_xor_desc *hw_desc = sw_desc->hw_desc; + mv_chan_set_dest_pointer(mv_chan, hw_desc->phy_dest_addr); + mv_chan_set_block_size(mv_chan, sw_desc->unmap_len); + mv_chan_set_value(mv_chan, sw_desc->value); + } else { + /* set the hardware chain */ + mv_chan_set_next_descriptor(mv_chan, sw_desc->async_tx.phys); + } + mv_chan->pending += sw_desc->slot_cnt; + mv_xor_issue_pending(&mv_chan->common); +} + +static dma_cookie_t +mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc, + struct mv_xor_chan *mv_chan, dma_cookie_t cookie) +{ + BUG_ON(desc->async_tx.cookie < 0); + + if (desc->async_tx.cookie > 0) { + cookie = desc->async_tx.cookie; + + /* call the callback (must not sleep or submit new + * operations to this channel) + */ + if (desc->async_tx.callback) + desc->async_tx.callback( + desc->async_tx.callback_param); + + /* unmap dma addresses + * (unmap_single vs unmap_page?) + */ + if (desc->group_head && desc->unmap_len) { + struct mv_xor_desc_slot *unmap = desc->group_head; + struct device *dev = + &mv_chan->device->pdev->dev; + u32 len = unmap->unmap_len; + u32 src_cnt = unmap->unmap_src_cnt; + dma_addr_t addr = mv_desc_get_dest_addr(unmap); + + dma_unmap_page(dev, addr, len, DMA_FROM_DEVICE); + while (src_cnt--) { + addr = mv_desc_get_src_addr(unmap, src_cnt); + dma_unmap_page(dev, addr, len, DMA_TO_DEVICE); + } + desc->group_head = NULL; + } + } + + /* run dependent operations */ + async_tx_run_dependencies(&desc->async_tx); + + return cookie; +} + +static int +mv_xor_clean_completed_slots(struct mv_xor_chan *mv_chan) +{ + struct mv_xor_desc_slot *iter, *_iter; + + dev_dbg(mv_chan->device->common.dev, "%s %d\n", __func__, __LINE__); + list_for_each_entry_safe(iter, _iter, &mv_chan->completed_slots, + completed_node) { + + if (async_tx_test_ack(&iter->async_tx)) { + list_del(&iter->completed_node); + mv_xor_free_slots(mv_chan, iter); + } + } + return 0; +} + +static int +mv_xor_clean_slot(struct mv_xor_desc_slot *desc, + struct mv_xor_chan *mv_chan) +{ + dev_dbg(mv_chan->device->common.dev, "%s %d: desc %p flags %d\n", + __func__, __LINE__, desc, desc->async_tx.flags); + list_del(&desc->chain_node); + /* the client is allowed to attach dependent operations + * until 'ack' is set + */ + if (!async_tx_test_ack(&desc->async_tx)) { + /* move this slot to the completed_slots */ + list_add_tail(&desc->completed_node, &mv_chan->completed_slots); + return 0; + } + + mv_xor_free_slots(mv_chan, desc); + return 0; +} + +static void __mv_xor_slot_cleanup(struct mv_xor_chan *mv_chan) +{ + struct mv_xor_desc_slot *iter, *_iter; + dma_cookie_t cookie = 0; + int busy = mv_chan_is_busy(mv_chan); + u32 current_desc = mv_chan_get_current_desc(mv_chan); + int seen_current = 0; + + dev_dbg(mv_chan->device->common.dev, "%s %d\n", __func__, __LINE__); + dev_dbg(mv_chan->device->common.dev, "current_desc %x\n", current_desc); + mv_xor_clean_completed_slots(mv_chan); + + /* free completed slots from the chain starting with + * the oldest descriptor + */ + + list_for_each_entry_safe(iter, _iter, &mv_chan->chain, + chain_node) { + prefetch(_iter); + prefetch(&_iter->async_tx); + + /* do not advance past the current descriptor loaded into the + * hardware channel, subsequent descriptors are either in + * process or have not been submitted + */ + if (seen_current) + break; + + /* stop the search if we reach the current descriptor and the + * channel is busy + */ + if (iter->async_tx.phys == current_desc) { + seen_current = 1; + if (busy) + break; + } + + cookie = mv_xor_run_tx_complete_actions(iter, mv_chan, cookie); + + if (mv_xor_clean_slot(iter, mv_chan)) + break; + } + + if ((busy == 0) && !list_empty(&mv_chan->chain)) { + struct mv_xor_desc_slot *chain_head; + chain_head = list_entry(mv_chan->chain.next, + struct mv_xor_desc_slot, + chain_node); + + mv_xor_start_new_chain(mv_chan, chain_head); + } + + if (cookie > 0) + mv_chan->completed_cookie = cookie; +} + +static void +mv_xor_slot_cleanup(struct mv_xor_chan *mv_chan) +{ + spin_lock_bh(&mv_chan->lock); + __mv_xor_slot_cleanup(mv_chan); + spin_unlock_bh(&mv_chan->lock); +} + +static void mv_xor_tasklet(unsigned long data) +{ + struct mv_xor_chan *chan = (struct mv_xor_chan *) data; + __mv_xor_slot_cleanup(chan); +} + +static struct mv_xor_desc_slot * +mv_xor_alloc_slots(struct mv_xor_chan *mv_chan, int num_slots, + int slots_per_op) +{ + struct mv_xor_desc_slot *iter, *_iter, *alloc_start = NULL; + LIST_HEAD(chain); + int slots_found, retry = 0; + + /* start search from the last allocated descrtiptor + * if a contiguous allocation can not be found start searching + * from the beginning of the list + */ +retry: + slots_found = 0; + if (retry == 0) + iter = mv_chan->last_used; + else + iter = list_entry(&mv_chan->all_slots, + struct mv_xor_desc_slot, + slot_node); + + list_for_each_entry_safe_continue( + iter, _iter, &mv_chan->all_slots, slot_node) { + prefetch(_iter); + prefetch(&_iter->async_tx); + if (iter->slots_per_op) { + /* give up after finding the first busy slot + * on the second pass through the list + */ + if (retry) + break; + + slots_found = 0; + continue; + } + + /* start the allocation if the slot is correctly aligned */ + if (!slots_found++) + alloc_start = iter; + + if (slots_found == num_slots) { + struct mv_xor_desc_slot *alloc_tail = NULL; + struct mv_xor_desc_slot *last_used = NULL; + iter = alloc_start; + while (num_slots) { + int i; + + /* pre-ack all but the last descriptor */ + async_tx_ack(&iter->async_tx); + + list_add_tail(&iter->chain_node, &chain); + alloc_tail = iter; + iter->async_tx.cookie = 0; + iter->slot_cnt = num_slots; + iter->xor_check_result = NULL; + for (i = 0; i < slots_per_op; i++) { + iter->slots_per_op = slots_per_op - i; + last_used = iter; + iter = list_entry(iter->slot_node.next, + struct mv_xor_desc_slot, + slot_node); + } + num_slots -= slots_per_op; + } + alloc_tail->group_head = alloc_start; + alloc_tail->async_tx.cookie = -EBUSY; + list_splice(&chain, &alloc_tail->async_tx.tx_list); + mv_chan->last_used = last_used; + mv_desc_clear_next_desc(alloc_start); + mv_desc_clear_next_desc(alloc_tail); + return alloc_tail; + } + } + if (!retry++) + goto retry; + + /* try to free some slots if the allocation fails */ + tasklet_schedule(&mv_chan->irq_tasklet); + + return NULL; +} + +static dma_cookie_t +mv_desc_assign_cookie(struct mv_xor_chan *mv_chan, + struct mv_xor_desc_slot *desc) +{ + dma_cookie_t cookie = mv_chan->common.cookie; + + if (++cookie < 0) + cookie = 1; + mv_chan->common.cookie = desc->async_tx.cookie = cookie; + return cookie; +} + +/************************ DMA engine API functions ****************************/ +static dma_cookie_t +mv_xor_tx_submit(struct dma_async_tx_descriptor *tx) +{ + struct mv_xor_desc_slot *sw_desc = to_mv_xor_slot(tx); + struct mv_xor_chan *mv_chan = to_mv_xor_chan(tx->chan); + struct mv_xor_desc_slot *grp_start, *old_chain_tail; + dma_cookie_t cookie; + int new_hw_chain = 1; + + dev_dbg(mv_chan->device->common.dev, + "%s sw_desc %p: async_tx %p\n", + __func__, sw_desc, &sw_desc->async_tx); + + grp_start = sw_desc->group_head; + + spin_lock_bh(&mv_chan->lock); + cookie = mv_desc_assign_cookie(mv_chan, sw_desc); + + if (list_empty(&mv_chan->chain)) + list_splice_init(&sw_desc->async_tx.tx_list, &mv_chan->chain); + else { + new_hw_chain = 0; + + old_chain_tail = list_entry(mv_chan->chain.prev, + struct mv_xor_desc_slot, + chain_node); + list_splice_init(&grp_start->async_tx.tx_list, + &old_chain_tail->chain_node); + + if (!mv_can_chain(grp_start)) + goto submit_done; + + dev_dbg(mv_chan->device->common.dev, "Append to last desc %x\n", + old_chain_tail->async_tx.phys); + + /* fix up the hardware chain */ + mv_desc_set_next_desc(old_chain_tail, grp_start->async_tx.phys); + + /* if the channel is not busy */ + if (!mv_chan_is_busy(mv_chan)) { + u32 current_desc = mv_chan_get_current_desc(mv_chan); + /* + * and the curren desc is the end of the chain before + * the append, then we need to start the channel + */ + if (current_desc == old_chain_tail->async_tx.phys) + new_hw_chain = 1; + } + } + + if (new_hw_chain) + mv_xor_start_new_chain(mv_chan, grp_start); + +submit_done: + spin_unlock_bh(&mv_chan->lock); + + return cookie; +} + +/* returns the number of allocated descriptors */ +static int mv_xor_alloc_chan_resources(struct dma_chan *chan) +{ + char *hw_desc; + int idx; + struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); + struct mv_xor_desc_slot *slot = NULL; + struct mv_xor_platform_data *plat_data = + mv_chan->device->pdev->dev.platform_data; + int num_descs_in_pool = plat_data->pool_size/MV_XOR_SLOT_SIZE; + + /* Allocate descriptor slots */ + idx = mv_chan->slots_allocated; + while (idx < num_descs_in_pool) { + slot = kzalloc(sizeof(*slot), GFP_KERNEL); + if (!slot) { + printk(KERN_INFO "MV XOR Channel only initialized" + " %d descriptor slots", idx); + break; + } + hw_desc = (char *) mv_chan->device->dma_desc_pool_virt; + slot->hw_desc = (void *) &hw_desc[idx * MV_XOR_SLOT_SIZE]; + + dma_async_tx_descriptor_init(&slot->async_tx, chan); + slot->async_tx.tx_submit = mv_xor_tx_submit; + INIT_LIST_HEAD(&slot->chain_node); + INIT_LIST_HEAD(&slot->slot_node); + INIT_LIST_HEAD(&slot->async_tx.tx_list); + hw_desc = (char *) mv_chan->device->dma_desc_pool; + slot->async_tx.phys = + (dma_addr_t) &hw_desc[idx * MV_XOR_SLOT_SIZE]; + slot->idx = idx++; + + spin_lock_bh(&mv_chan->lock); + mv_chan->slots_allocated = idx; + list_add_tail(&slot->slot_node, &mv_chan->all_slots); + spin_unlock_bh(&mv_chan->lock); + } + + if (mv_chan->slots_allocated && !mv_chan->last_used) + mv_chan->last_used = list_entry(mv_chan->all_slots.next, + struct mv_xor_desc_slot, + slot_node); + + dev_dbg(mv_chan->device->common.dev, + "allocated %d descriptor slots last_used: %p\n", + mv_chan->slots_allocated, mv_chan->last_used); + + return mv_chan->slots_allocated ? : -ENOMEM; +} + +static struct dma_async_tx_descriptor * +mv_xor_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, + size_t len, unsigned long flags) +{ + struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); + struct mv_xor_desc_slot *sw_desc, *grp_start; + int slot_cnt; + + dev_dbg(mv_chan->device->common.dev, + "%s dest: %x src %x len: %u flags: %ld\n", + __func__, dest, src, len, flags); + if (unlikely(len < MV_XOR_MIN_BYTE_COUNT)) + return NULL; + + BUG_ON(unlikely(len > MV_XOR_MAX_BYTE_COUNT)); + + spin_lock_bh(&mv_chan->lock); + slot_cnt = mv_chan_memcpy_slot_count(len); + sw_desc = mv_xor_alloc_slots(mv_chan, slot_cnt, 1); + if (sw_desc) { + sw_desc->type = DMA_MEMCPY; + sw_desc->async_tx.flags = flags; + grp_start = sw_desc->group_head; + mv_desc_init(grp_start, flags); + mv_desc_set_byte_count(grp_start, len); + mv_desc_set_dest_addr(sw_desc->group_head, dest); + mv_desc_set_src_addr(grp_start, 0, src); + sw_desc->unmap_src_cnt = 1; + sw_desc->unmap_len = len; + } + spin_unlock_bh(&mv_chan->lock); + + dev_dbg(mv_chan->device->common.dev, + "%s sw_desc %p async_tx %p\n", + __func__, sw_desc, sw_desc ? &sw_desc->async_tx : 0); + + return sw_desc ? &sw_desc->async_tx : NULL; +} + +static struct dma_async_tx_descriptor * +mv_xor_prep_dma_memset(struct dma_chan *chan, dma_addr_t dest, int value, + size_t len, unsigned long flags) +{ + struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); + struct mv_xor_desc_slot *sw_desc, *grp_start; + int slot_cnt; + + dev_dbg(mv_chan->device->common.dev, + "%s dest: %x len: %u flags: %ld\n", + __func__, dest, len, flags); + if (unlikely(len < MV_XOR_MIN_BYTE_COUNT)) + return NULL; + + BUG_ON(unlikely(len > MV_XOR_MAX_BYTE_COUNT)); + + spin_lock_bh(&mv_chan->lock); + slot_cnt = mv_chan_memset_slot_count(len); + sw_desc = mv_xor_alloc_slots(mv_chan, slot_cnt, 1); + if (sw_desc) { + sw_desc->type = DMA_MEMSET; + sw_desc->async_tx.flags = flags; + grp_start = sw_desc->group_head; + mv_desc_init(grp_start, flags); + mv_desc_set_byte_count(grp_start, len); + mv_desc_set_dest_addr(sw_desc->group_head, dest); + mv_desc_set_block_fill_val(grp_start, value); + sw_desc->unmap_src_cnt = 1; + sw_desc->unmap_len = len; + } + spin_unlock_bh(&mv_chan->lock); + dev_dbg(mv_chan->device->common.dev, + "%s sw_desc %p async_tx %p \n", + __func__, sw_desc, &sw_desc->async_tx); + return sw_desc ? &sw_desc->async_tx : NULL; +} + +static struct dma_async_tx_descriptor * +mv_xor_prep_dma_xor(struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src, + unsigned int src_cnt, size_t len, unsigned long flags) +{ + struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); + struct mv_xor_desc_slot *sw_desc, *grp_start; + int slot_cnt; + + if (unlikely(len < MV_XOR_MIN_BYTE_COUNT)) + return NULL; + + BUG_ON(unlikely(len > MV_XOR_MAX_BYTE_COUNT)); + + dev_dbg(mv_chan->device->common.dev, + "%s src_cnt: %d len: dest %x %u flags: %ld\n", + __func__, src_cnt, len, dest, flags); + + spin_lock_bh(&mv_chan->lock); + slot_cnt = mv_chan_xor_slot_count(len, src_cnt); + sw_desc = mv_xor_alloc_slots(mv_chan, slot_cnt, 1); + if (sw_desc) { + sw_desc->type = DMA_XOR; + sw_desc->async_tx.flags = flags; + grp_start = sw_desc->group_head; + mv_desc_init(grp_start, flags); + /* the byte count field is the same as in memcpy desc*/ + mv_desc_set_byte_count(grp_start, len); + mv_desc_set_dest_addr(sw_desc->group_head, dest); + sw_desc->unmap_src_cnt = src_cnt; + sw_desc->unmap_len = len; + while (src_cnt--) + mv_desc_set_src_addr(grp_start, src_cnt, src[src_cnt]); + } + spin_unlock_bh(&mv_chan->lock); + dev_dbg(mv_chan->device->common.dev, + "%s sw_desc %p async_tx %p \n", + __func__, sw_desc, &sw_desc->async_tx); + return sw_desc ? &sw_desc->async_tx : NULL; +} + +static void mv_xor_free_chan_resources(struct dma_chan *chan) +{ + struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); + struct mv_xor_desc_slot *iter, *_iter; + int in_use_descs = 0; + + mv_xor_slot_cleanup(mv_chan); + + spin_lock_bh(&mv_chan->lock); + list_for_each_entry_safe(iter, _iter, &mv_chan->chain, + chain_node) { + in_use_descs++; + list_del(&iter->chain_node); + } + list_for_each_entry_safe(iter, _iter, &mv_chan->completed_slots, + completed_node) { + in_use_descs++; + list_del(&iter->completed_node); + } + list_for_each_entry_safe_reverse( + iter, _iter, &mv_chan->all_slots, slot_node) { + list_del(&iter->slot_node); + kfree(iter); + mv_chan->slots_allocated--; + } + mv_chan->last_used = NULL; + + dev_dbg(mv_chan->device->common.dev, "%s slots_allocated %d\n", + __func__, mv_chan->slots_allocated); + spin_unlock_bh(&mv_chan->lock); + + if (in_use_descs) + dev_err(mv_chan->device->common.dev, + "freeing %d in use descriptors!\n", in_use_descs); +} + +/** + * mv_xor_is_complete - poll the status of an XOR transaction + * @chan: XOR channel handle + * @cookie: XOR transaction identifier + */ +static enum dma_status mv_xor_is_complete(struct dma_chan *chan, + dma_cookie_t cookie, + dma_cookie_t *done, + dma_cookie_t *used) +{ + struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); + dma_cookie_t last_used; + dma_cookie_t last_complete; + enum dma_status ret; + + last_used = chan->cookie; + last_complete = mv_chan->completed_cookie; + mv_chan->is_complete_cookie = cookie; + if (done) + *done = last_complete; + if (used) + *used = last_used; + + ret = dma_async_is_complete(cookie, last_complete, last_used); + if (ret == DMA_SUCCESS) { + mv_xor_clean_completed_slots(mv_chan); + return ret; + } + mv_xor_slot_cleanup(mv_chan); + + last_used = chan->cookie; + last_complete = mv_chan->completed_cookie; + + if (done) + *done = last_complete; + if (used) + *used = last_used; + + return dma_async_is_complete(cookie, last_complete, last_used); +} + +static void mv_dump_xor_regs(struct mv_xor_chan *chan) +{ + u32 val; + + val = __raw_readl(XOR_CONFIG(chan)); + dev_printk(KERN_ERR, chan->device->common.dev, + "config 0x%08x.\n", val); + + val = __raw_readl(XOR_ACTIVATION(chan)); + dev_printk(KERN_ERR, chan->device->common.dev, + "activation 0x%08x.\n", val); + + val = __raw_readl(XOR_INTR_CAUSE(chan)); + dev_printk(KERN_ERR, chan->device->common.dev, + "intr cause 0x%08x.\n", val); + + val = __raw_readl(XOR_INTR_MASK(chan)); + dev_printk(KERN_ERR, chan->device->common.dev, + "intr mask 0x%08x.\n", val); + + val = __raw_readl(XOR_ERROR_CAUSE(chan)); + dev_printk(KERN_ERR, chan->device->common.dev, + "error cause 0x%08x.\n", val); + + val = __raw_readl(XOR_ERROR_ADDR(chan)); + dev_printk(KERN_ERR, chan->device->common.dev, + "error addr 0x%08x.\n", val); +} + +static void mv_xor_err_interrupt_handler(struct mv_xor_chan *chan, + u32 intr_cause) +{ + if (intr_cause & (1 << 4)) { + dev_dbg(chan->device->common.dev, + "ignore this error\n"); + return; + } + + dev_printk(KERN_ERR, chan->device->common.dev, + "error on chan %d. intr cause 0x%08x.\n", + chan->idx, intr_cause); + + mv_dump_xor_regs(chan); + BUG(); +} + +static irqreturn_t mv_xor_interrupt_handler(int irq, void *data) +{ + struct mv_xor_chan *chan = data; + u32 intr_cause = mv_chan_get_intr_cause(chan); + + dev_dbg(chan->device->common.dev, "intr cause %x\n", intr_cause); + + if (mv_is_err_intr(intr_cause)) + mv_xor_err_interrupt_handler(chan, intr_cause); + + tasklet_schedule(&chan->irq_tasklet); + + mv_xor_device_clear_eoc_cause(chan); + + return IRQ_HANDLED; +} + +static void mv_xor_issue_pending(struct dma_chan *chan) +{ + struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); + + if (mv_chan->pending >= MV_XOR_THRESHOLD) { + mv_chan->pending = 0; + mv_chan_activate(mv_chan); + } +} + +/* + * Perform a transaction to verify the HW works. + */ +#define MV_XOR_TEST_SIZE 2000 + +static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device) +{ + int i; + void *src, *dest; + dma_addr_t src_dma, dest_dma; + struct dma_chan *dma_chan; + dma_cookie_t cookie; + struct dma_async_tx_descriptor *tx; + int err = 0; + struct mv_xor_chan *mv_chan; + + src = kmalloc(sizeof(u8) * MV_XOR_TEST_SIZE, GFP_KERNEL); + if (!src) + return -ENOMEM; + + dest = kzalloc(sizeof(u8) * MV_XOR_TEST_SIZE, GFP_KERNEL); + if (!dest) { + kfree(src); + return -ENOMEM; + } + + /* Fill in src buffer */ + for (i = 0; i < MV_XOR_TEST_SIZE; i++) + ((u8 *) src)[i] = (u8)i; + + /* Start copy, using first DMA channel */ + dma_chan = container_of(device->common.channels.next, + struct dma_chan, + device_node); + if (mv_xor_alloc_chan_resources(dma_chan) < 1) { + err = -ENODEV; + goto out; + } + + dest_dma = dma_map_single(dma_chan->device->dev, dest, + MV_XOR_TEST_SIZE, DMA_FROM_DEVICE); + + src_dma = dma_map_single(dma_chan->device->dev, src, + MV_XOR_TEST_SIZE, DMA_TO_DEVICE); + + tx = mv_xor_prep_dma_memcpy(dma_chan, dest_dma, src_dma, + MV_XOR_TEST_SIZE, 0); + cookie = mv_xor_tx_submit(tx); + mv_xor_issue_pending(dma_chan); + async_tx_ack(tx); + msleep(1); + + if (mv_xor_is_complete(dma_chan, cookie, NULL, NULL) != + DMA_SUCCESS) { + dev_printk(KERN_ERR, dma_chan->device->dev, + "Self-test copy timed out, disabling\n"); + err = -ENODEV; + goto free_resources; + } + + mv_chan = to_mv_xor_chan(dma_chan); + dma_sync_single_for_cpu(&mv_chan->device->pdev->dev, dest_dma, + MV_XOR_TEST_SIZE, DMA_FROM_DEVICE); + if (memcmp(src, dest, MV_XOR_TEST_SIZE)) { + dev_printk(KERN_ERR, dma_chan->device->dev, + "Self-test copy failed compare, disabling\n"); + err = -ENODEV; + goto free_resources; + } + +free_resources: + mv_xor_free_chan_resources(dma_chan); +out: + kfree(src); + kfree(dest); + return err; +} + +#define MV_XOR_NUM_SRC_TEST 4 /* must be <= 15 */ +static int __devinit +mv_xor_xor_self_test(struct mv_xor_device *device) +{ + int i, src_idx; + struct page *dest; + struct page *xor_srcs[MV_XOR_NUM_SRC_TEST]; + dma_addr_t dma_srcs[MV_XOR_NUM_SRC_TEST]; + dma_addr_t dest_dma; + struct dma_async_tx_descriptor *tx; + struct dma_chan *dma_chan; + dma_cookie_t cookie; + u8 cmp_byte = 0; + u32 cmp_word; + int err = 0; + struct mv_xor_chan *mv_chan; + + for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) { + xor_srcs[src_idx] = alloc_page(GFP_KERNEL); + if (!xor_srcs[src_idx]) + while (src_idx--) { + __free_page(xor_srcs[src_idx]); + return -ENOMEM; + } + } + + dest = alloc_page(GFP_KERNEL); + if (!dest) + while (src_idx--) { + __free_page(xor_srcs[src_idx]); + return -ENOMEM; + } + + /* Fill in src buffers */ + for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) { + u8 *ptr = page_address(xor_srcs[src_idx]); + for (i = 0; i < PAGE_SIZE; i++) + ptr[i] = (1 << src_idx); + } + + for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) + cmp_byte ^= (u8) (1 << src_idx); + + cmp_word = (cmp_byte << 24) | (cmp_byte << 16) | + (cmp_byte << 8) | cmp_byte; + + memset(page_address(dest), 0, PAGE_SIZE); + + dma_chan = container_of(device->common.channels.next, + struct dma_chan, + device_node); + if (mv_xor_alloc_chan_resources(dma_chan) < 1) { + err = -ENODEV; + goto out; + } + + /* test xor */ + dest_dma = dma_map_page(dma_chan->device->dev, dest, 0, PAGE_SIZE, + DMA_FROM_DEVICE); + + for (i = 0; i < MV_XOR_NUM_SRC_TEST; i++) + dma_srcs[i] = dma_map_page(dma_chan->device->dev, xor_srcs[i], + 0, PAGE_SIZE, DMA_TO_DEVICE); + + tx = mv_xor_prep_dma_xor(dma_chan, dest_dma, dma_srcs, + MV_XOR_NUM_SRC_TEST, PAGE_SIZE, 0); + + cookie = mv_xor_tx_submit(tx); + mv_xor_issue_pending(dma_chan); + async_tx_ack(tx); + msleep(8); + + if (mv_xor_is_complete(dma_chan, cookie, NULL, NULL) != + DMA_SUCCESS) { + dev_printk(KERN_ERR, dma_chan->device->dev, + "Self-test xor timed out, disabling\n"); + err = -ENODEV; + goto free_resources; + } + + mv_chan = to_mv_xor_chan(dma_chan); + dma_sync_single_for_cpu(&mv_chan->device->pdev->dev, dest_dma, + PAGE_SIZE, DMA_FROM_DEVICE); + for (i = 0; i < (PAGE_SIZE / sizeof(u32)); i++) { + u32 *ptr = page_address(dest); + if (ptr[i] != cmp_word) { + dev_printk(KERN_ERR, dma_chan->device->dev, + "Self-test xor failed compare, disabling." + " index %d, data %x, expected %x\n", i, + ptr[i], cmp_word); + err = -ENODEV; + goto free_resources; + } + } + +free_resources: + mv_xor_free_chan_resources(dma_chan); +out: + src_idx = MV_XOR_NUM_SRC_TEST; + while (src_idx--) + __free_page(xor_srcs[src_idx]); + __free_page(dest); + return err; +} + +static int __devexit mv_xor_remove(struct platform_device *dev) +{ + struct mv_xor_device *device = platform_get_drvdata(dev); + struct dma_chan *chan, *_chan; + struct mv_xor_chan *mv_chan; + struct mv_xor_platform_data *plat_data = dev->dev.platform_data; + + dma_async_device_unregister(&device->common); + + dma_free_coherent(&dev->dev, plat_data->pool_size, + device->dma_desc_pool_virt, device->dma_desc_pool); + + list_for_each_entry_safe(chan, _chan, &device->common.channels, + device_node) { + mv_chan = to_mv_xor_chan(chan); + list_del(&chan->device_node); + } + + return 0; +} + +static int __devinit mv_xor_probe(struct platform_device *pdev) +{ + int ret = 0; + int irq; + struct mv_xor_device *adev; + struct mv_xor_chan *mv_chan; + struct dma_device *dma_dev; + struct mv_xor_platform_data *plat_data = pdev->dev.platform_data; + + + adev = devm_kzalloc(&pdev->dev, sizeof(*adev), GFP_KERNEL); + if (!adev) + return -ENOMEM; + + dma_dev = &adev->common; + + /* allocate coherent memory for hardware descriptors + * note: writecombine gives slightly better performance, but + * requires that we explicitly flush the writes + */ + adev->dma_desc_pool_virt = dma_alloc_writecombine(&pdev->dev, + plat_data->pool_size, + &adev->dma_desc_pool, + GFP_KERNEL); + if (!adev->dma_desc_pool_virt) + return -ENOMEM; + + adev->id = plat_data->hw_id; + + /* discover transaction capabilites from the platform data */ + dma_dev->cap_mask = plat_data->cap_mask; + adev->pdev = pdev; + platform_set_drvdata(pdev, adev); + + adev->shared = platform_get_drvdata(plat_data->shared); + + INIT_LIST_HEAD(&dma_dev->channels); + + /* set base routines */ + dma_dev->device_alloc_chan_resources = mv_xor_alloc_chan_resources; + dma_dev->device_free_chan_resources = mv_xor_free_chan_resources; + dma_dev->device_is_tx_complete = mv_xor_is_complete; + dma_dev->device_issue_pending = mv_xor_issue_pending; + dma_dev->dev = &pdev->dev; + + /* set prep routines based on capability */ + if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask)) + dma_dev->device_prep_dma_memcpy = mv_xor_prep_dma_memcpy; + if (dma_has_cap(DMA_MEMSET, dma_dev->cap_mask)) + dma_dev->device_prep_dma_memset = mv_xor_prep_dma_memset; + if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) { + dma_dev->max_xor = 8; ; + dma_dev->device_prep_dma_xor = mv_xor_prep_dma_xor; + } + + mv_chan = devm_kzalloc(&pdev->dev, sizeof(*mv_chan), GFP_KERNEL); + if (!mv_chan) { + ret = -ENOMEM; + goto err_free_dma; + } + mv_chan->device = adev; + mv_chan->idx = plat_data->hw_id; + mv_chan->mmr_base = adev->shared->xor_base; + + if (!mv_chan->mmr_base) { + ret = -ENOMEM; + goto err_free_dma; + } + tasklet_init(&mv_chan->irq_tasklet, mv_xor_tasklet, (unsigned long) + mv_chan); + + /* clear errors before enabling interrupts */ + mv_xor_device_clear_err_status(mv_chan); + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + ret = irq; + goto err_free_dma; + } + ret = devm_request_irq(&pdev->dev, irq, + mv_xor_interrupt_handler, + 0, dev_name(&pdev->dev), mv_chan); + if (ret) + goto err_free_dma; + + mv_chan_unmask_interrupts(mv_chan); + + mv_set_mode(mv_chan, DMA_MEMCPY); + + spin_lock_init(&mv_chan->lock); + INIT_LIST_HEAD(&mv_chan->chain); + INIT_LIST_HEAD(&mv_chan->completed_slots); + INIT_LIST_HEAD(&mv_chan->all_slots); + INIT_RCU_HEAD(&mv_chan->common.rcu); + mv_chan->common.device = dma_dev; + + list_add_tail(&mv_chan->common.device_node, &dma_dev->channels); + + if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask)) { + ret = mv_xor_memcpy_self_test(adev); + dev_dbg(&pdev->dev, "memcpy self test returned %d\n", ret); + if (ret) + goto err_free_dma; + } + + if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) { + ret = mv_xor_xor_self_test(adev); + dev_dbg(&pdev->dev, "xor self test returned %d\n", ret); + if (ret) + goto err_free_dma; + } + + dev_printk(KERN_INFO, &pdev->dev, "Marvell XOR: " + "( %s%s%s%s)\n", + dma_has_cap(DMA_XOR, dma_dev->cap_mask) ? "xor " : "", + dma_has_cap(DMA_MEMSET, dma_dev->cap_mask) ? "fill " : "", + dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask) ? "cpy " : "", + dma_has_cap(DMA_INTERRUPT, dma_dev->cap_mask) ? "intr " : ""); + + dma_async_device_register(dma_dev); + goto out; + + err_free_dma: + dma_free_coherent(&adev->pdev->dev, plat_data->pool_size, + adev->dma_desc_pool_virt, adev->dma_desc_pool); + out: + return ret; +} + +static void +mv_xor_conf_mbus_windows(struct mv_xor_shared_private *msp, + struct mbus_dram_target_info *dram) +{ + void __iomem *base = msp->xor_base; + u32 win_enable = 0; + int i; + + for (i = 0; i < 8; i++) { + writel(0, base + WINDOW_BASE(i)); + writel(0, base + WINDOW_SIZE(i)); + if (i < 4) + writel(0, base + WINDOW_REMAP_HIGH(i)); + } + + for (i = 0; i < dram->num_cs; i++) { + struct mbus_dram_window *cs = dram->cs + i; + + writel((cs->base & 0xffff0000) | + (cs->mbus_attr << 8) | + dram->mbus_dram_target_id, base + WINDOW_BASE(i)); + writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); + + win_enable |= (1 << i); + win_enable |= 3 << (16 + (2 * i)); + } + + writel(win_enable, base + WINDOW_BAR_ENABLE(0)); + writel(win_enable, base + WINDOW_BAR_ENABLE(1)); +} + +static struct platform_driver mv_xor_driver = { + .probe = mv_xor_probe, + .remove = mv_xor_remove, + .driver = { + .owner = THIS_MODULE, + .name = MV_XOR_NAME, + }, +}; + +static int mv_xor_shared_probe(struct platform_device *pdev) +{ + struct mv_xor_platform_shared_data *msd = pdev->dev.platform_data; + struct mv_xor_shared_private *msp; + struct resource *res; + + dev_printk(KERN_NOTICE, &pdev->dev, "Marvell shared XOR driver\n"); + + msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL); + if (!msp) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; + + msp->xor_base = devm_ioremap(&pdev->dev, res->start, + res->end - res->start + 1); + if (!msp->xor_base) + return -EBUSY; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) + return -ENODEV; + + msp->xor_high_base = devm_ioremap(&pdev->dev, res->start, + res->end - res->start + 1); + if (!msp->xor_high_base) + return -EBUSY; + + platform_set_drvdata(pdev, msp); + + /* + * (Re-)program MBUS remapping windows if we are asked to. + */ + if (msd != NULL && msd->dram != NULL) + mv_xor_conf_mbus_windows(msp, msd->dram); + + return 0; +} + +static int mv_xor_shared_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver mv_xor_shared_driver = { + .probe = mv_xor_shared_probe, + .remove = mv_xor_shared_remove, + .driver = { + .owner = THIS_MODULE, + .name = MV_XOR_SHARED_NAME, + }, +}; + + +static int __init mv_xor_init(void) +{ + int rc; + + rc = platform_driver_register(&mv_xor_shared_driver); + if (!rc) { + rc = platform_driver_register(&mv_xor_driver); + if (rc) + platform_driver_unregister(&mv_xor_shared_driver); + } + return rc; +} +module_init(mv_xor_init); + +/* it's currently unsafe to unload this module */ +#if 0 +static void __exit mv_xor_exit(void) +{ + platform_driver_unregister(&mv_xor_driver); + platform_driver_unregister(&mv_xor_shared_driver); + return; +} + +module_exit(mv_xor_exit); +#endif + +MODULE_AUTHOR("Saeed Bishara "); +MODULE_DESCRIPTION("DMA engine driver for Marvell's XOR engine"); +MODULE_LICENSE("GPL"); diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h new file mode 100644 index 000000000000..06cafe1ef521 --- /dev/null +++ b/drivers/dma/mv_xor.h @@ -0,0 +1,183 @@ +/* + * Copyright (C) 2007, 2008, Marvell International Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MV_XOR_H +#define MV_XOR_H + +#include +#include +#include +#include + +#define USE_TIMER +#define MV_XOR_SLOT_SIZE 64 +#define MV_XOR_THRESHOLD 1 + +#define XOR_OPERATION_MODE_XOR 0 +#define XOR_OPERATION_MODE_MEMCPY 2 +#define XOR_OPERATION_MODE_MEMSET 4 + +#define XOR_CURR_DESC(chan) (chan->mmr_base + 0x210 + (chan->idx * 4)) +#define XOR_NEXT_DESC(chan) (chan->mmr_base + 0x200 + (chan->idx * 4)) +#define XOR_BYTE_COUNT(chan) (chan->mmr_base + 0x220 + (chan->idx * 4)) +#define XOR_DEST_POINTER(chan) (chan->mmr_base + 0x2B0 + (chan->idx * 4)) +#define XOR_BLOCK_SIZE(chan) (chan->mmr_base + 0x2C0 + (chan->idx * 4)) +#define XOR_INIT_VALUE_LOW(chan) (chan->mmr_base + 0x2E0) +#define XOR_INIT_VALUE_HIGH(chan) (chan->mmr_base + 0x2E4) + +#define XOR_CONFIG(chan) (chan->mmr_base + 0x10 + (chan->idx * 4)) +#define XOR_ACTIVATION(chan) (chan->mmr_base + 0x20 + (chan->idx * 4)) +#define XOR_INTR_CAUSE(chan) (chan->mmr_base + 0x30) +#define XOR_INTR_MASK(chan) (chan->mmr_base + 0x40) +#define XOR_ERROR_CAUSE(chan) (chan->mmr_base + 0x50) +#define XOR_ERROR_ADDR(chan) (chan->mmr_base + 0x60) +#define XOR_INTR_MASK_VALUE 0x3F5 + +#define WINDOW_BASE(w) (0x250 + ((w) << 2)) +#define WINDOW_SIZE(w) (0x270 + ((w) << 2)) +#define WINDOW_REMAP_HIGH(w) (0x290 + ((w) << 2)) +#define WINDOW_BAR_ENABLE(chan) (0x240 + ((chan) << 2)) + +struct mv_xor_shared_private { + void __iomem *xor_base; + void __iomem *xor_high_base; +}; + + +/** + * struct mv_xor_device - internal representation of a XOR device + * @pdev: Platform device + * @id: HW XOR Device selector + * @dma_desc_pool: base of DMA descriptor region (DMA address) + * @dma_desc_pool_virt: base of DMA descriptor region (CPU address) + * @common: embedded struct dma_device + */ +struct mv_xor_device { + struct platform_device *pdev; + int id; + dma_addr_t dma_desc_pool; + void *dma_desc_pool_virt; + struct dma_device common; + struct mv_xor_shared_private *shared; +}; + +/** + * struct mv_xor_chan - internal representation of a XOR channel + * @pending: allows batching of hardware operations + * @completed_cookie: identifier for the most recently completed operation + * @lock: serializes enqueue/dequeue operations to the descriptors pool + * @mmr_base: memory mapped register base + * @idx: the index of the xor channel + * @chain: device chain view of the descriptors + * @completed_slots: slots completed by HW but still need to be acked + * @device: parent device + * @common: common dmaengine channel object members + * @last_used: place holder for allocation to continue from where it left off + * @all_slots: complete domain of slots usable by the channel + * @slots_allocated: records the actual size of the descriptor slot pool + * @irq_tasklet: bottom half where mv_xor_slot_cleanup runs + */ +struct mv_xor_chan { + int pending; + dma_cookie_t completed_cookie; + spinlock_t lock; /* protects the descriptor slot pool */ + void __iomem *mmr_base; + unsigned int idx; + enum dma_transaction_type current_type; + struct list_head chain; + struct list_head completed_slots; + struct mv_xor_device *device; + struct dma_chan common; + struct mv_xor_desc_slot *last_used; + struct list_head all_slots; + int slots_allocated; + struct tasklet_struct irq_tasklet; +#ifdef USE_TIMER + unsigned long cleanup_time; + u32 current_on_last_cleanup; + dma_cookie_t is_complete_cookie; +#endif +}; + +/** + * struct mv_xor_desc_slot - software descriptor + * @slot_node: node on the mv_xor_chan.all_slots list + * @chain_node: node on the mv_xor_chan.chain list + * @completed_node: node on the mv_xor_chan.completed_slots list + * @hw_desc: virtual address of the hardware descriptor chain + * @phys: hardware address of the hardware descriptor chain + * @group_head: first operation in a transaction + * @slot_cnt: total slots used in an transaction (group of operations) + * @slots_per_op: number of slots per operation + * @idx: pool index + * @unmap_src_cnt: number of xor sources + * @unmap_len: transaction bytecount + * @async_tx: support for the async_tx api + * @group_list: list of slots that make up a multi-descriptor transaction + * for example transfer lengths larger than the supported hw max + * @xor_check_result: result of zero sum + * @crc32_result: result crc calculation + */ +struct mv_xor_desc_slot { + struct list_head slot_node; + struct list_head chain_node; + struct list_head completed_node; + enum dma_transaction_type type; + void *hw_desc; + struct mv_xor_desc_slot *group_head; + u16 slot_cnt; + u16 slots_per_op; + u16 idx; + u16 unmap_src_cnt; + u32 value; + size_t unmap_len; + struct dma_async_tx_descriptor async_tx; + union { + u32 *xor_check_result; + u32 *crc32_result; + }; +#ifdef USE_TIMER + unsigned long arrival_time; + struct timer_list timeout; +#endif +}; + +/* This structure describes XOR descriptor size 64bytes */ +struct mv_xor_desc { + u32 status; /* descriptor execution status */ + u32 crc32_result; /* result of CRC-32 calculation */ + u32 desc_command; /* type of operation to be carried out */ + u32 phy_next_desc; /* next descriptor address pointer */ + u32 byte_count; /* size of src/dst blocks in bytes */ + u32 phy_dest_addr; /* destination block address */ + u32 phy_src_addr[8]; /* source block addresses */ + u32 reserved0; + u32 reserved1; +}; + +#define to_mv_sw_desc(addr_hw_desc) \ + container_of(addr_hw_desc, struct mv_xor_desc_slot, hw_desc) + +#define mv_hw_desc_slot_idx(hw_desc, idx) \ + ((void *)(((unsigned long)hw_desc) + ((idx) << 5))) + +#define MV_XOR_MIN_BYTE_COUNT (128) +#define XOR_MAX_BYTE_COUNT ((16 * 1024 * 1024) - 1) +#define MV_XOR_MAX_BYTE_COUNT XOR_MAX_BYTE_COUNT + + +#endif diff --git a/include/asm-arm/plat-orion/mv_xor.h b/include/asm-arm/plat-orion/mv_xor.h new file mode 100644 index 000000000000..c349e8ff5cc0 --- /dev/null +++ b/include/asm-arm/plat-orion/mv_xor.h @@ -0,0 +1,28 @@ +/* + * Marvell XOR platform device data definition file. + */ + +#ifndef __ASM_PLAT_ORION_MV_XOR_H +#define __ASM_PLAT_ORION_MV_XOR_H + +#include +#include + +#define MV_XOR_SHARED_NAME "mv_xor_shared" +#define MV_XOR_NAME "mv_xor" + +struct mbus_dram_target_info; + +struct mv_xor_platform_shared_data { + struct mbus_dram_target_info *dram; +}; + +struct mv_xor_platform_data { + struct platform_device *shared; + int hw_id; + dma_cap_mask_t cap_mask; + size_t pool_size; +}; + + +#endif -- cgit v1.2.3 From 848c536a37b8db4e461f14ca15fe29850151c822 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Tue, 8 Jul 2008 11:58:58 -0700 Subject: dmaengine: Add dma_client parameter to device_alloc_chan_resources A DMA controller capable of doing slave transfers may need to know a few things about the slave when preparing the channel. We don't want to add this information to struct dma_channel since the channel hasn't yet been bound to a client at this point. Instead, pass a reference to the client requesting the channel to the driver's device_alloc_chan_resources hook so that it can pick the necessary information from the dma_client struct by itself. [dan.j.williams@intel.com: fixed up fsldma and mv_xor] Acked-by: Maciej Sosnowski Signed-off-by: Haavard Skinnemoen Signed-off-by: Dan Williams --- drivers/dma/dmaengine.c | 3 ++- drivers/dma/fsldma.c | 7 ++++--- drivers/dma/ioat_dma.c | 5 +++-- drivers/dma/iop-adma.c | 7 ++++--- drivers/dma/mv_xor.c | 7 ++++--- include/linux/dmaengine.h | 3 ++- 6 files changed, 19 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 10de69eb1a3e..7344f5dbd501 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -174,7 +174,8 @@ static void dma_client_chan_alloc(struct dma_client *client) if (!dma_chan_satisfies_mask(chan, client->cap_mask)) continue; - desc = chan->device->device_alloc_chan_resources(chan); + desc = chan->device->device_alloc_chan_resources( + chan, client); if (desc >= 0) { ack = client->event_callback(client, chan, diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 724f6fdd0af6..c0059ca58340 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -366,7 +366,8 @@ static struct fsl_desc_sw *fsl_dma_alloc_descriptor( * * Return - The number of descriptors allocated. */ -static int fsl_dma_alloc_chan_resources(struct dma_chan *chan) +static int fsl_dma_alloc_chan_resources(struct dma_chan *chan, + struct dma_client *client) { struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); LIST_HEAD(tmp_list); @@ -819,7 +820,7 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan) chan = &fsl_chan->common; - if (fsl_dma_alloc_chan_resources(chan) < 1) { + if (fsl_dma_alloc_chan_resources(chan, NULL) < 1) { dev_err(fsl_chan->dev, "selftest: Cannot alloc resources for DMA\n"); err = -ENODEV; @@ -847,7 +848,7 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan) /* Test free and re-alloc channel resources */ fsl_dma_free_chan_resources(chan); - if (fsl_dma_alloc_chan_resources(chan) < 1) { + if (fsl_dma_alloc_chan_resources(chan, NULL) < 1) { dev_err(fsl_chan->dev, "selftest: Cannot alloc resources for DMA\n"); err = -ENODEV; diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index 318e8a22d814..90e5b0a28cbf 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -452,7 +452,8 @@ static void ioat2_dma_massage_chan_desc(struct ioat_dma_chan *ioat_chan) * ioat_dma_alloc_chan_resources - returns the number of allocated descriptors * @chan: the channel to be filled out */ -static int ioat_dma_alloc_chan_resources(struct dma_chan *chan) +static int ioat_dma_alloc_chan_resources(struct dma_chan *chan, + struct dma_client *client) { struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan); struct ioat_desc_sw *desc; @@ -1049,7 +1050,7 @@ static int ioat_dma_self_test(struct ioatdma_device *device) dma_chan = container_of(device->common.channels.next, struct dma_chan, device_node); - if (device->common.device_alloc_chan_resources(dma_chan) < 1) { + if (device->common.device_alloc_chan_resources(dma_chan, NULL) < 1) { dev_err(&device->pdev->dev, "selftest cannot allocate chan resource\n"); err = -ENODEV; diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index 4e6b052c0654..b57564dd0232 100644 --- a/drivers/dma/iop-adma.c +++ b/drivers/dma/iop-adma.c @@ -444,7 +444,8 @@ static void iop_chan_start_null_memcpy(struct iop_adma_chan *iop_chan); static void iop_chan_start_null_xor(struct iop_adma_chan *iop_chan); /* returns the number of allocated descriptors */ -static int iop_adma_alloc_chan_resources(struct dma_chan *chan) +static int iop_adma_alloc_chan_resources(struct dma_chan *chan, + struct dma_client *client) { char *hw_desc; int idx; @@ -838,7 +839,7 @@ static int __devinit iop_adma_memcpy_self_test(struct iop_adma_device *device) dma_chan = container_of(device->common.channels.next, struct dma_chan, device_node); - if (iop_adma_alloc_chan_resources(dma_chan) < 1) { + if (iop_adma_alloc_chan_resources(dma_chan, NULL) < 1) { err = -ENODEV; goto out; } @@ -936,7 +937,7 @@ iop_adma_xor_zero_sum_self_test(struct iop_adma_device *device) dma_chan = container_of(device->common.channels.next, struct dma_chan, device_node); - if (iop_adma_alloc_chan_resources(dma_chan) < 1) { + if (iop_adma_alloc_chan_resources(dma_chan, NULL) < 1) { err = -ENODEV; goto out; } diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index f0c123ce8ae0..8239cfdbc2e6 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -588,7 +588,8 @@ submit_done: } /* returns the number of allocated descriptors */ -static int mv_xor_alloc_chan_resources(struct dma_chan *chan) +static int mv_xor_alloc_chan_resources(struct dma_chan *chan, + struct dma_client *client) { char *hw_desc; int idx; @@ -938,7 +939,7 @@ static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device) dma_chan = container_of(device->common.channels.next, struct dma_chan, device_node); - if (mv_xor_alloc_chan_resources(dma_chan) < 1) { + if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) { err = -ENODEV; goto out; } @@ -1033,7 +1034,7 @@ mv_xor_xor_self_test(struct mv_xor_device *device) dma_chan = container_of(device->common.channels.next, struct dma_chan, device_node); - if (mv_xor_alloc_chan_resources(dma_chan) < 1) { + if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) { err = -ENODEV; goto out; } diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 6432b8343220..ba89b0f5056e 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -281,7 +281,8 @@ struct dma_device { int dev_id; struct device *dev; - int (*device_alloc_chan_resources)(struct dma_chan *chan); + int (*device_alloc_chan_resources)(struct dma_chan *chan, + struct dma_client *client); void (*device_free_chan_resources)(struct dma_chan *chan); struct dma_async_tx_descriptor *(*device_prep_dma_memcpy)( -- cgit v1.2.3 From e1d181efb14a93cf263d6c588a5395518edf3294 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 4 Jul 2008 00:13:40 -0700 Subject: dmaengine: add DMA_COMPL_SKIP_{SRC,DEST}_UNMAP flags to control dma unmap In some cases client code may need the dma-driver to skip the unmap of source and/or destination buffers. Setting these flags indicates to the driver to skip the unmap step. In this regard async_xor is currently broken in that it allows the destination buffer to be unmapped while an operation is still in progress, i.e. when the number of sources exceeds the hardware channel's maximum (fixed in a subsequent patch). Acked-by: Saeed Bishara Acked-by: Maciej Sosnowski Acked-by: Haavard Skinnemoen Signed-off-by: Dan Williams --- drivers/dma/ioat_dma.c | 48 +++++++++++++++++++++++------------------------ drivers/dma/iop-adma.c | 29 +++++++++++++++++----------- drivers/dma/mv_xor.c | 22 ++++++++++++++++------ include/linux/dmaengine.h | 4 ++++ 4 files changed, 61 insertions(+), 42 deletions(-) (limited to 'include') diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index 90e5b0a28cbf..171cad69f318 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -757,6 +757,27 @@ static void ioat_dma_cleanup_tasklet(unsigned long data) chan->reg_base + IOAT_CHANCTRL_OFFSET); } +static void +ioat_dma_unmap(struct ioat_dma_chan *ioat_chan, struct ioat_desc_sw *desc) +{ + /* + * yes we are unmapping both _page and _single + * alloc'd regions with unmap_page. Is this + * *really* that bad? + */ + if (!(desc->async_tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) + pci_unmap_page(ioat_chan->device->pdev, + pci_unmap_addr(desc, dst), + pci_unmap_len(desc, len), + PCI_DMA_FROMDEVICE); + + if (!(desc->async_tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) + pci_unmap_page(ioat_chan->device->pdev, + pci_unmap_addr(desc, src), + pci_unmap_len(desc, len), + PCI_DMA_TODEVICE); +} + /** * ioat_dma_memcpy_cleanup - cleanup up finished descriptors * @chan: ioat channel to be cleaned up @@ -817,21 +838,7 @@ static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan) */ if (desc->async_tx.cookie) { cookie = desc->async_tx.cookie; - - /* - * yes we are unmapping both _page and _single - * alloc'd regions with unmap_page. Is this - * *really* that bad? - */ - pci_unmap_page(ioat_chan->device->pdev, - pci_unmap_addr(desc, dst), - pci_unmap_len(desc, len), - PCI_DMA_FROMDEVICE); - pci_unmap_page(ioat_chan->device->pdev, - pci_unmap_addr(desc, src), - pci_unmap_len(desc, len), - PCI_DMA_TODEVICE); - + ioat_dma_unmap(ioat_chan, desc); if (desc->async_tx.callback) { desc->async_tx.callback(desc->async_tx.callback_param); desc->async_tx.callback = NULL; @@ -890,16 +897,7 @@ static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan) if (desc->async_tx.cookie) { cookie = desc->async_tx.cookie; desc->async_tx.cookie = 0; - - pci_unmap_page(ioat_chan->device->pdev, - pci_unmap_addr(desc, dst), - pci_unmap_len(desc, len), - PCI_DMA_FROMDEVICE); - pci_unmap_page(ioat_chan->device->pdev, - pci_unmap_addr(desc, src), - pci_unmap_len(desc, len), - PCI_DMA_TODEVICE); - + ioat_dma_unmap(ioat_chan, desc); if (desc->async_tx.callback) { desc->async_tx.callback(desc->async_tx.callback_param); desc->async_tx.callback = NULL; diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index b57564dd0232..434013d41288 100644 --- a/drivers/dma/iop-adma.c +++ b/drivers/dma/iop-adma.c @@ -82,17 +82,24 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc, struct device *dev = &iop_chan->device->pdev->dev; u32 len = unmap->unmap_len; - u32 src_cnt = unmap->unmap_src_cnt; - dma_addr_t addr = iop_desc_get_dest_addr(unmap, - iop_chan); - - dma_unmap_page(dev, addr, len, DMA_FROM_DEVICE); - while (src_cnt--) { - addr = iop_desc_get_src_addr(unmap, - iop_chan, - src_cnt); - dma_unmap_page(dev, addr, len, - DMA_TO_DEVICE); + enum dma_ctrl_flags flags = desc->async_tx.flags; + u32 src_cnt; + dma_addr_t addr; + + if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) { + addr = iop_desc_get_dest_addr(unmap, iop_chan); + dma_unmap_page(dev, addr, len, DMA_FROM_DEVICE); + } + + if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { + src_cnt = unmap->unmap_src_cnt; + while (src_cnt--) { + addr = iop_desc_get_src_addr(unmap, + iop_chan, + src_cnt); + dma_unmap_page(dev, addr, len, + DMA_TO_DEVICE); + } } desc->group_head = NULL; } diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index 8239cfdbc2e6..a4e4494663bf 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -308,13 +308,23 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc, struct device *dev = &mv_chan->device->pdev->dev; u32 len = unmap->unmap_len; - u32 src_cnt = unmap->unmap_src_cnt; - dma_addr_t addr = mv_desc_get_dest_addr(unmap); + enum dma_ctrl_flags flags = desc->async_tx.flags; + u32 src_cnt; + dma_addr_t addr; - dma_unmap_page(dev, addr, len, DMA_FROM_DEVICE); - while (src_cnt--) { - addr = mv_desc_get_src_addr(unmap, src_cnt); - dma_unmap_page(dev, addr, len, DMA_TO_DEVICE); + if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) { + addr = mv_desc_get_dest_addr(unmap); + dma_unmap_page(dev, addr, len, DMA_FROM_DEVICE); + } + + if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { + src_cnt = unmap->unmap_src_cnt; + while (src_cnt--) { + addr = mv_desc_get_src_addr(unmap, + src_cnt); + dma_unmap_page(dev, addr, len, + DMA_TO_DEVICE); + } } desc->group_head = NULL; } diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index ba89b0f5056e..b058d6360383 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -102,10 +102,14 @@ enum dma_transaction_type { * @DMA_CTRL_ACK - the descriptor cannot be reused until the client * acknowledges receipt, i.e. has has a chance to establish any * dependency chains + * @DMA_COMPL_SKIP_SRC_UNMAP - set to disable dma-unmapping the source buffer(s) + * @DMA_COMPL_SKIP_DEST_UNMAP - set to disable dma-unmapping the destination(s) */ enum dma_ctrl_flags { DMA_PREP_INTERRUPT = (1 << 0), DMA_CTRL_ACK = (1 << 1), + DMA_COMPL_SKIP_SRC_UNMAP = (1 << 2), + DMA_COMPL_SKIP_DEST_UNMAP = (1 << 3), }; /** -- cgit v1.2.3 From dc0ee6435cb92ccc81b14ff28d163fecc5a7f120 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Tue, 8 Jul 2008 11:59:35 -0700 Subject: dmaengine: Add slave DMA interface This patch adds the necessary interfaces to the DMA Engine framework to use functionality found on most embedded DMA controllers: DMA from and to I/O registers with hardware handshaking. In this context, hardware hanshaking means that the peripheral that owns the I/O registers in question is able to tell the DMA controller when more data is available for reading, or when there is room for more data to be written. This usually happens internally on the chip, but these signals may also be exported outside the chip for things like IDE DMA, etc. A new struct dma_slave is introduced. This contains information that the DMA engine driver needs to set up slave transfers to and from a slave device. Most engines supporting DMA slave transfers will want to extend this structure with controller-specific parameters. This additional information is usually passed from the platform/board code through the client driver. A "slave" pointer is added to the dma_client struct. This must point to a valid dma_slave structure iff the DMA_SLAVE capability is requested. The DMA engine driver may use this information in its device_alloc_chan_resources hook to configure the DMA controller for slave transfers from and to the given slave device. A new operation for preparing slave DMA transfers is added to struct dma_device. This takes a scatterlist and returns a single descriptor representing the whole transfer. Another new operation for terminating all pending transfers is added as well. The latter is needed because there may be errors outside the scope of the DMA Engine framework that may require DMA operations to be terminated prematurely. DMA Engine drivers may extend the dma_device, dma_chan and/or dma_slave_descriptor structures to allow controller-specific operations. The client driver can detect such extensions by looking at the DMA Engine's struct device, or it can request a specific DMA Engine device by setting the dma_dev field in struct dma_slave. dmaslave interface changes since v4: * Fix checkpatch errors * Fix changelog (there are no slave descriptors anymore) dmaslave interface changes since v3: * Use dma_data_direction instead of a new enum * Submit slave transfers as scatterlists * Remove the DMA slave descriptor struct dmaslave interface changes since v2: * Add a dma_dev field to struct dma_slave. If set, the client can only be bound to the DMA controller that corresponds to this device. This allows controller-specific extensions of the dma_slave structure; if the device matches, the controller may safely assume its extensions are present. * Move reg_width into struct dma_slave as there are currently no users that need to be able to set the width on a per-transfer basis. dmaslave interface changes since v1: * Drop the set_direction and set_width descriptor hooks. Pass the direction and width to the prep function instead. * Declare a dma_slave struct with fixed information about a slave, i.e. register addresses, handshake interfaces and such. * Add pointer to a dma_slave struct to dma_client. Can be NULL if the DMA_SLAVE capability isn't requested. * Drop the set_slave device hook since the alloc_chan_resources hook now has enough information to set up the channel for slave transfers. Acked-by: Maciej Sosnowski Signed-off-by: Haavard Skinnemoen Signed-off-by: Dan Williams --- drivers/dma/dmaengine.c | 16 ++++++++++++++- include/linux/dmaengine.h | 52 ++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 66 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 7344f5dbd501..dc003a3a787d 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -169,7 +169,12 @@ static void dma_client_chan_alloc(struct dma_client *client) enum dma_state_client ack; /* Find a channel */ - list_for_each_entry(device, &dma_device_list, global_node) + list_for_each_entry(device, &dma_device_list, global_node) { + /* Does the client require a specific DMA controller? */ + if (client->slave && client->slave->dma_dev + && client->slave->dma_dev != device->dev) + continue; + list_for_each_entry(chan, &device->channels, device_node) { if (!dma_chan_satisfies_mask(chan, client->cap_mask)) continue; @@ -191,6 +196,7 @@ static void dma_client_chan_alloc(struct dma_client *client) return; } } + } } enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie) @@ -289,6 +295,10 @@ static void dma_clients_notify_removed(struct dma_chan *chan) */ void dma_async_client_register(struct dma_client *client) { + /* validate client data */ + BUG_ON(dma_has_cap(DMA_SLAVE, client->cap_mask) && + !client->slave); + mutex_lock(&dma_list_mutex); list_add_tail(&client->global_node, &dma_client_list); mutex_unlock(&dma_list_mutex); @@ -365,6 +375,10 @@ int dma_async_device_register(struct dma_device *device) !device->device_prep_dma_memset); BUG_ON(dma_has_cap(DMA_INTERRUPT, device->cap_mask) && !device->device_prep_dma_interrupt); + BUG_ON(dma_has_cap(DMA_SLAVE, device->cap_mask) && + !device->device_prep_slave_sg); + BUG_ON(dma_has_cap(DMA_SLAVE, device->cap_mask) && + !device->device_terminate_all); BUG_ON(!device->device_alloc_chan_resources); BUG_ON(!device->device_free_chan_resources); diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index b058d6360383..9b91d341e1fa 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -89,10 +89,23 @@ enum dma_transaction_type { DMA_MEMSET, DMA_MEMCPY_CRC32C, DMA_INTERRUPT, + DMA_SLAVE, }; /* last transaction type for creation of the capabilities mask */ -#define DMA_TX_TYPE_END (DMA_INTERRUPT + 1) +#define DMA_TX_TYPE_END (DMA_SLAVE + 1) + +/** + * enum dma_slave_width - DMA slave register access width. + * @DMA_SLAVE_WIDTH_8BIT: Do 8-bit slave register accesses + * @DMA_SLAVE_WIDTH_16BIT: Do 16-bit slave register accesses + * @DMA_SLAVE_WIDTH_32BIT: Do 32-bit slave register accesses + */ +enum dma_slave_width { + DMA_SLAVE_WIDTH_8BIT, + DMA_SLAVE_WIDTH_16BIT, + DMA_SLAVE_WIDTH_32BIT, +}; /** * enum dma_ctrl_flags - DMA flags to augment operation preparation, @@ -118,6 +131,32 @@ enum dma_ctrl_flags { */ typedef struct { DECLARE_BITMAP(bits, DMA_TX_TYPE_END); } dma_cap_mask_t; +/** + * struct dma_slave - Information about a DMA slave + * @dev: device acting as DMA slave + * @dma_dev: required DMA master device. If non-NULL, the client can not be + * bound to other masters than this. + * @tx_reg: physical address of data register used for + * memory-to-peripheral transfers + * @rx_reg: physical address of data register used for + * peripheral-to-memory transfers + * @reg_width: peripheral register width + * + * If dma_dev is non-NULL, the client can not be bound to other DMA + * masters than the one corresponding to this device. The DMA master + * driver may use this to determine if there is controller-specific + * data wrapped around this struct. Drivers of platform code that sets + * the dma_dev field must therefore make sure to use an appropriate + * controller-specific dma slave structure wrapping this struct. + */ +struct dma_slave { + struct device *dev; + struct device *dma_dev; + dma_addr_t tx_reg; + dma_addr_t rx_reg; + enum dma_slave_width reg_width; +}; + /** * struct dma_chan_percpu - the per-CPU part of struct dma_chan * @refcount: local_t used for open-coded "bigref" counting @@ -208,11 +247,14 @@ typedef enum dma_state_client (*dma_event_callback) (struct dma_client *client, * @event_callback: func ptr to call when something happens * @cap_mask: only return channels that satisfy the requested capabilities * a value of zero corresponds to any capability + * @slave: data for preparing slave transfer. Must be non-NULL iff the + * DMA_SLAVE capability is requested. * @global_node: list_head for global dma_client_list */ struct dma_client { dma_event_callback event_callback; dma_cap_mask_t cap_mask; + struct dma_slave *slave; struct list_head global_node; }; @@ -269,6 +311,8 @@ struct dma_async_tx_descriptor { * @device_prep_dma_zero_sum: prepares a zero_sum operation * @device_prep_dma_memset: prepares a memset operation * @device_prep_dma_interrupt: prepares an end of chain interrupt operation + * @device_prep_slave_sg: prepares a slave dma operation + * @device_terminate_all: terminate all pending operations * @device_issue_pending: push pending transactions to hardware */ struct dma_device { @@ -304,6 +348,12 @@ struct dma_device { struct dma_async_tx_descriptor *(*device_prep_dma_interrupt)( struct dma_chan *chan, unsigned long flags); + struct dma_async_tx_descriptor *(*device_prep_slave_sg)( + struct dma_chan *chan, struct scatterlist *sgl, + unsigned int sg_len, enum dma_data_direction direction, + unsigned long flags); + void (*device_terminate_all)(struct dma_chan *chan); + enum dma_status (*device_is_tx_complete)(struct dma_chan *chan, dma_cookie_t cookie, dma_cookie_t *last, dma_cookie_t *used); -- cgit v1.2.3 From 3bfb1d20b547a5071d01344581eac5846ea84491 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Tue, 8 Jul 2008 11:59:42 -0700 Subject: dmaengine: Driver for the Synopsys DesignWare DMA controller This adds a driver for the Synopsys DesignWare DMA controller (aka DMACA on AVR32 systems.) This DMA controller can be found integrated on the AT32AP7000 chip and is primarily meant for peripheral DMA transfer, but can also be used for memory-to-memory transfers. This patch is based on a driver from David Brownell which was based on an older version of the DMA Engine framework. It also implements the proposed extensions to the DMA Engine API for slave DMA operations. The dmatest client shows no problems, but there may still be room for improvement performance-wise. DMA slave transfer performance is definitely "good enough"; reading 100 MiB from an SD card running at ~20 MHz yields ~7.2 MiB/s average transfer rate. Full documentation for this controller can be found in the Synopsys DW AHB DMAC Databook: http://www.synopsys.com/designware/docs/iip/DW_ahb_dmac/latest/doc/dw_ahb_dmac_db.pdf The controller has lots of implementation options, so it's usually a good idea to check the data sheet of the chip it's intergrated on as well. The AT32AP7000 data sheet can be found here: http://www.atmel.com/dyn/products/datasheets.asp?family_id=682 Changes since v4: * Use client_count instead of dma_chan_is_in_use() * Add missing include * Unmap buffers unless client told us not to Changes since v3: * Update to latest DMA engine and DMA slave APIs * Embed the hw descriptor into the sw descriptor * Clean up and update MODULE_DESCRIPTION, copyright date, etc. Changes since v2: * Dequeue all pending transfers in terminate_all() * Rename dw_dmac.h -> dw_dmac_regs.h * Define and use controller-specific dma_slave data * Fix up a few outdated comments * Define hardware registers as structs (doesn't generate better code, unfortunately, but it looks nicer.) * Get number of channels from platform_data instead of hardcoding it based on CONFIG_WHATEVER_CPU. * Give slave clients exclusive access to the channel Acked-by: Maciej Sosnowski , Signed-off-by: Haavard Skinnemoen Signed-off-by: Dan Williams --- arch/avr32/mach-at32ap/at32ap700x.c | 27 +- drivers/dma/Kconfig | 9 + drivers/dma/Makefile | 1 + drivers/dma/dw_dmac.c | 1122 ++++++++++++++++++++++++++++ drivers/dma/dw_dmac_regs.h | 225 ++++++ include/asm-avr32/arch-at32ap/at32ap700x.h | 16 + include/linux/dw_dmac.h | 62 ++ 7 files changed, 1449 insertions(+), 13 deletions(-) create mode 100644 drivers/dma/dw_dmac.c create mode 100644 drivers/dma/dw_dmac_regs.h create mode 100644 include/linux/dw_dmac.h (limited to 'include') diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c index 0f24b4f85c17..892e27e0d583 100644 --- a/arch/avr32/mach-at32ap/at32ap700x.c +++ b/arch/avr32/mach-at32ap/at32ap700x.c @@ -7,6 +7,7 @@ */ #include #include +#include #include #include #include @@ -599,6 +600,17 @@ static void __init genclk_init_parent(struct clk *clk) clk->parent = parent; } +static struct dw_dma_platform_data dw_dmac0_data = { + .nr_channels = 3, +}; + +static struct resource dw_dmac0_resource[] = { + PBMEM(0xff200000), + IRQ(2), +}; +DEFINE_DEV_DATA(dw_dmac, 0); +DEV_CLK(hclk, dw_dmac0, hsb, 10); + /* -------------------------------------------------------------------- * System peripherals * -------------------------------------------------------------------- */ @@ -705,17 +717,6 @@ static struct clk pico_clk = { .users = 1, }; -static struct resource dmaca0_resource[] = { - { - .start = 0xff200000, - .end = 0xff20ffff, - .flags = IORESOURCE_MEM, - }, - IRQ(2), -}; -DEFINE_DEV(dmaca, 0); -DEV_CLK(hclk, dmaca0, hsb, 10); - /* -------------------------------------------------------------------- * HMATRIX * -------------------------------------------------------------------- */ @@ -828,7 +829,7 @@ void __init at32_add_system_devices(void) platform_device_register(&at32_eic0_device); platform_device_register(&smc0_device); platform_device_register(&pdc_device); - platform_device_register(&dmaca0_device); + platform_device_register(&dw_dmac0_device); platform_device_register(&at32_tcb0_device); platform_device_register(&at32_tcb1_device); @@ -1891,7 +1892,7 @@ struct clk *at32_clock_list[] = { &smc0_mck, &pdc_hclk, &pdc_pclk, - &dmaca0_hclk, + &dw_dmac0_hclk, &pico_clk, &pio0_mck, &pio1_mck, diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 4b6bd3d099cf..cd303901eb5b 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -38,6 +38,15 @@ config INTEL_IOP_ADMA help Enable support for the Intel(R) IOP Series RAID engines. +config DW_DMAC + tristate "Synopsys DesignWare AHB DMA support" + depends on AVR32 + select DMA_ENGINE + default y if CPU_AT32AP7000 + help + Support the Synopsys DesignWare AHB DMA controller. This + can be integrated in chips such as the Atmel AT32ap7000. + config FSL_DMA bool "Freescale MPC85xx/MPC83xx DMA support" depends on PPC diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index 181e3646fbfe..14f59527d4f6 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -6,3 +6,4 @@ ioatdma-objs := ioat.o ioat_dma.o ioat_dca.o obj-$(CONFIG_INTEL_IOP_ADMA) += iop-adma.o obj-$(CONFIG_FSL_DMA) += fsldma.o obj-$(CONFIG_MV_XOR) += mv_xor.o +obj-$(CONFIG_DW_DMAC) += dw_dmac.o diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c new file mode 100644 index 000000000000..94df91771243 --- /dev/null +++ b/drivers/dma/dw_dmac.c @@ -0,0 +1,1122 @@ +/* + * Driver for the Synopsys DesignWare DMA Controller (aka DMACA on + * AVR32 systems.) + * + * Copyright (C) 2007-2008 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "dw_dmac_regs.h" + +/* + * This supports the Synopsys "DesignWare AHB Central DMA Controller", + * (DW_ahb_dmac) which is used with various AMBA 2.0 systems (not all + * of which use ARM any more). See the "Databook" from Synopsys for + * information beyond what licensees probably provide. + * + * The driver has currently been tested only with the Atmel AT32AP7000, + * which does not support descriptor writeback. + */ + +/* NOTE: DMS+SMS is system-specific. We should get this information + * from the platform code somehow. + */ +#define DWC_DEFAULT_CTLLO (DWC_CTLL_DST_MSIZE(0) \ + | DWC_CTLL_SRC_MSIZE(0) \ + | DWC_CTLL_DMS(0) \ + | DWC_CTLL_SMS(1) \ + | DWC_CTLL_LLP_D_EN \ + | DWC_CTLL_LLP_S_EN) + +/* + * This is configuration-dependent and usually a funny size like 4095. + * Let's round it down to the nearest power of two. + * + * Note that this is a transfer count, i.e. if we transfer 32-bit + * words, we can do 8192 bytes per descriptor. + * + * This parameter is also system-specific. + */ +#define DWC_MAX_COUNT 2048U + +/* + * Number of descriptors to allocate for each channel. This should be + * made configurable somehow; preferably, the clients (at least the + * ones using slave transfers) should be able to give us a hint. + */ +#define NR_DESCS_PER_CHANNEL 64 + +/*----------------------------------------------------------------------*/ + +/* + * Because we're not relying on writeback from the controller (it may not + * even be configured into the core!) we don't need to use dma_pool. These + * descriptors -- and associated data -- are cacheable. We do need to make + * sure their dcache entries are written back before handing them off to + * the controller, though. + */ + +static struct dw_desc *dwc_first_active(struct dw_dma_chan *dwc) +{ + return list_entry(dwc->active_list.next, struct dw_desc, desc_node); +} + +static struct dw_desc *dwc_first_queued(struct dw_dma_chan *dwc) +{ + return list_entry(dwc->queue.next, struct dw_desc, desc_node); +} + +static struct dw_desc *dwc_desc_get(struct dw_dma_chan *dwc) +{ + struct dw_desc *desc, *_desc; + struct dw_desc *ret = NULL; + unsigned int i = 0; + + spin_lock_bh(&dwc->lock); + list_for_each_entry_safe(desc, _desc, &dwc->free_list, desc_node) { + if (async_tx_test_ack(&desc->txd)) { + list_del(&desc->desc_node); + ret = desc; + break; + } + dev_dbg(&dwc->chan.dev, "desc %p not ACKed\n", desc); + i++; + } + spin_unlock_bh(&dwc->lock); + + dev_vdbg(&dwc->chan.dev, "scanned %u descriptors on freelist\n", i); + + return ret; +} + +static void dwc_sync_desc_for_cpu(struct dw_dma_chan *dwc, struct dw_desc *desc) +{ + struct dw_desc *child; + + list_for_each_entry(child, &desc->txd.tx_list, desc_node) + dma_sync_single_for_cpu(dwc->chan.dev.parent, + child->txd.phys, sizeof(child->lli), + DMA_TO_DEVICE); + dma_sync_single_for_cpu(dwc->chan.dev.parent, + desc->txd.phys, sizeof(desc->lli), + DMA_TO_DEVICE); +} + +/* + * Move a descriptor, including any children, to the free list. + * `desc' must not be on any lists. + */ +static void dwc_desc_put(struct dw_dma_chan *dwc, struct dw_desc *desc) +{ + if (desc) { + struct dw_desc *child; + + dwc_sync_desc_for_cpu(dwc, desc); + + spin_lock_bh(&dwc->lock); + list_for_each_entry(child, &desc->txd.tx_list, desc_node) + dev_vdbg(&dwc->chan.dev, + "moving child desc %p to freelist\n", + child); + list_splice_init(&desc->txd.tx_list, &dwc->free_list); + dev_vdbg(&dwc->chan.dev, "moving desc %p to freelist\n", desc); + list_add(&desc->desc_node, &dwc->free_list); + spin_unlock_bh(&dwc->lock); + } +} + +/* Called with dwc->lock held and bh disabled */ +static dma_cookie_t +dwc_assign_cookie(struct dw_dma_chan *dwc, struct dw_desc *desc) +{ + dma_cookie_t cookie = dwc->chan.cookie; + + if (++cookie < 0) + cookie = 1; + + dwc->chan.cookie = cookie; + desc->txd.cookie = cookie; + + return cookie; +} + +/*----------------------------------------------------------------------*/ + +/* Called with dwc->lock held and bh disabled */ +static void dwc_dostart(struct dw_dma_chan *dwc, struct dw_desc *first) +{ + struct dw_dma *dw = to_dw_dma(dwc->chan.device); + + /* ASSERT: channel is idle */ + if (dma_readl(dw, CH_EN) & dwc->mask) { + dev_err(&dwc->chan.dev, + "BUG: Attempted to start non-idle channel\n"); + dev_err(&dwc->chan.dev, + " SAR: 0x%x DAR: 0x%x LLP: 0x%x CTL: 0x%x:%08x\n", + channel_readl(dwc, SAR), + channel_readl(dwc, DAR), + channel_readl(dwc, LLP), + channel_readl(dwc, CTL_HI), + channel_readl(dwc, CTL_LO)); + + /* The tasklet will hopefully advance the queue... */ + return; + } + + channel_writel(dwc, LLP, first->txd.phys); + channel_writel(dwc, CTL_LO, + DWC_CTLL_LLP_D_EN | DWC_CTLL_LLP_S_EN); + channel_writel(dwc, CTL_HI, 0); + channel_set_bit(dw, CH_EN, dwc->mask); +} + +/*----------------------------------------------------------------------*/ + +static void +dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc) +{ + dma_async_tx_callback callback; + void *param; + struct dma_async_tx_descriptor *txd = &desc->txd; + + dev_vdbg(&dwc->chan.dev, "descriptor %u complete\n", txd->cookie); + + dwc->completed = txd->cookie; + callback = txd->callback; + param = txd->callback_param; + + dwc_sync_desc_for_cpu(dwc, desc); + list_splice_init(&txd->tx_list, &dwc->free_list); + list_move(&desc->desc_node, &dwc->free_list); + + /* + * We use dma_unmap_page() regardless of how the buffers were + * mapped before they were submitted... + */ + if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) + dma_unmap_page(dwc->chan.dev.parent, desc->lli.dar, desc->len, + DMA_FROM_DEVICE); + if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) + dma_unmap_page(dwc->chan.dev.parent, desc->lli.sar, desc->len, + DMA_TO_DEVICE); + + /* + * The API requires that no submissions are done from a + * callback, so we don't need to drop the lock here + */ + if (callback) + callback(param); +} + +static void dwc_complete_all(struct dw_dma *dw, struct dw_dma_chan *dwc) +{ + struct dw_desc *desc, *_desc; + LIST_HEAD(list); + + if (dma_readl(dw, CH_EN) & dwc->mask) { + dev_err(&dwc->chan.dev, + "BUG: XFER bit set, but channel not idle!\n"); + + /* Try to continue after resetting the channel... */ + channel_clear_bit(dw, CH_EN, dwc->mask); + while (dma_readl(dw, CH_EN) & dwc->mask) + cpu_relax(); + } + + /* + * Submit queued descriptors ASAP, i.e. before we go through + * the completed ones. + */ + if (!list_empty(&dwc->queue)) + dwc_dostart(dwc, dwc_first_queued(dwc)); + list_splice_init(&dwc->active_list, &list); + list_splice_init(&dwc->queue, &dwc->active_list); + + list_for_each_entry_safe(desc, _desc, &list, desc_node) + dwc_descriptor_complete(dwc, desc); +} + +static void dwc_scan_descriptors(struct dw_dma *dw, struct dw_dma_chan *dwc) +{ + dma_addr_t llp; + struct dw_desc *desc, *_desc; + struct dw_desc *child; + u32 status_xfer; + + /* + * Clear block interrupt flag before scanning so that we don't + * miss any, and read LLP before RAW_XFER to ensure it is + * valid if we decide to scan the list. + */ + dma_writel(dw, CLEAR.BLOCK, dwc->mask); + llp = channel_readl(dwc, LLP); + status_xfer = dma_readl(dw, RAW.XFER); + + if (status_xfer & dwc->mask) { + /* Everything we've submitted is done */ + dma_writel(dw, CLEAR.XFER, dwc->mask); + dwc_complete_all(dw, dwc); + return; + } + + dev_vdbg(&dwc->chan.dev, "scan_descriptors: llp=0x%x\n", llp); + + list_for_each_entry_safe(desc, _desc, &dwc->active_list, desc_node) { + if (desc->lli.llp == llp) + /* This one is currently in progress */ + return; + + list_for_each_entry(child, &desc->txd.tx_list, desc_node) + if (child->lli.llp == llp) + /* Currently in progress */ + return; + + /* + * No descriptors so far seem to be in progress, i.e. + * this one must be done. + */ + dwc_descriptor_complete(dwc, desc); + } + + dev_err(&dwc->chan.dev, + "BUG: All descriptors done, but channel not idle!\n"); + + /* Try to continue after resetting the channel... */ + channel_clear_bit(dw, CH_EN, dwc->mask); + while (dma_readl(dw, CH_EN) & dwc->mask) + cpu_relax(); + + if (!list_empty(&dwc->queue)) { + dwc_dostart(dwc, dwc_first_queued(dwc)); + list_splice_init(&dwc->queue, &dwc->active_list); + } +} + +static void dwc_dump_lli(struct dw_dma_chan *dwc, struct dw_lli *lli) +{ + dev_printk(KERN_CRIT, &dwc->chan.dev, + " desc: s0x%x d0x%x l0x%x c0x%x:%x\n", + lli->sar, lli->dar, lli->llp, + lli->ctlhi, lli->ctllo); +} + +static void dwc_handle_error(struct dw_dma *dw, struct dw_dma_chan *dwc) +{ + struct dw_desc *bad_desc; + struct dw_desc *child; + + dwc_scan_descriptors(dw, dwc); + + /* + * The descriptor currently at the head of the active list is + * borked. Since we don't have any way to report errors, we'll + * just have to scream loudly and try to carry on. + */ + bad_desc = dwc_first_active(dwc); + list_del_init(&bad_desc->desc_node); + list_splice_init(&dwc->queue, dwc->active_list.prev); + + /* Clear the error flag and try to restart the controller */ + dma_writel(dw, CLEAR.ERROR, dwc->mask); + if (!list_empty(&dwc->active_list)) + dwc_dostart(dwc, dwc_first_active(dwc)); + + /* + * KERN_CRITICAL may seem harsh, but since this only happens + * when someone submits a bad physical address in a + * descriptor, we should consider ourselves lucky that the + * controller flagged an error instead of scribbling over + * random memory locations. + */ + dev_printk(KERN_CRIT, &dwc->chan.dev, + "Bad descriptor submitted for DMA!\n"); + dev_printk(KERN_CRIT, &dwc->chan.dev, + " cookie: %d\n", bad_desc->txd.cookie); + dwc_dump_lli(dwc, &bad_desc->lli); + list_for_each_entry(child, &bad_desc->txd.tx_list, desc_node) + dwc_dump_lli(dwc, &child->lli); + + /* Pretend the descriptor completed successfully */ + dwc_descriptor_complete(dwc, bad_desc); +} + +static void dw_dma_tasklet(unsigned long data) +{ + struct dw_dma *dw = (struct dw_dma *)data; + struct dw_dma_chan *dwc; + u32 status_block; + u32 status_xfer; + u32 status_err; + int i; + + status_block = dma_readl(dw, RAW.BLOCK); + status_xfer = dma_readl(dw, RAW.BLOCK); + status_err = dma_readl(dw, RAW.ERROR); + + dev_vdbg(dw->dma.dev, "tasklet: status_block=%x status_err=%x\n", + status_block, status_err); + + for (i = 0; i < dw->dma.chancnt; i++) { + dwc = &dw->chan[i]; + spin_lock(&dwc->lock); + if (status_err & (1 << i)) + dwc_handle_error(dw, dwc); + else if ((status_block | status_xfer) & (1 << i)) + dwc_scan_descriptors(dw, dwc); + spin_unlock(&dwc->lock); + } + + /* + * Re-enable interrupts. Block Complete interrupts are only + * enabled if the INT_EN bit in the descriptor is set. This + * will trigger a scan before the whole list is done. + */ + channel_set_bit(dw, MASK.XFER, dw->all_chan_mask); + channel_set_bit(dw, MASK.BLOCK, dw->all_chan_mask); + channel_set_bit(dw, MASK.ERROR, dw->all_chan_mask); +} + +static irqreturn_t dw_dma_interrupt(int irq, void *dev_id) +{ + struct dw_dma *dw = dev_id; + u32 status; + + dev_vdbg(dw->dma.dev, "interrupt: status=0x%x\n", + dma_readl(dw, STATUS_INT)); + + /* + * Just disable the interrupts. We'll turn them back on in the + * softirq handler. + */ + channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask); + channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask); + channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask); + + status = dma_readl(dw, STATUS_INT); + if (status) { + dev_err(dw->dma.dev, + "BUG: Unexpected interrupts pending: 0x%x\n", + status); + + /* Try to recover */ + channel_clear_bit(dw, MASK.XFER, (1 << 8) - 1); + channel_clear_bit(dw, MASK.BLOCK, (1 << 8) - 1); + channel_clear_bit(dw, MASK.SRC_TRAN, (1 << 8) - 1); + channel_clear_bit(dw, MASK.DST_TRAN, (1 << 8) - 1); + channel_clear_bit(dw, MASK.ERROR, (1 << 8) - 1); + } + + tasklet_schedule(&dw->tasklet); + + return IRQ_HANDLED; +} + +/*----------------------------------------------------------------------*/ + +static dma_cookie_t dwc_tx_submit(struct dma_async_tx_descriptor *tx) +{ + struct dw_desc *desc = txd_to_dw_desc(tx); + struct dw_dma_chan *dwc = to_dw_dma_chan(tx->chan); + dma_cookie_t cookie; + + spin_lock_bh(&dwc->lock); + cookie = dwc_assign_cookie(dwc, desc); + + /* + * REVISIT: We should attempt to chain as many descriptors as + * possible, perhaps even appending to those already submitted + * for DMA. But this is hard to do in a race-free manner. + */ + if (list_empty(&dwc->active_list)) { + dev_vdbg(&tx->chan->dev, "tx_submit: started %u\n", + desc->txd.cookie); + dwc_dostart(dwc, desc); + list_add_tail(&desc->desc_node, &dwc->active_list); + } else { + dev_vdbg(&tx->chan->dev, "tx_submit: queued %u\n", + desc->txd.cookie); + + list_add_tail(&desc->desc_node, &dwc->queue); + } + + spin_unlock_bh(&dwc->lock); + + return cookie; +} + +static struct dma_async_tx_descriptor * +dwc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, + size_t len, unsigned long flags) +{ + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); + struct dw_desc *desc; + struct dw_desc *first; + struct dw_desc *prev; + size_t xfer_count; + size_t offset; + unsigned int src_width; + unsigned int dst_width; + u32 ctllo; + + dev_vdbg(&chan->dev, "prep_dma_memcpy d0x%x s0x%x l0x%zx f0x%lx\n", + dest, src, len, flags); + + if (unlikely(!len)) { + dev_dbg(&chan->dev, "prep_dma_memcpy: length is zero!\n"); + return NULL; + } + + /* + * We can be a lot more clever here, but this should take care + * of the most common optimization. + */ + if (!((src | dest | len) & 3)) + src_width = dst_width = 2; + else if (!((src | dest | len) & 1)) + src_width = dst_width = 1; + else + src_width = dst_width = 0; + + ctllo = DWC_DEFAULT_CTLLO + | DWC_CTLL_DST_WIDTH(dst_width) + | DWC_CTLL_SRC_WIDTH(src_width) + | DWC_CTLL_DST_INC + | DWC_CTLL_SRC_INC + | DWC_CTLL_FC_M2M; + prev = first = NULL; + + for (offset = 0; offset < len; offset += xfer_count << src_width) { + xfer_count = min_t(size_t, (len - offset) >> src_width, + DWC_MAX_COUNT); + + desc = dwc_desc_get(dwc); + if (!desc) + goto err_desc_get; + + desc->lli.sar = src + offset; + desc->lli.dar = dest + offset; + desc->lli.ctllo = ctllo; + desc->lli.ctlhi = xfer_count; + + if (!first) { + first = desc; + } else { + prev->lli.llp = desc->txd.phys; + dma_sync_single_for_device(chan->dev.parent, + prev->txd.phys, sizeof(prev->lli), + DMA_TO_DEVICE); + list_add_tail(&desc->desc_node, + &first->txd.tx_list); + } + prev = desc; + } + + + if (flags & DMA_PREP_INTERRUPT) + /* Trigger interrupt after last block */ + prev->lli.ctllo |= DWC_CTLL_INT_EN; + + prev->lli.llp = 0; + dma_sync_single_for_device(chan->dev.parent, + prev->txd.phys, sizeof(prev->lli), + DMA_TO_DEVICE); + + first->txd.flags = flags; + first->len = len; + + return &first->txd; + +err_desc_get: + dwc_desc_put(dwc, first); + return NULL; +} + +static struct dma_async_tx_descriptor * +dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, + unsigned int sg_len, enum dma_data_direction direction, + unsigned long flags) +{ + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); + struct dw_dma_slave *dws = dwc->dws; + struct dw_desc *prev; + struct dw_desc *first; + u32 ctllo; + dma_addr_t reg; + unsigned int reg_width; + unsigned int mem_width; + unsigned int i; + struct scatterlist *sg; + size_t total_len = 0; + + dev_vdbg(&chan->dev, "prep_dma_slave\n"); + + if (unlikely(!dws || !sg_len)) + return NULL; + + reg_width = dws->slave.reg_width; + prev = first = NULL; + + sg_len = dma_map_sg(chan->dev.parent, sgl, sg_len, direction); + + switch (direction) { + case DMA_TO_DEVICE: + ctllo = (DWC_DEFAULT_CTLLO + | DWC_CTLL_DST_WIDTH(reg_width) + | DWC_CTLL_DST_FIX + | DWC_CTLL_SRC_INC + | DWC_CTLL_FC_M2P); + reg = dws->slave.tx_reg; + for_each_sg(sgl, sg, sg_len, i) { + struct dw_desc *desc; + u32 len; + u32 mem; + + desc = dwc_desc_get(dwc); + if (!desc) { + dev_err(&chan->dev, + "not enough descriptors available\n"); + goto err_desc_get; + } + + mem = sg_phys(sg); + len = sg_dma_len(sg); + mem_width = 2; + if (unlikely(mem & 3 || len & 3)) + mem_width = 0; + + desc->lli.sar = mem; + desc->lli.dar = reg; + desc->lli.ctllo = ctllo | DWC_CTLL_SRC_WIDTH(mem_width); + desc->lli.ctlhi = len >> mem_width; + + if (!first) { + first = desc; + } else { + prev->lli.llp = desc->txd.phys; + dma_sync_single_for_device(chan->dev.parent, + prev->txd.phys, + sizeof(prev->lli), + DMA_TO_DEVICE); + list_add_tail(&desc->desc_node, + &first->txd.tx_list); + } + prev = desc; + total_len += len; + } + break; + case DMA_FROM_DEVICE: + ctllo = (DWC_DEFAULT_CTLLO + | DWC_CTLL_SRC_WIDTH(reg_width) + | DWC_CTLL_DST_INC + | DWC_CTLL_SRC_FIX + | DWC_CTLL_FC_P2M); + + reg = dws->slave.rx_reg; + for_each_sg(sgl, sg, sg_len, i) { + struct dw_desc *desc; + u32 len; + u32 mem; + + desc = dwc_desc_get(dwc); + if (!desc) { + dev_err(&chan->dev, + "not enough descriptors available\n"); + goto err_desc_get; + } + + mem = sg_phys(sg); + len = sg_dma_len(sg); + mem_width = 2; + if (unlikely(mem & 3 || len & 3)) + mem_width = 0; + + desc->lli.sar = reg; + desc->lli.dar = mem; + desc->lli.ctllo = ctllo | DWC_CTLL_DST_WIDTH(mem_width); + desc->lli.ctlhi = len >> reg_width; + + if (!first) { + first = desc; + } else { + prev->lli.llp = desc->txd.phys; + dma_sync_single_for_device(chan->dev.parent, + prev->txd.phys, + sizeof(prev->lli), + DMA_TO_DEVICE); + list_add_tail(&desc->desc_node, + &first->txd.tx_list); + } + prev = desc; + total_len += len; + } + break; + default: + return NULL; + } + + if (flags & DMA_PREP_INTERRUPT) + /* Trigger interrupt after last block */ + prev->lli.ctllo |= DWC_CTLL_INT_EN; + + prev->lli.llp = 0; + dma_sync_single_for_device(chan->dev.parent, + prev->txd.phys, sizeof(prev->lli), + DMA_TO_DEVICE); + + first->len = total_len; + + return &first->txd; + +err_desc_get: + dwc_desc_put(dwc, first); + return NULL; +} + +static void dwc_terminate_all(struct dma_chan *chan) +{ + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); + struct dw_dma *dw = to_dw_dma(chan->device); + struct dw_desc *desc, *_desc; + LIST_HEAD(list); + + /* + * This is only called when something went wrong elsewhere, so + * we don't really care about the data. Just disable the + * channel. We still have to poll the channel enable bit due + * to AHB/HSB limitations. + */ + spin_lock_bh(&dwc->lock); + + channel_clear_bit(dw, CH_EN, dwc->mask); + + while (dma_readl(dw, CH_EN) & dwc->mask) + cpu_relax(); + + /* active_list entries will end up before queued entries */ + list_splice_init(&dwc->queue, &list); + list_splice_init(&dwc->active_list, &list); + + spin_unlock_bh(&dwc->lock); + + /* Flush all pending and queued descriptors */ + list_for_each_entry_safe(desc, _desc, &list, desc_node) + dwc_descriptor_complete(dwc, desc); +} + +static enum dma_status +dwc_is_tx_complete(struct dma_chan *chan, + dma_cookie_t cookie, + dma_cookie_t *done, dma_cookie_t *used) +{ + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); + dma_cookie_t last_used; + dma_cookie_t last_complete; + int ret; + + last_complete = dwc->completed; + last_used = chan->cookie; + + ret = dma_async_is_complete(cookie, last_complete, last_used); + if (ret != DMA_SUCCESS) { + dwc_scan_descriptors(to_dw_dma(chan->device), dwc); + + last_complete = dwc->completed; + last_used = chan->cookie; + + ret = dma_async_is_complete(cookie, last_complete, last_used); + } + + if (done) + *done = last_complete; + if (used) + *used = last_used; + + return ret; +} + +static void dwc_issue_pending(struct dma_chan *chan) +{ + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); + + spin_lock_bh(&dwc->lock); + if (!list_empty(&dwc->queue)) + dwc_scan_descriptors(to_dw_dma(chan->device), dwc); + spin_unlock_bh(&dwc->lock); +} + +static int dwc_alloc_chan_resources(struct dma_chan *chan, + struct dma_client *client) +{ + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); + struct dw_dma *dw = to_dw_dma(chan->device); + struct dw_desc *desc; + struct dma_slave *slave; + struct dw_dma_slave *dws; + int i; + u32 cfghi; + u32 cfglo; + + dev_vdbg(&chan->dev, "alloc_chan_resources\n"); + + /* Channels doing slave DMA can only handle one client. */ + if (dwc->dws || client->slave) { + if (chan->client_count) + return -EBUSY; + } + + /* ASSERT: channel is idle */ + if (dma_readl(dw, CH_EN) & dwc->mask) { + dev_dbg(&chan->dev, "DMA channel not idle?\n"); + return -EIO; + } + + dwc->completed = chan->cookie = 1; + + cfghi = DWC_CFGH_FIFO_MODE; + cfglo = 0; + + slave = client->slave; + if (slave) { + /* + * We need controller-specific data to set up slave + * transfers. + */ + BUG_ON(!slave->dma_dev || slave->dma_dev != dw->dma.dev); + + dws = container_of(slave, struct dw_dma_slave, slave); + + dwc->dws = dws; + cfghi = dws->cfg_hi; + cfglo = dws->cfg_lo; + } else { + dwc->dws = NULL; + } + + channel_writel(dwc, CFG_LO, cfglo); + channel_writel(dwc, CFG_HI, cfghi); + + /* + * NOTE: some controllers may have additional features that we + * need to initialize here, like "scatter-gather" (which + * doesn't mean what you think it means), and status writeback. + */ + + spin_lock_bh(&dwc->lock); + i = dwc->descs_allocated; + while (dwc->descs_allocated < NR_DESCS_PER_CHANNEL) { + spin_unlock_bh(&dwc->lock); + + desc = kzalloc(sizeof(struct dw_desc), GFP_KERNEL); + if (!desc) { + dev_info(&chan->dev, + "only allocated %d descriptors\n", i); + spin_lock_bh(&dwc->lock); + break; + } + + dma_async_tx_descriptor_init(&desc->txd, chan); + desc->txd.tx_submit = dwc_tx_submit; + desc->txd.flags = DMA_CTRL_ACK; + INIT_LIST_HEAD(&desc->txd.tx_list); + desc->txd.phys = dma_map_single(chan->dev.parent, &desc->lli, + sizeof(desc->lli), DMA_TO_DEVICE); + dwc_desc_put(dwc, desc); + + spin_lock_bh(&dwc->lock); + i = ++dwc->descs_allocated; + } + + /* Enable interrupts */ + channel_set_bit(dw, MASK.XFER, dwc->mask); + channel_set_bit(dw, MASK.BLOCK, dwc->mask); + channel_set_bit(dw, MASK.ERROR, dwc->mask); + + spin_unlock_bh(&dwc->lock); + + dev_dbg(&chan->dev, + "alloc_chan_resources allocated %d descriptors\n", i); + + return i; +} + +static void dwc_free_chan_resources(struct dma_chan *chan) +{ + struct dw_dma_chan *dwc = to_dw_dma_chan(chan); + struct dw_dma *dw = to_dw_dma(chan->device); + struct dw_desc *desc, *_desc; + LIST_HEAD(list); + + dev_dbg(&chan->dev, "free_chan_resources (descs allocated=%u)\n", + dwc->descs_allocated); + + /* ASSERT: channel is idle */ + BUG_ON(!list_empty(&dwc->active_list)); + BUG_ON(!list_empty(&dwc->queue)); + BUG_ON(dma_readl(to_dw_dma(chan->device), CH_EN) & dwc->mask); + + spin_lock_bh(&dwc->lock); + list_splice_init(&dwc->free_list, &list); + dwc->descs_allocated = 0; + dwc->dws = NULL; + + /* Disable interrupts */ + channel_clear_bit(dw, MASK.XFER, dwc->mask); + channel_clear_bit(dw, MASK.BLOCK, dwc->mask); + channel_clear_bit(dw, MASK.ERROR, dwc->mask); + + spin_unlock_bh(&dwc->lock); + + list_for_each_entry_safe(desc, _desc, &list, desc_node) { + dev_vdbg(&chan->dev, " freeing descriptor %p\n", desc); + dma_unmap_single(chan->dev.parent, desc->txd.phys, + sizeof(desc->lli), DMA_TO_DEVICE); + kfree(desc); + } + + dev_vdbg(&chan->dev, "free_chan_resources done\n"); +} + +/*----------------------------------------------------------------------*/ + +static void dw_dma_off(struct dw_dma *dw) +{ + dma_writel(dw, CFG, 0); + + channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask); + channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask); + channel_clear_bit(dw, MASK.SRC_TRAN, dw->all_chan_mask); + channel_clear_bit(dw, MASK.DST_TRAN, dw->all_chan_mask); + channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask); + + while (dma_readl(dw, CFG) & DW_CFG_DMA_EN) + cpu_relax(); +} + +static int __init dw_probe(struct platform_device *pdev) +{ + struct dw_dma_platform_data *pdata; + struct resource *io; + struct dw_dma *dw; + size_t size; + int irq; + int err; + int i; + + pdata = pdev->dev.platform_data; + if (!pdata || pdata->nr_channels > DW_DMA_MAX_NR_CHANNELS) + return -EINVAL; + + io = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!io) + return -EINVAL; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + size = sizeof(struct dw_dma); + size += pdata->nr_channels * sizeof(struct dw_dma_chan); + dw = kzalloc(size, GFP_KERNEL); + if (!dw) + return -ENOMEM; + + if (!request_mem_region(io->start, DW_REGLEN, pdev->dev.driver->name)) { + err = -EBUSY; + goto err_kfree; + } + + memset(dw, 0, sizeof *dw); + + dw->regs = ioremap(io->start, DW_REGLEN); + if (!dw->regs) { + err = -ENOMEM; + goto err_release_r; + } + + dw->clk = clk_get(&pdev->dev, "hclk"); + if (IS_ERR(dw->clk)) { + err = PTR_ERR(dw->clk); + goto err_clk; + } + clk_enable(dw->clk); + + /* force dma off, just in case */ + dw_dma_off(dw); + + err = request_irq(irq, dw_dma_interrupt, 0, "dw_dmac", dw); + if (err) + goto err_irq; + + platform_set_drvdata(pdev, dw); + + tasklet_init(&dw->tasklet, dw_dma_tasklet, (unsigned long)dw); + + dw->all_chan_mask = (1 << pdata->nr_channels) - 1; + + INIT_LIST_HEAD(&dw->dma.channels); + for (i = 0; i < pdata->nr_channels; i++, dw->dma.chancnt++) { + struct dw_dma_chan *dwc = &dw->chan[i]; + + dwc->chan.device = &dw->dma; + dwc->chan.cookie = dwc->completed = 1; + dwc->chan.chan_id = i; + list_add_tail(&dwc->chan.device_node, &dw->dma.channels); + + dwc->ch_regs = &__dw_regs(dw)->CHAN[i]; + spin_lock_init(&dwc->lock); + dwc->mask = 1 << i; + + INIT_LIST_HEAD(&dwc->active_list); + INIT_LIST_HEAD(&dwc->queue); + INIT_LIST_HEAD(&dwc->free_list); + + channel_clear_bit(dw, CH_EN, dwc->mask); + } + + /* Clear/disable all interrupts on all channels. */ + dma_writel(dw, CLEAR.XFER, dw->all_chan_mask); + dma_writel(dw, CLEAR.BLOCK, dw->all_chan_mask); + dma_writel(dw, CLEAR.SRC_TRAN, dw->all_chan_mask); + dma_writel(dw, CLEAR.DST_TRAN, dw->all_chan_mask); + dma_writel(dw, CLEAR.ERROR, dw->all_chan_mask); + + channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask); + channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask); + channel_clear_bit(dw, MASK.SRC_TRAN, dw->all_chan_mask); + channel_clear_bit(dw, MASK.DST_TRAN, dw->all_chan_mask); + channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask); + + dma_cap_set(DMA_MEMCPY, dw->dma.cap_mask); + dma_cap_set(DMA_SLAVE, dw->dma.cap_mask); + dw->dma.dev = &pdev->dev; + dw->dma.device_alloc_chan_resources = dwc_alloc_chan_resources; + dw->dma.device_free_chan_resources = dwc_free_chan_resources; + + dw->dma.device_prep_dma_memcpy = dwc_prep_dma_memcpy; + + dw->dma.device_prep_slave_sg = dwc_prep_slave_sg; + dw->dma.device_terminate_all = dwc_terminate_all; + + dw->dma.device_is_tx_complete = dwc_is_tx_complete; + dw->dma.device_issue_pending = dwc_issue_pending; + + dma_writel(dw, CFG, DW_CFG_DMA_EN); + + printk(KERN_INFO "%s: DesignWare DMA Controller, %d channels\n", + pdev->dev.bus_id, dw->dma.chancnt); + + dma_async_device_register(&dw->dma); + + return 0; + +err_irq: + clk_disable(dw->clk); + clk_put(dw->clk); +err_clk: + iounmap(dw->regs); + dw->regs = NULL; +err_release_r: + release_resource(io); +err_kfree: + kfree(dw); + return err; +} + +static int __exit dw_remove(struct platform_device *pdev) +{ + struct dw_dma *dw = platform_get_drvdata(pdev); + struct dw_dma_chan *dwc, *_dwc; + struct resource *io; + + dw_dma_off(dw); + dma_async_device_unregister(&dw->dma); + + free_irq(platform_get_irq(pdev, 0), dw); + tasklet_kill(&dw->tasklet); + + list_for_each_entry_safe(dwc, _dwc, &dw->dma.channels, + chan.device_node) { + list_del(&dwc->chan.device_node); + channel_clear_bit(dw, CH_EN, dwc->mask); + } + + clk_disable(dw->clk); + clk_put(dw->clk); + + iounmap(dw->regs); + dw->regs = NULL; + + io = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(io->start, DW_REGLEN); + + kfree(dw); + + return 0; +} + +static void dw_shutdown(struct platform_device *pdev) +{ + struct dw_dma *dw = platform_get_drvdata(pdev); + + dw_dma_off(platform_get_drvdata(pdev)); + clk_disable(dw->clk); +} + +static int dw_suspend_late(struct platform_device *pdev, pm_message_t mesg) +{ + struct dw_dma *dw = platform_get_drvdata(pdev); + + dw_dma_off(platform_get_drvdata(pdev)); + clk_disable(dw->clk); + return 0; +} + +static int dw_resume_early(struct platform_device *pdev) +{ + struct dw_dma *dw = platform_get_drvdata(pdev); + + clk_enable(dw->clk); + dma_writel(dw, CFG, DW_CFG_DMA_EN); + return 0; + +} + +static struct platform_driver dw_driver = { + .remove = __exit_p(dw_remove), + .shutdown = dw_shutdown, + .suspend_late = dw_suspend_late, + .resume_early = dw_resume_early, + .driver = { + .name = "dw_dmac", + }, +}; + +static int __init dw_init(void) +{ + return platform_driver_probe(&dw_driver, dw_probe); +} +module_init(dw_init); + +static void __exit dw_exit(void) +{ + platform_driver_unregister(&dw_driver); +} +module_exit(dw_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller driver"); +MODULE_AUTHOR("Haavard Skinnemoen "); diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h new file mode 100644 index 000000000000..00fdd187bb0c --- /dev/null +++ b/drivers/dma/dw_dmac_regs.h @@ -0,0 +1,225 @@ +/* + * Driver for the Synopsys DesignWare AHB DMA Controller + * + * Copyright (C) 2005-2007 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include + +#define DW_DMA_MAX_NR_CHANNELS 8 + +/* + * Redefine this macro to handle differences between 32- and 64-bit + * addressing, big vs. little endian, etc. + */ +#define DW_REG(name) u32 name; u32 __pad_##name + +/* Hardware register definitions. */ +struct dw_dma_chan_regs { + DW_REG(SAR); /* Source Address Register */ + DW_REG(DAR); /* Destination Address Register */ + DW_REG(LLP); /* Linked List Pointer */ + u32 CTL_LO; /* Control Register Low */ + u32 CTL_HI; /* Control Register High */ + DW_REG(SSTAT); + DW_REG(DSTAT); + DW_REG(SSTATAR); + DW_REG(DSTATAR); + u32 CFG_LO; /* Configuration Register Low */ + u32 CFG_HI; /* Configuration Register High */ + DW_REG(SGR); + DW_REG(DSR); +}; + +struct dw_dma_irq_regs { + DW_REG(XFER); + DW_REG(BLOCK); + DW_REG(SRC_TRAN); + DW_REG(DST_TRAN); + DW_REG(ERROR); +}; + +struct dw_dma_regs { + /* per-channel registers */ + struct dw_dma_chan_regs CHAN[DW_DMA_MAX_NR_CHANNELS]; + + /* irq handling */ + struct dw_dma_irq_regs RAW; /* r */ + struct dw_dma_irq_regs STATUS; /* r (raw & mask) */ + struct dw_dma_irq_regs MASK; /* rw (set = irq enabled) */ + struct dw_dma_irq_regs CLEAR; /* w (ack, affects "raw") */ + + DW_REG(STATUS_INT); /* r */ + + /* software handshaking */ + DW_REG(REQ_SRC); + DW_REG(REQ_DST); + DW_REG(SGL_REQ_SRC); + DW_REG(SGL_REQ_DST); + DW_REG(LAST_SRC); + DW_REG(LAST_DST); + + /* miscellaneous */ + DW_REG(CFG); + DW_REG(CH_EN); + DW_REG(ID); + DW_REG(TEST); + + /* optional encoded params, 0x3c8..0x3 */ +}; + +/* Bitfields in CTL_LO */ +#define DWC_CTLL_INT_EN (1 << 0) /* irqs enabled? */ +#define DWC_CTLL_DST_WIDTH(n) ((n)<<1) /* bytes per element */ +#define DWC_CTLL_SRC_WIDTH(n) ((n)<<4) +#define DWC_CTLL_DST_INC (0<<7) /* DAR update/not */ +#define DWC_CTLL_DST_DEC (1<<7) +#define DWC_CTLL_DST_FIX (2<<7) +#define DWC_CTLL_SRC_INC (0<<7) /* SAR update/not */ +#define DWC_CTLL_SRC_DEC (1<<9) +#define DWC_CTLL_SRC_FIX (2<<9) +#define DWC_CTLL_DST_MSIZE(n) ((n)<<11) /* burst, #elements */ +#define DWC_CTLL_SRC_MSIZE(n) ((n)<<14) +#define DWC_CTLL_S_GATH_EN (1 << 17) /* src gather, !FIX */ +#define DWC_CTLL_D_SCAT_EN (1 << 18) /* dst scatter, !FIX */ +#define DWC_CTLL_FC_M2M (0 << 20) /* mem-to-mem */ +#define DWC_CTLL_FC_M2P (1 << 20) /* mem-to-periph */ +#define DWC_CTLL_FC_P2M (2 << 20) /* periph-to-mem */ +#define DWC_CTLL_FC_P2P (3 << 20) /* periph-to-periph */ +/* plus 4 transfer types for peripheral-as-flow-controller */ +#define DWC_CTLL_DMS(n) ((n)<<23) /* dst master select */ +#define DWC_CTLL_SMS(n) ((n)<<25) /* src master select */ +#define DWC_CTLL_LLP_D_EN (1 << 27) /* dest block chain */ +#define DWC_CTLL_LLP_S_EN (1 << 28) /* src block chain */ + +/* Bitfields in CTL_HI */ +#define DWC_CTLH_DONE 0x00001000 +#define DWC_CTLH_BLOCK_TS_MASK 0x00000fff + +/* Bitfields in CFG_LO. Platform-configurable bits are in */ +#define DWC_CFGL_CH_SUSP (1 << 8) /* pause xfer */ +#define DWC_CFGL_FIFO_EMPTY (1 << 9) /* pause xfer */ +#define DWC_CFGL_HS_DST (1 << 10) /* handshake w/dst */ +#define DWC_CFGL_HS_SRC (1 << 11) /* handshake w/src */ +#define DWC_CFGL_MAX_BURST(x) ((x) << 20) +#define DWC_CFGL_RELOAD_SAR (1 << 30) +#define DWC_CFGL_RELOAD_DAR (1 << 31) + +/* Bitfields in CFG_HI. Platform-configurable bits are in */ +#define DWC_CFGH_DS_UPD_EN (1 << 5) +#define DWC_CFGH_SS_UPD_EN (1 << 6) + +/* Bitfields in SGR */ +#define DWC_SGR_SGI(x) ((x) << 0) +#define DWC_SGR_SGC(x) ((x) << 20) + +/* Bitfields in DSR */ +#define DWC_DSR_DSI(x) ((x) << 0) +#define DWC_DSR_DSC(x) ((x) << 20) + +/* Bitfields in CFG */ +#define DW_CFG_DMA_EN (1 << 0) + +#define DW_REGLEN 0x400 + +struct dw_dma_chan { + struct dma_chan chan; + void __iomem *ch_regs; + u8 mask; + + spinlock_t lock; + + /* these other elements are all protected by lock */ + dma_cookie_t completed; + struct list_head active_list; + struct list_head queue; + struct list_head free_list; + + struct dw_dma_slave *dws; + + unsigned int descs_allocated; +}; + +static inline struct dw_dma_chan_regs __iomem * +__dwc_regs(struct dw_dma_chan *dwc) +{ + return dwc->ch_regs; +} + +#define channel_readl(dwc, name) \ + __raw_readl(&(__dwc_regs(dwc)->name)) +#define channel_writel(dwc, name, val) \ + __raw_writel((val), &(__dwc_regs(dwc)->name)) + +static inline struct dw_dma_chan *to_dw_dma_chan(struct dma_chan *chan) +{ + return container_of(chan, struct dw_dma_chan, chan); +} + + +struct dw_dma { + struct dma_device dma; + void __iomem *regs; + struct tasklet_struct tasklet; + struct clk *clk; + + u8 all_chan_mask; + + struct dw_dma_chan chan[0]; +}; + +static inline struct dw_dma_regs __iomem *__dw_regs(struct dw_dma *dw) +{ + return dw->regs; +} + +#define dma_readl(dw, name) \ + __raw_readl(&(__dw_regs(dw)->name)) +#define dma_writel(dw, name, val) \ + __raw_writel((val), &(__dw_regs(dw)->name)) + +#define channel_set_bit(dw, reg, mask) \ + dma_writel(dw, reg, ((mask) << 8) | (mask)) +#define channel_clear_bit(dw, reg, mask) \ + dma_writel(dw, reg, ((mask) << 8) | 0) + +static inline struct dw_dma *to_dw_dma(struct dma_device *ddev) +{ + return container_of(ddev, struct dw_dma, dma); +} + +/* LLI == Linked List Item; a.k.a. DMA block descriptor */ +struct dw_lli { + /* values that are not changed by hardware */ + dma_addr_t sar; + dma_addr_t dar; + dma_addr_t llp; /* chain to next lli */ + u32 ctllo; + /* values that may get written back: */ + u32 ctlhi; + /* sstat and dstat can snapshot peripheral register state. + * silicon config may discard either or both... + */ + u32 sstat; + u32 dstat; +}; + +struct dw_desc { + /* FIRST values the hardware uses */ + struct dw_lli lli; + + /* THEN values for driver housekeeping */ + struct list_head desc_node; + struct dma_async_tx_descriptor txd; + size_t len; +}; + +static inline struct dw_desc * +txd_to_dw_desc(struct dma_async_tx_descriptor *txd) +{ + return container_of(txd, struct dw_desc, txd); +} diff --git a/include/asm-avr32/arch-at32ap/at32ap700x.h b/include/asm-avr32/arch-at32ap/at32ap700x.h index 31e48b0e7324..d18a3053be0d 100644 --- a/include/asm-avr32/arch-at32ap/at32ap700x.h +++ b/include/asm-avr32/arch-at32ap/at32ap700x.h @@ -30,4 +30,20 @@ #define GPIO_PIN_PD(N) (GPIO_PIOD_BASE + (N)) #define GPIO_PIN_PE(N) (GPIO_PIOE_BASE + (N)) + +/* + * DMAC peripheral hardware handshaking interfaces, used with dw_dmac + */ +#define DMAC_MCI_RX 0 +#define DMAC_MCI_TX 1 +#define DMAC_DAC_TX 2 +#define DMAC_AC97_A_RX 3 +#define DMAC_AC97_A_TX 4 +#define DMAC_AC97_B_RX 5 +#define DMAC_AC97_B_TX 6 +#define DMAC_DMAREQ_0 7 +#define DMAC_DMAREQ_1 8 +#define DMAC_DMAREQ_2 9 +#define DMAC_DMAREQ_3 10 + #endif /* __ASM_ARCH_AT32AP700X_H__ */ diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h new file mode 100644 index 000000000000..04d217b442bf --- /dev/null +++ b/include/linux/dw_dmac.h @@ -0,0 +1,62 @@ +/* + * Driver for the Synopsys DesignWare DMA Controller (aka DMACA on + * AVR32 systems.) + * + * Copyright (C) 2007 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef DW_DMAC_H +#define DW_DMAC_H + +#include + +/** + * struct dw_dma_platform_data - Controller configuration parameters + * @nr_channels: Number of channels supported by hardware (max 8) + */ +struct dw_dma_platform_data { + unsigned int nr_channels; +}; + +/** + * struct dw_dma_slave - Controller-specific information about a slave + * @slave: Generic information about the slave + * @ctl_lo: Platform-specific initializer for the CTL_LO register + * @cfg_hi: Platform-specific initializer for the CFG_HI register + * @cfg_lo: Platform-specific initializer for the CFG_LO register + */ +struct dw_dma_slave { + struct dma_slave slave; + u32 cfg_hi; + u32 cfg_lo; +}; + +/* Platform-configurable bits in CFG_HI */ +#define DWC_CFGH_FCMODE (1 << 0) +#define DWC_CFGH_FIFO_MODE (1 << 1) +#define DWC_CFGH_PROTCTL(x) ((x) << 2) +#define DWC_CFGH_SRC_PER(x) ((x) << 7) +#define DWC_CFGH_DST_PER(x) ((x) << 11) + +/* Platform-configurable bits in CFG_LO */ +#define DWC_CFGL_PRIO(x) ((x) << 5) /* priority */ +#define DWC_CFGL_LOCK_CH_XFER (0 << 12) /* scope of LOCK_CH */ +#define DWC_CFGL_LOCK_CH_BLOCK (1 << 12) +#define DWC_CFGL_LOCK_CH_XACT (2 << 12) +#define DWC_CFGL_LOCK_BUS_XFER (0 << 14) /* scope of LOCK_BUS */ +#define DWC_CFGL_LOCK_BUS_BLOCK (1 << 14) +#define DWC_CFGL_LOCK_BUS_XACT (2 << 14) +#define DWC_CFGL_LOCK_CH (1 << 15) /* channel lockout */ +#define DWC_CFGL_LOCK_BUS (1 << 16) /* busmaster lockout */ +#define DWC_CFGL_HS_DST_POL (1 << 18) /* dst handshake active low */ +#define DWC_CFGL_HS_SRC_POL (1 << 19) /* src handshake active low */ + +static inline struct dw_dma_slave *to_dw_dma_slave(struct dma_slave *slave) +{ + return container_of(slave, struct dw_dma_slave, slave); +} + +#endif /* DW_DMAC_H */ -- cgit v1.2.3 From e172274ccc55d20536fbdceb6131f38e288541e0 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 13 Jun 2008 09:17:31 +0100 Subject: [ARM] 5088/3: pxa2xx: add pxa2xx_set_spi_info to register pxa2xx-spi platform devices Add a function to dynamically allocate and register pxa2xx-spi platform devices, to be used by PXA2xx and PXA3xx based systems. Switch pcm027 and lubbock to use it. Signed-off-by: Guennadi Liakhovetski Acked-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/Kconfig | 1 + arch/arm/mach-pxa/devices.c | 18 ++++++++++++++++++ arch/arm/mach-pxa/lubbock.c | 10 +--------- arch/arm/mach-pxa/pcm027.c | 31 +++++++++++++++++++++++++++++++ include/asm-arm/arch-pxa/pxa2xx_spi.h | 2 ++ 5 files changed, 53 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 914bb33dab92..ef7271e37810 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -139,6 +139,7 @@ config MACH_PCM027 bool "Phytec phyCORE-PXA270 CPU module (PCM-027)" select PXA27x select IWMMXT + select PXA_SSP endmenu diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c index a6f2390ce662..abc161dd083a 100644 --- a/arch/arm/mach-pxa/devices.c +++ b/arch/arm/mach-pxa/devices.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include @@ -831,3 +832,20 @@ void __init pxa3xx_set_mci3_info(struct pxamci_platform_data *info) } #endif /* CONFIG_PXA3xx */ + +/* pxa2xx-spi platform-device ID equals respective SSP platform-device ID + 1. + * See comment in arch/arm/mach-pxa/ssp.c::ssp_probe() */ +void __init pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info) +{ + struct platform_device *pd; + + pd = platform_device_alloc("pxa2xx-spi", id); + if (pd == NULL) { + printk(KERN_ERR "pxa2xx-spi: failed to allocate device id %d\n", + id); + return; + } + + pd->dev.platform_data = info; + platform_device_add(pd); +} diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index a3fae4139203..e041cceab16b 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -226,14 +226,6 @@ static struct pxa2xx_spi_master pxa_ssp_master_info = { .num_chipselect = 0, }; -static struct platform_device pxa_ssp = { - .name = "pxa2xx-spi", - .id = 1, - .dev = { - .platform_data = &pxa_ssp_master_info, - }, -}; - static int lubbock_ads7846_pendown_state(void) { /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */ @@ -367,7 +359,6 @@ static struct platform_device *devices[] __initdata = { &smc91x_device, &lubbock_flash_device[0], &lubbock_flash_device[1], - &pxa_ssp, }; static struct pxafb_mode_info sharp_lm8v31_mode = { @@ -501,6 +492,7 @@ static void __init lubbock_init(void) lubbock_flash_data[flashboot].name = "boot-rom"; (void) platform_add_devices(devices, ARRAY_SIZE(devices)); + pxa2xx_set_spi_info(1, &pxa_ssp_master_info); spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); } diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c index 3b945eb0aee3..377f3be8ce57 100644 --- a/arch/arm/mach-pxa/pcm027.c +++ b/arch/arm/mach-pxa/pcm027.c @@ -24,7 +24,9 @@ #include #include #include +#include #include + #include #include #include @@ -108,6 +110,32 @@ static struct platform_device smc91x_device = { .resource = smc91x_resources, }; +/* + * SPI host and devices + */ +static struct pxa2xx_spi_master pxa_ssp_master_info = { + .num_chipselect = 1, +}; + +static struct max7301_platform_data max7301_info = { + .base = -1, +}; + +/* bus_num must match id in pxa2xx_set_spi_info() call */ +static struct spi_board_info spi_board_info[] __initdata = { + { + .modalias = "max7301", + .platform_data = &max7301_info, + .max_speed_hz = 13000000, + .bus_num = 1, + .chip_select = 0, + .mode = SPI_MODE_0, + }, +}; + +/* + * NOR flash + */ static struct physmap_flash_data pcm027_flash_data = { .width = 4, }; @@ -190,6 +218,9 @@ static void __init pcm027_init(void) #ifdef CONFIG_MACH_PCM990_BASEBOARD pcm990_baseboard_init(); #endif + + pxa2xx_set_spi_info(1, &pxa_ssp_master_info); + spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); } static void __init pcm027_map_io(void) diff --git a/include/asm-arm/arch-pxa/pxa2xx_spi.h b/include/asm-arm/arch-pxa/pxa2xx_spi.h index 3459fb26ce97..2206cb61a9f9 100644 --- a/include/asm-arm/arch-pxa/pxa2xx_spi.h +++ b/include/asm-arm/arch-pxa/pxa2xx_spi.h @@ -41,4 +41,6 @@ struct pxa2xx_spi_chip { void (*cs_control)(u32 command); }; +extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); + #endif /*PXA2XX_SPI_H_*/ -- cgit v1.2.3 From 839257c9a818c81a802fdd705602589355571662 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Tue, 17 Jun 2008 09:49:27 +0100 Subject: [ARM] 5106/1: CM-X270: remove unneeded cm-x270.h The include/asm-arm/arch-pxa/cm-x270.h is not used anymore. Remove it. Signed-off-by: Mike Rapoport Signed-off-by: Russell King --- include/asm-arm/arch-pxa/cm-x270.h | 50 -------------------------------------- 1 file changed, 50 deletions(-) delete mode 100644 include/asm-arm/arch-pxa/cm-x270.h (limited to 'include') diff --git a/include/asm-arm/arch-pxa/cm-x270.h b/include/asm-arm/arch-pxa/cm-x270.h deleted file mode 100644 index f8fac9e18009..000000000000 --- a/include/asm-arm/arch-pxa/cm-x270.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * linux/include/asm/arch-pxa/cm-x270.h - * - * Copyright Compulab Ltd., 2003, 2007 - * Mike Rapoport - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - - -/* CM-x270 device physical addresses */ -#define CMX270_CS1_PHYS (PXA_CS1_PHYS) -#define MARATHON_PHYS (PXA_CS2_PHYS) -#define CMX270_IDE104_PHYS (PXA_CS3_PHYS) -#define CMX270_IT8152_PHYS (PXA_CS4_PHYS) - -/* Statically mapped regions */ -#define CMX270_VIRT_BASE (0xe8000000) -#define CMX270_IT8152_VIRT (CMX270_VIRT_BASE) -#define CMX270_IDE104_VIRT (CMX270_IT8152_VIRT + SZ_64M) - -/* GPIO related definitions */ -#define GPIO_IT8152_IRQ (22) - -#define IRQ_GPIO_IT8152_IRQ IRQ_GPIO(GPIO_IT8152_IRQ) -#define PME_IRQ IRQ_GPIO(0) -#define CMX270_IDE_IRQ IRQ_GPIO(100) -#define CMX270_GPIRQ1 IRQ_GPIO(101) -#define CMX270_TOUCHIRQ IRQ_GPIO(96) -#define CMX270_ETHIRQ IRQ_GPIO(10) -#define CMX270_GFXIRQ IRQ_GPIO(95) -#define CMX270_NANDIRQ IRQ_GPIO(89) -#define CMX270_MMC_IRQ IRQ_GPIO(83) - -/* PCMCIA related definitions */ -#define PCC_DETECT(x) (GPLR(84 - (x)) & GPIO_bit(84 - (x))) -#define PCC_READY(x) (GPLR(82 - (x)) & GPIO_bit(82 - (x))) - -#define PCMCIA_S0_CD_VALID IRQ_GPIO(84) -#define PCMCIA_S0_CD_VALID_EDGE GPIO_BOTH_EDGES - -#define PCMCIA_S1_CD_VALID IRQ_GPIO(83) -#define PCMCIA_S1_CD_VALID_EDGE GPIO_BOTH_EDGES - -#define PCMCIA_S0_RDYINT IRQ_GPIO(82) -#define PCMCIA_S1_RDYINT IRQ_GPIO(81) - -#define PCMCIA_RESET_GPIO 53 -- cgit v1.2.3 From 6d3dfe4a3141476a3cf59ce6d2d1c25f9b5cfae8 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 2 Jun 2008 15:58:03 +0800 Subject: [ARM] pxa: allow display of uncompress message through STUART Some boards use UART other than FFUART for the console, E.g. Marvell PXA3xx Form Factor Platform (aka Littleton) uses STUART. This patch modifies the uncompress.h so that display of the uncompress message is routed to the STUART. Signed-off-by: Eric Miao Signed-off-by: Russell King --- include/asm-arm/arch-pxa/uncompress.h | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/asm-arm/arch-pxa/uncompress.h b/include/asm-arm/arch-pxa/uncompress.h index dadf4c20b622..f4551269aaf2 100644 --- a/include/asm-arm/arch-pxa/uncompress.h +++ b/include/asm-arm/arch-pxa/uncompress.h @@ -11,11 +11,11 @@ #include #include +#include -#define __REG(x) ((volatile unsigned long *)x) - -#define UART FFUART +#define __REG(x) ((volatile unsigned long *)x) +static volatile unsigned long *UART = FFUART; static inline void putc(char c) { @@ -33,8 +33,13 @@ static inline void flush(void) { } +static inline void arch_decomp_setup(void) +{ + if (machine_is_littleton()) + UART = STUART; +} + /* * nothing to do */ -#define arch_decomp_setup() #define arch_decomp_wdog() -- cgit v1.2.3 From 566b450c33ea43f339d54d445f4ea1ab2e021909 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 16 Jun 2008 09:47:47 +0800 Subject: [ARM] pxa: add pxa2xx_mfp_set_lpm() to facilitate low power state change Some boards want to change low power state of pins on-the-fly, this function helps to facilitate that operation instead of switching back-n-forth between two configurations with pxa2xx_mfp_config(). Signed-off-by: Eric Miao Tested-by: Robert Jarzmik Signed-off-by: Russell King --- arch/arm/mach-pxa/mfp-pxa2xx.c | 51 +++++++++++++++++++++++++---------- include/asm-arm/arch-pxa/mfp-pxa2xx.h | 1 + 2 files changed, 38 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c index ed91c043471b..fd4545eab803 100644 --- a/arch/arm/mach-pxa/mfp-pxa2xx.c +++ b/arch/arm/mach-pxa/mfp-pxa2xx.c @@ -39,6 +39,28 @@ struct gpio_desc { static struct gpio_desc gpio_desc[MFP_PIN_GPIO127 + 1]; +static int __mfp_config_lpm(unsigned gpio, unsigned long lpm) +{ + unsigned mask = GPIO_bit(gpio); + + /* low power state */ + switch (lpm) { + case MFP_LPM_DRIVE_HIGH: + PGSR(gpio) |= mask; + break; + case MFP_LPM_DRIVE_LOW: + PGSR(gpio) &= ~mask; + break; + case MFP_LPM_INPUT: + break; + default: + pr_warning("%s: invalid low power state for GPIO%d\n", + __func__, gpio); + return -EINVAL; + } + return 0; +} + static int __mfp_config_gpio(unsigned gpio, unsigned long c) { unsigned long gafr, mask = GPIO_bit(gpio); @@ -57,21 +79,8 @@ static int __mfp_config_gpio(unsigned gpio, unsigned long c) else GPDR(gpio) &= ~mask; - /* low power state */ - switch (c & MFP_LPM_STATE_MASK) { - case MFP_LPM_DRIVE_HIGH: - PGSR(gpio) |= mask; - break; - case MFP_LPM_DRIVE_LOW: - PGSR(gpio) &= ~mask; - break; - case MFP_LPM_INPUT: - break; - default: - pr_warning("%s: invalid low power state for GPIO%d\n", - __func__, gpio); + if (__mfp_config_lpm(gpio, c & MFP_LPM_STATE_MASK)) return -EINVAL; - } /* give early warning if MFP_LPM_CAN_WAKEUP is set on the * configurations of those pins not able to wakeup @@ -124,6 +133,20 @@ void pxa2xx_mfp_config(unsigned long *mfp_cfgs, int num) } } +void pxa2xx_mfp_set_lpm(int mfp, unsigned long lpm) +{ + unsigned long flags; + int gpio; + + gpio = __mfp_validate(mfp); + if (gpio < 0) + return; + + local_irq_save(flags); + __mfp_config_lpm(gpio, lpm); + local_irq_restore(flags); +} + int gpio_set_wake(unsigned int gpio, unsigned int on) { struct gpio_desc *d; diff --git a/include/asm-arm/arch-pxa/mfp-pxa2xx.h b/include/asm-arm/arch-pxa/mfp-pxa2xx.h index db8d890d237c..8de1c0dae624 100644 --- a/include/asm-arm/arch-pxa/mfp-pxa2xx.h +++ b/include/asm-arm/arch-pxa/mfp-pxa2xx.h @@ -128,5 +128,6 @@ #define GPIO84_GPIO MFP_CFG_IN(GPIO84, AF0) extern void pxa2xx_mfp_config(unsigned long *mfp_cfgs, int num); +extern void pxa2xx_mfp_set_lpm(int mfp, unsigned long lpm); extern int gpio_set_wake(unsigned int gpio, unsigned int on); #endif /* __ASM_ARCH_MFP_PXA2XX_H */ -- cgit v1.2.3 From 9ae819a819b4dfc60ac13dd1f1e1a7eaa3d4a6cb Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 2 Jun 2008 15:22:03 +0800 Subject: [ARM] pxa: add pxa3xx NAND device and clock sources A pxa3xx_set_nand_info() is also introduced to set the PXA3xx NAND driver specific platform_data structure pointer. Signed-off-by: Eric Miao Cc: Sergey Podstavin Signed-off-by: Russell King --- arch/arm/mach-pxa/devices.c | 43 ++++++++++++++++++++++++++++++++++ arch/arm/mach-pxa/devices.h | 2 ++ arch/arm/mach-pxa/pxa300.c | 5 ++++ arch/arm/mach-pxa/pxa320.c | 11 +++++++++ include/asm-arm/arch-pxa/pxa3xx_nand.h | 2 ++ 5 files changed, 63 insertions(+) (limited to 'include') diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c index abc161dd083a..84489dc51d81 100644 --- a/arch/arm/mach-pxa/devices.c +++ b/arch/arm/mach-pxa/devices.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "devices.h" #include "generic.h" @@ -831,6 +832,48 @@ void __init pxa3xx_set_mci3_info(struct pxamci_platform_data *info) pxa_register_device(&pxa3xx_device_mci3, info); } +static struct resource pxa3xx_resources_nand[] = { + [0] = { + .start = 0x43100000, + .end = 0x43100053, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_NAND, + .end = IRQ_NAND, + .flags = IORESOURCE_IRQ, + }, + [2] = { + /* DRCMR for Data DMA */ + .start = 97, + .end = 97, + .flags = IORESOURCE_DMA, + }, + [3] = { + /* DRCMR for Command DMA */ + .start = 99, + .end = 99, + .flags = IORESOURCE_DMA, + }, +}; + +static u64 pxa3xx_nand_dma_mask = DMA_BIT_MASK(32); + +struct platform_device pxa3xx_device_nand = { + .name = "pxa3xx-nand", + .id = -1, + .dev = { + .dma_mask = &pxa3xx_nand_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .num_resources = ARRAY_SIZE(pxa3xx_resources_nand), + .resource = pxa3xx_resources_nand, +}; + +void __init pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info) +{ + pxa_register_device(&pxa3xx_device_nand, info); +} #endif /* CONFIG_PXA3xx */ /* pxa2xx-spi platform-device ID equals respective SSP platform-device ID + 1. diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h index b852eb18daa5..887c738f5911 100644 --- a/arch/arm/mach-pxa/devices.h +++ b/arch/arm/mach-pxa/devices.h @@ -31,4 +31,6 @@ extern struct platform_device pxa25x_device_pwm1; extern struct platform_device pxa27x_device_pwm0; extern struct platform_device pxa27x_device_pwm1; +extern struct platform_device pxa3xx_device_nand; + void __init pxa_register_device(struct platform_device *dev, void *data); diff --git a/arch/arm/mach-pxa/pxa300.c b/arch/arm/mach-pxa/pxa300.c index a0db6fa7c323..da92e9733886 100644 --- a/arch/arm/mach-pxa/pxa300.c +++ b/arch/arm/mach-pxa/pxa300.c @@ -85,6 +85,10 @@ static struct pxa3xx_mfp_addr_map pxa310_mfp_addr_map[] __initdata = { MFP_ADDR_END, }; +static struct clk common_clks[] = { + PXA3xx_CKEN("NANDCLK", NAND, 156000000, 0, &pxa3xx_device_nand.dev), +}; + static struct clk pxa310_clks[] = { PXA3xx_CKEN("MMCCLK", MMC3, 19500000, 0, &pxa3xx_device_mci3.dev), }; @@ -94,6 +98,7 @@ static int __init pxa300_init(void) if (cpu_is_pxa300() || cpu_is_pxa310()) { pxa3xx_init_mfp(); pxa3xx_mfp_init_addr(pxa300_mfp_addr_map); + clks_register(ARRAY_AND_SIZE(common_clks)); } if (cpu_is_pxa310()) { diff --git a/arch/arm/mach-pxa/pxa320.c b/arch/arm/mach-pxa/pxa320.c index 44ef0b95db00..c557c23a1efe 100644 --- a/arch/arm/mach-pxa/pxa320.c +++ b/arch/arm/mach-pxa/pxa320.c @@ -15,11 +15,17 @@ #include #include +#include #include #include +#include #include +#include "generic.h" +#include "devices.h" +#include "clock.h" + static struct pxa3xx_mfp_addr_map pxa320_mfp_addr_map[] __initdata = { MFP_ADDR_X(GPIO0, GPIO4, 0x0124), @@ -74,11 +80,16 @@ static struct pxa3xx_mfp_addr_map pxa320_mfp_addr_map[] __initdata = { MFP_ADDR_END, }; +static struct clk pxa320_clks[] = { + PXA3xx_CKEN("NANDCLK", NAND, 104000000, 0, &pxa3xx_device_nand.dev), +}; + static int __init pxa320_init(void) { if (cpu_is_pxa320()) { pxa3xx_init_mfp(); pxa3xx_mfp_init_addr(pxa320_mfp_addr_map); + clks_register(ARRAY_AND_SIZE(pxa320_clks)); } return 0; diff --git a/include/asm-arm/arch-pxa/pxa3xx_nand.h b/include/asm-arm/arch-pxa/pxa3xx_nand.h index 81a8937486cb..eb4b190b6657 100644 --- a/include/asm-arm/arch-pxa/pxa3xx_nand.h +++ b/include/asm-arm/arch-pxa/pxa3xx_nand.h @@ -15,4 +15,6 @@ struct pxa3xx_nand_platform_data { struct mtd_partition *parts; unsigned int nr_parts; }; + +extern void pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info); #endif /* __ASM_ARCH_PXA3XX_NAND_H */ -- cgit v1.2.3 From a1f7fc48c143537e2bf70affee7e8932f5be9bb4 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Wed, 28 May 2008 10:44:16 +0800 Subject: [ARM] pxa: add GPIO expander (PCA9539) support for zylonite And also reserve 32 IRQs for the two GPIO expanders. Signed-off-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/zylonite_pxa300.c | 42 +++++++++++++++++++++++++++++++++++++ include/asm-arm/arch-pxa/irqs.h | 2 ++ 2 files changed, 44 insertions(+) (limited to 'include') diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c index 6f7ae972b8db..75bf61f1f1c3 100644 --- a/arch/arm/mach-pxa/zylonite_pxa300.c +++ b/arch/arm/mach-pxa/zylonite_pxa300.c @@ -16,9 +16,12 @@ #include #include #include +#include +#include #include #include +#include #include #include "generic.h" @@ -109,6 +112,10 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = { GPIO12_MMC2_DAT3, GPIO13_MMC2_CLK, GPIO14_MMC2_CMD, + + /* Standard I2C */ + GPIO21_I2C_SCL, + GPIO22_I2C_SDA, }; static mfp_cfg_t pxa300_mfp_cfg[] __initdata = { @@ -192,6 +199,39 @@ static void __init zylonite_detect_lcd_panel(void) pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]); } +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static struct pca953x_platform_data gpio_exp[] = { + [0] = { + .gpio_base = 128, + }, + [1] = { + .gpio_base = 144, + }, +}; + +struct i2c_board_info zylonite_i2c_board_info[] = { + { + .type = "pca9539", + .addr = 0x74, + .platform_data = &gpio_exp[0], + .irq = IRQ_GPIO(18), + }, { + .type = "pca9539", + .addr = 0x75, + .platform_data = &gpio_exp[1], + .irq = IRQ_GPIO(19), + }, +}; + +static void __init zylonite_init_i2c(void) +{ + pxa_set_i2c_info(NULL); + i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info)); +} +#else +static inline void zylonite_init_i2c(void) {} +#endif + void __init zylonite_pxa300_init(void) { if (cpu_is_pxa300() || cpu_is_pxa310()) { @@ -207,6 +247,8 @@ void __init zylonite_pxa300_init(void) /* WM9713 IRQ */ wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26); + + zylonite_init_i2c(); } if (cpu_is_pxa300()) { diff --git a/include/asm-arm/arch-pxa/irqs.h b/include/asm-arm/arch-pxa/irqs.h index b6c8fe377683..d85736048461 100644 --- a/include/asm-arm/arch-pxa/irqs.h +++ b/include/asm-arm/arch-pxa/irqs.h @@ -184,6 +184,8 @@ defined(CONFIG_MACH_PCM027) || \ defined(CONFIG_MACH_MAGICIAN) #define NR_IRQS (IRQ_BOARD_END) +#elif defined(CONFIG_MACH_ZYLONITE) +#define NR_IRQS (IRQ_BOARD_START + 32) #else #define NR_IRQS (IRQ_BOARD_START) #endif -- cgit v1.2.3 From 5c9f50e90e8056fb5a8bdd479ab0591d5dad79a0 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Tue, 17 Jun 2008 19:03:54 +0800 Subject: [ARM] pxa: add simple gpio debug LEDs support for zylonite Signed-off-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/zylonite.c | 39 +++++++++++++++++++++++++++++++++++++ arch/arm/mach-pxa/zylonite_pxa300.c | 4 ++++ arch/arm/mach-pxa/zylonite_pxa320.c | 6 ++++++ include/asm-arm/arch-pxa/zylonite.h | 2 ++ 4 files changed, 51 insertions(+) (limited to 'include') diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c index 13ab2985a026..4a4711d36e73 100644 --- a/arch/arm/mach-pxa/zylonite.c +++ b/arch/arm/mach-pxa/zylonite.c @@ -38,6 +38,8 @@ struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS]; int gpio_eth_irq; +int gpio_debug_led1; +int gpio_debug_led2; int wm9713_irq; @@ -64,6 +66,42 @@ static struct platform_device smc91x_device = { .resource = smc91x_resources, }; +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +static struct gpio_led zylonite_debug_leds[] = { + [0] = { + .name = "zylonite:yellow:1", + .default_trigger = "heartbeat", + }, + [1] = { + .name = "zylonite:yellow:2", + .default_trigger = "default-on", + }, +}; + +static struct gpio_led_platform_data zylonite_debug_leds_info = { + .leds = zylonite_debug_leds, + .num_leds = ARRAY_SIZE(zylonite_debug_leds), +}; + +static struct platform_device zylonite_device_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &zylonite_debug_leds_info, + } +}; + +static void __init zylonite_init_leds(void) +{ + zylonite_debug_leds[0].gpio = gpio_debug_led1; + zylonite_debug_leds[1].gpio = gpio_debug_led2; + + platform_device_register(&zylonite_device_leds); +} +#else +static inline void zylonite_init_leds(void) {} +#endif + #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) static struct platform_pwm_backlight_data zylonite_backlight_data = { .pwm_id = 3, @@ -395,6 +433,7 @@ static void __init zylonite_init(void) zylonite_init_mmc(); zylonite_init_keypad(); zylonite_init_nand(); + zylonite_init_leds(); } MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)") diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c index 75bf61f1f1c3..b28d46e081d3 100644 --- a/arch/arm/mach-pxa/zylonite_pxa300.c +++ b/arch/arm/mach-pxa/zylonite_pxa300.c @@ -264,4 +264,8 @@ void __init zylonite_pxa300_init(void) zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30); zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31); } + + /* GPIOs for Debug LEDs */ + gpio_debug_led1 = EXT_GPIO(25); + gpio_debug_led2 = EXT_GPIO(26); } diff --git a/arch/arm/mach-pxa/zylonite_pxa320.c b/arch/arm/mach-pxa/zylonite_pxa320.c index 2b4fc34919ac..2b7fba7a2921 100644 --- a/arch/arm/mach-pxa/zylonite_pxa320.c +++ b/arch/arm/mach-pxa/zylonite_pxa320.c @@ -116,6 +116,10 @@ static mfp_cfg_t mfp_cfg[] __initdata = { GPIO27_MMC2_DAT3, GPIO28_MMC2_CLK, GPIO29_MMC2_CMD, + + /* Debug LEDs */ + GPIO1_2_GPIO | MFP_LPM_DRIVE_HIGH, + GPIO4_2_GPIO | MFP_LPM_DRIVE_HIGH, }; #define NUM_LCD_DETECT_PINS 7 @@ -189,6 +193,8 @@ void __init zylonite_pxa320_init(void) /* GPIO pin assignment */ gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9); + gpio_debug_led1 = mfp_to_gpio(MFP_PIN_GPIO1_2); + gpio_debug_led2 = mfp_to_gpio(MFP_PIN_GPIO4_2); /* MMC card detect & write protect for controller 0 */ zylonite_mmc_slot[0].gpio_cd = mfp_to_gpio(MFP_PIN_GPIO1); diff --git a/include/asm-arm/arch-pxa/zylonite.h b/include/asm-arm/arch-pxa/zylonite.h index de577de8d18c..0d35ca04731e 100644 --- a/include/asm-arm/arch-pxa/zylonite.h +++ b/include/asm-arm/arch-pxa/zylonite.h @@ -16,6 +16,8 @@ struct platform_mmc_slot { extern struct platform_mmc_slot zylonite_mmc_slot[]; extern int gpio_eth_irq; +extern int gpio_debug_led1; +extern int gpio_debug_led2; extern int wm9713_irq; -- cgit v1.2.3 From aa9ae8eb1a917c8794bceef0a8e6ff1f4d7c46de Mon Sep 17 00:00:00 2001 From: Ian Molton Date: Wed, 25 Jun 2008 22:17:16 +0100 Subject: Fix serial broken-ness on PXA250 PXA255 and 26x are the only PXA CPUs with HWUART. This patch prevents bogus initialisation on other models. Signed-off-by: Ian Molton --- arch/arm/mach-pxa/pxa25x.c | 4 ++-- include/asm-arm/arch-pxa/hardware.h | 12 ++++++++++++ 2 files changed, 14 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index 4cd50e3005e9..90b441f5df5a 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -293,7 +293,7 @@ static int __init pxa25x_init(void) int i, ret = 0; /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ - if (cpu_is_pxa25x()) + if (cpu_is_pxa255()) clks_register(&pxa25x_hwuart_clk, 1); if (cpu_is_pxa21x() || cpu_is_pxa25x()) { @@ -317,7 +317,7 @@ static int __init pxa25x_init(void) } /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ - if (cpu_is_pxa25x()) + if (cpu_is_pxa255()) ret = platform_device_register(&pxa_device_hwuart); clks_register(&gpio7_clk, 1); diff --git a/include/asm-arm/arch-pxa/hardware.h b/include/asm-arm/arch-pxa/hardware.h index d9af6dabc899..b6a8317c2ec4 100644 --- a/include/asm-arm/arch-pxa/hardware.h +++ b/include/asm-arm/arch-pxa/hardware.h @@ -69,6 +69,12 @@ _id == 0x212; \ }) +#define __cpu_is_pxa255(id) \ + ({ \ + unsigned int _id = (id) >> 4 & 0xfff; \ + _id == 0x2d0; \ + }) + #define __cpu_is_pxa25x(id) \ ({ \ unsigned int _id = (id) >> 4 & 0xfff; \ @@ -76,6 +82,7 @@ }) #else #define __cpu_is_pxa21x(id) (0) +#define __cpu_is_pxa255(id) (0) #define __cpu_is_pxa25x(id) (0) #endif @@ -124,6 +131,11 @@ __cpu_is_pxa21x(read_cpuid_id()); \ }) +#define cpu_is_pxa255() \ + ({ \ + __cpu_is_pxa255(read_cpuid_id()); \ + }) + #define cpu_is_pxa25x() \ ({ \ __cpu_is_pxa25x(read_cpuid_id()); \ -- cgit v1.2.3 From b5e4ad57eeffef0ac274413f83be4ef903719ea4 Mon Sep 17 00:00:00 2001 From: Marek Vašut Date: Mon, 7 Jul 2008 17:25:46 +0100 Subject: [ARM] 5153/1: Add support for PalmTX handheld computer PalmTX is PXA27x based device with wifi, bluetooth, touchscreen, sdio slot, irda, keypad, nand flash, pxa framebuffer, serial and usb gadget interface. Supported by this patch is pxafb, touchscreen, irda, keypad and sdio slot. Signed-off-by: Marek Vasut Signed-off-by: Russell King --- MAINTAINERS | 6 + arch/arm/mach-pxa/Kconfig | 14 ++ arch/arm/mach-pxa/Makefile | 1 + arch/arm/mach-pxa/palmtx.c | 342 ++++++++++++++++++++++++++++++++++++++ include/asm-arm/arch-pxa/palmtx.h | 106 ++++++++++++ 5 files changed, 469 insertions(+) create mode 100644 arch/arm/mach-pxa/palmtx.c create mode 100644 include/asm-arm/arch-pxa/palmtx.h (limited to 'include') diff --git a/MAINTAINERS b/MAINTAINERS index 8f0ec46a7096..5375740cac64 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -571,6 +571,12 @@ P: Dirk Opfer M: dirk@opfer-online.de S: Maintained +ARM/PALMTX SUPPORT +P: Marek Vasut +M: marek.vasut@gmail.com +W: http://hackndev.com +S: Maintained + ARM/PLEB SUPPORT P: Peter Chubb M: pleb@gelato.unsw.edu.au diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index faa2c3f6c1af..2793076bd33a 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -199,6 +199,20 @@ config MACH_PCM027 select IWMMXT select PXA_SSP +config ARCH_PXA_PALM + bool "PXA based Palm PDAs" + select HAVE_PWM + +config MACH_PALMTX + bool "Palm T|X" + default y + depends on ARCH_PXA_PALM + select PXA27x + select IWMMXT + help + Say Y here if you intend to run this kernel on a Palm T|X + handheld computer. + config MACH_PCM990_BASEBOARD bool "PHYTEC PCM-990 development board" select HAVE_PWM diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index c4dfbe87fc4e..d7dc3a76e33c 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -37,6 +37,7 @@ obj-$(CONFIG_MACH_TOSA) += tosa.o obj-$(CONFIG_MACH_EM_X270) += em-x270.o obj-$(CONFIG_MACH_MAGICIAN) += magician.o obj-$(CONFIG_ARCH_PXA_ESERIES) += eseries.o +obj-$(CONFIG_MACH_PALMTX)+= palmtx.o ifeq ($(CONFIG_MACH_ZYLONITE),y) obj-y += zylonite.o diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c new file mode 100644 index 000000000000..ae8973279c20 --- /dev/null +++ b/arch/arm/mach-pxa/palmtx.c @@ -0,0 +1,342 @@ +/* + * Hardware definitions for PalmTX + * + * Author: Marek Vasut + * + * Based on work of: + * Alex Osborne + * Cristiano P. + * Jan Herman <2hp@seznam.cz> + * Michal Hrusecky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * (find more info at www.hackndev.com) + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "generic.h" +#include "devices.h" + +/****************************************************************************** + * Pin configuration + ******************************************************************************/ +static unsigned long palmtx_pin_config[] __initdata = { + /* MMC */ + GPIO32_MMC_CLK, + GPIO92_MMC_DAT_0, + GPIO109_MMC_DAT_1, + GPIO110_MMC_DAT_2, + GPIO111_MMC_DAT_3, + GPIO112_MMC_CMD, + + /* AC97 */ + GPIO28_AC97_BITCLK, + GPIO29_AC97_SDATA_IN_0, + GPIO30_AC97_SDATA_OUT, + GPIO31_AC97_SYNC, + + /* IrDA */ + GPIO46_FICP_RXD, + GPIO47_FICP_TXD, + + /* PWM */ + GPIO16_PWM0_OUT, + + /* USB */ + GPIO13_GPIO, +}; + +/****************************************************************************** + * SD/MMC card controller + ******************************************************************************/ +static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int, + void *data) +{ + int err = 0; + + /* Setup an interrupt for detecting card insert/remove events */ + err = request_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, palmtx_detect_int, + IRQF_DISABLED | IRQF_SAMPLE_RANDOM | + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, + "SD/MMC card detect", data); + if (err) { + printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n", + __func__); + return err; + } + + err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER"); + if (err) + goto pwr_err; + + err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY"); + if (err) + goto ro_err; + + printk(KERN_DEBUG "%s: irq registered\n", __func__); + + return 0; + +ro_err: + gpio_free(GPIO_NR_PALMTX_SD_POWER); +pwr_err: + free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); + return err; +} + +static void palmtx_mci_exit(struct device *dev, void *data) +{ + gpio_free(GPIO_NR_PALMTX_SD_READONLY); + gpio_free(GPIO_NR_PALMTX_SD_POWER); + free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); +} + +static void palmtx_mci_power(struct device *dev, unsigned int vdd) +{ + struct pxamci_platform_data *p_d = dev->platform_data; + gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd)); +} + +static int palmtx_mci_get_ro(struct device *dev) +{ + return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY); +} + +static struct pxamci_platform_data palmtx_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, + .setpower = palmtx_mci_power, + .get_ro = palmtx_mci_get_ro, + .init = palmtx_mci_init, + .exit = palmtx_mci_exit, +}; + +/****************************************************************************** + * GPIO keyboard + ******************************************************************************/ +static unsigned int palmtx_matrix_keys[] = { + KEY(0, 0, KEY_POWER), + KEY(0, 1, KEY_F1), + KEY(0, 2, KEY_ENTER), + + KEY(1, 0, KEY_F2), + KEY(1, 1, KEY_F3), + KEY(1, 2, KEY_F4), + + KEY(2, 0, KEY_UP), + KEY(2, 2, KEY_DOWN), + + KEY(3, 0, KEY_RIGHT), + KEY(3, 2, KEY_LEFT), + +}; + +static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = { + .matrix_key_rows = 4, + .matrix_key_cols = 3, + .matrix_key_map = palmtx_matrix_keys, + .matrix_key_map_size = ARRAY_SIZE(palmtx_matrix_keys), + + .debounce_interval = 30, +}; + +/****************************************************************************** + * GPIO keys + ******************************************************************************/ +static struct gpio_keys_button palmtx_pxa_buttons[] = { + {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" }, +}; + +static struct gpio_keys_platform_data palmtx_pxa_keys_data = { + .buttons = palmtx_pxa_buttons, + .nbuttons = ARRAY_SIZE(palmtx_pxa_buttons), +}; + +static struct platform_device palmtx_pxa_keys = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &palmtx_pxa_keys_data, + }, +}; + +/****************************************************************************** + * Backlight + ******************************************************************************/ +static int palmtx_backlight_init(struct device *dev) +{ + int ret; + + ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER"); + if (ret) + goto err; + ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER"); + if (ret) + goto err2; + + return 0; +err2: + gpio_free(GPIO_NR_PALMTX_BL_POWER); +err: + return ret; +} + +static int palmtx_backlight_notify(int brightness) +{ + gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness); + gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness); + return brightness; +} + +static void palmtx_backlight_exit(struct device *dev) +{ + gpio_free(GPIO_NR_PALMTX_BL_POWER); + gpio_free(GPIO_NR_PALMTX_LCD_POWER); +} + +static struct platform_pwm_backlight_data palmtx_backlight_data = { + .pwm_id = 0, + .max_brightness = PALMTX_MAX_INTENSITY, + .dft_brightness = PALMTX_MAX_INTENSITY, + .pwm_period_ns = PALMTX_PERIOD_NS, + .init = palmtx_backlight_init, + .notify = palmtx_backlight_notify, + .exit = palmtx_backlight_exit, +}; + +static struct platform_device palmtx_backlight = { + .name = "pwm-backlight", + .dev = { + .parent = &pxa27x_device_pwm0.dev, + .platform_data = &palmtx_backlight_data, + }, +}; + +/****************************************************************************** + * IrDA + ******************************************************************************/ +static void palmtx_irda_transceiver_mode(struct device *dev, int mode) +{ + gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF); + pxa2xx_transceiver_mode(dev, mode); +} + +static struct pxaficp_platform_data palmtx_ficp_platform_data = { + .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, + .transceiver_mode = palmtx_irda_transceiver_mode, +}; + +/****************************************************************************** + * UDC + ******************************************************************************/ +static void palmtx_udc_command(int cmd) +{ + gpio_set_value(GPIO_NR_PALMTX_USB_POWER, !cmd); + udelay(50); + gpio_set_value(GPIO_NR_PALMTX_USB_PULLUP, !cmd); +} + +static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = { + .gpio_vbus = GPIO_NR_PALMTX_USB_DETECT_N, + .gpio_vbus_inverted = 1, + .udc_command = palmtx_udc_command, +}; + +/****************************************************************************** + * Framebuffer + ******************************************************************************/ +static struct pxafb_mode_info palmtx_lcd_modes[] = { +{ + .pixclock = 57692, + .xres = 320, + .yres = 480, + .bpp = 16, + + .left_margin = 32, + .right_margin = 1, + .upper_margin = 7, + .lower_margin = 1, + + .hsync_len = 4, + .vsync_len = 1, +}, +}; + +static struct pxafb_mach_info palmtx_lcd_screen = { + .modes = palmtx_lcd_modes, + .num_modes = ARRAY_SIZE(palmtx_lcd_modes), + .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, +}; + +/****************************************************************************** + * Machine init + ******************************************************************************/ +static struct platform_device *devices[] __initdata = { +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) + &palmtx_pxa_keys, +#endif + &palmtx_backlight, +}; + +static struct map_desc palmtx_io_desc[] __initdata = { +{ + .virtual = PALMTX_PCMCIA_VIRT, + .pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS), + .length = PALMTX_PCMCIA_SIZE, + .type = MT_DEVICE +}, +}; + +static void __init palmtx_map_io(void) +{ + pxa_map_io(); + iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc)); +} + +static void __init palmtx_init(void) +{ + pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config)); + + set_pxa_fb_info(&palmtx_lcd_screen); + pxa_set_mci_info(&palmtx_mci_platform_data); + pxa_set_udc_info(&palmtx_udc_info); + pxa_set_ac97_info(NULL); + pxa_set_ficp_info(&palmtx_ficp_platform_data); + pxa_set_keypad_info(&palmtx_keypad_platform_data); + + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +MACHINE_START(PALMTX, "Palm T|X") + .phys_io = PALMTX_PHYS_IO_START, + .io_pg_offst = io_p2v(0x40000000), + .boot_params = 0xa0000100, + .map_io = palmtx_map_io, + .init_irq = pxa27x_init_irq, + .timer = &pxa_timer, + .init_machine = palmtx_init +MACHINE_END diff --git a/include/asm-arm/arch-pxa/palmtx.h b/include/asm-arm/arch-pxa/palmtx.h new file mode 100644 index 000000000000..1e8bccbda510 --- /dev/null +++ b/include/asm-arm/arch-pxa/palmtx.h @@ -0,0 +1,106 @@ +/* + * GPIOs and interrupts for Palm T|X Handheld Computer + * + * Based on palmld-gpio.h by Alex Osborne + * + * Authors: Marek Vasut + * Cristiano P. + * Jan Herman <2hp@seznam.cz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef _INCLUDE_PALMTX_H_ +#define _INCLUDE_PALMTX_H_ + +/** HERE ARE GPIOs **/ + +/* GPIOs */ +#define GPIO_NR_PALMTX_GPIO_RESET 1 + +#define GPIO_NR_PALMTX_POWER_DETECT 12 /* 90 */ +#define GPIO_NR_PALMTX_HOTSYNC_BUTTON_N 10 +#define GPIO_NR_PALMTX_EARPHONE_DETECT 107 + +/* SD/MMC */ +#define GPIO_NR_PALMTX_SD_DETECT_N 14 +#define GPIO_NR_PALMTX_SD_POWER 114 /* probably */ +#define GPIO_NR_PALMTX_SD_READONLY 115 /* probably */ + +/* TOUCHSCREEN */ +#define GPIO_NR_PALMTX_WM9712_IRQ 27 + +/* IRDA - disable GPIO connected to SD pin of tranceiver (TFBS4710?) ? */ +#define GPIO_NR_PALMTX_IR_DISABLE 40 + +/* USB */ +#define GPIO_NR_PALMTX_USB_DETECT_N 13 +#define GPIO_NR_PALMTX_USB_POWER 95 +#define GPIO_NR_PALMTX_USB_PULLUP 93 + +/* LCD/BACKLIGHT */ +#define GPIO_NR_PALMTX_BL_POWER 84 +#define GPIO_NR_PALMTX_LCD_POWER 96 + +/* LCD BORDER */ +#define GPIO_NR_PALMTX_BORDER_SWITCH 98 +#define GPIO_NR_PALMTX_BORDER_SELECT 22 + +/* BLUETOOTH */ +#define GPIO_NR_PALMTX_BT_POWER 17 +#define GPIO_NR_PALMTX_BT_RESET 83 + +/* PCMCIA (WiFi) */ +#define GPIO_NR_PALMTX_PCMCIA_POWER1 94 +#define GPIO_NR_PALMTX_PCMCIA_POWER2 108 +#define GPIO_NR_PALMTX_PCMCIA_RESET 79 +#define GPIO_NR_PALMTX_PCMCIA_READY 116 + +/* NAND Flash ... this GPIO may be incorrect! */ +#define GPIO_NR_PALMTX_NAND_BUFFER_DIR 79 + +/* INTERRUPTS */ +#define IRQ_GPIO_PALMTX_SD_DETECT_N IRQ_GPIO(GPIO_NR_PALMTX_SD_DETECT_N) +#define IRQ_GPIO_PALMTX_WM9712_IRQ IRQ_GPIO(GPIO_NR_PALMTX_WM9712_IRQ) +#define IRQ_GPIO_PALMTX_USB_DETECT IRQ_GPIO(GPIO_NR_PALMTX_USB_DETECT) +#define IRQ_GPIO_PALMTX_GPIO_RESET IRQ_GPIO(GPIO_NR_PALMTX_GPIO_RESET) + +/** HERE ARE INIT VALUES **/ + +/* Various addresses */ +#define PALMTX_PCMCIA_PHYS 0x28000000 +#define PALMTX_PCMCIA_VIRT 0xf0000000 +#define PALMTX_PCMCIA_SIZE 0x100000 + +#define PALMTX_PHYS_RAM_START 0xa0000000 +#define PALMTX_PHYS_IO_START 0x40000000 + +#define PALMTX_PHYS_FLASH_START PXA_CS0_PHYS /* ChipSelect 0 */ +#define PALMTX_PHYS_NAND_START PXA_CS1_PHYS /* ChipSelect 1 */ + +/* TOUCHSCREEN */ +#define AC97_LINK_FRAME 21 + + +/* BATTERY */ +#define PALMTX_BAT_MAX_VOLTAGE 4000 /* 4.00v current voltage */ +#define PALMTX_BAT_MIN_VOLTAGE 3550 /* 3.55v critical voltage */ +#define PALMTX_BAT_MAX_CURRENT 0 /* unknokn */ +#define PALMTX_BAT_MIN_CURRENT 0 /* unknown */ +#define PALMTX_BAT_MAX_CHARGE 1 /* unknown */ +#define PALMTX_BAT_MIN_CHARGE 1 /* unknown */ +#define PALMTX_MAX_LIFE_MINS 360 /* on-life in minutes */ + +#define PALMTX_BAT_MEASURE_DELAY (HZ * 1) + +/* BACKLIGHT */ +#define PALMTX_MAX_INTENSITY 0xFE +#define PALMTX_DEFAULT_INTENSITY 0x7E +#define PALMTX_LIMIT_MASK 0x7F +#define PALMTX_PRESCALER 0x3F +#define PALMTX_PERIOD_NS 3500 + +#endif -- cgit v1.2.3 From 00249adc0ebf9bc5e1b7b53dee37601fd7291396 Mon Sep 17 00:00:00 2001 From: Stefan Schmidt Date: Wed, 9 Jul 2008 08:05:42 +0100 Subject: [ARM] 5165/1: pxafb: More LCCR3 depth defines Add missing depth definitions to LCCR3. Signed-off-by: Daniel Ribeiro Acked-by: Eric Miao Signed-off-by: Russell King --- include/asm-arm/arch-pxa/regs-lcd.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/asm-arm/arch-pxa/regs-lcd.h b/include/asm-arm/arch-pxa/regs-lcd.h index f762493f5141..999b2a02ce21 100644 --- a/include/asm-arm/arch-pxa/regs-lcd.h +++ b/include/asm-arm/arch-pxa/regs-lcd.h @@ -24,6 +24,12 @@ #define LCCR3_4BPP (2 << 24) #define LCCR3_8BPP (3 << 24) #define LCCR3_16BPP (4 << 24) +#define LCCR3_18BPP (5 << 24) +#define LCCR3_18BPP_P (6 << 24) +#define LCCR3_19BPP (7 << 24) +#define LCCR3_19BPP_P (1 << 29) +#define LCCR3_24BPP ((1 << 29) | (1 << 24)) +#define LCCR3_25BPP ((1 << 29) | (2 << 24)) #define LCCR3_PDFOR_0 (0 << 30) #define LCCR3_PDFOR_1 (1 << 30) -- cgit v1.2.3 From c1450f156fda8921a55e3f4fe596274278010f31 Mon Sep 17 00:00:00 2001 From: Stefan Schmidt Date: Wed, 9 Jul 2008 08:06:32 +0100 Subject: [ARM] 5164/1: pxafb: Support for RGB666, RGBT666, RGB888 and RGBT888 Add the .depth field to pxafb_mode_info and use it to set pixel data format as 18(RGB666), 19(RGBT666), 24(RGB888) or 25(RGBT888) Signed-off-by: Daniel Ribeiro Acked-by: Eric Miao Signed-off-by: Russell King --- drivers/video/pxafb.c | 64 ++++++++++++++++++++++++++++++++++++++-- include/asm-arm/arch-pxa/pxafb.h | 3 +- 2 files changed, 63 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 3682bbd7e50e..295ff4e1955e 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -227,6 +227,22 @@ static int pxafb_bpp_to_lccr3(struct fb_var_screeninfo *var) case 4: ret = LCCR3_4BPP; break; case 8: ret = LCCR3_8BPP; break; case 16: ret = LCCR3_16BPP; break; + case 24: + switch (var->red.length + var->green.length + + var->blue.length + var->transp.length) { + case 18: ret = LCCR3_18BPP_P | LCCR3_PDFOR_3; break; + case 19: ret = LCCR3_19BPP_P; break; + } + break; + case 32: + switch (var->red.length + var->green.length + + var->blue.length + var->transp.length) { + case 18: ret = LCCR3_18BPP | LCCR3_PDFOR_3; break; + case 19: ret = LCCR3_19BPP; break; + case 24: ret = LCCR3_24BPP | LCCR3_PDFOR_3; break; + case 25: ret = LCCR3_25BPP; break; + } + break; } return ret; } @@ -345,6 +361,41 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) var->green.offset = 5; var->green.length = 6; var->blue.offset = 0; var->blue.length = 5; var->transp.offset = var->transp.length = 0; + } else if (var->bits_per_pixel > 16) { + struct pxafb_mode_info *mode; + + mode = pxafb_getmode(inf, var); + if (!mode) + return -EINVAL; + + switch (mode->depth) { + case 18: /* RGB666 */ + var->transp.offset = var->transp.length = 0; + var->red.offset = 12; var->red.length = 6; + var->green.offset = 6; var->green.length = 6; + var->blue.offset = 0; var->blue.length = 6; + break; + case 19: /* RGBT666 */ + var->transp.offset = 18; var->transp.length = 1; + var->red.offset = 12; var->red.length = 6; + var->green.offset = 6; var->green.length = 6; + var->blue.offset = 0; var->blue.length = 6; + break; + case 24: /* RGB888 */ + var->transp.offset = var->transp.length = 0; + var->red.offset = 16; var->red.length = 8; + var->green.offset = 8; var->green.length = 8; + var->blue.offset = 0; var->blue.length = 8; + break; + case 25: /* RGBT888 */ + var->transp.offset = 24; var->transp.length = 1; + var->red.offset = 16; var->red.length = 8; + var->green.offset = 8; var->green.length = 8; + var->blue.offset = 0; var->blue.length = 8; + break; + default: + return -EINVAL; + } } else { var->red.offset = var->green.offset = 0; var->blue.offset = var->transp.offset = 0; @@ -376,7 +427,7 @@ static int pxafb_set_par(struct fb_info *info) struct pxafb_info *fbi = (struct pxafb_info *)info; struct fb_var_screeninfo *var = &info->var; - if (var->bits_per_pixel == 16) + if (var->bits_per_pixel >= 16) fbi->fb.fix.visual = FB_VISUAL_TRUECOLOR; else if (!fbi->cmap_static) fbi->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR; @@ -391,7 +442,7 @@ static int pxafb_set_par(struct fb_info *info) fbi->fb.fix.line_length = var->xres_virtual * var->bits_per_pixel / 8; - if (var->bits_per_pixel == 16) + if (var->bits_per_pixel >= 16) fbi->palette_size = 0; else fbi->palette_size = var->bits_per_pixel == 1 ? @@ -404,7 +455,7 @@ static int pxafb_set_par(struct fb_info *info) */ pxafb_set_truecolor(fbi->fb.fix.visual == FB_VISUAL_TRUECOLOR); - if (fbi->fb.var.bits_per_pixel == 16) + if (fbi->fb.var.bits_per_pixel >= 16) fb_dealloc_cmap(&fbi->fb.cmap); else fb_alloc_cmap(&fbi->fb.cmap, 1<fb.var.bits_per_pixel, 0); @@ -831,6 +882,8 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, case 4: case 8: case 16: + case 24: + case 32: break; default: printk(KERN_ERR "%s: invalid bit depth %d\n", @@ -968,6 +1021,11 @@ static void pxafb_setup_gpio(struct pxafb_info *fbi) for (gpio = 58; ldd_bits; gpio++, ldd_bits--) pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT); + /* 18 bit interface */ + if (fbi->fb.var.bits_per_pixel > 16) { + pxa_gpio_mode(86 | GPIO_ALT_FN_2_OUT); + pxa_gpio_mode(87 | GPIO_ALT_FN_2_OUT); + } pxa_gpio_mode(GPIO74_LCD_FCLK_MD); pxa_gpio_mode(GPIO75_LCD_LCLK_MD); pxa_gpio_mode(GPIO76_LCD_PCLK_MD); diff --git a/include/asm-arm/arch-pxa/pxafb.h b/include/asm-arm/arch-pxa/pxafb.h index bbd22396841a..daf018d0c604 100644 --- a/include/asm-arm/arch-pxa/pxafb.h +++ b/include/asm-arm/arch-pxa/pxafb.h @@ -71,7 +71,8 @@ struct pxafb_mode_info { u_char bpp; u_int cmap_greyscale:1, - unused:31; + depth:8, + unused:23; /* Parallel Mode Timing */ u_char hsync_len; -- cgit v1.2.3 From 390d452fa1d912b6e76744a34777d7390ab1fa1c Mon Sep 17 00:00:00 2001 From: Stefan Schmidt Date: Wed, 9 Jul 2008 08:07:29 +0100 Subject: [ARM] 5163/1: pxa27x_udc: Allow choosing the bits in UP2OCR_SEOS Allow choosing the bits in UP2OCR_SEOS. Signed-off-by: Daniel Ribeiro Acked-by: Eric Miao Signed-off-by: Russell King --- include/asm-arm/arch-pxa/pxa27x-udc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-arm/arch-pxa/pxa27x-udc.h b/include/asm-arm/arch-pxa/pxa27x-udc.h index bc1cf7d0773a..ab1443f8bd89 100644 --- a/include/asm-arm/arch-pxa/pxa27x-udc.h +++ b/include/asm-arm/arch-pxa/pxa27x-udc.h @@ -97,7 +97,7 @@ #define UP2OCR_IDON (1 << 10) /* OTG ID Read Enable */ #define UP2OCR_HXS (1 << 16) /* Host Port 2 Transceiver Output Select */ #define UP2OCR_HXOE (1 << 17) /* Host Port 2 Transceiver Output Enable */ -#define UP2OCR_SEOS (1 << 24) /* Single-Ended Output Select */ +#define UP2OCR_SEOS(x) ((x & 7) << 24) /* Single-Ended Output Select */ #define UDCCSN(x) __REG2(0x40600100, (x) << 2) #define UDCCSR0 __REG(0x40600100) /* UDC Control/Status register - Endpoint 0 */ -- cgit v1.2.3 From 54b238469bce3a1b5012b2f0ebf261cf1c53e664 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 19 Jun 2008 03:11:49 +0100 Subject: [ARM] 5113/1: PXA SSP: Additional register definitions for PXA3xx SSP Also add some white space for a little clarity. Signed-off-by: Mark Brown Acked-by: Eric Miao Signed-off-by: Russell King --- include/asm-arm/arch-pxa/regs-ssp.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-arm/arch-pxa/regs-ssp.h b/include/asm-arm/arch-pxa/regs-ssp.h index 0255328c3c18..3c04cde2cf1f 100644 --- a/include/asm-arm/arch-pxa/regs-ssp.h +++ b/include/asm-arm/arch-pxa/regs-ssp.h @@ -20,6 +20,10 @@ #define SSTSS (0x38) /* SSP Timeslot Status */ #define SSACD (0x3C) /* SSP Audio Clock Divider */ +#if defined(CONFIG_PXA3xx) +#define SSACDD (0x40) /* SSP Audio Clock Dither Divider */ +#endif + /* Common PXA2xx bits first */ #define SSCR0_DSS (0x0000000f) /* Data Size Select (mask) */ #define SSCR0_DataSize(x) ((x) - 1) /* Data Size Select [4..16] */ @@ -29,10 +33,12 @@ #define SSCR0_National (0x2 << 4) /* National Microwire */ #define SSCR0_ECS (1 << 6) /* External clock select */ #define SSCR0_SSE (1 << 7) /* Synchronous Serial Port Enable */ + #if defined(CONFIG_PXA25x) #define SSCR0_SCR (0x0000ff00) /* Serial Clock Rate (mask) */ #define SSCR0_SerClkDiv(x) ((((x) - 2)/2) << 8) /* Divisor [2..512] */ -#elif defined(CONFIG_PXA27x) + +#elif defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) #define SSCR0_SCR (0x000fff00) /* Serial Clock Rate (mask) */ #define SSCR0_SerClkDiv(x) (((x) - 1) << 8) /* Divisor [1..4096] */ #define SSCR0_EDSS (1 << 20) /* Extended data size select */ @@ -45,6 +51,10 @@ #define SSCR0_MOD (1 << 31) /* Mode (normal or network) */ #endif +#if defined(CONFIG_PXA3xx) +#define SSCR0_FPCKE (1 << 29) /* FIFO packing enable */ +#endif + #define SSCR1_RIE (1 << 0) /* Receive FIFO Interrupt Enable */ #define SSCR1_TIE (1 << 1) /* Transmit FIFO Interrupt Enable */ #define SSCR1_LBM (1 << 2) /* Loop-Back Mode */ @@ -109,5 +119,9 @@ #define SSACD_SCDB (1 << 3) /* SSPSYSCLK Divider Bypass */ #define SSACD_ACPS(x) ((x) << 4) /* Audio clock PLL select */ #define SSACD_ACDS(x) ((x) << 0) /* Audio clock divider select */ +#if defined(CONFIG_PXA3xx) +#define SSACD_SCDX8 (1 << 7) /* SYSCLK division ratio select */ +#endif + #endif /* __ASM_ARCH_REGS_SSP_H */ -- cgit v1.2.3 From c316f101a10f2681618ffb537ecba6084d5a137e Mon Sep 17 00:00:00 2001 From: Ian Molton Date: Thu, 10 Jul 2008 20:01:07 +0100 Subject: E-series GPIO / IRQ definitions. --- include/asm-arm/arch-pxa/eseries-gpio.h | 50 +++++++++++++++++++++++++++++++++ include/asm-arm/arch-pxa/eseries-irq.h | 27 ++++++++++++++++++ 2 files changed, 77 insertions(+) create mode 100644 include/asm-arm/arch-pxa/eseries-gpio.h create mode 100644 include/asm-arm/arch-pxa/eseries-irq.h (limited to 'include') diff --git a/include/asm-arm/arch-pxa/eseries-gpio.h b/include/asm-arm/arch-pxa/eseries-gpio.h new file mode 100644 index 000000000000..4c90b1310270 --- /dev/null +++ b/include/asm-arm/arch-pxa/eseries-gpio.h @@ -0,0 +1,50 @@ +/* + * eseries-gpio.h + * + * Copyright (C) Ian Molton + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +/* e-series power button */ +#define GPIO_ESERIES_POWERBTN 0 + +/* UDC GPIO definitions */ +#define GPIO_E7XX_USB_DISC 13 +#define GPIO_E7XX_USB_PULLUP 3 + +#define GPIO_E800_USB_DISC 4 +#define GPIO_E800_USB_PULLUP 84 + +/* e740 PCMCIA GPIO definitions */ +/* Note: PWR1 seems to be inverted */ +#define GPIO_E740_PCMCIA_CD0 8 +#define GPIO_E740_PCMCIA_CD1 44 +#define GPIO_E740_PCMCIA_RDY0 11 +#define GPIO_E740_PCMCIA_RDY1 6 +#define GPIO_E740_PCMCIA_RST0 27 +#define GPIO_E740_PCMCIA_RST1 24 +#define GPIO_E740_PCMCIA_PWR0 20 +#define GPIO_E740_PCMCIA_PWR1 23 + +/* e750 PCMCIA GPIO definitions */ +#define GPIO_E750_PCMCIA_CD0 8 +#define GPIO_E750_PCMCIA_RDY0 12 +#define GPIO_E750_PCMCIA_RST0 27 +#define GPIO_E750_PCMCIA_PWR0 20 + +/* e800 PCMCIA GPIO definitions */ +#define GPIO_E800_PCMCIA_RST0 69 +#define GPIO_E800_PCMCIA_RST1 72 +#define GPIO_E800_PCMCIA_PWR0 20 +#define GPIO_E800_PCMCIA_PWR1 73 + +/* e7xx IrDA power control */ +#define GPIO_E7XX_IR_ON 38 + +/* ASIC related GPIOs */ +#define GPIO_ESERIES_TMIO_IRQ 5 +#define GPIO_E800_ANGELX_IRQ 8 diff --git a/include/asm-arm/arch-pxa/eseries-irq.h b/include/asm-arm/arch-pxa/eseries-irq.h new file mode 100644 index 000000000000..f2a93d5e31d3 --- /dev/null +++ b/include/asm-arm/arch-pxa/eseries-irq.h @@ -0,0 +1,27 @@ +/* + * eseries-irq.h + * + * Copyright (C) Ian Molton + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#define ANGELX_IRQ_BASE (IRQ_BOARD_START+8) +#define IRQ_ANGELX(n) (ANGELX_IRQ_BASE + (n)) + +#define ANGELX_RDY0_IRQ IRQ_ANGELX(0) +#define ANGELX_ST0_IRQ IRQ_ANGELX(1) +#define ANGELX_CD0_IRQ IRQ_ANGELX(2) +#define ANGELX_RDY1_IRQ IRQ_ANGELX(3) +#define ANGELX_ST1_IRQ IRQ_ANGELX(4) +#define ANGELX_CD1_IRQ IRQ_ANGELX(5) + +#define TMIO_IRQ_BASE (IRQ_BOARD_START+0) +#define IRQ_TMIO(n) (TMIO_IRQ_BASE + (n)) + +#define TMIO_SD_IRQ IRQ_TMIO(1) +#define TMIO_USB_IRQ IRQ_TMIO(2) + -- cgit v1.2.3 From 8fb105f5cc7f31ff37755945378a668f4c21590e Mon Sep 17 00:00:00 2001 From: Ian Molton Date: Wed, 25 Jun 2008 22:34:51 +0100 Subject: PXA UDC - allow use of inverted GPIO for pullup Signed-off-by: Ian Molton --- drivers/usb/gadget/pxa25x_udc.c | 6 ++++-- include/asm-arm/mach/udc_pxa2xx.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 031dceb93023..5d50031938ab 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -152,9 +152,10 @@ static int is_vbus_present(void) static void pullup_off(void) { struct pxa2xx_udc_mach_info *mach = the_controller->mach; + int off_level = mach->gpio_pullup_inverted; if (mach->gpio_pullup) - gpio_set_value(mach->gpio_pullup, 0); + gpio_set_value(mach->gpio_pullup, off_level); else if (mach->udc_command) mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); } @@ -162,9 +163,10 @@ static void pullup_off(void) static void pullup_on(void) { struct pxa2xx_udc_mach_info *mach = the_controller->mach; + int on_level = !mach->gpio_pullup_inverted; if (mach->gpio_pullup) - gpio_set_value(mach->gpio_pullup, 1); + gpio_set_value(mach->gpio_pullup, on_level); else if (mach->udc_command) mach->udc_command(PXA2XX_UDC_CMD_CONNECT); } diff --git a/include/asm-arm/mach/udc_pxa2xx.h b/include/asm-arm/mach/udc_pxa2xx.h index f9f3606986c2..9e5ed7c0f27f 100644 --- a/include/asm-arm/mach/udc_pxa2xx.h +++ b/include/asm-arm/mach/udc_pxa2xx.h @@ -23,6 +23,7 @@ struct pxa2xx_udc_mach_info { */ bool gpio_vbus_inverted; u16 gpio_vbus; /* high == vbus present */ + bool gpio_pullup_inverted; u16 gpio_pullup; /* high == pullup activated */ }; -- cgit v1.2.3 From 46a7fa270afbe5fddc6042a598cfe22977b0e989 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Fri, 11 Jul 2008 10:23:42 +0900 Subject: x86: make only GART code include gart.h gart.h has only GART-specific stuff. Only GART code needs it. Other IOMMU stuff should include iommu.h instead of gart.h. Signed-off-by: FUJITA Tomonori Acked-by: Muli Ben-Yehuda Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu.c | 2 +- arch/x86/kernel/amd_iommu_init.c | 2 +- arch/x86/kernel/aperture_64.c | 1 + arch/x86/kernel/early-quirks.c | 5 +---- arch/x86/kernel/pci-calgary_64.c | 2 +- arch/x86/kernel/pci-dma.c | 2 +- arch/x86/kernel/pci-gart_64.c | 1 + arch/x86/kernel/pci-nommu.c | 2 +- arch/x86/kernel/pci-swiotlb_64.c | 2 +- arch/x86/kernel/setup.c | 2 +- drivers/pci/intel-iommu.c | 2 +- include/asm-x86/gart.h | 1 - 12 files changed, 11 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index f2766d84c7a0..cf2f74bcde53 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -23,7 +23,7 @@ #include #include #include -#include +#include #include #include diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 2a13e430437d..66438284c699 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include /* * definitions for the ACPI scanning code diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 9f907806c1a5..44e21826db11 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index a4665f37cfc5..510b8e367732 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -16,10 +16,7 @@ #include #include #include - -#ifdef CONFIG_GART_IOMMU -#include -#endif +#include static void __init fix_hypertransport_config(int num, int slot, int func) { diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 6959b5c45df4..151f2d171f7c 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -36,7 +36,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 8467ec2320f1..f581a4b63b43 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -5,7 +5,7 @@ #include #include -#include +#include #include #include diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index d0d18db5d2a4..949ca985deb0 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c index aec43d56f49c..792b9179eff3 100644 --- a/arch/x86/kernel/pci-nommu.c +++ b/arch/x86/kernel/pci-nommu.c @@ -7,7 +7,7 @@ #include #include -#include +#include #include #include diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c index 82299cd1d04d..20df839b9c20 100644 --- a/arch/x86/kernel/pci-swiotlb_64.c +++ b/arch/x86/kernel/pci-swiotlb_64.c @@ -5,7 +5,7 @@ #include #include -#include +#include #include #include diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 86fc2d624270..e5d208934bfc 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -96,7 +96,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index bb0642318a95..7868065f6f2d 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -37,7 +37,7 @@ #include "intel-iommu.h" #include /* force_iommu in this header in x86-64*/ #include -#include +#include #include "pci.h" #define IS_GFX_DEVICE(pdev) ((pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY) diff --git a/include/asm-x86/gart.h b/include/asm-x86/gart.h index 33b9aeeb35a2..3f62a83887f3 100644 --- a/include/asm-x86/gart.h +++ b/include/asm-x86/gart.h @@ -2,7 +2,6 @@ #define _ASM_X8664_GART_H 1 #include -#include extern void set_up_gart_resume(u32, u32); -- cgit v1.2.3 From ac7ded2adb2e43152fe7385ddd53bf45f5c92285 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Fri, 11 Jul 2008 10:23:43 +0900 Subject: x86: remove ifdef CONFIG_GART_IOMMU in pci-dma.c Our way to handle gart_* functions for CONFIG_GART_IOMMU and !CONFIG_GART_IOMMU cases is inconsistent. We have some dummy gart_* functions in !CONFIG_GART_IOMMU case and also use ifdef CONFIG_GART_IOMMU tricks in pci-dma.c to call some gart_* functions in only CONFIG_GART_IOMMU case. This patch removes ifdef CONFIG_GART_IOMMU in pci-dma.c and always use dummy gart_* functions in iommu.h. Signed-off-by: FUJITA Tomonori Acked-by: Muli Ben-Yehuda Signed-off-by: Ingo Molnar --- arch/x86/kernel/pci-dma.c | 6 ------ include/asm-x86/iommu.h | 10 +++++++++- 2 files changed, 9 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index f581a4b63b43..dd57c5bbe2da 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -114,9 +114,7 @@ void __init pci_iommu_alloc(void) * The order of these functions is important for * fall-back/fail-over reasons */ -#ifdef CONFIG_GART_IOMMU gart_iommu_hole_init(); -#endif #ifdef CONFIG_CALGARY_IOMMU detect_calgary(); @@ -184,9 +182,7 @@ static __init int iommu_setup(char *p) swiotlb = 1; #endif -#ifdef CONFIG_GART_IOMMU gart_parse_options(p); -#endif #ifdef CONFIG_CALGARY_IOMMU if (!strncmp(p, "calgary", 7)) @@ -508,9 +504,7 @@ static int __init pci_iommu_init(void) amd_iommu_init(); -#ifdef CONFIG_GART_IOMMU gart_iommu_init(); -#endif no_iommu_init(); return 0; diff --git a/include/asm-x86/iommu.h b/include/asm-x86/iommu.h index 068c9a40aa5b..d63166fb3ab7 100644 --- a/include/asm-x86/iommu.h +++ b/include/asm-x86/iommu.h @@ -25,10 +25,18 @@ extern void gart_iommu_hole_init(void); static inline void early_gart_iommu_check(void) { } - +static inline void gart_iommu_init(void) +{ +} static inline void gart_iommu_shutdown(void) { } +static inline void gart_parse_options(char *options) +{ +} +static inline void gart_iommu_hole_init(void) +{ +} #endif #endif -- cgit v1.2.3 From be54f9d1c8df93c4998e134a306652caaa58f67f Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Fri, 11 Jul 2008 10:23:45 +0900 Subject: x86: remove ifdef CONFIG_SWIOTLB in pci-dma.c As other IOMMUs do, this puts dummy pci_swiotlb_init() in swiotlb.h and remove ifdef CONFIG_SWIOTLB in pci-dma.c. Signed-off-by: FUJITA Tomonori Acked-by: Muli Ben-Yehuda Signed-off-by: Ingo Molnar --- arch/x86/kernel/pci-dma.c | 2 -- include/asm-x86/swiotlb.h | 6 ++++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index f16cbbe424a1..d12945de0565 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -122,9 +122,7 @@ void __init pci_iommu_alloc(void) amd_iommu_detect(); -#ifdef CONFIG_SWIOTLB pci_swiotlb_init(); -#endif } #endif diff --git a/include/asm-x86/swiotlb.h b/include/asm-x86/swiotlb.h index f5d9e74b1e4a..c706a7442633 100644 --- a/include/asm-x86/swiotlb.h +++ b/include/asm-x86/swiotlb.h @@ -45,12 +45,14 @@ extern int swiotlb_force; #ifdef CONFIG_SWIOTLB extern int swiotlb; +extern void pci_swiotlb_init(void); #else #define swiotlb 0 +static inline void pci_swiotlb_init(void) +{ +} #endif -extern void pci_swiotlb_init(void); - static inline void dma_mark_clean(void *addr, size_t size) {} #endif /* _ASM_SWIOTLB_H */ -- cgit v1.2.3 From 0f420358e3a2abc028320ace7783e2e38cae77bf Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Fri, 11 Jul 2008 22:02:23 +1000 Subject: md: Turn rdev->sb_offset into a sector-based quantity. Rename it to sb_start to make sure all users have been converted. Signed-off-by: Andre Noll Signed-off-by: Neil Brown --- drivers/md/bitmap.c | 10 +++--- drivers/md/md.c | 81 ++++++++++++++++++++++------------------------- include/linux/raid/md_k.h | 2 +- 3 files changed, 44 insertions(+), 49 deletions(-) (limited to 'include') diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index dedba16d42f7..eba83e25b678 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -225,7 +225,7 @@ static struct page *read_sb_page(mddev_t *mddev, long offset, unsigned long inde || test_bit(Faulty, &rdev->flags)) continue; - target = (rdev->sb_offset << 1) + offset + index * (PAGE_SIZE/512); + target = rdev->sb_start + offset + index * (PAGE_SIZE/512); if (sync_page_io(rdev->bdev, target, PAGE_SIZE, page, READ)) { page->index = index; @@ -262,12 +262,12 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) /* bitmap runs in to metadata */ return -EINVAL; if (rdev->data_offset + mddev->size*2 - > rdev->sb_offset*2 + bitmap->offset) + > rdev->sb_start + bitmap->offset) /* data runs in to bitmap */ return -EINVAL; - } else if (rdev->sb_offset*2 < rdev->data_offset) { + } else if (rdev->sb_start < rdev->data_offset) { /* METADATA BITMAP DATA */ - if (rdev->sb_offset*2 + if (rdev->sb_start + bitmap->offset + page->index*(PAGE_SIZE/512) + size/512 > rdev->data_offset) @@ -277,7 +277,7 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) /* DATA METADATA BITMAP - no problems */ } md_super_write(mddev, rdev, - (rdev->sb_offset<<1) + bitmap->offset + rdev->sb_start + bitmap->offset + page->index * (PAGE_SIZE/512), size, page); diff --git a/drivers/md/md.c b/drivers/md/md.c index 3276edde7576..5590cb54b584 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -356,7 +356,7 @@ static inline sector_t calc_dev_sboffset(struct block_device *bdev) static sector_t calc_num_sectors(mdk_rdev_t *rdev, unsigned chunk_size) { - sector_t num_sectors = rdev->sb_offset * 2; + sector_t num_sectors = rdev->sb_start; if (chunk_size) num_sectors &= ~((sector_t)chunk_size/512 - 1); @@ -383,7 +383,7 @@ static void free_disk_sb(mdk_rdev_t * rdev) put_page(rdev->sb_page); rdev->sb_loaded = 0; rdev->sb_page = NULL; - rdev->sb_offset = 0; + rdev->sb_start = 0; rdev->size = 0; } } @@ -529,7 +529,7 @@ static int read_disk_sb(mdk_rdev_t * rdev, int size) return 0; - if (!sync_page_io(rdev->bdev, rdev->sb_offset<<1, size, rdev->sb_page, READ)) + if (!sync_page_io(rdev->bdev, rdev->sb_start, size, rdev->sb_page, READ)) goto fail; rdev->sb_loaded = 1; return 0; @@ -666,16 +666,14 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE]; mdp_super_t *sb; int ret; - sector_t sb_offset; /* - * Calculate the position of the superblock, + * Calculate the position of the superblock (512byte sectors), * it's at the end of the disk. * * It also happens to be a multiple of 4Kb. */ - sb_offset = calc_dev_sboffset(rdev->bdev) / 2; - rdev->sb_offset = sb_offset; + rdev->sb_start = calc_dev_sboffset(rdev->bdev); ret = read_disk_sb(rdev, MD_SB_BYTES); if (ret) return ret; @@ -1007,10 +1005,10 @@ super_90_rdev_size_change(mdk_rdev_t *rdev, unsigned long long size) size *= 2; /* convert to sectors */ if (rdev->mddev->bitmap_offset) return 0; /* can't move bitmap */ - rdev->sb_offset = calc_dev_sboffset(rdev->bdev) / 2; - if (!size || size > rdev->sb_offset*2) - size = rdev->sb_offset*2; - md_super_write(rdev->mddev, rdev, rdev->sb_offset << 1, rdev->sb_size, + rdev->sb_start = calc_dev_sboffset(rdev->bdev); + if (!size || size > rdev->sb_start) + size = rdev->sb_start; + md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size, rdev->sb_page); md_super_wait(rdev->mddev); return size/2; /* kB for sysfs */ @@ -1048,12 +1046,12 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) { struct mdp_superblock_1 *sb; int ret; - sector_t sb_offset; + sector_t sb_start; char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE]; int bmask; /* - * Calculate the position of the superblock. + * Calculate the position of the superblock in 512byte sectors. * It is always aligned to a 4K boundary and * depeding on minor_version, it can be: * 0: At least 8K, but less than 12K, from end of device @@ -1062,22 +1060,20 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) */ switch(minor_version) { case 0: - sb_offset = rdev->bdev->bd_inode->i_size >> 9; - sb_offset -= 8*2; - sb_offset &= ~(sector_t)(4*2-1); - /* convert from sectors to K */ - sb_offset /= 2; + sb_start = rdev->bdev->bd_inode->i_size >> 9; + sb_start -= 8*2; + sb_start &= ~(sector_t)(4*2-1); break; case 1: - sb_offset = 0; + sb_start = 0; break; case 2: - sb_offset = 4; + sb_start = 8; break; default: return -EINVAL; } - rdev->sb_offset = sb_offset; + rdev->sb_start = sb_start; /* superblock is rarely larger than 1K, but it can be larger, * and it is safe to read 4k, so we do that @@ -1091,7 +1087,7 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) if (sb->magic != cpu_to_le32(MD_SB_MAGIC) || sb->major_version != cpu_to_le32(1) || le32_to_cpu(sb->max_dev) > (4096-256)/2 || - le64_to_cpu(sb->super_offset) != (rdev->sb_offset<<1) || + le64_to_cpu(sb->super_offset) != rdev->sb_start || (le32_to_cpu(sb->feature_map) & ~MD_FEATURE_ALL) != 0) return -EINVAL; @@ -1127,7 +1123,7 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) rdev->sb_size = (rdev->sb_size | bmask) + 1; if (minor_version - && rdev->data_offset < sb_offset + (rdev->sb_size/512)) + && rdev->data_offset < sb_start + (rdev->sb_size/512)) return -EINVAL; if (sb->level == cpu_to_le32(LEVEL_MULTIPATH)) @@ -1163,7 +1159,7 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) if (minor_version) rdev->size = ((rdev->bdev->bd_inode->i_size>>9) - le64_to_cpu(sb->data_offset)) / 2; else - rdev->size = rdev->sb_offset; + rdev->size = rdev->sb_start / 2; if (rdev->size < le64_to_cpu(sb->data_size)/2) return -EINVAL; rdev->size = le64_to_cpu(sb->data_size)/2; @@ -1350,7 +1346,7 @@ super_1_rdev_size_change(mdk_rdev_t *rdev, unsigned long long size) if (size && size < rdev->mddev->size) return 0; /* component must fit device */ size *= 2; /* convert to sectors */ - if (rdev->sb_offset < rdev->data_offset/2) { + if (rdev->sb_start < rdev->data_offset) { /* minor versions 1 and 2; superblock before data */ max_size = (rdev->bdev->bd_inode->i_size >> 9); max_size -= rdev->data_offset; @@ -1361,19 +1357,19 @@ super_1_rdev_size_change(mdk_rdev_t *rdev, unsigned long long size) return 0; } else { /* minor version 0; superblock after data */ - sector_t sb_offset; - sb_offset = (rdev->bdev->bd_inode->i_size >> 9) - 8*2; - sb_offset &= ~(sector_t)(4*2 - 1); - max_size = rdev->size*2 + sb_offset - rdev->sb_offset*2; + sector_t sb_start; + sb_start = (rdev->bdev->bd_inode->i_size >> 9) - 8*2; + sb_start &= ~(sector_t)(4*2 - 1); + max_size = rdev->size*2 + sb_start - rdev->sb_start; if (!size || size > max_size) size = max_size; - rdev->sb_offset = sb_offset/2; + rdev->sb_start = sb_start; } sb = (struct mdp_superblock_1 *) page_address(rdev->sb_page); sb->data_size = cpu_to_le64(size); - sb->super_offset = rdev->sb_offset*2; + sb->super_offset = rdev->sb_start; sb->sb_csum = calc_sb_1_csum(sb); - md_super_write(rdev->mddev, rdev, rdev->sb_offset << 1, rdev->sb_size, + md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size, rdev->sb_page); md_super_wait(rdev->mddev); return size/2; /* kB for sysfs */ @@ -1810,11 +1806,11 @@ repeat: dprintk("%s ", bdevname(rdev->bdev,b)); if (!test_bit(Faulty, &rdev->flags)) { md_super_write(mddev,rdev, - rdev->sb_offset<<1, rdev->sb_size, + rdev->sb_start, rdev->sb_size, rdev->sb_page); dprintk(KERN_INFO "(write) %s's sb offset: %llu\n", bdevname(rdev->bdev,b), - (unsigned long long)rdev->sb_offset); + (unsigned long long)rdev->sb_start); rdev->sb_events = mddev->events; } else @@ -3577,16 +3573,16 @@ static int do_md_run(mddev_t * mddev) * We don't want the data to overlap the metadata, * Internal Bitmap issues has handled elsewhere. */ - if (rdev->data_offset < rdev->sb_offset) { + if (rdev->data_offset < rdev->sb_start) { if (mddev->size && rdev->data_offset + mddev->size*2 - > rdev->sb_offset*2) { + > rdev->sb_start) { printk("md: %s: data overlaps metadata\n", mdname(mddev)); return -EINVAL; } } else { - if (rdev->sb_offset*2 + rdev->sb_size/512 + if (rdev->sb_start + rdev->sb_size/512 > rdev->data_offset) { printk("md: %s: metadata overlaps data\n", mdname(mddev)); @@ -4355,9 +4351,9 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) if (!mddev->persistent) { printk(KERN_INFO "md: nonpersistent superblock ...\n"); - rdev->sb_offset = rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS; + rdev->sb_start = rdev->bdev->bd_inode->i_size / 512; } else - rdev->sb_offset = calc_dev_sboffset(rdev->bdev) / 2; + rdev->sb_start = calc_dev_sboffset(rdev->bdev); rdev->size = calc_num_sectors(rdev, mddev->chunk_size) / 2; err = bind_rdev_to_array(rdev, mddev); @@ -4424,10 +4420,9 @@ static int hot_add_disk(mddev_t * mddev, dev_t dev) } if (mddev->persistent) - rdev->sb_offset = calc_dev_sboffset(rdev->bdev) / 2; + rdev->sb_start = calc_dev_sboffset(rdev->bdev); else - rdev->sb_offset = - rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS; + rdev->sb_start = rdev->bdev->bd_inode->i_size / 512; rdev->size = calc_num_sectors(rdev, mddev->chunk_size) / 2; @@ -4628,7 +4623,7 @@ static int update_size(mddev_t *mddev, sector_t num_sectors) * linear and raid0 always use whatever space is available. We can only * consider changing this number if no resync or reconstruction is * happening, and if the new size is acceptable. It must fit before the - * sb_offset or, if that is Date: Fri, 11 Jul 2008 22:02:23 +1000 Subject: md: Remove some unused macros. Signed-off-by: Andre Noll Signed-off-by: Neil Brown --- include/linux/raid/md_p.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/raid/md_p.h b/include/linux/raid/md_p.h index 3f2cd98c508b..8b4de4a41ff1 100644 --- a/include/linux/raid/md_p.h +++ b/include/linux/raid/md_p.h @@ -43,14 +43,11 @@ */ #define MD_RESERVED_BYTES (64 * 1024) #define MD_RESERVED_SECTORS (MD_RESERVED_BYTES / 512) -#define MD_RESERVED_BLOCKS (MD_RESERVED_BYTES / BLOCK_SIZE) #define MD_NEW_SIZE_SECTORS(x) ((x & ~(MD_RESERVED_SECTORS - 1)) - MD_RESERVED_SECTORS) -#define MD_NEW_SIZE_BLOCKS(x) ((x & ~(MD_RESERVED_BLOCKS - 1)) - MD_RESERVED_BLOCKS) #define MD_SB_BYTES 4096 #define MD_SB_WORDS (MD_SB_BYTES / 4) -#define MD_SB_BLOCKS (MD_SB_BYTES / BLOCK_SIZE) #define MD_SB_SECTORS (MD_SB_BYTES / 512) /* -- cgit v1.2.3 From 5694703f14b1f6219fce42a27229b0c7d2c23edd Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 11 Jul 2008 17:14:20 +0200 Subject: x86, AMD IOMMU: add comments to amd_iommu_types.h Signed-off-by: Joerg Roedel Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar --- include/asm-x86/amd_iommu_types.h | 104 +++++++++++++++++++++++++++++++++++--- 1 file changed, 98 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h index 7bfcb47cc452..945fd498a3ad 100644 --- a/include/asm-x86/amd_iommu_types.h +++ b/include/asm-x86/amd_iommu_types.h @@ -158,78 +158,170 @@ #define MAX_DOMAIN_ID 65536 +/* + * This structure contains generic data for IOMMU protection domains + * independent of their use. + */ struct protection_domain { - spinlock_t lock; - u16 id; - int mode; - u64 *pt_root; - void *priv; + spinlock_t lock; /* mostly used to lock the page table*/ + u16 id; /* the domain id written to the device table */ + int mode; /* paging mode (0-6 levels) */ + u64 *pt_root; /* page table root pointer */ + void *priv; /* private data */ }; +/* + * Data container for a dma_ops specific protection domain + */ struct dma_ops_domain { struct list_head list; + + /* generic protection domain information */ struct protection_domain domain; + + /* size of the aperture for the mappings */ unsigned long aperture_size; + + /* address we start to search for free addresses */ unsigned long next_bit; + + /* address allocation bitmap */ unsigned long *bitmap; + + /* + * Array of PTE pages for the aperture. In this array we save all the + * leaf pages of the domain page table used for the aperture. This way + * we don't need to walk the page table to find a specific PTE. We can + * just calculate its address in constant time. + */ u64 **pte_pages; }; +/* + * Structure where we save information about one hardware AMD IOMMU in the + * system. + */ struct amd_iommu { struct list_head list; + + /* locks the accesses to the hardware */ spinlock_t lock; + /* device id of this IOMMU */ u16 devid; + /* + * Capability pointer. There could be more than one IOMMU per PCI + * device function if there are more than one AMD IOMMU capability + * pointers. + */ u16 cap_ptr; + /* physical address of MMIO space */ u64 mmio_phys; + /* virtual address of MMIO space */ u8 *mmio_base; + + /* capabilities of that IOMMU read from ACPI */ u32 cap; + + /* first device this IOMMU handles. read from PCI */ u16 first_device; + /* last device this IOMMU handles. read from PCI */ u16 last_device; + + /* start of exclusion range of that IOMMU */ u64 exclusion_start; + /* length of exclusion range of that IOMMU */ u64 exclusion_length; + /* command buffer virtual address */ u8 *cmd_buf; + /* size of command buffer */ u32 cmd_buf_size; + /* if one, we need to send a completion wait command */ int need_sync; + /* default dma_ops domain for that IOMMU */ struct dma_ops_domain *default_dom; }; +/* + * List with all IOMMUs in the system. This list is not locked because it is + * only written and read at driver initialization or suspend time + */ extern struct list_head amd_iommu_list; +/* + * Structure defining one entry in the device table + */ struct dev_table_entry { u32 data[8]; }; +/* + * One entry for unity mappings parsed out of the ACPI table. + */ struct unity_map_entry { struct list_head list; + + /* starting device id this entry is used for (including) */ u16 devid_start; + /* end device id this entry is used for (including) */ u16 devid_end; + + /* start address to unity map (including) */ u64 address_start; + /* end address to unity map (including) */ u64 address_end; + + /* required protection */ int prot; }; +/* + * List of all unity mappings. It is not locked because as runtime it is only + * read. It is created at ACPI table parsing time. + */ extern struct list_head amd_iommu_unity_map; -/* data structures for device handling */ +/* + * Data structures for device handling + */ + +/* + * Device table used by hardware. Read and write accesses by software are + * locked with the amd_iommu_pd_table lock. + */ extern struct dev_table_entry *amd_iommu_dev_table; + +/* + * Alias table to find requestor ids to device ids. Not locked because only + * read on runtime. + */ extern u16 *amd_iommu_alias_table; + +/* + * Reverse lookup table to find the IOMMU which translates a specific device. + */ extern struct amd_iommu **amd_iommu_rlookup_table; +/* size of the dma_ops aperture as power of 2 */ extern unsigned amd_iommu_aperture_order; +/* largest PCI device id we expect translation requests for */ extern u16 amd_iommu_last_bdf; /* data structures for protection domain handling */ extern struct protection_domain **amd_iommu_pd_table; + +/* allocation bitmap for domain ids */ extern unsigned long *amd_iommu_pd_alloc_bitmap; +/* will be 1 if device isolation is enabled */ extern int amd_iommu_isolate; +/* takes a PCI device id and prints it out in a readable form */ static inline void print_devid(u16 devid, int nl) { int bus = devid >> 8; -- cgit v1.2.3 From 8ea80d783efd0c50577ec8d69757ae54c408eacd Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 11 Jul 2008 17:14:23 +0200 Subject: x86, AMD IOMMU: replace HIGH_U32 macro with upper_32_bits function Removes a driver specific macro and replaces it with a generic function already available in Linux. Signed-off-by: Joerg Roedel Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu.c | 4 ++-- include/asm-x86/amd_iommu_types.h | 1 - 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 4bae96ca7c11..9098f047c1a9 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -109,7 +109,7 @@ static int iommu_completion_wait(struct amd_iommu *iommu) memset(&cmd, 0, sizeof(cmd)); cmd.data[0] = LOW_U32(ready_phys) | CMD_COMPL_WAIT_STORE_MASK; - cmd.data[1] = HIGH_U32(ready_phys); + cmd.data[1] = upper_32_bits(ready_phys); cmd.data[2] = 1; /* value written to 'ready' */ CMD_SET_TYPE(&cmd, CMD_COMPL_WAIT); @@ -157,7 +157,7 @@ static int iommu_queue_inv_iommu_pages(struct amd_iommu *iommu, CMD_SET_TYPE(&cmd, CMD_INV_IOMMU_PAGES); cmd.data[1] |= domid; cmd.data[2] = LOW_U32(address); - cmd.data[3] = HIGH_U32(address); + cmd.data[3] = upper_32_bits(address); if (s) /* size bit - we flush more than one 4kb page */ cmd.data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK; if (pde) /* PDE bit - we wan't flush everything not only the PTEs */ diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h index 945fd498a3ad..14aaffe38fe5 100644 --- a/include/asm-x86/amd_iommu_types.h +++ b/include/asm-x86/amd_iommu_types.h @@ -33,7 +33,6 @@ /* helper macros */ #define LOW_U32(x) ((x) & ((1ULL << 32)-1)) -#define HIGH_U32(x) (LOW_U32((x) >> 32)) /* Length of the MMIO region for the AMD IOMMU */ #define MMIO_REGION_LENGTH 0x4000 -- cgit v1.2.3 From 83f5aac18ccd02170f4a61e7289ceabd5101c1a0 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 11 Jul 2008 17:14:34 +0200 Subject: x86, AMD IOMMU: fix device table entry size A device table entry is actually only 256 *bits* large. Not 256 bytes. Signed-off-by: Joerg Roedel Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar --- include/asm-x86/amd_iommu_types.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h index 14aaffe38fe5..2e8601b0f006 100644 --- a/include/asm-x86/amd_iommu_types.h +++ b/include/asm-x86/amd_iommu_types.h @@ -27,7 +27,7 @@ /* * some size calculation constants */ -#define DEV_TABLE_ENTRY_SIZE 256 +#define DEV_TABLE_ENTRY_SIZE 32 #define ALIAS_TABLE_ENTRY_SIZE 2 #define RLOOKUP_TABLE_ENTRY_SIZE (sizeof(void *)) -- cgit v1.2.3 From d591b0a3ae25f587d0c4da1e1d1a425143590790 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 11 Jul 2008 17:14:35 +0200 Subject: x86, AMD IOMMU: replace DEVID macro with a function This patch replaces the DEVID macro with a function and uses them where apropriate (also in the core code). Signed-off-by: Joerg Roedel Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: robert.richter@amd.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu.c | 2 +- arch/x86/kernel/amd_iommu_init.c | 9 +++++---- include/asm-x86/amd_iommu_types.h | 7 +++++++ 3 files changed, 13 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index dec10e1a397c..8c3deb027d3a 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -664,7 +664,7 @@ static int get_device_resources(struct device *dev, BUG_ON(!dev || dev->bus != &pci_bus_type || !dev->dma_mask); pcidev = to_pci_dev(dev); - _bdf = (pcidev->bus->number << 8) | pcidev->devfn; + _bdf = calc_devid(pcidev->bus->number, pcidev->devfn); /* device not translated by any IOMMU in the system? */ if (_bdf >= amd_iommu_last_bdf) { diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index e0ff9404e6c9..9bf1b8111b08 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -30,7 +30,6 @@ /* * definitions for the ACPI scanning code */ -#define DEVID(bus, devfn) (((bus) << 8) | (devfn)) #define PCI_BUS(x) (((x) >> 8) & 0xff) #define IVRS_HEADER_LENGTH 48 @@ -295,7 +294,7 @@ static int __init find_last_devid_on_pci(int bus, int dev, int fn, int cap_ptr) u32 cap; cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET); - update_last_devid(DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap))); + update_last_devid(calc_devid(MMIO_GET_BUS(cap), MMIO_GET_LD(cap))); return 0; } @@ -494,8 +493,10 @@ static void __init init_iommu_from_pci(struct amd_iommu *iommu) iommu->cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_CAP_HDR_OFFSET); range = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET); - iommu->first_device = DEVID(MMIO_GET_BUS(range), MMIO_GET_FD(range)); - iommu->last_device = DEVID(MMIO_GET_BUS(range), MMIO_GET_LD(range)); + iommu->first_device = calc_devid(MMIO_GET_BUS(range), + MMIO_GET_FD(range)); + iommu->last_device = calc_devid(MMIO_GET_BUS(range), + MMIO_GET_LD(range)); } /* diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h index 2e8601b0f006..22aa58ca1991 100644 --- a/include/asm-x86/amd_iommu_types.h +++ b/include/asm-x86/amd_iommu_types.h @@ -332,4 +332,11 @@ static inline void print_devid(u16 devid, int nl) printk("\n"); } +/* takes bus and device/function and returns the device id + * FIXME: should that be in generic PCI code? */ +static inline u16 calc_devid(u8 bus, u8 devfn) +{ + return (((u16)bus) << 8) | devfn; +} + #endif -- cgit v1.2.3 From d280eadc4fba0bf99fb1c3b60e8c5e007f7da02c Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Fri, 6 Jun 2008 17:13:02 +0800 Subject: [NET] smc91x: remove "irq_flags" from "struct smc91x_platdata" IRQ trigger type can be specified in the IRQ resource definition by IORESOURCE_IRQ_*, we need only one way to specify this. This also fixes the following small issue: To allow dynamic support for multiple platforms, when those relevant macros are not defined for one specific platform, the default case will be: - SMC_DYNAMIC_BUS_CONFIG defined - and SMC_IRQ_FLAGS = IRQF_TRIGGER_RISING While if "irq_flags" is missing when defining the smc91x_platdata, usually as follows: static struct smc91x_platdata xxxx_smc91x_data = { .flags = SMC91X_USE_XXBIT, }; The lp->cfg.irq_flags will always be overriden by the above structure (due to a memcpy), thus rendering lp->cfg.irq_flags to be "0" always. (regardless of the default SMC_IRQ_FLAGS or IORESOURCE_IRQ_* flags) Fixes this by forcing to use IORESOURCE_IRQ_* flags if present, and make the only user of smc91x_platdata.irq_flags (renesas/migor) to use IORESOURCE_IRQ_*. Signed-off-by: Eric Miao Acked-by: Nicolas Pitre Acked-by: Jeff Garzik Signed-off-by: Russell King --- arch/sh/boards/renesas/migor/setup.c | 3 +-- drivers/net/smc91x.c | 9 +++++---- include/linux/smc91x.h | 1 - 3 files changed, 6 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/sh/boards/renesas/migor/setup.c b/arch/sh/boards/renesas/migor/setup.c index 01af44245b57..963c99322095 100644 --- a/arch/sh/boards/renesas/migor/setup.c +++ b/arch/sh/boards/renesas/migor/setup.c @@ -30,7 +30,6 @@ static struct smc91x_platdata smc91x_info = { .flags = SMC91X_USE_16BIT, - .irq_flags = IRQF_TRIGGER_HIGH, }; static struct resource smc91x_eth_resources[] = { @@ -42,7 +41,7 @@ static struct resource smc91x_eth_resources[] = { }, [1] = { .start = 32, /* IRQ0 */ - .flags = IORESOURCE_IRQ, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, }, }; diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index f2051b209da2..e4a6c361995a 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -2123,6 +2123,7 @@ static int smc_drv_probe(struct platform_device *pdev) struct net_device *ndev; struct resource *res, *ires; unsigned int __iomem *addr; + unsigned long irq_flags = SMC_IRQ_FLAGS; int ret; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs"); @@ -2152,7 +2153,6 @@ static int smc_drv_probe(struct platform_device *pdev) */ lp = netdev_priv(ndev); - lp->cfg.irq_flags = SMC_IRQ_FLAGS; #ifdef SMC_DYNAMIC_BUS_CONFIG if (pd) @@ -2177,8 +2177,9 @@ static int smc_drv_probe(struct platform_device *pdev) } ndev->irq = ires->start; - if (SMC_IRQ_FLAGS == -1) - lp->cfg.irq_flags = ires->flags & IRQF_TRIGGER_MASK; + + if (ires->flags & IRQF_TRIGGER_MASK) + irq_flags = ires->flags & IRQF_TRIGGER_MASK; ret = smc_request_attrib(pdev); if (ret) @@ -2205,7 +2206,7 @@ static int smc_drv_probe(struct platform_device *pdev) } #endif - ret = smc_probe(ndev, addr, lp->cfg.irq_flags); + ret = smc_probe(ndev, addr, irq_flags); if (ret != 0) goto out_iounmap; diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h index 8e0556b8781c..fc7682f04d89 100644 --- a/include/linux/smc91x.h +++ b/include/linux/smc91x.h @@ -7,7 +7,6 @@ struct smc91x_platdata { unsigned long flags; - unsigned long irq_flags; /* IRQF_... */ }; #endif /* __SMC91X_H__ */ -- cgit v1.2.3 From c4f0e76747e80578a8f7fddd82fd0ce8127bd2f8 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Thu, 19 Jun 2008 17:39:03 +0800 Subject: [NET] smc91x: add SMC91X_NOWAIT flag to platform data And also favors the usage of SMC91X_NOWAIT over the hardcoded SMC_NOWAIT by converting "nowait" (module parameter overridable) to platform flag. There are several possibilities: 1. platform data present - preferred and use as is 2. platform data absent - use "nowait", it can be: a. SMC_NOWAIT if defined b. default to 0 if SMC_NOWAIT isn't defined c. overriden by module parameter Signed-off-by: Eric Miao Acked-by: Nicolas Pitre Acked-by: Jeff Garzik Signed-off-by: Russell King --- drivers/net/smc91x.c | 3 ++- include/linux/smc91x.h | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index 1b19022b6c7c..de7a913c487c 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -308,7 +308,7 @@ static void smc_reset(struct net_device *dev) * can't handle it then there will be no recovery except for * a hard reset or power cycle */ - if (nowait) + if (lp->cfg.flags & SMC91X_NOWAIT) cfg |= CONFIG_NO_WAIT; /* @@ -2160,6 +2160,7 @@ static int smc_drv_probe(struct platform_device *pdev) lp->cfg.flags |= (SMC_CAN_USE_8BIT) ? SMC91X_USE_8BIT : 0; lp->cfg.flags |= (SMC_CAN_USE_16BIT) ? SMC91X_USE_16BIT : 0; lp->cfg.flags |= (SMC_CAN_USE_32BIT) ? SMC91X_USE_32BIT : 0; + lp->cfg.flags |= (nowait) ? SMC91X_NOWAIT : 0; } ndev->dma = (unsigned char)-1; diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h index fc7682f04d89..90434db72db2 100644 --- a/include/linux/smc91x.h +++ b/include/linux/smc91x.h @@ -5,6 +5,8 @@ #define SMC91X_USE_16BIT (1 << 1) #define SMC91X_USE_32BIT (1 << 2) +#define SMC91X_NOWAIT (1 << 3) + struct smc91x_platdata { unsigned long flags; }; -- cgit v1.2.3 From 159198862adad7109bb347bb30a620f67beac45f Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Tue, 24 Jun 2008 13:38:50 +0800 Subject: [NET] smc91x: prepare for SMC_IO_SHIFT to be a platform configurable variable Now one can use the following code #define SMC_IO_SHIFT lp->io_shift to make SMC_IO_SHIFT a variable. This, however, will slightly increase the CPU overhead and have negative impact on the network performance. The tradeoff is, this can be specified in the smc91x platform data so that multiple boards support can be built in a single zImage. Signed-off-by: Eric Miao Acked-by: Nicolas Pitre Acked-by: Jeff Garzik Signed-off-by: Russell King --- drivers/net/smc91x.c | 57 +++++++++++++++++++++++++++----------------------- drivers/net/smc91x.h | 3 +++ include/linux/smc91x.h | 7 +++++++ 3 files changed, 41 insertions(+), 26 deletions(-) (limited to 'include') diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index de7a913c487c..34bfc60e8074 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -2050,9 +2050,11 @@ static int smc_enable_device(struct platform_device *pdev) return 0; } -static int smc_request_attrib(struct platform_device *pdev) +static int smc_request_attrib(struct platform_device *pdev, + struct net_device *ndev) { struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib"); + struct smc_local *lp = netdev_priv(ndev); if (!res) return 0; @@ -2063,9 +2065,11 @@ static int smc_request_attrib(struct platform_device *pdev) return 0; } -static void smc_release_attrib(struct platform_device *pdev) +static void smc_release_attrib(struct platform_device *pdev, + struct net_device *ndev) { struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib"); + struct smc_local *lp = netdev_priv(ndev); if (res) release_mem_region(res->start, ATTRIB_SIZE); @@ -2126,25 +2130,11 @@ static int smc_drv_probe(struct platform_device *pdev) unsigned long irq_flags = SMC_IRQ_FLAGS; int ret; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs"); - if (!res) - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - ret = -ENODEV; - goto out; - } - - - if (!request_mem_region(res->start, SMC_IO_EXTENT, CARDNAME)) { - ret = -EBUSY; - goto out; - } - ndev = alloc_etherdev(sizeof(struct smc_local)); if (!ndev) { printk("%s: could not allocate device.\n", CARDNAME); ret = -ENOMEM; - goto out_release_io; + goto out; } SET_NETDEV_DEV(ndev, &pdev->dev); @@ -2154,9 +2144,10 @@ static int smc_drv_probe(struct platform_device *pdev) lp = netdev_priv(ndev); - if (pd) + if (pd) { memcpy(&lp->cfg, pd, sizeof(lp->cfg)); - else { + lp->io_shift = SMC91X_IO_SHIFT(lp->cfg.flags); + } else { lp->cfg.flags |= (SMC_CAN_USE_8BIT) ? SMC91X_USE_8BIT : 0; lp->cfg.flags |= (SMC_CAN_USE_16BIT) ? SMC91X_USE_16BIT : 0; lp->cfg.flags |= (SMC_CAN_USE_32BIT) ? SMC91X_USE_32BIT : 0; @@ -2165,10 +2156,24 @@ static int smc_drv_probe(struct platform_device *pdev) ndev->dma = (unsigned char)-1; + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs"); + if (!res) + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + ret = -ENODEV; + goto out_free_netdev; + } + + + if (!request_mem_region(res->start, SMC_IO_EXTENT, CARDNAME)) { + ret = -EBUSY; + goto out_free_netdev; + } + ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!ires) { ret = -ENODEV; - goto out_free_netdev; + goto out_release_io; } ndev->irq = ires->start; @@ -2176,9 +2181,9 @@ static int smc_drv_probe(struct platform_device *pdev) if (ires->flags & IRQF_TRIGGER_MASK) irq_flags = ires->flags & IRQF_TRIGGER_MASK; - ret = smc_request_attrib(pdev); + ret = smc_request_attrib(pdev, ndev); if (ret) - goto out_free_netdev; + goto out_release_io; #if defined(CONFIG_SA1100_ASSABET) NCR_0 |= NCR_ENET_OSC_EN; #endif @@ -2213,11 +2218,11 @@ static int smc_drv_probe(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); iounmap(addr); out_release_attrib: - smc_release_attrib(pdev); - out_free_netdev: - free_netdev(ndev); + smc_release_attrib(pdev, ndev); out_release_io: release_mem_region(res->start, SMC_IO_EXTENT); + out_free_netdev: + free_netdev(ndev); out: printk("%s: not found (%d).\n", CARDNAME, ret); @@ -2243,7 +2248,7 @@ static int smc_drv_remove(struct platform_device *pdev) iounmap(lp->base); smc_release_datacs(pdev,ndev); - smc_release_attrib(pdev); + smc_release_attrib(pdev,ndev); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs"); if (!res) diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index 8310f1a073d8..80fb80f39200 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h @@ -500,6 +500,9 @@ struct smc_local { void __iomem *base; void __iomem *datacs; + /* the low address lines on some platforms aren't connected... */ + int io_shift; + struct smc91x_platdata cfg; }; diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h index 90434db72db2..0dea9459a8e4 100644 --- a/include/linux/smc91x.h +++ b/include/linux/smc91x.h @@ -7,6 +7,13 @@ #define SMC91X_NOWAIT (1 << 3) +/* two bits for IO_SHIFT, let's hope later designs will keep this sane */ +#define SMC91X_IO_SHIFT_0 (0 << 4) +#define SMC91X_IO_SHIFT_1 (1 << 4) +#define SMC91X_IO_SHIFT_2 (2 << 4) +#define SMC91X_IO_SHIFT_3 (3 << 4) +#define SMC91X_IO_SHIFT(x) (((x) >> 4) & 0x3) + struct smc91x_platdata { unsigned long flags; }; -- cgit v1.2.3 From 52256c0e06e4a4df67134b951a21b50c713a9588 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Tue, 24 Jun 2008 15:36:05 +0800 Subject: [NET] smc91x: prepare SMC_USE_PXA_DMA to be specified in platform data Now that the original SMC_USE_PXA_DMA specific code will always being built if CONFIG_ARCH_PXA is defined, so to make this part of the code to be PXA public, and still prevent it from being built if support of PXA is not selected. A SMC91X_USE_DMA flag is added to the platform data to allow platform to choose its usage of DMA. Note this flag itself is so named to be generic enough (assuming other platforms can also use DMA). It keeps backward compatibility to set the SMC91X_USE_DMA flag if SMC_USE_PXA_DMA is still defined. Signed-off-by: Eric Miao Acked-by: Nicolas Pitre Acked-by: Jeff Garzik Signed-off-by: Russell King --- drivers/net/smc91x.c | 13 ++++++++----- drivers/net/smc91x.h | 6 +++--- include/linux/smc91x.h | 2 ++ 3 files changed, 13 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index 34bfc60e8074..2040965d7724 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -1939,8 +1939,11 @@ static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr, if (retval) goto err_out; -#ifdef SMC_USE_PXA_DMA - { +#ifdef CONFIG_ARCH_PXA +# ifdef SMC_USE_PXA_DMA + lp->cfg.flags |= SMC91X_USE_DMA; +# endif + if (lp->cfg.flags & SMC91X_USE_DMA) { int dma = pxa_request_dma(dev->name, DMA_PRIO_LOW, smc_pxa_dma_irq, NULL); if (dma >= 0) @@ -1980,7 +1983,7 @@ static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr, } err_out: -#ifdef SMC_USE_PXA_DMA +#ifdef CONFIG_ARCH_PXA if (retval && dev->dma != (unsigned char)-1) pxa_free_dma(dev->dma); #endif @@ -2198,7 +2201,7 @@ static int smc_drv_probe(struct platform_device *pdev) goto out_release_attrib; } -#ifdef SMC_USE_PXA_DMA +#ifdef CONFIG_ARCH_PXA { struct smc_local *lp = netdev_priv(ndev); lp->device = &pdev->dev; @@ -2241,7 +2244,7 @@ static int smc_drv_remove(struct platform_device *pdev) free_irq(ndev->irq, ndev); -#ifdef SMC_USE_PXA_DMA +#ifdef CONFIG_ARCH_PXA if (ndev->dma != (unsigned char)-1) pxa_free_dma(ndev->dma); #endif diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index 80fb80f39200..f02cc6ac248b 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h @@ -492,7 +492,7 @@ struct smc_local { spinlock_t lock; -#ifdef SMC_USE_PXA_DMA +#ifdef CONFIG_ARCH_PXA /* DMA needs the physical address of the chip */ u_long physaddr; struct device *device; @@ -510,7 +510,7 @@ struct smc_local { #define SMC_16BIT(p) ((p)->cfg.flags & SMC91X_USE_16BIT) #define SMC_32BIT(p) ((p)->cfg.flags & SMC91X_USE_32BIT) -#ifdef SMC_USE_PXA_DMA +#ifdef CONFIG_ARCH_PXA /* * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is * always happening in irq context so no need to worry about races. TX is @@ -604,7 +604,7 @@ smc_pxa_dma_irq(int dma, void *dummy) { DCSR(dma) = 0; } -#endif /* SMC_USE_PXA_DMA */ +#endif /* CONFIG_ARCH_PXA */ /* diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h index 0dea9459a8e4..3827b922ba1f 100644 --- a/include/linux/smc91x.h +++ b/include/linux/smc91x.h @@ -14,6 +14,8 @@ #define SMC91X_IO_SHIFT_3 (3 << 4) #define SMC91X_IO_SHIFT(x) (((x) >> 4) & 0x3) +#define SMC91X_USE_DMA (1 << 6) + struct smc91x_platdata { unsigned long flags; }; -- cgit v1.2.3 From 5d31e43589589e63f5b96abc62372d2ef331c14a Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Fri, 11 Jul 2008 12:45:39 +0800 Subject: [ARM] pxa: add base support for PXA930 (aka Tavor-P) Signed-off-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/Kconfig | 3 + arch/arm/mach-pxa/Makefile | 1 + arch/arm/mach-pxa/pxa930.c | 190 +++++++++++++ include/asm-arm/arch-pxa/hardware.h | 16 ++ include/asm-arm/arch-pxa/mfp-pxa930.h | 491 ++++++++++++++++++++++++++++++++++ include/asm-arm/arch-pxa/mfp.h | 8 + 6 files changed, 709 insertions(+) create mode 100644 arch/arm/mach-pxa/pxa930.c create mode 100644 include/asm-arm/arch-pxa/mfp-pxa930.h (limited to 'include') diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 3e28521b9ebc..d64b40c8e422 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -16,6 +16,9 @@ config CPU_PXA310 config CPU_PXA320 bool "PXA320 (codename Monahans-P)" +config CPU_PXA930 + bool "PXA930 (codename Tavor-P)" + endmenu endif diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 5220a5c3fe90..d04014e67c08 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_PXA27x) += mfp-pxa2xx.o pxa2xx.o pxa27x.o obj-$(CONFIG_PXA3xx) += mfp-pxa3xx.o pxa3xx.o smemc.o obj-$(CONFIG_CPU_PXA300) += pxa300.o obj-$(CONFIG_CPU_PXA320) += pxa320.o +obj-$(CONFIG_CPU_PXA930) += pxa930.o # Specific board support obj-$(CONFIG_ARCH_GUMSTIX) += gumstix.o diff --git a/arch/arm/mach-pxa/pxa930.c b/arch/arm/mach-pxa/pxa930.c new file mode 100644 index 000000000000..9503897d049c --- /dev/null +++ b/arch/arm/mach-pxa/pxa930.c @@ -0,0 +1,190 @@ +/* + * linux/arch/arm/mach-pxa/pxa930.c + * + * Code specific to PXA930 + * + * Copyright (C) 2007-2008 Marvell Internation Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include + +#include +#include + +static struct pxa3xx_mfp_addr_map pxa930_mfp_addr_map[] __initdata = { + + MFP_ADDR(GPIO0, 0x02e0), + MFP_ADDR(GPIO1, 0x02dc), + MFP_ADDR(GPIO2, 0x02e8), + MFP_ADDR(GPIO3, 0x02d8), + MFP_ADDR(GPIO4, 0x02e4), + MFP_ADDR(GPIO5, 0x02ec), + MFP_ADDR(GPIO6, 0x02f8), + MFP_ADDR(GPIO7, 0x02fc), + MFP_ADDR(GPIO8, 0x0300), + MFP_ADDR(GPIO9, 0x02d4), + MFP_ADDR(GPIO10, 0x02f4), + MFP_ADDR(GPIO11, 0x02f0), + MFP_ADDR(GPIO12, 0x0304), + MFP_ADDR(GPIO13, 0x0310), + MFP_ADDR(GPIO14, 0x0308), + MFP_ADDR(GPIO15, 0x030c), + MFP_ADDR(GPIO16, 0x04e8), + MFP_ADDR(GPIO17, 0x04f4), + MFP_ADDR(GPIO18, 0x04f8), + MFP_ADDR(GPIO19, 0x04fc), + MFP_ADDR(GPIO20, 0x0518), + MFP_ADDR(GPIO21, 0x051c), + MFP_ADDR(GPIO22, 0x04ec), + MFP_ADDR(GPIO23, 0x0500), + MFP_ADDR(GPIO24, 0x04f0), + MFP_ADDR(GPIO25, 0x0504), + MFP_ADDR(GPIO26, 0x0510), + MFP_ADDR(GPIO27, 0x0514), + MFP_ADDR(GPIO28, 0x0520), + MFP_ADDR(GPIO29, 0x0600), + MFP_ADDR(GPIO30, 0x0618), + MFP_ADDR(GPIO31, 0x0610), + MFP_ADDR(GPIO32, 0x060c), + MFP_ADDR(GPIO33, 0x061c), + MFP_ADDR(GPIO34, 0x0620), + MFP_ADDR(GPIO35, 0x0628), + MFP_ADDR(GPIO36, 0x062c), + MFP_ADDR(GPIO37, 0x0630), + MFP_ADDR(GPIO38, 0x0634), + MFP_ADDR(GPIO39, 0x0638), + MFP_ADDR(GPIO40, 0x063c), + MFP_ADDR(GPIO41, 0x0614), + MFP_ADDR(GPIO42, 0x0624), + MFP_ADDR(GPIO43, 0x0608), + MFP_ADDR(GPIO44, 0x0604), + MFP_ADDR(GPIO45, 0x050c), + MFP_ADDR(GPIO46, 0x0508), + MFP_ADDR(GPIO47, 0x02bc), + MFP_ADDR(GPIO48, 0x02b4), + MFP_ADDR(GPIO49, 0x02b8), + MFP_ADDR(GPIO50, 0x02c8), + MFP_ADDR(GPIO51, 0x02c0), + MFP_ADDR(GPIO52, 0x02c4), + MFP_ADDR(GPIO53, 0x02d0), + MFP_ADDR(GPIO54, 0x02cc), + MFP_ADDR(GPIO55, 0x029c), + MFP_ADDR(GPIO56, 0x02a0), + MFP_ADDR(GPIO57, 0x0294), + MFP_ADDR(GPIO58, 0x0298), + MFP_ADDR(GPIO59, 0x02a4), + MFP_ADDR(GPIO60, 0x02a8), + MFP_ADDR(GPIO61, 0x02b0), + MFP_ADDR(GPIO62, 0x02ac), + MFP_ADDR(GPIO63, 0x0640), + MFP_ADDR(GPIO64, 0x065c), + MFP_ADDR(GPIO65, 0x0648), + MFP_ADDR(GPIO66, 0x0644), + MFP_ADDR(GPIO67, 0x0674), + MFP_ADDR(GPIO68, 0x0658), + MFP_ADDR(GPIO69, 0x0654), + MFP_ADDR(GPIO70, 0x0660), + MFP_ADDR(GPIO71, 0x0668), + MFP_ADDR(GPIO72, 0x0664), + MFP_ADDR(GPIO73, 0x0650), + MFP_ADDR(GPIO74, 0x066c), + MFP_ADDR(GPIO75, 0x064c), + MFP_ADDR(GPIO76, 0x0670), + MFP_ADDR(GPIO77, 0x0678), + MFP_ADDR(GPIO78, 0x067c), + MFP_ADDR(GPIO79, 0x0694), + MFP_ADDR(GPIO80, 0x069c), + MFP_ADDR(GPIO81, 0x06a0), + MFP_ADDR(GPIO82, 0x06a4), + MFP_ADDR(GPIO83, 0x0698), + MFP_ADDR(GPIO84, 0x06bc), + MFP_ADDR(GPIO85, 0x06b4), + MFP_ADDR(GPIO86, 0x06b0), + MFP_ADDR(GPIO87, 0x06c0), + MFP_ADDR(GPIO88, 0x06c4), + MFP_ADDR(GPIO89, 0x06ac), + MFP_ADDR(GPIO90, 0x0680), + MFP_ADDR(GPIO91, 0x0684), + MFP_ADDR(GPIO92, 0x0688), + MFP_ADDR(GPIO93, 0x0690), + MFP_ADDR(GPIO94, 0x068c), + MFP_ADDR(GPIO95, 0x06a8), + MFP_ADDR(GPIO96, 0x06b8), + MFP_ADDR(GPIO97, 0x0410), + MFP_ADDR(GPIO98, 0x0418), + MFP_ADDR(GPIO99, 0x041c), + MFP_ADDR(GPIO100, 0x0414), + MFP_ADDR(GPIO101, 0x0408), + MFP_ADDR(GPIO102, 0x0324), + MFP_ADDR(GPIO103, 0x040c), + MFP_ADDR(GPIO104, 0x0400), + MFP_ADDR(GPIO105, 0x0328), + MFP_ADDR(GPIO106, 0x0404), + + MFP_ADDR(nXCVREN, 0x0204), + MFP_ADDR(DF_CLE_nOE, 0x020c), + MFP_ADDR(DF_nADV1_ALE, 0x0218), + MFP_ADDR(DF_SCLK_E, 0x0214), + MFP_ADDR(DF_SCLK_S, 0x0210), + MFP_ADDR(nBE0, 0x021c), + MFP_ADDR(nBE1, 0x0220), + MFP_ADDR(DF_nADV2_ALE, 0x0224), + MFP_ADDR(DF_INT_RnB, 0x0228), + MFP_ADDR(DF_nCS0, 0x022c), + MFP_ADDR(DF_nCS1, 0x0230), + MFP_ADDR(nLUA, 0x0254), + MFP_ADDR(nLLA, 0x0258), + MFP_ADDR(DF_nWE, 0x0234), + MFP_ADDR(DF_nRE_nOE, 0x0238), + MFP_ADDR(DF_ADDR0, 0x024c), + MFP_ADDR(DF_ADDR1, 0x0250), + MFP_ADDR(DF_ADDR2, 0x025c), + MFP_ADDR(DF_ADDR3, 0x0260), + MFP_ADDR(DF_IO0, 0x023c), + MFP_ADDR(DF_IO1, 0x0240), + MFP_ADDR(DF_IO2, 0x0244), + MFP_ADDR(DF_IO3, 0x0248), + MFP_ADDR(DF_IO4, 0x0264), + MFP_ADDR(DF_IO5, 0x0268), + MFP_ADDR(DF_IO6, 0x026c), + MFP_ADDR(DF_IO7, 0x0270), + MFP_ADDR(DF_IO8, 0x0274), + MFP_ADDR(DF_IO9, 0x0278), + MFP_ADDR(DF_IO10, 0x027c), + MFP_ADDR(DF_IO11, 0x0280), + MFP_ADDR(DF_IO12, 0x0284), + MFP_ADDR(DF_IO13, 0x0288), + MFP_ADDR(DF_IO14, 0x028c), + MFP_ADDR(DF_IO15, 0x0290), + + MFP_ADDR(GSIM_UIO, 0x0314), + MFP_ADDR(GSIM_UCLK, 0x0318), + MFP_ADDR(GSIM_UDET, 0x031c), + MFP_ADDR(GSIM_nURST, 0x0320), + + MFP_ADDR(PMIC_INT, 0x06c8), + + MFP_ADDR(RDY, 0x0200), + + MFP_ADDR_END, +}; + +static int __init pxa930_init(void) +{ + if (cpu_is_pxa930()) { + pxa3xx_init_mfp(); + pxa3xx_mfp_init_addr(pxa930_mfp_addr_map); + } + + return 0; +} + +core_initcall(pxa930_init); diff --git a/include/asm-arm/arch-pxa/hardware.h b/include/asm-arm/arch-pxa/hardware.h index 09868de841a5..979a45695d7d 100644 --- a/include/asm-arm/arch-pxa/hardware.h +++ b/include/asm-arm/arch-pxa/hardware.h @@ -126,6 +126,16 @@ #define __cpu_is_pxa320(id) (0) #endif +#ifdef CONFIG_CPU_PXA930 +#define __cpu_is_pxa930(id) \ + ({ \ + unsigned int _id = (id) >> 4 & 0xfff; \ + _id == 0x683; \ + }) +#else +#define __cpu_is_pxa930(id) (0) +#endif + #define cpu_is_pxa21x() \ ({ \ __cpu_is_pxa21x(read_cpuid_id()); \ @@ -161,6 +171,12 @@ __cpu_is_pxa320(read_cpuid_id()); \ }) +#define cpu_is_pxa930() \ + ({ \ + unsigned int id = read_cpuid(CPUID_ID); \ + __cpu_is_pxa930(id); \ + }) + /* * CPUID Core Generation Bit * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x diff --git a/include/asm-arm/arch-pxa/mfp-pxa930.h b/include/asm-arm/arch-pxa/mfp-pxa930.h new file mode 100644 index 000000000000..c4e945ab1923 --- /dev/null +++ b/include/asm-arm/arch-pxa/mfp-pxa930.h @@ -0,0 +1,491 @@ +/* + * linux/include/asm-arm/arch-pxa/mfp-pxa930.h + * + * PXA930 specific MFP configuration definitions + * + * Copyright (C) 2007-2008 Marvell International Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_MFP_PXA9xx_H +#define __ASM_ARCH_MFP_PXA9xx_H + +#include +#include + +/* GPIO */ +#define GPIO46_GPIO MFP_CFG(GPIO46, AF0) +#define GPIO49_GPIO MFP_CFG(GPIO49, AF0) +#define GPIO50_GPIO MFP_CFG(GPIO50, AF0) +#define GPIO51_GPIO MFP_CFG(GPIO51, AF0) +#define GPIO52_GPIO MFP_CFG(GPIO52, AF0) +#define GPIO56_GPIO MFP_CFG(GPIO56, AF0) +#define GPIO58_GPIO MFP_CFG(GPIO58, AF0) +#define GPIO59_GPIO MFP_CFG(GPIO59, AF0) +#define GPIO60_GPIO MFP_CFG(GPIO60, AF0) +#define GPIO61_GPIO MFP_CFG(GPIO61, AF0) +#define GPIO62_GPIO MFP_CFG(GPIO62, AF0) + +#define GSIM_UCLK_GPIO_79 MFP_CFG(GSIM_UCLK, AF0) +#define GSIM_UIO_GPIO_80 MFP_CFG(GSIM_UIO, AF0) +#define GSIM_nURST_GPIO_81 MFP_CFG(GSIM_nURST, AF0) +#define GSIM_UDET_GPIO_82 MFP_CFG(GSIM_UDET, AF0) + +#define DF_IO15_GPIO_28 MFP_CFG(DF_IO15, AF0) +#define DF_IO14_GPIO_29 MFP_CFG(DF_IO14, AF0) +#define DF_IO13_GPIO_30 MFP_CFG(DF_IO13, AF0) +#define DF_IO12_GPIO_31 MFP_CFG(DF_IO12, AF0) +#define DF_IO11_GPIO_32 MFP_CFG(DF_IO11, AF0) +#define DF_IO10_GPIO_33 MFP_CFG(DF_IO10, AF0) +#define DF_IO9_GPIO_34 MFP_CFG(DF_IO9, AF0) +#define DF_IO8_GPIO_35 MFP_CFG(DF_IO8, AF0) +#define DF_IO7_GPIO_36 MFP_CFG(DF_IO7, AF0) +#define DF_IO6_GPIO_37 MFP_CFG(DF_IO6, AF0) +#define DF_IO5_GPIO_38 MFP_CFG(DF_IO5, AF0) +#define DF_IO4_GPIO_39 MFP_CFG(DF_IO4, AF0) +#define DF_IO3_GPIO_40 MFP_CFG(DF_IO3, AF0) +#define DF_IO2_GPIO_41 MFP_CFG(DF_IO2, AF0) +#define DF_IO1_GPIO_42 MFP_CFG(DF_IO1, AF0) +#define DF_IO0_GPIO_43 MFP_CFG(DF_IO0, AF0) +#define DF_nCS0_GPIO_44 MFP_CFG(DF_nCS0, AF0) +#define DF_nCS1_GPIO_45 MFP_CFG(DF_nCS1, AF0) +#define DF_nWE_GPIO_46 MFP_CFG(DF_nWE, AF0) +#define DF_nRE_nOE_GPIO_47 MFP_CFG(DF_nRE_nOE, AF0) +#define DF_CLE_nOE_GPIO_48 MFP_CFG(DF_CLE_nOE, AF0) +#define DF_nADV1_ALE_GPIO_49 MFP_CFG(DF_nADV1_ALE, AF0) +#define DF_nADV2_ALE_GPIO_50 MFP_CFG(DF_nADV2_ALE, AF0) +#define DF_INT_RnB_GPIO_51 MFP_CFG(DF_INT_RnB, AF0) +#define DF_SCLK_E_GPIO_52 MFP_CFG(DF_SCLK_E, AF0) + +#define DF_ADDR0_GPIO_53 MFP_CFG(DF_ADDR0, AF0) +#define DF_ADDR1_GPIO_54 MFP_CFG(DF_ADDR1, AF0) +#define DF_ADDR2_GPIO_55 MFP_CFG(DF_ADDR2, AF0) +#define DF_ADDR3_GPIO_56 MFP_CFG(DF_ADDR3, AF0) +#define nXCVREN_GPIO_57 MFP_CFG(nXCVREN, AF0) +#define nLUA_GPIO_58 MFP_CFG(nLUA, AF0) +#define nLLA_GPIO_59 MFP_CFG(nLLA, AF0) +#define nBE0_GPIO_60 MFP_CFG(nBE0, AF0) +#define nBE1_GPIO_61 MFP_CFG(nBE1, AF0) +#define RDY_GPIO_62 MFP_CFG(RDY, AF0) + +/* Chip Select */ +#define DF_nCS0_nCS2 MFP_CFG_LPM(DF_nCS0, AF3, PULL_HIGH) +#define DF_nCS1_nCS3 MFP_CFG_LPM(DF_nCS1, AF3, PULL_HIGH) + +/* AC97 */ +#define GPIO83_BAC97_SYSCLK MFP_CFG(GPIO83, AF3) +#define GPIO84_BAC97_SDATA_IN0 MFP_CFG(GPIO84, AF3) +#define GPIO85_BAC97_BITCLK MFP_CFG(GPIO85, AF3) +#define GPIO86_BAC97_nRESET MFP_CFG(GPIO86, AF3) +#define GPIO87_BAC97_SYNC MFP_CFG(GPIO87, AF3) +#define GPIO88_BAC97_SDATA_OUT MFP_CFG(GPIO88, AF3) + +/* I2C */ +#define GPIO39_CI2C_SCL MFP_CFG_LPM(GPIO39, AF3, PULL_HIGH) +#define GPIO40_CI2C_SDA MFP_CFG_LPM(GPIO40, AF3, PULL_HIGH) + +#define GPIO51_CI2C_SCL MFP_CFG_LPM(GPIO51, AF3, PULL_HIGH) +#define GPIO52_CI2C_SDA MFP_CFG_LPM(GPIO52, AF3, PULL_HIGH) + +#define GPIO63_CI2C_SCL MFP_CFG_LPM(GPIO63, AF4, PULL_HIGH) +#define GPIO64_CI2C_SDA MFP_CFG_LPM(GPIO64, AF4, PULL_HIGH) + +#define GPIO77_CI2C_SCL MFP_CFG_LPM(GPIO77, AF2, PULL_HIGH) +#define GPIO78_CI2C_SDA MFP_CFG_LPM(GPIO78, AF2, PULL_HIGH) + +#define GPIO89_CI2C_SCL MFP_CFG_LPM(GPIO89, AF1, PULL_HIGH) +#define GPIO90_CI2C_SDA MFP_CFG_LPM(GPIO90, AF1, PULL_HIGH) + +#define GPIO95_CI2C_SCL MFP_CFG_LPM(GPIO95, AF1, PULL_HIGH) +#define GPIO96_CI2C_SDA MFP_CFG_LPM(GPIO96, AF1, PULL_HIGH) + +#define GPIO97_CI2C_SCL MFP_CFG_LPM(GPIO97, AF3, PULL_HIGH) +#define GPIO98_CI2C_SDA MFP_CFG_LPM(GPIO98, AF3, PULL_HIGH) + +/* QCI */ +#define GPIO63_CI_DD_9 MFP_CFG_LPM(GPIO63, AF1, PULL_LOW) +#define GPIO64_CI_DD_8 MFP_CFG_LPM(GPIO64, AF1, PULL_LOW) +#define GPIO65_CI_DD_7 MFP_CFG_LPM(GPIO65, AF1, PULL_LOW) +#define GPIO66_CI_DD_6 MFP_CFG_LPM(GPIO66, AF1, PULL_LOW) +#define GPIO67_CI_DD_5 MFP_CFG_LPM(GPIO67, AF1, PULL_LOW) +#define GPIO68_CI_DD_4 MFP_CFG_LPM(GPIO68, AF1, PULL_LOW) +#define GPIO69_CI_DD_3 MFP_CFG_LPM(GPIO69, AF1, PULL_LOW) +#define GPIO70_CI_DD_2 MFP_CFG_LPM(GPIO70, AF1, PULL_LOW) +#define GPIO71_CI_DD_1 MFP_CFG_LPM(GPIO71, AF1, PULL_LOW) +#define GPIO72_CI_DD_0 MFP_CFG_LPM(GPIO72, AF1, PULL_LOW) +#define GPIO73_CI_HSYNC MFP_CFG_LPM(GPIO73, AF1, PULL_LOW) +#define GPIO74_CI_VSYNC MFP_CFG_LPM(GPIO74, AF1, PULL_LOW) +#define GPIO75_CI_MCLK MFP_CFG_LPM(GPIO75, AF1, PULL_LOW) +#define GPIO76_CI_PCLK MFP_CFG_LPM(GPIO76, AF1, PULL_LOW) + +/* KEYPAD */ +#define GPIO4_KP_DKIN_4 MFP_CFG_LPM(GPIO4, AF3, FLOAT) +#define GPIO5_KP_DKIN_5 MFP_CFG_LPM(GPIO5, AF3, FLOAT) +#define GPIO6_KP_DKIN_6 MFP_CFG_LPM(GPIO6, AF3, FLOAT) +#define GPIO7_KP_DKIN_7 MFP_CFG_LPM(GPIO7, AF3, FLOAT) +#define GPIO8_KP_DKIN_4 MFP_CFG_LPM(GPIO8, AF3, FLOAT) +#define GPIO9_KP_DKIN_5 MFP_CFG_LPM(GPIO9, AF3, FLOAT) +#define GPIO10_KP_DKIN_6 MFP_CFG_LPM(GPIO10, AF3, FLOAT) +#define GPIO11_KP_DKIN_7 MFP_CFG_LPM(GPIO11, AF3, FLOAT) + +#define GPIO12_KP_DKIN_0 MFP_CFG_LPM(GPIO12, AF2, FLOAT) +#define GPIO13_KP_DKIN_1 MFP_CFG_LPM(GPIO13, AF2, FLOAT) +#define GPIO14_KP_DKIN_2 MFP_CFG_LPM(GPIO14, AF2, FLOAT) +#define GPIO15_KP_DKIN_3 MFP_CFG_LPM(GPIO15, AF2, FLOAT) + +#define GPIO41_KP_DKIN_0 MFP_CFG_LPM(GPIO41, AF2, FLOAT) +#define GPIO42_KP_DKIN_1 MFP_CFG_LPM(GPIO42, AF2, FLOAT) +#define GPIO43_KP_DKIN_2 MFP_CFG_LPM(GPIO43, AF2, FLOAT) +#define GPIO44_KP_DKIN_3 MFP_CFG_LPM(GPIO44, AF2, FLOAT) +#define GPIO41_KP_DKIN_4 MFP_CFG_LPM(GPIO41, AF4, FLOAT) +#define GPIO42_KP_DKIN_5 MFP_CFG_LPM(GPIO42, AF4, FLOAT) + +#define GPIO0_KP_MKIN_0 MFP_CFG_LPM(GPIO0, AF1, FLOAT) +#define GPIO2_KP_MKIN_1 MFP_CFG_LPM(GPIO2, AF1, FLOAT) +#define GPIO4_KP_MKIN_2 MFP_CFG_LPM(GPIO4, AF1, FLOAT) +#define GPIO6_KP_MKIN_3 MFP_CFG_LPM(GPIO6, AF1, FLOAT) +#define GPIO8_KP_MKIN_4 MFP_CFG_LPM(GPIO8, AF1, FLOAT) +#define GPIO10_KP_MKIN_5 MFP_CFG_LPM(GPIO10, AF1, FLOAT) +#define GPIO12_KP_MKIN_6 MFP_CFG_LPM(GPIO12, AF1, FLOAT) +#define GPIO14_KP_MKIN_7 MFP_CFG(GPIO14, AF1) +#define GPIO35_KP_MKIN_5 MFP_CFG(GPIO35, AF4) + +#define GPIO1_KP_MKOUT_0 MFP_CFG_LPM(GPIO1, AF1, DRIVE_HIGH) +#define GPIO3_KP_MKOUT_1 MFP_CFG_LPM(GPIO3, AF1, DRIVE_HIGH) +#define GPIO5_KP_MKOUT_2 MFP_CFG_LPM(GPIO5, AF1, DRIVE_HIGH) +#define GPIO7_KP_MKOUT_3 MFP_CFG_LPM(GPIO7, AF1, DRIVE_HIGH) +#define GPIO9_KP_MKOUT_4 MFP_CFG_LPM(GPIO9, AF1, DRIVE_HIGH) +#define GPIO11_KP_MKOUT_5 MFP_CFG_LPM(GPIO11, AF1, DRIVE_HIGH) +#define GPIO13_KP_MKOUT_6 MFP_CFG_LPM(GPIO13, AF1, DRIVE_HIGH) +#define GPIO15_KP_MKOUT_7 MFP_CFG_LPM(GPIO15, AF1, DRIVE_HIGH) +#define GPIO36_KP_MKOUT_5 MFP_CFG_LPM(GPIO36, AF4, DRIVE_HIGH) + +/* LCD */ +#define GPIO17_LCD_FCLK_RD MFP_CFG(GPIO17, AF1) +#define GPIO18_LCD_LCLK_A0 MFP_CFG(GPIO18, AF1) +#define GPIO19_LCD_PCLK_WR MFP_CFG(GPIO19, AF1) +#define GPIO20_LCD_BIAS MFP_CFG(GPIO20, AF1) +#define GPIO21_LCD_CS MFP_CFG(GPIO21, AF1) +#define GPIO22_LCD_CS2 MFP_CFG(GPIO22, AF2) +#define GPIO22_LCD_VSYNC MFP_CFG(GPIO22, AF1) +#define GPIO23_LCD_DD0 MFP_CFG(GPIO23, AF1) +#define GPIO24_LCD_DD1 MFP_CFG(GPIO24, AF1) +#define GPIO25_LCD_DD2 MFP_CFG(GPIO25, AF1) +#define GPIO26_LCD_DD3 MFP_CFG(GPIO26, AF1) +#define GPIO27_LCD_DD4 MFP_CFG(GPIO27, AF1) +#define GPIO28_LCD_DD5 MFP_CFG(GPIO28, AF1) +#define GPIO29_LCD_DD6 MFP_CFG(GPIO29, AF1) +#define GPIO30_LCD_DD7 MFP_CFG(GPIO30, AF1) +#define GPIO31_LCD_DD8 MFP_CFG(GPIO31, AF1) +#define GPIO32_LCD_DD9 MFP_CFG(GPIO32, AF1) +#define GPIO33_LCD_DD10 MFP_CFG(GPIO33, AF1) +#define GPIO34_LCD_DD11 MFP_CFG(GPIO34, AF1) +#define GPIO35_LCD_DD12 MFP_CFG(GPIO35, AF1) +#define GPIO36_LCD_DD13 MFP_CFG(GPIO36, AF1) +#define GPIO37_LCD_DD14 MFP_CFG(GPIO37, AF1) +#define GPIO38_LCD_DD15 MFP_CFG(GPIO38, AF1) +#define GPIO39_LCD_DD16 MFP_CFG(GPIO39, AF1) +#define GPIO40_LCD_DD17 MFP_CFG(GPIO40, AF1) +#define GPIO41_LCD_CS2 MFP_CFG(GPIO41, AF3) +#define GPIO42_LCD_VSYNC2 MFP_CFG(GPIO42, AF3) +#define GPIO44_LCD_DD7 MFP_CFG(GPIO44, AF1) + +/* Mini-LCD */ +#define GPIO17_MLCD_FCLK MFP_CFG(GPIO17, AF3) +#define GPIO18_MLCD_LCLK MFP_CFG(GPIO18, AF3) +#define GPIO19_MLCD_PCLK MFP_CFG(GPIO19, AF3) +#define GPIO20_MLCD_BIAS MFP_CFG(GPIO20, AF3) +#define GPIO23_MLCD_DD0 MFP_CFG(GPIO23, AF3) +#define GPIO24_MLCD_DD1 MFP_CFG(GPIO24, AF3) +#define GPIO25_MLCD_DD2 MFP_CFG(GPIO25, AF3) +#define GPIO26_MLCD_DD3 MFP_CFG(GPIO26, AF3) +#define GPIO27_MLCD_DD4 MFP_CFG(GPIO27, AF3) +#define GPIO28_MLCD_DD5 MFP_CFG(GPIO28, AF3) +#define GPIO29_MLCD_DD6 MFP_CFG(GPIO29, AF3) +#define GPIO30_MLCD_DD7 MFP_CFG(GPIO30, AF3) +#define GPIO31_MLCD_DD8 MFP_CFG(GPIO31, AF3) +#define GPIO32_MLCD_DD9 MFP_CFG(GPIO32, AF3) +#define GPIO33_MLCD_DD10 MFP_CFG(GPIO33, AF3) +#define GPIO34_MLCD_DD11 MFP_CFG(GPIO34, AF3) +#define GPIO35_MLCD_DD12 MFP_CFG(GPIO35, AF3) +#define GPIO36_MLCD_DD13 MFP_CFG(GPIO36, AF3) +#define GPIO37_MLCD_DD14 MFP_CFG(GPIO37, AF3) +#define GPIO38_MLCD_DD15 MFP_CFG(GPIO38, AF3) +#define GPIO44_MLCD_DD7 MFP_CFG(GPIO44, AF5) + +/* MMC1 */ +#define GPIO10_MMC1_DAT3 MFP_CFG(GPIO10, AF4) +#define GPIO11_MMC1_DAT2 MFP_CFG(GPIO11, AF4) +#define GPIO12_MMC1_DAT1 MFP_CFG(GPIO12, AF4) +#define GPIO13_MMC1_DAT0 MFP_CFG(GPIO13, AF4) +#define GPIO14_MMC1_CMD MFP_CFG(GPIO14, AF4) +#define GPIO15_MMC1_CLK MFP_CFG(GPIO15, AF4) +#define GPIO55_MMC1_CMD MFP_CFG(GPIO55, AF3) +#define GPIO56_MMC1_CLK MFP_CFG(GPIO56, AF3) +#define GPIO57_MMC1_DAT0 MFP_CFG(GPIO57, AF3) +#define GPIO58_MMC1_DAT1 MFP_CFG(GPIO58, AF3) +#define GPIO59_MMC1_DAT2 MFP_CFG(GPIO59, AF3) +#define GPIO60_MMC1_DAT3 MFP_CFG(GPIO60, AF3) + +#define DF_ADDR0_MMC1_CLK MFP_CFG(DF_ADDR0, AF2) +#define DF_ADDR1_MMC1_CMD MFP_CFG(DF_ADDR1, AF2) +#define DF_ADDR2_MMC1_DAT0 MFP_CFG(DF_ADDR2, AF2) +#define DF_ADDR3_MMC1_DAT1 MFP_CFG(DF_ADDR3, AF3) +#define nXCVREN_MMC1_DAT2 MFP_CFG(nXCVREN, AF2) + +/* MMC2 */ +#define GPIO31_MMC2_CMD MFP_CFG(GPIO31, AF7) +#define GPIO32_MMC2_CLK MFP_CFG(GPIO32, AF7) +#define GPIO33_MMC2_DAT0 MFP_CFG(GPIO33, AF7) +#define GPIO34_MMC2_DAT1 MFP_CFG(GPIO34, AF7) +#define GPIO35_MMC2_DAT2 MFP_CFG(GPIO35, AF7) +#define GPIO36_MMC2_DAT3 MFP_CFG(GPIO36, AF7) + +#define GPIO101_MMC2_DAT3 MFP_CFG(GPIO101, AF1) +#define GPIO102_MMC2_DAT2 MFP_CFG(GPIO102, AF1) +#define GPIO103_MMC2_DAT1 MFP_CFG(GPIO103, AF1) +#define GPIO104_MMC2_DAT0 MFP_CFG(GPIO104, AF1) +#define GPIO105_MMC2_CMD MFP_CFG(GPIO105, AF1) +#define GPIO106_MMC2_CLK MFP_CFG(GPIO106, AF1) + +#define DF_IO10_MMC2_DAT3 MFP_CFG(DF_IO10, AF3) +#define DF_IO11_MMC2_DAT2 MFP_CFG(DF_IO11, AF3) +#define DF_IO12_MMC2_DAT1 MFP_CFG(DF_IO12, AF3) +#define DF_IO13_MMC2_DAT0 MFP_CFG(DF_IO13, AF3) +#define DF_IO14_MMC2_CLK MFP_CFG(DF_IO14, AF3) +#define DF_IO15_MMC2_CMD MFP_CFG(DF_IO15, AF3) + +/* BSSP1 */ +#define GPIO12_BSSP1_CLK MFP_CFG(GPIO12, AF3) +#define GPIO13_BSSP1_FRM MFP_CFG(GPIO13, AF3) +#define GPIO14_BSSP1_RXD MFP_CFG(GPIO14, AF3) +#define GPIO15_BSSP1_TXD MFP_CFG(GPIO15, AF3) +#define GPIO97_BSSP1_CLK MFP_CFG(GPIO97, AF5) +#define GPIO98_BSSP1_FRM MFP_CFG(GPIO98, AF5) + +/* BSSP2 */ +#define GPIO84_BSSP2_SDATA_IN MFP_CFG(GPIO84, AF1) +#define GPIO85_BSSP2_BITCLK MFP_CFG(GPIO85, AF1) +#define GPIO86_BSSP2_SYSCLK MFP_CFG(GPIO86, AF1) +#define GPIO87_BSSP2_SYNC MFP_CFG(GPIO87, AF1) +#define GPIO88_BSSP2_DATA_OUT MFP_CFG(GPIO88, AF1) +#define GPIO86_BSSP2_SDATA_IN MFP_CFG(GPIO86, AF4) + +/* BSSP3 */ +#define GPIO79_BSSP3_CLK MFP_CFG(GPIO79, AF1) +#define GPIO80_BSSP3_FRM MFP_CFG(GPIO80, AF1) +#define GPIO81_BSSP3_TXD MFP_CFG(GPIO81, AF1) +#define GPIO82_BSSP3_RXD MFP_CFG(GPIO82, AF1) +#define GPIO83_BSSP3_SYSCLK MFP_CFG(GPIO83, AF1) + +/* BSSP4 */ +#define GPIO43_BSSP4_CLK MFP_CFG(GPIO43, AF4) +#define GPIO44_BSSP4_FRM MFP_CFG(GPIO44, AF4) +#define GPIO45_BSSP4_TXD MFP_CFG(GPIO45, AF4) +#define GPIO46_BSSP4_RXD MFP_CFG(GPIO46, AF4) + +#define GPIO51_BSSP4_CLK MFP_CFG(GPIO51, AF4) +#define GPIO52_BSSP4_FRM MFP_CFG(GPIO52, AF4) +#define GPIO53_BSSP4_TXD MFP_CFG(GPIO53, AF4) +#define GPIO54_BSSP4_RXD MFP_CFG(GPIO54, AF4) + +/* GSSP1 */ +#define GPIO79_GSSP1_CLK MFP_CFG(GPIO79, AF2) +#define GPIO80_GSSP1_FRM MFP_CFG(GPIO80, AF2) +#define GPIO81_GSSP1_TXD MFP_CFG(GPIO81, AF2) +#define GPIO82_GSSP1_RXD MFP_CFG(GPIO82, AF2) +#define GPIO83_GSSP1_SYSCLK MFP_CFG(GPIO83, AF2) + +#define GPIO93_GSSP1_CLK MFP_CFG(GPIO93, AF4) +#define GPIO94_GSSP1_FRM MFP_CFG(GPIO94, AF4) +#define GPIO95_GSSP1_TXD MFP_CFG(GPIO95, AF4) +#define GPIO96_GSSP1_RXD MFP_CFG(GPIO96, AF4) + +/* GSSP2 */ +#define GPIO47_GSSP2_CLK MFP_CFG(GPIO47, AF4) +#define GPIO48_GSSP2_FRM MFP_CFG(GPIO48, AF4) +#define GPIO49_GSSP2_RXD MFP_CFG(GPIO49, AF4) +#define GPIO50_GSSP2_TXD MFP_CFG(GPIO50, AF4) + +#define GPIO69_GSSP2_CLK MFP_CFG(GPIO69, AF4) +#define GPIO70_GSSP2_FRM MFP_CFG(GPIO70, AF4) +#define GPIO71_GSSP2_RXD MFP_CFG(GPIO71, AF4) +#define GPIO72_GSSP2_TXD MFP_CFG(GPIO72, AF4) + +#define GPIO84_GSSP2_RXD MFP_CFG(GPIO84, AF2) +#define GPIO85_GSSP2_CLK MFP_CFG(GPIO85, AF2) +#define GPIO86_GSSP2_SYSCLK MFP_CFG(GPIO86, AF2) +#define GPIO87_GSSP2_FRM MFP_CFG(GPIO87, AF2) +#define GPIO88_GSSP2_TXD MFP_CFG(GPIO88, AF2) +#define GPIO86_GSSP2_RXD MFP_CFG(GPIO86, AF5) + +#define GPIO103_GSSP2_CLK MFP_CFG(GPIO103, AF2) +#define GPIO104_GSSP2_FRM MFP_CFG(GPIO104, AF2) +#define GPIO105_GSSP2_RXD MFP_CFG(GPIO105, AF2) +#define GPIO106_GSSP2_TXD MFP_CFG(GPIO106, AF2) + +/* UART1 - FFUART */ +#define GPIO47_UART1_DSR_N MFP_CFG(GPIO47, AF1) +#define GPIO48_UART1_DTR_N MFP_CFG(GPIO48, AF1) +#define GPIO49_UART1_RI MFP_CFG(GPIO49, AF1) +#define GPIO50_UART1_DCD MFP_CFG(GPIO50, AF1) +#define GPIO51_UART1_CTS MFP_CFG(GPIO51, AF1) +#define GPIO52_UART1_RTS MFP_CFG(GPIO52, AF1) +#define GPIO53_UART1_RXD MFP_CFG(GPIO53, AF1) +#define GPIO54_UART1_TXD MFP_CFG(GPIO54, AF1) + +#define GPIO63_UART1_TXD MFP_CFG(GPIO63, AF2) +#define GPIO64_UART1_RXD MFP_CFG(GPIO64, AF2) +#define GPIO65_UART1_DSR MFP_CFG(GPIO65, AF2) +#define GPIO66_UART1_DTR MFP_CFG(GPIO66, AF2) +#define GPIO67_UART1_RI MFP_CFG(GPIO67, AF2) +#define GPIO68_UART1_DCD MFP_CFG(GPIO68, AF2) +#define GPIO69_UART1_CTS MFP_CFG(GPIO69, AF2) +#define GPIO70_UART1_RTS MFP_CFG(GPIO70, AF2) + +/* UART2 - BTUART */ +#define GPIO91_UART2_RXD MFP_CFG(GPIO91, AF1) +#define GPIO92_UART2_TXD MFP_CFG(GPIO92, AF1) +#define GPIO93_UART2_CTS MFP_CFG(GPIO93, AF1) +#define GPIO94_UART2_RTS MFP_CFG(GPIO94, AF1) + +/* UART3 - STUART */ +#define GPIO43_UART3_RTS MFP_CFG(GPIO43, AF3) +#define GPIO44_UART3_CTS MFP_CFG(GPIO44, AF3) +#define GPIO45_UART3_RXD MFP_CFG(GPIO45, AF3) +#define GPIO46_UART3_TXD MFP_CFG(GPIO46, AF3) + +#define GPIO75_UART3_RTS MFP_CFG(GPIO75, AF5) +#define GPIO76_UART3_CTS MFP_CFG(GPIO76, AF5) +#define GPIO77_UART3_TXD MFP_CFG(GPIO77, AF5) +#define GPIO78_UART3_RXD MFP_CFG(GPIO78, AF5) + +/* DFI */ +#define DF_IO0_DF_IO0 MFP_CFG(DF_IO0, AF2) +#define DF_IO1_DF_IO1 MFP_CFG(DF_IO1, AF2) +#define DF_IO2_DF_IO2 MFP_CFG(DF_IO2, AF2) +#define DF_IO3_DF_IO3 MFP_CFG(DF_IO3, AF2) +#define DF_IO4_DF_IO4 MFP_CFG(DF_IO4, AF2) +#define DF_IO5_DF_IO5 MFP_CFG(DF_IO5, AF2) +#define DF_IO6_DF_IO6 MFP_CFG(DF_IO6, AF2) +#define DF_IO7_DF_IO7 MFP_CFG(DF_IO7, AF2) +#define DF_IO8_DF_IO8 MFP_CFG(DF_IO8, AF2) +#define DF_IO9_DF_IO9 MFP_CFG(DF_IO9, AF2) +#define DF_IO10_DF_IO10 MFP_CFG(DF_IO10, AF2) +#define DF_IO11_DF_IO11 MFP_CFG(DF_IO11, AF2) +#define DF_IO12_DF_IO12 MFP_CFG(DF_IO12, AF2) +#define DF_IO13_DF_IO13 MFP_CFG(DF_IO13, AF2) +#define DF_IO14_DF_IO14 MFP_CFG(DF_IO14, AF2) +#define DF_IO15_DF_IO15 MFP_CFG(DF_IO15, AF2) +#define DF_nADV1_ALE_DF_nADV1 MFP_CFG(DF_nADV1_ALE, AF2) +#define DF_nADV2_ALE_DF_nADV2 MFP_CFG(DF_nADV2_ALE, AF2) +#define DF_nCS0_DF_nCS0 MFP_CFG(DF_nCS0, AF2) +#define DF_nCS1_DF_nCS1 MFP_CFG(DF_nCS1, AF2) +#define DF_nRE_nOE_DF_nOE MFP_CFG(DF_nRE_nOE, AF2) +#define DF_nWE_DF_nWE MFP_CFG(DF_nWE, AF2) + +/* DFI - NAND */ +#define DF_CLE_nOE_ND_CLE MFP_CFG_LPM(DF_CLE_nOE, AF1, PULL_HIGH) +#define DF_INT_RnB_ND_INT_RnB MFP_CFG_LPM(DF_INT_RnB, AF1, PULL_LOW) +#define DF_IO0_ND_IO0 MFP_CFG_LPM(DF_IO0, AF1, PULL_LOW) +#define DF_IO1_ND_IO1 MFP_CFG_LPM(DF_IO1, AF1, PULL_LOW) +#define DF_IO2_ND_IO2 MFP_CFG_LPM(DF_IO2, AF1, PULL_LOW) +#define DF_IO3_ND_IO3 MFP_CFG_LPM(DF_IO3, AF1, PULL_LOW) +#define DF_IO4_ND_IO4 MFP_CFG_LPM(DF_IO4, AF1, PULL_LOW) +#define DF_IO5_ND_IO5 MFP_CFG_LPM(DF_IO5, AF1, PULL_LOW) +#define DF_IO6_ND_IO6 MFP_CFG_LPM(DF_IO6, AF1, PULL_LOW) +#define DF_IO7_ND_IO7 MFP_CFG_LPM(DF_IO7, AF1, PULL_LOW) +#define DF_IO8_ND_IO8 MFP_CFG_LPM(DF_IO8, AF1, PULL_LOW) +#define DF_IO9_ND_IO9 MFP_CFG_LPM(DF_IO9, AF1, PULL_LOW) +#define DF_IO10_ND_IO10 MFP_CFG_LPM(DF_IO10, AF1, PULL_LOW) +#define DF_IO11_ND_IO11 MFP_CFG_LPM(DF_IO11, AF1, PULL_LOW) +#define DF_IO12_ND_IO12 MFP_CFG_LPM(DF_IO12, AF1, PULL_LOW) +#define DF_IO13_ND_IO13 MFP_CFG_LPM(DF_IO13, AF1, PULL_LOW) +#define DF_IO14_ND_IO14 MFP_CFG_LPM(DF_IO14, AF1, PULL_LOW) +#define DF_IO15_ND_IO15 MFP_CFG_LPM(DF_IO15, AF1, PULL_LOW) +#define DF_nADV1_ALE_ND_ALE MFP_CFG_LPM(DF_nADV1_ALE, AF1, PULL_HIGH) +#define DF_nADV2_ALE_ND_ALE MFP_CFG_LPM(DF_nADV2_ALE, AF1, PULL_HIGH) +#define DF_nADV2_ALE_nCS3 MFP_CFG_LPM(DF_nADV2_ALE, AF3, PULL_HIGH) +#define DF_nCS0_ND_nCS0 MFP_CFG_LPM(DF_nCS0, AF1, PULL_HIGH) +#define DF_nCS1_ND_nCS1 MFP_CFG_LPM(DF_nCS1, AF1, PULL_HIGH) +#define DF_nRE_nOE_ND_nRE MFP_CFG_LPM(DF_nRE_nOE, AF1, PULL_HIGH) +#define DF_nWE_ND_nWE MFP_CFG_LPM(DF_nWE, AF1, PULL_HIGH) + +/* PWM */ +#define GPIO41_PWM0 MFP_CFG_LPM(GPIO41, AF1, PULL_LOW) +#define GPIO42_PWM1 MFP_CFG_LPM(GPIO42, AF1, PULL_LOW) +#define GPIO43_PWM3 MFP_CFG_LPM(GPIO43, AF1, PULL_LOW) +#define GPIO20_PWM0 MFP_CFG_LPM(GPIO20, AF2, PULL_LOW) +#define GPIO21_PWM2 MFP_CFG_LPM(GPIO21, AF3, PULL_LOW) +#define GPIO22_PWM3 MFP_CFG_LPM(GPIO22, AF3, PULL_LOW) + +/* CIR */ +#define GPIO46_CIR_OUT MFP_CFG(GPIO46, AF1) +#define GPIO77_CIR_OUT MFP_CFG(GPIO77, AF3) + +/* USB P2 */ +#define GPIO0_USB_P2_7 MFP_CFG(GPIO0, AF3) +#define GPIO15_USB_P2_7 MFP_CFG(GPIO15, AF5) +#define GPIO16_USB_P2_7 MFP_CFG(GPIO16, AF2) +#define GPIO48_USB_P2_7 MFP_CFG(GPIO48, AF7) +#define GPIO49_USB_P2_7 MFP_CFG(GPIO49, AF6) +#define DF_IO9_USB_P2_7 MFP_CFG(DF_IO9, AF3) + +#define GPIO48_USB_P2_8 MFP_CFG(GPIO48, AF2) +#define GPIO50_USB_P2_7 MFP_CFG_X(GPIO50, AF2, DS02X, FLOAT) +#define GPIO51_USB_P2_5 MFP_CFG(GPIO51, AF2) +#define GPIO47_USB_P2_4 MFP_CFG(GPIO47, AF2) +#define GPIO53_USB_P2_3 MFP_CFG(GPIO53, AF2) +#define GPIO54_USB_P2_6 MFP_CFG(GPIO54, AF2) +#define GPIO49_USB_P2_2 MFP_CFG(GPIO49, AF2) +#define GPIO52_USB_P2_1 MFP_CFG(GPIO52, AF2) + +#define GPIO63_USB_P2_8 MFP_CFG(GPIO63, AF3) +#define GPIO64_USB_P2_7 MFP_CFG(GPIO64, AF3) +#define GPIO65_USB_P2_6 MFP_CFG(GPIO65, AF3) +#define GPIO66_USG_P2_5 MFP_CFG(GPIO66, AF3) +#define GPIO67_USB_P2_4 MFP_CFG(GPIO67, AF3) +#define GPIO68_USB_P2_3 MFP_CFG(GPIO68, AF3) +#define GPIO69_USB_P2_2 MFP_CFG(GPIO69, AF3) +#define GPIO70_USB_P2_1 MFP_CFG(GPIO70, AF3) + +/* ULPI */ +#define GPIO31_USB_ULPI_D0 MFP_CFG(GPIO31, AF4) +#define GPIO30_USB_ULPI_D1 MFP_CFG(GPIO30, AF7) +#define GPIO33_USB_ULPI_D2 MFP_CFG(GPIO33, AF5) +#define GPIO34_USB_ULPI_D3 MFP_CFG(GPIO34, AF5) +#define GPIO35_USB_ULPI_D4 MFP_CFG(GPIO35, AF5) +#define GPIO36_USB_ULPI_D5 MFP_CFG(GPIO36, AF5) +#define GPIO41_USB_ULPI_D6 MFP_CFG(GPIO41, AF5) +#define GPIO42_USB_ULPI_D7 MFP_CFG(GPIO42, AF5) +#define GPIO37_USB_ULPI_DIR MFP_CFG(GPIO37, AF4) +#define GPIO38_USB_ULPI_CLK MFP_CFG(GPIO38, AF4) +#define GPIO39_USB_ULPI_STP MFP_CFG(GPIO39, AF4) +#define GPIO40_USB_ULPI_NXT MFP_CFG(GPIO40, AF4) + +#define GPIO3_CLK26MOUTDMD MFP_CFG(GPIO3, AF3) +#define GPIO40_CLK26MOUTDMD MFP_CFG(GPIO40, AF7) +#define GPIO94_CLK26MOUTDMD MFP_CFG(GPIO94, AF5) +#define GPIO104_CLK26MOUTDMD MFP_CFG(GPIO104, AF4) +#define DF_ADDR1_CLK26MOUTDMD MFP_CFG(DF_ADDR2, AF3) +#define DF_ADDR3_CLK26MOUTDMD MFP_CFG(DF_ADDR3, AF3) + +#define GPIO14_CLK26MOUT MFP_CFG(GPIO14, AF5) +#define GPIO38_CLK26MOUT MFP_CFG(GPIO38, AF7) +#define GPIO92_CLK26MOUT MFP_CFG(GPIO92, AF5) +#define GPIO105_CLK26MOUT MFP_CFG(GPIO105, AF4) + +#define GPIO2_CLK13MOUTDMD MFP_CFG(GPIO2, AF3) +#define GPIO39_CLK13MOUTDMD MFP_CFG(GPIO39, AF7) +#define GPIO50_CLK13MOUTDMD MFP_CFG(GPIO50, AF3) +#define GPIO93_CLK13MOUTDMD MFP_CFG(GPIO93, AF5) +#define GPIO103_CLK13MOUTDMD MFP_CFG(GPIO103, AF4) +#define DF_ADDR2_CLK13MOUTDMD MFP_CFG(DF_ADDR2, AF3) + +/* 1 wire */ +#define GPIO95_OW_DQ_IN MFP_CFG(GPIO95, AF5) + +#endif /* __ASM_ARCH_MFP_PXA9xx_H */ diff --git a/include/asm-arm/arch-pxa/mfp.h b/include/asm-arm/arch-pxa/mfp.h index 02f6157396d3..e7d58798da67 100644 --- a/include/asm-arm/arch-pxa/mfp.h +++ b/include/asm-arm/arch-pxa/mfp.h @@ -210,6 +210,14 @@ enum { MFP_PIN_DF_IO14, MFP_PIN_DF_IO15, + /* additional pins on PXA930 */ + MFP_PIN_GSIM_UIO, + MFP_PIN_GSIM_UCLK, + MFP_PIN_GSIM_UDET, + MFP_PIN_GSIM_nURST, + MFP_PIN_PMIC_INT, + MFP_PIN_RDY, + MFP_PIN_MAX, }; -- cgit v1.2.3 From 68e2fc78e5055740126df8eab0d31005495756c9 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 14 Jul 2008 16:51:57 +0800 Subject: Blackfin arch: Fix bug - Kernel does not boot if re-program clocks Don't write conflicting data to EBIU_SDBCTL after the SDRAM is configured. This can cause data corruption, since we might change SDRAM row and column addressing modes. Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/Kconfig | 14 -------------- arch/blackfin/mach-bf527/head.S | 12 +++--------- arch/blackfin/mach-bf533/head.S | 12 +++--------- arch/blackfin/mach-bf537/head.S | 12 +++--------- arch/blackfin/mach-bf548/head.S | 6 +++--- arch/blackfin/mach-bf561/head.S | 6 ------ include/asm-blackfin/mach-bf527/mem_init.h | 27 --------------------------- include/asm-blackfin/mach-bf533/mem_init.h | 27 --------------------------- include/asm-blackfin/mach-bf537/mem_init.h | 27 --------------------------- include/asm-blackfin/mach-bf561/mem_init.h | 27 --------------------------- 10 files changed, 12 insertions(+), 158 deletions(-) (limited to 'include') diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index b87634e75f20..d0f7ff3dc088 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -315,20 +315,6 @@ config MEM_SIZE depends on BFIN_KERNEL_CLOCK default 64 -config MEM_ADD_WIDTH - int "Memory Address Width" - depends on BFIN_KERNEL_CLOCK - depends on (!BF54x) - range 8 11 - default 9 if BFIN533_EZKIT - default 9 if BFIN561_EZKIT - default 9 if H8606_HVSISTEMAS - default 10 if BFIN527_EZKIT - default 10 if BFIN537_STAMP - default 11 if BFIN533_STAMP - default 10 if PNAV10 - default 10 if BFIN532_IP0X - config PLL_BYPASS bool "Bypass PLL" depends on BFIN_KERNEL_CLOCK diff --git a/arch/blackfin/mach-bf527/head.S b/arch/blackfin/mach-bf527/head.S index 57bdb3ba2fed..fe05cc1ef174 100644 --- a/arch/blackfin/mach-bf527/head.S +++ b/arch/blackfin/mach-bf527/head.S @@ -32,7 +32,7 @@ #include #include -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK #include #include #endif @@ -185,7 +185,7 @@ ENTRY(__start) /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ call _bf53x_relocate_l1_mem; -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK call _start_dma_code; #endif @@ -318,7 +318,7 @@ ENDPROC(_real_start) __FINIT .section .l1.text -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK ENTRY(_start_dma_code) /* Enable PHY CLK buffer output */ @@ -398,12 +398,6 @@ ENTRY(_start_dma_code) w[p0] = r0.l; ssync; - p0.l = LO(EBIU_SDBCTL); - p0.h = HI(EBIU_SDBCTL); /* SDRAM Memory Bank Control Register */ - r0 = mem_SDBCTL; - w[p0] = r0.l; - ssync; - P2.H = hi(EBIU_SDGCTL); P2.L = lo(EBIU_SDGCTL); R0 = [P2]; diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S index 1295deac00a4..c671e8549b17 100644 --- a/arch/blackfin/mach-bf533/head.S +++ b/arch/blackfin/mach-bf533/head.S @@ -31,7 +31,7 @@ #include #include #include -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK #include #include #endif @@ -186,7 +186,7 @@ ENTRY(__start) /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ call _bf53x_relocate_l1_mem; -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK call _start_dma_code; #endif @@ -319,7 +319,7 @@ ENDPROC(_real_start) __FINIT .section .l1.text -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK ENTRY(_start_dma_code) p0.h = hi(SIC_IWR); p0.l = lo(SIC_IWR); @@ -390,12 +390,6 @@ ENTRY(_start_dma_code) w[p0] = r0.l; ssync; - p0.l = LO(EBIU_SDBCTL); - p0.h = HI(EBIU_SDBCTL); /* SDRAM Memory Bank Control Register */ - r0 = mem_SDBCTL; - w[p0] = r0.l; - ssync; - P2.H = hi(EBIU_SDGCTL); P2.L = lo(EBIU_SDGCTL); R0 = [P2]; diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S index 48cd58a410a0..6b019eaee0b6 100644 --- a/arch/blackfin/mach-bf537/head.S +++ b/arch/blackfin/mach-bf537/head.S @@ -32,7 +32,7 @@ #include #include -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK #include #include #endif @@ -217,7 +217,7 @@ ENTRY(__start) /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ call _bf53x_relocate_l1_mem; -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK call _start_dma_code; #endif @@ -350,7 +350,7 @@ ENDPROC(_real_start) __FINIT .section .l1.text -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK ENTRY(_start_dma_code) /* Enable PHY CLK buffer output */ @@ -430,12 +430,6 @@ ENTRY(_start_dma_code) w[p0] = r0.l; ssync; - p0.l = LO(EBIU_SDBCTL); - p0.h = HI(EBIU_SDBCTL); /* SDRAM Memory Bank Control Register */ - r0 = mem_SDBCTL; - w[p0] = r0.l; - ssync; - P2.H = hi(EBIU_SDGCTL); P2.L = lo(EBIU_SDGCTL); R0 = [P2]; diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S index f7191141a3ce..06b9178cfcfe 100644 --- a/arch/blackfin/mach-bf548/head.S +++ b/arch/blackfin/mach-bf548/head.S @@ -31,7 +31,7 @@ #include #include #include -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK #include #include #endif @@ -130,7 +130,7 @@ ENTRY(__start) /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ call _bf53x_relocate_l1_mem; -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK call _start_dma_code; #endif /* Code for initializing Async memory banks */ @@ -288,7 +288,7 @@ ENDPROC(_real_start) __FINIT .section .l1.text -#if CONFIG_BFIN_KERNEL_CLOCK +#ifdef CONFIG_BFIN_KERNEL_CLOCK ENTRY(_start_dma_code) /* Enable PHY CLK buffer output */ diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S index 5b8bd40851dd..cf1a2dff01e7 100644 --- a/arch/blackfin/mach-bf561/head.S +++ b/arch/blackfin/mach-bf561/head.S @@ -377,12 +377,6 @@ ENTRY(_start_dma_code) w[p0] = r0.l; ssync; - p0.l = LO(EBIU_SDBCTL); - p0.h = HI(EBIU_SDBCTL); /* SDRAM Memory Bank Control Register */ - r0 = mem_SDBCTL; - w[p0] = r0.l; - ssync; - P2.H = hi(EBIU_SDGCTL); P2.L = lo(EBIU_SDGCTL); R0 = [P2]; diff --git a/include/asm-blackfin/mach-bf527/mem_init.h b/include/asm-blackfin/mach-bf527/mem_init.h index 008ca66719e2..cbe03f4a5698 100644 --- a/include/asm-blackfin/mach-bf527/mem_init.h +++ b/include/asm-blackfin/mach-bf527/mem_init.h @@ -146,33 +146,6 @@ #define SDRAM_CL CL_3 #endif -#if (CONFIG_MEM_SIZE == 128) -#define SDRAM_SIZE EBSZ_128 -#endif -#if (CONFIG_MEM_SIZE == 64) -#define SDRAM_SIZE EBSZ_64 -#endif -#if (CONFIG_MEM_SIZE == 32) -#define SDRAM_SIZE EBSZ_32 -#endif -#if (CONFIG_MEM_SIZE == 16) -#define SDRAM_SIZE EBSZ_16 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 11) -#define SDRAM_WIDTH EBCAW_11 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 10) -#define SDRAM_WIDTH EBCAW_10 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 9) -#define SDRAM_WIDTH EBCAW_9 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 8) -#define SDRAM_WIDTH EBCAW_8 -#endif - -#define mem_SDBCTL (SDRAM_WIDTH | SDRAM_SIZE | EBE) - /* Equation from section 17 (p17-46) of BF533 HRM */ #define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num) diff --git a/include/asm-blackfin/mach-bf533/mem_init.h b/include/asm-blackfin/mach-bf533/mem_init.h index f8f31901fca9..995c06b2b1ef 100644 --- a/include/asm-blackfin/mach-bf533/mem_init.h +++ b/include/asm-blackfin/mach-bf533/mem_init.h @@ -133,33 +133,6 @@ #define SDRAM_CL CL_3 #endif -#if (CONFIG_MEM_SIZE == 128) -#define SDRAM_SIZE EBSZ_128 -#endif -#if (CONFIG_MEM_SIZE == 64) -#define SDRAM_SIZE EBSZ_64 -#endif -#if (CONFIG_MEM_SIZE == 32) -#define SDRAM_SIZE EBSZ_32 -#endif -#if (CONFIG_MEM_SIZE == 16) -#define SDRAM_SIZE EBSZ_16 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 11) -#define SDRAM_WIDTH EBCAW_11 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 10) -#define SDRAM_WIDTH EBCAW_10 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 9) -#define SDRAM_WIDTH EBCAW_9 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 8) -#define SDRAM_WIDTH EBCAW_8 -#endif - -#define mem_SDBCTL (SDRAM_WIDTH | SDRAM_SIZE | EBE) - /* Equation from section 17 (p17-46) of BF533 HRM */ #define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num) diff --git a/include/asm-blackfin/mach-bf537/mem_init.h b/include/asm-blackfin/mach-bf537/mem_init.h index 9ad979d416c6..f67698f670ca 100644 --- a/include/asm-blackfin/mach-bf537/mem_init.h +++ b/include/asm-blackfin/mach-bf537/mem_init.h @@ -139,33 +139,6 @@ #define SDRAM_CL CL_3 #endif -#if (CONFIG_MEM_SIZE == 128) -#define SDRAM_SIZE EBSZ_128 -#endif -#if (CONFIG_MEM_SIZE == 64) -#define SDRAM_SIZE EBSZ_64 -#endif -#if (CONFIG_MEM_SIZE == 32) -#define SDRAM_SIZE EBSZ_32 -#endif -#if (CONFIG_MEM_SIZE == 16) -#define SDRAM_SIZE EBSZ_16 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 11) -#define SDRAM_WIDTH EBCAW_11 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 10) -#define SDRAM_WIDTH EBCAW_10 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 9) -#define SDRAM_WIDTH EBCAW_9 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 8) -#define SDRAM_WIDTH EBCAW_8 -#endif - -#define mem_SDBCTL (SDRAM_WIDTH | SDRAM_SIZE | EBE) - /* Equation from section 17 (p17-46) of BF533 HRM */ #define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num) diff --git a/include/asm-blackfin/mach-bf561/mem_init.h b/include/asm-blackfin/mach-bf561/mem_init.h index 439a5895b346..e163260bca18 100644 --- a/include/asm-blackfin/mach-bf561/mem_init.h +++ b/include/asm-blackfin/mach-bf561/mem_init.h @@ -131,33 +131,6 @@ #define SDRAM_CL CL_3 #endif -#if (CONFIG_MEM_SIZE == 128) -#define SDRAM_SIZE EB0_SZ_128 -#endif -#if (CONFIG_MEM_SIZE == 64) -#define SDRAM_SIZE EB0_SZ_64 -#endif -#if ( CONFIG_MEM_SIZE == 32) -#define SDRAM_SIZE EB0_SZ_32 -#endif -#if (CONFIG_MEM_SIZE == 16) -#define SDRAM_SIZE EB0_SZ_16 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 11) -#define SDRAM_WIDTH EB0_CAW_11 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 10) -#define SDRAM_WIDTH EB0_CAW_10 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 9) -#define SDRAM_WIDTH EB0_CAW_9 -#endif -#if (CONFIG_MEM_ADD_WIDTH == 8) -#define SDRAM_WIDTH EB0_CAW_8 -#endif - -#define mem_SDBCTL (SDRAM_WIDTH | SDRAM_SIZE | EB0_E) - /* Equation from section 17 (p17-46) of BF533 HRM */ #define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num) -- cgit v1.2.3 From 1c0d20cd29aec11a3580cedf0bccec25052e8d4c Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 15 Jul 2008 12:08:50 +0800 Subject: Blackfin arch: add TXDWA definition to enable new feature Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf527/anomaly.h | 2 ++ include/asm-blackfin/mach-bf527/defBF527.h | 1 + include/asm-blackfin/mach-bf537/defBF537.h | 1 + 3 files changed, 4 insertions(+) (limited to 'include') diff --git a/include/asm-blackfin/mach-bf527/anomaly.h b/include/asm-blackfin/mach-bf527/anomaly.h index 4725268a5ada..b7b166f4f064 100644 --- a/include/asm-blackfin/mach-bf527/anomaly.h +++ b/include/asm-blackfin/mach-bf527/anomaly.h @@ -23,6 +23,8 @@ #define ANOMALY_05000245 (1) /* Sensitivity To Noise with Slow Input Edge Rates on External SPORT TX and RX Clocks */ #define ANOMALY_05000265 (1) +/* New Feature: EMAC TX DMA Word Alignment */ +#define ANOMALY_05000285 (1) /* Errors when SSYNC, CSYNC, or Loads to LT, LB and LC Registers Are Interrupted */ #define ANOMALY_05000312 (1) /* Incorrect Access of OTP_STATUS During otp_write() Function */ diff --git a/include/asm-blackfin/mach-bf527/defBF527.h b/include/asm-blackfin/mach-bf527/defBF527.h index 82134f578f32..f1a70db70cb8 100644 --- a/include/asm-blackfin/mach-bf527/defBF527.h +++ b/include/asm-blackfin/mach-bf527/defBF527.h @@ -302,6 +302,7 @@ #define PHYIE 0x00000001 /* PHY_INT Interrupt Enable */ #define RXDWA 0x00000002 /* Receive Frame DMA Word Alignment (Odd/Even*) */ #define RXCKS 0x00000004 /* Enable RX Frame TCP/UDP Checksum Computation */ +#define TXDWA 0x00000010 /* Transmit Frame DMA Word Alignment (Odd/Even*) */ #define MDCDIV 0x00003F00 /* SCLK:MDC Clock Divisor [MDC=SCLK/(2*(N+1))] */ #define SET_MDCDIV(x) (((x)&0x3F)<< 8) /* Set MDC Clock Divisor */ diff --git a/include/asm-blackfin/mach-bf537/defBF537.h b/include/asm-blackfin/mach-bf537/defBF537.h index 3f455909c418..abde24c6d3b1 100644 --- a/include/asm-blackfin/mach-bf537/defBF537.h +++ b/include/asm-blackfin/mach-bf537/defBF537.h @@ -290,6 +290,7 @@ #define PHYIE 0x00000001 /* PHY_INT Interrupt Enable */ #define RXDWA 0x00000002 /* Receive Frame DMA Word Alignment (Odd/Even*) */ #define RXCKS 0x00000004 /* Enable RX Frame TCP/UDP Checksum Computation */ +#define TXDWA 0x00000010 /* Transmit Frame DMA Word Alignment (Odd/Even*) */ #define MDCDIV 0x00003F00 /* SCLK:MDC Clock Divisor [MDC=SCLK/(2*(N+1))] */ #define SET_MDCDIV(x) (((x)&0x3F)<< 8) /* Set MDC Clock Divisor */ -- cgit v1.2.3 From 1efc80b53eb54770139219f99657abd92595fc86 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Sat, 19 Jul 2008 16:57:32 +0800 Subject: Blackfin arch: Functional power management support Enable: PM_SUSPEND_MEM -> Blackfin Hibernate to SDRAM This feature requires a special bootloader (u-boot) supporting return from hibernate. Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/Kconfig | 66 +++- arch/blackfin/kernel/bfin_dma_5xx.c | 26 ++ arch/blackfin/kernel/bfin_gpio.c | 118 ++++++- arch/blackfin/mach-common/dpmc_modes.S | 600 +++++++++++++++++++++++++++++++-- arch/blackfin/mach-common/pm.c | 225 ++++++++++++- include/asm-blackfin/dma.h | 8 + include/asm-blackfin/dpmc.h | 82 ++--- include/asm-blackfin/gpio.h | 19 +- include/asm-blackfin/mach-bf548/gpio.h | 8 + 9 files changed, 1033 insertions(+), 119 deletions(-) (limited to 'include') diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index c602727d1a9a..8f21b78b2e6f 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -880,7 +880,7 @@ config ARCH_SUSPEND_POSSIBLE depends on !SMP choice - prompt "Default Power Saving Mode" + prompt "Standby Power Saving Mode" depends on PM default PM_BFIN_SLEEP_DEEPER config PM_BFIN_SLEEP_DEEPER @@ -899,6 +899,8 @@ config PM_BFIN_SLEEP_DEEPER normal during Sleep Deeper, due to the reduced SCLK frequency. When in the sleep mode, system DMA access to L1 memory is not supported. + If unsure, select "Sleep Deeper". + config PM_BFIN_SLEEP bool "Sleep" help @@ -906,15 +908,17 @@ config PM_BFIN_SLEEP dissipation by disabling the clock to the processor core (CCLK). The PLL and system clock (SCLK), however, continue to operate in this mode. Typically an external event or RTC activity will wake - up the processor. When in the sleep mode, - system DMA access to L1 memory is not supported. + up the processor. When in the sleep mode, system DMA access to L1 + memory is not supported. + + If unsure, select "Sleep Deeper". endchoice config PM_WAKEUP_BY_GPIO - bool "Cause Wakeup Event by GPIO" + bool "Allow Wakeup from Standby by GPIO" config PM_WAKEUP_GPIO_NUMBER - int "Wakeup GPIO number" + int "GPIO number" range 0 47 depends on PM_WAKEUP_BY_GPIO default 2 if BFIN537_STAMP @@ -935,6 +939,58 @@ config PM_WAKEUP_GPIO_POLAR_EDGE_B bool "Both EDGE" endchoice +comment "Possible Suspend Mem / Hibernate Wake-Up Sources" + depends on PM + +config PM_BFIN_WAKE_RTC + bool "Allow Wake-Up from RESET and on-chip RTC" + depends on PM + default n + help + Enable RTC Wake-Up (Voltage Regulator Power-Up) + +config PM_BFIN_WAKE_PH6 + bool "Allow Wake-Up from on-chip PHY or PH6 GP" + depends on PM && (BF52x || BF534 || BF536 || BF537) + default n + help + Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up) + +config PM_BFIN_WAKE_CAN + bool "Allow Wake-Up from on-chip CAN0/1" + depends on PM && (BF54x || BF534 || BF536 || BF537) + default n + help + Enable CAN0/1 Wake-Up (Voltage Regulator Power-Up) + +config PM_BFIN_WAKE_GP + bool "Allow Wake-Up from GPIOs" + depends on PM && BF54x + default n + help + Enable General-Purpose Wake-Up (Voltage Regulator Power-Up) + +config PM_BFIN_WAKE_USB + bool "Allow Wake-Up from on-chip USB" + depends on PM && (BF54x || BF52x) + default n + help + Enable USB Wake-Up (Voltage Regulator Power-Up) + +config PM_BFIN_WAKE_KEYPAD + bool "Allow Wake-Up from on-chip Keypad" + depends on PM && BF54x + default n + help + Enable Keypad Wake-Up (Voltage Regulator Power-Up) + +config PM_BFIN_WAKE_ROTARY + bool "Allow Wake-Up from on-chip Rotary" + depends on PM && BF54x + default n + help + Enable Rotary Wake-Up (Voltage Regulator Power-Up) + endmenu menu "CPU Frequency scaling" diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index d54f19085f37..ad0e75845ac2 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -472,6 +472,32 @@ unsigned long get_dma_curr_addr(unsigned int channel) } EXPORT_SYMBOL(get_dma_curr_addr); +#ifdef CONFIG_PM +int blackfin_dma_suspend(void) +{ + int i; + + for (i = 0; i < MAX_BLACKFIN_DMA_CHANNEL; i++) { + if (dma_ch[i].chan_status == DMA_CHANNEL_ENABLED) { + printk(KERN_ERR "DMA Channel %d failed to suspend\n", i); + return -EBUSY; + } + + dma_ch[i].saved_peripheral_map = dma_ch[i].regs->peripheral_map; + } + + return 0; +} + +void blackfin_dma_resume(void) +{ + int i; + + for (i = 0; i < MAX_BLACKFIN_DMA_CHANNEL; i++) + dma_ch[i].regs->peripheral_map = dma_ch[i].saved_peripheral_map; +} +#endif + static void *__dma_memcpy(void *dest, const void *src, size_t size) { int direction; /* 1 - address decrease, 0 - address increase */ diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index b6d89d1644cc..ecbd141e0ef2 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -186,7 +186,10 @@ static struct str_ident { char name[RESOURCE_LABEL_SIZE]; } str_ident[MAX_RESOURCES]; -#if defined(CONFIG_PM) && !defined(CONFIG_BF54x) +#if defined(CONFIG_PM) +#if defined(CONFIG_BF54x) +static struct gpio_port_s gpio_bank_saved[gpio_bank(MAX_BLACKFIN_GPIOS)]; +#else static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; static unsigned char wakeup_flags_map[MAX_BLACKFIN_GPIOS]; static struct gpio_port_s gpio_bank_saved[gpio_bank(MAX_BLACKFIN_GPIOS)]; @@ -206,7 +209,7 @@ static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PORTF_INT #ifdef BF561_FAMILY static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG0_INTB, IRQ_PROG1_INTB, IRQ_PROG2_INTB}; #endif - +#endif #endif /* CONFIG_PM */ #if defined(BF548_FAMILY) @@ -667,7 +670,7 @@ static int bfin_gpio_wakeup_type(unsigned gpio, unsigned char type) return 0; } -u32 bfin_pm_setup(void) +u32 bfin_pm_standby_setup(void) { u16 bank, mask, i, gpio; @@ -679,7 +682,7 @@ u32 bfin_pm_setup(void) gpio_bankb[bank]->maskb = 0; if (mask) { -#ifdef BF537_FAMILY +#if defined(BF527_FAMILY) || defined(BF537_FAMILY) gpio_bank_saved[bank].fer = *port_fer[bank]; #endif gpio_bank_saved[bank].inen = gpio_bankb[bank]->inen; @@ -715,7 +718,7 @@ u32 bfin_pm_setup(void) return 0; } -void bfin_pm_restore(void) +void bfin_pm_standby_restore(void) { u16 bank, mask, i; @@ -724,7 +727,7 @@ void bfin_pm_restore(void) bank = gpio_bank(i); if (mask) { -#ifdef BF537_FAMILY +#if defined(BF527_FAMILY) || defined(BF537_FAMILY) *port_fer[bank] = gpio_bank_saved[bank].fer; #endif gpio_bankb[bank]->inen = gpio_bank_saved[bank].inen; @@ -743,8 +746,111 @@ void bfin_pm_restore(void) AWA_DUMMY_READ(maskb); } +void bfin_gpio_pm_hibernate_suspend(void) +{ + int i, bank; + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) { + bank = gpio_bank(i); + +#if defined(BF527_FAMILY) || defined(BF537_FAMILY) + gpio_bank_saved[bank].fer = *port_fer[bank]; +#ifdef BF527_FAMILY + gpio_bank_saved[bank].mux = *port_mux[bank]; +#else + if (bank == 0) + gpio_bank_saved[bank].mux = bfin_read_PORT_MUX(); +#endif +#endif + gpio_bank_saved[bank].data = gpio_bankb[bank]->data; + gpio_bank_saved[bank].inen = gpio_bankb[bank]->inen; + gpio_bank_saved[bank].polar = gpio_bankb[bank]->polar; + gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir; + gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge; + gpio_bank_saved[bank].both = gpio_bankb[bank]->both; + gpio_bank_saved[bank].maska = gpio_bankb[bank]->maska; + } + + AWA_DUMMY_READ(maska); +} + +void bfin_gpio_pm_hibernate_restore(void) +{ + int i, bank; + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) { + bank = gpio_bank(i); + +#if defined(BF527_FAMILY) || defined(BF537_FAMILY) +#ifdef BF527_FAMILY + *port_mux[bank] = gpio_bank_saved[bank].mux; +#else + if (bank == 0) + bfin_write_PORT_MUX(gpio_bank_saved[bank].mux); +#endif + *port_fer[bank] = gpio_bank_saved[bank].fer; +#endif + gpio_bankb[bank]->inen = gpio_bank_saved[bank].inen; + gpio_bankb[bank]->dir = gpio_bank_saved[bank].dir; + gpio_bankb[bank]->polar = gpio_bank_saved[bank].polar; + gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge; + gpio_bankb[bank]->both = gpio_bank_saved[bank].both; + + gpio_bankb[bank]->data_set = gpio_bank_saved[bank].data + | gpio_bank_saved[bank].dir; + + gpio_bankb[bank]->maska = gpio_bank_saved[bank].maska; + } + AWA_DUMMY_READ(maska); +} + + #endif #else /* BF548_FAMILY */ +#ifdef CONFIG_PM + +u32 bfin_pm_standby_setup(void) +{ + return 0; +} + +void bfin_pm_standby_restore(void) +{ + +} + +void bfin_gpio_pm_hibernate_suspend(void) +{ + int i, bank; + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) { + bank = gpio_bank(i); + + gpio_bank_saved[bank].fer = gpio_array[bank]->port_fer; + gpio_bank_saved[bank].mux = gpio_array[bank]->port_mux; + gpio_bank_saved[bank].data = gpio_array[bank]->port_data; + gpio_bank_saved[bank].data = gpio_array[bank]->port_data; + gpio_bank_saved[bank].inen = gpio_array[bank]->port_inen; + gpio_bank_saved[bank].dir = gpio_array[bank]->port_dir_set; + } +} + +void bfin_gpio_pm_hibernate_restore(void) +{ + int i, bank; + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) { + bank = gpio_bank(i); + + gpio_array[bank]->port_mux = gpio_bank_saved[bank].mux; + gpio_array[bank]->port_fer = gpio_bank_saved[bank].fer; + gpio_array[bank]->port_inen = gpio_bank_saved[bank].inen; + gpio_array[bank]->port_dir_set = gpio_bank_saved[bank].dir; + gpio_array[bank]->port_set = gpio_bank_saved[bank].data + | gpio_bank_saved[bank].dir; + } +} +#endif unsigned short get_gpio_dir(unsigned gpio) { diff --git a/arch/blackfin/mach-common/dpmc_modes.S b/arch/blackfin/mach-common/dpmc_modes.S index b7981d31c392..46ee77afed20 100644 --- a/arch/blackfin/mach-common/dpmc_modes.S +++ b/arch/blackfin/mach-common/dpmc_modes.S @@ -7,7 +7,7 @@ #include #include #include - +#include .section .l1.text @@ -56,26 +56,25 @@ ENTRY(_hibernate_mode) [--SP] = ( R7:0, P5:0 ); [--SP] = RETS; + R3 = R0; + R0 = IWR_DISABLE_ALL; + R1 = IWR_DISABLE_ALL; + R2 = IWR_DISABLE_ALL; call _set_sic_iwr; + call _set_dram_srfs; + SSYNC; R0 = 0xFFFF (Z); call _set_rtc_istat; P0.H = hi(VR_CTL); P0.L = lo(VR_CTL); - R1 = W[P0](z); - BITSET (R1, 8); - BITCLR (R1, 0); - BITCLR (R1, 1); - W[P0] = R1.L; - SSYNC; + W[P0] = R3.L; CLI R2; IDLE; - - /* Actually, adding anything may not be necessary...SDRAM contents - * are lost - */ +.Lforever: + jump .Lforever; ENTRY(_deep_sleep) [--SP] = ( R7:0, P5:0 ); @@ -233,51 +232,70 @@ ENTRY(_sleep_deeper) ( R7:0, P5:0 ) = [SP++]; RTS; + ENTRY(_set_dram_srfs) /* set the dram to self refresh mode */ -#if defined(CONFIG_BF54x) + SSYNC; +#if defined(EBIU_RSTCTL) /* DDR */ P0.H = hi(EBIU_RSTCTL); P0.L = lo(EBIU_RSTCTL); R2 = [P0]; - R3.H = hi(SRREQ); - R3.L = lo(SRREQ); -#else - P0.H = hi(EBIU_SDGCTL); + BITSET(R2, 3); /* SRREQ enter self-refresh mode */ + [P0] = R2; + SSYNC; +1: + R2 = [P0]; + CC = BITTST(R2, 4); + if !CC JUMP 1b; +#else /* SDRAM */ P0.L = lo(EBIU_SDGCTL); + P0.H = hi(EBIU_SDGCTL); R2 = [P0]; - R3.H = hi(SRFS); - R3.L = lo(SRFS); -#endif - R2 = R2|R3; + BITSET(R2, 24); /* SRFS enter self-refresh mode */ [P0] = R2; - ssync; -#if defined(CONFIG_BF54x) -.LSRR_MODE: + SSYNC; + + P0.L = lo(EBIU_SDSTAT); + P0.H = hi(EBIU_SDSTAT); +1: + R2 = w[P0]; + SSYNC; + cc = BITTST(R2, 1); /* SDSRA poll self-refresh status */ + if !cc jump 1b; + + P0.L = lo(EBIU_SDGCTL); + P0.H = hi(EBIU_SDGCTL); R2 = [P0]; - CC = BITTST(R2, 4); - if !CC JUMP .LSRR_MODE; + BITCLR(R2, 0); /* SCTLE disable CLKOUT */ + [P0] = R2; #endif RTS; + ENTRY(_unset_dram_srfs) /* set the dram out of self refresh mode */ -#if defined(CONFIG_BF54x) +#if defined(EBIU_RSTCTL) /* DDR */ P0.H = hi(EBIU_RSTCTL); P0.L = lo(EBIU_RSTCTL); R2 = [P0]; - R3.H = hi(SRREQ); - R3.L = lo(SRREQ); -#else + BITCLR(R2, 3); /* clear SRREQ bit */ + [P0] = R2; +#elif defined(EBIU_SDGCTL) /* SDRAM */ + + P0.L = lo(EBIU_SDGCTL); /* release CLKOUT from self-refresh */ P0.H = hi(EBIU_SDGCTL); - P0.L = lo(EBIU_SDGCTL); R2 = [P0]; - R3.H = hi(SRFS); - R3.L = lo(SRFS); + BITSET(R2, 0); /* SCTLE enable CLKOUT */ + [P0] = R2 + SSYNC; + + P0.L = lo(EBIU_SDGCTL); /* release SDRAM from self-refresh */ + P0.H = hi(EBIU_SDGCTL); + R2 = [P0]; + BITCLR(R2, 24); /* clear SRFS bit */ + [P0] = R2 #endif - R3 = ~R3; - R2 = R2&R3; - [P0] = R2; - ssync; + SSYNC; RTS; ENTRY(_set_sic_iwr) @@ -307,6 +325,11 @@ ENTRY(_set_rtc_istat) P0.L = lo(RTC_ISTAT); w[P0] = R0.L; SSYNC; +#elif (ANOMALY_05000371) + nop; + nop; + nop; + nop; #endif RTS; @@ -318,3 +341,508 @@ ENTRY(_test_pll_locked) CC = BITTST(R0,5); IF !CC JUMP 1b; RTS; + +.section .text + + +ENTRY(_do_hibernate) + [--SP] = ( R7:0, P5:0 ); + [--SP] = RETS; + /* Save System MMRs */ + R2 = R0; + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + +#ifdef SIC_IMASK0 + PM_SYS_PUSH(SIC_IMASK0) +#endif +#ifdef SIC_IMASK1 + PM_SYS_PUSH(SIC_IMASK1) +#endif +#ifdef SIC_IMASK2 + PM_SYS_PUSH(SIC_IMASK2) +#endif +#ifdef SIC_IMASK + PM_SYS_PUSH(SIC_IMASK) +#endif +#ifdef SICA_IMASK0 + PM_SYS_PUSH(SICA_IMASK0) +#endif +#ifdef SICA_IMASK1 + PM_SYS_PUSH(SICA_IMASK1) +#endif +#ifdef SIC_IAR2 + PM_SYS_PUSH(SIC_IAR0) + PM_SYS_PUSH(SIC_IAR1) + PM_SYS_PUSH(SIC_IAR2) +#endif +#ifdef SIC_IAR3 + PM_SYS_PUSH(SIC_IAR3) +#endif +#ifdef SIC_IAR4 + PM_SYS_PUSH(SIC_IAR4) + PM_SYS_PUSH(SIC_IAR5) + PM_SYS_PUSH(SIC_IAR6) +#endif +#ifdef SIC_IAR7 + PM_SYS_PUSH(SIC_IAR7) +#endif +#ifdef SIC_IAR8 + PM_SYS_PUSH(SIC_IAR8) + PM_SYS_PUSH(SIC_IAR9) + PM_SYS_PUSH(SIC_IAR10) + PM_SYS_PUSH(SIC_IAR11) +#endif + +#ifdef SICA_IAR0 + PM_SYS_PUSH(SICA_IAR0) + PM_SYS_PUSH(SICA_IAR1) + PM_SYS_PUSH(SICA_IAR2) + PM_SYS_PUSH(SICA_IAR3) + PM_SYS_PUSH(SICA_IAR4) + PM_SYS_PUSH(SICA_IAR5) + PM_SYS_PUSH(SICA_IAR6) + PM_SYS_PUSH(SICA_IAR7) +#endif + +#ifdef SIC_IWR + PM_SYS_PUSH(SIC_IWR) +#endif +#ifdef SIC_IWR0 + PM_SYS_PUSH(SIC_IWR0) +#endif +#ifdef SIC_IWR1 + PM_SYS_PUSH(SIC_IWR1) +#endif +#ifdef SIC_IWR2 + PM_SYS_PUSH(SIC_IWR2) +#endif +#ifdef SICA_IWR0 + PM_SYS_PUSH(SICA_IWR0) +#endif +#ifdef SICA_IWR1 + PM_SYS_PUSH(SICA_IWR1) +#endif + +#ifdef PINT0_ASSIGN + PM_SYS_PUSH(PINT0_ASSIGN) + PM_SYS_PUSH(PINT1_ASSIGN) + PM_SYS_PUSH(PINT2_ASSIGN) + PM_SYS_PUSH(PINT3_ASSIGN) +#endif + + PM_SYS_PUSH(EBIU_AMBCTL0) + PM_SYS_PUSH(EBIU_AMBCTL1) + PM_SYS_PUSH16(EBIU_AMGCTL) + +#ifdef EBIU_FCTL + PM_SYS_PUSH(EBIU_MBSCTL) + PM_SYS_PUSH(EBIU_MODE) + PM_SYS_PUSH(EBIU_FCTL) +#endif + + PM_SYS_PUSH16(SYSCR) + + /* Save Core MMRs */ + P0.H = hi(SRAM_BASE_ADDRESS); + P0.L = lo(SRAM_BASE_ADDRESS); + + PM_PUSH(DMEM_CONTROL) + PM_PUSH(DCPLB_ADDR0) + PM_PUSH(DCPLB_ADDR1) + PM_PUSH(DCPLB_ADDR2) + PM_PUSH(DCPLB_ADDR3) + PM_PUSH(DCPLB_ADDR4) + PM_PUSH(DCPLB_ADDR5) + PM_PUSH(DCPLB_ADDR6) + PM_PUSH(DCPLB_ADDR7) + PM_PUSH(DCPLB_ADDR8) + PM_PUSH(DCPLB_ADDR9) + PM_PUSH(DCPLB_ADDR10) + PM_PUSH(DCPLB_ADDR11) + PM_PUSH(DCPLB_ADDR12) + PM_PUSH(DCPLB_ADDR13) + PM_PUSH(DCPLB_ADDR14) + PM_PUSH(DCPLB_ADDR15) + PM_PUSH(DCPLB_DATA0) + PM_PUSH(DCPLB_DATA1) + PM_PUSH(DCPLB_DATA2) + PM_PUSH(DCPLB_DATA3) + PM_PUSH(DCPLB_DATA4) + PM_PUSH(DCPLB_DATA5) + PM_PUSH(DCPLB_DATA6) + PM_PUSH(DCPLB_DATA7) + PM_PUSH(DCPLB_DATA8) + PM_PUSH(DCPLB_DATA9) + PM_PUSH(DCPLB_DATA10) + PM_PUSH(DCPLB_DATA11) + PM_PUSH(DCPLB_DATA12) + PM_PUSH(DCPLB_DATA13) + PM_PUSH(DCPLB_DATA14) + PM_PUSH(DCPLB_DATA15) + PM_PUSH(IMEM_CONTROL) + PM_PUSH(ICPLB_ADDR0) + PM_PUSH(ICPLB_ADDR1) + PM_PUSH(ICPLB_ADDR2) + PM_PUSH(ICPLB_ADDR3) + PM_PUSH(ICPLB_ADDR4) + PM_PUSH(ICPLB_ADDR5) + PM_PUSH(ICPLB_ADDR6) + PM_PUSH(ICPLB_ADDR7) + PM_PUSH(ICPLB_ADDR8) + PM_PUSH(ICPLB_ADDR9) + PM_PUSH(ICPLB_ADDR10) + PM_PUSH(ICPLB_ADDR11) + PM_PUSH(ICPLB_ADDR12) + PM_PUSH(ICPLB_ADDR13) + PM_PUSH(ICPLB_ADDR14) + PM_PUSH(ICPLB_ADDR15) + PM_PUSH(ICPLB_DATA0) + PM_PUSH(ICPLB_DATA1) + PM_PUSH(ICPLB_DATA2) + PM_PUSH(ICPLB_DATA3) + PM_PUSH(ICPLB_DATA4) + PM_PUSH(ICPLB_DATA5) + PM_PUSH(ICPLB_DATA6) + PM_PUSH(ICPLB_DATA7) + PM_PUSH(ICPLB_DATA8) + PM_PUSH(ICPLB_DATA9) + PM_PUSH(ICPLB_DATA10) + PM_PUSH(ICPLB_DATA11) + PM_PUSH(ICPLB_DATA12) + PM_PUSH(ICPLB_DATA13) + PM_PUSH(ICPLB_DATA14) + PM_PUSH(ICPLB_DATA15) + PM_PUSH(EVT0) + PM_PUSH(EVT1) + PM_PUSH(EVT2) + PM_PUSH(EVT3) + PM_PUSH(EVT4) + PM_PUSH(EVT5) + PM_PUSH(EVT6) + PM_PUSH(EVT7) + PM_PUSH(EVT8) + PM_PUSH(EVT9) + PM_PUSH(EVT10) + PM_PUSH(EVT11) + PM_PUSH(EVT12) + PM_PUSH(EVT13) + PM_PUSH(EVT14) + PM_PUSH(EVT15) + PM_PUSH(IMASK) + PM_PUSH(ILAT) + PM_PUSH(IPRIO) + PM_PUSH(TCNTL) + PM_PUSH(TPERIOD) + PM_PUSH(TSCALE) + PM_PUSH(TCOUNT) + PM_PUSH(TBUFCTL) + + /* Save Core Registers */ + [--sp] = SYSCFG; + [--sp] = ( R7:0, P5:0 ); + [--sp] = fp; + [--sp] = usp; + + [--sp] = i0; + [--sp] = i1; + [--sp] = i2; + [--sp] = i3; + + [--sp] = m0; + [--sp] = m1; + [--sp] = m2; + [--sp] = m3; + + [--sp] = l0; + [--sp] = l1; + [--sp] = l2; + [--sp] = l3; + + [--sp] = b0; + [--sp] = b1; + [--sp] = b2; + [--sp] = b3; + [--sp] = a0.x; + [--sp] = a0.w; + [--sp] = a1.x; + [--sp] = a1.w; + + [--sp] = LC0; + [--sp] = LC1; + [--sp] = LT0; + [--sp] = LT1; + [--sp] = LB0; + [--sp] = LB1; + + [--sp] = ASTAT; + [--sp] = CYCLES; + [--sp] = CYCLES2; + + [--sp] = RETS; + r0 = RETI; + [--sp] = r0; + [--sp] = RETX; + [--sp] = RETN; + [--sp] = RETE; + [--sp] = SEQSTAT; + + /* Save Magic, return address and Stack Pointer */ + P0.H = 0; + P0.L = 0; + R0.H = 0xDEAD; /* Hibernate Magic */ + R0.L = 0xBEEF; + [P0++] = R0; /* Store Hibernate Magic */ + R0.H = pm_resume_here; + R0.L = pm_resume_here; + [P0++] = R0; /* Save Return Address */ + [P0++] = SP; /* Save Stack Pointer */ + P0.H = _hibernate_mode; + P0.L = _hibernate_mode; + R0 = R2; + call (P0); /* Goodbye */ + +pm_resume_here: + + /* Restore Core Registers */ + SEQSTAT = [sp++]; + RETE = [sp++]; + RETN = [sp++]; + RETX = [sp++]; + r0 = [sp++]; + RETI = r0; + RETS = [sp++]; + + CYCLES2 = [sp++]; + CYCLES = [sp++]; + ASTAT = [sp++]; + + LB1 = [sp++]; + LB0 = [sp++]; + LT1 = [sp++]; + LT0 = [sp++]; + LC1 = [sp++]; + LC0 = [sp++]; + + a1.w = [sp++]; + a1.x = [sp++]; + a0.w = [sp++]; + a0.x = [sp++]; + b3 = [sp++]; + b2 = [sp++]; + b1 = [sp++]; + b0 = [sp++]; + + l3 = [sp++]; + l2 = [sp++]; + l1 = [sp++]; + l0 = [sp++]; + + m3 = [sp++]; + m2 = [sp++]; + m1 = [sp++]; + m0 = [sp++]; + + i3 = [sp++]; + i2 = [sp++]; + i1 = [sp++]; + i0 = [sp++]; + + usp = [sp++]; + fp = [sp++]; + + ( R7 : 0, P5 : 0) = [ SP ++ ]; + SYSCFG = [sp++]; + + /* Restore Core MMRs */ + + PM_POP(TBUFCTL) + PM_POP(TCOUNT) + PM_POP(TSCALE) + PM_POP(TPERIOD) + PM_POP(TCNTL) + PM_POP(IPRIO) + PM_POP(ILAT) + PM_POP(IMASK) + PM_POP(EVT15) + PM_POP(EVT14) + PM_POP(EVT13) + PM_POP(EVT12) + PM_POP(EVT11) + PM_POP(EVT10) + PM_POP(EVT9) + PM_POP(EVT8) + PM_POP(EVT7) + PM_POP(EVT6) + PM_POP(EVT5) + PM_POP(EVT4) + PM_POP(EVT3) + PM_POP(EVT2) + PM_POP(EVT1) + PM_POP(EVT0) + PM_POP(ICPLB_DATA15) + PM_POP(ICPLB_DATA14) + PM_POP(ICPLB_DATA13) + PM_POP(ICPLB_DATA12) + PM_POP(ICPLB_DATA11) + PM_POP(ICPLB_DATA10) + PM_POP(ICPLB_DATA9) + PM_POP(ICPLB_DATA8) + PM_POP(ICPLB_DATA7) + PM_POP(ICPLB_DATA6) + PM_POP(ICPLB_DATA5) + PM_POP(ICPLB_DATA4) + PM_POP(ICPLB_DATA3) + PM_POP(ICPLB_DATA2) + PM_POP(ICPLB_DATA1) + PM_POP(ICPLB_DATA0) + PM_POP(ICPLB_ADDR15) + PM_POP(ICPLB_ADDR14) + PM_POP(ICPLB_ADDR13) + PM_POP(ICPLB_ADDR12) + PM_POP(ICPLB_ADDR11) + PM_POP(ICPLB_ADDR10) + PM_POP(ICPLB_ADDR9) + PM_POP(ICPLB_ADDR8) + PM_POP(ICPLB_ADDR7) + PM_POP(ICPLB_ADDR6) + PM_POP(ICPLB_ADDR5) + PM_POP(ICPLB_ADDR4) + PM_POP(ICPLB_ADDR3) + PM_POP(ICPLB_ADDR2) + PM_POP(ICPLB_ADDR1) + PM_POP(ICPLB_ADDR0) + PM_POP(IMEM_CONTROL) + PM_POP(DCPLB_DATA15) + PM_POP(DCPLB_DATA14) + PM_POP(DCPLB_DATA13) + PM_POP(DCPLB_DATA12) + PM_POP(DCPLB_DATA11) + PM_POP(DCPLB_DATA10) + PM_POP(DCPLB_DATA9) + PM_POP(DCPLB_DATA8) + PM_POP(DCPLB_DATA7) + PM_POP(DCPLB_DATA6) + PM_POP(DCPLB_DATA5) + PM_POP(DCPLB_DATA4) + PM_POP(DCPLB_DATA3) + PM_POP(DCPLB_DATA2) + PM_POP(DCPLB_DATA1) + PM_POP(DCPLB_DATA0) + PM_POP(DCPLB_ADDR15) + PM_POP(DCPLB_ADDR14) + PM_POP(DCPLB_ADDR13) + PM_POP(DCPLB_ADDR12) + PM_POP(DCPLB_ADDR11) + PM_POP(DCPLB_ADDR10) + PM_POP(DCPLB_ADDR9) + PM_POP(DCPLB_ADDR8) + PM_POP(DCPLB_ADDR7) + PM_POP(DCPLB_ADDR6) + PM_POP(DCPLB_ADDR5) + PM_POP(DCPLB_ADDR4) + PM_POP(DCPLB_ADDR3) + PM_POP(DCPLB_ADDR2) + PM_POP(DCPLB_ADDR1) + PM_POP(DCPLB_ADDR0) + PM_POP(DMEM_CONTROL) + + /* Restore System MMRs */ + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + PM_SYS_POP16(SYSCR) + +#ifdef EBIU_FCTL + PM_SYS_POP(EBIU_FCTL) + PM_SYS_POP(EBIU_MODE) + PM_SYS_POP(EBIU_MBSCTL) +#endif + PM_SYS_POP16(EBIU_AMGCTL) + PM_SYS_POP(EBIU_AMBCTL1) + PM_SYS_POP(EBIU_AMBCTL0) + +#ifdef PINT0_ASSIGN + PM_SYS_POP(PINT3_ASSIGN) + PM_SYS_POP(PINT2_ASSIGN) + PM_SYS_POP(PINT1_ASSIGN) + PM_SYS_POP(PINT0_ASSIGN) +#endif + +#ifdef SICA_IWR1 + PM_SYS_POP(SICA_IWR1) +#endif +#ifdef SICA_IWR0 + PM_SYS_POP(SICA_IWR0) +#endif +#ifdef SIC_IWR2 + PM_SYS_POP(SIC_IWR2) +#endif +#ifdef SIC_IWR1 + PM_SYS_POP(SIC_IWR1) +#endif +#ifdef SIC_IWR0 + PM_SYS_POP(SIC_IWR0) +#endif +#ifdef SIC_IWR + PM_SYS_POP(SIC_IWR) +#endif + +#ifdef SICA_IAR0 + PM_SYS_POP(SICA_IAR7) + PM_SYS_POP(SICA_IAR6) + PM_SYS_POP(SICA_IAR5) + PM_SYS_POP(SICA_IAR4) + PM_SYS_POP(SICA_IAR3) + PM_SYS_POP(SICA_IAR2) + PM_SYS_POP(SICA_IAR1) + PM_SYS_POP(SICA_IAR0) +#endif + +#ifdef SIC_IAR8 + PM_SYS_POP(SIC_IAR11) + PM_SYS_POP(SIC_IAR10) + PM_SYS_POP(SIC_IAR9) + PM_SYS_POP(SIC_IAR8) +#endif +#ifdef SIC_IAR7 + PM_SYS_POP(SIC_IAR7) +#endif +#ifdef SIC_IAR6 + PM_SYS_POP(SIC_IAR6) + PM_SYS_POP(SIC_IAR5) + PM_SYS_POP(SIC_IAR4) +#endif +#ifdef SIC_IAR3 + PM_SYS_POP(SIC_IAR3) +#endif +#ifdef SIC_IAR2 + PM_SYS_POP(SIC_IAR2) + PM_SYS_POP(SIC_IAR1) + PM_SYS_POP(SIC_IAR0) +#endif +#ifdef SICA_IMASK1 + PM_SYS_POP(SICA_IMASK1) +#endif +#ifdef SICA_IMASK0 + PM_SYS_POP(SICA_IMASK0) +#endif +#ifdef SIC_IMASK + PM_SYS_POP(SIC_IMASK) +#endif +#ifdef SIC_IMASK2 + PM_SYS_POP(SIC_IMASK2) +#endif +#ifdef SIC_IMASK1 + PM_SYS_POP(SIC_IMASK1) +#endif +#ifdef SIC_IMASK0 + PM_SYS_POP(SIC_IMASK0) +#endif + + [--sp] = RETI; /* Clear Global Interrupt Disable */ + SP += 4; + + RETS = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c index 0be805ca423f..4fe6a2366b13 100644 --- a/arch/blackfin/mach-common/pm.c +++ b/arch/blackfin/mach-common/pm.c @@ -38,8 +38,9 @@ #include #include -#include #include +#include +#include #ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_H #define WAKEUP_TYPE PM_WAKE_HIGH @@ -61,16 +62,17 @@ #define WAKEUP_TYPE PM_WAKE_BOTH_EDGES #endif + void bfin_pm_suspend_standby_enter(void) { + unsigned long flags; + #ifdef CONFIG_PM_WAKEUP_BY_GPIO gpio_pm_wakeup_request(CONFIG_PM_WAKEUP_GPIO_NUMBER, WAKEUP_TYPE); #endif - u32 flags; - local_irq_save(flags); - bfin_pm_setup(); + bfin_pm_standby_setup(); #ifdef CONFIG_PM_BFIN_SLEEP_DEEPER sleep_deeper(bfin_sic_iwr[0], bfin_sic_iwr[1], bfin_sic_iwr[2]); @@ -78,7 +80,7 @@ void bfin_pm_suspend_standby_enter(void) sleep_mode(bfin_sic_iwr[0], bfin_sic_iwr[1], bfin_sic_iwr[2]); #endif - bfin_pm_restore(); + bfin_pm_standby_restore(); #if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561) bfin_write_SIC_IWR0(IWR_ENABLE_ALL); @@ -93,6 +95,195 @@ void bfin_pm_suspend_standby_enter(void) local_irq_restore(flags); } +int bf53x_suspend_l1_mem(unsigned char *memptr) +{ + dma_memcpy(memptr, (const void *) L1_CODE_START, L1_CODE_LENGTH); + dma_memcpy(memptr + L1_CODE_LENGTH, (const void *) L1_DATA_A_START, + L1_DATA_A_LENGTH); + dma_memcpy(memptr + L1_CODE_LENGTH + L1_DATA_A_LENGTH, + (const void *) L1_DATA_B_START, L1_DATA_B_LENGTH); + memcpy(memptr + L1_CODE_LENGTH + L1_DATA_A_LENGTH + + L1_DATA_B_LENGTH, (const void *) L1_SCRATCH_START, + L1_SCRATCH_LENGTH); + + return 0; +} + +int bf53x_resume_l1_mem(unsigned char *memptr) +{ + dma_memcpy((void *) L1_CODE_START, memptr, L1_CODE_LENGTH); + dma_memcpy((void *) L1_DATA_A_START, memptr + L1_CODE_LENGTH, + L1_DATA_A_LENGTH); + dma_memcpy((void *) L1_DATA_B_START, memptr + L1_CODE_LENGTH + + L1_DATA_A_LENGTH, L1_DATA_B_LENGTH); + memcpy((void *) L1_SCRATCH_START, memptr + L1_CODE_LENGTH + + L1_DATA_A_LENGTH + L1_DATA_B_LENGTH, L1_SCRATCH_LENGTH); + + return 0; +} + +#ifdef CONFIG_BFIN_WB +static void flushinv_all_dcache(void) +{ + u32 way, bank, subbank, set; + u32 status, addr; + u32 dmem_ctl = bfin_read_DMEM_CONTROL(); + + for (bank = 0; bank < 2; ++bank) { + if (!(dmem_ctl & (1 << (DMC1_P - bank)))) + continue; + + for (way = 0; way < 2; ++way) + for (subbank = 0; subbank < 4; ++subbank) + for (set = 0; set < 64; ++set) { + + bfin_write_DTEST_COMMAND( + way << 26 | + bank << 23 | + subbank << 16 | + set << 5 + ); + CSYNC(); + status = bfin_read_DTEST_DATA0(); + + /* only worry about valid/dirty entries */ + if ((status & 0x3) != 0x3) + continue; + + /* construct the address using the tag */ + addr = (status & 0xFFFFC800) | (subbank << 12) | (set << 5); + + /* flush it */ + __asm__ __volatile__("FLUSHINV[%0];" : : "a"(addr)); + } + } +} +#endif + +static inline void dcache_disable(void) +{ +#ifdef CONFIG_BFIN_DCACHE + unsigned long ctrl; + +#ifdef CONFIG_BFIN_WB + flushinv_all_dcache(); +#endif + SSYNC(); + ctrl = bfin_read_DMEM_CONTROL(); + ctrl &= ~ENDCPLB; + bfin_write_DMEM_CONTROL(ctrl); + SSYNC(); +#endif +} + +static inline void dcache_enable(void) +{ +#ifdef CONFIG_BFIN_DCACHE + unsigned long ctrl; + SSYNC(); + ctrl = bfin_read_DMEM_CONTROL(); + ctrl |= ENDCPLB; + bfin_write_DMEM_CONTROL(ctrl); + SSYNC(); +#endif +} + +static inline void icache_disable(void) +{ +#ifdef CONFIG_BFIN_ICACHE + unsigned long ctrl; + SSYNC(); + ctrl = bfin_read_IMEM_CONTROL(); + ctrl &= ~ENICPLB; + bfin_write_IMEM_CONTROL(ctrl); + SSYNC(); +#endif +} + +static inline void icache_enable(void) +{ +#ifdef CONFIG_BFIN_ICACHE + unsigned long ctrl; + SSYNC(); + ctrl = bfin_read_IMEM_CONTROL(); + ctrl |= ENICPLB; + bfin_write_IMEM_CONTROL(ctrl); + SSYNC(); +#endif +} + +int bfin_pm_suspend_mem_enter(void) +{ + unsigned long flags; + int wakeup, ret; + + unsigned char *memptr = kmalloc(L1_CODE_LENGTH + L1_DATA_A_LENGTH + + L1_DATA_B_LENGTH + L1_SCRATCH_LENGTH, + GFP_KERNEL); + + if (memptr == NULL) { + panic("bf53x_suspend_l1_mem malloc failed"); + return -ENOMEM; + } + + wakeup = bfin_read_VR_CTL() & ~FREQ; + wakeup |= SCKELOW; + + /* FIXME: merge this somehow with set_irq_wake */ +#ifdef CONFIG_PM_BFIN_WAKE_RTC + wakeup |= WAKE; +#endif +#ifdef CONFIG_PM_BFIN_WAKE_PH6 + wakeup |= PHYWE; +#endif +#ifdef CONFIG_PM_BFIN_WAKE_CAN + wakeup |= CANWE; +#endif +#ifdef CONFIG_PM_BFIN_WAKE_GP + wakeup |= GPWE; +#endif +#ifdef CONFIG_PM_BFIN_WAKE_USB + wakeup |= USBWE; +#endif +#ifdef CONFIG_PM_BFIN_WAKE_KEYPAD + wakeup |= KPADWE; +#endif +#ifdef CONFIG_PM_BFIN_WAKE_ROTARY + wakeup |= ROTWE; +#endif + + local_irq_save(flags); + + ret = blackfin_dma_suspend(); + + if (ret) { + local_irq_restore(flags); + kfree(memptr); + return ret; + } + + bfin_gpio_pm_hibernate_suspend(); + + dcache_disable(); + icache_disable(); + bf53x_suspend_l1_mem(memptr); + + do_hibernate(wakeup); /* Goodbye */ + + bf53x_resume_l1_mem(memptr); + + icache_enable(); + dcache_enable(); + + bfin_gpio_pm_hibernate_restore(); + blackfin_dma_resume(); + + local_irq_restore(flags); + kfree(memptr); + + return 0; +} + /* * bfin_pm_valid - Tell the PM core that we only support the standby sleep * state @@ -101,7 +292,24 @@ void bfin_pm_suspend_standby_enter(void) */ static int bfin_pm_valid(suspend_state_t state) { - return (state == PM_SUSPEND_STANDBY); + return (state == PM_SUSPEND_STANDBY +#ifndef BF533_FAMILY + /* + * On BF533/2/1: + * If we enter Hibernate the SCKE Pin is driven Low, + * so that the SDRAM enters Self Refresh Mode. + * However when the reset sequence that follows hibernate + * state is executed, SCKE is driven High, taking the + * SDRAM out of Self Refresh. + * + * If you reconfigure and access the SDRAM "very quickly", + * you are likely to avoid errors, otherwise the SDRAM + * start losing its contents. + * An external HW workaround is possible using logic gates. + */ + || state == PM_SUSPEND_MEM +#endif + ); } /* @@ -115,10 +323,9 @@ static int bfin_pm_enter(suspend_state_t state) case PM_SUSPEND_STANDBY: bfin_pm_suspend_standby_enter(); break; - case PM_SUSPEND_MEM: - return -ENOTSUPP; - + bfin_pm_suspend_mem_enter(); + break; default: return -EINVAL; } diff --git a/include/asm-blackfin/dma.h b/include/asm-blackfin/dma.h index c0d5259e315b..3cd4b522aa3f 100644 --- a/include/asm-blackfin/dma.h +++ b/include/asm-blackfin/dma.h @@ -144,8 +144,16 @@ struct dma_channel { void *data; unsigned int dma_enable_flag; unsigned int loopback_flag; +#ifdef CONFIG_PM + unsigned short saved_peripheral_map; +#endif }; +#ifdef CONFIG_PM +int blackfin_dma_suspend(void); +void blackfin_dma_resume(void); +#endif + /******************************************************************************* * DMA API's *******************************************************************************/ diff --git a/include/asm-blackfin/dpmc.h b/include/asm-blackfin/dpmc.h index 7f34cd384f12..de28e6e018b3 100644 --- a/include/asm-blackfin/dpmc.h +++ b/include/asm-blackfin/dpmc.h @@ -7,63 +7,18 @@ #ifndef _BLACKFIN_DPMC_H_ #define _BLACKFIN_DPMC_H_ -#define SLEEP_MODE 1 -#define DEEP_SLEEP_MODE 2 -#define ACTIVE_PLL_DISABLED 3 -#define FULLON_MODE 4 -#define ACTIVE_PLL_ENABLED 5 -#define HIBERNATE_MODE 6 - -#define IOCTL_FULL_ON_MODE _IO('s', 0xA0) -#define IOCTL_ACTIVE_MODE _IO('s', 0xA1) -#define IOCTL_SLEEP_MODE _IO('s', 0xA2) -#define IOCTL_DEEP_SLEEP_MODE _IO('s', 0xA3) -#define IOCTL_HIBERNATE_MODE _IO('s', 0xA4) -#define IOCTL_CHANGE_FREQUENCY _IOW('s', 0xA5, unsigned long) -#define IOCTL_CHANGE_VOLTAGE _IOW('s', 0xA6, unsigned long) -#define IOCTL_SET_CCLK _IOW('s', 0xA7, unsigned long) -#define IOCTL_SET_SCLK _IOW('s', 0xA8, unsigned long) -#define IOCTL_GET_PLLSTATUS _IOW('s', 0xA9, unsigned long) -#define IOCTL_GET_CORECLOCK _IOW('s', 0xAA, unsigned long) -#define IOCTL_GET_SYSTEMCLOCK _IOW('s', 0xAB, unsigned long) -#define IOCTL_GET_VCO _IOW('s', 0xAC, unsigned long) -#define IOCTL_DISABLE_WDOG_TIMER _IO('s', 0xAD) -#define IOCTL_UNMASK_WDOG_WAKEUP_EVENT _IO('s',0xAE) -#define IOCTL_PROGRAM_WDOG_TIMER _IOW('s',0xAF,unsigned long) -#define IOCTL_CLEAR_WDOG_WAKEUP_EVENT _IO('s',0xB0) -#define IOCTL_SLEEP_DEEPER_MODE _IO('s',0xB1) - -#define DPMC_MINOR 254 - -#define ON 0 -#define OFF 1 - #ifdef __KERNEL__ +#ifndef __ASSEMBLY__ -unsigned long calc_volt(void); -int calc_vlev(int vlt); -unsigned long change_voltage(unsigned long volt); -int calc_msel(int vco_hz); -unsigned long change_frequency(unsigned long vco_mhz); -int set_pll_div(unsigned short sel, unsigned char flag); -int get_vco(void); -unsigned long change_system_clock(unsigned long clock); -unsigned long change_core_clock(unsigned long clock); -unsigned long get_pll_status(void); -void change_baud(int baud); -void fullon_mode(void); -void active_mode(void); void sleep_mode(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2); void deep_sleep(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2); void hibernate_mode(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2); void sleep_deeper(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2); -void program_wdog_timer(unsigned long); -void unmask_wdog_wakeup_evt(void); -void clear_wdog_wakeup_evt(void); -void disable_wdog_timer(void); +void do_hibernate(int wakeup); +void set_dram_srfs(void); +void unset_dram_srfs(void); -extern unsigned long get_cclk(void); -extern unsigned long get_sclk(void); +#define VRPAIR(vlev, freq) (((vlev) << 16) | ((freq) >> 16)) struct bfin_dpmc_platform_data { const unsigned int *tuple_tab; @@ -71,8 +26,33 @@ struct bfin_dpmc_platform_data { unsigned short vr_settling_time; /* in us */ }; -#define VRPAIR(vlev, freq) (((vlev) << 16) | ((freq) >> 16)) +#else + +#define PM_PUSH(x) \ + R0 = [P0 + (x - SRAM_BASE_ADDRESS)];\ + [--SP] = R0;\ + +#define PM_POP(x) \ + R0 = [SP++];\ + [P0 + (x - SRAM_BASE_ADDRESS)] = R0;\ + +#define PM_SYS_PUSH(x) \ + R0 = [P0 + (x - PLL_CTL)];\ + [--SP] = R0;\ + +#define PM_SYS_POP(x) \ + R0 = [SP++];\ + [P0 + (x - PLL_CTL)] = R0;\ + +#define PM_SYS_PUSH16(x) \ + R0 = w[P0 + (x - PLL_CTL)];\ + [--SP] = R0;\ + +#define PM_SYS_POP16(x) \ + R0 = [SP++];\ + w[P0 + (x - PLL_CTL)] = R0;\ +#endif #endif /* __KERNEL__ */ #endif /*_BLACKFIN_DPMC_H_*/ diff --git a/include/asm-blackfin/gpio.h b/include/asm-blackfin/gpio.h index ff95e9d88342..168f1251eb4d 100644 --- a/include/asm-blackfin/gpio.h +++ b/include/asm-blackfin/gpio.h @@ -376,8 +376,12 @@ struct gpio_port_t { #endif #ifdef CONFIG_PM -unsigned int bfin_pm_setup(void); -void bfin_pm_restore(void); + +unsigned int bfin_pm_standby_setup(void); +void bfin_pm_standby_restore(void); + +void bfin_gpio_pm_hibernate_restore(void); +void bfin_gpio_pm_hibernate_suspend(void); #ifndef CONFIG_BF54x #define PM_WAKE_RISING 0x1 @@ -392,17 +396,8 @@ void gpio_pm_wakeup_free(unsigned gpio); struct gpio_port_s { unsigned short data; - unsigned short data_clear; - unsigned short data_set; - unsigned short toggle; unsigned short maska; - unsigned short maska_clear; - unsigned short maska_set; - unsigned short maska_toggle; unsigned short maskb; - unsigned short maskb_clear; - unsigned short maskb_set; - unsigned short maskb_toggle; unsigned short dir; unsigned short polar; unsigned short edge; @@ -411,10 +406,10 @@ struct gpio_port_s { unsigned short fer; unsigned short reserved; + unsigned short mux; }; #endif /*CONFIG_BF54x*/ #endif /*CONFIG_PM*/ - /*********************************************************** * * FUNCTIONS: Blackfin GPIO Driver diff --git a/include/asm-blackfin/mach-bf548/gpio.h b/include/asm-blackfin/mach-bf548/gpio.h index cb8b0f15c9a6..bba82dc75f16 100644 --- a/include/asm-blackfin/mach-bf548/gpio.h +++ b/include/asm-blackfin/mach-bf548/gpio.h @@ -209,3 +209,11 @@ struct gpio_port_t { unsigned short dummy7; unsigned int port_mux; }; + +struct gpio_port_s { + unsigned short fer; + unsigned short data; + unsigned short dir; + unsigned short inen; + unsigned int mux; +}; -- cgit v1.2.3 From a312b37b2a212fd2e227d1d6321f903b91b65ec7 Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Tue, 8 Jul 2008 15:06:23 -0700 Subject: x86/paravirt: call paravirt_pagetable_setup_{start, done} Call paravirt_pagetable_setup_{start,done} These paravirt_ops functions were not being called on x86_64. Signed-off-by: Eduardo Habkost Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/kernel/paravirt.c | 4 ++++ arch/x86/kernel/setup.c | 2 ++ arch/x86/xen/enlighten.c | 4 ++++ include/asm-x86/pgtable.h | 18 ++++++++++++++++++ include/asm-x86/pgtable_32.h | 15 --------------- 5 files changed, 28 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index e0f571d58c19..2963ab5d91ee 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include @@ -373,6 +374,9 @@ struct pv_mmu_ops pv_mmu_ops = { #ifndef CONFIG_X86_64 .pagetable_setup_start = native_pagetable_setup_start, .pagetable_setup_done = native_pagetable_setup_done, +#else + .pagetable_setup_start = paravirt_nop, + .pagetable_setup_done = paravirt_nop, #endif .read_cr2 = native_read_cr2, diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 36c540d4ac4b..8ce6a91ce108 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -819,7 +819,9 @@ void __init setup_arch(char **cmdline_p) vmi_init(); #endif + paravirt_pagetable_setup_start(swapper_pg_dir); paging_init(); + paravirt_pagetable_setup_done(swapper_pg_dir); #ifdef CONFIG_X86_64 map_vsyscall(); diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index bb508456ef52..eaab6c9b4a84 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -841,6 +841,7 @@ static __init void xen_set_pte_init(pte_t *ptep, pte_t pte) static __init void xen_pagetable_setup_start(pgd_t *base) { +#ifdef CONFIG_X86_32 pgd_t *xen_pgd = (pgd_t *)xen_start_info->pt_base; int i; @@ -886,6 +887,7 @@ static __init void xen_pagetable_setup_start(pgd_t *base) /* Unpin initial Xen pagetable */ pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(xen_start_info->pt_base))); +#endif /* CONFIG_X86_32 */ } void xen_setup_shared_info(void) @@ -927,9 +929,11 @@ static __init void xen_pagetable_setup_done(pgd_t *base) xen_setup_shared_info(); +#ifdef CONFIG_X86_32 /* Actually pin the pagetable down, but we can't set PG_pinned yet because the page structures don't exist yet. */ pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(base))); +#endif } static __init void xen_post_allocator_init(void) diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index 49cbd76b9547..96aa76e691d8 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -302,6 +302,14 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, /* Install a pte for a particular vaddr in kernel space. */ void set_pte_vaddr(unsigned long vaddr, pte_t pte); +#ifdef CONFIG_X86_32 +extern void native_pagetable_setup_start(pgd_t *base); +extern void native_pagetable_setup_done(pgd_t *base); +#else +static inline void native_pagetable_setup_start(pgd_t *base) {} +static inline void native_pagetable_setup_done(pgd_t *base) {} +#endif + #ifdef CONFIG_PARAVIRT #include #else /* !CONFIG_PARAVIRT */ @@ -333,6 +341,16 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pte); #define pte_update(mm, addr, ptep) do { } while (0) #define pte_update_defer(mm, addr, ptep) do { } while (0) + +static inline void __init paravirt_pagetable_setup_start(pgd_t *base) +{ + native_pagetable_setup_start(base); +} + +static inline void __init paravirt_pagetable_setup_done(pgd_t *base) +{ + native_pagetable_setup_done(base); +} #endif /* CONFIG_PARAVIRT */ #endif /* __ASSEMBLY__ */ diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index ec871c420d7e..0611abf96a5e 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -171,21 +171,6 @@ do { \ */ #define update_mmu_cache(vma, address, pte) do { } while (0) -extern void native_pagetable_setup_start(pgd_t *base); -extern void native_pagetable_setup_done(pgd_t *base); - -#ifndef CONFIG_PARAVIRT -static inline void __init paravirt_pagetable_setup_start(pgd_t *base) -{ - native_pagetable_setup_start(base); -} - -static inline void __init paravirt_pagetable_setup_done(pgd_t *base) -{ - native_pagetable_setup_done(base); -} -#endif /* !CONFIG_PARAVIRT */ - #endif /* !__ASSEMBLY__ */ /* -- cgit v1.2.3 From 7c33b1e6ee26d67551109aca04d46544d0ce55b1 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:29 -0700 Subject: x86_64: unstatic get_local_pda This allows Xen's xen_cpu_up() to allocate a pda for the new CPU. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpboot.c | 2 +- include/asm-x86/smp.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 687376ab07e8..1deb3b624a79 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -768,7 +768,7 @@ static void __cpuinit do_fork_idle(struct work_struct *work) * * Must be called after the _cpu_pda pointer table is initialized. */ -static int __cpuinit get_local_pda(int cpu) +int __cpuinit get_local_pda(int cpu) { struct x8664_pda *oldpda, *newpda; unsigned long size = sizeof(struct x8664_pda); diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h index c2784b3e0b77..3c877f74f279 100644 --- a/include/asm-x86/smp.h +++ b/include/asm-x86/smp.h @@ -25,6 +25,8 @@ extern cpumask_t cpu_callin_map; extern void (*mtrr_hook)(void); extern void zap_low_mappings(void); +extern int __cpuinit get_local_pda(int cpu); + extern int smp_num_siblings; extern unsigned int num_processors; extern cpumask_t cpu_initialized; -- cgit v1.2.3 From ad55db9fed6d6cd09333045945cb03ba2c070085 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Tue, 8 Jul 2008 15:06:32 -0700 Subject: xen: add xen_arch_resume()/xen_timer_resume hook for ia64 support add xen_timer_resume() hook. Timer resume should be done after event channel is resumed. add xen_arch_resume() hook when ipi becomes usable after resume. After resume, some cpu specific resource must be reinitialized on ia64 that can't be set by another cpu. However available hooks is run once on only one cpu so that ipi has to be used. During stop_machine_run() ipi can't be used because interrupt is masked. So add another hook after stop_machine_run(). Another approach might be use resume hook which is run by device_resume(). However device_resume() may be executed on suspend error recovery path. So it is necessary to determine whether it is executed on real resume path or error recovery path. Signed-off-by: Isaku Yamahata Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/xen/suspend.c | 5 ++++- arch/x86/xen/xen-ops.h | 1 - drivers/xen/manage.c | 6 ++++-- include/xen/xen-ops.h | 3 +++ 4 files changed, 11 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c index 251669a932d4..2a234db5949b 100644 --- a/arch/x86/xen/suspend.c +++ b/arch/x86/xen/suspend.c @@ -38,8 +38,11 @@ void xen_post_suspend(int suspend_cancelled) xen_cpu_initialized_map = cpu_online_map; #endif xen_vcpu_restore(); - xen_timer_resume(); } } +void xen_arch_resume(void) +{ + /* nothing */ +} diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index 6f4b1045c1c2..77354d204257 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -37,7 +37,6 @@ void __init xen_time_init(void); unsigned long xen_get_wallclock(void); int xen_set_wallclock(unsigned long time); unsigned long long xen_sched_clock(void); -void xen_timer_resume(void); irqreturn_t xen_debug_interrupt(int irq, void *dev_id); diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 5b546e365f00..2bb268e4ac56 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -68,6 +68,7 @@ static int xen_suspend(void *data) if (!*cancelled) { xen_irq_resume(); xen_console_resume(); + xen_timer_resume(); } return 0; @@ -107,9 +108,10 @@ static void do_suspend(void) goto out; } - if (!cancelled) + if (!cancelled) { + xen_arch_resume(); xenbus_resume(); - else + } else xenbus_suspend_cancel(); device_resume(); diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h index a706d6a78960..883a21bba24b 100644 --- a/include/xen/xen-ops.h +++ b/include/xen/xen-ops.h @@ -11,4 +11,7 @@ void xen_post_suspend(int suspend_cancelled); void xen_mm_pin_all(void); void xen_mm_unpin_all(void); +void xen_timer_resume(void); +void xen_arch_resume(void); + #endif /* INCLUDE_XEN_OPS_H */ -- cgit v1.2.3 From 48b5db20621388582ca11ac3c61d3403966dbe51 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:34 -0700 Subject: xen64: define asm/xen/interface for 64-bit Copy 64-bit definitions of various interface structures into place. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/xen/mmu.h | 12 --- include/asm-x86/xen/interface.h | 139 ++++++++++++-------------------- include/asm-x86/xen/interface_32.h | 97 ++++++++++++++++++++++ include/asm-x86/xen/interface_64.h | 159 +++++++++++++++++++++++++++++++++++++ include/xen/interface/callback.h | 6 +- 5 files changed, 308 insertions(+), 105 deletions(-) create mode 100644 include/asm-x86/xen/interface_32.h create mode 100644 include/asm-x86/xen/interface_64.h (limited to 'include') diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h index 297bf9f5b8bc..7856e37f6044 100644 --- a/arch/x86/xen/mmu.h +++ b/arch/x86/xen/mmu.h @@ -10,18 +10,6 @@ enum pt_level { PT_PTE }; -/* - * Page-directory addresses above 4GB do not fit into architectural %cr3. - * When accessing %cr3, or equivalent field in vcpu_guest_context, guests - * must use the following accessor macros to pack/unpack valid MFNs. - * - * Note that Xen is using the fact that the pagetable base is always - * page-aligned, and putting the 12 MSB of the address into the 12 LSB - * of cr3. - */ -#define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20)) -#define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20)) - void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); diff --git a/include/asm-x86/xen/interface.h b/include/asm-x86/xen/interface.h index 6227000a1e84..9d810f2538a2 100644 --- a/include/asm-x86/xen/interface.h +++ b/include/asm-x86/xen/interface.h @@ -1,13 +1,13 @@ /****************************************************************************** * arch-x86_32.h * - * Guest OS interface to x86 32-bit Xen. + * Guest OS interface to x86 Xen. * * Copyright (c) 2004, K A Fraser */ -#ifndef __XEN_PUBLIC_ARCH_X86_32_H__ -#define __XEN_PUBLIC_ARCH_X86_32_H__ +#ifndef __ASM_X86_XEN_INTERFACE_H +#define __ASM_X86_XEN_INTERFACE_H #ifdef __XEN__ #define __DEFINE_GUEST_HANDLE(name, type) \ @@ -57,6 +57,17 @@ DEFINE_GUEST_HANDLE(long); DEFINE_GUEST_HANDLE(void); #endif +#ifndef HYPERVISOR_VIRT_START +#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START) +#endif + +#ifndef machine_to_phys_mapping +#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START) +#endif + +/* Maximum number of virtual CPUs in multi-processor guests. */ +#define MAX_VIRT_CPUS 32 + /* * SEGMENT DESCRIPTOR TABLES */ @@ -70,59 +81,22 @@ DEFINE_GUEST_HANDLE(void); #define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096) #define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8) -/* - * These flat segments are in the Xen-private section of every GDT. Since these - * are also present in the initial GDT, many OSes will be able to avoid - * installing their own GDT. - */ -#define FLAT_RING1_CS 0xe019 /* GDT index 259 */ -#define FLAT_RING1_DS 0xe021 /* GDT index 260 */ -#define FLAT_RING1_SS 0xe021 /* GDT index 260 */ -#define FLAT_RING3_CS 0xe02b /* GDT index 261 */ -#define FLAT_RING3_DS 0xe033 /* GDT index 262 */ -#define FLAT_RING3_SS 0xe033 /* GDT index 262 */ - -#define FLAT_KERNEL_CS FLAT_RING1_CS -#define FLAT_KERNEL_DS FLAT_RING1_DS -#define FLAT_KERNEL_SS FLAT_RING1_SS -#define FLAT_USER_CS FLAT_RING3_CS -#define FLAT_USER_DS FLAT_RING3_DS -#define FLAT_USER_SS FLAT_RING3_SS - -/* And the trap vector is... */ -#define TRAP_INSTR "int $0x82" - -/* - * Virtual addresses beyond this are not modifiable by guest OSes. The - * machine->physical mapping table starts at this address, read-only. - */ -#ifdef CONFIG_X86_PAE -#define __HYPERVISOR_VIRT_START 0xF5800000 -#else -#define __HYPERVISOR_VIRT_START 0xFC000000 -#endif - -#ifndef HYPERVISOR_VIRT_START -#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START) -#endif - -#ifndef machine_to_phys_mapping -#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START) -#endif - -/* Maximum number of virtual CPUs in multi-processor guests. */ -#define MAX_VIRT_CPUS 32 - -#ifndef __ASSEMBLY__ - /* * Send an array of these to HYPERVISOR_set_trap_table() + * The privilege level specifies which modes may enter a trap via a software + * interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate + * privilege levels as follows: + * Level == 0: Noone may enter + * Level == 1: Kernel may enter + * Level == 2: Kernel may enter + * Level == 3: Everyone may enter */ #define TI_GET_DPL(_ti) ((_ti)->flags & 3) #define TI_GET_IF(_ti) ((_ti)->flags & 4) #define TI_SET_DPL(_ti, _dpl) ((_ti)->flags |= (_dpl)) #define TI_SET_IF(_ti, _if) ((_ti)->flags |= ((!!(_if))<<2)) +#ifndef __ASSEMBLY__ struct trap_info { uint8_t vector; /* exception vector */ uint8_t flags; /* 0-3: privilege level; 4: clear event enable? */ @@ -131,32 +105,21 @@ struct trap_info { }; DEFINE_GUEST_HANDLE_STRUCT(trap_info); -struct cpu_user_regs { - uint32_t ebx; - uint32_t ecx; - uint32_t edx; - uint32_t esi; - uint32_t edi; - uint32_t ebp; - uint32_t eax; - uint16_t error_code; /* private */ - uint16_t entry_vector; /* private */ - uint32_t eip; - uint16_t cs; - uint8_t saved_upcall_mask; - uint8_t _pad0; - uint32_t eflags; /* eflags.IF == !saved_upcall_mask */ - uint32_t esp; - uint16_t ss, _pad1; - uint16_t es, _pad2; - uint16_t ds, _pad3; - uint16_t fs, _pad4; - uint16_t gs, _pad5; +struct arch_shared_info { + unsigned long max_pfn; /* max pfn that appears in table */ + /* Frame containing list of mfns containing list of mfns containing p2m. */ + unsigned long pfn_to_mfn_frame_list_list; + unsigned long nmi_reason; }; -DEFINE_GUEST_HANDLE_STRUCT(cpu_user_regs); +#endif /* !__ASSEMBLY__ */ -typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */ +#ifdef CONFIG_X86_32 +#include "interface_32.h" +#else +#include "interface_64.h" +#endif +#ifndef __ASSEMBLY__ /* * The following is all CPU context. Note that the fpu_ctxt block is filled * in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used. @@ -173,33 +136,29 @@ struct vcpu_guest_context { unsigned long ldt_base, ldt_ents; /* LDT (linear address, # ents) */ unsigned long gdt_frames[16], gdt_ents; /* GDT (machine frames, # ents) */ unsigned long kernel_ss, kernel_sp; /* Virtual TSS (only SS1/SP1) */ + /* NB. User pagetable on x86/64 is placed in ctrlreg[1]. */ unsigned long ctrlreg[8]; /* CR0-CR7 (control registers) */ unsigned long debugreg[8]; /* DB0-DB7 (debug registers) */ +#ifdef __i386__ unsigned long event_callback_cs; /* CS:EIP of event callback */ unsigned long event_callback_eip; unsigned long failsafe_callback_cs; /* CS:EIP of failsafe callback */ unsigned long failsafe_callback_eip; +#else + unsigned long event_callback_eip; + unsigned long failsafe_callback_eip; + unsigned long syscall_callback_eip; +#endif unsigned long vm_assist; /* VMASST_TYPE_* bitmap */ +#ifdef __x86_64__ + /* Segment base addresses. */ + uint64_t fs_base; + uint64_t gs_base_kernel; + uint64_t gs_base_user; +#endif }; DEFINE_GUEST_HANDLE_STRUCT(vcpu_guest_context); - -struct arch_shared_info { - unsigned long max_pfn; /* max pfn that appears in table */ - /* Frame containing list of mfns containing list of mfns containing p2m. */ - unsigned long pfn_to_mfn_frame_list_list; - unsigned long nmi_reason; -}; - -struct arch_vcpu_info { - unsigned long cr2; - unsigned long pad[5]; /* sizeof(struct vcpu_info) == 64 */ -}; - -struct xen_callback { - unsigned long cs; - unsigned long eip; -}; -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLY__ */ /* * Prefix forces emulation of some non-trapping instructions. @@ -213,4 +172,4 @@ struct xen_callback { #define XEN_CPUID XEN_EMULATE_PREFIX "cpuid" #endif -#endif +#endif /* __ASM_X86_XEN_INTERFACE_H */ diff --git a/include/asm-x86/xen/interface_32.h b/include/asm-x86/xen/interface_32.h new file mode 100644 index 000000000000..d8ac41d5db86 --- /dev/null +++ b/include/asm-x86/xen/interface_32.h @@ -0,0 +1,97 @@ +/****************************************************************************** + * arch-x86_32.h + * + * Guest OS interface to x86 32-bit Xen. + * + * Copyright (c) 2004, K A Fraser + */ + +#ifndef __ASM_X86_XEN_INTERFACE_32_H +#define __ASM_X86_XEN_INTERFACE_32_H + + +/* + * These flat segments are in the Xen-private section of every GDT. Since these + * are also present in the initial GDT, many OSes will be able to avoid + * installing their own GDT. + */ +#define FLAT_RING1_CS 0xe019 /* GDT index 259 */ +#define FLAT_RING1_DS 0xe021 /* GDT index 260 */ +#define FLAT_RING1_SS 0xe021 /* GDT index 260 */ +#define FLAT_RING3_CS 0xe02b /* GDT index 261 */ +#define FLAT_RING3_DS 0xe033 /* GDT index 262 */ +#define FLAT_RING3_SS 0xe033 /* GDT index 262 */ + +#define FLAT_KERNEL_CS FLAT_RING1_CS +#define FLAT_KERNEL_DS FLAT_RING1_DS +#define FLAT_KERNEL_SS FLAT_RING1_SS +#define FLAT_USER_CS FLAT_RING3_CS +#define FLAT_USER_DS FLAT_RING3_DS +#define FLAT_USER_SS FLAT_RING3_SS + +/* And the trap vector is... */ +#define TRAP_INSTR "int $0x82" + +/* + * Virtual addresses beyond this are not modifiable by guest OSes. The + * machine->physical mapping table starts at this address, read-only. + */ +#define __HYPERVISOR_VIRT_START 0xF5800000 + +#ifndef __ASSEMBLY__ + +struct cpu_user_regs { + uint32_t ebx; + uint32_t ecx; + uint32_t edx; + uint32_t esi; + uint32_t edi; + uint32_t ebp; + uint32_t eax; + uint16_t error_code; /* private */ + uint16_t entry_vector; /* private */ + uint32_t eip; + uint16_t cs; + uint8_t saved_upcall_mask; + uint8_t _pad0; + uint32_t eflags; /* eflags.IF == !saved_upcall_mask */ + uint32_t esp; + uint16_t ss, _pad1; + uint16_t es, _pad2; + uint16_t ds, _pad3; + uint16_t fs, _pad4; + uint16_t gs, _pad5; +}; +DEFINE_GUEST_HANDLE_STRUCT(cpu_user_regs); + +typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */ + +struct arch_vcpu_info { + unsigned long cr2; + unsigned long pad[5]; /* sizeof(struct vcpu_info) == 64 */ +}; + +struct xen_callback { + unsigned long cs; + unsigned long eip; +}; +typedef struct xen_callback xen_callback_t; + +#define XEN_CALLBACK(__cs, __eip) \ + ((struct xen_callback){ .cs = (__cs), .eip = (unsigned long)(__eip) }) +#endif /* !__ASSEMBLY__ */ + + +/* + * Page-directory addresses above 4GB do not fit into architectural %cr3. + * When accessing %cr3, or equivalent field in vcpu_guest_context, guests + * must use the following accessor macros to pack/unpack valid MFNs. + * + * Note that Xen is using the fact that the pagetable base is always + * page-aligned, and putting the 12 MSB of the address into the 12 LSB + * of cr3. + */ +#define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20)) +#define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20)) + +#endif /* __ASM_X86_XEN_INTERFACE_32_H */ diff --git a/include/asm-x86/xen/interface_64.h b/include/asm-x86/xen/interface_64.h new file mode 100644 index 000000000000..842266ce96e6 --- /dev/null +++ b/include/asm-x86/xen/interface_64.h @@ -0,0 +1,159 @@ +#ifndef __ASM_X86_XEN_INTERFACE_64_H +#define __ASM_X86_XEN_INTERFACE_64_H + +/* + * 64-bit segment selectors + * These flat segments are in the Xen-private section of every GDT. Since these + * are also present in the initial GDT, many OSes will be able to avoid + * installing their own GDT. + */ + +#define FLAT_RING3_CS32 0xe023 /* GDT index 260 */ +#define FLAT_RING3_CS64 0xe033 /* GDT index 261 */ +#define FLAT_RING3_DS32 0xe02b /* GDT index 262 */ +#define FLAT_RING3_DS64 0x0000 /* NULL selector */ +#define FLAT_RING3_SS32 0xe02b /* GDT index 262 */ +#define FLAT_RING3_SS64 0xe02b /* GDT index 262 */ + +#define FLAT_KERNEL_DS64 FLAT_RING3_DS64 +#define FLAT_KERNEL_DS32 FLAT_RING3_DS32 +#define FLAT_KERNEL_DS FLAT_KERNEL_DS64 +#define FLAT_KERNEL_CS64 FLAT_RING3_CS64 +#define FLAT_KERNEL_CS32 FLAT_RING3_CS32 +#define FLAT_KERNEL_CS FLAT_KERNEL_CS64 +#define FLAT_KERNEL_SS64 FLAT_RING3_SS64 +#define FLAT_KERNEL_SS32 FLAT_RING3_SS32 +#define FLAT_KERNEL_SS FLAT_KERNEL_SS64 + +#define FLAT_USER_DS64 FLAT_RING3_DS64 +#define FLAT_USER_DS32 FLAT_RING3_DS32 +#define FLAT_USER_DS FLAT_USER_DS64 +#define FLAT_USER_CS64 FLAT_RING3_CS64 +#define FLAT_USER_CS32 FLAT_RING3_CS32 +#define FLAT_USER_CS FLAT_USER_CS64 +#define FLAT_USER_SS64 FLAT_RING3_SS64 +#define FLAT_USER_SS32 FLAT_RING3_SS32 +#define FLAT_USER_SS FLAT_USER_SS64 + +#define __HYPERVISOR_VIRT_START 0xFFFF800000000000 +#define __HYPERVISOR_VIRT_END 0xFFFF880000000000 +#define __MACH2PHYS_VIRT_START 0xFFFF800000000000 +#define __MACH2PHYS_VIRT_END 0xFFFF804000000000 + +#ifndef HYPERVISOR_VIRT_START +#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START) +#define HYPERVISOR_VIRT_END mk_unsigned_long(__HYPERVISOR_VIRT_END) +#endif + +#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START) +#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END) +#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>3) +#ifndef machine_to_phys_mapping +#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START) +#endif + +/* + * int HYPERVISOR_set_segment_base(unsigned int which, unsigned long base) + * @which == SEGBASE_* ; @base == 64-bit base address + * Returns 0 on success. + */ +#define SEGBASE_FS 0 +#define SEGBASE_GS_USER 1 +#define SEGBASE_GS_KERNEL 2 +#define SEGBASE_GS_USER_SEL 3 /* Set user %gs specified in base[15:0] */ + +/* + * int HYPERVISOR_iret(void) + * All arguments are on the kernel stack, in the following format. + * Never returns if successful. Current kernel context is lost. + * The saved CS is mapped as follows: + * RING0 -> RING3 kernel mode. + * RING1 -> RING3 kernel mode. + * RING2 -> RING3 kernel mode. + * RING3 -> RING3 user mode. + * However RING0 indicates that the guest kernel should return to iteself + * directly with + * orb $3,1*8(%rsp) + * iretq + * If flags contains VGCF_in_syscall: + * Restore RAX, RIP, RFLAGS, RSP. + * Discard R11, RCX, CS, SS. + * Otherwise: + * Restore RAX, R11, RCX, CS:RIP, RFLAGS, SS:RSP. + * All other registers are saved on hypercall entry and restored to user. + */ +/* Guest exited in SYSCALL context? Return to guest with SYSRET? */ +#define _VGCF_in_syscall 8 +#define VGCF_in_syscall (1<<_VGCF_in_syscall) +#define VGCF_IN_SYSCALL VGCF_in_syscall + +#ifndef __ASSEMBLY__ + +struct iret_context { + /* Top of stack (%rsp at point of hypercall). */ + uint64_t rax, r11, rcx, flags, rip, cs, rflags, rsp, ss; + /* Bottom of iret stack frame. */ +}; + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) +/* Anonymous union includes both 32- and 64-bit names (e.g., eax/rax). */ +#define __DECL_REG(name) union { \ + uint64_t r ## name, e ## name; \ + uint32_t _e ## name; \ +} +#else +/* Non-gcc sources must always use the proper 64-bit name (e.g., rax). */ +#define __DECL_REG(name) uint64_t r ## name +#endif + +struct cpu_user_regs { + uint64_t r15; + uint64_t r14; + uint64_t r13; + uint64_t r12; + __DECL_REG(bp); + __DECL_REG(bx); + uint64_t r11; + uint64_t r10; + uint64_t r9; + uint64_t r8; + __DECL_REG(ax); + __DECL_REG(cx); + __DECL_REG(dx); + __DECL_REG(si); + __DECL_REG(di); + uint32_t error_code; /* private */ + uint32_t entry_vector; /* private */ + __DECL_REG(ip); + uint16_t cs, _pad0[1]; + uint8_t saved_upcall_mask; + uint8_t _pad1[3]; + __DECL_REG(flags); /* rflags.IF == !saved_upcall_mask */ + __DECL_REG(sp); + uint16_t ss, _pad2[3]; + uint16_t es, _pad3[3]; + uint16_t ds, _pad4[3]; + uint16_t fs, _pad5[3]; /* Non-zero => takes precedence over fs_base. */ + uint16_t gs, _pad6[3]; /* Non-zero => takes precedence over gs_base_usr. */ +}; +DEFINE_GUEST_HANDLE_STRUCT(cpu_user_regs); + +#undef __DECL_REG + +#define xen_pfn_to_cr3(pfn) ((unsigned long)(pfn) << 12) +#define xen_cr3_to_pfn(cr3) ((unsigned long)(cr3) >> 12) + +struct arch_vcpu_info { + unsigned long cr2; + unsigned long pad; /* sizeof(vcpu_info_t) == 64 */ +}; + +typedef unsigned long xen_callback_t; + +#define XEN_CALLBACK(__cs, __rip) \ + ((unsigned long)(__rip)) + +#endif /* !__ASSEMBLY__ */ + + +#endif /* __ASM_X86_XEN_INTERFACE_64_H */ diff --git a/include/xen/interface/callback.h b/include/xen/interface/callback.h index 4aadcba31af9..2ae3cd243264 100644 --- a/include/xen/interface/callback.h +++ b/include/xen/interface/callback.h @@ -82,9 +82,9 @@ */ #define CALLBACKOP_register 0 struct callback_register { - uint16_t type; - uint16_t flags; - struct xen_callback address; + uint16_t type; + uint16_t flags; + xen_callback_t address; }; /* -- cgit v1.2.3 From ca15f20f1126f897500ade892a2d598a08da1b56 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:36 -0700 Subject: xen: fix 64-bit hypercall variants 64-bit guests can pass 64-bit quantities in a single argument, so fix up the hypercalls. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- include/asm-x86/xen/hypercall.h | 60 +++++++++++++++++++++-------------------- 1 file changed, 31 insertions(+), 29 deletions(-) (limited to 'include') diff --git a/include/asm-x86/xen/hypercall.h b/include/asm-x86/xen/hypercall.h index 2a4f9b41d684..0551b9d82ec4 100644 --- a/include/asm-x86/xen/hypercall.h +++ b/include/asm-x86/xen/hypercall.h @@ -223,12 +223,12 @@ static inline int HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val, unsigned long flags) { - unsigned long pte_hi = 0; -#ifdef CONFIG_X86_PAE - pte_hi = new_val.pte_high; -#endif - return _hypercall4(int, update_va_mapping, va, - new_val.pte_low, pte_hi, flags); + if (sizeof(new_val) == sizeof(long)) + return _hypercall3(int, update_va_mapping, va, + new_val.pte, flags); + else + return _hypercall4(int, update_va_mapping, va, + new_val.pte, new_val.pte >> 32, flags); } static inline int @@ -281,12 +281,13 @@ static inline int HYPERVISOR_update_va_mapping_otherdomain(unsigned long va, pte_t new_val, unsigned long flags, domid_t domid) { - unsigned long pte_hi = 0; -#ifdef CONFIG_X86_PAE - pte_hi = new_val.pte_high; -#endif - return _hypercall5(int, update_va_mapping_otherdomain, va, - new_val.pte_low, pte_hi, flags, domid); + if (sizeof(new_val) == sizeof(long)) + return _hypercall4(int, update_va_mapping_otherdomain, va, + new_val.pte, flags, domid); + else + return _hypercall5(int, update_va_mapping_otherdomain, va, + new_val.pte, new_val.pte >> 32, + flags, domid); } static inline int @@ -327,14 +328,14 @@ MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va, { mcl->op = __HYPERVISOR_update_va_mapping; mcl->args[0] = va; -#ifdef CONFIG_X86_PAE - mcl->args[1] = new_val.pte_low; - mcl->args[2] = new_val.pte_high; -#else - mcl->args[1] = new_val.pte_low; - mcl->args[2] = 0; -#endif - mcl->args[3] = flags; + if (sizeof(new_val) == sizeof(long)) { + mcl->args[1] = new_val.pte; + mcl->args[2] = flags; + } else { + mcl->args[1] = new_val.pte; + mcl->args[2] = new_val.pte >> 32; + mcl->args[3] = flags; + } } static inline void @@ -354,15 +355,16 @@ MULTI_update_va_mapping_otherdomain(struct multicall_entry *mcl, unsigned long v { mcl->op = __HYPERVISOR_update_va_mapping_otherdomain; mcl->args[0] = va; -#ifdef CONFIG_X86_PAE - mcl->args[1] = new_val.pte_low; - mcl->args[2] = new_val.pte_high; -#else - mcl->args[1] = new_val.pte_low; - mcl->args[2] = 0; -#endif - mcl->args[3] = flags; - mcl->args[4] = domid; + if (sizeof(new_val) == sizeof(long)) { + mcl->args[1] = new_val.pte; + mcl->args[2] = flags; + mcl->args[3] = domid; + } else { + mcl->args[1] = new_val.pte; + mcl->args[2] = new_val.pte >> 32; + mcl->args[3] = flags; + mcl->args[4] = domid; + } } static inline void -- cgit v1.2.3 From e74359028d5489a281fb2c379a47b1d3cb14526e Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:37 -0700 Subject: xen64: fix calls into hypercall page The 64-bit calling convention for hypercalls uses different registers from 32-bit. Annoyingly, gcc's asm syntax doesn't have a way to specify one of the extra numeric reigisters in a constraint, so we must use explicitly placed register variables. Given that we have to do it for some args, may as well do it for all. Also fix syntax gcc generates for the call instruction itself. We need a plain direct call, but the asm expansion which works on 32-bit generates a rip-relative addressing mode in 64-bit, which is treated as an indirect call. The alternative is to pass the hypercall page offset into the asm, and have it add it to the hypercall page start address to generate the call. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- include/asm-x86/xen/hypercall.h | 170 ++++++++++++++++++++++++++++------------ 1 file changed, 122 insertions(+), 48 deletions(-) (limited to 'include') diff --git a/include/asm-x86/xen/hypercall.h b/include/asm-x86/xen/hypercall.h index 0551b9d82ec4..d0c5dedcb001 100644 --- a/include/asm-x86/xen/hypercall.h +++ b/include/asm-x86/xen/hypercall.h @@ -40,83 +40,157 @@ #include #include +/* + * The hypercall asms have to meet several constraints: + * - Work on 32- and 64-bit. + * The two architectures put their arguments in different sets of + * registers. + * + * - Work around asm syntax quirks + * It isn't possible to specify one of the rNN registers in a + * constraint, so we use explicit register variables to get the + * args into the right place. + * + * - Mark all registers as potentially clobbered + * Even unused parameters can be clobbered by the hypervisor, so we + * need to make sure gcc knows it. + * + * - Avoid compiler bugs. + * This is the tricky part. Because x86_32 has such a constrained + * register set, gcc versions below 4.3 have trouble generating + * code when all the arg registers and memory are trashed by the + * asm. There are syntactically simpler ways of achieving the + * semantics below, but they cause the compiler to crash. + * + * The only combination I found which works is: + * - assign the __argX variables first + * - list all actually used parameters as "+r" (__argX) + * - clobber the rest + * + * The result certainly isn't pretty, and it really shows up cpp's + * weakness as as macro language. Sorry. (But let's just give thanks + * there aren't more than 5 arguments...) + */ + extern struct { char _entry[32]; } hypercall_page[]; +#define __HYPERCALL "call hypercall_page+%c[offset]" +#define __HYPERCALL_ENTRY(x) \ + [offset] "i" (__HYPERVISOR_##x * sizeof(hypercall_page[0])) + +#ifdef CONFIG_X86_32 +#define __HYPERCALL_RETREG "eax" +#define __HYPERCALL_ARG1REG "ebx" +#define __HYPERCALL_ARG2REG "ecx" +#define __HYPERCALL_ARG3REG "edx" +#define __HYPERCALL_ARG4REG "esi" +#define __HYPERCALL_ARG5REG "edi" +#else +#define __HYPERCALL_RETREG "rax" +#define __HYPERCALL_ARG1REG "rdi" +#define __HYPERCALL_ARG2REG "rsi" +#define __HYPERCALL_ARG3REG "rdx" +#define __HYPERCALL_ARG4REG "r10" +#define __HYPERCALL_ARG5REG "r8" +#endif + +#define __HYPERCALL_DECLS \ + register unsigned long __res asm(__HYPERCALL_RETREG); \ + register unsigned long __arg1 asm(__HYPERCALL_ARG1REG) = __arg1; \ + register unsigned long __arg2 asm(__HYPERCALL_ARG2REG) = __arg2; \ + register unsigned long __arg3 asm(__HYPERCALL_ARG3REG) = __arg3; \ + register unsigned long __arg4 asm(__HYPERCALL_ARG4REG) = __arg4; \ + register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5; + +#define __HYPERCALL_0PARAM "=r" (__res) +#define __HYPERCALL_1PARAM __HYPERCALL_0PARAM, "+r" (__arg1) +#define __HYPERCALL_2PARAM __HYPERCALL_1PARAM, "+r" (__arg2) +#define __HYPERCALL_3PARAM __HYPERCALL_2PARAM, "+r" (__arg3) +#define __HYPERCALL_4PARAM __HYPERCALL_3PARAM, "+r" (__arg4) +#define __HYPERCALL_5PARAM __HYPERCALL_4PARAM, "+r" (__arg5) + +#define __HYPERCALL_0ARG() +#define __HYPERCALL_1ARG(a1) \ + __HYPERCALL_0ARG() __arg1 = (unsigned long)(a1); +#define __HYPERCALL_2ARG(a1,a2) \ + __HYPERCALL_1ARG(a1) __arg2 = (unsigned long)(a2); +#define __HYPERCALL_3ARG(a1,a2,a3) \ + __HYPERCALL_2ARG(a1,a2) __arg3 = (unsigned long)(a3); +#define __HYPERCALL_4ARG(a1,a2,a3,a4) \ + __HYPERCALL_3ARG(a1,a2,a3) __arg4 = (unsigned long)(a4); +#define __HYPERCALL_5ARG(a1,a2,a3,a4,a5) \ + __HYPERCALL_4ARG(a1,a2,a3,a4) __arg5 = (unsigned long)(a5); + +#define __HYPERCALL_CLOBBER5 "memory" +#define __HYPERCALL_CLOBBER4 __HYPERCALL_CLOBBER5, __HYPERCALL_ARG5REG +#define __HYPERCALL_CLOBBER3 __HYPERCALL_CLOBBER4, __HYPERCALL_ARG4REG +#define __HYPERCALL_CLOBBER2 __HYPERCALL_CLOBBER3, __HYPERCALL_ARG3REG +#define __HYPERCALL_CLOBBER1 __HYPERCALL_CLOBBER2, __HYPERCALL_ARG2REG +#define __HYPERCALL_CLOBBER0 __HYPERCALL_CLOBBER1, __HYPERCALL_ARG1REG + #define _hypercall0(type, name) \ ({ \ - long __res; \ - asm volatile ( \ - "call %[call]" \ - : "=a" (__res) \ - : [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ - : "memory" ); \ + __HYPERCALL_DECLS; \ + __HYPERCALL_0ARG(); \ + asm volatile (__HYPERCALL \ + : __HYPERCALL_0PARAM \ + : __HYPERCALL_ENTRY(name) \ + : __HYPERCALL_CLOBBER0); \ (type)__res; \ }) #define _hypercall1(type, name, a1) \ ({ \ - long __res, __ign1; \ - asm volatile ( \ - "call %[call]" \ - : "=a" (__res), "=b" (__ign1) \ - : "1" ((long)(a1)), \ - [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ - : "memory" ); \ + __HYPERCALL_DECLS; \ + __HYPERCALL_1ARG(a1); \ + asm volatile (__HYPERCALL \ + : __HYPERCALL_1PARAM \ + : __HYPERCALL_ENTRY(name) \ + : __HYPERCALL_CLOBBER1); \ (type)__res; \ }) #define _hypercall2(type, name, a1, a2) \ ({ \ - long __res, __ign1, __ign2; \ - asm volatile ( \ - "call %[call]" \ - : "=a" (__res), "=b" (__ign1), "=c" (__ign2) \ - : "1" ((long)(a1)), "2" ((long)(a2)), \ - [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ - : "memory" ); \ + __HYPERCALL_DECLS; \ + __HYPERCALL_2ARG(a1, a2); \ + asm volatile (__HYPERCALL \ + : __HYPERCALL_2PARAM \ + : __HYPERCALL_ENTRY(name) \ + : __HYPERCALL_CLOBBER2); \ (type)__res; \ }) #define _hypercall3(type, name, a1, a2, a3) \ ({ \ - long __res, __ign1, __ign2, __ign3; \ - asm volatile ( \ - "call %[call]" \ - : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \ - "=d" (__ign3) \ - : "1" ((long)(a1)), "2" ((long)(a2)), \ - "3" ((long)(a3)), \ - [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ - : "memory" ); \ + __HYPERCALL_DECLS; \ + __HYPERCALL_3ARG(a1, a2, a3); \ + asm volatile (__HYPERCALL \ + : __HYPERCALL_3PARAM \ + : __HYPERCALL_ENTRY(name) \ + : __HYPERCALL_CLOBBER3); \ (type)__res; \ }) #define _hypercall4(type, name, a1, a2, a3, a4) \ ({ \ - long __res, __ign1, __ign2, __ign3, __ign4; \ - asm volatile ( \ - "call %[call]" \ - : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \ - "=d" (__ign3), "=S" (__ign4) \ - : "1" ((long)(a1)), "2" ((long)(a2)), \ - "3" ((long)(a3)), "4" ((long)(a4)), \ - [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ - : "memory" ); \ + __HYPERCALL_DECLS; \ + __HYPERCALL_4ARG(a1, a2, a3, a4); \ + asm volatile (__HYPERCALL \ + : __HYPERCALL_4PARAM \ + : __HYPERCALL_ENTRY(name) \ + : __HYPERCALL_CLOBBER4); \ (type)__res; \ }) #define _hypercall5(type, name, a1, a2, a3, a4, a5) \ ({ \ - long __res, __ign1, __ign2, __ign3, __ign4, __ign5; \ - asm volatile ( \ - "call %[call]" \ - : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \ - "=d" (__ign3), "=S" (__ign4), "=D" (__ign5) \ - : "1" ((long)(a1)), "2" ((long)(a2)), \ - "3" ((long)(a3)), "4" ((long)(a4)), \ - "5" ((long)(a5)), \ - [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ - : "memory" ); \ + __HYPERCALL_DECLS; \ + __HYPERCALL_5ARG(a1, a2, a3, a4, a5); \ + asm volatile (__HYPERCALL \ + : __HYPERCALL_5PARAM \ + : __HYPERCALL_ENTRY(name) \ + : __HYPERCALL_CLOBBER5); \ (type)__res; \ }) -- cgit v1.2.3 From f6e587325b3bc7e5c829a407ddc25b52c1e73851 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:38 -0700 Subject: xen64: add extra pv_mmu_ops We need extra pv_mmu_ops for 64-bit, to deal with the extra level of pagetable. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/xen/enlighten.c | 33 +++++++++++++++++++++++++++++- arch/x86/xen/mmu.c | 51 +++++++++++++++++++++++++++++++++++++++++++++- arch/x86/xen/mmu.h | 15 ++++++++++++-- include/asm-x86/xen/page.h | 4 ++++ 4 files changed, 99 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index c5f0b40aa39d..afb047e30bdc 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -803,6 +803,18 @@ static void xen_release_pmd(u32 pfn) xen_release_ptpage(pfn, PT_PMD); } +#if PAGETABLE_LEVELS == 4 +static void xen_alloc_pud(struct mm_struct *mm, u32 pfn) +{ + xen_alloc_ptpage(mm, pfn, PT_PUD); +} + +static void xen_release_pud(u32 pfn) +{ + xen_release_ptpage(pfn, PT_PUD); +} +#endif + #ifdef CONFIG_HIGHPTE static void *xen_kmap_atomic_pte(struct page *page, enum km_type type) { @@ -922,6 +934,11 @@ static __init void xen_pagetable_setup_done(pgd_t *base) pv_mmu_ops.alloc_pmd = xen_alloc_pmd; pv_mmu_ops.release_pte = xen_release_pte; pv_mmu_ops.release_pmd = xen_release_pmd; +#if PAGETABLE_LEVELS == 4 + pv_mmu_ops.alloc_pud = xen_alloc_pud; + pv_mmu_ops.release_pud = xen_release_pud; +#endif + pv_mmu_ops.set_pte = xen_set_pte; xen_setup_shared_info(); @@ -937,6 +954,9 @@ static __init void xen_post_allocator_init(void) { pv_mmu_ops.set_pmd = xen_set_pmd; pv_mmu_ops.set_pud = xen_set_pud; +#if PAGETABLE_LEVELS == 4 + pv_mmu_ops.set_pgd = xen_set_pgd; +#endif xen_mark_init_mm_pinned(); } @@ -1185,15 +1205,26 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = { .make_pte = xen_make_pte, .make_pgd = xen_make_pgd, +#ifdef CONFIG_X86_PAE .set_pte_atomic = xen_set_pte_atomic, .set_pte_present = xen_set_pte_at, - .set_pud = xen_set_pud_hyper, .pte_clear = xen_pte_clear, .pmd_clear = xen_pmd_clear, +#endif /* CONFIG_X86_PAE */ + .set_pud = xen_set_pud_hyper, .make_pmd = xen_make_pmd, .pmd_val = xen_pmd_val, +#if PAGETABLE_LEVELS == 4 + .pud_val = xen_pud_val, + .make_pud = xen_make_pud, + .set_pgd = xen_set_pgd_hyper, + + .alloc_pud = xen_alloc_pte_init, + .release_pud = xen_release_pte_init, +#endif /* PAGETABLE_LEVELS == 4 */ + .activate_mm = xen_activate_mm, .dup_mmap = xen_dup_mmap, .exit_mmap = xen_exit_mmap, diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 4fca9d88bef0..d0976b87cd2c 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -438,14 +438,19 @@ void xen_set_pud(pud_t *ptr, pud_t val) void xen_set_pte(pte_t *ptep, pte_t pte) { +#ifdef CONFIG_X86_PAE ptep->pte_high = pte.pte_high; smp_wmb(); ptep->pte_low = pte.pte_low; +#else + *ptep = pte; +#endif } +#ifdef CONFIG_X86_PAE void xen_set_pte_atomic(pte_t *ptep, pte_t pte) { - set_64bit((u64 *)ptep, pte_val_ma(pte)); + set_64bit((u64 *)ptep, native_pte_val(pte)); } void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) @@ -459,6 +464,7 @@ void xen_pmd_clear(pmd_t *pmdp) { set_pmd(pmdp, __pmd(0)); } +#endif /* CONFIG_X86_PAE */ pmd_t xen_make_pmd(pmdval_t pmd) { @@ -466,6 +472,49 @@ pmd_t xen_make_pmd(pmdval_t pmd) return native_make_pmd(pmd); } +#if PAGETABLE_LEVELS == 4 +pudval_t xen_pud_val(pud_t pud) +{ + return pte_mfn_to_pfn(pud.pud); +} + +pud_t xen_make_pud(pudval_t pud) +{ + pud = pte_pfn_to_mfn(pud); + + return native_make_pud(pud); +} + +void xen_set_pgd_hyper(pgd_t *ptr, pgd_t val) +{ + struct mmu_update u; + + preempt_disable(); + + xen_mc_batch(); + + u.ptr = virt_to_machine(ptr).maddr; + u.val = pgd_val_ma(val); + extend_mmu_update(&u); + + xen_mc_issue(PARAVIRT_LAZY_MMU); + + preempt_enable(); +} + +void xen_set_pgd(pgd_t *ptr, pgd_t val) +{ + /* If page is not pinned, we can just update the entry + directly */ + if (!page_pinned(ptr)) { + *ptr = val; + return; + } + + xen_set_pgd_hyper(ptr, val); +} +#endif /* PAGETABLE_LEVELS == 4 */ + /* (Yet another) pagetable walker. This one is intended for pinning a pagetable. This means that it walks a pagetable and calls the diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h index 7856e37f6044..19d544b0b6c6 100644 --- a/arch/x86/xen/mmu.h +++ b/arch/x86/xen/mmu.h @@ -32,13 +32,24 @@ pgd_t xen_make_pgd(pgdval_t); void xen_set_pte(pte_t *ptep, pte_t pteval); void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval); + +#ifdef CONFIG_X86_PAE void xen_set_pte_atomic(pte_t *ptep, pte_t pte); +void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); +void xen_pmd_clear(pmd_t *pmdp); +#endif /* CONFIG_X86_PAE */ + void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval); void xen_set_pud(pud_t *ptr, pud_t val); void xen_set_pmd_hyper(pmd_t *pmdp, pmd_t pmdval); void xen_set_pud_hyper(pud_t *ptr, pud_t val); -void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -void xen_pmd_clear(pmd_t *pmdp); + +#if PAGETABLE_LEVELS == 4 +pudval_t xen_pud_val(pud_t pud); +pud_t xen_make_pud(pudval_t pudval); +void xen_set_pgd(pgd_t *pgdp, pgd_t pgd); +void xen_set_pgd_hyper(pgd_t *pgdp, pgd_t pgd); +#endif pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep); void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h index 377c04591c15..a40be65e8eae 100644 --- a/include/asm-x86/xen/page.h +++ b/include/asm-x86/xen/page.h @@ -148,7 +148,11 @@ static inline pte_t __pte_ma(pteval_t x) } #define pmd_val_ma(v) ((v).pmd) +#ifdef __PAGETABLE_PUD_FOLDED #define pud_val_ma(v) ((v).pgd.pgd) +#else +#define pud_val_ma(v) ((v).pud) +#endif #define __pmd_ma(x) ((pmd_t) { (x) } ) #define pgd_val_ma(x) ((x).pgd) -- cgit v1.2.3 From 5b09b2876ed1a8e34a0da8f069575fc6174e2077 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:42 -0700 Subject: x86_64: add workaround for no %gs-based percpu As a stopgap until Mike Travis's x86-64 gs-based percpu patches are ready, provide workaround functions for x86_read/write_percpu for Xen's use. Specifically, this means that we can't really make use of vcpu placement, because we can't use a single gs-based memory access to get to vcpu fields. So disable all that for now. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/kernel/head64.c | 11 ++++++++--- arch/x86/xen/enlighten.c | 5 +++++ include/asm-x86/percpu.h | 26 ++++++++++++++++++++++++++ include/asm-x86/setup.h | 1 + 4 files changed, 40 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index c97819829146..1b318e903bf6 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -39,6 +39,13 @@ static struct x8664_pda *__cpu_pda[NR_CPUS] __initdata; static struct x8664_pda *__cpu_pda[NR_CPUS] __read_mostly; #endif +void __init x86_64_init_pda(void) +{ + _cpu_pda = __cpu_pda; + cpu_pda(0) = &_boot_cpu_pda; + pda_init(0); +} + static void __init zap_identity_mappings(void) { pgd_t *pgd = pgd_offset_k(0UL); @@ -102,9 +109,7 @@ void __init x86_64_start_kernel(char * real_mode_data) early_printk("Kernel alive\n"); - _cpu_pda = __cpu_pda; - cpu_pda(0) = &_boot_cpu_pda; - pda_init(0); + x86_64_init_pda(); early_printk("Kernel really alive\n"); diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index a85f447b8d00..f3f11acf7856 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -971,6 +971,7 @@ void xen_setup_vcpu_info_placement(void) /* xen_vcpu_setup managed to place the vcpu_info within the percpu area for all cpus, so make use of it */ +#ifdef CONFIG_X86_32 if (have_vcpu_info_placement) { printk(KERN_INFO "Xen: using vcpu_info placement\n"); @@ -980,6 +981,7 @@ void xen_setup_vcpu_info_placement(void) pv_irq_ops.irq_enable = xen_irq_enable_direct; pv_mmu_ops.read_cr2 = xen_read_cr2_direct; } +#endif } static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf, @@ -1000,10 +1002,12 @@ static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf, goto patch_site switch (type) { +#ifdef CONFIG_X86_32 SITE(pv_irq_ops, irq_enable); SITE(pv_irq_ops, irq_disable); SITE(pv_irq_ops, save_fl); SITE(pv_irq_ops, restore_fl); +#endif /* CONFIG_X86_32 */ #undef SITE patch_site: @@ -1323,6 +1327,7 @@ asmlinkage void __init xen_start_kernel(void) #ifdef CONFIG_X86_64 /* Disable until direct per-cpu data access. */ have_vcpu_info_placement = 0; + x86_64_init_pda(); #endif xen_smp_init(); diff --git a/include/asm-x86/percpu.h b/include/asm-x86/percpu.h index 912a3a17b9db..4e91ee1e37aa 100644 --- a/include/asm-x86/percpu.h +++ b/include/asm-x86/percpu.h @@ -22,6 +22,32 @@ DECLARE_PER_CPU(struct x8664_pda, pda); +/* + * These are supposed to be implemented as a single instruction which + * operates on the per-cpu data base segment. x86-64 doesn't have + * that yet, so this is a fairly inefficient workaround for the + * meantime. The single instruction is atomic with respect to + * preemption and interrupts, so we need to explicitly disable + * interrupts here to achieve the same effect. However, because it + * can be used from within interrupt-disable/enable, we can't actually + * disable interrupts; disabling preemption is enough. + */ +#define x86_read_percpu(var) \ + ({ \ + typeof(per_cpu_var(var)) __tmp; \ + preempt_disable(); \ + __tmp = __get_cpu_var(var); \ + preempt_enable(); \ + __tmp; \ + }) + +#define x86_write_percpu(var, val) \ + do { \ + preempt_disable(); \ + __get_cpu_var(var) = (val); \ + preempt_enable(); \ + } while(0) + #else /* CONFIG_X86_64 */ #ifdef __ASSEMBLY__ diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h index 90ab2225e71b..659492624e74 100644 --- a/include/asm-x86/setup.h +++ b/include/asm-x86/setup.h @@ -76,6 +76,7 @@ extern unsigned long init_pg_tables_start; extern unsigned long init_pg_tables_end; #else +void __init x86_64_init_pda(void); void __init x86_64_start_kernel(char *real_mode); void __init x86_64_start_reservations(char *real_mode_data); -- cgit v1.2.3 From 084a2a4e7656209ea93aac9778defa03213ca31d Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:50 -0700 Subject: xen64: early mapping setup Set up the initial pagetables to map the kernel mapping into the physical mapping space. This makes __va() usable, since it requires physical mappings. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/xen/enlighten.c | 192 +++++++++++++++++++++++++++++++++++++++---- include/asm-x86/pgtable_64.h | 2 + 2 files changed, 178 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 2b7bea3bb6f3..a991ee7ade9e 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -1294,6 +1295,157 @@ static void __init xen_reserve_top(void) #endif /* CONFIG_X86_32 */ } +#ifdef CONFIG_X86_64 +/* + * Like __va(), but returns address in the kernel mapping (which is + * all we have until the physical memory mapping has been set up. + */ +static void *__ka(phys_addr_t paddr) +{ + return (void *)(paddr + __START_KERNEL_map); +} + +/* Convert a machine address to physical address */ +static unsigned long m2p(phys_addr_t maddr) +{ + phys_addr_t paddr; + + maddr &= PTE_MASK; + paddr = mfn_to_pfn(maddr >> PAGE_SHIFT) << PAGE_SHIFT; + + return paddr; +} + +/* Convert a machine address to kernel virtual */ +static void *m2v(phys_addr_t maddr) +{ + return __ka(m2p(maddr)); +} + +static void walk(pgd_t *pgd, unsigned long addr) +{ + unsigned l4idx = pgd_index(addr); + unsigned l3idx = pud_index(addr); + unsigned l2idx = pmd_index(addr); + unsigned l1idx = pte_index(addr); + pgd_t l4; + pud_t l3; + pmd_t l2; + pte_t l1; + + xen_raw_printk("walk %p, %lx -> %d %d %d %d\n", + pgd, addr, l4idx, l3idx, l2idx, l1idx); + + l4 = pgd[l4idx]; + xen_raw_printk(" l4: %016lx\n", l4.pgd); + xen_raw_printk(" %016lx\n", pgd_val(l4)); + + l3 = ((pud_t *)(m2v(l4.pgd)))[l3idx]; + xen_raw_printk(" l3: %016lx\n", l3.pud); + xen_raw_printk(" %016lx\n", pud_val(l3)); + + l2 = ((pmd_t *)(m2v(l3.pud)))[l2idx]; + xen_raw_printk(" l2: %016lx\n", l2.pmd); + xen_raw_printk(" %016lx\n", pmd_val(l2)); + + l1 = ((pte_t *)(m2v(l2.pmd)))[l1idx]; + xen_raw_printk(" l1: %016lx\n", l1.pte); + xen_raw_printk(" %016lx\n", pte_val(l1)); +} + +static void set_page_prot(void *addr, pgprot_t prot) +{ + unsigned long pfn = __pa(addr) >> PAGE_SHIFT; + pte_t pte = pfn_pte(pfn, prot); + + xen_raw_printk("addr=%p pfn=%lx mfn=%lx prot=%016x pte=%016x\n", + addr, pfn, get_phys_to_machine(pfn), + pgprot_val(prot), pte.pte); + + if (HYPERVISOR_update_va_mapping((unsigned long)addr, pte, 0)) + BUG(); +} + +static void convert_pfn_mfn(void *v) +{ + pte_t *pte = v; + int i; + + /* All levels are converted the same way, so just treat them + as ptes. */ + for(i = 0; i < PTRS_PER_PTE; i++) + pte[i] = xen_make_pte(pte[i].pte); +} + +/* + * Set up the inital kernel pagetable. + * + * We can construct this by grafting the Xen provided pagetable into + * head_64.S's preconstructed pagetables. We copy the Xen L2's into + * level2_ident_pgt, level2_kernel_pgt and level2_fixmap_pgt. This + * means that only the kernel has a physical mapping to start with - + * but that's enough to get __va working. We need to fill in the rest + * of the physical mapping once some sort of allocator has been set + * up. + */ +static __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd) +{ + pud_t *l3; + pmd_t *l2; + + /* Zap identity mapping */ + init_level4_pgt[0] = __pgd(0); + + /* Pre-constructed entries are in pfn, so convert to mfn */ + convert_pfn_mfn(init_level4_pgt); + convert_pfn_mfn(level3_ident_pgt); + convert_pfn_mfn(level3_kernel_pgt); + + l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd); + l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud); + + memcpy(level2_ident_pgt, l2, sizeof(pmd_t) * PTRS_PER_PMD); + memcpy(level2_kernel_pgt, l2, sizeof(pmd_t) * PTRS_PER_PMD); + + l3 = m2v(pgd[pgd_index(__START_KERNEL_map + PMD_SIZE)].pgd); + l2 = m2v(l3[pud_index(__START_KERNEL_map + PMD_SIZE)].pud); + memcpy(level2_fixmap_pgt, l2, sizeof(pmd_t) * PTRS_PER_PMD); + + /* Make pagetable pieces RO */ + set_page_prot(init_level4_pgt, PAGE_KERNEL_RO); + set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO); + set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO); + set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO); + set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO); + set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO); + + /* Pin down new L4 */ + pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE, PFN_DOWN(__pa(init_level4_pgt))); + + /* Unpin Xen-provided one */ + pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(pgd))); + + /* Switch over */ + pgd = init_level4_pgt; + xen_write_cr3(__pa(pgd)); + + max_pfn_mapped = PFN_DOWN(__pa(pgd) + + xen_start_info->nr_pt_frames*PAGE_SIZE + + 512*1024); + + return pgd; +} +#else +static __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd) +{ + init_pg_tables_start = __pa(pgd); + init_pg_tables_end = __pa(pgd) + xen_start_info->nr_pt_frames*PAGE_SIZE; + max_pfn_mapped = PFN_DOWN(init_pg_tables_end + 512*1024); + + return pgd; +} +#endif /* CONFIG_X86_64 */ + /* First C function to be called on Xen boot */ asmlinkage void __init xen_start_kernel(void) { @@ -1336,32 +1488,29 @@ asmlinkage void __init xen_start_kernel(void) pgd = (pgd_t *)xen_start_info->pt_base; -#ifdef CONFIG_X86_32 - init_pg_tables_start = __pa(pgd); - init_pg_tables_end = __pa(pgd) + xen_start_info->nr_pt_frames*PAGE_SIZE; - max_pfn_mapped = (init_pg_tables_end + 512*1024) >> PAGE_SHIFT; -#endif + /* Prevent unwanted bits from being set in PTEs. */ + __supported_pte_mask &= ~_PAGE_GLOBAL; + if (!is_initial_xendomain()) + __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD); + + /* Don't do the full vcpu_info placement stuff until we have a + possible map and a non-dummy shared_info. */ + per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0]; + + xen_raw_console_write("mapping kernel into physical memory\n"); + pgd = xen_setup_kernel_pagetable(pgd); - init_mm.pgd = pgd; /* use the Xen pagetables to start */ + init_mm.pgd = pgd; /* keep using Xen gdt for now; no urgent need to change it */ x86_write_percpu(xen_cr3, __pa(pgd)); x86_write_percpu(xen_current_cr3, __pa(pgd)); - /* Don't do the full vcpu_info placement stuff until we have a - possible map and a non-dummy shared_info. */ - per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0]; - pv_info.kernel_rpl = 1; if (xen_feature(XENFEAT_supervisor_mode_kernel)) pv_info.kernel_rpl = 0; - /* Prevent unwanted bits from being set in PTEs. */ - __supported_pte_mask &= ~_PAGE_GLOBAL; - if (!is_initial_xendomain()) - __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD); - /* set the limit of our address space */ xen_reserve_top(); @@ -1384,10 +1533,21 @@ asmlinkage void __init xen_start_kernel(void) add_preferred_console("hvc", 0, NULL); } + xen_raw_console_write("about to get started...\n"); + +#if 0 + xen_raw_printk("&boot_params=%p __pa(&boot_params)=%lx __va(__pa(&boot_params))=%lx\n", + &boot_params, __pa_symbol(&boot_params), + __va(__pa_symbol(&boot_params))); + + walk(pgd, &boot_params); + walk(pgd, __va(__pa(&boot_params))); +#endif + /* Start the world */ #ifdef CONFIG_X86_32 i386_start_kernel(); #else - x86_64_start_kernel((char *)&boot_params); + x86_64_start_reservations((char *)__pa_symbol(&boot_params)); #endif } diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h index fa7208b483ca..805d3128bfc4 100644 --- a/include/asm-x86/pgtable_64.h +++ b/include/asm-x86/pgtable_64.h @@ -16,6 +16,8 @@ extern pud_t level3_kernel_pgt[512]; extern pud_t level3_ident_pgt[512]; extern pmd_t level2_kernel_pgt[512]; +extern pmd_t level2_fixmap_pgt[512]; +extern pmd_t level2_ident_pgt[512]; extern pgd_t init_level4_pgt[]; #define swapper_pg_dir init_level4_pgt -- cgit v1.2.3 From ce803e705f1cbdd2703e83061622089b5b4a5417 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:06:55 -0700 Subject: xen64: use arbitrary_virt_to_machine for xen_set_pmd When building initial pagetables in 64-bit kernel the pud/pmd pointer may be in ioremap/fixmap space, so we need to walk the pagetable to look up the physical address. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/xen/mmu.c | 9 ++++++--- include/asm-x86/xen/page.h | 2 +- 2 files changed, 7 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 05d7392a7a4c..a8f023271819 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -178,8 +178,9 @@ void set_phys_to_machine(unsigned long pfn, unsigned long mfn) p2m_top[topidx][idx] = mfn; } -xmaddr_t arbitrary_virt_to_machine(unsigned long address) +xmaddr_t arbitrary_virt_to_machine(void *vaddr) { + unsigned long address = (unsigned long)vaddr; unsigned int level; pte_t *pte = lookup_address(address, &level); unsigned offset = address & ~PAGE_MASK; @@ -253,7 +254,8 @@ void xen_set_pmd_hyper(pmd_t *ptr, pmd_t val) xen_mc_batch(); - u.ptr = virt_to_machine(ptr).maddr; + /* ptr may be ioremapped for 64-bit pagetable setup */ + u.ptr = arbitrary_virt_to_machine(ptr).maddr; u.val = pmd_val_ma(val); extend_mmu_update(&u); @@ -415,7 +417,8 @@ void xen_set_pud_hyper(pud_t *ptr, pud_t val) xen_mc_batch(); - u.ptr = virt_to_machine(ptr).maddr; + /* ptr may be ioremapped for 64-bit pagetable setup */ + u.ptr = arbitrary_virt_to_machine(ptr).maddr; u.val = pud_val_ma(val); extend_mmu_update(&u); diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h index a40be65e8eae..05e678a86628 100644 --- a/include/asm-x86/xen/page.h +++ b/include/asm-x86/xen/page.h @@ -158,7 +158,7 @@ static inline pte_t __pte_ma(pteval_t x) #define pgd_val_ma(x) ((x).pgd) -xmaddr_t arbitrary_virt_to_machine(unsigned long address); +xmaddr_t arbitrary_virt_to_machine(void *address); void make_lowmem_page_readonly(void *vaddr); void make_lowmem_page_readwrite(void *vaddr); -- cgit v1.2.3 From 88459d4c7eb68c4a15609e00e5d100e2a305f040 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:07:02 -0700 Subject: xen64: register callbacks in arch-independent way Use callback_op hypercall to register callbacks in a 32/64-bit independent way (64-bit doesn't need a code segment, but that detail is hidden in XEN_CALLBACK). Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- arch/x86/xen/setup.c | 27 +++++++++++++++++---------- include/asm-x86/xen/hypercall.h | 12 ++++++++++++ 2 files changed, 29 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index f52f3855fb6b..bea3d4f779db 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -91,19 +91,25 @@ static void __init fiddle_vdso(void) *mask |= 1 << VDSO_NOTE_NONEGSEG_BIT; } -void xen_enable_sysenter(void) +static __cpuinit int register_callback(unsigned type, const void *func) { - int cpu = smp_processor_id(); - extern void xen_sysenter_target(void); - /* Mask events on entry, even though they get enabled immediately */ - static struct callback_register sysenter = { - .type = CALLBACKTYPE_sysenter, - .address = XEN_CALLBACK(__KERNEL_CS, xen_sysenter_target), + struct callback_register callback = { + .type = type, + .address = XEN_CALLBACK(__KERNEL_CS, func), .flags = CALLBACKF_mask_events, }; + return HYPERVISOR_callback_op(CALLBACKOP_register, &callback); +} + +void __cpuinit xen_enable_sysenter(void) +{ + int cpu = smp_processor_id(); + extern void xen_sysenter_target(void); + if (!boot_cpu_has(X86_FEATURE_SEP) || - HYPERVISOR_callback_op(CALLBACKOP_register, &sysenter) != 0) { + register_callback(CALLBACKTYPE_sysenter, + xen_sysenter_target) != 0) { clear_cpu_cap(&cpu_data(cpu), X86_FEATURE_SEP); clear_cpu_cap(&boot_cpu_data, X86_FEATURE_SEP); } @@ -120,8 +126,9 @@ void __init xen_arch_setup(void) if (!xen_feature(XENFEAT_auto_translated_physmap)) HYPERVISOR_vm_assist(VMASST_CMD_enable, VMASST_TYPE_pae_extended_cr3); - HYPERVISOR_set_callbacks(__KERNEL_CS, (unsigned long)xen_hypervisor_callback, - __KERNEL_CS, (unsigned long)xen_failsafe_callback); + if (register_callback(CALLBACKTYPE_event, xen_hypervisor_callback) || + register_callback(CALLBACKTYPE_failsafe, xen_failsafe_callback)) + BUG(); xen_enable_sysenter(); diff --git a/include/asm-x86/xen/hypercall.h b/include/asm-x86/xen/hypercall.h index d0c5dedcb001..25366641f3f8 100644 --- a/include/asm-x86/xen/hypercall.h +++ b/include/asm-x86/xen/hypercall.h @@ -226,6 +226,7 @@ HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp) return _hypercall2(int, stack_switch, ss, esp); } +#ifdef CONFIG_X86_32 static inline int HYPERVISOR_set_callbacks(unsigned long event_selector, unsigned long event_address, @@ -236,6 +237,17 @@ HYPERVISOR_set_callbacks(unsigned long event_selector, event_selector, event_address, failsafe_selector, failsafe_address); } +#else /* CONFIG_X86_64 */ +static inline int +HYPERVISOR_set_callbacks(unsigned long event_address, + unsigned long failsafe_address, + unsigned long syscall_address) +{ + return _hypercall3(int, set_callbacks, + event_address, failsafe_address, + syscall_address); +} +#endif /* CONFIG_X86_{32,64} */ static inline int HYPERVISOR_callback_op(int cmd, void *arg) -- cgit v1.2.3 From 45eb0d889862c813dfc98c95549c25acbfc99ab8 Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Tue, 8 Jul 2008 15:07:04 -0700 Subject: Xen64: HYPERVISOR_set_segment_base() implementation Signed-off-by: Eduardo Habkost Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- include/asm-x86/xen/hypercall.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/asm-x86/xen/hypercall.h b/include/asm-x86/xen/hypercall.h index 25366641f3f8..d9e4cf7b23ac 100644 --- a/include/asm-x86/xen/hypercall.h +++ b/include/asm-x86/xen/hypercall.h @@ -388,6 +388,14 @@ HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args) return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args); } +#ifdef CONFIG_X86_64 +static inline int +HYPERVISOR_set_segment_base(int reg, unsigned long value) +{ + return _hypercall2(int, set_segment_base, reg, value); +} +#endif + static inline int HYPERVISOR_suspend(unsigned long srec) { -- cgit v1.2.3 From c05f1cfaba846dfbd4a67e348087d32326288fe0 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:07:11 -0700 Subject: xen64: implement 64-bit update_descriptor 64-bit hypercall interface can pass a maddr in one argument rather than splitting it. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- include/asm-x86/xen/hypercall.h | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/asm-x86/xen/hypercall.h b/include/asm-x86/xen/hypercall.h index d9e4cf7b23ac..91cb7fd5c123 100644 --- a/include/asm-x86/xen/hypercall.h +++ b/include/asm-x86/xen/hypercall.h @@ -466,10 +466,15 @@ MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr, struct desc_struct desc) { mcl->op = __HYPERVISOR_update_descriptor; - mcl->args[0] = maddr; - mcl->args[1] = maddr >> 32; - mcl->args[2] = desc.a; - mcl->args[3] = desc.b; + if (sizeof(maddr) == sizeof(long)) { + mcl->args[0] = maddr; + mcl->args[1] = *(unsigned long *)&desc; + } else { + mcl->args[0] = maddr; + mcl->args[1] = maddr >> 32; + mcl->args[2] = desc.a; + mcl->args[3] = desc.b; + } } static inline void -- cgit v1.2.3 From c24481e9da2c7bc8aafab46e0bc64821244a24a6 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 15:07:12 -0700 Subject: xen64: save lots of registers The Xen hypercall interface is allowed to trash any or all of the argument registers, so we need to be careful that the kernel state isn't damaged. On 32-bit kernels, the hypercall parameter registers same as a regparm function call, so we've got away without explicit clobbering so far. The 64-bit ABI defines lots of caller-save registers, so save them all for safety. We can trim this set later by re-distributing the responsibility for saving all these registers. Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- include/asm-x86/paravirt.h | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index ef5e8ec6a6ab..eef8095a09dc 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1396,8 +1396,8 @@ extern struct paravirt_patch_site __parainstructions[], * caller saved registers but the argument parameter */ #define PV_SAVE_REGS "pushq %%rdi;" #define PV_RESTORE_REGS "popq %%rdi;" -#define PV_EXTRA_CLOBBERS EXTRA_CLOBBERS, "rcx" , "rdx" -#define PV_VEXTRA_CLOBBERS EXTRA_CLOBBERS, "rdi", "rcx" , "rdx" +#define PV_EXTRA_CLOBBERS EXTRA_CLOBBERS, "rcx" , "rdx", "rsi" +#define PV_VEXTRA_CLOBBERS EXTRA_CLOBBERS, "rdi", "rcx" , "rdx", "rsi" #define PV_FLAGS_ARG "D" #endif @@ -1489,8 +1489,26 @@ static inline unsigned long __raw_local_irq_save(void) #ifdef CONFIG_X86_64 -#define PV_SAVE_REGS pushq %rax; pushq %rdi; pushq %rcx; pushq %rdx -#define PV_RESTORE_REGS popq %rdx; popq %rcx; popq %rdi; popq %rax +#define PV_SAVE_REGS \ + push %rax; \ + push %rcx; \ + push %rdx; \ + push %rsi; \ + push %rdi; \ + push %r8; \ + push %r9; \ + push %r10; \ + push %r11 +#define PV_RESTORE_REGS \ + pop %r11; \ + pop %r10; \ + pop %r9; \ + pop %r8; \ + pop %rdi; \ + pop %rsi; \ + pop %rdx; \ + pop %rcx; \ + pop %rax #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 8) #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .quad, 8) #define PARA_INDIRECT(addr) *addr(%rip) -- cgit v1.2.3 From 9c8a4420444801bd9d818f542eb4a5be8d5687f0 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 9 Jul 2008 13:15:03 +0200 Subject: xen64: fix !HVC_XEN build dependency fix: arch/x86/xen/built-in.o: In function `set_page_prot': enlighten.c:(.text+0x111d): undefined reference to `xen_raw_printk' arch/x86/xen/built-in.o: In function `xen_start_kernel': : undefined reference to `xen_raw_console_write' arch/x86/xen/built-in.o: In function `xen_start_kernel': : undefined reference to `xen_raw_console_write' Signed-off-by: Ingo Molnar --- include/xen/hvc-console.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/xen/hvc-console.h b/include/xen/hvc-console.h index 98b79bc404dd..c3adde32669b 100644 --- a/include/xen/hvc-console.h +++ b/include/xen/hvc-console.h @@ -5,11 +5,12 @@ extern struct console xenboot_console; #ifdef CONFIG_HVC_XEN void xen_console_resume(void); +void xen_raw_console_write(const char *str); +void xen_raw_printk(const char *fmt, ...); #else static inline void xen_console_resume(void) { } +static inline void xen_raw_console_write(const char *str) { } +static inline void xen_raw_printk(const char *fmt, ...) { } #endif -void xen_raw_console_write(const char *str); -void xen_raw_printk(const char *fmt, ...); - #endif /* XEN_HVC_CONSOLE_H */ -- cgit v1.2.3 From 6a52e4b1cddd90fbfde8fb67021657936ee74b07 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Sat, 12 Jul 2008 02:22:00 -0700 Subject: x86_64: further cleanup of 32-bit compat syscall mechanisms AMD only supports "syscall" from 32-bit compat usermode. Intel and Centaur(?) only support "sysenter" from 32-bit compat usermode. Set the X86 feature bits accordingly, and set up the vdso in accordance with those bits. On the offchance we run on in a 64-bit environment which supports neither syscall nor sysenter from 32-bit mode, then fall back to the int $0x80 vdso. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/amd_64.c | 2 ++ arch/x86/kernel/cpu/common_64.c | 3 --- arch/x86/vdso/Makefile | 2 +- arch/x86/vdso/vdso32-setup.c | 19 +++++++++---------- arch/x86/vdso/vdso32.S | 13 ++++++++----- arch/x86/xen/setup.c | 10 +++++++--- include/asm-x86/vdso.h | 8 ++++++++ 7 files changed, 35 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/cpu/amd_64.c b/arch/x86/kernel/cpu/amd_64.c index 7c36fb8a28d4..d1692b2a41ff 100644 --- a/arch/x86/kernel/cpu/amd_64.c +++ b/arch/x86/kernel/cpu/amd_64.c @@ -115,6 +115,8 @@ static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) /* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */ if (c->x86_power & (1<<8)) set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); + + set_cpu_cap(c, X86_FEATURE_SYSCALL32); } static void __cpuinit init_amd(struct cpuinfo_x86 *c) diff --git a/arch/x86/kernel/cpu/common_64.c b/arch/x86/kernel/cpu/common_64.c index 15419cd3c5a4..736f50fa433d 100644 --- a/arch/x86/kernel/cpu/common_64.c +++ b/arch/x86/kernel/cpu/common_64.c @@ -317,9 +317,6 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c) c->x86_phys_bits = eax & 0xff; } - /* Assume all 64-bit CPUs support 32-bit syscall */ - set_cpu_cap(c, X86_FEATURE_SYSCALL32); - if (c->x86_vendor != X86_VENDOR_UNKNOWN && cpu_devs[c->x86_vendor]->c_early_init) cpu_devs[c->x86_vendor]->c_early_init(c); diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index b7ad9f89d21f..4d6ef0a336d6 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -62,7 +62,7 @@ $(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE # Build multiple 32-bit vDSO images to choose from at boot time. # obj-$(VDSO32-y) += vdso32-syms.lds -vdso32.so-$(CONFIG_X86_32) += int80 +vdso32.so-$(VDSO32-y) += int80 vdso32.so-$(CONFIG_COMPAT) += syscall vdso32.so-$(VDSO32-y) += sysenter diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c index 0bce5429a515..513f330c5832 100644 --- a/arch/x86/vdso/vdso32-setup.c +++ b/arch/x86/vdso/vdso32-setup.c @@ -193,17 +193,12 @@ static __init void relocate_vdso(Elf32_Ehdr *ehdr) } } -/* - * These symbols are defined by vdso32.S to mark the bounds - * of the ELF DSO images included therein. - */ -extern const char vdso32_default_start, vdso32_default_end; -extern const char vdso32_sysenter_start, vdso32_sysenter_end; static struct page *vdso32_pages[1]; #ifdef CONFIG_X86_64 #define vdso32_sysenter() (boot_cpu_has(X86_FEATURE_SYSENTER32)) +#define vdso32_syscall() (boot_cpu_has(X86_FEATURE_SYSCALL32)) /* May not be __init: called during resume */ void syscall32_cpu_init(void) @@ -226,6 +221,7 @@ static inline void map_compat_vdso(int map) #else /* CONFIG_X86_32 */ #define vdso32_sysenter() (boot_cpu_has(X86_FEATURE_SEP)) +#define vdso32_syscall() (0) void enable_sep_cpu(void) { @@ -296,12 +292,15 @@ int __init sysenter_setup(void) gate_vma_init(); #endif - if (!vdso32_sysenter()) { - vsyscall = &vdso32_default_start; - vsyscall_len = &vdso32_default_end - &vdso32_default_start; - } else { + if (vdso32_syscall()) { + vsyscall = &vdso32_syscall_start; + vsyscall_len = &vdso32_syscall_end - &vdso32_syscall_start; + } else if (vdso32_sysenter()){ vsyscall = &vdso32_sysenter_start; vsyscall_len = &vdso32_sysenter_end - &vdso32_sysenter_start; + } else { + vsyscall = &vdso32_int80_start; + vsyscall_len = &vdso32_int80_end - &vdso32_int80_start; } memcpy(syscall_page, vsyscall, vsyscall_len); diff --git a/arch/x86/vdso/vdso32.S b/arch/x86/vdso/vdso32.S index 1e36f72cab86..2ce5f82c333b 100644 --- a/arch/x86/vdso/vdso32.S +++ b/arch/x86/vdso/vdso32.S @@ -2,14 +2,17 @@ __INITDATA - .globl vdso32_default_start, vdso32_default_end -vdso32_default_start: -#ifdef CONFIG_X86_32 + .globl vdso32_int80_start, vdso32_int80_end +vdso32_int80_start: .incbin "arch/x86/vdso/vdso32-int80.so" -#else +vdso32_int80_end: + + .globl vdso32_syscall_start, vdso32_syscall_end +vdso32_syscall_start: +#ifdef CONFIG_COMPAT .incbin "arch/x86/vdso/vdso32-syscall.so" #endif -vdso32_default_end: +vdso32_syscall_end: .globl vdso32_sysenter_start, vdso32_sysenter_end vdso32_sysenter_start: diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 3e11779755c3..e3648e64a637 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -83,12 +83,16 @@ static void xen_idle(void) /* * Set the bit indicating "nosegneg" library variants should be used. + * We only need to bother in pure 32-bit mode; compat 32-bit processes + * can have un-truncated segments, so wrapping around is allowed. */ static void __init fiddle_vdso(void) { -#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) - extern const char vdso32_default_start; - u32 *mask = VDSO32_SYMBOL(&vdso32_default_start, NOTE_MASK); +#ifdef CONFIG_X86_32 + u32 *mask; + mask = VDSO32_SYMBOL(&vdso32_int80_start, NOTE_MASK); + *mask |= 1 << VDSO_NOTE_NONEGSEG_BIT; + mask = VDSO32_SYMBOL(&vdso32_sysenter_start, NOTE_MASK); *mask |= 1 << VDSO_NOTE_NONEGSEG_BIT; #endif } diff --git a/include/asm-x86/vdso.h b/include/asm-x86/vdso.h index 86e085e003d2..8e18fb80f5e6 100644 --- a/include/asm-x86/vdso.h +++ b/include/asm-x86/vdso.h @@ -36,4 +36,12 @@ extern const char VDSO32_PRELINK[]; extern void __user __kernel_sigreturn; extern void __user __kernel_rt_sigreturn; +/* + * These symbols are defined by vdso32.S to mark the bounds + * of the ELF DSO images included therein. + */ +extern const char vdso32_int80_start, vdso32_int80_end; +extern const char vdso32_syscall_start, vdso32_syscall_end; +extern const char vdso32_sysenter_start, vdso32_sysenter_end; + #endif /* asm-x86/vdso.h */ -- cgit v1.2.3 From 74d4affde8feb8d5bdebf7fba8e90e4eae3b7b1d Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 7 Jul 2008 12:07:50 -0700 Subject: x86/paravirt: add hooks for spinlock operations Ticket spinlocks have absolutely ghastly worst-case performance characteristics in a virtual environment. If there is any contention for physical CPUs (ie, there are more runnable vcpus than cpus), then ticket locks can cause the system to end up spending 90+% of its time spinning. The problem is that (v)cpus waiting on a ticket spinlock will be granted access to the lock in strict order they got their tickets. If the hypervisor scheduler doesn't give the vcpus time in that order, they will burn timeslices waiting for the scheduler to give the right vcpu some time. In the worst case it could take O(n^2) vcpu scheduler timeslices for everyone waiting on the lock to get it, not counting new cpus trying to take the lock while the log-jam is sorted out. These hooks allow a paravirt backend to replace the spinlock implementation. At the very least, this could revert the implementation back to the old lock algorithm, which allows the next scheduled vcpu to take the lock, and has basically fairly good performance. It also allows the spinlocks to take advantages of the hypervisor features to make locks more efficient (spin and block, for example). The cost to native execution is an extra direct call when using a spinlock function. There's no overhead if CONFIG_PARAVIRT is turned off. The lock structure is fixed at a single "unsigned int", initialized to zero, but the spinlock implementation can use it as it wishes. Thanks to Thomas Friebel's Xen Summit talk "Preventing Guests from Spinning Around" for pointing out this problem. Signed-off-by: Jeremy Fitzhardinge Cc: Jens Axboe Cc: Peter Zijlstra Cc: Christoph Lameter Cc: Petr Tesarik Cc: Virtualization Cc: Xen devel Cc: Thomas Friebel Cc: Nick Piggin Signed-off-by: Ingo Molnar --- arch/x86/kernel/paravirt.c | 10 ++++++++ include/asm-x86/paravirt.h | 37 +++++++++++++++++++++++++++ include/asm-x86/spinlock.h | 55 +++++++++++++++++++++++++++++----------- include/asm-x86/spinlock_types.h | 2 +- 4 files changed, 88 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 2963ab5d91ee..f33816868707 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -124,6 +124,7 @@ static void *get_call_destination(u8 type) .pv_irq_ops = pv_irq_ops, .pv_apic_ops = pv_apic_ops, .pv_mmu_ops = pv_mmu_ops, + .pv_lock_ops = pv_lock_ops, }; return *((void **)&tmpl + type); } @@ -450,6 +451,15 @@ struct pv_mmu_ops pv_mmu_ops = { .set_fixmap = native_set_fixmap, }; +struct pv_lock_ops pv_lock_ops = { + .spin_is_locked = __ticket_spin_is_locked, + .spin_is_contended = __ticket_spin_is_contended, + + .spin_lock = __ticket_spin_lock, + .spin_trylock = __ticket_spin_trylock, + .spin_unlock = __ticket_spin_unlock, +}; + EXPORT_SYMBOL_GPL(pv_time_ops); EXPORT_SYMBOL (pv_cpu_ops); EXPORT_SYMBOL (pv_mmu_ops); diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index eef8095a09dc..feb6bb66c5e2 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -326,6 +326,15 @@ struct pv_mmu_ops { unsigned long phys, pgprot_t flags); }; +struct raw_spinlock; +struct pv_lock_ops { + int (*spin_is_locked)(struct raw_spinlock *lock); + int (*spin_is_contended)(struct raw_spinlock *lock); + void (*spin_lock)(struct raw_spinlock *lock); + int (*spin_trylock)(struct raw_spinlock *lock); + void (*spin_unlock)(struct raw_spinlock *lock); +}; + /* This contains all the paravirt structures: we get a convenient * number for each function using the offset which we use to indicate * what to patch. */ @@ -336,6 +345,7 @@ struct paravirt_patch_template { struct pv_irq_ops pv_irq_ops; struct pv_apic_ops pv_apic_ops; struct pv_mmu_ops pv_mmu_ops; + struct pv_lock_ops pv_lock_ops; }; extern struct pv_info pv_info; @@ -345,6 +355,7 @@ extern struct pv_cpu_ops pv_cpu_ops; extern struct pv_irq_ops pv_irq_ops; extern struct pv_apic_ops pv_apic_ops; extern struct pv_mmu_ops pv_mmu_ops; +extern struct pv_lock_ops pv_lock_ops; #define PARAVIRT_PATCH(x) \ (offsetof(struct paravirt_patch_template, x) / sizeof(void *)) @@ -1374,6 +1385,31 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx, void _paravirt_nop(void); #define paravirt_nop ((void *)_paravirt_nop) +static inline int __raw_spin_is_locked(struct raw_spinlock *lock) +{ + return PVOP_CALL1(int, pv_lock_ops.spin_is_locked, lock); +} + +static inline int __raw_spin_is_contended(struct raw_spinlock *lock) +{ + return PVOP_CALL1(int, pv_lock_ops.spin_is_contended, lock); +} + +static __always_inline void __raw_spin_lock(struct raw_spinlock *lock) +{ + return PVOP_VCALL1(pv_lock_ops.spin_lock, lock); +} + +static __always_inline int __raw_spin_trylock(struct raw_spinlock *lock) +{ + return PVOP_CALL1(int, pv_lock_ops.spin_trylock, lock); +} + +static __always_inline void __raw_spin_unlock(struct raw_spinlock *lock) +{ + return PVOP_VCALL1(pv_lock_ops.spin_unlock, lock); +} + /* These all sit in the .parainstructions section to tell us what to patch. */ struct paravirt_patch_site { u8 *instr; /* original instructions */ @@ -1458,6 +1494,7 @@ static inline unsigned long __raw_local_irq_save(void) return f; } + /* Make sure as little as possible of this mess escapes. */ #undef PARAVIRT_CALL #undef __PVOP_CALL diff --git a/include/asm-x86/spinlock.h b/include/asm-x86/spinlock.h index 21e89bf92f1c..9726144cdaba 100644 --- a/include/asm-x86/spinlock.h +++ b/include/asm-x86/spinlock.h @@ -6,7 +6,7 @@ #include #include #include - +#include /* * Your basic SMP spinlocks, allowing only a single CPU anywhere * @@ -54,21 +54,21 @@ * much between them in performance though, especially as locks are out of line. */ #if (NR_CPUS < 256) -static inline int __raw_spin_is_locked(raw_spinlock_t *lock) +static inline int __ticket_spin_is_locked(raw_spinlock_t *lock) { int tmp = ACCESS_ONCE(lock->slock); return (((tmp >> 8) & 0xff) != (tmp & 0xff)); } -static inline int __raw_spin_is_contended(raw_spinlock_t *lock) +static inline int __ticket_spin_is_contended(raw_spinlock_t *lock) { int tmp = ACCESS_ONCE(lock->slock); return (((tmp >> 8) & 0xff) - (tmp & 0xff)) > 1; } -static __always_inline void __raw_spin_lock(raw_spinlock_t *lock) +static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock) { short inc = 0x0100; @@ -87,9 +87,7 @@ static __always_inline void __raw_spin_lock(raw_spinlock_t *lock) : "memory", "cc"); } -#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) - -static __always_inline int __raw_spin_trylock(raw_spinlock_t *lock) +static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock) { int tmp; short new; @@ -110,7 +108,7 @@ static __always_inline int __raw_spin_trylock(raw_spinlock_t *lock) return tmp; } -static __always_inline void __raw_spin_unlock(raw_spinlock_t *lock) +static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock) { asm volatile(UNLOCK_LOCK_PREFIX "incb %0" : "+m" (lock->slock) @@ -118,21 +116,21 @@ static __always_inline void __raw_spin_unlock(raw_spinlock_t *lock) : "memory", "cc"); } #else -static inline int __raw_spin_is_locked(raw_spinlock_t *lock) +static inline int __ticket_spin_is_locked(raw_spinlock_t *lock) { int tmp = ACCESS_ONCE(lock->slock); return (((tmp >> 16) & 0xffff) != (tmp & 0xffff)); } -static inline int __raw_spin_is_contended(raw_spinlock_t *lock) +static inline int __ticket_spin_is_contended(raw_spinlock_t *lock) { int tmp = ACCESS_ONCE(lock->slock); return (((tmp >> 16) & 0xffff) - (tmp & 0xffff)) > 1; } -static __always_inline void __raw_spin_lock(raw_spinlock_t *lock) +static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock) { int inc = 0x00010000; int tmp; @@ -153,9 +151,7 @@ static __always_inline void __raw_spin_lock(raw_spinlock_t *lock) : "memory", "cc"); } -#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) - -static __always_inline int __raw_spin_trylock(raw_spinlock_t *lock) +static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock) { int tmp; int new; @@ -177,7 +173,7 @@ static __always_inline int __raw_spin_trylock(raw_spinlock_t *lock) return tmp; } -static __always_inline void __raw_spin_unlock(raw_spinlock_t *lock) +static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock) { asm volatile(UNLOCK_LOCK_PREFIX "incw %0" : "+m" (lock->slock) @@ -186,6 +182,35 @@ static __always_inline void __raw_spin_unlock(raw_spinlock_t *lock) } #endif +#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) + +#ifndef CONFIG_PARAVIRT +static inline int __raw_spin_is_locked(raw_spinlock_t *lock) +{ + return __ticket_spin_is_locked(lock); +} + +static inline int __raw_spin_is_contended(raw_spinlock_t *lock) +{ + return __ticket_spin_is_contended(lock); +} + +static __always_inline void __raw_spin_lock(raw_spinlock_t *lock) +{ + __ticket_spin_lock(lock); +} + +static __always_inline int __raw_spin_trylock(raw_spinlock_t *lock) +{ + return __ticket_spin_trylock(lock); +} + +static __always_inline void __raw_spin_unlock(raw_spinlock_t *lock) +{ + __ticket_spin_unlock(lock); +} +#endif /* CONFIG_PARAVIRT */ + static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock) { while (__raw_spin_is_locked(lock)) diff --git a/include/asm-x86/spinlock_types.h b/include/asm-x86/spinlock_types.h index 9029cf78cf5d..06c071c9eee9 100644 --- a/include/asm-x86/spinlock_types.h +++ b/include/asm-x86/spinlock_types.h @@ -5,7 +5,7 @@ # error "please don't include this file directly" #endif -typedef struct { +typedef struct raw_spinlock { unsigned int slock; } raw_spinlock_t; -- cgit v1.2.3 From 8efcbab674de2bee45a2e4cdf97de16b8e609ac8 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 7 Jul 2008 12:07:51 -0700 Subject: paravirt: introduce a "lock-byte" spinlock implementation Implement a version of the old spinlock algorithm, in which everyone spins waiting for a lock byte. In order to be compatible with the ticket-lock's use of a zero initializer, this uses the convention of '0' for unlocked and '1' for locked. This algorithm is much better than ticket locks in a virtual envionment, because it doesn't interact badly with the vcpu scheduler. If there are multiple vcpus spinning on a lock and the lock is released, the next vcpu to be scheduled will take the lock, rather than cycling around until the next ticketed vcpu gets it. To use this, you must call paravirt_use_bytelocks() very early, before any spinlocks have been taken. Signed-off-by: Jeremy Fitzhardinge Cc: Jens Axboe Cc: Peter Zijlstra Cc: Christoph Lameter Cc: Petr Tesarik Cc: Virtualization Cc: Xen devel Cc: Thomas Friebel Cc: Nick Piggin Signed-off-by: Ingo Molnar --- arch/x86/kernel/paravirt.c | 9 +++++++ include/asm-x86/paravirt.h | 2 ++ include/asm-x86/spinlock.h | 65 +++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 75 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index f33816868707..bba4041bb7ff 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -268,6 +268,15 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void) return __get_cpu_var(paravirt_lazy_mode); } +void __init paravirt_use_bytelocks(void) +{ + pv_lock_ops.spin_is_locked = __byte_spin_is_locked; + pv_lock_ops.spin_is_contended = __byte_spin_is_contended; + pv_lock_ops.spin_lock = __byte_spin_lock; + pv_lock_ops.spin_trylock = __byte_spin_trylock; + pv_lock_ops.spin_unlock = __byte_spin_unlock; +} + struct pv_info pv_info = { .name = "bare hardware", .paravirt_enabled = 0, diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index feb6bb66c5e2..65ed02cdbbd7 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1385,6 +1385,8 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx, void _paravirt_nop(void); #define paravirt_nop ((void *)_paravirt_nop) +void paravirt_use_bytelocks(void); + static inline int __raw_spin_is_locked(struct raw_spinlock *lock) { return PVOP_CALL1(int, pv_lock_ops.spin_is_locked, lock); diff --git a/include/asm-x86/spinlock.h b/include/asm-x86/spinlock.h index 9726144cdaba..4f9a9861799a 100644 --- a/include/asm-x86/spinlock.h +++ b/include/asm-x86/spinlock.h @@ -184,7 +184,70 @@ static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock) #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) -#ifndef CONFIG_PARAVIRT +#ifdef CONFIG_PARAVIRT +/* + * Define virtualization-friendly old-style lock byte lock, for use in + * pv_lock_ops if desired. + * + * This differs from the pre-2.6.24 spinlock by always using xchgb + * rather than decb to take the lock; this allows it to use a + * zero-initialized lock structure. It also maintains a 1-byte + * contention counter, so that we can implement + * __byte_spin_is_contended. + */ +struct __byte_spinlock { + s8 lock; + s8 spinners; +}; + +static inline int __byte_spin_is_locked(raw_spinlock_t *lock) +{ + struct __byte_spinlock *bl = (struct __byte_spinlock *)lock; + return bl->lock != 0; +} + +static inline int __byte_spin_is_contended(raw_spinlock_t *lock) +{ + struct __byte_spinlock *bl = (struct __byte_spinlock *)lock; + return bl->spinners != 0; +} + +static inline void __byte_spin_lock(raw_spinlock_t *lock) +{ + struct __byte_spinlock *bl = (struct __byte_spinlock *)lock; + s8 val = 1; + + asm("1: xchgb %1, %0\n" + " test %1,%1\n" + " jz 3f\n" + " " LOCK_PREFIX "incb %2\n" + "2: rep;nop\n" + " cmpb $1, %0\n" + " je 2b\n" + " " LOCK_PREFIX "decb %2\n" + " jmp 1b\n" + "3:" + : "+m" (bl->lock), "+q" (val), "+m" (bl->spinners): : "memory"); +} + +static inline int __byte_spin_trylock(raw_spinlock_t *lock) +{ + struct __byte_spinlock *bl = (struct __byte_spinlock *)lock; + u8 old = 1; + + asm("xchgb %1,%0" + : "+m" (bl->lock), "+q" (old) : : "memory"); + + return old == 0; +} + +static inline void __byte_spin_unlock(raw_spinlock_t *lock) +{ + struct __byte_spinlock *bl = (struct __byte_spinlock *)lock; + smp_wmb(); + bl->lock = 0; +} +#else /* !CONFIG_PARAVIRT */ static inline int __raw_spin_is_locked(raw_spinlock_t *lock) { return __ticket_spin_is_locked(lock); -- cgit v1.2.3 From 2d9e1e2f58b5612aa4eab0ab54c84308a29dbd79 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 7 Jul 2008 12:07:53 -0700 Subject: xen: implement Xen-specific spinlocks The standard ticket spinlocks are very expensive in a virtual environment, because their performance depends on Xen's scheduler giving vcpus time in the order that they're supposed to take the spinlock. This implements a Xen-specific spinlock, which should be much more efficient. The fast-path is essentially the old Linux-x86 locks, using a single lock byte. The locker decrements the byte; if the result is 0, then they have the lock. If the lock is negative, then locker must spin until the lock is positive again. When there's contention, the locker spin for 2^16[*] iterations waiting to get the lock. If it fails to get the lock in that time, it adds itself to the contention count in the lock and blocks on a per-cpu event channel. When unlocking the spinlock, the locker looks to see if there's anyone blocked waiting for the lock by checking for a non-zero waiter count. If there's a waiter, it traverses the per-cpu "lock_spinners" variable, which contains which lock each CPU is waiting on. It picks one CPU waiting on the lock and sends it an event to wake it up. This allows efficient fast-path spinlock operation, while allowing spinning vcpus to give up their processor time while waiting for a contended lock. [*] 2^16 iterations is threshold at which 98% locks have been taken according to Thomas Friebel's Xen Summit talk "Preventing Guests from Spinning Around". Therefore, we'd expect the lock and unlock slow paths will only be entered 2% of the time. Signed-off-by: Jeremy Fitzhardinge Cc: Jens Axboe Cc: Peter Zijlstra Cc: Christoph Lameter Cc: Petr Tesarik Cc: Virtualization Cc: Xen devel Cc: Thomas Friebel Cc: Nick Piggin Signed-off-by: Ingo Molnar --- arch/x86/xen/smp.c | 172 ++++++++++++++++++++++++++++++++++++++++++- drivers/xen/events.c | 27 +++++++ include/asm-x86/xen/events.h | 1 + include/xen/events.h | 7 ++ 4 files changed, 206 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index a8ebafc09d47..e693812ac59a 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -15,6 +15,7 @@ * This does not handle HOTPLUG_CPU yet. */ #include +#include #include #include @@ -35,6 +36,8 @@ #include "xen-ops.h" #include "mmu.h" +static void __cpuinit xen_init_lock_cpu(int cpu); + cpumask_t xen_cpu_initialized_map; static DEFINE_PER_CPU(int, resched_irq); @@ -179,6 +182,8 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus) { unsigned cpu; + xen_init_lock_cpu(0); + smp_store_cpu_info(0); cpu_data(0).x86_max_cores = 1; set_cpu_sibling_map(0); @@ -301,6 +306,7 @@ static int __cpuinit xen_cpu_up(unsigned int cpu) clear_tsk_thread_flag(idle, TIF_FORK); #endif xen_setup_timer(cpu); + xen_init_lock_cpu(cpu); per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; @@ -413,6 +419,170 @@ static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } +struct xen_spinlock { + unsigned char lock; /* 0 -> free; 1 -> locked */ + unsigned short spinners; /* count of waiting cpus */ +}; + +static int xen_spin_is_locked(struct raw_spinlock *lock) +{ + struct xen_spinlock *xl = (struct xen_spinlock *)lock; + + return xl->lock != 0; +} + +static int xen_spin_is_contended(struct raw_spinlock *lock) +{ + struct xen_spinlock *xl = (struct xen_spinlock *)lock; + + /* Not strictly true; this is only the count of contended + lock-takers entering the slow path. */ + return xl->spinners != 0; +} + +static int xen_spin_trylock(struct raw_spinlock *lock) +{ + struct xen_spinlock *xl = (struct xen_spinlock *)lock; + u8 old = 1; + + asm("xchgb %b0,%1" + : "+q" (old), "+m" (xl->lock) : : "memory"); + + return old == 0; +} + +static DEFINE_PER_CPU(int, lock_kicker_irq) = -1; +static DEFINE_PER_CPU(struct xen_spinlock *, lock_spinners); + +static inline void spinning_lock(struct xen_spinlock *xl) +{ + __get_cpu_var(lock_spinners) = xl; + wmb(); /* set lock of interest before count */ + asm(LOCK_PREFIX " incw %0" + : "+m" (xl->spinners) : : "memory"); +} + +static inline void unspinning_lock(struct xen_spinlock *xl) +{ + asm(LOCK_PREFIX " decw %0" + : "+m" (xl->spinners) : : "memory"); + wmb(); /* decrement count before clearing lock */ + __get_cpu_var(lock_spinners) = NULL; +} + +static noinline int xen_spin_lock_slow(struct raw_spinlock *lock) +{ + struct xen_spinlock *xl = (struct xen_spinlock *)lock; + int irq = __get_cpu_var(lock_kicker_irq); + int ret; + + /* If kicker interrupts not initialized yet, just spin */ + if (irq == -1) + return 0; + + /* announce we're spinning */ + spinning_lock(xl); + + /* clear pending */ + xen_clear_irq_pending(irq); + + /* check again make sure it didn't become free while + we weren't looking */ + ret = xen_spin_trylock(lock); + if (ret) + goto out; + + /* block until irq becomes pending */ + xen_poll_irq(irq); + kstat_this_cpu.irqs[irq]++; + +out: + unspinning_lock(xl); + return ret; +} + +static void xen_spin_lock(struct raw_spinlock *lock) +{ + struct xen_spinlock *xl = (struct xen_spinlock *)lock; + int timeout; + u8 oldval; + + do { + timeout = 1 << 10; + + asm("1: xchgb %1,%0\n" + " testb %1,%1\n" + " jz 3f\n" + "2: rep;nop\n" + " cmpb $0,%0\n" + " je 1b\n" + " dec %2\n" + " jnz 2b\n" + "3:\n" + : "+m" (xl->lock), "=q" (oldval), "+r" (timeout) + : "1" (1) + : "memory"); + + } while (unlikely(oldval != 0 && !xen_spin_lock_slow(lock))); +} + +static noinline void xen_spin_unlock_slow(struct xen_spinlock *xl) +{ + int cpu; + + for_each_online_cpu(cpu) { + /* XXX should mix up next cpu selection */ + if (per_cpu(lock_spinners, cpu) == xl) { + xen_send_IPI_one(cpu, XEN_SPIN_UNLOCK_VECTOR); + break; + } + } +} + +static void xen_spin_unlock(struct raw_spinlock *lock) +{ + struct xen_spinlock *xl = (struct xen_spinlock *)lock; + + smp_wmb(); /* make sure no writes get moved after unlock */ + xl->lock = 0; /* release lock */ + + /* make sure unlock happens before kick */ + barrier(); + + if (unlikely(xl->spinners)) + xen_spin_unlock_slow(xl); +} + +static __cpuinit void xen_init_lock_cpu(int cpu) +{ + int irq; + const char *name; + + name = kasprintf(GFP_KERNEL, "spinlock%d", cpu); + irq = bind_ipi_to_irqhandler(XEN_SPIN_UNLOCK_VECTOR, + cpu, + xen_reschedule_interrupt, + IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING, + name, + NULL); + + if (irq >= 0) { + disable_irq(irq); /* make sure it's never delivered */ + per_cpu(lock_kicker_irq, cpu) = irq; + } + + printk("cpu %d spinlock event irq %d\n", cpu, irq); +} + +static void __init xen_init_spinlocks(void) +{ + pv_lock_ops.spin_is_locked = xen_spin_is_locked; + pv_lock_ops.spin_is_contended = xen_spin_is_contended; + pv_lock_ops.spin_lock = xen_spin_lock; + pv_lock_ops.spin_trylock = xen_spin_trylock; + pv_lock_ops.spin_unlock = xen_spin_unlock; +} + static const struct smp_ops xen_smp_ops __initdata = { .smp_prepare_boot_cpu = xen_smp_prepare_boot_cpu, .smp_prepare_cpus = xen_smp_prepare_cpus, @@ -430,5 +600,5 @@ void __init xen_smp_init(void) { smp_ops = xen_smp_ops; xen_fill_possible_map(); - paravirt_use_bytelocks(); + xen_init_spinlocks(); } diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 332dd63750a0..0e0c28574af8 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -734,6 +734,33 @@ static void restore_cpu_ipis(unsigned int cpu) } } +/* Clear an irq's pending state, in preparation for polling on it */ +void xen_clear_irq_pending(int irq) +{ + int evtchn = evtchn_from_irq(irq); + + if (VALID_EVTCHN(evtchn)) + clear_evtchn(evtchn); +} + +/* Poll waiting for an irq to become pending. In the usual case, the + irq will be disabled so it won't deliver an interrupt. */ +void xen_poll_irq(int irq) +{ + evtchn_port_t evtchn = evtchn_from_irq(irq); + + if (VALID_EVTCHN(evtchn)) { + struct sched_poll poll; + + poll.nr_ports = 1; + poll.timeout = 0; + poll.ports = &evtchn; + + if (HYPERVISOR_sched_op(SCHEDOP_poll, &poll) != 0) + BUG(); + } +} + void xen_irq_resume(void) { unsigned int cpu, irq, evtchn; diff --git a/include/asm-x86/xen/events.h b/include/asm-x86/xen/events.h index f8d57ea1f05f..8ded74720024 100644 --- a/include/asm-x86/xen/events.h +++ b/include/asm-x86/xen/events.h @@ -5,6 +5,7 @@ enum ipi_vector { XEN_RESCHEDULE_VECTOR, XEN_CALL_FUNCTION_VECTOR, XEN_CALL_FUNCTION_SINGLE_VECTOR, + XEN_SPIN_UNLOCK_VECTOR, XEN_NR_IPIS, }; diff --git a/include/xen/events.h b/include/xen/events.h index 67c4436554a9..4680ff3fbc91 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -44,4 +44,11 @@ extern void notify_remote_via_irq(int irq); extern void xen_irq_resume(void); +/* Clear an irq's pending state, in preparation for polling on it */ +void xen_clear_irq_pending(int irq); + +/* Poll waiting for an irq to become pending. In the usual case, the + irq will be disabled so it won't deliver an interrupt. */ +void xen_poll_irq(int irq); + #endif /* _XEN_EVENTS_H */ -- cgit v1.2.3 From 4bb689eee12ceb6d669a0c9a519037c049a8af38 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 9 Jul 2008 14:33:33 +0200 Subject: x86: paravirt spinlocks, !CONFIG_SMP build fixes Signed-off-by: Ingo Molnar --- arch/x86/kernel/paravirt.c | 4 ++++ include/asm-x86/paravirt.h | 4 ++++ 2 files changed, 8 insertions(+) (limited to 'include') diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index bba4041bb7ff..6aa8aed06d54 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -270,11 +270,13 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void) void __init paravirt_use_bytelocks(void) { +#ifdef CONFIG_SMP pv_lock_ops.spin_is_locked = __byte_spin_is_locked; pv_lock_ops.spin_is_contended = __byte_spin_is_contended; pv_lock_ops.spin_lock = __byte_spin_lock; pv_lock_ops.spin_trylock = __byte_spin_trylock; pv_lock_ops.spin_unlock = __byte_spin_unlock; +#endif } struct pv_info pv_info = { @@ -461,12 +463,14 @@ struct pv_mmu_ops pv_mmu_ops = { }; struct pv_lock_ops pv_lock_ops = { +#ifdef CONFIG_SMP .spin_is_locked = __ticket_spin_is_locked, .spin_is_contended = __ticket_spin_is_contended, .spin_lock = __ticket_spin_lock, .spin_trylock = __ticket_spin_trylock, .spin_unlock = __ticket_spin_unlock, +#endif }; EXPORT_SYMBOL_GPL(pv_time_ops); diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 65ed02cdbbd7..b2aba8fdaae7 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1387,6 +1387,8 @@ void _paravirt_nop(void); void paravirt_use_bytelocks(void); +#ifdef CONFIG_SMP + static inline int __raw_spin_is_locked(struct raw_spinlock *lock) { return PVOP_CALL1(int, pv_lock_ops.spin_is_locked, lock); @@ -1412,6 +1414,8 @@ static __always_inline void __raw_spin_unlock(struct raw_spinlock *lock) return PVOP_VCALL1(pv_lock_ops.spin_unlock, lock); } +#endif + /* These all sit in the .parainstructions section to tell us what to patch. */ struct paravirt_patch_site { u8 *instr; /* original instructions */ -- cgit v1.2.3 From 64f097331928b01d704047c1dbc738bb6d2a9bf9 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 9 Jul 2008 01:33:14 -0700 Subject: x86 ptrace: unify TIF_SINGLESTEP This unifies the treatment of TIF_SINGLESTEP on i386 and x86_64. The bit is now excluded from _TIF_WORK_MASK on i386 as it has been on x86_64. This means the do_notify_resume() path using it is never used, so TIF_SINGLESTEP is not cleared on returning to user mode. Both now leave TIF_SINGLESTEP set when returning to user, so that it's already set on an int $0x80 system call entry. This removes the need for testing TF on the system_call path. Doing it this way fixes the regression for PTRACE_SINGLESTEP into a sigreturn syscall, introduced by commit 1e2e99f0e4aa6363e8515ed17011c210c8f1b52a. The clear_TF_reenable case that sets TIF_SINGLESTEP can only happen on a non-exception kernel entry, i.e. sysenter/syscall instruction. That will always get to the syscall exit tracing path. Signed-off-by: Roland McGrath --- arch/x86/kernel/entry_32.S | 4 ---- arch/x86/kernel/signal_32.c | 6 ------ arch/x86/kernel/signal_64.c | 6 ------ include/asm-x86/thread_info.h | 4 ++-- 4 files changed, 2 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index 6bc07f0f1202..0ad987d02b72 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -383,10 +383,6 @@ syscall_exit: # setting need_resched or sigpending # between sampling and the iret TRACE_IRQS_OFF - testl $X86_EFLAGS_TF,PT_EFLAGS(%esp) # If tracing set singlestep flag on exit - jz no_singlestep - orl $_TIF_SINGLESTEP,TI_flags(%ebp) -no_singlestep: movl TI_flags(%ebp), %ecx testw $_TIF_ALLWORK_MASK, %cx # current->work jne syscall_exit_work diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c index d92373630963..295b5f5c9389 100644 --- a/arch/x86/kernel/signal_32.c +++ b/arch/x86/kernel/signal_32.c @@ -657,12 +657,6 @@ static void do_signal(struct pt_regs *regs) void do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) { - /* Pending single-step? */ - if (thread_info_flags & _TIF_SINGLESTEP) { - regs->flags |= X86_EFLAGS_TF; - clear_thread_flag(TIF_SINGLESTEP); - } - /* deal with pending signal delivery */ if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs); diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c index e53b267662e7..bf87684474f1 100644 --- a/arch/x86/kernel/signal_64.c +++ b/arch/x86/kernel/signal_64.c @@ -487,12 +487,6 @@ static void do_signal(struct pt_regs *regs) void do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) { - /* Pending single-step? */ - if (thread_info_flags & _TIF_SINGLESTEP) { - regs->flags |= X86_EFLAGS_TF; - clear_thread_flag(TIF_SINGLESTEP); - } - #ifdef CONFIG_X86_MCE /* notify userspace of pending MCEs */ if (thread_info_flags & _TIF_MCE_NOTIFY) diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h index 895339d2bc0b..fb8d3cdf143e 100644 --- a/include/asm-x86/thread_info.h +++ b/include/asm-x86/thread_info.h @@ -124,7 +124,7 @@ struct thread_info { /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK \ (0x0000FFFF & \ - ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP| \ + ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT| \ _TIF_SECCOMP|_TIF_SYSCALL_EMU)) /* work to do on any return to user space */ @@ -132,7 +132,7 @@ struct thread_info { /* Only used for 64 bit */ #define _TIF_DO_NOTIFY_MASK \ - (_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED) + (_TIF_SIGPENDING|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED) /* flags to check in __switch_to() */ #define _TIF_WORK_CTXSW \ -- cgit v1.2.3 From d4d67150165df8bf1cc05e532f6efca96f907cab Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 9 Jul 2008 02:38:07 -0700 Subject: x86 ptrace: unify syscall tracing This unifies and cleans up the syscall tracing code on i386 and x86_64. Using a single function for entry and exit tracing on 32-bit made the do_syscall_trace() into some terrible spaghetti. The logic is clear and simple using separate syscall_trace_enter() and syscall_trace_leave() functions as on 64-bit. The unification adds PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP support on x86_64, for 32-bit ptrace() callers and for 64-bit ptrace() callers tracing either 32-bit or 64-bit tasks. It behaves just like 32-bit. Changing syscall_trace_enter() to return the syscall number shortens all the assembly paths, while adding the SYSEMU feature in a simple way. Signed-off-by: Roland McGrath --- arch/x86/ia32/ia32entry.S | 17 ++--- arch/x86/kernel/entry_32.S | 19 +++--- arch/x86/kernel/entry_64.S | 14 +++-- arch/x86/kernel/ptrace.c | 141 ++++++++++++++---------------------------- include/asm-x86/calling.h | 6 +- include/asm-x86/ptrace-abi.h | 6 +- include/asm-x86/thread_info.h | 17 ++--- 7 files changed, 88 insertions(+), 132 deletions(-) (limited to 'include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 20371d0635e4..8796d1905255 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -37,6 +37,11 @@ movq %rax,R8(%rsp) .endm + /* + * Reload arg registers from stack in case ptrace changed them. + * We don't reload %eax because syscall_trace_enter() returned + * the value it wants us to use in the table lookup. + */ .macro LOAD_ARGS32 offset movl \offset(%rsp),%r11d movl \offset+8(%rsp),%r10d @@ -46,7 +51,6 @@ movl \offset+48(%rsp),%edx movl \offset+56(%rsp),%esi movl \offset+64(%rsp),%edi - movl \offset+72(%rsp),%eax .endm .macro CFI_STARTPROC32 simple @@ -137,13 +141,12 @@ ENTRY(ia32_sysenter_target) .previous GET_THREAD_INFO(%r10) orl $TS_COMPAT,TI_status(%r10) - testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \ - TI_flags(%r10) + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10) CFI_REMEMBER_STATE jnz sysenter_tracesys -sysenter_do_call: cmpl $(IA32_NR_syscalls-1),%eax ja ia32_badsys +sysenter_do_call: IA32_ARG_FIXUP 1 call *ia32_sys_call_table(,%rax,8) movq %rax,RAX-ARGOFFSET(%rsp) @@ -242,8 +245,7 @@ ENTRY(ia32_cstar_target) .previous GET_THREAD_INFO(%r10) orl $TS_COMPAT,TI_status(%r10) - testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \ - TI_flags(%r10) + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10) CFI_REMEMBER_STATE jnz cstar_tracesys cstar_do_call: @@ -336,8 +338,7 @@ ENTRY(ia32_syscall) SAVE_ARGS 0,0,1 GET_THREAD_INFO(%r10) orl $TS_COMPAT,TI_status(%r10) - testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \ - TI_flags(%r10) + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10) jnz ia32_tracesys ia32_do_syscall: cmpl $(IA32_NR_syscalls-1),%eax diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index 0ad987d02b72..cadf73f70d33 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -332,7 +332,7 @@ sysenter_past_esp: GET_THREAD_INFO(%ebp) /* Note, _TIF_SECCOMP is bit number 8, and so it needs testw and not testb */ - testw $(_TIF_SYSCALL_EMU|_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT),TI_flags(%ebp) + testw $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp) jnz syscall_trace_entry cmpl $(nr_syscalls), %eax jae syscall_badsys @@ -370,7 +370,7 @@ ENTRY(system_call) GET_THREAD_INFO(%ebp) # system call tracing in operation / emulation /* Note, _TIF_SECCOMP is bit number 8, and so it needs testw and not testb */ - testw $(_TIF_SYSCALL_EMU|_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT),TI_flags(%ebp) + testw $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp) jnz syscall_trace_entry cmpl $(nr_syscalls), %eax jae syscall_badsys @@ -510,12 +510,8 @@ END(work_pending) syscall_trace_entry: movl $-ENOSYS,PT_EAX(%esp) movl %esp, %eax - xorl %edx,%edx - call do_syscall_trace - cmpl $0, %eax - jne resume_userspace # ret != 0 -> running under PTRACE_SYSEMU, - # so must skip actual syscall - movl PT_ORIG_EAX(%esp), %eax + call syscall_trace_enter + /* What it returned is what we'll actually use. */ cmpl $(nr_syscalls), %eax jnae syscall_call jmp syscall_exit @@ -524,14 +520,13 @@ END(syscall_trace_entry) # perform syscall exit tracing ALIGN syscall_exit_work: - testb $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP), %cl + testb $_TIF_WORK_SYSCALL_EXIT, %cl jz work_pending TRACE_IRQS_ON - ENABLE_INTERRUPTS(CLBR_ANY) # could let do_syscall_trace() call + ENABLE_INTERRUPTS(CLBR_ANY) # could let syscall_trace_leave() call # schedule() instead movl %esp, %eax - movl $1, %edx - call do_syscall_trace + call syscall_trace_leave jmp resume_userspace END(syscall_exit_work) CFI_ENDPROC diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index ae63e584c340..63001c6ecf6d 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -349,8 +349,7 @@ ENTRY(system_call_after_swapgs) movq %rcx,RIP-ARGOFFSET(%rsp) CFI_REL_OFFSET rip,RIP-ARGOFFSET GET_THREAD_INFO(%rcx) - testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \ - TI_flags(%rcx) + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx) jnz tracesys cmpq $__NR_syscall_max,%rax ja badsys @@ -430,7 +429,12 @@ tracesys: FIXUP_TOP_OF_STACK %rdi movq %rsp,%rdi call syscall_trace_enter - LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */ + /* + * Reload arg registers from stack in case ptrace changed them. + * We don't reload %rax because syscall_trace_enter() returned + * the value it wants us to use in the table lookup. + */ + LOAD_ARGS ARGOFFSET, 1 RESTORE_REST cmpq $__NR_syscall_max,%rax ja int_ret_from_sys_call /* RAX(%rsp) set to -ENOSYS above */ @@ -483,7 +487,7 @@ int_very_careful: ENABLE_INTERRUPTS(CLBR_NONE) SAVE_REST /* Check for syscall exit trace */ - testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP),%edx + testl $_TIF_WORK_SYSCALL_EXIT,%edx jz int_signal pushq %rdi CFI_ADJUST_CFA_OFFSET 8 @@ -491,7 +495,7 @@ int_very_careful: call syscall_trace_leave popq %rdi CFI_ADJUST_CFA_OFFSET -8 - andl $~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP),%edi + andl $~(_TIF_WORK_SYSCALL_EXIT|_TIF_SYSCALL_EMU),%edi jmp int_restore_rest int_signal: diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 77040b6070e1..34e77b16a42a 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -1357,8 +1357,6 @@ const struct user_regset_view *task_user_regset_view(struct task_struct *task) #endif } -#ifdef CONFIG_X86_32 - void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code) { struct siginfo info; @@ -1377,89 +1375,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code) force_sig_info(SIGTRAP, &info, tsk); } -/* notification of system call entry/exit - * - triggered by current->work.syscall_trace - */ -int do_syscall_trace(struct pt_regs *regs, int entryexit) -{ - int is_sysemu = test_thread_flag(TIF_SYSCALL_EMU); - /* - * With TIF_SYSCALL_EMU set we want to ignore TIF_SINGLESTEP for syscall - * interception - */ - int is_singlestep = !is_sysemu && test_thread_flag(TIF_SINGLESTEP); - int ret = 0; - - /* do the secure computing check first */ - if (!entryexit) - secure_computing(regs->orig_ax); - - if (unlikely(current->audit_context)) { - if (entryexit) - audit_syscall_exit(AUDITSC_RESULT(regs->ax), - regs->ax); - /* Debug traps, when using PTRACE_SINGLESTEP, must be sent only - * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is - * not used, entry.S will call us only on syscall exit, not - * entry; so when TIF_SYSCALL_AUDIT is used we must avoid - * calling send_sigtrap() on syscall entry. - * - * Note that when PTRACE_SYSEMU_SINGLESTEP is used, - * is_singlestep is false, despite his name, so we will still do - * the correct thing. - */ - else if (is_singlestep) - goto out; - } - - if (!(current->ptrace & PT_PTRACED)) - goto out; - - /* If a process stops on the 1st tracepoint with SYSCALL_TRACE - * and then is resumed with SYSEMU_SINGLESTEP, it will come in - * here. We have to check this and return */ - if (is_sysemu && entryexit) - return 0; - - /* Fake a debug trap */ - if (is_singlestep) - send_sigtrap(current, regs, 0); - - if (!test_thread_flag(TIF_SYSCALL_TRACE) && !is_sysemu) - goto out; - - /* the 0x80 provides a way for the tracing parent to distinguish - between a syscall stop and SIGTRAP delivery */ - /* Note that the debugger could change the result of test_thread_flag!*/ - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80:0)); - - /* - * this isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (current->exit_code) { - send_sig(current->exit_code, current, 1); - current->exit_code = 0; - } - ret = is_sysemu; -out: - if (unlikely(current->audit_context) && !entryexit) - audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_ax, - regs->bx, regs->cx, regs->dx, regs->si); - if (ret == 0) - return 0; - - regs->orig_ax = -1; /* force skip of syscall restarting */ - if (unlikely(current->audit_context)) - audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax); - return 1; -} - -#else /* CONFIG_X86_64 */ - static void syscall_trace(struct pt_regs *regs) { + if (!(current->ptrace & PT_PTRACED)) + return; #if 0 printk("trace %s ip %lx sp %lx ax %d origrax %d caller %lx tiflags %x ptrace %x\n", @@ -1481,39 +1400,71 @@ static void syscall_trace(struct pt_regs *regs) } } -asmlinkage void syscall_trace_enter(struct pt_regs *regs) +#ifdef CONFIG_X86_32 +# define IS_IA32 1 +#elif defined CONFIG_IA32_EMULATION +# define IS_IA32 test_thread_flag(TIF_IA32) +#else +# define IS_IA32 0 +#endif + +/* + * We must return the syscall number to actually look up in the table. + * This can be -1L to skip running any syscall at all. + */ +asmregparm long syscall_trace_enter(struct pt_regs *regs) { + long ret = 0; + /* do the secure computing check first */ secure_computing(regs->orig_ax); - if (test_thread_flag(TIF_SYSCALL_TRACE) - && (current->ptrace & PT_PTRACED)) + if (unlikely(test_thread_flag(TIF_SYSCALL_EMU))) + ret = -1L; + + if (ret || test_thread_flag(TIF_SYSCALL_TRACE)) syscall_trace(regs); if (unlikely(current->audit_context)) { - if (test_thread_flag(TIF_IA32)) { + if (IS_IA32) audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_ax, regs->bx, regs->cx, regs->dx, regs->si); - } else { +#ifdef CONFIG_X86_64 + else audit_syscall_entry(AUDIT_ARCH_X86_64, regs->orig_ax, regs->di, regs->si, regs->dx, regs->r10); - } +#endif } + + return ret ?: regs->orig_ax; } -asmlinkage void syscall_trace_leave(struct pt_regs *regs) +asmregparm void syscall_trace_leave(struct pt_regs *regs) { if (unlikely(current->audit_context)) audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax); - if ((test_thread_flag(TIF_SYSCALL_TRACE) - || test_thread_flag(TIF_SINGLESTEP)) - && (current->ptrace & PT_PTRACED)) + if (test_thread_flag(TIF_SYSCALL_TRACE)) syscall_trace(regs); -} -#endif /* CONFIG_X86_32 */ + /* + * If TIF_SYSCALL_EMU is set, we only get here because of + * TIF_SINGLESTEP (i.e. this is PTRACE_SYSEMU_SINGLESTEP). + * We already reported this syscall instruction in + * syscall_trace_enter(), so don't do any more now. + */ + if (unlikely(test_thread_flag(TIF_SYSCALL_EMU))) + return; + + /* + * If we are single-stepping, synthesize a trap to follow the + * system call instruction. + */ + if (test_thread_flag(TIF_SINGLESTEP) && + (current->ptrace & PT_PTRACED)) + send_sigtrap(current, regs, 0); +} diff --git a/include/asm-x86/calling.h b/include/asm-x86/calling.h index f13e62e2cb3e..2bc162e0ec6e 100644 --- a/include/asm-x86/calling.h +++ b/include/asm-x86/calling.h @@ -104,7 +104,7 @@ .endif .endm - .macro LOAD_ARGS offset + .macro LOAD_ARGS offset, skiprax=0 movq \offset(%rsp), %r11 movq \offset+8(%rsp), %r10 movq \offset+16(%rsp), %r9 @@ -113,7 +113,10 @@ movq \offset+48(%rsp), %rdx movq \offset+56(%rsp), %rsi movq \offset+64(%rsp), %rdi + .if \skiprax + .else movq \offset+72(%rsp), %rax + .endif .endm #define REST_SKIP 6*8 @@ -165,4 +168,3 @@ .macro icebp .byte 0xf1 .endm - diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h index f224eb3c3157..72e7b9db29bb 100644 --- a/include/asm-x86/ptrace-abi.h +++ b/include/asm-x86/ptrace-abi.h @@ -73,11 +73,11 @@ #ifdef __x86_64__ # define PTRACE_ARCH_PRCTL 30 -#else -# define PTRACE_SYSEMU 31 -# define PTRACE_SYSEMU_SINGLESTEP 32 #endif +#define PTRACE_SYSEMU 31 +#define PTRACE_SYSEMU_SINGLESTEP 32 + #define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */ #ifndef __ASSEMBLY__ diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h index fb8d3cdf143e..b2702a1eeac1 100644 --- a/include/asm-x86/thread_info.h +++ b/include/asm-x86/thread_info.h @@ -75,9 +75,7 @@ struct thread_info { #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ #define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/ #define TIF_IRET 5 /* force IRET */ -#ifdef CONFIG_X86_32 #define TIF_SYSCALL_EMU 6 /* syscall emulation active */ -#endif #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ #define TIF_SECCOMP 8 /* secure computing */ #define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */ @@ -100,11 +98,7 @@ struct thread_info { #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_IRET (1 << TIF_IRET) -#ifdef CONFIG_X86_32 #define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU) -#else -#define _TIF_SYSCALL_EMU 0 -#endif #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) #define _TIF_MCE_NOTIFY (1 << TIF_MCE_NOTIFY) @@ -121,11 +115,20 @@ struct thread_info { #define _TIF_DS_AREA_MSR (1 << TIF_DS_AREA_MSR) #define _TIF_BTS_TRACE_TS (1 << TIF_BTS_TRACE_TS) +/* work to do in syscall_trace_enter() */ +#define _TIF_WORK_SYSCALL_ENTRY \ + (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | \ + _TIF_SYSCALL_AUDIT | _TIF_SECCOMP) + +/* work to do in syscall_trace_leave() */ +#define _TIF_WORK_SYSCALL_EXIT \ + (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP) + /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK \ (0x0000FFFF & \ ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT| \ - _TIF_SECCOMP|_TIF_SYSCALL_EMU)) + _TIF_SINGLESTEP|_TIF_SECCOMP|_TIF_SYSCALL_EMU)) /* work to do on any return to user space */ #define _TIF_ALLWORK_MASK (0x0000FFFF & ~_TIF_SECCOMP) -- cgit v1.2.3 From 380fdd7585a4c2f41b48925eba85c0654b7b858b Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 9 Jul 2008 02:39:29 -0700 Subject: x86 ptrace: user-sets-TF nits This closes some arcane holes in single-step handling that can arise only when user programs set TF directly (via popf or sigreturn) and then use vDSO (syscall/sysenter) system call entry. In those entry paths, the clear_TF_reenable case hits and we must check TIF_SINGLESTEP to be sure our bookkeeping stays correct wrt the user's view of TF. Signed-off-by: Roland McGrath --- arch/x86/kernel/ptrace.c | 10 ++++++++++ arch/x86/kernel/step.c | 13 +++++++++++++ include/asm-x86/thread_info.h | 2 +- 3 files changed, 24 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 34e77b16a42a..e37dccce85db 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -1416,6 +1416,16 @@ asmregparm long syscall_trace_enter(struct pt_regs *regs) { long ret = 0; + /* + * If we stepped into a sysenter/syscall insn, it trapped in + * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP. + * If user-mode had set TF itself, then it's still clear from + * do_debug() and we need to set it again to restore the user + * state. If we entered on the slow path, TF was already set. + */ + if (test_thread_flag(TIF_SINGLESTEP)) + regs->flags |= X86_EFLAGS_TF; + /* do the secure computing check first */ secure_computing(regs->orig_ax); diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c index 0d2cb363ea75..e8b9863ef8c4 100644 --- a/arch/x86/kernel/step.c +++ b/arch/x86/kernel/step.c @@ -107,6 +107,19 @@ static int enable_single_step(struct task_struct *child) struct pt_regs *regs = task_pt_regs(child); unsigned long oflags; + /* + * If we stepped into a sysenter/syscall insn, it trapped in + * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP. + * If user-mode had set TF itself, then it's still clear from + * do_debug() and we need to set it again to restore the user + * state so we don't wrongly set TIF_FORCED_TF below. + * If enable_single_step() was used last and that is what + * set TIF_SINGLESTEP, then both TF and TIF_FORCED_TF are + * already set and our bookkeeping is fine. + */ + if (unlikely(test_tsk_thread_flag(child, TIF_SINGLESTEP))) + regs->flags |= X86_EFLAGS_TF; + /* * Always set TIF_SINGLESTEP - this guarantees that * we single-step system calls etc.. This will also diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h index b2702a1eeac1..0a8f27d31d0d 100644 --- a/include/asm-x86/thread_info.h +++ b/include/asm-x86/thread_info.h @@ -118,7 +118,7 @@ struct thread_info { /* work to do in syscall_trace_enter() */ #define _TIF_WORK_SYSCALL_ENTRY \ (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | \ - _TIF_SYSCALL_AUDIT | _TIF_SECCOMP) + _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | _TIF_SINGLESTEP) /* work to do in syscall_trace_leave() */ #define _TIF_WORK_SYSCALL_EXIT \ -- cgit v1.2.3 From d49747bdfb2ddebea24d1580da55b79d093d48a9 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Tue, 9 Oct 2007 12:37:13 -0500 Subject: powerpc/mpc83xx: Power Management support Basic PM support for 83xx. Standby is implemented as sleep. Suspend-to-RAM is implemented as "deep sleep" (with the processor turned off) on 831x. Signed-off-by: Scott Wood Signed-off-by: Kumar Gala --- arch/powerpc/Kconfig | 2 +- arch/powerpc/platforms/83xx/Makefile | 1 + arch/powerpc/platforms/83xx/suspend-asm.S | 533 ++++++++++++++++++++++++++++++ arch/powerpc/platforms/83xx/suspend.c | 388 ++++++++++++++++++++++ arch/powerpc/sysdev/fsl_soc.h | 1 + arch/powerpc/sysdev/ipic.c | 71 ++++ include/asm-powerpc/reg.h | 4 + include/linux/fsl_devices.h | 6 + 8 files changed, 1005 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/platforms/83xx/suspend-asm.S create mode 100644 arch/powerpc/platforms/83xx/suspend.c (limited to 'include') diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index de88972c5896..50be303e525d 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -199,7 +199,7 @@ config ARCH_HIBERNATION_POSSIBLE config ARCH_SUSPEND_POSSIBLE def_bool y - depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 + depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx config PPC_DCR_NATIVE bool diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile index f331fd7dd836..32c7ad13911c 100644 --- a/arch/powerpc/platforms/83xx/Makefile +++ b/arch/powerpc/platforms/83xx/Makefile @@ -3,6 +3,7 @@ # obj-y := misc.o usb.o obj-$(CONFIG_PCI) += pci.o +obj-$(CONFIG_SUSPEND) += suspend.o suspend-asm.o obj-$(CONFIG_MPC831x_RDB) += mpc831x_rdb.o obj-$(CONFIG_MPC832x_RDB) += mpc832x_rdb.o obj-$(CONFIG_MPC834x_MDS) += mpc834x_mds.o diff --git a/arch/powerpc/platforms/83xx/suspend-asm.S b/arch/powerpc/platforms/83xx/suspend-asm.S new file mode 100644 index 000000000000..1930543c98d3 --- /dev/null +++ b/arch/powerpc/platforms/83xx/suspend-asm.S @@ -0,0 +1,533 @@ +/* + * Enter and leave deep sleep state on MPC83xx + * + * Copyright (c) 2006-2008 Freescale Semiconductor, Inc. + * Author: Scott Wood + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include +#include +#include +#include + +#define SS_MEMSAVE 0x00 /* First 8 bytes of RAM */ +#define SS_HID 0x08 /* 3 HIDs */ +#define SS_IABR 0x14 /* 2 IABRs */ +#define SS_IBCR 0x1c +#define SS_DABR 0x20 /* 2 DABRs */ +#define SS_DBCR 0x28 +#define SS_SP 0x2c +#define SS_SR 0x30 /* 16 segment registers */ +#define SS_R2 0x70 +#define SS_MSR 0x74 +#define SS_SDR1 0x78 +#define SS_LR 0x7c +#define SS_SPRG 0x80 /* 4 SPRGs */ +#define SS_DBAT 0x90 /* 8 DBATs */ +#define SS_IBAT 0xd0 /* 8 IBATs */ +#define SS_TB 0x110 +#define SS_CR 0x118 +#define SS_GPREG 0x11c /* r12-r31 */ +#define STATE_SAVE_SIZE 0x16c + + .section .data + .align 5 + +mpc83xx_sleep_save_area: + .space STATE_SAVE_SIZE +immrbase: + .long 0 + + .section .text + .align 5 + + /* r3 = physical address of IMMR */ +_GLOBAL(mpc83xx_enter_deep_sleep) + lis r4, immrbase@ha + stw r3, immrbase@l(r4) + + /* The first 2 words of memory are used to communicate with the + * bootloader, to tell it how to resume. + * + * The first word is the magic number 0xf5153ae5, and the second + * is the pointer to mpc83xx_deep_resume. + * + * The original content of these two words is saved in SS_MEMSAVE. + */ + + lis r3, mpc83xx_sleep_save_area@h + ori r3, r3, mpc83xx_sleep_save_area@l + + lis r4, KERNELBASE@h + lwz r5, 0(r4) + lwz r6, 4(r4) + + stw r5, SS_MEMSAVE+0(r3) + stw r6, SS_MEMSAVE+4(r3) + + mfspr r5, SPRN_HID0 + mfspr r6, SPRN_HID1 + mfspr r7, SPRN_HID2 + + stw r5, SS_HID+0(r3) + stw r6, SS_HID+4(r3) + stw r7, SS_HID+8(r3) + + mfspr r4, SPRN_IABR + mfspr r5, SPRN_IABR2 + mfspr r6, SPRN_IBCR + mfspr r7, SPRN_DABR + mfspr r8, SPRN_DABR2 + mfspr r9, SPRN_DBCR + + stw r4, SS_IABR+0(r3) + stw r5, SS_IABR+4(r3) + stw r6, SS_IBCR(r3) + stw r7, SS_DABR+0(r3) + stw r8, SS_DABR+4(r3) + stw r9, SS_DBCR(r3) + + mfspr r4, SPRN_SPRG0 + mfspr r5, SPRN_SPRG1 + mfspr r6, SPRN_SPRG2 + mfspr r7, SPRN_SPRG3 + mfsdr1 r8 + + stw r4, SS_SPRG+0(r3) + stw r5, SS_SPRG+4(r3) + stw r6, SS_SPRG+8(r3) + stw r7, SS_SPRG+12(r3) + stw r8, SS_SDR1(r3) + + mfspr r4, SPRN_DBAT0U + mfspr r5, SPRN_DBAT0L + mfspr r6, SPRN_DBAT1U + mfspr r7, SPRN_DBAT1L + + stw r4, SS_DBAT+0x00(r3) + stw r5, SS_DBAT+0x04(r3) + stw r6, SS_DBAT+0x08(r3) + stw r7, SS_DBAT+0x0c(r3) + + mfspr r4, SPRN_DBAT2U + mfspr r5, SPRN_DBAT2L + mfspr r6, SPRN_DBAT3U + mfspr r7, SPRN_DBAT3L + + stw r4, SS_DBAT+0x10(r3) + stw r5, SS_DBAT+0x14(r3) + stw r6, SS_DBAT+0x18(r3) + stw r7, SS_DBAT+0x1c(r3) + + mfspr r4, SPRN_DBAT4U + mfspr r5, SPRN_DBAT4L + mfspr r6, SPRN_DBAT5U + mfspr r7, SPRN_DBAT5L + + stw r4, SS_DBAT+0x20(r3) + stw r5, SS_DBAT+0x24(r3) + stw r6, SS_DBAT+0x28(r3) + stw r7, SS_DBAT+0x2c(r3) + + mfspr r4, SPRN_DBAT6U + mfspr r5, SPRN_DBAT6L + mfspr r6, SPRN_DBAT7U + mfspr r7, SPRN_DBAT7L + + stw r4, SS_DBAT+0x30(r3) + stw r5, SS_DBAT+0x34(r3) + stw r6, SS_DBAT+0x38(r3) + stw r7, SS_DBAT+0x3c(r3) + + mfspr r4, SPRN_IBAT0U + mfspr r5, SPRN_IBAT0L + mfspr r6, SPRN_IBAT1U + mfspr r7, SPRN_IBAT1L + + stw r4, SS_IBAT+0x00(r3) + stw r5, SS_IBAT+0x04(r3) + stw r6, SS_IBAT+0x08(r3) + stw r7, SS_IBAT+0x0c(r3) + + mfspr r4, SPRN_IBAT2U + mfspr r5, SPRN_IBAT2L + mfspr r6, SPRN_IBAT3U + mfspr r7, SPRN_IBAT3L + + stw r4, SS_IBAT+0x10(r3) + stw r5, SS_IBAT+0x14(r3) + stw r6, SS_IBAT+0x18(r3) + stw r7, SS_IBAT+0x1c(r3) + + mfspr r4, SPRN_IBAT4U + mfspr r5, SPRN_IBAT4L + mfspr r6, SPRN_IBAT5U + mfspr r7, SPRN_IBAT5L + + stw r4, SS_IBAT+0x20(r3) + stw r5, SS_IBAT+0x24(r3) + stw r6, SS_IBAT+0x28(r3) + stw r7, SS_IBAT+0x2c(r3) + + mfspr r4, SPRN_IBAT6U + mfspr r5, SPRN_IBAT6L + mfspr r6, SPRN_IBAT7U + mfspr r7, SPRN_IBAT7L + + stw r4, SS_IBAT+0x30(r3) + stw r5, SS_IBAT+0x34(r3) + stw r6, SS_IBAT+0x38(r3) + stw r7, SS_IBAT+0x3c(r3) + + mfmsr r4 + mflr r5 + mfcr r6 + + stw r4, SS_MSR(r3) + stw r5, SS_LR(r3) + stw r6, SS_CR(r3) + stw r1, SS_SP(r3) + stw r2, SS_R2(r3) + +1: mftbu r4 + mftb r5 + mftbu r6 + cmpw r4, r6 + bne 1b + + stw r4, SS_TB+0(r3) + stw r5, SS_TB+4(r3) + + stmw r12, SS_GPREG(r3) + + li r4, 0 + addi r6, r3, SS_SR-4 +1: mfsrin r5, r4 + stwu r5, 4(r6) + addis r4, r4, 0x1000 + cmpwi r4, 0 + bne 1b + + /* Disable machine checks and critical exceptions */ + mfmsr r4 + rlwinm r4, r4, 0, ~MSR_CE + rlwinm r4, r4, 0, ~MSR_ME + mtmsr r4 + isync + +#define TMP_VIRT_IMMR 0xf0000000 +#define DEFAULT_IMMR_VALUE 0xff400000 +#define IMMRBAR_BASE 0x0000 + + lis r4, immrbase@ha + lwz r4, immrbase@l(r4) + + /* Use DBAT0 to address the current IMMR space */ + + ori r4, r4, 0x002a + mtspr SPRN_DBAT0L, r4 + lis r8, TMP_VIRT_IMMR@h + ori r4, r8, 0x001e /* 1 MByte accessable from Kernel Space only */ + mtspr SPRN_DBAT0U, r4 + isync + + /* Use DBAT1 to address the original IMMR space */ + + lis r4, DEFAULT_IMMR_VALUE@h + ori r4, r4, 0x002a + mtspr SPRN_DBAT1L, r4 + lis r9, (TMP_VIRT_IMMR + 0x01000000)@h + ori r4, r9, 0x001e /* 1 MByte accessable from Kernel Space only */ + mtspr SPRN_DBAT1U, r4 + isync + + /* Use DBAT2 to address the beginning of RAM. This isn't done + * using the normal virtual mapping, because with page debugging + * enabled it will be read-only. + */ + + li r4, 0x0002 + mtspr SPRN_DBAT2L, r4 + lis r4, KERNELBASE@h + ori r4, r4, 0x001e /* 1 MByte accessable from Kernel Space only */ + mtspr SPRN_DBAT2U, r4 + isync + + /* Flush the cache with our BAT, as there will be TLB misses + * otherwise if page debugging is enabled, and these misses + * will disturb the PLRU algorithm. + */ + + bl __flush_disable_L1 + + /* Keep the i-cache enabled, so the hack below for low-boot + * flash will work. + */ + mfspr r3, SPRN_HID0 + ori r3, r3, HID0_ICE + mtspr SPRN_HID0, r3 + isync + + lis r6, 0xf515 + ori r6, r6, 0x3ae5 + + lis r7, mpc83xx_deep_resume@h + ori r7, r7, mpc83xx_deep_resume@l + tophys(r7, r7) + + lis r5, KERNELBASE@h + stw r6, 0(r5) + stw r7, 4(r5) + + /* Reset BARs */ + + li r4, 0 + stw r4, 0x0024(r8) + stw r4, 0x002c(r8) + stw r4, 0x0034(r8) + stw r4, 0x003c(r8) + stw r4, 0x0064(r8) + stw r4, 0x006c(r8) + + /* Rev 1 of the 8313 has problems with wakeup events that are + * pending during the transition to deep sleep state (such as if + * the PCI host sets the state to D3 and then D0 in rapid + * succession). This check shrinks the race window somewhat. + * + * See erratum PCI23, though the problem is not limited + * to PCI. + */ + + lwz r3, 0x0b04(r8) + andi. r3, r3, 1 + bne- mpc83xx_deep_resume + + /* Move IMMR back to the default location, following the + * procedure specified in the MPC8313 manual. + */ + lwz r4, IMMRBAR_BASE(r8) + isync + lis r4, DEFAULT_IMMR_VALUE@h + stw r4, IMMRBAR_BASE(r8) + lis r4, KERNELBASE@h + lwz r4, 0(r4) + isync + lwz r4, IMMRBAR_BASE(r9) + mr r8, r9 + isync + + /* Check the Reset Configuration Word to see whether flash needs + * to be mapped at a low address or a high address. + */ + + lwz r4, 0x0904(r8) + andis. r4, r4, 0x0400 + li r4, 0 + beq boot_low + lis r4, 0xff80 +boot_low: + stw r4, 0x0020(r8) + lis r7, 0x8000 + ori r7, r7, 0x0016 + + mfspr r5, SPRN_HID0 + rlwinm r5, r5, 0, ~(HID0_DOZE | HID0_NAP) + oris r5, r5, HID0_SLEEP@h + mtspr SPRN_HID0, r5 + isync + + mfmsr r5 + oris r5, r5, MSR_POW@h + + /* Enable the flash mapping at the appropriate address. This + * mapping will override the RAM mapping if booting low, so there's + * no need to disable the latter. This must be done inside the same + * cache line as setting MSR_POW, so that no instruction fetches + * from RAM happen after the flash mapping is turned on. + */ + + .align 5 + stw r7, 0x0024(r8) + sync + isync + mtmsr r5 + isync +1: b 1b + +mpc83xx_deep_resume: + lis r4, 1f@h + ori r4, r4, 1f@l + tophys(r4, r4) + mtsrr0 r4 + + mfmsr r4 + rlwinm r4, r4, 0, ~(MSR_IR | MSR_DR) + mtsrr1 r4 + + rfi + +1: tlbia + bl __inval_enable_L1 + + lis r3, mpc83xx_sleep_save_area@h + ori r3, r3, mpc83xx_sleep_save_area@l + tophys(r3, r3) + + lwz r5, SS_MEMSAVE+0(r3) + lwz r6, SS_MEMSAVE+4(r3) + + stw r5, 0(0) + stw r6, 4(0) + + lwz r5, SS_HID+0(r3) + lwz r6, SS_HID+4(r3) + lwz r7, SS_HID+8(r3) + + mtspr SPRN_HID0, r5 + mtspr SPRN_HID1, r6 + mtspr SPRN_HID2, r7 + + lwz r4, SS_IABR+0(r3) + lwz r5, SS_IABR+4(r3) + lwz r6, SS_IBCR(r3) + lwz r7, SS_DABR+0(r3) + lwz r8, SS_DABR+4(r3) + lwz r9, SS_DBCR(r3) + + mtspr SPRN_IABR, r4 + mtspr SPRN_IABR2, r5 + mtspr SPRN_IBCR, r6 + mtspr SPRN_DABR, r7 + mtspr SPRN_DABR2, r8 + mtspr SPRN_DBCR, r9 + + li r4, 0 + addi r6, r3, SS_SR-4 +1: lwzu r5, 4(r6) + mtsrin r5, r4 + addis r4, r4, 0x1000 + cmpwi r4, 0 + bne 1b + + lwz r4, SS_DBAT+0x00(r3) + lwz r5, SS_DBAT+0x04(r3) + lwz r6, SS_DBAT+0x08(r3) + lwz r7, SS_DBAT+0x0c(r3) + + mtspr SPRN_DBAT0U, r4 + mtspr SPRN_DBAT0L, r5 + mtspr SPRN_DBAT1U, r6 + mtspr SPRN_DBAT1L, r7 + + lwz r4, SS_DBAT+0x10(r3) + lwz r5, SS_DBAT+0x14(r3) + lwz r6, SS_DBAT+0x18(r3) + lwz r7, SS_DBAT+0x1c(r3) + + mtspr SPRN_DBAT2U, r4 + mtspr SPRN_DBAT2L, r5 + mtspr SPRN_DBAT3U, r6 + mtspr SPRN_DBAT3L, r7 + + lwz r4, SS_DBAT+0x20(r3) + lwz r5, SS_DBAT+0x24(r3) + lwz r6, SS_DBAT+0x28(r3) + lwz r7, SS_DBAT+0x2c(r3) + + mtspr SPRN_DBAT4U, r4 + mtspr SPRN_DBAT4L, r5 + mtspr SPRN_DBAT5U, r6 + mtspr SPRN_DBAT5L, r7 + + lwz r4, SS_DBAT+0x30(r3) + lwz r5, SS_DBAT+0x34(r3) + lwz r6, SS_DBAT+0x38(r3) + lwz r7, SS_DBAT+0x3c(r3) + + mtspr SPRN_DBAT6U, r4 + mtspr SPRN_DBAT6L, r5 + mtspr SPRN_DBAT7U, r6 + mtspr SPRN_DBAT7L, r7 + + lwz r4, SS_IBAT+0x00(r3) + lwz r5, SS_IBAT+0x04(r3) + lwz r6, SS_IBAT+0x08(r3) + lwz r7, SS_IBAT+0x0c(r3) + + mtspr SPRN_IBAT0U, r4 + mtspr SPRN_IBAT0L, r5 + mtspr SPRN_IBAT1U, r6 + mtspr SPRN_IBAT1L, r7 + + lwz r4, SS_IBAT+0x10(r3) + lwz r5, SS_IBAT+0x14(r3) + lwz r6, SS_IBAT+0x18(r3) + lwz r7, SS_IBAT+0x1c(r3) + + mtspr SPRN_IBAT2U, r4 + mtspr SPRN_IBAT2L, r5 + mtspr SPRN_IBAT3U, r6 + mtspr SPRN_IBAT3L, r7 + + lwz r4, SS_IBAT+0x20(r3) + lwz r5, SS_IBAT+0x24(r3) + lwz r6, SS_IBAT+0x28(r3) + lwz r7, SS_IBAT+0x2c(r3) + + mtspr SPRN_IBAT4U, r4 + mtspr SPRN_IBAT4L, r5 + mtspr SPRN_IBAT5U, r6 + mtspr SPRN_IBAT5L, r7 + + lwz r4, SS_IBAT+0x30(r3) + lwz r5, SS_IBAT+0x34(r3) + lwz r6, SS_IBAT+0x38(r3) + lwz r7, SS_IBAT+0x3c(r3) + + mtspr SPRN_IBAT6U, r4 + mtspr SPRN_IBAT6L, r5 + mtspr SPRN_IBAT7U, r6 + mtspr SPRN_IBAT7L, r7 + + lwz r4, SS_SPRG+0(r3) + lwz r5, SS_SPRG+4(r3) + lwz r6, SS_SPRG+8(r3) + lwz r7, SS_SPRG+12(r3) + lwz r8, SS_SDR1(r3) + + mtspr SPRN_SPRG0, r4 + mtspr SPRN_SPRG1, r5 + mtspr SPRN_SPRG2, r6 + mtspr SPRN_SPRG3, r7 + mtsdr1 r8 + + lwz r4, SS_MSR(r3) + lwz r5, SS_LR(r3) + lwz r6, SS_CR(r3) + lwz r1, SS_SP(r3) + lwz r2, SS_R2(r3) + + mtsrr1 r4 + mtsrr0 r5 + mtcr r6 + + li r4, 0 + mtspr SPRN_TBWL, r4 + + lwz r4, SS_TB+0(r3) + lwz r5, SS_TB+4(r3) + + mtspr SPRN_TBWU, r4 + mtspr SPRN_TBWL, r5 + + lmw r12, SS_GPREG(r3) + + /* Kick decrementer */ + li r0, 1 + mtdec r0 + + rfi diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c new file mode 100644 index 000000000000..08e65fc8b98c --- /dev/null +++ b/arch/powerpc/platforms/83xx/suspend.c @@ -0,0 +1,388 @@ +/* + * MPC83xx suspend support + * + * Author: Scott Wood + * + * Copyright (c) 2006-2007 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include + +#define PMCCR1_NEXT_STATE 0x0C /* Next state for power management */ +#define PMCCR1_NEXT_STATE_SHIFT 2 +#define PMCCR1_CURR_STATE 0x03 /* Current state for power management*/ +#define IMMR_RCW_OFFSET 0x900 +#define RCW_PCI_HOST 0x80000000 + +void mpc83xx_enter_deep_sleep(phys_addr_t immrbase); + +struct mpc83xx_pmc { + u32 config; +#define PMCCR_DLPEN 2 /* DDR SDRAM low power enable */ +#define PMCCR_SLPEN 1 /* System low power enable */ + + u32 event; + u32 mask; +/* All but PMCI are deep-sleep only */ +#define PMCER_GPIO 0x100 +#define PMCER_PCI 0x080 +#define PMCER_USB 0x040 +#define PMCER_ETSEC1 0x020 +#define PMCER_ETSEC2 0x010 +#define PMCER_TIMER 0x008 +#define PMCER_INT1 0x004 +#define PMCER_INT2 0x002 +#define PMCER_PMCI 0x001 +#define PMCER_ALL 0x1FF + + /* deep-sleep only */ + u32 config1; +#define PMCCR1_USE_STATE 0x80000000 +#define PMCCR1_PME_EN 0x00000080 +#define PMCCR1_ASSERT_PME 0x00000040 +#define PMCCR1_POWER_OFF 0x00000020 + + /* deep-sleep only */ + u32 config2; +}; + +struct mpc83xx_rcw { + u32 rcwlr; + u32 rcwhr; +}; + +struct mpc83xx_clock { + u32 spmr; + u32 occr; + u32 sccr; +}; + +struct pmc_type { + int has_deep_sleep; +}; + +static struct of_device *pmc_dev; +static int has_deep_sleep, deep_sleeping; +static int pmc_irq; +static struct mpc83xx_pmc __iomem *pmc_regs; +static struct mpc83xx_clock __iomem *clock_regs; +static int is_pci_agent, wake_from_pci; +static phys_addr_t immrbase; +static int pci_pm_state; +static DECLARE_WAIT_QUEUE_HEAD(agent_wq); + +int fsl_deep_sleep(void) +{ + return deep_sleeping; +} + +static int mpc83xx_change_state(void) +{ + u32 curr_state; + u32 reg_cfg1 = in_be32(&pmc_regs->config1); + + if (is_pci_agent) { + pci_pm_state = (reg_cfg1 & PMCCR1_NEXT_STATE) >> + PMCCR1_NEXT_STATE_SHIFT; + curr_state = reg_cfg1 & PMCCR1_CURR_STATE; + + if (curr_state != pci_pm_state) { + reg_cfg1 &= ~PMCCR1_CURR_STATE; + reg_cfg1 |= pci_pm_state; + out_be32(&pmc_regs->config1, reg_cfg1); + + wake_up(&agent_wq); + return 1; + } + } + + return 0; +} + +static irqreturn_t pmc_irq_handler(int irq, void *dev_id) +{ + u32 event = in_be32(&pmc_regs->event); + int ret = IRQ_NONE; + + if (mpc83xx_change_state()) + ret = IRQ_HANDLED; + + if (event) { + out_be32(&pmc_regs->event, event); + ret = IRQ_HANDLED; + } + + return ret; +} + +static int mpc83xx_suspend_enter(suspend_state_t state) +{ + int ret = -EAGAIN; + + /* Don't go to sleep if there's a race where pci_pm_state changes + * between the agent thread checking it and the PM code disabling + * interrupts. + */ + if (wake_from_pci) { + if (pci_pm_state != (deep_sleeping ? 3 : 2)) + goto out; + + out_be32(&pmc_regs->config1, + in_be32(&pmc_regs->config1) | PMCCR1_PME_EN); + } + + /* Put the system into low-power mode and the RAM + * into self-refresh mode once the core goes to + * sleep. + */ + + out_be32(&pmc_regs->config, PMCCR_SLPEN | PMCCR_DLPEN); + + /* If it has deep sleep (i.e. it's an 831x or compatible), + * disable power to the core upon entering sleep mode. This will + * require going through the boot firmware upon a wakeup event. + */ + + if (deep_sleeping) { + out_be32(&pmc_regs->mask, PMCER_ALL); + + out_be32(&pmc_regs->config1, + in_be32(&pmc_regs->config1) | PMCCR1_POWER_OFF); + + enable_kernel_fp(); + + mpc83xx_enter_deep_sleep(immrbase); + + out_be32(&pmc_regs->config1, + in_be32(&pmc_regs->config1) & ~PMCCR1_POWER_OFF); + + out_be32(&pmc_regs->mask, PMCER_PMCI); + } else { + out_be32(&pmc_regs->mask, PMCER_PMCI); + + mpc6xx_enter_standby(); + } + + ret = 0; + +out: + out_be32(&pmc_regs->config1, + in_be32(&pmc_regs->config1) & ~PMCCR1_PME_EN); + + return ret; +} + +static void mpc83xx_suspend_finish(void) +{ + deep_sleeping = 0; +} + +static int mpc83xx_suspend_valid(suspend_state_t state) +{ + return state == PM_SUSPEND_STANDBY || state == PM_SUSPEND_MEM; +} + +static int mpc83xx_suspend_begin(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_STANDBY: + deep_sleeping = 0; + return 0; + + case PM_SUSPEND_MEM: + if (has_deep_sleep) + deep_sleeping = 1; + + return 0; + + default: + return -EINVAL; + } +} + +static int agent_thread_fn(void *data) +{ + while (1) { + wait_event_interruptible(agent_wq, pci_pm_state >= 2); + try_to_freeze(); + + if (signal_pending(current) || pci_pm_state < 2) + continue; + + /* With a preemptible kernel (or SMP), this could race with + * a userspace-driven suspend request. It's probably best + * to avoid mixing the two with such a configuration (or + * else fix it by adding a mutex to state_store that we can + * synchronize with). + */ + + wake_from_pci = 1; + + pm_suspend(pci_pm_state == 3 ? PM_SUSPEND_MEM : + PM_SUSPEND_STANDBY); + + wake_from_pci = 0; + } + + return 0; +} + +static void mpc83xx_set_agent(void) +{ + out_be32(&pmc_regs->config1, PMCCR1_USE_STATE); + out_be32(&pmc_regs->mask, PMCER_PMCI); + + kthread_run(agent_thread_fn, NULL, "PCI power mgt"); +} + +static int mpc83xx_is_pci_agent(void) +{ + struct mpc83xx_rcw __iomem *rcw_regs; + int ret; + + rcw_regs = ioremap(get_immrbase() + IMMR_RCW_OFFSET, + sizeof(struct mpc83xx_rcw)); + + if (!rcw_regs) + return -ENOMEM; + + ret = !(in_be32(&rcw_regs->rcwhr) & RCW_PCI_HOST); + + iounmap(rcw_regs); + return ret; +} + +static struct platform_suspend_ops mpc83xx_suspend_ops = { + .valid = mpc83xx_suspend_valid, + .begin = mpc83xx_suspend_begin, + .enter = mpc83xx_suspend_enter, + .finish = mpc83xx_suspend_finish, +}; + +static int pmc_probe(struct of_device *ofdev, + const struct of_device_id *match) +{ + struct device_node *np = ofdev->node; + struct resource res; + struct pmc_type *type = match->data; + int ret = 0; + + if (!of_device_is_available(np)) + return -ENODEV; + + has_deep_sleep = type->has_deep_sleep; + immrbase = get_immrbase(); + pmc_dev = ofdev; + + is_pci_agent = mpc83xx_is_pci_agent(); + if (is_pci_agent < 0) + return is_pci_agent; + + ret = of_address_to_resource(np, 0, &res); + if (ret) + return -ENODEV; + + pmc_irq = irq_of_parse_and_map(np, 0); + if (pmc_irq != NO_IRQ) { + ret = request_irq(pmc_irq, pmc_irq_handler, IRQF_SHARED, + "pmc", ofdev); + + if (ret) + return -EBUSY; + } + + pmc_regs = ioremap(res.start, sizeof(struct mpc83xx_pmc)); + + if (!pmc_regs) { + ret = -ENOMEM; + goto out; + } + + ret = of_address_to_resource(np, 1, &res); + if (ret) { + ret = -ENODEV; + goto out_pmc; + } + + clock_regs = ioremap(res.start, sizeof(struct mpc83xx_pmc)); + + if (!clock_regs) { + ret = -ENOMEM; + goto out_pmc; + } + + if (is_pci_agent) + mpc83xx_set_agent(); + + suspend_set_ops(&mpc83xx_suspend_ops); + return 0; + +out_pmc: + iounmap(pmc_regs); +out: + if (pmc_irq != NO_IRQ) + free_irq(pmc_irq, ofdev); + + return ret; +} + +static int pmc_remove(struct of_device *ofdev) +{ + return -EPERM; +}; + +static struct pmc_type pmc_types[] = { + { + .has_deep_sleep = 1, + }, + { + .has_deep_sleep = 0, + } +}; + +static struct of_device_id pmc_match[] = { + { + .compatible = "fsl,mpc8313-pmc", + .data = &pmc_types[0], + }, + { + .compatible = "fsl,mpc8349-pmc", + .data = &pmc_types[1], + }, + {} +}; + +static struct of_platform_driver pmc_driver = { + .name = "mpc83xx-pmc", + .match_table = pmc_match, + .probe = pmc_probe, + .remove = pmc_remove +}; + +static int pmc_init(void) +{ + return of_register_platform_driver(&pmc_driver); +} + +module_init(pmc_init); diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h index 52c831fa1886..024299887352 100644 --- a/arch/powerpc/sysdev/fsl_soc.h +++ b/arch/powerpc/sysdev/fsl_soc.h @@ -10,6 +10,7 @@ extern u32 get_baudrate(void); extern u32 fsl_get_sys_freq(void); struct spi_board_info; +struct device_node; extern int fsl_spi_init(struct spi_board_info *board_infos, unsigned int num_board_infos, diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index caba1c0be5a7..88a983ece5c9 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -889,8 +890,78 @@ unsigned int ipic_get_irq(void) return irq_linear_revmap(primary_ipic->irqhost, irq); } +#ifdef CONFIG_PM +static struct { + u32 sicfr; + u32 siprr[2]; + u32 simsr[2]; + u32 sicnr; + u32 smprr[2]; + u32 semsr; + u32 secnr; + u32 sermr; + u32 sercr; +} ipic_saved_state; + +static int ipic_suspend(struct sys_device *sdev, pm_message_t state) +{ + struct ipic *ipic = primary_ipic; + + ipic_saved_state.sicfr = ipic_read(ipic->regs, IPIC_SICFR); + ipic_saved_state.siprr[0] = ipic_read(ipic->regs, IPIC_SIPRR_A); + ipic_saved_state.siprr[1] = ipic_read(ipic->regs, IPIC_SIPRR_D); + ipic_saved_state.simsr[0] = ipic_read(ipic->regs, IPIC_SIMSR_H); + ipic_saved_state.simsr[1] = ipic_read(ipic->regs, IPIC_SIMSR_L); + ipic_saved_state.sicnr = ipic_read(ipic->regs, IPIC_SICNR); + ipic_saved_state.smprr[0] = ipic_read(ipic->regs, IPIC_SMPRR_A); + ipic_saved_state.smprr[1] = ipic_read(ipic->regs, IPIC_SMPRR_B); + ipic_saved_state.semsr = ipic_read(ipic->regs, IPIC_SEMSR); + ipic_saved_state.secnr = ipic_read(ipic->regs, IPIC_SECNR); + ipic_saved_state.sermr = ipic_read(ipic->regs, IPIC_SERMR); + ipic_saved_state.sercr = ipic_read(ipic->regs, IPIC_SERCR); + + if (fsl_deep_sleep()) { + /* In deep sleep, make sure there can be no + * pending interrupts, as this can cause + * problems on 831x. + */ + ipic_write(ipic->regs, IPIC_SIMSR_H, 0); + ipic_write(ipic->regs, IPIC_SIMSR_L, 0); + ipic_write(ipic->regs, IPIC_SEMSR, 0); + ipic_write(ipic->regs, IPIC_SERMR, 0); + } + + return 0; +} + +static int ipic_resume(struct sys_device *sdev) +{ + struct ipic *ipic = primary_ipic; + + ipic_write(ipic->regs, IPIC_SICFR, ipic_saved_state.sicfr); + ipic_write(ipic->regs, IPIC_SIPRR_A, ipic_saved_state.siprr[0]); + ipic_write(ipic->regs, IPIC_SIPRR_D, ipic_saved_state.siprr[1]); + ipic_write(ipic->regs, IPIC_SIMSR_H, ipic_saved_state.simsr[0]); + ipic_write(ipic->regs, IPIC_SIMSR_L, ipic_saved_state.simsr[1]); + ipic_write(ipic->regs, IPIC_SICNR, ipic_saved_state.sicnr); + ipic_write(ipic->regs, IPIC_SMPRR_A, ipic_saved_state.smprr[0]); + ipic_write(ipic->regs, IPIC_SMPRR_B, ipic_saved_state.smprr[1]); + ipic_write(ipic->regs, IPIC_SEMSR, ipic_saved_state.semsr); + ipic_write(ipic->regs, IPIC_SECNR, ipic_saved_state.secnr); + ipic_write(ipic->regs, IPIC_SERMR, ipic_saved_state.sermr); + ipic_write(ipic->regs, IPIC_SERCR, ipic_saved_state.sercr); + + return 0; +} +#else +#define ipic_suspend NULL +#define ipic_resume NULL +#endif + static struct sysdev_class ipic_sysclass = { .name = "ipic", + .suspend = ipic_suspend, + .resume = ipic_resume, }; static struct sys_device device_ipic = { diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h index bbccadfee0d6..c6d1ab650778 100644 --- a/include/asm-powerpc/reg.h +++ b/include/asm-powerpc/reg.h @@ -155,10 +155,12 @@ #define CTRL_RUNLATCH 0x1 #define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */ #define DABR_TRANSLATION (1UL << 2) +#define SPRN_DABR2 0x13D /* e300 */ #define SPRN_DABRX 0x3F7 /* Data Address Breakpoint Register Extension */ #define DABRX_USER (1UL << 0) #define DABRX_KERNEL (1UL << 1) #define SPRN_DAR 0x013 /* Data Address Register */ +#define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ #define DSISR_NOHPTE 0x40000000 /* no translation found */ #define DSISR_PROTFAULT 0x08000000 /* protection fault */ @@ -264,6 +266,8 @@ #define HID1_PS (1<<16) /* 750FX PLL selection */ #define SPRN_HID2 0x3F8 /* Hardware Implementation Register 2 */ #define SPRN_IABR 0x3F2 /* Instruction Address Breakpoint Register */ +#define SPRN_IABR2 0x3FA /* 83xx */ +#define SPRN_IBCR 0x135 /* 83xx Insn Breakpoint Control Reg */ #define SPRN_HID4 0x3F4 /* 970 HID4 */ #define SPRN_HID5 0x3F6 /* 970 HID5 */ #define SPRN_HID6 0x3F9 /* BE HID 6 */ diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index c415a496de3a..0472877d7ea8 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -125,4 +125,10 @@ struct mpc8xx_pcmcia_ops { int(*voltage_set)(int slot, int vcc, int vpp); }; +/* Returns non-zero if the current suspend operation would + * lead to a deep sleep (i.e. power removed from the core, + * instead of just the clock). + */ +int fsl_deep_sleep(void); + #endif /* _FSL_DEVICE_H_ */ -- cgit v1.2.3 From 7e1cc9c55a2a4af62f30fade62fb612a243def39 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Wed, 7 May 2008 13:19:44 -0500 Subject: powerpc: Fix a bunch of sparse warnings in the qe_lib Mostly having to do with not marking things __iomem. And some failure to use appropriate accessors to read MMIO regs. Signed-off-by: Andy Fleming Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/qe_lib/qe.c | 6 +++--- arch/powerpc/sysdev/qe_lib/ucc.c | 6 +++--- arch/powerpc/sysdev/qe_lib/ucc_fast.c | 16 ++++++++-------- include/asm-powerpc/ucc_fast.h | 8 ++++---- 4 files changed, 18 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 9e82d7e725a5..b3b73ae57d6d 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -64,7 +64,7 @@ static phys_addr_t qebase = -1; phys_addr_t get_qe_base(void) { struct device_node *qe; - unsigned int size; + int size; const u32 *prop; if (qebase != -1) @@ -158,7 +158,7 @@ static unsigned int brg_clk = 0; unsigned int qe_get_brg_clk(void) { struct device_node *qe; - unsigned int size; + int size; const u32 *prop; if (brg_clk) @@ -305,7 +305,7 @@ EXPORT_SYMBOL(qe_put_snum); static int qe_sdma_init(void) { - struct sdma *sdma = &qe_immr->sdma; + struct sdma __iomem *sdma = &qe_immr->sdma; unsigned long sdma_buf_offset; if (!sdma) diff --git a/arch/powerpc/sysdev/qe_lib/ucc.c b/arch/powerpc/sysdev/qe_lib/ucc.c index d3c7f5af9bc8..1d78071aad7d 100644 --- a/arch/powerpc/sysdev/qe_lib/ucc.c +++ b/arch/powerpc/sysdev/qe_lib/ucc.c @@ -88,7 +88,7 @@ int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed) return 0; } -static void get_cmxucr_reg(unsigned int ucc_num, __be32 **cmxucr, +static void get_cmxucr_reg(unsigned int ucc_num, __be32 __iomem **cmxucr, unsigned int *reg_num, unsigned int *shift) { unsigned int cmx = ((ucc_num & 1) << 1) + (ucc_num > 3); @@ -100,7 +100,7 @@ static void get_cmxucr_reg(unsigned int ucc_num, __be32 **cmxucr, int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask) { - __be32 *cmxucr; + __be32 __iomem *cmxucr; unsigned int reg_num; unsigned int shift; @@ -121,7 +121,7 @@ int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask) int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock, enum comm_dir mode) { - __be32 *cmxucr; + __be32 __iomem *cmxucr; unsigned int reg_num; unsigned int shift; u32 clock_bits = 0; diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c index bcf88e6ce962..1aecb075a72e 100644 --- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c +++ b/arch/powerpc/sysdev/qe_lib/ucc_fast.c @@ -46,7 +46,7 @@ void ucc_fast_dump_regs(struct ucc_fast_private * uccf) printk(KERN_INFO "uccm : addr=0x%p, val=0x%08x\n", &uccf->uf_regs->uccm, in_be32(&uccf->uf_regs->uccm)); printk(KERN_INFO "uccs : addr=0x%p, val=0x%02x\n", - &uccf->uf_regs->uccs, uccf->uf_regs->uccs); + &uccf->uf_regs->uccs, in_8(&uccf->uf_regs->uccs)); printk(KERN_INFO "urfb : addr=0x%p, val=0x%08x\n", &uccf->uf_regs->urfb, in_be32(&uccf->uf_regs->urfb)); printk(KERN_INFO "urfs : addr=0x%p, val=0x%04x\n", @@ -68,7 +68,7 @@ void ucc_fast_dump_regs(struct ucc_fast_private * uccf) printk(KERN_INFO "urtry : addr=0x%p, val=0x%08x\n", &uccf->uf_regs->urtry, in_be32(&uccf->uf_regs->urtry)); printk(KERN_INFO "guemr : addr=0x%p, val=0x%02x\n", - &uccf->uf_regs->guemr, uccf->uf_regs->guemr); + &uccf->uf_regs->guemr, in_8(&uccf->uf_regs->guemr)); } EXPORT_SYMBOL(ucc_fast_dump_regs); @@ -96,7 +96,7 @@ EXPORT_SYMBOL(ucc_fast_transmit_on_demand); void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode) { - struct ucc_fast *uf_regs; + struct ucc_fast __iomem *uf_regs; u32 gumr; uf_regs = uccf->uf_regs; @@ -117,7 +117,7 @@ EXPORT_SYMBOL(ucc_fast_enable); void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode) { - struct ucc_fast *uf_regs; + struct ucc_fast __iomem *uf_regs; u32 gumr; uf_regs = uccf->uf_regs; @@ -139,7 +139,7 @@ EXPORT_SYMBOL(ucc_fast_disable); int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** uccf_ret) { struct ucc_fast_private *uccf; - struct ucc_fast *uf_regs; + struct ucc_fast __iomem *uf_regs; u32 gumr; int ret; @@ -216,10 +216,10 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc uccf->stopped_tx = 0; uccf->stopped_rx = 0; uf_regs = uccf->uf_regs; - uccf->p_ucce = (u32 *) & (uf_regs->ucce); - uccf->p_uccm = (u32 *) & (uf_regs->uccm); + uccf->p_ucce = &uf_regs->ucce; + uccf->p_uccm = &uf_regs->uccm; #ifdef CONFIG_UGETH_TX_ON_DEMAND - uccf->p_utodr = (u16 *) & (uf_regs->utodr); + uccf->p_utodr = &uf_regs->utodr; #endif #ifdef STATISTICS uccf->tx_frames = 0; diff --git a/include/asm-powerpc/ucc_fast.h b/include/asm-powerpc/ucc_fast.h index f529f70b1d82..fce16abe7ee1 100644 --- a/include/asm-powerpc/ucc_fast.h +++ b/include/asm-powerpc/ucc_fast.h @@ -156,11 +156,11 @@ struct ucc_fast_info { struct ucc_fast_private { struct ucc_fast_info *uf_info; - struct ucc_fast *uf_regs; /* a pointer to memory map of UCC regs. */ - u32 *p_ucce; /* a pointer to the event register in memory. */ - u32 *p_uccm; /* a pointer to the mask register in memory. */ + struct ucc_fast __iomem *uf_regs; /* a pointer to the UCC regs. */ + u32 __iomem *p_ucce; /* a pointer to the event register in memory. */ + u32 __iomem *p_uccm; /* a pointer to the mask register in memory. */ #ifdef CONFIG_UGETH_TX_ON_DEMAND - u16 *p_utodr; /* pointer to the transmit on demand register */ + u16 __iomem *p_utodr; /* pointer to the transmit on demand register */ #endif int enabled_tx; /* Whether channel is enabled for Tx (ENT) */ int enabled_rx; /* Whether channel is enabled for Rx (ENR) */ -- cgit v1.2.3 From d87eb12785c14de1586e3bad86ca2c0991300339 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Fri, 11 Jul 2008 18:04:45 -0500 Subject: gianfar: Add magic packet and suspend/resume support. Signed-off-by: Scott Wood Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/fsl_soc.c | 3 ++ drivers/net/gianfar.c | 122 +++++++++++++++++++++++++++++++++++++++++- drivers/net/gianfar.h | 12 ++++- drivers/net/gianfar_ethtool.c | 41 +++++++++++++- include/linux/fsl_devices.h | 1 + 5 files changed, 173 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index ef4cb0d67a72..214388e11807 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -352,6 +352,9 @@ static int __init gfar_of_init(void) else gfar_data.interface = PHY_INTERFACE_MODE_MII; + if (of_get_property(np, "fsl,magic-packet", NULL)) + gfar_data.device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET; + ph = of_get_property(np, "phy-handle", NULL); if (ph == NULL) { u32 *fixed_link; diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 25bdd0832df5..36f229ff52f2 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -143,6 +143,9 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int l static void gfar_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); void gfar_halt(struct net_device *dev); +#ifdef CONFIG_PM +static void gfar_halt_nodisable(struct net_device *dev); +#endif void gfar_start(struct net_device *dev); static void gfar_clear_exact_match(struct net_device *dev); static void gfar_set_mac_for_addr(struct net_device *dev, int num, u8 *addr); @@ -216,6 +219,7 @@ static int gfar_probe(struct platform_device *pdev) spin_lock_init(&priv->txlock); spin_lock_init(&priv->rxlock); + spin_lock_init(&priv->bflock); platform_set_drvdata(pdev, dev); @@ -393,6 +397,103 @@ static int gfar_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int gfar_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; + u32 tempval; + + int magic_packet = priv->wol_en && + (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET); + + netif_device_detach(dev); + + if (netif_running(dev)) { + spin_lock_irqsave(&priv->txlock, flags); + spin_lock(&priv->rxlock); + + gfar_halt_nodisable(dev); + + /* Disable Tx, and Rx if wake-on-LAN is disabled. */ + tempval = gfar_read(&priv->regs->maccfg1); + + tempval &= ~MACCFG1_TX_EN; + + if (!magic_packet) + tempval &= ~MACCFG1_RX_EN; + + gfar_write(&priv->regs->maccfg1, tempval); + + spin_unlock(&priv->rxlock); + spin_unlock_irqrestore(&priv->txlock, flags); + +#ifdef CONFIG_GFAR_NAPI + napi_disable(&priv->napi); +#endif + + if (magic_packet) { + /* Enable interrupt on Magic Packet */ + gfar_write(&priv->regs->imask, IMASK_MAG); + + /* Enable Magic Packet mode */ + tempval = gfar_read(&priv->regs->maccfg2); + tempval |= MACCFG2_MPEN; + gfar_write(&priv->regs->maccfg2, tempval); + } else { + phy_stop(priv->phydev); + } + } + + return 0; +} + +static int gfar_resume(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; + u32 tempval; + int magic_packet = priv->wol_en && + (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET); + + if (!netif_running(dev)) { + netif_device_attach(dev); + return 0; + } + + if (!magic_packet && priv->phydev) + phy_start(priv->phydev); + + /* Disable Magic Packet mode, in case something + * else woke us up. + */ + + spin_lock_irqsave(&priv->txlock, flags); + spin_lock(&priv->rxlock); + + tempval = gfar_read(&priv->regs->maccfg2); + tempval &= ~MACCFG2_MPEN; + gfar_write(&priv->regs->maccfg2, tempval); + + gfar_start(dev); + + spin_unlock(&priv->rxlock); + spin_unlock_irqrestore(&priv->txlock, flags); + + netif_device_attach(dev); + +#ifdef CONFIG_GFAR_NAPI + napi_enable(&priv->napi); +#endif + + return 0; +} +#else +#define gfar_suspend NULL +#define gfar_resume NULL +#endif /* Reads the controller's registers to determine what interface * connects it to the PHY. @@ -549,8 +650,9 @@ static void init_registers(struct net_device *dev) } +#ifdef CONFIG_PM /* Halt the receive and transmit queues */ -void gfar_halt(struct net_device *dev) +static void gfar_halt_nodisable(struct net_device *dev) { struct gfar_private *priv = netdev_priv(dev); struct gfar __iomem *regs = priv->regs; @@ -573,6 +675,15 @@ void gfar_halt(struct net_device *dev) (IEVENT_GRSC | IEVENT_GTSC))) cpu_relax(); } +} +#endif + +/* Halt the receive and transmit queues */ +void gfar_halt(struct net_device *dev) +{ + struct gfar_private *priv = netdev_priv(dev); + struct gfar __iomem *regs = priv->regs; + u32 tempval; /* Disable Rx and Tx */ tempval = gfar_read(®s->maccfg1); @@ -1969,7 +2080,12 @@ static irqreturn_t gfar_error(int irq, void *dev_id) u32 events = gfar_read(&priv->regs->ievent); /* Clear IEVENT */ - gfar_write(&priv->regs->ievent, IEVENT_ERR_MASK); + gfar_write(&priv->regs->ievent, events & IEVENT_ERR_MASK); + + /* Magic Packet is not an error. */ + if ((priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && + (events & IEVENT_MAG)) + events &= ~IEVENT_MAG; /* Hmm... */ if (netif_msg_rx_err(priv) || netif_msg_tx_err(priv)) @@ -2042,6 +2158,8 @@ MODULE_ALIAS("platform:fsl-gianfar"); static struct platform_driver gfar_driver = { .probe = gfar_probe, .remove = gfar_remove, + .suspend = gfar_suspend, + .resume = gfar_resume, .driver = { .name = "fsl-gianfar", .owner = THIS_MODULE, diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 27f37c81e52c..5ee518a8782b 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -168,6 +168,7 @@ extern const char gfar_driver_version[]; #define MACCFG2_GMII 0x00000200 #define MACCFG2_HUGEFRAME 0x00000020 #define MACCFG2_LENGTHCHECK 0x00000010 +#define MACCFG2_MPEN 0x00000008 #define ECNTRL_INIT_SETTINGS 0x00001000 #define ECNTRL_TBI_MODE 0x00000020 @@ -240,6 +241,7 @@ extern const char gfar_driver_version[]; #define IEVENT_CRL 0x00020000 #define IEVENT_XFUN 0x00010000 #define IEVENT_RXB0 0x00008000 +#define IEVENT_MAG 0x00000800 #define IEVENT_GRSC 0x00000100 #define IEVENT_RXF0 0x00000080 #define IEVENT_FIR 0x00000008 @@ -252,7 +254,8 @@ extern const char gfar_driver_version[]; #define IEVENT_ERR_MASK \ (IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \ IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \ - | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR) + | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \ + | IEVENT_MAG) #define IMASK_INIT_CLEAR 0x00000000 #define IMASK_BABR 0x80000000 @@ -270,6 +273,7 @@ extern const char gfar_driver_version[]; #define IMASK_CRL 0x00020000 #define IMASK_XFUN 0x00010000 #define IMASK_RXB0 0x00008000 +#define IMASK_MAG 0x00000800 #define IMASK_GTSC 0x00000100 #define IMASK_RXFEN0 0x00000080 #define IMASK_FIR 0x00000008 @@ -737,10 +741,14 @@ struct gfar_private { unsigned int fifo_starve; unsigned int fifo_starve_off; + /* Bitfield update lock */ + spinlock_t bflock; + unsigned char vlan_enable:1, rx_csum_enable:1, extended_hash:1, - bd_stash_en:1; + bd_stash_en:1, + wol_en:1; /* Wake-on-LAN enabled */ unsigned short padding; unsigned int interruptTransmit; diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c index 6007147cc1e9..fb7d3ccc0fdc 100644 --- a/drivers/net/gianfar_ethtool.c +++ b/drivers/net/gianfar_ethtool.c @@ -479,14 +479,13 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) { struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; int err = 0; if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) return -EOPNOTSUPP; if (dev->flags & IFF_UP) { - unsigned long flags; - /* Halt TX and RX, and process the frames which * have already been received */ spin_lock_irqsave(&priv->txlock, flags); @@ -502,7 +501,9 @@ static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) stop_gfar(dev); } + spin_lock_irqsave(&priv->bflock, flags); priv->rx_csum_enable = data; + spin_unlock_irqrestore(&priv->bflock, flags); if (dev->flags & IFF_UP) err = startup_gfar(dev); @@ -564,6 +565,38 @@ static void gfar_set_msglevel(struct net_device *dev, uint32_t data) priv->msg_enable = data; } +#ifdef CONFIG_PM +static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct gfar_private *priv = netdev_priv(dev); + + if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { + wol->supported = WAKE_MAGIC; + wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; + } else { + wol->supported = wol->wolopts = 0; + } +} + +static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; + + if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && + wol->wolopts != 0) + return -EINVAL; + + if (wol->wolopts & ~WAKE_MAGIC) + return -EINVAL; + + spin_lock_irqsave(&priv->bflock, flags); + priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0; + spin_unlock_irqrestore(&priv->bflock, flags); + + return 0; +} +#endif const struct ethtool_ops gfar_ethtool_ops = { .get_settings = gfar_gsettings, @@ -585,4 +618,8 @@ const struct ethtool_ops gfar_ethtool_ops = { .set_tx_csum = gfar_set_tx_csum, .get_msglevel = gfar_get_msglevel, .set_msglevel = gfar_set_msglevel, +#ifdef CONFIG_PM + .get_wol = gfar_get_wol, + .set_wol = gfar_set_wol, +#endif }; diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index 0472877d7ea8..4e625e0094c8 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -69,6 +69,7 @@ struct gianfar_mdio_data { #define FSL_GIANFAR_DEV_HAS_VLAN 0x00000020 #define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH 0x00000040 #define FSL_GIANFAR_DEV_HAS_PADDING 0x00000080 +#define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET 0x00000100 /* Flags in gianfar_platform_data */ #define FSL_GIANFAR_BRD_HAS_PHY_INTR 0x00000001 /* set or use a timer */ -- cgit v1.2.3 From b219108cbacee5f2eaeca63cba013688eeba3bd4 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 12 Jun 2008 08:32:13 -0500 Subject: fs_enet: Remove !CONFIG_PPC_CPM_NEW_BINDING code Now that arch/ppc is gone we always define CONFIG_PPC_CPM_NEW_BINDING so we can remove all the code associated with !CONFIG_PPC_CPM_NEW_BINDING. Also fixed some asm/of_platform.h to linux/of_platform.h (and of_device.h) Signed-off-by: Kumar Gala --- drivers/net/fs_enet/Makefile | 5 - drivers/net/fs_enet/fs_enet-main.c | 310 +------------------------------------ drivers/net/fs_enet/fs_enet.h | 4 - drivers/net/fs_enet/mac-fcc.c | 67 +------- drivers/net/fs_enet/mac-fec.c | 23 +-- drivers/net/fs_enet/mac-scc.c | 37 +---- drivers/net/fs_enet/mii-bitbang.c | 107 ------------- drivers/net/fs_enet/mii-fec.c | 144 +---------------- include/linux/fs_enet_pd.h | 4 - 9 files changed, 5 insertions(+), 696 deletions(-) (limited to 'include') diff --git a/drivers/net/fs_enet/Makefile b/drivers/net/fs_enet/Makefile index 1ffbe0756a0c..d4a305ee3455 100644 --- a/drivers/net/fs_enet/Makefile +++ b/drivers/net/fs_enet/Makefile @@ -8,12 +8,7 @@ fs_enet-$(CONFIG_FS_ENET_HAS_SCC) += mac-scc.o fs_enet-$(CONFIG_FS_ENET_HAS_FEC) += mac-fec.o fs_enet-$(CONFIG_FS_ENET_HAS_FCC) += mac-fcc.o -ifeq ($(CONFIG_PPC_CPM_NEW_BINDING),y) obj-$(CONFIG_FS_ENET_MDIO_FEC) += mii-fec.o obj-$(CONFIG_FS_ENET_MDIO_FCC) += mii-bitbang.o -else -fs_enet-$(CONFIG_FS_ENET_MDIO_FEC) += mii-fec.o -fs_enet-$(CONFIG_FS_ENET_MDIO_FCC) += mii-bitbang.o -endif fs_enet-objs := fs_enet-main.o $(fs_enet-m) diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index 352574a3f056..ac2c48741d04 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -36,25 +36,17 @@ #include #include #include +#include #include #include #include #include -#ifdef CONFIG_PPC_CPM_NEW_BINDING -#include -#endif - #include "fs_enet.h" /*************************************************/ -#ifndef CONFIG_PPC_CPM_NEW_BINDING -static char version[] __devinitdata = - DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n"; -#endif - MODULE_AUTHOR("Pantelis Antoniou "); MODULE_DESCRIPTION("Freescale Ethernet Driver"); MODULE_LICENSE("GPL"); @@ -957,190 +949,6 @@ static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) extern int fs_mii_connect(struct net_device *dev); extern void fs_mii_disconnect(struct net_device *dev); -#ifndef CONFIG_PPC_CPM_NEW_BINDING -static struct net_device *fs_init_instance(struct device *dev, - struct fs_platform_info *fpi) -{ - struct net_device *ndev = NULL; - struct fs_enet_private *fep = NULL; - int privsize, i, r, err = 0, registered = 0; - - fpi->fs_no = fs_get_id(fpi); - /* guard */ - if ((unsigned int)fpi->fs_no >= FS_MAX_INDEX) - return ERR_PTR(-EINVAL); - - privsize = sizeof(*fep) + (sizeof(struct sk_buff **) * - (fpi->rx_ring + fpi->tx_ring)); - - ndev = alloc_etherdev(privsize); - if (!ndev) { - err = -ENOMEM; - goto err; - } - - fep = netdev_priv(ndev); - - fep->dev = dev; - dev_set_drvdata(dev, ndev); - fep->fpi = fpi; - if (fpi->init_ioports) - fpi->init_ioports((struct fs_platform_info *)fpi); - -#ifdef CONFIG_FS_ENET_HAS_FEC - if (fs_get_fec_index(fpi->fs_no) >= 0) - fep->ops = &fs_fec_ops; -#endif - -#ifdef CONFIG_FS_ENET_HAS_SCC - if (fs_get_scc_index(fpi->fs_no) >=0) - fep->ops = &fs_scc_ops; -#endif - -#ifdef CONFIG_FS_ENET_HAS_FCC - if (fs_get_fcc_index(fpi->fs_no) >= 0) - fep->ops = &fs_fcc_ops; -#endif - - if (fep->ops == NULL) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s No matching ops found (%d).\n", - ndev->name, fpi->fs_no); - err = -EINVAL; - goto err; - } - - r = (*fep->ops->setup_data)(ndev); - if (r != 0) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s setup_data failed\n", - ndev->name); - err = r; - goto err; - } - - /* point rx_skbuff, tx_skbuff */ - fep->rx_skbuff = (struct sk_buff **)&fep[1]; - fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring; - - /* init locks */ - spin_lock_init(&fep->lock); - spin_lock_init(&fep->tx_lock); - - /* - * Set the Ethernet address. - */ - for (i = 0; i < 6; i++) - ndev->dev_addr[i] = fpi->macaddr[i]; - - r = (*fep->ops->allocate_bd)(ndev); - - if (fep->ring_base == NULL) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s buffer descriptor alloc failed (%d).\n", ndev->name, r); - err = r; - goto err; - } - - /* - * Set receive and transmit descriptor base. - */ - fep->rx_bd_base = fep->ring_base; - fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring; - - /* initialize ring size variables */ - fep->tx_ring = fpi->tx_ring; - fep->rx_ring = fpi->rx_ring; - - /* - * The FEC Ethernet specific entries in the device structure. - */ - ndev->open = fs_enet_open; - ndev->hard_start_xmit = fs_enet_start_xmit; - ndev->tx_timeout = fs_timeout; - ndev->watchdog_timeo = 2 * HZ; - ndev->stop = fs_enet_close; - ndev->get_stats = fs_enet_get_stats; - ndev->set_multicast_list = fs_set_multicast_list; - -#ifdef CONFIG_NET_POLL_CONTROLLER - ndev->poll_controller = fs_enet_netpoll; -#endif - - netif_napi_add(ndev, &fep->napi, - fs_enet_rx_napi, fpi->napi_weight); - - ndev->ethtool_ops = &fs_ethtool_ops; - ndev->do_ioctl = fs_ioctl; - - init_timer(&fep->phy_timer_list); - - netif_carrier_off(ndev); - - err = register_netdev(ndev); - if (err != 0) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s register_netdev failed.\n", ndev->name); - goto err; - } - registered = 1; - - - return ndev; - -err: - if (ndev != NULL) { - if (registered) - unregister_netdev(ndev); - - if (fep && fep->ops) { - (*fep->ops->free_bd)(ndev); - (*fep->ops->cleanup_data)(ndev); - } - - free_netdev(ndev); - } - - dev_set_drvdata(dev, NULL); - - return ERR_PTR(err); -} - -static int fs_cleanup_instance(struct net_device *ndev) -{ - struct fs_enet_private *fep; - const struct fs_platform_info *fpi; - struct device *dev; - - if (ndev == NULL) - return -EINVAL; - - fep = netdev_priv(ndev); - if (fep == NULL) - return -EINVAL; - - fpi = fep->fpi; - - unregister_netdev(ndev); - - dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t), - (void __force *)fep->ring_base, fep->ring_mem_addr); - - /* reset it */ - (*fep->ops->cleanup_data)(ndev); - - dev = fep->dev; - if (dev != NULL) { - dev_set_drvdata(dev, NULL); - fep->dev = NULL; - } - - free_netdev(ndev); - - return 0; -} -#endif - /**************************************************************************************/ /* handy pointer to the immap */ @@ -1167,7 +975,6 @@ static void cleanup_immap(void) /**************************************************************************************/ -#ifdef CONFIG_PPC_CPM_NEW_BINDING static int __devinit find_phy(struct device_node *np, struct fs_platform_info *fpi) { @@ -1399,121 +1206,6 @@ static void __exit fs_cleanup(void) of_unregister_platform_driver(&fs_enet_driver); cleanup_immap(); } -#else -static int __devinit fs_enet_probe(struct device *dev) -{ - struct net_device *ndev; - - /* no fixup - no device */ - if (dev->platform_data == NULL) { - printk(KERN_INFO "fs_enet: " - "probe called with no platform data; " - "remove unused devices\n"); - return -ENODEV; - } - - ndev = fs_init_instance(dev, dev->platform_data); - if (IS_ERR(ndev)) - return PTR_ERR(ndev); - return 0; -} - -static int fs_enet_remove(struct device *dev) -{ - return fs_cleanup_instance(dev_get_drvdata(dev)); -} - -static struct device_driver fs_enet_fec_driver = { - .name = "fsl-cpm-fec", - .bus = &platform_bus_type, - .probe = fs_enet_probe, - .remove = fs_enet_remove, -#ifdef CONFIG_PM -/* .suspend = fs_enet_suspend, TODO */ -/* .resume = fs_enet_resume, TODO */ -#endif -}; - -static struct device_driver fs_enet_scc_driver = { - .name = "fsl-cpm-scc", - .bus = &platform_bus_type, - .probe = fs_enet_probe, - .remove = fs_enet_remove, -#ifdef CONFIG_PM -/* .suspend = fs_enet_suspend, TODO */ -/* .resume = fs_enet_resume, TODO */ -#endif -}; - -static struct device_driver fs_enet_fcc_driver = { - .name = "fsl-cpm-fcc", - .bus = &platform_bus_type, - .probe = fs_enet_probe, - .remove = fs_enet_remove, -#ifdef CONFIG_PM -/* .suspend = fs_enet_suspend, TODO */ -/* .resume = fs_enet_resume, TODO */ -#endif -}; - -static int __init fs_init(void) -{ - int r; - - printk(KERN_INFO - "%s", version); - - r = setup_immap(); - if (r != 0) - return r; - -#ifdef CONFIG_FS_ENET_HAS_FCC - /* let's insert mii stuff */ - r = fs_enet_mdio_bb_init(); - - if (r != 0) { - printk(KERN_ERR DRV_MODULE_NAME - "BB PHY init failed.\n"); - return r; - } - r = driver_register(&fs_enet_fcc_driver); - if (r != 0) - goto err; -#endif - -#ifdef CONFIG_FS_ENET_HAS_FEC - r = fs_enet_mdio_fec_init(); - if (r != 0) { - printk(KERN_ERR DRV_MODULE_NAME - "FEC PHY init failed.\n"); - return r; - } - - r = driver_register(&fs_enet_fec_driver); - if (r != 0) - goto err; -#endif - -#ifdef CONFIG_FS_ENET_HAS_SCC - r = driver_register(&fs_enet_scc_driver); - if (r != 0) - goto err; -#endif - - return 0; -err: - cleanup_immap(); - return r; -} - -static void __exit fs_cleanup(void) -{ - driver_unregister(&fs_enet_fec_driver); - driver_unregister(&fs_enet_fcc_driver); - driver_unregister(&fs_enet_scc_driver); - cleanup_immap(); -} -#endif #ifdef CONFIG_NET_POLL_CONTROLLER static void fs_enet_netpoll(struct net_device *dev) diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h index e05389c49bbb..db46d2e72329 100644 --- a/drivers/net/fs_enet/fs_enet.h +++ b/drivers/net/fs_enet/fs_enet.h @@ -138,10 +138,6 @@ struct fs_enet_private { }; /***************************************************************************/ -#ifndef CONFIG_PPC_CPM_NEW_BINDING -int fs_enet_mdio_bb_init(void); -int fs_enet_mdio_fec_init(void); -#endif void fs_init_bds(struct net_device *dev); void fs_cleanup_bds(struct net_device *dev); diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c index 8268b3535b30..0a97fc2d97ec 100644 --- a/drivers/net/fs_enet/mac-fcc.c +++ b/drivers/net/fs_enet/mac-fcc.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -42,10 +43,6 @@ #include #include -#ifdef CONFIG_PPC_CPM_NEW_BINDING -#include -#endif - #include "fs_enet.h" /*************************************************/ @@ -87,7 +84,6 @@ static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 op) static int do_pd_setup(struct fs_enet_private *fep) { -#ifdef CONFIG_PPC_CPM_NEW_BINDING struct of_device *ofdev = to_of_device(fep->dev); struct fs_platform_info *fpi = fep->fpi; int ret = -EINVAL; @@ -125,44 +121,6 @@ out_fccp: iounmap(fep->fcc.fccp); out: return ret; -#else - struct platform_device *pdev = to_platform_device(fep->dev); - struct resource *r; - - /* Fill out IRQ field */ - fep->interrupt = platform_get_irq(pdev, 0); - if (fep->interrupt < 0) - return -EINVAL; - - /* Attach the memory for the FCC Parameter RAM */ - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fcc_pram"); - fep->fcc.ep = ioremap(r->start, r->end - r->start + 1); - if (fep->fcc.ep == NULL) - return -EINVAL; - - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fcc_regs"); - fep->fcc.fccp = ioremap(r->start, r->end - r->start + 1); - if (fep->fcc.fccp == NULL) - return -EINVAL; - - if (fep->fpi->fcc_regs_c) { - fep->fcc.fcccp = (void __iomem *)fep->fpi->fcc_regs_c; - } else { - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "fcc_regs_c"); - fep->fcc.fcccp = ioremap(r->start, - r->end - r->start + 1); - } - - if (fep->fcc.fcccp == NULL) - return -EINVAL; - - fep->fcc.mem = (void __iomem *)fep->fpi->mem_offset; - if (fep->fcc.mem == NULL) - return -EINVAL; - - return 0; -#endif } #define FCC_NAPI_RX_EVENT_MSK (FCC_ENET_RXF | FCC_ENET_RXB) @@ -173,17 +131,6 @@ out: static int setup_data(struct net_device *dev) { struct fs_enet_private *fep = netdev_priv(dev); -#ifndef CONFIG_PPC_CPM_NEW_BINDING - struct fs_platform_info *fpi = fep->fpi; - - fpi->cp_command = (fpi->cp_page << 26) | - (fpi->cp_block << 21) | - (12 << 6); - - fep->fcc.idx = fs_get_fcc_index(fpi->fs_no); - if ((unsigned int)fep->fcc.idx >= 3) /* max 3 FCCs */ - return -EINVAL; -#endif if (do_pd_setup(fep) != 0) return -EINVAL; @@ -304,9 +251,6 @@ static void restart(struct net_device *dev) fcc_enet_t __iomem *ep = fep->fcc.ep; dma_addr_t rx_bd_base_phys, tx_bd_base_phys; u16 paddrh, paddrm, paddrl; -#ifndef CONFIG_PPC_CPM_NEW_BINDING - u16 mem_addr; -#endif const unsigned char *mac; int i; @@ -338,19 +282,10 @@ static void restart(struct net_device *dev) * this area. */ -#ifdef CONFIG_PPC_CPM_NEW_BINDING W16(ep, fen_genfcc.fcc_riptr, fpi->dpram_offset); W16(ep, fen_genfcc.fcc_tiptr, fpi->dpram_offset + 32); W16(ep, fen_padptr, fpi->dpram_offset + 64); -#else - mem_addr = (u32) fep->fcc.mem; /* de-fixup dpram offset */ - - W16(ep, fen_genfcc.fcc_riptr, (mem_addr & 0xffff)); - W16(ep, fen_genfcc.fcc_tiptr, ((mem_addr + 32) & 0xffff)); - - W16(ep, fen_padptr, mem_addr + 64); -#endif /* fill with special symbol... */ memset_io(fep->fcc.mem + fpi->dpram_offset + 64, 0x88, 32); diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c index 8a311d1e435b..0a7d1c5c6524 100644 --- a/drivers/net/fs_enet/mac-fec.c +++ b/drivers/net/fs_enet/mac-fec.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -43,10 +44,6 @@ #include #endif -#ifdef CONFIG_PPC_CPM_NEW_BINDING -#include -#endif - #include "fs_enet.h" #include "fec.h" @@ -99,7 +96,6 @@ static int whack_reset(fec_t __iomem *fecp) static int do_pd_setup(struct fs_enet_private *fep) { -#ifdef CONFIG_PPC_CPM_NEW_BINDING struct of_device *ofdev = to_of_device(fep->dev); fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL); @@ -111,23 +107,6 @@ static int do_pd_setup(struct fs_enet_private *fep) return -EINVAL; return 0; -#else - struct platform_device *pdev = to_platform_device(fep->dev); - struct resource *r; - - /* Fill out IRQ field */ - fep->interrupt = platform_get_irq_byname(pdev,"interrupt"); - if (fep->interrupt < 0) - return -EINVAL; - - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); - fep->fec.fecp = ioremap(r->start, r->end - r->start + 1); - - if(fep->fec.fecp == NULL) - return -EINVAL; - - return 0; -#endif } #define FEC_NAPI_RX_EVENT_MSK (FEC_ENET_RXF | FEC_ENET_RXB) diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c index e3557eca7b6d..029b3c7ef29c 100644 --- a/drivers/net/fs_enet/mac-scc.c +++ b/drivers/net/fs_enet/mac-scc.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -43,10 +44,6 @@ #include #endif -#ifdef CONFIG_PPC_CPM_NEW_BINDING -#include -#endif - #include "fs_enet.h" /*************************************************/ @@ -99,7 +96,6 @@ static inline int scc_cr_cmd(struct fs_enet_private *fep, u32 op) static int do_pd_setup(struct fs_enet_private *fep) { -#ifdef CONFIG_PPC_CPM_NEW_BINDING struct of_device *ofdev = to_of_device(fep->dev); fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL); @@ -115,27 +111,6 @@ static int do_pd_setup(struct fs_enet_private *fep) iounmap(fep->scc.sccp); return -EINVAL; } -#else - struct platform_device *pdev = to_platform_device(fep->dev); - struct resource *r; - - /* Fill out IRQ field */ - fep->interrupt = platform_get_irq_byname(pdev, "interrupt"); - if (fep->interrupt < 0) - return -EINVAL; - - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); - fep->scc.sccp = ioremap(r->start, r->end - r->start + 1); - - if (fep->scc.sccp == NULL) - return -EINVAL; - - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pram"); - fep->scc.ep = ioremap(r->start, r->end - r->start + 1); - - if (fep->scc.ep == NULL) - return -EINVAL; -#endif return 0; } @@ -149,16 +124,6 @@ static int setup_data(struct net_device *dev) { struct fs_enet_private *fep = netdev_priv(dev); -#ifndef CONFIG_PPC_CPM_NEW_BINDING - struct fs_platform_info *fpi = fep->fpi; - - fep->scc.idx = fs_get_scc_index(fpi->fs_no); - if ((unsigned int)fep->fcc.idx >= 4) /* max 4 SCCs */ - return -EINVAL; - - fpi->cp_command = fep->fcc.idx << 6; -#endif - do_pd_setup(fep); fep->scc.hthi = 0; diff --git a/drivers/net/fs_enet/mii-bitbang.c b/drivers/net/fs_enet/mii-bitbang.c index 1620030cd33c..be4b72f4f49a 100644 --- a/drivers/net/fs_enet/mii-bitbang.c +++ b/drivers/net/fs_enet/mii-bitbang.c @@ -22,10 +22,7 @@ #include #include #include - -#ifdef CONFIG_PPC_CPM_NEW_BINDING #include -#endif #include "fs_enet.h" @@ -110,7 +107,6 @@ static struct mdiobb_ops bb_ops = { .get_mdio_data = mdio_read, }; -#ifdef CONFIG_PPC_CPM_NEW_BINDING static int __devinit fs_mii_bitbang_init(struct mii_bus *bus, struct device_node *np) { @@ -271,106 +267,3 @@ static void fs_enet_mdio_bb_exit(void) module_init(fs_enet_mdio_bb_init); module_exit(fs_enet_mdio_bb_exit); -#else -static int __devinit fs_mii_bitbang_init(struct bb_info *bitbang, - struct fs_mii_bb_platform_info *fmpi) -{ - bitbang->dir = (u32 __iomem *)fmpi->mdio_dir.offset; - bitbang->dat = (u32 __iomem *)fmpi->mdio_dat.offset; - bitbang->mdio_msk = 1U << (31 - fmpi->mdio_dat.bit); - bitbang->mdc_msk = 1U << (31 - fmpi->mdc_dat.bit); - - return 0; -} - -static int __devinit fs_enet_mdio_probe(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct fs_mii_bb_platform_info *pdata; - struct mii_bus *new_bus; - struct bb_info *bitbang; - int err = 0; - - if (NULL == dev) - return -EINVAL; - - bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL); - - if (NULL == bitbang) - return -ENOMEM; - - bitbang->ctrl.ops = &bb_ops; - - new_bus = alloc_mdio_bitbang(&bitbang->ctrl); - - if (NULL == new_bus) - return -ENOMEM; - - new_bus->name = "BB MII Bus", - snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id); - - new_bus->phy_mask = ~0x9; - pdata = (struct fs_mii_bb_platform_info *)pdev->dev.platform_data; - - if (NULL == pdata) { - printk(KERN_ERR "gfar mdio %d: Missing platform data!\n", pdev->id); - return -ENODEV; - } - - /*set up workspace*/ - fs_mii_bitbang_init(bitbang, pdata); - - new_bus->priv = bitbang; - - new_bus->irq = pdata->irq; - - new_bus->dev = dev; - dev_set_drvdata(dev, new_bus); - - err = mdiobus_register(new_bus); - - if (0 != err) { - printk (KERN_ERR "%s: Cannot register as MDIO bus\n", - new_bus->name); - goto bus_register_fail; - } - - return 0; - -bus_register_fail: - free_mdio_bitbang(new_bus); - kfree(bitbang); - - return err; -} - -static int fs_enet_mdio_remove(struct device *dev) -{ - struct mii_bus *bus = dev_get_drvdata(dev); - - mdiobus_unregister(bus); - - dev_set_drvdata(dev, NULL); - - free_mdio_bitbang(bus); - - return 0; -} - -static struct device_driver fs_enet_bb_mdio_driver = { - .name = "fsl-bb-mdio", - .bus = &platform_bus_type, - .probe = fs_enet_mdio_probe, - .remove = fs_enet_mdio_remove, -}; - -int fs_enet_mdio_bb_init(void) -{ - return driver_register(&fs_enet_bb_mdio_driver); -} - -void fs_enet_mdio_bb_exit(void) -{ - driver_unregister(&fs_enet_bb_mdio_driver); -} -#endif diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c index 8f6a43b0e0ff..695f74cc4398 100644 --- a/drivers/net/fs_enet/mii-fec.c +++ b/drivers/net/fs_enet/mii-fec.c @@ -31,15 +31,12 @@ #include #include #include +#include #include #include #include -#ifdef CONFIG_PPC_CPM_NEW_BINDING -#include -#endif - #include "fs_enet.h" #include "fec.h" @@ -51,52 +48,6 @@ #define FEC_MII_LOOPS 10000 -#ifndef CONFIG_PPC_CPM_NEW_BINDING -static int match_has_phy (struct device *dev, void* data) -{ - struct platform_device* pdev = container_of(dev, struct platform_device, dev); - struct fs_platform_info* fpi; - if(strcmp(pdev->name, (char*)data)) - { - return 0; - } - - fpi = pdev->dev.platform_data; - if((fpi)&&(fpi->has_phy)) - return 1; - return 0; -} - -static int fs_mii_fec_init(struct fec_info* fec, struct fs_mii_fec_platform_info *fmpi) -{ - struct resource *r; - fec_t __iomem *fecp; - char* name = "fsl-cpm-fec"; - - /* we need fec in order to be useful */ - struct platform_device *fec_pdev = - container_of(bus_find_device(&platform_bus_type, NULL, name, match_has_phy), - struct platform_device, dev); - - if(fec_pdev == NULL) { - printk(KERN_ERR"Unable to find PHY for %s", name); - return -ENODEV; - } - - r = platform_get_resource_byname(fec_pdev, IORESOURCE_MEM, "regs"); - - fec->fecp = fecp = ioremap(r->start,sizeof(fec_t)); - fec->mii_speed = fmpi->mii_speed; - - setbits32(&fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ - setbits32(&fecp->fec_ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); - out_be32(&fecp->fec_ievent, FEC_ENET_MII); - out_be32(&fecp->fec_mii_speed, fec->mii_speed); - - return 0; -} -#endif - static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location) { struct fec_info* fec = bus->priv; @@ -151,7 +102,6 @@ static int fs_enet_fec_mii_reset(struct mii_bus *bus) return 0; } -#ifdef CONFIG_PPC_CPM_NEW_BINDING static void __devinit add_phy(struct mii_bus *bus, struct device_node *np) { const u32 *data; @@ -286,95 +236,3 @@ static void fs_enet_mdio_fec_exit(void) module_init(fs_enet_mdio_fec_init); module_exit(fs_enet_mdio_fec_exit); -#else -static int __devinit fs_enet_fec_mdio_probe(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct fs_mii_fec_platform_info *pdata; - struct mii_bus *new_bus; - struct fec_info *fec; - int err = 0; - if (NULL == dev) - return -EINVAL; - new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL); - - if (NULL == new_bus) - return -ENOMEM; - - fec = kzalloc(sizeof(struct fec_info), GFP_KERNEL); - - if (NULL == fec) - return -ENOMEM; - - new_bus->name = "FEC MII Bus", - new_bus->read = &fs_enet_fec_mii_read, - new_bus->write = &fs_enet_fec_mii_write, - new_bus->reset = &fs_enet_fec_mii_reset, - snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id); - - pdata = (struct fs_mii_fec_platform_info *)pdev->dev.platform_data; - - if (NULL == pdata) { - printk(KERN_ERR "fs_enet FEC mdio %d: Missing platform data!\n", pdev->id); - return -ENODEV; - } - - /*set up workspace*/ - - fs_mii_fec_init(fec, pdata); - new_bus->priv = fec; - - new_bus->irq = pdata->irq; - - new_bus->dev = dev; - dev_set_drvdata(dev, new_bus); - - err = mdiobus_register(new_bus); - - if (0 != err) { - printk (KERN_ERR "%s: Cannot register as MDIO bus\n", - new_bus->name); - goto bus_register_fail; - } - - return 0; - -bus_register_fail: - kfree(new_bus); - - return err; -} - - -static int fs_enet_fec_mdio_remove(struct device *dev) -{ - struct mii_bus *bus = dev_get_drvdata(dev); - - mdiobus_unregister(bus); - - dev_set_drvdata(dev, NULL); - kfree(bus->priv); - - bus->priv = NULL; - kfree(bus); - - return 0; -} - -static struct device_driver fs_enet_fec_mdio_driver = { - .name = "fsl-cpm-fec-mdio", - .bus = &platform_bus_type, - .probe = fs_enet_fec_mdio_probe, - .remove = fs_enet_fec_mdio_remove, -}; - -int fs_enet_mdio_fec_init(void) -{ - return driver_register(&fs_enet_fec_mdio_driver); -} - -void fs_enet_mdio_fec_exit(void) -{ - driver_unregister(&fs_enet_fec_mdio_driver); -} -#endif diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h index 9bc045b8c478..0ba21ee0f58c 100644 --- a/include/linux/fs_enet_pd.h +++ b/include/linux/fs_enet_pd.h @@ -135,11 +135,7 @@ struct fs_platform_info { u32 device_flags; int phy_addr; /* the phy address (-1 no phy) */ -#ifdef CONFIG_PPC_CPM_NEW_BINDING char bus_id[16]; -#else - const char* bus_id; -#endif int phy_irq; /* the phy irq (if it exists) */ const struct fs_mii_bus_info *bus_info; -- cgit v1.2.3 From 6cfd8990e27d3a491c1c605d6cbc18a46ae51fef Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Wed, 9 Jul 2008 10:03:28 -0500 Subject: powerpc: rework FSL Book-E PTE access and TLB miss This converts the FSL Book-E PTE access and TLB miss handling to match with the recent changes to 44x that introduce support for non-atomic PTE operations in pgtable-ppc32.h and removes write back to the PTE from the TLB miss handlers. In addition, the DSI interrupt code no longer tries to fixup write permission, this is left to generic code, and _PAGE_HWWRITE is gone. Signed-off-by: Kumar Gala --- arch/powerpc/kernel/head_fsl_booke.S | 168 +++++++++-------------------------- include/asm-powerpc/pgtable-ppc32.h | 15 +--- 2 files changed, 48 insertions(+), 135 deletions(-) (limited to 'include') diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index c4268500e856..7d554968b635 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -483,90 +483,16 @@ interrupt_base: /* Data Storage Interrupt */ START_EXCEPTION(DataStorage) - mtspr SPRN_SPRG0, r10 /* Save some working registers */ - mtspr SPRN_SPRG1, r11 - mtspr SPRN_SPRG4W, r12 - mtspr SPRN_SPRG5W, r13 - mfcr r11 - mtspr SPRN_SPRG7W, r11 - - /* - * Check if it was a store fault, if not then bail - * because a user tried to access a kernel or - * read-protected page. Otherwise, get the - * offending address and handle it. - */ - mfspr r10, SPRN_ESR - andis. r10, r10, ESR_ST@h - beq 2f - - mfspr r10, SPRN_DEAR /* Get faulting address */ - - /* If we are faulting a kernel address, we have to use the - * kernel page tables. - */ - lis r11, PAGE_OFFSET@h - cmplw 0, r10, r11 - bge 2f - - /* Get the PGD for the current thread */ -3: - mfspr r11,SPRN_SPRG3 - lwz r11,PGDIR(r11) -4: - FIND_PTE - - /* Are _PAGE_USER & _PAGE_RW set & _PAGE_HWWRITE not? */ - andi. r13, r11, _PAGE_RW|_PAGE_USER|_PAGE_HWWRITE - cmpwi 0, r13, _PAGE_RW|_PAGE_USER - bne 2f /* Bail if not */ - - /* Update 'changed'. */ - ori r11, r11, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE - stw r11, PTE_FLAGS_OFFSET(r12) /* Update Linux page table */ - - /* MAS2 not updated as the entry does exist in the tlb, this - fault taken to detect state transition (eg: COW -> DIRTY) - */ - andi. r11, r11, _PAGE_HWEXEC - rlwimi r11, r11, 31, 27, 27 /* SX <- _PAGE_HWEXEC */ - ori r11, r11, (MAS3_UW|MAS3_SW|MAS3_UR|MAS3_SR)@l /* set static perms */ - - /* update search PID in MAS6, AS = 0 */ - mfspr r12, SPRN_PID0 - slwi r12, r12, 16 - mtspr SPRN_MAS6, r12 - - /* find the TLB index that caused the fault. It has to be here. */ - tlbsx 0, r10 - - /* only update the perm bits, assume the RPN is fine */ - mfspr r12, SPRN_MAS3 - rlwimi r12, r11, 0, 20, 31 - mtspr SPRN_MAS3,r12 - tlbwe - - /* Done...restore registers and get out of here. */ - mfspr r11, SPRN_SPRG7R - mtcr r11 - mfspr r13, SPRN_SPRG5R - mfspr r12, SPRN_SPRG4R - mfspr r11, SPRN_SPRG1 - mfspr r10, SPRN_SPRG0 - rfi /* Force context change */ - -2: - /* - * The bailout. Restore registers to pre-exception conditions - * and call the heavyweights to help us out. - */ - mfspr r11, SPRN_SPRG7R - mtcr r11 - mfspr r13, SPRN_SPRG5R - mfspr r12, SPRN_SPRG4R - mfspr r11, SPRN_SPRG1 - mfspr r10, SPRN_SPRG0 - b data_access + NORMAL_EXCEPTION_PROLOG + mfspr r5,SPRN_ESR /* Grab the ESR, save it, pass arg3 */ + stw r5,_ESR(r11) + mfspr r4,SPRN_DEAR /* Grab the DEAR, save it, pass arg2 */ + andis. r10,r5,(ESR_ILK|ESR_DLK)@h + bne 1f + EXC_XFER_EE_LITE(0x0300, handle_page_fault) +1: + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_EE_LITE(0x0300, CacheLockingException) /* Instruction Storage Interrupt */ INSTRUCTION_STORAGE_EXCEPTION @@ -645,15 +571,30 @@ interrupt_base: lwz r11,PGDIR(r11) 4: + /* Mask of required permission bits. Note that while we + * do copy ESR:ST to _PAGE_RW position as trying to write + * to an RO page is pretty common, we don't do it with + * _PAGE_DIRTY. We could do it, but it's a fairly rare + * event so I'd rather take the overhead when it happens + * rather than adding an instruction here. We should measure + * whether the whole thing is worth it in the first place + * as we could avoid loading SPRN_ESR completely in the first + * place... + * + * TODO: Is it worth doing that mfspr & rlwimi in the first + * place or can we save a couple of instructions here ? + */ + mfspr r12,SPRN_ESR + li r13,_PAGE_PRESENT|_PAGE_ACCESSED + rlwimi r13,r12,11,29,29 + FIND_PTE - andi. r13, r11, _PAGE_PRESENT /* Is the page present? */ - beq 2f /* Bail if not present */ + andc. r13,r13,r11 /* Check permission */ + bne 2f /* Bail if permission mismach */ #ifdef CONFIG_PTE_64BIT lwz r13, 0(r12) #endif - ori r11, r11, _PAGE_ACCESSED - stw r11, PTE_FLAGS_OFFSET(r12) /* Jump to common tlb load */ b finish_tlb_load @@ -667,7 +608,7 @@ interrupt_base: mfspr r12, SPRN_SPRG4R mfspr r11, SPRN_SPRG1 mfspr r10, SPRN_SPRG0 - b data_access + b DataStorage /* Instruction TLB Error Interrupt */ /* @@ -705,15 +646,16 @@ interrupt_base: lwz r11,PGDIR(r11) 4: + /* Make up the required permissions */ + li r13,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_HWEXEC + FIND_PTE - andi. r13, r11, _PAGE_PRESENT /* Is the page present? */ - beq 2f /* Bail if not present */ + andc. r13,r13,r11 /* Check permission */ + bne 2f /* Bail if permission mismach */ #ifdef CONFIG_PTE_64BIT lwz r13, 0(r12) #endif - ori r11, r11, _PAGE_ACCESSED - stw r11, PTE_FLAGS_OFFSET(r12) /* Jump to common TLB load point */ b finish_tlb_load @@ -768,29 +710,13 @@ interrupt_base: * Local functions */ - /* - * Data TLB exceptions will bail out to this point - * if they can't resolve the lightweight TLB fault. - */ -data_access: - NORMAL_EXCEPTION_PROLOG - mfspr r5,SPRN_ESR /* Grab the ESR, save it, pass arg3 */ - stw r5,_ESR(r11) - mfspr r4,SPRN_DEAR /* Grab the DEAR, save it, pass arg2 */ - andis. r10,r5,(ESR_ILK|ESR_DLK)@h - bne 1f - EXC_XFER_EE_LITE(0x0300, handle_page_fault) -1: - addi r3,r1,STACK_FRAME_OVERHEAD - EXC_XFER_EE_LITE(0x0300, CacheLockingException) - /* - * Both the instruction and data TLB miss get to this * point to load the TLB. * r10 - EA of fault * r11 - TLB (info from Linux PTE) - * r12, r13 - available to use + * r12 - available to use + * r13 - upper bits of PTE (if PTE_64BIT) or available to use * CR5 - results of addr >= PAGE_OFFSET * MAS0, MAS1 - loaded with proper value when we get here * MAS2, MAS3 - will need additional info from Linux PTE @@ -812,20 +738,14 @@ finish_tlb_load: #endif mtspr SPRN_MAS2, r12 - bge 5, 1f - - /* is user addr */ - andi. r12, r11, (_PAGE_USER | _PAGE_HWWRITE | _PAGE_HWEXEC) + li r10, (_PAGE_HWEXEC | _PAGE_PRESENT) + rlwimi r10, r11, 31, 29, 29 /* extract _PAGE_DIRTY into SW */ + and r12, r11, r10 andi. r10, r11, _PAGE_USER /* Test for _PAGE_USER */ - srwi r10, r12, 1 - or r12, r12, r10 /* Copy user perms into supervisor */ - iseleq r12, 0, r12 - b 2f - - /* is kernel addr */ -1: rlwinm r12, r11, 31, 29, 29 /* Extract _PAGE_HWWRITE into SW */ - ori r12, r12, (MAS3_SX | MAS3_SR) - + slwi r10, r12, 1 + or r10, r10, r12 + iseleq r12, r12, r10 + #ifdef CONFIG_PTE_64BIT 2: rlwimi r12, r13, 24, 0, 7 /* grab RPN[32:39] */ rlwimi r12, r11, 24, 8, 19 /* grab RPN[40:51] */ diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h index 73015f0139de..3a96d001cb75 100644 --- a/include/asm-powerpc/pgtable-ppc32.h +++ b/include/asm-powerpc/pgtable-ppc32.h @@ -295,10 +295,10 @@ extern int icache_44x_need_flush; #define _PAGE_PRESENT 0x00001 /* S: PTE contains a translation */ #define _PAGE_USER 0x00002 /* S: User page (maps to UR) */ #define _PAGE_FILE 0x00002 /* S: when !present: nonlinear file mapping */ -#define _PAGE_ACCESSED 0x00004 /* S: Page referenced */ -#define _PAGE_HWWRITE 0x00008 /* H: Dirty & RW, set in exception */ -#define _PAGE_RW 0x00010 /* S: Write permission */ -#define _PAGE_HWEXEC 0x00020 /* H: UX permission */ +#define _PAGE_RW 0x00004 /* S: Write permission (SW) */ +#define _PAGE_DIRTY 0x00008 /* S: Page dirty */ +#define _PAGE_HWEXEC 0x00010 /* H: SX permission */ +#define _PAGE_ACCESSED 0x00020 /* S: Page referenced */ #define _PAGE_ENDIAN 0x00040 /* H: E bit */ #define _PAGE_GUARDED 0x00080 /* H: G bit */ @@ -307,21 +307,14 @@ extern int icache_44x_need_flush; #define _PAGE_WRITETHRU 0x00400 /* H: W bit */ #ifdef CONFIG_PTE_64BIT -#define _PAGE_DIRTY 0x08000 /* S: Page dirty */ - /* ERPN in a PTE never gets cleared, ignore it */ #define _PTE_NONE_MASK 0xffffffffffff0000ULL -#else -#define _PAGE_DIRTY 0x00800 /* S: Page dirty */ #endif #define _PMD_PRESENT 0 #define _PMD_PRESENT_MASK (PAGE_MASK) #define _PMD_BAD (~PAGE_MASK) -/* Until my rework is finished, FSL BookE still needs atomic PTE updates */ -#define PTE_ATOMIC_UPDATES 1 - #elif defined(CONFIG_8xx) /* Definitions for 8xx embedded chips. */ #define _PAGE_PRESENT 0x0001 /* Page is valid */ -- cgit v1.2.3 From 8cac39b99b731c627097ce704acac1ff422d8286 Mon Sep 17 00:00:00 2001 From: Dimitri Sivanich Date: Wed, 2 Jul 2008 15:47:55 -0500 Subject: [IA64] Update ia64 mmr list for SGI uv This patch updates the ia64 mmr list for SGI uv. Signed-off-by: Dimitri Sivanich Signed-off-by: Tony Luck --- include/asm-ia64/uv/uv_mmrs.h | 423 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 415 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/asm-ia64/uv/uv_mmrs.h b/include/asm-ia64/uv/uv_mmrs.h index 1cc1dbb0182f..c149ef085437 100644 --- a/include/asm-ia64/uv/uv_mmrs.h +++ b/include/asm-ia64/uv/uv_mmrs.h @@ -11,11 +11,284 @@ #ifndef __ASM_IA64_UV_MMRS__ #define __ASM_IA64_UV_MMRS__ -/* - * AUTO GENERATED - Do not edit - */ +#define UV_MMR_ENABLE (1UL << 63) + +/* ========================================================================= */ +/* UVH_BAU_DATA_CONFIG */ +/* ========================================================================= */ +#define UVH_BAU_DATA_CONFIG 0x61680UL +#define UVH_BAU_DATA_CONFIG_32 0x0438 + +#define UVH_BAU_DATA_CONFIG_VECTOR_SHFT 0 +#define UVH_BAU_DATA_CONFIG_VECTOR_MASK 0x00000000000000ffUL +#define UVH_BAU_DATA_CONFIG_DM_SHFT 8 +#define UVH_BAU_DATA_CONFIG_DM_MASK 0x0000000000000700UL +#define UVH_BAU_DATA_CONFIG_DESTMODE_SHFT 11 +#define UVH_BAU_DATA_CONFIG_DESTMODE_MASK 0x0000000000000800UL +#define UVH_BAU_DATA_CONFIG_STATUS_SHFT 12 +#define UVH_BAU_DATA_CONFIG_STATUS_MASK 0x0000000000001000UL +#define UVH_BAU_DATA_CONFIG_P_SHFT 13 +#define UVH_BAU_DATA_CONFIG_P_MASK 0x0000000000002000UL +#define UVH_BAU_DATA_CONFIG_T_SHFT 15 +#define UVH_BAU_DATA_CONFIG_T_MASK 0x0000000000008000UL +#define UVH_BAU_DATA_CONFIG_M_SHFT 16 +#define UVH_BAU_DATA_CONFIG_M_MASK 0x0000000000010000UL +#define UVH_BAU_DATA_CONFIG_APIC_ID_SHFT 32 +#define UVH_BAU_DATA_CONFIG_APIC_ID_MASK 0xffffffff00000000UL + +union uvh_bau_data_config_u { + unsigned long v; + struct uvh_bau_data_config_s { + unsigned long vector_ : 8; /* RW */ + unsigned long dm : 3; /* RW */ + unsigned long destmode : 1; /* RW */ + unsigned long status : 1; /* RO */ + unsigned long p : 1; /* RO */ + unsigned long rsvd_14 : 1; /* */ + unsigned long t : 1; /* RO */ + unsigned long m : 1; /* RW */ + unsigned long rsvd_17_31: 15; /* */ + unsigned long apic_id : 32; /* RW */ + } s; +}; + +/* ========================================================================= */ +/* UVH_EVENT_OCCURRED0 */ +/* ========================================================================= */ +#define UVH_EVENT_OCCURRED0 0x70000UL +#define UVH_EVENT_OCCURRED0_32 0x005e8 + +#define UVH_EVENT_OCCURRED0_LB_HCERR_SHFT 0 +#define UVH_EVENT_OCCURRED0_LB_HCERR_MASK 0x0000000000000001UL +#define UVH_EVENT_OCCURRED0_GR0_HCERR_SHFT 1 +#define UVH_EVENT_OCCURRED0_GR0_HCERR_MASK 0x0000000000000002UL +#define UVH_EVENT_OCCURRED0_GR1_HCERR_SHFT 2 +#define UVH_EVENT_OCCURRED0_GR1_HCERR_MASK 0x0000000000000004UL +#define UVH_EVENT_OCCURRED0_LH_HCERR_SHFT 3 +#define UVH_EVENT_OCCURRED0_LH_HCERR_MASK 0x0000000000000008UL +#define UVH_EVENT_OCCURRED0_RH_HCERR_SHFT 4 +#define UVH_EVENT_OCCURRED0_RH_HCERR_MASK 0x0000000000000010UL +#define UVH_EVENT_OCCURRED0_XN_HCERR_SHFT 5 +#define UVH_EVENT_OCCURRED0_XN_HCERR_MASK 0x0000000000000020UL +#define UVH_EVENT_OCCURRED0_SI_HCERR_SHFT 6 +#define UVH_EVENT_OCCURRED0_SI_HCERR_MASK 0x0000000000000040UL +#define UVH_EVENT_OCCURRED0_LB_AOERR0_SHFT 7 +#define UVH_EVENT_OCCURRED0_LB_AOERR0_MASK 0x0000000000000080UL +#define UVH_EVENT_OCCURRED0_GR0_AOERR0_SHFT 8 +#define UVH_EVENT_OCCURRED0_GR0_AOERR0_MASK 0x0000000000000100UL +#define UVH_EVENT_OCCURRED0_GR1_AOERR0_SHFT 9 +#define UVH_EVENT_OCCURRED0_GR1_AOERR0_MASK 0x0000000000000200UL +#define UVH_EVENT_OCCURRED0_LH_AOERR0_SHFT 10 +#define UVH_EVENT_OCCURRED0_LH_AOERR0_MASK 0x0000000000000400UL +#define UVH_EVENT_OCCURRED0_RH_AOERR0_SHFT 11 +#define UVH_EVENT_OCCURRED0_RH_AOERR0_MASK 0x0000000000000800UL +#define UVH_EVENT_OCCURRED0_XN_AOERR0_SHFT 12 +#define UVH_EVENT_OCCURRED0_XN_AOERR0_MASK 0x0000000000001000UL +#define UVH_EVENT_OCCURRED0_SI_AOERR0_SHFT 13 +#define UVH_EVENT_OCCURRED0_SI_AOERR0_MASK 0x0000000000002000UL +#define UVH_EVENT_OCCURRED0_LB_AOERR1_SHFT 14 +#define UVH_EVENT_OCCURRED0_LB_AOERR1_MASK 0x0000000000004000UL +#define UVH_EVENT_OCCURRED0_GR0_AOERR1_SHFT 15 +#define UVH_EVENT_OCCURRED0_GR0_AOERR1_MASK 0x0000000000008000UL +#define UVH_EVENT_OCCURRED0_GR1_AOERR1_SHFT 16 +#define UVH_EVENT_OCCURRED0_GR1_AOERR1_MASK 0x0000000000010000UL +#define UVH_EVENT_OCCURRED0_LH_AOERR1_SHFT 17 +#define UVH_EVENT_OCCURRED0_LH_AOERR1_MASK 0x0000000000020000UL +#define UVH_EVENT_OCCURRED0_RH_AOERR1_SHFT 18 +#define UVH_EVENT_OCCURRED0_RH_AOERR1_MASK 0x0000000000040000UL +#define UVH_EVENT_OCCURRED0_XN_AOERR1_SHFT 19 +#define UVH_EVENT_OCCURRED0_XN_AOERR1_MASK 0x0000000000080000UL +#define UVH_EVENT_OCCURRED0_SI_AOERR1_SHFT 20 +#define UVH_EVENT_OCCURRED0_SI_AOERR1_MASK 0x0000000000100000UL +#define UVH_EVENT_OCCURRED0_RH_VPI_INT_SHFT 21 +#define UVH_EVENT_OCCURRED0_RH_VPI_INT_MASK 0x0000000000200000UL +#define UVH_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_SHFT 22 +#define UVH_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_MASK 0x0000000000400000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_0_SHFT 23 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_0_MASK 0x0000000000800000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_1_SHFT 24 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_1_MASK 0x0000000001000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_2_SHFT 25 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_2_MASK 0x0000000002000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_3_SHFT 26 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_3_MASK 0x0000000004000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_4_SHFT 27 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_4_MASK 0x0000000008000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_5_SHFT 28 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_5_MASK 0x0000000010000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_6_SHFT 29 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_6_MASK 0x0000000020000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_7_SHFT 30 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_7_MASK 0x0000000040000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_8_SHFT 31 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_8_MASK 0x0000000080000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_9_SHFT 32 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_9_MASK 0x0000000100000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_10_SHFT 33 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_10_MASK 0x0000000200000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_11_SHFT 34 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_11_MASK 0x0000000400000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_12_SHFT 35 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_12_MASK 0x0000000800000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_13_SHFT 36 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_13_MASK 0x0000001000000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_14_SHFT 37 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_14_MASK 0x0000002000000000UL +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_15_SHFT 38 +#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_15_MASK 0x0000004000000000UL +#define UVH_EVENT_OCCURRED0_L1_NMI_INT_SHFT 39 +#define UVH_EVENT_OCCURRED0_L1_NMI_INT_MASK 0x0000008000000000UL +#define UVH_EVENT_OCCURRED0_STOP_CLOCK_SHFT 40 +#define UVH_EVENT_OCCURRED0_STOP_CLOCK_MASK 0x0000010000000000UL +#define UVH_EVENT_OCCURRED0_ASIC_TO_L1_SHFT 41 +#define UVH_EVENT_OCCURRED0_ASIC_TO_L1_MASK 0x0000020000000000UL +#define UVH_EVENT_OCCURRED0_L1_TO_ASIC_SHFT 42 +#define UVH_EVENT_OCCURRED0_L1_TO_ASIC_MASK 0x0000040000000000UL +#define UVH_EVENT_OCCURRED0_LTC_INT_SHFT 43 +#define UVH_EVENT_OCCURRED0_LTC_INT_MASK 0x0000080000000000UL +#define UVH_EVENT_OCCURRED0_LA_SEQ_TRIGGER_SHFT 44 +#define UVH_EVENT_OCCURRED0_LA_SEQ_TRIGGER_MASK 0x0000100000000000UL +#define UVH_EVENT_OCCURRED0_IPI_INT_SHFT 45 +#define UVH_EVENT_OCCURRED0_IPI_INT_MASK 0x0000200000000000UL +#define UVH_EVENT_OCCURRED0_EXTIO_INT0_SHFT 46 +#define UVH_EVENT_OCCURRED0_EXTIO_INT0_MASK 0x0000400000000000UL +#define UVH_EVENT_OCCURRED0_EXTIO_INT1_SHFT 47 +#define UVH_EVENT_OCCURRED0_EXTIO_INT1_MASK 0x0000800000000000UL +#define UVH_EVENT_OCCURRED0_EXTIO_INT2_SHFT 48 +#define UVH_EVENT_OCCURRED0_EXTIO_INT2_MASK 0x0001000000000000UL +#define UVH_EVENT_OCCURRED0_EXTIO_INT3_SHFT 49 +#define UVH_EVENT_OCCURRED0_EXTIO_INT3_MASK 0x0002000000000000UL +#define UVH_EVENT_OCCURRED0_PROFILE_INT_SHFT 50 +#define UVH_EVENT_OCCURRED0_PROFILE_INT_MASK 0x0004000000000000UL +#define UVH_EVENT_OCCURRED0_RTC0_SHFT 51 +#define UVH_EVENT_OCCURRED0_RTC0_MASK 0x0008000000000000UL +#define UVH_EVENT_OCCURRED0_RTC1_SHFT 52 +#define UVH_EVENT_OCCURRED0_RTC1_MASK 0x0010000000000000UL +#define UVH_EVENT_OCCURRED0_RTC2_SHFT 53 +#define UVH_EVENT_OCCURRED0_RTC2_MASK 0x0020000000000000UL +#define UVH_EVENT_OCCURRED0_RTC3_SHFT 54 +#define UVH_EVENT_OCCURRED0_RTC3_MASK 0x0040000000000000UL +#define UVH_EVENT_OCCURRED0_BAU_DATA_SHFT 55 +#define UVH_EVENT_OCCURRED0_BAU_DATA_MASK 0x0080000000000000UL +#define UVH_EVENT_OCCURRED0_POWER_MANAGEMENT_REQ_SHFT 56 +#define UVH_EVENT_OCCURRED0_POWER_MANAGEMENT_REQ_MASK 0x0100000000000000UL +union uvh_event_occurred0_u { + unsigned long v; + struct uvh_event_occurred0_s { + unsigned long lb_hcerr : 1; /* RW, W1C */ + unsigned long gr0_hcerr : 1; /* RW, W1C */ + unsigned long gr1_hcerr : 1; /* RW, W1C */ + unsigned long lh_hcerr : 1; /* RW, W1C */ + unsigned long rh_hcerr : 1; /* RW, W1C */ + unsigned long xn_hcerr : 1; /* RW, W1C */ + unsigned long si_hcerr : 1; /* RW, W1C */ + unsigned long lb_aoerr0 : 1; /* RW, W1C */ + unsigned long gr0_aoerr0 : 1; /* RW, W1C */ + unsigned long gr1_aoerr0 : 1; /* RW, W1C */ + unsigned long lh_aoerr0 : 1; /* RW, W1C */ + unsigned long rh_aoerr0 : 1; /* RW, W1C */ + unsigned long xn_aoerr0 : 1; /* RW, W1C */ + unsigned long si_aoerr0 : 1; /* RW, W1C */ + unsigned long lb_aoerr1 : 1; /* RW, W1C */ + unsigned long gr0_aoerr1 : 1; /* RW, W1C */ + unsigned long gr1_aoerr1 : 1; /* RW, W1C */ + unsigned long lh_aoerr1 : 1; /* RW, W1C */ + unsigned long rh_aoerr1 : 1; /* RW, W1C */ + unsigned long xn_aoerr1 : 1; /* RW, W1C */ + unsigned long si_aoerr1 : 1; /* RW, W1C */ + unsigned long rh_vpi_int : 1; /* RW, W1C */ + unsigned long system_shutdown_int : 1; /* RW, W1C */ + unsigned long lb_irq_int_0 : 1; /* RW, W1C */ + unsigned long lb_irq_int_1 : 1; /* RW, W1C */ + unsigned long lb_irq_int_2 : 1; /* RW, W1C */ + unsigned long lb_irq_int_3 : 1; /* RW, W1C */ + unsigned long lb_irq_int_4 : 1; /* RW, W1C */ + unsigned long lb_irq_int_5 : 1; /* RW, W1C */ + unsigned long lb_irq_int_6 : 1; /* RW, W1C */ + unsigned long lb_irq_int_7 : 1; /* RW, W1C */ + unsigned long lb_irq_int_8 : 1; /* RW, W1C */ + unsigned long lb_irq_int_9 : 1; /* RW, W1C */ + unsigned long lb_irq_int_10 : 1; /* RW, W1C */ + unsigned long lb_irq_int_11 : 1; /* RW, W1C */ + unsigned long lb_irq_int_12 : 1; /* RW, W1C */ + unsigned long lb_irq_int_13 : 1; /* RW, W1C */ + unsigned long lb_irq_int_14 : 1; /* RW, W1C */ + unsigned long lb_irq_int_15 : 1; /* RW, W1C */ + unsigned long l1_nmi_int : 1; /* RW, W1C */ + unsigned long stop_clock : 1; /* RW, W1C */ + unsigned long asic_to_l1 : 1; /* RW, W1C */ + unsigned long l1_to_asic : 1; /* RW, W1C */ + unsigned long ltc_int : 1; /* RW, W1C */ + unsigned long la_seq_trigger : 1; /* RW, W1C */ + unsigned long ipi_int : 1; /* RW, W1C */ + unsigned long extio_int0 : 1; /* RW, W1C */ + unsigned long extio_int1 : 1; /* RW, W1C */ + unsigned long extio_int2 : 1; /* RW, W1C */ + unsigned long extio_int3 : 1; /* RW, W1C */ + unsigned long profile_int : 1; /* RW, W1C */ + unsigned long rtc0 : 1; /* RW, W1C */ + unsigned long rtc1 : 1; /* RW, W1C */ + unsigned long rtc2 : 1; /* RW, W1C */ + unsigned long rtc3 : 1; /* RW, W1C */ + unsigned long bau_data : 1; /* RW, W1C */ + unsigned long power_management_req : 1; /* RW, W1C */ + unsigned long rsvd_57_63 : 7; /* */ + } s; +}; + +/* ========================================================================= */ +/* UVH_EVENT_OCCURRED0_ALIAS */ +/* ========================================================================= */ +#define UVH_EVENT_OCCURRED0_ALIAS 0x0000000000070008UL +#define UVH_EVENT_OCCURRED0_ALIAS_32 0x005f0 + +/* ========================================================================= */ +/* UVH_INT_CMPB */ +/* ========================================================================= */ +#define UVH_INT_CMPB 0x22080UL + +#define UVH_INT_CMPB_REAL_TIME_CMPB_SHFT 0 +#define UVH_INT_CMPB_REAL_TIME_CMPB_MASK 0x00ffffffffffffffUL + +union uvh_int_cmpb_u { + unsigned long v; + struct uvh_int_cmpb_s { + unsigned long real_time_cmpb : 56; /* RW */ + unsigned long rsvd_56_63 : 8; /* */ + } s; +}; + +/* ========================================================================= */ +/* UVH_INT_CMPC */ +/* ========================================================================= */ +#define UVH_INT_CMPC 0x22100UL + +#define UVH_INT_CMPC_REAL_TIME_CMPC_SHFT 0 +#define UVH_INT_CMPC_REAL_TIME_CMPC_MASK 0x00ffffffffffffffUL + +union uvh_int_cmpc_u { + unsigned long v; + struct uvh_int_cmpc_s { + unsigned long real_time_cmpc : 56; /* RW */ + unsigned long rsvd_56_63 : 8; /* */ + } s; +}; - #define UV_MMR_ENABLE (1UL << 63) +/* ========================================================================= */ +/* UVH_INT_CMPD */ +/* ========================================================================= */ +#define UVH_INT_CMPD 0x22180UL + +#define UVH_INT_CMPD_REAL_TIME_CMPD_SHFT 0 +#define UVH_INT_CMPD_REAL_TIME_CMPD_MASK 0x00ffffffffffffffUL + +union uvh_int_cmpd_u { + unsigned long v; + struct uvh_int_cmpd_s { + unsigned long real_time_cmpd : 56; /* RW */ + unsigned long rsvd_56_63 : 8; /* */ + } s; +}; /* ========================================================================= */ /* UVH_NODE_ID */ @@ -111,8 +384,8 @@ union uvh_rh_gam_alias210_redirect_config_2_mmr_u { #define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_SHFT 28 #define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003ffff0000000UL -#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_SHFT 46 -#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_MASK 0x0000400000000000UL +#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_SHFT 48 +#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_MASK 0x0001000000000000UL #define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_N_GRU_SHFT 52 #define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_N_GRU_MASK 0x00f0000000000000UL #define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63 @@ -123,8 +396,9 @@ union uvh_rh_gam_gru_overlay_config_mmr_u { struct uvh_rh_gam_gru_overlay_config_mmr_s { unsigned long rsvd_0_27: 28; /* */ unsigned long base : 18; /* RW */ + unsigned long rsvd_46_47: 2; /* */ unsigned long gr4 : 1; /* RW */ - unsigned long rsvd_47_51: 5; /* */ + unsigned long rsvd_49_51: 3; /* */ unsigned long n_gru : 4; /* RW */ unsigned long rsvd_56_62: 7; /* */ unsigned long enable : 1; /* RW */ @@ -157,7 +431,7 @@ union uvh_rh_gam_mmr_overlay_config_mmr_u { /* ========================================================================= */ /* UVH_RTC */ /* ========================================================================= */ -#define UVH_RTC 0x28000UL +#define UVH_RTC 0x340000UL #define UVH_RTC_REAL_TIME_CLOCK_SHFT 0 #define UVH_RTC_REAL_TIME_CLOCK_MASK 0x00ffffffffffffffUL @@ -170,6 +444,139 @@ union uvh_rtc_u { } s; }; +/* ========================================================================= */ +/* UVH_RTC1_INT_CONFIG */ +/* ========================================================================= */ +#define UVH_RTC1_INT_CONFIG 0x615c0UL + +#define UVH_RTC1_INT_CONFIG_VECTOR_SHFT 0 +#define UVH_RTC1_INT_CONFIG_VECTOR_MASK 0x00000000000000ffUL +#define UVH_RTC1_INT_CONFIG_DM_SHFT 8 +#define UVH_RTC1_INT_CONFIG_DM_MASK 0x0000000000000700UL +#define UVH_RTC1_INT_CONFIG_DESTMODE_SHFT 11 +#define UVH_RTC1_INT_CONFIG_DESTMODE_MASK 0x0000000000000800UL +#define UVH_RTC1_INT_CONFIG_STATUS_SHFT 12 +#define UVH_RTC1_INT_CONFIG_STATUS_MASK 0x0000000000001000UL +#define UVH_RTC1_INT_CONFIG_P_SHFT 13 +#define UVH_RTC1_INT_CONFIG_P_MASK 0x0000000000002000UL +#define UVH_RTC1_INT_CONFIG_T_SHFT 15 +#define UVH_RTC1_INT_CONFIG_T_MASK 0x0000000000008000UL +#define UVH_RTC1_INT_CONFIG_M_SHFT 16 +#define UVH_RTC1_INT_CONFIG_M_MASK 0x0000000000010000UL +#define UVH_RTC1_INT_CONFIG_APIC_ID_SHFT 32 +#define UVH_RTC1_INT_CONFIG_APIC_ID_MASK 0xffffffff00000000UL + +union uvh_rtc1_int_config_u { + unsigned long v; + struct uvh_rtc1_int_config_s { + unsigned long vector_ : 8; /* RW */ + unsigned long dm : 3; /* RW */ + unsigned long destmode : 1; /* RW */ + unsigned long status : 1; /* RO */ + unsigned long p : 1; /* RO */ + unsigned long rsvd_14 : 1; /* */ + unsigned long t : 1; /* RO */ + unsigned long m : 1; /* RW */ + unsigned long rsvd_17_31: 15; /* */ + unsigned long apic_id : 32; /* RW */ + } s; +}; + +/* ========================================================================= */ +/* UVH_RTC2_INT_CONFIG */ +/* ========================================================================= */ +#define UVH_RTC2_INT_CONFIG 0x61600UL + +#define UVH_RTC2_INT_CONFIG_VECTOR_SHFT 0 +#define UVH_RTC2_INT_CONFIG_VECTOR_MASK 0x00000000000000ffUL +#define UVH_RTC2_INT_CONFIG_DM_SHFT 8 +#define UVH_RTC2_INT_CONFIG_DM_MASK 0x0000000000000700UL +#define UVH_RTC2_INT_CONFIG_DESTMODE_SHFT 11 +#define UVH_RTC2_INT_CONFIG_DESTMODE_MASK 0x0000000000000800UL +#define UVH_RTC2_INT_CONFIG_STATUS_SHFT 12 +#define UVH_RTC2_INT_CONFIG_STATUS_MASK 0x0000000000001000UL +#define UVH_RTC2_INT_CONFIG_P_SHFT 13 +#define UVH_RTC2_INT_CONFIG_P_MASK 0x0000000000002000UL +#define UVH_RTC2_INT_CONFIG_T_SHFT 15 +#define UVH_RTC2_INT_CONFIG_T_MASK 0x0000000000008000UL +#define UVH_RTC2_INT_CONFIG_M_SHFT 16 +#define UVH_RTC2_INT_CONFIG_M_MASK 0x0000000000010000UL +#define UVH_RTC2_INT_CONFIG_APIC_ID_SHFT 32 +#define UVH_RTC2_INT_CONFIG_APIC_ID_MASK 0xffffffff00000000UL + +union uvh_rtc2_int_config_u { + unsigned long v; + struct uvh_rtc2_int_config_s { + unsigned long vector_ : 8; /* RW */ + unsigned long dm : 3; /* RW */ + unsigned long destmode : 1; /* RW */ + unsigned long status : 1; /* RO */ + unsigned long p : 1; /* RO */ + unsigned long rsvd_14 : 1; /* */ + unsigned long t : 1; /* RO */ + unsigned long m : 1; /* RW */ + unsigned long rsvd_17_31: 15; /* */ + unsigned long apic_id : 32; /* RW */ + } s; +}; + +/* ========================================================================= */ +/* UVH_RTC3_INT_CONFIG */ +/* ========================================================================= */ +#define UVH_RTC3_INT_CONFIG 0x61640UL + +#define UVH_RTC3_INT_CONFIG_VECTOR_SHFT 0 +#define UVH_RTC3_INT_CONFIG_VECTOR_MASK 0x00000000000000ffUL +#define UVH_RTC3_INT_CONFIG_DM_SHFT 8 +#define UVH_RTC3_INT_CONFIG_DM_MASK 0x0000000000000700UL +#define UVH_RTC3_INT_CONFIG_DESTMODE_SHFT 11 +#define UVH_RTC3_INT_CONFIG_DESTMODE_MASK 0x0000000000000800UL +#define UVH_RTC3_INT_CONFIG_STATUS_SHFT 12 +#define UVH_RTC3_INT_CONFIG_STATUS_MASK 0x0000000000001000UL +#define UVH_RTC3_INT_CONFIG_P_SHFT 13 +#define UVH_RTC3_INT_CONFIG_P_MASK 0x0000000000002000UL +#define UVH_RTC3_INT_CONFIG_T_SHFT 15 +#define UVH_RTC3_INT_CONFIG_T_MASK 0x0000000000008000UL +#define UVH_RTC3_INT_CONFIG_M_SHFT 16 +#define UVH_RTC3_INT_CONFIG_M_MASK 0x0000000000010000UL +#define UVH_RTC3_INT_CONFIG_APIC_ID_SHFT 32 +#define UVH_RTC3_INT_CONFIG_APIC_ID_MASK 0xffffffff00000000UL + +union uvh_rtc3_int_config_u { + unsigned long v; + struct uvh_rtc3_int_config_s { + unsigned long vector_ : 8; /* RW */ + unsigned long dm : 3; /* RW */ + unsigned long destmode : 1; /* RW */ + unsigned long status : 1; /* RO */ + unsigned long p : 1; /* RO */ + unsigned long rsvd_14 : 1; /* */ + unsigned long t : 1; /* RO */ + unsigned long m : 1; /* RW */ + unsigned long rsvd_17_31: 15; /* */ + unsigned long apic_id : 32; /* RW */ + } s; +}; + +/* ========================================================================= */ +/* UVH_RTC_INC_RATIO */ +/* ========================================================================= */ +#define UVH_RTC_INC_RATIO 0x350000UL + +#define UVH_RTC_INC_RATIO_FRACTION_SHFT 0 +#define UVH_RTC_INC_RATIO_FRACTION_MASK 0x00000000000fffffUL +#define UVH_RTC_INC_RATIO_RATIO_SHFT 20 +#define UVH_RTC_INC_RATIO_RATIO_MASK 0x0000000000700000UL + +union uvh_rtc_inc_ratio_u { + unsigned long v; + struct uvh_rtc_inc_ratio_s { + unsigned long fraction : 20; /* RW */ + unsigned long ratio : 3; /* RW */ + unsigned long rsvd_23_63: 41; /* */ + } s; +}; + /* ========================================================================= */ /* UVH_SI_ADDR_MAP_CONFIG */ /* ========================================================================= */ -- cgit v1.2.3 From 4fdf08b5bf8d449cc9897395895157c6ff8ddc41 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Thu, 17 Jul 2008 11:29:24 -0700 Subject: x86: unify and correct the GDT_ENTRY() macro Merge the GDT_ENTRY() macro between arch/x86/boot/pm.c and arch/x86/kernel/acpi/sleep.c and put the new one in . While we're at it, correct the bitmasks for the limit and flags. The new version relies on using ULL constants in order to cause type promotion rather than explicit casts; this avoids having to include in . Signed-off-by: H. Peter Anvin --- arch/x86/boot/pm.c | 6 ------ arch/x86/kernel/acpi/sleep.c | 10 +--------- include/asm-x86/segment.h | 9 +++++++++ 3 files changed, 10 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/arch/x86/boot/pm.c b/arch/x86/boot/pm.c index 328956fdb59e..85a1cd8a8ff8 100644 --- a/arch/x86/boot/pm.c +++ b/arch/x86/boot/pm.c @@ -98,12 +98,6 @@ static void reset_coprocessor(void) /* * Set up the GDT */ -#define GDT_ENTRY(flags, base, limit) \ - (((u64)(base & 0xff000000) << 32) | \ - ((u64)flags << 40) | \ - ((u64)(limit & 0x00ff0000) << 32) | \ - ((u64)(base & 0x00ffffff) << 16) | \ - ((u64)(limit & 0x0000ffff))) struct gdt_ptr { u16 len; diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 868de3d5c39d..a3ddad18aaa3 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -9,6 +9,7 @@ #include #include #include +#include #include "realmode/wakeup.h" #include "sleep.h" @@ -23,15 +24,6 @@ static unsigned long acpi_realmode; static char temp_stack[10240]; #endif -/* XXX: this macro should move to asm-x86/segment.h and be shared with the - boot code... */ -#define GDT_ENTRY(flags, base, limit) \ - (((u64)(base & 0xff000000) << 32) | \ - ((u64)flags << 40) | \ - ((u64)(limit & 0x00ff0000) << 32) | \ - ((u64)(base & 0x00ffffff) << 16) | \ - ((u64)(limit & 0x0000ffff))) - /** * acpi_save_state_mem - save kernel state * diff --git a/include/asm-x86/segment.h b/include/asm-x86/segment.h index dfc8601c0892..646452ea9ea3 100644 --- a/include/asm-x86/segment.h +++ b/include/asm-x86/segment.h @@ -1,6 +1,15 @@ #ifndef _ASM_X86_SEGMENT_H_ #define _ASM_X86_SEGMENT_H_ +/* Constructor for a conventional segment GDT (or LDT) entry */ +/* This is a macro so it can be used in initializers */ +#define GDT_ENTRY(flags, base, limit) \ + ((((base) & 0xff000000ULL) << (56-24)) | \ + (((flags) & 0x0000f0ffULL) << 40) | \ + (((limit) & 0x000f0000ULL) << (48-16)) | \ + (((base) & 0x00ffffffULL) << 16) | \ + (((limit) & 0x0000ffffULL))) + /* Simple and small GDT entries for booting only */ #define GDT_ENTRY_BOOT_CS 2 -- cgit v1.2.3 From d2c52b7983b95bb3fc2a784e479f832f142d4523 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 17 Jul 2008 17:59:55 -0700 Subject: async_tx: export async_tx_quiesce Replace open coded "wait and acknowledge" instances with async_tx_quiesce. Signed-off-by: Dan Williams --- crypto/async_tx/async_memcpy.c | 10 +--------- crypto/async_tx/async_memset.c | 10 +--------- crypto/async_tx/async_tx.c | 29 ++++++++++++++++++++--------- crypto/async_tx/async_xor.c | 37 ++----------------------------------- include/linux/async_tx.h | 2 ++ 5 files changed, 26 insertions(+), 62 deletions(-) (limited to 'include') diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index a5eda80e8427..06a7f4be9736 100644 --- a/crypto/async_tx/async_memcpy.c +++ b/crypto/async_tx/async_memcpy.c @@ -73,15 +73,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, pr_debug("%s: (sync) len: %zu\n", __func__, len); /* wait for any prerequisite operations */ - if (depend_tx) { - /* if ack is already set then we cannot be sure - * we are referring to the correct operation - */ - BUG_ON(async_tx_test_ack(depend_tx)); - if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR) - panic("%s: DMA_ERROR waiting for depend_tx\n", - __func__); - } + async_tx_quiesce(&depend_tx); dest_buf = kmap_atomic(dest, KM_USER0) + dest_offset; src_buf = kmap_atomic(src, KM_USER1) + src_offset; diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c index 27a97dc90a7e..d48ed22ed1c3 100644 --- a/crypto/async_tx/async_memset.c +++ b/crypto/async_tx/async_memset.c @@ -72,15 +72,7 @@ async_memset(struct page *dest, int val, unsigned int offset, dest_buf = (void *) (((char *) page_address(dest)) + offset); /* wait for any prerequisite operations */ - if (depend_tx) { - /* if ack is already set then we cannot be sure - * we are referring to the correct operation - */ - BUG_ON(async_tx_test_ack(depend_tx)); - if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR) - panic("%s: DMA_ERROR waiting for depend_tx\n", - __func__); - } + async_tx_quiesce(&depend_tx); memset(dest_buf, val, len); diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c index 9325c61208a0..78a61e7f631a 100644 --- a/crypto/async_tx/async_tx.c +++ b/crypto/async_tx/async_tx.c @@ -607,15 +607,7 @@ async_trigger_callback(enum async_tx_flags flags, pr_debug("%s: (sync)\n", __func__); /* wait for any prerequisite operations */ - if (depend_tx) { - /* if ack is already set then we cannot be sure - * we are referring to the correct operation - */ - BUG_ON(async_tx_test_ack(depend_tx)); - if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR) - panic("%s: DMA_ERROR waiting for depend_tx\n", - __func__); - } + async_tx_quiesce(&depend_tx); async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); } @@ -624,6 +616,25 @@ async_trigger_callback(enum async_tx_flags flags, } EXPORT_SYMBOL_GPL(async_trigger_callback); +/** + * async_tx_quiesce - ensure tx is complete and freeable upon return + * @tx - transaction to quiesce + */ +void async_tx_quiesce(struct dma_async_tx_descriptor **tx) +{ + if (*tx) { + /* if ack is already set then we cannot be sure + * we are referring to the correct operation + */ + BUG_ON(async_tx_test_ack(*tx)); + if (dma_wait_for_async_tx(*tx) == DMA_ERROR) + panic("DMA_ERROR waiting for transaction\n"); + async_tx_ack(*tx); + *tx = NULL; + } +} +EXPORT_SYMBOL_GPL(async_tx_quiesce); + module_init(async_tx_init); module_exit(async_tx_exit); diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c index 19d16e452bcc..689ecce73ee1 100644 --- a/crypto/async_tx/async_xor.c +++ b/crypto/async_tx/async_xor.c @@ -30,24 +30,6 @@ #include #include -/** - * async_tx_quiesce - ensure tx is complete and freeable upon return - * @tx - transaction to quiesce - */ -static void async_tx_quiesce(struct dma_async_tx_descriptor **tx) -{ - if (*tx) { - /* if ack is already set then we cannot be sure - * we are referring to the correct operation - */ - BUG_ON(async_tx_test_ack(*tx)); - if (dma_wait_for_async_tx(*tx) == DMA_ERROR) - panic("DMA_ERROR waiting for transaction\n"); - async_tx_ack(*tx); - *tx = NULL; - } -} - /* do_async_xor - dma map the pages and perform the xor with an engine. * This routine is marked __always_inline so it can be compiled away * when CONFIG_DMA_ENGINE=n @@ -219,15 +201,7 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset, } /* wait for any prerequisite operations */ - if (depend_tx) { - /* if ack is already set then we cannot be sure - * we are referring to the correct operation - */ - BUG_ON(async_tx_test_ack(depend_tx)); - if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR) - panic("%s: DMA_ERROR waiting for depend_tx\n", - __func__); - } + async_tx_quiesce(&depend_tx); do_sync_xor(dest, src_list, offset, src_cnt, len, flags, depend_tx, cb_fn, cb_param); @@ -309,17 +283,10 @@ async_xor_zero_sum(struct page *dest, struct page **src_list, tx = async_xor(dest, src_list, offset, src_cnt, len, xor_flags, depend_tx, NULL, NULL); - if (tx) { - if (dma_wait_for_async_tx(tx) == DMA_ERROR) - panic("%s: DMA_ERROR waiting for tx\n", - __func__); - async_tx_ack(tx); - } + async_tx_quiesce(&tx); *result = page_is_zero(dest, offset, len) ? 0 : 1; - tx = NULL; - async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); } diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index eb640f0acfac..9f0e7bd5bdc9 100644 --- a/include/linux/async_tx.h +++ b/include/linux/async_tx.h @@ -152,4 +152,6 @@ struct dma_async_tx_descriptor * async_trigger_callback(enum async_tx_flags flags, struct dma_async_tx_descriptor *depend_tx, dma_async_tx_callback cb_fn, void *cb_fn_param); + +void async_tx_quiesce(struct dma_async_tx_descriptor **tx); #endif /* _ASYNC_TX_H_ */ -- cgit v1.2.3 From 3dce01713723bbcc92562bd4488e8b840a4f786c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 17 Jul 2008 17:59:55 -0700 Subject: async_tx: remove depend_tx from async_tx_sync_epilog All callers of async_tx_sync_epilog have called async_tx_quiesce on the depend_tx, so async_tx_sync_epilog need only call the callback to complete the operation. Signed-off-by: Dan Williams --- crypto/async_tx/async_memcpy.c | 2 +- crypto/async_tx/async_memset.c | 2 +- crypto/async_tx/async_tx.c | 2 +- crypto/async_tx/async_xor.c | 7 +++---- include/linux/async_tx.h | 9 +-------- 5 files changed, 7 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index 06a7f4be9736..ddccfb01c416 100644 --- a/crypto/async_tx/async_memcpy.c +++ b/crypto/async_tx/async_memcpy.c @@ -83,7 +83,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, kunmap_atomic(dest_buf, KM_USER0); kunmap_atomic(src_buf, KM_USER1); - async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); + async_tx_sync_epilog(cb_fn, cb_param); } return tx; diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c index d48ed22ed1c3..5b5eb99bb244 100644 --- a/crypto/async_tx/async_memset.c +++ b/crypto/async_tx/async_memset.c @@ -76,7 +76,7 @@ async_memset(struct page *dest, int val, unsigned int offset, memset(dest_buf, val, len); - async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); + async_tx_sync_epilog(cb_fn, cb_param); } return tx; diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c index 78a61e7f631a..35869a37a6f2 100644 --- a/crypto/async_tx/async_tx.c +++ b/crypto/async_tx/async_tx.c @@ -609,7 +609,7 @@ async_trigger_callback(enum async_tx_flags flags, /* wait for any prerequisite operations */ async_tx_quiesce(&depend_tx); - async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); + async_tx_sync_epilog(cb_fn, cb_param); } return tx; diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c index 689ecce73ee1..65974c6d3d7a 100644 --- a/crypto/async_tx/async_xor.c +++ b/crypto/async_tx/async_xor.c @@ -121,7 +121,6 @@ do_async_xor(struct dma_chan *chan, struct page *dest, struct page **src_list, static void do_sync_xor(struct page *dest, struct page **src_list, unsigned int offset, int src_cnt, size_t len, enum async_tx_flags flags, - struct dma_async_tx_descriptor *depend_tx, dma_async_tx_callback cb_fn, void *cb_param) { int i; @@ -150,7 +149,7 @@ do_sync_xor(struct page *dest, struct page **src_list, unsigned int offset, src_off += xor_src_cnt; } - async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); + async_tx_sync_epilog(cb_fn, cb_param); } /** @@ -204,7 +203,7 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset, async_tx_quiesce(&depend_tx); do_sync_xor(dest, src_list, offset, src_cnt, len, - flags, depend_tx, cb_fn, cb_param); + flags, cb_fn, cb_param); return NULL; } @@ -287,7 +286,7 @@ async_xor_zero_sum(struct page *dest, struct page **src_list, *result = page_is_zero(dest, offset, len) ? 0 : 1; - async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); + async_tx_sync_epilog(cb_fn, cb_param); } return tx; diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index 9f0e7bd5bdc9..0f50d4cc4360 100644 --- a/include/linux/async_tx.h +++ b/include/linux/async_tx.h @@ -101,21 +101,14 @@ async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, /** * async_tx_sync_epilog - actions to take if an operation is run synchronously - * @flags: async_tx flags - * @depend_tx: transaction depends on depend_tx * @cb_fn: function to call when the transaction completes * @cb_fn_param: parameter to pass to the callback routine */ static inline void -async_tx_sync_epilog(unsigned long flags, - struct dma_async_tx_descriptor *depend_tx, - dma_async_tx_callback cb_fn, void *cb_fn_param) +async_tx_sync_epilog(dma_async_tx_callback cb_fn, void *cb_fn_param) { if (cb_fn) cb_fn(cb_fn_param); - - if (depend_tx && (flags & ASYNC_TX_DEP_ACK)) - async_tx_ack(depend_tx); } void -- cgit v1.2.3 From 0839875e0c197ded56bbae820e699f26d6fa2697 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 17 Jul 2008 17:59:56 -0700 Subject: async_tx: make async_tx_test_ack a boolean routine Signed-off-by: Dan Williams --- include/linux/dmaengine.h | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 9b91d341e1fa..adb0b084eb5a 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -375,16 +375,14 @@ dma_cookie_t dma_async_memcpy_pg_to_pg(struct dma_chan *chan, void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx, struct dma_chan *chan); -static inline void -async_tx_ack(struct dma_async_tx_descriptor *tx) +static inline void async_tx_ack(struct dma_async_tx_descriptor *tx) { tx->flags |= DMA_CTRL_ACK; } -static inline int -async_tx_test_ack(struct dma_async_tx_descriptor *tx) +static inline bool async_tx_test_ack(struct dma_async_tx_descriptor *tx) { - return tx->flags & DMA_CTRL_ACK; + return (tx->flags & DMA_CTRL_ACK) == DMA_CTRL_ACK; } #define first_dma_cap(mask) __first_dma_cap(&(mask)) -- cgit v1.2.3 From 2a46fa13d788364c093c4296fe01cae837aa8919 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 17 Jul 2008 17:59:56 -0700 Subject: iop_adma: cleanup iop_chan_xor_slot_count - use a table for iop13xx, trade text for data - shrink the iop3xx to a cache line Signed-off-by: Dan Williams --- include/asm-arm/arch-iop13xx/adma.h | 18 +++++++----------- include/asm-arm/hardware/iop3xx-adma.h | 4 ++-- 2 files changed, 9 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/asm-arm/arch-iop13xx/adma.h b/include/asm-arm/arch-iop13xx/adma.h index 90d14ee564f5..ef4f5da2029f 100644 --- a/include/asm-arm/arch-iop13xx/adma.h +++ b/include/asm-arm/arch-iop13xx/adma.h @@ -198,17 +198,13 @@ iop_chan_memset_slot_count(size_t len, int *slots_per_op) static inline int iop_chan_xor_slot_count(size_t len, int src_cnt, int *slots_per_op) { - int num_slots; - /* slots_to_find = 1 for basic descriptor + 1 per 4 sources above 1 - * (1 source => 8 bytes) (1 slot => 32 bytes) - */ - num_slots = 1 + (((src_cnt - 1) << 3) >> 5); - if (((src_cnt - 1) << 3) & 0x1f) - num_slots++; - - *slots_per_op = num_slots; - - return num_slots; + static const char slot_count_table[] = { 1, 2, 2, 2, + 2, 3, 3, 3, + 3, 4, 4, 4, + 4, 5, 5, 5, + }; + *slots_per_op = slot_count_table[src_cnt - 1]; + return *slots_per_op; } #define ADMA_MAX_BYTE_COUNT (16 * 1024 * 1024) diff --git a/include/asm-arm/hardware/iop3xx-adma.h b/include/asm-arm/hardware/iop3xx-adma.h index a32b86ac62aa..af64676650a2 100644 --- a/include/asm-arm/hardware/iop3xx-adma.h +++ b/include/asm-arm/hardware/iop3xx-adma.h @@ -260,7 +260,7 @@ static inline int iop_chan_memset_slot_count(size_t len, int *slots_per_op) static inline int iop3xx_aau_xor_slot_count(size_t len, int src_cnt, int *slots_per_op) { - static const int slot_count_table[] = { 0, + static const char slot_count_table[] = { 1, 1, 1, 1, /* 01 - 04 */ 2, 2, 2, 2, /* 05 - 08 */ 4, 4, 4, 4, /* 09 - 12 */ @@ -270,7 +270,7 @@ static inline int iop3xx_aau_xor_slot_count(size_t len, int src_cnt, 8, 8, 8, 8, /* 25 - 28 */ 8, 8, 8, 8, /* 29 - 32 */ }; - *slots_per_op = slot_count_table[src_cnt]; + *slots_per_op = slot_count_table[src_cnt - 1]; return *slots_per_op; } -- cgit v1.2.3 From c61c65cdcd1021cfbd7be8685ff1cf4f86c68c44 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 5 Jun 2008 11:40:58 -0700 Subject: sparc/kernel/: possible cleanups This patch contains the following possible cleanups: - make the following needlessly global code static: - apc.c: apc_swift_idle() - ebus.c: ebus_blacklist_irq() - ebus.c: fill_ebus_child() - ebus.c: fill_ebus_device() - entry.S: syscall_is_too_hard - etra: tsetup_sun4c_stackchk - head.S: cputyp - head.S: prom_vector_p - idprom.c: Sun_Machines[] - ioport.c: _sparc_find_resource() - ioport.c: create_proc_read_entry() - irq.c: struct sparc_irq[] - rtrap.S: sun4c_rett_stackchk - setup.c: prom_sync_me() - setup.c: boot_flags - sun4c_irq.c: sun4c_sbint_to_irq() - sun4d_irq.c: sbus_tid[] - sun4d_irq.c: struct sbus_actions - sun4d_irq.c: sun4d_sbint_to_irq() - sun4m_irq.c: sun4m_sbint_to_irq() - sun4m_irq.c: sun4m_get_irqmask() - sun4m_irq.c: sun4m_timers - sun4m_smp.c: smp4m_cross_call() - sun4m_smp.c: smp4m_blackbox_id() - sun4m_smp.c: smp4m_blackbox_current() - time.c: sp_clock_typ - time.c: sbus_time_init() - traps.c: instruction_dump() - wof.S: spwin_sun4c_stackchk - wuf.S: sun4c_fwin_stackchk - #if 0 the following unused code: - process.c: sparc_backtrace_lock - process.c: __show_backtrace() - process.c: show_backtrace() - process.c: smp_show_backtrace_all_cpus() - remove the following unused code: - entry.S: __handle_exception - smp.c: smp_num_cpus - smp.c: smp_activated - smp.c: __cpu_number_map[] - smp.c: __cpu_logical_map[] - smp.c: bitops_spinlock - traps.c: trap_curbuf - traps.c: trapbuf[] - traps.c: linux_smp_still_initting - traps.c: thiscpus_tbr - traps.c: thiscpus_mid Signed-off-by: Adrian Bunk Signed-off-by: David S. Miller --- arch/sparc/kernel/apc.c | 2 +- arch/sparc/kernel/ebus.c | 9 +++++---- arch/sparc/kernel/entry.S | 4 +--- arch/sparc/kernel/etrap.S | 1 - arch/sparc/kernel/head.S | 2 -- arch/sparc/kernel/idprom.c | 2 +- arch/sparc/kernel/ioport.c | 13 +++++++------ arch/sparc/kernel/irq.c | 2 +- arch/sparc/kernel/process.c | 3 ++- arch/sparc/kernel/rtrap.S | 2 -- arch/sparc/kernel/setup.c | 4 ++-- arch/sparc/kernel/smp.c | 7 ------- arch/sparc/kernel/sun4c_irq.c | 3 ++- arch/sparc/kernel/sun4d_irq.c | 7 ++++--- arch/sparc/kernel/sun4m_irq.c | 7 ++++--- arch/sparc/kernel/sun4m_smp.c | 9 +++++---- arch/sparc/kernel/time.c | 4 ++-- arch/sparc/kernel/traps.c | 9 +-------- arch/sparc/kernel/wof.S | 1 - arch/sparc/kernel/wuf.S | 1 - include/asm-sparc/machines.h | 2 -- include/asm-sparc/mostek.h | 2 -- include/asm-sparc/timer.h | 2 -- 23 files changed, 38 insertions(+), 60 deletions(-) (limited to 'include') diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index 6707422c9847..54f7ccd7455f 100644 --- a/arch/sparc/kernel/apc.c +++ b/arch/sparc/kernel/apc.c @@ -56,7 +56,7 @@ __setup("apc=", apc_setup); * CPU idle callback function * See .../arch/sparc/kernel/process.c */ -void apc_swift_idle(void) +static void apc_swift_idle(void) { #ifdef APC_DEBUG_LED set_auxio(0x00, AUXIO_LED); diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c index 92c6fc07e59c..97294232259c 100644 --- a/arch/sparc/kernel/ebus.c +++ b/arch/sparc/kernel/ebus.c @@ -69,7 +69,7 @@ static inline unsigned long ebus_alloc(size_t size) /* */ -int __init ebus_blacklist_irq(const char *name) +static int __init ebus_blacklist_irq(const char *name) { struct ebus_device_irq *dp; @@ -83,8 +83,8 @@ int __init ebus_blacklist_irq(const char *name) return 0; } -void __init fill_ebus_child(struct device_node *dp, - struct linux_ebus_child *dev) +static void __init fill_ebus_child(struct device_node *dp, + struct linux_ebus_child *dev) { const int *regs; const int *irqs; @@ -144,7 +144,8 @@ void __init fill_ebus_child(struct device_node *dp, } } -void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev) +static void __init fill_ebus_device(struct device_node *dp, + struct linux_ebus_device *dev) { const struct linux_prom_registers *regs; struct linux_ebus_child *child; diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S index 4bcfe54f878d..55d3be1b5d81 100644 --- a/arch/sparc/kernel/entry.S +++ b/arch/sparc/kernel/entry.S @@ -1317,7 +1317,6 @@ linux_sparc_syscall: bne linux_fast_syscall /* Just do first insn from SAVE_ALL in the delay slot */ - .globl syscall_is_too_hard syscall_is_too_hard: SAVE_ALL_HEAD rd %wim, %l3 @@ -1544,8 +1543,7 @@ kgdb_trap_low: #endif .align 4 - .globl __handle_exception, flush_patch_exception -__handle_exception: + .globl flush_patch_exception flush_patch_exception: FLUSH_ALL_KERNEL_WINDOWS; ldd [%o0], %o6 diff --git a/arch/sparc/kernel/etrap.S b/arch/sparc/kernel/etrap.S index f37d961d67a6..e806fcdc46db 100644 --- a/arch/sparc/kernel/etrap.S +++ b/arch/sparc/kernel/etrap.S @@ -228,7 +228,6 @@ tsetup_mmu_patchme: */ #define glob_tmp g1 - .globl tsetup_sun4c_stackchk tsetup_sun4c_stackchk: /* Done by caller: andcc %sp, 0x7, %g0 */ bne trap_setup_user_stack_is_bolixed diff --git a/arch/sparc/kernel/head.S b/arch/sparc/kernel/head.S index 3bfd6085a91d..50d9a16af795 100644 --- a/arch/sparc/kernel/head.S +++ b/arch/sparc/kernel/head.S @@ -32,7 +32,6 @@ */ .align 4 - .globl cputyp cputyp: .word 1 @@ -1280,7 +1279,6 @@ halt_me: * gets initialized in c-code so all routines can use it. */ - .globl prom_vector_p prom_vector_p: .word 0 diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c index 7220562cdb34..fc511f3c4c18 100644 --- a/arch/sparc/kernel/idprom.c +++ b/arch/sparc/kernel/idprom.c @@ -24,7 +24,7 @@ static struct idprom idprom_buffer; * of the Sparc CPU and have a meaningful IDPROM machtype value that we * know about. See asm-sparc/machines.h for empirical constants. */ -struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = { +static struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = { /* First, Sun4's */ { "Sun 4/100 Series", (SM_SUN4 | SM_4_110) }, { "Sun 4/200 Series", (SM_SUN4 | SM_4_260) }, diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 7b17522f59bf..487960919f1f 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -49,13 +49,16 @@ #define mmu_inval_dma_area(p, l) /* Anton pulled it out for 2.4.0-xx */ -struct resource *_sparc_find_resource(struct resource *r, unsigned long); +static struct resource *_sparc_find_resource(struct resource *r, + unsigned long); static void __iomem *_sparc_ioremap(struct resource *res, u32 bus, u32 pa, int sz); static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys, unsigned long size, char *name); static void _sparc_free_io(struct resource *res); +static void register_proc_sparc_ioport(void); + /* This points to the next to use virtual memory for DVMA mappings */ static struct resource _sparc_dvma = { .name = "sparc_dvma", .start = DVMA_VADDR, .end = DVMA_END - 1 @@ -539,8 +542,6 @@ void __init sbus_setup_arch_props(struct sbus_bus *sbus, struct device_node *dp) int __init sbus_arch_preinit(void) { - extern void register_proc_sparc_ioport(void); - register_proc_sparc_ioport(); #ifdef CONFIG_SUN4 @@ -853,8 +854,8 @@ _sparc_io_get_info(char *buf, char **start, off_t fpos, int length, int *eof, * XXX Too slow. Can have 8192 DVMA pages on sun4m in the worst case. * This probably warrants some sort of hashing. */ -struct resource * -_sparc_find_resource(struct resource *root, unsigned long hit) +static struct resource *_sparc_find_resource(struct resource *root, + unsigned long hit) { struct resource *tmp; @@ -865,7 +866,7 @@ _sparc_find_resource(struct resource *root, unsigned long hit) return NULL; } -void register_proc_sparc_ioport(void) +static void register_proc_sparc_ioport(void) { #ifdef CONFIG_PROC_FS create_proc_read_entry("io_map",0,NULL,_sparc_io_get_info,&sparc_iomap); diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c index 087390b092b0..93e1d1c65290 100644 --- a/arch/sparc/kernel/irq.c +++ b/arch/sparc/kernel/irq.c @@ -154,7 +154,7 @@ void (*sparc_init_timers)(irq_handler_t ) = struct irqaction static_irqaction[MAX_STATIC_ALLOC]; int static_irq_count; -struct { +static struct { struct irqaction *action; int flags; } sparc_irq[NR_IRQS]; diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c index da48d248cc17..e18a5da025d3 100644 --- a/arch/sparc/kernel/process.c +++ b/arch/sparc/kernel/process.c @@ -177,6 +177,8 @@ void machine_power_off(void) machine_halt(); } +#if 0 + static DEFINE_SPINLOCK(sparc_backtrace_lock); void __show_backtrace(unsigned long fp) @@ -228,7 +230,6 @@ void smp_show_backtrace_all_cpus(void) } #endif -#if 0 void show_stackframe(struct sparc_stackf *sf) { unsigned long size; diff --git a/arch/sparc/kernel/rtrap.S b/arch/sparc/kernel/rtrap.S index ce30082ab266..891f460b7b96 100644 --- a/arch/sparc/kernel/rtrap.S +++ b/arch/sparc/kernel/rtrap.S @@ -224,8 +224,6 @@ ret_trap_user_stack_is_bolixed: b signal_p ld [%curptr + TI_FLAGS], %g2 - - .globl sun4c_rett_stackchk sun4c_rett_stackchk: be 1f and %fp, 0xfff, %g1 ! delay slot diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c index a0ea0bc6f471..9e451b21202e 100644 --- a/arch/sparc/kernel/setup.c +++ b/arch/sparc/kernel/setup.c @@ -67,7 +67,7 @@ struct screen_info screen_info = { extern unsigned long trapbase; /* Pretty sick eh? */ -void prom_sync_me(void) +static void prom_sync_me(void) { unsigned long prom_tbr, flags; @@ -97,7 +97,7 @@ void prom_sync_me(void) return; } -unsigned int boot_flags __initdata = 0; +static unsigned int boot_flags __initdata = 0; #define BOOTME_DEBUG 0x1 /* Exported for mm/init.c:paging_init. */ diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c index 6724ab90f82b..1619ec15c099 100644 --- a/arch/sparc/kernel/smp.c +++ b/arch/sparc/kernel/smp.c @@ -35,13 +35,9 @@ #include "irq.h" -int smp_num_cpus = 1; volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,}; unsigned char boot_cpu_id = 0; unsigned char boot_cpu_id4 = 0; /* boot_cpu_id << 2 */ -int smp_activated = 0; -volatile int __cpu_number_map[NR_CPUS]; -volatile int __cpu_logical_map[NR_CPUS]; cpumask_t cpu_online_map = CPU_MASK_NONE; cpumask_t phys_cpu_present_map = CPU_MASK_NONE; @@ -55,9 +51,6 @@ cpumask_t smp_commenced_mask = CPU_MASK_NONE; * instruction which is much better... */ -/* Used to make bitops atomic */ -unsigned char bitops_spinlock = 0; - void __cpuinit smp_store_cpu_info(int id) { int cpu_node; diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c index c6ac9fc52563..340fc395fe2d 100644 --- a/arch/sparc/kernel/sun4c_irq.c +++ b/arch/sparc/kernel/sun4c_irq.c @@ -68,7 +68,8 @@ unsigned char *interrupt_enable = NULL; static int sun4c_pil_map[] = { 0, 1, 2, 3, 5, 7, 8, 9 }; -unsigned int sun4c_sbint_to_irq(struct sbus_dev *sdev, unsigned int sbint) +static unsigned int sun4c_sbint_to_irq(struct sbus_dev *sdev, + unsigned int sbint) { if (sbint >= sizeof(sun4c_pil_map)) { printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint); diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index 8ac5661cafff..1290b5998f83 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -52,13 +52,13 @@ extern struct irqaction static_irqaction[MAX_STATIC_ALLOC]; extern int static_irq_count; unsigned char cpu_leds[32]; #ifdef CONFIG_SMP -unsigned char sbus_tid[32]; +static unsigned char sbus_tid[32]; #endif static struct irqaction *irq_action[NR_IRQS]; extern spinlock_t irq_action_lock; -struct sbus_action { +static struct sbus_action { struct irqaction *action; /* For SMP this needs to be extended */ } *sbus_actions; @@ -267,7 +267,8 @@ unsigned int sun4d_build_irq(struct sbus_dev *sdev, int irq) return irq; } -unsigned int sun4d_sbint_to_irq(struct sbus_dev *sdev, unsigned int sbint) +static unsigned int sun4d_sbint_to_irq(struct sbus_dev *sdev, + unsigned int sbint) { if (sbint >= sizeof(sbus_to_pil)) { printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint); diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c index b92d6d2d5b04..94e02de960ea 100644 --- a/arch/sparc/kernel/sun4m_irq.c +++ b/arch/sparc/kernel/sun4m_irq.c @@ -154,7 +154,8 @@ static unsigned long irq_mask[] = { static int sun4m_pil_map[] = { 0, 2, 3, 5, 7, 9, 11, 13 }; -unsigned int sun4m_sbint_to_irq(struct sbus_dev *sdev, unsigned int sbint) +static unsigned int sun4m_sbint_to_irq(struct sbus_dev *sdev, + unsigned int sbint) { if (sbint >= sizeof(sun4m_pil_map)) { printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint); @@ -163,7 +164,7 @@ unsigned int sun4m_sbint_to_irq(struct sbus_dev *sdev, unsigned int sbint) return sun4m_pil_map[sbint] | 0x30; } -inline unsigned long sun4m_get_irqmask(unsigned int irq) +static unsigned long sun4m_get_irqmask(unsigned int irq) { unsigned long mask; @@ -281,7 +282,7 @@ static void sun4m_set_udt(int cpu) #define TIMER_IRQ (OBIO_INTR | 10) #define PROFILE_IRQ (OBIO_INTR | 14) -struct sun4m_timer_regs *sun4m_timers; +static struct sun4m_timer_regs *sun4m_timers; unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10); static void sun4m_clear_clock_irq(void) diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index ffb875aacb7e..406ac1abc83a 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -244,8 +244,9 @@ static struct smp_funcall { static DEFINE_SPINLOCK(cross_call_lock); /* Cross calls must be serialized, at least currently. */ -void smp4m_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2, - unsigned long arg3, unsigned long arg4, unsigned long arg5) +static void smp4m_cross_call(smpfunc_t func, unsigned long arg1, + unsigned long arg2, unsigned long arg3, + unsigned long arg4, unsigned long arg5) { register int ncpus = SUN4M_NCPUS; unsigned long flags; @@ -344,7 +345,7 @@ static void __init smp_setup_percpu_timer(void) enable_pil_irq(14); } -void __init smp4m_blackbox_id(unsigned *addr) +static void __init smp4m_blackbox_id(unsigned *addr) { int rd = *addr & 0x3e000000; int rs1 = rd >> 11; @@ -354,7 +355,7 @@ void __init smp4m_blackbox_id(unsigned *addr) addr[2] = 0x80082003 | rd | rs1; /* and reg, 3, reg */ } -void __init smp4m_blackbox_current(unsigned *addr) +static void __init smp4m_blackbox_current(unsigned *addr) { int rd = *addr & 0x3e000000; int rs1 = rd >> 11; diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c index 53caacbb3982..ab3dd0b257d3 100644 --- a/arch/sparc/kernel/time.c +++ b/arch/sparc/kernel/time.c @@ -46,7 +46,7 @@ #include "irq.h" DEFINE_SPINLOCK(rtc_lock); -enum sparc_clock_type sp_clock_typ; +static enum sparc_clock_type sp_clock_typ; DEFINE_SPINLOCK(mostek_lock); void __iomem *mstk48t02_regs = NULL; static struct mostek48t08 __iomem *mstk48t08_regs = NULL; @@ -366,7 +366,7 @@ static int __init clock_init(void) fs_initcall(clock_init); #endif /* !CONFIG_SUN4 */ -void __init sbus_time_init(void) +static void __init sbus_time_init(void) { BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM); diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c index 978e9d85949e..ac8ee6ab1337 100644 --- a/arch/sparc/kernel/traps.c +++ b/arch/sparc/kernel/traps.c @@ -33,9 +33,6 @@ struct trap_trace_entry { unsigned long type; }; -int trap_curbuf = 0; -struct trap_trace_entry trapbuf[1024]; - void syscall_trace_entry(struct pt_regs *regs) { printk("%s[%d]: ", current->comm, task_pid_nr(current)); @@ -72,7 +69,7 @@ void sun4d_nmi(struct pt_regs *regs) prom_halt(); } -void instruction_dump (unsigned long *pc) +static void instruction_dump(unsigned long *pc) { int i; @@ -479,10 +476,6 @@ void do_BUG(const char *file, int line) extern void sparc_cpu_startup(void); -int linux_smp_still_initting; -unsigned int thiscpus_tbr; -int thiscpus_mid; - void trap_init(void) { extern void thread_info_offsets_are_bolixed_pete(void); diff --git a/arch/sparc/kernel/wof.S b/arch/sparc/kernel/wof.S index 4bce38dfe3c5..3bbcd8dc9abf 100644 --- a/arch/sparc/kernel/wof.S +++ b/arch/sparc/kernel/wof.S @@ -306,7 +306,6 @@ spwin_bad_ustack_from_kernel: * As noted above %curptr cannot be touched by this routine at all. */ - .globl spwin_sun4c_stackchk spwin_sun4c_stackchk: /* LOCATION: Window to be saved on the stack */ diff --git a/arch/sparc/kernel/wuf.S b/arch/sparc/kernel/wuf.S index 82e5145b0f77..779ff750603d 100644 --- a/arch/sparc/kernel/wuf.S +++ b/arch/sparc/kernel/wuf.S @@ -243,7 +243,6 @@ fwin_user_finish_up: */ .align 4 - .globl sun4c_fwin_stackchk sun4c_fwin_stackchk: /* LOCATION: Window 'W' */ diff --git a/include/asm-sparc/machines.h b/include/asm-sparc/machines.h index d6c6bf836206..c28c2f248794 100644 --- a/include/asm-sparc/machines.h +++ b/include/asm-sparc/machines.h @@ -17,8 +17,6 @@ struct Sun_Machine_Models { */ #define NUM_SUN_MACHINES 15 -extern struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES]; - /* The machine type in the idprom area looks like this: * * --------------- diff --git a/include/asm-sparc/mostek.h b/include/asm-sparc/mostek.h index 29aad11b8f00..c35c916162fc 100644 --- a/include/asm-sparc/mostek.h +++ b/include/asm-sparc/mostek.h @@ -128,8 +128,6 @@ struct mostek48t08 { struct mostek48t02 regs; /* Here is what we are interested in. */ }; -extern enum sparc_clock_type sp_clock_typ; - #ifdef CONFIG_SUN4 enum sparc_clock_type { MSTK48T02, MSTK48T08, \ INTERSIL, MSTK_INVALID }; diff --git a/include/asm-sparc/timer.h b/include/asm-sparc/timer.h index d909565f9410..361e53898dd7 100644 --- a/include/asm-sparc/timer.h +++ b/include/asm-sparc/timer.h @@ -84,8 +84,6 @@ struct sun4m_timer_regs { volatile unsigned int cfg; /* equals zero at boot time... */ }; -extern struct sun4m_timer_regs *sun4m_timers; - #define SUN4D_PRM_CNT_L 0x80000000 #define SUN4D_PRM_CNT_LVALUE 0x7FFFFC00 -- cgit v1.2.3 From 50215d6511265d46ba14038640b16c5dd7731ff4 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 5 Jun 2008 11:41:51 -0700 Subject: sparc/mm/: possible cleanups This patch contains the following possible cleanups: - make the following needlessly global code static: - fault.c: force_user_fault() - init.c: calc_max_low_pfn() - init.c: pgt_cache_water[] - init.c: map_high_region() - srmmu.c: hwbug_bitmask - srmmu.c: srmmu_swapper_pg_dir - srmmu.c: srmmu_context_table - srmmu.c: is_hypersparc - srmmu.c: srmmu_cache_pagetables - srmmu.c: srmmu_nocache_size - srmmu.c: srmmu_nocache_end - srmmu.c: srmmu_get_nocache() - srmmu.c: srmmu_free_nocache() - srmmu.c: srmmu_early_allocate_ptable_skeleton() - srmmu.c: srmmu_nocache_calcsize() - srmmu.c: srmmu_nocache_init() - srmmu.c: srmmu_alloc_thread_info() - srmmu.c: early_pgtable_allocfail() - srmmu.c: srmmu_early_allocate_ptable_skeleton() - srmmu.c: srmmu_allocate_ptable_skeleton() - srmmu.c: srmmu_inherit_prom_mappings() - sunami.S: tsunami_copy_1page - remove the following unused code: - init.c: struct sparc_aliases Signed-off-by: Adrian Bunk Signed-off-by: David S. Miller --- arch/sparc/mm/fault.c | 2 +- arch/sparc/mm/init.c | 8 +++----- arch/sparc/mm/srmmu.c | 38 +++++++++++++++++++++----------------- arch/sparc/mm/tsunami.S | 1 - include/asm-sparc/mbus.h | 2 -- include/asm-sparc/page.h | 2 -- 6 files changed, 25 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/arch/sparc/mm/fault.c b/arch/sparc/mm/fault.c index 0a3cd8f6cfe4..3604c2e86709 100644 --- a/arch/sparc/mm/fault.c +++ b/arch/sparc/mm/fault.c @@ -451,7 +451,7 @@ asmlinkage void do_sun4c_fault(struct pt_regs *regs, int text_fault, int write, } /* This always deals with user addresses. */ -inline void force_user_fault(unsigned long address, int write) +static void force_user_fault(unsigned long address, int write) { struct vm_area_struct *vma; struct task_struct *tsk = current; diff --git a/arch/sparc/mm/init.c b/arch/sparc/mm/init.c index 7794ecb896e3..8f94a2d62f13 100644 --- a/arch/sparc/mm/init.c +++ b/arch/sparc/mm/init.c @@ -128,7 +128,7 @@ unsigned long calc_highpages(void) return nr; } -unsigned long calc_max_low_pfn(void) +static unsigned long calc_max_low_pfn(void) { int i; unsigned long tmp = pfn_base + (SRMMU_MAXMEM >> PAGE_SHIFT); @@ -292,7 +292,7 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) * * We simply copy the 2.4 implementation for now. */ -int pgt_cache_water[2] = { 25, 50 }; +static int pgt_cache_water[2] = { 25, 50 }; void check_pgt_cache(void) { @@ -356,8 +356,6 @@ void __init paging_init(void) device_scan(); } -struct cache_palias *sparc_aliases; - static void __init taint_real_pages(void) { int i; @@ -375,7 +373,7 @@ static void __init taint_real_pages(void) } } -void map_high_region(unsigned long start_pfn, unsigned long end_pfn) +static void map_high_region(unsigned long start_pfn, unsigned long end_pfn) { unsigned long tmp; diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 23d3291a3e81..c624e04ff03e 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -50,7 +50,7 @@ #include enum mbus_module srmmu_modtype; -unsigned int hwbug_bitmask; +static unsigned int hwbug_bitmask; int vac_cache_size; int vac_line_size; @@ -60,7 +60,7 @@ extern unsigned long last_valid_pfn; extern unsigned long page_kernel; -pgd_t *srmmu_swapper_pg_dir; +static pgd_t *srmmu_swapper_pg_dir; #ifdef CONFIG_SMP #define FLUSH_BEGIN(mm) @@ -83,12 +83,12 @@ BTFIXUPDEF_CALL(void, local_flush_page_for_dma, unsigned long) char *srmmu_name; ctxd_t *srmmu_ctx_table_phys; -ctxd_t *srmmu_context_table; +static ctxd_t *srmmu_context_table; int viking_mxcc_present; static DEFINE_SPINLOCK(srmmu_context_spinlock); -int is_hypersparc; +static int is_hypersparc; /* * In general all page table modifications should use the V8 atomic @@ -112,11 +112,11 @@ static inline int srmmu_device_memory(unsigned long x) return ((x & 0xF0000000) != 0); } -int srmmu_cache_pagetables; +static int srmmu_cache_pagetables; /* these will be initialized in srmmu_nocache_calcsize() */ -unsigned long srmmu_nocache_size; -unsigned long srmmu_nocache_end; +static unsigned long srmmu_nocache_size; +static unsigned long srmmu_nocache_end; /* 1 bit <=> 256 bytes of nocache <=> 64 PTEs */ #define SRMMU_NOCACHE_BITMAP_SHIFT (PAGE_SHIFT - 4) @@ -324,7 +324,7 @@ static unsigned long __srmmu_get_nocache(int size, int align) return (SRMMU_NOCACHE_VADDR + (offset << SRMMU_NOCACHE_BITMAP_SHIFT)); } -unsigned inline long srmmu_get_nocache(int size, int align) +static unsigned long srmmu_get_nocache(int size, int align) { unsigned long tmp; @@ -336,7 +336,7 @@ unsigned inline long srmmu_get_nocache(int size, int align) return tmp; } -void srmmu_free_nocache(unsigned long vaddr, int size) +static void srmmu_free_nocache(unsigned long vaddr, int size) { int offset; @@ -369,7 +369,8 @@ void srmmu_free_nocache(unsigned long vaddr, int size) bit_map_clear(&srmmu_nocache_map, offset, size); } -void srmmu_early_allocate_ptable_skeleton(unsigned long start, unsigned long end); +static void srmmu_early_allocate_ptable_skeleton(unsigned long start, + unsigned long end); extern unsigned long probe_memory(void); /* in fault.c */ @@ -377,7 +378,7 @@ extern unsigned long probe_memory(void); /* in fault.c */ * Reserve nocache dynamically proportionally to the amount of * system RAM. -- Tomas Szepe , June 2002 */ -void srmmu_nocache_calcsize(void) +static void srmmu_nocache_calcsize(void) { unsigned long sysmemavail = probe_memory() / 1024; int srmmu_nocache_npages; @@ -398,7 +399,7 @@ void srmmu_nocache_calcsize(void) srmmu_nocache_end = SRMMU_NOCACHE_VADDR + srmmu_nocache_size; } -void __init srmmu_nocache_init(void) +static void __init srmmu_nocache_init(void) { unsigned int bitmap_bits; pgd_t *pgd; @@ -645,7 +646,7 @@ static void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) * mappings on the kernel stack without any special code as we did * need on the sun4c. */ -struct thread_info *srmmu_alloc_thread_info(void) +static struct thread_info *srmmu_alloc_thread_info(void) { struct thread_info *ret; @@ -1045,13 +1046,14 @@ extern void hypersparc_setup_blockops(void); * around 8mb mapped for us. */ -void __init early_pgtable_allocfail(char *type) +static void __init early_pgtable_allocfail(char *type) { prom_printf("inherit_prom_mappings: Cannot alloc kernel %s.\n", type); prom_halt(); } -void __init srmmu_early_allocate_ptable_skeleton(unsigned long start, unsigned long end) +static void __init srmmu_early_allocate_ptable_skeleton(unsigned long start, + unsigned long end) { pgd_t *pgdp; pmd_t *pmdp; @@ -1081,7 +1083,8 @@ void __init srmmu_early_allocate_ptable_skeleton(unsigned long start, unsigned l } } -void __init srmmu_allocate_ptable_skeleton(unsigned long start, unsigned long end) +static void __init srmmu_allocate_ptable_skeleton(unsigned long start, + unsigned long end) { pgd_t *pgdp; pmd_t *pmdp; @@ -1116,7 +1119,8 @@ void __init srmmu_allocate_ptable_skeleton(unsigned long start, unsigned long en * looking at the prom's page table directly which is what most * other OS's do. Yuck... this is much better. */ -void __init srmmu_inherit_prom_mappings(unsigned long start,unsigned long end) +static void __init srmmu_inherit_prom_mappings(unsigned long start, + unsigned long end) { pgd_t *pgdp; pmd_t *pmdp; diff --git a/arch/sparc/mm/tsunami.S b/arch/sparc/mm/tsunami.S index db0d6de33a87..4e55e8f76648 100644 --- a/arch/sparc/mm/tsunami.S +++ b/arch/sparc/mm/tsunami.S @@ -93,7 +93,6 @@ tsunami_flush_tlb_page_out: ldd [src + offset + 0x00], t2; \ std t2, [dst + offset + 0x00]; - .globl tsunami_copy_1page tsunami_copy_1page: /* NOTE: This routine has to be shorter than 70insns --jj */ or %g0, (PAGE_SIZE >> 8), %g1 diff --git a/include/asm-sparc/mbus.h b/include/asm-sparc/mbus.h index bb5ae614b166..69f07a022ee6 100644 --- a/include/asm-sparc/mbus.h +++ b/include/asm-sparc/mbus.h @@ -43,8 +43,6 @@ extern unsigned int viking_rev, swift_rev, cypress_rev; #define HWBUG_SUPERSCALAR_BAD 0x00000080 #define HWBUG_PACINIT_BITROT 0x00000100 -extern unsigned int hwbug_bitmask; - /* First the module type values. To find out which you have, just load * the mmu control register from ASI_M_MMUREG alternate address space and * shift the value right 28 bits. diff --git a/include/asm-sparc/page.h b/include/asm-sparc/page.h index 6aa9e4c910cf..14de518cc38f 100644 --- a/include/asm-sparc/page.h +++ b/include/asm-sparc/page.h @@ -58,8 +58,6 @@ struct cache_palias { int context; }; -extern struct cache_palias *sparc_aliases; - /* passing structs on the Sparc slow us down tremendously... */ /* #define STRICT_MM_TYPECHECKS */ -- cgit v1.2.3 From 908f5162ca59ed46a928e8416db159777d432e77 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 5 Jun 2008 11:42:40 -0700 Subject: sparc64/kernel/: make code static This patch makes the following needlessly global code static: - central.c: struct central_bus - central.c: struct fhc_list - central.c: apply_fhc_ranges() - central.c: apply_central_ranges() - ds.c: struct ds_states_template[] - pci_msi.c: sparc64_setup_msi_irq() - pci_msi.c: sparc64_teardown_msi_irq() - pci_sun4v.c: struct sun4v_dma_ops - sys_sparc32.c: cp_compat_stat64() Signed-off-by: Adrian Bunk Signed-off-by: David S. Miller --- arch/sparc64/kernel/central.c | 14 +++++++------- arch/sparc64/kernel/ds.c | 2 +- arch/sparc64/kernel/pci_msi.c | 10 +++++----- arch/sparc64/kernel/pci_sun4v.c | 2 +- arch/sparc64/kernel/sys_sparc32.c | 3 ++- include/asm-sparc64/fhc.h | 10 ---------- 6 files changed, 16 insertions(+), 25 deletions(-) (limited to 'include') diff --git a/arch/sparc64/kernel/central.c b/arch/sparc64/kernel/central.c index b61b8dfb09cf..f2e87d0d7e1d 100644 --- a/arch/sparc64/kernel/central.c +++ b/arch/sparc64/kernel/central.c @@ -16,8 +16,8 @@ #include #include -struct linux_central *central_bus = NULL; -struct linux_fhc *fhc_list = NULL; +static struct linux_central *central_bus = NULL; +static struct linux_fhc *fhc_list = NULL; #define IS_CENTRAL_FHC(__fhc) ((__fhc) == central_bus->child) @@ -79,9 +79,9 @@ static void adjust_regs(struct linux_prom_registers *regp, int nregs, } /* Apply probed fhc ranges to registers passed, if no ranges return. */ -void apply_fhc_ranges(struct linux_fhc *fhc, - struct linux_prom_registers *regs, - int nregs) +static void apply_fhc_ranges(struct linux_fhc *fhc, + struct linux_prom_registers *regs, + int nregs) { if (fhc->num_fhc_ranges) adjust_regs(regs, nregs, fhc->fhc_ranges, @@ -89,8 +89,8 @@ void apply_fhc_ranges(struct linux_fhc *fhc, } /* Apply probed central ranges to registers passed, if no ranges return. */ -void apply_central_ranges(struct linux_central *central, - struct linux_prom_registers *regs, int nregs) +static void apply_central_ranges(struct linux_central *central, + struct linux_prom_registers *regs, int nregs) { if (central->num_central_ranges) adjust_regs(regs, nregs, central->central_ranges, diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c index edb74f5a1186..d0fa5aa38934 100644 --- a/arch/sparc64/kernel/ds.c +++ b/arch/sparc64/kernel/ds.c @@ -159,7 +159,7 @@ static void ds_var_data(struct ds_info *dp, struct ds_cap_state *cp, void *buf, int len); -struct ds_cap_state ds_states_template[] = { +static struct ds_cap_state ds_states_template[] = { { .service_id = "md-update", .data = md_update_data, diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c index db5e8fd8f674..60c71e350212 100644 --- a/arch/sparc64/kernel/pci_msi.c +++ b/arch/sparc64/kernel/pci_msi.c @@ -120,9 +120,9 @@ static struct irq_chip msi_irq = { /* XXX affinity XXX */ }; -int sparc64_setup_msi_irq(unsigned int *virt_irq_p, - struct pci_dev *pdev, - struct msi_desc *entry) +static int sparc64_setup_msi_irq(unsigned int *virt_irq_p, + struct pci_dev *pdev, + struct msi_desc *entry) { struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; const struct sparc64_msiq_ops *ops = pbm->msi_ops; @@ -179,8 +179,8 @@ out_err: return err; } -void sparc64_teardown_msi_irq(unsigned int virt_irq, - struct pci_dev *pdev) +static void sparc64_teardown_msi_irq(unsigned int virt_irq, + struct pci_dev *pdev) { struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; const struct sparc64_msiq_ops *ops = pbm->msi_ops; diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index e2bb9790039c..a104c80d319d 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -531,7 +531,7 @@ static void dma_4v_sync_sg_for_cpu(struct device *dev, /* Nothing to do... */ } -const struct dma_ops sun4v_dma_ops = { +static const struct dma_ops sun4v_dma_ops = { .alloc_coherent = dma_4v_alloc_coherent, .free_coherent = dma_4v_free_coherent, .map_single = dma_4v_map_single, diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c index ba5bd626b39e..590679795ce2 100644 --- a/arch/sparc64/kernel/sys_sparc32.c +++ b/arch/sparc64/kernel/sys_sparc32.c @@ -359,7 +359,8 @@ int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf) return err; } -int cp_compat_stat64(struct kstat *stat, struct compat_stat64 __user *statbuf) +static int cp_compat_stat64(struct kstat *stat, + struct compat_stat64 __user *statbuf) { int err; diff --git a/include/asm-sparc64/fhc.h b/include/asm-sparc64/fhc.h index ddffcdfbc984..788cbc46a116 100644 --- a/include/asm-sparc64/fhc.h +++ b/include/asm-sparc64/fhc.h @@ -118,14 +118,4 @@ struct linux_fhc { int num_fhc_ranges; }; -extern struct linux_central *central_bus; - -extern void apply_central_ranges(struct linux_central *central, - struct linux_prom_registers *regs, - int nregs); - -extern void apply_fhc_ranges(struct linux_fhc *fhc, - struct linux_prom_registers *regs, - int nregs); - #endif /* !(_SPARC64_FHC_H) */ -- cgit v1.2.3 From d6eaadfbbd836d13831630559ac483024f48d055 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 5 Jun 2008 11:45:42 -0700 Subject: sparc: remove PROM_AP1000 This seems to be left from the long gone AP1000 support. Signed-off-by: Adrian Bunk Signed-off-by: David S. Miller --- include/asm-sparc/oplib.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/asm-sparc/oplib.h b/include/asm-sparc/oplib.h index 61c3ca6a8ac3..00f487e74d92 100644 --- a/include/asm-sparc/oplib.h +++ b/include/asm-sparc/oplib.h @@ -21,7 +21,6 @@ enum prom_major_version { PROM_V2, /* sun4c and early sun4m V2 prom */ PROM_V3, /* sun4m and later, up to sun4d/sun4e machines V3 */ PROM_P1275, /* IEEE compliant ISA based Sun PROM, only sun4u */ - PROM_AP1000, /* actually no prom at all */ PROM_SUN4, /* Old sun4 proms are totally different, but we'll shoehorn it to make it fit */ }; -- cgit v1.2.3 From fc491d7da88b02275ad9ed7459006ca09b55953b Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 11:47:46 -0700 Subject: sparc: Merge include/asm-sparc{,64}/openpromio.h Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- include/asm-sparc64/openpromio.h | 70 +--------------------------------------- 1 file changed, 1 insertion(+), 69 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/openpromio.h b/include/asm-sparc64/openpromio.h index 847ce2326ad5..122fabda21f1 100644 --- a/include/asm-sparc64/openpromio.h +++ b/include/asm-sparc64/openpromio.h @@ -1,69 +1 @@ -#ifndef _SPARC64_OPENPROMIO_H -#define _SPARC64_OPENPROMIO_H - -#include -#include -#include - -/* - * SunOS and Solaris /dev/openprom definitions. The ioctl values - * were chosen to be exactly equal to the SunOS equivalents. - */ - -struct openpromio -{ - u_int oprom_size; /* Actual size of the oprom_array. */ - char oprom_array[1]; /* Holds property names and values. */ -}; - -#define OPROMMAXPARAM 4096 /* Maximum size of oprom_array. */ - -#define OPROMGETOPT 0x20004F01 -#define OPROMSETOPT 0x20004F02 -#define OPROMNXTOPT 0x20004F03 -#define OPROMSETOPT2 0x20004F04 -#define OPROMNEXT 0x20004F05 -#define OPROMCHILD 0x20004F06 -#define OPROMGETPROP 0x20004F07 -#define OPROMNXTPROP 0x20004F08 -#define OPROMU2P 0x20004F09 -#define OPROMGETCONS 0x20004F0A -#define OPROMGETFBNAME 0x20004F0B -#define OPROMGETBOOTARGS 0x20004F0C -/* Linux extensions */ /* Arguments in oprom_array: */ -#define OPROMSETCUR 0x20004FF0 /* int node - Sets current node */ -#define OPROMPCI2NODE 0x20004FF1 /* int pci_bus, pci_devfn - Sets current node to PCI device's node */ -#define OPROMPATH2NODE 0x20004FF2 /* char path[] - Set current node from fully qualified PROM path */ - -/* - * Return values from OPROMGETCONS: - */ - -#define OPROMCONS_NOT_WSCONS 0 -#define OPROMCONS_STDIN_IS_KBD 0x1 /* stdin device is kbd */ -#define OPROMCONS_STDOUT_IS_FB 0x2 /* stdout is a framebuffer */ -#define OPROMCONS_OPENPROM 0x4 /* supports openboot */ - - -/* - * NetBSD/OpenBSD /dev/openprom definitions. - */ - -struct opiocdesc -{ - int op_nodeid; /* PROM Node ID (value-result) */ - int op_namelen; /* Length of op_name. */ - char __user *op_name; /* Pointer to the property name. */ - int op_buflen; /* Length of op_buf (value-result) */ - char __user *op_buf; /* Pointer to buffer. */ -}; - -#define OPIOCGET _IOWR('O', 1, struct opiocdesc) -#define OPIOCSET _IOW('O', 2, struct opiocdesc) -#define OPIOCNEXTPROP _IOWR('O', 3, struct opiocdesc) -#define OPIOCGETOPTNODE _IOR('O', 4, int) -#define OPIOCGETNEXT _IOWR('O', 5, int) -#define OPIOCGETCHILD _IOWR('O', 6, int) - -#endif /* _SPARC64_OPENPROMIO_H */ - +#include -- cgit v1.2.3 From 3f261e829f56185eee3b224615636b99d54c3b3e Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 11:48:20 -0700 Subject: sparc: Merge include/asm-sparc{,64}/perfctr.h Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- include/asm-sparc64/perfctr.h | 174 +----------------------------------------- 1 file changed, 1 insertion(+), 173 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/perfctr.h b/include/asm-sparc64/perfctr.h index 836873002b75..52073a9f8e30 100644 --- a/include/asm-sparc64/perfctr.h +++ b/include/asm-sparc64/perfctr.h @@ -1,173 +1 @@ -/*---------------------------------------- - PERFORMANCE INSTRUMENTATION - Guillaume Thouvenin 08/10/98 - David S. Miller 10/06/98 - ---------------------------------------*/ -#ifndef PERF_COUNTER_API -#define PERF_COUNTER_API - -/* sys_perfctr() interface. First arg is operation code - * from enumeration below. The meaning of further arguments - * are determined by the operation code. - * - * int sys_perfctr(int opcode, unsigned long arg0, - * unsigned long arg1, unsigned long arg2) - * - * Pointers which are passed by the user are pointers to 64-bit - * integers. - * - * Once enabled, performance counter state is retained until the - * process either exits or performs an exec. That is, performance - * counters remain enabled for fork/clone children. - */ -enum perfctr_opcode { - /* Enable UltraSparc performance counters, ARG0 is pointer - * to 64-bit accumulator for D0 counter in PIC, ARG1 is pointer - * to 64-bit accumulator for D1 counter. ARG2 is a pointer to - * the initial PCR register value to use. - */ - PERFCTR_ON, - - /* Disable UltraSparc performance counters. The PCR is written - * with zero and the user counter accumulator pointers and - * working PCR register value are forgotten. - */ - PERFCTR_OFF, - - /* Add current D0 and D1 PIC values into user pointers given - * in PERFCTR_ON operation. The PIC is cleared before returning. - */ - PERFCTR_READ, - - /* Clear the PIC register. */ - PERFCTR_CLRPIC, - - /* Begin using a new PCR value, the pointer to which is passed - * in ARG0. The PIC is also cleared after the new PCR value is - * written. - */ - PERFCTR_SETPCR, - - /* Store in pointer given in ARG0 the current PCR register value - * being used. - */ - PERFCTR_GETPCR -}; - -/* I don't want the kernel's namespace to be polluted with this - * stuff when this file is included. --DaveM - */ -#ifndef __KERNEL__ - -#define PRIV 0x00000001 -#define SYS 0x00000002 -#define USR 0x00000004 - -/* Pic.S0 Selection Bit Field Encoding, Ultra-I/II */ -#define CYCLE_CNT 0x00000000 -#define INSTR_CNT 0x00000010 -#define DISPATCH0_IC_MISS 0x00000020 -#define DISPATCH0_STOREBUF 0x00000030 -#define IC_REF 0x00000080 -#define DC_RD 0x00000090 -#define DC_WR 0x000000A0 -#define LOAD_USE 0x000000B0 -#define EC_REF 0x000000C0 -#define EC_WRITE_HIT_RDO 0x000000D0 -#define EC_SNOOP_INV 0x000000E0 -#define EC_RD_HIT 0x000000F0 - -/* Pic.S0 Selection Bit Field Encoding, Ultra-III */ -#define US3_CYCLE_CNT 0x00000000 -#define US3_INSTR_CNT 0x00000010 -#define US3_DISPATCH0_IC_MISS 0x00000020 -#define US3_DISPATCH0_BR_TGT 0x00000030 -#define US3_DISPATCH0_2ND_BR 0x00000040 -#define US3_RSTALL_STOREQ 0x00000050 -#define US3_RSTALL_IU_USE 0x00000060 -#define US3_IC_REF 0x00000080 -#define US3_DC_RD 0x00000090 -#define US3_DC_WR 0x000000a0 -#define US3_EC_REF 0x000000c0 -#define US3_EC_WR_HIT_RTO 0x000000d0 -#define US3_EC_SNOOP_INV 0x000000e0 -#define US3_EC_RD_MISS 0x000000f0 -#define US3_PC_PORT0_RD 0x00000100 -#define US3_SI_SNOOP 0x00000110 -#define US3_SI_CIQ_FLOW 0x00000120 -#define US3_SI_OWNED 0x00000130 -#define US3_SW_COUNT_0 0x00000140 -#define US3_IU_BR_MISS_TAKEN 0x00000150 -#define US3_IU_BR_COUNT_TAKEN 0x00000160 -#define US3_DISP_RS_MISPRED 0x00000170 -#define US3_FA_PIPE_COMPL 0x00000180 -#define US3_MC_READS_0 0x00000200 -#define US3_MC_READS_1 0x00000210 -#define US3_MC_READS_2 0x00000220 -#define US3_MC_READS_3 0x00000230 -#define US3_MC_STALLS_0 0x00000240 -#define US3_MC_STALLS_2 0x00000250 - -/* Pic.S1 Selection Bit Field Encoding, Ultra-I/II */ -#define CYCLE_CNT_D1 0x00000000 -#define INSTR_CNT_D1 0x00000800 -#define DISPATCH0_IC_MISPRED 0x00001000 -#define DISPATCH0_FP_USE 0x00001800 -#define IC_HIT 0x00004000 -#define DC_RD_HIT 0x00004800 -#define DC_WR_HIT 0x00005000 -#define LOAD_USE_RAW 0x00005800 -#define EC_HIT 0x00006000 -#define EC_WB 0x00006800 -#define EC_SNOOP_CB 0x00007000 -#define EC_IT_HIT 0x00007800 - -/* Pic.S1 Selection Bit Field Encoding, Ultra-III */ -#define US3_CYCLE_CNT_D1 0x00000000 -#define US3_INSTR_CNT_D1 0x00000800 -#define US3_DISPATCH0_MISPRED 0x00001000 -#define US3_IC_MISS_CANCELLED 0x00001800 -#define US3_RE_ENDIAN_MISS 0x00002000 -#define US3_RE_FPU_BYPASS 0x00002800 -#define US3_RE_DC_MISS 0x00003000 -#define US3_RE_EC_MISS 0x00003800 -#define US3_IC_MISS 0x00004000 -#define US3_DC_RD_MISS 0x00004800 -#define US3_DC_WR_MISS 0x00005000 -#define US3_RSTALL_FP_USE 0x00005800 -#define US3_EC_MISSES 0x00006000 -#define US3_EC_WB 0x00006800 -#define US3_EC_SNOOP_CB 0x00007000 -#define US3_EC_IC_MISS 0x00007800 -#define US3_RE_PC_MISS 0x00008000 -#define US3_ITLB_MISS 0x00008800 -#define US3_DTLB_MISS 0x00009000 -#define US3_WC_MISS 0x00009800 -#define US3_WC_SNOOP_CB 0x0000a000 -#define US3_WC_SCRUBBED 0x0000a800 -#define US3_WC_WB_WO_READ 0x0000b000 -#define US3_PC_SOFT_HIT 0x0000c000 -#define US3_PC_SNOOP_INV 0x0000c800 -#define US3_PC_HARD_HIT 0x0000d000 -#define US3_PC_PORT1_RD 0x0000d800 -#define US3_SW_COUNT_1 0x0000e000 -#define US3_IU_STAT_BR_MIS_UNTAKEN 0x0000e800 -#define US3_IU_STAT_BR_COUNT_UNTAKEN 0x0000f000 -#define US3_PC_MS_MISSES 0x0000f800 -#define US3_MC_WRITES_0 0x00010800 -#define US3_MC_WRITES_1 0x00011000 -#define US3_MC_WRITES_2 0x00011800 -#define US3_MC_WRITES_3 0x00012000 -#define US3_MC_STALLS_1 0x00012800 -#define US3_MC_STALLS_3 0x00013000 -#define US3_RE_RAW_MISS 0x00013800 -#define US3_FM_PIPE_COMPLETION 0x00014000 - -struct vcounter_struct { - unsigned long long vcnt0; - unsigned long long vcnt1; -}; - -#endif /* !(__KERNEL__) */ - -#endif /* !(PERF_COUNTER_API) */ +#include -- cgit v1.2.3 From 597631f2eadc94a1c5109c639af1e575cf587d8b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 10 Jun 2008 13:00:12 -0700 Subject: sparc64 Kbuild: apb.h and bbc.h should not be exported to userspace Signed-off-by: David S. Miller --- include/asm-sparc64/Kbuild | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/Kbuild b/include/asm-sparc64/Kbuild index dce1cf9a9313..7e88c1292d10 100644 --- a/include/asm-sparc64/Kbuild +++ b/include/asm-sparc64/Kbuild @@ -4,9 +4,7 @@ ALTARCH := sparc ARCHDEF := defined __sparc__ && defined __arch64__ ALTARCHDEF := defined __sparc__ && !defined __arch64__ -header-y += apb.h header-y += asi.h -header-y += bbc.h header-y += bpp.h header-y += display7seg.h header-y += envctrl.h -- cgit v1.2.3 From 09d3e1baa1f23bba39950990c5dddfb7fcc86238 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 13 Jun 2008 08:26:32 +0200 Subject: sparc: copy exported sparc64 specific header files to asm-sparc Copy was done using the following simple script: set -e SPARC64="h display7seg.h envctrl.h psrcompat.h pstate.h uctx.h utrap.h watchdog.h" for FILE in ${SPARC64}; do if [ -f asm-sparc/$FILE ]; then echo $FILE exist in asm-sparc fi cat asm-sparc64/$FILE > asm-sparc/$FILE printf "#include \n" > asm-sparc64/$FILE done The name of the copied files are added to asm-sparc/Kbuild to keep "make headers_check" functional. Signed-off-by: Sam Ravnborg --- include/asm-sparc/Kbuild | 7 +++ include/asm-sparc/display7seg.h | 79 +++++++++++++++++++++++++++++ include/asm-sparc/envctrl.h | 103 +++++++++++++++++++++++++++++++++++++ include/asm-sparc/psrcompat.h | 45 +++++++++++++++++ include/asm-sparc/pstate.h | 91 +++++++++++++++++++++++++++++++++ include/asm-sparc/uctx.h | 71 ++++++++++++++++++++++++++ include/asm-sparc/utrap.h | 51 +++++++++++++++++++ include/asm-sparc/watchdog.h | 31 ++++++++++++ include/asm-sparc64/display7seg.h | 80 +---------------------------- include/asm-sparc64/envctrl.h | 104 +------------------------------------- include/asm-sparc64/psrcompat.h | 46 +---------------- include/asm-sparc64/pstate.h | 92 +-------------------------------- include/asm-sparc64/uctx.h | 72 +------------------------- include/asm-sparc64/utrap.h | 52 +------------------ include/asm-sparc64/watchdog.h | 32 +----------- 15 files changed, 485 insertions(+), 471 deletions(-) create mode 100644 include/asm-sparc/display7seg.h create mode 100644 include/asm-sparc/envctrl.h create mode 100644 include/asm-sparc/psrcompat.h create mode 100644 include/asm-sparc/pstate.h create mode 100644 include/asm-sparc/uctx.h create mode 100644 include/asm-sparc/utrap.h create mode 100644 include/asm-sparc/watchdog.h (limited to 'include') diff --git a/include/asm-sparc/Kbuild b/include/asm-sparc/Kbuild index 671223718f0a..c8432483628e 100644 --- a/include/asm-sparc/Kbuild +++ b/include/asm-sparc/Kbuild @@ -3,11 +3,18 @@ include include/asm-generic/Kbuild.asm header-y += apc.h header-y += asi.h header-y += bpp.h +header-y += display7seg.h +header-y += envctrl.h header-y += jsflash.h header-y += openpromio.h +header-y += psrcompat.h +header-y += pstate.h header-y += reg.h header-y += traps.h +header-y += uctx.h +header-y += utrap.h header-y += vfc_ioctls.h +header-y += watchdog.h unifdef-y += fbio.h unifdef-y += perfctr.h diff --git a/include/asm-sparc/display7seg.h b/include/asm-sparc/display7seg.h new file mode 100644 index 000000000000..86d4a901df24 --- /dev/null +++ b/include/asm-sparc/display7seg.h @@ -0,0 +1,79 @@ +/* + * + * display7seg - Driver interface for the 7-segment display + * present on Sun Microsystems CP1400 and CP1500 + * + * Copyright (c) 2000 Eric Brower + * + */ + +#ifndef __display7seg_h__ +#define __display7seg_h__ + +#define D7S_IOC 'p' + +#define D7SIOCRD _IOR(D7S_IOC, 0x45, int) /* Read device state */ +#define D7SIOCWR _IOW(D7S_IOC, 0x46, int) /* Write device state */ +#define D7SIOCTM _IO (D7S_IOC, 0x47) /* Translate mode (FLIP)*/ + +/* + * ioctl flag definitions + * + * POINT - Toggle decimal point (0=absent 1=present) + * ALARM - Toggle alarm LED (0=green 1=red) + * FLIP - Toggle inverted mode (0=normal 1=flipped) + * bits 0-4 - Character displayed (see definitions below) + * + * Display segments are defined as follows, + * subject to D7S_FLIP register state: + * + * a + * --- + * f| |b + * -g- + * e| |c + * --- + * d + */ + +#define D7S_POINT (1 << 7) /* Decimal point*/ +#define D7S_ALARM (1 << 6) /* Alarm LED */ +#define D7S_FLIP (1 << 5) /* Flip display */ + +#define D7S_0 0x00 /* Numerals 0-9 */ +#define D7S_1 0x01 +#define D7S_2 0x02 +#define D7S_3 0x03 +#define D7S_4 0x04 +#define D7S_5 0x05 +#define D7S_6 0x06 +#define D7S_7 0x07 +#define D7S_8 0x08 +#define D7S_9 0x09 +#define D7S_A 0x0A /* Letters A-F, H, L, P */ +#define D7S_B 0x0B +#define D7S_C 0x0C +#define D7S_D 0x0D +#define D7S_E 0x0E +#define D7S_F 0x0F +#define D7S_H 0x10 +#define D7S_E2 0x11 +#define D7S_L 0x12 +#define D7S_P 0x13 +#define D7S_SEGA 0x14 /* Individual segments */ +#define D7S_SEGB 0x15 +#define D7S_SEGC 0x16 +#define D7S_SEGD 0x17 +#define D7S_SEGE 0x18 +#define D7S_SEGF 0x19 +#define D7S_SEGG 0x1A +#define D7S_SEGABFG 0x1B /* Segment groupings */ +#define D7S_SEGCDEG 0x1C +#define D7S_SEGBCEF 0x1D +#define D7S_SEGADG 0x1E +#define D7S_BLANK 0x1F /* Clear all segments */ + +#define D7S_MIN_VAL 0x0 +#define D7S_MAX_VAL 0x1F + +#endif /* ifndef __display7seg_h__ */ diff --git a/include/asm-sparc/envctrl.h b/include/asm-sparc/envctrl.h new file mode 100644 index 000000000000..624fa7e2da8e --- /dev/null +++ b/include/asm-sparc/envctrl.h @@ -0,0 +1,103 @@ +/* + * + * envctrl.h: Definitions for access to the i2c environment + * monitoring on Ultrasparc systems. + * + * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) + * Copyright (C) 2000 Vinh Truong (vinh.truong@eng.sun.com) + * VT - Add all ioctl commands and environment status definitions + * VT - Add application note + */ +#ifndef _SPARC64_ENVCTRL_H +#define _SPARC64_ENVCTRL_H 1 + +#include + +/* Application note: + * + * The driver supports 4 operations: open(), close(), ioctl(), read() + * The device name is /dev/envctrl. + * Below is sample usage: + * + * fd = open("/dev/envtrl", O_RDONLY); + * if (ioctl(fd, ENVCTRL_READ_SHUTDOWN_TEMPERATURE, 0) < 0) + * printf("error\n"); + * ret = read(fd, buf, 10); + * close(fd); + * + * Notice in the case of cpu voltage and temperature, the default is + * cpu0. If we need to know the info of cpu1, cpu2, cpu3, we need to + * pass in cpu number in ioctl() last parameter. For example, to + * get the voltage of cpu2: + * + * ioctlbuf[0] = 2; + * if (ioctl(fd, ENVCTRL_READ_CPU_VOLTAGE, ioctlbuf) < 0) + * printf("error\n"); + * ret = read(fd, buf, 10); + * + * All the return values are in ascii. So check read return value + * and do appropriate conversions in your application. + */ + +/* IOCTL commands */ + +/* Note: these commands reflect possible monitor features. + * Some boards choose to support some of the features only. + */ +#define ENVCTRL_RD_CPU_TEMPERATURE _IOR('p', 0x40, int) +#define ENVCTRL_RD_CPU_VOLTAGE _IOR('p', 0x41, int) +#define ENVCTRL_RD_FAN_STATUS _IOR('p', 0x42, int) +#define ENVCTRL_RD_WARNING_TEMPERATURE _IOR('p', 0x43, int) +#define ENVCTRL_RD_SHUTDOWN_TEMPERATURE _IOR('p', 0x44, int) +#define ENVCTRL_RD_VOLTAGE_STATUS _IOR('p', 0x45, int) +#define ENVCTRL_RD_SCSI_TEMPERATURE _IOR('p', 0x46, int) +#define ENVCTRL_RD_ETHERNET_TEMPERATURE _IOR('p', 0x47, int) +#define ENVCTRL_RD_MTHRBD_TEMPERATURE _IOR('p', 0x48, int) + +#define ENVCTRL_RD_GLOBALADDRESS _IOR('p', 0x49, int) + +/* Read return values for a voltage status request. */ +#define ENVCTRL_VOLTAGE_POWERSUPPLY_GOOD 0x01 +#define ENVCTRL_VOLTAGE_BAD 0x02 +#define ENVCTRL_POWERSUPPLY_BAD 0x03 +#define ENVCTRL_VOLTAGE_POWERSUPPLY_BAD 0x04 + +/* Read return values for a fan status request. + * A failure match means either the fan fails or + * the fan is not connected. Some boards have optional + * connectors to connect extra fans. + * + * There are maximum 8 monitor fans. Some are cpu fans + * some are system fans. The mask below only indicates + * fan by order number. + * Below is a sample application: + * + * if (ioctl(fd, ENVCTRL_READ_FAN_STATUS, 0) < 0) { + * printf("ioctl fan failed\n"); + * } + * if (read(fd, rslt, 1) <= 0) { + * printf("error or fan not monitored\n"); + * } else { + * if (rslt[0] == ENVCTRL_ALL_FANS_GOOD) { + * printf("all fans good\n"); + * } else if (rslt[0] == ENVCTRL_ALL_FANS_BAD) { + * printf("all fans bad\n"); + * } else { + * if (rslt[0] & ENVCTRL_FAN0_FAILURE_MASK) { + * printf("fan 0 failed or not connected\n"); + * } + * ...... + */ + +#define ENVCTRL_ALL_FANS_GOOD 0x00 +#define ENVCTRL_FAN0_FAILURE_MASK 0x01 +#define ENVCTRL_FAN1_FAILURE_MASK 0x02 +#define ENVCTRL_FAN2_FAILURE_MASK 0x04 +#define ENVCTRL_FAN3_FAILURE_MASK 0x08 +#define ENVCTRL_FAN4_FAILURE_MASK 0x10 +#define ENVCTRL_FAN5_FAILURE_MASK 0x20 +#define ENVCTRL_FAN6_FAILURE_MASK 0x40 +#define ENVCTRL_FAN7_FAILURE_MASK 0x80 +#define ENVCTRL_ALL_FANS_BAD 0xFF + +#endif /* !(_SPARC64_ENVCTRL_H) */ diff --git a/include/asm-sparc/psrcompat.h b/include/asm-sparc/psrcompat.h new file mode 100644 index 000000000000..44b6327dbbf5 --- /dev/null +++ b/include/asm-sparc/psrcompat.h @@ -0,0 +1,45 @@ +#ifndef _SPARC64_PSRCOMPAT_H +#define _SPARC64_PSRCOMPAT_H + +#include + +/* Old 32-bit PSR fields for the compatibility conversion code. */ +#define PSR_CWP 0x0000001f /* current window pointer */ +#define PSR_ET 0x00000020 /* enable traps field */ +#define PSR_PS 0x00000040 /* previous privilege level */ +#define PSR_S 0x00000080 /* current privilege level */ +#define PSR_PIL 0x00000f00 /* processor interrupt level */ +#define PSR_EF 0x00001000 /* enable floating point */ +#define PSR_EC 0x00002000 /* enable co-processor */ +#define PSR_SYSCALL 0x00004000 /* inside of a syscall */ +#define PSR_LE 0x00008000 /* SuperSparcII little-endian */ +#define PSR_ICC 0x00f00000 /* integer condition codes */ +#define PSR_C 0x00100000 /* carry bit */ +#define PSR_V 0x00200000 /* overflow bit */ +#define PSR_Z 0x00400000 /* zero bit */ +#define PSR_N 0x00800000 /* negative bit */ +#define PSR_VERS 0x0f000000 /* cpu-version field */ +#define PSR_IMPL 0xf0000000 /* cpu-implementation field */ + +#define PSR_V8PLUS 0xff000000 /* fake impl/ver, meaning a 64bit CPU is present */ +#define PSR_XCC 0x000f0000 /* if PSR_V8PLUS, this is %xcc */ + +static inline unsigned int tstate_to_psr(unsigned long tstate) +{ + return ((tstate & TSTATE_CWP) | + PSR_S | + ((tstate & TSTATE_ICC) >> 12) | + ((tstate & TSTATE_XCC) >> 20) | + ((tstate & TSTATE_SYSCALL) ? PSR_SYSCALL : 0) | + PSR_V8PLUS); +} + +static inline unsigned long psr_to_tstate_icc(unsigned int psr) +{ + unsigned long tstate = ((unsigned long)(psr & PSR_ICC)) << 12; + if ((psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS) + tstate |= ((unsigned long)(psr & PSR_XCC)) << 20; + return tstate; +} + +#endif /* !(_SPARC64_PSRCOMPAT_H) */ diff --git a/include/asm-sparc/pstate.h b/include/asm-sparc/pstate.h new file mode 100644 index 000000000000..a26a53777bb0 --- /dev/null +++ b/include/asm-sparc/pstate.h @@ -0,0 +1,91 @@ +#ifndef _SPARC64_PSTATE_H +#define _SPARC64_PSTATE_H + +#include + +/* The V9 PSTATE Register (with SpitFire extensions). + * + * ----------------------------------------------------------------------- + * | Resv | IG | MG | CLE | TLE | MM | RED | PEF | AM | PRIV | IE | AG | + * ----------------------------------------------------------------------- + * 63 12 11 10 9 8 7 6 5 4 3 2 1 0 + */ +#define PSTATE_IG _AC(0x0000000000000800,UL) /* Interrupt Globals. */ +#define PSTATE_MG _AC(0x0000000000000400,UL) /* MMU Globals. */ +#define PSTATE_CLE _AC(0x0000000000000200,UL) /* Current Little Endian.*/ +#define PSTATE_TLE _AC(0x0000000000000100,UL) /* Trap Little Endian. */ +#define PSTATE_MM _AC(0x00000000000000c0,UL) /* Memory Model. */ +#define PSTATE_TSO _AC(0x0000000000000000,UL) /* MM: TotalStoreOrder */ +#define PSTATE_PSO _AC(0x0000000000000040,UL) /* MM: PartialStoreOrder */ +#define PSTATE_RMO _AC(0x0000000000000080,UL) /* MM: RelaxedMemoryOrder*/ +#define PSTATE_RED _AC(0x0000000000000020,UL) /* Reset Error Debug. */ +#define PSTATE_PEF _AC(0x0000000000000010,UL) /* Floating Point Enable.*/ +#define PSTATE_AM _AC(0x0000000000000008,UL) /* Address Mask. */ +#define PSTATE_PRIV _AC(0x0000000000000004,UL) /* Privilege. */ +#define PSTATE_IE _AC(0x0000000000000002,UL) /* Interrupt Enable. */ +#define PSTATE_AG _AC(0x0000000000000001,UL) /* Alternate Globals. */ + +/* The V9 TSTATE Register (with SpitFire and Linux extensions). + * + * --------------------------------------------------------------------- + * | Resv | GL | CCR | ASI | %pil | PSTATE | Resv | CWP | + * --------------------------------------------------------------------- + * 63 43 42 40 39 32 31 24 23 20 19 8 7 5 4 0 + */ +#define TSTATE_GL _AC(0x0000070000000000,UL) /* Global reg level */ +#define TSTATE_CCR _AC(0x000000ff00000000,UL) /* Condition Codes. */ +#define TSTATE_XCC _AC(0x000000f000000000,UL) /* Condition Codes. */ +#define TSTATE_XNEG _AC(0x0000008000000000,UL) /* %xcc Negative. */ +#define TSTATE_XZERO _AC(0x0000004000000000,UL) /* %xcc Zero. */ +#define TSTATE_XOVFL _AC(0x0000002000000000,UL) /* %xcc Overflow. */ +#define TSTATE_XCARRY _AC(0x0000001000000000,UL) /* %xcc Carry. */ +#define TSTATE_ICC _AC(0x0000000f00000000,UL) /* Condition Codes. */ +#define TSTATE_INEG _AC(0x0000000800000000,UL) /* %icc Negative. */ +#define TSTATE_IZERO _AC(0x0000000400000000,UL) /* %icc Zero. */ +#define TSTATE_IOVFL _AC(0x0000000200000000,UL) /* %icc Overflow. */ +#define TSTATE_ICARRY _AC(0x0000000100000000,UL) /* %icc Carry. */ +#define TSTATE_ASI _AC(0x00000000ff000000,UL) /* AddrSpace ID. */ +#define TSTATE_PIL _AC(0x0000000000f00000,UL) /* %pil (Linux traps)*/ +#define TSTATE_PSTATE _AC(0x00000000000fff00,UL) /* PSTATE. */ +#define TSTATE_IG _AC(0x0000000000080000,UL) /* Interrupt Globals.*/ +#define TSTATE_MG _AC(0x0000000000040000,UL) /* MMU Globals. */ +#define TSTATE_CLE _AC(0x0000000000020000,UL) /* CurrLittleEndian. */ +#define TSTATE_TLE _AC(0x0000000000010000,UL) /* TrapLittleEndian. */ +#define TSTATE_MM _AC(0x000000000000c000,UL) /* Memory Model. */ +#define TSTATE_TSO _AC(0x0000000000000000,UL) /* MM: TSO */ +#define TSTATE_PSO _AC(0x0000000000004000,UL) /* MM: PSO */ +#define TSTATE_RMO _AC(0x0000000000008000,UL) /* MM: RMO */ +#define TSTATE_RED _AC(0x0000000000002000,UL) /* Reset Error Debug.*/ +#define TSTATE_PEF _AC(0x0000000000001000,UL) /* FPU Enable. */ +#define TSTATE_AM _AC(0x0000000000000800,UL) /* Address Mask. */ +#define TSTATE_PRIV _AC(0x0000000000000400,UL) /* Privilege. */ +#define TSTATE_IE _AC(0x0000000000000200,UL) /* Interrupt Enable. */ +#define TSTATE_AG _AC(0x0000000000000100,UL) /* Alternate Globals.*/ +#define TSTATE_SYSCALL _AC(0x0000000000000020,UL) /* in syscall trap */ +#define TSTATE_CWP _AC(0x000000000000001f,UL) /* Curr Win-Pointer. */ + +/* Floating-Point Registers State Register. + * + * -------------------------------- + * | Resv | FEF | DU | DL | + * -------------------------------- + * 63 3 2 1 0 + */ +#define FPRS_FEF _AC(0x0000000000000004,UL) /* FPU Enable. */ +#define FPRS_DU _AC(0x0000000000000002,UL) /* Dirty Upper. */ +#define FPRS_DL _AC(0x0000000000000001,UL) /* Dirty Lower. */ + +/* Version Register. + * + * ------------------------------------------------------ + * | MANUF | IMPL | MASK | Resv | MAXTL | Resv | MAXWIN | + * ------------------------------------------------------ + * 63 48 47 32 31 24 23 16 15 8 7 5 4 0 + */ +#define VERS_MANUF _AC(0xffff000000000000,UL) /* Manufacturer. */ +#define VERS_IMPL _AC(0x0000ffff00000000,UL) /* Implementation. */ +#define VERS_MASK _AC(0x00000000ff000000,UL) /* Mask Set Revision.*/ +#define VERS_MAXTL _AC(0x000000000000ff00,UL) /* Max Trap Level. */ +#define VERS_MAXWIN _AC(0x000000000000001f,UL) /* Max RegWindow Idx.*/ + +#endif /* !(_SPARC64_PSTATE_H) */ diff --git a/include/asm-sparc/uctx.h b/include/asm-sparc/uctx.h new file mode 100644 index 000000000000..dc937c75ffdd --- /dev/null +++ b/include/asm-sparc/uctx.h @@ -0,0 +1,71 @@ +/* + * uctx.h: Sparc64 {set,get}context() register state layouts. + * + * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef __SPARC64_UCTX_H +#define __SPARC64_UCTX_H + +#define MC_TSTATE 0 +#define MC_PC 1 +#define MC_NPC 2 +#define MC_Y 3 +#define MC_G1 4 +#define MC_G2 5 +#define MC_G3 6 +#define MC_G4 7 +#define MC_G5 8 +#define MC_G6 9 +#define MC_G7 10 +#define MC_O0 11 +#define MC_O1 12 +#define MC_O2 13 +#define MC_O3 14 +#define MC_O4 15 +#define MC_O5 16 +#define MC_O6 17 +#define MC_O7 18 +#define MC_NGREG 19 + +typedef unsigned long mc_greg_t; +typedef mc_greg_t mc_gregset_t[MC_NGREG]; + +#define MC_MAXFPQ 16 +struct mc_fq { + unsigned long *mcfq_addr; + unsigned int mcfq_insn; +}; + +struct mc_fpu { + union { + unsigned int sregs[32]; + unsigned long dregs[32]; + long double qregs[16]; + } mcfpu_fregs; + unsigned long mcfpu_fsr; + unsigned long mcfpu_fprs; + unsigned long mcfpu_gsr; + struct mc_fq *mcfpu_fq; + unsigned char mcfpu_qcnt; + unsigned char mcfpu_qentsz; + unsigned char mcfpu_enab; +}; +typedef struct mc_fpu mc_fpu_t; + +typedef struct { + mc_gregset_t mc_gregs; + mc_greg_t mc_fp; + mc_greg_t mc_i7; + mc_fpu_t mc_fpregs; +} mcontext_t; + +struct ucontext { + struct ucontext *uc_link; + unsigned long uc_flags; + sigset_t uc_sigmask; + mcontext_t uc_mcontext; +}; +typedef struct ucontext ucontext_t; + +#endif /* __SPARC64_UCTX_H */ diff --git a/include/asm-sparc/utrap.h b/include/asm-sparc/utrap.h new file mode 100644 index 000000000000..9da37babbe5b --- /dev/null +++ b/include/asm-sparc/utrap.h @@ -0,0 +1,51 @@ +/* + * include/asm-sparc64/utrap.h + * + * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#ifndef __ASM_SPARC64_UTRAP_H +#define __ASM_SPARC64_UTRAP_H + +#define UT_INSTRUCTION_EXCEPTION 1 +#define UT_INSTRUCTION_ERROR 2 +#define UT_INSTRUCTION_PROTECTION 3 +#define UT_ILLTRAP_INSTRUCTION 4 +#define UT_ILLEGAL_INSTRUCTION 5 +#define UT_PRIVILEGED_OPCODE 6 +#define UT_FP_DISABLED 7 +#define UT_FP_EXCEPTION_IEEE_754 8 +#define UT_FP_EXCEPTION_OTHER 9 +#define UT_TAG_OVERVIEW 10 +#define UT_DIVISION_BY_ZERO 11 +#define UT_DATA_EXCEPTION 12 +#define UT_DATA_ERROR 13 +#define UT_DATA_PROTECTION 14 +#define UT_MEM_ADDRESS_NOT_ALIGNED 15 +#define UT_PRIVILEGED_ACTION 16 +#define UT_ASYNC_DATA_ERROR 17 +#define UT_TRAP_INSTRUCTION_16 18 +#define UT_TRAP_INSTRUCTION_17 19 +#define UT_TRAP_INSTRUCTION_18 20 +#define UT_TRAP_INSTRUCTION_19 21 +#define UT_TRAP_INSTRUCTION_20 22 +#define UT_TRAP_INSTRUCTION_21 23 +#define UT_TRAP_INSTRUCTION_22 24 +#define UT_TRAP_INSTRUCTION_23 25 +#define UT_TRAP_INSTRUCTION_24 26 +#define UT_TRAP_INSTRUCTION_25 27 +#define UT_TRAP_INSTRUCTION_26 28 +#define UT_TRAP_INSTRUCTION_27 29 +#define UT_TRAP_INSTRUCTION_28 30 +#define UT_TRAP_INSTRUCTION_29 31 +#define UT_TRAP_INSTRUCTION_30 32 +#define UT_TRAP_INSTRUCTION_31 33 + +#define UTH_NOCHANGE (-1) + +#ifndef __ASSEMBLY__ +typedef int utrap_entry_t; +typedef void *utrap_handler_t; +#endif /* __ASSEMBLY__ */ + +#endif /* !(__ASM_SPARC64_PROCESSOR_H) */ diff --git a/include/asm-sparc/watchdog.h b/include/asm-sparc/watchdog.h new file mode 100644 index 000000000000..5baf2d3919cf --- /dev/null +++ b/include/asm-sparc/watchdog.h @@ -0,0 +1,31 @@ +/* + * + * watchdog - Driver interface for the hardware watchdog timers + * present on Sun Microsystems boardsets + * + * Copyright (c) 2000 Eric Brower + * + */ + +#ifndef _SPARC64_WATCHDOG_H +#define _SPARC64_WATCHDOG_H + +#include + +/* Solaris compatibility ioctls-- + * Ref. for standard linux watchdog ioctls + */ +#define WIOCSTART _IO (WATCHDOG_IOCTL_BASE, 10) /* Start Timer */ +#define WIOCSTOP _IO (WATCHDOG_IOCTL_BASE, 11) /* Stop Timer */ +#define WIOCGSTAT _IOR(WATCHDOG_IOCTL_BASE, 12, int)/* Get Timer Status */ + +/* Status flags from WIOCGSTAT ioctl + */ +#define WD_FREERUN 0x01 /* timer is running, interrupts disabled */ +#define WD_EXPIRED 0x02 /* timer has expired */ +#define WD_RUNNING 0x04 /* timer is running, interrupts enabled */ +#define WD_STOPPED 0x08 /* timer has not been started */ +#define WD_SERVICED 0x10 /* timer interrupt was serviced */ + +#endif /* ifndef _SPARC64_WATCHDOG_H */ + diff --git a/include/asm-sparc64/display7seg.h b/include/asm-sparc64/display7seg.h index c066a8964eab..e74f046b41de 100644 --- a/include/asm-sparc64/display7seg.h +++ b/include/asm-sparc64/display7seg.h @@ -1,79 +1 @@ -/* - * - * display7seg - Driver interface for the 7-segment display - * present on Sun Microsystems CP1400 and CP1500 - * - * Copyright (c) 2000 Eric Brower - * - */ - -#ifndef __display7seg_h__ -#define __display7seg_h__ - -#define D7S_IOC 'p' - -#define D7SIOCRD _IOR(D7S_IOC, 0x45, int) /* Read device state */ -#define D7SIOCWR _IOW(D7S_IOC, 0x46, int) /* Write device state */ -#define D7SIOCTM _IO (D7S_IOC, 0x47) /* Translate mode (FLIP)*/ - -/* - * ioctl flag definitions - * - * POINT - Toggle decimal point (0=absent 1=present) - * ALARM - Toggle alarm LED (0=green 1=red) - * FLIP - Toggle inverted mode (0=normal 1=flipped) - * bits 0-4 - Character displayed (see definitions below) - * - * Display segments are defined as follows, - * subject to D7S_FLIP register state: - * - * a - * --- - * f| |b - * -g- - * e| |c - * --- - * d - */ - -#define D7S_POINT (1 << 7) /* Decimal point*/ -#define D7S_ALARM (1 << 6) /* Alarm LED */ -#define D7S_FLIP (1 << 5) /* Flip display */ - -#define D7S_0 0x00 /* Numerals 0-9 */ -#define D7S_1 0x01 -#define D7S_2 0x02 -#define D7S_3 0x03 -#define D7S_4 0x04 -#define D7S_5 0x05 -#define D7S_6 0x06 -#define D7S_7 0x07 -#define D7S_8 0x08 -#define D7S_9 0x09 -#define D7S_A 0x0A /* Letters A-F, H, L, P */ -#define D7S_B 0x0B -#define D7S_C 0x0C -#define D7S_D 0x0D -#define D7S_E 0x0E -#define D7S_F 0x0F -#define D7S_H 0x10 -#define D7S_E2 0x11 -#define D7S_L 0x12 -#define D7S_P 0x13 -#define D7S_SEGA 0x14 /* Individual segments */ -#define D7S_SEGB 0x15 -#define D7S_SEGC 0x16 -#define D7S_SEGD 0x17 -#define D7S_SEGE 0x18 -#define D7S_SEGF 0x19 -#define D7S_SEGG 0x1A -#define D7S_SEGABFG 0x1B /* Segment groupings */ -#define D7S_SEGCDEG 0x1C -#define D7S_SEGBCEF 0x1D -#define D7S_SEGADG 0x1E -#define D7S_BLANK 0x1F /* Clear all segments */ - -#define D7S_MIN_VAL 0x0 -#define D7S_MAX_VAL 0x1F - -#endif /* ifndef __display7seg_h__ */ +#include diff --git a/include/asm-sparc64/envctrl.h b/include/asm-sparc64/envctrl.h index a5668a082b14..a2cc0ca334ba 100644 --- a/include/asm-sparc64/envctrl.h +++ b/include/asm-sparc64/envctrl.h @@ -1,103 +1 @@ -/* - * - * envctrl.h: Definitions for access to the i2c environment - * monitoring on Ultrasparc systems. - * - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 2000 Vinh Truong (vinh.truong@eng.sun.com) - * VT - Add all ioctl commands and environment status definitions - * VT - Add application note - */ -#ifndef _SPARC64_ENVCTRL_H -#define _SPARC64_ENVCTRL_H 1 - -#include - -/* Application note: - * - * The driver supports 4 operations: open(), close(), ioctl(), read() - * The device name is /dev/envctrl. - * Below is sample usage: - * - * fd = open("/dev/envtrl", O_RDONLY); - * if (ioctl(fd, ENVCTRL_READ_SHUTDOWN_TEMPERATURE, 0) < 0) - * printf("error\n"); - * ret = read(fd, buf, 10); - * close(fd); - * - * Notice in the case of cpu voltage and temperature, the default is - * cpu0. If we need to know the info of cpu1, cpu2, cpu3, we need to - * pass in cpu number in ioctl() last parameter. For example, to - * get the voltage of cpu2: - * - * ioctlbuf[0] = 2; - * if (ioctl(fd, ENVCTRL_READ_CPU_VOLTAGE, ioctlbuf) < 0) - * printf("error\n"); - * ret = read(fd, buf, 10); - * - * All the return values are in ascii. So check read return value - * and do appropriate conversions in your application. - */ - -/* IOCTL commands */ - -/* Note: these commands reflect possible monitor features. - * Some boards choose to support some of the features only. - */ -#define ENVCTRL_RD_CPU_TEMPERATURE _IOR('p', 0x40, int) -#define ENVCTRL_RD_CPU_VOLTAGE _IOR('p', 0x41, int) -#define ENVCTRL_RD_FAN_STATUS _IOR('p', 0x42, int) -#define ENVCTRL_RD_WARNING_TEMPERATURE _IOR('p', 0x43, int) -#define ENVCTRL_RD_SHUTDOWN_TEMPERATURE _IOR('p', 0x44, int) -#define ENVCTRL_RD_VOLTAGE_STATUS _IOR('p', 0x45, int) -#define ENVCTRL_RD_SCSI_TEMPERATURE _IOR('p', 0x46, int) -#define ENVCTRL_RD_ETHERNET_TEMPERATURE _IOR('p', 0x47, int) -#define ENVCTRL_RD_MTHRBD_TEMPERATURE _IOR('p', 0x48, int) - -#define ENVCTRL_RD_GLOBALADDRESS _IOR('p', 0x49, int) - -/* Read return values for a voltage status request. */ -#define ENVCTRL_VOLTAGE_POWERSUPPLY_GOOD 0x01 -#define ENVCTRL_VOLTAGE_BAD 0x02 -#define ENVCTRL_POWERSUPPLY_BAD 0x03 -#define ENVCTRL_VOLTAGE_POWERSUPPLY_BAD 0x04 - -/* Read return values for a fan status request. - * A failure match means either the fan fails or - * the fan is not connected. Some boards have optional - * connectors to connect extra fans. - * - * There are maximum 8 monitor fans. Some are cpu fans - * some are system fans. The mask below only indicates - * fan by order number. - * Below is a sample application: - * - * if (ioctl(fd, ENVCTRL_READ_FAN_STATUS, 0) < 0) { - * printf("ioctl fan failed\n"); - * } - * if (read(fd, rslt, 1) <= 0) { - * printf("error or fan not monitored\n"); - * } else { - * if (rslt[0] == ENVCTRL_ALL_FANS_GOOD) { - * printf("all fans good\n"); - * } else if (rslt[0] == ENVCTRL_ALL_FANS_BAD) { - * printf("all fans bad\n"); - * } else { - * if (rslt[0] & ENVCTRL_FAN0_FAILURE_MASK) { - * printf("fan 0 failed or not connected\n"); - * } - * ...... - */ - -#define ENVCTRL_ALL_FANS_GOOD 0x00 -#define ENVCTRL_FAN0_FAILURE_MASK 0x01 -#define ENVCTRL_FAN1_FAILURE_MASK 0x02 -#define ENVCTRL_FAN2_FAILURE_MASK 0x04 -#define ENVCTRL_FAN3_FAILURE_MASK 0x08 -#define ENVCTRL_FAN4_FAILURE_MASK 0x10 -#define ENVCTRL_FAN5_FAILURE_MASK 0x20 -#define ENVCTRL_FAN6_FAILURE_MASK 0x40 -#define ENVCTRL_FAN7_FAILURE_MASK 0x80 -#define ENVCTRL_ALL_FANS_BAD 0xFF - -#endif /* !(_SPARC64_ENVCTRL_H) */ +#include diff --git a/include/asm-sparc64/psrcompat.h b/include/asm-sparc64/psrcompat.h index 44b6327dbbf5..587846f48358 100644 --- a/include/asm-sparc64/psrcompat.h +++ b/include/asm-sparc64/psrcompat.h @@ -1,45 +1 @@ -#ifndef _SPARC64_PSRCOMPAT_H -#define _SPARC64_PSRCOMPAT_H - -#include - -/* Old 32-bit PSR fields for the compatibility conversion code. */ -#define PSR_CWP 0x0000001f /* current window pointer */ -#define PSR_ET 0x00000020 /* enable traps field */ -#define PSR_PS 0x00000040 /* previous privilege level */ -#define PSR_S 0x00000080 /* current privilege level */ -#define PSR_PIL 0x00000f00 /* processor interrupt level */ -#define PSR_EF 0x00001000 /* enable floating point */ -#define PSR_EC 0x00002000 /* enable co-processor */ -#define PSR_SYSCALL 0x00004000 /* inside of a syscall */ -#define PSR_LE 0x00008000 /* SuperSparcII little-endian */ -#define PSR_ICC 0x00f00000 /* integer condition codes */ -#define PSR_C 0x00100000 /* carry bit */ -#define PSR_V 0x00200000 /* overflow bit */ -#define PSR_Z 0x00400000 /* zero bit */ -#define PSR_N 0x00800000 /* negative bit */ -#define PSR_VERS 0x0f000000 /* cpu-version field */ -#define PSR_IMPL 0xf0000000 /* cpu-implementation field */ - -#define PSR_V8PLUS 0xff000000 /* fake impl/ver, meaning a 64bit CPU is present */ -#define PSR_XCC 0x000f0000 /* if PSR_V8PLUS, this is %xcc */ - -static inline unsigned int tstate_to_psr(unsigned long tstate) -{ - return ((tstate & TSTATE_CWP) | - PSR_S | - ((tstate & TSTATE_ICC) >> 12) | - ((tstate & TSTATE_XCC) >> 20) | - ((tstate & TSTATE_SYSCALL) ? PSR_SYSCALL : 0) | - PSR_V8PLUS); -} - -static inline unsigned long psr_to_tstate_icc(unsigned int psr) -{ - unsigned long tstate = ((unsigned long)(psr & PSR_ICC)) << 12; - if ((psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS) - tstate |= ((unsigned long)(psr & PSR_XCC)) << 20; - return tstate; -} - -#endif /* !(_SPARC64_PSRCOMPAT_H) */ +#include diff --git a/include/asm-sparc64/pstate.h b/include/asm-sparc64/pstate.h index a26a53777bb0..3ccf0be25360 100644 --- a/include/asm-sparc64/pstate.h +++ b/include/asm-sparc64/pstate.h @@ -1,91 +1 @@ -#ifndef _SPARC64_PSTATE_H -#define _SPARC64_PSTATE_H - -#include - -/* The V9 PSTATE Register (with SpitFire extensions). - * - * ----------------------------------------------------------------------- - * | Resv | IG | MG | CLE | TLE | MM | RED | PEF | AM | PRIV | IE | AG | - * ----------------------------------------------------------------------- - * 63 12 11 10 9 8 7 6 5 4 3 2 1 0 - */ -#define PSTATE_IG _AC(0x0000000000000800,UL) /* Interrupt Globals. */ -#define PSTATE_MG _AC(0x0000000000000400,UL) /* MMU Globals. */ -#define PSTATE_CLE _AC(0x0000000000000200,UL) /* Current Little Endian.*/ -#define PSTATE_TLE _AC(0x0000000000000100,UL) /* Trap Little Endian. */ -#define PSTATE_MM _AC(0x00000000000000c0,UL) /* Memory Model. */ -#define PSTATE_TSO _AC(0x0000000000000000,UL) /* MM: TotalStoreOrder */ -#define PSTATE_PSO _AC(0x0000000000000040,UL) /* MM: PartialStoreOrder */ -#define PSTATE_RMO _AC(0x0000000000000080,UL) /* MM: RelaxedMemoryOrder*/ -#define PSTATE_RED _AC(0x0000000000000020,UL) /* Reset Error Debug. */ -#define PSTATE_PEF _AC(0x0000000000000010,UL) /* Floating Point Enable.*/ -#define PSTATE_AM _AC(0x0000000000000008,UL) /* Address Mask. */ -#define PSTATE_PRIV _AC(0x0000000000000004,UL) /* Privilege. */ -#define PSTATE_IE _AC(0x0000000000000002,UL) /* Interrupt Enable. */ -#define PSTATE_AG _AC(0x0000000000000001,UL) /* Alternate Globals. */ - -/* The V9 TSTATE Register (with SpitFire and Linux extensions). - * - * --------------------------------------------------------------------- - * | Resv | GL | CCR | ASI | %pil | PSTATE | Resv | CWP | - * --------------------------------------------------------------------- - * 63 43 42 40 39 32 31 24 23 20 19 8 7 5 4 0 - */ -#define TSTATE_GL _AC(0x0000070000000000,UL) /* Global reg level */ -#define TSTATE_CCR _AC(0x000000ff00000000,UL) /* Condition Codes. */ -#define TSTATE_XCC _AC(0x000000f000000000,UL) /* Condition Codes. */ -#define TSTATE_XNEG _AC(0x0000008000000000,UL) /* %xcc Negative. */ -#define TSTATE_XZERO _AC(0x0000004000000000,UL) /* %xcc Zero. */ -#define TSTATE_XOVFL _AC(0x0000002000000000,UL) /* %xcc Overflow. */ -#define TSTATE_XCARRY _AC(0x0000001000000000,UL) /* %xcc Carry. */ -#define TSTATE_ICC _AC(0x0000000f00000000,UL) /* Condition Codes. */ -#define TSTATE_INEG _AC(0x0000000800000000,UL) /* %icc Negative. */ -#define TSTATE_IZERO _AC(0x0000000400000000,UL) /* %icc Zero. */ -#define TSTATE_IOVFL _AC(0x0000000200000000,UL) /* %icc Overflow. */ -#define TSTATE_ICARRY _AC(0x0000000100000000,UL) /* %icc Carry. */ -#define TSTATE_ASI _AC(0x00000000ff000000,UL) /* AddrSpace ID. */ -#define TSTATE_PIL _AC(0x0000000000f00000,UL) /* %pil (Linux traps)*/ -#define TSTATE_PSTATE _AC(0x00000000000fff00,UL) /* PSTATE. */ -#define TSTATE_IG _AC(0x0000000000080000,UL) /* Interrupt Globals.*/ -#define TSTATE_MG _AC(0x0000000000040000,UL) /* MMU Globals. */ -#define TSTATE_CLE _AC(0x0000000000020000,UL) /* CurrLittleEndian. */ -#define TSTATE_TLE _AC(0x0000000000010000,UL) /* TrapLittleEndian. */ -#define TSTATE_MM _AC(0x000000000000c000,UL) /* Memory Model. */ -#define TSTATE_TSO _AC(0x0000000000000000,UL) /* MM: TSO */ -#define TSTATE_PSO _AC(0x0000000000004000,UL) /* MM: PSO */ -#define TSTATE_RMO _AC(0x0000000000008000,UL) /* MM: RMO */ -#define TSTATE_RED _AC(0x0000000000002000,UL) /* Reset Error Debug.*/ -#define TSTATE_PEF _AC(0x0000000000001000,UL) /* FPU Enable. */ -#define TSTATE_AM _AC(0x0000000000000800,UL) /* Address Mask. */ -#define TSTATE_PRIV _AC(0x0000000000000400,UL) /* Privilege. */ -#define TSTATE_IE _AC(0x0000000000000200,UL) /* Interrupt Enable. */ -#define TSTATE_AG _AC(0x0000000000000100,UL) /* Alternate Globals.*/ -#define TSTATE_SYSCALL _AC(0x0000000000000020,UL) /* in syscall trap */ -#define TSTATE_CWP _AC(0x000000000000001f,UL) /* Curr Win-Pointer. */ - -/* Floating-Point Registers State Register. - * - * -------------------------------- - * | Resv | FEF | DU | DL | - * -------------------------------- - * 63 3 2 1 0 - */ -#define FPRS_FEF _AC(0x0000000000000004,UL) /* FPU Enable. */ -#define FPRS_DU _AC(0x0000000000000002,UL) /* Dirty Upper. */ -#define FPRS_DL _AC(0x0000000000000001,UL) /* Dirty Lower. */ - -/* Version Register. - * - * ------------------------------------------------------ - * | MANUF | IMPL | MASK | Resv | MAXTL | Resv | MAXWIN | - * ------------------------------------------------------ - * 63 48 47 32 31 24 23 16 15 8 7 5 4 0 - */ -#define VERS_MANUF _AC(0xffff000000000000,UL) /* Manufacturer. */ -#define VERS_IMPL _AC(0x0000ffff00000000,UL) /* Implementation. */ -#define VERS_MASK _AC(0x00000000ff000000,UL) /* Mask Set Revision.*/ -#define VERS_MAXTL _AC(0x000000000000ff00,UL) /* Max Trap Level. */ -#define VERS_MAXWIN _AC(0x000000000000001f,UL) /* Max RegWindow Idx.*/ - -#endif /* !(_SPARC64_PSTATE_H) */ +#include diff --git a/include/asm-sparc64/uctx.h b/include/asm-sparc64/uctx.h index dc937c75ffdd..9e1b5794b07f 100644 --- a/include/asm-sparc64/uctx.h +++ b/include/asm-sparc64/uctx.h @@ -1,71 +1 @@ -/* - * uctx.h: Sparc64 {set,get}context() register state layouts. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __SPARC64_UCTX_H -#define __SPARC64_UCTX_H - -#define MC_TSTATE 0 -#define MC_PC 1 -#define MC_NPC 2 -#define MC_Y 3 -#define MC_G1 4 -#define MC_G2 5 -#define MC_G3 6 -#define MC_G4 7 -#define MC_G5 8 -#define MC_G6 9 -#define MC_G7 10 -#define MC_O0 11 -#define MC_O1 12 -#define MC_O2 13 -#define MC_O3 14 -#define MC_O4 15 -#define MC_O5 16 -#define MC_O6 17 -#define MC_O7 18 -#define MC_NGREG 19 - -typedef unsigned long mc_greg_t; -typedef mc_greg_t mc_gregset_t[MC_NGREG]; - -#define MC_MAXFPQ 16 -struct mc_fq { - unsigned long *mcfq_addr; - unsigned int mcfq_insn; -}; - -struct mc_fpu { - union { - unsigned int sregs[32]; - unsigned long dregs[32]; - long double qregs[16]; - } mcfpu_fregs; - unsigned long mcfpu_fsr; - unsigned long mcfpu_fprs; - unsigned long mcfpu_gsr; - struct mc_fq *mcfpu_fq; - unsigned char mcfpu_qcnt; - unsigned char mcfpu_qentsz; - unsigned char mcfpu_enab; -}; -typedef struct mc_fpu mc_fpu_t; - -typedef struct { - mc_gregset_t mc_gregs; - mc_greg_t mc_fp; - mc_greg_t mc_i7; - mc_fpu_t mc_fpregs; -} mcontext_t; - -struct ucontext { - struct ucontext *uc_link; - unsigned long uc_flags; - sigset_t uc_sigmask; - mcontext_t uc_mcontext; -}; -typedef struct ucontext ucontext_t; - -#endif /* __SPARC64_UCTX_H */ +#include diff --git a/include/asm-sparc64/utrap.h b/include/asm-sparc64/utrap.h index e49e5c46ad68..b030a41f1895 100644 --- a/include/asm-sparc64/utrap.h +++ b/include/asm-sparc64/utrap.h @@ -1,51 +1 @@ -/* - * include/asm-sparc64/utrap.h - * - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#ifndef __ASM_SPARC64_UTRAP_H -#define __ASM_SPARC64_UTRAP_H - -#define UT_INSTRUCTION_EXCEPTION 1 -#define UT_INSTRUCTION_ERROR 2 -#define UT_INSTRUCTION_PROTECTION 3 -#define UT_ILLTRAP_INSTRUCTION 4 -#define UT_ILLEGAL_INSTRUCTION 5 -#define UT_PRIVILEGED_OPCODE 6 -#define UT_FP_DISABLED 7 -#define UT_FP_EXCEPTION_IEEE_754 8 -#define UT_FP_EXCEPTION_OTHER 9 -#define UT_TAG_OVERVIEW 10 -#define UT_DIVISION_BY_ZERO 11 -#define UT_DATA_EXCEPTION 12 -#define UT_DATA_ERROR 13 -#define UT_DATA_PROTECTION 14 -#define UT_MEM_ADDRESS_NOT_ALIGNED 15 -#define UT_PRIVILEGED_ACTION 16 -#define UT_ASYNC_DATA_ERROR 17 -#define UT_TRAP_INSTRUCTION_16 18 -#define UT_TRAP_INSTRUCTION_17 19 -#define UT_TRAP_INSTRUCTION_18 20 -#define UT_TRAP_INSTRUCTION_19 21 -#define UT_TRAP_INSTRUCTION_20 22 -#define UT_TRAP_INSTRUCTION_21 23 -#define UT_TRAP_INSTRUCTION_22 24 -#define UT_TRAP_INSTRUCTION_23 25 -#define UT_TRAP_INSTRUCTION_24 26 -#define UT_TRAP_INSTRUCTION_25 27 -#define UT_TRAP_INSTRUCTION_26 28 -#define UT_TRAP_INSTRUCTION_27 29 -#define UT_TRAP_INSTRUCTION_28 30 -#define UT_TRAP_INSTRUCTION_29 31 -#define UT_TRAP_INSTRUCTION_30 32 -#define UT_TRAP_INSTRUCTION_31 33 - -#define UTH_NOCHANGE (-1) - -#ifndef __ASSEMBLY__ -typedef int utrap_entry_t; -typedef void *utrap_handler_t; -#endif /* __ASSEMBLY__ */ - -#endif /* !(__ASM_SPARC64_PROCESSOR_H) */ +#include diff --git a/include/asm-sparc64/watchdog.h b/include/asm-sparc64/watchdog.h index 5baf2d3919cf..b0f2857145f7 100644 --- a/include/asm-sparc64/watchdog.h +++ b/include/asm-sparc64/watchdog.h @@ -1,31 +1 @@ -/* - * - * watchdog - Driver interface for the hardware watchdog timers - * present on Sun Microsystems boardsets - * - * Copyright (c) 2000 Eric Brower - * - */ - -#ifndef _SPARC64_WATCHDOG_H -#define _SPARC64_WATCHDOG_H - -#include - -/* Solaris compatibility ioctls-- - * Ref. for standard linux watchdog ioctls - */ -#define WIOCSTART _IO (WATCHDOG_IOCTL_BASE, 10) /* Start Timer */ -#define WIOCSTOP _IO (WATCHDOG_IOCTL_BASE, 11) /* Stop Timer */ -#define WIOCGSTAT _IOR(WATCHDOG_IOCTL_BASE, 12, int)/* Get Timer Status */ - -/* Status flags from WIOCGSTAT ioctl - */ -#define WD_FREERUN 0x01 /* timer is running, interrupts disabled */ -#define WD_EXPIRED 0x02 /* timer has expired */ -#define WD_RUNNING 0x04 /* timer is running, interrupts enabled */ -#define WD_STOPPED 0x08 /* timer has not been started */ -#define WD_SERVICED 0x10 /* timer interrupt was serviced */ - -#endif /* ifndef _SPARC64_WATCHDOG_H */ - +#include -- cgit v1.2.3 From 278864fac79c0c18b0a7f15ca589a4f0845b2fbc Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 22:44:29 +0200 Subject: sparc: Merge asm-sparc{,64}/ioctl.h :$ diff -u include/asm-sparc/ioctl.h include/asm-sparc64/ioctl.h :-- include/asm-sparc/ioctl.h 2008-06-13 06:46:39.000000000 +0200 :++ include/asm-sparc64/ioctl.h 2008-06-13 08:46:29.000000000 +0200 :@@ -1,5 +1,5 @@ :-#ifndef _SPARC_IOCTL_H :-#define _SPARC_IOCTL_H :+#ifndef _SPARC64_IOCTL_H :+#define _SPARC64_IOCTL_H : :/* :* Our DIR and SIZE overlap in order to simulteneously provide :@@ -64,4 +64,4 @@ :#define IOCSIZE_MASK (_IOC_XSIZEMASK << _IOC_SIZESHIFT) :#define IOCSIZE_SHIFT (_IOC_SIZESHIFT) : :-#endif /* !(_SPARC_IOCTL_H) */ :+#endif /* !(_SPARC64_IOCTL_H) */ Signed-off-by: Sam Ravnborg --- include/asm-sparc64/ioctl.h | 68 +-------------------------------------------- 1 file changed, 1 insertion(+), 67 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/ioctl.h b/include/asm-sparc64/ioctl.h index d634c21b4724..18fc5623ff51 100644 --- a/include/asm-sparc64/ioctl.h +++ b/include/asm-sparc64/ioctl.h @@ -1,67 +1 @@ -#ifndef _SPARC64_IOCTL_H -#define _SPARC64_IOCTL_H - -/* - * Our DIR and SIZE overlap in order to simulteneously provide - * a non-zero _IOC_NONE (for binary compatibility) and - * 14 bits of size as on i386. Here's the layout: - * - * 0xE0000000 DIR - * 0x80000000 DIR = WRITE - * 0x40000000 DIR = READ - * 0x20000000 DIR = NONE - * 0x3FFF0000 SIZE (overlaps NONE bit) - * 0x0000FF00 TYPE - * 0x000000FF NR (CMD) - */ - -#define _IOC_NRBITS 8 -#define _IOC_TYPEBITS 8 -#define _IOC_SIZEBITS 13 /* Actually 14, see below. */ -#define _IOC_DIRBITS 3 - -#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) -#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) -#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) -#define _IOC_XSIZEMASK ((1 << (_IOC_SIZEBITS+1))-1) -#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1) - -#define _IOC_NRSHIFT 0 -#define _IOC_TYPESHIFT (_IOC_NRSHIFT + _IOC_NRBITS) -#define _IOC_SIZESHIFT (_IOC_TYPESHIFT + _IOC_TYPEBITS) -#define _IOC_DIRSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS) - -#define _IOC_NONE 1U -#define _IOC_READ 2U -#define _IOC_WRITE 4U - -#define _IOC(dir,type,nr,size) \ - (((dir) << _IOC_DIRSHIFT) | \ - ((type) << _IOC_TYPESHIFT) | \ - ((nr) << _IOC_NRSHIFT) | \ - ((size) << _IOC_SIZESHIFT)) - -#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) -#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size)) -#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size)) -#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) - -/* Used to decode ioctl numbers in drivers despite the leading underscore... */ -#define _IOC_DIR(nr) \ - ( (((((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) != 0)? \ - (((nr) >> _IOC_DIRSHIFT) & (_IOC_WRITE|_IOC_READ)): \ - (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) ) -#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK) -#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK) -#define _IOC_SIZE(nr) \ - ((((((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) == 0)? \ - 0: (((nr) >> _IOC_SIZESHIFT) & _IOC_XSIZEMASK)) - -/* ...and for the PCMCIA and sound. */ -#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT) -#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT) -#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT) -#define IOCSIZE_MASK (_IOC_XSIZEMASK << _IOC_SIZESHIFT) -#define IOCSIZE_SHIFT (_IOC_SIZESHIFT) - -#endif /* !(_SPARC64_IOCTL_H) */ +#include -- cgit v1.2.3 From f1ba03cac28edc4d68cca2475d50f463afcd2955 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 22:45:50 +0200 Subject: sparc: Merge asm-sparc{,64}/ioctls.h Trivial differenses in comments - used the version from sparc64 :$ diff -u include/asm-sparc/ioctls.h include/asm-sparc64/ioctls.h :-- include/asm-sparc/ioctls.h 2008-06-13 08:46:29.000000000 +0200 :++ include/asm-sparc64/ioctls.h 2008-06-13 08:46:29.000000000 +0200 :@@ -1,5 +1,5 @@ :-#ifndef _ASM_SPARC_IOCTLS_H :-#define _ASM_SPARC_IOCTLS_H :+#ifndef _ASM_SPARC64_IOCTLS_H :+#define _ASM_SPARC64_IOCTLS_H : : #include : :@@ -22,7 +22,7 @@ : : /* Note that all the ioctls that are not available in Linux have a : * double underscore on the front to: a) avoid some programs to :- * thing we support some ioctls under Linux (autoconfiguration stuff) :+ * think we support some ioctls under Linux (autoconfiguration stuff) : */ : /* Little t */ : #define TIOCGETD _IOR('t', 0, int) :@@ -110,7 +110,7 @@ : #define TIOCSERGETLSR 0x5459 /* Get line status register */ : #define TIOCSERGETMULTI 0x545A /* Get multiport config */ : #define TIOCSERSETMULTI 0x545B /* Set multiport config */ :-#define TIOCMIWAIT 0x545C /* Wait input */ :+#define TIOCMIWAIT 0x545C /* Wait for change on serial input line(s) */ : #define TIOCGICOUNT 0x545D /* Read serial port inline interrupt counts */ : : /* Kernel definitions */ :@@ -133,4 +133,4 @@ : #define TIOCPKT_NOSTOP 16 : #define TIOCPKT_DOSTOP 32 : :-#endif /* !(_ASM_SPARC_IOCTLS_H) */ :+#endif /* !(_ASM_SPARC64_IOCTLS_H) */ Signed-off-by: Sam Ravnborg --- include/asm-sparc/ioctls.h | 4 +- include/asm-sparc64/ioctls.h | 137 +------------------------------------------ 2 files changed, 3 insertions(+), 138 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/ioctls.h b/include/asm-sparc/ioctls.h index 3f4d0087b6a3..1fe6855c5c18 100644 --- a/include/asm-sparc/ioctls.h +++ b/include/asm-sparc/ioctls.h @@ -22,7 +22,7 @@ /* Note that all the ioctls that are not available in Linux have a * double underscore on the front to: a) avoid some programs to - * thing we support some ioctls under Linux (autoconfiguration stuff) + * think we support some ioctls under Linux (autoconfiguration stuff) */ /* Little t */ #define TIOCGETD _IOR('t', 0, int) @@ -110,7 +110,7 @@ #define TIOCSERGETLSR 0x5459 /* Get line status register */ #define TIOCSERGETMULTI 0x545A /* Get multiport config */ #define TIOCSERSETMULTI 0x545B /* Set multiport config */ -#define TIOCMIWAIT 0x545C /* Wait input */ +#define TIOCMIWAIT 0x545C /* Wait for change on serial input line(s) */ #define TIOCGICOUNT 0x545D /* Read serial port inline interrupt counts */ /* Kernel definitions */ diff --git a/include/asm-sparc64/ioctls.h b/include/asm-sparc64/ioctls.h index 94d1b75e512b..dcd5540ec103 100644 --- a/include/asm-sparc64/ioctls.h +++ b/include/asm-sparc64/ioctls.h @@ -1,136 +1 @@ -#ifndef _ASM_SPARC64_IOCTLS_H -#define _ASM_SPARC64_IOCTLS_H - -#include - -/* Big T */ -#define TCGETA _IOR('T', 1, struct termio) -#define TCSETA _IOW('T', 2, struct termio) -#define TCSETAW _IOW('T', 3, struct termio) -#define TCSETAF _IOW('T', 4, struct termio) -#define TCSBRK _IO('T', 5) -#define TCXONC _IO('T', 6) -#define TCFLSH _IO('T', 7) -#define TCGETS _IOR('T', 8, struct termios) -#define TCSETS _IOW('T', 9, struct termios) -#define TCSETSW _IOW('T', 10, struct termios) -#define TCSETSF _IOW('T', 11, struct termios) -#define TCGETS2 _IOR('T', 12, struct termios2) -#define TCSETS2 _IOW('T', 13, struct termios2) -#define TCSETSW2 _IOW('T', 14, struct termios2) -#define TCSETSF2 _IOW('T', 15, struct termios2) - -/* Note that all the ioctls that are not available in Linux have a - * double underscore on the front to: a) avoid some programs to - * think we support some ioctls under Linux (autoconfiguration stuff) - */ -/* Little t */ -#define TIOCGETD _IOR('t', 0, int) -#define TIOCSETD _IOW('t', 1, int) -#define __TIOCHPCL _IO('t', 2) /* SunOS Specific */ -#define __TIOCMODG _IOR('t', 3, int) /* SunOS Specific */ -#define __TIOCMODS _IOW('t', 4, int) /* SunOS Specific */ -#define __TIOCGETP _IOR('t', 8, struct sgttyb) /* SunOS Specific */ -#define __TIOCSETP _IOW('t', 9, struct sgttyb) /* SunOS Specific */ -#define __TIOCSETN _IOW('t', 10, struct sgttyb) /* SunOS Specific */ -#define TIOCEXCL _IO('t', 13) -#define TIOCNXCL _IO('t', 14) -#define __TIOCFLUSH _IOW('t', 16, int) /* SunOS Specific */ -#define __TIOCSETC _IOW('t', 17, struct tchars) /* SunOS Specific */ -#define __TIOCGETC _IOR('t', 18, struct tchars) /* SunOS Specific */ -#define __TIOCTCNTL _IOW('t', 32, int) /* SunOS Specific */ -#define __TIOCSIGNAL _IOW('t', 33, int) /* SunOS Specific */ -#define __TIOCSETX _IOW('t', 34, int) /* SunOS Specific */ -#define __TIOCGETX _IOR('t', 35, int) /* SunOS Specific */ -#define TIOCCONS _IO('t', 36) -#define TIOCGSOFTCAR _IOR('t', 100, int) -#define TIOCSSOFTCAR _IOW('t', 101, int) -#define __TIOCUCNTL _IOW('t', 102, int) /* SunOS Specific */ -#define TIOCSWINSZ _IOW('t', 103, struct winsize) -#define TIOCGWINSZ _IOR('t', 104, struct winsize) -#define __TIOCREMOTE _IOW('t', 105, int) /* SunOS Specific */ -#define TIOCMGET _IOR('t', 106, int) -#define TIOCMBIC _IOW('t', 107, int) -#define TIOCMBIS _IOW('t', 108, int) -#define TIOCMSET _IOW('t', 109, int) -#define TIOCSTART _IO('t', 110) -#define TIOCSTOP _IO('t', 111) -#define TIOCPKT _IOW('t', 112, int) -#define TIOCNOTTY _IO('t', 113) -#define TIOCSTI _IOW('t', 114, char) -#define TIOCOUTQ _IOR('t', 115, int) -#define __TIOCGLTC _IOR('t', 116, struct ltchars) /* SunOS Specific */ -#define __TIOCSLTC _IOW('t', 117, struct ltchars) /* SunOS Specific */ -/* 118 is the non-posix setpgrp tty ioctl */ -/* 119 is the non-posix getpgrp tty ioctl */ -#define __TIOCCDTR _IO('t', 120) /* SunOS Specific */ -#define __TIOCSDTR _IO('t', 121) /* SunOS Specific */ -#define TIOCCBRK _IO('t', 122) -#define TIOCSBRK _IO('t', 123) -#define __TIOCLGET _IOW('t', 124, int) /* SunOS Specific */ -#define __TIOCLSET _IOW('t', 125, int) /* SunOS Specific */ -#define __TIOCLBIC _IOW('t', 126, int) /* SunOS Specific */ -#define __TIOCLBIS _IOW('t', 127, int) /* SunOS Specific */ -#define __TIOCISPACE _IOR('t', 128, int) /* SunOS Specific */ -#define __TIOCISIZE _IOR('t', 129, int) /* SunOS Specific */ -#define TIOCSPGRP _IOW('t', 130, int) -#define TIOCGPGRP _IOR('t', 131, int) -#define TIOCSCTTY _IO('t', 132) -#define TIOCGSID _IOR('t', 133, int) -/* Get minor device of a pty master's FD -- Solaris equiv is ISPTM */ -#define TIOCGPTN _IOR('t', 134, unsigned int) /* Get Pty Number */ -#define TIOCSPTLCK _IOW('t', 135, int) /* Lock/unlock PTY */ - -/* Little f */ -#define FIOCLEX _IO('f', 1) -#define FIONCLEX _IO('f', 2) -#define FIOASYNC _IOW('f', 125, int) -#define FIONBIO _IOW('f', 126, int) -#define FIONREAD _IOR('f', 127, int) -#define TIOCINQ FIONREAD -#define FIOQSIZE _IOR('f', 128, loff_t) - -/* SCARY Rutgers local SunOS kernel hackery, perhaps I will support it - * someday. This is completely bogus, I know... - */ -#define __TCGETSTAT _IO('T', 200) /* Rutgers specific */ -#define __TCSETSTAT _IO('T', 201) /* Rutgers specific */ - -/* Linux specific, no SunOS equivalent. */ -#define TIOCLINUX 0x541C -#define TIOCGSERIAL 0x541E -#define TIOCSSERIAL 0x541F -#define TCSBRKP 0x5425 -#define TIOCSERCONFIG 0x5453 -#define TIOCSERGWILD 0x5454 -#define TIOCSERSWILD 0x5455 -#define TIOCGLCKTRMIOS 0x5456 -#define TIOCSLCKTRMIOS 0x5457 -#define TIOCSERGSTRUCT 0x5458 /* For debugging only */ -#define TIOCSERGETLSR 0x5459 /* Get line status register */ -#define TIOCSERGETMULTI 0x545A /* Get multiport config */ -#define TIOCSERSETMULTI 0x545B /* Set multiport config */ -#define TIOCMIWAIT 0x545C /* Wait for change on serial input line(s) */ -#define TIOCGICOUNT 0x545D /* Read serial port inline interrupt counts */ - -/* Kernel definitions */ -#ifdef __KERNEL__ -#define TIOCGETC __TIOCGETC -#define TIOCGETP __TIOCGETP -#define TIOCGLTC __TIOCGLTC -#define TIOCSLTC __TIOCSLTC -#define TIOCSETP __TIOCSETP -#define TIOCSETN __TIOCSETN -#define TIOCSETC __TIOCSETC -#endif - -/* Used for packet mode */ -#define TIOCPKT_DATA 0 -#define TIOCPKT_FLUSHREAD 1 -#define TIOCPKT_FLUSHWRITE 2 -#define TIOCPKT_STOP 4 -#define TIOCPKT_START 8 -#define TIOCPKT_NOSTOP 16 -#define TIOCPKT_DOSTOP 32 - -#endif /* !(_ASM_SPARC64_IOCTLS_H) */ +#include -- cgit v1.2.3 From 4835bd988e58150c0a6e2d3e13e319a56ed821dc Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 23:07:26 +0200 Subject: sparc: Merge asm-sparc{,64}/param.h :$ diff -u include/asm-sparc/param.h include/asm-sparc64/param.h :-- include/asm-sparc/param.h 2008-06-13 06:46:39.000000000 +0200 :++ include/asm-sparc64/param.h 2008-06-13 06:42:07.000000000 +0200 :@@ -1,5 +1,6 @@ :-#ifndef _ASMSPARC_PARAM_H :-#define _ASMSPARC_PARAM_H :+#ifndef _ASMSPARC64_PARAM_H :+#define _ASMSPARC64_PARAM_H :+ : : #ifdef __KERNEL__ : # define HZ CONFIG_HZ /* Internal kernel timer frequency */ :@@ -19,4 +20,4 @@ : : #define MAXHOSTNAMELEN 64 /* max length of hostname */ : :-#endif :+#endif /* _ASMSPARC64_PARAM_H */ Signed-off-by: Sam Ravnborg --- include/asm-sparc64/param.h | 24 +----------------------- 1 file changed, 1 insertion(+), 23 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/param.h b/include/asm-sparc64/param.h index f0125cf5a9df..40c6dc110822 100644 --- a/include/asm-sparc64/param.h +++ b/include/asm-sparc64/param.h @@ -1,23 +1 @@ -#ifndef _ASMSPARC64_PARAM_H -#define _ASMSPARC64_PARAM_H - - -#ifdef __KERNEL__ -# define HZ CONFIG_HZ /* Internal kernel timer frequency */ -# define USER_HZ 100 /* .. some user interfaces are in "ticks" */ -# define CLOCKS_PER_SEC (USER_HZ) -#endif - -#ifndef HZ -#define HZ 100 -#endif - -#define EXEC_PAGESIZE 8192 /* Thanks for sun4's we carry baggage... */ - -#ifndef NOGROUP -#define NOGROUP (-1) -#endif - -#define MAXHOSTNAMELEN 64 /* max length of hostname */ - -#endif /* _ASMSPARC64_PARAM_H */ +#include -- cgit v1.2.3 From 62e612f0abb33c99c55ea3d04626f6799a1cdca9 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 23:08:51 +0200 Subject: sparc: Merge asm-sparc{,64}/poll.h :$ diff -u include/asm-sparc/poll.h include/asm-sparc64/poll.h :-- include/asm-sparc/poll.h 2008-06-13 06:42:07.000000000 +0200 :++ include/asm-sparc64/poll.h 2008-06-13 06:42:07.000000000 +0200 :@@ -1,5 +1,5 @@ :-#ifndef __SPARC_POLL_H :-#define __SPARC_POLL_H :+#ifndef __SPARC64_POLL_H :+#define __SPARC64_POLL_H : : #define POLLWRNORM POLLOUT : #define POLLWRBAND 256 Signed-off-by: Sam Ravnborg --- include/asm-sparc64/poll.h | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/poll.h b/include/asm-sparc64/poll.h index ebeeb3816c40..8e2f31b4641a 100644 --- a/include/asm-sparc64/poll.h +++ b/include/asm-sparc64/poll.h @@ -1,12 +1 @@ -#ifndef __SPARC64_POLL_H -#define __SPARC64_POLL_H - -#define POLLWRNORM POLLOUT -#define POLLWRBAND 256 -#define POLLMSG 512 -#define POLLREMOVE 1024 -#define POLLRDHUP 2048 - -#include - -#endif +#include -- cgit v1.2.3 From c8b8be5427a48c1a96dc0cf98ba772aedcda7e77 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 23:49:02 +0200 Subject: sparc: Merge asm-sparc{,64}/socket.h :$ diff -u include/asm-sparc/socket.h include/asm-sparc64/socket.h :-- include/asm-sparc/socket.h 2008-06-13 06:46:39.000000000 +0200 :++ include/asm-sparc64/socket.h 2008-06-13 06:46:39.000000000 +0200 :@@ -48,11 +48,10 @@ : #define SO_TIMESTAMPNS 0x0021 : #define SCM_TIMESTAMPNS SO_TIMESTAMPNS : :-#define SO_MARK 0x0022 :- : /* Security levels - as per NRL IPv6 - don't actually do anything */ : #define SO_SECURITY_AUTHENTICATION 0x5001 : #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 : #define SO_SECURITY_ENCRYPTION_NETWORK 0x5004 : :+#define SO_MARK 0x0022 : #endif /* _ASM_SOCKET_H */ Signed-off-by: Sam Ravnborg --- include/asm-sparc64/socket.h | 58 +------------------------------------------- 1 file changed, 1 insertion(+), 57 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/socket.h b/include/asm-sparc64/socket.h index 5af688f56716..13e0d5d94bb3 100644 --- a/include/asm-sparc64/socket.h +++ b/include/asm-sparc64/socket.h @@ -1,57 +1 @@ -#ifndef _ASM_SOCKET_H -#define _ASM_SOCKET_H - -#include - -/* For setsockopt(2) */ -#define SOL_SOCKET 0xffff - -#define SO_DEBUG 0x0001 -#define SO_PASSCRED 0x0002 -#define SO_REUSEADDR 0x0004 -#define SO_KEEPALIVE 0x0008 -#define SO_DONTROUTE 0x0010 -#define SO_BROADCAST 0x0020 -#define SO_PEERCRED 0x0040 -#define SO_LINGER 0x0080 -#define SO_OOBINLINE 0x0100 -/* To add :#define SO_REUSEPORT 0x0200 */ -#define SO_BSDCOMPAT 0x0400 -#define SO_RCVLOWAT 0x0800 -#define SO_SNDLOWAT 0x1000 -#define SO_RCVTIMEO 0x2000 -#define SO_SNDTIMEO 0x4000 -#define SO_ACCEPTCONN 0x8000 - -#define SO_SNDBUF 0x1001 -#define SO_RCVBUF 0x1002 -#define SO_SNDBUFFORCE 0x100a -#define SO_RCVBUFFORCE 0x100b -#define SO_ERROR 0x1007 -#define SO_TYPE 0x1008 - -/* Linux specific, keep the same. */ -#define SO_NO_CHECK 0x000b -#define SO_PRIORITY 0x000c - -#define SO_BINDTODEVICE 0x000d - -#define SO_ATTACH_FILTER 0x001a -#define SO_DETACH_FILTER 0x001b - -#define SO_PEERNAME 0x001c -#define SO_TIMESTAMP 0x001d -#define SCM_TIMESTAMP SO_TIMESTAMP - -#define SO_PEERSEC 0x001e -#define SO_PASSSEC 0x001f -#define SO_TIMESTAMPNS 0x0021 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -/* Security levels - as per NRL IPv6 - don't actually do anything */ -#define SO_SECURITY_AUTHENTICATION 0x5001 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 -#define SO_SECURITY_ENCRYPTION_NETWORK 0x5004 - -#define SO_MARK 0x0022 -#endif /* _ASM_SOCKET_H */ +#include -- cgit v1.2.3 From e880e8701cd5a76bc5b9e67e48ab3b21963fbe0a Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 23:50:10 +0200 Subject: sparc: Merge asm-sparc{,64}/sockios.h :$ diff -u include/asm-sparc/sockios.h include/asm-sparc64/sockios.h :-- include/asm-sparc/sockios.h 2008-06-13 06:42:07.000000000 +0200 :++ include/asm-sparc64/sockios.h 2008-06-13 06:42:07.000000000 +0200 :@@ -1,5 +1,5 @@ :-#ifndef _ASM_SPARC_SOCKIOS_H :-#define _ASM_SPARC_SOCKIOS_H :+#ifndef _ASM_SPARC64_SOCKIOS_H :+#define _ASM_SPARC64_SOCKIOS_H : : /* Socket-level I/O control calls. */ : #define FIOSETOWN 0x8901 :@@ -10,5 +10,5 @@ : #define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ : #define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ : :-#endif /* !(_ASM_SPARC_SOCKIOS_H) */ :+#endif /* !(_ASM_SPARC64_SOCKIOS_H) */ Signed-off-by: Sam Ravnborg --- include/asm-sparc64/sockios.h | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/sockios.h b/include/asm-sparc64/sockios.h index c7d9900638d0..2cb4b641482c 100644 --- a/include/asm-sparc64/sockios.h +++ b/include/asm-sparc64/sockios.h @@ -1,14 +1 @@ -#ifndef _ASM_SPARC64_SOCKIOS_H -#define _ASM_SPARC64_SOCKIOS_H - -/* Socket-level I/O control calls. */ -#define FIOSETOWN 0x8901 -#define SIOCSPGRP 0x8902 -#define FIOGETOWN 0x8903 -#define SIOCGPGRP 0x8904 -#define SIOCATMARK 0x8905 -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ - -#endif /* !(_ASM_SPARC64_SOCKIOS_H) */ - +#include -- cgit v1.2.3 From 6d1f4b88ee73c9a073277dd1529fbbce356e04e8 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 22:37:04 +0200 Subject: sparc: Merge asm-sparc{,64}/fcntl.h The definition of O_NDELAY differed - the rest was equal :$ diff -u include/asm-sparc/fcntl.h include/asm-sparc64/fcntl.h :-- include/asm-sparc/fcntl.h 2008-06-13 06:46:39.000000000 +0200 :++ include/asm-sparc64/fcntl.h 2008-06-13 06:46:39.000000000 +0200 :@@ -1,8 +1,9 @@ :-#ifndef _SPARC_FCNTL_H :-#define _SPARC_FCNTL_H :+#ifndef _SPARC64_FCNTL_H :+#define _SPARC64_FCNTL_H : : /* open/fcntl - O_SYNC is only implemented on blocks devices and on files : located on an ext2 file system */ :+#define O_NDELAY 0x0004 : #define O_APPEND 0x0008 : #define FASYNC 0x0040 /* fcntl, for BSD compatibility */ : #define O_CREAT 0x0200 /* not fcntl */ :@@ -10,7 +11,6 @@ : #define O_EXCL 0x0800 /* not fcntl */ : #define O_SYNC 0x2000 : #define O_NONBLOCK 0x4000 :-#define O_NDELAY (0x0004 | O_NONBLOCK) : #define O_NOCTTY 0x8000 /* not fcntl */ : #define O_LARGEFILE 0x40000 : #define O_DIRECT 0x100000 /* direct disk access hint */ :@@ -29,8 +29,7 @@ : #define F_UNLCK 3 : : #define __ARCH_FLOCK_PAD short __unused; :-#define __ARCH_FLOCK64_PAD short __unused; : : #include : :-#endif :+#endif /* !(_SPARC64_FCNTL_H) */ Signed-off-by: Sam Ravnborg --- include/asm-sparc/fcntl.h | 4 ++++ include/asm-sparc64/fcntl.h | 36 +----------------------------------- 2 files changed, 5 insertions(+), 35 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/fcntl.h b/include/asm-sparc/fcntl.h index 07bd2d80257f..d4d9c9d852c3 100644 --- a/include/asm-sparc/fcntl.h +++ b/include/asm-sparc/fcntl.h @@ -10,7 +10,11 @@ #define O_EXCL 0x0800 /* not fcntl */ #define O_SYNC 0x2000 #define O_NONBLOCK 0x4000 +#if defined(__sparc__) && defined(__arch64__) +#define O_NDELAY 0x0004 +#else #define O_NDELAY (0x0004 | O_NONBLOCK) +#endif #define O_NOCTTY 0x8000 /* not fcntl */ #define O_LARGEFILE 0x40000 #define O_DIRECT 0x100000 /* direct disk access hint */ diff --git a/include/asm-sparc64/fcntl.h b/include/asm-sparc64/fcntl.h index 8a09ca7aa2f2..8b1beae48cd1 100644 --- a/include/asm-sparc64/fcntl.h +++ b/include/asm-sparc64/fcntl.h @@ -1,35 +1 @@ -#ifndef _SPARC64_FCNTL_H -#define _SPARC64_FCNTL_H - -/* open/fcntl - O_SYNC is only implemented on blocks devices and on files - located on an ext2 file system */ -#define O_NDELAY 0x0004 -#define O_APPEND 0x0008 -#define FASYNC 0x0040 /* fcntl, for BSD compatibility */ -#define O_CREAT 0x0200 /* not fcntl */ -#define O_TRUNC 0x0400 /* not fcntl */ -#define O_EXCL 0x0800 /* not fcntl */ -#define O_SYNC 0x2000 -#define O_NONBLOCK 0x4000 -#define O_NOCTTY 0x8000 /* not fcntl */ -#define O_LARGEFILE 0x40000 -#define O_DIRECT 0x100000 /* direct disk access hint */ -#define O_NOATIME 0x200000 -#define O_CLOEXEC 0x400000 - -#define F_GETOWN 5 /* for sockets. */ -#define F_SETOWN 6 /* for sockets. */ -#define F_GETLK 7 -#define F_SETLK 8 -#define F_SETLKW 9 - -/* for posix fcntl() and lockf() */ -#define F_RDLCK 1 -#define F_WRLCK 2 -#define F_UNLCK 3 - -#define __ARCH_FLOCK_PAD short __unused; - -#include - -#endif /* !(_SPARC64_FCNTL_H) */ +#include -- cgit v1.2.3 From 100b10d752bafafda2a508235b7df6718e42bd76 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 23:04:06 +0200 Subject: sparc: Merge asm-sparc{,64}/msgbuf.h Padding from 32 bit sparc kept using preprocessor magic :$ diff -u include/asm-sparc/msgbuf.h include/asm-sparc64/msgbuf.h :-- include/asm-sparc/msgbuf.h 2008-06-13 06:42:07.000000000 +0200 :++ include/asm-sparc64/msgbuf.h 2008-06-13 06:42:07.000000000 +0200 :@@ -7,17 +7,13 @@ : * between kernel and user space. : * : * Pad space is left for: :- * - 64-bit time_t to solve y2038 problem :- * - 2 miscellaneous 32-bit values :+ * - 2 miscellaneous 64-bit values : */ : : struct msqid64_ds { : struct ipc64_perm msg_perm; :- unsigned int __pad1; : __kernel_time_t msg_stime; /* last msgsnd time */ :- unsigned int __pad2; : __kernel_time_t msg_rtime; /* last msgrcv time */ :- unsigned int __pad3; : __kernel_time_t msg_ctime; /* last change time */ : unsigned long msg_cbytes; /* current number of bytes on queue */ Signed-off-by: Sam Ravnborg --- include/asm-sparc/msgbuf.h | 23 +++++++++++++++-------- include/asm-sparc64/msgbuf.h | 28 +--------------------------- 2 files changed, 16 insertions(+), 35 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/msgbuf.h b/include/asm-sparc/msgbuf.h index 8cec9ad0b825..efc7cbe9788f 100644 --- a/include/asm-sparc/msgbuf.h +++ b/include/asm-sparc/msgbuf.h @@ -1,7 +1,7 @@ -#ifndef _SPARC64_MSGBUF_H -#define _SPARC64_MSGBUF_H +#ifndef _SPARC_MSGBUF_H +#define _SPARC_MSGBUF_H -/* +/* * The msqid64_ds structure for sparc64 architecture. * Note extra padding because this structure is passed back and forth * between kernel and user space. @@ -11,13 +11,20 @@ * - 2 miscellaneous 32-bit values */ +#if defined(__sparc__) && defined(__arch64__) +# define PADDING(x) +#else +# define PADDING(x) unsigned int x; +#endif + + struct msqid64_ds { struct ipc64_perm msg_perm; - unsigned int __pad1; + PADDING(__pad1) __kernel_time_t msg_stime; /* last msgsnd time */ - unsigned int __pad2; + PADDING(__pad2) __kernel_time_t msg_rtime; /* last msgrcv time */ - unsigned int __pad3; + PADDING(__pad3) __kernel_time_t msg_ctime; /* last change time */ unsigned long msg_cbytes; /* current number of bytes on queue */ unsigned long msg_qnum; /* number of messages in queue */ @@ -27,5 +34,5 @@ struct msqid64_ds { unsigned long __unused1; unsigned long __unused2; }; - -#endif /* _SPARC64_MSGBUF_H */ +#undef PADDING +#endif /* _SPARC_MSGBUF_H */ diff --git a/include/asm-sparc64/msgbuf.h b/include/asm-sparc64/msgbuf.h index 55c101bd0e7d..5b33cc9d9bfb 100644 --- a/include/asm-sparc64/msgbuf.h +++ b/include/asm-sparc64/msgbuf.h @@ -1,27 +1 @@ -#ifndef _SPARC64_MSGBUF_H -#define _SPARC64_MSGBUF_H - -/* - * The msqid64_ds structure for sparc64 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ - __kernel_time_t msg_rtime; /* last msgrcv time */ - __kernel_time_t msg_ctime; /* last change time */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _SPARC64_MSGBUF_H */ +#include -- cgit v1.2.3 From fcb07081f209d3d9c7662ba6a097b254e76f71ee Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 23:39:32 +0200 Subject: sparc: Merge asm-sparc{,64}/sembuf.h Padding in the sembuf structure made conditional as only 32 bit sparc did so. :$ diff -u include/asm-sparc/sembuf.h include/asm-sparc64/sembuf.h :-- include/asm-sparc/sembuf.h 2008-06-13 06:42:07.000000000 +0200 :++ include/asm-sparc64/sembuf.h 2008-06-13 06:42:07.000000000 +0200 :@@ -1,21 +1,18 @@ :-#ifndef _SPARC_SEMBUF_H :-#define _SPARC_SEMBUF_H :+#ifndef _SPARC64_SEMBUF_H :+#define _SPARC64_SEMBUF_H : : /* :- * The semid64_ds structure for sparc architecture. :+ * The semid64_ds structure for sparc64 architecture. : * Note extra padding because this structure is passed back and forth : * between kernel and user space. : * : * Pad space is left for: :- * - 64-bit time_t to solve y2038 problem :- * - 2 miscellaneous 32-bit values :+ * - 2 miscellaneous 64-bit values : */ : : struct semid64_ds { : struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ :- unsigned int __pad1; : __kernel_time_t sem_otime; /* last semop time */ :- unsigned int __pad2; : __kernel_time_t sem_ctime; /* last change time */ : unsigned long sem_nsems; /* no. of semaphores in array */ : unsigned long __unused1; Signed-off-by: Sam Ravnborg --- include/asm-sparc/sembuf.h | 12 +++++++++--- include/asm-sparc64/sembuf.h | 23 +---------------------- 2 files changed, 10 insertions(+), 25 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/sembuf.h b/include/asm-sparc/sembuf.h index a79c4bb3c08a..faee1be08d67 100644 --- a/include/asm-sparc/sembuf.h +++ b/include/asm-sparc/sembuf.h @@ -1,7 +1,7 @@ #ifndef _SPARC_SEMBUF_H #define _SPARC_SEMBUF_H -/* +/* * The semid64_ds structure for sparc architecture. * Note extra padding because this structure is passed back and forth * between kernel and user space. @@ -10,16 +10,22 @@ * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ +#if defined(__sparc__) && defined(__arch64__) +# define PADDING(x) +#else +# define PADDING(x) unsigned int x; +#endif struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - unsigned int __pad1; + PADDING(__pad1) __kernel_time_t sem_otime; /* last semop time */ - unsigned int __pad2; + PADDING(__pad2) __kernel_time_t sem_ctime; /* last change time */ unsigned long sem_nsems; /* no. of semaphores in array */ unsigned long __unused1; unsigned long __unused2; }; +#undef PADDING #endif /* _SPARC64_SEMBUF_H */ diff --git a/include/asm-sparc64/sembuf.h b/include/asm-sparc64/sembuf.h index 99f04e4e288c..c55b95214136 100644 --- a/include/asm-sparc64/sembuf.h +++ b/include/asm-sparc64/sembuf.h @@ -1,22 +1 @@ -#ifndef _SPARC64_SEMBUF_H -#define _SPARC64_SEMBUF_H - -/* - * The semid64_ds structure for sparc64 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ - __kernel_time_t sem_ctime; /* last change time */ - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _SPARC64_SEMBUF_H */ +#include -- cgit v1.2.3 From 2d1419624c2e0173aee138372dd1eccb5d5fd270 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 23:46:22 +0200 Subject: sparc: Merge asm-sparc{,64}/shmbuf.h Padding in the shmbuf structure made conditional as only 32 bit sparc did so. :$ diff -u include/asm-sparc/shmbuf.h include/asm-sparc64/shmbuf.h :-- include/asm-sparc/shmbuf.h 2008-06-13 06:42:07.000000000 +0200 :++ include/asm-sparc64/shmbuf.h 2008-06-13 06:42:07.000000000 +0200 :@@ -1,23 +1,19 @@ :-#ifndef _SPARC_SHMBUF_H :-#define _SPARC_SHMBUF_H :+#ifndef _SPARC64_SHMBUF_H :+#define _SPARC64_SHMBUF_H : : /* :- * The shmid64_ds structure for sparc architecture. :+ * The shmid64_ds structure for sparc64 architecture. : * Note extra padding because this structure is passed back and forth : * between kernel and user space. : * : * Pad space is left for: :- * - 64-bit time_t to solve y2038 problem :- * - 2 miscellaneous 32-bit values :+ * - 2 miscellaneous 64-bit values : */ : : struct shmid64_ds { : struct ipc64_perm shm_perm; /* operation perms */ :- unsigned int __pad1; : __kernel_time_t shm_atime; /* last attach time */ :- unsigned int __pad2; : __kernel_time_t shm_dtime; /* last detach time */ :- unsigned int __pad3; : __kernel_time_t shm_ctime; /* last change time */ : size_t shm_segsz; /* size of segment (bytes) */ : __kernel_pid_t shm_cpid; /* pid of creator */ :@@ -39,4 +35,4 @@ : unsigned long __unused4; : }; : :-#endif /* _SPARC_SHMBUF_H */ :+#endif /* _SPARC64_SHMBUF_H */ Signed-off-by: Sam Ravnborg --- include/asm-sparc/shmbuf.h | 14 +++++++++++--- include/asm-sparc64/shmbuf.h | 39 +-------------------------------------- 2 files changed, 12 insertions(+), 41 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/shmbuf.h b/include/asm-sparc/shmbuf.h index 1ff9da8bec73..83a16055363f 100644 --- a/include/asm-sparc/shmbuf.h +++ b/include/asm-sparc/shmbuf.h @@ -11,13 +11,19 @@ * - 2 miscellaneous 32-bit values */ +#if defined(__sparc__) && defined(__arch64__) +# define PADDING(x) +#else +# define PADDING(x) unsigned int x; +#endif + struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ - unsigned int __pad1; + PADDING(__pad1) __kernel_time_t shm_atime; /* last attach time */ - unsigned int __pad2; + PADDING(__pad2) __kernel_time_t shm_dtime; /* last detach time */ - unsigned int __pad3; + PADDING(__pad3) __kernel_time_t shm_ctime; /* last change time */ size_t shm_segsz; /* size of segment (bytes) */ __kernel_pid_t shm_cpid; /* pid of creator */ @@ -39,4 +45,6 @@ struct shminfo64 { unsigned long __unused4; }; +#undef PADDING + #endif /* _SPARC_SHMBUF_H */ diff --git a/include/asm-sparc64/shmbuf.h b/include/asm-sparc64/shmbuf.h index 61c2ef42eba3..0c54a2d68681 100644 --- a/include/asm-sparc64/shmbuf.h +++ b/include/asm-sparc64/shmbuf.h @@ -1,38 +1 @@ -#ifndef _SPARC64_SHMBUF_H -#define _SPARC64_SHMBUF_H - -/* - * The shmid64_ds structure for sparc64 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - __kernel_time_t shm_atime; /* last attach time */ - __kernel_time_t shm_dtime; /* last detach time */ - __kernel_time_t shm_ctime; /* last change time */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused1; - unsigned long __unused2; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _SPARC64_SHMBUF_H */ +#include -- cgit v1.2.3 From f92ffa12f41efab4d4ad2827422d2e0a6c4e0fd2 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 6 Jun 2008 20:51:20 +0200 Subject: sparc: Merge asm-sparc{,64}/mman.h Renaming the function sparc64_mmap_check() to sparc_mmap_check() was enough to make the two header files identical. :$ diff -u include/asm-sparc/mman.h include/asm-sparc64/mman.h :-- include/asm-sparc/mman.h 2008-06-13 06:46:39.000000000 +0200 :++ include/asm-sparc64/mman.h 2008-06-13 06:46:39.000000000 +0200 :@@ -1,5 +1,5 @@ :-#ifndef __SPARC_MMAN_H__ :-#define __SPARC_MMAN_H__ :+#ifndef __SPARC64_MMAN_H__ :+#define __SPARC64_MMAN_H__ : : #include : :@@ -23,9 +23,9 @@ : : #ifdef __KERNEL__ : #ifndef __ASSEMBLY__ :-#define arch_mmap_check(addr,len,flags) sparc_mmap_check(addr,len) :-int sparc_mmap_check(unsigned long addr, unsigned long len); :+#define arch_mmap_check(addr,len,flags) sparc64_mmap_check(addr,len) :+int sparc64_mmap_check(unsigned long addr, unsigned long len); : #endif : #endif : :-#endif /* __SPARC_MMAN_H__ */ :+#endif /* __SPARC64_MMAN_H__ */ Signed-off-by: Sam Ravnborg --- arch/sparc64/kernel/sys_sparc.c | 6 +++--- arch/sparc64/kernel/sys_sparc32.c | 4 ++-- include/asm-sparc64/mman.h | 32 +------------------------------- 3 files changed, 6 insertions(+), 36 deletions(-) (limited to 'include') diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c index ac1bff58c1ac..e1f4eba2e576 100644 --- a/arch/sparc64/kernel/sys_sparc.c +++ b/arch/sparc64/kernel/sys_sparc.c @@ -542,7 +542,7 @@ asmlinkage long sparc64_personality(unsigned long personality) return ret; } -int sparc64_mmap_check(unsigned long addr, unsigned long len) +int sparc_mmap_check(unsigned long addr, unsigned long len) { if (test_thread_flag(TIF_32BIT)) { if (len >= STACK_TOP32) @@ -614,9 +614,9 @@ asmlinkage unsigned long sys64_mremap(unsigned long addr, goto out; if (unlikely(new_len >= VA_EXCLUDE_START)) goto out; - if (unlikely(sparc64_mmap_check(addr, old_len))) + if (unlikely(sparc_mmap_check(addr, old_len))) goto out; - if (unlikely(sparc64_mmap_check(new_addr, new_len))) + if (unlikely(sparc_mmap_check(new_addr, new_len))) goto out; down_write(¤t->mm->mmap_sem); diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c index 590679795ce2..97b77fb5c50e 100644 --- a/arch/sparc64/kernel/sys_sparc32.c +++ b/arch/sparc64/kernel/sys_sparc32.c @@ -871,9 +871,9 @@ asmlinkage unsigned long sys32_mremap(unsigned long addr, unsigned long ret = -EINVAL; unsigned long new_addr = __new_addr; - if (unlikely(sparc64_mmap_check(addr, old_len))) + if (unlikely(sparc_mmap_check(addr, old_len))) goto out; - if (unlikely(sparc64_mmap_check(new_addr, new_len))) + if (unlikely(sparc_mmap_check(new_addr, new_len))) goto out; down_write(¤t->mm->mmap_sem); ret = do_mremap(addr, old_len, new_len, flags, new_addr); diff --git a/include/asm-sparc64/mman.h b/include/asm-sparc64/mman.h index d2ae67cd1bdc..17ddb1724f51 100644 --- a/include/asm-sparc64/mman.h +++ b/include/asm-sparc64/mman.h @@ -1,31 +1 @@ -#ifndef __SPARC64_MMAN_H__ -#define __SPARC64_MMAN_H__ - -#include - -/* SunOS'ified... */ - -#define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */ -#define MAP_NORESERVE 0x40 /* don't reserve swap pages */ -#define MAP_INHERIT 0x80 /* SunOS doesn't do this, but... */ -#define MAP_LOCKED 0x100 /* lock the mapping */ -#define _MAP_NEW 0x80000000 /* Binary compatibility is fun... */ - -#define MAP_GROWSDOWN 0x0200 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ - -#define MCL_CURRENT 0x2000 /* lock all currently mapped pages */ -#define MCL_FUTURE 0x4000 /* lock all additions to address space */ - -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ -#define arch_mmap_check(addr,len,flags) sparc64_mmap_check(addr,len) -int sparc64_mmap_check(unsigned long addr, unsigned long len); -#endif -#endif - -#endif /* __SPARC64_MMAN_H__ */ +#include -- cgit v1.2.3 From fc86029910564703d811882db31265ad082639e9 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 21:54:03 +0200 Subject: sparc: copy asm-sparc64/fbio.h to asm-sparc There were only a few trivial changes and a few additions in the sparc64 variant of this file. This patch copies the sparc64 specific bits to the sparc version of fbio.h so they are equal. A later patch will merge the two. Signed-off-by: Sam Ravnborg --- include/asm-sparc/fbio.h | 37 +++++++++++++++++++++++++++++++++++-- 1 file changed, 35 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/fbio.h b/include/asm-sparc/fbio.h index c2b27e7a7cad..b9215a0907d3 100644 --- a/include/asm-sparc/fbio.h +++ b/include/asm-sparc/fbio.h @@ -1,6 +1,9 @@ #ifndef __LINUX_FBIO_H #define __LINUX_FBIO_H +#include +#include + /* Constants used for fbio SunOS compatibility */ /* (C) 1996 Miguel de Icaza */ @@ -38,6 +41,9 @@ #define FBTYPE_PCI_IGA1682 23 #define FBTYPE_P9100COLOR 24 +#define FBTYPE_PCI_GENERIC 1000 +#define FBTYPE_PCI_MACH64 1001 + /* fbio ioctls */ /* Returned by FBIOGTYPE */ struct fbtype { @@ -97,8 +103,8 @@ struct fbcursor { struct fbcurpos hot; /* cursor hot spot */ struct fbcmap cmap; /* color map info */ struct fbcurpos size; /* cursor bit map size */ - char *image; /* cursor image bits */ - char *mask; /* cursor mask bits */ + char __user *image; /* cursor image bits */ + char __user *mask; /* cursor mask bits */ }; /* set/get cursor attributes/shape */ @@ -294,4 +300,31 @@ struct fb_clut32 { #define LEO_LD_GBL_MAP 0x01009000 #define LEO_UNK2_MAP 0x0100a000 +#ifdef __KERNEL__ +struct fbcmap32 { + int index; /* first element (0 origin) */ + int count; + u32 red; + u32 green; + u32 blue; +}; + +#define FBIOPUTCMAP32 _IOW('F', 3, struct fbcmap32) +#define FBIOGETCMAP32 _IOW('F', 4, struct fbcmap32) + +struct fbcursor32 { + short set; /* what to set, choose from the list above */ + short enable; /* cursor on/off */ + struct fbcurpos pos; /* cursor position */ + struct fbcurpos hot; /* cursor hot spot */ + struct fbcmap32 cmap; /* color map info */ + struct fbcurpos size; /* cursor bit map size */ + u32 image; /* cursor image bits */ + u32 mask; /* cursor mask bits */ +}; + +#define FBIOSCURSOR32 _IOW('F', 24, struct fbcursor32) +#define FBIOGCURSOR32 _IOW('F', 25, struct fbcursor32) +#endif + #endif /* __LINUX_FBIO_H */ -- cgit v1.2.3 From 7acc483d21a6e45e6ec8dc1eec711f7881bc3f3f Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 5 Jun 2008 21:57:01 +0200 Subject: sparc: Merge asm-sparc{,64}/fbio.h Signed-off-by: Sam Ravnborg --- include/asm-sparc64/fbio.h | 331 +-------------------------------------------- 1 file changed, 1 insertion(+), 330 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/fbio.h b/include/asm-sparc64/fbio.h index b9215a0907d3..c17edf8c7bc4 100644 --- a/include/asm-sparc64/fbio.h +++ b/include/asm-sparc64/fbio.h @@ -1,330 +1 @@ -#ifndef __LINUX_FBIO_H -#define __LINUX_FBIO_H - -#include -#include - -/* Constants used for fbio SunOS compatibility */ -/* (C) 1996 Miguel de Icaza */ - -/* Frame buffer types */ -#define FBTYPE_NOTYPE -1 -#define FBTYPE_SUN1BW 0 /* mono */ -#define FBTYPE_SUN1COLOR 1 -#define FBTYPE_SUN2BW 2 -#define FBTYPE_SUN2COLOR 3 -#define FBTYPE_SUN2GP 4 -#define FBTYPE_SUN5COLOR 5 -#define FBTYPE_SUN3COLOR 6 -#define FBTYPE_MEMCOLOR 7 -#define FBTYPE_SUN4COLOR 8 - -#define FBTYPE_NOTSUN1 9 -#define FBTYPE_NOTSUN2 10 -#define FBTYPE_NOTSUN3 11 - -#define FBTYPE_SUNFAST_COLOR 12 /* cg6 */ -#define FBTYPE_SUNROP_COLOR 13 -#define FBTYPE_SUNFB_VIDEO 14 -#define FBTYPE_SUNGIFB 15 -#define FBTYPE_SUNGPLAS 16 -#define FBTYPE_SUNGP3 17 -#define FBTYPE_SUNGT 18 -#define FBTYPE_SUNLEO 19 /* zx Leo card */ -#define FBTYPE_MDICOLOR 20 /* cg14 */ -#define FBTYPE_TCXCOLOR 21 /* SUNW,tcx card */ - -#define FBTYPE_LASTPLUSONE 21 /* This is not last + 1 in fact... */ - -/* Does not seem to be listed in the Sun file either */ -#define FBTYPE_CREATOR 22 -#define FBTYPE_PCI_IGA1682 23 -#define FBTYPE_P9100COLOR 24 - -#define FBTYPE_PCI_GENERIC 1000 -#define FBTYPE_PCI_MACH64 1001 - -/* fbio ioctls */ -/* Returned by FBIOGTYPE */ -struct fbtype { - int fb_type; /* fb type, see above */ - int fb_height; /* pixels */ - int fb_width; /* pixels */ - int fb_depth; - int fb_cmsize; /* color map entries */ - int fb_size; /* fb size in bytes */ -}; -#define FBIOGTYPE _IOR('F', 0, struct fbtype) - -struct fbcmap { - int index; /* first element (0 origin) */ - int count; - unsigned char __user *red; - unsigned char __user *green; - unsigned char __user *blue; -}; - -#ifdef __KERNEL__ -#define FBIOPUTCMAP_SPARC _IOW('F', 3, struct fbcmap) -#define FBIOGETCMAP_SPARC _IOW('F', 4, struct fbcmap) -#else -#define FBIOPUTCMAP _IOW('F', 3, struct fbcmap) -#define FBIOGETCMAP _IOW('F', 4, struct fbcmap) -#endif - -/* # of device specific values */ -#define FB_ATTR_NDEVSPECIFIC 8 -/* # of possible emulations */ -#define FB_ATTR_NEMUTYPES 4 - -struct fbsattr { - int flags; - int emu_type; /* -1 if none */ - int dev_specific[FB_ATTR_NDEVSPECIFIC]; -}; - -struct fbgattr { - int real_type; /* real frame buffer type */ - int owner; /* unknown */ - struct fbtype fbtype; /* real frame buffer fbtype */ - struct fbsattr sattr; - int emu_types[FB_ATTR_NEMUTYPES]; /* supported emulations */ -}; -#define FBIOSATTR _IOW('F', 5, struct fbgattr) /* Unsupported: */ -#define FBIOGATTR _IOR('F', 6, struct fbgattr) /* supported */ - -#define FBIOSVIDEO _IOW('F', 7, int) -#define FBIOGVIDEO _IOR('F', 8, int) - -struct fbcursor { - short set; /* what to set, choose from the list above */ - short enable; /* cursor on/off */ - struct fbcurpos pos; /* cursor position */ - struct fbcurpos hot; /* cursor hot spot */ - struct fbcmap cmap; /* color map info */ - struct fbcurpos size; /* cursor bit map size */ - char __user *image; /* cursor image bits */ - char __user *mask; /* cursor mask bits */ -}; - -/* set/get cursor attributes/shape */ -#define FBIOSCURSOR _IOW('F', 24, struct fbcursor) -#define FBIOGCURSOR _IOWR('F', 25, struct fbcursor) - -/* set/get cursor position */ -#define FBIOSCURPOS _IOW('F', 26, struct fbcurpos) -#define FBIOGCURPOS _IOW('F', 27, struct fbcurpos) - -/* get max cursor size */ -#define FBIOGCURMAX _IOR('F', 28, struct fbcurpos) - -/* wid manipulation */ -struct fb_wid_alloc { -#define FB_WID_SHARED_8 0 -#define FB_WID_SHARED_24 1 -#define FB_WID_DBL_8 2 -#define FB_WID_DBL_24 3 - __u32 wa_type; - __s32 wa_index; /* Set on return */ - __u32 wa_count; -}; -struct fb_wid_item { - __u32 wi_type; - __s32 wi_index; - __u32 wi_attrs; - __u32 wi_values[32]; -}; -struct fb_wid_list { - __u32 wl_flags; - __u32 wl_count; - struct fb_wid_item *wl_list; -}; - -#define FBIO_WID_ALLOC _IOWR('F', 30, struct fb_wid_alloc) -#define FBIO_WID_FREE _IOW('F', 31, struct fb_wid_alloc) -#define FBIO_WID_PUT _IOW('F', 32, struct fb_wid_list) -#define FBIO_WID_GET _IOWR('F', 33, struct fb_wid_list) - -/* Creator ioctls */ -#define FFB_IOCTL ('F'<<8) -#define FFB_SYS_INFO (FFB_IOCTL|80) -#define FFB_CLUTREAD (FFB_IOCTL|81) -#define FFB_CLUTPOST (FFB_IOCTL|82) -#define FFB_SETDIAGMODE (FFB_IOCTL|83) -#define FFB_GETMONITORID (FFB_IOCTL|84) -#define FFB_GETVIDEOMODE (FFB_IOCTL|85) -#define FFB_SETVIDEOMODE (FFB_IOCTL|86) -#define FFB_SETSERVER (FFB_IOCTL|87) -#define FFB_SETOVCTL (FFB_IOCTL|88) -#define FFB_GETOVCTL (FFB_IOCTL|89) -#define FFB_GETSAXNUM (FFB_IOCTL|90) -#define FFB_FBDEBUG (FFB_IOCTL|91) - -/* Cg14 ioctls */ -#define MDI_IOCTL ('M'<<8) -#define MDI_RESET (MDI_IOCTL|1) -#define MDI_GET_CFGINFO (MDI_IOCTL|2) -#define MDI_SET_PIXELMODE (MDI_IOCTL|3) -# define MDI_32_PIX 32 -# define MDI_16_PIX 16 -# define MDI_8_PIX 8 - -struct mdi_cfginfo { - int mdi_ncluts; /* Number of implemented CLUTs in this MDI */ - int mdi_type; /* FBTYPE name */ - int mdi_height; /* height */ - int mdi_width; /* widht */ - int mdi_size; /* available ram */ - int mdi_mode; /* 8bpp, 16bpp or 32bpp */ - int mdi_pixfreq; /* pixel clock (from PROM) */ -}; - -/* SparcLinux specific ioctl for the MDI, should be replaced for - * the SET_XLUT/SET_CLUTn ioctls instead - */ -#define MDI_CLEAR_XLUT (MDI_IOCTL|9) - -/* leo & ffb ioctls */ -struct fb_clut_alloc { - __u32 clutid; /* Set on return */ - __u32 flag; - __u32 index; -}; - -struct fb_clut { -#define FB_CLUT_WAIT 0x00000001 /* Not yet implemented */ - __u32 flag; - __u32 clutid; - __u32 offset; - __u32 count; - char * red; - char * green; - char * blue; -}; - -struct fb_clut32 { - __u32 flag; - __u32 clutid; - __u32 offset; - __u32 count; - __u32 red; - __u32 green; - __u32 blue; -}; - -#define LEO_CLUTALLOC _IOWR('L', 53, struct fb_clut_alloc) -#define LEO_CLUTFREE _IOW('L', 54, struct fb_clut_alloc) -#define LEO_CLUTREAD _IOW('L', 55, struct fb_clut) -#define LEO_CLUTPOST _IOW('L', 56, struct fb_clut) -#define LEO_SETGAMMA _IOW('L', 68, int) /* Not yet implemented */ -#define LEO_GETGAMMA _IOR('L', 69, int) /* Not yet implemented */ - -#ifdef __KERNEL__ -/* Addresses on the fd of a cgsix that are mappable */ -#define CG6_FBC 0x70000000 -#define CG6_TEC 0x70001000 -#define CG6_BTREGS 0x70002000 -#define CG6_FHC 0x70004000 -#define CG6_THC 0x70005000 -#define CG6_ROM 0x70006000 -#define CG6_RAM 0x70016000 -#define CG6_DHC 0x80000000 - -#define CG3_MMAP_OFFSET 0x4000000 - -/* Addresses on the fd of a tcx that are mappable */ -#define TCX_RAM8BIT 0x00000000 -#define TCX_RAM24BIT 0x01000000 -#define TCX_UNK3 0x10000000 -#define TCX_UNK4 0x20000000 -#define TCX_CONTROLPLANE 0x28000000 -#define TCX_UNK6 0x30000000 -#define TCX_UNK7 0x38000000 -#define TCX_TEC 0x70000000 -#define TCX_BTREGS 0x70002000 -#define TCX_THC 0x70004000 -#define TCX_DHC 0x70008000 -#define TCX_ALT 0x7000a000 -#define TCX_SYNC 0x7000e000 -#define TCX_UNK2 0x70010000 - -/* CG14 definitions */ - -/* Offsets into the OBIO space: */ -#define CG14_REGS 0 /* registers */ -#define CG14_CURSORREGS 0x1000 /* cursor registers */ -#define CG14_DACREGS 0x2000 /* DAC registers */ -#define CG14_XLUT 0x3000 /* X Look Up Table -- ??? */ -#define CG14_CLUT1 0x4000 /* Color Look Up Table */ -#define CG14_CLUT2 0x5000 /* Color Look Up Table */ -#define CG14_CLUT3 0x6000 /* Color Look Up Table */ -#define CG14_AUTO 0xf000 - -#endif /* KERNEL */ - -/* These are exported to userland for applications to use */ -/* Mappable offsets for the cg14: control registers */ -#define MDI_DIRECT_MAP 0x10000000 -#define MDI_CTLREG_MAP 0x20000000 -#define MDI_CURSOR_MAP 0x30000000 -#define MDI_SHDW_VRT_MAP 0x40000000 - -/* Mappable offsets for the cg14: frame buffer resolutions */ -/* 32 bits */ -#define MDI_CHUNKY_XBGR_MAP 0x50000000 -#define MDI_CHUNKY_BGR_MAP 0x60000000 - -/* 16 bits */ -#define MDI_PLANAR_X16_MAP 0x70000000 -#define MDI_PLANAR_C16_MAP 0x80000000 - -/* 8 bit is done as CG3 MMAP offset */ -/* 32 bits, planar */ -#define MDI_PLANAR_X32_MAP 0x90000000 -#define MDI_PLANAR_B32_MAP 0xa0000000 -#define MDI_PLANAR_G32_MAP 0xb0000000 -#define MDI_PLANAR_R32_MAP 0xc0000000 - -/* Mappable offsets on leo */ -#define LEO_SS0_MAP 0x00000000 -#define LEO_LC_SS0_USR_MAP 0x00800000 -#define LEO_LD_SS0_MAP 0x00801000 -#define LEO_LX_CURSOR_MAP 0x00802000 -#define LEO_SS1_MAP 0x00803000 -#define LEO_LC_SS1_USR_MAP 0x01003000 -#define LEO_LD_SS1_MAP 0x01004000 -#define LEO_UNK_MAP 0x01005000 -#define LEO_LX_KRN_MAP 0x01006000 -#define LEO_LC_SS0_KRN_MAP 0x01007000 -#define LEO_LC_SS1_KRN_MAP 0x01008000 -#define LEO_LD_GBL_MAP 0x01009000 -#define LEO_UNK2_MAP 0x0100a000 - -#ifdef __KERNEL__ -struct fbcmap32 { - int index; /* first element (0 origin) */ - int count; - u32 red; - u32 green; - u32 blue; -}; - -#define FBIOPUTCMAP32 _IOW('F', 3, struct fbcmap32) -#define FBIOGETCMAP32 _IOW('F', 4, struct fbcmap32) - -struct fbcursor32 { - short set; /* what to set, choose from the list above */ - short enable; /* cursor on/off */ - struct fbcurpos pos; /* cursor position */ - struct fbcurpos hot; /* cursor hot spot */ - struct fbcmap32 cmap; /* color map info */ - struct fbcurpos size; /* cursor bit map size */ - u32 image; /* cursor image bits */ - u32 mask; /* cursor mask bits */ -}; - -#define FBIOSCURSOR32 _IOW('F', 24, struct fbcursor32) -#define FBIOGCURSOR32 _IOW('F', 25, struct fbcursor32) -#endif - -#endif /* __LINUX_FBIO_H */ +#include -- cgit v1.2.3 From 68a61c8d87dae7c7b7cc76ab01190475e87be0d9 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 6 Jun 2008 21:02:38 +0200 Subject: sparc: Merge asm-sparc{,64}/resource.h RLIM_INFINITY differ from 32 and 64 bit. The rest is equal. :$ diff -u include/asm-sparc/resource.h include/asm-sparc64/resource.h :-- include/asm-sparc/resource.h 2008-06-13 06:46:39.000000000 +0200 :++ include/asm-sparc64/resource.h 2008-06-13 06:46:39.000000000 +0200 :@@ -1,11 +1,11 @@ : /* : * resource.h: Resource definitions. : * :- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) :+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) : */ : :-#ifndef _SPARC_RESOURCE_H :-#define _SPARC_RESOURCE_H :+#ifndef _SPARC64_RESOURCE_H :+#define _SPARC64_RESOURCE_H : : /* : * These two resource limit IDs have a Sparc/Linux-specific ordering, :@@ -14,13 +14,6 @@ : #define RLIMIT_NOFILE 6 /* max number of open files */ : #define RLIMIT_NPROC 7 /* max number of processes */ : :-/* :- * SuS says limits have to be unsigned. :- * We make this unsigned, but keep the :- * old value for compatibility: :- */ :-#define RLIM_INFINITY 0x7fffffff :- : #include : :-#endif /* !(_SPARC_RESOURCE_H) */ :+#endif /* !(_SPARC64_RESOURCE_H) */ Signed-off-by: Sam Ravnborg --- include/asm-sparc/resource.h | 6 +++++- include/asm-sparc64/resource.h | 20 +------------------- 2 files changed, 6 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/resource.h b/include/asm-sparc/resource.h index 985948a41299..fe163cafb4c7 100644 --- a/include/asm-sparc/resource.h +++ b/include/asm-sparc/resource.h @@ -1,7 +1,7 @@ /* * resource.h: Resource definitions. * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC_RESOURCE_H @@ -14,12 +14,16 @@ #define RLIMIT_NOFILE 6 /* max number of open files */ #define RLIMIT_NPROC 7 /* max number of processes */ +#if defined(__sparc__) && defined(__arch64__) +/* Use generic version */ +#else /* * SuS says limits have to be unsigned. * We make this unsigned, but keep the * old value for compatibility: */ #define RLIM_INFINITY 0x7fffffff +#endif #include diff --git a/include/asm-sparc64/resource.h b/include/asm-sparc64/resource.h index 4f08fb5e4ca4..46e3bc0de476 100644 --- a/include/asm-sparc64/resource.h +++ b/include/asm-sparc64/resource.h @@ -1,19 +1 @@ -/* - * resource.h: Resource definitions. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC64_RESOURCE_H -#define _SPARC64_RESOURCE_H - -/* - * These two resource limit IDs have a Sparc/Linux-specific ordering, - * the rest comes from the generic header: - */ -#define RLIMIT_NOFILE 6 /* max number of open files */ -#define RLIMIT_NPROC 7 /* max number of processes */ - -#include - -#endif /* !(_SPARC64_RESOURCE_H) */ +#include -- cgit v1.2.3 From 7c4285d8362641b815ea71018139619db965ab34 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 6 Jun 2008 21:06:11 +0200 Subject: sparc: Merge asm-sparc{,64}/setup.h COMMAND_LINE_SIZE differ for 32 and 64 bit. 256 versus 2048 :$ diff -u include/asm-sparc/setup.h include/asm-sparc64/setup.h :-- include/asm-sparc/setup.h 2008-06-13 06:42:07.000000000 +0200 :++ include/asm-sparc64/setup.h 2008-06-13 06:42:07.000000000 +0200 :@@ -2,9 +2,9 @@ : * Just a place holder. : */ : :-#ifndef _SPARC_SETUP_H :-#define _SPARC_SETUP_H :+#ifndef _SPARC64_SETUP_H :+#define _SPARC64_SETUP_H : :-#define COMMAND_LINE_SIZE 256 :+#define COMMAND_LINE_SIZE 2048 : :-#endif /* _SPARC_SETUP_H */ :+#endif /* _SPARC64_SETUP_H */ Signed-off-by: Sam Ravnborg --- include/asm-sparc/setup.h | 6 +++++- include/asm-sparc64/setup.h | 11 +---------- 2 files changed, 6 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/setup.h b/include/asm-sparc/setup.h index b3af958a2ad2..2643c62f4ac0 100644 --- a/include/asm-sparc/setup.h +++ b/include/asm-sparc/setup.h @@ -5,6 +5,10 @@ #ifndef _SPARC_SETUP_H #define _SPARC_SETUP_H -#define COMMAND_LINE_SIZE 256 +#if defined(__sparc__) && defined(__arch64__) +# define COMMAND_LINE_SIZE 2048 +#else +# define COMMAND_LINE_SIZE 256 +#endif #endif /* _SPARC_SETUP_H */ diff --git a/include/asm-sparc64/setup.h b/include/asm-sparc64/setup.h index 5053df3cec40..7143d06b2c55 100644 --- a/include/asm-sparc64/setup.h +++ b/include/asm-sparc64/setup.h @@ -1,10 +1 @@ -/* - * Just a place holder. - */ - -#ifndef _SPARC64_SETUP_H -#define _SPARC64_SETUP_H - -#define COMMAND_LINE_SIZE 2048 - -#endif /* _SPARC64_SETUP_H */ +#include -- cgit v1.2.3 From 943d0e86133a3f2e69b24e9754390a60d92ad224 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 6 Jun 2008 21:13:45 +0200 Subject: sparc: Merge asm-sparc{,64}/termbits.h The type of tcflag_t differs from 32 and 64 bit. For 32 bit it is long For 64 bit it is int Altough these have same size then I was not sure that it was OK to change the 64 bit version to long as this is part of the ABI so it was made conditional. :$ diff -u include/asm-sparc/termbits.h include/asm-sparc64/termbits.h :-- include/asm-sparc/termbits.h 2008-06-13 06:42:07.000000000 +0200 :++ include/asm-sparc64/termbits.h 2008-06-13 06:42:07.000000000 +0200 :@@ -1,11 +1,11 @@ :-#ifndef _SPARC_TERMBITS_H :-#define _SPARC_TERMBITS_H :+#ifndef _SPARC64_TERMBITS_H :+#define _SPARC64_TERMBITS_H : : #include : : typedef unsigned char cc_t; : typedef unsigned int speed_t; :-typedef unsigned long tcflag_t; :+typedef unsigned int tcflag_t; : : #define NCC 8 : struct termio { :@@ -102,7 +102,7 @@ : #define IXANY 0x00000800 : #define IXOFF 0x00001000 : #define IMAXBEL 0x00002000 :-#define IUTF8 0x00004000 :+#define IUTF8 0x00004000 : : /* c_oflag bits */ : #define OPOST 0x00000001 :@@ -171,7 +171,6 @@ : #define HUPCL 0x00000400 : #define CLOCAL 0x00000800 : #define CBAUDEX 0x00001000 :-/* We'll never see these speeds with the Zilogs, but for completeness... */ : #define BOTHER 0x00001000 : #define B57600 0x00001001 : #define B115200 0x00001002 :@@ -199,7 +198,7 @@ : #define B3500000 0x00001012 : #define B4000000 0x00001013 */ : #define CIBAUD 0x100f0000 /* input baud rate (not used) */ :-#define CMSPAR 0x40000000 /* mark or space (stick) parity */ :+#define CMSPAR 0x40000000 /* mark or space (stick) parity */ : #define CRTSCTS 0x80000000 /* flow control */ : : #define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ :@@ -258,4 +257,4 @@ : #define TCSADRAIN 1 : #define TCSAFLUSH 2 : :-#endif /* !(_SPARC_TERMBITS_H) */ :+#endif /* !(_SPARC64_TERMBITS_H) */ Signed-off-by: Sam Ravnborg --- include/asm-sparc/termbits.h | 5 + include/asm-sparc64/termbits.h | 261 +---------------------------------------- 2 files changed, 6 insertions(+), 260 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/termbits.h b/include/asm-sparc/termbits.h index 90cf2210118b..d6ca3e2754f5 100644 --- a/include/asm-sparc/termbits.h +++ b/include/asm-sparc/termbits.h @@ -5,7 +5,12 @@ typedef unsigned char cc_t; typedef unsigned int speed_t; + +#if defined(__sparc__) && defined(__arch64__) +typedef unsigned int tcflag_t; +#else typedef unsigned long tcflag_t; +#endif #define NCC 8 struct termio { diff --git a/include/asm-sparc64/termbits.h b/include/asm-sparc64/termbits.h index ebe31c152f16..e03f97592c70 100644 --- a/include/asm-sparc64/termbits.h +++ b/include/asm-sparc64/termbits.h @@ -1,260 +1 @@ -#ifndef _SPARC64_TERMBITS_H -#define _SPARC64_TERMBITS_H - -#include - -typedef unsigned char cc_t; -typedef unsigned int speed_t; -typedef unsigned int tcflag_t; - -#define NCC 8 -struct termio { - unsigned short c_iflag; /* input mode flags */ - unsigned short c_oflag; /* output mode flags */ - unsigned short c_cflag; /* control mode flags */ - unsigned short c_lflag; /* local mode flags */ - unsigned char c_line; /* line discipline */ - unsigned char c_cc[NCC]; /* control characters */ -}; - -#define NCCS 17 -struct termios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ -#ifdef __KERNEL__ -#define SIZEOF_USER_TERMIOS sizeof (struct termios) - (2*sizeof (cc_t)) - cc_t _x_cc[2]; /* We need them to hold vmin/vtime */ -#endif -}; - -struct termios2 { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - cc_t _x_cc[2]; /* padding to match ktermios */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -struct ktermios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - cc_t _x_cc[2]; /* We need them to hold vmin/vtime */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -/* c_cc characters */ -#define VINTR 0 -#define VQUIT 1 -#define VERASE 2 -#define VKILL 3 -#define VEOF 4 -#define VEOL 5 -#define VEOL2 6 -#define VSWTC 7 -#define VSTART 8 -#define VSTOP 9 - - - -#define VSUSP 10 -#define VDSUSP 11 /* SunOS POSIX nicety I do believe... */ -#define VREPRINT 12 -#define VDISCARD 13 -#define VWERASE 14 -#define VLNEXT 15 - -/* Kernel keeps vmin/vtime separated, user apps assume vmin/vtime is - * shared with eof/eol - */ -#ifdef __KERNEL__ -#define VMIN 16 -#define VTIME 17 -#else -#define VMIN VEOF -#define VTIME VEOL -#endif - -/* c_iflag bits */ -#define IGNBRK 0x00000001 -#define BRKINT 0x00000002 -#define IGNPAR 0x00000004 -#define PARMRK 0x00000008 -#define INPCK 0x00000010 -#define ISTRIP 0x00000020 -#define INLCR 0x00000040 -#define IGNCR 0x00000080 -#define ICRNL 0x00000100 -#define IUCLC 0x00000200 -#define IXON 0x00000400 -#define IXANY 0x00000800 -#define IXOFF 0x00001000 -#define IMAXBEL 0x00002000 -#define IUTF8 0x00004000 - -/* c_oflag bits */ -#define OPOST 0x00000001 -#define OLCUC 0x00000002 -#define ONLCR 0x00000004 -#define OCRNL 0x00000008 -#define ONOCR 0x00000010 -#define ONLRET 0x00000020 -#define OFILL 0x00000040 -#define OFDEL 0x00000080 -#define NLDLY 0x00000100 -#define NL0 0x00000000 -#define NL1 0x00000100 -#define CRDLY 0x00000600 -#define CR0 0x00000000 -#define CR1 0x00000200 -#define CR2 0x00000400 -#define CR3 0x00000600 -#define TABDLY 0x00001800 -#define TAB0 0x00000000 -#define TAB1 0x00000800 -#define TAB2 0x00001000 -#define TAB3 0x00001800 -#define XTABS 0x00001800 -#define BSDLY 0x00002000 -#define BS0 0x00000000 -#define BS1 0x00002000 -#define VTDLY 0x00004000 -#define VT0 0x00000000 -#define VT1 0x00004000 -#define FFDLY 0x00008000 -#define FF0 0x00000000 -#define FF1 0x00008000 -#define PAGEOUT 0x00010000 /* SUNOS specific */ -#define WRAP 0x00020000 /* SUNOS specific */ - -/* c_cflag bit meaning */ -#define CBAUD 0x0000100f -#define B0 0x00000000 /* hang up */ -#define B50 0x00000001 -#define B75 0x00000002 -#define B110 0x00000003 -#define B134 0x00000004 -#define B150 0x00000005 -#define B200 0x00000006 -#define B300 0x00000007 -#define B600 0x00000008 -#define B1200 0x00000009 -#define B1800 0x0000000a -#define B2400 0x0000000b -#define B4800 0x0000000c -#define B9600 0x0000000d -#define B19200 0x0000000e -#define B38400 0x0000000f -#define EXTA B19200 -#define EXTB B38400 -#define CSIZE 0x00000030 -#define CS5 0x00000000 -#define CS6 0x00000010 -#define CS7 0x00000020 -#define CS8 0x00000030 -#define CSTOPB 0x00000040 -#define CREAD 0x00000080 -#define PARENB 0x00000100 -#define PARODD 0x00000200 -#define HUPCL 0x00000400 -#define CLOCAL 0x00000800 -#define CBAUDEX 0x00001000 -#define BOTHER 0x00001000 -#define B57600 0x00001001 -#define B115200 0x00001002 -#define B230400 0x00001003 -#define B460800 0x00001004 -/* This is what we can do with the Zilogs. */ -#define B76800 0x00001005 -/* This is what we can do with the SAB82532. */ -#define B153600 0x00001006 -#define B307200 0x00001007 -#define B614400 0x00001008 -#define B921600 0x00001009 -/* And these are the rest... */ -#define B500000 0x0000100a -#define B576000 0x0000100b -#define B1000000 0x0000100c -#define B1152000 0x0000100d -#define B1500000 0x0000100e -#define B2000000 0x0000100f -/* These have totally bogus values and nobody uses them - so far. Later on we'd have to use say 0x10000x and - adjust CBAUD constant and drivers accordingly. -#define B2500000 0x00001010 -#define B3000000 0x00001011 -#define B3500000 0x00001012 -#define B4000000 0x00001013 */ -#define CIBAUD 0x100f0000 /* input baud rate (not used) */ -#define CMSPAR 0x40000000 /* mark or space (stick) parity */ -#define CRTSCTS 0x80000000 /* flow control */ - -#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ - -/* c_lflag bits */ -#define ISIG 0x00000001 -#define ICANON 0x00000002 -#define XCASE 0x00000004 -#define ECHO 0x00000008 -#define ECHOE 0x00000010 -#define ECHOK 0x00000020 -#define ECHONL 0x00000040 -#define NOFLSH 0x00000080 -#define TOSTOP 0x00000100 -#define ECHOCTL 0x00000200 -#define ECHOPRT 0x00000400 -#define ECHOKE 0x00000800 -#define DEFECHO 0x00001000 /* SUNOS thing, what is it? */ -#define FLUSHO 0x00002000 -#define PENDIN 0x00004000 -#define IEXTEN 0x00008000 - -/* modem lines */ -#define TIOCM_LE 0x001 -#define TIOCM_DTR 0x002 -#define TIOCM_RTS 0x004 -#define TIOCM_ST 0x008 -#define TIOCM_SR 0x010 -#define TIOCM_CTS 0x020 -#define TIOCM_CAR 0x040 -#define TIOCM_RNG 0x080 -#define TIOCM_DSR 0x100 -#define TIOCM_CD TIOCM_CAR -#define TIOCM_RI TIOCM_RNG -#define TIOCM_OUT1 0x2000 -#define TIOCM_OUT2 0x4000 -#define TIOCM_LOOP 0x8000 - -/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ -#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ - - -/* tcflow() and TCXONC use these */ -#define TCOOFF 0 -#define TCOON 1 -#define TCIOFF 2 -#define TCION 3 - -/* tcflush() and TCFLSH use these */ -#define TCIFLUSH 0 -#define TCOFLUSH 1 -#define TCIOFLUSH 2 - -/* tcsetattr uses these */ -#define TCSANOW 0 -#define TCSADRAIN 1 -#define TCSAFLUSH 2 - -#endif /* !(_SPARC64_TERMBITS_H) */ +#include -- cgit v1.2.3 From c6d1b0e3d2b71ded7c457c2c9f1ab8c2c957aafe Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 6 Jun 2008 21:27:54 +0200 Subject: sparc: Merge asm-sparc{,64}/termios.h Bring the commit e55c57e0b51c68d78845549505057169c6c3cba6 ("[SPARC64]: Report any user access faults in termios accessors") over to sparc when unifying the two files. The diff was manually inspected to contain no other relevant changes. This unification therefore changes functionality of sparc. Signed-off-by: Sam Ravnborg --- include/asm-sparc/termios.h | 79 +++++++++--------- include/asm-sparc64/termios.h | 187 +----------------------------------------- 2 files changed, 42 insertions(+), 224 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/termios.h b/include/asm-sparc/termios.h index f7b4409c35ff..e8ba95399643 100644 --- a/include/asm-sparc/termios.h +++ b/include/asm-sparc/termios.h @@ -53,7 +53,6 @@ struct winsize { #define _VMIN 4 #define _VTIME 5 - /* intr=^C quit=^\ erase=del kill=^U eof=^D eol=\0 eol2=\0 sxtc=\0 start=^Q stop=^S susp=^Z dsusp=^Y @@ -68,16 +67,17 @@ struct winsize { #define user_termio_to_kernel_termios(termios, termio) \ ({ \ unsigned short tmp; \ - get_user(tmp, &(termio)->c_iflag); \ + int err; \ + err = get_user(tmp, &(termio)->c_iflag); \ (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \ - get_user(tmp, &(termio)->c_oflag); \ + err |= get_user(tmp, &(termio)->c_oflag); \ (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \ - get_user(tmp, &(termio)->c_cflag); \ + err |= get_user(tmp, &(termio)->c_cflag); \ (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \ - get_user(tmp, &(termio)->c_lflag); \ + err |= get_user(tmp, &(termio)->c_lflag); \ (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \ - copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ - 0; \ + err |= copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ + err; \ }) /* @@ -87,17 +87,18 @@ struct winsize { */ #define kernel_termios_to_user_termio(termio, termios) \ ({ \ - put_user((termios)->c_iflag, &(termio)->c_iflag); \ - put_user((termios)->c_oflag, &(termio)->c_oflag); \ - put_user((termios)->c_cflag, &(termio)->c_cflag); \ - put_user((termios)->c_lflag, &(termio)->c_lflag); \ - put_user((termios)->c_line, &(termio)->c_line); \ - copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ + int err; \ + err = put_user((termios)->c_iflag, &(termio)->c_iflag); \ + err |= put_user((termios)->c_oflag, &(termio)->c_oflag); \ + err |= put_user((termios)->c_cflag, &(termio)->c_cflag); \ + err |= put_user((termios)->c_lflag, &(termio)->c_lflag); \ + err |= put_user((termios)->c_line, &(termio)->c_line); \ + err |= copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ if (!((termios)->c_lflag & ICANON)) { \ - put_user((termios)->c_cc[VMIN], &(termio)->c_cc[_VMIN]); \ - put_user((termios)->c_cc[VTIME], &(termio)->c_cc[_VTIME]); \ + err |= put_user((termios)->c_cc[VMIN], &(termio)->c_cc[_VMIN]); \ + err |= put_user((termios)->c_cc[VTIME], &(termio)->c_cc[_VTIME]); \ } \ - 0; \ + err; \ }) #define user_termios_to_kernel_termios(k, u) \ @@ -144,38 +145,40 @@ struct winsize { #define user_termios_to_kernel_termios_1(k, u) \ ({ \ - get_user((k)->c_iflag, &(u)->c_iflag); \ - get_user((k)->c_oflag, &(u)->c_oflag); \ - get_user((k)->c_cflag, &(u)->c_cflag); \ - get_user((k)->c_lflag, &(u)->c_lflag); \ - get_user((k)->c_line, &(u)->c_line); \ - copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \ + int err; \ + err = get_user((k)->c_iflag, &(u)->c_iflag); \ + err |= get_user((k)->c_oflag, &(u)->c_oflag); \ + err |= get_user((k)->c_cflag, &(u)->c_cflag); \ + err |= get_user((k)->c_lflag, &(u)->c_lflag); \ + err |= get_user((k)->c_line, &(u)->c_line); \ + err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \ if ((k)->c_lflag & ICANON) { \ - get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ - get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ + err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ + err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ } else { \ - get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ - get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ + err |= get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ + err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ } \ - 0; \ + err; \ }) #define kernel_termios_to_user_termios_1(u, k) \ ({ \ - put_user((k)->c_iflag, &(u)->c_iflag); \ - put_user((k)->c_oflag, &(u)->c_oflag); \ - put_user((k)->c_cflag, &(u)->c_cflag); \ - put_user((k)->c_lflag, &(u)->c_lflag); \ - put_user((k)->c_line, &(u)->c_line); \ - copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \ + int err; \ + err = put_user((k)->c_iflag, &(u)->c_iflag); \ + err |= put_user((k)->c_oflag, &(u)->c_oflag); \ + err |= put_user((k)->c_cflag, &(u)->c_cflag); \ + err |= put_user((k)->c_lflag, &(u)->c_lflag); \ + err |= put_user((k)->c_line, &(u)->c_line); \ + err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \ if (!((k)->c_lflag & ICANON)) { \ - put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ - put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ + err |= put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ + err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ } else { \ - put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ - put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ + err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ + err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ } \ - 0; \ + err; \ }) #endif /* __KERNEL__ */ diff --git a/include/asm-sparc64/termios.h b/include/asm-sparc64/termios.h index 1f5dab25dda5..940495eb05cc 100644 --- a/include/asm-sparc64/termios.h +++ b/include/asm-sparc64/termios.h @@ -1,186 +1 @@ -#ifndef _SPARC64_TERMIOS_H -#define _SPARC64_TERMIOS_H - -#include -#include - -#if defined(__KERNEL__) || defined(__DEFINE_BSD_TERMIOS) -struct sgttyb { - char sg_ispeed; - char sg_ospeed; - char sg_erase; - char sg_kill; - short sg_flags; -}; - -struct tchars { - char t_intrc; - char t_quitc; - char t_startc; - char t_stopc; - char t_eofc; - char t_brkc; -}; - -struct ltchars { - char t_suspc; - char t_dsuspc; - char t_rprntc; - char t_flushc; - char t_werasc; - char t_lnextc; -}; -#endif /* __KERNEL__ */ - -struct winsize { - unsigned short ws_row; - unsigned short ws_col; - unsigned short ws_xpixel; - unsigned short ws_ypixel; -}; - -#ifdef __KERNEL__ -#include - -/* - * c_cc characters in the termio structure. Oh, how I love being - * backwardly compatible. Notice that character 4 and 5 are - * interpreted differently depending on whether ICANON is set in - * c_lflag. If it's set, they are used as _VEOF and _VEOL, otherwise - * as _VMIN and V_TIME. This is for compatibility with OSF/1 (which - * is compatible with sysV)... - */ -#define _VMIN 4 -#define _VTIME 5 - -/* intr=^C quit=^\ erase=del kill=^U - eof=^D eol=\0 eol2=\0 sxtc=\0 - start=^Q stop=^S susp=^Z dsusp=^Y - reprint=^R discard=^U werase=^W lnext=^V - vmin=\1 vtime=\0 -*/ -#define INIT_C_CC "\003\034\177\025\004\000\000\000\021\023\032\031\022\025\027\026\001" - -/* - * Translate a "termio" structure into a "termios". Ugh. - */ -#define user_termio_to_kernel_termios(termios, termio) \ -({ \ - unsigned short tmp; \ - int err; \ - err = get_user(tmp, &(termio)->c_iflag); \ - (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \ - err |= get_user(tmp, &(termio)->c_oflag); \ - (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \ - err |= get_user(tmp, &(termio)->c_cflag); \ - (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \ - err |= get_user(tmp, &(termio)->c_lflag); \ - (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \ - err |= copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ - err; \ -}) - -/* - * Translate a "termios" structure into a "termio". Ugh. - * - * Note the "fun" _VMIN overloading. - */ -#define kernel_termios_to_user_termio(termio, termios) \ -({ \ - int err; \ - err = put_user((termios)->c_iflag, &(termio)->c_iflag); \ - err |= put_user((termios)->c_oflag, &(termio)->c_oflag); \ - err |= put_user((termios)->c_cflag, &(termio)->c_cflag); \ - err |= put_user((termios)->c_lflag, &(termio)->c_lflag); \ - err |= put_user((termios)->c_line, &(termio)->c_line); \ - err |= copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ - if (!((termios)->c_lflag & ICANON)) { \ - err |= put_user((termios)->c_cc[VMIN], &(termio)->c_cc[_VMIN]); \ - err |= put_user((termios)->c_cc[VTIME], &(termio)->c_cc[_VTIME]); \ - } \ - err; \ -}) - -#define user_termios_to_kernel_termios(k, u) \ -({ \ - int err; \ - err = get_user((k)->c_iflag, &(u)->c_iflag); \ - err |= get_user((k)->c_oflag, &(u)->c_oflag); \ - err |= get_user((k)->c_cflag, &(u)->c_cflag); \ - err |= get_user((k)->c_lflag, &(u)->c_lflag); \ - err |= get_user((k)->c_line, &(u)->c_line); \ - err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \ - if((k)->c_lflag & ICANON) { \ - err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ - err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ - } else { \ - err |= get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ - err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ - } \ - err |= get_user((k)->c_ispeed, &(u)->c_ispeed); \ - err |= get_user((k)->c_ospeed, &(u)->c_ospeed); \ - err; \ -}) - -#define kernel_termios_to_user_termios(u, k) \ -({ \ - int err; \ - err = put_user((k)->c_iflag, &(u)->c_iflag); \ - err |= put_user((k)->c_oflag, &(u)->c_oflag); \ - err |= put_user((k)->c_cflag, &(u)->c_cflag); \ - err |= put_user((k)->c_lflag, &(u)->c_lflag); \ - err |= put_user((k)->c_line, &(u)->c_line); \ - err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \ - if(!((k)->c_lflag & ICANON)) { \ - err |= put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ - err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ - } else { \ - err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ - err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ - } \ - err |= put_user((k)->c_ispeed, &(u)->c_ispeed); \ - err |= put_user((k)->c_ospeed, &(u)->c_ospeed); \ - err; \ -}) - -#define user_termios_to_kernel_termios_1(k, u) \ -({ \ - int err; \ - err = get_user((k)->c_iflag, &(u)->c_iflag); \ - err |= get_user((k)->c_oflag, &(u)->c_oflag); \ - err |= get_user((k)->c_cflag, &(u)->c_cflag); \ - err |= get_user((k)->c_lflag, &(u)->c_lflag); \ - err |= get_user((k)->c_line, &(u)->c_line); \ - err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \ - if((k)->c_lflag & ICANON) { \ - err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ - err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ - } else { \ - err |= get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ - err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ - } \ - err; \ -}) - -#define kernel_termios_to_user_termios_1(u, k) \ -({ \ - int err; \ - err = put_user((k)->c_iflag, &(u)->c_iflag); \ - err |= put_user((k)->c_oflag, &(u)->c_oflag); \ - err |= put_user((k)->c_cflag, &(u)->c_cflag); \ - err |= put_user((k)->c_lflag, &(u)->c_lflag); \ - err |= put_user((k)->c_line, &(u)->c_line); \ - err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \ - if(!((k)->c_lflag & ICANON)) { \ - err |= put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ - err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ - } else { \ - err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ - err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ - } \ - err; \ -}) - -#endif /* __KERNEL__ */ - -#endif /* _SPARC64_TERMIOS_H */ +#include -- cgit v1.2.3 From b444b9a5a1171ef07e1a87b01f7bb5bd0206d012 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 6 Jun 2008 21:35:43 +0200 Subject: sparc: Merge asm-sparc{,64}/types.h Copy content of sparc64 file to sparc file. There is only minimal possibilities for further unification. Signed-off-by: Sam Ravnborg --- include/asm-sparc/types.h | 32 +++++++++++++++++++++++++++++++- include/asm-sparc64/types.h | 35 +---------------------------------- 2 files changed, 32 insertions(+), 35 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/types.h b/include/asm-sparc/types.h index 07734f942405..8c28fde5eaa2 100644 --- a/include/asm-sparc/types.h +++ b/include/asm-sparc/types.h @@ -1,6 +1,5 @@ #ifndef _SPARC_TYPES_H #define _SPARC_TYPES_H - /* * This file is never included by application software unless * explicitly requested (e.g., via linux/types.h) in which case the @@ -8,6 +7,35 @@ * not a major issue. However, for interoperability, libraries still * need to be careful to avoid a name clashes. */ + +#if defined(__sparc__) && defined(__arch64__) + +/*** SPARC 64 bit ***/ +#include + +#ifndef __ASSEMBLY__ + +typedef unsigned short umode_t; + +#endif /* __ASSEMBLY__ */ + +#ifdef __KERNEL__ + +#define BITS_PER_LONG 64 + +#ifndef __ASSEMBLY__ + +/* Dma addresses come in generic and 64-bit flavours. */ + +typedef u32 dma_addr_t; +typedef u64 dma64_addr_t; + +#endif /* __ASSEMBLY__ */ + +#endif /* __KERNEL__ */ +#else + +/*** SPARC 32 bit ***/ #include #ifndef __ASSEMBLY__ @@ -29,4 +57,6 @@ typedef u32 dma64_addr_t; #endif /* __KERNEL__ */ +#endif /* defined(__sparc__) && defined(__arch64__) */ + #endif /* defined(_SPARC_TYPES_H) */ diff --git a/include/asm-sparc64/types.h b/include/asm-sparc64/types.h index b27ccc85202f..cfbfad5043eb 100644 --- a/include/asm-sparc64/types.h +++ b/include/asm-sparc64/types.h @@ -1,34 +1 @@ -#ifndef _SPARC64_TYPES_H -#define _SPARC64_TYPES_H - -/* - * This file is never included by application software unless - * explicitly requested (e.g., via linux/types.h) in which case the - * application is Linux specific so (user-) name space pollution is - * not a major issue. However, for interoperability, libraries still - * need to be careful to avoid a name clashes. - */ -#include - -#ifndef __ASSEMBLY__ - -typedef unsigned short umode_t; - -#endif /* __ASSEMBLY__ */ - -#ifdef __KERNEL__ - -#define BITS_PER_LONG 64 - -#ifndef __ASSEMBLY__ - -/* Dma addresses come in generic and 64-bit flavours. */ - -typedef u32 dma_addr_t; -typedef u64 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - -#endif /* defined(_SPARC64_TYPES_H) */ +#include -- cgit v1.2.3 From b1a8bf92a0303301f3e013e2a2f45a4916453ce7 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 13 Jun 2008 20:20:54 +0200 Subject: sparc: export openprom.h to userspace sparc64 exports openprom.h to userspace so let sparc follow the example. As openprom.h pulled in another not-for-export vaddrs.h header file it required a few changes to fix the build. The definition af VMALLOC_* were moved to pgtable as this is where sparc64 has them. Signed-off-by: Sam Ravnborg --- arch/sparc/kernel/entry.S | 1 + include/asm-sparc/Kbuild | 1 + include/asm-sparc/openprom.h | 2 -- include/asm-sparc/pgtable.h | 7 ++++++- include/asm-sparc/vaddrs.h | 5 ----- 5 files changed, 8 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S index 55d3be1b5d81..2f96256dc515 100644 --- a/arch/sparc/kernel/entry.S +++ b/arch/sparc/kernel/entry.S @@ -19,6 +19,7 @@ #include #include #include +#include #ifdef CONFIG_SUN4 #include #else diff --git a/include/asm-sparc/Kbuild b/include/asm-sparc/Kbuild index c8432483628e..c83e3c0aa30b 100644 --- a/include/asm-sparc/Kbuild +++ b/include/asm-sparc/Kbuild @@ -6,6 +6,7 @@ header-y += bpp.h header-y += display7seg.h header-y += envctrl.h header-y += jsflash.h +header-y += openprom.h header-y += openpromio.h header-y += psrcompat.h header-y += pstate.h diff --git a/include/asm-sparc/openprom.h b/include/asm-sparc/openprom.h index ed4b6bc2b102..e812cf3b0de7 100644 --- a/include/asm-sparc/openprom.h +++ b/include/asm-sparc/openprom.h @@ -7,8 +7,6 @@ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ -#include - /* Empirical constants... */ #define LINUX_OPPROM_MAGIC 0x10010407 diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h index 60512296b2ca..b63ac6b4119f 100644 --- a/include/asm-sparc/pgtable.h +++ b/include/asm-sparc/pgtable.h @@ -8,6 +8,7 @@ * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) */ +#ifndef __ASSEMBLY__ #include #include @@ -24,7 +25,6 @@ #include #include -#ifndef __ASSEMBLY__ struct vm_area_struct; struct page; @@ -464,6 +464,11 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma, #endif /* !(__ASSEMBLY__) */ +#define VMALLOC_START 0xfe600000 +/* XXX Alter this when I get around to fixing sun4c - Anton */ +#define VMALLOC_END 0xffc00000 + + /* We provide our own get_unmapped_area to cope with VA holes for userland */ #define HAVE_ARCH_UNMAPPED_AREA diff --git a/include/asm-sparc/vaddrs.h b/include/asm-sparc/vaddrs.h index f6ca4779056c..a22fed5a3c6b 100644 --- a/include/asm-sparc/vaddrs.h +++ b/include/asm-sparc/vaddrs.h @@ -34,11 +34,6 @@ #define IOBASE_VADDR 0xfe000000 #define IOBASE_END 0xfe600000 -#define VMALLOC_START 0xfe600000 - -/* XXX Alter this when I get around to fixing sun4c - Anton */ -#define VMALLOC_END 0xffc00000 - /* * On the sun4/4c we need a place * to reliably map locked down kernel data. This includes the -- cgit v1.2.3 From bdc3135ac99efd59de084a309751ec76887e62d8 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 13 Jun 2008 21:49:07 +0200 Subject: sparc: Merge asm-sparc{,64}/asi.h Joined the two files as they contain distinct definitions. Inspired by patch from: Adrian Bunk Signed-off-by: Sam Ravnborg Cc: Adrian Bunk --- include/asm-sparc/asi.h | 153 ++++++++++++++++++++++++++++++++++++++++++- include/asm-sparc64/asi.h | 161 +--------------------------------------------- 2 files changed, 153 insertions(+), 161 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/asi.h b/include/asm-sparc/asi.h index 158f9b00d43f..74703c5ef985 100644 --- a/include/asm-sparc/asi.h +++ b/include/asm-sparc/asi.h @@ -3,7 +3,7 @@ /* asi.h: Address Space Identifier values for the sparc. * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) * * Pioneer work for sun4m: Paul Hatchman (paul@sfe.com.au) * Joint edition for sun4c+sun4m: Pete A. Zaitcev @@ -108,4 +108,155 @@ #define ASI_M_ACTION 0x4c /* Breakpoint Action Register (GNU/Viking) */ +/* V9 Architecture mandary ASIs. */ +#define ASI_N 0x04 /* Nucleus */ +#define ASI_NL 0x0c /* Nucleus, little endian */ +#define ASI_AIUP 0x10 /* Primary, user */ +#define ASI_AIUS 0x11 /* Secondary, user */ +#define ASI_AIUPL 0x18 /* Primary, user, little endian */ +#define ASI_AIUSL 0x19 /* Secondary, user, little endian */ +#define ASI_P 0x80 /* Primary, implicit */ +#define ASI_S 0x81 /* Secondary, implicit */ +#define ASI_PNF 0x82 /* Primary, no fault */ +#define ASI_SNF 0x83 /* Secondary, no fault */ +#define ASI_PL 0x88 /* Primary, implicit, l-endian */ +#define ASI_SL 0x89 /* Secondary, implicit, l-endian */ +#define ASI_PNFL 0x8a /* Primary, no fault, l-endian */ +#define ASI_SNFL 0x8b /* Secondary, no fault, l-endian */ + +/* SpitFire and later extended ASIs. The "(III)" marker designates + * UltraSparc-III and later specific ASIs. The "(CMT)" marker designates + * Chip Multi Threading specific ASIs. "(NG)" designates Niagara specific + * ASIs, "(4V)" designates SUN4V specific ASIs. + */ +#define ASI_PHYS_USE_EC 0x14 /* PADDR, E-cachable */ +#define ASI_PHYS_BYPASS_EC_E 0x15 /* PADDR, E-bit */ +#define ASI_BLK_AIUP_4V 0x16 /* (4V) Prim, user, block ld/st */ +#define ASI_BLK_AIUS_4V 0x17 /* (4V) Sec, user, block ld/st */ +#define ASI_PHYS_USE_EC_L 0x1c /* PADDR, E-cachable, little endian*/ +#define ASI_PHYS_BYPASS_EC_E_L 0x1d /* PADDR, E-bit, little endian */ +#define ASI_BLK_AIUP_L_4V 0x1e /* (4V) Prim, user, block, l-endian*/ +#define ASI_BLK_AIUS_L_4V 0x1f /* (4V) Sec, user, block, l-endian */ +#define ASI_SCRATCHPAD 0x20 /* (4V) Scratch Pad Registers */ +#define ASI_MMU 0x21 /* (4V) MMU Context Registers */ +#define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23 /* (NG) init-store, twin load, + * secondary, user + */ +#define ASI_NUCLEUS_QUAD_LDD 0x24 /* Cachable, qword load */ +#define ASI_QUEUE 0x25 /* (4V) Interrupt Queue Registers */ +#define ASI_QUAD_LDD_PHYS_4V 0x26 /* (4V) Physical, qword load */ +#define ASI_NUCLEUS_QUAD_LDD_L 0x2c /* Cachable, qword load, l-endian */ +#define ASI_QUAD_LDD_PHYS_L_4V 0x2e /* (4V) Phys, qword load, l-endian */ +#define ASI_PCACHE_DATA_STATUS 0x30 /* (III) PCache data stat RAM diag */ +#define ASI_PCACHE_DATA 0x31 /* (III) PCache data RAM diag */ +#define ASI_PCACHE_TAG 0x32 /* (III) PCache tag RAM diag */ +#define ASI_PCACHE_SNOOP_TAG 0x33 /* (III) PCache snoop tag RAM diag */ +#define ASI_QUAD_LDD_PHYS 0x34 /* (III+) PADDR, qword load */ +#define ASI_WCACHE_VALID_BITS 0x38 /* (III) WCache Valid Bits diag */ +#define ASI_WCACHE_DATA 0x39 /* (III) WCache data RAM diag */ +#define ASI_WCACHE_TAG 0x3a /* (III) WCache tag RAM diag */ +#define ASI_WCACHE_SNOOP_TAG 0x3b /* (III) WCache snoop tag RAM diag */ +#define ASI_QUAD_LDD_PHYS_L 0x3c /* (III+) PADDR, qw-load, l-endian */ +#define ASI_SRAM_FAST_INIT 0x40 /* (III+) Fast SRAM init */ +#define ASI_CORE_AVAILABLE 0x41 /* (CMT) LP Available */ +#define ASI_CORE_ENABLE_STAT 0x41 /* (CMT) LP Enable Status */ +#define ASI_CORE_ENABLE 0x41 /* (CMT) LP Enable RW */ +#define ASI_XIR_STEERING 0x41 /* (CMT) XIR Steering RW */ +#define ASI_CORE_RUNNING_RW 0x41 /* (CMT) LP Running RW */ +#define ASI_CORE_RUNNING_W1S 0x41 /* (CMT) LP Running Write-One Set */ +#define ASI_CORE_RUNNING_W1C 0x41 /* (CMT) LP Running Write-One Clr */ +#define ASI_CORE_RUNNING_STAT 0x41 /* (CMT) LP Running Status */ +#define ASI_CMT_ERROR_STEERING 0x41 /* (CMT) Error Steering RW */ +#define ASI_DCACHE_INVALIDATE 0x42 /* (III) DCache Invalidate diag */ +#define ASI_DCACHE_UTAG 0x43 /* (III) DCache uTag diag */ +#define ASI_DCACHE_SNOOP_TAG 0x44 /* (III) DCache snoop tag RAM diag */ +#define ASI_LSU_CONTROL 0x45 /* Load-store control unit */ +#define ASI_DCU_CONTROL_REG 0x45 /* (III) DCache Unit Control reg */ +#define ASI_DCACHE_DATA 0x46 /* DCache data-ram diag access */ +#define ASI_DCACHE_TAG 0x47 /* Dcache tag/valid ram diag access*/ +#define ASI_INTR_DISPATCH_STAT 0x48 /* IRQ vector dispatch status */ +#define ASI_INTR_RECEIVE 0x49 /* IRQ vector receive status */ +#define ASI_UPA_CONFIG 0x4a /* UPA config space */ +#define ASI_JBUS_CONFIG 0x4a /* (IIIi) JBUS Config Register */ +#define ASI_SAFARI_CONFIG 0x4a /* (III) Safari Config Register */ +#define ASI_SAFARI_ADDRESS 0x4a /* (III) Safari Address Register */ +#define ASI_ESTATE_ERROR_EN 0x4b /* E-cache error enable space */ +#define ASI_AFSR 0x4c /* Async fault status register */ +#define ASI_AFAR 0x4d /* Async fault address register */ +#define ASI_EC_TAG_DATA 0x4e /* E-cache tag/valid ram diag acc */ +#define ASI_IMMU 0x50 /* Insn-MMU main register space */ +#define ASI_IMMU_TSB_8KB_PTR 0x51 /* Insn-MMU 8KB TSB pointer reg */ +#define ASI_IMMU_TSB_64KB_PTR 0x52 /* Insn-MMU 64KB TSB pointer reg */ +#define ASI_ITLB_DATA_IN 0x54 /* Insn-MMU TLB data in reg */ +#define ASI_ITLB_DATA_ACCESS 0x55 /* Insn-MMU TLB data access reg */ +#define ASI_ITLB_TAG_READ 0x56 /* Insn-MMU TLB tag read reg */ +#define ASI_IMMU_DEMAP 0x57 /* Insn-MMU TLB demap */ +#define ASI_DMMU 0x58 /* Data-MMU main register space */ +#define ASI_DMMU_TSB_8KB_PTR 0x59 /* Data-MMU 8KB TSB pointer reg */ +#define ASI_DMMU_TSB_64KB_PTR 0x5a /* Data-MMU 16KB TSB pointer reg */ +#define ASI_DMMU_TSB_DIRECT_PTR 0x5b /* Data-MMU TSB direct pointer reg */ +#define ASI_DTLB_DATA_IN 0x5c /* Data-MMU TLB data in reg */ +#define ASI_DTLB_DATA_ACCESS 0x5d /* Data-MMU TLB data access reg */ +#define ASI_DTLB_TAG_READ 0x5e /* Data-MMU TLB tag read reg */ +#define ASI_DMMU_DEMAP 0x5f /* Data-MMU TLB demap */ +#define ASI_IIU_INST_TRAP 0x60 /* (III) Instruction Breakpoint */ +#define ASI_INTR_ID 0x63 /* (CMT) Interrupt ID register */ +#define ASI_CORE_ID 0x63 /* (CMT) LP ID register */ +#define ASI_CESR_ID 0x63 /* (CMT) CESR ID register */ +#define ASI_IC_INSTR 0x66 /* Insn cache instrucion ram diag */ +#define ASI_IC_TAG 0x67 /* Insn cache tag/valid ram diag */ +#define ASI_IC_STAG 0x68 /* (III) Insn cache snoop tag ram */ +#define ASI_IC_PRE_DECODE 0x6e /* Insn cache pre-decode ram diag */ +#define ASI_IC_NEXT_FIELD 0x6f /* Insn cache next-field ram diag */ +#define ASI_BRPRED_ARRAY 0x6f /* (III) Branch Prediction RAM diag*/ +#define ASI_BLK_AIUP 0x70 /* Primary, user, block load/store */ +#define ASI_BLK_AIUS 0x71 /* Secondary, user, block ld/st */ +#define ASI_MCU_CTRL_REG 0x72 /* (III) Memory controller regs */ +#define ASI_EC_DATA 0x74 /* (III) E-cache data staging reg */ +#define ASI_EC_CTRL 0x75 /* (III) E-cache control reg */ +#define ASI_EC_W 0x76 /* E-cache diag write access */ +#define ASI_UDB_ERROR_W 0x77 /* External UDB error regs W */ +#define ASI_UDB_CONTROL_W 0x77 /* External UDB control regs W */ +#define ASI_INTR_W 0x77 /* IRQ vector dispatch write */ +#define ASI_INTR_DATAN_W 0x77 /* (III) Out irq vector data reg N */ +#define ASI_INTR_DISPATCH_W 0x77 /* (III) Interrupt vector dispatch */ +#define ASI_BLK_AIUPL 0x78 /* Primary, user, little, blk ld/st*/ +#define ASI_BLK_AIUSL 0x79 /* Secondary, user, little, blk ld/st*/ +#define ASI_EC_R 0x7e /* E-cache diag read access */ +#define ASI_UDBH_ERROR_R 0x7f /* External UDB error regs rd hi */ +#define ASI_UDBL_ERROR_R 0x7f /* External UDB error regs rd low */ +#define ASI_UDBH_CONTROL_R 0x7f /* External UDB control regs rd hi */ +#define ASI_UDBL_CONTROL_R 0x7f /* External UDB control regs rd low*/ +#define ASI_INTR_R 0x7f /* IRQ vector dispatch read */ +#define ASI_INTR_DATAN_R 0x7f /* (III) In irq vector data reg N */ +#define ASI_PST8_P 0xc0 /* Primary, 8 8-bit, partial */ +#define ASI_PST8_S 0xc1 /* Secondary, 8 8-bit, partial */ +#define ASI_PST16_P 0xc2 /* Primary, 4 16-bit, partial */ +#define ASI_PST16_S 0xc3 /* Secondary, 4 16-bit, partial */ +#define ASI_PST32_P 0xc4 /* Primary, 2 32-bit, partial */ +#define ASI_PST32_S 0xc5 /* Secondary, 2 32-bit, partial */ +#define ASI_PST8_PL 0xc8 /* Primary, 8 8-bit, partial, L */ +#define ASI_PST8_SL 0xc9 /* Secondary, 8 8-bit, partial, L */ +#define ASI_PST16_PL 0xca /* Primary, 4 16-bit, partial, L */ +#define ASI_PST16_SL 0xcb /* Secondary, 4 16-bit, partial, L */ +#define ASI_PST32_PL 0xcc /* Primary, 2 32-bit, partial, L */ +#define ASI_PST32_SL 0xcd /* Secondary, 2 32-bit, partial, L */ +#define ASI_FL8_P 0xd0 /* Primary, 1 8-bit, fpu ld/st */ +#define ASI_FL8_S 0xd1 /* Secondary, 1 8-bit, fpu ld/st */ +#define ASI_FL16_P 0xd2 /* Primary, 1 16-bit, fpu ld/st */ +#define ASI_FL16_S 0xd3 /* Secondary, 1 16-bit, fpu ld/st */ +#define ASI_FL8_PL 0xd8 /* Primary, 1 8-bit, fpu ld/st, L */ +#define ASI_FL8_SL 0xd9 /* Secondary, 1 8-bit, fpu ld/st, L*/ +#define ASI_FL16_PL 0xda /* Primary, 1 16-bit, fpu ld/st, L */ +#define ASI_FL16_SL 0xdb /* Secondary, 1 16-bit, fpu ld/st,L*/ +#define ASI_BLK_COMMIT_P 0xe0 /* Primary, blk store commit */ +#define ASI_BLK_COMMIT_S 0xe1 /* Secondary, blk store commit */ +#define ASI_BLK_INIT_QUAD_LDD_P 0xe2 /* (NG) init-store, twin load, + * primary, implicit + */ +#define ASI_BLK_P 0xf0 /* Primary, blk ld/st */ +#define ASI_BLK_S 0xf1 /* Secondary, blk ld/st */ +#define ASI_BLK_PL 0xf8 /* Primary, blk ld/st, little */ +#define ASI_BLK_SL 0xf9 /* Secondary, blk ld/st, little */ + #endif /* _SPARC_ASI_H */ diff --git a/include/asm-sparc64/asi.h b/include/asm-sparc64/asi.h index bc57c405e7d3..9b7110c516e8 100644 --- a/include/asm-sparc64/asi.h +++ b/include/asm-sparc64/asi.h @@ -1,160 +1 @@ -#ifndef _SPARC64_ASI_H -#define _SPARC64_ASI_H - -/* asi.h: Address Space Identifier values for the V9. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -/* V9 Architecture mandary ASIs. */ -#define ASI_N 0x04 /* Nucleus */ -#define ASI_NL 0x0c /* Nucleus, little endian */ -#define ASI_AIUP 0x10 /* Primary, user */ -#define ASI_AIUS 0x11 /* Secondary, user */ -#define ASI_AIUPL 0x18 /* Primary, user, little endian */ -#define ASI_AIUSL 0x19 /* Secondary, user, little endian */ -#define ASI_P 0x80 /* Primary, implicit */ -#define ASI_S 0x81 /* Secondary, implicit */ -#define ASI_PNF 0x82 /* Primary, no fault */ -#define ASI_SNF 0x83 /* Secondary, no fault */ -#define ASI_PL 0x88 /* Primary, implicit, l-endian */ -#define ASI_SL 0x89 /* Secondary, implicit, l-endian */ -#define ASI_PNFL 0x8a /* Primary, no fault, l-endian */ -#define ASI_SNFL 0x8b /* Secondary, no fault, l-endian */ - -/* SpitFire and later extended ASIs. The "(III)" marker designates - * UltraSparc-III and later specific ASIs. The "(CMT)" marker designates - * Chip Multi Threading specific ASIs. "(NG)" designates Niagara specific - * ASIs, "(4V)" designates SUN4V specific ASIs. - */ -#define ASI_PHYS_USE_EC 0x14 /* PADDR, E-cachable */ -#define ASI_PHYS_BYPASS_EC_E 0x15 /* PADDR, E-bit */ -#define ASI_BLK_AIUP_4V 0x16 /* (4V) Prim, user, block ld/st */ -#define ASI_BLK_AIUS_4V 0x17 /* (4V) Sec, user, block ld/st */ -#define ASI_PHYS_USE_EC_L 0x1c /* PADDR, E-cachable, little endian*/ -#define ASI_PHYS_BYPASS_EC_E_L 0x1d /* PADDR, E-bit, little endian */ -#define ASI_BLK_AIUP_L_4V 0x1e /* (4V) Prim, user, block, l-endian*/ -#define ASI_BLK_AIUS_L_4V 0x1f /* (4V) Sec, user, block, l-endian */ -#define ASI_SCRATCHPAD 0x20 /* (4V) Scratch Pad Registers */ -#define ASI_MMU 0x21 /* (4V) MMU Context Registers */ -#define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23 /* (NG) init-store, twin load, - * secondary, user - */ -#define ASI_NUCLEUS_QUAD_LDD 0x24 /* Cachable, qword load */ -#define ASI_QUEUE 0x25 /* (4V) Interrupt Queue Registers */ -#define ASI_QUAD_LDD_PHYS_4V 0x26 /* (4V) Physical, qword load */ -#define ASI_NUCLEUS_QUAD_LDD_L 0x2c /* Cachable, qword load, l-endian */ -#define ASI_QUAD_LDD_PHYS_L_4V 0x2e /* (4V) Phys, qword load, l-endian */ -#define ASI_PCACHE_DATA_STATUS 0x30 /* (III) PCache data stat RAM diag */ -#define ASI_PCACHE_DATA 0x31 /* (III) PCache data RAM diag */ -#define ASI_PCACHE_TAG 0x32 /* (III) PCache tag RAM diag */ -#define ASI_PCACHE_SNOOP_TAG 0x33 /* (III) PCache snoop tag RAM diag */ -#define ASI_QUAD_LDD_PHYS 0x34 /* (III+) PADDR, qword load */ -#define ASI_WCACHE_VALID_BITS 0x38 /* (III) WCache Valid Bits diag */ -#define ASI_WCACHE_DATA 0x39 /* (III) WCache data RAM diag */ -#define ASI_WCACHE_TAG 0x3a /* (III) WCache tag RAM diag */ -#define ASI_WCACHE_SNOOP_TAG 0x3b /* (III) WCache snoop tag RAM diag */ -#define ASI_QUAD_LDD_PHYS_L 0x3c /* (III+) PADDR, qw-load, l-endian */ -#define ASI_SRAM_FAST_INIT 0x40 /* (III+) Fast SRAM init */ -#define ASI_CORE_AVAILABLE 0x41 /* (CMT) LP Available */ -#define ASI_CORE_ENABLE_STAT 0x41 /* (CMT) LP Enable Status */ -#define ASI_CORE_ENABLE 0x41 /* (CMT) LP Enable RW */ -#define ASI_XIR_STEERING 0x41 /* (CMT) XIR Steering RW */ -#define ASI_CORE_RUNNING_RW 0x41 /* (CMT) LP Running RW */ -#define ASI_CORE_RUNNING_W1S 0x41 /* (CMT) LP Running Write-One Set */ -#define ASI_CORE_RUNNING_W1C 0x41 /* (CMT) LP Running Write-One Clr */ -#define ASI_CORE_RUNNING_STAT 0x41 /* (CMT) LP Running Status */ -#define ASI_CMT_ERROR_STEERING 0x41 /* (CMT) Error Steering RW */ -#define ASI_DCACHE_INVALIDATE 0x42 /* (III) DCache Invalidate diag */ -#define ASI_DCACHE_UTAG 0x43 /* (III) DCache uTag diag */ -#define ASI_DCACHE_SNOOP_TAG 0x44 /* (III) DCache snoop tag RAM diag */ -#define ASI_LSU_CONTROL 0x45 /* Load-store control unit */ -#define ASI_DCU_CONTROL_REG 0x45 /* (III) DCache Unit Control reg */ -#define ASI_DCACHE_DATA 0x46 /* DCache data-ram diag access */ -#define ASI_DCACHE_TAG 0x47 /* Dcache tag/valid ram diag access*/ -#define ASI_INTR_DISPATCH_STAT 0x48 /* IRQ vector dispatch status */ -#define ASI_INTR_RECEIVE 0x49 /* IRQ vector receive status */ -#define ASI_UPA_CONFIG 0x4a /* UPA config space */ -#define ASI_JBUS_CONFIG 0x4a /* (IIIi) JBUS Config Register */ -#define ASI_SAFARI_CONFIG 0x4a /* (III) Safari Config Register */ -#define ASI_SAFARI_ADDRESS 0x4a /* (III) Safari Address Register */ -#define ASI_ESTATE_ERROR_EN 0x4b /* E-cache error enable space */ -#define ASI_AFSR 0x4c /* Async fault status register */ -#define ASI_AFAR 0x4d /* Async fault address register */ -#define ASI_EC_TAG_DATA 0x4e /* E-cache tag/valid ram diag acc */ -#define ASI_IMMU 0x50 /* Insn-MMU main register space */ -#define ASI_IMMU_TSB_8KB_PTR 0x51 /* Insn-MMU 8KB TSB pointer reg */ -#define ASI_IMMU_TSB_64KB_PTR 0x52 /* Insn-MMU 64KB TSB pointer reg */ -#define ASI_ITLB_DATA_IN 0x54 /* Insn-MMU TLB data in reg */ -#define ASI_ITLB_DATA_ACCESS 0x55 /* Insn-MMU TLB data access reg */ -#define ASI_ITLB_TAG_READ 0x56 /* Insn-MMU TLB tag read reg */ -#define ASI_IMMU_DEMAP 0x57 /* Insn-MMU TLB demap */ -#define ASI_DMMU 0x58 /* Data-MMU main register space */ -#define ASI_DMMU_TSB_8KB_PTR 0x59 /* Data-MMU 8KB TSB pointer reg */ -#define ASI_DMMU_TSB_64KB_PTR 0x5a /* Data-MMU 16KB TSB pointer reg */ -#define ASI_DMMU_TSB_DIRECT_PTR 0x5b /* Data-MMU TSB direct pointer reg */ -#define ASI_DTLB_DATA_IN 0x5c /* Data-MMU TLB data in reg */ -#define ASI_DTLB_DATA_ACCESS 0x5d /* Data-MMU TLB data access reg */ -#define ASI_DTLB_TAG_READ 0x5e /* Data-MMU TLB tag read reg */ -#define ASI_DMMU_DEMAP 0x5f /* Data-MMU TLB demap */ -#define ASI_IIU_INST_TRAP 0x60 /* (III) Instruction Breakpoint */ -#define ASI_INTR_ID 0x63 /* (CMT) Interrupt ID register */ -#define ASI_CORE_ID 0x63 /* (CMT) LP ID register */ -#define ASI_CESR_ID 0x63 /* (CMT) CESR ID register */ -#define ASI_IC_INSTR 0x66 /* Insn cache instrucion ram diag */ -#define ASI_IC_TAG 0x67 /* Insn cache tag/valid ram diag */ -#define ASI_IC_STAG 0x68 /* (III) Insn cache snoop tag ram */ -#define ASI_IC_PRE_DECODE 0x6e /* Insn cache pre-decode ram diag */ -#define ASI_IC_NEXT_FIELD 0x6f /* Insn cache next-field ram diag */ -#define ASI_BRPRED_ARRAY 0x6f /* (III) Branch Prediction RAM diag*/ -#define ASI_BLK_AIUP 0x70 /* Primary, user, block load/store */ -#define ASI_BLK_AIUS 0x71 /* Secondary, user, block ld/st */ -#define ASI_MCU_CTRL_REG 0x72 /* (III) Memory controller regs */ -#define ASI_EC_DATA 0x74 /* (III) E-cache data staging reg */ -#define ASI_EC_CTRL 0x75 /* (III) E-cache control reg */ -#define ASI_EC_W 0x76 /* E-cache diag write access */ -#define ASI_UDB_ERROR_W 0x77 /* External UDB error regs W */ -#define ASI_UDB_CONTROL_W 0x77 /* External UDB control regs W */ -#define ASI_INTR_W 0x77 /* IRQ vector dispatch write */ -#define ASI_INTR_DATAN_W 0x77 /* (III) Out irq vector data reg N */ -#define ASI_INTR_DISPATCH_W 0x77 /* (III) Interrupt vector dispatch */ -#define ASI_BLK_AIUPL 0x78 /* Primary, user, little, blk ld/st*/ -#define ASI_BLK_AIUSL 0x79 /* Secondary, user, little, blk ld/st*/ -#define ASI_EC_R 0x7e /* E-cache diag read access */ -#define ASI_UDBH_ERROR_R 0x7f /* External UDB error regs rd hi */ -#define ASI_UDBL_ERROR_R 0x7f /* External UDB error regs rd low */ -#define ASI_UDBH_CONTROL_R 0x7f /* External UDB control regs rd hi */ -#define ASI_UDBL_CONTROL_R 0x7f /* External UDB control regs rd low*/ -#define ASI_INTR_R 0x7f /* IRQ vector dispatch read */ -#define ASI_INTR_DATAN_R 0x7f /* (III) In irq vector data reg N */ -#define ASI_PST8_P 0xc0 /* Primary, 8 8-bit, partial */ -#define ASI_PST8_S 0xc1 /* Secondary, 8 8-bit, partial */ -#define ASI_PST16_P 0xc2 /* Primary, 4 16-bit, partial */ -#define ASI_PST16_S 0xc3 /* Secondary, 4 16-bit, partial */ -#define ASI_PST32_P 0xc4 /* Primary, 2 32-bit, partial */ -#define ASI_PST32_S 0xc5 /* Secondary, 2 32-bit, partial */ -#define ASI_PST8_PL 0xc8 /* Primary, 8 8-bit, partial, L */ -#define ASI_PST8_SL 0xc9 /* Secondary, 8 8-bit, partial, L */ -#define ASI_PST16_PL 0xca /* Primary, 4 16-bit, partial, L */ -#define ASI_PST16_SL 0xcb /* Secondary, 4 16-bit, partial, L */ -#define ASI_PST32_PL 0xcc /* Primary, 2 32-bit, partial, L */ -#define ASI_PST32_SL 0xcd /* Secondary, 2 32-bit, partial, L */ -#define ASI_FL8_P 0xd0 /* Primary, 1 8-bit, fpu ld/st */ -#define ASI_FL8_S 0xd1 /* Secondary, 1 8-bit, fpu ld/st */ -#define ASI_FL16_P 0xd2 /* Primary, 1 16-bit, fpu ld/st */ -#define ASI_FL16_S 0xd3 /* Secondary, 1 16-bit, fpu ld/st */ -#define ASI_FL8_PL 0xd8 /* Primary, 1 8-bit, fpu ld/st, L */ -#define ASI_FL8_SL 0xd9 /* Secondary, 1 8-bit, fpu ld/st, L*/ -#define ASI_FL16_PL 0xda /* Primary, 1 16-bit, fpu ld/st, L */ -#define ASI_FL16_SL 0xdb /* Secondary, 1 16-bit, fpu ld/st,L*/ -#define ASI_BLK_COMMIT_P 0xe0 /* Primary, blk store commit */ -#define ASI_BLK_COMMIT_S 0xe1 /* Secondary, blk store commit */ -#define ASI_BLK_INIT_QUAD_LDD_P 0xe2 /* (NG) init-store, twin load, - * primary, implicit - */ -#define ASI_BLK_P 0xf0 /* Primary, blk ld/st */ -#define ASI_BLK_S 0xf1 /* Secondary, blk ld/st */ -#define ASI_BLK_PL 0xf8 /* Primary, blk ld/st, little */ -#define ASI_BLK_SL 0xf9 /* Secondary, blk ld/st, little */ - -#endif /* _SPARC64_ASI_H */ +#include -- cgit v1.2.3 From a00736e936c2a1e9c36f22f6f3a69392eaab51f4 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 19 Jun 2008 20:26:19 +0200 Subject: sparc: copy sparc64 specific files to asm-sparc Used the following script to copy the files: cd include set -e SPARC64=`ls asm-sparc64` for FILE in ${SPARC64}; do if [ -f asm-sparc/$FILE ]; then echo $FILE exist in asm-sparc else git mv asm-sparc64/$FILE asm-sparc/$FILE printf "#include \n" > asm-sparc64/$FILE git add asm-sparc64/$FILE fi done Signed-off-by: Sam Ravnborg --- include/asm-sparc/agp.h | 20 + include/asm-sparc/apb.h | 36 + include/asm-sparc/backoff.h | 31 + include/asm-sparc/bbc.h | 225 +++ include/asm-sparc/chafsr.h | 241 +++ include/asm-sparc/chmctrl.h | 183 +++ include/asm-sparc/cmt.h | 59 + include/asm-sparc/compat.h | 243 +++ include/asm-sparc/compat_signal.h | 29 + include/asm-sparc/dcr.h | 14 + include/asm-sparc/dcu.h | 27 + include/asm-sparc/estate.h | 49 + include/asm-sparc/fhc.h | 121 ++ include/asm-sparc/fpumacro.h | 33 + include/asm-sparc/hugetlb.h | 84 + include/asm-sparc/hvtramp.h | 37 + include/asm-sparc/hypervisor.h | 2945 ++++++++++++++++++++++++++++++++++ include/asm-sparc/intr_queue.h | 15 + include/asm-sparc/kprobes.h | 49 + include/asm-sparc/ldc.h | 138 ++ include/asm-sparc/lmb.h | 10 + include/asm-sparc/lsu.h | 19 + include/asm-sparc/mdesc.h | 78 + include/asm-sparc/mmzone.h | 17 + include/asm-sparc/ns87303.h | 118 ++ include/asm-sparc/parport.h | 246 +++ include/asm-sparc/pil.h | 21 + include/asm-sparc/reboot.h | 6 + include/asm-sparc/rwsem-const.h | 12 + include/asm-sparc/rwsem.h | 84 + include/asm-sparc/scratchpad.h | 14 + include/asm-sparc/seccomp.h | 21 + include/asm-sparc/sfafsr.h | 82 + include/asm-sparc/sparsemem.h | 12 + include/asm-sparc/spitfire.h | 342 ++++ include/asm-sparc/sstate.h | 13 + include/asm-sparc/stacktrace.h | 6 + include/asm-sparc/starfire.h | 21 + include/asm-sparc/syscalls.h | 13 + include/asm-sparc/tsb.h | 283 ++++ include/asm-sparc/ttable.h | 658 ++++++++ include/asm-sparc/upa.h | 109 ++ include/asm-sparc/vio.h | 406 +++++ include/asm-sparc/visasm.h | 62 + include/asm-sparc64/agp.h | 21 +- include/asm-sparc64/apb.h | 37 +- include/asm-sparc64/backoff.h | 32 +- include/asm-sparc64/bbc.h | 226 +-- include/asm-sparc64/chafsr.h | 242 +-- include/asm-sparc64/chmctrl.h | 184 +-- include/asm-sparc64/cmt.h | 60 +- include/asm-sparc64/compat.h | 244 +-- include/asm-sparc64/compat_signal.h | 30 +- include/asm-sparc64/dcr.h | 15 +- include/asm-sparc64/dcu.h | 28 +- include/asm-sparc64/estate.h | 50 +- include/asm-sparc64/fhc.h | 122 +- include/asm-sparc64/fpumacro.h | 34 +- include/asm-sparc64/hugetlb.h | 85 +- include/asm-sparc64/hvtramp.h | 38 +- include/asm-sparc64/hypervisor.h | 2946 +---------------------------------- include/asm-sparc64/intr_queue.h | 16 +- include/asm-sparc64/kprobes.h | 50 +- include/asm-sparc64/ldc.h | 139 +- include/asm-sparc64/lmb.h | 11 +- include/asm-sparc64/lsu.h | 20 +- include/asm-sparc64/mdesc.h | 79 +- include/asm-sparc64/mmzone.h | 18 +- include/asm-sparc64/ns87303.h | 119 +- include/asm-sparc64/parport.h | 247 +-- include/asm-sparc64/pil.h | 22 +- include/asm-sparc64/reboot.h | 7 +- include/asm-sparc64/rwsem-const.h | 13 +- include/asm-sparc64/rwsem.h | 85 +- include/asm-sparc64/scratchpad.h | 15 +- include/asm-sparc64/seccomp.h | 22 +- include/asm-sparc64/sfafsr.h | 83 +- include/asm-sparc64/sparsemem.h | 13 +- include/asm-sparc64/spitfire.h | 343 +--- include/asm-sparc64/sstate.h | 14 +- include/asm-sparc64/stacktrace.h | 7 +- include/asm-sparc64/starfire.h | 22 +- include/asm-sparc64/syscalls.h | 14 +- include/asm-sparc64/tsb.h | 284 +--- include/asm-sparc64/ttable.h | 659 +------- include/asm-sparc64/upa.h | 110 +- include/asm-sparc64/vio.h | 407 +---- include/asm-sparc64/visasm.h | 63 +- 88 files changed, 7276 insertions(+), 7232 deletions(-) create mode 100644 include/asm-sparc/agp.h create mode 100644 include/asm-sparc/apb.h create mode 100644 include/asm-sparc/backoff.h create mode 100644 include/asm-sparc/bbc.h create mode 100644 include/asm-sparc/chafsr.h create mode 100644 include/asm-sparc/chmctrl.h create mode 100644 include/asm-sparc/cmt.h create mode 100644 include/asm-sparc/compat.h create mode 100644 include/asm-sparc/compat_signal.h create mode 100644 include/asm-sparc/dcr.h create mode 100644 include/asm-sparc/dcu.h create mode 100644 include/asm-sparc/estate.h create mode 100644 include/asm-sparc/fhc.h create mode 100644 include/asm-sparc/fpumacro.h create mode 100644 include/asm-sparc/hugetlb.h create mode 100644 include/asm-sparc/hvtramp.h create mode 100644 include/asm-sparc/hypervisor.h create mode 100644 include/asm-sparc/intr_queue.h create mode 100644 include/asm-sparc/kprobes.h create mode 100644 include/asm-sparc/ldc.h create mode 100644 include/asm-sparc/lmb.h create mode 100644 include/asm-sparc/lsu.h create mode 100644 include/asm-sparc/mdesc.h create mode 100644 include/asm-sparc/mmzone.h create mode 100644 include/asm-sparc/ns87303.h create mode 100644 include/asm-sparc/parport.h create mode 100644 include/asm-sparc/pil.h create mode 100644 include/asm-sparc/reboot.h create mode 100644 include/asm-sparc/rwsem-const.h create mode 100644 include/asm-sparc/rwsem.h create mode 100644 include/asm-sparc/scratchpad.h create mode 100644 include/asm-sparc/seccomp.h create mode 100644 include/asm-sparc/sfafsr.h create mode 100644 include/asm-sparc/sparsemem.h create mode 100644 include/asm-sparc/spitfire.h create mode 100644 include/asm-sparc/sstate.h create mode 100644 include/asm-sparc/stacktrace.h create mode 100644 include/asm-sparc/starfire.h create mode 100644 include/asm-sparc/syscalls.h create mode 100644 include/asm-sparc/tsb.h create mode 100644 include/asm-sparc/ttable.h create mode 100644 include/asm-sparc/upa.h create mode 100644 include/asm-sparc/vio.h create mode 100644 include/asm-sparc/visasm.h (limited to 'include') diff --git a/include/asm-sparc/agp.h b/include/asm-sparc/agp.h new file mode 100644 index 000000000000..c2456870b05c --- /dev/null +++ b/include/asm-sparc/agp.h @@ -0,0 +1,20 @@ +#ifndef AGP_H +#define AGP_H 1 + +/* dummy for now */ + +#define map_page_into_agp(page) +#define unmap_page_from_agp(page) +#define flush_agp_cache() mb() + +/* Convert a physical address to an address suitable for the GART. */ +#define phys_to_gart(x) (x) +#define gart_to_phys(x) (x) + +/* GATT allocation. Returns/accepts GATT kernel virtual address. */ +#define alloc_gatt_pages(order) \ + ((char *)__get_free_pages(GFP_KERNEL, (order))) +#define free_gatt_pages(table, order) \ + free_pages((unsigned long)(table), (order)) + +#endif diff --git a/include/asm-sparc/apb.h b/include/asm-sparc/apb.h new file mode 100644 index 000000000000..8f3b57db810f --- /dev/null +++ b/include/asm-sparc/apb.h @@ -0,0 +1,36 @@ +/* + * apb.h: Advanced PCI Bridge Configuration Registers and Bits + * + * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) + */ + +#ifndef _SPARC64_APB_H +#define _SPARC64_APB_H + +#define APB_TICK_REGISTER 0xb0 +#define APB_INT_ACK 0xb8 +#define APB_PRIMARY_MASTER_RETRY_LIMIT 0xc0 +#define APB_DMA_ASFR 0xc8 +#define APB_DMA_AFAR 0xd0 +#define APB_PIO_TARGET_RETRY_LIMIT 0xd8 +#define APB_PIO_TARGET_LATENCY_TIMER 0xd9 +#define APB_DMA_TARGET_RETRY_LIMIT 0xda +#define APB_DMA_TARGET_LATENCY_TIMER 0xdb +#define APB_SECONDARY_MASTER_RETRY_LIMIT 0xdc +#define APB_SECONDARY_CONTROL 0xdd +#define APB_IO_ADDRESS_MAP 0xde +#define APB_MEM_ADDRESS_MAP 0xdf + +#define APB_PCI_CONTROL_LOW 0xe0 +# define APB_PCI_CTL_LOW_ARB_PARK (1 << 21) +# define APB_PCI_CTL_LOW_ERRINT_EN (1 << 8) + +#define APB_PCI_CONTROL_HIGH 0xe4 +# define APB_PCI_CTL_HIGH_SERR (1 << 2) +# define APB_PCI_CTL_HIGH_ARBITER_EN (1 << 0) + +#define APB_PIO_ASFR 0xe8 +#define APB_PIO_AFAR 0xf0 +#define APB_DIAG_REGISTER 0xf8 + +#endif /* !(_SPARC64_APB_H) */ diff --git a/include/asm-sparc/backoff.h b/include/asm-sparc/backoff.h new file mode 100644 index 000000000000..fa1fdf67e350 --- /dev/null +++ b/include/asm-sparc/backoff.h @@ -0,0 +1,31 @@ +#ifndef _SPARC64_BACKOFF_H +#define _SPARC64_BACKOFF_H + +#define BACKOFF_LIMIT (4 * 1024) + +#ifdef CONFIG_SMP + +#define BACKOFF_SETUP(reg) \ + mov 1, reg + +#define BACKOFF_SPIN(reg, tmp, label) \ + mov reg, tmp; \ +88: brnz,pt tmp, 88b; \ + sub tmp, 1, tmp; \ + set BACKOFF_LIMIT, tmp; \ + cmp reg, tmp; \ + bg,pn %xcc, label; \ + nop; \ + ba,pt %xcc, label; \ + sllx reg, 1, reg; + +#else + +#define BACKOFF_SETUP(reg) +#define BACKOFF_SPIN(reg, tmp, label) \ + ba,pt %xcc, label; \ + nop; + +#endif + +#endif /* _SPARC64_BACKOFF_H */ diff --git a/include/asm-sparc/bbc.h b/include/asm-sparc/bbc.h new file mode 100644 index 000000000000..423a85800aae --- /dev/null +++ b/include/asm-sparc/bbc.h @@ -0,0 +1,225 @@ +/* + * bbc.h: Defines for BootBus Controller found on UltraSPARC-III + * systems. + * + * Copyright (C) 2000 David S. Miller (davem@redhat.com) + */ + +#ifndef _SPARC64_BBC_H +#define _SPARC64_BBC_H + +/* Register sizes are indicated by "B" (Byte, 1-byte), + * "H" (Half-word, 2 bytes), "W" (Word, 4 bytes) or + * "Q" (Quad, 8 bytes) inside brackets. + */ + +#define BBC_AID 0x00 /* [B] Agent ID */ +#define BBC_DEVP 0x01 /* [B] Device Present */ +#define BBC_ARB 0x02 /* [B] Arbitration */ +#define BBC_QUIESCE 0x03 /* [B] Quiesce */ +#define BBC_WDACTION 0x04 /* [B] Watchdog Action */ +#define BBC_SPG 0x06 /* [B] Soft POR Gen */ +#define BBC_SXG 0x07 /* [B] Soft XIR Gen */ +#define BBC_PSRC 0x08 /* [W] POR Source */ +#define BBC_XSRC 0x0c /* [B] XIR Source */ +#define BBC_CSC 0x0d /* [B] Clock Synthesizers Control*/ +#define BBC_ES_CTRL 0x0e /* [H] Energy Star Control */ +#define BBC_ES_ACT 0x10 /* [W] E* Assert Change Time */ +#define BBC_ES_DACT 0x14 /* [B] E* De-Assert Change Time */ +#define BBC_ES_DABT 0x15 /* [B] E* De-Assert Bypass Time */ +#define BBC_ES_ABT 0x16 /* [H] E* Assert Bypass Time */ +#define BBC_ES_PST 0x18 /* [W] E* PLL Settle Time */ +#define BBC_ES_FSL 0x1c /* [W] E* Frequency Switch Latency*/ +#define BBC_EBUST 0x20 /* [Q] EBUS Timing */ +#define BBC_JTAG_CMD 0x28 /* [W] JTAG+ Command */ +#define BBC_JTAG_CTRL 0x2c /* [B] JTAG+ Control */ +#define BBC_I2C_SEL 0x2d /* [B] I2C Selection */ +#define BBC_I2C_0_S1 0x2e /* [B] I2C ctrlr-0 reg S1 */ +#define BBC_I2C_0_S0 0x2f /* [B] I2C ctrlr-0 regs S0,S0',S2,S3*/ +#define BBC_I2C_1_S1 0x30 /* [B] I2C ctrlr-1 reg S1 */ +#define BBC_I2C_1_S0 0x31 /* [B] I2C ctrlr-1 regs S0,S0',S2,S3*/ +#define BBC_KBD_BEEP 0x32 /* [B] Keyboard Beep */ +#define BBC_KBD_BCNT 0x34 /* [W] Keyboard Beep Counter */ + +#define BBC_REGS_SIZE 0x40 + +/* There is a 2K scratch ram area at offset 0x80000 but I doubt + * we will use it for anything. + */ + +/* Agent ID register. This register shows the Safari Agent ID + * for the processors. The value returned depends upon which + * cpu is reading the register. + */ +#define BBC_AID_ID 0x07 /* Safari ID */ +#define BBC_AID_RESV 0xf8 /* Reserved */ + +/* Device Present register. One can determine which cpus are actually + * present in the machine by interrogating this register. + */ +#define BBC_DEVP_CPU0 0x01 /* Processor 0 present */ +#define BBC_DEVP_CPU1 0x02 /* Processor 1 present */ +#define BBC_DEVP_CPU2 0x04 /* Processor 2 present */ +#define BBC_DEVP_CPU3 0x08 /* Processor 3 present */ +#define BBC_DEVP_RESV 0xf0 /* Reserved */ + +/* Arbitration register. This register is used to block access to + * the BBC from a particular cpu. + */ +#define BBC_ARB_CPU0 0x01 /* Enable cpu 0 BBC arbitratrion */ +#define BBC_ARB_CPU1 0x02 /* Enable cpu 1 BBC arbitratrion */ +#define BBC_ARB_CPU2 0x04 /* Enable cpu 2 BBC arbitratrion */ +#define BBC_ARB_CPU3 0x08 /* Enable cpu 3 BBC arbitratrion */ +#define BBC_ARB_RESV 0xf0 /* Reserved */ + +/* Quiesce register. Bus and BBC segments for cpus can be disabled + * with this register, ie. for hot plugging. + */ +#define BBC_QUIESCE_S02 0x01 /* Quiesce Safari segment for cpu 0 and 2 */ +#define BBC_QUIESCE_S13 0x02 /* Quiesce Safari segment for cpu 1 and 3 */ +#define BBC_QUIESCE_B02 0x04 /* Quiesce BBC segment for cpu 0 and 2 */ +#define BBC_QUIESCE_B13 0x08 /* Quiesce BBC segment for cpu 1 and 3 */ +#define BBC_QUIESCE_FD0 0x10 /* Disable Fatal_Error[0] reporting */ +#define BBC_QUIESCE_FD1 0x20 /* Disable Fatal_Error[1] reporting */ +#define BBC_QUIESCE_FD2 0x40 /* Disable Fatal_Error[2] reporting */ +#define BBC_QUIESCE_FD3 0x80 /* Disable Fatal_Error[3] reporting */ + +/* Watchdog Action register. When the watchdog device timer expires + * a line is enabled to the BBC. The action BBC takes when this line + * is asserted can be controlled by this regiser. + */ +#define BBC_WDACTION_RST 0x01 /* When set, watchdog causes system reset. + * When clear, BBC ignores watchdog signal. + */ +#define BBC_WDACTION_RESV 0xfe /* Reserved */ + +/* Soft_POR_GEN register. The POR (Power On Reset) signal may be asserted + * for specific processors or all processors via this register. + */ +#define BBC_SPG_CPU0 0x01 /* Assert POR for processor 0 */ +#define BBC_SPG_CPU1 0x02 /* Assert POR for processor 1 */ +#define BBC_SPG_CPU2 0x04 /* Assert POR for processor 2 */ +#define BBC_SPG_CPU3 0x08 /* Assert POR for processor 3 */ +#define BBC_SPG_CPUALL 0x10 /* Reset all processors and reset + * the entire system. + */ +#define BBC_SPG_RESV 0xe0 /* Reserved */ + +/* Soft_XIR_GEN register. The XIR (eXternally Initiated Reset) signal + * may be asserted to specific processors via this register. + */ +#define BBC_SXG_CPU0 0x01 /* Assert XIR for processor 0 */ +#define BBC_SXG_CPU1 0x02 /* Assert XIR for processor 1 */ +#define BBC_SXG_CPU2 0x04 /* Assert XIR for processor 2 */ +#define BBC_SXG_CPU3 0x08 /* Assert XIR for processor 3 */ +#define BBC_SXG_RESV 0xf0 /* Reserved */ + +/* POR Source register. One may identify the cause of the most recent + * reset by reading this register. + */ +#define BBC_PSRC_SPG0 0x0001 /* CPU 0 reset via BBC_SPG register */ +#define BBC_PSRC_SPG1 0x0002 /* CPU 1 reset via BBC_SPG register */ +#define BBC_PSRC_SPG2 0x0004 /* CPU 2 reset via BBC_SPG register */ +#define BBC_PSRC_SPG3 0x0008 /* CPU 3 reset via BBC_SPG register */ +#define BBC_PSRC_SPGSYS 0x0010 /* System reset via BBC_SPG register */ +#define BBC_PSRC_JTAG 0x0020 /* System reset via JTAG+ */ +#define BBC_PSRC_BUTTON 0x0040 /* System reset via push-button dongle */ +#define BBC_PSRC_PWRUP 0x0080 /* System reset via power-up */ +#define BBC_PSRC_FE0 0x0100 /* CPU 0 reported Fatal_Error */ +#define BBC_PSRC_FE1 0x0200 /* CPU 1 reported Fatal_Error */ +#define BBC_PSRC_FE2 0x0400 /* CPU 2 reported Fatal_Error */ +#define BBC_PSRC_FE3 0x0800 /* CPU 3 reported Fatal_Error */ +#define BBC_PSRC_FE4 0x1000 /* Schizo reported Fatal_Error */ +#define BBC_PSRC_FE5 0x2000 /* Safari device 5 reported Fatal_Error */ +#define BBC_PSRC_FE6 0x4000 /* CPMS reported Fatal_Error */ +#define BBC_PSRC_SYNTH 0x8000 /* System reset when on-board clock synthesizers + * were updated. + */ +#define BBC_PSRC_WDT 0x10000 /* System reset via Super I/O watchdog */ +#define BBC_PSRC_RSC 0x20000 /* System reset via RSC remote monitoring + * device + */ + +/* XIR Source register. The source of an XIR event sent to a processor may + * be determined via this register. + */ +#define BBC_XSRC_SXG0 0x01 /* CPU 0 received XIR via Soft_XIR_GEN reg */ +#define BBC_XSRC_SXG1 0x02 /* CPU 1 received XIR via Soft_XIR_GEN reg */ +#define BBC_XSRC_SXG2 0x04 /* CPU 2 received XIR via Soft_XIR_GEN reg */ +#define BBC_XSRC_SXG3 0x08 /* CPU 3 received XIR via Soft_XIR_GEN reg */ +#define BBC_XSRC_JTAG 0x10 /* All CPUs received XIR via JTAG+ */ +#define BBC_XSRC_W_OR_B 0x20 /* All CPUs received XIR either because: + * a) Super I/O watchdog fired, or + * b) XIR push button was activated + */ +#define BBC_XSRC_RESV 0xc0 /* Reserved */ + +/* Clock Synthesizers Control register. This register provides the big-bang + * programming interface to the two clock synthesizers of the machine. + */ +#define BBC_CSC_SLOAD 0x01 /* Directly connected to S_LOAD pins */ +#define BBC_CSC_SDATA 0x02 /* Directly connected to S_DATA pins */ +#define BBC_CSC_SCLOCK 0x04 /* Directly connected to S_CLOCK pins */ +#define BBC_CSC_RESV 0x78 /* Reserved */ +#define BBC_CSC_RST 0x80 /* Generate system reset when S_LOAD==1 */ + +/* Energy Star Control register. This register is used to generate the + * clock frequency change trigger to the main system devices (Schizo and + * the processors). The transition occurs when bits in this register + * go from 0 to 1, only one bit must be set at once else no action + * occurs. Basically the sequence of events is: + * a) Choose new frequency: full, 1/2 or 1/32 + * b) Program this desired frequency into the cpus and Schizo. + * c) Set the same value in this register. + * d) 16 system clocks later, clear this register. + */ +#define BBC_ES_CTRL_1_1 0x01 /* Full frequency */ +#define BBC_ES_CTRL_1_2 0x02 /* 1/2 frequency */ +#define BBC_ES_CTRL_1_32 0x20 /* 1/32 frequency */ +#define BBC_ES_RESV 0xdc /* Reserved */ + +/* Energy Star Assert Change Time register. This determines the number + * of BBC clock cycles (which is half the system frequency) between + * the detection of FREEZE_ACK being asserted and the assertion of + * the CLK_CHANGE_L[2:0] signals. + */ +#define BBC_ES_ACT_VAL 0xff + +/* Energy Star Assert Bypass Time register. This determines the number + * of BBC clock cycles (which is half the system frequency) between + * the assertion of the CLK_CHANGE_L[2:0] signals and the assertion of + * the ESTAR_PLL_BYPASS signal. + */ +#define BBC_ES_ABT_VAL 0xffff + +/* Energy Star PLL Settle Time register. This determines the number of + * BBC clock cycles (which is half the system frequency) between the + * de-assertion of CLK_CHANGE_L[2:0] and the de-assertion of the FREEZE_L + * signal. + */ +#define BBC_ES_PST_VAL 0xffffffff + +/* Energy Star Frequency Switch Latency register. This is the number of + * BBC clocks between the de-assertion of CLK_CHANGE_L[2:0] and the first + * edge of the Safari clock at the new frequency. + */ +#define BBC_ES_FSL_VAL 0xffffffff + +/* Keyboard Beep control register. This is a simple enabler for the audio + * beep sound. + */ +#define BBC_KBD_BEEP_ENABLE 0x01 /* Enable beep */ +#define BBC_KBD_BEEP_RESV 0xfe /* Reserved */ + +/* Keyboard Beep Counter register. There is a free-running counter inside + * the BBC which runs at half the system clock. The bit set in this register + * determines when the audio sound is generated. So for example if bit + * 10 is set, the audio beep will oscillate at 1/(2**12). The keyboard beep + * generator automatically selects a different bit to use if the system clock + * is changed via Energy Star. + */ +#define BBC_KBD_BCNT_BITS 0x0007fc00 +#define BBC_KBC_BCNT_RESV 0xfff803ff + +#endif /* _SPARC64_BBC_H */ + diff --git a/include/asm-sparc/chafsr.h b/include/asm-sparc/chafsr.h new file mode 100644 index 000000000000..85c69b38220b --- /dev/null +++ b/include/asm-sparc/chafsr.h @@ -0,0 +1,241 @@ +#ifndef _SPARC64_CHAFSR_H +#define _SPARC64_CHAFSR_H + +/* Cheetah Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */ + +/* Comments indicate which processor variants on which the bit definition + * is valid. Codes are: + * ch --> cheetah + * ch+ --> cheetah plus + * jp --> jalapeno + */ + +/* All bits of this register except M_SYNDROME and E_SYNDROME are + * read, write 1 to clear. M_SYNDROME and E_SYNDROME are read-only. + */ + +/* Software bit set by linux trap handlers to indicate that the trap was + * signalled at %tl >= 1. + */ +#define CHAFSR_TL1 (1UL << 63UL) /* n/a */ + +/* Unmapped error from system bus for prefetch queue or + * store queue read operation + */ +#define CHPAFSR_DTO (1UL << 59UL) /* ch+ */ + +/* Bus error from system bus for prefetch queue or store queue + * read operation + */ +#define CHPAFSR_DBERR (1UL << 58UL) /* ch+ */ + +/* Hardware corrected E-cache Tag ECC error */ +#define CHPAFSR_THCE (1UL << 57UL) /* ch+ */ +/* System interface protocol error, hw timeout caused */ +#define JPAFSR_JETO (1UL << 57UL) /* jp */ + +/* SW handled correctable E-cache Tag ECC error */ +#define CHPAFSR_TSCE (1UL << 56UL) /* ch+ */ +/* Parity error on system snoop results */ +#define JPAFSR_SCE (1UL << 56UL) /* jp */ + +/* Uncorrectable E-cache Tag ECC error */ +#define CHPAFSR_TUE (1UL << 55UL) /* ch+ */ +/* System interface protocol error, illegal command detected */ +#define JPAFSR_JEIC (1UL << 55UL) /* jp */ + +/* Uncorrectable system bus data ECC error due to prefetch + * or store fill request + */ +#define CHPAFSR_DUE (1UL << 54UL) /* ch+ */ +/* System interface protocol error, illegal ADTYPE detected */ +#define JPAFSR_JEIT (1UL << 54UL) /* jp */ + +/* Multiple errors of the same type have occurred. This bit is set when + * an uncorrectable error or a SW correctable error occurs and the status + * bit to report that error is already set. When multiple errors of + * different types are indicated by setting multiple status bits. + * + * This bit is not set if multiple HW corrected errors with the same + * status bit occur, only uncorrectable and SW correctable ones have + * this behavior. + * + * This bit is not set when multiple ECC errors happen within a single + * 64-byte system bus transaction. Only the first ECC error in a 16-byte + * subunit will be logged. All errors in subsequent 16-byte subunits + * from the same 64-byte transaction are ignored. + */ +#define CHAFSR_ME (1UL << 53UL) /* ch,ch+,jp */ + +/* Privileged state error has occurred. This is a capture of PSTATE.PRIV + * at the time the error is detected. + */ +#define CHAFSR_PRIV (1UL << 52UL) /* ch,ch+,jp */ + +/* The following bits 51 (CHAFSR_PERR) to 33 (CHAFSR_CE) are sticky error + * bits and record the most recently detected errors. Bits accumulate + * errors that have been detected since the last write to clear the bit. + */ + +/* System interface protocol error. The processor asserts its' ERROR + * pin when this event occurs and it also logs a specific cause code + * into a JTAG scannable flop. + */ +#define CHAFSR_PERR (1UL << 51UL) /* ch,ch+,jp */ + +/* Internal processor error. The processor asserts its' ERROR + * pin when this event occurs and it also logs a specific cause code + * into a JTAG scannable flop. + */ +#define CHAFSR_IERR (1UL << 50UL) /* ch,ch+,jp */ + +/* System request parity error on incoming address */ +#define CHAFSR_ISAP (1UL << 49UL) /* ch,ch+,jp */ + +/* HW Corrected system bus MTAG ECC error */ +#define CHAFSR_EMC (1UL << 48UL) /* ch,ch+ */ +/* Parity error on L2 cache tag SRAM */ +#define JPAFSR_ETP (1UL << 48UL) /* jp */ + +/* Uncorrectable system bus MTAG ECC error */ +#define CHAFSR_EMU (1UL << 47UL) /* ch,ch+ */ +/* Out of range memory error has occurred */ +#define JPAFSR_OM (1UL << 47UL) /* jp */ + +/* HW Corrected system bus data ECC error for read of interrupt vector */ +#define CHAFSR_IVC (1UL << 46UL) /* ch,ch+ */ +/* Error due to unsupported store */ +#define JPAFSR_UMS (1UL << 46UL) /* jp */ + +/* Uncorrectable system bus data ECC error for read of interrupt vector */ +#define CHAFSR_IVU (1UL << 45UL) /* ch,ch+,jp */ + +/* Unmapped error from system bus */ +#define CHAFSR_TO (1UL << 44UL) /* ch,ch+,jp */ + +/* Bus error response from system bus */ +#define CHAFSR_BERR (1UL << 43UL) /* ch,ch+,jp */ + +/* SW Correctable E-cache ECC error for instruction fetch or data access + * other than block load. + */ +#define CHAFSR_UCC (1UL << 42UL) /* ch,ch+,jp */ + +/* Uncorrectable E-cache ECC error for instruction fetch or data access + * other than block load. + */ +#define CHAFSR_UCU (1UL << 41UL) /* ch,ch+,jp */ + +/* Copyout HW Corrected ECC error */ +#define CHAFSR_CPC (1UL << 40UL) /* ch,ch+,jp */ + +/* Copyout Uncorrectable ECC error */ +#define CHAFSR_CPU (1UL << 39UL) /* ch,ch+,jp */ + +/* HW Corrected ECC error from E-cache for writeback */ +#define CHAFSR_WDC (1UL << 38UL) /* ch,ch+,jp */ + +/* Uncorrectable ECC error from E-cache for writeback */ +#define CHAFSR_WDU (1UL << 37UL) /* ch,ch+,jp */ + +/* HW Corrected ECC error from E-cache for store merge or block load */ +#define CHAFSR_EDC (1UL << 36UL) /* ch,ch+,jp */ + +/* Uncorrectable ECC error from E-cache for store merge or block load */ +#define CHAFSR_EDU (1UL << 35UL) /* ch,ch+,jp */ + +/* Uncorrectable system bus data ECC error for read of memory or I/O */ +#define CHAFSR_UE (1UL << 34UL) /* ch,ch+,jp */ + +/* HW Corrected system bus data ECC error for read of memory or I/O */ +#define CHAFSR_CE (1UL << 33UL) /* ch,ch+,jp */ + +/* Uncorrectable ECC error from remote cache/memory */ +#define JPAFSR_RUE (1UL << 32UL) /* jp */ + +/* Correctable ECC error from remote cache/memory */ +#define JPAFSR_RCE (1UL << 31UL) /* jp */ + +/* JBUS parity error on returned read data */ +#define JPAFSR_BP (1UL << 30UL) /* jp */ + +/* JBUS parity error on data for writeback or block store */ +#define JPAFSR_WBP (1UL << 29UL) /* jp */ + +/* Foreign read to DRAM incurring correctable ECC error */ +#define JPAFSR_FRC (1UL << 28UL) /* jp */ + +/* Foreign read to DRAM incurring uncorrectable ECC error */ +#define JPAFSR_FRU (1UL << 27UL) /* jp */ + +#define CHAFSR_ERRORS (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \ + CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \ + CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \ + CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \ + CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE) +#define CHPAFSR_ERRORS (CHPAFSR_DTO | CHPAFSR_DBERR | CHPAFSR_THCE | \ + CHPAFSR_TSCE | CHPAFSR_TUE | CHPAFSR_DUE | \ + CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \ + CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \ + CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \ + CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \ + CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE) +#define JPAFSR_ERRORS (JPAFSR_JETO | JPAFSR_SCE | JPAFSR_JEIC | \ + JPAFSR_JEIT | CHAFSR_PERR | CHAFSR_IERR | \ + CHAFSR_ISAP | JPAFSR_ETP | JPAFSR_OM | \ + JPAFSR_UMS | CHAFSR_IVU | CHAFSR_TO | \ + CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | \ + CHAFSR_CPC | CHAFSR_CPU | CHAFSR_WDC | \ + CHAFSR_WDU | CHAFSR_EDC | CHAFSR_EDU | \ + CHAFSR_UE | CHAFSR_CE | JPAFSR_RUE | \ + JPAFSR_RCE | JPAFSR_BP | JPAFSR_WBP | \ + JPAFSR_FRC | JPAFSR_FRU) + +/* Active JBUS request signal when error occurred */ +#define JPAFSR_JBREQ (0x7UL << 24UL) /* jp */ +#define JPAFSR_JBREQ_SHIFT 24UL + +/* L2 cache way information */ +#define JPAFSR_ETW (0x3UL << 22UL) /* jp */ +#define JPAFSR_ETW_SHIFT 22UL + +/* System bus MTAG ECC syndrome. This field captures the status of the + * first occurrence of the highest-priority error according to the M_SYND + * overwrite policy. After the AFSR sticky bit, corresponding to the error + * for which the M_SYND is reported, is cleared, the contents of the M_SYND + * field will be unchanged by will be unfrozen for further error capture. + */ +#define CHAFSR_M_SYNDROME (0xfUL << 16UL) /* ch,ch+,jp */ +#define CHAFSR_M_SYNDROME_SHIFT 16UL + +/* Agenid Id of the foreign device causing the UE/CE errors */ +#define JPAFSR_AID (0x1fUL << 9UL) /* jp */ +#define JPAFSR_AID_SHIFT 9UL + +/* System bus or E-cache data ECC syndrome. This field captures the status + * of the first occurrence of the highest-priority error according to the + * E_SYND overwrite policy. After the AFSR sticky bit, corresponding to the + * error for which the E_SYND is reported, is cleare, the contents of the E_SYND + * field will be unchanged but will be unfrozen for further error capture. + */ +#define CHAFSR_E_SYNDROME (0x1ffUL << 0UL) /* ch,ch+,jp */ +#define CHAFSR_E_SYNDROME_SHIFT 0UL + +/* The AFSR must be explicitly cleared by software, it is not cleared automatically + * by a read. Writes to bits <51:33> with bits set will clear the corresponding + * bits in the AFSR. Bits associated with disrupting traps must be cleared before + * interrupts are re-enabled to prevent multiple traps for the same error. I.e. + * PSTATE.IE and AFSR bits control delivery of disrupting traps. + * + * Since there is only one AFAR, when multiple events have been logged by the + * bits in the AFSR, at most one of these events will have its status captured + * in the AFAR. The highest priority of those event bits will get AFAR logging. + * The AFAR will be unlocked and available to capture the address of another event + * as soon as the one bit in AFSR that corresponds to the event logged in AFAR is + * cleared. For example, if AFSR.CE is detected, then AFSR.UE (which overwrites + * the AFAR), and AFSR.UE is cleared by not AFSR.CE, then the AFAR will be unlocked + * and ready for another event, even though AFSR.CE is still set. The same rules + * also apply to the M_SYNDROME and E_SYNDROME fields of the AFSR. + */ + +#endif /* _SPARC64_CHAFSR_H */ diff --git a/include/asm-sparc/chmctrl.h b/include/asm-sparc/chmctrl.h new file mode 100644 index 000000000000..859b4a4b0d30 --- /dev/null +++ b/include/asm-sparc/chmctrl.h @@ -0,0 +1,183 @@ +#ifndef _SPARC64_CHMCTRL_H +#define _SPARC64_CHMCTRL_H + +/* Cheetah memory controller programmable registers. */ +#define CHMCTRL_TCTRL1 0x00 /* Memory Timing Control I */ +#define CHMCTRL_TCTRL2 0x08 /* Memory Timing Control II */ +#define CHMCTRL_TCTRL3 0x38 /* Memory Timing Control III */ +#define CHMCTRL_TCTRL4 0x40 /* Memory Timing Control IV */ +#define CHMCTRL_DECODE1 0x10 /* Memory Address Decode I */ +#define CHMCTRL_DECODE2 0x18 /* Memory Address Decode II */ +#define CHMCTRL_DECODE3 0x20 /* Memory Address Decode III */ +#define CHMCTRL_DECODE4 0x28 /* Memory Address Decode IV */ +#define CHMCTRL_MACTRL 0x30 /* Memory Address Control */ + +/* Memory Timing Control I */ +#define TCTRL1_SDRAMCTL_DLY 0xf000000000000000UL +#define TCTRL1_SDRAMCTL_DLY_SHIFT 60 +#define TCTRL1_SDRAMCLK_DLY 0x0e00000000000000UL +#define TCTRL1_SDRAMCLK_DLY_SHIFT 57 +#define TCTRL1_R 0x0100000000000000UL +#define TCTRL1_R_SHIFT 56 +#define TCTRL1_AUTORFR_CYCLE 0x00fe000000000000UL +#define TCTRL1_AUTORFR_CYCLE_SHIFT 49 +#define TCTRL1_RD_WAIT 0x0001f00000000000UL +#define TCTRL1_RD_WAIT_SHIFT 44 +#define TCTRL1_PC_CYCLE 0x00000fc000000000UL +#define TCTRL1_PC_CYCLE_SHIFT 38 +#define TCTRL1_WR_MORE_RAS_PW 0x0000003f00000000UL +#define TCTRL1_WR_MORE_RAS_PW_SHIFT 32 +#define TCTRL1_RD_MORE_RAW_PW 0x00000000fc000000UL +#define TCTRL1_RD_MORE_RAS_PW_SHIFT 26 +#define TCTRL1_ACT_WR_DLY 0x0000000003f00000UL +#define TCTRL1_ACT_WR_DLY_SHIFT 20 +#define TCTRL1_ACT_RD_DLY 0x00000000000fc000UL +#define TCTRL1_ACT_RD_DLY_SHIFT 14 +#define TCTRL1_BANK_PRESENT 0x0000000000003000UL +#define TCTRL1_BANK_PRESENT_SHIFT 12 +#define TCTRL1_RFR_INT 0x0000000000000ff8UL +#define TCTRL1_RFR_INT_SHIFT 3 +#define TCTRL1_SET_MODE_REG 0x0000000000000004UL +#define TCTRL1_SET_MODE_REG_SHIFT 2 +#define TCTRL1_RFR_ENABLE 0x0000000000000002UL +#define TCTRL1_RFR_ENABLE_SHIFT 1 +#define TCTRL1_PRECHG_ALL 0x0000000000000001UL +#define TCTRL1_PRECHG_ALL_SHIFT 0 + +/* Memory Timing Control II */ +#define TCTRL2_WR_MSEL_DLY 0xfc00000000000000UL +#define TCTRL2_WR_MSEL_DLY_SHIFT 58 +#define TCTRL2_RD_MSEL_DLY 0x03f0000000000000UL +#define TCTRL2_RD_MSEL_DLY_SHIFT 52 +#define TCTRL2_WRDATA_THLD 0x000c000000000000UL +#define TCTRL2_WRDATA_THLD_SHIFT 50 +#define TCTRL2_RDWR_RD_TI_DLY 0x0003f00000000000UL +#define TCTRL2_RDWR_RD_TI_DLY_SHIFT 44 +#define TCTRL2_AUTOPRECHG_ENBL 0x0000080000000000UL +#define TCTRL2_AUTOPRECHG_ENBL_SHIFT 43 +#define TCTRL2_RDWR_PI_MORE_DLY 0x000007c000000000UL +#define TCTRL2_RDWR_PI_MORE_DLY_SHIFT 38 +#define TCTRL2_RDWR_1_DLY 0x0000003f00000000UL +#define TCTRL2_RDWR_1_DLY_SHIFT 32 +#define TCTRL2_WRWR_PI_MORE_DLY 0x00000000f8000000UL +#define TCTRL2_WRWR_PI_MORE_DLY_SHIFT 27 +#define TCTRL2_WRWR_1_DLY 0x0000000007e00000UL +#define TCTRL2_WRWR_1_DLY_SHIFT 21 +#define TCTRL2_RDWR_RD_PI_MORE_DLY 0x00000000001f0000UL +#define TCTRL2_RDWR_RD_PI_MORE_DLY_SHIFT 16 +#define TCTRL2_R 0x0000000000008000UL +#define TCTRL2_R_SHIFT 15 +#define TCTRL2_SDRAM_MODE_REG_DATA 0x0000000000007fffUL +#define TCTRL2_SDRAM_MODE_REG_DATA_SHIFT 0 + +/* Memory Timing Control III */ +#define TCTRL3_SDRAM_CTL_DLY 0xf000000000000000UL +#define TCTRL3_SDRAM_CTL_DLY_SHIFT 60 +#define TCTRL3_SDRAM_CLK_DLY 0x0e00000000000000UL +#define TCTRL3_SDRAM_CLK_DLY_SHIFT 57 +#define TCTRL3_R 0x0100000000000000UL +#define TCTRL3_R_SHIFT 56 +#define TCTRL3_AUTO_RFR_CYCLE 0x00fe000000000000UL +#define TCTRL3_AUTO_RFR_CYCLE_SHIFT 49 +#define TCTRL3_RD_WAIT 0x0001f00000000000UL +#define TCTRL3_RD_WAIT_SHIFT 44 +#define TCTRL3_PC_CYCLE 0x00000fc000000000UL +#define TCTRL3_PC_CYCLE_SHIFT 38 +#define TCTRL3_WR_MORE_RAW_PW 0x0000003f00000000UL +#define TCTRL3_WR_MORE_RAW_PW_SHIFT 32 +#define TCTRL3_RD_MORE_RAW_PW 0x00000000fc000000UL +#define TCTRL3_RD_MORE_RAW_PW_SHIFT 26 +#define TCTRL3_ACT_WR_DLY 0x0000000003f00000UL +#define TCTRL3_ACT_WR_DLY_SHIFT 20 +#define TCTRL3_ACT_RD_DLY 0x00000000000fc000UL +#define TCTRL3_ACT_RD_DLY_SHIFT 14 +#define TCTRL3_BANK_PRESENT 0x0000000000003000UL +#define TCTRL3_BANK_PRESENT_SHIFT 12 +#define TCTRL3_RFR_INT 0x0000000000000ff8UL +#define TCTRL3_RFR_INT_SHIFT 3 +#define TCTRL3_SET_MODE_REG 0x0000000000000004UL +#define TCTRL3_SET_MODE_REG_SHIFT 2 +#define TCTRL3_RFR_ENABLE 0x0000000000000002UL +#define TCTRL3_RFR_ENABLE_SHIFT 1 +#define TCTRL3_PRECHG_ALL 0x0000000000000001UL +#define TCTRL3_PRECHG_ALL_SHIFT 0 + +/* Memory Timing Control IV */ +#define TCTRL4_WR_MSEL_DLY 0xfc00000000000000UL +#define TCTRL4_WR_MSEL_DLY_SHIFT 58 +#define TCTRL4_RD_MSEL_DLY 0x03f0000000000000UL +#define TCTRL4_RD_MSEL_DLY_SHIFT 52 +#define TCTRL4_WRDATA_THLD 0x000c000000000000UL +#define TCTRL4_WRDATA_THLD_SHIFT 50 +#define TCTRL4_RDWR_RD_RI_DLY 0x0003f00000000000UL +#define TCTRL4_RDWR_RD_RI_DLY_SHIFT 44 +#define TCTRL4_AUTO_PRECHG_ENBL 0x0000080000000000UL +#define TCTRL4_AUTO_PRECHG_ENBL_SHIFT 43 +#define TCTRL4_RD_WR_PI_MORE_DLY 0x000007c000000000UL +#define TCTRL4_RD_WR_PI_MORE_DLY_SHIFT 38 +#define TCTRL4_RD_WR_TI_DLY 0x0000003f00000000UL +#define TCTRL4_RD_WR_TI_DLY_SHIFT 32 +#define TCTRL4_WR_WR_PI_MORE_DLY 0x00000000f8000000UL +#define TCTRL4_WR_WR_PI_MORE_DLY_SHIFT 27 +#define TCTRL4_WR_WR_TI_DLY 0x0000000007e00000UL +#define TCTRL4_WR_WR_TI_DLY_SHIFT 21 +#define TCTRL4_RDWR_RD_PI_MORE_DLY 0x00000000001f000UL0 +#define TCTRL4_RDWR_RD_PI_MORE_DLY_SHIFT 16 +#define TCTRL4_R 0x0000000000008000UL +#define TCTRL4_R_SHIFT 15 +#define TCTRL4_SDRAM_MODE_REG_DATA 0x0000000000007fffUL +#define TCTRL4_SDRAM_MODE_REG_DATA_SHIFT 0 + +/* All 4 memory address decoding registers have the + * same layout. + */ +#define MEM_DECODE_VALID 0x8000000000000000UL /* Valid */ +#define MEM_DECODE_VALID_SHIFT 63 +#define MEM_DECODE_UK 0x001ffe0000000000UL /* Upper mask */ +#define MEM_DECODE_UK_SHIFT 41 +#define MEM_DECODE_UM 0x0000001ffff00000UL /* Upper match */ +#define MEM_DECODE_UM_SHIFT 20 +#define MEM_DECODE_LK 0x000000000003c000UL /* Lower mask */ +#define MEM_DECODE_LK_SHIFT 14 +#define MEM_DECODE_LM 0x0000000000000f00UL /* Lower match */ +#define MEM_DECODE_LM_SHIFT 8 + +#define PA_UPPER_BITS 0x000007fffc000000UL +#define PA_UPPER_BITS_SHIFT 26 +#define PA_LOWER_BITS 0x00000000000003c0UL +#define PA_LOWER_BITS_SHIFT 6 + +#define MACTRL_R0 0x8000000000000000UL +#define MACTRL_R0_SHIFT 63 +#define MACTRL_ADDR_LE_PW 0x7000000000000000UL +#define MACTRL_ADDR_LE_PW_SHIFT 60 +#define MACTRL_CMD_PW 0x0f00000000000000UL +#define MACTRL_CMD_PW_SHIFT 56 +#define MACTRL_HALF_MODE_WR_MSEL_DLY 0x00fc000000000000UL +#define MACTRL_HALF_MODE_WR_MSEL_DLY_SHIFT 50 +#define MACTRL_HALF_MODE_RD_MSEL_DLY 0x0003f00000000000UL +#define MACTRL_HALF_MODE_RD_MSEL_DLY_SHIFT 44 +#define MACTRL_HALF_MODE_SDRAM_CTL_DLY 0x00000f0000000000UL +#define MACTRL_HALF_MODE_SDRAM_CTL_DLY_SHIFT 40 +#define MACTRL_HALF_MODE_SDRAM_CLK_DLY 0x000000e000000000UL +#define MACTRL_HALF_MODE_SDRAM_CLK_DLY_SHIFT 37 +#define MACTRL_R1 0x0000001000000000UL +#define MACTRL_R1_SHIFT 36 +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B3 0x0000000f00000000UL +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B3_SHIFT 32 +#define MACTRL_ENC_INTLV_B3 0x00000000f8000000UL +#define MACTRL_ENC_INTLV_B3_SHIFT 27 +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B2 0x0000000007800000UL +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B2_SHIFT 23 +#define MACTRL_ENC_INTLV_B2 0x00000000007c0000UL +#define MACTRL_ENC_INTLV_B2_SHIFT 18 +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B1 0x000000000003c000UL +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B1_SHIFT 14 +#define MACTRL_ENC_INTLV_B1 0x0000000000003e00UL +#define MACTRL_ENC_INTLV_B1_SHIFT 9 +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B0 0x00000000000001e0UL +#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B0_SHIFT 5 +#define MACTRL_ENC_INTLV_B0 0x000000000000001fUL +#define MACTRL_ENC_INTLV_B0_SHIFT 0 + +#endif /* _SPARC64_CHMCTRL_H */ diff --git a/include/asm-sparc/cmt.h b/include/asm-sparc/cmt.h new file mode 100644 index 000000000000..870db5928577 --- /dev/null +++ b/include/asm-sparc/cmt.h @@ -0,0 +1,59 @@ +#ifndef _SPARC64_CMT_H +#define _SPARC64_CMT_H + +/* cmt.h: Chip Multi-Threading register definitions + * + * Copyright (C) 2004 David S. Miller (davem@redhat.com) + */ + +/* ASI_CORE_ID - private */ +#define LP_ID 0x0000000000000010UL +#define LP_ID_MAX 0x00000000003f0000UL +#define LP_ID_ID 0x000000000000003fUL + +/* ASI_INTR_ID - private */ +#define LP_INTR_ID 0x0000000000000000UL +#define LP_INTR_ID_ID 0x00000000000003ffUL + +/* ASI_CESR_ID - private */ +#define CESR_ID 0x0000000000000040UL +#define CESR_ID_ID 0x00000000000000ffUL + +/* ASI_CORE_AVAILABLE - shared */ +#define LP_AVAIL 0x0000000000000000UL +#define LP_AVAIL_1 0x0000000000000002UL +#define LP_AVAIL_0 0x0000000000000001UL + +/* ASI_CORE_ENABLE_STATUS - shared */ +#define LP_ENAB_STAT 0x0000000000000010UL +#define LP_ENAB_STAT_1 0x0000000000000002UL +#define LP_ENAB_STAT_0 0x0000000000000001UL + +/* ASI_CORE_ENABLE - shared */ +#define LP_ENAB 0x0000000000000020UL +#define LP_ENAB_1 0x0000000000000002UL +#define LP_ENAB_0 0x0000000000000001UL + +/* ASI_CORE_RUNNING - shared */ +#define LP_RUNNING_RW 0x0000000000000050UL +#define LP_RUNNING_W1S 0x0000000000000060UL +#define LP_RUNNING_W1C 0x0000000000000068UL +#define LP_RUNNING_1 0x0000000000000002UL +#define LP_RUNNING_0 0x0000000000000001UL + +/* ASI_CORE_RUNNING_STAT - shared */ +#define LP_RUN_STAT 0x0000000000000058UL +#define LP_RUN_STAT_1 0x0000000000000002UL +#define LP_RUN_STAT_0 0x0000000000000001UL + +/* ASI_XIR_STEERING - shared */ +#define LP_XIR_STEER 0x0000000000000030UL +#define LP_XIR_STEER_1 0x0000000000000002UL +#define LP_XIR_STEER_0 0x0000000000000001UL + +/* ASI_CMT_ERROR_STEERING - shared */ +#define CMT_ER_STEER 0x0000000000000040UL +#define CMT_ER_STEER_1 0x0000000000000002UL +#define CMT_ER_STEER_0 0x0000000000000001UL + +#endif /* _SPARC64_CMT_H */ diff --git a/include/asm-sparc/compat.h b/include/asm-sparc/compat.h new file mode 100644 index 000000000000..f260b58f5ce9 --- /dev/null +++ b/include/asm-sparc/compat.h @@ -0,0 +1,243 @@ +#ifndef _ASM_SPARC64_COMPAT_H +#define _ASM_SPARC64_COMPAT_H +/* + * Architecture specific compatibility types + */ +#include + +#define COMPAT_USER_HZ 100 + +typedef u32 compat_size_t; +typedef s32 compat_ssize_t; +typedef s32 compat_time_t; +typedef s32 compat_clock_t; +typedef s32 compat_pid_t; +typedef u16 __compat_uid_t; +typedef u16 __compat_gid_t; +typedef u32 __compat_uid32_t; +typedef u32 __compat_gid32_t; +typedef u16 compat_mode_t; +typedef u32 compat_ino_t; +typedef u16 compat_dev_t; +typedef s32 compat_off_t; +typedef s64 compat_loff_t; +typedef s16 compat_nlink_t; +typedef u16 compat_ipc_pid_t; +typedef s32 compat_daddr_t; +typedef u32 compat_caddr_t; +typedef __kernel_fsid_t compat_fsid_t; +typedef s32 compat_key_t; +typedef s32 compat_timer_t; + +typedef s32 compat_int_t; +typedef s32 compat_long_t; +typedef s64 compat_s64; +typedef u32 compat_uint_t; +typedef u32 compat_ulong_t; +typedef u64 compat_u64; + +struct compat_timespec { + compat_time_t tv_sec; + s32 tv_nsec; +}; + +struct compat_timeval { + compat_time_t tv_sec; + s32 tv_usec; +}; + +struct compat_stat { + compat_dev_t st_dev; + compat_ino_t st_ino; + compat_mode_t st_mode; + compat_nlink_t st_nlink; + __compat_uid_t st_uid; + __compat_gid_t st_gid; + compat_dev_t st_rdev; + compat_off_t st_size; + compat_time_t st_atime; + compat_ulong_t st_atime_nsec; + compat_time_t st_mtime; + compat_ulong_t st_mtime_nsec; + compat_time_t st_ctime; + compat_ulong_t st_ctime_nsec; + compat_off_t st_blksize; + compat_off_t st_blocks; + u32 __unused4[2]; +}; + +struct compat_stat64 { + unsigned long long st_dev; + + unsigned long long st_ino; + + unsigned int st_mode; + unsigned int st_nlink; + + unsigned int st_uid; + unsigned int st_gid; + + unsigned long long st_rdev; + + unsigned char __pad3[8]; + + long long st_size; + unsigned int st_blksize; + + unsigned char __pad4[8]; + unsigned int st_blocks; + + unsigned int st_atime; + unsigned int st_atime_nsec; + + unsigned int st_mtime; + unsigned int st_mtime_nsec; + + unsigned int st_ctime; + unsigned int st_ctime_nsec; + + unsigned int __unused4; + unsigned int __unused5; +}; + +struct compat_flock { + short l_type; + short l_whence; + compat_off_t l_start; + compat_off_t l_len; + compat_pid_t l_pid; + short __unused; +}; + +#define F_GETLK64 12 +#define F_SETLK64 13 +#define F_SETLKW64 14 + +struct compat_flock64 { + short l_type; + short l_whence; + compat_loff_t l_start; + compat_loff_t l_len; + compat_pid_t l_pid; + short __unused; +}; + +struct compat_statfs { + int f_type; + int f_bsize; + int f_blocks; + int f_bfree; + int f_bavail; + int f_files; + int f_ffree; + compat_fsid_t f_fsid; + int f_namelen; /* SunOS ignores this field. */ + int f_frsize; + int f_spare[5]; +}; + +#define COMPAT_RLIM_INFINITY 0x7fffffff + +typedef u32 compat_old_sigset_t; + +#define _COMPAT_NSIG 64 +#define _COMPAT_NSIG_BPW 32 + +typedef u32 compat_sigset_word; + +#define COMPAT_OFF_T_MAX 0x7fffffff +#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL + +/* + * A pointer passed in from user mode. This should not + * be used for syscall parameters, just declare them + * as pointers because the syscall entry code will have + * appropriately converted them already. + */ +typedef u32 compat_uptr_t; + +static inline void __user *compat_ptr(compat_uptr_t uptr) +{ + return (void __user *)(unsigned long)uptr; +} + +static inline compat_uptr_t ptr_to_compat(void __user *uptr) +{ + return (u32)(unsigned long)uptr; +} + +static inline void __user *compat_alloc_user_space(long len) +{ + struct pt_regs *regs = current_thread_info()->kregs; + unsigned long usp = regs->u_regs[UREG_I6]; + + if (!(test_thread_flag(TIF_32BIT))) + usp += STACK_BIAS; + else + usp &= 0xffffffffUL; + + usp -= len; + usp &= ~0x7UL; + + return (void __user *) usp; +} + +struct compat_ipc64_perm { + compat_key_t key; + __compat_uid32_t uid; + __compat_gid32_t gid; + __compat_uid32_t cuid; + __compat_gid32_t cgid; + unsigned short __pad1; + compat_mode_t mode; + unsigned short __pad2; + unsigned short seq; + unsigned long __unused1; /* yes they really are 64bit pads */ + unsigned long __unused2; +}; + +struct compat_semid64_ds { + struct compat_ipc64_perm sem_perm; + unsigned int __pad1; + compat_time_t sem_otime; + unsigned int __pad2; + compat_time_t sem_ctime; + u32 sem_nsems; + u32 __unused1; + u32 __unused2; +}; + +struct compat_msqid64_ds { + struct compat_ipc64_perm msg_perm; + unsigned int __pad1; + compat_time_t msg_stime; + unsigned int __pad2; + compat_time_t msg_rtime; + unsigned int __pad3; + compat_time_t msg_ctime; + unsigned int msg_cbytes; + unsigned int msg_qnum; + unsigned int msg_qbytes; + compat_pid_t msg_lspid; + compat_pid_t msg_lrpid; + unsigned int __unused1; + unsigned int __unused2; +}; + +struct compat_shmid64_ds { + struct compat_ipc64_perm shm_perm; + unsigned int __pad1; + compat_time_t shm_atime; + unsigned int __pad2; + compat_time_t shm_dtime; + unsigned int __pad3; + compat_time_t shm_ctime; + compat_size_t shm_segsz; + compat_pid_t shm_cpid; + compat_pid_t shm_lpid; + unsigned int shm_nattch; + unsigned int __unused1; + unsigned int __unused2; +}; + +#endif /* _ASM_SPARC64_COMPAT_H */ diff --git a/include/asm-sparc/compat_signal.h b/include/asm-sparc/compat_signal.h new file mode 100644 index 000000000000..b759eab9b51c --- /dev/null +++ b/include/asm-sparc/compat_signal.h @@ -0,0 +1,29 @@ +#ifndef _COMPAT_SIGNAL_H +#define _COMPAT_SIGNAL_H + +#include +#include + +#ifdef CONFIG_COMPAT +struct __new_sigaction32 { + unsigned sa_handler; + unsigned int sa_flags; + unsigned sa_restorer; /* not used by Linux/SPARC yet */ + compat_sigset_t sa_mask; +}; + +struct __old_sigaction32 { + unsigned sa_handler; + compat_old_sigset_t sa_mask; + unsigned int sa_flags; + unsigned sa_restorer; /* not used by Linux/SPARC yet */ +}; + +typedef struct sigaltstack32 { + u32 ss_sp; + int ss_flags; + compat_size_t ss_size; +} stack_t32; +#endif + +#endif /* !(_COMPAT_SIGNAL_H) */ diff --git a/include/asm-sparc/dcr.h b/include/asm-sparc/dcr.h new file mode 100644 index 000000000000..620c9ba642e9 --- /dev/null +++ b/include/asm-sparc/dcr.h @@ -0,0 +1,14 @@ +#ifndef _SPARC64_DCR_H +#define _SPARC64_DCR_H + +/* UltraSparc-III/III+ Dispatch Control Register, ASR 0x12 */ +#define DCR_DPE 0x0000000000001000 /* III+: D$ Parity Error Enable */ +#define DCR_OBS 0x0000000000000fc0 /* Observability Bus Controls */ +#define DCR_BPE 0x0000000000000020 /* Branch Predict Enable */ +#define DCR_RPE 0x0000000000000010 /* Return Address Prediction Enable */ +#define DCR_SI 0x0000000000000008 /* Single Instruction Disable */ +#define DCR_IPE 0x0000000000000004 /* III+: I$ Parity Error Enable */ +#define DCR_IFPOE 0x0000000000000002 /* IRQ FP Operation Enable */ +#define DCR_MS 0x0000000000000001 /* Multi-Scalar dispatch */ + +#endif /* _SPARC64_DCR_H */ diff --git a/include/asm-sparc/dcu.h b/include/asm-sparc/dcu.h new file mode 100644 index 000000000000..0f704e106a1b --- /dev/null +++ b/include/asm-sparc/dcu.h @@ -0,0 +1,27 @@ +#ifndef _SPARC64_DCU_H +#define _SPARC64_DCU_H + +#include + +/* UltraSparc-III Data Cache Unit Control Register */ +#define DCU_CP _AC(0x0002000000000000,UL) /* Phys Cache Enable w/o mmu */ +#define DCU_CV _AC(0x0001000000000000,UL) /* Virt Cache Enable w/o mmu */ +#define DCU_ME _AC(0x0000800000000000,UL) /* NC-store Merging Enable */ +#define DCU_RE _AC(0x0000400000000000,UL) /* RAW bypass Enable */ +#define DCU_PE _AC(0x0000200000000000,UL) /* PCache Enable */ +#define DCU_HPE _AC(0x0000100000000000,UL) /* HW prefetch Enable */ +#define DCU_SPE _AC(0x0000080000000000,UL) /* SW prefetch Enable */ +#define DCU_SL _AC(0x0000040000000000,UL) /* Secondary ld-steering Enab*/ +#define DCU_WE _AC(0x0000020000000000,UL) /* WCache enable */ +#define DCU_PM _AC(0x000001fe00000000,UL) /* PA Watchpoint Byte Mask */ +#define DCU_VM _AC(0x00000001fe000000,UL) /* VA Watchpoint Byte Mask */ +#define DCU_PR _AC(0x0000000001000000,UL) /* PA Watchpoint Read Enable */ +#define DCU_PW _AC(0x0000000000800000,UL) /* PA Watchpoint Write Enable*/ +#define DCU_VR _AC(0x0000000000400000,UL) /* VA Watchpoint Read Enable */ +#define DCU_VW _AC(0x0000000000200000,UL) /* VA Watchpoint Write Enable*/ +#define DCU_DM _AC(0x0000000000000008,UL) /* DMMU Enable */ +#define DCU_IM _AC(0x0000000000000004,UL) /* IMMU Enable */ +#define DCU_DC _AC(0x0000000000000002,UL) /* Data Cache Enable */ +#define DCU_IC _AC(0x0000000000000001,UL) /* Instruction Cache Enable */ + +#endif /* _SPARC64_DCU_H */ diff --git a/include/asm-sparc/estate.h b/include/asm-sparc/estate.h new file mode 100644 index 000000000000..520c08560d1b --- /dev/null +++ b/include/asm-sparc/estate.h @@ -0,0 +1,49 @@ +#ifndef _SPARC64_ESTATE_H +#define _SPARC64_ESTATE_H + +/* UltraSPARC-III E-cache Error Enable */ +#define ESTATE_ERROR_FMT 0x0000000000040000 /* Force MTAG ECC */ +#define ESTATE_ERROR_FMESS 0x000000000003c000 /* Forced MTAG ECC val */ +#define ESTATE_ERROR_FMD 0x0000000000002000 /* Force DATA ECC */ +#define ESTATE_ERROR_FDECC 0x0000000000001ff0 /* Forced DATA ECC val */ +#define ESTATE_ERROR_UCEEN 0x0000000000000008 /* See below */ +#define ESTATE_ERROR_NCEEN 0x0000000000000002 /* See below */ +#define ESTATE_ERROR_CEEN 0x0000000000000001 /* See below */ + +/* UCEEN enables the fast_ECC_error trap for: 1) software correctable E-cache + * errors 2) uncorrectable E-cache errors. Such events only occur on reads + * of the E-cache by the local processor for: 1) data loads 2) instruction + * fetches 3) atomic operations. Such events _cannot_ occur for: 1) merge + * 2) writeback 2) copyout. The AFSR bits associated with these traps are + * UCC and UCU. + */ + +/* NCEEN enables instruction_access_error, data_access_error, and ECC_error traps + * for uncorrectable ECC errors and system errors. + * + * Uncorrectable system bus data error or MTAG ECC error, system bus TimeOUT, + * or system bus BusERR: + * 1) As the result of an instruction fetch, will generate instruction_access_error + * 2) As the result of a load etc. will generate data_access_error. + * 3) As the result of store merge completion, writeback, or copyout will + * generate a disrupting ECC_error trap. + * 4) As the result of such errors on instruction vector fetch can generate any + * of the 3 trap types. + * + * The AFSR bits associated with these traps are EMU, EDU, WDU, CPU, IVU, UE, + * BERR, and TO. + */ + +/* CEEN enables the ECC_error trap for hardware corrected ECC errors. System bus + * reads resulting in a hardware corrected data or MTAG ECC error will generate an + * ECC_error disrupting trap with this bit enabled. + * + * This same trap will also be generated when a hardware corrected ECC error results + * during store merge, writeback, and copyout operations. + */ + +/* In general, if the trap enable bits above are disabled the AFSR bits will still + * log the events even though the trap will not be generated by the processor. + */ + +#endif /* _SPARC64_ESTATE_H */ diff --git a/include/asm-sparc/fhc.h b/include/asm-sparc/fhc.h new file mode 100644 index 000000000000..788cbc46a116 --- /dev/null +++ b/include/asm-sparc/fhc.h @@ -0,0 +1,121 @@ +/* + * fhc.h: Structures for central/fhc pseudo driver on Sunfire/Starfire/Wildfire. + * + * Copyright (C) 1997, 1999 David S. Miller (davem@redhat.com) + */ + +#ifndef _SPARC64_FHC_H +#define _SPARC64_FHC_H + +#include + +#include +#include +#include + +struct linux_fhc; + +/* Clock board register offsets. */ +#define CLOCK_CTRL 0x00UL /* Main control */ +#define CLOCK_STAT1 0x10UL /* Status one */ +#define CLOCK_STAT2 0x20UL /* Status two */ +#define CLOCK_PWRSTAT 0x30UL /* Power status */ +#define CLOCK_PWRPRES 0x40UL /* Power presence */ +#define CLOCK_TEMP 0x50UL /* Temperature */ +#define CLOCK_IRQDIAG 0x60UL /* IRQ diagnostics */ +#define CLOCK_PWRSTAT2 0x70UL /* Power status two */ + +#define CLOCK_CTRL_LLED 0x04 /* Left LED, 0 == on */ +#define CLOCK_CTRL_MLED 0x02 /* Mid LED, 1 == on */ +#define CLOCK_CTRL_RLED 0x01 /* RIght LED, 1 == on */ + +struct linux_central { + struct linux_fhc *child; + unsigned long cfreg; + unsigned long clkregs; + unsigned long clkver; + int slots; + struct device_node *prom_node; + + struct linux_prom_ranges central_ranges[PROMREG_MAX]; + int num_central_ranges; +}; + +/* Firehose controller register offsets */ +struct fhc_regs { + unsigned long pregs; /* FHC internal regs */ +#define FHC_PREGS_ID 0x00UL /* FHC ID */ +#define FHC_ID_VERS 0xf0000000 /* Version of this FHC */ +#define FHC_ID_PARTID 0x0ffff000 /* Part ID code (0x0f9f == FHC) */ +#define FHC_ID_MANUF 0x0000007e /* Manufacturer (0x3e == SUN's JEDEC)*/ +#define FHC_ID_RESV 0x00000001 /* Read as one */ +#define FHC_PREGS_RCS 0x10UL /* FHC Reset Control/Status Register */ +#define FHC_RCS_POR 0x80000000 /* Last reset was a power cycle */ +#define FHC_RCS_SPOR 0x40000000 /* Last reset was sw power on reset */ +#define FHC_RCS_SXIR 0x20000000 /* Last reset was sw XIR reset */ +#define FHC_RCS_BPOR 0x10000000 /* Last reset was due to POR button */ +#define FHC_RCS_BXIR 0x08000000 /* Last reset was due to XIR button */ +#define FHC_RCS_WEVENT 0x04000000 /* CPU reset was due to wakeup event */ +#define FHC_RCS_CFATAL 0x02000000 /* Centerplane Fatal Error signalled */ +#define FHC_RCS_FENAB 0x01000000 /* Fatal errors elicit system reset */ +#define FHC_PREGS_CTRL 0x20UL /* FHC Control Register */ +#define FHC_CONTROL_ICS 0x00100000 /* Ignore Centerplane Signals */ +#define FHC_CONTROL_FRST 0x00080000 /* Fatal Error Reset Enable */ +#define FHC_CONTROL_LFAT 0x00040000 /* AC/DC signalled a local error */ +#define FHC_CONTROL_SLINE 0x00010000 /* Firmware Synchronization Line */ +#define FHC_CONTROL_DCD 0x00008000 /* DC-->DC Converter Disable */ +#define FHC_CONTROL_POFF 0x00004000 /* AC/DC Controller PLL Disable */ +#define FHC_CONTROL_FOFF 0x00002000 /* FHC Controller PLL Disable */ +#define FHC_CONTROL_AOFF 0x00001000 /* CPU A SRAM/SBD Low Power Mode */ +#define FHC_CONTROL_BOFF 0x00000800 /* CPU B SRAM/SBD Low Power Mode */ +#define FHC_CONTROL_PSOFF 0x00000400 /* Turns off this FHC's power supply */ +#define FHC_CONTROL_IXIST 0x00000200 /* 0=FHC tells clock board it exists */ +#define FHC_CONTROL_XMSTR 0x00000100 /* 1=Causes this FHC to be XIR master*/ +#define FHC_CONTROL_LLED 0x00000040 /* 0=Left LED ON */ +#define FHC_CONTROL_MLED 0x00000020 /* 1=Middle LED ON */ +#define FHC_CONTROL_RLED 0x00000010 /* 1=Right LED */ +#define FHC_CONTROL_BPINS 0x00000003 /* Spare Bidirectional Pins */ +#define FHC_PREGS_BSR 0x30UL /* FHC Board Status Register */ +#define FHC_BSR_DA64 0x00040000 /* Port A: 0=128bit 1=64bit data path */ +#define FHC_BSR_DB64 0x00020000 /* Port B: 0=128bit 1=64bit data path */ +#define FHC_BSR_BID 0x0001e000 /* Board ID */ +#define FHC_BSR_SA 0x00001c00 /* Port A UPA Speed (from the pins) */ +#define FHC_BSR_SB 0x00000380 /* Port B UPA Speed (from the pins) */ +#define FHC_BSR_NDIAG 0x00000040 /* Not in Diag Mode */ +#define FHC_BSR_NTBED 0x00000020 /* Not in TestBED Mode */ +#define FHC_BSR_NIA 0x0000001c /* Jumper, bit 18 in PROM space */ +#define FHC_BSR_SI 0x00000001 /* Spare input pin value */ +#define FHC_PREGS_ECC 0x40UL /* FHC ECC Control Register (16 bits) */ +#define FHC_PREGS_JCTRL 0xf0UL /* FHC JTAG Control Register */ +#define FHC_JTAG_CTRL_MENAB 0x80000000 /* Indicates this is JTAG Master */ +#define FHC_JTAG_CTRL_MNONE 0x40000000 /* Indicates no JTAG Master present */ +#define FHC_PREGS_JCMD 0x100UL /* FHC JTAG Command Register */ + unsigned long ireg; /* FHC IGN reg */ +#define FHC_IREG_IGN 0x00UL /* This FHC's IGN */ + unsigned long ffregs; /* FHC fanfail regs */ +#define FHC_FFREGS_IMAP 0x00UL /* FHC Fanfail IMAP */ +#define FHC_FFREGS_ICLR 0x10UL /* FHC Fanfail ICLR */ + unsigned long sregs; /* FHC system regs */ +#define FHC_SREGS_IMAP 0x00UL /* FHC System IMAP */ +#define FHC_SREGS_ICLR 0x10UL /* FHC System ICLR */ + unsigned long uregs; /* FHC uart regs */ +#define FHC_UREGS_IMAP 0x00UL /* FHC Uart IMAP */ +#define FHC_UREGS_ICLR 0x10UL /* FHC Uart ICLR */ + unsigned long tregs; /* FHC TOD regs */ +#define FHC_TREGS_IMAP 0x00UL /* FHC TOD IMAP */ +#define FHC_TREGS_ICLR 0x10UL /* FHC TOD ICLR */ +}; + +struct linux_fhc { + struct linux_fhc *next; + struct linux_central *parent; /* NULL if not central FHC */ + struct fhc_regs fhc_regs; + int board; + int jtag_master; + struct device_node *prom_node; + + struct linux_prom_ranges fhc_ranges[PROMREG_MAX]; + int num_fhc_ranges; +}; + +#endif /* !(_SPARC64_FHC_H) */ diff --git a/include/asm-sparc/fpumacro.h b/include/asm-sparc/fpumacro.h new file mode 100644 index 000000000000..cc463fec806f --- /dev/null +++ b/include/asm-sparc/fpumacro.h @@ -0,0 +1,33 @@ +/* fpumacro.h: FPU related macros. + * + * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SPARC64_FPUMACRO_H +#define _SPARC64_FPUMACRO_H + +#include +#include + +struct fpustate { + u32 regs[64]; +}; + +#define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs) + +static inline unsigned long fprs_read(void) +{ + unsigned long retval; + + __asm__ __volatile__("rd %%fprs, %0" : "=r" (retval)); + + return retval; +} + +static inline void fprs_write(unsigned long val) +{ + __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val)); +} + +#endif /* !(_SPARC64_FPUMACRO_H) */ diff --git a/include/asm-sparc/hugetlb.h b/include/asm-sparc/hugetlb.h new file mode 100644 index 000000000000..412af58926a0 --- /dev/null +++ b/include/asm-sparc/hugetlb.h @@ -0,0 +1,84 @@ +#ifndef _ASM_SPARC64_HUGETLB_H +#define _ASM_SPARC64_HUGETLB_H + +#include + + +void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte); + +pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep); + +void hugetlb_prefault_arch_hook(struct mm_struct *mm); + +static inline int is_hugepage_only_range(struct mm_struct *mm, + unsigned long addr, + unsigned long len) { + return 0; +} + +/* + * If the arch doesn't supply something else, assume that hugepage + * size aligned regions are ok without further preparation. + */ +static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) +{ + if (len & ~HPAGE_MASK) + return -EINVAL; + if (addr & ~HPAGE_MASK) + return -EINVAL; + return 0; +} + +static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb, + unsigned long addr, unsigned long end, + unsigned long floor, + unsigned long ceiling) +{ + free_pgd_range(tlb, addr, end, floor, ceiling); +} + +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) +{ +} + +static inline int huge_pte_none(pte_t pte) +{ + return pte_none(pte); +} + +static inline pte_t huge_pte_wrprotect(pte_t pte) +{ + return pte_wrprotect(pte); +} + +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + ptep_set_wrprotect(mm, addr, ptep); +} + +static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, + pte_t pte, int dirty) +{ + return ptep_set_access_flags(vma, addr, ptep, pte, dirty); +} + +static inline pte_t huge_ptep_get(pte_t *ptep) +{ + return *ptep; +} + +static inline int arch_prepare_hugepage(struct page *page) +{ + return 0; +} + +static inline void arch_release_hugepage(struct page *page) +{ +} + +#endif /* _ASM_SPARC64_HUGETLB_H */ diff --git a/include/asm-sparc/hvtramp.h b/include/asm-sparc/hvtramp.h new file mode 100644 index 000000000000..b2b9b947b3a4 --- /dev/null +++ b/include/asm-sparc/hvtramp.h @@ -0,0 +1,37 @@ +#ifndef _SPARC64_HVTRAP_H +#define _SPARC64_HVTRAP_H + +#ifndef __ASSEMBLY__ + +#include + +struct hvtramp_mapping { + __u64 vaddr; + __u64 tte; +}; + +struct hvtramp_descr { + __u32 cpu; + __u32 num_mappings; + __u64 fault_info_va; + __u64 fault_info_pa; + __u64 thread_reg; + struct hvtramp_mapping maps[1]; +}; + +extern void hv_cpu_startup(unsigned long hvdescr_pa); + +#endif + +#define HVTRAMP_DESCR_CPU 0x00 +#define HVTRAMP_DESCR_NUM_MAPPINGS 0x04 +#define HVTRAMP_DESCR_FAULT_INFO_VA 0x08 +#define HVTRAMP_DESCR_FAULT_INFO_PA 0x10 +#define HVTRAMP_DESCR_THREAD_REG 0x18 +#define HVTRAMP_DESCR_MAPS 0x20 + +#define HVTRAMP_MAPPING_VADDR 0x00 +#define HVTRAMP_MAPPING_TTE 0x08 +#define HVTRAMP_MAPPING_SIZE 0x10 + +#endif /* _SPARC64_HVTRAP_H */ diff --git a/include/asm-sparc/hypervisor.h b/include/asm-sparc/hypervisor.h new file mode 100644 index 000000000000..0c0f41cf7462 --- /dev/null +++ b/include/asm-sparc/hypervisor.h @@ -0,0 +1,2945 @@ +#ifndef _SPARC64_HYPERVISOR_H +#define _SPARC64_HYPERVISOR_H + +/* Sun4v hypervisor interfaces and defines. + * + * Hypervisor calls are made via traps to software traps number 0x80 + * and above. Registers %o0 to %o5 serve as argument, status, and + * return value registers. + * + * There are two kinds of these traps. First there are the normal + * "fast traps" which use software trap 0x80 and encode the function + * to invoke by number in register %o5. Argument and return value + * handling is as follows: + * + * ----------------------------------------------- + * | %o5 | function number | undefined | + * | %o0 | argument 0 | return status | + * | %o1 | argument 1 | return value 1 | + * | %o2 | argument 2 | return value 2 | + * | %o3 | argument 3 | return value 3 | + * | %o4 | argument 4 | return value 4 | + * ----------------------------------------------- + * + * The second type are "hyper-fast traps" which encode the function + * number in the software trap number itself. So these use trap + * numbers > 0x80. The register usage for hyper-fast traps is as + * follows: + * + * ----------------------------------------------- + * | %o0 | argument 0 | return status | + * | %o1 | argument 1 | return value 1 | + * | %o2 | argument 2 | return value 2 | + * | %o3 | argument 3 | return value 3 | + * | %o4 | argument 4 | return value 4 | + * ----------------------------------------------- + * + * Registers providing explicit arguments to the hypervisor calls + * are volatile across the call. Upon return their values are + * undefined unless explicitly specified as containing a particular + * return value by the specific call. The return status is always + * returned in register %o0, zero indicates a successful execution of + * the hypervisor call and other values indicate an error status as + * defined below. So, for example, if a hyper-fast trap takes + * arguments 0, 1, and 2, then %o0, %o1, and %o2 are volatile across + * the call and %o3, %o4, and %o5 would be preserved. + * + * If the hypervisor trap is invalid, or the fast trap function number + * is invalid, HV_EBADTRAP will be returned in %o0. Also, all 64-bits + * of the argument and return values are significant. + */ + +/* Trap numbers. */ +#define HV_FAST_TRAP 0x80 +#define HV_MMU_MAP_ADDR_TRAP 0x83 +#define HV_MMU_UNMAP_ADDR_TRAP 0x84 +#define HV_TTRACE_ADDENTRY_TRAP 0x85 +#define HV_CORE_TRAP 0xff + +/* Error codes. */ +#define HV_EOK 0 /* Successful return */ +#define HV_ENOCPU 1 /* Invalid CPU id */ +#define HV_ENORADDR 2 /* Invalid real address */ +#define HV_ENOINTR 3 /* Invalid interrupt id */ +#define HV_EBADPGSZ 4 /* Invalid pagesize encoding */ +#define HV_EBADTSB 5 /* Invalid TSB description */ +#define HV_EINVAL 6 /* Invalid argument */ +#define HV_EBADTRAP 7 /* Invalid function number */ +#define HV_EBADALIGN 8 /* Invalid address alignment */ +#define HV_EWOULDBLOCK 9 /* Cannot complete w/o blocking */ +#define HV_ENOACCESS 10 /* No access to resource */ +#define HV_EIO 11 /* I/O error */ +#define HV_ECPUERROR 12 /* CPU in error state */ +#define HV_ENOTSUPPORTED 13 /* Function not supported */ +#define HV_ENOMAP 14 /* No mapping found */ +#define HV_ETOOMANY 15 /* Too many items specified */ +#define HV_ECHANNEL 16 /* Invalid LDC channel */ +#define HV_EBUSY 17 /* Resource busy */ + +/* mach_exit() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MACH_EXIT + * ARG0: exit code + * ERRORS: This service does not return. + * + * Stop all CPUs in the virtual domain and place them into the stopped + * state. The 64-bit exit code may be passed to a service entity as + * the domain's exit status. On systems without a service entity, the + * domain will undergo a reset, and the boot firmware will be + * reloaded. + * + * This function will never return to the guest that invokes it. + * + * Note: By convention an exit code of zero denotes a successful exit by + * the guest code. A non-zero exit code denotes a guest specific + * error indication. + * + */ +#define HV_FAST_MACH_EXIT 0x00 + +#ifndef __ASSEMBLY__ +extern void sun4v_mach_exit(unsigned long exit_code); +#endif + +/* Domain services. */ + +/* mach_desc() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MACH_DESC + * ARG0: buffer + * ARG1: length + * RET0: status + * RET1: length + * ERRORS: HV_EBADALIGN Buffer is badly aligned + * HV_ENORADDR Buffer is to an illegal real address. + * HV_EINVAL Buffer length is too small for complete + * machine description. + * + * Copy the most current machine description into the buffer indicated + * by the real address in ARG0. The buffer provided must be 16 byte + * aligned. Upon success or HV_EINVAL, this service returns the + * actual size of the machine description in the RET1 return value. + * + * Note: A method of determining the appropriate buffer size for the + * machine description is to first call this service with a buffer + * length of 0 bytes. + */ +#define HV_FAST_MACH_DESC 0x01 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_mach_desc(unsigned long buffer_pa, + unsigned long buf_len, + unsigned long *real_buf_len); +#endif + +/* mach_sir() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MACH_SIR + * ERRORS: This service does not return. + * + * Perform a software initiated reset of the virtual machine domain. + * All CPUs are captured as soon as possible, all hardware devices are + * returned to the entry default state, and the domain is restarted at + * the SIR (trap type 0x04) real trap table (RTBA) entry point on one + * of the CPUs. The single CPU restarted is selected as determined by + * platform specific policy. Memory is preserved across this + * operation. + */ +#define HV_FAST_MACH_SIR 0x02 + +#ifndef __ASSEMBLY__ +extern void sun4v_mach_sir(void); +#endif + +/* mach_set_watchdog() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MACH_SET_WATCHDOG + * ARG0: timeout in milliseconds + * RET0: status + * RET1: time remaining in milliseconds + * + * A guest uses this API to set a watchdog timer. Once the gues has set + * the timer, it must call the timer service again either to disable or + * postpone the expiration. If the timer expires before being reset or + * disabled, then the hypervisor take a platform specific action leading + * to guest termination within a bounded time period. The platform action + * may include recovery actions such as reporting the expiration to a + * Service Processor, and/or automatically restarting the gues. + * + * The 'timeout' parameter is specified in milliseconds, however the + * implementated granularity is given by the 'watchdog-resolution' + * property in the 'platform' node of the guest's machine description. + * The largest allowed timeout value is specified by the + * 'watchdog-max-timeout' property of the 'platform' node. + * + * If the 'timeout' argument is not zero, the watchdog timer is set to + * expire after a minimum of 'timeout' milliseconds. + * + * If the 'timeout' argument is zero, the watchdog timer is disabled. + * + * If the 'timeout' value exceeds the value of the 'max-watchdog-timeout' + * property, the hypervisor leaves the watchdog timer state unchanged, + * and returns a status of EINVAL. + * + * The 'time remaining' return value is valid regardless of whether the + * return status is EOK or EINVAL. A non-zero return value indicates the + * number of milliseconds that were remaining until the timer was to expire. + * If less than one millisecond remains, the return value is '1'. If the + * watchdog timer was disabled at the time of the call, the return value is + * zero. + * + * If the hypervisor cannot support the exact timeout value requested, but + * can support a larger timeout value, the hypervisor may round the actual + * timeout to a value larger than the requested timeout, consequently the + * 'time remaining' return value may be larger than the previously requested + * timeout value. + * + * Any guest OS debugger should be aware that the watchdog service may be in + * use. Consequently, it is recommended that the watchdog service is + * disabled upon debugger entry (e.g. reaching a breakpoint), and then + * re-enabled upon returning to normal execution. The API has been designed + * with this in mind, and the 'time remaining' result of the disable call may + * be used directly as the timeout argument of the re-enable call. + */ +#define HV_FAST_MACH_SET_WATCHDOG 0x05 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_mach_set_watchdog(unsigned long timeout, + unsigned long *orig_timeout); +#endif + +/* CPU services. + * + * CPUs represent devices that can execute software threads. A single + * chip that contains multiple cores or strands is represented as + * multiple CPUs with unique CPU identifiers. CPUs are exported to + * OBP via the machine description (and to the OS via the OBP device + * tree). CPUs are always in one of three states: stopped, running, + * or error. + * + * A CPU ID is a pre-assigned 16-bit value that uniquely identifies a + * CPU within a logical domain. Operations that are to be performed + * on multiple CPUs specify them via a CPU list. A CPU list is an + * array in real memory, of which each 16-bit word is a CPU ID. CPU + * lists are passed through the API as two arguments. The first is + * the number of entries (16-bit words) in the CPU list, and the + * second is the (real address) pointer to the CPU ID list. + */ + +/* cpu_start() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_START + * ARG0: CPU ID + * ARG1: PC + * ARG2: RTBA + * ARG3: target ARG0 + * RET0: status + * ERRORS: ENOCPU Invalid CPU ID + * EINVAL Target CPU ID is not in the stopped state + * ENORADDR Invalid PC or RTBA real address + * EBADALIGN Unaligned PC or unaligned RTBA + * EWOULDBLOCK Starting resources are not available + * + * Start CPU with given CPU ID with PC in %pc and with a real trap + * base address value of RTBA. The indicated CPU must be in the + * stopped state. The supplied RTBA must be aligned on a 256 byte + * boundary. On successful completion, the specified CPU will be in + * the running state and will be supplied with "target ARG0" in %o0 + * and RTBA in %tba. + */ +#define HV_FAST_CPU_START 0x10 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_cpu_start(unsigned long cpuid, + unsigned long pc, + unsigned long rtba, + unsigned long arg0); +#endif + +/* cpu_stop() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_STOP + * ARG0: CPU ID + * RET0: status + * ERRORS: ENOCPU Invalid CPU ID + * EINVAL Target CPU ID is the current cpu + * EINVAL Target CPU ID is not in the running state + * EWOULDBLOCK Stopping resources are not available + * ENOTSUPPORTED Not supported on this platform + * + * The specified CPU is stopped. The indicated CPU must be in the + * running state. On completion, it will be in the stopped state. It + * is not legal to stop the current CPU. + * + * Note: As this service cannot be used to stop the current cpu, this service + * may not be used to stop the last running CPU in a domain. To stop + * and exit a running domain, a guest must use the mach_exit() service. + */ +#define HV_FAST_CPU_STOP 0x11 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_cpu_stop(unsigned long cpuid); +#endif + +/* cpu_yield() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_YIELD + * RET0: status + * ERRORS: No possible error. + * + * Suspend execution on the current CPU. Execution will resume when + * an interrupt (device, %stick_compare, or cross-call) is targeted to + * the CPU. On some CPUs, this API may be used by the hypervisor to + * save power by disabling hardware strands. + */ +#define HV_FAST_CPU_YIELD 0x12 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_cpu_yield(void); +#endif + +/* cpu_qconf() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_QCONF + * ARG0: queue + * ARG1: base real address + * ARG2: number of entries + * RET0: status + * ERRORS: ENORADDR Invalid base real address + * EINVAL Invalid queue or number of entries is less + * than 2 or too large. + * EBADALIGN Base real address is not correctly aligned + * for size. + * + * Configure the given queue to be placed at the given base real + * address, with the given number of entries. The number of entries + * must be a power of 2. The base real address must be aligned + * exactly to match the queue size. Each queue entry is 64 bytes + * long, so for example a 32 entry queue must be aligned on a 2048 + * byte real address boundary. + * + * The specified queue is unconfigured if the number of entries is given + * as zero. + * + * For the current version of this API service, the argument queue is defined + * as follows: + * + * queue description + * ----- ------------------------- + * 0x3c cpu mondo queue + * 0x3d device mondo queue + * 0x3e resumable error queue + * 0x3f non-resumable error queue + * + * Note: The maximum number of entries for each queue for a specific cpu may + * be determined from the machine description. + */ +#define HV_FAST_CPU_QCONF 0x14 +#define HV_CPU_QUEUE_CPU_MONDO 0x3c +#define HV_CPU_QUEUE_DEVICE_MONDO 0x3d +#define HV_CPU_QUEUE_RES_ERROR 0x3e +#define HV_CPU_QUEUE_NONRES_ERROR 0x3f + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_cpu_qconf(unsigned long type, + unsigned long queue_paddr, + unsigned long num_queue_entries); +#endif + +/* cpu_qinfo() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_QINFO + * ARG0: queue + * RET0: status + * RET1: base real address + * RET1: number of entries + * ERRORS: EINVAL Invalid queue + * + * Return the configuration info for the given queue. The base real + * address and number of entries of the defined queue are returned. + * The queue argument values are the same as for cpu_qconf() above. + * + * If the specified queue is a valid queue number, but no queue has + * been defined, the number of entries will be set to zero and the + * base real address returned is undefined. + */ +#define HV_FAST_CPU_QINFO 0x15 + +/* cpu_mondo_send() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_MONDO_SEND + * ARG0-1: CPU list + * ARG2: data real address + * RET0: status + * ERRORS: EBADALIGN Mondo data is not 64-byte aligned or CPU list + * is not 2-byte aligned. + * ENORADDR Invalid data mondo address, or invalid cpu list + * address. + * ENOCPU Invalid cpu in CPU list + * EWOULDBLOCK Some or all of the listed CPUs did not receive + * the mondo + * ECPUERROR One or more of the listed CPUs are in error + * state, use HV_FAST_CPU_STATE to see which ones + * EINVAL CPU list includes caller's CPU ID + * + * Send a mondo interrupt to the CPUs in the given CPU list with the + * 64-bytes at the given data real address. The data must be 64-byte + * aligned. The mondo data will be delivered to the cpu_mondo queues + * of the recipient CPUs. + * + * In all cases, error or not, the CPUs in the CPU list to which the + * mondo has been successfully delivered will be indicated by having + * their entry in CPU list updated with the value 0xffff. + */ +#define HV_FAST_CPU_MONDO_SEND 0x42 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_cpu_mondo_send(unsigned long cpu_count, unsigned long cpu_list_pa, unsigned long mondo_block_pa); +#endif + +/* cpu_myid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_MYID + * RET0: status + * RET1: CPU ID + * ERRORS: No errors defined. + * + * Return the hypervisor ID handle for the current CPU. Use by a + * virtual CPU to discover it's own identity. + */ +#define HV_FAST_CPU_MYID 0x16 + +/* cpu_state() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_STATE + * ARG0: CPU ID + * RET0: status + * RET1: state + * ERRORS: ENOCPU Invalid CPU ID + * + * Retrieve the current state of the CPU with the given CPU ID. + */ +#define HV_FAST_CPU_STATE 0x17 +#define HV_CPU_STATE_STOPPED 0x01 +#define HV_CPU_STATE_RUNNING 0x02 +#define HV_CPU_STATE_ERROR 0x03 + +#ifndef __ASSEMBLY__ +extern long sun4v_cpu_state(unsigned long cpuid); +#endif + +/* cpu_set_rtba() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_SET_RTBA + * ARG0: RTBA + * RET0: status + * RET1: previous RTBA + * ERRORS: ENORADDR Invalid RTBA real address + * EBADALIGN RTBA is incorrectly aligned for a trap table + * + * Set the real trap base address of the local cpu to the given RTBA. + * The supplied RTBA must be aligned on a 256 byte boundary. Upon + * success the previous value of the RTBA is returned in RET1. + * + * Note: This service does not affect %tba + */ +#define HV_FAST_CPU_SET_RTBA 0x18 + +/* cpu_set_rtba() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CPU_GET_RTBA + * RET0: status + * RET1: previous RTBA + * ERRORS: No possible error. + * + * Returns the current value of RTBA in RET1. + */ +#define HV_FAST_CPU_GET_RTBA 0x19 + +/* MMU services. + * + * Layout of a TSB description for mmu_tsb_ctx{,non}0() calls. + */ +#ifndef __ASSEMBLY__ +struct hv_tsb_descr { + unsigned short pgsz_idx; + unsigned short assoc; + unsigned int num_ttes; /* in TTEs */ + unsigned int ctx_idx; + unsigned int pgsz_mask; + unsigned long tsb_base; + unsigned long resv; +}; +#endif +#define HV_TSB_DESCR_PGSZ_IDX_OFFSET 0x00 +#define HV_TSB_DESCR_ASSOC_OFFSET 0x02 +#define HV_TSB_DESCR_NUM_TTES_OFFSET 0x04 +#define HV_TSB_DESCR_CTX_IDX_OFFSET 0x08 +#define HV_TSB_DESCR_PGSZ_MASK_OFFSET 0x0c +#define HV_TSB_DESCR_TSB_BASE_OFFSET 0x10 +#define HV_TSB_DESCR_RESV_OFFSET 0x18 + +/* Page size bitmask. */ +#define HV_PGSZ_MASK_8K (1 << 0) +#define HV_PGSZ_MASK_64K (1 << 1) +#define HV_PGSZ_MASK_512K (1 << 2) +#define HV_PGSZ_MASK_4MB (1 << 3) +#define HV_PGSZ_MASK_32MB (1 << 4) +#define HV_PGSZ_MASK_256MB (1 << 5) +#define HV_PGSZ_MASK_2GB (1 << 6) +#define HV_PGSZ_MASK_16GB (1 << 7) + +/* Page size index. The value given in the TSB descriptor must correspond + * to the smallest page size specified in the pgsz_mask page size bitmask. + */ +#define HV_PGSZ_IDX_8K 0 +#define HV_PGSZ_IDX_64K 1 +#define HV_PGSZ_IDX_512K 2 +#define HV_PGSZ_IDX_4MB 3 +#define HV_PGSZ_IDX_32MB 4 +#define HV_PGSZ_IDX_256MB 5 +#define HV_PGSZ_IDX_2GB 6 +#define HV_PGSZ_IDX_16GB 7 + +/* MMU fault status area. + * + * MMU related faults have their status and fault address information + * placed into a memory region made available by privileged code. Each + * virtual processor must make a mmu_fault_area_conf() call to tell the + * hypervisor where that processor's fault status should be stored. + * + * The fault status block is a multiple of 64-bytes and must be aligned + * on a 64-byte boundary. + */ +#ifndef __ASSEMBLY__ +struct hv_fault_status { + unsigned long i_fault_type; + unsigned long i_fault_addr; + unsigned long i_fault_ctx; + unsigned long i_reserved[5]; + unsigned long d_fault_type; + unsigned long d_fault_addr; + unsigned long d_fault_ctx; + unsigned long d_reserved[5]; +}; +#endif +#define HV_FAULT_I_TYPE_OFFSET 0x00 +#define HV_FAULT_I_ADDR_OFFSET 0x08 +#define HV_FAULT_I_CTX_OFFSET 0x10 +#define HV_FAULT_D_TYPE_OFFSET 0x40 +#define HV_FAULT_D_ADDR_OFFSET 0x48 +#define HV_FAULT_D_CTX_OFFSET 0x50 + +#define HV_FAULT_TYPE_FAST_MISS 1 +#define HV_FAULT_TYPE_FAST_PROT 2 +#define HV_FAULT_TYPE_MMU_MISS 3 +#define HV_FAULT_TYPE_INV_RA 4 +#define HV_FAULT_TYPE_PRIV_VIOL 5 +#define HV_FAULT_TYPE_PROT_VIOL 6 +#define HV_FAULT_TYPE_NFO 7 +#define HV_FAULT_TYPE_NFO_SEFF 8 +#define HV_FAULT_TYPE_INV_VA 9 +#define HV_FAULT_TYPE_INV_ASI 10 +#define HV_FAULT_TYPE_NC_ATOMIC 11 +#define HV_FAULT_TYPE_PRIV_ACT 12 +#define HV_FAULT_TYPE_RESV1 13 +#define HV_FAULT_TYPE_UNALIGNED 14 +#define HV_FAULT_TYPE_INV_PGSZ 15 +/* Values 16 --> -2 are reserved. */ +#define HV_FAULT_TYPE_MULTIPLE -1 + +/* Flags argument for mmu_{map,unmap}_addr(), mmu_demap_{page,context,all}(), + * and mmu_{map,unmap}_perm_addr(). + */ +#define HV_MMU_DMMU 0x01 +#define HV_MMU_IMMU 0x02 +#define HV_MMU_ALL (HV_MMU_DMMU | HV_MMU_IMMU) + +/* mmu_map_addr() + * TRAP: HV_MMU_MAP_ADDR_TRAP + * ARG0: virtual address + * ARG1: mmu context + * ARG2: TTE + * ARG3: flags (HV_MMU_{IMMU,DMMU}) + * ERRORS: EINVAL Invalid virtual address, mmu context, or flags + * EBADPGSZ Invalid page size value + * ENORADDR Invalid real address in TTE + * + * Create a non-permanent mapping using the given TTE, virtual + * address, and mmu context. The flags argument determines which + * (data, or instruction, or both) TLB the mapping gets loaded into. + * + * The behavior is undefined if the valid bit is clear in the TTE. + * + * Note: This API call is for privileged code to specify temporary translation + * mappings without the need to create and manage a TSB. + */ + +/* mmu_unmap_addr() + * TRAP: HV_MMU_UNMAP_ADDR_TRAP + * ARG0: virtual address + * ARG1: mmu context + * ARG2: flags (HV_MMU_{IMMU,DMMU}) + * ERRORS: EINVAL Invalid virtual address, mmu context, or flags + * + * Demaps the given virtual address in the given mmu context on this + * CPU. This function is intended to be used to demap pages mapped + * with mmu_map_addr. This service is equivalent to invoking + * mmu_demap_page() with only the current CPU in the CPU list. The + * flags argument determines which (data, or instruction, or both) TLB + * the mapping gets unmapped from. + * + * Attempting to perform an unmap operation for a previously defined + * permanent mapping will have undefined results. + */ + +/* mmu_tsb_ctx0() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_TSB_CTX0 + * ARG0: number of TSB descriptions + * ARG1: TSB descriptions pointer + * RET0: status + * ERRORS: ENORADDR Invalid TSB descriptions pointer or + * TSB base within a descriptor + * EBADALIGN TSB descriptions pointer is not aligned + * to an 8-byte boundary, or TSB base + * within a descriptor is not aligned for + * the given TSB size + * EBADPGSZ Invalid page size in a TSB descriptor + * EBADTSB Invalid associativity or size in a TSB + * descriptor + * EINVAL Invalid number of TSB descriptions, or + * invalid context index in a TSB + * descriptor, or index page size not + * equal to smallest page size in page + * size bitmask field. + * + * Configures the TSBs for the current CPU for virtual addresses with + * context zero. The TSB descriptions pointer is a pointer to an + * array of the given number of TSB descriptions. + * + * Note: The maximum number of TSBs available to a virtual CPU is given by the + * mmu-max-#tsbs property of the cpu's corresponding "cpu" node in the + * machine description. + */ +#define HV_FAST_MMU_TSB_CTX0 0x20 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions, + unsigned long tsb_desc_ra); +#endif + +/* mmu_tsb_ctxnon0() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_TSB_CTXNON0 + * ARG0: number of TSB descriptions + * ARG1: TSB descriptions pointer + * RET0: status + * ERRORS: Same as for mmu_tsb_ctx0() above. + * + * Configures the TSBs for the current CPU for virtual addresses with + * non-zero contexts. The TSB descriptions pointer is a pointer to an + * array of the given number of TSB descriptions. + * + * Note: A maximum of 16 TSBs may be specified in the TSB description list. + */ +#define HV_FAST_MMU_TSB_CTXNON0 0x21 + +/* mmu_demap_page() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_DEMAP_PAGE + * ARG0: reserved, must be zero + * ARG1: reserved, must be zero + * ARG2: virtual address + * ARG3: mmu context + * ARG4: flags (HV_MMU_{IMMU,DMMU}) + * RET0: status + * ERRORS: EINVAL Invalid virutal address, context, or + * flags value + * ENOTSUPPORTED ARG0 or ARG1 is non-zero + * + * Demaps any page mapping of the given virtual address in the given + * mmu context for the current virtual CPU. Any virtually tagged + * caches are guaranteed to be kept consistent. The flags argument + * determines which TLB (instruction, or data, or both) participate in + * the operation. + * + * ARG0 and ARG1 are both reserved and must be set to zero. + */ +#define HV_FAST_MMU_DEMAP_PAGE 0x22 + +/* mmu_demap_ctx() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_DEMAP_CTX + * ARG0: reserved, must be zero + * ARG1: reserved, must be zero + * ARG2: mmu context + * ARG3: flags (HV_MMU_{IMMU,DMMU}) + * RET0: status + * ERRORS: EINVAL Invalid context or flags value + * ENOTSUPPORTED ARG0 or ARG1 is non-zero + * + * Demaps all non-permanent virtual page mappings previously specified + * for the given context for the current virtual CPU. Any virtual + * tagged caches are guaranteed to be kept consistent. The flags + * argument determines which TLB (instruction, or data, or both) + * participate in the operation. + * + * ARG0 and ARG1 are both reserved and must be set to zero. + */ +#define HV_FAST_MMU_DEMAP_CTX 0x23 + +/* mmu_demap_all() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_DEMAP_ALL + * ARG0: reserved, must be zero + * ARG1: reserved, must be zero + * ARG2: flags (HV_MMU_{IMMU,DMMU}) + * RET0: status + * ERRORS: EINVAL Invalid flags value + * ENOTSUPPORTED ARG0 or ARG1 is non-zero + * + * Demaps all non-permanent virtual page mappings previously specified + * for the current virtual CPU. Any virtual tagged caches are + * guaranteed to be kept consistent. The flags argument determines + * which TLB (instruction, or data, or both) participate in the + * operation. + * + * ARG0 and ARG1 are both reserved and must be set to zero. + */ +#define HV_FAST_MMU_DEMAP_ALL 0x24 + +#ifndef __ASSEMBLY__ +extern void sun4v_mmu_demap_all(void); +#endif + +/* mmu_map_perm_addr() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_MAP_PERM_ADDR + * ARG0: virtual address + * ARG1: reserved, must be zero + * ARG2: TTE + * ARG3: flags (HV_MMU_{IMMU,DMMU}) + * RET0: status + * ERRORS: EINVAL Invalid virutal address or flags value + * EBADPGSZ Invalid page size value + * ENORADDR Invalid real address in TTE + * ETOOMANY Too many mappings (max of 8 reached) + * + * Create a permanent mapping using the given TTE and virtual address + * for context 0 on the calling virtual CPU. A maximum of 8 such + * permanent mappings may be specified by privileged code. Mappings + * may be removed with mmu_unmap_perm_addr(). + * + * The behavior is undefined if a TTE with the valid bit clear is given. + * + * Note: This call is used to specify address space mappings for which + * privileged code does not expect to receive misses. For example, + * this mechanism can be used to map kernel nucleus code and data. + */ +#define HV_FAST_MMU_MAP_PERM_ADDR 0x25 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr, + unsigned long set_to_zero, + unsigned long tte, + unsigned long flags); +#endif + +/* mmu_fault_area_conf() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_FAULT_AREA_CONF + * ARG0: real address + * RET0: status + * RET1: previous mmu fault area real address + * ERRORS: ENORADDR Invalid real address + * EBADALIGN Invalid alignment for fault area + * + * Configure the MMU fault status area for the calling CPU. A 64-byte + * aligned real address specifies where MMU fault status information + * is placed. The return value is the previously specified area, or 0 + * for the first invocation. Specifying a fault area at real address + * 0 is not allowed. + */ +#define HV_FAST_MMU_FAULT_AREA_CONF 0x26 + +/* mmu_enable() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_ENABLE + * ARG0: enable flag + * ARG1: return target address + * RET0: status + * ERRORS: ENORADDR Invalid real address when disabling + * translation. + * EBADALIGN The return target address is not + * aligned to an instruction. + * EINVAL The enable flag request the current + * operating mode (e.g. disable if already + * disabled) + * + * Enable or disable virtual address translation for the calling CPU + * within the virtual machine domain. If the enable flag is zero, + * translation is disabled, any non-zero value will enable + * translation. + * + * When this function returns, the newly selected translation mode + * will be active. If the mmu is being enabled, then the return + * target address is a virtual address else it is a real address. + * + * Upon successful completion, control will be returned to the given + * return target address (ie. the cpu will jump to that address). On + * failure, the previous mmu mode remains and the trap simply returns + * as normal with the appropriate error code in RET0. + */ +#define HV_FAST_MMU_ENABLE 0x27 + +/* mmu_unmap_perm_addr() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_UNMAP_PERM_ADDR + * ARG0: virtual address + * ARG1: reserved, must be zero + * ARG2: flags (HV_MMU_{IMMU,DMMU}) + * RET0: status + * ERRORS: EINVAL Invalid virutal address or flags value + * ENOMAP Specified mapping was not found + * + * Demaps any permanent page mapping (established via + * mmu_map_perm_addr()) at the given virtual address for context 0 on + * the current virtual CPU. Any virtual tagged caches are guaranteed + * to be kept consistent. + */ +#define HV_FAST_MMU_UNMAP_PERM_ADDR 0x28 + +/* mmu_tsb_ctx0_info() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_TSB_CTX0_INFO + * ARG0: max TSBs + * ARG1: buffer pointer + * RET0: status + * RET1: number of TSBs + * ERRORS: EINVAL Supplied buffer is too small + * EBADALIGN The buffer pointer is badly aligned + * ENORADDR Invalid real address for buffer pointer + * + * Return the TSB configuration as previous defined by mmu_tsb_ctx0() + * into the provided buffer. The size of the buffer is given in ARG1 + * in terms of the number of TSB description entries. + * + * Upon return, RET1 always contains the number of TSB descriptions + * previously configured. If zero TSBs were configured, EOK is + * returned with RET1 containing 0. + */ +#define HV_FAST_MMU_TSB_CTX0_INFO 0x29 + +/* mmu_tsb_ctxnon0_info() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_TSB_CTXNON0_INFO + * ARG0: max TSBs + * ARG1: buffer pointer + * RET0: status + * RET1: number of TSBs + * ERRORS: EINVAL Supplied buffer is too small + * EBADALIGN The buffer pointer is badly aligned + * ENORADDR Invalid real address for buffer pointer + * + * Return the TSB configuration as previous defined by + * mmu_tsb_ctxnon0() into the provided buffer. The size of the buffer + * is given in ARG1 in terms of the number of TSB description entries. + * + * Upon return, RET1 always contains the number of TSB descriptions + * previously configured. If zero TSBs were configured, EOK is + * returned with RET1 containing 0. + */ +#define HV_FAST_MMU_TSB_CTXNON0_INFO 0x2a + +/* mmu_fault_area_info() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMU_FAULT_AREA_INFO + * RET0: status + * RET1: fault area real address + * ERRORS: No errors defined. + * + * Return the currently defined MMU fault status area for the current + * CPU. The real address of the fault status area is returned in + * RET1, or 0 is returned in RET1 if no fault status area is defined. + * + * Note: mmu_fault_area_conf() may be called with the return value (RET1) + * from this service if there is a need to save and restore the fault + * area for a cpu. + */ +#define HV_FAST_MMU_FAULT_AREA_INFO 0x2b + +/* Cache and Memory services. */ + +/* mem_scrub() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MEM_SCRUB + * ARG0: real address + * ARG1: length + * RET0: status + * RET1: length scrubbed + * ERRORS: ENORADDR Invalid real address + * EBADALIGN Start address or length are not correctly + * aligned + * EINVAL Length is zero + * + * Zero the memory contents in the range real address to real address + * plus length minus 1. Also, valid ECC will be generated for that + * memory address range. Scrubbing is started at the given real + * address, but may not scrub the entire given length. The actual + * length scrubbed will be returned in RET1. + * + * The real address and length must be aligned on an 8K boundary, or + * contain the start address and length from a sun4v error report. + * + * Note: There are two uses for this function. The first use is to block clear + * and initialize memory and the second is to scrub an u ncorrectable + * error reported via a resumable or non-resumable trap. The second + * use requires the arguments to be equal to the real address and length + * provided in a sun4v memory error report. + */ +#define HV_FAST_MEM_SCRUB 0x31 + +/* mem_sync() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MEM_SYNC + * ARG0: real address + * ARG1: length + * RET0: status + * RET1: length synced + * ERRORS: ENORADDR Invalid real address + * EBADALIGN Start address or length are not correctly + * aligned + * EINVAL Length is zero + * + * Force the next access within the real address to real address plus + * length minus 1 to be fetches from main system memory. Less than + * the given length may be synced, the actual amount synced is + * returned in RET1. The real address and length must be aligned on + * an 8K boundary. + */ +#define HV_FAST_MEM_SYNC 0x32 + +/* Time of day services. + * + * The hypervisor maintains the time of day on a per-domain basis. + * Changing the time of day in one domain does not affect the time of + * day on any other domain. + * + * Time is described by a single unsigned 64-bit word which is the + * number of seconds since the UNIX Epoch (00:00:00 UTC, January 1, + * 1970). + */ + +/* tod_get() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_TOD_GET + * RET0: status + * RET1: TOD + * ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable + * ENOTSUPPORTED If TOD not supported on this platform + * + * Return the current time of day. May block if TOD access is + * temporarily not possible. + */ +#define HV_FAST_TOD_GET 0x50 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_tod_get(unsigned long *time); +#endif + +/* tod_set() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_TOD_SET + * ARG0: TOD + * RET0: status + * ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable + * ENOTSUPPORTED If TOD not supported on this platform + * + * The current time of day is set to the value specified in ARG0. May + * block if TOD access is temporarily not possible. + */ +#define HV_FAST_TOD_SET 0x51 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_tod_set(unsigned long time); +#endif + +/* Console services */ + +/* con_getchar() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CONS_GETCHAR + * RET0: status + * RET1: character + * ERRORS: EWOULDBLOCK No character available. + * + * Returns a character from the console device. If no character is + * available then an EWOULDBLOCK error is returned. If a character is + * available, then the returned status is EOK and the character value + * is in RET1. + * + * A virtual BREAK is represented by the 64-bit value -1. + * + * A virtual HUP signal is represented by the 64-bit value -2. + */ +#define HV_FAST_CONS_GETCHAR 0x60 + +/* con_putchar() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CONS_PUTCHAR + * ARG0: character + * RET0: status + * ERRORS: EINVAL Illegal character + * EWOULDBLOCK Output buffer currently full, would block + * + * Send a character to the console device. Only character values + * between 0 and 255 may be used. Values outside this range are + * invalid except for the 64-bit value -1 which is used to send a + * virtual BREAK. + */ +#define HV_FAST_CONS_PUTCHAR 0x61 + +/* con_read() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CONS_READ + * ARG0: buffer real address + * ARG1: buffer size in bytes + * RET0: status + * RET1: bytes read or BREAK or HUP + * ERRORS: EWOULDBLOCK No character available. + * + * Reads characters into a buffer from the console device. If no + * character is available then an EWOULDBLOCK error is returned. + * If a character is available, then the returned status is EOK + * and the number of bytes read into the given buffer is provided + * in RET1. + * + * A virtual BREAK is represented by the 64-bit RET1 value -1. + * + * A virtual HUP signal is represented by the 64-bit RET1 value -2. + * + * If BREAK or HUP are indicated, no bytes were read into buffer. + */ +#define HV_FAST_CONS_READ 0x62 + +/* con_write() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_CONS_WRITE + * ARG0: buffer real address + * ARG1: buffer size in bytes + * RET0: status + * RET1: bytes written + * ERRORS: EWOULDBLOCK Output buffer currently full, would block + * + * Send a characters in buffer to the console device. Breaks must be + * sent using con_putchar(). + */ +#define HV_FAST_CONS_WRITE 0x63 + +#ifndef __ASSEMBLY__ +extern long sun4v_con_getchar(long *status); +extern long sun4v_con_putchar(long c); +extern long sun4v_con_read(unsigned long buffer, + unsigned long size, + unsigned long *bytes_read); +extern unsigned long sun4v_con_write(unsigned long buffer, + unsigned long size, + unsigned long *bytes_written); +#endif + +/* mach_set_soft_state() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MACH_SET_SOFT_STATE + * ARG0: software state + * ARG1: software state description pointer + * RET0: status + * ERRORS: EINVAL software state not valid or software state + * description is not NULL terminated + * ENORADDR software state description pointer is not a + * valid real address + * EBADALIGNED software state description is not correctly + * aligned + * + * This allows the guest to report it's soft state to the hypervisor. There + * are two primary components to this state. The first part states whether + * the guest software is running or not. The second containts optional + * details specific to the software. + * + * The software state argument is defined below in HV_SOFT_STATE_*, and + * indicates whether the guest is operating normally or in a transitional + * state. + * + * The software state description argument is a real address of a data buffer + * of size 32-bytes aligned on a 32-byte boundary. It is treated as a NULL + * terminated 7-bit ASCII string of up to 31 characters not including the + * NULL termination. + */ +#define HV_FAST_MACH_SET_SOFT_STATE 0x70 +#define HV_SOFT_STATE_NORMAL 0x01 +#define HV_SOFT_STATE_TRANSITION 0x02 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_mach_set_soft_state(unsigned long soft_state, + unsigned long msg_string_ra); +#endif + +/* mach_get_soft_state() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MACH_GET_SOFT_STATE + * ARG0: software state description pointer + * RET0: status + * RET1: software state + * ERRORS: ENORADDR software state description pointer is not a + * valid real address + * EBADALIGNED software state description is not correctly + * aligned + * + * Retrieve the current value of the guest's software state. The rules + * for the software state pointer are the same as for mach_set_soft_state() + * above. + */ +#define HV_FAST_MACH_GET_SOFT_STATE 0x71 + +/* svc_send() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_SVC_SEND + * ARG0: service ID + * ARG1: buffer real address + * ARG2: buffer size + * RET0: STATUS + * RET1: sent_bytes + * + * Be careful, all output registers are clobbered by this operation, + * so for example it is not possible to save away a value in %o4 + * across the trap. + */ +#define HV_FAST_SVC_SEND 0x80 + +/* svc_recv() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_SVC_RECV + * ARG0: service ID + * ARG1: buffer real address + * ARG2: buffer size + * RET0: STATUS + * RET1: recv_bytes + * + * Be careful, all output registers are clobbered by this operation, + * so for example it is not possible to save away a value in %o4 + * across the trap. + */ +#define HV_FAST_SVC_RECV 0x81 + +/* svc_getstatus() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_SVC_GETSTATUS + * ARG0: service ID + * RET0: STATUS + * RET1: status bits + */ +#define HV_FAST_SVC_GETSTATUS 0x82 + +/* svc_setstatus() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_SVC_SETSTATUS + * ARG0: service ID + * ARG1: bits to set + * RET0: STATUS + */ +#define HV_FAST_SVC_SETSTATUS 0x83 + +/* svc_clrstatus() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_SVC_CLRSTATUS + * ARG0: service ID + * ARG1: bits to clear + * RET0: STATUS + */ +#define HV_FAST_SVC_CLRSTATUS 0x84 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_svc_send(unsigned long svc_id, + unsigned long buffer, + unsigned long buffer_size, + unsigned long *sent_bytes); +extern unsigned long sun4v_svc_recv(unsigned long svc_id, + unsigned long buffer, + unsigned long buffer_size, + unsigned long *recv_bytes); +extern unsigned long sun4v_svc_getstatus(unsigned long svc_id, + unsigned long *status_bits); +extern unsigned long sun4v_svc_setstatus(unsigned long svc_id, + unsigned long status_bits); +extern unsigned long sun4v_svc_clrstatus(unsigned long svc_id, + unsigned long status_bits); +#endif + +/* Trap trace services. + * + * The hypervisor provides a trap tracing capability for privileged + * code running on each virtual CPU. Privileged code provides a + * round-robin trap trace queue within which the hypervisor writes + * 64-byte entries detailing hyperprivileged traps taken n behalf of + * privileged code. This is provided as a debugging capability for + * privileged code. + * + * The trap trace control structure is 64-bytes long and placed at the + * start (offset 0) of the trap trace buffer, and is described as + * follows: + */ +#ifndef __ASSEMBLY__ +struct hv_trap_trace_control { + unsigned long head_offset; + unsigned long tail_offset; + unsigned long __reserved[0x30 / sizeof(unsigned long)]; +}; +#endif +#define HV_TRAP_TRACE_CTRL_HEAD_OFFSET 0x00 +#define HV_TRAP_TRACE_CTRL_TAIL_OFFSET 0x08 + +/* The head offset is the offset of the most recently completed entry + * in the trap-trace buffer. The tail offset is the offset of the + * next entry to be written. The control structure is owned and + * modified by the hypervisor. A guest may not modify the control + * structure contents. Attempts to do so will result in undefined + * behavior for the guest. + * + * Each trap trace buffer entry is layed out as follows: + */ +#ifndef __ASSEMBLY__ +struct hv_trap_trace_entry { + unsigned char type; /* Hypervisor or guest entry? */ + unsigned char hpstate; /* Hyper-privileged state */ + unsigned char tl; /* Trap level */ + unsigned char gl; /* Global register level */ + unsigned short tt; /* Trap type */ + unsigned short tag; /* Extended trap identifier */ + unsigned long tstate; /* Trap state */ + unsigned long tick; /* Tick */ + unsigned long tpc; /* Trap PC */ + unsigned long f1; /* Entry specific */ + unsigned long f2; /* Entry specific */ + unsigned long f3; /* Entry specific */ + unsigned long f4; /* Entry specific */ +}; +#endif +#define HV_TRAP_TRACE_ENTRY_TYPE 0x00 +#define HV_TRAP_TRACE_ENTRY_HPSTATE 0x01 +#define HV_TRAP_TRACE_ENTRY_TL 0x02 +#define HV_TRAP_TRACE_ENTRY_GL 0x03 +#define HV_TRAP_TRACE_ENTRY_TT 0x04 +#define HV_TRAP_TRACE_ENTRY_TAG 0x06 +#define HV_TRAP_TRACE_ENTRY_TSTATE 0x08 +#define HV_TRAP_TRACE_ENTRY_TICK 0x10 +#define HV_TRAP_TRACE_ENTRY_TPC 0x18 +#define HV_TRAP_TRACE_ENTRY_F1 0x20 +#define HV_TRAP_TRACE_ENTRY_F2 0x28 +#define HV_TRAP_TRACE_ENTRY_F3 0x30 +#define HV_TRAP_TRACE_ENTRY_F4 0x38 + +/* The type field is encoded as follows. */ +#define HV_TRAP_TYPE_UNDEF 0x00 /* Entry content undefined */ +#define HV_TRAP_TYPE_HV 0x01 /* Hypervisor trap entry */ +#define HV_TRAP_TYPE_GUEST 0xff /* Added via ttrace_addentry() */ + +/* ttrace_buf_conf() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_TTRACE_BUF_CONF + * ARG0: real address + * ARG1: number of entries + * RET0: status + * RET1: number of entries + * ERRORS: ENORADDR Invalid real address + * EINVAL Size is too small + * EBADALIGN Real address not aligned on 64-byte boundary + * + * Requests hypervisor trap tracing and declares a virtual CPU's trap + * trace buffer to the hypervisor. The real address supplies the real + * base address of the trap trace queue and must be 64-byte aligned. + * Specifying a value of 0 for the number of entries disables trap + * tracing for the calling virtual CPU. The buffer allocated must be + * sized for a power of two number of 64-byte trap trace entries plus + * an initial 64-byte control structure. + * + * This may be invoked any number of times so that a virtual CPU may + * relocate a trap trace buffer or create "snapshots" of information. + * + * If the real address is illegal or badly aligned, then trap tracing + * is disabled and an error is returned. + * + * Upon failure with EINVAL, this service call returns in RET1 the + * minimum number of buffer entries required. Upon other failures + * RET1 is undefined. + */ +#define HV_FAST_TTRACE_BUF_CONF 0x90 + +/* ttrace_buf_info() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_TTRACE_BUF_INFO + * RET0: status + * RET1: real address + * RET2: size + * ERRORS: None defined. + * + * Returns the size and location of the previously declared trap-trace + * buffer. In the event that no buffer was previously defined, or the + * buffer is disabled, this call will return a size of zero bytes. + */ +#define HV_FAST_TTRACE_BUF_INFO 0x91 + +/* ttrace_enable() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_TTRACE_ENABLE + * ARG0: enable + * RET0: status + * RET1: previous enable state + * ERRORS: EINVAL No trap trace buffer currently defined + * + * Enable or disable trap tracing, and return the previous enabled + * state in RET1. Future systems may define various flags for the + * enable argument (ARG0), for the moment a guest should pass + * "(uint64_t) -1" to enable, and "(uint64_t) 0" to disable all + * tracing - which will ensure future compatability. + */ +#define HV_FAST_TTRACE_ENABLE 0x92 + +/* ttrace_freeze() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_TTRACE_FREEZE + * ARG0: freeze + * RET0: status + * RET1: previous freeze state + * ERRORS: EINVAL No trap trace buffer currently defined + * + * Freeze or unfreeze trap tracing, returning the previous freeze + * state in RET1. A guest should pass a non-zero value to freeze and + * a zero value to unfreeze all tracing. The returned previous state + * is 0 for not frozen and 1 for frozen. + */ +#define HV_FAST_TTRACE_FREEZE 0x93 + +/* ttrace_addentry() + * TRAP: HV_TTRACE_ADDENTRY_TRAP + * ARG0: tag (16-bits) + * ARG1: data word 0 + * ARG2: data word 1 + * ARG3: data word 2 + * ARG4: data word 3 + * RET0: status + * ERRORS: EINVAL No trap trace buffer currently defined + * + * Add an entry to the trap trace buffer. Upon return only ARG0/RET0 + * is modified - none of the other registers holding arguments are + * volatile across this hypervisor service. + */ + +/* Core dump services. + * + * Since the hypervisor viraulizes and thus obscures a lot of the + * physical machine layout and state, traditional OS crash dumps can + * be difficult to diagnose especially when the problem is a + * configuration error of some sort. + * + * The dump services provide an opaque buffer into which the + * hypervisor can place it's internal state in order to assist in + * debugging such situations. The contents are opaque and extremely + * platform and hypervisor implementation specific. The guest, during + * a core dump, requests that the hypervisor update any information in + * the dump buffer in preparation to being dumped as part of the + * domain's memory image. + */ + +/* dump_buf_update() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_DUMP_BUF_UPDATE + * ARG0: real address + * ARG1: size + * RET0: status + * RET1: required size of dump buffer + * ERRORS: ENORADDR Invalid real address + * EBADALIGN Real address is not aligned on a 64-byte + * boundary + * EINVAL Size is non-zero but less than minimum size + * required + * ENOTSUPPORTED Operation not supported on current logical + * domain + * + * Declare a domain dump buffer to the hypervisor. The real address + * provided for the domain dump buffer must be 64-byte aligned. The + * size specifies the size of the dump buffer and may be larger than + * the minimum size specified in the machine description. The + * hypervisor will fill the dump buffer with opaque data. + * + * Note: A guest may elect to include dump buffer contents as part of a crash + * dump to assist with debugging. This function may be called any number + * of times so that a guest may relocate a dump buffer, or create + * "snapshots" of any dump-buffer information. Each call to + * dump_buf_update() atomically declares the new dump buffer to the + * hypervisor. + * + * A specified size of 0 unconfigures the dump buffer. If the real + * address is illegal or badly aligned, then any currently active dump + * buffer is disabled and an error is returned. + * + * In the event that the call fails with EINVAL, RET1 contains the + * minimum size requires by the hypervisor for a valid dump buffer. + */ +#define HV_FAST_DUMP_BUF_UPDATE 0x94 + +/* dump_buf_info() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_DUMP_BUF_INFO + * RET0: status + * RET1: real address of current dump buffer + * RET2: size of current dump buffer + * ERRORS: No errors defined. + * + * Return the currently configures dump buffer description. A + * returned size of 0 bytes indicates an undefined dump buffer. In + * this case the return address in RET1 is undefined. + */ +#define HV_FAST_DUMP_BUF_INFO 0x95 + +/* Device interrupt services. + * + * Device interrupts are allocated to system bus bridges by the hypervisor, + * and described to OBP in the machine description. OBP then describes + * these interrupts to the OS via properties in the device tree. + * + * Terminology: + * + * cpuid Unique opaque value which represents a target cpu. + * + * devhandle Device handle. It uniquely identifies a device, and + * consistes of the lower 28-bits of the hi-cell of the + * first entry of the device's "reg" property in the + * OBP device tree. + * + * devino Device interrupt number. Specifies the relative + * interrupt number within the device. The unique + * combination of devhandle and devino are used to + * identify a specific device interrupt. + * + * Note: The devino value is the same as the values in the + * "interrupts" property or "interrupt-map" property + * in the OBP device tree for that device. + * + * sysino System interrupt number. A 64-bit unsigned interger + * representing a unique interrupt within a virtual + * machine. + * + * intr_state A flag representing the interrupt state for a given + * sysino. The state values are defined below. + * + * intr_enabled A flag representing the 'enabled' state for a given + * sysino. The enable values are defined below. + */ + +#define HV_INTR_STATE_IDLE 0 /* Nothing pending */ +#define HV_INTR_STATE_RECEIVED 1 /* Interrupt received by hardware */ +#define HV_INTR_STATE_DELIVERED 2 /* Interrupt delivered to queue */ + +#define HV_INTR_DISABLED 0 /* sysino not enabled */ +#define HV_INTR_ENABLED 1 /* sysino enabled */ + +/* intr_devino_to_sysino() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_INTR_DEVINO2SYSINO + * ARG0: devhandle + * ARG1: devino + * RET0: status + * RET1: sysino + * ERRORS: EINVAL Invalid devhandle/devino + * + * Converts a device specific interrupt number of the given + * devhandle/devino into a system specific ino (sysino). + */ +#define HV_FAST_INTR_DEVINO2SYSINO 0xa0 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_devino_to_sysino(unsigned long devhandle, + unsigned long devino); +#endif + +/* intr_getenabled() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_INTR_GETENABLED + * ARG0: sysino + * RET0: status + * RET1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) + * ERRORS: EINVAL Invalid sysino + * + * Returns interrupt enabled state in RET1 for the interrupt defined + * by the given sysino. + */ +#define HV_FAST_INTR_GETENABLED 0xa1 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_intr_getenabled(unsigned long sysino); +#endif + +/* intr_setenabled() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_INTR_SETENABLED + * ARG0: sysino + * ARG1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) + * RET0: status + * ERRORS: EINVAL Invalid sysino or intr_enabled value + * + * Set the 'enabled' state of the interrupt sysino. + */ +#define HV_FAST_INTR_SETENABLED 0xa2 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_intr_setenabled(unsigned long sysino, unsigned long intr_enabled); +#endif + +/* intr_getstate() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_INTR_GETSTATE + * ARG0: sysino + * RET0: status + * RET1: intr_state (HV_INTR_STATE_*) + * ERRORS: EINVAL Invalid sysino + * + * Returns current state of the interrupt defined by the given sysino. + */ +#define HV_FAST_INTR_GETSTATE 0xa3 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_intr_getstate(unsigned long sysino); +#endif + +/* intr_setstate() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_INTR_SETSTATE + * ARG0: sysino + * ARG1: intr_state (HV_INTR_STATE_*) + * RET0: status + * ERRORS: EINVAL Invalid sysino or intr_state value + * + * Sets the current state of the interrupt described by the given sysino + * value. + * + * Note: Setting the state to HV_INTR_STATE_IDLE clears any pending + * interrupt for sysino. + */ +#define HV_FAST_INTR_SETSTATE 0xa4 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_intr_setstate(unsigned long sysino, unsigned long intr_state); +#endif + +/* intr_gettarget() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_INTR_GETTARGET + * ARG0: sysino + * RET0: status + * RET1: cpuid + * ERRORS: EINVAL Invalid sysino + * + * Returns CPU that is the current target of the interrupt defined by + * the given sysino. The CPU value returned is undefined if the target + * has not been set via intr_settarget(). + */ +#define HV_FAST_INTR_GETTARGET 0xa5 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_intr_gettarget(unsigned long sysino); +#endif + +/* intr_settarget() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_INTR_SETTARGET + * ARG0: sysino + * ARG1: cpuid + * RET0: status + * ERRORS: EINVAL Invalid sysino + * ENOCPU Invalid cpuid + * + * Set the target CPU for the interrupt defined by the given sysino. + */ +#define HV_FAST_INTR_SETTARGET 0xa6 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_intr_settarget(unsigned long sysino, unsigned long cpuid); +#endif + +/* vintr_get_cookie() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_GET_COOKIE + * ARG0: device handle + * ARG1: device ino + * RET0: status + * RET1: cookie + */ +#define HV_FAST_VINTR_GET_COOKIE 0xa7 + +/* vintr_set_cookie() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_SET_COOKIE + * ARG0: device handle + * ARG1: device ino + * ARG2: cookie + * RET0: status + */ +#define HV_FAST_VINTR_SET_COOKIE 0xa8 + +/* vintr_get_valid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_GET_VALID + * ARG0: device handle + * ARG1: device ino + * RET0: status + * RET1: valid state + */ +#define HV_FAST_VINTR_GET_VALID 0xa9 + +/* vintr_set_valid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_SET_VALID + * ARG0: device handle + * ARG1: device ino + * ARG2: valid state + * RET0: status + */ +#define HV_FAST_VINTR_SET_VALID 0xaa + +/* vintr_get_state() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_GET_STATE + * ARG0: device handle + * ARG1: device ino + * RET0: status + * RET1: state + */ +#define HV_FAST_VINTR_GET_STATE 0xab + +/* vintr_set_state() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_SET_STATE + * ARG0: device handle + * ARG1: device ino + * ARG2: state + * RET0: status + */ +#define HV_FAST_VINTR_SET_STATE 0xac + +/* vintr_get_target() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_GET_TARGET + * ARG0: device handle + * ARG1: device ino + * RET0: status + * RET1: cpuid + */ +#define HV_FAST_VINTR_GET_TARGET 0xad + +/* vintr_set_target() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_VINTR_SET_TARGET + * ARG0: device handle + * ARG1: device ino + * ARG2: cpuid + * RET0: status + */ +#define HV_FAST_VINTR_SET_TARGET 0xae + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_vintr_get_cookie(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long *cookie); +extern unsigned long sun4v_vintr_set_cookie(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long cookie); +extern unsigned long sun4v_vintr_get_valid(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long *valid); +extern unsigned long sun4v_vintr_set_valid(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long valid); +extern unsigned long sun4v_vintr_get_state(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long *state); +extern unsigned long sun4v_vintr_set_state(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long state); +extern unsigned long sun4v_vintr_get_target(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long *cpuid); +extern unsigned long sun4v_vintr_set_target(unsigned long dev_handle, + unsigned long dev_ino, + unsigned long cpuid); +#endif + +/* PCI IO services. + * + * See the terminology descriptions in the device interrupt services + * section above as those apply here too. Here are terminology + * definitions specific to these PCI IO services: + * + * tsbnum TSB number. Indentifies which io-tsb is used. + * For this version of the specification, tsbnum + * must be zero. + * + * tsbindex TSB index. Identifies which entry in the TSB + * is used. The first entry is zero. + * + * tsbid A 64-bit aligned data structure which contains + * a tsbnum and a tsbindex. Bits 63:32 contain the + * tsbnum and bits 31:00 contain the tsbindex. + * + * Use the HV_PCI_TSBID() macro to construct such + * values. + * + * io_attributes IO attributes for IOMMU mappings. One of more + * of the attritbute bits are stores in a 64-bit + * value. The values are defined below. + * + * r_addr 64-bit real address + * + * pci_device PCI device address. A PCI device address identifies + * a specific device on a specific PCI bus segment. + * A PCI device address ia a 32-bit unsigned integer + * with the following format: + * + * 00000000.bbbbbbbb.dddddfff.00000000 + * + * Use the HV_PCI_DEVICE_BUILD() macro to construct + * such values. + * + * pci_config_offset + * PCI configureation space offset. For conventional + * PCI a value between 0 and 255. For extended + * configuration space, a value between 0 and 4095. + * + * Note: For PCI configuration space accesses, the offset + * must be aligned to the access size. + * + * error_flag A return value which specifies if the action succeeded + * or failed. 0 means no error, non-0 means some error + * occurred while performing the service. + * + * io_sync_direction + * Direction definition for pci_dma_sync(), defined + * below in HV_PCI_SYNC_*. + * + * io_page_list A list of io_page_addresses, an io_page_address is + * a real address. + * + * io_page_list_p A pointer to an io_page_list. + * + * "size based byte swap" - Some functions do size based byte swapping + * which allows sw to access pointers and + * counters in native form when the processor + * operates in a different endianness than the + * IO bus. Size-based byte swapping converts a + * multi-byte field between big-endian and + * little-endian format. + */ + +#define HV_PCI_MAP_ATTR_READ 0x01 +#define HV_PCI_MAP_ATTR_WRITE 0x02 + +#define HV_PCI_DEVICE_BUILD(b,d,f) \ + ((((b) & 0xff) << 16) | \ + (((d) & 0x1f) << 11) | \ + (((f) & 0x07) << 8)) + +#define HV_PCI_TSBID(__tsb_num, __tsb_index) \ + ((((u64)(__tsb_num)) << 32UL) | ((u64)(__tsb_index))) + +#define HV_PCI_SYNC_FOR_DEVICE 0x01 +#define HV_PCI_SYNC_FOR_CPU 0x02 + +/* pci_iommu_map() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_IOMMU_MAP + * ARG0: devhandle + * ARG1: tsbid + * ARG2: #ttes + * ARG3: io_attributes + * ARG4: io_page_list_p + * RET0: status + * RET1: #ttes mapped + * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex/io_attributes + * EBADALIGN Improperly aligned real address + * ENORADDR Invalid real address + * + * Create IOMMU mappings in the sun4v device defined by the given + * devhandle. The mappings are created in the TSB defined by the + * tsbnum component of the given tsbid. The first mapping is created + * in the TSB i ndex defined by the tsbindex component of the given tsbid. + * The call creates up to #ttes mappings, the first one at tsbnum, tsbindex, + * the second at tsbnum, tsbindex + 1, etc. + * + * All mappings are created with the attributes defined by the io_attributes + * argument. The page mapping addresses are described in the io_page_list + * defined by the given io_page_list_p, which is a pointer to the io_page_list. + * The first entry in the io_page_list is the address for the first iotte, the + * 2nd for the 2nd iotte, and so on. + * + * Each io_page_address in the io_page_list must be appropriately aligned. + * #ttes must be greater than zero. For this version of the spec, the tsbnum + * component of the given tsbid must be zero. + * + * Returns the actual number of mappings creates, which may be less than + * or equal to the argument #ttes. If the function returns a value which + * is less than the #ttes, the caller may continus to call the function with + * an updated tsbid, #ttes, io_page_list_p arguments until all pages are + * mapped. + * + * Note: This function does not imply an iotte cache flush. The guest must + * demap an entry before re-mapping it. + */ +#define HV_FAST_PCI_IOMMU_MAP 0xb0 + +/* pci_iommu_demap() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_IOMMU_DEMAP + * ARG0: devhandle + * ARG1: tsbid + * ARG2: #ttes + * RET0: status + * RET1: #ttes demapped + * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex + * + * Demap and flush IOMMU mappings in the device defined by the given + * devhandle. Demaps up to #ttes entries in the TSB defined by the tsbnum + * component of the given tsbid, starting at the TSB index defined by the + * tsbindex component of the given tsbid. + * + * For this version of the spec, the tsbnum of the given tsbid must be zero. + * #ttes must be greater than zero. + * + * Returns the actual number of ttes demapped, which may be less than or equal + * to the argument #ttes. If #ttes demapped is less than #ttes, the caller + * may continue to call this function with updated tsbid and #ttes arguments + * until all pages are demapped. + * + * Note: Entries do not have to be mapped to be demapped. A demap of an + * unmapped page will flush the entry from the tte cache. + */ +#define HV_FAST_PCI_IOMMU_DEMAP 0xb1 + +/* pci_iommu_getmap() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_IOMMU_GETMAP + * ARG0: devhandle + * ARG1: tsbid + * RET0: status + * RET1: io_attributes + * RET2: real address + * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex + * ENOMAP Mapping is not valid, no translation exists + * + * Read and return the mapping in the device described by the given devhandle + * and tsbid. If successful, the io_attributes shall be returned in RET1 + * and the page address of the mapping shall be returned in RET2. + * + * For this version of the spec, the tsbnum component of the given tsbid + * must be zero. + */ +#define HV_FAST_PCI_IOMMU_GETMAP 0xb2 + +/* pci_iommu_getbypass() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_IOMMU_GETBYPASS + * ARG0: devhandle + * ARG1: real address + * ARG2: io_attributes + * RET0: status + * RET1: io_addr + * ERRORS: EINVAL Invalid devhandle/io_attributes + * ENORADDR Invalid real address + * ENOTSUPPORTED Function not supported in this implementation. + * + * Create a "special" mapping in the device described by the given devhandle, + * for the given real address and attributes. Return the IO address in RET1 + * if successful. + */ +#define HV_FAST_PCI_IOMMU_GETBYPASS 0xb3 + +/* pci_config_get() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_CONFIG_GET + * ARG0: devhandle + * ARG1: pci_device + * ARG2: pci_config_offset + * ARG3: size + * RET0: status + * RET1: error_flag + * RET2: data + * ERRORS: EINVAL Invalid devhandle/pci_device/offset/size + * EBADALIGN pci_config_offset not size aligned + * ENOACCESS Access to this offset is not permitted + * + * Read PCI configuration space for the adapter described by the given + * devhandle. Read size (1, 2, or 4) bytes of data from the given + * pci_device, at pci_config_offset from the beginning of the device's + * configuration space. If there was no error, RET1 is set to zero and + * RET2 is set to the data read. Insignificant bits in RET2 are not + * guarenteed to have any specific value and therefore must be ignored. + * + * The data returned in RET2 is size based byte swapped. + * + * If an error occurs during the read, set RET1 to a non-zero value. The + * given pci_config_offset must be 'size' aligned. + */ +#define HV_FAST_PCI_CONFIG_GET 0xb4 + +/* pci_config_put() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_CONFIG_PUT + * ARG0: devhandle + * ARG1: pci_device + * ARG2: pci_config_offset + * ARG3: size + * ARG4: data + * RET0: status + * RET1: error_flag + * ERRORS: EINVAL Invalid devhandle/pci_device/offset/size + * EBADALIGN pci_config_offset not size aligned + * ENOACCESS Access to this offset is not permitted + * + * Write PCI configuration space for the adapter described by the given + * devhandle. Write size (1, 2, or 4) bytes of data in a single operation, + * at pci_config_offset from the beginning of the device's configuration + * space. The data argument contains the data to be written to configuration + * space. Prior to writing, the data is size based byte swapped. + * + * If an error occurs during the write access, do not generate an error + * report, do set RET1 to a non-zero value. Otherwise RET1 is zero. + * The given pci_config_offset must be 'size' aligned. + * + * This function is permitted to read from offset zero in the configuration + * space described by the given pci_device if necessary to ensure that the + * write access to config space completes. + */ +#define HV_FAST_PCI_CONFIG_PUT 0xb5 + +/* pci_peek() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_PEEK + * ARG0: devhandle + * ARG1: real address + * ARG2: size + * RET0: status + * RET1: error_flag + * RET2: data + * ERRORS: EINVAL Invalid devhandle or size + * EBADALIGN Improperly aligned real address + * ENORADDR Bad real address + * ENOACCESS Guest access prohibited + * + * Attempt to read the IO address given by the given devhandle, real address, + * and size. Size must be 1, 2, 4, or 8. The read is performed as a single + * access operation using the given size. If an error occurs when reading + * from the given location, do not generate an error report, but return a + * non-zero value in RET1. If the read was successful, return zero in RET1 + * and return the actual data read in RET2. The data returned is size based + * byte swapped. + * + * Non-significant bits in RET2 are not guarenteed to have any specific value + * and therefore must be ignored. If RET1 is returned as non-zero, the data + * value is not guarenteed to have any specific value and should be ignored. + * + * The caller must have permission to read from the given devhandle, real + * address, which must be an IO address. The argument real address must be a + * size aligned address. + * + * The hypervisor implementation of this function must block access to any + * IO address that the guest does not have explicit permission to access. + */ +#define HV_FAST_PCI_PEEK 0xb6 + +/* pci_poke() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_POKE + * ARG0: devhandle + * ARG1: real address + * ARG2: size + * ARG3: data + * ARG4: pci_device + * RET0: status + * RET1: error_flag + * ERRORS: EINVAL Invalid devhandle, size, or pci_device + * EBADALIGN Improperly aligned real address + * ENORADDR Bad real address + * ENOACCESS Guest access prohibited + * ENOTSUPPORTED Function is not supported by implementation + * + * Attempt to write data to the IO address given by the given devhandle, + * real address, and size. Size must be 1, 2, 4, or 8. The write is + * performed as a single access operation using the given size. Prior to + * writing the data is size based swapped. + * + * If an error occurs when writing to the given location, do not generate an + * error report, but return a non-zero value in RET1. If the write was + * successful, return zero in RET1. + * + * pci_device describes the configuration address of the device being + * written to. The implementation may safely read from offset 0 with + * the configuration space of the device described by devhandle and + * pci_device in order to guarantee that the write portion of the operation + * completes + * + * Any error that occurs due to the read shall be reported using the normal + * error reporting mechanisms .. the read error is not suppressed. + * + * The caller must have permission to write to the given devhandle, real + * address, which must be an IO address. The argument real address must be a + * size aligned address. The caller must have permission to read from + * the given devhandle, pci_device cofiguration space offset 0. + * + * The hypervisor implementation of this function must block access to any + * IO address that the guest does not have explicit permission to access. + */ +#define HV_FAST_PCI_POKE 0xb7 + +/* pci_dma_sync() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_DMA_SYNC + * ARG0: devhandle + * ARG1: real address + * ARG2: size + * ARG3: io_sync_direction + * RET0: status + * RET1: #synced + * ERRORS: EINVAL Invalid devhandle or io_sync_direction + * ENORADDR Bad real address + * + * Synchronize a memory region described by the given real address and size, + * for the device defined by the given devhandle using the direction(s) + * defined by the given io_sync_direction. The argument size is the size of + * the memory region in bytes. + * + * Return the actual number of bytes synchronized in the return value #synced, + * which may be less than or equal to the argument size. If the return + * value #synced is less than size, the caller must continue to call this + * function with updated real address and size arguments until the entire + * memory region is synchronized. + */ +#define HV_FAST_PCI_DMA_SYNC 0xb8 + +/* PCI MSI services. */ + +#define HV_MSITYPE_MSI32 0x00 +#define HV_MSITYPE_MSI64 0x01 + +#define HV_MSIQSTATE_IDLE 0x00 +#define HV_MSIQSTATE_ERROR 0x01 + +#define HV_MSIQ_INVALID 0x00 +#define HV_MSIQ_VALID 0x01 + +#define HV_MSISTATE_IDLE 0x00 +#define HV_MSISTATE_DELIVERED 0x01 + +#define HV_MSIVALID_INVALID 0x00 +#define HV_MSIVALID_VALID 0x01 + +#define HV_PCIE_MSGTYPE_PME_MSG 0x18 +#define HV_PCIE_MSGTYPE_PME_ACK_MSG 0x1b +#define HV_PCIE_MSGTYPE_CORR_MSG 0x30 +#define HV_PCIE_MSGTYPE_NONFATAL_MSG 0x31 +#define HV_PCIE_MSGTYPE_FATAL_MSG 0x33 + +#define HV_MSG_INVALID 0x00 +#define HV_MSG_VALID 0x01 + +/* pci_msiq_conf() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_CONF + * ARG0: devhandle + * ARG1: msiqid + * ARG2: real address + * ARG3: number of entries + * RET0: status + * ERRORS: EINVAL Invalid devhandle, msiqid or nentries + * EBADALIGN Improperly aligned real address + * ENORADDR Bad real address + * + * Configure the MSI queue given by the devhandle and msiqid arguments, + * and to be placed at the given real address and be of the given + * number of entries. The real address must be aligned exactly to match + * the queue size. Each queue entry is 64-bytes long, so f.e. a 32 entry + * queue must be aligned on a 2048 byte real address boundary. The MSI-EQ + * Head and Tail are initialized so that the MSI-EQ is 'empty'. + * + * Implementation Note: Certain implementations have fixed sized queues. In + * that case, number of entries must contain the correct + * value. + */ +#define HV_FAST_PCI_MSIQ_CONF 0xc0 + +/* pci_msiq_info() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_INFO + * ARG0: devhandle + * ARG1: msiqid + * RET0: status + * RET1: real address + * RET2: number of entries + * ERRORS: EINVAL Invalid devhandle or msiqid + * + * Return the configuration information for the MSI queue described + * by the given devhandle and msiqid. The base address of the queue + * is returned in ARG1 and the number of entries is returned in ARG2. + * If the queue is unconfigured, the real address is undefined and the + * number of entries will be returned as zero. + */ +#define HV_FAST_PCI_MSIQ_INFO 0xc1 + +/* pci_msiq_getvalid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_GETVALID + * ARG0: devhandle + * ARG1: msiqid + * RET0: status + * RET1: msiqvalid (HV_MSIQ_VALID or HV_MSIQ_INVALID) + * ERRORS: EINVAL Invalid devhandle or msiqid + * + * Get the valid state of the MSI-EQ described by the given devhandle and + * msiqid. + */ +#define HV_FAST_PCI_MSIQ_GETVALID 0xc2 + +/* pci_msiq_setvalid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_SETVALID + * ARG0: devhandle + * ARG1: msiqid + * ARG2: msiqvalid (HV_MSIQ_VALID or HV_MSIQ_INVALID) + * RET0: status + * ERRORS: EINVAL Invalid devhandle or msiqid or msiqvalid + * value or MSI EQ is uninitialized + * + * Set the valid state of the MSI-EQ described by the given devhandle and + * msiqid to the given msiqvalid. + */ +#define HV_FAST_PCI_MSIQ_SETVALID 0xc3 + +/* pci_msiq_getstate() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_GETSTATE + * ARG0: devhandle + * ARG1: msiqid + * RET0: status + * RET1: msiqstate (HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR) + * ERRORS: EINVAL Invalid devhandle or msiqid + * + * Get the state of the MSI-EQ described by the given devhandle and + * msiqid. + */ +#define HV_FAST_PCI_MSIQ_GETSTATE 0xc4 + +/* pci_msiq_getvalid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_GETVALID + * ARG0: devhandle + * ARG1: msiqid + * ARG2: msiqstate (HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR) + * RET0: status + * ERRORS: EINVAL Invalid devhandle or msiqid or msiqstate + * value or MSI EQ is uninitialized + * + * Set the state of the MSI-EQ described by the given devhandle and + * msiqid to the given msiqvalid. + */ +#define HV_FAST_PCI_MSIQ_SETSTATE 0xc5 + +/* pci_msiq_gethead() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_GETHEAD + * ARG0: devhandle + * ARG1: msiqid + * RET0: status + * RET1: msiqhead + * ERRORS: EINVAL Invalid devhandle or msiqid + * + * Get the current MSI EQ queue head for the MSI-EQ described by the + * given devhandle and msiqid. + */ +#define HV_FAST_PCI_MSIQ_GETHEAD 0xc6 + +/* pci_msiq_sethead() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_SETHEAD + * ARG0: devhandle + * ARG1: msiqid + * ARG2: msiqhead + * RET0: status + * ERRORS: EINVAL Invalid devhandle or msiqid or msiqhead, + * or MSI EQ is uninitialized + * + * Set the current MSI EQ queue head for the MSI-EQ described by the + * given devhandle and msiqid. + */ +#define HV_FAST_PCI_MSIQ_SETHEAD 0xc7 + +/* pci_msiq_gettail() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSIQ_GETTAIL + * ARG0: devhandle + * ARG1: msiqid + * RET0: status + * RET1: msiqtail + * ERRORS: EINVAL Invalid devhandle or msiqid + * + * Get the current MSI EQ queue tail for the MSI-EQ described by the + * given devhandle and msiqid. + */ +#define HV_FAST_PCI_MSIQ_GETTAIL 0xc8 + +/* pci_msi_getvalid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSI_GETVALID + * ARG0: devhandle + * ARG1: msinum + * RET0: status + * RET1: msivalidstate + * ERRORS: EINVAL Invalid devhandle or msinum + * + * Get the current valid/enabled state for the MSI defined by the + * given devhandle and msinum. + */ +#define HV_FAST_PCI_MSI_GETVALID 0xc9 + +/* pci_msi_setvalid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSI_SETVALID + * ARG0: devhandle + * ARG1: msinum + * ARG2: msivalidstate + * RET0: status + * ERRORS: EINVAL Invalid devhandle or msinum or msivalidstate + * + * Set the current valid/enabled state for the MSI defined by the + * given devhandle and msinum. + */ +#define HV_FAST_PCI_MSI_SETVALID 0xca + +/* pci_msi_getmsiq() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSI_GETMSIQ + * ARG0: devhandle + * ARG1: msinum + * RET0: status + * RET1: msiqid + * ERRORS: EINVAL Invalid devhandle or msinum or MSI is unbound + * + * Get the MSI EQ that the MSI defined by the given devhandle and + * msinum is bound to. + */ +#define HV_FAST_PCI_MSI_GETMSIQ 0xcb + +/* pci_msi_setmsiq() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSI_SETMSIQ + * ARG0: devhandle + * ARG1: msinum + * ARG2: msitype + * ARG3: msiqid + * RET0: status + * ERRORS: EINVAL Invalid devhandle or msinum or msiqid + * + * Set the MSI EQ that the MSI defined by the given devhandle and + * msinum is bound to. + */ +#define HV_FAST_PCI_MSI_SETMSIQ 0xcc + +/* pci_msi_getstate() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSI_GETSTATE + * ARG0: devhandle + * ARG1: msinum + * RET0: status + * RET1: msistate + * ERRORS: EINVAL Invalid devhandle or msinum + * + * Get the state of the MSI defined by the given devhandle and msinum. + * If not initialized, return HV_MSISTATE_IDLE. + */ +#define HV_FAST_PCI_MSI_GETSTATE 0xcd + +/* pci_msi_setstate() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSI_SETSTATE + * ARG0: devhandle + * ARG1: msinum + * ARG2: msistate + * RET0: status + * ERRORS: EINVAL Invalid devhandle or msinum or msistate + * + * Set the state of the MSI defined by the given devhandle and msinum. + */ +#define HV_FAST_PCI_MSI_SETSTATE 0xce + +/* pci_msg_getmsiq() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSG_GETMSIQ + * ARG0: devhandle + * ARG1: msgtype + * RET0: status + * RET1: msiqid + * ERRORS: EINVAL Invalid devhandle or msgtype + * + * Get the MSI EQ of the MSG defined by the given devhandle and msgtype. + */ +#define HV_FAST_PCI_MSG_GETMSIQ 0xd0 + +/* pci_msg_setmsiq() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSG_SETMSIQ + * ARG0: devhandle + * ARG1: msgtype + * ARG2: msiqid + * RET0: status + * ERRORS: EINVAL Invalid devhandle, msgtype, or msiqid + * + * Set the MSI EQ of the MSG defined by the given devhandle and msgtype. + */ +#define HV_FAST_PCI_MSG_SETMSIQ 0xd1 + +/* pci_msg_getvalid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSG_GETVALID + * ARG0: devhandle + * ARG1: msgtype + * RET0: status + * RET1: msgvalidstate + * ERRORS: EINVAL Invalid devhandle or msgtype + * + * Get the valid/enabled state of the MSG defined by the given + * devhandle and msgtype. + */ +#define HV_FAST_PCI_MSG_GETVALID 0xd2 + +/* pci_msg_setvalid() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_PCI_MSG_SETVALID + * ARG0: devhandle + * ARG1: msgtype + * ARG2: msgvalidstate + * RET0: status + * ERRORS: EINVAL Invalid devhandle or msgtype or msgvalidstate + * + * Set the valid/enabled state of the MSG defined by the given + * devhandle and msgtype. + */ +#define HV_FAST_PCI_MSG_SETVALID 0xd3 + +/* Logical Domain Channel services. */ + +#define LDC_CHANNEL_DOWN 0 +#define LDC_CHANNEL_UP 1 +#define LDC_CHANNEL_RESETTING 2 + +/* ldc_tx_qconf() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_TX_QCONF + * ARG0: channel ID + * ARG1: real address base of queue + * ARG2: num entries in queue + * RET0: status + * + * Configure transmit queue for the LDC endpoint specified by the + * given channel ID, to be placed at the given real address, and + * be of the given num entries. Num entries must be a power of two. + * The real address base of the queue must be aligned on the queue + * size. Each queue entry is 64-bytes, so for example, a 32 entry + * queue must be aligned on a 2048 byte real address boundary. + * + * Upon configuration of a valid transmit queue the head and tail + * pointers are set to a hypervisor specific identical value indicating + * that the queue initially is empty. + * + * The endpoint's transmit queue is un-configured if num entries is zero. + * + * The maximum number of entries for each queue for a specific cpu may be + * determined from the machine description. A transmit queue may be + * specified even in the event that the LDC is down (peer endpoint has no + * receive queue specified). Transmission will begin as soon as the peer + * endpoint defines a receive queue. + * + * It is recommended that a guest wait for a transmit queue to empty prior + * to reconfiguring it, or un-configuring it. Re or un-configuring of a + * non-empty transmit queue behaves exactly as defined above, however it + * is undefined as to how many of the pending entries in the original queue + * will be delivered prior to the re-configuration taking effect. + * Furthermore, as the queue configuration causes a reset of the head and + * tail pointers there is no way for a guest to determine how many entries + * have been sent after the configuration operation. + */ +#define HV_FAST_LDC_TX_QCONF 0xe0 + +/* ldc_tx_qinfo() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_TX_QINFO + * ARG0: channel ID + * RET0: status + * RET1: real address base of queue + * RET2: num entries in queue + * + * Return the configuration info for the transmit queue of LDC endpoint + * defined by the given channel ID. The real address is the currently + * defined real address base of the defined queue, and num entries is the + * size of the queue in terms of number of entries. + * + * If the specified channel ID is a valid endpoint number, but no transmit + * queue has been defined this service will return success, but with num + * entries set to zero and the real address will have an undefined value. + */ +#define HV_FAST_LDC_TX_QINFO 0xe1 + +/* ldc_tx_get_state() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_TX_GET_STATE + * ARG0: channel ID + * RET0: status + * RET1: head offset + * RET2: tail offset + * RET3: channel state + * + * Return the transmit state, and the head and tail queue pointers, for + * the transmit queue of the LDC endpoint defined by the given channel ID. + * The head and tail values are the byte offset of the head and tail + * positions of the transmit queue for the specified endpoint. + */ +#define HV_FAST_LDC_TX_GET_STATE 0xe2 + +/* ldc_tx_set_qtail() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_TX_SET_QTAIL + * ARG0: channel ID + * ARG1: tail offset + * RET0: status + * + * Update the tail pointer for the transmit queue associated with the LDC + * endpoint defined by the given channel ID. The tail offset specified + * must be aligned on a 64 byte boundary, and calculated so as to increase + * the number of pending entries on the transmit queue. Any attempt to + * decrease the number of pending transmit queue entires is considered + * an invalid tail offset and will result in an EINVAL error. + * + * Since the tail of the transmit queue may not be moved backwards, the + * transmit queue may be flushed by configuring a new transmit queue, + * whereupon the hypervisor will configure the initial transmit head and + * tail pointers to be equal. + */ +#define HV_FAST_LDC_TX_SET_QTAIL 0xe3 + +/* ldc_rx_qconf() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_RX_QCONF + * ARG0: channel ID + * ARG1: real address base of queue + * ARG2: num entries in queue + * RET0: status + * + * Configure receive queue for the LDC endpoint specified by the + * given channel ID, to be placed at the given real address, and + * be of the given num entries. Num entries must be a power of two. + * The real address base of the queue must be aligned on the queue + * size. Each queue entry is 64-bytes, so for example, a 32 entry + * queue must be aligned on a 2048 byte real address boundary. + * + * The endpoint's transmit queue is un-configured if num entries is zero. + * + * If a valid receive queue is specified for a local endpoint the LDC is + * in the up state for the purpose of transmission to this endpoint. + * + * The maximum number of entries for each queue for a specific cpu may be + * determined from the machine description. + * + * As receive queue configuration causes a reset of the queue's head and + * tail pointers there is no way for a gues to determine how many entries + * have been received between a preceeding ldc_get_rx_state() API call + * and the completion of the configuration operation. It should be noted + * that datagram delivery is not guarenteed via domain channels anyway, + * and therefore any higher protocol should be resilient to datagram + * loss if necessary. However, to overcome this specific race potential + * it is recommended, for example, that a higher level protocol be employed + * to ensure either retransmission, or ensure that no datagrams are pending + * on the peer endpoint's transmit queue prior to the configuration process. + */ +#define HV_FAST_LDC_RX_QCONF 0xe4 + +/* ldc_rx_qinfo() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_RX_QINFO + * ARG0: channel ID + * RET0: status + * RET1: real address base of queue + * RET2: num entries in queue + * + * Return the configuration info for the receive queue of LDC endpoint + * defined by the given channel ID. The real address is the currently + * defined real address base of the defined queue, and num entries is the + * size of the queue in terms of number of entries. + * + * If the specified channel ID is a valid endpoint number, but no receive + * queue has been defined this service will return success, but with num + * entries set to zero and the real address will have an undefined value. + */ +#define HV_FAST_LDC_RX_QINFO 0xe5 + +/* ldc_rx_get_state() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_RX_GET_STATE + * ARG0: channel ID + * RET0: status + * RET1: head offset + * RET2: tail offset + * RET3: channel state + * + * Return the receive state, and the head and tail queue pointers, for + * the receive queue of the LDC endpoint defined by the given channel ID. + * The head and tail values are the byte offset of the head and tail + * positions of the receive queue for the specified endpoint. + */ +#define HV_FAST_LDC_RX_GET_STATE 0xe6 + +/* ldc_rx_set_qhead() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_RX_SET_QHEAD + * ARG0: channel ID + * ARG1: head offset + * RET0: status + * + * Update the head pointer for the receive queue associated with the LDC + * endpoint defined by the given channel ID. The head offset specified + * must be aligned on a 64 byte boundary, and calculated so as to decrease + * the number of pending entries on the receive queue. Any attempt to + * increase the number of pending receive queue entires is considered + * an invalid head offset and will result in an EINVAL error. + * + * The receive queue may be flushed by setting the head offset equal + * to the current tail offset. + */ +#define HV_FAST_LDC_RX_SET_QHEAD 0xe7 + +/* LDC Map Table Entry. Each slot is defined by a translation table + * entry, as specified by the LDC_MTE_* bits below, and a 64-bit + * hypervisor invalidation cookie. + */ +#define LDC_MTE_PADDR 0x0fffffffffffe000 /* pa[55:13] */ +#define LDC_MTE_COPY_W 0x0000000000000400 /* copy write access */ +#define LDC_MTE_COPY_R 0x0000000000000200 /* copy read access */ +#define LDC_MTE_IOMMU_W 0x0000000000000100 /* IOMMU write access */ +#define LDC_MTE_IOMMU_R 0x0000000000000080 /* IOMMU read access */ +#define LDC_MTE_EXEC 0x0000000000000040 /* execute */ +#define LDC_MTE_WRITE 0x0000000000000020 /* read */ +#define LDC_MTE_READ 0x0000000000000010 /* write */ +#define LDC_MTE_SZALL 0x000000000000000f /* page size bits */ +#define LDC_MTE_SZ16GB 0x0000000000000007 /* 16GB page */ +#define LDC_MTE_SZ2GB 0x0000000000000006 /* 2GB page */ +#define LDC_MTE_SZ256MB 0x0000000000000005 /* 256MB page */ +#define LDC_MTE_SZ32MB 0x0000000000000004 /* 32MB page */ +#define LDC_MTE_SZ4MB 0x0000000000000003 /* 4MB page */ +#define LDC_MTE_SZ512K 0x0000000000000002 /* 512K page */ +#define LDC_MTE_SZ64K 0x0000000000000001 /* 64K page */ +#define LDC_MTE_SZ8K 0x0000000000000000 /* 8K page */ + +#ifndef __ASSEMBLY__ +struct ldc_mtable_entry { + unsigned long mte; + unsigned long cookie; +}; +#endif + +/* ldc_set_map_table() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_SET_MAP_TABLE + * ARG0: channel ID + * ARG1: table real address + * ARG2: num entries + * RET0: status + * + * Register the MTE table at the given table real address, with the + * specified num entries, for the LDC indicated by the given channel + * ID. + */ +#define HV_FAST_LDC_SET_MAP_TABLE 0xea + +/* ldc_get_map_table() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_GET_MAP_TABLE + * ARG0: channel ID + * RET0: status + * RET1: table real address + * RET2: num entries + * + * Return the configuration of the current mapping table registered + * for the given channel ID. + */ +#define HV_FAST_LDC_GET_MAP_TABLE 0xeb + +#define LDC_COPY_IN 0 +#define LDC_COPY_OUT 1 + +/* ldc_copy() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_COPY + * ARG0: channel ID + * ARG1: LDC_COPY_* direction code + * ARG2: target real address + * ARG3: local real address + * ARG4: length in bytes + * RET0: status + * RET1: actual length in bytes + */ +#define HV_FAST_LDC_COPY 0xec + +#define LDC_MEM_READ 1 +#define LDC_MEM_WRITE 2 +#define LDC_MEM_EXEC 4 + +/* ldc_mapin() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_MAPIN + * ARG0: channel ID + * ARG1: cookie + * RET0: status + * RET1: real address + * RET2: LDC_MEM_* permissions + */ +#define HV_FAST_LDC_MAPIN 0xed + +/* ldc_unmap() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_UNMAP + * ARG0: real address + * RET0: status + */ +#define HV_FAST_LDC_UNMAP 0xee + +/* ldc_revoke() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_LDC_REVOKE + * ARG0: channel ID + * ARG1: cookie + * ARG2: ldc_mtable_entry cookie + * RET0: status + */ +#define HV_FAST_LDC_REVOKE 0xef + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_ldc_tx_qconf(unsigned long channel, + unsigned long ra, + unsigned long num_entries); +extern unsigned long sun4v_ldc_tx_qinfo(unsigned long channel, + unsigned long *ra, + unsigned long *num_entries); +extern unsigned long sun4v_ldc_tx_get_state(unsigned long channel, + unsigned long *head_off, + unsigned long *tail_off, + unsigned long *chan_state); +extern unsigned long sun4v_ldc_tx_set_qtail(unsigned long channel, + unsigned long tail_off); +extern unsigned long sun4v_ldc_rx_qconf(unsigned long channel, + unsigned long ra, + unsigned long num_entries); +extern unsigned long sun4v_ldc_rx_qinfo(unsigned long channel, + unsigned long *ra, + unsigned long *num_entries); +extern unsigned long sun4v_ldc_rx_get_state(unsigned long channel, + unsigned long *head_off, + unsigned long *tail_off, + unsigned long *chan_state); +extern unsigned long sun4v_ldc_rx_set_qhead(unsigned long channel, + unsigned long head_off); +extern unsigned long sun4v_ldc_set_map_table(unsigned long channel, + unsigned long ra, + unsigned long num_entries); +extern unsigned long sun4v_ldc_get_map_table(unsigned long channel, + unsigned long *ra, + unsigned long *num_entries); +extern unsigned long sun4v_ldc_copy(unsigned long channel, + unsigned long dir_code, + unsigned long tgt_raddr, + unsigned long lcl_raddr, + unsigned long len, + unsigned long *actual_len); +extern unsigned long sun4v_ldc_mapin(unsigned long channel, + unsigned long cookie, + unsigned long *ra, + unsigned long *perm); +extern unsigned long sun4v_ldc_unmap(unsigned long ra); +extern unsigned long sun4v_ldc_revoke(unsigned long channel, + unsigned long cookie, + unsigned long mte_cookie); +#endif + +/* Performance counter services. */ + +#define HV_PERF_JBUS_PERF_CTRL_REG 0x00 +#define HV_PERF_JBUS_PERF_CNT_REG 0x01 +#define HV_PERF_DRAM_PERF_CTRL_REG_0 0x02 +#define HV_PERF_DRAM_PERF_CNT_REG_0 0x03 +#define HV_PERF_DRAM_PERF_CTRL_REG_1 0x04 +#define HV_PERF_DRAM_PERF_CNT_REG_1 0x05 +#define HV_PERF_DRAM_PERF_CTRL_REG_2 0x06 +#define HV_PERF_DRAM_PERF_CNT_REG_2 0x07 +#define HV_PERF_DRAM_PERF_CTRL_REG_3 0x08 +#define HV_PERF_DRAM_PERF_CNT_REG_3 0x09 + +/* get_perfreg() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_GET_PERFREG + * ARG0: performance reg number + * RET0: status + * RET1: performance reg value + * ERRORS: EINVAL Invalid performance register number + * ENOACCESS No access allowed to performance counters + * + * Read the value of the given DRAM/JBUS performance counter/control register. + */ +#define HV_FAST_GET_PERFREG 0x100 + +/* set_perfreg() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_SET_PERFREG + * ARG0: performance reg number + * ARG1: performance reg value + * RET0: status + * ERRORS: EINVAL Invalid performance register number + * ENOACCESS No access allowed to performance counters + * + * Write the given performance reg value to the given DRAM/JBUS + * performance counter/control register. + */ +#define HV_FAST_SET_PERFREG 0x101 + +/* MMU statistics services. + * + * The hypervisor maintains MMU statistics and privileged code provides + * a buffer where these statistics can be collected. It is continually + * updated once configured. The layout is as follows: + */ +#ifndef __ASSEMBLY__ +struct hv_mmu_statistics { + unsigned long immu_tsb_hits_ctx0_8k_tte; + unsigned long immu_tsb_ticks_ctx0_8k_tte; + unsigned long immu_tsb_hits_ctx0_64k_tte; + unsigned long immu_tsb_ticks_ctx0_64k_tte; + unsigned long __reserved1[2]; + unsigned long immu_tsb_hits_ctx0_4mb_tte; + unsigned long immu_tsb_ticks_ctx0_4mb_tte; + unsigned long __reserved2[2]; + unsigned long immu_tsb_hits_ctx0_256mb_tte; + unsigned long immu_tsb_ticks_ctx0_256mb_tte; + unsigned long __reserved3[4]; + unsigned long immu_tsb_hits_ctxnon0_8k_tte; + unsigned long immu_tsb_ticks_ctxnon0_8k_tte; + unsigned long immu_tsb_hits_ctxnon0_64k_tte; + unsigned long immu_tsb_ticks_ctxnon0_64k_tte; + unsigned long __reserved4[2]; + unsigned long immu_tsb_hits_ctxnon0_4mb_tte; + unsigned long immu_tsb_ticks_ctxnon0_4mb_tte; + unsigned long __reserved5[2]; + unsigned long immu_tsb_hits_ctxnon0_256mb_tte; + unsigned long immu_tsb_ticks_ctxnon0_256mb_tte; + unsigned long __reserved6[4]; + unsigned long dmmu_tsb_hits_ctx0_8k_tte; + unsigned long dmmu_tsb_ticks_ctx0_8k_tte; + unsigned long dmmu_tsb_hits_ctx0_64k_tte; + unsigned long dmmu_tsb_ticks_ctx0_64k_tte; + unsigned long __reserved7[2]; + unsigned long dmmu_tsb_hits_ctx0_4mb_tte; + unsigned long dmmu_tsb_ticks_ctx0_4mb_tte; + unsigned long __reserved8[2]; + unsigned long dmmu_tsb_hits_ctx0_256mb_tte; + unsigned long dmmu_tsb_ticks_ctx0_256mb_tte; + unsigned long __reserved9[4]; + unsigned long dmmu_tsb_hits_ctxnon0_8k_tte; + unsigned long dmmu_tsb_ticks_ctxnon0_8k_tte; + unsigned long dmmu_tsb_hits_ctxnon0_64k_tte; + unsigned long dmmu_tsb_ticks_ctxnon0_64k_tte; + unsigned long __reserved10[2]; + unsigned long dmmu_tsb_hits_ctxnon0_4mb_tte; + unsigned long dmmu_tsb_ticks_ctxnon0_4mb_tte; + unsigned long __reserved11[2]; + unsigned long dmmu_tsb_hits_ctxnon0_256mb_tte; + unsigned long dmmu_tsb_ticks_ctxnon0_256mb_tte; + unsigned long __reserved12[4]; +}; +#endif + +/* mmustat_conf() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMUSTAT_CONF + * ARG0: real address + * RET0: status + * RET1: real address + * ERRORS: ENORADDR Invalid real address + * EBADALIGN Real address not aligned on 64-byte boundary + * EBADTRAP API not supported on this processor + * + * Enable MMU statistic gathering using the buffer at the given real + * address on the current virtual CPU. The new buffer real address + * is given in ARG1, and the previously specified buffer real address + * is returned in RET1, or is returned as zero for the first invocation. + * + * If the passed in real address argument is zero, this will disable + * MMU statistic collection on the current virtual CPU. If an error is + * returned then no statistics are collected. + * + * The buffer contents should be initialized to all zeros before being + * given to the hypervisor or else the statistics will be meaningless. + */ +#define HV_FAST_MMUSTAT_CONF 0x102 + +/* mmustat_info() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_MMUSTAT_INFO + * RET0: status + * RET1: real address + * ERRORS: EBADTRAP API not supported on this processor + * + * Return the current state and real address of the currently configured + * MMU statistics buffer on the current virtual CPU. + */ +#define HV_FAST_MMUSTAT_INFO 0x103 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_mmustat_conf(unsigned long ra, unsigned long *orig_ra); +extern unsigned long sun4v_mmustat_info(unsigned long *ra); +#endif + +/* NCS crypto services */ + +/* ncs_request() sub-function numbers */ +#define HV_NCS_QCONF 0x01 +#define HV_NCS_QTAIL_UPDATE 0x02 + +#ifndef __ASSEMBLY__ +struct hv_ncs_queue_entry { + /* MAU Control Register */ + unsigned long mau_control; +#define MAU_CONTROL_INV_PARITY 0x0000000000002000 +#define MAU_CONTROL_STRAND 0x0000000000001800 +#define MAU_CONTROL_BUSY 0x0000000000000400 +#define MAU_CONTROL_INT 0x0000000000000200 +#define MAU_CONTROL_OP 0x00000000000001c0 +#define MAU_CONTROL_OP_SHIFT 6 +#define MAU_OP_LOAD_MA_MEMORY 0x0 +#define MAU_OP_STORE_MA_MEMORY 0x1 +#define MAU_OP_MODULAR_MULT 0x2 +#define MAU_OP_MODULAR_REDUCE 0x3 +#define MAU_OP_MODULAR_EXP_LOOP 0x4 +#define MAU_CONTROL_LEN 0x000000000000003f +#define MAU_CONTROL_LEN_SHIFT 0 + + /* Real address of bytes to load or store bytes + * into/out-of the MAU. + */ + unsigned long mau_mpa; + + /* Modular Arithmetic MA Offset Register. */ + unsigned long mau_ma; + + /* Modular Arithmetic N Prime Register. */ + unsigned long mau_np; +}; + +struct hv_ncs_qconf_arg { + unsigned long mid; /* MAU ID, 1 per core on Niagara */ + unsigned long base; /* Real address base of queue */ + unsigned long end; /* Real address end of queue */ + unsigned long num_ents; /* Number of entries in queue */ +}; + +struct hv_ncs_qtail_update_arg { + unsigned long mid; /* MAU ID, 1 per core on Niagara */ + unsigned long tail; /* New tail index to use */ + unsigned long syncflag; /* only SYNCFLAG_SYNC is implemented */ +#define HV_NCS_SYNCFLAG_SYNC 0x00 +#define HV_NCS_SYNCFLAG_ASYNC 0x01 +}; +#endif + +/* ncs_request() + * TRAP: HV_FAST_TRAP + * FUNCTION: HV_FAST_NCS_REQUEST + * ARG0: NCS sub-function + * ARG1: sub-function argument real address + * ARG2: size in bytes of sub-function argument + * RET0: status + * + * The MAU chip of the Niagara processor is not directly accessible + * to privileged code, instead it is programmed indirectly via this + * hypervisor API. + * + * The interfaces defines a queue of MAU operations to perform. + * Privileged code registers a queue with the hypervisor by invoking + * this HVAPI with the HV_NCS_QCONF sub-function, which defines the + * base, end, and number of entries of the queue. Each queue entry + * contains a MAU register struct block. + * + * The privileged code then proceeds to add entries to the queue and + * then invoke the HV_NCS_QTAIL_UPDATE sub-function. Since only + * synchronous operations are supported by the current hypervisor, + * HV_NCS_QTAIL_UPDATE will run all the pending queue entries to + * completion and return HV_EOK, or return an error code. + * + * The real address of the sub-function argument must be aligned on at + * least an 8-byte boundary. + * + * The tail argument of HV_NCS_QTAIL_UPDATE is an index, not a byte + * offset, into the queue and must be less than or equal the 'num_ents' + * argument given in the HV_NCS_QCONF call. + */ +#define HV_FAST_NCS_REQUEST 0x110 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_ncs_request(unsigned long request, + unsigned long arg_ra, + unsigned long arg_size); +#endif + +#define HV_FAST_FIRE_GET_PERFREG 0x120 +#define HV_FAST_FIRE_SET_PERFREG 0x121 + +/* Function numbers for HV_CORE_TRAP. */ +#define HV_CORE_SET_VER 0x00 +#define HV_CORE_PUTCHAR 0x01 +#define HV_CORE_EXIT 0x02 +#define HV_CORE_GET_VER 0x03 + +/* Hypervisor API groups for use with HV_CORE_SET_VER and + * HV_CORE_GET_VER. + */ +#define HV_GRP_SUN4V 0x0000 +#define HV_GRP_CORE 0x0001 +#define HV_GRP_INTR 0x0002 +#define HV_GRP_SOFT_STATE 0x0003 +#define HV_GRP_PCI 0x0100 +#define HV_GRP_LDOM 0x0101 +#define HV_GRP_SVC_CHAN 0x0102 +#define HV_GRP_NCS 0x0103 +#define HV_GRP_NIAG_PERF 0x0200 +#define HV_GRP_FIRE_PERF 0x0201 +#define HV_GRP_DIAG 0x0300 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_get_version(unsigned long group, + unsigned long *major, + unsigned long *minor); +extern unsigned long sun4v_set_version(unsigned long group, + unsigned long major, + unsigned long minor, + unsigned long *actual_minor); + +extern int sun4v_hvapi_register(unsigned long group, unsigned long major, + unsigned long *minor); +extern void sun4v_hvapi_unregister(unsigned long group); +extern int sun4v_hvapi_get(unsigned long group, + unsigned long *major, + unsigned long *minor); +extern void sun4v_hvapi_init(void); +#endif + +#endif /* !(_SPARC64_HYPERVISOR_H) */ diff --git a/include/asm-sparc/intr_queue.h b/include/asm-sparc/intr_queue.h new file mode 100644 index 000000000000..206077dedc2a --- /dev/null +++ b/include/asm-sparc/intr_queue.h @@ -0,0 +1,15 @@ +#ifndef _SPARC64_INTR_QUEUE_H +#define _SPARC64_INTR_QUEUE_H + +/* Sun4v interrupt queue registers, accessed via ASI_QUEUE. */ + +#define INTRQ_CPU_MONDO_HEAD 0x3c0 /* CPU mondo head */ +#define INTRQ_CPU_MONDO_TAIL 0x3c8 /* CPU mondo tail */ +#define INTRQ_DEVICE_MONDO_HEAD 0x3d0 /* Device mondo head */ +#define INTRQ_DEVICE_MONDO_TAIL 0x3d8 /* Device mondo tail */ +#define INTRQ_RESUM_MONDO_HEAD 0x3e0 /* Resumable error mondo head */ +#define INTRQ_RESUM_MONDO_TAIL 0x3e8 /* Resumable error mondo tail */ +#define INTRQ_NONRESUM_MONDO_HEAD 0x3f0 /* Non-resumable error mondo head */ +#define INTRQ_NONRESUM_MONDO_TAIL 0x3f8 /* Non-resumable error mondo head */ + +#endif /* !(_SPARC64_INTR_QUEUE_H) */ diff --git a/include/asm-sparc/kprobes.h b/include/asm-sparc/kprobes.h new file mode 100644 index 000000000000..5879d71afdaa --- /dev/null +++ b/include/asm-sparc/kprobes.h @@ -0,0 +1,49 @@ +#ifndef _SPARC64_KPROBES_H +#define _SPARC64_KPROBES_H + +#include +#include + +typedef u32 kprobe_opcode_t; + +#define BREAKPOINT_INSTRUCTION 0x91d02070 /* ta 0x70 */ +#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */ +#define MAX_INSN_SIZE 2 + +#define kretprobe_blacklist_size 0 + +#define arch_remove_kprobe(p) do {} while (0) + +#define flush_insn_slot(p) \ +do { flushi(&(p)->ainsn.insn[0]); \ + flushi(&(p)->ainsn.insn[1]); \ +} while (0) + +void kretprobe_trampoline(void); + +/* Architecture specific copy of original instruction*/ +struct arch_specific_insn { + /* copy of the original instruction */ + kprobe_opcode_t insn[MAX_INSN_SIZE]; +}; + +struct prev_kprobe { + struct kprobe *kp; + unsigned long status; + unsigned long orig_tnpc; + unsigned long orig_tstate_pil; +}; + +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned long kprobe_status; + unsigned long kprobe_orig_tnpc; + unsigned long kprobe_orig_tstate_pil; + struct pt_regs jprobe_saved_regs; + struct prev_kprobe prev_kprobe; +}; + +extern int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data); +extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); +#endif /* _SPARC64_KPROBES_H */ diff --git a/include/asm-sparc/ldc.h b/include/asm-sparc/ldc.h new file mode 100644 index 000000000000..bdb524a7b814 --- /dev/null +++ b/include/asm-sparc/ldc.h @@ -0,0 +1,138 @@ +#ifndef _SPARC64_LDC_H +#define _SPARC64_LDC_H + +#include + +extern int ldom_domaining_enabled; +extern void ldom_set_var(const char *var, const char *value); +extern void ldom_reboot(const char *boot_command); +extern void ldom_power_off(void); + +/* The event handler will be evoked when link state changes + * or data becomes available on the receive side. + * + * For non-RAW links, if the LDC_EVENT_RESET event arrives the + * driver should reset all of it's internal state and reinvoke + * ldc_connect() to try and bring the link up again. + * + * For RAW links, ldc_connect() is not used. Instead the driver + * just waits for the LDC_EVENT_UP event. + */ +struct ldc_channel_config { + void (*event)(void *arg, int event); + + u32 mtu; + unsigned int rx_irq; + unsigned int tx_irq; + u8 mode; +#define LDC_MODE_RAW 0x00 +#define LDC_MODE_UNRELIABLE 0x01 +#define LDC_MODE_RESERVED 0x02 +#define LDC_MODE_STREAM 0x03 + + u8 debug; +#define LDC_DEBUG_HS 0x01 +#define LDC_DEBUG_STATE 0x02 +#define LDC_DEBUG_RX 0x04 +#define LDC_DEBUG_TX 0x08 +#define LDC_DEBUG_DATA 0x10 +}; + +#define LDC_EVENT_RESET 0x01 +#define LDC_EVENT_UP 0x02 +#define LDC_EVENT_DATA_READY 0x04 + +#define LDC_STATE_INVALID 0x00 +#define LDC_STATE_INIT 0x01 +#define LDC_STATE_BOUND 0x02 +#define LDC_STATE_READY 0x03 +#define LDC_STATE_CONNECTED 0x04 + +struct ldc_channel; + +/* Allocate state for a channel. */ +extern struct ldc_channel *ldc_alloc(unsigned long id, + const struct ldc_channel_config *cfgp, + void *event_arg); + +/* Shut down and free state for a channel. */ +extern void ldc_free(struct ldc_channel *lp); + +/* Register TX and RX queues of the link with the hypervisor. */ +extern int ldc_bind(struct ldc_channel *lp, const char *name); + +/* For non-RAW protocols we need to complete a handshake before + * communication can proceed. ldc_connect() does that, if the + * handshake completes successfully, an LDC_EVENT_UP event will + * be sent up to the driver. + */ +extern int ldc_connect(struct ldc_channel *lp); +extern int ldc_disconnect(struct ldc_channel *lp); + +extern int ldc_state(struct ldc_channel *lp); + +/* Read and write operations. Only valid when the link is up. */ +extern int ldc_write(struct ldc_channel *lp, const void *buf, + unsigned int size); +extern int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size); + +#define LDC_MAP_SHADOW 0x01 +#define LDC_MAP_DIRECT 0x02 +#define LDC_MAP_IO 0x04 +#define LDC_MAP_R 0x08 +#define LDC_MAP_W 0x10 +#define LDC_MAP_X 0x20 +#define LDC_MAP_RW (LDC_MAP_R | LDC_MAP_W) +#define LDC_MAP_RWX (LDC_MAP_R | LDC_MAP_W | LDC_MAP_X) +#define LDC_MAP_ALL 0x03f + +struct ldc_trans_cookie { + u64 cookie_addr; + u64 cookie_size; +}; + +struct scatterlist; +extern int ldc_map_sg(struct ldc_channel *lp, + struct scatterlist *sg, int num_sg, + struct ldc_trans_cookie *cookies, int ncookies, + unsigned int map_perm); + +extern int ldc_map_single(struct ldc_channel *lp, + void *buf, unsigned int len, + struct ldc_trans_cookie *cookies, int ncookies, + unsigned int map_perm); + +extern void ldc_unmap(struct ldc_channel *lp, struct ldc_trans_cookie *cookies, + int ncookies); + +extern int ldc_copy(struct ldc_channel *lp, int copy_dir, + void *buf, unsigned int len, unsigned long offset, + struct ldc_trans_cookie *cookies, int ncookies); + +static inline int ldc_get_dring_entry(struct ldc_channel *lp, + void *buf, unsigned int len, + unsigned long offset, + struct ldc_trans_cookie *cookies, + int ncookies) +{ + return ldc_copy(lp, LDC_COPY_IN, buf, len, offset, cookies, ncookies); +} + +static inline int ldc_put_dring_entry(struct ldc_channel *lp, + void *buf, unsigned int len, + unsigned long offset, + struct ldc_trans_cookie *cookies, + int ncookies) +{ + return ldc_copy(lp, LDC_COPY_OUT, buf, len, offset, cookies, ncookies); +} + +extern void *ldc_alloc_exp_dring(struct ldc_channel *lp, unsigned int len, + struct ldc_trans_cookie *cookies, + int *ncookies, unsigned int map_perm); + +extern void ldc_free_exp_dring(struct ldc_channel *lp, void *buf, + unsigned int len, + struct ldc_trans_cookie *cookies, int ncookies); + +#endif /* _SPARC64_LDC_H */ diff --git a/include/asm-sparc/lmb.h b/include/asm-sparc/lmb.h new file mode 100644 index 000000000000..6a352cbcf520 --- /dev/null +++ b/include/asm-sparc/lmb.h @@ -0,0 +1,10 @@ +#ifndef _SPARC64_LMB_H +#define _SPARC64_LMB_H + +#include + +#define LMB_DBG(fmt...) prom_printf(fmt) + +#define LMB_REAL_LIMIT 0 + +#endif /* !(_SPARC64_LMB_H) */ diff --git a/include/asm-sparc/lsu.h b/include/asm-sparc/lsu.h new file mode 100644 index 000000000000..7190f8de90a0 --- /dev/null +++ b/include/asm-sparc/lsu.h @@ -0,0 +1,19 @@ +#ifndef _SPARC64_LSU_H +#define _SPARC64_LSU_H + +#include + +/* LSU Control Register */ +#define LSU_CONTROL_PM _AC(0x000001fe00000000,UL) /* Phys-watchpoint byte mask*/ +#define LSU_CONTROL_VM _AC(0x00000001fe000000,UL) /* Virt-watchpoint byte mask*/ +#define LSU_CONTROL_PR _AC(0x0000000001000000,UL) /* Phys-rd watchpoint enable*/ +#define LSU_CONTROL_PW _AC(0x0000000000800000,UL) /* Phys-wr watchpoint enable*/ +#define LSU_CONTROL_VR _AC(0x0000000000400000,UL) /* Virt-rd watchpoint enable*/ +#define LSU_CONTROL_VW _AC(0x0000000000200000,UL) /* Virt-wr watchpoint enable*/ +#define LSU_CONTROL_FM _AC(0x00000000000ffff0,UL) /* Parity mask enables. */ +#define LSU_CONTROL_DM _AC(0x0000000000000008,UL) /* Data MMU enable. */ +#define LSU_CONTROL_IM _AC(0x0000000000000004,UL) /* Instruction MMU enable. */ +#define LSU_CONTROL_DC _AC(0x0000000000000002,UL) /* Data cache enable. */ +#define LSU_CONTROL_IC _AC(0x0000000000000001,UL) /* Instruction cache enable.*/ + +#endif /* !(_SPARC64_LSU_H) */ diff --git a/include/asm-sparc/mdesc.h b/include/asm-sparc/mdesc.h new file mode 100644 index 000000000000..1acc7272e537 --- /dev/null +++ b/include/asm-sparc/mdesc.h @@ -0,0 +1,78 @@ +#ifndef _SPARC64_MDESC_H +#define _SPARC64_MDESC_H + +#include +#include +#include + +struct mdesc_handle; + +/* Machine description operations are to be surrounded by grab and + * release calls. The mdesc_handle returned from the grab is + * the first argument to all of the operational calls that work + * on mdescs. + */ +extern struct mdesc_handle *mdesc_grab(void); +extern void mdesc_release(struct mdesc_handle *); + +#define MDESC_NODE_NULL (~(u64)0) + +extern u64 mdesc_node_by_name(struct mdesc_handle *handle, + u64 from_node, const char *name); +#define mdesc_for_each_node_by_name(__hdl, __node, __name) \ + for (__node = mdesc_node_by_name(__hdl, MDESC_NODE_NULL, __name); \ + (__node) != MDESC_NODE_NULL; \ + __node = mdesc_node_by_name(__hdl, __node, __name)) + +/* Access to property values returned from mdesc_get_property() are + * only valid inside of a mdesc_grab()/mdesc_release() sequence. + * Once mdesc_release() is called, the memory backed up by these + * pointers may reference freed up memory. + * + * Therefore callers must make copies of any property values + * they need. + * + * These same rules apply to mdesc_node_name(). + */ +extern const void *mdesc_get_property(struct mdesc_handle *handle, + u64 node, const char *name, int *lenp); +extern const char *mdesc_node_name(struct mdesc_handle *hp, u64 node); + +/* MD arc iteration, the standard sequence is: + * + * unsigned long arc; + * mdesc_for_each_arc(arc, handle, node, MDESC_ARC_TYPE_{FWD,BACK}) { + * unsigned long target = mdesc_arc_target(handle, arc); + * ... + * } + */ + +#define MDESC_ARC_TYPE_FWD "fwd" +#define MDESC_ARC_TYPE_BACK "back" + +extern u64 mdesc_next_arc(struct mdesc_handle *handle, u64 from, + const char *arc_type); +#define mdesc_for_each_arc(__arc, __hdl, __node, __type) \ + for (__arc = mdesc_next_arc(__hdl, __node, __type); \ + (__arc) != MDESC_NODE_NULL; \ + __arc = mdesc_next_arc(__hdl, __arc, __type)) + +extern u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc); + +extern void mdesc_update(void); + +struct mdesc_notifier_client { + void (*add)(struct mdesc_handle *handle, u64 node); + void (*remove)(struct mdesc_handle *handle, u64 node); + + const char *node_name; + struct mdesc_notifier_client *next; +}; + +extern void mdesc_register_notifier(struct mdesc_notifier_client *client); + +extern void mdesc_fill_in_cpu_data(cpumask_t mask); + +extern void sun4v_mdesc_init(void); + +#endif diff --git a/include/asm-sparc/mmzone.h b/include/asm-sparc/mmzone.h new file mode 100644 index 000000000000..ebf5986c12ed --- /dev/null +++ b/include/asm-sparc/mmzone.h @@ -0,0 +1,17 @@ +#ifndef _SPARC64_MMZONE_H +#define _SPARC64_MMZONE_H + +#ifdef CONFIG_NEED_MULTIPLE_NODES + +extern struct pglist_data *node_data[]; + +#define NODE_DATA(nid) (node_data[nid]) +#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) +#define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn) + +extern int numa_cpu_lookup_table[]; +extern cpumask_t numa_cpumask_lookup_table[]; + +#endif /* CONFIG_NEED_MULTIPLE_NODES */ + +#endif /* _SPARC64_MMZONE_H */ diff --git a/include/asm-sparc/ns87303.h b/include/asm-sparc/ns87303.h new file mode 100644 index 000000000000..686defe6aaa0 --- /dev/null +++ b/include/asm-sparc/ns87303.h @@ -0,0 +1,118 @@ +/* ns87303.h: Configuration Register Description for the + * National Semiconductor PC87303 (SuperIO). + * + * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) + */ + +#ifndef _SPARC_NS87303_H +#define _SPARC_NS87303_H 1 + +/* + * Control Register Index Values + */ +#define FER 0x00 +#define FAR 0x01 +#define PTR 0x02 +#define FCR 0x03 +#define PCR 0x04 +#define KRR 0x05 +#define PMC 0x06 +#define TUP 0x07 +#define SID 0x08 +#define ASC 0x09 +#define CS0CF0 0x0a +#define CS0CF1 0x0b +#define CS1CF0 0x0c +#define CS1CF1 0x0d + +/* Function Enable Register (FER) bits */ +#define FER_EDM 0x10 /* Encoded Drive and Motor pin information */ + +/* Function Address Register (FAR) bits */ +#define FAR_LPT_MASK 0x03 +#define FAR_LPTB 0x00 +#define FAR_LPTA 0x01 +#define FAR_LPTC 0x02 + +/* Power and Test Register (PTR) bits */ +#define PTR_LPTB_IRQ7 0x08 +#define PTR_LEVEL_IRQ 0x80 /* When not ECP/EPP: Use level IRQ */ +#define PTR_LPT_REG_DIR 0x80 /* When ECP/EPP: LPT CTR controlls direction */ + /* of the parallel port */ + +/* Function Control Register (FCR) bits */ +#define FCR_LDE 0x10 /* Logical Drive Exchange */ +#define FCR_ZWS_ENA 0x20 /* Enable short host read/write in ECP/EPP */ + +/* Printer Control Register (PCR) bits */ +#define PCR_EPP_ENABLE 0x01 +#define PCR_EPP_IEEE 0x02 /* Enable EPP Version 1.9 (IEEE 1284) */ +#define PCR_ECP_ENABLE 0x04 +#define PCR_ECP_CLK_ENA 0x08 /* If 0 ECP Clock is stopped on Power down */ +#define PCR_IRQ_POLAR 0x20 /* If 0 IRQ is level high or negative pulse, */ + /* if 1 polarity is inverted */ +#define PCR_IRQ_ODRAIN 0x40 /* If 1, IRQ is open drain */ + +/* Tape UARTs and Parallel Port Config Register (TUP) bits */ +#define TUP_EPP_TIMO 0x02 /* Enable EPP timeout IRQ */ + +/* Advanced SuperIO Config Register (ASC) bits */ +#define ASC_LPT_IRQ7 0x01 /* Always use IRQ7 for LPT */ +#define ASC_DRV2_SEL 0x02 /* Logical Drive Exchange controlled by TDR */ + +#define FER_RESERVED 0x00 +#define FAR_RESERVED 0x00 +#define PTR_RESERVED 0x73 +#define FCR_RESERVED 0xc4 +#define PCR_RESERVED 0x10 +#define KRR_RESERVED 0x00 +#define PMC_RESERVED 0x98 +#define TUP_RESERVED 0xfb +#define SIP_RESERVED 0x00 +#define ASC_RESERVED 0x18 +#define CS0CF0_RESERVED 0x00 +#define CS0CF1_RESERVED 0x08 +#define CS1CF0_RESERVED 0x00 +#define CS1CF1_RESERVED 0x08 + +#ifdef __KERNEL__ + +#include + +#include +#include + +extern spinlock_t ns87303_lock; + +static inline int ns87303_modify(unsigned long port, unsigned int index, + unsigned char clr, unsigned char set) +{ + static unsigned char reserved[] = { + FER_RESERVED, FAR_RESERVED, PTR_RESERVED, FCR_RESERVED, + PCR_RESERVED, KRR_RESERVED, PMC_RESERVED, TUP_RESERVED, + SIP_RESERVED, ASC_RESERVED, CS0CF0_RESERVED, CS0CF1_RESERVED, + CS1CF0_RESERVED, CS1CF1_RESERVED + }; + unsigned long flags; + unsigned char value; + + if (index > 0x0d) + return -EINVAL; + + spin_lock_irqsave(&ns87303_lock, flags); + + outb(index, port); + value = inb(port + 1); + value &= ~(reserved[index] | clr); + value |= set; + outb(value, port + 1); + outb(value, port + 1); + + spin_unlock_irqrestore(&ns87303_lock, flags); + + return 0; +} + +#endif /* __KERNEL__ */ + +#endif /* !(_SPARC_NS87303_H) */ diff --git a/include/asm-sparc/parport.h b/include/asm-sparc/parport.h new file mode 100644 index 000000000000..7818b2523b8d --- /dev/null +++ b/include/asm-sparc/parport.h @@ -0,0 +1,246 @@ +/* parport.h: sparc64 specific parport initialization and dma. + * + * Copyright (C) 1999 Eddie C. Dost (ecd@skynet.be) + */ + +#ifndef _ASM_SPARC64_PARPORT_H +#define _ASM_SPARC64_PARPORT_H 1 + +#include +#include +#include +#include + +#define PARPORT_PC_MAX_PORTS PARPORT_MAX + +/* + * While sparc64 doesn't have an ISA DMA API, we provide something that looks + * close enough to make parport_pc happy + */ +#define HAS_DMA + +static DEFINE_SPINLOCK(dma_spin_lock); + +#define claim_dma_lock() \ +({ unsigned long flags; \ + spin_lock_irqsave(&dma_spin_lock, flags); \ + flags; \ +}) + +#define release_dma_lock(__flags) \ + spin_unlock_irqrestore(&dma_spin_lock, __flags); + +static struct sparc_ebus_info { + struct ebus_dma_info info; + unsigned int addr; + unsigned int count; + int lock; + + struct parport *port; +} sparc_ebus_dmas[PARPORT_PC_MAX_PORTS]; + +static DECLARE_BITMAP(dma_slot_map, PARPORT_PC_MAX_PORTS); + +static inline int request_dma(unsigned int dmanr, const char *device_id) +{ + if (dmanr >= PARPORT_PC_MAX_PORTS) + return -EINVAL; + if (xchg(&sparc_ebus_dmas[dmanr].lock, 1) != 0) + return -EBUSY; + return 0; +} + +static inline void free_dma(unsigned int dmanr) +{ + if (dmanr >= PARPORT_PC_MAX_PORTS) { + printk(KERN_WARNING "Trying to free DMA%d\n", dmanr); + return; + } + if (xchg(&sparc_ebus_dmas[dmanr].lock, 0) == 0) { + printk(KERN_WARNING "Trying to free free DMA%d\n", dmanr); + return; + } +} + +static inline void enable_dma(unsigned int dmanr) +{ + ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 1); + + if (ebus_dma_request(&sparc_ebus_dmas[dmanr].info, + sparc_ebus_dmas[dmanr].addr, + sparc_ebus_dmas[dmanr].count)) + BUG(); +} + +static inline void disable_dma(unsigned int dmanr) +{ + ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 0); +} + +static inline void clear_dma_ff(unsigned int dmanr) +{ + /* nothing */ +} + +static inline void set_dma_mode(unsigned int dmanr, char mode) +{ + ebus_dma_prepare(&sparc_ebus_dmas[dmanr].info, (mode != DMA_MODE_WRITE)); +} + +static inline void set_dma_addr(unsigned int dmanr, unsigned int addr) +{ + sparc_ebus_dmas[dmanr].addr = addr; +} + +static inline void set_dma_count(unsigned int dmanr, unsigned int count) +{ + sparc_ebus_dmas[dmanr].count = count; +} + +static inline unsigned int get_dma_residue(unsigned int dmanr) +{ + return ebus_dma_residue(&sparc_ebus_dmas[dmanr].info); +} + +static int __devinit ecpp_probe(struct of_device *op, const struct of_device_id *match) +{ + unsigned long base = op->resource[0].start; + unsigned long config = op->resource[1].start; + unsigned long d_base = op->resource[2].start; + unsigned long d_len; + struct device_node *parent; + struct parport *p; + int slot, err; + + parent = op->node->parent; + if (!strcmp(parent->name, "dma")) { + p = parport_pc_probe_port(base, base + 0x400, + op->irqs[0], PARPORT_DMA_NOFIFO, + op->dev.parent->parent); + if (!p) + return -ENOMEM; + dev_set_drvdata(&op->dev, p); + return 0; + } + + for (slot = 0; slot < PARPORT_PC_MAX_PORTS; slot++) { + if (!test_and_set_bit(slot, dma_slot_map)) + break; + } + err = -ENODEV; + if (slot >= PARPORT_PC_MAX_PORTS) + goto out_err; + + spin_lock_init(&sparc_ebus_dmas[slot].info.lock); + + d_len = (op->resource[2].end - d_base) + 1UL; + sparc_ebus_dmas[slot].info.regs = + of_ioremap(&op->resource[2], 0, d_len, "ECPP DMA"); + + if (!sparc_ebus_dmas[slot].info.regs) + goto out_clear_map; + + sparc_ebus_dmas[slot].info.flags = 0; + sparc_ebus_dmas[slot].info.callback = NULL; + sparc_ebus_dmas[slot].info.client_cookie = NULL; + sparc_ebus_dmas[slot].info.irq = 0xdeadbeef; + strcpy(sparc_ebus_dmas[slot].info.name, "parport"); + if (ebus_dma_register(&sparc_ebus_dmas[slot].info)) + goto out_unmap_regs; + + ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 1); + + /* Configure IRQ to Push Pull, Level Low */ + /* Enable ECP, set bit 2 of the CTR first */ + outb(0x04, base + 0x02); + ns87303_modify(config, PCR, + PCR_EPP_ENABLE | + PCR_IRQ_ODRAIN, + PCR_ECP_ENABLE | + PCR_ECP_CLK_ENA | + PCR_IRQ_POLAR); + + /* CTR bit 5 controls direction of port */ + ns87303_modify(config, PTR, + 0, PTR_LPT_REG_DIR); + + p = parport_pc_probe_port(base, base + 0x400, + op->irqs[0], + slot, + op->dev.parent); + err = -ENOMEM; + if (!p) + goto out_disable_irq; + + dev_set_drvdata(&op->dev, p); + + return 0; + +out_disable_irq: + ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 0); + ebus_dma_unregister(&sparc_ebus_dmas[slot].info); + +out_unmap_regs: + of_iounmap(&op->resource[2], sparc_ebus_dmas[slot].info.regs, d_len); + +out_clear_map: + clear_bit(slot, dma_slot_map); + +out_err: + return err; +} + +static int __devexit ecpp_remove(struct of_device *op) +{ + struct parport *p = dev_get_drvdata(&op->dev); + int slot = p->dma; + + parport_pc_unregister_port(p); + + if (slot != PARPORT_DMA_NOFIFO) { + unsigned long d_base = op->resource[2].start; + unsigned long d_len; + + d_len = (op->resource[2].end - d_base) + 1UL; + + ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 0); + ebus_dma_unregister(&sparc_ebus_dmas[slot].info); + of_iounmap(&op->resource[2], + sparc_ebus_dmas[slot].info.regs, + d_len); + clear_bit(slot, dma_slot_map); + } + + return 0; +} + +static struct of_device_id ecpp_match[] = { + { + .name = "ecpp", + }, + { + .name = "parallel", + .compatible = "ecpp", + }, + { + .name = "parallel", + .compatible = "ns87317-ecpp", + }, + {}, +}; + +static struct of_platform_driver ecpp_driver = { + .name = "ecpp", + .match_table = ecpp_match, + .probe = ecpp_probe, + .remove = __devexit_p(ecpp_remove), +}; + +static int parport_pc_find_nonpci_ports(int autoirq, int autodma) +{ + of_register_driver(&ecpp_driver, &of_bus_type); + + return 0; +} + +#endif /* !(_ASM_SPARC64_PARPORT_H */ diff --git a/include/asm-sparc/pil.h b/include/asm-sparc/pil.h new file mode 100644 index 000000000000..eaac842d88c3 --- /dev/null +++ b/include/asm-sparc/pil.h @@ -0,0 +1,21 @@ +#ifndef _SPARC64_PIL_H +#define _SPARC64_PIL_H + +/* To avoid some locking problems, we hard allocate certain PILs + * for SMP cross call messages that must do a etrap/rtrap. + * + * A local_irq_disable() does not block the cross call delivery, so + * when SMP locking is an issue we reschedule the event into a PIL + * interrupt which is blocked by local_irq_disable(). + * + * In fact any XCALL which has to etrap/rtrap has a problem because + * it is difficult to prevent rtrap from running BH's, and that would + * need to be done if the XCALL arrived while %pil==15. + */ +#define PIL_SMP_CALL_FUNC 1 +#define PIL_SMP_RECEIVE_SIGNAL 2 +#define PIL_SMP_CAPTURE 3 +#define PIL_SMP_CTX_NEW_VERSION 4 +#define PIL_DEVICE_IRQ 5 + +#endif /* !(_SPARC64_PIL_H) */ diff --git a/include/asm-sparc/reboot.h b/include/asm-sparc/reboot.h new file mode 100644 index 000000000000..3f3f43f5be5e --- /dev/null +++ b/include/asm-sparc/reboot.h @@ -0,0 +1,6 @@ +#ifndef _SPARC64_REBOOT_H +#define _SPARC64_REBOOT_H + +extern void machine_alt_power_off(void); + +#endif /* _SPARC64_REBOOT_H */ diff --git a/include/asm-sparc/rwsem-const.h b/include/asm-sparc/rwsem-const.h new file mode 100644 index 000000000000..a303c9d64d84 --- /dev/null +++ b/include/asm-sparc/rwsem-const.h @@ -0,0 +1,12 @@ +/* rwsem-const.h: RW semaphore counter constants. */ +#ifndef _SPARC64_RWSEM_CONST_H +#define _SPARC64_RWSEM_CONST_H + +#define RWSEM_UNLOCKED_VALUE 0x00000000 +#define RWSEM_ACTIVE_BIAS 0x00000001 +#define RWSEM_ACTIVE_MASK 0x0000ffff +#define RWSEM_WAITING_BIAS 0xffff0000 +#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS +#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) + +#endif /* _SPARC64_RWSEM_CONST_H */ diff --git a/include/asm-sparc/rwsem.h b/include/asm-sparc/rwsem.h new file mode 100644 index 000000000000..1dc129ac2feb --- /dev/null +++ b/include/asm-sparc/rwsem.h @@ -0,0 +1,84 @@ +/* + * rwsem.h: R/W semaphores implemented using CAS + * + * Written by David S. Miller (davem@redhat.com), 2001. + * Derived from asm-i386/rwsem.h + */ +#ifndef _SPARC64_RWSEM_H +#define _SPARC64_RWSEM_H + +#ifndef _LINUX_RWSEM_H +#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead" +#endif + +#ifdef __KERNEL__ + +#include +#include +#include + +struct rwsem_waiter; + +struct rw_semaphore { + signed int count; + spinlock_t wait_lock; + struct list_head wait_list; +#ifdef CONFIG_DEBUG_LOCK_ALLOC + struct lockdep_map dep_map; +#endif +}; + +#ifdef CONFIG_DEBUG_LOCK_ALLOC +# define __RWSEM_DEP_MAP_INIT(lockname) , .dep_map = { .name = #lockname } +#else +# define __RWSEM_DEP_MAP_INIT(lockname) +#endif + +#define __RWSEM_INITIALIZER(name) \ +{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) \ + __RWSEM_DEP_MAP_INIT(name) } + +#define DECLARE_RWSEM(name) \ + struct rw_semaphore name = __RWSEM_INITIALIZER(name) + +extern void __init_rwsem(struct rw_semaphore *sem, const char *name, + struct lock_class_key *key); + +#define init_rwsem(sem) \ +do { \ + static struct lock_class_key __key; \ + \ + __init_rwsem((sem), #sem, &__key); \ +} while (0) + +extern void __down_read(struct rw_semaphore *sem); +extern int __down_read_trylock(struct rw_semaphore *sem); +extern void __down_write(struct rw_semaphore *sem); +extern int __down_write_trylock(struct rw_semaphore *sem); +extern void __up_read(struct rw_semaphore *sem); +extern void __up_write(struct rw_semaphore *sem); +extern void __downgrade_write(struct rw_semaphore *sem); + +static inline void __down_write_nested(struct rw_semaphore *sem, int subclass) +{ + __down_write(sem); +} + +static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem) +{ + return atomic_add_return(delta, (atomic_t *)(&sem->count)); +} + +static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem) +{ + atomic_add(delta, (atomic_t *)(&sem->count)); +} + +static inline int rwsem_is_locked(struct rw_semaphore *sem) +{ + return (sem->count != 0); +} + +#endif /* __KERNEL__ */ + +#endif /* _SPARC64_RWSEM_H */ diff --git a/include/asm-sparc/scratchpad.h b/include/asm-sparc/scratchpad.h new file mode 100644 index 000000000000..5e8b01fb3343 --- /dev/null +++ b/include/asm-sparc/scratchpad.h @@ -0,0 +1,14 @@ +#ifndef _SPARC64_SCRATCHPAD_H +#define _SPARC64_SCRATCHPAD_H + +/* Sun4v scratchpad registers, accessed via ASI_SCRATCHPAD. */ + +#define SCRATCHPAD_MMU_MISS 0x00 /* Shared with OBP - set by OBP */ +#define SCRATCHPAD_CPUID 0x08 /* Shared with OBP - set by hypervisor */ +#define SCRATCHPAD_UTSBREG1 0x10 +#define SCRATCHPAD_UTSBREG2 0x18 + /* 0x20 and 0x28, hypervisor only... */ +#define SCRATCHPAD_UNUSED1 0x30 +#define SCRATCHPAD_UNUSED2 0x38 /* Reserved for OBP */ + +#endif /* !(_SPARC64_SCRATCHPAD_H) */ diff --git a/include/asm-sparc/seccomp.h b/include/asm-sparc/seccomp.h new file mode 100644 index 000000000000..7fcd9968192b --- /dev/null +++ b/include/asm-sparc/seccomp.h @@ -0,0 +1,21 @@ +#ifndef _ASM_SECCOMP_H + +#include /* already defines TIF_32BIT */ + +#ifndef TIF_32BIT +#error "unexpected TIF_32BIT on sparc64" +#endif + +#include + +#define __NR_seccomp_read __NR_read +#define __NR_seccomp_write __NR_write +#define __NR_seccomp_exit __NR_exit +#define __NR_seccomp_sigreturn __NR_rt_sigreturn + +#define __NR_seccomp_read_32 __NR_read +#define __NR_seccomp_write_32 __NR_write +#define __NR_seccomp_exit_32 __NR_exit +#define __NR_seccomp_sigreturn_32 __NR_sigreturn + +#endif /* _ASM_SECCOMP_H */ diff --git a/include/asm-sparc/sfafsr.h b/include/asm-sparc/sfafsr.h new file mode 100644 index 000000000000..e96137b04a4f --- /dev/null +++ b/include/asm-sparc/sfafsr.h @@ -0,0 +1,82 @@ +#ifndef _SPARC64_SFAFSR_H +#define _SPARC64_SFAFSR_H + +#include + +/* Spitfire Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */ + +#define SFAFSR_ME (_AC(1,UL) << SFAFSR_ME_SHIFT) +#define SFAFSR_ME_SHIFT 32 +#define SFAFSR_PRIV (_AC(1,UL) << SFAFSR_PRIV_SHIFT) +#define SFAFSR_PRIV_SHIFT 31 +#define SFAFSR_ISAP (_AC(1,UL) << SFAFSR_ISAP_SHIFT) +#define SFAFSR_ISAP_SHIFT 30 +#define SFAFSR_ETP (_AC(1,UL) << SFAFSR_ETP_SHIFT) +#define SFAFSR_ETP_SHIFT 29 +#define SFAFSR_IVUE (_AC(1,UL) << SFAFSR_IVUE_SHIFT) +#define SFAFSR_IVUE_SHIFT 28 +#define SFAFSR_TO (_AC(1,UL) << SFAFSR_TO_SHIFT) +#define SFAFSR_TO_SHIFT 27 +#define SFAFSR_BERR (_AC(1,UL) << SFAFSR_BERR_SHIFT) +#define SFAFSR_BERR_SHIFT 26 +#define SFAFSR_LDP (_AC(1,UL) << SFAFSR_LDP_SHIFT) +#define SFAFSR_LDP_SHIFT 25 +#define SFAFSR_CP (_AC(1,UL) << SFAFSR_CP_SHIFT) +#define SFAFSR_CP_SHIFT 24 +#define SFAFSR_WP (_AC(1,UL) << SFAFSR_WP_SHIFT) +#define SFAFSR_WP_SHIFT 23 +#define SFAFSR_EDP (_AC(1,UL) << SFAFSR_EDP_SHIFT) +#define SFAFSR_EDP_SHIFT 22 +#define SFAFSR_UE (_AC(1,UL) << SFAFSR_UE_SHIFT) +#define SFAFSR_UE_SHIFT 21 +#define SFAFSR_CE (_AC(1,UL) << SFAFSR_CE_SHIFT) +#define SFAFSR_CE_SHIFT 20 +#define SFAFSR_ETS (_AC(0xf,UL) << SFAFSR_ETS_SHIFT) +#define SFAFSR_ETS_SHIFT 16 +#define SFAFSR_PSYND (_AC(0xffff,UL) << SFAFSR_PSYND_SHIFT) +#define SFAFSR_PSYND_SHIFT 0 + +/* UDB Error Register, ASI=0x7f VA<63:0>=0x0(High),0x18(Low) for read + * ASI=0x77 VA<63:0>=0x0(High),0x18(Low) for write + */ + +#define UDBE_UE (_AC(1,UL) << 9) +#define UDBE_CE (_AC(1,UL) << 8) +#define UDBE_E_SYNDR (_AC(0xff,UL) << 0) + +/* The trap handlers for asynchronous errors encode the AFSR and + * other pieces of information into a 64-bit argument for C code + * encoded as follows: + * + * ----------------------------------------------- + * | UDB_H | UDB_L | TL>1 | TT | AFSR | + * ----------------------------------------------- + * 63 54 53 44 42 41 33 32 0 + * + * The AFAR is passed in unchanged. + */ +#define SFSTAT_UDBH_MASK (_AC(0x3ff,UL) << SFSTAT_UDBH_SHIFT) +#define SFSTAT_UDBH_SHIFT 54 +#define SFSTAT_UDBL_MASK (_AC(0x3ff,UL) << SFSTAT_UDBH_SHIFT) +#define SFSTAT_UDBL_SHIFT 44 +#define SFSTAT_TL_GT_ONE (_AC(1,UL) << SFSTAT_TL_GT_ONE_SHIFT) +#define SFSTAT_TL_GT_ONE_SHIFT 42 +#define SFSTAT_TRAP_TYPE (_AC(0x1FF,UL) << SFSTAT_TRAP_TYPE_SHIFT) +#define SFSTAT_TRAP_TYPE_SHIFT 33 +#define SFSTAT_AFSR_MASK (_AC(0x1ffffffff,UL) << SFSTAT_AFSR_SHIFT) +#define SFSTAT_AFSR_SHIFT 0 + +/* ESTATE Error Enable Register, ASI=0x4b VA<63:0>=0x0 */ +#define ESTATE_ERR_CE 0x1 /* Correctable errors */ +#define ESTATE_ERR_NCE 0x2 /* TO, BERR, LDP, ETP, EDP, WP, UE, IVUE */ +#define ESTATE_ERR_ISAP 0x4 /* System address parity error */ +#define ESTATE_ERR_ALL (ESTATE_ERR_CE | \ + ESTATE_ERR_NCE | \ + ESTATE_ERR_ISAP) + +/* The various trap types that report using the above state. */ +#define TRAP_TYPE_IAE 0x09 /* Instruction Access Error */ +#define TRAP_TYPE_DAE 0x32 /* Data Access Error */ +#define TRAP_TYPE_CEE 0x63 /* Correctable ECC Error */ + +#endif /* _SPARC64_SFAFSR_H */ diff --git a/include/asm-sparc/sparsemem.h b/include/asm-sparc/sparsemem.h new file mode 100644 index 000000000000..b99d4e4b6d28 --- /dev/null +++ b/include/asm-sparc/sparsemem.h @@ -0,0 +1,12 @@ +#ifndef _SPARC64_SPARSEMEM_H +#define _SPARC64_SPARSEMEM_H + +#ifdef __KERNEL__ + +#define SECTION_SIZE_BITS 30 +#define MAX_PHYSADDR_BITS 42 +#define MAX_PHYSMEM_BITS 42 + +#endif /* !(__KERNEL__) */ + +#endif /* !(_SPARC64_SPARSEMEM_H) */ diff --git a/include/asm-sparc/spitfire.h b/include/asm-sparc/spitfire.h new file mode 100644 index 000000000000..985ea7e31992 --- /dev/null +++ b/include/asm-sparc/spitfire.h @@ -0,0 +1,342 @@ +/* spitfire.h: SpitFire/BlackBird/Cheetah inline MMU operations. + * + * Copyright (C) 1996 David S. Miller (davem@davemloft.net) + */ + +#ifndef _SPARC64_SPITFIRE_H +#define _SPARC64_SPITFIRE_H + +#include + +/* The following register addresses are accessible via ASI_DMMU + * and ASI_IMMU, that is there is a distinct and unique copy of + * each these registers for each TLB. + */ +#define TSB_TAG_TARGET 0x0000000000000000 /* All chips */ +#define TLB_SFSR 0x0000000000000018 /* All chips */ +#define TSB_REG 0x0000000000000028 /* All chips */ +#define TLB_TAG_ACCESS 0x0000000000000030 /* All chips */ +#define VIRT_WATCHPOINT 0x0000000000000038 /* All chips */ +#define PHYS_WATCHPOINT 0x0000000000000040 /* All chips */ +#define TSB_EXTENSION_P 0x0000000000000048 /* Ultra-III and later */ +#define TSB_EXTENSION_S 0x0000000000000050 /* Ultra-III and later, D-TLB only */ +#define TSB_EXTENSION_N 0x0000000000000058 /* Ultra-III and later */ +#define TLB_TAG_ACCESS_EXT 0x0000000000000060 /* Ultra-III+ and later */ + +/* These registers only exist as one entity, and are accessed + * via ASI_DMMU only. + */ +#define PRIMARY_CONTEXT 0x0000000000000008 +#define SECONDARY_CONTEXT 0x0000000000000010 +#define DMMU_SFAR 0x0000000000000020 +#define VIRT_WATCHPOINT 0x0000000000000038 +#define PHYS_WATCHPOINT 0x0000000000000040 + +#define SPITFIRE_HIGHEST_LOCKED_TLBENT (64 - 1) +#define CHEETAH_HIGHEST_LOCKED_TLBENT (16 - 1) + +#define L1DCACHE_SIZE 0x4000 + +#define SUN4V_CHIP_INVALID 0x00 +#define SUN4V_CHIP_NIAGARA1 0x01 +#define SUN4V_CHIP_NIAGARA2 0x02 +#define SUN4V_CHIP_UNKNOWN 0xff + +#ifndef __ASSEMBLY__ + +enum ultra_tlb_layout { + spitfire = 0, + cheetah = 1, + cheetah_plus = 2, + hypervisor = 3, +}; + +extern enum ultra_tlb_layout tlb_type; + +extern int sun4v_chip_type; + +extern int cheetah_pcache_forced_on; +extern void cheetah_enable_pcache(void); + +#define sparc64_highest_locked_tlbent() \ + (tlb_type == spitfire ? \ + SPITFIRE_HIGHEST_LOCKED_TLBENT : \ + CHEETAH_HIGHEST_LOCKED_TLBENT) + +extern int num_kernel_image_mappings; + +/* The data cache is write through, so this just invalidates the + * specified line. + */ +static inline void spitfire_put_dcache_tag(unsigned long addr, unsigned long tag) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (tag), "r" (addr), "i" (ASI_DCACHE_TAG)); +} + +/* The instruction cache lines are flushed with this, but note that + * this does not flush the pipeline. It is possible for a line to + * get flushed but stale instructions to still be in the pipeline, + * a flush instruction (to any address) is sufficient to handle + * this issue after the line is invalidated. + */ +static inline void spitfire_put_icache_tag(unsigned long addr, unsigned long tag) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (tag), "r" (addr), "i" (ASI_IC_TAG)); +} + +static inline unsigned long spitfire_get_dtlb_data(int entry) +{ + unsigned long data; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (data) + : "r" (entry << 3), "i" (ASI_DTLB_DATA_ACCESS)); + + /* Clear TTE diag bits. */ + data &= ~0x0003fe0000000000UL; + + return data; +} + +static inline unsigned long spitfire_get_dtlb_tag(int entry) +{ + unsigned long tag; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (tag) + : "r" (entry << 3), "i" (ASI_DTLB_TAG_READ)); + return tag; +} + +static inline void spitfire_put_dtlb_data(int entry, unsigned long data) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (data), "r" (entry << 3), + "i" (ASI_DTLB_DATA_ACCESS)); +} + +static inline unsigned long spitfire_get_itlb_data(int entry) +{ + unsigned long data; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (data) + : "r" (entry << 3), "i" (ASI_ITLB_DATA_ACCESS)); + + /* Clear TTE diag bits. */ + data &= ~0x0003fe0000000000UL; + + return data; +} + +static inline unsigned long spitfire_get_itlb_tag(int entry) +{ + unsigned long tag; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (tag) + : "r" (entry << 3), "i" (ASI_ITLB_TAG_READ)); + return tag; +} + +static inline void spitfire_put_itlb_data(int entry, unsigned long data) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (data), "r" (entry << 3), + "i" (ASI_ITLB_DATA_ACCESS)); +} + +static inline void spitfire_flush_dtlb_nucleus_page(unsigned long page) +{ + __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (page | 0x20), "i" (ASI_DMMU_DEMAP)); +} + +static inline void spitfire_flush_itlb_nucleus_page(unsigned long page) +{ + __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (page | 0x20), "i" (ASI_IMMU_DEMAP)); +} + +/* Cheetah has "all non-locked" tlb flushes. */ +static inline void cheetah_flush_dtlb_all(void) +{ + __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (0x80), "i" (ASI_DMMU_DEMAP)); +} + +static inline void cheetah_flush_itlb_all(void) +{ + __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (0x80), "i" (ASI_IMMU_DEMAP)); +} + +/* Cheetah has a 4-tlb layout so direct access is a bit different. + * The first two TLBs are fully assosciative, hold 16 entries, and are + * used only for locked and >8K sized translations. One exists for + * data accesses and one for instruction accesses. + * + * The third TLB is for data accesses to 8K non-locked translations, is + * 2 way assosciative, and holds 512 entries. The fourth TLB is for + * instruction accesses to 8K non-locked translations, is 2 way + * assosciative, and holds 128 entries. + * + * Cheetah has some bug where bogus data can be returned from + * ASI_{D,I}TLB_DATA_ACCESS loads, doing the load twice fixes + * the problem for me. -DaveM + */ +static inline unsigned long cheetah_get_ldtlb_data(int entry) +{ + unsigned long data; + + __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" + "ldxa [%1] %2, %0" + : "=r" (data) + : "r" ((0 << 16) | (entry << 3)), + "i" (ASI_DTLB_DATA_ACCESS)); + + return data; +} + +static inline unsigned long cheetah_get_litlb_data(int entry) +{ + unsigned long data; + + __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" + "ldxa [%1] %2, %0" + : "=r" (data) + : "r" ((0 << 16) | (entry << 3)), + "i" (ASI_ITLB_DATA_ACCESS)); + + return data; +} + +static inline unsigned long cheetah_get_ldtlb_tag(int entry) +{ + unsigned long tag; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (tag) + : "r" ((0 << 16) | (entry << 3)), + "i" (ASI_DTLB_TAG_READ)); + + return tag; +} + +static inline unsigned long cheetah_get_litlb_tag(int entry) +{ + unsigned long tag; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (tag) + : "r" ((0 << 16) | (entry << 3)), + "i" (ASI_ITLB_TAG_READ)); + + return tag; +} + +static inline void cheetah_put_ldtlb_data(int entry, unsigned long data) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (data), + "r" ((0 << 16) | (entry << 3)), + "i" (ASI_DTLB_DATA_ACCESS)); +} + +static inline void cheetah_put_litlb_data(int entry, unsigned long data) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (data), + "r" ((0 << 16) | (entry << 3)), + "i" (ASI_ITLB_DATA_ACCESS)); +} + +static inline unsigned long cheetah_get_dtlb_data(int entry, int tlb) +{ + unsigned long data; + + __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" + "ldxa [%1] %2, %0" + : "=r" (data) + : "r" ((tlb << 16) | (entry << 3)), "i" (ASI_DTLB_DATA_ACCESS)); + + return data; +} + +static inline unsigned long cheetah_get_dtlb_tag(int entry, int tlb) +{ + unsigned long tag; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (tag) + : "r" ((tlb << 16) | (entry << 3)), "i" (ASI_DTLB_TAG_READ)); + return tag; +} + +static inline void cheetah_put_dtlb_data(int entry, unsigned long data, int tlb) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (data), + "r" ((tlb << 16) | (entry << 3)), + "i" (ASI_DTLB_DATA_ACCESS)); +} + +static inline unsigned long cheetah_get_itlb_data(int entry) +{ + unsigned long data; + + __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" + "ldxa [%1] %2, %0" + : "=r" (data) + : "r" ((2 << 16) | (entry << 3)), + "i" (ASI_ITLB_DATA_ACCESS)); + + return data; +} + +static inline unsigned long cheetah_get_itlb_tag(int entry) +{ + unsigned long tag; + + __asm__ __volatile__("ldxa [%1] %2, %0" + : "=r" (tag) + : "r" ((2 << 16) | (entry << 3)), "i" (ASI_ITLB_TAG_READ)); + return tag; +} + +static inline void cheetah_put_itlb_data(int entry, unsigned long data) +{ + __asm__ __volatile__("stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* No outputs */ + : "r" (data), "r" ((2 << 16) | (entry << 3)), + "i" (ASI_ITLB_DATA_ACCESS)); +} + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(_SPARC64_SPITFIRE_H) */ diff --git a/include/asm-sparc/sstate.h b/include/asm-sparc/sstate.h new file mode 100644 index 000000000000..a7c35dbcb281 --- /dev/null +++ b/include/asm-sparc/sstate.h @@ -0,0 +1,13 @@ +#ifndef _SPARC64_SSTATE_H +#define _SPARC64_SSTATE_H + +extern void sstate_booting(void); +extern void sstate_running(void); +extern void sstate_halt(void); +extern void sstate_poweroff(void); +extern void sstate_panic(void); +extern void sstate_reboot(void); + +extern void sun4v_sstate_init(void); + +#endif /* _SPARC64_SSTATE_H */ diff --git a/include/asm-sparc/stacktrace.h b/include/asm-sparc/stacktrace.h new file mode 100644 index 000000000000..6cee39adf6d6 --- /dev/null +++ b/include/asm-sparc/stacktrace.h @@ -0,0 +1,6 @@ +#ifndef _SPARC64_STACKTRACE_H +#define _SPARC64_STACKTRACE_H + +extern void stack_trace_flush(void); + +#endif /* _SPARC64_STACKTRACE_H */ diff --git a/include/asm-sparc/starfire.h b/include/asm-sparc/starfire.h new file mode 100644 index 000000000000..07bafd31e33c --- /dev/null +++ b/include/asm-sparc/starfire.h @@ -0,0 +1,21 @@ +/* + * starfire.h: Group all starfire specific code together. + * + * Copyright (C) 2000 Anton Blanchard (anton@samba.org) + */ + +#ifndef _SPARC64_STARFIRE_H +#define _SPARC64_STARFIRE_H + +#ifndef __ASSEMBLY__ + +extern int this_is_starfire; + +extern void check_if_starfire(void); +extern void starfire_cpu_setup(void); +extern int starfire_hard_smp_processor_id(void); +extern void starfire_hookup(int); +extern unsigned int starfire_translate(unsigned long imap, unsigned int upaid); + +#endif +#endif diff --git a/include/asm-sparc/syscalls.h b/include/asm-sparc/syscalls.h new file mode 100644 index 000000000000..45a43f637a14 --- /dev/null +++ b/include/asm-sparc/syscalls.h @@ -0,0 +1,13 @@ +#ifndef _SPARC64_SYSCALLS_H +#define _SPARC64_SYSCALLS_H + +struct pt_regs; + +extern asmlinkage long sparc_do_fork(unsigned long clone_flags, + unsigned long stack_start, + struct pt_regs *regs, + unsigned long stack_size); + +extern asmlinkage int sparc_execve(struct pt_regs *regs); + +#endif /* _SPARC64_SYSCALLS_H */ diff --git a/include/asm-sparc/tsb.h b/include/asm-sparc/tsb.h new file mode 100644 index 000000000000..76e4299dd9bc --- /dev/null +++ b/include/asm-sparc/tsb.h @@ -0,0 +1,283 @@ +#ifndef _SPARC64_TSB_H +#define _SPARC64_TSB_H + +/* The sparc64 TSB is similar to the powerpc hashtables. It's a + * power-of-2 sized table of TAG/PTE pairs. The cpu precomputes + * pointers into this table for 8K and 64K page sizes, and also a + * comparison TAG based upon the virtual address and context which + * faults. + * + * TLB miss trap handler software does the actual lookup via something + * of the form: + * + * ldxa [%g0] ASI_{D,I}MMU_TSB_8KB_PTR, %g1 + * ldxa [%g0] ASI_{D,I}MMU, %g6 + * sllx %g6, 22, %g6 + * srlx %g6, 22, %g6 + * ldda [%g1] ASI_NUCLEUS_QUAD_LDD, %g4 + * cmp %g4, %g6 + * bne,pn %xcc, tsb_miss_{d,i}tlb + * mov FAULT_CODE_{D,I}TLB, %g3 + * stxa %g5, [%g0] ASI_{D,I}TLB_DATA_IN + * retry + * + * + * Each 16-byte slot of the TSB is the 8-byte tag and then the 8-byte + * PTE. The TAG is of the same layout as the TLB TAG TARGET mmu + * register which is: + * + * ------------------------------------------------- + * | - | CONTEXT | - | VADDR bits 63:22 | + * ------------------------------------------------- + * 63 61 60 48 47 42 41 0 + * + * But actually, since we use per-mm TSB's, we zero out the CONTEXT + * field. + * + * Like the powerpc hashtables we need to use locking in order to + * synchronize while we update the entries. PTE updates need locking + * as well. + * + * We need to carefully choose a lock bits for the TSB entry. We + * choose to use bit 47 in the tag. Also, since we never map anything + * at page zero in context zero, we use zero as an invalid tag entry. + * When the lock bit is set, this forces a tag comparison failure. + */ + +#define TSB_TAG_LOCK_BIT 47 +#define TSB_TAG_LOCK_HIGH (1 << (TSB_TAG_LOCK_BIT - 32)) + +#define TSB_TAG_INVALID_BIT 46 +#define TSB_TAG_INVALID_HIGH (1 << (TSB_TAG_INVALID_BIT - 32)) + +#define TSB_MEMBAR membar #StoreStore + +/* Some cpus support physical address quad loads. We want to use + * those if possible so we don't need to hard-lock the TSB mapping + * into the TLB. We encode some instruction patching in order to + * support this. + * + * The kernel TSB is locked into the TLB by virtue of being in the + * kernel image, so we don't play these games for swapper_tsb access. + */ +#ifndef __ASSEMBLY__ +struct tsb_ldquad_phys_patch_entry { + unsigned int addr; + unsigned int sun4u_insn; + unsigned int sun4v_insn; +}; +extern struct tsb_ldquad_phys_patch_entry __tsb_ldquad_phys_patch, + __tsb_ldquad_phys_patch_end; + +struct tsb_phys_patch_entry { + unsigned int addr; + unsigned int insn; +}; +extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end; +#endif +#define TSB_LOAD_QUAD(TSB, REG) \ +661: ldda [TSB] ASI_NUCLEUS_QUAD_LDD, REG; \ + .section .tsb_ldquad_phys_patch, "ax"; \ + .word 661b; \ + ldda [TSB] ASI_QUAD_LDD_PHYS, REG; \ + ldda [TSB] ASI_QUAD_LDD_PHYS_4V, REG; \ + .previous + +#define TSB_LOAD_TAG_HIGH(TSB, REG) \ +661: lduwa [TSB] ASI_N, REG; \ + .section .tsb_phys_patch, "ax"; \ + .word 661b; \ + lduwa [TSB] ASI_PHYS_USE_EC, REG; \ + .previous + +#define TSB_LOAD_TAG(TSB, REG) \ +661: ldxa [TSB] ASI_N, REG; \ + .section .tsb_phys_patch, "ax"; \ + .word 661b; \ + ldxa [TSB] ASI_PHYS_USE_EC, REG; \ + .previous + +#define TSB_CAS_TAG_HIGH(TSB, REG1, REG2) \ +661: casa [TSB] ASI_N, REG1, REG2; \ + .section .tsb_phys_patch, "ax"; \ + .word 661b; \ + casa [TSB] ASI_PHYS_USE_EC, REG1, REG2; \ + .previous + +#define TSB_CAS_TAG(TSB, REG1, REG2) \ +661: casxa [TSB] ASI_N, REG1, REG2; \ + .section .tsb_phys_patch, "ax"; \ + .word 661b; \ + casxa [TSB] ASI_PHYS_USE_EC, REG1, REG2; \ + .previous + +#define TSB_STORE(ADDR, VAL) \ +661: stxa VAL, [ADDR] ASI_N; \ + .section .tsb_phys_patch, "ax"; \ + .word 661b; \ + stxa VAL, [ADDR] ASI_PHYS_USE_EC; \ + .previous + +#define TSB_LOCK_TAG(TSB, REG1, REG2) \ +99: TSB_LOAD_TAG_HIGH(TSB, REG1); \ + sethi %hi(TSB_TAG_LOCK_HIGH), REG2;\ + andcc REG1, REG2, %g0; \ + bne,pn %icc, 99b; \ + nop; \ + TSB_CAS_TAG_HIGH(TSB, REG1, REG2); \ + cmp REG1, REG2; \ + bne,pn %icc, 99b; \ + nop; \ + TSB_MEMBAR + +#define TSB_WRITE(TSB, TTE, TAG) \ + add TSB, 0x8, TSB; \ + TSB_STORE(TSB, TTE); \ + sub TSB, 0x8, TSB; \ + TSB_MEMBAR; \ + TSB_STORE(TSB, TAG); + +#define KTSB_LOAD_QUAD(TSB, REG) \ + ldda [TSB] ASI_NUCLEUS_QUAD_LDD, REG; + +#define KTSB_STORE(ADDR, VAL) \ + stxa VAL, [ADDR] ASI_N; + +#define KTSB_LOCK_TAG(TSB, REG1, REG2) \ +99: lduwa [TSB] ASI_N, REG1; \ + sethi %hi(TSB_TAG_LOCK_HIGH), REG2;\ + andcc REG1, REG2, %g0; \ + bne,pn %icc, 99b; \ + nop; \ + casa [TSB] ASI_N, REG1, REG2;\ + cmp REG1, REG2; \ + bne,pn %icc, 99b; \ + nop; \ + TSB_MEMBAR + +#define KTSB_WRITE(TSB, TTE, TAG) \ + add TSB, 0x8, TSB; \ + stxa TTE, [TSB] ASI_N; \ + sub TSB, 0x8, TSB; \ + TSB_MEMBAR; \ + stxa TAG, [TSB] ASI_N; + + /* Do a kernel page table walk. Leaves physical PTE pointer in + * REG1. Jumps to FAIL_LABEL on early page table walk termination. + * VADDR will not be clobbered, but REG2 will. + */ +#define KERN_PGTABLE_WALK(VADDR, REG1, REG2, FAIL_LABEL) \ + sethi %hi(swapper_pg_dir), REG1; \ + or REG1, %lo(swapper_pg_dir), REG1; \ + sllx VADDR, 64 - (PGDIR_SHIFT + PGDIR_BITS), REG2; \ + srlx REG2, 64 - PAGE_SHIFT, REG2; \ + andn REG2, 0x3, REG2; \ + lduw [REG1 + REG2], REG1; \ + brz,pn REG1, FAIL_LABEL; \ + sllx VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \ + srlx REG2, 64 - PAGE_SHIFT, REG2; \ + sllx REG1, 11, REG1; \ + andn REG2, 0x3, REG2; \ + lduwa [REG1 + REG2] ASI_PHYS_USE_EC, REG1; \ + brz,pn REG1, FAIL_LABEL; \ + sllx VADDR, 64 - PMD_SHIFT, REG2; \ + srlx REG2, 64 - PAGE_SHIFT, REG2; \ + sllx REG1, 11, REG1; \ + andn REG2, 0x7, REG2; \ + add REG1, REG2, REG1; + + /* Do a user page table walk in MMU globals. Leaves physical PTE + * pointer in REG1. Jumps to FAIL_LABEL on early page table walk + * termination. Physical base of page tables is in PHYS_PGD which + * will not be modified. + * + * VADDR will not be clobbered, but REG1 and REG2 will. + */ +#define USER_PGTABLE_WALK_TL1(VADDR, PHYS_PGD, REG1, REG2, FAIL_LABEL) \ + sllx VADDR, 64 - (PGDIR_SHIFT + PGDIR_BITS), REG2; \ + srlx REG2, 64 - PAGE_SHIFT, REG2; \ + andn REG2, 0x3, REG2; \ + lduwa [PHYS_PGD + REG2] ASI_PHYS_USE_EC, REG1; \ + brz,pn REG1, FAIL_LABEL; \ + sllx VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \ + srlx REG2, 64 - PAGE_SHIFT, REG2; \ + sllx REG1, 11, REG1; \ + andn REG2, 0x3, REG2; \ + lduwa [REG1 + REG2] ASI_PHYS_USE_EC, REG1; \ + brz,pn REG1, FAIL_LABEL; \ + sllx VADDR, 64 - PMD_SHIFT, REG2; \ + srlx REG2, 64 - PAGE_SHIFT, REG2; \ + sllx REG1, 11, REG1; \ + andn REG2, 0x7, REG2; \ + add REG1, REG2, REG1; + +/* Lookup a OBP mapping on VADDR in the prom_trans[] table at TL>0. + * If no entry is found, FAIL_LABEL will be branched to. On success + * the resulting PTE value will be left in REG1. VADDR is preserved + * by this routine. + */ +#define OBP_TRANS_LOOKUP(VADDR, REG1, REG2, REG3, FAIL_LABEL) \ + sethi %hi(prom_trans), REG1; \ + or REG1, %lo(prom_trans), REG1; \ +97: ldx [REG1 + 0x00], REG2; \ + brz,pn REG2, FAIL_LABEL; \ + nop; \ + ldx [REG1 + 0x08], REG3; \ + add REG2, REG3, REG3; \ + cmp REG2, VADDR; \ + bgu,pt %xcc, 98f; \ + cmp VADDR, REG3; \ + bgeu,pt %xcc, 98f; \ + ldx [REG1 + 0x10], REG3; \ + sub VADDR, REG2, REG2; \ + ba,pt %xcc, 99f; \ + add REG3, REG2, REG1; \ +98: ba,pt %xcc, 97b; \ + add REG1, (3 * 8), REG1; \ +99: + + /* We use a 32K TSB for the whole kernel, this allows to + * handle about 16MB of modules and vmalloc mappings without + * incurring many hash conflicts. + */ +#define KERNEL_TSB_SIZE_BYTES (32 * 1024) +#define KERNEL_TSB_NENTRIES \ + (KERNEL_TSB_SIZE_BYTES / 16) +#define KERNEL_TSB4M_NENTRIES 4096 + + /* Do a kernel TSB lookup at tl>0 on VADDR+TAG, branch to OK_LABEL + * on TSB hit. REG1, REG2, REG3, and REG4 are used as temporaries + * and the found TTE will be left in REG1. REG3 and REG4 must + * be an even/odd pair of registers. + * + * VADDR and TAG will be preserved and not clobbered by this macro. + */ +#define KERN_TSB_LOOKUP_TL1(VADDR, TAG, REG1, REG2, REG3, REG4, OK_LABEL) \ + sethi %hi(swapper_tsb), REG1; \ + or REG1, %lo(swapper_tsb), REG1; \ + srlx VADDR, PAGE_SHIFT, REG2; \ + and REG2, (KERNEL_TSB_NENTRIES - 1), REG2; \ + sllx REG2, 4, REG2; \ + add REG1, REG2, REG2; \ + KTSB_LOAD_QUAD(REG2, REG3); \ + cmp REG3, TAG; \ + be,a,pt %xcc, OK_LABEL; \ + mov REG4, REG1; + +#ifndef CONFIG_DEBUG_PAGEALLOC + /* This version uses a trick, the TAG is already (VADDR >> 22) so + * we can make use of that for the index computation. + */ +#define KERN_TSB4M_LOOKUP_TL1(TAG, REG1, REG2, REG3, REG4, OK_LABEL) \ + sethi %hi(swapper_4m_tsb), REG1; \ + or REG1, %lo(swapper_4m_tsb), REG1; \ + and TAG, (KERNEL_TSB4M_NENTRIES - 1), REG2; \ + sllx REG2, 4, REG2; \ + add REG1, REG2, REG2; \ + KTSB_LOAD_QUAD(REG2, REG3); \ + cmp REG3, TAG; \ + be,a,pt %xcc, OK_LABEL; \ + mov REG4, REG1; +#endif + +#endif /* !(_SPARC64_TSB_H) */ diff --git a/include/asm-sparc/ttable.h b/include/asm-sparc/ttable.h new file mode 100644 index 000000000000..5708ba2719fb --- /dev/null +++ b/include/asm-sparc/ttable.h @@ -0,0 +1,658 @@ +#ifndef _SPARC64_TTABLE_H +#define _SPARC64_TTABLE_H + +#include + +#ifdef __ASSEMBLY__ +#include +#endif + +#define BOOT_KERNEL b sparc64_boot; nop; nop; nop; nop; nop; nop; nop; + +/* We need a "cleaned" instruction... */ +#define CLEAN_WINDOW \ + rdpr %cleanwin, %l0; add %l0, 1, %l0; \ + wrpr %l0, 0x0, %cleanwin; \ + clr %o0; clr %o1; clr %o2; clr %o3; \ + clr %o4; clr %o5; clr %o6; clr %o7; \ + clr %l0; clr %l1; clr %l2; clr %l3; \ + clr %l4; clr %l5; clr %l6; clr %l7; \ + retry; \ + nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop; + +#define TRAP(routine) \ + sethi %hi(109f), %g7; \ + ba,pt %xcc, etrap; \ +109: or %g7, %lo(109b), %g7; \ + call routine; \ + add %sp, PTREGS_OFF, %o0; \ + ba,pt %xcc, rtrap; \ + nop; \ + nop; + +#define TRAP_7INSNS(routine) \ + sethi %hi(109f), %g7; \ + ba,pt %xcc, etrap; \ +109: or %g7, %lo(109b), %g7; \ + call routine; \ + add %sp, PTREGS_OFF, %o0; \ + ba,pt %xcc, rtrap; \ + nop; + +#define TRAP_SAVEFPU(routine) \ + sethi %hi(109f), %g7; \ + ba,pt %xcc, do_fptrap; \ +109: or %g7, %lo(109b), %g7; \ + call routine; \ + add %sp, PTREGS_OFF, %o0; \ + ba,pt %xcc, rtrap; \ + nop; \ + nop; + +#define TRAP_NOSAVE(routine) \ + ba,pt %xcc, routine; \ + nop; \ + nop; nop; nop; nop; nop; nop; + +#define TRAP_NOSAVE_7INSNS(routine) \ + ba,pt %xcc, routine; \ + nop; \ + nop; nop; nop; nop; nop; + +#define TRAPTL1(routine) \ + sethi %hi(109f), %g7; \ + ba,pt %xcc, etraptl1; \ +109: or %g7, %lo(109b), %g7; \ + call routine; \ + add %sp, PTREGS_OFF, %o0; \ + ba,pt %xcc, rtrap; \ + nop; \ + nop; + +#define TRAP_ARG(routine, arg) \ + sethi %hi(109f), %g7; \ + ba,pt %xcc, etrap; \ +109: or %g7, %lo(109b), %g7; \ + add %sp, PTREGS_OFF, %o0; \ + call routine; \ + mov arg, %o1; \ + ba,pt %xcc, rtrap; \ + nop; + +#define TRAPTL1_ARG(routine, arg) \ + sethi %hi(109f), %g7; \ + ba,pt %xcc, etraptl1; \ +109: or %g7, %lo(109b), %g7; \ + add %sp, PTREGS_OFF, %o0; \ + call routine; \ + mov arg, %o1; \ + ba,pt %xcc, rtrap; \ + nop; + +#define SYSCALL_TRAP(routine, systbl) \ + rdpr %pil, %g2; \ + mov TSTATE_SYSCALL, %g3; \ + sethi %hi(109f), %g7; \ + ba,pt %xcc, etrap_syscall; \ +109: or %g7, %lo(109b), %g7; \ + sethi %hi(systbl), %l7; \ + ba,pt %xcc, routine; \ + or %l7, %lo(systbl), %l7; + +#define TRAP_UTRAP(handler,lvl) \ + mov handler, %g3; \ + ba,pt %xcc, utrap_trap; \ + mov lvl, %g4; \ + nop; \ + nop; \ + nop; \ + nop; \ + nop; + +#ifdef CONFIG_COMPAT +#define LINUX_32BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall32, sys_call_table32) +#else +#define LINUX_32BIT_SYSCALL_TRAP BTRAP(0x110) +#endif +#define LINUX_64BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall, sys_call_table64) +#define GETCC_TRAP TRAP(getcc) +#define SETCC_TRAP TRAP(setcc) +#define BREAKPOINT_TRAP TRAP(breakpoint_trap) + +#ifdef CONFIG_TRACE_IRQFLAGS + +#define TRAP_IRQ(routine, level) \ + rdpr %pil, %g2; \ + wrpr %g0, 15, %pil; \ + sethi %hi(1f-4), %g7; \ + ba,pt %xcc, etrap_irq; \ + or %g7, %lo(1f-4), %g7; \ + nop; \ + nop; \ + nop; \ + .subsection 2; \ +1: call trace_hardirqs_off; \ + nop; \ + mov level, %o0; \ + call routine; \ + add %sp, PTREGS_OFF, %o1; \ + ba,a,pt %xcc, rtrap_irq; \ + .previous; + +#else + +#define TRAP_IRQ(routine, level) \ + rdpr %pil, %g2; \ + wrpr %g0, 15, %pil; \ + ba,pt %xcc, etrap_irq; \ + rd %pc, %g7; \ + mov level, %o0; \ + call routine; \ + add %sp, PTREGS_OFF, %o1; \ + ba,a,pt %xcc, rtrap_irq; + +#endif + +#define TRAP_IVEC TRAP_NOSAVE(do_ivec) + +#define BTRAP(lvl) TRAP_ARG(bad_trap, lvl) + +#define BTRAPTL1(lvl) TRAPTL1_ARG(bad_trap_tl1, lvl) + +#define FLUSH_WINDOW_TRAP \ + ba,pt %xcc, etrap; \ + rd %pc, %g7; \ + flushw; \ + ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1; \ + add %l1, 4, %l2; \ + stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]; \ + ba,pt %xcc, rtrap; \ + stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]; + +#ifdef CONFIG_KPROBES +#define KPROBES_TRAP(lvl) TRAP_IRQ(kprobe_trap, lvl) +#else +#define KPROBES_TRAP(lvl) TRAP_ARG(bad_trap, lvl) +#endif + +#ifdef CONFIG_KGDB +#define KGDB_TRAP(lvl) TRAP_IRQ(kgdb_trap, lvl) +#else +#define KGDB_TRAP(lvl) TRAP_ARG(bad_trap, lvl) +#endif + +#define SUN4V_ITSB_MISS \ + ldxa [%g0] ASI_SCRATCHPAD, %g2; \ + ldx [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4; \ + ldx [%g2 + HV_FAULT_I_CTX_OFFSET], %g5; \ + srlx %g4, 22, %g6; \ + ba,pt %xcc, sun4v_itsb_miss; \ + nop; \ + nop; \ + nop; + +#define SUN4V_DTSB_MISS \ + ldxa [%g0] ASI_SCRATCHPAD, %g2; \ + ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4; \ + ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5; \ + srlx %g4, 22, %g6; \ + ba,pt %xcc, sun4v_dtsb_miss; \ + nop; \ + nop; \ + nop; + +/* Before touching these macros, you owe it to yourself to go and + * see how arch/sparc64/kernel/winfixup.S works... -DaveM + * + * For the user cases we used to use the %asi register, but + * it turns out that the "wr xxx, %asi" costs ~5 cycles, so + * now we use immediate ASI loads and stores instead. Kudos + * to Greg Onufer for pointing out this performance anomaly. + * + * Further note that we cannot use the g2, g4, g5, and g7 alternate + * globals in the spill routines, check out the save instruction in + * arch/sparc64/kernel/etrap.S to see what I mean about g2, and + * g4/g5 are the globals which are preserved by etrap processing + * for the caller of it. The g7 register is the return pc for + * etrap. Finally, g6 is the current thread register so we cannot + * us it in the spill handlers either. Most of these rules do not + * apply to fill processing, only g6 is not usable. + */ + +/* Normal kernel spill */ +#define SPILL_0_NORMAL \ + stx %l0, [%sp + STACK_BIAS + 0x00]; \ + stx %l1, [%sp + STACK_BIAS + 0x08]; \ + stx %l2, [%sp + STACK_BIAS + 0x10]; \ + stx %l3, [%sp + STACK_BIAS + 0x18]; \ + stx %l4, [%sp + STACK_BIAS + 0x20]; \ + stx %l5, [%sp + STACK_BIAS + 0x28]; \ + stx %l6, [%sp + STACK_BIAS + 0x30]; \ + stx %l7, [%sp + STACK_BIAS + 0x38]; \ + stx %i0, [%sp + STACK_BIAS + 0x40]; \ + stx %i1, [%sp + STACK_BIAS + 0x48]; \ + stx %i2, [%sp + STACK_BIAS + 0x50]; \ + stx %i3, [%sp + STACK_BIAS + 0x58]; \ + stx %i4, [%sp + STACK_BIAS + 0x60]; \ + stx %i5, [%sp + STACK_BIAS + 0x68]; \ + stx %i6, [%sp + STACK_BIAS + 0x70]; \ + stx %i7, [%sp + STACK_BIAS + 0x78]; \ + saved; retry; nop; nop; nop; nop; nop; nop; \ + nop; nop; nop; nop; nop; nop; nop; nop; + +#define SPILL_0_NORMAL_ETRAP \ +etrap_kernel_spill: \ + stx %l0, [%sp + STACK_BIAS + 0x00]; \ + stx %l1, [%sp + STACK_BIAS + 0x08]; \ + stx %l2, [%sp + STACK_BIAS + 0x10]; \ + stx %l3, [%sp + STACK_BIAS + 0x18]; \ + stx %l4, [%sp + STACK_BIAS + 0x20]; \ + stx %l5, [%sp + STACK_BIAS + 0x28]; \ + stx %l6, [%sp + STACK_BIAS + 0x30]; \ + stx %l7, [%sp + STACK_BIAS + 0x38]; \ + stx %i0, [%sp + STACK_BIAS + 0x40]; \ + stx %i1, [%sp + STACK_BIAS + 0x48]; \ + stx %i2, [%sp + STACK_BIAS + 0x50]; \ + stx %i3, [%sp + STACK_BIAS + 0x58]; \ + stx %i4, [%sp + STACK_BIAS + 0x60]; \ + stx %i5, [%sp + STACK_BIAS + 0x68]; \ + stx %i6, [%sp + STACK_BIAS + 0x70]; \ + stx %i7, [%sp + STACK_BIAS + 0x78]; \ + saved; \ + sub %g1, 2, %g1; \ + ba,pt %xcc, etrap_save; \ + wrpr %g1, %cwp; \ + nop; nop; nop; nop; nop; nop; nop; nop; \ + nop; nop; nop; nop; + +/* Normal 64bit spill */ +#define SPILL_1_GENERIC(ASI) \ + add %sp, STACK_BIAS + 0x00, %g1; \ + stxa %l0, [%g1 + %g0] ASI; \ + mov 0x08, %g3; \ + stxa %l1, [%g1 + %g3] ASI; \ + add %g1, 0x10, %g1; \ + stxa %l2, [%g1 + %g0] ASI; \ + stxa %l3, [%g1 + %g3] ASI; \ + add %g1, 0x10, %g1; \ + stxa %l4, [%g1 + %g0] ASI; \ + stxa %l5, [%g1 + %g3] ASI; \ + add %g1, 0x10, %g1; \ + stxa %l6, [%g1 + %g0] ASI; \ + stxa %l7, [%g1 + %g3] ASI; \ + add %g1, 0x10, %g1; \ + stxa %i0, [%g1 + %g0] ASI; \ + stxa %i1, [%g1 + %g3] ASI; \ + add %g1, 0x10, %g1; \ + stxa %i2, [%g1 + %g0] ASI; \ + stxa %i3, [%g1 + %g3] ASI; \ + add %g1, 0x10, %g1; \ + stxa %i4, [%g1 + %g0] ASI; \ + stxa %i5, [%g1 + %g3] ASI; \ + add %g1, 0x10, %g1; \ + stxa %i6, [%g1 + %g0] ASI; \ + stxa %i7, [%g1 + %g3] ASI; \ + saved; \ + retry; nop; nop; \ + b,a,pt %xcc, spill_fixup_dax; \ + b,a,pt %xcc, spill_fixup_mna; \ + b,a,pt %xcc, spill_fixup; + +#define SPILL_1_GENERIC_ETRAP \ +etrap_user_spill_64bit: \ + stxa %l0, [%sp + STACK_BIAS + 0x00] %asi; \ + stxa %l1, [%sp + STACK_BIAS + 0x08] %asi; \ + stxa %l2, [%sp + STACK_BIAS + 0x10] %asi; \ + stxa %l3, [%sp + STACK_BIAS + 0x18] %asi; \ + stxa %l4, [%sp + STACK_BIAS + 0x20] %asi; \ + stxa %l5, [%sp + STACK_BIAS + 0x28] %asi; \ + stxa %l6, [%sp + STACK_BIAS + 0x30] %asi; \ + stxa %l7, [%sp + STACK_BIAS + 0x38] %asi; \ + stxa %i0, [%sp + STACK_BIAS + 0x40] %asi; \ + stxa %i1, [%sp + STACK_BIAS + 0x48] %asi; \ + stxa %i2, [%sp + STACK_BIAS + 0x50] %asi; \ + stxa %i3, [%sp + STACK_BIAS + 0x58] %asi; \ + stxa %i4, [%sp + STACK_BIAS + 0x60] %asi; \ + stxa %i5, [%sp + STACK_BIAS + 0x68] %asi; \ + stxa %i6, [%sp + STACK_BIAS + 0x70] %asi; \ + stxa %i7, [%sp + STACK_BIAS + 0x78] %asi; \ + saved; \ + sub %g1, 2, %g1; \ + ba,pt %xcc, etrap_save; \ + wrpr %g1, %cwp; \ + nop; nop; nop; nop; nop; \ + nop; nop; nop; nop; \ + ba,a,pt %xcc, etrap_spill_fixup_64bit; \ + ba,a,pt %xcc, etrap_spill_fixup_64bit; \ + ba,a,pt %xcc, etrap_spill_fixup_64bit; + +#define SPILL_1_GENERIC_ETRAP_FIXUP \ +etrap_spill_fixup_64bit: \ + ldub [%g6 + TI_WSAVED], %g1; \ + sll %g1, 3, %g3; \ + add %g6, %g3, %g3; \ + stx %sp, [%g3 + TI_RWIN_SPTRS]; \ + sll %g1, 7, %g3; \ + add %g6, %g3, %g3; \ + stx %l0, [%g3 + TI_REG_WINDOW + 0x00]; \ + stx %l1, [%g3 + TI_REG_WINDOW + 0x08]; \ + stx %l2, [%g3 + TI_REG_WINDOW + 0x10]; \ + stx %l3, [%g3 + TI_REG_WINDOW + 0x18]; \ + stx %l4, [%g3 + TI_REG_WINDOW + 0x20]; \ + stx %l5, [%g3 + TI_REG_WINDOW + 0x28]; \ + stx %l6, [%g3 + TI_REG_WINDOW + 0x30]; \ + stx %l7, [%g3 + TI_REG_WINDOW + 0x38]; \ + stx %i0, [%g3 + TI_REG_WINDOW + 0x40]; \ + stx %i1, [%g3 + TI_REG_WINDOW + 0x48]; \ + stx %i2, [%g3 + TI_REG_WINDOW + 0x50]; \ + stx %i3, [%g3 + TI_REG_WINDOW + 0x58]; \ + stx %i4, [%g3 + TI_REG_WINDOW + 0x60]; \ + stx %i5, [%g3 + TI_REG_WINDOW + 0x68]; \ + stx %i6, [%g3 + TI_REG_WINDOW + 0x70]; \ + stx %i7, [%g3 + TI_REG_WINDOW + 0x78]; \ + add %g1, 1, %g1; \ + stb %g1, [%g6 + TI_WSAVED]; \ + saved; \ + rdpr %cwp, %g1; \ + sub %g1, 2, %g1; \ + ba,pt %xcc, etrap_save; \ + wrpr %g1, %cwp; \ + nop; nop; nop + +/* Normal 32bit spill */ +#define SPILL_2_GENERIC(ASI) \ + srl %sp, 0, %sp; \ + stwa %l0, [%sp + %g0] ASI; \ + mov 0x04, %g3; \ + stwa %l1, [%sp + %g3] ASI; \ + add %sp, 0x08, %g1; \ + stwa %l2, [%g1 + %g0] ASI; \ + stwa %l3, [%g1 + %g3] ASI; \ + add %g1, 0x08, %g1; \ + stwa %l4, [%g1 + %g0] ASI; \ + stwa %l5, [%g1 + %g3] ASI; \ + add %g1, 0x08, %g1; \ + stwa %l6, [%g1 + %g0] ASI; \ + stwa %l7, [%g1 + %g3] ASI; \ + add %g1, 0x08, %g1; \ + stwa %i0, [%g1 + %g0] ASI; \ + stwa %i1, [%g1 + %g3] ASI; \ + add %g1, 0x08, %g1; \ + stwa %i2, [%g1 + %g0] ASI; \ + stwa %i3, [%g1 + %g3] ASI; \ + add %g1, 0x08, %g1; \ + stwa %i4, [%g1 + %g0] ASI; \ + stwa %i5, [%g1 + %g3] ASI; \ + add %g1, 0x08, %g1; \ + stwa %i6, [%g1 + %g0] ASI; \ + stwa %i7, [%g1 + %g3] ASI; \ + saved; \ + retry; nop; nop; \ + b,a,pt %xcc, spill_fixup_dax; \ + b,a,pt %xcc, spill_fixup_mna; \ + b,a,pt %xcc, spill_fixup; + +#define SPILL_2_GENERIC_ETRAP \ +etrap_user_spill_32bit: \ + srl %sp, 0, %sp; \ + stwa %l0, [%sp + 0x00] %asi; \ + stwa %l1, [%sp + 0x04] %asi; \ + stwa %l2, [%sp + 0x08] %asi; \ + stwa %l3, [%sp + 0x0c] %asi; \ + stwa %l4, [%sp + 0x10] %asi; \ + stwa %l5, [%sp + 0x14] %asi; \ + stwa %l6, [%sp + 0x18] %asi; \ + stwa %l7, [%sp + 0x1c] %asi; \ + stwa %i0, [%sp + 0x20] %asi; \ + stwa %i1, [%sp + 0x24] %asi; \ + stwa %i2, [%sp + 0x28] %asi; \ + stwa %i3, [%sp + 0x2c] %asi; \ + stwa %i4, [%sp + 0x30] %asi; \ + stwa %i5, [%sp + 0x34] %asi; \ + stwa %i6, [%sp + 0x38] %asi; \ + stwa %i7, [%sp + 0x3c] %asi; \ + saved; \ + sub %g1, 2, %g1; \ + ba,pt %xcc, etrap_save; \ + wrpr %g1, %cwp; \ + nop; nop; nop; nop; \ + nop; nop; nop; nop; \ + ba,a,pt %xcc, etrap_spill_fixup_32bit; \ + ba,a,pt %xcc, etrap_spill_fixup_32bit; \ + ba,a,pt %xcc, etrap_spill_fixup_32bit; + +#define SPILL_2_GENERIC_ETRAP_FIXUP \ +etrap_spill_fixup_32bit: \ + ldub [%g6 + TI_WSAVED], %g1; \ + sll %g1, 3, %g3; \ + add %g6, %g3, %g3; \ + stx %sp, [%g3 + TI_RWIN_SPTRS]; \ + sll %g1, 7, %g3; \ + add %g6, %g3, %g3; \ + stw %l0, [%g3 + TI_REG_WINDOW + 0x00]; \ + stw %l1, [%g3 + TI_REG_WINDOW + 0x04]; \ + stw %l2, [%g3 + TI_REG_WINDOW + 0x08]; \ + stw %l3, [%g3 + TI_REG_WINDOW + 0x0c]; \ + stw %l4, [%g3 + TI_REG_WINDOW + 0x10]; \ + stw %l5, [%g3 + TI_REG_WINDOW + 0x14]; \ + stw %l6, [%g3 + TI_REG_WINDOW + 0x18]; \ + stw %l7, [%g3 + TI_REG_WINDOW + 0x1c]; \ + stw %i0, [%g3 + TI_REG_WINDOW + 0x20]; \ + stw %i1, [%g3 + TI_REG_WINDOW + 0x24]; \ + stw %i2, [%g3 + TI_REG_WINDOW + 0x28]; \ + stw %i3, [%g3 + TI_REG_WINDOW + 0x2c]; \ + stw %i4, [%g3 + TI_REG_WINDOW + 0x30]; \ + stw %i5, [%g3 + TI_REG_WINDOW + 0x34]; \ + stw %i6, [%g3 + TI_REG_WINDOW + 0x38]; \ + stw %i7, [%g3 + TI_REG_WINDOW + 0x3c]; \ + add %g1, 1, %g1; \ + stb %g1, [%g6 + TI_WSAVED]; \ + saved; \ + rdpr %cwp, %g1; \ + sub %g1, 2, %g1; \ + ba,pt %xcc, etrap_save; \ + wrpr %g1, %cwp; \ + nop; nop; nop + +#define SPILL_1_NORMAL SPILL_1_GENERIC(ASI_AIUP) +#define SPILL_2_NORMAL SPILL_2_GENERIC(ASI_AIUP) +#define SPILL_3_NORMAL SPILL_0_NORMAL +#define SPILL_4_NORMAL SPILL_0_NORMAL +#define SPILL_5_NORMAL SPILL_0_NORMAL +#define SPILL_6_NORMAL SPILL_0_NORMAL +#define SPILL_7_NORMAL SPILL_0_NORMAL + +#define SPILL_0_OTHER SPILL_0_NORMAL +#define SPILL_1_OTHER SPILL_1_GENERIC(ASI_AIUS) +#define SPILL_2_OTHER SPILL_2_GENERIC(ASI_AIUS) +#define SPILL_3_OTHER SPILL_3_NORMAL +#define SPILL_4_OTHER SPILL_4_NORMAL +#define SPILL_5_OTHER SPILL_5_NORMAL +#define SPILL_6_OTHER SPILL_6_NORMAL +#define SPILL_7_OTHER SPILL_7_NORMAL + +/* Normal kernel fill */ +#define FILL_0_NORMAL \ + ldx [%sp + STACK_BIAS + 0x00], %l0; \ + ldx [%sp + STACK_BIAS + 0x08], %l1; \ + ldx [%sp + STACK_BIAS + 0x10], %l2; \ + ldx [%sp + STACK_BIAS + 0x18], %l3; \ + ldx [%sp + STACK_BIAS + 0x20], %l4; \ + ldx [%sp + STACK_BIAS + 0x28], %l5; \ + ldx [%sp + STACK_BIAS + 0x30], %l6; \ + ldx [%sp + STACK_BIAS + 0x38], %l7; \ + ldx [%sp + STACK_BIAS + 0x40], %i0; \ + ldx [%sp + STACK_BIAS + 0x48], %i1; \ + ldx [%sp + STACK_BIAS + 0x50], %i2; \ + ldx [%sp + STACK_BIAS + 0x58], %i3; \ + ldx [%sp + STACK_BIAS + 0x60], %i4; \ + ldx [%sp + STACK_BIAS + 0x68], %i5; \ + ldx [%sp + STACK_BIAS + 0x70], %i6; \ + ldx [%sp + STACK_BIAS + 0x78], %i7; \ + restored; retry; nop; nop; nop; nop; nop; nop; \ + nop; nop; nop; nop; nop; nop; nop; nop; + +#define FILL_0_NORMAL_RTRAP \ +kern_rtt_fill: \ + rdpr %cwp, %g1; \ + sub %g1, 1, %g1; \ + wrpr %g1, %cwp; \ + ldx [%sp + STACK_BIAS + 0x00], %l0; \ + ldx [%sp + STACK_BIAS + 0x08], %l1; \ + ldx [%sp + STACK_BIAS + 0x10], %l2; \ + ldx [%sp + STACK_BIAS + 0x18], %l3; \ + ldx [%sp + STACK_BIAS + 0x20], %l4; \ + ldx [%sp + STACK_BIAS + 0x28], %l5; \ + ldx [%sp + STACK_BIAS + 0x30], %l6; \ + ldx [%sp + STACK_BIAS + 0x38], %l7; \ + ldx [%sp + STACK_BIAS + 0x40], %i0; \ + ldx [%sp + STACK_BIAS + 0x48], %i1; \ + ldx [%sp + STACK_BIAS + 0x50], %i2; \ + ldx [%sp + STACK_BIAS + 0x58], %i3; \ + ldx [%sp + STACK_BIAS + 0x60], %i4; \ + ldx [%sp + STACK_BIAS + 0x68], %i5; \ + ldx [%sp + STACK_BIAS + 0x70], %i6; \ + ldx [%sp + STACK_BIAS + 0x78], %i7; \ + restored; \ + add %g1, 1, %g1; \ + ba,pt %xcc, kern_rtt_restore; \ + wrpr %g1, %cwp; \ + nop; nop; nop; nop; nop; \ + nop; nop; nop; nop; + + +/* Normal 64bit fill */ +#define FILL_1_GENERIC(ASI) \ + add %sp, STACK_BIAS + 0x00, %g1; \ + ldxa [%g1 + %g0] ASI, %l0; \ + mov 0x08, %g2; \ + mov 0x10, %g3; \ + ldxa [%g1 + %g2] ASI, %l1; \ + mov 0x18, %g5; \ + ldxa [%g1 + %g3] ASI, %l2; \ + ldxa [%g1 + %g5] ASI, %l3; \ + add %g1, 0x20, %g1; \ + ldxa [%g1 + %g0] ASI, %l4; \ + ldxa [%g1 + %g2] ASI, %l5; \ + ldxa [%g1 + %g3] ASI, %l6; \ + ldxa [%g1 + %g5] ASI, %l7; \ + add %g1, 0x20, %g1; \ + ldxa [%g1 + %g0] ASI, %i0; \ + ldxa [%g1 + %g2] ASI, %i1; \ + ldxa [%g1 + %g3] ASI, %i2; \ + ldxa [%g1 + %g5] ASI, %i3; \ + add %g1, 0x20, %g1; \ + ldxa [%g1 + %g0] ASI, %i4; \ + ldxa [%g1 + %g2] ASI, %i5; \ + ldxa [%g1 + %g3] ASI, %i6; \ + ldxa [%g1 + %g5] ASI, %i7; \ + restored; \ + retry; nop; nop; nop; nop; \ + b,a,pt %xcc, fill_fixup_dax; \ + b,a,pt %xcc, fill_fixup_mna; \ + b,a,pt %xcc, fill_fixup; + +#define FILL_1_GENERIC_RTRAP \ +user_rtt_fill_64bit: \ + ldxa [%sp + STACK_BIAS + 0x00] %asi, %l0; \ + ldxa [%sp + STACK_BIAS + 0x08] %asi, %l1; \ + ldxa [%sp + STACK_BIAS + 0x10] %asi, %l2; \ + ldxa [%sp + STACK_BIAS + 0x18] %asi, %l3; \ + ldxa [%sp + STACK_BIAS + 0x20] %asi, %l4; \ + ldxa [%sp + STACK_BIAS + 0x28] %asi, %l5; \ + ldxa [%sp + STACK_BIAS + 0x30] %asi, %l6; \ + ldxa [%sp + STACK_BIAS + 0x38] %asi, %l7; \ + ldxa [%sp + STACK_BIAS + 0x40] %asi, %i0; \ + ldxa [%sp + STACK_BIAS + 0x48] %asi, %i1; \ + ldxa [%sp + STACK_BIAS + 0x50] %asi, %i2; \ + ldxa [%sp + STACK_BIAS + 0x58] %asi, %i3; \ + ldxa [%sp + STACK_BIAS + 0x60] %asi, %i4; \ + ldxa [%sp + STACK_BIAS + 0x68] %asi, %i5; \ + ldxa [%sp + STACK_BIAS + 0x70] %asi, %i6; \ + ldxa [%sp + STACK_BIAS + 0x78] %asi, %i7; \ + ba,pt %xcc, user_rtt_pre_restore; \ + restored; \ + nop; nop; nop; nop; nop; nop; \ + nop; nop; nop; nop; nop; \ + ba,a,pt %xcc, user_rtt_fill_fixup; \ + ba,a,pt %xcc, user_rtt_fill_fixup; \ + ba,a,pt %xcc, user_rtt_fill_fixup; + + +/* Normal 32bit fill */ +#define FILL_2_GENERIC(ASI) \ + srl %sp, 0, %sp; \ + lduwa [%sp + %g0] ASI, %l0; \ + mov 0x04, %g2; \ + mov 0x08, %g3; \ + lduwa [%sp + %g2] ASI, %l1; \ + mov 0x0c, %g5; \ + lduwa [%sp + %g3] ASI, %l2; \ + lduwa [%sp + %g5] ASI, %l3; \ + add %sp, 0x10, %g1; \ + lduwa [%g1 + %g0] ASI, %l4; \ + lduwa [%g1 + %g2] ASI, %l5; \ + lduwa [%g1 + %g3] ASI, %l6; \ + lduwa [%g1 + %g5] ASI, %l7; \ + add %g1, 0x10, %g1; \ + lduwa [%g1 + %g0] ASI, %i0; \ + lduwa [%g1 + %g2] ASI, %i1; \ + lduwa [%g1 + %g3] ASI, %i2; \ + lduwa [%g1 + %g5] ASI, %i3; \ + add %g1, 0x10, %g1; \ + lduwa [%g1 + %g0] ASI, %i4; \ + lduwa [%g1 + %g2] ASI, %i5; \ + lduwa [%g1 + %g3] ASI, %i6; \ + lduwa [%g1 + %g5] ASI, %i7; \ + restored; \ + retry; nop; nop; nop; nop; \ + b,a,pt %xcc, fill_fixup_dax; \ + b,a,pt %xcc, fill_fixup_mna; \ + b,a,pt %xcc, fill_fixup; + +#define FILL_2_GENERIC_RTRAP \ +user_rtt_fill_32bit: \ + srl %sp, 0, %sp; \ + lduwa [%sp + 0x00] %asi, %l0; \ + lduwa [%sp + 0x04] %asi, %l1; \ + lduwa [%sp + 0x08] %asi, %l2; \ + lduwa [%sp + 0x0c] %asi, %l3; \ + lduwa [%sp + 0x10] %asi, %l4; \ + lduwa [%sp + 0x14] %asi, %l5; \ + lduwa [%sp + 0x18] %asi, %l6; \ + lduwa [%sp + 0x1c] %asi, %l7; \ + lduwa [%sp + 0x20] %asi, %i0; \ + lduwa [%sp + 0x24] %asi, %i1; \ + lduwa [%sp + 0x28] %asi, %i2; \ + lduwa [%sp + 0x2c] %asi, %i3; \ + lduwa [%sp + 0x30] %asi, %i4; \ + lduwa [%sp + 0x34] %asi, %i5; \ + lduwa [%sp + 0x38] %asi, %i6; \ + lduwa [%sp + 0x3c] %asi, %i7; \ + ba,pt %xcc, user_rtt_pre_restore; \ + restored; \ + nop; nop; nop; nop; nop; \ + nop; nop; nop; nop; nop; \ + ba,a,pt %xcc, user_rtt_fill_fixup; \ + ba,a,pt %xcc, user_rtt_fill_fixup; \ + ba,a,pt %xcc, user_rtt_fill_fixup; + + +#define FILL_1_NORMAL FILL_1_GENERIC(ASI_AIUP) +#define FILL_2_NORMAL FILL_2_GENERIC(ASI_AIUP) +#define FILL_3_NORMAL FILL_0_NORMAL +#define FILL_4_NORMAL FILL_0_NORMAL +#define FILL_5_NORMAL FILL_0_NORMAL +#define FILL_6_NORMAL FILL_0_NORMAL +#define FILL_7_NORMAL FILL_0_NORMAL + +#define FILL_0_OTHER FILL_0_NORMAL +#define FILL_1_OTHER FILL_1_GENERIC(ASI_AIUS) +#define FILL_2_OTHER FILL_2_GENERIC(ASI_AIUS) +#define FILL_3_OTHER FILL_3_NORMAL +#define FILL_4_OTHER FILL_4_NORMAL +#define FILL_5_OTHER FILL_5_NORMAL +#define FILL_6_OTHER FILL_6_NORMAL +#define FILL_7_OTHER FILL_7_NORMAL + +#endif /* !(_SPARC64_TTABLE_H) */ diff --git a/include/asm-sparc/upa.h b/include/asm-sparc/upa.h new file mode 100644 index 000000000000..5b1633223f92 --- /dev/null +++ b/include/asm-sparc/upa.h @@ -0,0 +1,109 @@ +#ifndef _SPARC64_UPA_H +#define _SPARC64_UPA_H + +#include + +/* UPA level registers and defines. */ + +/* UPA Config Register */ +#define UPA_CONFIG_RESV 0xffffffffc0000000 /* Reserved. */ +#define UPA_CONFIG_PCON 0x000000003fc00000 /* Depth of various sys queues. */ +#define UPA_CONFIG_MID 0x00000000003e0000 /* Module ID. */ +#define UPA_CONFIG_PCAP 0x000000000001ffff /* Port Capabilities. */ + +/* UPA Port ID Register */ +#define UPA_PORTID_FNP 0xff00000000000000 /* Hardcoded to 0xfc on ultra. */ +#define UPA_PORTID_RESV 0x00fffff800000000 /* Reserved. */ +#define UPA_PORTID_ECCVALID 0x0000000400000000 /* Zero if mod can generate ECC */ +#define UPA_PORTID_ONEREAD 0x0000000200000000 /* Set if mod generates P_RASB */ +#define UPA_PORTID_PINTRDQ 0x0000000180000000 /* # outstanding P_INT_REQ's */ +#define UPA_PORTID_PREQDQ 0x000000007e000000 /* slave-wr's to mod supported */ +#define UPA_PORTID_PREQRD 0x0000000001e00000 /* # incoming P_REQ's supported */ +#define UPA_PORTID_UPACAP 0x00000000001f0000 /* UPA capabilities of mod */ +#define UPA_PORTID_ID 0x000000000000ffff /* Module Identification bits */ + +/* UPA I/O space accessors */ +#if defined(__KERNEL__) && !defined(__ASSEMBLY__) +static inline unsigned char _upa_readb(unsigned long addr) +{ + unsigned char ret; + + __asm__ __volatile__("lduba\t[%1] %2, %0\t/* upa_readb */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline unsigned short _upa_readw(unsigned long addr) +{ + unsigned short ret; + + __asm__ __volatile__("lduha\t[%1] %2, %0\t/* upa_readw */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline unsigned int _upa_readl(unsigned long addr) +{ + unsigned int ret; + + __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* upa_readl */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline unsigned long _upa_readq(unsigned long addr) +{ + unsigned long ret; + + __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* upa_readq */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline void _upa_writeb(unsigned char b, unsigned long addr) +{ + __asm__ __volatile__("stba\t%0, [%1] %2\t/* upa_writeb */" + : /* no outputs */ + : "r" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +static inline void _upa_writew(unsigned short w, unsigned long addr) +{ + __asm__ __volatile__("stha\t%0, [%1] %2\t/* upa_writew */" + : /* no outputs */ + : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +static inline void _upa_writel(unsigned int l, unsigned long addr) +{ + __asm__ __volatile__("stwa\t%0, [%1] %2\t/* upa_writel */" + : /* no outputs */ + : "r" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +static inline void _upa_writeq(unsigned long q, unsigned long addr) +{ + __asm__ __volatile__("stxa\t%0, [%1] %2\t/* upa_writeq */" + : /* no outputs */ + : "r" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +#define upa_readb(__addr) (_upa_readb((unsigned long)(__addr))) +#define upa_readw(__addr) (_upa_readw((unsigned long)(__addr))) +#define upa_readl(__addr) (_upa_readl((unsigned long)(__addr))) +#define upa_readq(__addr) (_upa_readq((unsigned long)(__addr))) +#define upa_writeb(__b, __addr) (_upa_writeb((__b), (unsigned long)(__addr))) +#define upa_writew(__w, __addr) (_upa_writew((__w), (unsigned long)(__addr))) +#define upa_writel(__l, __addr) (_upa_writel((__l), (unsigned long)(__addr))) +#define upa_writeq(__q, __addr) (_upa_writeq((__q), (unsigned long)(__addr))) +#endif /* __KERNEL__ && !__ASSEMBLY__ */ + +#endif /* !(_SPARC64_UPA_H) */ diff --git a/include/asm-sparc/vio.h b/include/asm-sparc/vio.h new file mode 100644 index 000000000000..d4de32f0f8af --- /dev/null +++ b/include/asm-sparc/vio.h @@ -0,0 +1,406 @@ +#ifndef _SPARC64_VIO_H +#define _SPARC64_VIO_H + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +struct vio_msg_tag { + u8 type; +#define VIO_TYPE_CTRL 0x01 +#define VIO_TYPE_DATA 0x02 +#define VIO_TYPE_ERR 0x04 + + u8 stype; +#define VIO_SUBTYPE_INFO 0x01 +#define VIO_SUBTYPE_ACK 0x02 +#define VIO_SUBTYPE_NACK 0x04 + + u16 stype_env; +#define VIO_VER_INFO 0x0001 +#define VIO_ATTR_INFO 0x0002 +#define VIO_DRING_REG 0x0003 +#define VIO_DRING_UNREG 0x0004 +#define VIO_RDX 0x0005 +#define VIO_PKT_DATA 0x0040 +#define VIO_DESC_DATA 0x0041 +#define VIO_DRING_DATA 0x0042 +#define VNET_MCAST_INFO 0x0101 + + u32 sid; +}; + +struct vio_rdx { + struct vio_msg_tag tag; + u64 resv[6]; +}; + +struct vio_ver_info { + struct vio_msg_tag tag; + u16 major; + u16 minor; + u8 dev_class; +#define VDEV_NETWORK 0x01 +#define VDEV_NETWORK_SWITCH 0x02 +#define VDEV_DISK 0x03 +#define VDEV_DISK_SERVER 0x04 + + u8 resv1[3]; + u64 resv2[5]; +}; + +struct vio_dring_register { + struct vio_msg_tag tag; + u64 dring_ident; + u32 num_descr; + u32 descr_size; + u16 options; +#define VIO_TX_DRING 0x0001 +#define VIO_RX_DRING 0x0002 + u16 resv; + u32 num_cookies; + struct ldc_trans_cookie cookies[0]; +}; + +struct vio_dring_unregister { + struct vio_msg_tag tag; + u64 dring_ident; + u64 resv[5]; +}; + +/* Data transfer modes */ +#define VIO_PKT_MODE 0x01 /* Packet based transfer */ +#define VIO_DESC_MODE 0x02 /* In-band descriptors */ +#define VIO_DRING_MODE 0x03 /* Descriptor rings */ + +struct vio_dring_data { + struct vio_msg_tag tag; + u64 seq; + u64 dring_ident; + u32 start_idx; + u32 end_idx; + u8 state; +#define VIO_DRING_ACTIVE 0x01 +#define VIO_DRING_STOPPED 0x02 + + u8 __pad1; + u16 __pad2; + u32 __pad3; + u64 __par4[2]; +}; + +struct vio_dring_hdr { + u8 state; +#define VIO_DESC_FREE 0x01 +#define VIO_DESC_READY 0x02 +#define VIO_DESC_ACCEPTED 0x03 +#define VIO_DESC_DONE 0x04 + u8 ack; +#define VIO_ACK_ENABLE 0x01 +#define VIO_ACK_DISABLE 0x00 + + u16 __pad1; + u32 __pad2; +}; + +/* VIO disk specific structures and defines */ +struct vio_disk_attr_info { + struct vio_msg_tag tag; + u8 xfer_mode; + u8 vdisk_type; +#define VD_DISK_TYPE_SLICE 0x01 /* Slice in block device */ +#define VD_DISK_TYPE_DISK 0x02 /* Entire block device */ + u16 resv1; + u32 vdisk_block_size; + u64 operations; + u64 vdisk_size; + u64 max_xfer_size; + u64 resv2[2]; +}; + +struct vio_disk_desc { + struct vio_dring_hdr hdr; + u64 req_id; + u8 operation; +#define VD_OP_BREAD 0x01 /* Block read */ +#define VD_OP_BWRITE 0x02 /* Block write */ +#define VD_OP_FLUSH 0x03 /* Flush disk contents */ +#define VD_OP_GET_WCE 0x04 /* Get write-cache status */ +#define VD_OP_SET_WCE 0x05 /* Enable/disable write-cache */ +#define VD_OP_GET_VTOC 0x06 /* Get VTOC */ +#define VD_OP_SET_VTOC 0x07 /* Set VTOC */ +#define VD_OP_GET_DISKGEOM 0x08 /* Get disk geometry */ +#define VD_OP_SET_DISKGEOM 0x09 /* Set disk geometry */ +#define VD_OP_SCSICMD 0x0a /* SCSI control command */ +#define VD_OP_GET_DEVID 0x0b /* Get device ID */ +#define VD_OP_GET_EFI 0x0c /* Get EFI */ +#define VD_OP_SET_EFI 0x0d /* Set EFI */ + u8 slice; + u16 resv1; + u32 status; + u64 offset; + u64 size; + u32 ncookies; + u32 resv2; + struct ldc_trans_cookie cookies[0]; +}; + +#define VIO_DISK_VNAME_LEN 8 +#define VIO_DISK_ALABEL_LEN 128 +#define VIO_DISK_NUM_PART 8 + +struct vio_disk_vtoc { + u8 volume_name[VIO_DISK_VNAME_LEN]; + u16 sector_size; + u16 num_partitions; + u8 ascii_label[VIO_DISK_ALABEL_LEN]; + struct { + u16 id; + u16 perm_flags; + u32 resv; + u64 start_block; + u64 num_blocks; + } partitions[VIO_DISK_NUM_PART]; +}; + +struct vio_disk_geom { + u16 num_cyl; /* Num data cylinders */ + u16 alt_cyl; /* Num alternate cylinders */ + u16 beg_cyl; /* Cyl off of fixed head area */ + u16 num_hd; /* Num heads */ + u16 num_sec; /* Num sectors */ + u16 ifact; /* Interleave factor */ + u16 apc; /* Alts per cylinder (SCSI) */ + u16 rpm; /* Revolutions per minute */ + u16 phy_cyl; /* Num physical cylinders */ + u16 wr_skip; /* Num sects to skip, writes */ + u16 rd_skip; /* Num sects to skip, writes */ +}; + +struct vio_disk_devid { + u16 resv; + u16 type; + u32 len; + char id[0]; +}; + +struct vio_disk_efi { + u64 lba; + u64 len; + char data[0]; +}; + +/* VIO net specific structures and defines */ +struct vio_net_attr_info { + struct vio_msg_tag tag; + u8 xfer_mode; + u8 addr_type; +#define VNET_ADDR_ETHERMAC 0x01 + u16 ack_freq; + u32 resv1; + u64 addr; + u64 mtu; + u64 resv2[3]; +}; + +#define VNET_NUM_MCAST 7 + +struct vio_net_mcast_info { + struct vio_msg_tag tag; + u8 set; + u8 count; + u8 mcast_addr[VNET_NUM_MCAST * 6]; + u32 resv; +}; + +struct vio_net_desc { + struct vio_dring_hdr hdr; + u32 size; + u32 ncookies; + struct ldc_trans_cookie cookies[0]; +}; + +#define VIO_MAX_RING_COOKIES 24 + +struct vio_dring_state { + u64 ident; + void *base; + u64 snd_nxt; + u64 rcv_nxt; + u32 entry_size; + u32 num_entries; + u32 prod; + u32 cons; + u32 pending; + int ncookies; + struct ldc_trans_cookie cookies[VIO_MAX_RING_COOKIES]; +}; + +static inline void *vio_dring_cur(struct vio_dring_state *dr) +{ + return dr->base + (dr->entry_size * dr->prod); +} + +static inline void *vio_dring_entry(struct vio_dring_state *dr, + unsigned int index) +{ + return dr->base + (dr->entry_size * index); +} + +static inline u32 vio_dring_avail(struct vio_dring_state *dr, + unsigned int ring_size) +{ + BUILD_BUG_ON(!is_power_of_2(ring_size)); + + return (dr->pending - + ((dr->prod - dr->cons) & (ring_size - 1))); +} + +#define VIO_MAX_TYPE_LEN 32 +#define VIO_MAX_COMPAT_LEN 64 + +struct vio_dev { + u64 mp; + struct device_node *dp; + + char type[VIO_MAX_TYPE_LEN]; + char compat[VIO_MAX_COMPAT_LEN]; + int compat_len; + + u64 dev_no; + + unsigned long channel_id; + + unsigned int tx_irq; + unsigned int rx_irq; + + struct device dev; +}; + +struct vio_driver { + struct list_head node; + const struct vio_device_id *id_table; + int (*probe)(struct vio_dev *dev, const struct vio_device_id *id); + int (*remove)(struct vio_dev *dev); + void (*shutdown)(struct vio_dev *dev); + unsigned long driver_data; + struct device_driver driver; +}; + +struct vio_version { + u16 major; + u16 minor; +}; + +struct vio_driver_state; +struct vio_driver_ops { + int (*send_attr)(struct vio_driver_state *vio); + int (*handle_attr)(struct vio_driver_state *vio, void *pkt); + void (*handshake_complete)(struct vio_driver_state *vio); +}; + +struct vio_completion { + struct completion com; + int err; + int waiting_for; +}; + +struct vio_driver_state { + /* Protects VIO handshake and, optionally, driver private state. */ + spinlock_t lock; + + struct ldc_channel *lp; + + u32 _peer_sid; + u32 _local_sid; + struct vio_dring_state drings[2]; +#define VIO_DRIVER_TX_RING 0 +#define VIO_DRIVER_RX_RING 1 + + u8 hs_state; +#define VIO_HS_INVALID 0x00 +#define VIO_HS_GOTVERS 0x01 +#define VIO_HS_GOT_ATTR 0x04 +#define VIO_HS_SENT_DREG 0x08 +#define VIO_HS_SENT_RDX 0x10 +#define VIO_HS_GOT_RDX_ACK 0x20 +#define VIO_HS_GOT_RDX 0x40 +#define VIO_HS_SENT_RDX_ACK 0x80 +#define VIO_HS_COMPLETE (VIO_HS_GOT_RDX_ACK | VIO_HS_SENT_RDX_ACK) + + u8 dev_class; + + u8 dr_state; +#define VIO_DR_STATE_TXREG 0x01 +#define VIO_DR_STATE_RXREG 0x02 +#define VIO_DR_STATE_TXREQ 0x10 +#define VIO_DR_STATE_RXREQ 0x20 + + u8 debug; +#define VIO_DEBUG_HS 0x01 +#define VIO_DEBUG_DATA 0x02 + + void *desc_buf; + unsigned int desc_buf_len; + + struct vio_completion *cmp; + + struct vio_dev *vdev; + + struct timer_list timer; + + struct vio_version ver; + + struct vio_version *ver_table; + int ver_table_entries; + + char *name; + + struct vio_driver_ops *ops; +}; + +#define viodbg(TYPE, f, a...) \ +do { if (vio->debug & VIO_DEBUG_##TYPE) \ + printk(KERN_INFO "vio: ID[%lu] " f, \ + vio->vdev->channel_id, ## a); \ +} while (0) + +extern int vio_register_driver(struct vio_driver *drv); +extern void vio_unregister_driver(struct vio_driver *drv); + +static inline struct vio_driver *to_vio_driver(struct device_driver *drv) +{ + return container_of(drv, struct vio_driver, driver); +} + +static inline struct vio_dev *to_vio_dev(struct device *dev) +{ + return container_of(dev, struct vio_dev, dev); +} + +extern int vio_ldc_send(struct vio_driver_state *vio, void *data, int len); +extern void vio_link_state_change(struct vio_driver_state *vio, int event); +extern void vio_conn_reset(struct vio_driver_state *vio); +extern int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt); +extern int vio_validate_sid(struct vio_driver_state *vio, + struct vio_msg_tag *tp); +extern u32 vio_send_sid(struct vio_driver_state *vio); +extern int vio_ldc_alloc(struct vio_driver_state *vio, + struct ldc_channel_config *base_cfg, void *event_arg); +extern void vio_ldc_free(struct vio_driver_state *vio); +extern int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev, + u8 dev_class, struct vio_version *ver_table, + int ver_table_size, struct vio_driver_ops *ops, + char *name); + +extern void vio_port_up(struct vio_driver_state *vio); + +#endif /* _SPARC64_VIO_H */ diff --git a/include/asm-sparc/visasm.h b/include/asm-sparc/visasm.h new file mode 100644 index 000000000000..de797b9bf552 --- /dev/null +++ b/include/asm-sparc/visasm.h @@ -0,0 +1,62 @@ +#ifndef _SPARC64_VISASM_H +#define _SPARC64_VISASM_H + +/* visasm.h: FPU saving macros for VIS routines + * + * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) + */ + +#include +#include + +/* Clobbers %o5, %g1, %g2, %g3, %g7, %icc, %xcc */ + +#define VISEntry \ + rd %fprs, %o5; \ + andcc %o5, (FPRS_FEF|FPRS_DU), %g0; \ + be,pt %icc, 297f; \ + sethi %hi(297f), %g7; \ + sethi %hi(VISenter), %g1; \ + jmpl %g1 + %lo(VISenter), %g0; \ + or %g7, %lo(297f), %g7; \ +297: wr %g0, FPRS_FEF, %fprs; \ + +#define VISExit \ + wr %g0, 0, %fprs; + +/* Clobbers %o5, %g1, %g2, %g3, %g7, %icc, %xcc. + * Must preserve %o5 between VISEntryHalf and VISExitHalf */ + +#define VISEntryHalf \ + rd %fprs, %o5; \ + andcc %o5, FPRS_FEF, %g0; \ + be,pt %icc, 297f; \ + sethi %hi(298f), %g7; \ + sethi %hi(VISenterhalf), %g1; \ + jmpl %g1 + %lo(VISenterhalf), %g0; \ + or %g7, %lo(298f), %g7; \ + clr %o5; \ +297: wr %o5, FPRS_FEF, %fprs; \ +298: + +#define VISExitHalf \ + wr %o5, 0, %fprs; + +#ifndef __ASSEMBLY__ +static inline void save_and_clear_fpu(void) { + __asm__ __volatile__ ( +" rd %%fprs, %%o5\n" +" andcc %%o5, %0, %%g0\n" +" be,pt %%icc, 299f\n" +" sethi %%hi(298f), %%g7\n" +" sethi %%hi(VISenter), %%g1\n" +" jmpl %%g1 + %%lo(VISenter), %%g0\n" +" or %%g7, %%lo(298f), %%g7\n" +" 298: wr %%g0, 0, %%fprs\n" +" 299:\n" +" " : : "i" (FPRS_FEF|FPRS_DU) : + "o5", "g1", "g2", "g3", "g7", "cc"); +} +#endif + +#endif /* _SPARC64_ASI_H */ diff --git a/include/asm-sparc64/agp.h b/include/asm-sparc64/agp.h index e9fcf0e781ea..eb8d4b3f5163 100644 --- a/include/asm-sparc64/agp.h +++ b/include/asm-sparc64/agp.h @@ -1,20 +1 @@ -#ifndef AGP_H -#define AGP_H 1 - -/* dummy for now */ - -#define map_page_into_agp(page) -#define unmap_page_from_agp(page) -#define flush_agp_cache() mb() - -/* Convert a physical address to an address suitable for the GART. */ -#define phys_to_gart(x) (x) -#define gart_to_phys(x) (x) - -/* GATT allocation. Returns/accepts GATT kernel virtual address. */ -#define alloc_gatt_pages(order) \ - ((char *)__get_free_pages(GFP_KERNEL, (order))) -#define free_gatt_pages(table, order) \ - free_pages((unsigned long)(table), (order)) - -#endif +#include diff --git a/include/asm-sparc64/apb.h b/include/asm-sparc64/apb.h index 8f3b57db810f..5e236ca6e492 100644 --- a/include/asm-sparc64/apb.h +++ b/include/asm-sparc64/apb.h @@ -1,36 +1 @@ -/* - * apb.h: Advanced PCI Bridge Configuration Registers and Bits - * - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - */ - -#ifndef _SPARC64_APB_H -#define _SPARC64_APB_H - -#define APB_TICK_REGISTER 0xb0 -#define APB_INT_ACK 0xb8 -#define APB_PRIMARY_MASTER_RETRY_LIMIT 0xc0 -#define APB_DMA_ASFR 0xc8 -#define APB_DMA_AFAR 0xd0 -#define APB_PIO_TARGET_RETRY_LIMIT 0xd8 -#define APB_PIO_TARGET_LATENCY_TIMER 0xd9 -#define APB_DMA_TARGET_RETRY_LIMIT 0xda -#define APB_DMA_TARGET_LATENCY_TIMER 0xdb -#define APB_SECONDARY_MASTER_RETRY_LIMIT 0xdc -#define APB_SECONDARY_CONTROL 0xdd -#define APB_IO_ADDRESS_MAP 0xde -#define APB_MEM_ADDRESS_MAP 0xdf - -#define APB_PCI_CONTROL_LOW 0xe0 -# define APB_PCI_CTL_LOW_ARB_PARK (1 << 21) -# define APB_PCI_CTL_LOW_ERRINT_EN (1 << 8) - -#define APB_PCI_CONTROL_HIGH 0xe4 -# define APB_PCI_CTL_HIGH_SERR (1 << 2) -# define APB_PCI_CTL_HIGH_ARBITER_EN (1 << 0) - -#define APB_PIO_ASFR 0xe8 -#define APB_PIO_AFAR 0xf0 -#define APB_DIAG_REGISTER 0xf8 - -#endif /* !(_SPARC64_APB_H) */ +#include diff --git a/include/asm-sparc64/backoff.h b/include/asm-sparc64/backoff.h index fa1fdf67e350..8ee26d947e0e 100644 --- a/include/asm-sparc64/backoff.h +++ b/include/asm-sparc64/backoff.h @@ -1,31 +1 @@ -#ifndef _SPARC64_BACKOFF_H -#define _SPARC64_BACKOFF_H - -#define BACKOFF_LIMIT (4 * 1024) - -#ifdef CONFIG_SMP - -#define BACKOFF_SETUP(reg) \ - mov 1, reg - -#define BACKOFF_SPIN(reg, tmp, label) \ - mov reg, tmp; \ -88: brnz,pt tmp, 88b; \ - sub tmp, 1, tmp; \ - set BACKOFF_LIMIT, tmp; \ - cmp reg, tmp; \ - bg,pn %xcc, label; \ - nop; \ - ba,pt %xcc, label; \ - sllx reg, 1, reg; - -#else - -#define BACKOFF_SETUP(reg) -#define BACKOFF_SPIN(reg, tmp, label) \ - ba,pt %xcc, label; \ - nop; - -#endif - -#endif /* _SPARC64_BACKOFF_H */ +#include diff --git a/include/asm-sparc64/bbc.h b/include/asm-sparc64/bbc.h index 423a85800aae..06e8b6306514 100644 --- a/include/asm-sparc64/bbc.h +++ b/include/asm-sparc64/bbc.h @@ -1,225 +1 @@ -/* - * bbc.h: Defines for BootBus Controller found on UltraSPARC-III - * systems. - * - * Copyright (C) 2000 David S. Miller (davem@redhat.com) - */ - -#ifndef _SPARC64_BBC_H -#define _SPARC64_BBC_H - -/* Register sizes are indicated by "B" (Byte, 1-byte), - * "H" (Half-word, 2 bytes), "W" (Word, 4 bytes) or - * "Q" (Quad, 8 bytes) inside brackets. - */ - -#define BBC_AID 0x00 /* [B] Agent ID */ -#define BBC_DEVP 0x01 /* [B] Device Present */ -#define BBC_ARB 0x02 /* [B] Arbitration */ -#define BBC_QUIESCE 0x03 /* [B] Quiesce */ -#define BBC_WDACTION 0x04 /* [B] Watchdog Action */ -#define BBC_SPG 0x06 /* [B] Soft POR Gen */ -#define BBC_SXG 0x07 /* [B] Soft XIR Gen */ -#define BBC_PSRC 0x08 /* [W] POR Source */ -#define BBC_XSRC 0x0c /* [B] XIR Source */ -#define BBC_CSC 0x0d /* [B] Clock Synthesizers Control*/ -#define BBC_ES_CTRL 0x0e /* [H] Energy Star Control */ -#define BBC_ES_ACT 0x10 /* [W] E* Assert Change Time */ -#define BBC_ES_DACT 0x14 /* [B] E* De-Assert Change Time */ -#define BBC_ES_DABT 0x15 /* [B] E* De-Assert Bypass Time */ -#define BBC_ES_ABT 0x16 /* [H] E* Assert Bypass Time */ -#define BBC_ES_PST 0x18 /* [W] E* PLL Settle Time */ -#define BBC_ES_FSL 0x1c /* [W] E* Frequency Switch Latency*/ -#define BBC_EBUST 0x20 /* [Q] EBUS Timing */ -#define BBC_JTAG_CMD 0x28 /* [W] JTAG+ Command */ -#define BBC_JTAG_CTRL 0x2c /* [B] JTAG+ Control */ -#define BBC_I2C_SEL 0x2d /* [B] I2C Selection */ -#define BBC_I2C_0_S1 0x2e /* [B] I2C ctrlr-0 reg S1 */ -#define BBC_I2C_0_S0 0x2f /* [B] I2C ctrlr-0 regs S0,S0',S2,S3*/ -#define BBC_I2C_1_S1 0x30 /* [B] I2C ctrlr-1 reg S1 */ -#define BBC_I2C_1_S0 0x31 /* [B] I2C ctrlr-1 regs S0,S0',S2,S3*/ -#define BBC_KBD_BEEP 0x32 /* [B] Keyboard Beep */ -#define BBC_KBD_BCNT 0x34 /* [W] Keyboard Beep Counter */ - -#define BBC_REGS_SIZE 0x40 - -/* There is a 2K scratch ram area at offset 0x80000 but I doubt - * we will use it for anything. - */ - -/* Agent ID register. This register shows the Safari Agent ID - * for the processors. The value returned depends upon which - * cpu is reading the register. - */ -#define BBC_AID_ID 0x07 /* Safari ID */ -#define BBC_AID_RESV 0xf8 /* Reserved */ - -/* Device Present register. One can determine which cpus are actually - * present in the machine by interrogating this register. - */ -#define BBC_DEVP_CPU0 0x01 /* Processor 0 present */ -#define BBC_DEVP_CPU1 0x02 /* Processor 1 present */ -#define BBC_DEVP_CPU2 0x04 /* Processor 2 present */ -#define BBC_DEVP_CPU3 0x08 /* Processor 3 present */ -#define BBC_DEVP_RESV 0xf0 /* Reserved */ - -/* Arbitration register. This register is used to block access to - * the BBC from a particular cpu. - */ -#define BBC_ARB_CPU0 0x01 /* Enable cpu 0 BBC arbitratrion */ -#define BBC_ARB_CPU1 0x02 /* Enable cpu 1 BBC arbitratrion */ -#define BBC_ARB_CPU2 0x04 /* Enable cpu 2 BBC arbitratrion */ -#define BBC_ARB_CPU3 0x08 /* Enable cpu 3 BBC arbitratrion */ -#define BBC_ARB_RESV 0xf0 /* Reserved */ - -/* Quiesce register. Bus and BBC segments for cpus can be disabled - * with this register, ie. for hot plugging. - */ -#define BBC_QUIESCE_S02 0x01 /* Quiesce Safari segment for cpu 0 and 2 */ -#define BBC_QUIESCE_S13 0x02 /* Quiesce Safari segment for cpu 1 and 3 */ -#define BBC_QUIESCE_B02 0x04 /* Quiesce BBC segment for cpu 0 and 2 */ -#define BBC_QUIESCE_B13 0x08 /* Quiesce BBC segment for cpu 1 and 3 */ -#define BBC_QUIESCE_FD0 0x10 /* Disable Fatal_Error[0] reporting */ -#define BBC_QUIESCE_FD1 0x20 /* Disable Fatal_Error[1] reporting */ -#define BBC_QUIESCE_FD2 0x40 /* Disable Fatal_Error[2] reporting */ -#define BBC_QUIESCE_FD3 0x80 /* Disable Fatal_Error[3] reporting */ - -/* Watchdog Action register. When the watchdog device timer expires - * a line is enabled to the BBC. The action BBC takes when this line - * is asserted can be controlled by this regiser. - */ -#define BBC_WDACTION_RST 0x01 /* When set, watchdog causes system reset. - * When clear, BBC ignores watchdog signal. - */ -#define BBC_WDACTION_RESV 0xfe /* Reserved */ - -/* Soft_POR_GEN register. The POR (Power On Reset) signal may be asserted - * for specific processors or all processors via this register. - */ -#define BBC_SPG_CPU0 0x01 /* Assert POR for processor 0 */ -#define BBC_SPG_CPU1 0x02 /* Assert POR for processor 1 */ -#define BBC_SPG_CPU2 0x04 /* Assert POR for processor 2 */ -#define BBC_SPG_CPU3 0x08 /* Assert POR for processor 3 */ -#define BBC_SPG_CPUALL 0x10 /* Reset all processors and reset - * the entire system. - */ -#define BBC_SPG_RESV 0xe0 /* Reserved */ - -/* Soft_XIR_GEN register. The XIR (eXternally Initiated Reset) signal - * may be asserted to specific processors via this register. - */ -#define BBC_SXG_CPU0 0x01 /* Assert XIR for processor 0 */ -#define BBC_SXG_CPU1 0x02 /* Assert XIR for processor 1 */ -#define BBC_SXG_CPU2 0x04 /* Assert XIR for processor 2 */ -#define BBC_SXG_CPU3 0x08 /* Assert XIR for processor 3 */ -#define BBC_SXG_RESV 0xf0 /* Reserved */ - -/* POR Source register. One may identify the cause of the most recent - * reset by reading this register. - */ -#define BBC_PSRC_SPG0 0x0001 /* CPU 0 reset via BBC_SPG register */ -#define BBC_PSRC_SPG1 0x0002 /* CPU 1 reset via BBC_SPG register */ -#define BBC_PSRC_SPG2 0x0004 /* CPU 2 reset via BBC_SPG register */ -#define BBC_PSRC_SPG3 0x0008 /* CPU 3 reset via BBC_SPG register */ -#define BBC_PSRC_SPGSYS 0x0010 /* System reset via BBC_SPG register */ -#define BBC_PSRC_JTAG 0x0020 /* System reset via JTAG+ */ -#define BBC_PSRC_BUTTON 0x0040 /* System reset via push-button dongle */ -#define BBC_PSRC_PWRUP 0x0080 /* System reset via power-up */ -#define BBC_PSRC_FE0 0x0100 /* CPU 0 reported Fatal_Error */ -#define BBC_PSRC_FE1 0x0200 /* CPU 1 reported Fatal_Error */ -#define BBC_PSRC_FE2 0x0400 /* CPU 2 reported Fatal_Error */ -#define BBC_PSRC_FE3 0x0800 /* CPU 3 reported Fatal_Error */ -#define BBC_PSRC_FE4 0x1000 /* Schizo reported Fatal_Error */ -#define BBC_PSRC_FE5 0x2000 /* Safari device 5 reported Fatal_Error */ -#define BBC_PSRC_FE6 0x4000 /* CPMS reported Fatal_Error */ -#define BBC_PSRC_SYNTH 0x8000 /* System reset when on-board clock synthesizers - * were updated. - */ -#define BBC_PSRC_WDT 0x10000 /* System reset via Super I/O watchdog */ -#define BBC_PSRC_RSC 0x20000 /* System reset via RSC remote monitoring - * device - */ - -/* XIR Source register. The source of an XIR event sent to a processor may - * be determined via this register. - */ -#define BBC_XSRC_SXG0 0x01 /* CPU 0 received XIR via Soft_XIR_GEN reg */ -#define BBC_XSRC_SXG1 0x02 /* CPU 1 received XIR via Soft_XIR_GEN reg */ -#define BBC_XSRC_SXG2 0x04 /* CPU 2 received XIR via Soft_XIR_GEN reg */ -#define BBC_XSRC_SXG3 0x08 /* CPU 3 received XIR via Soft_XIR_GEN reg */ -#define BBC_XSRC_JTAG 0x10 /* All CPUs received XIR via JTAG+ */ -#define BBC_XSRC_W_OR_B 0x20 /* All CPUs received XIR either because: - * a) Super I/O watchdog fired, or - * b) XIR push button was activated - */ -#define BBC_XSRC_RESV 0xc0 /* Reserved */ - -/* Clock Synthesizers Control register. This register provides the big-bang - * programming interface to the two clock synthesizers of the machine. - */ -#define BBC_CSC_SLOAD 0x01 /* Directly connected to S_LOAD pins */ -#define BBC_CSC_SDATA 0x02 /* Directly connected to S_DATA pins */ -#define BBC_CSC_SCLOCK 0x04 /* Directly connected to S_CLOCK pins */ -#define BBC_CSC_RESV 0x78 /* Reserved */ -#define BBC_CSC_RST 0x80 /* Generate system reset when S_LOAD==1 */ - -/* Energy Star Control register. This register is used to generate the - * clock frequency change trigger to the main system devices (Schizo and - * the processors). The transition occurs when bits in this register - * go from 0 to 1, only one bit must be set at once else no action - * occurs. Basically the sequence of events is: - * a) Choose new frequency: full, 1/2 or 1/32 - * b) Program this desired frequency into the cpus and Schizo. - * c) Set the same value in this register. - * d) 16 system clocks later, clear this register. - */ -#define BBC_ES_CTRL_1_1 0x01 /* Full frequency */ -#define BBC_ES_CTRL_1_2 0x02 /* 1/2 frequency */ -#define BBC_ES_CTRL_1_32 0x20 /* 1/32 frequency */ -#define BBC_ES_RESV 0xdc /* Reserved */ - -/* Energy Star Assert Change Time register. This determines the number - * of BBC clock cycles (which is half the system frequency) between - * the detection of FREEZE_ACK being asserted and the assertion of - * the CLK_CHANGE_L[2:0] signals. - */ -#define BBC_ES_ACT_VAL 0xff - -/* Energy Star Assert Bypass Time register. This determines the number - * of BBC clock cycles (which is half the system frequency) between - * the assertion of the CLK_CHANGE_L[2:0] signals and the assertion of - * the ESTAR_PLL_BYPASS signal. - */ -#define BBC_ES_ABT_VAL 0xffff - -/* Energy Star PLL Settle Time register. This determines the number of - * BBC clock cycles (which is half the system frequency) between the - * de-assertion of CLK_CHANGE_L[2:0] and the de-assertion of the FREEZE_L - * signal. - */ -#define BBC_ES_PST_VAL 0xffffffff - -/* Energy Star Frequency Switch Latency register. This is the number of - * BBC clocks between the de-assertion of CLK_CHANGE_L[2:0] and the first - * edge of the Safari clock at the new frequency. - */ -#define BBC_ES_FSL_VAL 0xffffffff - -/* Keyboard Beep control register. This is a simple enabler for the audio - * beep sound. - */ -#define BBC_KBD_BEEP_ENABLE 0x01 /* Enable beep */ -#define BBC_KBD_BEEP_RESV 0xfe /* Reserved */ - -/* Keyboard Beep Counter register. There is a free-running counter inside - * the BBC which runs at half the system clock. The bit set in this register - * determines when the audio sound is generated. So for example if bit - * 10 is set, the audio beep will oscillate at 1/(2**12). The keyboard beep - * generator automatically selects a different bit to use if the system clock - * is changed via Energy Star. - */ -#define BBC_KBD_BCNT_BITS 0x0007fc00 -#define BBC_KBC_BCNT_RESV 0xfff803ff - -#endif /* _SPARC64_BBC_H */ - +#include diff --git a/include/asm-sparc64/chafsr.h b/include/asm-sparc64/chafsr.h index 85c69b38220b..aaab97562a39 100644 --- a/include/asm-sparc64/chafsr.h +++ b/include/asm-sparc64/chafsr.h @@ -1,241 +1 @@ -#ifndef _SPARC64_CHAFSR_H -#define _SPARC64_CHAFSR_H - -/* Cheetah Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */ - -/* Comments indicate which processor variants on which the bit definition - * is valid. Codes are: - * ch --> cheetah - * ch+ --> cheetah plus - * jp --> jalapeno - */ - -/* All bits of this register except M_SYNDROME and E_SYNDROME are - * read, write 1 to clear. M_SYNDROME and E_SYNDROME are read-only. - */ - -/* Software bit set by linux trap handlers to indicate that the trap was - * signalled at %tl >= 1. - */ -#define CHAFSR_TL1 (1UL << 63UL) /* n/a */ - -/* Unmapped error from system bus for prefetch queue or - * store queue read operation - */ -#define CHPAFSR_DTO (1UL << 59UL) /* ch+ */ - -/* Bus error from system bus for prefetch queue or store queue - * read operation - */ -#define CHPAFSR_DBERR (1UL << 58UL) /* ch+ */ - -/* Hardware corrected E-cache Tag ECC error */ -#define CHPAFSR_THCE (1UL << 57UL) /* ch+ */ -/* System interface protocol error, hw timeout caused */ -#define JPAFSR_JETO (1UL << 57UL) /* jp */ - -/* SW handled correctable E-cache Tag ECC error */ -#define CHPAFSR_TSCE (1UL << 56UL) /* ch+ */ -/* Parity error on system snoop results */ -#define JPAFSR_SCE (1UL << 56UL) /* jp */ - -/* Uncorrectable E-cache Tag ECC error */ -#define CHPAFSR_TUE (1UL << 55UL) /* ch+ */ -/* System interface protocol error, illegal command detected */ -#define JPAFSR_JEIC (1UL << 55UL) /* jp */ - -/* Uncorrectable system bus data ECC error due to prefetch - * or store fill request - */ -#define CHPAFSR_DUE (1UL << 54UL) /* ch+ */ -/* System interface protocol error, illegal ADTYPE detected */ -#define JPAFSR_JEIT (1UL << 54UL) /* jp */ - -/* Multiple errors of the same type have occurred. This bit is set when - * an uncorrectable error or a SW correctable error occurs and the status - * bit to report that error is already set. When multiple errors of - * different types are indicated by setting multiple status bits. - * - * This bit is not set if multiple HW corrected errors with the same - * status bit occur, only uncorrectable and SW correctable ones have - * this behavior. - * - * This bit is not set when multiple ECC errors happen within a single - * 64-byte system bus transaction. Only the first ECC error in a 16-byte - * subunit will be logged. All errors in subsequent 16-byte subunits - * from the same 64-byte transaction are ignored. - */ -#define CHAFSR_ME (1UL << 53UL) /* ch,ch+,jp */ - -/* Privileged state error has occurred. This is a capture of PSTATE.PRIV - * at the time the error is detected. - */ -#define CHAFSR_PRIV (1UL << 52UL) /* ch,ch+,jp */ - -/* The following bits 51 (CHAFSR_PERR) to 33 (CHAFSR_CE) are sticky error - * bits and record the most recently detected errors. Bits accumulate - * errors that have been detected since the last write to clear the bit. - */ - -/* System interface protocol error. The processor asserts its' ERROR - * pin when this event occurs and it also logs a specific cause code - * into a JTAG scannable flop. - */ -#define CHAFSR_PERR (1UL << 51UL) /* ch,ch+,jp */ - -/* Internal processor error. The processor asserts its' ERROR - * pin when this event occurs and it also logs a specific cause code - * into a JTAG scannable flop. - */ -#define CHAFSR_IERR (1UL << 50UL) /* ch,ch+,jp */ - -/* System request parity error on incoming address */ -#define CHAFSR_ISAP (1UL << 49UL) /* ch,ch+,jp */ - -/* HW Corrected system bus MTAG ECC error */ -#define CHAFSR_EMC (1UL << 48UL) /* ch,ch+ */ -/* Parity error on L2 cache tag SRAM */ -#define JPAFSR_ETP (1UL << 48UL) /* jp */ - -/* Uncorrectable system bus MTAG ECC error */ -#define CHAFSR_EMU (1UL << 47UL) /* ch,ch+ */ -/* Out of range memory error has occurred */ -#define JPAFSR_OM (1UL << 47UL) /* jp */ - -/* HW Corrected system bus data ECC error for read of interrupt vector */ -#define CHAFSR_IVC (1UL << 46UL) /* ch,ch+ */ -/* Error due to unsupported store */ -#define JPAFSR_UMS (1UL << 46UL) /* jp */ - -/* Uncorrectable system bus data ECC error for read of interrupt vector */ -#define CHAFSR_IVU (1UL << 45UL) /* ch,ch+,jp */ - -/* Unmapped error from system bus */ -#define CHAFSR_TO (1UL << 44UL) /* ch,ch+,jp */ - -/* Bus error response from system bus */ -#define CHAFSR_BERR (1UL << 43UL) /* ch,ch+,jp */ - -/* SW Correctable E-cache ECC error for instruction fetch or data access - * other than block load. - */ -#define CHAFSR_UCC (1UL << 42UL) /* ch,ch+,jp */ - -/* Uncorrectable E-cache ECC error for instruction fetch or data access - * other than block load. - */ -#define CHAFSR_UCU (1UL << 41UL) /* ch,ch+,jp */ - -/* Copyout HW Corrected ECC error */ -#define CHAFSR_CPC (1UL << 40UL) /* ch,ch+,jp */ - -/* Copyout Uncorrectable ECC error */ -#define CHAFSR_CPU (1UL << 39UL) /* ch,ch+,jp */ - -/* HW Corrected ECC error from E-cache for writeback */ -#define CHAFSR_WDC (1UL << 38UL) /* ch,ch+,jp */ - -/* Uncorrectable ECC error from E-cache for writeback */ -#define CHAFSR_WDU (1UL << 37UL) /* ch,ch+,jp */ - -/* HW Corrected ECC error from E-cache for store merge or block load */ -#define CHAFSR_EDC (1UL << 36UL) /* ch,ch+,jp */ - -/* Uncorrectable ECC error from E-cache for store merge or block load */ -#define CHAFSR_EDU (1UL << 35UL) /* ch,ch+,jp */ - -/* Uncorrectable system bus data ECC error for read of memory or I/O */ -#define CHAFSR_UE (1UL << 34UL) /* ch,ch+,jp */ - -/* HW Corrected system bus data ECC error for read of memory or I/O */ -#define CHAFSR_CE (1UL << 33UL) /* ch,ch+,jp */ - -/* Uncorrectable ECC error from remote cache/memory */ -#define JPAFSR_RUE (1UL << 32UL) /* jp */ - -/* Correctable ECC error from remote cache/memory */ -#define JPAFSR_RCE (1UL << 31UL) /* jp */ - -/* JBUS parity error on returned read data */ -#define JPAFSR_BP (1UL << 30UL) /* jp */ - -/* JBUS parity error on data for writeback or block store */ -#define JPAFSR_WBP (1UL << 29UL) /* jp */ - -/* Foreign read to DRAM incurring correctable ECC error */ -#define JPAFSR_FRC (1UL << 28UL) /* jp */ - -/* Foreign read to DRAM incurring uncorrectable ECC error */ -#define JPAFSR_FRU (1UL << 27UL) /* jp */ - -#define CHAFSR_ERRORS (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \ - CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \ - CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \ - CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \ - CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE) -#define CHPAFSR_ERRORS (CHPAFSR_DTO | CHPAFSR_DBERR | CHPAFSR_THCE | \ - CHPAFSR_TSCE | CHPAFSR_TUE | CHPAFSR_DUE | \ - CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \ - CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \ - CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \ - CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \ - CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE) -#define JPAFSR_ERRORS (JPAFSR_JETO | JPAFSR_SCE | JPAFSR_JEIC | \ - JPAFSR_JEIT | CHAFSR_PERR | CHAFSR_IERR | \ - CHAFSR_ISAP | JPAFSR_ETP | JPAFSR_OM | \ - JPAFSR_UMS | CHAFSR_IVU | CHAFSR_TO | \ - CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | \ - CHAFSR_CPC | CHAFSR_CPU | CHAFSR_WDC | \ - CHAFSR_WDU | CHAFSR_EDC | CHAFSR_EDU | \ - CHAFSR_UE | CHAFSR_CE | JPAFSR_RUE | \ - JPAFSR_RCE | JPAFSR_BP | JPAFSR_WBP | \ - JPAFSR_FRC | JPAFSR_FRU) - -/* Active JBUS request signal when error occurred */ -#define JPAFSR_JBREQ (0x7UL << 24UL) /* jp */ -#define JPAFSR_JBREQ_SHIFT 24UL - -/* L2 cache way information */ -#define JPAFSR_ETW (0x3UL << 22UL) /* jp */ -#define JPAFSR_ETW_SHIFT 22UL - -/* System bus MTAG ECC syndrome. This field captures the status of the - * first occurrence of the highest-priority error according to the M_SYND - * overwrite policy. After the AFSR sticky bit, corresponding to the error - * for which the M_SYND is reported, is cleared, the contents of the M_SYND - * field will be unchanged by will be unfrozen for further error capture. - */ -#define CHAFSR_M_SYNDROME (0xfUL << 16UL) /* ch,ch+,jp */ -#define CHAFSR_M_SYNDROME_SHIFT 16UL - -/* Agenid Id of the foreign device causing the UE/CE errors */ -#define JPAFSR_AID (0x1fUL << 9UL) /* jp */ -#define JPAFSR_AID_SHIFT 9UL - -/* System bus or E-cache data ECC syndrome. This field captures the status - * of the first occurrence of the highest-priority error according to the - * E_SYND overwrite policy. After the AFSR sticky bit, corresponding to the - * error for which the E_SYND is reported, is cleare, the contents of the E_SYND - * field will be unchanged but will be unfrozen for further error capture. - */ -#define CHAFSR_E_SYNDROME (0x1ffUL << 0UL) /* ch,ch+,jp */ -#define CHAFSR_E_SYNDROME_SHIFT 0UL - -/* The AFSR must be explicitly cleared by software, it is not cleared automatically - * by a read. Writes to bits <51:33> with bits set will clear the corresponding - * bits in the AFSR. Bits associated with disrupting traps must be cleared before - * interrupts are re-enabled to prevent multiple traps for the same error. I.e. - * PSTATE.IE and AFSR bits control delivery of disrupting traps. - * - * Since there is only one AFAR, when multiple events have been logged by the - * bits in the AFSR, at most one of these events will have its status captured - * in the AFAR. The highest priority of those event bits will get AFAR logging. - * The AFAR will be unlocked and available to capture the address of another event - * as soon as the one bit in AFSR that corresponds to the event logged in AFAR is - * cleared. For example, if AFSR.CE is detected, then AFSR.UE (which overwrites - * the AFAR), and AFSR.UE is cleared by not AFSR.CE, then the AFAR will be unlocked - * and ready for another event, even though AFSR.CE is still set. The same rules - * also apply to the M_SYNDROME and E_SYNDROME fields of the AFSR. - */ - -#endif /* _SPARC64_CHAFSR_H */ +#include diff --git a/include/asm-sparc64/chmctrl.h b/include/asm-sparc64/chmctrl.h index 859b4a4b0d30..eb757b483b30 100644 --- a/include/asm-sparc64/chmctrl.h +++ b/include/asm-sparc64/chmctrl.h @@ -1,183 +1 @@ -#ifndef _SPARC64_CHMCTRL_H -#define _SPARC64_CHMCTRL_H - -/* Cheetah memory controller programmable registers. */ -#define CHMCTRL_TCTRL1 0x00 /* Memory Timing Control I */ -#define CHMCTRL_TCTRL2 0x08 /* Memory Timing Control II */ -#define CHMCTRL_TCTRL3 0x38 /* Memory Timing Control III */ -#define CHMCTRL_TCTRL4 0x40 /* Memory Timing Control IV */ -#define CHMCTRL_DECODE1 0x10 /* Memory Address Decode I */ -#define CHMCTRL_DECODE2 0x18 /* Memory Address Decode II */ -#define CHMCTRL_DECODE3 0x20 /* Memory Address Decode III */ -#define CHMCTRL_DECODE4 0x28 /* Memory Address Decode IV */ -#define CHMCTRL_MACTRL 0x30 /* Memory Address Control */ - -/* Memory Timing Control I */ -#define TCTRL1_SDRAMCTL_DLY 0xf000000000000000UL -#define TCTRL1_SDRAMCTL_DLY_SHIFT 60 -#define TCTRL1_SDRAMCLK_DLY 0x0e00000000000000UL -#define TCTRL1_SDRAMCLK_DLY_SHIFT 57 -#define TCTRL1_R 0x0100000000000000UL -#define TCTRL1_R_SHIFT 56 -#define TCTRL1_AUTORFR_CYCLE 0x00fe000000000000UL -#define TCTRL1_AUTORFR_CYCLE_SHIFT 49 -#define TCTRL1_RD_WAIT 0x0001f00000000000UL -#define TCTRL1_RD_WAIT_SHIFT 44 -#define TCTRL1_PC_CYCLE 0x00000fc000000000UL -#define TCTRL1_PC_CYCLE_SHIFT 38 -#define TCTRL1_WR_MORE_RAS_PW 0x0000003f00000000UL -#define TCTRL1_WR_MORE_RAS_PW_SHIFT 32 -#define TCTRL1_RD_MORE_RAW_PW 0x00000000fc000000UL -#define TCTRL1_RD_MORE_RAS_PW_SHIFT 26 -#define TCTRL1_ACT_WR_DLY 0x0000000003f00000UL -#define TCTRL1_ACT_WR_DLY_SHIFT 20 -#define TCTRL1_ACT_RD_DLY 0x00000000000fc000UL -#define TCTRL1_ACT_RD_DLY_SHIFT 14 -#define TCTRL1_BANK_PRESENT 0x0000000000003000UL -#define TCTRL1_BANK_PRESENT_SHIFT 12 -#define TCTRL1_RFR_INT 0x0000000000000ff8UL -#define TCTRL1_RFR_INT_SHIFT 3 -#define TCTRL1_SET_MODE_REG 0x0000000000000004UL -#define TCTRL1_SET_MODE_REG_SHIFT 2 -#define TCTRL1_RFR_ENABLE 0x0000000000000002UL -#define TCTRL1_RFR_ENABLE_SHIFT 1 -#define TCTRL1_PRECHG_ALL 0x0000000000000001UL -#define TCTRL1_PRECHG_ALL_SHIFT 0 - -/* Memory Timing Control II */ -#define TCTRL2_WR_MSEL_DLY 0xfc00000000000000UL -#define TCTRL2_WR_MSEL_DLY_SHIFT 58 -#define TCTRL2_RD_MSEL_DLY 0x03f0000000000000UL -#define TCTRL2_RD_MSEL_DLY_SHIFT 52 -#define TCTRL2_WRDATA_THLD 0x000c000000000000UL -#define TCTRL2_WRDATA_THLD_SHIFT 50 -#define TCTRL2_RDWR_RD_TI_DLY 0x0003f00000000000UL -#define TCTRL2_RDWR_RD_TI_DLY_SHIFT 44 -#define TCTRL2_AUTOPRECHG_ENBL 0x0000080000000000UL -#define TCTRL2_AUTOPRECHG_ENBL_SHIFT 43 -#define TCTRL2_RDWR_PI_MORE_DLY 0x000007c000000000UL -#define TCTRL2_RDWR_PI_MORE_DLY_SHIFT 38 -#define TCTRL2_RDWR_1_DLY 0x0000003f00000000UL -#define TCTRL2_RDWR_1_DLY_SHIFT 32 -#define TCTRL2_WRWR_PI_MORE_DLY 0x00000000f8000000UL -#define TCTRL2_WRWR_PI_MORE_DLY_SHIFT 27 -#define TCTRL2_WRWR_1_DLY 0x0000000007e00000UL -#define TCTRL2_WRWR_1_DLY_SHIFT 21 -#define TCTRL2_RDWR_RD_PI_MORE_DLY 0x00000000001f0000UL -#define TCTRL2_RDWR_RD_PI_MORE_DLY_SHIFT 16 -#define TCTRL2_R 0x0000000000008000UL -#define TCTRL2_R_SHIFT 15 -#define TCTRL2_SDRAM_MODE_REG_DATA 0x0000000000007fffUL -#define TCTRL2_SDRAM_MODE_REG_DATA_SHIFT 0 - -/* Memory Timing Control III */ -#define TCTRL3_SDRAM_CTL_DLY 0xf000000000000000UL -#define TCTRL3_SDRAM_CTL_DLY_SHIFT 60 -#define TCTRL3_SDRAM_CLK_DLY 0x0e00000000000000UL -#define TCTRL3_SDRAM_CLK_DLY_SHIFT 57 -#define TCTRL3_R 0x0100000000000000UL -#define TCTRL3_R_SHIFT 56 -#define TCTRL3_AUTO_RFR_CYCLE 0x00fe000000000000UL -#define TCTRL3_AUTO_RFR_CYCLE_SHIFT 49 -#define TCTRL3_RD_WAIT 0x0001f00000000000UL -#define TCTRL3_RD_WAIT_SHIFT 44 -#define TCTRL3_PC_CYCLE 0x00000fc000000000UL -#define TCTRL3_PC_CYCLE_SHIFT 38 -#define TCTRL3_WR_MORE_RAW_PW 0x0000003f00000000UL -#define TCTRL3_WR_MORE_RAW_PW_SHIFT 32 -#define TCTRL3_RD_MORE_RAW_PW 0x00000000fc000000UL -#define TCTRL3_RD_MORE_RAW_PW_SHIFT 26 -#define TCTRL3_ACT_WR_DLY 0x0000000003f00000UL -#define TCTRL3_ACT_WR_DLY_SHIFT 20 -#define TCTRL3_ACT_RD_DLY 0x00000000000fc000UL -#define TCTRL3_ACT_RD_DLY_SHIFT 14 -#define TCTRL3_BANK_PRESENT 0x0000000000003000UL -#define TCTRL3_BANK_PRESENT_SHIFT 12 -#define TCTRL3_RFR_INT 0x0000000000000ff8UL -#define TCTRL3_RFR_INT_SHIFT 3 -#define TCTRL3_SET_MODE_REG 0x0000000000000004UL -#define TCTRL3_SET_MODE_REG_SHIFT 2 -#define TCTRL3_RFR_ENABLE 0x0000000000000002UL -#define TCTRL3_RFR_ENABLE_SHIFT 1 -#define TCTRL3_PRECHG_ALL 0x0000000000000001UL -#define TCTRL3_PRECHG_ALL_SHIFT 0 - -/* Memory Timing Control IV */ -#define TCTRL4_WR_MSEL_DLY 0xfc00000000000000UL -#define TCTRL4_WR_MSEL_DLY_SHIFT 58 -#define TCTRL4_RD_MSEL_DLY 0x03f0000000000000UL -#define TCTRL4_RD_MSEL_DLY_SHIFT 52 -#define TCTRL4_WRDATA_THLD 0x000c000000000000UL -#define TCTRL4_WRDATA_THLD_SHIFT 50 -#define TCTRL4_RDWR_RD_RI_DLY 0x0003f00000000000UL -#define TCTRL4_RDWR_RD_RI_DLY_SHIFT 44 -#define TCTRL4_AUTO_PRECHG_ENBL 0x0000080000000000UL -#define TCTRL4_AUTO_PRECHG_ENBL_SHIFT 43 -#define TCTRL4_RD_WR_PI_MORE_DLY 0x000007c000000000UL -#define TCTRL4_RD_WR_PI_MORE_DLY_SHIFT 38 -#define TCTRL4_RD_WR_TI_DLY 0x0000003f00000000UL -#define TCTRL4_RD_WR_TI_DLY_SHIFT 32 -#define TCTRL4_WR_WR_PI_MORE_DLY 0x00000000f8000000UL -#define TCTRL4_WR_WR_PI_MORE_DLY_SHIFT 27 -#define TCTRL4_WR_WR_TI_DLY 0x0000000007e00000UL -#define TCTRL4_WR_WR_TI_DLY_SHIFT 21 -#define TCTRL4_RDWR_RD_PI_MORE_DLY 0x00000000001f000UL0 -#define TCTRL4_RDWR_RD_PI_MORE_DLY_SHIFT 16 -#define TCTRL4_R 0x0000000000008000UL -#define TCTRL4_R_SHIFT 15 -#define TCTRL4_SDRAM_MODE_REG_DATA 0x0000000000007fffUL -#define TCTRL4_SDRAM_MODE_REG_DATA_SHIFT 0 - -/* All 4 memory address decoding registers have the - * same layout. - */ -#define MEM_DECODE_VALID 0x8000000000000000UL /* Valid */ -#define MEM_DECODE_VALID_SHIFT 63 -#define MEM_DECODE_UK 0x001ffe0000000000UL /* Upper mask */ -#define MEM_DECODE_UK_SHIFT 41 -#define MEM_DECODE_UM 0x0000001ffff00000UL /* Upper match */ -#define MEM_DECODE_UM_SHIFT 20 -#define MEM_DECODE_LK 0x000000000003c000UL /* Lower mask */ -#define MEM_DECODE_LK_SHIFT 14 -#define MEM_DECODE_LM 0x0000000000000f00UL /* Lower match */ -#define MEM_DECODE_LM_SHIFT 8 - -#define PA_UPPER_BITS 0x000007fffc000000UL -#define PA_UPPER_BITS_SHIFT 26 -#define PA_LOWER_BITS 0x00000000000003c0UL -#define PA_LOWER_BITS_SHIFT 6 - -#define MACTRL_R0 0x8000000000000000UL -#define MACTRL_R0_SHIFT 63 -#define MACTRL_ADDR_LE_PW 0x7000000000000000UL -#define MACTRL_ADDR_LE_PW_SHIFT 60 -#define MACTRL_CMD_PW 0x0f00000000000000UL -#define MACTRL_CMD_PW_SHIFT 56 -#define MACTRL_HALF_MODE_WR_MSEL_DLY 0x00fc000000000000UL -#define MACTRL_HALF_MODE_WR_MSEL_DLY_SHIFT 50 -#define MACTRL_HALF_MODE_RD_MSEL_DLY 0x0003f00000000000UL -#define MACTRL_HALF_MODE_RD_MSEL_DLY_SHIFT 44 -#define MACTRL_HALF_MODE_SDRAM_CTL_DLY 0x00000f0000000000UL -#define MACTRL_HALF_MODE_SDRAM_CTL_DLY_SHIFT 40 -#define MACTRL_HALF_MODE_SDRAM_CLK_DLY 0x000000e000000000UL -#define MACTRL_HALF_MODE_SDRAM_CLK_DLY_SHIFT 37 -#define MACTRL_R1 0x0000001000000000UL -#define MACTRL_R1_SHIFT 36 -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B3 0x0000000f00000000UL -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B3_SHIFT 32 -#define MACTRL_ENC_INTLV_B3 0x00000000f8000000UL -#define MACTRL_ENC_INTLV_B3_SHIFT 27 -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B2 0x0000000007800000UL -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B2_SHIFT 23 -#define MACTRL_ENC_INTLV_B2 0x00000000007c0000UL -#define MACTRL_ENC_INTLV_B2_SHIFT 18 -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B1 0x000000000003c000UL -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B1_SHIFT 14 -#define MACTRL_ENC_INTLV_B1 0x0000000000003e00UL -#define MACTRL_ENC_INTLV_B1_SHIFT 9 -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B0 0x00000000000001e0UL -#define MACTRL_BANKSEL_N_ROWADDR_SIZE_B0_SHIFT 5 -#define MACTRL_ENC_INTLV_B0 0x000000000000001fUL -#define MACTRL_ENC_INTLV_B0_SHIFT 0 - -#endif /* _SPARC64_CHMCTRL_H */ +#include diff --git a/include/asm-sparc64/cmt.h b/include/asm-sparc64/cmt.h index 870db5928577..b19b445cb810 100644 --- a/include/asm-sparc64/cmt.h +++ b/include/asm-sparc64/cmt.h @@ -1,59 +1 @@ -#ifndef _SPARC64_CMT_H -#define _SPARC64_CMT_H - -/* cmt.h: Chip Multi-Threading register definitions - * - * Copyright (C) 2004 David S. Miller (davem@redhat.com) - */ - -/* ASI_CORE_ID - private */ -#define LP_ID 0x0000000000000010UL -#define LP_ID_MAX 0x00000000003f0000UL -#define LP_ID_ID 0x000000000000003fUL - -/* ASI_INTR_ID - private */ -#define LP_INTR_ID 0x0000000000000000UL -#define LP_INTR_ID_ID 0x00000000000003ffUL - -/* ASI_CESR_ID - private */ -#define CESR_ID 0x0000000000000040UL -#define CESR_ID_ID 0x00000000000000ffUL - -/* ASI_CORE_AVAILABLE - shared */ -#define LP_AVAIL 0x0000000000000000UL -#define LP_AVAIL_1 0x0000000000000002UL -#define LP_AVAIL_0 0x0000000000000001UL - -/* ASI_CORE_ENABLE_STATUS - shared */ -#define LP_ENAB_STAT 0x0000000000000010UL -#define LP_ENAB_STAT_1 0x0000000000000002UL -#define LP_ENAB_STAT_0 0x0000000000000001UL - -/* ASI_CORE_ENABLE - shared */ -#define LP_ENAB 0x0000000000000020UL -#define LP_ENAB_1 0x0000000000000002UL -#define LP_ENAB_0 0x0000000000000001UL - -/* ASI_CORE_RUNNING - shared */ -#define LP_RUNNING_RW 0x0000000000000050UL -#define LP_RUNNING_W1S 0x0000000000000060UL -#define LP_RUNNING_W1C 0x0000000000000068UL -#define LP_RUNNING_1 0x0000000000000002UL -#define LP_RUNNING_0 0x0000000000000001UL - -/* ASI_CORE_RUNNING_STAT - shared */ -#define LP_RUN_STAT 0x0000000000000058UL -#define LP_RUN_STAT_1 0x0000000000000002UL -#define LP_RUN_STAT_0 0x0000000000000001UL - -/* ASI_XIR_STEERING - shared */ -#define LP_XIR_STEER 0x0000000000000030UL -#define LP_XIR_STEER_1 0x0000000000000002UL -#define LP_XIR_STEER_0 0x0000000000000001UL - -/* ASI_CMT_ERROR_STEERING - shared */ -#define CMT_ER_STEER 0x0000000000000040UL -#define CMT_ER_STEER_1 0x0000000000000002UL -#define CMT_ER_STEER_0 0x0000000000000001UL - -#endif /* _SPARC64_CMT_H */ +#include diff --git a/include/asm-sparc64/compat.h b/include/asm-sparc64/compat.h index f260b58f5ce9..8c155d221952 100644 --- a/include/asm-sparc64/compat.h +++ b/include/asm-sparc64/compat.h @@ -1,243 +1 @@ -#ifndef _ASM_SPARC64_COMPAT_H -#define _ASM_SPARC64_COMPAT_H -/* - * Architecture specific compatibility types - */ -#include - -#define COMPAT_USER_HZ 100 - -typedef u32 compat_size_t; -typedef s32 compat_ssize_t; -typedef s32 compat_time_t; -typedef s32 compat_clock_t; -typedef s32 compat_pid_t; -typedef u16 __compat_uid_t; -typedef u16 __compat_gid_t; -typedef u32 __compat_uid32_t; -typedef u32 __compat_gid32_t; -typedef u16 compat_mode_t; -typedef u32 compat_ino_t; -typedef u16 compat_dev_t; -typedef s32 compat_off_t; -typedef s64 compat_loff_t; -typedef s16 compat_nlink_t; -typedef u16 compat_ipc_pid_t; -typedef s32 compat_daddr_t; -typedef u32 compat_caddr_t; -typedef __kernel_fsid_t compat_fsid_t; -typedef s32 compat_key_t; -typedef s32 compat_timer_t; - -typedef s32 compat_int_t; -typedef s32 compat_long_t; -typedef s64 compat_s64; -typedef u32 compat_uint_t; -typedef u32 compat_ulong_t; -typedef u64 compat_u64; - -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - -struct compat_stat { - compat_dev_t st_dev; - compat_ino_t st_ino; - compat_mode_t st_mode; - compat_nlink_t st_nlink; - __compat_uid_t st_uid; - __compat_gid_t st_gid; - compat_dev_t st_rdev; - compat_off_t st_size; - compat_time_t st_atime; - compat_ulong_t st_atime_nsec; - compat_time_t st_mtime; - compat_ulong_t st_mtime_nsec; - compat_time_t st_ctime; - compat_ulong_t st_ctime_nsec; - compat_off_t st_blksize; - compat_off_t st_blocks; - u32 __unused4[2]; -}; - -struct compat_stat64 { - unsigned long long st_dev; - - unsigned long long st_ino; - - unsigned int st_mode; - unsigned int st_nlink; - - unsigned int st_uid; - unsigned int st_gid; - - unsigned long long st_rdev; - - unsigned char __pad3[8]; - - long long st_size; - unsigned int st_blksize; - - unsigned char __pad4[8]; - unsigned int st_blocks; - - unsigned int st_atime; - unsigned int st_atime_nsec; - - unsigned int st_mtime; - unsigned int st_mtime_nsec; - - unsigned int st_ctime; - unsigned int st_ctime_nsec; - - unsigned int __unused4; - unsigned int __unused5; -}; - -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; - short __unused; -}; - -#define F_GETLK64 12 -#define F_SETLK64 13 -#define F_SETLKW64 14 - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; - short __unused; -}; - -struct compat_statfs { - int f_type; - int f_bsize; - int f_blocks; - int f_bfree; - int f_bavail; - int f_files; - int f_ffree; - compat_fsid_t f_fsid; - int f_namelen; /* SunOS ignores this field. */ - int f_frsize; - int f_spare[5]; -}; - -#define COMPAT_RLIM_INFINITY 0x7fffffff - -typedef u32 compat_old_sigset_t; - -#define _COMPAT_NSIG 64 -#define _COMPAT_NSIG_BPW 32 - -typedef u32 compat_sigset_word; - -#define COMPAT_OFF_T_MAX 0x7fffffff -#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL - -/* - * A pointer passed in from user mode. This should not - * be used for syscall parameters, just declare them - * as pointers because the syscall entry code will have - * appropriately converted them already. - */ -typedef u32 compat_uptr_t; - -static inline void __user *compat_ptr(compat_uptr_t uptr) -{ - return (void __user *)(unsigned long)uptr; -} - -static inline compat_uptr_t ptr_to_compat(void __user *uptr) -{ - return (u32)(unsigned long)uptr; -} - -static inline void __user *compat_alloc_user_space(long len) -{ - struct pt_regs *regs = current_thread_info()->kregs; - unsigned long usp = regs->u_regs[UREG_I6]; - - if (!(test_thread_flag(TIF_32BIT))) - usp += STACK_BIAS; - else - usp &= 0xffffffffUL; - - usp -= len; - usp &= ~0x7UL; - - return (void __user *) usp; -} - -struct compat_ipc64_perm { - compat_key_t key; - __compat_uid32_t uid; - __compat_gid32_t gid; - __compat_uid32_t cuid; - __compat_gid32_t cgid; - unsigned short __pad1; - compat_mode_t mode; - unsigned short __pad2; - unsigned short seq; - unsigned long __unused1; /* yes they really are 64bit pads */ - unsigned long __unused2; -}; - -struct compat_semid64_ds { - struct compat_ipc64_perm sem_perm; - unsigned int __pad1; - compat_time_t sem_otime; - unsigned int __pad2; - compat_time_t sem_ctime; - u32 sem_nsems; - u32 __unused1; - u32 __unused2; -}; - -struct compat_msqid64_ds { - struct compat_ipc64_perm msg_perm; - unsigned int __pad1; - compat_time_t msg_stime; - unsigned int __pad2; - compat_time_t msg_rtime; - unsigned int __pad3; - compat_time_t msg_ctime; - unsigned int msg_cbytes; - unsigned int msg_qnum; - unsigned int msg_qbytes; - compat_pid_t msg_lspid; - compat_pid_t msg_lrpid; - unsigned int __unused1; - unsigned int __unused2; -}; - -struct compat_shmid64_ds { - struct compat_ipc64_perm shm_perm; - unsigned int __pad1; - compat_time_t shm_atime; - unsigned int __pad2; - compat_time_t shm_dtime; - unsigned int __pad3; - compat_time_t shm_ctime; - compat_size_t shm_segsz; - compat_pid_t shm_cpid; - compat_pid_t shm_lpid; - unsigned int shm_nattch; - unsigned int __unused1; - unsigned int __unused2; -}; - -#endif /* _ASM_SPARC64_COMPAT_H */ +#include diff --git a/include/asm-sparc64/compat_signal.h b/include/asm-sparc64/compat_signal.h index b759eab9b51c..7187dcc8cac7 100644 --- a/include/asm-sparc64/compat_signal.h +++ b/include/asm-sparc64/compat_signal.h @@ -1,29 +1 @@ -#ifndef _COMPAT_SIGNAL_H -#define _COMPAT_SIGNAL_H - -#include -#include - -#ifdef CONFIG_COMPAT -struct __new_sigaction32 { - unsigned sa_handler; - unsigned int sa_flags; - unsigned sa_restorer; /* not used by Linux/SPARC yet */ - compat_sigset_t sa_mask; -}; - -struct __old_sigaction32 { - unsigned sa_handler; - compat_old_sigset_t sa_mask; - unsigned int sa_flags; - unsigned sa_restorer; /* not used by Linux/SPARC yet */ -}; - -typedef struct sigaltstack32 { - u32 ss_sp; - int ss_flags; - compat_size_t ss_size; -} stack_t32; -#endif - -#endif /* !(_COMPAT_SIGNAL_H) */ +#include diff --git a/include/asm-sparc64/dcr.h b/include/asm-sparc64/dcr.h index 620c9ba642e9..d67613b1f5fe 100644 --- a/include/asm-sparc64/dcr.h +++ b/include/asm-sparc64/dcr.h @@ -1,14 +1 @@ -#ifndef _SPARC64_DCR_H -#define _SPARC64_DCR_H - -/* UltraSparc-III/III+ Dispatch Control Register, ASR 0x12 */ -#define DCR_DPE 0x0000000000001000 /* III+: D$ Parity Error Enable */ -#define DCR_OBS 0x0000000000000fc0 /* Observability Bus Controls */ -#define DCR_BPE 0x0000000000000020 /* Branch Predict Enable */ -#define DCR_RPE 0x0000000000000010 /* Return Address Prediction Enable */ -#define DCR_SI 0x0000000000000008 /* Single Instruction Disable */ -#define DCR_IPE 0x0000000000000004 /* III+: I$ Parity Error Enable */ -#define DCR_IFPOE 0x0000000000000002 /* IRQ FP Operation Enable */ -#define DCR_MS 0x0000000000000001 /* Multi-Scalar dispatch */ - -#endif /* _SPARC64_DCR_H */ +#include diff --git a/include/asm-sparc64/dcu.h b/include/asm-sparc64/dcu.h index 0f704e106a1b..28853f4968d1 100644 --- a/include/asm-sparc64/dcu.h +++ b/include/asm-sparc64/dcu.h @@ -1,27 +1 @@ -#ifndef _SPARC64_DCU_H -#define _SPARC64_DCU_H - -#include - -/* UltraSparc-III Data Cache Unit Control Register */ -#define DCU_CP _AC(0x0002000000000000,UL) /* Phys Cache Enable w/o mmu */ -#define DCU_CV _AC(0x0001000000000000,UL) /* Virt Cache Enable w/o mmu */ -#define DCU_ME _AC(0x0000800000000000,UL) /* NC-store Merging Enable */ -#define DCU_RE _AC(0x0000400000000000,UL) /* RAW bypass Enable */ -#define DCU_PE _AC(0x0000200000000000,UL) /* PCache Enable */ -#define DCU_HPE _AC(0x0000100000000000,UL) /* HW prefetch Enable */ -#define DCU_SPE _AC(0x0000080000000000,UL) /* SW prefetch Enable */ -#define DCU_SL _AC(0x0000040000000000,UL) /* Secondary ld-steering Enab*/ -#define DCU_WE _AC(0x0000020000000000,UL) /* WCache enable */ -#define DCU_PM _AC(0x000001fe00000000,UL) /* PA Watchpoint Byte Mask */ -#define DCU_VM _AC(0x00000001fe000000,UL) /* VA Watchpoint Byte Mask */ -#define DCU_PR _AC(0x0000000001000000,UL) /* PA Watchpoint Read Enable */ -#define DCU_PW _AC(0x0000000000800000,UL) /* PA Watchpoint Write Enable*/ -#define DCU_VR _AC(0x0000000000400000,UL) /* VA Watchpoint Read Enable */ -#define DCU_VW _AC(0x0000000000200000,UL) /* VA Watchpoint Write Enable*/ -#define DCU_DM _AC(0x0000000000000008,UL) /* DMMU Enable */ -#define DCU_IM _AC(0x0000000000000004,UL) /* IMMU Enable */ -#define DCU_DC _AC(0x0000000000000002,UL) /* Data Cache Enable */ -#define DCU_IC _AC(0x0000000000000001,UL) /* Instruction Cache Enable */ - -#endif /* _SPARC64_DCU_H */ +#include diff --git a/include/asm-sparc64/estate.h b/include/asm-sparc64/estate.h index 520c08560d1b..bedd0ef5f19c 100644 --- a/include/asm-sparc64/estate.h +++ b/include/asm-sparc64/estate.h @@ -1,49 +1 @@ -#ifndef _SPARC64_ESTATE_H -#define _SPARC64_ESTATE_H - -/* UltraSPARC-III E-cache Error Enable */ -#define ESTATE_ERROR_FMT 0x0000000000040000 /* Force MTAG ECC */ -#define ESTATE_ERROR_FMESS 0x000000000003c000 /* Forced MTAG ECC val */ -#define ESTATE_ERROR_FMD 0x0000000000002000 /* Force DATA ECC */ -#define ESTATE_ERROR_FDECC 0x0000000000001ff0 /* Forced DATA ECC val */ -#define ESTATE_ERROR_UCEEN 0x0000000000000008 /* See below */ -#define ESTATE_ERROR_NCEEN 0x0000000000000002 /* See below */ -#define ESTATE_ERROR_CEEN 0x0000000000000001 /* See below */ - -/* UCEEN enables the fast_ECC_error trap for: 1) software correctable E-cache - * errors 2) uncorrectable E-cache errors. Such events only occur on reads - * of the E-cache by the local processor for: 1) data loads 2) instruction - * fetches 3) atomic operations. Such events _cannot_ occur for: 1) merge - * 2) writeback 2) copyout. The AFSR bits associated with these traps are - * UCC and UCU. - */ - -/* NCEEN enables instruction_access_error, data_access_error, and ECC_error traps - * for uncorrectable ECC errors and system errors. - * - * Uncorrectable system bus data error or MTAG ECC error, system bus TimeOUT, - * or system bus BusERR: - * 1) As the result of an instruction fetch, will generate instruction_access_error - * 2) As the result of a load etc. will generate data_access_error. - * 3) As the result of store merge completion, writeback, or copyout will - * generate a disrupting ECC_error trap. - * 4) As the result of such errors on instruction vector fetch can generate any - * of the 3 trap types. - * - * The AFSR bits associated with these traps are EMU, EDU, WDU, CPU, IVU, UE, - * BERR, and TO. - */ - -/* CEEN enables the ECC_error trap for hardware corrected ECC errors. System bus - * reads resulting in a hardware corrected data or MTAG ECC error will generate an - * ECC_error disrupting trap with this bit enabled. - * - * This same trap will also be generated when a hardware corrected ECC error results - * during store merge, writeback, and copyout operations. - */ - -/* In general, if the trap enable bits above are disabled the AFSR bits will still - * log the events even though the trap will not be generated by the processor. - */ - -#endif /* _SPARC64_ESTATE_H */ +#include diff --git a/include/asm-sparc64/fhc.h b/include/asm-sparc64/fhc.h index 788cbc46a116..73eb04c19c47 100644 --- a/include/asm-sparc64/fhc.h +++ b/include/asm-sparc64/fhc.h @@ -1,121 +1 @@ -/* - * fhc.h: Structures for central/fhc pseudo driver on Sunfire/Starfire/Wildfire. - * - * Copyright (C) 1997, 1999 David S. Miller (davem@redhat.com) - */ - -#ifndef _SPARC64_FHC_H -#define _SPARC64_FHC_H - -#include - -#include -#include -#include - -struct linux_fhc; - -/* Clock board register offsets. */ -#define CLOCK_CTRL 0x00UL /* Main control */ -#define CLOCK_STAT1 0x10UL /* Status one */ -#define CLOCK_STAT2 0x20UL /* Status two */ -#define CLOCK_PWRSTAT 0x30UL /* Power status */ -#define CLOCK_PWRPRES 0x40UL /* Power presence */ -#define CLOCK_TEMP 0x50UL /* Temperature */ -#define CLOCK_IRQDIAG 0x60UL /* IRQ diagnostics */ -#define CLOCK_PWRSTAT2 0x70UL /* Power status two */ - -#define CLOCK_CTRL_LLED 0x04 /* Left LED, 0 == on */ -#define CLOCK_CTRL_MLED 0x02 /* Mid LED, 1 == on */ -#define CLOCK_CTRL_RLED 0x01 /* RIght LED, 1 == on */ - -struct linux_central { - struct linux_fhc *child; - unsigned long cfreg; - unsigned long clkregs; - unsigned long clkver; - int slots; - struct device_node *prom_node; - - struct linux_prom_ranges central_ranges[PROMREG_MAX]; - int num_central_ranges; -}; - -/* Firehose controller register offsets */ -struct fhc_regs { - unsigned long pregs; /* FHC internal regs */ -#define FHC_PREGS_ID 0x00UL /* FHC ID */ -#define FHC_ID_VERS 0xf0000000 /* Version of this FHC */ -#define FHC_ID_PARTID 0x0ffff000 /* Part ID code (0x0f9f == FHC) */ -#define FHC_ID_MANUF 0x0000007e /* Manufacturer (0x3e == SUN's JEDEC)*/ -#define FHC_ID_RESV 0x00000001 /* Read as one */ -#define FHC_PREGS_RCS 0x10UL /* FHC Reset Control/Status Register */ -#define FHC_RCS_POR 0x80000000 /* Last reset was a power cycle */ -#define FHC_RCS_SPOR 0x40000000 /* Last reset was sw power on reset */ -#define FHC_RCS_SXIR 0x20000000 /* Last reset was sw XIR reset */ -#define FHC_RCS_BPOR 0x10000000 /* Last reset was due to POR button */ -#define FHC_RCS_BXIR 0x08000000 /* Last reset was due to XIR button */ -#define FHC_RCS_WEVENT 0x04000000 /* CPU reset was due to wakeup event */ -#define FHC_RCS_CFATAL 0x02000000 /* Centerplane Fatal Error signalled */ -#define FHC_RCS_FENAB 0x01000000 /* Fatal errors elicit system reset */ -#define FHC_PREGS_CTRL 0x20UL /* FHC Control Register */ -#define FHC_CONTROL_ICS 0x00100000 /* Ignore Centerplane Signals */ -#define FHC_CONTROL_FRST 0x00080000 /* Fatal Error Reset Enable */ -#define FHC_CONTROL_LFAT 0x00040000 /* AC/DC signalled a local error */ -#define FHC_CONTROL_SLINE 0x00010000 /* Firmware Synchronization Line */ -#define FHC_CONTROL_DCD 0x00008000 /* DC-->DC Converter Disable */ -#define FHC_CONTROL_POFF 0x00004000 /* AC/DC Controller PLL Disable */ -#define FHC_CONTROL_FOFF 0x00002000 /* FHC Controller PLL Disable */ -#define FHC_CONTROL_AOFF 0x00001000 /* CPU A SRAM/SBD Low Power Mode */ -#define FHC_CONTROL_BOFF 0x00000800 /* CPU B SRAM/SBD Low Power Mode */ -#define FHC_CONTROL_PSOFF 0x00000400 /* Turns off this FHC's power supply */ -#define FHC_CONTROL_IXIST 0x00000200 /* 0=FHC tells clock board it exists */ -#define FHC_CONTROL_XMSTR 0x00000100 /* 1=Causes this FHC to be XIR master*/ -#define FHC_CONTROL_LLED 0x00000040 /* 0=Left LED ON */ -#define FHC_CONTROL_MLED 0x00000020 /* 1=Middle LED ON */ -#define FHC_CONTROL_RLED 0x00000010 /* 1=Right LED */ -#define FHC_CONTROL_BPINS 0x00000003 /* Spare Bidirectional Pins */ -#define FHC_PREGS_BSR 0x30UL /* FHC Board Status Register */ -#define FHC_BSR_DA64 0x00040000 /* Port A: 0=128bit 1=64bit data path */ -#define FHC_BSR_DB64 0x00020000 /* Port B: 0=128bit 1=64bit data path */ -#define FHC_BSR_BID 0x0001e000 /* Board ID */ -#define FHC_BSR_SA 0x00001c00 /* Port A UPA Speed (from the pins) */ -#define FHC_BSR_SB 0x00000380 /* Port B UPA Speed (from the pins) */ -#define FHC_BSR_NDIAG 0x00000040 /* Not in Diag Mode */ -#define FHC_BSR_NTBED 0x00000020 /* Not in TestBED Mode */ -#define FHC_BSR_NIA 0x0000001c /* Jumper, bit 18 in PROM space */ -#define FHC_BSR_SI 0x00000001 /* Spare input pin value */ -#define FHC_PREGS_ECC 0x40UL /* FHC ECC Control Register (16 bits) */ -#define FHC_PREGS_JCTRL 0xf0UL /* FHC JTAG Control Register */ -#define FHC_JTAG_CTRL_MENAB 0x80000000 /* Indicates this is JTAG Master */ -#define FHC_JTAG_CTRL_MNONE 0x40000000 /* Indicates no JTAG Master present */ -#define FHC_PREGS_JCMD 0x100UL /* FHC JTAG Command Register */ - unsigned long ireg; /* FHC IGN reg */ -#define FHC_IREG_IGN 0x00UL /* This FHC's IGN */ - unsigned long ffregs; /* FHC fanfail regs */ -#define FHC_FFREGS_IMAP 0x00UL /* FHC Fanfail IMAP */ -#define FHC_FFREGS_ICLR 0x10UL /* FHC Fanfail ICLR */ - unsigned long sregs; /* FHC system regs */ -#define FHC_SREGS_IMAP 0x00UL /* FHC System IMAP */ -#define FHC_SREGS_ICLR 0x10UL /* FHC System ICLR */ - unsigned long uregs; /* FHC uart regs */ -#define FHC_UREGS_IMAP 0x00UL /* FHC Uart IMAP */ -#define FHC_UREGS_ICLR 0x10UL /* FHC Uart ICLR */ - unsigned long tregs; /* FHC TOD regs */ -#define FHC_TREGS_IMAP 0x00UL /* FHC TOD IMAP */ -#define FHC_TREGS_ICLR 0x10UL /* FHC TOD ICLR */ -}; - -struct linux_fhc { - struct linux_fhc *next; - struct linux_central *parent; /* NULL if not central FHC */ - struct fhc_regs fhc_regs; - int board; - int jtag_master; - struct device_node *prom_node; - - struct linux_prom_ranges fhc_ranges[PROMREG_MAX]; - int num_fhc_ranges; -}; - -#endif /* !(_SPARC64_FHC_H) */ +#include diff --git a/include/asm-sparc64/fpumacro.h b/include/asm-sparc64/fpumacro.h index cc463fec806f..30d6d0f68bc3 100644 --- a/include/asm-sparc64/fpumacro.h +++ b/include/asm-sparc64/fpumacro.h @@ -1,33 +1 @@ -/* fpumacro.h: FPU related macros. - * - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC64_FPUMACRO_H -#define _SPARC64_FPUMACRO_H - -#include -#include - -struct fpustate { - u32 regs[64]; -}; - -#define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs) - -static inline unsigned long fprs_read(void) -{ - unsigned long retval; - - __asm__ __volatile__("rd %%fprs, %0" : "=r" (retval)); - - return retval; -} - -static inline void fprs_write(unsigned long val) -{ - __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val)); -} - -#endif /* !(_SPARC64_FPUMACRO_H) */ +#include diff --git a/include/asm-sparc64/hugetlb.h b/include/asm-sparc64/hugetlb.h index 412af58926a0..21d8f0a9c243 100644 --- a/include/asm-sparc64/hugetlb.h +++ b/include/asm-sparc64/hugetlb.h @@ -1,84 +1 @@ -#ifndef _ASM_SPARC64_HUGETLB_H -#define _ASM_SPARC64_HUGETLB_H - -#include - - -void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte); - -pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep); - -void hugetlb_prefault_arch_hook(struct mm_struct *mm); - -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - -/* - * If the arch doesn't supply something else, assume that hugepage - * size aligned regions are ok without further preparation. - */ -static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) -{ - if (len & ~HPAGE_MASK) - return -EINVAL; - if (addr & ~HPAGE_MASK) - return -EINVAL; - return 0; -} - -static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb, - unsigned long addr, unsigned long end, - unsigned long floor, - unsigned long ceiling) -{ - free_pgd_range(tlb, addr, end, floor, ceiling); -} - -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep) -{ -} - -static inline int huge_pte_none(pte_t pte) -{ - return pte_none(pte); -} - -static inline pte_t huge_pte_wrprotect(pte_t pte) -{ - return pte_wrprotect(pte); -} - -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep, - pte_t pte, int dirty) -{ - return ptep_set_access_flags(vma, addr, ptep, pte, dirty); -} - -static inline pte_t huge_ptep_get(pte_t *ptep) -{ - return *ptep; -} - -static inline int arch_prepare_hugepage(struct page *page) -{ - return 0; -} - -static inline void arch_release_hugepage(struct page *page) -{ -} - -#endif /* _ASM_SPARC64_HUGETLB_H */ +#include diff --git a/include/asm-sparc64/hvtramp.h b/include/asm-sparc64/hvtramp.h index b2b9b947b3a4..fb46bfe934a7 100644 --- a/include/asm-sparc64/hvtramp.h +++ b/include/asm-sparc64/hvtramp.h @@ -1,37 +1 @@ -#ifndef _SPARC64_HVTRAP_H -#define _SPARC64_HVTRAP_H - -#ifndef __ASSEMBLY__ - -#include - -struct hvtramp_mapping { - __u64 vaddr; - __u64 tte; -}; - -struct hvtramp_descr { - __u32 cpu; - __u32 num_mappings; - __u64 fault_info_va; - __u64 fault_info_pa; - __u64 thread_reg; - struct hvtramp_mapping maps[1]; -}; - -extern void hv_cpu_startup(unsigned long hvdescr_pa); - -#endif - -#define HVTRAMP_DESCR_CPU 0x00 -#define HVTRAMP_DESCR_NUM_MAPPINGS 0x04 -#define HVTRAMP_DESCR_FAULT_INFO_VA 0x08 -#define HVTRAMP_DESCR_FAULT_INFO_PA 0x10 -#define HVTRAMP_DESCR_THREAD_REG 0x18 -#define HVTRAMP_DESCR_MAPS 0x20 - -#define HVTRAMP_MAPPING_VADDR 0x00 -#define HVTRAMP_MAPPING_TTE 0x08 -#define HVTRAMP_MAPPING_SIZE 0x10 - -#endif /* _SPARC64_HVTRAP_H */ +#include diff --git a/include/asm-sparc64/hypervisor.h b/include/asm-sparc64/hypervisor.h index 3ad45dff52f8..fe7e51a9e429 100644 --- a/include/asm-sparc64/hypervisor.h +++ b/include/asm-sparc64/hypervisor.h @@ -1,2945 +1 @@ -#ifndef _SPARC64_HYPERVISOR_H -#define _SPARC64_HYPERVISOR_H - -/* Sun4v hypervisor interfaces and defines. - * - * Hypervisor calls are made via traps to software traps number 0x80 - * and above. Registers %o0 to %o5 serve as argument, status, and - * return value registers. - * - * There are two kinds of these traps. First there are the normal - * "fast traps" which use software trap 0x80 and encode the function - * to invoke by number in register %o5. Argument and return value - * handling is as follows: - * - * ----------------------------------------------- - * | %o5 | function number | undefined | - * | %o0 | argument 0 | return status | - * | %o1 | argument 1 | return value 1 | - * | %o2 | argument 2 | return value 2 | - * | %o3 | argument 3 | return value 3 | - * | %o4 | argument 4 | return value 4 | - * ----------------------------------------------- - * - * The second type are "hyper-fast traps" which encode the function - * number in the software trap number itself. So these use trap - * numbers > 0x80. The register usage for hyper-fast traps is as - * follows: - * - * ----------------------------------------------- - * | %o0 | argument 0 | return status | - * | %o1 | argument 1 | return value 1 | - * | %o2 | argument 2 | return value 2 | - * | %o3 | argument 3 | return value 3 | - * | %o4 | argument 4 | return value 4 | - * ----------------------------------------------- - * - * Registers providing explicit arguments to the hypervisor calls - * are volatile across the call. Upon return their values are - * undefined unless explicitly specified as containing a particular - * return value by the specific call. The return status is always - * returned in register %o0, zero indicates a successful execution of - * the hypervisor call and other values indicate an error status as - * defined below. So, for example, if a hyper-fast trap takes - * arguments 0, 1, and 2, then %o0, %o1, and %o2 are volatile across - * the call and %o3, %o4, and %o5 would be preserved. - * - * If the hypervisor trap is invalid, or the fast trap function number - * is invalid, HV_EBADTRAP will be returned in %o0. Also, all 64-bits - * of the argument and return values are significant. - */ - -/* Trap numbers. */ -#define HV_FAST_TRAP 0x80 -#define HV_MMU_MAP_ADDR_TRAP 0x83 -#define HV_MMU_UNMAP_ADDR_TRAP 0x84 -#define HV_TTRACE_ADDENTRY_TRAP 0x85 -#define HV_CORE_TRAP 0xff - -/* Error codes. */ -#define HV_EOK 0 /* Successful return */ -#define HV_ENOCPU 1 /* Invalid CPU id */ -#define HV_ENORADDR 2 /* Invalid real address */ -#define HV_ENOINTR 3 /* Invalid interrupt id */ -#define HV_EBADPGSZ 4 /* Invalid pagesize encoding */ -#define HV_EBADTSB 5 /* Invalid TSB description */ -#define HV_EINVAL 6 /* Invalid argument */ -#define HV_EBADTRAP 7 /* Invalid function number */ -#define HV_EBADALIGN 8 /* Invalid address alignment */ -#define HV_EWOULDBLOCK 9 /* Cannot complete w/o blocking */ -#define HV_ENOACCESS 10 /* No access to resource */ -#define HV_EIO 11 /* I/O error */ -#define HV_ECPUERROR 12 /* CPU in error state */ -#define HV_ENOTSUPPORTED 13 /* Function not supported */ -#define HV_ENOMAP 14 /* No mapping found */ -#define HV_ETOOMANY 15 /* Too many items specified */ -#define HV_ECHANNEL 16 /* Invalid LDC channel */ -#define HV_EBUSY 17 /* Resource busy */ - -/* mach_exit() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MACH_EXIT - * ARG0: exit code - * ERRORS: This service does not return. - * - * Stop all CPUs in the virtual domain and place them into the stopped - * state. The 64-bit exit code may be passed to a service entity as - * the domain's exit status. On systems without a service entity, the - * domain will undergo a reset, and the boot firmware will be - * reloaded. - * - * This function will never return to the guest that invokes it. - * - * Note: By convention an exit code of zero denotes a successful exit by - * the guest code. A non-zero exit code denotes a guest specific - * error indication. - * - */ -#define HV_FAST_MACH_EXIT 0x00 - -#ifndef __ASSEMBLY__ -extern void sun4v_mach_exit(unsigned long exit_code); -#endif - -/* Domain services. */ - -/* mach_desc() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MACH_DESC - * ARG0: buffer - * ARG1: length - * RET0: status - * RET1: length - * ERRORS: HV_EBADALIGN Buffer is badly aligned - * HV_ENORADDR Buffer is to an illegal real address. - * HV_EINVAL Buffer length is too small for complete - * machine description. - * - * Copy the most current machine description into the buffer indicated - * by the real address in ARG0. The buffer provided must be 16 byte - * aligned. Upon success or HV_EINVAL, this service returns the - * actual size of the machine description in the RET1 return value. - * - * Note: A method of determining the appropriate buffer size for the - * machine description is to first call this service with a buffer - * length of 0 bytes. - */ -#define HV_FAST_MACH_DESC 0x01 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_mach_desc(unsigned long buffer_pa, - unsigned long buf_len, - unsigned long *real_buf_len); -#endif - -/* mach_sir() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MACH_SIR - * ERRORS: This service does not return. - * - * Perform a software initiated reset of the virtual machine domain. - * All CPUs are captured as soon as possible, all hardware devices are - * returned to the entry default state, and the domain is restarted at - * the SIR (trap type 0x04) real trap table (RTBA) entry point on one - * of the CPUs. The single CPU restarted is selected as determined by - * platform specific policy. Memory is preserved across this - * operation. - */ -#define HV_FAST_MACH_SIR 0x02 - -#ifndef __ASSEMBLY__ -extern void sun4v_mach_sir(void); -#endif - -/* mach_set_watchdog() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MACH_SET_WATCHDOG - * ARG0: timeout in milliseconds - * RET0: status - * RET1: time remaining in milliseconds - * - * A guest uses this API to set a watchdog timer. Once the gues has set - * the timer, it must call the timer service again either to disable or - * postpone the expiration. If the timer expires before being reset or - * disabled, then the hypervisor take a platform specific action leading - * to guest termination within a bounded time period. The platform action - * may include recovery actions such as reporting the expiration to a - * Service Processor, and/or automatically restarting the gues. - * - * The 'timeout' parameter is specified in milliseconds, however the - * implementated granularity is given by the 'watchdog-resolution' - * property in the 'platform' node of the guest's machine description. - * The largest allowed timeout value is specified by the - * 'watchdog-max-timeout' property of the 'platform' node. - * - * If the 'timeout' argument is not zero, the watchdog timer is set to - * expire after a minimum of 'timeout' milliseconds. - * - * If the 'timeout' argument is zero, the watchdog timer is disabled. - * - * If the 'timeout' value exceeds the value of the 'max-watchdog-timeout' - * property, the hypervisor leaves the watchdog timer state unchanged, - * and returns a status of EINVAL. - * - * The 'time remaining' return value is valid regardless of whether the - * return status is EOK or EINVAL. A non-zero return value indicates the - * number of milliseconds that were remaining until the timer was to expire. - * If less than one millisecond remains, the return value is '1'. If the - * watchdog timer was disabled at the time of the call, the return value is - * zero. - * - * If the hypervisor cannot support the exact timeout value requested, but - * can support a larger timeout value, the hypervisor may round the actual - * timeout to a value larger than the requested timeout, consequently the - * 'time remaining' return value may be larger than the previously requested - * timeout value. - * - * Any guest OS debugger should be aware that the watchdog service may be in - * use. Consequently, it is recommended that the watchdog service is - * disabled upon debugger entry (e.g. reaching a breakpoint), and then - * re-enabled upon returning to normal execution. The API has been designed - * with this in mind, and the 'time remaining' result of the disable call may - * be used directly as the timeout argument of the re-enable call. - */ -#define HV_FAST_MACH_SET_WATCHDOG 0x05 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_mach_set_watchdog(unsigned long timeout, - unsigned long *orig_timeout); -#endif - -/* CPU services. - * - * CPUs represent devices that can execute software threads. A single - * chip that contains multiple cores or strands is represented as - * multiple CPUs with unique CPU identifiers. CPUs are exported to - * OBP via the machine description (and to the OS via the OBP device - * tree). CPUs are always in one of three states: stopped, running, - * or error. - * - * A CPU ID is a pre-assigned 16-bit value that uniquely identifies a - * CPU within a logical domain. Operations that are to be performed - * on multiple CPUs specify them via a CPU list. A CPU list is an - * array in real memory, of which each 16-bit word is a CPU ID. CPU - * lists are passed through the API as two arguments. The first is - * the number of entries (16-bit words) in the CPU list, and the - * second is the (real address) pointer to the CPU ID list. - */ - -/* cpu_start() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_START - * ARG0: CPU ID - * ARG1: PC - * ARG2: RTBA - * ARG3: target ARG0 - * RET0: status - * ERRORS: ENOCPU Invalid CPU ID - * EINVAL Target CPU ID is not in the stopped state - * ENORADDR Invalid PC or RTBA real address - * EBADALIGN Unaligned PC or unaligned RTBA - * EWOULDBLOCK Starting resources are not available - * - * Start CPU with given CPU ID with PC in %pc and with a real trap - * base address value of RTBA. The indicated CPU must be in the - * stopped state. The supplied RTBA must be aligned on a 256 byte - * boundary. On successful completion, the specified CPU will be in - * the running state and will be supplied with "target ARG0" in %o0 - * and RTBA in %tba. - */ -#define HV_FAST_CPU_START 0x10 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_cpu_start(unsigned long cpuid, - unsigned long pc, - unsigned long rtba, - unsigned long arg0); -#endif - -/* cpu_stop() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_STOP - * ARG0: CPU ID - * RET0: status - * ERRORS: ENOCPU Invalid CPU ID - * EINVAL Target CPU ID is the current cpu - * EINVAL Target CPU ID is not in the running state - * EWOULDBLOCK Stopping resources are not available - * ENOTSUPPORTED Not supported on this platform - * - * The specified CPU is stopped. The indicated CPU must be in the - * running state. On completion, it will be in the stopped state. It - * is not legal to stop the current CPU. - * - * Note: As this service cannot be used to stop the current cpu, this service - * may not be used to stop the last running CPU in a domain. To stop - * and exit a running domain, a guest must use the mach_exit() service. - */ -#define HV_FAST_CPU_STOP 0x11 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_cpu_stop(unsigned long cpuid); -#endif - -/* cpu_yield() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_YIELD - * RET0: status - * ERRORS: No possible error. - * - * Suspend execution on the current CPU. Execution will resume when - * an interrupt (device, %stick_compare, or cross-call) is targeted to - * the CPU. On some CPUs, this API may be used by the hypervisor to - * save power by disabling hardware strands. - */ -#define HV_FAST_CPU_YIELD 0x12 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_cpu_yield(void); -#endif - -/* cpu_qconf() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_QCONF - * ARG0: queue - * ARG1: base real address - * ARG2: number of entries - * RET0: status - * ERRORS: ENORADDR Invalid base real address - * EINVAL Invalid queue or number of entries is less - * than 2 or too large. - * EBADALIGN Base real address is not correctly aligned - * for size. - * - * Configure the given queue to be placed at the given base real - * address, with the given number of entries. The number of entries - * must be a power of 2. The base real address must be aligned - * exactly to match the queue size. Each queue entry is 64 bytes - * long, so for example a 32 entry queue must be aligned on a 2048 - * byte real address boundary. - * - * The specified queue is unconfigured if the number of entries is given - * as zero. - * - * For the current version of this API service, the argument queue is defined - * as follows: - * - * queue description - * ----- ------------------------- - * 0x3c cpu mondo queue - * 0x3d device mondo queue - * 0x3e resumable error queue - * 0x3f non-resumable error queue - * - * Note: The maximum number of entries for each queue for a specific cpu may - * be determined from the machine description. - */ -#define HV_FAST_CPU_QCONF 0x14 -#define HV_CPU_QUEUE_CPU_MONDO 0x3c -#define HV_CPU_QUEUE_DEVICE_MONDO 0x3d -#define HV_CPU_QUEUE_RES_ERROR 0x3e -#define HV_CPU_QUEUE_NONRES_ERROR 0x3f - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_cpu_qconf(unsigned long type, - unsigned long queue_paddr, - unsigned long num_queue_entries); -#endif - -/* cpu_qinfo() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_QINFO - * ARG0: queue - * RET0: status - * RET1: base real address - * RET1: number of entries - * ERRORS: EINVAL Invalid queue - * - * Return the configuration info for the given queue. The base real - * address and number of entries of the defined queue are returned. - * The queue argument values are the same as for cpu_qconf() above. - * - * If the specified queue is a valid queue number, but no queue has - * been defined, the number of entries will be set to zero and the - * base real address returned is undefined. - */ -#define HV_FAST_CPU_QINFO 0x15 - -/* cpu_mondo_send() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_MONDO_SEND - * ARG0-1: CPU list - * ARG2: data real address - * RET0: status - * ERRORS: EBADALIGN Mondo data is not 64-byte aligned or CPU list - * is not 2-byte aligned. - * ENORADDR Invalid data mondo address, or invalid cpu list - * address. - * ENOCPU Invalid cpu in CPU list - * EWOULDBLOCK Some or all of the listed CPUs did not receive - * the mondo - * ECPUERROR One or more of the listed CPUs are in error - * state, use HV_FAST_CPU_STATE to see which ones - * EINVAL CPU list includes caller's CPU ID - * - * Send a mondo interrupt to the CPUs in the given CPU list with the - * 64-bytes at the given data real address. The data must be 64-byte - * aligned. The mondo data will be delivered to the cpu_mondo queues - * of the recipient CPUs. - * - * In all cases, error or not, the CPUs in the CPU list to which the - * mondo has been successfully delivered will be indicated by having - * their entry in CPU list updated with the value 0xffff. - */ -#define HV_FAST_CPU_MONDO_SEND 0x42 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_cpu_mondo_send(unsigned long cpu_count, unsigned long cpu_list_pa, unsigned long mondo_block_pa); -#endif - -/* cpu_myid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_MYID - * RET0: status - * RET1: CPU ID - * ERRORS: No errors defined. - * - * Return the hypervisor ID handle for the current CPU. Use by a - * virtual CPU to discover it's own identity. - */ -#define HV_FAST_CPU_MYID 0x16 - -/* cpu_state() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_STATE - * ARG0: CPU ID - * RET0: status - * RET1: state - * ERRORS: ENOCPU Invalid CPU ID - * - * Retrieve the current state of the CPU with the given CPU ID. - */ -#define HV_FAST_CPU_STATE 0x17 -#define HV_CPU_STATE_STOPPED 0x01 -#define HV_CPU_STATE_RUNNING 0x02 -#define HV_CPU_STATE_ERROR 0x03 - -#ifndef __ASSEMBLY__ -extern long sun4v_cpu_state(unsigned long cpuid); -#endif - -/* cpu_set_rtba() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_SET_RTBA - * ARG0: RTBA - * RET0: status - * RET1: previous RTBA - * ERRORS: ENORADDR Invalid RTBA real address - * EBADALIGN RTBA is incorrectly aligned for a trap table - * - * Set the real trap base address of the local cpu to the given RTBA. - * The supplied RTBA must be aligned on a 256 byte boundary. Upon - * success the previous value of the RTBA is returned in RET1. - * - * Note: This service does not affect %tba - */ -#define HV_FAST_CPU_SET_RTBA 0x18 - -/* cpu_set_rtba() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CPU_GET_RTBA - * RET0: status - * RET1: previous RTBA - * ERRORS: No possible error. - * - * Returns the current value of RTBA in RET1. - */ -#define HV_FAST_CPU_GET_RTBA 0x19 - -/* MMU services. - * - * Layout of a TSB description for mmu_tsb_ctx{,non}0() calls. - */ -#ifndef __ASSEMBLY__ -struct hv_tsb_descr { - unsigned short pgsz_idx; - unsigned short assoc; - unsigned int num_ttes; /* in TTEs */ - unsigned int ctx_idx; - unsigned int pgsz_mask; - unsigned long tsb_base; - unsigned long resv; -}; -#endif -#define HV_TSB_DESCR_PGSZ_IDX_OFFSET 0x00 -#define HV_TSB_DESCR_ASSOC_OFFSET 0x02 -#define HV_TSB_DESCR_NUM_TTES_OFFSET 0x04 -#define HV_TSB_DESCR_CTX_IDX_OFFSET 0x08 -#define HV_TSB_DESCR_PGSZ_MASK_OFFSET 0x0c -#define HV_TSB_DESCR_TSB_BASE_OFFSET 0x10 -#define HV_TSB_DESCR_RESV_OFFSET 0x18 - -/* Page size bitmask. */ -#define HV_PGSZ_MASK_8K (1 << 0) -#define HV_PGSZ_MASK_64K (1 << 1) -#define HV_PGSZ_MASK_512K (1 << 2) -#define HV_PGSZ_MASK_4MB (1 << 3) -#define HV_PGSZ_MASK_32MB (1 << 4) -#define HV_PGSZ_MASK_256MB (1 << 5) -#define HV_PGSZ_MASK_2GB (1 << 6) -#define HV_PGSZ_MASK_16GB (1 << 7) - -/* Page size index. The value given in the TSB descriptor must correspond - * to the smallest page size specified in the pgsz_mask page size bitmask. - */ -#define HV_PGSZ_IDX_8K 0 -#define HV_PGSZ_IDX_64K 1 -#define HV_PGSZ_IDX_512K 2 -#define HV_PGSZ_IDX_4MB 3 -#define HV_PGSZ_IDX_32MB 4 -#define HV_PGSZ_IDX_256MB 5 -#define HV_PGSZ_IDX_2GB 6 -#define HV_PGSZ_IDX_16GB 7 - -/* MMU fault status area. - * - * MMU related faults have their status and fault address information - * placed into a memory region made available by privileged code. Each - * virtual processor must make a mmu_fault_area_conf() call to tell the - * hypervisor where that processor's fault status should be stored. - * - * The fault status block is a multiple of 64-bytes and must be aligned - * on a 64-byte boundary. - */ -#ifndef __ASSEMBLY__ -struct hv_fault_status { - unsigned long i_fault_type; - unsigned long i_fault_addr; - unsigned long i_fault_ctx; - unsigned long i_reserved[5]; - unsigned long d_fault_type; - unsigned long d_fault_addr; - unsigned long d_fault_ctx; - unsigned long d_reserved[5]; -}; -#endif -#define HV_FAULT_I_TYPE_OFFSET 0x00 -#define HV_FAULT_I_ADDR_OFFSET 0x08 -#define HV_FAULT_I_CTX_OFFSET 0x10 -#define HV_FAULT_D_TYPE_OFFSET 0x40 -#define HV_FAULT_D_ADDR_OFFSET 0x48 -#define HV_FAULT_D_CTX_OFFSET 0x50 - -#define HV_FAULT_TYPE_FAST_MISS 1 -#define HV_FAULT_TYPE_FAST_PROT 2 -#define HV_FAULT_TYPE_MMU_MISS 3 -#define HV_FAULT_TYPE_INV_RA 4 -#define HV_FAULT_TYPE_PRIV_VIOL 5 -#define HV_FAULT_TYPE_PROT_VIOL 6 -#define HV_FAULT_TYPE_NFO 7 -#define HV_FAULT_TYPE_NFO_SEFF 8 -#define HV_FAULT_TYPE_INV_VA 9 -#define HV_FAULT_TYPE_INV_ASI 10 -#define HV_FAULT_TYPE_NC_ATOMIC 11 -#define HV_FAULT_TYPE_PRIV_ACT 12 -#define HV_FAULT_TYPE_RESV1 13 -#define HV_FAULT_TYPE_UNALIGNED 14 -#define HV_FAULT_TYPE_INV_PGSZ 15 -/* Values 16 --> -2 are reserved. */ -#define HV_FAULT_TYPE_MULTIPLE -1 - -/* Flags argument for mmu_{map,unmap}_addr(), mmu_demap_{page,context,all}(), - * and mmu_{map,unmap}_perm_addr(). - */ -#define HV_MMU_DMMU 0x01 -#define HV_MMU_IMMU 0x02 -#define HV_MMU_ALL (HV_MMU_DMMU | HV_MMU_IMMU) - -/* mmu_map_addr() - * TRAP: HV_MMU_MAP_ADDR_TRAP - * ARG0: virtual address - * ARG1: mmu context - * ARG2: TTE - * ARG3: flags (HV_MMU_{IMMU,DMMU}) - * ERRORS: EINVAL Invalid virtual address, mmu context, or flags - * EBADPGSZ Invalid page size value - * ENORADDR Invalid real address in TTE - * - * Create a non-permanent mapping using the given TTE, virtual - * address, and mmu context. The flags argument determines which - * (data, or instruction, or both) TLB the mapping gets loaded into. - * - * The behavior is undefined if the valid bit is clear in the TTE. - * - * Note: This API call is for privileged code to specify temporary translation - * mappings without the need to create and manage a TSB. - */ - -/* mmu_unmap_addr() - * TRAP: HV_MMU_UNMAP_ADDR_TRAP - * ARG0: virtual address - * ARG1: mmu context - * ARG2: flags (HV_MMU_{IMMU,DMMU}) - * ERRORS: EINVAL Invalid virtual address, mmu context, or flags - * - * Demaps the given virtual address in the given mmu context on this - * CPU. This function is intended to be used to demap pages mapped - * with mmu_map_addr. This service is equivalent to invoking - * mmu_demap_page() with only the current CPU in the CPU list. The - * flags argument determines which (data, or instruction, or both) TLB - * the mapping gets unmapped from. - * - * Attempting to perform an unmap operation for a previously defined - * permanent mapping will have undefined results. - */ - -/* mmu_tsb_ctx0() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_TSB_CTX0 - * ARG0: number of TSB descriptions - * ARG1: TSB descriptions pointer - * RET0: status - * ERRORS: ENORADDR Invalid TSB descriptions pointer or - * TSB base within a descriptor - * EBADALIGN TSB descriptions pointer is not aligned - * to an 8-byte boundary, or TSB base - * within a descriptor is not aligned for - * the given TSB size - * EBADPGSZ Invalid page size in a TSB descriptor - * EBADTSB Invalid associativity or size in a TSB - * descriptor - * EINVAL Invalid number of TSB descriptions, or - * invalid context index in a TSB - * descriptor, or index page size not - * equal to smallest page size in page - * size bitmask field. - * - * Configures the TSBs for the current CPU for virtual addresses with - * context zero. The TSB descriptions pointer is a pointer to an - * array of the given number of TSB descriptions. - * - * Note: The maximum number of TSBs available to a virtual CPU is given by the - * mmu-max-#tsbs property of the cpu's corresponding "cpu" node in the - * machine description. - */ -#define HV_FAST_MMU_TSB_CTX0 0x20 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions, - unsigned long tsb_desc_ra); -#endif - -/* mmu_tsb_ctxnon0() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_TSB_CTXNON0 - * ARG0: number of TSB descriptions - * ARG1: TSB descriptions pointer - * RET0: status - * ERRORS: Same as for mmu_tsb_ctx0() above. - * - * Configures the TSBs for the current CPU for virtual addresses with - * non-zero contexts. The TSB descriptions pointer is a pointer to an - * array of the given number of TSB descriptions. - * - * Note: A maximum of 16 TSBs may be specified in the TSB description list. - */ -#define HV_FAST_MMU_TSB_CTXNON0 0x21 - -/* mmu_demap_page() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_DEMAP_PAGE - * ARG0: reserved, must be zero - * ARG1: reserved, must be zero - * ARG2: virtual address - * ARG3: mmu context - * ARG4: flags (HV_MMU_{IMMU,DMMU}) - * RET0: status - * ERRORS: EINVAL Invalid virutal address, context, or - * flags value - * ENOTSUPPORTED ARG0 or ARG1 is non-zero - * - * Demaps any page mapping of the given virtual address in the given - * mmu context for the current virtual CPU. Any virtually tagged - * caches are guaranteed to be kept consistent. The flags argument - * determines which TLB (instruction, or data, or both) participate in - * the operation. - * - * ARG0 and ARG1 are both reserved and must be set to zero. - */ -#define HV_FAST_MMU_DEMAP_PAGE 0x22 - -/* mmu_demap_ctx() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_DEMAP_CTX - * ARG0: reserved, must be zero - * ARG1: reserved, must be zero - * ARG2: mmu context - * ARG3: flags (HV_MMU_{IMMU,DMMU}) - * RET0: status - * ERRORS: EINVAL Invalid context or flags value - * ENOTSUPPORTED ARG0 or ARG1 is non-zero - * - * Demaps all non-permanent virtual page mappings previously specified - * for the given context for the current virtual CPU. Any virtual - * tagged caches are guaranteed to be kept consistent. The flags - * argument determines which TLB (instruction, or data, or both) - * participate in the operation. - * - * ARG0 and ARG1 are both reserved and must be set to zero. - */ -#define HV_FAST_MMU_DEMAP_CTX 0x23 - -/* mmu_demap_all() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_DEMAP_ALL - * ARG0: reserved, must be zero - * ARG1: reserved, must be zero - * ARG2: flags (HV_MMU_{IMMU,DMMU}) - * RET0: status - * ERRORS: EINVAL Invalid flags value - * ENOTSUPPORTED ARG0 or ARG1 is non-zero - * - * Demaps all non-permanent virtual page mappings previously specified - * for the current virtual CPU. Any virtual tagged caches are - * guaranteed to be kept consistent. The flags argument determines - * which TLB (instruction, or data, or both) participate in the - * operation. - * - * ARG0 and ARG1 are both reserved and must be set to zero. - */ -#define HV_FAST_MMU_DEMAP_ALL 0x24 - -#ifndef __ASSEMBLY__ -extern void sun4v_mmu_demap_all(void); -#endif - -/* mmu_map_perm_addr() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_MAP_PERM_ADDR - * ARG0: virtual address - * ARG1: reserved, must be zero - * ARG2: TTE - * ARG3: flags (HV_MMU_{IMMU,DMMU}) - * RET0: status - * ERRORS: EINVAL Invalid virutal address or flags value - * EBADPGSZ Invalid page size value - * ENORADDR Invalid real address in TTE - * ETOOMANY Too many mappings (max of 8 reached) - * - * Create a permanent mapping using the given TTE and virtual address - * for context 0 on the calling virtual CPU. A maximum of 8 such - * permanent mappings may be specified by privileged code. Mappings - * may be removed with mmu_unmap_perm_addr(). - * - * The behavior is undefined if a TTE with the valid bit clear is given. - * - * Note: This call is used to specify address space mappings for which - * privileged code does not expect to receive misses. For example, - * this mechanism can be used to map kernel nucleus code and data. - */ -#define HV_FAST_MMU_MAP_PERM_ADDR 0x25 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr, - unsigned long set_to_zero, - unsigned long tte, - unsigned long flags); -#endif - -/* mmu_fault_area_conf() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_FAULT_AREA_CONF - * ARG0: real address - * RET0: status - * RET1: previous mmu fault area real address - * ERRORS: ENORADDR Invalid real address - * EBADALIGN Invalid alignment for fault area - * - * Configure the MMU fault status area for the calling CPU. A 64-byte - * aligned real address specifies where MMU fault status information - * is placed. The return value is the previously specified area, or 0 - * for the first invocation. Specifying a fault area at real address - * 0 is not allowed. - */ -#define HV_FAST_MMU_FAULT_AREA_CONF 0x26 - -/* mmu_enable() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_ENABLE - * ARG0: enable flag - * ARG1: return target address - * RET0: status - * ERRORS: ENORADDR Invalid real address when disabling - * translation. - * EBADALIGN The return target address is not - * aligned to an instruction. - * EINVAL The enable flag request the current - * operating mode (e.g. disable if already - * disabled) - * - * Enable or disable virtual address translation for the calling CPU - * within the virtual machine domain. If the enable flag is zero, - * translation is disabled, any non-zero value will enable - * translation. - * - * When this function returns, the newly selected translation mode - * will be active. If the mmu is being enabled, then the return - * target address is a virtual address else it is a real address. - * - * Upon successful completion, control will be returned to the given - * return target address (ie. the cpu will jump to that address). On - * failure, the previous mmu mode remains and the trap simply returns - * as normal with the appropriate error code in RET0. - */ -#define HV_FAST_MMU_ENABLE 0x27 - -/* mmu_unmap_perm_addr() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_UNMAP_PERM_ADDR - * ARG0: virtual address - * ARG1: reserved, must be zero - * ARG2: flags (HV_MMU_{IMMU,DMMU}) - * RET0: status - * ERRORS: EINVAL Invalid virutal address or flags value - * ENOMAP Specified mapping was not found - * - * Demaps any permanent page mapping (established via - * mmu_map_perm_addr()) at the given virtual address for context 0 on - * the current virtual CPU. Any virtual tagged caches are guaranteed - * to be kept consistent. - */ -#define HV_FAST_MMU_UNMAP_PERM_ADDR 0x28 - -/* mmu_tsb_ctx0_info() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_TSB_CTX0_INFO - * ARG0: max TSBs - * ARG1: buffer pointer - * RET0: status - * RET1: number of TSBs - * ERRORS: EINVAL Supplied buffer is too small - * EBADALIGN The buffer pointer is badly aligned - * ENORADDR Invalid real address for buffer pointer - * - * Return the TSB configuration as previous defined by mmu_tsb_ctx0() - * into the provided buffer. The size of the buffer is given in ARG1 - * in terms of the number of TSB description entries. - * - * Upon return, RET1 always contains the number of TSB descriptions - * previously configured. If zero TSBs were configured, EOK is - * returned with RET1 containing 0. - */ -#define HV_FAST_MMU_TSB_CTX0_INFO 0x29 - -/* mmu_tsb_ctxnon0_info() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_TSB_CTXNON0_INFO - * ARG0: max TSBs - * ARG1: buffer pointer - * RET0: status - * RET1: number of TSBs - * ERRORS: EINVAL Supplied buffer is too small - * EBADALIGN The buffer pointer is badly aligned - * ENORADDR Invalid real address for buffer pointer - * - * Return the TSB configuration as previous defined by - * mmu_tsb_ctxnon0() into the provided buffer. The size of the buffer - * is given in ARG1 in terms of the number of TSB description entries. - * - * Upon return, RET1 always contains the number of TSB descriptions - * previously configured. If zero TSBs were configured, EOK is - * returned with RET1 containing 0. - */ -#define HV_FAST_MMU_TSB_CTXNON0_INFO 0x2a - -/* mmu_fault_area_info() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMU_FAULT_AREA_INFO - * RET0: status - * RET1: fault area real address - * ERRORS: No errors defined. - * - * Return the currently defined MMU fault status area for the current - * CPU. The real address of the fault status area is returned in - * RET1, or 0 is returned in RET1 if no fault status area is defined. - * - * Note: mmu_fault_area_conf() may be called with the return value (RET1) - * from this service if there is a need to save and restore the fault - * area for a cpu. - */ -#define HV_FAST_MMU_FAULT_AREA_INFO 0x2b - -/* Cache and Memory services. */ - -/* mem_scrub() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MEM_SCRUB - * ARG0: real address - * ARG1: length - * RET0: status - * RET1: length scrubbed - * ERRORS: ENORADDR Invalid real address - * EBADALIGN Start address or length are not correctly - * aligned - * EINVAL Length is zero - * - * Zero the memory contents in the range real address to real address - * plus length minus 1. Also, valid ECC will be generated for that - * memory address range. Scrubbing is started at the given real - * address, but may not scrub the entire given length. The actual - * length scrubbed will be returned in RET1. - * - * The real address and length must be aligned on an 8K boundary, or - * contain the start address and length from a sun4v error report. - * - * Note: There are two uses for this function. The first use is to block clear - * and initialize memory and the second is to scrub an u ncorrectable - * error reported via a resumable or non-resumable trap. The second - * use requires the arguments to be equal to the real address and length - * provided in a sun4v memory error report. - */ -#define HV_FAST_MEM_SCRUB 0x31 - -/* mem_sync() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MEM_SYNC - * ARG0: real address - * ARG1: length - * RET0: status - * RET1: length synced - * ERRORS: ENORADDR Invalid real address - * EBADALIGN Start address or length are not correctly - * aligned - * EINVAL Length is zero - * - * Force the next access within the real address to real address plus - * length minus 1 to be fetches from main system memory. Less than - * the given length may be synced, the actual amount synced is - * returned in RET1. The real address and length must be aligned on - * an 8K boundary. - */ -#define HV_FAST_MEM_SYNC 0x32 - -/* Time of day services. - * - * The hypervisor maintains the time of day on a per-domain basis. - * Changing the time of day in one domain does not affect the time of - * day on any other domain. - * - * Time is described by a single unsigned 64-bit word which is the - * number of seconds since the UNIX Epoch (00:00:00 UTC, January 1, - * 1970). - */ - -/* tod_get() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_TOD_GET - * RET0: status - * RET1: TOD - * ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable - * ENOTSUPPORTED If TOD not supported on this platform - * - * Return the current time of day. May block if TOD access is - * temporarily not possible. - */ -#define HV_FAST_TOD_GET 0x50 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_tod_get(unsigned long *time); -#endif - -/* tod_set() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_TOD_SET - * ARG0: TOD - * RET0: status - * ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable - * ENOTSUPPORTED If TOD not supported on this platform - * - * The current time of day is set to the value specified in ARG0. May - * block if TOD access is temporarily not possible. - */ -#define HV_FAST_TOD_SET 0x51 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_tod_set(unsigned long time); -#endif - -/* Console services */ - -/* con_getchar() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CONS_GETCHAR - * RET0: status - * RET1: character - * ERRORS: EWOULDBLOCK No character available. - * - * Returns a character from the console device. If no character is - * available then an EWOULDBLOCK error is returned. If a character is - * available, then the returned status is EOK and the character value - * is in RET1. - * - * A virtual BREAK is represented by the 64-bit value -1. - * - * A virtual HUP signal is represented by the 64-bit value -2. - */ -#define HV_FAST_CONS_GETCHAR 0x60 - -/* con_putchar() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CONS_PUTCHAR - * ARG0: character - * RET0: status - * ERRORS: EINVAL Illegal character - * EWOULDBLOCK Output buffer currently full, would block - * - * Send a character to the console device. Only character values - * between 0 and 255 may be used. Values outside this range are - * invalid except for the 64-bit value -1 which is used to send a - * virtual BREAK. - */ -#define HV_FAST_CONS_PUTCHAR 0x61 - -/* con_read() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CONS_READ - * ARG0: buffer real address - * ARG1: buffer size in bytes - * RET0: status - * RET1: bytes read or BREAK or HUP - * ERRORS: EWOULDBLOCK No character available. - * - * Reads characters into a buffer from the console device. If no - * character is available then an EWOULDBLOCK error is returned. - * If a character is available, then the returned status is EOK - * and the number of bytes read into the given buffer is provided - * in RET1. - * - * A virtual BREAK is represented by the 64-bit RET1 value -1. - * - * A virtual HUP signal is represented by the 64-bit RET1 value -2. - * - * If BREAK or HUP are indicated, no bytes were read into buffer. - */ -#define HV_FAST_CONS_READ 0x62 - -/* con_write() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_CONS_WRITE - * ARG0: buffer real address - * ARG1: buffer size in bytes - * RET0: status - * RET1: bytes written - * ERRORS: EWOULDBLOCK Output buffer currently full, would block - * - * Send a characters in buffer to the console device. Breaks must be - * sent using con_putchar(). - */ -#define HV_FAST_CONS_WRITE 0x63 - -#ifndef __ASSEMBLY__ -extern long sun4v_con_getchar(long *status); -extern long sun4v_con_putchar(long c); -extern long sun4v_con_read(unsigned long buffer, - unsigned long size, - unsigned long *bytes_read); -extern unsigned long sun4v_con_write(unsigned long buffer, - unsigned long size, - unsigned long *bytes_written); -#endif - -/* mach_set_soft_state() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MACH_SET_SOFT_STATE - * ARG0: software state - * ARG1: software state description pointer - * RET0: status - * ERRORS: EINVAL software state not valid or software state - * description is not NULL terminated - * ENORADDR software state description pointer is not a - * valid real address - * EBADALIGNED software state description is not correctly - * aligned - * - * This allows the guest to report it's soft state to the hypervisor. There - * are two primary components to this state. The first part states whether - * the guest software is running or not. The second containts optional - * details specific to the software. - * - * The software state argument is defined below in HV_SOFT_STATE_*, and - * indicates whether the guest is operating normally or in a transitional - * state. - * - * The software state description argument is a real address of a data buffer - * of size 32-bytes aligned on a 32-byte boundary. It is treated as a NULL - * terminated 7-bit ASCII string of up to 31 characters not including the - * NULL termination. - */ -#define HV_FAST_MACH_SET_SOFT_STATE 0x70 -#define HV_SOFT_STATE_NORMAL 0x01 -#define HV_SOFT_STATE_TRANSITION 0x02 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_mach_set_soft_state(unsigned long soft_state, - unsigned long msg_string_ra); -#endif - -/* mach_get_soft_state() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MACH_GET_SOFT_STATE - * ARG0: software state description pointer - * RET0: status - * RET1: software state - * ERRORS: ENORADDR software state description pointer is not a - * valid real address - * EBADALIGNED software state description is not correctly - * aligned - * - * Retrieve the current value of the guest's software state. The rules - * for the software state pointer are the same as for mach_set_soft_state() - * above. - */ -#define HV_FAST_MACH_GET_SOFT_STATE 0x71 - -/* svc_send() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_SVC_SEND - * ARG0: service ID - * ARG1: buffer real address - * ARG2: buffer size - * RET0: STATUS - * RET1: sent_bytes - * - * Be careful, all output registers are clobbered by this operation, - * so for example it is not possible to save away a value in %o4 - * across the trap. - */ -#define HV_FAST_SVC_SEND 0x80 - -/* svc_recv() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_SVC_RECV - * ARG0: service ID - * ARG1: buffer real address - * ARG2: buffer size - * RET0: STATUS - * RET1: recv_bytes - * - * Be careful, all output registers are clobbered by this operation, - * so for example it is not possible to save away a value in %o4 - * across the trap. - */ -#define HV_FAST_SVC_RECV 0x81 - -/* svc_getstatus() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_SVC_GETSTATUS - * ARG0: service ID - * RET0: STATUS - * RET1: status bits - */ -#define HV_FAST_SVC_GETSTATUS 0x82 - -/* svc_setstatus() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_SVC_SETSTATUS - * ARG0: service ID - * ARG1: bits to set - * RET0: STATUS - */ -#define HV_FAST_SVC_SETSTATUS 0x83 - -/* svc_clrstatus() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_SVC_CLRSTATUS - * ARG0: service ID - * ARG1: bits to clear - * RET0: STATUS - */ -#define HV_FAST_SVC_CLRSTATUS 0x84 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_svc_send(unsigned long svc_id, - unsigned long buffer, - unsigned long buffer_size, - unsigned long *sent_bytes); -extern unsigned long sun4v_svc_recv(unsigned long svc_id, - unsigned long buffer, - unsigned long buffer_size, - unsigned long *recv_bytes); -extern unsigned long sun4v_svc_getstatus(unsigned long svc_id, - unsigned long *status_bits); -extern unsigned long sun4v_svc_setstatus(unsigned long svc_id, - unsigned long status_bits); -extern unsigned long sun4v_svc_clrstatus(unsigned long svc_id, - unsigned long status_bits); -#endif - -/* Trap trace services. - * - * The hypervisor provides a trap tracing capability for privileged - * code running on each virtual CPU. Privileged code provides a - * round-robin trap trace queue within which the hypervisor writes - * 64-byte entries detailing hyperprivileged traps taken n behalf of - * privileged code. This is provided as a debugging capability for - * privileged code. - * - * The trap trace control structure is 64-bytes long and placed at the - * start (offset 0) of the trap trace buffer, and is described as - * follows: - */ -#ifndef __ASSEMBLY__ -struct hv_trap_trace_control { - unsigned long head_offset; - unsigned long tail_offset; - unsigned long __reserved[0x30 / sizeof(unsigned long)]; -}; -#endif -#define HV_TRAP_TRACE_CTRL_HEAD_OFFSET 0x00 -#define HV_TRAP_TRACE_CTRL_TAIL_OFFSET 0x08 - -/* The head offset is the offset of the most recently completed entry - * in the trap-trace buffer. The tail offset is the offset of the - * next entry to be written. The control structure is owned and - * modified by the hypervisor. A guest may not modify the control - * structure contents. Attempts to do so will result in undefined - * behavior for the guest. - * - * Each trap trace buffer entry is layed out as follows: - */ -#ifndef __ASSEMBLY__ -struct hv_trap_trace_entry { - unsigned char type; /* Hypervisor or guest entry? */ - unsigned char hpstate; /* Hyper-privileged state */ - unsigned char tl; /* Trap level */ - unsigned char gl; /* Global register level */ - unsigned short tt; /* Trap type */ - unsigned short tag; /* Extended trap identifier */ - unsigned long tstate; /* Trap state */ - unsigned long tick; /* Tick */ - unsigned long tpc; /* Trap PC */ - unsigned long f1; /* Entry specific */ - unsigned long f2; /* Entry specific */ - unsigned long f3; /* Entry specific */ - unsigned long f4; /* Entry specific */ -}; -#endif -#define HV_TRAP_TRACE_ENTRY_TYPE 0x00 -#define HV_TRAP_TRACE_ENTRY_HPSTATE 0x01 -#define HV_TRAP_TRACE_ENTRY_TL 0x02 -#define HV_TRAP_TRACE_ENTRY_GL 0x03 -#define HV_TRAP_TRACE_ENTRY_TT 0x04 -#define HV_TRAP_TRACE_ENTRY_TAG 0x06 -#define HV_TRAP_TRACE_ENTRY_TSTATE 0x08 -#define HV_TRAP_TRACE_ENTRY_TICK 0x10 -#define HV_TRAP_TRACE_ENTRY_TPC 0x18 -#define HV_TRAP_TRACE_ENTRY_F1 0x20 -#define HV_TRAP_TRACE_ENTRY_F2 0x28 -#define HV_TRAP_TRACE_ENTRY_F3 0x30 -#define HV_TRAP_TRACE_ENTRY_F4 0x38 - -/* The type field is encoded as follows. */ -#define HV_TRAP_TYPE_UNDEF 0x00 /* Entry content undefined */ -#define HV_TRAP_TYPE_HV 0x01 /* Hypervisor trap entry */ -#define HV_TRAP_TYPE_GUEST 0xff /* Added via ttrace_addentry() */ - -/* ttrace_buf_conf() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_TTRACE_BUF_CONF - * ARG0: real address - * ARG1: number of entries - * RET0: status - * RET1: number of entries - * ERRORS: ENORADDR Invalid real address - * EINVAL Size is too small - * EBADALIGN Real address not aligned on 64-byte boundary - * - * Requests hypervisor trap tracing and declares a virtual CPU's trap - * trace buffer to the hypervisor. The real address supplies the real - * base address of the trap trace queue and must be 64-byte aligned. - * Specifying a value of 0 for the number of entries disables trap - * tracing for the calling virtual CPU. The buffer allocated must be - * sized for a power of two number of 64-byte trap trace entries plus - * an initial 64-byte control structure. - * - * This may be invoked any number of times so that a virtual CPU may - * relocate a trap trace buffer or create "snapshots" of information. - * - * If the real address is illegal or badly aligned, then trap tracing - * is disabled and an error is returned. - * - * Upon failure with EINVAL, this service call returns in RET1 the - * minimum number of buffer entries required. Upon other failures - * RET1 is undefined. - */ -#define HV_FAST_TTRACE_BUF_CONF 0x90 - -/* ttrace_buf_info() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_TTRACE_BUF_INFO - * RET0: status - * RET1: real address - * RET2: size - * ERRORS: None defined. - * - * Returns the size and location of the previously declared trap-trace - * buffer. In the event that no buffer was previously defined, or the - * buffer is disabled, this call will return a size of zero bytes. - */ -#define HV_FAST_TTRACE_BUF_INFO 0x91 - -/* ttrace_enable() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_TTRACE_ENABLE - * ARG0: enable - * RET0: status - * RET1: previous enable state - * ERRORS: EINVAL No trap trace buffer currently defined - * - * Enable or disable trap tracing, and return the previous enabled - * state in RET1. Future systems may define various flags for the - * enable argument (ARG0), for the moment a guest should pass - * "(uint64_t) -1" to enable, and "(uint64_t) 0" to disable all - * tracing - which will ensure future compatability. - */ -#define HV_FAST_TTRACE_ENABLE 0x92 - -/* ttrace_freeze() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_TTRACE_FREEZE - * ARG0: freeze - * RET0: status - * RET1: previous freeze state - * ERRORS: EINVAL No trap trace buffer currently defined - * - * Freeze or unfreeze trap tracing, returning the previous freeze - * state in RET1. A guest should pass a non-zero value to freeze and - * a zero value to unfreeze all tracing. The returned previous state - * is 0 for not frozen and 1 for frozen. - */ -#define HV_FAST_TTRACE_FREEZE 0x93 - -/* ttrace_addentry() - * TRAP: HV_TTRACE_ADDENTRY_TRAP - * ARG0: tag (16-bits) - * ARG1: data word 0 - * ARG2: data word 1 - * ARG3: data word 2 - * ARG4: data word 3 - * RET0: status - * ERRORS: EINVAL No trap trace buffer currently defined - * - * Add an entry to the trap trace buffer. Upon return only ARG0/RET0 - * is modified - none of the other registers holding arguments are - * volatile across this hypervisor service. - */ - -/* Core dump services. - * - * Since the hypervisor viraulizes and thus obscures a lot of the - * physical machine layout and state, traditional OS crash dumps can - * be difficult to diagnose especially when the problem is a - * configuration error of some sort. - * - * The dump services provide an opaque buffer into which the - * hypervisor can place it's internal state in order to assist in - * debugging such situations. The contents are opaque and extremely - * platform and hypervisor implementation specific. The guest, during - * a core dump, requests that the hypervisor update any information in - * the dump buffer in preparation to being dumped as part of the - * domain's memory image. - */ - -/* dump_buf_update() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_DUMP_BUF_UPDATE - * ARG0: real address - * ARG1: size - * RET0: status - * RET1: required size of dump buffer - * ERRORS: ENORADDR Invalid real address - * EBADALIGN Real address is not aligned on a 64-byte - * boundary - * EINVAL Size is non-zero but less than minimum size - * required - * ENOTSUPPORTED Operation not supported on current logical - * domain - * - * Declare a domain dump buffer to the hypervisor. The real address - * provided for the domain dump buffer must be 64-byte aligned. The - * size specifies the size of the dump buffer and may be larger than - * the minimum size specified in the machine description. The - * hypervisor will fill the dump buffer with opaque data. - * - * Note: A guest may elect to include dump buffer contents as part of a crash - * dump to assist with debugging. This function may be called any number - * of times so that a guest may relocate a dump buffer, or create - * "snapshots" of any dump-buffer information. Each call to - * dump_buf_update() atomically declares the new dump buffer to the - * hypervisor. - * - * A specified size of 0 unconfigures the dump buffer. If the real - * address is illegal or badly aligned, then any currently active dump - * buffer is disabled and an error is returned. - * - * In the event that the call fails with EINVAL, RET1 contains the - * minimum size requires by the hypervisor for a valid dump buffer. - */ -#define HV_FAST_DUMP_BUF_UPDATE 0x94 - -/* dump_buf_info() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_DUMP_BUF_INFO - * RET0: status - * RET1: real address of current dump buffer - * RET2: size of current dump buffer - * ERRORS: No errors defined. - * - * Return the currently configures dump buffer description. A - * returned size of 0 bytes indicates an undefined dump buffer. In - * this case the return address in RET1 is undefined. - */ -#define HV_FAST_DUMP_BUF_INFO 0x95 - -/* Device interrupt services. - * - * Device interrupts are allocated to system bus bridges by the hypervisor, - * and described to OBP in the machine description. OBP then describes - * these interrupts to the OS via properties in the device tree. - * - * Terminology: - * - * cpuid Unique opaque value which represents a target cpu. - * - * devhandle Device handle. It uniquely identifies a device, and - * consistes of the lower 28-bits of the hi-cell of the - * first entry of the device's "reg" property in the - * OBP device tree. - * - * devino Device interrupt number. Specifies the relative - * interrupt number within the device. The unique - * combination of devhandle and devino are used to - * identify a specific device interrupt. - * - * Note: The devino value is the same as the values in the - * "interrupts" property or "interrupt-map" property - * in the OBP device tree for that device. - * - * sysino System interrupt number. A 64-bit unsigned interger - * representing a unique interrupt within a virtual - * machine. - * - * intr_state A flag representing the interrupt state for a given - * sysino. The state values are defined below. - * - * intr_enabled A flag representing the 'enabled' state for a given - * sysino. The enable values are defined below. - */ - -#define HV_INTR_STATE_IDLE 0 /* Nothing pending */ -#define HV_INTR_STATE_RECEIVED 1 /* Interrupt received by hardware */ -#define HV_INTR_STATE_DELIVERED 2 /* Interrupt delivered to queue */ - -#define HV_INTR_DISABLED 0 /* sysino not enabled */ -#define HV_INTR_ENABLED 1 /* sysino enabled */ - -/* intr_devino_to_sysino() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_INTR_DEVINO2SYSINO - * ARG0: devhandle - * ARG1: devino - * RET0: status - * RET1: sysino - * ERRORS: EINVAL Invalid devhandle/devino - * - * Converts a device specific interrupt number of the given - * devhandle/devino into a system specific ino (sysino). - */ -#define HV_FAST_INTR_DEVINO2SYSINO 0xa0 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_devino_to_sysino(unsigned long devhandle, - unsigned long devino); -#endif - -/* intr_getenabled() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_INTR_GETENABLED - * ARG0: sysino - * RET0: status - * RET1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) - * ERRORS: EINVAL Invalid sysino - * - * Returns interrupt enabled state in RET1 for the interrupt defined - * by the given sysino. - */ -#define HV_FAST_INTR_GETENABLED 0xa1 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_intr_getenabled(unsigned long sysino); -#endif - -/* intr_setenabled() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_INTR_SETENABLED - * ARG0: sysino - * ARG1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) - * RET0: status - * ERRORS: EINVAL Invalid sysino or intr_enabled value - * - * Set the 'enabled' state of the interrupt sysino. - */ -#define HV_FAST_INTR_SETENABLED 0xa2 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_intr_setenabled(unsigned long sysino, unsigned long intr_enabled); -#endif - -/* intr_getstate() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_INTR_GETSTATE - * ARG0: sysino - * RET0: status - * RET1: intr_state (HV_INTR_STATE_*) - * ERRORS: EINVAL Invalid sysino - * - * Returns current state of the interrupt defined by the given sysino. - */ -#define HV_FAST_INTR_GETSTATE 0xa3 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_intr_getstate(unsigned long sysino); -#endif - -/* intr_setstate() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_INTR_SETSTATE - * ARG0: sysino - * ARG1: intr_state (HV_INTR_STATE_*) - * RET0: status - * ERRORS: EINVAL Invalid sysino or intr_state value - * - * Sets the current state of the interrupt described by the given sysino - * value. - * - * Note: Setting the state to HV_INTR_STATE_IDLE clears any pending - * interrupt for sysino. - */ -#define HV_FAST_INTR_SETSTATE 0xa4 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_intr_setstate(unsigned long sysino, unsigned long intr_state); -#endif - -/* intr_gettarget() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_INTR_GETTARGET - * ARG0: sysino - * RET0: status - * RET1: cpuid - * ERRORS: EINVAL Invalid sysino - * - * Returns CPU that is the current target of the interrupt defined by - * the given sysino. The CPU value returned is undefined if the target - * has not been set via intr_settarget(). - */ -#define HV_FAST_INTR_GETTARGET 0xa5 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_intr_gettarget(unsigned long sysino); -#endif - -/* intr_settarget() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_INTR_SETTARGET - * ARG0: sysino - * ARG1: cpuid - * RET0: status - * ERRORS: EINVAL Invalid sysino - * ENOCPU Invalid cpuid - * - * Set the target CPU for the interrupt defined by the given sysino. - */ -#define HV_FAST_INTR_SETTARGET 0xa6 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_intr_settarget(unsigned long sysino, unsigned long cpuid); -#endif - -/* vintr_get_cookie() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_GET_COOKIE - * ARG0: device handle - * ARG1: device ino - * RET0: status - * RET1: cookie - */ -#define HV_FAST_VINTR_GET_COOKIE 0xa7 - -/* vintr_set_cookie() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_SET_COOKIE - * ARG0: device handle - * ARG1: device ino - * ARG2: cookie - * RET0: status - */ -#define HV_FAST_VINTR_SET_COOKIE 0xa8 - -/* vintr_get_valid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_GET_VALID - * ARG0: device handle - * ARG1: device ino - * RET0: status - * RET1: valid state - */ -#define HV_FAST_VINTR_GET_VALID 0xa9 - -/* vintr_set_valid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_SET_VALID - * ARG0: device handle - * ARG1: device ino - * ARG2: valid state - * RET0: status - */ -#define HV_FAST_VINTR_SET_VALID 0xaa - -/* vintr_get_state() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_GET_STATE - * ARG0: device handle - * ARG1: device ino - * RET0: status - * RET1: state - */ -#define HV_FAST_VINTR_GET_STATE 0xab - -/* vintr_set_state() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_SET_STATE - * ARG0: device handle - * ARG1: device ino - * ARG2: state - * RET0: status - */ -#define HV_FAST_VINTR_SET_STATE 0xac - -/* vintr_get_target() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_GET_TARGET - * ARG0: device handle - * ARG1: device ino - * RET0: status - * RET1: cpuid - */ -#define HV_FAST_VINTR_GET_TARGET 0xad - -/* vintr_set_target() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_VINTR_SET_TARGET - * ARG0: device handle - * ARG1: device ino - * ARG2: cpuid - * RET0: status - */ -#define HV_FAST_VINTR_SET_TARGET 0xae - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_vintr_get_cookie(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long *cookie); -extern unsigned long sun4v_vintr_set_cookie(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long cookie); -extern unsigned long sun4v_vintr_get_valid(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long *valid); -extern unsigned long sun4v_vintr_set_valid(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long valid); -extern unsigned long sun4v_vintr_get_state(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long *state); -extern unsigned long sun4v_vintr_set_state(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long state); -extern unsigned long sun4v_vintr_get_target(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long *cpuid); -extern unsigned long sun4v_vintr_set_target(unsigned long dev_handle, - unsigned long dev_ino, - unsigned long cpuid); -#endif - -/* PCI IO services. - * - * See the terminology descriptions in the device interrupt services - * section above as those apply here too. Here are terminology - * definitions specific to these PCI IO services: - * - * tsbnum TSB number. Indentifies which io-tsb is used. - * For this version of the specification, tsbnum - * must be zero. - * - * tsbindex TSB index. Identifies which entry in the TSB - * is used. The first entry is zero. - * - * tsbid A 64-bit aligned data structure which contains - * a tsbnum and a tsbindex. Bits 63:32 contain the - * tsbnum and bits 31:00 contain the tsbindex. - * - * Use the HV_PCI_TSBID() macro to construct such - * values. - * - * io_attributes IO attributes for IOMMU mappings. One of more - * of the attritbute bits are stores in a 64-bit - * value. The values are defined below. - * - * r_addr 64-bit real address - * - * pci_device PCI device address. A PCI device address identifies - * a specific device on a specific PCI bus segment. - * A PCI device address ia a 32-bit unsigned integer - * with the following format: - * - * 00000000.bbbbbbbb.dddddfff.00000000 - * - * Use the HV_PCI_DEVICE_BUILD() macro to construct - * such values. - * - * pci_config_offset - * PCI configureation space offset. For conventional - * PCI a value between 0 and 255. For extended - * configuration space, a value between 0 and 4095. - * - * Note: For PCI configuration space accesses, the offset - * must be aligned to the access size. - * - * error_flag A return value which specifies if the action succeeded - * or failed. 0 means no error, non-0 means some error - * occurred while performing the service. - * - * io_sync_direction - * Direction definition for pci_dma_sync(), defined - * below in HV_PCI_SYNC_*. - * - * io_page_list A list of io_page_addresses, an io_page_address is - * a real address. - * - * io_page_list_p A pointer to an io_page_list. - * - * "size based byte swap" - Some functions do size based byte swapping - * which allows sw to access pointers and - * counters in native form when the processor - * operates in a different endianness than the - * IO bus. Size-based byte swapping converts a - * multi-byte field between big-endian and - * little-endian format. - */ - -#define HV_PCI_MAP_ATTR_READ 0x01 -#define HV_PCI_MAP_ATTR_WRITE 0x02 - -#define HV_PCI_DEVICE_BUILD(b,d,f) \ - ((((b) & 0xff) << 16) | \ - (((d) & 0x1f) << 11) | \ - (((f) & 0x07) << 8)) - -#define HV_PCI_TSBID(__tsb_num, __tsb_index) \ - ((((u64)(__tsb_num)) << 32UL) | ((u64)(__tsb_index))) - -#define HV_PCI_SYNC_FOR_DEVICE 0x01 -#define HV_PCI_SYNC_FOR_CPU 0x02 - -/* pci_iommu_map() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_IOMMU_MAP - * ARG0: devhandle - * ARG1: tsbid - * ARG2: #ttes - * ARG3: io_attributes - * ARG4: io_page_list_p - * RET0: status - * RET1: #ttes mapped - * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex/io_attributes - * EBADALIGN Improperly aligned real address - * ENORADDR Invalid real address - * - * Create IOMMU mappings in the sun4v device defined by the given - * devhandle. The mappings are created in the TSB defined by the - * tsbnum component of the given tsbid. The first mapping is created - * in the TSB i ndex defined by the tsbindex component of the given tsbid. - * The call creates up to #ttes mappings, the first one at tsbnum, tsbindex, - * the second at tsbnum, tsbindex + 1, etc. - * - * All mappings are created with the attributes defined by the io_attributes - * argument. The page mapping addresses are described in the io_page_list - * defined by the given io_page_list_p, which is a pointer to the io_page_list. - * The first entry in the io_page_list is the address for the first iotte, the - * 2nd for the 2nd iotte, and so on. - * - * Each io_page_address in the io_page_list must be appropriately aligned. - * #ttes must be greater than zero. For this version of the spec, the tsbnum - * component of the given tsbid must be zero. - * - * Returns the actual number of mappings creates, which may be less than - * or equal to the argument #ttes. If the function returns a value which - * is less than the #ttes, the caller may continus to call the function with - * an updated tsbid, #ttes, io_page_list_p arguments until all pages are - * mapped. - * - * Note: This function does not imply an iotte cache flush. The guest must - * demap an entry before re-mapping it. - */ -#define HV_FAST_PCI_IOMMU_MAP 0xb0 - -/* pci_iommu_demap() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_IOMMU_DEMAP - * ARG0: devhandle - * ARG1: tsbid - * ARG2: #ttes - * RET0: status - * RET1: #ttes demapped - * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex - * - * Demap and flush IOMMU mappings in the device defined by the given - * devhandle. Demaps up to #ttes entries in the TSB defined by the tsbnum - * component of the given tsbid, starting at the TSB index defined by the - * tsbindex component of the given tsbid. - * - * For this version of the spec, the tsbnum of the given tsbid must be zero. - * #ttes must be greater than zero. - * - * Returns the actual number of ttes demapped, which may be less than or equal - * to the argument #ttes. If #ttes demapped is less than #ttes, the caller - * may continue to call this function with updated tsbid and #ttes arguments - * until all pages are demapped. - * - * Note: Entries do not have to be mapped to be demapped. A demap of an - * unmapped page will flush the entry from the tte cache. - */ -#define HV_FAST_PCI_IOMMU_DEMAP 0xb1 - -/* pci_iommu_getmap() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_IOMMU_GETMAP - * ARG0: devhandle - * ARG1: tsbid - * RET0: status - * RET1: io_attributes - * RET2: real address - * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex - * ENOMAP Mapping is not valid, no translation exists - * - * Read and return the mapping in the device described by the given devhandle - * and tsbid. If successful, the io_attributes shall be returned in RET1 - * and the page address of the mapping shall be returned in RET2. - * - * For this version of the spec, the tsbnum component of the given tsbid - * must be zero. - */ -#define HV_FAST_PCI_IOMMU_GETMAP 0xb2 - -/* pci_iommu_getbypass() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_IOMMU_GETBYPASS - * ARG0: devhandle - * ARG1: real address - * ARG2: io_attributes - * RET0: status - * RET1: io_addr - * ERRORS: EINVAL Invalid devhandle/io_attributes - * ENORADDR Invalid real address - * ENOTSUPPORTED Function not supported in this implementation. - * - * Create a "special" mapping in the device described by the given devhandle, - * for the given real address and attributes. Return the IO address in RET1 - * if successful. - */ -#define HV_FAST_PCI_IOMMU_GETBYPASS 0xb3 - -/* pci_config_get() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_CONFIG_GET - * ARG0: devhandle - * ARG1: pci_device - * ARG2: pci_config_offset - * ARG3: size - * RET0: status - * RET1: error_flag - * RET2: data - * ERRORS: EINVAL Invalid devhandle/pci_device/offset/size - * EBADALIGN pci_config_offset not size aligned - * ENOACCESS Access to this offset is not permitted - * - * Read PCI configuration space for the adapter described by the given - * devhandle. Read size (1, 2, or 4) bytes of data from the given - * pci_device, at pci_config_offset from the beginning of the device's - * configuration space. If there was no error, RET1 is set to zero and - * RET2 is set to the data read. Insignificant bits in RET2 are not - * guarenteed to have any specific value and therefore must be ignored. - * - * The data returned in RET2 is size based byte swapped. - * - * If an error occurs during the read, set RET1 to a non-zero value. The - * given pci_config_offset must be 'size' aligned. - */ -#define HV_FAST_PCI_CONFIG_GET 0xb4 - -/* pci_config_put() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_CONFIG_PUT - * ARG0: devhandle - * ARG1: pci_device - * ARG2: pci_config_offset - * ARG3: size - * ARG4: data - * RET0: status - * RET1: error_flag - * ERRORS: EINVAL Invalid devhandle/pci_device/offset/size - * EBADALIGN pci_config_offset not size aligned - * ENOACCESS Access to this offset is not permitted - * - * Write PCI configuration space for the adapter described by the given - * devhandle. Write size (1, 2, or 4) bytes of data in a single operation, - * at pci_config_offset from the beginning of the device's configuration - * space. The data argument contains the data to be written to configuration - * space. Prior to writing, the data is size based byte swapped. - * - * If an error occurs during the write access, do not generate an error - * report, do set RET1 to a non-zero value. Otherwise RET1 is zero. - * The given pci_config_offset must be 'size' aligned. - * - * This function is permitted to read from offset zero in the configuration - * space described by the given pci_device if necessary to ensure that the - * write access to config space completes. - */ -#define HV_FAST_PCI_CONFIG_PUT 0xb5 - -/* pci_peek() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_PEEK - * ARG0: devhandle - * ARG1: real address - * ARG2: size - * RET0: status - * RET1: error_flag - * RET2: data - * ERRORS: EINVAL Invalid devhandle or size - * EBADALIGN Improperly aligned real address - * ENORADDR Bad real address - * ENOACCESS Guest access prohibited - * - * Attempt to read the IO address given by the given devhandle, real address, - * and size. Size must be 1, 2, 4, or 8. The read is performed as a single - * access operation using the given size. If an error occurs when reading - * from the given location, do not generate an error report, but return a - * non-zero value in RET1. If the read was successful, return zero in RET1 - * and return the actual data read in RET2. The data returned is size based - * byte swapped. - * - * Non-significant bits in RET2 are not guarenteed to have any specific value - * and therefore must be ignored. If RET1 is returned as non-zero, the data - * value is not guarenteed to have any specific value and should be ignored. - * - * The caller must have permission to read from the given devhandle, real - * address, which must be an IO address. The argument real address must be a - * size aligned address. - * - * The hypervisor implementation of this function must block access to any - * IO address that the guest does not have explicit permission to access. - */ -#define HV_FAST_PCI_PEEK 0xb6 - -/* pci_poke() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_POKE - * ARG0: devhandle - * ARG1: real address - * ARG2: size - * ARG3: data - * ARG4: pci_device - * RET0: status - * RET1: error_flag - * ERRORS: EINVAL Invalid devhandle, size, or pci_device - * EBADALIGN Improperly aligned real address - * ENORADDR Bad real address - * ENOACCESS Guest access prohibited - * ENOTSUPPORTED Function is not supported by implementation - * - * Attempt to write data to the IO address given by the given devhandle, - * real address, and size. Size must be 1, 2, 4, or 8. The write is - * performed as a single access operation using the given size. Prior to - * writing the data is size based swapped. - * - * If an error occurs when writing to the given location, do not generate an - * error report, but return a non-zero value in RET1. If the write was - * successful, return zero in RET1. - * - * pci_device describes the configuration address of the device being - * written to. The implementation may safely read from offset 0 with - * the configuration space of the device described by devhandle and - * pci_device in order to guarantee that the write portion of the operation - * completes - * - * Any error that occurs due to the read shall be reported using the normal - * error reporting mechanisms .. the read error is not suppressed. - * - * The caller must have permission to write to the given devhandle, real - * address, which must be an IO address. The argument real address must be a - * size aligned address. The caller must have permission to read from - * the given devhandle, pci_device cofiguration space offset 0. - * - * The hypervisor implementation of this function must block access to any - * IO address that the guest does not have explicit permission to access. - */ -#define HV_FAST_PCI_POKE 0xb7 - -/* pci_dma_sync() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_DMA_SYNC - * ARG0: devhandle - * ARG1: real address - * ARG2: size - * ARG3: io_sync_direction - * RET0: status - * RET1: #synced - * ERRORS: EINVAL Invalid devhandle or io_sync_direction - * ENORADDR Bad real address - * - * Synchronize a memory region described by the given real address and size, - * for the device defined by the given devhandle using the direction(s) - * defined by the given io_sync_direction. The argument size is the size of - * the memory region in bytes. - * - * Return the actual number of bytes synchronized in the return value #synced, - * which may be less than or equal to the argument size. If the return - * value #synced is less than size, the caller must continue to call this - * function with updated real address and size arguments until the entire - * memory region is synchronized. - */ -#define HV_FAST_PCI_DMA_SYNC 0xb8 - -/* PCI MSI services. */ - -#define HV_MSITYPE_MSI32 0x00 -#define HV_MSITYPE_MSI64 0x01 - -#define HV_MSIQSTATE_IDLE 0x00 -#define HV_MSIQSTATE_ERROR 0x01 - -#define HV_MSIQ_INVALID 0x00 -#define HV_MSIQ_VALID 0x01 - -#define HV_MSISTATE_IDLE 0x00 -#define HV_MSISTATE_DELIVERED 0x01 - -#define HV_MSIVALID_INVALID 0x00 -#define HV_MSIVALID_VALID 0x01 - -#define HV_PCIE_MSGTYPE_PME_MSG 0x18 -#define HV_PCIE_MSGTYPE_PME_ACK_MSG 0x1b -#define HV_PCIE_MSGTYPE_CORR_MSG 0x30 -#define HV_PCIE_MSGTYPE_NONFATAL_MSG 0x31 -#define HV_PCIE_MSGTYPE_FATAL_MSG 0x33 - -#define HV_MSG_INVALID 0x00 -#define HV_MSG_VALID 0x01 - -/* pci_msiq_conf() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_CONF - * ARG0: devhandle - * ARG1: msiqid - * ARG2: real address - * ARG3: number of entries - * RET0: status - * ERRORS: EINVAL Invalid devhandle, msiqid or nentries - * EBADALIGN Improperly aligned real address - * ENORADDR Bad real address - * - * Configure the MSI queue given by the devhandle and msiqid arguments, - * and to be placed at the given real address and be of the given - * number of entries. The real address must be aligned exactly to match - * the queue size. Each queue entry is 64-bytes long, so f.e. a 32 entry - * queue must be aligned on a 2048 byte real address boundary. The MSI-EQ - * Head and Tail are initialized so that the MSI-EQ is 'empty'. - * - * Implementation Note: Certain implementations have fixed sized queues. In - * that case, number of entries must contain the correct - * value. - */ -#define HV_FAST_PCI_MSIQ_CONF 0xc0 - -/* pci_msiq_info() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_INFO - * ARG0: devhandle - * ARG1: msiqid - * RET0: status - * RET1: real address - * RET2: number of entries - * ERRORS: EINVAL Invalid devhandle or msiqid - * - * Return the configuration information for the MSI queue described - * by the given devhandle and msiqid. The base address of the queue - * is returned in ARG1 and the number of entries is returned in ARG2. - * If the queue is unconfigured, the real address is undefined and the - * number of entries will be returned as zero. - */ -#define HV_FAST_PCI_MSIQ_INFO 0xc1 - -/* pci_msiq_getvalid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_GETVALID - * ARG0: devhandle - * ARG1: msiqid - * RET0: status - * RET1: msiqvalid (HV_MSIQ_VALID or HV_MSIQ_INVALID) - * ERRORS: EINVAL Invalid devhandle or msiqid - * - * Get the valid state of the MSI-EQ described by the given devhandle and - * msiqid. - */ -#define HV_FAST_PCI_MSIQ_GETVALID 0xc2 - -/* pci_msiq_setvalid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_SETVALID - * ARG0: devhandle - * ARG1: msiqid - * ARG2: msiqvalid (HV_MSIQ_VALID or HV_MSIQ_INVALID) - * RET0: status - * ERRORS: EINVAL Invalid devhandle or msiqid or msiqvalid - * value or MSI EQ is uninitialized - * - * Set the valid state of the MSI-EQ described by the given devhandle and - * msiqid to the given msiqvalid. - */ -#define HV_FAST_PCI_MSIQ_SETVALID 0xc3 - -/* pci_msiq_getstate() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_GETSTATE - * ARG0: devhandle - * ARG1: msiqid - * RET0: status - * RET1: msiqstate (HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR) - * ERRORS: EINVAL Invalid devhandle or msiqid - * - * Get the state of the MSI-EQ described by the given devhandle and - * msiqid. - */ -#define HV_FAST_PCI_MSIQ_GETSTATE 0xc4 - -/* pci_msiq_getvalid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_GETVALID - * ARG0: devhandle - * ARG1: msiqid - * ARG2: msiqstate (HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR) - * RET0: status - * ERRORS: EINVAL Invalid devhandle or msiqid or msiqstate - * value or MSI EQ is uninitialized - * - * Set the state of the MSI-EQ described by the given devhandle and - * msiqid to the given msiqvalid. - */ -#define HV_FAST_PCI_MSIQ_SETSTATE 0xc5 - -/* pci_msiq_gethead() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_GETHEAD - * ARG0: devhandle - * ARG1: msiqid - * RET0: status - * RET1: msiqhead - * ERRORS: EINVAL Invalid devhandle or msiqid - * - * Get the current MSI EQ queue head for the MSI-EQ described by the - * given devhandle and msiqid. - */ -#define HV_FAST_PCI_MSIQ_GETHEAD 0xc6 - -/* pci_msiq_sethead() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_SETHEAD - * ARG0: devhandle - * ARG1: msiqid - * ARG2: msiqhead - * RET0: status - * ERRORS: EINVAL Invalid devhandle or msiqid or msiqhead, - * or MSI EQ is uninitialized - * - * Set the current MSI EQ queue head for the MSI-EQ described by the - * given devhandle and msiqid. - */ -#define HV_FAST_PCI_MSIQ_SETHEAD 0xc7 - -/* pci_msiq_gettail() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSIQ_GETTAIL - * ARG0: devhandle - * ARG1: msiqid - * RET0: status - * RET1: msiqtail - * ERRORS: EINVAL Invalid devhandle or msiqid - * - * Get the current MSI EQ queue tail for the MSI-EQ described by the - * given devhandle and msiqid. - */ -#define HV_FAST_PCI_MSIQ_GETTAIL 0xc8 - -/* pci_msi_getvalid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSI_GETVALID - * ARG0: devhandle - * ARG1: msinum - * RET0: status - * RET1: msivalidstate - * ERRORS: EINVAL Invalid devhandle or msinum - * - * Get the current valid/enabled state for the MSI defined by the - * given devhandle and msinum. - */ -#define HV_FAST_PCI_MSI_GETVALID 0xc9 - -/* pci_msi_setvalid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSI_SETVALID - * ARG0: devhandle - * ARG1: msinum - * ARG2: msivalidstate - * RET0: status - * ERRORS: EINVAL Invalid devhandle or msinum or msivalidstate - * - * Set the current valid/enabled state for the MSI defined by the - * given devhandle and msinum. - */ -#define HV_FAST_PCI_MSI_SETVALID 0xca - -/* pci_msi_getmsiq() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSI_GETMSIQ - * ARG0: devhandle - * ARG1: msinum - * RET0: status - * RET1: msiqid - * ERRORS: EINVAL Invalid devhandle or msinum or MSI is unbound - * - * Get the MSI EQ that the MSI defined by the given devhandle and - * msinum is bound to. - */ -#define HV_FAST_PCI_MSI_GETMSIQ 0xcb - -/* pci_msi_setmsiq() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSI_SETMSIQ - * ARG0: devhandle - * ARG1: msinum - * ARG2: msitype - * ARG3: msiqid - * RET0: status - * ERRORS: EINVAL Invalid devhandle or msinum or msiqid - * - * Set the MSI EQ that the MSI defined by the given devhandle and - * msinum is bound to. - */ -#define HV_FAST_PCI_MSI_SETMSIQ 0xcc - -/* pci_msi_getstate() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSI_GETSTATE - * ARG0: devhandle - * ARG1: msinum - * RET0: status - * RET1: msistate - * ERRORS: EINVAL Invalid devhandle or msinum - * - * Get the state of the MSI defined by the given devhandle and msinum. - * If not initialized, return HV_MSISTATE_IDLE. - */ -#define HV_FAST_PCI_MSI_GETSTATE 0xcd - -/* pci_msi_setstate() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSI_SETSTATE - * ARG0: devhandle - * ARG1: msinum - * ARG2: msistate - * RET0: status - * ERRORS: EINVAL Invalid devhandle or msinum or msistate - * - * Set the state of the MSI defined by the given devhandle and msinum. - */ -#define HV_FAST_PCI_MSI_SETSTATE 0xce - -/* pci_msg_getmsiq() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSG_GETMSIQ - * ARG0: devhandle - * ARG1: msgtype - * RET0: status - * RET1: msiqid - * ERRORS: EINVAL Invalid devhandle or msgtype - * - * Get the MSI EQ of the MSG defined by the given devhandle and msgtype. - */ -#define HV_FAST_PCI_MSG_GETMSIQ 0xd0 - -/* pci_msg_setmsiq() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSG_SETMSIQ - * ARG0: devhandle - * ARG1: msgtype - * ARG2: msiqid - * RET0: status - * ERRORS: EINVAL Invalid devhandle, msgtype, or msiqid - * - * Set the MSI EQ of the MSG defined by the given devhandle and msgtype. - */ -#define HV_FAST_PCI_MSG_SETMSIQ 0xd1 - -/* pci_msg_getvalid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSG_GETVALID - * ARG0: devhandle - * ARG1: msgtype - * RET0: status - * RET1: msgvalidstate - * ERRORS: EINVAL Invalid devhandle or msgtype - * - * Get the valid/enabled state of the MSG defined by the given - * devhandle and msgtype. - */ -#define HV_FAST_PCI_MSG_GETVALID 0xd2 - -/* pci_msg_setvalid() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_PCI_MSG_SETVALID - * ARG0: devhandle - * ARG1: msgtype - * ARG2: msgvalidstate - * RET0: status - * ERRORS: EINVAL Invalid devhandle or msgtype or msgvalidstate - * - * Set the valid/enabled state of the MSG defined by the given - * devhandle and msgtype. - */ -#define HV_FAST_PCI_MSG_SETVALID 0xd3 - -/* Logical Domain Channel services. */ - -#define LDC_CHANNEL_DOWN 0 -#define LDC_CHANNEL_UP 1 -#define LDC_CHANNEL_RESETTING 2 - -/* ldc_tx_qconf() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_TX_QCONF - * ARG0: channel ID - * ARG1: real address base of queue - * ARG2: num entries in queue - * RET0: status - * - * Configure transmit queue for the LDC endpoint specified by the - * given channel ID, to be placed at the given real address, and - * be of the given num entries. Num entries must be a power of two. - * The real address base of the queue must be aligned on the queue - * size. Each queue entry is 64-bytes, so for example, a 32 entry - * queue must be aligned on a 2048 byte real address boundary. - * - * Upon configuration of a valid transmit queue the head and tail - * pointers are set to a hypervisor specific identical value indicating - * that the queue initially is empty. - * - * The endpoint's transmit queue is un-configured if num entries is zero. - * - * The maximum number of entries for each queue for a specific cpu may be - * determined from the machine description. A transmit queue may be - * specified even in the event that the LDC is down (peer endpoint has no - * receive queue specified). Transmission will begin as soon as the peer - * endpoint defines a receive queue. - * - * It is recommended that a guest wait for a transmit queue to empty prior - * to reconfiguring it, or un-configuring it. Re or un-configuring of a - * non-empty transmit queue behaves exactly as defined above, however it - * is undefined as to how many of the pending entries in the original queue - * will be delivered prior to the re-configuration taking effect. - * Furthermore, as the queue configuration causes a reset of the head and - * tail pointers there is no way for a guest to determine how many entries - * have been sent after the configuration operation. - */ -#define HV_FAST_LDC_TX_QCONF 0xe0 - -/* ldc_tx_qinfo() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_TX_QINFO - * ARG0: channel ID - * RET0: status - * RET1: real address base of queue - * RET2: num entries in queue - * - * Return the configuration info for the transmit queue of LDC endpoint - * defined by the given channel ID. The real address is the currently - * defined real address base of the defined queue, and num entries is the - * size of the queue in terms of number of entries. - * - * If the specified channel ID is a valid endpoint number, but no transmit - * queue has been defined this service will return success, but with num - * entries set to zero and the real address will have an undefined value. - */ -#define HV_FAST_LDC_TX_QINFO 0xe1 - -/* ldc_tx_get_state() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_TX_GET_STATE - * ARG0: channel ID - * RET0: status - * RET1: head offset - * RET2: tail offset - * RET3: channel state - * - * Return the transmit state, and the head and tail queue pointers, for - * the transmit queue of the LDC endpoint defined by the given channel ID. - * The head and tail values are the byte offset of the head and tail - * positions of the transmit queue for the specified endpoint. - */ -#define HV_FAST_LDC_TX_GET_STATE 0xe2 - -/* ldc_tx_set_qtail() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_TX_SET_QTAIL - * ARG0: channel ID - * ARG1: tail offset - * RET0: status - * - * Update the tail pointer for the transmit queue associated with the LDC - * endpoint defined by the given channel ID. The tail offset specified - * must be aligned on a 64 byte boundary, and calculated so as to increase - * the number of pending entries on the transmit queue. Any attempt to - * decrease the number of pending transmit queue entires is considered - * an invalid tail offset and will result in an EINVAL error. - * - * Since the tail of the transmit queue may not be moved backwards, the - * transmit queue may be flushed by configuring a new transmit queue, - * whereupon the hypervisor will configure the initial transmit head and - * tail pointers to be equal. - */ -#define HV_FAST_LDC_TX_SET_QTAIL 0xe3 - -/* ldc_rx_qconf() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_RX_QCONF - * ARG0: channel ID - * ARG1: real address base of queue - * ARG2: num entries in queue - * RET0: status - * - * Configure receive queue for the LDC endpoint specified by the - * given channel ID, to be placed at the given real address, and - * be of the given num entries. Num entries must be a power of two. - * The real address base of the queue must be aligned on the queue - * size. Each queue entry is 64-bytes, so for example, a 32 entry - * queue must be aligned on a 2048 byte real address boundary. - * - * The endpoint's transmit queue is un-configured if num entries is zero. - * - * If a valid receive queue is specified for a local endpoint the LDC is - * in the up state for the purpose of transmission to this endpoint. - * - * The maximum number of entries for each queue for a specific cpu may be - * determined from the machine description. - * - * As receive queue configuration causes a reset of the queue's head and - * tail pointers there is no way for a gues to determine how many entries - * have been received between a preceeding ldc_get_rx_state() API call - * and the completion of the configuration operation. It should be noted - * that datagram delivery is not guarenteed via domain channels anyway, - * and therefore any higher protocol should be resilient to datagram - * loss if necessary. However, to overcome this specific race potential - * it is recommended, for example, that a higher level protocol be employed - * to ensure either retransmission, or ensure that no datagrams are pending - * on the peer endpoint's transmit queue prior to the configuration process. - */ -#define HV_FAST_LDC_RX_QCONF 0xe4 - -/* ldc_rx_qinfo() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_RX_QINFO - * ARG0: channel ID - * RET0: status - * RET1: real address base of queue - * RET2: num entries in queue - * - * Return the configuration info for the receive queue of LDC endpoint - * defined by the given channel ID. The real address is the currently - * defined real address base of the defined queue, and num entries is the - * size of the queue in terms of number of entries. - * - * If the specified channel ID is a valid endpoint number, but no receive - * queue has been defined this service will return success, but with num - * entries set to zero and the real address will have an undefined value. - */ -#define HV_FAST_LDC_RX_QINFO 0xe5 - -/* ldc_rx_get_state() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_RX_GET_STATE - * ARG0: channel ID - * RET0: status - * RET1: head offset - * RET2: tail offset - * RET3: channel state - * - * Return the receive state, and the head and tail queue pointers, for - * the receive queue of the LDC endpoint defined by the given channel ID. - * The head and tail values are the byte offset of the head and tail - * positions of the receive queue for the specified endpoint. - */ -#define HV_FAST_LDC_RX_GET_STATE 0xe6 - -/* ldc_rx_set_qhead() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_RX_SET_QHEAD - * ARG0: channel ID - * ARG1: head offset - * RET0: status - * - * Update the head pointer for the receive queue associated with the LDC - * endpoint defined by the given channel ID. The head offset specified - * must be aligned on a 64 byte boundary, and calculated so as to decrease - * the number of pending entries on the receive queue. Any attempt to - * increase the number of pending receive queue entires is considered - * an invalid head offset and will result in an EINVAL error. - * - * The receive queue may be flushed by setting the head offset equal - * to the current tail offset. - */ -#define HV_FAST_LDC_RX_SET_QHEAD 0xe7 - -/* LDC Map Table Entry. Each slot is defined by a translation table - * entry, as specified by the LDC_MTE_* bits below, and a 64-bit - * hypervisor invalidation cookie. - */ -#define LDC_MTE_PADDR 0x0fffffffffffe000 /* pa[55:13] */ -#define LDC_MTE_COPY_W 0x0000000000000400 /* copy write access */ -#define LDC_MTE_COPY_R 0x0000000000000200 /* copy read access */ -#define LDC_MTE_IOMMU_W 0x0000000000000100 /* IOMMU write access */ -#define LDC_MTE_IOMMU_R 0x0000000000000080 /* IOMMU read access */ -#define LDC_MTE_EXEC 0x0000000000000040 /* execute */ -#define LDC_MTE_WRITE 0x0000000000000020 /* read */ -#define LDC_MTE_READ 0x0000000000000010 /* write */ -#define LDC_MTE_SZALL 0x000000000000000f /* page size bits */ -#define LDC_MTE_SZ16GB 0x0000000000000007 /* 16GB page */ -#define LDC_MTE_SZ2GB 0x0000000000000006 /* 2GB page */ -#define LDC_MTE_SZ256MB 0x0000000000000005 /* 256MB page */ -#define LDC_MTE_SZ32MB 0x0000000000000004 /* 32MB page */ -#define LDC_MTE_SZ4MB 0x0000000000000003 /* 4MB page */ -#define LDC_MTE_SZ512K 0x0000000000000002 /* 512K page */ -#define LDC_MTE_SZ64K 0x0000000000000001 /* 64K page */ -#define LDC_MTE_SZ8K 0x0000000000000000 /* 8K page */ - -#ifndef __ASSEMBLY__ -struct ldc_mtable_entry { - unsigned long mte; - unsigned long cookie; -}; -#endif - -/* ldc_set_map_table() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_SET_MAP_TABLE - * ARG0: channel ID - * ARG1: table real address - * ARG2: num entries - * RET0: status - * - * Register the MTE table at the given table real address, with the - * specified num entries, for the LDC indicated by the given channel - * ID. - */ -#define HV_FAST_LDC_SET_MAP_TABLE 0xea - -/* ldc_get_map_table() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_GET_MAP_TABLE - * ARG0: channel ID - * RET0: status - * RET1: table real address - * RET2: num entries - * - * Return the configuration of the current mapping table registered - * for the given channel ID. - */ -#define HV_FAST_LDC_GET_MAP_TABLE 0xeb - -#define LDC_COPY_IN 0 -#define LDC_COPY_OUT 1 - -/* ldc_copy() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_COPY - * ARG0: channel ID - * ARG1: LDC_COPY_* direction code - * ARG2: target real address - * ARG3: local real address - * ARG4: length in bytes - * RET0: status - * RET1: actual length in bytes - */ -#define HV_FAST_LDC_COPY 0xec - -#define LDC_MEM_READ 1 -#define LDC_MEM_WRITE 2 -#define LDC_MEM_EXEC 4 - -/* ldc_mapin() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_MAPIN - * ARG0: channel ID - * ARG1: cookie - * RET0: status - * RET1: real address - * RET2: LDC_MEM_* permissions - */ -#define HV_FAST_LDC_MAPIN 0xed - -/* ldc_unmap() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_UNMAP - * ARG0: real address - * RET0: status - */ -#define HV_FAST_LDC_UNMAP 0xee - -/* ldc_revoke() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_LDC_REVOKE - * ARG0: channel ID - * ARG1: cookie - * ARG2: ldc_mtable_entry cookie - * RET0: status - */ -#define HV_FAST_LDC_REVOKE 0xef - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_ldc_tx_qconf(unsigned long channel, - unsigned long ra, - unsigned long num_entries); -extern unsigned long sun4v_ldc_tx_qinfo(unsigned long channel, - unsigned long *ra, - unsigned long *num_entries); -extern unsigned long sun4v_ldc_tx_get_state(unsigned long channel, - unsigned long *head_off, - unsigned long *tail_off, - unsigned long *chan_state); -extern unsigned long sun4v_ldc_tx_set_qtail(unsigned long channel, - unsigned long tail_off); -extern unsigned long sun4v_ldc_rx_qconf(unsigned long channel, - unsigned long ra, - unsigned long num_entries); -extern unsigned long sun4v_ldc_rx_qinfo(unsigned long channel, - unsigned long *ra, - unsigned long *num_entries); -extern unsigned long sun4v_ldc_rx_get_state(unsigned long channel, - unsigned long *head_off, - unsigned long *tail_off, - unsigned long *chan_state); -extern unsigned long sun4v_ldc_rx_set_qhead(unsigned long channel, - unsigned long head_off); -extern unsigned long sun4v_ldc_set_map_table(unsigned long channel, - unsigned long ra, - unsigned long num_entries); -extern unsigned long sun4v_ldc_get_map_table(unsigned long channel, - unsigned long *ra, - unsigned long *num_entries); -extern unsigned long sun4v_ldc_copy(unsigned long channel, - unsigned long dir_code, - unsigned long tgt_raddr, - unsigned long lcl_raddr, - unsigned long len, - unsigned long *actual_len); -extern unsigned long sun4v_ldc_mapin(unsigned long channel, - unsigned long cookie, - unsigned long *ra, - unsigned long *perm); -extern unsigned long sun4v_ldc_unmap(unsigned long ra); -extern unsigned long sun4v_ldc_revoke(unsigned long channel, - unsigned long cookie, - unsigned long mte_cookie); -#endif - -/* Performance counter services. */ - -#define HV_PERF_JBUS_PERF_CTRL_REG 0x00 -#define HV_PERF_JBUS_PERF_CNT_REG 0x01 -#define HV_PERF_DRAM_PERF_CTRL_REG_0 0x02 -#define HV_PERF_DRAM_PERF_CNT_REG_0 0x03 -#define HV_PERF_DRAM_PERF_CTRL_REG_1 0x04 -#define HV_PERF_DRAM_PERF_CNT_REG_1 0x05 -#define HV_PERF_DRAM_PERF_CTRL_REG_2 0x06 -#define HV_PERF_DRAM_PERF_CNT_REG_2 0x07 -#define HV_PERF_DRAM_PERF_CTRL_REG_3 0x08 -#define HV_PERF_DRAM_PERF_CNT_REG_3 0x09 - -/* get_perfreg() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_GET_PERFREG - * ARG0: performance reg number - * RET0: status - * RET1: performance reg value - * ERRORS: EINVAL Invalid performance register number - * ENOACCESS No access allowed to performance counters - * - * Read the value of the given DRAM/JBUS performance counter/control register. - */ -#define HV_FAST_GET_PERFREG 0x100 - -/* set_perfreg() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_SET_PERFREG - * ARG0: performance reg number - * ARG1: performance reg value - * RET0: status - * ERRORS: EINVAL Invalid performance register number - * ENOACCESS No access allowed to performance counters - * - * Write the given performance reg value to the given DRAM/JBUS - * performance counter/control register. - */ -#define HV_FAST_SET_PERFREG 0x101 - -/* MMU statistics services. - * - * The hypervisor maintains MMU statistics and privileged code provides - * a buffer where these statistics can be collected. It is continually - * updated once configured. The layout is as follows: - */ -#ifndef __ASSEMBLY__ -struct hv_mmu_statistics { - unsigned long immu_tsb_hits_ctx0_8k_tte; - unsigned long immu_tsb_ticks_ctx0_8k_tte; - unsigned long immu_tsb_hits_ctx0_64k_tte; - unsigned long immu_tsb_ticks_ctx0_64k_tte; - unsigned long __reserved1[2]; - unsigned long immu_tsb_hits_ctx0_4mb_tte; - unsigned long immu_tsb_ticks_ctx0_4mb_tte; - unsigned long __reserved2[2]; - unsigned long immu_tsb_hits_ctx0_256mb_tte; - unsigned long immu_tsb_ticks_ctx0_256mb_tte; - unsigned long __reserved3[4]; - unsigned long immu_tsb_hits_ctxnon0_8k_tte; - unsigned long immu_tsb_ticks_ctxnon0_8k_tte; - unsigned long immu_tsb_hits_ctxnon0_64k_tte; - unsigned long immu_tsb_ticks_ctxnon0_64k_tte; - unsigned long __reserved4[2]; - unsigned long immu_tsb_hits_ctxnon0_4mb_tte; - unsigned long immu_tsb_ticks_ctxnon0_4mb_tte; - unsigned long __reserved5[2]; - unsigned long immu_tsb_hits_ctxnon0_256mb_tte; - unsigned long immu_tsb_ticks_ctxnon0_256mb_tte; - unsigned long __reserved6[4]; - unsigned long dmmu_tsb_hits_ctx0_8k_tte; - unsigned long dmmu_tsb_ticks_ctx0_8k_tte; - unsigned long dmmu_tsb_hits_ctx0_64k_tte; - unsigned long dmmu_tsb_ticks_ctx0_64k_tte; - unsigned long __reserved7[2]; - unsigned long dmmu_tsb_hits_ctx0_4mb_tte; - unsigned long dmmu_tsb_ticks_ctx0_4mb_tte; - unsigned long __reserved8[2]; - unsigned long dmmu_tsb_hits_ctx0_256mb_tte; - unsigned long dmmu_tsb_ticks_ctx0_256mb_tte; - unsigned long __reserved9[4]; - unsigned long dmmu_tsb_hits_ctxnon0_8k_tte; - unsigned long dmmu_tsb_ticks_ctxnon0_8k_tte; - unsigned long dmmu_tsb_hits_ctxnon0_64k_tte; - unsigned long dmmu_tsb_ticks_ctxnon0_64k_tte; - unsigned long __reserved10[2]; - unsigned long dmmu_tsb_hits_ctxnon0_4mb_tte; - unsigned long dmmu_tsb_ticks_ctxnon0_4mb_tte; - unsigned long __reserved11[2]; - unsigned long dmmu_tsb_hits_ctxnon0_256mb_tte; - unsigned long dmmu_tsb_ticks_ctxnon0_256mb_tte; - unsigned long __reserved12[4]; -}; -#endif - -/* mmustat_conf() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMUSTAT_CONF - * ARG0: real address - * RET0: status - * RET1: real address - * ERRORS: ENORADDR Invalid real address - * EBADALIGN Real address not aligned on 64-byte boundary - * EBADTRAP API not supported on this processor - * - * Enable MMU statistic gathering using the buffer at the given real - * address on the current virtual CPU. The new buffer real address - * is given in ARG1, and the previously specified buffer real address - * is returned in RET1, or is returned as zero for the first invocation. - * - * If the passed in real address argument is zero, this will disable - * MMU statistic collection on the current virtual CPU. If an error is - * returned then no statistics are collected. - * - * The buffer contents should be initialized to all zeros before being - * given to the hypervisor or else the statistics will be meaningless. - */ -#define HV_FAST_MMUSTAT_CONF 0x102 - -/* mmustat_info() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_MMUSTAT_INFO - * RET0: status - * RET1: real address - * ERRORS: EBADTRAP API not supported on this processor - * - * Return the current state and real address of the currently configured - * MMU statistics buffer on the current virtual CPU. - */ -#define HV_FAST_MMUSTAT_INFO 0x103 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_mmustat_conf(unsigned long ra, unsigned long *orig_ra); -extern unsigned long sun4v_mmustat_info(unsigned long *ra); -#endif - -/* NCS crypto services */ - -/* ncs_request() sub-function numbers */ -#define HV_NCS_QCONF 0x01 -#define HV_NCS_QTAIL_UPDATE 0x02 - -#ifndef __ASSEMBLY__ -struct hv_ncs_queue_entry { - /* MAU Control Register */ - unsigned long mau_control; -#define MAU_CONTROL_INV_PARITY 0x0000000000002000 -#define MAU_CONTROL_STRAND 0x0000000000001800 -#define MAU_CONTROL_BUSY 0x0000000000000400 -#define MAU_CONTROL_INT 0x0000000000000200 -#define MAU_CONTROL_OP 0x00000000000001c0 -#define MAU_CONTROL_OP_SHIFT 6 -#define MAU_OP_LOAD_MA_MEMORY 0x0 -#define MAU_OP_STORE_MA_MEMORY 0x1 -#define MAU_OP_MODULAR_MULT 0x2 -#define MAU_OP_MODULAR_REDUCE 0x3 -#define MAU_OP_MODULAR_EXP_LOOP 0x4 -#define MAU_CONTROL_LEN 0x000000000000003f -#define MAU_CONTROL_LEN_SHIFT 0 - - /* Real address of bytes to load or store bytes - * into/out-of the MAU. - */ - unsigned long mau_mpa; - - /* Modular Arithmetic MA Offset Register. */ - unsigned long mau_ma; - - /* Modular Arithmetic N Prime Register. */ - unsigned long mau_np; -}; - -struct hv_ncs_qconf_arg { - unsigned long mid; /* MAU ID, 1 per core on Niagara */ - unsigned long base; /* Real address base of queue */ - unsigned long end; /* Real address end of queue */ - unsigned long num_ents; /* Number of entries in queue */ -}; - -struct hv_ncs_qtail_update_arg { - unsigned long mid; /* MAU ID, 1 per core on Niagara */ - unsigned long tail; /* New tail index to use */ - unsigned long syncflag; /* only SYNCFLAG_SYNC is implemented */ -#define HV_NCS_SYNCFLAG_SYNC 0x00 -#define HV_NCS_SYNCFLAG_ASYNC 0x01 -}; -#endif - -/* ncs_request() - * TRAP: HV_FAST_TRAP - * FUNCTION: HV_FAST_NCS_REQUEST - * ARG0: NCS sub-function - * ARG1: sub-function argument real address - * ARG2: size in bytes of sub-function argument - * RET0: status - * - * The MAU chip of the Niagara processor is not directly accessible - * to privileged code, instead it is programmed indirectly via this - * hypervisor API. - * - * The interfaces defines a queue of MAU operations to perform. - * Privileged code registers a queue with the hypervisor by invoking - * this HVAPI with the HV_NCS_QCONF sub-function, which defines the - * base, end, and number of entries of the queue. Each queue entry - * contains a MAU register struct block. - * - * The privileged code then proceeds to add entries to the queue and - * then invoke the HV_NCS_QTAIL_UPDATE sub-function. Since only - * synchronous operations are supported by the current hypervisor, - * HV_NCS_QTAIL_UPDATE will run all the pending queue entries to - * completion and return HV_EOK, or return an error code. - * - * The real address of the sub-function argument must be aligned on at - * least an 8-byte boundary. - * - * The tail argument of HV_NCS_QTAIL_UPDATE is an index, not a byte - * offset, into the queue and must be less than or equal the 'num_ents' - * argument given in the HV_NCS_QCONF call. - */ -#define HV_FAST_NCS_REQUEST 0x110 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_ncs_request(unsigned long request, - unsigned long arg_ra, - unsigned long arg_size); -#endif - -#define HV_FAST_FIRE_GET_PERFREG 0x120 -#define HV_FAST_FIRE_SET_PERFREG 0x121 - -/* Function numbers for HV_CORE_TRAP. */ -#define HV_CORE_SET_VER 0x00 -#define HV_CORE_PUTCHAR 0x01 -#define HV_CORE_EXIT 0x02 -#define HV_CORE_GET_VER 0x03 - -/* Hypervisor API groups for use with HV_CORE_SET_VER and - * HV_CORE_GET_VER. - */ -#define HV_GRP_SUN4V 0x0000 -#define HV_GRP_CORE 0x0001 -#define HV_GRP_INTR 0x0002 -#define HV_GRP_SOFT_STATE 0x0003 -#define HV_GRP_PCI 0x0100 -#define HV_GRP_LDOM 0x0101 -#define HV_GRP_SVC_CHAN 0x0102 -#define HV_GRP_NCS 0x0103 -#define HV_GRP_NIAG_PERF 0x0200 -#define HV_GRP_FIRE_PERF 0x0201 -#define HV_GRP_DIAG 0x0300 - -#ifndef __ASSEMBLY__ -extern unsigned long sun4v_get_version(unsigned long group, - unsigned long *major, - unsigned long *minor); -extern unsigned long sun4v_set_version(unsigned long group, - unsigned long major, - unsigned long minor, - unsigned long *actual_minor); - -extern int sun4v_hvapi_register(unsigned long group, unsigned long major, - unsigned long *minor); -extern void sun4v_hvapi_unregister(unsigned long group); -extern int sun4v_hvapi_get(unsigned long group, - unsigned long *major, - unsigned long *minor); -extern void sun4v_hvapi_init(void); -#endif - -#endif /* !(_SPARC64_HYPERVISOR_H) */ +#include diff --git a/include/asm-sparc64/intr_queue.h b/include/asm-sparc64/intr_queue.h index 206077dedc2a..f7225015b3db 100644 --- a/include/asm-sparc64/intr_queue.h +++ b/include/asm-sparc64/intr_queue.h @@ -1,15 +1 @@ -#ifndef _SPARC64_INTR_QUEUE_H -#define _SPARC64_INTR_QUEUE_H - -/* Sun4v interrupt queue registers, accessed via ASI_QUEUE. */ - -#define INTRQ_CPU_MONDO_HEAD 0x3c0 /* CPU mondo head */ -#define INTRQ_CPU_MONDO_TAIL 0x3c8 /* CPU mondo tail */ -#define INTRQ_DEVICE_MONDO_HEAD 0x3d0 /* Device mondo head */ -#define INTRQ_DEVICE_MONDO_TAIL 0x3d8 /* Device mondo tail */ -#define INTRQ_RESUM_MONDO_HEAD 0x3e0 /* Resumable error mondo head */ -#define INTRQ_RESUM_MONDO_TAIL 0x3e8 /* Resumable error mondo tail */ -#define INTRQ_NONRESUM_MONDO_HEAD 0x3f0 /* Non-resumable error mondo head */ -#define INTRQ_NONRESUM_MONDO_TAIL 0x3f8 /* Non-resumable error mondo head */ - -#endif /* !(_SPARC64_INTR_QUEUE_H) */ +#include diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h index 5879d71afdaa..c55e43e4d2a4 100644 --- a/include/asm-sparc64/kprobes.h +++ b/include/asm-sparc64/kprobes.h @@ -1,49 +1 @@ -#ifndef _SPARC64_KPROBES_H -#define _SPARC64_KPROBES_H - -#include -#include - -typedef u32 kprobe_opcode_t; - -#define BREAKPOINT_INSTRUCTION 0x91d02070 /* ta 0x70 */ -#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */ -#define MAX_INSN_SIZE 2 - -#define kretprobe_blacklist_size 0 - -#define arch_remove_kprobe(p) do {} while (0) - -#define flush_insn_slot(p) \ -do { flushi(&(p)->ainsn.insn[0]); \ - flushi(&(p)->ainsn.insn[1]); \ -} while (0) - -void kretprobe_trampoline(void); - -/* Architecture specific copy of original instruction*/ -struct arch_specific_insn { - /* copy of the original instruction */ - kprobe_opcode_t insn[MAX_INSN_SIZE]; -}; - -struct prev_kprobe { - struct kprobe *kp; - unsigned long status; - unsigned long orig_tnpc; - unsigned long orig_tstate_pil; -}; - -/* per-cpu kprobe control block */ -struct kprobe_ctlblk { - unsigned long kprobe_status; - unsigned long kprobe_orig_tnpc; - unsigned long kprobe_orig_tstate_pil; - struct pt_regs jprobe_saved_regs; - struct prev_kprobe prev_kprobe; -}; - -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); -extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); -#endif /* _SPARC64_KPROBES_H */ +#include diff --git a/include/asm-sparc64/ldc.h b/include/asm-sparc64/ldc.h index bdb524a7b814..40f3f231c457 100644 --- a/include/asm-sparc64/ldc.h +++ b/include/asm-sparc64/ldc.h @@ -1,138 +1 @@ -#ifndef _SPARC64_LDC_H -#define _SPARC64_LDC_H - -#include - -extern int ldom_domaining_enabled; -extern void ldom_set_var(const char *var, const char *value); -extern void ldom_reboot(const char *boot_command); -extern void ldom_power_off(void); - -/* The event handler will be evoked when link state changes - * or data becomes available on the receive side. - * - * For non-RAW links, if the LDC_EVENT_RESET event arrives the - * driver should reset all of it's internal state and reinvoke - * ldc_connect() to try and bring the link up again. - * - * For RAW links, ldc_connect() is not used. Instead the driver - * just waits for the LDC_EVENT_UP event. - */ -struct ldc_channel_config { - void (*event)(void *arg, int event); - - u32 mtu; - unsigned int rx_irq; - unsigned int tx_irq; - u8 mode; -#define LDC_MODE_RAW 0x00 -#define LDC_MODE_UNRELIABLE 0x01 -#define LDC_MODE_RESERVED 0x02 -#define LDC_MODE_STREAM 0x03 - - u8 debug; -#define LDC_DEBUG_HS 0x01 -#define LDC_DEBUG_STATE 0x02 -#define LDC_DEBUG_RX 0x04 -#define LDC_DEBUG_TX 0x08 -#define LDC_DEBUG_DATA 0x10 -}; - -#define LDC_EVENT_RESET 0x01 -#define LDC_EVENT_UP 0x02 -#define LDC_EVENT_DATA_READY 0x04 - -#define LDC_STATE_INVALID 0x00 -#define LDC_STATE_INIT 0x01 -#define LDC_STATE_BOUND 0x02 -#define LDC_STATE_READY 0x03 -#define LDC_STATE_CONNECTED 0x04 - -struct ldc_channel; - -/* Allocate state for a channel. */ -extern struct ldc_channel *ldc_alloc(unsigned long id, - const struct ldc_channel_config *cfgp, - void *event_arg); - -/* Shut down and free state for a channel. */ -extern void ldc_free(struct ldc_channel *lp); - -/* Register TX and RX queues of the link with the hypervisor. */ -extern int ldc_bind(struct ldc_channel *lp, const char *name); - -/* For non-RAW protocols we need to complete a handshake before - * communication can proceed. ldc_connect() does that, if the - * handshake completes successfully, an LDC_EVENT_UP event will - * be sent up to the driver. - */ -extern int ldc_connect(struct ldc_channel *lp); -extern int ldc_disconnect(struct ldc_channel *lp); - -extern int ldc_state(struct ldc_channel *lp); - -/* Read and write operations. Only valid when the link is up. */ -extern int ldc_write(struct ldc_channel *lp, const void *buf, - unsigned int size); -extern int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size); - -#define LDC_MAP_SHADOW 0x01 -#define LDC_MAP_DIRECT 0x02 -#define LDC_MAP_IO 0x04 -#define LDC_MAP_R 0x08 -#define LDC_MAP_W 0x10 -#define LDC_MAP_X 0x20 -#define LDC_MAP_RW (LDC_MAP_R | LDC_MAP_W) -#define LDC_MAP_RWX (LDC_MAP_R | LDC_MAP_W | LDC_MAP_X) -#define LDC_MAP_ALL 0x03f - -struct ldc_trans_cookie { - u64 cookie_addr; - u64 cookie_size; -}; - -struct scatterlist; -extern int ldc_map_sg(struct ldc_channel *lp, - struct scatterlist *sg, int num_sg, - struct ldc_trans_cookie *cookies, int ncookies, - unsigned int map_perm); - -extern int ldc_map_single(struct ldc_channel *lp, - void *buf, unsigned int len, - struct ldc_trans_cookie *cookies, int ncookies, - unsigned int map_perm); - -extern void ldc_unmap(struct ldc_channel *lp, struct ldc_trans_cookie *cookies, - int ncookies); - -extern int ldc_copy(struct ldc_channel *lp, int copy_dir, - void *buf, unsigned int len, unsigned long offset, - struct ldc_trans_cookie *cookies, int ncookies); - -static inline int ldc_get_dring_entry(struct ldc_channel *lp, - void *buf, unsigned int len, - unsigned long offset, - struct ldc_trans_cookie *cookies, - int ncookies) -{ - return ldc_copy(lp, LDC_COPY_IN, buf, len, offset, cookies, ncookies); -} - -static inline int ldc_put_dring_entry(struct ldc_channel *lp, - void *buf, unsigned int len, - unsigned long offset, - struct ldc_trans_cookie *cookies, - int ncookies) -{ - return ldc_copy(lp, LDC_COPY_OUT, buf, len, offset, cookies, ncookies); -} - -extern void *ldc_alloc_exp_dring(struct ldc_channel *lp, unsigned int len, - struct ldc_trans_cookie *cookies, - int *ncookies, unsigned int map_perm); - -extern void ldc_free_exp_dring(struct ldc_channel *lp, void *buf, - unsigned int len, - struct ldc_trans_cookie *cookies, int ncookies); - -#endif /* _SPARC64_LDC_H */ +#include diff --git a/include/asm-sparc64/lmb.h b/include/asm-sparc64/lmb.h index 6a352cbcf520..3d04981701e2 100644 --- a/include/asm-sparc64/lmb.h +++ b/include/asm-sparc64/lmb.h @@ -1,10 +1 @@ -#ifndef _SPARC64_LMB_H -#define _SPARC64_LMB_H - -#include - -#define LMB_DBG(fmt...) prom_printf(fmt) - -#define LMB_REAL_LIMIT 0 - -#endif /* !(_SPARC64_LMB_H) */ +#include diff --git a/include/asm-sparc64/lsu.h b/include/asm-sparc64/lsu.h index 7190f8de90a0..4e3d8b128a58 100644 --- a/include/asm-sparc64/lsu.h +++ b/include/asm-sparc64/lsu.h @@ -1,19 +1 @@ -#ifndef _SPARC64_LSU_H -#define _SPARC64_LSU_H - -#include - -/* LSU Control Register */ -#define LSU_CONTROL_PM _AC(0x000001fe00000000,UL) /* Phys-watchpoint byte mask*/ -#define LSU_CONTROL_VM _AC(0x00000001fe000000,UL) /* Virt-watchpoint byte mask*/ -#define LSU_CONTROL_PR _AC(0x0000000001000000,UL) /* Phys-rd watchpoint enable*/ -#define LSU_CONTROL_PW _AC(0x0000000000800000,UL) /* Phys-wr watchpoint enable*/ -#define LSU_CONTROL_VR _AC(0x0000000000400000,UL) /* Virt-rd watchpoint enable*/ -#define LSU_CONTROL_VW _AC(0x0000000000200000,UL) /* Virt-wr watchpoint enable*/ -#define LSU_CONTROL_FM _AC(0x00000000000ffff0,UL) /* Parity mask enables. */ -#define LSU_CONTROL_DM _AC(0x0000000000000008,UL) /* Data MMU enable. */ -#define LSU_CONTROL_IM _AC(0x0000000000000004,UL) /* Instruction MMU enable. */ -#define LSU_CONTROL_DC _AC(0x0000000000000002,UL) /* Data cache enable. */ -#define LSU_CONTROL_IC _AC(0x0000000000000001,UL) /* Instruction cache enable.*/ - -#endif /* !(_SPARC64_LSU_H) */ +#include diff --git a/include/asm-sparc64/mdesc.h b/include/asm-sparc64/mdesc.h index 1acc7272e537..165a19347286 100644 --- a/include/asm-sparc64/mdesc.h +++ b/include/asm-sparc64/mdesc.h @@ -1,78 +1 @@ -#ifndef _SPARC64_MDESC_H -#define _SPARC64_MDESC_H - -#include -#include -#include - -struct mdesc_handle; - -/* Machine description operations are to be surrounded by grab and - * release calls. The mdesc_handle returned from the grab is - * the first argument to all of the operational calls that work - * on mdescs. - */ -extern struct mdesc_handle *mdesc_grab(void); -extern void mdesc_release(struct mdesc_handle *); - -#define MDESC_NODE_NULL (~(u64)0) - -extern u64 mdesc_node_by_name(struct mdesc_handle *handle, - u64 from_node, const char *name); -#define mdesc_for_each_node_by_name(__hdl, __node, __name) \ - for (__node = mdesc_node_by_name(__hdl, MDESC_NODE_NULL, __name); \ - (__node) != MDESC_NODE_NULL; \ - __node = mdesc_node_by_name(__hdl, __node, __name)) - -/* Access to property values returned from mdesc_get_property() are - * only valid inside of a mdesc_grab()/mdesc_release() sequence. - * Once mdesc_release() is called, the memory backed up by these - * pointers may reference freed up memory. - * - * Therefore callers must make copies of any property values - * they need. - * - * These same rules apply to mdesc_node_name(). - */ -extern const void *mdesc_get_property(struct mdesc_handle *handle, - u64 node, const char *name, int *lenp); -extern const char *mdesc_node_name(struct mdesc_handle *hp, u64 node); - -/* MD arc iteration, the standard sequence is: - * - * unsigned long arc; - * mdesc_for_each_arc(arc, handle, node, MDESC_ARC_TYPE_{FWD,BACK}) { - * unsigned long target = mdesc_arc_target(handle, arc); - * ... - * } - */ - -#define MDESC_ARC_TYPE_FWD "fwd" -#define MDESC_ARC_TYPE_BACK "back" - -extern u64 mdesc_next_arc(struct mdesc_handle *handle, u64 from, - const char *arc_type); -#define mdesc_for_each_arc(__arc, __hdl, __node, __type) \ - for (__arc = mdesc_next_arc(__hdl, __node, __type); \ - (__arc) != MDESC_NODE_NULL; \ - __arc = mdesc_next_arc(__hdl, __arc, __type)) - -extern u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc); - -extern void mdesc_update(void); - -struct mdesc_notifier_client { - void (*add)(struct mdesc_handle *handle, u64 node); - void (*remove)(struct mdesc_handle *handle, u64 node); - - const char *node_name; - struct mdesc_notifier_client *next; -}; - -extern void mdesc_register_notifier(struct mdesc_notifier_client *client); - -extern void mdesc_fill_in_cpu_data(cpumask_t mask); - -extern void sun4v_mdesc_init(void); - -#endif +#include diff --git a/include/asm-sparc64/mmzone.h b/include/asm-sparc64/mmzone.h index ebf5986c12ed..43a710f7892a 100644 --- a/include/asm-sparc64/mmzone.h +++ b/include/asm-sparc64/mmzone.h @@ -1,17 +1 @@ -#ifndef _SPARC64_MMZONE_H -#define _SPARC64_MMZONE_H - -#ifdef CONFIG_NEED_MULTIPLE_NODES - -extern struct pglist_data *node_data[]; - -#define NODE_DATA(nid) (node_data[nid]) -#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) -#define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn) - -extern int numa_cpu_lookup_table[]; -extern cpumask_t numa_cpumask_lookup_table[]; - -#endif /* CONFIG_NEED_MULTIPLE_NODES */ - -#endif /* _SPARC64_MMZONE_H */ +#include diff --git a/include/asm-sparc64/ns87303.h b/include/asm-sparc64/ns87303.h index 686defe6aaa0..5f369d4df3db 100644 --- a/include/asm-sparc64/ns87303.h +++ b/include/asm-sparc64/ns87303.h @@ -1,118 +1 @@ -/* ns87303.h: Configuration Register Description for the - * National Semiconductor PC87303 (SuperIO). - * - * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) - */ - -#ifndef _SPARC_NS87303_H -#define _SPARC_NS87303_H 1 - -/* - * Control Register Index Values - */ -#define FER 0x00 -#define FAR 0x01 -#define PTR 0x02 -#define FCR 0x03 -#define PCR 0x04 -#define KRR 0x05 -#define PMC 0x06 -#define TUP 0x07 -#define SID 0x08 -#define ASC 0x09 -#define CS0CF0 0x0a -#define CS0CF1 0x0b -#define CS1CF0 0x0c -#define CS1CF1 0x0d - -/* Function Enable Register (FER) bits */ -#define FER_EDM 0x10 /* Encoded Drive and Motor pin information */ - -/* Function Address Register (FAR) bits */ -#define FAR_LPT_MASK 0x03 -#define FAR_LPTB 0x00 -#define FAR_LPTA 0x01 -#define FAR_LPTC 0x02 - -/* Power and Test Register (PTR) bits */ -#define PTR_LPTB_IRQ7 0x08 -#define PTR_LEVEL_IRQ 0x80 /* When not ECP/EPP: Use level IRQ */ -#define PTR_LPT_REG_DIR 0x80 /* When ECP/EPP: LPT CTR controlls direction */ - /* of the parallel port */ - -/* Function Control Register (FCR) bits */ -#define FCR_LDE 0x10 /* Logical Drive Exchange */ -#define FCR_ZWS_ENA 0x20 /* Enable short host read/write in ECP/EPP */ - -/* Printer Control Register (PCR) bits */ -#define PCR_EPP_ENABLE 0x01 -#define PCR_EPP_IEEE 0x02 /* Enable EPP Version 1.9 (IEEE 1284) */ -#define PCR_ECP_ENABLE 0x04 -#define PCR_ECP_CLK_ENA 0x08 /* If 0 ECP Clock is stopped on Power down */ -#define PCR_IRQ_POLAR 0x20 /* If 0 IRQ is level high or negative pulse, */ - /* if 1 polarity is inverted */ -#define PCR_IRQ_ODRAIN 0x40 /* If 1, IRQ is open drain */ - -/* Tape UARTs and Parallel Port Config Register (TUP) bits */ -#define TUP_EPP_TIMO 0x02 /* Enable EPP timeout IRQ */ - -/* Advanced SuperIO Config Register (ASC) bits */ -#define ASC_LPT_IRQ7 0x01 /* Always use IRQ7 for LPT */ -#define ASC_DRV2_SEL 0x02 /* Logical Drive Exchange controlled by TDR */ - -#define FER_RESERVED 0x00 -#define FAR_RESERVED 0x00 -#define PTR_RESERVED 0x73 -#define FCR_RESERVED 0xc4 -#define PCR_RESERVED 0x10 -#define KRR_RESERVED 0x00 -#define PMC_RESERVED 0x98 -#define TUP_RESERVED 0xfb -#define SIP_RESERVED 0x00 -#define ASC_RESERVED 0x18 -#define CS0CF0_RESERVED 0x00 -#define CS0CF1_RESERVED 0x08 -#define CS1CF0_RESERVED 0x00 -#define CS1CF1_RESERVED 0x08 - -#ifdef __KERNEL__ - -#include - -#include -#include - -extern spinlock_t ns87303_lock; - -static inline int ns87303_modify(unsigned long port, unsigned int index, - unsigned char clr, unsigned char set) -{ - static unsigned char reserved[] = { - FER_RESERVED, FAR_RESERVED, PTR_RESERVED, FCR_RESERVED, - PCR_RESERVED, KRR_RESERVED, PMC_RESERVED, TUP_RESERVED, - SIP_RESERVED, ASC_RESERVED, CS0CF0_RESERVED, CS0CF1_RESERVED, - CS1CF0_RESERVED, CS1CF1_RESERVED - }; - unsigned long flags; - unsigned char value; - - if (index > 0x0d) - return -EINVAL; - - spin_lock_irqsave(&ns87303_lock, flags); - - outb(index, port); - value = inb(port + 1); - value &= ~(reserved[index] | clr); - value |= set; - outb(value, port + 1); - outb(value, port + 1); - - spin_unlock_irqrestore(&ns87303_lock, flags); - - return 0; -} - -#endif /* __KERNEL__ */ - -#endif /* !(_SPARC_NS87303_H) */ +#include diff --git a/include/asm-sparc64/parport.h b/include/asm-sparc64/parport.h index e9555b246c8d..b4e4ca812eb6 100644 --- a/include/asm-sparc64/parport.h +++ b/include/asm-sparc64/parport.h @@ -1,246 +1 @@ -/* parport.h: sparc64 specific parport initialization and dma. - * - * Copyright (C) 1999 Eddie C. Dost (ecd@skynet.be) - */ - -#ifndef _ASM_SPARC64_PARPORT_H -#define _ASM_SPARC64_PARPORT_H 1 - -#include -#include -#include -#include - -#define PARPORT_PC_MAX_PORTS PARPORT_MAX - -/* - * While sparc64 doesn't have an ISA DMA API, we provide something that looks - * close enough to make parport_pc happy - */ -#define HAS_DMA - -static DEFINE_SPINLOCK(dma_spin_lock); - -#define claim_dma_lock() \ -({ unsigned long flags; \ - spin_lock_irqsave(&dma_spin_lock, flags); \ - flags; \ -}) - -#define release_dma_lock(__flags) \ - spin_unlock_irqrestore(&dma_spin_lock, __flags); - -static struct sparc_ebus_info { - struct ebus_dma_info info; - unsigned int addr; - unsigned int count; - int lock; - - struct parport *port; -} sparc_ebus_dmas[PARPORT_PC_MAX_PORTS]; - -static DECLARE_BITMAP(dma_slot_map, PARPORT_PC_MAX_PORTS); - -static inline int request_dma(unsigned int dmanr, const char *device_id) -{ - if (dmanr >= PARPORT_PC_MAX_PORTS) - return -EINVAL; - if (xchg(&sparc_ebus_dmas[dmanr].lock, 1) != 0) - return -EBUSY; - return 0; -} - -static inline void free_dma(unsigned int dmanr) -{ - if (dmanr >= PARPORT_PC_MAX_PORTS) { - printk(KERN_WARNING "Trying to free DMA%d\n", dmanr); - return; - } - if (xchg(&sparc_ebus_dmas[dmanr].lock, 0) == 0) { - printk(KERN_WARNING "Trying to free free DMA%d\n", dmanr); - return; - } -} - -static inline void enable_dma(unsigned int dmanr) -{ - ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 1); - - if (ebus_dma_request(&sparc_ebus_dmas[dmanr].info, - sparc_ebus_dmas[dmanr].addr, - sparc_ebus_dmas[dmanr].count)) - BUG(); -} - -static inline void disable_dma(unsigned int dmanr) -{ - ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 0); -} - -static inline void clear_dma_ff(unsigned int dmanr) -{ - /* nothing */ -} - -static inline void set_dma_mode(unsigned int dmanr, char mode) -{ - ebus_dma_prepare(&sparc_ebus_dmas[dmanr].info, (mode != DMA_MODE_WRITE)); -} - -static inline void set_dma_addr(unsigned int dmanr, unsigned int addr) -{ - sparc_ebus_dmas[dmanr].addr = addr; -} - -static inline void set_dma_count(unsigned int dmanr, unsigned int count) -{ - sparc_ebus_dmas[dmanr].count = count; -} - -static inline unsigned int get_dma_residue(unsigned int dmanr) -{ - return ebus_dma_residue(&sparc_ebus_dmas[dmanr].info); -} - -static int __devinit ecpp_probe(struct of_device *op, const struct of_device_id *match) -{ - unsigned long base = op->resource[0].start; - unsigned long config = op->resource[1].start; - unsigned long d_base = op->resource[2].start; - unsigned long d_len; - struct device_node *parent; - struct parport *p; - int slot, err; - - parent = op->node->parent; - if (!strcmp(parent->name, "dma")) { - p = parport_pc_probe_port(base, base + 0x400, - op->irqs[0], PARPORT_DMA_NOFIFO, - op->dev.parent->parent); - if (!p) - return -ENOMEM; - dev_set_drvdata(&op->dev, p); - return 0; - } - - for (slot = 0; slot < PARPORT_PC_MAX_PORTS; slot++) { - if (!test_and_set_bit(slot, dma_slot_map)) - break; - } - err = -ENODEV; - if (slot >= PARPORT_PC_MAX_PORTS) - goto out_err; - - spin_lock_init(&sparc_ebus_dmas[slot].info.lock); - - d_len = (op->resource[2].end - d_base) + 1UL; - sparc_ebus_dmas[slot].info.regs = - of_ioremap(&op->resource[2], 0, d_len, "ECPP DMA"); - - if (!sparc_ebus_dmas[slot].info.regs) - goto out_clear_map; - - sparc_ebus_dmas[slot].info.flags = 0; - sparc_ebus_dmas[slot].info.callback = NULL; - sparc_ebus_dmas[slot].info.client_cookie = NULL; - sparc_ebus_dmas[slot].info.irq = 0xdeadbeef; - strcpy(sparc_ebus_dmas[slot].info.name, "parport"); - if (ebus_dma_register(&sparc_ebus_dmas[slot].info)) - goto out_unmap_regs; - - ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 1); - - /* Configure IRQ to Push Pull, Level Low */ - /* Enable ECP, set bit 2 of the CTR first */ - outb(0x04, base + 0x02); - ns87303_modify(config, PCR, - PCR_EPP_ENABLE | - PCR_IRQ_ODRAIN, - PCR_ECP_ENABLE | - PCR_ECP_CLK_ENA | - PCR_IRQ_POLAR); - - /* CTR bit 5 controls direction of port */ - ns87303_modify(config, PTR, - 0, PTR_LPT_REG_DIR); - - p = parport_pc_probe_port(base, base + 0x400, - op->irqs[0], - slot, - op->dev.parent); - err = -ENOMEM; - if (!p) - goto out_disable_irq; - - dev_set_drvdata(&op->dev, p); - - return 0; - -out_disable_irq: - ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 0); - ebus_dma_unregister(&sparc_ebus_dmas[slot].info); - -out_unmap_regs: - of_iounmap(&op->resource[2], sparc_ebus_dmas[slot].info.regs, d_len); - -out_clear_map: - clear_bit(slot, dma_slot_map); - -out_err: - return err; -} - -static int __devexit ecpp_remove(struct of_device *op) -{ - struct parport *p = dev_get_drvdata(&op->dev); - int slot = p->dma; - - parport_pc_unregister_port(p); - - if (slot != PARPORT_DMA_NOFIFO) { - unsigned long d_base = op->resource[2].start; - unsigned long d_len; - - d_len = (op->resource[2].end - d_base) + 1UL; - - ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 0); - ebus_dma_unregister(&sparc_ebus_dmas[slot].info); - of_iounmap(&op->resource[2], - sparc_ebus_dmas[slot].info.regs, - d_len); - clear_bit(slot, dma_slot_map); - } - - return 0; -} - -static struct of_device_id ecpp_match[] = { - { - .name = "ecpp", - }, - { - .name = "parallel", - .compatible = "ecpp", - }, - { - .name = "parallel", - .compatible = "ns87317-ecpp", - }, - {}, -}; - -static struct of_platform_driver ecpp_driver = { - .name = "ecpp", - .match_table = ecpp_match, - .probe = ecpp_probe, - .remove = __devexit_p(ecpp_remove), -}; - -static int parport_pc_find_nonpci_ports(int autoirq, int autodma) -{ - of_register_driver(&ecpp_driver, &of_bus_type); - - return 0; -} - -#endif /* !(_ASM_SPARC64_PARPORT_H */ +#include diff --git a/include/asm-sparc64/pil.h b/include/asm-sparc64/pil.h index eaac842d88c3..d805f33f1e0f 100644 --- a/include/asm-sparc64/pil.h +++ b/include/asm-sparc64/pil.h @@ -1,21 +1 @@ -#ifndef _SPARC64_PIL_H -#define _SPARC64_PIL_H - -/* To avoid some locking problems, we hard allocate certain PILs - * for SMP cross call messages that must do a etrap/rtrap. - * - * A local_irq_disable() does not block the cross call delivery, so - * when SMP locking is an issue we reschedule the event into a PIL - * interrupt which is blocked by local_irq_disable(). - * - * In fact any XCALL which has to etrap/rtrap has a problem because - * it is difficult to prevent rtrap from running BH's, and that would - * need to be done if the XCALL arrived while %pil==15. - */ -#define PIL_SMP_CALL_FUNC 1 -#define PIL_SMP_RECEIVE_SIGNAL 2 -#define PIL_SMP_CAPTURE 3 -#define PIL_SMP_CTX_NEW_VERSION 4 -#define PIL_DEVICE_IRQ 5 - -#endif /* !(_SPARC64_PIL_H) */ +#include diff --git a/include/asm-sparc64/reboot.h b/include/asm-sparc64/reboot.h index 3f3f43f5be5e..0d72eb811cc8 100644 --- a/include/asm-sparc64/reboot.h +++ b/include/asm-sparc64/reboot.h @@ -1,6 +1 @@ -#ifndef _SPARC64_REBOOT_H -#define _SPARC64_REBOOT_H - -extern void machine_alt_power_off(void); - -#endif /* _SPARC64_REBOOT_H */ +#include diff --git a/include/asm-sparc64/rwsem-const.h b/include/asm-sparc64/rwsem-const.h index a303c9d64d84..2a1de315c86a 100644 --- a/include/asm-sparc64/rwsem-const.h +++ b/include/asm-sparc64/rwsem-const.h @@ -1,12 +1 @@ -/* rwsem-const.h: RW semaphore counter constants. */ -#ifndef _SPARC64_RWSEM_CONST_H -#define _SPARC64_RWSEM_CONST_H - -#define RWSEM_UNLOCKED_VALUE 0x00000000 -#define RWSEM_ACTIVE_BIAS 0x00000001 -#define RWSEM_ACTIVE_MASK 0x0000ffff -#define RWSEM_WAITING_BIAS 0xffff0000 -#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS -#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) - -#endif /* _SPARC64_RWSEM_CONST_H */ +#include diff --git a/include/asm-sparc64/rwsem.h b/include/asm-sparc64/rwsem.h index 1dc129ac2feb..6943c56ed087 100644 --- a/include/asm-sparc64/rwsem.h +++ b/include/asm-sparc64/rwsem.h @@ -1,84 +1 @@ -/* - * rwsem.h: R/W semaphores implemented using CAS - * - * Written by David S. Miller (davem@redhat.com), 2001. - * Derived from asm-i386/rwsem.h - */ -#ifndef _SPARC64_RWSEM_H -#define _SPARC64_RWSEM_H - -#ifndef _LINUX_RWSEM_H -#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead" -#endif - -#ifdef __KERNEL__ - -#include -#include -#include - -struct rwsem_waiter; - -struct rw_semaphore { - signed int count; - spinlock_t wait_lock; - struct list_head wait_list; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif -}; - -#ifdef CONFIG_DEBUG_LOCK_ALLOC -# define __RWSEM_DEP_MAP_INIT(lockname) , .dep_map = { .name = #lockname } -#else -# define __RWSEM_DEP_MAP_INIT(lockname) -#endif - -#define __RWSEM_INITIALIZER(name) \ -{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) \ - __RWSEM_DEP_MAP_INIT(name) } - -#define DECLARE_RWSEM(name) \ - struct rw_semaphore name = __RWSEM_INITIALIZER(name) - -extern void __init_rwsem(struct rw_semaphore *sem, const char *name, - struct lock_class_key *key); - -#define init_rwsem(sem) \ -do { \ - static struct lock_class_key __key; \ - \ - __init_rwsem((sem), #sem, &__key); \ -} while (0) - -extern void __down_read(struct rw_semaphore *sem); -extern int __down_read_trylock(struct rw_semaphore *sem); -extern void __down_write(struct rw_semaphore *sem); -extern int __down_write_trylock(struct rw_semaphore *sem); -extern void __up_read(struct rw_semaphore *sem); -extern void __up_write(struct rw_semaphore *sem); -extern void __downgrade_write(struct rw_semaphore *sem); - -static inline void __down_write_nested(struct rw_semaphore *sem, int subclass) -{ - __down_write(sem); -} - -static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem) -{ - return atomic_add_return(delta, (atomic_t *)(&sem->count)); -} - -static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem) -{ - atomic_add(delta, (atomic_t *)(&sem->count)); -} - -static inline int rwsem_is_locked(struct rw_semaphore *sem) -{ - return (sem->count != 0); -} - -#endif /* __KERNEL__ */ - -#endif /* _SPARC64_RWSEM_H */ +#include diff --git a/include/asm-sparc64/scratchpad.h b/include/asm-sparc64/scratchpad.h index 5e8b01fb3343..23675f6a915a 100644 --- a/include/asm-sparc64/scratchpad.h +++ b/include/asm-sparc64/scratchpad.h @@ -1,14 +1 @@ -#ifndef _SPARC64_SCRATCHPAD_H -#define _SPARC64_SCRATCHPAD_H - -/* Sun4v scratchpad registers, accessed via ASI_SCRATCHPAD. */ - -#define SCRATCHPAD_MMU_MISS 0x00 /* Shared with OBP - set by OBP */ -#define SCRATCHPAD_CPUID 0x08 /* Shared with OBP - set by hypervisor */ -#define SCRATCHPAD_UTSBREG1 0x10 -#define SCRATCHPAD_UTSBREG2 0x18 - /* 0x20 and 0x28, hypervisor only... */ -#define SCRATCHPAD_UNUSED1 0x30 -#define SCRATCHPAD_UNUSED2 0x38 /* Reserved for OBP */ - -#endif /* !(_SPARC64_SCRATCHPAD_H) */ +#include diff --git a/include/asm-sparc64/seccomp.h b/include/asm-sparc64/seccomp.h index 7fcd9968192b..f22f02a08a61 100644 --- a/include/asm-sparc64/seccomp.h +++ b/include/asm-sparc64/seccomp.h @@ -1,21 +1 @@ -#ifndef _ASM_SECCOMP_H - -#include /* already defines TIF_32BIT */ - -#ifndef TIF_32BIT -#error "unexpected TIF_32BIT on sparc64" -#endif - -#include - -#define __NR_seccomp_read __NR_read -#define __NR_seccomp_write __NR_write -#define __NR_seccomp_exit __NR_exit -#define __NR_seccomp_sigreturn __NR_rt_sigreturn - -#define __NR_seccomp_read_32 __NR_read -#define __NR_seccomp_write_32 __NR_write -#define __NR_seccomp_exit_32 __NR_exit -#define __NR_seccomp_sigreturn_32 __NR_sigreturn - -#endif /* _ASM_SECCOMP_H */ +#include diff --git a/include/asm-sparc64/sfafsr.h b/include/asm-sparc64/sfafsr.h index e96137b04a4f..8036fc377a4d 100644 --- a/include/asm-sparc64/sfafsr.h +++ b/include/asm-sparc64/sfafsr.h @@ -1,82 +1 @@ -#ifndef _SPARC64_SFAFSR_H -#define _SPARC64_SFAFSR_H - -#include - -/* Spitfire Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */ - -#define SFAFSR_ME (_AC(1,UL) << SFAFSR_ME_SHIFT) -#define SFAFSR_ME_SHIFT 32 -#define SFAFSR_PRIV (_AC(1,UL) << SFAFSR_PRIV_SHIFT) -#define SFAFSR_PRIV_SHIFT 31 -#define SFAFSR_ISAP (_AC(1,UL) << SFAFSR_ISAP_SHIFT) -#define SFAFSR_ISAP_SHIFT 30 -#define SFAFSR_ETP (_AC(1,UL) << SFAFSR_ETP_SHIFT) -#define SFAFSR_ETP_SHIFT 29 -#define SFAFSR_IVUE (_AC(1,UL) << SFAFSR_IVUE_SHIFT) -#define SFAFSR_IVUE_SHIFT 28 -#define SFAFSR_TO (_AC(1,UL) << SFAFSR_TO_SHIFT) -#define SFAFSR_TO_SHIFT 27 -#define SFAFSR_BERR (_AC(1,UL) << SFAFSR_BERR_SHIFT) -#define SFAFSR_BERR_SHIFT 26 -#define SFAFSR_LDP (_AC(1,UL) << SFAFSR_LDP_SHIFT) -#define SFAFSR_LDP_SHIFT 25 -#define SFAFSR_CP (_AC(1,UL) << SFAFSR_CP_SHIFT) -#define SFAFSR_CP_SHIFT 24 -#define SFAFSR_WP (_AC(1,UL) << SFAFSR_WP_SHIFT) -#define SFAFSR_WP_SHIFT 23 -#define SFAFSR_EDP (_AC(1,UL) << SFAFSR_EDP_SHIFT) -#define SFAFSR_EDP_SHIFT 22 -#define SFAFSR_UE (_AC(1,UL) << SFAFSR_UE_SHIFT) -#define SFAFSR_UE_SHIFT 21 -#define SFAFSR_CE (_AC(1,UL) << SFAFSR_CE_SHIFT) -#define SFAFSR_CE_SHIFT 20 -#define SFAFSR_ETS (_AC(0xf,UL) << SFAFSR_ETS_SHIFT) -#define SFAFSR_ETS_SHIFT 16 -#define SFAFSR_PSYND (_AC(0xffff,UL) << SFAFSR_PSYND_SHIFT) -#define SFAFSR_PSYND_SHIFT 0 - -/* UDB Error Register, ASI=0x7f VA<63:0>=0x0(High),0x18(Low) for read - * ASI=0x77 VA<63:0>=0x0(High),0x18(Low) for write - */ - -#define UDBE_UE (_AC(1,UL) << 9) -#define UDBE_CE (_AC(1,UL) << 8) -#define UDBE_E_SYNDR (_AC(0xff,UL) << 0) - -/* The trap handlers for asynchronous errors encode the AFSR and - * other pieces of information into a 64-bit argument for C code - * encoded as follows: - * - * ----------------------------------------------- - * | UDB_H | UDB_L | TL>1 | TT | AFSR | - * ----------------------------------------------- - * 63 54 53 44 42 41 33 32 0 - * - * The AFAR is passed in unchanged. - */ -#define SFSTAT_UDBH_MASK (_AC(0x3ff,UL) << SFSTAT_UDBH_SHIFT) -#define SFSTAT_UDBH_SHIFT 54 -#define SFSTAT_UDBL_MASK (_AC(0x3ff,UL) << SFSTAT_UDBH_SHIFT) -#define SFSTAT_UDBL_SHIFT 44 -#define SFSTAT_TL_GT_ONE (_AC(1,UL) << SFSTAT_TL_GT_ONE_SHIFT) -#define SFSTAT_TL_GT_ONE_SHIFT 42 -#define SFSTAT_TRAP_TYPE (_AC(0x1FF,UL) << SFSTAT_TRAP_TYPE_SHIFT) -#define SFSTAT_TRAP_TYPE_SHIFT 33 -#define SFSTAT_AFSR_MASK (_AC(0x1ffffffff,UL) << SFSTAT_AFSR_SHIFT) -#define SFSTAT_AFSR_SHIFT 0 - -/* ESTATE Error Enable Register, ASI=0x4b VA<63:0>=0x0 */ -#define ESTATE_ERR_CE 0x1 /* Correctable errors */ -#define ESTATE_ERR_NCE 0x2 /* TO, BERR, LDP, ETP, EDP, WP, UE, IVUE */ -#define ESTATE_ERR_ISAP 0x4 /* System address parity error */ -#define ESTATE_ERR_ALL (ESTATE_ERR_CE | \ - ESTATE_ERR_NCE | \ - ESTATE_ERR_ISAP) - -/* The various trap types that report using the above state. */ -#define TRAP_TYPE_IAE 0x09 /* Instruction Access Error */ -#define TRAP_TYPE_DAE 0x32 /* Data Access Error */ -#define TRAP_TYPE_CEE 0x63 /* Correctable ECC Error */ - -#endif /* _SPARC64_SFAFSR_H */ +#include diff --git a/include/asm-sparc64/sparsemem.h b/include/asm-sparc64/sparsemem.h index b99d4e4b6d28..e681f22a97ae 100644 --- a/include/asm-sparc64/sparsemem.h +++ b/include/asm-sparc64/sparsemem.h @@ -1,12 +1 @@ -#ifndef _SPARC64_SPARSEMEM_H -#define _SPARC64_SPARSEMEM_H - -#ifdef __KERNEL__ - -#define SECTION_SIZE_BITS 30 -#define MAX_PHYSADDR_BITS 42 -#define MAX_PHYSMEM_BITS 42 - -#endif /* !(__KERNEL__) */ - -#endif /* !(_SPARC64_SPARSEMEM_H) */ +#include diff --git a/include/asm-sparc64/spitfire.h b/include/asm-sparc64/spitfire.h index 985ea7e31992..4430d2fbb0dc 100644 --- a/include/asm-sparc64/spitfire.h +++ b/include/asm-sparc64/spitfire.h @@ -1,342 +1 @@ -/* spitfire.h: SpitFire/BlackBird/Cheetah inline MMU operations. - * - * Copyright (C) 1996 David S. Miller (davem@davemloft.net) - */ - -#ifndef _SPARC64_SPITFIRE_H -#define _SPARC64_SPITFIRE_H - -#include - -/* The following register addresses are accessible via ASI_DMMU - * and ASI_IMMU, that is there is a distinct and unique copy of - * each these registers for each TLB. - */ -#define TSB_TAG_TARGET 0x0000000000000000 /* All chips */ -#define TLB_SFSR 0x0000000000000018 /* All chips */ -#define TSB_REG 0x0000000000000028 /* All chips */ -#define TLB_TAG_ACCESS 0x0000000000000030 /* All chips */ -#define VIRT_WATCHPOINT 0x0000000000000038 /* All chips */ -#define PHYS_WATCHPOINT 0x0000000000000040 /* All chips */ -#define TSB_EXTENSION_P 0x0000000000000048 /* Ultra-III and later */ -#define TSB_EXTENSION_S 0x0000000000000050 /* Ultra-III and later, D-TLB only */ -#define TSB_EXTENSION_N 0x0000000000000058 /* Ultra-III and later */ -#define TLB_TAG_ACCESS_EXT 0x0000000000000060 /* Ultra-III+ and later */ - -/* These registers only exist as one entity, and are accessed - * via ASI_DMMU only. - */ -#define PRIMARY_CONTEXT 0x0000000000000008 -#define SECONDARY_CONTEXT 0x0000000000000010 -#define DMMU_SFAR 0x0000000000000020 -#define VIRT_WATCHPOINT 0x0000000000000038 -#define PHYS_WATCHPOINT 0x0000000000000040 - -#define SPITFIRE_HIGHEST_LOCKED_TLBENT (64 - 1) -#define CHEETAH_HIGHEST_LOCKED_TLBENT (16 - 1) - -#define L1DCACHE_SIZE 0x4000 - -#define SUN4V_CHIP_INVALID 0x00 -#define SUN4V_CHIP_NIAGARA1 0x01 -#define SUN4V_CHIP_NIAGARA2 0x02 -#define SUN4V_CHIP_UNKNOWN 0xff - -#ifndef __ASSEMBLY__ - -enum ultra_tlb_layout { - spitfire = 0, - cheetah = 1, - cheetah_plus = 2, - hypervisor = 3, -}; - -extern enum ultra_tlb_layout tlb_type; - -extern int sun4v_chip_type; - -extern int cheetah_pcache_forced_on; -extern void cheetah_enable_pcache(void); - -#define sparc64_highest_locked_tlbent() \ - (tlb_type == spitfire ? \ - SPITFIRE_HIGHEST_LOCKED_TLBENT : \ - CHEETAH_HIGHEST_LOCKED_TLBENT) - -extern int num_kernel_image_mappings; - -/* The data cache is write through, so this just invalidates the - * specified line. - */ -static inline void spitfire_put_dcache_tag(unsigned long addr, unsigned long tag) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (tag), "r" (addr), "i" (ASI_DCACHE_TAG)); -} - -/* The instruction cache lines are flushed with this, but note that - * this does not flush the pipeline. It is possible for a line to - * get flushed but stale instructions to still be in the pipeline, - * a flush instruction (to any address) is sufficient to handle - * this issue after the line is invalidated. - */ -static inline void spitfire_put_icache_tag(unsigned long addr, unsigned long tag) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (tag), "r" (addr), "i" (ASI_IC_TAG)); -} - -static inline unsigned long spitfire_get_dtlb_data(int entry) -{ - unsigned long data; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (data) - : "r" (entry << 3), "i" (ASI_DTLB_DATA_ACCESS)); - - /* Clear TTE diag bits. */ - data &= ~0x0003fe0000000000UL; - - return data; -} - -static inline unsigned long spitfire_get_dtlb_tag(int entry) -{ - unsigned long tag; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (tag) - : "r" (entry << 3), "i" (ASI_DTLB_TAG_READ)); - return tag; -} - -static inline void spitfire_put_dtlb_data(int entry, unsigned long data) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (data), "r" (entry << 3), - "i" (ASI_DTLB_DATA_ACCESS)); -} - -static inline unsigned long spitfire_get_itlb_data(int entry) -{ - unsigned long data; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (data) - : "r" (entry << 3), "i" (ASI_ITLB_DATA_ACCESS)); - - /* Clear TTE diag bits. */ - data &= ~0x0003fe0000000000UL; - - return data; -} - -static inline unsigned long spitfire_get_itlb_tag(int entry) -{ - unsigned long tag; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (tag) - : "r" (entry << 3), "i" (ASI_ITLB_TAG_READ)); - return tag; -} - -static inline void spitfire_put_itlb_data(int entry, unsigned long data) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (data), "r" (entry << 3), - "i" (ASI_ITLB_DATA_ACCESS)); -} - -static inline void spitfire_flush_dtlb_nucleus_page(unsigned long page) -{ - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (page | 0x20), "i" (ASI_DMMU_DEMAP)); -} - -static inline void spitfire_flush_itlb_nucleus_page(unsigned long page) -{ - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (page | 0x20), "i" (ASI_IMMU_DEMAP)); -} - -/* Cheetah has "all non-locked" tlb flushes. */ -static inline void cheetah_flush_dtlb_all(void) -{ - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (0x80), "i" (ASI_DMMU_DEMAP)); -} - -static inline void cheetah_flush_itlb_all(void) -{ - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (0x80), "i" (ASI_IMMU_DEMAP)); -} - -/* Cheetah has a 4-tlb layout so direct access is a bit different. - * The first two TLBs are fully assosciative, hold 16 entries, and are - * used only for locked and >8K sized translations. One exists for - * data accesses and one for instruction accesses. - * - * The third TLB is for data accesses to 8K non-locked translations, is - * 2 way assosciative, and holds 512 entries. The fourth TLB is for - * instruction accesses to 8K non-locked translations, is 2 way - * assosciative, and holds 128 entries. - * - * Cheetah has some bug where bogus data can be returned from - * ASI_{D,I}TLB_DATA_ACCESS loads, doing the load twice fixes - * the problem for me. -DaveM - */ -static inline unsigned long cheetah_get_ldtlb_data(int entry) -{ - unsigned long data; - - __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" - "ldxa [%1] %2, %0" - : "=r" (data) - : "r" ((0 << 16) | (entry << 3)), - "i" (ASI_DTLB_DATA_ACCESS)); - - return data; -} - -static inline unsigned long cheetah_get_litlb_data(int entry) -{ - unsigned long data; - - __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" - "ldxa [%1] %2, %0" - : "=r" (data) - : "r" ((0 << 16) | (entry << 3)), - "i" (ASI_ITLB_DATA_ACCESS)); - - return data; -} - -static inline unsigned long cheetah_get_ldtlb_tag(int entry) -{ - unsigned long tag; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (tag) - : "r" ((0 << 16) | (entry << 3)), - "i" (ASI_DTLB_TAG_READ)); - - return tag; -} - -static inline unsigned long cheetah_get_litlb_tag(int entry) -{ - unsigned long tag; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (tag) - : "r" ((0 << 16) | (entry << 3)), - "i" (ASI_ITLB_TAG_READ)); - - return tag; -} - -static inline void cheetah_put_ldtlb_data(int entry, unsigned long data) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (data), - "r" ((0 << 16) | (entry << 3)), - "i" (ASI_DTLB_DATA_ACCESS)); -} - -static inline void cheetah_put_litlb_data(int entry, unsigned long data) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (data), - "r" ((0 << 16) | (entry << 3)), - "i" (ASI_ITLB_DATA_ACCESS)); -} - -static inline unsigned long cheetah_get_dtlb_data(int entry, int tlb) -{ - unsigned long data; - - __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" - "ldxa [%1] %2, %0" - : "=r" (data) - : "r" ((tlb << 16) | (entry << 3)), "i" (ASI_DTLB_DATA_ACCESS)); - - return data; -} - -static inline unsigned long cheetah_get_dtlb_tag(int entry, int tlb) -{ - unsigned long tag; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (tag) - : "r" ((tlb << 16) | (entry << 3)), "i" (ASI_DTLB_TAG_READ)); - return tag; -} - -static inline void cheetah_put_dtlb_data(int entry, unsigned long data, int tlb) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (data), - "r" ((tlb << 16) | (entry << 3)), - "i" (ASI_DTLB_DATA_ACCESS)); -} - -static inline unsigned long cheetah_get_itlb_data(int entry) -{ - unsigned long data; - - __asm__ __volatile__("ldxa [%1] %2, %%g0\n\t" - "ldxa [%1] %2, %0" - : "=r" (data) - : "r" ((2 << 16) | (entry << 3)), - "i" (ASI_ITLB_DATA_ACCESS)); - - return data; -} - -static inline unsigned long cheetah_get_itlb_tag(int entry) -{ - unsigned long tag; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (tag) - : "r" ((2 << 16) | (entry << 3)), "i" (ASI_ITLB_TAG_READ)); - return tag; -} - -static inline void cheetah_put_itlb_data(int entry, unsigned long data) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* No outputs */ - : "r" (data), "r" ((2 << 16) | (entry << 3)), - "i" (ASI_ITLB_DATA_ACCESS)); -} - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(_SPARC64_SPITFIRE_H) */ +#include diff --git a/include/asm-sparc64/sstate.h b/include/asm-sparc64/sstate.h index a7c35dbcb281..97720ce2fd43 100644 --- a/include/asm-sparc64/sstate.h +++ b/include/asm-sparc64/sstate.h @@ -1,13 +1 @@ -#ifndef _SPARC64_SSTATE_H -#define _SPARC64_SSTATE_H - -extern void sstate_booting(void); -extern void sstate_running(void); -extern void sstate_halt(void); -extern void sstate_poweroff(void); -extern void sstate_panic(void); -extern void sstate_reboot(void); - -extern void sun4v_sstate_init(void); - -#endif /* _SPARC64_SSTATE_H */ +#include diff --git a/include/asm-sparc64/stacktrace.h b/include/asm-sparc64/stacktrace.h index 6cee39adf6d6..adc9b92c0ef1 100644 --- a/include/asm-sparc64/stacktrace.h +++ b/include/asm-sparc64/stacktrace.h @@ -1,6 +1 @@ -#ifndef _SPARC64_STACKTRACE_H -#define _SPARC64_STACKTRACE_H - -extern void stack_trace_flush(void); - -#endif /* _SPARC64_STACKTRACE_H */ +#include diff --git a/include/asm-sparc64/starfire.h b/include/asm-sparc64/starfire.h index 07bafd31e33c..db97daa3bed4 100644 --- a/include/asm-sparc64/starfire.h +++ b/include/asm-sparc64/starfire.h @@ -1,21 +1 @@ -/* - * starfire.h: Group all starfire specific code together. - * - * Copyright (C) 2000 Anton Blanchard (anton@samba.org) - */ - -#ifndef _SPARC64_STARFIRE_H -#define _SPARC64_STARFIRE_H - -#ifndef __ASSEMBLY__ - -extern int this_is_starfire; - -extern void check_if_starfire(void); -extern void starfire_cpu_setup(void); -extern int starfire_hard_smp_processor_id(void); -extern void starfire_hookup(int); -extern unsigned int starfire_translate(unsigned long imap, unsigned int upaid); - -#endif -#endif +#include diff --git a/include/asm-sparc64/syscalls.h b/include/asm-sparc64/syscalls.h index 45a43f637a14..3477b16e30ca 100644 --- a/include/asm-sparc64/syscalls.h +++ b/include/asm-sparc64/syscalls.h @@ -1,13 +1 @@ -#ifndef _SPARC64_SYSCALLS_H -#define _SPARC64_SYSCALLS_H - -struct pt_regs; - -extern asmlinkage long sparc_do_fork(unsigned long clone_flags, - unsigned long stack_start, - struct pt_regs *regs, - unsigned long stack_size); - -extern asmlinkage int sparc_execve(struct pt_regs *regs); - -#endif /* _SPARC64_SYSCALLS_H */ +#include diff --git a/include/asm-sparc64/tsb.h b/include/asm-sparc64/tsb.h index 76e4299dd9bc..3677a302ea3e 100644 --- a/include/asm-sparc64/tsb.h +++ b/include/asm-sparc64/tsb.h @@ -1,283 +1 @@ -#ifndef _SPARC64_TSB_H -#define _SPARC64_TSB_H - -/* The sparc64 TSB is similar to the powerpc hashtables. It's a - * power-of-2 sized table of TAG/PTE pairs. The cpu precomputes - * pointers into this table for 8K and 64K page sizes, and also a - * comparison TAG based upon the virtual address and context which - * faults. - * - * TLB miss trap handler software does the actual lookup via something - * of the form: - * - * ldxa [%g0] ASI_{D,I}MMU_TSB_8KB_PTR, %g1 - * ldxa [%g0] ASI_{D,I}MMU, %g6 - * sllx %g6, 22, %g6 - * srlx %g6, 22, %g6 - * ldda [%g1] ASI_NUCLEUS_QUAD_LDD, %g4 - * cmp %g4, %g6 - * bne,pn %xcc, tsb_miss_{d,i}tlb - * mov FAULT_CODE_{D,I}TLB, %g3 - * stxa %g5, [%g0] ASI_{D,I}TLB_DATA_IN - * retry - * - * - * Each 16-byte slot of the TSB is the 8-byte tag and then the 8-byte - * PTE. The TAG is of the same layout as the TLB TAG TARGET mmu - * register which is: - * - * ------------------------------------------------- - * | - | CONTEXT | - | VADDR bits 63:22 | - * ------------------------------------------------- - * 63 61 60 48 47 42 41 0 - * - * But actually, since we use per-mm TSB's, we zero out the CONTEXT - * field. - * - * Like the powerpc hashtables we need to use locking in order to - * synchronize while we update the entries. PTE updates need locking - * as well. - * - * We need to carefully choose a lock bits for the TSB entry. We - * choose to use bit 47 in the tag. Also, since we never map anything - * at page zero in context zero, we use zero as an invalid tag entry. - * When the lock bit is set, this forces a tag comparison failure. - */ - -#define TSB_TAG_LOCK_BIT 47 -#define TSB_TAG_LOCK_HIGH (1 << (TSB_TAG_LOCK_BIT - 32)) - -#define TSB_TAG_INVALID_BIT 46 -#define TSB_TAG_INVALID_HIGH (1 << (TSB_TAG_INVALID_BIT - 32)) - -#define TSB_MEMBAR membar #StoreStore - -/* Some cpus support physical address quad loads. We want to use - * those if possible so we don't need to hard-lock the TSB mapping - * into the TLB. We encode some instruction patching in order to - * support this. - * - * The kernel TSB is locked into the TLB by virtue of being in the - * kernel image, so we don't play these games for swapper_tsb access. - */ -#ifndef __ASSEMBLY__ -struct tsb_ldquad_phys_patch_entry { - unsigned int addr; - unsigned int sun4u_insn; - unsigned int sun4v_insn; -}; -extern struct tsb_ldquad_phys_patch_entry __tsb_ldquad_phys_patch, - __tsb_ldquad_phys_patch_end; - -struct tsb_phys_patch_entry { - unsigned int addr; - unsigned int insn; -}; -extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end; -#endif -#define TSB_LOAD_QUAD(TSB, REG) \ -661: ldda [TSB] ASI_NUCLEUS_QUAD_LDD, REG; \ - .section .tsb_ldquad_phys_patch, "ax"; \ - .word 661b; \ - ldda [TSB] ASI_QUAD_LDD_PHYS, REG; \ - ldda [TSB] ASI_QUAD_LDD_PHYS_4V, REG; \ - .previous - -#define TSB_LOAD_TAG_HIGH(TSB, REG) \ -661: lduwa [TSB] ASI_N, REG; \ - .section .tsb_phys_patch, "ax"; \ - .word 661b; \ - lduwa [TSB] ASI_PHYS_USE_EC, REG; \ - .previous - -#define TSB_LOAD_TAG(TSB, REG) \ -661: ldxa [TSB] ASI_N, REG; \ - .section .tsb_phys_patch, "ax"; \ - .word 661b; \ - ldxa [TSB] ASI_PHYS_USE_EC, REG; \ - .previous - -#define TSB_CAS_TAG_HIGH(TSB, REG1, REG2) \ -661: casa [TSB] ASI_N, REG1, REG2; \ - .section .tsb_phys_patch, "ax"; \ - .word 661b; \ - casa [TSB] ASI_PHYS_USE_EC, REG1, REG2; \ - .previous - -#define TSB_CAS_TAG(TSB, REG1, REG2) \ -661: casxa [TSB] ASI_N, REG1, REG2; \ - .section .tsb_phys_patch, "ax"; \ - .word 661b; \ - casxa [TSB] ASI_PHYS_USE_EC, REG1, REG2; \ - .previous - -#define TSB_STORE(ADDR, VAL) \ -661: stxa VAL, [ADDR] ASI_N; \ - .section .tsb_phys_patch, "ax"; \ - .word 661b; \ - stxa VAL, [ADDR] ASI_PHYS_USE_EC; \ - .previous - -#define TSB_LOCK_TAG(TSB, REG1, REG2) \ -99: TSB_LOAD_TAG_HIGH(TSB, REG1); \ - sethi %hi(TSB_TAG_LOCK_HIGH), REG2;\ - andcc REG1, REG2, %g0; \ - bne,pn %icc, 99b; \ - nop; \ - TSB_CAS_TAG_HIGH(TSB, REG1, REG2); \ - cmp REG1, REG2; \ - bne,pn %icc, 99b; \ - nop; \ - TSB_MEMBAR - -#define TSB_WRITE(TSB, TTE, TAG) \ - add TSB, 0x8, TSB; \ - TSB_STORE(TSB, TTE); \ - sub TSB, 0x8, TSB; \ - TSB_MEMBAR; \ - TSB_STORE(TSB, TAG); - -#define KTSB_LOAD_QUAD(TSB, REG) \ - ldda [TSB] ASI_NUCLEUS_QUAD_LDD, REG; - -#define KTSB_STORE(ADDR, VAL) \ - stxa VAL, [ADDR] ASI_N; - -#define KTSB_LOCK_TAG(TSB, REG1, REG2) \ -99: lduwa [TSB] ASI_N, REG1; \ - sethi %hi(TSB_TAG_LOCK_HIGH), REG2;\ - andcc REG1, REG2, %g0; \ - bne,pn %icc, 99b; \ - nop; \ - casa [TSB] ASI_N, REG1, REG2;\ - cmp REG1, REG2; \ - bne,pn %icc, 99b; \ - nop; \ - TSB_MEMBAR - -#define KTSB_WRITE(TSB, TTE, TAG) \ - add TSB, 0x8, TSB; \ - stxa TTE, [TSB] ASI_N; \ - sub TSB, 0x8, TSB; \ - TSB_MEMBAR; \ - stxa TAG, [TSB] ASI_N; - - /* Do a kernel page table walk. Leaves physical PTE pointer in - * REG1. Jumps to FAIL_LABEL on early page table walk termination. - * VADDR will not be clobbered, but REG2 will. - */ -#define KERN_PGTABLE_WALK(VADDR, REG1, REG2, FAIL_LABEL) \ - sethi %hi(swapper_pg_dir), REG1; \ - or REG1, %lo(swapper_pg_dir), REG1; \ - sllx VADDR, 64 - (PGDIR_SHIFT + PGDIR_BITS), REG2; \ - srlx REG2, 64 - PAGE_SHIFT, REG2; \ - andn REG2, 0x3, REG2; \ - lduw [REG1 + REG2], REG1; \ - brz,pn REG1, FAIL_LABEL; \ - sllx VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \ - srlx REG2, 64 - PAGE_SHIFT, REG2; \ - sllx REG1, 11, REG1; \ - andn REG2, 0x3, REG2; \ - lduwa [REG1 + REG2] ASI_PHYS_USE_EC, REG1; \ - brz,pn REG1, FAIL_LABEL; \ - sllx VADDR, 64 - PMD_SHIFT, REG2; \ - srlx REG2, 64 - PAGE_SHIFT, REG2; \ - sllx REG1, 11, REG1; \ - andn REG2, 0x7, REG2; \ - add REG1, REG2, REG1; - - /* Do a user page table walk in MMU globals. Leaves physical PTE - * pointer in REG1. Jumps to FAIL_LABEL on early page table walk - * termination. Physical base of page tables is in PHYS_PGD which - * will not be modified. - * - * VADDR will not be clobbered, but REG1 and REG2 will. - */ -#define USER_PGTABLE_WALK_TL1(VADDR, PHYS_PGD, REG1, REG2, FAIL_LABEL) \ - sllx VADDR, 64 - (PGDIR_SHIFT + PGDIR_BITS), REG2; \ - srlx REG2, 64 - PAGE_SHIFT, REG2; \ - andn REG2, 0x3, REG2; \ - lduwa [PHYS_PGD + REG2] ASI_PHYS_USE_EC, REG1; \ - brz,pn REG1, FAIL_LABEL; \ - sllx VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \ - srlx REG2, 64 - PAGE_SHIFT, REG2; \ - sllx REG1, 11, REG1; \ - andn REG2, 0x3, REG2; \ - lduwa [REG1 + REG2] ASI_PHYS_USE_EC, REG1; \ - brz,pn REG1, FAIL_LABEL; \ - sllx VADDR, 64 - PMD_SHIFT, REG2; \ - srlx REG2, 64 - PAGE_SHIFT, REG2; \ - sllx REG1, 11, REG1; \ - andn REG2, 0x7, REG2; \ - add REG1, REG2, REG1; - -/* Lookup a OBP mapping on VADDR in the prom_trans[] table at TL>0. - * If no entry is found, FAIL_LABEL will be branched to. On success - * the resulting PTE value will be left in REG1. VADDR is preserved - * by this routine. - */ -#define OBP_TRANS_LOOKUP(VADDR, REG1, REG2, REG3, FAIL_LABEL) \ - sethi %hi(prom_trans), REG1; \ - or REG1, %lo(prom_trans), REG1; \ -97: ldx [REG1 + 0x00], REG2; \ - brz,pn REG2, FAIL_LABEL; \ - nop; \ - ldx [REG1 + 0x08], REG3; \ - add REG2, REG3, REG3; \ - cmp REG2, VADDR; \ - bgu,pt %xcc, 98f; \ - cmp VADDR, REG3; \ - bgeu,pt %xcc, 98f; \ - ldx [REG1 + 0x10], REG3; \ - sub VADDR, REG2, REG2; \ - ba,pt %xcc, 99f; \ - add REG3, REG2, REG1; \ -98: ba,pt %xcc, 97b; \ - add REG1, (3 * 8), REG1; \ -99: - - /* We use a 32K TSB for the whole kernel, this allows to - * handle about 16MB of modules and vmalloc mappings without - * incurring many hash conflicts. - */ -#define KERNEL_TSB_SIZE_BYTES (32 * 1024) -#define KERNEL_TSB_NENTRIES \ - (KERNEL_TSB_SIZE_BYTES / 16) -#define KERNEL_TSB4M_NENTRIES 4096 - - /* Do a kernel TSB lookup at tl>0 on VADDR+TAG, branch to OK_LABEL - * on TSB hit. REG1, REG2, REG3, and REG4 are used as temporaries - * and the found TTE will be left in REG1. REG3 and REG4 must - * be an even/odd pair of registers. - * - * VADDR and TAG will be preserved and not clobbered by this macro. - */ -#define KERN_TSB_LOOKUP_TL1(VADDR, TAG, REG1, REG2, REG3, REG4, OK_LABEL) \ - sethi %hi(swapper_tsb), REG1; \ - or REG1, %lo(swapper_tsb), REG1; \ - srlx VADDR, PAGE_SHIFT, REG2; \ - and REG2, (KERNEL_TSB_NENTRIES - 1), REG2; \ - sllx REG2, 4, REG2; \ - add REG1, REG2, REG2; \ - KTSB_LOAD_QUAD(REG2, REG3); \ - cmp REG3, TAG; \ - be,a,pt %xcc, OK_LABEL; \ - mov REG4, REG1; - -#ifndef CONFIG_DEBUG_PAGEALLOC - /* This version uses a trick, the TAG is already (VADDR >> 22) so - * we can make use of that for the index computation. - */ -#define KERN_TSB4M_LOOKUP_TL1(TAG, REG1, REG2, REG3, REG4, OK_LABEL) \ - sethi %hi(swapper_4m_tsb), REG1; \ - or REG1, %lo(swapper_4m_tsb), REG1; \ - and TAG, (KERNEL_TSB4M_NENTRIES - 1), REG2; \ - sllx REG2, 4, REG2; \ - add REG1, REG2, REG2; \ - KTSB_LOAD_QUAD(REG2, REG3); \ - cmp REG3, TAG; \ - be,a,pt %xcc, OK_LABEL; \ - mov REG4, REG1; -#endif - -#endif /* !(_SPARC64_TSB_H) */ +#include diff --git a/include/asm-sparc64/ttable.h b/include/asm-sparc64/ttable.h index 0ba199587e07..a550f1bf6f9b 100644 --- a/include/asm-sparc64/ttable.h +++ b/include/asm-sparc64/ttable.h @@ -1,658 +1 @@ -#ifndef _SPARC64_TTABLE_H -#define _SPARC64_TTABLE_H - -#include - -#ifdef __ASSEMBLY__ -#include -#endif - -#define BOOT_KERNEL b sparc64_boot; nop; nop; nop; nop; nop; nop; nop; - -/* We need a "cleaned" instruction... */ -#define CLEAN_WINDOW \ - rdpr %cleanwin, %l0; add %l0, 1, %l0; \ - wrpr %l0, 0x0, %cleanwin; \ - clr %o0; clr %o1; clr %o2; clr %o3; \ - clr %o4; clr %o5; clr %o6; clr %o7; \ - clr %l0; clr %l1; clr %l2; clr %l3; \ - clr %l4; clr %l5; clr %l6; clr %l7; \ - retry; \ - nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop; - -#define TRAP(routine) \ - sethi %hi(109f), %g7; \ - ba,pt %xcc, etrap; \ -109: or %g7, %lo(109b), %g7; \ - call routine; \ - add %sp, PTREGS_OFF, %o0; \ - ba,pt %xcc, rtrap; \ - nop; \ - nop; - -#define TRAP_7INSNS(routine) \ - sethi %hi(109f), %g7; \ - ba,pt %xcc, etrap; \ -109: or %g7, %lo(109b), %g7; \ - call routine; \ - add %sp, PTREGS_OFF, %o0; \ - ba,pt %xcc, rtrap; \ - nop; - -#define TRAP_SAVEFPU(routine) \ - sethi %hi(109f), %g7; \ - ba,pt %xcc, do_fptrap; \ -109: or %g7, %lo(109b), %g7; \ - call routine; \ - add %sp, PTREGS_OFF, %o0; \ - ba,pt %xcc, rtrap; \ - nop; \ - nop; - -#define TRAP_NOSAVE(routine) \ - ba,pt %xcc, routine; \ - nop; \ - nop; nop; nop; nop; nop; nop; - -#define TRAP_NOSAVE_7INSNS(routine) \ - ba,pt %xcc, routine; \ - nop; \ - nop; nop; nop; nop; nop; - -#define TRAPTL1(routine) \ - sethi %hi(109f), %g7; \ - ba,pt %xcc, etraptl1; \ -109: or %g7, %lo(109b), %g7; \ - call routine; \ - add %sp, PTREGS_OFF, %o0; \ - ba,pt %xcc, rtrap; \ - nop; \ - nop; - -#define TRAP_ARG(routine, arg) \ - sethi %hi(109f), %g7; \ - ba,pt %xcc, etrap; \ -109: or %g7, %lo(109b), %g7; \ - add %sp, PTREGS_OFF, %o0; \ - call routine; \ - mov arg, %o1; \ - ba,pt %xcc, rtrap; \ - nop; - -#define TRAPTL1_ARG(routine, arg) \ - sethi %hi(109f), %g7; \ - ba,pt %xcc, etraptl1; \ -109: or %g7, %lo(109b), %g7; \ - add %sp, PTREGS_OFF, %o0; \ - call routine; \ - mov arg, %o1; \ - ba,pt %xcc, rtrap; \ - nop; - -#define SYSCALL_TRAP(routine, systbl) \ - rdpr %pil, %g2; \ - mov TSTATE_SYSCALL, %g3; \ - sethi %hi(109f), %g7; \ - ba,pt %xcc, etrap_syscall; \ -109: or %g7, %lo(109b), %g7; \ - sethi %hi(systbl), %l7; \ - ba,pt %xcc, routine; \ - or %l7, %lo(systbl), %l7; - -#define TRAP_UTRAP(handler,lvl) \ - mov handler, %g3; \ - ba,pt %xcc, utrap_trap; \ - mov lvl, %g4; \ - nop; \ - nop; \ - nop; \ - nop; \ - nop; - -#ifdef CONFIG_COMPAT -#define LINUX_32BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall32, sys_call_table32) -#else -#define LINUX_32BIT_SYSCALL_TRAP BTRAP(0x110) -#endif -#define LINUX_64BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall, sys_call_table64) -#define GETCC_TRAP TRAP(getcc) -#define SETCC_TRAP TRAP(setcc) -#define BREAKPOINT_TRAP TRAP(breakpoint_trap) - -#ifdef CONFIG_TRACE_IRQFLAGS - -#define TRAP_IRQ(routine, level) \ - rdpr %pil, %g2; \ - wrpr %g0, 15, %pil; \ - sethi %hi(1f-4), %g7; \ - ba,pt %xcc, etrap_irq; \ - or %g7, %lo(1f-4), %g7; \ - nop; \ - nop; \ - nop; \ - .subsection 2; \ -1: call trace_hardirqs_off; \ - nop; \ - mov level, %o0; \ - call routine; \ - add %sp, PTREGS_OFF, %o1; \ - ba,a,pt %xcc, rtrap_irq; \ - .previous; - -#else - -#define TRAP_IRQ(routine, level) \ - rdpr %pil, %g2; \ - wrpr %g0, 15, %pil; \ - ba,pt %xcc, etrap_irq; \ - rd %pc, %g7; \ - mov level, %o0; \ - call routine; \ - add %sp, PTREGS_OFF, %o1; \ - ba,a,pt %xcc, rtrap_irq; - -#endif - -#define TRAP_IVEC TRAP_NOSAVE(do_ivec) - -#define BTRAP(lvl) TRAP_ARG(bad_trap, lvl) - -#define BTRAPTL1(lvl) TRAPTL1_ARG(bad_trap_tl1, lvl) - -#define FLUSH_WINDOW_TRAP \ - ba,pt %xcc, etrap; \ - rd %pc, %g7; \ - flushw; \ - ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1; \ - add %l1, 4, %l2; \ - stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]; \ - ba,pt %xcc, rtrap; \ - stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]; - -#ifdef CONFIG_KPROBES -#define KPROBES_TRAP(lvl) TRAP_IRQ(kprobe_trap, lvl) -#else -#define KPROBES_TRAP(lvl) TRAP_ARG(bad_trap, lvl) -#endif - -#ifdef CONFIG_KGDB -#define KGDB_TRAP(lvl) TRAP_IRQ(kgdb_trap, lvl) -#else -#define KGDB_TRAP(lvl) TRAP_ARG(bad_trap, lvl) -#endif - -#define SUN4V_ITSB_MISS \ - ldxa [%g0] ASI_SCRATCHPAD, %g2; \ - ldx [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4; \ - ldx [%g2 + HV_FAULT_I_CTX_OFFSET], %g5; \ - srlx %g4, 22, %g6; \ - ba,pt %xcc, sun4v_itsb_miss; \ - nop; \ - nop; \ - nop; - -#define SUN4V_DTSB_MISS \ - ldxa [%g0] ASI_SCRATCHPAD, %g2; \ - ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4; \ - ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5; \ - srlx %g4, 22, %g6; \ - ba,pt %xcc, sun4v_dtsb_miss; \ - nop; \ - nop; \ - nop; - -/* Before touching these macros, you owe it to yourself to go and - * see how arch/sparc64/kernel/winfixup.S works... -DaveM - * - * For the user cases we used to use the %asi register, but - * it turns out that the "wr xxx, %asi" costs ~5 cycles, so - * now we use immediate ASI loads and stores instead. Kudos - * to Greg Onufer for pointing out this performance anomaly. - * - * Further note that we cannot use the g2, g4, g5, and g7 alternate - * globals in the spill routines, check out the save instruction in - * arch/sparc64/kernel/etrap.S to see what I mean about g2, and - * g4/g5 are the globals which are preserved by etrap processing - * for the caller of it. The g7 register is the return pc for - * etrap. Finally, g6 is the current thread register so we cannot - * us it in the spill handlers either. Most of these rules do not - * apply to fill processing, only g6 is not usable. - */ - -/* Normal kernel spill */ -#define SPILL_0_NORMAL \ - stx %l0, [%sp + STACK_BIAS + 0x00]; \ - stx %l1, [%sp + STACK_BIAS + 0x08]; \ - stx %l2, [%sp + STACK_BIAS + 0x10]; \ - stx %l3, [%sp + STACK_BIAS + 0x18]; \ - stx %l4, [%sp + STACK_BIAS + 0x20]; \ - stx %l5, [%sp + STACK_BIAS + 0x28]; \ - stx %l6, [%sp + STACK_BIAS + 0x30]; \ - stx %l7, [%sp + STACK_BIAS + 0x38]; \ - stx %i0, [%sp + STACK_BIAS + 0x40]; \ - stx %i1, [%sp + STACK_BIAS + 0x48]; \ - stx %i2, [%sp + STACK_BIAS + 0x50]; \ - stx %i3, [%sp + STACK_BIAS + 0x58]; \ - stx %i4, [%sp + STACK_BIAS + 0x60]; \ - stx %i5, [%sp + STACK_BIAS + 0x68]; \ - stx %i6, [%sp + STACK_BIAS + 0x70]; \ - stx %i7, [%sp + STACK_BIAS + 0x78]; \ - saved; retry; nop; nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; nop; nop; nop; nop; - -#define SPILL_0_NORMAL_ETRAP \ -etrap_kernel_spill: \ - stx %l0, [%sp + STACK_BIAS + 0x00]; \ - stx %l1, [%sp + STACK_BIAS + 0x08]; \ - stx %l2, [%sp + STACK_BIAS + 0x10]; \ - stx %l3, [%sp + STACK_BIAS + 0x18]; \ - stx %l4, [%sp + STACK_BIAS + 0x20]; \ - stx %l5, [%sp + STACK_BIAS + 0x28]; \ - stx %l6, [%sp + STACK_BIAS + 0x30]; \ - stx %l7, [%sp + STACK_BIAS + 0x38]; \ - stx %i0, [%sp + STACK_BIAS + 0x40]; \ - stx %i1, [%sp + STACK_BIAS + 0x48]; \ - stx %i2, [%sp + STACK_BIAS + 0x50]; \ - stx %i3, [%sp + STACK_BIAS + 0x58]; \ - stx %i4, [%sp + STACK_BIAS + 0x60]; \ - stx %i5, [%sp + STACK_BIAS + 0x68]; \ - stx %i6, [%sp + STACK_BIAS + 0x70]; \ - stx %i7, [%sp + STACK_BIAS + 0x78]; \ - saved; \ - sub %g1, 2, %g1; \ - ba,pt %xcc, etrap_save; \ - wrpr %g1, %cwp; \ - nop; nop; nop; nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; - -/* Normal 64bit spill */ -#define SPILL_1_GENERIC(ASI) \ - add %sp, STACK_BIAS + 0x00, %g1; \ - stxa %l0, [%g1 + %g0] ASI; \ - mov 0x08, %g3; \ - stxa %l1, [%g1 + %g3] ASI; \ - add %g1, 0x10, %g1; \ - stxa %l2, [%g1 + %g0] ASI; \ - stxa %l3, [%g1 + %g3] ASI; \ - add %g1, 0x10, %g1; \ - stxa %l4, [%g1 + %g0] ASI; \ - stxa %l5, [%g1 + %g3] ASI; \ - add %g1, 0x10, %g1; \ - stxa %l6, [%g1 + %g0] ASI; \ - stxa %l7, [%g1 + %g3] ASI; \ - add %g1, 0x10, %g1; \ - stxa %i0, [%g1 + %g0] ASI; \ - stxa %i1, [%g1 + %g3] ASI; \ - add %g1, 0x10, %g1; \ - stxa %i2, [%g1 + %g0] ASI; \ - stxa %i3, [%g1 + %g3] ASI; \ - add %g1, 0x10, %g1; \ - stxa %i4, [%g1 + %g0] ASI; \ - stxa %i5, [%g1 + %g3] ASI; \ - add %g1, 0x10, %g1; \ - stxa %i6, [%g1 + %g0] ASI; \ - stxa %i7, [%g1 + %g3] ASI; \ - saved; \ - retry; nop; nop; \ - b,a,pt %xcc, spill_fixup_dax; \ - b,a,pt %xcc, spill_fixup_mna; \ - b,a,pt %xcc, spill_fixup; - -#define SPILL_1_GENERIC_ETRAP \ -etrap_user_spill_64bit: \ - stxa %l0, [%sp + STACK_BIAS + 0x00] %asi; \ - stxa %l1, [%sp + STACK_BIAS + 0x08] %asi; \ - stxa %l2, [%sp + STACK_BIAS + 0x10] %asi; \ - stxa %l3, [%sp + STACK_BIAS + 0x18] %asi; \ - stxa %l4, [%sp + STACK_BIAS + 0x20] %asi; \ - stxa %l5, [%sp + STACK_BIAS + 0x28] %asi; \ - stxa %l6, [%sp + STACK_BIAS + 0x30] %asi; \ - stxa %l7, [%sp + STACK_BIAS + 0x38] %asi; \ - stxa %i0, [%sp + STACK_BIAS + 0x40] %asi; \ - stxa %i1, [%sp + STACK_BIAS + 0x48] %asi; \ - stxa %i2, [%sp + STACK_BIAS + 0x50] %asi; \ - stxa %i3, [%sp + STACK_BIAS + 0x58] %asi; \ - stxa %i4, [%sp + STACK_BIAS + 0x60] %asi; \ - stxa %i5, [%sp + STACK_BIAS + 0x68] %asi; \ - stxa %i6, [%sp + STACK_BIAS + 0x70] %asi; \ - stxa %i7, [%sp + STACK_BIAS + 0x78] %asi; \ - saved; \ - sub %g1, 2, %g1; \ - ba,pt %xcc, etrap_save; \ - wrpr %g1, %cwp; \ - nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; \ - ba,a,pt %xcc, etrap_spill_fixup_64bit; \ - ba,a,pt %xcc, etrap_spill_fixup_64bit; \ - ba,a,pt %xcc, etrap_spill_fixup_64bit; - -#define SPILL_1_GENERIC_ETRAP_FIXUP \ -etrap_spill_fixup_64bit: \ - ldub [%g6 + TI_WSAVED], %g1; \ - sll %g1, 3, %g3; \ - add %g6, %g3, %g3; \ - stx %sp, [%g3 + TI_RWIN_SPTRS]; \ - sll %g1, 7, %g3; \ - add %g6, %g3, %g3; \ - stx %l0, [%g3 + TI_REG_WINDOW + 0x00]; \ - stx %l1, [%g3 + TI_REG_WINDOW + 0x08]; \ - stx %l2, [%g3 + TI_REG_WINDOW + 0x10]; \ - stx %l3, [%g3 + TI_REG_WINDOW + 0x18]; \ - stx %l4, [%g3 + TI_REG_WINDOW + 0x20]; \ - stx %l5, [%g3 + TI_REG_WINDOW + 0x28]; \ - stx %l6, [%g3 + TI_REG_WINDOW + 0x30]; \ - stx %l7, [%g3 + TI_REG_WINDOW + 0x38]; \ - stx %i0, [%g3 + TI_REG_WINDOW + 0x40]; \ - stx %i1, [%g3 + TI_REG_WINDOW + 0x48]; \ - stx %i2, [%g3 + TI_REG_WINDOW + 0x50]; \ - stx %i3, [%g3 + TI_REG_WINDOW + 0x58]; \ - stx %i4, [%g3 + TI_REG_WINDOW + 0x60]; \ - stx %i5, [%g3 + TI_REG_WINDOW + 0x68]; \ - stx %i6, [%g3 + TI_REG_WINDOW + 0x70]; \ - stx %i7, [%g3 + TI_REG_WINDOW + 0x78]; \ - add %g1, 1, %g1; \ - stb %g1, [%g6 + TI_WSAVED]; \ - saved; \ - rdpr %cwp, %g1; \ - sub %g1, 2, %g1; \ - ba,pt %xcc, etrap_save; \ - wrpr %g1, %cwp; \ - nop; nop; nop - -/* Normal 32bit spill */ -#define SPILL_2_GENERIC(ASI) \ - srl %sp, 0, %sp; \ - stwa %l0, [%sp + %g0] ASI; \ - mov 0x04, %g3; \ - stwa %l1, [%sp + %g3] ASI; \ - add %sp, 0x08, %g1; \ - stwa %l2, [%g1 + %g0] ASI; \ - stwa %l3, [%g1 + %g3] ASI; \ - add %g1, 0x08, %g1; \ - stwa %l4, [%g1 + %g0] ASI; \ - stwa %l5, [%g1 + %g3] ASI; \ - add %g1, 0x08, %g1; \ - stwa %l6, [%g1 + %g0] ASI; \ - stwa %l7, [%g1 + %g3] ASI; \ - add %g1, 0x08, %g1; \ - stwa %i0, [%g1 + %g0] ASI; \ - stwa %i1, [%g1 + %g3] ASI; \ - add %g1, 0x08, %g1; \ - stwa %i2, [%g1 + %g0] ASI; \ - stwa %i3, [%g1 + %g3] ASI; \ - add %g1, 0x08, %g1; \ - stwa %i4, [%g1 + %g0] ASI; \ - stwa %i5, [%g1 + %g3] ASI; \ - add %g1, 0x08, %g1; \ - stwa %i6, [%g1 + %g0] ASI; \ - stwa %i7, [%g1 + %g3] ASI; \ - saved; \ - retry; nop; nop; \ - b,a,pt %xcc, spill_fixup_dax; \ - b,a,pt %xcc, spill_fixup_mna; \ - b,a,pt %xcc, spill_fixup; - -#define SPILL_2_GENERIC_ETRAP \ -etrap_user_spill_32bit: \ - srl %sp, 0, %sp; \ - stwa %l0, [%sp + 0x00] %asi; \ - stwa %l1, [%sp + 0x04] %asi; \ - stwa %l2, [%sp + 0x08] %asi; \ - stwa %l3, [%sp + 0x0c] %asi; \ - stwa %l4, [%sp + 0x10] %asi; \ - stwa %l5, [%sp + 0x14] %asi; \ - stwa %l6, [%sp + 0x18] %asi; \ - stwa %l7, [%sp + 0x1c] %asi; \ - stwa %i0, [%sp + 0x20] %asi; \ - stwa %i1, [%sp + 0x24] %asi; \ - stwa %i2, [%sp + 0x28] %asi; \ - stwa %i3, [%sp + 0x2c] %asi; \ - stwa %i4, [%sp + 0x30] %asi; \ - stwa %i5, [%sp + 0x34] %asi; \ - stwa %i6, [%sp + 0x38] %asi; \ - stwa %i7, [%sp + 0x3c] %asi; \ - saved; \ - sub %g1, 2, %g1; \ - ba,pt %xcc, etrap_save; \ - wrpr %g1, %cwp; \ - nop; nop; nop; nop; \ - nop; nop; nop; nop; \ - ba,a,pt %xcc, etrap_spill_fixup_32bit; \ - ba,a,pt %xcc, etrap_spill_fixup_32bit; \ - ba,a,pt %xcc, etrap_spill_fixup_32bit; - -#define SPILL_2_GENERIC_ETRAP_FIXUP \ -etrap_spill_fixup_32bit: \ - ldub [%g6 + TI_WSAVED], %g1; \ - sll %g1, 3, %g3; \ - add %g6, %g3, %g3; \ - stx %sp, [%g3 + TI_RWIN_SPTRS]; \ - sll %g1, 7, %g3; \ - add %g6, %g3, %g3; \ - stw %l0, [%g3 + TI_REG_WINDOW + 0x00]; \ - stw %l1, [%g3 + TI_REG_WINDOW + 0x04]; \ - stw %l2, [%g3 + TI_REG_WINDOW + 0x08]; \ - stw %l3, [%g3 + TI_REG_WINDOW + 0x0c]; \ - stw %l4, [%g3 + TI_REG_WINDOW + 0x10]; \ - stw %l5, [%g3 + TI_REG_WINDOW + 0x14]; \ - stw %l6, [%g3 + TI_REG_WINDOW + 0x18]; \ - stw %l7, [%g3 + TI_REG_WINDOW + 0x1c]; \ - stw %i0, [%g3 + TI_REG_WINDOW + 0x20]; \ - stw %i1, [%g3 + TI_REG_WINDOW + 0x24]; \ - stw %i2, [%g3 + TI_REG_WINDOW + 0x28]; \ - stw %i3, [%g3 + TI_REG_WINDOW + 0x2c]; \ - stw %i4, [%g3 + TI_REG_WINDOW + 0x30]; \ - stw %i5, [%g3 + TI_REG_WINDOW + 0x34]; \ - stw %i6, [%g3 + TI_REG_WINDOW + 0x38]; \ - stw %i7, [%g3 + TI_REG_WINDOW + 0x3c]; \ - add %g1, 1, %g1; \ - stb %g1, [%g6 + TI_WSAVED]; \ - saved; \ - rdpr %cwp, %g1; \ - sub %g1, 2, %g1; \ - ba,pt %xcc, etrap_save; \ - wrpr %g1, %cwp; \ - nop; nop; nop - -#define SPILL_1_NORMAL SPILL_1_GENERIC(ASI_AIUP) -#define SPILL_2_NORMAL SPILL_2_GENERIC(ASI_AIUP) -#define SPILL_3_NORMAL SPILL_0_NORMAL -#define SPILL_4_NORMAL SPILL_0_NORMAL -#define SPILL_5_NORMAL SPILL_0_NORMAL -#define SPILL_6_NORMAL SPILL_0_NORMAL -#define SPILL_7_NORMAL SPILL_0_NORMAL - -#define SPILL_0_OTHER SPILL_0_NORMAL -#define SPILL_1_OTHER SPILL_1_GENERIC(ASI_AIUS) -#define SPILL_2_OTHER SPILL_2_GENERIC(ASI_AIUS) -#define SPILL_3_OTHER SPILL_3_NORMAL -#define SPILL_4_OTHER SPILL_4_NORMAL -#define SPILL_5_OTHER SPILL_5_NORMAL -#define SPILL_6_OTHER SPILL_6_NORMAL -#define SPILL_7_OTHER SPILL_7_NORMAL - -/* Normal kernel fill */ -#define FILL_0_NORMAL \ - ldx [%sp + STACK_BIAS + 0x00], %l0; \ - ldx [%sp + STACK_BIAS + 0x08], %l1; \ - ldx [%sp + STACK_BIAS + 0x10], %l2; \ - ldx [%sp + STACK_BIAS + 0x18], %l3; \ - ldx [%sp + STACK_BIAS + 0x20], %l4; \ - ldx [%sp + STACK_BIAS + 0x28], %l5; \ - ldx [%sp + STACK_BIAS + 0x30], %l6; \ - ldx [%sp + STACK_BIAS + 0x38], %l7; \ - ldx [%sp + STACK_BIAS + 0x40], %i0; \ - ldx [%sp + STACK_BIAS + 0x48], %i1; \ - ldx [%sp + STACK_BIAS + 0x50], %i2; \ - ldx [%sp + STACK_BIAS + 0x58], %i3; \ - ldx [%sp + STACK_BIAS + 0x60], %i4; \ - ldx [%sp + STACK_BIAS + 0x68], %i5; \ - ldx [%sp + STACK_BIAS + 0x70], %i6; \ - ldx [%sp + STACK_BIAS + 0x78], %i7; \ - restored; retry; nop; nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; nop; nop; nop; nop; - -#define FILL_0_NORMAL_RTRAP \ -kern_rtt_fill: \ - rdpr %cwp, %g1; \ - sub %g1, 1, %g1; \ - wrpr %g1, %cwp; \ - ldx [%sp + STACK_BIAS + 0x00], %l0; \ - ldx [%sp + STACK_BIAS + 0x08], %l1; \ - ldx [%sp + STACK_BIAS + 0x10], %l2; \ - ldx [%sp + STACK_BIAS + 0x18], %l3; \ - ldx [%sp + STACK_BIAS + 0x20], %l4; \ - ldx [%sp + STACK_BIAS + 0x28], %l5; \ - ldx [%sp + STACK_BIAS + 0x30], %l6; \ - ldx [%sp + STACK_BIAS + 0x38], %l7; \ - ldx [%sp + STACK_BIAS + 0x40], %i0; \ - ldx [%sp + STACK_BIAS + 0x48], %i1; \ - ldx [%sp + STACK_BIAS + 0x50], %i2; \ - ldx [%sp + STACK_BIAS + 0x58], %i3; \ - ldx [%sp + STACK_BIAS + 0x60], %i4; \ - ldx [%sp + STACK_BIAS + 0x68], %i5; \ - ldx [%sp + STACK_BIAS + 0x70], %i6; \ - ldx [%sp + STACK_BIAS + 0x78], %i7; \ - restored; \ - add %g1, 1, %g1; \ - ba,pt %xcc, kern_rtt_restore; \ - wrpr %g1, %cwp; \ - nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; - - -/* Normal 64bit fill */ -#define FILL_1_GENERIC(ASI) \ - add %sp, STACK_BIAS + 0x00, %g1; \ - ldxa [%g1 + %g0] ASI, %l0; \ - mov 0x08, %g2; \ - mov 0x10, %g3; \ - ldxa [%g1 + %g2] ASI, %l1; \ - mov 0x18, %g5; \ - ldxa [%g1 + %g3] ASI, %l2; \ - ldxa [%g1 + %g5] ASI, %l3; \ - add %g1, 0x20, %g1; \ - ldxa [%g1 + %g0] ASI, %l4; \ - ldxa [%g1 + %g2] ASI, %l5; \ - ldxa [%g1 + %g3] ASI, %l6; \ - ldxa [%g1 + %g5] ASI, %l7; \ - add %g1, 0x20, %g1; \ - ldxa [%g1 + %g0] ASI, %i0; \ - ldxa [%g1 + %g2] ASI, %i1; \ - ldxa [%g1 + %g3] ASI, %i2; \ - ldxa [%g1 + %g5] ASI, %i3; \ - add %g1, 0x20, %g1; \ - ldxa [%g1 + %g0] ASI, %i4; \ - ldxa [%g1 + %g2] ASI, %i5; \ - ldxa [%g1 + %g3] ASI, %i6; \ - ldxa [%g1 + %g5] ASI, %i7; \ - restored; \ - retry; nop; nop; nop; nop; \ - b,a,pt %xcc, fill_fixup_dax; \ - b,a,pt %xcc, fill_fixup_mna; \ - b,a,pt %xcc, fill_fixup; - -#define FILL_1_GENERIC_RTRAP \ -user_rtt_fill_64bit: \ - ldxa [%sp + STACK_BIAS + 0x00] %asi, %l0; \ - ldxa [%sp + STACK_BIAS + 0x08] %asi, %l1; \ - ldxa [%sp + STACK_BIAS + 0x10] %asi, %l2; \ - ldxa [%sp + STACK_BIAS + 0x18] %asi, %l3; \ - ldxa [%sp + STACK_BIAS + 0x20] %asi, %l4; \ - ldxa [%sp + STACK_BIAS + 0x28] %asi, %l5; \ - ldxa [%sp + STACK_BIAS + 0x30] %asi, %l6; \ - ldxa [%sp + STACK_BIAS + 0x38] %asi, %l7; \ - ldxa [%sp + STACK_BIAS + 0x40] %asi, %i0; \ - ldxa [%sp + STACK_BIAS + 0x48] %asi, %i1; \ - ldxa [%sp + STACK_BIAS + 0x50] %asi, %i2; \ - ldxa [%sp + STACK_BIAS + 0x58] %asi, %i3; \ - ldxa [%sp + STACK_BIAS + 0x60] %asi, %i4; \ - ldxa [%sp + STACK_BIAS + 0x68] %asi, %i5; \ - ldxa [%sp + STACK_BIAS + 0x70] %asi, %i6; \ - ldxa [%sp + STACK_BIAS + 0x78] %asi, %i7; \ - ba,pt %xcc, user_rtt_pre_restore; \ - restored; \ - nop; nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; nop; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ - ba,a,pt %xcc, user_rtt_fill_fixup; - - -/* Normal 32bit fill */ -#define FILL_2_GENERIC(ASI) \ - srl %sp, 0, %sp; \ - lduwa [%sp + %g0] ASI, %l0; \ - mov 0x04, %g2; \ - mov 0x08, %g3; \ - lduwa [%sp + %g2] ASI, %l1; \ - mov 0x0c, %g5; \ - lduwa [%sp + %g3] ASI, %l2; \ - lduwa [%sp + %g5] ASI, %l3; \ - add %sp, 0x10, %g1; \ - lduwa [%g1 + %g0] ASI, %l4; \ - lduwa [%g1 + %g2] ASI, %l5; \ - lduwa [%g1 + %g3] ASI, %l6; \ - lduwa [%g1 + %g5] ASI, %l7; \ - add %g1, 0x10, %g1; \ - lduwa [%g1 + %g0] ASI, %i0; \ - lduwa [%g1 + %g2] ASI, %i1; \ - lduwa [%g1 + %g3] ASI, %i2; \ - lduwa [%g1 + %g5] ASI, %i3; \ - add %g1, 0x10, %g1; \ - lduwa [%g1 + %g0] ASI, %i4; \ - lduwa [%g1 + %g2] ASI, %i5; \ - lduwa [%g1 + %g3] ASI, %i6; \ - lduwa [%g1 + %g5] ASI, %i7; \ - restored; \ - retry; nop; nop; nop; nop; \ - b,a,pt %xcc, fill_fixup_dax; \ - b,a,pt %xcc, fill_fixup_mna; \ - b,a,pt %xcc, fill_fixup; - -#define FILL_2_GENERIC_RTRAP \ -user_rtt_fill_32bit: \ - srl %sp, 0, %sp; \ - lduwa [%sp + 0x00] %asi, %l0; \ - lduwa [%sp + 0x04] %asi, %l1; \ - lduwa [%sp + 0x08] %asi, %l2; \ - lduwa [%sp + 0x0c] %asi, %l3; \ - lduwa [%sp + 0x10] %asi, %l4; \ - lduwa [%sp + 0x14] %asi, %l5; \ - lduwa [%sp + 0x18] %asi, %l6; \ - lduwa [%sp + 0x1c] %asi, %l7; \ - lduwa [%sp + 0x20] %asi, %i0; \ - lduwa [%sp + 0x24] %asi, %i1; \ - lduwa [%sp + 0x28] %asi, %i2; \ - lduwa [%sp + 0x2c] %asi, %i3; \ - lduwa [%sp + 0x30] %asi, %i4; \ - lduwa [%sp + 0x34] %asi, %i5; \ - lduwa [%sp + 0x38] %asi, %i6; \ - lduwa [%sp + 0x3c] %asi, %i7; \ - ba,pt %xcc, user_rtt_pre_restore; \ - restored; \ - nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; nop; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ - ba,a,pt %xcc, user_rtt_fill_fixup; - - -#define FILL_1_NORMAL FILL_1_GENERIC(ASI_AIUP) -#define FILL_2_NORMAL FILL_2_GENERIC(ASI_AIUP) -#define FILL_3_NORMAL FILL_0_NORMAL -#define FILL_4_NORMAL FILL_0_NORMAL -#define FILL_5_NORMAL FILL_0_NORMAL -#define FILL_6_NORMAL FILL_0_NORMAL -#define FILL_7_NORMAL FILL_0_NORMAL - -#define FILL_0_OTHER FILL_0_NORMAL -#define FILL_1_OTHER FILL_1_GENERIC(ASI_AIUS) -#define FILL_2_OTHER FILL_2_GENERIC(ASI_AIUS) -#define FILL_3_OTHER FILL_3_NORMAL -#define FILL_4_OTHER FILL_4_NORMAL -#define FILL_5_OTHER FILL_5_NORMAL -#define FILL_6_OTHER FILL_6_NORMAL -#define FILL_7_OTHER FILL_7_NORMAL - -#endif /* !(_SPARC64_TTABLE_H) */ +#include diff --git a/include/asm-sparc64/upa.h b/include/asm-sparc64/upa.h index 5b1633223f92..aab72930815a 100644 --- a/include/asm-sparc64/upa.h +++ b/include/asm-sparc64/upa.h @@ -1,109 +1 @@ -#ifndef _SPARC64_UPA_H -#define _SPARC64_UPA_H - -#include - -/* UPA level registers and defines. */ - -/* UPA Config Register */ -#define UPA_CONFIG_RESV 0xffffffffc0000000 /* Reserved. */ -#define UPA_CONFIG_PCON 0x000000003fc00000 /* Depth of various sys queues. */ -#define UPA_CONFIG_MID 0x00000000003e0000 /* Module ID. */ -#define UPA_CONFIG_PCAP 0x000000000001ffff /* Port Capabilities. */ - -/* UPA Port ID Register */ -#define UPA_PORTID_FNP 0xff00000000000000 /* Hardcoded to 0xfc on ultra. */ -#define UPA_PORTID_RESV 0x00fffff800000000 /* Reserved. */ -#define UPA_PORTID_ECCVALID 0x0000000400000000 /* Zero if mod can generate ECC */ -#define UPA_PORTID_ONEREAD 0x0000000200000000 /* Set if mod generates P_RASB */ -#define UPA_PORTID_PINTRDQ 0x0000000180000000 /* # outstanding P_INT_REQ's */ -#define UPA_PORTID_PREQDQ 0x000000007e000000 /* slave-wr's to mod supported */ -#define UPA_PORTID_PREQRD 0x0000000001e00000 /* # incoming P_REQ's supported */ -#define UPA_PORTID_UPACAP 0x00000000001f0000 /* UPA capabilities of mod */ -#define UPA_PORTID_ID 0x000000000000ffff /* Module Identification bits */ - -/* UPA I/O space accessors */ -#if defined(__KERNEL__) && !defined(__ASSEMBLY__) -static inline unsigned char _upa_readb(unsigned long addr) -{ - unsigned char ret; - - __asm__ __volatile__("lduba\t[%1] %2, %0\t/* upa_readb */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline unsigned short _upa_readw(unsigned long addr) -{ - unsigned short ret; - - __asm__ __volatile__("lduha\t[%1] %2, %0\t/* upa_readw */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline unsigned int _upa_readl(unsigned long addr) -{ - unsigned int ret; - - __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* upa_readl */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline unsigned long _upa_readq(unsigned long addr) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* upa_readq */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline void _upa_writeb(unsigned char b, unsigned long addr) -{ - __asm__ __volatile__("stba\t%0, [%1] %2\t/* upa_writeb */" - : /* no outputs */ - : "r" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static inline void _upa_writew(unsigned short w, unsigned long addr) -{ - __asm__ __volatile__("stha\t%0, [%1] %2\t/* upa_writew */" - : /* no outputs */ - : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static inline void _upa_writel(unsigned int l, unsigned long addr) -{ - __asm__ __volatile__("stwa\t%0, [%1] %2\t/* upa_writel */" - : /* no outputs */ - : "r" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static inline void _upa_writeq(unsigned long q, unsigned long addr) -{ - __asm__ __volatile__("stxa\t%0, [%1] %2\t/* upa_writeq */" - : /* no outputs */ - : "r" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -#define upa_readb(__addr) (_upa_readb((unsigned long)(__addr))) -#define upa_readw(__addr) (_upa_readw((unsigned long)(__addr))) -#define upa_readl(__addr) (_upa_readl((unsigned long)(__addr))) -#define upa_readq(__addr) (_upa_readq((unsigned long)(__addr))) -#define upa_writeb(__b, __addr) (_upa_writeb((__b), (unsigned long)(__addr))) -#define upa_writew(__w, __addr) (_upa_writew((__w), (unsigned long)(__addr))) -#define upa_writel(__l, __addr) (_upa_writel((__l), (unsigned long)(__addr))) -#define upa_writeq(__q, __addr) (_upa_writeq((__q), (unsigned long)(__addr))) -#endif /* __KERNEL__ && !__ASSEMBLY__ */ - -#endif /* !(_SPARC64_UPA_H) */ +#include diff --git a/include/asm-sparc64/vio.h b/include/asm-sparc64/vio.h index d4de32f0f8af..299b26ab81a7 100644 --- a/include/asm-sparc64/vio.h +++ b/include/asm-sparc64/vio.h @@ -1,406 +1 @@ -#ifndef _SPARC64_VIO_H -#define _SPARC64_VIO_H - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -struct vio_msg_tag { - u8 type; -#define VIO_TYPE_CTRL 0x01 -#define VIO_TYPE_DATA 0x02 -#define VIO_TYPE_ERR 0x04 - - u8 stype; -#define VIO_SUBTYPE_INFO 0x01 -#define VIO_SUBTYPE_ACK 0x02 -#define VIO_SUBTYPE_NACK 0x04 - - u16 stype_env; -#define VIO_VER_INFO 0x0001 -#define VIO_ATTR_INFO 0x0002 -#define VIO_DRING_REG 0x0003 -#define VIO_DRING_UNREG 0x0004 -#define VIO_RDX 0x0005 -#define VIO_PKT_DATA 0x0040 -#define VIO_DESC_DATA 0x0041 -#define VIO_DRING_DATA 0x0042 -#define VNET_MCAST_INFO 0x0101 - - u32 sid; -}; - -struct vio_rdx { - struct vio_msg_tag tag; - u64 resv[6]; -}; - -struct vio_ver_info { - struct vio_msg_tag tag; - u16 major; - u16 minor; - u8 dev_class; -#define VDEV_NETWORK 0x01 -#define VDEV_NETWORK_SWITCH 0x02 -#define VDEV_DISK 0x03 -#define VDEV_DISK_SERVER 0x04 - - u8 resv1[3]; - u64 resv2[5]; -}; - -struct vio_dring_register { - struct vio_msg_tag tag; - u64 dring_ident; - u32 num_descr; - u32 descr_size; - u16 options; -#define VIO_TX_DRING 0x0001 -#define VIO_RX_DRING 0x0002 - u16 resv; - u32 num_cookies; - struct ldc_trans_cookie cookies[0]; -}; - -struct vio_dring_unregister { - struct vio_msg_tag tag; - u64 dring_ident; - u64 resv[5]; -}; - -/* Data transfer modes */ -#define VIO_PKT_MODE 0x01 /* Packet based transfer */ -#define VIO_DESC_MODE 0x02 /* In-band descriptors */ -#define VIO_DRING_MODE 0x03 /* Descriptor rings */ - -struct vio_dring_data { - struct vio_msg_tag tag; - u64 seq; - u64 dring_ident; - u32 start_idx; - u32 end_idx; - u8 state; -#define VIO_DRING_ACTIVE 0x01 -#define VIO_DRING_STOPPED 0x02 - - u8 __pad1; - u16 __pad2; - u32 __pad3; - u64 __par4[2]; -}; - -struct vio_dring_hdr { - u8 state; -#define VIO_DESC_FREE 0x01 -#define VIO_DESC_READY 0x02 -#define VIO_DESC_ACCEPTED 0x03 -#define VIO_DESC_DONE 0x04 - u8 ack; -#define VIO_ACK_ENABLE 0x01 -#define VIO_ACK_DISABLE 0x00 - - u16 __pad1; - u32 __pad2; -}; - -/* VIO disk specific structures and defines */ -struct vio_disk_attr_info { - struct vio_msg_tag tag; - u8 xfer_mode; - u8 vdisk_type; -#define VD_DISK_TYPE_SLICE 0x01 /* Slice in block device */ -#define VD_DISK_TYPE_DISK 0x02 /* Entire block device */ - u16 resv1; - u32 vdisk_block_size; - u64 operations; - u64 vdisk_size; - u64 max_xfer_size; - u64 resv2[2]; -}; - -struct vio_disk_desc { - struct vio_dring_hdr hdr; - u64 req_id; - u8 operation; -#define VD_OP_BREAD 0x01 /* Block read */ -#define VD_OP_BWRITE 0x02 /* Block write */ -#define VD_OP_FLUSH 0x03 /* Flush disk contents */ -#define VD_OP_GET_WCE 0x04 /* Get write-cache status */ -#define VD_OP_SET_WCE 0x05 /* Enable/disable write-cache */ -#define VD_OP_GET_VTOC 0x06 /* Get VTOC */ -#define VD_OP_SET_VTOC 0x07 /* Set VTOC */ -#define VD_OP_GET_DISKGEOM 0x08 /* Get disk geometry */ -#define VD_OP_SET_DISKGEOM 0x09 /* Set disk geometry */ -#define VD_OP_SCSICMD 0x0a /* SCSI control command */ -#define VD_OP_GET_DEVID 0x0b /* Get device ID */ -#define VD_OP_GET_EFI 0x0c /* Get EFI */ -#define VD_OP_SET_EFI 0x0d /* Set EFI */ - u8 slice; - u16 resv1; - u32 status; - u64 offset; - u64 size; - u32 ncookies; - u32 resv2; - struct ldc_trans_cookie cookies[0]; -}; - -#define VIO_DISK_VNAME_LEN 8 -#define VIO_DISK_ALABEL_LEN 128 -#define VIO_DISK_NUM_PART 8 - -struct vio_disk_vtoc { - u8 volume_name[VIO_DISK_VNAME_LEN]; - u16 sector_size; - u16 num_partitions; - u8 ascii_label[VIO_DISK_ALABEL_LEN]; - struct { - u16 id; - u16 perm_flags; - u32 resv; - u64 start_block; - u64 num_blocks; - } partitions[VIO_DISK_NUM_PART]; -}; - -struct vio_disk_geom { - u16 num_cyl; /* Num data cylinders */ - u16 alt_cyl; /* Num alternate cylinders */ - u16 beg_cyl; /* Cyl off of fixed head area */ - u16 num_hd; /* Num heads */ - u16 num_sec; /* Num sectors */ - u16 ifact; /* Interleave factor */ - u16 apc; /* Alts per cylinder (SCSI) */ - u16 rpm; /* Revolutions per minute */ - u16 phy_cyl; /* Num physical cylinders */ - u16 wr_skip; /* Num sects to skip, writes */ - u16 rd_skip; /* Num sects to skip, writes */ -}; - -struct vio_disk_devid { - u16 resv; - u16 type; - u32 len; - char id[0]; -}; - -struct vio_disk_efi { - u64 lba; - u64 len; - char data[0]; -}; - -/* VIO net specific structures and defines */ -struct vio_net_attr_info { - struct vio_msg_tag tag; - u8 xfer_mode; - u8 addr_type; -#define VNET_ADDR_ETHERMAC 0x01 - u16 ack_freq; - u32 resv1; - u64 addr; - u64 mtu; - u64 resv2[3]; -}; - -#define VNET_NUM_MCAST 7 - -struct vio_net_mcast_info { - struct vio_msg_tag tag; - u8 set; - u8 count; - u8 mcast_addr[VNET_NUM_MCAST * 6]; - u32 resv; -}; - -struct vio_net_desc { - struct vio_dring_hdr hdr; - u32 size; - u32 ncookies; - struct ldc_trans_cookie cookies[0]; -}; - -#define VIO_MAX_RING_COOKIES 24 - -struct vio_dring_state { - u64 ident; - void *base; - u64 snd_nxt; - u64 rcv_nxt; - u32 entry_size; - u32 num_entries; - u32 prod; - u32 cons; - u32 pending; - int ncookies; - struct ldc_trans_cookie cookies[VIO_MAX_RING_COOKIES]; -}; - -static inline void *vio_dring_cur(struct vio_dring_state *dr) -{ - return dr->base + (dr->entry_size * dr->prod); -} - -static inline void *vio_dring_entry(struct vio_dring_state *dr, - unsigned int index) -{ - return dr->base + (dr->entry_size * index); -} - -static inline u32 vio_dring_avail(struct vio_dring_state *dr, - unsigned int ring_size) -{ - BUILD_BUG_ON(!is_power_of_2(ring_size)); - - return (dr->pending - - ((dr->prod - dr->cons) & (ring_size - 1))); -} - -#define VIO_MAX_TYPE_LEN 32 -#define VIO_MAX_COMPAT_LEN 64 - -struct vio_dev { - u64 mp; - struct device_node *dp; - - char type[VIO_MAX_TYPE_LEN]; - char compat[VIO_MAX_COMPAT_LEN]; - int compat_len; - - u64 dev_no; - - unsigned long channel_id; - - unsigned int tx_irq; - unsigned int rx_irq; - - struct device dev; -}; - -struct vio_driver { - struct list_head node; - const struct vio_device_id *id_table; - int (*probe)(struct vio_dev *dev, const struct vio_device_id *id); - int (*remove)(struct vio_dev *dev); - void (*shutdown)(struct vio_dev *dev); - unsigned long driver_data; - struct device_driver driver; -}; - -struct vio_version { - u16 major; - u16 minor; -}; - -struct vio_driver_state; -struct vio_driver_ops { - int (*send_attr)(struct vio_driver_state *vio); - int (*handle_attr)(struct vio_driver_state *vio, void *pkt); - void (*handshake_complete)(struct vio_driver_state *vio); -}; - -struct vio_completion { - struct completion com; - int err; - int waiting_for; -}; - -struct vio_driver_state { - /* Protects VIO handshake and, optionally, driver private state. */ - spinlock_t lock; - - struct ldc_channel *lp; - - u32 _peer_sid; - u32 _local_sid; - struct vio_dring_state drings[2]; -#define VIO_DRIVER_TX_RING 0 -#define VIO_DRIVER_RX_RING 1 - - u8 hs_state; -#define VIO_HS_INVALID 0x00 -#define VIO_HS_GOTVERS 0x01 -#define VIO_HS_GOT_ATTR 0x04 -#define VIO_HS_SENT_DREG 0x08 -#define VIO_HS_SENT_RDX 0x10 -#define VIO_HS_GOT_RDX_ACK 0x20 -#define VIO_HS_GOT_RDX 0x40 -#define VIO_HS_SENT_RDX_ACK 0x80 -#define VIO_HS_COMPLETE (VIO_HS_GOT_RDX_ACK | VIO_HS_SENT_RDX_ACK) - - u8 dev_class; - - u8 dr_state; -#define VIO_DR_STATE_TXREG 0x01 -#define VIO_DR_STATE_RXREG 0x02 -#define VIO_DR_STATE_TXREQ 0x10 -#define VIO_DR_STATE_RXREQ 0x20 - - u8 debug; -#define VIO_DEBUG_HS 0x01 -#define VIO_DEBUG_DATA 0x02 - - void *desc_buf; - unsigned int desc_buf_len; - - struct vio_completion *cmp; - - struct vio_dev *vdev; - - struct timer_list timer; - - struct vio_version ver; - - struct vio_version *ver_table; - int ver_table_entries; - - char *name; - - struct vio_driver_ops *ops; -}; - -#define viodbg(TYPE, f, a...) \ -do { if (vio->debug & VIO_DEBUG_##TYPE) \ - printk(KERN_INFO "vio: ID[%lu] " f, \ - vio->vdev->channel_id, ## a); \ -} while (0) - -extern int vio_register_driver(struct vio_driver *drv); -extern void vio_unregister_driver(struct vio_driver *drv); - -static inline struct vio_driver *to_vio_driver(struct device_driver *drv) -{ - return container_of(drv, struct vio_driver, driver); -} - -static inline struct vio_dev *to_vio_dev(struct device *dev) -{ - return container_of(dev, struct vio_dev, dev); -} - -extern int vio_ldc_send(struct vio_driver_state *vio, void *data, int len); -extern void vio_link_state_change(struct vio_driver_state *vio, int event); -extern void vio_conn_reset(struct vio_driver_state *vio); -extern int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt); -extern int vio_validate_sid(struct vio_driver_state *vio, - struct vio_msg_tag *tp); -extern u32 vio_send_sid(struct vio_driver_state *vio); -extern int vio_ldc_alloc(struct vio_driver_state *vio, - struct ldc_channel_config *base_cfg, void *event_arg); -extern void vio_ldc_free(struct vio_driver_state *vio); -extern int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev, - u8 dev_class, struct vio_version *ver_table, - int ver_table_size, struct vio_driver_ops *ops, - char *name); - -extern void vio_port_up(struct vio_driver_state *vio); - -#endif /* _SPARC64_VIO_H */ +#include diff --git a/include/asm-sparc64/visasm.h b/include/asm-sparc64/visasm.h index 34f2ec64933b..837a12278f4a 100644 --- a/include/asm-sparc64/visasm.h +++ b/include/asm-sparc64/visasm.h @@ -1,62 +1 @@ -#ifndef _SPARC64_VISASM_H -#define _SPARC64_VISASM_H - -/* visasm.h: FPU saving macros for VIS routines - * - * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) - */ - -#include -#include - -/* Clobbers %o5, %g1, %g2, %g3, %g7, %icc, %xcc */ - -#define VISEntry \ - rd %fprs, %o5; \ - andcc %o5, (FPRS_FEF|FPRS_DU), %g0; \ - be,pt %icc, 297f; \ - sethi %hi(297f), %g7; \ - sethi %hi(VISenter), %g1; \ - jmpl %g1 + %lo(VISenter), %g0; \ - or %g7, %lo(297f), %g7; \ -297: wr %g0, FPRS_FEF, %fprs; \ - -#define VISExit \ - wr %g0, 0, %fprs; - -/* Clobbers %o5, %g1, %g2, %g3, %g7, %icc, %xcc. - * Must preserve %o5 between VISEntryHalf and VISExitHalf */ - -#define VISEntryHalf \ - rd %fprs, %o5; \ - andcc %o5, FPRS_FEF, %g0; \ - be,pt %icc, 297f; \ - sethi %hi(298f), %g7; \ - sethi %hi(VISenterhalf), %g1; \ - jmpl %g1 + %lo(VISenterhalf), %g0; \ - or %g7, %lo(298f), %g7; \ - clr %o5; \ -297: wr %o5, FPRS_FEF, %fprs; \ -298: - -#define VISExitHalf \ - wr %o5, 0, %fprs; - -#ifndef __ASSEMBLY__ -static inline void save_and_clear_fpu(void) { - __asm__ __volatile__ ( -" rd %%fprs, %%o5\n" -" andcc %%o5, %0, %%g0\n" -" be,pt %%icc, 299f\n" -" sethi %%hi(298f), %%g7\n" -" sethi %%hi(VISenter), %%g1\n" -" jmpl %%g1 + %%lo(VISenter), %%g0\n" -" or %%g7, %%lo(298f), %%g7\n" -" 298: wr %%g0, 0, %%fprs\n" -" 299:\n" -" " : : "i" (FPRS_FEF|FPRS_DU) : - "o5", "g1", "g2", "g3", "g7", "cc"); -} -#endif - -#endif /* _SPARC64_ASI_H */ +#include -- cgit v1.2.3 From 075ae525327ed789f5b755a8042ee6f3a0e2ab7b Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 19 Jun 2008 20:52:54 +0200 Subject: sparc: when header files are equal use asm-sparc version Used the following script to find equal header files: SPARC64=`ls asm-sparc64` for FILE in ${SPARC64}; do cmp -s asm-sparc/$FILE asm-sparc64/$FILE; if [ $? = 0 ]; then printf "#include \n" $FILE > asm-sparc64/$FILE fi done A few of the equal files are a simple include from asm-generic, but by including the file from asm-sparc we know they are equal for sparc and sparc64. Signed-off-by: Sam Ravnborg --- include/asm-sparc64/irq_regs.h | 2 +- include/asm-sparc64/linkage.h | 7 +------ include/asm-sparc64/mutex.h | 10 +--------- include/asm-sparc64/rtc.h | 27 +-------------------------- include/asm-sparc64/semaphore.h | 2 +- include/asm-sparc64/vga.h | 34 +--------------------------------- 6 files changed, 6 insertions(+), 76 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/irq_regs.h b/include/asm-sparc64/irq_regs.h index 3dd9c0b70270..1e2b8a1e745a 100644 --- a/include/asm-sparc64/irq_regs.h +++ b/include/asm-sparc64/irq_regs.h @@ -1 +1 @@ -#include +#include diff --git a/include/asm-sparc64/linkage.h b/include/asm-sparc64/linkage.h index 291c2d01c44f..3ea4fd13f193 100644 --- a/include/asm-sparc64/linkage.h +++ b/include/asm-sparc64/linkage.h @@ -1,6 +1 @@ -#ifndef __ASM_LINKAGE_H -#define __ASM_LINKAGE_H - -/* Nothing to see here... */ - -#endif +#include diff --git a/include/asm-sparc64/mutex.h b/include/asm-sparc64/mutex.h index 458c1f7fbc18..c0c0f8f260d6 100644 --- a/include/asm-sparc64/mutex.h +++ b/include/asm-sparc64/mutex.h @@ -1,9 +1 @@ -/* - * Pull in the generic implementation for the mutex fastpath. - * - * TODO: implement optimized primitives instead, or leave the generic - * implementation in place, or pick the atomic_xchg() based generic - * implementation. (see asm-generic/mutex-xchg.h for details) - */ - -#include +#include diff --git a/include/asm-sparc64/rtc.h b/include/asm-sparc64/rtc.h index f9ecb1fe2ecd..e49a9685aead 100644 --- a/include/asm-sparc64/rtc.h +++ b/include/asm-sparc64/rtc.h @@ -1,26 +1 @@ -/* - * rtc.h: Definitions for access to the Mostek real time clock - * - * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) - */ - -#ifndef _RTC_H -#define _RTC_H - -#include - -struct rtc_time -{ - int sec; /* Seconds (0-59) */ - int min; /* Minutes (0-59) */ - int hour; /* Hour (0-23) */ - int dow; /* Day of the week (1-7) */ - int dom; /* Day of the month (1-31) */ - int month; /* Month of year (1-12) */ - int year; /* Year (0-99) */ -}; - -#define RTCGET _IOR('p', 20, struct rtc_time) -#define RTCSET _IOW('p', 21, struct rtc_time) - -#endif +#include diff --git a/include/asm-sparc64/semaphore.h b/include/asm-sparc64/semaphore.h index d9b2034ed1d2..39362afde5fe 100644 --- a/include/asm-sparc64/semaphore.h +++ b/include/asm-sparc64/semaphore.h @@ -1 +1 @@ -#include +#include diff --git a/include/asm-sparc64/vga.h b/include/asm-sparc64/vga.h index c69d5b2ba19a..fbf4d58a56f0 100644 --- a/include/asm-sparc64/vga.h +++ b/include/asm-sparc64/vga.h @@ -1,33 +1 @@ -/* - * Access to VGA videoram - * - * (c) 1998 Martin Mares - */ - -#ifndef _LINUX_ASM_VGA_H_ -#define _LINUX_ASM_VGA_H_ - -#include - -#define VT_BUF_HAVE_RW - -#undef scr_writew -#undef scr_readw - -static inline void scr_writew(u16 val, u16 *addr) -{ - BUG_ON((long) addr >= 0); - - *addr = val; -} - -static inline u16 scr_readw(const u16 *addr) -{ - BUG_ON((long) addr >= 0); - - return *addr; -} - -#define VGA_MAP_MEM(x,s) (x) - -#endif +#include -- cgit v1.2.3 From 5e3609f60c09f0f15f71f80c6d7933b2c7be71a6 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 19 Jun 2008 22:39:00 +0200 Subject: sparc: merge header files with trivial differences A manual inspection revealed that the following headerfiles contained only trivial differences: hw_irq.h idprom.h kmap_types.h kvm.h spinlock_types.h sunbpp.h unaligned.h The only noteworthy change are that sparc64 had a volatile qualifer that sparc missed in spinlock_types.h. In addition a few comments were updated. Signed-off-by: Sam Ravnborg --- include/asm-sparc/idprom.h | 2 +- include/asm-sparc/kmap_types.h | 4 ++ include/asm-sparc/spinlock_types.h | 2 +- include/asm-sparc64/hw_irq.h | 5 +-- include/asm-sparc64/idprom.h | 26 +----------- include/asm-sparc64/kmap_types.h | 26 +----------- include/asm-sparc64/kvm.h | 7 +--- include/asm-sparc64/spinlock_types.h | 21 +--------- include/asm-sparc64/sunbpp.h | 81 +----------------------------------- include/asm-sparc64/unaligned.h | 11 +---- 10 files changed, 13 insertions(+), 172 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/idprom.h b/include/asm-sparc/idprom.h index 41adb417a4e5..6976aa2439c6 100644 --- a/include/asm-sparc/idprom.h +++ b/include/asm-sparc/idprom.h @@ -1,7 +1,7 @@ /* * idprom.h: Macros and defines for idprom routines * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC_IDPROM_H diff --git a/include/asm-sparc/kmap_types.h b/include/asm-sparc/kmap_types.h index e215f7104974..602f5e034f7a 100644 --- a/include/asm-sparc/kmap_types.h +++ b/include/asm-sparc/kmap_types.h @@ -1,6 +1,10 @@ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H +/* Dummy header just to define km_type. None of this + * is actually used on sparc. -DaveM + */ + enum km_type { KM_BOUNCE_READ, KM_SKB_SUNRPC_DATA, diff --git a/include/asm-sparc/spinlock_types.h b/include/asm-sparc/spinlock_types.h index 0a0fb116c4ec..37cbe01c585b 100644 --- a/include/asm-sparc/spinlock_types.h +++ b/include/asm-sparc/spinlock_types.h @@ -6,7 +6,7 @@ #endif typedef struct { - unsigned char lock; + volatile unsigned char lock; } raw_spinlock_t; #define __RAW_SPIN_LOCK_UNLOCKED { 0 } diff --git a/include/asm-sparc64/hw_irq.h b/include/asm-sparc64/hw_irq.h index 8e44a8360829..16920a291f51 100644 --- a/include/asm-sparc64/hw_irq.h +++ b/include/asm-sparc64/hw_irq.h @@ -1,4 +1 @@ -#ifndef __ASM_SPARC64_HW_IRQ_H -#define __ASM_SPARC64_HW_IRQ_H - -#endif +#include diff --git a/include/asm-sparc64/idprom.h b/include/asm-sparc64/idprom.h index a363fa0a112a..c22f9c30bc78 100644 --- a/include/asm-sparc64/idprom.h +++ b/include/asm-sparc64/idprom.h @@ -1,25 +1 @@ -/* - * idprom.h: Macros and defines for idprom routines - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC64_IDPROM_H -#define _SPARC64_IDPROM_H - -#include - -struct idprom { - u8 id_format; /* Format identifier (always 0x01) */ - u8 id_machtype; /* Machine type */ - u8 id_ethaddr[6]; /* Hardware ethernet address */ - s32 id_date; /* Date of manufacture */ - u32 id_sernum:24; /* Unique serial number */ - u8 id_cksum; /* Checksum - xor of the data bytes */ - u8 reserved[16]; -}; - -extern struct idprom *idprom; -extern void idprom_init(void); - -#endif /* !(_SPARC_IDPROM_H) */ +#include diff --git a/include/asm-sparc64/kmap_types.h b/include/asm-sparc64/kmap_types.h index 34c1d3d9a3b0..276530cf5395 100644 --- a/include/asm-sparc64/kmap_types.h +++ b/include/asm-sparc64/kmap_types.h @@ -1,25 +1 @@ -#ifndef _ASM_KMAP_TYPES_H -#define _ASM_KMAP_TYPES_H - -/* Dummy header just to define km_type. None of this - * is actually used on sparc64. -DaveM - */ - -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; - -#endif +#include diff --git a/include/asm-sparc64/kvm.h b/include/asm-sparc64/kvm.h index 380537a77bf9..53564ad86b15 100644 --- a/include/asm-sparc64/kvm.h +++ b/include/asm-sparc64/kvm.h @@ -1,6 +1 @@ -#ifndef __LINUX_KVM_SPARC64_H -#define __LINUX_KVM_SPARC64_H - -/* sparc64 does not support KVM */ - -#endif +#include diff --git a/include/asm-sparc64/spinlock_types.h b/include/asm-sparc64/spinlock_types.h index e128112a0d7c..48d81c8734b5 100644 --- a/include/asm-sparc64/spinlock_types.h +++ b/include/asm-sparc64/spinlock_types.h @@ -1,20 +1 @@ -#ifndef __SPARC64_SPINLOCK_TYPES_H -#define __SPARC64_SPINLOCK_TYPES_H - -#ifndef __LINUX_SPINLOCK_TYPES_H -# error "please don't include this file directly" -#endif - -typedef struct { - volatile unsigned char lock; -} raw_spinlock_t; - -#define __RAW_SPIN_LOCK_UNLOCKED { 0 } - -typedef struct { - volatile unsigned int lock; -} raw_rwlock_t; - -#define __RAW_RW_LOCK_UNLOCKED { 0 } - -#endif +#include diff --git a/include/asm-sparc64/sunbpp.h b/include/asm-sparc64/sunbpp.h index 8e171b7a9f4f..9632be290eb5 100644 --- a/include/asm-sparc64/sunbpp.h +++ b/include/asm-sparc64/sunbpp.h @@ -1,80 +1 @@ -/* - * include/asm-sparc64/sunbpp.h - */ - -#ifndef _ASM_SPARC64_SUNBPP_H -#define _ASM_SPARC64_SUNBPP_H - -struct bpp_regs { - /* DMA registers */ - __volatile__ __u32 p_csr; /* DMA Control/Status Register */ - __volatile__ __u32 p_addr; /* Address Register */ - __volatile__ __u32 p_bcnt; /* Byte Count Register */ - __volatile__ __u32 p_tst_csr; /* Test Control/Status (DMA2 only) */ - /* Parallel Port registers */ - __volatile__ __u16 p_hcr; /* Hardware Configuration Register */ - __volatile__ __u16 p_ocr; /* Operation Configuration Register */ - __volatile__ __u8 p_dr; /* Parallel Data Register */ - __volatile__ __u8 p_tcr; /* Transfer Control Register */ - __volatile__ __u8 p_or; /* Output Register */ - __volatile__ __u8 p_ir; /* Input Register */ - __volatile__ __u16 p_icr; /* Interrupt Control Register */ -}; - -/* P_HCR. Time is in increments of SBus clock. */ -#define P_HCR_TEST 0x8000 /* Allows buried counters to be read */ -#define P_HCR_DSW 0x7f00 /* Data strobe width (in ticks) */ -#define P_HCR_DDS 0x007f /* Data setup before strobe (in ticks) */ - -/* P_OCR. */ -#define P_OCR_MEM_CLR 0x8000 -#define P_OCR_DATA_SRC 0x4000 /* ) */ -#define P_OCR_DS_DSEL 0x2000 /* ) Bidirectional */ -#define P_OCR_BUSY_DSEL 0x1000 /* ) selects */ -#define P_OCR_ACK_DSEL 0x0800 /* ) */ -#define P_OCR_EN_DIAG 0x0400 -#define P_OCR_BUSY_OP 0x0200 /* Busy operation */ -#define P_OCR_ACK_OP 0x0100 /* Ack operation */ -#define P_OCR_SRST 0x0080 /* Reset state machines. Not selfcleaning. */ -#define P_OCR_IDLE 0x0008 /* PP data transfer state machine is idle */ -#define P_OCR_V_ILCK 0x0002 /* Versatec faded. Zebra only. */ -#define P_OCR_EN_VER 0x0001 /* Enable Versatec (0 - enable). Zebra only. */ - -/* P_TCR */ -#define P_TCR_DIR 0x08 -#define P_TCR_BUSY 0x04 -#define P_TCR_ACK 0x02 -#define P_TCR_DS 0x01 /* Strobe */ - -/* P_OR */ -#define P_OR_V3 0x20 /* ) */ -#define P_OR_V2 0x10 /* ) on Zebra only */ -#define P_OR_V1 0x08 /* ) */ -#define P_OR_INIT 0x04 -#define P_OR_AFXN 0x02 /* Auto Feed */ -#define P_OR_SLCT_IN 0x01 - -/* P_IR */ -#define P_IR_PE 0x04 -#define P_IR_SLCT 0x02 -#define P_IR_ERR 0x01 - -/* P_ICR */ -#define P_DS_IRQ 0x8000 /* RW1 */ -#define P_ACK_IRQ 0x4000 /* RW1 */ -#define P_BUSY_IRQ 0x2000 /* RW1 */ -#define P_PE_IRQ 0x1000 /* RW1 */ -#define P_SLCT_IRQ 0x0800 /* RW1 */ -#define P_ERR_IRQ 0x0400 /* RW1 */ -#define P_DS_IRQ_EN 0x0200 /* RW Always on rising edge */ -#define P_ACK_IRQ_EN 0x0100 /* RW Always on rising edge */ -#define P_BUSY_IRP 0x0080 /* RW 1= rising edge */ -#define P_BUSY_IRQ_EN 0x0040 /* RW */ -#define P_PE_IRP 0x0020 /* RW 1= rising edge */ -#define P_PE_IRQ_EN 0x0010 /* RW */ -#define P_SLCT_IRP 0x0008 /* RW 1= rising edge */ -#define P_SLCT_IRQ_EN 0x0004 /* RW */ -#define P_ERR_IRP 0x0002 /* RW1 1= rising edge */ -#define P_ERR_IRQ_EN 0x0001 /* RW */ - -#endif /* !(_ASM_SPARC64_SUNBPP_H) */ +#include diff --git a/include/asm-sparc64/unaligned.h b/include/asm-sparc64/unaligned.h index edcebb09441e..19fbf9508acf 100644 --- a/include/asm-sparc64/unaligned.h +++ b/include/asm-sparc64/unaligned.h @@ -1,10 +1 @@ -#ifndef _ASM_SPARC64_UNALIGNED_H -#define _ASM_SPARC64_UNALIGNED_H - -#include -#include -#include -#define get_unaligned __get_unaligned_be -#define put_unaligned __put_unaligned_be - -#endif /* _ASM_SPARC64_UNALIGNED_H */ +#include -- cgit v1.2.3 From f5e706ad886b6a5eb59637830110b09ccebf01c5 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 17 Jul 2008 21:55:51 -0700 Subject: sparc: join the remaining header files With this commit all sparc64 header files are moved to asm-sparc. The remaining files (71 files) were too different to be trivially merged so divide them up in a _32.h and a _64.h file which are both included from the file with no bit size. The following script were used: cd include FILES=`wc -l asm-sparc64/*h | grep -v '^ 1' | cut -b 20-` for FILE in ${FILES}; do echo $FILE: BASE=`echo $FILE | cut -d '.' -f 1` FN32=${BASE}_32.h FN64=${BASE}_64.h GUARD=___ASM_SPARC_`echo $BASE | tr '-' '_' | tr [:lower:] [:upper:]`_H git mv asm-sparc/$FILE asm-sparc/$FN32 git mv asm-sparc64/$FILE asm-sparc/$FN64 echo git mv done printf "#ifndef %s\n" $GUARD > asm-sparc/$FILE printf "#define %s\n" $GUARD >> asm-sparc/$FILE printf "#if defined(__sparc__) && defined(__arch64__)\n" >> asm-sparc/$FILE printf "#include \n" $FN64 >> asm-sparc/$FILE printf "#else\n" >> asm-sparc/$FILE printf "#include \n" $FN32 >> asm-sparc/$FILE printf "#endif\n" >> asm-sparc/$FILE printf "#endif\n" >> asm-sparc/$FILE git add asm-sparc/$FILE echo new file done printf "#include \n" $FILE > asm-sparc64/$FILE git add asm-sparc64/$FILE echo sparc64 file done done The guard contains three '_' to avoid conflict with existing guards. In additing the two Kbuild files are emptied to avoid breaking headers_* targets. We will reintroduce the exported header files when the necessary kbuild changes are merged. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- include/asm-sparc/Kbuild | 23 +- include/asm-sparc/atomic.h | 169 +------- include/asm-sparc/atomic_32.h | 165 ++++++++ include/asm-sparc/atomic_64.h | 128 ++++++ include/asm-sparc/auxio.h | 97 +---- include/asm-sparc/auxio_32.h | 89 +++++ include/asm-sparc/auxio_64.h | 100 +++++ include/asm-sparc/bitops.h | 117 +----- include/asm-sparc/bitops_32.h | 111 ++++++ include/asm-sparc/bitops_64.h | 107 +++++ include/asm-sparc/cacheflush.h | 93 +---- include/asm-sparc/cacheflush_32.h | 85 ++++ include/asm-sparc/cacheflush_64.h | 76 ++++ include/asm-sparc/checksum.h | 249 +----------- include/asm-sparc/checksum_32.h | 241 ++++++++++++ include/asm-sparc/checksum_64.h | 167 ++++++++ include/asm-sparc/cpudata.h | 35 +- include/asm-sparc/cpudata_32.h | 27 ++ include/asm-sparc/cpudata_64.h | 240 ++++++++++++ include/asm-sparc/delay.h | 42 +- include/asm-sparc/delay_32.h | 34 ++ include/asm-sparc/delay_64.h | 17 + include/asm-sparc/dma-mapping.h | 17 +- include/asm-sparc/dma-mapping_32.h | 11 + include/asm-sparc/dma-mapping_64.h | 154 ++++++++ include/asm-sparc/dma.h | 290 +------------- include/asm-sparc/dma_32.h | 288 ++++++++++++++ include/asm-sparc/dma_64.h | 205 ++++++++++ include/asm-sparc/ebus.h | 105 +---- include/asm-sparc/ebus_32.h | 99 +++++ include/asm-sparc/ebus_64.h | 94 +++++ include/asm-sparc/elf.h | 149 +------ include/asm-sparc/elf_32.h | 145 +++++++ include/asm-sparc/elf_64.h | 217 ++++++++++ include/asm-sparc/floppy.h | 394 +------------------ include/asm-sparc/floppy_32.h | 388 ++++++++++++++++++ include/asm-sparc/floppy_64.h | 782 ++++++++++++++++++++++++++++++++++++ include/asm-sparc/futex.h | 12 +- include/asm-sparc/futex_32.h | 6 + include/asm-sparc/futex_64.h | 110 ++++++ include/asm-sparc/hardirq.h | 31 +- include/asm-sparc/hardirq_32.h | 23 ++ include/asm-sparc/hardirq_64.h | 19 + include/asm-sparc/head.h | 106 +---- include/asm-sparc/head_32.h | 102 +++++ include/asm-sparc/head_64.h | 76 ++++ include/asm-sparc/ide.h | 103 +---- include/asm-sparc/ide_32.h | 95 +++++ include/asm-sparc/ide_64.h | 118 ++++++ include/asm-sparc/io.h | 331 +--------------- include/asm-sparc/io_32.h | 325 +++++++++++++++ include/asm-sparc/io_64.h | 511 ++++++++++++++++++++++++ include/asm-sparc/iommu.h | 129 +----- include/asm-sparc/iommu_32.h | 121 ++++++ include/asm-sparc/iommu_64.h | 62 +++ include/asm-sparc/ipcbuf.h | 39 +- include/asm-sparc/ipcbuf_32.h | 31 ++ include/asm-sparc/ipcbuf_64.h | 28 ++ include/asm-sparc/irq.h | 21 +- include/asm-sparc/irq_32.h | 15 + include/asm-sparc/irq_64.h | 93 +++++ include/asm-sparc/irqflags.h | 47 +-- include/asm-sparc/irqflags_32.h | 39 ++ include/asm-sparc/irqflags_64.h | 89 +++++ include/asm-sparc/kdebug.h | 81 +--- include/asm-sparc/kdebug_32.h | 73 ++++ include/asm-sparc/kdebug_64.h | 19 + include/asm-sparc/mc146818rtc.h | 35 +- include/asm-sparc/mc146818rtc_32.h | 29 ++ include/asm-sparc/mc146818rtc_64.h | 34 ++ include/asm-sparc/mmu.h | 13 +- include/asm-sparc/mmu_32.h | 7 + include/asm-sparc/mmu_64.h | 127 ++++++ include/asm-sparc/mmu_context.h | 50 +-- include/asm-sparc/mmu_context_32.h | 42 ++ include/asm-sparc/mmu_context_64.h | 155 ++++++++ include/asm-sparc/module.h | 15 +- include/asm-sparc/module_32.h | 7 + include/asm-sparc/module_64.h | 7 + include/asm-sparc/mostek.h | 173 +------- include/asm-sparc/mostek_32.h | 171 ++++++++ include/asm-sparc/mostek_64.h | 143 +++++++ include/asm-sparc/namei.h | 21 +- include/asm-sparc/namei_32.h | 13 + include/asm-sparc/namei_64.h | 13 + include/asm-sparc/of_platform.h | 32 +- include/asm-sparc/of_platform_32.h | 24 ++ include/asm-sparc/of_platform_64.h | 25 ++ include/asm-sparc/openprom.h | 263 +------------ include/asm-sparc/openprom_32.h | 255 ++++++++++++ include/asm-sparc/openprom_64.h | 280 +++++++++++++ include/asm-sparc/oplib.h | 278 +------------ include/asm-sparc/oplib_32.h | 272 +++++++++++++ include/asm-sparc/oplib_64.h | 322 +++++++++++++++ include/asm-sparc/page.h | 165 +------- include/asm-sparc/page_32.h | 163 ++++++++ include/asm-sparc/page_64.h | 142 +++++++ include/asm-sparc/pci.h | 176 +-------- include/asm-sparc/pci_32.h | 170 ++++++++ include/asm-sparc/pci_64.h | 209 ++++++++++ include/asm-sparc/percpu.h | 14 +- include/asm-sparc/percpu_32.h | 6 + include/asm-sparc/percpu_64.h | 28 ++ include/asm-sparc/pgalloc.h | 76 +--- include/asm-sparc/pgalloc_32.h | 68 ++++ include/asm-sparc/pgalloc_64.h | 81 ++++ include/asm-sparc/pgtable.h | 482 +---------------------- include/asm-sparc/pgtable_32.h | 480 +++++++++++++++++++++++ include/asm-sparc/pgtable_64.h | 781 ++++++++++++++++++++++++++++++++++++ include/asm-sparc/posix_types.h | 124 +----- include/asm-sparc/posix_types_32.h | 118 ++++++ include/asm-sparc/posix_types_64.h | 122 ++++++ include/asm-sparc/processor.h | 132 +------ include/asm-sparc/processor_32.h | 128 ++++++ include/asm-sparc/processor_64.h | 237 +++++++++++ include/asm-sparc/ptrace.h | 179 +-------- include/asm-sparc/ptrace_32.h | 175 +++++++++ include/asm-sparc/ptrace_64.h | 346 ++++++++++++++++ include/asm-sparc/reg.h | 87 +---- include/asm-sparc/reg_32.h | 79 ++++ include/asm-sparc/reg_64.h | 56 +++ include/asm-sparc/sbus.h | 161 +------- include/asm-sparc/sbus_32.h | 153 ++++++++ include/asm-sparc/sbus_64.h | 190 +++++++++ include/asm-sparc/scatterlist.h | 32 +- include/asm-sparc/scatterlist_32.h | 26 ++ include/asm-sparc/scatterlist_64.h | 27 ++ include/asm-sparc/sections.h | 12 +- include/asm-sparc/sections_32.h | 6 + include/asm-sparc/sections_64.h | 9 + include/asm-sparc/sfp-machine.h | 214 +--------- include/asm-sparc/sfp-machine_32.h | 212 ++++++++++ include/asm-sparc/sfp-machine_64.h | 93 +++++ include/asm-sparc/shmparam.h | 19 +- include/asm-sparc/shmparam_32.h | 11 + include/asm-sparc/shmparam_64.h | 10 + include/asm-sparc/sigcontext.h | 70 +--- include/asm-sparc/sigcontext_32.h | 62 +++ include/asm-sparc/sigcontext_64.h | 87 +++++ include/asm-sparc/siginfo.h | 25 +- include/asm-sparc/siginfo_32.h | 17 + include/asm-sparc/siginfo_64.h | 32 ++ include/asm-sparc/signal.h | 209 +--------- include/asm-sparc/signal_32.h | 207 ++++++++++ include/asm-sparc/signal_64.h | 194 +++++++++ include/asm-sparc/smp.h | 177 +-------- include/asm-sparc/smp_32.h | 173 ++++++++ include/asm-sparc/smp_64.h | 64 +++ include/asm-sparc/spinlock.h | 200 +--------- include/asm-sparc/spinlock_32.h | 192 +++++++++ include/asm-sparc/spinlock_64.h | 250 ++++++++++++ include/asm-sparc/stat.h | 82 +--- include/asm-sparc/stat_32.h | 76 ++++ include/asm-sparc/stat_64.h | 47 +++ include/asm-sparc/statfs.h | 12 +- include/asm-sparc/statfs_32.h | 6 + include/asm-sparc/statfs_64.h | 54 +++ include/asm-sparc/string.h | 213 +--------- include/asm-sparc/string_32.h | 205 ++++++++++ include/asm-sparc/string_64.h | 83 ++++ include/asm-sparc/system.h | 290 +------------- include/asm-sparc/system_32.h | 288 ++++++++++++++ include/asm-sparc/system_64.h | 355 +++++++++++++++++ include/asm-sparc/thread_info.h | 157 +------- include/asm-sparc/thread_info_32.h | 151 +++++++ include/asm-sparc/thread_info_64.h | 277 +++++++++++++ include/asm-sparc/timer.h | 111 +----- include/asm-sparc/timer_32.h | 107 +++++ include/asm-sparc/timer_64.h | 30 ++ include/asm-sparc/timex.h | 21 +- include/asm-sparc/timex_32.h | 15 + include/asm-sparc/timex_64.h | 19 + include/asm-sparc/tlb.h | 32 +- include/asm-sparc/tlb_32.h | 24 ++ include/asm-sparc/tlb_64.h | 111 ++++++ include/asm-sparc/tlbflush.h | 68 +--- include/asm-sparc/tlbflush_32.h | 60 +++ include/asm-sparc/tlbflush_64.h | 44 +++ include/asm-sparc/topology.h | 14 +- include/asm-sparc/topology_32.h | 6 + include/asm-sparc/topology_64.h | 86 ++++ include/asm-sparc/uaccess.h | 342 +--------------- include/asm-sparc/uaccess_32.h | 336 ++++++++++++++++ include/asm-sparc/uaccess_64.h | 273 +++++++++++++ include/asm-sparc/unistd.h | 386 +----------------- include/asm-sparc/unistd_32.h | 378 ++++++++++++++++++ include/asm-sparc/unistd_64.h | 373 ++++++++++++++++++ include/asm-sparc/xor.h | 277 +------------ include/asm-sparc/xor_32.h | 269 +++++++++++++ include/asm-sparc/xor_64.h | 70 ++++ include/asm-sparc64/Kbuild | 22 +- include/asm-sparc64/atomic.h | 129 +----- include/asm-sparc64/auxio.h | 101 +---- include/asm-sparc64/bitops.h | 108 +---- include/asm-sparc64/cacheflush.h | 77 +--- include/asm-sparc64/checksum.h | 168 +------- include/asm-sparc64/cpudata.h | 241 +----------- include/asm-sparc64/delay.h | 18 +- include/asm-sparc64/dma-mapping.h | 155 +------- include/asm-sparc64/dma.h | 206 +--------- include/asm-sparc64/ebus.h | 95 +---- include/asm-sparc64/elf.h | 218 +---------- include/asm-sparc64/floppy.h | 783 +------------------------------------ include/asm-sparc64/futex.h | 111 +----- include/asm-sparc64/hardirq.h | 20 +- include/asm-sparc64/head.h | 77 +--- include/asm-sparc64/ide.h | 119 +----- include/asm-sparc64/io.h | 512 +----------------------- include/asm-sparc64/iommu.h | 63 +-- include/asm-sparc64/ipcbuf.h | 29 +- include/asm-sparc64/irq.h | 94 +---- include/asm-sparc64/irqflags.h | 90 +---- include/asm-sparc64/kdebug.h | 20 +- include/asm-sparc64/mc146818rtc.h | 35 +- include/asm-sparc64/mmu.h | 128 +----- include/asm-sparc64/mmu_context.h | 156 +------- include/asm-sparc64/module.h | 8 +- include/asm-sparc64/mostek.h | 144 +------ include/asm-sparc64/namei.h | 14 +- include/asm-sparc64/of_platform.h | 26 +- include/asm-sparc64/openprom.h | 281 +------------ include/asm-sparc64/oplib.h | 323 +-------------- include/asm-sparc64/page.h | 143 +------ include/asm-sparc64/pci.h | 210 +--------- include/asm-sparc64/percpu.h | 29 +- include/asm-sparc64/pgalloc.h | 82 +--- include/asm-sparc64/pgtable.h | 782 +----------------------------------- include/asm-sparc64/posix_types.h | 123 +----- include/asm-sparc64/processor.h | 238 +---------- include/asm-sparc64/ptrace.h | 347 +--------------- include/asm-sparc64/reg.h | 57 +-- include/asm-sparc64/sbus.h | 191 +-------- include/asm-sparc64/scatterlist.h | 28 +- include/asm-sparc64/sections.h | 10 +- include/asm-sparc64/sfp-machine.h | 94 +---- include/asm-sparc64/shmparam.h | 11 +- include/asm-sparc64/sigcontext.h | 88 +---- include/asm-sparc64/siginfo.h | 33 +- include/asm-sparc64/signal.h | 195 +-------- include/asm-sparc64/smp.h | 65 +-- include/asm-sparc64/spinlock.h | 251 +----------- include/asm-sparc64/stat.h | 48 +-- include/asm-sparc64/statfs.h | 55 +-- include/asm-sparc64/string.h | 84 +--- include/asm-sparc64/system.h | 356 +---------------- include/asm-sparc64/thread_info.h | 278 +------------ include/asm-sparc64/timer.h | 31 +- include/asm-sparc64/timex.h | 20 +- include/asm-sparc64/tlb.h | 112 +----- include/asm-sparc64/tlbflush.h | 45 +-- include/asm-sparc64/topology.h | 87 +---- include/asm-sparc64/uaccess.h | 274 +------------ include/asm-sparc64/unistd.h | 374 +----------------- include/asm-sparc64/xor.h | 71 +--- 254 files changed, 17513 insertions(+), 16987 deletions(-) create mode 100644 include/asm-sparc/atomic_32.h create mode 100644 include/asm-sparc/atomic_64.h create mode 100644 include/asm-sparc/auxio_32.h create mode 100644 include/asm-sparc/auxio_64.h create mode 100644 include/asm-sparc/bitops_32.h create mode 100644 include/asm-sparc/bitops_64.h create mode 100644 include/asm-sparc/cacheflush_32.h create mode 100644 include/asm-sparc/cacheflush_64.h create mode 100644 include/asm-sparc/checksum_32.h create mode 100644 include/asm-sparc/checksum_64.h create mode 100644 include/asm-sparc/cpudata_32.h create mode 100644 include/asm-sparc/cpudata_64.h create mode 100644 include/asm-sparc/delay_32.h create mode 100644 include/asm-sparc/delay_64.h create mode 100644 include/asm-sparc/dma-mapping_32.h create mode 100644 include/asm-sparc/dma-mapping_64.h create mode 100644 include/asm-sparc/dma_32.h create mode 100644 include/asm-sparc/dma_64.h create mode 100644 include/asm-sparc/ebus_32.h create mode 100644 include/asm-sparc/ebus_64.h create mode 100644 include/asm-sparc/elf_32.h create mode 100644 include/asm-sparc/elf_64.h create mode 100644 include/asm-sparc/floppy_32.h create mode 100644 include/asm-sparc/floppy_64.h create mode 100644 include/asm-sparc/futex_32.h create mode 100644 include/asm-sparc/futex_64.h create mode 100644 include/asm-sparc/hardirq_32.h create mode 100644 include/asm-sparc/hardirq_64.h create mode 100644 include/asm-sparc/head_32.h create mode 100644 include/asm-sparc/head_64.h create mode 100644 include/asm-sparc/ide_32.h create mode 100644 include/asm-sparc/ide_64.h create mode 100644 include/asm-sparc/io_32.h create mode 100644 include/asm-sparc/io_64.h create mode 100644 include/asm-sparc/iommu_32.h create mode 100644 include/asm-sparc/iommu_64.h create mode 100644 include/asm-sparc/ipcbuf_32.h create mode 100644 include/asm-sparc/ipcbuf_64.h create mode 100644 include/asm-sparc/irq_32.h create mode 100644 include/asm-sparc/irq_64.h create mode 100644 include/asm-sparc/irqflags_32.h create mode 100644 include/asm-sparc/irqflags_64.h create mode 100644 include/asm-sparc/kdebug_32.h create mode 100644 include/asm-sparc/kdebug_64.h create mode 100644 include/asm-sparc/mc146818rtc_32.h create mode 100644 include/asm-sparc/mc146818rtc_64.h create mode 100644 include/asm-sparc/mmu_32.h create mode 100644 include/asm-sparc/mmu_64.h create mode 100644 include/asm-sparc/mmu_context_32.h create mode 100644 include/asm-sparc/mmu_context_64.h create mode 100644 include/asm-sparc/module_32.h create mode 100644 include/asm-sparc/module_64.h create mode 100644 include/asm-sparc/mostek_32.h create mode 100644 include/asm-sparc/mostek_64.h create mode 100644 include/asm-sparc/namei_32.h create mode 100644 include/asm-sparc/namei_64.h create mode 100644 include/asm-sparc/of_platform_32.h create mode 100644 include/asm-sparc/of_platform_64.h create mode 100644 include/asm-sparc/openprom_32.h create mode 100644 include/asm-sparc/openprom_64.h create mode 100644 include/asm-sparc/oplib_32.h create mode 100644 include/asm-sparc/oplib_64.h create mode 100644 include/asm-sparc/page_32.h create mode 100644 include/asm-sparc/page_64.h create mode 100644 include/asm-sparc/pci_32.h create mode 100644 include/asm-sparc/pci_64.h create mode 100644 include/asm-sparc/percpu_32.h create mode 100644 include/asm-sparc/percpu_64.h create mode 100644 include/asm-sparc/pgalloc_32.h create mode 100644 include/asm-sparc/pgalloc_64.h create mode 100644 include/asm-sparc/pgtable_32.h create mode 100644 include/asm-sparc/pgtable_64.h create mode 100644 include/asm-sparc/posix_types_32.h create mode 100644 include/asm-sparc/posix_types_64.h create mode 100644 include/asm-sparc/processor_32.h create mode 100644 include/asm-sparc/processor_64.h create mode 100644 include/asm-sparc/ptrace_32.h create mode 100644 include/asm-sparc/ptrace_64.h create mode 100644 include/asm-sparc/reg_32.h create mode 100644 include/asm-sparc/reg_64.h create mode 100644 include/asm-sparc/sbus_32.h create mode 100644 include/asm-sparc/sbus_64.h create mode 100644 include/asm-sparc/scatterlist_32.h create mode 100644 include/asm-sparc/scatterlist_64.h create mode 100644 include/asm-sparc/sections_32.h create mode 100644 include/asm-sparc/sections_64.h create mode 100644 include/asm-sparc/sfp-machine_32.h create mode 100644 include/asm-sparc/sfp-machine_64.h create mode 100644 include/asm-sparc/shmparam_32.h create mode 100644 include/asm-sparc/shmparam_64.h create mode 100644 include/asm-sparc/sigcontext_32.h create mode 100644 include/asm-sparc/sigcontext_64.h create mode 100644 include/asm-sparc/siginfo_32.h create mode 100644 include/asm-sparc/siginfo_64.h create mode 100644 include/asm-sparc/signal_32.h create mode 100644 include/asm-sparc/signal_64.h create mode 100644 include/asm-sparc/smp_32.h create mode 100644 include/asm-sparc/smp_64.h create mode 100644 include/asm-sparc/spinlock_32.h create mode 100644 include/asm-sparc/spinlock_64.h create mode 100644 include/asm-sparc/stat_32.h create mode 100644 include/asm-sparc/stat_64.h create mode 100644 include/asm-sparc/statfs_32.h create mode 100644 include/asm-sparc/statfs_64.h create mode 100644 include/asm-sparc/string_32.h create mode 100644 include/asm-sparc/string_64.h create mode 100644 include/asm-sparc/system_32.h create mode 100644 include/asm-sparc/system_64.h create mode 100644 include/asm-sparc/thread_info_32.h create mode 100644 include/asm-sparc/thread_info_64.h create mode 100644 include/asm-sparc/timer_32.h create mode 100644 include/asm-sparc/timer_64.h create mode 100644 include/asm-sparc/timex_32.h create mode 100644 include/asm-sparc/timex_64.h create mode 100644 include/asm-sparc/tlb_32.h create mode 100644 include/asm-sparc/tlb_64.h create mode 100644 include/asm-sparc/tlbflush_32.h create mode 100644 include/asm-sparc/tlbflush_64.h create mode 100644 include/asm-sparc/topology_32.h create mode 100644 include/asm-sparc/topology_64.h create mode 100644 include/asm-sparc/uaccess_32.h create mode 100644 include/asm-sparc/uaccess_64.h create mode 100644 include/asm-sparc/unistd_32.h create mode 100644 include/asm-sparc/unistd_64.h create mode 100644 include/asm-sparc/xor_32.h create mode 100644 include/asm-sparc/xor_64.h (limited to 'include') diff --git a/include/asm-sparc/Kbuild b/include/asm-sparc/Kbuild index c83e3c0aa30b..6cdaf9d33b38 100644 --- a/include/asm-sparc/Kbuild +++ b/include/asm-sparc/Kbuild @@ -1,22 +1 @@ -include include/asm-generic/Kbuild.asm - -header-y += apc.h -header-y += asi.h -header-y += bpp.h -header-y += display7seg.h -header-y += envctrl.h -header-y += jsflash.h -header-y += openprom.h -header-y += openpromio.h -header-y += psrcompat.h -header-y += pstate.h -header-y += reg.h -header-y += traps.h -header-y += uctx.h -header-y += utrap.h -header-y += vfc_ioctls.h -header-y += watchdog.h - -unifdef-y += fbio.h -unifdef-y += perfctr.h -unifdef-y += psr.h +# dummy file to avoid breaking make headers_install diff --git a/include/asm-sparc/atomic.h b/include/asm-sparc/atomic.h index 5c944b5a8040..66d8166ec1d7 100644 --- a/include/asm-sparc/atomic.h +++ b/include/asm-sparc/atomic.h @@ -1,165 +1,8 @@ -/* atomic.h: These still suck, but the I-cache hit rate is higher. - * - * Copyright (C) 1996 David S. Miller (davem@davemloft.net) - * Copyright (C) 2000 Anton Blanchard (anton@linuxcare.com.au) - * Copyright (C) 2007 Kyle McMartin (kyle@parisc-linux.org) - * - * Additions by Keith M Wesolowski (wesolows@foobazco.org) based - * on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf . - */ - -#ifndef __ARCH_SPARC_ATOMIC__ -#define __ARCH_SPARC_ATOMIC__ - -#include - -typedef struct { volatile int counter; } atomic_t; - -#ifdef __KERNEL__ - -#define ATOMIC_INIT(i) { (i) } - -extern int __atomic_add_return(int, atomic_t *); -extern int atomic_cmpxchg(atomic_t *, int, int); -#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) -extern int atomic_add_unless(atomic_t *, int, int); -extern void atomic_set(atomic_t *, int); - -#define atomic_read(v) ((v)->counter) - -#define atomic_add(i, v) ((void)__atomic_add_return( (int)(i), (v))) -#define atomic_sub(i, v) ((void)__atomic_add_return(-(int)(i), (v))) -#define atomic_inc(v) ((void)__atomic_add_return( 1, (v))) -#define atomic_dec(v) ((void)__atomic_add_return( -1, (v))) - -#define atomic_add_return(i, v) (__atomic_add_return( (int)(i), (v))) -#define atomic_sub_return(i, v) (__atomic_add_return(-(int)(i), (v))) -#define atomic_inc_return(v) (__atomic_add_return( 1, (v))) -#define atomic_dec_return(v) (__atomic_add_return( -1, (v))) - -#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) - -/* - * atomic_inc_and_test - increment and test - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) - -#define atomic_dec_and_test(v) (atomic_dec_return(v) == 0) -#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0) - -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -/* This is the old 24-bit implementation. It's still used internally - * by some sparc-specific code, notably the semaphore implementation. - */ -typedef struct { volatile int counter; } atomic24_t; - -#ifndef CONFIG_SMP - -#define ATOMIC24_INIT(i) { (i) } -#define atomic24_read(v) ((v)->counter) -#define atomic24_set(v, i) (((v)->counter) = i) - +#ifndef ___ASM_SPARC_ATOMIC_H +#define ___ASM_SPARC_ATOMIC_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -/* We do the bulk of the actual work out of line in two common - * routines in assembler, see arch/sparc/lib/atomic.S for the - * "fun" details. - * - * For SMP the trick is you embed the spin lock byte within - * the word, use the low byte so signedness is easily retained - * via a quick arithmetic shift. It looks like this: - * - * ---------------------------------------- - * | signed 24-bit counter value | lock | atomic_t - * ---------------------------------------- - * 31 8 7 0 - */ - -#define ATOMIC24_INIT(i) { ((i) << 8) } - -static inline int atomic24_read(const atomic24_t *v) -{ - int ret = v->counter; - - while(ret & 0xff) - ret = v->counter; - - return ret >> 8; -} - -#define atomic24_set(v, i) (((v)->counter) = ((i) << 8)) +#include +#endif #endif - -static inline int __atomic24_add(int i, atomic24_t *v) -{ - register volatile int *ptr asm("g1"); - register int increment asm("g2"); - register int tmp1 asm("g3"); - register int tmp2 asm("g4"); - register int tmp3 asm("g7"); - - ptr = &v->counter; - increment = i; - - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___atomic24_add\n\t" - " add %%o7, 8, %%o7\n" - : "=&r" (increment), "=r" (tmp1), "=r" (tmp2), "=r" (tmp3) - : "0" (increment), "r" (ptr) - : "memory", "cc"); - - return increment; -} - -static inline int __atomic24_sub(int i, atomic24_t *v) -{ - register volatile int *ptr asm("g1"); - register int increment asm("g2"); - register int tmp1 asm("g3"); - register int tmp2 asm("g4"); - register int tmp3 asm("g7"); - - ptr = &v->counter; - increment = i; - - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___atomic24_sub\n\t" - " add %%o7, 8, %%o7\n" - : "=&r" (increment), "=r" (tmp1), "=r" (tmp2), "=r" (tmp3) - : "0" (increment), "r" (ptr) - : "memory", "cc"); - - return increment; -} - -#define atomic24_add(i, v) ((void)__atomic24_add((i), (v))) -#define atomic24_sub(i, v) ((void)__atomic24_sub((i), (v))) - -#define atomic24_dec_return(v) __atomic24_sub(1, (v)) -#define atomic24_inc_return(v) __atomic24_add(1, (v)) - -#define atomic24_sub_and_test(i, v) (__atomic24_sub((i), (v)) == 0) -#define atomic24_dec_and_test(v) (__atomic24_sub(1, (v)) == 0) - -#define atomic24_inc(v) ((void)__atomic24_add(1, (v))) -#define atomic24_dec(v) ((void)__atomic24_sub(1, (v))) - -#define atomic24_add_negative(i, v) (__atomic24_add((i), (v)) < 0) - -/* Atomic operations are already serializing */ -#define smp_mb__before_atomic_dec() barrier() -#define smp_mb__after_atomic_dec() barrier() -#define smp_mb__before_atomic_inc() barrier() -#define smp_mb__after_atomic_inc() barrier() - -#endif /* !(__KERNEL__) */ - -#include -#endif /* !(__ARCH_SPARC_ATOMIC__) */ diff --git a/include/asm-sparc/atomic_32.h b/include/asm-sparc/atomic_32.h new file mode 100644 index 000000000000..5c944b5a8040 --- /dev/null +++ b/include/asm-sparc/atomic_32.h @@ -0,0 +1,165 @@ +/* atomic.h: These still suck, but the I-cache hit rate is higher. + * + * Copyright (C) 1996 David S. Miller (davem@davemloft.net) + * Copyright (C) 2000 Anton Blanchard (anton@linuxcare.com.au) + * Copyright (C) 2007 Kyle McMartin (kyle@parisc-linux.org) + * + * Additions by Keith M Wesolowski (wesolows@foobazco.org) based + * on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf . + */ + +#ifndef __ARCH_SPARC_ATOMIC__ +#define __ARCH_SPARC_ATOMIC__ + +#include + +typedef struct { volatile int counter; } atomic_t; + +#ifdef __KERNEL__ + +#define ATOMIC_INIT(i) { (i) } + +extern int __atomic_add_return(int, atomic_t *); +extern int atomic_cmpxchg(atomic_t *, int, int); +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) +extern int atomic_add_unless(atomic_t *, int, int); +extern void atomic_set(atomic_t *, int); + +#define atomic_read(v) ((v)->counter) + +#define atomic_add(i, v) ((void)__atomic_add_return( (int)(i), (v))) +#define atomic_sub(i, v) ((void)__atomic_add_return(-(int)(i), (v))) +#define atomic_inc(v) ((void)__atomic_add_return( 1, (v))) +#define atomic_dec(v) ((void)__atomic_add_return( -1, (v))) + +#define atomic_add_return(i, v) (__atomic_add_return( (int)(i), (v))) +#define atomic_sub_return(i, v) (__atomic_add_return(-(int)(i), (v))) +#define atomic_inc_return(v) (__atomic_add_return( 1, (v))) +#define atomic_dec_return(v) (__atomic_add_return( -1, (v))) + +#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) + +/* + * atomic_inc_and_test - increment and test + * @v: pointer of type atomic_t + * + * Atomically increments @v by 1 + * and returns true if the result is zero, or false for all + * other cases. + */ +#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) + +#define atomic_dec_and_test(v) (atomic_dec_return(v) == 0) +#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0) + +#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) + +/* This is the old 24-bit implementation. It's still used internally + * by some sparc-specific code, notably the semaphore implementation. + */ +typedef struct { volatile int counter; } atomic24_t; + +#ifndef CONFIG_SMP + +#define ATOMIC24_INIT(i) { (i) } +#define atomic24_read(v) ((v)->counter) +#define atomic24_set(v, i) (((v)->counter) = i) + +#else +/* We do the bulk of the actual work out of line in two common + * routines in assembler, see arch/sparc/lib/atomic.S for the + * "fun" details. + * + * For SMP the trick is you embed the spin lock byte within + * the word, use the low byte so signedness is easily retained + * via a quick arithmetic shift. It looks like this: + * + * ---------------------------------------- + * | signed 24-bit counter value | lock | atomic_t + * ---------------------------------------- + * 31 8 7 0 + */ + +#define ATOMIC24_INIT(i) { ((i) << 8) } + +static inline int atomic24_read(const atomic24_t *v) +{ + int ret = v->counter; + + while(ret & 0xff) + ret = v->counter; + + return ret >> 8; +} + +#define atomic24_set(v, i) (((v)->counter) = ((i) << 8)) +#endif + +static inline int __atomic24_add(int i, atomic24_t *v) +{ + register volatile int *ptr asm("g1"); + register int increment asm("g2"); + register int tmp1 asm("g3"); + register int tmp2 asm("g4"); + register int tmp3 asm("g7"); + + ptr = &v->counter; + increment = i; + + __asm__ __volatile__( + "mov %%o7, %%g4\n\t" + "call ___atomic24_add\n\t" + " add %%o7, 8, %%o7\n" + : "=&r" (increment), "=r" (tmp1), "=r" (tmp2), "=r" (tmp3) + : "0" (increment), "r" (ptr) + : "memory", "cc"); + + return increment; +} + +static inline int __atomic24_sub(int i, atomic24_t *v) +{ + register volatile int *ptr asm("g1"); + register int increment asm("g2"); + register int tmp1 asm("g3"); + register int tmp2 asm("g4"); + register int tmp3 asm("g7"); + + ptr = &v->counter; + increment = i; + + __asm__ __volatile__( + "mov %%o7, %%g4\n\t" + "call ___atomic24_sub\n\t" + " add %%o7, 8, %%o7\n" + : "=&r" (increment), "=r" (tmp1), "=r" (tmp2), "=r" (tmp3) + : "0" (increment), "r" (ptr) + : "memory", "cc"); + + return increment; +} + +#define atomic24_add(i, v) ((void)__atomic24_add((i), (v))) +#define atomic24_sub(i, v) ((void)__atomic24_sub((i), (v))) + +#define atomic24_dec_return(v) __atomic24_sub(1, (v)) +#define atomic24_inc_return(v) __atomic24_add(1, (v)) + +#define atomic24_sub_and_test(i, v) (__atomic24_sub((i), (v)) == 0) +#define atomic24_dec_and_test(v) (__atomic24_sub(1, (v)) == 0) + +#define atomic24_inc(v) ((void)__atomic24_add(1, (v))) +#define atomic24_dec(v) ((void)__atomic24_sub(1, (v))) + +#define atomic24_add_negative(i, v) (__atomic24_add((i), (v)) < 0) + +/* Atomic operations are already serializing */ +#define smp_mb__before_atomic_dec() barrier() +#define smp_mb__after_atomic_dec() barrier() +#define smp_mb__before_atomic_inc() barrier() +#define smp_mb__after_atomic_inc() barrier() + +#endif /* !(__KERNEL__) */ + +#include +#endif /* !(__ARCH_SPARC_ATOMIC__) */ diff --git a/include/asm-sparc/atomic_64.h b/include/asm-sparc/atomic_64.h new file mode 100644 index 000000000000..2c71ec4a3b18 --- /dev/null +++ b/include/asm-sparc/atomic_64.h @@ -0,0 +1,128 @@ +/* atomic.h: Thankfully the V9 is at least reasonable for this + * stuff. + * + * Copyright (C) 1996, 1997, 2000 David S. Miller (davem@redhat.com) + */ + +#ifndef __ARCH_SPARC64_ATOMIC__ +#define __ARCH_SPARC64_ATOMIC__ + +#include +#include + +typedef struct { volatile int counter; } atomic_t; +typedef struct { volatile __s64 counter; } atomic64_t; + +#define ATOMIC_INIT(i) { (i) } +#define ATOMIC64_INIT(i) { (i) } + +#define atomic_read(v) ((v)->counter) +#define atomic64_read(v) ((v)->counter) + +#define atomic_set(v, i) (((v)->counter) = i) +#define atomic64_set(v, i) (((v)->counter) = i) + +extern void atomic_add(int, atomic_t *); +extern void atomic64_add(int, atomic64_t *); +extern void atomic_sub(int, atomic_t *); +extern void atomic64_sub(int, atomic64_t *); + +extern int atomic_add_ret(int, atomic_t *); +extern int atomic64_add_ret(int, atomic64_t *); +extern int atomic_sub_ret(int, atomic_t *); +extern int atomic64_sub_ret(int, atomic64_t *); + +#define atomic_dec_return(v) atomic_sub_ret(1, v) +#define atomic64_dec_return(v) atomic64_sub_ret(1, v) + +#define atomic_inc_return(v) atomic_add_ret(1, v) +#define atomic64_inc_return(v) atomic64_add_ret(1, v) + +#define atomic_sub_return(i, v) atomic_sub_ret(i, v) +#define atomic64_sub_return(i, v) atomic64_sub_ret(i, v) + +#define atomic_add_return(i, v) atomic_add_ret(i, v) +#define atomic64_add_return(i, v) atomic64_add_ret(i, v) + +/* + * atomic_inc_and_test - increment and test + * @v: pointer of type atomic_t + * + * Atomically increments @v by 1 + * and returns true if the result is zero, or false for all + * other cases. + */ +#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) +#define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) + +#define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0) +#define atomic64_sub_and_test(i, v) (atomic64_sub_ret(i, v) == 0) + +#define atomic_dec_and_test(v) (atomic_sub_ret(1, v) == 0) +#define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0) + +#define atomic_inc(v) atomic_add(1, v) +#define atomic64_inc(v) atomic64_add(1, v) + +#define atomic_dec(v) atomic_sub(1, v) +#define atomic64_dec(v) atomic64_sub(1, v) + +#define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0) +#define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0) + +#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) + +static inline int atomic_add_unless(atomic_t *v, int a, int u) +{ + int c, old; + c = atomic_read(v); + for (;;) { + if (unlikely(c == (u))) + break; + old = atomic_cmpxchg((v), c, c + (a)); + if (likely(old == c)) + break; + c = old; + } + return c != (u); +} + +#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) + +#define atomic64_cmpxchg(v, o, n) \ + ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n))) +#define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) + +static inline int atomic64_add_unless(atomic64_t *v, long a, long u) +{ + long c, old; + c = atomic64_read(v); + for (;;) { + if (unlikely(c == (u))) + break; + old = atomic64_cmpxchg((v), c, c + (a)); + if (likely(old == c)) + break; + c = old; + } + return c != (u); +} + +#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) + +/* Atomic operations are already serializing */ +#ifdef CONFIG_SMP +#define smp_mb__before_atomic_dec() membar_storeload_loadload(); +#define smp_mb__after_atomic_dec() membar_storeload_storestore(); +#define smp_mb__before_atomic_inc() membar_storeload_loadload(); +#define smp_mb__after_atomic_inc() membar_storeload_storestore(); +#else +#define smp_mb__before_atomic_dec() barrier() +#define smp_mb__after_atomic_dec() barrier() +#define smp_mb__before_atomic_inc() barrier() +#define smp_mb__after_atomic_inc() barrier() +#endif + +#include +#endif /* !(__ARCH_SPARC64_ATOMIC__) */ diff --git a/include/asm-sparc/auxio.h b/include/asm-sparc/auxio.h index e552b8d68450..24c6f3c0f577 100644 --- a/include/asm-sparc/auxio.h +++ b/include/asm-sparc/auxio.h @@ -1,89 +1,8 @@ -/* - * auxio.h: Definitions and code for the Auxiliary I/O register. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ -#ifndef _SPARC_AUXIO_H -#define _SPARC_AUXIO_H - -#include -#include - -/* This register is an unsigned char in IO space. It does two things. - * First, it is used to control the front panel LED light on machines - * that have it (good for testing entry points to trap handlers and irq's) - * Secondly, it controls various floppy drive parameters. - */ -#define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ -#define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ -#define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ -#define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ -#define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ -#define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ -#define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ - -/* Set the following to one, then zero, after doing a pseudo DMA transfer. */ -#define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ - -/* Set the following to zero to eject the floppy. */ -#define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ -#define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ - -#ifndef __ASSEMBLY__ - -/* - * NOTE: these routines are implementation dependent-- - * understand the hardware you are querying! - */ -extern void set_auxio(unsigned char bits_on, unsigned char bits_off); -extern unsigned char get_auxio(void); /* .../asm-sparc/floppy.h */ - -/* - * The following routines are provided for driver-compatibility - * with sparc64 (primarily sunlance.c) - */ - -#define AUXIO_LTE_ON 1 -#define AUXIO_LTE_OFF 0 - -/* auxio_set_lte - Set Link Test Enable (TPE Link Detect) - * - * on - AUXIO_LTE_ON or AUXIO_LTE_OFF - */ -#define auxio_set_lte(on) \ -do { \ - if(on) { \ - set_auxio(AUXIO_LINK_TEST, 0); \ - } else { \ - set_auxio(0, AUXIO_LINK_TEST); \ - } \ -} while (0) - -#define AUXIO_LED_ON 1 -#define AUXIO_LED_OFF 0 - -/* auxio_set_led - Set system front panel LED - * - * on - AUXIO_LED_ON or AUXIO_LED_OFF - */ -#define auxio_set_led(on) \ -do { \ - if(on) { \ - set_auxio(AUXIO_LED, 0); \ - } else { \ - set_auxio(0, AUXIO_LED); \ - } \ -} while (0) - -#endif /* !(__ASSEMBLY__) */ - - -/* AUXIO2 (Power Off Control) */ -extern __volatile__ unsigned char * auxio_power_register; - -#define AUXIO_POWER_DETECT_FAILURE 32 -#define AUXIO_POWER_CLEAR_FAILURE 2 -#define AUXIO_POWER_OFF 1 - - -#endif /* !(_SPARC_AUXIO_H) */ +#ifndef ___ASM_SPARC_AUXIO_H +#define ___ASM_SPARC_AUXIO_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/auxio_32.h b/include/asm-sparc/auxio_32.h new file mode 100644 index 000000000000..4db8f23db20f --- /dev/null +++ b/include/asm-sparc/auxio_32.h @@ -0,0 +1,89 @@ +/* + * auxio.h: Definitions and code for the Auxiliary I/O register. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ +#ifndef _SPARC_AUXIO_H +#define _SPARC_AUXIO_H + +#include +#include + +/* This register is an unsigned char in IO space. It does two things. + * First, it is used to control the front panel LED light on machines + * that have it (good for testing entry points to trap handlers and irq's) + * Secondly, it controls various floppy drive parameters. + */ +#define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ +#define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ +#define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ +#define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ +#define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ +#define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ +#define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ + +/* Set the following to one, then zero, after doing a pseudo DMA transfer. */ +#define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ + +/* Set the following to zero to eject the floppy. */ +#define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ +#define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ + +#ifndef __ASSEMBLY__ + +/* + * NOTE: these routines are implementation dependent-- + * understand the hardware you are querying! + */ +extern void set_auxio(unsigned char bits_on, unsigned char bits_off); +extern unsigned char get_auxio(void); /* .../asm-sparc/floppy.h */ + +/* + * The following routines are provided for driver-compatibility + * with sparc64 (primarily sunlance.c) + */ + +#define AUXIO_LTE_ON 1 +#define AUXIO_LTE_OFF 0 + +/* auxio_set_lte - Set Link Test Enable (TPE Link Detect) + * + * on - AUXIO_LTE_ON or AUXIO_LTE_OFF + */ +#define auxio_set_lte(on) \ +do { \ + if(on) { \ + set_auxio(AUXIO_LINK_TEST, 0); \ + } else { \ + set_auxio(0, AUXIO_LINK_TEST); \ + } \ +} while (0) + +#define AUXIO_LED_ON 1 +#define AUXIO_LED_OFF 0 + +/* auxio_set_led - Set system front panel LED + * + * on - AUXIO_LED_ON or AUXIO_LED_OFF + */ +#define auxio_set_led(on) \ +do { \ + if(on) { \ + set_auxio(AUXIO_LED, 0); \ + } else { \ + set_auxio(0, AUXIO_LED); \ + } \ +} while (0) + +#endif /* !(__ASSEMBLY__) */ + + +/* AUXIO2 (Power Off Control) */ +extern __volatile__ unsigned char * auxio_power_register; + +#define AUXIO_POWER_DETECT_FAILURE 32 +#define AUXIO_POWER_CLEAR_FAILURE 2 +#define AUXIO_POWER_OFF 1 + + +#endif /* !(_SPARC_AUXIO_H) */ diff --git a/include/asm-sparc/auxio_64.h b/include/asm-sparc/auxio_64.h new file mode 100644 index 000000000000..f61cd1e3e395 --- /dev/null +++ b/include/asm-sparc/auxio_64.h @@ -0,0 +1,100 @@ +/* + * auxio.h: Definitions and code for the Auxiliary I/O registers. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * + * Refactoring for unified NCR/PCIO support 2002 Eric Brower (ebrower@usa.net) + */ +#ifndef _SPARC64_AUXIO_H +#define _SPARC64_AUXIO_H + +/* AUXIO implementations: + * sbus-based NCR89C105 "Slavio" + * LED/Floppy (AUX1) register + * Power (AUX2) register + * + * ebus-based auxio on PCIO + * LED Auxio Register + * Power Auxio Register + * + * Register definitions from NCR _NCR89C105 Chip Specification_ + * + * SLAVIO AUX1 @ 0x1900000 + * ------------------------------------------------- + * | (R) | (R) | D | (R) | E | M | T | L | + * ------------------------------------------------- + * (R) - bit 7:6,4 are reserved and should be masked in s/w + * D - Floppy Density Sense (1=high density) R/O + * E - Link Test Enable, directly reflected on AT&T 7213 LTE pin + * M - Monitor/Mouse Mux, directly reflected on MON_MSE_MUX pin + * T - Terminal Count: sends TC pulse to 82077 floppy controller + * L - System LED on front panel (0=off, 1=on) + */ +#define AUXIO_AUX1_MASK 0xc0 /* Mask bits */ +#define AUXIO_AUX1_FDENS 0x20 /* Floppy Density Sense */ +#define AUXIO_AUX1_LTE 0x08 /* Link Test Enable */ +#define AUXIO_AUX1_MMUX 0x04 /* Monitor/Mouse Mux */ +#define AUXIO_AUX1_FTCNT 0x02 /* Terminal Count, */ +#define AUXIO_AUX1_LED 0x01 /* System LED */ + +/* SLAVIO AUX2 @ 0x1910000 + * ------------------------------------------------- + * | (R) | (R) | D | (R) | (R) | (R) | C | F | + * ------------------------------------------------- + * (R) - bits 7:6,4:2 are reserved and should be masked in s/w + * D - Power Failure Detect (1=power fail) + * C - Clear Power Failure Detect Int (1=clear) + * F - Power Off (1=power off) + */ +#define AUXIO_AUX2_MASK 0xdc /* Mask Bits */ +#define AUXIO_AUX2_PFAILDET 0x20 /* Power Fail Detect */ +#define AUXIO_AUX2_PFAILCLR 0x02 /* Clear Pwr Fail Det Intr */ +#define AUXIO_AUX2_PWR_OFF 0x01 /* Power Off */ + +/* Register definitions from Sun Microsystems _PCIO_ p/n 802-7837 + * + * PCIO LED Auxio @ 0x726000 + * ------------------------------------------------- + * | 31:1 Unused | LED | + * ------------------------------------------------- + * Bits 31:1 unused + * LED - System LED on front panel (0=off, 1=on) + */ +#define AUXIO_PCIO_LED 0x01 /* System LED */ + +/* PCIO Power Auxio @ 0x724000 + * ------------------------------------------------- + * | 31:2 Unused | CPO | SPO | + * ------------------------------------------------- + * Bits 31:2 unused + * CPO - Courtesy Power Off (1=off) + * SPO - System Power Off (1=off) + */ +#define AUXIO_PCIO_CPWR_OFF 0x02 /* Courtesy Power Off */ +#define AUXIO_PCIO_SPWR_OFF 0x01 /* System Power Off */ + +#ifndef __ASSEMBLY__ + +extern void __iomem *auxio_register; + +#define AUXIO_LTE_ON 1 +#define AUXIO_LTE_OFF 0 + +/* auxio_set_lte - Set Link Test Enable (TPE Link Detect) + * + * on - AUXIO_LTE_ON or AUXIO_LTE_OFF + */ +extern void auxio_set_lte(int on); + +#define AUXIO_LED_ON 1 +#define AUXIO_LED_OFF 0 + +/* auxio_set_led - Set system front panel LED + * + * on - AUXIO_LED_ON or AUXIO_LED_OFF + */ +extern void auxio_set_led(int on); + +#endif /* ifndef __ASSEMBLY__ */ + +#endif /* !(_SPARC64_AUXIO_H) */ diff --git a/include/asm-sparc/bitops.h b/include/asm-sparc/bitops.h index 68b98a7e6454..1a2949d0193f 100644 --- a/include/asm-sparc/bitops.h +++ b/include/asm-sparc/bitops.h @@ -1,111 +1,8 @@ -/* - * bitops.h: Bit string operations on the Sparc. - * - * Copyright 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright 1996 Eddie C. Dost (ecd@skynet.be) - * Copyright 2001 Anton Blanchard (anton@samba.org) - */ - -#ifndef _SPARC_BITOPS_H -#define _SPARC_BITOPS_H - -#include -#include - -#ifdef __KERNEL__ - -#ifndef _LINUX_BITOPS_H -#error only can be included directly +#ifndef ___ASM_SPARC_BITOPS_H +#define ___ASM_SPARC_BITOPS_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -extern unsigned long ___set_bit(unsigned long *addr, unsigned long mask); -extern unsigned long ___clear_bit(unsigned long *addr, unsigned long mask); -extern unsigned long ___change_bit(unsigned long *addr, unsigned long mask); - -/* - * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0' - * is in the highest of the four bytes and bit '31' is the high bit - * within the first byte. Sparc is BIG-Endian. Unless noted otherwise - * all bit-ops return 0 if bit was previously clear and != 0 otherwise. - */ -static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr) -{ - unsigned long *ADDR, mask; - - ADDR = ((unsigned long *) addr) + (nr >> 5); - mask = 1 << (nr & 31); - - return ___set_bit(ADDR, mask) != 0; -} - -static inline void set_bit(unsigned long nr, volatile unsigned long *addr) -{ - unsigned long *ADDR, mask; - - ADDR = ((unsigned long *) addr) + (nr >> 5); - mask = 1 << (nr & 31); - - (void) ___set_bit(ADDR, mask); -} - -static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) -{ - unsigned long *ADDR, mask; - - ADDR = ((unsigned long *) addr) + (nr >> 5); - mask = 1 << (nr & 31); - - return ___clear_bit(ADDR, mask) != 0; -} - -static inline void clear_bit(unsigned long nr, volatile unsigned long *addr) -{ - unsigned long *ADDR, mask; - - ADDR = ((unsigned long *) addr) + (nr >> 5); - mask = 1 << (nr & 31); - - (void) ___clear_bit(ADDR, mask); -} - -static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr) -{ - unsigned long *ADDR, mask; - - ADDR = ((unsigned long *) addr) + (nr >> 5); - mask = 1 << (nr & 31); - - return ___change_bit(ADDR, mask) != 0; -} - -static inline void change_bit(unsigned long nr, volatile unsigned long *addr) -{ - unsigned long *ADDR, mask; - - ADDR = ((unsigned long *) addr) + (nr >> 5); - mask = 1 << (nr & 31); - - (void) ___change_bit(ADDR, mask); -} - -#include - -#define smp_mb__before_clear_bit() do { } while(0) -#define smp_mb__after_clear_bit() do { } while(0) - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#endif /* __KERNEL__ */ - -#endif /* defined(_SPARC_BITOPS_H) */ diff --git a/include/asm-sparc/bitops_32.h b/include/asm-sparc/bitops_32.h new file mode 100644 index 000000000000..68b98a7e6454 --- /dev/null +++ b/include/asm-sparc/bitops_32.h @@ -0,0 +1,111 @@ +/* + * bitops.h: Bit string operations on the Sparc. + * + * Copyright 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright 1996 Eddie C. Dost (ecd@skynet.be) + * Copyright 2001 Anton Blanchard (anton@samba.org) + */ + +#ifndef _SPARC_BITOPS_H +#define _SPARC_BITOPS_H + +#include +#include + +#ifdef __KERNEL__ + +#ifndef _LINUX_BITOPS_H +#error only can be included directly +#endif + +extern unsigned long ___set_bit(unsigned long *addr, unsigned long mask); +extern unsigned long ___clear_bit(unsigned long *addr, unsigned long mask); +extern unsigned long ___change_bit(unsigned long *addr, unsigned long mask); + +/* + * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0' + * is in the highest of the four bytes and bit '31' is the high bit + * within the first byte. Sparc is BIG-Endian. Unless noted otherwise + * all bit-ops return 0 if bit was previously clear and != 0 otherwise. + */ +static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr) +{ + unsigned long *ADDR, mask; + + ADDR = ((unsigned long *) addr) + (nr >> 5); + mask = 1 << (nr & 31); + + return ___set_bit(ADDR, mask) != 0; +} + +static inline void set_bit(unsigned long nr, volatile unsigned long *addr) +{ + unsigned long *ADDR, mask; + + ADDR = ((unsigned long *) addr) + (nr >> 5); + mask = 1 << (nr & 31); + + (void) ___set_bit(ADDR, mask); +} + +static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) +{ + unsigned long *ADDR, mask; + + ADDR = ((unsigned long *) addr) + (nr >> 5); + mask = 1 << (nr & 31); + + return ___clear_bit(ADDR, mask) != 0; +} + +static inline void clear_bit(unsigned long nr, volatile unsigned long *addr) +{ + unsigned long *ADDR, mask; + + ADDR = ((unsigned long *) addr) + (nr >> 5); + mask = 1 << (nr & 31); + + (void) ___clear_bit(ADDR, mask); +} + +static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr) +{ + unsigned long *ADDR, mask; + + ADDR = ((unsigned long *) addr) + (nr >> 5); + mask = 1 << (nr & 31); + + return ___change_bit(ADDR, mask) != 0; +} + +static inline void change_bit(unsigned long nr, volatile unsigned long *addr) +{ + unsigned long *ADDR, mask; + + ADDR = ((unsigned long *) addr) + (nr >> 5); + mask = 1 << (nr & 31); + + (void) ___change_bit(ADDR, mask); +} + +#include + +#define smp_mb__before_clear_bit() do { } while(0) +#define smp_mb__after_clear_bit() do { } while(0) + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#endif /* __KERNEL__ */ + +#endif /* defined(_SPARC_BITOPS_H) */ diff --git a/include/asm-sparc/bitops_64.h b/include/asm-sparc/bitops_64.h new file mode 100644 index 000000000000..bb87b8080220 --- /dev/null +++ b/include/asm-sparc/bitops_64.h @@ -0,0 +1,107 @@ +/* + * bitops.h: Bit string operations on the V9. + * + * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SPARC64_BITOPS_H +#define _SPARC64_BITOPS_H + +#ifndef _LINUX_BITOPS_H +#error only can be included directly +#endif + +#include +#include + +extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); +extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); +extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); +extern void set_bit(unsigned long nr, volatile unsigned long *addr); +extern void clear_bit(unsigned long nr, volatile unsigned long *addr); +extern void change_bit(unsigned long nr, volatile unsigned long *addr); + +#include + +#ifdef CONFIG_SMP +#define smp_mb__before_clear_bit() membar_storeload_loadload() +#define smp_mb__after_clear_bit() membar_storeload_storestore() +#else +#define smp_mb__before_clear_bit() barrier() +#define smp_mb__after_clear_bit() barrier() +#endif + +#include +#include +#include +#include +#include + +#ifdef __KERNEL__ + +#include +#include + +/* + * hweightN: returns the hamming weight (i.e. the number + * of bits set) of a N-bit word + */ + +#ifdef ULTRA_HAS_POPULATION_COUNT + +static inline unsigned int hweight64(unsigned long w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w)); + return res; +} + +static inline unsigned int hweight32(unsigned int w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffffffff)); + return res; +} + +static inline unsigned int hweight16(unsigned int w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffff)); + return res; +} + +static inline unsigned int hweight8(unsigned int w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xff)); + return res; +} + +#else + +#include + +#endif +#include +#endif /* __KERNEL__ */ + +#include + +#ifdef __KERNEL__ + +#include + +#define ext2_set_bit_atomic(lock,nr,addr) \ + test_and_set_bit((nr) ^ 0x38,(unsigned long *)(addr)) +#define ext2_clear_bit_atomic(lock,nr,addr) \ + test_and_clear_bit((nr) ^ 0x38,(unsigned long *)(addr)) + +#include + +#endif /* __KERNEL__ */ + +#endif /* defined(_SPARC64_BITOPS_H) */ diff --git a/include/asm-sparc/cacheflush.h b/include/asm-sparc/cacheflush.h index 68ac10910271..2b6a37957c2d 100644 --- a/include/asm-sparc/cacheflush.h +++ b/include/asm-sparc/cacheflush.h @@ -1,85 +1,8 @@ -#ifndef _SPARC_CACHEFLUSH_H -#define _SPARC_CACHEFLUSH_H - -#include /* Common for other includes */ -// #include from pgalloc.h -// #include from pgalloc.h - -// #include -#include - -/* - * Fine grained cache flushing. - */ -#ifdef CONFIG_SMP - -BTFIXUPDEF_CALL(void, local_flush_cache_all, void) -BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, local_flush_cache_page, struct vm_area_struct *, unsigned long) - -#define local_flush_cache_all() BTFIXUP_CALL(local_flush_cache_all)() -#define local_flush_cache_mm(mm) BTFIXUP_CALL(local_flush_cache_mm)(mm) -#define local_flush_cache_range(vma,start,end) BTFIXUP_CALL(local_flush_cache_range)(vma,start,end) -#define local_flush_cache_page(vma,addr) BTFIXUP_CALL(local_flush_cache_page)(vma,addr) - -BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long) -BTFIXUPDEF_CALL(void, local_flush_sig_insns, struct mm_struct *, unsigned long) - -#define local_flush_page_to_ram(addr) BTFIXUP_CALL(local_flush_page_to_ram)(addr) -#define local_flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(local_flush_sig_insns)(mm,insn_addr) - -extern void smp_flush_cache_all(void); -extern void smp_flush_cache_mm(struct mm_struct *mm); -extern void smp_flush_cache_range(struct vm_area_struct *vma, - unsigned long start, - unsigned long end); -extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page); - -extern void smp_flush_page_to_ram(unsigned long page); -extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr); - -#endif /* CONFIG_SMP */ - -BTFIXUPDEF_CALL(void, flush_cache_all, void) -BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long) - -#define flush_cache_all() BTFIXUP_CALL(flush_cache_all)() -#define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm) -#define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm) -#define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end) -#define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr) -#define flush_icache_range(start, end) do { } while (0) -#define flush_icache_page(vma, pg) do { } while (0) - -#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page));\ - memcpy(dst, src, len); \ - } while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page));\ - memcpy(dst, src, len); \ - } while (0) - -BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long) -BTFIXUPDEF_CALL(void, flush_sig_insns, struct mm_struct *, unsigned long) - -#define __flush_page_to_ram(addr) BTFIXUP_CALL(__flush_page_to_ram)(addr) -#define flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(flush_sig_insns)(mm,insn_addr) - -extern void sparc_flush_page_to_ram(struct page *page); - -#define flush_dcache_page(page) sparc_flush_page_to_ram(page) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) - -#define flush_cache_vmap(start, end) flush_cache_all() -#define flush_cache_vunmap(start, end) flush_cache_all() - -#endif /* _SPARC_CACHEFLUSH_H */ +#ifndef ___ASM_SPARC_CACHEFLUSH_H +#define ___ASM_SPARC_CACHEFLUSH_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/cacheflush_32.h b/include/asm-sparc/cacheflush_32.h new file mode 100644 index 000000000000..68ac10910271 --- /dev/null +++ b/include/asm-sparc/cacheflush_32.h @@ -0,0 +1,85 @@ +#ifndef _SPARC_CACHEFLUSH_H +#define _SPARC_CACHEFLUSH_H + +#include /* Common for other includes */ +// #include from pgalloc.h +// #include from pgalloc.h + +// #include +#include + +/* + * Fine grained cache flushing. + */ +#ifdef CONFIG_SMP + +BTFIXUPDEF_CALL(void, local_flush_cache_all, void) +BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *) +BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long) +BTFIXUPDEF_CALL(void, local_flush_cache_page, struct vm_area_struct *, unsigned long) + +#define local_flush_cache_all() BTFIXUP_CALL(local_flush_cache_all)() +#define local_flush_cache_mm(mm) BTFIXUP_CALL(local_flush_cache_mm)(mm) +#define local_flush_cache_range(vma,start,end) BTFIXUP_CALL(local_flush_cache_range)(vma,start,end) +#define local_flush_cache_page(vma,addr) BTFIXUP_CALL(local_flush_cache_page)(vma,addr) + +BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long) +BTFIXUPDEF_CALL(void, local_flush_sig_insns, struct mm_struct *, unsigned long) + +#define local_flush_page_to_ram(addr) BTFIXUP_CALL(local_flush_page_to_ram)(addr) +#define local_flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(local_flush_sig_insns)(mm,insn_addr) + +extern void smp_flush_cache_all(void); +extern void smp_flush_cache_mm(struct mm_struct *mm); +extern void smp_flush_cache_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end); +extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page); + +extern void smp_flush_page_to_ram(unsigned long page); +extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr); + +#endif /* CONFIG_SMP */ + +BTFIXUPDEF_CALL(void, flush_cache_all, void) +BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *) +BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long) +BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long) + +#define flush_cache_all() BTFIXUP_CALL(flush_cache_all)() +#define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm) +#define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm) +#define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end) +#define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr) +#define flush_icache_range(start, end) do { } while (0) +#define flush_icache_page(vma, pg) do { } while (0) + +#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page));\ + memcpy(dst, src, len); \ + } while (0) +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page));\ + memcpy(dst, src, len); \ + } while (0) + +BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long) +BTFIXUPDEF_CALL(void, flush_sig_insns, struct mm_struct *, unsigned long) + +#define __flush_page_to_ram(addr) BTFIXUP_CALL(__flush_page_to_ram)(addr) +#define flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(flush_sig_insns)(mm,insn_addr) + +extern void sparc_flush_page_to_ram(struct page *page); + +#define flush_dcache_page(page) sparc_flush_page_to_ram(page) +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) + +#define flush_cache_vmap(start, end) flush_cache_all() +#define flush_cache_vunmap(start, end) flush_cache_all() + +#endif /* _SPARC_CACHEFLUSH_H */ diff --git a/include/asm-sparc/cacheflush_64.h b/include/asm-sparc/cacheflush_64.h new file mode 100644 index 000000000000..c43321729b3b --- /dev/null +++ b/include/asm-sparc/cacheflush_64.h @@ -0,0 +1,76 @@ +#ifndef _SPARC64_CACHEFLUSH_H +#define _SPARC64_CACHEFLUSH_H + +#include + +#ifndef __ASSEMBLY__ + +#include + +/* Cache flush operations. */ + +/* These are the same regardless of whether this is an SMP kernel or not. */ +#define flush_cache_mm(__mm) \ + do { if ((__mm) == current->mm) flushw_user(); } while(0) +#define flush_cache_dup_mm(mm) flush_cache_mm(mm) +#define flush_cache_range(vma, start, end) \ + flush_cache_mm((vma)->vm_mm) +#define flush_cache_page(vma, page, pfn) \ + flush_cache_mm((vma)->vm_mm) + +/* + * On spitfire, the icache doesn't snoop local stores and we don't + * use block commit stores (which invalidate icache lines) during + * module load, so we need this. + */ +extern void flush_icache_range(unsigned long start, unsigned long end); +extern void __flush_icache_page(unsigned long); + +extern void __flush_dcache_page(void *addr, int flush_icache); +extern void flush_dcache_page_impl(struct page *page); +#ifdef CONFIG_SMP +extern void smp_flush_dcache_page_impl(struct page *page, int cpu); +extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page); +#else +#define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page) +#define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page) +#endif + +extern void __flush_dcache_range(unsigned long start, unsigned long end); +extern void flush_dcache_page(struct page *page); + +#define flush_icache_page(vma, pg) do { } while(0) +#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) + +extern void flush_ptrace_access(struct vm_area_struct *, struct page *, + unsigned long uaddr, void *kaddr, + unsigned long len, int write); + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page)); \ + memcpy(dst, src, len); \ + flush_ptrace_access(vma, page, vaddr, src, len, 0); \ + } while (0) + +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page)); \ + memcpy(dst, src, len); \ + flush_ptrace_access(vma, page, vaddr, dst, len, 1); \ + } while (0) + +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) + +#define flush_cache_vmap(start, end) do { } while (0) +#define flush_cache_vunmap(start, end) do { } while (0) + +#ifdef CONFIG_DEBUG_PAGEALLOC +/* internal debugging function */ +void kernel_map_pages(struct page *page, int numpages, int enable); +#endif + +#endif /* !__ASSEMBLY__ */ + +#endif /* _SPARC64_CACHEFLUSH_H */ diff --git a/include/asm-sparc/checksum.h b/include/asm-sparc/checksum.h index d044ddb5a3cf..4e3553d4f6e1 100644 --- a/include/asm-sparc/checksum.h +++ b/include/asm-sparc/checksum.h @@ -1,241 +1,8 @@ -#ifndef __SPARC_CHECKSUM_H -#define __SPARC_CHECKSUM_H - -/* checksum.h: IP/UDP/TCP checksum routines on the Sparc. - * - * Copyright(C) 1995 Linus Torvalds - * Copyright(C) 1995 Miguel de Icaza - * Copyright(C) 1996 David S. Miller - * Copyright(C) 1996 Eddie C. Dost - * Copyright(C) 1997 Jakub Jelinek - * - * derived from: - * Alpha checksum c-code - * ix86 inline assembly - * RFC1071 Computing the Internet Checksum - */ - -#include -#include - -/* computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -extern __wsum csum_partial(const void *buff, int len, __wsum sum); - -/* the same as csum_partial, but copies from fs:src while it - * checksums - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ - -extern unsigned int __csum_partial_copy_sparc_generic (const unsigned char *, unsigned char *); - -static inline __wsum -csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) -{ - register unsigned int ret asm("o0") = (unsigned int)src; - register char *d asm("o1") = dst; - register int l asm("g1") = len; - - __asm__ __volatile__ ( - "call __csum_partial_copy_sparc_generic\n\t" - " mov %6, %%g7\n" - : "=&r" (ret), "=&r" (d), "=&r" (l) - : "0" (ret), "1" (d), "2" (l), "r" (sum) - : "o2", "o3", "o4", "o5", "o7", - "g2", "g3", "g4", "g5", "g7", - "memory", "cc"); - return (__force __wsum)ret; -} - -static inline __wsum -csum_partial_copy_from_user(const void __user *src, void *dst, int len, - __wsum sum, int *err) - { - register unsigned long ret asm("o0") = (unsigned long)src; - register char *d asm("o1") = dst; - register int l asm("g1") = len; - register __wsum s asm("g7") = sum; - - __asm__ __volatile__ ( - ".section __ex_table,#alloc\n\t" - ".align 4\n\t" - ".word 1f,2\n\t" - ".previous\n" - "1:\n\t" - "call __csum_partial_copy_sparc_generic\n\t" - " st %8, [%%sp + 64]\n" - : "=&r" (ret), "=&r" (d), "=&r" (l), "=&r" (s) - : "0" (ret), "1" (d), "2" (l), "3" (s), "r" (err) - : "o2", "o3", "o4", "o5", "o7", "g2", "g3", "g4", "g5", - "cc", "memory"); - return (__force __wsum)ret; -} - -static inline __wsum -csum_partial_copy_to_user(const void *src, void __user *dst, int len, - __wsum sum, int *err) -{ - if (!access_ok (VERIFY_WRITE, dst, len)) { - *err = -EFAULT; - return sum; - } else { - register unsigned long ret asm("o0") = (unsigned long)src; - register char __user *d asm("o1") = dst; - register int l asm("g1") = len; - register __wsum s asm("g7") = sum; - - __asm__ __volatile__ ( - ".section __ex_table,#alloc\n\t" - ".align 4\n\t" - ".word 1f,1\n\t" - ".previous\n" - "1:\n\t" - "call __csum_partial_copy_sparc_generic\n\t" - " st %8, [%%sp + 64]\n" - : "=&r" (ret), "=&r" (d), "=&r" (l), "=&r" (s) - : "0" (ret), "1" (d), "2" (l), "3" (s), "r" (err) - : "o2", "o3", "o4", "o5", "o7", - "g2", "g3", "g4", "g5", - "cc", "memory"); - return (__force __wsum)ret; - } -} - -#define HAVE_CSUM_COPY_USER -#define csum_and_copy_to_user csum_partial_copy_to_user - -/* ihl is always 5 or greater, almost always is 5, and iph is word aligned - * the majority of the time. - */ -static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl) -{ - __sum16 sum; - - /* Note: We must read %2 before we touch %0 for the first time, - * because GCC can legitimately use the same register for - * both operands. - */ - __asm__ __volatile__("sub\t%2, 4, %%g4\n\t" - "ld\t[%1 + 0x00], %0\n\t" - "ld\t[%1 + 0x04], %%g2\n\t" - "ld\t[%1 + 0x08], %%g3\n\t" - "addcc\t%%g2, %0, %0\n\t" - "addxcc\t%%g3, %0, %0\n\t" - "ld\t[%1 + 0x0c], %%g2\n\t" - "ld\t[%1 + 0x10], %%g3\n\t" - "addxcc\t%%g2, %0, %0\n\t" - "addx\t%0, %%g0, %0\n" - "1:\taddcc\t%%g3, %0, %0\n\t" - "add\t%1, 4, %1\n\t" - "addxcc\t%0, %%g0, %0\n\t" - "subcc\t%%g4, 1, %%g4\n\t" - "be,a\t2f\n\t" - "sll\t%0, 16, %%g2\n\t" - "b\t1b\n\t" - "ld\t[%1 + 0x10], %%g3\n" - "2:\taddcc\t%0, %%g2, %%g2\n\t" - "srl\t%%g2, 16, %0\n\t" - "addx\t%0, %%g0, %0\n\t" - "xnor\t%%g0, %0, %0" - : "=r" (sum), "=&r" (iph) - : "r" (ihl), "1" (iph) - : "g2", "g3", "g4", "cc", "memory"); - return sum; -} - -/* Fold a partial checksum without adding pseudo headers. */ -static inline __sum16 csum_fold(__wsum sum) -{ - unsigned int tmp; - - __asm__ __volatile__("addcc\t%0, %1, %1\n\t" - "srl\t%1, 16, %1\n\t" - "addx\t%1, %%g0, %1\n\t" - "xnor\t%%g0, %1, %0" - : "=&r" (sum), "=r" (tmp) - : "0" (sum), "1" ((__force u32)sum<<16) - : "cc"); - return (__force __sum16)sum; -} - -static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - __asm__ __volatile__("addcc\t%1, %0, %0\n\t" - "addxcc\t%2, %0, %0\n\t" - "addxcc\t%3, %0, %0\n\t" - "addx\t%0, %%g0, %0\n\t" - : "=r" (sum), "=r" (saddr) - : "r" (daddr), "r" (proto + len), "0" (sum), - "1" (saddr) - : "cc"); - return sum; -} - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); -} - -#define _HAVE_ARCH_IPV6_CSUM - -static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr, - const struct in6_addr *daddr, - __u32 len, unsigned short proto, - __wsum sum) -{ - __asm__ __volatile__ ( - "addcc %3, %4, %%g4\n\t" - "addxcc %5, %%g4, %%g4\n\t" - "ld [%2 + 0x0c], %%g2\n\t" - "ld [%2 + 0x08], %%g3\n\t" - "addxcc %%g2, %%g4, %%g4\n\t" - "ld [%2 + 0x04], %%g2\n\t" - "addxcc %%g3, %%g4, %%g4\n\t" - "ld [%2 + 0x00], %%g3\n\t" - "addxcc %%g2, %%g4, %%g4\n\t" - "ld [%1 + 0x0c], %%g2\n\t" - "addxcc %%g3, %%g4, %%g4\n\t" - "ld [%1 + 0x08], %%g3\n\t" - "addxcc %%g2, %%g4, %%g4\n\t" - "ld [%1 + 0x04], %%g2\n\t" - "addxcc %%g3, %%g4, %%g4\n\t" - "ld [%1 + 0x00], %%g3\n\t" - "addxcc %%g2, %%g4, %%g4\n\t" - "addxcc %%g3, %%g4, %0\n\t" - "addx 0, %0, %0\n" - : "=&r" (sum) - : "r" (saddr), "r" (daddr), - "r"(htonl(len)), "r"(htonl(proto)), "r"(sum) - : "g2", "g3", "g4", "cc"); - - return csum_fold(sum); -} - -/* this routine is used for miscellaneous IP-like checksums, mainly in icmp.c */ -static inline __sum16 ip_compute_csum(const void *buff, int len) -{ - return csum_fold(csum_partial(buff, len, 0)); -} - -#endif /* !(__SPARC_CHECKSUM_H) */ +#ifndef ___ASM_SPARC_CHECKSUM_H +#define ___ASM_SPARC_CHECKSUM_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/checksum_32.h b/include/asm-sparc/checksum_32.h new file mode 100644 index 000000000000..bdbda1453aa9 --- /dev/null +++ b/include/asm-sparc/checksum_32.h @@ -0,0 +1,241 @@ +#ifndef __SPARC_CHECKSUM_H +#define __SPARC_CHECKSUM_H + +/* checksum.h: IP/UDP/TCP checksum routines on the Sparc. + * + * Copyright(C) 1995 Linus Torvalds + * Copyright(C) 1995 Miguel de Icaza + * Copyright(C) 1996 David S. Miller + * Copyright(C) 1996 Eddie C. Dost + * Copyright(C) 1997 Jakub Jelinek + * + * derived from: + * Alpha checksum c-code + * ix86 inline assembly + * RFC1071 Computing the Internet Checksum + */ + +#include +#include + +/* computes the checksum of a memory block at buff, length len, + * and adds in "sum" (32-bit) + * + * returns a 32-bit number suitable for feeding into itself + * or csum_tcpudp_magic + * + * this function must be called with even lengths, except + * for the last fragment, which may be odd + * + * it's best to have buff aligned on a 32-bit boundary + */ +extern __wsum csum_partial(const void *buff, int len, __wsum sum); + +/* the same as csum_partial, but copies from fs:src while it + * checksums + * + * here even more important to align src and dst on a 32-bit (or even + * better 64-bit) boundary + */ + +extern unsigned int __csum_partial_copy_sparc_generic (const unsigned char *, unsigned char *); + +static inline __wsum +csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) +{ + register unsigned int ret asm("o0") = (unsigned int)src; + register char *d asm("o1") = dst; + register int l asm("g1") = len; + + __asm__ __volatile__ ( + "call __csum_partial_copy_sparc_generic\n\t" + " mov %6, %%g7\n" + : "=&r" (ret), "=&r" (d), "=&r" (l) + : "0" (ret), "1" (d), "2" (l), "r" (sum) + : "o2", "o3", "o4", "o5", "o7", + "g2", "g3", "g4", "g5", "g7", + "memory", "cc"); + return (__force __wsum)ret; +} + +static inline __wsum +csum_partial_copy_from_user(const void __user *src, void *dst, int len, + __wsum sum, int *err) + { + register unsigned long ret asm("o0") = (unsigned long)src; + register char *d asm("o1") = dst; + register int l asm("g1") = len; + register __wsum s asm("g7") = sum; + + __asm__ __volatile__ ( + ".section __ex_table,#alloc\n\t" + ".align 4\n\t" + ".word 1f,2\n\t" + ".previous\n" + "1:\n\t" + "call __csum_partial_copy_sparc_generic\n\t" + " st %8, [%%sp + 64]\n" + : "=&r" (ret), "=&r" (d), "=&r" (l), "=&r" (s) + : "0" (ret), "1" (d), "2" (l), "3" (s), "r" (err) + : "o2", "o3", "o4", "o5", "o7", "g2", "g3", "g4", "g5", + "cc", "memory"); + return (__force __wsum)ret; +} + +static inline __wsum +csum_partial_copy_to_user(const void *src, void __user *dst, int len, + __wsum sum, int *err) +{ + if (!access_ok (VERIFY_WRITE, dst, len)) { + *err = -EFAULT; + return sum; + } else { + register unsigned long ret asm("o0") = (unsigned long)src; + register char __user *d asm("o1") = dst; + register int l asm("g1") = len; + register __wsum s asm("g7") = sum; + + __asm__ __volatile__ ( + ".section __ex_table,#alloc\n\t" + ".align 4\n\t" + ".word 1f,1\n\t" + ".previous\n" + "1:\n\t" + "call __csum_partial_copy_sparc_generic\n\t" + " st %8, [%%sp + 64]\n" + : "=&r" (ret), "=&r" (d), "=&r" (l), "=&r" (s) + : "0" (ret), "1" (d), "2" (l), "3" (s), "r" (err) + : "o2", "o3", "o4", "o5", "o7", + "g2", "g3", "g4", "g5", + "cc", "memory"); + return (__force __wsum)ret; + } +} + +#define HAVE_CSUM_COPY_USER +#define csum_and_copy_to_user csum_partial_copy_to_user + +/* ihl is always 5 or greater, almost always is 5, and iph is word aligned + * the majority of the time. + */ +static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl) +{ + __sum16 sum; + + /* Note: We must read %2 before we touch %0 for the first time, + * because GCC can legitimately use the same register for + * both operands. + */ + __asm__ __volatile__("sub\t%2, 4, %%g4\n\t" + "ld\t[%1 + 0x00], %0\n\t" + "ld\t[%1 + 0x04], %%g2\n\t" + "ld\t[%1 + 0x08], %%g3\n\t" + "addcc\t%%g2, %0, %0\n\t" + "addxcc\t%%g3, %0, %0\n\t" + "ld\t[%1 + 0x0c], %%g2\n\t" + "ld\t[%1 + 0x10], %%g3\n\t" + "addxcc\t%%g2, %0, %0\n\t" + "addx\t%0, %%g0, %0\n" + "1:\taddcc\t%%g3, %0, %0\n\t" + "add\t%1, 4, %1\n\t" + "addxcc\t%0, %%g0, %0\n\t" + "subcc\t%%g4, 1, %%g4\n\t" + "be,a\t2f\n\t" + "sll\t%0, 16, %%g2\n\t" + "b\t1b\n\t" + "ld\t[%1 + 0x10], %%g3\n" + "2:\taddcc\t%0, %%g2, %%g2\n\t" + "srl\t%%g2, 16, %0\n\t" + "addx\t%0, %%g0, %0\n\t" + "xnor\t%%g0, %0, %0" + : "=r" (sum), "=&r" (iph) + : "r" (ihl), "1" (iph) + : "g2", "g3", "g4", "cc", "memory"); + return sum; +} + +/* Fold a partial checksum without adding pseudo headers. */ +static inline __sum16 csum_fold(__wsum sum) +{ + unsigned int tmp; + + __asm__ __volatile__("addcc\t%0, %1, %1\n\t" + "srl\t%1, 16, %1\n\t" + "addx\t%1, %%g0, %1\n\t" + "xnor\t%%g0, %1, %0" + : "=&r" (sum), "=r" (tmp) + : "0" (sum), "1" ((__force u32)sum<<16) + : "cc"); + return (__force __sum16)sum; +} + +static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, + unsigned short len, + unsigned short proto, + __wsum sum) +{ + __asm__ __volatile__("addcc\t%1, %0, %0\n\t" + "addxcc\t%2, %0, %0\n\t" + "addxcc\t%3, %0, %0\n\t" + "addx\t%0, %%g0, %0\n\t" + : "=r" (sum), "=r" (saddr) + : "r" (daddr), "r" (proto + len), "0" (sum), + "1" (saddr) + : "cc"); + return sum; +} + +/* + * computes the checksum of the TCP/UDP pseudo-header + * returns a 16-bit checksum, already complemented + */ +static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, + unsigned short len, + unsigned short proto, + __wsum sum) +{ + return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); +} + +#define _HAVE_ARCH_IPV6_CSUM + +static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr, + const struct in6_addr *daddr, + __u32 len, unsigned short proto, + __wsum sum) +{ + __asm__ __volatile__ ( + "addcc %3, %4, %%g4\n\t" + "addxcc %5, %%g4, %%g4\n\t" + "ld [%2 + 0x0c], %%g2\n\t" + "ld [%2 + 0x08], %%g3\n\t" + "addxcc %%g2, %%g4, %%g4\n\t" + "ld [%2 + 0x04], %%g2\n\t" + "addxcc %%g3, %%g4, %%g4\n\t" + "ld [%2 + 0x00], %%g3\n\t" + "addxcc %%g2, %%g4, %%g4\n\t" + "ld [%1 + 0x0c], %%g2\n\t" + "addxcc %%g3, %%g4, %%g4\n\t" + "ld [%1 + 0x08], %%g3\n\t" + "addxcc %%g2, %%g4, %%g4\n\t" + "ld [%1 + 0x04], %%g2\n\t" + "addxcc %%g3, %%g4, %%g4\n\t" + "ld [%1 + 0x00], %%g3\n\t" + "addxcc %%g2, %%g4, %%g4\n\t" + "addxcc %%g3, %%g4, %0\n\t" + "addx 0, %0, %0\n" + : "=&r" (sum) + : "r" (saddr), "r" (daddr), + "r"(htonl(len)), "r"(htonl(proto)), "r"(sum) + : "g2", "g3", "g4", "cc"); + + return csum_fold(sum); +} + +/* this routine is used for miscellaneous IP-like checksums, mainly in icmp.c */ +static inline __sum16 ip_compute_csum(const void *buff, int len) +{ + return csum_fold(csum_partial(buff, len, 0)); +} + +#endif /* !(__SPARC_CHECKSUM_H) */ diff --git a/include/asm-sparc/checksum_64.h b/include/asm-sparc/checksum_64.h new file mode 100644 index 000000000000..019b9615e43c --- /dev/null +++ b/include/asm-sparc/checksum_64.h @@ -0,0 +1,167 @@ +#ifndef __SPARC64_CHECKSUM_H +#define __SPARC64_CHECKSUM_H + +/* checksum.h: IP/UDP/TCP checksum routines on the V9. + * + * Copyright(C) 1995 Linus Torvalds + * Copyright(C) 1995 Miguel de Icaza + * Copyright(C) 1996 David S. Miller + * Copyright(C) 1996 Eddie C. Dost + * Copyright(C) 1997 Jakub Jelinek + * + * derived from: + * Alpha checksum c-code + * ix86 inline assembly + * RFC1071 Computing the Internet Checksum + */ + +#include +#include + +/* computes the checksum of a memory block at buff, length len, + * and adds in "sum" (32-bit) + * + * returns a 32-bit number suitable for feeding into itself + * or csum_tcpudp_magic + * + * this function must be called with even lengths, except + * for the last fragment, which may be odd + * + * it's best to have buff aligned on a 32-bit boundary + */ +extern __wsum csum_partial(const void * buff, int len, __wsum sum); + +/* the same as csum_partial, but copies from user space while it + * checksums + * + * here even more important to align src and dst on a 32-bit (or even + * better 64-bit) boundary + */ +extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, + int len, __wsum sum); + +extern long __csum_partial_copy_from_user(const void __user *src, + void *dst, int len, + __wsum sum); + +static inline __wsum +csum_partial_copy_from_user(const void __user *src, + void *dst, int len, + __wsum sum, int *err) +{ + long ret = __csum_partial_copy_from_user(src, dst, len, sum); + if (ret < 0) + *err = -EFAULT; + return (__force __wsum) ret; +} + +/* + * Copy and checksum to user + */ +#define HAVE_CSUM_COPY_USER +extern long __csum_partial_copy_to_user(const void *src, + void __user *dst, int len, + __wsum sum); + +static inline __wsum +csum_and_copy_to_user(const void *src, + void __user *dst, int len, + __wsum sum, int *err) +{ + long ret = __csum_partial_copy_to_user(src, dst, len, sum); + if (ret < 0) + *err = -EFAULT; + return (__force __wsum) ret; +} + +/* ihl is always 5 or greater, almost always is 5, and iph is word aligned + * the majority of the time. + */ +extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); + +/* Fold a partial checksum without adding pseudo headers. */ +static inline __sum16 csum_fold(__wsum sum) +{ + unsigned int tmp; + + __asm__ __volatile__( +" addcc %0, %1, %1\n" +" srl %1, 16, %1\n" +" addc %1, %%g0, %1\n" +" xnor %%g0, %1, %0\n" + : "=&r" (sum), "=r" (tmp) + : "0" (sum), "1" ((__force u32)sum<<16) + : "cc"); + return (__force __sum16)sum; +} + +static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, + unsigned int len, + unsigned short proto, + __wsum sum) +{ + __asm__ __volatile__( +" addcc %1, %0, %0\n" +" addccc %2, %0, %0\n" +" addccc %3, %0, %0\n" +" addc %0, %%g0, %0\n" + : "=r" (sum), "=r" (saddr) + : "r" (daddr), "r" (proto + len), "0" (sum), "1" (saddr) + : "cc"); + return sum; +} + +/* + * computes the checksum of the TCP/UDP pseudo-header + * returns a 16-bit checksum, already complemented + */ +static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, + unsigned short len, + unsigned short proto, + __wsum sum) +{ + return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); +} + +#define _HAVE_ARCH_IPV6_CSUM + +static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr, + const struct in6_addr *daddr, + __u32 len, unsigned short proto, + __wsum sum) +{ + __asm__ __volatile__ ( +" addcc %3, %4, %%g7\n" +" addccc %5, %%g7, %%g7\n" +" lduw [%2 + 0x0c], %%g2\n" +" lduw [%2 + 0x08], %%g3\n" +" addccc %%g2, %%g7, %%g7\n" +" lduw [%2 + 0x04], %%g2\n" +" addccc %%g3, %%g7, %%g7\n" +" lduw [%2 + 0x00], %%g3\n" +" addccc %%g2, %%g7, %%g7\n" +" lduw [%1 + 0x0c], %%g2\n" +" addccc %%g3, %%g7, %%g7\n" +" lduw [%1 + 0x08], %%g3\n" +" addccc %%g2, %%g7, %%g7\n" +" lduw [%1 + 0x04], %%g2\n" +" addccc %%g3, %%g7, %%g7\n" +" lduw [%1 + 0x00], %%g3\n" +" addccc %%g2, %%g7, %%g7\n" +" addccc %%g3, %%g7, %0\n" +" addc 0, %0, %0\n" + : "=&r" (sum) + : "r" (saddr), "r" (daddr), "r"(htonl(len)), + "r"(htonl(proto)), "r"(sum) + : "g2", "g3", "g7", "cc"); + + return csum_fold(sum); +} + +/* this routine is used for miscellaneous IP-like checksums, mainly in icmp.c */ +static inline __sum16 ip_compute_csum(const void *buff, int len) +{ + return csum_fold(csum_partial(buff, len, 0)); +} + +#endif /* !(__SPARC64_CHECKSUM_H) */ diff --git a/include/asm-sparc/cpudata.h b/include/asm-sparc/cpudata.h index a2c4d51d36c4..b76fac0c8d8f 100644 --- a/include/asm-sparc/cpudata.h +++ b/include/asm-sparc/cpudata.h @@ -1,27 +1,8 @@ -/* cpudata.h: Per-cpu parameters. - * - * Copyright (C) 2004 Keith M Wesolowski (wesolows@foobazco.org) - * - * Based on include/asm-sparc64/cpudata.h and Linux 2.4 smp.h - * both (C) David S. Miller. - */ - -#ifndef _SPARC_CPUDATA_H -#define _SPARC_CPUDATA_H - -#include - -typedef struct { - unsigned long udelay_val; - unsigned long clock_tick; - unsigned int multiplier; - unsigned int counter; - int prom_node; - int mid; - int next; -} cpuinfo_sparc; - -DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data); -#define cpu_data(__cpu) per_cpu(__cpu_data, (__cpu)) - -#endif /* _SPARC_CPUDATA_H */ +#ifndef ___ASM_SPARC_CPUDATA_H +#define ___ASM_SPARC_CPUDATA_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/cpudata_32.h b/include/asm-sparc/cpudata_32.h new file mode 100644 index 000000000000..a2c4d51d36c4 --- /dev/null +++ b/include/asm-sparc/cpudata_32.h @@ -0,0 +1,27 @@ +/* cpudata.h: Per-cpu parameters. + * + * Copyright (C) 2004 Keith M Wesolowski (wesolows@foobazco.org) + * + * Based on include/asm-sparc64/cpudata.h and Linux 2.4 smp.h + * both (C) David S. Miller. + */ + +#ifndef _SPARC_CPUDATA_H +#define _SPARC_CPUDATA_H + +#include + +typedef struct { + unsigned long udelay_val; + unsigned long clock_tick; + unsigned int multiplier; + unsigned int counter; + int prom_node; + int mid; + int next; +} cpuinfo_sparc; + +DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data); +#define cpu_data(__cpu) per_cpu(__cpu_data, (__cpu)) + +#endif /* _SPARC_CPUDATA_H */ diff --git a/include/asm-sparc/cpudata_64.h b/include/asm-sparc/cpudata_64.h new file mode 100644 index 000000000000..532975ecfe10 --- /dev/null +++ b/include/asm-sparc/cpudata_64.h @@ -0,0 +1,240 @@ +/* cpudata.h: Per-cpu parameters. + * + * Copyright (C) 2003, 2005, 2006 David S. Miller (davem@davemloft.net) + */ + +#ifndef _SPARC64_CPUDATA_H +#define _SPARC64_CPUDATA_H + +#include +#include + +#ifndef __ASSEMBLY__ + +#include +#include + +typedef struct { + /* Dcache line 1 */ + unsigned int __softirq_pending; /* must be 1st, see rtrap.S */ + unsigned int __pad0; + unsigned long clock_tick; /* %tick's per second */ + unsigned long __pad; + unsigned int __pad1; + unsigned int __pad2; + + /* Dcache line 2, rarely used */ + unsigned int dcache_size; + unsigned int dcache_line_size; + unsigned int icache_size; + unsigned int icache_line_size; + unsigned int ecache_size; + unsigned int ecache_line_size; + int core_id; + int proc_id; +} cpuinfo_sparc; + +DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data); +#define cpu_data(__cpu) per_cpu(__cpu_data, (__cpu)) +#define local_cpu_data() __get_cpu_var(__cpu_data) + +/* Trap handling code needs to get at a few critical values upon + * trap entry and to process TSB misses. These cannot be in the + * per_cpu() area as we really need to lock them into the TLB and + * thus make them part of the main kernel image. As a result we + * try to make this as small as possible. + * + * This is padded out and aligned to 64-bytes to avoid false sharing + * on SMP. + */ + +/* If you modify the size of this structure, please update + * TRAP_BLOCK_SZ_SHIFT below. + */ +struct thread_info; +struct trap_per_cpu { +/* D-cache line 1: Basic thread information, cpu and device mondo queues */ + struct thread_info *thread; + unsigned long pgd_paddr; + unsigned long cpu_mondo_pa; + unsigned long dev_mondo_pa; + +/* D-cache line 2: Error Mondo Queue and kernel buffer pointers */ + unsigned long resum_mondo_pa; + unsigned long resum_kernel_buf_pa; + unsigned long nonresum_mondo_pa; + unsigned long nonresum_kernel_buf_pa; + +/* Dcache lines 3, 4, 5, and 6: Hypervisor Fault Status */ + struct hv_fault_status fault_info; + +/* Dcache line 7: Physical addresses of CPU send mondo block and CPU list. */ + unsigned long cpu_mondo_block_pa; + unsigned long cpu_list_pa; + unsigned long tsb_huge; + unsigned long tsb_huge_temp; + +/* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size. */ + unsigned long irq_worklist_pa; + unsigned int cpu_mondo_qmask; + unsigned int dev_mondo_qmask; + unsigned int resum_qmask; + unsigned int nonresum_qmask; + void *hdesc; +} __attribute__((aligned(64))); +extern struct trap_per_cpu trap_block[NR_CPUS]; +extern void init_cur_cpu_trap(struct thread_info *); +extern void setup_tba(void); +extern int ncpus_probed; +extern void __init cpu_probe(void); +extern const struct seq_operations cpuinfo_op; + +extern unsigned long real_hard_smp_processor_id(void); + +struct cpuid_patch_entry { + unsigned int addr; + unsigned int cheetah_safari[4]; + unsigned int cheetah_jbus[4]; + unsigned int starfire[4]; + unsigned int sun4v[4]; +}; +extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end; + +struct sun4v_1insn_patch_entry { + unsigned int addr; + unsigned int insn; +}; +extern struct sun4v_1insn_patch_entry __sun4v_1insn_patch, + __sun4v_1insn_patch_end; + +struct sun4v_2insn_patch_entry { + unsigned int addr; + unsigned int insns[2]; +}; +extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch, + __sun4v_2insn_patch_end; + +#endif /* !(__ASSEMBLY__) */ + +#define TRAP_PER_CPU_THREAD 0x00 +#define TRAP_PER_CPU_PGD_PADDR 0x08 +#define TRAP_PER_CPU_CPU_MONDO_PA 0x10 +#define TRAP_PER_CPU_DEV_MONDO_PA 0x18 +#define TRAP_PER_CPU_RESUM_MONDO_PA 0x20 +#define TRAP_PER_CPU_RESUM_KBUF_PA 0x28 +#define TRAP_PER_CPU_NONRESUM_MONDO_PA 0x30 +#define TRAP_PER_CPU_NONRESUM_KBUF_PA 0x38 +#define TRAP_PER_CPU_FAULT_INFO 0x40 +#define TRAP_PER_CPU_CPU_MONDO_BLOCK_PA 0xc0 +#define TRAP_PER_CPU_CPU_LIST_PA 0xc8 +#define TRAP_PER_CPU_TSB_HUGE 0xd0 +#define TRAP_PER_CPU_TSB_HUGE_TEMP 0xd8 +#define TRAP_PER_CPU_IRQ_WORKLIST_PA 0xe0 +#define TRAP_PER_CPU_CPU_MONDO_QMASK 0xe8 +#define TRAP_PER_CPU_DEV_MONDO_QMASK 0xec +#define TRAP_PER_CPU_RESUM_QMASK 0xf0 +#define TRAP_PER_CPU_NONRESUM_QMASK 0xf4 + +#define TRAP_BLOCK_SZ_SHIFT 8 + +#include + +#define __GET_CPUID(REG) \ + /* Spitfire implementation (default). */ \ +661: ldxa [%g0] ASI_UPA_CONFIG, REG; \ + srlx REG, 17, REG; \ + and REG, 0x1f, REG; \ + nop; \ + .section .cpuid_patch, "ax"; \ + /* Instruction location. */ \ + .word 661b; \ + /* Cheetah Safari implementation. */ \ + ldxa [%g0] ASI_SAFARI_CONFIG, REG; \ + srlx REG, 17, REG; \ + and REG, 0x3ff, REG; \ + nop; \ + /* Cheetah JBUS implementation. */ \ + ldxa [%g0] ASI_JBUS_CONFIG, REG; \ + srlx REG, 17, REG; \ + and REG, 0x1f, REG; \ + nop; \ + /* Starfire implementation. */ \ + sethi %hi(0x1fff40000d0 >> 9), REG; \ + sllx REG, 9, REG; \ + or REG, 0xd0, REG; \ + lduwa [REG] ASI_PHYS_BYPASS_EC_E, REG;\ + /* sun4v implementation. */ \ + mov SCRATCHPAD_CPUID, REG; \ + ldxa [REG] ASI_SCRATCHPAD, REG; \ + nop; \ + nop; \ + .previous; + +#ifdef CONFIG_SMP + +#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + __GET_CPUID(TMP) \ + sethi %hi(trap_block), DEST; \ + sllx TMP, TRAP_BLOCK_SZ_SHIFT, TMP; \ + or DEST, %lo(trap_block), DEST; \ + add DEST, TMP, DEST; \ + +/* Clobbers TMP, current address space PGD phys address into DEST. */ +#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; + +/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ +#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; + +/* Clobbers TMP, loads DEST with current thread info pointer. */ +#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_THREAD], DEST; + +/* Given the current thread info pointer in THR, load the per-cpu + * area base of the current processor into DEST. REG1, REG2, and REG3 are + * clobbered. + * + * You absolutely cannot use DEST as a temporary in this code. The + * reason is that traps can happen during execution, and return from + * trap will load the fully resolved DEST per-cpu base. This can corrupt + * the calculations done by the macro mid-stream. + */ +#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) \ + lduh [THR + TI_CPU], REG1; \ + sethi %hi(__per_cpu_shift), REG3; \ + sethi %hi(__per_cpu_base), REG2; \ + ldx [REG3 + %lo(__per_cpu_shift)], REG3; \ + ldx [REG2 + %lo(__per_cpu_base)], REG2; \ + sllx REG1, REG3, REG3; \ + add REG3, REG2, DEST; + +#else + +#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + sethi %hi(trap_block), DEST; \ + or DEST, %lo(trap_block), DEST; \ + +/* Uniprocessor versions, we know the cpuid is zero. */ +#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; + +/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ +#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; + +#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_THREAD], DEST; + +/* No per-cpu areas on uniprocessor, so no need to load DEST. */ +#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) + +#endif /* !(CONFIG_SMP) */ + +#endif /* _SPARC64_CPUDATA_H */ diff --git a/include/asm-sparc/delay.h b/include/asm-sparc/delay.h index bc9aba2bead6..6210a3ce9751 100644 --- a/include/asm-sparc/delay.h +++ b/include/asm-sparc/delay.h @@ -1,34 +1,8 @@ -/* - * delay.h: Linux delay routines on the Sparc. - * - * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu). - */ - -#ifndef __SPARC_DELAY_H -#define __SPARC_DELAY_H - -#include - -static inline void __delay(unsigned long loops) -{ - __asm__ __volatile__("cmp %0, 0\n\t" - "1: bne 1b\n\t" - "subcc %0, 1, %0\n" : - "=&r" (loops) : - "0" (loops) : - "cc"); -} - -/* This is too messy with inline asm on the Sparc. */ -extern void __udelay(unsigned long usecs, unsigned long lpj); -extern void __ndelay(unsigned long nsecs, unsigned long lpj); - -#ifdef CONFIG_SMP -#define __udelay_val cpu_data(smp_processor_id()).udelay_val -#else /* SMP */ -#define __udelay_val loops_per_jiffy -#endif /* SMP */ -#define udelay(__usecs) __udelay(__usecs, __udelay_val) -#define ndelay(__nsecs) __ndelay(__nsecs, __udelay_val) - -#endif /* defined(__SPARC_DELAY_H) */ +#ifndef ___ASM_SPARC_DELAY_H +#define ___ASM_SPARC_DELAY_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/delay_32.h b/include/asm-sparc/delay_32.h new file mode 100644 index 000000000000..bc9aba2bead6 --- /dev/null +++ b/include/asm-sparc/delay_32.h @@ -0,0 +1,34 @@ +/* + * delay.h: Linux delay routines on the Sparc. + * + * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu). + */ + +#ifndef __SPARC_DELAY_H +#define __SPARC_DELAY_H + +#include + +static inline void __delay(unsigned long loops) +{ + __asm__ __volatile__("cmp %0, 0\n\t" + "1: bne 1b\n\t" + "subcc %0, 1, %0\n" : + "=&r" (loops) : + "0" (loops) : + "cc"); +} + +/* This is too messy with inline asm on the Sparc. */ +extern void __udelay(unsigned long usecs, unsigned long lpj); +extern void __ndelay(unsigned long nsecs, unsigned long lpj); + +#ifdef CONFIG_SMP +#define __udelay_val cpu_data(smp_processor_id()).udelay_val +#else /* SMP */ +#define __udelay_val loops_per_jiffy +#endif /* SMP */ +#define udelay(__usecs) __udelay(__usecs, __udelay_val) +#define ndelay(__nsecs) __ndelay(__nsecs, __udelay_val) + +#endif /* defined(__SPARC_DELAY_H) */ diff --git a/include/asm-sparc/delay_64.h b/include/asm-sparc/delay_64.h new file mode 100644 index 000000000000..a77aa622d762 --- /dev/null +++ b/include/asm-sparc/delay_64.h @@ -0,0 +1,17 @@ +/* delay.h: Linux delay routines on sparc64. + * + * Copyright (C) 1996, 2004, 2007 David S. Miller (davem@davemloft.net). + */ + +#ifndef _SPARC64_DELAY_H +#define _SPARC64_DELAY_H + +#ifndef __ASSEMBLY__ + +extern void __delay(unsigned long loops); +extern void udelay(unsigned long usecs); +#define mdelay(n) udelay((n) * 1000) + +#endif /* !__ASSEMBLY__ */ + +#endif /* _SPARC64_DELAY_H */ diff --git a/include/asm-sparc/dma-mapping.h b/include/asm-sparc/dma-mapping.h index f3a641e6b2c8..7483504259ce 100644 --- a/include/asm-sparc/dma-mapping.h +++ b/include/asm-sparc/dma-mapping.h @@ -1,11 +1,8 @@ -#ifndef _ASM_SPARC_DMA_MAPPING_H -#define _ASM_SPARC_DMA_MAPPING_H - - -#ifdef CONFIG_PCI -#include +#ifndef ___ASM_SPARC_DMA_MAPPING_H +#define ___ASM_SPARC_DMA_MAPPING_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#include -#endif /* PCI */ - -#endif /* _ASM_SPARC_DMA_MAPPING_H */ +#include +#endif +#endif diff --git a/include/asm-sparc/dma-mapping_32.h b/include/asm-sparc/dma-mapping_32.h new file mode 100644 index 000000000000..f3a641e6b2c8 --- /dev/null +++ b/include/asm-sparc/dma-mapping_32.h @@ -0,0 +1,11 @@ +#ifndef _ASM_SPARC_DMA_MAPPING_H +#define _ASM_SPARC_DMA_MAPPING_H + + +#ifdef CONFIG_PCI +#include +#else +#include +#endif /* PCI */ + +#endif /* _ASM_SPARC_DMA_MAPPING_H */ diff --git a/include/asm-sparc/dma-mapping_64.h b/include/asm-sparc/dma-mapping_64.h new file mode 100644 index 000000000000..38cbec76a33f --- /dev/null +++ b/include/asm-sparc/dma-mapping_64.h @@ -0,0 +1,154 @@ +#ifndef _ASM_SPARC64_DMA_MAPPING_H +#define _ASM_SPARC64_DMA_MAPPING_H + +#include +#include + +#define DMA_ERROR_CODE (~(dma_addr_t)0x0) + +struct dma_ops { + void *(*alloc_coherent)(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); + void (*free_coherent)(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle); + dma_addr_t (*map_single)(struct device *dev, void *cpu_addr, + size_t size, + enum dma_data_direction direction); + void (*unmap_single)(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction); + int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction); + void (*unmap_sg)(struct device *dev, struct scatterlist *sg, + int nhwentries, + enum dma_data_direction direction); + void (*sync_single_for_cpu)(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction); + void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, + int nelems, + enum dma_data_direction direction); +}; +extern const struct dma_ops *dma_ops; + +extern int dma_supported(struct device *dev, u64 mask); +extern int dma_set_mask(struct device *dev, u64 dma_mask); + +static inline void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + return dma_ops->alloc_coherent(dev, size, dma_handle, flag); +} + +static inline void dma_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) +{ + dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); +} + +static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, + size_t size, + enum dma_data_direction direction) +{ + return dma_ops->map_single(dev, cpu_addr, size, direction); +} + +static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction) +{ + dma_ops->unmap_single(dev, dma_addr, size, direction); +} + +static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction) +{ + return dma_ops->map_single(dev, page_address(page) + offset, + size, direction); +} + +static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, + size_t size, + enum dma_data_direction direction) +{ + dma_ops->unmap_single(dev, dma_address, size, direction); +} + +static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ + return dma_ops->map_sg(dev, sg, nents, direction); +} + +static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ + dma_ops->unmap_sg(dev, sg, nents, direction); +} + +static inline void dma_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) +{ + dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction); +} + +static inline void dma_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, + enum dma_data_direction direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + +static inline void dma_sync_single_range_for_cpu(struct device *dev, + dma_addr_t dma_handle, + unsigned long offset, + size_t size, + enum dma_data_direction direction) +{ + dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction); +} + +static inline void dma_sync_single_range_for_device(struct device *dev, + dma_addr_t dma_handle, + unsigned long offset, + size_t size, + enum dma_data_direction direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + + +static inline void dma_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction); +} + +static inline void dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + +static inline int dma_mapping_error(dma_addr_t dma_addr) +{ + return (dma_addr == DMA_ERROR_CODE); +} + +static inline int dma_get_cache_alignment(void) +{ + /* no easy way to get cache size on all processors, so return + * the maximum possible, to be safe */ + return (1 << INTERNODE_CACHE_SHIFT); +} + +#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) +#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) +#define dma_is_consistent(d, h) (1) + +#endif /* _ASM_SPARC64_DMA_MAPPING_H */ diff --git a/include/asm-sparc/dma.h b/include/asm-sparc/dma.h index 959d6c8a71ae..8cc69bfaae2a 100644 --- a/include/asm-sparc/dma.h +++ b/include/asm-sparc/dma.h @@ -1,288 +1,8 @@ -/* include/asm-sparc/dma.h - * - * Copyright 1995 (C) David S. Miller (davem@davemloft.net) - */ - -#ifndef _ASM_SPARC_DMA_H -#define _ASM_SPARC_DMA_H - -#include -#include - -#include /* for invalidate's, etc. */ -#include -#include -#include -#include -#include -#include - -struct page; -extern spinlock_t dma_spin_lock; - -static inline unsigned long claim_dma_lock(void) -{ - unsigned long flags; - spin_lock_irqsave(&dma_spin_lock, flags); - return flags; -} - -static inline void release_dma_lock(unsigned long flags) -{ - spin_unlock_irqrestore(&dma_spin_lock, flags); -} - -/* These are irrelevant for Sparc DMA, but we leave it in so that - * things can compile. - */ -#define MAX_DMA_CHANNELS 8 -#define MAX_DMA_ADDRESS (~0UL) -#define DMA_MODE_READ 1 -#define DMA_MODE_WRITE 2 - -/* Useful constants */ -#define SIZE_16MB (16*1024*1024) -#define SIZE_64K (64*1024) - -/* SBUS DMA controller reg offsets */ -#define DMA_CSR 0x00UL /* rw DMA control/status register 0x00 */ -#define DMA_ADDR 0x04UL /* rw DMA transfer address register 0x04 */ -#define DMA_COUNT 0x08UL /* rw DMA transfer count register 0x08 */ -#define DMA_TEST 0x0cUL /* rw DMA test/debug register 0x0c */ - -/* DVMA chip revisions */ -enum dvma_rev { - dvmarev0, - dvmaesc1, - dvmarev1, - dvmarev2, - dvmarev3, - dvmarevplus, - dvmahme -}; - -#define DMA_HASCOUNT(rev) ((rev)==dvmaesc1) - -/* Linux DMA information structure, filled during probe. */ -struct sbus_dma { - struct sbus_dma *next; - struct sbus_dev *sdev; - void __iomem *regs; - - /* Status, misc info */ - int node; /* Prom node for this DMA device */ - int running; /* Are we doing DMA now? */ - int allocated; /* Are we "owned" by anyone yet? */ - - /* Transfer information. */ - unsigned long addr; /* Start address of current transfer */ - int nbytes; /* Size of current transfer */ - int realbytes; /* For splitting up large transfers, etc. */ - - /* DMA revision */ - enum dvma_rev revision; -}; - -extern struct sbus_dma *dma_chain; - -/* Broken hardware... */ -#ifdef CONFIG_SUN4 -/* Have to sort this out. Does rev0 work fine on sun4[cmd] without isbroken? - * Or is rev0 present only on sun4 boxes? -jj */ -#define DMA_ISBROKEN(dma) ((dma)->revision == dvmarev0 || (dma)->revision == dvmarev1) +#ifndef ___ASM_SPARC_DMA_H +#define ___ASM_SPARC_DMA_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define DMA_ISBROKEN(dma) ((dma)->revision == dvmarev1) +#include #endif -#define DMA_ISESC1(dma) ((dma)->revision == dvmaesc1) - -/* Main routines in dma.c */ -extern void dvma_init(struct sbus_bus *); - -/* Fields in the cond_reg register */ -/* First, the version identification bits */ -#define DMA_DEVICE_ID 0xf0000000 /* Device identification bits */ -#define DMA_VERS0 0x00000000 /* Sunray DMA version */ -#define DMA_ESCV1 0x40000000 /* DMA ESC Version 1 */ -#define DMA_VERS1 0x80000000 /* DMA rev 1 */ -#define DMA_VERS2 0xa0000000 /* DMA rev 2 */ -#define DMA_VERHME 0xb0000000 /* DMA hme gate array */ -#define DMA_VERSPLUS 0x90000000 /* DMA rev 1 PLUS */ - -#define DMA_HNDL_INTR 0x00000001 /* An IRQ needs to be handled */ -#define DMA_HNDL_ERROR 0x00000002 /* We need to take an error */ -#define DMA_FIFO_ISDRAIN 0x0000000c /* The DMA FIFO is draining */ -#define DMA_INT_ENAB 0x00000010 /* Turn on interrupts */ -#define DMA_FIFO_INV 0x00000020 /* Invalidate the FIFO */ -#define DMA_ACC_SZ_ERR 0x00000040 /* The access size was bad */ -#define DMA_FIFO_STDRAIN 0x00000040 /* DMA_VERS1 Drain the FIFO */ -#define DMA_RST_SCSI 0x00000080 /* Reset the SCSI controller */ -#define DMA_RST_ENET DMA_RST_SCSI /* Reset the ENET controller */ -#define DMA_RST_BPP DMA_RST_SCSI /* Reset the BPP controller */ -#define DMA_ST_WRITE 0x00000100 /* write from device to memory */ -#define DMA_ENABLE 0x00000200 /* Fire up DMA, handle requests */ -#define DMA_PEND_READ 0x00000400 /* DMA_VERS1/0/PLUS Pending Read */ -#define DMA_ESC_BURST 0x00000800 /* 1=16byte 0=32byte */ -#define DMA_READ_AHEAD 0x00001800 /* DMA read ahead partial longword */ -#define DMA_DSBL_RD_DRN 0x00001000 /* No EC drain on slave reads */ -#define DMA_BCNT_ENAB 0x00002000 /* If on, use the byte counter */ -#define DMA_TERM_CNTR 0x00004000 /* Terminal counter */ -#define DMA_SCSI_SBUS64 0x00008000 /* HME: Enable 64-bit SBUS mode. */ -#define DMA_CSR_DISAB 0x00010000 /* No FIFO drains during csr */ -#define DMA_SCSI_DISAB 0x00020000 /* No FIFO drains during reg */ -#define DMA_DSBL_WR_INV 0x00020000 /* No EC inval. on slave writes */ -#define DMA_ADD_ENABLE 0x00040000 /* Special ESC DVMA optimization */ -#define DMA_E_BURSTS 0x000c0000 /* ENET: SBUS r/w burst mask */ -#define DMA_E_BURST32 0x00040000 /* ENET: SBUS 32 byte r/w burst */ -#define DMA_E_BURST16 0x00000000 /* ENET: SBUS 16 byte r/w burst */ -#define DMA_BRST_SZ 0x000c0000 /* SCSI: SBUS r/w burst size */ -#define DMA_BRST64 0x00080000 /* SCSI: 64byte bursts (HME on UltraSparc only) */ -#define DMA_BRST32 0x00040000 /* SCSI/BPP: 32byte bursts */ -#define DMA_BRST16 0x00000000 /* SCSI/BPP: 16byte bursts */ -#define DMA_BRST0 0x00080000 /* SCSI: no bursts (non-HME gate arrays) */ -#define DMA_ADDR_DISAB 0x00100000 /* No FIFO drains during addr */ -#define DMA_2CLKS 0x00200000 /* Each transfer = 2 clock ticks */ -#define DMA_3CLKS 0x00400000 /* Each transfer = 3 clock ticks */ -#define DMA_EN_ENETAUI DMA_3CLKS /* Put lance into AUI-cable mode */ -#define DMA_CNTR_DISAB 0x00800000 /* No IRQ when DMA_TERM_CNTR set */ -#define DMA_AUTO_NADDR 0x01000000 /* Use "auto nxt addr" feature */ -#define DMA_SCSI_ON 0x02000000 /* Enable SCSI dma */ -#define DMA_BPP_ON DMA_SCSI_ON /* Enable BPP dma */ -#define DMA_PARITY_OFF 0x02000000 /* HME: disable parity checking */ -#define DMA_LOADED_ADDR 0x04000000 /* Address has been loaded */ -#define DMA_LOADED_NADDR 0x08000000 /* Next address has been loaded */ -#define DMA_RESET_FAS366 0x08000000 /* HME: Assert RESET to FAS366 */ - -/* Values describing the burst-size property from the PROM */ -#define DMA_BURST1 0x01 -#define DMA_BURST2 0x02 -#define DMA_BURST4 0x04 -#define DMA_BURST8 0x08 -#define DMA_BURST16 0x10 -#define DMA_BURST32 0x20 -#define DMA_BURST64 0x40 -#define DMA_BURSTBITS 0x7f - -/* Determine highest possible final transfer address given a base */ -#define DMA_MAXEND(addr) (0x01000000UL-(((unsigned long)(addr))&0x00ffffffUL)) - -/* Yes, I hack a lot of elisp in my spare time... */ -#define DMA_ERROR_P(regs) ((((regs)->cond_reg) & DMA_HNDL_ERROR)) -#define DMA_IRQ_P(regs) ((((regs)->cond_reg) & (DMA_HNDL_INTR | DMA_HNDL_ERROR))) -#define DMA_WRITE_P(regs) ((((regs)->cond_reg) & DMA_ST_WRITE)) -#define DMA_OFF(regs) ((((regs)->cond_reg) &= (~DMA_ENABLE))) -#define DMA_INTSOFF(regs) ((((regs)->cond_reg) &= (~DMA_INT_ENAB))) -#define DMA_INTSON(regs) ((((regs)->cond_reg) |= (DMA_INT_ENAB))) -#define DMA_PUNTFIFO(regs) ((((regs)->cond_reg) |= DMA_FIFO_INV)) -#define DMA_SETSTART(regs, addr) ((((regs)->st_addr) = (char *) addr)) -#define DMA_BEGINDMA_W(regs) \ - ((((regs)->cond_reg |= (DMA_ST_WRITE|DMA_ENABLE|DMA_INT_ENAB)))) -#define DMA_BEGINDMA_R(regs) \ - ((((regs)->cond_reg |= ((DMA_ENABLE|DMA_INT_ENAB)&(~DMA_ST_WRITE))))) - -/* For certain DMA chips, we need to disable ints upon irq entry - * and turn them back on when we are done. So in any ESP interrupt - * handler you *must* call DMA_IRQ_ENTRY upon entry and DMA_IRQ_EXIT - * when leaving the handler. You have been warned... - */ -#define DMA_IRQ_ENTRY(dma, dregs) do { \ - if(DMA_ISBROKEN(dma)) DMA_INTSOFF(dregs); \ - } while (0) - -#define DMA_IRQ_EXIT(dma, dregs) do { \ - if(DMA_ISBROKEN(dma)) DMA_INTSON(dregs); \ - } while(0) - -#if 0 /* P3 this stuff is inline in ledma.c:init_restart_ledma() */ -/* Pause until counter runs out or BIT isn't set in the DMA condition - * register. - */ -static inline void sparc_dma_pause(struct sparc_dma_registers *regs, - unsigned long bit) -{ - int ctr = 50000; /* Let's find some bugs ;) */ - - /* Busy wait until the bit is not set any more */ - while((regs->cond_reg&bit) && (ctr>0)) { - ctr--; - __delay(5); - } - - /* Check for bogus outcome. */ - if(!ctr) - panic("DMA timeout"); -} - -/* Reset the friggin' thing... */ -#define DMA_RESET(dma) do { \ - struct sparc_dma_registers *regs = dma->regs; \ - /* Let the current FIFO drain itself */ \ - sparc_dma_pause(regs, (DMA_FIFO_ISDRAIN)); \ - /* Reset the logic */ \ - regs->cond_reg |= (DMA_RST_SCSI); /* assert */ \ - __delay(400); /* let the bits set ;) */ \ - regs->cond_reg &= ~(DMA_RST_SCSI); /* de-assert */ \ - sparc_dma_enable_interrupts(regs); /* Re-enable interrupts */ \ - /* Enable FAST transfers if available */ \ - if(dma->revision>dvmarev1) regs->cond_reg |= DMA_3CLKS; \ - dma->running = 0; \ -} while(0) #endif - -#define for_each_dvma(dma) \ - for((dma) = dma_chain; (dma); (dma) = (dma)->next) - -extern int get_dma_list(char *); -extern int request_dma(unsigned int, __const__ char *); -extern void free_dma(unsigned int); - -/* From PCI */ - -#ifdef CONFIG_PCI -extern int isa_dma_bridge_buggy; -#else -#define isa_dma_bridge_buggy (0) -#endif - -/* Routines for data transfer buffers. */ -BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long) -BTFIXUPDEF_CALL(void, mmu_unlockarea, char *, unsigned long) - -#define mmu_lockarea(vaddr,len) BTFIXUP_CALL(mmu_lockarea)(vaddr,len) -#define mmu_unlockarea(vaddr,len) BTFIXUP_CALL(mmu_unlockarea)(vaddr,len) - -/* These are implementations for sbus_map_sg/sbus_unmap_sg... collapse later */ -BTFIXUPDEF_CALL(__u32, mmu_get_scsi_one, char *, unsigned long, struct sbus_bus *sbus) -BTFIXUPDEF_CALL(void, mmu_get_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus) -BTFIXUPDEF_CALL(void, mmu_release_scsi_one, __u32, unsigned long, struct sbus_bus *sbus) -BTFIXUPDEF_CALL(void, mmu_release_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus) - -#define mmu_get_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_get_scsi_one)(vaddr,len,sbus) -#define mmu_get_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_get_scsi_sgl)(sg,sz,sbus) -#define mmu_release_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_release_scsi_one)(vaddr,len,sbus) -#define mmu_release_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_release_scsi_sgl)(sg,sz,sbus) - -/* - * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep. - * - * The mmu_map_dma_area establishes two mappings in one go. - * These mappings point to pages normally mapped at 'va' (linear address). - * First mapping is for CPU visible address at 'a', uncached. - * This is an alias, but it works because it is an uncached mapping. - * Second mapping is for device visible address, or "bus" address. - * The bus address is returned at '*pba'. - * - * These functions seem distinct, but are hard to split. On sun4c, - * at least for now, 'a' is equal to bus address, and retured in *pba. - * On sun4m, page attributes depend on the CPU type, so we have to - * know if we are mapping RAM or I/O, so it has to be an additional argument - * to a separate mapping function for CPU visible mappings. - */ -BTFIXUPDEF_CALL(int, mmu_map_dma_area, dma_addr_t *, unsigned long, unsigned long, int len) -BTFIXUPDEF_CALL(struct page *, mmu_translate_dvma, unsigned long busa) -BTFIXUPDEF_CALL(void, mmu_unmap_dma_area, unsigned long busa, int len) - -#define mmu_map_dma_area(pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(pba,va,a,len) -#define mmu_unmap_dma_area(ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(ba,len) -#define mmu_translate_dvma(ba) BTFIXUP_CALL(mmu_translate_dvma)(ba) - -#endif /* !(_ASM_SPARC_DMA_H) */ diff --git a/include/asm-sparc/dma_32.h b/include/asm-sparc/dma_32.h new file mode 100644 index 000000000000..959d6c8a71ae --- /dev/null +++ b/include/asm-sparc/dma_32.h @@ -0,0 +1,288 @@ +/* include/asm-sparc/dma.h + * + * Copyright 1995 (C) David S. Miller (davem@davemloft.net) + */ + +#ifndef _ASM_SPARC_DMA_H +#define _ASM_SPARC_DMA_H + +#include +#include + +#include /* for invalidate's, etc. */ +#include +#include +#include +#include +#include +#include + +struct page; +extern spinlock_t dma_spin_lock; + +static inline unsigned long claim_dma_lock(void) +{ + unsigned long flags; + spin_lock_irqsave(&dma_spin_lock, flags); + return flags; +} + +static inline void release_dma_lock(unsigned long flags) +{ + spin_unlock_irqrestore(&dma_spin_lock, flags); +} + +/* These are irrelevant for Sparc DMA, but we leave it in so that + * things can compile. + */ +#define MAX_DMA_CHANNELS 8 +#define MAX_DMA_ADDRESS (~0UL) +#define DMA_MODE_READ 1 +#define DMA_MODE_WRITE 2 + +/* Useful constants */ +#define SIZE_16MB (16*1024*1024) +#define SIZE_64K (64*1024) + +/* SBUS DMA controller reg offsets */ +#define DMA_CSR 0x00UL /* rw DMA control/status register 0x00 */ +#define DMA_ADDR 0x04UL /* rw DMA transfer address register 0x04 */ +#define DMA_COUNT 0x08UL /* rw DMA transfer count register 0x08 */ +#define DMA_TEST 0x0cUL /* rw DMA test/debug register 0x0c */ + +/* DVMA chip revisions */ +enum dvma_rev { + dvmarev0, + dvmaesc1, + dvmarev1, + dvmarev2, + dvmarev3, + dvmarevplus, + dvmahme +}; + +#define DMA_HASCOUNT(rev) ((rev)==dvmaesc1) + +/* Linux DMA information structure, filled during probe. */ +struct sbus_dma { + struct sbus_dma *next; + struct sbus_dev *sdev; + void __iomem *regs; + + /* Status, misc info */ + int node; /* Prom node for this DMA device */ + int running; /* Are we doing DMA now? */ + int allocated; /* Are we "owned" by anyone yet? */ + + /* Transfer information. */ + unsigned long addr; /* Start address of current transfer */ + int nbytes; /* Size of current transfer */ + int realbytes; /* For splitting up large transfers, etc. */ + + /* DMA revision */ + enum dvma_rev revision; +}; + +extern struct sbus_dma *dma_chain; + +/* Broken hardware... */ +#ifdef CONFIG_SUN4 +/* Have to sort this out. Does rev0 work fine on sun4[cmd] without isbroken? + * Or is rev0 present only on sun4 boxes? -jj */ +#define DMA_ISBROKEN(dma) ((dma)->revision == dvmarev0 || (dma)->revision == dvmarev1) +#else +#define DMA_ISBROKEN(dma) ((dma)->revision == dvmarev1) +#endif +#define DMA_ISESC1(dma) ((dma)->revision == dvmaesc1) + +/* Main routines in dma.c */ +extern void dvma_init(struct sbus_bus *); + +/* Fields in the cond_reg register */ +/* First, the version identification bits */ +#define DMA_DEVICE_ID 0xf0000000 /* Device identification bits */ +#define DMA_VERS0 0x00000000 /* Sunray DMA version */ +#define DMA_ESCV1 0x40000000 /* DMA ESC Version 1 */ +#define DMA_VERS1 0x80000000 /* DMA rev 1 */ +#define DMA_VERS2 0xa0000000 /* DMA rev 2 */ +#define DMA_VERHME 0xb0000000 /* DMA hme gate array */ +#define DMA_VERSPLUS 0x90000000 /* DMA rev 1 PLUS */ + +#define DMA_HNDL_INTR 0x00000001 /* An IRQ needs to be handled */ +#define DMA_HNDL_ERROR 0x00000002 /* We need to take an error */ +#define DMA_FIFO_ISDRAIN 0x0000000c /* The DMA FIFO is draining */ +#define DMA_INT_ENAB 0x00000010 /* Turn on interrupts */ +#define DMA_FIFO_INV 0x00000020 /* Invalidate the FIFO */ +#define DMA_ACC_SZ_ERR 0x00000040 /* The access size was bad */ +#define DMA_FIFO_STDRAIN 0x00000040 /* DMA_VERS1 Drain the FIFO */ +#define DMA_RST_SCSI 0x00000080 /* Reset the SCSI controller */ +#define DMA_RST_ENET DMA_RST_SCSI /* Reset the ENET controller */ +#define DMA_RST_BPP DMA_RST_SCSI /* Reset the BPP controller */ +#define DMA_ST_WRITE 0x00000100 /* write from device to memory */ +#define DMA_ENABLE 0x00000200 /* Fire up DMA, handle requests */ +#define DMA_PEND_READ 0x00000400 /* DMA_VERS1/0/PLUS Pending Read */ +#define DMA_ESC_BURST 0x00000800 /* 1=16byte 0=32byte */ +#define DMA_READ_AHEAD 0x00001800 /* DMA read ahead partial longword */ +#define DMA_DSBL_RD_DRN 0x00001000 /* No EC drain on slave reads */ +#define DMA_BCNT_ENAB 0x00002000 /* If on, use the byte counter */ +#define DMA_TERM_CNTR 0x00004000 /* Terminal counter */ +#define DMA_SCSI_SBUS64 0x00008000 /* HME: Enable 64-bit SBUS mode. */ +#define DMA_CSR_DISAB 0x00010000 /* No FIFO drains during csr */ +#define DMA_SCSI_DISAB 0x00020000 /* No FIFO drains during reg */ +#define DMA_DSBL_WR_INV 0x00020000 /* No EC inval. on slave writes */ +#define DMA_ADD_ENABLE 0x00040000 /* Special ESC DVMA optimization */ +#define DMA_E_BURSTS 0x000c0000 /* ENET: SBUS r/w burst mask */ +#define DMA_E_BURST32 0x00040000 /* ENET: SBUS 32 byte r/w burst */ +#define DMA_E_BURST16 0x00000000 /* ENET: SBUS 16 byte r/w burst */ +#define DMA_BRST_SZ 0x000c0000 /* SCSI: SBUS r/w burst size */ +#define DMA_BRST64 0x00080000 /* SCSI: 64byte bursts (HME on UltraSparc only) */ +#define DMA_BRST32 0x00040000 /* SCSI/BPP: 32byte bursts */ +#define DMA_BRST16 0x00000000 /* SCSI/BPP: 16byte bursts */ +#define DMA_BRST0 0x00080000 /* SCSI: no bursts (non-HME gate arrays) */ +#define DMA_ADDR_DISAB 0x00100000 /* No FIFO drains during addr */ +#define DMA_2CLKS 0x00200000 /* Each transfer = 2 clock ticks */ +#define DMA_3CLKS 0x00400000 /* Each transfer = 3 clock ticks */ +#define DMA_EN_ENETAUI DMA_3CLKS /* Put lance into AUI-cable mode */ +#define DMA_CNTR_DISAB 0x00800000 /* No IRQ when DMA_TERM_CNTR set */ +#define DMA_AUTO_NADDR 0x01000000 /* Use "auto nxt addr" feature */ +#define DMA_SCSI_ON 0x02000000 /* Enable SCSI dma */ +#define DMA_BPP_ON DMA_SCSI_ON /* Enable BPP dma */ +#define DMA_PARITY_OFF 0x02000000 /* HME: disable parity checking */ +#define DMA_LOADED_ADDR 0x04000000 /* Address has been loaded */ +#define DMA_LOADED_NADDR 0x08000000 /* Next address has been loaded */ +#define DMA_RESET_FAS366 0x08000000 /* HME: Assert RESET to FAS366 */ + +/* Values describing the burst-size property from the PROM */ +#define DMA_BURST1 0x01 +#define DMA_BURST2 0x02 +#define DMA_BURST4 0x04 +#define DMA_BURST8 0x08 +#define DMA_BURST16 0x10 +#define DMA_BURST32 0x20 +#define DMA_BURST64 0x40 +#define DMA_BURSTBITS 0x7f + +/* Determine highest possible final transfer address given a base */ +#define DMA_MAXEND(addr) (0x01000000UL-(((unsigned long)(addr))&0x00ffffffUL)) + +/* Yes, I hack a lot of elisp in my spare time... */ +#define DMA_ERROR_P(regs) ((((regs)->cond_reg) & DMA_HNDL_ERROR)) +#define DMA_IRQ_P(regs) ((((regs)->cond_reg) & (DMA_HNDL_INTR | DMA_HNDL_ERROR))) +#define DMA_WRITE_P(regs) ((((regs)->cond_reg) & DMA_ST_WRITE)) +#define DMA_OFF(regs) ((((regs)->cond_reg) &= (~DMA_ENABLE))) +#define DMA_INTSOFF(regs) ((((regs)->cond_reg) &= (~DMA_INT_ENAB))) +#define DMA_INTSON(regs) ((((regs)->cond_reg) |= (DMA_INT_ENAB))) +#define DMA_PUNTFIFO(regs) ((((regs)->cond_reg) |= DMA_FIFO_INV)) +#define DMA_SETSTART(regs, addr) ((((regs)->st_addr) = (char *) addr)) +#define DMA_BEGINDMA_W(regs) \ + ((((regs)->cond_reg |= (DMA_ST_WRITE|DMA_ENABLE|DMA_INT_ENAB)))) +#define DMA_BEGINDMA_R(regs) \ + ((((regs)->cond_reg |= ((DMA_ENABLE|DMA_INT_ENAB)&(~DMA_ST_WRITE))))) + +/* For certain DMA chips, we need to disable ints upon irq entry + * and turn them back on when we are done. So in any ESP interrupt + * handler you *must* call DMA_IRQ_ENTRY upon entry and DMA_IRQ_EXIT + * when leaving the handler. You have been warned... + */ +#define DMA_IRQ_ENTRY(dma, dregs) do { \ + if(DMA_ISBROKEN(dma)) DMA_INTSOFF(dregs); \ + } while (0) + +#define DMA_IRQ_EXIT(dma, dregs) do { \ + if(DMA_ISBROKEN(dma)) DMA_INTSON(dregs); \ + } while(0) + +#if 0 /* P3 this stuff is inline in ledma.c:init_restart_ledma() */ +/* Pause until counter runs out or BIT isn't set in the DMA condition + * register. + */ +static inline void sparc_dma_pause(struct sparc_dma_registers *regs, + unsigned long bit) +{ + int ctr = 50000; /* Let's find some bugs ;) */ + + /* Busy wait until the bit is not set any more */ + while((regs->cond_reg&bit) && (ctr>0)) { + ctr--; + __delay(5); + } + + /* Check for bogus outcome. */ + if(!ctr) + panic("DMA timeout"); +} + +/* Reset the friggin' thing... */ +#define DMA_RESET(dma) do { \ + struct sparc_dma_registers *regs = dma->regs; \ + /* Let the current FIFO drain itself */ \ + sparc_dma_pause(regs, (DMA_FIFO_ISDRAIN)); \ + /* Reset the logic */ \ + regs->cond_reg |= (DMA_RST_SCSI); /* assert */ \ + __delay(400); /* let the bits set ;) */ \ + regs->cond_reg &= ~(DMA_RST_SCSI); /* de-assert */ \ + sparc_dma_enable_interrupts(regs); /* Re-enable interrupts */ \ + /* Enable FAST transfers if available */ \ + if(dma->revision>dvmarev1) regs->cond_reg |= DMA_3CLKS; \ + dma->running = 0; \ +} while(0) +#endif + +#define for_each_dvma(dma) \ + for((dma) = dma_chain; (dma); (dma) = (dma)->next) + +extern int get_dma_list(char *); +extern int request_dma(unsigned int, __const__ char *); +extern void free_dma(unsigned int); + +/* From PCI */ + +#ifdef CONFIG_PCI +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy (0) +#endif + +/* Routines for data transfer buffers. */ +BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long) +BTFIXUPDEF_CALL(void, mmu_unlockarea, char *, unsigned long) + +#define mmu_lockarea(vaddr,len) BTFIXUP_CALL(mmu_lockarea)(vaddr,len) +#define mmu_unlockarea(vaddr,len) BTFIXUP_CALL(mmu_unlockarea)(vaddr,len) + +/* These are implementations for sbus_map_sg/sbus_unmap_sg... collapse later */ +BTFIXUPDEF_CALL(__u32, mmu_get_scsi_one, char *, unsigned long, struct sbus_bus *sbus) +BTFIXUPDEF_CALL(void, mmu_get_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus) +BTFIXUPDEF_CALL(void, mmu_release_scsi_one, __u32, unsigned long, struct sbus_bus *sbus) +BTFIXUPDEF_CALL(void, mmu_release_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus) + +#define mmu_get_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_get_scsi_one)(vaddr,len,sbus) +#define mmu_get_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_get_scsi_sgl)(sg,sz,sbus) +#define mmu_release_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_release_scsi_one)(vaddr,len,sbus) +#define mmu_release_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_release_scsi_sgl)(sg,sz,sbus) + +/* + * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep. + * + * The mmu_map_dma_area establishes two mappings in one go. + * These mappings point to pages normally mapped at 'va' (linear address). + * First mapping is for CPU visible address at 'a', uncached. + * This is an alias, but it works because it is an uncached mapping. + * Second mapping is for device visible address, or "bus" address. + * The bus address is returned at '*pba'. + * + * These functions seem distinct, but are hard to split. On sun4c, + * at least for now, 'a' is equal to bus address, and retured in *pba. + * On sun4m, page attributes depend on the CPU type, so we have to + * know if we are mapping RAM or I/O, so it has to be an additional argument + * to a separate mapping function for CPU visible mappings. + */ +BTFIXUPDEF_CALL(int, mmu_map_dma_area, dma_addr_t *, unsigned long, unsigned long, int len) +BTFIXUPDEF_CALL(struct page *, mmu_translate_dvma, unsigned long busa) +BTFIXUPDEF_CALL(void, mmu_unmap_dma_area, unsigned long busa, int len) + +#define mmu_map_dma_area(pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(pba,va,a,len) +#define mmu_unmap_dma_area(ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(ba,len) +#define mmu_translate_dvma(ba) BTFIXUP_CALL(mmu_translate_dvma)(ba) + +#endif /* !(_ASM_SPARC_DMA_H) */ diff --git a/include/asm-sparc/dma_64.h b/include/asm-sparc/dma_64.h new file mode 100644 index 000000000000..9d4c024bd3b3 --- /dev/null +++ b/include/asm-sparc/dma_64.h @@ -0,0 +1,205 @@ +/* + * include/asm-sparc64/dma.h + * + * Copyright 1996 (C) David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _ASM_SPARC64_DMA_H +#define _ASM_SPARC64_DMA_H + +#include +#include +#include + +#include +#include +#include + +/* These are irrelevant for Sparc DMA, but we leave it in so that + * things can compile. + */ +#define MAX_DMA_CHANNELS 8 +#define DMA_MODE_READ 1 +#define DMA_MODE_WRITE 2 +#define MAX_DMA_ADDRESS (~0UL) + +/* Useful constants */ +#define SIZE_16MB (16*1024*1024) +#define SIZE_64K (64*1024) + +/* SBUS DMA controller reg offsets */ +#define DMA_CSR 0x00UL /* rw DMA control/status register 0x00 */ +#define DMA_ADDR 0x04UL /* rw DMA transfer address register 0x04 */ +#define DMA_COUNT 0x08UL /* rw DMA transfer count register 0x08 */ +#define DMA_TEST 0x0cUL /* rw DMA test/debug register 0x0c */ + +/* DVMA chip revisions */ +enum dvma_rev { + dvmarev0, + dvmaesc1, + dvmarev1, + dvmarev2, + dvmarev3, + dvmarevplus, + dvmahme +}; + +#define DMA_HASCOUNT(rev) ((rev)==dvmaesc1) + +/* Linux DMA information structure, filled during probe. */ +struct sbus_dma { + struct sbus_dma *next; + struct sbus_dev *sdev; + void __iomem *regs; + + /* Status, misc info */ + int node; /* Prom node for this DMA device */ + int running; /* Are we doing DMA now? */ + int allocated; /* Are we "owned" by anyone yet? */ + + /* Transfer information. */ + u32 addr; /* Start address of current transfer */ + int nbytes; /* Size of current transfer */ + int realbytes; /* For splitting up large transfers, etc. */ + + /* DMA revision */ + enum dvma_rev revision; +}; + +extern struct sbus_dma *dma_chain; + +/* Broken hardware... */ +#define DMA_ISBROKEN(dma) ((dma)->revision == dvmarev1) +#define DMA_ISESC1(dma) ((dma)->revision == dvmaesc1) + +/* Main routines in dma.c */ +extern void dvma_init(struct sbus_bus *); + +/* Fields in the cond_reg register */ +/* First, the version identification bits */ +#define DMA_DEVICE_ID 0xf0000000 /* Device identification bits */ +#define DMA_VERS0 0x00000000 /* Sunray DMA version */ +#define DMA_ESCV1 0x40000000 /* DMA ESC Version 1 */ +#define DMA_VERS1 0x80000000 /* DMA rev 1 */ +#define DMA_VERS2 0xa0000000 /* DMA rev 2 */ +#define DMA_VERHME 0xb0000000 /* DMA hme gate array */ +#define DMA_VERSPLUS 0x90000000 /* DMA rev 1 PLUS */ + +#define DMA_HNDL_INTR 0x00000001 /* An IRQ needs to be handled */ +#define DMA_HNDL_ERROR 0x00000002 /* We need to take an error */ +#define DMA_FIFO_ISDRAIN 0x0000000c /* The DMA FIFO is draining */ +#define DMA_INT_ENAB 0x00000010 /* Turn on interrupts */ +#define DMA_FIFO_INV 0x00000020 /* Invalidate the FIFO */ +#define DMA_ACC_SZ_ERR 0x00000040 /* The access size was bad */ +#define DMA_FIFO_STDRAIN 0x00000040 /* DMA_VERS1 Drain the FIFO */ +#define DMA_RST_SCSI 0x00000080 /* Reset the SCSI controller */ +#define DMA_RST_ENET DMA_RST_SCSI /* Reset the ENET controller */ +#define DMA_ST_WRITE 0x00000100 /* write from device to memory */ +#define DMA_ENABLE 0x00000200 /* Fire up DMA, handle requests */ +#define DMA_PEND_READ 0x00000400 /* DMA_VERS1/0/PLUS Pending Read */ +#define DMA_ESC_BURST 0x00000800 /* 1=16byte 0=32byte */ +#define DMA_READ_AHEAD 0x00001800 /* DMA read ahead partial longword */ +#define DMA_DSBL_RD_DRN 0x00001000 /* No EC drain on slave reads */ +#define DMA_BCNT_ENAB 0x00002000 /* If on, use the byte counter */ +#define DMA_TERM_CNTR 0x00004000 /* Terminal counter */ +#define DMA_SCSI_SBUS64 0x00008000 /* HME: Enable 64-bit SBUS mode. */ +#define DMA_CSR_DISAB 0x00010000 /* No FIFO drains during csr */ +#define DMA_SCSI_DISAB 0x00020000 /* No FIFO drains during reg */ +#define DMA_DSBL_WR_INV 0x00020000 /* No EC inval. on slave writes */ +#define DMA_ADD_ENABLE 0x00040000 /* Special ESC DVMA optimization */ +#define DMA_E_BURSTS 0x000c0000 /* ENET: SBUS r/w burst mask */ +#define DMA_E_BURST32 0x00040000 /* ENET: SBUS 32 byte r/w burst */ +#define DMA_E_BURST16 0x00000000 /* ENET: SBUS 16 byte r/w burst */ +#define DMA_BRST_SZ 0x000c0000 /* SCSI: SBUS r/w burst size */ +#define DMA_BRST64 0x000c0000 /* SCSI: 64byte bursts (HME on UltraSparc only) */ +#define DMA_BRST32 0x00040000 /* SCSI: 32byte bursts */ +#define DMA_BRST16 0x00000000 /* SCSI: 16byte bursts */ +#define DMA_BRST0 0x00080000 /* SCSI: no bursts (non-HME gate arrays) */ +#define DMA_ADDR_DISAB 0x00100000 /* No FIFO drains during addr */ +#define DMA_2CLKS 0x00200000 /* Each transfer = 2 clock ticks */ +#define DMA_3CLKS 0x00400000 /* Each transfer = 3 clock ticks */ +#define DMA_EN_ENETAUI DMA_3CLKS /* Put lance into AUI-cable mode */ +#define DMA_CNTR_DISAB 0x00800000 /* No IRQ when DMA_TERM_CNTR set */ +#define DMA_AUTO_NADDR 0x01000000 /* Use "auto nxt addr" feature */ +#define DMA_SCSI_ON 0x02000000 /* Enable SCSI dma */ +#define DMA_PARITY_OFF 0x02000000 /* HME: disable parity checking */ +#define DMA_LOADED_ADDR 0x04000000 /* Address has been loaded */ +#define DMA_LOADED_NADDR 0x08000000 /* Next address has been loaded */ +#define DMA_RESET_FAS366 0x08000000 /* HME: Assert RESET to FAS366 */ + +/* Values describing the burst-size property from the PROM */ +#define DMA_BURST1 0x01 +#define DMA_BURST2 0x02 +#define DMA_BURST4 0x04 +#define DMA_BURST8 0x08 +#define DMA_BURST16 0x10 +#define DMA_BURST32 0x20 +#define DMA_BURST64 0x40 +#define DMA_BURSTBITS 0x7f + +/* Determine highest possible final transfer address given a base */ +#define DMA_MAXEND(addr) (0x01000000UL-(((unsigned long)(addr))&0x00ffffffUL)) + +/* Yes, I hack a lot of elisp in my spare time... */ +#define DMA_ERROR_P(regs) ((sbus_readl((regs) + DMA_CSR) & DMA_HNDL_ERROR)) +#define DMA_IRQ_P(regs) ((sbus_readl((regs) + DMA_CSR)) & (DMA_HNDL_INTR | DMA_HNDL_ERROR)) +#define DMA_WRITE_P(regs) ((sbus_readl((regs) + DMA_CSR) & DMA_ST_WRITE)) +#define DMA_OFF(__regs) \ +do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ + tmp &= ~DMA_ENABLE; \ + sbus_writel(tmp, (__regs) + DMA_CSR); \ +} while(0) +#define DMA_INTSOFF(__regs) \ +do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ + tmp &= ~DMA_INT_ENAB; \ + sbus_writel(tmp, (__regs) + DMA_CSR); \ +} while(0) +#define DMA_INTSON(__regs) \ +do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ + tmp |= DMA_INT_ENAB; \ + sbus_writel(tmp, (__regs) + DMA_CSR); \ +} while(0) +#define DMA_PUNTFIFO(__regs) \ +do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ + tmp |= DMA_FIFO_INV; \ + sbus_writel(tmp, (__regs) + DMA_CSR); \ +} while(0) +#define DMA_SETSTART(__regs, __addr) \ + sbus_writel((u32)(__addr), (__regs) + DMA_ADDR); +#define DMA_BEGINDMA_W(__regs) \ +do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ + tmp |= (DMA_ST_WRITE|DMA_ENABLE|DMA_INT_ENAB); \ + sbus_writel(tmp, (__regs) + DMA_CSR); \ +} while(0) +#define DMA_BEGINDMA_R(__regs) \ +do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ + tmp |= (DMA_ENABLE|DMA_INT_ENAB); \ + tmp &= ~DMA_ST_WRITE; \ + sbus_writel(tmp, (__regs) + DMA_CSR); \ +} while(0) + +/* For certain DMA chips, we need to disable ints upon irq entry + * and turn them back on when we are done. So in any ESP interrupt + * handler you *must* call DMA_IRQ_ENTRY upon entry and DMA_IRQ_EXIT + * when leaving the handler. You have been warned... + */ +#define DMA_IRQ_ENTRY(dma, dregs) do { \ + if(DMA_ISBROKEN(dma)) DMA_INTSOFF(dregs); \ + } while (0) + +#define DMA_IRQ_EXIT(dma, dregs) do { \ + if(DMA_ISBROKEN(dma)) DMA_INTSON(dregs); \ + } while(0) + +#define for_each_dvma(dma) \ + for((dma) = dma_chain; (dma); (dma) = (dma)->next) + +/* From PCI */ + +#ifdef CONFIG_PCI +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy (0) +#endif + +#endif /* !(_ASM_SPARC64_DMA_H) */ diff --git a/include/asm-sparc/ebus.h b/include/asm-sparc/ebus.h index 491f85d662df..a5da2d00cd18 100644 --- a/include/asm-sparc/ebus.h +++ b/include/asm-sparc/ebus.h @@ -1,99 +1,8 @@ -/* - * ebus.h: PCI to Ebus pseudo driver software state. - * - * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) - * - * Adopted for sparc by V. Roganov and G. Raiko. - */ - -#ifndef __SPARC_EBUS_H -#define __SPARC_EBUS_H - -#ifndef _LINUX_IOPORT_H -#include +#ifndef ___ASM_SPARC_EBUS_H +#define ___ASM_SPARC_EBUS_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif -#include -#include -#include - -struct linux_ebus_child { - struct linux_ebus_child *next; - struct linux_ebus_device *parent; - struct linux_ebus *bus; - struct device_node *prom_node; - struct resource resource[PROMREG_MAX]; - int num_addrs; - unsigned int irqs[PROMINTR_MAX]; - int num_irqs; -}; - -struct linux_ebus_device { - struct of_device ofdev; - struct linux_ebus_device *next; - struct linux_ebus_child *children; - struct linux_ebus *bus; - struct device_node *prom_node; - struct resource resource[PROMREG_MAX]; - int num_addrs; - unsigned int irqs[PROMINTR_MAX]; - int num_irqs; -}; -#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev) - -struct linux_ebus { - struct of_device ofdev; - struct linux_ebus *next; - struct linux_ebus_device *devices; - struct linux_pbm_info *parent; - struct pci_dev *self; - struct device_node *prom_node; -}; -#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev) - -struct linux_ebus_dma { - unsigned int dcsr; - unsigned int dacr; - unsigned int dbcr; -}; - -#define EBUS_DCSR_INT_PEND 0x00000001 -#define EBUS_DCSR_ERR_PEND 0x00000002 -#define EBUS_DCSR_DRAIN 0x00000004 -#define EBUS_DCSR_INT_EN 0x00000010 -#define EBUS_DCSR_RESET 0x00000080 -#define EBUS_DCSR_WRITE 0x00000100 -#define EBUS_DCSR_EN_DMA 0x00000200 -#define EBUS_DCSR_CYC_PEND 0x00000400 -#define EBUS_DCSR_DIAG_RD_DONE 0x00000800 -#define EBUS_DCSR_DIAG_WR_DONE 0x00001000 -#define EBUS_DCSR_EN_CNT 0x00002000 -#define EBUS_DCSR_TC 0x00004000 -#define EBUS_DCSR_DIS_CSR_DRN 0x00010000 -#define EBUS_DCSR_BURST_SZ_MASK 0x000c0000 -#define EBUS_DCSR_BURST_SZ_1 0x00080000 -#define EBUS_DCSR_BURST_SZ_4 0x00000000 -#define EBUS_DCSR_BURST_SZ_8 0x00040000 -#define EBUS_DCSR_BURST_SZ_16 0x000c0000 -#define EBUS_DCSR_DIAG_EN 0x00100000 -#define EBUS_DCSR_DIS_ERR_PEND 0x00400000 -#define EBUS_DCSR_TCI_DIS 0x00800000 -#define EBUS_DCSR_EN_NEXT 0x01000000 -#define EBUS_DCSR_DMA_ON 0x02000000 -#define EBUS_DCSR_A_LOADED 0x04000000 -#define EBUS_DCSR_NA_LOADED 0x08000000 -#define EBUS_DCSR_DEV_ID_MASK 0xf0000000 - -extern struct linux_ebus *ebus_chain; - -extern void ebus_init(void); - -#define for_each_ebus(bus) \ - for((bus) = ebus_chain; (bus); (bus) = (bus)->next) - -#define for_each_ebusdev(dev, bus) \ - for((dev) = (bus)->devices; (dev); (dev) = (dev)->next) - -#define for_each_edevchild(dev, child) \ - for((child) = (dev)->children; (child); (child) = (child)->next) - -#endif /* !(__SPARC_EBUS_H) */ diff --git a/include/asm-sparc/ebus_32.h b/include/asm-sparc/ebus_32.h new file mode 100644 index 000000000000..29cb7dfc6b79 --- /dev/null +++ b/include/asm-sparc/ebus_32.h @@ -0,0 +1,99 @@ +/* + * ebus.h: PCI to Ebus pseudo driver software state. + * + * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) + * + * Adopted for sparc by V. Roganov and G. Raiko. + */ + +#ifndef __SPARC_EBUS_H +#define __SPARC_EBUS_H + +#ifndef _LINUX_IOPORT_H +#include +#endif +#include +#include +#include + +struct linux_ebus_child { + struct linux_ebus_child *next; + struct linux_ebus_device *parent; + struct linux_ebus *bus; + struct device_node *prom_node; + struct resource resource[PROMREG_MAX]; + int num_addrs; + unsigned int irqs[PROMINTR_MAX]; + int num_irqs; +}; + +struct linux_ebus_device { + struct of_device ofdev; + struct linux_ebus_device *next; + struct linux_ebus_child *children; + struct linux_ebus *bus; + struct device_node *prom_node; + struct resource resource[PROMREG_MAX]; + int num_addrs; + unsigned int irqs[PROMINTR_MAX]; + int num_irqs; +}; +#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev) + +struct linux_ebus { + struct of_device ofdev; + struct linux_ebus *next; + struct linux_ebus_device *devices; + struct linux_pbm_info *parent; + struct pci_dev *self; + struct device_node *prom_node; +}; +#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev) + +struct linux_ebus_dma { + unsigned int dcsr; + unsigned int dacr; + unsigned int dbcr; +}; + +#define EBUS_DCSR_INT_PEND 0x00000001 +#define EBUS_DCSR_ERR_PEND 0x00000002 +#define EBUS_DCSR_DRAIN 0x00000004 +#define EBUS_DCSR_INT_EN 0x00000010 +#define EBUS_DCSR_RESET 0x00000080 +#define EBUS_DCSR_WRITE 0x00000100 +#define EBUS_DCSR_EN_DMA 0x00000200 +#define EBUS_DCSR_CYC_PEND 0x00000400 +#define EBUS_DCSR_DIAG_RD_DONE 0x00000800 +#define EBUS_DCSR_DIAG_WR_DONE 0x00001000 +#define EBUS_DCSR_EN_CNT 0x00002000 +#define EBUS_DCSR_TC 0x00004000 +#define EBUS_DCSR_DIS_CSR_DRN 0x00010000 +#define EBUS_DCSR_BURST_SZ_MASK 0x000c0000 +#define EBUS_DCSR_BURST_SZ_1 0x00080000 +#define EBUS_DCSR_BURST_SZ_4 0x00000000 +#define EBUS_DCSR_BURST_SZ_8 0x00040000 +#define EBUS_DCSR_BURST_SZ_16 0x000c0000 +#define EBUS_DCSR_DIAG_EN 0x00100000 +#define EBUS_DCSR_DIS_ERR_PEND 0x00400000 +#define EBUS_DCSR_TCI_DIS 0x00800000 +#define EBUS_DCSR_EN_NEXT 0x01000000 +#define EBUS_DCSR_DMA_ON 0x02000000 +#define EBUS_DCSR_A_LOADED 0x04000000 +#define EBUS_DCSR_NA_LOADED 0x08000000 +#define EBUS_DCSR_DEV_ID_MASK 0xf0000000 + +extern struct linux_ebus *ebus_chain; + +extern void ebus_init(void); + +#define for_each_ebus(bus) \ + for((bus) = ebus_chain; (bus); (bus) = (bus)->next) + +#define for_each_ebusdev(dev, bus) \ + for((dev) = (bus)->devices; (dev); (dev) = (dev)->next) + +#define for_each_edevchild(dev, child) \ + for((child) = (dev)->children; (child); (child) = (child)->next) + +#endif /* !(__SPARC_EBUS_H) */ diff --git a/include/asm-sparc/ebus_64.h b/include/asm-sparc/ebus_64.h new file mode 100644 index 000000000000..fcc62b97ced5 --- /dev/null +++ b/include/asm-sparc/ebus_64.h @@ -0,0 +1,94 @@ +/* + * ebus.h: PCI to Ebus pseudo driver software state. + * + * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) + * Copyright (C) 1999 David S. Miller (davem@redhat.com) + */ + +#ifndef __SPARC64_EBUS_H +#define __SPARC64_EBUS_H + +#include +#include +#include + +struct linux_ebus_child { + struct linux_ebus_child *next; + struct linux_ebus_device *parent; + struct linux_ebus *bus; + struct device_node *prom_node; + struct resource resource[PROMREG_MAX]; + int num_addrs; + unsigned int irqs[PROMINTR_MAX]; + int num_irqs; +}; + +struct linux_ebus_device { + struct of_device ofdev; + struct linux_ebus_device *next; + struct linux_ebus_child *children; + struct linux_ebus *bus; + struct device_node *prom_node; + struct resource resource[PROMREG_MAX]; + int num_addrs; + unsigned int irqs[PROMINTR_MAX]; + int num_irqs; +}; +#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev) + +struct linux_ebus { + struct of_device ofdev; + struct linux_ebus *next; + struct linux_ebus_device *devices; + struct pci_dev *self; + int index; + int is_rio; + struct device_node *prom_node; +}; +#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev) + +struct ebus_dma_info { + spinlock_t lock; + void __iomem *regs; + + unsigned int flags; +#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001 +#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002 + + /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is + * set. + */ + void (*callback)(struct ebus_dma_info *p, int event, void *cookie); + void *client_cookie; + unsigned int irq; +#define EBUS_DMA_EVENT_ERROR 1 +#define EBUS_DMA_EVENT_DMA 2 +#define EBUS_DMA_EVENT_DEVICE 4 + + unsigned char name[64]; +}; + +extern int ebus_dma_register(struct ebus_dma_info *p); +extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on); +extern void ebus_dma_unregister(struct ebus_dma_info *p); +extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, + size_t len); +extern void ebus_dma_prepare(struct ebus_dma_info *p, int write); +extern unsigned int ebus_dma_residue(struct ebus_dma_info *p); +extern unsigned int ebus_dma_addr(struct ebus_dma_info *p); +extern void ebus_dma_enable(struct ebus_dma_info *p, int on); + +extern struct linux_ebus *ebus_chain; + +extern void ebus_init(void); + +#define for_each_ebus(bus) \ + for((bus) = ebus_chain; (bus); (bus) = (bus)->next) + +#define for_each_ebusdev(dev, bus) \ + for((dev) = (bus)->devices; (dev); (dev) = (dev)->next) + +#define for_each_edevchild(dev, child) \ + for((child) = (dev)->children; (child); (child) = (child)->next) + +#endif /* !(__SPARC64_EBUS_H) */ diff --git a/include/asm-sparc/elf.h b/include/asm-sparc/elf.h index d043f80bc2fd..f035c45d7b5e 100644 --- a/include/asm-sparc/elf.h +++ b/include/asm-sparc/elf.h @@ -1,145 +1,8 @@ -#ifndef __ASMSPARC_ELF_H -#define __ASMSPARC_ELF_H - -/* - * ELF register definitions.. - */ - -#include - -/* - * Sparc section types - */ -#define STT_REGISTER 13 - -/* - * Sparc ELF relocation types - */ -#define R_SPARC_NONE 0 -#define R_SPARC_8 1 -#define R_SPARC_16 2 -#define R_SPARC_32 3 -#define R_SPARC_DISP8 4 -#define R_SPARC_DISP16 5 -#define R_SPARC_DISP32 6 -#define R_SPARC_WDISP30 7 -#define R_SPARC_WDISP22 8 -#define R_SPARC_HI22 9 -#define R_SPARC_22 10 -#define R_SPARC_13 11 -#define R_SPARC_LO10 12 -#define R_SPARC_GOT10 13 -#define R_SPARC_GOT13 14 -#define R_SPARC_GOT22 15 -#define R_SPARC_PC10 16 -#define R_SPARC_PC22 17 -#define R_SPARC_WPLT30 18 -#define R_SPARC_COPY 19 -#define R_SPARC_GLOB_DAT 20 -#define R_SPARC_JMP_SLOT 21 -#define R_SPARC_RELATIVE 22 -#define R_SPARC_UA32 23 -#define R_SPARC_PLT32 24 -#define R_SPARC_HIPLT22 25 -#define R_SPARC_LOPLT10 26 -#define R_SPARC_PCPLT32 27 -#define R_SPARC_PCPLT22 28 -#define R_SPARC_PCPLT10 29 -#define R_SPARC_10 30 -#define R_SPARC_11 31 -#define R_SPARC_64 32 -#define R_SPARC_OLO10 33 -#define R_SPARC_WDISP16 40 -#define R_SPARC_WDISP19 41 -#define R_SPARC_7 43 -#define R_SPARC_5 44 -#define R_SPARC_6 45 - -/* Bits present in AT_HWCAP, primarily for Sparc32. */ - -#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */ -#define HWCAP_SPARC_STBAR 2 -#define HWCAP_SPARC_SWAP 4 -#define HWCAP_SPARC_MULDIV 8 -#define HWCAP_SPARC_V9 16 -#define HWCAP_SPARC_ULTRA3 32 - -#define CORE_DUMP_USE_REGSET - -/* Format is: - * G0 --> G7 - * O0 --> O7 - * L0 --> L7 - * I0 --> I7 - * PSR, PC, nPC, Y, WIM, TBR - */ -typedef unsigned long elf_greg_t; -#define ELF_NGREG 38 -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct { - union { - unsigned long pr_regs[32]; - double pr_dregs[16]; - } pr_fr; - unsigned long __unused; - unsigned long pr_fsr; - unsigned char pr_qcnt; - unsigned char pr_q_entrysize; - unsigned char pr_en; - unsigned int pr_q[64]; -} elf_fpregset_t; - -#include - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) ((x)->e_machine == EM_SPARC) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_ARCH EM_SPARC -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB - -#define USE_ELF_CORE_DUMP -#ifndef CONFIG_SUN4 -#define ELF_EXEC_PAGESIZE 4096 +#ifndef ___ASM_SPARC_ELF_H +#define ___ASM_SPARC_ELF_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define ELF_EXEC_PAGESIZE 8192 +#include +#endif #endif - - -/* This is the location that an ET_DYN program is loaded if exec'ed. Typical - use of this is to invoke "./ld.so someprog" to test out a new version of - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) - -/* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. This can NOT be done in userspace - on Sparc. */ - -/* Sun4c has none of the capabilities, most sun4m's have them all. - * XXX This is gross, set some global variable at boot time. -DaveM - */ -#define ELF_HWCAP ((ARCH_SUN4C_SUN4) ? 0 : \ - (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \ - HWCAP_SPARC_SWAP | \ - ((srmmu_modtype != Cypress && \ - srmmu_modtype != Cypress_vE && \ - srmmu_modtype != Cypress_vD) ? \ - HWCAP_SPARC_MULDIV : 0))) - -/* This yields a string that ld.so will use to load implementation - specific libraries for optimization. This is more specific in - intent than poking at uname or /proc/cpuinfo. */ - -#define ELF_PLATFORM (NULL) - -#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) - -#endif /* !(__ASMSPARC_ELF_H) */ diff --git a/include/asm-sparc/elf_32.h b/include/asm-sparc/elf_32.h new file mode 100644 index 000000000000..d043f80bc2fd --- /dev/null +++ b/include/asm-sparc/elf_32.h @@ -0,0 +1,145 @@ +#ifndef __ASMSPARC_ELF_H +#define __ASMSPARC_ELF_H + +/* + * ELF register definitions.. + */ + +#include + +/* + * Sparc section types + */ +#define STT_REGISTER 13 + +/* + * Sparc ELF relocation types + */ +#define R_SPARC_NONE 0 +#define R_SPARC_8 1 +#define R_SPARC_16 2 +#define R_SPARC_32 3 +#define R_SPARC_DISP8 4 +#define R_SPARC_DISP16 5 +#define R_SPARC_DISP32 6 +#define R_SPARC_WDISP30 7 +#define R_SPARC_WDISP22 8 +#define R_SPARC_HI22 9 +#define R_SPARC_22 10 +#define R_SPARC_13 11 +#define R_SPARC_LO10 12 +#define R_SPARC_GOT10 13 +#define R_SPARC_GOT13 14 +#define R_SPARC_GOT22 15 +#define R_SPARC_PC10 16 +#define R_SPARC_PC22 17 +#define R_SPARC_WPLT30 18 +#define R_SPARC_COPY 19 +#define R_SPARC_GLOB_DAT 20 +#define R_SPARC_JMP_SLOT 21 +#define R_SPARC_RELATIVE 22 +#define R_SPARC_UA32 23 +#define R_SPARC_PLT32 24 +#define R_SPARC_HIPLT22 25 +#define R_SPARC_LOPLT10 26 +#define R_SPARC_PCPLT32 27 +#define R_SPARC_PCPLT22 28 +#define R_SPARC_PCPLT10 29 +#define R_SPARC_10 30 +#define R_SPARC_11 31 +#define R_SPARC_64 32 +#define R_SPARC_OLO10 33 +#define R_SPARC_WDISP16 40 +#define R_SPARC_WDISP19 41 +#define R_SPARC_7 43 +#define R_SPARC_5 44 +#define R_SPARC_6 45 + +/* Bits present in AT_HWCAP, primarily for Sparc32. */ + +#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */ +#define HWCAP_SPARC_STBAR 2 +#define HWCAP_SPARC_SWAP 4 +#define HWCAP_SPARC_MULDIV 8 +#define HWCAP_SPARC_V9 16 +#define HWCAP_SPARC_ULTRA3 32 + +#define CORE_DUMP_USE_REGSET + +/* Format is: + * G0 --> G7 + * O0 --> O7 + * L0 --> L7 + * I0 --> I7 + * PSR, PC, nPC, Y, WIM, TBR + */ +typedef unsigned long elf_greg_t; +#define ELF_NGREG 38 +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef struct { + union { + unsigned long pr_regs[32]; + double pr_dregs[16]; + } pr_fr; + unsigned long __unused; + unsigned long pr_fsr; + unsigned char pr_qcnt; + unsigned char pr_q_entrysize; + unsigned char pr_en; + unsigned int pr_q[64]; +} elf_fpregset_t; + +#include + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ((x)->e_machine == EM_SPARC) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_ARCH EM_SPARC +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2MSB + +#define USE_ELF_CORE_DUMP +#ifndef CONFIG_SUN4 +#define ELF_EXEC_PAGESIZE 4096 +#else +#define ELF_EXEC_PAGESIZE 8192 +#endif + + +/* This is the location that an ET_DYN program is loaded if exec'ed. Typical + use of this is to invoke "./ld.so someprog" to test out a new version of + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) + +/* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. This can NOT be done in userspace + on Sparc. */ + +/* Sun4c has none of the capabilities, most sun4m's have them all. + * XXX This is gross, set some global variable at boot time. -DaveM + */ +#define ELF_HWCAP ((ARCH_SUN4C_SUN4) ? 0 : \ + (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \ + HWCAP_SPARC_SWAP | \ + ((srmmu_modtype != Cypress && \ + srmmu_modtype != Cypress_vE && \ + srmmu_modtype != Cypress_vD) ? \ + HWCAP_SPARC_MULDIV : 0))) + +/* This yields a string that ld.so will use to load implementation + specific libraries for optimization. This is more specific in + intent than poking at uname or /proc/cpuinfo. */ + +#define ELF_PLATFORM (NULL) + +#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) + +#endif /* !(__ASMSPARC_ELF_H) */ diff --git a/include/asm-sparc/elf_64.h b/include/asm-sparc/elf_64.h new file mode 100644 index 000000000000..0818a1308f4e --- /dev/null +++ b/include/asm-sparc/elf_64.h @@ -0,0 +1,217 @@ +#ifndef __ASM_SPARC64_ELF_H +#define __ASM_SPARC64_ELF_H + +/* + * ELF register definitions.. + */ + +#include +#include +#include +#include + +/* + * Sparc section types + */ +#define STT_REGISTER 13 + +/* + * Sparc ELF relocation types + */ +#define R_SPARC_NONE 0 +#define R_SPARC_8 1 +#define R_SPARC_16 2 +#define R_SPARC_32 3 +#define R_SPARC_DISP8 4 +#define R_SPARC_DISP16 5 +#define R_SPARC_DISP32 6 +#define R_SPARC_WDISP30 7 +#define R_SPARC_WDISP22 8 +#define R_SPARC_HI22 9 +#define R_SPARC_22 10 +#define R_SPARC_13 11 +#define R_SPARC_LO10 12 +#define R_SPARC_GOT10 13 +#define R_SPARC_GOT13 14 +#define R_SPARC_GOT22 15 +#define R_SPARC_PC10 16 +#define R_SPARC_PC22 17 +#define R_SPARC_WPLT30 18 +#define R_SPARC_COPY 19 +#define R_SPARC_GLOB_DAT 20 +#define R_SPARC_JMP_SLOT 21 +#define R_SPARC_RELATIVE 22 +#define R_SPARC_UA32 23 +#define R_SPARC_PLT32 24 +#define R_SPARC_HIPLT22 25 +#define R_SPARC_LOPLT10 26 +#define R_SPARC_PCPLT32 27 +#define R_SPARC_PCPLT22 28 +#define R_SPARC_PCPLT10 29 +#define R_SPARC_10 30 +#define R_SPARC_11 31 +#define R_SPARC_64 32 +#define R_SPARC_OLO10 33 +#define R_SPARC_WDISP16 40 +#define R_SPARC_WDISP19 41 +#define R_SPARC_7 43 +#define R_SPARC_5 44 +#define R_SPARC_6 45 + +/* Bits present in AT_HWCAP, primarily for Sparc32. */ + +#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */ +#define HWCAP_SPARC_STBAR 2 +#define HWCAP_SPARC_SWAP 4 +#define HWCAP_SPARC_MULDIV 8 +#define HWCAP_SPARC_V9 16 +#define HWCAP_SPARC_ULTRA3 32 +#define HWCAP_SPARC_BLKINIT 64 +#define HWCAP_SPARC_N2 128 + +#define CORE_DUMP_USE_REGSET + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_ARCH EM_SPARCV9 +#define ELF_CLASS ELFCLASS64 +#define ELF_DATA ELFDATA2MSB + +/* Format of 64-bit elf_gregset_t is: + * G0 --> G7 + * O0 --> O7 + * L0 --> L7 + * I0 --> I7 + * TSTATE + * TPC + * TNPC + * Y + */ +typedef unsigned long elf_greg_t; +#define ELF_NGREG 36 +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef struct { + unsigned long pr_regs[32]; + unsigned long pr_fsr; + unsigned long pr_gsr; + unsigned long pr_fprs; +} elf_fpregset_t; + +/* Format of 32-bit elf_gregset_t is: + * G0 --> G7 + * O0 --> O7 + * L0 --> L7 + * I0 --> I7 + * PSR, PC, nPC, Y, WIM, TBR + */ +typedef unsigned int compat_elf_greg_t; +#define COMPAT_ELF_NGREG 38 +typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; + +typedef struct { + union { + unsigned int pr_regs[32]; + unsigned long pr_dregs[16]; + } pr_fr; + unsigned int __unused; + unsigned int pr_fsr; + unsigned char pr_qcnt; + unsigned char pr_q_entrysize; + unsigned char pr_en; + unsigned int pr_q[64]; +} compat_elf_fpregset_t; + +/* UltraSparc extensions. Still unused, but will be eventually. */ +typedef struct { + unsigned int pr_type; + unsigned int pr_align; + union { + struct { + union { + unsigned int pr_regs[32]; + unsigned long pr_dregs[16]; + long double pr_qregs[8]; + } pr_xfr; + } pr_v8p; + unsigned int pr_xfsr; + unsigned int pr_fprs; + unsigned int pr_xg[8]; + unsigned int pr_xo[8]; + unsigned long pr_tstate; + unsigned int pr_filler[8]; + } pr_un; +} elf_xregset_t; + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) +#define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \ + (x)->e_machine == EM_SPARC32PLUS) +#define compat_start_thread start_thread32 + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE PAGE_SIZE + +/* This is the location that an ET_DYN program is loaded if exec'ed. Typical + use of this is to invoke "./ld.so someprog" to test out a new version of + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +#define ELF_ET_DYN_BASE 0x0000010000000000UL +#define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL + + +/* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. */ + +/* On Ultra, we support all of the v8 capabilities. */ +static inline unsigned int sparc64_elf_hwcap(void) +{ + unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | + HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | + HWCAP_SPARC_V9); + + if (tlb_type == cheetah || tlb_type == cheetah_plus) + cap |= HWCAP_SPARC_ULTRA3; + else if (tlb_type == hypervisor) { + if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || + sun4v_chip_type == SUN4V_CHIP_NIAGARA2) + cap |= HWCAP_SPARC_BLKINIT; + if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2) + cap |= HWCAP_SPARC_N2; + } + + return cap; +} + +#define ELF_HWCAP sparc64_elf_hwcap(); + +/* This yields a string that ld.so will use to load implementation + specific libraries for optimization. This is more specific in + intent than poking at uname or /proc/cpuinfo. */ + +#define ELF_PLATFORM (NULL) + +#define SET_PERSONALITY(ex, ibcs2) \ +do { unsigned long new_flags = current_thread_info()->flags; \ + new_flags &= _TIF_32BIT; \ + if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ + new_flags |= _TIF_32BIT; \ + else \ + new_flags &= ~_TIF_32BIT; \ + if ((current_thread_info()->flags & _TIF_32BIT) \ + != new_flags) \ + set_thread_flag(TIF_ABI_PENDING); \ + else \ + clear_thread_flag(TIF_ABI_PENDING); \ + /* flush_thread will update pgd cache */ \ + if (ibcs2) \ + set_personality(PER_SVR4); \ + else if (current->personality != PER_LINUX32) \ + set_personality(PER_LINUX); \ +} while (0) + +#endif /* !(__ASM_SPARC64_ELF_H) */ diff --git a/include/asm-sparc/floppy.h b/include/asm-sparc/floppy.h index d3978e068e2b..6c628ba15a8d 100644 --- a/include/asm-sparc/floppy.h +++ b/include/asm-sparc/floppy.h @@ -1,388 +1,8 @@ -/* asm-sparc/floppy.h: Sparc specific parts of the Floppy driver. - * - * Copyright (C) 1995 David S. Miller (davem@davemloft.net) - */ - -#ifndef __ASM_SPARC_FLOPPY_H -#define __ASM_SPARC_FLOPPY_H - -#include -#include -#include -#include -#include -#include -#include -#include - -/* We don't need no stinkin' I/O port allocation crap. */ -#undef release_region -#undef request_region -#define release_region(X, Y) do { } while(0) -#define request_region(X, Y, Z) (1) - -/* References: - * 1) Netbsd Sun floppy driver. - * 2) NCR 82077 controller manual - * 3) Intel 82077 controller manual - */ -struct sun_flpy_controller { - volatile unsigned char status_82072; /* Main Status reg. */ -#define dcr_82072 status_82072 /* Digital Control reg. */ -#define status1_82077 status_82072 /* Auxiliary Status reg. 1 */ - - volatile unsigned char data_82072; /* Data fifo. */ -#define status2_82077 data_82072 /* Auxiliary Status reg. 2 */ - - volatile unsigned char dor_82077; /* Digital Output reg. */ - volatile unsigned char tapectl_82077; /* What the? Tape control reg? */ - - volatile unsigned char status_82077; /* Main Status Register. */ -#define drs_82077 status_82077 /* Digital Rate Select reg. */ - - volatile unsigned char data_82077; /* Data fifo. */ - volatile unsigned char ___unused; - volatile unsigned char dir_82077; /* Digital Input reg. */ -#define dcr_82077 dir_82077 /* Config Control reg. */ -}; - -/* You'll only ever find one controller on a SparcStation anyways. */ -static struct sun_flpy_controller *sun_fdc = NULL; -extern volatile unsigned char *fdc_status; - -struct sun_floppy_ops { - unsigned char (*fd_inb)(int port); - void (*fd_outb)(unsigned char value, int port); -}; - -static struct sun_floppy_ops sun_fdops; - -#define fd_inb(port) sun_fdops.fd_inb(port) -#define fd_outb(value,port) sun_fdops.fd_outb(value,port) -#define fd_enable_dma() sun_fd_enable_dma() -#define fd_disable_dma() sun_fd_disable_dma() -#define fd_request_dma() (0) /* nothing... */ -#define fd_free_dma() /* nothing... */ -#define fd_clear_dma_ff() /* nothing... */ -#define fd_set_dma_mode(mode) sun_fd_set_dma_mode(mode) -#define fd_set_dma_addr(addr) sun_fd_set_dma_addr(addr) -#define fd_set_dma_count(count) sun_fd_set_dma_count(count) -#define fd_enable_irq() /* nothing... */ -#define fd_disable_irq() /* nothing... */ -#define fd_cacheflush(addr, size) /* nothing... */ -#define fd_request_irq() sun_fd_request_irq() -#define fd_free_irq() /* nothing... */ -#if 0 /* P3: added by Alain, these cause a MMU corruption. 19960524 XXX */ -#define fd_dma_mem_alloc(size) ((unsigned long) vmalloc(size)) -#define fd_dma_mem_free(addr,size) (vfree((void *)(addr))) +#ifndef ___ASM_SPARC_FLOPPY_H +#define ___ASM_SPARC_FLOPPY_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -/* XXX This isn't really correct. XXX */ -#define get_dma_residue(x) (0) - -#define FLOPPY0_TYPE 4 -#define FLOPPY1_TYPE 0 - -/* Super paranoid... */ -#undef HAVE_DISABLE_HLT - -/* Here is where we catch the floppy driver trying to initialize, - * therefore this is where we call the PROM device tree probing - * routine etc. on the Sparc. - */ -#define FDC1 sun_floppy_init() - -#define N_FDC 1 -#define N_DRIVE 8 - -/* No 64k boundary crossing problems on the Sparc. */ -#define CROSS_64KB(a,s) (0) - -/* Routines unique to each controller type on a Sun. */ -static void sun_set_dor(unsigned char value, int fdc_82077) -{ - if (sparc_cpu_model == sun4c) { - unsigned int bits = 0; - if (value & 0x10) - bits |= AUXIO_FLPY_DSEL; - if ((value & 0x80) == 0) - bits |= AUXIO_FLPY_EJCT; - set_auxio(bits, (~bits) & (AUXIO_FLPY_DSEL|AUXIO_FLPY_EJCT)); - } - if (fdc_82077) { - sun_fdc->dor_82077 = value; - } -} - -static unsigned char sun_read_dir(void) -{ - if (sparc_cpu_model == sun4c) - return (get_auxio() & AUXIO_FLPY_DCHG) ? 0x80 : 0; - else - return sun_fdc->dir_82077; -} - -static unsigned char sun_82072_fd_inb(int port) -{ - udelay(5); - switch(port & 7) { - default: - printk("floppy: Asked to read unknown port %d\n", port); - panic("floppy: Port bolixed."); - case 4: /* FD_STATUS */ - return sun_fdc->status_82072 & ~STATUS_DMA; - case 5: /* FD_DATA */ - return sun_fdc->data_82072; - case 7: /* FD_DIR */ - return sun_read_dir(); - }; - panic("sun_82072_fd_inb: How did I get here?"); -} - -static void sun_82072_fd_outb(unsigned char value, int port) -{ - udelay(5); - switch(port & 7) { - default: - printk("floppy: Asked to write to unknown port %d\n", port); - panic("floppy: Port bolixed."); - case 2: /* FD_DOR */ - sun_set_dor(value, 0); - break; - case 5: /* FD_DATA */ - sun_fdc->data_82072 = value; - break; - case 7: /* FD_DCR */ - sun_fdc->dcr_82072 = value; - break; - case 4: /* FD_STATUS */ - sun_fdc->status_82072 = value; - break; - }; - return; -} - -static unsigned char sun_82077_fd_inb(int port) -{ - udelay(5); - switch(port & 7) { - default: - printk("floppy: Asked to read unknown port %d\n", port); - panic("floppy: Port bolixed."); - case 0: /* FD_STATUS_0 */ - return sun_fdc->status1_82077; - case 1: /* FD_STATUS_1 */ - return sun_fdc->status2_82077; - case 2: /* FD_DOR */ - return sun_fdc->dor_82077; - case 3: /* FD_TDR */ - return sun_fdc->tapectl_82077; - case 4: /* FD_STATUS */ - return sun_fdc->status_82077 & ~STATUS_DMA; - case 5: /* FD_DATA */ - return sun_fdc->data_82077; - case 7: /* FD_DIR */ - return sun_read_dir(); - }; - panic("sun_82077_fd_inb: How did I get here?"); -} - -static void sun_82077_fd_outb(unsigned char value, int port) -{ - udelay(5); - switch(port & 7) { - default: - printk("floppy: Asked to write to unknown port %d\n", port); - panic("floppy: Port bolixed."); - case 2: /* FD_DOR */ - sun_set_dor(value, 1); - break; - case 5: /* FD_DATA */ - sun_fdc->data_82077 = value; - break; - case 7: /* FD_DCR */ - sun_fdc->dcr_82077 = value; - break; - case 4: /* FD_STATUS */ - sun_fdc->status_82077 = value; - break; - case 3: /* FD_TDR */ - sun_fdc->tapectl_82077 = value; - break; - }; - return; -} - -/* For pseudo-dma (Sun floppy drives have no real DMA available to - * them so we must eat the data fifo bytes directly ourselves) we have - * three state variables. doing_pdma tells our inline low-level - * assembly floppy interrupt entry point whether it should sit and eat - * bytes from the fifo or just transfer control up to the higher level - * floppy interrupt c-code. I tried very hard but I could not get the - * pseudo-dma to work in c-code without getting many overruns and - * underruns. If non-zero, doing_pdma encodes the direction of - * the transfer for debugging. 1=read 2=write - */ -extern char *pdma_vaddr; -extern unsigned long pdma_size; -extern volatile int doing_pdma; - -/* This is software state */ -extern char *pdma_base; -extern unsigned long pdma_areasize; - -/* Common routines to all controller types on the Sparc. */ -static inline void virtual_dma_init(void) -{ - /* nothing... */ -} - -static inline void sun_fd_disable_dma(void) -{ - doing_pdma = 0; - if (pdma_base) { - mmu_unlockarea(pdma_base, pdma_areasize); - pdma_base = NULL; - } -} - -static inline void sun_fd_set_dma_mode(int mode) -{ - switch(mode) { - case DMA_MODE_READ: - doing_pdma = 1; - break; - case DMA_MODE_WRITE: - doing_pdma = 2; - break; - default: - printk("Unknown dma mode %d\n", mode); - panic("floppy: Giving up..."); - } -} - -static inline void sun_fd_set_dma_addr(char *buffer) -{ - pdma_vaddr = buffer; -} - -static inline void sun_fd_set_dma_count(int length) -{ - pdma_size = length; -} - -static inline void sun_fd_enable_dma(void) -{ - pdma_vaddr = mmu_lockarea(pdma_vaddr, pdma_size); - pdma_base = pdma_vaddr; - pdma_areasize = pdma_size; -} - -/* Our low-level entry point in arch/sparc/kernel/entry.S */ -extern int sparc_floppy_request_irq(int irq, unsigned long flags, - irq_handler_t irq_handler); - -static int sun_fd_request_irq(void) -{ - static int once = 0; - int error; - - if(!once) { - once = 1; - error = sparc_floppy_request_irq(FLOPPY_IRQ, - IRQF_DISABLED, - floppy_interrupt); - return ((error == 0) ? 0 : -1); - } else return 0; -} - -static struct linux_prom_registers fd_regs[2]; - -static int sun_floppy_init(void) -{ - char state[128]; - int tnode, fd_node, num_regs; - struct resource r; - - use_virtual_dma = 1; - - FLOPPY_IRQ = 11; - /* Forget it if we aren't on a machine that could possibly - * ever have a floppy drive. - */ - if((sparc_cpu_model != sun4c && sparc_cpu_model != sun4m) || - ((idprom->id_machtype == (SM_SUN4C | SM_4C_SLC)) || - (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC)))) { - /* We certainly don't have a floppy controller. */ - goto no_sun_fdc; - } - /* Well, try to find one. */ - tnode = prom_getchild(prom_root_node); - fd_node = prom_searchsiblings(tnode, "obio"); - if(fd_node != 0) { - tnode = prom_getchild(fd_node); - fd_node = prom_searchsiblings(tnode, "SUNW,fdtwo"); - } else { - fd_node = prom_searchsiblings(tnode, "fd"); - } - if(fd_node == 0) { - goto no_sun_fdc; - } - - /* The sun4m lets us know if the controller is actually usable. */ - if(sparc_cpu_model == sun4m && - prom_getproperty(fd_node, "status", state, sizeof(state)) != -1) { - if(!strcmp(state, "disabled")) { - goto no_sun_fdc; - } - } - num_regs = prom_getproperty(fd_node, "reg", (char *) fd_regs, sizeof(fd_regs)); - num_regs = (num_regs / sizeof(fd_regs[0])); - prom_apply_obio_ranges(fd_regs, num_regs); - memset(&r, 0, sizeof(r)); - r.flags = fd_regs[0].which_io; - r.start = fd_regs[0].phys_addr; - sun_fdc = (struct sun_flpy_controller *) - sbus_ioremap(&r, 0, fd_regs[0].reg_size, "floppy"); - - /* Last minute sanity check... */ - if(sun_fdc->status_82072 == 0xff) { - sun_fdc = NULL; - goto no_sun_fdc; - } - - sun_fdops.fd_inb = sun_82077_fd_inb; - sun_fdops.fd_outb = sun_82077_fd_outb; - fdc_status = &sun_fdc->status_82077; - - if (sun_fdc->dor_82077 == 0x80) { - sun_fdc->dor_82077 = 0x02; - if (sun_fdc->dor_82077 == 0x80) { - sun_fdops.fd_inb = sun_82072_fd_inb; - sun_fdops.fd_outb = sun_82072_fd_outb; - fdc_status = &sun_fdc->status_82072; - } - } - - /* Success... */ - allowed_drive_mask = 0x01; - return (int) sun_fdc; - -no_sun_fdc: - return -1; -} - -static int sparc_eject(void) -{ - set_dor(0x00, 0xff, 0x90); - udelay(500); - set_dor(0x00, 0x6f, 0x00); - udelay(500); - return 0; -} - -#define fd_eject(drive) sparc_eject() - -#define EXTRA_FLOPPY_PARAMS - -#endif /* !(__ASM_SPARC_FLOPPY_H) */ diff --git a/include/asm-sparc/floppy_32.h b/include/asm-sparc/floppy_32.h new file mode 100644 index 000000000000..acdd06eafe59 --- /dev/null +++ b/include/asm-sparc/floppy_32.h @@ -0,0 +1,388 @@ +/* asm-sparc/floppy.h: Sparc specific parts of the Floppy driver. + * + * Copyright (C) 1995 David S. Miller (davem@davemloft.net) + */ + +#ifndef __ASM_SPARC_FLOPPY_H +#define __ASM_SPARC_FLOPPY_H + +#include +#include +#include +#include +#include +#include +#include +#include + +/* We don't need no stinkin' I/O port allocation crap. */ +#undef release_region +#undef request_region +#define release_region(X, Y) do { } while(0) +#define request_region(X, Y, Z) (1) + +/* References: + * 1) Netbsd Sun floppy driver. + * 2) NCR 82077 controller manual + * 3) Intel 82077 controller manual + */ +struct sun_flpy_controller { + volatile unsigned char status_82072; /* Main Status reg. */ +#define dcr_82072 status_82072 /* Digital Control reg. */ +#define status1_82077 status_82072 /* Auxiliary Status reg. 1 */ + + volatile unsigned char data_82072; /* Data fifo. */ +#define status2_82077 data_82072 /* Auxiliary Status reg. 2 */ + + volatile unsigned char dor_82077; /* Digital Output reg. */ + volatile unsigned char tapectl_82077; /* What the? Tape control reg? */ + + volatile unsigned char status_82077; /* Main Status Register. */ +#define drs_82077 status_82077 /* Digital Rate Select reg. */ + + volatile unsigned char data_82077; /* Data fifo. */ + volatile unsigned char ___unused; + volatile unsigned char dir_82077; /* Digital Input reg. */ +#define dcr_82077 dir_82077 /* Config Control reg. */ +}; + +/* You'll only ever find one controller on a SparcStation anyways. */ +static struct sun_flpy_controller *sun_fdc = NULL; +extern volatile unsigned char *fdc_status; + +struct sun_floppy_ops { + unsigned char (*fd_inb)(int port); + void (*fd_outb)(unsigned char value, int port); +}; + +static struct sun_floppy_ops sun_fdops; + +#define fd_inb(port) sun_fdops.fd_inb(port) +#define fd_outb(value,port) sun_fdops.fd_outb(value,port) +#define fd_enable_dma() sun_fd_enable_dma() +#define fd_disable_dma() sun_fd_disable_dma() +#define fd_request_dma() (0) /* nothing... */ +#define fd_free_dma() /* nothing... */ +#define fd_clear_dma_ff() /* nothing... */ +#define fd_set_dma_mode(mode) sun_fd_set_dma_mode(mode) +#define fd_set_dma_addr(addr) sun_fd_set_dma_addr(addr) +#define fd_set_dma_count(count) sun_fd_set_dma_count(count) +#define fd_enable_irq() /* nothing... */ +#define fd_disable_irq() /* nothing... */ +#define fd_cacheflush(addr, size) /* nothing... */ +#define fd_request_irq() sun_fd_request_irq() +#define fd_free_irq() /* nothing... */ +#if 0 /* P3: added by Alain, these cause a MMU corruption. 19960524 XXX */ +#define fd_dma_mem_alloc(size) ((unsigned long) vmalloc(size)) +#define fd_dma_mem_free(addr,size) (vfree((void *)(addr))) +#endif + +/* XXX This isn't really correct. XXX */ +#define get_dma_residue(x) (0) + +#define FLOPPY0_TYPE 4 +#define FLOPPY1_TYPE 0 + +/* Super paranoid... */ +#undef HAVE_DISABLE_HLT + +/* Here is where we catch the floppy driver trying to initialize, + * therefore this is where we call the PROM device tree probing + * routine etc. on the Sparc. + */ +#define FDC1 sun_floppy_init() + +#define N_FDC 1 +#define N_DRIVE 8 + +/* No 64k boundary crossing problems on the Sparc. */ +#define CROSS_64KB(a,s) (0) + +/* Routines unique to each controller type on a Sun. */ +static void sun_set_dor(unsigned char value, int fdc_82077) +{ + if (sparc_cpu_model == sun4c) { + unsigned int bits = 0; + if (value & 0x10) + bits |= AUXIO_FLPY_DSEL; + if ((value & 0x80) == 0) + bits |= AUXIO_FLPY_EJCT; + set_auxio(bits, (~bits) & (AUXIO_FLPY_DSEL|AUXIO_FLPY_EJCT)); + } + if (fdc_82077) { + sun_fdc->dor_82077 = value; + } +} + +static unsigned char sun_read_dir(void) +{ + if (sparc_cpu_model == sun4c) + return (get_auxio() & AUXIO_FLPY_DCHG) ? 0x80 : 0; + else + return sun_fdc->dir_82077; +} + +static unsigned char sun_82072_fd_inb(int port) +{ + udelay(5); + switch(port & 7) { + default: + printk("floppy: Asked to read unknown port %d\n", port); + panic("floppy: Port bolixed."); + case 4: /* FD_STATUS */ + return sun_fdc->status_82072 & ~STATUS_DMA; + case 5: /* FD_DATA */ + return sun_fdc->data_82072; + case 7: /* FD_DIR */ + return sun_read_dir(); + }; + panic("sun_82072_fd_inb: How did I get here?"); +} + +static void sun_82072_fd_outb(unsigned char value, int port) +{ + udelay(5); + switch(port & 7) { + default: + printk("floppy: Asked to write to unknown port %d\n", port); + panic("floppy: Port bolixed."); + case 2: /* FD_DOR */ + sun_set_dor(value, 0); + break; + case 5: /* FD_DATA */ + sun_fdc->data_82072 = value; + break; + case 7: /* FD_DCR */ + sun_fdc->dcr_82072 = value; + break; + case 4: /* FD_STATUS */ + sun_fdc->status_82072 = value; + break; + }; + return; +} + +static unsigned char sun_82077_fd_inb(int port) +{ + udelay(5); + switch(port & 7) { + default: + printk("floppy: Asked to read unknown port %d\n", port); + panic("floppy: Port bolixed."); + case 0: /* FD_STATUS_0 */ + return sun_fdc->status1_82077; + case 1: /* FD_STATUS_1 */ + return sun_fdc->status2_82077; + case 2: /* FD_DOR */ + return sun_fdc->dor_82077; + case 3: /* FD_TDR */ + return sun_fdc->tapectl_82077; + case 4: /* FD_STATUS */ + return sun_fdc->status_82077 & ~STATUS_DMA; + case 5: /* FD_DATA */ + return sun_fdc->data_82077; + case 7: /* FD_DIR */ + return sun_read_dir(); + }; + panic("sun_82077_fd_inb: How did I get here?"); +} + +static void sun_82077_fd_outb(unsigned char value, int port) +{ + udelay(5); + switch(port & 7) { + default: + printk("floppy: Asked to write to unknown port %d\n", port); + panic("floppy: Port bolixed."); + case 2: /* FD_DOR */ + sun_set_dor(value, 1); + break; + case 5: /* FD_DATA */ + sun_fdc->data_82077 = value; + break; + case 7: /* FD_DCR */ + sun_fdc->dcr_82077 = value; + break; + case 4: /* FD_STATUS */ + sun_fdc->status_82077 = value; + break; + case 3: /* FD_TDR */ + sun_fdc->tapectl_82077 = value; + break; + }; + return; +} + +/* For pseudo-dma (Sun floppy drives have no real DMA available to + * them so we must eat the data fifo bytes directly ourselves) we have + * three state variables. doing_pdma tells our inline low-level + * assembly floppy interrupt entry point whether it should sit and eat + * bytes from the fifo or just transfer control up to the higher level + * floppy interrupt c-code. I tried very hard but I could not get the + * pseudo-dma to work in c-code without getting many overruns and + * underruns. If non-zero, doing_pdma encodes the direction of + * the transfer for debugging. 1=read 2=write + */ +extern char *pdma_vaddr; +extern unsigned long pdma_size; +extern volatile int doing_pdma; + +/* This is software state */ +extern char *pdma_base; +extern unsigned long pdma_areasize; + +/* Common routines to all controller types on the Sparc. */ +static inline void virtual_dma_init(void) +{ + /* nothing... */ +} + +static inline void sun_fd_disable_dma(void) +{ + doing_pdma = 0; + if (pdma_base) { + mmu_unlockarea(pdma_base, pdma_areasize); + pdma_base = NULL; + } +} + +static inline void sun_fd_set_dma_mode(int mode) +{ + switch(mode) { + case DMA_MODE_READ: + doing_pdma = 1; + break; + case DMA_MODE_WRITE: + doing_pdma = 2; + break; + default: + printk("Unknown dma mode %d\n", mode); + panic("floppy: Giving up..."); + } +} + +static inline void sun_fd_set_dma_addr(char *buffer) +{ + pdma_vaddr = buffer; +} + +static inline void sun_fd_set_dma_count(int length) +{ + pdma_size = length; +} + +static inline void sun_fd_enable_dma(void) +{ + pdma_vaddr = mmu_lockarea(pdma_vaddr, pdma_size); + pdma_base = pdma_vaddr; + pdma_areasize = pdma_size; +} + +/* Our low-level entry point in arch/sparc/kernel/entry.S */ +extern int sparc_floppy_request_irq(int irq, unsigned long flags, + irq_handler_t irq_handler); + +static int sun_fd_request_irq(void) +{ + static int once = 0; + int error; + + if(!once) { + once = 1; + error = sparc_floppy_request_irq(FLOPPY_IRQ, + IRQF_DISABLED, + floppy_interrupt); + return ((error == 0) ? 0 : -1); + } else return 0; +} + +static struct linux_prom_registers fd_regs[2]; + +static int sun_floppy_init(void) +{ + char state[128]; + int tnode, fd_node, num_regs; + struct resource r; + + use_virtual_dma = 1; + + FLOPPY_IRQ = 11; + /* Forget it if we aren't on a machine that could possibly + * ever have a floppy drive. + */ + if((sparc_cpu_model != sun4c && sparc_cpu_model != sun4m) || + ((idprom->id_machtype == (SM_SUN4C | SM_4C_SLC)) || + (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC)))) { + /* We certainly don't have a floppy controller. */ + goto no_sun_fdc; + } + /* Well, try to find one. */ + tnode = prom_getchild(prom_root_node); + fd_node = prom_searchsiblings(tnode, "obio"); + if(fd_node != 0) { + tnode = prom_getchild(fd_node); + fd_node = prom_searchsiblings(tnode, "SUNW,fdtwo"); + } else { + fd_node = prom_searchsiblings(tnode, "fd"); + } + if(fd_node == 0) { + goto no_sun_fdc; + } + + /* The sun4m lets us know if the controller is actually usable. */ + if(sparc_cpu_model == sun4m && + prom_getproperty(fd_node, "status", state, sizeof(state)) != -1) { + if(!strcmp(state, "disabled")) { + goto no_sun_fdc; + } + } + num_regs = prom_getproperty(fd_node, "reg", (char *) fd_regs, sizeof(fd_regs)); + num_regs = (num_regs / sizeof(fd_regs[0])); + prom_apply_obio_ranges(fd_regs, num_regs); + memset(&r, 0, sizeof(r)); + r.flags = fd_regs[0].which_io; + r.start = fd_regs[0].phys_addr; + sun_fdc = (struct sun_flpy_controller *) + sbus_ioremap(&r, 0, fd_regs[0].reg_size, "floppy"); + + /* Last minute sanity check... */ + if(sun_fdc->status_82072 == 0xff) { + sun_fdc = NULL; + goto no_sun_fdc; + } + + sun_fdops.fd_inb = sun_82077_fd_inb; + sun_fdops.fd_outb = sun_82077_fd_outb; + fdc_status = &sun_fdc->status_82077; + + if (sun_fdc->dor_82077 == 0x80) { + sun_fdc->dor_82077 = 0x02; + if (sun_fdc->dor_82077 == 0x80) { + sun_fdops.fd_inb = sun_82072_fd_inb; + sun_fdops.fd_outb = sun_82072_fd_outb; + fdc_status = &sun_fdc->status_82072; + } + } + + /* Success... */ + allowed_drive_mask = 0x01; + return (int) sun_fdc; + +no_sun_fdc: + return -1; +} + +static int sparc_eject(void) +{ + set_dor(0x00, 0xff, 0x90); + udelay(500); + set_dor(0x00, 0x6f, 0x00); + udelay(500); + return 0; +} + +#define fd_eject(drive) sparc_eject() + +#define EXTRA_FLOPPY_PARAMS + +#endif /* !(__ASM_SPARC_FLOPPY_H) */ diff --git a/include/asm-sparc/floppy_64.h b/include/asm-sparc/floppy_64.h new file mode 100644 index 000000000000..c39db1060bc7 --- /dev/null +++ b/include/asm-sparc/floppy_64.h @@ -0,0 +1,782 @@ +/* floppy.h: Sparc specific parts of the Floppy driver. + * + * Copyright (C) 1996, 2007 David S. Miller (davem@davemloft.net) + * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + * + * Ultra/PCI support added: Sep 1997 Eddie C. Dost (ecd@skynet.be) + */ + +#ifndef __ASM_SPARC64_FLOPPY_H +#define __ASM_SPARC64_FLOPPY_H + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + + +/* + * Define this to enable exchanging drive 0 and 1 if only drive 1 is + * probed on PCI machines. + */ +#undef PCI_FDC_SWAP_DRIVES + + +/* References: + * 1) Netbsd Sun floppy driver. + * 2) NCR 82077 controller manual + * 3) Intel 82077 controller manual + */ +struct sun_flpy_controller { + volatile unsigned char status1_82077; /* Auxiliary Status reg. 1 */ + volatile unsigned char status2_82077; /* Auxiliary Status reg. 2 */ + volatile unsigned char dor_82077; /* Digital Output reg. */ + volatile unsigned char tapectl_82077; /* Tape Control reg */ + volatile unsigned char status_82077; /* Main Status Register. */ +#define drs_82077 status_82077 /* Digital Rate Select reg. */ + volatile unsigned char data_82077; /* Data fifo. */ + volatile unsigned char ___unused; + volatile unsigned char dir_82077; /* Digital Input reg. */ +#define dcr_82077 dir_82077 /* Config Control reg. */ +}; + +/* You'll only ever find one controller on an Ultra anyways. */ +static struct sun_flpy_controller *sun_fdc = (struct sun_flpy_controller *)-1; +unsigned long fdc_status; +static struct sbus_dev *floppy_sdev = NULL; + +struct sun_floppy_ops { + unsigned char (*fd_inb) (unsigned long port); + void (*fd_outb) (unsigned char value, unsigned long port); + void (*fd_enable_dma) (void); + void (*fd_disable_dma) (void); + void (*fd_set_dma_mode) (int); + void (*fd_set_dma_addr) (char *); + void (*fd_set_dma_count) (int); + unsigned int (*get_dma_residue) (void); + int (*fd_request_irq) (void); + void (*fd_free_irq) (void); + int (*fd_eject) (int); +}; + +static struct sun_floppy_ops sun_fdops; + +#define fd_inb(port) sun_fdops.fd_inb(port) +#define fd_outb(value,port) sun_fdops.fd_outb(value,port) +#define fd_enable_dma() sun_fdops.fd_enable_dma() +#define fd_disable_dma() sun_fdops.fd_disable_dma() +#define fd_request_dma() (0) /* nothing... */ +#define fd_free_dma() /* nothing... */ +#define fd_clear_dma_ff() /* nothing... */ +#define fd_set_dma_mode(mode) sun_fdops.fd_set_dma_mode(mode) +#define fd_set_dma_addr(addr) sun_fdops.fd_set_dma_addr(addr) +#define fd_set_dma_count(count) sun_fdops.fd_set_dma_count(count) +#define get_dma_residue(x) sun_fdops.get_dma_residue() +#define fd_cacheflush(addr, size) /* nothing... */ +#define fd_request_irq() sun_fdops.fd_request_irq() +#define fd_free_irq() sun_fdops.fd_free_irq() +#define fd_eject(drive) sun_fdops.fd_eject(drive) + +/* Super paranoid... */ +#undef HAVE_DISABLE_HLT + +static int sun_floppy_types[2] = { 0, 0 }; + +/* Here is where we catch the floppy driver trying to initialize, + * therefore this is where we call the PROM device tree probing + * routine etc. on the Sparc. + */ +#define FLOPPY0_TYPE sun_floppy_init() +#define FLOPPY1_TYPE sun_floppy_types[1] + +#define FDC1 ((unsigned long)sun_fdc) + +#define N_FDC 1 +#define N_DRIVE 8 + +/* No 64k boundary crossing problems on the Sparc. */ +#define CROSS_64KB(a,s) (0) + +static unsigned char sun_82077_fd_inb(unsigned long port) +{ + udelay(5); + switch(port & 7) { + default: + printk("floppy: Asked to read unknown port %lx\n", port); + panic("floppy: Port bolixed."); + case 4: /* FD_STATUS */ + return sbus_readb(&sun_fdc->status_82077) & ~STATUS_DMA; + case 5: /* FD_DATA */ + return sbus_readb(&sun_fdc->data_82077); + case 7: /* FD_DIR */ + /* XXX: Is DCL on 0x80 in sun4m? */ + return sbus_readb(&sun_fdc->dir_82077); + }; + panic("sun_82072_fd_inb: How did I get here?"); +} + +static void sun_82077_fd_outb(unsigned char value, unsigned long port) +{ + udelay(5); + switch(port & 7) { + default: + printk("floppy: Asked to write to unknown port %lx\n", port); + panic("floppy: Port bolixed."); + case 2: /* FD_DOR */ + /* Happily, the 82077 has a real DOR register. */ + sbus_writeb(value, &sun_fdc->dor_82077); + break; + case 5: /* FD_DATA */ + sbus_writeb(value, &sun_fdc->data_82077); + break; + case 7: /* FD_DCR */ + sbus_writeb(value, &sun_fdc->dcr_82077); + break; + case 4: /* FD_STATUS */ + sbus_writeb(value, &sun_fdc->status_82077); + break; + }; + return; +} + +/* For pseudo-dma (Sun floppy drives have no real DMA available to + * them so we must eat the data fifo bytes directly ourselves) we have + * three state variables. doing_pdma tells our inline low-level + * assembly floppy interrupt entry point whether it should sit and eat + * bytes from the fifo or just transfer control up to the higher level + * floppy interrupt c-code. I tried very hard but I could not get the + * pseudo-dma to work in c-code without getting many overruns and + * underruns. If non-zero, doing_pdma encodes the direction of + * the transfer for debugging. 1=read 2=write + */ +unsigned char *pdma_vaddr; +unsigned long pdma_size; +volatile int doing_pdma = 0; + +/* This is software state */ +char *pdma_base = NULL; +unsigned long pdma_areasize; + +/* Common routines to all controller types on the Sparc. */ +static void sun_fd_disable_dma(void) +{ + doing_pdma = 0; + if (pdma_base) { + mmu_unlockarea(pdma_base, pdma_areasize); + pdma_base = NULL; + } +} + +static void sun_fd_set_dma_mode(int mode) +{ + switch(mode) { + case DMA_MODE_READ: + doing_pdma = 1; + break; + case DMA_MODE_WRITE: + doing_pdma = 2; + break; + default: + printk("Unknown dma mode %d\n", mode); + panic("floppy: Giving up..."); + } +} + +static void sun_fd_set_dma_addr(char *buffer) +{ + pdma_vaddr = buffer; +} + +static void sun_fd_set_dma_count(int length) +{ + pdma_size = length; +} + +static void sun_fd_enable_dma(void) +{ + pdma_vaddr = mmu_lockarea(pdma_vaddr, pdma_size); + pdma_base = pdma_vaddr; + pdma_areasize = pdma_size; +} + +irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie) +{ + if (likely(doing_pdma)) { + void __iomem *stat = (void __iomem *) fdc_status; + unsigned char *vaddr = pdma_vaddr; + unsigned long size = pdma_size; + u8 val; + + while (size) { + val = readb(stat); + if (unlikely(!(val & 0x80))) { + pdma_vaddr = vaddr; + pdma_size = size; + return IRQ_HANDLED; + } + if (unlikely(!(val & 0x20))) { + pdma_vaddr = vaddr; + pdma_size = size; + doing_pdma = 0; + goto main_interrupt; + } + if (val & 0x40) { + /* read */ + *vaddr++ = readb(stat + 1); + } else { + unsigned char data = *vaddr++; + + /* write */ + writeb(data, stat + 1); + } + size--; + } + + pdma_vaddr = vaddr; + pdma_size = size; + + /* Send Terminal Count pulse to floppy controller. */ + val = readb(auxio_register); + val |= AUXIO_AUX1_FTCNT; + writeb(val, auxio_register); + val &= ~AUXIO_AUX1_FTCNT; + writeb(val, auxio_register); + + doing_pdma = 0; + } + +main_interrupt: + return floppy_interrupt(irq, dev_cookie); +} + +static int sun_fd_request_irq(void) +{ + static int once = 0; + int error; + + if(!once) { + once = 1; + + error = request_irq(FLOPPY_IRQ, sparc_floppy_irq, + IRQF_DISABLED, "floppy", NULL); + + return ((error == 0) ? 0 : -1); + } + return 0; +} + +static void sun_fd_free_irq(void) +{ +} + +static unsigned int sun_get_dma_residue(void) +{ + /* XXX This isn't really correct. XXX */ + return 0; +} + +static int sun_fd_eject(int drive) +{ + set_dor(0x00, 0xff, 0x90); + udelay(500); + set_dor(0x00, 0x6f, 0x00); + udelay(500); + return 0; +} + +#ifdef CONFIG_PCI +#include +#include + +static struct ebus_dma_info sun_pci_fd_ebus_dma; +static struct pci_dev *sun_pci_ebus_dev; +static int sun_pci_broken_drive = -1; + +struct sun_pci_dma_op { + unsigned int addr; + int len; + int direction; + char *buf; +}; +static struct sun_pci_dma_op sun_pci_dma_current = { -1U, 0, 0, NULL}; +static struct sun_pci_dma_op sun_pci_dma_pending = { -1U, 0, 0, NULL}; + +extern irqreturn_t floppy_interrupt(int irq, void *dev_id); + +static unsigned char sun_pci_fd_inb(unsigned long port) +{ + udelay(5); + return inb(port); +} + +static void sun_pci_fd_outb(unsigned char val, unsigned long port) +{ + udelay(5); + outb(val, port); +} + +static void sun_pci_fd_broken_outb(unsigned char val, unsigned long port) +{ + udelay(5); + /* + * XXX: Due to SUN's broken floppy connector on AX and AXi + * we need to turn on MOTOR_0 also, if the floppy is + * jumpered to DS1 (like most PC floppies are). I hope + * this does not hurt correct hardware like the AXmp. + * (Eddie, Sep 12 1998). + */ + if (port == ((unsigned long)sun_fdc) + 2) { + if (((val & 0x03) == sun_pci_broken_drive) && (val & 0x20)) { + val |= 0x10; + } + } + outb(val, port); +} + +#ifdef PCI_FDC_SWAP_DRIVES +static void sun_pci_fd_lde_broken_outb(unsigned char val, unsigned long port) +{ + udelay(5); + /* + * XXX: Due to SUN's broken floppy connector on AX and AXi + * we need to turn on MOTOR_0 also, if the floppy is + * jumpered to DS1 (like most PC floppies are). I hope + * this does not hurt correct hardware like the AXmp. + * (Eddie, Sep 12 1998). + */ + if (port == ((unsigned long)sun_fdc) + 2) { + if (((val & 0x03) == sun_pci_broken_drive) && (val & 0x10)) { + val &= ~(0x03); + val |= 0x21; + } + } + outb(val, port); +} +#endif /* PCI_FDC_SWAP_DRIVES */ + +static void sun_pci_fd_enable_dma(void) +{ + BUG_ON((NULL == sun_pci_dma_pending.buf) || + (0 == sun_pci_dma_pending.len) || + (0 == sun_pci_dma_pending.direction)); + + sun_pci_dma_current.buf = sun_pci_dma_pending.buf; + sun_pci_dma_current.len = sun_pci_dma_pending.len; + sun_pci_dma_current.direction = sun_pci_dma_pending.direction; + + sun_pci_dma_pending.buf = NULL; + sun_pci_dma_pending.len = 0; + sun_pci_dma_pending.direction = 0; + sun_pci_dma_pending.addr = -1U; + + sun_pci_dma_current.addr = + pci_map_single(sun_pci_ebus_dev, + sun_pci_dma_current.buf, + sun_pci_dma_current.len, + sun_pci_dma_current.direction); + + ebus_dma_enable(&sun_pci_fd_ebus_dma, 1); + + if (ebus_dma_request(&sun_pci_fd_ebus_dma, + sun_pci_dma_current.addr, + sun_pci_dma_current.len)) + BUG(); +} + +static void sun_pci_fd_disable_dma(void) +{ + ebus_dma_enable(&sun_pci_fd_ebus_dma, 0); + if (sun_pci_dma_current.addr != -1U) + pci_unmap_single(sun_pci_ebus_dev, + sun_pci_dma_current.addr, + sun_pci_dma_current.len, + sun_pci_dma_current.direction); + sun_pci_dma_current.addr = -1U; +} + +static void sun_pci_fd_set_dma_mode(int mode) +{ + if (mode == DMA_MODE_WRITE) + sun_pci_dma_pending.direction = PCI_DMA_TODEVICE; + else + sun_pci_dma_pending.direction = PCI_DMA_FROMDEVICE; + + ebus_dma_prepare(&sun_pci_fd_ebus_dma, mode != DMA_MODE_WRITE); +} + +static void sun_pci_fd_set_dma_count(int length) +{ + sun_pci_dma_pending.len = length; +} + +static void sun_pci_fd_set_dma_addr(char *buffer) +{ + sun_pci_dma_pending.buf = buffer; +} + +static unsigned int sun_pci_get_dma_residue(void) +{ + return ebus_dma_residue(&sun_pci_fd_ebus_dma); +} + +static int sun_pci_fd_request_irq(void) +{ + return ebus_dma_irq_enable(&sun_pci_fd_ebus_dma, 1); +} + +static void sun_pci_fd_free_irq(void) +{ + ebus_dma_irq_enable(&sun_pci_fd_ebus_dma, 0); +} + +static int sun_pci_fd_eject(int drive) +{ + return -EINVAL; +} + +void sun_pci_fd_dma_callback(struct ebus_dma_info *p, int event, void *cookie) +{ + floppy_interrupt(0, NULL); +} + +/* + * Floppy probing, we'd like to use /dev/fd0 for a single Floppy on PCI, + * even if this is configured using DS1, thus looks like /dev/fd1 with + * the cabling used in Ultras. + */ +#define DOR (port + 2) +#define MSR (port + 4) +#define FIFO (port + 5) + +static void sun_pci_fd_out_byte(unsigned long port, unsigned char val, + unsigned long reg) +{ + unsigned char status; + int timeout = 1000; + + while (!((status = inb(MSR)) & 0x80) && --timeout) + udelay(100); + outb(val, reg); +} + +static unsigned char sun_pci_fd_sensei(unsigned long port) +{ + unsigned char result[2] = { 0x70, 0x00 }; + unsigned char status; + int i = 0; + + sun_pci_fd_out_byte(port, 0x08, FIFO); + do { + int timeout = 1000; + + while (!((status = inb(MSR)) & 0x80) && --timeout) + udelay(100); + + if (!timeout) + break; + + if ((status & 0xf0) == 0xd0) + result[i++] = inb(FIFO); + else + break; + } while (i < 2); + + return result[0]; +} + +static void sun_pci_fd_reset(unsigned long port) +{ + unsigned char mask = 0x00; + unsigned char status; + int timeout = 10000; + + outb(0x80, MSR); + do { + status = sun_pci_fd_sensei(port); + if ((status & 0xc0) == 0xc0) + mask |= 1 << (status & 0x03); + else + udelay(100); + } while ((mask != 0x0f) && --timeout); +} + +static int sun_pci_fd_test_drive(unsigned long port, int drive) +{ + unsigned char status, data; + int timeout = 1000; + int ready; + + sun_pci_fd_reset(port); + + data = (0x10 << drive) | 0x0c | drive; + sun_pci_fd_out_byte(port, data, DOR); + + sun_pci_fd_out_byte(port, 0x07, FIFO); + sun_pci_fd_out_byte(port, drive & 0x03, FIFO); + + do { + udelay(100); + status = sun_pci_fd_sensei(port); + } while (((status & 0xc0) == 0x80) && --timeout); + + if (!timeout) + ready = 0; + else + ready = (status & 0x10) ? 0 : 1; + + sun_pci_fd_reset(port); + return ready; +} +#undef FIFO +#undef MSR +#undef DOR + +#endif /* CONFIG_PCI */ + +#ifdef CONFIG_PCI +static int __init ebus_fdthree_p(struct linux_ebus_device *edev) +{ + if (!strcmp(edev->prom_node->name, "fdthree")) + return 1; + if (!strcmp(edev->prom_node->name, "floppy")) { + const char *compat; + + compat = of_get_property(edev->prom_node, + "compatible", NULL); + if (compat && !strcmp(compat, "fdthree")) + return 1; + } + return 0; +} +#endif + +static unsigned long __init sun_floppy_init(void) +{ + char state[128]; + struct sbus_bus *bus; + struct sbus_dev *sdev = NULL; + static int initialized = 0; + + if (initialized) + return sun_floppy_types[0]; + initialized = 1; + + for_all_sbusdev (sdev, bus) { + if (!strcmp(sdev->prom_name, "SUNW,fdtwo")) + break; + } + if(sdev) { + floppy_sdev = sdev; + FLOPPY_IRQ = sdev->irqs[0]; + } else { +#ifdef CONFIG_PCI + struct linux_ebus *ebus; + struct linux_ebus_device *edev = NULL; + unsigned long config = 0; + void __iomem *auxio_reg; + const char *state_prop; + + for_each_ebus(ebus) { + for_each_ebusdev(edev, ebus) { + if (ebus_fdthree_p(edev)) + goto ebus_done; + } + } + ebus_done: + if (!edev) + return 0; + + state_prop = of_get_property(edev->prom_node, "status", NULL); + if (state_prop && !strncmp(state_prop, "disabled", 8)) + return 0; + + FLOPPY_IRQ = edev->irqs[0]; + + /* Make sure the high density bit is set, some systems + * (most notably Ultra5/Ultra10) come up with it clear. + */ + auxio_reg = (void __iomem *) edev->resource[2].start; + writel(readl(auxio_reg)|0x2, auxio_reg); + + sun_pci_ebus_dev = ebus->self; + + spin_lock_init(&sun_pci_fd_ebus_dma.lock); + + /* XXX ioremap */ + sun_pci_fd_ebus_dma.regs = (void __iomem *) + edev->resource[1].start; + if (!sun_pci_fd_ebus_dma.regs) + return 0; + + sun_pci_fd_ebus_dma.flags = (EBUS_DMA_FLAG_USE_EBDMA_HANDLER | + EBUS_DMA_FLAG_TCI_DISABLE); + sun_pci_fd_ebus_dma.callback = sun_pci_fd_dma_callback; + sun_pci_fd_ebus_dma.client_cookie = NULL; + sun_pci_fd_ebus_dma.irq = FLOPPY_IRQ; + strcpy(sun_pci_fd_ebus_dma.name, "floppy"); + if (ebus_dma_register(&sun_pci_fd_ebus_dma)) + return 0; + + /* XXX ioremap */ + sun_fdc = (struct sun_flpy_controller *)edev->resource[0].start; + + sun_fdops.fd_inb = sun_pci_fd_inb; + sun_fdops.fd_outb = sun_pci_fd_outb; + + can_use_virtual_dma = use_virtual_dma = 0; + sun_fdops.fd_enable_dma = sun_pci_fd_enable_dma; + sun_fdops.fd_disable_dma = sun_pci_fd_disable_dma; + sun_fdops.fd_set_dma_mode = sun_pci_fd_set_dma_mode; + sun_fdops.fd_set_dma_addr = sun_pci_fd_set_dma_addr; + sun_fdops.fd_set_dma_count = sun_pci_fd_set_dma_count; + sun_fdops.get_dma_residue = sun_pci_get_dma_residue; + + sun_fdops.fd_request_irq = sun_pci_fd_request_irq; + sun_fdops.fd_free_irq = sun_pci_fd_free_irq; + + sun_fdops.fd_eject = sun_pci_fd_eject; + + fdc_status = (unsigned long) &sun_fdc->status_82077; + + /* + * XXX: Find out on which machines this is really needed. + */ + if (1) { + sun_pci_broken_drive = 1; + sun_fdops.fd_outb = sun_pci_fd_broken_outb; + } + + allowed_drive_mask = 0; + if (sun_pci_fd_test_drive((unsigned long)sun_fdc, 0)) + sun_floppy_types[0] = 4; + if (sun_pci_fd_test_drive((unsigned long)sun_fdc, 1)) + sun_floppy_types[1] = 4; + + /* + * Find NS87303 SuperIO config registers (through ecpp). + */ + for_each_ebus(ebus) { + for_each_ebusdev(edev, ebus) { + if (!strcmp(edev->prom_node->name, "ecpp")) { + config = edev->resource[1].start; + goto config_done; + } + } + } + config_done: + + /* + * Sanity check, is this really the NS87303? + */ + switch (config & 0x3ff) { + case 0x02e: + case 0x15c: + case 0x26e: + case 0x398: + break; + default: + config = 0; + } + + if (!config) + return sun_floppy_types[0]; + + /* Enable PC-AT mode. */ + ns87303_modify(config, ASC, 0, 0xc0); + +#ifdef PCI_FDC_SWAP_DRIVES + /* + * If only Floppy 1 is present, swap drives. + */ + if (!sun_floppy_types[0] && sun_floppy_types[1]) { + /* + * Set the drive exchange bit in FCR on NS87303, + * make sure other bits are sane before doing so. + */ + ns87303_modify(config, FER, FER_EDM, 0); + ns87303_modify(config, ASC, ASC_DRV2_SEL, 0); + ns87303_modify(config, FCR, 0, FCR_LDE); + + config = sun_floppy_types[0]; + sun_floppy_types[0] = sun_floppy_types[1]; + sun_floppy_types[1] = config; + + if (sun_pci_broken_drive != -1) { + sun_pci_broken_drive = 1 - sun_pci_broken_drive; + sun_fdops.fd_outb = sun_pci_fd_lde_broken_outb; + } + } +#endif /* PCI_FDC_SWAP_DRIVES */ + + return sun_floppy_types[0]; +#else + return 0; +#endif + } + prom_getproperty(sdev->prom_node, "status", state, sizeof(state)); + if(!strncmp(state, "disabled", 8)) + return 0; + + /* + * We cannot do sbus_ioremap here: it does request_region, + * which the generic floppy driver tries to do once again. + * But we must use the sdev resource values as they have + * had parent ranges applied. + */ + sun_fdc = (struct sun_flpy_controller *) + (sdev->resource[0].start + + ((sdev->resource[0].flags & 0x1ffUL) << 32UL)); + + /* Last minute sanity check... */ + if(sbus_readb(&sun_fdc->status1_82077) == 0xff) { + sun_fdc = (struct sun_flpy_controller *)-1; + return 0; + } + + sun_fdops.fd_inb = sun_82077_fd_inb; + sun_fdops.fd_outb = sun_82077_fd_outb; + + can_use_virtual_dma = use_virtual_dma = 1; + sun_fdops.fd_enable_dma = sun_fd_enable_dma; + sun_fdops.fd_disable_dma = sun_fd_disable_dma; + sun_fdops.fd_set_dma_mode = sun_fd_set_dma_mode; + sun_fdops.fd_set_dma_addr = sun_fd_set_dma_addr; + sun_fdops.fd_set_dma_count = sun_fd_set_dma_count; + sun_fdops.get_dma_residue = sun_get_dma_residue; + + sun_fdops.fd_request_irq = sun_fd_request_irq; + sun_fdops.fd_free_irq = sun_fd_free_irq; + + sun_fdops.fd_eject = sun_fd_eject; + + fdc_status = (unsigned long) &sun_fdc->status_82077; + + /* Success... */ + allowed_drive_mask = 0x01; + sun_floppy_types[0] = 4; + sun_floppy_types[1] = 0; + + return sun_floppy_types[0]; +} + +#define EXTRA_FLOPPY_PARAMS + +static DEFINE_SPINLOCK(dma_spin_lock); + +#define claim_dma_lock() \ +({ unsigned long flags; \ + spin_lock_irqsave(&dma_spin_lock, flags); \ + flags; \ +}) + +#define release_dma_lock(__flags) \ + spin_unlock_irqrestore(&dma_spin_lock, __flags); + +#endif /* !(__ASM_SPARC64_FLOPPY_H) */ diff --git a/include/asm-sparc/futex.h b/include/asm-sparc/futex.h index 6a332a9f099c..c6a9f038c531 100644 --- a/include/asm-sparc/futex.h +++ b/include/asm-sparc/futex.h @@ -1,6 +1,8 @@ -#ifndef _ASM_FUTEX_H -#define _ASM_FUTEX_H - -#include - +#ifndef ___ASM_SPARC_FUTEX_H +#define ___ASM_SPARC_FUTEX_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif diff --git a/include/asm-sparc/futex_32.h b/include/asm-sparc/futex_32.h new file mode 100644 index 000000000000..6a332a9f099c --- /dev/null +++ b/include/asm-sparc/futex_32.h @@ -0,0 +1,6 @@ +#ifndef _ASM_FUTEX_H +#define _ASM_FUTEX_H + +#include + +#endif diff --git a/include/asm-sparc/futex_64.h b/include/asm-sparc/futex_64.h new file mode 100644 index 000000000000..d8378935ae90 --- /dev/null +++ b/include/asm-sparc/futex_64.h @@ -0,0 +1,110 @@ +#ifndef _SPARC64_FUTEX_H +#define _SPARC64_FUTEX_H + +#include +#include +#include +#include + +#define __futex_cas_op(insn, ret, oldval, uaddr, oparg) \ + __asm__ __volatile__( \ + "\n1: lduwa [%3] %%asi, %2\n" \ + " " insn "\n" \ + "2: casa [%3] %%asi, %2, %1\n" \ + " cmp %2, %1\n" \ + " bne,pn %%icc, 1b\n" \ + " mov 0, %0\n" \ + "3:\n" \ + " .section .fixup,#alloc,#execinstr\n" \ + " .align 4\n" \ + "4: sethi %%hi(3b), %0\n" \ + " jmpl %0 + %%lo(3b), %%g0\n" \ + " mov %5, %0\n" \ + " .previous\n" \ + " .section __ex_table,\"a\"\n" \ + " .align 4\n" \ + " .word 1b, 4b\n" \ + " .word 2b, 4b\n" \ + " .previous\n" \ + : "=&r" (ret), "=&r" (oldval), "=&r" (tem) \ + : "r" (uaddr), "r" (oparg), "i" (-EFAULT) \ + : "memory") + +static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) +{ + int op = (encoded_op >> 28) & 7; + int cmp = (encoded_op >> 24) & 15; + int oparg = (encoded_op << 8) >> 20; + int cmparg = (encoded_op << 20) >> 20; + int oldval = 0, ret, tem; + + if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))) + return -EFAULT; + if (unlikely((((unsigned long) uaddr) & 0x3UL))) + return -EINVAL; + + if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) + oparg = 1 << oparg; + + pagefault_disable(); + + switch (op) { + case FUTEX_OP_SET: + __futex_cas_op("mov\t%4, %1", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_ADD: + __futex_cas_op("add\t%2, %4, %1", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_OR: + __futex_cas_op("or\t%2, %4, %1", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_ANDN: + __futex_cas_op("and\t%2, %4, %1", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_XOR: + __futex_cas_op("xor\t%2, %4, %1", ret, oldval, uaddr, oparg); + break; + default: + ret = -ENOSYS; + } + + pagefault_enable(); + + if (!ret) { + switch (cmp) { + case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; + case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; + case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; + case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; + case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; + case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; + default: ret = -ENOSYS; + } + } + return ret; +} + +static inline int +futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) +{ + __asm__ __volatile__( + "\n1: casa [%3] %%asi, %2, %0\n" + "2:\n" + " .section .fixup,#alloc,#execinstr\n" + " .align 4\n" + "3: sethi %%hi(2b), %0\n" + " jmpl %0 + %%lo(2b), %%g0\n" + " mov %4, %0\n" + " .previous\n" + " .section __ex_table,\"a\"\n" + " .align 4\n" + " .word 1b, 3b\n" + " .previous\n" + : "=r" (newval) + : "0" (newval), "r" (oldval), "r" (uaddr), "i" (-EFAULT) + : "memory"); + + return newval; +} + +#endif /* !(_SPARC64_FUTEX_H) */ diff --git a/include/asm-sparc/hardirq.h b/include/asm-sparc/hardirq.h index 4f63ed8df551..156478773100 100644 --- a/include/asm-sparc/hardirq.h +++ b/include/asm-sparc/hardirq.h @@ -1,23 +1,8 @@ -/* hardirq.h: 32-bit Sparc hard IRQ support. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1998-2000 Anton Blanchard (anton@samba.org) - */ - -#ifndef __SPARC_HARDIRQ_H -#define __SPARC_HARDIRQ_H - -#include -#include -#include - -/* entry.S is sensitive to the offsets of these fields */ /* XXX P3 Is it? */ -typedef struct { - unsigned int __softirq_pending; -} ____cacheline_aligned irq_cpustat_t; - -#include /* Standard mappings for irq_cpustat_t above */ - -#define HARDIRQ_BITS 8 - -#endif /* __SPARC_HARDIRQ_H */ +#ifndef ___ASM_SPARC_HARDIRQ_H +#define ___ASM_SPARC_HARDIRQ_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/hardirq_32.h b/include/asm-sparc/hardirq_32.h new file mode 100644 index 000000000000..4f63ed8df551 --- /dev/null +++ b/include/asm-sparc/hardirq_32.h @@ -0,0 +1,23 @@ +/* hardirq.h: 32-bit Sparc hard IRQ support. + * + * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1998-2000 Anton Blanchard (anton@samba.org) + */ + +#ifndef __SPARC_HARDIRQ_H +#define __SPARC_HARDIRQ_H + +#include +#include +#include + +/* entry.S is sensitive to the offsets of these fields */ /* XXX P3 Is it? */ +typedef struct { + unsigned int __softirq_pending; +} ____cacheline_aligned irq_cpustat_t; + +#include /* Standard mappings for irq_cpustat_t above */ + +#define HARDIRQ_BITS 8 + +#endif /* __SPARC_HARDIRQ_H */ diff --git a/include/asm-sparc/hardirq_64.h b/include/asm-sparc/hardirq_64.h new file mode 100644 index 000000000000..7c29fd1a87aa --- /dev/null +++ b/include/asm-sparc/hardirq_64.h @@ -0,0 +1,19 @@ +/* hardirq.h: 64-bit Sparc hard IRQ support. + * + * Copyright (C) 1997, 1998, 2005 David S. Miller (davem@davemloft.net) + */ + +#ifndef __SPARC64_HARDIRQ_H +#define __SPARC64_HARDIRQ_H + +#include + +#define __ARCH_IRQ_STAT +#define local_softirq_pending() \ + (local_cpu_data().__softirq_pending) + +void ack_bad_irq(unsigned int irq); + +#define HARDIRQ_BITS 8 + +#endif /* !(__SPARC64_HARDIRQ_H) */ diff --git a/include/asm-sparc/head.h b/include/asm-sparc/head.h index 7c35491a8b53..14652abdea31 100644 --- a/include/asm-sparc/head.h +++ b/include/asm-sparc/head.h @@ -1,102 +1,8 @@ -#ifndef __SPARC_HEAD_H -#define __SPARC_HEAD_H - -#define KERNBASE 0xf0000000 /* First address the kernel will eventually be */ -#define LOAD_ADDR 0x4000 /* prom jumps to us here unless this is elf /boot */ -#define SUN4C_SEGSZ (1 << 18) -#define SRMMU_L1_KBASE_OFFSET ((KERNBASE>>24)<<2) /* Used in boot remapping. */ -#define INTS_ENAB 0x01 /* entry.S uses this. */ - -#define SUN4_PROM_VECTOR 0xFFE81000 /* SUN4 PROM needs to be hardwired */ - -#define WRITE_PAUSE nop; nop; nop; /* Have to do this after %wim/%psr chg */ -#define NOP_INSN 0x01000000 /* Used to patch sparc_save_state */ - -/* Here are some trap goodies */ - -/* Generic trap entry. */ -#define TRAP_ENTRY(type, label) \ - rd %psr, %l0; b label; rd %wim, %l3; nop; - -/* Data/text faults. Defaults to sun4c version at boot time. */ -#define SPARC_TFAULT rd %psr, %l0; rd %wim, %l3; b sun4c_fault; mov 1, %l7; -#define SPARC_DFAULT rd %psr, %l0; rd %wim, %l3; b sun4c_fault; mov 0, %l7; -#define SRMMU_TFAULT rd %psr, %l0; rd %wim, %l3; b srmmu_fault; mov 1, %l7; -#define SRMMU_DFAULT rd %psr, %l0; rd %wim, %l3; b srmmu_fault; mov 0, %l7; - -/* This is for traps we should NEVER get. */ -#define BAD_TRAP(num) \ - rd %psr, %l0; mov num, %l7; b bad_trap_handler; rd %wim, %l3; - -/* This is for traps when we want just skip the instruction which caused it */ -#define SKIP_TRAP(type, name) \ - jmpl %l2, %g0; rett %l2 + 4; nop; nop; - -/* Notice that for the system calls we pull a trick. We load up a - * different pointer to the system call vector table in %l7, but call - * the same generic system call low-level entry point. The trap table - * entry sequences are also HyperSparc pipeline friendly ;-) - */ - -/* Software trap for Linux system calls. */ -#define LINUX_SYSCALL_TRAP \ - sethi %hi(sys_call_table), %l7; \ - or %l7, %lo(sys_call_table), %l7; \ - b linux_sparc_syscall; \ - rd %psr, %l0; - -#define BREAKPOINT_TRAP \ - b breakpoint_trap; \ - rd %psr,%l0; \ - nop; \ - nop; - -#ifdef CONFIG_KGDB -#define KGDB_TRAP(num) \ - b kgdb_trap_low; \ - rd %psr,%l0; \ - nop; \ - nop; +#ifndef ___ASM_SPARC_HEAD_H +#define ___ASM_SPARC_HEAD_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define KGDB_TRAP(num) \ - BAD_TRAP(num) +#include +#endif #endif - -/* The Get Condition Codes software trap for userland. */ -#define GETCC_TRAP \ - b getcc_trap_handler; mov %psr, %l0; nop; nop; - -/* The Set Condition Codes software trap for userland. */ -#define SETCC_TRAP \ - b setcc_trap_handler; mov %psr, %l0; nop; nop; - -/* The Get PSR software trap for userland. */ -#define GETPSR_TRAP \ - mov %psr, %i0; jmp %l2; rett %l2 + 4; nop; - -/* This is for hard interrupts from level 1-14, 15 is non-maskable (nmi) and - * gets handled with another macro. - */ -#define TRAP_ENTRY_INTERRUPT(int_level) \ - mov int_level, %l7; rd %psr, %l0; b real_irq_entry; rd %wim, %l3; - -/* NMI's (Non Maskable Interrupts) are special, you can't keep them - * from coming in, and basically if you get one, the shows over. ;( - * On the sun4c they are usually asynchronous memory errors, on the - * the sun4m they could be either due to mem errors or a software - * initiated interrupt from the prom/kern on an SMP box saying "I - * command you to do CPU tricks, read your mailbox for more info." - */ -#define NMI_TRAP \ - rd %wim, %l3; b linux_trap_nmi_sun4c; mov %psr, %l0; nop; - -/* Window overflows/underflows are special and we need to try to be as - * efficient as possible here.... - */ -#define WINDOW_SPILL \ - rd %psr, %l0; rd %wim, %l3; b spill_window_entry; andcc %l0, PSR_PS, %g0; - -#define WINDOW_FILL \ - rd %psr, %l0; rd %wim, %l3; b fill_window_entry; andcc %l0, PSR_PS, %g0; - -#endif /* __SPARC_HEAD_H */ diff --git a/include/asm-sparc/head_32.h b/include/asm-sparc/head_32.h new file mode 100644 index 000000000000..7c35491a8b53 --- /dev/null +++ b/include/asm-sparc/head_32.h @@ -0,0 +1,102 @@ +#ifndef __SPARC_HEAD_H +#define __SPARC_HEAD_H + +#define KERNBASE 0xf0000000 /* First address the kernel will eventually be */ +#define LOAD_ADDR 0x4000 /* prom jumps to us here unless this is elf /boot */ +#define SUN4C_SEGSZ (1 << 18) +#define SRMMU_L1_KBASE_OFFSET ((KERNBASE>>24)<<2) /* Used in boot remapping. */ +#define INTS_ENAB 0x01 /* entry.S uses this. */ + +#define SUN4_PROM_VECTOR 0xFFE81000 /* SUN4 PROM needs to be hardwired */ + +#define WRITE_PAUSE nop; nop; nop; /* Have to do this after %wim/%psr chg */ +#define NOP_INSN 0x01000000 /* Used to patch sparc_save_state */ + +/* Here are some trap goodies */ + +/* Generic trap entry. */ +#define TRAP_ENTRY(type, label) \ + rd %psr, %l0; b label; rd %wim, %l3; nop; + +/* Data/text faults. Defaults to sun4c version at boot time. */ +#define SPARC_TFAULT rd %psr, %l0; rd %wim, %l3; b sun4c_fault; mov 1, %l7; +#define SPARC_DFAULT rd %psr, %l0; rd %wim, %l3; b sun4c_fault; mov 0, %l7; +#define SRMMU_TFAULT rd %psr, %l0; rd %wim, %l3; b srmmu_fault; mov 1, %l7; +#define SRMMU_DFAULT rd %psr, %l0; rd %wim, %l3; b srmmu_fault; mov 0, %l7; + +/* This is for traps we should NEVER get. */ +#define BAD_TRAP(num) \ + rd %psr, %l0; mov num, %l7; b bad_trap_handler; rd %wim, %l3; + +/* This is for traps when we want just skip the instruction which caused it */ +#define SKIP_TRAP(type, name) \ + jmpl %l2, %g0; rett %l2 + 4; nop; nop; + +/* Notice that for the system calls we pull a trick. We load up a + * different pointer to the system call vector table in %l7, but call + * the same generic system call low-level entry point. The trap table + * entry sequences are also HyperSparc pipeline friendly ;-) + */ + +/* Software trap for Linux system calls. */ +#define LINUX_SYSCALL_TRAP \ + sethi %hi(sys_call_table), %l7; \ + or %l7, %lo(sys_call_table), %l7; \ + b linux_sparc_syscall; \ + rd %psr, %l0; + +#define BREAKPOINT_TRAP \ + b breakpoint_trap; \ + rd %psr,%l0; \ + nop; \ + nop; + +#ifdef CONFIG_KGDB +#define KGDB_TRAP(num) \ + b kgdb_trap_low; \ + rd %psr,%l0; \ + nop; \ + nop; +#else +#define KGDB_TRAP(num) \ + BAD_TRAP(num) +#endif + +/* The Get Condition Codes software trap for userland. */ +#define GETCC_TRAP \ + b getcc_trap_handler; mov %psr, %l0; nop; nop; + +/* The Set Condition Codes software trap for userland. */ +#define SETCC_TRAP \ + b setcc_trap_handler; mov %psr, %l0; nop; nop; + +/* The Get PSR software trap for userland. */ +#define GETPSR_TRAP \ + mov %psr, %i0; jmp %l2; rett %l2 + 4; nop; + +/* This is for hard interrupts from level 1-14, 15 is non-maskable (nmi) and + * gets handled with another macro. + */ +#define TRAP_ENTRY_INTERRUPT(int_level) \ + mov int_level, %l7; rd %psr, %l0; b real_irq_entry; rd %wim, %l3; + +/* NMI's (Non Maskable Interrupts) are special, you can't keep them + * from coming in, and basically if you get one, the shows over. ;( + * On the sun4c they are usually asynchronous memory errors, on the + * the sun4m they could be either due to mem errors or a software + * initiated interrupt from the prom/kern on an SMP box saying "I + * command you to do CPU tricks, read your mailbox for more info." + */ +#define NMI_TRAP \ + rd %wim, %l3; b linux_trap_nmi_sun4c; mov %psr, %l0; nop; + +/* Window overflows/underflows are special and we need to try to be as + * efficient as possible here.... + */ +#define WINDOW_SPILL \ + rd %psr, %l0; rd %wim, %l3; b spill_window_entry; andcc %l0, PSR_PS, %g0; + +#define WINDOW_FILL \ + rd %psr, %l0; rd %wim, %l3; b fill_window_entry; andcc %l0, PSR_PS, %g0; + +#endif /* __SPARC_HEAD_H */ diff --git a/include/asm-sparc/head_64.h b/include/asm-sparc/head_64.h new file mode 100644 index 000000000000..10e9dabc4c41 --- /dev/null +++ b/include/asm-sparc/head_64.h @@ -0,0 +1,76 @@ +#ifndef _SPARC64_HEAD_H +#define _SPARC64_HEAD_H + +#include + + /* wrpr %g0, val, %gl */ +#define SET_GL(val) \ + .word 0xa1902000 | val + + /* rdpr %gl, %gN */ +#define GET_GL_GLOBAL(N) \ + .word 0x81540000 | (N << 25) + +#define KERNBASE 0x400000 + +#define PTREGS_OFF (STACK_BIAS + STACKFRAME_SZ) + +#define __CHEETAH_ID 0x003e0014 +#define __JALAPENO_ID 0x003e0016 +#define __SERRANO_ID 0x003e0022 + +#define CHEETAH_MANUF 0x003e +#define CHEETAH_IMPL 0x0014 /* Ultra-III */ +#define CHEETAH_PLUS_IMPL 0x0015 /* Ultra-III+ */ +#define JALAPENO_IMPL 0x0016 /* Ultra-IIIi */ +#define JAGUAR_IMPL 0x0018 /* Ultra-IV */ +#define PANTHER_IMPL 0x0019 /* Ultra-IV+ */ +#define SERRANO_IMPL 0x0022 /* Ultra-IIIi+ */ + +#define BRANCH_IF_SUN4V(tmp1,label) \ + sethi %hi(is_sun4v), %tmp1; \ + lduw [%tmp1 + %lo(is_sun4v)], %tmp1; \ + brnz,pn %tmp1, label; \ + nop + +#define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \ + rdpr %ver, %tmp1; \ + sethi %hi(__CHEETAH_ID), %tmp2; \ + srlx %tmp1, 32, %tmp1; \ + or %tmp2, %lo(__CHEETAH_ID), %tmp2;\ + cmp %tmp1, %tmp2; \ + be,pn %icc, label; \ + nop; + +#define BRANCH_IF_JALAPENO(tmp1,tmp2,label) \ + rdpr %ver, %tmp1; \ + sethi %hi(__JALAPENO_ID), %tmp2; \ + srlx %tmp1, 32, %tmp1; \ + or %tmp2, %lo(__JALAPENO_ID), %tmp2;\ + cmp %tmp1, %tmp2; \ + be,pn %icc, label; \ + nop; + +#define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label) \ + rdpr %ver, %tmp1; \ + srlx %tmp1, (32 + 16), %tmp2; \ + cmp %tmp2, CHEETAH_MANUF; \ + bne,pt %xcc, 99f; \ + sllx %tmp1, 16, %tmp1; \ + srlx %tmp1, (32 + 16), %tmp2; \ + cmp %tmp2, CHEETAH_PLUS_IMPL; \ + bgeu,pt %xcc, label; \ +99: nop; + +#define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label) \ + rdpr %ver, %tmp1; \ + srlx %tmp1, (32 + 16), %tmp2; \ + cmp %tmp2, CHEETAH_MANUF; \ + bne,pt %xcc, 99f; \ + sllx %tmp1, 16, %tmp1; \ + srlx %tmp1, (32 + 16), %tmp2; \ + cmp %tmp2, CHEETAH_IMPL; \ + bgeu,pt %xcc, label; \ +99: nop; + +#endif /* !(_SPARC64_HEAD_H) */ diff --git a/include/asm-sparc/ide.h b/include/asm-sparc/ide.h index afd1736ed480..a3c7f5ff270a 100644 --- a/include/asm-sparc/ide.h +++ b/include/asm-sparc/ide.h @@ -1,95 +1,8 @@ -/* ide.h: SPARC PCI specific IDE glue. - * - * Copyright (C) 1997 David S. Miller (davem@davemloft.net) - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - * Adaptation from sparc64 version to sparc by Pete Zaitcev. - */ - -#ifndef _SPARC_IDE_H -#define _SPARC_IDE_H - -#ifdef __KERNEL__ - -#include -#include -#include - -#undef MAX_HWIFS -#define MAX_HWIFS 2 - -#define __ide_insl(data_reg, buffer, wcount) \ - __ide_insw(data_reg, buffer, (wcount)<<1) -#define __ide_outsl(data_reg, buffer, wcount) \ - __ide_outsw(data_reg, buffer, (wcount)<<1) - -/* On sparc, I/O ports and MMIO registers are accessed identically. */ -#define __ide_mm_insw __ide_insw -#define __ide_mm_insl __ide_insl -#define __ide_mm_outsw __ide_outsw -#define __ide_mm_outsl __ide_outsl - -static inline void __ide_insw(unsigned long port, - void *dst, - unsigned long count) -{ - volatile unsigned short *data_port; - /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */ - u16 *ps = dst; - u32 *pi; - - data_port = (volatile unsigned short *)port; - - if(((unsigned long)ps) & 0x2) { - *ps++ = *data_port; - count--; - } - pi = (u32 *)ps; - while(count >= 2) { - u32 w; - - w = (*data_port) << 16; - w |= (*data_port); - *pi++ = w; - count -= 2; - } - ps = (u16 *)pi; - if(count) - *ps++ = *data_port; - - /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */ -} - -static inline void __ide_outsw(unsigned long port, - const void *src, - unsigned long count) -{ - volatile unsigned short *data_port; - /* unsigned long end = (unsigned long)src + (count << 1); */ - const u16 *ps = src; - const u32 *pi; - - data_port = (volatile unsigned short *)port; - - if(((unsigned long)src) & 0x2) { - *data_port = *ps++; - count--; - } - pi = (const u32 *)ps; - while(count >= 2) { - u32 w; - - w = *pi++; - *data_port = (w >> 16); - *data_port = w; - count -= 2; - } - ps = (const u16 *)pi; - if(count) - *data_port = *ps; - - /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */ -} - -#endif /* __KERNEL__ */ - -#endif /* _SPARC_IDE_H */ +#ifndef ___ASM_SPARC_IDE_H +#define ___ASM_SPARC_IDE_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/ide_32.h b/include/asm-sparc/ide_32.h new file mode 100644 index 000000000000..afd1736ed480 --- /dev/null +++ b/include/asm-sparc/ide_32.h @@ -0,0 +1,95 @@ +/* ide.h: SPARC PCI specific IDE glue. + * + * Copyright (C) 1997 David S. Miller (davem@davemloft.net) + * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) + * Adaptation from sparc64 version to sparc by Pete Zaitcev. + */ + +#ifndef _SPARC_IDE_H +#define _SPARC_IDE_H + +#ifdef __KERNEL__ + +#include +#include +#include + +#undef MAX_HWIFS +#define MAX_HWIFS 2 + +#define __ide_insl(data_reg, buffer, wcount) \ + __ide_insw(data_reg, buffer, (wcount)<<1) +#define __ide_outsl(data_reg, buffer, wcount) \ + __ide_outsw(data_reg, buffer, (wcount)<<1) + +/* On sparc, I/O ports and MMIO registers are accessed identically. */ +#define __ide_mm_insw __ide_insw +#define __ide_mm_insl __ide_insl +#define __ide_mm_outsw __ide_outsw +#define __ide_mm_outsl __ide_outsl + +static inline void __ide_insw(unsigned long port, + void *dst, + unsigned long count) +{ + volatile unsigned short *data_port; + /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */ + u16 *ps = dst; + u32 *pi; + + data_port = (volatile unsigned short *)port; + + if(((unsigned long)ps) & 0x2) { + *ps++ = *data_port; + count--; + } + pi = (u32 *)ps; + while(count >= 2) { + u32 w; + + w = (*data_port) << 16; + w |= (*data_port); + *pi++ = w; + count -= 2; + } + ps = (u16 *)pi; + if(count) + *ps++ = *data_port; + + /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */ +} + +static inline void __ide_outsw(unsigned long port, + const void *src, + unsigned long count) +{ + volatile unsigned short *data_port; + /* unsigned long end = (unsigned long)src + (count << 1); */ + const u16 *ps = src; + const u32 *pi; + + data_port = (volatile unsigned short *)port; + + if(((unsigned long)src) & 0x2) { + *data_port = *ps++; + count--; + } + pi = (const u32 *)ps; + while(count >= 2) { + u32 w; + + w = *pi++; + *data_port = (w >> 16); + *data_port = w; + count -= 2; + } + ps = (const u16 *)pi; + if(count) + *data_port = *ps; + + /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */ +} + +#endif /* __KERNEL__ */ + +#endif /* _SPARC_IDE_H */ diff --git a/include/asm-sparc/ide_64.h b/include/asm-sparc/ide_64.h new file mode 100644 index 000000000000..1282676da1cd --- /dev/null +++ b/include/asm-sparc/ide_64.h @@ -0,0 +1,118 @@ +/* + * ide.h: Ultra/PCI specific IDE glue. + * + * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) + */ + +#ifndef _SPARC64_IDE_H +#define _SPARC64_IDE_H + +#ifdef __KERNEL__ + +#include +#include +#include +#include +#include + +#ifndef MAX_HWIFS +# ifdef CONFIG_BLK_DEV_IDEPCI +#define MAX_HWIFS 10 +# else +#define MAX_HWIFS 2 +# endif +#endif + +#define __ide_insl(data_reg, buffer, wcount) \ + __ide_insw(data_reg, buffer, (wcount)<<1) +#define __ide_outsl(data_reg, buffer, wcount) \ + __ide_outsw(data_reg, buffer, (wcount)<<1) + +/* On sparc64, I/O ports and MMIO registers are accessed identically. */ +#define __ide_mm_insw __ide_insw +#define __ide_mm_insl __ide_insl +#define __ide_mm_outsw __ide_outsw +#define __ide_mm_outsl __ide_outsl + +static inline unsigned int inw_be(void __iomem *addr) +{ + unsigned int ret; + + __asm__ __volatile__("lduha [%1] %2, %0" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline void __ide_insw(void __iomem *port, void *dst, u32 count) +{ +#ifdef DCACHE_ALIASING_POSSIBLE + unsigned long end = (unsigned long)dst + (count << 1); +#endif + u16 *ps = dst; + u32 *pi; + + if(((u64)ps) & 0x2) { + *ps++ = inw_be(port); + count--; + } + pi = (u32 *)ps; + while(count >= 2) { + u32 w; + + w = inw_be(port) << 16; + w |= inw_be(port); + *pi++ = w; + count -= 2; + } + ps = (u16 *)pi; + if(count) + *ps++ = inw_be(port); + +#ifdef DCACHE_ALIASING_POSSIBLE + __flush_dcache_range((unsigned long)dst, end); +#endif +} + +static inline void outw_be(unsigned short w, void __iomem *addr) +{ + __asm__ __volatile__("stha %0, [%1] %2" + : /* no outputs */ + : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +static inline void __ide_outsw(void __iomem *port, void *src, u32 count) +{ +#ifdef DCACHE_ALIASING_POSSIBLE + unsigned long end = (unsigned long)src + (count << 1); +#endif + const u16 *ps = src; + const u32 *pi; + + if(((u64)src) & 0x2) { + outw_be(*ps++, port); + count--; + } + pi = (const u32 *)ps; + while(count >= 2) { + u32 w; + + w = *pi++; + outw_be((w >> 16), port); + outw_be(w, port); + count -= 2; + } + ps = (const u16 *)pi; + if(count) + outw_be(*ps, port); + +#ifdef DCACHE_ALIASING_POSSIBLE + __flush_dcache_range((unsigned long)src, end); +#endif +} + +#endif /* __KERNEL__ */ + +#endif /* _SPARC64_IDE_H */ diff --git a/include/asm-sparc/io.h b/include/asm-sparc/io.h index 3a3e7bdb06b3..fc9024d3dfc3 100644 --- a/include/asm-sparc/io.h +++ b/include/asm-sparc/io.h @@ -1,325 +1,8 @@ -#ifndef __SPARC_IO_H -#define __SPARC_IO_H - -#include -#include -#include /* struct resource */ - -#include /* IO address mapping routines need this */ -#include - -#define page_to_phys(page) (((page) - mem_map) << PAGE_SHIFT) - -static inline u32 flip_dword (u32 l) -{ - return ((l&0xff)<<24) | (((l>>8)&0xff)<<16) | (((l>>16)&0xff)<<8)| ((l>>24)&0xff); -} - -static inline u16 flip_word (u16 w) -{ - return ((w&0xff) << 8) | ((w>>8)&0xff); -} - -#define mmiowb() - -/* - * Memory mapped I/O to PCI - */ - -static inline u8 __raw_readb(const volatile void __iomem *addr) -{ - return *(__force volatile u8 *)addr; -} - -static inline u16 __raw_readw(const volatile void __iomem *addr) -{ - return *(__force volatile u16 *)addr; -} - -static inline u32 __raw_readl(const volatile void __iomem *addr) -{ - return *(__force volatile u32 *)addr; -} - -static inline void __raw_writeb(u8 b, volatile void __iomem *addr) -{ - *(__force volatile u8 *)addr = b; -} - -static inline void __raw_writew(u16 w, volatile void __iomem *addr) -{ - *(__force volatile u16 *)addr = w; -} - -static inline void __raw_writel(u32 l, volatile void __iomem *addr) -{ - *(__force volatile u32 *)addr = l; -} - -static inline u8 __readb(const volatile void __iomem *addr) -{ - return *(__force volatile u8 *)addr; -} - -static inline u16 __readw(const volatile void __iomem *addr) -{ - return flip_word(*(__force volatile u16 *)addr); -} - -static inline u32 __readl(const volatile void __iomem *addr) -{ - return flip_dword(*(__force volatile u32 *)addr); -} - -static inline void __writeb(u8 b, volatile void __iomem *addr) -{ - *(__force volatile u8 *)addr = b; -} - -static inline void __writew(u16 w, volatile void __iomem *addr) -{ - *(__force volatile u16 *)addr = flip_word(w); -} - -static inline void __writel(u32 l, volatile void __iomem *addr) -{ - *(__force volatile u32 *)addr = flip_dword(l); -} - -#define readb(__addr) __readb(__addr) -#define readw(__addr) __readw(__addr) -#define readl(__addr) __readl(__addr) -#define readb_relaxed(__addr) readb(__addr) -#define readw_relaxed(__addr) readw(__addr) -#define readl_relaxed(__addr) readl(__addr) - -#define writeb(__b, __addr) __writeb((__b),(__addr)) -#define writew(__w, __addr) __writew((__w),(__addr)) -#define writel(__l, __addr) __writel((__l),(__addr)) - -/* - * I/O space operations - * - * Arrangement on a Sun is somewhat complicated. - * - * First of all, we want to use standard Linux drivers - * for keyboard, PC serial, etc. These drivers think - * they access I/O space and use inb/outb. - * On the other hand, EBus bridge accepts PCI *memory* - * cycles and converts them into ISA *I/O* cycles. - * Ergo, we want inb & outb to generate PCI memory cycles. - * - * If we want to issue PCI *I/O* cycles, we do this - * with a low 64K fixed window in PCIC. This window gets - * mapped somewhere into virtual kernel space and we - * can use inb/outb again. - */ -#define inb_local(__addr) __readb((void __iomem *)(unsigned long)(__addr)) -#define inb(__addr) __readb((void __iomem *)(unsigned long)(__addr)) -#define inw(__addr) __readw((void __iomem *)(unsigned long)(__addr)) -#define inl(__addr) __readl((void __iomem *)(unsigned long)(__addr)) - -#define outb_local(__b, __addr) __writeb(__b, (void __iomem *)(unsigned long)(__addr)) -#define outb(__b, __addr) __writeb(__b, (void __iomem *)(unsigned long)(__addr)) -#define outw(__w, __addr) __writew(__w, (void __iomem *)(unsigned long)(__addr)) -#define outl(__l, __addr) __writel(__l, (void __iomem *)(unsigned long)(__addr)) - -#define inb_p(__addr) inb(__addr) -#define outb_p(__b, __addr) outb(__b, __addr) -#define inw_p(__addr) inw(__addr) -#define outw_p(__w, __addr) outw(__w, __addr) -#define inl_p(__addr) inl(__addr) -#define outl_p(__l, __addr) outl(__l, __addr) - -void outsb(unsigned long addr, const void *src, unsigned long cnt); -void outsw(unsigned long addr, const void *src, unsigned long cnt); -void outsl(unsigned long addr, const void *src, unsigned long cnt); -void insb(unsigned long addr, void *dst, unsigned long count); -void insw(unsigned long addr, void *dst, unsigned long count); -void insl(unsigned long addr, void *dst, unsigned long count); - -#define IO_SPACE_LIMIT 0xffffffff - -/* - * SBus accessors. - * - * SBus has only one, memory mapped, I/O space. - * We do not need to flip bytes for SBus of course. - */ -static inline u8 _sbus_readb(const volatile void __iomem *addr) -{ - return *(__force volatile u8 *)addr; -} - -static inline u16 _sbus_readw(const volatile void __iomem *addr) -{ - return *(__force volatile u16 *)addr; -} - -static inline u32 _sbus_readl(const volatile void __iomem *addr) -{ - return *(__force volatile u32 *)addr; -} - -static inline void _sbus_writeb(u8 b, volatile void __iomem *addr) -{ - *(__force volatile u8 *)addr = b; -} - -static inline void _sbus_writew(u16 w, volatile void __iomem *addr) -{ - *(__force volatile u16 *)addr = w; -} - -static inline void _sbus_writel(u32 l, volatile void __iomem *addr) -{ - *(__force volatile u32 *)addr = l; -} - -/* - * The only reason for #define's is to hide casts to unsigned long. - */ -#define sbus_readb(__addr) _sbus_readb(__addr) -#define sbus_readw(__addr) _sbus_readw(__addr) -#define sbus_readl(__addr) _sbus_readl(__addr) -#define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr) -#define sbus_writew(__w, __addr) _sbus_writew(__w, __addr) -#define sbus_writel(__l, __addr) _sbus_writel(__l, __addr) - -static inline void sbus_memset_io(volatile void __iomem *__dst, int c, __kernel_size_t n) -{ - while(n--) { - sbus_writeb(c, __dst); - __dst++; - } -} - -static inline void -_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) -{ - volatile void __iomem *d = dst; - - while (n--) { - writeb(c, d); - d++; - } -} - -#define memset_io(d,c,sz) _memset_io(d,c,sz) - -static inline void -_memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n) -{ - char *d = dst; - - while (n--) { - char tmp = readb(src); - *d++ = tmp; - src++; - } -} - -#define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz) - -static inline void -_memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n) -{ - const char *s = src; - volatile void __iomem *d = dst; - - while (n--) { - char tmp = *s++; - writeb(tmp, d); - d++; - } -} - -#define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz) - -#ifdef __KERNEL__ - -/* - * Bus number may be embedded in the higher bits of the physical address. - * This is why we have no bus number argument to ioremap(). - */ -extern void __iomem *ioremap(unsigned long offset, unsigned long size); -#define ioremap_nocache(X,Y) ioremap((X),(Y)) -extern void iounmap(volatile void __iomem *addr); - -#define ioread8(X) readb(X) -#define ioread16(X) readw(X) -#define ioread32(X) readl(X) -#define iowrite8(val,X) writeb(val,X) -#define iowrite16(val,X) writew(val,X) -#define iowrite32(val,X) writel(val,X) - -static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count) -{ - insb((unsigned long __force)port, buf, count); -} -static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count) -{ - insw((unsigned long __force)port, buf, count); -} - -static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count) -{ - insl((unsigned long __force)port, buf, count); -} - -static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count) -{ - outsb((unsigned long __force)port, buf, count); -} - -static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count) -{ - outsw((unsigned long __force)port, buf, count); -} - -static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count) -{ - outsl((unsigned long __force)port, buf, count); -} - -/* Create a virtual mapping cookie for an IO port range */ -extern void __iomem *ioport_map(unsigned long port, unsigned int nr); -extern void ioport_unmap(void __iomem *); - -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ -struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); -extern void pci_iounmap(struct pci_dev *dev, void __iomem *); - -/* - * Bus number may be in res->flags... somewhere. - */ -extern void __iomem *sbus_ioremap(struct resource *res, unsigned long offset, - unsigned long size, char *name); -extern void sbus_iounmap(volatile void __iomem *vaddr, unsigned long size); - - -/* - * At the moment, we do not use CMOS_READ anywhere outside of rtc.c, - * so rtc_port is static in it. This should not change unless a new - * hardware pops up. - */ -#define RTC_PORT(x) (rtc_port + (x)) -#define RTC_ALWAYS_BCD 0 - +#ifndef ___ASM_SPARC_IO_H +#define ___ASM_SPARC_IO_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1 - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -#endif /* !(__SPARC_IO_H) */ diff --git a/include/asm-sparc/io_32.h b/include/asm-sparc/io_32.h new file mode 100644 index 000000000000..c43af722ae8c --- /dev/null +++ b/include/asm-sparc/io_32.h @@ -0,0 +1,325 @@ +#ifndef __SPARC_IO_H +#define __SPARC_IO_H + +#include +#include +#include /* struct resource */ + +#include /* IO address mapping routines need this */ +#include + +#define page_to_phys(page) (((page) - mem_map) << PAGE_SHIFT) + +static inline u32 flip_dword (u32 l) +{ + return ((l&0xff)<<24) | (((l>>8)&0xff)<<16) | (((l>>16)&0xff)<<8)| ((l>>24)&0xff); +} + +static inline u16 flip_word (u16 w) +{ + return ((w&0xff) << 8) | ((w>>8)&0xff); +} + +#define mmiowb() + +/* + * Memory mapped I/O to PCI + */ + +static inline u8 __raw_readb(const volatile void __iomem *addr) +{ + return *(__force volatile u8 *)addr; +} + +static inline u16 __raw_readw(const volatile void __iomem *addr) +{ + return *(__force volatile u16 *)addr; +} + +static inline u32 __raw_readl(const volatile void __iomem *addr) +{ + return *(__force volatile u32 *)addr; +} + +static inline void __raw_writeb(u8 b, volatile void __iomem *addr) +{ + *(__force volatile u8 *)addr = b; +} + +static inline void __raw_writew(u16 w, volatile void __iomem *addr) +{ + *(__force volatile u16 *)addr = w; +} + +static inline void __raw_writel(u32 l, volatile void __iomem *addr) +{ + *(__force volatile u32 *)addr = l; +} + +static inline u8 __readb(const volatile void __iomem *addr) +{ + return *(__force volatile u8 *)addr; +} + +static inline u16 __readw(const volatile void __iomem *addr) +{ + return flip_word(*(__force volatile u16 *)addr); +} + +static inline u32 __readl(const volatile void __iomem *addr) +{ + return flip_dword(*(__force volatile u32 *)addr); +} + +static inline void __writeb(u8 b, volatile void __iomem *addr) +{ + *(__force volatile u8 *)addr = b; +} + +static inline void __writew(u16 w, volatile void __iomem *addr) +{ + *(__force volatile u16 *)addr = flip_word(w); +} + +static inline void __writel(u32 l, volatile void __iomem *addr) +{ + *(__force volatile u32 *)addr = flip_dword(l); +} + +#define readb(__addr) __readb(__addr) +#define readw(__addr) __readw(__addr) +#define readl(__addr) __readl(__addr) +#define readb_relaxed(__addr) readb(__addr) +#define readw_relaxed(__addr) readw(__addr) +#define readl_relaxed(__addr) readl(__addr) + +#define writeb(__b, __addr) __writeb((__b),(__addr)) +#define writew(__w, __addr) __writew((__w),(__addr)) +#define writel(__l, __addr) __writel((__l),(__addr)) + +/* + * I/O space operations + * + * Arrangement on a Sun is somewhat complicated. + * + * First of all, we want to use standard Linux drivers + * for keyboard, PC serial, etc. These drivers think + * they access I/O space and use inb/outb. + * On the other hand, EBus bridge accepts PCI *memory* + * cycles and converts them into ISA *I/O* cycles. + * Ergo, we want inb & outb to generate PCI memory cycles. + * + * If we want to issue PCI *I/O* cycles, we do this + * with a low 64K fixed window in PCIC. This window gets + * mapped somewhere into virtual kernel space and we + * can use inb/outb again. + */ +#define inb_local(__addr) __readb((void __iomem *)(unsigned long)(__addr)) +#define inb(__addr) __readb((void __iomem *)(unsigned long)(__addr)) +#define inw(__addr) __readw((void __iomem *)(unsigned long)(__addr)) +#define inl(__addr) __readl((void __iomem *)(unsigned long)(__addr)) + +#define outb_local(__b, __addr) __writeb(__b, (void __iomem *)(unsigned long)(__addr)) +#define outb(__b, __addr) __writeb(__b, (void __iomem *)(unsigned long)(__addr)) +#define outw(__w, __addr) __writew(__w, (void __iomem *)(unsigned long)(__addr)) +#define outl(__l, __addr) __writel(__l, (void __iomem *)(unsigned long)(__addr)) + +#define inb_p(__addr) inb(__addr) +#define outb_p(__b, __addr) outb(__b, __addr) +#define inw_p(__addr) inw(__addr) +#define outw_p(__w, __addr) outw(__w, __addr) +#define inl_p(__addr) inl(__addr) +#define outl_p(__l, __addr) outl(__l, __addr) + +void outsb(unsigned long addr, const void *src, unsigned long cnt); +void outsw(unsigned long addr, const void *src, unsigned long cnt); +void outsl(unsigned long addr, const void *src, unsigned long cnt); +void insb(unsigned long addr, void *dst, unsigned long count); +void insw(unsigned long addr, void *dst, unsigned long count); +void insl(unsigned long addr, void *dst, unsigned long count); + +#define IO_SPACE_LIMIT 0xffffffff + +/* + * SBus accessors. + * + * SBus has only one, memory mapped, I/O space. + * We do not need to flip bytes for SBus of course. + */ +static inline u8 _sbus_readb(const volatile void __iomem *addr) +{ + return *(__force volatile u8 *)addr; +} + +static inline u16 _sbus_readw(const volatile void __iomem *addr) +{ + return *(__force volatile u16 *)addr; +} + +static inline u32 _sbus_readl(const volatile void __iomem *addr) +{ + return *(__force volatile u32 *)addr; +} + +static inline void _sbus_writeb(u8 b, volatile void __iomem *addr) +{ + *(__force volatile u8 *)addr = b; +} + +static inline void _sbus_writew(u16 w, volatile void __iomem *addr) +{ + *(__force volatile u16 *)addr = w; +} + +static inline void _sbus_writel(u32 l, volatile void __iomem *addr) +{ + *(__force volatile u32 *)addr = l; +} + +/* + * The only reason for #define's is to hide casts to unsigned long. + */ +#define sbus_readb(__addr) _sbus_readb(__addr) +#define sbus_readw(__addr) _sbus_readw(__addr) +#define sbus_readl(__addr) _sbus_readl(__addr) +#define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr) +#define sbus_writew(__w, __addr) _sbus_writew(__w, __addr) +#define sbus_writel(__l, __addr) _sbus_writel(__l, __addr) + +static inline void sbus_memset_io(volatile void __iomem *__dst, int c, __kernel_size_t n) +{ + while(n--) { + sbus_writeb(c, __dst); + __dst++; + } +} + +static inline void +_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) +{ + volatile void __iomem *d = dst; + + while (n--) { + writeb(c, d); + d++; + } +} + +#define memset_io(d,c,sz) _memset_io(d,c,sz) + +static inline void +_memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n) +{ + char *d = dst; + + while (n--) { + char tmp = readb(src); + *d++ = tmp; + src++; + } +} + +#define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz) + +static inline void +_memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n) +{ + const char *s = src; + volatile void __iomem *d = dst; + + while (n--) { + char tmp = *s++; + writeb(tmp, d); + d++; + } +} + +#define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz) + +#ifdef __KERNEL__ + +/* + * Bus number may be embedded in the higher bits of the physical address. + * This is why we have no bus number argument to ioremap(). + */ +extern void __iomem *ioremap(unsigned long offset, unsigned long size); +#define ioremap_nocache(X,Y) ioremap((X),(Y)) +extern void iounmap(volatile void __iomem *addr); + +#define ioread8(X) readb(X) +#define ioread16(X) readw(X) +#define ioread32(X) readl(X) +#define iowrite8(val,X) writeb(val,X) +#define iowrite16(val,X) writew(val,X) +#define iowrite32(val,X) writel(val,X) + +static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count) +{ + insb((unsigned long __force)port, buf, count); +} +static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count) +{ + insw((unsigned long __force)port, buf, count); +} + +static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count) +{ + insl((unsigned long __force)port, buf, count); +} + +static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count) +{ + outsb((unsigned long __force)port, buf, count); +} + +static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count) +{ + outsw((unsigned long __force)port, buf, count); +} + +static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count) +{ + outsl((unsigned long __force)port, buf, count); +} + +/* Create a virtual mapping cookie for an IO port range */ +extern void __iomem *ioport_map(unsigned long port, unsigned int nr); +extern void ioport_unmap(void __iomem *); + +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ +struct pci_dev; +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +extern void pci_iounmap(struct pci_dev *dev, void __iomem *); + +/* + * Bus number may be in res->flags... somewhere. + */ +extern void __iomem *sbus_ioremap(struct resource *res, unsigned long offset, + unsigned long size, char *name); +extern void sbus_iounmap(volatile void __iomem *vaddr, unsigned long size); + + +/* + * At the moment, we do not use CMOS_READ anywhere outside of rtc.c, + * so rtc_port is static in it. This should not change unless a new + * hardware pops up. + */ +#define RTC_PORT(x) (rtc_port + (x)) +#define RTC_ALWAYS_BCD 0 + +#endif + +#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1 + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +/* + * Convert a virtual cached pointer to an uncached pointer + */ +#define xlate_dev_kmem_ptr(p) p + +#endif /* !(__SPARC_IO_H) */ diff --git a/include/asm-sparc/io_64.h b/include/asm-sparc/io_64.h new file mode 100644 index 000000000000..f4907414b39d --- /dev/null +++ b/include/asm-sparc/io_64.h @@ -0,0 +1,511 @@ +#ifndef __SPARC64_IO_H +#define __SPARC64_IO_H + +#include +#include +#include + +#include /* IO address mapping routines need this */ +#include +#include + +/* PC crapola... */ +#define __SLOW_DOWN_IO do { } while (0) +#define SLOW_DOWN_IO do { } while (0) + +/* BIO layer definitions. */ +extern unsigned long kern_base, kern_size; +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) +#define BIO_VMERGE_BOUNDARY 8192 + +static inline u8 _inb(unsigned long addr) +{ + u8 ret; + + __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_inb */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); + + return ret; +} + +static inline u16 _inw(unsigned long addr) +{ + u16 ret; + + __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_inw */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); + + return ret; +} + +static inline u32 _inl(unsigned long addr) +{ + u32 ret; + + __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); + + return ret; +} + +static inline void _outb(u8 b, unsigned long addr) +{ + __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */" + : /* no outputs */ + : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); +} + +static inline void _outw(u16 w, unsigned long addr) +{ + __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */" + : /* no outputs */ + : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); +} + +static inline void _outl(u32 l, unsigned long addr) +{ + __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */" + : /* no outputs */ + : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); +} + +#define inb(__addr) (_inb((unsigned long)(__addr))) +#define inw(__addr) (_inw((unsigned long)(__addr))) +#define inl(__addr) (_inl((unsigned long)(__addr))) +#define outb(__b, __addr) (_outb((u8)(__b), (unsigned long)(__addr))) +#define outw(__w, __addr) (_outw((u16)(__w), (unsigned long)(__addr))) +#define outl(__l, __addr) (_outl((u32)(__l), (unsigned long)(__addr))) + +#define inb_p(__addr) inb(__addr) +#define outb_p(__b, __addr) outb(__b, __addr) +#define inw_p(__addr) inw(__addr) +#define outw_p(__w, __addr) outw(__w, __addr) +#define inl_p(__addr) inl(__addr) +#define outl_p(__l, __addr) outl(__l, __addr) + +extern void outsb(unsigned long, const void *, unsigned long); +extern void outsw(unsigned long, const void *, unsigned long); +extern void outsl(unsigned long, const void *, unsigned long); +extern void insb(unsigned long, void *, unsigned long); +extern void insw(unsigned long, void *, unsigned long); +extern void insl(unsigned long, void *, unsigned long); + +static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count) +{ + insb((unsigned long __force)port, buf, count); +} +static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count) +{ + insw((unsigned long __force)port, buf, count); +} + +static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count) +{ + insl((unsigned long __force)port, buf, count); +} + +static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count) +{ + outsb((unsigned long __force)port, buf, count); +} + +static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count) +{ + outsw((unsigned long __force)port, buf, count); +} + +static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count) +{ + outsl((unsigned long __force)port, buf, count); +} + +/* Memory functions, same as I/O accesses on Ultra. */ +static inline u8 _readb(const volatile void __iomem *addr) +{ u8 ret; + + __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); + return ret; +} + +static inline u16 _readw(const volatile void __iomem *addr) +{ u16 ret; + + __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); + + return ret; +} + +static inline u32 _readl(const volatile void __iomem *addr) +{ u32 ret; + + __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); + + return ret; +} + +static inline u64 _readq(const volatile void __iomem *addr) +{ u64 ret; + + __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); + + return ret; +} + +static inline void _writeb(u8 b, volatile void __iomem *addr) +{ + __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */" + : /* no outputs */ + : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); +} + +static inline void _writew(u16 w, volatile void __iomem *addr) +{ + __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */" + : /* no outputs */ + : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); +} + +static inline void _writel(u32 l, volatile void __iomem *addr) +{ + __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */" + : /* no outputs */ + : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); +} + +static inline void _writeq(u64 q, volatile void __iomem *addr) +{ + __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */" + : /* no outputs */ + : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) + : "memory"); +} + +#define readb(__addr) _readb(__addr) +#define readw(__addr) _readw(__addr) +#define readl(__addr) _readl(__addr) +#define readq(__addr) _readq(__addr) +#define readb_relaxed(__addr) _readb(__addr) +#define readw_relaxed(__addr) _readw(__addr) +#define readl_relaxed(__addr) _readl(__addr) +#define readq_relaxed(__addr) _readq(__addr) +#define writeb(__b, __addr) _writeb(__b, __addr) +#define writew(__w, __addr) _writew(__w, __addr) +#define writel(__l, __addr) _writel(__l, __addr) +#define writeq(__q, __addr) _writeq(__q, __addr) + +/* Now versions without byte-swapping. */ +static inline u8 _raw_readb(unsigned long addr) +{ + u8 ret; + + __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_raw_readb */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline u16 _raw_readw(unsigned long addr) +{ + u16 ret; + + __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_raw_readw */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline u32 _raw_readl(unsigned long addr) +{ + u32 ret; + + __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_raw_readl */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline u64 _raw_readq(unsigned long addr) +{ + u64 ret; + + __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_raw_readq */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + + return ret; +} + +static inline void _raw_writeb(u8 b, unsigned long addr) +{ + __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_raw_writeb */" + : /* no outputs */ + : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +static inline void _raw_writew(u16 w, unsigned long addr) +{ + __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_raw_writew */" + : /* no outputs */ + : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +static inline void _raw_writel(u32 l, unsigned long addr) +{ + __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_raw_writel */" + : /* no outputs */ + : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +static inline void _raw_writeq(u64 q, unsigned long addr) +{ + __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_raw_writeq */" + : /* no outputs */ + : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +#define __raw_readb(__addr) (_raw_readb((unsigned long)(__addr))) +#define __raw_readw(__addr) (_raw_readw((unsigned long)(__addr))) +#define __raw_readl(__addr) (_raw_readl((unsigned long)(__addr))) +#define __raw_readq(__addr) (_raw_readq((unsigned long)(__addr))) +#define __raw_writeb(__b, __addr) (_raw_writeb((u8)(__b), (unsigned long)(__addr))) +#define __raw_writew(__w, __addr) (_raw_writew((u16)(__w), (unsigned long)(__addr))) +#define __raw_writel(__l, __addr) (_raw_writel((u32)(__l), (unsigned long)(__addr))) +#define __raw_writeq(__q, __addr) (_raw_writeq((u64)(__q), (unsigned long)(__addr))) + +/* Valid I/O Space regions are anywhere, because each PCI bus supported + * can live in an arbitrary area of the physical address range. + */ +#define IO_SPACE_LIMIT 0xffffffffffffffffUL + +/* Now, SBUS variants, only difference from PCI is that we do + * not use little-endian ASIs. + */ +static inline u8 _sbus_readb(const volatile void __iomem *addr) +{ + u8 ret; + + __asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); + + return ret; +} + +static inline u16 _sbus_readw(const volatile void __iomem *addr) +{ + u16 ret; + + __asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); + + return ret; +} + +static inline u32 _sbus_readl(const volatile void __iomem *addr) +{ + u32 ret; + + __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); + + return ret; +} + +static inline u64 _sbus_readq(const volatile void __iomem *addr) +{ + u64 ret; + + __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); + + return ret; +} + +static inline void _sbus_writeb(u8 b, volatile void __iomem *addr) +{ + __asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */" + : /* no outputs */ + : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); +} + +static inline void _sbus_writew(u16 w, volatile void __iomem *addr) +{ + __asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */" + : /* no outputs */ + : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); +} + +static inline void _sbus_writel(u32 l, volatile void __iomem *addr) +{ + __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */" + : /* no outputs */ + : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); +} + +static inline void _sbus_writeq(u64 l, volatile void __iomem *addr) +{ + __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */" + : /* no outputs */ + : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) + : "memory"); +} + +#define sbus_readb(__addr) _sbus_readb(__addr) +#define sbus_readw(__addr) _sbus_readw(__addr) +#define sbus_readl(__addr) _sbus_readl(__addr) +#define sbus_readq(__addr) _sbus_readq(__addr) +#define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr) +#define sbus_writew(__w, __addr) _sbus_writew(__w, __addr) +#define sbus_writel(__l, __addr) _sbus_writel(__l, __addr) +#define sbus_writeq(__l, __addr) _sbus_writeq(__l, __addr) + +static inline void _sbus_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) +{ + while(n--) { + sbus_writeb(c, dst); + dst++; + } +} + +#define sbus_memset_io(d,c,sz) _sbus_memset_io(d,c,sz) + +static inline void +_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) +{ + volatile void __iomem *d = dst; + + while (n--) { + writeb(c, d); + d++; + } +} + +#define memset_io(d,c,sz) _memset_io(d,c,sz) + +static inline void +_memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n) +{ + char *d = dst; + + while (n--) { + char tmp = readb(src); + *d++ = tmp; + src++; + } +} + +#define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz) + +static inline void +_memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n) +{ + const char *s = src; + volatile void __iomem *d = dst; + + while (n--) { + char tmp = *s++; + writeb(tmp, d); + d++; + } +} + +#define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz) + +#define mmiowb() + +#ifdef __KERNEL__ + +/* On sparc64 we have the whole physical IO address space accessible + * using physically addressed loads and stores, so this does nothing. + */ +static inline void __iomem *ioremap(unsigned long offset, unsigned long size) +{ + return (void __iomem *)offset; +} + +#define ioremap_nocache(X,Y) ioremap((X),(Y)) + +static inline void iounmap(volatile void __iomem *addr) +{ +} + +#define ioread8(X) readb(X) +#define ioread16(X) readw(X) +#define ioread32(X) readl(X) +#define iowrite8(val,X) writeb(val,X) +#define iowrite16(val,X) writew(val,X) +#define iowrite32(val,X) writel(val,X) + +/* Create a virtual mapping cookie for an IO port range */ +extern void __iomem *ioport_map(unsigned long port, unsigned int nr); +extern void ioport_unmap(void __iomem *); + +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ +struct pci_dev; +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +extern void pci_iounmap(struct pci_dev *dev, void __iomem *); + +/* Similarly for SBUS. */ +#define sbus_ioremap(__res, __offset, __size, __name) \ +({ unsigned long __ret; \ + __ret = (__res)->start + (((__res)->flags & 0x1ffUL) << 32UL); \ + __ret += (unsigned long) (__offset); \ + if (! request_region((__ret), (__size), (__name))) \ + __ret = 0UL; \ + (void __iomem *) __ret; \ +}) + +#define sbus_iounmap(__addr, __size) \ + release_region((unsigned long)(__addr), (__size)) + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +/* + * Convert a virtual cached pointer to an uncached pointer + */ +#define xlate_dev_kmem_ptr(p) p + +#endif + +#endif /* !(__SPARC64_IO_H) */ diff --git a/include/asm-sparc/iommu.h b/include/asm-sparc/iommu.h index 70c589c05a10..91b072b0d7a0 100644 --- a/include/asm-sparc/iommu.h +++ b/include/asm-sparc/iommu.h @@ -1,121 +1,8 @@ -/* iommu.h: Definitions for the sun4m IOMMU. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ -#ifndef _SPARC_IOMMU_H -#define _SPARC_IOMMU_H - -#include -#include - -/* The iommu handles all virtual to physical address translations - * that occur between the SBUS and physical memory. Access by - * the cpu to IO registers and similar go over the mbus so are - * translated by the on chip SRMMU. The iommu and the srmmu do - * not need to have the same translations at all, in fact most - * of the time the translations they handle are a disjunct set. - * Basically the iommu handles all dvma sbus activity. - */ - -/* The IOMMU registers occupy three pages in IO space. */ -struct iommu_regs { - /* First page */ - volatile unsigned long control; /* IOMMU control */ - volatile unsigned long base; /* Physical base of iopte page table */ - volatile unsigned long _unused1[3]; - volatile unsigned long tlbflush; /* write only */ - volatile unsigned long pageflush; /* write only */ - volatile unsigned long _unused2[1017]; - /* Second page */ - volatile unsigned long afsr; /* Async-fault status register */ - volatile unsigned long afar; /* Async-fault physical address */ - volatile unsigned long _unused3[2]; - volatile unsigned long sbuscfg0; /* SBUS configuration registers, per-slot */ - volatile unsigned long sbuscfg1; - volatile unsigned long sbuscfg2; - volatile unsigned long sbuscfg3; - volatile unsigned long mfsr; /* Memory-fault status register */ - volatile unsigned long mfar; /* Memory-fault physical address */ - volatile unsigned long _unused4[1014]; - /* Third page */ - volatile unsigned long mid; /* IOMMU module-id */ -}; - -#define IOMMU_CTRL_IMPL 0xf0000000 /* Implementation */ -#define IOMMU_CTRL_VERS 0x0f000000 /* Version */ -#define IOMMU_CTRL_RNGE 0x0000001c /* Mapping RANGE */ -#define IOMMU_RNGE_16MB 0x00000000 /* 0xff000000 -> 0xffffffff */ -#define IOMMU_RNGE_32MB 0x00000004 /* 0xfe000000 -> 0xffffffff */ -#define IOMMU_RNGE_64MB 0x00000008 /* 0xfc000000 -> 0xffffffff */ -#define IOMMU_RNGE_128MB 0x0000000c /* 0xf8000000 -> 0xffffffff */ -#define IOMMU_RNGE_256MB 0x00000010 /* 0xf0000000 -> 0xffffffff */ -#define IOMMU_RNGE_512MB 0x00000014 /* 0xe0000000 -> 0xffffffff */ -#define IOMMU_RNGE_1GB 0x00000018 /* 0xc0000000 -> 0xffffffff */ -#define IOMMU_RNGE_2GB 0x0000001c /* 0x80000000 -> 0xffffffff */ -#define IOMMU_CTRL_ENAB 0x00000001 /* IOMMU Enable */ - -#define IOMMU_AFSR_ERR 0x80000000 /* LE, TO, or BE asserted */ -#define IOMMU_AFSR_LE 0x40000000 /* SBUS reports error after transaction */ -#define IOMMU_AFSR_TO 0x20000000 /* Write access took more than 12.8 us. */ -#define IOMMU_AFSR_BE 0x10000000 /* Write access received error acknowledge */ -#define IOMMU_AFSR_SIZE 0x0e000000 /* Size of transaction causing error */ -#define IOMMU_AFSR_S 0x01000000 /* Sparc was in supervisor mode */ -#define IOMMU_AFSR_RESV 0x00f00000 /* Reserver, forced to 0x8 by hardware */ -#define IOMMU_AFSR_ME 0x00080000 /* Multiple errors occurred */ -#define IOMMU_AFSR_RD 0x00040000 /* A read operation was in progress */ -#define IOMMU_AFSR_FAV 0x00020000 /* IOMMU afar has valid contents */ - -#define IOMMU_SBCFG_SAB30 0x00010000 /* Phys-address bit 30 when bypass enabled */ -#define IOMMU_SBCFG_BA16 0x00000004 /* Slave supports 16 byte bursts */ -#define IOMMU_SBCFG_BA8 0x00000002 /* Slave supports 8 byte bursts */ -#define IOMMU_SBCFG_BYPASS 0x00000001 /* Bypass IOMMU, treat all addresses - produced by this device as pure - physical. */ - -#define IOMMU_MFSR_ERR 0x80000000 /* One or more of PERR1 or PERR0 */ -#define IOMMU_MFSR_S 0x01000000 /* Sparc was in supervisor mode */ -#define IOMMU_MFSR_CPU 0x00800000 /* CPU transaction caused parity error */ -#define IOMMU_MFSR_ME 0x00080000 /* Multiple parity errors occurred */ -#define IOMMU_MFSR_PERR 0x00006000 /* high bit indicates parity error occurred - on the even word of the access, low bit - indicated odd word caused the parity error */ -#define IOMMU_MFSR_BM 0x00001000 /* Error occurred while in boot mode */ -#define IOMMU_MFSR_C 0x00000800 /* Address causing error was marked cacheable */ -#define IOMMU_MFSR_RTYP 0x000000f0 /* Memory request transaction type */ - -#define IOMMU_MID_SBAE 0x001f0000 /* SBus arbitration enable */ -#define IOMMU_MID_SE 0x00100000 /* Enables SCSI/ETHERNET arbitration */ -#define IOMMU_MID_SB3 0x00080000 /* Enable SBUS device 3 arbitration */ -#define IOMMU_MID_SB2 0x00040000 /* Enable SBUS device 2 arbitration */ -#define IOMMU_MID_SB1 0x00020000 /* Enable SBUS device 1 arbitration */ -#define IOMMU_MID_SB0 0x00010000 /* Enable SBUS device 0 arbitration */ -#define IOMMU_MID_MID 0x0000000f /* Module-id, hardcoded to 0x8 */ - -/* The format of an iopte in the page tables */ -#define IOPTE_PAGE 0x07ffff00 /* Physical page number (PA[30:12]) */ -#define IOPTE_CACHE 0x00000080 /* Cached (in vme IOCACHE or Viking/MXCC) */ -#define IOPTE_WRITE 0x00000004 /* Writeable */ -#define IOPTE_VALID 0x00000002 /* IOPTE is valid */ -#define IOPTE_WAZ 0x00000001 /* Write as zeros */ - -struct iommu_struct { - struct iommu_regs *regs; - iopte_t *page_table; - /* For convenience */ - unsigned long start; /* First managed virtual address */ - unsigned long end; /* Last managed virtual address */ - - struct bit_map usemap; -}; - -static inline void iommu_invalidate(struct iommu_regs *regs) -{ - regs->tlbflush = 0; -} - -static inline void iommu_invalidate_page(struct iommu_regs *regs, unsigned long ba) -{ - regs->pageflush = (ba & PAGE_MASK); -} - -#endif /* !(_SPARC_IOMMU_H) */ +#ifndef ___ASM_SPARC_IOMMU_H +#define ___ASM_SPARC_IOMMU_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/iommu_32.h b/include/asm-sparc/iommu_32.h new file mode 100644 index 000000000000..70c589c05a10 --- /dev/null +++ b/include/asm-sparc/iommu_32.h @@ -0,0 +1,121 @@ +/* iommu.h: Definitions for the sun4m IOMMU. + * + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + */ +#ifndef _SPARC_IOMMU_H +#define _SPARC_IOMMU_H + +#include +#include + +/* The iommu handles all virtual to physical address translations + * that occur between the SBUS and physical memory. Access by + * the cpu to IO registers and similar go over the mbus so are + * translated by the on chip SRMMU. The iommu and the srmmu do + * not need to have the same translations at all, in fact most + * of the time the translations they handle are a disjunct set. + * Basically the iommu handles all dvma sbus activity. + */ + +/* The IOMMU registers occupy three pages in IO space. */ +struct iommu_regs { + /* First page */ + volatile unsigned long control; /* IOMMU control */ + volatile unsigned long base; /* Physical base of iopte page table */ + volatile unsigned long _unused1[3]; + volatile unsigned long tlbflush; /* write only */ + volatile unsigned long pageflush; /* write only */ + volatile unsigned long _unused2[1017]; + /* Second page */ + volatile unsigned long afsr; /* Async-fault status register */ + volatile unsigned long afar; /* Async-fault physical address */ + volatile unsigned long _unused3[2]; + volatile unsigned long sbuscfg0; /* SBUS configuration registers, per-slot */ + volatile unsigned long sbuscfg1; + volatile unsigned long sbuscfg2; + volatile unsigned long sbuscfg3; + volatile unsigned long mfsr; /* Memory-fault status register */ + volatile unsigned long mfar; /* Memory-fault physical address */ + volatile unsigned long _unused4[1014]; + /* Third page */ + volatile unsigned long mid; /* IOMMU module-id */ +}; + +#define IOMMU_CTRL_IMPL 0xf0000000 /* Implementation */ +#define IOMMU_CTRL_VERS 0x0f000000 /* Version */ +#define IOMMU_CTRL_RNGE 0x0000001c /* Mapping RANGE */ +#define IOMMU_RNGE_16MB 0x00000000 /* 0xff000000 -> 0xffffffff */ +#define IOMMU_RNGE_32MB 0x00000004 /* 0xfe000000 -> 0xffffffff */ +#define IOMMU_RNGE_64MB 0x00000008 /* 0xfc000000 -> 0xffffffff */ +#define IOMMU_RNGE_128MB 0x0000000c /* 0xf8000000 -> 0xffffffff */ +#define IOMMU_RNGE_256MB 0x00000010 /* 0xf0000000 -> 0xffffffff */ +#define IOMMU_RNGE_512MB 0x00000014 /* 0xe0000000 -> 0xffffffff */ +#define IOMMU_RNGE_1GB 0x00000018 /* 0xc0000000 -> 0xffffffff */ +#define IOMMU_RNGE_2GB 0x0000001c /* 0x80000000 -> 0xffffffff */ +#define IOMMU_CTRL_ENAB 0x00000001 /* IOMMU Enable */ + +#define IOMMU_AFSR_ERR 0x80000000 /* LE, TO, or BE asserted */ +#define IOMMU_AFSR_LE 0x40000000 /* SBUS reports error after transaction */ +#define IOMMU_AFSR_TO 0x20000000 /* Write access took more than 12.8 us. */ +#define IOMMU_AFSR_BE 0x10000000 /* Write access received error acknowledge */ +#define IOMMU_AFSR_SIZE 0x0e000000 /* Size of transaction causing error */ +#define IOMMU_AFSR_S 0x01000000 /* Sparc was in supervisor mode */ +#define IOMMU_AFSR_RESV 0x00f00000 /* Reserver, forced to 0x8 by hardware */ +#define IOMMU_AFSR_ME 0x00080000 /* Multiple errors occurred */ +#define IOMMU_AFSR_RD 0x00040000 /* A read operation was in progress */ +#define IOMMU_AFSR_FAV 0x00020000 /* IOMMU afar has valid contents */ + +#define IOMMU_SBCFG_SAB30 0x00010000 /* Phys-address bit 30 when bypass enabled */ +#define IOMMU_SBCFG_BA16 0x00000004 /* Slave supports 16 byte bursts */ +#define IOMMU_SBCFG_BA8 0x00000002 /* Slave supports 8 byte bursts */ +#define IOMMU_SBCFG_BYPASS 0x00000001 /* Bypass IOMMU, treat all addresses + produced by this device as pure + physical. */ + +#define IOMMU_MFSR_ERR 0x80000000 /* One or more of PERR1 or PERR0 */ +#define IOMMU_MFSR_S 0x01000000 /* Sparc was in supervisor mode */ +#define IOMMU_MFSR_CPU 0x00800000 /* CPU transaction caused parity error */ +#define IOMMU_MFSR_ME 0x00080000 /* Multiple parity errors occurred */ +#define IOMMU_MFSR_PERR 0x00006000 /* high bit indicates parity error occurred + on the even word of the access, low bit + indicated odd word caused the parity error */ +#define IOMMU_MFSR_BM 0x00001000 /* Error occurred while in boot mode */ +#define IOMMU_MFSR_C 0x00000800 /* Address causing error was marked cacheable */ +#define IOMMU_MFSR_RTYP 0x000000f0 /* Memory request transaction type */ + +#define IOMMU_MID_SBAE 0x001f0000 /* SBus arbitration enable */ +#define IOMMU_MID_SE 0x00100000 /* Enables SCSI/ETHERNET arbitration */ +#define IOMMU_MID_SB3 0x00080000 /* Enable SBUS device 3 arbitration */ +#define IOMMU_MID_SB2 0x00040000 /* Enable SBUS device 2 arbitration */ +#define IOMMU_MID_SB1 0x00020000 /* Enable SBUS device 1 arbitration */ +#define IOMMU_MID_SB0 0x00010000 /* Enable SBUS device 0 arbitration */ +#define IOMMU_MID_MID 0x0000000f /* Module-id, hardcoded to 0x8 */ + +/* The format of an iopte in the page tables */ +#define IOPTE_PAGE 0x07ffff00 /* Physical page number (PA[30:12]) */ +#define IOPTE_CACHE 0x00000080 /* Cached (in vme IOCACHE or Viking/MXCC) */ +#define IOPTE_WRITE 0x00000004 /* Writeable */ +#define IOPTE_VALID 0x00000002 /* IOPTE is valid */ +#define IOPTE_WAZ 0x00000001 /* Write as zeros */ + +struct iommu_struct { + struct iommu_regs *regs; + iopte_t *page_table; + /* For convenience */ + unsigned long start; /* First managed virtual address */ + unsigned long end; /* Last managed virtual address */ + + struct bit_map usemap; +}; + +static inline void iommu_invalidate(struct iommu_regs *regs) +{ + regs->tlbflush = 0; +} + +static inline void iommu_invalidate_page(struct iommu_regs *regs, unsigned long ba) +{ + regs->pageflush = (ba & PAGE_MASK); +} + +#endif /* !(_SPARC_IOMMU_H) */ diff --git a/include/asm-sparc/iommu_64.h b/include/asm-sparc/iommu_64.h new file mode 100644 index 000000000000..d7b9afcba08b --- /dev/null +++ b/include/asm-sparc/iommu_64.h @@ -0,0 +1,62 @@ +/* iommu.h: Definitions for the sun5 IOMMU. + * + * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net) + */ +#ifndef _SPARC64_IOMMU_H +#define _SPARC64_IOMMU_H + +/* The format of an iopte in the page tables. */ +#define IOPTE_VALID 0x8000000000000000UL +#define IOPTE_64K 0x2000000000000000UL +#define IOPTE_STBUF 0x1000000000000000UL +#define IOPTE_INTRA 0x0800000000000000UL +#define IOPTE_CONTEXT 0x07ff800000000000UL +#define IOPTE_PAGE 0x00007fffffffe000UL +#define IOPTE_CACHE 0x0000000000000010UL +#define IOPTE_WRITE 0x0000000000000002UL + +#define IOMMU_NUM_CTXS 4096 + +struct iommu_arena { + unsigned long *map; + unsigned int hint; + unsigned int limit; +}; + +struct iommu { + spinlock_t lock; + struct iommu_arena arena; + void (*flush_all)(struct iommu *); + iopte_t *page_table; + u32 page_table_map_base; + unsigned long iommu_control; + unsigned long iommu_tsbbase; + unsigned long iommu_flush; + unsigned long iommu_flushinv; + unsigned long iommu_tags; + unsigned long iommu_ctxflush; + unsigned long write_complete_reg; + unsigned long dummy_page; + unsigned long dummy_page_pa; + unsigned long ctx_lowest_free; + DECLARE_BITMAP(ctx_bitmap, IOMMU_NUM_CTXS); + u32 dma_addr_mask; +}; + +struct strbuf { + int strbuf_enabled; + unsigned long strbuf_control; + unsigned long strbuf_pflush; + unsigned long strbuf_fsync; + unsigned long strbuf_ctxflush; + unsigned long strbuf_ctxmatch_base; + unsigned long strbuf_flushflag_pa; + volatile unsigned long *strbuf_flushflag; + volatile unsigned long __flushflag_buf[(64+(64-1)) / sizeof(long)]; +}; + +extern int iommu_table_init(struct iommu *iommu, int tsbsize, + u32 dma_offset, u32 dma_addr_mask, + int numa_node); + +#endif /* !(_SPARC64_IOMMU_H) */ diff --git a/include/asm-sparc/ipcbuf.h b/include/asm-sparc/ipcbuf.h index 9bef02d04e4b..037605d986e2 100644 --- a/include/asm-sparc/ipcbuf.h +++ b/include/asm-sparc/ipcbuf.h @@ -1,31 +1,8 @@ -#ifndef _SPARC_IPCBUF_H -#define _SPARC_IPCBUF_H - -/* - * The ipc64_perm structure for sparc architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 32-bit mode - * - 32-bit seq - * - 2 miscellaneous 64-bit values (so that this structure matches - * sparc64 ipc64_perm) - */ - -struct ipc64_perm -{ - __kernel_key_t key; - __kernel_uid32_t uid; - __kernel_gid32_t gid; - __kernel_uid32_t cuid; - __kernel_gid32_t cgid; - unsigned short __pad1; - __kernel_mode_t mode; - unsigned short __pad2; - unsigned short seq; - unsigned long long __unused1; - unsigned long long __unused2; -}; - -#endif /* _SPARC_IPCBUF_H */ +#ifndef ___ASM_SPARC_IPCBUF_H +#define ___ASM_SPARC_IPCBUF_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/ipcbuf_32.h b/include/asm-sparc/ipcbuf_32.h new file mode 100644 index 000000000000..6387209518f2 --- /dev/null +++ b/include/asm-sparc/ipcbuf_32.h @@ -0,0 +1,31 @@ +#ifndef _SPARC_IPCBUF_H +#define _SPARC_IPCBUF_H + +/* + * The ipc64_perm structure for sparc architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 32-bit mode + * - 32-bit seq + * - 2 miscellaneous 64-bit values (so that this structure matches + * sparc64 ipc64_perm) + */ + +struct ipc64_perm +{ + __kernel_key_t key; + __kernel_uid32_t uid; + __kernel_gid32_t gid; + __kernel_uid32_t cuid; + __kernel_gid32_t cgid; + unsigned short __pad1; + __kernel_mode_t mode; + unsigned short __pad2; + unsigned short seq; + unsigned long long __unused1; + unsigned long long __unused2; +}; + +#endif /* _SPARC_IPCBUF_H */ diff --git a/include/asm-sparc/ipcbuf_64.h b/include/asm-sparc/ipcbuf_64.h new file mode 100644 index 000000000000..a44b855b98db --- /dev/null +++ b/include/asm-sparc/ipcbuf_64.h @@ -0,0 +1,28 @@ +#ifndef _SPARC64_IPCBUF_H +#define _SPARC64_IPCBUF_H + +/* + * The ipc64_perm structure for sparc64 architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 32-bit seq + * - 2 miscellaneous 64-bit values + */ + +struct ipc64_perm +{ + __kernel_key_t key; + __kernel_uid_t uid; + __kernel_gid_t gid; + __kernel_uid_t cuid; + __kernel_gid_t cgid; + __kernel_mode_t mode; + unsigned short __pad1; + unsigned short seq; + unsigned long __unused1; + unsigned long __unused2; +}; + +#endif /* _SPARC64_IPCBUF_H */ diff --git a/include/asm-sparc/irq.h b/include/asm-sparc/irq.h index fe205cc444b8..7af6bb4aa09c 100644 --- a/include/asm-sparc/irq.h +++ b/include/asm-sparc/irq.h @@ -1,15 +1,8 @@ -/* irq.h: IRQ registers on the Sparc. - * - * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) - */ - -#ifndef _SPARC_IRQ_H -#define _SPARC_IRQ_H - -#include - -#define NR_IRQS 16 - -#define irq_canonicalize(irq) (irq) - +#ifndef ___ASM_SPARC_IRQ_H +#define ___ASM_SPARC_IRQ_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif diff --git a/include/asm-sparc/irq_32.h b/include/asm-sparc/irq_32.h new file mode 100644 index 000000000000..fe205cc444b8 --- /dev/null +++ b/include/asm-sparc/irq_32.h @@ -0,0 +1,15 @@ +/* irq.h: IRQ registers on the Sparc. + * + * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) + */ + +#ifndef _SPARC_IRQ_H +#define _SPARC_IRQ_H + +#include + +#define NR_IRQS 16 + +#define irq_canonicalize(irq) (irq) + +#endif diff --git a/include/asm-sparc/irq_64.h b/include/asm-sparc/irq_64.h new file mode 100644 index 000000000000..0bb9bf531745 --- /dev/null +++ b/include/asm-sparc/irq_64.h @@ -0,0 +1,93 @@ +/* irq.h: IRQ registers on the 64-bit Sparc. + * + * Copyright (C) 1996 David S. Miller (davem@davemloft.net) + * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) + */ + +#ifndef _SPARC64_IRQ_H +#define _SPARC64_IRQ_H + +#include +#include +#include +#include +#include +#include + +/* IMAP/ICLR register defines */ +#define IMAP_VALID 0x80000000UL /* IRQ Enabled */ +#define IMAP_TID_UPA 0x7c000000UL /* UPA TargetID */ +#define IMAP_TID_JBUS 0x7c000000UL /* JBUS TargetID */ +#define IMAP_TID_SHIFT 26 +#define IMAP_AID_SAFARI 0x7c000000UL /* Safari AgentID */ +#define IMAP_AID_SHIFT 26 +#define IMAP_NID_SAFARI 0x03e00000UL /* Safari NodeID */ +#define IMAP_NID_SHIFT 21 +#define IMAP_IGN 0x000007c0UL /* IRQ Group Number */ +#define IMAP_INO 0x0000003fUL /* IRQ Number */ +#define IMAP_INR 0x000007ffUL /* Full interrupt number*/ + +#define ICLR_IDLE 0x00000000UL /* Idle state */ +#define ICLR_TRANSMIT 0x00000001UL /* Transmit state */ +#define ICLR_PENDING 0x00000003UL /* Pending state */ + +/* The largest number of unique interrupt sources we support. + * If this needs to ever be larger than 255, you need to change + * the type of ino_bucket->virt_irq as appropriate. + * + * ino_bucket->virt_irq allocation is made during {sun4v_,}build_irq(). + */ +#define NR_IRQS 255 + +extern void irq_install_pre_handler(int virt_irq, + void (*func)(unsigned int, void *, void *), + void *arg1, void *arg2); +#define irq_canonicalize(irq) (irq) +extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap); +extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino); +extern unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino); +extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p, + unsigned int msi_devino_start, + unsigned int msi_devino_end); +extern void sun4v_destroy_msi(unsigned int virt_irq); +extern unsigned int sun4u_build_msi(u32 portid, unsigned int *virt_irq_p, + unsigned int msi_devino_start, + unsigned int msi_devino_end, + unsigned long imap_base, + unsigned long iclr_base); +extern void sun4u_destroy_msi(unsigned int virt_irq); +extern unsigned int sbus_build_irq(void *sbus, unsigned int ino); + +extern unsigned char virt_irq_alloc(unsigned int dev_handle, + unsigned int dev_ino); +#ifdef CONFIG_PCI_MSI +extern void virt_irq_free(unsigned int virt_irq); +#endif + +extern void __init init_IRQ(void); +extern void fixup_irqs(void); + +static inline void set_softint(unsigned long bits) +{ + __asm__ __volatile__("wr %0, 0x0, %%set_softint" + : /* No outputs */ + : "r" (bits)); +} + +static inline void clear_softint(unsigned long bits) +{ + __asm__ __volatile__("wr %0, 0x0, %%clear_softint" + : /* No outputs */ + : "r" (bits)); +} + +static inline unsigned long get_softint(void) +{ + unsigned long retval; + + __asm__ __volatile__("rd %%softint, %0" + : "=r" (retval)); + return retval; +} + +#endif diff --git a/include/asm-sparc/irqflags.h b/include/asm-sparc/irqflags.h index db398fb32826..c6402b187e23 100644 --- a/include/asm-sparc/irqflags.h +++ b/include/asm-sparc/irqflags.h @@ -1,39 +1,8 @@ -/* - * include/asm-sparc/irqflags.h - * - * IRQ flags handling - * - * This file gets included from lowlevel asm headers too, to provide - * wrapped versions of the local_irq_*() APIs, based on the - * raw_local_irq_*() functions from the lowlevel headers. - */ -#ifndef _ASM_IRQFLAGS_H -#define _ASM_IRQFLAGS_H - -#ifndef __ASSEMBLY__ - -extern void raw_local_irq_restore(unsigned long); -extern unsigned long __raw_local_irq_save(void); -extern void raw_local_irq_enable(void); - -static inline unsigned long getipl(void) -{ - unsigned long retval; - - __asm__ __volatile__("rd %%psr, %0" : "=r" (retval)); - return retval; -} - -#define raw_local_save_flags(flags) ((flags) = getipl()) -#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save()) -#define raw_local_irq_disable() ((void) __raw_local_irq_save()) -#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0) - -static inline int raw_irqs_disabled_flags(unsigned long flags) -{ - return ((flags & PSR_PIL) != 0); -} - -#endif /* (__ASSEMBLY__) */ - -#endif /* !(_ASM_IRQFLAGS_H) */ +#ifndef ___ASM_SPARC_IRQFLAGS_H +#define ___ASM_SPARC_IRQFLAGS_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/irqflags_32.h b/include/asm-sparc/irqflags_32.h new file mode 100644 index 000000000000..db398fb32826 --- /dev/null +++ b/include/asm-sparc/irqflags_32.h @@ -0,0 +1,39 @@ +/* + * include/asm-sparc/irqflags.h + * + * IRQ flags handling + * + * This file gets included from lowlevel asm headers too, to provide + * wrapped versions of the local_irq_*() APIs, based on the + * raw_local_irq_*() functions from the lowlevel headers. + */ +#ifndef _ASM_IRQFLAGS_H +#define _ASM_IRQFLAGS_H + +#ifndef __ASSEMBLY__ + +extern void raw_local_irq_restore(unsigned long); +extern unsigned long __raw_local_irq_save(void); +extern void raw_local_irq_enable(void); + +static inline unsigned long getipl(void) +{ + unsigned long retval; + + __asm__ __volatile__("rd %%psr, %0" : "=r" (retval)); + return retval; +} + +#define raw_local_save_flags(flags) ((flags) = getipl()) +#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save()) +#define raw_local_irq_disable() ((void) __raw_local_irq_save()) +#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0) + +static inline int raw_irqs_disabled_flags(unsigned long flags) +{ + return ((flags & PSR_PIL) != 0); +} + +#endif /* (__ASSEMBLY__) */ + +#endif /* !(_ASM_IRQFLAGS_H) */ diff --git a/include/asm-sparc/irqflags_64.h b/include/asm-sparc/irqflags_64.h new file mode 100644 index 000000000000..024fc54d0682 --- /dev/null +++ b/include/asm-sparc/irqflags_64.h @@ -0,0 +1,89 @@ +/* + * include/asm-sparc64/irqflags.h + * + * IRQ flags handling + * + * This file gets included from lowlevel asm headers too, to provide + * wrapped versions of the local_irq_*() APIs, based on the + * raw_local_irq_*() functions from the lowlevel headers. + */ +#ifndef _ASM_IRQFLAGS_H +#define _ASM_IRQFLAGS_H + +#ifndef __ASSEMBLY__ + +static inline unsigned long __raw_local_save_flags(void) +{ + unsigned long flags; + + __asm__ __volatile__( + "rdpr %%pil, %0" + : "=r" (flags) + ); + + return flags; +} + +#define raw_local_save_flags(flags) \ + do { (flags) = __raw_local_save_flags(); } while (0) + +static inline void raw_local_irq_restore(unsigned long flags) +{ + __asm__ __volatile__( + "wrpr %0, %%pil" + : /* no output */ + : "r" (flags) + : "memory" + ); +} + +static inline void raw_local_irq_disable(void) +{ + __asm__ __volatile__( + "wrpr 15, %%pil" + : /* no outputs */ + : /* no inputs */ + : "memory" + ); +} + +static inline void raw_local_irq_enable(void) +{ + __asm__ __volatile__( + "wrpr 0, %%pil" + : /* no outputs */ + : /* no inputs */ + : "memory" + ); +} + +static inline int raw_irqs_disabled_flags(unsigned long flags) +{ + return (flags > 0); +} + +static inline int raw_irqs_disabled(void) +{ + unsigned long flags = __raw_local_save_flags(); + + return raw_irqs_disabled_flags(flags); +} + +/* + * For spinlocks, etc: + */ +static inline unsigned long __raw_local_irq_save(void) +{ + unsigned long flags = __raw_local_save_flags(); + + raw_local_irq_disable(); + + return flags; +} + +#define raw_local_irq_save(flags) \ + do { (flags) = __raw_local_irq_save(); } while (0) + +#endif /* (__ASSEMBLY__) */ + +#endif /* !(_ASM_IRQFLAGS_H) */ diff --git a/include/asm-sparc/kdebug.h b/include/asm-sparc/kdebug.h index f69fe7d84b3c..fe07d00d0534 100644 --- a/include/asm-sparc/kdebug.h +++ b/include/asm-sparc/kdebug.h @@ -1,73 +1,8 @@ -/* - * kdebug.h: Defines and definitions for debugging the Linux kernel - * under various kernel debuggers. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ -#ifndef _SPARC_KDEBUG_H -#define _SPARC_KDEBUG_H - -#include -#include - -/* Breakpoints are enter through trap table entry 126. So in sparc assembly - * if you want to drop into the debugger you do: - * - * t DEBUG_BP_TRAP - */ - -#define DEBUG_BP_TRAP 126 - -#ifndef __ASSEMBLY__ -/* The debug vector is passed in %o1 at boot time. It is a pointer to - * a structure in the debuggers address space. Here is its format. - */ - -typedef unsigned int (*debugger_funct)(void); - -struct kernel_debug { - /* First the entry point into the debugger. You jump here - * to give control over to the debugger. - */ - unsigned long kdebug_entry; - unsigned long kdebug_trapme; /* Figure out later... */ - /* The following is the number of pages that the debugger has - * taken from to total pool. - */ - unsigned long *kdebug_stolen_pages; - /* Ok, after you remap yourself and/or change the trap table - * from what you were left with at boot time you have to call - * this synchronization function so the debugger can check out - * what you have done. - */ - debugger_funct teach_debugger; -}; /* I think that is it... */ - -extern struct kernel_debug *linux_dbvec; - -/* Use this macro in C-code to enter the debugger. */ -static inline void sp_enter_debugger(void) -{ - __asm__ __volatile__("jmpl %0, %%o7\n\t" - "nop\n\t" : : - "r" (linux_dbvec) : "o7", "memory"); -} - -#define SP_ENTER_DEBUGGER do { \ - if((linux_dbvec!=0) && ((*(short *)linux_dbvec)!=-1)) \ - sp_enter_debugger(); \ - } while(0) - -enum die_val { - DIE_UNUSED, -}; - -#endif /* !(__ASSEMBLY__) */ - -/* Some nice offset defines for assembler code. */ -#define KDEBUG_ENTRY_OFF 0x0 -#define KDEBUG_DUNNO_OFF 0x4 -#define KDEBUG_DUNNO2_OFF 0x8 -#define KDEBUG_TEACH_OFF 0xc - -#endif /* !(_SPARC_KDEBUG_H) */ +#ifndef ___ASM_SPARC_KDEBUG_H +#define ___ASM_SPARC_KDEBUG_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/kdebug_32.h b/include/asm-sparc/kdebug_32.h new file mode 100644 index 000000000000..f69fe7d84b3c --- /dev/null +++ b/include/asm-sparc/kdebug_32.h @@ -0,0 +1,73 @@ +/* + * kdebug.h: Defines and definitions for debugging the Linux kernel + * under various kernel debuggers. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ +#ifndef _SPARC_KDEBUG_H +#define _SPARC_KDEBUG_H + +#include +#include + +/* Breakpoints are enter through trap table entry 126. So in sparc assembly + * if you want to drop into the debugger you do: + * + * t DEBUG_BP_TRAP + */ + +#define DEBUG_BP_TRAP 126 + +#ifndef __ASSEMBLY__ +/* The debug vector is passed in %o1 at boot time. It is a pointer to + * a structure in the debuggers address space. Here is its format. + */ + +typedef unsigned int (*debugger_funct)(void); + +struct kernel_debug { + /* First the entry point into the debugger. You jump here + * to give control over to the debugger. + */ + unsigned long kdebug_entry; + unsigned long kdebug_trapme; /* Figure out later... */ + /* The following is the number of pages that the debugger has + * taken from to total pool. + */ + unsigned long *kdebug_stolen_pages; + /* Ok, after you remap yourself and/or change the trap table + * from what you were left with at boot time you have to call + * this synchronization function so the debugger can check out + * what you have done. + */ + debugger_funct teach_debugger; +}; /* I think that is it... */ + +extern struct kernel_debug *linux_dbvec; + +/* Use this macro in C-code to enter the debugger. */ +static inline void sp_enter_debugger(void) +{ + __asm__ __volatile__("jmpl %0, %%o7\n\t" + "nop\n\t" : : + "r" (linux_dbvec) : "o7", "memory"); +} + +#define SP_ENTER_DEBUGGER do { \ + if((linux_dbvec!=0) && ((*(short *)linux_dbvec)!=-1)) \ + sp_enter_debugger(); \ + } while(0) + +enum die_val { + DIE_UNUSED, +}; + +#endif /* !(__ASSEMBLY__) */ + +/* Some nice offset defines for assembler code. */ +#define KDEBUG_ENTRY_OFF 0x0 +#define KDEBUG_DUNNO_OFF 0x4 +#define KDEBUG_DUNNO2_OFF 0x8 +#define KDEBUG_TEACH_OFF 0xc + +#endif /* !(_SPARC_KDEBUG_H) */ diff --git a/include/asm-sparc/kdebug_64.h b/include/asm-sparc/kdebug_64.h new file mode 100644 index 000000000000..f905b773235a --- /dev/null +++ b/include/asm-sparc/kdebug_64.h @@ -0,0 +1,19 @@ +#ifndef _SPARC64_KDEBUG_H +#define _SPARC64_KDEBUG_H + +struct pt_regs; + +extern void bad_trap(struct pt_regs *, long); + +/* Grossly misnamed. */ +enum die_val { + DIE_OOPS = 1, + DIE_DEBUG, /* ta 0x70 */ + DIE_DEBUG_2, /* ta 0x71 */ + DIE_DIE, + DIE_TRAP, + DIE_TRAP_TL1, + DIE_CALL, +}; + +#endif diff --git a/include/asm-sparc/mc146818rtc.h b/include/asm-sparc/mc146818rtc.h index fa7eac926582..9ab65c21e9e4 100644 --- a/include/asm-sparc/mc146818rtc.h +++ b/include/asm-sparc/mc146818rtc.h @@ -1,29 +1,8 @@ -/* - * Machine dependent access functions for RTC registers. - */ -#ifndef __ASM_SPARC_MC146818RTC_H -#define __ASM_SPARC_MC146818RTC_H - -#include - -#ifndef RTC_PORT -#define RTC_PORT(x) (0x70 + (x)) -#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */ +#ifndef ___ASM_SPARC_MC146818RTC_H +#define ___ASM_SPARC_MC146818RTC_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -/* - * The yet supported machines all access the RTC index register via - * an ISA port access but the way to access the date register differs ... - */ -#define CMOS_READ(addr) ({ \ -outb_p((addr),RTC_PORT(0)); \ -inb_p(RTC_PORT(1)); \ -}) -#define CMOS_WRITE(val, addr) ({ \ -outb_p((addr),RTC_PORT(0)); \ -outb_p((val),RTC_PORT(1)); \ -}) - -#define RTC_IRQ 8 - -#endif /* __ASM_SPARC_MC146818RTC_H */ diff --git a/include/asm-sparc/mc146818rtc_32.h b/include/asm-sparc/mc146818rtc_32.h new file mode 100644 index 000000000000..fa7eac926582 --- /dev/null +++ b/include/asm-sparc/mc146818rtc_32.h @@ -0,0 +1,29 @@ +/* + * Machine dependent access functions for RTC registers. + */ +#ifndef __ASM_SPARC_MC146818RTC_H +#define __ASM_SPARC_MC146818RTC_H + +#include + +#ifndef RTC_PORT +#define RTC_PORT(x) (0x70 + (x)) +#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */ +#endif + +/* + * The yet supported machines all access the RTC index register via + * an ISA port access but the way to access the date register differs ... + */ +#define CMOS_READ(addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +inb_p(RTC_PORT(1)); \ +}) +#define CMOS_WRITE(val, addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +outb_p((val),RTC_PORT(1)); \ +}) + +#define RTC_IRQ 8 + +#endif /* __ASM_SPARC_MC146818RTC_H */ diff --git a/include/asm-sparc/mc146818rtc_64.h b/include/asm-sparc/mc146818rtc_64.h new file mode 100644 index 000000000000..e9c0fcc25c6f --- /dev/null +++ b/include/asm-sparc/mc146818rtc_64.h @@ -0,0 +1,34 @@ +/* + * Machine dependent access functions for RTC registers. + */ +#ifndef __ASM_SPARC64_MC146818RTC_H +#define __ASM_SPARC64_MC146818RTC_H + +#include + +#ifndef RTC_PORT +#ifdef CONFIG_PCI +extern unsigned long ds1287_regs; +#else +#define ds1287_regs (0UL) +#endif +#define RTC_PORT(x) (ds1287_regs + (x)) +#define RTC_ALWAYS_BCD 0 +#endif + +/* + * The yet supported machines all access the RTC index register via + * an ISA port access but the way to access the date register differs ... + */ +#define CMOS_READ(addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +inb_p(RTC_PORT(1)); \ +}) +#define CMOS_WRITE(val, addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +outb_p((val),RTC_PORT(1)); \ +}) + +#define RTC_IRQ 8 + +#endif /* __ASM_SPARC64_MC146818RTC_H */ diff --git a/include/asm-sparc/mmu.h b/include/asm-sparc/mmu.h index ccd36d26615a..ee66bf6dcbd6 100644 --- a/include/asm-sparc/mmu.h +++ b/include/asm-sparc/mmu.h @@ -1,7 +1,8 @@ -#ifndef __MMU_H -#define __MMU_H - -/* Default "unsigned long" context */ -typedef unsigned long mm_context_t; - +#ifndef ___ASM_SPARC_MMU_H +#define ___ASM_SPARC_MMU_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif diff --git a/include/asm-sparc/mmu_32.h b/include/asm-sparc/mmu_32.h new file mode 100644 index 000000000000..ccd36d26615a --- /dev/null +++ b/include/asm-sparc/mmu_32.h @@ -0,0 +1,7 @@ +#ifndef __MMU_H +#define __MMU_H + +/* Default "unsigned long" context */ +typedef unsigned long mm_context_t; + +#endif diff --git a/include/asm-sparc/mmu_64.h b/include/asm-sparc/mmu_64.h new file mode 100644 index 000000000000..8abc58f0f9d7 --- /dev/null +++ b/include/asm-sparc/mmu_64.h @@ -0,0 +1,127 @@ +#ifndef __MMU_H +#define __MMU_H + +#include +#include +#include + +#define CTX_NR_BITS 13 + +#define TAG_CONTEXT_BITS ((_AC(1,UL) << CTX_NR_BITS) - _AC(1,UL)) + +/* UltraSPARC-III+ and later have a feature whereby you can + * select what page size the various Data-TLB instances in the + * chip. In order to gracefully support this, we put the version + * field in a spot outside of the areas of the context register + * where this parameter is specified. + */ +#define CTX_VERSION_SHIFT 22 +#define CTX_VERSION_MASK ((~0UL) << CTX_VERSION_SHIFT) + +#define CTX_PGSZ_8KB _AC(0x0,UL) +#define CTX_PGSZ_64KB _AC(0x1,UL) +#define CTX_PGSZ_512KB _AC(0x2,UL) +#define CTX_PGSZ_4MB _AC(0x3,UL) +#define CTX_PGSZ_BITS _AC(0x7,UL) +#define CTX_PGSZ0_NUC_SHIFT 61 +#define CTX_PGSZ1_NUC_SHIFT 58 +#define CTX_PGSZ0_SHIFT 16 +#define CTX_PGSZ1_SHIFT 19 +#define CTX_PGSZ_MASK ((CTX_PGSZ_BITS << CTX_PGSZ0_SHIFT) | \ + (CTX_PGSZ_BITS << CTX_PGSZ1_SHIFT)) + +#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB) +#define CTX_PGSZ_BASE CTX_PGSZ_8KB +#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) +#define CTX_PGSZ_BASE CTX_PGSZ_64KB +#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) +#define CTX_PGSZ_BASE CTX_PGSZ_512KB +#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) +#define CTX_PGSZ_BASE CTX_PGSZ_4MB +#else +#error No page size specified in kernel configuration +#endif + +#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) +#define CTX_PGSZ_HUGE CTX_PGSZ_4MB +#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) +#define CTX_PGSZ_HUGE CTX_PGSZ_512KB +#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) +#define CTX_PGSZ_HUGE CTX_PGSZ_64KB +#endif + +#define CTX_PGSZ_KERN CTX_PGSZ_4MB + +/* Thus, when running on UltraSPARC-III+ and later, we use the following + * PRIMARY_CONTEXT register values for the kernel context. + */ +#define CTX_CHEETAH_PLUS_NUC \ + ((CTX_PGSZ_KERN << CTX_PGSZ0_NUC_SHIFT) | \ + (CTX_PGSZ_BASE << CTX_PGSZ1_NUC_SHIFT)) + +#define CTX_CHEETAH_PLUS_CTX0 \ + ((CTX_PGSZ_KERN << CTX_PGSZ0_SHIFT) | \ + (CTX_PGSZ_BASE << CTX_PGSZ1_SHIFT)) + +/* If you want "the TLB context number" use CTX_NR_MASK. If you + * want "the bits I program into the context registers" use + * CTX_HW_MASK. + */ +#define CTX_NR_MASK TAG_CONTEXT_BITS +#define CTX_HW_MASK (CTX_NR_MASK | CTX_PGSZ_MASK) + +#define CTX_FIRST_VERSION ((_AC(1,UL) << CTX_VERSION_SHIFT) + _AC(1,UL)) +#define CTX_VALID(__ctx) \ + (!(((__ctx.sparc64_ctx_val) ^ tlb_context_cache) & CTX_VERSION_MASK)) +#define CTX_HWBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_HW_MASK) +#define CTX_NRBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_NR_MASK) + +#ifndef __ASSEMBLY__ + +#define TSB_ENTRY_ALIGNMENT 16 + +struct tsb { + unsigned long tag; + unsigned long pte; +} __attribute__((aligned(TSB_ENTRY_ALIGNMENT))); + +extern void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte); +extern void tsb_flush(unsigned long ent, unsigned long tag); +extern void tsb_init(struct tsb *tsb, unsigned long size); + +struct tsb_config { + struct tsb *tsb; + unsigned long tsb_rss_limit; + unsigned long tsb_nentries; + unsigned long tsb_reg_val; + unsigned long tsb_map_vaddr; + unsigned long tsb_map_pte; +}; + +#define MM_TSB_BASE 0 + +#ifdef CONFIG_HUGETLB_PAGE +#define MM_TSB_HUGE 1 +#define MM_NUM_TSBS 2 +#else +#define MM_NUM_TSBS 1 +#endif + +typedef struct { + spinlock_t lock; + unsigned long sparc64_ctx_val; + unsigned long huge_pte_count; + struct tsb_config tsb_block[MM_NUM_TSBS]; + struct hv_tsb_descr tsb_descr[MM_NUM_TSBS]; +} mm_context_t; + +#endif /* !__ASSEMBLY__ */ + +#define TSB_CONFIG_TSB 0x00 +#define TSB_CONFIG_RSS_LIMIT 0x08 +#define TSB_CONFIG_NENTRIES 0x10 +#define TSB_CONFIG_REG_VAL 0x18 +#define TSB_CONFIG_MAP_VADDR 0x20 +#define TSB_CONFIG_MAP_PTE 0x28 + +#endif /* __MMU_H */ diff --git a/include/asm-sparc/mmu_context.h b/include/asm-sparc/mmu_context.h index 671a997b9e69..e14efb9532ff 100644 --- a/include/asm-sparc/mmu_context.h +++ b/include/asm-sparc/mmu_context.h @@ -1,42 +1,8 @@ -#ifndef __SPARC_MMU_CONTEXT_H -#define __SPARC_MMU_CONTEXT_H - -#include - -#ifndef __ASSEMBLY__ - -#include - -static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) -{ -} - -/* - * Initialize a new mmu context. This is invoked when a new - * address space instance (unique or shared) is instantiated. - */ -#define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0) - -/* - * Destroy a dead context. This occurs when mmput drops the - * mm_users count to zero, the mmaps have been released, and - * all the page tables have been flushed. Our job is to destroy - * any remaining processor-specific state. - */ -BTFIXUPDEF_CALL(void, destroy_context, struct mm_struct *) - -#define destroy_context(mm) BTFIXUP_CALL(destroy_context)(mm) - -/* Switch the current MM context. */ -BTFIXUPDEF_CALL(void, switch_mm, struct mm_struct *, struct mm_struct *, struct task_struct *) - -#define switch_mm(old_mm, mm, tsk) BTFIXUP_CALL(switch_mm)(old_mm, mm, tsk) - -#define deactivate_mm(tsk,mm) do { } while (0) - -/* Activate a new MM instance for the current task. */ -#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL) - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(__SPARC_MMU_CONTEXT_H) */ +#ifndef ___ASM_SPARC_MMU_CONTEXT_H +#define ___ASM_SPARC_MMU_CONTEXT_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/mmu_context_32.h b/include/asm-sparc/mmu_context_32.h new file mode 100644 index 000000000000..671a997b9e69 --- /dev/null +++ b/include/asm-sparc/mmu_context_32.h @@ -0,0 +1,42 @@ +#ifndef __SPARC_MMU_CONTEXT_H +#define __SPARC_MMU_CONTEXT_H + +#include + +#ifndef __ASSEMBLY__ + +#include + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +/* + * Initialize a new mmu context. This is invoked when a new + * address space instance (unique or shared) is instantiated. + */ +#define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0) + +/* + * Destroy a dead context. This occurs when mmput drops the + * mm_users count to zero, the mmaps have been released, and + * all the page tables have been flushed. Our job is to destroy + * any remaining processor-specific state. + */ +BTFIXUPDEF_CALL(void, destroy_context, struct mm_struct *) + +#define destroy_context(mm) BTFIXUP_CALL(destroy_context)(mm) + +/* Switch the current MM context. */ +BTFIXUPDEF_CALL(void, switch_mm, struct mm_struct *, struct mm_struct *, struct task_struct *) + +#define switch_mm(old_mm, mm, tsk) BTFIXUP_CALL(switch_mm)(old_mm, mm, tsk) + +#define deactivate_mm(tsk,mm) do { } while (0) + +/* Activate a new MM instance for the current task. */ +#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL) + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC_MMU_CONTEXT_H) */ diff --git a/include/asm-sparc/mmu_context_64.h b/include/asm-sparc/mmu_context_64.h new file mode 100644 index 000000000000..5693ab482606 --- /dev/null +++ b/include/asm-sparc/mmu_context_64.h @@ -0,0 +1,155 @@ +#ifndef __SPARC64_MMU_CONTEXT_H +#define __SPARC64_MMU_CONTEXT_H + +/* Derived heavily from Linus's Alpha/AXP ASN code... */ + +#ifndef __ASSEMBLY__ + +#include +#include +#include +#include + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +extern spinlock_t ctx_alloc_lock; +extern unsigned long tlb_context_cache; +extern unsigned long mmu_context_bmap[]; + +extern void get_new_mmu_context(struct mm_struct *mm); +#ifdef CONFIG_SMP +extern void smp_new_mmu_context_version(void); +#else +#define smp_new_mmu_context_version() do { } while (0) +#endif + +extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); +extern void destroy_context(struct mm_struct *mm); + +extern void __tsb_context_switch(unsigned long pgd_pa, + struct tsb_config *tsb_base, + struct tsb_config *tsb_huge, + unsigned long tsb_descr_pa); + +static inline void tsb_context_switch(struct mm_struct *mm) +{ + __tsb_context_switch(__pa(mm->pgd), + &mm->context.tsb_block[0], +#ifdef CONFIG_HUGETLB_PAGE + (mm->context.tsb_block[1].tsb ? + &mm->context.tsb_block[1] : + NULL) +#else + NULL +#endif + , __pa(&mm->context.tsb_descr[0])); +} + +extern void tsb_grow(struct mm_struct *mm, unsigned long tsb_index, unsigned long mm_rss); +#ifdef CONFIG_SMP +extern void smp_tsb_sync(struct mm_struct *mm); +#else +#define smp_tsb_sync(__mm) do { } while (0) +#endif + +/* Set MMU context in the actual hardware. */ +#define load_secondary_context(__mm) \ + __asm__ __volatile__( \ + "\n661: stxa %0, [%1] %2\n" \ + " .section .sun4v_1insn_patch, \"ax\"\n" \ + " .word 661b\n" \ + " stxa %0, [%1] %3\n" \ + " .previous\n" \ + " flush %%g6\n" \ + : /* No outputs */ \ + : "r" (CTX_HWBITS((__mm)->context)), \ + "r" (SECONDARY_CONTEXT), "i" (ASI_DMMU), "i" (ASI_MMU)) + +extern void __flush_tlb_mm(unsigned long, unsigned long); + +/* Switch the current MM context. Interrupts are disabled. */ +static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, struct task_struct *tsk) +{ + unsigned long ctx_valid, flags; + int cpu; + + if (unlikely(mm == &init_mm)) + return; + + spin_lock_irqsave(&mm->context.lock, flags); + ctx_valid = CTX_VALID(mm->context); + if (!ctx_valid) + get_new_mmu_context(mm); + + /* We have to be extremely careful here or else we will miss + * a TSB grow if we switch back and forth between a kernel + * thread and an address space which has it's TSB size increased + * on another processor. + * + * It is possible to play some games in order to optimize the + * switch, but the safest thing to do is to unconditionally + * perform the secondary context load and the TSB context switch. + * + * For reference the bad case is, for address space "A": + * + * CPU 0 CPU 1 + * run address space A + * set cpu0's bits in cpu_vm_mask + * switch to kernel thread, borrow + * address space A via entry_lazy_tlb + * run address space A + * set cpu1's bit in cpu_vm_mask + * flush_tlb_pending() + * reset cpu_vm_mask to just cpu1 + * TSB grow + * run address space A + * context was valid, so skip + * TSB context switch + * + * At that point cpu0 continues to use a stale TSB, the one from + * before the TSB grow performed on cpu1. cpu1 did not cross-call + * cpu0 to update it's TSB because at that point the cpu_vm_mask + * only had cpu1 set in it. + */ + load_secondary_context(mm); + tsb_context_switch(mm); + + /* Any time a processor runs a context on an address space + * for the first time, we must flush that context out of the + * local TLB. + */ + cpu = smp_processor_id(); + if (!ctx_valid || !cpu_isset(cpu, mm->cpu_vm_mask)) { + cpu_set(cpu, mm->cpu_vm_mask); + __flush_tlb_mm(CTX_HWBITS(mm->context), + SECONDARY_CONTEXT); + } + spin_unlock_irqrestore(&mm->context.lock, flags); +} + +#define deactivate_mm(tsk,mm) do { } while (0) + +/* Activate a new MM instance for the current task. */ +static inline void activate_mm(struct mm_struct *active_mm, struct mm_struct *mm) +{ + unsigned long flags; + int cpu; + + spin_lock_irqsave(&mm->context.lock, flags); + if (!CTX_VALID(mm->context)) + get_new_mmu_context(mm); + cpu = smp_processor_id(); + if (!cpu_isset(cpu, mm->cpu_vm_mask)) + cpu_set(cpu, mm->cpu_vm_mask); + + load_secondary_context(mm); + __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT); + tsb_context_switch(mm); + spin_unlock_irqrestore(&mm->context.lock, flags); +} + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC64_MMU_CONTEXT_H) */ diff --git a/include/asm-sparc/module.h b/include/asm-sparc/module.h index cbd9e67b0c0b..516138fe681a 100644 --- a/include/asm-sparc/module.h +++ b/include/asm-sparc/module.h @@ -1,7 +1,8 @@ -#ifndef _ASM_SPARC_MODULE_H -#define _ASM_SPARC_MODULE_H -struct mod_arch_specific { }; -#define Elf_Shdr Elf32_Shdr -#define Elf_Sym Elf32_Sym -#define Elf_Ehdr Elf32_Ehdr -#endif /* _ASM_SPARC_MODULE_H */ +#ifndef ___ASM_SPARC_MODULE_H +#define ___ASM_SPARC_MODULE_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/module_32.h b/include/asm-sparc/module_32.h new file mode 100644 index 000000000000..cbd9e67b0c0b --- /dev/null +++ b/include/asm-sparc/module_32.h @@ -0,0 +1,7 @@ +#ifndef _ASM_SPARC_MODULE_H +#define _ASM_SPARC_MODULE_H +struct mod_arch_specific { }; +#define Elf_Shdr Elf32_Shdr +#define Elf_Sym Elf32_Sym +#define Elf_Ehdr Elf32_Ehdr +#endif /* _ASM_SPARC_MODULE_H */ diff --git a/include/asm-sparc/module_64.h b/include/asm-sparc/module_64.h new file mode 100644 index 000000000000..3d77ba465783 --- /dev/null +++ b/include/asm-sparc/module_64.h @@ -0,0 +1,7 @@ +#ifndef _ASM_SPARC64_MODULE_H +#define _ASM_SPARC64_MODULE_H +struct mod_arch_specific { }; +#define Elf_Shdr Elf64_Shdr +#define Elf_Sym Elf64_Sym +#define Elf_Ehdr Elf64_Ehdr +#endif /* _ASM_SPARC64_MODULE_H */ diff --git a/include/asm-sparc/mostek.h b/include/asm-sparc/mostek.h index c35c916162fc..5b9f7fec7ee7 100644 --- a/include/asm-sparc/mostek.h +++ b/include/asm-sparc/mostek.h @@ -1,171 +1,8 @@ -/* - * mostek.h: Describes the various Mostek time of day clock registers. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) - * Added intersil code 05/25/98 Chris Davis (cdavis@cois.on.ca) - */ - -#ifndef _SPARC_MOSTEK_H -#define _SPARC_MOSTEK_H - -#include -#include - -/* M48T02 Register Map (adapted from Sun NVRAM/Hostid FAQ) - * - * Data - * Address Function - * Bit 7 Bit 6 Bit 5 Bit 4Bit 3 Bit 2 Bit 1 Bit 0 - * 7ff - - - - - - - - Year 00-99 - * 7fe 0 0 0 - - - - - Month 01-12 - * 7fd 0 0 - - - - - - Date 01-31 - * 7fc 0 FT 0 0 0 - - - Day 01-07 - * 7fb KS 0 - - - - - - Hours 00-23 - * 7fa 0 - - - - - - - Minutes 00-59 - * 7f9 ST - - - - - - - Seconds 00-59 - * 7f8 W R S - - - - - Control - * - * * ST is STOP BIT - * * W is WRITE BIT - * * R is READ BIT - * * S is SIGN BIT - * * FT is FREQ TEST BIT - * * KS is KICK START BIT - */ - -/* The Mostek 48t02 real time clock and NVRAM chip. The registers - * other than the control register are in binary coded decimal. Some - * control bits also live outside the control register. - */ -#define mostek_read(_addr) readb(_addr) -#define mostek_write(_addr,_val) writeb(_val, _addr) -#define MOSTEK_EEPROM 0x0000UL -#define MOSTEK_IDPROM 0x07d8UL -#define MOSTEK_CREG 0x07f8UL -#define MOSTEK_SEC 0x07f9UL -#define MOSTEK_MIN 0x07faUL -#define MOSTEK_HOUR 0x07fbUL -#define MOSTEK_DOW 0x07fcUL -#define MOSTEK_DOM 0x07fdUL -#define MOSTEK_MONTH 0x07feUL -#define MOSTEK_YEAR 0x07ffUL - -struct mostek48t02 { - volatile char eeprom[2008]; /* This is the eeprom, don't touch! */ - struct idprom idprom; /* The idprom lives here. */ - volatile unsigned char creg; /* Control register */ - volatile unsigned char sec; /* Seconds (0-59) */ - volatile unsigned char min; /* Minutes (0-59) */ - volatile unsigned char hour; /* Hour (0-23) */ - volatile unsigned char dow; /* Day of the week (1-7) */ - volatile unsigned char dom; /* Day of the month (1-31) */ - volatile unsigned char month; /* Month of year (1-12) */ - volatile unsigned char year; /* Year (0-99) */ -}; - -extern spinlock_t mostek_lock; -extern void __iomem *mstk48t02_regs; - -/* Control register values. */ -#define MSTK_CREG_WRITE 0x80 /* Must set this before placing values. */ -#define MSTK_CREG_READ 0x40 /* Stop updates to allow a clean read. */ -#define MSTK_CREG_SIGN 0x20 /* Slow/speed clock in calibration mode. */ - -/* Control bits that live in the other registers. */ -#define MSTK_STOP 0x80 /* Stop the clock oscillator. (sec) */ -#define MSTK_KICK_START 0x80 /* Kick start the clock chip. (hour) */ -#define MSTK_FREQ_TEST 0x40 /* Frequency test mode. (day) */ - -#define MSTK_YEAR_ZERO 1968 /* If year reg has zero, it is 1968. */ -#define MSTK_CVT_YEAR(yr) ((yr) + MSTK_YEAR_ZERO) - -/* Masks that define how much space each value takes up. */ -#define MSTK_SEC_MASK 0x7f -#define MSTK_MIN_MASK 0x7f -#define MSTK_HOUR_MASK 0x3f -#define MSTK_DOW_MASK 0x07 -#define MSTK_DOM_MASK 0x3f -#define MSTK_MONTH_MASK 0x1f -#define MSTK_YEAR_MASK 0xffU - -/* Binary coded decimal conversion macros. */ -#define MSTK_REGVAL_TO_DECIMAL(x) (((x) & 0x0F) + 0x0A * ((x) >> 0x04)) -#define MSTK_DECIMAL_TO_REGVAL(x) ((((x) / 0x0A) << 0x04) + ((x) % 0x0A)) - -/* Generic register set and get macros for internal use. */ -#define MSTK_GET(regs,var,mask) (MSTK_REGVAL_TO_DECIMAL(((struct mostek48t02 *)regs)->var & MSTK_ ## mask ## _MASK)) -#define MSTK_SET(regs,var,value,mask) do { ((struct mostek48t02 *)regs)->var &= ~(MSTK_ ## mask ## _MASK); ((struct mostek48t02 *)regs)->var |= MSTK_DECIMAL_TO_REGVAL(value) & (MSTK_ ## mask ## _MASK); } while (0) - -/* Macros to make register access easier on our fingers. These give you - * the decimal value of the register requested if applicable. You pass - * the a pointer to a 'struct mostek48t02'. - */ -#define MSTK_REG_CREG(regs) (((struct mostek48t02 *)regs)->creg) -#define MSTK_REG_SEC(regs) MSTK_GET(regs,sec,SEC) -#define MSTK_REG_MIN(regs) MSTK_GET(regs,min,MIN) -#define MSTK_REG_HOUR(regs) MSTK_GET(regs,hour,HOUR) -#define MSTK_REG_DOW(regs) MSTK_GET(regs,dow,DOW) -#define MSTK_REG_DOM(regs) MSTK_GET(regs,dom,DOM) -#define MSTK_REG_MONTH(regs) MSTK_GET(regs,month,MONTH) -#define MSTK_REG_YEAR(regs) MSTK_GET(regs,year,YEAR) - -#define MSTK_SET_REG_SEC(regs,value) MSTK_SET(regs,sec,value,SEC) -#define MSTK_SET_REG_MIN(regs,value) MSTK_SET(regs,min,value,MIN) -#define MSTK_SET_REG_HOUR(regs,value) MSTK_SET(regs,hour,value,HOUR) -#define MSTK_SET_REG_DOW(regs,value) MSTK_SET(regs,dow,value,DOW) -#define MSTK_SET_REG_DOM(regs,value) MSTK_SET(regs,dom,value,DOM) -#define MSTK_SET_REG_MONTH(regs,value) MSTK_SET(regs,month,value,MONTH) -#define MSTK_SET_REG_YEAR(regs,value) MSTK_SET(regs,year,value,YEAR) - - -/* The Mostek 48t08 clock chip. Found on Sun4m's I think. It has the - * same (basically) layout of the 48t02 chip except for the extra - * NVRAM on board (8 KB against the 48t02's 2 KB). - */ -struct mostek48t08 { - char offset[6*1024]; /* Magic things may be here, who knows? */ - struct mostek48t02 regs; /* Here is what we are interested in. */ -}; - -#ifdef CONFIG_SUN4 -enum sparc_clock_type { MSTK48T02, MSTK48T08, \ -INTERSIL, MSTK_INVALID }; +#ifndef ___ASM_SPARC_MOSTEK_H +#define ___ASM_SPARC_MOSTEK_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -enum sparc_clock_type { MSTK48T02, MSTK48T08, \ -MSTK_INVALID }; +#include #endif - -#ifdef CONFIG_SUN4 -/* intersil on a sun 4/260 code data from harris doc */ -struct intersil_dt { - volatile unsigned char int_csec; - volatile unsigned char int_hour; - volatile unsigned char int_min; - volatile unsigned char int_sec; - volatile unsigned char int_month; - volatile unsigned char int_day; - volatile unsigned char int_year; - volatile unsigned char int_dow; -}; - -struct intersil { - struct intersil_dt clk; - struct intersil_dt cmp; - volatile unsigned char int_intr_reg; - volatile unsigned char int_cmd_reg; -}; - -#define INTERSIL_STOP 0x0 -#define INTERSIL_START 0x8 -#define INTERSIL_INTR_DISABLE 0x0 -#define INTERSIL_INTR_ENABLE 0x10 -#define INTERSIL_32K 0x0 -#define INTERSIL_NORMAL 0x0 -#define INTERSIL_24H 0x4 -#define INTERSIL_INT_100HZ 0x2 - -/* end of intersil info */ #endif - -#endif /* !(_SPARC_MOSTEK_H) */ diff --git a/include/asm-sparc/mostek_32.h b/include/asm-sparc/mostek_32.h new file mode 100644 index 000000000000..a99590c4c507 --- /dev/null +++ b/include/asm-sparc/mostek_32.h @@ -0,0 +1,171 @@ +/* + * mostek.h: Describes the various Mostek time of day clock registers. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) + * Added intersil code 05/25/98 Chris Davis (cdavis@cois.on.ca) + */ + +#ifndef _SPARC_MOSTEK_H +#define _SPARC_MOSTEK_H + +#include +#include + +/* M48T02 Register Map (adapted from Sun NVRAM/Hostid FAQ) + * + * Data + * Address Function + * Bit 7 Bit 6 Bit 5 Bit 4Bit 3 Bit 2 Bit 1 Bit 0 + * 7ff - - - - - - - - Year 00-99 + * 7fe 0 0 0 - - - - - Month 01-12 + * 7fd 0 0 - - - - - - Date 01-31 + * 7fc 0 FT 0 0 0 - - - Day 01-07 + * 7fb KS 0 - - - - - - Hours 00-23 + * 7fa 0 - - - - - - - Minutes 00-59 + * 7f9 ST - - - - - - - Seconds 00-59 + * 7f8 W R S - - - - - Control + * + * * ST is STOP BIT + * * W is WRITE BIT + * * R is READ BIT + * * S is SIGN BIT + * * FT is FREQ TEST BIT + * * KS is KICK START BIT + */ + +/* The Mostek 48t02 real time clock and NVRAM chip. The registers + * other than the control register are in binary coded decimal. Some + * control bits also live outside the control register. + */ +#define mostek_read(_addr) readb(_addr) +#define mostek_write(_addr,_val) writeb(_val, _addr) +#define MOSTEK_EEPROM 0x0000UL +#define MOSTEK_IDPROM 0x07d8UL +#define MOSTEK_CREG 0x07f8UL +#define MOSTEK_SEC 0x07f9UL +#define MOSTEK_MIN 0x07faUL +#define MOSTEK_HOUR 0x07fbUL +#define MOSTEK_DOW 0x07fcUL +#define MOSTEK_DOM 0x07fdUL +#define MOSTEK_MONTH 0x07feUL +#define MOSTEK_YEAR 0x07ffUL + +struct mostek48t02 { + volatile char eeprom[2008]; /* This is the eeprom, don't touch! */ + struct idprom idprom; /* The idprom lives here. */ + volatile unsigned char creg; /* Control register */ + volatile unsigned char sec; /* Seconds (0-59) */ + volatile unsigned char min; /* Minutes (0-59) */ + volatile unsigned char hour; /* Hour (0-23) */ + volatile unsigned char dow; /* Day of the week (1-7) */ + volatile unsigned char dom; /* Day of the month (1-31) */ + volatile unsigned char month; /* Month of year (1-12) */ + volatile unsigned char year; /* Year (0-99) */ +}; + +extern spinlock_t mostek_lock; +extern void __iomem *mstk48t02_regs; + +/* Control register values. */ +#define MSTK_CREG_WRITE 0x80 /* Must set this before placing values. */ +#define MSTK_CREG_READ 0x40 /* Stop updates to allow a clean read. */ +#define MSTK_CREG_SIGN 0x20 /* Slow/speed clock in calibration mode. */ + +/* Control bits that live in the other registers. */ +#define MSTK_STOP 0x80 /* Stop the clock oscillator. (sec) */ +#define MSTK_KICK_START 0x80 /* Kick start the clock chip. (hour) */ +#define MSTK_FREQ_TEST 0x40 /* Frequency test mode. (day) */ + +#define MSTK_YEAR_ZERO 1968 /* If year reg has zero, it is 1968. */ +#define MSTK_CVT_YEAR(yr) ((yr) + MSTK_YEAR_ZERO) + +/* Masks that define how much space each value takes up. */ +#define MSTK_SEC_MASK 0x7f +#define MSTK_MIN_MASK 0x7f +#define MSTK_HOUR_MASK 0x3f +#define MSTK_DOW_MASK 0x07 +#define MSTK_DOM_MASK 0x3f +#define MSTK_MONTH_MASK 0x1f +#define MSTK_YEAR_MASK 0xffU + +/* Binary coded decimal conversion macros. */ +#define MSTK_REGVAL_TO_DECIMAL(x) (((x) & 0x0F) + 0x0A * ((x) >> 0x04)) +#define MSTK_DECIMAL_TO_REGVAL(x) ((((x) / 0x0A) << 0x04) + ((x) % 0x0A)) + +/* Generic register set and get macros for internal use. */ +#define MSTK_GET(regs,var,mask) (MSTK_REGVAL_TO_DECIMAL(((struct mostek48t02 *)regs)->var & MSTK_ ## mask ## _MASK)) +#define MSTK_SET(regs,var,value,mask) do { ((struct mostek48t02 *)regs)->var &= ~(MSTK_ ## mask ## _MASK); ((struct mostek48t02 *)regs)->var |= MSTK_DECIMAL_TO_REGVAL(value) & (MSTK_ ## mask ## _MASK); } while (0) + +/* Macros to make register access easier on our fingers. These give you + * the decimal value of the register requested if applicable. You pass + * the a pointer to a 'struct mostek48t02'. + */ +#define MSTK_REG_CREG(regs) (((struct mostek48t02 *)regs)->creg) +#define MSTK_REG_SEC(regs) MSTK_GET(regs,sec,SEC) +#define MSTK_REG_MIN(regs) MSTK_GET(regs,min,MIN) +#define MSTK_REG_HOUR(regs) MSTK_GET(regs,hour,HOUR) +#define MSTK_REG_DOW(regs) MSTK_GET(regs,dow,DOW) +#define MSTK_REG_DOM(regs) MSTK_GET(regs,dom,DOM) +#define MSTK_REG_MONTH(regs) MSTK_GET(regs,month,MONTH) +#define MSTK_REG_YEAR(regs) MSTK_GET(regs,year,YEAR) + +#define MSTK_SET_REG_SEC(regs,value) MSTK_SET(regs,sec,value,SEC) +#define MSTK_SET_REG_MIN(regs,value) MSTK_SET(regs,min,value,MIN) +#define MSTK_SET_REG_HOUR(regs,value) MSTK_SET(regs,hour,value,HOUR) +#define MSTK_SET_REG_DOW(regs,value) MSTK_SET(regs,dow,value,DOW) +#define MSTK_SET_REG_DOM(regs,value) MSTK_SET(regs,dom,value,DOM) +#define MSTK_SET_REG_MONTH(regs,value) MSTK_SET(regs,month,value,MONTH) +#define MSTK_SET_REG_YEAR(regs,value) MSTK_SET(regs,year,value,YEAR) + + +/* The Mostek 48t08 clock chip. Found on Sun4m's I think. It has the + * same (basically) layout of the 48t02 chip except for the extra + * NVRAM on board (8 KB against the 48t02's 2 KB). + */ +struct mostek48t08 { + char offset[6*1024]; /* Magic things may be here, who knows? */ + struct mostek48t02 regs; /* Here is what we are interested in. */ +}; + +#ifdef CONFIG_SUN4 +enum sparc_clock_type { MSTK48T02, MSTK48T08, \ +INTERSIL, MSTK_INVALID }; +#else +enum sparc_clock_type { MSTK48T02, MSTK48T08, \ +MSTK_INVALID }; +#endif + +#ifdef CONFIG_SUN4 +/* intersil on a sun 4/260 code data from harris doc */ +struct intersil_dt { + volatile unsigned char int_csec; + volatile unsigned char int_hour; + volatile unsigned char int_min; + volatile unsigned char int_sec; + volatile unsigned char int_month; + volatile unsigned char int_day; + volatile unsigned char int_year; + volatile unsigned char int_dow; +}; + +struct intersil { + struct intersil_dt clk; + struct intersil_dt cmp; + volatile unsigned char int_intr_reg; + volatile unsigned char int_cmd_reg; +}; + +#define INTERSIL_STOP 0x0 +#define INTERSIL_START 0x8 +#define INTERSIL_INTR_DISABLE 0x0 +#define INTERSIL_INTR_ENABLE 0x10 +#define INTERSIL_32K 0x0 +#define INTERSIL_NORMAL 0x0 +#define INTERSIL_24H 0x4 +#define INTERSIL_INT_100HZ 0x2 + +/* end of intersil info */ +#endif + +#endif /* !(_SPARC_MOSTEK_H) */ diff --git a/include/asm-sparc/mostek_64.h b/include/asm-sparc/mostek_64.h new file mode 100644 index 000000000000..c5652de2ace2 --- /dev/null +++ b/include/asm-sparc/mostek_64.h @@ -0,0 +1,143 @@ +/* mostek.h: Describes the various Mostek time of day clock registers. + * + * Copyright (C) 1995 David S. Miller (davem@davemloft.net) + * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) + */ + +#ifndef _SPARC64_MOSTEK_H +#define _SPARC64_MOSTEK_H + +#include + +/* M48T02 Register Map (adapted from Sun NVRAM/Hostid FAQ) + * + * Data + * Address Function + * Bit 7 Bit 6 Bit 5 Bit 4Bit 3 Bit 2 Bit 1 Bit 0 + * 7ff - - - - - - - - Year 00-99 + * 7fe 0 0 0 - - - - - Month 01-12 + * 7fd 0 0 - - - - - - Date 01-31 + * 7fc 0 FT 0 0 0 - - - Day 01-07 + * 7fb KS 0 - - - - - - Hours 00-23 + * 7fa 0 - - - - - - - Minutes 00-59 + * 7f9 ST - - - - - - - Seconds 00-59 + * 7f8 W R S - - - - - Control + * + * * ST is STOP BIT + * * W is WRITE BIT + * * R is READ BIT + * * S is SIGN BIT + * * FT is FREQ TEST BIT + * * KS is KICK START BIT + */ + +/* The Mostek 48t02 real time clock and NVRAM chip. The registers + * other than the control register are in binary coded decimal. Some + * control bits also live outside the control register. + * + * We now deal with physical addresses for I/O to the chip. -DaveM + */ +static inline u8 mostek_read(void __iomem *addr) +{ + u8 ret; + + __asm__ __volatile__("lduba [%1] %2, %0" + : "=r" (ret) + : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + return ret; +} + +static inline void mostek_write(void __iomem *addr, u8 val) +{ + __asm__ __volatile__("stba %0, [%1] %2" + : /* no outputs */ + : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); +} + +#define MOSTEK_EEPROM 0x0000UL +#define MOSTEK_IDPROM 0x07d8UL +#define MOSTEK_CREG 0x07f8UL +#define MOSTEK_SEC 0x07f9UL +#define MOSTEK_MIN 0x07faUL +#define MOSTEK_HOUR 0x07fbUL +#define MOSTEK_DOW 0x07fcUL +#define MOSTEK_DOM 0x07fdUL +#define MOSTEK_MONTH 0x07feUL +#define MOSTEK_YEAR 0x07ffUL + +extern spinlock_t mostek_lock; +extern void __iomem *mstk48t02_regs; + +/* Control register values. */ +#define MSTK_CREG_WRITE 0x80 /* Must set this before placing values. */ +#define MSTK_CREG_READ 0x40 /* Stop updates to allow a clean read. */ +#define MSTK_CREG_SIGN 0x20 /* Slow/speed clock in calibration mode. */ + +/* Control bits that live in the other registers. */ +#define MSTK_STOP 0x80 /* Stop the clock oscillator. (sec) */ +#define MSTK_KICK_START 0x80 /* Kick start the clock chip. (hour) */ +#define MSTK_FREQ_TEST 0x40 /* Frequency test mode. (day) */ + +#define MSTK_YEAR_ZERO 1968 /* If year reg has zero, it is 1968. */ +#define MSTK_CVT_YEAR(yr) ((yr) + MSTK_YEAR_ZERO) + +/* Masks that define how much space each value takes up. */ +#define MSTK_SEC_MASK 0x7f +#define MSTK_MIN_MASK 0x7f +#define MSTK_HOUR_MASK 0x3f +#define MSTK_DOW_MASK 0x07 +#define MSTK_DOM_MASK 0x3f +#define MSTK_MONTH_MASK 0x1f +#define MSTK_YEAR_MASK 0xffU + +/* Binary coded decimal conversion macros. */ +#define MSTK_REGVAL_TO_DECIMAL(x) (((x) & 0x0F) + 0x0A * ((x) >> 0x04)) +#define MSTK_DECIMAL_TO_REGVAL(x) ((((x) / 0x0A) << 0x04) + ((x) % 0x0A)) + +/* Generic register set and get macros for internal use. */ +#define MSTK_GET(regs,name) \ + (MSTK_REGVAL_TO_DECIMAL(mostek_read(regs + MOSTEK_ ## name) & MSTK_ ## name ## _MASK)) +#define MSTK_SET(regs,name,value) \ +do { u8 __val = mostek_read(regs + MOSTEK_ ## name); \ + __val &= ~(MSTK_ ## name ## _MASK); \ + __val |= (MSTK_DECIMAL_TO_REGVAL(value) & \ + (MSTK_ ## name ## _MASK)); \ + mostek_write(regs + MOSTEK_ ## name, __val); \ +} while(0) + +/* Macros to make register access easier on our fingers. These give you + * the decimal value of the register requested if applicable. You pass + * the a pointer to a 'struct mostek48t02'. + */ +#define MSTK_REG_CREG(regs) (mostek_read((regs) + MOSTEK_CREG)) +#define MSTK_REG_SEC(regs) MSTK_GET(regs,SEC) +#define MSTK_REG_MIN(regs) MSTK_GET(regs,MIN) +#define MSTK_REG_HOUR(regs) MSTK_GET(regs,HOUR) +#define MSTK_REG_DOW(regs) MSTK_GET(regs,DOW) +#define MSTK_REG_DOM(regs) MSTK_GET(regs,DOM) +#define MSTK_REG_MONTH(regs) MSTK_GET(regs,MONTH) +#define MSTK_REG_YEAR(regs) MSTK_GET(regs,YEAR) + +#define MSTK_SET_REG_SEC(regs,value) MSTK_SET(regs,SEC,value) +#define MSTK_SET_REG_MIN(regs,value) MSTK_SET(regs,MIN,value) +#define MSTK_SET_REG_HOUR(regs,value) MSTK_SET(regs,HOUR,value) +#define MSTK_SET_REG_DOW(regs,value) MSTK_SET(regs,DOW,value) +#define MSTK_SET_REG_DOM(regs,value) MSTK_SET(regs,DOM,value) +#define MSTK_SET_REG_MONTH(regs,value) MSTK_SET(regs,MONTH,value) +#define MSTK_SET_REG_YEAR(regs,value) MSTK_SET(regs,YEAR,value) + + +/* The Mostek 48t08 clock chip. Found on Sun4m's I think. It has the + * same (basically) layout of the 48t02 chip except for the extra + * NVRAM on board (8 KB against the 48t02's 2 KB). + */ +#define MOSTEK_48T08_OFFSET 0x0000UL /* Lower NVRAM portions */ +#define MOSTEK_48T08_48T02 0x1800UL /* Offset to 48T02 chip */ + +/* SUN5 systems usually have 48t59 model clock chipsets. But we keep the older + * clock chip definitions around just in case. + */ +#define MOSTEK_48T59_OFFSET 0x0000UL /* Lower NVRAM portions */ +#define MOSTEK_48T59_48T02 0x1800UL /* Offset to 48T02 chip */ + +#endif /* !(_SPARC64_MOSTEK_H) */ diff --git a/include/asm-sparc/namei.h b/include/asm-sparc/namei.h index 0646102fb020..eff944b8e321 100644 --- a/include/asm-sparc/namei.h +++ b/include/asm-sparc/namei.h @@ -1,13 +1,8 @@ -/* - * linux/include/asm-sparc/namei.h - * - * Routines to handle famous /usr/gnemul/s*. - * Included from linux/fs/namei.c - */ - -#ifndef __SPARC_NAMEI_H -#define __SPARC_NAMEI_H - -#define __emul_prefix() NULL - -#endif /* __SPARC_NAMEI_H */ +#ifndef ___ASM_SPARC_NAMEI_H +#define ___ASM_SPARC_NAMEI_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/namei_32.h b/include/asm-sparc/namei_32.h new file mode 100644 index 000000000000..0646102fb020 --- /dev/null +++ b/include/asm-sparc/namei_32.h @@ -0,0 +1,13 @@ +/* + * linux/include/asm-sparc/namei.h + * + * Routines to handle famous /usr/gnemul/s*. + * Included from linux/fs/namei.c + */ + +#ifndef __SPARC_NAMEI_H +#define __SPARC_NAMEI_H + +#define __emul_prefix() NULL + +#endif /* __SPARC_NAMEI_H */ diff --git a/include/asm-sparc/namei_64.h b/include/asm-sparc/namei_64.h new file mode 100644 index 000000000000..cbc1b4c06891 --- /dev/null +++ b/include/asm-sparc/namei_64.h @@ -0,0 +1,13 @@ +/* + * linux/include/asm-sparc64/namei.h + * + * Routines to handle famous /usr/gnemul/s*. + * Included from linux/fs/namei.c + */ + +#ifndef __SPARC64_NAMEI_H +#define __SPARC64_NAMEI_H + +#define __emul_prefix() NULL + +#endif /* __SPARC64_NAMEI_H */ diff --git a/include/asm-sparc/of_platform.h b/include/asm-sparc/of_platform.h index 38334351c36b..851eb84d737e 100644 --- a/include/asm-sparc/of_platform.h +++ b/include/asm-sparc/of_platform.h @@ -1,24 +1,8 @@ -#ifndef _ASM_SPARC_OF_PLATFORM_H -#define _ASM_SPARC_OF_PLATFORM_H -/* - * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. - * - * Modified for Sparc by merging parts of asm-sparc/of_device.h - * by Stephen Rothwell - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -/* This is just here during the transition */ -#include - -extern struct bus_type ebus_bus_type; -extern struct bus_type sbus_bus_type; - -#define of_bus_type of_platform_bus_type /* for compatibility */ - -#endif /* _ASM_SPARC_OF_PLATFORM_H */ +#ifndef ___ASM_SPARC_OF_PLATFORM_H +#define ___ASM_SPARC_OF_PLATFORM_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/of_platform_32.h b/include/asm-sparc/of_platform_32.h new file mode 100644 index 000000000000..38334351c36b --- /dev/null +++ b/include/asm-sparc/of_platform_32.h @@ -0,0 +1,24 @@ +#ifndef _ASM_SPARC_OF_PLATFORM_H +#define _ASM_SPARC_OF_PLATFORM_H +/* + * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. + * + * Modified for Sparc by merging parts of asm-sparc/of_device.h + * by Stephen Rothwell + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +/* This is just here during the transition */ +#include + +extern struct bus_type ebus_bus_type; +extern struct bus_type sbus_bus_type; + +#define of_bus_type of_platform_bus_type /* for compatibility */ + +#endif /* _ASM_SPARC_OF_PLATFORM_H */ diff --git a/include/asm-sparc/of_platform_64.h b/include/asm-sparc/of_platform_64.h new file mode 100644 index 000000000000..78aa032b674c --- /dev/null +++ b/include/asm-sparc/of_platform_64.h @@ -0,0 +1,25 @@ +#ifndef _ASM_SPARC64_OF_PLATFORM_H +#define _ASM_SPARC64_OF_PLATFORM_H +/* + * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. + * + * Modified for Sparc by merging parts of asm-sparc/of_device.h + * by Stephen Rothwell + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +/* This is just here during the transition */ +#include + +extern struct bus_type isa_bus_type; +extern struct bus_type ebus_bus_type; +extern struct bus_type sbus_bus_type; + +#define of_bus_type of_platform_bus_type /* for compatibility */ + +#endif /* _ASM_SPARC64_OF_PLATFORM_H */ diff --git a/include/asm-sparc/openprom.h b/include/asm-sparc/openprom.h index e812cf3b0de7..8c349f061994 100644 --- a/include/asm-sparc/openprom.h +++ b/include/asm-sparc/openprom.h @@ -1,255 +1,8 @@ -#ifndef __SPARC_OPENPROM_H -#define __SPARC_OPENPROM_H - -/* openprom.h: Prom structures and defines for access to the OPENBOOT - * prom routines and data areas. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -/* Empirical constants... */ -#define LINUX_OPPROM_MAGIC 0x10010407 - -#ifndef __ASSEMBLY__ -/* V0 prom device operations. */ -struct linux_dev_v0_funcs { - int (*v0_devopen)(char *device_str); - int (*v0_devclose)(int dev_desc); - int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); - int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); - int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf); - int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf); - int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf); - int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf); - int (*v0_seekdev)(int dev_desc, long logical_offst, int from); -}; - -/* V2 and later prom device operations. */ -struct linux_dev_v2_funcs { - int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */ - char * (*v2_dumb_mem_alloc)(char *va, unsigned sz); - void (*v2_dumb_mem_free)(char *va, unsigned sz); - - /* To map devices into virtual I/O space. */ - char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz); - void (*v2_dumb_munmap)(char *virta, unsigned size); - - int (*v2_dev_open)(char *devpath); - void (*v2_dev_close)(int d); - int (*v2_dev_read)(int d, char *buf, int nbytes); - int (*v2_dev_write)(int d, char *buf, int nbytes); - int (*v2_dev_seek)(int d, int hi, int lo); - - /* Never issued (multistage load support) */ - void (*v2_wheee2)(void); - void (*v2_wheee3)(void); -}; - -struct linux_mlist_v0 { - struct linux_mlist_v0 *theres_more; - char *start_adr; - unsigned num_bytes; -}; - -struct linux_mem_v0 { - struct linux_mlist_v0 **v0_totphys; - struct linux_mlist_v0 **v0_prommap; - struct linux_mlist_v0 **v0_available; /* What we can use */ -}; - -/* Arguments sent to the kernel from the boot prompt. */ -struct linux_arguments_v0 { - char *argv[8]; - char args[100]; - char boot_dev[2]; - int boot_dev_ctrl; - int boot_dev_unit; - int dev_partition; - char *kernel_file_name; - void *aieee1; /* XXX */ -}; - -/* V2 and up boot things. */ -struct linux_bootargs_v2 { - char **bootpath; - char **bootargs; - int *fd_stdin; - int *fd_stdout; -}; - -/* The top level PROM vector. */ -struct linux_romvec { - /* Version numbers. */ - unsigned int pv_magic_cookie; - unsigned int pv_romvers; - unsigned int pv_plugin_revision; - unsigned int pv_printrev; - - /* Version 0 memory descriptors. */ - struct linux_mem_v0 pv_v0mem; - - /* Node operations. */ - struct linux_nodeops *pv_nodeops; - - char **pv_bootstr; - struct linux_dev_v0_funcs pv_v0devops; - - char *pv_stdin; - char *pv_stdout; -#define PROMDEV_KBD 0 /* input from keyboard */ -#define PROMDEV_SCREEN 0 /* output to screen */ -#define PROMDEV_TTYA 1 /* in/out to ttya */ -#define PROMDEV_TTYB 2 /* in/out to ttyb */ - - /* Blocking getchar/putchar. NOT REENTRANT! (grr) */ - int (*pv_getchar)(void); - void (*pv_putchar)(int ch); - - /* Non-blocking variants. */ - int (*pv_nbgetchar)(void); - int (*pv_nbputchar)(int ch); - - void (*pv_putstr)(char *str, int len); - - /* Miscellany. */ - void (*pv_reboot)(char *bootstr); - void (*pv_printf)(__const__ char *fmt, ...); - void (*pv_abort)(void); - __volatile__ int *pv_ticks; - void (*pv_halt)(void); - void (**pv_synchook)(void); - - /* Evaluate a forth string, not different proto for V0 and V2->up. */ - union { - void (*v0_eval)(int len, char *str); - void (*v2_eval)(char *str); - } pv_fortheval; - - struct linux_arguments_v0 **pv_v0bootargs; - - /* Get ether address. */ - unsigned int (*pv_enaddr)(int d, char *enaddr); - - struct linux_bootargs_v2 pv_v2bootargs; - struct linux_dev_v2_funcs pv_v2devops; - - int filler[15]; - - /* This one is sun4c/sun4 only. */ - void (*pv_setctxt)(int ctxt, char *va, int pmeg); - - /* Prom version 3 Multiprocessor routines. This stuff is crazy. - * No joke. Calling these when there is only one cpu probably - * crashes the machine, have to test this. :-) - */ - - /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context - * 'thiscontext' executing at address 'prog_counter' - */ - int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr, - int thiscontext, char *prog_counter); - - /* v3_cpustop() will cause cpu 'whichcpu' to stop executing - * until a resume cpu call is made. - */ - int (*v3_cpustop)(unsigned int whichcpu); - - /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or - * resume cpu call is made. - */ - int (*v3_cpuidle)(unsigned int whichcpu); - - /* v3_cpuresume() will resume processor 'whichcpu' executing - * starting with whatever 'pc' and 'npc' were left at the - * last 'idle' or 'stop' call. - */ - int (*v3_cpuresume)(unsigned int whichcpu); -}; - -/* Routines for traversing the prom device tree. */ -struct linux_nodeops { - int (*no_nextnode)(int node); - int (*no_child)(int node); - int (*no_proplen)(int node, char *name); - int (*no_getprop)(int node, char *name, char *val); - int (*no_setprop)(int node, char *name, char *val, int len); - char * (*no_nextprop)(int node, char *name); -}; - -/* More fun PROM structures for device probing. */ -#define PROMREG_MAX 16 -#define PROMVADDR_MAX 16 -#define PROMINTR_MAX 15 - -struct linux_prom_registers { - unsigned int which_io; /* is this in OBIO space? */ - unsigned int phys_addr; /* The physical address of this register */ - unsigned int reg_size; /* How many bytes does this register take up? */ -}; - -struct linux_prom_irqs { - int pri; /* IRQ priority */ - int vector; /* This is foobar, what does it do? */ -}; - -/* Element of the "ranges" vector */ -struct linux_prom_ranges { - unsigned int ot_child_space; - unsigned int ot_child_base; /* Bus feels this */ - unsigned int ot_parent_space; - unsigned int ot_parent_base; /* CPU looks from here */ - unsigned int or_size; -}; - -/* Ranges and reg properties are a bit different for PCI. */ -struct linux_prom_pci_registers { - /* - * We don't know what information this field contain. - * We guess, PCI device function is in bits 15:8 - * So, ... - */ - unsigned int which_io; /* Let it be which_io */ - - unsigned int phys_hi; - unsigned int phys_lo; - - unsigned int size_hi; - unsigned int size_lo; -}; - -struct linux_prom_pci_ranges { - unsigned int child_phys_hi; /* Only certain bits are encoded here. */ - unsigned int child_phys_mid; - unsigned int child_phys_lo; - - unsigned int parent_phys_hi; - unsigned int parent_phys_lo; - - unsigned int size_hi; - unsigned int size_lo; -}; - -struct linux_prom_pci_assigned_addresses { - unsigned int which_io; - - unsigned int phys_hi; - unsigned int phys_lo; - - unsigned int size_hi; - unsigned int size_lo; -}; - -struct linux_prom_ebus_ranges { - unsigned int child_phys_hi; - unsigned int child_phys_lo; - - unsigned int parent_phys_hi; - unsigned int parent_phys_mid; - unsigned int parent_phys_lo; - - unsigned int size; -}; - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(__SPARC_OPENPROM_H) */ +#ifndef ___ASM_SPARC_OPENPROM_H +#define ___ASM_SPARC_OPENPROM_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/openprom_32.h b/include/asm-sparc/openprom_32.h new file mode 100644 index 000000000000..8b1649f29ed9 --- /dev/null +++ b/include/asm-sparc/openprom_32.h @@ -0,0 +1,255 @@ +#ifndef __SPARC_OPENPROM_H +#define __SPARC_OPENPROM_H + +/* openprom.h: Prom structures and defines for access to the OPENBOOT + * prom routines and data areas. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +/* Empirical constants... */ +#define LINUX_OPPROM_MAGIC 0x10010407 + +#ifndef __ASSEMBLY__ +/* V0 prom device operations. */ +struct linux_dev_v0_funcs { + int (*v0_devopen)(char *device_str); + int (*v0_devclose)(int dev_desc); + int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); + int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); + int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf); + int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf); + int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf); + int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf); + int (*v0_seekdev)(int dev_desc, long logical_offst, int from); +}; + +/* V2 and later prom device operations. */ +struct linux_dev_v2_funcs { + int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */ + char * (*v2_dumb_mem_alloc)(char *va, unsigned sz); + void (*v2_dumb_mem_free)(char *va, unsigned sz); + + /* To map devices into virtual I/O space. */ + char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz); + void (*v2_dumb_munmap)(char *virta, unsigned size); + + int (*v2_dev_open)(char *devpath); + void (*v2_dev_close)(int d); + int (*v2_dev_read)(int d, char *buf, int nbytes); + int (*v2_dev_write)(int d, char *buf, int nbytes); + int (*v2_dev_seek)(int d, int hi, int lo); + + /* Never issued (multistage load support) */ + void (*v2_wheee2)(void); + void (*v2_wheee3)(void); +}; + +struct linux_mlist_v0 { + struct linux_mlist_v0 *theres_more; + char *start_adr; + unsigned num_bytes; +}; + +struct linux_mem_v0 { + struct linux_mlist_v0 **v0_totphys; + struct linux_mlist_v0 **v0_prommap; + struct linux_mlist_v0 **v0_available; /* What we can use */ +}; + +/* Arguments sent to the kernel from the boot prompt. */ +struct linux_arguments_v0 { + char *argv[8]; + char args[100]; + char boot_dev[2]; + int boot_dev_ctrl; + int boot_dev_unit; + int dev_partition; + char *kernel_file_name; + void *aieee1; /* XXX */ +}; + +/* V2 and up boot things. */ +struct linux_bootargs_v2 { + char **bootpath; + char **bootargs; + int *fd_stdin; + int *fd_stdout; +}; + +/* The top level PROM vector. */ +struct linux_romvec { + /* Version numbers. */ + unsigned int pv_magic_cookie; + unsigned int pv_romvers; + unsigned int pv_plugin_revision; + unsigned int pv_printrev; + + /* Version 0 memory descriptors. */ + struct linux_mem_v0 pv_v0mem; + + /* Node operations. */ + struct linux_nodeops *pv_nodeops; + + char **pv_bootstr; + struct linux_dev_v0_funcs pv_v0devops; + + char *pv_stdin; + char *pv_stdout; +#define PROMDEV_KBD 0 /* input from keyboard */ +#define PROMDEV_SCREEN 0 /* output to screen */ +#define PROMDEV_TTYA 1 /* in/out to ttya */ +#define PROMDEV_TTYB 2 /* in/out to ttyb */ + + /* Blocking getchar/putchar. NOT REENTRANT! (grr) */ + int (*pv_getchar)(void); + void (*pv_putchar)(int ch); + + /* Non-blocking variants. */ + int (*pv_nbgetchar)(void); + int (*pv_nbputchar)(int ch); + + void (*pv_putstr)(char *str, int len); + + /* Miscellany. */ + void (*pv_reboot)(char *bootstr); + void (*pv_printf)(__const__ char *fmt, ...); + void (*pv_abort)(void); + __volatile__ int *pv_ticks; + void (*pv_halt)(void); + void (**pv_synchook)(void); + + /* Evaluate a forth string, not different proto for V0 and V2->up. */ + union { + void (*v0_eval)(int len, char *str); + void (*v2_eval)(char *str); + } pv_fortheval; + + struct linux_arguments_v0 **pv_v0bootargs; + + /* Get ether address. */ + unsigned int (*pv_enaddr)(int d, char *enaddr); + + struct linux_bootargs_v2 pv_v2bootargs; + struct linux_dev_v2_funcs pv_v2devops; + + int filler[15]; + + /* This one is sun4c/sun4 only. */ + void (*pv_setctxt)(int ctxt, char *va, int pmeg); + + /* Prom version 3 Multiprocessor routines. This stuff is crazy. + * No joke. Calling these when there is only one cpu probably + * crashes the machine, have to test this. :-) + */ + + /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context + * 'thiscontext' executing at address 'prog_counter' + */ + int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr, + int thiscontext, char *prog_counter); + + /* v3_cpustop() will cause cpu 'whichcpu' to stop executing + * until a resume cpu call is made. + */ + int (*v3_cpustop)(unsigned int whichcpu); + + /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or + * resume cpu call is made. + */ + int (*v3_cpuidle)(unsigned int whichcpu); + + /* v3_cpuresume() will resume processor 'whichcpu' executing + * starting with whatever 'pc' and 'npc' were left at the + * last 'idle' or 'stop' call. + */ + int (*v3_cpuresume)(unsigned int whichcpu); +}; + +/* Routines for traversing the prom device tree. */ +struct linux_nodeops { + int (*no_nextnode)(int node); + int (*no_child)(int node); + int (*no_proplen)(int node, char *name); + int (*no_getprop)(int node, char *name, char *val); + int (*no_setprop)(int node, char *name, char *val, int len); + char * (*no_nextprop)(int node, char *name); +}; + +/* More fun PROM structures for device probing. */ +#define PROMREG_MAX 16 +#define PROMVADDR_MAX 16 +#define PROMINTR_MAX 15 + +struct linux_prom_registers { + unsigned int which_io; /* is this in OBIO space? */ + unsigned int phys_addr; /* The physical address of this register */ + unsigned int reg_size; /* How many bytes does this register take up? */ +}; + +struct linux_prom_irqs { + int pri; /* IRQ priority */ + int vector; /* This is foobar, what does it do? */ +}; + +/* Element of the "ranges" vector */ +struct linux_prom_ranges { + unsigned int ot_child_space; + unsigned int ot_child_base; /* Bus feels this */ + unsigned int ot_parent_space; + unsigned int ot_parent_base; /* CPU looks from here */ + unsigned int or_size; +}; + +/* Ranges and reg properties are a bit different for PCI. */ +struct linux_prom_pci_registers { + /* + * We don't know what information this field contain. + * We guess, PCI device function is in bits 15:8 + * So, ... + */ + unsigned int which_io; /* Let it be which_io */ + + unsigned int phys_hi; + unsigned int phys_lo; + + unsigned int size_hi; + unsigned int size_lo; +}; + +struct linux_prom_pci_ranges { + unsigned int child_phys_hi; /* Only certain bits are encoded here. */ + unsigned int child_phys_mid; + unsigned int child_phys_lo; + + unsigned int parent_phys_hi; + unsigned int parent_phys_lo; + + unsigned int size_hi; + unsigned int size_lo; +}; + +struct linux_prom_pci_assigned_addresses { + unsigned int which_io; + + unsigned int phys_hi; + unsigned int phys_lo; + + unsigned int size_hi; + unsigned int size_lo; +}; + +struct linux_prom_ebus_ranges { + unsigned int child_phys_hi; + unsigned int child_phys_lo; + + unsigned int parent_phys_hi; + unsigned int parent_phys_mid; + unsigned int parent_phys_lo; + + unsigned int size; +}; + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC_OPENPROM_H) */ diff --git a/include/asm-sparc/openprom_64.h b/include/asm-sparc/openprom_64.h new file mode 100644 index 000000000000..b69e4a8c9170 --- /dev/null +++ b/include/asm-sparc/openprom_64.h @@ -0,0 +1,280 @@ +#ifndef __SPARC64_OPENPROM_H +#define __SPARC64_OPENPROM_H + +/* openprom.h: Prom structures and defines for access to the OPENBOOT + * prom routines and data areas. + * + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef __ASSEMBLY__ +/* V0 prom device operations. */ +struct linux_dev_v0_funcs { + int (*v0_devopen)(char *device_str); + int (*v0_devclose)(int dev_desc); + int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); + int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); + int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf); + int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf); + int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf); + int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf); + int (*v0_seekdev)(int dev_desc, long logical_offst, int from); +}; + +/* V2 and later prom device operations. */ +struct linux_dev_v2_funcs { + int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */ + char * (*v2_dumb_mem_alloc)(char *va, unsigned sz); + void (*v2_dumb_mem_free)(char *va, unsigned sz); + + /* To map devices into virtual I/O space. */ + char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz); + void (*v2_dumb_munmap)(char *virta, unsigned size); + + int (*v2_dev_open)(char *devpath); + void (*v2_dev_close)(int d); + int (*v2_dev_read)(int d, char *buf, int nbytes); + int (*v2_dev_write)(int d, char *buf, int nbytes); + int (*v2_dev_seek)(int d, int hi, int lo); + + /* Never issued (multistage load support) */ + void (*v2_wheee2)(void); + void (*v2_wheee3)(void); +}; + +struct linux_mlist_v0 { + struct linux_mlist_v0 *theres_more; + unsigned start_adr; + unsigned num_bytes; +}; + +struct linux_mem_v0 { + struct linux_mlist_v0 **v0_totphys; + struct linux_mlist_v0 **v0_prommap; + struct linux_mlist_v0 **v0_available; /* What we can use */ +}; + +/* Arguments sent to the kernel from the boot prompt. */ +struct linux_arguments_v0 { + char *argv[8]; + char args[100]; + char boot_dev[2]; + int boot_dev_ctrl; + int boot_dev_unit; + int dev_partition; + char *kernel_file_name; + void *aieee1; /* XXX */ +}; + +/* V2 and up boot things. */ +struct linux_bootargs_v2 { + char **bootpath; + char **bootargs; + int *fd_stdin; + int *fd_stdout; +}; + +/* The top level PROM vector. */ +struct linux_romvec { + /* Version numbers. */ + unsigned int pv_magic_cookie; + unsigned int pv_romvers; + unsigned int pv_plugin_revision; + unsigned int pv_printrev; + + /* Version 0 memory descriptors. */ + struct linux_mem_v0 pv_v0mem; + + /* Node operations. */ + struct linux_nodeops *pv_nodeops; + + char **pv_bootstr; + struct linux_dev_v0_funcs pv_v0devops; + + char *pv_stdin; + char *pv_stdout; +#define PROMDEV_KBD 0 /* input from keyboard */ +#define PROMDEV_SCREEN 0 /* output to screen */ +#define PROMDEV_TTYA 1 /* in/out to ttya */ +#define PROMDEV_TTYB 2 /* in/out to ttyb */ + + /* Blocking getchar/putchar. NOT REENTRANT! (grr) */ + int (*pv_getchar)(void); + void (*pv_putchar)(int ch); + + /* Non-blocking variants. */ + int (*pv_nbgetchar)(void); + int (*pv_nbputchar)(int ch); + + void (*pv_putstr)(char *str, int len); + + /* Miscellany. */ + void (*pv_reboot)(char *bootstr); + void (*pv_printf)(__const__ char *fmt, ...); + void (*pv_abort)(void); + __volatile__ int *pv_ticks; + void (*pv_halt)(void); + void (**pv_synchook)(void); + + /* Evaluate a forth string, not different proto for V0 and V2->up. */ + union { + void (*v0_eval)(int len, char *str); + void (*v2_eval)(char *str); + } pv_fortheval; + + struct linux_arguments_v0 **pv_v0bootargs; + + /* Get ether address. */ + unsigned int (*pv_enaddr)(int d, char *enaddr); + + struct linux_bootargs_v2 pv_v2bootargs; + struct linux_dev_v2_funcs pv_v2devops; + + int filler[15]; + + /* This one is sun4c/sun4 only. */ + void (*pv_setctxt)(int ctxt, char *va, int pmeg); + + /* Prom version 3 Multiprocessor routines. This stuff is crazy. + * No joke. Calling these when there is only one cpu probably + * crashes the machine, have to test this. :-) + */ + + /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context + * 'thiscontext' executing at address 'prog_counter' + */ + int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr, + int thiscontext, char *prog_counter); + + /* v3_cpustop() will cause cpu 'whichcpu' to stop executing + * until a resume cpu call is made. + */ + int (*v3_cpustop)(unsigned int whichcpu); + + /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or + * resume cpu call is made. + */ + int (*v3_cpuidle)(unsigned int whichcpu); + + /* v3_cpuresume() will resume processor 'whichcpu' executing + * starting with whatever 'pc' and 'npc' were left at the + * last 'idle' or 'stop' call. + */ + int (*v3_cpuresume)(unsigned int whichcpu); +}; + +/* Routines for traversing the prom device tree. */ +struct linux_nodeops { + int (*no_nextnode)(int node); + int (*no_child)(int node); + int (*no_proplen)(int node, char *name); + int (*no_getprop)(int node, char *name, char *val); + int (*no_setprop)(int node, char *name, char *val, int len); + char * (*no_nextprop)(int node, char *name); +}; + +/* More fun PROM structures for device probing. */ +#define PROMREG_MAX 24 +#define PROMVADDR_MAX 16 +#define PROMINTR_MAX 32 + +struct linux_prom_registers { + unsigned which_io; /* hi part of physical address */ + unsigned phys_addr; /* The physical address of this register */ + int reg_size; /* How many bytes does this register take up? */ +}; + +struct linux_prom64_registers { + unsigned long phys_addr; + unsigned long reg_size; +}; + +struct linux_prom_irqs { + int pri; /* IRQ priority */ + int vector; /* This is foobar, what does it do? */ +}; + +/* Element of the "ranges" vector */ +struct linux_prom_ranges { + unsigned int ot_child_space; + unsigned int ot_child_base; /* Bus feels this */ + unsigned int ot_parent_space; + unsigned int ot_parent_base; /* CPU looks from here */ + unsigned int or_size; +}; + +struct linux_prom64_ranges { + unsigned long ot_child_base; /* Bus feels this */ + unsigned long ot_parent_base; /* CPU looks from here */ + unsigned long or_size; +}; + +/* Ranges and reg properties are a bit different for PCI. */ +struct linux_prom_pci_registers { + unsigned int phys_hi; + unsigned int phys_mid; + unsigned int phys_lo; + + unsigned int size_hi; + unsigned int size_lo; +}; + +struct linux_prom_pci_ranges { + unsigned int child_phys_hi; /* Only certain bits are encoded here. */ + unsigned int child_phys_mid; + unsigned int child_phys_lo; + + unsigned int parent_phys_hi; + unsigned int parent_phys_lo; + + unsigned int size_hi; + unsigned int size_lo; +}; + +struct linux_prom_pci_intmap { + unsigned int phys_hi; + unsigned int phys_mid; + unsigned int phys_lo; + + unsigned int interrupt; + + int cnode; + unsigned int cinterrupt; +}; + +struct linux_prom_pci_intmask { + unsigned int phys_hi; + unsigned int phys_mid; + unsigned int phys_lo; + unsigned int interrupt; +}; + +struct linux_prom_ebus_ranges { + unsigned int child_phys_hi; + unsigned int child_phys_lo; + + unsigned int parent_phys_hi; + unsigned int parent_phys_mid; + unsigned int parent_phys_lo; + + unsigned int size; +}; + +struct linux_prom_ebus_intmap { + unsigned int phys_hi; + unsigned int phys_lo; + + unsigned int interrupt; + + int cnode; + unsigned int cinterrupt; +}; + +struct linux_prom_ebus_intmask { + unsigned int phys_hi; + unsigned int phys_lo; + unsigned int interrupt; +}; +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC64_OPENPROM_H) */ diff --git a/include/asm-sparc/oplib.h b/include/asm-sparc/oplib.h index 00f487e74d92..e88d7c04a292 100644 --- a/include/asm-sparc/oplib.h +++ b/include/asm-sparc/oplib.h @@ -1,272 +1,8 @@ -/* - * oplib.h: Describes the interface and available routines in the - * Linux Prom library. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __SPARC_OPLIB_H -#define __SPARC_OPLIB_H - -#include -#include -#include - -/* The master romvec pointer... */ -extern struct linux_romvec *romvec; - -/* Enumeration to describe the prom major version we have detected. */ -enum prom_major_version { - PROM_V0, /* Original sun4c V0 prom */ - PROM_V2, /* sun4c and early sun4m V2 prom */ - PROM_V3, /* sun4m and later, up to sun4d/sun4e machines V3 */ - PROM_P1275, /* IEEE compliant ISA based Sun PROM, only sun4u */ - PROM_SUN4, /* Old sun4 proms are totally different, but we'll shoehorn it to make it fit */ -}; - -extern enum prom_major_version prom_vers; -/* Revision, and firmware revision. */ -extern unsigned int prom_rev, prom_prev; - -/* Root node of the prom device tree, this stays constant after - * initialization is complete. - */ -extern int prom_root_node; - -/* Pointer to prom structure containing the device tree traversal - * and usage utility functions. Only prom-lib should use these, - * users use the interface defined by the library only! - */ -extern struct linux_nodeops *prom_nodeops; - -/* The functions... */ - -/* You must call prom_init() before using any of the library services, - * preferably as early as possible. Pass it the romvec pointer. - */ -extern void prom_init(struct linux_romvec *rom_ptr); - -/* Boot argument acquisition, returns the boot command line string. */ -extern char *prom_getbootargs(void); - -/* Device utilities. */ - -/* Map and unmap devices in IO space at virtual addresses. Note that the - * virtual address you pass is a request and the prom may put your mappings - * somewhere else, so check your return value as that is where your new - * mappings really are! - * - * Another note, these are only available on V2 or higher proms! - */ -extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes); -extern void prom_unmapio(char *virt_addr, unsigned int num_bytes); - -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - -/* Miscellaneous routines, don't really fit in any category per se. */ - -/* Reboot the machine with the command line passed. */ -extern void prom_reboot(char *boot_command); - -/* Evaluate the forth string passed. */ -extern void prom_feval(char *forth_string); - -/* Enter the prom, with possibility of continuation with the 'go' - * command in newer proms. - */ -extern void prom_cmdline(void); - -/* Enter the prom, with no chance of continuation for the stand-alone - * which calls this. - */ -extern void prom_halt(void) __attribute__ ((noreturn)); - -/* Set the PROM 'sync' callback function to the passed function pointer. - * When the user gives the 'sync' command at the prom prompt while the - * kernel is still active, the prom will call this routine. - * - * XXX The arguments are different on V0 vs. V2->higher proms, grrr! XXX - */ -typedef void (*sync_func_t)(void); -extern void prom_setsync(sync_func_t func_ptr); - -/* Acquire the IDPROM of the root node in the prom device tree. This - * gets passed a buffer where you would like it stuffed. The return value - * is the format type of this idprom or 0xff on error. - */ -extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); - -/* Get the prom major version. */ -extern int prom_version(void); - -/* Get the prom plugin revision. */ -extern int prom_getrev(void); - -/* Get the prom firmware revision. */ -extern int prom_getprev(void); - -/* Character operations to/from the console.... */ - -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - -/* Blocking get character from console. */ -extern char prom_getchar(void); - -/* Blocking put character to console. */ -extern void prom_putchar(char character); - -/* Prom's internal routines, don't use in kernel/boot code. */ -extern void prom_printf(char *fmt, ...); -extern void prom_write(const char *buf, unsigned int len); - -/* Multiprocessor operations... */ - -/* Start the CPU with the given device tree node, context table, and context - * at the passed program counter. - */ -extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table, - int context, char *program_counter); - -/* Stop the CPU with the passed device tree node. */ -extern int prom_stopcpu(int cpunode); - -/* Idle the CPU with the passed device tree node. */ -extern int prom_idlecpu(int cpunode); - -/* Re-Start the CPU with the passed device tree node. */ -extern int prom_restartcpu(int cpunode); - -/* PROM memory allocation facilities... */ - -/* Allocated at possibly the given virtual address a chunk of the - * indicated size. - */ -extern char *prom_alloc(char *virt_hint, unsigned int size); - -/* Free a previously allocated chunk. */ -extern void prom_free(char *virt_addr, unsigned int size); - -/* Sun4/sun4c specific memory-management startup hook. */ - -/* Map the passed segment in the given context at the passed - * virtual address. - */ -extern void prom_putsegment(int context, unsigned long virt_addr, - int physical_segment); - - -/* PROM device tree traversal functions... */ - -#ifdef PROMLIB_INTERNAL - -/* Internal version of prom_getchild. */ -extern int __prom_getchild(int parent_node); - -/* Internal version of prom_getsibling. */ -extern int __prom_getsibling(int node); - +#ifndef ___ASM_SPARC_OPLIB_H +#define ___ASM_SPARC_OPLIB_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - - -/* Get the child node of the given node, or zero if no child exists. */ -extern int prom_getchild(int parent_node); - -/* Get the next sibling node of the given node, or zero if no further - * siblings exist. - */ -extern int prom_getsibling(int node); - -/* Get the length, at the passed node, of the given property type. - * Returns -1 on error (ie. no such property at this node). - */ -extern int prom_getproplen(int thisnode, char *property); - -/* Fetch the requested property using the given buffer. Returns - * the number of bytes the prom put into your buffer or -1 on error. - */ -extern int __must_check prom_getproperty(int thisnode, char *property, - char *prop_buffer, int propbuf_size); - -/* Acquire an integer property. */ -extern int prom_getint(int node, char *property); - -/* Acquire an integer property, with a default value. */ -extern int prom_getintdefault(int node, char *property, int defval); - -/* Acquire a boolean property, 0=FALSE 1=TRUE. */ -extern int prom_getbool(int node, char *prop); - -/* Acquire a string property, null string on error. */ -extern void prom_getstring(int node, char *prop, char *buf, int bufsize); - -/* Does the passed node have the given "name"? YES=1 NO=0 */ -extern int prom_nodematch(int thisnode, char *name); - -/* Search all siblings starting at the passed node for "name" matching - * the given string. Returns the node on success, zero on failure. - */ -extern int prom_searchsiblings(int node_start, char *name); - -/* Return the first property type, as a string, for the given node. - * Returns a null string on error. - */ -extern char *prom_firstprop(int node, char *buffer); - -/* Returns the next property after the passed property for the given - * node. Returns null string on failure. - */ -extern char *prom_nextprop(int node, char *prev_property, char *buffer); - -/* Returns phandle of the path specified */ -extern int prom_finddevice(char *name); - -/* Returns 1 if the specified node has given property. */ -extern int prom_node_has_property(int node, char *property); - -/* Set the indicated property at the given node with the passed value. - * Returns the number of bytes of your value that the prom took. - */ -extern int prom_setprop(int node, char *prop_name, char *prop_value, - int value_size); - -extern int prom_pathtoinode(char *path); -extern int prom_inst2pkg(int); - -/* Dorking with Bus ranges... */ - -/* Apply promlib probes OBIO ranges to registers. */ -extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs); - -/* Apply ranges of any prom node (and optionally parent node as well) to registers. */ -extern void prom_apply_generic_ranges(int node, int parent, - struct linux_prom_registers *sbusregs, int nregs); - -/* CPU probing helpers. */ -int cpu_find_by_instance(int instance, int *prom_node, int *mid); -int cpu_find_by_mid(int mid, int *prom_node); -int cpu_get_hwmid(int prom_node); - -extern spinlock_t prom_lock; - -#endif /* !(__SPARC_OPLIB_H) */ diff --git a/include/asm-sparc/oplib_32.h b/include/asm-sparc/oplib_32.h new file mode 100644 index 000000000000..b2631da259e0 --- /dev/null +++ b/include/asm-sparc/oplib_32.h @@ -0,0 +1,272 @@ +/* + * oplib.h: Describes the interface and available routines in the + * Linux Prom library. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef __SPARC_OPLIB_H +#define __SPARC_OPLIB_H + +#include +#include +#include + +/* The master romvec pointer... */ +extern struct linux_romvec *romvec; + +/* Enumeration to describe the prom major version we have detected. */ +enum prom_major_version { + PROM_V0, /* Original sun4c V0 prom */ + PROM_V2, /* sun4c and early sun4m V2 prom */ + PROM_V3, /* sun4m and later, up to sun4d/sun4e machines V3 */ + PROM_P1275, /* IEEE compliant ISA based Sun PROM, only sun4u */ + PROM_SUN4, /* Old sun4 proms are totally different, but we'll shoehorn it to make it fit */ +}; + +extern enum prom_major_version prom_vers; +/* Revision, and firmware revision. */ +extern unsigned int prom_rev, prom_prev; + +/* Root node of the prom device tree, this stays constant after + * initialization is complete. + */ +extern int prom_root_node; + +/* Pointer to prom structure containing the device tree traversal + * and usage utility functions. Only prom-lib should use these, + * users use the interface defined by the library only! + */ +extern struct linux_nodeops *prom_nodeops; + +/* The functions... */ + +/* You must call prom_init() before using any of the library services, + * preferably as early as possible. Pass it the romvec pointer. + */ +extern void prom_init(struct linux_romvec *rom_ptr); + +/* Boot argument acquisition, returns the boot command line string. */ +extern char *prom_getbootargs(void); + +/* Device utilities. */ + +/* Map and unmap devices in IO space at virtual addresses. Note that the + * virtual address you pass is a request and the prom may put your mappings + * somewhere else, so check your return value as that is where your new + * mappings really are! + * + * Another note, these are only available on V2 or higher proms! + */ +extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes); +extern void prom_unmapio(char *virt_addr, unsigned int num_bytes); + +/* Device operations. */ + +/* Open the device described by the passed string. Note, that the format + * of the string is different on V0 vs. V2->higher proms. The caller must + * know what he/she is doing! Returns the device descriptor, an int. + */ +extern int prom_devopen(char *device_string); + +/* Close a previously opened device described by the passed integer + * descriptor. + */ +extern int prom_devclose(int device_handle); + +/* Do a seek operation on the device described by the passed integer + * descriptor. + */ +extern void prom_seek(int device_handle, unsigned int seek_hival, + unsigned int seek_lowval); + +/* Miscellaneous routines, don't really fit in any category per se. */ + +/* Reboot the machine with the command line passed. */ +extern void prom_reboot(char *boot_command); + +/* Evaluate the forth string passed. */ +extern void prom_feval(char *forth_string); + +/* Enter the prom, with possibility of continuation with the 'go' + * command in newer proms. + */ +extern void prom_cmdline(void); + +/* Enter the prom, with no chance of continuation for the stand-alone + * which calls this. + */ +extern void prom_halt(void) __attribute__ ((noreturn)); + +/* Set the PROM 'sync' callback function to the passed function pointer. + * When the user gives the 'sync' command at the prom prompt while the + * kernel is still active, the prom will call this routine. + * + * XXX The arguments are different on V0 vs. V2->higher proms, grrr! XXX + */ +typedef void (*sync_func_t)(void); +extern void prom_setsync(sync_func_t func_ptr); + +/* Acquire the IDPROM of the root node in the prom device tree. This + * gets passed a buffer where you would like it stuffed. The return value + * is the format type of this idprom or 0xff on error. + */ +extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); + +/* Get the prom major version. */ +extern int prom_version(void); + +/* Get the prom plugin revision. */ +extern int prom_getrev(void); + +/* Get the prom firmware revision. */ +extern int prom_getprev(void); + +/* Character operations to/from the console.... */ + +/* Non-blocking get character from console. */ +extern int prom_nbgetchar(void); + +/* Non-blocking put character to console. */ +extern int prom_nbputchar(char character); + +/* Blocking get character from console. */ +extern char prom_getchar(void); + +/* Blocking put character to console. */ +extern void prom_putchar(char character); + +/* Prom's internal routines, don't use in kernel/boot code. */ +extern void prom_printf(char *fmt, ...); +extern void prom_write(const char *buf, unsigned int len); + +/* Multiprocessor operations... */ + +/* Start the CPU with the given device tree node, context table, and context + * at the passed program counter. + */ +extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table, + int context, char *program_counter); + +/* Stop the CPU with the passed device tree node. */ +extern int prom_stopcpu(int cpunode); + +/* Idle the CPU with the passed device tree node. */ +extern int prom_idlecpu(int cpunode); + +/* Re-Start the CPU with the passed device tree node. */ +extern int prom_restartcpu(int cpunode); + +/* PROM memory allocation facilities... */ + +/* Allocated at possibly the given virtual address a chunk of the + * indicated size. + */ +extern char *prom_alloc(char *virt_hint, unsigned int size); + +/* Free a previously allocated chunk. */ +extern void prom_free(char *virt_addr, unsigned int size); + +/* Sun4/sun4c specific memory-management startup hook. */ + +/* Map the passed segment in the given context at the passed + * virtual address. + */ +extern void prom_putsegment(int context, unsigned long virt_addr, + int physical_segment); + + +/* PROM device tree traversal functions... */ + +#ifdef PROMLIB_INTERNAL + +/* Internal version of prom_getchild. */ +extern int __prom_getchild(int parent_node); + +/* Internal version of prom_getsibling. */ +extern int __prom_getsibling(int node); + +#endif + + +/* Get the child node of the given node, or zero if no child exists. */ +extern int prom_getchild(int parent_node); + +/* Get the next sibling node of the given node, or zero if no further + * siblings exist. + */ +extern int prom_getsibling(int node); + +/* Get the length, at the passed node, of the given property type. + * Returns -1 on error (ie. no such property at this node). + */ +extern int prom_getproplen(int thisnode, char *property); + +/* Fetch the requested property using the given buffer. Returns + * the number of bytes the prom put into your buffer or -1 on error. + */ +extern int __must_check prom_getproperty(int thisnode, char *property, + char *prop_buffer, int propbuf_size); + +/* Acquire an integer property. */ +extern int prom_getint(int node, char *property); + +/* Acquire an integer property, with a default value. */ +extern int prom_getintdefault(int node, char *property, int defval); + +/* Acquire a boolean property, 0=FALSE 1=TRUE. */ +extern int prom_getbool(int node, char *prop); + +/* Acquire a string property, null string on error. */ +extern void prom_getstring(int node, char *prop, char *buf, int bufsize); + +/* Does the passed node have the given "name"? YES=1 NO=0 */ +extern int prom_nodematch(int thisnode, char *name); + +/* Search all siblings starting at the passed node for "name" matching + * the given string. Returns the node on success, zero on failure. + */ +extern int prom_searchsiblings(int node_start, char *name); + +/* Return the first property type, as a string, for the given node. + * Returns a null string on error. + */ +extern char *prom_firstprop(int node, char *buffer); + +/* Returns the next property after the passed property for the given + * node. Returns null string on failure. + */ +extern char *prom_nextprop(int node, char *prev_property, char *buffer); + +/* Returns phandle of the path specified */ +extern int prom_finddevice(char *name); + +/* Returns 1 if the specified node has given property. */ +extern int prom_node_has_property(int node, char *property); + +/* Set the indicated property at the given node with the passed value. + * Returns the number of bytes of your value that the prom took. + */ +extern int prom_setprop(int node, char *prop_name, char *prop_value, + int value_size); + +extern int prom_pathtoinode(char *path); +extern int prom_inst2pkg(int); + +/* Dorking with Bus ranges... */ + +/* Apply promlib probes OBIO ranges to registers. */ +extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs); + +/* Apply ranges of any prom node (and optionally parent node as well) to registers. */ +extern void prom_apply_generic_ranges(int node, int parent, + struct linux_prom_registers *sbusregs, int nregs); + +/* CPU probing helpers. */ +int cpu_find_by_instance(int instance, int *prom_node, int *mid); +int cpu_find_by_mid(int mid, int *prom_node); +int cpu_get_hwmid(int prom_node); + +extern spinlock_t prom_lock; + +#endif /* !(__SPARC_OPLIB_H) */ diff --git a/include/asm-sparc/oplib_64.h b/include/asm-sparc/oplib_64.h new file mode 100644 index 000000000000..6d2c2ca98039 --- /dev/null +++ b/include/asm-sparc/oplib_64.h @@ -0,0 +1,322 @@ +/* oplib.h: Describes the interface and available routines in the + * Linux Prom library. + * + * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) + * Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#ifndef __SPARC64_OPLIB_H +#define __SPARC64_OPLIB_H + +#include + +/* OBP version string. */ +extern char prom_version[]; + +/* Root node of the prom device tree, this stays constant after + * initialization is complete. + */ +extern int prom_root_node; + +/* PROM stdin and stdout */ +extern int prom_stdin, prom_stdout; + +/* /chosen node of the prom device tree, this stays constant after + * initialization is complete. + */ +extern int prom_chosen_node; + +/* Helper values and strings in arch/sparc64/kernel/head.S */ +extern const char prom_peer_name[]; +extern const char prom_compatible_name[]; +extern const char prom_root_compatible[]; +extern const char prom_cpu_compatible[]; +extern const char prom_finddev_name[]; +extern const char prom_chosen_path[]; +extern const char prom_cpu_path[]; +extern const char prom_getprop_name[]; +extern const char prom_mmu_name[]; +extern const char prom_callmethod_name[]; +extern const char prom_translate_name[]; +extern const char prom_map_name[]; +extern const char prom_unmap_name[]; +extern int prom_mmu_ihandle_cache; +extern unsigned int prom_boot_mapped_pc; +extern unsigned int prom_boot_mapping_mode; +extern unsigned long prom_boot_mapping_phys_high, prom_boot_mapping_phys_low; + +struct linux_mlist_p1275 { + struct linux_mlist_p1275 *theres_more; + unsigned long start_adr; + unsigned long num_bytes; +}; + +struct linux_mem_p1275 { + struct linux_mlist_p1275 **p1275_totphys; + struct linux_mlist_p1275 **p1275_prommap; + struct linux_mlist_p1275 **p1275_available; /* What we can use */ +}; + +/* The functions... */ + +/* You must call prom_init() before using any of the library services, + * preferably as early as possible. Pass it the romvec pointer. + */ +extern void prom_init(void *cif_handler, void *cif_stack); + +/* Boot argument acquisition, returns the boot command line string. */ +extern char *prom_getbootargs(void); + +/* Device utilities. */ + +/* Device operations. */ + +/* Open the device described by the passed string. Note, that the format + * of the string is different on V0 vs. V2->higher proms. The caller must + * know what he/she is doing! Returns the device descriptor, an int. + */ +extern int prom_devopen(const char *device_string); + +/* Close a previously opened device described by the passed integer + * descriptor. + */ +extern int prom_devclose(int device_handle); + +/* Do a seek operation on the device described by the passed integer + * descriptor. + */ +extern void prom_seek(int device_handle, unsigned int seek_hival, + unsigned int seek_lowval); + +/* Miscellaneous routines, don't really fit in any category per se. */ + +/* Reboot the machine with the command line passed. */ +extern void prom_reboot(const char *boot_command); + +/* Evaluate the forth string passed. */ +extern void prom_feval(const char *forth_string); + +/* Enter the prom, with possibility of continuation with the 'go' + * command in newer proms. + */ +extern void prom_cmdline(void); + +/* Enter the prom, with no chance of continuation for the stand-alone + * which calls this. + */ +extern void prom_halt(void) __attribute__ ((noreturn)); + +/* Halt and power-off the machine. */ +extern void prom_halt_power_off(void) __attribute__ ((noreturn)); + +/* Set the PROM 'sync' callback function to the passed function pointer. + * When the user gives the 'sync' command at the prom prompt while the + * kernel is still active, the prom will call this routine. + * + */ +typedef int (*callback_func_t)(long *cmd); +extern void prom_setcallback(callback_func_t func_ptr); + +/* Acquire the IDPROM of the root node in the prom device tree. This + * gets passed a buffer where you would like it stuffed. The return value + * is the format type of this idprom or 0xff on error. + */ +extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); + +/* Character operations to/from the console.... */ + +/* Non-blocking get character from console. */ +extern int prom_nbgetchar(void); + +/* Non-blocking put character to console. */ +extern int prom_nbputchar(char character); + +/* Blocking get character from console. */ +extern char prom_getchar(void); + +/* Blocking put character to console. */ +extern void prom_putchar(char character); + +/* Prom's internal routines, don't use in kernel/boot code. */ +extern void prom_printf(const char *fmt, ...); +extern void prom_write(const char *buf, unsigned int len); + +/* Multiprocessor operations... */ +#ifdef CONFIG_SMP +/* Start the CPU with the given device tree node at the passed program + * counter with the given arg passed in via register %o0. + */ +extern void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg); + +/* Start the CPU with the given cpu ID at the passed program + * counter with the given arg passed in via register %o0. + */ +extern void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg); + +/* Stop the CPU with the given cpu ID. */ +extern void prom_stopcpu_cpuid(int cpuid); + +/* Stop the current CPU. */ +extern void prom_stopself(void); + +/* Idle the current CPU. */ +extern void prom_idleself(void); + +/* Resume the CPU with the passed device tree node. */ +extern void prom_resumecpu(int cpunode); +#endif + +/* Power management interfaces. */ + +/* Put the current CPU to sleep. */ +extern void prom_sleepself(void); + +/* Put the entire system to sleep. */ +extern int prom_sleepsystem(void); + +/* Initiate a wakeup event. */ +extern int prom_wakeupsystem(void); + +/* MMU and memory related OBP interfaces. */ + +/* Get unique string identifying SIMM at given physical address. */ +extern int prom_getunumber(int syndrome_code, + unsigned long phys_addr, + char *buf, int buflen); + +/* Retain physical memory to the caller across soft resets. */ +extern unsigned long prom_retain(const char *name, + unsigned long pa_low, unsigned long pa_high, + long size, long align); + +/* Load explicit I/D TLB entries into the calling processor. */ +extern long prom_itlb_load(unsigned long index, + unsigned long tte_data, + unsigned long vaddr); + +extern long prom_dtlb_load(unsigned long index, + unsigned long tte_data, + unsigned long vaddr); + +/* Map/Unmap client program address ranges. First the format of + * the mapping mode argument. + */ +#define PROM_MAP_WRITE 0x0001 /* Writable */ +#define PROM_MAP_READ 0x0002 /* Readable - sw */ +#define PROM_MAP_EXEC 0x0004 /* Executable - sw */ +#define PROM_MAP_LOCKED 0x0010 /* Locked, use i/dtlb load calls for this instead */ +#define PROM_MAP_CACHED 0x0020 /* Cacheable in both L1 and L2 caches */ +#define PROM_MAP_SE 0x0040 /* Side-Effects */ +#define PROM_MAP_GLOB 0x0080 /* Global */ +#define PROM_MAP_IE 0x0100 /* Invert-Endianness */ +#define PROM_MAP_DEFAULT (PROM_MAP_WRITE | PROM_MAP_READ | PROM_MAP_EXEC | PROM_MAP_CACHED) + +extern int prom_map(int mode, unsigned long size, + unsigned long vaddr, unsigned long paddr); +extern void prom_unmap(unsigned long size, unsigned long vaddr); + + +/* PROM device tree traversal functions... */ + +#ifdef PROMLIB_INTERNAL + +/* Internal version of prom_getchild. */ +extern int __prom_getchild(int parent_node); + +/* Internal version of prom_getsibling. */ +extern int __prom_getsibling(int node); + +#endif + +/* Get the child node of the given node, or zero if no child exists. */ +extern int prom_getchild(int parent_node); + +/* Get the next sibling node of the given node, or zero if no further + * siblings exist. + */ +extern int prom_getsibling(int node); + +/* Get the length, at the passed node, of the given property type. + * Returns -1 on error (ie. no such property at this node). + */ +extern int prom_getproplen(int thisnode, const char *property); + +/* Fetch the requested property using the given buffer. Returns + * the number of bytes the prom put into your buffer or -1 on error. + */ +extern int prom_getproperty(int thisnode, const char *property, + char *prop_buffer, int propbuf_size); + +/* Acquire an integer property. */ +extern int prom_getint(int node, const char *property); + +/* Acquire an integer property, with a default value. */ +extern int prom_getintdefault(int node, const char *property, int defval); + +/* Acquire a boolean property, 0=FALSE 1=TRUE. */ +extern int prom_getbool(int node, const char *prop); + +/* Acquire a string property, null string on error. */ +extern void prom_getstring(int node, const char *prop, char *buf, int bufsize); + +/* Does the passed node have the given "name"? YES=1 NO=0 */ +extern int prom_nodematch(int thisnode, const char *name); + +/* Search all siblings starting at the passed node for "name" matching + * the given string. Returns the node on success, zero on failure. + */ +extern int prom_searchsiblings(int node_start, const char *name); + +/* Return the first property type, as a string, for the given node. + * Returns a null string on error. Buffer should be at least 32B long. + */ +extern char *prom_firstprop(int node, char *buffer); + +/* Returns the next property after the passed property for the given + * node. Returns null string on failure. Buffer should be at least 32B long. + */ +extern char *prom_nextprop(int node, const char *prev_property, char *buffer); + +/* Returns 1 if the specified node has given property. */ +extern int prom_node_has_property(int node, const char *property); + +/* Returns phandle of the path specified */ +extern int prom_finddevice(const char *name); + +/* Set the indicated property at the given node with the passed value. + * Returns the number of bytes of your value that the prom took. + */ +extern int prom_setprop(int node, const char *prop_name, char *prop_value, + int value_size); + +extern int prom_pathtoinode(const char *path); +extern int prom_inst2pkg(int); +extern int prom_service_exists(const char *service_name); +extern void prom_sun4v_guest_soft_state(void); + +extern int prom_ihandle2path(int handle, char *buffer, int bufsize); + +/* Client interface level routines. */ +extern long p1275_cmd(const char *, long, ...); + +#if 0 +#define P1275_SIZE(x) ((((long)((x) / 32)) << 32) | (x)) +#else +#define P1275_SIZE(x) x +#endif + +/* We support at most 16 input and 1 output argument */ +#define P1275_ARG_NUMBER 0 +#define P1275_ARG_IN_STRING 1 +#define P1275_ARG_OUT_BUF 2 +#define P1275_ARG_OUT_32B 3 +#define P1275_ARG_IN_FUNCTION 4 +#define P1275_ARG_IN_BUF 5 +#define P1275_ARG_IN_64B 6 + +#define P1275_IN(x) ((x) & 0xf) +#define P1275_OUT(x) (((x) << 4) & 0xf0) +#define P1275_INOUT(i,o) (P1275_IN(i)|P1275_OUT(o)) +#define P1275_ARG(n,x) ((x) << ((n)*3 + 8)) + +#endif /* !(__SPARC64_OPLIB_H) */ diff --git a/include/asm-sparc/page.h b/include/asm-sparc/page.h index 14de518cc38f..f32f49fcf75c 100644 --- a/include/asm-sparc/page.h +++ b/include/asm-sparc/page.h @@ -1,163 +1,8 @@ -/* - * page.h: Various defines and such for MMU operations on the Sparc for - * the Linux kernel. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC_PAGE_H -#define _SPARC_PAGE_H - -#ifdef CONFIG_SUN4 -#define PAGE_SHIFT 13 +#ifndef ___ASM_SPARC_PAGE_H +#define ___ASM_SPARC_PAGE_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define PAGE_SHIFT 12 +#include #endif -#ifndef __ASSEMBLY__ -/* I have my suspicions... -DaveM */ -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#else -#define PAGE_SIZE (1 << PAGE_SHIFT) -#endif -#define PAGE_MASK (~(PAGE_SIZE-1)) - -#include - -#ifndef __ASSEMBLY__ - -#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) -#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) -#define clear_user_page(addr, vaddr, page) \ - do { clear_page(addr); \ - sparc_flush_page_to_ram(page); \ - } while (0) -#define copy_user_page(to, from, vaddr, page) \ - do { copy_page(to, from); \ - sparc_flush_page_to_ram(page); \ - } while (0) - -/* The following structure is used to hold the physical - * memory configuration of the machine. This is filled in - * prom_meminit() and is later used by mem_init() to set up - * mem_map[]. We statically allocate SPARC_PHYS_BANKS+1 of - * these structs, this is arbitrary. The entry after the - * last valid one has num_bytes==0. - */ -struct sparc_phys_banks { - unsigned long base_addr; - unsigned long num_bytes; -}; - -#define SPARC_PHYS_BANKS 32 - -extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1]; - -/* Cache alias structure. Entry is valid if context != -1. */ -struct cache_palias { - unsigned long vaddr; - int context; -}; - -/* passing structs on the Sparc slow us down tremendously... */ - -/* #define STRICT_MM_TYPECHECKS */ - -#ifdef STRICT_MM_TYPECHECKS -/* - * These are used to make use of C type-checking.. - */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long iopte; } iopte_t; -typedef struct { unsigned long pmdv[16]; } pmd_t; -typedef struct { unsigned long pgd; } pgd_t; -typedef struct { unsigned long ctxd; } ctxd_t; -typedef struct { unsigned long pgprot; } pgprot_t; -typedef struct { unsigned long iopgprot; } iopgprot_t; - -#define pte_val(x) ((x).pte) -#define iopte_val(x) ((x).iopte) -#define pmd_val(x) ((x).pmdv[0]) -#define pgd_val(x) ((x).pgd) -#define ctxd_val(x) ((x).ctxd) -#define pgprot_val(x) ((x).pgprot) -#define iopgprot_val(x) ((x).iopgprot) - -#define __pte(x) ((pte_t) { (x) } ) -#define __iopte(x) ((iopte_t) { (x) } ) -/* #define __pmd(x) ((pmd_t) { (x) } ) */ /* XXX procedure with loop */ -#define __pgd(x) ((pgd_t) { (x) } ) -#define __ctxd(x) ((ctxd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) -#define __iopgprot(x) ((iopgprot_t) { (x) } ) - -#else -/* - * .. while these make it easier on the compiler - */ -typedef unsigned long pte_t; -typedef unsigned long iopte_t; -typedef struct { unsigned long pmdv[16]; } pmd_t; -typedef unsigned long pgd_t; -typedef unsigned long ctxd_t; -typedef unsigned long pgprot_t; -typedef unsigned long iopgprot_t; - -#define pte_val(x) (x) -#define iopte_val(x) (x) -#define pmd_val(x) ((x).pmdv[0]) -#define pgd_val(x) (x) -#define ctxd_val(x) (x) -#define pgprot_val(x) (x) -#define iopgprot_val(x) (x) - -#define __pte(x) (x) -#define __iopte(x) (x) -/* #define __pmd(x) (x) */ /* XXX later */ -#define __pgd(x) (x) -#define __ctxd(x) (x) -#define __pgprot(x) (x) -#define __iopgprot(x) (x) - -#endif - -typedef struct page *pgtable_t; - -extern unsigned long sparc_unmapped_base; - -BTFIXUPDEF_SETHI(sparc_unmapped_base) - -#define TASK_UNMAPPED_BASE BTFIXUP_SETHI(sparc_unmapped_base) - -#else /* !(__ASSEMBLY__) */ - -#define __pgprot(x) (x) - -#endif /* !(__ASSEMBLY__) */ - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - -#define PAGE_OFFSET 0xf0000000 -#ifndef __ASSEMBLY__ -extern unsigned long phys_base; -extern unsigned long pfn_base; #endif -#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET + phys_base) -#define __va(x) ((void *)((unsigned long) (x) - phys_base + PAGE_OFFSET)) - -#define virt_to_phys __pa -#define phys_to_virt __va - -#define ARCH_PFN_OFFSET (pfn_base) -#define virt_to_page(kaddr) (mem_map + ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT))) - -#define pfn_valid(pfn) (((pfn) >= (pfn_base)) && (((pfn)-(pfn_base)) < max_mapnr)) -#define virt_addr_valid(kaddr) ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT) < max_mapnr) - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include -#include - -#endif /* _SPARC_PAGE_H */ diff --git a/include/asm-sparc/page_32.h b/include/asm-sparc/page_32.h new file mode 100644 index 000000000000..14de518cc38f --- /dev/null +++ b/include/asm-sparc/page_32.h @@ -0,0 +1,163 @@ +/* + * page.h: Various defines and such for MMU operations on the Sparc for + * the Linux kernel. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SPARC_PAGE_H +#define _SPARC_PAGE_H + +#ifdef CONFIG_SUN4 +#define PAGE_SHIFT 13 +#else +#define PAGE_SHIFT 12 +#endif +#ifndef __ASSEMBLY__ +/* I have my suspicions... -DaveM */ +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#else +#define PAGE_SIZE (1 << PAGE_SHIFT) +#endif +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#include + +#ifndef __ASSEMBLY__ + +#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) +#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) +#define clear_user_page(addr, vaddr, page) \ + do { clear_page(addr); \ + sparc_flush_page_to_ram(page); \ + } while (0) +#define copy_user_page(to, from, vaddr, page) \ + do { copy_page(to, from); \ + sparc_flush_page_to_ram(page); \ + } while (0) + +/* The following structure is used to hold the physical + * memory configuration of the machine. This is filled in + * prom_meminit() and is later used by mem_init() to set up + * mem_map[]. We statically allocate SPARC_PHYS_BANKS+1 of + * these structs, this is arbitrary. The entry after the + * last valid one has num_bytes==0. + */ +struct sparc_phys_banks { + unsigned long base_addr; + unsigned long num_bytes; +}; + +#define SPARC_PHYS_BANKS 32 + +extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1]; + +/* Cache alias structure. Entry is valid if context != -1. */ +struct cache_palias { + unsigned long vaddr; + int context; +}; + +/* passing structs on the Sparc slow us down tremendously... */ + +/* #define STRICT_MM_TYPECHECKS */ + +#ifdef STRICT_MM_TYPECHECKS +/* + * These are used to make use of C type-checking.. + */ +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long iopte; } iopte_t; +typedef struct { unsigned long pmdv[16]; } pmd_t; +typedef struct { unsigned long pgd; } pgd_t; +typedef struct { unsigned long ctxd; } ctxd_t; +typedef struct { unsigned long pgprot; } pgprot_t; +typedef struct { unsigned long iopgprot; } iopgprot_t; + +#define pte_val(x) ((x).pte) +#define iopte_val(x) ((x).iopte) +#define pmd_val(x) ((x).pmdv[0]) +#define pgd_val(x) ((x).pgd) +#define ctxd_val(x) ((x).ctxd) +#define pgprot_val(x) ((x).pgprot) +#define iopgprot_val(x) ((x).iopgprot) + +#define __pte(x) ((pte_t) { (x) } ) +#define __iopte(x) ((iopte_t) { (x) } ) +/* #define __pmd(x) ((pmd_t) { (x) } ) */ /* XXX procedure with loop */ +#define __pgd(x) ((pgd_t) { (x) } ) +#define __ctxd(x) ((ctxd_t) { (x) } ) +#define __pgprot(x) ((pgprot_t) { (x) } ) +#define __iopgprot(x) ((iopgprot_t) { (x) } ) + +#else +/* + * .. while these make it easier on the compiler + */ +typedef unsigned long pte_t; +typedef unsigned long iopte_t; +typedef struct { unsigned long pmdv[16]; } pmd_t; +typedef unsigned long pgd_t; +typedef unsigned long ctxd_t; +typedef unsigned long pgprot_t; +typedef unsigned long iopgprot_t; + +#define pte_val(x) (x) +#define iopte_val(x) (x) +#define pmd_val(x) ((x).pmdv[0]) +#define pgd_val(x) (x) +#define ctxd_val(x) (x) +#define pgprot_val(x) (x) +#define iopgprot_val(x) (x) + +#define __pte(x) (x) +#define __iopte(x) (x) +/* #define __pmd(x) (x) */ /* XXX later */ +#define __pgd(x) (x) +#define __ctxd(x) (x) +#define __pgprot(x) (x) +#define __iopgprot(x) (x) + +#endif + +typedef struct page *pgtable_t; + +extern unsigned long sparc_unmapped_base; + +BTFIXUPDEF_SETHI(sparc_unmapped_base) + +#define TASK_UNMAPPED_BASE BTFIXUP_SETHI(sparc_unmapped_base) + +#else /* !(__ASSEMBLY__) */ + +#define __pgprot(x) (x) + +#endif /* !(__ASSEMBLY__) */ + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) + +#define PAGE_OFFSET 0xf0000000 +#ifndef __ASSEMBLY__ +extern unsigned long phys_base; +extern unsigned long pfn_base; +#endif +#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET + phys_base) +#define __va(x) ((void *)((unsigned long) (x) - phys_base + PAGE_OFFSET)) + +#define virt_to_phys __pa +#define phys_to_virt __va + +#define ARCH_PFN_OFFSET (pfn_base) +#define virt_to_page(kaddr) (mem_map + ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT))) + +#define pfn_valid(pfn) (((pfn) >= (pfn_base)) && (((pfn)-(pfn_base)) < max_mapnr)) +#define virt_addr_valid(kaddr) ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT) < max_mapnr) + +#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + +#include +#include + +#endif /* _SPARC_PAGE_H */ diff --git a/include/asm-sparc/page_64.h b/include/asm-sparc/page_64.h new file mode 100644 index 000000000000..93f0881b766e --- /dev/null +++ b/include/asm-sparc/page_64.h @@ -0,0 +1,142 @@ +#ifndef _SPARC64_PAGE_H +#define _SPARC64_PAGE_H + +#include + +#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB) +#define PAGE_SHIFT 13 +#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) +#define PAGE_SHIFT 16 +#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) +#define PAGE_SHIFT 19 +#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) +#define PAGE_SHIFT 22 +#else +#error No page size specified in kernel configuration +#endif + +#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +/* Flushing for D-cache alias handling is only needed if + * the page size is smaller than 16K. + */ +#if PAGE_SHIFT < 14 +#define DCACHE_ALIASING_POSSIBLE +#endif + +#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) +#define HPAGE_SHIFT 22 +#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) +#define HPAGE_SHIFT 19 +#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) +#define HPAGE_SHIFT 16 +#endif + +#ifdef CONFIG_HUGETLB_PAGE +#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) +#define HPAGE_MASK (~(HPAGE_SIZE - 1UL)) +#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) +#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA +#endif + +#ifndef __ASSEMBLY__ + +extern void _clear_page(void *page); +#define clear_page(X) _clear_page((void *)(X)) +struct page; +extern void clear_user_page(void *addr, unsigned long vaddr, struct page *page); +#define copy_page(X,Y) memcpy((void *)(X), (void *)(Y), PAGE_SIZE) +extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage); + +/* Unlike sparc32, sparc64's parameter passing API is more + * sane in that structures which as small enough are passed + * in registers instead of on the stack. Thus, setting + * STRICT_MM_TYPECHECKS does not generate worse code so + * let's enable it to get the type checking. + */ + +#define STRICT_MM_TYPECHECKS + +#ifdef STRICT_MM_TYPECHECKS +/* These are used to make use of C type-checking.. */ +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long iopte; } iopte_t; +typedef struct { unsigned int pmd; } pmd_t; +typedef struct { unsigned int pgd; } pgd_t; +typedef struct { unsigned long pgprot; } pgprot_t; + +#define pte_val(x) ((x).pte) +#define iopte_val(x) ((x).iopte) +#define pmd_val(x) ((x).pmd) +#define pgd_val(x) ((x).pgd) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) } ) +#define __iopte(x) ((iopte_t) { (x) } ) +#define __pmd(x) ((pmd_t) { (x) } ) +#define __pgd(x) ((pgd_t) { (x) } ) +#define __pgprot(x) ((pgprot_t) { (x) } ) + +#else +/* .. while these make it easier on the compiler */ +typedef unsigned long pte_t; +typedef unsigned long iopte_t; +typedef unsigned int pmd_t; +typedef unsigned int pgd_t; +typedef unsigned long pgprot_t; + +#define pte_val(x) (x) +#define iopte_val(x) (x) +#define pmd_val(x) (x) +#define pgd_val(x) (x) +#define pgprot_val(x) (x) + +#define __pte(x) (x) +#define __iopte(x) (x) +#define __pmd(x) (x) +#define __pgd(x) (x) +#define __pgprot(x) (x) + +#endif /* (STRICT_MM_TYPECHECKS) */ + +typedef struct page *pgtable_t; + +#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_32BIT) ? \ + (_AC(0x0000000070000000,UL)) : \ + (_AC(0xfffff80000000000,UL) + (1UL << 32UL))) + +#include + +#endif /* !(__ASSEMBLY__) */ + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) + +/* We used to stick this into a hard-coded global register (%g4) + * but that does not make sense anymore. + */ +#define PAGE_OFFSET _AC(0xFFFFF80000000000,UL) + +#ifndef __ASSEMBLY__ + +#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET) +#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) + +#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) + +#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr)>>PAGE_SHIFT) + +#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) + +#define virt_to_phys __pa +#define phys_to_virt __va + +#endif /* !(__ASSEMBLY__) */ + +#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + +#include + +#endif /* _SPARC64_PAGE_H */ diff --git a/include/asm-sparc/pci.h b/include/asm-sparc/pci.h index b93b6c79e08f..b807d52a4809 100644 --- a/include/asm-sparc/pci.h +++ b/include/asm-sparc/pci.h @@ -1,170 +1,8 @@ -#ifndef __SPARC_PCI_H -#define __SPARC_PCI_H - -#ifdef __KERNEL__ - -/* Can be used to override the logic in pci_scan_bus for skipping - * already-configured bus numbers - to be used for buggy BIOSes - * or architectures with incomplete PCI setup by the loader. - */ -#define pcibios_assign_all_busses() 0 -#define pcibios_scan_all_fns(a, b) 0 - -#define PCIBIOS_MIN_IO 0UL -#define PCIBIOS_MIN_MEM 0UL - -#define PCI_IRQ_NONE 0xffffffff - -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - -static inline void pcibios_penalize_isa_irq(int irq, int active) -{ - /* We don't do dynamic PCI IRQ allocation */ -} - -/* Dynamic DMA mapping stuff. - */ -#define PCI_DMA_BUS_IS_PHYS (0) - -#include - -struct pci_dev; - -/* Allocate and map kernel buffer using consistent mode DMA for a device. - * hwdev should be valid struct pci_dev pointer for PCI devices. - */ -extern void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, dma_addr_t *dma_handle); - -/* Free and unmap a consistent DMA buffer. - * cpu_addr is what was returned from pci_alloc_consistent, - * size must be the same as what as passed into pci_alloc_consistent, - * and likewise dma_addr must be the same as what *dma_addrp was set to. - * - * References to the memory and mappings assosciated with cpu_addr/dma_addr - * past this call are illegal. - */ -extern void pci_free_consistent(struct pci_dev *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle); - -/* Map a single buffer of the indicated size for DMA in streaming mode. - * The 32-bit bus address to use is returned. - * - * Once the device is given the dma address, the device owns this memory - * until either pci_unmap_single or pci_dma_sync_single_for_cpu is performed. - */ -extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction); - -/* Unmap a single streaming mode DMA translation. The dma_addr and size - * must match what was provided for in a previous pci_map_single call. All - * other usages are undefined. - * - * After this call, reads by the cpu to the buffer are guaranteed to see - * whatever the device wrote there. - */ -extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, size_t size, int direction); - -/* pci_unmap_{single,page} is not a nop, thus... */ -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ - dma_addr_t ADDR_NAME; -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ - __u32 LEN_NAME; -#define pci_unmap_addr(PTR, ADDR_NAME) \ - ((PTR)->ADDR_NAME) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ - (((PTR)->ADDR_NAME) = (VAL)) -#define pci_unmap_len(PTR, LEN_NAME) \ - ((PTR)->LEN_NAME) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ - (((PTR)->LEN_NAME) = (VAL)) - -/* - * Same as above, only with pages instead of mapped addresses. - */ -extern dma_addr_t pci_map_page(struct pci_dev *hwdev, struct page *page, - unsigned long offset, size_t size, int direction); -extern void pci_unmap_page(struct pci_dev *hwdev, - dma_addr_t dma_address, size_t size, int direction); - -/* Map a set of buffers described by scatterlist in streaming - * mode for DMA. This is the scather-gather version of the - * above pci_map_single interface. Here the scatter gather list - * elements are each tagged with the appropriate dma address - * and length. They are obtained via sg_dma_{address,length}(SG). - * - * NOTE: An implementation may be able to use a smaller number of - * DMA address/length pairs than there are SG table elements. - * (for example via virtual mapping capabilities) - * The routine returns the number of addr/length pairs actually - * used, at most nents. - * - * Device ownership issues as mentioned above for pci_map_single are - * the same here. - */ -extern int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents, int direction); - -/* Unmap a set of streaming mode DMA translations. - * Again, cpu read rules concerning calls here are the same as for - * pci_unmap_single() above. - */ -extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nhwents, int direction); - -/* Make physical memory consistent for a single - * streaming mode DMA translation after a transfer. - * - * If you perform a pci_map_single() but wish to interrogate the - * buffer using the cpu, yet do not wish to teardown the PCI dma - * mapping, you must call this function before doing so. At the - * next point you give the PCI dma address back to the card, you - * must first perform a pci_dma_sync_for_device, and then the device - * again owns the buffer. - */ -extern void pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction); -extern void pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction); - -/* Make physical memory consistent for a set of streaming - * mode DMA translations after a transfer. - * - * The same as pci_dma_sync_single_* but for a scatter-gather list, - * same rules and usage. - */ -extern void pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction); -extern void pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction); - -/* Return whether the given PCI device DMA address mask can - * be supported properly. For example, if your device can - * only drive the low 24-bits during PCI bus mastering, then - * you would pass 0x00ffffff as the mask to this function. - */ -static inline int pci_dma_supported(struct pci_dev *hwdev, u64 mask) -{ - return 1; -} - -#ifdef CONFIG_PCI -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - *strat = PCI_DMA_BURST_INFINITY; - *strategy_parameter = ~0UL; -} +#ifndef ___ASM_SPARC_PCI_H +#define ___ASM_SPARC_PCI_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -#define PCI_DMA_ERROR_CODE (~(dma_addr_t)0x0) - -static inline int pci_dma_mapping_error(dma_addr_t dma_addr) -{ - return (dma_addr == PCI_DMA_ERROR_CODE); -} - -struct device_node; -extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); - -#endif /* __KERNEL__ */ - -/* generic pci stuff */ -#include - -#endif /* __SPARC_PCI_H */ diff --git a/include/asm-sparc/pci_32.h b/include/asm-sparc/pci_32.h new file mode 100644 index 000000000000..b93b6c79e08f --- /dev/null +++ b/include/asm-sparc/pci_32.h @@ -0,0 +1,170 @@ +#ifndef __SPARC_PCI_H +#define __SPARC_PCI_H + +#ifdef __KERNEL__ + +/* Can be used to override the logic in pci_scan_bus for skipping + * already-configured bus numbers - to be used for buggy BIOSes + * or architectures with incomplete PCI setup by the loader. + */ +#define pcibios_assign_all_busses() 0 +#define pcibios_scan_all_fns(a, b) 0 + +#define PCIBIOS_MIN_IO 0UL +#define PCIBIOS_MIN_MEM 0UL + +#define PCI_IRQ_NONE 0xffffffff + +static inline void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + +static inline void pcibios_penalize_isa_irq(int irq, int active) +{ + /* We don't do dynamic PCI IRQ allocation */ +} + +/* Dynamic DMA mapping stuff. + */ +#define PCI_DMA_BUS_IS_PHYS (0) + +#include + +struct pci_dev; + +/* Allocate and map kernel buffer using consistent mode DMA for a device. + * hwdev should be valid struct pci_dev pointer for PCI devices. + */ +extern void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, dma_addr_t *dma_handle); + +/* Free and unmap a consistent DMA buffer. + * cpu_addr is what was returned from pci_alloc_consistent, + * size must be the same as what as passed into pci_alloc_consistent, + * and likewise dma_addr must be the same as what *dma_addrp was set to. + * + * References to the memory and mappings assosciated with cpu_addr/dma_addr + * past this call are illegal. + */ +extern void pci_free_consistent(struct pci_dev *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle); + +/* Map a single buffer of the indicated size for DMA in streaming mode. + * The 32-bit bus address to use is returned. + * + * Once the device is given the dma address, the device owns this memory + * until either pci_unmap_single or pci_dma_sync_single_for_cpu is performed. + */ +extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction); + +/* Unmap a single streaming mode DMA translation. The dma_addr and size + * must match what was provided for in a previous pci_map_single call. All + * other usages are undefined. + * + * After this call, reads by the cpu to the buffer are guaranteed to see + * whatever the device wrote there. + */ +extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, size_t size, int direction); + +/* pci_unmap_{single,page} is not a nop, thus... */ +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ + dma_addr_t ADDR_NAME; +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ + __u32 LEN_NAME; +#define pci_unmap_addr(PTR, ADDR_NAME) \ + ((PTR)->ADDR_NAME) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ + (((PTR)->ADDR_NAME) = (VAL)) +#define pci_unmap_len(PTR, LEN_NAME) \ + ((PTR)->LEN_NAME) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ + (((PTR)->LEN_NAME) = (VAL)) + +/* + * Same as above, only with pages instead of mapped addresses. + */ +extern dma_addr_t pci_map_page(struct pci_dev *hwdev, struct page *page, + unsigned long offset, size_t size, int direction); +extern void pci_unmap_page(struct pci_dev *hwdev, + dma_addr_t dma_address, size_t size, int direction); + +/* Map a set of buffers described by scatterlist in streaming + * mode for DMA. This is the scather-gather version of the + * above pci_map_single interface. Here the scatter gather list + * elements are each tagged with the appropriate dma address + * and length. They are obtained via sg_dma_{address,length}(SG). + * + * NOTE: An implementation may be able to use a smaller number of + * DMA address/length pairs than there are SG table elements. + * (for example via virtual mapping capabilities) + * The routine returns the number of addr/length pairs actually + * used, at most nents. + * + * Device ownership issues as mentioned above for pci_map_single are + * the same here. + */ +extern int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents, int direction); + +/* Unmap a set of streaming mode DMA translations. + * Again, cpu read rules concerning calls here are the same as for + * pci_unmap_single() above. + */ +extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nhwents, int direction); + +/* Make physical memory consistent for a single + * streaming mode DMA translation after a transfer. + * + * If you perform a pci_map_single() but wish to interrogate the + * buffer using the cpu, yet do not wish to teardown the PCI dma + * mapping, you must call this function before doing so. At the + * next point you give the PCI dma address back to the card, you + * must first perform a pci_dma_sync_for_device, and then the device + * again owns the buffer. + */ +extern void pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction); +extern void pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction); + +/* Make physical memory consistent for a set of streaming + * mode DMA translations after a transfer. + * + * The same as pci_dma_sync_single_* but for a scatter-gather list, + * same rules and usage. + */ +extern void pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction); +extern void pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction); + +/* Return whether the given PCI device DMA address mask can + * be supported properly. For example, if your device can + * only drive the low 24-bits during PCI bus mastering, then + * you would pass 0x00ffffff as the mask to this function. + */ +static inline int pci_dma_supported(struct pci_dev *hwdev, u64 mask) +{ + return 1; +} + +#ifdef CONFIG_PCI +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + *strat = PCI_DMA_BURST_INFINITY; + *strategy_parameter = ~0UL; +} +#endif + +#define PCI_DMA_ERROR_CODE (~(dma_addr_t)0x0) + +static inline int pci_dma_mapping_error(dma_addr_t dma_addr) +{ + return (dma_addr == PCI_DMA_ERROR_CODE); +} + +struct device_node; +extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); + +#endif /* __KERNEL__ */ + +/* generic pci stuff */ +#include + +#endif /* __SPARC_PCI_H */ diff --git a/include/asm-sparc/pci_64.h b/include/asm-sparc/pci_64.h new file mode 100644 index 000000000000..f59f2571295b --- /dev/null +++ b/include/asm-sparc/pci_64.h @@ -0,0 +1,209 @@ +#ifndef __SPARC64_PCI_H +#define __SPARC64_PCI_H + +#ifdef __KERNEL__ + +#include + +/* Can be used to override the logic in pci_scan_bus for skipping + * already-configured bus numbers - to be used for buggy BIOSes + * or architectures with incomplete PCI setup by the loader. + */ +#define pcibios_assign_all_busses() 0 +#define pcibios_scan_all_fns(a, b) 0 + +#define PCIBIOS_MIN_IO 0UL +#define PCIBIOS_MIN_MEM 0UL + +#define PCI_IRQ_NONE 0xffffffff + +#define PCI_CACHE_LINE_BYTES 64 + +static inline void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + +static inline void pcibios_penalize_isa_irq(int irq, int active) +{ + /* We don't do dynamic PCI IRQ allocation */ +} + +/* The PCI address space does not equal the physical memory + * address space. The networking and block device layers use + * this boolean for bounce buffer decisions. + */ +#define PCI_DMA_BUS_IS_PHYS (0) + +static inline void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, + dma_addr_t *dma_handle) +{ + return dma_alloc_coherent(&pdev->dev, size, dma_handle, GFP_ATOMIC); +} + +static inline void pci_free_consistent(struct pci_dev *pdev, size_t size, + void *vaddr, dma_addr_t dma_handle) +{ + return dma_free_coherent(&pdev->dev, size, vaddr, dma_handle); +} + +static inline dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, + size_t size, int direction) +{ + return dma_map_single(&pdev->dev, ptr, size, + (enum dma_data_direction) direction); +} + +static inline void pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, + size_t size, int direction) +{ + dma_unmap_single(&pdev->dev, dma_addr, size, + (enum dma_data_direction) direction); +} + +#define pci_map_page(dev, page, off, size, dir) \ + pci_map_single(dev, (page_address(page) + (off)), size, dir) +#define pci_unmap_page(dev,addr,sz,dir) \ + pci_unmap_single(dev,addr,sz,dir) + +/* pci_unmap_{single,page} is not a nop, thus... */ +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ + dma_addr_t ADDR_NAME; +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ + __u32 LEN_NAME; +#define pci_unmap_addr(PTR, ADDR_NAME) \ + ((PTR)->ADDR_NAME) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ + (((PTR)->ADDR_NAME) = (VAL)) +#define pci_unmap_len(PTR, LEN_NAME) \ + ((PTR)->LEN_NAME) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ + (((PTR)->LEN_NAME) = (VAL)) + +static inline int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, + int nents, int direction) +{ + return dma_map_sg(&pdev->dev, sg, nents, + (enum dma_data_direction) direction); +} + +static inline void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, + int nents, int direction) +{ + dma_unmap_sg(&pdev->dev, sg, nents, + (enum dma_data_direction) direction); +} + +static inline void pci_dma_sync_single_for_cpu(struct pci_dev *pdev, + dma_addr_t dma_handle, + size_t size, int direction) +{ + dma_sync_single_for_cpu(&pdev->dev, dma_handle, size, + (enum dma_data_direction) direction); +} + +static inline void pci_dma_sync_single_for_device(struct pci_dev *pdev, + dma_addr_t dma_handle, + size_t size, int direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + +static inline void pci_dma_sync_sg_for_cpu(struct pci_dev *pdev, + struct scatterlist *sg, + int nents, int direction) +{ + dma_sync_sg_for_cpu(&pdev->dev, sg, nents, + (enum dma_data_direction) direction); +} + +static inline void pci_dma_sync_sg_for_device(struct pci_dev *pdev, + struct scatterlist *sg, + int nelems, int direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + +/* Return whether the given PCI device DMA address mask can + * be supported properly. For example, if your device can + * only drive the low 24-bits during PCI bus mastering, then + * you would pass 0x00ffffff as the mask to this function. + */ +extern int pci_dma_supported(struct pci_dev *hwdev, u64 mask); + +/* PCI IOMMU mapping bypass support. */ + +/* PCI 64-bit addressing works for all slots on all controller + * types on sparc64. However, it requires that the device + * can drive enough of the 64 bits. + */ +#define PCI64_REQUIRED_MASK (~(dma64_addr_t)0) +#define PCI64_ADDR_BASE 0xfffc000000000000UL + +static inline int pci_dma_mapping_error(dma_addr_t dma_addr) +{ + return dma_mapping_error(dma_addr); +} + +#ifdef CONFIG_PCI +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + if (byte == 0) + cacheline_size = 1024; + else + cacheline_size = (int) byte * 4; + + *strat = PCI_DMA_BURST_BOUNDARY; + *strategy_parameter = cacheline_size; +} +#endif + +/* Return the index of the PCI controller for device PDEV. */ + +extern int pci_domain_nr(struct pci_bus *bus); +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return 1; +} + +/* Platform support for /proc/bus/pci/X/Y mmap()s. */ + +#define HAVE_PCI_MMAP +#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA +#define get_pci_unmapped_area get_fb_unmapped_area + +extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, + enum pci_mmap_state mmap_state, + int write_combine); + +extern void +pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, + struct resource *res); + +extern void +pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, + struct pci_bus_region *region); + +extern struct resource *pcibios_select_root(struct pci_dev *, struct resource *); + +static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) +{ + return PCI_IRQ_NONE; +} + +struct device_node; +extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); + +#define HAVE_ARCH_PCI_RESOURCE_TO_USER +extern void pci_resource_to_user(const struct pci_dev *dev, int bar, + const struct resource *rsrc, + resource_size_t *start, resource_size_t *end); +#endif /* __KERNEL__ */ + +#endif /* __SPARC64_PCI_H */ diff --git a/include/asm-sparc/percpu.h b/include/asm-sparc/percpu.h index 06066a7aaec3..d98ed6cf2e36 100644 --- a/include/asm-sparc/percpu.h +++ b/include/asm-sparc/percpu.h @@ -1,6 +1,8 @@ -#ifndef __ARCH_SPARC_PERCPU__ -#define __ARCH_SPARC_PERCPU__ - -#include - -#endif /* __ARCH_SPARC_PERCPU__ */ +#ifndef ___ASM_SPARC_PERCPU_H +#define ___ASM_SPARC_PERCPU_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/percpu_32.h b/include/asm-sparc/percpu_32.h new file mode 100644 index 000000000000..06066a7aaec3 --- /dev/null +++ b/include/asm-sparc/percpu_32.h @@ -0,0 +1,6 @@ +#ifndef __ARCH_SPARC_PERCPU__ +#define __ARCH_SPARC_PERCPU__ + +#include + +#endif /* __ARCH_SPARC_PERCPU__ */ diff --git a/include/asm-sparc/percpu_64.h b/include/asm-sparc/percpu_64.h new file mode 100644 index 000000000000..bee64593023e --- /dev/null +++ b/include/asm-sparc/percpu_64.h @@ -0,0 +1,28 @@ +#ifndef __ARCH_SPARC64_PERCPU__ +#define __ARCH_SPARC64_PERCPU__ + +#include + +register unsigned long __local_per_cpu_offset asm("g5"); + +#ifdef CONFIG_SMP + +extern void real_setup_per_cpu_areas(void); + +extern unsigned long __per_cpu_base; +extern unsigned long __per_cpu_shift; +#define __per_cpu_offset(__cpu) \ + (__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift)) +#define per_cpu_offset(x) (__per_cpu_offset(x)) + +#define __my_cpu_offset __local_per_cpu_offset + +#else /* ! SMP */ + +#define real_setup_per_cpu_areas() do { } while (0) + +#endif /* SMP */ + +#include + +#endif /* __ARCH_SPARC64_PERCPU__ */ diff --git a/include/asm-sparc/pgalloc.h b/include/asm-sparc/pgalloc.h index 681582d26969..7fa02b53d392 100644 --- a/include/asm-sparc/pgalloc.h +++ b/include/asm-sparc/pgalloc.h @@ -1,68 +1,8 @@ -#ifndef _SPARC_PGALLOC_H -#define _SPARC_PGALLOC_H - -#include -#include - -#include -#include - -struct page; - -extern struct pgtable_cache_struct { - unsigned long *pgd_cache; - unsigned long *pte_cache; - unsigned long pgtable_cache_sz; - unsigned long pgd_cache_sz; -} pgt_quicklists; -#define pgd_quicklist (pgt_quicklists.pgd_cache) -#define pmd_quicklist ((unsigned long *)0) -#define pte_quicklist (pgt_quicklists.pte_cache) -#define pgtable_cache_size (pgt_quicklists.pgtable_cache_sz) -#define pgd_cache_size (pgt_quicklists.pgd_cache_sz) - -extern void check_pgt_cache(void); -BTFIXUPDEF_CALL(void, do_check_pgt_cache, int, int) -#define do_check_pgt_cache(low,high) BTFIXUP_CALL(do_check_pgt_cache)(low,high) - -BTFIXUPDEF_CALL(pgd_t *, get_pgd_fast, void) -#define get_pgd_fast() BTFIXUP_CALL(get_pgd_fast)() - -BTFIXUPDEF_CALL(void, free_pgd_fast, pgd_t *) -#define free_pgd_fast(pgd) BTFIXUP_CALL(free_pgd_fast)(pgd) - -#define pgd_free(mm, pgd) free_pgd_fast(pgd) -#define pgd_alloc(mm) get_pgd_fast() - -BTFIXUPDEF_CALL(void, pgd_set, pgd_t *, pmd_t *) -#define pgd_set(pgdp,pmdp) BTFIXUP_CALL(pgd_set)(pgdp,pmdp) -#define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD) - -BTFIXUPDEF_CALL(pmd_t *, pmd_alloc_one, struct mm_struct *, unsigned long) -#define pmd_alloc_one(mm, address) BTFIXUP_CALL(pmd_alloc_one)(mm, address) - -BTFIXUPDEF_CALL(void, free_pmd_fast, pmd_t *) -#define free_pmd_fast(pmd) BTFIXUP_CALL(free_pmd_fast)(pmd) - -#define pmd_free(mm, pmd) free_pmd_fast(pmd) -#define __pmd_free_tlb(tlb, pmd) pmd_free((tlb)->mm, pmd) - -BTFIXUPDEF_CALL(void, pmd_populate, pmd_t *, struct page *) -#define pmd_populate(MM, PMD, PTE) BTFIXUP_CALL(pmd_populate)(PMD, PTE) -#define pmd_pgtable(pmd) pmd_page(pmd) -BTFIXUPDEF_CALL(void, pmd_set, pmd_t *, pte_t *) -#define pmd_populate_kernel(MM, PMD, PTE) BTFIXUP_CALL(pmd_set)(PMD, PTE) - -BTFIXUPDEF_CALL(pgtable_t , pte_alloc_one, struct mm_struct *, unsigned long) -#define pte_alloc_one(mm, address) BTFIXUP_CALL(pte_alloc_one)(mm, address) -BTFIXUPDEF_CALL(pte_t *, pte_alloc_one_kernel, struct mm_struct *, unsigned long) -#define pte_alloc_one_kernel(mm, addr) BTFIXUP_CALL(pte_alloc_one_kernel)(mm, addr) - -BTFIXUPDEF_CALL(void, free_pte_fast, pte_t *) -#define pte_free_kernel(mm, pte) BTFIXUP_CALL(free_pte_fast)(pte) - -BTFIXUPDEF_CALL(void, pte_free, pgtable_t ) -#define pte_free(mm, pte) BTFIXUP_CALL(pte_free)(pte) -#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, pte) - -#endif /* _SPARC_PGALLOC_H */ +#ifndef ___ASM_SPARC_PGALLOC_H +#define ___ASM_SPARC_PGALLOC_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/pgalloc_32.h b/include/asm-sparc/pgalloc_32.h new file mode 100644 index 000000000000..681582d26969 --- /dev/null +++ b/include/asm-sparc/pgalloc_32.h @@ -0,0 +1,68 @@ +#ifndef _SPARC_PGALLOC_H +#define _SPARC_PGALLOC_H + +#include +#include + +#include +#include + +struct page; + +extern struct pgtable_cache_struct { + unsigned long *pgd_cache; + unsigned long *pte_cache; + unsigned long pgtable_cache_sz; + unsigned long pgd_cache_sz; +} pgt_quicklists; +#define pgd_quicklist (pgt_quicklists.pgd_cache) +#define pmd_quicklist ((unsigned long *)0) +#define pte_quicklist (pgt_quicklists.pte_cache) +#define pgtable_cache_size (pgt_quicklists.pgtable_cache_sz) +#define pgd_cache_size (pgt_quicklists.pgd_cache_sz) + +extern void check_pgt_cache(void); +BTFIXUPDEF_CALL(void, do_check_pgt_cache, int, int) +#define do_check_pgt_cache(low,high) BTFIXUP_CALL(do_check_pgt_cache)(low,high) + +BTFIXUPDEF_CALL(pgd_t *, get_pgd_fast, void) +#define get_pgd_fast() BTFIXUP_CALL(get_pgd_fast)() + +BTFIXUPDEF_CALL(void, free_pgd_fast, pgd_t *) +#define free_pgd_fast(pgd) BTFIXUP_CALL(free_pgd_fast)(pgd) + +#define pgd_free(mm, pgd) free_pgd_fast(pgd) +#define pgd_alloc(mm) get_pgd_fast() + +BTFIXUPDEF_CALL(void, pgd_set, pgd_t *, pmd_t *) +#define pgd_set(pgdp,pmdp) BTFIXUP_CALL(pgd_set)(pgdp,pmdp) +#define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD) + +BTFIXUPDEF_CALL(pmd_t *, pmd_alloc_one, struct mm_struct *, unsigned long) +#define pmd_alloc_one(mm, address) BTFIXUP_CALL(pmd_alloc_one)(mm, address) + +BTFIXUPDEF_CALL(void, free_pmd_fast, pmd_t *) +#define free_pmd_fast(pmd) BTFIXUP_CALL(free_pmd_fast)(pmd) + +#define pmd_free(mm, pmd) free_pmd_fast(pmd) +#define __pmd_free_tlb(tlb, pmd) pmd_free((tlb)->mm, pmd) + +BTFIXUPDEF_CALL(void, pmd_populate, pmd_t *, struct page *) +#define pmd_populate(MM, PMD, PTE) BTFIXUP_CALL(pmd_populate)(PMD, PTE) +#define pmd_pgtable(pmd) pmd_page(pmd) +BTFIXUPDEF_CALL(void, pmd_set, pmd_t *, pte_t *) +#define pmd_populate_kernel(MM, PMD, PTE) BTFIXUP_CALL(pmd_set)(PMD, PTE) + +BTFIXUPDEF_CALL(pgtable_t , pte_alloc_one, struct mm_struct *, unsigned long) +#define pte_alloc_one(mm, address) BTFIXUP_CALL(pte_alloc_one)(mm, address) +BTFIXUPDEF_CALL(pte_t *, pte_alloc_one_kernel, struct mm_struct *, unsigned long) +#define pte_alloc_one_kernel(mm, addr) BTFIXUP_CALL(pte_alloc_one_kernel)(mm, addr) + +BTFIXUPDEF_CALL(void, free_pte_fast, pte_t *) +#define pte_free_kernel(mm, pte) BTFIXUP_CALL(free_pte_fast)(pte) + +BTFIXUPDEF_CALL(void, pte_free, pgtable_t ) +#define pte_free(mm, pte) BTFIXUP_CALL(pte_free)(pte) +#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, pte) + +#endif /* _SPARC_PGALLOC_H */ diff --git a/include/asm-sparc/pgalloc_64.h b/include/asm-sparc/pgalloc_64.h new file mode 100644 index 000000000000..5bdfa2c6e400 --- /dev/null +++ b/include/asm-sparc/pgalloc_64.h @@ -0,0 +1,81 @@ +#ifndef _SPARC64_PGALLOC_H +#define _SPARC64_PGALLOC_H + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +/* Page table allocation/freeing. */ + +static inline pgd_t *pgd_alloc(struct mm_struct *mm) +{ + return quicklist_alloc(0, GFP_KERNEL, NULL); +} + +static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) +{ + quicklist_free(0, NULL, pgd); +} + +#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) + +static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) +{ + return quicklist_alloc(0, GFP_KERNEL, NULL); +} + +static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) +{ + quicklist_free(0, NULL, pmd); +} + +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, + unsigned long address) +{ + return quicklist_alloc(0, GFP_KERNEL, NULL); +} + +static inline pgtable_t pte_alloc_one(struct mm_struct *mm, + unsigned long address) +{ + struct page *page; + void *pg; + + pg = quicklist_alloc(0, GFP_KERNEL, NULL); + if (!pg) + return NULL; + page = virt_to_page(pg); + pgtable_page_ctor(page); + return page; +} + +static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) +{ + quicklist_free(0, NULL, pte); +} + +static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) +{ + pgtable_page_dtor(ptepage); + quicklist_free_page(0, NULL, ptepage); +} + + +#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) +#define pmd_populate(MM,PMD,PTE_PAGE) \ + pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE)) +#define pmd_pgtable(pmd) pmd_page(pmd) + +static inline void check_pgt_cache(void) +{ + quicklist_trim(0, NULL, 25, 16); +} + +#endif /* _SPARC64_PGALLOC_H */ diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h index b63ac6b4119f..63cdef53bc52 100644 --- a/include/asm-sparc/pgtable.h +++ b/include/asm-sparc/pgtable.h @@ -1,480 +1,8 @@ -#ifndef _SPARC_PGTABLE_H -#define _SPARC_PGTABLE_H - -/* asm-sparc/pgtable.h: Defines and functions used to work - * with Sparc page tables. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#ifndef __ASSEMBLY__ -#include - -#include -#include -#include -#ifdef CONFIG_SUN4 -#include +#ifndef ___ASM_SPARC_PGTABLE_H +#define ___ASM_SPARC_PGTABLE_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#include +#include #endif -#include -#include -#include -#include -#include - - -struct vm_area_struct; -struct page; - -extern void load_mmu(void); -extern unsigned long calc_highpages(void); - -BTFIXUPDEF_SIMM13(pgdir_shift) -BTFIXUPDEF_SETHI(pgdir_size) -BTFIXUPDEF_SETHI(pgdir_mask) - -BTFIXUPDEF_SIMM13(ptrs_per_pmd) -BTFIXUPDEF_SIMM13(ptrs_per_pgd) -BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) - -#define pte_ERROR(e) __builtin_trap() -#define pmd_ERROR(e) __builtin_trap() -#define pgd_ERROR(e) __builtin_trap() - -BTFIXUPDEF_INT(page_none) -BTFIXUPDEF_INT(page_copy) -BTFIXUPDEF_INT(page_readonly) -BTFIXUPDEF_INT(page_kernel) - -#define PMD_SHIFT SUN4C_PMD_SHIFT -#define PMD_SIZE (1UL << PMD_SHIFT) -#define PMD_MASK (~(PMD_SIZE-1)) -#define PMD_ALIGN(__addr) (((__addr) + ~PMD_MASK) & PMD_MASK) -#define PGDIR_SHIFT BTFIXUP_SIMM13(pgdir_shift) -#define PGDIR_SIZE BTFIXUP_SETHI(pgdir_size) -#define PGDIR_MASK BTFIXUP_SETHI(pgdir_mask) -#define PTRS_PER_PTE 1024 -#define PTRS_PER_PMD BTFIXUP_SIMM13(ptrs_per_pmd) -#define PTRS_PER_PGD BTFIXUP_SIMM13(ptrs_per_pgd) -#define USER_PTRS_PER_PGD BTFIXUP_SIMM13(user_ptrs_per_pgd) -#define FIRST_USER_ADDRESS 0 -#define PTE_SIZE (PTRS_PER_PTE*4) - -#define PAGE_NONE __pgprot(BTFIXUP_INT(page_none)) -extern pgprot_t PAGE_SHARED; -#define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) -#define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) - -extern unsigned long page_kernel; - -#ifdef MODULE -#define PAGE_KERNEL page_kernel -#else -#define PAGE_KERNEL __pgprot(BTFIXUP_INT(page_kernel)) #endif - -/* Top-level page directory */ -extern pgd_t swapper_pg_dir[1024]; - -extern void paging_init(void); - -/* Page table for 0-4MB for everybody, on the Sparc this - * holds the same as on the i386. - */ -extern pte_t pg0[1024]; -extern pte_t pg1[1024]; -extern pte_t pg2[1024]; -extern pte_t pg3[1024]; - -extern unsigned long ptr_in_current_pgd; - -/* Here is a trick, since mmap.c need the initializer elements for - * protection_map[] to be constant at compile time, I set the following - * to all zeros. I set it to the real values after I link in the - * appropriate MMU page table routines at boot time. - */ -#define __P000 __pgprot(0) -#define __P001 __pgprot(0) -#define __P010 __pgprot(0) -#define __P011 __pgprot(0) -#define __P100 __pgprot(0) -#define __P101 __pgprot(0) -#define __P110 __pgprot(0) -#define __P111 __pgprot(0) - -#define __S000 __pgprot(0) -#define __S001 __pgprot(0) -#define __S010 __pgprot(0) -#define __S011 __pgprot(0) -#define __S100 __pgprot(0) -#define __S101 __pgprot(0) -#define __S110 __pgprot(0) -#define __S111 __pgprot(0) - -extern int num_contexts; - -/* First physical page can be anywhere, the following is needed so that - * va-->pa and vice versa conversions work properly without performance - * hit for all __pa()/__va() operations. - */ -extern unsigned long phys_base; -extern unsigned long pfn_base; - -/* - * BAD_PAGETABLE is used when we need a bogus page-table, while - * BAD_PAGE is used for a bogus page. - * - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc.. - */ -extern pte_t * __bad_pagetable(void); -extern pte_t __bad_page(void); -extern unsigned long empty_zero_page; - -#define BAD_PAGETABLE __bad_pagetable() -#define BAD_PAGE __bad_page() -#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page)) - -/* - */ -BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t) -BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t) - -#define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd) -#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd) - -BTFIXUPDEF_SETHI(none_mask) -BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t) -BTFIXUPDEF_CALL(void, pte_clear, pte_t *) - -static inline int pte_none(pte_t pte) -{ - return !(pte_val(pte) & ~BTFIXUP_SETHI(none_mask)); -} - -#define pte_present(pte) BTFIXUP_CALL(pte_present)(pte) -#define pte_clear(mm,addr,pte) BTFIXUP_CALL(pte_clear)(pte) - -BTFIXUPDEF_CALL_CONST(int, pmd_bad, pmd_t) -BTFIXUPDEF_CALL_CONST(int, pmd_present, pmd_t) -BTFIXUPDEF_CALL(void, pmd_clear, pmd_t *) - -static inline int pmd_none(pmd_t pmd) -{ - return !(pmd_val(pmd) & ~BTFIXUP_SETHI(none_mask)); -} - -#define pmd_bad(pmd) BTFIXUP_CALL(pmd_bad)(pmd) -#define pmd_present(pmd) BTFIXUP_CALL(pmd_present)(pmd) -#define pmd_clear(pmd) BTFIXUP_CALL(pmd_clear)(pmd) - -BTFIXUPDEF_CALL_CONST(int, pgd_none, pgd_t) -BTFIXUPDEF_CALL_CONST(int, pgd_bad, pgd_t) -BTFIXUPDEF_CALL_CONST(int, pgd_present, pgd_t) -BTFIXUPDEF_CALL(void, pgd_clear, pgd_t *) - -#define pgd_none(pgd) BTFIXUP_CALL(pgd_none)(pgd) -#define pgd_bad(pgd) BTFIXUP_CALL(pgd_bad)(pgd) -#define pgd_present(pgd) BTFIXUP_CALL(pgd_present)(pgd) -#define pgd_clear(pgd) BTFIXUP_CALL(pgd_clear)(pgd) - -/* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -BTFIXUPDEF_HALF(pte_writei) -BTFIXUPDEF_HALF(pte_dirtyi) -BTFIXUPDEF_HALF(pte_youngi) - -static int pte_write(pte_t pte) __attribute_const__; -static inline int pte_write(pte_t pte) -{ - return pte_val(pte) & BTFIXUP_HALF(pte_writei); -} - -static int pte_dirty(pte_t pte) __attribute_const__; -static inline int pte_dirty(pte_t pte) -{ - return pte_val(pte) & BTFIXUP_HALF(pte_dirtyi); -} - -static int pte_young(pte_t pte) __attribute_const__; -static inline int pte_young(pte_t pte) -{ - return pte_val(pte) & BTFIXUP_HALF(pte_youngi); -} - -/* - * The following only work if pte_present() is not true. - */ -BTFIXUPDEF_HALF(pte_filei) - -static int pte_file(pte_t pte) __attribute_const__; -static inline int pte_file(pte_t pte) -{ - return pte_val(pte) & BTFIXUP_HALF(pte_filei); -} - -static inline int pte_special(pte_t pte) -{ - return 0; -} - -/* - */ -BTFIXUPDEF_HALF(pte_wrprotecti) -BTFIXUPDEF_HALF(pte_mkcleani) -BTFIXUPDEF_HALF(pte_mkoldi) - -static pte_t pte_wrprotect(pte_t pte) __attribute_const__; -static inline pte_t pte_wrprotect(pte_t pte) -{ - return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_wrprotecti)); -} - -static pte_t pte_mkclean(pte_t pte) __attribute_const__; -static inline pte_t pte_mkclean(pte_t pte) -{ - return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkcleani)); -} - -static pte_t pte_mkold(pte_t pte) __attribute_const__; -static inline pte_t pte_mkold(pte_t pte) -{ - return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkoldi)); -} - -BTFIXUPDEF_CALL_CONST(pte_t, pte_mkwrite, pte_t) -BTFIXUPDEF_CALL_CONST(pte_t, pte_mkdirty, pte_t) -BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t) - -#define pte_mkwrite(pte) BTFIXUP_CALL(pte_mkwrite)(pte) -#define pte_mkdirty(pte) BTFIXUP_CALL(pte_mkdirty)(pte) -#define pte_mkyoung(pte) BTFIXUP_CALL(pte_mkyoung)(pte) - -#define pte_mkspecial(pte) (pte) - -#define pfn_pte(pfn, prot) mk_pte(pfn_to_page(pfn), prot) - -BTFIXUPDEF_CALL(unsigned long, pte_pfn, pte_t) -#define pte_pfn(pte) BTFIXUP_CALL(pte_pfn)(pte) -#define pte_page(pte) pfn_to_page(pte_pfn(pte)) - -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ -BTFIXUPDEF_CALL_CONST(pte_t, mk_pte, struct page *, pgprot_t) - -BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_phys, unsigned long, pgprot_t) -BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_io, unsigned long, pgprot_t, int) -BTFIXUPDEF_CALL_CONST(pgprot_t, pgprot_noncached, pgprot_t) - -#define mk_pte(page,pgprot) BTFIXUP_CALL(mk_pte)(page,pgprot) -#define mk_pte_phys(page,pgprot) BTFIXUP_CALL(mk_pte_phys)(page,pgprot) -#define mk_pte_io(page,pgprot,space) BTFIXUP_CALL(mk_pte_io)(page,pgprot,space) - -#define pgprot_noncached(pgprot) BTFIXUP_CALL(pgprot_noncached)(pgprot) - -BTFIXUPDEF_INT(pte_modify_mask) - -static pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__; -static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) -{ - return __pte((pte_val(pte) & BTFIXUP_INT(pte_modify_mask)) | - pgprot_val(newprot)); -} - -#define pgd_index(address) ((address) >> PGDIR_SHIFT) - -/* to find an entry in a page-table-directory */ -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -/* to find an entry in a kernel page-table-directory */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - -/* Find an entry in the second-level page table.. */ -BTFIXUPDEF_CALL(pmd_t *, pmd_offset, pgd_t *, unsigned long) -#define pmd_offset(dir,addr) BTFIXUP_CALL(pmd_offset)(dir,addr) - -/* Find an entry in the third-level page table.. */ -BTFIXUPDEF_CALL(pte_t *, pte_offset_kernel, pmd_t *, unsigned long) -#define pte_offset_kernel(dir,addr) BTFIXUP_CALL(pte_offset_kernel)(dir,addr) - -/* - * This shortcut works on sun4m (and sun4d) because the nocache area is static, - * and sun4c is guaranteed to have no highmem anyway. - */ -#define pte_offset_map(d, a) pte_offset_kernel(d,a) -#define pte_offset_map_nested(d, a) pte_offset_kernel(d,a) - -#define pte_unmap(pte) do{}while(0) -#define pte_unmap_nested(pte) do{}while(0) - -/* Certain architectures need to do special things when pte's - * within a page table are directly modified. Thus, the following - * hook is made available. - */ - -BTFIXUPDEF_CALL(void, set_pte, pte_t *, pte_t) - -#define set_pte(ptep,pteval) BTFIXUP_CALL(set_pte)(ptep,pteval) -#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) - -struct seq_file; -BTFIXUPDEF_CALL(void, mmu_info, struct seq_file *) - -#define mmu_info(p) BTFIXUP_CALL(mmu_info)(p) - -/* Fault handler stuff... */ -#define FAULT_CODE_PROT 0x1 -#define FAULT_CODE_WRITE 0x2 -#define FAULT_CODE_USER 0x4 - -BTFIXUPDEF_CALL(void, update_mmu_cache, struct vm_area_struct *, unsigned long, pte_t) - -#define update_mmu_cache(vma,addr,pte) BTFIXUP_CALL(update_mmu_cache)(vma,addr,pte) - -BTFIXUPDEF_CALL(void, sparc_mapiorange, unsigned int, unsigned long, - unsigned long, unsigned int) -BTFIXUPDEF_CALL(void, sparc_unmapiorange, unsigned long, unsigned int) -#define sparc_mapiorange(bus,pa,va,len) BTFIXUP_CALL(sparc_mapiorange)(bus,pa,va,len) -#define sparc_unmapiorange(va,len) BTFIXUP_CALL(sparc_unmapiorange)(va,len) - -extern int invalid_segment; - -/* Encode and de-code a swap entry */ -BTFIXUPDEF_CALL(unsigned long, __swp_type, swp_entry_t) -BTFIXUPDEF_CALL(unsigned long, __swp_offset, swp_entry_t) -BTFIXUPDEF_CALL(swp_entry_t, __swp_entry, unsigned long, unsigned long) - -#define __swp_type(__x) BTFIXUP_CALL(__swp_type)(__x) -#define __swp_offset(__x) BTFIXUP_CALL(__swp_offset)(__x) -#define __swp_entry(__type,__off) BTFIXUP_CALL(__swp_entry)(__type,__off) - -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - -/* file-offset-in-pte helpers */ -BTFIXUPDEF_CALL(unsigned long, pte_to_pgoff, pte_t pte); -BTFIXUPDEF_CALL(pte_t, pgoff_to_pte, unsigned long pgoff); - -#define pte_to_pgoff(pte) BTFIXUP_CALL(pte_to_pgoff)(pte) -#define pgoff_to_pte(off) BTFIXUP_CALL(pgoff_to_pte)(off) - -/* - * This is made a constant because mm/fremap.c required a constant. - * Note that layout of these bits is different between sun4c.c and srmmu.c. - */ -#define PTE_FILE_MAX_BITS 24 - -/* - */ -struct ctx_list { - struct ctx_list *next; - struct ctx_list *prev; - unsigned int ctx_number; - struct mm_struct *ctx_mm; -}; - -extern struct ctx_list *ctx_list_pool; /* Dynamically allocated */ -extern struct ctx_list ctx_free; /* Head of free list */ -extern struct ctx_list ctx_used; /* Head of used contexts list */ - -#define NO_CONTEXT -1 - -static inline void remove_from_ctx_list(struct ctx_list *entry) -{ - entry->next->prev = entry->prev; - entry->prev->next = entry->next; -} - -static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry) -{ - entry->next = head; - (entry->prev = head->prev)->next = entry; - head->prev = entry; -} -#define add_to_free_ctxlist(entry) add_to_ctx_list(&ctx_free, entry) -#define add_to_used_ctxlist(entry) add_to_ctx_list(&ctx_used, entry) - -static inline unsigned long -__get_phys (unsigned long addr) -{ - switch (sparc_cpu_model){ - case sun4: - case sun4c: - return sun4c_get_pte (addr) << PAGE_SHIFT; - case sun4m: - case sun4d: - return ((srmmu_get_pte (addr) & 0xffffff00) << 4); - default: - return 0; - } -} - -static inline int -__get_iospace (unsigned long addr) -{ - switch (sparc_cpu_model){ - case sun4: - case sun4c: - return -1; /* Don't check iospace on sun4c */ - case sun4m: - case sun4d: - return (srmmu_get_pte (addr) >> 28); - default: - return -1; - } -} - -extern unsigned long *sparc_valid_addr_bitmap; - -/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ -#define kern_addr_valid(addr) \ - (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap)) - -extern int io_remap_pfn_range(struct vm_area_struct *vma, - unsigned long from, unsigned long pfn, - unsigned long size, pgprot_t prot); - -/* - * For sparc32&64, the pfn in io_remap_pfn_range() carries in - * its high 4 bits. These macros/functions put it there or get it from there. - */ -#define MK_IOSPACE_PFN(space, pfn) (pfn | (space << (BITS_PER_LONG - 4))) -#define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) -#define GET_PFN(pfn) (pfn & 0x0fffffffUL) - -#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS -#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \ -({ \ - int __changed = !pte_same(*(__ptep), __entry); \ - if (__changed) { \ - set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \ - flush_tlb_page(__vma, __address); \ - } \ - (sparc_cpu_model == sun4c) || __changed; \ -}) - -#include - -#endif /* !(__ASSEMBLY__) */ - -#define VMALLOC_START 0xfe600000 -/* XXX Alter this when I get around to fixing sun4c - Anton */ -#define VMALLOC_END 0xffc00000 - - -/* We provide our own get_unmapped_area to cope with VA holes for userland */ -#define HAVE_ARCH_UNMAPPED_AREA - -/* - * No page table caches to initialise - */ -#define pgtable_cache_init() do { } while (0) - -#endif /* !(_SPARC_PGTABLE_H) */ diff --git a/include/asm-sparc/pgtable_32.h b/include/asm-sparc/pgtable_32.h new file mode 100644 index 000000000000..781bd4694a1c --- /dev/null +++ b/include/asm-sparc/pgtable_32.h @@ -0,0 +1,480 @@ +#ifndef _SPARC_PGTABLE_H +#define _SPARC_PGTABLE_H + +/* asm-sparc/pgtable.h: Defines and functions used to work + * with Sparc page tables. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#ifndef __ASSEMBLY__ +#include + +#include +#include +#include +#ifdef CONFIG_SUN4 +#include +#else +#include +#endif +#include +#include +#include +#include +#include + + +struct vm_area_struct; +struct page; + +extern void load_mmu(void); +extern unsigned long calc_highpages(void); + +BTFIXUPDEF_SIMM13(pgdir_shift) +BTFIXUPDEF_SETHI(pgdir_size) +BTFIXUPDEF_SETHI(pgdir_mask) + +BTFIXUPDEF_SIMM13(ptrs_per_pmd) +BTFIXUPDEF_SIMM13(ptrs_per_pgd) +BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) + +#define pte_ERROR(e) __builtin_trap() +#define pmd_ERROR(e) __builtin_trap() +#define pgd_ERROR(e) __builtin_trap() + +BTFIXUPDEF_INT(page_none) +BTFIXUPDEF_INT(page_copy) +BTFIXUPDEF_INT(page_readonly) +BTFIXUPDEF_INT(page_kernel) + +#define PMD_SHIFT SUN4C_PMD_SHIFT +#define PMD_SIZE (1UL << PMD_SHIFT) +#define PMD_MASK (~(PMD_SIZE-1)) +#define PMD_ALIGN(__addr) (((__addr) + ~PMD_MASK) & PMD_MASK) +#define PGDIR_SHIFT BTFIXUP_SIMM13(pgdir_shift) +#define PGDIR_SIZE BTFIXUP_SETHI(pgdir_size) +#define PGDIR_MASK BTFIXUP_SETHI(pgdir_mask) +#define PTRS_PER_PTE 1024 +#define PTRS_PER_PMD BTFIXUP_SIMM13(ptrs_per_pmd) +#define PTRS_PER_PGD BTFIXUP_SIMM13(ptrs_per_pgd) +#define USER_PTRS_PER_PGD BTFIXUP_SIMM13(user_ptrs_per_pgd) +#define FIRST_USER_ADDRESS 0 +#define PTE_SIZE (PTRS_PER_PTE*4) + +#define PAGE_NONE __pgprot(BTFIXUP_INT(page_none)) +extern pgprot_t PAGE_SHARED; +#define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) +#define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) + +extern unsigned long page_kernel; + +#ifdef MODULE +#define PAGE_KERNEL page_kernel +#else +#define PAGE_KERNEL __pgprot(BTFIXUP_INT(page_kernel)) +#endif + +/* Top-level page directory */ +extern pgd_t swapper_pg_dir[1024]; + +extern void paging_init(void); + +/* Page table for 0-4MB for everybody, on the Sparc this + * holds the same as on the i386. + */ +extern pte_t pg0[1024]; +extern pte_t pg1[1024]; +extern pte_t pg2[1024]; +extern pte_t pg3[1024]; + +extern unsigned long ptr_in_current_pgd; + +/* Here is a trick, since mmap.c need the initializer elements for + * protection_map[] to be constant at compile time, I set the following + * to all zeros. I set it to the real values after I link in the + * appropriate MMU page table routines at boot time. + */ +#define __P000 __pgprot(0) +#define __P001 __pgprot(0) +#define __P010 __pgprot(0) +#define __P011 __pgprot(0) +#define __P100 __pgprot(0) +#define __P101 __pgprot(0) +#define __P110 __pgprot(0) +#define __P111 __pgprot(0) + +#define __S000 __pgprot(0) +#define __S001 __pgprot(0) +#define __S010 __pgprot(0) +#define __S011 __pgprot(0) +#define __S100 __pgprot(0) +#define __S101 __pgprot(0) +#define __S110 __pgprot(0) +#define __S111 __pgprot(0) + +extern int num_contexts; + +/* First physical page can be anywhere, the following is needed so that + * va-->pa and vice versa conversions work properly without performance + * hit for all __pa()/__va() operations. + */ +extern unsigned long phys_base; +extern unsigned long pfn_base; + +/* + * BAD_PAGETABLE is used when we need a bogus page-table, while + * BAD_PAGE is used for a bogus page. + * + * ZERO_PAGE is a global shared page that is always zero: used + * for zero-mapped memory areas etc.. + */ +extern pte_t * __bad_pagetable(void); +extern pte_t __bad_page(void); +extern unsigned long empty_zero_page; + +#define BAD_PAGETABLE __bad_pagetable() +#define BAD_PAGE __bad_page() +#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page)) + +/* + */ +BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t) +BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t) + +#define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd) +#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd) + +BTFIXUPDEF_SETHI(none_mask) +BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t) +BTFIXUPDEF_CALL(void, pte_clear, pte_t *) + +static inline int pte_none(pte_t pte) +{ + return !(pte_val(pte) & ~BTFIXUP_SETHI(none_mask)); +} + +#define pte_present(pte) BTFIXUP_CALL(pte_present)(pte) +#define pte_clear(mm,addr,pte) BTFIXUP_CALL(pte_clear)(pte) + +BTFIXUPDEF_CALL_CONST(int, pmd_bad, pmd_t) +BTFIXUPDEF_CALL_CONST(int, pmd_present, pmd_t) +BTFIXUPDEF_CALL(void, pmd_clear, pmd_t *) + +static inline int pmd_none(pmd_t pmd) +{ + return !(pmd_val(pmd) & ~BTFIXUP_SETHI(none_mask)); +} + +#define pmd_bad(pmd) BTFIXUP_CALL(pmd_bad)(pmd) +#define pmd_present(pmd) BTFIXUP_CALL(pmd_present)(pmd) +#define pmd_clear(pmd) BTFIXUP_CALL(pmd_clear)(pmd) + +BTFIXUPDEF_CALL_CONST(int, pgd_none, pgd_t) +BTFIXUPDEF_CALL_CONST(int, pgd_bad, pgd_t) +BTFIXUPDEF_CALL_CONST(int, pgd_present, pgd_t) +BTFIXUPDEF_CALL(void, pgd_clear, pgd_t *) + +#define pgd_none(pgd) BTFIXUP_CALL(pgd_none)(pgd) +#define pgd_bad(pgd) BTFIXUP_CALL(pgd_bad)(pgd) +#define pgd_present(pgd) BTFIXUP_CALL(pgd_present)(pgd) +#define pgd_clear(pgd) BTFIXUP_CALL(pgd_clear)(pgd) + +/* + * The following only work if pte_present() is true. + * Undefined behaviour if not.. + */ +BTFIXUPDEF_HALF(pte_writei) +BTFIXUPDEF_HALF(pte_dirtyi) +BTFIXUPDEF_HALF(pte_youngi) + +static int pte_write(pte_t pte) __attribute_const__; +static inline int pte_write(pte_t pte) +{ + return pte_val(pte) & BTFIXUP_HALF(pte_writei); +} + +static int pte_dirty(pte_t pte) __attribute_const__; +static inline int pte_dirty(pte_t pte) +{ + return pte_val(pte) & BTFIXUP_HALF(pte_dirtyi); +} + +static int pte_young(pte_t pte) __attribute_const__; +static inline int pte_young(pte_t pte) +{ + return pte_val(pte) & BTFIXUP_HALF(pte_youngi); +} + +/* + * The following only work if pte_present() is not true. + */ +BTFIXUPDEF_HALF(pte_filei) + +static int pte_file(pte_t pte) __attribute_const__; +static inline int pte_file(pte_t pte) +{ + return pte_val(pte) & BTFIXUP_HALF(pte_filei); +} + +static inline int pte_special(pte_t pte) +{ + return 0; +} + +/* + */ +BTFIXUPDEF_HALF(pte_wrprotecti) +BTFIXUPDEF_HALF(pte_mkcleani) +BTFIXUPDEF_HALF(pte_mkoldi) + +static pte_t pte_wrprotect(pte_t pte) __attribute_const__; +static inline pte_t pte_wrprotect(pte_t pte) +{ + return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_wrprotecti)); +} + +static pte_t pte_mkclean(pte_t pte) __attribute_const__; +static inline pte_t pte_mkclean(pte_t pte) +{ + return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkcleani)); +} + +static pte_t pte_mkold(pte_t pte) __attribute_const__; +static inline pte_t pte_mkold(pte_t pte) +{ + return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkoldi)); +} + +BTFIXUPDEF_CALL_CONST(pte_t, pte_mkwrite, pte_t) +BTFIXUPDEF_CALL_CONST(pte_t, pte_mkdirty, pte_t) +BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t) + +#define pte_mkwrite(pte) BTFIXUP_CALL(pte_mkwrite)(pte) +#define pte_mkdirty(pte) BTFIXUP_CALL(pte_mkdirty)(pte) +#define pte_mkyoung(pte) BTFIXUP_CALL(pte_mkyoung)(pte) + +#define pte_mkspecial(pte) (pte) + +#define pfn_pte(pfn, prot) mk_pte(pfn_to_page(pfn), prot) + +BTFIXUPDEF_CALL(unsigned long, pte_pfn, pte_t) +#define pte_pfn(pte) BTFIXUP_CALL(pte_pfn)(pte) +#define pte_page(pte) pfn_to_page(pte_pfn(pte)) + +/* + * Conversion functions: convert a page and protection to a page entry, + * and a page entry and page directory to the page they refer to. + */ +BTFIXUPDEF_CALL_CONST(pte_t, mk_pte, struct page *, pgprot_t) + +BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_phys, unsigned long, pgprot_t) +BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_io, unsigned long, pgprot_t, int) +BTFIXUPDEF_CALL_CONST(pgprot_t, pgprot_noncached, pgprot_t) + +#define mk_pte(page,pgprot) BTFIXUP_CALL(mk_pte)(page,pgprot) +#define mk_pte_phys(page,pgprot) BTFIXUP_CALL(mk_pte_phys)(page,pgprot) +#define mk_pte_io(page,pgprot,space) BTFIXUP_CALL(mk_pte_io)(page,pgprot,space) + +#define pgprot_noncached(pgprot) BTFIXUP_CALL(pgprot_noncached)(pgprot) + +BTFIXUPDEF_INT(pte_modify_mask) + +static pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__; +static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) +{ + return __pte((pte_val(pte) & BTFIXUP_INT(pte_modify_mask)) | + pgprot_val(newprot)); +} + +#define pgd_index(address) ((address) >> PGDIR_SHIFT) + +/* to find an entry in a page-table-directory */ +#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) + +/* to find an entry in a kernel page-table-directory */ +#define pgd_offset_k(address) pgd_offset(&init_mm, address) + +/* Find an entry in the second-level page table.. */ +BTFIXUPDEF_CALL(pmd_t *, pmd_offset, pgd_t *, unsigned long) +#define pmd_offset(dir,addr) BTFIXUP_CALL(pmd_offset)(dir,addr) + +/* Find an entry in the third-level page table.. */ +BTFIXUPDEF_CALL(pte_t *, pte_offset_kernel, pmd_t *, unsigned long) +#define pte_offset_kernel(dir,addr) BTFIXUP_CALL(pte_offset_kernel)(dir,addr) + +/* + * This shortcut works on sun4m (and sun4d) because the nocache area is static, + * and sun4c is guaranteed to have no highmem anyway. + */ +#define pte_offset_map(d, a) pte_offset_kernel(d,a) +#define pte_offset_map_nested(d, a) pte_offset_kernel(d,a) + +#define pte_unmap(pte) do{}while(0) +#define pte_unmap_nested(pte) do{}while(0) + +/* Certain architectures need to do special things when pte's + * within a page table are directly modified. Thus, the following + * hook is made available. + */ + +BTFIXUPDEF_CALL(void, set_pte, pte_t *, pte_t) + +#define set_pte(ptep,pteval) BTFIXUP_CALL(set_pte)(ptep,pteval) +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) + +struct seq_file; +BTFIXUPDEF_CALL(void, mmu_info, struct seq_file *) + +#define mmu_info(p) BTFIXUP_CALL(mmu_info)(p) + +/* Fault handler stuff... */ +#define FAULT_CODE_PROT 0x1 +#define FAULT_CODE_WRITE 0x2 +#define FAULT_CODE_USER 0x4 + +BTFIXUPDEF_CALL(void, update_mmu_cache, struct vm_area_struct *, unsigned long, pte_t) + +#define update_mmu_cache(vma,addr,pte) BTFIXUP_CALL(update_mmu_cache)(vma,addr,pte) + +BTFIXUPDEF_CALL(void, sparc_mapiorange, unsigned int, unsigned long, + unsigned long, unsigned int) +BTFIXUPDEF_CALL(void, sparc_unmapiorange, unsigned long, unsigned int) +#define sparc_mapiorange(bus,pa,va,len) BTFIXUP_CALL(sparc_mapiorange)(bus,pa,va,len) +#define sparc_unmapiorange(va,len) BTFIXUP_CALL(sparc_unmapiorange)(va,len) + +extern int invalid_segment; + +/* Encode and de-code a swap entry */ +BTFIXUPDEF_CALL(unsigned long, __swp_type, swp_entry_t) +BTFIXUPDEF_CALL(unsigned long, __swp_offset, swp_entry_t) +BTFIXUPDEF_CALL(swp_entry_t, __swp_entry, unsigned long, unsigned long) + +#define __swp_type(__x) BTFIXUP_CALL(__swp_type)(__x) +#define __swp_offset(__x) BTFIXUP_CALL(__swp_offset)(__x) +#define __swp_entry(__type,__off) BTFIXUP_CALL(__swp_entry)(__type,__off) + +#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) +#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) + +/* file-offset-in-pte helpers */ +BTFIXUPDEF_CALL(unsigned long, pte_to_pgoff, pte_t pte); +BTFIXUPDEF_CALL(pte_t, pgoff_to_pte, unsigned long pgoff); + +#define pte_to_pgoff(pte) BTFIXUP_CALL(pte_to_pgoff)(pte) +#define pgoff_to_pte(off) BTFIXUP_CALL(pgoff_to_pte)(off) + +/* + * This is made a constant because mm/fremap.c required a constant. + * Note that layout of these bits is different between sun4c.c and srmmu.c. + */ +#define PTE_FILE_MAX_BITS 24 + +/* + */ +struct ctx_list { + struct ctx_list *next; + struct ctx_list *prev; + unsigned int ctx_number; + struct mm_struct *ctx_mm; +}; + +extern struct ctx_list *ctx_list_pool; /* Dynamically allocated */ +extern struct ctx_list ctx_free; /* Head of free list */ +extern struct ctx_list ctx_used; /* Head of used contexts list */ + +#define NO_CONTEXT -1 + +static inline void remove_from_ctx_list(struct ctx_list *entry) +{ + entry->next->prev = entry->prev; + entry->prev->next = entry->next; +} + +static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry) +{ + entry->next = head; + (entry->prev = head->prev)->next = entry; + head->prev = entry; +} +#define add_to_free_ctxlist(entry) add_to_ctx_list(&ctx_free, entry) +#define add_to_used_ctxlist(entry) add_to_ctx_list(&ctx_used, entry) + +static inline unsigned long +__get_phys (unsigned long addr) +{ + switch (sparc_cpu_model){ + case sun4: + case sun4c: + return sun4c_get_pte (addr) << PAGE_SHIFT; + case sun4m: + case sun4d: + return ((srmmu_get_pte (addr) & 0xffffff00) << 4); + default: + return 0; + } +} + +static inline int +__get_iospace (unsigned long addr) +{ + switch (sparc_cpu_model){ + case sun4: + case sun4c: + return -1; /* Don't check iospace on sun4c */ + case sun4m: + case sun4d: + return (srmmu_get_pte (addr) >> 28); + default: + return -1; + } +} + +extern unsigned long *sparc_valid_addr_bitmap; + +/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ +#define kern_addr_valid(addr) \ + (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap)) + +extern int io_remap_pfn_range(struct vm_area_struct *vma, + unsigned long from, unsigned long pfn, + unsigned long size, pgprot_t prot); + +/* + * For sparc32&64, the pfn in io_remap_pfn_range() carries in + * its high 4 bits. These macros/functions put it there or get it from there. + */ +#define MK_IOSPACE_PFN(space, pfn) (pfn | (space << (BITS_PER_LONG - 4))) +#define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) +#define GET_PFN(pfn) (pfn & 0x0fffffffUL) + +#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS +#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \ +({ \ + int __changed = !pte_same(*(__ptep), __entry); \ + if (__changed) { \ + set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \ + flush_tlb_page(__vma, __address); \ + } \ + (sparc_cpu_model == sun4c) || __changed; \ +}) + +#include + +#endif /* !(__ASSEMBLY__) */ + +#define VMALLOC_START 0xfe600000 +/* XXX Alter this when I get around to fixing sun4c - Anton */ +#define VMALLOC_END 0xffc00000 + + +/* We provide our own get_unmapped_area to cope with VA holes for userland */ +#define HAVE_ARCH_UNMAPPED_AREA + +/* + * No page table caches to initialise + */ +#define pgtable_cache_init() do { } while (0) + +#endif /* !(_SPARC_PGTABLE_H) */ diff --git a/include/asm-sparc/pgtable_64.h b/include/asm-sparc/pgtable_64.h new file mode 100644 index 000000000000..78d5594964a3 --- /dev/null +++ b/include/asm-sparc/pgtable_64.h @@ -0,0 +1,781 @@ +/* + * pgtable.h: SpitFire page table operations. + * + * Copyright 1996,1997 David S. Miller (davem@caip.rutgers.edu) + * Copyright 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#ifndef _SPARC64_PGTABLE_H +#define _SPARC64_PGTABLE_H + +/* This file contains the functions and defines necessary to modify and use + * the SpitFire page tables. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +/* The kernel image occupies 0x4000000 to 0x6000000 (4MB --> 96MB). + * The page copy blockops can use 0x6000000 to 0x8000000. + * The TSB is mapped in the 0x8000000 to 0xa000000 range. + * The PROM resides in an area spanning 0xf0000000 to 0x100000000. + * The vmalloc area spans 0x100000000 to 0x200000000. + * Since modules need to be in the lowest 32-bits of the address space, + * we place them right before the OBP area from 0x10000000 to 0xf0000000. + * There is a single static kernel PMD which maps from 0x0 to address + * 0x400000000. + */ +#define TLBTEMP_BASE _AC(0x0000000006000000,UL) +#define TSBMAP_BASE _AC(0x0000000008000000,UL) +#define MODULES_VADDR _AC(0x0000000010000000,UL) +#define MODULES_LEN _AC(0x00000000e0000000,UL) +#define MODULES_END _AC(0x00000000f0000000,UL) +#define LOW_OBP_ADDRESS _AC(0x00000000f0000000,UL) +#define HI_OBP_ADDRESS _AC(0x0000000100000000,UL) +#define VMALLOC_START _AC(0x0000000100000000,UL) +#define VMALLOC_END _AC(0x0000000200000000,UL) +#define VMEMMAP_BASE _AC(0x0000000200000000,UL) + +#define vmemmap ((struct page *)VMEMMAP_BASE) + +/* XXX All of this needs to be rethought so we can take advantage + * XXX cheetah's full 64-bit virtual address space, ie. no more hole + * XXX in the middle like on spitfire. -DaveM + */ +/* + * Given a virtual address, the lowest PAGE_SHIFT bits determine offset + * into the page; the next higher PAGE_SHIFT-3 bits determine the pte# + * in the proper pagetable (the -3 is from the 8 byte ptes, and each page + * table is a single page long). The next higher PMD_BITS determine pmd# + * in the proper pmdtable (where we must have PMD_BITS <= (PAGE_SHIFT-2) + * since the pmd entries are 4 bytes, and each pmd page is a single page + * long). Finally, the higher few bits determine pgde#. + */ + +/* PMD_SHIFT determines the size of the area a second-level page + * table can map + */ +#define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3)) +#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT) +#define PMD_MASK (~(PMD_SIZE-1)) +#define PMD_BITS (PAGE_SHIFT - 2) + +/* PGDIR_SHIFT determines what a third-level page table entry can map */ +#define PGDIR_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3) + PMD_BITS) +#define PGDIR_SIZE (_AC(1,UL) << PGDIR_SHIFT) +#define PGDIR_MASK (~(PGDIR_SIZE-1)) +#define PGDIR_BITS (PAGE_SHIFT - 2) + +#ifndef __ASSEMBLY__ + +#include + +/* Entries per page directory level. */ +#define PTRS_PER_PTE (1UL << (PAGE_SHIFT-3)) +#define PTRS_PER_PMD (1UL << PMD_BITS) +#define PTRS_PER_PGD (1UL << PGDIR_BITS) + +/* Kernel has a separate 44bit address space. */ +#define FIRST_USER_ADDRESS 0 + +#define pte_ERROR(e) __builtin_trap() +#define pmd_ERROR(e) __builtin_trap() +#define pgd_ERROR(e) __builtin_trap() + +#endif /* !(__ASSEMBLY__) */ + +/* PTE bits which are the same in SUN4U and SUN4V format. */ +#define _PAGE_VALID _AC(0x8000000000000000,UL) /* Valid TTE */ +#define _PAGE_R _AC(0x8000000000000000,UL) /* Keep ref bit uptodate*/ + +/* SUN4U pte bits... */ +#define _PAGE_SZ4MB_4U _AC(0x6000000000000000,UL) /* 4MB Page */ +#define _PAGE_SZ512K_4U _AC(0x4000000000000000,UL) /* 512K Page */ +#define _PAGE_SZ64K_4U _AC(0x2000000000000000,UL) /* 64K Page */ +#define _PAGE_SZ8K_4U _AC(0x0000000000000000,UL) /* 8K Page */ +#define _PAGE_NFO_4U _AC(0x1000000000000000,UL) /* No Fault Only */ +#define _PAGE_IE_4U _AC(0x0800000000000000,UL) /* Invert Endianness */ +#define _PAGE_SOFT2_4U _AC(0x07FC000000000000,UL) /* Software bits, set 2 */ +#define _PAGE_RES1_4U _AC(0x0002000000000000,UL) /* Reserved */ +#define _PAGE_SZ32MB_4U _AC(0x0001000000000000,UL) /* (Panther) 32MB page */ +#define _PAGE_SZ256MB_4U _AC(0x2001000000000000,UL) /* (Panther) 256MB page */ +#define _PAGE_SZALL_4U _AC(0x6001000000000000,UL) /* All pgsz bits */ +#define _PAGE_SN_4U _AC(0x0000800000000000,UL) /* (Cheetah) Snoop */ +#define _PAGE_RES2_4U _AC(0x0000780000000000,UL) /* Reserved */ +#define _PAGE_PADDR_4U _AC(0x000007FFFFFFE000,UL) /* (Cheetah) pa[42:13] */ +#define _PAGE_SOFT_4U _AC(0x0000000000001F80,UL) /* Software bits: */ +#define _PAGE_EXEC_4U _AC(0x0000000000001000,UL) /* Executable SW bit */ +#define _PAGE_MODIFIED_4U _AC(0x0000000000000800,UL) /* Modified (dirty) */ +#define _PAGE_FILE_4U _AC(0x0000000000000800,UL) /* Pagecache page */ +#define _PAGE_ACCESSED_4U _AC(0x0000000000000400,UL) /* Accessed (ref'd) */ +#define _PAGE_READ_4U _AC(0x0000000000000200,UL) /* Readable SW Bit */ +#define _PAGE_WRITE_4U _AC(0x0000000000000100,UL) /* Writable SW Bit */ +#define _PAGE_PRESENT_4U _AC(0x0000000000000080,UL) /* Present */ +#define _PAGE_L_4U _AC(0x0000000000000040,UL) /* Locked TTE */ +#define _PAGE_CP_4U _AC(0x0000000000000020,UL) /* Cacheable in P-Cache */ +#define _PAGE_CV_4U _AC(0x0000000000000010,UL) /* Cacheable in V-Cache */ +#define _PAGE_E_4U _AC(0x0000000000000008,UL) /* side-Effect */ +#define _PAGE_P_4U _AC(0x0000000000000004,UL) /* Privileged Page */ +#define _PAGE_W_4U _AC(0x0000000000000002,UL) /* Writable */ + +/* SUN4V pte bits... */ +#define _PAGE_NFO_4V _AC(0x4000000000000000,UL) /* No Fault Only */ +#define _PAGE_SOFT2_4V _AC(0x3F00000000000000,UL) /* Software bits, set 2 */ +#define _PAGE_MODIFIED_4V _AC(0x2000000000000000,UL) /* Modified (dirty) */ +#define _PAGE_ACCESSED_4V _AC(0x1000000000000000,UL) /* Accessed (ref'd) */ +#define _PAGE_READ_4V _AC(0x0800000000000000,UL) /* Readable SW Bit */ +#define _PAGE_WRITE_4V _AC(0x0400000000000000,UL) /* Writable SW Bit */ +#define _PAGE_PADDR_4V _AC(0x00FFFFFFFFFFE000,UL) /* paddr[55:13] */ +#define _PAGE_IE_4V _AC(0x0000000000001000,UL) /* Invert Endianness */ +#define _PAGE_E_4V _AC(0x0000000000000800,UL) /* side-Effect */ +#define _PAGE_CP_4V _AC(0x0000000000000400,UL) /* Cacheable in P-Cache */ +#define _PAGE_CV_4V _AC(0x0000000000000200,UL) /* Cacheable in V-Cache */ +#define _PAGE_P_4V _AC(0x0000000000000100,UL) /* Privileged Page */ +#define _PAGE_EXEC_4V _AC(0x0000000000000080,UL) /* Executable Page */ +#define _PAGE_W_4V _AC(0x0000000000000040,UL) /* Writable */ +#define _PAGE_SOFT_4V _AC(0x0000000000000030,UL) /* Software bits */ +#define _PAGE_FILE_4V _AC(0x0000000000000020,UL) /* Pagecache page */ +#define _PAGE_PRESENT_4V _AC(0x0000000000000010,UL) /* Present */ +#define _PAGE_RESV_4V _AC(0x0000000000000008,UL) /* Reserved */ +#define _PAGE_SZ16GB_4V _AC(0x0000000000000007,UL) /* 16GB Page */ +#define _PAGE_SZ2GB_4V _AC(0x0000000000000006,UL) /* 2GB Page */ +#define _PAGE_SZ256MB_4V _AC(0x0000000000000005,UL) /* 256MB Page */ +#define _PAGE_SZ32MB_4V _AC(0x0000000000000004,UL) /* 32MB Page */ +#define _PAGE_SZ4MB_4V _AC(0x0000000000000003,UL) /* 4MB Page */ +#define _PAGE_SZ512K_4V _AC(0x0000000000000002,UL) /* 512K Page */ +#define _PAGE_SZ64K_4V _AC(0x0000000000000001,UL) /* 64K Page */ +#define _PAGE_SZ8K_4V _AC(0x0000000000000000,UL) /* 8K Page */ +#define _PAGE_SZALL_4V _AC(0x0000000000000007,UL) /* All pgsz bits */ + +#if PAGE_SHIFT == 13 +#define _PAGE_SZBITS_4U _PAGE_SZ8K_4U +#define _PAGE_SZBITS_4V _PAGE_SZ8K_4V +#elif PAGE_SHIFT == 16 +#define _PAGE_SZBITS_4U _PAGE_SZ64K_4U +#define _PAGE_SZBITS_4V _PAGE_SZ64K_4V +#elif PAGE_SHIFT == 19 +#define _PAGE_SZBITS_4U _PAGE_SZ512K_4U +#define _PAGE_SZBITS_4V _PAGE_SZ512K_4V +#elif PAGE_SHIFT == 22 +#define _PAGE_SZBITS_4U _PAGE_SZ4MB_4U +#define _PAGE_SZBITS_4V _PAGE_SZ4MB_4V +#else +#error Wrong PAGE_SHIFT specified +#endif + +#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) +#define _PAGE_SZHUGE_4U _PAGE_SZ4MB_4U +#define _PAGE_SZHUGE_4V _PAGE_SZ4MB_4V +#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) +#define _PAGE_SZHUGE_4U _PAGE_SZ512K_4U +#define _PAGE_SZHUGE_4V _PAGE_SZ512K_4V +#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) +#define _PAGE_SZHUGE_4U _PAGE_SZ64K_4U +#define _PAGE_SZHUGE_4V _PAGE_SZ64K_4V +#endif + +/* These are actually filled in at boot time by sun4{u,v}_pgprot_init() */ +#define __P000 __pgprot(0) +#define __P001 __pgprot(0) +#define __P010 __pgprot(0) +#define __P011 __pgprot(0) +#define __P100 __pgprot(0) +#define __P101 __pgprot(0) +#define __P110 __pgprot(0) +#define __P111 __pgprot(0) + +#define __S000 __pgprot(0) +#define __S001 __pgprot(0) +#define __S010 __pgprot(0) +#define __S011 __pgprot(0) +#define __S100 __pgprot(0) +#define __S101 __pgprot(0) +#define __S110 __pgprot(0) +#define __S111 __pgprot(0) + +#ifndef __ASSEMBLY__ + +extern pte_t mk_pte_io(unsigned long, pgprot_t, int, unsigned long); + +extern unsigned long pte_sz_bits(unsigned long size); + +extern pgprot_t PAGE_KERNEL; +extern pgprot_t PAGE_KERNEL_LOCKED; +extern pgprot_t PAGE_COPY; +extern pgprot_t PAGE_SHARED; + +/* XXX This uglyness is for the atyfb driver's sparc mmap() support. XXX */ +extern unsigned long _PAGE_IE; +extern unsigned long _PAGE_E; +extern unsigned long _PAGE_CACHE; + +extern unsigned long pg_iobits; +extern unsigned long _PAGE_ALL_SZ_BITS; +extern unsigned long _PAGE_SZBITS; + +extern struct page *mem_map_zero; +#define ZERO_PAGE(vaddr) (mem_map_zero) + +/* PFNs are real physical page numbers. However, mem_map only begins to record + * per-page information starting at pfn_base. This is to handle systems where + * the first physical page in the machine is at some huge physical address, + * such as 4GB. This is common on a partitioned E10000, for example. + */ +static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot) +{ + unsigned long paddr = pfn << PAGE_SHIFT; + unsigned long sz_bits; + + sz_bits = 0UL; + if (_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL) { + __asm__ __volatile__( + "\n661: sethi %%uhi(%1), %0\n" + " sllx %0, 32, %0\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " mov %2, %0\n" + " nop\n" + " .previous\n" + : "=r" (sz_bits) + : "i" (_PAGE_SZBITS_4U), "i" (_PAGE_SZBITS_4V)); + } + return __pte(paddr | sz_bits | pgprot_val(prot)); +} +#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) + +/* This one can be done with two shifts. */ +static inline unsigned long pte_pfn(pte_t pte) +{ + unsigned long ret; + + __asm__ __volatile__( + "\n661: sllx %1, %2, %0\n" + " srlx %0, %3, %0\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sllx %1, %4, %0\n" + " srlx %0, %5, %0\n" + " .previous\n" + : "=r" (ret) + : "r" (pte_val(pte)), + "i" (21), "i" (21 + PAGE_SHIFT), + "i" (8), "i" (8 + PAGE_SHIFT)); + + return ret; +} +#define pte_page(x) pfn_to_page(pte_pfn(x)) + +static inline pte_t pte_modify(pte_t pte, pgprot_t prot) +{ + unsigned long mask, tmp; + + /* SUN4U: 0x600307ffffffecb8 (negated == 0x9ffcf80000001347) + * SUN4V: 0x30ffffffffffee17 (negated == 0xcf000000000011e8) + * + * Even if we use negation tricks the result is still a 6 + * instruction sequence, so don't try to play fancy and just + * do the most straightforward implementation. + * + * Note: We encode this into 3 sun4v 2-insn patch sequences. + */ + + __asm__ __volatile__( + "\n661: sethi %%uhi(%2), %1\n" + " sethi %%hi(%2), %0\n" + "\n662: or %1, %%ulo(%2), %1\n" + " or %0, %%lo(%2), %0\n" + "\n663: sllx %1, 32, %1\n" + " or %0, %1, %0\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%3), %1\n" + " sethi %%hi(%3), %0\n" + " .word 662b\n" + " or %1, %%ulo(%3), %1\n" + " or %0, %%lo(%3), %0\n" + " .word 663b\n" + " sllx %1, 32, %1\n" + " or %0, %1, %0\n" + " .previous\n" + : "=r" (mask), "=r" (tmp) + : "i" (_PAGE_PADDR_4U | _PAGE_MODIFIED_4U | _PAGE_ACCESSED_4U | + _PAGE_CP_4U | _PAGE_CV_4U | _PAGE_E_4U | _PAGE_PRESENT_4U | + _PAGE_SZBITS_4U), + "i" (_PAGE_PADDR_4V | _PAGE_MODIFIED_4V | _PAGE_ACCESSED_4V | + _PAGE_CP_4V | _PAGE_CV_4V | _PAGE_E_4V | _PAGE_PRESENT_4V | + _PAGE_SZBITS_4V)); + + return __pte((pte_val(pte) & mask) | (pgprot_val(prot) & ~mask)); +} + +static inline pte_t pgoff_to_pte(unsigned long off) +{ + off <<= PAGE_SHIFT; + + __asm__ __volatile__( + "\n661: or %0, %2, %0\n" + " .section .sun4v_1insn_patch, \"ax\"\n" + " .word 661b\n" + " or %0, %3, %0\n" + " .previous\n" + : "=r" (off) + : "0" (off), "i" (_PAGE_FILE_4U), "i" (_PAGE_FILE_4V)); + + return __pte(off); +} + +static inline pgprot_t pgprot_noncached(pgprot_t prot) +{ + unsigned long val = pgprot_val(prot); + + __asm__ __volatile__( + "\n661: andn %0, %2, %0\n" + " or %0, %3, %0\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " andn %0, %4, %0\n" + " or %0, %5, %0\n" + " .previous\n" + : "=r" (val) + : "0" (val), "i" (_PAGE_CP_4U | _PAGE_CV_4U), "i" (_PAGE_E_4U), + "i" (_PAGE_CP_4V | _PAGE_CV_4V), "i" (_PAGE_E_4V)); + + return __pgprot(val); +} +/* Various pieces of code check for platform support by ifdef testing + * on "pgprot_noncached". That's broken and should be fixed, but for + * now... + */ +#define pgprot_noncached pgprot_noncached + +#ifdef CONFIG_HUGETLB_PAGE +static inline pte_t pte_mkhuge(pte_t pte) +{ + unsigned long mask; + + __asm__ __volatile__( + "\n661: sethi %%uhi(%1), %0\n" + " sllx %0, 32, %0\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " mov %2, %0\n" + " nop\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_SZHUGE_4U), "i" (_PAGE_SZHUGE_4V)); + + return __pte(pte_val(pte) | mask); +} +#endif + +static inline pte_t pte_mkdirty(pte_t pte) +{ + unsigned long val = pte_val(pte), tmp; + + __asm__ __volatile__( + "\n661: or %0, %3, %0\n" + " nop\n" + "\n662: nop\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%4), %1\n" + " sllx %1, 32, %1\n" + " .word 662b\n" + " or %1, %%lo(%4), %1\n" + " or %0, %1, %0\n" + " .previous\n" + : "=r" (val), "=r" (tmp) + : "0" (val), "i" (_PAGE_MODIFIED_4U | _PAGE_W_4U), + "i" (_PAGE_MODIFIED_4V | _PAGE_W_4V)); + + return __pte(val); +} + +static inline pte_t pte_mkclean(pte_t pte) +{ + unsigned long val = pte_val(pte), tmp; + + __asm__ __volatile__( + "\n661: andn %0, %3, %0\n" + " nop\n" + "\n662: nop\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%4), %1\n" + " sllx %1, 32, %1\n" + " .word 662b\n" + " or %1, %%lo(%4), %1\n" + " andn %0, %1, %0\n" + " .previous\n" + : "=r" (val), "=r" (tmp) + : "0" (val), "i" (_PAGE_MODIFIED_4U | _PAGE_W_4U), + "i" (_PAGE_MODIFIED_4V | _PAGE_W_4V)); + + return __pte(val); +} + +static inline pte_t pte_mkwrite(pte_t pte) +{ + unsigned long val = pte_val(pte), mask; + + __asm__ __volatile__( + "\n661: mov %1, %0\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%2), %0\n" + " sllx %0, 32, %0\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V)); + + return __pte(val | mask); +} + +static inline pte_t pte_wrprotect(pte_t pte) +{ + unsigned long val = pte_val(pte), tmp; + + __asm__ __volatile__( + "\n661: andn %0, %3, %0\n" + " nop\n" + "\n662: nop\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%4), %1\n" + " sllx %1, 32, %1\n" + " .word 662b\n" + " or %1, %%lo(%4), %1\n" + " andn %0, %1, %0\n" + " .previous\n" + : "=r" (val), "=r" (tmp) + : "0" (val), "i" (_PAGE_WRITE_4U | _PAGE_W_4U), + "i" (_PAGE_WRITE_4V | _PAGE_W_4V)); + + return __pte(val); +} + +static inline pte_t pte_mkold(pte_t pte) +{ + unsigned long mask; + + __asm__ __volatile__( + "\n661: mov %1, %0\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%2), %0\n" + " sllx %0, 32, %0\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V)); + + mask |= _PAGE_R; + + return __pte(pte_val(pte) & ~mask); +} + +static inline pte_t pte_mkyoung(pte_t pte) +{ + unsigned long mask; + + __asm__ __volatile__( + "\n661: mov %1, %0\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%2), %0\n" + " sllx %0, 32, %0\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V)); + + mask |= _PAGE_R; + + return __pte(pte_val(pte) | mask); +} + +static inline pte_t pte_mkspecial(pte_t pte) +{ + return pte; +} + +static inline unsigned long pte_young(pte_t pte) +{ + unsigned long mask; + + __asm__ __volatile__( + "\n661: mov %1, %0\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%2), %0\n" + " sllx %0, 32, %0\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V)); + + return (pte_val(pte) & mask); +} + +static inline unsigned long pte_dirty(pte_t pte) +{ + unsigned long mask; + + __asm__ __volatile__( + "\n661: mov %1, %0\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%2), %0\n" + " sllx %0, 32, %0\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_MODIFIED_4U), "i" (_PAGE_MODIFIED_4V)); + + return (pte_val(pte) & mask); +} + +static inline unsigned long pte_write(pte_t pte) +{ + unsigned long mask; + + __asm__ __volatile__( + "\n661: mov %1, %0\n" + " nop\n" + " .section .sun4v_2insn_patch, \"ax\"\n" + " .word 661b\n" + " sethi %%uhi(%2), %0\n" + " sllx %0, 32, %0\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V)); + + return (pte_val(pte) & mask); +} + +static inline unsigned long pte_exec(pte_t pte) +{ + unsigned long mask; + + __asm__ __volatile__( + "\n661: sethi %%hi(%1), %0\n" + " .section .sun4v_1insn_patch, \"ax\"\n" + " .word 661b\n" + " mov %2, %0\n" + " .previous\n" + : "=r" (mask) + : "i" (_PAGE_EXEC_4U), "i" (_PAGE_EXEC_4V)); + + return (pte_val(pte) & mask); +} + +static inline unsigned long pte_file(pte_t pte) +{ + unsigned long val = pte_val(pte); + + __asm__ __volatile__( + "\n661: and %0, %2, %0\n" + " .section .sun4v_1insn_patch, \"ax\"\n" + " .word 661b\n" + " and %0, %3, %0\n" + " .previous\n" + : "=r" (val) + : "0" (val), "i" (_PAGE_FILE_4U), "i" (_PAGE_FILE_4V)); + + return val; +} + +static inline unsigned long pte_present(pte_t pte) +{ + unsigned long val = pte_val(pte); + + __asm__ __volatile__( + "\n661: and %0, %2, %0\n" + " .section .sun4v_1insn_patch, \"ax\"\n" + " .word 661b\n" + " and %0, %3, %0\n" + " .previous\n" + : "=r" (val) + : "0" (val), "i" (_PAGE_PRESENT_4U), "i" (_PAGE_PRESENT_4V)); + + return val; +} + +static inline int pte_special(pte_t pte) +{ + return 0; +} + +#define pmd_set(pmdp, ptep) \ + (pmd_val(*(pmdp)) = (__pa((unsigned long) (ptep)) >> 11UL)) +#define pud_set(pudp, pmdp) \ + (pud_val(*(pudp)) = (__pa((unsigned long) (pmdp)) >> 11UL)) +#define __pmd_page(pmd) \ + ((unsigned long) __va((((unsigned long)pmd_val(pmd))<<11UL))) +#define pmd_page(pmd) virt_to_page((void *)__pmd_page(pmd)) +#define pud_page_vaddr(pud) \ + ((unsigned long) __va((((unsigned long)pud_val(pud))<<11UL))) +#define pud_page(pud) virt_to_page((void *)pud_page_vaddr(pud)) +#define pmd_none(pmd) (!pmd_val(pmd)) +#define pmd_bad(pmd) (0) +#define pmd_present(pmd) (pmd_val(pmd) != 0U) +#define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0U) +#define pud_none(pud) (!pud_val(pud)) +#define pud_bad(pud) (0) +#define pud_present(pud) (pud_val(pud) != 0U) +#define pud_clear(pudp) (pud_val(*(pudp)) = 0U) + +/* Same in both SUN4V and SUN4U. */ +#define pte_none(pte) (!pte_val(pte)) + +/* to find an entry in a page-table-directory. */ +#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) +#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) + +/* to find an entry in a kernel page-table-directory */ +#define pgd_offset_k(address) pgd_offset(&init_mm, address) + +/* Find an entry in the second-level page table.. */ +#define pmd_offset(pudp, address) \ + ((pmd_t *) pud_page_vaddr(*(pudp)) + \ + (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))) + +/* Find an entry in the third-level page table.. */ +#define pte_index(dir, address) \ + ((pte_t *) __pmd_page(*(dir)) + \ + ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))) +#define pte_offset_kernel pte_index +#define pte_offset_map pte_index +#define pte_offset_map_nested pte_index +#define pte_unmap(pte) do { } while (0) +#define pte_unmap_nested(pte) do { } while (0) + +/* Actual page table PTE updates. */ +extern void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig); + +static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) +{ + pte_t orig = *ptep; + + *ptep = pte; + + /* It is more efficient to let flush_tlb_kernel_range() + * handle init_mm tlb flushes. + * + * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U + * and SUN4V pte layout, so this inline test is fine. + */ + if (likely(mm != &init_mm) && (pte_val(orig) & _PAGE_VALID)) + tlb_batch_add(mm, addr, ptep, orig); +} + +#define pte_clear(mm,addr,ptep) \ + set_pte_at((mm), (addr), (ptep), __pte(0UL)) + +#ifdef DCACHE_ALIASING_POSSIBLE +#define __HAVE_ARCH_MOVE_PTE +#define move_pte(pte, prot, old_addr, new_addr) \ +({ \ + pte_t newpte = (pte); \ + if (tlb_type != hypervisor && pte_present(pte)) { \ + unsigned long this_pfn = pte_pfn(pte); \ + \ + if (pfn_valid(this_pfn) && \ + (((old_addr) ^ (new_addr)) & (1 << 13))) \ + flush_dcache_page_all(current->mm, \ + pfn_to_page(this_pfn)); \ + } \ + newpte; \ +}) +#endif + +extern pgd_t swapper_pg_dir[2048]; +extern pmd_t swapper_low_pmd_dir[2048]; + +extern void paging_init(void); +extern unsigned long find_ecache_flush_span(unsigned long size); + +/* These do nothing with the way I have things setup. */ +#define mmu_lockarea(vaddr, len) (vaddr) +#define mmu_unlockarea(vaddr, len) do { } while(0) + +struct vm_area_struct; +extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t); + +/* Encode and de-code a swap entry */ +#define __swp_type(entry) (((entry).val >> PAGE_SHIFT) & 0xffUL) +#define __swp_offset(entry) ((entry).val >> (PAGE_SHIFT + 8UL)) +#define __swp_entry(type, offset) \ + ( (swp_entry_t) \ + { \ + (((long)(type) << PAGE_SHIFT) | \ + ((long)(offset) << (PAGE_SHIFT + 8UL))) \ + } ) +#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) +#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) + +/* File offset in PTE support. */ +extern unsigned long pte_file(pte_t); +#define pte_to_pgoff(pte) (pte_val(pte) >> PAGE_SHIFT) +extern pte_t pgoff_to_pte(unsigned long); +#define PTE_FILE_MAX_BITS (64UL - PAGE_SHIFT - 1UL) + +extern unsigned long *sparc64_valid_addr_bitmap; + +/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ +#define kern_addr_valid(addr) \ + (test_bit(__pa((unsigned long)(addr))>>22, sparc64_valid_addr_bitmap)) + +extern int page_in_phys_avail(unsigned long paddr); + +extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, + unsigned long pfn, + unsigned long size, pgprot_t prot); + +/* + * For sparc32&64, the pfn in io_remap_pfn_range() carries in + * its high 4 bits. These macros/functions put it there or get it from there. + */ +#define MK_IOSPACE_PFN(space, pfn) (pfn | (space << (BITS_PER_LONG - 4))) +#define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) +#define GET_PFN(pfn) (pfn & 0x0fffffffffffffffUL) + +#include + +/* We provide our own get_unmapped_area to cope with VA holes and + * SHM area cache aliasing for userland. + */ +#define HAVE_ARCH_UNMAPPED_AREA +#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN + +/* We provide a special get_unmapped_area for framebuffer mmaps to try and use + * the largest alignment possible such that larget PTEs can be used. + */ +extern unsigned long get_fb_unmapped_area(struct file *filp, unsigned long, + unsigned long, unsigned long, + unsigned long); +#define HAVE_ARCH_FB_UNMAPPED_AREA + +extern void pgtable_cache_init(void); +extern void sun4v_register_fault_status(void); +extern void sun4v_ktsb_register(void); +extern void __init cheetah_ecache_flush_init(void); +extern void sun4v_patch_tlb_handlers(void); + +extern unsigned long cmdline_memory_size; + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(_SPARC64_PGTABLE_H) */ diff --git a/include/asm-sparc/posix_types.h b/include/asm-sparc/posix_types.h index dcc07eb5e181..58c820d75e83 100644 --- a/include/asm-sparc/posix_types.h +++ b/include/asm-sparc/posix_types.h @@ -1,118 +1,8 @@ -#ifndef __ARCH_SPARC_POSIX_TYPES_H -#define __ARCH_SPARC_POSIX_TYPES_H - -/* - * This file is generally used by user-level software, so you need to - * be a little careful about namespace pollution etc. Also, we cannot - * assume GCC is being used. - */ - -typedef unsigned int __kernel_size_t; -typedef int __kernel_ssize_t; -typedef long int __kernel_ptrdiff_t; -typedef long __kernel_time_t; -typedef long __kernel_suseconds_t; -typedef long __kernel_clock_t; -typedef int __kernel_pid_t; -typedef unsigned short __kernel_ipc_pid_t; -typedef unsigned short __kernel_uid_t; -typedef unsigned short __kernel_gid_t; -typedef unsigned long __kernel_ino_t; -typedef unsigned short __kernel_mode_t; -typedef unsigned short __kernel_umode_t; -typedef short __kernel_nlink_t; -typedef long __kernel_daddr_t; -typedef long __kernel_off_t; -typedef char * __kernel_caddr_t; -typedef unsigned short __kernel_uid16_t; -typedef unsigned short __kernel_gid16_t; -typedef unsigned int __kernel_uid32_t; -typedef unsigned int __kernel_gid32_t; -typedef unsigned short __kernel_old_uid_t; -typedef unsigned short __kernel_old_gid_t; -typedef unsigned short __kernel_old_dev_t; -typedef int __kernel_clockid_t; -typedef int __kernel_timer_t; - -#ifdef __GNUC__ -typedef long long __kernel_loff_t; +#ifndef ___ASM_SPARC_POSIX_TYPES_H +#define ___ASM_SPARC_POSIX_TYPES_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -typedef struct { - int val[2]; -} __kernel_fsid_t; - -#if defined(__KERNEL__) - -#undef __FD_SET -static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - fdsetp->fds_bits[_tmp] |= (1UL<<_rem); -} - -#undef __FD_CLR -static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem); -} - -#undef __FD_ISSET -static inline int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0; -} - -/* - * This will unroll the loop for the normal constant cases (8 or 32 longs, - * for 256 and 1024-bit fd_sets respectively) - */ -#undef __FD_ZERO -static inline void __FD_ZERO(__kernel_fd_set *p) -{ - unsigned long *tmp = p->fds_bits; - int i; - - if (__builtin_constant_p(__FDSET_LONGS)) { - switch (__FDSET_LONGS) { - case 32: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; - tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; - tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; - tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0; - tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0; - tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0; - tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0; - return; - case 16: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; - tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; - tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; - return; - case 8: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; - return; - case 4: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - return; - } - } - i = __FDSET_LONGS; - while (i) { - i--; - *tmp = 0; - tmp++; - } -} - -#endif /* defined(__KERNEL__) */ - -#endif /* !(__ARCH_SPARC_POSIX_TYPES_H) */ diff --git a/include/asm-sparc/posix_types_32.h b/include/asm-sparc/posix_types_32.h new file mode 100644 index 000000000000..6bb6eb1ca0f2 --- /dev/null +++ b/include/asm-sparc/posix_types_32.h @@ -0,0 +1,118 @@ +#ifndef __ARCH_SPARC_POSIX_TYPES_H +#define __ARCH_SPARC_POSIX_TYPES_H + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned int __kernel_size_t; +typedef int __kernel_ssize_t; +typedef long int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned short __kernel_uid_t; +typedef unsigned short __kernel_gid_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_umode_t; +typedef short __kernel_nlink_t; +typedef long __kernel_daddr_t; +typedef long __kernel_off_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; +typedef unsigned short __kernel_old_dev_t; +typedef int __kernel_clockid_t; +typedef int __kernel_timer_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { + int val[2]; +} __kernel_fsid_t; + +#if defined(__KERNEL__) + +#undef __FD_SET +static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + fdsetp->fds_bits[_tmp] |= (1UL<<_rem); +} + +#undef __FD_CLR +static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem); +} + +#undef __FD_ISSET +static inline int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0; +} + +/* + * This will unroll the loop for the normal constant cases (8 or 32 longs, + * for 256 and 1024-bit fd_sets respectively) + */ +#undef __FD_ZERO +static inline void __FD_ZERO(__kernel_fd_set *p) +{ + unsigned long *tmp = p->fds_bits; + int i; + + if (__builtin_constant_p(__FDSET_LONGS)) { + switch (__FDSET_LONGS) { + case 32: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; + tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; + tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; + tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0; + tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0; + tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0; + tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0; + return; + case 16: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; + tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; + tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; + return; + case 8: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; + return; + case 4: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + return; + } + } + i = __FDSET_LONGS; + while (i) { + i--; + *tmp = 0; + tmp++; + } +} + +#endif /* defined(__KERNEL__) */ + +#endif /* !(__ARCH_SPARC_POSIX_TYPES_H) */ diff --git a/include/asm-sparc/posix_types_64.h b/include/asm-sparc/posix_types_64.h new file mode 100644 index 000000000000..ba8f93295763 --- /dev/null +++ b/include/asm-sparc/posix_types_64.h @@ -0,0 +1,122 @@ +#ifndef __ARCH_SPARC64_POSIX_TYPES_H +#define __ARCH_SPARC64_POSIX_TYPES_H + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned long __kernel_size_t; +typedef long __kernel_ssize_t; +typedef long __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_clock_t; +typedef int __kernel_pid_t; +typedef int __kernel_ipc_pid_t; +typedef unsigned int __kernel_uid_t; +typedef unsigned int __kernel_gid_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned int __kernel_mode_t; +typedef unsigned short __kernel_umode_t; +typedef unsigned int __kernel_nlink_t; +typedef int __kernel_daddr_t; +typedef long __kernel_off_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef int __kernel_clockid_t; +typedef int __kernel_timer_t; + +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; +typedef __kernel_uid_t __kernel_uid32_t; +typedef __kernel_gid_t __kernel_gid32_t; + +typedef unsigned int __kernel_old_dev_t; + +/* Note this piece of asymmetry from the v9 ABI. */ +typedef int __kernel_suseconds_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { + int val[2]; +} __kernel_fsid_t; + +#if defined(__KERNEL__) + +#undef __FD_SET +static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + fdsetp->fds_bits[_tmp] |= (1UL<<_rem); +} + +#undef __FD_CLR +static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem); +} + +#undef __FD_ISSET +static inline int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0; +} + +/* + * This will unroll the loop for the normal constant cases (8 or 32 longs, + * for 256 and 1024-bit fd_sets respectively) + */ +#undef __FD_ZERO +static inline void __FD_ZERO(__kernel_fd_set *p) +{ + unsigned long *tmp = p->fds_bits; + int i; + + if (__builtin_constant_p(__FDSET_LONGS)) { + switch (__FDSET_LONGS) { + case 32: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; + tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; + tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; + tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0; + tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0; + tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0; + tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0; + return; + case 16: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; + tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; + tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; + return; + case 8: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; + return; + case 4: + tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; + return; + } + } + i = __FDSET_LONGS; + while (i) { + i--; + *tmp = 0; + tmp++; + } +} + +#endif /* defined(__KERNEL__) */ + +#endif /* !(__ARCH_SPARC64_POSIX_TYPES_H) */ diff --git a/include/asm-sparc/processor.h b/include/asm-sparc/processor.h index 8898efbbbe07..11a66bb02eaa 100644 --- a/include/asm-sparc/processor.h +++ b/include/asm-sparc/processor.h @@ -1,128 +1,8 @@ -/* include/asm-sparc/processor.h - * - * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __ASM_SPARC_PROCESSOR_H -#define __ASM_SPARC_PROCESSOR_H - -/* - * Sparc32 implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ void *pc; __asm__("sethi %%hi(1f), %0; or %0, %%lo(1f), %0;\n1:" : "=r" (pc)); pc; }) - -#include -#include -#include -#include -#include -#include - -/* - * The sparc has no problems with write protection - */ -#define wp_works_ok 1 -#define wp_works_ok__is_a_macro /* for versions in ksyms.c */ - -/* Whee, this is STACK_TOP + PAGE_SIZE and the lowest kernel address too... - * That one page is used to protect kernel from intruders, so that - * we can make our access_ok test faster - */ -#define TASK_SIZE PAGE_OFFSET -#ifdef __KERNEL__ -#define STACK_TOP (PAGE_OFFSET - PAGE_SIZE) -#define STACK_TOP_MAX STACK_TOP -#endif /* __KERNEL__ */ - -struct task_struct; - -#ifdef __KERNEL__ -struct fpq { - unsigned long *insn_addr; - unsigned long insn; -}; +#ifndef ___ASM_SPARC_PROCESSOR_H +#define ___ASM_SPARC_PROCESSOR_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include #endif - -typedef struct { - int seg; -} mm_segment_t; - -/* The Sparc processor specific thread struct. */ -struct thread_struct { - struct pt_regs *kregs; - unsigned int _pad1; - - /* Special child fork kpsr/kwim values. */ - unsigned long fork_kpsr __attribute__ ((aligned (8))); - unsigned long fork_kwim; - - /* Floating point regs */ - unsigned long float_regs[32] __attribute__ ((aligned (8))); - unsigned long fsr; - unsigned long fpqdepth; - struct fpq fpqueue[16]; - unsigned long flags; - mm_segment_t current_ds; -}; - -#define SPARC_FLAG_KTHREAD 0x1 /* task is a kernel thread */ -#define SPARC_FLAG_UNALIGNED 0x2 /* is allowed to do unaligned accesses */ - -#define INIT_THREAD { \ - .flags = SPARC_FLAG_KTHREAD, \ - .current_ds = KERNEL_DS, \ -} - -/* Return saved PC of a blocked thread. */ -extern unsigned long thread_saved_pc(struct task_struct *t); - -/* Do necessary setup to start up a newly executed thread. */ -static inline void start_thread(struct pt_regs * regs, unsigned long pc, - unsigned long sp) -{ - register unsigned long zero asm("g1"); - - regs->psr = (regs->psr & (PSR_CWP)) | PSR_S; - regs->pc = ((pc & (~3)) - 4); - regs->npc = regs->pc + 4; - regs->y = 0; - zero = 0; - __asm__ __volatile__("std\t%%g0, [%0 + %3 + 0x00]\n\t" - "std\t%%g0, [%0 + %3 + 0x08]\n\t" - "std\t%%g0, [%0 + %3 + 0x10]\n\t" - "std\t%%g0, [%0 + %3 + 0x18]\n\t" - "std\t%%g0, [%0 + %3 + 0x20]\n\t" - "std\t%%g0, [%0 + %3 + 0x28]\n\t" - "std\t%%g0, [%0 + %3 + 0x30]\n\t" - "st\t%1, [%0 + %3 + 0x38]\n\t" - "st\t%%g0, [%0 + %3 + 0x3c]" - : /* no outputs */ - : "r" (regs), - "r" (sp - sizeof(struct reg_window)), - "r" (zero), - "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0])) - : "memory"); -} - -/* Free all resources held by a thread. */ -#define release_thread(tsk) do { } while(0) -extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - -/* Prepare to copy thread state - unlazy all lazy status */ -#define prepare_to_copy(tsk) do { } while (0) - -extern unsigned long get_wchan(struct task_struct *); - -#define KSTK_EIP(tsk) ((tsk)->thread.kregs->pc) -#define KSTK_ESP(tsk) ((tsk)->thread.kregs->u_regs[UREG_FP]) - -#ifdef __KERNEL__ - -extern struct task_struct *last_task_used_math; - -#define cpu_relax() barrier() - #endif - -#endif /* __ASM_SPARC_PROCESSOR_H */ diff --git a/include/asm-sparc/processor_32.h b/include/asm-sparc/processor_32.h new file mode 100644 index 000000000000..562c0d69c537 --- /dev/null +++ b/include/asm-sparc/processor_32.h @@ -0,0 +1,128 @@ +/* include/asm-sparc/processor.h + * + * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef __ASM_SPARC_PROCESSOR_H +#define __ASM_SPARC_PROCESSOR_H + +/* + * Sparc32 implementation of macro that returns current + * instruction pointer ("program counter"). + */ +#define current_text_addr() ({ void *pc; __asm__("sethi %%hi(1f), %0; or %0, %%lo(1f), %0;\n1:" : "=r" (pc)); pc; }) + +#include +#include +#include +#include +#include +#include + +/* + * The sparc has no problems with write protection + */ +#define wp_works_ok 1 +#define wp_works_ok__is_a_macro /* for versions in ksyms.c */ + +/* Whee, this is STACK_TOP + PAGE_SIZE and the lowest kernel address too... + * That one page is used to protect kernel from intruders, so that + * we can make our access_ok test faster + */ +#define TASK_SIZE PAGE_OFFSET +#ifdef __KERNEL__ +#define STACK_TOP (PAGE_OFFSET - PAGE_SIZE) +#define STACK_TOP_MAX STACK_TOP +#endif /* __KERNEL__ */ + +struct task_struct; + +#ifdef __KERNEL__ +struct fpq { + unsigned long *insn_addr; + unsigned long insn; +}; +#endif + +typedef struct { + int seg; +} mm_segment_t; + +/* The Sparc processor specific thread struct. */ +struct thread_struct { + struct pt_regs *kregs; + unsigned int _pad1; + + /* Special child fork kpsr/kwim values. */ + unsigned long fork_kpsr __attribute__ ((aligned (8))); + unsigned long fork_kwim; + + /* Floating point regs */ + unsigned long float_regs[32] __attribute__ ((aligned (8))); + unsigned long fsr; + unsigned long fpqdepth; + struct fpq fpqueue[16]; + unsigned long flags; + mm_segment_t current_ds; +}; + +#define SPARC_FLAG_KTHREAD 0x1 /* task is a kernel thread */ +#define SPARC_FLAG_UNALIGNED 0x2 /* is allowed to do unaligned accesses */ + +#define INIT_THREAD { \ + .flags = SPARC_FLAG_KTHREAD, \ + .current_ds = KERNEL_DS, \ +} + +/* Return saved PC of a blocked thread. */ +extern unsigned long thread_saved_pc(struct task_struct *t); + +/* Do necessary setup to start up a newly executed thread. */ +static inline void start_thread(struct pt_regs * regs, unsigned long pc, + unsigned long sp) +{ + register unsigned long zero asm("g1"); + + regs->psr = (regs->psr & (PSR_CWP)) | PSR_S; + regs->pc = ((pc & (~3)) - 4); + regs->npc = regs->pc + 4; + regs->y = 0; + zero = 0; + __asm__ __volatile__("std\t%%g0, [%0 + %3 + 0x00]\n\t" + "std\t%%g0, [%0 + %3 + 0x08]\n\t" + "std\t%%g0, [%0 + %3 + 0x10]\n\t" + "std\t%%g0, [%0 + %3 + 0x18]\n\t" + "std\t%%g0, [%0 + %3 + 0x20]\n\t" + "std\t%%g0, [%0 + %3 + 0x28]\n\t" + "std\t%%g0, [%0 + %3 + 0x30]\n\t" + "st\t%1, [%0 + %3 + 0x38]\n\t" + "st\t%%g0, [%0 + %3 + 0x3c]" + : /* no outputs */ + : "r" (regs), + "r" (sp - sizeof(struct reg_window)), + "r" (zero), + "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0])) + : "memory"); +} + +/* Free all resources held by a thread. */ +#define release_thread(tsk) do { } while(0) +extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); + +/* Prepare to copy thread state - unlazy all lazy status */ +#define prepare_to_copy(tsk) do { } while (0) + +extern unsigned long get_wchan(struct task_struct *); + +#define KSTK_EIP(tsk) ((tsk)->thread.kregs->pc) +#define KSTK_ESP(tsk) ((tsk)->thread.kregs->u_regs[UREG_FP]) + +#ifdef __KERNEL__ + +extern struct task_struct *last_task_used_math; + +#define cpu_relax() barrier() + +#endif + +#endif /* __ASM_SPARC_PROCESSOR_H */ diff --git a/include/asm-sparc/processor_64.h b/include/asm-sparc/processor_64.h new file mode 100644 index 000000000000..70d42801a0d2 --- /dev/null +++ b/include/asm-sparc/processor_64.h @@ -0,0 +1,237 @@ +/* + * include/asm-sparc64/processor.h + * + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef __ASM_SPARC64_PROCESSOR_H +#define __ASM_SPARC64_PROCESSOR_H + +/* + * Sparc64 implementation of macro that returns current + * instruction pointer ("program counter"). + */ +#define current_text_addr() ({ void *pc; __asm__("rd %%pc, %0" : "=r" (pc)); pc; }) + +#include +#include +#include +#include + +/* The sparc has no problems with write protection */ +#define wp_works_ok 1 +#define wp_works_ok__is_a_macro /* for versions in ksyms.c */ + +/* + * User lives in his very own context, and cannot reference us. Note + * that TASK_SIZE is a misnomer, it really gives maximum user virtual + * address that the kernel will allocate out. + * + * XXX No longer using virtual page tables, kill this upper limit... + */ +#define VA_BITS 44 +#ifndef __ASSEMBLY__ +#define VPTE_SIZE (1UL << (VA_BITS - PAGE_SHIFT + 3)) +#else +#define VPTE_SIZE (1 << (VA_BITS - PAGE_SHIFT + 3)) +#endif + +#define TASK_SIZE ((unsigned long)-VPTE_SIZE) +#define TASK_SIZE_OF(tsk) \ + (test_tsk_thread_flag(tsk,TIF_32BIT) ? \ + (1UL << 32UL) : TASK_SIZE) +#ifdef __KERNEL__ + +#define STACK_TOP32 ((1UL << 32UL) - PAGE_SIZE) +#define STACK_TOP64 (0x0000080000000000UL - (1UL << 32UL)) + +#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \ + STACK_TOP32 : STACK_TOP64) + +#define STACK_TOP_MAX STACK_TOP64 + +#endif + +#ifndef __ASSEMBLY__ + +typedef struct { + unsigned char seg; +} mm_segment_t; + +/* The Sparc processor specific thread struct. */ +/* XXX This should die, everything can go into thread_info now. */ +struct thread_struct { +#ifdef CONFIG_DEBUG_SPINLOCK + /* How many spinlocks held by this thread. + * Used with spin lock debugging to catch tasks + * sleeping illegally with locks held. + */ + int smp_lock_count; + unsigned int smp_lock_pc; +#else + int dummy; /* f'in gcc bug... */ +#endif +}; + +#endif /* !(__ASSEMBLY__) */ + +#ifndef CONFIG_DEBUG_SPINLOCK +#define INIT_THREAD { \ + 0, \ +} +#else /* CONFIG_DEBUG_SPINLOCK */ +#define INIT_THREAD { \ +/* smp_lock_count, smp_lock_pc, */ \ + 0, 0, \ +} +#endif /* !(CONFIG_DEBUG_SPINLOCK) */ + +#ifndef __ASSEMBLY__ + +#include + +/* Return saved PC of a blocked thread. */ +struct task_struct; +extern unsigned long thread_saved_pc(struct task_struct *); + +/* On Uniprocessor, even in RMO processes see TSO semantics */ +#ifdef CONFIG_SMP +#define TSTATE_INITIAL_MM TSTATE_TSO +#else +#define TSTATE_INITIAL_MM TSTATE_RMO +#endif + +/* Do necessary setup to start up a newly executed thread. */ +#define start_thread(regs, pc, sp) \ +do { \ + unsigned long __asi = ASI_PNF; \ + regs->tstate = (regs->tstate & (TSTATE_CWP)) | (TSTATE_INITIAL_MM|TSTATE_IE) | (__asi << 24UL); \ + regs->tpc = ((pc & (~3)) - 4); \ + regs->tnpc = regs->tpc + 4; \ + regs->y = 0; \ + set_thread_wstate(1 << 3); \ + if (current_thread_info()->utraps) { \ + if (*(current_thread_info()->utraps) < 2) \ + kfree(current_thread_info()->utraps); \ + else \ + (*(current_thread_info()->utraps))--; \ + current_thread_info()->utraps = NULL; \ + } \ + __asm__ __volatile__( \ + "stx %%g0, [%0 + %2 + 0x00]\n\t" \ + "stx %%g0, [%0 + %2 + 0x08]\n\t" \ + "stx %%g0, [%0 + %2 + 0x10]\n\t" \ + "stx %%g0, [%0 + %2 + 0x18]\n\t" \ + "stx %%g0, [%0 + %2 + 0x20]\n\t" \ + "stx %%g0, [%0 + %2 + 0x28]\n\t" \ + "stx %%g0, [%0 + %2 + 0x30]\n\t" \ + "stx %%g0, [%0 + %2 + 0x38]\n\t" \ + "stx %%g0, [%0 + %2 + 0x40]\n\t" \ + "stx %%g0, [%0 + %2 + 0x48]\n\t" \ + "stx %%g0, [%0 + %2 + 0x50]\n\t" \ + "stx %%g0, [%0 + %2 + 0x58]\n\t" \ + "stx %%g0, [%0 + %2 + 0x60]\n\t" \ + "stx %%g0, [%0 + %2 + 0x68]\n\t" \ + "stx %1, [%0 + %2 + 0x70]\n\t" \ + "stx %%g0, [%0 + %2 + 0x78]\n\t" \ + "wrpr %%g0, (1 << 3), %%wstate\n\t" \ + : \ + : "r" (regs), "r" (sp - sizeof(struct reg_window) - STACK_BIAS), \ + "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \ +} while (0) + +#define start_thread32(regs, pc, sp) \ +do { \ + unsigned long __asi = ASI_PNF; \ + pc &= 0x00000000ffffffffUL; \ + sp &= 0x00000000ffffffffUL; \ + regs->tstate = (regs->tstate & (TSTATE_CWP))|(TSTATE_INITIAL_MM|TSTATE_IE|TSTATE_AM) | (__asi << 24UL); \ + regs->tpc = ((pc & (~3)) - 4); \ + regs->tnpc = regs->tpc + 4; \ + regs->y = 0; \ + set_thread_wstate(2 << 3); \ + if (current_thread_info()->utraps) { \ + if (*(current_thread_info()->utraps) < 2) \ + kfree(current_thread_info()->utraps); \ + else \ + (*(current_thread_info()->utraps))--; \ + current_thread_info()->utraps = NULL; \ + } \ + __asm__ __volatile__( \ + "stx %%g0, [%0 + %2 + 0x00]\n\t" \ + "stx %%g0, [%0 + %2 + 0x08]\n\t" \ + "stx %%g0, [%0 + %2 + 0x10]\n\t" \ + "stx %%g0, [%0 + %2 + 0x18]\n\t" \ + "stx %%g0, [%0 + %2 + 0x20]\n\t" \ + "stx %%g0, [%0 + %2 + 0x28]\n\t" \ + "stx %%g0, [%0 + %2 + 0x30]\n\t" \ + "stx %%g0, [%0 + %2 + 0x38]\n\t" \ + "stx %%g0, [%0 + %2 + 0x40]\n\t" \ + "stx %%g0, [%0 + %2 + 0x48]\n\t" \ + "stx %%g0, [%0 + %2 + 0x50]\n\t" \ + "stx %%g0, [%0 + %2 + 0x58]\n\t" \ + "stx %%g0, [%0 + %2 + 0x60]\n\t" \ + "stx %%g0, [%0 + %2 + 0x68]\n\t" \ + "stx %1, [%0 + %2 + 0x70]\n\t" \ + "stx %%g0, [%0 + %2 + 0x78]\n\t" \ + "wrpr %%g0, (2 << 3), %%wstate\n\t" \ + : \ + : "r" (regs), "r" (sp - sizeof(struct reg_window32)), \ + "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \ +} while (0) + +/* Free all resources held by a thread. */ +#define release_thread(tsk) do { } while (0) + +/* Prepare to copy thread state - unlazy all lazy status */ +#define prepare_to_copy(tsk) do { } while (0) + +extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); + +extern unsigned long get_wchan(struct task_struct *task); + +#define task_pt_regs(tsk) (task_thread_info(tsk)->kregs) +#define KSTK_EIP(tsk) (task_pt_regs(tsk)->tpc) +#define KSTK_ESP(tsk) (task_pt_regs(tsk)->u_regs[UREG_FP]) + +#define cpu_relax() barrier() + +/* Prefetch support. This is tuned for UltraSPARC-III and later. + * UltraSPARC-I will treat these as nops, and UltraSPARC-II has + * a shallower prefetch queue than later chips. + */ +#define ARCH_HAS_PREFETCH +#define ARCH_HAS_PREFETCHW +#define ARCH_HAS_SPINLOCK_PREFETCH + +static inline void prefetch(const void *x) +{ + /* We do not use the read prefetch mnemonic because that + * prefetches into the prefetch-cache which only is accessible + * by floating point operations in UltraSPARC-III and later. + * By contrast, "#one_write" prefetches into the L2 cache + * in shared state. + */ + __asm__ __volatile__("prefetch [%0], #one_write" + : /* no outputs */ + : "r" (x)); +} + +static inline void prefetchw(const void *x) +{ + /* The most optimal prefetch to use for writes is + * "#n_writes". This brings the cacheline into the + * L2 cache in "owned" state. + */ + __asm__ __volatile__("prefetch [%0], #n_writes" + : /* no outputs */ + : "r" (x)); +} + +#define spin_lock_prefetch(x) prefetchw(x) + +#define HAVE_ARCH_PICK_MMAP_LAYOUT + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__ASM_SPARC64_PROCESSOR_H) */ diff --git a/include/asm-sparc/ptrace.h b/include/asm-sparc/ptrace.h index 11f3bc2bb3f5..f36ab6c30ff3 100644 --- a/include/asm-sparc/ptrace.h +++ b/include/asm-sparc/ptrace.h @@ -1,175 +1,8 @@ -#ifndef _SPARC_PTRACE_H -#define _SPARC_PTRACE_H - -#include - -/* This struct defines the way the registers are stored on the - * stack during a system call and basically all traps. - */ - -#ifndef __ASSEMBLY__ - -#include - -struct pt_regs { - unsigned long psr; - unsigned long pc; - unsigned long npc; - unsigned long y; - unsigned long u_regs[16]; /* globals and ins */ -}; - -#define UREG_G0 0 -#define UREG_G1 1 -#define UREG_G2 2 -#define UREG_G3 3 -#define UREG_G4 4 -#define UREG_G5 5 -#define UREG_G6 6 -#define UREG_G7 7 -#define UREG_I0 8 -#define UREG_I1 9 -#define UREG_I2 10 -#define UREG_I3 11 -#define UREG_I4 12 -#define UREG_I5 13 -#define UREG_I6 14 -#define UREG_I7 15 -#define UREG_WIM UREG_G0 -#define UREG_FADDR UREG_G0 -#define UREG_FP UREG_I6 -#define UREG_RETPC UREG_I7 - -static inline bool pt_regs_is_syscall(struct pt_regs *regs) -{ - return (regs->psr & PSR_SYSCALL); -} - -static inline bool pt_regs_clear_syscall(struct pt_regs *regs) -{ - return (regs->psr &= ~PSR_SYSCALL); -} - -/* A register window */ -struct reg_window { - unsigned long locals[8]; - unsigned long ins[8]; -}; - -/* A Sparc stack frame */ -struct sparc_stackf { - unsigned long locals[8]; - unsigned long ins[6]; - struct sparc_stackf *fp; - unsigned long callers_pc; - char *structptr; - unsigned long xargs[6]; - unsigned long xxargs[1]; -}; - -#define TRACEREG_SZ sizeof(struct pt_regs) -#define STACKFRAME_SZ sizeof(struct sparc_stackf) - -#ifdef __KERNEL__ - -#define user_mode(regs) (!((regs)->psr & PSR_PS)) -#define instruction_pointer(regs) ((regs)->pc) -unsigned long profile_pc(struct pt_regs *); -extern void show_regs(struct pt_regs *); +#ifndef ___ASM_SPARC_PTRACE_H +#define ___ASM_SPARC_PTRACE_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include #endif - -#else /* __ASSEMBLY__ */ -/* For assembly code. */ -#define TRACEREG_SZ 0x50 -#define STACKFRAME_SZ 0x60 #endif - -/* - * The asm-offsets.h is a generated file, so we cannot include it. - * It may be OK for glibc headers, but it's utterly pointless for C code. - * The assembly code using those offsets has to include it explicitly. - */ -/* #include */ - -/* These are for pt_regs. */ -#define PT_PSR 0x0 -#define PT_PC 0x4 -#define PT_NPC 0x8 -#define PT_Y 0xc -#define PT_G0 0x10 -#define PT_WIM PT_G0 -#define PT_G1 0x14 -#define PT_G2 0x18 -#define PT_G3 0x1c -#define PT_G4 0x20 -#define PT_G5 0x24 -#define PT_G6 0x28 -#define PT_G7 0x2c -#define PT_I0 0x30 -#define PT_I1 0x34 -#define PT_I2 0x38 -#define PT_I3 0x3c -#define PT_I4 0x40 -#define PT_I5 0x44 -#define PT_I6 0x48 -#define PT_FP PT_I6 -#define PT_I7 0x4c - -/* Reg_window offsets */ -#define RW_L0 0x00 -#define RW_L1 0x04 -#define RW_L2 0x08 -#define RW_L3 0x0c -#define RW_L4 0x10 -#define RW_L5 0x14 -#define RW_L6 0x18 -#define RW_L7 0x1c -#define RW_I0 0x20 -#define RW_I1 0x24 -#define RW_I2 0x28 -#define RW_I3 0x2c -#define RW_I4 0x30 -#define RW_I5 0x34 -#define RW_I6 0x38 -#define RW_I7 0x3c - -/* Stack_frame offsets */ -#define SF_L0 0x00 -#define SF_L1 0x04 -#define SF_L2 0x08 -#define SF_L3 0x0c -#define SF_L4 0x10 -#define SF_L5 0x14 -#define SF_L6 0x18 -#define SF_L7 0x1c -#define SF_I0 0x20 -#define SF_I1 0x24 -#define SF_I2 0x28 -#define SF_I3 0x2c -#define SF_I4 0x30 -#define SF_I5 0x34 -#define SF_FP 0x38 -#define SF_PC 0x3c -#define SF_RETP 0x40 -#define SF_XARG0 0x44 -#define SF_XARG1 0x48 -#define SF_XARG2 0x4c -#define SF_XARG3 0x50 -#define SF_XARG4 0x54 -#define SF_XARG5 0x58 -#define SF_XXARG 0x5c - -/* Stuff for the ptrace system call */ -#define PTRACE_SPARC_DETACH 11 -#define PTRACE_GETREGS 12 -#define PTRACE_SETREGS 13 -#define PTRACE_GETFPREGS 14 -#define PTRACE_SETFPREGS 15 -#define PTRACE_READDATA 16 -#define PTRACE_WRITEDATA 17 -#define PTRACE_READTEXT 18 -#define PTRACE_WRITETEXT 19 -#define PTRACE_GETFPAREGS 20 -#define PTRACE_SETFPAREGS 21 - -#endif /* !(_SPARC_PTRACE_H) */ diff --git a/include/asm-sparc/ptrace_32.h b/include/asm-sparc/ptrace_32.h new file mode 100644 index 000000000000..0401cc7ec38e --- /dev/null +++ b/include/asm-sparc/ptrace_32.h @@ -0,0 +1,175 @@ +#ifndef _SPARC_PTRACE_H +#define _SPARC_PTRACE_H + +#include + +/* This struct defines the way the registers are stored on the + * stack during a system call and basically all traps. + */ + +#ifndef __ASSEMBLY__ + +#include + +struct pt_regs { + unsigned long psr; + unsigned long pc; + unsigned long npc; + unsigned long y; + unsigned long u_regs[16]; /* globals and ins */ +}; + +#define UREG_G0 0 +#define UREG_G1 1 +#define UREG_G2 2 +#define UREG_G3 3 +#define UREG_G4 4 +#define UREG_G5 5 +#define UREG_G6 6 +#define UREG_G7 7 +#define UREG_I0 8 +#define UREG_I1 9 +#define UREG_I2 10 +#define UREG_I3 11 +#define UREG_I4 12 +#define UREG_I5 13 +#define UREG_I6 14 +#define UREG_I7 15 +#define UREG_WIM UREG_G0 +#define UREG_FADDR UREG_G0 +#define UREG_FP UREG_I6 +#define UREG_RETPC UREG_I7 + +static inline bool pt_regs_is_syscall(struct pt_regs *regs) +{ + return (regs->psr & PSR_SYSCALL); +} + +static inline bool pt_regs_clear_syscall(struct pt_regs *regs) +{ + return (regs->psr &= ~PSR_SYSCALL); +} + +/* A register window */ +struct reg_window { + unsigned long locals[8]; + unsigned long ins[8]; +}; + +/* A Sparc stack frame */ +struct sparc_stackf { + unsigned long locals[8]; + unsigned long ins[6]; + struct sparc_stackf *fp; + unsigned long callers_pc; + char *structptr; + unsigned long xargs[6]; + unsigned long xxargs[1]; +}; + +#define TRACEREG_SZ sizeof(struct pt_regs) +#define STACKFRAME_SZ sizeof(struct sparc_stackf) + +#ifdef __KERNEL__ + +#define user_mode(regs) (!((regs)->psr & PSR_PS)) +#define instruction_pointer(regs) ((regs)->pc) +unsigned long profile_pc(struct pt_regs *); +extern void show_regs(struct pt_regs *); +#endif + +#else /* __ASSEMBLY__ */ +/* For assembly code. */ +#define TRACEREG_SZ 0x50 +#define STACKFRAME_SZ 0x60 +#endif + +/* + * The asm-offsets.h is a generated file, so we cannot include it. + * It may be OK for glibc headers, but it's utterly pointless for C code. + * The assembly code using those offsets has to include it explicitly. + */ +/* #include */ + +/* These are for pt_regs. */ +#define PT_PSR 0x0 +#define PT_PC 0x4 +#define PT_NPC 0x8 +#define PT_Y 0xc +#define PT_G0 0x10 +#define PT_WIM PT_G0 +#define PT_G1 0x14 +#define PT_G2 0x18 +#define PT_G3 0x1c +#define PT_G4 0x20 +#define PT_G5 0x24 +#define PT_G6 0x28 +#define PT_G7 0x2c +#define PT_I0 0x30 +#define PT_I1 0x34 +#define PT_I2 0x38 +#define PT_I3 0x3c +#define PT_I4 0x40 +#define PT_I5 0x44 +#define PT_I6 0x48 +#define PT_FP PT_I6 +#define PT_I7 0x4c + +/* Reg_window offsets */ +#define RW_L0 0x00 +#define RW_L1 0x04 +#define RW_L2 0x08 +#define RW_L3 0x0c +#define RW_L4 0x10 +#define RW_L5 0x14 +#define RW_L6 0x18 +#define RW_L7 0x1c +#define RW_I0 0x20 +#define RW_I1 0x24 +#define RW_I2 0x28 +#define RW_I3 0x2c +#define RW_I4 0x30 +#define RW_I5 0x34 +#define RW_I6 0x38 +#define RW_I7 0x3c + +/* Stack_frame offsets */ +#define SF_L0 0x00 +#define SF_L1 0x04 +#define SF_L2 0x08 +#define SF_L3 0x0c +#define SF_L4 0x10 +#define SF_L5 0x14 +#define SF_L6 0x18 +#define SF_L7 0x1c +#define SF_I0 0x20 +#define SF_I1 0x24 +#define SF_I2 0x28 +#define SF_I3 0x2c +#define SF_I4 0x30 +#define SF_I5 0x34 +#define SF_FP 0x38 +#define SF_PC 0x3c +#define SF_RETP 0x40 +#define SF_XARG0 0x44 +#define SF_XARG1 0x48 +#define SF_XARG2 0x4c +#define SF_XARG3 0x50 +#define SF_XARG4 0x54 +#define SF_XARG5 0x58 +#define SF_XXARG 0x5c + +/* Stuff for the ptrace system call */ +#define PTRACE_SPARC_DETACH 11 +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 +#define PTRACE_READDATA 16 +#define PTRACE_WRITEDATA 17 +#define PTRACE_READTEXT 18 +#define PTRACE_WRITETEXT 19 +#define PTRACE_GETFPAREGS 20 +#define PTRACE_SETFPAREGS 21 + +#endif /* !(_SPARC_PTRACE_H) */ diff --git a/include/asm-sparc/ptrace_64.h b/include/asm-sparc/ptrace_64.h new file mode 100644 index 000000000000..a682e66d5c4a --- /dev/null +++ b/include/asm-sparc/ptrace_64.h @@ -0,0 +1,346 @@ +#ifndef _SPARC64_PTRACE_H +#define _SPARC64_PTRACE_H + +#include + +/* This struct defines the way the registers are stored on the + * stack during a system call and basically all traps. + */ + +/* This magic value must have the low 9 bits clear, + * as that is where we encode the %tt value, see below. + */ +#define PT_REGS_MAGIC 0x57ac6c00 + +#ifndef __ASSEMBLY__ + +#include + +struct pt_regs { + unsigned long u_regs[16]; /* globals and ins */ + unsigned long tstate; + unsigned long tpc; + unsigned long tnpc; + unsigned int y; + + /* We encode a magic number, PT_REGS_MAGIC, along + * with the %tt (trap type) register value at trap + * entry time. The magic number allows us to identify + * accurately a trap stack frame in the stack + * unwinder, and the %tt value allows us to test + * things like "in a system call" etc. for an arbitray + * process. + * + * The PT_REGS_MAGIC is choosen such that it can be + * loaded completely using just a sethi instruction. + */ + unsigned int magic; +}; + +static inline int pt_regs_trap_type(struct pt_regs *regs) +{ + return regs->magic & 0x1ff; +} + +static inline bool pt_regs_is_syscall(struct pt_regs *regs) +{ + return (regs->tstate & TSTATE_SYSCALL); +} + +static inline bool pt_regs_clear_syscall(struct pt_regs *regs) +{ + return (regs->tstate &= ~TSTATE_SYSCALL); +} + +struct pt_regs32 { + unsigned int psr; + unsigned int pc; + unsigned int npc; + unsigned int y; + unsigned int u_regs[16]; /* globals and ins */ +}; + +#define UREG_G0 0 +#define UREG_G1 1 +#define UREG_G2 2 +#define UREG_G3 3 +#define UREG_G4 4 +#define UREG_G5 5 +#define UREG_G6 6 +#define UREG_G7 7 +#define UREG_I0 8 +#define UREG_I1 9 +#define UREG_I2 10 +#define UREG_I3 11 +#define UREG_I4 12 +#define UREG_I5 13 +#define UREG_I6 14 +#define UREG_I7 15 +#define UREG_FP UREG_I6 +#define UREG_RETPC UREG_I7 + +/* A V9 register window */ +struct reg_window { + unsigned long locals[8]; + unsigned long ins[8]; +}; + +/* A 32-bit register window. */ +struct reg_window32 { + unsigned int locals[8]; + unsigned int ins[8]; +}; + +/* A V9 Sparc stack frame */ +struct sparc_stackf { + unsigned long locals[8]; + unsigned long ins[6]; + struct sparc_stackf *fp; + unsigned long callers_pc; + char *structptr; + unsigned long xargs[6]; + unsigned long xxargs[1]; +}; + +/* A 32-bit Sparc stack frame */ +struct sparc_stackf32 { + unsigned int locals[8]; + unsigned int ins[6]; + unsigned int fp; + unsigned int callers_pc; + unsigned int structptr; + unsigned int xargs[6]; + unsigned int xxargs[1]; +}; + +struct sparc_trapf { + unsigned long locals[8]; + unsigned long ins[8]; + unsigned long _unused; + struct pt_regs *regs; +}; + +#define TRACEREG_SZ sizeof(struct pt_regs) +#define STACKFRAME_SZ sizeof(struct sparc_stackf) + +#define TRACEREG32_SZ sizeof(struct pt_regs32) +#define STACKFRAME32_SZ sizeof(struct sparc_stackf32) + +#ifdef __KERNEL__ + +struct global_reg_snapshot { + unsigned long tstate; + unsigned long tpc; + unsigned long tnpc; + unsigned long o7; + unsigned long i7; + struct thread_info *thread; + unsigned long pad1; + unsigned long pad2; +}; + +#define __ARCH_WANT_COMPAT_SYS_PTRACE + +#define force_successful_syscall_return() \ +do { current_thread_info()->syscall_noerror = 1; \ +} while (0) +#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV)) +#define instruction_pointer(regs) ((regs)->tpc) +#define regs_return_value(regs) ((regs)->u_regs[UREG_I0]) +#ifdef CONFIG_SMP +extern unsigned long profile_pc(struct pt_regs *); +#else +#define profile_pc(regs) instruction_pointer(regs) +#endif +extern void show_regs(struct pt_regs *); +extern void __show_regs(struct pt_regs *); +#endif + +#else /* __ASSEMBLY__ */ +/* For assembly code. */ +#define TRACEREG_SZ 0xa0 +#define STACKFRAME_SZ 0xc0 + +#define TRACEREG32_SZ 0x50 +#define STACKFRAME32_SZ 0x60 +#endif + +#ifdef __KERNEL__ +#define STACK_BIAS 2047 +#endif + +/* These are for pt_regs. */ +#define PT_V9_G0 0x00 +#define PT_V9_G1 0x08 +#define PT_V9_G2 0x10 +#define PT_V9_G3 0x18 +#define PT_V9_G4 0x20 +#define PT_V9_G5 0x28 +#define PT_V9_G6 0x30 +#define PT_V9_G7 0x38 +#define PT_V9_I0 0x40 +#define PT_V9_I1 0x48 +#define PT_V9_I2 0x50 +#define PT_V9_I3 0x58 +#define PT_V9_I4 0x60 +#define PT_V9_I5 0x68 +#define PT_V9_I6 0x70 +#define PT_V9_FP PT_V9_I6 +#define PT_V9_I7 0x78 +#define PT_V9_TSTATE 0x80 +#define PT_V9_TPC 0x88 +#define PT_V9_TNPC 0x90 +#define PT_V9_Y 0x98 +#define PT_V9_MAGIC 0x9c +#define PT_TSTATE PT_V9_TSTATE +#define PT_TPC PT_V9_TPC +#define PT_TNPC PT_V9_TNPC + +/* These for pt_regs32. */ +#define PT_PSR 0x0 +#define PT_PC 0x4 +#define PT_NPC 0x8 +#define PT_Y 0xc +#define PT_G0 0x10 +#define PT_WIM PT_G0 +#define PT_G1 0x14 +#define PT_G2 0x18 +#define PT_G3 0x1c +#define PT_G4 0x20 +#define PT_G5 0x24 +#define PT_G6 0x28 +#define PT_G7 0x2c +#define PT_I0 0x30 +#define PT_I1 0x34 +#define PT_I2 0x38 +#define PT_I3 0x3c +#define PT_I4 0x40 +#define PT_I5 0x44 +#define PT_I6 0x48 +#define PT_FP PT_I6 +#define PT_I7 0x4c + +/* Reg_window offsets */ +#define RW_V9_L0 0x00 +#define RW_V9_L1 0x08 +#define RW_V9_L2 0x10 +#define RW_V9_L3 0x18 +#define RW_V9_L4 0x20 +#define RW_V9_L5 0x28 +#define RW_V9_L6 0x30 +#define RW_V9_L7 0x38 +#define RW_V9_I0 0x40 +#define RW_V9_I1 0x48 +#define RW_V9_I2 0x50 +#define RW_V9_I3 0x58 +#define RW_V9_I4 0x60 +#define RW_V9_I5 0x68 +#define RW_V9_I6 0x70 +#define RW_V9_I7 0x78 + +#define RW_L0 0x00 +#define RW_L1 0x04 +#define RW_L2 0x08 +#define RW_L3 0x0c +#define RW_L4 0x10 +#define RW_L5 0x14 +#define RW_L6 0x18 +#define RW_L7 0x1c +#define RW_I0 0x20 +#define RW_I1 0x24 +#define RW_I2 0x28 +#define RW_I3 0x2c +#define RW_I4 0x30 +#define RW_I5 0x34 +#define RW_I6 0x38 +#define RW_I7 0x3c + +/* Stack_frame offsets */ +#define SF_V9_L0 0x00 +#define SF_V9_L1 0x08 +#define SF_V9_L2 0x10 +#define SF_V9_L3 0x18 +#define SF_V9_L4 0x20 +#define SF_V9_L5 0x28 +#define SF_V9_L6 0x30 +#define SF_V9_L7 0x38 +#define SF_V9_I0 0x40 +#define SF_V9_I1 0x48 +#define SF_V9_I2 0x50 +#define SF_V9_I3 0x58 +#define SF_V9_I4 0x60 +#define SF_V9_I5 0x68 +#define SF_V9_FP 0x70 +#define SF_V9_PC 0x78 +#define SF_V9_RETP 0x80 +#define SF_V9_XARG0 0x88 +#define SF_V9_XARG1 0x90 +#define SF_V9_XARG2 0x98 +#define SF_V9_XARG3 0xa0 +#define SF_V9_XARG4 0xa8 +#define SF_V9_XARG5 0xb0 +#define SF_V9_XXARG 0xb8 + +#define SF_L0 0x00 +#define SF_L1 0x04 +#define SF_L2 0x08 +#define SF_L3 0x0c +#define SF_L4 0x10 +#define SF_L5 0x14 +#define SF_L6 0x18 +#define SF_L7 0x1c +#define SF_I0 0x20 +#define SF_I1 0x24 +#define SF_I2 0x28 +#define SF_I3 0x2c +#define SF_I4 0x30 +#define SF_I5 0x34 +#define SF_FP 0x38 +#define SF_PC 0x3c +#define SF_RETP 0x40 +#define SF_XARG0 0x44 +#define SF_XARG1 0x48 +#define SF_XARG2 0x4c +#define SF_XARG3 0x50 +#define SF_XARG4 0x54 +#define SF_XARG5 0x58 +#define SF_XXARG 0x5c + +#ifdef __KERNEL__ + +/* global_reg_snapshot offsets */ +#define GR_SNAP_TSTATE 0x00 +#define GR_SNAP_TPC 0x08 +#define GR_SNAP_TNPC 0x10 +#define GR_SNAP_O7 0x18 +#define GR_SNAP_I7 0x20 +#define GR_SNAP_THREAD 0x28 +#define GR_SNAP_PAD1 0x30 +#define GR_SNAP_PAD2 0x38 + +#endif /* __KERNEL__ */ + +/* Stuff for the ptrace system call */ +#define PTRACE_SPARC_DETACH 11 +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 +#define PTRACE_READDATA 16 +#define PTRACE_WRITEDATA 17 +#define PTRACE_READTEXT 18 +#define PTRACE_WRITETEXT 19 +#define PTRACE_GETFPAREGS 20 +#define PTRACE_SETFPAREGS 21 + +/* There are for debugging 64-bit processes, either from a 32 or 64 bit + * parent. Thus their complements are for debugging 32-bit processes only. + */ + +#define PTRACE_GETREGS64 22 +#define PTRACE_SETREGS64 23 +/* PTRACE_SYSCALL is 24 */ +#define PTRACE_GETFPREGS64 25 +#define PTRACE_SETFPREGS64 26 + +#endif /* !(_SPARC64_PTRACE_H) */ diff --git a/include/asm-sparc/reg.h b/include/asm-sparc/reg.h index ea0a7e590bb3..cb34b0a49aad 100644 --- a/include/asm-sparc/reg.h +++ b/include/asm-sparc/reg.h @@ -1,79 +1,8 @@ -/* - * linux/include/asm-sparc/reg.h - * Layout of the registers as expected by gdb on the Sparc - * we should replace the user.h definitions with those in - * this file, we don't even use the other - * -miguel - * - * The names of the structures, constants and aliases in this file - * have the same names as the sunos ones, some programs rely on these - * names (gdb for example). - * - */ - -#ifndef __SPARC_REG_H -#define __SPARC_REG_H - -struct regs { - int r_psr; -#define r_ps r_psr - int r_pc; - int r_npc; - int r_y; - int r_g1; - int r_g2; - int r_g3; - int r_g4; - int r_g5; - int r_g6; - int r_g7; - int r_o0; - int r_o1; - int r_o2; - int r_o3; - int r_o4; - int r_o5; - int r_o6; - int r_o7; -}; - -struct fpq { - unsigned long *addr; - unsigned long instr; -}; - -struct fq { - union { - double whole; - struct fpq fpq; - } FQu; -}; - -#define FPU_REGS_TYPE unsigned int -#define FPU_FSR_TYPE unsigned - -struct fp_status { - union { - FPU_REGS_TYPE Fpu_regs[32]; - double Fpu_dregs[16]; - } fpu_fr; - FPU_FSR_TYPE Fpu_fsr; - unsigned Fpu_flags; - unsigned Fpu_extra; - unsigned Fpu_qcnt; - struct fq Fpu_q[16]; -}; - -#define fpu_regs f_fpstatus.fpu_fr.Fpu_regs -#define fpu_dregs f_fpstatus.fpu_fr.Fpu_dregs -#define fpu_fsr f_fpstatus.Fpu_fsr -#define fpu_flags f_fpstatus.Fpu_flags -#define fpu_extra f_fpstatus.Fpu_extra -#define fpu_q f_fpstatus.Fpu_q -#define fpu_qcnt f_fpstatus.Fpu_qcnt - -struct fpu { - struct fp_status f_fpstatus; -}; - -#endif /* __SPARC_REG_H */ +#ifndef ___ASM_SPARC_REG_H +#define ___ASM_SPARC_REG_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/reg_32.h b/include/asm-sparc/reg_32.h new file mode 100644 index 000000000000..42fecfcd97e7 --- /dev/null +++ b/include/asm-sparc/reg_32.h @@ -0,0 +1,79 @@ +/* + * linux/include/asm-sparc/reg.h + * Layout of the registers as expected by gdb on the Sparc + * we should replace the user.h definitions with those in + * this file, we don't even use the other + * -miguel + * + * The names of the structures, constants and aliases in this file + * have the same names as the sunos ones, some programs rely on these + * names (gdb for example). + * + */ + +#ifndef __SPARC_REG_H +#define __SPARC_REG_H + +struct regs { + int r_psr; +#define r_ps r_psr + int r_pc; + int r_npc; + int r_y; + int r_g1; + int r_g2; + int r_g3; + int r_g4; + int r_g5; + int r_g6; + int r_g7; + int r_o0; + int r_o1; + int r_o2; + int r_o3; + int r_o4; + int r_o5; + int r_o6; + int r_o7; +}; + +struct fpq { + unsigned long *addr; + unsigned long instr; +}; + +struct fq { + union { + double whole; + struct fpq fpq; + } FQu; +}; + +#define FPU_REGS_TYPE unsigned int +#define FPU_FSR_TYPE unsigned + +struct fp_status { + union { + FPU_REGS_TYPE Fpu_regs[32]; + double Fpu_dregs[16]; + } fpu_fr; + FPU_FSR_TYPE Fpu_fsr; + unsigned Fpu_flags; + unsigned Fpu_extra; + unsigned Fpu_qcnt; + struct fq Fpu_q[16]; +}; + +#define fpu_regs f_fpstatus.fpu_fr.Fpu_regs +#define fpu_dregs f_fpstatus.fpu_fr.Fpu_dregs +#define fpu_fsr f_fpstatus.Fpu_fsr +#define fpu_flags f_fpstatus.Fpu_flags +#define fpu_extra f_fpstatus.Fpu_extra +#define fpu_q f_fpstatus.Fpu_q +#define fpu_qcnt f_fpstatus.Fpu_qcnt + +struct fpu { + struct fp_status f_fpstatus; +}; + +#endif /* __SPARC_REG_H */ diff --git a/include/asm-sparc/reg_64.h b/include/asm-sparc/reg_64.h new file mode 100644 index 000000000000..eb24a07ff4d5 --- /dev/null +++ b/include/asm-sparc/reg_64.h @@ -0,0 +1,56 @@ +/* + * linux/asm-sparc64/reg.h + * Layout of the registers as expected by gdb on the Sparc + * we should replace the user.h definitions with those in + * this file, we don't even use the other + * -miguel + * + * The names of the structures, constants and aliases in this file + * have the same names as the sunos ones, some programs rely on these + * names (gdb for example). + * + */ + +#ifndef __SPARC64_REG_H +#define __SPARC64_REG_H + +struct regs { + unsigned long r_g1; + unsigned long r_g2; + unsigned long r_g3; + unsigned long r_g4; + unsigned long r_g5; + unsigned long r_g6; + unsigned long r_g7; + unsigned long r_o0; + unsigned long r_o1; + unsigned long r_o2; + unsigned long r_o3; + unsigned long r_o4; + unsigned long r_o5; + unsigned long r_o6; + unsigned long r_o7; + unsigned long __pad; + unsigned long r_tstate; + unsigned long r_tpc; + unsigned long r_tnpc; + unsigned int r_y; + unsigned int r_fprs; +}; + +#define FPU_REGS_TYPE unsigned int +#define FPU_FSR_TYPE unsigned long + +struct fp_status { + unsigned long fpu_fr[32]; + unsigned long Fpu_fsr; +}; + +struct fpu { + struct fp_status f_fpstatus; +}; + +#define fpu_regs f_fpstatus.fpu_fr +#define fpu_fsr f_fpstatus.Fpu_fsr + +#endif /* __SPARC64_REG_H */ diff --git a/include/asm-sparc/sbus.h b/include/asm-sparc/sbus.h index f1d2fe1c9a30..8f29a1979665 100644 --- a/include/asm-sparc/sbus.h +++ b/include/asm-sparc/sbus.h @@ -1,153 +1,8 @@ -/* - * sbus.h: Defines for the Sun SBus. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC_SBUS_H -#define _SPARC_SBUS_H - -#include -#include - -#include -#include -#include -#include - -/* We scan which devices are on the SBus using the PROM node device - * tree. SBus devices are described in two different ways. You can - * either get an absolute address at which to access the device, or - * you can get a SBus 'slot' number and an offset within that slot. - */ - -/* The base address at which to calculate device OBIO addresses. */ -#define SUN_SBUS_BVADDR 0xf8000000 -#define SBUS_OFF_MASK 0x01ffffff - -/* These routines are used to calculate device address from slot - * numbers + offsets, and vice versa. - */ - -static inline unsigned long sbus_devaddr(int slotnum, unsigned long offset) -{ - return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<25)+(offset)); -} - -static inline int sbus_dev_slot(unsigned long dev_addr) -{ - return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>25); -} - -struct sbus_bus; - -/* Linux SBUS device tables */ -struct sbus_dev { - struct of_device ofdev; - struct sbus_bus *bus; - struct sbus_dev *next; - struct sbus_dev *child; - struct sbus_dev *parent; - int prom_node; - char prom_name[64]; - int slot; - - struct resource resource[PROMREG_MAX]; - - struct linux_prom_registers reg_addrs[PROMREG_MAX]; - int num_registers; - - struct linux_prom_ranges device_ranges[PROMREG_MAX]; - int num_device_ranges; - - unsigned int irqs[4]; - int num_irqs; -}; -#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev) - -/* This struct describes the SBus(s) found on this machine. */ -struct sbus_bus { - struct of_device ofdev; - struct sbus_dev *devices; /* Link to devices on this SBus */ - struct sbus_bus *next; /* next SBus, if more than one SBus */ - int prom_node; /* PROM device tree node for this SBus */ - char prom_name[64]; /* Usually "sbus" or "sbi" */ - int clock_freq; - - struct linux_prom_ranges sbus_ranges[PROMREG_MAX]; - int num_sbus_ranges; - - int devid; - int board; -}; -#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev) - -extern struct sbus_bus *sbus_root; - -static inline int -sbus_is_slave(struct sbus_dev *dev) -{ - /* XXX Have to write this for sun4c's */ - return 0; -} - -/* Device probing routines could find these handy */ -#define for_each_sbus(bus) \ - for((bus) = sbus_root; (bus); (bus)=(bus)->next) - -#define for_each_sbusdev(device, bus) \ - for((device) = (bus)->devices; (device); (device)=(device)->next) - -#define for_all_sbusdev(device, bus) \ - for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \ - for ((device) = (bus)->devices; (device); (device) = (device)->next) - -/* Driver DVMA interfaces. */ -#define sbus_can_dma_64bit(sdev) (0) /* actually, sparc_cpu_model==sun4d */ -#define sbus_can_burst64(sdev) (0) /* actually, sparc_cpu_model==sun4d */ -extern void sbus_set_sbus64(struct sbus_dev *, int); -extern void sbus_fill_device_irq(struct sbus_dev *); - -/* These yield IOMMU mappings in consistent mode. */ -extern void *sbus_alloc_consistent(struct sbus_dev *, long, u32 *dma_addrp); -extern void sbus_free_consistent(struct sbus_dev *, long, void *, u32); -void prom_adjust_ranges(struct linux_prom_ranges *, int, - struct linux_prom_ranges *, int); - -#define SBUS_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL -#define SBUS_DMA_TODEVICE DMA_TO_DEVICE -#define SBUS_DMA_FROMDEVICE DMA_FROM_DEVICE -#define SBUS_DMA_NONE DMA_NONE - -/* All the rest use streaming mode mappings. */ -extern dma_addr_t sbus_map_single(struct sbus_dev *, void *, size_t, int); -extern void sbus_unmap_single(struct sbus_dev *, dma_addr_t, size_t, int); -extern int sbus_map_sg(struct sbus_dev *, struct scatterlist *, int, int); -extern void sbus_unmap_sg(struct sbus_dev *, struct scatterlist *, int, int); - -/* Finally, allow explicit synchronization of streamable mappings. */ -extern void sbus_dma_sync_single_for_cpu(struct sbus_dev *, dma_addr_t, size_t, int); -#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu -extern void sbus_dma_sync_single_for_device(struct sbus_dev *, dma_addr_t, size_t, int); -extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, int, int); -#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu -extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int); - -/* Eric Brower (ebrower@usa.net) - * Translate SBus interrupt levels to ino values-- - * this is used when converting sbus "interrupts" OBP - * node values to "intr" node values, and is platform - * dependent. If only we could call OBP with - * "sbus-intr>cpu (sbint -- ino)" from kernel... - * See .../drivers/sbus/sbus.c for details. - */ -BTFIXUPDEF_CALL(unsigned int, sbint_to_irq, struct sbus_dev *sdev, unsigned int) -#define sbint_to_irq(sdev, sbint) BTFIXUP_CALL(sbint_to_irq)(sdev, sbint) - -extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *); -extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *); -extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *); -extern int sbus_arch_preinit(void); -extern void sbus_arch_postinit(void); - -#endif /* !(_SPARC_SBUS_H) */ +#ifndef ___ASM_SPARC_SBUS_H +#define ___ASM_SPARC_SBUS_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/sbus_32.h b/include/asm-sparc/sbus_32.h new file mode 100644 index 000000000000..77b5d3aadc99 --- /dev/null +++ b/include/asm-sparc/sbus_32.h @@ -0,0 +1,153 @@ +/* + * sbus.h: Defines for the Sun SBus. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SPARC_SBUS_H +#define _SPARC_SBUS_H + +#include +#include + +#include +#include +#include +#include + +/* We scan which devices are on the SBus using the PROM node device + * tree. SBus devices are described in two different ways. You can + * either get an absolute address at which to access the device, or + * you can get a SBus 'slot' number and an offset within that slot. + */ + +/* The base address at which to calculate device OBIO addresses. */ +#define SUN_SBUS_BVADDR 0xf8000000 +#define SBUS_OFF_MASK 0x01ffffff + +/* These routines are used to calculate device address from slot + * numbers + offsets, and vice versa. + */ + +static inline unsigned long sbus_devaddr(int slotnum, unsigned long offset) +{ + return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<25)+(offset)); +} + +static inline int sbus_dev_slot(unsigned long dev_addr) +{ + return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>25); +} + +struct sbus_bus; + +/* Linux SBUS device tables */ +struct sbus_dev { + struct of_device ofdev; + struct sbus_bus *bus; + struct sbus_dev *next; + struct sbus_dev *child; + struct sbus_dev *parent; + int prom_node; + char prom_name[64]; + int slot; + + struct resource resource[PROMREG_MAX]; + + struct linux_prom_registers reg_addrs[PROMREG_MAX]; + int num_registers; + + struct linux_prom_ranges device_ranges[PROMREG_MAX]; + int num_device_ranges; + + unsigned int irqs[4]; + int num_irqs; +}; +#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev) + +/* This struct describes the SBus(s) found on this machine. */ +struct sbus_bus { + struct of_device ofdev; + struct sbus_dev *devices; /* Link to devices on this SBus */ + struct sbus_bus *next; /* next SBus, if more than one SBus */ + int prom_node; /* PROM device tree node for this SBus */ + char prom_name[64]; /* Usually "sbus" or "sbi" */ + int clock_freq; + + struct linux_prom_ranges sbus_ranges[PROMREG_MAX]; + int num_sbus_ranges; + + int devid; + int board; +}; +#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev) + +extern struct sbus_bus *sbus_root; + +static inline int +sbus_is_slave(struct sbus_dev *dev) +{ + /* XXX Have to write this for sun4c's */ + return 0; +} + +/* Device probing routines could find these handy */ +#define for_each_sbus(bus) \ + for((bus) = sbus_root; (bus); (bus)=(bus)->next) + +#define for_each_sbusdev(device, bus) \ + for((device) = (bus)->devices; (device); (device)=(device)->next) + +#define for_all_sbusdev(device, bus) \ + for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \ + for ((device) = (bus)->devices; (device); (device) = (device)->next) + +/* Driver DVMA interfaces. */ +#define sbus_can_dma_64bit(sdev) (0) /* actually, sparc_cpu_model==sun4d */ +#define sbus_can_burst64(sdev) (0) /* actually, sparc_cpu_model==sun4d */ +extern void sbus_set_sbus64(struct sbus_dev *, int); +extern void sbus_fill_device_irq(struct sbus_dev *); + +/* These yield IOMMU mappings in consistent mode. */ +extern void *sbus_alloc_consistent(struct sbus_dev *, long, u32 *dma_addrp); +extern void sbus_free_consistent(struct sbus_dev *, long, void *, u32); +void prom_adjust_ranges(struct linux_prom_ranges *, int, + struct linux_prom_ranges *, int); + +#define SBUS_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL +#define SBUS_DMA_TODEVICE DMA_TO_DEVICE +#define SBUS_DMA_FROMDEVICE DMA_FROM_DEVICE +#define SBUS_DMA_NONE DMA_NONE + +/* All the rest use streaming mode mappings. */ +extern dma_addr_t sbus_map_single(struct sbus_dev *, void *, size_t, int); +extern void sbus_unmap_single(struct sbus_dev *, dma_addr_t, size_t, int); +extern int sbus_map_sg(struct sbus_dev *, struct scatterlist *, int, int); +extern void sbus_unmap_sg(struct sbus_dev *, struct scatterlist *, int, int); + +/* Finally, allow explicit synchronization of streamable mappings. */ +extern void sbus_dma_sync_single_for_cpu(struct sbus_dev *, dma_addr_t, size_t, int); +#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu +extern void sbus_dma_sync_single_for_device(struct sbus_dev *, dma_addr_t, size_t, int); +extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, int, int); +#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu +extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int); + +/* Eric Brower (ebrower@usa.net) + * Translate SBus interrupt levels to ino values-- + * this is used when converting sbus "interrupts" OBP + * node values to "intr" node values, and is platform + * dependent. If only we could call OBP with + * "sbus-intr>cpu (sbint -- ino)" from kernel... + * See .../drivers/sbus/sbus.c for details. + */ +BTFIXUPDEF_CALL(unsigned int, sbint_to_irq, struct sbus_dev *sdev, unsigned int) +#define sbint_to_irq(sdev, sbint) BTFIXUP_CALL(sbint_to_irq)(sdev, sbint) + +extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *); +extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *); +extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *); +extern int sbus_arch_preinit(void); +extern void sbus_arch_postinit(void); + +#endif /* !(_SPARC_SBUS_H) */ diff --git a/include/asm-sparc/sbus_64.h b/include/asm-sparc/sbus_64.h new file mode 100644 index 000000000000..0e16b6dd7e96 --- /dev/null +++ b/include/asm-sparc/sbus_64.h @@ -0,0 +1,190 @@ +/* sbus.h: Defines for the Sun SBus. + * + * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net) + */ + +#ifndef _SPARC64_SBUS_H +#define _SPARC64_SBUS_H + +#include +#include + +#include +#include +#include +#include +#include + +/* We scan which devices are on the SBus using the PROM node device + * tree. SBus devices are described in two different ways. You can + * either get an absolute address at which to access the device, or + * you can get a SBus 'slot' number and an offset within that slot. + */ + +/* The base address at which to calculate device OBIO addresses. */ +#define SUN_SBUS_BVADDR 0x00000000 +#define SBUS_OFF_MASK 0x0fffffff + +/* These routines are used to calculate device address from slot + * numbers + offsets, and vice versa. + */ + +static inline unsigned long sbus_devaddr(int slotnum, unsigned long offset) +{ + return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<28)+(offset)); +} + +static inline int sbus_dev_slot(unsigned long dev_addr) +{ + return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>28); +} + +struct sbus_bus; + +/* Linux SBUS device tables */ +struct sbus_dev { + struct of_device ofdev; + struct sbus_bus *bus; + struct sbus_dev *next; + struct sbus_dev *child; + struct sbus_dev *parent; + int prom_node; + char prom_name[64]; + int slot; + + struct resource resource[PROMREG_MAX]; + + struct linux_prom_registers reg_addrs[PROMREG_MAX]; + int num_registers; + + struct linux_prom_ranges device_ranges[PROMREG_MAX]; + int num_device_ranges; + + unsigned int irqs[4]; + int num_irqs; +}; +#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev) + +/* This struct describes the SBus(s) found on this machine. */ +struct sbus_bus { + struct of_device ofdev; + struct sbus_dev *devices; /* Tree of SBUS devices */ + struct sbus_bus *next; /* Next SBUS in system */ + int prom_node; /* OBP node of SBUS */ + char prom_name[64]; /* Usually "sbus" or "sbi" */ + int clock_freq; + + struct linux_prom_ranges sbus_ranges[PROMREG_MAX]; + int num_sbus_ranges; + + int portid; +}; +#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev) + +extern struct sbus_bus *sbus_root; + +/* Device probing routines could find these handy */ +#define for_each_sbus(bus) \ + for((bus) = sbus_root; (bus); (bus)=(bus)->next) + +#define for_each_sbusdev(device, bus) \ + for((device) = (bus)->devices; (device); (device)=(device)->next) + +#define for_all_sbusdev(device, bus) \ + for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \ + for ((device) = (bus)->devices; (device); (device) = (device)->next) + +/* Driver DVMA interfaces. */ +#define sbus_can_dma_64bit(sdev) (1) +#define sbus_can_burst64(sdev) (1) +extern void sbus_set_sbus64(struct sbus_dev *, int); +extern void sbus_fill_device_irq(struct sbus_dev *); + +static inline void *sbus_alloc_consistent(struct sbus_dev *sdev , size_t size, + dma_addr_t *dma_handle) +{ + return dma_alloc_coherent(&sdev->ofdev.dev, size, + dma_handle, GFP_ATOMIC); +} + +static inline void sbus_free_consistent(struct sbus_dev *sdev, size_t size, + void *vaddr, dma_addr_t dma_handle) +{ + return dma_free_coherent(&sdev->ofdev.dev, size, vaddr, dma_handle); +} + +#define SBUS_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL +#define SBUS_DMA_TODEVICE DMA_TO_DEVICE +#define SBUS_DMA_FROMDEVICE DMA_FROM_DEVICE +#define SBUS_DMA_NONE DMA_NONE + +/* All the rest use streaming mode mappings. */ +static inline dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *ptr, + size_t size, int direction) +{ + return dma_map_single(&sdev->ofdev.dev, ptr, size, + (enum dma_data_direction) direction); +} + +static inline void sbus_unmap_single(struct sbus_dev *sdev, + dma_addr_t dma_addr, size_t size, + int direction) +{ + dma_unmap_single(&sdev->ofdev.dev, dma_addr, size, + (enum dma_data_direction) direction); +} + +static inline int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, + int nents, int direction) +{ + return dma_map_sg(&sdev->ofdev.dev, sg, nents, + (enum dma_data_direction) direction); +} + +static inline void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, + int nents, int direction) +{ + dma_unmap_sg(&sdev->ofdev.dev, sg, nents, + (enum dma_data_direction) direction); +} + +/* Finally, allow explicit synchronization of streamable mappings. */ +static inline void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, + dma_addr_t dma_handle, + size_t size, int direction) +{ + dma_sync_single_for_cpu(&sdev->ofdev.dev, dma_handle, size, + (enum dma_data_direction) direction); +} +#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu + +static inline void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, + dma_addr_t dma_handle, + size_t size, int direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + +static inline void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, + struct scatterlist *sg, + int nents, int direction) +{ + dma_sync_sg_for_cpu(&sdev->ofdev.dev, sg, nents, + (enum dma_data_direction) direction); +} +#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu + +static inline void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, + struct scatterlist *sg, + int nents, int direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + +extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *); +extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *); +extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *); +extern int sbus_arch_preinit(void); +extern void sbus_arch_postinit(void); + +#endif /* !(_SPARC64_SBUS_H) */ diff --git a/include/asm-sparc/scatterlist.h b/include/asm-sparc/scatterlist.h index c82609ca1d0f..b1a0e316c2b6 100644 --- a/include/asm-sparc/scatterlist.h +++ b/include/asm-sparc/scatterlist.h @@ -1,26 +1,8 @@ -#ifndef _SPARC_SCATTERLIST_H -#define _SPARC_SCATTERLIST_H - -#include - -struct scatterlist { -#ifdef CONFIG_DEBUG_SG - unsigned long sg_magic; +#ifndef ___ASM_SPARC_SCATTERLIST_H +#define ___ASM_SPARC_SCATTERLIST_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - unsigned long page_link; - unsigned int offset; - - unsigned int length; - - __u32 dvma_address; /* A place to hang host-specific addresses at. */ - __u32 dvma_length; -}; - -#define sg_dma_address(sg) ((sg)->dvma_address) -#define sg_dma_len(sg) ((sg)->dvma_length) - -#define ISA_DMA_THRESHOLD (~0UL) - -#define ARCH_HAS_SG_CHAIN - -#endif /* !(_SPARC_SCATTERLIST_H) */ diff --git a/include/asm-sparc/scatterlist_32.h b/include/asm-sparc/scatterlist_32.h new file mode 100644 index 000000000000..c82609ca1d0f --- /dev/null +++ b/include/asm-sparc/scatterlist_32.h @@ -0,0 +1,26 @@ +#ifndef _SPARC_SCATTERLIST_H +#define _SPARC_SCATTERLIST_H + +#include + +struct scatterlist { +#ifdef CONFIG_DEBUG_SG + unsigned long sg_magic; +#endif + unsigned long page_link; + unsigned int offset; + + unsigned int length; + + __u32 dvma_address; /* A place to hang host-specific addresses at. */ + __u32 dvma_length; +}; + +#define sg_dma_address(sg) ((sg)->dvma_address) +#define sg_dma_len(sg) ((sg)->dvma_length) + +#define ISA_DMA_THRESHOLD (~0UL) + +#define ARCH_HAS_SG_CHAIN + +#endif /* !(_SPARC_SCATTERLIST_H) */ diff --git a/include/asm-sparc/scatterlist_64.h b/include/asm-sparc/scatterlist_64.h new file mode 100644 index 000000000000..81bd058f9382 --- /dev/null +++ b/include/asm-sparc/scatterlist_64.h @@ -0,0 +1,27 @@ +#ifndef _SPARC64_SCATTERLIST_H +#define _SPARC64_SCATTERLIST_H + +#include +#include + +struct scatterlist { +#ifdef CONFIG_DEBUG_SG + unsigned long sg_magic; +#endif + unsigned long page_link; + unsigned int offset; + + unsigned int length; + + dma_addr_t dma_address; + __u32 dma_length; +}; + +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->dma_length) + +#define ISA_DMA_THRESHOLD (~0UL) + +#define ARCH_HAS_SG_CHAIN + +#endif /* !(_SPARC64_SCATTERLIST_H) */ diff --git a/include/asm-sparc/sections.h b/include/asm-sparc/sections.h index 6832841df051..cbd019162425 100644 --- a/include/asm-sparc/sections.h +++ b/include/asm-sparc/sections.h @@ -1,6 +1,8 @@ -#ifndef _SPARC_SECTIONS_H -#define _SPARC_SECTIONS_H - -#include - +#ifndef ___ASM_SPARC_SECTIONS_H +#define ___ASM_SPARC_SECTIONS_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif diff --git a/include/asm-sparc/sections_32.h b/include/asm-sparc/sections_32.h new file mode 100644 index 000000000000..6832841df051 --- /dev/null +++ b/include/asm-sparc/sections_32.h @@ -0,0 +1,6 @@ +#ifndef _SPARC_SECTIONS_H +#define _SPARC_SECTIONS_H + +#include + +#endif diff --git a/include/asm-sparc/sections_64.h b/include/asm-sparc/sections_64.h new file mode 100644 index 000000000000..3f4b9fdc28d0 --- /dev/null +++ b/include/asm-sparc/sections_64.h @@ -0,0 +1,9 @@ +#ifndef _SPARC64_SECTIONS_H +#define _SPARC64_SECTIONS_H + +/* nothing to see, move along */ +#include + +extern char _start[]; + +#endif diff --git a/include/asm-sparc/sfp-machine.h b/include/asm-sparc/sfp-machine.h index 266a42b8f99f..c676fcc2dd27 100644 --- a/include/asm-sparc/sfp-machine.h +++ b/include/asm-sparc/sfp-machine.h @@ -1,212 +1,8 @@ -/* Machine-dependent software floating-point definitions. - Sparc userland (_Q_*) version. - Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson (rth@cygnus.com), - Jakub Jelinek (jj@ultra.linux.cz), - David S. Miller (davem@redhat.com) and - Peter Maydell (pmaydell@chiark.greenend.org.uk). - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _SFP_MACHINE_H -#define _SFP_MACHINE_H - - -#define _FP_W_TYPE_SIZE 32 -#define _FP_W_TYPE unsigned long -#define _FP_WS_TYPE signed long -#define _FP_I_TYPE long - -#define _FP_MUL_MEAT_S(R,X,Y) \ - _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) -#define _FP_MUL_MEAT_D(R,X,Y) \ - _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) -#define _FP_MUL_MEAT_Q(R,X,Y) \ - _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) - -#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) -#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) -#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) - -#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) -#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 -#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 -#define _FP_NANSIGN_S 0 -#define _FP_NANSIGN_D 0 -#define _FP_NANSIGN_Q 0 - -#define _FP_KEEPNANFRACP 1 - -/* If one NaN is signaling and the other is not, - * we choose that one, otherwise we choose X. - */ -/* For _Qp_* and _Q_*, this should prefer X, for - * CPU instruction emulation this should prefer Y. - * (see SPAMv9 B.2.2 section). - */ -#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ - do { \ - if ((_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs) \ - && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ - { \ - R##_s = X##_s; \ - _FP_FRAC_COPY_##wc(R,X); \ - } \ - else \ - { \ - R##_s = Y##_s; \ - _FP_FRAC_COPY_##wc(R,Y); \ - } \ - R##_c = FP_CLS_NAN; \ - } while (0) - -/* Some assembly to speed things up. */ -#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ - __asm__ ("addcc %r7,%8,%2\n\t" \ - "addxcc %r5,%6,%1\n\t" \ - "addx %r3,%4,%0\n" \ - : "=r" ((USItype)(r2)), \ - "=&r" ((USItype)(r1)), \ - "=&r" ((USItype)(r0)) \ - : "%rJ" ((USItype)(x2)), \ - "rI" ((USItype)(y2)), \ - "%rJ" ((USItype)(x1)), \ - "rI" ((USItype)(y1)), \ - "%rJ" ((USItype)(x0)), \ - "rI" ((USItype)(y0)) \ - : "cc") - -#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ - __asm__ ("subcc %r7,%8,%2\n\t" \ - "subxcc %r5,%6,%1\n\t" \ - "subx %r3,%4,%0\n" \ - : "=r" ((USItype)(r2)), \ - "=&r" ((USItype)(r1)), \ - "=&r" ((USItype)(r0)) \ - : "%rJ" ((USItype)(x2)), \ - "rI" ((USItype)(y2)), \ - "%rJ" ((USItype)(x1)), \ - "rI" ((USItype)(y1)), \ - "%rJ" ((USItype)(x0)), \ - "rI" ((USItype)(y0)) \ - : "cc") - -#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ - do { \ - /* We need to fool gcc, as we need to pass more than 10 \ - input/outputs. */ \ - register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \ - __asm__ __volatile__ ( \ - "addcc %r8,%9,%1\n\t" \ - "addxcc %r6,%7,%0\n\t" \ - "addxcc %r4,%5,%%g2\n\t" \ - "addx %r2,%3,%%g1\n\t" \ - : "=&r" ((USItype)(r1)), \ - "=&r" ((USItype)(r0)) \ - : "%rJ" ((USItype)(x3)), \ - "rI" ((USItype)(y3)), \ - "%rJ" ((USItype)(x2)), \ - "rI" ((USItype)(y2)), \ - "%rJ" ((USItype)(x1)), \ - "rI" ((USItype)(y1)), \ - "%rJ" ((USItype)(x0)), \ - "rI" ((USItype)(y0)) \ - : "cc", "g1", "g2"); \ - __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \ - r3 = _t1; r2 = _t2; \ - } while (0) - -#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ - do { \ - /* We need to fool gcc, as we need to pass more than 10 \ - input/outputs. */ \ - register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \ - __asm__ __volatile__ ( \ - "subcc %r8,%9,%1\n\t" \ - "subxcc %r6,%7,%0\n\t" \ - "subxcc %r4,%5,%%g2\n\t" \ - "subx %r2,%3,%%g1\n\t" \ - : "=&r" ((USItype)(r1)), \ - "=&r" ((USItype)(r0)) \ - : "%rJ" ((USItype)(x3)), \ - "rI" ((USItype)(y3)), \ - "%rJ" ((USItype)(x2)), \ - "rI" ((USItype)(y2)), \ - "%rJ" ((USItype)(x1)), \ - "rI" ((USItype)(y1)), \ - "%rJ" ((USItype)(x0)), \ - "rI" ((USItype)(y0)) \ - : "cc", "g1", "g2"); \ - __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \ - r3 = _t1; r2 = _t2; \ - } while (0) - -#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) __FP_FRAC_SUB_3(x2,x1,x0,x2,x1,x0,y2,y1,y0) - -#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) __FP_FRAC_SUB_4(x3,x2,x1,x0,x3,x2,x1,x0,y3,y2,y1,y0) - -#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \ - __asm__ ("addcc %3,%4,%3\n\t" \ - "addxcc %2,%%g0,%2\n\t" \ - "addxcc %1,%%g0,%1\n\t" \ - "addx %0,%%g0,%0\n\t" \ - : "=&r" ((USItype)(x3)), \ - "=&r" ((USItype)(x2)), \ - "=&r" ((USItype)(x1)), \ - "=&r" ((USItype)(x0)) \ - : "rI" ((USItype)(i)), \ - "0" ((USItype)(x3)), \ - "1" ((USItype)(x2)), \ - "2" ((USItype)(x1)), \ - "3" ((USItype)(x0)) \ - : "cc") - -#ifndef CONFIG_SMP -extern struct task_struct *last_task_used_math; -#endif - -/* Obtain the current rounding mode. */ -#ifndef FP_ROUNDMODE -#ifdef CONFIG_SMP -#define FP_ROUNDMODE ((current->thread.fsr >> 30) & 0x3) -#else -#define FP_ROUNDMODE ((last_task_used_math->thread.fsr >> 30) & 0x3) -#endif -#endif - -/* Exception flags. */ -#define FP_EX_INVALID (1 << 4) -#define FP_EX_OVERFLOW (1 << 3) -#define FP_EX_UNDERFLOW (1 << 2) -#define FP_EX_DIVZERO (1 << 1) -#define FP_EX_INEXACT (1 << 0) - -#define FP_HANDLE_EXCEPTIONS return _fex - -#ifdef CONFIG_SMP -#define FP_INHIBIT_RESULTS ((current->thread.fsr >> 23) & _fex) -#else -#define FP_INHIBIT_RESULTS ((last_task_used_math->thread.fsr >> 23) & _fex) -#endif - -#ifdef CONFIG_SMP -#define FP_TRAPPING_EXCEPTIONS ((current->thread.fsr >> 23) & 0x1f) +#ifndef ___ASM_SPARC_SFP_MACHINE_H +#define ___ASM_SPARC_SFP_MACHINE_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define FP_TRAPPING_EXCEPTIONS ((last_task_used_math->thread.fsr >> 23) & 0x1f) +#include #endif - #endif diff --git a/include/asm-sparc/sfp-machine_32.h b/include/asm-sparc/sfp-machine_32.h new file mode 100644 index 000000000000..01d9c3b5a73b --- /dev/null +++ b/include/asm-sparc/sfp-machine_32.h @@ -0,0 +1,212 @@ +/* Machine-dependent software floating-point definitions. + Sparc userland (_Q_*) version. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _SFP_MACHINE_H +#define _SFP_MACHINE_H + + +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* If one NaN is signaling and the other is not, + * we choose that one, otherwise we choose X. + */ +/* For _Qp_* and _Q_*, this should prefer X, for + * CPU instruction emulation this should prefer Y. + * (see SPAMv9 B.2.2 section). + */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + else \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +/* Some assembly to speed things up. */ +#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + __asm__ ("addcc %r7,%8,%2\n\t" \ + "addxcc %r5,%6,%1\n\t" \ + "addx %r3,%4,%0\n" \ + : "=r" ((USItype)(r2)), \ + "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc") + +#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + __asm__ ("subcc %r7,%8,%2\n\t" \ + "subxcc %r5,%6,%1\n\t" \ + "subx %r3,%4,%0\n" \ + : "=r" ((USItype)(r2)), \ + "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc") + +#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + /* We need to fool gcc, as we need to pass more than 10 \ + input/outputs. */ \ + register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \ + __asm__ __volatile__ ( \ + "addcc %r8,%9,%1\n\t" \ + "addxcc %r6,%7,%0\n\t" \ + "addxcc %r4,%5,%%g2\n\t" \ + "addx %r2,%3,%%g1\n\t" \ + : "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x3)), \ + "rI" ((USItype)(y3)), \ + "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc", "g1", "g2"); \ + __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \ + r3 = _t1; r2 = _t2; \ + } while (0) + +#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + /* We need to fool gcc, as we need to pass more than 10 \ + input/outputs. */ \ + register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \ + __asm__ __volatile__ ( \ + "subcc %r8,%9,%1\n\t" \ + "subxcc %r6,%7,%0\n\t" \ + "subxcc %r4,%5,%%g2\n\t" \ + "subx %r2,%3,%%g1\n\t" \ + : "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x3)), \ + "rI" ((USItype)(y3)), \ + "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc", "g1", "g2"); \ + __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \ + r3 = _t1; r2 = _t2; \ + } while (0) + +#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) __FP_FRAC_SUB_3(x2,x1,x0,x2,x1,x0,y2,y1,y0) + +#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) __FP_FRAC_SUB_4(x3,x2,x1,x0,x3,x2,x1,x0,y3,y2,y1,y0) + +#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \ + __asm__ ("addcc %3,%4,%3\n\t" \ + "addxcc %2,%%g0,%2\n\t" \ + "addxcc %1,%%g0,%1\n\t" \ + "addx %0,%%g0,%0\n\t" \ + : "=&r" ((USItype)(x3)), \ + "=&r" ((USItype)(x2)), \ + "=&r" ((USItype)(x1)), \ + "=&r" ((USItype)(x0)) \ + : "rI" ((USItype)(i)), \ + "0" ((USItype)(x3)), \ + "1" ((USItype)(x2)), \ + "2" ((USItype)(x1)), \ + "3" ((USItype)(x0)) \ + : "cc") + +#ifndef CONFIG_SMP +extern struct task_struct *last_task_used_math; +#endif + +/* Obtain the current rounding mode. */ +#ifndef FP_ROUNDMODE +#ifdef CONFIG_SMP +#define FP_ROUNDMODE ((current->thread.fsr >> 30) & 0x3) +#else +#define FP_ROUNDMODE ((last_task_used_math->thread.fsr >> 30) & 0x3) +#endif +#endif + +/* Exception flags. */ +#define FP_EX_INVALID (1 << 4) +#define FP_EX_OVERFLOW (1 << 3) +#define FP_EX_UNDERFLOW (1 << 2) +#define FP_EX_DIVZERO (1 << 1) +#define FP_EX_INEXACT (1 << 0) + +#define FP_HANDLE_EXCEPTIONS return _fex + +#ifdef CONFIG_SMP +#define FP_INHIBIT_RESULTS ((current->thread.fsr >> 23) & _fex) +#else +#define FP_INHIBIT_RESULTS ((last_task_used_math->thread.fsr >> 23) & _fex) +#endif + +#ifdef CONFIG_SMP +#define FP_TRAPPING_EXCEPTIONS ((current->thread.fsr >> 23) & 0x1f) +#else +#define FP_TRAPPING_EXCEPTIONS ((last_task_used_math->thread.fsr >> 23) & 0x1f) +#endif + +#endif diff --git a/include/asm-sparc/sfp-machine_64.h b/include/asm-sparc/sfp-machine_64.h new file mode 100644 index 000000000000..ca913ef40bd5 --- /dev/null +++ b/include/asm-sparc/sfp-machine_64.h @@ -0,0 +1,93 @@ +/* Machine-dependent software floating-point definitions. + Sparc64 kernel version. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz) and + David S. Miller (davem@redhat.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _SFP_MACHINE_H +#define _SFP_MACHINE_H + +#define _FP_W_TYPE_SIZE 64 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1) +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* If one NaN is signaling and the other is not, + * we choose that one, otherwise we choose X. + */ +/* For _Qp_* and _Q_*, this should prefer X, for + * CPU instruction emulation this should prefer Y. + * (see SPAMv9 B.2.2 section). + */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + else \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +/* Obtain the current rounding mode. */ +#ifndef FP_ROUNDMODE +#define FP_ROUNDMODE ((current_thread_info()->xfsr[0] >> 30) & 0x3) +#endif + +/* Exception flags. */ +#define FP_EX_INVALID (1 << 4) +#define FP_EX_OVERFLOW (1 << 3) +#define FP_EX_UNDERFLOW (1 << 2) +#define FP_EX_DIVZERO (1 << 1) +#define FP_EX_INEXACT (1 << 0) + +#define FP_HANDLE_EXCEPTIONS return _fex + +#define FP_INHIBIT_RESULTS ((current_thread_info()->xfsr[0] >> 23) & _fex) + +#define FP_TRAPPING_EXCEPTIONS ((current_thread_info()->xfsr[0] >> 23) & 0x1f) + +#endif diff --git a/include/asm-sparc/shmparam.h b/include/asm-sparc/shmparam.h index 59a1243c12f3..16fda7e9acc8 100644 --- a/include/asm-sparc/shmparam.h +++ b/include/asm-sparc/shmparam.h @@ -1,11 +1,8 @@ -#ifndef _ASMSPARC_SHMPARAM_H -#define _ASMSPARC_SHMPARAM_H - -#define __ARCH_FORCE_SHMLBA 1 - -extern int vac_cache_size; -#define SHMLBA (vac_cache_size ? vac_cache_size : \ - (sparc_cpu_model == sun4c ? (64 * 1024) : \ - (sparc_cpu_model == sun4 ? (128 * 1024) : PAGE_SIZE))) - -#endif /* _ASMSPARC_SHMPARAM_H */ +#ifndef ___ASM_SPARC_SHMPARAM_H +#define ___ASM_SPARC_SHMPARAM_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/shmparam_32.h b/include/asm-sparc/shmparam_32.h new file mode 100644 index 000000000000..59a1243c12f3 --- /dev/null +++ b/include/asm-sparc/shmparam_32.h @@ -0,0 +1,11 @@ +#ifndef _ASMSPARC_SHMPARAM_H +#define _ASMSPARC_SHMPARAM_H + +#define __ARCH_FORCE_SHMLBA 1 + +extern int vac_cache_size; +#define SHMLBA (vac_cache_size ? vac_cache_size : \ + (sparc_cpu_model == sun4c ? (64 * 1024) : \ + (sparc_cpu_model == sun4 ? (128 * 1024) : PAGE_SIZE))) + +#endif /* _ASMSPARC_SHMPARAM_H */ diff --git a/include/asm-sparc/shmparam_64.h b/include/asm-sparc/shmparam_64.h new file mode 100644 index 000000000000..1ed0d6701a9b --- /dev/null +++ b/include/asm-sparc/shmparam_64.h @@ -0,0 +1,10 @@ +#ifndef _ASMSPARC64_SHMPARAM_H +#define _ASMSPARC64_SHMPARAM_H + +#include + +#define __ARCH_FORCE_SHMLBA 1 +/* attach addr a multiple of this */ +#define SHMLBA ((PAGE_SIZE > L1DCACHE_SIZE) ? PAGE_SIZE : L1DCACHE_SIZE) + +#endif /* _ASMSPARC64_SHMPARAM_H */ diff --git a/include/asm-sparc/sigcontext.h b/include/asm-sparc/sigcontext.h index c5fb60dcbd75..82fc7d54a4fa 100644 --- a/include/asm-sparc/sigcontext.h +++ b/include/asm-sparc/sigcontext.h @@ -1,62 +1,8 @@ -#ifndef __SPARC_SIGCONTEXT_H -#define __SPARC_SIGCONTEXT_H - -#ifdef __KERNEL__ -#include - -#ifndef __ASSEMBLY__ - -#define __SUNOS_MAXWIN 31 - -/* This is what SunOS does, so shall I. */ -struct sigcontext { - int sigc_onstack; /* state to restore */ - int sigc_mask; /* sigmask to restore */ - int sigc_sp; /* stack pointer */ - int sigc_pc; /* program counter */ - int sigc_npc; /* next program counter */ - int sigc_psr; /* for condition codes etc */ - int sigc_g1; /* User uses these two registers */ - int sigc_o0; /* within the trampoline code. */ - - /* Now comes information regarding the users window set - * at the time of the signal. - */ - int sigc_oswins; /* outstanding windows */ - - /* stack ptrs for each regwin buf */ - char *sigc_spbuf[__SUNOS_MAXWIN]; - - /* Windows to restore after signal */ - struct { - unsigned long locals[8]; - unsigned long ins[8]; - } sigc_wbuf[__SUNOS_MAXWIN]; -}; - -typedef struct { - struct { - unsigned long psr; - unsigned long pc; - unsigned long npc; - unsigned long y; - unsigned long u_regs[16]; /* globals and ins */ - } si_regs; - int si_mask; -} __siginfo_t; - -typedef struct { - unsigned long si_float_regs [32]; - unsigned long si_fsr; - unsigned long si_fpqdepth; - struct { - unsigned long *insn_addr; - unsigned long insn; - } si_fpqueue [16]; -} __siginfo_fpu_t; - -#endif /* !(__ASSEMBLY__) */ - -#endif /* (__KERNEL__) */ - -#endif /* !(__SPARC_SIGCONTEXT_H) */ +#ifndef ___ASM_SPARC_SIGCONTEXT_H +#define ___ASM_SPARC_SIGCONTEXT_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/sigcontext_32.h b/include/asm-sparc/sigcontext_32.h new file mode 100644 index 000000000000..c5fb60dcbd75 --- /dev/null +++ b/include/asm-sparc/sigcontext_32.h @@ -0,0 +1,62 @@ +#ifndef __SPARC_SIGCONTEXT_H +#define __SPARC_SIGCONTEXT_H + +#ifdef __KERNEL__ +#include + +#ifndef __ASSEMBLY__ + +#define __SUNOS_MAXWIN 31 + +/* This is what SunOS does, so shall I. */ +struct sigcontext { + int sigc_onstack; /* state to restore */ + int sigc_mask; /* sigmask to restore */ + int sigc_sp; /* stack pointer */ + int sigc_pc; /* program counter */ + int sigc_npc; /* next program counter */ + int sigc_psr; /* for condition codes etc */ + int sigc_g1; /* User uses these two registers */ + int sigc_o0; /* within the trampoline code. */ + + /* Now comes information regarding the users window set + * at the time of the signal. + */ + int sigc_oswins; /* outstanding windows */ + + /* stack ptrs for each regwin buf */ + char *sigc_spbuf[__SUNOS_MAXWIN]; + + /* Windows to restore after signal */ + struct { + unsigned long locals[8]; + unsigned long ins[8]; + } sigc_wbuf[__SUNOS_MAXWIN]; +}; + +typedef struct { + struct { + unsigned long psr; + unsigned long pc; + unsigned long npc; + unsigned long y; + unsigned long u_regs[16]; /* globals and ins */ + } si_regs; + int si_mask; +} __siginfo_t; + +typedef struct { + unsigned long si_float_regs [32]; + unsigned long si_fsr; + unsigned long si_fpqdepth; + struct { + unsigned long *insn_addr; + unsigned long insn; + } si_fpqueue [16]; +} __siginfo_fpu_t; + +#endif /* !(__ASSEMBLY__) */ + +#endif /* (__KERNEL__) */ + +#endif /* !(__SPARC_SIGCONTEXT_H) */ diff --git a/include/asm-sparc/sigcontext_64.h b/include/asm-sparc/sigcontext_64.h new file mode 100644 index 000000000000..1c868d680cfc --- /dev/null +++ b/include/asm-sparc/sigcontext_64.h @@ -0,0 +1,87 @@ +#ifndef __SPARC64_SIGCONTEXT_H +#define __SPARC64_SIGCONTEXT_H + +#ifdef __KERNEL__ +#include +#endif + +#ifndef __ASSEMBLY__ + +#ifdef __KERNEL__ + +#define __SUNOS_MAXWIN 31 + +/* This is what SunOS does, so shall I unless we use new 32bit signals or rt signals. */ +struct sigcontext32 { + int sigc_onstack; /* state to restore */ + int sigc_mask; /* sigmask to restore */ + int sigc_sp; /* stack pointer */ + int sigc_pc; /* program counter */ + int sigc_npc; /* next program counter */ + int sigc_psr; /* for condition codes etc */ + int sigc_g1; /* User uses these two registers */ + int sigc_o0; /* within the trampoline code. */ + + /* Now comes information regarding the users window set + * at the time of the signal. + */ + int sigc_oswins; /* outstanding windows */ + + /* stack ptrs for each regwin buf */ + unsigned sigc_spbuf[__SUNOS_MAXWIN]; + + /* Windows to restore after signal */ + struct reg_window32 sigc_wbuf[__SUNOS_MAXWIN]; +}; + +#endif + +#ifdef __KERNEL__ + +/* This is what we use for 32bit new non-rt signals. */ + +typedef struct { + struct { + unsigned int psr; + unsigned int pc; + unsigned int npc; + unsigned int y; + unsigned int u_regs[16]; /* globals and ins */ + } si_regs; + int si_mask; +} __siginfo32_t; + +#endif + +typedef struct { + unsigned int si_float_regs [64]; + unsigned long si_fsr; + unsigned long si_gsr; + unsigned long si_fprs; +} __siginfo_fpu_t; + +/* This is what SunOS doesn't, so we have to write this alone + and do it properly. */ +struct sigcontext { + /* The size of this array has to match SI_MAX_SIZE from siginfo.h */ + char sigc_info[128]; + struct { + unsigned long u_regs[16]; /* globals and ins */ + unsigned long tstate; + unsigned long tpc; + unsigned long tnpc; + unsigned int y; + unsigned int fprs; + } sigc_regs; + __siginfo_fpu_t * sigc_fpu_save; + struct { + void * ss_sp; + int ss_flags; + unsigned long ss_size; + } sigc_stack; + unsigned long sigc_mask; +}; + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC64_SIGCONTEXT_H) */ diff --git a/include/asm-sparc/siginfo.h b/include/asm-sparc/siginfo.h index 3c71af135c52..2c9fccf4ce18 100644 --- a/include/asm-sparc/siginfo.h +++ b/include/asm-sparc/siginfo.h @@ -1,17 +1,8 @@ -#ifndef _SPARC_SIGINFO_H -#define _SPARC_SIGINFO_H - -#define __ARCH_SI_UID_T unsigned int -#define __ARCH_SI_TRAPNO - -#include - -#define SI_NOINFO 32767 /* no information in siginfo_t */ - -/* - * SIGEMT si_codes - */ -#define EMT_TAGOVF (__SI_FAULT|1) /* tag overflow */ -#define NSIGEMT 1 - -#endif /* !(_SPARC_SIGINFO_H) */ +#ifndef ___ASM_SPARC_SIGINFO_H +#define ___ASM_SPARC_SIGINFO_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/siginfo_32.h b/include/asm-sparc/siginfo_32.h new file mode 100644 index 000000000000..3c71af135c52 --- /dev/null +++ b/include/asm-sparc/siginfo_32.h @@ -0,0 +1,17 @@ +#ifndef _SPARC_SIGINFO_H +#define _SPARC_SIGINFO_H + +#define __ARCH_SI_UID_T unsigned int +#define __ARCH_SI_TRAPNO + +#include + +#define SI_NOINFO 32767 /* no information in siginfo_t */ + +/* + * SIGEMT si_codes + */ +#define EMT_TAGOVF (__SI_FAULT|1) /* tag overflow */ +#define NSIGEMT 1 + +#endif /* !(_SPARC_SIGINFO_H) */ diff --git a/include/asm-sparc/siginfo_64.h b/include/asm-sparc/siginfo_64.h new file mode 100644 index 000000000000..c96e6c30f8b0 --- /dev/null +++ b/include/asm-sparc/siginfo_64.h @@ -0,0 +1,32 @@ +#ifndef _SPARC64_SIGINFO_H +#define _SPARC64_SIGINFO_H + +#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3) + +#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +#define __ARCH_SI_TRAPNO +#define __ARCH_SI_BAND_T int + +#include + +#ifdef __KERNEL__ + +#include + +#ifdef CONFIG_COMPAT + +struct compat_siginfo; + +#endif /* CONFIG_COMPAT */ + +#endif /* __KERNEL__ */ + +#define SI_NOINFO 32767 /* no information in siginfo_t */ + +/* + * SIGEMT si_codes + */ +#define EMT_TAGOVF (__SI_FAULT|1) /* tag overflow */ +#define NSIGEMT 1 + +#endif diff --git a/include/asm-sparc/signal.h b/include/asm-sparc/signal.h index 683657d6e685..36f5f9e482f7 100644 --- a/include/asm-sparc/signal.h +++ b/include/asm-sparc/signal.h @@ -1,207 +1,8 @@ -#ifndef _ASMSPARC_SIGNAL_H -#define _ASMSPARC_SIGNAL_H - -#include -#include - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ -#include -#include -#endif -#endif - -/* On the Sparc the signal handlers get passed a 'sub-signal' code - * for certain signal types, which we document here. - */ -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SUBSIG_STACK 0 -#define SUBSIG_ILLINST 2 -#define SUBSIG_PRIVINST 3 -#define SUBSIG_BADTRAP(t) (0x80 + (t)) - -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 - -#define SIGEMT 7 -#define SUBSIG_TAG 10 - -#define SIGFPE 8 -#define SUBSIG_FPDISABLED 0x400 -#define SUBSIG_FPERROR 0x404 -#define SUBSIG_FPINTOVFL 0x001 -#define SUBSIG_FPSTSIG 0x002 -#define SUBSIG_IDIVZERO 0x014 -#define SUBSIG_FPINEXACT 0x0c4 -#define SUBSIG_FPDIVZERO 0x0c8 -#define SUBSIG_FPUNFLOW 0x0cc -#define SUBSIG_FPOPERROR 0x0d0 -#define SUBSIG_FPOVFLOW 0x0d4 - -#define SIGKILL 9 -#define SIGBUS 10 -#define SUBSIG_BUSTIMEOUT 1 -#define SUBSIG_ALIGNMENT 2 -#define SUBSIG_MISCERROR 5 - -#define SIGSEGV 11 -#define SUBSIG_NOMAPPING 3 -#define SUBSIG_PROTECTION 4 -#define SUBSIG_SEGERROR 5 - -#define SIGSYS 12 - -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGURG 16 - -/* SunOS values which deviate from the Linux/i386 ones */ -#define SIGSTOP 17 -#define SIGTSTP 18 -#define SIGCONT 19 -#define SIGCHLD 20 -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGIO 23 -#define SIGPOLL SIGIO /* SysV name for SIGIO */ -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGLOST 29 -#define SIGPWR SIGLOST -#define SIGUSR1 30 -#define SIGUSR2 31 - -/* Most things should be clean enough to redefine this at will, if care - * is taken to make libc match. - */ - -#define __OLD_NSIG 32 -#define __NEW_NSIG 64 -#define _NSIG_BPW 32 -#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW) - -#define SIGRTMIN 32 -#define SIGRTMAX __NEW_NSIG - -#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__) -#define _NSIG __NEW_NSIG -#define __new_sigset_t sigset_t -#define __new_sigaction sigaction -#define __old_sigset_t old_sigset_t -#define __old_sigaction old_sigaction +#ifndef ___ASM_SPARC_SIGNAL_H +#define ___ASM_SPARC_SIGNAL_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define _NSIG __OLD_NSIG -#define __old_sigset_t sigset_t -#define __old_sigaction sigaction -#endif - -#ifndef __ASSEMBLY__ - -typedef unsigned long __old_sigset_t; - -typedef struct { - unsigned long sig[_NSIG_WORDS]; -} __new_sigset_t; - - -#ifdef __KERNEL__ -/* A SunOS sigstack */ -struct sigstack { - char *the_stack; - int cur_status; -}; +#include #endif - -/* Sigvec flags */ -#define _SV_SSTACK 1u /* This signal handler should use sig-stack */ -#define _SV_INTR 2u /* Sig return should not restart system call */ -#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */ -#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */ - -/* - * sa_flags values: SA_STACK is not currently supported, but will allow the - * usage of signal stacks by using the (now obsolete) sa_restorer field in - * the sigaction structure as a stack pointer. This is now possible due to - * the changes in signal handling. LBT 010493. - * SA_RESTART flag to get restarting signals (which were the default long ago) - */ -#define SA_NOCLDSTOP _SV_IGNCHILD -#define SA_STACK _SV_SSTACK -#define SA_ONSTACK _SV_SSTACK -#define SA_RESTART _SV_INTR -#define SA_ONESHOT _SV_RESET -#define SA_NOMASK 0x20u -#define SA_NOCLDWAIT 0x100u -#define SA_SIGINFO 0x200u - -#define SIG_BLOCK 0x01 /* for blocking signals */ -#define SIG_UNBLOCK 0x02 /* for unblocking signals */ -#define SIG_SETMASK 0x04 /* for setting the signal mask */ - -/* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - -#define MINSIGSTKSZ 4096 -#define SIGSTKSZ 16384 - -#ifdef __KERNEL__ -/* - * DJHR - * SA_STATIC_ALLOC is used for the SPARC system to indicate that this - * interrupt handler's irq structure should be statically allocated - * by the request_irq routine. - * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge - * of interrupt usage and that sucks. Also without a flag like this - * it may be possible for the free_irq routine to attempt to free - * statically allocated data.. which is NOT GOOD. - * - */ -#define SA_STATIC_ALLOC 0x8000 #endif - -#include - -#ifdef __KERNEL__ -struct __new_sigaction { - __sighandler_t sa_handler; - unsigned long sa_flags; - void (*sa_restorer)(void); /* Not used by Linux/SPARC */ - __new_sigset_t sa_mask; -}; - -struct k_sigaction { - struct __new_sigaction sa; - void __user *ka_restorer; -}; - -struct __old_sigaction { - __sighandler_t sa_handler; - __old_sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer) (void); /* not used by Linux/SPARC */ -}; - -typedef struct sigaltstack { - void __user *ss_sp; - int ss_flags; - size_t ss_size; -} stack_t; - -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - -#endif /* !(__KERNEL__) */ - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(_ASMSPARC_SIGNAL_H) */ diff --git a/include/asm-sparc/signal_32.h b/include/asm-sparc/signal_32.h new file mode 100644 index 000000000000..96a60ab03ca1 --- /dev/null +++ b/include/asm-sparc/signal_32.h @@ -0,0 +1,207 @@ +#ifndef _ASMSPARC_SIGNAL_H +#define _ASMSPARC_SIGNAL_H + +#include +#include + +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ +#include +#include +#endif +#endif + +/* On the Sparc the signal handlers get passed a 'sub-signal' code + * for certain signal types, which we document here. + */ +#define SIGHUP 1 +#define SIGINT 2 +#define SIGQUIT 3 +#define SIGILL 4 +#define SUBSIG_STACK 0 +#define SUBSIG_ILLINST 2 +#define SUBSIG_PRIVINST 3 +#define SUBSIG_BADTRAP(t) (0x80 + (t)) + +#define SIGTRAP 5 +#define SIGABRT 6 +#define SIGIOT 6 + +#define SIGEMT 7 +#define SUBSIG_TAG 10 + +#define SIGFPE 8 +#define SUBSIG_FPDISABLED 0x400 +#define SUBSIG_FPERROR 0x404 +#define SUBSIG_FPINTOVFL 0x001 +#define SUBSIG_FPSTSIG 0x002 +#define SUBSIG_IDIVZERO 0x014 +#define SUBSIG_FPINEXACT 0x0c4 +#define SUBSIG_FPDIVZERO 0x0c8 +#define SUBSIG_FPUNFLOW 0x0cc +#define SUBSIG_FPOPERROR 0x0d0 +#define SUBSIG_FPOVFLOW 0x0d4 + +#define SIGKILL 9 +#define SIGBUS 10 +#define SUBSIG_BUSTIMEOUT 1 +#define SUBSIG_ALIGNMENT 2 +#define SUBSIG_MISCERROR 5 + +#define SIGSEGV 11 +#define SUBSIG_NOMAPPING 3 +#define SUBSIG_PROTECTION 4 +#define SUBSIG_SEGERROR 5 + +#define SIGSYS 12 + +#define SIGPIPE 13 +#define SIGALRM 14 +#define SIGTERM 15 +#define SIGURG 16 + +/* SunOS values which deviate from the Linux/i386 ones */ +#define SIGSTOP 17 +#define SIGTSTP 18 +#define SIGCONT 19 +#define SIGCHLD 20 +#define SIGTTIN 21 +#define SIGTTOU 22 +#define SIGIO 23 +#define SIGPOLL SIGIO /* SysV name for SIGIO */ +#define SIGXCPU 24 +#define SIGXFSZ 25 +#define SIGVTALRM 26 +#define SIGPROF 27 +#define SIGWINCH 28 +#define SIGLOST 29 +#define SIGPWR SIGLOST +#define SIGUSR1 30 +#define SIGUSR2 31 + +/* Most things should be clean enough to redefine this at will, if care + * is taken to make libc match. + */ + +#define __OLD_NSIG 32 +#define __NEW_NSIG 64 +#define _NSIG_BPW 32 +#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW) + +#define SIGRTMIN 32 +#define SIGRTMAX __NEW_NSIG + +#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__) +#define _NSIG __NEW_NSIG +#define __new_sigset_t sigset_t +#define __new_sigaction sigaction +#define __old_sigset_t old_sigset_t +#define __old_sigaction old_sigaction +#else +#define _NSIG __OLD_NSIG +#define __old_sigset_t sigset_t +#define __old_sigaction sigaction +#endif + +#ifndef __ASSEMBLY__ + +typedef unsigned long __old_sigset_t; + +typedef struct { + unsigned long sig[_NSIG_WORDS]; +} __new_sigset_t; + + +#ifdef __KERNEL__ +/* A SunOS sigstack */ +struct sigstack { + char *the_stack; + int cur_status; +}; +#endif + +/* Sigvec flags */ +#define _SV_SSTACK 1u /* This signal handler should use sig-stack */ +#define _SV_INTR 2u /* Sig return should not restart system call */ +#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */ +#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */ + +/* + * sa_flags values: SA_STACK is not currently supported, but will allow the + * usage of signal stacks by using the (now obsolete) sa_restorer field in + * the sigaction structure as a stack pointer. This is now possible due to + * the changes in signal handling. LBT 010493. + * SA_RESTART flag to get restarting signals (which were the default long ago) + */ +#define SA_NOCLDSTOP _SV_IGNCHILD +#define SA_STACK _SV_SSTACK +#define SA_ONSTACK _SV_SSTACK +#define SA_RESTART _SV_INTR +#define SA_ONESHOT _SV_RESET +#define SA_NOMASK 0x20u +#define SA_NOCLDWAIT 0x100u +#define SA_SIGINFO 0x200u + +#define SIG_BLOCK 0x01 /* for blocking signals */ +#define SIG_UNBLOCK 0x02 /* for unblocking signals */ +#define SIG_SETMASK 0x04 /* for setting the signal mask */ + +/* + * sigaltstack controls + */ +#define SS_ONSTACK 1 +#define SS_DISABLE 2 + +#define MINSIGSTKSZ 4096 +#define SIGSTKSZ 16384 + +#ifdef __KERNEL__ +/* + * DJHR + * SA_STATIC_ALLOC is used for the SPARC system to indicate that this + * interrupt handler's irq structure should be statically allocated + * by the request_irq routine. + * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge + * of interrupt usage and that sucks. Also without a flag like this + * it may be possible for the free_irq routine to attempt to free + * statically allocated data.. which is NOT GOOD. + * + */ +#define SA_STATIC_ALLOC 0x8000 +#endif + +#include + +#ifdef __KERNEL__ +struct __new_sigaction { + __sighandler_t sa_handler; + unsigned long sa_flags; + void (*sa_restorer)(void); /* Not used by Linux/SPARC */ + __new_sigset_t sa_mask; +}; + +struct k_sigaction { + struct __new_sigaction sa; + void __user *ka_restorer; +}; + +struct __old_sigaction { + __sighandler_t sa_handler; + __old_sigset_t sa_mask; + unsigned long sa_flags; + void (*sa_restorer) (void); /* not used by Linux/SPARC */ +}; + +typedef struct sigaltstack { + void __user *ss_sp; + int ss_flags; + size_t ss_size; +} stack_t; + +#define ptrace_signal_deliver(regs, cookie) do { } while (0) + +#endif /* !(__KERNEL__) */ + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(_ASMSPARC_SIGNAL_H) */ diff --git a/include/asm-sparc/signal_64.h b/include/asm-sparc/signal_64.h new file mode 100644 index 000000000000..ab1509a101c5 --- /dev/null +++ b/include/asm-sparc/signal_64.h @@ -0,0 +1,194 @@ +#ifndef _ASMSPARC64_SIGNAL_H +#define _ASMSPARC64_SIGNAL_H + +#include + +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ +#include +#include +#endif +#endif + +/* On the Sparc the signal handlers get passed a 'sub-signal' code + * for certain signal types, which we document here. + */ +#define SIGHUP 1 +#define SIGINT 2 +#define SIGQUIT 3 +#define SIGILL 4 +#define SUBSIG_STACK 0 +#define SUBSIG_ILLINST 2 +#define SUBSIG_PRIVINST 3 +#define SUBSIG_BADTRAP(t) (0x80 + (t)) + +#define SIGTRAP 5 +#define SIGABRT 6 +#define SIGIOT 6 + +#define SIGEMT 7 +#define SUBSIG_TAG 10 + +#define SIGFPE 8 +#define SUBSIG_FPDISABLED 0x400 +#define SUBSIG_FPERROR 0x404 +#define SUBSIG_FPINTOVFL 0x001 +#define SUBSIG_FPSTSIG 0x002 +#define SUBSIG_IDIVZERO 0x014 +#define SUBSIG_FPINEXACT 0x0c4 +#define SUBSIG_FPDIVZERO 0x0c8 +#define SUBSIG_FPUNFLOW 0x0cc +#define SUBSIG_FPOPERROR 0x0d0 +#define SUBSIG_FPOVFLOW 0x0d4 + +#define SIGKILL 9 +#define SIGBUS 10 +#define SUBSIG_BUSTIMEOUT 1 +#define SUBSIG_ALIGNMENT 2 +#define SUBSIG_MISCERROR 5 + +#define SIGSEGV 11 +#define SUBSIG_NOMAPPING 3 +#define SUBSIG_PROTECTION 4 +#define SUBSIG_SEGERROR 5 + +#define SIGSYS 12 + +#define SIGPIPE 13 +#define SIGALRM 14 +#define SIGTERM 15 +#define SIGURG 16 + +/* SunOS values which deviate from the Linux/i386 ones */ +#define SIGSTOP 17 +#define SIGTSTP 18 +#define SIGCONT 19 +#define SIGCHLD 20 +#define SIGTTIN 21 +#define SIGTTOU 22 +#define SIGIO 23 +#define SIGPOLL SIGIO /* SysV name for SIGIO */ +#define SIGXCPU 24 +#define SIGXFSZ 25 +#define SIGVTALRM 26 +#define SIGPROF 27 +#define SIGWINCH 28 +#define SIGLOST 29 +#define SIGPWR SIGLOST +#define SIGUSR1 30 +#define SIGUSR2 31 + +/* Most things should be clean enough to redefine this at will, if care + is taken to make libc match. */ + +#define __OLD_NSIG 32 +#define __NEW_NSIG 64 +#define _NSIG_BPW 64 +#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW) + +#define SIGRTMIN 32 +#define SIGRTMAX __NEW_NSIG + +#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__) +#define _NSIG __NEW_NSIG +#define __new_sigset_t sigset_t +#define __new_sigaction sigaction +#define __new_sigaction32 sigaction32 +#define __old_sigset_t old_sigset_t +#define __old_sigaction old_sigaction +#define __old_sigaction32 old_sigaction32 +#else +#define _NSIG __OLD_NSIG +#define NSIG _NSIG +#define __old_sigset_t sigset_t +#define __old_sigaction sigaction +#define __old_sigaction32 sigaction32 +#endif + +#ifndef __ASSEMBLY__ + +typedef unsigned long __old_sigset_t; /* at least 32 bits */ + +typedef struct { + unsigned long sig[_NSIG_WORDS]; +} __new_sigset_t; + +/* A SunOS sigstack */ +struct sigstack { + /* XXX 32-bit pointers pinhead XXX */ + char *the_stack; + int cur_status; +}; + +/* Sigvec flags */ +#define _SV_SSTACK 1u /* This signal handler should use sig-stack */ +#define _SV_INTR 2u /* Sig return should not restart system call */ +#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */ +#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */ + +/* + * sa_flags values: SA_STACK is not currently supported, but will allow the + * usage of signal stacks by using the (now obsolete) sa_restorer field in + * the sigaction structure as a stack pointer. This is now possible due to + * the changes in signal handling. LBT 010493. + * SA_RESTART flag to get restarting signals (which were the default long ago) + */ +#define SA_NOCLDSTOP _SV_IGNCHILD +#define SA_STACK _SV_SSTACK +#define SA_ONSTACK _SV_SSTACK +#define SA_RESTART _SV_INTR +#define SA_ONESHOT _SV_RESET +#define SA_NOMASK 0x20u +#define SA_NOCLDWAIT 0x100u +#define SA_SIGINFO 0x200u + + +#define SIG_BLOCK 0x01 /* for blocking signals */ +#define SIG_UNBLOCK 0x02 /* for unblocking signals */ +#define SIG_SETMASK 0x04 /* for setting the signal mask */ + +/* + * sigaltstack controls + */ +#define SS_ONSTACK 1 +#define SS_DISABLE 2 + +#define MINSIGSTKSZ 4096 +#define SIGSTKSZ 16384 + +#include + +struct __new_sigaction { + __sighandler_t sa_handler; + unsigned long sa_flags; + __sigrestore_t sa_restorer; /* not used by Linux/SPARC yet */ + __new_sigset_t sa_mask; +}; + +struct __old_sigaction { + __sighandler_t sa_handler; + __old_sigset_t sa_mask; + unsigned long sa_flags; + void (*sa_restorer)(void); /* not used by Linux/SPARC yet */ +}; + +typedef struct sigaltstack { + void __user *ss_sp; + int ss_flags; + size_t ss_size; +} stack_t; + +#ifdef __KERNEL__ + +struct k_sigaction { + struct __new_sigaction sa; + void __user *ka_restorer; +}; + +#define ptrace_signal_deliver(regs, cookie) do { } while (0) + +#endif /* !(__KERNEL__) */ + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(_ASMSPARC64_SIGNAL_H) */ diff --git a/include/asm-sparc/smp.h b/include/asm-sparc/smp.h index b61e74bea06a..1f9dedfbabd8 100644 --- a/include/asm-sparc/smp.h +++ b/include/asm-sparc/smp.h @@ -1,173 +1,8 @@ -/* smp.h: Sparc specific SMP stuff. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC_SMP_H -#define _SPARC_SMP_H - -#include -#include -#include - -#ifndef __ASSEMBLY__ - -#include - -#endif /* __ASSEMBLY__ */ - -#ifdef CONFIG_SMP - -#ifndef __ASSEMBLY__ - -#include -#include -#include - -/* - * Private routines/data - */ - -extern unsigned char boot_cpu_id; -extern cpumask_t phys_cpu_present_map; -#define cpu_possible_map phys_cpu_present_map - -typedef void (*smpfunc_t)(unsigned long, unsigned long, unsigned long, - unsigned long, unsigned long); - -/* - * General functions that each host system must provide. - */ - -void sun4m_init_smp(void); -void sun4d_init_smp(void); - -void smp_callin(void); -void smp_boot_cpus(void); -void smp_store_cpu_info(int); - -struct seq_file; -void smp_bogo(struct seq_file *); -void smp_info(struct seq_file *); - -BTFIXUPDEF_CALL(void, smp_cross_call, smpfunc_t, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) -BTFIXUPDEF_CALL(int, __hard_smp_processor_id, void) -BTFIXUPDEF_BLACKBOX(hard_smp_processor_id) -BTFIXUPDEF_BLACKBOX(load_current) - -#define smp_cross_call(func,arg1,arg2,arg3,arg4,arg5) BTFIXUP_CALL(smp_cross_call)(func,arg1,arg2,arg3,arg4,arg5) - -static inline void xc0(smpfunc_t func) { smp_cross_call(func, 0, 0, 0, 0, 0); } -static inline void xc1(smpfunc_t func, unsigned long arg1) -{ smp_cross_call(func, arg1, 0, 0, 0, 0); } -static inline void xc2(smpfunc_t func, unsigned long arg1, unsigned long arg2) -{ smp_cross_call(func, arg1, arg2, 0, 0, 0); } -static inline void xc3(smpfunc_t func, unsigned long arg1, unsigned long arg2, - unsigned long arg3) -{ smp_cross_call(func, arg1, arg2, arg3, 0, 0); } -static inline void xc4(smpfunc_t func, unsigned long arg1, unsigned long arg2, - unsigned long arg3, unsigned long arg4) -{ smp_cross_call(func, arg1, arg2, arg3, arg4, 0); } -static inline void xc5(smpfunc_t func, unsigned long arg1, unsigned long arg2, - unsigned long arg3, unsigned long arg4, unsigned long arg5) -{ smp_cross_call(func, arg1, arg2, arg3, arg4, arg5); } - -static inline int smp_call_function(void (*func)(void *info), void *info, int wait) -{ - xc1((smpfunc_t)func, (unsigned long)info); - return 0; -} - -static inline int cpu_logical_map(int cpu) -{ - return cpu; -} - -static inline int hard_smp4m_processor_id(void) -{ - int cpuid; - - __asm__ __volatile__("rd %%tbr, %0\n\t" - "srl %0, 12, %0\n\t" - "and %0, 3, %0\n\t" : - "=&r" (cpuid)); - return cpuid; -} - -static inline int hard_smp4d_processor_id(void) -{ - int cpuid; - - __asm__ __volatile__("lda [%%g0] %1, %0\n\t" : - "=&r" (cpuid) : "i" (ASI_M_VIKING_TMP1)); - return cpuid; -} - -#ifndef MODULE -static inline int hard_smp_processor_id(void) -{ - int cpuid; - - /* Black box - sun4m - __asm__ __volatile__("rd %%tbr, %0\n\t" - "srl %0, 12, %0\n\t" - "and %0, 3, %0\n\t" : - "=&r" (cpuid)); - - sun4d - __asm__ __volatile__("lda [%g0] ASI_M_VIKING_TMP1, %0\n\t" - "nop; nop" : - "=&r" (cpuid)); - See btfixup.h and btfixupprep.c to understand how a blackbox works. - */ - __asm__ __volatile__("sethi %%hi(___b_hard_smp_processor_id), %0\n\t" - "sethi %%hi(boot_cpu_id), %0\n\t" - "ldub [%0 + %%lo(boot_cpu_id)], %0\n\t" : - "=&r" (cpuid)); - return cpuid; -} +#ifndef ___ASM_SPARC_SMP_H +#define ___ASM_SPARC_SMP_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -static inline int hard_smp_processor_id(void) -{ - int cpuid; - - __asm__ __volatile__("mov %%o7, %%g1\n\t" - "call ___f___hard_smp_processor_id\n\t" - " nop\n\t" - "mov %%g2, %0\n\t" : "=r"(cpuid) : : "g1", "g2"); - return cpuid; -} +#include +#endif #endif - -#define raw_smp_processor_id() (current_thread_info()->cpu) - -#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier -#define prof_counter(__cpu) cpu_data(__cpu).counter - -void smp_setup_cpu_possible_map(void); - -#endif /* !(__ASSEMBLY__) */ - -/* Sparc specific messages. */ -#define MSG_CROSS_CALL 0x0005 /* run func on cpus */ - -/* Empirical PROM processor mailbox constants. If the per-cpu mailbox - * contains something other than one of these then the ipi is from - * Linux's active_kernel_processor. This facility exists so that - * the boot monitor can capture all the other cpus when one catches - * a watchdog reset or the user enters the monitor using L1-A keys. - */ -#define MBOX_STOPCPU 0xFB -#define MBOX_IDLECPU 0xFC -#define MBOX_IDLECPU2 0xFD -#define MBOX_STOPCPU2 0xFE - -#else /* SMP */ - -#define hard_smp_processor_id() 0 -#define smp_setup_cpu_possible_map() do { } while (0) - -#endif /* !(SMP) */ - -#define NO_PROC_ID 0xFF - -#endif /* !(_SPARC_SMP_H) */ diff --git a/include/asm-sparc/smp_32.h b/include/asm-sparc/smp_32.h new file mode 100644 index 000000000000..7201752cf934 --- /dev/null +++ b/include/asm-sparc/smp_32.h @@ -0,0 +1,173 @@ +/* smp.h: Sparc specific SMP stuff. + * + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SPARC_SMP_H +#define _SPARC_SMP_H + +#include +#include +#include + +#ifndef __ASSEMBLY__ + +#include + +#endif /* __ASSEMBLY__ */ + +#ifdef CONFIG_SMP + +#ifndef __ASSEMBLY__ + +#include +#include +#include + +/* + * Private routines/data + */ + +extern unsigned char boot_cpu_id; +extern cpumask_t phys_cpu_present_map; +#define cpu_possible_map phys_cpu_present_map + +typedef void (*smpfunc_t)(unsigned long, unsigned long, unsigned long, + unsigned long, unsigned long); + +/* + * General functions that each host system must provide. + */ + +void sun4m_init_smp(void); +void sun4d_init_smp(void); + +void smp_callin(void); +void smp_boot_cpus(void); +void smp_store_cpu_info(int); + +struct seq_file; +void smp_bogo(struct seq_file *); +void smp_info(struct seq_file *); + +BTFIXUPDEF_CALL(void, smp_cross_call, smpfunc_t, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) +BTFIXUPDEF_CALL(int, __hard_smp_processor_id, void) +BTFIXUPDEF_BLACKBOX(hard_smp_processor_id) +BTFIXUPDEF_BLACKBOX(load_current) + +#define smp_cross_call(func,arg1,arg2,arg3,arg4,arg5) BTFIXUP_CALL(smp_cross_call)(func,arg1,arg2,arg3,arg4,arg5) + +static inline void xc0(smpfunc_t func) { smp_cross_call(func, 0, 0, 0, 0, 0); } +static inline void xc1(smpfunc_t func, unsigned long arg1) +{ smp_cross_call(func, arg1, 0, 0, 0, 0); } +static inline void xc2(smpfunc_t func, unsigned long arg1, unsigned long arg2) +{ smp_cross_call(func, arg1, arg2, 0, 0, 0); } +static inline void xc3(smpfunc_t func, unsigned long arg1, unsigned long arg2, + unsigned long arg3) +{ smp_cross_call(func, arg1, arg2, arg3, 0, 0); } +static inline void xc4(smpfunc_t func, unsigned long arg1, unsigned long arg2, + unsigned long arg3, unsigned long arg4) +{ smp_cross_call(func, arg1, arg2, arg3, arg4, 0); } +static inline void xc5(smpfunc_t func, unsigned long arg1, unsigned long arg2, + unsigned long arg3, unsigned long arg4, unsigned long arg5) +{ smp_cross_call(func, arg1, arg2, arg3, arg4, arg5); } + +static inline int smp_call_function(void (*func)(void *info), void *info, int wait) +{ + xc1((smpfunc_t)func, (unsigned long)info); + return 0; +} + +static inline int cpu_logical_map(int cpu) +{ + return cpu; +} + +static inline int hard_smp4m_processor_id(void) +{ + int cpuid; + + __asm__ __volatile__("rd %%tbr, %0\n\t" + "srl %0, 12, %0\n\t" + "and %0, 3, %0\n\t" : + "=&r" (cpuid)); + return cpuid; +} + +static inline int hard_smp4d_processor_id(void) +{ + int cpuid; + + __asm__ __volatile__("lda [%%g0] %1, %0\n\t" : + "=&r" (cpuid) : "i" (ASI_M_VIKING_TMP1)); + return cpuid; +} + +#ifndef MODULE +static inline int hard_smp_processor_id(void) +{ + int cpuid; + + /* Black box - sun4m + __asm__ __volatile__("rd %%tbr, %0\n\t" + "srl %0, 12, %0\n\t" + "and %0, 3, %0\n\t" : + "=&r" (cpuid)); + - sun4d + __asm__ __volatile__("lda [%g0] ASI_M_VIKING_TMP1, %0\n\t" + "nop; nop" : + "=&r" (cpuid)); + See btfixup.h and btfixupprep.c to understand how a blackbox works. + */ + __asm__ __volatile__("sethi %%hi(___b_hard_smp_processor_id), %0\n\t" + "sethi %%hi(boot_cpu_id), %0\n\t" + "ldub [%0 + %%lo(boot_cpu_id)], %0\n\t" : + "=&r" (cpuid)); + return cpuid; +} +#else +static inline int hard_smp_processor_id(void) +{ + int cpuid; + + __asm__ __volatile__("mov %%o7, %%g1\n\t" + "call ___f___hard_smp_processor_id\n\t" + " nop\n\t" + "mov %%g2, %0\n\t" : "=r"(cpuid) : : "g1", "g2"); + return cpuid; +} +#endif + +#define raw_smp_processor_id() (current_thread_info()->cpu) + +#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier +#define prof_counter(__cpu) cpu_data(__cpu).counter + +void smp_setup_cpu_possible_map(void); + +#endif /* !(__ASSEMBLY__) */ + +/* Sparc specific messages. */ +#define MSG_CROSS_CALL 0x0005 /* run func on cpus */ + +/* Empirical PROM processor mailbox constants. If the per-cpu mailbox + * contains something other than one of these then the ipi is from + * Linux's active_kernel_processor. This facility exists so that + * the boot monitor can capture all the other cpus when one catches + * a watchdog reset or the user enters the monitor using L1-A keys. + */ +#define MBOX_STOPCPU 0xFB +#define MBOX_IDLECPU 0xFC +#define MBOX_IDLECPU2 0xFD +#define MBOX_STOPCPU2 0xFE + +#else /* SMP */ + +#define hard_smp_processor_id() 0 +#define smp_setup_cpu_possible_map() do { } while (0) + +#endif /* !(SMP) */ + +#define NO_PROC_ID 0xFF + +#endif /* !(_SPARC_SMP_H) */ diff --git a/include/asm-sparc/smp_64.h b/include/asm-sparc/smp_64.h new file mode 100644 index 000000000000..4cfe09c51f1f --- /dev/null +++ b/include/asm-sparc/smp_64.h @@ -0,0 +1,64 @@ +/* smp.h: Sparc64 specific SMP stuff. + * + * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net) + */ + +#ifndef _SPARC64_SMP_H +#define _SPARC64_SMP_H + +#include +#include +#include +#include + +#ifndef __ASSEMBLY__ + +#include +#include + +#endif /* !(__ASSEMBLY__) */ + +#ifdef CONFIG_SMP + +#ifndef __ASSEMBLY__ + +/* + * Private routines/data + */ + +#include +#include +#include + +DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); +extern cpumask_t cpu_core_map[NR_CPUS]; +extern int sparc64_multi_core; + +/* + * General functions that each host system must provide. + */ + +extern int hard_smp_processor_id(void); +#define raw_smp_processor_id() (current_thread_info()->cpu) + +extern void smp_fill_in_sib_core_maps(void); +extern void cpu_play_dead(void); + +extern void smp_fetch_global_regs(void); + +#ifdef CONFIG_HOTPLUG_CPU +extern int __cpu_disable(void); +extern void __cpu_die(unsigned int cpu); +#endif + +#endif /* !(__ASSEMBLY__) */ + +#else + +#define hard_smp_processor_id() 0 +#define smp_fill_in_sib_core_maps() do { } while (0) +#define smp_fetch_global_regs() do { } while (0) + +#endif /* !(CONFIG_SMP) */ + +#endif /* !(_SPARC64_SMP_H) */ diff --git a/include/asm-sparc/spinlock.h b/include/asm-sparc/spinlock.h index de2249b267c6..3b71c50b72eb 100644 --- a/include/asm-sparc/spinlock.h +++ b/include/asm-sparc/spinlock.h @@ -1,192 +1,8 @@ -/* spinlock.h: 32-bit Sparc spinlock support. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __SPARC_SPINLOCK_H -#define __SPARC_SPINLOCK_H - -#include /* For NR_CPUS */ - -#ifndef __ASSEMBLY__ - -#include - -#define __raw_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0) - -#define __raw_spin_unlock_wait(lock) \ - do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) - -static inline void __raw_spin_lock(raw_spinlock_t *lock) -{ - __asm__ __volatile__( - "\n1:\n\t" - "ldstub [%0], %%g2\n\t" - "orcc %%g2, 0x0, %%g0\n\t" - "bne,a 2f\n\t" - " ldub [%0], %%g2\n\t" - ".subsection 2\n" - "2:\n\t" - "orcc %%g2, 0x0, %%g0\n\t" - "bne,a 2b\n\t" - " ldub [%0], %%g2\n\t" - "b,a 1b\n\t" - ".previous\n" - : /* no outputs */ - : "r" (lock) - : "g2", "memory", "cc"); -} - -static inline int __raw_spin_trylock(raw_spinlock_t *lock) -{ - unsigned int result; - __asm__ __volatile__("ldstub [%1], %0" - : "=r" (result) - : "r" (lock) - : "memory"); - return (result == 0); -} - -static inline void __raw_spin_unlock(raw_spinlock_t *lock) -{ - __asm__ __volatile__("stb %%g0, [%0]" : : "r" (lock) : "memory"); -} - -/* Read-write spinlocks, allowing multiple readers - * but only one writer. - * - * NOTE! it is quite common to have readers in interrupts - * but no interrupt writers. For those circumstances we - * can "mix" irq-safe locks - any writer needs to get a - * irq-safe write-lock, but readers can get non-irqsafe - * read-locks. - * - * XXX This might create some problems with my dual spinlock - * XXX scheme, deadlocks etc. -DaveM - * - * Sort of like atomic_t's on Sparc, but even more clever. - * - * ------------------------------------ - * | 24-bit counter | wlock | raw_rwlock_t - * ------------------------------------ - * 31 8 7 0 - * - * wlock signifies the one writer is in or somebody is updating - * counter. For a writer, if he successfully acquires the wlock, - * but counter is non-zero, he has to release the lock and wait, - * till both counter and wlock are zero. - * - * Unfortunately this scheme limits us to ~16,000,000 cpus. - */ -static inline void __read_lock(raw_rwlock_t *rw) -{ - register raw_rwlock_t *lp asm("g1"); - lp = rw; - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___rw_read_enter\n\t" - " ldstub [%%g1 + 3], %%g2\n" - : /* no outputs */ - : "r" (lp) - : "g2", "g4", "memory", "cc"); -} - -#define __raw_read_lock(lock) \ -do { unsigned long flags; \ - local_irq_save(flags); \ - __read_lock(lock); \ - local_irq_restore(flags); \ -} while(0) - -static inline void __read_unlock(raw_rwlock_t *rw) -{ - register raw_rwlock_t *lp asm("g1"); - lp = rw; - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___rw_read_exit\n\t" - " ldstub [%%g1 + 3], %%g2\n" - : /* no outputs */ - : "r" (lp) - : "g2", "g4", "memory", "cc"); -} - -#define __raw_read_unlock(lock) \ -do { unsigned long flags; \ - local_irq_save(flags); \ - __read_unlock(lock); \ - local_irq_restore(flags); \ -} while(0) - -static inline void __raw_write_lock(raw_rwlock_t *rw) -{ - register raw_rwlock_t *lp asm("g1"); - lp = rw; - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___rw_write_enter\n\t" - " ldstub [%%g1 + 3], %%g2\n" - : /* no outputs */ - : "r" (lp) - : "g2", "g4", "memory", "cc"); - *(volatile __u32 *)&lp->lock = ~0U; -} - -static inline int __raw_write_trylock(raw_rwlock_t *rw) -{ - unsigned int val; - - __asm__ __volatile__("ldstub [%1 + 3], %0" - : "=r" (val) - : "r" (&rw->lock) - : "memory"); - - if (val == 0) { - val = rw->lock & ~0xff; - if (val) - ((volatile u8*)&rw->lock)[3] = 0; - else - *(volatile u32*)&rw->lock = ~0U; - } - - return (val == 0); -} - -static inline int __read_trylock(raw_rwlock_t *rw) -{ - register raw_rwlock_t *lp asm("g1"); - register int res asm("o0"); - lp = rw; - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___rw_read_try\n\t" - " ldstub [%%g1 + 3], %%g2\n" - : "=r" (res) - : "r" (lp) - : "g2", "g4", "memory", "cc"); - return res; -} - -#define __raw_read_trylock(lock) \ -({ unsigned long flags; \ - int res; \ - local_irq_save(flags); \ - res = __read_trylock(lock); \ - local_irq_restore(flags); \ - res; \ -}) - -#define __raw_write_unlock(rw) do { (rw)->lock = 0; } while(0) - -#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) - -#define _raw_spin_relax(lock) cpu_relax() -#define _raw_read_relax(lock) cpu_relax() -#define _raw_write_relax(lock) cpu_relax() - -#define __raw_read_can_lock(rw) (!((rw)->lock & 0xff)) -#define __raw_write_can_lock(rw) (!(rw)->lock) - -#endif /* !(__ASSEMBLY__) */ - -#endif /* __SPARC_SPINLOCK_H */ +#ifndef ___ASM_SPARC_SPINLOCK_H +#define ___ASM_SPARC_SPINLOCK_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/spinlock_32.h b/include/asm-sparc/spinlock_32.h new file mode 100644 index 000000000000..de2249b267c6 --- /dev/null +++ b/include/asm-sparc/spinlock_32.h @@ -0,0 +1,192 @@ +/* spinlock.h: 32-bit Sparc spinlock support. + * + * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef __SPARC_SPINLOCK_H +#define __SPARC_SPINLOCK_H + +#include /* For NR_CPUS */ + +#ifndef __ASSEMBLY__ + +#include + +#define __raw_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0) + +#define __raw_spin_unlock_wait(lock) \ + do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) + +static inline void __raw_spin_lock(raw_spinlock_t *lock) +{ + __asm__ __volatile__( + "\n1:\n\t" + "ldstub [%0], %%g2\n\t" + "orcc %%g2, 0x0, %%g0\n\t" + "bne,a 2f\n\t" + " ldub [%0], %%g2\n\t" + ".subsection 2\n" + "2:\n\t" + "orcc %%g2, 0x0, %%g0\n\t" + "bne,a 2b\n\t" + " ldub [%0], %%g2\n\t" + "b,a 1b\n\t" + ".previous\n" + : /* no outputs */ + : "r" (lock) + : "g2", "memory", "cc"); +} + +static inline int __raw_spin_trylock(raw_spinlock_t *lock) +{ + unsigned int result; + __asm__ __volatile__("ldstub [%1], %0" + : "=r" (result) + : "r" (lock) + : "memory"); + return (result == 0); +} + +static inline void __raw_spin_unlock(raw_spinlock_t *lock) +{ + __asm__ __volatile__("stb %%g0, [%0]" : : "r" (lock) : "memory"); +} + +/* Read-write spinlocks, allowing multiple readers + * but only one writer. + * + * NOTE! it is quite common to have readers in interrupts + * but no interrupt writers. For those circumstances we + * can "mix" irq-safe locks - any writer needs to get a + * irq-safe write-lock, but readers can get non-irqsafe + * read-locks. + * + * XXX This might create some problems with my dual spinlock + * XXX scheme, deadlocks etc. -DaveM + * + * Sort of like atomic_t's on Sparc, but even more clever. + * + * ------------------------------------ + * | 24-bit counter | wlock | raw_rwlock_t + * ------------------------------------ + * 31 8 7 0 + * + * wlock signifies the one writer is in or somebody is updating + * counter. For a writer, if he successfully acquires the wlock, + * but counter is non-zero, he has to release the lock and wait, + * till both counter and wlock are zero. + * + * Unfortunately this scheme limits us to ~16,000,000 cpus. + */ +static inline void __read_lock(raw_rwlock_t *rw) +{ + register raw_rwlock_t *lp asm("g1"); + lp = rw; + __asm__ __volatile__( + "mov %%o7, %%g4\n\t" + "call ___rw_read_enter\n\t" + " ldstub [%%g1 + 3], %%g2\n" + : /* no outputs */ + : "r" (lp) + : "g2", "g4", "memory", "cc"); +} + +#define __raw_read_lock(lock) \ +do { unsigned long flags; \ + local_irq_save(flags); \ + __read_lock(lock); \ + local_irq_restore(flags); \ +} while(0) + +static inline void __read_unlock(raw_rwlock_t *rw) +{ + register raw_rwlock_t *lp asm("g1"); + lp = rw; + __asm__ __volatile__( + "mov %%o7, %%g4\n\t" + "call ___rw_read_exit\n\t" + " ldstub [%%g1 + 3], %%g2\n" + : /* no outputs */ + : "r" (lp) + : "g2", "g4", "memory", "cc"); +} + +#define __raw_read_unlock(lock) \ +do { unsigned long flags; \ + local_irq_save(flags); \ + __read_unlock(lock); \ + local_irq_restore(flags); \ +} while(0) + +static inline void __raw_write_lock(raw_rwlock_t *rw) +{ + register raw_rwlock_t *lp asm("g1"); + lp = rw; + __asm__ __volatile__( + "mov %%o7, %%g4\n\t" + "call ___rw_write_enter\n\t" + " ldstub [%%g1 + 3], %%g2\n" + : /* no outputs */ + : "r" (lp) + : "g2", "g4", "memory", "cc"); + *(volatile __u32 *)&lp->lock = ~0U; +} + +static inline int __raw_write_trylock(raw_rwlock_t *rw) +{ + unsigned int val; + + __asm__ __volatile__("ldstub [%1 + 3], %0" + : "=r" (val) + : "r" (&rw->lock) + : "memory"); + + if (val == 0) { + val = rw->lock & ~0xff; + if (val) + ((volatile u8*)&rw->lock)[3] = 0; + else + *(volatile u32*)&rw->lock = ~0U; + } + + return (val == 0); +} + +static inline int __read_trylock(raw_rwlock_t *rw) +{ + register raw_rwlock_t *lp asm("g1"); + register int res asm("o0"); + lp = rw; + __asm__ __volatile__( + "mov %%o7, %%g4\n\t" + "call ___rw_read_try\n\t" + " ldstub [%%g1 + 3], %%g2\n" + : "=r" (res) + : "r" (lp) + : "g2", "g4", "memory", "cc"); + return res; +} + +#define __raw_read_trylock(lock) \ +({ unsigned long flags; \ + int res; \ + local_irq_save(flags); \ + res = __read_trylock(lock); \ + local_irq_restore(flags); \ + res; \ +}) + +#define __raw_write_unlock(rw) do { (rw)->lock = 0; } while(0) + +#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) + +#define _raw_spin_relax(lock) cpu_relax() +#define _raw_read_relax(lock) cpu_relax() +#define _raw_write_relax(lock) cpu_relax() + +#define __raw_read_can_lock(rw) (!((rw)->lock & 0xff)) +#define __raw_write_can_lock(rw) (!(rw)->lock) + +#endif /* !(__ASSEMBLY__) */ + +#endif /* __SPARC_SPINLOCK_H */ diff --git a/include/asm-sparc/spinlock_64.h b/include/asm-sparc/spinlock_64.h new file mode 100644 index 000000000000..0006fe9f8c7a --- /dev/null +++ b/include/asm-sparc/spinlock_64.h @@ -0,0 +1,250 @@ +/* spinlock.h: 64-bit Sparc spinlock support. + * + * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef __SPARC64_SPINLOCK_H +#define __SPARC64_SPINLOCK_H + +#include /* For NR_CPUS */ + +#ifndef __ASSEMBLY__ + +/* To get debugging spinlocks which detect and catch + * deadlock situations, set CONFIG_DEBUG_SPINLOCK + * and rebuild your kernel. + */ + +/* All of these locking primitives are expected to work properly + * even in an RMO memory model, which currently is what the kernel + * runs in. + * + * There is another issue. Because we play games to save cycles + * in the non-contention case, we need to be extra careful about + * branch targets into the "spinning" code. They live in their + * own section, but the newer V9 branches have a shorter range + * than the traditional 32-bit sparc branch variants. The rule + * is that the branches that go into and out of the spinner sections + * must be pre-V9 branches. + */ + +#define __raw_spin_is_locked(lp) ((lp)->lock != 0) + +#define __raw_spin_unlock_wait(lp) \ + do { rmb(); \ + } while((lp)->lock) + +static inline void __raw_spin_lock(raw_spinlock_t *lock) +{ + unsigned long tmp; + + __asm__ __volatile__( +"1: ldstub [%1], %0\n" +" membar #StoreLoad | #StoreStore\n" +" brnz,pn %0, 2f\n" +" nop\n" +" .subsection 2\n" +"2: ldub [%1], %0\n" +" membar #LoadLoad\n" +" brnz,pt %0, 2b\n" +" nop\n" +" ba,a,pt %%xcc, 1b\n" +" .previous" + : "=&r" (tmp) + : "r" (lock) + : "memory"); +} + +static inline int __raw_spin_trylock(raw_spinlock_t *lock) +{ + unsigned long result; + + __asm__ __volatile__( +" ldstub [%1], %0\n" +" membar #StoreLoad | #StoreStore" + : "=r" (result) + : "r" (lock) + : "memory"); + + return (result == 0UL); +} + +static inline void __raw_spin_unlock(raw_spinlock_t *lock) +{ + __asm__ __volatile__( +" membar #StoreStore | #LoadStore\n" +" stb %%g0, [%0]" + : /* No outputs */ + : "r" (lock) + : "memory"); +} + +static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) +{ + unsigned long tmp1, tmp2; + + __asm__ __volatile__( +"1: ldstub [%2], %0\n" +" membar #StoreLoad | #StoreStore\n" +" brnz,pn %0, 2f\n" +" nop\n" +" .subsection 2\n" +"2: rdpr %%pil, %1\n" +" wrpr %3, %%pil\n" +"3: ldub [%2], %0\n" +" membar #LoadLoad\n" +" brnz,pt %0, 3b\n" +" nop\n" +" ba,pt %%xcc, 1b\n" +" wrpr %1, %%pil\n" +" .previous" + : "=&r" (tmp1), "=&r" (tmp2) + : "r"(lock), "r"(flags) + : "memory"); +} + +/* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */ + +static void inline __read_lock(raw_rwlock_t *lock) +{ + unsigned long tmp1, tmp2; + + __asm__ __volatile__ ( +"1: ldsw [%2], %0\n" +" brlz,pn %0, 2f\n" +"4: add %0, 1, %1\n" +" cas [%2], %0, %1\n" +" cmp %0, %1\n" +" membar #StoreLoad | #StoreStore\n" +" bne,pn %%icc, 1b\n" +" nop\n" +" .subsection 2\n" +"2: ldsw [%2], %0\n" +" membar #LoadLoad\n" +" brlz,pt %0, 2b\n" +" nop\n" +" ba,a,pt %%xcc, 4b\n" +" .previous" + : "=&r" (tmp1), "=&r" (tmp2) + : "r" (lock) + : "memory"); +} + +static int inline __read_trylock(raw_rwlock_t *lock) +{ + int tmp1, tmp2; + + __asm__ __volatile__ ( +"1: ldsw [%2], %0\n" +" brlz,a,pn %0, 2f\n" +" mov 0, %0\n" +" add %0, 1, %1\n" +" cas [%2], %0, %1\n" +" cmp %0, %1\n" +" membar #StoreLoad | #StoreStore\n" +" bne,pn %%icc, 1b\n" +" mov 1, %0\n" +"2:" + : "=&r" (tmp1), "=&r" (tmp2) + : "r" (lock) + : "memory"); + + return tmp1; +} + +static void inline __read_unlock(raw_rwlock_t *lock) +{ + unsigned long tmp1, tmp2; + + __asm__ __volatile__( +" membar #StoreLoad | #LoadLoad\n" +"1: lduw [%2], %0\n" +" sub %0, 1, %1\n" +" cas [%2], %0, %1\n" +" cmp %0, %1\n" +" bne,pn %%xcc, 1b\n" +" nop" + : "=&r" (tmp1), "=&r" (tmp2) + : "r" (lock) + : "memory"); +} + +static void inline __write_lock(raw_rwlock_t *lock) +{ + unsigned long mask, tmp1, tmp2; + + mask = 0x80000000UL; + + __asm__ __volatile__( +"1: lduw [%2], %0\n" +" brnz,pn %0, 2f\n" +"4: or %0, %3, %1\n" +" cas [%2], %0, %1\n" +" cmp %0, %1\n" +" membar #StoreLoad | #StoreStore\n" +" bne,pn %%icc, 1b\n" +" nop\n" +" .subsection 2\n" +"2: lduw [%2], %0\n" +" membar #LoadLoad\n" +" brnz,pt %0, 2b\n" +" nop\n" +" ba,a,pt %%xcc, 4b\n" +" .previous" + : "=&r" (tmp1), "=&r" (tmp2) + : "r" (lock), "r" (mask) + : "memory"); +} + +static void inline __write_unlock(raw_rwlock_t *lock) +{ + __asm__ __volatile__( +" membar #LoadStore | #StoreStore\n" +" stw %%g0, [%0]" + : /* no outputs */ + : "r" (lock) + : "memory"); +} + +static int inline __write_trylock(raw_rwlock_t *lock) +{ + unsigned long mask, tmp1, tmp2, result; + + mask = 0x80000000UL; + + __asm__ __volatile__( +" mov 0, %2\n" +"1: lduw [%3], %0\n" +" brnz,pn %0, 2f\n" +" or %0, %4, %1\n" +" cas [%3], %0, %1\n" +" cmp %0, %1\n" +" membar #StoreLoad | #StoreStore\n" +" bne,pn %%icc, 1b\n" +" nop\n" +" mov 1, %2\n" +"2:" + : "=&r" (tmp1), "=&r" (tmp2), "=&r" (result) + : "r" (lock), "r" (mask) + : "memory"); + + return result; +} + +#define __raw_read_lock(p) __read_lock(p) +#define __raw_read_trylock(p) __read_trylock(p) +#define __raw_read_unlock(p) __read_unlock(p) +#define __raw_write_lock(p) __write_lock(p) +#define __raw_write_unlock(p) __write_unlock(p) +#define __raw_write_trylock(p) __write_trylock(p) + +#define __raw_read_can_lock(rw) (!((rw)->lock & 0x80000000UL)) +#define __raw_write_can_lock(rw) (!(rw)->lock) + +#define _raw_spin_relax(lock) cpu_relax() +#define _raw_read_relax(lock) cpu_relax() +#define _raw_write_relax(lock) cpu_relax() + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC64_SPINLOCK_H) */ diff --git a/include/asm-sparc/stat.h b/include/asm-sparc/stat.h index 2299e1d5d94c..9fdcaf8c9cd3 100644 --- a/include/asm-sparc/stat.h +++ b/include/asm-sparc/stat.h @@ -1,76 +1,8 @@ -#ifndef _SPARC_STAT_H -#define _SPARC_STAT_H - -#include - -struct __old_kernel_stat { - unsigned short st_dev; - unsigned short st_ino; - unsigned short st_mode; - unsigned short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - unsigned short st_rdev; - unsigned long st_size; - unsigned long st_atime; - unsigned long st_mtime; - unsigned long st_ctime; -}; - -struct stat { - unsigned short st_dev; - unsigned long st_ino; - unsigned short st_mode; - short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - unsigned short st_rdev; - long st_size; - long st_atime; - unsigned long st_atime_nsec; - long st_mtime; - unsigned long st_mtime_nsec; - long st_ctime; - unsigned long st_ctime_nsec; - long st_blksize; - long st_blocks; - unsigned long __unused4[2]; -}; - -#define STAT_HAVE_NSEC 1 - -struct stat64 { - unsigned long long st_dev; - - unsigned long long st_ino; - - unsigned int st_mode; - unsigned int st_nlink; - - unsigned int st_uid; - unsigned int st_gid; - - unsigned long long st_rdev; - - unsigned char __pad3[8]; - - long long st_size; - unsigned int st_blksize; - - unsigned char __pad4[8]; - unsigned int st_blocks; - - unsigned int st_atime; - unsigned int st_atime_nsec; - - unsigned int st_mtime; - unsigned int st_mtime_nsec; - - unsigned int st_ctime; - unsigned int st_ctime_nsec; - - unsigned int __unused4; - unsigned int __unused5; -}; - +#ifndef ___ASM_SPARC_STAT_H +#define ___ASM_SPARC_STAT_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif diff --git a/include/asm-sparc/stat_32.h b/include/asm-sparc/stat_32.h new file mode 100644 index 000000000000..2299e1d5d94c --- /dev/null +++ b/include/asm-sparc/stat_32.h @@ -0,0 +1,76 @@ +#ifndef _SPARC_STAT_H +#define _SPARC_STAT_H + +#include + +struct __old_kernel_stat { + unsigned short st_dev; + unsigned short st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned short st_rdev; + unsigned long st_size; + unsigned long st_atime; + unsigned long st_mtime; + unsigned long st_ctime; +}; + +struct stat { + unsigned short st_dev; + unsigned long st_ino; + unsigned short st_mode; + short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned short st_rdev; + long st_size; + long st_atime; + unsigned long st_atime_nsec; + long st_mtime; + unsigned long st_mtime_nsec; + long st_ctime; + unsigned long st_ctime_nsec; + long st_blksize; + long st_blocks; + unsigned long __unused4[2]; +}; + +#define STAT_HAVE_NSEC 1 + +struct stat64 { + unsigned long long st_dev; + + unsigned long long st_ino; + + unsigned int st_mode; + unsigned int st_nlink; + + unsigned int st_uid; + unsigned int st_gid; + + unsigned long long st_rdev; + + unsigned char __pad3[8]; + + long long st_size; + unsigned int st_blksize; + + unsigned char __pad4[8]; + unsigned int st_blocks; + + unsigned int st_atime; + unsigned int st_atime_nsec; + + unsigned int st_mtime; + unsigned int st_mtime_nsec; + + unsigned int st_ctime; + unsigned int st_ctime_nsec; + + unsigned int __unused4; + unsigned int __unused5; +}; + +#endif diff --git a/include/asm-sparc/stat_64.h b/include/asm-sparc/stat_64.h new file mode 100644 index 000000000000..9650fdea847f --- /dev/null +++ b/include/asm-sparc/stat_64.h @@ -0,0 +1,47 @@ +#ifndef _SPARC64_STAT_H +#define _SPARC64_STAT_H + +#include + +struct stat { + unsigned st_dev; + ino_t st_ino; + mode_t st_mode; + short st_nlink; + uid_t st_uid; + gid_t st_gid; + unsigned st_rdev; + off_t st_size; + time_t st_atime; + time_t st_mtime; + time_t st_ctime; + off_t st_blksize; + off_t st_blocks; + unsigned long __unused4[2]; +}; + +struct stat64 { + unsigned long st_dev; + unsigned long st_ino; + unsigned long st_nlink; + + unsigned int st_mode; + unsigned int st_uid; + unsigned int st_gid; + unsigned int __pad0; + + unsigned long st_rdev; + long st_size; + long st_blksize; + long st_blocks; + + unsigned long st_atime; + unsigned long st_atime_nsec; + unsigned long st_mtime; + unsigned long st_mtime_nsec; + unsigned long st_ctime; + unsigned long st_ctime_nsec; + long __unused[3]; +}; + +#endif diff --git a/include/asm-sparc/statfs.h b/include/asm-sparc/statfs.h index 304520fa8863..a70cc52e7018 100644 --- a/include/asm-sparc/statfs.h +++ b/include/asm-sparc/statfs.h @@ -1,6 +1,8 @@ -#ifndef _SPARC_STATFS_H -#define _SPARC_STATFS_H - -#include - +#ifndef ___ASM_SPARC_STATFS_H +#define ___ASM_SPARC_STATFS_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif diff --git a/include/asm-sparc/statfs_32.h b/include/asm-sparc/statfs_32.h new file mode 100644 index 000000000000..304520fa8863 --- /dev/null +++ b/include/asm-sparc/statfs_32.h @@ -0,0 +1,6 @@ +#ifndef _SPARC_STATFS_H +#define _SPARC_STATFS_H + +#include + +#endif diff --git a/include/asm-sparc/statfs_64.h b/include/asm-sparc/statfs_64.h new file mode 100644 index 000000000000..79b3c890a5fa --- /dev/null +++ b/include/asm-sparc/statfs_64.h @@ -0,0 +1,54 @@ +#ifndef _SPARC64_STATFS_H +#define _SPARC64_STATFS_H + +#ifndef __KERNEL_STRICT_NAMES + +#include + +typedef __kernel_fsid_t fsid_t; + +#endif + +struct statfs { + long f_type; + long f_bsize; + long f_blocks; + long f_bfree; + long f_bavail; + long f_files; + long f_ffree; + __kernel_fsid_t f_fsid; + long f_namelen; + long f_frsize; + long f_spare[5]; +}; + +struct statfs64 { + long f_type; + long f_bsize; + long f_blocks; + long f_bfree; + long f_bavail; + long f_files; + long f_ffree; + __kernel_fsid_t f_fsid; + long f_namelen; + long f_frsize; + long f_spare[5]; +}; + +struct compat_statfs64 { + __u32 f_type; + __u32 f_bsize; + __u64 f_blocks; + __u64 f_bfree; + __u64 f_bavail; + __u64 f_files; + __u64 f_ffree; + __kernel_fsid_t f_fsid; + __u32 f_namelen; + __u32 f_frsize; + __u32 f_spare[5]; +}; + +#endif diff --git a/include/asm-sparc/string.h b/include/asm-sparc/string.h index 8d7c0dd4f299..14c04c7697a5 100644 --- a/include/asm-sparc/string.h +++ b/include/asm-sparc/string.h @@ -1,205 +1,8 @@ -/* - * string.h: External definitions for optimized assembly string - * routines for the Linux Kernel. - * - * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#ifndef __SPARC_STRING_H__ -#define __SPARC_STRING_H__ - -#include - -/* Really, userland/ksyms should not see any of this stuff. */ - -#ifdef __KERNEL__ - -extern void __memmove(void *,const void *,__kernel_size_t); -extern __kernel_size_t __memcpy(void *,const void *,__kernel_size_t); -extern __kernel_size_t __memset(void *,int,__kernel_size_t); - -#ifndef EXPORT_SYMTAB_STROPS - -/* First the mem*() things. */ -#define __HAVE_ARCH_MEMMOVE -#undef memmove -#define memmove(_to, _from, _n) \ -({ \ - void *_t = (_to); \ - __memmove(_t, (_from), (_n)); \ - _t; \ -}) - -#define __HAVE_ARCH_MEMCPY - -static inline void *__constant_memcpy(void *to, const void *from, __kernel_size_t n) -{ - extern void __copy_1page(void *, const void *); - - if(n <= 32) { - __builtin_memcpy(to, from, n); - } else if (((unsigned int) to & 7) != 0) { - /* Destination is not aligned on the double-word boundary */ - __memcpy(to, from, n); - } else { - switch(n) { - case PAGE_SIZE: - __copy_1page(to, from); - break; - default: - __memcpy(to, from, n); - break; - } - } - return to; -} - -static inline void *__nonconstant_memcpy(void *to, const void *from, __kernel_size_t n) -{ - __memcpy(to, from, n); - return to; -} - -#undef memcpy -#define memcpy(t, f, n) \ -(__builtin_constant_p(n) ? \ - __constant_memcpy((t),(f),(n)) : \ - __nonconstant_memcpy((t),(f),(n))) - -#define __HAVE_ARCH_MEMSET - -static inline void *__constant_c_and_count_memset(void *s, char c, __kernel_size_t count) -{ - extern void bzero_1page(void *); - extern __kernel_size_t __bzero(void *, __kernel_size_t); - - if(!c) { - if(count == PAGE_SIZE) - bzero_1page(s); - else - __bzero(s, count); - } else { - __memset(s, c, count); - } - return s; -} - -static inline void *__constant_c_memset(void *s, char c, __kernel_size_t count) -{ - extern __kernel_size_t __bzero(void *, __kernel_size_t); - - if(!c) - __bzero(s, count); - else - __memset(s, c, count); - return s; -} - -static inline void *__nonconstant_memset(void *s, char c, __kernel_size_t count) -{ - __memset(s, c, count); - return s; -} - -#undef memset -#define memset(s, c, count) \ -(__builtin_constant_p(c) ? (__builtin_constant_p(count) ? \ - __constant_c_and_count_memset((s), (c), (count)) : \ - __constant_c_memset((s), (c), (count))) \ - : __nonconstant_memset((s), (c), (count))) - -#define __HAVE_ARCH_MEMSCAN - -#undef memscan -#define memscan(__arg0, __char, __arg2) \ -({ \ - extern void *__memscan_zero(void *, size_t); \ - extern void *__memscan_generic(void *, int, size_t); \ - void *__retval, *__addr = (__arg0); \ - size_t __size = (__arg2); \ - \ - if(__builtin_constant_p(__char) && !(__char)) \ - __retval = __memscan_zero(__addr, __size); \ - else \ - __retval = __memscan_generic(__addr, (__char), __size); \ - \ - __retval; \ -}) - -#define __HAVE_ARCH_MEMCMP -extern int memcmp(const void *,const void *,__kernel_size_t); - -/* Now the str*() stuff... */ -#define __HAVE_ARCH_STRLEN -extern __kernel_size_t strlen(const char *); - -#define __HAVE_ARCH_STRNCMP - -extern int __strncmp(const char *, const char *, __kernel_size_t); - -static inline int __constant_strncmp(const char *src, const char *dest, __kernel_size_t count) -{ - register int retval; - switch(count) { - case 0: return 0; - case 1: return (src[0] - dest[0]); - case 2: retval = (src[0] - dest[0]); - if(!retval && src[0]) - retval = (src[1] - dest[1]); - return retval; - case 3: retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) - retval = (src[2] - dest[2]); - } - return retval; - case 4: retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) { - retval = (src[2] - dest[2]); - if (!retval && src[2]) - retval = (src[3] - dest[3]); - } - } - return retval; - case 5: retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) { - retval = (src[2] - dest[2]); - if (!retval && src[2]) { - retval = (src[3] - dest[3]); - if (!retval && src[3]) - retval = (src[4] - dest[4]); - } - } - } - return retval; - default: - retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) { - retval = (src[2] - dest[2]); - if(!retval && src[2]) - retval = __strncmp(src+3,dest+3,count-3); - } - } - return retval; - } -} - -#undef strncmp -#define strncmp(__arg0, __arg1, __arg2) \ -(__builtin_constant_p(__arg2) ? \ - __constant_strncmp(__arg0, __arg1, __arg2) : \ - __strncmp(__arg0, __arg1, __arg2)) - -#endif /* !EXPORT_SYMTAB_STROPS */ - -#endif /* __KERNEL__ */ - -#endif /* !(__SPARC_STRING_H__) */ +#ifndef ___ASM_SPARC_STRING_H +#define ___ASM_SPARC_STRING_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/string_32.h b/include/asm-sparc/string_32.h new file mode 100644 index 000000000000..6c5fddb7e6b5 --- /dev/null +++ b/include/asm-sparc/string_32.h @@ -0,0 +1,205 @@ +/* + * string.h: External definitions for optimized assembly string + * routines for the Linux Kernel. + * + * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#ifndef __SPARC_STRING_H__ +#define __SPARC_STRING_H__ + +#include + +/* Really, userland/ksyms should not see any of this stuff. */ + +#ifdef __KERNEL__ + +extern void __memmove(void *,const void *,__kernel_size_t); +extern __kernel_size_t __memcpy(void *,const void *,__kernel_size_t); +extern __kernel_size_t __memset(void *,int,__kernel_size_t); + +#ifndef EXPORT_SYMTAB_STROPS + +/* First the mem*() things. */ +#define __HAVE_ARCH_MEMMOVE +#undef memmove +#define memmove(_to, _from, _n) \ +({ \ + void *_t = (_to); \ + __memmove(_t, (_from), (_n)); \ + _t; \ +}) + +#define __HAVE_ARCH_MEMCPY + +static inline void *__constant_memcpy(void *to, const void *from, __kernel_size_t n) +{ + extern void __copy_1page(void *, const void *); + + if(n <= 32) { + __builtin_memcpy(to, from, n); + } else if (((unsigned int) to & 7) != 0) { + /* Destination is not aligned on the double-word boundary */ + __memcpy(to, from, n); + } else { + switch(n) { + case PAGE_SIZE: + __copy_1page(to, from); + break; + default: + __memcpy(to, from, n); + break; + } + } + return to; +} + +static inline void *__nonconstant_memcpy(void *to, const void *from, __kernel_size_t n) +{ + __memcpy(to, from, n); + return to; +} + +#undef memcpy +#define memcpy(t, f, n) \ +(__builtin_constant_p(n) ? \ + __constant_memcpy((t),(f),(n)) : \ + __nonconstant_memcpy((t),(f),(n))) + +#define __HAVE_ARCH_MEMSET + +static inline void *__constant_c_and_count_memset(void *s, char c, __kernel_size_t count) +{ + extern void bzero_1page(void *); + extern __kernel_size_t __bzero(void *, __kernel_size_t); + + if(!c) { + if(count == PAGE_SIZE) + bzero_1page(s); + else + __bzero(s, count); + } else { + __memset(s, c, count); + } + return s; +} + +static inline void *__constant_c_memset(void *s, char c, __kernel_size_t count) +{ + extern __kernel_size_t __bzero(void *, __kernel_size_t); + + if(!c) + __bzero(s, count); + else + __memset(s, c, count); + return s; +} + +static inline void *__nonconstant_memset(void *s, char c, __kernel_size_t count) +{ + __memset(s, c, count); + return s; +} + +#undef memset +#define memset(s, c, count) \ +(__builtin_constant_p(c) ? (__builtin_constant_p(count) ? \ + __constant_c_and_count_memset((s), (c), (count)) : \ + __constant_c_memset((s), (c), (count))) \ + : __nonconstant_memset((s), (c), (count))) + +#define __HAVE_ARCH_MEMSCAN + +#undef memscan +#define memscan(__arg0, __char, __arg2) \ +({ \ + extern void *__memscan_zero(void *, size_t); \ + extern void *__memscan_generic(void *, int, size_t); \ + void *__retval, *__addr = (__arg0); \ + size_t __size = (__arg2); \ + \ + if(__builtin_constant_p(__char) && !(__char)) \ + __retval = __memscan_zero(__addr, __size); \ + else \ + __retval = __memscan_generic(__addr, (__char), __size); \ + \ + __retval; \ +}) + +#define __HAVE_ARCH_MEMCMP +extern int memcmp(const void *,const void *,__kernel_size_t); + +/* Now the str*() stuff... */ +#define __HAVE_ARCH_STRLEN +extern __kernel_size_t strlen(const char *); + +#define __HAVE_ARCH_STRNCMP + +extern int __strncmp(const char *, const char *, __kernel_size_t); + +static inline int __constant_strncmp(const char *src, const char *dest, __kernel_size_t count) +{ + register int retval; + switch(count) { + case 0: return 0; + case 1: return (src[0] - dest[0]); + case 2: retval = (src[0] - dest[0]); + if(!retval && src[0]) + retval = (src[1] - dest[1]); + return retval; + case 3: retval = (src[0] - dest[0]); + if(!retval && src[0]) { + retval = (src[1] - dest[1]); + if(!retval && src[1]) + retval = (src[2] - dest[2]); + } + return retval; + case 4: retval = (src[0] - dest[0]); + if(!retval && src[0]) { + retval = (src[1] - dest[1]); + if(!retval && src[1]) { + retval = (src[2] - dest[2]); + if (!retval && src[2]) + retval = (src[3] - dest[3]); + } + } + return retval; + case 5: retval = (src[0] - dest[0]); + if(!retval && src[0]) { + retval = (src[1] - dest[1]); + if(!retval && src[1]) { + retval = (src[2] - dest[2]); + if (!retval && src[2]) { + retval = (src[3] - dest[3]); + if (!retval && src[3]) + retval = (src[4] - dest[4]); + } + } + } + return retval; + default: + retval = (src[0] - dest[0]); + if(!retval && src[0]) { + retval = (src[1] - dest[1]); + if(!retval && src[1]) { + retval = (src[2] - dest[2]); + if(!retval && src[2]) + retval = __strncmp(src+3,dest+3,count-3); + } + } + return retval; + } +} + +#undef strncmp +#define strncmp(__arg0, __arg1, __arg2) \ +(__builtin_constant_p(__arg2) ? \ + __constant_strncmp(__arg0, __arg1, __arg2) : \ + __strncmp(__arg0, __arg1, __arg2)) + +#endif /* !EXPORT_SYMTAB_STROPS */ + +#endif /* __KERNEL__ */ + +#endif /* !(__SPARC_STRING_H__) */ diff --git a/include/asm-sparc/string_64.h b/include/asm-sparc/string_64.h new file mode 100644 index 000000000000..43161f2d17eb --- /dev/null +++ b/include/asm-sparc/string_64.h @@ -0,0 +1,83 @@ +/* + * string.h: External definitions for optimized assembly string + * routines for the Linux Kernel. + * + * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996,1997,1999 Jakub Jelinek (jakub@redhat.com) + */ + +#ifndef __SPARC64_STRING_H__ +#define __SPARC64_STRING_H__ + +/* Really, userland/ksyms should not see any of this stuff. */ + +#ifdef __KERNEL__ + +#include + +extern void *__memset(void *,int,__kernel_size_t); + +#ifndef EXPORT_SYMTAB_STROPS + +/* First the mem*() things. */ +#define __HAVE_ARCH_MEMMOVE +extern void *memmove(void *, const void *, __kernel_size_t); + +#define __HAVE_ARCH_MEMCPY +extern void *memcpy(void *, const void *, __kernel_size_t); + +#define __HAVE_ARCH_MEMSET +extern void *__builtin_memset(void *,int,__kernel_size_t); + +static inline void *__constant_memset(void *s, int c, __kernel_size_t count) +{ + extern __kernel_size_t __bzero(void *, __kernel_size_t); + + if (!c) { + __bzero(s, count); + return s; + } else + return __memset(s, c, count); +} + +#undef memset +#define memset(s, c, count) \ +((__builtin_constant_p(count) && (count) <= 32) ? \ + __builtin_memset((s), (c), (count)) : \ + (__builtin_constant_p(c) ? \ + __constant_memset((s), (c), (count)) : \ + __memset((s), (c), (count)))) + +#define __HAVE_ARCH_MEMSCAN + +#undef memscan +#define memscan(__arg0, __char, __arg2) \ +({ \ + extern void *__memscan_zero(void *, size_t); \ + extern void *__memscan_generic(void *, int, size_t); \ + void *__retval, *__addr = (__arg0); \ + size_t __size = (__arg2); \ + \ + if(__builtin_constant_p(__char) && !(__char)) \ + __retval = __memscan_zero(__addr, __size); \ + else \ + __retval = __memscan_generic(__addr, (__char), __size); \ + \ + __retval; \ +}) + +#define __HAVE_ARCH_MEMCMP +extern int memcmp(const void *,const void *,__kernel_size_t); + +/* Now the str*() stuff... */ +#define __HAVE_ARCH_STRLEN +extern __kernel_size_t strlen(const char *); + +#define __HAVE_ARCH_STRNCMP +extern int strncmp(const char *, const char *, __kernel_size_t); + +#endif /* !EXPORT_SYMTAB_STROPS */ + +#endif /* __KERNEL__ */ + +#endif /* !(__SPARC64_STRING_H__) */ diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h index b4b024445fc9..15e2a3bc4f61 100644 --- a/include/asm-sparc/system.h +++ b/include/asm-sparc/system.h @@ -1,288 +1,8 @@ -#ifndef __SPARC_SYSTEM_H -#define __SPARC_SYSTEM_H - -#include -#include /* NR_CPUS */ -#include - -#include -#include -#include -#include -#include - -#ifndef __ASSEMBLY__ - -#include - -/* - * Sparc (general) CPU types - */ -enum sparc_cpu { - sun4 = 0x00, - sun4c = 0x01, - sun4m = 0x02, - sun4d = 0x03, - sun4e = 0x04, - sun4u = 0x05, /* V8 ploos ploos */ - sun_unknown = 0x06, - ap1000 = 0x07, /* almost a sun4m */ -}; - -/* Really, userland should not be looking at any of this... */ -#ifdef __KERNEL__ - -extern enum sparc_cpu sparc_cpu_model; - -#ifndef CONFIG_SUN4 -#define ARCH_SUN4C_SUN4 (sparc_cpu_model==sun4c) -#define ARCH_SUN4 0 +#ifndef ___ASM_SPARC_SYSTEM_H +#define ___ASM_SPARC_SYSTEM_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define ARCH_SUN4C_SUN4 1 -#define ARCH_SUN4 1 +#include #endif - -#define SUN4M_NCPUS 4 /* Architectural limit of sun4m. */ - -extern char reboot_command[]; - -extern struct thread_info *current_set[NR_CPUS]; - -extern unsigned long empty_bad_page; -extern unsigned long empty_bad_page_table; -extern unsigned long empty_zero_page; - -extern void sun_do_break(void); -extern int serial_console; -extern int stop_a_enabled; - -static inline int con_is_present(void) -{ - return serial_console ? 0 : 1; -} - -/* When a context switch happens we must flush all user windows so that - * the windows of the current process are flushed onto its stack. This - * way the windows are all clean for the next process and the stack - * frames are up to date. - */ -extern void flush_user_windows(void); -extern void kill_user_windows(void); -extern void synchronize_user_stack(void); -extern void fpsave(unsigned long *fpregs, unsigned long *fsr, - void *fpqueue, unsigned long *fpqdepth); - -#ifdef CONFIG_SMP -#define SWITCH_ENTER(prv) \ - do { \ - if (test_tsk_thread_flag(prv, TIF_USEDFPU)) { \ - put_psr(get_psr() | PSR_EF); \ - fpsave(&(prv)->thread.float_regs[0], &(prv)->thread.fsr, \ - &(prv)->thread.fpqueue[0], &(prv)->thread.fpqdepth); \ - clear_tsk_thread_flag(prv, TIF_USEDFPU); \ - (prv)->thread.kregs->psr &= ~PSR_EF; \ - } \ - } while(0) - -#define SWITCH_DO_LAZY_FPU(next) /* */ -#else -#define SWITCH_ENTER(prv) /* */ -#define SWITCH_DO_LAZY_FPU(nxt) \ - do { \ - if (last_task_used_math != (nxt)) \ - (nxt)->thread.kregs->psr&=~PSR_EF; \ - } while(0) -#endif - -extern void flushw_all(void); - -/* - * Flush windows so that the VM switch which follows - * would not pull the stack from under us. - * - * SWITCH_ENTER and SWITH_DO_LAZY_FPU do not work yet (e.g. SMP does not work) - * XXX WTF is the above comment? Found in late teen 2.4.x. - */ -#define prepare_arch_switch(next) do { \ - __asm__ __volatile__( \ - ".globl\tflush_patch_switch\nflush_patch_switch:\n\t" \ - "save %sp, -0x40, %sp; save %sp, -0x40, %sp; save %sp, -0x40, %sp\n\t" \ - "save %sp, -0x40, %sp; save %sp, -0x40, %sp; save %sp, -0x40, %sp\n\t" \ - "save %sp, -0x40, %sp\n\t" \ - "restore; restore; restore; restore; restore; restore; restore"); \ -} while(0) - - /* Much care has gone into this code, do not touch it. - * - * We need to loadup regs l0/l1 for the newly forked child - * case because the trap return path relies on those registers - * holding certain values, gcc is told that they are clobbered. - * Gcc needs registers for 3 values in and 1 value out, so we - * clobber every non-fixed-usage register besides l2/l3/o4/o5. -DaveM - * - * Hey Dave, that do not touch sign is too much of an incentive - * - Anton & Pete - */ -#define switch_to(prev, next, last) do { \ - SWITCH_ENTER(prev); \ - SWITCH_DO_LAZY_FPU(next); \ - cpu_set(smp_processor_id(), next->active_mm->cpu_vm_mask); \ - __asm__ __volatile__( \ - "sethi %%hi(here - 0x8), %%o7\n\t" \ - "mov %%g6, %%g3\n\t" \ - "or %%o7, %%lo(here - 0x8), %%o7\n\t" \ - "rd %%psr, %%g4\n\t" \ - "std %%sp, [%%g6 + %4]\n\t" \ - "rd %%wim, %%g5\n\t" \ - "wr %%g4, 0x20, %%psr\n\t" \ - "nop\n\t" \ - "std %%g4, [%%g6 + %3]\n\t" \ - "ldd [%2 + %3], %%g4\n\t" \ - "mov %2, %%g6\n\t" \ - ".globl patchme_store_new_current\n" \ -"patchme_store_new_current:\n\t" \ - "st %2, [%1]\n\t" \ - "wr %%g4, 0x20, %%psr\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - "nop\n\t" /* LEON needs all 3 nops: load to %sp depends on CWP. */ \ - "ldd [%%g6 + %4], %%sp\n\t" \ - "wr %%g5, 0x0, %%wim\n\t" \ - "ldd [%%sp + 0x00], %%l0\n\t" \ - "ldd [%%sp + 0x38], %%i6\n\t" \ - "wr %%g4, 0x0, %%psr\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - "jmpl %%o7 + 0x8, %%g0\n\t" \ - " ld [%%g3 + %5], %0\n\t" \ - "here:\n" \ - : "=&r" (last) \ - : "r" (&(current_set[hard_smp_processor_id()])), \ - "r" (task_thread_info(next)), \ - "i" (TI_KPSR), \ - "i" (TI_KSP), \ - "i" (TI_TASK) \ - : "g1", "g2", "g3", "g4", "g5", "g7", \ - "l0", "l1", "l3", "l4", "l5", "l6", "l7", \ - "i0", "i1", "i2", "i3", "i4", "i5", \ - "o0", "o1", "o2", "o3", "o7"); \ - } while(0) - -/* XXX Change this if we ever use a PSO mode kernel. */ -#define mb() __asm__ __volatile__ ("" : : : "memory") -#define rmb() mb() -#define wmb() mb() -#define read_barrier_depends() do { } while(0) -#define set_mb(__var, __value) do { __var = __value; mb(); } while(0) -#define smp_mb() __asm__ __volatile__("":::"memory") -#define smp_rmb() __asm__ __volatile__("":::"memory") -#define smp_wmb() __asm__ __volatile__("":::"memory") -#define smp_read_barrier_depends() do { } while(0) - -#define nop() __asm__ __volatile__ ("nop") - -/* This has special calling conventions */ -#ifndef CONFIG_SMP -BTFIXUPDEF_CALL(void, ___xchg32, void) -#endif - -static inline unsigned long xchg_u32(__volatile__ unsigned long *m, unsigned long val) -{ -#ifdef CONFIG_SMP - __asm__ __volatile__("swap [%2], %0" - : "=&r" (val) - : "0" (val), "r" (m) - : "memory"); - return val; -#else - register unsigned long *ptr asm("g1"); - register unsigned long ret asm("g2"); - - ptr = (unsigned long *) m; - ret = val; - - /* Note: this is magic and the nop there is - really needed. */ - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___f____xchg32\n\t" - " nop\n\t" - : "=&r" (ret) - : "0" (ret), "r" (ptr) - : "g3", "g4", "g7", "memory", "cc"); - - return ret; #endif -} - -#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) - -extern void __xchg_called_with_bad_pointer(void); - -static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, int size) -{ - switch (size) { - case 4: - return xchg_u32(ptr, x); - }; - __xchg_called_with_bad_pointer(); - return x; -} - -/* Emulate cmpxchg() the same way we emulate atomics, - * by hashing the object address and indexing into an array - * of spinlocks to get a bit of performance... - * - * See arch/sparc/lib/atomic32.c for implementation. - * - * Cribbed from - */ -#define __HAVE_ARCH_CMPXCHG 1 - -/* bug catcher for when unsupported size is used - won't link */ -extern void __cmpxchg_called_with_bad_pointer(void); -/* we only need to support cmpxchg of a u32 on sparc */ -extern unsigned long __cmpxchg_u32(volatile u32 *m, u32 old, u32 new_); - -/* don't worry...optimizer will get rid of most of this */ -static inline unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size) -{ - switch (size) { - case 4: - return __cmpxchg_u32((u32 *)ptr, (u32)old, (u32)new_); - default: - __cmpxchg_called_with_bad_pointer(); - break; - } - return old; -} - -#define cmpxchg(ptr, o, n) \ -({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, sizeof(*(ptr))); \ -}) - -#include - -/* - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make - * them available. - */ -#define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\ - (unsigned long)(n), sizeof(*(ptr)))) -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) - -extern void die_if_kernel(char *str, struct pt_regs *regs) __attribute__ ((noreturn)); - -#endif /* __KERNEL__ */ - -#endif /* __ASSEMBLY__ */ - -#define arch_align_stack(x) (x) - -#endif /* !(__SPARC_SYSTEM_H) */ diff --git a/include/asm-sparc/system_32.h b/include/asm-sparc/system_32.h new file mode 100644 index 000000000000..b4b024445fc9 --- /dev/null +++ b/include/asm-sparc/system_32.h @@ -0,0 +1,288 @@ +#ifndef __SPARC_SYSTEM_H +#define __SPARC_SYSTEM_H + +#include +#include /* NR_CPUS */ +#include + +#include +#include +#include +#include +#include + +#ifndef __ASSEMBLY__ + +#include + +/* + * Sparc (general) CPU types + */ +enum sparc_cpu { + sun4 = 0x00, + sun4c = 0x01, + sun4m = 0x02, + sun4d = 0x03, + sun4e = 0x04, + sun4u = 0x05, /* V8 ploos ploos */ + sun_unknown = 0x06, + ap1000 = 0x07, /* almost a sun4m */ +}; + +/* Really, userland should not be looking at any of this... */ +#ifdef __KERNEL__ + +extern enum sparc_cpu sparc_cpu_model; + +#ifndef CONFIG_SUN4 +#define ARCH_SUN4C_SUN4 (sparc_cpu_model==sun4c) +#define ARCH_SUN4 0 +#else +#define ARCH_SUN4C_SUN4 1 +#define ARCH_SUN4 1 +#endif + +#define SUN4M_NCPUS 4 /* Architectural limit of sun4m. */ + +extern char reboot_command[]; + +extern struct thread_info *current_set[NR_CPUS]; + +extern unsigned long empty_bad_page; +extern unsigned long empty_bad_page_table; +extern unsigned long empty_zero_page; + +extern void sun_do_break(void); +extern int serial_console; +extern int stop_a_enabled; + +static inline int con_is_present(void) +{ + return serial_console ? 0 : 1; +} + +/* When a context switch happens we must flush all user windows so that + * the windows of the current process are flushed onto its stack. This + * way the windows are all clean for the next process and the stack + * frames are up to date. + */ +extern void flush_user_windows(void); +extern void kill_user_windows(void); +extern void synchronize_user_stack(void); +extern void fpsave(unsigned long *fpregs, unsigned long *fsr, + void *fpqueue, unsigned long *fpqdepth); + +#ifdef CONFIG_SMP +#define SWITCH_ENTER(prv) \ + do { \ + if (test_tsk_thread_flag(prv, TIF_USEDFPU)) { \ + put_psr(get_psr() | PSR_EF); \ + fpsave(&(prv)->thread.float_regs[0], &(prv)->thread.fsr, \ + &(prv)->thread.fpqueue[0], &(prv)->thread.fpqdepth); \ + clear_tsk_thread_flag(prv, TIF_USEDFPU); \ + (prv)->thread.kregs->psr &= ~PSR_EF; \ + } \ + } while(0) + +#define SWITCH_DO_LAZY_FPU(next) /* */ +#else +#define SWITCH_ENTER(prv) /* */ +#define SWITCH_DO_LAZY_FPU(nxt) \ + do { \ + if (last_task_used_math != (nxt)) \ + (nxt)->thread.kregs->psr&=~PSR_EF; \ + } while(0) +#endif + +extern void flushw_all(void); + +/* + * Flush windows so that the VM switch which follows + * would not pull the stack from under us. + * + * SWITCH_ENTER and SWITH_DO_LAZY_FPU do not work yet (e.g. SMP does not work) + * XXX WTF is the above comment? Found in late teen 2.4.x. + */ +#define prepare_arch_switch(next) do { \ + __asm__ __volatile__( \ + ".globl\tflush_patch_switch\nflush_patch_switch:\n\t" \ + "save %sp, -0x40, %sp; save %sp, -0x40, %sp; save %sp, -0x40, %sp\n\t" \ + "save %sp, -0x40, %sp; save %sp, -0x40, %sp; save %sp, -0x40, %sp\n\t" \ + "save %sp, -0x40, %sp\n\t" \ + "restore; restore; restore; restore; restore; restore; restore"); \ +} while(0) + + /* Much care has gone into this code, do not touch it. + * + * We need to loadup regs l0/l1 for the newly forked child + * case because the trap return path relies on those registers + * holding certain values, gcc is told that they are clobbered. + * Gcc needs registers for 3 values in and 1 value out, so we + * clobber every non-fixed-usage register besides l2/l3/o4/o5. -DaveM + * + * Hey Dave, that do not touch sign is too much of an incentive + * - Anton & Pete + */ +#define switch_to(prev, next, last) do { \ + SWITCH_ENTER(prev); \ + SWITCH_DO_LAZY_FPU(next); \ + cpu_set(smp_processor_id(), next->active_mm->cpu_vm_mask); \ + __asm__ __volatile__( \ + "sethi %%hi(here - 0x8), %%o7\n\t" \ + "mov %%g6, %%g3\n\t" \ + "or %%o7, %%lo(here - 0x8), %%o7\n\t" \ + "rd %%psr, %%g4\n\t" \ + "std %%sp, [%%g6 + %4]\n\t" \ + "rd %%wim, %%g5\n\t" \ + "wr %%g4, 0x20, %%psr\n\t" \ + "nop\n\t" \ + "std %%g4, [%%g6 + %3]\n\t" \ + "ldd [%2 + %3], %%g4\n\t" \ + "mov %2, %%g6\n\t" \ + ".globl patchme_store_new_current\n" \ +"patchme_store_new_current:\n\t" \ + "st %2, [%1]\n\t" \ + "wr %%g4, 0x20, %%psr\n\t" \ + "nop\n\t" \ + "nop\n\t" \ + "nop\n\t" /* LEON needs all 3 nops: load to %sp depends on CWP. */ \ + "ldd [%%g6 + %4], %%sp\n\t" \ + "wr %%g5, 0x0, %%wim\n\t" \ + "ldd [%%sp + 0x00], %%l0\n\t" \ + "ldd [%%sp + 0x38], %%i6\n\t" \ + "wr %%g4, 0x0, %%psr\n\t" \ + "nop\n\t" \ + "nop\n\t" \ + "jmpl %%o7 + 0x8, %%g0\n\t" \ + " ld [%%g3 + %5], %0\n\t" \ + "here:\n" \ + : "=&r" (last) \ + : "r" (&(current_set[hard_smp_processor_id()])), \ + "r" (task_thread_info(next)), \ + "i" (TI_KPSR), \ + "i" (TI_KSP), \ + "i" (TI_TASK) \ + : "g1", "g2", "g3", "g4", "g5", "g7", \ + "l0", "l1", "l3", "l4", "l5", "l6", "l7", \ + "i0", "i1", "i2", "i3", "i4", "i5", \ + "o0", "o1", "o2", "o3", "o7"); \ + } while(0) + +/* XXX Change this if we ever use a PSO mode kernel. */ +#define mb() __asm__ __volatile__ ("" : : : "memory") +#define rmb() mb() +#define wmb() mb() +#define read_barrier_depends() do { } while(0) +#define set_mb(__var, __value) do { __var = __value; mb(); } while(0) +#define smp_mb() __asm__ __volatile__("":::"memory") +#define smp_rmb() __asm__ __volatile__("":::"memory") +#define smp_wmb() __asm__ __volatile__("":::"memory") +#define smp_read_barrier_depends() do { } while(0) + +#define nop() __asm__ __volatile__ ("nop") + +/* This has special calling conventions */ +#ifndef CONFIG_SMP +BTFIXUPDEF_CALL(void, ___xchg32, void) +#endif + +static inline unsigned long xchg_u32(__volatile__ unsigned long *m, unsigned long val) +{ +#ifdef CONFIG_SMP + __asm__ __volatile__("swap [%2], %0" + : "=&r" (val) + : "0" (val), "r" (m) + : "memory"); + return val; +#else + register unsigned long *ptr asm("g1"); + register unsigned long ret asm("g2"); + + ptr = (unsigned long *) m; + ret = val; + + /* Note: this is magic and the nop there is + really needed. */ + __asm__ __volatile__( + "mov %%o7, %%g4\n\t" + "call ___f____xchg32\n\t" + " nop\n\t" + : "=&r" (ret) + : "0" (ret), "r" (ptr) + : "g3", "g4", "g7", "memory", "cc"); + + return ret; +#endif +} + +#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) + +extern void __xchg_called_with_bad_pointer(void); + +static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, int size) +{ + switch (size) { + case 4: + return xchg_u32(ptr, x); + }; + __xchg_called_with_bad_pointer(); + return x; +} + +/* Emulate cmpxchg() the same way we emulate atomics, + * by hashing the object address and indexing into an array + * of spinlocks to get a bit of performance... + * + * See arch/sparc/lib/atomic32.c for implementation. + * + * Cribbed from + */ +#define __HAVE_ARCH_CMPXCHG 1 + +/* bug catcher for when unsupported size is used - won't link */ +extern void __cmpxchg_called_with_bad_pointer(void); +/* we only need to support cmpxchg of a u32 on sparc */ +extern unsigned long __cmpxchg_u32(volatile u32 *m, u32 old, u32 new_); + +/* don't worry...optimizer will get rid of most of this */ +static inline unsigned long +__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size) +{ + switch (size) { + case 4: + return __cmpxchg_u32((u32 *)ptr, (u32)old, (u32)new_); + default: + __cmpxchg_called_with_bad_pointer(); + break; + } + return old; +} + +#define cmpxchg(ptr, o, n) \ +({ \ + __typeof__(*(ptr)) _o_ = (o); \ + __typeof__(*(ptr)) _n_ = (n); \ + (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ + (unsigned long)_n_, sizeof(*(ptr))); \ +}) + +#include + +/* + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make + * them available. + */ +#define cmpxchg_local(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\ + (unsigned long)(n), sizeof(*(ptr)))) +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) + +extern void die_if_kernel(char *str, struct pt_regs *regs) __attribute__ ((noreturn)); + +#endif /* __KERNEL__ */ + +#endif /* __ASSEMBLY__ */ + +#define arch_align_stack(x) (x) + +#endif /* !(__SPARC_SYSTEM_H) */ diff --git a/include/asm-sparc/system_64.h b/include/asm-sparc/system_64.h new file mode 100644 index 000000000000..db9e742a406a --- /dev/null +++ b/include/asm-sparc/system_64.h @@ -0,0 +1,355 @@ +#ifndef __SPARC64_SYSTEM_H +#define __SPARC64_SYSTEM_H + +#include +#include +#include + +#ifndef __ASSEMBLY__ + +#include +#include + +/* + * Sparc (general) CPU types + */ +enum sparc_cpu { + sun4 = 0x00, + sun4c = 0x01, + sun4m = 0x02, + sun4d = 0x03, + sun4e = 0x04, + sun4u = 0x05, /* V8 ploos ploos */ + sun_unknown = 0x06, + ap1000 = 0x07, /* almost a sun4m */ +}; + +#define sparc_cpu_model sun4u + +/* This cannot ever be a sun4c nor sun4 :) That's just history. */ +#define ARCH_SUN4C_SUN4 0 +#define ARCH_SUN4 0 + +extern char reboot_command[]; + +/* These are here in an effort to more fully work around Spitfire Errata + * #51. Essentially, if a memory barrier occurs soon after a mispredicted + * branch, the chip can stop executing instructions until a trap occurs. + * Therefore, if interrupts are disabled, the chip can hang forever. + * + * It used to be believed that the memory barrier had to be right in the + * delay slot, but a case has been traced recently wherein the memory barrier + * was one instruction after the branch delay slot and the chip still hung. + * The offending sequence was the following in sym_wakeup_done() of the + * sym53c8xx_2 driver: + * + * call sym_ccb_from_dsa, 0 + * movge %icc, 0, %l0 + * brz,pn %o0, .LL1303 + * mov %o0, %l2 + * membar #LoadLoad + * + * The branch has to be mispredicted for the bug to occur. Therefore, we put + * the memory barrier explicitly into a "branch always, predicted taken" + * delay slot to avoid the problem case. + */ +#define membar_safe(type) \ +do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \ + " membar " type "\n" \ + "1:\n" \ + : : : "memory"); \ +} while (0) + +#define mb() \ + membar_safe("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad") +#define rmb() \ + membar_safe("#LoadLoad") +#define wmb() \ + membar_safe("#StoreStore") +#define membar_storeload() \ + membar_safe("#StoreLoad") +#define membar_storeload_storestore() \ + membar_safe("#StoreLoad | #StoreStore") +#define membar_storeload_loadload() \ + membar_safe("#StoreLoad | #LoadLoad") +#define membar_storestore_loadstore() \ + membar_safe("#StoreStore | #LoadStore") + +#endif + +#define nop() __asm__ __volatile__ ("nop") + +#define read_barrier_depends() do { } while(0) +#define set_mb(__var, __value) \ + do { __var = __value; membar_storeload_storestore(); } while(0) + +#ifdef CONFIG_SMP +#define smp_mb() mb() +#define smp_rmb() rmb() +#define smp_wmb() wmb() +#define smp_read_barrier_depends() read_barrier_depends() +#else +#define smp_mb() __asm__ __volatile__("":::"memory") +#define smp_rmb() __asm__ __volatile__("":::"memory") +#define smp_wmb() __asm__ __volatile__("":::"memory") +#define smp_read_barrier_depends() do { } while(0) +#endif + +#define flushi(addr) __asm__ __volatile__ ("flush %0" : : "r" (addr) : "memory") + +#define flushw_all() __asm__ __volatile__("flushw") + +/* Performance counter register access. */ +#define read_pcr(__p) __asm__ __volatile__("rd %%pcr, %0" : "=r" (__p)) +#define write_pcr(__p) __asm__ __volatile__("wr %0, 0x0, %%pcr" : : "r" (__p)) +#define read_pic(__p) __asm__ __volatile__("rd %%pic, %0" : "=r" (__p)) + +/* Blackbird errata workaround. See commentary in + * arch/sparc64/kernel/smp.c:smp_percpu_timer_interrupt() + * for more information. + */ +#define reset_pic() \ + __asm__ __volatile__("ba,pt %xcc, 99f\n\t" \ + ".align 64\n" \ + "99:wr %g0, 0x0, %pic\n\t" \ + "rd %pic, %g0") + +#ifndef __ASSEMBLY__ + +extern void sun_do_break(void); +extern int stop_a_enabled; + +extern void fault_in_user_windows(void); +extern void synchronize_user_stack(void); + +extern void __flushw_user(void); +#define flushw_user() __flushw_user() + +#define flush_user_windows flushw_user +#define flush_register_windows flushw_all + +/* Don't hold the runqueue lock over context switch */ +#define __ARCH_WANT_UNLOCKED_CTXSW +#define prepare_arch_switch(next) \ +do { \ + flushw_all(); \ +} while (0) + + /* See what happens when you design the chip correctly? + * + * We tell gcc we clobber all non-fixed-usage registers except + * for l0/l1. It will use one for 'next' and the other to hold + * the output value of 'last'. 'next' is not referenced again + * past the invocation of switch_to in the scheduler, so we need + * not preserve it's value. Hairy, but it lets us remove 2 loads + * and 2 stores in this critical code path. -DaveM + */ +#define switch_to(prev, next, last) \ +do { if (test_thread_flag(TIF_PERFCTR)) { \ + unsigned long __tmp; \ + read_pcr(__tmp); \ + current_thread_info()->pcr_reg = __tmp; \ + read_pic(__tmp); \ + current_thread_info()->kernel_cntd0 += (unsigned int)(__tmp);\ + current_thread_info()->kernel_cntd1 += ((__tmp) >> 32); \ + } \ + flush_tlb_pending(); \ + save_and_clear_fpu(); \ + /* If you are tempted to conditionalize the following */ \ + /* so that ASI is only written if it changes, think again. */ \ + __asm__ __volatile__("wr %%g0, %0, %%asi" \ + : : "r" (__thread_flag_byte_ptr(task_thread_info(next))[TI_FLAG_BYTE_CURRENT_DS]));\ + trap_block[current_thread_info()->cpu].thread = \ + task_thread_info(next); \ + __asm__ __volatile__( \ + "mov %%g4, %%g7\n\t" \ + "stx %%i6, [%%sp + 2047 + 0x70]\n\t" \ + "stx %%i7, [%%sp + 2047 + 0x78]\n\t" \ + "rdpr %%wstate, %%o5\n\t" \ + "stx %%o6, [%%g6 + %6]\n\t" \ + "stb %%o5, [%%g6 + %5]\n\t" \ + "rdpr %%cwp, %%o5\n\t" \ + "stb %%o5, [%%g6 + %8]\n\t" \ + "mov %4, %%g6\n\t" \ + "ldub [%4 + %8], %%g1\n\t" \ + "wrpr %%g1, %%cwp\n\t" \ + "ldx [%%g6 + %6], %%o6\n\t" \ + "ldub [%%g6 + %5], %%o5\n\t" \ + "ldub [%%g6 + %7], %%o7\n\t" \ + "wrpr %%o5, 0x0, %%wstate\n\t" \ + "ldx [%%sp + 2047 + 0x70], %%i6\n\t" \ + "ldx [%%sp + 2047 + 0x78], %%i7\n\t" \ + "ldx [%%g6 + %9], %%g4\n\t" \ + "brz,pt %%o7, switch_to_pc\n\t" \ + " mov %%g7, %0\n\t" \ + "sethi %%hi(ret_from_syscall), %%g1\n\t" \ + "jmpl %%g1 + %%lo(ret_from_syscall), %%g0\n\t" \ + " nop\n\t" \ + ".globl switch_to_pc\n\t" \ + "switch_to_pc:\n\t" \ + : "=&r" (last), "=r" (current), "=r" (current_thread_info_reg), \ + "=r" (__local_per_cpu_offset) \ + : "0" (task_thread_info(next)), \ + "i" (TI_WSTATE), "i" (TI_KSP), "i" (TI_NEW_CHILD), \ + "i" (TI_CWP), "i" (TI_TASK) \ + : "cc", \ + "g1", "g2", "g3", "g7", \ + "l1", "l2", "l3", "l4", "l5", "l6", "l7", \ + "i0", "i1", "i2", "i3", "i4", "i5", \ + "o0", "o1", "o2", "o3", "o4", "o5", "o7"); \ + /* If you fuck with this, update ret_from_syscall code too. */ \ + if (test_thread_flag(TIF_PERFCTR)) { \ + write_pcr(current_thread_info()->pcr_reg); \ + reset_pic(); \ + } \ +} while(0) + +static inline unsigned long xchg32(__volatile__ unsigned int *m, unsigned int val) +{ + unsigned long tmp1, tmp2; + + __asm__ __volatile__( +" membar #StoreLoad | #LoadLoad\n" +" mov %0, %1\n" +"1: lduw [%4], %2\n" +" cas [%4], %2, %0\n" +" cmp %2, %0\n" +" bne,a,pn %%icc, 1b\n" +" mov %1, %0\n" +" membar #StoreLoad | #StoreStore\n" + : "=&r" (val), "=&r" (tmp1), "=&r" (tmp2) + : "0" (val), "r" (m) + : "cc", "memory"); + return val; +} + +static inline unsigned long xchg64(__volatile__ unsigned long *m, unsigned long val) +{ + unsigned long tmp1, tmp2; + + __asm__ __volatile__( +" membar #StoreLoad | #LoadLoad\n" +" mov %0, %1\n" +"1: ldx [%4], %2\n" +" casx [%4], %2, %0\n" +" cmp %2, %0\n" +" bne,a,pn %%xcc, 1b\n" +" mov %1, %0\n" +" membar #StoreLoad | #StoreStore\n" + : "=&r" (val), "=&r" (tmp1), "=&r" (tmp2) + : "0" (val), "r" (m) + : "cc", "memory"); + return val; +} + +#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) + +extern void __xchg_called_with_bad_pointer(void); + +static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, + int size) +{ + switch (size) { + case 4: + return xchg32(ptr, x); + case 8: + return xchg64(ptr, x); + }; + __xchg_called_with_bad_pointer(); + return x; +} + +extern void die_if_kernel(char *str, struct pt_regs *regs) __attribute__ ((noreturn)); + +/* + * Atomic compare and exchange. Compare OLD with MEM, if identical, + * store NEW in MEM. Return the initial value in MEM. Success is + * indicated by comparing RETURN with OLD. + */ + +#define __HAVE_ARCH_CMPXCHG 1 + +static inline unsigned long +__cmpxchg_u32(volatile int *m, int old, int new) +{ + __asm__ __volatile__("membar #StoreLoad | #LoadLoad\n" + "cas [%2], %3, %0\n\t" + "membar #StoreLoad | #StoreStore" + : "=&r" (new) + : "0" (new), "r" (m), "r" (old) + : "memory"); + + return new; +} + +static inline unsigned long +__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new) +{ + __asm__ __volatile__("membar #StoreLoad | #LoadLoad\n" + "casx [%2], %3, %0\n\t" + "membar #StoreLoad | #StoreStore" + : "=&r" (new) + : "0" (new), "r" (m), "r" (old) + : "memory"); + + return new; +} + +/* This function doesn't exist, so you'll get a linker error + if something tries to do an invalid cmpxchg(). */ +extern void __cmpxchg_called_with_bad_pointer(void); + +static inline unsigned long +__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) +{ + switch (size) { + case 4: + return __cmpxchg_u32(ptr, old, new); + case 8: + return __cmpxchg_u64(ptr, old, new); + } + __cmpxchg_called_with_bad_pointer(); + return old; +} + +#define cmpxchg(ptr,o,n) \ + ({ \ + __typeof__(*(ptr)) _o_ = (o); \ + __typeof__(*(ptr)) _n_ = (n); \ + (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ + (unsigned long)_n_, sizeof(*(ptr))); \ + }) + +/* + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make + * them available. + */ + +static inline unsigned long __cmpxchg_local(volatile void *ptr, + unsigned long old, + unsigned long new, int size) +{ + switch (size) { + case 4: + case 8: return __cmpxchg(ptr, old, new, size); + default: + return __cmpxchg_local_generic(ptr, old, new, size); + } + + return old; +} + +#define cmpxchg_local(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr)))) +#define cmpxchg64_local(ptr, o, n) \ + ({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ + }) + +#endif /* !(__ASSEMBLY__) */ + +#define arch_align_stack(x) (x) + +#endif /* !(__SPARC64_SYSTEM_H) */ diff --git a/include/asm-sparc/thread_info.h b/include/asm-sparc/thread_info.h index 91b9f5888c85..64155cf89f37 100644 --- a/include/asm-sparc/thread_info.h +++ b/include/asm-sparc/thread_info.h @@ -1,151 +1,8 @@ -/* - * thread_info.h: sparc low-level thread information - * adapted from the ppc version by Pete Zaitcev, which was - * adapted from the i386 version by Paul Mackerras - * - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * Copyright (c) 2002 Pete Zaitcev (zaitcev@yahoo.com) - * - Incorporating suggestions made by Linus Torvalds and Dave Miller - */ - -#ifndef _ASM_THREAD_INFO_H -#define _ASM_THREAD_INFO_H - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ - -#include -#include -#include - -/* - * Low level task data. - * - * If you change this, change the TI_* offsets below to match. - */ -#define NSWINS 8 -struct thread_info { - unsigned long uwinmask; - struct task_struct *task; /* main task structure */ - struct exec_domain *exec_domain; /* execution domain */ - unsigned long flags; /* low level flags */ - int cpu; /* cpu we're on */ - int preempt_count; /* 0 => preemptable, - <0 => BUG */ - int softirq_count; - int hardirq_count; - - /* Context switch saved kernel state. */ - unsigned long ksp; /* ... ksp __attribute__ ((aligned (8))); */ - unsigned long kpc; - unsigned long kpsr; - unsigned long kwim; - - /* A place to store user windows and stack pointers - * when the stack needs inspection. - */ - struct reg_window reg_window[NSWINS]; /* align for ldd! */ - unsigned long rwbuf_stkptrs[NSWINS]; - unsigned long w_saved; - - struct restart_block restart_block; -}; - -/* - * macros/functions for gaining access to the thread information structure - * - * preempt_count needs to be 1 initially, until the scheduler is functional. - */ -#define INIT_THREAD_INFO(tsk) \ -{ \ - .uwinmask = 0, \ - .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = 0, \ - .cpu = 0, \ - .preempt_count = 1, \ - .restart_block = { \ - .fn = do_no_restart_syscall, \ - }, \ -} - -#define init_thread_info (init_thread_union.thread_info) -#define init_stack (init_thread_union.stack) - -/* how to get the thread information struct from C */ -register struct thread_info *current_thread_info_reg asm("g6"); -#define current_thread_info() (current_thread_info_reg) - -/* - * thread information allocation - */ -#if PAGE_SHIFT == 13 -#define THREAD_INFO_ORDER 0 -#else /* PAGE_SHIFT */ -#define THREAD_INFO_ORDER 1 +#ifndef ___ASM_SPARC_THREAD_INFO_H +#define ___ASM_SPARC_THREAD_INFO_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info, void) -#define alloc_thread_info(tsk) BTFIXUP_CALL(alloc_thread_info)() - -BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *) -#define free_thread_info(ti) BTFIXUP_CALL(free_thread_info)(ti) - -#endif /* __ASSEMBLY__ */ - -/* - * Size of kernel stack for each process. - * Observe the order of get_free_pages() in alloc_thread_info(). - * The sun4 has 8K stack too, because it's short on memory, and 16K is a waste. - */ -#define THREAD_SIZE 8192 - -/* - * Offsets in thread_info structure, used in assembly code - * The "#define REGWIN_SZ 0x40" was abolished, so no multiplications. - */ -#define TI_UWINMASK 0x00 /* uwinmask */ -#define TI_TASK 0x04 -#define TI_EXECDOMAIN 0x08 /* exec_domain */ -#define TI_FLAGS 0x0c -#define TI_CPU 0x10 -#define TI_PREEMPT 0x14 /* preempt_count */ -#define TI_SOFTIRQ 0x18 /* softirq_count */ -#define TI_HARDIRQ 0x1c /* hardirq_count */ -#define TI_KSP 0x20 /* ksp */ -#define TI_KPC 0x24 /* kpc (ldd'ed with kpc) */ -#define TI_KPSR 0x28 /* kpsr */ -#define TI_KWIM 0x2c /* kwim (ldd'ed with kpsr) */ -#define TI_REG_WINDOW 0x30 -#define TI_RWIN_SPTRS 0x230 -#define TI_W_SAVED 0x250 -/* #define TI_RESTART_BLOCK 0x25n */ /* Nobody cares */ - -#define PREEMPT_ACTIVE 0x4000000 - -/* - * thread information flag bit numbers - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -/* flag bit 1 is available */ -#define TIF_SIGPENDING 2 /* signal pending */ -#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ -#define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */ -#define TIF_USEDFPU 8 /* FPU was used by this task - * this quantum (SMP) */ -#define TIF_POLLING_NRFLAG 9 /* true if poll_idle() is polling - * TIF_NEED_RESCHED */ -#define TIF_MEMDIE 10 - -/* as above, but as bit values */ -#define _TIF_SYSCALL_TRACE (1< +#include +#include + +/* + * Low level task data. + * + * If you change this, change the TI_* offsets below to match. + */ +#define NSWINS 8 +struct thread_info { + unsigned long uwinmask; + struct task_struct *task; /* main task structure */ + struct exec_domain *exec_domain; /* execution domain */ + unsigned long flags; /* low level flags */ + int cpu; /* cpu we're on */ + int preempt_count; /* 0 => preemptable, + <0 => BUG */ + int softirq_count; + int hardirq_count; + + /* Context switch saved kernel state. */ + unsigned long ksp; /* ... ksp __attribute__ ((aligned (8))); */ + unsigned long kpc; + unsigned long kpsr; + unsigned long kwim; + + /* A place to store user windows and stack pointers + * when the stack needs inspection. + */ + struct reg_window reg_window[NSWINS]; /* align for ldd! */ + unsigned long rwbuf_stkptrs[NSWINS]; + unsigned long w_saved; + + struct restart_block restart_block; +}; + +/* + * macros/functions for gaining access to the thread information structure + * + * preempt_count needs to be 1 initially, until the scheduler is functional. + */ +#define INIT_THREAD_INFO(tsk) \ +{ \ + .uwinmask = 0, \ + .task = &tsk, \ + .exec_domain = &default_exec_domain, \ + .flags = 0, \ + .cpu = 0, \ + .preempt_count = 1, \ + .restart_block = { \ + .fn = do_no_restart_syscall, \ + }, \ +} + +#define init_thread_info (init_thread_union.thread_info) +#define init_stack (init_thread_union.stack) + +/* how to get the thread information struct from C */ +register struct thread_info *current_thread_info_reg asm("g6"); +#define current_thread_info() (current_thread_info_reg) + +/* + * thread information allocation + */ +#if PAGE_SHIFT == 13 +#define THREAD_INFO_ORDER 0 +#else /* PAGE_SHIFT */ +#define THREAD_INFO_ORDER 1 +#endif + +BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info, void) +#define alloc_thread_info(tsk) BTFIXUP_CALL(alloc_thread_info)() + +BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *) +#define free_thread_info(ti) BTFIXUP_CALL(free_thread_info)(ti) + +#endif /* __ASSEMBLY__ */ + +/* + * Size of kernel stack for each process. + * Observe the order of get_free_pages() in alloc_thread_info(). + * The sun4 has 8K stack too, because it's short on memory, and 16K is a waste. + */ +#define THREAD_SIZE 8192 + +/* + * Offsets in thread_info structure, used in assembly code + * The "#define REGWIN_SZ 0x40" was abolished, so no multiplications. + */ +#define TI_UWINMASK 0x00 /* uwinmask */ +#define TI_TASK 0x04 +#define TI_EXECDOMAIN 0x08 /* exec_domain */ +#define TI_FLAGS 0x0c +#define TI_CPU 0x10 +#define TI_PREEMPT 0x14 /* preempt_count */ +#define TI_SOFTIRQ 0x18 /* softirq_count */ +#define TI_HARDIRQ 0x1c /* hardirq_count */ +#define TI_KSP 0x20 /* ksp */ +#define TI_KPC 0x24 /* kpc (ldd'ed with kpc) */ +#define TI_KPSR 0x28 /* kpsr */ +#define TI_KWIM 0x2c /* kwim (ldd'ed with kpsr) */ +#define TI_REG_WINDOW 0x30 +#define TI_RWIN_SPTRS 0x230 +#define TI_W_SAVED 0x250 +/* #define TI_RESTART_BLOCK 0x25n */ /* Nobody cares */ + +#define PREEMPT_ACTIVE 0x4000000 + +/* + * thread information flag bit numbers + */ +#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ +/* flag bit 1 is available */ +#define TIF_SIGPENDING 2 /* signal pending */ +#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */ +#define TIF_USEDFPU 8 /* FPU was used by this task + * this quantum (SMP) */ +#define TIF_POLLING_NRFLAG 9 /* true if poll_idle() is polling + * TIF_NEED_RESCHED */ +#define TIF_MEMDIE 10 + +/* as above, but as bit values */ +#define _TIF_SYSCALL_TRACE (1< + +#ifndef __ASSEMBLY__ + +#include +#include + +struct task_struct; +struct exec_domain; + +struct thread_info { + /* D$ line 1 */ + struct task_struct *task; + unsigned long flags; + __u8 fpsaved[7]; + __u8 status; + unsigned long ksp; + + /* D$ line 2 */ + unsigned long fault_address; + struct pt_regs *kregs; + struct exec_domain *exec_domain; + int preempt_count; /* 0 => preemptable, <0 => BUG */ + __u8 new_child; + __u8 syscall_noerror; + __u16 cpu; + + unsigned long *utraps; + + struct reg_window reg_window[NSWINS]; + unsigned long rwbuf_stkptrs[NSWINS]; + + unsigned long gsr[7]; + unsigned long xfsr[7]; + + __u64 __user *user_cntd0; + __u64 __user *user_cntd1; + __u64 kernel_cntd0, kernel_cntd1; + __u64 pcr_reg; + + struct restart_block restart_block; + + struct pt_regs *kern_una_regs; + unsigned int kern_una_insn; + + unsigned long fpregs[0] __attribute__ ((aligned(64))); +}; + +#endif /* !(__ASSEMBLY__) */ + +/* offsets into the thread_info struct for assembly code access */ +#define TI_TASK 0x00000000 +#define TI_FLAGS 0x00000008 +#define TI_FAULT_CODE (TI_FLAGS + TI_FLAG_BYTE_FAULT_CODE) +#define TI_WSTATE (TI_FLAGS + TI_FLAG_BYTE_WSTATE) +#define TI_CWP (TI_FLAGS + TI_FLAG_BYTE_CWP) +#define TI_CURRENT_DS (TI_FLAGS + TI_FLAG_BYTE_CURRENT_DS) +#define TI_FPDEPTH (TI_FLAGS + TI_FLAG_BYTE_FPDEPTH) +#define TI_WSAVED (TI_FLAGS + TI_FLAG_BYTE_WSAVED) +#define TI_FPSAVED 0x00000010 +#define TI_KSP 0x00000018 +#define TI_FAULT_ADDR 0x00000020 +#define TI_KREGS 0x00000028 +#define TI_EXEC_DOMAIN 0x00000030 +#define TI_PRE_COUNT 0x00000038 +#define TI_NEW_CHILD 0x0000003c +#define TI_SYS_NOERROR 0x0000003d +#define TI_CPU 0x0000003e +#define TI_UTRAPS 0x00000040 +#define TI_REG_WINDOW 0x00000048 +#define TI_RWIN_SPTRS 0x000003c8 +#define TI_GSR 0x00000400 +#define TI_XFSR 0x00000438 +#define TI_USER_CNTD0 0x00000470 +#define TI_USER_CNTD1 0x00000478 +#define TI_KERN_CNTD0 0x00000480 +#define TI_KERN_CNTD1 0x00000488 +#define TI_PCR 0x00000490 +#define TI_RESTART_BLOCK 0x00000498 +#define TI_KUNA_REGS 0x000004c0 +#define TI_KUNA_INSN 0x000004c8 +#define TI_FPREGS 0x00000500 + +/* We embed this in the uppermost byte of thread_info->flags */ +#define FAULT_CODE_WRITE 0x01 /* Write access, implies D-TLB */ +#define FAULT_CODE_DTLB 0x02 /* Miss happened in D-TLB */ +#define FAULT_CODE_ITLB 0x04 /* Miss happened in I-TLB */ +#define FAULT_CODE_WINFIXUP 0x08 /* Miss happened during spill/fill */ +#define FAULT_CODE_BLKCOMMIT 0x10 /* Use blk-commit ASI in copy_page */ + +#if PAGE_SHIFT == 13 +#define THREAD_SIZE (2*PAGE_SIZE) +#define THREAD_SHIFT (PAGE_SHIFT + 1) +#else /* PAGE_SHIFT == 13 */ +#define THREAD_SIZE PAGE_SIZE +#define THREAD_SHIFT PAGE_SHIFT +#endif /* PAGE_SHIFT == 13 */ + +#define PREEMPT_ACTIVE 0x4000000 + +/* + * macros/functions for gaining access to the thread information structure + * + * preempt_count needs to be 1 initially, until the scheduler is functional. + */ +#ifndef __ASSEMBLY__ + +#define INIT_THREAD_INFO(tsk) \ +{ \ + .task = &tsk, \ + .flags = ((unsigned long)ASI_P) << TI_FLAG_CURRENT_DS_SHIFT, \ + .exec_domain = &default_exec_domain, \ + .preempt_count = 1, \ + .restart_block = { \ + .fn = do_no_restart_syscall, \ + }, \ +} + +#define init_thread_info (init_thread_union.thread_info) +#define init_stack (init_thread_union.stack) + +/* how to get the thread information struct from C */ +register struct thread_info *current_thread_info_reg asm("g6"); +#define current_thread_info() (current_thread_info_reg) + +/* thread information allocation */ +#if PAGE_SHIFT == 13 +#define __THREAD_INFO_ORDER 1 +#else /* PAGE_SHIFT == 13 */ +#define __THREAD_INFO_ORDER 0 +#endif /* PAGE_SHIFT == 13 */ + +#ifdef CONFIG_DEBUG_STACK_USAGE +#define alloc_thread_info(tsk) \ +({ \ + struct thread_info *ret; \ + \ + ret = (struct thread_info *) \ + __get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER); \ + if (ret) \ + memset(ret, 0, PAGE_SIZE<<__THREAD_INFO_ORDER); \ + ret; \ +}) +#else +#define alloc_thread_info(tsk) \ + ((struct thread_info *)__get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER)) +#endif + +#define free_thread_info(ti) \ + free_pages((unsigned long)(ti),__THREAD_INFO_ORDER) + +#define __thread_flag_byte_ptr(ti) \ + ((unsigned char *)(&((ti)->flags))) +#define __cur_thread_flag_byte_ptr __thread_flag_byte_ptr(current_thread_info()) + +#define get_thread_fault_code() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FAULT_CODE]) +#define set_thread_fault_code(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FAULT_CODE] = (val)) +#define get_thread_wstate() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSTATE]) +#define set_thread_wstate(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSTATE] = (val)) +#define get_thread_cwp() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CWP]) +#define set_thread_cwp(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CWP] = (val)) +#define get_thread_current_ds() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CURRENT_DS]) +#define set_thread_current_ds(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CURRENT_DS] = (val)) +#define get_thread_fpdepth() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FPDEPTH]) +#define set_thread_fpdepth(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FPDEPTH] = (val)) +#define get_thread_wsaved() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSAVED]) +#define set_thread_wsaved(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSAVED] = (val)) + +#endif /* !(__ASSEMBLY__) */ + +/* + * Thread information flags, only 16 bits are available as we encode + * other values into the upper 6 bytes. + * + * On trap return we need to test several values: + * + * user: need_resched, notify_resume, sigpending, wsaved, perfctr + * kernel: fpdepth + * + * So to check for work in the kernel case we simply load the fpdepth + * byte out of the flags and test it. For the user case we encode the + * lower 3 bytes of flags as follows: + * ---------------------------------------- + * | wsaved | flags byte 1 | flags byte 2 | + * ---------------------------------------- + * This optimizes the user test into: + * ldx [%g6 + TI_FLAGS], REG1 + * sethi %hi(_TIF_USER_WORK_MASK), REG2 + * or REG2, %lo(_TIF_USER_WORK_MASK), REG2 + * andcc REG1, REG2, %g0 + * be,pt no_work_to_do + * nop + */ +#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ +/* flags bit 1 is available */ +#define TIF_SIGPENDING 2 /* signal pending */ +#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_PERFCTR 4 /* performance counters active */ +#define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */ +/* flag bit 6 is available */ +#define TIF_32BIT 7 /* 32-bit binary */ +/* flag bit 8 is available */ +#define TIF_SECCOMP 9 /* secure computing */ +#define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */ +/* flag bit 11 is available */ +/* NOTE: Thread flags >= 12 should be ones we have no interest + * in using in assembly, else we can't use the mask as + * an immediate value in instructions such as andcc. + */ +#define TIF_ABI_PENDING 12 +#define TIF_MEMDIE 13 +#define TIF_POLLING_NRFLAG 14 + +#define _TIF_SYSCALL_TRACE (1<status |= TS_RESTORE_SIGMASK; + set_bit(TIF_SIGPENDING, &ti->flags); +} +#endif /* !__ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + +#endif /* _ASM_THREAD_INFO_H */ diff --git a/include/asm-sparc/timer.h b/include/asm-sparc/timer.h index 361e53898dd7..475baa05a96e 100644 --- a/include/asm-sparc/timer.h +++ b/include/asm-sparc/timer.h @@ -1,107 +1,8 @@ -/* - * timer.h: Definitions for the timer chips on the Sparc. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - - -#ifndef _SPARC_TIMER_H -#define _SPARC_TIMER_H - -#include /* For SUN4M_NCPUS */ -#include -#include - -/* Timer structures. The interrupt timer has two properties which - * are the counter (which is handled in do_timer in sched.c) and the limit. - * This limit is where the timer's counter 'wraps' around. Oddly enough, - * the sun4c timer when it hits the limit wraps back to 1 and not zero - * thus when calculating the value at which it will fire a microsecond you - * must adjust by one. Thanks SUN for designing such great hardware ;( - */ - -/* Note that I am only going to use the timer that interrupts at - * Sparc IRQ 10. There is another one available that can fire at - * IRQ 14. Currently it is left untouched, we keep the PROM's limit - * register value and let the prom take these interrupts. This allows - * L1-A to work. - */ - -struct sun4c_timer_info { - __volatile__ unsigned int cur_count10; - __volatile__ unsigned int timer_limit10; - __volatile__ unsigned int cur_count14; - __volatile__ unsigned int timer_limit14; -}; - -#define SUN4C_TIMER_PHYSADDR 0xf3000000 -#ifdef CONFIG_SUN4 -#define SUN_TIMER_PHYSADDR SUN4_300_TIMER_PHYSADDR +#ifndef ___ASM_SPARC_TIMER_H +#define ___ASM_SPARC_TIMER_H +#if defined(__sparc__) && defined(__arch64__) +#include #else -#define SUN_TIMER_PHYSADDR SUN4C_TIMER_PHYSADDR +#include +#endif #endif - -/* A sun4m has two blocks of registers which are probably of the same - * structure. LSI Logic's L64851 is told to _decrement_ from the limit - * value. Aurora behaves similarly but its limit value is compacted in - * other fashion (it's wider). Documented fields are defined here. - */ - -/* As with the interrupt register, we have two classes of timer registers - * which are per-cpu and master. Per-cpu timers only hit that cpu and are - * only level 14 ticks, master timer hits all cpus and is level 10. - */ - -#define SUN4M_PRM_CNT_L 0x80000000 -#define SUN4M_PRM_CNT_LVALUE 0x7FFFFC00 - -struct sun4m_timer_percpu_info { - __volatile__ unsigned int l14_timer_limit; /* Initial value is 0x009c4000 */ - __volatile__ unsigned int l14_cur_count; - - /* This register appears to be write only and/or inaccessible - * on Uni-Processor sun4m machines. - */ - __volatile__ unsigned int l14_limit_noclear; /* Data access error is here */ - - __volatile__ unsigned int cntrl; /* =1 after POST on Aurora */ - __volatile__ unsigned char space[PAGE_SIZE - 16]; -}; - -struct sun4m_timer_regs { - struct sun4m_timer_percpu_info cpu_timers[SUN4M_NCPUS]; - volatile unsigned int l10_timer_limit; - volatile unsigned int l10_cur_count; - - /* Again, this appears to be write only and/or inaccessible - * on uni-processor sun4m machines. - */ - volatile unsigned int l10_limit_noclear; - - /* This register too, it must be magic. */ - volatile unsigned int foobar; - - volatile unsigned int cfg; /* equals zero at boot time... */ -}; - -#define SUN4D_PRM_CNT_L 0x80000000 -#define SUN4D_PRM_CNT_LVALUE 0x7FFFFC00 - -struct sun4d_timer_regs { - volatile unsigned int l10_timer_limit; - volatile unsigned int l10_cur_countx; - volatile unsigned int l10_limit_noclear; - volatile unsigned int ctrl; - volatile unsigned int l10_cur_count; -}; - -extern struct sun4d_timer_regs *sun4d_timers; - -extern __volatile__ unsigned int *master_l10_counter; -extern __volatile__ unsigned int *master_l10_limit; - -/* FIXME: Make do_[gs]ettimeofday btfixup calls */ -BTFIXUPDEF_CALL(int, bus_do_settimeofday, struct timespec *tv) -#define bus_do_settimeofday(tv) BTFIXUP_CALL(bus_do_settimeofday)(tv) - -#endif /* !(_SPARC_TIMER_H) */ diff --git a/include/asm-sparc/timer_32.h b/include/asm-sparc/timer_32.h new file mode 100644 index 000000000000..361e53898dd7 --- /dev/null +++ b/include/asm-sparc/timer_32.h @@ -0,0 +1,107 @@ +/* + * timer.h: Definitions for the timer chips on the Sparc. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + + +#ifndef _SPARC_TIMER_H +#define _SPARC_TIMER_H + +#include /* For SUN4M_NCPUS */ +#include +#include + +/* Timer structures. The interrupt timer has two properties which + * are the counter (which is handled in do_timer in sched.c) and the limit. + * This limit is where the timer's counter 'wraps' around. Oddly enough, + * the sun4c timer when it hits the limit wraps back to 1 and not zero + * thus when calculating the value at which it will fire a microsecond you + * must adjust by one. Thanks SUN for designing such great hardware ;( + */ + +/* Note that I am only going to use the timer that interrupts at + * Sparc IRQ 10. There is another one available that can fire at + * IRQ 14. Currently it is left untouched, we keep the PROM's limit + * register value and let the prom take these interrupts. This allows + * L1-A to work. + */ + +struct sun4c_timer_info { + __volatile__ unsigned int cur_count10; + __volatile__ unsigned int timer_limit10; + __volatile__ unsigned int cur_count14; + __volatile__ unsigned int timer_limit14; +}; + +#define SUN4C_TIMER_PHYSADDR 0xf3000000 +#ifdef CONFIG_SUN4 +#define SUN_TIMER_PHYSADDR SUN4_300_TIMER_PHYSADDR +#else +#define SUN_TIMER_PHYSADDR SUN4C_TIMER_PHYSADDR +#endif + +/* A sun4m has two blocks of registers which are probably of the same + * structure. LSI Logic's L64851 is told to _decrement_ from the limit + * value. Aurora behaves similarly but its limit value is compacted in + * other fashion (it's wider). Documented fields are defined here. + */ + +/* As with the interrupt register, we have two classes of timer registers + * which are per-cpu and master. Per-cpu timers only hit that cpu and are + * only level 14 ticks, master timer hits all cpus and is level 10. + */ + +#define SUN4M_PRM_CNT_L 0x80000000 +#define SUN4M_PRM_CNT_LVALUE 0x7FFFFC00 + +struct sun4m_timer_percpu_info { + __volatile__ unsigned int l14_timer_limit; /* Initial value is 0x009c4000 */ + __volatile__ unsigned int l14_cur_count; + + /* This register appears to be write only and/or inaccessible + * on Uni-Processor sun4m machines. + */ + __volatile__ unsigned int l14_limit_noclear; /* Data access error is here */ + + __volatile__ unsigned int cntrl; /* =1 after POST on Aurora */ + __volatile__ unsigned char space[PAGE_SIZE - 16]; +}; + +struct sun4m_timer_regs { + struct sun4m_timer_percpu_info cpu_timers[SUN4M_NCPUS]; + volatile unsigned int l10_timer_limit; + volatile unsigned int l10_cur_count; + + /* Again, this appears to be write only and/or inaccessible + * on uni-processor sun4m machines. + */ + volatile unsigned int l10_limit_noclear; + + /* This register too, it must be magic. */ + volatile unsigned int foobar; + + volatile unsigned int cfg; /* equals zero at boot time... */ +}; + +#define SUN4D_PRM_CNT_L 0x80000000 +#define SUN4D_PRM_CNT_LVALUE 0x7FFFFC00 + +struct sun4d_timer_regs { + volatile unsigned int l10_timer_limit; + volatile unsigned int l10_cur_countx; + volatile unsigned int l10_limit_noclear; + volatile unsigned int ctrl; + volatile unsigned int l10_cur_count; +}; + +extern struct sun4d_timer_regs *sun4d_timers; + +extern __volatile__ unsigned int *master_l10_counter; +extern __volatile__ unsigned int *master_l10_limit; + +/* FIXME: Make do_[gs]ettimeofday btfixup calls */ +BTFIXUPDEF_CALL(int, bus_do_settimeofday, struct timespec *tv) +#define bus_do_settimeofday(tv) BTFIXUP_CALL(bus_do_settimeofday)(tv) + +#endif /* !(_SPARC_TIMER_H) */ diff --git a/include/asm-sparc/timer_64.h b/include/asm-sparc/timer_64.h new file mode 100644 index 000000000000..5b779fd1f788 --- /dev/null +++ b/include/asm-sparc/timer_64.h @@ -0,0 +1,30 @@ +/* timer.h: System timer definitions for sun5. + * + * Copyright (C) 1997, 2008 David S. Miller (davem@davemloft.net) + */ + +#ifndef _SPARC64_TIMER_H +#define _SPARC64_TIMER_H + +#include +#include + +struct sparc64_tick_ops { + unsigned long (*get_tick)(void); + int (*add_compare)(unsigned long); + unsigned long softint_mask; + void (*disable_irq)(void); + + void (*init_tick)(void); + unsigned long (*add_tick)(unsigned long); + + char *name; +}; + +extern struct sparc64_tick_ops *tick_ops; + +extern unsigned long sparc64_get_clock_tick(unsigned int cpu); +extern void __devinit setup_sparc64_timer(void); +extern void __init time_init(void); + +#endif /* _SPARC64_TIMER_H */ diff --git a/include/asm-sparc/timex.h b/include/asm-sparc/timex.h index 71b45c90ccae..01d9f199d452 100644 --- a/include/asm-sparc/timex.h +++ b/include/asm-sparc/timex.h @@ -1,15 +1,8 @@ -/* - * linux/include/asm-sparc/timex.h - * - * sparc architecture timex specifications - */ -#ifndef _ASMsparc_TIMEX_H -#define _ASMsparc_TIMEX_H - -#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ - -/* XXX Maybe do something better at some point... -DaveM */ -typedef unsigned long cycles_t; -#define get_cycles() (0) - +#ifndef ___ASM_SPARC_TIMEX_H +#define ___ASM_SPARC_TIMEX_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif diff --git a/include/asm-sparc/timex_32.h b/include/asm-sparc/timex_32.h new file mode 100644 index 000000000000..71b45c90ccae --- /dev/null +++ b/include/asm-sparc/timex_32.h @@ -0,0 +1,15 @@ +/* + * linux/include/asm-sparc/timex.h + * + * sparc architecture timex specifications + */ +#ifndef _ASMsparc_TIMEX_H +#define _ASMsparc_TIMEX_H + +#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ + +/* XXX Maybe do something better at some point... -DaveM */ +typedef unsigned long cycles_t; +#define get_cycles() (0) + +#endif diff --git a/include/asm-sparc/timex_64.h b/include/asm-sparc/timex_64.h new file mode 100644 index 000000000000..c622535c4560 --- /dev/null +++ b/include/asm-sparc/timex_64.h @@ -0,0 +1,19 @@ +/* + * linux/include/asm-sparc64/timex.h + * + * sparc64 architecture timex specifications + */ +#ifndef _ASMsparc64_TIMEX_H +#define _ASMsparc64_TIMEX_H + +#include + +#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ + +/* Getting on the cycle counter on sparc64. */ +typedef unsigned long cycles_t; +#define get_cycles() tick_ops->get_tick() + +#define ARCH_HAS_READ_CURRENT_TIMER + +#endif diff --git a/include/asm-sparc/tlb.h b/include/asm-sparc/tlb.h index 6d02d1ce53f3..a821057327c4 100644 --- a/include/asm-sparc/tlb.h +++ b/include/asm-sparc/tlb.h @@ -1,24 +1,8 @@ -#ifndef _SPARC_TLB_H -#define _SPARC_TLB_H - -#define tlb_start_vma(tlb, vma) \ -do { \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define tlb_end_vma(tlb, vma) \ -do { \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define __tlb_remove_tlb_entry(tlb, pte, address) \ - do { } while (0) - -#define tlb_flush(tlb) \ -do { \ - flush_tlb_mm((tlb)->mm); \ -} while (0) - -#include - -#endif /* _SPARC_TLB_H */ +#ifndef ___ASM_SPARC_TLB_H +#define ___ASM_SPARC_TLB_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/tlb_32.h b/include/asm-sparc/tlb_32.h new file mode 100644 index 000000000000..6d02d1ce53f3 --- /dev/null +++ b/include/asm-sparc/tlb_32.h @@ -0,0 +1,24 @@ +#ifndef _SPARC_TLB_H +#define _SPARC_TLB_H + +#define tlb_start_vma(tlb, vma) \ +do { \ + flush_cache_range(vma, vma->vm_start, vma->vm_end); \ +} while (0) + +#define tlb_end_vma(tlb, vma) \ +do { \ + flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ +} while (0) + +#define __tlb_remove_tlb_entry(tlb, pte, address) \ + do { } while (0) + +#define tlb_flush(tlb) \ +do { \ + flush_tlb_mm((tlb)->mm); \ +} while (0) + +#include + +#endif /* _SPARC_TLB_H */ diff --git a/include/asm-sparc/tlb_64.h b/include/asm-sparc/tlb_64.h new file mode 100644 index 000000000000..ec81cdedef2c --- /dev/null +++ b/include/asm-sparc/tlb_64.h @@ -0,0 +1,111 @@ +#ifndef _SPARC64_TLB_H +#define _SPARC64_TLB_H + +#include +#include +#include +#include +#include + +#define TLB_BATCH_NR 192 + +/* + * For UP we don't need to worry about TLB flush + * and page free order so much.. + */ +#ifdef CONFIG_SMP + #define FREE_PTE_NR 506 + #define tlb_fast_mode(bp) ((bp)->pages_nr == ~0U) +#else + #define FREE_PTE_NR 1 + #define tlb_fast_mode(bp) 1 +#endif + +struct mmu_gather { + struct mm_struct *mm; + unsigned int pages_nr; + unsigned int need_flush; + unsigned int fullmm; + unsigned int tlb_nr; + unsigned long vaddrs[TLB_BATCH_NR]; + struct page *pages[FREE_PTE_NR]; +}; + +DECLARE_PER_CPU(struct mmu_gather, mmu_gathers); + +#ifdef CONFIG_SMP +extern void smp_flush_tlb_pending(struct mm_struct *, + unsigned long, unsigned long *); +#endif + +extern void __flush_tlb_pending(unsigned long, unsigned long, unsigned long *); +extern void flush_tlb_pending(void); + +static inline struct mmu_gather *tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush) +{ + struct mmu_gather *mp = &get_cpu_var(mmu_gathers); + + BUG_ON(mp->tlb_nr); + + mp->mm = mm; + mp->pages_nr = num_online_cpus() > 1 ? 0U : ~0U; + mp->fullmm = full_mm_flush; + + return mp; +} + + +static inline void tlb_flush_mmu(struct mmu_gather *mp) +{ + if (mp->need_flush) { + free_pages_and_swap_cache(mp->pages, mp->pages_nr); + mp->pages_nr = 0; + mp->need_flush = 0; + } + +} + +#ifdef CONFIG_SMP +extern void smp_flush_tlb_mm(struct mm_struct *mm); +#define do_flush_tlb_mm(mm) smp_flush_tlb_mm(mm) +#else +#define do_flush_tlb_mm(mm) __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT) +#endif + +static inline void tlb_finish_mmu(struct mmu_gather *mp, unsigned long start, unsigned long end) +{ + tlb_flush_mmu(mp); + + if (mp->fullmm) + mp->fullmm = 0; + else + flush_tlb_pending(); + + /* keep the page table cache within bounds */ + check_pgt_cache(); + + put_cpu_var(mmu_gathers); +} + +static inline void tlb_remove_page(struct mmu_gather *mp, struct page *page) +{ + if (tlb_fast_mode(mp)) { + free_page_and_swap_cache(page); + return; + } + mp->need_flush = 1; + mp->pages[mp->pages_nr++] = page; + if (mp->pages_nr >= FREE_PTE_NR) + tlb_flush_mmu(mp); +} + +#define tlb_remove_tlb_entry(mp,ptep,addr) do { } while (0) +#define pte_free_tlb(mp, ptepage) pte_free((mp)->mm, ptepage) +#define pmd_free_tlb(mp, pmdp) pmd_free((mp)->mm, pmdp) +#define pud_free_tlb(tlb,pudp) __pud_free_tlb(tlb,pudp) + +#define tlb_migrate_finish(mm) do { } while (0) +#define tlb_start_vma(tlb, vma) do { } while (0) +#define tlb_end_vma(tlb, vma) do { } while (0) + +#endif /* _SPARC64_TLB_H */ diff --git a/include/asm-sparc/tlbflush.h b/include/asm-sparc/tlbflush.h index b957e29d2ae1..6e6bc12227b8 100644 --- a/include/asm-sparc/tlbflush.h +++ b/include/asm-sparc/tlbflush.h @@ -1,60 +1,8 @@ -#ifndef _SPARC_TLBFLUSH_H -#define _SPARC_TLBFLUSH_H - -#include -// #include - -/* - * TLB flushing: - * - * - flush_tlb() flushes the current mm struct TLBs XXX Exists? - * - flush_tlb_all() flushes all processes TLBs - * - flush_tlb_mm(mm) flushes the specified mm context TLB's - * - flush_tlb_page(vma, vmaddr) flushes one page - * - flush_tlb_range(vma, start, end) flushes a range of pages - * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages - */ - -#ifdef CONFIG_SMP - -BTFIXUPDEF_CALL(void, local_flush_tlb_all, void) -BTFIXUPDEF_CALL(void, local_flush_tlb_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, local_flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, local_flush_tlb_page, struct vm_area_struct *, unsigned long) - -#define local_flush_tlb_all() BTFIXUP_CALL(local_flush_tlb_all)() -#define local_flush_tlb_mm(mm) BTFIXUP_CALL(local_flush_tlb_mm)(mm) -#define local_flush_tlb_range(vma,start,end) BTFIXUP_CALL(local_flush_tlb_range)(vma,start,end) -#define local_flush_tlb_page(vma,addr) BTFIXUP_CALL(local_flush_tlb_page)(vma,addr) - -extern void smp_flush_tlb_all(void); -extern void smp_flush_tlb_mm(struct mm_struct *mm); -extern void smp_flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, - unsigned long end); -extern void smp_flush_tlb_page(struct vm_area_struct *mm, unsigned long page); - -#endif /* CONFIG_SMP */ - -BTFIXUPDEF_CALL(void, flush_tlb_all, void) -BTFIXUPDEF_CALL(void, flush_tlb_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, flush_tlb_page, struct vm_area_struct *, unsigned long) - -#define flush_tlb_all() BTFIXUP_CALL(flush_tlb_all)() -#define flush_tlb_mm(mm) BTFIXUP_CALL(flush_tlb_mm)(mm) -#define flush_tlb_range(vma,start,end) BTFIXUP_CALL(flush_tlb_range)(vma,start,end) -#define flush_tlb_page(vma,addr) BTFIXUP_CALL(flush_tlb_page)(vma,addr) - -// #define flush_tlb() flush_tlb_mm(current->active_mm) /* XXX Sure? */ - -/* - * This is a kludge, until I know better. --zaitcev XXX - */ -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) -{ - flush_tlb_all(); -} - -#endif /* _SPARC_TLBFLUSH_H */ +#ifndef ___ASM_SPARC_TLBFLUSH_H +#define ___ASM_SPARC_TLBFLUSH_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/tlbflush_32.h b/include/asm-sparc/tlbflush_32.h new file mode 100644 index 000000000000..fe0a71abc9bb --- /dev/null +++ b/include/asm-sparc/tlbflush_32.h @@ -0,0 +1,60 @@ +#ifndef _SPARC_TLBFLUSH_H +#define _SPARC_TLBFLUSH_H + +#include +// #include + +/* + * TLB flushing: + * + * - flush_tlb() flushes the current mm struct TLBs XXX Exists? + * - flush_tlb_all() flushes all processes TLBs + * - flush_tlb_mm(mm) flushes the specified mm context TLB's + * - flush_tlb_page(vma, vmaddr) flushes one page + * - flush_tlb_range(vma, start, end) flushes a range of pages + * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages + */ + +#ifdef CONFIG_SMP + +BTFIXUPDEF_CALL(void, local_flush_tlb_all, void) +BTFIXUPDEF_CALL(void, local_flush_tlb_mm, struct mm_struct *) +BTFIXUPDEF_CALL(void, local_flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long) +BTFIXUPDEF_CALL(void, local_flush_tlb_page, struct vm_area_struct *, unsigned long) + +#define local_flush_tlb_all() BTFIXUP_CALL(local_flush_tlb_all)() +#define local_flush_tlb_mm(mm) BTFIXUP_CALL(local_flush_tlb_mm)(mm) +#define local_flush_tlb_range(vma,start,end) BTFIXUP_CALL(local_flush_tlb_range)(vma,start,end) +#define local_flush_tlb_page(vma,addr) BTFIXUP_CALL(local_flush_tlb_page)(vma,addr) + +extern void smp_flush_tlb_all(void); +extern void smp_flush_tlb_mm(struct mm_struct *mm); +extern void smp_flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end); +extern void smp_flush_tlb_page(struct vm_area_struct *mm, unsigned long page); + +#endif /* CONFIG_SMP */ + +BTFIXUPDEF_CALL(void, flush_tlb_all, void) +BTFIXUPDEF_CALL(void, flush_tlb_mm, struct mm_struct *) +BTFIXUPDEF_CALL(void, flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long) +BTFIXUPDEF_CALL(void, flush_tlb_page, struct vm_area_struct *, unsigned long) + +#define flush_tlb_all() BTFIXUP_CALL(flush_tlb_all)() +#define flush_tlb_mm(mm) BTFIXUP_CALL(flush_tlb_mm)(mm) +#define flush_tlb_range(vma,start,end) BTFIXUP_CALL(flush_tlb_range)(vma,start,end) +#define flush_tlb_page(vma,addr) BTFIXUP_CALL(flush_tlb_page)(vma,addr) + +// #define flush_tlb() flush_tlb_mm(current->active_mm) /* XXX Sure? */ + +/* + * This is a kludge, until I know better. --zaitcev XXX + */ +static inline void flush_tlb_kernel_range(unsigned long start, + unsigned long end) +{ + flush_tlb_all(); +} + +#endif /* _SPARC_TLBFLUSH_H */ diff --git a/include/asm-sparc/tlbflush_64.h b/include/asm-sparc/tlbflush_64.h new file mode 100644 index 000000000000..fbb675dbe0c9 --- /dev/null +++ b/include/asm-sparc/tlbflush_64.h @@ -0,0 +1,44 @@ +#ifndef _SPARC64_TLBFLUSH_H +#define _SPARC64_TLBFLUSH_H + +#include +#include + +/* TSB flush operations. */ +struct mmu_gather; +extern void flush_tsb_kernel_range(unsigned long start, unsigned long end); +extern void flush_tsb_user(struct mmu_gather *mp); + +/* TLB flush operations. */ + +extern void flush_tlb_pending(void); + +#define flush_tlb_range(vma,start,end) \ + do { (void)(start); flush_tlb_pending(); } while (0) +#define flush_tlb_page(vma,addr) flush_tlb_pending() +#define flush_tlb_mm(mm) flush_tlb_pending() + +/* Local cpu only. */ +extern void __flush_tlb_all(void); + +extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end); + +#ifndef CONFIG_SMP + +#define flush_tlb_kernel_range(start,end) \ +do { flush_tsb_kernel_range(start,end); \ + __flush_tlb_kernel_range(start,end); \ +} while (0) + +#else /* CONFIG_SMP */ + +extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end); + +#define flush_tlb_kernel_range(start, end) \ +do { flush_tsb_kernel_range(start,end); \ + smp_flush_tlb_kernel_range(start, end); \ +} while (0) + +#endif /* ! CONFIG_SMP */ + +#endif /* _SPARC64_TLBFLUSH_H */ diff --git a/include/asm-sparc/topology.h b/include/asm-sparc/topology.h index ee5ac9c9da28..ed13630f32e2 100644 --- a/include/asm-sparc/topology.h +++ b/include/asm-sparc/topology.h @@ -1,6 +1,8 @@ -#ifndef _ASM_SPARC_TOPOLOGY_H -#define _ASM_SPARC_TOPOLOGY_H - -#include - -#endif /* _ASM_SPARC_TOPOLOGY_H */ +#ifndef ___ASM_SPARC_TOPOLOGY_H +#define ___ASM_SPARC_TOPOLOGY_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/topology_32.h b/include/asm-sparc/topology_32.h new file mode 100644 index 000000000000..ee5ac9c9da28 --- /dev/null +++ b/include/asm-sparc/topology_32.h @@ -0,0 +1,6 @@ +#ifndef _ASM_SPARC_TOPOLOGY_H +#define _ASM_SPARC_TOPOLOGY_H + +#include + +#endif /* _ASM_SPARC_TOPOLOGY_H */ diff --git a/include/asm-sparc/topology_64.h b/include/asm-sparc/topology_64.h new file mode 100644 index 000000000000..001c04027c82 --- /dev/null +++ b/include/asm-sparc/topology_64.h @@ -0,0 +1,86 @@ +#ifndef _ASM_SPARC64_TOPOLOGY_H +#define _ASM_SPARC64_TOPOLOGY_H + +#ifdef CONFIG_NUMA + +#include + +static inline int cpu_to_node(int cpu) +{ + return numa_cpu_lookup_table[cpu]; +} + +#define parent_node(node) (node) + +static inline cpumask_t node_to_cpumask(int node) +{ + return numa_cpumask_lookup_table[node]; +} + +/* Returns a pointer to the cpumask of CPUs on Node 'node'. */ +#define node_to_cpumask_ptr(v, node) \ + cpumask_t *v = &(numa_cpumask_lookup_table[node]) + +#define node_to_cpumask_ptr_next(v, node) \ + v = &(numa_cpumask_lookup_table[node]) + +static inline int node_to_first_cpu(int node) +{ + cpumask_t tmp; + tmp = node_to_cpumask(node); + return first_cpu(tmp); +} + +struct pci_bus; +#ifdef CONFIG_PCI +extern int pcibus_to_node(struct pci_bus *pbus); +#else +static inline int pcibus_to_node(struct pci_bus *pbus) +{ + return -1; +} +#endif + +#define pcibus_to_cpumask(bus) \ + (pcibus_to_node(bus) == -1 ? \ + CPU_MASK_ALL : \ + node_to_cpumask(pcibus_to_node(bus))) + +#define SD_NODE_INIT (struct sched_domain) { \ + .min_interval = 8, \ + .max_interval = 32, \ + .busy_factor = 32, \ + .imbalance_pct = 125, \ + .cache_nice_tries = 2, \ + .busy_idx = 3, \ + .idle_idx = 2, \ + .newidle_idx = 0, \ + .wake_idx = 1, \ + .forkexec_idx = 1, \ + .flags = SD_LOAD_BALANCE \ + | SD_BALANCE_FORK \ + | SD_BALANCE_EXEC \ + | SD_SERIALIZE \ + | SD_WAKE_BALANCE, \ + .last_balance = jiffies, \ + .balance_interval = 1, \ +} + +#else /* CONFIG_NUMA */ + +#include + +#endif /* !(CONFIG_NUMA) */ + +#ifdef CONFIG_SMP +#define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id) +#define topology_core_id(cpu) (cpu_data(cpu).core_id) +#define topology_core_siblings(cpu) (cpu_core_map[cpu]) +#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) +#define mc_capable() (sparc64_multi_core) +#define smt_capable() (sparc64_multi_core) +#endif /* CONFIG_SMP */ + +#define cpu_coregroup_map(cpu) (cpu_core_map[cpu]) + +#endif /* _ASM_SPARC64_TOPOLOGY_H */ diff --git a/include/asm-sparc/uaccess.h b/include/asm-sparc/uaccess.h index 47d5619d43fa..424facce5238 100644 --- a/include/asm-sparc/uaccess.h +++ b/include/asm-sparc/uaccess.h @@ -1,336 +1,8 @@ -/* - * uaccess.h: User space memore access functions. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ -#ifndef _ASM_UACCESS_H -#define _ASM_UACCESS_H - -#ifdef __KERNEL__ -#include -#include -#include -#include -#include +#ifndef ___ASM_SPARC_UACCESS_H +#define ___ASM_SPARC_UACCESS_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif #endif - -#ifndef __ASSEMBLY__ - -/* Sparc is not segmented, however we need to be able to fool access_ok() - * when doing system calls from kernel mode legitimately. - * - * "For historical reasons, these macros are grossly misnamed." -Linus - */ - -#define KERNEL_DS ((mm_segment_t) { 0 }) -#define USER_DS ((mm_segment_t) { -1 }) - -#define VERIFY_READ 0 -#define VERIFY_WRITE 1 - -#define get_ds() (KERNEL_DS) -#define get_fs() (current->thread.current_ds) -#define set_fs(val) ((current->thread.current_ds) = (val)) - -#define segment_eq(a,b) ((a).seg == (b).seg) - -/* We have there a nice not-mapped page at PAGE_OFFSET - PAGE_SIZE, so that this test - * can be fairly lightweight. - * No one can read/write anything from userland in the kernel space by setting - * large size and address near to PAGE_OFFSET - a fault will break his intentions. - */ -#define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; }) -#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS)) -#define __access_ok(addr,size) (__user_ok((addr) & get_fs().seg,(size))) -#define access_ok(type, addr, size) \ - ({ (void)(type); __access_ok((unsigned long)(addr), size); }) - -/* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is - * the address at which the program should continue. No registers are - * modified, so it is entirely up to the continuation code to figure out - * what to do. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - * - * There is a special way how to put a range of potentially faulting - * insns (like twenty ldd/std's with now intervening other instructions) - * You specify address of first in insn and 0 in fixup and in the next - * exception_table_entry you specify last potentially faulting insn + 1 - * and in fixup the routine which should handle the fault. - * That fixup code will get - * (faulting_insn_address - first_insn_in_the_range_address)/4 - * in %g2 (ie. index of the faulting instruction in the range). - */ - -struct exception_table_entry -{ - unsigned long insn, fixup; -}; - -/* Returns 0 if exception not found and fixup otherwise. */ -extern unsigned long search_extables_range(unsigned long addr, unsigned long *g2); - -extern void __ret_efault(void); - -/* Uh, these should become the main single-value transfer routines.. - * They automatically use the right size if we just have the right - * pointer type.. - * - * This gets kind of ugly. We want to return _two_ values in "get_user()" - * and yet we don't want to do any pointers, because that is too much - * of a performance impact. Thus we have a few rather ugly macros here, - * and hide all the ugliness from the user. - */ -#define put_user(x,ptr) ({ \ -unsigned long __pu_addr = (unsigned long)(ptr); \ -__chk_user_ptr(ptr); \ -__put_user_check((__typeof__(*(ptr)))(x),__pu_addr,sizeof(*(ptr))); }) - -#define get_user(x,ptr) ({ \ -unsigned long __gu_addr = (unsigned long)(ptr); \ -__chk_user_ptr(ptr); \ -__get_user_check((x),__gu_addr,sizeof(*(ptr)),__typeof__(*(ptr))); }) - -/* - * The "__xxx" versions do not do address space checking, useful when - * doing multiple accesses to the same area (the user has to do the - * checks by hand with "access_ok()") - */ -#define __put_user(x,ptr) __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) -#define __get_user(x,ptr) __get_user_nocheck((x),(ptr),sizeof(*(ptr)),__typeof__(*(ptr))) - -struct __large_struct { unsigned long buf[100]; }; -#define __m(x) ((struct __large_struct __user *)(x)) - -#define __put_user_check(x,addr,size) ({ \ -register int __pu_ret; \ -if (__access_ok(addr,size)) { \ -switch (size) { \ -case 1: __put_user_asm(x,b,addr,__pu_ret); break; \ -case 2: __put_user_asm(x,h,addr,__pu_ret); break; \ -case 4: __put_user_asm(x,,addr,__pu_ret); break; \ -case 8: __put_user_asm(x,d,addr,__pu_ret); break; \ -default: __pu_ret = __put_user_bad(); break; \ -} } else { __pu_ret = -EFAULT; } __pu_ret; }) - -#define __put_user_nocheck(x,addr,size) ({ \ -register int __pu_ret; \ -switch (size) { \ -case 1: __put_user_asm(x,b,addr,__pu_ret); break; \ -case 2: __put_user_asm(x,h,addr,__pu_ret); break; \ -case 4: __put_user_asm(x,,addr,__pu_ret); break; \ -case 8: __put_user_asm(x,d,addr,__pu_ret); break; \ -default: __pu_ret = __put_user_bad(); break; \ -} __pu_ret; }) - -#define __put_user_asm(x,size,addr,ret) \ -__asm__ __volatile__( \ - "/* Put user asm, inline. */\n" \ -"1:\t" "st"#size " %1, %2\n\t" \ - "clr %0\n" \ -"2:\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ -"3:\n\t" \ - "b 2b\n\t" \ - " mov %3, %0\n\t" \ - ".previous\n\n\t" \ - ".section __ex_table,#alloc\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\t" \ - ".previous\n\n\t" \ - : "=&r" (ret) : "r" (x), "m" (*__m(addr)), \ - "i" (-EFAULT)) - -extern int __put_user_bad(void); - -#define __get_user_check(x,addr,size,type) ({ \ -register int __gu_ret; \ -register unsigned long __gu_val; \ -if (__access_ok(addr,size)) { \ -switch (size) { \ -case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ -case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ -case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ -case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ -default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ -} } else { __gu_val = 0; __gu_ret = -EFAULT; } x = (type) __gu_val; __gu_ret; }) - -#define __get_user_check_ret(x,addr,size,type,retval) ({ \ -register unsigned long __gu_val __asm__ ("l1"); \ -if (__access_ok(addr,size)) { \ -switch (size) { \ -case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ -case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ -case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ -case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ -default: if (__get_user_bad()) return retval; \ -} x = (type) __gu_val; } else return retval; }) - -#define __get_user_nocheck(x,addr,size,type) ({ \ -register int __gu_ret; \ -register unsigned long __gu_val; \ -switch (size) { \ -case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ -case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ -case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ -case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ -default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ -} x = (type) __gu_val; __gu_ret; }) - -#define __get_user_nocheck_ret(x,addr,size,type,retval) ({ \ -register unsigned long __gu_val __asm__ ("l1"); \ -switch (size) { \ -case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ -case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ -case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ -case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ -default: if (__get_user_bad()) return retval; \ -} x = (type) __gu_val; }) - -#define __get_user_asm(x,size,addr,ret) \ -__asm__ __volatile__( \ - "/* Get user asm, inline. */\n" \ -"1:\t" "ld"#size " %2, %1\n\t" \ - "clr %0\n" \ -"2:\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ -"3:\n\t" \ - "clr %1\n\t" \ - "b 2b\n\t" \ - " mov %3, %0\n\n\t" \ - ".previous\n\t" \ - ".section __ex_table,#alloc\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\n\t" \ - ".previous\n\t" \ - : "=&r" (ret), "=&r" (x) : "m" (*__m(addr)), \ - "i" (-EFAULT)) - -#define __get_user_asm_ret(x,size,addr,retval) \ -if (__builtin_constant_p(retval) && retval == -EFAULT) \ -__asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ -"1:\t" "ld"#size " %1, %0\n\n\t" \ - ".section __ex_table,#alloc\n\t" \ - ".align 4\n\t" \ - ".word 1b,__ret_efault\n\n\t" \ - ".previous\n\t" \ - : "=&r" (x) : "m" (*__m(addr))); \ -else \ -__asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ -"1:\t" "ld"#size " %1, %0\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ -"3:\n\t" \ - "ret\n\t" \ - " restore %%g0, %2, %%o0\n\n\t" \ - ".previous\n\t" \ - ".section __ex_table,#alloc\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\n\t" \ - ".previous\n\t" \ - : "=&r" (x) : "m" (*__m(addr)), "i" (retval)) - -extern int __get_user_bad(void); - -extern unsigned long __copy_user(void __user *to, const void __user *from, unsigned long size); - -static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) -{ - if (n && __access_ok((unsigned long) to, n)) - return __copy_user(to, (__force void __user *) from, n); - else - return n; -} - -static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n) -{ - return __copy_user(to, (__force void __user *) from, n); -} - -static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) -{ - if (n && __access_ok((unsigned long) from, n)) - return __copy_user((__force void __user *) to, from, n); - else - return n; -} - -static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) -{ - return __copy_user((__force void __user *) to, from, n); -} - -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user - -static inline unsigned long __clear_user(void __user *addr, unsigned long size) -{ - unsigned long ret; - - __asm__ __volatile__ ( - ".section __ex_table,#alloc\n\t" - ".align 4\n\t" - ".word 1f,3\n\t" - ".previous\n\t" - "mov %2, %%o1\n" - "1:\n\t" - "call __bzero\n\t" - " mov %1, %%o0\n\t" - "mov %%o0, %0\n" - : "=r" (ret) : "r" (addr), "r" (size) : - "o0", "o1", "o2", "o3", "o4", "o5", "o7", - "g1", "g2", "g3", "g4", "g5", "g7", "cc"); - - return ret; -} - -static inline unsigned long clear_user(void __user *addr, unsigned long n) -{ - if (n && __access_ok((unsigned long) addr, n)) - return __clear_user(addr, n); - else - return n; -} - -extern long __strncpy_from_user(char *dest, const char __user *src, long count); - -static inline long strncpy_from_user(char *dest, const char __user *src, long count) -{ - if (__access_ok((unsigned long) src, count)) - return __strncpy_from_user(dest, src, count); - else - return -EFAULT; -} - -extern long __strlen_user(const char __user *); -extern long __strnlen_user(const char __user *, long len); - -static inline long strlen_user(const char __user *str) -{ - if (!access_ok(VERIFY_READ, str, 0)) - return 0; - else - return __strlen_user(str); -} - -static inline long strnlen_user(const char __user *str, long len) -{ - if (!access_ok(VERIFY_READ, str, 0)) - return 0; - else - return __strnlen_user(str, len); -} - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_UACCESS_H */ diff --git a/include/asm-sparc/uaccess_32.h b/include/asm-sparc/uaccess_32.h new file mode 100644 index 000000000000..47d5619d43fa --- /dev/null +++ b/include/asm-sparc/uaccess_32.h @@ -0,0 +1,336 @@ +/* + * uaccess.h: User space memore access functions. + * + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ +#ifndef _ASM_UACCESS_H +#define _ASM_UACCESS_H + +#ifdef __KERNEL__ +#include +#include +#include +#include +#include +#endif + +#ifndef __ASSEMBLY__ + +/* Sparc is not segmented, however we need to be able to fool access_ok() + * when doing system calls from kernel mode legitimately. + * + * "For historical reasons, these macros are grossly misnamed." -Linus + */ + +#define KERNEL_DS ((mm_segment_t) { 0 }) +#define USER_DS ((mm_segment_t) { -1 }) + +#define VERIFY_READ 0 +#define VERIFY_WRITE 1 + +#define get_ds() (KERNEL_DS) +#define get_fs() (current->thread.current_ds) +#define set_fs(val) ((current->thread.current_ds) = (val)) + +#define segment_eq(a,b) ((a).seg == (b).seg) + +/* We have there a nice not-mapped page at PAGE_OFFSET - PAGE_SIZE, so that this test + * can be fairly lightweight. + * No one can read/write anything from userland in the kernel space by setting + * large size and address near to PAGE_OFFSET - a fault will break his intentions. + */ +#define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; }) +#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS)) +#define __access_ok(addr,size) (__user_ok((addr) & get_fs().seg,(size))) +#define access_ok(type, addr, size) \ + ({ (void)(type); __access_ok((unsigned long)(addr), size); }) + +/* + * The exception table consists of pairs of addresses: the first is the + * address of an instruction that is allowed to fault, and the second is + * the address at which the program should continue. No registers are + * modified, so it is entirely up to the continuation code to figure out + * what to do. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + * + * There is a special way how to put a range of potentially faulting + * insns (like twenty ldd/std's with now intervening other instructions) + * You specify address of first in insn and 0 in fixup and in the next + * exception_table_entry you specify last potentially faulting insn + 1 + * and in fixup the routine which should handle the fault. + * That fixup code will get + * (faulting_insn_address - first_insn_in_the_range_address)/4 + * in %g2 (ie. index of the faulting instruction in the range). + */ + +struct exception_table_entry +{ + unsigned long insn, fixup; +}; + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_extables_range(unsigned long addr, unsigned long *g2); + +extern void __ret_efault(void); + +/* Uh, these should become the main single-value transfer routines.. + * They automatically use the right size if we just have the right + * pointer type.. + * + * This gets kind of ugly. We want to return _two_ values in "get_user()" + * and yet we don't want to do any pointers, because that is too much + * of a performance impact. Thus we have a few rather ugly macros here, + * and hide all the ugliness from the user. + */ +#define put_user(x,ptr) ({ \ +unsigned long __pu_addr = (unsigned long)(ptr); \ +__chk_user_ptr(ptr); \ +__put_user_check((__typeof__(*(ptr)))(x),__pu_addr,sizeof(*(ptr))); }) + +#define get_user(x,ptr) ({ \ +unsigned long __gu_addr = (unsigned long)(ptr); \ +__chk_user_ptr(ptr); \ +__get_user_check((x),__gu_addr,sizeof(*(ptr)),__typeof__(*(ptr))); }) + +/* + * The "__xxx" versions do not do address space checking, useful when + * doing multiple accesses to the same area (the user has to do the + * checks by hand with "access_ok()") + */ +#define __put_user(x,ptr) __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) +#define __get_user(x,ptr) __get_user_nocheck((x),(ptr),sizeof(*(ptr)),__typeof__(*(ptr))) + +struct __large_struct { unsigned long buf[100]; }; +#define __m(x) ((struct __large_struct __user *)(x)) + +#define __put_user_check(x,addr,size) ({ \ +register int __pu_ret; \ +if (__access_ok(addr,size)) { \ +switch (size) { \ +case 1: __put_user_asm(x,b,addr,__pu_ret); break; \ +case 2: __put_user_asm(x,h,addr,__pu_ret); break; \ +case 4: __put_user_asm(x,,addr,__pu_ret); break; \ +case 8: __put_user_asm(x,d,addr,__pu_ret); break; \ +default: __pu_ret = __put_user_bad(); break; \ +} } else { __pu_ret = -EFAULT; } __pu_ret; }) + +#define __put_user_nocheck(x,addr,size) ({ \ +register int __pu_ret; \ +switch (size) { \ +case 1: __put_user_asm(x,b,addr,__pu_ret); break; \ +case 2: __put_user_asm(x,h,addr,__pu_ret); break; \ +case 4: __put_user_asm(x,,addr,__pu_ret); break; \ +case 8: __put_user_asm(x,d,addr,__pu_ret); break; \ +default: __pu_ret = __put_user_bad(); break; \ +} __pu_ret; }) + +#define __put_user_asm(x,size,addr,ret) \ +__asm__ __volatile__( \ + "/* Put user asm, inline. */\n" \ +"1:\t" "st"#size " %1, %2\n\t" \ + "clr %0\n" \ +"2:\n\n\t" \ + ".section .fixup,#alloc,#execinstr\n\t" \ + ".align 4\n" \ +"3:\n\t" \ + "b 2b\n\t" \ + " mov %3, %0\n\t" \ + ".previous\n\n\t" \ + ".section __ex_table,#alloc\n\t" \ + ".align 4\n\t" \ + ".word 1b, 3b\n\t" \ + ".previous\n\n\t" \ + : "=&r" (ret) : "r" (x), "m" (*__m(addr)), \ + "i" (-EFAULT)) + +extern int __put_user_bad(void); + +#define __get_user_check(x,addr,size,type) ({ \ +register int __gu_ret; \ +register unsigned long __gu_val; \ +if (__access_ok(addr,size)) { \ +switch (size) { \ +case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ +case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ +case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ +case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ +default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ +} } else { __gu_val = 0; __gu_ret = -EFAULT; } x = (type) __gu_val; __gu_ret; }) + +#define __get_user_check_ret(x,addr,size,type,retval) ({ \ +register unsigned long __gu_val __asm__ ("l1"); \ +if (__access_ok(addr,size)) { \ +switch (size) { \ +case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ +case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ +case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ +case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ +default: if (__get_user_bad()) return retval; \ +} x = (type) __gu_val; } else return retval; }) + +#define __get_user_nocheck(x,addr,size,type) ({ \ +register int __gu_ret; \ +register unsigned long __gu_val; \ +switch (size) { \ +case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ +case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ +case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ +case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ +default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ +} x = (type) __gu_val; __gu_ret; }) + +#define __get_user_nocheck_ret(x,addr,size,type,retval) ({ \ +register unsigned long __gu_val __asm__ ("l1"); \ +switch (size) { \ +case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ +case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ +case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ +case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ +default: if (__get_user_bad()) return retval; \ +} x = (type) __gu_val; }) + +#define __get_user_asm(x,size,addr,ret) \ +__asm__ __volatile__( \ + "/* Get user asm, inline. */\n" \ +"1:\t" "ld"#size " %2, %1\n\t" \ + "clr %0\n" \ +"2:\n\n\t" \ + ".section .fixup,#alloc,#execinstr\n\t" \ + ".align 4\n" \ +"3:\n\t" \ + "clr %1\n\t" \ + "b 2b\n\t" \ + " mov %3, %0\n\n\t" \ + ".previous\n\t" \ + ".section __ex_table,#alloc\n\t" \ + ".align 4\n\t" \ + ".word 1b, 3b\n\n\t" \ + ".previous\n\t" \ + : "=&r" (ret), "=&r" (x) : "m" (*__m(addr)), \ + "i" (-EFAULT)) + +#define __get_user_asm_ret(x,size,addr,retval) \ +if (__builtin_constant_p(retval) && retval == -EFAULT) \ +__asm__ __volatile__( \ + "/* Get user asm ret, inline. */\n" \ +"1:\t" "ld"#size " %1, %0\n\n\t" \ + ".section __ex_table,#alloc\n\t" \ + ".align 4\n\t" \ + ".word 1b,__ret_efault\n\n\t" \ + ".previous\n\t" \ + : "=&r" (x) : "m" (*__m(addr))); \ +else \ +__asm__ __volatile__( \ + "/* Get user asm ret, inline. */\n" \ +"1:\t" "ld"#size " %1, %0\n\n\t" \ + ".section .fixup,#alloc,#execinstr\n\t" \ + ".align 4\n" \ +"3:\n\t" \ + "ret\n\t" \ + " restore %%g0, %2, %%o0\n\n\t" \ + ".previous\n\t" \ + ".section __ex_table,#alloc\n\t" \ + ".align 4\n\t" \ + ".word 1b, 3b\n\n\t" \ + ".previous\n\t" \ + : "=&r" (x) : "m" (*__m(addr)), "i" (retval)) + +extern int __get_user_bad(void); + +extern unsigned long __copy_user(void __user *to, const void __user *from, unsigned long size); + +static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) +{ + if (n && __access_ok((unsigned long) to, n)) + return __copy_user(to, (__force void __user *) from, n); + else + return n; +} + +static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n) +{ + return __copy_user(to, (__force void __user *) from, n); +} + +static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) +{ + if (n && __access_ok((unsigned long) from, n)) + return __copy_user((__force void __user *) to, from, n); + else + return n; +} + +static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) +{ + return __copy_user((__force void __user *) to, from, n); +} + +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user + +static inline unsigned long __clear_user(void __user *addr, unsigned long size) +{ + unsigned long ret; + + __asm__ __volatile__ ( + ".section __ex_table,#alloc\n\t" + ".align 4\n\t" + ".word 1f,3\n\t" + ".previous\n\t" + "mov %2, %%o1\n" + "1:\n\t" + "call __bzero\n\t" + " mov %1, %%o0\n\t" + "mov %%o0, %0\n" + : "=r" (ret) : "r" (addr), "r" (size) : + "o0", "o1", "o2", "o3", "o4", "o5", "o7", + "g1", "g2", "g3", "g4", "g5", "g7", "cc"); + + return ret; +} + +static inline unsigned long clear_user(void __user *addr, unsigned long n) +{ + if (n && __access_ok((unsigned long) addr, n)) + return __clear_user(addr, n); + else + return n; +} + +extern long __strncpy_from_user(char *dest, const char __user *src, long count); + +static inline long strncpy_from_user(char *dest, const char __user *src, long count) +{ + if (__access_ok((unsigned long) src, count)) + return __strncpy_from_user(dest, src, count); + else + return -EFAULT; +} + +extern long __strlen_user(const char __user *); +extern long __strnlen_user(const char __user *, long len); + +static inline long strlen_user(const char __user *str) +{ + if (!access_ok(VERIFY_READ, str, 0)) + return 0; + else + return __strlen_user(str); +} + +static inline long strnlen_user(const char __user *str, long len) +{ + if (!access_ok(VERIFY_READ, str, 0)) + return 0; + else + return __strnlen_user(str, len); +} + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_UACCESS_H */ diff --git a/include/asm-sparc/uaccess_64.h b/include/asm-sparc/uaccess_64.h new file mode 100644 index 000000000000..296ef30e05c8 --- /dev/null +++ b/include/asm-sparc/uaccess_64.h @@ -0,0 +1,273 @@ +#ifndef _ASM_UACCESS_H +#define _ASM_UACCESS_H + +/* + * User space memory access functions + */ + +#ifdef __KERNEL__ +#include +#include +#include +#include +#include +#include +#include +#endif + +#ifndef __ASSEMBLY__ + +/* + * Sparc64 is segmented, though more like the M68K than the I386. + * We use the secondary ASI to address user memory, which references a + * completely different VM map, thus there is zero chance of the user + * doing something queer and tricking us into poking kernel memory. + * + * What is left here is basically what is needed for the other parts of + * the kernel that expect to be able to manipulate, erum, "segments". + * Or perhaps more properly, permissions. + * + * "For historical reasons, these macros are grossly misnamed." -Linus + */ + +#define KERNEL_DS ((mm_segment_t) { ASI_P }) +#define USER_DS ((mm_segment_t) { ASI_AIUS }) /* har har har */ + +#define VERIFY_READ 0 +#define VERIFY_WRITE 1 + +#define get_fs() ((mm_segment_t) { get_thread_current_ds() }) +#define get_ds() (KERNEL_DS) + +#define segment_eq(a,b) ((a).seg == (b).seg) + +#define set_fs(val) \ +do { \ + set_thread_current_ds((val).seg); \ + __asm__ __volatile__ ("wr %%g0, %0, %%asi" : : "r" ((val).seg)); \ +} while(0) + +static inline int __access_ok(const void __user * addr, unsigned long size) +{ + return 1; +} + +static inline int access_ok(int type, const void __user * addr, unsigned long size) +{ + return 1; +} + +/* + * The exception table consists of pairs of addresses: the first is the + * address of an instruction that is allowed to fault, and the second is + * the address at which the program should continue. No registers are + * modified, so it is entirely up to the continuation code to figure out + * what to do. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + */ + +struct exception_table_entry { + unsigned int insn, fixup; +}; + +extern void __ret_efault(void); +extern void __retl_efault(void); + +/* Uh, these should become the main single-value transfer routines.. + * They automatically use the right size if we just have the right + * pointer type.. + * + * This gets kind of ugly. We want to return _two_ values in "get_user()" + * and yet we don't want to do any pointers, because that is too much + * of a performance impact. Thus we have a few rather ugly macros here, + * and hide all the ugliness from the user. + */ +#define put_user(x,ptr) ({ \ +unsigned long __pu_addr = (unsigned long)(ptr); \ +__chk_user_ptr(ptr); \ +__put_user_nocheck((__typeof__(*(ptr)))(x),__pu_addr,sizeof(*(ptr))); }) + +#define get_user(x,ptr) ({ \ +unsigned long __gu_addr = (unsigned long)(ptr); \ +__chk_user_ptr(ptr); \ +__get_user_nocheck((x),__gu_addr,sizeof(*(ptr)),__typeof__(*(ptr))); }) + +#define __put_user(x,ptr) put_user(x,ptr) +#define __get_user(x,ptr) get_user(x,ptr) + +struct __large_struct { unsigned long buf[100]; }; +#define __m(x) ((struct __large_struct *)(x)) + +#define __put_user_nocheck(data,addr,size) ({ \ +register int __pu_ret; \ +switch (size) { \ +case 1: __put_user_asm(data,b,addr,__pu_ret); break; \ +case 2: __put_user_asm(data,h,addr,__pu_ret); break; \ +case 4: __put_user_asm(data,w,addr,__pu_ret); break; \ +case 8: __put_user_asm(data,x,addr,__pu_ret); break; \ +default: __pu_ret = __put_user_bad(); break; \ +} __pu_ret; }) + +#define __put_user_asm(x,size,addr,ret) \ +__asm__ __volatile__( \ + "/* Put user asm, inline. */\n" \ +"1:\t" "st"#size "a %1, [%2] %%asi\n\t" \ + "clr %0\n" \ +"2:\n\n\t" \ + ".section .fixup,#alloc,#execinstr\n\t" \ + ".align 4\n" \ +"3:\n\t" \ + "sethi %%hi(2b), %0\n\t" \ + "jmpl %0 + %%lo(2b), %%g0\n\t" \ + " mov %3, %0\n\n\t" \ + ".previous\n\t" \ + ".section __ex_table,\"a\"\n\t" \ + ".align 4\n\t" \ + ".word 1b, 3b\n\t" \ + ".previous\n\n\t" \ + : "=r" (ret) : "r" (x), "r" (__m(addr)), \ + "i" (-EFAULT)) + +extern int __put_user_bad(void); + +#define __get_user_nocheck(data,addr,size,type) ({ \ +register int __gu_ret; \ +register unsigned long __gu_val; \ +switch (size) { \ +case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ +case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ +case 4: __get_user_asm(__gu_val,uw,addr,__gu_ret); break; \ +case 8: __get_user_asm(__gu_val,x,addr,__gu_ret); break; \ +default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ +} data = (type) __gu_val; __gu_ret; }) + +#define __get_user_nocheck_ret(data,addr,size,type,retval) ({ \ +register unsigned long __gu_val __asm__ ("l1"); \ +switch (size) { \ +case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ +case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ +case 4: __get_user_asm_ret(__gu_val,uw,addr,retval); break; \ +case 8: __get_user_asm_ret(__gu_val,x,addr,retval); break; \ +default: if (__get_user_bad()) return retval; \ +} data = (type) __gu_val; }) + +#define __get_user_asm(x,size,addr,ret) \ +__asm__ __volatile__( \ + "/* Get user asm, inline. */\n" \ +"1:\t" "ld"#size "a [%2] %%asi, %1\n\t" \ + "clr %0\n" \ +"2:\n\n\t" \ + ".section .fixup,#alloc,#execinstr\n\t" \ + ".align 4\n" \ +"3:\n\t" \ + "sethi %%hi(2b), %0\n\t" \ + "clr %1\n\t" \ + "jmpl %0 + %%lo(2b), %%g0\n\t" \ + " mov %3, %0\n\n\t" \ + ".previous\n\t" \ + ".section __ex_table,\"a\"\n\t" \ + ".align 4\n\t" \ + ".word 1b, 3b\n\n\t" \ + ".previous\n\t" \ + : "=r" (ret), "=r" (x) : "r" (__m(addr)), \ + "i" (-EFAULT)) + +#define __get_user_asm_ret(x,size,addr,retval) \ +if (__builtin_constant_p(retval) && retval == -EFAULT) \ +__asm__ __volatile__( \ + "/* Get user asm ret, inline. */\n" \ +"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ + ".section __ex_table,\"a\"\n\t" \ + ".align 4\n\t" \ + ".word 1b,__ret_efault\n\n\t" \ + ".previous\n\t" \ + : "=r" (x) : "r" (__m(addr))); \ +else \ +__asm__ __volatile__( \ + "/* Get user asm ret, inline. */\n" \ +"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ + ".section .fixup,#alloc,#execinstr\n\t" \ + ".align 4\n" \ +"3:\n\t" \ + "ret\n\t" \ + " restore %%g0, %2, %%o0\n\n\t" \ + ".previous\n\t" \ + ".section __ex_table,\"a\"\n\t" \ + ".align 4\n\t" \ + ".word 1b, 3b\n\n\t" \ + ".previous\n\t" \ + : "=r" (x) : "r" (__m(addr)), "i" (retval)) + +extern int __get_user_bad(void); + +extern unsigned long __must_check ___copy_from_user(void *to, + const void __user *from, + unsigned long size); +extern unsigned long copy_from_user_fixup(void *to, const void __user *from, + unsigned long size); +static inline unsigned long __must_check +copy_from_user(void *to, const void __user *from, unsigned long size) +{ + unsigned long ret = ___copy_from_user(to, from, size); + + if (unlikely(ret)) + ret = copy_from_user_fixup(to, from, size); + return ret; +} +#define __copy_from_user copy_from_user + +extern unsigned long __must_check ___copy_to_user(void __user *to, + const void *from, + unsigned long size); +extern unsigned long copy_to_user_fixup(void __user *to, const void *from, + unsigned long size); +static inline unsigned long __must_check +copy_to_user(void __user *to, const void *from, unsigned long size) +{ + unsigned long ret = ___copy_to_user(to, from, size); + + if (unlikely(ret)) + ret = copy_to_user_fixup(to, from, size); + return ret; +} +#define __copy_to_user copy_to_user + +extern unsigned long __must_check ___copy_in_user(void __user *to, + const void __user *from, + unsigned long size); +extern unsigned long copy_in_user_fixup(void __user *to, void __user *from, + unsigned long size); +static inline unsigned long __must_check +copy_in_user(void __user *to, void __user *from, unsigned long size) +{ + unsigned long ret = ___copy_in_user(to, from, size); + + if (unlikely(ret)) + ret = copy_in_user_fixup(to, from, size); + return ret; +} +#define __copy_in_user copy_in_user + +extern unsigned long __must_check __clear_user(void __user *, unsigned long); + +#define clear_user __clear_user + +extern long __must_check __strncpy_from_user(char *dest, const char __user *src, long count); + +#define strncpy_from_user __strncpy_from_user + +extern long __strlen_user(const char __user *); +extern long __strnlen_user(const char __user *, long len); + +#define strlen_user __strlen_user +#define strnlen_user __strnlen_user +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_UACCESS_H */ diff --git a/include/asm-sparc/unistd.h b/include/asm-sparc/unistd.h index 2338a0276377..3c2609618a09 100644 --- a/include/asm-sparc/unistd.h +++ b/include/asm-sparc/unistd.h @@ -1,378 +1,8 @@ -#ifndef _SPARC_UNISTD_H -#define _SPARC_UNISTD_H - -/* - * System calls under the Sparc. - * - * Don't be scared by the ugly clobbers, it is the only way I can - * think of right now to force the arguments into fixed registers - * before the trap into the system call with gcc 'asm' statements. - * - * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) - * - * SunOS compatibility based upon preliminary work which is: - * - * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) - */ - -#define __NR_restart_syscall 0 /* Linux Specific */ -#define __NR_exit 1 /* Common */ -#define __NR_fork 2 /* Common */ -#define __NR_read 3 /* Common */ -#define __NR_write 4 /* Common */ -#define __NR_open 5 /* Common */ -#define __NR_close 6 /* Common */ -#define __NR_wait4 7 /* Common */ -#define __NR_creat 8 /* Common */ -#define __NR_link 9 /* Common */ -#define __NR_unlink 10 /* Common */ -#define __NR_execv 11 /* SunOS Specific */ -#define __NR_chdir 12 /* Common */ -#define __NR_chown 13 /* Common */ -#define __NR_mknod 14 /* Common */ -#define __NR_chmod 15 /* Common */ -#define __NR_lchown 16 /* Common */ -#define __NR_brk 17 /* Common */ -#define __NR_perfctr 18 /* Performance counter operations */ -#define __NR_lseek 19 /* Common */ -#define __NR_getpid 20 /* Common */ -#define __NR_capget 21 /* Linux Specific */ -#define __NR_capset 22 /* Linux Specific */ -#define __NR_setuid 23 /* Implemented via setreuid in SunOS */ -#define __NR_getuid 24 /* Common */ -#define __NR_vmsplice 25 /* ENOSYS under SunOS */ -#define __NR_ptrace 26 /* Common */ -#define __NR_alarm 27 /* Implemented via setitimer in SunOS */ -#define __NR_sigaltstack 28 /* Common */ -#define __NR_pause 29 /* Is sigblock(0)->sigpause() in SunOS */ -#define __NR_utime 30 /* Implemented via utimes() under SunOS */ -#define __NR_lchown32 31 /* Linux sparc32 specific */ -#define __NR_fchown32 32 /* Linux sparc32 specific */ -#define __NR_access 33 /* Common */ -#define __NR_nice 34 /* Implemented via get/setpriority() in SunOS */ -#define __NR_chown32 35 /* Linux sparc32 specific */ -#define __NR_sync 36 /* Common */ -#define __NR_kill 37 /* Common */ -#define __NR_stat 38 /* Common */ -#define __NR_sendfile 39 /* Linux Specific */ -#define __NR_lstat 40 /* Common */ -#define __NR_dup 41 /* Common */ -#define __NR_pipe 42 /* Common */ -#define __NR_times 43 /* Implemented via getrusage() in SunOS */ -#define __NR_getuid32 44 /* Linux sparc32 specific */ -#define __NR_umount2 45 /* Linux Specific */ -#define __NR_setgid 46 /* Implemented via setregid() in SunOS */ -#define __NR_getgid 47 /* Common */ -#define __NR_signal 48 /* Implemented via sigvec() in SunOS */ -#define __NR_geteuid 49 /* SunOS calls getuid() */ -#define __NR_getegid 50 /* SunOS calls getgid() */ -#define __NR_acct 51 /* Common */ -/* #define __NR_memory_ordering 52 Linux sparc64 specific */ -#define __NR_getgid32 53 /* Linux sparc32 specific */ -#define __NR_ioctl 54 /* Common */ -#define __NR_reboot 55 /* Common */ -#define __NR_mmap2 56 /* Linux sparc32 Specific */ -#define __NR_symlink 57 /* Common */ -#define __NR_readlink 58 /* Common */ -#define __NR_execve 59 /* Common */ -#define __NR_umask 60 /* Common */ -#define __NR_chroot 61 /* Common */ -#define __NR_fstat 62 /* Common */ -#define __NR_fstat64 63 /* Linux Specific */ -#define __NR_getpagesize 64 /* Common */ -#define __NR_msync 65 /* Common in newer 1.3.x revs... */ -#define __NR_vfork 66 /* Common */ -#define __NR_pread64 67 /* Linux Specific */ -#define __NR_pwrite64 68 /* Linux Specific */ -#define __NR_geteuid32 69 /* Linux sparc32, sbrk under SunOS */ -#define __NR_getegid32 70 /* Linux sparc32, sstk under SunOS */ -#define __NR_mmap 71 /* Common */ -#define __NR_setreuid32 72 /* Linux sparc32, vadvise under SunOS */ -#define __NR_munmap 73 /* Common */ -#define __NR_mprotect 74 /* Common */ -#define __NR_madvise 75 /* Common */ -#define __NR_vhangup 76 /* Common */ -#define __NR_truncate64 77 /* Linux sparc32 Specific */ -#define __NR_mincore 78 /* Common */ -#define __NR_getgroups 79 /* Common */ -#define __NR_setgroups 80 /* Common */ -#define __NR_getpgrp 81 /* Common */ -#define __NR_setgroups32 82 /* Linux sparc32, setpgrp under SunOS */ -#define __NR_setitimer 83 /* Common */ -#define __NR_ftruncate64 84 /* Linux sparc32 Specific */ -#define __NR_swapon 85 /* Common */ -#define __NR_getitimer 86 /* Common */ -#define __NR_setuid32 87 /* Linux sparc32, gethostname under SunOS */ -#define __NR_sethostname 88 /* Common */ -#define __NR_setgid32 89 /* Linux sparc32, getdtablesize under SunOS */ -#define __NR_dup2 90 /* Common */ -#define __NR_setfsuid32 91 /* Linux sparc32, getdopt under SunOS */ -#define __NR_fcntl 92 /* Common */ -#define __NR_select 93 /* Common */ -#define __NR_setfsgid32 94 /* Linux sparc32, setdopt under SunOS */ -#define __NR_fsync 95 /* Common */ -#define __NR_setpriority 96 /* Common */ -#define __NR_socket 97 /* Common */ -#define __NR_connect 98 /* Common */ -#define __NR_accept 99 /* Common */ -#define __NR_getpriority 100 /* Common */ -#define __NR_rt_sigreturn 101 /* Linux Specific */ -#define __NR_rt_sigaction 102 /* Linux Specific */ -#define __NR_rt_sigprocmask 103 /* Linux Specific */ -#define __NR_rt_sigpending 104 /* Linux Specific */ -#define __NR_rt_sigtimedwait 105 /* Linux Specific */ -#define __NR_rt_sigqueueinfo 106 /* Linux Specific */ -#define __NR_rt_sigsuspend 107 /* Linux Specific */ -#define __NR_setresuid32 108 /* Linux Specific, sigvec under SunOS */ -#define __NR_getresuid32 109 /* Linux Specific, sigblock under SunOS */ -#define __NR_setresgid32 110 /* Linux Specific, sigsetmask under SunOS */ -#define __NR_getresgid32 111 /* Linux Specific, sigpause under SunOS */ -#define __NR_setregid32 112 /* Linux sparc32, sigstack under SunOS */ -#define __NR_recvmsg 113 /* Common */ -#define __NR_sendmsg 114 /* Common */ -#define __NR_getgroups32 115 /* Linux sparc32, vtrace under SunOS */ -#define __NR_gettimeofday 116 /* Common */ -#define __NR_getrusage 117 /* Common */ -#define __NR_getsockopt 118 /* Common */ -#define __NR_getcwd 119 /* Linux Specific */ -#define __NR_readv 120 /* Common */ -#define __NR_writev 121 /* Common */ -#define __NR_settimeofday 122 /* Common */ -#define __NR_fchown 123 /* Common */ -#define __NR_fchmod 124 /* Common */ -#define __NR_recvfrom 125 /* Common */ -#define __NR_setreuid 126 /* Common */ -#define __NR_setregid 127 /* Common */ -#define __NR_rename 128 /* Common */ -#define __NR_truncate 129 /* Common */ -#define __NR_ftruncate 130 /* Common */ -#define __NR_flock 131 /* Common */ -#define __NR_lstat64 132 /* Linux Specific */ -#define __NR_sendto 133 /* Common */ -#define __NR_shutdown 134 /* Common */ -#define __NR_socketpair 135 /* Common */ -#define __NR_mkdir 136 /* Common */ -#define __NR_rmdir 137 /* Common */ -#define __NR_utimes 138 /* SunOS Specific */ -#define __NR_stat64 139 /* Linux Specific */ -#define __NR_sendfile64 140 /* adjtime under SunOS */ -#define __NR_getpeername 141 /* Common */ -#define __NR_futex 142 /* gethostid under SunOS */ -#define __NR_gettid 143 /* ENOSYS under SunOS */ -#define __NR_getrlimit 144 /* Common */ -#define __NR_setrlimit 145 /* Common */ -#define __NR_pivot_root 146 /* Linux Specific, killpg under SunOS */ -#define __NR_prctl 147 /* ENOSYS under SunOS */ -#define __NR_pciconfig_read 148 /* ENOSYS under SunOS */ -#define __NR_pciconfig_write 149 /* ENOSYS under SunOS */ -#define __NR_getsockname 150 /* Common */ -#define __NR_inotify_init 151 /* Linux specific */ -#define __NR_inotify_add_watch 152 /* Linux specific */ -#define __NR_poll 153 /* Common */ -#define __NR_getdents64 154 /* Linux specific */ -#define __NR_fcntl64 155 /* Linux sparc32 Specific */ -#define __NR_inotify_rm_watch 156 /* Linux specific */ -#define __NR_statfs 157 /* Common */ -#define __NR_fstatfs 158 /* Common */ -#define __NR_umount 159 /* Common */ -#define __NR_sched_set_affinity 160 /* Linux specific, async_daemon under SunOS */ -#define __NR_sched_get_affinity 161 /* Linux specific, getfh under SunOS */ -#define __NR_getdomainname 162 /* SunOS Specific */ -#define __NR_setdomainname 163 /* Common */ -/* #define __NR_utrap_install 164 Linux sparc64 specific */ -#define __NR_quotactl 165 /* Common */ -#define __NR_set_tid_address 166 /* Linux specific, exportfs under SunOS */ -#define __NR_mount 167 /* Common */ -#define __NR_ustat 168 /* Common */ -#define __NR_setxattr 169 /* SunOS: semsys */ -#define __NR_lsetxattr 170 /* SunOS: msgsys */ -#define __NR_fsetxattr 171 /* SunOS: shmsys */ -#define __NR_getxattr 172 /* SunOS: auditsys */ -#define __NR_lgetxattr 173 /* SunOS: rfssys */ -#define __NR_getdents 174 /* Common */ -#define __NR_setsid 175 /* Common */ -#define __NR_fchdir 176 /* Common */ -#define __NR_fgetxattr 177 /* SunOS: fchroot */ -#define __NR_listxattr 178 /* SunOS: vpixsys */ -#define __NR_llistxattr 179 /* SunOS: aioread */ -#define __NR_flistxattr 180 /* SunOS: aiowrite */ -#define __NR_removexattr 181 /* SunOS: aiowait */ -#define __NR_lremovexattr 182 /* SunOS: aiocancel */ -#define __NR_sigpending 183 /* Common */ -#define __NR_query_module 184 /* Linux Specific */ -#define __NR_setpgid 185 /* Common */ -#define __NR_fremovexattr 186 /* SunOS: pathconf */ -#define __NR_tkill 187 /* SunOS: fpathconf */ -#define __NR_exit_group 188 /* Linux specific, sysconf undef SunOS */ -#define __NR_uname 189 /* Linux Specific */ -#define __NR_init_module 190 /* Linux Specific */ -#define __NR_personality 191 /* Linux Specific */ -#define __NR_remap_file_pages 192 /* Linux Specific */ -#define __NR_epoll_create 193 /* Linux Specific */ -#define __NR_epoll_ctl 194 /* Linux Specific */ -#define __NR_epoll_wait 195 /* Linux Specific */ -#define __NR_ioprio_set 196 /* Linux Specific */ -#define __NR_getppid 197 /* Linux Specific */ -#define __NR_sigaction 198 /* Linux Specific */ -#define __NR_sgetmask 199 /* Linux Specific */ -#define __NR_ssetmask 200 /* Linux Specific */ -#define __NR_sigsuspend 201 /* Linux Specific */ -#define __NR_oldlstat 202 /* Linux Specific */ -#define __NR_uselib 203 /* Linux Specific */ -#define __NR_readdir 204 /* Linux Specific */ -#define __NR_readahead 205 /* Linux Specific */ -#define __NR_socketcall 206 /* Linux Specific */ -#define __NR_syslog 207 /* Linux Specific */ -#define __NR_lookup_dcookie 208 /* Linux Specific */ -#define __NR_fadvise64 209 /* Linux Specific */ -#define __NR_fadvise64_64 210 /* Linux Specific */ -#define __NR_tgkill 211 /* Linux Specific */ -#define __NR_waitpid 212 /* Linux Specific */ -#define __NR_swapoff 213 /* Linux Specific */ -#define __NR_sysinfo 214 /* Linux Specific */ -#define __NR_ipc 215 /* Linux Specific */ -#define __NR_sigreturn 216 /* Linux Specific */ -#define __NR_clone 217 /* Linux Specific */ -#define __NR_ioprio_get 218 /* Linux Specific */ -#define __NR_adjtimex 219 /* Linux Specific */ -#define __NR_sigprocmask 220 /* Linux Specific */ -#define __NR_create_module 221 /* Linux Specific */ -#define __NR_delete_module 222 /* Linux Specific */ -#define __NR_get_kernel_syms 223 /* Linux Specific */ -#define __NR_getpgid 224 /* Linux Specific */ -#define __NR_bdflush 225 /* Linux Specific */ -#define __NR_sysfs 226 /* Linux Specific */ -#define __NR_afs_syscall 227 /* Linux Specific */ -#define __NR_setfsuid 228 /* Linux Specific */ -#define __NR_setfsgid 229 /* Linux Specific */ -#define __NR__newselect 230 /* Linux Specific */ -#define __NR_time 231 /* Linux Specific */ -#define __NR_splice 232 /* Linux Specific */ -#define __NR_stime 233 /* Linux Specific */ -#define __NR_statfs64 234 /* Linux Specific */ -#define __NR_fstatfs64 235 /* Linux Specific */ -#define __NR__llseek 236 /* Linux Specific */ -#define __NR_mlock 237 -#define __NR_munlock 238 -#define __NR_mlockall 239 -#define __NR_munlockall 240 -#define __NR_sched_setparam 241 -#define __NR_sched_getparam 242 -#define __NR_sched_setscheduler 243 -#define __NR_sched_getscheduler 244 -#define __NR_sched_yield 245 -#define __NR_sched_get_priority_max 246 -#define __NR_sched_get_priority_min 247 -#define __NR_sched_rr_get_interval 248 -#define __NR_nanosleep 249 -#define __NR_mremap 250 -#define __NR__sysctl 251 -#define __NR_getsid 252 -#define __NR_fdatasync 253 -#define __NR_nfsservctl 254 -#define __NR_sync_file_range 255 -#define __NR_clock_settime 256 -#define __NR_clock_gettime 257 -#define __NR_clock_getres 258 -#define __NR_clock_nanosleep 259 -#define __NR_sched_getaffinity 260 -#define __NR_sched_setaffinity 261 -#define __NR_timer_settime 262 -#define __NR_timer_gettime 263 -#define __NR_timer_getoverrun 264 -#define __NR_timer_delete 265 -#define __NR_timer_create 266 -/* #define __NR_vserver 267 Reserved for VSERVER */ -#define __NR_io_setup 268 -#define __NR_io_destroy 269 -#define __NR_io_submit 270 -#define __NR_io_cancel 271 -#define __NR_io_getevents 272 -#define __NR_mq_open 273 -#define __NR_mq_unlink 274 -#define __NR_mq_timedsend 275 -#define __NR_mq_timedreceive 276 -#define __NR_mq_notify 277 -#define __NR_mq_getsetattr 278 -#define __NR_waitid 279 -#define __NR_tee 280 -#define __NR_add_key 281 -#define __NR_request_key 282 -#define __NR_keyctl 283 -#define __NR_openat 284 -#define __NR_mkdirat 285 -#define __NR_mknodat 286 -#define __NR_fchownat 287 -#define __NR_futimesat 288 -#define __NR_fstatat64 289 -#define __NR_unlinkat 290 -#define __NR_renameat 291 -#define __NR_linkat 292 -#define __NR_symlinkat 293 -#define __NR_readlinkat 294 -#define __NR_fchmodat 295 -#define __NR_faccessat 296 -#define __NR_pselect6 297 -#define __NR_ppoll 298 -#define __NR_unshare 299 -#define __NR_set_robust_list 300 -#define __NR_get_robust_list 301 -#define __NR_migrate_pages 302 -#define __NR_mbind 303 -#define __NR_get_mempolicy 304 -#define __NR_set_mempolicy 305 -#define __NR_kexec_load 306 -#define __NR_move_pages 307 -#define __NR_getcpu 308 -#define __NR_epoll_pwait 309 -#define __NR_utimensat 310 -#define __NR_signalfd 311 -#define __NR_timerfd_create 312 -#define __NR_eventfd 313 -#define __NR_fallocate 314 -#define __NR_timerfd_settime 315 -#define __NR_timerfd_gettime 316 - -#define NR_SYSCALLS 317 - -/* Sparc 32-bit only has the "setresuid32", "getresuid32" variants, - * it never had the plain ones and there is no value to adding those - * old versions into the syscall table. - */ -#define __IGNORE_setresuid -#define __IGNORE_getresuid -#define __IGNORE_setresgid -#define __IGNORE_getresgid - -#ifdef __KERNEL__ -#define __ARCH_WANT_IPC_PARSE_VERSION -#define __ARCH_WANT_OLD_READDIR -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_SYS_ALARM -#define __ARCH_WANT_SYS_GETHOSTNAME -#define __ARCH_WANT_SYS_PAUSE -#define __ARCH_WANT_SYS_SGETMASK -#define __ARCH_WANT_SYS_SIGNAL -#define __ARCH_WANT_SYS_TIME -#define __ARCH_WANT_SYS_UTIME -#define __ARCH_WANT_SYS_WAITPID -#define __ARCH_WANT_SYS_SOCKETCALL -#define __ARCH_WANT_SYS_FADVISE64 -#define __ARCH_WANT_SYS_GETPGRP -#define __ARCH_WANT_SYS_LLSEEK -#define __ARCH_WANT_SYS_NICE -#define __ARCH_WANT_SYS_OLDUMOUNT -#define __ARCH_WANT_SYS_SIGPENDING -#define __ARCH_WANT_SYS_SIGPROCMASK -#define __ARCH_WANT_SYS_RT_SIGSUSPEND - -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - -#endif /* __KERNEL__ */ -#endif /* _SPARC_UNISTD_H */ +#ifndef ___ASM_SPARC_UNISTD_H +#define ___ASM_SPARC_UNISTD_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/unistd_32.h b/include/asm-sparc/unistd_32.h new file mode 100644 index 000000000000..2338a0276377 --- /dev/null +++ b/include/asm-sparc/unistd_32.h @@ -0,0 +1,378 @@ +#ifndef _SPARC_UNISTD_H +#define _SPARC_UNISTD_H + +/* + * System calls under the Sparc. + * + * Don't be scared by the ugly clobbers, it is the only way I can + * think of right now to force the arguments into fixed registers + * before the trap into the system call with gcc 'asm' statements. + * + * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) + * + * SunOS compatibility based upon preliminary work which is: + * + * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) + */ + +#define __NR_restart_syscall 0 /* Linux Specific */ +#define __NR_exit 1 /* Common */ +#define __NR_fork 2 /* Common */ +#define __NR_read 3 /* Common */ +#define __NR_write 4 /* Common */ +#define __NR_open 5 /* Common */ +#define __NR_close 6 /* Common */ +#define __NR_wait4 7 /* Common */ +#define __NR_creat 8 /* Common */ +#define __NR_link 9 /* Common */ +#define __NR_unlink 10 /* Common */ +#define __NR_execv 11 /* SunOS Specific */ +#define __NR_chdir 12 /* Common */ +#define __NR_chown 13 /* Common */ +#define __NR_mknod 14 /* Common */ +#define __NR_chmod 15 /* Common */ +#define __NR_lchown 16 /* Common */ +#define __NR_brk 17 /* Common */ +#define __NR_perfctr 18 /* Performance counter operations */ +#define __NR_lseek 19 /* Common */ +#define __NR_getpid 20 /* Common */ +#define __NR_capget 21 /* Linux Specific */ +#define __NR_capset 22 /* Linux Specific */ +#define __NR_setuid 23 /* Implemented via setreuid in SunOS */ +#define __NR_getuid 24 /* Common */ +#define __NR_vmsplice 25 /* ENOSYS under SunOS */ +#define __NR_ptrace 26 /* Common */ +#define __NR_alarm 27 /* Implemented via setitimer in SunOS */ +#define __NR_sigaltstack 28 /* Common */ +#define __NR_pause 29 /* Is sigblock(0)->sigpause() in SunOS */ +#define __NR_utime 30 /* Implemented via utimes() under SunOS */ +#define __NR_lchown32 31 /* Linux sparc32 specific */ +#define __NR_fchown32 32 /* Linux sparc32 specific */ +#define __NR_access 33 /* Common */ +#define __NR_nice 34 /* Implemented via get/setpriority() in SunOS */ +#define __NR_chown32 35 /* Linux sparc32 specific */ +#define __NR_sync 36 /* Common */ +#define __NR_kill 37 /* Common */ +#define __NR_stat 38 /* Common */ +#define __NR_sendfile 39 /* Linux Specific */ +#define __NR_lstat 40 /* Common */ +#define __NR_dup 41 /* Common */ +#define __NR_pipe 42 /* Common */ +#define __NR_times 43 /* Implemented via getrusage() in SunOS */ +#define __NR_getuid32 44 /* Linux sparc32 specific */ +#define __NR_umount2 45 /* Linux Specific */ +#define __NR_setgid 46 /* Implemented via setregid() in SunOS */ +#define __NR_getgid 47 /* Common */ +#define __NR_signal 48 /* Implemented via sigvec() in SunOS */ +#define __NR_geteuid 49 /* SunOS calls getuid() */ +#define __NR_getegid 50 /* SunOS calls getgid() */ +#define __NR_acct 51 /* Common */ +/* #define __NR_memory_ordering 52 Linux sparc64 specific */ +#define __NR_getgid32 53 /* Linux sparc32 specific */ +#define __NR_ioctl 54 /* Common */ +#define __NR_reboot 55 /* Common */ +#define __NR_mmap2 56 /* Linux sparc32 Specific */ +#define __NR_symlink 57 /* Common */ +#define __NR_readlink 58 /* Common */ +#define __NR_execve 59 /* Common */ +#define __NR_umask 60 /* Common */ +#define __NR_chroot 61 /* Common */ +#define __NR_fstat 62 /* Common */ +#define __NR_fstat64 63 /* Linux Specific */ +#define __NR_getpagesize 64 /* Common */ +#define __NR_msync 65 /* Common in newer 1.3.x revs... */ +#define __NR_vfork 66 /* Common */ +#define __NR_pread64 67 /* Linux Specific */ +#define __NR_pwrite64 68 /* Linux Specific */ +#define __NR_geteuid32 69 /* Linux sparc32, sbrk under SunOS */ +#define __NR_getegid32 70 /* Linux sparc32, sstk under SunOS */ +#define __NR_mmap 71 /* Common */ +#define __NR_setreuid32 72 /* Linux sparc32, vadvise under SunOS */ +#define __NR_munmap 73 /* Common */ +#define __NR_mprotect 74 /* Common */ +#define __NR_madvise 75 /* Common */ +#define __NR_vhangup 76 /* Common */ +#define __NR_truncate64 77 /* Linux sparc32 Specific */ +#define __NR_mincore 78 /* Common */ +#define __NR_getgroups 79 /* Common */ +#define __NR_setgroups 80 /* Common */ +#define __NR_getpgrp 81 /* Common */ +#define __NR_setgroups32 82 /* Linux sparc32, setpgrp under SunOS */ +#define __NR_setitimer 83 /* Common */ +#define __NR_ftruncate64 84 /* Linux sparc32 Specific */ +#define __NR_swapon 85 /* Common */ +#define __NR_getitimer 86 /* Common */ +#define __NR_setuid32 87 /* Linux sparc32, gethostname under SunOS */ +#define __NR_sethostname 88 /* Common */ +#define __NR_setgid32 89 /* Linux sparc32, getdtablesize under SunOS */ +#define __NR_dup2 90 /* Common */ +#define __NR_setfsuid32 91 /* Linux sparc32, getdopt under SunOS */ +#define __NR_fcntl 92 /* Common */ +#define __NR_select 93 /* Common */ +#define __NR_setfsgid32 94 /* Linux sparc32, setdopt under SunOS */ +#define __NR_fsync 95 /* Common */ +#define __NR_setpriority 96 /* Common */ +#define __NR_socket 97 /* Common */ +#define __NR_connect 98 /* Common */ +#define __NR_accept 99 /* Common */ +#define __NR_getpriority 100 /* Common */ +#define __NR_rt_sigreturn 101 /* Linux Specific */ +#define __NR_rt_sigaction 102 /* Linux Specific */ +#define __NR_rt_sigprocmask 103 /* Linux Specific */ +#define __NR_rt_sigpending 104 /* Linux Specific */ +#define __NR_rt_sigtimedwait 105 /* Linux Specific */ +#define __NR_rt_sigqueueinfo 106 /* Linux Specific */ +#define __NR_rt_sigsuspend 107 /* Linux Specific */ +#define __NR_setresuid32 108 /* Linux Specific, sigvec under SunOS */ +#define __NR_getresuid32 109 /* Linux Specific, sigblock under SunOS */ +#define __NR_setresgid32 110 /* Linux Specific, sigsetmask under SunOS */ +#define __NR_getresgid32 111 /* Linux Specific, sigpause under SunOS */ +#define __NR_setregid32 112 /* Linux sparc32, sigstack under SunOS */ +#define __NR_recvmsg 113 /* Common */ +#define __NR_sendmsg 114 /* Common */ +#define __NR_getgroups32 115 /* Linux sparc32, vtrace under SunOS */ +#define __NR_gettimeofday 116 /* Common */ +#define __NR_getrusage 117 /* Common */ +#define __NR_getsockopt 118 /* Common */ +#define __NR_getcwd 119 /* Linux Specific */ +#define __NR_readv 120 /* Common */ +#define __NR_writev 121 /* Common */ +#define __NR_settimeofday 122 /* Common */ +#define __NR_fchown 123 /* Common */ +#define __NR_fchmod 124 /* Common */ +#define __NR_recvfrom 125 /* Common */ +#define __NR_setreuid 126 /* Common */ +#define __NR_setregid 127 /* Common */ +#define __NR_rename 128 /* Common */ +#define __NR_truncate 129 /* Common */ +#define __NR_ftruncate 130 /* Common */ +#define __NR_flock 131 /* Common */ +#define __NR_lstat64 132 /* Linux Specific */ +#define __NR_sendto 133 /* Common */ +#define __NR_shutdown 134 /* Common */ +#define __NR_socketpair 135 /* Common */ +#define __NR_mkdir 136 /* Common */ +#define __NR_rmdir 137 /* Common */ +#define __NR_utimes 138 /* SunOS Specific */ +#define __NR_stat64 139 /* Linux Specific */ +#define __NR_sendfile64 140 /* adjtime under SunOS */ +#define __NR_getpeername 141 /* Common */ +#define __NR_futex 142 /* gethostid under SunOS */ +#define __NR_gettid 143 /* ENOSYS under SunOS */ +#define __NR_getrlimit 144 /* Common */ +#define __NR_setrlimit 145 /* Common */ +#define __NR_pivot_root 146 /* Linux Specific, killpg under SunOS */ +#define __NR_prctl 147 /* ENOSYS under SunOS */ +#define __NR_pciconfig_read 148 /* ENOSYS under SunOS */ +#define __NR_pciconfig_write 149 /* ENOSYS under SunOS */ +#define __NR_getsockname 150 /* Common */ +#define __NR_inotify_init 151 /* Linux specific */ +#define __NR_inotify_add_watch 152 /* Linux specific */ +#define __NR_poll 153 /* Common */ +#define __NR_getdents64 154 /* Linux specific */ +#define __NR_fcntl64 155 /* Linux sparc32 Specific */ +#define __NR_inotify_rm_watch 156 /* Linux specific */ +#define __NR_statfs 157 /* Common */ +#define __NR_fstatfs 158 /* Common */ +#define __NR_umount 159 /* Common */ +#define __NR_sched_set_affinity 160 /* Linux specific, async_daemon under SunOS */ +#define __NR_sched_get_affinity 161 /* Linux specific, getfh under SunOS */ +#define __NR_getdomainname 162 /* SunOS Specific */ +#define __NR_setdomainname 163 /* Common */ +/* #define __NR_utrap_install 164 Linux sparc64 specific */ +#define __NR_quotactl 165 /* Common */ +#define __NR_set_tid_address 166 /* Linux specific, exportfs under SunOS */ +#define __NR_mount 167 /* Common */ +#define __NR_ustat 168 /* Common */ +#define __NR_setxattr 169 /* SunOS: semsys */ +#define __NR_lsetxattr 170 /* SunOS: msgsys */ +#define __NR_fsetxattr 171 /* SunOS: shmsys */ +#define __NR_getxattr 172 /* SunOS: auditsys */ +#define __NR_lgetxattr 173 /* SunOS: rfssys */ +#define __NR_getdents 174 /* Common */ +#define __NR_setsid 175 /* Common */ +#define __NR_fchdir 176 /* Common */ +#define __NR_fgetxattr 177 /* SunOS: fchroot */ +#define __NR_listxattr 178 /* SunOS: vpixsys */ +#define __NR_llistxattr 179 /* SunOS: aioread */ +#define __NR_flistxattr 180 /* SunOS: aiowrite */ +#define __NR_removexattr 181 /* SunOS: aiowait */ +#define __NR_lremovexattr 182 /* SunOS: aiocancel */ +#define __NR_sigpending 183 /* Common */ +#define __NR_query_module 184 /* Linux Specific */ +#define __NR_setpgid 185 /* Common */ +#define __NR_fremovexattr 186 /* SunOS: pathconf */ +#define __NR_tkill 187 /* SunOS: fpathconf */ +#define __NR_exit_group 188 /* Linux specific, sysconf undef SunOS */ +#define __NR_uname 189 /* Linux Specific */ +#define __NR_init_module 190 /* Linux Specific */ +#define __NR_personality 191 /* Linux Specific */ +#define __NR_remap_file_pages 192 /* Linux Specific */ +#define __NR_epoll_create 193 /* Linux Specific */ +#define __NR_epoll_ctl 194 /* Linux Specific */ +#define __NR_epoll_wait 195 /* Linux Specific */ +#define __NR_ioprio_set 196 /* Linux Specific */ +#define __NR_getppid 197 /* Linux Specific */ +#define __NR_sigaction 198 /* Linux Specific */ +#define __NR_sgetmask 199 /* Linux Specific */ +#define __NR_ssetmask 200 /* Linux Specific */ +#define __NR_sigsuspend 201 /* Linux Specific */ +#define __NR_oldlstat 202 /* Linux Specific */ +#define __NR_uselib 203 /* Linux Specific */ +#define __NR_readdir 204 /* Linux Specific */ +#define __NR_readahead 205 /* Linux Specific */ +#define __NR_socketcall 206 /* Linux Specific */ +#define __NR_syslog 207 /* Linux Specific */ +#define __NR_lookup_dcookie 208 /* Linux Specific */ +#define __NR_fadvise64 209 /* Linux Specific */ +#define __NR_fadvise64_64 210 /* Linux Specific */ +#define __NR_tgkill 211 /* Linux Specific */ +#define __NR_waitpid 212 /* Linux Specific */ +#define __NR_swapoff 213 /* Linux Specific */ +#define __NR_sysinfo 214 /* Linux Specific */ +#define __NR_ipc 215 /* Linux Specific */ +#define __NR_sigreturn 216 /* Linux Specific */ +#define __NR_clone 217 /* Linux Specific */ +#define __NR_ioprio_get 218 /* Linux Specific */ +#define __NR_adjtimex 219 /* Linux Specific */ +#define __NR_sigprocmask 220 /* Linux Specific */ +#define __NR_create_module 221 /* Linux Specific */ +#define __NR_delete_module 222 /* Linux Specific */ +#define __NR_get_kernel_syms 223 /* Linux Specific */ +#define __NR_getpgid 224 /* Linux Specific */ +#define __NR_bdflush 225 /* Linux Specific */ +#define __NR_sysfs 226 /* Linux Specific */ +#define __NR_afs_syscall 227 /* Linux Specific */ +#define __NR_setfsuid 228 /* Linux Specific */ +#define __NR_setfsgid 229 /* Linux Specific */ +#define __NR__newselect 230 /* Linux Specific */ +#define __NR_time 231 /* Linux Specific */ +#define __NR_splice 232 /* Linux Specific */ +#define __NR_stime 233 /* Linux Specific */ +#define __NR_statfs64 234 /* Linux Specific */ +#define __NR_fstatfs64 235 /* Linux Specific */ +#define __NR__llseek 236 /* Linux Specific */ +#define __NR_mlock 237 +#define __NR_munlock 238 +#define __NR_mlockall 239 +#define __NR_munlockall 240 +#define __NR_sched_setparam 241 +#define __NR_sched_getparam 242 +#define __NR_sched_setscheduler 243 +#define __NR_sched_getscheduler 244 +#define __NR_sched_yield 245 +#define __NR_sched_get_priority_max 246 +#define __NR_sched_get_priority_min 247 +#define __NR_sched_rr_get_interval 248 +#define __NR_nanosleep 249 +#define __NR_mremap 250 +#define __NR__sysctl 251 +#define __NR_getsid 252 +#define __NR_fdatasync 253 +#define __NR_nfsservctl 254 +#define __NR_sync_file_range 255 +#define __NR_clock_settime 256 +#define __NR_clock_gettime 257 +#define __NR_clock_getres 258 +#define __NR_clock_nanosleep 259 +#define __NR_sched_getaffinity 260 +#define __NR_sched_setaffinity 261 +#define __NR_timer_settime 262 +#define __NR_timer_gettime 263 +#define __NR_timer_getoverrun 264 +#define __NR_timer_delete 265 +#define __NR_timer_create 266 +/* #define __NR_vserver 267 Reserved for VSERVER */ +#define __NR_io_setup 268 +#define __NR_io_destroy 269 +#define __NR_io_submit 270 +#define __NR_io_cancel 271 +#define __NR_io_getevents 272 +#define __NR_mq_open 273 +#define __NR_mq_unlink 274 +#define __NR_mq_timedsend 275 +#define __NR_mq_timedreceive 276 +#define __NR_mq_notify 277 +#define __NR_mq_getsetattr 278 +#define __NR_waitid 279 +#define __NR_tee 280 +#define __NR_add_key 281 +#define __NR_request_key 282 +#define __NR_keyctl 283 +#define __NR_openat 284 +#define __NR_mkdirat 285 +#define __NR_mknodat 286 +#define __NR_fchownat 287 +#define __NR_futimesat 288 +#define __NR_fstatat64 289 +#define __NR_unlinkat 290 +#define __NR_renameat 291 +#define __NR_linkat 292 +#define __NR_symlinkat 293 +#define __NR_readlinkat 294 +#define __NR_fchmodat 295 +#define __NR_faccessat 296 +#define __NR_pselect6 297 +#define __NR_ppoll 298 +#define __NR_unshare 299 +#define __NR_set_robust_list 300 +#define __NR_get_robust_list 301 +#define __NR_migrate_pages 302 +#define __NR_mbind 303 +#define __NR_get_mempolicy 304 +#define __NR_set_mempolicy 305 +#define __NR_kexec_load 306 +#define __NR_move_pages 307 +#define __NR_getcpu 308 +#define __NR_epoll_pwait 309 +#define __NR_utimensat 310 +#define __NR_signalfd 311 +#define __NR_timerfd_create 312 +#define __NR_eventfd 313 +#define __NR_fallocate 314 +#define __NR_timerfd_settime 315 +#define __NR_timerfd_gettime 316 + +#define NR_SYSCALLS 317 + +/* Sparc 32-bit only has the "setresuid32", "getresuid32" variants, + * it never had the plain ones and there is no value to adding those + * old versions into the syscall table. + */ +#define __IGNORE_setresuid +#define __IGNORE_getresuid +#define __IGNORE_setresgid +#define __IGNORE_getresgid + +#ifdef __KERNEL__ +#define __ARCH_WANT_IPC_PARSE_VERSION +#define __ARCH_WANT_OLD_READDIR +#define __ARCH_WANT_STAT64 +#define __ARCH_WANT_SYS_ALARM +#define __ARCH_WANT_SYS_GETHOSTNAME +#define __ARCH_WANT_SYS_PAUSE +#define __ARCH_WANT_SYS_SGETMASK +#define __ARCH_WANT_SYS_SIGNAL +#define __ARCH_WANT_SYS_TIME +#define __ARCH_WANT_SYS_UTIME +#define __ARCH_WANT_SYS_WAITPID +#define __ARCH_WANT_SYS_SOCKETCALL +#define __ARCH_WANT_SYS_FADVISE64 +#define __ARCH_WANT_SYS_GETPGRP +#define __ARCH_WANT_SYS_LLSEEK +#define __ARCH_WANT_SYS_NICE +#define __ARCH_WANT_SYS_OLDUMOUNT +#define __ARCH_WANT_SYS_SIGPENDING +#define __ARCH_WANT_SYS_SIGPROCMASK +#define __ARCH_WANT_SYS_RT_SIGSUSPEND + +/* + * "Conditional" syscalls + * + * What we want is __attribute__((weak,alias("sys_ni_syscall"))), + * but it doesn't work on all toolchains, so we just do it by hand + */ +#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") + +#endif /* __KERNEL__ */ +#endif /* _SPARC_UNISTD_H */ diff --git a/include/asm-sparc/unistd_64.h b/include/asm-sparc/unistd_64.h new file mode 100644 index 000000000000..13be4453a1f0 --- /dev/null +++ b/include/asm-sparc/unistd_64.h @@ -0,0 +1,373 @@ +#ifndef _SPARC64_UNISTD_H +#define _SPARC64_UNISTD_H + +/* + * System calls under the Sparc. + * + * Don't be scared by the ugly clobbers, it is the only way I can + * think of right now to force the arguments into fixed registers + * before the trap into the system call with gcc 'asm' statements. + * + * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) + * + * SunOS compatibility based upon preliminary work which is: + * + * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) + */ + +#define __NR_restart_syscall 0 /* Linux Specific */ +#define __NR_exit 1 /* Common */ +#define __NR_fork 2 /* Common */ +#define __NR_read 3 /* Common */ +#define __NR_write 4 /* Common */ +#define __NR_open 5 /* Common */ +#define __NR_close 6 /* Common */ +#define __NR_wait4 7 /* Common */ +#define __NR_creat 8 /* Common */ +#define __NR_link 9 /* Common */ +#define __NR_unlink 10 /* Common */ +#define __NR_execv 11 /* SunOS Specific */ +#define __NR_chdir 12 /* Common */ +#define __NR_chown 13 /* Common */ +#define __NR_mknod 14 /* Common */ +#define __NR_chmod 15 /* Common */ +#define __NR_lchown 16 /* Common */ +#define __NR_brk 17 /* Common */ +#define __NR_perfctr 18 /* Performance counter operations */ +#define __NR_lseek 19 /* Common */ +#define __NR_getpid 20 /* Common */ +#define __NR_capget 21 /* Linux Specific */ +#define __NR_capset 22 /* Linux Specific */ +#define __NR_setuid 23 /* Implemented via setreuid in SunOS */ +#define __NR_getuid 24 /* Common */ +#define __NR_vmsplice 25 /* ENOSYS under SunOS */ +#define __NR_ptrace 26 /* Common */ +#define __NR_alarm 27 /* Implemented via setitimer in SunOS */ +#define __NR_sigaltstack 28 /* Common */ +#define __NR_pause 29 /* Is sigblock(0)->sigpause() in SunOS */ +#define __NR_utime 30 /* Implemented via utimes() under SunOS */ +/* #define __NR_lchown32 31 Linux sparc32 specific */ +/* #define __NR_fchown32 32 Linux sparc32 specific */ +#define __NR_access 33 /* Common */ +#define __NR_nice 34 /* Implemented via get/setpriority() in SunOS */ +/* #define __NR_chown32 35 Linux sparc32 specific */ +#define __NR_sync 36 /* Common */ +#define __NR_kill 37 /* Common */ +#define __NR_stat 38 /* Common */ +#define __NR_sendfile 39 /* Linux Specific */ +#define __NR_lstat 40 /* Common */ +#define __NR_dup 41 /* Common */ +#define __NR_pipe 42 /* Common */ +#define __NR_times 43 /* Implemented via getrusage() in SunOS */ +/* #define __NR_getuid32 44 Linux sparc32 specific */ +#define __NR_umount2 45 /* Linux Specific */ +#define __NR_setgid 46 /* Implemented via setregid() in SunOS */ +#define __NR_getgid 47 /* Common */ +#define __NR_signal 48 /* Implemented via sigvec() in SunOS */ +#define __NR_geteuid 49 /* SunOS calls getuid() */ +#define __NR_getegid 50 /* SunOS calls getgid() */ +#define __NR_acct 51 /* Common */ +#define __NR_memory_ordering 52 /* Linux Specific */ +/* #define __NR_getgid32 53 Linux sparc32 specific */ +#define __NR_ioctl 54 /* Common */ +#define __NR_reboot 55 /* Common */ +/* #define __NR_mmap2 56 Linux sparc32 Specific */ +#define __NR_symlink 57 /* Common */ +#define __NR_readlink 58 /* Common */ +#define __NR_execve 59 /* Common */ +#define __NR_umask 60 /* Common */ +#define __NR_chroot 61 /* Common */ +#define __NR_fstat 62 /* Common */ +#define __NR_fstat64 63 /* Linux Specific */ +#define __NR_getpagesize 64 /* Common */ +#define __NR_msync 65 /* Common in newer 1.3.x revs... */ +#define __NR_vfork 66 /* Common */ +#define __NR_pread64 67 /* Linux Specific */ +#define __NR_pwrite64 68 /* Linux Specific */ +/* #define __NR_geteuid32 69 Linux sparc32, sbrk under SunOS */ +/* #define __NR_getegid32 70 Linux sparc32, sstk under SunOS */ +#define __NR_mmap 71 /* Common */ +/* #define __NR_setreuid32 72 Linux sparc32, vadvise under SunOS */ +#define __NR_munmap 73 /* Common */ +#define __NR_mprotect 74 /* Common */ +#define __NR_madvise 75 /* Common */ +#define __NR_vhangup 76 /* Common */ +/* #define __NR_truncate64 77 Linux sparc32 Specific */ +#define __NR_mincore 78 /* Common */ +#define __NR_getgroups 79 /* Common */ +#define __NR_setgroups 80 /* Common */ +#define __NR_getpgrp 81 /* Common */ +/* #define __NR_setgroups32 82 Linux sparc32, setpgrp under SunOS */ +#define __NR_setitimer 83 /* Common */ +/* #define __NR_ftruncate64 84 Linux sparc32 Specific */ +#define __NR_swapon 85 /* Common */ +#define __NR_getitimer 86 /* Common */ +/* #define __NR_setuid32 87 Linux sparc32, gethostname under SunOS */ +#define __NR_sethostname 88 /* Common */ +/* #define __NR_setgid32 89 Linux sparc32, getdtablesize under SunOS */ +#define __NR_dup2 90 /* Common */ +/* #define __NR_setfsuid32 91 Linux sparc32, getdopt under SunOS */ +#define __NR_fcntl 92 /* Common */ +#define __NR_select 93 /* Common */ +/* #define __NR_setfsgid32 94 Linux sparc32, setdopt under SunOS */ +#define __NR_fsync 95 /* Common */ +#define __NR_setpriority 96 /* Common */ +#define __NR_socket 97 /* Common */ +#define __NR_connect 98 /* Common */ +#define __NR_accept 99 /* Common */ +#define __NR_getpriority 100 /* Common */ +#define __NR_rt_sigreturn 101 /* Linux Specific */ +#define __NR_rt_sigaction 102 /* Linux Specific */ +#define __NR_rt_sigprocmask 103 /* Linux Specific */ +#define __NR_rt_sigpending 104 /* Linux Specific */ +#define __NR_rt_sigtimedwait 105 /* Linux Specific */ +#define __NR_rt_sigqueueinfo 106 /* Linux Specific */ +#define __NR_rt_sigsuspend 107 /* Linux Specific */ +#define __NR_setresuid 108 /* Linux Specific, sigvec under SunOS */ +#define __NR_getresuid 109 /* Linux Specific, sigblock under SunOS */ +#define __NR_setresgid 110 /* Linux Specific, sigsetmask under SunOS */ +#define __NR_getresgid 111 /* Linux Specific, sigpause under SunOS */ +/* #define __NR_setregid32 75 Linux sparc32, sigstack under SunOS */ +#define __NR_recvmsg 113 /* Common */ +#define __NR_sendmsg 114 /* Common */ +/* #define __NR_getgroups32 115 Linux sparc32, vtrace under SunOS */ +#define __NR_gettimeofday 116 /* Common */ +#define __NR_getrusage 117 /* Common */ +#define __NR_getsockopt 118 /* Common */ +#define __NR_getcwd 119 /* Linux Specific */ +#define __NR_readv 120 /* Common */ +#define __NR_writev 121 /* Common */ +#define __NR_settimeofday 122 /* Common */ +#define __NR_fchown 123 /* Common */ +#define __NR_fchmod 124 /* Common */ +#define __NR_recvfrom 125 /* Common */ +#define __NR_setreuid 126 /* Common */ +#define __NR_setregid 127 /* Common */ +#define __NR_rename 128 /* Common */ +#define __NR_truncate 129 /* Common */ +#define __NR_ftruncate 130 /* Common */ +#define __NR_flock 131 /* Common */ +#define __NR_lstat64 132 /* Linux Specific */ +#define __NR_sendto 133 /* Common */ +#define __NR_shutdown 134 /* Common */ +#define __NR_socketpair 135 /* Common */ +#define __NR_mkdir 136 /* Common */ +#define __NR_rmdir 137 /* Common */ +#define __NR_utimes 138 /* SunOS Specific */ +#define __NR_stat64 139 /* Linux Specific */ +#define __NR_sendfile64 140 /* adjtime under SunOS */ +#define __NR_getpeername 141 /* Common */ +#define __NR_futex 142 /* gethostid under SunOS */ +#define __NR_gettid 143 /* ENOSYS under SunOS */ +#define __NR_getrlimit 144 /* Common */ +#define __NR_setrlimit 145 /* Common */ +#define __NR_pivot_root 146 /* Linux Specific, killpg under SunOS */ +#define __NR_prctl 147 /* ENOSYS under SunOS */ +#define __NR_pciconfig_read 148 /* ENOSYS under SunOS */ +#define __NR_pciconfig_write 149 /* ENOSYS under SunOS */ +#define __NR_getsockname 150 /* Common */ +#define __NR_inotify_init 151 /* Linux specific */ +#define __NR_inotify_add_watch 152 /* Linux specific */ +#define __NR_poll 153 /* Common */ +#define __NR_getdents64 154 /* Linux specific */ +/* #define __NR_fcntl64 155 Linux sparc32 Specific */ +#define __NR_inotify_rm_watch 156 /* Linux specific */ +#define __NR_statfs 157 /* Common */ +#define __NR_fstatfs 158 /* Common */ +#define __NR_umount 159 /* Common */ +#define __NR_sched_set_affinity 160 /* Linux specific, async_daemon under SunOS */ +#define __NR_sched_get_affinity 161 /* Linux specific, getfh under SunOS */ +#define __NR_getdomainname 162 /* SunOS Specific */ +#define __NR_setdomainname 163 /* Common */ +#define __NR_utrap_install 164 /* SYSV ABI/v9 required */ +#define __NR_quotactl 165 /* Common */ +#define __NR_set_tid_address 166 /* Linux specific, exportfs under SunOS */ +#define __NR_mount 167 /* Common */ +#define __NR_ustat 168 /* Common */ +#define __NR_setxattr 169 /* SunOS: semsys */ +#define __NR_lsetxattr 170 /* SunOS: msgsys */ +#define __NR_fsetxattr 171 /* SunOS: shmsys */ +#define __NR_getxattr 172 /* SunOS: auditsys */ +#define __NR_lgetxattr 173 /* SunOS: rfssys */ +#define __NR_getdents 174 /* Common */ +#define __NR_setsid 175 /* Common */ +#define __NR_fchdir 176 /* Common */ +#define __NR_fgetxattr 177 /* SunOS: fchroot */ +#define __NR_listxattr 178 /* SunOS: vpixsys */ +#define __NR_llistxattr 179 /* SunOS: aioread */ +#define __NR_flistxattr 180 /* SunOS: aiowrite */ +#define __NR_removexattr 181 /* SunOS: aiowait */ +#define __NR_lremovexattr 182 /* SunOS: aiocancel */ +#define __NR_sigpending 183 /* Common */ +#define __NR_query_module 184 /* Linux Specific */ +#define __NR_setpgid 185 /* Common */ +#define __NR_fremovexattr 186 /* SunOS: pathconf */ +#define __NR_tkill 187 /* SunOS: fpathconf */ +#define __NR_exit_group 188 /* Linux specific, sysconf undef SunOS */ +#define __NR_uname 189 /* Linux Specific */ +#define __NR_init_module 190 /* Linux Specific */ +#define __NR_personality 191 /* Linux Specific */ +#define __NR_remap_file_pages 192 /* Linux Specific */ +#define __NR_epoll_create 193 /* Linux Specific */ +#define __NR_epoll_ctl 194 /* Linux Specific */ +#define __NR_epoll_wait 195 /* Linux Specific */ +#define __NR_ioprio_set 196 /* Linux Specific */ +#define __NR_getppid 197 /* Linux Specific */ +#define __NR_sigaction 198 /* Linux Specific */ +#define __NR_sgetmask 199 /* Linux Specific */ +#define __NR_ssetmask 200 /* Linux Specific */ +#define __NR_sigsuspend 201 /* Linux Specific */ +#define __NR_oldlstat 202 /* Linux Specific */ +#define __NR_uselib 203 /* Linux Specific */ +#define __NR_readdir 204 /* Linux Specific */ +#define __NR_readahead 205 /* Linux Specific */ +#define __NR_socketcall 206 /* Linux Specific */ +#define __NR_syslog 207 /* Linux Specific */ +#define __NR_lookup_dcookie 208 /* Linux Specific */ +#define __NR_fadvise64 209 /* Linux Specific */ +#define __NR_fadvise64_64 210 /* Linux Specific */ +#define __NR_tgkill 211 /* Linux Specific */ +#define __NR_waitpid 212 /* Linux Specific */ +#define __NR_swapoff 213 /* Linux Specific */ +#define __NR_sysinfo 214 /* Linux Specific */ +#define __NR_ipc 215 /* Linux Specific */ +#define __NR_sigreturn 216 /* Linux Specific */ +#define __NR_clone 217 /* Linux Specific */ +#define __NR_ioprio_get 218 /* Linux Specific */ +#define __NR_adjtimex 219 /* Linux Specific */ +#define __NR_sigprocmask 220 /* Linux Specific */ +#define __NR_create_module 221 /* Linux Specific */ +#define __NR_delete_module 222 /* Linux Specific */ +#define __NR_get_kernel_syms 223 /* Linux Specific */ +#define __NR_getpgid 224 /* Linux Specific */ +#define __NR_bdflush 225 /* Linux Specific */ +#define __NR_sysfs 226 /* Linux Specific */ +#define __NR_afs_syscall 227 /* Linux Specific */ +#define __NR_setfsuid 228 /* Linux Specific */ +#define __NR_setfsgid 229 /* Linux Specific */ +#define __NR__newselect 230 /* Linux Specific */ +#ifdef __KERNEL__ +#define __NR_time 231 /* Linux sparc32 */ +#endif +#define __NR_splice 232 /* Linux Specific */ +#define __NR_stime 233 /* Linux Specific */ +#define __NR_statfs64 234 /* Linux Specific */ +#define __NR_fstatfs64 235 /* Linux Specific */ +#define __NR__llseek 236 /* Linux Specific */ +#define __NR_mlock 237 +#define __NR_munlock 238 +#define __NR_mlockall 239 +#define __NR_munlockall 240 +#define __NR_sched_setparam 241 +#define __NR_sched_getparam 242 +#define __NR_sched_setscheduler 243 +#define __NR_sched_getscheduler 244 +#define __NR_sched_yield 245 +#define __NR_sched_get_priority_max 246 +#define __NR_sched_get_priority_min 247 +#define __NR_sched_rr_get_interval 248 +#define __NR_nanosleep 249 +#define __NR_mremap 250 +#define __NR__sysctl 251 +#define __NR_getsid 252 +#define __NR_fdatasync 253 +#define __NR_nfsservctl 254 +#define __NR_sync_file_range 255 +#define __NR_clock_settime 256 +#define __NR_clock_gettime 257 +#define __NR_clock_getres 258 +#define __NR_clock_nanosleep 259 +#define __NR_sched_getaffinity 260 +#define __NR_sched_setaffinity 261 +#define __NR_timer_settime 262 +#define __NR_timer_gettime 263 +#define __NR_timer_getoverrun 264 +#define __NR_timer_delete 265 +#define __NR_timer_create 266 +/* #define __NR_vserver 267 Reserved for VSERVER */ +#define __NR_io_setup 268 +#define __NR_io_destroy 269 +#define __NR_io_submit 270 +#define __NR_io_cancel 271 +#define __NR_io_getevents 272 +#define __NR_mq_open 273 +#define __NR_mq_unlink 274 +#define __NR_mq_timedsend 275 +#define __NR_mq_timedreceive 276 +#define __NR_mq_notify 277 +#define __NR_mq_getsetattr 278 +#define __NR_waitid 279 +#define __NR_tee 280 +#define __NR_add_key 281 +#define __NR_request_key 282 +#define __NR_keyctl 283 +#define __NR_openat 284 +#define __NR_mkdirat 285 +#define __NR_mknodat 286 +#define __NR_fchownat 287 +#define __NR_futimesat 288 +#define __NR_fstatat64 289 +#define __NR_unlinkat 290 +#define __NR_renameat 291 +#define __NR_linkat 292 +#define __NR_symlinkat 293 +#define __NR_readlinkat 294 +#define __NR_fchmodat 295 +#define __NR_faccessat 296 +#define __NR_pselect6 297 +#define __NR_ppoll 298 +#define __NR_unshare 299 +#define __NR_set_robust_list 300 +#define __NR_get_robust_list 301 +#define __NR_migrate_pages 302 +#define __NR_mbind 303 +#define __NR_get_mempolicy 304 +#define __NR_set_mempolicy 305 +#define __NR_kexec_load 306 +#define __NR_move_pages 307 +#define __NR_getcpu 308 +#define __NR_epoll_pwait 309 +#define __NR_utimensat 310 +#define __NR_signalfd 311 +#define __NR_timerfd_create 312 +#define __NR_eventfd 313 +#define __NR_fallocate 314 +#define __NR_timerfd_settime 315 +#define __NR_timerfd_gettime 316 + +#define NR_SYSCALLS 317 + +#ifdef __KERNEL__ +#define __ARCH_WANT_IPC_PARSE_VERSION +#define __ARCH_WANT_OLD_READDIR +#define __ARCH_WANT_STAT64 +#define __ARCH_WANT_SYS_ALARM +#define __ARCH_WANT_SYS_GETHOSTNAME +#define __ARCH_WANT_SYS_PAUSE +#define __ARCH_WANT_SYS_SGETMASK +#define __ARCH_WANT_SYS_SIGNAL +#define __ARCH_WANT_SYS_TIME +#define __ARCH_WANT_COMPAT_SYS_TIME +#define __ARCH_WANT_SYS_UTIME +#define __ARCH_WANT_SYS_WAITPID +#define __ARCH_WANT_SYS_SOCKETCALL +#define __ARCH_WANT_SYS_FADVISE64 +#define __ARCH_WANT_SYS_GETPGRP +#define __ARCH_WANT_SYS_LLSEEK +#define __ARCH_WANT_SYS_NICE +#define __ARCH_WANT_SYS_OLDUMOUNT +#define __ARCH_WANT_SYS_SIGPENDING +#define __ARCH_WANT_SYS_SIGPROCMASK +#define __ARCH_WANT_SYS_RT_SIGSUSPEND +#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND + +/* + * "Conditional" syscalls + * + * What we want is __attribute__((weak,alias("sys_ni_syscall"))), + * but it doesn't work on all toolchains, so we just do it by hand + */ +#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") + +#endif /* __KERNEL__ */ +#endif /* _SPARC64_UNISTD_H */ diff --git a/include/asm-sparc/xor.h b/include/asm-sparc/xor.h index f34b2cfa8206..35089a838c3f 100644 --- a/include/asm-sparc/xor.h +++ b/include/asm-sparc/xor.h @@ -1,269 +1,8 @@ -/* - * include/asm-sparc/xor.h - * - * Optimized RAID-5 checksumming functions for 32-bit Sparc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * You should have received a copy of the GNU General Public License - * (for example /usr/src/linux/COPYING); if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -/* - * High speed xor_block operation for RAID4/5 utilizing the - * ldd/std SPARC instructions. - * - * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) - */ - -static void -sparc_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) -{ - int lines = bytes / (sizeof (long)) / 8; - - do { - __asm__ __volatile__( - "ldd [%0 + 0x00], %%g2\n\t" - "ldd [%0 + 0x08], %%g4\n\t" - "ldd [%0 + 0x10], %%o0\n\t" - "ldd [%0 + 0x18], %%o2\n\t" - "ldd [%1 + 0x00], %%o4\n\t" - "ldd [%1 + 0x08], %%l0\n\t" - "ldd [%1 + 0x10], %%l2\n\t" - "ldd [%1 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "std %%g2, [%0 + 0x00]\n\t" - "std %%g4, [%0 + 0x08]\n\t" - "std %%o0, [%0 + 0x10]\n\t" - "std %%o2, [%0 + 0x18]\n" - : - : "r" (p1), "r" (p2) - : "g2", "g3", "g4", "g5", - "o0", "o1", "o2", "o3", "o4", "o5", - "l0", "l1", "l2", "l3", "l4", "l5"); - p1 += 8; - p2 += 8; - } while (--lines > 0); -} - -static void -sparc_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3) -{ - int lines = bytes / (sizeof (long)) / 8; - - do { - __asm__ __volatile__( - "ldd [%0 + 0x00], %%g2\n\t" - "ldd [%0 + 0x08], %%g4\n\t" - "ldd [%0 + 0x10], %%o0\n\t" - "ldd [%0 + 0x18], %%o2\n\t" - "ldd [%1 + 0x00], %%o4\n\t" - "ldd [%1 + 0x08], %%l0\n\t" - "ldd [%1 + 0x10], %%l2\n\t" - "ldd [%1 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "ldd [%2 + 0x00], %%o4\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "ldd [%2 + 0x08], %%l0\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "ldd [%2 + 0x10], %%l2\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "ldd [%2 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "std %%g2, [%0 + 0x00]\n\t" - "std %%g4, [%0 + 0x08]\n\t" - "std %%o0, [%0 + 0x10]\n\t" - "std %%o2, [%0 + 0x18]\n" - : - : "r" (p1), "r" (p2), "r" (p3) - : "g2", "g3", "g4", "g5", - "o0", "o1", "o2", "o3", "o4", "o5", - "l0", "l1", "l2", "l3", "l4", "l5"); - p1 += 8; - p2 += 8; - p3 += 8; - } while (--lines > 0); -} - -static void -sparc_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4) -{ - int lines = bytes / (sizeof (long)) / 8; - - do { - __asm__ __volatile__( - "ldd [%0 + 0x00], %%g2\n\t" - "ldd [%0 + 0x08], %%g4\n\t" - "ldd [%0 + 0x10], %%o0\n\t" - "ldd [%0 + 0x18], %%o2\n\t" - "ldd [%1 + 0x00], %%o4\n\t" - "ldd [%1 + 0x08], %%l0\n\t" - "ldd [%1 + 0x10], %%l2\n\t" - "ldd [%1 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "ldd [%2 + 0x00], %%o4\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "ldd [%2 + 0x08], %%l0\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "ldd [%2 + 0x10], %%l2\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "ldd [%2 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "ldd [%3 + 0x00], %%o4\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "ldd [%3 + 0x08], %%l0\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "ldd [%3 + 0x10], %%l2\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "ldd [%3 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "std %%g2, [%0 + 0x00]\n\t" - "std %%g4, [%0 + 0x08]\n\t" - "std %%o0, [%0 + 0x10]\n\t" - "std %%o2, [%0 + 0x18]\n" - : - : "r" (p1), "r" (p2), "r" (p3), "r" (p4) - : "g2", "g3", "g4", "g5", - "o0", "o1", "o2", "o3", "o4", "o5", - "l0", "l1", "l2", "l3", "l4", "l5"); - p1 += 8; - p2 += 8; - p3 += 8; - p4 += 8; - } while (--lines > 0); -} - -static void -sparc_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4, unsigned long *p5) -{ - int lines = bytes / (sizeof (long)) / 8; - - do { - __asm__ __volatile__( - "ldd [%0 + 0x00], %%g2\n\t" - "ldd [%0 + 0x08], %%g4\n\t" - "ldd [%0 + 0x10], %%o0\n\t" - "ldd [%0 + 0x18], %%o2\n\t" - "ldd [%1 + 0x00], %%o4\n\t" - "ldd [%1 + 0x08], %%l0\n\t" - "ldd [%1 + 0x10], %%l2\n\t" - "ldd [%1 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "ldd [%2 + 0x00], %%o4\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "ldd [%2 + 0x08], %%l0\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "ldd [%2 + 0x10], %%l2\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "ldd [%2 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "ldd [%3 + 0x00], %%o4\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "ldd [%3 + 0x08], %%l0\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "ldd [%3 + 0x10], %%l2\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "ldd [%3 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "ldd [%4 + 0x00], %%o4\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "ldd [%4 + 0x08], %%l0\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "ldd [%4 + 0x10], %%l2\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "ldd [%4 + 0x18], %%l4\n\t" - "xor %%g2, %%o4, %%g2\n\t" - "xor %%g3, %%o5, %%g3\n\t" - "xor %%g4, %%l0, %%g4\n\t" - "xor %%g5, %%l1, %%g5\n\t" - "xor %%o0, %%l2, %%o0\n\t" - "xor %%o1, %%l3, %%o1\n\t" - "xor %%o2, %%l4, %%o2\n\t" - "xor %%o3, %%l5, %%o3\n\t" - "std %%g2, [%0 + 0x00]\n\t" - "std %%g4, [%0 + 0x08]\n\t" - "std %%o0, [%0 + 0x10]\n\t" - "std %%o2, [%0 + 0x18]\n" - : - : "r" (p1), "r" (p2), "r" (p3), "r" (p4), "r" (p5) - : "g2", "g3", "g4", "g5", - "o0", "o1", "o2", "o3", "o4", "o5", - "l0", "l1", "l2", "l3", "l4", "l5"); - p1 += 8; - p2 += 8; - p3 += 8; - p4 += 8; - p5 += 8; - } while (--lines > 0); -} - -static struct xor_block_template xor_block_SPARC = { - .name = "SPARC", - .do_2 = sparc_2, - .do_3 = sparc_3, - .do_4 = sparc_4, - .do_5 = sparc_5, -}; - -/* For grins, also test the generic routines. */ -#include - -#undef XOR_TRY_TEMPLATES -#define XOR_TRY_TEMPLATES \ - do { \ - xor_speed(&xor_block_8regs); \ - xor_speed(&xor_block_32regs); \ - xor_speed(&xor_block_SPARC); \ - } while (0) +#ifndef ___ASM_SPARC_XOR_H +#define ___ASM_SPARC_XOR_H +#if defined(__sparc__) && defined(__arch64__) +#include +#else +#include +#endif +#endif diff --git a/include/asm-sparc/xor_32.h b/include/asm-sparc/xor_32.h new file mode 100644 index 000000000000..f34b2cfa8206 --- /dev/null +++ b/include/asm-sparc/xor_32.h @@ -0,0 +1,269 @@ +/* + * include/asm-sparc/xor.h + * + * Optimized RAID-5 checksumming functions for 32-bit Sparc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * You should have received a copy of the GNU General Public License + * (for example /usr/src/linux/COPYING); if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * High speed xor_block operation for RAID4/5 utilizing the + * ldd/std SPARC instructions. + * + * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) + */ + +static void +sparc_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) +{ + int lines = bytes / (sizeof (long)) / 8; + + do { + __asm__ __volatile__( + "ldd [%0 + 0x00], %%g2\n\t" + "ldd [%0 + 0x08], %%g4\n\t" + "ldd [%0 + 0x10], %%o0\n\t" + "ldd [%0 + 0x18], %%o2\n\t" + "ldd [%1 + 0x00], %%o4\n\t" + "ldd [%1 + 0x08], %%l0\n\t" + "ldd [%1 + 0x10], %%l2\n\t" + "ldd [%1 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "std %%g2, [%0 + 0x00]\n\t" + "std %%g4, [%0 + 0x08]\n\t" + "std %%o0, [%0 + 0x10]\n\t" + "std %%o2, [%0 + 0x18]\n" + : + : "r" (p1), "r" (p2) + : "g2", "g3", "g4", "g5", + "o0", "o1", "o2", "o3", "o4", "o5", + "l0", "l1", "l2", "l3", "l4", "l5"); + p1 += 8; + p2 += 8; + } while (--lines > 0); +} + +static void +sparc_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, + unsigned long *p3) +{ + int lines = bytes / (sizeof (long)) / 8; + + do { + __asm__ __volatile__( + "ldd [%0 + 0x00], %%g2\n\t" + "ldd [%0 + 0x08], %%g4\n\t" + "ldd [%0 + 0x10], %%o0\n\t" + "ldd [%0 + 0x18], %%o2\n\t" + "ldd [%1 + 0x00], %%o4\n\t" + "ldd [%1 + 0x08], %%l0\n\t" + "ldd [%1 + 0x10], %%l2\n\t" + "ldd [%1 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "ldd [%2 + 0x00], %%o4\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "ldd [%2 + 0x08], %%l0\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "ldd [%2 + 0x10], %%l2\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "ldd [%2 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "std %%g2, [%0 + 0x00]\n\t" + "std %%g4, [%0 + 0x08]\n\t" + "std %%o0, [%0 + 0x10]\n\t" + "std %%o2, [%0 + 0x18]\n" + : + : "r" (p1), "r" (p2), "r" (p3) + : "g2", "g3", "g4", "g5", + "o0", "o1", "o2", "o3", "o4", "o5", + "l0", "l1", "l2", "l3", "l4", "l5"); + p1 += 8; + p2 += 8; + p3 += 8; + } while (--lines > 0); +} + +static void +sparc_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, + unsigned long *p3, unsigned long *p4) +{ + int lines = bytes / (sizeof (long)) / 8; + + do { + __asm__ __volatile__( + "ldd [%0 + 0x00], %%g2\n\t" + "ldd [%0 + 0x08], %%g4\n\t" + "ldd [%0 + 0x10], %%o0\n\t" + "ldd [%0 + 0x18], %%o2\n\t" + "ldd [%1 + 0x00], %%o4\n\t" + "ldd [%1 + 0x08], %%l0\n\t" + "ldd [%1 + 0x10], %%l2\n\t" + "ldd [%1 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "ldd [%2 + 0x00], %%o4\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "ldd [%2 + 0x08], %%l0\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "ldd [%2 + 0x10], %%l2\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "ldd [%2 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "ldd [%3 + 0x00], %%o4\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "ldd [%3 + 0x08], %%l0\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "ldd [%3 + 0x10], %%l2\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "ldd [%3 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "std %%g2, [%0 + 0x00]\n\t" + "std %%g4, [%0 + 0x08]\n\t" + "std %%o0, [%0 + 0x10]\n\t" + "std %%o2, [%0 + 0x18]\n" + : + : "r" (p1), "r" (p2), "r" (p3), "r" (p4) + : "g2", "g3", "g4", "g5", + "o0", "o1", "o2", "o3", "o4", "o5", + "l0", "l1", "l2", "l3", "l4", "l5"); + p1 += 8; + p2 += 8; + p3 += 8; + p4 += 8; + } while (--lines > 0); +} + +static void +sparc_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, + unsigned long *p3, unsigned long *p4, unsigned long *p5) +{ + int lines = bytes / (sizeof (long)) / 8; + + do { + __asm__ __volatile__( + "ldd [%0 + 0x00], %%g2\n\t" + "ldd [%0 + 0x08], %%g4\n\t" + "ldd [%0 + 0x10], %%o0\n\t" + "ldd [%0 + 0x18], %%o2\n\t" + "ldd [%1 + 0x00], %%o4\n\t" + "ldd [%1 + 0x08], %%l0\n\t" + "ldd [%1 + 0x10], %%l2\n\t" + "ldd [%1 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "ldd [%2 + 0x00], %%o4\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "ldd [%2 + 0x08], %%l0\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "ldd [%2 + 0x10], %%l2\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "ldd [%2 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "ldd [%3 + 0x00], %%o4\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "ldd [%3 + 0x08], %%l0\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "ldd [%3 + 0x10], %%l2\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "ldd [%3 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "ldd [%4 + 0x00], %%o4\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "ldd [%4 + 0x08], %%l0\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "ldd [%4 + 0x10], %%l2\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "ldd [%4 + 0x18], %%l4\n\t" + "xor %%g2, %%o4, %%g2\n\t" + "xor %%g3, %%o5, %%g3\n\t" + "xor %%g4, %%l0, %%g4\n\t" + "xor %%g5, %%l1, %%g5\n\t" + "xor %%o0, %%l2, %%o0\n\t" + "xor %%o1, %%l3, %%o1\n\t" + "xor %%o2, %%l4, %%o2\n\t" + "xor %%o3, %%l5, %%o3\n\t" + "std %%g2, [%0 + 0x00]\n\t" + "std %%g4, [%0 + 0x08]\n\t" + "std %%o0, [%0 + 0x10]\n\t" + "std %%o2, [%0 + 0x18]\n" + : + : "r" (p1), "r" (p2), "r" (p3), "r" (p4), "r" (p5) + : "g2", "g3", "g4", "g5", + "o0", "o1", "o2", "o3", "o4", "o5", + "l0", "l1", "l2", "l3", "l4", "l5"); + p1 += 8; + p2 += 8; + p3 += 8; + p4 += 8; + p5 += 8; + } while (--lines > 0); +} + +static struct xor_block_template xor_block_SPARC = { + .name = "SPARC", + .do_2 = sparc_2, + .do_3 = sparc_3, + .do_4 = sparc_4, + .do_5 = sparc_5, +}; + +/* For grins, also test the generic routines. */ +#include + +#undef XOR_TRY_TEMPLATES +#define XOR_TRY_TEMPLATES \ + do { \ + xor_speed(&xor_block_8regs); \ + xor_speed(&xor_block_32regs); \ + xor_speed(&xor_block_SPARC); \ + } while (0) diff --git a/include/asm-sparc/xor_64.h b/include/asm-sparc/xor_64.h new file mode 100644 index 000000000000..a0233884fc94 --- /dev/null +++ b/include/asm-sparc/xor_64.h @@ -0,0 +1,70 @@ +/* + * include/asm-sparc64/xor.h + * + * High speed xor_block operation for RAID4/5 utilizing the + * UltraSparc Visual Instruction Set and Niagara block-init + * twin-load instructions. + * + * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) + * Copyright (C) 2006 David S. Miller + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * You should have received a copy of the GNU General Public License + * (for example /usr/src/linux/COPYING); if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include + +extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *); +extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *, + unsigned long *); +extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *, + unsigned long *, unsigned long *); +extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *, + unsigned long *, unsigned long *, unsigned long *); + +/* XXX Ugh, write cheetah versions... -DaveM */ + +static struct xor_block_template xor_block_VIS = { + .name = "VIS", + .do_2 = xor_vis_2, + .do_3 = xor_vis_3, + .do_4 = xor_vis_4, + .do_5 = xor_vis_5, +}; + +extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); +extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, + unsigned long *); +extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, + unsigned long *, unsigned long *); +extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, + unsigned long *, unsigned long *, unsigned long *); + +static struct xor_block_template xor_block_niagara = { + .name = "Niagara", + .do_2 = xor_niagara_2, + .do_3 = xor_niagara_3, + .do_4 = xor_niagara_4, + .do_5 = xor_niagara_5, +}; + +#undef XOR_TRY_TEMPLATES +#define XOR_TRY_TEMPLATES \ + do { \ + xor_speed(&xor_block_VIS); \ + xor_speed(&xor_block_niagara); \ + } while (0) + +/* For VIS for everything except Niagara. */ +#define XOR_SELECT_TEMPLATE(FASTEST) \ + ((tlb_type == hypervisor && \ + (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \ + sun4v_chip_type == SUN4V_CHIP_NIAGARA2)) ? \ + &xor_block_niagara : \ + &xor_block_VIS) diff --git a/include/asm-sparc64/Kbuild b/include/asm-sparc64/Kbuild index 7e88c1292d10..6cdaf9d33b38 100644 --- a/include/asm-sparc64/Kbuild +++ b/include/asm-sparc64/Kbuild @@ -1,21 +1 @@ -include include/asm-generic/Kbuild.asm - -ALTARCH := sparc -ARCHDEF := defined __sparc__ && defined __arch64__ -ALTARCHDEF := defined __sparc__ && !defined __arch64__ - -header-y += asi.h -header-y += bpp.h -header-y += display7seg.h -header-y += envctrl.h -header-y += openprom.h -header-y += openpromio.h -header-y += psrcompat.h -header-y += pstate.h -header-y += reg.h -header-y += uctx.h -header-y += utrap.h -header-y += watchdog.h - -unifdef-y += fbio.h -unifdef-y += perfctr.h +# dummy file to avoid breaking make headers_install diff --git a/include/asm-sparc64/atomic.h b/include/asm-sparc64/atomic.h index 2c71ec4a3b18..f5126826ba34 100644 --- a/include/asm-sparc64/atomic.h +++ b/include/asm-sparc64/atomic.h @@ -1,128 +1 @@ -/* atomic.h: Thankfully the V9 is at least reasonable for this - * stuff. - * - * Copyright (C) 1996, 1997, 2000 David S. Miller (davem@redhat.com) - */ - -#ifndef __ARCH_SPARC64_ATOMIC__ -#define __ARCH_SPARC64_ATOMIC__ - -#include -#include - -typedef struct { volatile int counter; } atomic_t; -typedef struct { volatile __s64 counter; } atomic64_t; - -#define ATOMIC_INIT(i) { (i) } -#define ATOMIC64_INIT(i) { (i) } - -#define atomic_read(v) ((v)->counter) -#define atomic64_read(v) ((v)->counter) - -#define atomic_set(v, i) (((v)->counter) = i) -#define atomic64_set(v, i) (((v)->counter) = i) - -extern void atomic_add(int, atomic_t *); -extern void atomic64_add(int, atomic64_t *); -extern void atomic_sub(int, atomic_t *); -extern void atomic64_sub(int, atomic64_t *); - -extern int atomic_add_ret(int, atomic_t *); -extern int atomic64_add_ret(int, atomic64_t *); -extern int atomic_sub_ret(int, atomic_t *); -extern int atomic64_sub_ret(int, atomic64_t *); - -#define atomic_dec_return(v) atomic_sub_ret(1, v) -#define atomic64_dec_return(v) atomic64_sub_ret(1, v) - -#define atomic_inc_return(v) atomic_add_ret(1, v) -#define atomic64_inc_return(v) atomic64_add_ret(1, v) - -#define atomic_sub_return(i, v) atomic_sub_ret(i, v) -#define atomic64_sub_return(i, v) atomic64_sub_ret(i, v) - -#define atomic_add_return(i, v) atomic_add_ret(i, v) -#define atomic64_add_return(i, v) atomic64_add_ret(i, v) - -/* - * atomic_inc_and_test - increment and test - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) -#define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) - -#define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0) -#define atomic64_sub_and_test(i, v) (atomic64_sub_ret(i, v) == 0) - -#define atomic_dec_and_test(v) (atomic_sub_ret(1, v) == 0) -#define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0) - -#define atomic_inc(v) atomic_add(1, v) -#define atomic64_inc(v) atomic64_add(1, v) - -#define atomic_dec(v) atomic_sub(1, v) -#define atomic64_dec(v) atomic64_sub(1, v) - -#define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0) -#define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0) - -#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) -#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) - -static inline int atomic_add_unless(atomic_t *v, int a, int u) -{ - int c, old; - c = atomic_read(v); - for (;;) { - if (unlikely(c == (u))) - break; - old = atomic_cmpxchg((v), c, c + (a)); - if (likely(old == c)) - break; - c = old; - } - return c != (u); -} - -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -#define atomic64_cmpxchg(v, o, n) \ - ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n))) -#define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) - -static inline int atomic64_add_unless(atomic64_t *v, long a, long u) -{ - long c, old; - c = atomic64_read(v); - for (;;) { - if (unlikely(c == (u))) - break; - old = atomic64_cmpxchg((v), c, c + (a)); - if (likely(old == c)) - break; - c = old; - } - return c != (u); -} - -#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) - -/* Atomic operations are already serializing */ -#ifdef CONFIG_SMP -#define smp_mb__before_atomic_dec() membar_storeload_loadload(); -#define smp_mb__after_atomic_dec() membar_storeload_storestore(); -#define smp_mb__before_atomic_inc() membar_storeload_loadload(); -#define smp_mb__after_atomic_inc() membar_storeload_storestore(); -#else -#define smp_mb__before_atomic_dec() barrier() -#define smp_mb__after_atomic_dec() barrier() -#define smp_mb__before_atomic_inc() barrier() -#define smp_mb__after_atomic_inc() barrier() -#endif - -#include -#endif /* !(__ARCH_SPARC64_ATOMIC__) */ +#include diff --git a/include/asm-sparc64/auxio.h b/include/asm-sparc64/auxio.h index c4100494c7a5..46c9042f30b4 100644 --- a/include/asm-sparc64/auxio.h +++ b/include/asm-sparc64/auxio.h @@ -1,100 +1 @@ -/* - * auxio.h: Definitions and code for the Auxiliary I/O registers. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * - * Refactoring for unified NCR/PCIO support 2002 Eric Brower (ebrower@usa.net) - */ -#ifndef _SPARC64_AUXIO_H -#define _SPARC64_AUXIO_H - -/* AUXIO implementations: - * sbus-based NCR89C105 "Slavio" - * LED/Floppy (AUX1) register - * Power (AUX2) register - * - * ebus-based auxio on PCIO - * LED Auxio Register - * Power Auxio Register - * - * Register definitions from NCR _NCR89C105 Chip Specification_ - * - * SLAVIO AUX1 @ 0x1900000 - * ------------------------------------------------- - * | (R) | (R) | D | (R) | E | M | T | L | - * ------------------------------------------------- - * (R) - bit 7:6,4 are reserved and should be masked in s/w - * D - Floppy Density Sense (1=high density) R/O - * E - Link Test Enable, directly reflected on AT&T 7213 LTE pin - * M - Monitor/Mouse Mux, directly reflected on MON_MSE_MUX pin - * T - Terminal Count: sends TC pulse to 82077 floppy controller - * L - System LED on front panel (0=off, 1=on) - */ -#define AUXIO_AUX1_MASK 0xc0 /* Mask bits */ -#define AUXIO_AUX1_FDENS 0x20 /* Floppy Density Sense */ -#define AUXIO_AUX1_LTE 0x08 /* Link Test Enable */ -#define AUXIO_AUX1_MMUX 0x04 /* Monitor/Mouse Mux */ -#define AUXIO_AUX1_FTCNT 0x02 /* Terminal Count, */ -#define AUXIO_AUX1_LED 0x01 /* System LED */ - -/* SLAVIO AUX2 @ 0x1910000 - * ------------------------------------------------- - * | (R) | (R) | D | (R) | (R) | (R) | C | F | - * ------------------------------------------------- - * (R) - bits 7:6,4:2 are reserved and should be masked in s/w - * D - Power Failure Detect (1=power fail) - * C - Clear Power Failure Detect Int (1=clear) - * F - Power Off (1=power off) - */ -#define AUXIO_AUX2_MASK 0xdc /* Mask Bits */ -#define AUXIO_AUX2_PFAILDET 0x20 /* Power Fail Detect */ -#define AUXIO_AUX2_PFAILCLR 0x02 /* Clear Pwr Fail Det Intr */ -#define AUXIO_AUX2_PWR_OFF 0x01 /* Power Off */ - -/* Register definitions from Sun Microsystems _PCIO_ p/n 802-7837 - * - * PCIO LED Auxio @ 0x726000 - * ------------------------------------------------- - * | 31:1 Unused | LED | - * ------------------------------------------------- - * Bits 31:1 unused - * LED - System LED on front panel (0=off, 1=on) - */ -#define AUXIO_PCIO_LED 0x01 /* System LED */ - -/* PCIO Power Auxio @ 0x724000 - * ------------------------------------------------- - * | 31:2 Unused | CPO | SPO | - * ------------------------------------------------- - * Bits 31:2 unused - * CPO - Courtesy Power Off (1=off) - * SPO - System Power Off (1=off) - */ -#define AUXIO_PCIO_CPWR_OFF 0x02 /* Courtesy Power Off */ -#define AUXIO_PCIO_SPWR_OFF 0x01 /* System Power Off */ - -#ifndef __ASSEMBLY__ - -extern void __iomem *auxio_register; - -#define AUXIO_LTE_ON 1 -#define AUXIO_LTE_OFF 0 - -/* auxio_set_lte - Set Link Test Enable (TPE Link Detect) - * - * on - AUXIO_LTE_ON or AUXIO_LTE_OFF - */ -extern void auxio_set_lte(int on); - -#define AUXIO_LED_ON 1 -#define AUXIO_LED_OFF 0 - -/* auxio_set_led - Set system front panel LED - * - * on - AUXIO_LED_ON or AUXIO_LED_OFF - */ -extern void auxio_set_led(int on); - -#endif /* ifndef __ASSEMBLY__ */ - -#endif /* !(_SPARC64_AUXIO_H) */ +#include diff --git a/include/asm-sparc64/bitops.h b/include/asm-sparc64/bitops.h index bb87b8080220..204404355bdd 100644 --- a/include/asm-sparc64/bitops.h +++ b/include/asm-sparc64/bitops.h @@ -1,107 +1 @@ -/* - * bitops.h: Bit string operations on the V9. - * - * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC64_BITOPS_H -#define _SPARC64_BITOPS_H - -#ifndef _LINUX_BITOPS_H -#error only can be included directly -#endif - -#include -#include - -extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); -extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); -extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); -extern void set_bit(unsigned long nr, volatile unsigned long *addr); -extern void clear_bit(unsigned long nr, volatile unsigned long *addr); -extern void change_bit(unsigned long nr, volatile unsigned long *addr); - -#include - -#ifdef CONFIG_SMP -#define smp_mb__before_clear_bit() membar_storeload_loadload() -#define smp_mb__after_clear_bit() membar_storeload_storestore() -#else -#define smp_mb__before_clear_bit() barrier() -#define smp_mb__after_clear_bit() barrier() -#endif - -#include -#include -#include -#include -#include - -#ifdef __KERNEL__ - -#include -#include - -/* - * hweightN: returns the hamming weight (i.e. the number - * of bits set) of a N-bit word - */ - -#ifdef ULTRA_HAS_POPULATION_COUNT - -static inline unsigned int hweight64(unsigned long w) -{ - unsigned int res; - - __asm__ ("popc %1,%0" : "=r" (res) : "r" (w)); - return res; -} - -static inline unsigned int hweight32(unsigned int w) -{ - unsigned int res; - - __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffffffff)); - return res; -} - -static inline unsigned int hweight16(unsigned int w) -{ - unsigned int res; - - __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffff)); - return res; -} - -static inline unsigned int hweight8(unsigned int w) -{ - unsigned int res; - - __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xff)); - return res; -} - -#else - -#include - -#endif -#include -#endif /* __KERNEL__ */ - -#include - -#ifdef __KERNEL__ - -#include - -#define ext2_set_bit_atomic(lock,nr,addr) \ - test_and_set_bit((nr) ^ 0x38,(unsigned long *)(addr)) -#define ext2_clear_bit_atomic(lock,nr,addr) \ - test_and_clear_bit((nr) ^ 0x38,(unsigned long *)(addr)) - -#include - -#endif /* __KERNEL__ */ - -#endif /* defined(_SPARC64_BITOPS_H) */ +#include diff --git a/include/asm-sparc64/cacheflush.h b/include/asm-sparc64/cacheflush.h index 122e4058dd9e..cf5b6b3e8a55 100644 --- a/include/asm-sparc64/cacheflush.h +++ b/include/asm-sparc64/cacheflush.h @@ -1,76 +1 @@ -#ifndef _SPARC64_CACHEFLUSH_H -#define _SPARC64_CACHEFLUSH_H - -#include - -#ifndef __ASSEMBLY__ - -#include - -/* Cache flush operations. */ - -/* These are the same regardless of whether this is an SMP kernel or not. */ -#define flush_cache_mm(__mm) \ - do { if ((__mm) == current->mm) flushw_user(); } while(0) -#define flush_cache_dup_mm(mm) flush_cache_mm(mm) -#define flush_cache_range(vma, start, end) \ - flush_cache_mm((vma)->vm_mm) -#define flush_cache_page(vma, page, pfn) \ - flush_cache_mm((vma)->vm_mm) - -/* - * On spitfire, the icache doesn't snoop local stores and we don't - * use block commit stores (which invalidate icache lines) during - * module load, so we need this. - */ -extern void flush_icache_range(unsigned long start, unsigned long end); -extern void __flush_icache_page(unsigned long); - -extern void __flush_dcache_page(void *addr, int flush_icache); -extern void flush_dcache_page_impl(struct page *page); -#ifdef CONFIG_SMP -extern void smp_flush_dcache_page_impl(struct page *page, int cpu); -extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page); -#else -#define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page) -#define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page) -#endif - -extern void __flush_dcache_range(unsigned long start, unsigned long end); -extern void flush_dcache_page(struct page *page); - -#define flush_icache_page(vma, pg) do { } while(0) -#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) - -extern void flush_ptrace_access(struct vm_area_struct *, struct page *, - unsigned long uaddr, void *kaddr, - unsigned long len, int write); - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page)); \ - memcpy(dst, src, len); \ - flush_ptrace_access(vma, page, vaddr, src, len, 0); \ - } while (0) - -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page)); \ - memcpy(dst, src, len); \ - flush_ptrace_access(vma, page, vaddr, dst, len, 1); \ - } while (0) - -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) - -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - -#ifdef CONFIG_DEBUG_PAGEALLOC -/* internal debugging function */ -void kernel_map_pages(struct page *page, int numpages, int enable); -#endif - -#endif /* !__ASSEMBLY__ */ - -#endif /* _SPARC64_CACHEFLUSH_H */ +#include diff --git a/include/asm-sparc64/checksum.h b/include/asm-sparc64/checksum.h index b290564c8ce0..c3966c5e29d8 100644 --- a/include/asm-sparc64/checksum.h +++ b/include/asm-sparc64/checksum.h @@ -1,167 +1 @@ -#ifndef __SPARC64_CHECKSUM_H -#define __SPARC64_CHECKSUM_H - -/* checksum.h: IP/UDP/TCP checksum routines on the V9. - * - * Copyright(C) 1995 Linus Torvalds - * Copyright(C) 1995 Miguel de Icaza - * Copyright(C) 1996 David S. Miller - * Copyright(C) 1996 Eddie C. Dost - * Copyright(C) 1997 Jakub Jelinek - * - * derived from: - * Alpha checksum c-code - * ix86 inline assembly - * RFC1071 Computing the Internet Checksum - */ - -#include -#include - -/* computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -extern __wsum csum_partial(const void * buff, int len, __wsum sum); - -/* the same as csum_partial, but copies from user space while it - * checksums - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum); - -extern long __csum_partial_copy_from_user(const void __user *src, - void *dst, int len, - __wsum sum); - -static inline __wsum -csum_partial_copy_from_user(const void __user *src, - void *dst, int len, - __wsum sum, int *err) -{ - long ret = __csum_partial_copy_from_user(src, dst, len, sum); - if (ret < 0) - *err = -EFAULT; - return (__force __wsum) ret; -} - -/* - * Copy and checksum to user - */ -#define HAVE_CSUM_COPY_USER -extern long __csum_partial_copy_to_user(const void *src, - void __user *dst, int len, - __wsum sum); - -static inline __wsum -csum_and_copy_to_user(const void *src, - void __user *dst, int len, - __wsum sum, int *err) -{ - long ret = __csum_partial_copy_to_user(src, dst, len, sum); - if (ret < 0) - *err = -EFAULT; - return (__force __wsum) ret; -} - -/* ihl is always 5 or greater, almost always is 5, and iph is word aligned - * the majority of the time. - */ -extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); - -/* Fold a partial checksum without adding pseudo headers. */ -static inline __sum16 csum_fold(__wsum sum) -{ - unsigned int tmp; - - __asm__ __volatile__( -" addcc %0, %1, %1\n" -" srl %1, 16, %1\n" -" addc %1, %%g0, %1\n" -" xnor %%g0, %1, %0\n" - : "=&r" (sum), "=r" (tmp) - : "0" (sum), "1" ((__force u32)sum<<16) - : "cc"); - return (__force __sum16)sum; -} - -static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned int len, - unsigned short proto, - __wsum sum) -{ - __asm__ __volatile__( -" addcc %1, %0, %0\n" -" addccc %2, %0, %0\n" -" addccc %3, %0, %0\n" -" addc %0, %%g0, %0\n" - : "=r" (sum), "=r" (saddr) - : "r" (daddr), "r" (proto + len), "0" (sum), "1" (saddr) - : "cc"); - return sum; -} - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); -} - -#define _HAVE_ARCH_IPV6_CSUM - -static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr, - const struct in6_addr *daddr, - __u32 len, unsigned short proto, - __wsum sum) -{ - __asm__ __volatile__ ( -" addcc %3, %4, %%g7\n" -" addccc %5, %%g7, %%g7\n" -" lduw [%2 + 0x0c], %%g2\n" -" lduw [%2 + 0x08], %%g3\n" -" addccc %%g2, %%g7, %%g7\n" -" lduw [%2 + 0x04], %%g2\n" -" addccc %%g3, %%g7, %%g7\n" -" lduw [%2 + 0x00], %%g3\n" -" addccc %%g2, %%g7, %%g7\n" -" lduw [%1 + 0x0c], %%g2\n" -" addccc %%g3, %%g7, %%g7\n" -" lduw [%1 + 0x08], %%g3\n" -" addccc %%g2, %%g7, %%g7\n" -" lduw [%1 + 0x04], %%g2\n" -" addccc %%g3, %%g7, %%g7\n" -" lduw [%1 + 0x00], %%g3\n" -" addccc %%g2, %%g7, %%g7\n" -" addccc %%g3, %%g7, %0\n" -" addc 0, %0, %0\n" - : "=&r" (sum) - : "r" (saddr), "r" (daddr), "r"(htonl(len)), - "r"(htonl(proto)), "r"(sum) - : "g2", "g3", "g7", "cc"); - - return csum_fold(sum); -} - -/* this routine is used for miscellaneous IP-like checksums, mainly in icmp.c */ -static inline __sum16 ip_compute_csum(const void *buff, int len) -{ - return csum_fold(csum_partial(buff, len, 0)); -} - -#endif /* !(__SPARC64_CHECKSUM_H) */ +#include diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h index 532975ecfe10..3220e134a579 100644 --- a/include/asm-sparc64/cpudata.h +++ b/include/asm-sparc64/cpudata.h @@ -1,240 +1 @@ -/* cpudata.h: Per-cpu parameters. - * - * Copyright (C) 2003, 2005, 2006 David S. Miller (davem@davemloft.net) - */ - -#ifndef _SPARC64_CPUDATA_H -#define _SPARC64_CPUDATA_H - -#include -#include - -#ifndef __ASSEMBLY__ - -#include -#include - -typedef struct { - /* Dcache line 1 */ - unsigned int __softirq_pending; /* must be 1st, see rtrap.S */ - unsigned int __pad0; - unsigned long clock_tick; /* %tick's per second */ - unsigned long __pad; - unsigned int __pad1; - unsigned int __pad2; - - /* Dcache line 2, rarely used */ - unsigned int dcache_size; - unsigned int dcache_line_size; - unsigned int icache_size; - unsigned int icache_line_size; - unsigned int ecache_size; - unsigned int ecache_line_size; - int core_id; - int proc_id; -} cpuinfo_sparc; - -DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data); -#define cpu_data(__cpu) per_cpu(__cpu_data, (__cpu)) -#define local_cpu_data() __get_cpu_var(__cpu_data) - -/* Trap handling code needs to get at a few critical values upon - * trap entry and to process TSB misses. These cannot be in the - * per_cpu() area as we really need to lock them into the TLB and - * thus make them part of the main kernel image. As a result we - * try to make this as small as possible. - * - * This is padded out and aligned to 64-bytes to avoid false sharing - * on SMP. - */ - -/* If you modify the size of this structure, please update - * TRAP_BLOCK_SZ_SHIFT below. - */ -struct thread_info; -struct trap_per_cpu { -/* D-cache line 1: Basic thread information, cpu and device mondo queues */ - struct thread_info *thread; - unsigned long pgd_paddr; - unsigned long cpu_mondo_pa; - unsigned long dev_mondo_pa; - -/* D-cache line 2: Error Mondo Queue and kernel buffer pointers */ - unsigned long resum_mondo_pa; - unsigned long resum_kernel_buf_pa; - unsigned long nonresum_mondo_pa; - unsigned long nonresum_kernel_buf_pa; - -/* Dcache lines 3, 4, 5, and 6: Hypervisor Fault Status */ - struct hv_fault_status fault_info; - -/* Dcache line 7: Physical addresses of CPU send mondo block and CPU list. */ - unsigned long cpu_mondo_block_pa; - unsigned long cpu_list_pa; - unsigned long tsb_huge; - unsigned long tsb_huge_temp; - -/* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size. */ - unsigned long irq_worklist_pa; - unsigned int cpu_mondo_qmask; - unsigned int dev_mondo_qmask; - unsigned int resum_qmask; - unsigned int nonresum_qmask; - void *hdesc; -} __attribute__((aligned(64))); -extern struct trap_per_cpu trap_block[NR_CPUS]; -extern void init_cur_cpu_trap(struct thread_info *); -extern void setup_tba(void); -extern int ncpus_probed; -extern void __init cpu_probe(void); -extern const struct seq_operations cpuinfo_op; - -extern unsigned long real_hard_smp_processor_id(void); - -struct cpuid_patch_entry { - unsigned int addr; - unsigned int cheetah_safari[4]; - unsigned int cheetah_jbus[4]; - unsigned int starfire[4]; - unsigned int sun4v[4]; -}; -extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end; - -struct sun4v_1insn_patch_entry { - unsigned int addr; - unsigned int insn; -}; -extern struct sun4v_1insn_patch_entry __sun4v_1insn_patch, - __sun4v_1insn_patch_end; - -struct sun4v_2insn_patch_entry { - unsigned int addr; - unsigned int insns[2]; -}; -extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch, - __sun4v_2insn_patch_end; - -#endif /* !(__ASSEMBLY__) */ - -#define TRAP_PER_CPU_THREAD 0x00 -#define TRAP_PER_CPU_PGD_PADDR 0x08 -#define TRAP_PER_CPU_CPU_MONDO_PA 0x10 -#define TRAP_PER_CPU_DEV_MONDO_PA 0x18 -#define TRAP_PER_CPU_RESUM_MONDO_PA 0x20 -#define TRAP_PER_CPU_RESUM_KBUF_PA 0x28 -#define TRAP_PER_CPU_NONRESUM_MONDO_PA 0x30 -#define TRAP_PER_CPU_NONRESUM_KBUF_PA 0x38 -#define TRAP_PER_CPU_FAULT_INFO 0x40 -#define TRAP_PER_CPU_CPU_MONDO_BLOCK_PA 0xc0 -#define TRAP_PER_CPU_CPU_LIST_PA 0xc8 -#define TRAP_PER_CPU_TSB_HUGE 0xd0 -#define TRAP_PER_CPU_TSB_HUGE_TEMP 0xd8 -#define TRAP_PER_CPU_IRQ_WORKLIST_PA 0xe0 -#define TRAP_PER_CPU_CPU_MONDO_QMASK 0xe8 -#define TRAP_PER_CPU_DEV_MONDO_QMASK 0xec -#define TRAP_PER_CPU_RESUM_QMASK 0xf0 -#define TRAP_PER_CPU_NONRESUM_QMASK 0xf4 - -#define TRAP_BLOCK_SZ_SHIFT 8 - -#include - -#define __GET_CPUID(REG) \ - /* Spitfire implementation (default). */ \ -661: ldxa [%g0] ASI_UPA_CONFIG, REG; \ - srlx REG, 17, REG; \ - and REG, 0x1f, REG; \ - nop; \ - .section .cpuid_patch, "ax"; \ - /* Instruction location. */ \ - .word 661b; \ - /* Cheetah Safari implementation. */ \ - ldxa [%g0] ASI_SAFARI_CONFIG, REG; \ - srlx REG, 17, REG; \ - and REG, 0x3ff, REG; \ - nop; \ - /* Cheetah JBUS implementation. */ \ - ldxa [%g0] ASI_JBUS_CONFIG, REG; \ - srlx REG, 17, REG; \ - and REG, 0x1f, REG; \ - nop; \ - /* Starfire implementation. */ \ - sethi %hi(0x1fff40000d0 >> 9), REG; \ - sllx REG, 9, REG; \ - or REG, 0xd0, REG; \ - lduwa [REG] ASI_PHYS_BYPASS_EC_E, REG;\ - /* sun4v implementation. */ \ - mov SCRATCHPAD_CPUID, REG; \ - ldxa [REG] ASI_SCRATCHPAD, REG; \ - nop; \ - nop; \ - .previous; - -#ifdef CONFIG_SMP - -#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - __GET_CPUID(TMP) \ - sethi %hi(trap_block), DEST; \ - sllx TMP, TRAP_BLOCK_SZ_SHIFT, TMP; \ - or DEST, %lo(trap_block), DEST; \ - add DEST, TMP, DEST; \ - -/* Clobbers TMP, current address space PGD phys address into DEST. */ -#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; - -/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ -#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; - -/* Clobbers TMP, loads DEST with current thread info pointer. */ -#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_THREAD], DEST; - -/* Given the current thread info pointer in THR, load the per-cpu - * area base of the current processor into DEST. REG1, REG2, and REG3 are - * clobbered. - * - * You absolutely cannot use DEST as a temporary in this code. The - * reason is that traps can happen during execution, and return from - * trap will load the fully resolved DEST per-cpu base. This can corrupt - * the calculations done by the macro mid-stream. - */ -#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) \ - lduh [THR + TI_CPU], REG1; \ - sethi %hi(__per_cpu_shift), REG3; \ - sethi %hi(__per_cpu_base), REG2; \ - ldx [REG3 + %lo(__per_cpu_shift)], REG3; \ - ldx [REG2 + %lo(__per_cpu_base)], REG2; \ - sllx REG1, REG3, REG3; \ - add REG3, REG2, DEST; - -#else - -#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - sethi %hi(trap_block), DEST; \ - or DEST, %lo(trap_block), DEST; \ - -/* Uniprocessor versions, we know the cpuid is zero. */ -#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; - -/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ -#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; - -#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_THREAD], DEST; - -/* No per-cpu areas on uniprocessor, so no need to load DEST. */ -#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) - -#endif /* !(CONFIG_SMP) */ - -#endif /* _SPARC64_CPUDATA_H */ +#include diff --git a/include/asm-sparc64/delay.h b/include/asm-sparc64/delay.h index a77aa622d762..33dc5589d841 100644 --- a/include/asm-sparc64/delay.h +++ b/include/asm-sparc64/delay.h @@ -1,17 +1 @@ -/* delay.h: Linux delay routines on sparc64. - * - * Copyright (C) 1996, 2004, 2007 David S. Miller (davem@davemloft.net). - */ - -#ifndef _SPARC64_DELAY_H -#define _SPARC64_DELAY_H - -#ifndef __ASSEMBLY__ - -extern void __delay(unsigned long loops); -extern void udelay(unsigned long usecs); -#define mdelay(n) udelay((n) * 1000) - -#endif /* !__ASSEMBLY__ */ - -#endif /* _SPARC64_DELAY_H */ +#include diff --git a/include/asm-sparc64/dma-mapping.h b/include/asm-sparc64/dma-mapping.h index 38cbec76a33f..380b7b63147f 100644 --- a/include/asm-sparc64/dma-mapping.h +++ b/include/asm-sparc64/dma-mapping.h @@ -1,154 +1 @@ -#ifndef _ASM_SPARC64_DMA_MAPPING_H -#define _ASM_SPARC64_DMA_MAPPING_H - -#include -#include - -#define DMA_ERROR_CODE (~(dma_addr_t)0x0) - -struct dma_ops { - void *(*alloc_coherent)(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); - void (*free_coherent)(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle); - dma_addr_t (*map_single)(struct device *dev, void *cpu_addr, - size_t size, - enum dma_data_direction direction); - void (*unmap_single)(struct device *dev, dma_addr_t dma_addr, - size_t size, - enum dma_data_direction direction); - int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction direction); - void (*unmap_sg)(struct device *dev, struct scatterlist *sg, - int nhwentries, - enum dma_data_direction direction); - void (*sync_single_for_cpu)(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction); - void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, - int nelems, - enum dma_data_direction direction); -}; -extern const struct dma_ops *dma_ops; - -extern int dma_supported(struct device *dev, u64 mask); -extern int dma_set_mask(struct device *dev, u64 dma_mask); - -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) -{ - return dma_ops->alloc_coherent(dev, size, dma_handle, flag); -} - -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) -{ - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); -} - -static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, - size_t size, - enum dma_data_direction direction) -{ - return dma_ops->map_single(dev, cpu_addr, size, direction); -} - -static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, - enum dma_data_direction direction) -{ - dma_ops->unmap_single(dev, dma_addr, size, direction); -} - -static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - return dma_ops->map_single(dev, page_address(page) + offset, - size, direction); -} - -static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, - size_t size, - enum dma_data_direction direction) -{ - dma_ops->unmap_single(dev, dma_address, size, direction); -} - -static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction) -{ - return dma_ops->map_sg(dev, sg, nents, direction); -} - -static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction) -{ - dma_ops->unmap_sg(dev, sg, nents, direction); -} - -static inline void dma_sync_single_for_cpu(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction); -} - -static inline void dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, - size_t size, - enum dma_data_direction direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -static inline void dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction) -{ - dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction); -} - -static inline void dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - - -static inline void dma_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction); -} - -static inline void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -static inline int dma_mapping_error(dma_addr_t dma_addr) -{ - return (dma_addr == DMA_ERROR_CODE); -} - -static inline int dma_get_cache_alignment(void) -{ - /* no easy way to get cache size on all processors, so return - * the maximum possible, to be safe */ - return (1 << INTERNODE_CACHE_SHIFT); -} - -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) -#define dma_is_consistent(d, h) (1) - -#endif /* _ASM_SPARC64_DMA_MAPPING_H */ +#include diff --git a/include/asm-sparc64/dma.h b/include/asm-sparc64/dma.h index 9d4c024bd3b3..2e36248e6b59 100644 --- a/include/asm-sparc64/dma.h +++ b/include/asm-sparc64/dma.h @@ -1,205 +1 @@ -/* - * include/asm-sparc64/dma.h - * - * Copyright 1996 (C) David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _ASM_SPARC64_DMA_H -#define _ASM_SPARC64_DMA_H - -#include -#include -#include - -#include -#include -#include - -/* These are irrelevant for Sparc DMA, but we leave it in so that - * things can compile. - */ -#define MAX_DMA_CHANNELS 8 -#define DMA_MODE_READ 1 -#define DMA_MODE_WRITE 2 -#define MAX_DMA_ADDRESS (~0UL) - -/* Useful constants */ -#define SIZE_16MB (16*1024*1024) -#define SIZE_64K (64*1024) - -/* SBUS DMA controller reg offsets */ -#define DMA_CSR 0x00UL /* rw DMA control/status register 0x00 */ -#define DMA_ADDR 0x04UL /* rw DMA transfer address register 0x04 */ -#define DMA_COUNT 0x08UL /* rw DMA transfer count register 0x08 */ -#define DMA_TEST 0x0cUL /* rw DMA test/debug register 0x0c */ - -/* DVMA chip revisions */ -enum dvma_rev { - dvmarev0, - dvmaesc1, - dvmarev1, - dvmarev2, - dvmarev3, - dvmarevplus, - dvmahme -}; - -#define DMA_HASCOUNT(rev) ((rev)==dvmaesc1) - -/* Linux DMA information structure, filled during probe. */ -struct sbus_dma { - struct sbus_dma *next; - struct sbus_dev *sdev; - void __iomem *regs; - - /* Status, misc info */ - int node; /* Prom node for this DMA device */ - int running; /* Are we doing DMA now? */ - int allocated; /* Are we "owned" by anyone yet? */ - - /* Transfer information. */ - u32 addr; /* Start address of current transfer */ - int nbytes; /* Size of current transfer */ - int realbytes; /* For splitting up large transfers, etc. */ - - /* DMA revision */ - enum dvma_rev revision; -}; - -extern struct sbus_dma *dma_chain; - -/* Broken hardware... */ -#define DMA_ISBROKEN(dma) ((dma)->revision == dvmarev1) -#define DMA_ISESC1(dma) ((dma)->revision == dvmaesc1) - -/* Main routines in dma.c */ -extern void dvma_init(struct sbus_bus *); - -/* Fields in the cond_reg register */ -/* First, the version identification bits */ -#define DMA_DEVICE_ID 0xf0000000 /* Device identification bits */ -#define DMA_VERS0 0x00000000 /* Sunray DMA version */ -#define DMA_ESCV1 0x40000000 /* DMA ESC Version 1 */ -#define DMA_VERS1 0x80000000 /* DMA rev 1 */ -#define DMA_VERS2 0xa0000000 /* DMA rev 2 */ -#define DMA_VERHME 0xb0000000 /* DMA hme gate array */ -#define DMA_VERSPLUS 0x90000000 /* DMA rev 1 PLUS */ - -#define DMA_HNDL_INTR 0x00000001 /* An IRQ needs to be handled */ -#define DMA_HNDL_ERROR 0x00000002 /* We need to take an error */ -#define DMA_FIFO_ISDRAIN 0x0000000c /* The DMA FIFO is draining */ -#define DMA_INT_ENAB 0x00000010 /* Turn on interrupts */ -#define DMA_FIFO_INV 0x00000020 /* Invalidate the FIFO */ -#define DMA_ACC_SZ_ERR 0x00000040 /* The access size was bad */ -#define DMA_FIFO_STDRAIN 0x00000040 /* DMA_VERS1 Drain the FIFO */ -#define DMA_RST_SCSI 0x00000080 /* Reset the SCSI controller */ -#define DMA_RST_ENET DMA_RST_SCSI /* Reset the ENET controller */ -#define DMA_ST_WRITE 0x00000100 /* write from device to memory */ -#define DMA_ENABLE 0x00000200 /* Fire up DMA, handle requests */ -#define DMA_PEND_READ 0x00000400 /* DMA_VERS1/0/PLUS Pending Read */ -#define DMA_ESC_BURST 0x00000800 /* 1=16byte 0=32byte */ -#define DMA_READ_AHEAD 0x00001800 /* DMA read ahead partial longword */ -#define DMA_DSBL_RD_DRN 0x00001000 /* No EC drain on slave reads */ -#define DMA_BCNT_ENAB 0x00002000 /* If on, use the byte counter */ -#define DMA_TERM_CNTR 0x00004000 /* Terminal counter */ -#define DMA_SCSI_SBUS64 0x00008000 /* HME: Enable 64-bit SBUS mode. */ -#define DMA_CSR_DISAB 0x00010000 /* No FIFO drains during csr */ -#define DMA_SCSI_DISAB 0x00020000 /* No FIFO drains during reg */ -#define DMA_DSBL_WR_INV 0x00020000 /* No EC inval. on slave writes */ -#define DMA_ADD_ENABLE 0x00040000 /* Special ESC DVMA optimization */ -#define DMA_E_BURSTS 0x000c0000 /* ENET: SBUS r/w burst mask */ -#define DMA_E_BURST32 0x00040000 /* ENET: SBUS 32 byte r/w burst */ -#define DMA_E_BURST16 0x00000000 /* ENET: SBUS 16 byte r/w burst */ -#define DMA_BRST_SZ 0x000c0000 /* SCSI: SBUS r/w burst size */ -#define DMA_BRST64 0x000c0000 /* SCSI: 64byte bursts (HME on UltraSparc only) */ -#define DMA_BRST32 0x00040000 /* SCSI: 32byte bursts */ -#define DMA_BRST16 0x00000000 /* SCSI: 16byte bursts */ -#define DMA_BRST0 0x00080000 /* SCSI: no bursts (non-HME gate arrays) */ -#define DMA_ADDR_DISAB 0x00100000 /* No FIFO drains during addr */ -#define DMA_2CLKS 0x00200000 /* Each transfer = 2 clock ticks */ -#define DMA_3CLKS 0x00400000 /* Each transfer = 3 clock ticks */ -#define DMA_EN_ENETAUI DMA_3CLKS /* Put lance into AUI-cable mode */ -#define DMA_CNTR_DISAB 0x00800000 /* No IRQ when DMA_TERM_CNTR set */ -#define DMA_AUTO_NADDR 0x01000000 /* Use "auto nxt addr" feature */ -#define DMA_SCSI_ON 0x02000000 /* Enable SCSI dma */ -#define DMA_PARITY_OFF 0x02000000 /* HME: disable parity checking */ -#define DMA_LOADED_ADDR 0x04000000 /* Address has been loaded */ -#define DMA_LOADED_NADDR 0x08000000 /* Next address has been loaded */ -#define DMA_RESET_FAS366 0x08000000 /* HME: Assert RESET to FAS366 */ - -/* Values describing the burst-size property from the PROM */ -#define DMA_BURST1 0x01 -#define DMA_BURST2 0x02 -#define DMA_BURST4 0x04 -#define DMA_BURST8 0x08 -#define DMA_BURST16 0x10 -#define DMA_BURST32 0x20 -#define DMA_BURST64 0x40 -#define DMA_BURSTBITS 0x7f - -/* Determine highest possible final transfer address given a base */ -#define DMA_MAXEND(addr) (0x01000000UL-(((unsigned long)(addr))&0x00ffffffUL)) - -/* Yes, I hack a lot of elisp in my spare time... */ -#define DMA_ERROR_P(regs) ((sbus_readl((regs) + DMA_CSR) & DMA_HNDL_ERROR)) -#define DMA_IRQ_P(regs) ((sbus_readl((regs) + DMA_CSR)) & (DMA_HNDL_INTR | DMA_HNDL_ERROR)) -#define DMA_WRITE_P(regs) ((sbus_readl((regs) + DMA_CSR) & DMA_ST_WRITE)) -#define DMA_OFF(__regs) \ -do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ - tmp &= ~DMA_ENABLE; \ - sbus_writel(tmp, (__regs) + DMA_CSR); \ -} while(0) -#define DMA_INTSOFF(__regs) \ -do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ - tmp &= ~DMA_INT_ENAB; \ - sbus_writel(tmp, (__regs) + DMA_CSR); \ -} while(0) -#define DMA_INTSON(__regs) \ -do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ - tmp |= DMA_INT_ENAB; \ - sbus_writel(tmp, (__regs) + DMA_CSR); \ -} while(0) -#define DMA_PUNTFIFO(__regs) \ -do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ - tmp |= DMA_FIFO_INV; \ - sbus_writel(tmp, (__regs) + DMA_CSR); \ -} while(0) -#define DMA_SETSTART(__regs, __addr) \ - sbus_writel((u32)(__addr), (__regs) + DMA_ADDR); -#define DMA_BEGINDMA_W(__regs) \ -do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ - tmp |= (DMA_ST_WRITE|DMA_ENABLE|DMA_INT_ENAB); \ - sbus_writel(tmp, (__regs) + DMA_CSR); \ -} while(0) -#define DMA_BEGINDMA_R(__regs) \ -do { u32 tmp = sbus_readl((__regs) + DMA_CSR); \ - tmp |= (DMA_ENABLE|DMA_INT_ENAB); \ - tmp &= ~DMA_ST_WRITE; \ - sbus_writel(tmp, (__regs) + DMA_CSR); \ -} while(0) - -/* For certain DMA chips, we need to disable ints upon irq entry - * and turn them back on when we are done. So in any ESP interrupt - * handler you *must* call DMA_IRQ_ENTRY upon entry and DMA_IRQ_EXIT - * when leaving the handler. You have been warned... - */ -#define DMA_IRQ_ENTRY(dma, dregs) do { \ - if(DMA_ISBROKEN(dma)) DMA_INTSOFF(dregs); \ - } while (0) - -#define DMA_IRQ_EXIT(dma, dregs) do { \ - if(DMA_ISBROKEN(dma)) DMA_INTSON(dregs); \ - } while(0) - -#define for_each_dvma(dma) \ - for((dma) = dma_chain; (dma); (dma) = (dma)->next) - -/* From PCI */ - -#ifdef CONFIG_PCI -extern int isa_dma_bridge_buggy; -#else -#define isa_dma_bridge_buggy (0) -#endif - -#endif /* !(_ASM_SPARC64_DMA_H) */ +#include diff --git a/include/asm-sparc64/ebus.h b/include/asm-sparc64/ebus.h index fcc62b97ced5..d7d476158bd5 100644 --- a/include/asm-sparc64/ebus.h +++ b/include/asm-sparc64/ebus.h @@ -1,94 +1 @@ -/* - * ebus.h: PCI to Ebus pseudo driver software state. - * - * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1999 David S. Miller (davem@redhat.com) - */ - -#ifndef __SPARC64_EBUS_H -#define __SPARC64_EBUS_H - -#include -#include -#include - -struct linux_ebus_child { - struct linux_ebus_child *next; - struct linux_ebus_device *parent; - struct linux_ebus *bus; - struct device_node *prom_node; - struct resource resource[PROMREG_MAX]; - int num_addrs; - unsigned int irqs[PROMINTR_MAX]; - int num_irqs; -}; - -struct linux_ebus_device { - struct of_device ofdev; - struct linux_ebus_device *next; - struct linux_ebus_child *children; - struct linux_ebus *bus; - struct device_node *prom_node; - struct resource resource[PROMREG_MAX]; - int num_addrs; - unsigned int irqs[PROMINTR_MAX]; - int num_irqs; -}; -#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev) - -struct linux_ebus { - struct of_device ofdev; - struct linux_ebus *next; - struct linux_ebus_device *devices; - struct pci_dev *self; - int index; - int is_rio; - struct device_node *prom_node; -}; -#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev) - -struct ebus_dma_info { - spinlock_t lock; - void __iomem *regs; - - unsigned int flags; -#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001 -#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002 - - /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is - * set. - */ - void (*callback)(struct ebus_dma_info *p, int event, void *cookie); - void *client_cookie; - unsigned int irq; -#define EBUS_DMA_EVENT_ERROR 1 -#define EBUS_DMA_EVENT_DMA 2 -#define EBUS_DMA_EVENT_DEVICE 4 - - unsigned char name[64]; -}; - -extern int ebus_dma_register(struct ebus_dma_info *p); -extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on); -extern void ebus_dma_unregister(struct ebus_dma_info *p); -extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, - size_t len); -extern void ebus_dma_prepare(struct ebus_dma_info *p, int write); -extern unsigned int ebus_dma_residue(struct ebus_dma_info *p); -extern unsigned int ebus_dma_addr(struct ebus_dma_info *p); -extern void ebus_dma_enable(struct ebus_dma_info *p, int on); - -extern struct linux_ebus *ebus_chain; - -extern void ebus_init(void); - -#define for_each_ebus(bus) \ - for((bus) = ebus_chain; (bus); (bus) = (bus)->next) - -#define for_each_ebusdev(dev, bus) \ - for((dev) = (bus)->devices; (dev); (dev) = (dev)->next) - -#define for_each_edevchild(dev, child) \ - for((child) = (dev)->children; (child); (child) = (child)->next) - -#endif /* !(__SPARC64_EBUS_H) */ +#include diff --git a/include/asm-sparc64/elf.h b/include/asm-sparc64/elf.h index 0818a1308f4e..f256d9472c82 100644 --- a/include/asm-sparc64/elf.h +++ b/include/asm-sparc64/elf.h @@ -1,217 +1 @@ -#ifndef __ASM_SPARC64_ELF_H -#define __ASM_SPARC64_ELF_H - -/* - * ELF register definitions.. - */ - -#include -#include -#include -#include - -/* - * Sparc section types - */ -#define STT_REGISTER 13 - -/* - * Sparc ELF relocation types - */ -#define R_SPARC_NONE 0 -#define R_SPARC_8 1 -#define R_SPARC_16 2 -#define R_SPARC_32 3 -#define R_SPARC_DISP8 4 -#define R_SPARC_DISP16 5 -#define R_SPARC_DISP32 6 -#define R_SPARC_WDISP30 7 -#define R_SPARC_WDISP22 8 -#define R_SPARC_HI22 9 -#define R_SPARC_22 10 -#define R_SPARC_13 11 -#define R_SPARC_LO10 12 -#define R_SPARC_GOT10 13 -#define R_SPARC_GOT13 14 -#define R_SPARC_GOT22 15 -#define R_SPARC_PC10 16 -#define R_SPARC_PC22 17 -#define R_SPARC_WPLT30 18 -#define R_SPARC_COPY 19 -#define R_SPARC_GLOB_DAT 20 -#define R_SPARC_JMP_SLOT 21 -#define R_SPARC_RELATIVE 22 -#define R_SPARC_UA32 23 -#define R_SPARC_PLT32 24 -#define R_SPARC_HIPLT22 25 -#define R_SPARC_LOPLT10 26 -#define R_SPARC_PCPLT32 27 -#define R_SPARC_PCPLT22 28 -#define R_SPARC_PCPLT10 29 -#define R_SPARC_10 30 -#define R_SPARC_11 31 -#define R_SPARC_64 32 -#define R_SPARC_OLO10 33 -#define R_SPARC_WDISP16 40 -#define R_SPARC_WDISP19 41 -#define R_SPARC_7 43 -#define R_SPARC_5 44 -#define R_SPARC_6 45 - -/* Bits present in AT_HWCAP, primarily for Sparc32. */ - -#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */ -#define HWCAP_SPARC_STBAR 2 -#define HWCAP_SPARC_SWAP 4 -#define HWCAP_SPARC_MULDIV 8 -#define HWCAP_SPARC_V9 16 -#define HWCAP_SPARC_ULTRA3 32 -#define HWCAP_SPARC_BLKINIT 64 -#define HWCAP_SPARC_N2 128 - -#define CORE_DUMP_USE_REGSET - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_ARCH EM_SPARCV9 -#define ELF_CLASS ELFCLASS64 -#define ELF_DATA ELFDATA2MSB - -/* Format of 64-bit elf_gregset_t is: - * G0 --> G7 - * O0 --> O7 - * L0 --> L7 - * I0 --> I7 - * TSTATE - * TPC - * TNPC - * Y - */ -typedef unsigned long elf_greg_t; -#define ELF_NGREG 36 -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct { - unsigned long pr_regs[32]; - unsigned long pr_fsr; - unsigned long pr_gsr; - unsigned long pr_fprs; -} elf_fpregset_t; - -/* Format of 32-bit elf_gregset_t is: - * G0 --> G7 - * O0 --> O7 - * L0 --> L7 - * I0 --> I7 - * PSR, PC, nPC, Y, WIM, TBR - */ -typedef unsigned int compat_elf_greg_t; -#define COMPAT_ELF_NGREG 38 -typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; - -typedef struct { - union { - unsigned int pr_regs[32]; - unsigned long pr_dregs[16]; - } pr_fr; - unsigned int __unused; - unsigned int pr_fsr; - unsigned char pr_qcnt; - unsigned char pr_q_entrysize; - unsigned char pr_en; - unsigned int pr_q[64]; -} compat_elf_fpregset_t; - -/* UltraSparc extensions. Still unused, but will be eventually. */ -typedef struct { - unsigned int pr_type; - unsigned int pr_align; - union { - struct { - union { - unsigned int pr_regs[32]; - unsigned long pr_dregs[16]; - long double pr_qregs[8]; - } pr_xfr; - } pr_v8p; - unsigned int pr_xfsr; - unsigned int pr_fprs; - unsigned int pr_xg[8]; - unsigned int pr_xo[8]; - unsigned long pr_tstate; - unsigned int pr_filler[8]; - } pr_un; -} elf_xregset_t; - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) -#define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \ - (x)->e_machine == EM_SPARC32PLUS) -#define compat_start_thread start_thread32 - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE PAGE_SIZE - -/* This is the location that an ET_DYN program is loaded if exec'ed. Typical - use of this is to invoke "./ld.so someprog" to test out a new version of - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -#define ELF_ET_DYN_BASE 0x0000010000000000UL -#define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL - - -/* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. */ - -/* On Ultra, we support all of the v8 capabilities. */ -static inline unsigned int sparc64_elf_hwcap(void) -{ - unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | - HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | - HWCAP_SPARC_V9); - - if (tlb_type == cheetah || tlb_type == cheetah_plus) - cap |= HWCAP_SPARC_ULTRA3; - else if (tlb_type == hypervisor) { - if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || - sun4v_chip_type == SUN4V_CHIP_NIAGARA2) - cap |= HWCAP_SPARC_BLKINIT; - if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2) - cap |= HWCAP_SPARC_N2; - } - - return cap; -} - -#define ELF_HWCAP sparc64_elf_hwcap(); - -/* This yields a string that ld.so will use to load implementation - specific libraries for optimization. This is more specific in - intent than poking at uname or /proc/cpuinfo. */ - -#define ELF_PLATFORM (NULL) - -#define SET_PERSONALITY(ex, ibcs2) \ -do { unsigned long new_flags = current_thread_info()->flags; \ - new_flags &= _TIF_32BIT; \ - if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ - new_flags |= _TIF_32BIT; \ - else \ - new_flags &= ~_TIF_32BIT; \ - if ((current_thread_info()->flags & _TIF_32BIT) \ - != new_flags) \ - set_thread_flag(TIF_ABI_PENDING); \ - else \ - clear_thread_flag(TIF_ABI_PENDING); \ - /* flush_thread will update pgd cache */ \ - if (ibcs2) \ - set_personality(PER_SVR4); \ - else if (current->personality != PER_LINUX32) \ - set_personality(PER_LINUX); \ -} while (0) - -#endif /* !(__ASM_SPARC64_ELF_H) */ +#include diff --git a/include/asm-sparc64/floppy.h b/include/asm-sparc64/floppy.h index ca19f80a9b7d..214878114436 100644 --- a/include/asm-sparc64/floppy.h +++ b/include/asm-sparc64/floppy.h @@ -1,782 +1 @@ -/* floppy.h: Sparc specific parts of the Floppy driver. - * - * Copyright (C) 1996, 2007 David S. Miller (davem@davemloft.net) - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * - * Ultra/PCI support added: Sep 1997 Eddie C. Dost (ecd@skynet.be) - */ - -#ifndef __ASM_SPARC64_FLOPPY_H -#define __ASM_SPARC64_FLOPPY_H - -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - - -/* - * Define this to enable exchanging drive 0 and 1 if only drive 1 is - * probed on PCI machines. - */ -#undef PCI_FDC_SWAP_DRIVES - - -/* References: - * 1) Netbsd Sun floppy driver. - * 2) NCR 82077 controller manual - * 3) Intel 82077 controller manual - */ -struct sun_flpy_controller { - volatile unsigned char status1_82077; /* Auxiliary Status reg. 1 */ - volatile unsigned char status2_82077; /* Auxiliary Status reg. 2 */ - volatile unsigned char dor_82077; /* Digital Output reg. */ - volatile unsigned char tapectl_82077; /* Tape Control reg */ - volatile unsigned char status_82077; /* Main Status Register. */ -#define drs_82077 status_82077 /* Digital Rate Select reg. */ - volatile unsigned char data_82077; /* Data fifo. */ - volatile unsigned char ___unused; - volatile unsigned char dir_82077; /* Digital Input reg. */ -#define dcr_82077 dir_82077 /* Config Control reg. */ -}; - -/* You'll only ever find one controller on an Ultra anyways. */ -static struct sun_flpy_controller *sun_fdc = (struct sun_flpy_controller *)-1; -unsigned long fdc_status; -static struct sbus_dev *floppy_sdev = NULL; - -struct sun_floppy_ops { - unsigned char (*fd_inb) (unsigned long port); - void (*fd_outb) (unsigned char value, unsigned long port); - void (*fd_enable_dma) (void); - void (*fd_disable_dma) (void); - void (*fd_set_dma_mode) (int); - void (*fd_set_dma_addr) (char *); - void (*fd_set_dma_count) (int); - unsigned int (*get_dma_residue) (void); - int (*fd_request_irq) (void); - void (*fd_free_irq) (void); - int (*fd_eject) (int); -}; - -static struct sun_floppy_ops sun_fdops; - -#define fd_inb(port) sun_fdops.fd_inb(port) -#define fd_outb(value,port) sun_fdops.fd_outb(value,port) -#define fd_enable_dma() sun_fdops.fd_enable_dma() -#define fd_disable_dma() sun_fdops.fd_disable_dma() -#define fd_request_dma() (0) /* nothing... */ -#define fd_free_dma() /* nothing... */ -#define fd_clear_dma_ff() /* nothing... */ -#define fd_set_dma_mode(mode) sun_fdops.fd_set_dma_mode(mode) -#define fd_set_dma_addr(addr) sun_fdops.fd_set_dma_addr(addr) -#define fd_set_dma_count(count) sun_fdops.fd_set_dma_count(count) -#define get_dma_residue(x) sun_fdops.get_dma_residue() -#define fd_cacheflush(addr, size) /* nothing... */ -#define fd_request_irq() sun_fdops.fd_request_irq() -#define fd_free_irq() sun_fdops.fd_free_irq() -#define fd_eject(drive) sun_fdops.fd_eject(drive) - -/* Super paranoid... */ -#undef HAVE_DISABLE_HLT - -static int sun_floppy_types[2] = { 0, 0 }; - -/* Here is where we catch the floppy driver trying to initialize, - * therefore this is where we call the PROM device tree probing - * routine etc. on the Sparc. - */ -#define FLOPPY0_TYPE sun_floppy_init() -#define FLOPPY1_TYPE sun_floppy_types[1] - -#define FDC1 ((unsigned long)sun_fdc) - -#define N_FDC 1 -#define N_DRIVE 8 - -/* No 64k boundary crossing problems on the Sparc. */ -#define CROSS_64KB(a,s) (0) - -static unsigned char sun_82077_fd_inb(unsigned long port) -{ - udelay(5); - switch(port & 7) { - default: - printk("floppy: Asked to read unknown port %lx\n", port); - panic("floppy: Port bolixed."); - case 4: /* FD_STATUS */ - return sbus_readb(&sun_fdc->status_82077) & ~STATUS_DMA; - case 5: /* FD_DATA */ - return sbus_readb(&sun_fdc->data_82077); - case 7: /* FD_DIR */ - /* XXX: Is DCL on 0x80 in sun4m? */ - return sbus_readb(&sun_fdc->dir_82077); - }; - panic("sun_82072_fd_inb: How did I get here?"); -} - -static void sun_82077_fd_outb(unsigned char value, unsigned long port) -{ - udelay(5); - switch(port & 7) { - default: - printk("floppy: Asked to write to unknown port %lx\n", port); - panic("floppy: Port bolixed."); - case 2: /* FD_DOR */ - /* Happily, the 82077 has a real DOR register. */ - sbus_writeb(value, &sun_fdc->dor_82077); - break; - case 5: /* FD_DATA */ - sbus_writeb(value, &sun_fdc->data_82077); - break; - case 7: /* FD_DCR */ - sbus_writeb(value, &sun_fdc->dcr_82077); - break; - case 4: /* FD_STATUS */ - sbus_writeb(value, &sun_fdc->status_82077); - break; - }; - return; -} - -/* For pseudo-dma (Sun floppy drives have no real DMA available to - * them so we must eat the data fifo bytes directly ourselves) we have - * three state variables. doing_pdma tells our inline low-level - * assembly floppy interrupt entry point whether it should sit and eat - * bytes from the fifo or just transfer control up to the higher level - * floppy interrupt c-code. I tried very hard but I could not get the - * pseudo-dma to work in c-code without getting many overruns and - * underruns. If non-zero, doing_pdma encodes the direction of - * the transfer for debugging. 1=read 2=write - */ -unsigned char *pdma_vaddr; -unsigned long pdma_size; -volatile int doing_pdma = 0; - -/* This is software state */ -char *pdma_base = NULL; -unsigned long pdma_areasize; - -/* Common routines to all controller types on the Sparc. */ -static void sun_fd_disable_dma(void) -{ - doing_pdma = 0; - if (pdma_base) { - mmu_unlockarea(pdma_base, pdma_areasize); - pdma_base = NULL; - } -} - -static void sun_fd_set_dma_mode(int mode) -{ - switch(mode) { - case DMA_MODE_READ: - doing_pdma = 1; - break; - case DMA_MODE_WRITE: - doing_pdma = 2; - break; - default: - printk("Unknown dma mode %d\n", mode); - panic("floppy: Giving up..."); - } -} - -static void sun_fd_set_dma_addr(char *buffer) -{ - pdma_vaddr = buffer; -} - -static void sun_fd_set_dma_count(int length) -{ - pdma_size = length; -} - -static void sun_fd_enable_dma(void) -{ - pdma_vaddr = mmu_lockarea(pdma_vaddr, pdma_size); - pdma_base = pdma_vaddr; - pdma_areasize = pdma_size; -} - -irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie) -{ - if (likely(doing_pdma)) { - void __iomem *stat = (void __iomem *) fdc_status; - unsigned char *vaddr = pdma_vaddr; - unsigned long size = pdma_size; - u8 val; - - while (size) { - val = readb(stat); - if (unlikely(!(val & 0x80))) { - pdma_vaddr = vaddr; - pdma_size = size; - return IRQ_HANDLED; - } - if (unlikely(!(val & 0x20))) { - pdma_vaddr = vaddr; - pdma_size = size; - doing_pdma = 0; - goto main_interrupt; - } - if (val & 0x40) { - /* read */ - *vaddr++ = readb(stat + 1); - } else { - unsigned char data = *vaddr++; - - /* write */ - writeb(data, stat + 1); - } - size--; - } - - pdma_vaddr = vaddr; - pdma_size = size; - - /* Send Terminal Count pulse to floppy controller. */ - val = readb(auxio_register); - val |= AUXIO_AUX1_FTCNT; - writeb(val, auxio_register); - val &= ~AUXIO_AUX1_FTCNT; - writeb(val, auxio_register); - - doing_pdma = 0; - } - -main_interrupt: - return floppy_interrupt(irq, dev_cookie); -} - -static int sun_fd_request_irq(void) -{ - static int once = 0; - int error; - - if(!once) { - once = 1; - - error = request_irq(FLOPPY_IRQ, sparc_floppy_irq, - IRQF_DISABLED, "floppy", NULL); - - return ((error == 0) ? 0 : -1); - } - return 0; -} - -static void sun_fd_free_irq(void) -{ -} - -static unsigned int sun_get_dma_residue(void) -{ - /* XXX This isn't really correct. XXX */ - return 0; -} - -static int sun_fd_eject(int drive) -{ - set_dor(0x00, 0xff, 0x90); - udelay(500); - set_dor(0x00, 0x6f, 0x00); - udelay(500); - return 0; -} - -#ifdef CONFIG_PCI -#include -#include - -static struct ebus_dma_info sun_pci_fd_ebus_dma; -static struct pci_dev *sun_pci_ebus_dev; -static int sun_pci_broken_drive = -1; - -struct sun_pci_dma_op { - unsigned int addr; - int len; - int direction; - char *buf; -}; -static struct sun_pci_dma_op sun_pci_dma_current = { -1U, 0, 0, NULL}; -static struct sun_pci_dma_op sun_pci_dma_pending = { -1U, 0, 0, NULL}; - -extern irqreturn_t floppy_interrupt(int irq, void *dev_id); - -static unsigned char sun_pci_fd_inb(unsigned long port) -{ - udelay(5); - return inb(port); -} - -static void sun_pci_fd_outb(unsigned char val, unsigned long port) -{ - udelay(5); - outb(val, port); -} - -static void sun_pci_fd_broken_outb(unsigned char val, unsigned long port) -{ - udelay(5); - /* - * XXX: Due to SUN's broken floppy connector on AX and AXi - * we need to turn on MOTOR_0 also, if the floppy is - * jumpered to DS1 (like most PC floppies are). I hope - * this does not hurt correct hardware like the AXmp. - * (Eddie, Sep 12 1998). - */ - if (port == ((unsigned long)sun_fdc) + 2) { - if (((val & 0x03) == sun_pci_broken_drive) && (val & 0x20)) { - val |= 0x10; - } - } - outb(val, port); -} - -#ifdef PCI_FDC_SWAP_DRIVES -static void sun_pci_fd_lde_broken_outb(unsigned char val, unsigned long port) -{ - udelay(5); - /* - * XXX: Due to SUN's broken floppy connector on AX and AXi - * we need to turn on MOTOR_0 also, if the floppy is - * jumpered to DS1 (like most PC floppies are). I hope - * this does not hurt correct hardware like the AXmp. - * (Eddie, Sep 12 1998). - */ - if (port == ((unsigned long)sun_fdc) + 2) { - if (((val & 0x03) == sun_pci_broken_drive) && (val & 0x10)) { - val &= ~(0x03); - val |= 0x21; - } - } - outb(val, port); -} -#endif /* PCI_FDC_SWAP_DRIVES */ - -static void sun_pci_fd_enable_dma(void) -{ - BUG_ON((NULL == sun_pci_dma_pending.buf) || - (0 == sun_pci_dma_pending.len) || - (0 == sun_pci_dma_pending.direction)); - - sun_pci_dma_current.buf = sun_pci_dma_pending.buf; - sun_pci_dma_current.len = sun_pci_dma_pending.len; - sun_pci_dma_current.direction = sun_pci_dma_pending.direction; - - sun_pci_dma_pending.buf = NULL; - sun_pci_dma_pending.len = 0; - sun_pci_dma_pending.direction = 0; - sun_pci_dma_pending.addr = -1U; - - sun_pci_dma_current.addr = - pci_map_single(sun_pci_ebus_dev, - sun_pci_dma_current.buf, - sun_pci_dma_current.len, - sun_pci_dma_current.direction); - - ebus_dma_enable(&sun_pci_fd_ebus_dma, 1); - - if (ebus_dma_request(&sun_pci_fd_ebus_dma, - sun_pci_dma_current.addr, - sun_pci_dma_current.len)) - BUG(); -} - -static void sun_pci_fd_disable_dma(void) -{ - ebus_dma_enable(&sun_pci_fd_ebus_dma, 0); - if (sun_pci_dma_current.addr != -1U) - pci_unmap_single(sun_pci_ebus_dev, - sun_pci_dma_current.addr, - sun_pci_dma_current.len, - sun_pci_dma_current.direction); - sun_pci_dma_current.addr = -1U; -} - -static void sun_pci_fd_set_dma_mode(int mode) -{ - if (mode == DMA_MODE_WRITE) - sun_pci_dma_pending.direction = PCI_DMA_TODEVICE; - else - sun_pci_dma_pending.direction = PCI_DMA_FROMDEVICE; - - ebus_dma_prepare(&sun_pci_fd_ebus_dma, mode != DMA_MODE_WRITE); -} - -static void sun_pci_fd_set_dma_count(int length) -{ - sun_pci_dma_pending.len = length; -} - -static void sun_pci_fd_set_dma_addr(char *buffer) -{ - sun_pci_dma_pending.buf = buffer; -} - -static unsigned int sun_pci_get_dma_residue(void) -{ - return ebus_dma_residue(&sun_pci_fd_ebus_dma); -} - -static int sun_pci_fd_request_irq(void) -{ - return ebus_dma_irq_enable(&sun_pci_fd_ebus_dma, 1); -} - -static void sun_pci_fd_free_irq(void) -{ - ebus_dma_irq_enable(&sun_pci_fd_ebus_dma, 0); -} - -static int sun_pci_fd_eject(int drive) -{ - return -EINVAL; -} - -void sun_pci_fd_dma_callback(struct ebus_dma_info *p, int event, void *cookie) -{ - floppy_interrupt(0, NULL); -} - -/* - * Floppy probing, we'd like to use /dev/fd0 for a single Floppy on PCI, - * even if this is configured using DS1, thus looks like /dev/fd1 with - * the cabling used in Ultras. - */ -#define DOR (port + 2) -#define MSR (port + 4) -#define FIFO (port + 5) - -static void sun_pci_fd_out_byte(unsigned long port, unsigned char val, - unsigned long reg) -{ - unsigned char status; - int timeout = 1000; - - while (!((status = inb(MSR)) & 0x80) && --timeout) - udelay(100); - outb(val, reg); -} - -static unsigned char sun_pci_fd_sensei(unsigned long port) -{ - unsigned char result[2] = { 0x70, 0x00 }; - unsigned char status; - int i = 0; - - sun_pci_fd_out_byte(port, 0x08, FIFO); - do { - int timeout = 1000; - - while (!((status = inb(MSR)) & 0x80) && --timeout) - udelay(100); - - if (!timeout) - break; - - if ((status & 0xf0) == 0xd0) - result[i++] = inb(FIFO); - else - break; - } while (i < 2); - - return result[0]; -} - -static void sun_pci_fd_reset(unsigned long port) -{ - unsigned char mask = 0x00; - unsigned char status; - int timeout = 10000; - - outb(0x80, MSR); - do { - status = sun_pci_fd_sensei(port); - if ((status & 0xc0) == 0xc0) - mask |= 1 << (status & 0x03); - else - udelay(100); - } while ((mask != 0x0f) && --timeout); -} - -static int sun_pci_fd_test_drive(unsigned long port, int drive) -{ - unsigned char status, data; - int timeout = 1000; - int ready; - - sun_pci_fd_reset(port); - - data = (0x10 << drive) | 0x0c | drive; - sun_pci_fd_out_byte(port, data, DOR); - - sun_pci_fd_out_byte(port, 0x07, FIFO); - sun_pci_fd_out_byte(port, drive & 0x03, FIFO); - - do { - udelay(100); - status = sun_pci_fd_sensei(port); - } while (((status & 0xc0) == 0x80) && --timeout); - - if (!timeout) - ready = 0; - else - ready = (status & 0x10) ? 0 : 1; - - sun_pci_fd_reset(port); - return ready; -} -#undef FIFO -#undef MSR -#undef DOR - -#endif /* CONFIG_PCI */ - -#ifdef CONFIG_PCI -static int __init ebus_fdthree_p(struct linux_ebus_device *edev) -{ - if (!strcmp(edev->prom_node->name, "fdthree")) - return 1; - if (!strcmp(edev->prom_node->name, "floppy")) { - const char *compat; - - compat = of_get_property(edev->prom_node, - "compatible", NULL); - if (compat && !strcmp(compat, "fdthree")) - return 1; - } - return 0; -} -#endif - -static unsigned long __init sun_floppy_init(void) -{ - char state[128]; - struct sbus_bus *bus; - struct sbus_dev *sdev = NULL; - static int initialized = 0; - - if (initialized) - return sun_floppy_types[0]; - initialized = 1; - - for_all_sbusdev (sdev, bus) { - if (!strcmp(sdev->prom_name, "SUNW,fdtwo")) - break; - } - if(sdev) { - floppy_sdev = sdev; - FLOPPY_IRQ = sdev->irqs[0]; - } else { -#ifdef CONFIG_PCI - struct linux_ebus *ebus; - struct linux_ebus_device *edev = NULL; - unsigned long config = 0; - void __iomem *auxio_reg; - const char *state_prop; - - for_each_ebus(ebus) { - for_each_ebusdev(edev, ebus) { - if (ebus_fdthree_p(edev)) - goto ebus_done; - } - } - ebus_done: - if (!edev) - return 0; - - state_prop = of_get_property(edev->prom_node, "status", NULL); - if (state_prop && !strncmp(state_prop, "disabled", 8)) - return 0; - - FLOPPY_IRQ = edev->irqs[0]; - - /* Make sure the high density bit is set, some systems - * (most notably Ultra5/Ultra10) come up with it clear. - */ - auxio_reg = (void __iomem *) edev->resource[2].start; - writel(readl(auxio_reg)|0x2, auxio_reg); - - sun_pci_ebus_dev = ebus->self; - - spin_lock_init(&sun_pci_fd_ebus_dma.lock); - - /* XXX ioremap */ - sun_pci_fd_ebus_dma.regs = (void __iomem *) - edev->resource[1].start; - if (!sun_pci_fd_ebus_dma.regs) - return 0; - - sun_pci_fd_ebus_dma.flags = (EBUS_DMA_FLAG_USE_EBDMA_HANDLER | - EBUS_DMA_FLAG_TCI_DISABLE); - sun_pci_fd_ebus_dma.callback = sun_pci_fd_dma_callback; - sun_pci_fd_ebus_dma.client_cookie = NULL; - sun_pci_fd_ebus_dma.irq = FLOPPY_IRQ; - strcpy(sun_pci_fd_ebus_dma.name, "floppy"); - if (ebus_dma_register(&sun_pci_fd_ebus_dma)) - return 0; - - /* XXX ioremap */ - sun_fdc = (struct sun_flpy_controller *)edev->resource[0].start; - - sun_fdops.fd_inb = sun_pci_fd_inb; - sun_fdops.fd_outb = sun_pci_fd_outb; - - can_use_virtual_dma = use_virtual_dma = 0; - sun_fdops.fd_enable_dma = sun_pci_fd_enable_dma; - sun_fdops.fd_disable_dma = sun_pci_fd_disable_dma; - sun_fdops.fd_set_dma_mode = sun_pci_fd_set_dma_mode; - sun_fdops.fd_set_dma_addr = sun_pci_fd_set_dma_addr; - sun_fdops.fd_set_dma_count = sun_pci_fd_set_dma_count; - sun_fdops.get_dma_residue = sun_pci_get_dma_residue; - - sun_fdops.fd_request_irq = sun_pci_fd_request_irq; - sun_fdops.fd_free_irq = sun_pci_fd_free_irq; - - sun_fdops.fd_eject = sun_pci_fd_eject; - - fdc_status = (unsigned long) &sun_fdc->status_82077; - - /* - * XXX: Find out on which machines this is really needed. - */ - if (1) { - sun_pci_broken_drive = 1; - sun_fdops.fd_outb = sun_pci_fd_broken_outb; - } - - allowed_drive_mask = 0; - if (sun_pci_fd_test_drive((unsigned long)sun_fdc, 0)) - sun_floppy_types[0] = 4; - if (sun_pci_fd_test_drive((unsigned long)sun_fdc, 1)) - sun_floppy_types[1] = 4; - - /* - * Find NS87303 SuperIO config registers (through ecpp). - */ - for_each_ebus(ebus) { - for_each_ebusdev(edev, ebus) { - if (!strcmp(edev->prom_node->name, "ecpp")) { - config = edev->resource[1].start; - goto config_done; - } - } - } - config_done: - - /* - * Sanity check, is this really the NS87303? - */ - switch (config & 0x3ff) { - case 0x02e: - case 0x15c: - case 0x26e: - case 0x398: - break; - default: - config = 0; - } - - if (!config) - return sun_floppy_types[0]; - - /* Enable PC-AT mode. */ - ns87303_modify(config, ASC, 0, 0xc0); - -#ifdef PCI_FDC_SWAP_DRIVES - /* - * If only Floppy 1 is present, swap drives. - */ - if (!sun_floppy_types[0] && sun_floppy_types[1]) { - /* - * Set the drive exchange bit in FCR on NS87303, - * make sure other bits are sane before doing so. - */ - ns87303_modify(config, FER, FER_EDM, 0); - ns87303_modify(config, ASC, ASC_DRV2_SEL, 0); - ns87303_modify(config, FCR, 0, FCR_LDE); - - config = sun_floppy_types[0]; - sun_floppy_types[0] = sun_floppy_types[1]; - sun_floppy_types[1] = config; - - if (sun_pci_broken_drive != -1) { - sun_pci_broken_drive = 1 - sun_pci_broken_drive; - sun_fdops.fd_outb = sun_pci_fd_lde_broken_outb; - } - } -#endif /* PCI_FDC_SWAP_DRIVES */ - - return sun_floppy_types[0]; -#else - return 0; -#endif - } - prom_getproperty(sdev->prom_node, "status", state, sizeof(state)); - if(!strncmp(state, "disabled", 8)) - return 0; - - /* - * We cannot do sbus_ioremap here: it does request_region, - * which the generic floppy driver tries to do once again. - * But we must use the sdev resource values as they have - * had parent ranges applied. - */ - sun_fdc = (struct sun_flpy_controller *) - (sdev->resource[0].start + - ((sdev->resource[0].flags & 0x1ffUL) << 32UL)); - - /* Last minute sanity check... */ - if(sbus_readb(&sun_fdc->status1_82077) == 0xff) { - sun_fdc = (struct sun_flpy_controller *)-1; - return 0; - } - - sun_fdops.fd_inb = sun_82077_fd_inb; - sun_fdops.fd_outb = sun_82077_fd_outb; - - can_use_virtual_dma = use_virtual_dma = 1; - sun_fdops.fd_enable_dma = sun_fd_enable_dma; - sun_fdops.fd_disable_dma = sun_fd_disable_dma; - sun_fdops.fd_set_dma_mode = sun_fd_set_dma_mode; - sun_fdops.fd_set_dma_addr = sun_fd_set_dma_addr; - sun_fdops.fd_set_dma_count = sun_fd_set_dma_count; - sun_fdops.get_dma_residue = sun_get_dma_residue; - - sun_fdops.fd_request_irq = sun_fd_request_irq; - sun_fdops.fd_free_irq = sun_fd_free_irq; - - sun_fdops.fd_eject = sun_fd_eject; - - fdc_status = (unsigned long) &sun_fdc->status_82077; - - /* Success... */ - allowed_drive_mask = 0x01; - sun_floppy_types[0] = 4; - sun_floppy_types[1] = 0; - - return sun_floppy_types[0]; -} - -#define EXTRA_FLOPPY_PARAMS - -static DEFINE_SPINLOCK(dma_spin_lock); - -#define claim_dma_lock() \ -({ unsigned long flags; \ - spin_lock_irqsave(&dma_spin_lock, flags); \ - flags; \ -}) - -#define release_dma_lock(__flags) \ - spin_unlock_irqrestore(&dma_spin_lock, __flags); - -#endif /* !(__ASM_SPARC64_FLOPPY_H) */ +#include diff --git a/include/asm-sparc64/futex.h b/include/asm-sparc64/futex.h index d8378935ae90..1ceb0bb2fe53 100644 --- a/include/asm-sparc64/futex.h +++ b/include/asm-sparc64/futex.h @@ -1,110 +1 @@ -#ifndef _SPARC64_FUTEX_H -#define _SPARC64_FUTEX_H - -#include -#include -#include -#include - -#define __futex_cas_op(insn, ret, oldval, uaddr, oparg) \ - __asm__ __volatile__( \ - "\n1: lduwa [%3] %%asi, %2\n" \ - " " insn "\n" \ - "2: casa [%3] %%asi, %2, %1\n" \ - " cmp %2, %1\n" \ - " bne,pn %%icc, 1b\n" \ - " mov 0, %0\n" \ - "3:\n" \ - " .section .fixup,#alloc,#execinstr\n" \ - " .align 4\n" \ - "4: sethi %%hi(3b), %0\n" \ - " jmpl %0 + %%lo(3b), %%g0\n" \ - " mov %5, %0\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .align 4\n" \ - " .word 1b, 4b\n" \ - " .word 2b, 4b\n" \ - " .previous\n" \ - : "=&r" (ret), "=&r" (oldval), "=&r" (tem) \ - : "r" (uaddr), "r" (oparg), "i" (-EFAULT) \ - : "memory") - -static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) -{ - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; - int oparg = (encoded_op << 8) >> 20; - int cmparg = (encoded_op << 20) >> 20; - int oldval = 0, ret, tem; - - if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))) - return -EFAULT; - if (unlikely((((unsigned long) uaddr) & 0x3UL))) - return -EINVAL; - - if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) - oparg = 1 << oparg; - - pagefault_disable(); - - switch (op) { - case FUTEX_OP_SET: - __futex_cas_op("mov\t%4, %1", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_ADD: - __futex_cas_op("add\t%2, %4, %1", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_OR: - __futex_cas_op("or\t%2, %4, %1", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_ANDN: - __futex_cas_op("and\t%2, %4, %1", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_XOR: - __futex_cas_op("xor\t%2, %4, %1", ret, oldval, uaddr, oparg); - break; - default: - ret = -ENOSYS; - } - - pagefault_enable(); - - if (!ret) { - switch (cmp) { - case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; - case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; - case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; - case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; - case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; - case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; - default: ret = -ENOSYS; - } - } - return ret; -} - -static inline int -futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) -{ - __asm__ __volatile__( - "\n1: casa [%3] %%asi, %2, %0\n" - "2:\n" - " .section .fixup,#alloc,#execinstr\n" - " .align 4\n" - "3: sethi %%hi(2b), %0\n" - " jmpl %0 + %%lo(2b), %%g0\n" - " mov %4, %0\n" - " .previous\n" - " .section __ex_table,\"a\"\n" - " .align 4\n" - " .word 1b, 3b\n" - " .previous\n" - : "=r" (newval) - : "0" (newval), "r" (oldval), "r" (uaddr), "i" (-EFAULT) - : "memory"); - - return newval; -} - -#endif /* !(_SPARC64_FUTEX_H) */ +#include diff --git a/include/asm-sparc64/hardirq.h b/include/asm-sparc64/hardirq.h index 7c29fd1a87aa..63dca3db11f3 100644 --- a/include/asm-sparc64/hardirq.h +++ b/include/asm-sparc64/hardirq.h @@ -1,19 +1 @@ -/* hardirq.h: 64-bit Sparc hard IRQ support. - * - * Copyright (C) 1997, 1998, 2005 David S. Miller (davem@davemloft.net) - */ - -#ifndef __SPARC64_HARDIRQ_H -#define __SPARC64_HARDIRQ_H - -#include - -#define __ARCH_IRQ_STAT -#define local_softirq_pending() \ - (local_cpu_data().__softirq_pending) - -void ack_bad_irq(unsigned int irq); - -#define HARDIRQ_BITS 8 - -#endif /* !(__SPARC64_HARDIRQ_H) */ +#include diff --git a/include/asm-sparc64/head.h b/include/asm-sparc64/head.h index 10e9dabc4c41..2254c09e53f9 100644 --- a/include/asm-sparc64/head.h +++ b/include/asm-sparc64/head.h @@ -1,76 +1 @@ -#ifndef _SPARC64_HEAD_H -#define _SPARC64_HEAD_H - -#include - - /* wrpr %g0, val, %gl */ -#define SET_GL(val) \ - .word 0xa1902000 | val - - /* rdpr %gl, %gN */ -#define GET_GL_GLOBAL(N) \ - .word 0x81540000 | (N << 25) - -#define KERNBASE 0x400000 - -#define PTREGS_OFF (STACK_BIAS + STACKFRAME_SZ) - -#define __CHEETAH_ID 0x003e0014 -#define __JALAPENO_ID 0x003e0016 -#define __SERRANO_ID 0x003e0022 - -#define CHEETAH_MANUF 0x003e -#define CHEETAH_IMPL 0x0014 /* Ultra-III */ -#define CHEETAH_PLUS_IMPL 0x0015 /* Ultra-III+ */ -#define JALAPENO_IMPL 0x0016 /* Ultra-IIIi */ -#define JAGUAR_IMPL 0x0018 /* Ultra-IV */ -#define PANTHER_IMPL 0x0019 /* Ultra-IV+ */ -#define SERRANO_IMPL 0x0022 /* Ultra-IIIi+ */ - -#define BRANCH_IF_SUN4V(tmp1,label) \ - sethi %hi(is_sun4v), %tmp1; \ - lduw [%tmp1 + %lo(is_sun4v)], %tmp1; \ - brnz,pn %tmp1, label; \ - nop - -#define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \ - rdpr %ver, %tmp1; \ - sethi %hi(__CHEETAH_ID), %tmp2; \ - srlx %tmp1, 32, %tmp1; \ - or %tmp2, %lo(__CHEETAH_ID), %tmp2;\ - cmp %tmp1, %tmp2; \ - be,pn %icc, label; \ - nop; - -#define BRANCH_IF_JALAPENO(tmp1,tmp2,label) \ - rdpr %ver, %tmp1; \ - sethi %hi(__JALAPENO_ID), %tmp2; \ - srlx %tmp1, 32, %tmp1; \ - or %tmp2, %lo(__JALAPENO_ID), %tmp2;\ - cmp %tmp1, %tmp2; \ - be,pn %icc, label; \ - nop; - -#define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label) \ - rdpr %ver, %tmp1; \ - srlx %tmp1, (32 + 16), %tmp2; \ - cmp %tmp2, CHEETAH_MANUF; \ - bne,pt %xcc, 99f; \ - sllx %tmp1, 16, %tmp1; \ - srlx %tmp1, (32 + 16), %tmp2; \ - cmp %tmp2, CHEETAH_PLUS_IMPL; \ - bgeu,pt %xcc, label; \ -99: nop; - -#define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label) \ - rdpr %ver, %tmp1; \ - srlx %tmp1, (32 + 16), %tmp2; \ - cmp %tmp2, CHEETAH_MANUF; \ - bne,pt %xcc, 99f; \ - sllx %tmp1, 16, %tmp1; \ - srlx %tmp1, (32 + 16), %tmp2; \ - cmp %tmp2, CHEETAH_IMPL; \ - bgeu,pt %xcc, label; \ -99: nop; - -#endif /* !(_SPARC64_HEAD_H) */ +#include diff --git a/include/asm-sparc64/ide.h b/include/asm-sparc64/ide.h index 1282676da1cd..7125317a428d 100644 --- a/include/asm-sparc64/ide.h +++ b/include/asm-sparc64/ide.h @@ -1,118 +1 @@ -/* - * ide.h: Ultra/PCI specific IDE glue. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - */ - -#ifndef _SPARC64_IDE_H -#define _SPARC64_IDE_H - -#ifdef __KERNEL__ - -#include -#include -#include -#include -#include - -#ifndef MAX_HWIFS -# ifdef CONFIG_BLK_DEV_IDEPCI -#define MAX_HWIFS 10 -# else -#define MAX_HWIFS 2 -# endif -#endif - -#define __ide_insl(data_reg, buffer, wcount) \ - __ide_insw(data_reg, buffer, (wcount)<<1) -#define __ide_outsl(data_reg, buffer, wcount) \ - __ide_outsw(data_reg, buffer, (wcount)<<1) - -/* On sparc64, I/O ports and MMIO registers are accessed identically. */ -#define __ide_mm_insw __ide_insw -#define __ide_mm_insl __ide_insl -#define __ide_mm_outsw __ide_outsw -#define __ide_mm_outsl __ide_outsl - -static inline unsigned int inw_be(void __iomem *addr) -{ - unsigned int ret; - - __asm__ __volatile__("lduha [%1] %2, %0" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline void __ide_insw(void __iomem *port, void *dst, u32 count) -{ -#ifdef DCACHE_ALIASING_POSSIBLE - unsigned long end = (unsigned long)dst + (count << 1); -#endif - u16 *ps = dst; - u32 *pi; - - if(((u64)ps) & 0x2) { - *ps++ = inw_be(port); - count--; - } - pi = (u32 *)ps; - while(count >= 2) { - u32 w; - - w = inw_be(port) << 16; - w |= inw_be(port); - *pi++ = w; - count -= 2; - } - ps = (u16 *)pi; - if(count) - *ps++ = inw_be(port); - -#ifdef DCACHE_ALIASING_POSSIBLE - __flush_dcache_range((unsigned long)dst, end); -#endif -} - -static inline void outw_be(unsigned short w, void __iomem *addr) -{ - __asm__ __volatile__("stha %0, [%1] %2" - : /* no outputs */ - : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static inline void __ide_outsw(void __iomem *port, void *src, u32 count) -{ -#ifdef DCACHE_ALIASING_POSSIBLE - unsigned long end = (unsigned long)src + (count << 1); -#endif - const u16 *ps = src; - const u32 *pi; - - if(((u64)src) & 0x2) { - outw_be(*ps++, port); - count--; - } - pi = (const u32 *)ps; - while(count >= 2) { - u32 w; - - w = *pi++; - outw_be((w >> 16), port); - outw_be(w, port); - count -= 2; - } - ps = (const u16 *)pi; - if(count) - outw_be(*ps, port); - -#ifdef DCACHE_ALIASING_POSSIBLE - __flush_dcache_range((unsigned long)src, end); -#endif -} - -#endif /* __KERNEL__ */ - -#endif /* _SPARC64_IDE_H */ +#include diff --git a/include/asm-sparc64/io.h b/include/asm-sparc64/io.h index 3158960f3eb5..25ff258dfd33 100644 --- a/include/asm-sparc64/io.h +++ b/include/asm-sparc64/io.h @@ -1,511 +1 @@ -#ifndef __SPARC64_IO_H -#define __SPARC64_IO_H - -#include -#include -#include - -#include /* IO address mapping routines need this */ -#include -#include - -/* PC crapola... */ -#define __SLOW_DOWN_IO do { } while (0) -#define SLOW_DOWN_IO do { } while (0) - -/* BIO layer definitions. */ -extern unsigned long kern_base, kern_size; -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define BIO_VMERGE_BOUNDARY 8192 - -static inline u8 _inb(unsigned long addr) -{ - u8 ret; - - __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_inb */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - - return ret; -} - -static inline u16 _inw(unsigned long addr) -{ - u16 ret; - - __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_inw */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - - return ret; -} - -static inline u32 _inl(unsigned long addr) -{ - u32 ret; - - __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - - return ret; -} - -static inline void _outb(u8 b, unsigned long addr) -{ - __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */" - : /* no outputs */ - : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); -} - -static inline void _outw(u16 w, unsigned long addr) -{ - __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */" - : /* no outputs */ - : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); -} - -static inline void _outl(u32 l, unsigned long addr) -{ - __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */" - : /* no outputs */ - : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); -} - -#define inb(__addr) (_inb((unsigned long)(__addr))) -#define inw(__addr) (_inw((unsigned long)(__addr))) -#define inl(__addr) (_inl((unsigned long)(__addr))) -#define outb(__b, __addr) (_outb((u8)(__b), (unsigned long)(__addr))) -#define outw(__w, __addr) (_outw((u16)(__w), (unsigned long)(__addr))) -#define outl(__l, __addr) (_outl((u32)(__l), (unsigned long)(__addr))) - -#define inb_p(__addr) inb(__addr) -#define outb_p(__b, __addr) outb(__b, __addr) -#define inw_p(__addr) inw(__addr) -#define outw_p(__w, __addr) outw(__w, __addr) -#define inl_p(__addr) inl(__addr) -#define outl_p(__l, __addr) outl(__l, __addr) - -extern void outsb(unsigned long, const void *, unsigned long); -extern void outsw(unsigned long, const void *, unsigned long); -extern void outsl(unsigned long, const void *, unsigned long); -extern void insb(unsigned long, void *, unsigned long); -extern void insw(unsigned long, void *, unsigned long); -extern void insl(unsigned long, void *, unsigned long); - -static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count) -{ - insb((unsigned long __force)port, buf, count); -} -static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count) -{ - insw((unsigned long __force)port, buf, count); -} - -static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count) -{ - insl((unsigned long __force)port, buf, count); -} - -static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count) -{ - outsb((unsigned long __force)port, buf, count); -} - -static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count) -{ - outsw((unsigned long __force)port, buf, count); -} - -static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count) -{ - outsl((unsigned long __force)port, buf, count); -} - -/* Memory functions, same as I/O accesses on Ultra. */ -static inline u8 _readb(const volatile void __iomem *addr) -{ u8 ret; - - __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - return ret; -} - -static inline u16 _readw(const volatile void __iomem *addr) -{ u16 ret; - - __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - - return ret; -} - -static inline u32 _readl(const volatile void __iomem *addr) -{ u32 ret; - - __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - - return ret; -} - -static inline u64 _readq(const volatile void __iomem *addr) -{ u64 ret; - - __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - - return ret; -} - -static inline void _writeb(u8 b, volatile void __iomem *addr) -{ - __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */" - : /* no outputs */ - : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); -} - -static inline void _writew(u16 w, volatile void __iomem *addr) -{ - __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */" - : /* no outputs */ - : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); -} - -static inline void _writel(u32 l, volatile void __iomem *addr) -{ - __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */" - : /* no outputs */ - : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); -} - -static inline void _writeq(u64 q, volatile void __iomem *addr) -{ - __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */" - : /* no outputs */ - : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); -} - -#define readb(__addr) _readb(__addr) -#define readw(__addr) _readw(__addr) -#define readl(__addr) _readl(__addr) -#define readq(__addr) _readq(__addr) -#define readb_relaxed(__addr) _readb(__addr) -#define readw_relaxed(__addr) _readw(__addr) -#define readl_relaxed(__addr) _readl(__addr) -#define readq_relaxed(__addr) _readq(__addr) -#define writeb(__b, __addr) _writeb(__b, __addr) -#define writew(__w, __addr) _writew(__w, __addr) -#define writel(__l, __addr) _writel(__l, __addr) -#define writeq(__q, __addr) _writeq(__q, __addr) - -/* Now versions without byte-swapping. */ -static inline u8 _raw_readb(unsigned long addr) -{ - u8 ret; - - __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_raw_readb */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline u16 _raw_readw(unsigned long addr) -{ - u16 ret; - - __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_raw_readw */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline u32 _raw_readl(unsigned long addr) -{ - u32 ret; - - __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_raw_readl */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline u64 _raw_readq(unsigned long addr) -{ - u64 ret; - - __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_raw_readq */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - -static inline void _raw_writeb(u8 b, unsigned long addr) -{ - __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_raw_writeb */" - : /* no outputs */ - : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static inline void _raw_writew(u16 w, unsigned long addr) -{ - __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_raw_writew */" - : /* no outputs */ - : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static inline void _raw_writel(u32 l, unsigned long addr) -{ - __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_raw_writel */" - : /* no outputs */ - : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static inline void _raw_writeq(u64 q, unsigned long addr) -{ - __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_raw_writeq */" - : /* no outputs */ - : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -#define __raw_readb(__addr) (_raw_readb((unsigned long)(__addr))) -#define __raw_readw(__addr) (_raw_readw((unsigned long)(__addr))) -#define __raw_readl(__addr) (_raw_readl((unsigned long)(__addr))) -#define __raw_readq(__addr) (_raw_readq((unsigned long)(__addr))) -#define __raw_writeb(__b, __addr) (_raw_writeb((u8)(__b), (unsigned long)(__addr))) -#define __raw_writew(__w, __addr) (_raw_writew((u16)(__w), (unsigned long)(__addr))) -#define __raw_writel(__l, __addr) (_raw_writel((u32)(__l), (unsigned long)(__addr))) -#define __raw_writeq(__q, __addr) (_raw_writeq((u64)(__q), (unsigned long)(__addr))) - -/* Valid I/O Space regions are anywhere, because each PCI bus supported - * can live in an arbitrary area of the physical address range. - */ -#define IO_SPACE_LIMIT 0xffffffffffffffffUL - -/* Now, SBUS variants, only difference from PCI is that we do - * not use little-endian ASIs. - */ -static inline u8 _sbus_readb(const volatile void __iomem *addr) -{ - u8 ret; - - __asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); - - return ret; -} - -static inline u16 _sbus_readw(const volatile void __iomem *addr) -{ - u16 ret; - - __asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); - - return ret; -} - -static inline u32 _sbus_readl(const volatile void __iomem *addr) -{ - u32 ret; - - __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); - - return ret; -} - -static inline u64 _sbus_readq(const volatile void __iomem *addr) -{ - u64 ret; - - __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); - - return ret; -} - -static inline void _sbus_writeb(u8 b, volatile void __iomem *addr) -{ - __asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */" - : /* no outputs */ - : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); -} - -static inline void _sbus_writew(u16 w, volatile void __iomem *addr) -{ - __asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */" - : /* no outputs */ - : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); -} - -static inline void _sbus_writel(u32 l, volatile void __iomem *addr) -{ - __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */" - : /* no outputs */ - : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); -} - -static inline void _sbus_writeq(u64 l, volatile void __iomem *addr) -{ - __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */" - : /* no outputs */ - : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); -} - -#define sbus_readb(__addr) _sbus_readb(__addr) -#define sbus_readw(__addr) _sbus_readw(__addr) -#define sbus_readl(__addr) _sbus_readl(__addr) -#define sbus_readq(__addr) _sbus_readq(__addr) -#define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr) -#define sbus_writew(__w, __addr) _sbus_writew(__w, __addr) -#define sbus_writel(__l, __addr) _sbus_writel(__l, __addr) -#define sbus_writeq(__l, __addr) _sbus_writeq(__l, __addr) - -static inline void _sbus_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) -{ - while(n--) { - sbus_writeb(c, dst); - dst++; - } -} - -#define sbus_memset_io(d,c,sz) _sbus_memset_io(d,c,sz) - -static inline void -_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) -{ - volatile void __iomem *d = dst; - - while (n--) { - writeb(c, d); - d++; - } -} - -#define memset_io(d,c,sz) _memset_io(d,c,sz) - -static inline void -_memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n) -{ - char *d = dst; - - while (n--) { - char tmp = readb(src); - *d++ = tmp; - src++; - } -} - -#define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz) - -static inline void -_memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n) -{ - const char *s = src; - volatile void __iomem *d = dst; - - while (n--) { - char tmp = *s++; - writeb(tmp, d); - d++; - } -} - -#define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz) - -#define mmiowb() - -#ifdef __KERNEL__ - -/* On sparc64 we have the whole physical IO address space accessible - * using physically addressed loads and stores, so this does nothing. - */ -static inline void __iomem *ioremap(unsigned long offset, unsigned long size) -{ - return (void __iomem *)offset; -} - -#define ioremap_nocache(X,Y) ioremap((X),(Y)) - -static inline void iounmap(volatile void __iomem *addr) -{ -} - -#define ioread8(X) readb(X) -#define ioread16(X) readw(X) -#define ioread32(X) readl(X) -#define iowrite8(val,X) writeb(val,X) -#define iowrite16(val,X) writew(val,X) -#define iowrite32(val,X) writel(val,X) - -/* Create a virtual mapping cookie for an IO port range */ -extern void __iomem *ioport_map(unsigned long port, unsigned int nr); -extern void ioport_unmap(void __iomem *); - -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ -struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); -extern void pci_iounmap(struct pci_dev *dev, void __iomem *); - -/* Similarly for SBUS. */ -#define sbus_ioremap(__res, __offset, __size, __name) \ -({ unsigned long __ret; \ - __ret = (__res)->start + (((__res)->flags & 0x1ffUL) << 32UL); \ - __ret += (unsigned long) (__offset); \ - if (! request_region((__ret), (__size), (__name))) \ - __ret = 0UL; \ - (void __iomem *) __ret; \ -}) - -#define sbus_iounmap(__addr, __size) \ - release_region((unsigned long)(__addr), (__size)) - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -#endif - -#endif /* !(__SPARC64_IO_H) */ +#include diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h index d7b9afcba08b..76252bb85e97 100644 --- a/include/asm-sparc64/iommu.h +++ b/include/asm-sparc64/iommu.h @@ -1,62 +1 @@ -/* iommu.h: Definitions for the sun5 IOMMU. - * - * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net) - */ -#ifndef _SPARC64_IOMMU_H -#define _SPARC64_IOMMU_H - -/* The format of an iopte in the page tables. */ -#define IOPTE_VALID 0x8000000000000000UL -#define IOPTE_64K 0x2000000000000000UL -#define IOPTE_STBUF 0x1000000000000000UL -#define IOPTE_INTRA 0x0800000000000000UL -#define IOPTE_CONTEXT 0x07ff800000000000UL -#define IOPTE_PAGE 0x00007fffffffe000UL -#define IOPTE_CACHE 0x0000000000000010UL -#define IOPTE_WRITE 0x0000000000000002UL - -#define IOMMU_NUM_CTXS 4096 - -struct iommu_arena { - unsigned long *map; - unsigned int hint; - unsigned int limit; -}; - -struct iommu { - spinlock_t lock; - struct iommu_arena arena; - void (*flush_all)(struct iommu *); - iopte_t *page_table; - u32 page_table_map_base; - unsigned long iommu_control; - unsigned long iommu_tsbbase; - unsigned long iommu_flush; - unsigned long iommu_flushinv; - unsigned long iommu_tags; - unsigned long iommu_ctxflush; - unsigned long write_complete_reg; - unsigned long dummy_page; - unsigned long dummy_page_pa; - unsigned long ctx_lowest_free; - DECLARE_BITMAP(ctx_bitmap, IOMMU_NUM_CTXS); - u32 dma_addr_mask; -}; - -struct strbuf { - int strbuf_enabled; - unsigned long strbuf_control; - unsigned long strbuf_pflush; - unsigned long strbuf_fsync; - unsigned long strbuf_ctxflush; - unsigned long strbuf_ctxmatch_base; - unsigned long strbuf_flushflag_pa; - volatile unsigned long *strbuf_flushflag; - volatile unsigned long __flushflag_buf[(64+(64-1)) / sizeof(long)]; -}; - -extern int iommu_table_init(struct iommu *iommu, int tsbsize, - u32 dma_offset, u32 dma_addr_mask, - int numa_node); - -#endif /* !(_SPARC64_IOMMU_H) */ +#include diff --git a/include/asm-sparc64/ipcbuf.h b/include/asm-sparc64/ipcbuf.h index 9c5bf1bc423f..41dfaf1149b5 100644 --- a/include/asm-sparc64/ipcbuf.h +++ b/include/asm-sparc64/ipcbuf.h @@ -1,28 +1 @@ -#ifndef _SPARC64_IPCBUF_H -#define _SPARC64_IPCBUF_H - -/* - * The ipc64_perm structure for sparc64 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 32-bit seq - * - 2 miscellaneous 64-bit values - */ - -struct ipc64_perm -{ - __kernel_key_t key; - __kernel_uid_t uid; - __kernel_gid_t gid; - __kernel_uid_t cuid; - __kernel_gid_t cgid; - __kernel_mode_t mode; - unsigned short __pad1; - unsigned short seq; - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _SPARC64_IPCBUF_H */ +#include diff --git a/include/asm-sparc64/irq.h b/include/asm-sparc64/irq.h index 0bb9bf531745..b2102e65947c 100644 --- a/include/asm-sparc64/irq.h +++ b/include/asm-sparc64/irq.h @@ -1,93 +1 @@ -/* irq.h: IRQ registers on the 64-bit Sparc. - * - * Copyright (C) 1996 David S. Miller (davem@davemloft.net) - * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) - */ - -#ifndef _SPARC64_IRQ_H -#define _SPARC64_IRQ_H - -#include -#include -#include -#include -#include -#include - -/* IMAP/ICLR register defines */ -#define IMAP_VALID 0x80000000UL /* IRQ Enabled */ -#define IMAP_TID_UPA 0x7c000000UL /* UPA TargetID */ -#define IMAP_TID_JBUS 0x7c000000UL /* JBUS TargetID */ -#define IMAP_TID_SHIFT 26 -#define IMAP_AID_SAFARI 0x7c000000UL /* Safari AgentID */ -#define IMAP_AID_SHIFT 26 -#define IMAP_NID_SAFARI 0x03e00000UL /* Safari NodeID */ -#define IMAP_NID_SHIFT 21 -#define IMAP_IGN 0x000007c0UL /* IRQ Group Number */ -#define IMAP_INO 0x0000003fUL /* IRQ Number */ -#define IMAP_INR 0x000007ffUL /* Full interrupt number*/ - -#define ICLR_IDLE 0x00000000UL /* Idle state */ -#define ICLR_TRANSMIT 0x00000001UL /* Transmit state */ -#define ICLR_PENDING 0x00000003UL /* Pending state */ - -/* The largest number of unique interrupt sources we support. - * If this needs to ever be larger than 255, you need to change - * the type of ino_bucket->virt_irq as appropriate. - * - * ino_bucket->virt_irq allocation is made during {sun4v_,}build_irq(). - */ -#define NR_IRQS 255 - -extern void irq_install_pre_handler(int virt_irq, - void (*func)(unsigned int, void *, void *), - void *arg1, void *arg2); -#define irq_canonicalize(irq) (irq) -extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap); -extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino); -extern unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino); -extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p, - unsigned int msi_devino_start, - unsigned int msi_devino_end); -extern void sun4v_destroy_msi(unsigned int virt_irq); -extern unsigned int sun4u_build_msi(u32 portid, unsigned int *virt_irq_p, - unsigned int msi_devino_start, - unsigned int msi_devino_end, - unsigned long imap_base, - unsigned long iclr_base); -extern void sun4u_destroy_msi(unsigned int virt_irq); -extern unsigned int sbus_build_irq(void *sbus, unsigned int ino); - -extern unsigned char virt_irq_alloc(unsigned int dev_handle, - unsigned int dev_ino); -#ifdef CONFIG_PCI_MSI -extern void virt_irq_free(unsigned int virt_irq); -#endif - -extern void __init init_IRQ(void); -extern void fixup_irqs(void); - -static inline void set_softint(unsigned long bits) -{ - __asm__ __volatile__("wr %0, 0x0, %%set_softint" - : /* No outputs */ - : "r" (bits)); -} - -static inline void clear_softint(unsigned long bits) -{ - __asm__ __volatile__("wr %0, 0x0, %%clear_softint" - : /* No outputs */ - : "r" (bits)); -} - -static inline unsigned long get_softint(void) -{ - unsigned long retval; - - __asm__ __volatile__("rd %%softint, %0" - : "=r" (retval)); - return retval; -} - -#endif +#include diff --git a/include/asm-sparc64/irqflags.h b/include/asm-sparc64/irqflags.h index 024fc54d0682..27b091fc3fa0 100644 --- a/include/asm-sparc64/irqflags.h +++ b/include/asm-sparc64/irqflags.h @@ -1,89 +1 @@ -/* - * include/asm-sparc64/irqflags.h - * - * IRQ flags handling - * - * This file gets included from lowlevel asm headers too, to provide - * wrapped versions of the local_irq_*() APIs, based on the - * raw_local_irq_*() functions from the lowlevel headers. - */ -#ifndef _ASM_IRQFLAGS_H -#define _ASM_IRQFLAGS_H - -#ifndef __ASSEMBLY__ - -static inline unsigned long __raw_local_save_flags(void) -{ - unsigned long flags; - - __asm__ __volatile__( - "rdpr %%pil, %0" - : "=r" (flags) - ); - - return flags; -} - -#define raw_local_save_flags(flags) \ - do { (flags) = __raw_local_save_flags(); } while (0) - -static inline void raw_local_irq_restore(unsigned long flags) -{ - __asm__ __volatile__( - "wrpr %0, %%pil" - : /* no output */ - : "r" (flags) - : "memory" - ); -} - -static inline void raw_local_irq_disable(void) -{ - __asm__ __volatile__( - "wrpr 15, %%pil" - : /* no outputs */ - : /* no inputs */ - : "memory" - ); -} - -static inline void raw_local_irq_enable(void) -{ - __asm__ __volatile__( - "wrpr 0, %%pil" - : /* no outputs */ - : /* no inputs */ - : "memory" - ); -} - -static inline int raw_irqs_disabled_flags(unsigned long flags) -{ - return (flags > 0); -} - -static inline int raw_irqs_disabled(void) -{ - unsigned long flags = __raw_local_save_flags(); - - return raw_irqs_disabled_flags(flags); -} - -/* - * For spinlocks, etc: - */ -static inline unsigned long __raw_local_irq_save(void) -{ - unsigned long flags = __raw_local_save_flags(); - - raw_local_irq_disable(); - - return flags; -} - -#define raw_local_irq_save(flags) \ - do { (flags) = __raw_local_irq_save(); } while (0) - -#endif /* (__ASSEMBLY__) */ - -#endif /* !(_ASM_IRQFLAGS_H) */ +#include diff --git a/include/asm-sparc64/kdebug.h b/include/asm-sparc64/kdebug.h index f905b773235a..78cfd5d2749b 100644 --- a/include/asm-sparc64/kdebug.h +++ b/include/asm-sparc64/kdebug.h @@ -1,19 +1 @@ -#ifndef _SPARC64_KDEBUG_H -#define _SPARC64_KDEBUG_H - -struct pt_regs; - -extern void bad_trap(struct pt_regs *, long); - -/* Grossly misnamed. */ -enum die_val { - DIE_OOPS = 1, - DIE_DEBUG, /* ta 0x70 */ - DIE_DEBUG_2, /* ta 0x71 */ - DIE_DIE, - DIE_TRAP, - DIE_TRAP_TL1, - DIE_CALL, -}; - -#endif +#include diff --git a/include/asm-sparc64/mc146818rtc.h b/include/asm-sparc64/mc146818rtc.h index e9c0fcc25c6f..97842e6ed1c2 100644 --- a/include/asm-sparc64/mc146818rtc.h +++ b/include/asm-sparc64/mc146818rtc.h @@ -1,34 +1 @@ -/* - * Machine dependent access functions for RTC registers. - */ -#ifndef __ASM_SPARC64_MC146818RTC_H -#define __ASM_SPARC64_MC146818RTC_H - -#include - -#ifndef RTC_PORT -#ifdef CONFIG_PCI -extern unsigned long ds1287_regs; -#else -#define ds1287_regs (0UL) -#endif -#define RTC_PORT(x) (ds1287_regs + (x)) -#define RTC_ALWAYS_BCD 0 -#endif - -/* - * The yet supported machines all access the RTC index register via - * an ISA port access but the way to access the date register differs ... - */ -#define CMOS_READ(addr) ({ \ -outb_p((addr),RTC_PORT(0)); \ -inb_p(RTC_PORT(1)); \ -}) -#define CMOS_WRITE(val, addr) ({ \ -outb_p((addr),RTC_PORT(0)); \ -outb_p((val),RTC_PORT(1)); \ -}) - -#define RTC_IRQ 8 - -#endif /* __ASM_SPARC64_MC146818RTC_H */ +#include diff --git a/include/asm-sparc64/mmu.h b/include/asm-sparc64/mmu.h index 8abc58f0f9d7..e677a64d8db1 100644 --- a/include/asm-sparc64/mmu.h +++ b/include/asm-sparc64/mmu.h @@ -1,127 +1 @@ -#ifndef __MMU_H -#define __MMU_H - -#include -#include -#include - -#define CTX_NR_BITS 13 - -#define TAG_CONTEXT_BITS ((_AC(1,UL) << CTX_NR_BITS) - _AC(1,UL)) - -/* UltraSPARC-III+ and later have a feature whereby you can - * select what page size the various Data-TLB instances in the - * chip. In order to gracefully support this, we put the version - * field in a spot outside of the areas of the context register - * where this parameter is specified. - */ -#define CTX_VERSION_SHIFT 22 -#define CTX_VERSION_MASK ((~0UL) << CTX_VERSION_SHIFT) - -#define CTX_PGSZ_8KB _AC(0x0,UL) -#define CTX_PGSZ_64KB _AC(0x1,UL) -#define CTX_PGSZ_512KB _AC(0x2,UL) -#define CTX_PGSZ_4MB _AC(0x3,UL) -#define CTX_PGSZ_BITS _AC(0x7,UL) -#define CTX_PGSZ0_NUC_SHIFT 61 -#define CTX_PGSZ1_NUC_SHIFT 58 -#define CTX_PGSZ0_SHIFT 16 -#define CTX_PGSZ1_SHIFT 19 -#define CTX_PGSZ_MASK ((CTX_PGSZ_BITS << CTX_PGSZ0_SHIFT) | \ - (CTX_PGSZ_BITS << CTX_PGSZ1_SHIFT)) - -#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB) -#define CTX_PGSZ_BASE CTX_PGSZ_8KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) -#define CTX_PGSZ_BASE CTX_PGSZ_64KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) -#define CTX_PGSZ_BASE CTX_PGSZ_512KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) -#define CTX_PGSZ_BASE CTX_PGSZ_4MB -#else -#error No page size specified in kernel configuration -#endif - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) -#define CTX_PGSZ_HUGE CTX_PGSZ_4MB -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) -#define CTX_PGSZ_HUGE CTX_PGSZ_512KB -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -#define CTX_PGSZ_HUGE CTX_PGSZ_64KB -#endif - -#define CTX_PGSZ_KERN CTX_PGSZ_4MB - -/* Thus, when running on UltraSPARC-III+ and later, we use the following - * PRIMARY_CONTEXT register values for the kernel context. - */ -#define CTX_CHEETAH_PLUS_NUC \ - ((CTX_PGSZ_KERN << CTX_PGSZ0_NUC_SHIFT) | \ - (CTX_PGSZ_BASE << CTX_PGSZ1_NUC_SHIFT)) - -#define CTX_CHEETAH_PLUS_CTX0 \ - ((CTX_PGSZ_KERN << CTX_PGSZ0_SHIFT) | \ - (CTX_PGSZ_BASE << CTX_PGSZ1_SHIFT)) - -/* If you want "the TLB context number" use CTX_NR_MASK. If you - * want "the bits I program into the context registers" use - * CTX_HW_MASK. - */ -#define CTX_NR_MASK TAG_CONTEXT_BITS -#define CTX_HW_MASK (CTX_NR_MASK | CTX_PGSZ_MASK) - -#define CTX_FIRST_VERSION ((_AC(1,UL) << CTX_VERSION_SHIFT) + _AC(1,UL)) -#define CTX_VALID(__ctx) \ - (!(((__ctx.sparc64_ctx_val) ^ tlb_context_cache) & CTX_VERSION_MASK)) -#define CTX_HWBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_HW_MASK) -#define CTX_NRBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_NR_MASK) - -#ifndef __ASSEMBLY__ - -#define TSB_ENTRY_ALIGNMENT 16 - -struct tsb { - unsigned long tag; - unsigned long pte; -} __attribute__((aligned(TSB_ENTRY_ALIGNMENT))); - -extern void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte); -extern void tsb_flush(unsigned long ent, unsigned long tag); -extern void tsb_init(struct tsb *tsb, unsigned long size); - -struct tsb_config { - struct tsb *tsb; - unsigned long tsb_rss_limit; - unsigned long tsb_nentries; - unsigned long tsb_reg_val; - unsigned long tsb_map_vaddr; - unsigned long tsb_map_pte; -}; - -#define MM_TSB_BASE 0 - -#ifdef CONFIG_HUGETLB_PAGE -#define MM_TSB_HUGE 1 -#define MM_NUM_TSBS 2 -#else -#define MM_NUM_TSBS 1 -#endif - -typedef struct { - spinlock_t lock; - unsigned long sparc64_ctx_val; - unsigned long huge_pte_count; - struct tsb_config tsb_block[MM_NUM_TSBS]; - struct hv_tsb_descr tsb_descr[MM_NUM_TSBS]; -} mm_context_t; - -#endif /* !__ASSEMBLY__ */ - -#define TSB_CONFIG_TSB 0x00 -#define TSB_CONFIG_RSS_LIMIT 0x08 -#define TSB_CONFIG_NENTRIES 0x10 -#define TSB_CONFIG_REG_VAL 0x18 -#define TSB_CONFIG_MAP_VADDR 0x20 -#define TSB_CONFIG_MAP_PTE 0x28 - -#endif /* __MMU_H */ +#include diff --git a/include/asm-sparc64/mmu_context.h b/include/asm-sparc64/mmu_context.h index 5693ab482606..877fee94bd4e 100644 --- a/include/asm-sparc64/mmu_context.h +++ b/include/asm-sparc64/mmu_context.h @@ -1,155 +1 @@ -#ifndef __SPARC64_MMU_CONTEXT_H -#define __SPARC64_MMU_CONTEXT_H - -/* Derived heavily from Linus's Alpha/AXP ASN code... */ - -#ifndef __ASSEMBLY__ - -#include -#include -#include -#include - -static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) -{ -} - -extern spinlock_t ctx_alloc_lock; -extern unsigned long tlb_context_cache; -extern unsigned long mmu_context_bmap[]; - -extern void get_new_mmu_context(struct mm_struct *mm); -#ifdef CONFIG_SMP -extern void smp_new_mmu_context_version(void); -#else -#define smp_new_mmu_context_version() do { } while (0) -#endif - -extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); -extern void destroy_context(struct mm_struct *mm); - -extern void __tsb_context_switch(unsigned long pgd_pa, - struct tsb_config *tsb_base, - struct tsb_config *tsb_huge, - unsigned long tsb_descr_pa); - -static inline void tsb_context_switch(struct mm_struct *mm) -{ - __tsb_context_switch(__pa(mm->pgd), - &mm->context.tsb_block[0], -#ifdef CONFIG_HUGETLB_PAGE - (mm->context.tsb_block[1].tsb ? - &mm->context.tsb_block[1] : - NULL) -#else - NULL -#endif - , __pa(&mm->context.tsb_descr[0])); -} - -extern void tsb_grow(struct mm_struct *mm, unsigned long tsb_index, unsigned long mm_rss); -#ifdef CONFIG_SMP -extern void smp_tsb_sync(struct mm_struct *mm); -#else -#define smp_tsb_sync(__mm) do { } while (0) -#endif - -/* Set MMU context in the actual hardware. */ -#define load_secondary_context(__mm) \ - __asm__ __volatile__( \ - "\n661: stxa %0, [%1] %2\n" \ - " .section .sun4v_1insn_patch, \"ax\"\n" \ - " .word 661b\n" \ - " stxa %0, [%1] %3\n" \ - " .previous\n" \ - " flush %%g6\n" \ - : /* No outputs */ \ - : "r" (CTX_HWBITS((__mm)->context)), \ - "r" (SECONDARY_CONTEXT), "i" (ASI_DMMU), "i" (ASI_MMU)) - -extern void __flush_tlb_mm(unsigned long, unsigned long); - -/* Switch the current MM context. Interrupts are disabled. */ -static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, struct task_struct *tsk) -{ - unsigned long ctx_valid, flags; - int cpu; - - if (unlikely(mm == &init_mm)) - return; - - spin_lock_irqsave(&mm->context.lock, flags); - ctx_valid = CTX_VALID(mm->context); - if (!ctx_valid) - get_new_mmu_context(mm); - - /* We have to be extremely careful here or else we will miss - * a TSB grow if we switch back and forth between a kernel - * thread and an address space which has it's TSB size increased - * on another processor. - * - * It is possible to play some games in order to optimize the - * switch, but the safest thing to do is to unconditionally - * perform the secondary context load and the TSB context switch. - * - * For reference the bad case is, for address space "A": - * - * CPU 0 CPU 1 - * run address space A - * set cpu0's bits in cpu_vm_mask - * switch to kernel thread, borrow - * address space A via entry_lazy_tlb - * run address space A - * set cpu1's bit in cpu_vm_mask - * flush_tlb_pending() - * reset cpu_vm_mask to just cpu1 - * TSB grow - * run address space A - * context was valid, so skip - * TSB context switch - * - * At that point cpu0 continues to use a stale TSB, the one from - * before the TSB grow performed on cpu1. cpu1 did not cross-call - * cpu0 to update it's TSB because at that point the cpu_vm_mask - * only had cpu1 set in it. - */ - load_secondary_context(mm); - tsb_context_switch(mm); - - /* Any time a processor runs a context on an address space - * for the first time, we must flush that context out of the - * local TLB. - */ - cpu = smp_processor_id(); - if (!ctx_valid || !cpu_isset(cpu, mm->cpu_vm_mask)) { - cpu_set(cpu, mm->cpu_vm_mask); - __flush_tlb_mm(CTX_HWBITS(mm->context), - SECONDARY_CONTEXT); - } - spin_unlock_irqrestore(&mm->context.lock, flags); -} - -#define deactivate_mm(tsk,mm) do { } while (0) - -/* Activate a new MM instance for the current task. */ -static inline void activate_mm(struct mm_struct *active_mm, struct mm_struct *mm) -{ - unsigned long flags; - int cpu; - - spin_lock_irqsave(&mm->context.lock, flags); - if (!CTX_VALID(mm->context)) - get_new_mmu_context(mm); - cpu = smp_processor_id(); - if (!cpu_isset(cpu, mm->cpu_vm_mask)) - cpu_set(cpu, mm->cpu_vm_mask); - - load_secondary_context(mm); - __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT); - tsb_context_switch(mm); - spin_unlock_irqrestore(&mm->context.lock, flags); -} - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(__SPARC64_MMU_CONTEXT_H) */ +#include diff --git a/include/asm-sparc64/module.h b/include/asm-sparc64/module.h index 3d77ba465783..a9606db55e4a 100644 --- a/include/asm-sparc64/module.h +++ b/include/asm-sparc64/module.h @@ -1,7 +1 @@ -#ifndef _ASM_SPARC64_MODULE_H -#define _ASM_SPARC64_MODULE_H -struct mod_arch_specific { }; -#define Elf_Shdr Elf64_Shdr -#define Elf_Sym Elf64_Sym -#define Elf_Ehdr Elf64_Ehdr -#endif /* _ASM_SPARC64_MODULE_H */ +#include diff --git a/include/asm-sparc64/mostek.h b/include/asm-sparc64/mostek.h index c5652de2ace2..95a752f7e875 100644 --- a/include/asm-sparc64/mostek.h +++ b/include/asm-sparc64/mostek.h @@ -1,143 +1 @@ -/* mostek.h: Describes the various Mostek time of day clock registers. - * - * Copyright (C) 1995 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) - */ - -#ifndef _SPARC64_MOSTEK_H -#define _SPARC64_MOSTEK_H - -#include - -/* M48T02 Register Map (adapted from Sun NVRAM/Hostid FAQ) - * - * Data - * Address Function - * Bit 7 Bit 6 Bit 5 Bit 4Bit 3 Bit 2 Bit 1 Bit 0 - * 7ff - - - - - - - - Year 00-99 - * 7fe 0 0 0 - - - - - Month 01-12 - * 7fd 0 0 - - - - - - Date 01-31 - * 7fc 0 FT 0 0 0 - - - Day 01-07 - * 7fb KS 0 - - - - - - Hours 00-23 - * 7fa 0 - - - - - - - Minutes 00-59 - * 7f9 ST - - - - - - - Seconds 00-59 - * 7f8 W R S - - - - - Control - * - * * ST is STOP BIT - * * W is WRITE BIT - * * R is READ BIT - * * S is SIGN BIT - * * FT is FREQ TEST BIT - * * KS is KICK START BIT - */ - -/* The Mostek 48t02 real time clock and NVRAM chip. The registers - * other than the control register are in binary coded decimal. Some - * control bits also live outside the control register. - * - * We now deal with physical addresses for I/O to the chip. -DaveM - */ -static inline u8 mostek_read(void __iomem *addr) -{ - u8 ret; - - __asm__ __volatile__("lduba [%1] %2, %0" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - return ret; -} - -static inline void mostek_write(void __iomem *addr, u8 val) -{ - __asm__ __volatile__("stba %0, [%1] %2" - : /* no outputs */ - : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - -#define MOSTEK_EEPROM 0x0000UL -#define MOSTEK_IDPROM 0x07d8UL -#define MOSTEK_CREG 0x07f8UL -#define MOSTEK_SEC 0x07f9UL -#define MOSTEK_MIN 0x07faUL -#define MOSTEK_HOUR 0x07fbUL -#define MOSTEK_DOW 0x07fcUL -#define MOSTEK_DOM 0x07fdUL -#define MOSTEK_MONTH 0x07feUL -#define MOSTEK_YEAR 0x07ffUL - -extern spinlock_t mostek_lock; -extern void __iomem *mstk48t02_regs; - -/* Control register values. */ -#define MSTK_CREG_WRITE 0x80 /* Must set this before placing values. */ -#define MSTK_CREG_READ 0x40 /* Stop updates to allow a clean read. */ -#define MSTK_CREG_SIGN 0x20 /* Slow/speed clock in calibration mode. */ - -/* Control bits that live in the other registers. */ -#define MSTK_STOP 0x80 /* Stop the clock oscillator. (sec) */ -#define MSTK_KICK_START 0x80 /* Kick start the clock chip. (hour) */ -#define MSTK_FREQ_TEST 0x40 /* Frequency test mode. (day) */ - -#define MSTK_YEAR_ZERO 1968 /* If year reg has zero, it is 1968. */ -#define MSTK_CVT_YEAR(yr) ((yr) + MSTK_YEAR_ZERO) - -/* Masks that define how much space each value takes up. */ -#define MSTK_SEC_MASK 0x7f -#define MSTK_MIN_MASK 0x7f -#define MSTK_HOUR_MASK 0x3f -#define MSTK_DOW_MASK 0x07 -#define MSTK_DOM_MASK 0x3f -#define MSTK_MONTH_MASK 0x1f -#define MSTK_YEAR_MASK 0xffU - -/* Binary coded decimal conversion macros. */ -#define MSTK_REGVAL_TO_DECIMAL(x) (((x) & 0x0F) + 0x0A * ((x) >> 0x04)) -#define MSTK_DECIMAL_TO_REGVAL(x) ((((x) / 0x0A) << 0x04) + ((x) % 0x0A)) - -/* Generic register set and get macros for internal use. */ -#define MSTK_GET(regs,name) \ - (MSTK_REGVAL_TO_DECIMAL(mostek_read(regs + MOSTEK_ ## name) & MSTK_ ## name ## _MASK)) -#define MSTK_SET(regs,name,value) \ -do { u8 __val = mostek_read(regs + MOSTEK_ ## name); \ - __val &= ~(MSTK_ ## name ## _MASK); \ - __val |= (MSTK_DECIMAL_TO_REGVAL(value) & \ - (MSTK_ ## name ## _MASK)); \ - mostek_write(regs + MOSTEK_ ## name, __val); \ -} while(0) - -/* Macros to make register access easier on our fingers. These give you - * the decimal value of the register requested if applicable. You pass - * the a pointer to a 'struct mostek48t02'. - */ -#define MSTK_REG_CREG(regs) (mostek_read((regs) + MOSTEK_CREG)) -#define MSTK_REG_SEC(regs) MSTK_GET(regs,SEC) -#define MSTK_REG_MIN(regs) MSTK_GET(regs,MIN) -#define MSTK_REG_HOUR(regs) MSTK_GET(regs,HOUR) -#define MSTK_REG_DOW(regs) MSTK_GET(regs,DOW) -#define MSTK_REG_DOM(regs) MSTK_GET(regs,DOM) -#define MSTK_REG_MONTH(regs) MSTK_GET(regs,MONTH) -#define MSTK_REG_YEAR(regs) MSTK_GET(regs,YEAR) - -#define MSTK_SET_REG_SEC(regs,value) MSTK_SET(regs,SEC,value) -#define MSTK_SET_REG_MIN(regs,value) MSTK_SET(regs,MIN,value) -#define MSTK_SET_REG_HOUR(regs,value) MSTK_SET(regs,HOUR,value) -#define MSTK_SET_REG_DOW(regs,value) MSTK_SET(regs,DOW,value) -#define MSTK_SET_REG_DOM(regs,value) MSTK_SET(regs,DOM,value) -#define MSTK_SET_REG_MONTH(regs,value) MSTK_SET(regs,MONTH,value) -#define MSTK_SET_REG_YEAR(regs,value) MSTK_SET(regs,YEAR,value) - - -/* The Mostek 48t08 clock chip. Found on Sun4m's I think. It has the - * same (basically) layout of the 48t02 chip except for the extra - * NVRAM on board (8 KB against the 48t02's 2 KB). - */ -#define MOSTEK_48T08_OFFSET 0x0000UL /* Lower NVRAM portions */ -#define MOSTEK_48T08_48T02 0x1800UL /* Offset to 48T02 chip */ - -/* SUN5 systems usually have 48t59 model clock chipsets. But we keep the older - * clock chip definitions around just in case. - */ -#define MOSTEK_48T59_OFFSET 0x0000UL /* Lower NVRAM portions */ -#define MOSTEK_48T59_48T02 0x1800UL /* Offset to 48T02 chip */ - -#endif /* !(_SPARC64_MOSTEK_H) */ +#include diff --git a/include/asm-sparc64/namei.h b/include/asm-sparc64/namei.h index cbc1b4c06891..1344a910ba2f 100644 --- a/include/asm-sparc64/namei.h +++ b/include/asm-sparc64/namei.h @@ -1,13 +1 @@ -/* - * linux/include/asm-sparc64/namei.h - * - * Routines to handle famous /usr/gnemul/s*. - * Included from linux/fs/namei.c - */ - -#ifndef __SPARC64_NAMEI_H -#define __SPARC64_NAMEI_H - -#define __emul_prefix() NULL - -#endif /* __SPARC64_NAMEI_H */ +#include diff --git a/include/asm-sparc64/of_platform.h b/include/asm-sparc64/of_platform.h index 78aa032b674c..f7c427b8bc61 100644 --- a/include/asm-sparc64/of_platform.h +++ b/include/asm-sparc64/of_platform.h @@ -1,25 +1 @@ -#ifndef _ASM_SPARC64_OF_PLATFORM_H -#define _ASM_SPARC64_OF_PLATFORM_H -/* - * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. - * - * Modified for Sparc by merging parts of asm-sparc/of_device.h - * by Stephen Rothwell - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -/* This is just here during the transition */ -#include - -extern struct bus_type isa_bus_type; -extern struct bus_type ebus_bus_type; -extern struct bus_type sbus_bus_type; - -#define of_bus_type of_platform_bus_type /* for compatibility */ - -#endif /* _ASM_SPARC64_OF_PLATFORM_H */ +#include diff --git a/include/asm-sparc64/openprom.h b/include/asm-sparc64/openprom.h index b69e4a8c9170..acf4b234fae3 100644 --- a/include/asm-sparc64/openprom.h +++ b/include/asm-sparc64/openprom.h @@ -1,280 +1 @@ -#ifndef __SPARC64_OPENPROM_H -#define __SPARC64_OPENPROM_H - -/* openprom.h: Prom structures and defines for access to the OPENBOOT - * prom routines and data areas. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __ASSEMBLY__ -/* V0 prom device operations. */ -struct linux_dev_v0_funcs { - int (*v0_devopen)(char *device_str); - int (*v0_devclose)(int dev_desc); - int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); - int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); - int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf); - int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf); - int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf); - int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf); - int (*v0_seekdev)(int dev_desc, long logical_offst, int from); -}; - -/* V2 and later prom device operations. */ -struct linux_dev_v2_funcs { - int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */ - char * (*v2_dumb_mem_alloc)(char *va, unsigned sz); - void (*v2_dumb_mem_free)(char *va, unsigned sz); - - /* To map devices into virtual I/O space. */ - char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz); - void (*v2_dumb_munmap)(char *virta, unsigned size); - - int (*v2_dev_open)(char *devpath); - void (*v2_dev_close)(int d); - int (*v2_dev_read)(int d, char *buf, int nbytes); - int (*v2_dev_write)(int d, char *buf, int nbytes); - int (*v2_dev_seek)(int d, int hi, int lo); - - /* Never issued (multistage load support) */ - void (*v2_wheee2)(void); - void (*v2_wheee3)(void); -}; - -struct linux_mlist_v0 { - struct linux_mlist_v0 *theres_more; - unsigned start_adr; - unsigned num_bytes; -}; - -struct linux_mem_v0 { - struct linux_mlist_v0 **v0_totphys; - struct linux_mlist_v0 **v0_prommap; - struct linux_mlist_v0 **v0_available; /* What we can use */ -}; - -/* Arguments sent to the kernel from the boot prompt. */ -struct linux_arguments_v0 { - char *argv[8]; - char args[100]; - char boot_dev[2]; - int boot_dev_ctrl; - int boot_dev_unit; - int dev_partition; - char *kernel_file_name; - void *aieee1; /* XXX */ -}; - -/* V2 and up boot things. */ -struct linux_bootargs_v2 { - char **bootpath; - char **bootargs; - int *fd_stdin; - int *fd_stdout; -}; - -/* The top level PROM vector. */ -struct linux_romvec { - /* Version numbers. */ - unsigned int pv_magic_cookie; - unsigned int pv_romvers; - unsigned int pv_plugin_revision; - unsigned int pv_printrev; - - /* Version 0 memory descriptors. */ - struct linux_mem_v0 pv_v0mem; - - /* Node operations. */ - struct linux_nodeops *pv_nodeops; - - char **pv_bootstr; - struct linux_dev_v0_funcs pv_v0devops; - - char *pv_stdin; - char *pv_stdout; -#define PROMDEV_KBD 0 /* input from keyboard */ -#define PROMDEV_SCREEN 0 /* output to screen */ -#define PROMDEV_TTYA 1 /* in/out to ttya */ -#define PROMDEV_TTYB 2 /* in/out to ttyb */ - - /* Blocking getchar/putchar. NOT REENTRANT! (grr) */ - int (*pv_getchar)(void); - void (*pv_putchar)(int ch); - - /* Non-blocking variants. */ - int (*pv_nbgetchar)(void); - int (*pv_nbputchar)(int ch); - - void (*pv_putstr)(char *str, int len); - - /* Miscellany. */ - void (*pv_reboot)(char *bootstr); - void (*pv_printf)(__const__ char *fmt, ...); - void (*pv_abort)(void); - __volatile__ int *pv_ticks; - void (*pv_halt)(void); - void (**pv_synchook)(void); - - /* Evaluate a forth string, not different proto for V0 and V2->up. */ - union { - void (*v0_eval)(int len, char *str); - void (*v2_eval)(char *str); - } pv_fortheval; - - struct linux_arguments_v0 **pv_v0bootargs; - - /* Get ether address. */ - unsigned int (*pv_enaddr)(int d, char *enaddr); - - struct linux_bootargs_v2 pv_v2bootargs; - struct linux_dev_v2_funcs pv_v2devops; - - int filler[15]; - - /* This one is sun4c/sun4 only. */ - void (*pv_setctxt)(int ctxt, char *va, int pmeg); - - /* Prom version 3 Multiprocessor routines. This stuff is crazy. - * No joke. Calling these when there is only one cpu probably - * crashes the machine, have to test this. :-) - */ - - /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context - * 'thiscontext' executing at address 'prog_counter' - */ - int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr, - int thiscontext, char *prog_counter); - - /* v3_cpustop() will cause cpu 'whichcpu' to stop executing - * until a resume cpu call is made. - */ - int (*v3_cpustop)(unsigned int whichcpu); - - /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or - * resume cpu call is made. - */ - int (*v3_cpuidle)(unsigned int whichcpu); - - /* v3_cpuresume() will resume processor 'whichcpu' executing - * starting with whatever 'pc' and 'npc' were left at the - * last 'idle' or 'stop' call. - */ - int (*v3_cpuresume)(unsigned int whichcpu); -}; - -/* Routines for traversing the prom device tree. */ -struct linux_nodeops { - int (*no_nextnode)(int node); - int (*no_child)(int node); - int (*no_proplen)(int node, char *name); - int (*no_getprop)(int node, char *name, char *val); - int (*no_setprop)(int node, char *name, char *val, int len); - char * (*no_nextprop)(int node, char *name); -}; - -/* More fun PROM structures for device probing. */ -#define PROMREG_MAX 24 -#define PROMVADDR_MAX 16 -#define PROMINTR_MAX 32 - -struct linux_prom_registers { - unsigned which_io; /* hi part of physical address */ - unsigned phys_addr; /* The physical address of this register */ - int reg_size; /* How many bytes does this register take up? */ -}; - -struct linux_prom64_registers { - unsigned long phys_addr; - unsigned long reg_size; -}; - -struct linux_prom_irqs { - int pri; /* IRQ priority */ - int vector; /* This is foobar, what does it do? */ -}; - -/* Element of the "ranges" vector */ -struct linux_prom_ranges { - unsigned int ot_child_space; - unsigned int ot_child_base; /* Bus feels this */ - unsigned int ot_parent_space; - unsigned int ot_parent_base; /* CPU looks from here */ - unsigned int or_size; -}; - -struct linux_prom64_ranges { - unsigned long ot_child_base; /* Bus feels this */ - unsigned long ot_parent_base; /* CPU looks from here */ - unsigned long or_size; -}; - -/* Ranges and reg properties are a bit different for PCI. */ -struct linux_prom_pci_registers { - unsigned int phys_hi; - unsigned int phys_mid; - unsigned int phys_lo; - - unsigned int size_hi; - unsigned int size_lo; -}; - -struct linux_prom_pci_ranges { - unsigned int child_phys_hi; /* Only certain bits are encoded here. */ - unsigned int child_phys_mid; - unsigned int child_phys_lo; - - unsigned int parent_phys_hi; - unsigned int parent_phys_lo; - - unsigned int size_hi; - unsigned int size_lo; -}; - -struct linux_prom_pci_intmap { - unsigned int phys_hi; - unsigned int phys_mid; - unsigned int phys_lo; - - unsigned int interrupt; - - int cnode; - unsigned int cinterrupt; -}; - -struct linux_prom_pci_intmask { - unsigned int phys_hi; - unsigned int phys_mid; - unsigned int phys_lo; - unsigned int interrupt; -}; - -struct linux_prom_ebus_ranges { - unsigned int child_phys_hi; - unsigned int child_phys_lo; - - unsigned int parent_phys_hi; - unsigned int parent_phys_mid; - unsigned int parent_phys_lo; - - unsigned int size; -}; - -struct linux_prom_ebus_intmap { - unsigned int phys_hi; - unsigned int phys_lo; - - unsigned int interrupt; - - int cnode; - unsigned int cinterrupt; -}; - -struct linux_prom_ebus_intmask { - unsigned int phys_hi; - unsigned int phys_lo; - unsigned int interrupt; -}; -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(__SPARC64_OPENPROM_H) */ +#include diff --git a/include/asm-sparc64/oplib.h b/include/asm-sparc64/oplib.h index 55c5bb27e4da..d93e44e63510 100644 --- a/include/asm-sparc64/oplib.h +++ b/include/asm-sparc64/oplib.h @@ -1,322 +1 @@ -/* oplib.h: Describes the interface and available routines in the - * Linux Prom library. - * - * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#ifndef __SPARC64_OPLIB_H -#define __SPARC64_OPLIB_H - -#include - -/* OBP version string. */ -extern char prom_version[]; - -/* Root node of the prom device tree, this stays constant after - * initialization is complete. - */ -extern int prom_root_node; - -/* PROM stdin and stdout */ -extern int prom_stdin, prom_stdout; - -/* /chosen node of the prom device tree, this stays constant after - * initialization is complete. - */ -extern int prom_chosen_node; - -/* Helper values and strings in arch/sparc64/kernel/head.S */ -extern const char prom_peer_name[]; -extern const char prom_compatible_name[]; -extern const char prom_root_compatible[]; -extern const char prom_cpu_compatible[]; -extern const char prom_finddev_name[]; -extern const char prom_chosen_path[]; -extern const char prom_cpu_path[]; -extern const char prom_getprop_name[]; -extern const char prom_mmu_name[]; -extern const char prom_callmethod_name[]; -extern const char prom_translate_name[]; -extern const char prom_map_name[]; -extern const char prom_unmap_name[]; -extern int prom_mmu_ihandle_cache; -extern unsigned int prom_boot_mapped_pc; -extern unsigned int prom_boot_mapping_mode; -extern unsigned long prom_boot_mapping_phys_high, prom_boot_mapping_phys_low; - -struct linux_mlist_p1275 { - struct linux_mlist_p1275 *theres_more; - unsigned long start_adr; - unsigned long num_bytes; -}; - -struct linux_mem_p1275 { - struct linux_mlist_p1275 **p1275_totphys; - struct linux_mlist_p1275 **p1275_prommap; - struct linux_mlist_p1275 **p1275_available; /* What we can use */ -}; - -/* The functions... */ - -/* You must call prom_init() before using any of the library services, - * preferably as early as possible. Pass it the romvec pointer. - */ -extern void prom_init(void *cif_handler, void *cif_stack); - -/* Boot argument acquisition, returns the boot command line string. */ -extern char *prom_getbootargs(void); - -/* Device utilities. */ - -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(const char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - -/* Miscellaneous routines, don't really fit in any category per se. */ - -/* Reboot the machine with the command line passed. */ -extern void prom_reboot(const char *boot_command); - -/* Evaluate the forth string passed. */ -extern void prom_feval(const char *forth_string); - -/* Enter the prom, with possibility of continuation with the 'go' - * command in newer proms. - */ -extern void prom_cmdline(void); - -/* Enter the prom, with no chance of continuation for the stand-alone - * which calls this. - */ -extern void prom_halt(void) __attribute__ ((noreturn)); - -/* Halt and power-off the machine. */ -extern void prom_halt_power_off(void) __attribute__ ((noreturn)); - -/* Set the PROM 'sync' callback function to the passed function pointer. - * When the user gives the 'sync' command at the prom prompt while the - * kernel is still active, the prom will call this routine. - * - */ -typedef int (*callback_func_t)(long *cmd); -extern void prom_setcallback(callback_func_t func_ptr); - -/* Acquire the IDPROM of the root node in the prom device tree. This - * gets passed a buffer where you would like it stuffed. The return value - * is the format type of this idprom or 0xff on error. - */ -extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); - -/* Character operations to/from the console.... */ - -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - -/* Blocking get character from console. */ -extern char prom_getchar(void); - -/* Blocking put character to console. */ -extern void prom_putchar(char character); - -/* Prom's internal routines, don't use in kernel/boot code. */ -extern void prom_printf(const char *fmt, ...); -extern void prom_write(const char *buf, unsigned int len); - -/* Multiprocessor operations... */ -#ifdef CONFIG_SMP -/* Start the CPU with the given device tree node at the passed program - * counter with the given arg passed in via register %o0. - */ -extern void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg); - -/* Start the CPU with the given cpu ID at the passed program - * counter with the given arg passed in via register %o0. - */ -extern void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg); - -/* Stop the CPU with the given cpu ID. */ -extern void prom_stopcpu_cpuid(int cpuid); - -/* Stop the current CPU. */ -extern void prom_stopself(void); - -/* Idle the current CPU. */ -extern void prom_idleself(void); - -/* Resume the CPU with the passed device tree node. */ -extern void prom_resumecpu(int cpunode); -#endif - -/* Power management interfaces. */ - -/* Put the current CPU to sleep. */ -extern void prom_sleepself(void); - -/* Put the entire system to sleep. */ -extern int prom_sleepsystem(void); - -/* Initiate a wakeup event. */ -extern int prom_wakeupsystem(void); - -/* MMU and memory related OBP interfaces. */ - -/* Get unique string identifying SIMM at given physical address. */ -extern int prom_getunumber(int syndrome_code, - unsigned long phys_addr, - char *buf, int buflen); - -/* Retain physical memory to the caller across soft resets. */ -extern unsigned long prom_retain(const char *name, - unsigned long pa_low, unsigned long pa_high, - long size, long align); - -/* Load explicit I/D TLB entries into the calling processor. */ -extern long prom_itlb_load(unsigned long index, - unsigned long tte_data, - unsigned long vaddr); - -extern long prom_dtlb_load(unsigned long index, - unsigned long tte_data, - unsigned long vaddr); - -/* Map/Unmap client program address ranges. First the format of - * the mapping mode argument. - */ -#define PROM_MAP_WRITE 0x0001 /* Writable */ -#define PROM_MAP_READ 0x0002 /* Readable - sw */ -#define PROM_MAP_EXEC 0x0004 /* Executable - sw */ -#define PROM_MAP_LOCKED 0x0010 /* Locked, use i/dtlb load calls for this instead */ -#define PROM_MAP_CACHED 0x0020 /* Cacheable in both L1 and L2 caches */ -#define PROM_MAP_SE 0x0040 /* Side-Effects */ -#define PROM_MAP_GLOB 0x0080 /* Global */ -#define PROM_MAP_IE 0x0100 /* Invert-Endianness */ -#define PROM_MAP_DEFAULT (PROM_MAP_WRITE | PROM_MAP_READ | PROM_MAP_EXEC | PROM_MAP_CACHED) - -extern int prom_map(int mode, unsigned long size, - unsigned long vaddr, unsigned long paddr); -extern void prom_unmap(unsigned long size, unsigned long vaddr); - - -/* PROM device tree traversal functions... */ - -#ifdef PROMLIB_INTERNAL - -/* Internal version of prom_getchild. */ -extern int __prom_getchild(int parent_node); - -/* Internal version of prom_getsibling. */ -extern int __prom_getsibling(int node); - -#endif - -/* Get the child node of the given node, or zero if no child exists. */ -extern int prom_getchild(int parent_node); - -/* Get the next sibling node of the given node, or zero if no further - * siblings exist. - */ -extern int prom_getsibling(int node); - -/* Get the length, at the passed node, of the given property type. - * Returns -1 on error (ie. no such property at this node). - */ -extern int prom_getproplen(int thisnode, const char *property); - -/* Fetch the requested property using the given buffer. Returns - * the number of bytes the prom put into your buffer or -1 on error. - */ -extern int prom_getproperty(int thisnode, const char *property, - char *prop_buffer, int propbuf_size); - -/* Acquire an integer property. */ -extern int prom_getint(int node, const char *property); - -/* Acquire an integer property, with a default value. */ -extern int prom_getintdefault(int node, const char *property, int defval); - -/* Acquire a boolean property, 0=FALSE 1=TRUE. */ -extern int prom_getbool(int node, const char *prop); - -/* Acquire a string property, null string on error. */ -extern void prom_getstring(int node, const char *prop, char *buf, int bufsize); - -/* Does the passed node have the given "name"? YES=1 NO=0 */ -extern int prom_nodematch(int thisnode, const char *name); - -/* Search all siblings starting at the passed node for "name" matching - * the given string. Returns the node on success, zero on failure. - */ -extern int prom_searchsiblings(int node_start, const char *name); - -/* Return the first property type, as a string, for the given node. - * Returns a null string on error. Buffer should be at least 32B long. - */ -extern char *prom_firstprop(int node, char *buffer); - -/* Returns the next property after the passed property for the given - * node. Returns null string on failure. Buffer should be at least 32B long. - */ -extern char *prom_nextprop(int node, const char *prev_property, char *buffer); - -/* Returns 1 if the specified node has given property. */ -extern int prom_node_has_property(int node, const char *property); - -/* Returns phandle of the path specified */ -extern int prom_finddevice(const char *name); - -/* Set the indicated property at the given node with the passed value. - * Returns the number of bytes of your value that the prom took. - */ -extern int prom_setprop(int node, const char *prop_name, char *prop_value, - int value_size); - -extern int prom_pathtoinode(const char *path); -extern int prom_inst2pkg(int); -extern int prom_service_exists(const char *service_name); -extern void prom_sun4v_guest_soft_state(void); - -extern int prom_ihandle2path(int handle, char *buffer, int bufsize); - -/* Client interface level routines. */ -extern long p1275_cmd(const char *, long, ...); - -#if 0 -#define P1275_SIZE(x) ((((long)((x) / 32)) << 32) | (x)) -#else -#define P1275_SIZE(x) x -#endif - -/* We support at most 16 input and 1 output argument */ -#define P1275_ARG_NUMBER 0 -#define P1275_ARG_IN_STRING 1 -#define P1275_ARG_OUT_BUF 2 -#define P1275_ARG_OUT_32B 3 -#define P1275_ARG_IN_FUNCTION 4 -#define P1275_ARG_IN_BUF 5 -#define P1275_ARG_IN_64B 6 - -#define P1275_IN(x) ((x) & 0xf) -#define P1275_OUT(x) (((x) << 4) & 0xf0) -#define P1275_INOUT(i,o) (P1275_IN(i)|P1275_OUT(o)) -#define P1275_ARG(n,x) ((x) << ((n)*3 + 8)) - -#endif /* !(__SPARC64_OPLIB_H) */ +#include diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h index 93f0881b766e..f46c1fb53028 100644 --- a/include/asm-sparc64/page.h +++ b/include/asm-sparc64/page.h @@ -1,142 +1 @@ -#ifndef _SPARC64_PAGE_H -#define _SPARC64_PAGE_H - -#include - -#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB) -#define PAGE_SHIFT 13 -#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) -#define PAGE_SHIFT 16 -#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) -#define PAGE_SHIFT 19 -#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) -#define PAGE_SHIFT 22 -#else -#error No page size specified in kernel configuration -#endif - -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - -/* Flushing for D-cache alias handling is only needed if - * the page size is smaller than 16K. - */ -#if PAGE_SHIFT < 14 -#define DCACHE_ALIASING_POSSIBLE -#endif - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) -#define HPAGE_SHIFT 22 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) -#define HPAGE_SHIFT 19 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -#define HPAGE_SHIFT 16 -#endif - -#ifdef CONFIG_HUGETLB_PAGE -#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1UL)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) -#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA -#endif - -#ifndef __ASSEMBLY__ - -extern void _clear_page(void *page); -#define clear_page(X) _clear_page((void *)(X)) -struct page; -extern void clear_user_page(void *addr, unsigned long vaddr, struct page *page); -#define copy_page(X,Y) memcpy((void *)(X), (void *)(Y), PAGE_SIZE) -extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage); - -/* Unlike sparc32, sparc64's parameter passing API is more - * sane in that structures which as small enough are passed - * in registers instead of on the stack. Thus, setting - * STRICT_MM_TYPECHECKS does not generate worse code so - * let's enable it to get the type checking. - */ - -#define STRICT_MM_TYPECHECKS - -#ifdef STRICT_MM_TYPECHECKS -/* These are used to make use of C type-checking.. */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long iopte; } iopte_t; -typedef struct { unsigned int pmd; } pmd_t; -typedef struct { unsigned int pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; - -#define pte_val(x) ((x).pte) -#define iopte_val(x) ((x).iopte) -#define pmd_val(x) ((x).pmd) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) } ) -#define __iopte(x) ((iopte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -#else -/* .. while these make it easier on the compiler */ -typedef unsigned long pte_t; -typedef unsigned long iopte_t; -typedef unsigned int pmd_t; -typedef unsigned int pgd_t; -typedef unsigned long pgprot_t; - -#define pte_val(x) (x) -#define iopte_val(x) (x) -#define pmd_val(x) (x) -#define pgd_val(x) (x) -#define pgprot_val(x) (x) - -#define __pte(x) (x) -#define __iopte(x) (x) -#define __pmd(x) (x) -#define __pgd(x) (x) -#define __pgprot(x) (x) - -#endif /* (STRICT_MM_TYPECHECKS) */ - -typedef struct page *pgtable_t; - -#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_32BIT) ? \ - (_AC(0x0000000070000000,UL)) : \ - (_AC(0xfffff80000000000,UL) + (1UL << 32UL))) - -#include - -#endif /* !(__ASSEMBLY__) */ - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - -/* We used to stick this into a hard-coded global register (%g4) - * but that does not make sense anymore. - */ -#define PAGE_OFFSET _AC(0xFFFFF80000000000,UL) - -#ifndef __ASSEMBLY__ - -#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) - -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) - -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr)>>PAGE_SHIFT) - -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) - -#define virt_to_phys __pa -#define phys_to_virt __va - -#endif /* !(__ASSEMBLY__) */ - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include - -#endif /* _SPARC64_PAGE_H */ +#include diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h index f59f2571295b..da54c4d1f39c 100644 --- a/include/asm-sparc64/pci.h +++ b/include/asm-sparc64/pci.h @@ -1,209 +1 @@ -#ifndef __SPARC64_PCI_H -#define __SPARC64_PCI_H - -#ifdef __KERNEL__ - -#include - -/* Can be used to override the logic in pci_scan_bus for skipping - * already-configured bus numbers - to be used for buggy BIOSes - * or architectures with incomplete PCI setup by the loader. - */ -#define pcibios_assign_all_busses() 0 -#define pcibios_scan_all_fns(a, b) 0 - -#define PCIBIOS_MIN_IO 0UL -#define PCIBIOS_MIN_MEM 0UL - -#define PCI_IRQ_NONE 0xffffffff - -#define PCI_CACHE_LINE_BYTES 64 - -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - -static inline void pcibios_penalize_isa_irq(int irq, int active) -{ - /* We don't do dynamic PCI IRQ allocation */ -} - -/* The PCI address space does not equal the physical memory - * address space. The networking and block device layers use - * this boolean for bounce buffer decisions. - */ -#define PCI_DMA_BUS_IS_PHYS (0) - -static inline void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, - dma_addr_t *dma_handle) -{ - return dma_alloc_coherent(&pdev->dev, size, dma_handle, GFP_ATOMIC); -} - -static inline void pci_free_consistent(struct pci_dev *pdev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - return dma_free_coherent(&pdev->dev, size, vaddr, dma_handle); -} - -static inline dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, - size_t size, int direction) -{ - return dma_map_single(&pdev->dev, ptr, size, - (enum dma_data_direction) direction); -} - -static inline void pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, - size_t size, int direction) -{ - dma_unmap_single(&pdev->dev, dma_addr, size, - (enum dma_data_direction) direction); -} - -#define pci_map_page(dev, page, off, size, dir) \ - pci_map_single(dev, (page_address(page) + (off)), size, dir) -#define pci_unmap_page(dev,addr,sz,dir) \ - pci_unmap_single(dev,addr,sz,dir) - -/* pci_unmap_{single,page} is not a nop, thus... */ -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ - dma_addr_t ADDR_NAME; -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ - __u32 LEN_NAME; -#define pci_unmap_addr(PTR, ADDR_NAME) \ - ((PTR)->ADDR_NAME) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ - (((PTR)->ADDR_NAME) = (VAL)) -#define pci_unmap_len(PTR, LEN_NAME) \ - ((PTR)->LEN_NAME) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ - (((PTR)->LEN_NAME) = (VAL)) - -static inline int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, - int nents, int direction) -{ - return dma_map_sg(&pdev->dev, sg, nents, - (enum dma_data_direction) direction); -} - -static inline void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, - int nents, int direction) -{ - dma_unmap_sg(&pdev->dev, sg, nents, - (enum dma_data_direction) direction); -} - -static inline void pci_dma_sync_single_for_cpu(struct pci_dev *pdev, - dma_addr_t dma_handle, - size_t size, int direction) -{ - dma_sync_single_for_cpu(&pdev->dev, dma_handle, size, - (enum dma_data_direction) direction); -} - -static inline void pci_dma_sync_single_for_device(struct pci_dev *pdev, - dma_addr_t dma_handle, - size_t size, int direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -static inline void pci_dma_sync_sg_for_cpu(struct pci_dev *pdev, - struct scatterlist *sg, - int nents, int direction) -{ - dma_sync_sg_for_cpu(&pdev->dev, sg, nents, - (enum dma_data_direction) direction); -} - -static inline void pci_dma_sync_sg_for_device(struct pci_dev *pdev, - struct scatterlist *sg, - int nelems, int direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -/* Return whether the given PCI device DMA address mask can - * be supported properly. For example, if your device can - * only drive the low 24-bits during PCI bus mastering, then - * you would pass 0x00ffffff as the mask to this function. - */ -extern int pci_dma_supported(struct pci_dev *hwdev, u64 mask); - -/* PCI IOMMU mapping bypass support. */ - -/* PCI 64-bit addressing works for all slots on all controller - * types on sparc64. However, it requires that the device - * can drive enough of the 64 bits. - */ -#define PCI64_REQUIRED_MASK (~(dma64_addr_t)0) -#define PCI64_ADDR_BASE 0xfffc000000000000UL - -static inline int pci_dma_mapping_error(dma_addr_t dma_addr) -{ - return dma_mapping_error(dma_addr); -} - -#ifdef CONFIG_PCI -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - unsigned long cacheline_size; - u8 byte; - - pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); - if (byte == 0) - cacheline_size = 1024; - else - cacheline_size = (int) byte * 4; - - *strat = PCI_DMA_BURST_BOUNDARY; - *strategy_parameter = cacheline_size; -} -#endif - -/* Return the index of the PCI controller for device PDEV. */ - -extern int pci_domain_nr(struct pci_bus *bus); -static inline int pci_proc_domain(struct pci_bus *bus) -{ - return 1; -} - -/* Platform support for /proc/bus/pci/X/Y mmap()s. */ - -#define HAVE_PCI_MMAP -#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA -#define get_pci_unmapped_area get_fb_unmapped_area - -extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, - int write_combine); - -extern void -pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res); - -extern void -pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region); - -extern struct resource *pcibios_select_root(struct pci_dev *, struct resource *); - -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - return PCI_IRQ_NONE; -} - -struct device_node; -extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); - -#define HAVE_ARCH_PCI_RESOURCE_TO_USER -extern void pci_resource_to_user(const struct pci_dev *dev, int bar, - const struct resource *rsrc, - resource_size_t *start, resource_size_t *end); -#endif /* __KERNEL__ */ - -#endif /* __SPARC64_PCI_H */ +#include diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h index bee64593023e..292729bb350f 100644 --- a/include/asm-sparc64/percpu.h +++ b/include/asm-sparc64/percpu.h @@ -1,28 +1 @@ -#ifndef __ARCH_SPARC64_PERCPU__ -#define __ARCH_SPARC64_PERCPU__ - -#include - -register unsigned long __local_per_cpu_offset asm("g5"); - -#ifdef CONFIG_SMP - -extern void real_setup_per_cpu_areas(void); - -extern unsigned long __per_cpu_base; -extern unsigned long __per_cpu_shift; -#define __per_cpu_offset(__cpu) \ - (__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift)) -#define per_cpu_offset(x) (__per_cpu_offset(x)) - -#define __my_cpu_offset __local_per_cpu_offset - -#else /* ! SMP */ - -#define real_setup_per_cpu_areas() do { } while (0) - -#endif /* SMP */ - -#include - -#endif /* __ARCH_SPARC64_PERCPU__ */ +#include diff --git a/include/asm-sparc64/pgalloc.h b/include/asm-sparc64/pgalloc.h index 326de104d014..bec31641011c 100644 --- a/include/asm-sparc64/pgalloc.h +++ b/include/asm-sparc64/pgalloc.h @@ -1,81 +1 @@ -#ifndef _SPARC64_PGALLOC_H -#define _SPARC64_PGALLOC_H - -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -/* Page table allocation/freeing. */ - -static inline pgd_t *pgd_alloc(struct mm_struct *mm) -{ - return quicklist_alloc(0, GFP_KERNEL, NULL); -} - -static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ - quicklist_free(0, NULL, pgd); -} - -#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) - -static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) -{ - return quicklist_alloc(0, GFP_KERNEL, NULL); -} - -static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) -{ - quicklist_free(0, NULL, pmd); -} - -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, - unsigned long address) -{ - return quicklist_alloc(0, GFP_KERNEL, NULL); -} - -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, - unsigned long address) -{ - struct page *page; - void *pg; - - pg = quicklist_alloc(0, GFP_KERNEL, NULL); - if (!pg) - return NULL; - page = virt_to_page(pg); - pgtable_page_ctor(page); - return page; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - quicklist_free(0, NULL, pte); -} - -static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) -{ - pgtable_page_dtor(ptepage); - quicklist_free_page(0, NULL, ptepage); -} - - -#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) -#define pmd_populate(MM,PMD,PTE_PAGE) \ - pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE)) -#define pmd_pgtable(pmd) pmd_page(pmd) - -static inline void check_pgt_cache(void) -{ - quicklist_trim(0, NULL, 25, 16); -} - -#endif /* _SPARC64_PGALLOC_H */ +#include diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index b87017747b5d..9decbd99aeff 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -1,781 +1 @@ -/* - * pgtable.h: SpitFire page table operations. - * - * Copyright 1996,1997 David S. Miller (davem@caip.rutgers.edu) - * Copyright 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#ifndef _SPARC64_PGTABLE_H -#define _SPARC64_PGTABLE_H - -/* This file contains the functions and defines necessary to modify and use - * the SpitFire page tables. - */ - -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -/* The kernel image occupies 0x4000000 to 0x6000000 (4MB --> 96MB). - * The page copy blockops can use 0x6000000 to 0x8000000. - * The TSB is mapped in the 0x8000000 to 0xa000000 range. - * The PROM resides in an area spanning 0xf0000000 to 0x100000000. - * The vmalloc area spans 0x100000000 to 0x200000000. - * Since modules need to be in the lowest 32-bits of the address space, - * we place them right before the OBP area from 0x10000000 to 0xf0000000. - * There is a single static kernel PMD which maps from 0x0 to address - * 0x400000000. - */ -#define TLBTEMP_BASE _AC(0x0000000006000000,UL) -#define TSBMAP_BASE _AC(0x0000000008000000,UL) -#define MODULES_VADDR _AC(0x0000000010000000,UL) -#define MODULES_LEN _AC(0x00000000e0000000,UL) -#define MODULES_END _AC(0x00000000f0000000,UL) -#define LOW_OBP_ADDRESS _AC(0x00000000f0000000,UL) -#define HI_OBP_ADDRESS _AC(0x0000000100000000,UL) -#define VMALLOC_START _AC(0x0000000100000000,UL) -#define VMALLOC_END _AC(0x0000000200000000,UL) -#define VMEMMAP_BASE _AC(0x0000000200000000,UL) - -#define vmemmap ((struct page *)VMEMMAP_BASE) - -/* XXX All of this needs to be rethought so we can take advantage - * XXX cheetah's full 64-bit virtual address space, ie. no more hole - * XXX in the middle like on spitfire. -DaveM - */ -/* - * Given a virtual address, the lowest PAGE_SHIFT bits determine offset - * into the page; the next higher PAGE_SHIFT-3 bits determine the pte# - * in the proper pagetable (the -3 is from the 8 byte ptes, and each page - * table is a single page long). The next higher PMD_BITS determine pmd# - * in the proper pmdtable (where we must have PMD_BITS <= (PAGE_SHIFT-2) - * since the pmd entries are 4 bytes, and each pmd page is a single page - * long). Finally, the higher few bits determine pgde#. - */ - -/* PMD_SHIFT determines the size of the area a second-level page - * table can map - */ -#define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3)) -#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT) -#define PMD_MASK (~(PMD_SIZE-1)) -#define PMD_BITS (PAGE_SHIFT - 2) - -/* PGDIR_SHIFT determines what a third-level page table entry can map */ -#define PGDIR_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3) + PMD_BITS) -#define PGDIR_SIZE (_AC(1,UL) << PGDIR_SHIFT) -#define PGDIR_MASK (~(PGDIR_SIZE-1)) -#define PGDIR_BITS (PAGE_SHIFT - 2) - -#ifndef __ASSEMBLY__ - -#include - -/* Entries per page directory level. */ -#define PTRS_PER_PTE (1UL << (PAGE_SHIFT-3)) -#define PTRS_PER_PMD (1UL << PMD_BITS) -#define PTRS_PER_PGD (1UL << PGDIR_BITS) - -/* Kernel has a separate 44bit address space. */ -#define FIRST_USER_ADDRESS 0 - -#define pte_ERROR(e) __builtin_trap() -#define pmd_ERROR(e) __builtin_trap() -#define pgd_ERROR(e) __builtin_trap() - -#endif /* !(__ASSEMBLY__) */ - -/* PTE bits which are the same in SUN4U and SUN4V format. */ -#define _PAGE_VALID _AC(0x8000000000000000,UL) /* Valid TTE */ -#define _PAGE_R _AC(0x8000000000000000,UL) /* Keep ref bit uptodate*/ - -/* SUN4U pte bits... */ -#define _PAGE_SZ4MB_4U _AC(0x6000000000000000,UL) /* 4MB Page */ -#define _PAGE_SZ512K_4U _AC(0x4000000000000000,UL) /* 512K Page */ -#define _PAGE_SZ64K_4U _AC(0x2000000000000000,UL) /* 64K Page */ -#define _PAGE_SZ8K_4U _AC(0x0000000000000000,UL) /* 8K Page */ -#define _PAGE_NFO_4U _AC(0x1000000000000000,UL) /* No Fault Only */ -#define _PAGE_IE_4U _AC(0x0800000000000000,UL) /* Invert Endianness */ -#define _PAGE_SOFT2_4U _AC(0x07FC000000000000,UL) /* Software bits, set 2 */ -#define _PAGE_RES1_4U _AC(0x0002000000000000,UL) /* Reserved */ -#define _PAGE_SZ32MB_4U _AC(0x0001000000000000,UL) /* (Panther) 32MB page */ -#define _PAGE_SZ256MB_4U _AC(0x2001000000000000,UL) /* (Panther) 256MB page */ -#define _PAGE_SZALL_4U _AC(0x6001000000000000,UL) /* All pgsz bits */ -#define _PAGE_SN_4U _AC(0x0000800000000000,UL) /* (Cheetah) Snoop */ -#define _PAGE_RES2_4U _AC(0x0000780000000000,UL) /* Reserved */ -#define _PAGE_PADDR_4U _AC(0x000007FFFFFFE000,UL) /* (Cheetah) pa[42:13] */ -#define _PAGE_SOFT_4U _AC(0x0000000000001F80,UL) /* Software bits: */ -#define _PAGE_EXEC_4U _AC(0x0000000000001000,UL) /* Executable SW bit */ -#define _PAGE_MODIFIED_4U _AC(0x0000000000000800,UL) /* Modified (dirty) */ -#define _PAGE_FILE_4U _AC(0x0000000000000800,UL) /* Pagecache page */ -#define _PAGE_ACCESSED_4U _AC(0x0000000000000400,UL) /* Accessed (ref'd) */ -#define _PAGE_READ_4U _AC(0x0000000000000200,UL) /* Readable SW Bit */ -#define _PAGE_WRITE_4U _AC(0x0000000000000100,UL) /* Writable SW Bit */ -#define _PAGE_PRESENT_4U _AC(0x0000000000000080,UL) /* Present */ -#define _PAGE_L_4U _AC(0x0000000000000040,UL) /* Locked TTE */ -#define _PAGE_CP_4U _AC(0x0000000000000020,UL) /* Cacheable in P-Cache */ -#define _PAGE_CV_4U _AC(0x0000000000000010,UL) /* Cacheable in V-Cache */ -#define _PAGE_E_4U _AC(0x0000000000000008,UL) /* side-Effect */ -#define _PAGE_P_4U _AC(0x0000000000000004,UL) /* Privileged Page */ -#define _PAGE_W_4U _AC(0x0000000000000002,UL) /* Writable */ - -/* SUN4V pte bits... */ -#define _PAGE_NFO_4V _AC(0x4000000000000000,UL) /* No Fault Only */ -#define _PAGE_SOFT2_4V _AC(0x3F00000000000000,UL) /* Software bits, set 2 */ -#define _PAGE_MODIFIED_4V _AC(0x2000000000000000,UL) /* Modified (dirty) */ -#define _PAGE_ACCESSED_4V _AC(0x1000000000000000,UL) /* Accessed (ref'd) */ -#define _PAGE_READ_4V _AC(0x0800000000000000,UL) /* Readable SW Bit */ -#define _PAGE_WRITE_4V _AC(0x0400000000000000,UL) /* Writable SW Bit */ -#define _PAGE_PADDR_4V _AC(0x00FFFFFFFFFFE000,UL) /* paddr[55:13] */ -#define _PAGE_IE_4V _AC(0x0000000000001000,UL) /* Invert Endianness */ -#define _PAGE_E_4V _AC(0x0000000000000800,UL) /* side-Effect */ -#define _PAGE_CP_4V _AC(0x0000000000000400,UL) /* Cacheable in P-Cache */ -#define _PAGE_CV_4V _AC(0x0000000000000200,UL) /* Cacheable in V-Cache */ -#define _PAGE_P_4V _AC(0x0000000000000100,UL) /* Privileged Page */ -#define _PAGE_EXEC_4V _AC(0x0000000000000080,UL) /* Executable Page */ -#define _PAGE_W_4V _AC(0x0000000000000040,UL) /* Writable */ -#define _PAGE_SOFT_4V _AC(0x0000000000000030,UL) /* Software bits */ -#define _PAGE_FILE_4V _AC(0x0000000000000020,UL) /* Pagecache page */ -#define _PAGE_PRESENT_4V _AC(0x0000000000000010,UL) /* Present */ -#define _PAGE_RESV_4V _AC(0x0000000000000008,UL) /* Reserved */ -#define _PAGE_SZ16GB_4V _AC(0x0000000000000007,UL) /* 16GB Page */ -#define _PAGE_SZ2GB_4V _AC(0x0000000000000006,UL) /* 2GB Page */ -#define _PAGE_SZ256MB_4V _AC(0x0000000000000005,UL) /* 256MB Page */ -#define _PAGE_SZ32MB_4V _AC(0x0000000000000004,UL) /* 32MB Page */ -#define _PAGE_SZ4MB_4V _AC(0x0000000000000003,UL) /* 4MB Page */ -#define _PAGE_SZ512K_4V _AC(0x0000000000000002,UL) /* 512K Page */ -#define _PAGE_SZ64K_4V _AC(0x0000000000000001,UL) /* 64K Page */ -#define _PAGE_SZ8K_4V _AC(0x0000000000000000,UL) /* 8K Page */ -#define _PAGE_SZALL_4V _AC(0x0000000000000007,UL) /* All pgsz bits */ - -#if PAGE_SHIFT == 13 -#define _PAGE_SZBITS_4U _PAGE_SZ8K_4U -#define _PAGE_SZBITS_4V _PAGE_SZ8K_4V -#elif PAGE_SHIFT == 16 -#define _PAGE_SZBITS_4U _PAGE_SZ64K_4U -#define _PAGE_SZBITS_4V _PAGE_SZ64K_4V -#elif PAGE_SHIFT == 19 -#define _PAGE_SZBITS_4U _PAGE_SZ512K_4U -#define _PAGE_SZBITS_4V _PAGE_SZ512K_4V -#elif PAGE_SHIFT == 22 -#define _PAGE_SZBITS_4U _PAGE_SZ4MB_4U -#define _PAGE_SZBITS_4V _PAGE_SZ4MB_4V -#else -#error Wrong PAGE_SHIFT specified -#endif - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) -#define _PAGE_SZHUGE_4U _PAGE_SZ4MB_4U -#define _PAGE_SZHUGE_4V _PAGE_SZ4MB_4V -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) -#define _PAGE_SZHUGE_4U _PAGE_SZ512K_4U -#define _PAGE_SZHUGE_4V _PAGE_SZ512K_4V -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -#define _PAGE_SZHUGE_4U _PAGE_SZ64K_4U -#define _PAGE_SZHUGE_4V _PAGE_SZ64K_4V -#endif - -/* These are actually filled in at boot time by sun4{u,v}_pgprot_init() */ -#define __P000 __pgprot(0) -#define __P001 __pgprot(0) -#define __P010 __pgprot(0) -#define __P011 __pgprot(0) -#define __P100 __pgprot(0) -#define __P101 __pgprot(0) -#define __P110 __pgprot(0) -#define __P111 __pgprot(0) - -#define __S000 __pgprot(0) -#define __S001 __pgprot(0) -#define __S010 __pgprot(0) -#define __S011 __pgprot(0) -#define __S100 __pgprot(0) -#define __S101 __pgprot(0) -#define __S110 __pgprot(0) -#define __S111 __pgprot(0) - -#ifndef __ASSEMBLY__ - -extern pte_t mk_pte_io(unsigned long, pgprot_t, int, unsigned long); - -extern unsigned long pte_sz_bits(unsigned long size); - -extern pgprot_t PAGE_KERNEL; -extern pgprot_t PAGE_KERNEL_LOCKED; -extern pgprot_t PAGE_COPY; -extern pgprot_t PAGE_SHARED; - -/* XXX This uglyness is for the atyfb driver's sparc mmap() support. XXX */ -extern unsigned long _PAGE_IE; -extern unsigned long _PAGE_E; -extern unsigned long _PAGE_CACHE; - -extern unsigned long pg_iobits; -extern unsigned long _PAGE_ALL_SZ_BITS; -extern unsigned long _PAGE_SZBITS; - -extern struct page *mem_map_zero; -#define ZERO_PAGE(vaddr) (mem_map_zero) - -/* PFNs are real physical page numbers. However, mem_map only begins to record - * per-page information starting at pfn_base. This is to handle systems where - * the first physical page in the machine is at some huge physical address, - * such as 4GB. This is common on a partitioned E10000, for example. - */ -static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot) -{ - unsigned long paddr = pfn << PAGE_SHIFT; - unsigned long sz_bits; - - sz_bits = 0UL; - if (_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL) { - __asm__ __volatile__( - "\n661: sethi %%uhi(%1), %0\n" - " sllx %0, 32, %0\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " mov %2, %0\n" - " nop\n" - " .previous\n" - : "=r" (sz_bits) - : "i" (_PAGE_SZBITS_4U), "i" (_PAGE_SZBITS_4V)); - } - return __pte(paddr | sz_bits | pgprot_val(prot)); -} -#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) - -/* This one can be done with two shifts. */ -static inline unsigned long pte_pfn(pte_t pte) -{ - unsigned long ret; - - __asm__ __volatile__( - "\n661: sllx %1, %2, %0\n" - " srlx %0, %3, %0\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sllx %1, %4, %0\n" - " srlx %0, %5, %0\n" - " .previous\n" - : "=r" (ret) - : "r" (pte_val(pte)), - "i" (21), "i" (21 + PAGE_SHIFT), - "i" (8), "i" (8 + PAGE_SHIFT)); - - return ret; -} -#define pte_page(x) pfn_to_page(pte_pfn(x)) - -static inline pte_t pte_modify(pte_t pte, pgprot_t prot) -{ - unsigned long mask, tmp; - - /* SUN4U: 0x600307ffffffecb8 (negated == 0x9ffcf80000001347) - * SUN4V: 0x30ffffffffffee17 (negated == 0xcf000000000011e8) - * - * Even if we use negation tricks the result is still a 6 - * instruction sequence, so don't try to play fancy and just - * do the most straightforward implementation. - * - * Note: We encode this into 3 sun4v 2-insn patch sequences. - */ - - __asm__ __volatile__( - "\n661: sethi %%uhi(%2), %1\n" - " sethi %%hi(%2), %0\n" - "\n662: or %1, %%ulo(%2), %1\n" - " or %0, %%lo(%2), %0\n" - "\n663: sllx %1, 32, %1\n" - " or %0, %1, %0\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%3), %1\n" - " sethi %%hi(%3), %0\n" - " .word 662b\n" - " or %1, %%ulo(%3), %1\n" - " or %0, %%lo(%3), %0\n" - " .word 663b\n" - " sllx %1, 32, %1\n" - " or %0, %1, %0\n" - " .previous\n" - : "=r" (mask), "=r" (tmp) - : "i" (_PAGE_PADDR_4U | _PAGE_MODIFIED_4U | _PAGE_ACCESSED_4U | - _PAGE_CP_4U | _PAGE_CV_4U | _PAGE_E_4U | _PAGE_PRESENT_4U | - _PAGE_SZBITS_4U), - "i" (_PAGE_PADDR_4V | _PAGE_MODIFIED_4V | _PAGE_ACCESSED_4V | - _PAGE_CP_4V | _PAGE_CV_4V | _PAGE_E_4V | _PAGE_PRESENT_4V | - _PAGE_SZBITS_4V)); - - return __pte((pte_val(pte) & mask) | (pgprot_val(prot) & ~mask)); -} - -static inline pte_t pgoff_to_pte(unsigned long off) -{ - off <<= PAGE_SHIFT; - - __asm__ __volatile__( - "\n661: or %0, %2, %0\n" - " .section .sun4v_1insn_patch, \"ax\"\n" - " .word 661b\n" - " or %0, %3, %0\n" - " .previous\n" - : "=r" (off) - : "0" (off), "i" (_PAGE_FILE_4U), "i" (_PAGE_FILE_4V)); - - return __pte(off); -} - -static inline pgprot_t pgprot_noncached(pgprot_t prot) -{ - unsigned long val = pgprot_val(prot); - - __asm__ __volatile__( - "\n661: andn %0, %2, %0\n" - " or %0, %3, %0\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " andn %0, %4, %0\n" - " or %0, %5, %0\n" - " .previous\n" - : "=r" (val) - : "0" (val), "i" (_PAGE_CP_4U | _PAGE_CV_4U), "i" (_PAGE_E_4U), - "i" (_PAGE_CP_4V | _PAGE_CV_4V), "i" (_PAGE_E_4V)); - - return __pgprot(val); -} -/* Various pieces of code check for platform support by ifdef testing - * on "pgprot_noncached". That's broken and should be fixed, but for - * now... - */ -#define pgprot_noncached pgprot_noncached - -#ifdef CONFIG_HUGETLB_PAGE -static inline pte_t pte_mkhuge(pte_t pte) -{ - unsigned long mask; - - __asm__ __volatile__( - "\n661: sethi %%uhi(%1), %0\n" - " sllx %0, 32, %0\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " mov %2, %0\n" - " nop\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_SZHUGE_4U), "i" (_PAGE_SZHUGE_4V)); - - return __pte(pte_val(pte) | mask); -} -#endif - -static inline pte_t pte_mkdirty(pte_t pte) -{ - unsigned long val = pte_val(pte), tmp; - - __asm__ __volatile__( - "\n661: or %0, %3, %0\n" - " nop\n" - "\n662: nop\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%4), %1\n" - " sllx %1, 32, %1\n" - " .word 662b\n" - " or %1, %%lo(%4), %1\n" - " or %0, %1, %0\n" - " .previous\n" - : "=r" (val), "=r" (tmp) - : "0" (val), "i" (_PAGE_MODIFIED_4U | _PAGE_W_4U), - "i" (_PAGE_MODIFIED_4V | _PAGE_W_4V)); - - return __pte(val); -} - -static inline pte_t pte_mkclean(pte_t pte) -{ - unsigned long val = pte_val(pte), tmp; - - __asm__ __volatile__( - "\n661: andn %0, %3, %0\n" - " nop\n" - "\n662: nop\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%4), %1\n" - " sllx %1, 32, %1\n" - " .word 662b\n" - " or %1, %%lo(%4), %1\n" - " andn %0, %1, %0\n" - " .previous\n" - : "=r" (val), "=r" (tmp) - : "0" (val), "i" (_PAGE_MODIFIED_4U | _PAGE_W_4U), - "i" (_PAGE_MODIFIED_4V | _PAGE_W_4V)); - - return __pte(val); -} - -static inline pte_t pte_mkwrite(pte_t pte) -{ - unsigned long val = pte_val(pte), mask; - - __asm__ __volatile__( - "\n661: mov %1, %0\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%2), %0\n" - " sllx %0, 32, %0\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V)); - - return __pte(val | mask); -} - -static inline pte_t pte_wrprotect(pte_t pte) -{ - unsigned long val = pte_val(pte), tmp; - - __asm__ __volatile__( - "\n661: andn %0, %3, %0\n" - " nop\n" - "\n662: nop\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%4), %1\n" - " sllx %1, 32, %1\n" - " .word 662b\n" - " or %1, %%lo(%4), %1\n" - " andn %0, %1, %0\n" - " .previous\n" - : "=r" (val), "=r" (tmp) - : "0" (val), "i" (_PAGE_WRITE_4U | _PAGE_W_4U), - "i" (_PAGE_WRITE_4V | _PAGE_W_4V)); - - return __pte(val); -} - -static inline pte_t pte_mkold(pte_t pte) -{ - unsigned long mask; - - __asm__ __volatile__( - "\n661: mov %1, %0\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%2), %0\n" - " sllx %0, 32, %0\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V)); - - mask |= _PAGE_R; - - return __pte(pte_val(pte) & ~mask); -} - -static inline pte_t pte_mkyoung(pte_t pte) -{ - unsigned long mask; - - __asm__ __volatile__( - "\n661: mov %1, %0\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%2), %0\n" - " sllx %0, 32, %0\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V)); - - mask |= _PAGE_R; - - return __pte(pte_val(pte) | mask); -} - -static inline pte_t pte_mkspecial(pte_t pte) -{ - return pte; -} - -static inline unsigned long pte_young(pte_t pte) -{ - unsigned long mask; - - __asm__ __volatile__( - "\n661: mov %1, %0\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%2), %0\n" - " sllx %0, 32, %0\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V)); - - return (pte_val(pte) & mask); -} - -static inline unsigned long pte_dirty(pte_t pte) -{ - unsigned long mask; - - __asm__ __volatile__( - "\n661: mov %1, %0\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%2), %0\n" - " sllx %0, 32, %0\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_MODIFIED_4U), "i" (_PAGE_MODIFIED_4V)); - - return (pte_val(pte) & mask); -} - -static inline unsigned long pte_write(pte_t pte) -{ - unsigned long mask; - - __asm__ __volatile__( - "\n661: mov %1, %0\n" - " nop\n" - " .section .sun4v_2insn_patch, \"ax\"\n" - " .word 661b\n" - " sethi %%uhi(%2), %0\n" - " sllx %0, 32, %0\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V)); - - return (pte_val(pte) & mask); -} - -static inline unsigned long pte_exec(pte_t pte) -{ - unsigned long mask; - - __asm__ __volatile__( - "\n661: sethi %%hi(%1), %0\n" - " .section .sun4v_1insn_patch, \"ax\"\n" - " .word 661b\n" - " mov %2, %0\n" - " .previous\n" - : "=r" (mask) - : "i" (_PAGE_EXEC_4U), "i" (_PAGE_EXEC_4V)); - - return (pte_val(pte) & mask); -} - -static inline unsigned long pte_file(pte_t pte) -{ - unsigned long val = pte_val(pte); - - __asm__ __volatile__( - "\n661: and %0, %2, %0\n" - " .section .sun4v_1insn_patch, \"ax\"\n" - " .word 661b\n" - " and %0, %3, %0\n" - " .previous\n" - : "=r" (val) - : "0" (val), "i" (_PAGE_FILE_4U), "i" (_PAGE_FILE_4V)); - - return val; -} - -static inline unsigned long pte_present(pte_t pte) -{ - unsigned long val = pte_val(pte); - - __asm__ __volatile__( - "\n661: and %0, %2, %0\n" - " .section .sun4v_1insn_patch, \"ax\"\n" - " .word 661b\n" - " and %0, %3, %0\n" - " .previous\n" - : "=r" (val) - : "0" (val), "i" (_PAGE_PRESENT_4U), "i" (_PAGE_PRESENT_4V)); - - return val; -} - -static inline int pte_special(pte_t pte) -{ - return 0; -} - -#define pmd_set(pmdp, ptep) \ - (pmd_val(*(pmdp)) = (__pa((unsigned long) (ptep)) >> 11UL)) -#define pud_set(pudp, pmdp) \ - (pud_val(*(pudp)) = (__pa((unsigned long) (pmdp)) >> 11UL)) -#define __pmd_page(pmd) \ - ((unsigned long) __va((((unsigned long)pmd_val(pmd))<<11UL))) -#define pmd_page(pmd) virt_to_page((void *)__pmd_page(pmd)) -#define pud_page_vaddr(pud) \ - ((unsigned long) __va((((unsigned long)pud_val(pud))<<11UL))) -#define pud_page(pud) virt_to_page((void *)pud_page_vaddr(pud)) -#define pmd_none(pmd) (!pmd_val(pmd)) -#define pmd_bad(pmd) (0) -#define pmd_present(pmd) (pmd_val(pmd) != 0U) -#define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0U) -#define pud_none(pud) (!pud_val(pud)) -#define pud_bad(pud) (0) -#define pud_present(pud) (pud_val(pud) != 0U) -#define pud_clear(pudp) (pud_val(*(pudp)) = 0U) - -/* Same in both SUN4V and SUN4U. */ -#define pte_none(pte) (!pte_val(pte)) - -/* to find an entry in a page-table-directory. */ -#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -/* to find an entry in a kernel page-table-directory */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - -/* Find an entry in the second-level page table.. */ -#define pmd_offset(pudp, address) \ - ((pmd_t *) pud_page_vaddr(*(pudp)) + \ - (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))) - -/* Find an entry in the third-level page table.. */ -#define pte_index(dir, address) \ - ((pte_t *) __pmd_page(*(dir)) + \ - ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))) -#define pte_offset_kernel pte_index -#define pte_offset_map pte_index -#define pte_offset_map_nested pte_index -#define pte_unmap(pte) do { } while (0) -#define pte_unmap_nested(pte) do { } while (0) - -/* Actual page table PTE updates. */ -extern void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig); - -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) -{ - pte_t orig = *ptep; - - *ptep = pte; - - /* It is more efficient to let flush_tlb_kernel_range() - * handle init_mm tlb flushes. - * - * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U - * and SUN4V pte layout, so this inline test is fine. - */ - if (likely(mm != &init_mm) && (pte_val(orig) & _PAGE_VALID)) - tlb_batch_add(mm, addr, ptep, orig); -} - -#define pte_clear(mm,addr,ptep) \ - set_pte_at((mm), (addr), (ptep), __pte(0UL)) - -#ifdef DCACHE_ALIASING_POSSIBLE -#define __HAVE_ARCH_MOVE_PTE -#define move_pte(pte, prot, old_addr, new_addr) \ -({ \ - pte_t newpte = (pte); \ - if (tlb_type != hypervisor && pte_present(pte)) { \ - unsigned long this_pfn = pte_pfn(pte); \ - \ - if (pfn_valid(this_pfn) && \ - (((old_addr) ^ (new_addr)) & (1 << 13))) \ - flush_dcache_page_all(current->mm, \ - pfn_to_page(this_pfn)); \ - } \ - newpte; \ -}) -#endif - -extern pgd_t swapper_pg_dir[2048]; -extern pmd_t swapper_low_pmd_dir[2048]; - -extern void paging_init(void); -extern unsigned long find_ecache_flush_span(unsigned long size); - -/* These do nothing with the way I have things setup. */ -#define mmu_lockarea(vaddr, len) (vaddr) -#define mmu_unlockarea(vaddr, len) do { } while(0) - -struct vm_area_struct; -extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t); - -/* Encode and de-code a swap entry */ -#define __swp_type(entry) (((entry).val >> PAGE_SHIFT) & 0xffUL) -#define __swp_offset(entry) ((entry).val >> (PAGE_SHIFT + 8UL)) -#define __swp_entry(type, offset) \ - ( (swp_entry_t) \ - { \ - (((long)(type) << PAGE_SHIFT) | \ - ((long)(offset) << (PAGE_SHIFT + 8UL))) \ - } ) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - -/* File offset in PTE support. */ -extern unsigned long pte_file(pte_t); -#define pte_to_pgoff(pte) (pte_val(pte) >> PAGE_SHIFT) -extern pte_t pgoff_to_pte(unsigned long); -#define PTE_FILE_MAX_BITS (64UL - PAGE_SHIFT - 1UL) - -extern unsigned long *sparc64_valid_addr_bitmap; - -/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ -#define kern_addr_valid(addr) \ - (test_bit(__pa((unsigned long)(addr))>>22, sparc64_valid_addr_bitmap)) - -extern int page_in_phys_avail(unsigned long paddr); - -extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, - unsigned long pfn, - unsigned long size, pgprot_t prot); - -/* - * For sparc32&64, the pfn in io_remap_pfn_range() carries in - * its high 4 bits. These macros/functions put it there or get it from there. - */ -#define MK_IOSPACE_PFN(space, pfn) (pfn | (space << (BITS_PER_LONG - 4))) -#define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) -#define GET_PFN(pfn) (pfn & 0x0fffffffffffffffUL) - -#include - -/* We provide our own get_unmapped_area to cope with VA holes and - * SHM area cache aliasing for userland. - */ -#define HAVE_ARCH_UNMAPPED_AREA -#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN - -/* We provide a special get_unmapped_area for framebuffer mmaps to try and use - * the largest alignment possible such that larget PTEs can be used. - */ -extern unsigned long get_fb_unmapped_area(struct file *filp, unsigned long, - unsigned long, unsigned long, - unsigned long); -#define HAVE_ARCH_FB_UNMAPPED_AREA - -extern void pgtable_cache_init(void); -extern void sun4v_register_fault_status(void); -extern void sun4v_ktsb_register(void); -extern void __init cheetah_ecache_flush_init(void); -extern void sun4v_patch_tlb_handlers(void); - -extern unsigned long cmdline_memory_size; - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(_SPARC64_PGTABLE_H) */ +#include diff --git a/include/asm-sparc64/posix_types.h b/include/asm-sparc64/posix_types.h index 4eaaa0196636..8cee99200232 100644 --- a/include/asm-sparc64/posix_types.h +++ b/include/asm-sparc64/posix_types.h @@ -1,122 +1 @@ -#ifndef __ARCH_SPARC64_POSIX_TYPES_H -#define __ARCH_SPARC64_POSIX_TYPES_H - -/* - * This file is generally used by user-level software, so you need to - * be a little careful about namespace pollution etc. Also, we cannot - * assume GCC is being used. - */ - -typedef unsigned long __kernel_size_t; -typedef long __kernel_ssize_t; -typedef long __kernel_ptrdiff_t; -typedef long __kernel_time_t; -typedef long __kernel_clock_t; -typedef int __kernel_pid_t; -typedef int __kernel_ipc_pid_t; -typedef unsigned int __kernel_uid_t; -typedef unsigned int __kernel_gid_t; -typedef unsigned long __kernel_ino_t; -typedef unsigned int __kernel_mode_t; -typedef unsigned short __kernel_umode_t; -typedef unsigned int __kernel_nlink_t; -typedef int __kernel_daddr_t; -typedef long __kernel_off_t; -typedef char * __kernel_caddr_t; -typedef unsigned short __kernel_uid16_t; -typedef unsigned short __kernel_gid16_t; -typedef int __kernel_clockid_t; -typedef int __kernel_timer_t; - -typedef unsigned short __kernel_old_uid_t; -typedef unsigned short __kernel_old_gid_t; -typedef __kernel_uid_t __kernel_uid32_t; -typedef __kernel_gid_t __kernel_gid32_t; - -typedef unsigned int __kernel_old_dev_t; - -/* Note this piece of asymmetry from the v9 ABI. */ -typedef int __kernel_suseconds_t; - -#ifdef __GNUC__ -typedef long long __kernel_loff_t; -#endif - -typedef struct { - int val[2]; -} __kernel_fsid_t; - -#if defined(__KERNEL__) - -#undef __FD_SET -static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - fdsetp->fds_bits[_tmp] |= (1UL<<_rem); -} - -#undef __FD_CLR -static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem); -} - -#undef __FD_ISSET -static inline int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0; -} - -/* - * This will unroll the loop for the normal constant cases (8 or 32 longs, - * for 256 and 1024-bit fd_sets respectively) - */ -#undef __FD_ZERO -static inline void __FD_ZERO(__kernel_fd_set *p) -{ - unsigned long *tmp = p->fds_bits; - int i; - - if (__builtin_constant_p(__FDSET_LONGS)) { - switch (__FDSET_LONGS) { - case 32: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; - tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; - tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; - tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0; - tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0; - tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0; - tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0; - return; - case 16: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; - tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0; - tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0; - return; - case 8: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0; - return; - case 4: - tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0; - return; - } - } - i = __FDSET_LONGS; - while (i) { - i--; - *tmp = 0; - tmp++; - } -} - -#endif /* defined(__KERNEL__) */ - -#endif /* !(__ARCH_SPARC64_POSIX_TYPES_H) */ +#include diff --git a/include/asm-sparc64/processor.h b/include/asm-sparc64/processor.h index 26b4e5255761..21de6cc182eb 100644 --- a/include/asm-sparc64/processor.h +++ b/include/asm-sparc64/processor.h @@ -1,237 +1 @@ -/* - * include/asm-sparc64/processor.h - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __ASM_SPARC64_PROCESSOR_H -#define __ASM_SPARC64_PROCESSOR_H - -/* - * Sparc64 implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ void *pc; __asm__("rd %%pc, %0" : "=r" (pc)); pc; }) - -#include -#include -#include -#include - -/* The sparc has no problems with write protection */ -#define wp_works_ok 1 -#define wp_works_ok__is_a_macro /* for versions in ksyms.c */ - -/* - * User lives in his very own context, and cannot reference us. Note - * that TASK_SIZE is a misnomer, it really gives maximum user virtual - * address that the kernel will allocate out. - * - * XXX No longer using virtual page tables, kill this upper limit... - */ -#define VA_BITS 44 -#ifndef __ASSEMBLY__ -#define VPTE_SIZE (1UL << (VA_BITS - PAGE_SHIFT + 3)) -#else -#define VPTE_SIZE (1 << (VA_BITS - PAGE_SHIFT + 3)) -#endif - -#define TASK_SIZE ((unsigned long)-VPTE_SIZE) -#define TASK_SIZE_OF(tsk) \ - (test_tsk_thread_flag(tsk,TIF_32BIT) ? \ - (1UL << 32UL) : TASK_SIZE) -#ifdef __KERNEL__ - -#define STACK_TOP32 ((1UL << 32UL) - PAGE_SIZE) -#define STACK_TOP64 (0x0000080000000000UL - (1UL << 32UL)) - -#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \ - STACK_TOP32 : STACK_TOP64) - -#define STACK_TOP_MAX STACK_TOP64 - -#endif - -#ifndef __ASSEMBLY__ - -typedef struct { - unsigned char seg; -} mm_segment_t; - -/* The Sparc processor specific thread struct. */ -/* XXX This should die, everything can go into thread_info now. */ -struct thread_struct { -#ifdef CONFIG_DEBUG_SPINLOCK - /* How many spinlocks held by this thread. - * Used with spin lock debugging to catch tasks - * sleeping illegally with locks held. - */ - int smp_lock_count; - unsigned int smp_lock_pc; -#else - int dummy; /* f'in gcc bug... */ -#endif -}; - -#endif /* !(__ASSEMBLY__) */ - -#ifndef CONFIG_DEBUG_SPINLOCK -#define INIT_THREAD { \ - 0, \ -} -#else /* CONFIG_DEBUG_SPINLOCK */ -#define INIT_THREAD { \ -/* smp_lock_count, smp_lock_pc, */ \ - 0, 0, \ -} -#endif /* !(CONFIG_DEBUG_SPINLOCK) */ - -#ifndef __ASSEMBLY__ - -#include - -/* Return saved PC of a blocked thread. */ -struct task_struct; -extern unsigned long thread_saved_pc(struct task_struct *); - -/* On Uniprocessor, even in RMO processes see TSO semantics */ -#ifdef CONFIG_SMP -#define TSTATE_INITIAL_MM TSTATE_TSO -#else -#define TSTATE_INITIAL_MM TSTATE_RMO -#endif - -/* Do necessary setup to start up a newly executed thread. */ -#define start_thread(regs, pc, sp) \ -do { \ - unsigned long __asi = ASI_PNF; \ - regs->tstate = (regs->tstate & (TSTATE_CWP)) | (TSTATE_INITIAL_MM|TSTATE_IE) | (__asi << 24UL); \ - regs->tpc = ((pc & (~3)) - 4); \ - regs->tnpc = regs->tpc + 4; \ - regs->y = 0; \ - set_thread_wstate(1 << 3); \ - if (current_thread_info()->utraps) { \ - if (*(current_thread_info()->utraps) < 2) \ - kfree(current_thread_info()->utraps); \ - else \ - (*(current_thread_info()->utraps))--; \ - current_thread_info()->utraps = NULL; \ - } \ - __asm__ __volatile__( \ - "stx %%g0, [%0 + %2 + 0x00]\n\t" \ - "stx %%g0, [%0 + %2 + 0x08]\n\t" \ - "stx %%g0, [%0 + %2 + 0x10]\n\t" \ - "stx %%g0, [%0 + %2 + 0x18]\n\t" \ - "stx %%g0, [%0 + %2 + 0x20]\n\t" \ - "stx %%g0, [%0 + %2 + 0x28]\n\t" \ - "stx %%g0, [%0 + %2 + 0x30]\n\t" \ - "stx %%g0, [%0 + %2 + 0x38]\n\t" \ - "stx %%g0, [%0 + %2 + 0x40]\n\t" \ - "stx %%g0, [%0 + %2 + 0x48]\n\t" \ - "stx %%g0, [%0 + %2 + 0x50]\n\t" \ - "stx %%g0, [%0 + %2 + 0x58]\n\t" \ - "stx %%g0, [%0 + %2 + 0x60]\n\t" \ - "stx %%g0, [%0 + %2 + 0x68]\n\t" \ - "stx %1, [%0 + %2 + 0x70]\n\t" \ - "stx %%g0, [%0 + %2 + 0x78]\n\t" \ - "wrpr %%g0, (1 << 3), %%wstate\n\t" \ - : \ - : "r" (regs), "r" (sp - sizeof(struct reg_window) - STACK_BIAS), \ - "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \ -} while (0) - -#define start_thread32(regs, pc, sp) \ -do { \ - unsigned long __asi = ASI_PNF; \ - pc &= 0x00000000ffffffffUL; \ - sp &= 0x00000000ffffffffUL; \ - regs->tstate = (regs->tstate & (TSTATE_CWP))|(TSTATE_INITIAL_MM|TSTATE_IE|TSTATE_AM) | (__asi << 24UL); \ - regs->tpc = ((pc & (~3)) - 4); \ - regs->tnpc = regs->tpc + 4; \ - regs->y = 0; \ - set_thread_wstate(2 << 3); \ - if (current_thread_info()->utraps) { \ - if (*(current_thread_info()->utraps) < 2) \ - kfree(current_thread_info()->utraps); \ - else \ - (*(current_thread_info()->utraps))--; \ - current_thread_info()->utraps = NULL; \ - } \ - __asm__ __volatile__( \ - "stx %%g0, [%0 + %2 + 0x00]\n\t" \ - "stx %%g0, [%0 + %2 + 0x08]\n\t" \ - "stx %%g0, [%0 + %2 + 0x10]\n\t" \ - "stx %%g0, [%0 + %2 + 0x18]\n\t" \ - "stx %%g0, [%0 + %2 + 0x20]\n\t" \ - "stx %%g0, [%0 + %2 + 0x28]\n\t" \ - "stx %%g0, [%0 + %2 + 0x30]\n\t" \ - "stx %%g0, [%0 + %2 + 0x38]\n\t" \ - "stx %%g0, [%0 + %2 + 0x40]\n\t" \ - "stx %%g0, [%0 + %2 + 0x48]\n\t" \ - "stx %%g0, [%0 + %2 + 0x50]\n\t" \ - "stx %%g0, [%0 + %2 + 0x58]\n\t" \ - "stx %%g0, [%0 + %2 + 0x60]\n\t" \ - "stx %%g0, [%0 + %2 + 0x68]\n\t" \ - "stx %1, [%0 + %2 + 0x70]\n\t" \ - "stx %%g0, [%0 + %2 + 0x78]\n\t" \ - "wrpr %%g0, (2 << 3), %%wstate\n\t" \ - : \ - : "r" (regs), "r" (sp - sizeof(struct reg_window32)), \ - "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \ -} while (0) - -/* Free all resources held by a thread. */ -#define release_thread(tsk) do { } while (0) - -/* Prepare to copy thread state - unlazy all lazy status */ -#define prepare_to_copy(tsk) do { } while (0) - -extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - -extern unsigned long get_wchan(struct task_struct *task); - -#define task_pt_regs(tsk) (task_thread_info(tsk)->kregs) -#define KSTK_EIP(tsk) (task_pt_regs(tsk)->tpc) -#define KSTK_ESP(tsk) (task_pt_regs(tsk)->u_regs[UREG_FP]) - -#define cpu_relax() barrier() - -/* Prefetch support. This is tuned for UltraSPARC-III and later. - * UltraSPARC-I will treat these as nops, and UltraSPARC-II has - * a shallower prefetch queue than later chips. - */ -#define ARCH_HAS_PREFETCH -#define ARCH_HAS_PREFETCHW -#define ARCH_HAS_SPINLOCK_PREFETCH - -static inline void prefetch(const void *x) -{ - /* We do not use the read prefetch mnemonic because that - * prefetches into the prefetch-cache which only is accessible - * by floating point operations in UltraSPARC-III and later. - * By contrast, "#one_write" prefetches into the L2 cache - * in shared state. - */ - __asm__ __volatile__("prefetch [%0], #one_write" - : /* no outputs */ - : "r" (x)); -} - -static inline void prefetchw(const void *x) -{ - /* The most optimal prefetch to use for writes is - * "#n_writes". This brings the cacheline into the - * L2 cache in "owned" state. - */ - __asm__ __volatile__("prefetch [%0], #n_writes" - : /* no outputs */ - : "r" (x)); -} - -#define spin_lock_prefetch(x) prefetchw(x) - -#define HAVE_ARCH_PICK_MMAP_LAYOUT - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(__ASM_SPARC64_PROCESSOR_H) */ +#include diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h index b163da79bb6d..1a55b9fb3b0c 100644 --- a/include/asm-sparc64/ptrace.h +++ b/include/asm-sparc64/ptrace.h @@ -1,346 +1 @@ -#ifndef _SPARC64_PTRACE_H -#define _SPARC64_PTRACE_H - -#include - -/* This struct defines the way the registers are stored on the - * stack during a system call and basically all traps. - */ - -/* This magic value must have the low 9 bits clear, - * as that is where we encode the %tt value, see below. - */ -#define PT_REGS_MAGIC 0x57ac6c00 - -#ifndef __ASSEMBLY__ - -#include - -struct pt_regs { - unsigned long u_regs[16]; /* globals and ins */ - unsigned long tstate; - unsigned long tpc; - unsigned long tnpc; - unsigned int y; - - /* We encode a magic number, PT_REGS_MAGIC, along - * with the %tt (trap type) register value at trap - * entry time. The magic number allows us to identify - * accurately a trap stack frame in the stack - * unwinder, and the %tt value allows us to test - * things like "in a system call" etc. for an arbitray - * process. - * - * The PT_REGS_MAGIC is choosen such that it can be - * loaded completely using just a sethi instruction. - */ - unsigned int magic; -}; - -static inline int pt_regs_trap_type(struct pt_regs *regs) -{ - return regs->magic & 0x1ff; -} - -static inline bool pt_regs_is_syscall(struct pt_regs *regs) -{ - return (regs->tstate & TSTATE_SYSCALL); -} - -static inline bool pt_regs_clear_syscall(struct pt_regs *regs) -{ - return (regs->tstate &= ~TSTATE_SYSCALL); -} - -struct pt_regs32 { - unsigned int psr; - unsigned int pc; - unsigned int npc; - unsigned int y; - unsigned int u_regs[16]; /* globals and ins */ -}; - -#define UREG_G0 0 -#define UREG_G1 1 -#define UREG_G2 2 -#define UREG_G3 3 -#define UREG_G4 4 -#define UREG_G5 5 -#define UREG_G6 6 -#define UREG_G7 7 -#define UREG_I0 8 -#define UREG_I1 9 -#define UREG_I2 10 -#define UREG_I3 11 -#define UREG_I4 12 -#define UREG_I5 13 -#define UREG_I6 14 -#define UREG_I7 15 -#define UREG_FP UREG_I6 -#define UREG_RETPC UREG_I7 - -/* A V9 register window */ -struct reg_window { - unsigned long locals[8]; - unsigned long ins[8]; -}; - -/* A 32-bit register window. */ -struct reg_window32 { - unsigned int locals[8]; - unsigned int ins[8]; -}; - -/* A V9 Sparc stack frame */ -struct sparc_stackf { - unsigned long locals[8]; - unsigned long ins[6]; - struct sparc_stackf *fp; - unsigned long callers_pc; - char *structptr; - unsigned long xargs[6]; - unsigned long xxargs[1]; -}; - -/* A 32-bit Sparc stack frame */ -struct sparc_stackf32 { - unsigned int locals[8]; - unsigned int ins[6]; - unsigned int fp; - unsigned int callers_pc; - unsigned int structptr; - unsigned int xargs[6]; - unsigned int xxargs[1]; -}; - -struct sparc_trapf { - unsigned long locals[8]; - unsigned long ins[8]; - unsigned long _unused; - struct pt_regs *regs; -}; - -#define TRACEREG_SZ sizeof(struct pt_regs) -#define STACKFRAME_SZ sizeof(struct sparc_stackf) - -#define TRACEREG32_SZ sizeof(struct pt_regs32) -#define STACKFRAME32_SZ sizeof(struct sparc_stackf32) - -#ifdef __KERNEL__ - -struct global_reg_snapshot { - unsigned long tstate; - unsigned long tpc; - unsigned long tnpc; - unsigned long o7; - unsigned long i7; - struct thread_info *thread; - unsigned long pad1; - unsigned long pad2; -}; - -#define __ARCH_WANT_COMPAT_SYS_PTRACE - -#define force_successful_syscall_return() \ -do { current_thread_info()->syscall_noerror = 1; \ -} while (0) -#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV)) -#define instruction_pointer(regs) ((regs)->tpc) -#define regs_return_value(regs) ((regs)->u_regs[UREG_I0]) -#ifdef CONFIG_SMP -extern unsigned long profile_pc(struct pt_regs *); -#else -#define profile_pc(regs) instruction_pointer(regs) -#endif -extern void show_regs(struct pt_regs *); -extern void __show_regs(struct pt_regs *); -#endif - -#else /* __ASSEMBLY__ */ -/* For assembly code. */ -#define TRACEREG_SZ 0xa0 -#define STACKFRAME_SZ 0xc0 - -#define TRACEREG32_SZ 0x50 -#define STACKFRAME32_SZ 0x60 -#endif - -#ifdef __KERNEL__ -#define STACK_BIAS 2047 -#endif - -/* These are for pt_regs. */ -#define PT_V9_G0 0x00 -#define PT_V9_G1 0x08 -#define PT_V9_G2 0x10 -#define PT_V9_G3 0x18 -#define PT_V9_G4 0x20 -#define PT_V9_G5 0x28 -#define PT_V9_G6 0x30 -#define PT_V9_G7 0x38 -#define PT_V9_I0 0x40 -#define PT_V9_I1 0x48 -#define PT_V9_I2 0x50 -#define PT_V9_I3 0x58 -#define PT_V9_I4 0x60 -#define PT_V9_I5 0x68 -#define PT_V9_I6 0x70 -#define PT_V9_FP PT_V9_I6 -#define PT_V9_I7 0x78 -#define PT_V9_TSTATE 0x80 -#define PT_V9_TPC 0x88 -#define PT_V9_TNPC 0x90 -#define PT_V9_Y 0x98 -#define PT_V9_MAGIC 0x9c -#define PT_TSTATE PT_V9_TSTATE -#define PT_TPC PT_V9_TPC -#define PT_TNPC PT_V9_TNPC - -/* These for pt_regs32. */ -#define PT_PSR 0x0 -#define PT_PC 0x4 -#define PT_NPC 0x8 -#define PT_Y 0xc -#define PT_G0 0x10 -#define PT_WIM PT_G0 -#define PT_G1 0x14 -#define PT_G2 0x18 -#define PT_G3 0x1c -#define PT_G4 0x20 -#define PT_G5 0x24 -#define PT_G6 0x28 -#define PT_G7 0x2c -#define PT_I0 0x30 -#define PT_I1 0x34 -#define PT_I2 0x38 -#define PT_I3 0x3c -#define PT_I4 0x40 -#define PT_I5 0x44 -#define PT_I6 0x48 -#define PT_FP PT_I6 -#define PT_I7 0x4c - -/* Reg_window offsets */ -#define RW_V9_L0 0x00 -#define RW_V9_L1 0x08 -#define RW_V9_L2 0x10 -#define RW_V9_L3 0x18 -#define RW_V9_L4 0x20 -#define RW_V9_L5 0x28 -#define RW_V9_L6 0x30 -#define RW_V9_L7 0x38 -#define RW_V9_I0 0x40 -#define RW_V9_I1 0x48 -#define RW_V9_I2 0x50 -#define RW_V9_I3 0x58 -#define RW_V9_I4 0x60 -#define RW_V9_I5 0x68 -#define RW_V9_I6 0x70 -#define RW_V9_I7 0x78 - -#define RW_L0 0x00 -#define RW_L1 0x04 -#define RW_L2 0x08 -#define RW_L3 0x0c -#define RW_L4 0x10 -#define RW_L5 0x14 -#define RW_L6 0x18 -#define RW_L7 0x1c -#define RW_I0 0x20 -#define RW_I1 0x24 -#define RW_I2 0x28 -#define RW_I3 0x2c -#define RW_I4 0x30 -#define RW_I5 0x34 -#define RW_I6 0x38 -#define RW_I7 0x3c - -/* Stack_frame offsets */ -#define SF_V9_L0 0x00 -#define SF_V9_L1 0x08 -#define SF_V9_L2 0x10 -#define SF_V9_L3 0x18 -#define SF_V9_L4 0x20 -#define SF_V9_L5 0x28 -#define SF_V9_L6 0x30 -#define SF_V9_L7 0x38 -#define SF_V9_I0 0x40 -#define SF_V9_I1 0x48 -#define SF_V9_I2 0x50 -#define SF_V9_I3 0x58 -#define SF_V9_I4 0x60 -#define SF_V9_I5 0x68 -#define SF_V9_FP 0x70 -#define SF_V9_PC 0x78 -#define SF_V9_RETP 0x80 -#define SF_V9_XARG0 0x88 -#define SF_V9_XARG1 0x90 -#define SF_V9_XARG2 0x98 -#define SF_V9_XARG3 0xa0 -#define SF_V9_XARG4 0xa8 -#define SF_V9_XARG5 0xb0 -#define SF_V9_XXARG 0xb8 - -#define SF_L0 0x00 -#define SF_L1 0x04 -#define SF_L2 0x08 -#define SF_L3 0x0c -#define SF_L4 0x10 -#define SF_L5 0x14 -#define SF_L6 0x18 -#define SF_L7 0x1c -#define SF_I0 0x20 -#define SF_I1 0x24 -#define SF_I2 0x28 -#define SF_I3 0x2c -#define SF_I4 0x30 -#define SF_I5 0x34 -#define SF_FP 0x38 -#define SF_PC 0x3c -#define SF_RETP 0x40 -#define SF_XARG0 0x44 -#define SF_XARG1 0x48 -#define SF_XARG2 0x4c -#define SF_XARG3 0x50 -#define SF_XARG4 0x54 -#define SF_XARG5 0x58 -#define SF_XXARG 0x5c - -#ifdef __KERNEL__ - -/* global_reg_snapshot offsets */ -#define GR_SNAP_TSTATE 0x00 -#define GR_SNAP_TPC 0x08 -#define GR_SNAP_TNPC 0x10 -#define GR_SNAP_O7 0x18 -#define GR_SNAP_I7 0x20 -#define GR_SNAP_THREAD 0x28 -#define GR_SNAP_PAD1 0x30 -#define GR_SNAP_PAD2 0x38 - -#endif /* __KERNEL__ */ - -/* Stuff for the ptrace system call */ -#define PTRACE_SPARC_DETACH 11 -#define PTRACE_GETREGS 12 -#define PTRACE_SETREGS 13 -#define PTRACE_GETFPREGS 14 -#define PTRACE_SETFPREGS 15 -#define PTRACE_READDATA 16 -#define PTRACE_WRITEDATA 17 -#define PTRACE_READTEXT 18 -#define PTRACE_WRITETEXT 19 -#define PTRACE_GETFPAREGS 20 -#define PTRACE_SETFPAREGS 21 - -/* There are for debugging 64-bit processes, either from a 32 or 64 bit - * parent. Thus their complements are for debugging 32-bit processes only. - */ - -#define PTRACE_GETREGS64 22 -#define PTRACE_SETREGS64 23 -/* PTRACE_SYSCALL is 24 */ -#define PTRACE_GETFPREGS64 25 -#define PTRACE_SETFPREGS64 26 - -#endif /* !(_SPARC64_PTRACE_H) */ +#include diff --git a/include/asm-sparc64/reg.h b/include/asm-sparc64/reg.h index 77aa4804a60d..495bab27da07 100644 --- a/include/asm-sparc64/reg.h +++ b/include/asm-sparc64/reg.h @@ -1,56 +1 @@ -/* - * linux/asm-sparc64/reg.h - * Layout of the registers as expected by gdb on the Sparc - * we should replace the user.h definitions with those in - * this file, we don't even use the other - * -miguel - * - * The names of the structures, constants and aliases in this file - * have the same names as the sunos ones, some programs rely on these - * names (gdb for example). - * - */ - -#ifndef __SPARC64_REG_H -#define __SPARC64_REG_H - -struct regs { - unsigned long r_g1; - unsigned long r_g2; - unsigned long r_g3; - unsigned long r_g4; - unsigned long r_g5; - unsigned long r_g6; - unsigned long r_g7; - unsigned long r_o0; - unsigned long r_o1; - unsigned long r_o2; - unsigned long r_o3; - unsigned long r_o4; - unsigned long r_o5; - unsigned long r_o6; - unsigned long r_o7; - unsigned long __pad; - unsigned long r_tstate; - unsigned long r_tpc; - unsigned long r_tnpc; - unsigned int r_y; - unsigned int r_fprs; -}; - -#define FPU_REGS_TYPE unsigned int -#define FPU_FSR_TYPE unsigned long - -struct fp_status { - unsigned long fpu_fr[32]; - unsigned long Fpu_fsr; -}; - -struct fpu { - struct fp_status f_fpstatus; -}; - -#define fpu_regs f_fpstatus.fpu_fr -#define fpu_fsr f_fpstatus.Fpu_fsr - -#endif /* __SPARC64_REG_H */ +#include diff --git a/include/asm-sparc64/sbus.h b/include/asm-sparc64/sbus.h index 24a04a55cf85..0cab0e89b874 100644 --- a/include/asm-sparc64/sbus.h +++ b/include/asm-sparc64/sbus.h @@ -1,190 +1 @@ -/* sbus.h: Defines for the Sun SBus. - * - * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net) - */ - -#ifndef _SPARC64_SBUS_H -#define _SPARC64_SBUS_H - -#include -#include - -#include -#include -#include -#include -#include - -/* We scan which devices are on the SBus using the PROM node device - * tree. SBus devices are described in two different ways. You can - * either get an absolute address at which to access the device, or - * you can get a SBus 'slot' number and an offset within that slot. - */ - -/* The base address at which to calculate device OBIO addresses. */ -#define SUN_SBUS_BVADDR 0x00000000 -#define SBUS_OFF_MASK 0x0fffffff - -/* These routines are used to calculate device address from slot - * numbers + offsets, and vice versa. - */ - -static inline unsigned long sbus_devaddr(int slotnum, unsigned long offset) -{ - return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<28)+(offset)); -} - -static inline int sbus_dev_slot(unsigned long dev_addr) -{ - return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>28); -} - -struct sbus_bus; - -/* Linux SBUS device tables */ -struct sbus_dev { - struct of_device ofdev; - struct sbus_bus *bus; - struct sbus_dev *next; - struct sbus_dev *child; - struct sbus_dev *parent; - int prom_node; - char prom_name[64]; - int slot; - - struct resource resource[PROMREG_MAX]; - - struct linux_prom_registers reg_addrs[PROMREG_MAX]; - int num_registers; - - struct linux_prom_ranges device_ranges[PROMREG_MAX]; - int num_device_ranges; - - unsigned int irqs[4]; - int num_irqs; -}; -#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev) - -/* This struct describes the SBus(s) found on this machine. */ -struct sbus_bus { - struct of_device ofdev; - struct sbus_dev *devices; /* Tree of SBUS devices */ - struct sbus_bus *next; /* Next SBUS in system */ - int prom_node; /* OBP node of SBUS */ - char prom_name[64]; /* Usually "sbus" or "sbi" */ - int clock_freq; - - struct linux_prom_ranges sbus_ranges[PROMREG_MAX]; - int num_sbus_ranges; - - int portid; -}; -#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev) - -extern struct sbus_bus *sbus_root; - -/* Device probing routines could find these handy */ -#define for_each_sbus(bus) \ - for((bus) = sbus_root; (bus); (bus)=(bus)->next) - -#define for_each_sbusdev(device, bus) \ - for((device) = (bus)->devices; (device); (device)=(device)->next) - -#define for_all_sbusdev(device, bus) \ - for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \ - for ((device) = (bus)->devices; (device); (device) = (device)->next) - -/* Driver DVMA interfaces. */ -#define sbus_can_dma_64bit(sdev) (1) -#define sbus_can_burst64(sdev) (1) -extern void sbus_set_sbus64(struct sbus_dev *, int); -extern void sbus_fill_device_irq(struct sbus_dev *); - -static inline void *sbus_alloc_consistent(struct sbus_dev *sdev , size_t size, - dma_addr_t *dma_handle) -{ - return dma_alloc_coherent(&sdev->ofdev.dev, size, - dma_handle, GFP_ATOMIC); -} - -static inline void sbus_free_consistent(struct sbus_dev *sdev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - return dma_free_coherent(&sdev->ofdev.dev, size, vaddr, dma_handle); -} - -#define SBUS_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL -#define SBUS_DMA_TODEVICE DMA_TO_DEVICE -#define SBUS_DMA_FROMDEVICE DMA_FROM_DEVICE -#define SBUS_DMA_NONE DMA_NONE - -/* All the rest use streaming mode mappings. */ -static inline dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *ptr, - size_t size, int direction) -{ - return dma_map_single(&sdev->ofdev.dev, ptr, size, - (enum dma_data_direction) direction); -} - -static inline void sbus_unmap_single(struct sbus_dev *sdev, - dma_addr_t dma_addr, size_t size, - int direction) -{ - dma_unmap_single(&sdev->ofdev.dev, dma_addr, size, - (enum dma_data_direction) direction); -} - -static inline int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, - int nents, int direction) -{ - return dma_map_sg(&sdev->ofdev.dev, sg, nents, - (enum dma_data_direction) direction); -} - -static inline void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, - int nents, int direction) -{ - dma_unmap_sg(&sdev->ofdev.dev, sg, nents, - (enum dma_data_direction) direction); -} - -/* Finally, allow explicit synchronization of streamable mappings. */ -static inline void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, - dma_addr_t dma_handle, - size_t size, int direction) -{ - dma_sync_single_for_cpu(&sdev->ofdev.dev, dma_handle, size, - (enum dma_data_direction) direction); -} -#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu - -static inline void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, - dma_addr_t dma_handle, - size_t size, int direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -static inline void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, - struct scatterlist *sg, - int nents, int direction) -{ - dma_sync_sg_for_cpu(&sdev->ofdev.dev, sg, nents, - (enum dma_data_direction) direction); -} -#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu - -static inline void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, - struct scatterlist *sg, - int nents, int direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *); -extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *); -extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *); -extern int sbus_arch_preinit(void); -extern void sbus_arch_postinit(void); - -#endif /* !(_SPARC64_SBUS_H) */ +#include diff --git a/include/asm-sparc64/scatterlist.h b/include/asm-sparc64/scatterlist.h index 81bd058f9382..b7fef95953ca 100644 --- a/include/asm-sparc64/scatterlist.h +++ b/include/asm-sparc64/scatterlist.h @@ -1,27 +1 @@ -#ifndef _SPARC64_SCATTERLIST_H -#define _SPARC64_SCATTERLIST_H - -#include -#include - -struct scatterlist { -#ifdef CONFIG_DEBUG_SG - unsigned long sg_magic; -#endif - unsigned long page_link; - unsigned int offset; - - unsigned int length; - - dma_addr_t dma_address; - __u32 dma_length; -}; - -#define sg_dma_address(sg) ((sg)->dma_address) -#define sg_dma_len(sg) ((sg)->dma_length) - -#define ISA_DMA_THRESHOLD (~0UL) - -#define ARCH_HAS_SG_CHAIN - -#endif /* !(_SPARC64_SCATTERLIST_H) */ +#include diff --git a/include/asm-sparc64/sections.h b/include/asm-sparc64/sections.h index 3f4b9fdc28d0..721496f8b2be 100644 --- a/include/asm-sparc64/sections.h +++ b/include/asm-sparc64/sections.h @@ -1,9 +1 @@ -#ifndef _SPARC64_SECTIONS_H -#define _SPARC64_SECTIONS_H - -/* nothing to see, move along */ -#include - -extern char _start[]; - -#endif +#include diff --git a/include/asm-sparc64/sfp-machine.h b/include/asm-sparc64/sfp-machine.h index c9331b02d9c8..7bbc4fecdc7d 100644 --- a/include/asm-sparc64/sfp-machine.h +++ b/include/asm-sparc64/sfp-machine.h @@ -1,93 +1 @@ -/* Machine-dependent software floating-point definitions. - Sparc64 kernel version. - Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson (rth@cygnus.com), - Jakub Jelinek (jj@ultra.linux.cz) and - David S. Miller (davem@redhat.com). - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _SFP_MACHINE_H -#define _SFP_MACHINE_H - -#define _FP_W_TYPE_SIZE 64 -#define _FP_W_TYPE unsigned long -#define _FP_WS_TYPE signed long -#define _FP_I_TYPE long - -#define _FP_MUL_MEAT_S(R,X,Y) \ - _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y) -#define _FP_MUL_MEAT_D(R,X,Y) \ - _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) -#define _FP_MUL_MEAT_Q(R,X,Y) \ - _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) - -#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) -#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y) -#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) - -#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) -#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1) -#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1 -#define _FP_NANSIGN_S 0 -#define _FP_NANSIGN_D 0 -#define _FP_NANSIGN_Q 0 - -#define _FP_KEEPNANFRACP 1 - -/* If one NaN is signaling and the other is not, - * we choose that one, otherwise we choose X. - */ -/* For _Qp_* and _Q_*, this should prefer X, for - * CPU instruction emulation this should prefer Y. - * (see SPAMv9 B.2.2 section). - */ -#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ - do { \ - if ((_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs) \ - && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ - { \ - R##_s = X##_s; \ - _FP_FRAC_COPY_##wc(R,X); \ - } \ - else \ - { \ - R##_s = Y##_s; \ - _FP_FRAC_COPY_##wc(R,Y); \ - } \ - R##_c = FP_CLS_NAN; \ - } while (0) - -/* Obtain the current rounding mode. */ -#ifndef FP_ROUNDMODE -#define FP_ROUNDMODE ((current_thread_info()->xfsr[0] >> 30) & 0x3) -#endif - -/* Exception flags. */ -#define FP_EX_INVALID (1 << 4) -#define FP_EX_OVERFLOW (1 << 3) -#define FP_EX_UNDERFLOW (1 << 2) -#define FP_EX_DIVZERO (1 << 1) -#define FP_EX_INEXACT (1 << 0) - -#define FP_HANDLE_EXCEPTIONS return _fex - -#define FP_INHIBIT_RESULTS ((current_thread_info()->xfsr[0] >> 23) & _fex) - -#define FP_TRAPPING_EXCEPTIONS ((current_thread_info()->xfsr[0] >> 23) & 0x1f) - -#endif +#include diff --git a/include/asm-sparc64/shmparam.h b/include/asm-sparc64/shmparam.h index 1ed0d6701a9b..5fa3a9b05e7f 100644 --- a/include/asm-sparc64/shmparam.h +++ b/include/asm-sparc64/shmparam.h @@ -1,10 +1 @@ -#ifndef _ASMSPARC64_SHMPARAM_H -#define _ASMSPARC64_SHMPARAM_H - -#include - -#define __ARCH_FORCE_SHMLBA 1 -/* attach addr a multiple of this */ -#define SHMLBA ((PAGE_SIZE > L1DCACHE_SIZE) ? PAGE_SIZE : L1DCACHE_SIZE) - -#endif /* _ASMSPARC64_SHMPARAM_H */ +#include diff --git a/include/asm-sparc64/sigcontext.h b/include/asm-sparc64/sigcontext.h index 1c868d680cfc..5b16dcce44f2 100644 --- a/include/asm-sparc64/sigcontext.h +++ b/include/asm-sparc64/sigcontext.h @@ -1,87 +1 @@ -#ifndef __SPARC64_SIGCONTEXT_H -#define __SPARC64_SIGCONTEXT_H - -#ifdef __KERNEL__ -#include -#endif - -#ifndef __ASSEMBLY__ - -#ifdef __KERNEL__ - -#define __SUNOS_MAXWIN 31 - -/* This is what SunOS does, so shall I unless we use new 32bit signals or rt signals. */ -struct sigcontext32 { - int sigc_onstack; /* state to restore */ - int sigc_mask; /* sigmask to restore */ - int sigc_sp; /* stack pointer */ - int sigc_pc; /* program counter */ - int sigc_npc; /* next program counter */ - int sigc_psr; /* for condition codes etc */ - int sigc_g1; /* User uses these two registers */ - int sigc_o0; /* within the trampoline code. */ - - /* Now comes information regarding the users window set - * at the time of the signal. - */ - int sigc_oswins; /* outstanding windows */ - - /* stack ptrs for each regwin buf */ - unsigned sigc_spbuf[__SUNOS_MAXWIN]; - - /* Windows to restore after signal */ - struct reg_window32 sigc_wbuf[__SUNOS_MAXWIN]; -}; - -#endif - -#ifdef __KERNEL__ - -/* This is what we use for 32bit new non-rt signals. */ - -typedef struct { - struct { - unsigned int psr; - unsigned int pc; - unsigned int npc; - unsigned int y; - unsigned int u_regs[16]; /* globals and ins */ - } si_regs; - int si_mask; -} __siginfo32_t; - -#endif - -typedef struct { - unsigned int si_float_regs [64]; - unsigned long si_fsr; - unsigned long si_gsr; - unsigned long si_fprs; -} __siginfo_fpu_t; - -/* This is what SunOS doesn't, so we have to write this alone - and do it properly. */ -struct sigcontext { - /* The size of this array has to match SI_MAX_SIZE from siginfo.h */ - char sigc_info[128]; - struct { - unsigned long u_regs[16]; /* globals and ins */ - unsigned long tstate; - unsigned long tpc; - unsigned long tnpc; - unsigned int y; - unsigned int fprs; - } sigc_regs; - __siginfo_fpu_t * sigc_fpu_save; - struct { - void * ss_sp; - int ss_flags; - unsigned long ss_size; - } sigc_stack; - unsigned long sigc_mask; -}; - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(__SPARC64_SIGCONTEXT_H) */ +#include diff --git a/include/asm-sparc64/siginfo.h b/include/asm-sparc64/siginfo.h index c96e6c30f8b0..8ffd6ebabc7a 100644 --- a/include/asm-sparc64/siginfo.h +++ b/include/asm-sparc64/siginfo.h @@ -1,32 +1 @@ -#ifndef _SPARC64_SIGINFO_H -#define _SPARC64_SIGINFO_H - -#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3) - -#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) -#define __ARCH_SI_TRAPNO -#define __ARCH_SI_BAND_T int - -#include - -#ifdef __KERNEL__ - -#include - -#ifdef CONFIG_COMPAT - -struct compat_siginfo; - -#endif /* CONFIG_COMPAT */ - -#endif /* __KERNEL__ */ - -#define SI_NOINFO 32767 /* no information in siginfo_t */ - -/* - * SIGEMT si_codes - */ -#define EMT_TAGOVF (__SI_FAULT|1) /* tag overflow */ -#define NSIGEMT 1 - -#endif +#include diff --git a/include/asm-sparc64/signal.h b/include/asm-sparc64/signal.h index 2a7c7934ac0a..79705e5d49c3 100644 --- a/include/asm-sparc64/signal.h +++ b/include/asm-sparc64/signal.h @@ -1,194 +1 @@ -#ifndef _ASMSPARC64_SIGNAL_H -#define _ASMSPARC64_SIGNAL_H - -#include - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ -#include -#include -#endif -#endif - -/* On the Sparc the signal handlers get passed a 'sub-signal' code - * for certain signal types, which we document here. - */ -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SUBSIG_STACK 0 -#define SUBSIG_ILLINST 2 -#define SUBSIG_PRIVINST 3 -#define SUBSIG_BADTRAP(t) (0x80 + (t)) - -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 - -#define SIGEMT 7 -#define SUBSIG_TAG 10 - -#define SIGFPE 8 -#define SUBSIG_FPDISABLED 0x400 -#define SUBSIG_FPERROR 0x404 -#define SUBSIG_FPINTOVFL 0x001 -#define SUBSIG_FPSTSIG 0x002 -#define SUBSIG_IDIVZERO 0x014 -#define SUBSIG_FPINEXACT 0x0c4 -#define SUBSIG_FPDIVZERO 0x0c8 -#define SUBSIG_FPUNFLOW 0x0cc -#define SUBSIG_FPOPERROR 0x0d0 -#define SUBSIG_FPOVFLOW 0x0d4 - -#define SIGKILL 9 -#define SIGBUS 10 -#define SUBSIG_BUSTIMEOUT 1 -#define SUBSIG_ALIGNMENT 2 -#define SUBSIG_MISCERROR 5 - -#define SIGSEGV 11 -#define SUBSIG_NOMAPPING 3 -#define SUBSIG_PROTECTION 4 -#define SUBSIG_SEGERROR 5 - -#define SIGSYS 12 - -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGURG 16 - -/* SunOS values which deviate from the Linux/i386 ones */ -#define SIGSTOP 17 -#define SIGTSTP 18 -#define SIGCONT 19 -#define SIGCHLD 20 -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGIO 23 -#define SIGPOLL SIGIO /* SysV name for SIGIO */ -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGLOST 29 -#define SIGPWR SIGLOST -#define SIGUSR1 30 -#define SIGUSR2 31 - -/* Most things should be clean enough to redefine this at will, if care - is taken to make libc match. */ - -#define __OLD_NSIG 32 -#define __NEW_NSIG 64 -#define _NSIG_BPW 64 -#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW) - -#define SIGRTMIN 32 -#define SIGRTMAX __NEW_NSIG - -#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__) -#define _NSIG __NEW_NSIG -#define __new_sigset_t sigset_t -#define __new_sigaction sigaction -#define __new_sigaction32 sigaction32 -#define __old_sigset_t old_sigset_t -#define __old_sigaction old_sigaction -#define __old_sigaction32 old_sigaction32 -#else -#define _NSIG __OLD_NSIG -#define NSIG _NSIG -#define __old_sigset_t sigset_t -#define __old_sigaction sigaction -#define __old_sigaction32 sigaction32 -#endif - -#ifndef __ASSEMBLY__ - -typedef unsigned long __old_sigset_t; /* at least 32 bits */ - -typedef struct { - unsigned long sig[_NSIG_WORDS]; -} __new_sigset_t; - -/* A SunOS sigstack */ -struct sigstack { - /* XXX 32-bit pointers pinhead XXX */ - char *the_stack; - int cur_status; -}; - -/* Sigvec flags */ -#define _SV_SSTACK 1u /* This signal handler should use sig-stack */ -#define _SV_INTR 2u /* Sig return should not restart system call */ -#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */ -#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */ - -/* - * sa_flags values: SA_STACK is not currently supported, but will allow the - * usage of signal stacks by using the (now obsolete) sa_restorer field in - * the sigaction structure as a stack pointer. This is now possible due to - * the changes in signal handling. LBT 010493. - * SA_RESTART flag to get restarting signals (which were the default long ago) - */ -#define SA_NOCLDSTOP _SV_IGNCHILD -#define SA_STACK _SV_SSTACK -#define SA_ONSTACK _SV_SSTACK -#define SA_RESTART _SV_INTR -#define SA_ONESHOT _SV_RESET -#define SA_NOMASK 0x20u -#define SA_NOCLDWAIT 0x100u -#define SA_SIGINFO 0x200u - - -#define SIG_BLOCK 0x01 /* for blocking signals */ -#define SIG_UNBLOCK 0x02 /* for unblocking signals */ -#define SIG_SETMASK 0x04 /* for setting the signal mask */ - -/* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - -#define MINSIGSTKSZ 4096 -#define SIGSTKSZ 16384 - -#include - -struct __new_sigaction { - __sighandler_t sa_handler; - unsigned long sa_flags; - __sigrestore_t sa_restorer; /* not used by Linux/SPARC yet */ - __new_sigset_t sa_mask; -}; - -struct __old_sigaction { - __sighandler_t sa_handler; - __old_sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); /* not used by Linux/SPARC yet */ -}; - -typedef struct sigaltstack { - void __user *ss_sp; - int ss_flags; - size_t ss_size; -} stack_t; - -#ifdef __KERNEL__ - -struct k_sigaction { - struct __new_sigaction sa; - void __user *ka_restorer; -}; - -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - -#endif /* !(__KERNEL__) */ - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(_ASMSPARC64_SIGNAL_H) */ +#include diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h index cd0311b2e19d..5095a2cbea52 100644 --- a/include/asm-sparc64/smp.h +++ b/include/asm-sparc64/smp.h @@ -1,64 +1 @@ -/* smp.h: Sparc64 specific SMP stuff. - * - * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net) - */ - -#ifndef _SPARC64_SMP_H -#define _SPARC64_SMP_H - -#include -#include -#include -#include - -#ifndef __ASSEMBLY__ - -#include -#include - -#endif /* !(__ASSEMBLY__) */ - -#ifdef CONFIG_SMP - -#ifndef __ASSEMBLY__ - -/* - * Private routines/data - */ - -#include -#include -#include - -DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); -extern cpumask_t cpu_core_map[NR_CPUS]; -extern int sparc64_multi_core; - -/* - * General functions that each host system must provide. - */ - -extern int hard_smp_processor_id(void); -#define raw_smp_processor_id() (current_thread_info()->cpu) - -extern void smp_fill_in_sib_core_maps(void); -extern void cpu_play_dead(void); - -extern void smp_fetch_global_regs(void); - -#ifdef CONFIG_HOTPLUG_CPU -extern int __cpu_disable(void); -extern void __cpu_die(unsigned int cpu); -#endif - -#endif /* !(__ASSEMBLY__) */ - -#else - -#define hard_smp_processor_id() 0 -#define smp_fill_in_sib_core_maps() do { } while (0) -#define smp_fetch_global_regs() do { } while (0) - -#endif /* !(CONFIG_SMP) */ - -#endif /* !(_SPARC64_SMP_H) */ +#include diff --git a/include/asm-sparc64/spinlock.h b/include/asm-sparc64/spinlock.h index 0006fe9f8c7a..0115b8156eb8 100644 --- a/include/asm-sparc64/spinlock.h +++ b/include/asm-sparc64/spinlock.h @@ -1,250 +1 @@ -/* spinlock.h: 64-bit Sparc spinlock support. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __SPARC64_SPINLOCK_H -#define __SPARC64_SPINLOCK_H - -#include /* For NR_CPUS */ - -#ifndef __ASSEMBLY__ - -/* To get debugging spinlocks which detect and catch - * deadlock situations, set CONFIG_DEBUG_SPINLOCK - * and rebuild your kernel. - */ - -/* All of these locking primitives are expected to work properly - * even in an RMO memory model, which currently is what the kernel - * runs in. - * - * There is another issue. Because we play games to save cycles - * in the non-contention case, we need to be extra careful about - * branch targets into the "spinning" code. They live in their - * own section, but the newer V9 branches have a shorter range - * than the traditional 32-bit sparc branch variants. The rule - * is that the branches that go into and out of the spinner sections - * must be pre-V9 branches. - */ - -#define __raw_spin_is_locked(lp) ((lp)->lock != 0) - -#define __raw_spin_unlock_wait(lp) \ - do { rmb(); \ - } while((lp)->lock) - -static inline void __raw_spin_lock(raw_spinlock_t *lock) -{ - unsigned long tmp; - - __asm__ __volatile__( -"1: ldstub [%1], %0\n" -" membar #StoreLoad | #StoreStore\n" -" brnz,pn %0, 2f\n" -" nop\n" -" .subsection 2\n" -"2: ldub [%1], %0\n" -" membar #LoadLoad\n" -" brnz,pt %0, 2b\n" -" nop\n" -" ba,a,pt %%xcc, 1b\n" -" .previous" - : "=&r" (tmp) - : "r" (lock) - : "memory"); -} - -static inline int __raw_spin_trylock(raw_spinlock_t *lock) -{ - unsigned long result; - - __asm__ __volatile__( -" ldstub [%1], %0\n" -" membar #StoreLoad | #StoreStore" - : "=r" (result) - : "r" (lock) - : "memory"); - - return (result == 0UL); -} - -static inline void __raw_spin_unlock(raw_spinlock_t *lock) -{ - __asm__ __volatile__( -" membar #StoreStore | #LoadStore\n" -" stb %%g0, [%0]" - : /* No outputs */ - : "r" (lock) - : "memory"); -} - -static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) -{ - unsigned long tmp1, tmp2; - - __asm__ __volatile__( -"1: ldstub [%2], %0\n" -" membar #StoreLoad | #StoreStore\n" -" brnz,pn %0, 2f\n" -" nop\n" -" .subsection 2\n" -"2: rdpr %%pil, %1\n" -" wrpr %3, %%pil\n" -"3: ldub [%2], %0\n" -" membar #LoadLoad\n" -" brnz,pt %0, 3b\n" -" nop\n" -" ba,pt %%xcc, 1b\n" -" wrpr %1, %%pil\n" -" .previous" - : "=&r" (tmp1), "=&r" (tmp2) - : "r"(lock), "r"(flags) - : "memory"); -} - -/* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */ - -static void inline __read_lock(raw_rwlock_t *lock) -{ - unsigned long tmp1, tmp2; - - __asm__ __volatile__ ( -"1: ldsw [%2], %0\n" -" brlz,pn %0, 2f\n" -"4: add %0, 1, %1\n" -" cas [%2], %0, %1\n" -" cmp %0, %1\n" -" membar #StoreLoad | #StoreStore\n" -" bne,pn %%icc, 1b\n" -" nop\n" -" .subsection 2\n" -"2: ldsw [%2], %0\n" -" membar #LoadLoad\n" -" brlz,pt %0, 2b\n" -" nop\n" -" ba,a,pt %%xcc, 4b\n" -" .previous" - : "=&r" (tmp1), "=&r" (tmp2) - : "r" (lock) - : "memory"); -} - -static int inline __read_trylock(raw_rwlock_t *lock) -{ - int tmp1, tmp2; - - __asm__ __volatile__ ( -"1: ldsw [%2], %0\n" -" brlz,a,pn %0, 2f\n" -" mov 0, %0\n" -" add %0, 1, %1\n" -" cas [%2], %0, %1\n" -" cmp %0, %1\n" -" membar #StoreLoad | #StoreStore\n" -" bne,pn %%icc, 1b\n" -" mov 1, %0\n" -"2:" - : "=&r" (tmp1), "=&r" (tmp2) - : "r" (lock) - : "memory"); - - return tmp1; -} - -static void inline __read_unlock(raw_rwlock_t *lock) -{ - unsigned long tmp1, tmp2; - - __asm__ __volatile__( -" membar #StoreLoad | #LoadLoad\n" -"1: lduw [%2], %0\n" -" sub %0, 1, %1\n" -" cas [%2], %0, %1\n" -" cmp %0, %1\n" -" bne,pn %%xcc, 1b\n" -" nop" - : "=&r" (tmp1), "=&r" (tmp2) - : "r" (lock) - : "memory"); -} - -static void inline __write_lock(raw_rwlock_t *lock) -{ - unsigned long mask, tmp1, tmp2; - - mask = 0x80000000UL; - - __asm__ __volatile__( -"1: lduw [%2], %0\n" -" brnz,pn %0, 2f\n" -"4: or %0, %3, %1\n" -" cas [%2], %0, %1\n" -" cmp %0, %1\n" -" membar #StoreLoad | #StoreStore\n" -" bne,pn %%icc, 1b\n" -" nop\n" -" .subsection 2\n" -"2: lduw [%2], %0\n" -" membar #LoadLoad\n" -" brnz,pt %0, 2b\n" -" nop\n" -" ba,a,pt %%xcc, 4b\n" -" .previous" - : "=&r" (tmp1), "=&r" (tmp2) - : "r" (lock), "r" (mask) - : "memory"); -} - -static void inline __write_unlock(raw_rwlock_t *lock) -{ - __asm__ __volatile__( -" membar #LoadStore | #StoreStore\n" -" stw %%g0, [%0]" - : /* no outputs */ - : "r" (lock) - : "memory"); -} - -static int inline __write_trylock(raw_rwlock_t *lock) -{ - unsigned long mask, tmp1, tmp2, result; - - mask = 0x80000000UL; - - __asm__ __volatile__( -" mov 0, %2\n" -"1: lduw [%3], %0\n" -" brnz,pn %0, 2f\n" -" or %0, %4, %1\n" -" cas [%3], %0, %1\n" -" cmp %0, %1\n" -" membar #StoreLoad | #StoreStore\n" -" bne,pn %%icc, 1b\n" -" nop\n" -" mov 1, %2\n" -"2:" - : "=&r" (tmp1), "=&r" (tmp2), "=&r" (result) - : "r" (lock), "r" (mask) - : "memory"); - - return result; -} - -#define __raw_read_lock(p) __read_lock(p) -#define __raw_read_trylock(p) __read_trylock(p) -#define __raw_read_unlock(p) __read_unlock(p) -#define __raw_write_lock(p) __write_lock(p) -#define __raw_write_unlock(p) __write_unlock(p) -#define __raw_write_trylock(p) __write_trylock(p) - -#define __raw_read_can_lock(rw) (!((rw)->lock & 0x80000000UL)) -#define __raw_write_can_lock(rw) (!(rw)->lock) - -#define _raw_spin_relax(lock) cpu_relax() -#define _raw_read_relax(lock) cpu_relax() -#define _raw_write_relax(lock) cpu_relax() - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(__SPARC64_SPINLOCK_H) */ +#include diff --git a/include/asm-sparc64/stat.h b/include/asm-sparc64/stat.h index 9650fdea847f..b108a866256b 100644 --- a/include/asm-sparc64/stat.h +++ b/include/asm-sparc64/stat.h @@ -1,47 +1 @@ -#ifndef _SPARC64_STAT_H -#define _SPARC64_STAT_H - -#include - -struct stat { - unsigned st_dev; - ino_t st_ino; - mode_t st_mode; - short st_nlink; - uid_t st_uid; - gid_t st_gid; - unsigned st_rdev; - off_t st_size; - time_t st_atime; - time_t st_mtime; - time_t st_ctime; - off_t st_blksize; - off_t st_blocks; - unsigned long __unused4[2]; -}; - -struct stat64 { - unsigned long st_dev; - unsigned long st_ino; - unsigned long st_nlink; - - unsigned int st_mode; - unsigned int st_uid; - unsigned int st_gid; - unsigned int __pad0; - - unsigned long st_rdev; - long st_size; - long st_blksize; - long st_blocks; - - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - unsigned long st_ctime; - unsigned long st_ctime_nsec; - long __unused[3]; -}; - -#endif +#include diff --git a/include/asm-sparc64/statfs.h b/include/asm-sparc64/statfs.h index 79b3c890a5fa..5503d6a4c67e 100644 --- a/include/asm-sparc64/statfs.h +++ b/include/asm-sparc64/statfs.h @@ -1,54 +1 @@ -#ifndef _SPARC64_STATFS_H -#define _SPARC64_STATFS_H - -#ifndef __KERNEL_STRICT_NAMES - -#include - -typedef __kernel_fsid_t fsid_t; - -#endif - -struct statfs { - long f_type; - long f_bsize; - long f_blocks; - long f_bfree; - long f_bavail; - long f_files; - long f_ffree; - __kernel_fsid_t f_fsid; - long f_namelen; - long f_frsize; - long f_spare[5]; -}; - -struct statfs64 { - long f_type; - long f_bsize; - long f_blocks; - long f_bfree; - long f_bavail; - long f_files; - long f_ffree; - __kernel_fsid_t f_fsid; - long f_namelen; - long f_frsize; - long f_spare[5]; -}; - -struct compat_statfs64 { - __u32 f_type; - __u32 f_bsize; - __u64 f_blocks; - __u64 f_bfree; - __u64 f_bavail; - __u64 f_files; - __u64 f_ffree; - __kernel_fsid_t f_fsid; - __u32 f_namelen; - __u32 f_frsize; - __u32 f_spare[5]; -}; - -#endif +#include diff --git a/include/asm-sparc64/string.h b/include/asm-sparc64/string.h index 43161f2d17eb..5018cd8b6ad0 100644 --- a/include/asm-sparc64/string.h +++ b/include/asm-sparc64/string.h @@ -1,83 +1 @@ -/* - * string.h: External definitions for optimized assembly string - * routines for the Linux Kernel. - * - * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996,1997,1999 Jakub Jelinek (jakub@redhat.com) - */ - -#ifndef __SPARC64_STRING_H__ -#define __SPARC64_STRING_H__ - -/* Really, userland/ksyms should not see any of this stuff. */ - -#ifdef __KERNEL__ - -#include - -extern void *__memset(void *,int,__kernel_size_t); - -#ifndef EXPORT_SYMTAB_STROPS - -/* First the mem*() things. */ -#define __HAVE_ARCH_MEMMOVE -extern void *memmove(void *, const void *, __kernel_size_t); - -#define __HAVE_ARCH_MEMCPY -extern void *memcpy(void *, const void *, __kernel_size_t); - -#define __HAVE_ARCH_MEMSET -extern void *__builtin_memset(void *,int,__kernel_size_t); - -static inline void *__constant_memset(void *s, int c, __kernel_size_t count) -{ - extern __kernel_size_t __bzero(void *, __kernel_size_t); - - if (!c) { - __bzero(s, count); - return s; - } else - return __memset(s, c, count); -} - -#undef memset -#define memset(s, c, count) \ -((__builtin_constant_p(count) && (count) <= 32) ? \ - __builtin_memset((s), (c), (count)) : \ - (__builtin_constant_p(c) ? \ - __constant_memset((s), (c), (count)) : \ - __memset((s), (c), (count)))) - -#define __HAVE_ARCH_MEMSCAN - -#undef memscan -#define memscan(__arg0, __char, __arg2) \ -({ \ - extern void *__memscan_zero(void *, size_t); \ - extern void *__memscan_generic(void *, int, size_t); \ - void *__retval, *__addr = (__arg0); \ - size_t __size = (__arg2); \ - \ - if(__builtin_constant_p(__char) && !(__char)) \ - __retval = __memscan_zero(__addr, __size); \ - else \ - __retval = __memscan_generic(__addr, (__char), __size); \ - \ - __retval; \ -}) - -#define __HAVE_ARCH_MEMCMP -extern int memcmp(const void *,const void *,__kernel_size_t); - -/* Now the str*() stuff... */ -#define __HAVE_ARCH_STRLEN -extern __kernel_size_t strlen(const char *); - -#define __HAVE_ARCH_STRNCMP -extern int strncmp(const char *, const char *, __kernel_size_t); - -#endif /* !EXPORT_SYMTAB_STROPS */ - -#endif /* __KERNEL__ */ - -#endif /* !(__SPARC64_STRING_H__) */ +#include diff --git a/include/asm-sparc64/system.h b/include/asm-sparc64/system.h index 6897ac31be41..be2603c2e527 100644 --- a/include/asm-sparc64/system.h +++ b/include/asm-sparc64/system.h @@ -1,355 +1 @@ -#ifndef __SPARC64_SYSTEM_H -#define __SPARC64_SYSTEM_H - -#include -#include -#include - -#ifndef __ASSEMBLY__ - -#include -#include - -/* - * Sparc (general) CPU types - */ -enum sparc_cpu { - sun4 = 0x00, - sun4c = 0x01, - sun4m = 0x02, - sun4d = 0x03, - sun4e = 0x04, - sun4u = 0x05, /* V8 ploos ploos */ - sun_unknown = 0x06, - ap1000 = 0x07, /* almost a sun4m */ -}; - -#define sparc_cpu_model sun4u - -/* This cannot ever be a sun4c nor sun4 :) That's just history. */ -#define ARCH_SUN4C_SUN4 0 -#define ARCH_SUN4 0 - -extern char reboot_command[]; - -/* These are here in an effort to more fully work around Spitfire Errata - * #51. Essentially, if a memory barrier occurs soon after a mispredicted - * branch, the chip can stop executing instructions until a trap occurs. - * Therefore, if interrupts are disabled, the chip can hang forever. - * - * It used to be believed that the memory barrier had to be right in the - * delay slot, but a case has been traced recently wherein the memory barrier - * was one instruction after the branch delay slot and the chip still hung. - * The offending sequence was the following in sym_wakeup_done() of the - * sym53c8xx_2 driver: - * - * call sym_ccb_from_dsa, 0 - * movge %icc, 0, %l0 - * brz,pn %o0, .LL1303 - * mov %o0, %l2 - * membar #LoadLoad - * - * The branch has to be mispredicted for the bug to occur. Therefore, we put - * the memory barrier explicitly into a "branch always, predicted taken" - * delay slot to avoid the problem case. - */ -#define membar_safe(type) \ -do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \ - " membar " type "\n" \ - "1:\n" \ - : : : "memory"); \ -} while (0) - -#define mb() \ - membar_safe("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad") -#define rmb() \ - membar_safe("#LoadLoad") -#define wmb() \ - membar_safe("#StoreStore") -#define membar_storeload() \ - membar_safe("#StoreLoad") -#define membar_storeload_storestore() \ - membar_safe("#StoreLoad | #StoreStore") -#define membar_storeload_loadload() \ - membar_safe("#StoreLoad | #LoadLoad") -#define membar_storestore_loadstore() \ - membar_safe("#StoreStore | #LoadStore") - -#endif - -#define nop() __asm__ __volatile__ ("nop") - -#define read_barrier_depends() do { } while(0) -#define set_mb(__var, __value) \ - do { __var = __value; membar_storeload_storestore(); } while(0) - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#define smp_read_barrier_depends() read_barrier_depends() -#else -#define smp_mb() __asm__ __volatile__("":::"memory") -#define smp_rmb() __asm__ __volatile__("":::"memory") -#define smp_wmb() __asm__ __volatile__("":::"memory") -#define smp_read_barrier_depends() do { } while(0) -#endif - -#define flushi(addr) __asm__ __volatile__ ("flush %0" : : "r" (addr) : "memory") - -#define flushw_all() __asm__ __volatile__("flushw") - -/* Performance counter register access. */ -#define read_pcr(__p) __asm__ __volatile__("rd %%pcr, %0" : "=r" (__p)) -#define write_pcr(__p) __asm__ __volatile__("wr %0, 0x0, %%pcr" : : "r" (__p)) -#define read_pic(__p) __asm__ __volatile__("rd %%pic, %0" : "=r" (__p)) - -/* Blackbird errata workaround. See commentary in - * arch/sparc64/kernel/smp.c:smp_percpu_timer_interrupt() - * for more information. - */ -#define reset_pic() \ - __asm__ __volatile__("ba,pt %xcc, 99f\n\t" \ - ".align 64\n" \ - "99:wr %g0, 0x0, %pic\n\t" \ - "rd %pic, %g0") - -#ifndef __ASSEMBLY__ - -extern void sun_do_break(void); -extern int stop_a_enabled; - -extern void fault_in_user_windows(void); -extern void synchronize_user_stack(void); - -extern void __flushw_user(void); -#define flushw_user() __flushw_user() - -#define flush_user_windows flushw_user -#define flush_register_windows flushw_all - -/* Don't hold the runqueue lock over context switch */ -#define __ARCH_WANT_UNLOCKED_CTXSW -#define prepare_arch_switch(next) \ -do { \ - flushw_all(); \ -} while (0) - - /* See what happens when you design the chip correctly? - * - * We tell gcc we clobber all non-fixed-usage registers except - * for l0/l1. It will use one for 'next' and the other to hold - * the output value of 'last'. 'next' is not referenced again - * past the invocation of switch_to in the scheduler, so we need - * not preserve it's value. Hairy, but it lets us remove 2 loads - * and 2 stores in this critical code path. -DaveM - */ -#define switch_to(prev, next, last) \ -do { if (test_thread_flag(TIF_PERFCTR)) { \ - unsigned long __tmp; \ - read_pcr(__tmp); \ - current_thread_info()->pcr_reg = __tmp; \ - read_pic(__tmp); \ - current_thread_info()->kernel_cntd0 += (unsigned int)(__tmp);\ - current_thread_info()->kernel_cntd1 += ((__tmp) >> 32); \ - } \ - flush_tlb_pending(); \ - save_and_clear_fpu(); \ - /* If you are tempted to conditionalize the following */ \ - /* so that ASI is only written if it changes, think again. */ \ - __asm__ __volatile__("wr %%g0, %0, %%asi" \ - : : "r" (__thread_flag_byte_ptr(task_thread_info(next))[TI_FLAG_BYTE_CURRENT_DS]));\ - trap_block[current_thread_info()->cpu].thread = \ - task_thread_info(next); \ - __asm__ __volatile__( \ - "mov %%g4, %%g7\n\t" \ - "stx %%i6, [%%sp + 2047 + 0x70]\n\t" \ - "stx %%i7, [%%sp + 2047 + 0x78]\n\t" \ - "rdpr %%wstate, %%o5\n\t" \ - "stx %%o6, [%%g6 + %6]\n\t" \ - "stb %%o5, [%%g6 + %5]\n\t" \ - "rdpr %%cwp, %%o5\n\t" \ - "stb %%o5, [%%g6 + %8]\n\t" \ - "mov %4, %%g6\n\t" \ - "ldub [%4 + %8], %%g1\n\t" \ - "wrpr %%g1, %%cwp\n\t" \ - "ldx [%%g6 + %6], %%o6\n\t" \ - "ldub [%%g6 + %5], %%o5\n\t" \ - "ldub [%%g6 + %7], %%o7\n\t" \ - "wrpr %%o5, 0x0, %%wstate\n\t" \ - "ldx [%%sp + 2047 + 0x70], %%i6\n\t" \ - "ldx [%%sp + 2047 + 0x78], %%i7\n\t" \ - "ldx [%%g6 + %9], %%g4\n\t" \ - "brz,pt %%o7, switch_to_pc\n\t" \ - " mov %%g7, %0\n\t" \ - "sethi %%hi(ret_from_syscall), %%g1\n\t" \ - "jmpl %%g1 + %%lo(ret_from_syscall), %%g0\n\t" \ - " nop\n\t" \ - ".globl switch_to_pc\n\t" \ - "switch_to_pc:\n\t" \ - : "=&r" (last), "=r" (current), "=r" (current_thread_info_reg), \ - "=r" (__local_per_cpu_offset) \ - : "0" (task_thread_info(next)), \ - "i" (TI_WSTATE), "i" (TI_KSP), "i" (TI_NEW_CHILD), \ - "i" (TI_CWP), "i" (TI_TASK) \ - : "cc", \ - "g1", "g2", "g3", "g7", \ - "l1", "l2", "l3", "l4", "l5", "l6", "l7", \ - "i0", "i1", "i2", "i3", "i4", "i5", \ - "o0", "o1", "o2", "o3", "o4", "o5", "o7"); \ - /* If you fuck with this, update ret_from_syscall code too. */ \ - if (test_thread_flag(TIF_PERFCTR)) { \ - write_pcr(current_thread_info()->pcr_reg); \ - reset_pic(); \ - } \ -} while(0) - -static inline unsigned long xchg32(__volatile__ unsigned int *m, unsigned int val) -{ - unsigned long tmp1, tmp2; - - __asm__ __volatile__( -" membar #StoreLoad | #LoadLoad\n" -" mov %0, %1\n" -"1: lduw [%4], %2\n" -" cas [%4], %2, %0\n" -" cmp %2, %0\n" -" bne,a,pn %%icc, 1b\n" -" mov %1, %0\n" -" membar #StoreLoad | #StoreStore\n" - : "=&r" (val), "=&r" (tmp1), "=&r" (tmp2) - : "0" (val), "r" (m) - : "cc", "memory"); - return val; -} - -static inline unsigned long xchg64(__volatile__ unsigned long *m, unsigned long val) -{ - unsigned long tmp1, tmp2; - - __asm__ __volatile__( -" membar #StoreLoad | #LoadLoad\n" -" mov %0, %1\n" -"1: ldx [%4], %2\n" -" casx [%4], %2, %0\n" -" cmp %2, %0\n" -" bne,a,pn %%xcc, 1b\n" -" mov %1, %0\n" -" membar #StoreLoad | #StoreStore\n" - : "=&r" (val), "=&r" (tmp1), "=&r" (tmp2) - : "0" (val), "r" (m) - : "cc", "memory"); - return val; -} - -#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) - -extern void __xchg_called_with_bad_pointer(void); - -static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, - int size) -{ - switch (size) { - case 4: - return xchg32(ptr, x); - case 8: - return xchg64(ptr, x); - }; - __xchg_called_with_bad_pointer(); - return x; -} - -extern void die_if_kernel(char *str, struct pt_regs *regs) __attribute__ ((noreturn)); - -/* - * Atomic compare and exchange. Compare OLD with MEM, if identical, - * store NEW in MEM. Return the initial value in MEM. Success is - * indicated by comparing RETURN with OLD. - */ - -#define __HAVE_ARCH_CMPXCHG 1 - -static inline unsigned long -__cmpxchg_u32(volatile int *m, int old, int new) -{ - __asm__ __volatile__("membar #StoreLoad | #LoadLoad\n" - "cas [%2], %3, %0\n\t" - "membar #StoreLoad | #StoreStore" - : "=&r" (new) - : "0" (new), "r" (m), "r" (old) - : "memory"); - - return new; -} - -static inline unsigned long -__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new) -{ - __asm__ __volatile__("membar #StoreLoad | #LoadLoad\n" - "casx [%2], %3, %0\n\t" - "membar #StoreLoad | #StoreStore" - : "=&r" (new) - : "0" (new), "r" (m), "r" (old) - : "memory"); - - return new; -} - -/* This function doesn't exist, so you'll get a linker error - if something tries to do an invalid cmpxchg(). */ -extern void __cmpxchg_called_with_bad_pointer(void); - -static inline unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) -{ - switch (size) { - case 4: - return __cmpxchg_u32(ptr, old, new); - case 8: - return __cmpxchg_u64(ptr, old, new); - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - -#define cmpxchg(ptr,o,n) \ - ({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, sizeof(*(ptr))); \ - }) - -/* - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make - * them available. - */ - -static inline unsigned long __cmpxchg_local(volatile void *ptr, - unsigned long old, - unsigned long new, int size) -{ - switch (size) { - case 4: - case 8: return __cmpxchg(ptr, old, new, size); - default: - return __cmpxchg_local_generic(ptr, old, new, size); - } - - return old; -} - -#define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) -#define cmpxchg64_local(ptr, o, n) \ - ({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ - }) - -#endif /* !(__ASSEMBLY__) */ - -#define arch_align_stack(x) (x) - -#endif /* !(__SPARC64_SYSTEM_H) */ +#include diff --git a/include/asm-sparc64/thread_info.h b/include/asm-sparc64/thread_info.h index e5873e385306..92bed7913395 100644 --- a/include/asm-sparc64/thread_info.h +++ b/include/asm-sparc64/thread_info.h @@ -1,277 +1 @@ -/* thread_info.h: sparc64 low-level thread information - * - * Copyright (C) 2002 David S. Miller (davem@redhat.com) - */ - -#ifndef _ASM_THREAD_INFO_H -#define _ASM_THREAD_INFO_H - -#ifdef __KERNEL__ - -#define NSWINS 7 - -#define TI_FLAG_BYTE_FAULT_CODE 0 -#define TI_FLAG_FAULT_CODE_SHIFT 56 -#define TI_FLAG_BYTE_WSTATE 1 -#define TI_FLAG_WSTATE_SHIFT 48 -#define TI_FLAG_BYTE_CWP 2 -#define TI_FLAG_CWP_SHIFT 40 -#define TI_FLAG_BYTE_CURRENT_DS 3 -#define TI_FLAG_CURRENT_DS_SHIFT 32 -#define TI_FLAG_BYTE_FPDEPTH 4 -#define TI_FLAG_FPDEPTH_SHIFT 24 -#define TI_FLAG_BYTE_WSAVED 5 -#define TI_FLAG_WSAVED_SHIFT 16 - -#include - -#ifndef __ASSEMBLY__ - -#include -#include - -struct task_struct; -struct exec_domain; - -struct thread_info { - /* D$ line 1 */ - struct task_struct *task; - unsigned long flags; - __u8 fpsaved[7]; - __u8 status; - unsigned long ksp; - - /* D$ line 2 */ - unsigned long fault_address; - struct pt_regs *kregs; - struct exec_domain *exec_domain; - int preempt_count; /* 0 => preemptable, <0 => BUG */ - __u8 new_child; - __u8 syscall_noerror; - __u16 cpu; - - unsigned long *utraps; - - struct reg_window reg_window[NSWINS]; - unsigned long rwbuf_stkptrs[NSWINS]; - - unsigned long gsr[7]; - unsigned long xfsr[7]; - - __u64 __user *user_cntd0; - __u64 __user *user_cntd1; - __u64 kernel_cntd0, kernel_cntd1; - __u64 pcr_reg; - - struct restart_block restart_block; - - struct pt_regs *kern_una_regs; - unsigned int kern_una_insn; - - unsigned long fpregs[0] __attribute__ ((aligned(64))); -}; - -#endif /* !(__ASSEMBLY__) */ - -/* offsets into the thread_info struct for assembly code access */ -#define TI_TASK 0x00000000 -#define TI_FLAGS 0x00000008 -#define TI_FAULT_CODE (TI_FLAGS + TI_FLAG_BYTE_FAULT_CODE) -#define TI_WSTATE (TI_FLAGS + TI_FLAG_BYTE_WSTATE) -#define TI_CWP (TI_FLAGS + TI_FLAG_BYTE_CWP) -#define TI_CURRENT_DS (TI_FLAGS + TI_FLAG_BYTE_CURRENT_DS) -#define TI_FPDEPTH (TI_FLAGS + TI_FLAG_BYTE_FPDEPTH) -#define TI_WSAVED (TI_FLAGS + TI_FLAG_BYTE_WSAVED) -#define TI_FPSAVED 0x00000010 -#define TI_KSP 0x00000018 -#define TI_FAULT_ADDR 0x00000020 -#define TI_KREGS 0x00000028 -#define TI_EXEC_DOMAIN 0x00000030 -#define TI_PRE_COUNT 0x00000038 -#define TI_NEW_CHILD 0x0000003c -#define TI_SYS_NOERROR 0x0000003d -#define TI_CPU 0x0000003e -#define TI_UTRAPS 0x00000040 -#define TI_REG_WINDOW 0x00000048 -#define TI_RWIN_SPTRS 0x000003c8 -#define TI_GSR 0x00000400 -#define TI_XFSR 0x00000438 -#define TI_USER_CNTD0 0x00000470 -#define TI_USER_CNTD1 0x00000478 -#define TI_KERN_CNTD0 0x00000480 -#define TI_KERN_CNTD1 0x00000488 -#define TI_PCR 0x00000490 -#define TI_RESTART_BLOCK 0x00000498 -#define TI_KUNA_REGS 0x000004c0 -#define TI_KUNA_INSN 0x000004c8 -#define TI_FPREGS 0x00000500 - -/* We embed this in the uppermost byte of thread_info->flags */ -#define FAULT_CODE_WRITE 0x01 /* Write access, implies D-TLB */ -#define FAULT_CODE_DTLB 0x02 /* Miss happened in D-TLB */ -#define FAULT_CODE_ITLB 0x04 /* Miss happened in I-TLB */ -#define FAULT_CODE_WINFIXUP 0x08 /* Miss happened during spill/fill */ -#define FAULT_CODE_BLKCOMMIT 0x10 /* Use blk-commit ASI in copy_page */ - -#if PAGE_SHIFT == 13 -#define THREAD_SIZE (2*PAGE_SIZE) -#define THREAD_SHIFT (PAGE_SHIFT + 1) -#else /* PAGE_SHIFT == 13 */ -#define THREAD_SIZE PAGE_SIZE -#define THREAD_SHIFT PAGE_SHIFT -#endif /* PAGE_SHIFT == 13 */ - -#define PREEMPT_ACTIVE 0x4000000 - -/* - * macros/functions for gaining access to the thread information structure - * - * preempt_count needs to be 1 initially, until the scheduler is functional. - */ -#ifndef __ASSEMBLY__ - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .flags = ((unsigned long)ASI_P) << TI_FLAG_CURRENT_DS_SHIFT, \ - .exec_domain = &default_exec_domain, \ - .preempt_count = 1, \ - .restart_block = { \ - .fn = do_no_restart_syscall, \ - }, \ -} - -#define init_thread_info (init_thread_union.thread_info) -#define init_stack (init_thread_union.stack) - -/* how to get the thread information struct from C */ -register struct thread_info *current_thread_info_reg asm("g6"); -#define current_thread_info() (current_thread_info_reg) - -/* thread information allocation */ -#if PAGE_SHIFT == 13 -#define __THREAD_INFO_ORDER 1 -#else /* PAGE_SHIFT == 13 */ -#define __THREAD_INFO_ORDER 0 -#endif /* PAGE_SHIFT == 13 */ - -#ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ -({ \ - struct thread_info *ret; \ - \ - ret = (struct thread_info *) \ - __get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER); \ - if (ret) \ - memset(ret, 0, PAGE_SIZE<<__THREAD_INFO_ORDER); \ - ret; \ -}) -#else -#define alloc_thread_info(tsk) \ - ((struct thread_info *)__get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER)) -#endif - -#define free_thread_info(ti) \ - free_pages((unsigned long)(ti),__THREAD_INFO_ORDER) - -#define __thread_flag_byte_ptr(ti) \ - ((unsigned char *)(&((ti)->flags))) -#define __cur_thread_flag_byte_ptr __thread_flag_byte_ptr(current_thread_info()) - -#define get_thread_fault_code() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FAULT_CODE]) -#define set_thread_fault_code(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FAULT_CODE] = (val)) -#define get_thread_wstate() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSTATE]) -#define set_thread_wstate(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSTATE] = (val)) -#define get_thread_cwp() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CWP]) -#define set_thread_cwp(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CWP] = (val)) -#define get_thread_current_ds() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CURRENT_DS]) -#define set_thread_current_ds(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_CURRENT_DS] = (val)) -#define get_thread_fpdepth() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FPDEPTH]) -#define set_thread_fpdepth(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FPDEPTH] = (val)) -#define get_thread_wsaved() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSAVED]) -#define set_thread_wsaved(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_WSAVED] = (val)) - -#endif /* !(__ASSEMBLY__) */ - -/* - * Thread information flags, only 16 bits are available as we encode - * other values into the upper 6 bytes. - * - * On trap return we need to test several values: - * - * user: need_resched, notify_resume, sigpending, wsaved, perfctr - * kernel: fpdepth - * - * So to check for work in the kernel case we simply load the fpdepth - * byte out of the flags and test it. For the user case we encode the - * lower 3 bytes of flags as follows: - * ---------------------------------------- - * | wsaved | flags byte 1 | flags byte 2 | - * ---------------------------------------- - * This optimizes the user test into: - * ldx [%g6 + TI_FLAGS], REG1 - * sethi %hi(_TIF_USER_WORK_MASK), REG2 - * or REG2, %lo(_TIF_USER_WORK_MASK), REG2 - * andcc REG1, REG2, %g0 - * be,pt no_work_to_do - * nop - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -/* flags bit 1 is available */ -#define TIF_SIGPENDING 2 /* signal pending */ -#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ -#define TIF_PERFCTR 4 /* performance counters active */ -#define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */ -/* flag bit 6 is available */ -#define TIF_32BIT 7 /* 32-bit binary */ -/* flag bit 8 is available */ -#define TIF_SECCOMP 9 /* secure computing */ -#define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */ -/* flag bit 11 is available */ -/* NOTE: Thread flags >= 12 should be ones we have no interest - * in using in assembly, else we can't use the mask as - * an immediate value in instructions such as andcc. - */ -#define TIF_ABI_PENDING 12 -#define TIF_MEMDIE 13 -#define TIF_POLLING_NRFLAG 14 - -#define _TIF_SYSCALL_TRACE (1<status |= TS_RESTORE_SIGMASK; - set_bit(TIF_SIGPENDING, &ti->flags); -} -#endif /* !__ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_THREAD_INFO_H */ +#include diff --git a/include/asm-sparc64/timer.h b/include/asm-sparc64/timer.h index 5b779fd1f788..88026d83cc93 100644 --- a/include/asm-sparc64/timer.h +++ b/include/asm-sparc64/timer.h @@ -1,30 +1 @@ -/* timer.h: System timer definitions for sun5. - * - * Copyright (C) 1997, 2008 David S. Miller (davem@davemloft.net) - */ - -#ifndef _SPARC64_TIMER_H -#define _SPARC64_TIMER_H - -#include -#include - -struct sparc64_tick_ops { - unsigned long (*get_tick)(void); - int (*add_compare)(unsigned long); - unsigned long softint_mask; - void (*disable_irq)(void); - - void (*init_tick)(void); - unsigned long (*add_tick)(unsigned long); - - char *name; -}; - -extern struct sparc64_tick_ops *tick_ops; - -extern unsigned long sparc64_get_clock_tick(unsigned int cpu); -extern void __devinit setup_sparc64_timer(void); -extern void __init time_init(void); - -#endif /* _SPARC64_TIMER_H */ +#include diff --git a/include/asm-sparc64/timex.h b/include/asm-sparc64/timex.h index c622535c4560..8dd59ee24b48 100644 --- a/include/asm-sparc64/timex.h +++ b/include/asm-sparc64/timex.h @@ -1,19 +1 @@ -/* - * linux/include/asm-sparc64/timex.h - * - * sparc64 architecture timex specifications - */ -#ifndef _ASMsparc64_TIMEX_H -#define _ASMsparc64_TIMEX_H - -#include - -#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ - -/* Getting on the cycle counter on sparc64. */ -typedef unsigned long cycles_t; -#define get_cycles() tick_ops->get_tick() - -#define ARCH_HAS_READ_CURRENT_TIMER - -#endif +#include diff --git a/include/asm-sparc64/tlb.h b/include/asm-sparc64/tlb.h index ec81cdedef2c..ae92fce10936 100644 --- a/include/asm-sparc64/tlb.h +++ b/include/asm-sparc64/tlb.h @@ -1,111 +1 @@ -#ifndef _SPARC64_TLB_H -#define _SPARC64_TLB_H - -#include -#include -#include -#include -#include - -#define TLB_BATCH_NR 192 - -/* - * For UP we don't need to worry about TLB flush - * and page free order so much.. - */ -#ifdef CONFIG_SMP - #define FREE_PTE_NR 506 - #define tlb_fast_mode(bp) ((bp)->pages_nr == ~0U) -#else - #define FREE_PTE_NR 1 - #define tlb_fast_mode(bp) 1 -#endif - -struct mmu_gather { - struct mm_struct *mm; - unsigned int pages_nr; - unsigned int need_flush; - unsigned int fullmm; - unsigned int tlb_nr; - unsigned long vaddrs[TLB_BATCH_NR]; - struct page *pages[FREE_PTE_NR]; -}; - -DECLARE_PER_CPU(struct mmu_gather, mmu_gathers); - -#ifdef CONFIG_SMP -extern void smp_flush_tlb_pending(struct mm_struct *, - unsigned long, unsigned long *); -#endif - -extern void __flush_tlb_pending(unsigned long, unsigned long, unsigned long *); -extern void flush_tlb_pending(void); - -static inline struct mmu_gather *tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush) -{ - struct mmu_gather *mp = &get_cpu_var(mmu_gathers); - - BUG_ON(mp->tlb_nr); - - mp->mm = mm; - mp->pages_nr = num_online_cpus() > 1 ? 0U : ~0U; - mp->fullmm = full_mm_flush; - - return mp; -} - - -static inline void tlb_flush_mmu(struct mmu_gather *mp) -{ - if (mp->need_flush) { - free_pages_and_swap_cache(mp->pages, mp->pages_nr); - mp->pages_nr = 0; - mp->need_flush = 0; - } - -} - -#ifdef CONFIG_SMP -extern void smp_flush_tlb_mm(struct mm_struct *mm); -#define do_flush_tlb_mm(mm) smp_flush_tlb_mm(mm) -#else -#define do_flush_tlb_mm(mm) __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT) -#endif - -static inline void tlb_finish_mmu(struct mmu_gather *mp, unsigned long start, unsigned long end) -{ - tlb_flush_mmu(mp); - - if (mp->fullmm) - mp->fullmm = 0; - else - flush_tlb_pending(); - - /* keep the page table cache within bounds */ - check_pgt_cache(); - - put_cpu_var(mmu_gathers); -} - -static inline void tlb_remove_page(struct mmu_gather *mp, struct page *page) -{ - if (tlb_fast_mode(mp)) { - free_page_and_swap_cache(page); - return; - } - mp->need_flush = 1; - mp->pages[mp->pages_nr++] = page; - if (mp->pages_nr >= FREE_PTE_NR) - tlb_flush_mmu(mp); -} - -#define tlb_remove_tlb_entry(mp,ptep,addr) do { } while (0) -#define pte_free_tlb(mp, ptepage) pte_free((mp)->mm, ptepage) -#define pmd_free_tlb(mp, pmdp) pmd_free((mp)->mm, pmdp) -#define pud_free_tlb(tlb,pudp) __pud_free_tlb(tlb,pudp) - -#define tlb_migrate_finish(mm) do { } while (0) -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) - -#endif /* _SPARC64_TLB_H */ +#include diff --git a/include/asm-sparc64/tlbflush.h b/include/asm-sparc64/tlbflush.h index fbb675dbe0c9..a43979a06cd9 100644 --- a/include/asm-sparc64/tlbflush.h +++ b/include/asm-sparc64/tlbflush.h @@ -1,44 +1 @@ -#ifndef _SPARC64_TLBFLUSH_H -#define _SPARC64_TLBFLUSH_H - -#include -#include - -/* TSB flush operations. */ -struct mmu_gather; -extern void flush_tsb_kernel_range(unsigned long start, unsigned long end); -extern void flush_tsb_user(struct mmu_gather *mp); - -/* TLB flush operations. */ - -extern void flush_tlb_pending(void); - -#define flush_tlb_range(vma,start,end) \ - do { (void)(start); flush_tlb_pending(); } while (0) -#define flush_tlb_page(vma,addr) flush_tlb_pending() -#define flush_tlb_mm(mm) flush_tlb_pending() - -/* Local cpu only. */ -extern void __flush_tlb_all(void); - -extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end); - -#ifndef CONFIG_SMP - -#define flush_tlb_kernel_range(start,end) \ -do { flush_tsb_kernel_range(start,end); \ - __flush_tlb_kernel_range(start,end); \ -} while (0) - -#else /* CONFIG_SMP */ - -extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end); - -#define flush_tlb_kernel_range(start, end) \ -do { flush_tsb_kernel_range(start,end); \ - smp_flush_tlb_kernel_range(start, end); \ -} while (0) - -#endif /* ! CONFIG_SMP */ - -#endif /* _SPARC64_TLBFLUSH_H */ +#include diff --git a/include/asm-sparc64/topology.h b/include/asm-sparc64/topology.h index 001c04027c82..46999b60fbba 100644 --- a/include/asm-sparc64/topology.h +++ b/include/asm-sparc64/topology.h @@ -1,86 +1 @@ -#ifndef _ASM_SPARC64_TOPOLOGY_H -#define _ASM_SPARC64_TOPOLOGY_H - -#ifdef CONFIG_NUMA - -#include - -static inline int cpu_to_node(int cpu) -{ - return numa_cpu_lookup_table[cpu]; -} - -#define parent_node(node) (node) - -static inline cpumask_t node_to_cpumask(int node) -{ - return numa_cpumask_lookup_table[node]; -} - -/* Returns a pointer to the cpumask of CPUs on Node 'node'. */ -#define node_to_cpumask_ptr(v, node) \ - cpumask_t *v = &(numa_cpumask_lookup_table[node]) - -#define node_to_cpumask_ptr_next(v, node) \ - v = &(numa_cpumask_lookup_table[node]) - -static inline int node_to_first_cpu(int node) -{ - cpumask_t tmp; - tmp = node_to_cpumask(node); - return first_cpu(tmp); -} - -struct pci_bus; -#ifdef CONFIG_PCI -extern int pcibus_to_node(struct pci_bus *pbus); -#else -static inline int pcibus_to_node(struct pci_bus *pbus) -{ - return -1; -} -#endif - -#define pcibus_to_cpumask(bus) \ - (pcibus_to_node(bus) == -1 ? \ - CPU_MASK_ALL : \ - node_to_cpumask(pcibus_to_node(bus))) - -#define SD_NODE_INIT (struct sched_domain) { \ - .min_interval = 8, \ - .max_interval = 32, \ - .busy_factor = 32, \ - .imbalance_pct = 125, \ - .cache_nice_tries = 2, \ - .busy_idx = 3, \ - .idle_idx = 2, \ - .newidle_idx = 0, \ - .wake_idx = 1, \ - .forkexec_idx = 1, \ - .flags = SD_LOAD_BALANCE \ - | SD_BALANCE_FORK \ - | SD_BALANCE_EXEC \ - | SD_SERIALIZE \ - | SD_WAKE_BALANCE, \ - .last_balance = jiffies, \ - .balance_interval = 1, \ -} - -#else /* CONFIG_NUMA */ - -#include - -#endif /* !(CONFIG_NUMA) */ - -#ifdef CONFIG_SMP -#define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id) -#define topology_core_id(cpu) (cpu_data(cpu).core_id) -#define topology_core_siblings(cpu) (cpu_core_map[cpu]) -#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) -#define mc_capable() (sparc64_multi_core) -#define smt_capable() (sparc64_multi_core) -#endif /* CONFIG_SMP */ - -#define cpu_coregroup_map(cpu) (cpu_core_map[cpu]) - -#endif /* _ASM_SPARC64_TOPOLOGY_H */ +#include diff --git a/include/asm-sparc64/uaccess.h b/include/asm-sparc64/uaccess.h index 5fcbaf68c3f6..2872d22844f3 100644 --- a/include/asm-sparc64/uaccess.h +++ b/include/asm-sparc64/uaccess.h @@ -1,273 +1 @@ -#ifndef _ASM_UACCESS_H -#define _ASM_UACCESS_H - -/* - * User space memory access functions - */ - -#ifdef __KERNEL__ -#include -#include -#include -#include -#include -#include -#include -#endif - -#ifndef __ASSEMBLY__ - -/* - * Sparc64 is segmented, though more like the M68K than the I386. - * We use the secondary ASI to address user memory, which references a - * completely different VM map, thus there is zero chance of the user - * doing something queer and tricking us into poking kernel memory. - * - * What is left here is basically what is needed for the other parts of - * the kernel that expect to be able to manipulate, erum, "segments". - * Or perhaps more properly, permissions. - * - * "For historical reasons, these macros are grossly misnamed." -Linus - */ - -#define KERNEL_DS ((mm_segment_t) { ASI_P }) -#define USER_DS ((mm_segment_t) { ASI_AIUS }) /* har har har */ - -#define VERIFY_READ 0 -#define VERIFY_WRITE 1 - -#define get_fs() ((mm_segment_t) { get_thread_current_ds() }) -#define get_ds() (KERNEL_DS) - -#define segment_eq(a,b) ((a).seg == (b).seg) - -#define set_fs(val) \ -do { \ - set_thread_current_ds((val).seg); \ - __asm__ __volatile__ ("wr %%g0, %0, %%asi" : : "r" ((val).seg)); \ -} while(0) - -static inline int __access_ok(const void __user * addr, unsigned long size) -{ - return 1; -} - -static inline int access_ok(int type, const void __user * addr, unsigned long size) -{ - return 1; -} - -/* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is - * the address at which the program should continue. No registers are - * modified, so it is entirely up to the continuation code to figure out - * what to do. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - */ - -struct exception_table_entry { - unsigned int insn, fixup; -}; - -extern void __ret_efault(void); -extern void __retl_efault(void); - -/* Uh, these should become the main single-value transfer routines.. - * They automatically use the right size if we just have the right - * pointer type.. - * - * This gets kind of ugly. We want to return _two_ values in "get_user()" - * and yet we don't want to do any pointers, because that is too much - * of a performance impact. Thus we have a few rather ugly macros here, - * and hide all the ugliness from the user. - */ -#define put_user(x,ptr) ({ \ -unsigned long __pu_addr = (unsigned long)(ptr); \ -__chk_user_ptr(ptr); \ -__put_user_nocheck((__typeof__(*(ptr)))(x),__pu_addr,sizeof(*(ptr))); }) - -#define get_user(x,ptr) ({ \ -unsigned long __gu_addr = (unsigned long)(ptr); \ -__chk_user_ptr(ptr); \ -__get_user_nocheck((x),__gu_addr,sizeof(*(ptr)),__typeof__(*(ptr))); }) - -#define __put_user(x,ptr) put_user(x,ptr) -#define __get_user(x,ptr) get_user(x,ptr) - -struct __large_struct { unsigned long buf[100]; }; -#define __m(x) ((struct __large_struct *)(x)) - -#define __put_user_nocheck(data,addr,size) ({ \ -register int __pu_ret; \ -switch (size) { \ -case 1: __put_user_asm(data,b,addr,__pu_ret); break; \ -case 2: __put_user_asm(data,h,addr,__pu_ret); break; \ -case 4: __put_user_asm(data,w,addr,__pu_ret); break; \ -case 8: __put_user_asm(data,x,addr,__pu_ret); break; \ -default: __pu_ret = __put_user_bad(); break; \ -} __pu_ret; }) - -#define __put_user_asm(x,size,addr,ret) \ -__asm__ __volatile__( \ - "/* Put user asm, inline. */\n" \ -"1:\t" "st"#size "a %1, [%2] %%asi\n\t" \ - "clr %0\n" \ -"2:\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ -"3:\n\t" \ - "sethi %%hi(2b), %0\n\t" \ - "jmpl %0 + %%lo(2b), %%g0\n\t" \ - " mov %3, %0\n\n\t" \ - ".previous\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\t" \ - ".previous\n\n\t" \ - : "=r" (ret) : "r" (x), "r" (__m(addr)), \ - "i" (-EFAULT)) - -extern int __put_user_bad(void); - -#define __get_user_nocheck(data,addr,size,type) ({ \ -register int __gu_ret; \ -register unsigned long __gu_val; \ -switch (size) { \ -case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ -case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ -case 4: __get_user_asm(__gu_val,uw,addr,__gu_ret); break; \ -case 8: __get_user_asm(__gu_val,x,addr,__gu_ret); break; \ -default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ -} data = (type) __gu_val; __gu_ret; }) - -#define __get_user_nocheck_ret(data,addr,size,type,retval) ({ \ -register unsigned long __gu_val __asm__ ("l1"); \ -switch (size) { \ -case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ -case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ -case 4: __get_user_asm_ret(__gu_val,uw,addr,retval); break; \ -case 8: __get_user_asm_ret(__gu_val,x,addr,retval); break; \ -default: if (__get_user_bad()) return retval; \ -} data = (type) __gu_val; }) - -#define __get_user_asm(x,size,addr,ret) \ -__asm__ __volatile__( \ - "/* Get user asm, inline. */\n" \ -"1:\t" "ld"#size "a [%2] %%asi, %1\n\t" \ - "clr %0\n" \ -"2:\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ -"3:\n\t" \ - "sethi %%hi(2b), %0\n\t" \ - "clr %1\n\t" \ - "jmpl %0 + %%lo(2b), %%g0\n\t" \ - " mov %3, %0\n\n\t" \ - ".previous\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\n\t" \ - ".previous\n\t" \ - : "=r" (ret), "=r" (x) : "r" (__m(addr)), \ - "i" (-EFAULT)) - -#define __get_user_asm_ret(x,size,addr,retval) \ -if (__builtin_constant_p(retval) && retval == -EFAULT) \ -__asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ -"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b,__ret_efault\n\n\t" \ - ".previous\n\t" \ - : "=r" (x) : "r" (__m(addr))); \ -else \ -__asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ -"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ -"3:\n\t" \ - "ret\n\t" \ - " restore %%g0, %2, %%o0\n\n\t" \ - ".previous\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\n\t" \ - ".previous\n\t" \ - : "=r" (x) : "r" (__m(addr)), "i" (retval)) - -extern int __get_user_bad(void); - -extern unsigned long __must_check ___copy_from_user(void *to, - const void __user *from, - unsigned long size); -extern unsigned long copy_from_user_fixup(void *to, const void __user *from, - unsigned long size); -static inline unsigned long __must_check -copy_from_user(void *to, const void __user *from, unsigned long size) -{ - unsigned long ret = ___copy_from_user(to, from, size); - - if (unlikely(ret)) - ret = copy_from_user_fixup(to, from, size); - return ret; -} -#define __copy_from_user copy_from_user - -extern unsigned long __must_check ___copy_to_user(void __user *to, - const void *from, - unsigned long size); -extern unsigned long copy_to_user_fixup(void __user *to, const void *from, - unsigned long size); -static inline unsigned long __must_check -copy_to_user(void __user *to, const void *from, unsigned long size) -{ - unsigned long ret = ___copy_to_user(to, from, size); - - if (unlikely(ret)) - ret = copy_to_user_fixup(to, from, size); - return ret; -} -#define __copy_to_user copy_to_user - -extern unsigned long __must_check ___copy_in_user(void __user *to, - const void __user *from, - unsigned long size); -extern unsigned long copy_in_user_fixup(void __user *to, void __user *from, - unsigned long size); -static inline unsigned long __must_check -copy_in_user(void __user *to, void __user *from, unsigned long size) -{ - unsigned long ret = ___copy_in_user(to, from, size); - - if (unlikely(ret)) - ret = copy_in_user_fixup(to, from, size); - return ret; -} -#define __copy_in_user copy_in_user - -extern unsigned long __must_check __clear_user(void __user *, unsigned long); - -#define clear_user __clear_user - -extern long __must_check __strncpy_from_user(char *dest, const char __user *src, long count); - -#define strncpy_from_user __strncpy_from_user - -extern long __strlen_user(const char __user *); -extern long __strnlen_user(const char __user *, long len); - -#define strlen_user __strlen_user -#define strnlen_user __strnlen_user -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_UACCESS_H */ +#include diff --git a/include/asm-sparc64/unistd.h b/include/asm-sparc64/unistd.h index 13be4453a1f0..ad86e0b7a455 100644 --- a/include/asm-sparc64/unistd.h +++ b/include/asm-sparc64/unistd.h @@ -1,373 +1 @@ -#ifndef _SPARC64_UNISTD_H -#define _SPARC64_UNISTD_H - -/* - * System calls under the Sparc. - * - * Don't be scared by the ugly clobbers, it is the only way I can - * think of right now to force the arguments into fixed registers - * before the trap into the system call with gcc 'asm' statements. - * - * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) - * - * SunOS compatibility based upon preliminary work which is: - * - * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) - */ - -#define __NR_restart_syscall 0 /* Linux Specific */ -#define __NR_exit 1 /* Common */ -#define __NR_fork 2 /* Common */ -#define __NR_read 3 /* Common */ -#define __NR_write 4 /* Common */ -#define __NR_open 5 /* Common */ -#define __NR_close 6 /* Common */ -#define __NR_wait4 7 /* Common */ -#define __NR_creat 8 /* Common */ -#define __NR_link 9 /* Common */ -#define __NR_unlink 10 /* Common */ -#define __NR_execv 11 /* SunOS Specific */ -#define __NR_chdir 12 /* Common */ -#define __NR_chown 13 /* Common */ -#define __NR_mknod 14 /* Common */ -#define __NR_chmod 15 /* Common */ -#define __NR_lchown 16 /* Common */ -#define __NR_brk 17 /* Common */ -#define __NR_perfctr 18 /* Performance counter operations */ -#define __NR_lseek 19 /* Common */ -#define __NR_getpid 20 /* Common */ -#define __NR_capget 21 /* Linux Specific */ -#define __NR_capset 22 /* Linux Specific */ -#define __NR_setuid 23 /* Implemented via setreuid in SunOS */ -#define __NR_getuid 24 /* Common */ -#define __NR_vmsplice 25 /* ENOSYS under SunOS */ -#define __NR_ptrace 26 /* Common */ -#define __NR_alarm 27 /* Implemented via setitimer in SunOS */ -#define __NR_sigaltstack 28 /* Common */ -#define __NR_pause 29 /* Is sigblock(0)->sigpause() in SunOS */ -#define __NR_utime 30 /* Implemented via utimes() under SunOS */ -/* #define __NR_lchown32 31 Linux sparc32 specific */ -/* #define __NR_fchown32 32 Linux sparc32 specific */ -#define __NR_access 33 /* Common */ -#define __NR_nice 34 /* Implemented via get/setpriority() in SunOS */ -/* #define __NR_chown32 35 Linux sparc32 specific */ -#define __NR_sync 36 /* Common */ -#define __NR_kill 37 /* Common */ -#define __NR_stat 38 /* Common */ -#define __NR_sendfile 39 /* Linux Specific */ -#define __NR_lstat 40 /* Common */ -#define __NR_dup 41 /* Common */ -#define __NR_pipe 42 /* Common */ -#define __NR_times 43 /* Implemented via getrusage() in SunOS */ -/* #define __NR_getuid32 44 Linux sparc32 specific */ -#define __NR_umount2 45 /* Linux Specific */ -#define __NR_setgid 46 /* Implemented via setregid() in SunOS */ -#define __NR_getgid 47 /* Common */ -#define __NR_signal 48 /* Implemented via sigvec() in SunOS */ -#define __NR_geteuid 49 /* SunOS calls getuid() */ -#define __NR_getegid 50 /* SunOS calls getgid() */ -#define __NR_acct 51 /* Common */ -#define __NR_memory_ordering 52 /* Linux Specific */ -/* #define __NR_getgid32 53 Linux sparc32 specific */ -#define __NR_ioctl 54 /* Common */ -#define __NR_reboot 55 /* Common */ -/* #define __NR_mmap2 56 Linux sparc32 Specific */ -#define __NR_symlink 57 /* Common */ -#define __NR_readlink 58 /* Common */ -#define __NR_execve 59 /* Common */ -#define __NR_umask 60 /* Common */ -#define __NR_chroot 61 /* Common */ -#define __NR_fstat 62 /* Common */ -#define __NR_fstat64 63 /* Linux Specific */ -#define __NR_getpagesize 64 /* Common */ -#define __NR_msync 65 /* Common in newer 1.3.x revs... */ -#define __NR_vfork 66 /* Common */ -#define __NR_pread64 67 /* Linux Specific */ -#define __NR_pwrite64 68 /* Linux Specific */ -/* #define __NR_geteuid32 69 Linux sparc32, sbrk under SunOS */ -/* #define __NR_getegid32 70 Linux sparc32, sstk under SunOS */ -#define __NR_mmap 71 /* Common */ -/* #define __NR_setreuid32 72 Linux sparc32, vadvise under SunOS */ -#define __NR_munmap 73 /* Common */ -#define __NR_mprotect 74 /* Common */ -#define __NR_madvise 75 /* Common */ -#define __NR_vhangup 76 /* Common */ -/* #define __NR_truncate64 77 Linux sparc32 Specific */ -#define __NR_mincore 78 /* Common */ -#define __NR_getgroups 79 /* Common */ -#define __NR_setgroups 80 /* Common */ -#define __NR_getpgrp 81 /* Common */ -/* #define __NR_setgroups32 82 Linux sparc32, setpgrp under SunOS */ -#define __NR_setitimer 83 /* Common */ -/* #define __NR_ftruncate64 84 Linux sparc32 Specific */ -#define __NR_swapon 85 /* Common */ -#define __NR_getitimer 86 /* Common */ -/* #define __NR_setuid32 87 Linux sparc32, gethostname under SunOS */ -#define __NR_sethostname 88 /* Common */ -/* #define __NR_setgid32 89 Linux sparc32, getdtablesize under SunOS */ -#define __NR_dup2 90 /* Common */ -/* #define __NR_setfsuid32 91 Linux sparc32, getdopt under SunOS */ -#define __NR_fcntl 92 /* Common */ -#define __NR_select 93 /* Common */ -/* #define __NR_setfsgid32 94 Linux sparc32, setdopt under SunOS */ -#define __NR_fsync 95 /* Common */ -#define __NR_setpriority 96 /* Common */ -#define __NR_socket 97 /* Common */ -#define __NR_connect 98 /* Common */ -#define __NR_accept 99 /* Common */ -#define __NR_getpriority 100 /* Common */ -#define __NR_rt_sigreturn 101 /* Linux Specific */ -#define __NR_rt_sigaction 102 /* Linux Specific */ -#define __NR_rt_sigprocmask 103 /* Linux Specific */ -#define __NR_rt_sigpending 104 /* Linux Specific */ -#define __NR_rt_sigtimedwait 105 /* Linux Specific */ -#define __NR_rt_sigqueueinfo 106 /* Linux Specific */ -#define __NR_rt_sigsuspend 107 /* Linux Specific */ -#define __NR_setresuid 108 /* Linux Specific, sigvec under SunOS */ -#define __NR_getresuid 109 /* Linux Specific, sigblock under SunOS */ -#define __NR_setresgid 110 /* Linux Specific, sigsetmask under SunOS */ -#define __NR_getresgid 111 /* Linux Specific, sigpause under SunOS */ -/* #define __NR_setregid32 75 Linux sparc32, sigstack under SunOS */ -#define __NR_recvmsg 113 /* Common */ -#define __NR_sendmsg 114 /* Common */ -/* #define __NR_getgroups32 115 Linux sparc32, vtrace under SunOS */ -#define __NR_gettimeofday 116 /* Common */ -#define __NR_getrusage 117 /* Common */ -#define __NR_getsockopt 118 /* Common */ -#define __NR_getcwd 119 /* Linux Specific */ -#define __NR_readv 120 /* Common */ -#define __NR_writev 121 /* Common */ -#define __NR_settimeofday 122 /* Common */ -#define __NR_fchown 123 /* Common */ -#define __NR_fchmod 124 /* Common */ -#define __NR_recvfrom 125 /* Common */ -#define __NR_setreuid 126 /* Common */ -#define __NR_setregid 127 /* Common */ -#define __NR_rename 128 /* Common */ -#define __NR_truncate 129 /* Common */ -#define __NR_ftruncate 130 /* Common */ -#define __NR_flock 131 /* Common */ -#define __NR_lstat64 132 /* Linux Specific */ -#define __NR_sendto 133 /* Common */ -#define __NR_shutdown 134 /* Common */ -#define __NR_socketpair 135 /* Common */ -#define __NR_mkdir 136 /* Common */ -#define __NR_rmdir 137 /* Common */ -#define __NR_utimes 138 /* SunOS Specific */ -#define __NR_stat64 139 /* Linux Specific */ -#define __NR_sendfile64 140 /* adjtime under SunOS */ -#define __NR_getpeername 141 /* Common */ -#define __NR_futex 142 /* gethostid under SunOS */ -#define __NR_gettid 143 /* ENOSYS under SunOS */ -#define __NR_getrlimit 144 /* Common */ -#define __NR_setrlimit 145 /* Common */ -#define __NR_pivot_root 146 /* Linux Specific, killpg under SunOS */ -#define __NR_prctl 147 /* ENOSYS under SunOS */ -#define __NR_pciconfig_read 148 /* ENOSYS under SunOS */ -#define __NR_pciconfig_write 149 /* ENOSYS under SunOS */ -#define __NR_getsockname 150 /* Common */ -#define __NR_inotify_init 151 /* Linux specific */ -#define __NR_inotify_add_watch 152 /* Linux specific */ -#define __NR_poll 153 /* Common */ -#define __NR_getdents64 154 /* Linux specific */ -/* #define __NR_fcntl64 155 Linux sparc32 Specific */ -#define __NR_inotify_rm_watch 156 /* Linux specific */ -#define __NR_statfs 157 /* Common */ -#define __NR_fstatfs 158 /* Common */ -#define __NR_umount 159 /* Common */ -#define __NR_sched_set_affinity 160 /* Linux specific, async_daemon under SunOS */ -#define __NR_sched_get_affinity 161 /* Linux specific, getfh under SunOS */ -#define __NR_getdomainname 162 /* SunOS Specific */ -#define __NR_setdomainname 163 /* Common */ -#define __NR_utrap_install 164 /* SYSV ABI/v9 required */ -#define __NR_quotactl 165 /* Common */ -#define __NR_set_tid_address 166 /* Linux specific, exportfs under SunOS */ -#define __NR_mount 167 /* Common */ -#define __NR_ustat 168 /* Common */ -#define __NR_setxattr 169 /* SunOS: semsys */ -#define __NR_lsetxattr 170 /* SunOS: msgsys */ -#define __NR_fsetxattr 171 /* SunOS: shmsys */ -#define __NR_getxattr 172 /* SunOS: auditsys */ -#define __NR_lgetxattr 173 /* SunOS: rfssys */ -#define __NR_getdents 174 /* Common */ -#define __NR_setsid 175 /* Common */ -#define __NR_fchdir 176 /* Common */ -#define __NR_fgetxattr 177 /* SunOS: fchroot */ -#define __NR_listxattr 178 /* SunOS: vpixsys */ -#define __NR_llistxattr 179 /* SunOS: aioread */ -#define __NR_flistxattr 180 /* SunOS: aiowrite */ -#define __NR_removexattr 181 /* SunOS: aiowait */ -#define __NR_lremovexattr 182 /* SunOS: aiocancel */ -#define __NR_sigpending 183 /* Common */ -#define __NR_query_module 184 /* Linux Specific */ -#define __NR_setpgid 185 /* Common */ -#define __NR_fremovexattr 186 /* SunOS: pathconf */ -#define __NR_tkill 187 /* SunOS: fpathconf */ -#define __NR_exit_group 188 /* Linux specific, sysconf undef SunOS */ -#define __NR_uname 189 /* Linux Specific */ -#define __NR_init_module 190 /* Linux Specific */ -#define __NR_personality 191 /* Linux Specific */ -#define __NR_remap_file_pages 192 /* Linux Specific */ -#define __NR_epoll_create 193 /* Linux Specific */ -#define __NR_epoll_ctl 194 /* Linux Specific */ -#define __NR_epoll_wait 195 /* Linux Specific */ -#define __NR_ioprio_set 196 /* Linux Specific */ -#define __NR_getppid 197 /* Linux Specific */ -#define __NR_sigaction 198 /* Linux Specific */ -#define __NR_sgetmask 199 /* Linux Specific */ -#define __NR_ssetmask 200 /* Linux Specific */ -#define __NR_sigsuspend 201 /* Linux Specific */ -#define __NR_oldlstat 202 /* Linux Specific */ -#define __NR_uselib 203 /* Linux Specific */ -#define __NR_readdir 204 /* Linux Specific */ -#define __NR_readahead 205 /* Linux Specific */ -#define __NR_socketcall 206 /* Linux Specific */ -#define __NR_syslog 207 /* Linux Specific */ -#define __NR_lookup_dcookie 208 /* Linux Specific */ -#define __NR_fadvise64 209 /* Linux Specific */ -#define __NR_fadvise64_64 210 /* Linux Specific */ -#define __NR_tgkill 211 /* Linux Specific */ -#define __NR_waitpid 212 /* Linux Specific */ -#define __NR_swapoff 213 /* Linux Specific */ -#define __NR_sysinfo 214 /* Linux Specific */ -#define __NR_ipc 215 /* Linux Specific */ -#define __NR_sigreturn 216 /* Linux Specific */ -#define __NR_clone 217 /* Linux Specific */ -#define __NR_ioprio_get 218 /* Linux Specific */ -#define __NR_adjtimex 219 /* Linux Specific */ -#define __NR_sigprocmask 220 /* Linux Specific */ -#define __NR_create_module 221 /* Linux Specific */ -#define __NR_delete_module 222 /* Linux Specific */ -#define __NR_get_kernel_syms 223 /* Linux Specific */ -#define __NR_getpgid 224 /* Linux Specific */ -#define __NR_bdflush 225 /* Linux Specific */ -#define __NR_sysfs 226 /* Linux Specific */ -#define __NR_afs_syscall 227 /* Linux Specific */ -#define __NR_setfsuid 228 /* Linux Specific */ -#define __NR_setfsgid 229 /* Linux Specific */ -#define __NR__newselect 230 /* Linux Specific */ -#ifdef __KERNEL__ -#define __NR_time 231 /* Linux sparc32 */ -#endif -#define __NR_splice 232 /* Linux Specific */ -#define __NR_stime 233 /* Linux Specific */ -#define __NR_statfs64 234 /* Linux Specific */ -#define __NR_fstatfs64 235 /* Linux Specific */ -#define __NR__llseek 236 /* Linux Specific */ -#define __NR_mlock 237 -#define __NR_munlock 238 -#define __NR_mlockall 239 -#define __NR_munlockall 240 -#define __NR_sched_setparam 241 -#define __NR_sched_getparam 242 -#define __NR_sched_setscheduler 243 -#define __NR_sched_getscheduler 244 -#define __NR_sched_yield 245 -#define __NR_sched_get_priority_max 246 -#define __NR_sched_get_priority_min 247 -#define __NR_sched_rr_get_interval 248 -#define __NR_nanosleep 249 -#define __NR_mremap 250 -#define __NR__sysctl 251 -#define __NR_getsid 252 -#define __NR_fdatasync 253 -#define __NR_nfsservctl 254 -#define __NR_sync_file_range 255 -#define __NR_clock_settime 256 -#define __NR_clock_gettime 257 -#define __NR_clock_getres 258 -#define __NR_clock_nanosleep 259 -#define __NR_sched_getaffinity 260 -#define __NR_sched_setaffinity 261 -#define __NR_timer_settime 262 -#define __NR_timer_gettime 263 -#define __NR_timer_getoverrun 264 -#define __NR_timer_delete 265 -#define __NR_timer_create 266 -/* #define __NR_vserver 267 Reserved for VSERVER */ -#define __NR_io_setup 268 -#define __NR_io_destroy 269 -#define __NR_io_submit 270 -#define __NR_io_cancel 271 -#define __NR_io_getevents 272 -#define __NR_mq_open 273 -#define __NR_mq_unlink 274 -#define __NR_mq_timedsend 275 -#define __NR_mq_timedreceive 276 -#define __NR_mq_notify 277 -#define __NR_mq_getsetattr 278 -#define __NR_waitid 279 -#define __NR_tee 280 -#define __NR_add_key 281 -#define __NR_request_key 282 -#define __NR_keyctl 283 -#define __NR_openat 284 -#define __NR_mkdirat 285 -#define __NR_mknodat 286 -#define __NR_fchownat 287 -#define __NR_futimesat 288 -#define __NR_fstatat64 289 -#define __NR_unlinkat 290 -#define __NR_renameat 291 -#define __NR_linkat 292 -#define __NR_symlinkat 293 -#define __NR_readlinkat 294 -#define __NR_fchmodat 295 -#define __NR_faccessat 296 -#define __NR_pselect6 297 -#define __NR_ppoll 298 -#define __NR_unshare 299 -#define __NR_set_robust_list 300 -#define __NR_get_robust_list 301 -#define __NR_migrate_pages 302 -#define __NR_mbind 303 -#define __NR_get_mempolicy 304 -#define __NR_set_mempolicy 305 -#define __NR_kexec_load 306 -#define __NR_move_pages 307 -#define __NR_getcpu 308 -#define __NR_epoll_pwait 309 -#define __NR_utimensat 310 -#define __NR_signalfd 311 -#define __NR_timerfd_create 312 -#define __NR_eventfd 313 -#define __NR_fallocate 314 -#define __NR_timerfd_settime 315 -#define __NR_timerfd_gettime 316 - -#define NR_SYSCALLS 317 - -#ifdef __KERNEL__ -#define __ARCH_WANT_IPC_PARSE_VERSION -#define __ARCH_WANT_OLD_READDIR -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_SYS_ALARM -#define __ARCH_WANT_SYS_GETHOSTNAME -#define __ARCH_WANT_SYS_PAUSE -#define __ARCH_WANT_SYS_SGETMASK -#define __ARCH_WANT_SYS_SIGNAL -#define __ARCH_WANT_SYS_TIME -#define __ARCH_WANT_COMPAT_SYS_TIME -#define __ARCH_WANT_SYS_UTIME -#define __ARCH_WANT_SYS_WAITPID -#define __ARCH_WANT_SYS_SOCKETCALL -#define __ARCH_WANT_SYS_FADVISE64 -#define __ARCH_WANT_SYS_GETPGRP -#define __ARCH_WANT_SYS_LLSEEK -#define __ARCH_WANT_SYS_NICE -#define __ARCH_WANT_SYS_OLDUMOUNT -#define __ARCH_WANT_SYS_SIGPENDING -#define __ARCH_WANT_SYS_SIGPROCMASK -#define __ARCH_WANT_SYS_RT_SIGSUSPEND -#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND - -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - -#endif /* __KERNEL__ */ -#endif /* _SPARC64_UNISTD_H */ +#include diff --git a/include/asm-sparc64/xor.h b/include/asm-sparc64/xor.h index a0233884fc94..ef187cc07ed5 100644 --- a/include/asm-sparc64/xor.h +++ b/include/asm-sparc64/xor.h @@ -1,70 +1 @@ -/* - * include/asm-sparc64/xor.h - * - * High speed xor_block operation for RAID4/5 utilizing the - * UltraSparc Visual Instruction Set and Niagara block-init - * twin-load instructions. - * - * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) - * Copyright (C) 2006 David S. Miller - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * You should have received a copy of the GNU General Public License - * (for example /usr/src/linux/COPYING); if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include - -extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *); -extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *, - unsigned long *); -extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *); -extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *, unsigned long *); - -/* XXX Ugh, write cheetah versions... -DaveM */ - -static struct xor_block_template xor_block_VIS = { - .name = "VIS", - .do_2 = xor_vis_2, - .do_3 = xor_vis_3, - .do_4 = xor_vis_4, - .do_5 = xor_vis_5, -}; - -extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); -extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, - unsigned long *); -extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *); -extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *, unsigned long *); - -static struct xor_block_template xor_block_niagara = { - .name = "Niagara", - .do_2 = xor_niagara_2, - .do_3 = xor_niagara_3, - .do_4 = xor_niagara_4, - .do_5 = xor_niagara_5, -}; - -#undef XOR_TRY_TEMPLATES -#define XOR_TRY_TEMPLATES \ - do { \ - xor_speed(&xor_block_VIS); \ - xor_speed(&xor_block_niagara); \ - } while (0) - -/* For VIS for everything except Niagara. */ -#define XOR_SELECT_TEMPLATE(FASTEST) \ - ((tlb_type == hypervisor && \ - (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \ - sun4v_chip_type == SUN4V_CHIP_NIAGARA2)) ? \ - &xor_block_niagara : \ - &xor_block_VIS) +#include -- cgit v1.2.3 From d172ad18f9914f70c761a6cad470efc986d5e07e Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 17 Jul 2008 23:44:50 -0700 Subject: sparc64: Convert to generic helpers for IPI function calls. Signed-off-by: David S. Miller --- arch/sparc64/Kconfig | 1 + arch/sparc64/kernel/smp.c | 87 ++++++++----------------------------- arch/sparc64/kernel/sparc64_ksyms.c | 2 - arch/sparc64/kernel/ttable.S | 7 ++- arch/sparc64/mm/ultra.S | 5 +++ include/asm-sparc/pil.h | 1 + include/asm-sparc/smp_64.h | 3 ++ 7 files changed, 33 insertions(+), 73 deletions(-) (limited to 'include') diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 794d22fdf463..1aeb1da9829d 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -16,6 +16,7 @@ config SPARC64 select HAVE_IDE select HAVE_LMB select HAVE_ARCH_KGDB + select USE_GENERIC_SMP_HELPERS if SMP config GENERIC_TIME bool diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index c099d96f1239..7cf72b4bb108 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -788,89 +788,36 @@ static void smp_start_sync_tick_client(int cpu) 0, 0, 0, mask); } -/* Send cross call to all processors except self. */ -#define smp_cross_call(func, ctx, data1, data2) \ - smp_cross_call_masked(func, ctx, data1, data2, cpu_online_map) - -struct call_data_struct { - void (*func) (void *info); - void *info; - atomic_t finished; - int wait; -}; - -static struct call_data_struct *call_data; - extern unsigned long xcall_call_function; -/** - * smp_call_function(): Run a function on all other CPUs. - * @func: The function to run. This must be fast and non-blocking. - * @info: An arbitrary pointer to pass to the function. - * @wait: If true, wait (atomically) until function has completed on other CPUs. - * - * Returns 0 on success, else a negative status code. Does not return until - * remote CPUs are nearly ready to execute <> or are or have executed. - * - * You must not call this function with disabled interrupts or from a - * hardware interrupt handler or from a bottom half handler. - */ -static int sparc64_smp_call_function_mask(void (*func)(void *info), void *info, - int wait, cpumask_t mask) +void arch_send_call_function_ipi(cpumask_t mask) { - struct call_data_struct data; - int cpus; - - /* Can deadlock when called with interrupts disabled */ - WARN_ON(irqs_disabled()); - - data.func = func; - data.info = info; - atomic_set(&data.finished, 0); - data.wait = wait; - - spin_lock(&call_lock); - - cpu_clear(smp_processor_id(), mask); - cpus = cpus_weight(mask); - if (!cpus) - goto out_unlock; - - call_data = &data; - mb(); - smp_cross_call_masked(&xcall_call_function, 0, 0, 0, mask); +} - /* Wait for response */ - while (atomic_read(&data.finished) != cpus) - cpu_relax(); +extern unsigned long xcall_call_function_single; -out_unlock: - spin_unlock(&call_lock); +void arch_send_call_function_single_ipi(int cpu) +{ + cpumask_t mask = cpumask_of_cpu(cpu); - return 0; + smp_cross_call_masked(&xcall_call_function_single, 0, 0, 0, mask); } -int smp_call_function(void (*func)(void *info), void *info, int wait) -{ - return sparc64_smp_call_function_mask(func, info, wait, cpu_online_map); -} +/* Send cross call to all processors except self. */ +#define smp_cross_call(func, ctx, data1, data2) \ + smp_cross_call_masked(func, ctx, data1, data2, cpu_online_map) void smp_call_function_client(int irq, struct pt_regs *regs) { - void (*func) (void *info) = call_data->func; - void *info = call_data->info; + clear_softint(1 << irq); + generic_smp_call_function_interrupt(); +} +void smp_call_function_single_client(int irq, struct pt_regs *regs) +{ clear_softint(1 << irq); - if (call_data->wait) { - /* let initiator proceed only after completion */ - func(info); - atomic_inc(&call_data->finished); - } else { - /* let initiator proceed after getting data */ - atomic_inc(&call_data->finished); - func(info); - } + generic_smp_call_function_single_interrupt(); } static void tsb_sync(void *info) @@ -890,7 +837,7 @@ static void tsb_sync(void *info) void smp_tsb_sync(struct mm_struct *mm) { - sparc64_smp_call_function_mask(tsb_sync, mm, 1, mm->cpu_vm_mask); + smp_call_function_mask(mm->cpu_vm_mask, tsb_sync, mm, 1); } extern unsigned long xcall_flush_tlb_mm; diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c index 49d3ea50c247..504e678ee128 100644 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ b/arch/sparc64/kernel/sparc64_ksyms.c @@ -108,8 +108,6 @@ EXPORT_SYMBOL(__read_unlock); EXPORT_SYMBOL(__write_lock); EXPORT_SYMBOL(__write_unlock); EXPORT_SYMBOL(__write_trylock); - -EXPORT_SYMBOL(smp_call_function); #endif /* CONFIG_SMP */ #ifdef CONFIG_MCOUNT diff --git a/arch/sparc64/kernel/ttable.S b/arch/sparc64/kernel/ttable.S index 450053af039e..1ade3d6fb7fc 100644 --- a/arch/sparc64/kernel/ttable.S +++ b/arch/sparc64/kernel/ttable.S @@ -58,7 +58,12 @@ tl0_irq3: BTRAP(0x43) tl0_irq4: BTRAP(0x44) #endif tl0_irq5: TRAP_IRQ(handler_irq, 5) -tl0_irq6: BTRAP(0x46) BTRAP(0x47) BTRAP(0x48) BTRAP(0x49) +#ifdef CONFIG_SMP +tl0_irq6: TRAP_IRQ(smp_call_function_single_client, 6) +#else +tl0_irq6: BTRAP(0x46) +#endif +tl0_irq7: BTRAP(0x47) BTRAP(0x48) BTRAP(0x49) tl0_irq10: BTRAP(0x4a) BTRAP(0x4b) BTRAP(0x4c) BTRAP(0x4d) tl0_irq14: TRAP_IRQ(timer_interrupt, 14) tl0_irq15: TRAP_IRQ(handler_irq, 15) diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S index 9bb2d90a9df6..4c8ca131ffaf 100644 --- a/arch/sparc64/mm/ultra.S +++ b/arch/sparc64/mm/ultra.S @@ -688,6 +688,11 @@ xcall_call_function: wr %g0, (1 << PIL_SMP_CALL_FUNC), %set_softint retry + .globl xcall_call_function_single +xcall_call_function_single: + wr %g0, (1 << PIL_SMP_CALL_FUNC_SNGL), %set_softint + retry + .globl xcall_receive_signal xcall_receive_signal: wr %g0, (1 << PIL_SMP_RECEIVE_SIGNAL), %set_softint diff --git a/include/asm-sparc/pil.h b/include/asm-sparc/pil.h index eaac842d88c3..71819bb943fc 100644 --- a/include/asm-sparc/pil.h +++ b/include/asm-sparc/pil.h @@ -17,5 +17,6 @@ #define PIL_SMP_CAPTURE 3 #define PIL_SMP_CTX_NEW_VERSION 4 #define PIL_DEVICE_IRQ 5 +#define PIL_SMP_CALL_FUNC_SNGL 6 #endif /* !(_SPARC64_PIL_H) */ diff --git a/include/asm-sparc/smp_64.h b/include/asm-sparc/smp_64.h index 4cfe09c51f1f..57224dd37b3a 100644 --- a/include/asm-sparc/smp_64.h +++ b/include/asm-sparc/smp_64.h @@ -34,6 +34,9 @@ DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); extern cpumask_t cpu_core_map[NR_CPUS]; extern int sparc64_multi_core; +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi(cpumask_t mask); + /* * General functions that each host system must provide. */ -- cgit v1.2.3 From f7fe93344fd3f4ccd406a35f751a61b77f94b0fc Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 17 Jul 2008 23:43:55 -0700 Subject: sparc64: Remove 4MB and 512K base page size options. Adrian Bunk reported that enabling 4MB page size breaks the build. The problem is that MAX_ORDER combined with the page shift exceeds the SECTION_SIZE_BITS we use in asm-sparc64/sparsemem.h There are several ways I suppose we could work around this. For one we could define a CONFIG_FORCE_MAX_ZONEORDER to decrease MAX_ORDER in these higher page size cases. But I also know that these page size cases are broken wrt. TLB miss handling especially on pre-hypervisor systems, and there isn't an easy way to fix that. These options were meant to be fun experimental hacks anyways, and only 8K and 64K make any sense to support. So remove 512K and 4M base page size support. Of course, we still support these page sizes for huge pages. Signed-off-by: David S. Miller --- arch/sparc64/Kconfig | 11 +---------- arch/sparc64/lib/copy_page.S | 6 +++--- arch/sparc64/mm/tsb.c | 6 ------ include/asm-sparc/mmu_64.h | 4 ---- include/asm-sparc/page_64.h | 4 ---- include/asm-sparc/pgtable_64.h | 6 ------ 6 files changed, 4 insertions(+), 33 deletions(-) (limited to 'include') diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 1aeb1da9829d..7c88263256af 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -98,19 +98,11 @@ config SPARC64_PAGE_SIZE_8KB 8KB and 64KB work quite well, since SPARC ELF sections provide for up to 64KB alignment. - Therefore, 512KB and 4MB are for expert hackers only. - If you don't know what to do, choose 8KB. config SPARC64_PAGE_SIZE_64KB bool "64KB" -config SPARC64_PAGE_SIZE_512KB - bool "512KB" - -config SPARC64_PAGE_SIZE_4MB - bool "4MB" - endchoice config SECCOMP @@ -226,11 +218,10 @@ config HUGETLB_PAGE_SIZE_4MB bool "4MB" config HUGETLB_PAGE_SIZE_512K - depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB bool "512K" config HUGETLB_PAGE_SIZE_64K - depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB + depends on !SPARC64_PAGE_SIZE_64KB bool "64K" endchoice diff --git a/arch/sparc64/lib/copy_page.S b/arch/sparc64/lib/copy_page.S index 37460666a5c3..b243d3b606ba 100644 --- a/arch/sparc64/lib/copy_page.S +++ b/arch/sparc64/lib/copy_page.S @@ -25,9 +25,9 @@ #define DCACHE_SIZE (PAGE_SIZE * 2) -#if (PAGE_SHIFT == 13) || (PAGE_SHIFT == 19) +#if (PAGE_SHIFT == 13) #define PAGE_SIZE_REM 0x80 -#elif (PAGE_SHIFT == 16) || (PAGE_SHIFT == 22) +#elif (PAGE_SHIFT == 16) #define PAGE_SIZE_REM 0x100 #else #error Wrong PAGE_SHIFT specified @@ -198,7 +198,7 @@ cheetah_copy_page_insn: cmp %o2, PAGE_SIZE_REM bne,pt %xcc, 1b add %o0, 0x40, %o0 -#if (PAGE_SHIFT == 16) || (PAGE_SHIFT == 22) +#if (PAGE_SHIFT == 16) TOUCH(f0, f2, f4, f6, f8, f10, f12, f14) ldda [%o1] ASI_BLK_P, %f32 stda %f48, [%o0] %asi diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c index fe70c8a557b5..3547937b17a2 100644 --- a/arch/sparc64/mm/tsb.c +++ b/arch/sparc64/mm/tsb.c @@ -96,12 +96,6 @@ void flush_tsb_user(struct mmu_gather *mp) #elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) #define HV_PGSZ_IDX_BASE HV_PGSZ_IDX_64K #define HV_PGSZ_MASK_BASE HV_PGSZ_MASK_64K -#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) -#define HV_PGSZ_IDX_BASE HV_PGSZ_IDX_512K -#define HV_PGSZ_MASK_BASE HV_PGSZ_MASK_512K -#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) -#define HV_PGSZ_IDX_BASE HV_PGSZ_IDX_4MB -#define HV_PGSZ_MASK_BASE HV_PGSZ_MASK_4MB #else #error Broken base page size setting... #endif diff --git a/include/asm-sparc/mmu_64.h b/include/asm-sparc/mmu_64.h index 8abc58f0f9d7..9067dc500535 100644 --- a/include/asm-sparc/mmu_64.h +++ b/include/asm-sparc/mmu_64.h @@ -34,10 +34,6 @@ #define CTX_PGSZ_BASE CTX_PGSZ_8KB #elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) #define CTX_PGSZ_BASE CTX_PGSZ_64KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) -#define CTX_PGSZ_BASE CTX_PGSZ_512KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) -#define CTX_PGSZ_BASE CTX_PGSZ_4MB #else #error No page size specified in kernel configuration #endif diff --git a/include/asm-sparc/page_64.h b/include/asm-sparc/page_64.h index 93f0881b766e..a8a2bba032c1 100644 --- a/include/asm-sparc/page_64.h +++ b/include/asm-sparc/page_64.h @@ -7,10 +7,6 @@ #define PAGE_SHIFT 13 #elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) #define PAGE_SHIFT 16 -#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) -#define PAGE_SHIFT 19 -#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) -#define PAGE_SHIFT 22 #else #error No page size specified in kernel configuration #endif diff --git a/include/asm-sparc/pgtable_64.h b/include/asm-sparc/pgtable_64.h index 78d5594964a3..bb9ec2cce355 100644 --- a/include/asm-sparc/pgtable_64.h +++ b/include/asm-sparc/pgtable_64.h @@ -161,12 +161,6 @@ #elif PAGE_SHIFT == 16 #define _PAGE_SZBITS_4U _PAGE_SZ64K_4U #define _PAGE_SZBITS_4V _PAGE_SZ64K_4V -#elif PAGE_SHIFT == 19 -#define _PAGE_SZBITS_4U _PAGE_SZ512K_4U -#define _PAGE_SZBITS_4V _PAGE_SZ512K_4V -#elif PAGE_SHIFT == 22 -#define _PAGE_SZBITS_4U _PAGE_SZ4MB_4U -#define _PAGE_SZBITS_4V _PAGE_SZ4MB_4V #else #error Wrong PAGE_SHIFT specified #endif -- cgit v1.2.3 From 432e8765f0206de5bbddcbd4eb1d9611c79b1eaa Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 18 Jul 2008 00:43:52 -0700 Subject: sparc64: Add missing hypervisor service group numbers. Signed-off-by: David S. Miller --- arch/sparc64/kernel/hvapi.c | 4 ++++ include/asm-sparc/hypervisor.h | 4 ++++ 2 files changed, 8 insertions(+) (limited to 'include') diff --git a/arch/sparc64/kernel/hvapi.c b/arch/sparc64/kernel/hvapi.c index f34f5d6181ef..691760b5b012 100644 --- a/arch/sparc64/kernel/hvapi.c +++ b/arch/sparc64/kernel/hvapi.c @@ -34,8 +34,12 @@ static struct api_info api_table[] = { { .group = HV_GRP_LDOM, }, { .group = HV_GRP_SVC_CHAN, .flags = FLAG_PRE_API }, { .group = HV_GRP_NCS, .flags = FLAG_PRE_API }, + { .group = HV_GRP_RNG, }, { .group = HV_GRP_NIAG_PERF, .flags = FLAG_PRE_API }, { .group = HV_GRP_FIRE_PERF, }, + { .group = HV_GRP_N2_CPU, }, + { .group = HV_GRP_NIU, }, + { .group = HV_GRP_VF_CPU, }, { .group = HV_GRP_DIAG, .flags = FLAG_PRE_API }, }; diff --git a/include/asm-sparc/hypervisor.h b/include/asm-sparc/hypervisor.h index 0c0f41cf7462..109ae24ba242 100644 --- a/include/asm-sparc/hypervisor.h +++ b/include/asm-sparc/hypervisor.h @@ -2920,8 +2920,12 @@ extern unsigned long sun4v_ncs_request(unsigned long request, #define HV_GRP_LDOM 0x0101 #define HV_GRP_SVC_CHAN 0x0102 #define HV_GRP_NCS 0x0103 +#define HV_GRP_RNG 0x0104 #define HV_GRP_NIAG_PERF 0x0200 #define HV_GRP_FIRE_PERF 0x0201 +#define HV_GRP_N2_CPU 0x0202 +#define HV_GRP_NIU 0x0204 +#define HV_GRP_VF_CPU 0x0205 #define HV_GRP_DIAG 0x0300 #ifndef __ASSEMBLY__ -- cgit v1.2.3 From 593f4a788e5d09e9f00182561437461b0b564de4 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Wed, 16 Jul 2008 19:15:30 +0100 Subject: x86: APIC: remove apic_write_around(); use alternatives Use alternatives to select the workaround for the 11AP Pentium erratum for the affected steppings on the fly rather than build time. Remove the X86_GOOD_APIC configuration option and replace all the calls to apic_write_around() with plain apic_write(), protecting accesses to the ESR as appropriate due to the 3AP Pentium erratum. Remove apic_read_around() and all its invocations altogether as not needed. Remove apic_write_atomic() and all its implementing backends. The use of ASM_OUTPUT2() is not strictly needed for input constraints, but I have used it for readability's sake. I had the feeling no one else was brave enough to do it, so I went ahead and here it is. Verified by checking the generated assembly and tested with both a 32-bit and a 64-bit configuration, also with the 11AP "feature" forced on and verified with gdb on /proc/kcore to work as expected (as an 11AP machines are quite hard to get hands on these days). Some script complained about the use of "volatile", but apic_write() needs it for the same reason and is effectively a replacement for writel(), so I have disregarded it. I am not sure what the policy wrt defconfig files is, they are generated and there is risk of a conflict resulting from an unrelated change, so I have left changes to them out. The option will get removed from them at the next run. Some testing with machines other than mine will be needed to avoid some stupid mistake, but despite its volume, the change is not really that intrusive, so I am fairly confident that because it works for me, it will everywhere. Signed-off-by: Maciej W. Rozycki Signed-off-by: Ingo Molnar --- arch/x86/Kconfig.cpu | 4 -- arch/x86/kernel/apic_32.c | 75 +++++++++++++++----------------- arch/x86/kernel/cpu/bugs.c | 23 +--------- arch/x86/kernel/cpu/intel.c | 10 +++++ arch/x86/kernel/cpu/mcheck/p4.c | 4 +- arch/x86/kernel/io_apic_32.c | 14 +++--- arch/x86/kernel/ipi.c | 6 +-- arch/x86/kernel/nmi.c | 4 +- arch/x86/kernel/paravirt.c | 1 - arch/x86/kernel/smpboot.c | 49 ++++++++------------- arch/x86/kernel/vmi_32.c | 1 - arch/x86/lguest/boot.c | 1 - arch/x86/xen/enlighten.c | 1 - include/asm-x86/apic.h | 24 +++------- include/asm-x86/cpufeature.h | 1 + include/asm-x86/mach-bigsmp/mach_apic.h | 4 +- include/asm-x86/mach-default/mach_apic.h | 4 +- include/asm-x86/mach-es7000/mach_apic.h | 4 +- include/asm-x86/mach-summit/mach_apic.h | 4 +- include/asm-x86/paravirt.h | 6 --- 20 files changed, 96 insertions(+), 144 deletions(-) (limited to 'include') diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index abff1b84ed5b..54b8c02c71e6 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -362,10 +362,6 @@ config X86_ALIGNMENT_16 def_bool y depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 -config X86_GOOD_APIC - def_bool y - depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7 || X86_64 - config X86_INTEL_USERCOPY def_bool y depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2 diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c index a437d027f20b..2bc1186cc95a 100644 --- a/arch/x86/kernel/apic_32.c +++ b/arch/x86/kernel/apic_32.c @@ -177,7 +177,7 @@ void __cpuinit enable_NMI_through_LVT0(void) /* Level triggered for 82489DX */ if (!lapic_is_integrated()) v |= APIC_LVT_LEVEL_TRIGGER; - apic_write_around(APIC_LVT0, v); + apic_write(APIC_LVT0, v); } /** @@ -212,9 +212,6 @@ int lapic_get_maxlvt(void) * this function twice on the boot CPU, once with a bogus timeout * value, second time for real. The other (noncalibrating) CPUs * call this function only once, with the real, calibrated value. - * - * We do reads before writes even if unnecessary, to get around the - * P5 APIC double write bug. */ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen) { @@ -229,18 +226,18 @@ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen) if (!irqen) lvtt_value |= APIC_LVT_MASKED; - apic_write_around(APIC_LVTT, lvtt_value); + apic_write(APIC_LVTT, lvtt_value); /* * Divide PICLK by 16 */ tmp_value = apic_read(APIC_TDCR); - apic_write_around(APIC_TDCR, (tmp_value - & ~(APIC_TDR_DIV_1 | APIC_TDR_DIV_TMBASE)) - | APIC_TDR_DIV_16); + apic_write(APIC_TDCR, + (tmp_value & ~(APIC_TDR_DIV_1 | APIC_TDR_DIV_TMBASE)) | + APIC_TDR_DIV_16); if (!oneshot) - apic_write_around(APIC_TMICT, clocks/APIC_DIVISOR); + apic_write(APIC_TMICT, clocks / APIC_DIVISOR); } /* @@ -249,7 +246,7 @@ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen) static int lapic_next_event(unsigned long delta, struct clock_event_device *evt) { - apic_write_around(APIC_TMICT, delta); + apic_write(APIC_TMICT, delta); return 0; } @@ -278,7 +275,7 @@ static void lapic_timer_setup(enum clock_event_mode mode, case CLOCK_EVT_MODE_SHUTDOWN: v = apic_read(APIC_LVTT); v |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR); - apic_write_around(APIC_LVTT, v); + apic_write(APIC_LVTT, v); break; case CLOCK_EVT_MODE_RESUME: /* Nothing to do here */ @@ -693,44 +690,44 @@ void clear_local_APIC(void) */ if (maxlvt >= 3) { v = ERROR_APIC_VECTOR; /* any non-zero vector will do */ - apic_write_around(APIC_LVTERR, v | APIC_LVT_MASKED); + apic_write(APIC_LVTERR, v | APIC_LVT_MASKED); } /* * Careful: we have to set masks only first to deassert * any level-triggered sources. */ v = apic_read(APIC_LVTT); - apic_write_around(APIC_LVTT, v | APIC_LVT_MASKED); + apic_write(APIC_LVTT, v | APIC_LVT_MASKED); v = apic_read(APIC_LVT0); - apic_write_around(APIC_LVT0, v | APIC_LVT_MASKED); + apic_write(APIC_LVT0, v | APIC_LVT_MASKED); v = apic_read(APIC_LVT1); - apic_write_around(APIC_LVT1, v | APIC_LVT_MASKED); + apic_write(APIC_LVT1, v | APIC_LVT_MASKED); if (maxlvt >= 4) { v = apic_read(APIC_LVTPC); - apic_write_around(APIC_LVTPC, v | APIC_LVT_MASKED); + apic_write(APIC_LVTPC, v | APIC_LVT_MASKED); } /* lets not touch this if we didn't frob it */ #ifdef CONFIG_X86_MCE_P4THERMAL if (maxlvt >= 5) { v = apic_read(APIC_LVTTHMR); - apic_write_around(APIC_LVTTHMR, v | APIC_LVT_MASKED); + apic_write(APIC_LVTTHMR, v | APIC_LVT_MASKED); } #endif /* * Clean APIC state for other OSs: */ - apic_write_around(APIC_LVTT, APIC_LVT_MASKED); - apic_write_around(APIC_LVT0, APIC_LVT_MASKED); - apic_write_around(APIC_LVT1, APIC_LVT_MASKED); + apic_write(APIC_LVTT, APIC_LVT_MASKED); + apic_write(APIC_LVT0, APIC_LVT_MASKED); + apic_write(APIC_LVT1, APIC_LVT_MASKED); if (maxlvt >= 3) - apic_write_around(APIC_LVTERR, APIC_LVT_MASKED); + apic_write(APIC_LVTERR, APIC_LVT_MASKED); if (maxlvt >= 4) - apic_write_around(APIC_LVTPC, APIC_LVT_MASKED); + apic_write(APIC_LVTPC, APIC_LVT_MASKED); #ifdef CONFIG_X86_MCE_P4THERMAL if (maxlvt >= 5) - apic_write_around(APIC_LVTTHMR, APIC_LVT_MASKED); + apic_write(APIC_LVTTHMR, APIC_LVT_MASKED); #endif /* Integrated APIC (!82489DX) ? */ if (lapic_is_integrated()) { @@ -756,7 +753,7 @@ void disable_local_APIC(void) */ value = apic_read(APIC_SPIV); value &= ~APIC_SPIV_APIC_ENABLED; - apic_write_around(APIC_SPIV, value); + apic_write(APIC_SPIV, value); /* * When LAPIC was disabled by the BIOS and enabled by the kernel, @@ -865,8 +862,8 @@ void __init sync_Arb_IDs(void) apic_wait_icr_idle(); apic_printk(APIC_DEBUG, "Synchronizing Arb IDs.\n"); - apic_write_around(APIC_ICR, APIC_DEST_ALLINC | APIC_INT_LEVELTRIG - | APIC_DM_INIT); + apic_write(APIC_ICR, + APIC_DEST_ALLINC | APIC_INT_LEVELTRIG | APIC_DM_INIT); } /* @@ -902,16 +899,16 @@ void __init init_bsp_APIC(void) else value |= APIC_SPIV_FOCUS_DISABLED; value |= SPURIOUS_APIC_VECTOR; - apic_write_around(APIC_SPIV, value); + apic_write(APIC_SPIV, value); /* * Set up the virtual wire mode. */ - apic_write_around(APIC_LVT0, APIC_DM_EXTINT); + apic_write(APIC_LVT0, APIC_DM_EXTINT); value = APIC_DM_NMI; if (!lapic_is_integrated()) /* 82489DX */ value |= APIC_LVT_LEVEL_TRIGGER; - apic_write_around(APIC_LVT1, value); + apic_write(APIC_LVT1, value); } static void __cpuinit lapic_setup_esr(void) @@ -926,7 +923,7 @@ static void __cpuinit lapic_setup_esr(void) /* enables sending errors */ value = ERROR_APIC_VECTOR; - apic_write_around(APIC_LVTERR, value); + apic_write(APIC_LVTERR, value); /* * spec says clear errors after enabling vector. */ @@ -989,7 +986,7 @@ void __cpuinit setup_local_APIC(void) */ value = apic_read(APIC_TASKPRI); value &= ~APIC_TPRI_MASK; - apic_write_around(APIC_TASKPRI, value); + apic_write(APIC_TASKPRI, value); /* * After a crash, we no longer service the interrupts and a pending @@ -1047,7 +1044,7 @@ void __cpuinit setup_local_APIC(void) * Set spurious IRQ vector */ value |= SPURIOUS_APIC_VECTOR; - apic_write_around(APIC_SPIV, value); + apic_write(APIC_SPIV, value); /* * Set up LVT0, LVT1: @@ -1069,7 +1066,7 @@ void __cpuinit setup_local_APIC(void) apic_printk(APIC_VERBOSE, "masked ExtINT on CPU#%d\n", smp_processor_id()); } - apic_write_around(APIC_LVT0, value); + apic_write(APIC_LVT0, value); /* * only the BP should see the LINT1 NMI signal, obviously. @@ -1080,7 +1077,7 @@ void __cpuinit setup_local_APIC(void) value = APIC_DM_NMI | APIC_LVT_MASKED; if (!integrated) /* 82489DX */ value |= APIC_LVT_LEVEL_TRIGGER; - apic_write_around(APIC_LVT1, value); + apic_write(APIC_LVT1, value); } void __cpuinit end_local_APIC_setup(void) @@ -1091,7 +1088,7 @@ void __cpuinit end_local_APIC_setup(void) /* Disable the local apic timer */ value = apic_read(APIC_LVTT); value |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR); - apic_write_around(APIC_LVTT, value); + apic_write(APIC_LVTT, value); setup_apic_nmi_watchdog(NULL); apic_pm_activate(); @@ -1419,7 +1416,7 @@ void disconnect_bsp_APIC(int virt_wire_setup) value &= ~APIC_VECTOR_MASK; value |= APIC_SPIV_APIC_ENABLED; value |= 0xf; - apic_write_around(APIC_SPIV, value); + apic_write(APIC_SPIV, value); if (!virt_wire_setup) { /* @@ -1432,10 +1429,10 @@ void disconnect_bsp_APIC(int virt_wire_setup) APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED); value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING; value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_EXTINT); - apic_write_around(APIC_LVT0, value); + apic_write(APIC_LVT0, value); } else { /* Disable LVT0 */ - apic_write_around(APIC_LVT0, APIC_LVT_MASKED); + apic_write(APIC_LVT0, APIC_LVT_MASKED); } /* @@ -1449,7 +1446,7 @@ void disconnect_bsp_APIC(int virt_wire_setup) APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED); value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING; value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_NMI); - apic_write_around(APIC_LVT1, value); + apic_write(APIC_LVT1, value); } } diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 1b1c56bb338f..c9b58a806e85 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -131,13 +131,7 @@ static void __init check_popad(void) * (for due to lack of "invlpg" and working WP on a i386) * - In order to run on anything without a TSC, we need to be * compiled for a i486. - * - In order to support the local APIC on a buggy Pentium machine, - * we need to be compiled with CONFIG_X86_GOOD_APIC disabled, - * which happens implicitly if compiled for a Pentium or lower - * (unless an advanced selection of CPU features is used) as an - * otherwise config implies a properly working local APIC without - * the need to do extra reads from the APIC. -*/ + */ static void __init check_config(void) { @@ -151,21 +145,6 @@ static void __init check_config(void) if (boot_cpu_data.x86 == 3) panic("Kernel requires i486+ for 'invlpg' and other features"); #endif - -/* - * If we were told we had a good local APIC, check for buggy Pentia, - * i.e. all B steppings and the C2 stepping of P54C when using their - * integrated APIC (see 11AP erratum in "Pentium Processor - * Specification Update"). - */ -#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_GOOD_APIC) - if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL - && cpu_has_apic - && boot_cpu_data.x86 == 5 - && boot_cpu_data.x86_model == 2 - && (boot_cpu_data.x86_mask < 6 || boot_cpu_data.x86_mask == 11)) - panic("Kernel compiled for PMMX+, assumes a local APIC without the read-before-write bug!"); -#endif } diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 70609efdf1da..b75f2569b8f8 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -227,6 +227,16 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c) if (cpu_has_bts) ds_init_intel(c); + /* + * See if we have a good local APIC by checking for buggy Pentia, + * i.e. all B steppings and the C2 stepping of P54C when using their + * integrated APIC (see 11AP erratum in "Pentium Processor + * Specification Update"). + */ + if (cpu_has_apic && (c->x86<<8 | c->x86_model<<4) == 0x520 && + (c->x86_mask < 0x6 || c->x86_mask == 0xb)) + set_cpu_cap(c, X86_FEATURE_11AP); + #ifdef CONFIG_X86_NUMAQ numaq_tsc_disable(); #endif diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c index eef001ad3bde..9b60fce09f75 100644 --- a/arch/x86/kernel/cpu/mcheck/p4.c +++ b/arch/x86/kernel/cpu/mcheck/p4.c @@ -102,7 +102,7 @@ static void intel_init_thermal(struct cpuinfo_x86 *c) /* The temperature transition interrupt handler setup */ h = THERMAL_APIC_VECTOR; /* our delivery vector */ h |= (APIC_DM_FIXED | APIC_LVT_MASKED); /* we'll mask till we're ready */ - apic_write_around(APIC_LVTTHMR, h); + apic_write(APIC_LVTTHMR, h); rdmsr(MSR_IA32_THERM_INTERRUPT, l, h); wrmsr(MSR_IA32_THERM_INTERRUPT, l | 0x03 , h); @@ -114,7 +114,7 @@ static void intel_init_thermal(struct cpuinfo_x86 *c) wrmsr(MSR_IA32_MISC_ENABLE, l | (1<<3), h); l = apic_read(APIC_LVTTHMR); - apic_write_around(APIC_LVTTHMR, l & ~APIC_LVT_MASKED); + apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED); printk(KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu); /* enable thermal throttle processing */ diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index 558abf4c796a..eabaf9244f5b 100644 --- a/arch/x86/kernel/io_apic_32.c +++ b/arch/x86/kernel/io_apic_32.c @@ -756,7 +756,7 @@ void send_IPI_self(int vector) /* * Send the IPI. The write to APIC_ICR fires this off. */ - apic_write_around(APIC_ICR, cfg); + apic_write(APIC_ICR, cfg); } #endif /* !CONFIG_SMP */ @@ -2030,7 +2030,7 @@ static void mask_lapic_irq(unsigned int irq) unsigned long v; v = apic_read(APIC_LVT0); - apic_write_around(APIC_LVT0, v | APIC_LVT_MASKED); + apic_write(APIC_LVT0, v | APIC_LVT_MASKED); } static void unmask_lapic_irq(unsigned int irq) @@ -2038,7 +2038,7 @@ static void unmask_lapic_irq(unsigned int irq) unsigned long v; v = apic_read(APIC_LVT0); - apic_write_around(APIC_LVT0, v & ~APIC_LVT_MASKED); + apic_write(APIC_LVT0, v & ~APIC_LVT_MASKED); } static struct irq_chip lapic_chip __read_mostly = { @@ -2168,7 +2168,7 @@ static inline void __init check_timer(void) * The AEOI mode will finish them in the 8259A * automatically. */ - apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT); + apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT); init_8259A(1); timer_ack = (nmi_watchdog == NMI_IO_APIC && !APIC_INTEGRATED(ver)); @@ -2256,7 +2256,7 @@ static inline void __init check_timer(void) printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ..."); lapic_register_intr(0, vector); - apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */ + apic_write(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */ enable_8259A_irq(0); if (timer_irq_works()) { @@ -2264,14 +2264,14 @@ static inline void __init check_timer(void) goto out; } disable_8259A_irq(0); - apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector); + apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector); printk(" failed.\n"); printk(KERN_INFO "...trying to set up timer as ExtINT IRQ..."); init_8259A(0); make_8259A_irq(0); - apic_write_around(APIC_LVT0, APIC_DM_EXTINT); + apic_write(APIC_LVT0, APIC_DM_EXTINT); unlock_ExtINT_logic(); diff --git a/arch/x86/kernel/ipi.c b/arch/x86/kernel/ipi.c index 9d98cda39ad9..3f7537b669d3 100644 --- a/arch/x86/kernel/ipi.c +++ b/arch/x86/kernel/ipi.c @@ -70,7 +70,7 @@ void __send_IPI_shortcut(unsigned int shortcut, int vector) /* * Send the IPI. The write to APIC_ICR fires this off. */ - apic_write_around(APIC_ICR, cfg); + apic_write(APIC_ICR, cfg); } void send_IPI_self(int vector) @@ -98,7 +98,7 @@ static inline void __send_IPI_dest_field(unsigned long mask, int vector) * prepare target chip field */ cfg = __prepare_ICR2(mask); - apic_write_around(APIC_ICR2, cfg); + apic_write(APIC_ICR2, cfg); /* * program the ICR @@ -108,7 +108,7 @@ static inline void __send_IPI_dest_field(unsigned long mask, int vector) /* * Send the IPI. The write to APIC_ICR fires this off. */ - apic_write_around(APIC_ICR, cfg); + apic_write(APIC_ICR, cfg); } /* diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index ec024b3baad0..384b49fed598 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -263,7 +263,7 @@ late_initcall(init_lapic_nmi_sysfs); static void __acpi_nmi_enable(void *__unused) { - apic_write_around(APIC_LVT0, APIC_DM_NMI); + apic_write(APIC_LVT0, APIC_DM_NMI); } /* @@ -277,7 +277,7 @@ void acpi_nmi_enable(void) static void __acpi_nmi_disable(void *__unused) { - apic_write_around(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED); + apic_write(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED); } /* diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index e0f571d58c19..5d7326a60b7c 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -361,7 +361,6 @@ struct pv_cpu_ops pv_cpu_ops = { struct pv_apic_ops pv_apic_ops = { #ifdef CONFIG_X86_LOCAL_APIC .apic_write = native_apic_write, - .apic_write_atomic = native_apic_write_atomic, .apic_read = native_apic_read, .setup_boot_clock = setup_boot_APIC_clock, .setup_secondary_clock = setup_secondary_APIC_clock, diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 687376ab07e8..f251f5c38823 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -546,8 +546,8 @@ static inline void __inquire_remote_apic(int apicid) printk(KERN_CONT "a previous APIC delivery may have failed\n"); - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(apicid)); - apic_write_around(APIC_ICR, APIC_DM_REMRD | regs[i]); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid)); + apic_write(APIC_ICR, APIC_DM_REMRD | regs[i]); timeout = 0; do { @@ -579,11 +579,11 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) int maxlvt; /* Target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(logical_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(logical_apicid)); /* Boot on the stack */ /* Kick the second */ - apic_write_around(APIC_ICR, APIC_DM_NMI | APIC_DEST_LOGICAL); + apic_write(APIC_ICR, APIC_DM_NMI | APIC_DEST_LOGICAL); Dprintk("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); @@ -592,14 +592,9 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) * Give the other CPU some time to accept the IPI. */ udelay(200); - /* - * Due to the Pentium erratum 3AP. - */ maxlvt = lapic_get_maxlvt(); - if (maxlvt > 3) { - apic_read_around(APIC_SPIV); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ apic_write(APIC_ESR, 0); - } accept_status = (apic_read(APIC_ESR) & 0xEF); Dprintk("NMI sent.\n"); @@ -625,12 +620,14 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) return send_status; } + maxlvt = lapic_get_maxlvt(); + /* * Be paranoid about clearing APIC errors. */ if (APIC_INTEGRATED(apic_version[phys_apicid])) { - apic_read_around(APIC_SPIV); - apic_write(APIC_ESR, 0); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ + apic_write(APIC_ESR, 0); apic_read(APIC_ESR); } @@ -639,13 +636,13 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) /* * Turn INIT on target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); /* * Send IPI */ - apic_write_around(APIC_ICR, APIC_INT_LEVELTRIG | APIC_INT_ASSERT - | APIC_DM_INIT); + apic_write(APIC_ICR, + APIC_INT_LEVELTRIG | APIC_INT_ASSERT | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); @@ -655,10 +652,10 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) Dprintk("Deasserting INIT.\n"); /* Target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); /* Send IPI */ - apic_write_around(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); + apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); @@ -689,12 +686,10 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) */ Dprintk("#startup loops: %d.\n", num_starts); - maxlvt = lapic_get_maxlvt(); - for (j = 1; j <= num_starts; j++) { Dprintk("Sending STARTUP #%d.\n", j); - apic_read_around(APIC_SPIV); - apic_write(APIC_ESR, 0); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ + apic_write(APIC_ESR, 0); apic_read(APIC_ESR); Dprintk("After apic_write.\n"); @@ -703,12 +698,11 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) */ /* Target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); /* Boot on the stack */ /* Kick the second */ - apic_write_around(APIC_ICR, APIC_DM_STARTUP - | (start_eip >> 12)); + apic_write(APIC_ICR, APIC_DM_STARTUP | (start_eip >> 12)); /* * Give the other CPU some time to accept the IPI. @@ -724,13 +718,8 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) * Give the other CPU some time to accept the IPI. */ udelay(200); - /* - * Due to the Pentium erratum 3AP. - */ - if (maxlvt > 3) { - apic_read_around(APIC_SPIV); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ apic_write(APIC_ESR, 0); - } accept_status = (apic_read(APIC_ESR) & 0xEF); if (send_status || accept_status) break; diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c index b15346092b7b..0a1b1a9d922d 100644 --- a/arch/x86/kernel/vmi_32.c +++ b/arch/x86/kernel/vmi_32.c @@ -906,7 +906,6 @@ static inline int __init activate_vmi(void) #ifdef CONFIG_X86_LOCAL_APIC para_fill(pv_apic_ops.apic_read, APICRead); para_fill(pv_apic_ops.apic_write, APICWrite); - para_fill(pv_apic_ops.apic_write_atomic, APICWrite); #endif /* diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 50dad44fb542..0313a5eec412 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -991,7 +991,6 @@ __init void lguest_init(void) #ifdef CONFIG_X86_LOCAL_APIC /* apic read/write intercepts */ pv_apic_ops.apic_write = lguest_apic_write; - pv_apic_ops.apic_write_atomic = lguest_apic_write; pv_apic_ops.apic_read = lguest_apic_read; #endif diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index bb508456ef52..7f26c3718777 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1131,7 +1131,6 @@ static const struct pv_irq_ops xen_irq_ops __initdata = { static const struct pv_apic_ops xen_apic_ops __initdata = { #ifdef CONFIG_X86_LOCAL_APIC .apic_write = xen_apic_write, - .apic_write_atomic = xen_apic_write, .apic_read = xen_apic_read, .setup_boot_clock = paravirt_nop, .setup_secondary_clock = paravirt_nop, diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index 4e2c1e517f06..ea866baccefc 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -3,6 +3,8 @@ #include #include + +#include #include #include #include @@ -48,7 +50,6 @@ extern int disable_apic; #include #else #define apic_write native_apic_write -#define apic_write_atomic native_apic_write_atomic #define apic_read native_apic_read #define setup_boot_clock setup_boot_APIC_clock #define setup_secondary_clock setup_secondary_APIC_clock @@ -58,12 +59,11 @@ extern int is_vsmp_box(void); static inline void native_apic_write(unsigned long reg, u32 v) { - *((volatile u32 *)(APIC_BASE + reg)) = v; -} + volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg); -static inline void native_apic_write_atomic(unsigned long reg, u32 v) -{ - (void)xchg((u32 *)(APIC_BASE + reg), v); + alternative_io("movl %0, %1", "xchgl %0, %1", X86_FEATURE_11AP, + ASM_OUTPUT2("=r" (v), "=m" (*addr)), + ASM_OUTPUT2("0" (v), "m" (*addr))); } static inline u32 native_apic_read(unsigned long reg) @@ -75,16 +75,6 @@ extern void apic_wait_icr_idle(void); extern u32 safe_apic_wait_icr_idle(void); extern int get_physical_broadcast(void); -#ifdef CONFIG_X86_GOOD_APIC -# define FORCE_READ_AROUND_WRITE 0 -# define apic_read_around(x) -# define apic_write_around(x, y) apic_write((x), (y)) -#else -# define FORCE_READ_AROUND_WRITE 1 -# define apic_read_around(x) apic_read(x) -# define apic_write_around(x, y) apic_write_atomic((x), (y)) -#endif - static inline void ack_APIC_irq(void) { /* @@ -95,7 +85,7 @@ static inline void ack_APIC_irq(void) */ /* Docs say use 0 for future compatibility */ - apic_write_around(APIC_EOI, 0); + apic_write(APIC_EOI, 0); } extern int lapic_get_maxlvt(void); diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h index 75ef959db329..2f5a792b0acc 100644 --- a/include/asm-x86/cpufeature.h +++ b/include/asm-x86/cpufeature.h @@ -79,6 +79,7 @@ #define X86_FEATURE_REP_GOOD (3*32+16) /* rep microcode works well on this CPU */ #define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* Mfence synchronizes RDTSC */ #define X86_FEATURE_LFENCE_RDTSC (3*32+18) /* Lfence synchronizes RDTSC */ +#define X86_FEATURE_11AP (3*32+19) /* Bad local APIC aka 11AP */ /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ #define X86_FEATURE_XMM3 (4*32+ 0) /* Streaming SIMD Extensions-3 */ diff --git a/include/asm-x86/mach-bigsmp/mach_apic.h b/include/asm-x86/mach-bigsmp/mach_apic.h index 017c8c19ad8f..c3b9dc6970c9 100644 --- a/include/asm-x86/mach-bigsmp/mach_apic.h +++ b/include/asm-x86/mach-bigsmp/mach_apic.h @@ -63,9 +63,9 @@ static inline void init_apic_ldr(void) unsigned long val; int cpu = smp_processor_id(); - apic_write_around(APIC_DFR, APIC_DFR_VALUE); + apic_write(APIC_DFR, APIC_DFR_VALUE); val = calculate_ldr(cpu); - apic_write_around(APIC_LDR, val); + apic_write(APIC_LDR, val); } static inline void setup_apic_routing(void) diff --git a/include/asm-x86/mach-default/mach_apic.h b/include/asm-x86/mach-default/mach_apic.h index 0b2cde5e1b74..f3226b9a6b82 100644 --- a/include/asm-x86/mach-default/mach_apic.h +++ b/include/asm-x86/mach-default/mach_apic.h @@ -46,10 +46,10 @@ static inline void init_apic_ldr(void) { unsigned long val; - apic_write_around(APIC_DFR, APIC_DFR_VALUE); + apic_write(APIC_DFR, APIC_DFR_VALUE); val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id()); - apic_write_around(APIC_LDR, val); + apic_write(APIC_LDR, val); } static inline int apic_id_registered(void) diff --git a/include/asm-x86/mach-es7000/mach_apic.h b/include/asm-x86/mach-es7000/mach_apic.h index fbc8ad256f5a..0a3fdf930672 100644 --- a/include/asm-x86/mach-es7000/mach_apic.h +++ b/include/asm-x86/mach-es7000/mach_apic.h @@ -66,9 +66,9 @@ static inline void init_apic_ldr(void) unsigned long val; int cpu = smp_processor_id(); - apic_write_around(APIC_DFR, APIC_DFR_VALUE); + apic_write(APIC_DFR, APIC_DFR_VALUE); val = calculate_ldr(cpu); - apic_write_around(APIC_LDR, val); + apic_write(APIC_LDR, val); } #ifndef CONFIG_X86_GENERICARCH diff --git a/include/asm-x86/mach-summit/mach_apic.h b/include/asm-x86/mach-summit/mach_apic.h index 1f76c2e70232..75d2c95005d7 100644 --- a/include/asm-x86/mach-summit/mach_apic.h +++ b/include/asm-x86/mach-summit/mach_apic.h @@ -63,10 +63,10 @@ static inline void init_apic_ldr(void) * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */ BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT); id = my_cluster | (1UL << count); - apic_write_around(APIC_DFR, APIC_DFR_VALUE); + apic_write(APIC_DFR, APIC_DFR_VALUE); val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; val |= SET_APIC_LOGICAL_ID(id); - apic_write_around(APIC_LDR, val); + apic_write(APIC_LDR, val); } static inline int multi_timer_check(int apic, int irq) diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index ef5e8ec6a6ab..719d959d0bc4 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -205,7 +205,6 @@ struct pv_apic_ops { * these shouldn't be in this interface. */ void (*apic_write)(unsigned long reg, u32 v); - void (*apic_write_atomic)(unsigned long reg, u32 v); u32 (*apic_read)(unsigned long reg); void (*setup_boot_clock)(void); void (*setup_secondary_clock)(void); @@ -896,11 +895,6 @@ static inline void apic_write(unsigned long reg, u32 v) PVOP_VCALL2(pv_apic_ops.apic_write, reg, v); } -static inline void apic_write_atomic(unsigned long reg, u32 v) -{ - PVOP_VCALL2(pv_apic_ops.apic_write_atomic, reg, v); -} - static inline u32 apic_read(unsigned long reg) { return PVOP_CALL1(unsigned long, pv_apic_ops.apic_read, reg); -- cgit v1.2.3 From 2b7207a6b53bd07be53b4753a3ea5ecb8d180048 Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Wed, 16 Jul 2008 23:31:17 +0200 Subject: ftrace: copy + paste typo in asm/ftrace.h Signed-off-by: Sebastian Siewior Cc: Steven Rostedt Signed-off-by: Ingo Molnar --- include/asm-x86/ftrace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/ftrace.h b/include/asm-x86/ftrace.h index c184441133f2..5c68b32ee1c8 100644 --- a/include/asm-x86/ftrace.h +++ b/include/asm-x86/ftrace.h @@ -1,5 +1,5 @@ #ifndef _ASM_X86_FTRACE -#define _ASM_SPARC64_FTRACE +#define _ASM_X86_FTRACE #ifdef CONFIG_FTRACE #define MCOUNT_ADDR ((long)(mcount)) -- cgit v1.2.3 From e761b7725234276a802322549cee5255305a0930 Mon Sep 17 00:00:00 2001 From: Max Krasnyansky Date: Tue, 15 Jul 2008 04:43:49 -0700 Subject: cpu hotplug, sched: Introduce cpu_active_map and redo sched domain managment (take 2) This is based on Linus' idea of creating cpu_active_map that prevents scheduler load balancer from migrating tasks to the cpu that is going down. It allows us to simplify domain management code and avoid unecessary domain rebuilds during cpu hotplug event handling. Please ignore the cpusets part for now. It needs some more work in order to avoid crazy lock nesting. Although I did simplfy and unify domain reinitialization logic. We now simply call partition_sched_domains() in all the cases. This means that we're using exact same code paths as in cpusets case and hence the test below cover cpusets too. Cpuset changes to make rebuild_sched_domains() callable from various contexts are in the separate patch (right next after this one). This not only boots but also easily handles while true; do make clean; make -j 8; done and while true; do on-off-cpu 1; done at the same time. (on-off-cpu 1 simple does echo 0/1 > /sys/.../cpu1/online thing). Suprisingly the box (dual-core Core2) is quite usable. In fact I'm typing this on right now in gnome-terminal and things are moving just fine. Also this is running with most of the debug features enabled (lockdep, mutex, etc) no BUG_ONs or lockdep complaints so far. I believe I addressed all of the Dmitry's comments for original Linus' version. I changed both fair and rt balancer to mask out non-active cpus. And replaced cpu_is_offline() with !cpu_active() in the main scheduler code where it made sense (to me). Signed-off-by: Max Krasnyanskiy Acked-by: Linus Torvalds Acked-by: Peter Zijlstra Acked-by: Gregory Haskins Cc: dmitry.adamushko@gmail.com Cc: pj@sgi.com Signed-off-by: Ingo Molnar --- include/linux/cpumask.h | 6 ++- include/linux/cpuset.h | 7 ++++ init/main.c | 7 ++++ kernel/cpu.c | 30 +++++++++++--- kernel/cpuset.c | 2 +- kernel/sched.c | 108 ++++++++++++++++++++---------------------------- kernel/sched_fair.c | 3 ++ kernel/sched_rt.c | 7 ++++ 8 files changed, 99 insertions(+), 71 deletions(-) (limited to 'include') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index c24875bd9c5b..d614d2472798 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -359,13 +359,14 @@ static inline void __cpus_fold(cpumask_t *dstp, const cpumask_t *origp, /* * The following particular system cpumasks and operations manage - * possible, present and online cpus. Each of them is a fixed size + * possible, present, active and online cpus. Each of them is a fixed size * bitmap of size NR_CPUS. * * #ifdef CONFIG_HOTPLUG_CPU * cpu_possible_map - has bit 'cpu' set iff cpu is populatable * cpu_present_map - has bit 'cpu' set iff cpu is populated * cpu_online_map - has bit 'cpu' set iff cpu available to scheduler + * cpu_active_map - has bit 'cpu' set iff cpu available to migration * #else * cpu_possible_map - has bit 'cpu' set iff cpu is populated * cpu_present_map - copy of cpu_possible_map @@ -416,6 +417,7 @@ static inline void __cpus_fold(cpumask_t *dstp, const cpumask_t *origp, extern cpumask_t cpu_possible_map; extern cpumask_t cpu_online_map; extern cpumask_t cpu_present_map; +extern cpumask_t cpu_active_map; #if NR_CPUS > 1 #define num_online_cpus() cpus_weight(cpu_online_map) @@ -424,6 +426,7 @@ extern cpumask_t cpu_present_map; #define cpu_online(cpu) cpu_isset((cpu), cpu_online_map) #define cpu_possible(cpu) cpu_isset((cpu), cpu_possible_map) #define cpu_present(cpu) cpu_isset((cpu), cpu_present_map) +#define cpu_active(cpu) cpu_isset((cpu), cpu_active_map) #else #define num_online_cpus() 1 #define num_possible_cpus() 1 @@ -431,6 +434,7 @@ extern cpumask_t cpu_present_map; #define cpu_online(cpu) ((cpu) == 0) #define cpu_possible(cpu) ((cpu) == 0) #define cpu_present(cpu) ((cpu) == 0) +#define cpu_active(cpu) ((cpu) == 0) #endif #define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 038578362b47..e8f450c499b0 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -78,6 +78,8 @@ extern void cpuset_track_online_nodes(void); extern int current_cpuset_is_being_rebound(void); +extern void rebuild_sched_domains(void); + #else /* !CONFIG_CPUSETS */ static inline int cpuset_init_early(void) { return 0; } @@ -156,6 +158,11 @@ static inline int current_cpuset_is_being_rebound(void) return 0; } +static inline void rebuild_sched_domains(void) +{ + partition_sched_domains(0, NULL, NULL); +} + #endif /* !CONFIG_CPUSETS */ #endif /* _LINUX_CPUSET_H */ diff --git a/init/main.c b/init/main.c index edeace036fd9..dd25259530ea 100644 --- a/init/main.c +++ b/init/main.c @@ -415,6 +415,13 @@ static void __init smp_init(void) { unsigned int cpu; + /* + * Set up the current CPU as possible to migrate to. + * The other ones will be done by cpu_up/cpu_down() + */ + cpu = smp_processor_id(); + cpu_set(cpu, cpu_active_map); + /* FIXME: This should be done in userspace --RR */ for_each_present_cpu(cpu) { if (num_online_cpus() >= setup_max_cpus) diff --git a/kernel/cpu.c b/kernel/cpu.c index cfb1d43ab801..a1ac7ea245d7 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -64,6 +64,8 @@ void __init cpu_hotplug_init(void) cpu_hotplug.refcount = 0; } +cpumask_t cpu_active_map; + #ifdef CONFIG_HOTPLUG_CPU void get_online_cpus(void) @@ -291,11 +293,20 @@ int __ref cpu_down(unsigned int cpu) int err = 0; cpu_maps_update_begin(); - if (cpu_hotplug_disabled) + + if (cpu_hotplug_disabled) { err = -EBUSY; - else - err = _cpu_down(cpu, 0); + goto out; + } + + cpu_clear(cpu, cpu_active_map); + + err = _cpu_down(cpu, 0); + + if (cpu_online(cpu)) + cpu_set(cpu, cpu_active_map); +out: cpu_maps_update_done(); return err; } @@ -355,11 +366,18 @@ int __cpuinit cpu_up(unsigned int cpu) } cpu_maps_update_begin(); - if (cpu_hotplug_disabled) + + if (cpu_hotplug_disabled) { err = -EBUSY; - else - err = _cpu_up(cpu, 0); + goto out; + } + err = _cpu_up(cpu, 0); + + if (cpu_online(cpu)) + cpu_set(cpu, cpu_active_map); + +out: cpu_maps_update_done(); return err; } diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 459d601947a8..3c3ef02f65f1 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -564,7 +564,7 @@ update_domain_attr(struct sched_domain_attr *dattr, struct cpuset *c) * partition_sched_domains(). */ -static void rebuild_sched_domains(void) +void rebuild_sched_domains(void) { struct kfifo *q; /* queue of cpusets to be scanned */ struct cpuset *cp; /* scans q */ diff --git a/kernel/sched.c b/kernel/sched.c index 1ee18dbb4516..c237624a8a04 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2881,7 +2881,7 @@ static void sched_migrate_task(struct task_struct *p, int dest_cpu) rq = task_rq_lock(p, &flags); if (!cpu_isset(dest_cpu, p->cpus_allowed) - || unlikely(cpu_is_offline(dest_cpu))) + || unlikely(!cpu_active(dest_cpu))) goto out; /* force the process onto the specified CPU */ @@ -3849,7 +3849,7 @@ int select_nohz_load_balancer(int stop_tick) /* * If we are going offline and still the leader, give up! */ - if (cpu_is_offline(cpu) && + if (!cpu_active(cpu) && atomic_read(&nohz.load_balancer) == cpu) { if (atomic_cmpxchg(&nohz.load_balancer, cpu, -1) != cpu) BUG(); @@ -5876,7 +5876,7 @@ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu) struct rq *rq_dest, *rq_src; int ret = 0, on_rq; - if (unlikely(cpu_is_offline(dest_cpu))) + if (unlikely(!cpu_active(dest_cpu))) return ret; rq_src = cpu_rq(src_cpu); @@ -7553,18 +7553,6 @@ void __attribute__((weak)) arch_update_cpu_topology(void) { } -/* - * Free current domain masks. - * Called after all cpus are attached to NULL domain. - */ -static void free_sched_domains(void) -{ - ndoms_cur = 0; - if (doms_cur != &fallback_doms) - kfree(doms_cur); - doms_cur = &fallback_doms; -} - /* * Set up scheduler domains and groups. Callers must hold the hotplug lock. * For now this just excludes isolated cpus, but could be used to @@ -7643,7 +7631,7 @@ static int dattrs_equal(struct sched_domain_attr *cur, int idx_cur, * ownership of it and will kfree it when done with it. If the caller * failed the kmalloc call, then it can pass in doms_new == NULL, * and partition_sched_domains() will fallback to the single partition - * 'fallback_doms'. + * 'fallback_doms', it also forces the domains to be rebuilt. * * Call with hotplug lock held */ @@ -7657,12 +7645,8 @@ void partition_sched_domains(int ndoms_new, cpumask_t *doms_new, /* always unregister in case we don't destroy any domains */ unregister_sched_domain_sysctl(); - if (doms_new == NULL) { - ndoms_new = 1; - doms_new = &fallback_doms; - cpus_andnot(doms_new[0], cpu_online_map, cpu_isolated_map); - dattr_new = NULL; - } + if (doms_new == NULL) + ndoms_new = 0; /* Destroy deleted domains */ for (i = 0; i < ndoms_cur; i++) { @@ -7677,6 +7661,14 @@ match1: ; } + if (doms_new == NULL) { + ndoms_cur = 0; + ndoms_new = 1; + doms_new = &fallback_doms; + cpus_andnot(doms_new[0], cpu_online_map, cpu_isolated_map); + dattr_new = NULL; + } + /* Build new domains */ for (i = 0; i < ndoms_new; i++) { for (j = 0; j < ndoms_cur; j++) { @@ -7707,17 +7699,10 @@ match2: #if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT) int arch_reinit_sched_domains(void) { - int err; - get_online_cpus(); - mutex_lock(&sched_domains_mutex); - detach_destroy_domains(&cpu_online_map); - free_sched_domains(); - err = arch_init_sched_domains(&cpu_online_map); - mutex_unlock(&sched_domains_mutex); + rebuild_sched_domains(); put_online_cpus(); - - return err; + return 0; } static ssize_t sched_power_savings_store(const char *buf, size_t count, int smt) @@ -7783,14 +7768,30 @@ int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls) } #endif /* CONFIG_SCHED_MC || CONFIG_SCHED_SMT */ +#ifndef CONFIG_CPUSETS /* - * Force a reinitialization of the sched domains hierarchy. The domains - * and groups cannot be updated in place without racing with the balancing - * code, so we temporarily attach all running cpus to the NULL domain - * which will prevent rebalancing while the sched domains are recalculated. + * Add online and remove offline CPUs from the scheduler domains. + * When cpusets are enabled they take over this function. */ static int update_sched_domains(struct notifier_block *nfb, unsigned long action, void *hcpu) +{ + switch (action) { + case CPU_ONLINE: + case CPU_ONLINE_FROZEN: + case CPU_DEAD: + case CPU_DEAD_FROZEN: + partition_sched_domains(0, NULL, NULL); + return NOTIFY_OK; + + default: + return NOTIFY_DONE; + } +} +#endif + +static int update_runtime(struct notifier_block *nfb, + unsigned long action, void *hcpu) { int cpu = (int)(long)hcpu; @@ -7798,44 +7799,18 @@ static int update_sched_domains(struct notifier_block *nfb, case CPU_DOWN_PREPARE: case CPU_DOWN_PREPARE_FROZEN: disable_runtime(cpu_rq(cpu)); - /* fall-through */ - case CPU_UP_PREPARE: - case CPU_UP_PREPARE_FROZEN: - detach_destroy_domains(&cpu_online_map); - free_sched_domains(); return NOTIFY_OK; - case CPU_DOWN_FAILED: case CPU_DOWN_FAILED_FROZEN: case CPU_ONLINE: case CPU_ONLINE_FROZEN: enable_runtime(cpu_rq(cpu)); - /* fall-through */ - case CPU_UP_CANCELED: - case CPU_UP_CANCELED_FROZEN: - case CPU_DEAD: - case CPU_DEAD_FROZEN: - /* - * Fall through and re-initialise the domains. - */ - break; + return NOTIFY_OK; + default: return NOTIFY_DONE; } - -#ifndef CONFIG_CPUSETS - /* - * Create default domain partitioning if cpusets are disabled. - * Otherwise we let cpusets rebuild the domains based on the - * current setup. - */ - - /* The hotplug lock is already held by cpu_up/cpu_down */ - arch_init_sched_domains(&cpu_online_map); -#endif - - return NOTIFY_OK; } void __init sched_init_smp(void) @@ -7855,8 +7830,15 @@ void __init sched_init_smp(void) cpu_set(smp_processor_id(), non_isolated_cpus); mutex_unlock(&sched_domains_mutex); put_online_cpus(); + +#ifndef CONFIG_CPUSETS /* XXX: Theoretical race here - CPU may be hotplugged now */ hotcpu_notifier(update_sched_domains, 0); +#endif + + /* RT runtime code needs to handle some hotplug events */ + hotcpu_notifier(update_runtime, 0); + init_hrtick(); /* Move init over to a non-isolated CPU */ diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index f2aa987027d6..d924c679dfac 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -1004,6 +1004,8 @@ static void yield_task_fair(struct rq *rq) * not idle and an idle cpu is available. The span of cpus to * search starts with cpus closest then further out as needed, * so we always favor a closer, idle cpu. + * Domains may include CPUs that are not usable for migration, + * hence we need to mask them out (cpu_active_map) * * Returns the CPU we should wake onto. */ @@ -1031,6 +1033,7 @@ static int wake_idle(int cpu, struct task_struct *p) || ((sd->flags & SD_WAKE_IDLE_FAR) && !task_hot(p, task_rq(p)->clock, sd))) { cpus_and(tmp, sd->span, p->cpus_allowed); + cpus_and(tmp, tmp, cpu_active_map); for_each_cpu_mask(i, tmp) { if (idle_cpu(i)) { if (i != task_cpu(p)) { diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index d3d1cccb3d7b..50735bb96149 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -933,6 +933,13 @@ static int find_lowest_rq(struct task_struct *task) if (!cpupri_find(&task_rq(task)->rd->cpupri, task, lowest_mask)) return -1; /* No targets found */ + /* + * Only consider CPUs that are usable for migration. + * I guess we might want to change cpupri_find() to ignore those + * in the first place. + */ + cpus_and(*lowest_mask, *lowest_mask, cpu_active_map); + /* * At this point we have built a mask of cpus representing the * lowest priority tasks in the system. Now we want to elect -- cgit v1.2.3 From 32172561889868c0ea422ea8570f0413963a815f Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Thu, 17 Jul 2008 14:22:34 -0700 Subject: x86: suppress sparse returning void warnings include/asm/paravirt.h:1404:2: warning: returning void-valued expression include/asm/paravirt.h:1414:2: warning: returning void-valued expression Signed-off-by: Harvey Harrison Signed-off-by: Ingo Molnar --- include/asm-x86/paravirt.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index b2aba8fdaae7..27c9f22ba095 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1401,7 +1401,7 @@ static inline int __raw_spin_is_contended(struct raw_spinlock *lock) static __always_inline void __raw_spin_lock(struct raw_spinlock *lock) { - return PVOP_VCALL1(pv_lock_ops.spin_lock, lock); + PVOP_VCALL1(pv_lock_ops.spin_lock, lock); } static __always_inline int __raw_spin_trylock(struct raw_spinlock *lock) @@ -1411,7 +1411,7 @@ static __always_inline int __raw_spin_trylock(struct raw_spinlock *lock) static __always_inline void __raw_spin_unlock(struct raw_spinlock *lock) { - return PVOP_VCALL1(pv_lock_ops.spin_unlock, lock); + PVOP_VCALL1(pv_lock_ops.spin_unlock, lock); } #endif -- cgit v1.2.3 From 1b427c153a08fdbc092c2bdbf845b92fda58d857 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 18 Jul 2008 14:01:39 +0200 Subject: sched: fix build error, provide partition_sched_domains() unconditionally MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit provide an empty partition_sched_domains() definition for the UP case: include/linux/cpuset.h: In function ‘rebuild_sched_domains': include/linux/cpuset.h:163: error: implicit declaration of function ‘partition_sched_domains' Signed-off-by: Ingo Molnar --- include/linux/sched.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index 1941d8b5cf11..26da921530fe 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -824,7 +824,16 @@ extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new, struct sched_domain_attr *dattr_new); extern int arch_reinit_sched_domains(void); -#endif /* CONFIG_SMP */ +#else /* CONFIG_SMP */ + +struct sched_domain_attr; + +static inline void +partition_sched_domains(int ndoms_new, cpumask_t *doms_new, + struct sched_domain_attr *dattr_new) +{ +} +#endif /* !CONFIG_SMP */ struct io_context; /* See blkdev.h */ #define NGROUPS_SMALL 32 -- cgit v1.2.3 From 1f067167a83d1c7f80437fd1d32b55508aaca009 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 15 Jul 2008 00:02:28 -0700 Subject: x86: seperate memtest from init_64.c it's separate functionality that deserves its own file. This also prepares 32-bit memtest support. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/mm/Makefile | 1 + arch/x86/mm/init_64.c | 112 -------------------------------------------- arch/x86/mm/memtest.c | 123 +++++++++++++++++++++++++++++++++++++++++++++++++ include/asm-x86/e820.h | 8 ++++ 4 files changed, 132 insertions(+), 112 deletions(-) create mode 100644 arch/x86/mm/memtest.c (limited to 'include') diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile index 9873716e9f76..1fbb844c3d7a 100644 --- a/arch/x86/mm/Makefile +++ b/arch/x86/mm/Makefile @@ -21,3 +21,4 @@ obj-$(CONFIG_K8_NUMA) += k8topology_64.o endif obj-$(CONFIG_ACPI_NUMA) += srat_$(BITS).o +obj-$(CONFIG_MEMTEST) += memtest.o diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 306049edd553..ec37121f6709 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -517,118 +517,6 @@ static void __init init_gbpages(void) direct_gbpages = 0; } -#ifdef CONFIG_MEMTEST - -static void __init memtest(unsigned long start_phys, unsigned long size, - unsigned pattern) -{ - unsigned long i; - unsigned long *start; - unsigned long start_bad; - unsigned long last_bad; - unsigned long val; - unsigned long start_phys_aligned; - unsigned long count; - unsigned long incr; - - switch (pattern) { - case 0: - val = 0UL; - break; - case 1: - val = -1UL; - break; - case 2: - val = 0x5555555555555555UL; - break; - case 3: - val = 0xaaaaaaaaaaaaaaaaUL; - break; - default: - return; - } - - incr = sizeof(unsigned long); - start_phys_aligned = ALIGN(start_phys, incr); - count = (size - (start_phys_aligned - start_phys))/incr; - start = __va(start_phys_aligned); - start_bad = 0; - last_bad = 0; - - for (i = 0; i < count; i++) - start[i] = val; - for (i = 0; i < count; i++, start++, start_phys_aligned += incr) { - if (*start != val) { - if (start_phys_aligned == last_bad + incr) { - last_bad += incr; - } else { - if (start_bad) { - printk(KERN_CONT "\n %016lx bad mem addr %016lx - %016lx reserved", - val, start_bad, last_bad + incr); - reserve_early(start_bad, last_bad - start_bad, "BAD RAM"); - } - start_bad = last_bad = start_phys_aligned; - } - } - } - if (start_bad) { - printk(KERN_CONT "\n %016lx bad mem addr %016lx - %016lx reserved", - val, start_bad, last_bad + incr); - reserve_early(start_bad, last_bad - start_bad, "BAD RAM"); - } - -} - -/* default is disabled */ -static int memtest_pattern __initdata; - -static int __init parse_memtest(char *arg) -{ - if (arg) - memtest_pattern = simple_strtoul(arg, NULL, 0); - return 0; -} - -early_param("memtest", parse_memtest); - -static void __init early_memtest(unsigned long start, unsigned long end) -{ - u64 t_start, t_size; - unsigned pattern; - - if (!memtest_pattern) - return; - - printk(KERN_INFO "early_memtest: pattern num %d", memtest_pattern); - for (pattern = 0; pattern < memtest_pattern; pattern++) { - t_start = start; - t_size = 0; - while (t_start < end) { - t_start = find_e820_area_size(t_start, &t_size, 1); - - /* done ? */ - if (t_start >= end) - break; - if (t_start + t_size > end) - t_size = end - t_start; - - printk(KERN_CONT "\n %016llx - %016llx pattern %d", - (unsigned long long)t_start, - (unsigned long long)t_start + t_size, pattern); - - memtest(t_start, t_size, pattern); - - t_start += t_size; - } - } - printk(KERN_CONT "\n"); -} -#else -static void __init early_memtest(unsigned long start, unsigned long end) -{ -} -#endif - static unsigned long __init kernel_physical_mapping_init(unsigned long start, unsigned long end, unsigned long page_size_mask) diff --git a/arch/x86/mm/memtest.c b/arch/x86/mm/memtest.c new file mode 100644 index 000000000000..672e17f8262a --- /dev/null +++ b/arch/x86/mm/memtest.c @@ -0,0 +1,123 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static void __init memtest(unsigned long start_phys, unsigned long size, + unsigned pattern) +{ + unsigned long i; + unsigned long *start; + unsigned long start_bad; + unsigned long last_bad; + unsigned long val; + unsigned long start_phys_aligned; + unsigned long count; + unsigned long incr; + + switch (pattern) { + case 0: + val = 0UL; + break; + case 1: + val = -1UL; + break; + case 2: +#ifdef CONFIG_X86_64 + val = 0x5555555555555555UL; +#else + val = 0x55555555UL; +#endif + break; + case 3: +#ifdef CONFIG_X86_64 + val = 0xaaaaaaaaaaaaaaaaUL; +#else + val = 0xaaaaaaaaUL; +#endif + break; + default: + return; + } + + incr = sizeof(unsigned long); + start_phys_aligned = ALIGN(start_phys, incr); + count = (size - (start_phys_aligned - start_phys))/incr; + start = __va(start_phys_aligned); + start_bad = 0; + last_bad = 0; + + for (i = 0; i < count; i++) + start[i] = val; + for (i = 0; i < count; i++, start++, start_phys_aligned += incr) { + if (*start != val) { + if (start_phys_aligned == last_bad + incr) { + last_bad += incr; + } else { + if (start_bad) { + printk(KERN_CONT "\n %010lx bad mem addr %010lx - %010lx reserved", + val, start_bad, last_bad + incr); + reserve_early(start_bad, last_bad - start_bad, "BAD RAM"); + } + start_bad = last_bad = start_phys_aligned; + } + } + } + if (start_bad) { + printk(KERN_CONT "\n %016lx bad mem addr %010lx - %010lx reserved", + val, start_bad, last_bad + incr); + reserve_early(start_bad, last_bad - start_bad, "BAD RAM"); + } + +} + +/* default is disabled */ +static int memtest_pattern __initdata; + +static int __init parse_memtest(char *arg) +{ + if (arg) + memtest_pattern = simple_strtoul(arg, NULL, 0); + return 0; +} + +early_param("memtest", parse_memtest); + +void __init early_memtest(unsigned long start, unsigned long end) +{ + u64 t_start, t_size; + unsigned pattern; + + if (!memtest_pattern) + return; + + printk(KERN_INFO "early_memtest: pattern num %d", memtest_pattern); + for (pattern = 0; pattern < memtest_pattern; pattern++) { + t_start = start; + t_size = 0; + while (t_start < end) { + t_start = find_e820_area_size(t_start, &t_size, 1); + + /* done ? */ + if (t_start >= end) + break; + if (t_start + t_size > end) + t_size = end - t_start; + + printk(KERN_CONT "\n %010llx - %010llx pattern %d", + (unsigned long long)t_start, + (unsigned long long)t_start + t_size, pattern); + + memtest(t_start, t_size, pattern); + + t_start += t_size; + } + } + printk(KERN_CONT "\n"); +} diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h index 06633b01dd5b..16a31e2c7c57 100644 --- a/include/asm-x86/e820.h +++ b/include/asm-x86/e820.h @@ -90,6 +90,14 @@ static inline void e820_mark_nosave_regions(unsigned long limit_pfn) } #endif +#ifdef CONFIG_MEMTEST +extern void early_memtest(unsigned long start, unsigned long end); +#else +static inline void early_memtest(unsigned long start, unsigned long end) +{ +} +#endif + extern unsigned long end_user_pfn; extern u64 find_e820_area(u64 start, u64 end, u64 size, u64 align); -- cgit v1.2.3 From baa1318841d4bc95d783e6c15219b264720002c8 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Mon, 14 Jul 2008 18:44:51 +0100 Subject: x86: APIC: Make apic_verbosity unsigned As a microoptimisation, make apic_verbosity unsigned. This will make apic_printk(APIC_QUIET, ...) expand into just printk(...) with the surrounding condition and a reference to apic_verbosity removed. Signed-off-by: Maciej W. Rozycki Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic_32.c | 2 +- arch/x86/kernel/apic_64.c | 2 +- include/asm-x86/apic.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c index d2a7eb511d6b..7f30c0f3dbe4 100644 --- a/arch/x86/kernel/apic_32.c +++ b/arch/x86/kernel/apic_32.c @@ -75,7 +75,7 @@ char system_vectors[NR_VECTORS] = { [0 ... NR_VECTORS-1] = SYS_VECTOR_FREE}; /* * Debug level, exported for io_apic.c */ -int apic_verbosity; +unsigned int apic_verbosity; int pic_mode; diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index ce294d623e5f..98c70f044e19 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -54,7 +54,7 @@ EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok); /* * Debug level, exported for io_apic.c */ -int apic_verbosity; +unsigned int apic_verbosity; /* Have we found an MP table */ int smp_found_config; diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index ea866baccefc..a3dd4c3e3629 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -37,7 +37,7 @@ extern void generic_apic_probe(void); #ifdef CONFIG_X86_LOCAL_APIC -extern int apic_verbosity; +extern unsigned int apic_verbosity; extern int local_apic_timer_c2_ok; extern int ioapic_force; -- cgit v1.2.3 From 35b680557f95564f70f21a8d3f5c72e101fab260 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Fri, 18 Jul 2008 01:47:44 +0100 Subject: x86: more apic debugging [ mingo@elte.hu: picked up this patch from Maciej, lets make apic=debug print out more info - we had a lot of APIC changes ] Signed-off-by: Ingo Molnar --- include/asm-x86/apic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index a3dd4c3e3629..b96460a7190d 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -12,7 +12,7 @@ #define ARCH_APICTIMER_STOPS_ON_C3 1 -#define Dprintk(x...) +#define Dprintk printk /* * Debugging macros -- cgit v1.2.3 From 8450e85399031a192ffb34f0f9ac981173db6a31 Mon Sep 17 00:00:00 2001 From: Alexander van Heukelum Date: Sat, 5 Jul 2008 19:53:46 +0200 Subject: x86, cleanup: fix description of __fls(): __fls(0) is undefined Ricardo M. Correia spotted that the use of __fls() in fls64() did not seem to make sense. In fact fls64()'s implementation is fine, but the description of __fls() was wrong. Fix that. Reported-by: "Ricardo M. Correia" Signed-off-by: Alexander van Heukelum Cc: Andrew Morton Cc: Andi Kleen Signed-off-by: Ingo Molnar --- include/asm-x86/bitops.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/bitops.h b/include/asm-x86/bitops.h index 96b1829cea15..cfb2b64f76e7 100644 --- a/include/asm-x86/bitops.h +++ b/include/asm-x86/bitops.h @@ -356,7 +356,7 @@ static inline unsigned long ffz(unsigned long word) * __fls: find last set bit in word * @word: The word to search * - * Undefined if no zero exists, so code should check against ~0UL first. + * Undefined if no set bit exists, so code should check against 0 first. */ static inline unsigned long __fls(unsigned long word) { -- cgit v1.2.3 From 7019cc2dd6fafcdc6b104005482dc910dcdbb797 Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Wed, 9 Jul 2008 15:27:19 -0500 Subject: x86 BIOS interface for RTC on SGI UV Real-time code needs to know the number of cycles per second on SGI UV. The information is provided via a run time BIOS call. This patch provides the linux side of that interface. This is the first of several run time BIOS calls to be defined in uv/bios.h and bios_uv.c. Note that BIOS_CALL() is just a stub for now. The bios side is being worked on. Signed-off-by: Russ Anderson Cc: Jack Steiner Signed-off-by: Ingo Molnar --- arch/x86/kernel/Makefile | 1 + arch/x86/kernel/bios_uv.c | 48 ++++++++++++++++++++++++++++ arch/x86/kernel/genx2apic_uv_x.c | 23 ++++++++++++++ include/asm-x86/uv/bios.h | 68 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 140 insertions(+) create mode 100644 arch/x86/kernel/bios_uv.c create mode 100644 include/asm-x86/uv/bios.h (limited to 'include') diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index da140611bb57..b78a17b12810 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -102,6 +102,7 @@ obj-$(CONFIG_OLPC) += olpc.o # 64 bit specific files ifeq ($(CONFIG_X86_64),y) obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o + obj-y += bios_uv.o obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o obj-$(CONFIG_AUDIT) += audit_64.o diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c new file mode 100644 index 000000000000..c639bd55391c --- /dev/null +++ b/arch/x86/kernel/bios_uv.c @@ -0,0 +1,48 @@ +/* + * BIOS run time interface routines. + * + * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include + +const char * +x86_bios_strerror(long status) +{ + const char *str; + switch (status) { + case 0: str = "Call completed without error"; break; + case -1: str = "Not implemented"; break; + case -2: str = "Invalid argument"; break; + case -3: str = "Call completed with error"; break; + default: str = "Unknown BIOS status code"; break; + } + return str; +} + +long +x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second, + unsigned long *drift_info) +{ + struct uv_bios_retval isrv; + + BIOS_CALL(isrv, BIOS_FREQ_BASE, which, 0, 0, 0, 0, 0, 0); + *ticks_per_second = isrv.v0; + *drift_info = isrv.v1; + return isrv.status; +} +EXPORT_SYMBOL_GPL(x86_bios_freq_base); diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index 711f11c30b06..3c3929340692 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -24,6 +24,7 @@ #include #include #include +#include DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info); EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info); @@ -40,6 +41,9 @@ EXPORT_SYMBOL_GPL(uv_cpu_to_blade); short uv_possible_blades; EXPORT_SYMBOL_GPL(uv_possible_blades); +unsigned long sn_rtc_cycles_per_second; +EXPORT_SYMBOL(sn_rtc_cycles_per_second); + /* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */ static cpumask_t uv_target_cpus(void) @@ -272,6 +276,23 @@ static __init void map_mmioh_high(int max_pnode) map_high("MMIOH", mmioh.s.base, shift, map_uc); } +static __init void uv_rtc_init(void) +{ + long status, ticks_per_sec, drift; + + status = + x86_bios_freq_base(BIOS_FREQ_BASE_REALTIME_CLOCK, &ticks_per_sec, + &drift); + if (status != 0 || ticks_per_sec < 100000) { + printk(KERN_WARNING + "unable to determine platform RTC clock frequency, " + "guessing.\n"); + /* BIOS gives wrong value for clock freq. so guess */ + sn_rtc_cycles_per_second = 1000000000000UL / 30000UL; + } else + sn_rtc_cycles_per_second = ticks_per_sec; +} + static __init void uv_system_init(void) { union uvh_si_addr_map_config_u m_n_config; @@ -326,6 +347,8 @@ static __init void uv_system_init(void) gnode_upper = (((unsigned long)node_id.s.node_id) & ~((1 << n_val) - 1)) << m_val; + uv_rtc_init(); + for_each_present_cpu(cpu) { nid = cpu_to_node(cpu); pnode = uv_apicid_to_pnode(per_cpu(x86_cpu_to_apicid, cpu)); diff --git a/include/asm-x86/uv/bios.h b/include/asm-x86/uv/bios.h new file mode 100644 index 000000000000..aa73362ff5df --- /dev/null +++ b/include/asm-x86/uv/bios.h @@ -0,0 +1,68 @@ +#ifndef _ASM_X86_BIOS_H +#define _ASM_X86_BIOS_H + +/* + * BIOS layer definitions. + * + * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include + +#define BIOS_FREQ_BASE 0x01000001 + +enum { + BIOS_FREQ_BASE_PLATFORM = 0, + BIOS_FREQ_BASE_INTERVAL_TIMER = 1, + BIOS_FREQ_BASE_REALTIME_CLOCK = 2 +}; + +# define BIOS_CALL(result, a0, a1, a2, a3, a4, a5, a6, a7) \ + do { \ + /* XXX - the real call goes here */ \ + result.status = BIOS_STATUS_UNIMPLEMENTED; \ + isrv.v0 = 0; \ + isrv.v1 = 0; \ + } while (0) + +enum { + BIOS_STATUS_SUCCESS = 0, + BIOS_STATUS_UNIMPLEMENTED = -1, + BIOS_STATUS_EINVAL = -2, + BIOS_STATUS_ERROR = -3 +}; + +struct uv_bios_retval { + /* + * A zero status value indicates call completed without error. + * A negative status value indicates reason of call failure. + * A positive status value indicates success but an + * informational value should be printed (e.g., "reboot for + * change to take effect"). + */ + s64 status; + u64 v0; + u64 v1; + u64 v2; +}; + +extern long +x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second, + unsigned long *drift_info); +extern const char *x86_bios_strerror(long status); + +#endif /* _ASM_X86_BIOS_H */ -- cgit v1.2.3 From 723edb5060855ef36ddeca51a070784b0e0d16df Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Mon, 14 Jul 2008 17:40:23 -0300 Subject: Fix typos from signal_32/64.h merge Fallout from commit 33185c504f8e521b398536b5a8d415779a24593c ("x86: merge signal_32/64.h") Thanks to Dick Streefland who provided an useful testcase on http://lkml.org/lkml/2008/3/17/205 (only applicable to 2.6.24.x), that helped a lot as a deterministic way to bisect an issue that leaded to this fix. Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Luiz Fernando N. Capitulino Cc: Roland McGrath Cc: Signed-off-by: Ingo Molnar --- include/asm-x86/signal.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-x86/signal.h b/include/asm-x86/signal.h index f15186d39c69..6dac49364e95 100644 --- a/include/asm-x86/signal.h +++ b/include/asm-x86/signal.h @@ -181,12 +181,12 @@ typedef struct sigaltstack { #ifdef __KERNEL__ #include -#ifdef __386__ +#ifdef __i386__ #define __HAVE_ARCH_SIG_BITOPS #define sigaddset(set,sig) \ - (__builtin_constantp(sig) \ + (__builtin_constant_p(sig) \ ? __const_sigaddset((set), (sig)) \ : __gen_sigaddset((set), (sig))) -- cgit v1.2.3 From b8f8c3cf0a4ac0632ec3f0e15e9dc0c29de917af Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 18 Jul 2008 17:27:28 +0200 Subject: nohz: prevent tick stop outside of the idle loop Jack Ren and Eric Miao tracked down the following long standing problem in the NOHZ code: scheduler switch to idle task enable interrupts Window starts here ----> interrupt happens (does not set NEED_RESCHED) irq_exit() stops the tick ----> interrupt happens (does set NEED_RESCHED) return from schedule() cpu_idle(): preempt_disable(); Window ends here The interrupts can happen at any point inside the race window. The first interrupt stops the tick, the second one causes the scheduler to rerun and switch away from idle again and we end up with the tick disabled. The fact that it needs two interrupts where the first one does not set NEED_RESCHED and the second one does made the bug obscure and extremly hard to reproduce and analyse. Kudos to Jack and Eric. Solution: Limit the NOHZ functionality to the idle loop to make sure that we can not run into such a situation ever again. cpu_idle() { preempt_disable(); while(1) { tick_nohz_stop_sched_tick(1); <- tell NOHZ code that we are in the idle loop while (!need_resched()) halt(); tick_nohz_restart_sched_tick(); <- disables NOHZ mode preempt_enable_no_resched(); schedule(); preempt_disable(); } } In hindsight we should have done this forever, but ... /me grabs a large brown paperbag. Debugged-by: Jack Ren , Debugged-by: eric miao Signed-off-by: Thomas Gleixner --- arch/arm/kernel/process.c | 2 +- arch/avr32/kernel/process.c | 2 +- arch/blackfin/kernel/process.c | 2 +- arch/mips/kernel/process.c | 2 +- arch/powerpc/kernel/idle.c | 2 +- arch/powerpc/platforms/iseries/setup.c | 4 ++-- arch/sh/kernel/process_32.c | 2 +- arch/sparc64/kernel/process.c | 2 +- arch/um/kernel/process.c | 2 +- arch/x86/kernel/process_32.c | 2 +- arch/x86/kernel/process_64.c | 2 +- include/linux/tick.h | 5 +++-- kernel/softirq.c | 2 +- kernel/time/tick-sched.c | 12 ++++++++++-- 14 files changed, 26 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 46bf2ede6128..84f5a4c778fb 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -164,7 +164,7 @@ void cpu_idle(void) if (!idle) idle = default_idle; leds_event(led_idle_start); - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched()) idle(); leds_event(led_idle_end); diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c index 6cf9df176274..ff820a9e743a 100644 --- a/arch/avr32/kernel/process.c +++ b/arch/avr32/kernel/process.c @@ -31,7 +31,7 @@ void cpu_idle(void) { /* endless idle loop with no priority at all */ while (1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched()) cpu_idle_sleep(); tick_nohz_restart_sched_tick(); diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 53c2cd255441..77800dd83e57 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -105,7 +105,7 @@ void cpu_idle(void) #endif if (!idle) idle = default_idle; - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched()) idle(); tick_nohz_restart_sched_tick(); diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 2c09a442e5e5..bdead3aad253 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -53,7 +53,7 @@ void __noreturn cpu_idle(void) { /* endless idle loop with no priority at all */ while (1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched()) { #ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG extern void smtc_idle_loop_hook(void); diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c index c3cf0e8f3ac1..d308a9f70f1b 100644 --- a/arch/powerpc/kernel/idle.c +++ b/arch/powerpc/kernel/idle.c @@ -60,7 +60,7 @@ void cpu_idle(void) set_thread_flag(TIF_POLLING_NRFLAG); while (1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched() && !cpu_should_die()) { ppc64_runlatch_off(); diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index b72120751bbe..70b688c1aefb 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -561,7 +561,7 @@ static void yield_shared_processor(void) static void iseries_shared_idle(void) { while (1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched() && !hvlpevent_is_pending()) { local_irq_disable(); ppc64_runlatch_off(); @@ -591,7 +591,7 @@ static void iseries_dedicated_idle(void) set_thread_flag(TIF_POLLING_NRFLAG); while (1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); if (!need_resched()) { while (!need_resched()) { ppc64_runlatch_off(); diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index b98e37a1f54c..921892c351da 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -86,7 +86,7 @@ void cpu_idle(void) if (!idle) idle = default_idle; - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched()) idle(); tick_nohz_restart_sched_tick(); diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c index 2084f81a76e1..0798928ba361 100644 --- a/arch/sparc64/kernel/process.c +++ b/arch/sparc64/kernel/process.c @@ -97,7 +97,7 @@ void cpu_idle(void) set_thread_flag(TIF_POLLING_NRFLAG); while(1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched() && !cpu_is_offline(cpu)) sparc64_yield(cpu); diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 83603cfbde81..a1c6d07cac3e 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -243,7 +243,7 @@ void default_idle(void) if (need_resched()) schedule(); - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); nsecs = disable_timer(); idle_sleep(nsecs); tick_nohz_restart_sched_tick(); diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index f8476dfbb60d..1f5fa1cf16dd 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -166,7 +166,7 @@ void cpu_idle(void) /* endless idle loop with no priority at all */ while (1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched()) { void (*idle)(void); diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index e2319f39988b..c0a5c2a687e6 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -148,7 +148,7 @@ void cpu_idle(void) current_thread_info()->status |= TS_POLLING; /* endless idle loop with no priority at all */ while (1) { - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(1); while (!need_resched()) { void (*idle)(void); diff --git a/include/linux/tick.h b/include/linux/tick.h index a881c652f7e9..d3c02695dc5d 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -49,6 +49,7 @@ struct tick_sched { unsigned long check_clocks; enum tick_nohz_mode nohz_mode; ktime_t idle_tick; + int inidle; int tick_stopped; unsigned long idle_jiffies; unsigned long idle_calls; @@ -105,14 +106,14 @@ static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } #endif /* !CONFIG_GENERIC_CLOCKEVENTS */ # ifdef CONFIG_NO_HZ -extern void tick_nohz_stop_sched_tick(void); +extern void tick_nohz_stop_sched_tick(int inidle); extern void tick_nohz_restart_sched_tick(void); extern void tick_nohz_update_jiffies(void); extern ktime_t tick_nohz_get_sleep_length(void); extern void tick_nohz_stop_idle(int cpu); extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time); # else -static inline void tick_nohz_stop_sched_tick(void) { } +static inline void tick_nohz_stop_sched_tick(int inidle) { } static inline void tick_nohz_restart_sched_tick(void) { } static inline void tick_nohz_update_jiffies(void) { } static inline ktime_t tick_nohz_get_sleep_length(void) diff --git a/kernel/softirq.c b/kernel/softirq.c index 36e061740047..05f248039d77 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -312,7 +312,7 @@ void irq_exit(void) #ifdef CONFIG_NO_HZ /* Make sure that timer wheel updates are propagated */ if (!in_interrupt() && idle_cpu(smp_processor_id()) && !need_resched()) - tick_nohz_stop_sched_tick(); + tick_nohz_stop_sched_tick(0); rcu_irq_exit(); #endif preempt_enable_no_resched(); diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 86baa4f0dfe4..ee962d11107b 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -195,7 +195,7 @@ u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time) * Called either from the idle loop or from irq_exit() when an idle period was * just interrupted by an interrupt which did not cause a reschedule. */ -void tick_nohz_stop_sched_tick(void) +void tick_nohz_stop_sched_tick(int inidle) { unsigned long seq, last_jiffies, next_jiffies, delta_jiffies, flags; struct tick_sched *ts; @@ -224,6 +224,11 @@ void tick_nohz_stop_sched_tick(void) if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE)) goto end; + if (!inidle && !ts->inidle) + goto end; + + ts->inidle = 1; + if (need_resched()) goto end; @@ -372,11 +377,14 @@ void tick_nohz_restart_sched_tick(void) local_irq_disable(); tick_nohz_stop_idle(cpu); - if (!ts->tick_stopped) { + if (!ts->inidle || !ts->tick_stopped) { + ts->inidle = 0; local_irq_enable(); return; } + ts->inidle = 0; + rcu_exit_nohz(); /* Update jiffies first */ -- cgit v1.2.3 From 9781f39fd209cd93ab98b669814191acc67f32fd Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Thu, 10 Jul 2008 17:13:19 +0200 Subject: x86: consolidate the definition of the force_mwait variable The force_mwait variable iss defined either in arch/x86/kernel/cpu/amd.c or in arch/x86/kernel/setup_64.c, but it is only initialized and used in arch/x86/kernel/process.c. This patch moves the declaration to arch/x86/kernel/process.c. Signed-off-by: Thomas Petazzoni Cc: michael@free-electrons.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/amd.c | 2 -- arch/x86/kernel/process.c | 1 + include/asm-x86/processor.h | 2 -- 3 files changed, 1 insertion(+), 4 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 81a07ca65d44..cae9cabc3031 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -24,8 +24,6 @@ extern void vide(void); __asm__(".align 4\nvide: ret"); -int force_mwait __cpuinitdata; - static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) { if (cpuid_eax(0x80000000) >= 0x80000007) { diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 4d629c62f4f8..74f2d196adb4 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -15,6 +15,7 @@ unsigned long idle_nomwait; EXPORT_SYMBOL(idle_nomwait); struct kmem_cache *task_xstate_cachep; +static int force_mwait __cpuinitdata; int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) { diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h index 55402d2ab938..15cb82a44e89 100644 --- a/include/asm-x86/processor.h +++ b/include/asm-x86/processor.h @@ -722,8 +722,6 @@ static inline void __sti_mwait(unsigned long eax, unsigned long ecx) extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx); -extern int force_mwait; - extern void select_idle_routine(const struct cpuinfo_x86 *c); extern unsigned long boot_option_idle_override; -- cgit v1.2.3 From 6ac8d51f01d345af5ea4209004a9ea29b2f20891 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Date: Tue, 15 Jul 2008 21:09:13 +0530 Subject: x86: introducing asm-x86/traps.h Declaring x86 traps under one hood. Declaring x86 do_traps before defining them. Signed-off-by: Jaswinder Singh Cc: Andi Kleen Cc: David Woodhouse Cc: Alexander van Heukelum Signed-off-by: Ingo Molnar --- arch/x86/kernel/traps_32.c | 21 +-------------- arch/x86/kernel/traps_64.c | 22 +--------------- include/asm-x86/traps.h | 66 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 68 insertions(+), 41 deletions(-) create mode 100644 include/asm-x86/traps.h (limited to 'include') diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c index c971dce3847b..03df8e45e5a1 100644 --- a/arch/x86/kernel/traps_32.c +++ b/arch/x86/kernel/traps_32.c @@ -58,6 +58,7 @@ #include #include #include +#include #include "mach_traps.h" @@ -77,26 +78,6 @@ char ignore_fpu_irq; gate_desc idt_table[256] __attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, }; -asmlinkage void divide_error(void); -asmlinkage void debug(void); -asmlinkage void nmi(void); -asmlinkage void int3(void); -asmlinkage void overflow(void); -asmlinkage void bounds(void); -asmlinkage void invalid_op(void); -asmlinkage void device_not_available(void); -asmlinkage void coprocessor_segment_overrun(void); -asmlinkage void invalid_TSS(void); -asmlinkage void segment_not_present(void); -asmlinkage void stack_segment(void); -asmlinkage void general_protection(void); -asmlinkage void page_fault(void); -asmlinkage void coprocessor_error(void); -asmlinkage void simd_coprocessor_error(void); -asmlinkage void alignment_check(void); -asmlinkage void spurious_interrupt_bug(void); -asmlinkage void machine_check(void); - int panic_on_unrecovered_nmi; int kstack_depth_to_print = 24; static unsigned int code_bytes = 64; diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c index c664e6962009..3f18d73f420c 100644 --- a/arch/x86/kernel/traps_64.c +++ b/arch/x86/kernel/traps_64.c @@ -51,30 +51,10 @@ #include #include #include +#include #include -asmlinkage void divide_error(void); -asmlinkage void debug(void); -asmlinkage void nmi(void); -asmlinkage void int3(void); -asmlinkage void overflow(void); -asmlinkage void bounds(void); -asmlinkage void invalid_op(void); -asmlinkage void device_not_available(void); -asmlinkage void double_fault(void); -asmlinkage void coprocessor_segment_overrun(void); -asmlinkage void invalid_TSS(void); -asmlinkage void segment_not_present(void); -asmlinkage void stack_segment(void); -asmlinkage void general_protection(void); -asmlinkage void page_fault(void); -asmlinkage void coprocessor_error(void); -asmlinkage void simd_coprocessor_error(void); -asmlinkage void alignment_check(void); -asmlinkage void spurious_interrupt_bug(void); -asmlinkage void machine_check(void); - int panic_on_unrecovered_nmi; int kstack_depth_to_print = 12; static unsigned int code_bytes = 64; diff --git a/include/asm-x86/traps.h b/include/asm-x86/traps.h new file mode 100644 index 000000000000..a4b65a71bd66 --- /dev/null +++ b/include/asm-x86/traps.h @@ -0,0 +1,66 @@ +#ifndef _ASM_X86_TRAPS_H +#define _ASM_X86_TRAPS_H + +/* Common in X86_32 and X86_64 */ +asmlinkage void divide_error(void); +asmlinkage void debug(void); +asmlinkage void nmi(void); +asmlinkage void int3(void); +asmlinkage void overflow(void); +asmlinkage void bounds(void); +asmlinkage void invalid_op(void); +asmlinkage void device_not_available(void); +asmlinkage void coprocessor_segment_overrun(void); +asmlinkage void invalid_TSS(void); +asmlinkage void segment_not_present(void); +asmlinkage void stack_segment(void); +asmlinkage void general_protection(void); +asmlinkage void page_fault(void); +asmlinkage void coprocessor_error(void); +asmlinkage void simd_coprocessor_error(void); +asmlinkage void alignment_check(void); +asmlinkage void spurious_interrupt_bug(void); +#ifdef CONFIG_X86_MCE +asmlinkage void machine_check(void); +#endif /* CONFIG_X86_MCE */ + +void do_divide_error(struct pt_regs *, long); +void do_overflow(struct pt_regs *, long); +void do_bounds(struct pt_regs *, long); +void do_coprocessor_segment_overrun(struct pt_regs *, long); +void do_invalid_TSS(struct pt_regs *, long); +void do_segment_not_present(struct pt_regs *, long); +void do_stack_segment(struct pt_regs *, long); +void do_alignment_check(struct pt_regs *, long); +void do_invalid_op(struct pt_regs *, long); +void do_general_protection(struct pt_regs *, long); +void do_nmi(struct pt_regs *, long); + +extern int panic_on_unrecovered_nmi; +extern int kstack_depth_to_print; + +#ifdef CONFIG_X86_32 + +void do_iret_error(struct pt_regs *, long); +void do_int3(struct pt_regs *, long); +void do_debug(struct pt_regs *, long); +void math_error(void __user *); +void do_coprocessor_error(struct pt_regs *, long); +void do_simd_coprocessor_error(struct pt_regs *, long); +void do_spurious_interrupt_bug(struct pt_regs *, long); +unsigned long patch_espfix_desc(unsigned long, unsigned long); +asmlinkage void math_emulate(long); + +#else /* CONFIG_X86_32 */ + +asmlinkage void double_fault(void); + +asmlinkage void do_int3(struct pt_regs *, long); +asmlinkage void do_stack_segment(struct pt_regs *, long); +asmlinkage void do_debug(struct pt_regs *, unsigned long); +asmlinkage void do_coprocessor_error(struct pt_regs *); +asmlinkage void do_simd_coprocessor_error(struct pt_regs *); +asmlinkage void do_spurious_interrupt_bug(struct pt_regs *); + +#endif /* CONFIG_X86_32 */ +#endif /* _ASM_X86_TRAPS_H */ -- cgit v1.2.3 From 1fe532685a1984dc9f2603ed20bd5e630ba79709 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 18 Jul 2008 13:30:14 +0400 Subject: ARM: support generic per-device coherent dma mem Signed-off-by: Dmitry Baryshkov Cc: Jesse Barnes Cc: Russell King Signed-off-by: Ingo Molnar --- arch/arm/Kconfig | 1 + arch/arm/mm/consistent.c | 8 ++++++++ include/asm-arm/dma-mapping.h | 2 ++ 3 files changed, 11 insertions(+) (limited to 'include') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c7ad324ddf2c..ea8b9be02b60 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -16,6 +16,7 @@ config ARM select HAVE_KRETPROBES if (HAVE_KPROBES) select HAVE_FTRACE if (!XIP_KERNEL) select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE) + select HAVE_GENERIC_DMA_COHERENT help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and diff --git a/arch/arm/mm/consistent.c b/arch/arm/mm/consistent.c index 333a82a3717e..db7b3e38ef1d 100644 --- a/arch/arm/mm/consistent.c +++ b/arch/arm/mm/consistent.c @@ -274,6 +274,11 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, void * dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp) { + void *memory; + + if (dma_alloc_from_coherent(dev, size, handle, &memory)) + return memory; + if (arch_is_coherent()) { void *virt; @@ -362,6 +367,9 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr WARN_ON(irqs_disabled()); + if (dma_release_from_coherent(dev, get_order(size), cpu_addr)) + return; + if (arch_is_coherent()) { kfree(cpu_addr); return; diff --git a/include/asm-arm/dma-mapping.h b/include/asm-arm/dma-mapping.h index e99406a7bece..943f23bc99a2 100644 --- a/include/asm-arm/dma-mapping.h +++ b/include/asm-arm/dma-mapping.h @@ -7,6 +7,8 @@ #include +#include + /* * DMA-consistent mapping functions. These allocate/free a region of * uncached, unwrite-buffered mapped memory space for use with DMA -- cgit v1.2.3 From 9de90ac27d752bc0177baf2699ab483888de0743 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 18 Jul 2008 13:30:31 +0400 Subject: Sh: use generic per-device coherent dma allocator Signed-off-by: Dmitry Baryshkov Cc: Jesse Barnes Cc: Paul Mundt Signed-off-by: Ingo Molnar --- arch/sh/Kconfig | 1 + arch/sh/mm/consistent.c | 98 ++------------------------------------------ include/asm-sh/dma-mapping.h | 1 + 3 files changed, 5 insertions(+), 95 deletions(-) (limited to 'include') diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 3e7384f4619c..81894f0985aa 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -10,6 +10,7 @@ config SUPERH select EMBEDDED select HAVE_IDE select HAVE_OPROFILE + select HAVE_GENERIC_DMA_COHERENT help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index d3c33fc5b1c2..3095d9581475 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -27,21 +27,10 @@ void *dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp) { void *ret, *ret_nocache; - struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; int order = get_order(size); - if (mem) { - int page = bitmap_find_free_region(mem->bitmap, mem->size, - order); - if (page >= 0) { - *dma_handle = mem->device_base + (page << PAGE_SHIFT); - ret = mem->virt_base + (page << PAGE_SHIFT); - memset(ret, 0, size); - return ret; - } - if (mem->flags & DMA_MEMORY_EXCLUSIVE) - return NULL; - } + if (dma_alloc_from_coherent(dev, size, dma_handle, &ret)) + return ret; ret = (void *)__get_free_pages(gfp, order); if (!ret) @@ -71,11 +60,7 @@ void dma_free_coherent(struct device *dev, size_t size, struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; int order = get_order(size); - if (mem && vaddr >= mem->virt_base && vaddr < (mem->virt_base + (mem->size << PAGE_SHIFT))) { - int page = (vaddr - mem->virt_base) >> PAGE_SHIFT; - - bitmap_release_region(mem->bitmap, page, order); - } else { + if (!dma_release_from_coherent(dev, order, vaddr)) { WARN_ON(irqs_disabled()); /* for portability */ BUG_ON(mem && mem->flags & DMA_MEMORY_EXCLUSIVE); free_pages((unsigned long)phys_to_virt(dma_handle), order); @@ -84,83 +69,6 @@ void dma_free_coherent(struct device *dev, size_t size, } EXPORT_SYMBOL(dma_free_coherent); -int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, - dma_addr_t device_addr, size_t size, int flags) -{ - void __iomem *mem_base = NULL; - int pages = size >> PAGE_SHIFT; - int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long); - - if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0) - goto out; - if (!size) - goto out; - if (dev->dma_mem) - goto out; - - /* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */ - - mem_base = ioremap_nocache(bus_addr, size); - if (!mem_base) - goto out; - - dev->dma_mem = kmalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL); - if (!dev->dma_mem) - goto out; - dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL); - if (!dev->dma_mem->bitmap) - goto free1_out; - - dev->dma_mem->virt_base = mem_base; - dev->dma_mem->device_base = device_addr; - dev->dma_mem->size = pages; - dev->dma_mem->flags = flags; - - if (flags & DMA_MEMORY_MAP) - return DMA_MEMORY_MAP; - - return DMA_MEMORY_IO; - - free1_out: - kfree(dev->dma_mem); - out: - if (mem_base) - iounmap(mem_base); - return 0; -} -EXPORT_SYMBOL(dma_declare_coherent_memory); - -void dma_release_declared_memory(struct device *dev) -{ - struct dma_coherent_mem *mem = dev->dma_mem; - - if (!mem) - return; - dev->dma_mem = NULL; - iounmap(mem->virt_base); - kfree(mem->bitmap); - kfree(mem); -} -EXPORT_SYMBOL(dma_release_declared_memory); - -void *dma_mark_declared_memory_occupied(struct device *dev, - dma_addr_t device_addr, size_t size) -{ - struct dma_coherent_mem *mem = dev->dma_mem; - int pages = (size + (device_addr & ~PAGE_MASK) + PAGE_SIZE - 1) >> PAGE_SHIFT; - int pos, err; - - if (!mem) - return ERR_PTR(-EINVAL); - - pos = (device_addr - mem->device_base) >> PAGE_SHIFT; - err = bitmap_allocate_region(mem->bitmap, pos, get_order(pages)); - if (err != 0) - return ERR_PTR(err); - return mem->virt_base + (pos << PAGE_SHIFT); -} -EXPORT_SYMBOL(dma_mark_declared_memory_occupied); - void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h index 22cc419389fe..5956c5d568b7 100644 --- a/include/asm-sh/dma-mapping.h +++ b/include/asm-sh/dma-mapping.h @@ -5,6 +5,7 @@ #include #include #include +#include extern struct bus_type pci_bus_type; -- cgit v1.2.3 From 65c011845316d3c1381f478ca0d8265c43b3b039 Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Tue, 15 Jul 2008 14:14:30 -0700 Subject: cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr * This patch replaces the dangerous lvalue version of cpumask_of_cpu with new cpumask_of_cpu_ptr macros. These are patterned after the node_to_cpumask_ptr macros. In general terms, if there is a cpumask_of_cpu_map[] then a pointer to the cpumask_of_cpu_map[cpu] entry is used. The cpumask_of_cpu_map is provided when there is a large NR_CPUS count, reducing greatly the amount of code generated and stack space used for cpumask_of_cpu(). The pointer to the cpumask_t value is needed for calling set_cpus_allowed_ptr() to reduce the amount of stack space needed to pass the cpumask_t value. If there isn't a cpumask_of_cpu_map[], then a temporary variable is declared and filled in with value from cpumask_of_cpu(cpu) as well as a pointer variable pointing to this temporary variable. Afterwards, the pointer is used to reference the cpumask value. The compiler will optimize out the extra dereference through the pointer as well as the stack space used for the pointer, resulting in identical code. A good example of the orthogonal usages is in net/sunrpc/svc.c: case SVC_POOL_PERCPU: { unsigned int cpu = m->pool_to[pidx]; cpumask_of_cpu_ptr(cpumask, cpu); *oldmask = current->cpus_allowed; set_cpus_allowed_ptr(current, cpumask); return 1; } case SVC_POOL_PERNODE: { unsigned int node = m->pool_to[pidx]; node_to_cpumask_ptr(nodecpumask, node); *oldmask = current->cpus_allowed; set_cpus_allowed_ptr(current, nodecpumask); return 1; } Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/cstate.c | 3 ++- arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 10 +++++--- arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 15 +++++++---- arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c | 9 ++++--- arch/x86/kernel/cpu/cpufreq/speedstep-ich.c | 3 ++- arch/x86/kernel/cpu/intel_cacheinfo.c | 3 ++- arch/x86/kernel/microcode.c | 13 +++++++--- arch/x86/kernel/reboot.c | 14 +++++++---- drivers/acpi/processor_throttling.c | 11 +++++--- drivers/firmware/dcdbas.c | 3 ++- include/linux/cpumask.h | 32 ++++++++++++++++++++---- kernel/stop_machine.c | 3 ++- kernel/trace/trace_sysprof.c | 4 ++- net/sunrpc/svc.c | 3 ++- 14 files changed, 91 insertions(+), 35 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index c2502eb9aa83..9220cf46aa10 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -73,6 +73,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu, struct cpuinfo_x86 *c = &cpu_data(cpu); cpumask_t saved_mask; + cpumask_of_cpu_ptr(new_mask, cpu); int retval; unsigned int eax, ebx, ecx, edx; unsigned int edx_part; @@ -91,7 +92,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu, /* Make sure we are running on right CPU */ saved_mask = current->cpus_allowed; - retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + retval = set_cpus_allowed_ptr(current, new_mask); if (retval) return -1; diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c index dd097b835839..ff2fff56f0a8 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -200,10 +200,12 @@ static void drv_read(struct drv_cmd *cmd) static void drv_write(struct drv_cmd *cmd) { cpumask_t saved_mask = current->cpus_allowed; + cpumask_of_cpu_ptr_declare(cpu_mask); unsigned int i; for_each_cpu_mask_nr(i, cmd->mask) { - set_cpus_allowed_ptr(current, &cpumask_of_cpu(i)); + cpumask_of_cpu_ptr_next(cpu_mask, i); + set_cpus_allowed_ptr(current, cpu_mask); do_drv_write(cmd); } @@ -267,11 +269,12 @@ static unsigned int get_measured_perf(unsigned int cpu) } aperf_cur, mperf_cur; cpumask_t saved_mask; + cpumask_of_cpu_ptr(cpu_mask, cpu); unsigned int perf_percent; unsigned int retval; saved_mask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, cpu_mask); if (get_cpu() != cpu) { /* We were not able to run on requested processor */ put_cpu(); @@ -337,6 +340,7 @@ static unsigned int get_measured_perf(unsigned int cpu) static unsigned int get_cur_freq_on_cpu(unsigned int cpu) { + cpumask_of_cpu_ptr(cpu_mask, cpu); struct acpi_cpufreq_data *data = per_cpu(drv_data, cpu); unsigned int freq; unsigned int cached_freq; @@ -349,7 +353,7 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu) } cached_freq = data->freq_table[data->acpi_data->state].frequency; - freq = extract_freq(get_cur_val(&cpumask_of_cpu(cpu)), data); + freq = extract_freq(get_cur_val(cpu_mask), data); if (freq != cached_freq) { /* * The dreaded BIOS frequency change behind our back. diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index c45ca6d4dce1..53c7b6936973 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -479,11 +479,12 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvi static int check_supported_cpu(unsigned int cpu) { cpumask_t oldmask; + cpumask_of_cpu_ptr(cpu_mask, cpu); u32 eax, ebx, ecx, edx; unsigned int rc = 0; oldmask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, cpu_mask); if (smp_processor_id() != cpu) { printk(KERN_ERR PFX "limiting to cpu %u failed\n", cpu); @@ -1016,6 +1017,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsigned relation) { cpumask_t oldmask; + cpumask_of_cpu_ptr(cpu_mask, pol->cpu); struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu); u32 checkfid; u32 checkvid; @@ -1030,7 +1032,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi /* only run on specific CPU from here on */ oldmask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu)); + set_cpus_allowed_ptr(current, cpu_mask); if (smp_processor_id() != pol->cpu) { printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu); @@ -1105,6 +1107,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) { struct powernow_k8_data *data; cpumask_t oldmask; + cpumask_of_cpu_ptr_declare(newmask); int rc; if (!cpu_online(pol->cpu)) @@ -1156,7 +1159,8 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) /* only run on specific CPU from here on */ oldmask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu)); + cpumask_of_cpu_ptr_next(newmask, pol->cpu); + set_cpus_allowed_ptr(current, newmask); if (smp_processor_id() != pol->cpu) { printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu); @@ -1178,7 +1182,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) set_cpus_allowed_ptr(current, &oldmask); if (cpu_family == CPU_HW_PSTATE) - pol->cpus = cpumask_of_cpu(pol->cpu); + pol->cpus = *newmask; else pol->cpus = per_cpu(cpu_core_map, pol->cpu); data->available_cores = &(pol->cpus); @@ -1244,6 +1248,7 @@ static unsigned int powernowk8_get (unsigned int cpu) { struct powernow_k8_data *data; cpumask_t oldmask = current->cpus_allowed; + cpumask_of_cpu_ptr(newmask, cpu); unsigned int khz = 0; unsigned int first; @@ -1253,7 +1258,7 @@ static unsigned int powernowk8_get (unsigned int cpu) if (!data) return -EINVAL; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, newmask); if (smp_processor_id() != cpu) { printk(KERN_ERR PFX "limiting to CPU %d failed in powernowk8_get\n", cpu); diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c index 8b0dd6f2a1ac..fd561bb26c60 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c @@ -313,9 +313,10 @@ static unsigned int get_cur_freq(unsigned int cpu) unsigned l, h; unsigned clock_freq; cpumask_t saved_mask; + cpumask_of_cpu_ptr(new_mask, cpu); saved_mask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, new_mask); if (smp_processor_id() != cpu) return 0; @@ -554,9 +555,11 @@ static int centrino_target (struct cpufreq_policy *policy, */ if (!cpus_empty(covered_cpus)) { + cpumask_of_cpu_ptr_declare(new_mask); + for_each_cpu_mask_nr(j, covered_cpus) { - set_cpus_allowed_ptr(current, - &cpumask_of_cpu(j)); + cpumask_of_cpu_ptr_next(new_mask, j); + set_cpus_allowed_ptr(current, new_mask); wrmsr(MSR_IA32_PERF_CTL, oldmsr, h); } } diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c index 191f7263c61d..2f3728dc24f6 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c @@ -244,7 +244,8 @@ static unsigned int _speedstep_get(const cpumask_t *cpus) static unsigned int speedstep_get(unsigned int cpu) { - return _speedstep_get(&cpumask_of_cpu(cpu)); + cpumask_of_cpu_ptr(newmask, cpu); + return _speedstep_get(newmask); } /** diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index a7b0f8f1736b..e4b8d189d7ed 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -516,6 +516,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu) unsigned long j; int retval; cpumask_t oldmask; + cpumask_of_cpu_ptr(newmask, cpu); if (num_cache_leaves == 0) return -ENOENT; @@ -526,7 +527,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu) return -ENOMEM; oldmask = current->cpus_allowed; - retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + retval = set_cpus_allowed_ptr(current, newmask); if (retval) goto out; diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c index 56b933119a04..58520169e35d 100644 --- a/arch/x86/kernel/microcode.c +++ b/arch/x86/kernel/microcode.c @@ -388,6 +388,7 @@ static int do_microcode_update (void) void *new_mc = NULL; int cpu; cpumask_t old; + cpumask_of_cpu_ptr_declare(newmask); old = current->cpus_allowed; @@ -404,7 +405,8 @@ static int do_microcode_update (void) if (!uci->valid) continue; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + cpumask_of_cpu_ptr_next(newmask, cpu); + set_cpus_allowed_ptr(current, newmask); error = get_maching_microcode(new_mc, cpu); if (error < 0) goto out; @@ -574,6 +576,7 @@ static int apply_microcode_check_cpu(int cpu) struct cpuinfo_x86 *c = &cpu_data(cpu); struct ucode_cpu_info *uci = ucode_cpu_info + cpu; cpumask_t old; + cpumask_of_cpu_ptr(newmask, cpu); unsigned int val[2]; int err = 0; @@ -582,7 +585,7 @@ static int apply_microcode_check_cpu(int cpu) return 0; old = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, newmask); /* Check if the microcode we have in memory matches the CPU */ if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 || @@ -620,11 +623,12 @@ static int apply_microcode_check_cpu(int cpu) static void microcode_init_cpu(int cpu, int resume) { cpumask_t old; + cpumask_of_cpu_ptr(newmask, cpu); struct ucode_cpu_info *uci = ucode_cpu_info + cpu; old = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, newmask); mutex_lock(µcode_mutex); collect_cpu_info(cpu); if (uci->valid && system_state == SYSTEM_RUNNING && !resume) @@ -656,11 +660,12 @@ static ssize_t reload_store(struct sys_device *dev, const char *buf, size_t sz) return -EINVAL; if (val == 1) { cpumask_t old; + cpumask_of_cpu_ptr(newmask, cpu); old = current->cpus_allowed; get_online_cpus(); - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, newmask); mutex_lock(µcode_mutex); if (uci->valid) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index f8a62160e151..214bbdfc851e 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -403,24 +403,28 @@ void native_machine_shutdown(void) { /* Stop the cpus and apics */ #ifdef CONFIG_SMP - int reboot_cpu_id; /* The boot cpu is always logical cpu 0 */ - reboot_cpu_id = 0; + int reboot_cpu_id = 0; + cpumask_of_cpu_ptr(newmask, reboot_cpu_id); #ifdef CONFIG_X86_32 /* See if there has been given a command line override */ if ((reboot_cpu != -1) && (reboot_cpu < NR_CPUS) && - cpu_online(reboot_cpu)) + cpu_online(reboot_cpu)) { reboot_cpu_id = reboot_cpu; + cpumask_of_cpu_ptr_next(newmask, reboot_cpu_id); + } #endif /* Make certain the cpu I'm about to reboot on is online */ - if (!cpu_online(reboot_cpu_id)) + if (!cpu_online(reboot_cpu_id)) { reboot_cpu_id = smp_processor_id(); + cpumask_of_cpu_ptr_next(newmask, reboot_cpu_id); + } /* Make certain I only run on the appropriate processor */ - set_cpus_allowed_ptr(current, &cpumask_of_cpu(reboot_cpu_id)); + set_cpus_allowed_ptr(current, newmask); /* O.K Now that I'm on the appropriate processor, * stop all of the others. diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index a56fc6c4394b..a2c3f9cfa549 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -827,6 +827,7 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) static int acpi_processor_get_throttling(struct acpi_processor *pr) { cpumask_t saved_mask; + cpumask_of_cpu_ptr_declare(new_mask); int ret; if (!pr) @@ -838,7 +839,8 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr) * Migrate task to the cpu pointed by pr. */ saved_mask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(pr->id)); + cpumask_of_cpu_ptr_next(new_mask, pr->id); + set_cpus_allowed_ptr(current, new_mask); ret = pr->throttling.acpi_processor_get_throttling(pr); /* restore the previous state */ set_cpus_allowed_ptr(current, &saved_mask); @@ -987,6 +989,7 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, int acpi_processor_set_throttling(struct acpi_processor *pr, int state) { cpumask_t saved_mask; + cpumask_of_cpu_ptr_declare(new_mask); int ret = 0; unsigned int i; struct acpi_processor *match_pr; @@ -1025,7 +1028,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) * it can be called only for the cpu pointed by pr. */ if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) { - set_cpus_allowed_ptr(current, &cpumask_of_cpu(pr->id)); + cpumask_of_cpu_ptr_next(new_mask, pr->id); + set_cpus_allowed_ptr(current, new_mask); ret = p_throttling->acpi_processor_set_throttling(pr, t_state.target_state); } else { @@ -1056,7 +1060,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) continue; } t_state.cpu = i; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(i)); + cpumask_of_cpu_ptr_next(new_mask, i); + set_cpus_allowed_ptr(current, new_mask); ret = match_pr->throttling. acpi_processor_set_throttling( match_pr, t_state.target_state); diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c index 25918f7dfd0f..0b624e927a6f 100644 --- a/drivers/firmware/dcdbas.c +++ b/drivers/firmware/dcdbas.c @@ -254,6 +254,7 @@ static ssize_t host_control_on_shutdown_store(struct device *dev, static int smi_request(struct smi_cmd *smi_cmd) { cpumask_t old_mask; + cpumask_of_cpu_ptr(new_mask, 0); int ret = 0; if (smi_cmd->magic != SMI_CMD_MAGIC) { @@ -264,7 +265,7 @@ static int smi_request(struct smi_cmd *smi_cmd) /* SMI requires CPU 0 */ old_mask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(0)); + set_cpus_allowed_ptr(current, new_mask); if (smp_processor_id() != 0) { dev_dbg(&dcdbas_pdev->dev, "%s: failed to get CPU 0\n", __func__); diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 80226e776143..2dbd9a287e77 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -62,6 +62,15 @@ * int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids * * cpumask_t cpumask_of_cpu(cpu) Return cpumask with bit 'cpu' set + *ifdef CONFIG_HAS_CPUMASK_OF_CPU + * cpumask_of_cpu_ptr_declare(v) Declares cpumask_t *v + * cpumask_of_cpu_ptr_next(v, cpu) Sets v = &cpumask_of_cpu_map[cpu] + * cpumask_of_cpu_ptr(v, cpu) Combines above two operations + *else + * cpumask_of_cpu_ptr_declare(v) Declares cpumask_t _v and *v = &_v + * cpumask_of_cpu_ptr_next(v, cpu) Sets _v = cpumask_of_cpu(cpu) + * cpumask_of_cpu_ptr(v, cpu) Combines above two operations + *endif * CPU_MASK_ALL Initializer - all bits set * CPU_MASK_NONE Initializer - no bits set * unsigned long *cpus_addr(mask) Array of unsigned long's in mask @@ -236,11 +245,16 @@ static inline void __cpus_shift_left(cpumask_t *dstp, #ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP extern cpumask_t *cpumask_of_cpu_map; -#define cpumask_of_cpu(cpu) (cpumask_of_cpu_map[cpu]) - +#define cpumask_of_cpu(cpu) (cpumask_of_cpu_map[cpu]) +#define cpumask_of_cpu_ptr(v, cpu) \ + const cpumask_t *v = &cpumask_of_cpu(cpu) +#define cpumask_of_cpu_ptr_declare(v) \ + const cpumask_t *v +#define cpumask_of_cpu_ptr_next(v, cpu) \ + v = &cpumask_of_cpu(cpu) #else #define cpumask_of_cpu(cpu) \ -(*({ \ +({ \ typeof(_unused_cpumask_arg_) m; \ if (sizeof(m) == sizeof(unsigned long)) { \ m.bits[0] = 1UL<<(cpu); \ @@ -248,8 +262,16 @@ extern cpumask_t *cpumask_of_cpu_map; cpus_clear(m); \ cpu_set((cpu), m); \ } \ - &m; \ -})) + m; \ +}) +#define cpumask_of_cpu_ptr(v, cpu) \ + cpumask_t _##v = cpumask_of_cpu(cpu); \ + const cpumask_t *v = &_##v +#define cpumask_of_cpu_ptr_declare(v) \ + cpumask_t _##v; \ + const cpumask_t *v = &_##v +#define cpumask_of_cpu_ptr_next(v, cpu) \ + _##v = cpumask_of_cpu(cpu) #endif #define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS) diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index ba9b2054ecbd..738b411ff2d3 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -33,8 +33,9 @@ static int stopmachine(void *cpu) { int irqs_disabled = 0; int prepared = 0; + cpumask_of_cpu_ptr(cpumask, (int)(long)cpu); - set_cpus_allowed_ptr(current, &cpumask_of_cpu((int)(long)cpu)); + set_cpus_allowed_ptr(current, cpumask); /* Ack: we are alive */ smp_mb(); /* Theoretically the ack = 0 might not be on this CPU yet. */ diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c index 2301e1e7c606..63528086337c 100644 --- a/kernel/trace/trace_sysprof.c +++ b/kernel/trace/trace_sysprof.c @@ -213,7 +213,9 @@ static void start_stack_timers(void) int cpu; for_each_online_cpu(cpu) { - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + cpumask_of_cpu_ptr(new_mask, cpu); + + set_cpus_allowed_ptr(current, new_mask); start_stack_timer(cpu); } set_cpus_allowed_ptr(current, &saved_mask); diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index d43cf8ddff67..083d12688134 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -314,9 +314,10 @@ svc_pool_map_set_cpumask(unsigned int pidx, cpumask_t *oldmask) case SVC_POOL_PERCPU: { unsigned int cpu = m->pool_to[pidx]; + cpumask_of_cpu_ptr(cpumask, cpu); *oldmask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu)); + set_cpus_allowed_ptr(current, cpumask); return 1; } case SVC_POOL_PERNODE: -- cgit v1.2.3 From 77586c2bdad0798cb24e35de5a878e7c6b200574 Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Tue, 15 Jul 2008 14:14:36 -0700 Subject: cpumask: Provide a generic set of CPUMASK_ALLOC macros * Provide a generic set of CPUMASK_ALLOC macros patterned after the SCHED_CPUMASK_ALLOC macros. This is used where multiple cpumask_t variables are declared on the stack to reduce the amount of stack space required. Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar --- include/linux/cpumask.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 2dbd9a287e77..72f9c32c12b0 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -75,6 +75,17 @@ * CPU_MASK_NONE Initializer - no bits set * unsigned long *cpus_addr(mask) Array of unsigned long's in mask * + *if NR_CPUS > BITS_PER_LONG + * CPUMASK_ALLOC(m) Declares and allocates struct m *m = + * (struct m *)kmalloc(sizeof(*m), ...) + * CPUMASK_FREE(m) Macro for kfree(v) + *else + * CPUMASK_ALLOC(m) Declares struct m _m, *m = &_m + * CPUMASK_FREE(m) Nop + *endif + * CPUMASK_VAR(v, m) Declares cpumask_t *v = + * m + offset(struct m, v) + * * int cpumask_scnprintf(buf, len, mask) Format cpumask for printing * int cpumask_parse_user(ubuf, ulen, mask) Parse ascii string as cpumask * int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing @@ -311,6 +322,16 @@ extern cpumask_t cpu_mask_all; #define cpus_addr(src) ((src).bits) +#if NR_CPUS > BITS_PER_LONG +#define CPUMASK_ALLOC(m) struct m *m = kmalloc(sizeof(*m), GFP_KERNEL) +#define CPUMASK_FREE(m) kfree(m) +#else +#define CPUMASK_ALLOC(m) struct allmasks _m, *m = &_m +#define CPUMASK_FREE(m) +#endif +#define CPUMASK_VAR(v, m) cpumask_t *v = (cpumask_t *) \ + ((unsigned long)(m) + offsetof(struct m, v)) + #define cpumask_scnprintf(buf, len, src) \ __cpumask_scnprintf((buf), (len), &(src), NR_CPUS) static inline int __cpumask_scnprintf(char *buf, int len, -- cgit v1.2.3 From 08e1a13e7d14ba5d6a22bf4b8c6e11128d3bcdfe Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 18 Jul 2008 13:44:16 +0100 Subject: x86: reduce forbid_dac's visibility It's not used anywhere outside its declaring file. Signed-off-by: Jan Beulich Signed-off-by: H. Peter Anvin --- arch/x86/kernel/pci-dma.c | 3 +-- include/asm-x86/dma-mapping.h | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 8467ec2320f1..702714bd1511 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -9,8 +9,7 @@ #include #include -int forbid_dac __read_mostly; -EXPORT_SYMBOL(forbid_dac); +static int forbid_dac __read_mostly; const struct dma_mapping_ops *dma_ops; EXPORT_SYMBOL(dma_ops); diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h index a1a4dc7fe6ec..c2ddd3d1b883 100644 --- a/include/asm-x86/dma-mapping.h +++ b/include/asm-x86/dma-mapping.h @@ -14,7 +14,6 @@ extern dma_addr_t bad_dma_address; extern int iommu_merge; extern struct device fallback_dev; extern int panic_on_overflow; -extern int forbid_dac; extern int force_iommu; struct dma_mapping_ops { -- cgit v1.2.3 From 08ad8afaa0f7343e9c64eec5dbbb178e390e03a2 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 18 Jul 2008 13:45:20 +0100 Subject: x86: reduce force_mwait visibility It's not used anywhere outside its single referencing file. Signed-off-by: Jan Beulich Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/amd.c | 2 -- arch/x86/kernel/process.c | 1 + include/asm-x86/processor.h | 2 -- 3 files changed, 1 insertion(+), 4 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 81a07ca65d44..cae9cabc3031 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -24,8 +24,6 @@ extern void vide(void); __asm__(".align 4\nvide: ret"); -int force_mwait __cpuinitdata; - static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) { if (cpuid_eax(0x80000000) >= 0x80000007) { diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 158bd6a16f6a..9f94bb1c8117 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -199,6 +199,7 @@ static void poll_idle(void) * * idle=mwait overrides this decision and forces the usage of mwait. */ +static int __cpuinitdata force_mwait; #define MWAIT_INFO 0x05 #define MWAIT_ECX_EXTENDED_INFO 0x01 diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h index 55402d2ab938..15cb82a44e89 100644 --- a/include/asm-x86/processor.h +++ b/include/asm-x86/processor.h @@ -722,8 +722,6 @@ static inline void __sti_mwait(unsigned long eax, unsigned long ecx) extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx); -extern int force_mwait; - extern void select_idle_routine(const struct cpuinfo_x86 *c); extern unsigned long boot_option_idle_override; -- cgit v1.2.3 From 48fe4a76e27dc64b47f3d2a2af2b6bbf2b2f5b6b Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 18 Jul 2008 13:29:00 +0100 Subject: x86: i386: reduce boot fixmap space As 256 entries are needed, aligning to a 256-entry boundary is sufficient and still guarantees the single pte table requirement. Signed-off-by: Jan Beulich Signed-off-by: H. Peter Anvin --- include/asm-x86/fixmap_32.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86/fixmap_32.h b/include/asm-x86/fixmap_32.h index aae2f0501a40..f1ac2b2167d7 100644 --- a/include/asm-x86/fixmap_32.h +++ b/include/asm-x86/fixmap_32.h @@ -90,13 +90,13 @@ enum fixed_addresses { * 256 temporary boot-time mappings, used by early_ioremap(), * before ioremap() is functional. * - * We round it up to the next 512 pages boundary so that we + * We round it up to the next 256 pages boundary so that we * can have a single pgd entry and a single pte table: */ #define NR_FIX_BTMAPS 64 #define FIX_BTMAPS_NESTING 4 - FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 512 - - (__end_of_permanent_fixed_addresses & 511), + FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 256 - + (__end_of_permanent_fixed_addresses & 255), FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1, FIX_WP_TEST, #ifdef CONFIG_ACPI -- cgit v1.2.3 From ae79cdaacb5599781f8bb49f4bdd5723029669cf Mon Sep 17 00:00:00 2001 From: "venkatesh.pallipadi@intel.com" Date: Fri, 18 Jul 2008 16:08:13 -0700 Subject: x86: Add a arch directory for x86 under debugfs Add a directory for x86 arch under debugfs. Can be used to accumulate all x86 specific debugfs files. Signed-off-by: Venkatesh Pallipadi Signed-off-by: H. Peter Anvin --- arch/x86/kernel/kdebugfs.c | 8 ++++++++ include/linux/debugfs.h | 2 ++ 2 files changed, 10 insertions(+) (limited to 'include') diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c index c03205991718..f2d43bc75514 100644 --- a/arch/x86/kernel/kdebugfs.c +++ b/arch/x86/kernel/kdebugfs.c @@ -12,9 +12,13 @@ #include #include #include +#include #include +struct dentry *arch_debugfs_dir; +EXPORT_SYMBOL(arch_debugfs_dir); + #ifdef CONFIG_DEBUG_BOOT_PARAMS struct setup_data_node { u64 paddr; @@ -209,6 +213,10 @@ static int __init arch_kdebugfs_init(void) { int error = 0; + arch_debugfs_dir = debugfs_create_dir("x86", NULL); + if (!arch_debugfs_dir) + return -ENOMEM; + #ifdef CONFIG_DEBUG_BOOT_PARAMS error = boot_params_kdebugfs_init(); #endif diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 7266124361b4..32755cdf68db 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -26,6 +26,8 @@ struct debugfs_blob_wrapper { unsigned long size; }; +extern struct dentry *arch_debugfs_dir; + #if defined(CONFIG_DEBUG_FS) /* declared over in file.c */ -- cgit v1.2.3 From 262c3825a9f3eb0f4f30ebb4b1ee57397bcb3ffc Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Sat, 19 Jul 2008 15:42:41 +0800 Subject: Blackfin arch: Extend sram malloc to handle L2 SRAM. Extend system call to alloc L2 SRAM in application. Automatically move following sections to L2 SRAM: 1. kernel built-in l2 attribute section 2. kernel module l2 attribute section 3. elf-fdpic application l2 attribute section Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- arch/blackfin/kernel/module.c | 74 ++++++++++++---- arch/blackfin/kernel/setup.c | 10 +++ arch/blackfin/kernel/vmlinux.lds.S | 40 +++++++-- arch/blackfin/mm/blackfin_sram.c | 170 ++++++++++++++++++++++++++++++------- include/asm-blackfin/bfin-global.h | 8 +- include/asm-blackfin/elf.h | 2 + include/asm-blackfin/module.h | 5 +- 7 files changed, 253 insertions(+), 56 deletions(-) (limited to 'include') diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c index 14a42848f37f..e1bebc80a5bf 100644 --- a/arch/blackfin/kernel/module.c +++ b/arch/blackfin/kernel/module.c @@ -173,7 +173,7 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, for (s = sechdrs; s < sechdrs_end; ++s) { if ((strcmp(".l1.text", secstrings + s->sh_name) == 0) || ((strcmp(".text", secstrings + s->sh_name) == 0) && - (hdr->e_flags & FLG_CODE_IN_L1) && (s->sh_size > 0))) { + (hdr->e_flags & EF_BFIN_CODE_IN_L1) && (s->sh_size > 0))) { dest = l1_inst_sram_alloc(s->sh_size); mod->arch.text_l1 = dest; if (dest == NULL) { @@ -188,7 +188,7 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, } if ((strcmp(".l1.data", secstrings + s->sh_name) == 0) || ((strcmp(".data", secstrings + s->sh_name) == 0) && - (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { + (hdr->e_flags & EF_BFIN_DATA_IN_L1) && (s->sh_size > 0))) { dest = l1_data_sram_alloc(s->sh_size); mod->arch.data_a_l1 = dest; if (dest == NULL) { @@ -203,7 +203,7 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, } if (strcmp(".l1.bss", secstrings + s->sh_name) == 0 || ((strcmp(".bss", secstrings + s->sh_name) == 0) && - (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { + (hdr->e_flags & EF_BFIN_DATA_IN_L1) && (s->sh_size > 0))) { dest = l1_data_sram_alloc(s->sh_size); mod->arch.bss_a_l1 = dest; if (dest == NULL) { @@ -242,6 +242,51 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, s->sh_flags &= ~SHF_ALLOC; s->sh_addr = (unsigned long)dest; } + if ((strcmp(".l2.text", secstrings + s->sh_name) == 0) || + ((strcmp(".text", secstrings + s->sh_name) == 0) && + (hdr->e_flags & EF_BFIN_CODE_IN_L2) && (s->sh_size > 0))) { + dest = l2_sram_alloc(s->sh_size); + mod->arch.text_l2 = dest; + if (dest == NULL) { + printk(KERN_ERR + "module %s: L2 SRAM allocation failed\n", + mod->name); + return -1; + } + memcpy(dest, (void *)s->sh_addr, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } + if ((strcmp(".l2.data", secstrings + s->sh_name) == 0) || + ((strcmp(".data", secstrings + s->sh_name) == 0) && + (hdr->e_flags & EF_BFIN_DATA_IN_L2) && (s->sh_size > 0))) { + dest = l2_sram_alloc(s->sh_size); + mod->arch.data_l2 = dest; + if (dest == NULL) { + printk(KERN_ERR + "module %s: L2 SRAM allocation failed\n", + mod->name); + return -1; + } + memcpy(dest, (void *)s->sh_addr, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } + if (strcmp(".l2.bss", secstrings + s->sh_name) == 0 || + ((strcmp(".bss", secstrings + s->sh_name) == 0) && + (hdr->e_flags & EF_BFIN_DATA_IN_L2) && (s->sh_size > 0))) { + dest = l2_sram_alloc(s->sh_size); + mod->arch.bss_l2 = dest; + if (dest == NULL) { + printk(KERN_ERR + "module %s: L2 SRAM allocation failed\n", + mod->name); + return -1; + } + memset(dest, 0, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } } return 0; } @@ -411,9 +456,10 @@ module_finalize(const Elf_Ehdr * hdr, continue; if ((sechdrs[i].sh_type == SHT_RELA) && - ((strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0) || + ((strcmp(".rela.l2.text", secstrings + sechdrs[i].sh_name) == 0) || + (strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0) || ((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) && - (hdr->e_flags & FLG_CODE_IN_L1)))) { + (hdr->e_flags & (EF_BFIN_CODE_IN_L1|EF_BFIN_CODE_IN_L2))))) { apply_relocate_add((Elf_Shdr *) sechdrs, strtab, symindex, i, mod); } @@ -423,14 +469,12 @@ module_finalize(const Elf_Ehdr * hdr, void module_arch_cleanup(struct module *mod) { - if (mod->arch.text_l1) - l1_inst_sram_free((void *)mod->arch.text_l1); - if (mod->arch.data_a_l1) - l1_data_sram_free((void *)mod->arch.data_a_l1); - if (mod->arch.bss_a_l1) - l1_data_sram_free((void *)mod->arch.bss_a_l1); - if (mod->arch.data_b_l1) - l1_data_B_sram_free((void *)mod->arch.data_b_l1); - if (mod->arch.bss_b_l1) - l1_data_B_sram_free((void *)mod->arch.bss_b_l1); + l1_inst_sram_free(mod->arch.text_l1); + l1_data_A_sram_free(mod->arch.data_a_l1); + l1_data_A_sram_free(mod->arch.bss_a_l1); + l1_data_B_sram_free(mod->arch.data_b_l1); + l1_data_B_sram_free(mod->arch.bss_b_l1); + l2_sram_free(mod->arch.text_l2); + l2_sram_free(mod->arch.data_l2); + l2_sram_free(mod->arch.bss_l2); } diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 861a1db74df8..8671d1db1f99 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -104,6 +104,7 @@ void __init bf53x_relocate_l1_mem(void) unsigned long l1_code_length; unsigned long l1_data_a_length; unsigned long l1_data_b_length; + unsigned long l2_length; l1_code_length = _etext_l1 - _stext_l1; if (l1_code_length > L1_CODE_LENGTH) @@ -129,6 +130,15 @@ void __init bf53x_relocate_l1_mem(void) /* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */ dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length + l1_data_a_length, l1_data_b_length); + +#ifdef L2_LENGTH + l2_length = _ebss_l2 - _stext_l2; + if (l2_length > L2_LENGTH) + panic("L2 SRAM Overflow\n"); + + /* Copy _stext_l2 to _edata_l2 to L2 SRAM */ + dma_memcpy(_stext_l2, _l2_lma_start, l2_length); +#endif } /* add_memory_region to memmap */ diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S index 3ecc64cab3be..0896e38d6108 100644 --- a/arch/blackfin/kernel/vmlinux.lds.S +++ b/arch/blackfin/kernel/vmlinux.lds.S @@ -101,6 +101,11 @@ SECTIONS #if !L1_DATA_B_LENGTH *(.l1.data.B) #endif +#ifndef L2_LENGTH + . = ALIGN(32); + *(.data_l2.cacheline_aligned) + *(.l2.data) +#endif DATA_DATA *(.data.*) @@ -182,13 +187,12 @@ SECTIONS *(.l1.data) __edata_l1 = .; - . = ALIGN(4); - __sbss_l1 = .; - *(.l1.bss) - . = ALIGN(32); *(.data_l1.cacheline_aligned) + . = ALIGN(4); + __sbss_l1 = .; + *(.l1.bss) . = ALIGN(4); __ebss_l1 = .; } @@ -203,11 +207,37 @@ SECTIONS . = ALIGN(4); __sbss_b_l1 = .; *(.l1.bss.B) - . = ALIGN(4); __ebss_b_l1 = .; } +#ifdef L2_LENGTH + __l2_lma_start = .; + + .text_data_l2 L2_START : AT(LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1)) + { + . = ALIGN(4); + __stext_l2 = .; + *(.l1.text) + . = ALIGN(4); + __etext_l2 = .; + + . = ALIGN(4); + __sdata_l2 = .; + *(.l1.data) + __edata_l2 = .; + + . = ALIGN(32); + *(.data_l2.cacheline_aligned) + + . = ALIGN(4); + __sbss_l2 = .; + *(.l1.bss) + . = ALIGN(4); + __ebss_l2 = .; + } +#endif + /* Force trailing alignment of our init section so that when we * free our init memory, we don't leave behind a partial page. */ diff --git a/arch/blackfin/mm/blackfin_sram.c b/arch/blackfin/mm/blackfin_sram.c index b58cf196d7cc..5af3c31c9365 100644 --- a/arch/blackfin/mm/blackfin_sram.c +++ b/arch/blackfin/mm/blackfin_sram.c @@ -42,6 +42,7 @@ #include "blackfin_sram.h" static spinlock_t l1sram_lock, l1_data_sram_lock, l1_inst_sram_lock; +static spinlock_t l2_sram_lock; /* the data structure for L1 scratchpad and DATA SRAM */ struct sram_piece { @@ -65,6 +66,10 @@ static struct sram_piece free_l1_data_B_sram_head, used_l1_data_B_sram_head; static struct sram_piece free_l1_inst_sram_head, used_l1_inst_sram_head; #endif +#ifdef L2_LENGTH +static struct sram_piece free_l2_sram_head, used_l2_sram_head; +#endif + static struct kmem_cache *sram_piece_cache; /* L1 Scratchpad SRAM initialization function */ @@ -97,7 +102,7 @@ static void __init l1_data_sram_init(void) free_l1_data_A_sram_head.next = kmem_cache_alloc(sram_piece_cache, GFP_KERNEL); if (!free_l1_data_A_sram_head.next) { - printk(KERN_INFO"Fail to initialize Data A SRAM.\n"); + printk(KERN_INFO"Fail to initialize L1 Data A SRAM.\n"); return; } @@ -110,7 +115,7 @@ static void __init l1_data_sram_init(void) used_l1_data_A_sram_head.next = NULL; - printk(KERN_INFO "Blackfin Data A SRAM: %d KB (%d KB free)\n", + printk(KERN_INFO "Blackfin L1 Data A SRAM: %d KB (%d KB free)\n", L1_DATA_A_LENGTH >> 10, free_l1_data_A_sram_head.next->size >> 10); #endif @@ -118,7 +123,7 @@ static void __init l1_data_sram_init(void) free_l1_data_B_sram_head.next = kmem_cache_alloc(sram_piece_cache, GFP_KERNEL); if (!free_l1_data_B_sram_head.next) { - printk(KERN_INFO"Fail to initialize Data B SRAM.\n"); + printk(KERN_INFO"Fail to initialize L1 Data B SRAM.\n"); return; } @@ -131,7 +136,7 @@ static void __init l1_data_sram_init(void) used_l1_data_B_sram_head.next = NULL; - printk(KERN_INFO "Blackfin Data B SRAM: %d KB (%d KB free)\n", + printk(KERN_INFO "Blackfin L1 Data B SRAM: %d KB (%d KB free)\n", L1_DATA_B_LENGTH >> 10, free_l1_data_B_sram_head.next->size >> 10); #endif @@ -146,7 +151,7 @@ static void __init l1_inst_sram_init(void) free_l1_inst_sram_head.next = kmem_cache_alloc(sram_piece_cache, GFP_KERNEL); if (!free_l1_inst_sram_head.next) { - printk(KERN_INFO"Fail to initialize Instruction SRAM.\n"); + printk(KERN_INFO"Fail to initialize L1 Instruction SRAM.\n"); return; } @@ -159,7 +164,7 @@ static void __init l1_inst_sram_init(void) used_l1_inst_sram_head.next = NULL; - printk(KERN_INFO "Blackfin Instruction SRAM: %d KB (%d KB free)\n", + printk(KERN_INFO "Blackfin L1 Instruction SRAM: %d KB (%d KB free)\n", L1_CODE_LENGTH >> 10, free_l1_inst_sram_head.next->size >> 10); #endif @@ -168,6 +173,33 @@ static void __init l1_inst_sram_init(void) spin_lock_init(&l1_inst_sram_lock); } +static void __init l2_sram_init(void) +{ +#ifdef L2_LENGTH + free_l2_sram_head.next = + kmem_cache_alloc(sram_piece_cache, GFP_KERNEL); + if (!free_l2_sram_head.next) { + printk(KERN_INFO"Fail to initialize L2 SRAM.\n"); + return; + } + + free_l2_sram_head.next->paddr = (void *)L2_START + + (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2); + free_l2_sram_head.next->size = L2_LENGTH - + (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2); + free_l2_sram_head.next->pid = 0; + free_l2_sram_head.next->next = NULL; + + used_l2_sram_head.next = NULL; + + printk(KERN_INFO "Blackfin L2 SRAM: %d KB (%d KB free)\n", + L2_LENGTH >> 10, + free_l2_sram_head.next->size >> 10); +#endif + + /* mutex initialize */ + spin_lock_init(&l2_sram_lock); +} void __init bfin_sram_init(void) { sram_piece_cache = kmem_cache_create("sram_piece_cache", @@ -177,10 +209,11 @@ void __init bfin_sram_init(void) l1sram_init(); l1_data_sram_init(); l1_inst_sram_init(); + l2_sram_init(); } -/* L1 memory allocate function */ -static void *_l1_sram_alloc(size_t size, struct sram_piece *pfree_head, +/* SRAM allocate function */ +static void *_sram_alloc(size_t size, struct sram_piece *pfree_head, struct sram_piece *pused_head) { struct sram_piece *pslot, *plast, *pavail; @@ -236,7 +269,7 @@ static void *_l1_sram_alloc(size_t size, struct sram_piece *pfree_head, } /* Allocate the largest available block. */ -static void *_l1_sram_alloc_max(struct sram_piece *pfree_head, +static void *_sram_alloc_max(struct sram_piece *pfree_head, struct sram_piece *pused_head, unsigned long *psize) { @@ -259,11 +292,11 @@ static void *_l1_sram_alloc_max(struct sram_piece *pfree_head, *psize = pmax->size; - return _l1_sram_alloc(*psize, pfree_head, pused_head); + return _sram_alloc(*psize, pfree_head, pused_head); } -/* L1 memory free function */ -static int _l1_sram_free(const void *addr, +/* SRAM free function */ +static int _sram_free(const void *addr, struct sram_piece *pfree_head, struct sram_piece *pused_head) { @@ -333,6 +366,11 @@ int sram_free(const void *addr) else if (addr >= (void *)L1_DATA_B_START && addr < (void *)(L1_DATA_B_START + L1_DATA_B_LENGTH)) return l1_data_B_sram_free(addr); +#endif +#ifdef L2_LENGTH + else if (addr >= (void *)L2_START + && addr < (void *)(L2_START + L2_LENGTH)) + return l2_sram_free(addr); #endif else return -1; @@ -348,7 +386,7 @@ void *l1_data_A_sram_alloc(size_t size) spin_lock_irqsave(&l1_data_sram_lock, flags); #if L1_DATA_A_LENGTH != 0 - addr = _l1_sram_alloc(size, &free_l1_data_A_sram_head, + addr = _sram_alloc(size, &free_l1_data_A_sram_head, &used_l1_data_A_sram_head); #endif @@ -371,7 +409,7 @@ int l1_data_A_sram_free(const void *addr) spin_lock_irqsave(&l1_data_sram_lock, flags); #if L1_DATA_A_LENGTH != 0 - ret = _l1_sram_free(addr, &free_l1_data_A_sram_head, + ret = _sram_free(addr, &free_l1_data_A_sram_head, &used_l1_data_A_sram_head); #else ret = -1; @@ -393,7 +431,7 @@ void *l1_data_B_sram_alloc(size_t size) /* add mutex operation */ spin_lock_irqsave(&l1_data_sram_lock, flags); - addr = _l1_sram_alloc(size, &free_l1_data_B_sram_head, + addr = _sram_alloc(size, &free_l1_data_B_sram_head, &used_l1_data_B_sram_head); /* add mutex operation */ @@ -418,7 +456,7 @@ int l1_data_B_sram_free(const void *addr) /* add mutex operation */ spin_lock_irqsave(&l1_data_sram_lock, flags); - ret = _l1_sram_free(addr, &free_l1_data_B_sram_head, + ret = _sram_free(addr, &free_l1_data_B_sram_head, &used_l1_data_B_sram_head); /* add mutex operation */ @@ -472,7 +510,7 @@ void *l1_inst_sram_alloc(size_t size) /* add mutex operation */ spin_lock_irqsave(&l1_inst_sram_lock, flags); - addr = _l1_sram_alloc(size, &free_l1_inst_sram_head, + addr = _sram_alloc(size, &free_l1_inst_sram_head, &used_l1_inst_sram_head); /* add mutex operation */ @@ -497,7 +535,7 @@ int l1_inst_sram_free(const void *addr) /* add mutex operation */ spin_lock_irqsave(&l1_inst_sram_lock, flags); - ret = _l1_sram_free(addr, &free_l1_inst_sram_head, + ret = _sram_free(addr, &free_l1_inst_sram_head, &used_l1_inst_sram_head); /* add mutex operation */ @@ -519,7 +557,7 @@ void *l1sram_alloc(size_t size) /* add mutex operation */ spin_lock_irqsave(&l1sram_lock, flags); - addr = _l1_sram_alloc(size, &free_l1_ssram_head, + addr = _sram_alloc(size, &free_l1_ssram_head, &used_l1_ssram_head); /* add mutex operation */ @@ -537,7 +575,7 @@ void *l1sram_alloc_max(size_t *psize) /* add mutex operation */ spin_lock_irqsave(&l1sram_lock, flags); - addr = _l1_sram_alloc_max(&free_l1_ssram_head, + addr = _sram_alloc_max(&free_l1_ssram_head, &used_l1_ssram_head, psize); /* add mutex operation */ @@ -555,7 +593,7 @@ int l1sram_free(const void *addr) /* add mutex operation */ spin_lock_irqsave(&l1sram_lock, flags); - ret = _l1_sram_free(addr, &free_l1_ssram_head, + ret = _sram_free(addr, &free_l1_ssram_head, &used_l1_ssram_head); /* add mutex operation */ @@ -564,6 +602,64 @@ int l1sram_free(const void *addr) return ret; } +void *l2_sram_alloc(size_t size) +{ +#ifdef L2_LENGTH + unsigned flags; + void *addr; + + /* add mutex operation */ + spin_lock_irqsave(&l2_sram_lock, flags); + + addr = _sram_alloc(size, &free_l2_sram_head, + &used_l2_sram_head); + + /* add mutex operation */ + spin_unlock_irqrestore(&l2_sram_lock, flags); + + pr_debug("Allocated address in l2_sram_alloc is 0x%lx+0x%lx\n", + (long unsigned int)addr, size); + + return addr; +#else + return NULL; +#endif +} +EXPORT_SYMBOL(l2_sram_alloc); + +void *l2_sram_zalloc(size_t size) +{ + void *addr = l2_sram_alloc(size); + + if (addr) + memset(addr, 0x00, size); + + return addr; +} +EXPORT_SYMBOL(l2_sram_zalloc); + +int l2_sram_free(const void *addr) +{ +#ifdef L2_LENGTH + unsigned flags; + int ret; + + /* add mutex operation */ + spin_lock_irqsave(&l2_sram_lock, flags); + + ret = _sram_free(addr, &free_l2_sram_head, + &used_l2_sram_head); + + /* add mutex operation */ + spin_unlock_irqrestore(&l2_sram_lock, flags); + + return ret; +#else + return -1; +#endif +} +EXPORT_SYMBOL(l2_sram_free); + int sram_free_with_lsl(const void *addr) { struct sram_list_struct *lsl, **tmp; @@ -602,6 +698,9 @@ void *sram_alloc_with_lsl(size_t size, unsigned long flags) if (addr == NULL && (flags & L1_DATA_B_SRAM)) addr = l1_data_B_sram_alloc(size); + if (addr == NULL && (flags & L2_SRAM)) + addr = l2_sram_alloc(size); + if (addr == NULL) { kfree(lsl); return NULL; @@ -621,7 +720,7 @@ EXPORT_SYMBOL(sram_alloc_with_lsl); /* Need to keep line of output the same. Currently, that is 44 bytes * (including newline). */ -static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc, +static int _sram_proc_read(char *buf, int *len, int count, const char *desc, struct sram_piece *pfree_head, struct sram_piece *pused_head) { @@ -630,13 +729,13 @@ static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc, if (!pfree_head || !pused_head) return -1; - *len += sprintf(&buf[*len], "--- L1 %-14s Size PID State \n", desc); + *len += sprintf(&buf[*len], "--- SRAM %-14s Size PID State \n", desc); /* search the relevant memory slot */ pslot = pused_head->next; while (pslot != NULL) { - *len += sprintf(&buf[*len], "%p-%p %8i %5i %-10s\n", + *len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n", pslot->paddr, pslot->paddr + pslot->size, pslot->size, pslot->pid, "ALLOCATED"); @@ -646,7 +745,7 @@ static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc, pslot = pfree_head->next; while (pslot != NULL) { - *len += sprintf(&buf[*len], "%p-%p %8i %5i %-10s\n", + *len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n", pslot->paddr, pslot->paddr + pslot->size, pslot->size, pslot->pid, "FREE"); @@ -655,38 +754,43 @@ static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc, return 0; } -static int l1sram_proc_read(char *buf, char **start, off_t offset, int count, +static int sram_proc_read(char *buf, char **start, off_t offset, int count, int *eof, void *data) { int len = 0; - if (_l1sram_proc_read(buf, &len, count, "Scratchpad", + if (_sram_proc_read(buf, &len, count, "Scratchpad", &free_l1_ssram_head, &used_l1_ssram_head)) goto not_done; #if L1_DATA_A_LENGTH != 0 - if (_l1sram_proc_read(buf, &len, count, "Data A", + if (_sram_proc_read(buf, &len, count, "L1 Data A", &free_l1_data_A_sram_head, &used_l1_data_A_sram_head)) goto not_done; #endif #if L1_DATA_B_LENGTH != 0 - if (_l1sram_proc_read(buf, &len, count, "Data B", + if (_sram_proc_read(buf, &len, count, "L1 Data B", &free_l1_data_B_sram_head, &used_l1_data_B_sram_head)) goto not_done; #endif #if L1_CODE_LENGTH != 0 - if (_l1sram_proc_read(buf, &len, count, "Instruction", + if (_sram_proc_read(buf, &len, count, "L1 Instruction", &free_l1_inst_sram_head, &used_l1_inst_sram_head)) goto not_done; #endif +#ifdef L2_LENGTH + if (_sram_proc_read(buf, &len, count, "L2", + &free_l2_sram_head, &used_l2_sram_head)) + goto not_done; +#endif *eof = 1; not_done: return len; } -static int __init l1sram_proc_init(void) +static int __init sram_proc_init(void) { struct proc_dir_entry *ptr; ptr = create_proc_entry("sram", S_IFREG | S_IRUGO, NULL); @@ -695,8 +799,8 @@ static int __init l1sram_proc_init(void) return -1; } ptr->owner = THIS_MODULE; - ptr->read_proc = l1sram_proc_read; + ptr->read_proc = sram_proc_read; return 0; } -late_initcall(l1sram_proc_init); +late_initcall(sram_proc_init); #endif diff --git a/include/asm-blackfin/bfin-global.h b/include/asm-blackfin/bfin-global.h index 76033831eb35..320aa5e167e9 100644 --- a/include/asm-blackfin/bfin-global.h +++ b/include/asm-blackfin/bfin-global.h @@ -92,16 +92,20 @@ extern void *l1_data_B_sram_alloc(size_t); extern void *l1_inst_sram_alloc(size_t); extern void *l1_data_sram_alloc(size_t); extern void *l1_data_sram_zalloc(size_t); +extern void *l2_sram_alloc(size_t); +extern void *l2_sram_zalloc(size_t); extern int l1_data_A_sram_free(const void*); extern int l1_data_B_sram_free(const void*); extern int l1_inst_sram_free(const void*); extern int l1_data_sram_free(const void*); +extern int l2_sram_free(const void *); extern int sram_free(const void*); #define L1_INST_SRAM 0x00000001 #define L1_DATA_A_SRAM 0x00000002 #define L1_DATA_B_SRAM 0x00000004 #define L1_DATA_SRAM 0x00000006 +#define L2_SRAM 0x00000008 extern void *sram_alloc_with_lsl(size_t, unsigned long); extern int sram_free_with_lsl(const void*); @@ -114,7 +118,9 @@ extern struct file_operations dpmc_fops; extern unsigned long _ramstart, _ramend, _rambase; extern unsigned long memory_start, memory_end, physical_mem_end; extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], - _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[]; + _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[], + _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], + _ebss_l2[], _l2_lma_start[]; #ifdef CONFIG_MTD_UCLINUX extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; diff --git a/include/asm-blackfin/elf.h b/include/asm-blackfin/elf.h index 30303fc8292c..67a03a8a353e 100644 --- a/include/asm-blackfin/elf.h +++ b/include/asm-blackfin/elf.h @@ -15,6 +15,8 @@ #define EF_BFIN_FDPIC 0x00000002 /* -mfdpic */ #define EF_BFIN_CODE_IN_L1 0x00000010 /* --code-in-l1 */ #define EF_BFIN_DATA_IN_L1 0x00000020 /* --data-in-l1 */ +#define EF_BFIN_CODE_IN_L2 0x00000040 /* --code-in-l2 */ +#define EF_BFIN_DATA_IN_L2 0x00000080 /* --data-in-l2 */ typedef unsigned long elf_greg_t; diff --git a/include/asm-blackfin/module.h b/include/asm-blackfin/module.h index 3c7ce1644280..e3128df139d6 100644 --- a/include/asm-blackfin/module.h +++ b/include/asm-blackfin/module.h @@ -6,8 +6,6 @@ #define Elf_Shdr Elf32_Shdr #define Elf_Sym Elf32_Sym #define Elf_Ehdr Elf32_Ehdr -#define FLG_CODE_IN_L1 0x10 -#define FLG_DATA_IN_L1 0x20 struct mod_arch_specific { Elf_Shdr *text_l1; @@ -15,5 +13,8 @@ struct mod_arch_specific { Elf_Shdr *bss_a_l1; Elf_Shdr *data_b_l1; Elf_Shdr *bss_b_l1; + Elf_Shdr *text_l2; + Elf_Shdr *data_l2; + Elf_Shdr *bss_l2; }; #endif /* _ASM_BFIN_MODULE_H */ -- cgit v1.2.3 From aa3348f461da1df5c583f9916ab80298ddd68eff Mon Sep 17 00:00:00 2001 From: Graf Yang Date: Sat, 19 Jul 2008 15:54:10 +0800 Subject: Blackfin arch: Add return value check in bfin_sir_probe(), remove SSYNC(). Signed-off-by: Graf Yang Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf527/bfin_sir.h | 21 ++++++++++++----- include/asm-blackfin/mach-bf533/bfin_sir.h | 13 +++++++---- include/asm-blackfin/mach-bf537/bfin_sir.h | 21 ++++++++++++----- include/asm-blackfin/mach-bf548/bfin_sir.h | 37 ++++++++++++++++++++++-------- include/asm-blackfin/mach-bf561/bfin_sir.h | 13 +++++++---- 5 files changed, 75 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/include/asm-blackfin/mach-bf527/bfin_sir.h b/include/asm-blackfin/mach-bf527/bfin_sir.h index 0612d0c9501c..cfd8ad4f1f2c 100644 --- a/include/asm-blackfin/mach-bf527/bfin_sir.h +++ b/include/asm-blackfin/mach-bf527/bfin_sir.h @@ -118,16 +118,25 @@ static inline void SIR_UART_CLEAR_LSR(struct bfin_sir_port *port) #define DRIVER_NAME "bfin_sir" -static void bfin_sir_hw_init(void) +static int bfin_sir_hw_init(void) { + int ret = -ENODEV; #ifdef CONFIG_BFIN_SIR0 - peripheral_request(P_UART0_TX, DRIVER_NAME); - peripheral_request(P_UART0_RX, DRIVER_NAME); + ret = peripheral_request(P_UART0_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART0_RX, DRIVER_NAME); + if (ret) + return ret; #endif #ifdef CONFIG_BFIN_SIR1 - peripheral_request(P_UART1_TX, DRIVER_NAME); - peripheral_request(P_UART1_RX, DRIVER_NAME); + ret = peripheral_request(P_UART1_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART1_RX, DRIVER_NAME); + if (ret) + return ret; #endif - SSYNC(); + return ret; } diff --git a/include/asm-blackfin/mach-bf533/bfin_sir.h b/include/asm-blackfin/mach-bf533/bfin_sir.h index cefcf8bb505b..9bb87e9e2e9b 100644 --- a/include/asm-blackfin/mach-bf533/bfin_sir.h +++ b/include/asm-blackfin/mach-bf533/bfin_sir.h @@ -110,11 +110,16 @@ static inline void SIR_UART_CLEAR_LSR(struct bfin_sir_port *port) #define DRIVER_NAME "bfin_sir" -static void bfin_sir_hw_init(void) +static int bfin_sir_hw_init(void) { + int ret = -ENODEV; #ifdef CONFIG_BFIN_SIR0 - peripheral_request(P_UART0_TX, DRIVER_NAME); - peripheral_request(P_UART0_RX, DRIVER_NAME); + ret = peripheral_request(P_UART0_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART0_RX, DRIVER_NAME); + if (ret) + return ret; #endif - SSYNC(); + return ret; } diff --git a/include/asm-blackfin/mach-bf537/bfin_sir.h b/include/asm-blackfin/mach-bf537/bfin_sir.h index 0612d0c9501c..cfd8ad4f1f2c 100644 --- a/include/asm-blackfin/mach-bf537/bfin_sir.h +++ b/include/asm-blackfin/mach-bf537/bfin_sir.h @@ -118,16 +118,25 @@ static inline void SIR_UART_CLEAR_LSR(struct bfin_sir_port *port) #define DRIVER_NAME "bfin_sir" -static void bfin_sir_hw_init(void) +static int bfin_sir_hw_init(void) { + int ret = -ENODEV; #ifdef CONFIG_BFIN_SIR0 - peripheral_request(P_UART0_TX, DRIVER_NAME); - peripheral_request(P_UART0_RX, DRIVER_NAME); + ret = peripheral_request(P_UART0_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART0_RX, DRIVER_NAME); + if (ret) + return ret; #endif #ifdef CONFIG_BFIN_SIR1 - peripheral_request(P_UART1_TX, DRIVER_NAME); - peripheral_request(P_UART1_RX, DRIVER_NAME); + ret = peripheral_request(P_UART1_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART1_RX, DRIVER_NAME); + if (ret) + return ret; #endif - SSYNC(); + return ret; } diff --git a/include/asm-blackfin/mach-bf548/bfin_sir.h b/include/asm-blackfin/mach-bf548/bfin_sir.h index 5e94271c7e3b..c41f9cf00268 100644 --- a/include/asm-blackfin/mach-bf548/bfin_sir.h +++ b/include/asm-blackfin/mach-bf548/bfin_sir.h @@ -124,26 +124,43 @@ struct bfin_sir_self { #define DRIVER_NAME "bfin_sir" -static void bfin_sir_hw_init(void) +static int bfin_sir_hw_init(void) { + int ret = -ENODEV; #ifdef CONFIG_BFIN_SIR0 - peripheral_request(P_UART0_TX, DRIVER_NAME); - peripheral_request(P_UART0_RX, DRIVER_NAME); + ret = peripheral_request(P_UART0_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART0_RX, DRIVER_NAME); + if (ret) + return ret; #endif #ifdef CONFIG_BFIN_SIR1 - peripheral_request(P_UART1_TX, DRIVER_NAME); - peripheral_request(P_UART1_RX, DRIVER_NAME); + ret = peripheral_request(P_UART1_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART1_RX, DRIVER_NAME); + if (ret) + return ret; #endif #ifdef CONFIG_BFIN_SIR2 - peripheral_request(P_UART2_TX, DRIVER_NAME); - peripheral_request(P_UART2_RX, DRIVER_NAME); + ret = peripheral_request(P_UART2_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART2_RX, DRIVER_NAME); + if (ret) + return ret; #endif #ifdef CONFIG_BFIN_SIR3 - peripheral_request(P_UART3_TX, DRIVER_NAME); - peripheral_request(P_UART3_RX, DRIVER_NAME); + ret = peripheral_request(P_UART3_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART3_RX, DRIVER_NAME); + if (ret) + return ret; #endif - SSYNC(); + return ret; } diff --git a/include/asm-blackfin/mach-bf561/bfin_sir.h b/include/asm-blackfin/mach-bf561/bfin_sir.h index cefcf8bb505b..9bb87e9e2e9b 100644 --- a/include/asm-blackfin/mach-bf561/bfin_sir.h +++ b/include/asm-blackfin/mach-bf561/bfin_sir.h @@ -110,11 +110,16 @@ static inline void SIR_UART_CLEAR_LSR(struct bfin_sir_port *port) #define DRIVER_NAME "bfin_sir" -static void bfin_sir_hw_init(void) +static int bfin_sir_hw_init(void) { + int ret = -ENODEV; #ifdef CONFIG_BFIN_SIR0 - peripheral_request(P_UART0_TX, DRIVER_NAME); - peripheral_request(P_UART0_RX, DRIVER_NAME); + ret = peripheral_request(P_UART0_TX, DRIVER_NAME); + if (ret) + return ret; + ret = peripheral_request(P_UART0_RX, DRIVER_NAME); + if (ret) + return ret; #endif - SSYNC(); + return ret; } -- cgit v1.2.3 From 0138da6101fa3cdfea7f470d014c2f13cc03e7a9 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Sat, 19 Jul 2008 16:56:53 +0800 Subject: Blackfin arch: fix bug - detect 0.1 silicon revision BF527-EZKIT as 0.0 version Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- include/asm-blackfin/processor.h | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-blackfin/processor.h b/include/asm-blackfin/processor.h index 1c0040724612..6f3995b119d8 100644 --- a/include/asm-blackfin/processor.h +++ b/include/asm-blackfin/processor.h @@ -112,7 +112,26 @@ unsigned long get_wchan(struct task_struct *p); static inline uint32_t __pure bfin_revid(void) { /* stored in the upper 4 bits */ - return bfin_read_CHIPID() >> 28; + uint32_t revid = bfin_read_CHIPID() >> 28; + +#ifdef CONFIG_BF52x + /* ANOMALY_05000357 + * Incorrect Revision Number in DSPID Register + */ + if (revid == 0) + switch (bfin_read16(_BOOTROM_GET_DXE_ADDRESS_TWI)) { + case 0x0010: + revid = 0; + break; + case 0x2796: + revid = 1; + break; + default: + revid = 0xFFFF; + break; + } +#endif + return revid; } static inline uint32_t __pure bfin_compiled_revid(void) -- cgit v1.2.3 From 3c9cb6de1e5ad37d1558fdb0d9d2bed5a7bac0d9 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sat, 19 Jul 2008 02:07:25 -0700 Subject: x86: introduce x86_quirks introduce x86_quirks array of boot-time quirk methods. No change in functionality intended. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/kernel/e820.c | 9 ++------- arch/x86/kernel/mpparse.c | 17 +++++------------ arch/x86/kernel/setup.c | 4 ++++ arch/x86/kernel/visws_quirks.c | 42 ++++++++++++++++++++---------------------- arch/x86/mach-default/setup.c | 24 ++++++++---------------- include/asm-x86/setup.h | 18 +++++++++++------- 6 files changed, 50 insertions(+), 64 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 6c60aeaac15f..9af89078f7bb 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1299,11 +1299,6 @@ void __init e820_reserve_resources(void) } } -/* - * Non-standard memory setup can be specified via this quirk: - */ -char * (*arch_memory_setup_quirk)(void); - char *__init default_machine_specific_memory_setup(void) { char *who = "BIOS-e820"; @@ -1344,8 +1339,8 @@ char *__init default_machine_specific_memory_setup(void) char *__init __attribute__((weak)) machine_specific_memory_setup(void) { - if (arch_memory_setup_quirk) { - char *who = arch_memory_setup_quirk(); + if (x86_quirks->arch_memory_setup) { + char *who = x86_quirks->arch_memory_setup(); if (who) return who; diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 3b25e49380c6..3cbd2df3abe4 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #ifdef CONFIG_X86_32 @@ -725,12 +726,6 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type) static struct intel_mp_floating *mpf_found; -/* - * Machine specific quirk for finding the SMP config before other setup - * activities destroy the table: - */ -int (*mach_get_smp_config_quirk)(unsigned int early); - /* * Scan the memory blocks for an SMP configuration block. */ @@ -738,8 +733,8 @@ static void __init __get_smp_config(unsigned int early) { struct intel_mp_floating *mpf = mpf_found; - if (mach_get_smp_config_quirk) { - if (mach_get_smp_config_quirk(early)) + if (x86_quirks->mach_get_smp_config) { + if (x86_quirks->mach_get_smp_config(early)) return; } if (acpi_lapic && early) @@ -899,14 +894,12 @@ static int __init smp_scan_config(unsigned long base, unsigned long length, return 0; } -int (*mach_find_smp_config_quirk)(unsigned int reserve); - static void __init __find_smp_config(unsigned int reserve) { unsigned int address; - if (mach_find_smp_config_quirk) { - if (mach_find_smp_config_quirk(reserve)) + if (x86_quirks->mach_find_smp_config) { + if (x86_quirks->mach_find_smp_config(reserve)) return; } /* diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 4a2b8acc1d95..bbcc13d0b569 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -574,6 +574,10 @@ static int __init setup_elfcorehdr(char *arg) early_param("elfcorehdr", setup_elfcorehdr); #endif +static struct x86_quirks default_x86_quirks __initdata; + +struct x86_quirks *x86_quirks __initdata = &default_x86_quirks; + /* * Determine if we were loaded by an EFI loader. If so, then we have also been * passed the efi memmap, systab, etc., so we should use these data structures diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c index e94bdb6add1d..41e01b145c48 100644 --- a/arch/x86/kernel/visws_quirks.c +++ b/arch/x86/kernel/visws_quirks.c @@ -73,7 +73,7 @@ int is_visws_box(void) return visws_board_type >= 0; } -static int __init visws_time_init_quirk(void) +static int __init visws_time_init(void) { printk(KERN_INFO "Starting Cobalt Timer system clock\n"); @@ -93,7 +93,7 @@ static int __init visws_time_init_quirk(void) return 0; } -static int __init visws_pre_intr_init_quirk(void) +static int __init visws_pre_intr_init(void) { init_VISWS_APIC_irqs(); @@ -114,7 +114,7 @@ EXPORT_SYMBOL(sgivwfb_mem_size); long long mem_size __initdata = 0; -static char * __init visws_memory_setup_quirk(void) +static char * __init visws_memory_setup(void) { long long gfx_mem_size = 8 * MB; @@ -176,7 +176,7 @@ static void visws_machine_power_off(void) outl(PIIX_SPECIAL_STOP, 0xCFC); } -static int __init visws_get_smp_config_quirk(unsigned int early) +static int __init visws_get_smp_config(unsigned int early) { /* * Prevent MP-table parsing by the generic code: @@ -192,7 +192,7 @@ extern unsigned int __cpuinitdata maxcpus; * No problem for Linux. */ -static void __init MP_processor_info (struct mpc_config_processor *m) +static void __init MP_processor_info(struct mpc_config_processor *m) { int ver, logical_apicid; physid_mask_t apic_cpus; @@ -232,7 +232,7 @@ static void __init MP_processor_info (struct mpc_config_processor *m) apic_version[m->mpc_apicid] = ver; } -int __init visws_find_smp_config_quirk(unsigned int reserve) +static int __init visws_find_smp_config(unsigned int reserve) { struct mpc_config_processor *mp = phys_to_virt(CO_CPU_TAB_PHYS); unsigned short ncpus = readw(phys_to_virt(CO_CPU_NUM_PHYS)); @@ -258,7 +258,17 @@ int __init visws_find_smp_config_quirk(unsigned int reserve) return 1; } -extern int visws_trap_init_quirk(void); +static int visws_trap_init(void); + +static struct x86_quirks visws_x86_quirks __initdata = { + .arch_time_init = visws_time_init, + .arch_pre_intr_init = visws_pre_intr_init, + .arch_memory_setup = visws_memory_setup, + .arch_intr_init = NULL, + .arch_trap_init = visws_trap_init, + .mach_get_smp_config = visws_get_smp_config, + .mach_find_smp_config = visws_find_smp_config, +}; void __init visws_early_detect(void) { @@ -272,16 +282,10 @@ void __init visws_early_detect(void) /* * Install special quirks for timer, interrupt and memory setup: - */ - arch_time_init_quirk = visws_time_init_quirk; - arch_pre_intr_init_quirk = visws_pre_intr_init_quirk; - arch_memory_setup_quirk = visws_memory_setup_quirk; - - /* * Fall back to generic behavior for traps: + * Override generic MP-table parsing: */ - arch_intr_init_quirk = NULL; - arch_trap_init_quirk = visws_trap_init_quirk; + x86_quirks = &visws_x86_quirks; /* * Install reboot quirks: @@ -294,12 +298,6 @@ void __init visws_early_detect(void) */ no_broadcast = 0; - /* - * Override generic MP-table parsing: - */ - mach_get_smp_config_quirk = visws_get_smp_config_quirk; - mach_find_smp_config_quirk = visws_find_smp_config_quirk; - #ifdef CONFIG_X86_IO_APIC /* * Turn off IO-APIC detection and initialization: @@ -426,7 +424,7 @@ static __init void cobalt_init(void) co_apic_read(CO_APIC_ID)); } -int __init visws_trap_init_quirk(void) +static int __init visws_trap_init(void) { lithium_init(); cobalt_init(); diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c index 48278fa7d3de..631dbed9fb9d 100644 --- a/arch/x86/mach-default/setup.c +++ b/arch/x86/mach-default/setup.c @@ -10,14 +10,6 @@ #include #include -/* - * Any quirks to be performed to initialize timers/irqs/etc? - */ -int (*arch_time_init_quirk)(void); -int (*arch_pre_intr_init_quirk)(void); -int (*arch_intr_init_quirk)(void); -int (*arch_trap_init_quirk)(void); - #ifdef CONFIG_HOTPLUG_CPU #define DEFAULT_SEND_IPI (1) #else @@ -37,8 +29,8 @@ int no_broadcast=DEFAULT_SEND_IPI; **/ void __init pre_intr_init_hook(void) { - if (arch_pre_intr_init_quirk) { - if (arch_pre_intr_init_quirk()) + if (x86_quirks->arch_pre_intr_init) { + if (x86_quirks->arch_pre_intr_init()) return; } init_ISA_irqs(); @@ -64,8 +56,8 @@ static struct irqaction irq2 = { **/ void __init intr_init_hook(void) { - if (arch_intr_init_quirk) { - if (arch_intr_init_quirk()) + if (x86_quirks->arch_intr_init) { + if (x86_quirks->arch_intr_init()) return; } #ifdef CONFIG_X86_LOCAL_APIC @@ -97,8 +89,8 @@ void __init pre_setup_arch_hook(void) **/ void __init trap_init_hook(void) { - if (arch_trap_init_quirk) { - if (arch_trap_init_quirk()) + if (x86_quirks->arch_trap_init) { + if (x86_quirks->arch_trap_init()) return; } } @@ -119,13 +111,13 @@ static struct irqaction irq0 = { **/ void __init time_init_hook(void) { - if (arch_time_init_quirk) { + if (x86_quirks->arch_time_init) { /* * A nonzero return code does not mean failure, it means * that the architecture quirk does not want any * generic (timer) setup to be performed after this: */ - if (arch_time_init_quirk()) + if (x86_quirks->arch_time_init()) return; } diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h index 90ab2225e71b..66191d0de3c9 100644 --- a/include/asm-x86/setup.h +++ b/include/asm-x86/setup.h @@ -19,13 +19,17 @@ static inline int is_visws_box(void) { return 0; } /* * Any setup quirks to be performed? */ -extern int (*arch_time_init_quirk)(void); -extern int (*arch_pre_intr_init_quirk)(void); -extern int (*arch_intr_init_quirk)(void); -extern int (*arch_trap_init_quirk)(void); -extern char * (*arch_memory_setup_quirk)(void); -extern int (*mach_get_smp_config_quirk)(unsigned int early); -extern int (*mach_find_smp_config_quirk)(unsigned int reserve); +struct x86_quirks { + int (*arch_time_init)(void); + int (*arch_pre_intr_init)(void); + int (*arch_intr_init)(void); + int (*arch_trap_init)(void); + char * (*arch_memory_setup)(void); + int (*mach_get_smp_config)(unsigned int early); + int (*mach_find_smp_config)(unsigned int reserve); +}; + +extern struct x86_quirks *x86_quirks; #ifndef CONFIG_PARAVIRT #define paravirt_post_allocator_init() do {} while (0) -- cgit v1.2.3 From 64898a8bad8c94ad7a4bd5cc86b66edfbb081f4a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sat, 19 Jul 2008 18:01:16 -0700 Subject: x86: extend and use x86_quirks to clean up NUMAQ code add these new x86_quirks methods: int *mpc_record; int (*mpc_apic_id)(struct mpc_config_processor *m); void (*mpc_oem_bus_info)(struct mpc_config_bus *m, char *name); void (*mpc_oem_pci_bus)(struct mpc_config_bus *m); void (*smp_read_mpc_oem)(struct mp_config_oemtable *oemtable, unsigned short oemsize); ... and move NUMAQ related mps table handling to numaq_32.c. also move the call to smp_read_mpc_oem() to smp_read_mpc() directly. Should not change functionality, albeit it would be nice to get it tested on real NUMAQ as well ... Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/kernel/mpparse.c | 191 ++++------------------------- arch/x86/kernel/numaq_32.c | 190 ++++++++++++++++++++++++++-- include/asm-x86/mach-generic/mach_mpspec.h | 2 + include/asm-x86/setup.h | 10 ++ 4 files changed, 212 insertions(+), 181 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 3cbd2df3abe4..6ae005ccaed8 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -49,76 +49,6 @@ static int __init mpf_checksum(unsigned char *mp, int len) return sum & 0xFF; } -#ifdef CONFIG_X86_NUMAQ -int found_numaq; -/* - * Have to match translation table entries to main table entries by counter - * hence the mpc_record variable .... can't see a less disgusting way of - * doing this .... - */ -struct mpc_config_translation { - unsigned char mpc_type; - unsigned char trans_len; - unsigned char trans_type; - unsigned char trans_quad; - unsigned char trans_global; - unsigned char trans_local; - unsigned short trans_reserved; -}; - - -static int mpc_record; -static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY] - __cpuinitdata; - -static inline int generate_logical_apicid(int quad, int phys_apicid) -{ - return (quad << 4) + (phys_apicid ? phys_apicid << 1 : 1); -} - - -static inline int mpc_apic_id(struct mpc_config_processor *m, - struct mpc_config_translation *translation_record) -{ - int quad = translation_record->trans_quad; - int logical_apicid = generate_logical_apicid(quad, m->mpc_apicid); - - printk(KERN_DEBUG "Processor #%d %u:%u APIC version %d (quad %d, apic %d)\n", - m->mpc_apicid, - (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8, - (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4, - m->mpc_apicver, quad, logical_apicid); - return logical_apicid; -} - -int mp_bus_id_to_node[MAX_MP_BUSSES]; - -int mp_bus_id_to_local[MAX_MP_BUSSES]; - -static void mpc_oem_bus_info(struct mpc_config_bus *m, char *name, - struct mpc_config_translation *translation) -{ - int quad = translation->trans_quad; - int local = translation->trans_local; - - mp_bus_id_to_node[m->mpc_busid] = quad; - mp_bus_id_to_local[m->mpc_busid] = local; - printk(KERN_INFO "Bus #%d is %s (node %d)\n", - m->mpc_busid, name, quad); -} - -int quad_local_to_mp_bus_id [NR_CPUS/4][4]; -static void mpc_oem_pci_bus(struct mpc_config_bus *m, - struct mpc_config_translation *translation) -{ - int quad = translation->trans_quad; - int local = translation->trans_local; - - quad_local_to_mp_bus_id[quad][local] = m->mpc_busid; -} - -#endif - static void __cpuinit MP_processor_info(struct mpc_config_processor *m) { int apicid; @@ -128,14 +58,12 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m) disabled_cpus++; return; } -#ifdef CONFIG_X86_NUMAQ - if (found_numaq) - apicid = mpc_apic_id(m, translation_table[mpc_record]); + + if (x86_quirks->mpc_apic_id) + apicid = x86_quirks->mpc_apic_id(m); else apicid = m->mpc_apicid; -#else - apicid = m->mpc_apicid; -#endif + if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) { bootup_cpu = " (Bootup-CPU)"; boot_cpu_physical_apicid = m->mpc_apicid; @@ -152,12 +80,10 @@ static void __init MP_bus_info(struct mpc_config_bus *m) memcpy(str, m->mpc_bustype, 6); str[6] = 0; -#ifdef CONFIG_X86_NUMAQ - if (found_numaq) - mpc_oem_bus_info(m, str, translation_table[mpc_record]); -#else - printk(KERN_INFO "Bus #%d is %s\n", m->mpc_busid, str); -#endif + if (x86_quirks->mpc_oem_bus_info) + x86_quirks->mpc_oem_bus_info(m, str); + else + printk(KERN_INFO "Bus #%d is %s\n", m->mpc_busid, str); #if MAX_MP_BUSSES < 256 if (m->mpc_busid >= MAX_MP_BUSSES) { @@ -174,10 +100,9 @@ static void __init MP_bus_info(struct mpc_config_bus *m) mp_bus_id_to_type[m->mpc_busid] = MP_BUS_ISA; #endif } else if (strncmp(str, BUSTYPE_PCI, sizeof(BUSTYPE_PCI) - 1) == 0) { -#ifdef CONFIG_X86_NUMAQ - if (found_numaq) - mpc_oem_pci_bus(m, translation_table[mpc_record]); -#endif + if (x86_quirks->mpc_oem_pci_bus) + x86_quirks->mpc_oem_pci_bus(m); + clear_bit(m->mpc_busid, mp_bus_not_pci); #if defined(CONFIG_EISA) || defined (CONFIG_MCA) mp_bus_id_to_type[m->mpc_busid] = MP_BUS_PCI; @@ -317,83 +242,6 @@ static void __init MP_lintsrc_info(struct mpc_config_lintsrc *m) m->mpc_srcbusirq, m->mpc_destapic, m->mpc_destapiclint); } -#ifdef CONFIG_X86_NUMAQ -static void __init MP_translation_info(struct mpc_config_translation *m) -{ - printk(KERN_INFO - "Translation: record %d, type %d, quad %d, global %d, local %d\n", - mpc_record, m->trans_type, m->trans_quad, m->trans_global, - m->trans_local); - - if (mpc_record >= MAX_MPC_ENTRY) - printk(KERN_ERR "MAX_MPC_ENTRY exceeded!\n"); - else - translation_table[mpc_record] = m; /* stash this for later */ - if (m->trans_quad < MAX_NUMNODES && !node_online(m->trans_quad)) - node_set_online(m->trans_quad); -} - -/* - * Read/parse the MPC oem tables - */ - -static void __init smp_read_mpc_oem(struct mp_config_oemtable *oemtable, - unsigned short oemsize) -{ - int count = sizeof(*oemtable); /* the header size */ - unsigned char *oemptr = ((unsigned char *)oemtable) + count; - - mpc_record = 0; - printk(KERN_INFO "Found an OEM MPC table at %8p - parsing it ... \n", - oemtable); - if (memcmp(oemtable->oem_signature, MPC_OEM_SIGNATURE, 4)) { - printk(KERN_WARNING - "SMP mpc oemtable: bad signature [%c%c%c%c]!\n", - oemtable->oem_signature[0], oemtable->oem_signature[1], - oemtable->oem_signature[2], oemtable->oem_signature[3]); - return; - } - if (mpf_checksum((unsigned char *)oemtable, oemtable->oem_length)) { - printk(KERN_WARNING "SMP oem mptable: checksum error!\n"); - return; - } - while (count < oemtable->oem_length) { - switch (*oemptr) { - case MP_TRANSLATION: - { - struct mpc_config_translation *m = - (struct mpc_config_translation *)oemptr; - MP_translation_info(m); - oemptr += sizeof(*m); - count += sizeof(*m); - ++mpc_record; - break; - } - default: - { - printk(KERN_WARNING - "Unrecognised OEM table entry type! - %d\n", - (int)*oemptr); - return; - } - } - } -} - -void numaq_mps_oem_check(struct mp_config_table *mpc, char *oem, - char *productid) -{ - if (strncmp(oem, "IBM NUMA", 8)) - printk("Warning! Not a NUMA-Q system!\n"); - else - found_numaq = 1; - - if (mpc->mpc_oemptr) - smp_read_mpc_oem((struct mp_config_oemtable *)mpc->mpc_oemptr, - mpc->mpc_oemsize); -} -#endif /* CONFIG_X86_NUMAQ */ - /* * Read/parse the MPC */ @@ -458,7 +306,6 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early) } else mps_oem_check(mpc, oem, str); #endif - /* save the local APIC address, it might be non-default */ if (!acpi_lapic) mp_lapic_addr = mpc->mpc_lapic; @@ -466,12 +313,17 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early) if (early) return 1; + if (mpc->mpc_oemptr && x86_quirks->smp_read_mpc_oem) { + struct mp_config_oemtable *oem_table = (struct mp_config_oemtable *)(unsigned long)mpc->mpc_oemptr; + x86_quirks->smp_read_mpc_oem(oem_table, mpc->mpc_oemsize); + } + /* * Now process the configuration blocks. */ -#ifdef CONFIG_X86_NUMAQ - mpc_record = 0; -#endif + if (x86_quirks->mpc_record) + *x86_quirks->mpc_record = 0; + while (count < mpc->mpc_length) { switch (*mpt) { case MP_PROCESSOR: @@ -537,9 +389,8 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early) count = mpc->mpc_length; break; } -#ifdef CONFIG_X86_NUMAQ - ++mpc_record; -#endif + if (x86_quirks->mpc_record) + (*x86_quirks->mpc_record)++; } #ifdef CONFIG_X86_GENERICARCH diff --git a/arch/x86/kernel/numaq_32.c b/arch/x86/kernel/numaq_32.c index a23e8233b9ac..7f4e00d1d893 100644 --- a/arch/x86/kernel/numaq_32.c +++ b/arch/x86/kernel/numaq_32.c @@ -33,6 +33,7 @@ #include #include #include +#include #define MB_TO_PAGES(addr) ((addr) << (20 - PAGE_SHIFT)) @@ -71,6 +72,181 @@ static void __init smp_dump_qct(void) } } + +void __init numaq_tsc_disable(void) +{ + if (!found_numaq) + return; + + if (num_online_nodes() > 1) { + printk(KERN_DEBUG "NUMAQ: disabling TSC\n"); + setup_clear_cpu_cap(X86_FEATURE_TSC); + } +} + +int found_numaq; +/* + * Have to match translation table entries to main table entries by counter + * hence the mpc_record variable .... can't see a less disgusting way of + * doing this .... + */ +struct mpc_config_translation { + unsigned char mpc_type; + unsigned char trans_len; + unsigned char trans_type; + unsigned char trans_quad; + unsigned char trans_global; + unsigned char trans_local; + unsigned short trans_reserved; +}; + +/* x86_quirks member */ +static int mpc_record; +static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY] + __cpuinitdata; + +static inline int generate_logical_apicid(int quad, int phys_apicid) +{ + return (quad << 4) + (phys_apicid ? phys_apicid << 1 : 1); +} + +/* x86_quirks member */ +static int mpc_apic_id(struct mpc_config_processor *m) +{ + int quad = translation_table[mpc_record]->trans_quad; + int logical_apicid = generate_logical_apicid(quad, m->mpc_apicid); + + printk(KERN_DEBUG "Processor #%d %u:%u APIC version %d (quad %d, apic %d)\n", + m->mpc_apicid, + (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8, + (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4, + m->mpc_apicver, quad, logical_apicid); + return logical_apicid; +} + +int mp_bus_id_to_node[MAX_MP_BUSSES]; + +int mp_bus_id_to_local[MAX_MP_BUSSES]; + +/* x86_quirks member */ +static void mpc_oem_bus_info(struct mpc_config_bus *m, char *name) +{ + int quad = translation_table[mpc_record]->trans_quad; + int local = translation_table[mpc_record]->trans_local; + + mp_bus_id_to_node[m->mpc_busid] = quad; + mp_bus_id_to_local[m->mpc_busid] = local; + printk(KERN_INFO "Bus #%d is %s (node %d)\n", + m->mpc_busid, name, quad); +} + +int quad_local_to_mp_bus_id [NR_CPUS/4][4]; + +/* x86_quirks member */ +static void mpc_oem_pci_bus(struct mpc_config_bus *m) +{ + int quad = translation_table[mpc_record]->trans_quad; + int local = translation_table[mpc_record]->trans_local; + + quad_local_to_mp_bus_id[quad][local] = m->mpc_busid; +} + +static void __init MP_translation_info(struct mpc_config_translation *m) +{ + printk(KERN_INFO + "Translation: record %d, type %d, quad %d, global %d, local %d\n", + mpc_record, m->trans_type, m->trans_quad, m->trans_global, + m->trans_local); + + if (mpc_record >= MAX_MPC_ENTRY) + printk(KERN_ERR "MAX_MPC_ENTRY exceeded!\n"); + else + translation_table[mpc_record] = m; /* stash this for later */ + if (m->trans_quad < MAX_NUMNODES && !node_online(m->trans_quad)) + node_set_online(m->trans_quad); +} + +static int __init mpf_checksum(unsigned char *mp, int len) +{ + int sum = 0; + + while (len--) + sum += *mp++; + + return sum & 0xFF; +} + +/* + * Read/parse the MPC oem tables + */ + +static void __init smp_read_mpc_oem(struct mp_config_oemtable *oemtable, + unsigned short oemsize) +{ + int count = sizeof(*oemtable); /* the header size */ + unsigned char *oemptr = ((unsigned char *)oemtable) + count; + + mpc_record = 0; + printk(KERN_INFO "Found an OEM MPC table at %8p - parsing it ... \n", + oemtable); + if (memcmp(oemtable->oem_signature, MPC_OEM_SIGNATURE, 4)) { + printk(KERN_WARNING + "SMP mpc oemtable: bad signature [%c%c%c%c]!\n", + oemtable->oem_signature[0], oemtable->oem_signature[1], + oemtable->oem_signature[2], oemtable->oem_signature[3]); + return; + } + if (mpf_checksum((unsigned char *)oemtable, oemtable->oem_length)) { + printk(KERN_WARNING "SMP oem mptable: checksum error!\n"); + return; + } + while (count < oemtable->oem_length) { + switch (*oemptr) { + case MP_TRANSLATION: + { + struct mpc_config_translation *m = + (struct mpc_config_translation *)oemptr; + MP_translation_info(m); + oemptr += sizeof(*m); + count += sizeof(*m); + ++mpc_record; + break; + } + default: + { + printk(KERN_WARNING + "Unrecognised OEM table entry type! - %d\n", + (int)*oemptr); + return; + } + } + } +} + +static struct x86_quirks numaq_x86_quirks __initdata = { + .arch_time_init = NULL, + .arch_pre_intr_init = NULL, + .arch_memory_setup = NULL, + .arch_intr_init = NULL, + .arch_trap_init = NULL, + .mach_get_smp_config = NULL, + .mach_find_smp_config = NULL, + .mpc_record = &mpc_record, + .mpc_apic_id = mpc_apic_id, + .mpc_oem_bus_info = mpc_oem_bus_info, + .mpc_oem_pci_bus = mpc_oem_pci_bus, + .smp_read_mpc_oem = smp_read_mpc_oem, +}; + +void numaq_mps_oem_check(struct mp_config_table *mpc, char *oem, + char *productid) +{ + if (strncmp(oem, "IBM NUMA", 8)) + printk("Warning! Not a NUMA-Q system!\n"); + else + found_numaq = 1; +} + static __init void early_check_numaq(void) { /* @@ -82,6 +258,9 @@ static __init void early_check_numaq(void) */ if (smp_found_config) early_get_smp_config(); + + if (found_numaq) + x86_quirks = &numaq_x86_quirks; } int __init get_memcfg_numaq(void) @@ -92,14 +271,3 @@ int __init get_memcfg_numaq(void) smp_dump_qct(); return 1; } - -void __init numaq_tsc_disable(void) -{ - if (!found_numaq) - return; - - if (num_online_nodes() > 1) { - printk(KERN_DEBUG "NUMAQ: disabling TSC\n"); - setup_clear_cpu_cap(X86_FEATURE_TSC); - } -} diff --git a/include/asm-x86/mach-generic/mach_mpspec.h b/include/asm-x86/mach-generic/mach_mpspec.h index 9ef0b941bb22..c83c120be538 100644 --- a/include/asm-x86/mach-generic/mach_mpspec.h +++ b/include/asm-x86/mach-generic/mach_mpspec.h @@ -7,4 +7,6 @@ /* Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets. */ #define MAX_MP_BUSSES 260 +extern void numaq_mps_oem_check(struct mp_config_table *mpc, char *oem, + char *productid); #endif /* __ASM_MACH_MPSPEC_H */ diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h index 66191d0de3c9..2585075da9b4 100644 --- a/include/asm-x86/setup.h +++ b/include/asm-x86/setup.h @@ -19,6 +19,9 @@ static inline int is_visws_box(void) { return 0; } /* * Any setup quirks to be performed? */ +struct mpc_config_processor; +struct mpc_config_bus; +struct mp_config_oemtable; struct x86_quirks { int (*arch_time_init)(void); int (*arch_pre_intr_init)(void); @@ -27,6 +30,13 @@ struct x86_quirks { char * (*arch_memory_setup)(void); int (*mach_get_smp_config)(unsigned int early); int (*mach_find_smp_config)(unsigned int reserve); + + int *mpc_record; + int (*mpc_apic_id)(struct mpc_config_processor *m); + void (*mpc_oem_bus_info)(struct mpc_config_bus *m, char *name); + void (*mpc_oem_pci_bus)(struct mpc_config_bus *m); + void (*smp_read_mpc_oem)(struct mp_config_oemtable *oemtable, + unsigned short oemsize); }; extern struct x86_quirks *x86_quirks; -- cgit v1.2.3 From 63b5d7af2556a7de6bf72c5dd0b85a32fb4c3767 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sat, 19 Jul 2008 18:02:26 -0700 Subject: x86: add ->pre_time_init to x86_quirks so NUMAQ can use that to call numaq_pre_time_init() This allows us to remove a NUMAQ special from arch/x86/kernel/setup.c. (and paves the way to remove the NUMAQ subarch) Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/kernel/numaq_32.c | 7 +++++++ arch/x86/kernel/setup.c | 8 -------- arch/x86/kernel/time_32.c | 1 + arch/x86/mach-default/setup.c | 10 ++++++++++ include/asm-x86/arch_hooks.h | 1 + include/asm-x86/setup.h | 1 + 6 files changed, 20 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/numaq_32.c b/arch/x86/kernel/numaq_32.c index 7f4e00d1d893..b8c45610b20a 100644 --- a/arch/x86/kernel/numaq_32.c +++ b/arch/x86/kernel/numaq_32.c @@ -84,6 +84,12 @@ void __init numaq_tsc_disable(void) } } +static int __init numaq_pre_time_init(void) +{ + numaq_tsc_disable(); + return 0; +} + int found_numaq; /* * Have to match translation table entries to main table entries by counter @@ -224,6 +230,7 @@ static void __init smp_read_mpc_oem(struct mp_config_oemtable *oemtable, } static struct x86_quirks numaq_x86_quirks __initdata = { + .arch_pre_time_init = numaq_pre_time_init, .arch_time_init = NULL, .arch_pre_intr_init = NULL, .arch_memory_setup = NULL, diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index bbcc13d0b569..4064616cfa85 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -853,14 +853,6 @@ void __init setup_arch(char **cmdline_p) init_cpu_to_node(); #endif -#ifdef CONFIG_X86_NUMAQ - /* - * need to check online nodes num, call it - * here before time_init/tsc_init - */ - numaq_tsc_disable(); -#endif - init_apic_mappings(); ioapic_init_mappings(); diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c index 059ca6ee59b4..ffe3c664afc0 100644 --- a/arch/x86/kernel/time_32.c +++ b/arch/x86/kernel/time_32.c @@ -129,6 +129,7 @@ void __init hpet_time_init(void) */ void __init time_init(void) { + pre_time_init_hook(); tsc_init(); late_time_init = choose_time_init(); } diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c index 631dbed9fb9d..3d317836be9e 100644 --- a/arch/x86/mach-default/setup.c +++ b/arch/x86/mach-default/setup.c @@ -102,6 +102,16 @@ static struct irqaction irq0 = { .name = "timer" }; +/** + * pre_time_init_hook - do any specific initialisations before. + * + **/ +void __init pre_time_init_hook(void) +{ + if (x86_quirks->arch_pre_time_init) + x86_quirks->arch_pre_time_init(); +} + /** * time_init_hook - do any specific initialisations for the system timer. * diff --git a/include/asm-x86/arch_hooks.h b/include/asm-x86/arch_hooks.h index 768aee8a04ef..8411750ceb63 100644 --- a/include/asm-x86/arch_hooks.h +++ b/include/asm-x86/arch_hooks.h @@ -21,6 +21,7 @@ extern void intr_init_hook(void); extern void pre_intr_init_hook(void); extern void pre_setup_arch_hook(void); extern void trap_init_hook(void); +extern void pre_time_init_hook(void); extern void time_init_hook(void); extern void mca_nmi_hook(void); diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h index 2585075da9b4..f003ceaad6af 100644 --- a/include/asm-x86/setup.h +++ b/include/asm-x86/setup.h @@ -23,6 +23,7 @@ struct mpc_config_processor; struct mpc_config_bus; struct mp_config_oemtable; struct x86_quirks { + int (*arch_pre_time_init)(void); int (*arch_time_init)(void); int (*arch_pre_intr_init)(void); int (*arch_intr_init)(void); -- cgit v1.2.3 From c4dc59ae7af8c1c116d2cb4dffba337f032a6bee Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 20 Jul 2008 09:31:24 +0200 Subject: x86, VisWS: turn into generic arch, eliminate leftover files remove unused leftovers. Signed-off-by: Ingo Molnar --- include/asm-x86/mach-visws/entry_arch.h | 5 ----- include/asm-x86/mach-visws/mach_apic.h | 1 - include/asm-x86/mach-visws/mach_apicdef.h | 1 - include/asm-x86/mach-visws/setup_arch.h | 1 - include/asm-x86/mach-visws/smpboot_hooks.h | 1 - 5 files changed, 9 deletions(-) delete mode 100644 include/asm-x86/mach-visws/entry_arch.h delete mode 100644 include/asm-x86/mach-visws/mach_apic.h delete mode 100644 include/asm-x86/mach-visws/mach_apicdef.h delete mode 100644 include/asm-x86/mach-visws/setup_arch.h delete mode 100644 include/asm-x86/mach-visws/smpboot_hooks.h (limited to 'include') diff --git a/include/asm-x86/mach-visws/entry_arch.h b/include/asm-x86/mach-visws/entry_arch.h deleted file mode 100644 index 86be554342d4..000000000000 --- a/include/asm-x86/mach-visws/entry_arch.h +++ /dev/null @@ -1,5 +0,0 @@ -/* - * VISWS uses the standard Linux entry points: - */ - -#include "../mach-default/entry_arch.h" diff --git a/include/asm-x86/mach-visws/mach_apic.h b/include/asm-x86/mach-visws/mach_apic.h deleted file mode 100644 index 6943e7a1d0e6..000000000000 --- a/include/asm-x86/mach-visws/mach_apic.h +++ /dev/null @@ -1 +0,0 @@ -#include "../mach-default/mach_apic.h" diff --git a/include/asm-x86/mach-visws/mach_apicdef.h b/include/asm-x86/mach-visws/mach_apicdef.h deleted file mode 100644 index 42711d152a93..000000000000 --- a/include/asm-x86/mach-visws/mach_apicdef.h +++ /dev/null @@ -1 +0,0 @@ -#include "../mach-default/mach_apicdef.h" diff --git a/include/asm-x86/mach-visws/setup_arch.h b/include/asm-x86/mach-visws/setup_arch.h deleted file mode 100644 index fa4766ca2d10..000000000000 --- a/include/asm-x86/mach-visws/setup_arch.h +++ /dev/null @@ -1 +0,0 @@ -#include "../mach-default/setup_arch.h" diff --git a/include/asm-x86/mach-visws/smpboot_hooks.h b/include/asm-x86/mach-visws/smpboot_hooks.h deleted file mode 100644 index e4433ca88715..000000000000 --- a/include/asm-x86/mach-visws/smpboot_hooks.h +++ /dev/null @@ -1 +0,0 @@ -#include "../mach-default/smpboot_hooks.h" -- cgit v1.2.3 From 94a1e869c7b96a9d30e260084866383a145fd8ae Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Fri, 18 Jul 2008 18:11:31 -0700 Subject: NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var * Slight optimization when getting one's own cpu_info percpu data. Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar --- include/asm-x86/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h index 55402d2ab938..f92315ed68e1 100644 --- a/include/asm-x86/processor.h +++ b/include/asm-x86/processor.h @@ -134,7 +134,7 @@ extern __u32 cleared_cpu_caps[NCAPINTS]; #ifdef CONFIG_SMP DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info); #define cpu_data(cpu) per_cpu(cpu_info, cpu) -#define current_cpu_data cpu_data(smp_processor_id()) +#define current_cpu_data __get_cpu_var(cpu_info) #else #define cpu_data(cpu) boot_cpu_data #define current_cpu_data boot_cpu_data -- cgit v1.2.3 From 80422d3431cc990b967da129f9eb8e3e9989f841 Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Fri, 18 Jul 2008 18:11:33 -0700 Subject: cpumask: Provide a generic set of CPUMASK_ALLOC macros, FIXUP * Rename CPUMASK_VAR --> CPUMASK_PTR (and simplify) * Fix a semantic error in CPUMASK_ALLOC * Add a bit of commentry to cpumask.h Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar --- include/linux/cpumask.h | 33 ++++++++++++++++++++++++++------- 1 file changed, 26 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 72f9c32c12b0..30d59d1d0626 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -75,16 +75,36 @@ * CPU_MASK_NONE Initializer - no bits set * unsigned long *cpus_addr(mask) Array of unsigned long's in mask * + * CPUMASK_ALLOC kmalloc's a structure that is a composite of many cpumask_t + * variables, and CPUMASK_PTR provides pointers to each field. + * + * The structure should be defined something like this: + * struct my_cpumasks { + * cpumask_t mask1; + * cpumask_t mask2; + * }; + * + * Usage is then: + * CPUMASK_ALLOC(my_cpumasks); + * CPUMASK_PTR(mask1, my_cpumasks); + * CPUMASK_PTR(mask2, my_cpumasks); + * + * --- DO NOT reference cpumask_t pointers until this check --- + * if (my_cpumasks == NULL) + * "kmalloc failed"... + * + * References are now pointers to the cpumask_t variables (*mask1, ...) + * *if NR_CPUS > BITS_PER_LONG * CPUMASK_ALLOC(m) Declares and allocates struct m *m = - * (struct m *)kmalloc(sizeof(*m), ...) - * CPUMASK_FREE(m) Macro for kfree(v) + * kmalloc(sizeof(*m), GFP_KERNEL) + * CPUMASK_FREE(m) Macro for kfree(m) *else * CPUMASK_ALLOC(m) Declares struct m _m, *m = &_m * CPUMASK_FREE(m) Nop *endif - * CPUMASK_VAR(v, m) Declares cpumask_t *v = - * m + offset(struct m, v) + * CPUMASK_PTR(v, m) Declares cpumask_t *v = &(m->v) + * ------------------------------------------------------------------------ * * int cpumask_scnprintf(buf, len, mask) Format cpumask for printing * int cpumask_parse_user(ubuf, ulen, mask) Parse ascii string as cpumask @@ -326,11 +346,10 @@ extern cpumask_t cpu_mask_all; #define CPUMASK_ALLOC(m) struct m *m = kmalloc(sizeof(*m), GFP_KERNEL) #define CPUMASK_FREE(m) kfree(m) #else -#define CPUMASK_ALLOC(m) struct allmasks _m, *m = &_m +#define CPUMASK_ALLOC(m) struct m _m, *m = &_m #define CPUMASK_FREE(m) #endif -#define CPUMASK_VAR(v, m) cpumask_t *v = (cpumask_t *) \ - ((unsigned long)(m) + offsetof(struct m, v)) +#define CPUMASK_PTR(v, m) cpumask_t *v = &(m->v) #define cpumask_scnprintf(buf, len, src) \ __cpumask_scnprintf((buf), (len), &(src), NR_CPUS) -- cgit v1.2.3 From 31656519e132f6612584815f128c83976a9aaaef Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 18 Jul 2008 18:01:23 +0200 Subject: sched, x86: clean up hrtick implementation random uvesafb failures were reported against Gentoo: http://bugs.gentoo.org/show_bug.cgi?id=222799 and Mihai Moldovan bisected it back to: > 8f4d37ec073c17e2d4aa8851df5837d798606d6f is first bad commit > commit 8f4d37ec073c17e2d4aa8851df5837d798606d6f > Author: Peter Zijlstra > Date: Fri Jan 25 21:08:29 2008 +0100 > > sched: high-res preemption tick Linus suspected it to be hrtick + vm86 interaction and observed: > Btw, Peter, Ingo: I think that commit is doing bad things. They aren't > _incorrect_ per se, but they are definitely bad. > > Why? > > Using random _TIF_WORK_MASK flags is really impolite for doing > "scheduling" work. There's a reason that arch/x86/kernel/entry_32.S > special-cases the _TIF_NEED_RESCHED flag: we don't want to exit out of > vm86 mode unnecessarily. > > See the "work_notifysig_v86" label, and how it does that > "save_v86_state()" thing etc etc. Right, I never liked having to fiddle with those TIF flags. Initially I needed it because the hrtimer base lock could not nest in the rq lock. That however is fixed these days. Currently the only reason left to fiddle with the TIF flags is remote wakeups. We cannot program a remote cpu's hrtimer. I've been thinking about using the new and improved IPI function call stuff to implement hrtimer_start_on(). However that does require that smp_call_function_single(.wait=0) works from interrupt context - /me looks at the latest series from Jens - Yes that does seem to be supported, good. Here's a stab at cleaning this stuff up ... Mihai reported test success as well. Signed-off-by: Peter Zijlstra Tested-by: Mihai Moldovan Cc: Michal Januszewski Cc: Antonino Daplas Signed-off-by: Ingo Molnar --- arch/x86/kernel/signal_32.c | 3 - arch/x86/kernel/signal_64.c | 3 - include/asm-x86/thread_info.h | 4 +- kernel/Kconfig.hz | 2 +- kernel/sched.c | 202 +++++++++++++----------------------------- kernel/sched_fair.c | 5 +- 6 files changed, 64 insertions(+), 155 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c index d92373630963..e1fc7bd57bfe 100644 --- a/arch/x86/kernel/signal_32.c +++ b/arch/x86/kernel/signal_32.c @@ -667,8 +667,5 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs); - if (thread_info_flags & _TIF_HRTICK_RESCHED) - hrtick_resched(); - clear_thread_flag(TIF_IRET); } diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c index e53b267662e7..88023fcc7049 100644 --- a/arch/x86/kernel/signal_64.c +++ b/arch/x86/kernel/signal_64.c @@ -502,9 +502,6 @@ void do_notify_resume(struct pt_regs *regs, void *unused, /* deal with pending signal delivery */ if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs); - - if (thread_info_flags & _TIF_HRTICK_RESCHED) - hrtick_resched(); } void signal_fault(struct pt_regs *regs, void __user *frame, char *where) diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h index 895339d2bc0b..d7012634ace4 100644 --- a/include/asm-x86/thread_info.h +++ b/include/asm-x86/thread_info.h @@ -81,7 +81,6 @@ struct thread_info { #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ #define TIF_SECCOMP 8 /* secure computing */ #define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */ -#define TIF_HRTICK_RESCHED 11 /* reprogram hrtick timer */ #define TIF_NOTSC 16 /* TSC is not accessible in userland */ #define TIF_IA32 17 /* 32bit process */ #define TIF_FORK 18 /* ret_from_fork */ @@ -108,7 +107,6 @@ struct thread_info { #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) #define _TIF_MCE_NOTIFY (1 << TIF_MCE_NOTIFY) -#define _TIF_HRTICK_RESCHED (1 << TIF_HRTICK_RESCHED) #define _TIF_NOTSC (1 << TIF_NOTSC) #define _TIF_IA32 (1 << TIF_IA32) #define _TIF_FORK (1 << TIF_FORK) @@ -132,7 +130,7 @@ struct thread_info { /* Only used for 64 bit */ #define _TIF_DO_NOTIFY_MASK \ - (_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED) + (_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY) /* flags to check in __switch_to() */ #define _TIF_WORK_CTXSW \ diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz index 526128a2e622..2a202a846757 100644 --- a/kernel/Kconfig.hz +++ b/kernel/Kconfig.hz @@ -55,4 +55,4 @@ config HZ default 1000 if HZ_1000 config SCHED_HRTICK - def_bool HIGH_RES_TIMERS && X86 + def_bool HIGH_RES_TIMERS diff --git a/kernel/sched.c b/kernel/sched.c index 1ee18dbb4516..c13c75e9f9f7 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -571,8 +571,10 @@ struct rq { #endif #ifdef CONFIG_SCHED_HRTICK - unsigned long hrtick_flags; - ktime_t hrtick_expire; +#ifdef CONFIG_SMP + int hrtick_csd_pending; + struct call_single_data hrtick_csd; +#endif struct hrtimer hrtick_timer; #endif @@ -983,13 +985,6 @@ static struct rq *this_rq_lock(void) return rq; } -static void __resched_task(struct task_struct *p, int tif_bit); - -static inline void resched_task(struct task_struct *p) -{ - __resched_task(p, TIF_NEED_RESCHED); -} - #ifdef CONFIG_SCHED_HRTICK /* * Use HR-timers to deliver accurate preemption points. @@ -1001,25 +996,6 @@ static inline void resched_task(struct task_struct *p) * When we get rescheduled we reprogram the hrtick_timer outside of the * rq->lock. */ -static inline void resched_hrt(struct task_struct *p) -{ - __resched_task(p, TIF_HRTICK_RESCHED); -} - -static inline void resched_rq(struct rq *rq) -{ - unsigned long flags; - - spin_lock_irqsave(&rq->lock, flags); - resched_task(rq->curr); - spin_unlock_irqrestore(&rq->lock, flags); -} - -enum { - HRTICK_SET, /* re-programm hrtick_timer */ - HRTICK_RESET, /* not a new slice */ - HRTICK_BLOCK, /* stop hrtick operations */ -}; /* * Use hrtick when: @@ -1030,72 +1006,17 @@ static inline int hrtick_enabled(struct rq *rq) { if (!sched_feat(HRTICK)) return 0; - if (unlikely(test_bit(HRTICK_BLOCK, &rq->hrtick_flags))) + if (!cpu_online(cpu_of(rq))) return 0; return hrtimer_is_hres_active(&rq->hrtick_timer); } -/* - * Called to set the hrtick timer state. - * - * called with rq->lock held and irqs disabled - */ -static void hrtick_start(struct rq *rq, u64 delay, int reset) -{ - assert_spin_locked(&rq->lock); - - /* - * preempt at: now + delay - */ - rq->hrtick_expire = - ktime_add_ns(rq->hrtick_timer.base->get_time(), delay); - /* - * indicate we need to program the timer - */ - __set_bit(HRTICK_SET, &rq->hrtick_flags); - if (reset) - __set_bit(HRTICK_RESET, &rq->hrtick_flags); - - /* - * New slices are called from the schedule path and don't need a - * forced reschedule. - */ - if (reset) - resched_hrt(rq->curr); -} - static void hrtick_clear(struct rq *rq) { if (hrtimer_active(&rq->hrtick_timer)) hrtimer_cancel(&rq->hrtick_timer); } -/* - * Update the timer from the possible pending state. - */ -static void hrtick_set(struct rq *rq) -{ - ktime_t time; - int set, reset; - unsigned long flags; - - WARN_ON_ONCE(cpu_of(rq) != smp_processor_id()); - - spin_lock_irqsave(&rq->lock, flags); - set = __test_and_clear_bit(HRTICK_SET, &rq->hrtick_flags); - reset = __test_and_clear_bit(HRTICK_RESET, &rq->hrtick_flags); - time = rq->hrtick_expire; - clear_thread_flag(TIF_HRTICK_RESCHED); - spin_unlock_irqrestore(&rq->lock, flags); - - if (set) { - hrtimer_start(&rq->hrtick_timer, time, HRTIMER_MODE_ABS); - if (reset && !hrtimer_active(&rq->hrtick_timer)) - resched_rq(rq); - } else - hrtick_clear(rq); -} - /* * High-resolution timer tick. * Runs from hardirq context with interrupts disabled. @@ -1115,27 +1036,37 @@ static enum hrtimer_restart hrtick(struct hrtimer *timer) } #ifdef CONFIG_SMP -static void hotplug_hrtick_disable(int cpu) +/* + * called from hardirq (IPI) context + */ +static void __hrtick_start(void *arg) { - struct rq *rq = cpu_rq(cpu); - unsigned long flags; - - spin_lock_irqsave(&rq->lock, flags); - rq->hrtick_flags = 0; - __set_bit(HRTICK_BLOCK, &rq->hrtick_flags); - spin_unlock_irqrestore(&rq->lock, flags); + struct rq *rq = arg; - hrtick_clear(rq); + spin_lock(&rq->lock); + hrtimer_restart(&rq->hrtick_timer); + rq->hrtick_csd_pending = 0; + spin_unlock(&rq->lock); } -static void hotplug_hrtick_enable(int cpu) +/* + * Called to set the hrtick timer state. + * + * called with rq->lock held and irqs disabled + */ +static void hrtick_start(struct rq *rq, u64 delay) { - struct rq *rq = cpu_rq(cpu); - unsigned long flags; + struct hrtimer *timer = &rq->hrtick_timer; + ktime_t time = ktime_add_ns(timer->base->get_time(), delay); - spin_lock_irqsave(&rq->lock, flags); - __clear_bit(HRTICK_BLOCK, &rq->hrtick_flags); - spin_unlock_irqrestore(&rq->lock, flags); + timer->expires = time; + + if (rq == this_rq()) { + hrtimer_restart(timer); + } else if (!rq->hrtick_csd_pending) { + __smp_call_function_single(cpu_of(rq), &rq->hrtick_csd); + rq->hrtick_csd_pending = 1; + } } static int @@ -1150,16 +1081,7 @@ hotplug_hrtick(struct notifier_block *nfb, unsigned long action, void *hcpu) case CPU_DOWN_PREPARE_FROZEN: case CPU_DEAD: case CPU_DEAD_FROZEN: - hotplug_hrtick_disable(cpu); - return NOTIFY_OK; - - case CPU_UP_PREPARE: - case CPU_UP_PREPARE_FROZEN: - case CPU_DOWN_FAILED: - case CPU_DOWN_FAILED_FROZEN: - case CPU_ONLINE: - case CPU_ONLINE_FROZEN: - hotplug_hrtick_enable(cpu); + hrtick_clear(cpu_rq(cpu)); return NOTIFY_OK; } @@ -1170,46 +1092,45 @@ static void init_hrtick(void) { hotcpu_notifier(hotplug_hrtick, 0); } -#endif /* CONFIG_SMP */ +#else +/* + * Called to set the hrtick timer state. + * + * called with rq->lock held and irqs disabled + */ +static void hrtick_start(struct rq *rq, u64 delay) +{ + hrtimer_start(&rq->hrtick_timer, ns_to_ktime(delay), HRTIMER_MODE_REL); +} -static void init_rq_hrtick(struct rq *rq) +static void init_hrtick(void) { - rq->hrtick_flags = 0; - hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - rq->hrtick_timer.function = hrtick; - rq->hrtick_timer.cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ; } +#endif /* CONFIG_SMP */ -void hrtick_resched(void) +static void init_rq_hrtick(struct rq *rq) { - struct rq *rq; - unsigned long flags; +#ifdef CONFIG_SMP + rq->hrtick_csd_pending = 0; - if (!test_thread_flag(TIF_HRTICK_RESCHED)) - return; + rq->hrtick_csd.flags = 0; + rq->hrtick_csd.func = __hrtick_start; + rq->hrtick_csd.info = rq; +#endif - local_irq_save(flags); - rq = cpu_rq(smp_processor_id()); - hrtick_set(rq); - local_irq_restore(flags); + hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + rq->hrtick_timer.function = hrtick; + rq->hrtick_timer.cb_mode = HRTIMER_CB_IRQSAFE_NO_SOFTIRQ; } #else static inline void hrtick_clear(struct rq *rq) { } -static inline void hrtick_set(struct rq *rq) -{ -} - static inline void init_rq_hrtick(struct rq *rq) { } -void hrtick_resched(void) -{ -} - static inline void init_hrtick(void) { } @@ -1228,16 +1149,16 @@ static inline void init_hrtick(void) #define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) #endif -static void __resched_task(struct task_struct *p, int tif_bit) +static void resched_task(struct task_struct *p) { int cpu; assert_spin_locked(&task_rq(p)->lock); - if (unlikely(test_tsk_thread_flag(p, tif_bit))) + if (unlikely(test_tsk_thread_flag(p, TIF_NEED_RESCHED))) return; - set_tsk_thread_flag(p, tif_bit); + set_tsk_thread_flag(p, TIF_NEED_RESCHED); cpu = task_cpu(p); if (cpu == smp_processor_id()) @@ -1303,10 +1224,10 @@ void wake_up_idle_cpu(int cpu) #endif /* CONFIG_NO_HZ */ #else /* !CONFIG_SMP */ -static void __resched_task(struct task_struct *p, int tif_bit) +static void resched_task(struct task_struct *p) { assert_spin_locked(&task_rq(p)->lock); - set_tsk_thread_flag(p, tif_bit); + set_tsk_need_resched(p); } #endif /* CONFIG_SMP */ @@ -4395,7 +4316,7 @@ asmlinkage void __sched schedule(void) struct task_struct *prev, *next; unsigned long *switch_count; struct rq *rq; - int cpu, hrtick = sched_feat(HRTICK); + int cpu; need_resched: preempt_disable(); @@ -4410,7 +4331,7 @@ need_resched_nonpreemptible: schedule_debug(prev); - if (hrtick) + if (sched_feat(HRTICK)) hrtick_clear(rq); /* @@ -4457,9 +4378,6 @@ need_resched_nonpreemptible: } else spin_unlock_irq(&rq->lock); - if (hrtick) - hrtick_set(rq); - if (unlikely(reacquire_kernel_lock(current) < 0)) goto need_resched_nonpreemptible; diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index f2aa987027d6..6893b3ed65fe 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -878,7 +878,6 @@ entity_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr, int queued) #ifdef CONFIG_SCHED_HRTICK static void hrtick_start_fair(struct rq *rq, struct task_struct *p) { - int requeue = rq->curr == p; struct sched_entity *se = &p->se; struct cfs_rq *cfs_rq = cfs_rq_of(se); @@ -899,10 +898,10 @@ static void hrtick_start_fair(struct rq *rq, struct task_struct *p) * Don't schedule slices shorter than 10000ns, that just * doesn't make sense. Rely on vruntime for fairness. */ - if (!requeue) + if (rq->curr != p) delta = max(10000LL, delta); - hrtick_start(rq, delta, requeue); + hrtick_start(rq, delta); } } #else /* !CONFIG_SCHED_HRTICK */ -- cgit v1.2.3 From 8fa8b9fbab90c74139e8e868fe5b30b6a9f6be65 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sun, 20 Jul 2008 15:00:32 +0400 Subject: Cris: convert to using generic dma-coherent mem allocator Signed-off-by: Dmitry Baryshkov Cc: Jesse Barnes Cc: Jesper Nilsson Signed-off-by: Ingo Molnar --- arch/cris/arch-v32/drivers/Kconfig | 1 + arch/cris/arch-v32/drivers/pci/dma.c | 106 +---------------------------------- include/asm-cris/dma-mapping.h | 2 + 3 files changed, 6 insertions(+), 103 deletions(-) (limited to 'include') diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig index 2a92cb1886ca..7a64fcef9d07 100644 --- a/arch/cris/arch-v32/drivers/Kconfig +++ b/arch/cris/arch-v32/drivers/Kconfig @@ -641,6 +641,7 @@ config PCI bool depends on ETRAX_CARDBUS default y + select HAVE_GENERIC_DMA_COHERENT config ETRAX_IOP_FW_LOAD tristate "IO-processor hotplug firmware loading support" diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c index e0364654fc44..fbe65954ee6c 100644 --- a/arch/cris/arch-v32/drivers/pci/dma.c +++ b/arch/cris/arch-v32/drivers/pci/dma.c @@ -15,35 +15,16 @@ #include #include -struct dma_coherent_mem { - void *virt_base; - u32 device_base; - int size; - int flags; - unsigned long *bitmap; -}; - void *dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp) { void *ret; - struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; int order = get_order(size); /* ignore region specifiers */ gfp &= ~(__GFP_DMA | __GFP_HIGHMEM); - if (mem) { - int page = bitmap_find_free_region(mem->bitmap, mem->size, - order); - if (page >= 0) { - *dma_handle = mem->device_base + (page << PAGE_SHIFT); - ret = mem->virt_base + (page << PAGE_SHIFT); - memset(ret, 0, size); - return ret; - } - if (mem->flags & DMA_MEMORY_EXCLUSIVE) - return NULL; - } + if (dma_alloc_from_coherent(dev, size, dma_handle, &ret)) + return ret; if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff)) gfp |= GFP_DMA; @@ -60,90 +41,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size, void dma_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle) { - struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; int order = get_order(size); - if (mem && vaddr >= mem->virt_base && vaddr < (mem->virt_base + (mem->size << PAGE_SHIFT))) { - int page = (vaddr - mem->virt_base) >> PAGE_SHIFT; - - bitmap_release_region(mem->bitmap, page, order); - } else + if (!dma_release_from_coherent(dev, order, vaddr)) free_pages((unsigned long)vaddr, order); } -int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, - dma_addr_t device_addr, size_t size, int flags) -{ - void __iomem *mem_base; - int pages = size >> PAGE_SHIFT; - int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long); - - if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0) - goto out; - if (!size) - goto out; - if (dev->dma_mem) - goto out; - - /* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */ - - mem_base = ioremap(bus_addr, size); - if (!mem_base) - goto out; - - dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL); - if (!dev->dma_mem) - goto iounmap_out; - dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL); - if (!dev->dma_mem->bitmap) - goto free1_out; - - dev->dma_mem->virt_base = mem_base; - dev->dma_mem->device_base = device_addr; - dev->dma_mem->size = pages; - dev->dma_mem->flags = flags; - - if (flags & DMA_MEMORY_MAP) - return DMA_MEMORY_MAP; - - return DMA_MEMORY_IO; - - free1_out: - kfree(dev->dma_mem); - iounmap_out: - iounmap(mem_base); - out: - return 0; -} -EXPORT_SYMBOL(dma_declare_coherent_memory); - -void dma_release_declared_memory(struct device *dev) -{ - struct dma_coherent_mem *mem = dev->dma_mem; - - if(!mem) - return; - dev->dma_mem = NULL; - iounmap(mem->virt_base); - kfree(mem->bitmap); - kfree(mem); -} -EXPORT_SYMBOL(dma_release_declared_memory); - -void *dma_mark_declared_memory_occupied(struct device *dev, - dma_addr_t device_addr, size_t size) -{ - struct dma_coherent_mem *mem = dev->dma_mem; - int pages = (size + (device_addr & ~PAGE_MASK) + PAGE_SIZE - 1) >> PAGE_SHIFT; - int pos, err; - - if (!mem) - return ERR_PTR(-EINVAL); - - pos = (device_addr - mem->device_base) >> PAGE_SHIFT; - err = bitmap_allocate_region(mem->bitmap, pos, get_order(pages)); - if (err != 0) - return ERR_PTR(err); - return mem->virt_base + (pos << PAGE_SHIFT); -} -EXPORT_SYMBOL(dma_mark_declared_memory_occupied); diff --git a/include/asm-cris/dma-mapping.h b/include/asm-cris/dma-mapping.h index edc8d1bfaae2..4f58670caad5 100644 --- a/include/asm-cris/dma-mapping.h +++ b/include/asm-cris/dma-mapping.h @@ -14,6 +14,8 @@ #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) #ifdef CONFIG_PCI +#include + void *dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag); -- cgit v1.2.3 From f233ea5c9e0d8b95e4283bf6a3436b88f6fd3586 Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Mon, 21 Jul 2008 17:05:22 +1000 Subject: md: Make mddev->array_size sector-based. This patch renames the array_size field of struct mddev_s to array_sectors and converts all instances to use units of 512 byte sectors instead of 1k blocks. Signed-off-by: Andre Noll Signed-off-by: NeilBrown --- drivers/md/faulty.c | 2 +- drivers/md/linear.c | 6 +++--- drivers/md/md.c | 12 +++++++----- drivers/md/multipath.c | 2 +- drivers/md/raid0.c | 8 ++++---- drivers/md/raid1.c | 11 ++++++----- drivers/md/raid10.c | 2 +- drivers/md/raid5.c | 16 +++++++++------- include/linux/raid/md_k.h | 2 +- 9 files changed, 33 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index d107ddceefcd..268547dbfbd3 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -297,7 +297,7 @@ static int run(mddev_t *mddev) rdev_for_each(rdev, tmp, mddev) conf->rdev = rdev; - mddev->array_size = mddev->size; + mddev->array_sectors = mddev->size * 2; mddev->private = conf; reconfig(mddev, mddev->layout, -1); diff --git a/drivers/md/linear.c b/drivers/md/linear.c index ec921f58fbb8..57644a780f16 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -256,7 +256,7 @@ static int linear_run (mddev_t *mddev) if (!conf) return 1; mddev->private = conf; - mddev->array_size = conf->array_size; + mddev->array_sectors = conf->array_size * 2; blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec); mddev->queue->unplug_fn = linear_unplug; @@ -290,8 +290,8 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev) newconf->prev = mddev_to_conf(mddev); mddev->private = newconf; mddev->raid_disks++; - mddev->array_size = newconf->array_size; - set_capacity(mddev->gendisk, mddev->array_size << 1); + mddev->array_sectors = newconf->array_size * 2; + set_capacity(mddev->gendisk, mddev->array_sectors); return 0; } diff --git a/drivers/md/md.c b/drivers/md/md.c index df13a17a9627..4bfbc1982cda 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3704,7 +3704,7 @@ static int do_md_run(mddev_t * mddev) if (mddev->flags) md_update_sb(mddev, 0); - set_capacity(disk, mddev->array_size<<1); + set_capacity(disk, mddev->array_sectors); /* If we call blk_queue_make_request here, it will * re-initialise max_sectors etc which may have been @@ -3905,7 +3905,7 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) export_array(mddev); - mddev->array_size = 0; + mddev->array_sectors = 0; mddev->size = 0; mddev->raid_disks = 0; mddev->recovery_cp = 0; @@ -4644,7 +4644,8 @@ static int update_size(mddev_t *mddev, sector_t num_sectors) bdev = bdget_disk(mddev->gendisk, 0); if (bdev) { mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, (loff_t)mddev->array_size << 10); + i_size_write(bdev->bd_inode, + (loff_t)mddev->array_sectors << 9); mutex_unlock(&bdev->bd_inode->i_mutex); bdput(bdev); } @@ -5391,10 +5392,11 @@ static int md_seq_show(struct seq_file *seq, void *v) if (!list_empty(&mddev->disks)) { if (mddev->pers) seq_printf(seq, "\n %llu blocks", - (unsigned long long)mddev->array_size); + (unsigned long long) + mddev->array_sectors / 2); else seq_printf(seq, "\n %llu blocks", - (unsigned long long)size); + (unsigned long long)size); } if (mddev->persistent) { if (mddev->major_version != 0 || diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 541cbe3414bd..c4779ccba1c3 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -504,7 +504,7 @@ static int multipath_run (mddev_t *mddev) /* * Ok, everything is just fine now */ - mddev->array_size = mddev->size; + mddev->array_sectors = mddev->size * 2; mddev->queue->unplug_fn = multipath_unplug; mddev->queue->backing_dev_info.congested_fn = multipath_congested; diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 914c04ddec7c..2f30ebd8b7ab 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -293,16 +293,16 @@ static int raid0_run (mddev_t *mddev) goto out_free_conf; /* calculate array device size */ - mddev->array_size = 0; + mddev->array_sectors = 0; rdev_for_each(rdev, tmp, mddev) - mddev->array_size += rdev->size; + mddev->array_sectors += rdev->size * 2; printk("raid0 : md_size is %llu blocks.\n", - (unsigned long long)mddev->array_size); + (unsigned long long)mddev->array_sectors / 2); printk("raid0 : conf->hash_spacing is %llu blocks.\n", (unsigned long long)conf->hash_spacing); { - sector_t s = mddev->array_size; + sector_t s = mddev->array_sectors / 2; sector_t space = conf->hash_spacing; int round; conf->preshift = 0; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 491dc2d4ad5f..03a5ab705c20 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2043,7 +2043,7 @@ static int run(mddev_t *mddev) /* * Ok, everything is just fine now */ - mddev->array_size = mddev->size; + mddev->array_sectors = mddev->size * 2; mddev->queue->unplug_fn = raid1_unplug; mddev->queue->backing_dev_info.congested_fn = raid1_congested; @@ -2105,14 +2105,15 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors) * any io in the removed space completes, but it hardly seems * worth it. */ - mddev->array_size = sectors>>1; - set_capacity(mddev->gendisk, mddev->array_size << 1); + mddev->array_sectors = sectors; + set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; - if (mddev->array_size > mddev->size && mddev->recovery_cp == MaxSector) { + if (mddev->array_sectors / 2 > mddev->size && + mddev->recovery_cp == MaxSector) { mddev->recovery_cp = mddev->size << 1; set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); } - mddev->size = mddev->array_size; + mddev->size = mddev->array_sectors / 2; mddev->resync_max_sectors = sectors; return 0; } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index df08a9fa3a1f..2acea4025243 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2164,7 +2164,7 @@ static int run(mddev_t *mddev) /* * Ok, everything is just fine now */ - mddev->array_size = size << (conf->chunk_shift-1); + mddev->array_sectors = size << conf->chunk_shift; mddev->resync_max_sectors = size << conf->chunk_shift; mddev->queue->unplug_fn = raid10_unplug; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 8f4c70a53210..42a480ba767b 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3540,7 +3540,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped j == raid6_next_disk(sh->pd_idx, sh->disks)) continue; s = compute_blocknr(sh, j); - if (s < (mddev->array_size<<1)) { + if (s < mddev->array_sectors) { skipped = 1; continue; } @@ -4189,7 +4189,7 @@ static int run(mddev_t *mddev) mddev->queue->backing_dev_info.congested_data = mddev; mddev->queue->backing_dev_info.congested_fn = raid5_congested; - mddev->array_size = mddev->size * (conf->previous_raid_disks - + mddev->array_sectors = 2 * mddev->size * (conf->previous_raid_disks - conf->max_degraded); blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec); @@ -4413,8 +4413,9 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors) raid5_conf_t *conf = mddev_to_conf(mddev); sectors &= ~((sector_t)mddev->chunk_size/512 - 1); - mddev->array_size = (sectors * (mddev->raid_disks-conf->max_degraded))>>1; - set_capacity(mddev->gendisk, mddev->array_size << 1); + mddev->array_sectors = sectors * (mddev->raid_disks + - conf->max_degraded); + set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; if (sectors/2 > mddev->size && mddev->recovery_cp == MaxSector) { mddev->recovery_cp = mddev->size << 1; @@ -4547,15 +4548,16 @@ static void end_reshape(raid5_conf_t *conf) struct block_device *bdev; if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) { - conf->mddev->array_size = conf->mddev->size * + conf->mddev->array_sectors = 2 * conf->mddev->size * (conf->raid_disks - conf->max_degraded); - set_capacity(conf->mddev->gendisk, conf->mddev->array_size << 1); + set_capacity(conf->mddev->gendisk, conf->mddev->array_sectors); conf->mddev->changed = 1; bdev = bdget_disk(conf->mddev->gendisk, 0); if (bdev) { mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, (loff_t)conf->mddev->array_size << 10); + i_size_write(bdev->bd_inode, + (loff_t)conf->mddev->array_sectors << 9); mutex_unlock(&bdev->bd_inode->i_mutex); bdput(bdev); } diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index e37aaa41efc6..6f72b47ae41c 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -150,7 +150,7 @@ struct mddev_s int raid_disks; int max_disks; sector_t size; /* used size of component devices */ - sector_t array_size; /* exported array size */ + sector_t array_sectors; /* exported array size */ __u64 events; char uuid[16]; -- cgit v1.2.3 From d6e2215052810678bc9782fd980b52706fc71f50 Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Mon, 21 Jul 2008 17:05:25 +1000 Subject: md: linear: Make array_size sector-based and rename it to array_sectors. Signed-off-by: Andre Noll Signed-off-by: NeilBrown --- drivers/md/linear.c | 16 ++++++++-------- include/linux/raid/linear.h | 2 +- 2 files changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 57644a780f16..1cafaa959443 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -120,7 +120,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) return NULL; cnt = 0; - conf->array_size = 0; + conf->array_sectors = 0; rdev_for_each(rdev, tmp, mddev) { int j = rdev->raid_disk; @@ -144,7 +144,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); disk->size = rdev->size; - conf->array_size += rdev->size; + conf->array_sectors += rdev->size * 2; cnt++; } @@ -153,7 +153,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) goto out; } - min_spacing = conf->array_size; + min_spacing = conf->array_sectors / 2; sector_div(min_spacing, PAGE_SIZE/sizeof(struct dev_info *)); /* min_spacing is the minimum spacing that will fit the hash @@ -162,7 +162,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) * that is larger than min_spacing as use the size of that as * the actual spacing */ - conf->hash_spacing = conf->array_size; + conf->hash_spacing = conf->array_sectors / 2; for (i=0; i < cnt-1 ; i++) { sector_t sz = 0; int j; @@ -192,7 +192,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) unsigned round; unsigned long base; - sz = conf->array_size >> conf->preshift; + sz = conf->array_sectors >> (conf->preshift + 1); sz += 1; /* force round-up */ base = conf->hash_spacing >> conf->preshift; round = sector_div(sz, base); @@ -219,7 +219,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) curr_offset = 0; i = 0; for (curr_offset = 0; - curr_offset < conf->array_size; + curr_offset < conf->array_sectors / 2; curr_offset += conf->hash_spacing) { while (i < raid_disks-1 && @@ -256,7 +256,7 @@ static int linear_run (mddev_t *mddev) if (!conf) return 1; mddev->private = conf; - mddev->array_sectors = conf->array_size * 2; + mddev->array_sectors = conf->array_sectors; blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec); mddev->queue->unplug_fn = linear_unplug; @@ -290,7 +290,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev) newconf->prev = mddev_to_conf(mddev); mddev->private = newconf; mddev->raid_disks++; - mddev->array_sectors = newconf->array_size * 2; + mddev->array_sectors = newconf->array_sectors; set_capacity(mddev->gendisk, mddev->array_sectors); return 0; } diff --git a/include/linux/raid/linear.h b/include/linux/raid/linear.h index ba15469daf11..7e375111d007 100644 --- a/include/linux/raid/linear.h +++ b/include/linux/raid/linear.h @@ -16,7 +16,7 @@ struct linear_private_data struct linear_private_data *prev; /* earlier version */ dev_info_t **hash_table; sector_t hash_spacing; - sector_t array_size; + sector_t array_sectors; int preshift; /* shift before dividing by hash_spacing */ dev_info_t disks[0]; }; -- cgit v1.2.3 From f2ea68cf42aafdd93393b6b8b20fc3c2b5f4390c Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 21 Jul 2008 17:05:25 +1000 Subject: md: only count actual openers as access which prevent a 'stop' Open isn't the only thing that increments ->active. e.g. reading /proc/mdstat will increment it briefly. So to avoid false positives in testing for concurrent access, introduce a new counter that counts just the number of times the md device it open. Signed-off-by: NeilBrown --- drivers/md/md.c | 9 ++++++--- include/linux/raid/md_k.h | 3 ++- 2 files changed, 8 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/md/md.c b/drivers/md/md.c index 4bfbc1982cda..450f30b6edf9 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -273,6 +273,7 @@ static mddev_t * mddev_find(dev_t unit) INIT_LIST_HEAD(&new->all_mddevs); init_timer(&new->safemode_timer); atomic_set(&new->active, 1); + atomic_set(&new->openers, 0); spin_lock_init(&new->write_lock); init_waitqueue_head(&new->sb_wait); init_waitqueue_head(&new->recovery_wait); @@ -2695,14 +2696,14 @@ array_state_store(mddev_t *mddev, const char *buf, size_t len) break; case clear: /* stopping an active array */ - if (atomic_read(&mddev->active) > 1) + if (atomic_read(&mddev->openers) > 0) return -EBUSY; err = do_md_stop(mddev, 0, 0); break; case inactive: /* stopping an active array */ if (mddev->pers) { - if (atomic_read(&mddev->active) > 1) + if (atomic_read(&mddev->openers) > 0) return -EBUSY; err = do_md_stop(mddev, 2, 0); } else @@ -3816,7 +3817,7 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) int err = 0; struct gendisk *disk = mddev->gendisk; - if (atomic_read(&mddev->active) > 1 + is_open) { + if (atomic_read(&mddev->openers) > is_open) { printk("md: %s still in use.\n",mdname(mddev)); return -EBUSY; } @@ -5014,6 +5015,7 @@ static int md_open(struct inode *inode, struct file *file) err = 0; mddev_get(mddev); + atomic_inc(&mddev->openers); mddev_unlock(mddev); check_disk_change(inode->i_bdev); @@ -5026,6 +5028,7 @@ static int md_release(struct inode *inode, struct file * file) mddev_t *mddev = inode->i_bdev->bd_disk->private_data; BUG_ON(!mddev); + atomic_dec(&mddev->openers); mddev_put(mddev); return 0; diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 6f72b47ae41c..4bef4791d80d 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -215,7 +215,8 @@ struct mddev_s int in_sync; /* know to not need resync */ struct mutex reconfig_mutex; - atomic_t active; + atomic_t active; /* general refcount */ + atomic_t openers; /* number of active opens */ int changed; /* true if we might need to reread partition info */ int degraded; /* whether md should consider -- cgit v1.2.3 From 4b80991c6cb9efa607bc4fd6f3ecdf5511c31bb0 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 21 Jul 2008 17:05:25 +1000 Subject: md: Protect access to mddev->disks list using RCU All modifications and most access to the mddev->disks list are made under the reconfig_mutex lock. However there are three places where the list is walked without any locking. If a reconfig happens at this time, havoc (and oops) can ensue. So use RCU to protect these accesses: - wrap them in rcu_read_{,un}lock() - use list_for_each_entry_rcu - add to the list with list_add_rcu - delete from the list with list_del_rcu - delay the 'free' with call_rcu rather than schedule_work Note that export_rdev did a list_del_init on this list. In almost all cases the entry was not in the list anymore so it was a no-op and so safe. It is no longer safe as after list_del_rcu we may not touch the list_head. An audit shows that export_rdev is called: - after unbind_rdev_from_array, in which case the delete has already been done, - after bind_rdev_to_array fails, in which case the delete isn't needed. - before the device has been put on a list at all (e.g. in add_new_disk where reading the superblock fails). - and in autorun devices after a failure when the device is on a different list. So remove the list_del_init call from export_rdev, and add it back immediately before the called to export_rdev for that last case. Note also that ->same_set is sometimes used for lists other than mddev->list (e.g. candidates). In these cases rcu is not needed. Signed-off-by: NeilBrown --- drivers/md/bitmap.c | 15 ++++++++++----- drivers/md/md.c | 30 ++++++++++++++++++------------ include/linux/raid/md_k.h | 3 +++ 3 files changed, 31 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index eba83e25b678..621a272a2c74 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -241,10 +241,10 @@ static struct page *read_sb_page(mddev_t *mddev, long offset, unsigned long inde static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) { mdk_rdev_t *rdev; - struct list_head *tmp; mddev_t *mddev = bitmap->mddev; - rdev_for_each(rdev, tmp, mddev) + rcu_read_lock(); + rdev_for_each_rcu(rdev, mddev) if (test_bit(In_sync, &rdev->flags) && !test_bit(Faulty, &rdev->flags)) { int size = PAGE_SIZE; @@ -260,11 +260,11 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) + (long)(page->index * (PAGE_SIZE/512)) + size/512 > 0) /* bitmap runs in to metadata */ - return -EINVAL; + goto bad_alignment; if (rdev->data_offset + mddev->size*2 > rdev->sb_start + bitmap->offset) /* data runs in to bitmap */ - return -EINVAL; + goto bad_alignment; } else if (rdev->sb_start < rdev->data_offset) { /* METADATA BITMAP DATA */ if (rdev->sb_start @@ -272,7 +272,7 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) + page->index*(PAGE_SIZE/512) + size/512 > rdev->data_offset) /* bitmap runs in to data */ - return -EINVAL; + goto bad_alignment; } else { /* DATA METADATA BITMAP - no problems */ } @@ -282,10 +282,15 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) size, page); } + rcu_read_unlock(); if (wait) md_super_wait(mddev); return 0; + + bad_alignment: + rcu_read_unlock(); + return -EINVAL; } static void bitmap_file_kick(struct bitmap *bitmap); diff --git a/drivers/md/md.c b/drivers/md/md.c index 450f30b6edf9..c2ff77ccec50 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1395,15 +1395,17 @@ static struct super_type super_types[] = { static int match_mddev_units(mddev_t *mddev1, mddev_t *mddev2) { - struct list_head *tmp, *tmp2; mdk_rdev_t *rdev, *rdev2; - rdev_for_each(rdev, tmp, mddev1) - rdev_for_each(rdev2, tmp2, mddev2) + rcu_read_lock(); + rdev_for_each_rcu(rdev, mddev1) + rdev_for_each_rcu(rdev2, mddev2) if (rdev->bdev->bd_contains == - rdev2->bdev->bd_contains) + rdev2->bdev->bd_contains) { + rcu_read_unlock(); return 1; - + } + rcu_read_unlock(); return 0; } @@ -1470,7 +1472,7 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev) kobject_del(&rdev->kobj); goto fail; } - list_add(&rdev->same_set, &mddev->disks); + list_add_rcu(&rdev->same_set, &mddev->disks); bd_claim_by_disk(rdev->bdev, rdev->bdev->bd_holder, mddev->gendisk); return 0; @@ -1495,14 +1497,16 @@ static void unbind_rdev_from_array(mdk_rdev_t * rdev) return; } bd_release_from_disk(rdev->bdev, rdev->mddev->gendisk); - list_del_init(&rdev->same_set); + list_del_rcu(&rdev->same_set); printk(KERN_INFO "md: unbind<%s>\n", bdevname(rdev->bdev,b)); rdev->mddev = NULL; sysfs_remove_link(&rdev->kobj, "block"); /* We need to delay this, otherwise we can deadlock when - * writing to 'remove' to "dev/state" + * writing to 'remove' to "dev/state". We also need + * to delay it due to rcu usage. */ + synchronize_rcu(); INIT_WORK(&rdev->del_work, md_delayed_delete); kobject_get(&rdev->kobj); schedule_work(&rdev->del_work); @@ -1558,7 +1562,6 @@ static void export_rdev(mdk_rdev_t * rdev) if (rdev->mddev) MD_BUG(); free_disk_sb(rdev); - list_del_init(&rdev->same_set); #ifndef MODULE if (test_bit(AutoDetected, &rdev->flags)) md_autodetect_dev(rdev->bdev->bd_dev); @@ -4062,8 +4065,10 @@ static void autorun_devices(int part) /* on success, candidates will be empty, on error * it won't... */ - rdev_for_each_list(rdev, tmp, candidates) + rdev_for_each_list(rdev, tmp, candidates) { + list_del_init(&rdev->same_set); export_rdev(rdev); + } mddev_put(mddev); } printk(KERN_INFO "md: ... autorun DONE.\n"); @@ -5529,12 +5534,12 @@ int unregister_md_personality(struct mdk_personality *p) static int is_mddev_idle(mddev_t *mddev) { mdk_rdev_t * rdev; - struct list_head *tmp; int idle; long curr_events; idle = 1; - rdev_for_each(rdev, tmp, mddev) { + rcu_read_lock(); + rdev_for_each_rcu(rdev, mddev) { struct gendisk *disk = rdev->bdev->bd_contains->bd_disk; curr_events = disk_stat_read(disk, sectors[0]) + disk_stat_read(disk, sectors[1]) - @@ -5566,6 +5571,7 @@ static int is_mddev_idle(mddev_t *mddev) idle = 0; } } + rcu_read_unlock(); return idle; } diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 4bef4791d80d..9f2549ac0e2d 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -339,6 +339,9 @@ static inline char * mdname (mddev_t * mddev) #define rdev_for_each(rdev, tmp, mddev) \ rdev_for_each_list(rdev, tmp, (mddev)->disks) +#define rdev_for_each_rcu(rdev, mddev) \ + list_for_each_entry_rcu(rdev, &((mddev)->disks), same_set) + typedef struct mdk_thread_s { void (*run) (mddev_t *mddev); mddev_t *mddev; -- cgit v1.2.3 From 33a37eb411d193851c334060780ab834ba534292 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 21 Jul 2008 10:57:15 +0200 Subject: KVM: fix exception entry / build bug, on 64-bit -tip testing found this build bug: arch/x86/kvm/built-in.o:(.text.fixup+0x1): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0xb): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0x15): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0x1f): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0x29): relocation truncated to fit: R_X86_64_32 against `.text' Introduced by commit 4ecac3fd. The problem is that 'push' will default to 32-bit, which is not wide enough as a fixup address. (and which would crash on any real fixup event even if it was wide enough) Introduce KVM_EX_PUSH to get the proper address push width on 64-bit too. Signed-off-by: Ingo Molnar --- include/asm-x86/kvm_host.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index f995783b1fdb..fdde0bedaa90 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -703,9 +703,11 @@ enum { vcpu, 0, 0, 0, 0, 0, 0) #ifdef CONFIG_64BIT -#define KVM_EX_ENTRY ".quad" +# define KVM_EX_ENTRY ".quad" +# define KVM_EX_PUSH "pushq" #else -#define KVM_EX_ENTRY ".long" +# define KVM_EX_ENTRY ".long" +# define KVM_EX_PUSH "pushl" #endif /* @@ -719,7 +721,7 @@ asmlinkage void kvm_handle_fault_on_reboot(void); "666: " insn "\n\t" \ ".pushsection .text.fixup, \"ax\" \n" \ "667: \n\t" \ - "push $666b \n\t" \ + KVM_EX_PUSH " $666b \n\t" \ "jmp kvm_handle_fault_on_reboot \n\t" \ ".popsection \n\t" \ ".pushsection __ex_table, \"a\" \n\t" \ -- cgit v1.2.3 From f6fccb1213ba3d661baeb2a5eee0a9701dc03e1b Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Mon, 21 Jul 2008 12:00:37 +0100 Subject: dm: introduce merge_bvec_fn Introduce a bvec merge function for device mapper devices for dynamic size restrictions. This code ensures the requested biovec lies within a single target and then calls a target-specific function to check against any constraints imposed by underlying devices. Signed-off-by: Milan Broz Signed-off-by: Alasdair G Kergon --- drivers/md/dm.c | 44 +++++++++++++++++++++++++++++++++++++++++++ include/linux/device-mapper.h | 6 ++++++ include/linux/dm-ioctl.h | 4 ++-- 3 files changed, 52 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index efe969074928..bca448e11878 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -829,6 +829,49 @@ static int __split_bio(struct mapped_device *md, struct bio *bio) * CRUD END *---------------------------------------------------------------*/ +static int dm_merge_bvec(struct request_queue *q, + struct bvec_merge_data *bvm, + struct bio_vec *biovec) +{ + struct mapped_device *md = q->queuedata; + struct dm_table *map = dm_get_table(md); + struct dm_target *ti; + sector_t max_sectors; + int max_size; + + if (unlikely(!map)) + return 0; + + ti = dm_table_find_target(map, bvm->bi_sector); + + /* + * Find maximum amount of I/O that won't need splitting + */ + max_sectors = min(max_io_len(md, bvm->bi_sector, ti), + (sector_t) BIO_MAX_SECTORS); + max_size = (max_sectors << SECTOR_SHIFT) - bvm->bi_size; + if (max_size < 0) + max_size = 0; + + /* + * merge_bvec_fn() returns number of bytes + * it can accept at this offset + * max is precomputed maximal io size + */ + if (max_size && ti->type->merge) + max_size = ti->type->merge(ti, bvm, biovec, max_size); + + /* + * Always allow an entire first page + */ + if (max_size <= biovec->bv_len && !(bvm->bi_size >> SECTOR_SHIFT)) + max_size = biovec->bv_len; + + dm_table_put(map); + + return max_size; +} + /* * The request function that just remaps the bio built up by * dm_merge_bvec. @@ -1032,6 +1075,7 @@ static struct mapped_device *alloc_dev(int minor) blk_queue_make_request(md->queue, dm_request); blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY); md->queue->unplug_fn = dm_unplug_all; + blk_queue_merge_bvec(md->queue, dm_merge_bvec); md->io_pool = mempool_create_slab_pool(MIN_IOS, _io_cache); if (!md->io_pool) diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 0d8d419d191a..a90222e3297d 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -9,11 +9,13 @@ #define _LINUX_DEVICE_MAPPER_H #include +#include struct dm_target; struct dm_table; struct dm_dev; struct mapped_device; +struct bio_vec; typedef enum { STATUSTYPE_INFO, STATUSTYPE_TABLE } status_type_t; @@ -72,6 +74,9 @@ typedef int (*dm_ioctl_fn) (struct dm_target *ti, struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +typedef int (*dm_merge_fn) (struct dm_target *ti, struct bvec_merge_data *bvm, + struct bio_vec *biovec, int max_size); + void dm_error(const char *message); /* @@ -107,6 +112,7 @@ struct target_type { dm_status_fn status; dm_message_fn message; dm_ioctl_fn ioctl; + dm_merge_fn merge; }; struct io_restrictions { diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h index b03c41bbfa14..28c2940eb30d 100644 --- a/include/linux/dm-ioctl.h +++ b/include/linux/dm-ioctl.h @@ -256,9 +256,9 @@ enum { #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 13 +#define DM_VERSION_MINOR 14 #define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2007-10-18)" +#define DM_VERSION_EXTRA "-ioctl (2008-04-23)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ -- cgit v1.2.3 From 07a7c1070ed382ad4562e3a0d453fd2001d92f7b Mon Sep 17 00:00:00 2001 From: Krzysztof Piotr Oledzki Date: Mon, 21 Jul 2008 10:01:14 -0700 Subject: netlink: add NLA_PUT_BE64 macro Add NLA_PUT_BE64 macro required for 64bit counters in netfilter Signed-off-by: Krzysztof Piotr Oledzki Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/net/netlink.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/net/netlink.h b/include/net/netlink.h index dfc3701dfcc3..18024b8cecb8 100644 --- a/include/net/netlink.h +++ b/include/net/netlink.h @@ -896,6 +896,9 @@ static inline int nla_put_msecs(struct sk_buff *skb, int attrtype, #define NLA_PUT_U64(skb, attrtype, value) \ NLA_PUT_TYPE(skb, u64, attrtype, value) +#define NLA_PUT_BE64(skb, attrtype, value) \ + NLA_PUT_TYPE(skb, __be64, attrtype, value) + #define NLA_PUT_STRING(skb, attrtype, value) \ NLA_PUT(skb, attrtype, strlen(value) + 1, value) -- cgit v1.2.3 From 584015727a3b88b46602b20077b46cd04f8b4ab3 Mon Sep 17 00:00:00 2001 From: Krzysztof Piotr Oledzki Date: Mon, 21 Jul 2008 10:01:34 -0700 Subject: netfilter: accounting rework: ct_extend + 64bit counters (v4) Initially netfilter has had 64bit counters for conntrack-based accounting, but it was changed in 2.6.14 to save memory. Unfortunately in-kernel 64bit counters are still required, for example for "connbytes" extension. However, 64bit counters waste a lot of memory and it was not possible to enable/disable it runtime. This patch: - reimplements accounting with respect to the extension infrastructure, - makes one global version of seq_print_acct() instead of two seq_print_counters(), - makes it possible to enable it at boot time (for CONFIG_SYSCTL/CONFIG_SYSFS=n), - makes it possible to enable/disable it at runtime by sysctl or sysfs, - extends counters from 32bit to 64bit, - renames ip_conntrack_counter -> nf_conn_counter, - enables accounting code unconditionally (no longer depends on CONFIG_NF_CT_ACCT), - set initial accounting enable state based on CONFIG_NF_CT_ACCT - removes buggy IPCT_COUNTER_FILLING event handling. If accounting is enabled newly created connections get additional acct extend. Old connections are not changed as it is not possible to add a ct_extend area to confirmed conntrack. Accounting is performed for all connections with acct extend regardless of a current state of "net.netfilter.nf_conntrack_acct". Signed-off-by: Krzysztof Piotr Oledzki Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- Documentation/feature-removal-schedule.txt | 10 ++ Documentation/kernel-parameters.txt | 7 ++ include/linux/netfilter/nf_conntrack_common.h | 8 +- include/linux/netfilter/nfnetlink_conntrack.h | 8 +- include/net/netfilter/nf_conntrack.h | 6 -- include/net/netfilter/nf_conntrack_acct.h | 51 ++++++++++ include/net/netfilter/nf_conntrack_extend.h | 2 + .../netfilter/nf_conntrack_l3proto_ipv4_compat.c | 18 +--- net/netfilter/Kconfig | 9 ++ net/netfilter/Makefile | 2 +- net/netfilter/nf_conntrack_acct.c | 104 +++++++++++++++++++++ net/netfilter/nf_conntrack_core.c | 39 +++++--- net/netfilter/nf_conntrack_netlink.c | 44 +++++---- net/netfilter/nf_conntrack_standalone.c | 18 +--- net/netfilter/xt_connbytes.c | 8 +- 15 files changed, 248 insertions(+), 86 deletions(-) create mode 100644 include/net/netfilter/nf_conntrack_acct.h create mode 100644 net/netfilter/nf_conntrack_acct.c (limited to 'include') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 86334b6f8238..9f73587219e8 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -336,3 +336,13 @@ When: After the only user (hal) has seen a release with the patches Why: Over 1K .text/.data size reduction, data is available in other ways (ioctls) Who: Johannes Berg + +--------------------------- + +What: CONFIG_NF_CT_ACCT +When: 2.6.29 +Why: Accounting can now be enabled/disabled without kernel recompilation. + Currently used only to set a default value for a feature that is also + controlled by a kernel/module/sysfs/sysctl parameter. +Who: Krzysztof Piotr Oledzki + diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 09ad7450647b..e4ef27584408 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1279,6 +1279,13 @@ and is between 256 and 4096 characters. It is defined in the file This usage is only documented in each driver source file if at all. + nf_conntrack.acct= + [NETFILTER] Enable connection tracking flow accounting + 0 to disable accounting + 1 to enable accounting + Default value depends on CONFIG_NF_CT_ACCT that is + going to be removed in 2.6.29. + nfsaddrs= [NFS] See Documentation/filesystems/nfsroot.txt. diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h index bad1eb760f61..885cbe282260 100644 --- a/include/linux/netfilter/nf_conntrack_common.h +++ b/include/linux/netfilter/nf_conntrack_common.h @@ -122,7 +122,7 @@ enum ip_conntrack_events IPCT_NATINFO_BIT = 10, IPCT_NATINFO = (1 << IPCT_NATINFO_BIT), - /* Counter highest bit has been set */ + /* Counter highest bit has been set, unused */ IPCT_COUNTER_FILLING_BIT = 11, IPCT_COUNTER_FILLING = (1 << IPCT_COUNTER_FILLING_BIT), @@ -145,12 +145,6 @@ enum ip_conntrack_expect_events { }; #ifdef __KERNEL__ -struct ip_conntrack_counter -{ - u_int32_t packets; - u_int32_t bytes; -}; - struct ip_conntrack_stat { unsigned int searched; diff --git a/include/linux/netfilter/nfnetlink_conntrack.h b/include/linux/netfilter/nfnetlink_conntrack.h index 759bc043dc65..c19595c89304 100644 --- a/include/linux/netfilter/nfnetlink_conntrack.h +++ b/include/linux/netfilter/nfnetlink_conntrack.h @@ -115,10 +115,10 @@ enum ctattr_protoinfo_sctp { enum ctattr_counters { CTA_COUNTERS_UNSPEC, - CTA_COUNTERS_PACKETS, /* old 64bit counters */ - CTA_COUNTERS_BYTES, /* old 64bit counters */ - CTA_COUNTERS32_PACKETS, - CTA_COUNTERS32_BYTES, + CTA_COUNTERS_PACKETS, /* 64bit counters */ + CTA_COUNTERS_BYTES, /* 64bit counters */ + CTA_COUNTERS32_PACKETS, /* old 32bit counters, unused */ + CTA_COUNTERS32_BYTES, /* old 32bit counters, unused */ __CTA_COUNTERS_MAX }; #define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1) diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index 8f5b75734dd0..0741ad592da0 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -88,7 +88,6 @@ struct nf_conn_help { u8 expecting[NF_CT_MAX_EXPECT_CLASSES]; }; - #include #include @@ -111,11 +110,6 @@ struct nf_conn /* Timer function; drops refcnt when it goes off. */ struct timer_list timeout; -#ifdef CONFIG_NF_CT_ACCT - /* Accounting Information (same cache line as other written members) */ - struct ip_conntrack_counter counters[IP_CT_DIR_MAX]; -#endif - #if defined(CONFIG_NF_CONNTRACK_MARK) u_int32_t mark; #endif diff --git a/include/net/netfilter/nf_conntrack_acct.h b/include/net/netfilter/nf_conntrack_acct.h new file mode 100644 index 000000000000..5d5ae55d54c4 --- /dev/null +++ b/include/net/netfilter/nf_conntrack_acct.h @@ -0,0 +1,51 @@ +/* + * (C) 2008 Krzysztof Piotr Oledzki + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _NF_CONNTRACK_ACCT_H +#define _NF_CONNTRACK_ACCT_H +#include +#include +#include +#include + +struct nf_conn_counter { + u_int64_t packets; + u_int64_t bytes; +}; + +extern int nf_ct_acct; + +static inline +struct nf_conn_counter *nf_conn_acct_find(const struct nf_conn *ct) +{ + return nf_ct_ext_find(ct, NF_CT_EXT_ACCT); +} + +static inline +struct nf_conn_counter *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp) +{ + struct nf_conn_counter *acct; + + if (!nf_ct_acct) + return NULL; + + acct = nf_ct_ext_add(ct, NF_CT_EXT_ACCT, gfp); + if (!acct) + pr_debug("failed to add accounting extension area"); + + + return acct; +}; + +extern unsigned int +seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir); + +extern int nf_conntrack_acct_init(void); +extern void nf_conntrack_acct_fini(void); + +#endif /* _NF_CONNTRACK_ACCT_H */ diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h index f80c0ed6d870..da8ee52613a5 100644 --- a/include/net/netfilter/nf_conntrack_extend.h +++ b/include/net/netfilter/nf_conntrack_extend.h @@ -7,11 +7,13 @@ enum nf_ct_ext_id { NF_CT_EXT_HELPER, NF_CT_EXT_NAT, + NF_CT_EXT_ACCT, NF_CT_EXT_NUM, }; #define NF_CT_EXT_HELPER_TYPE struct nf_conn_help #define NF_CT_EXT_NAT_TYPE struct nf_conn_nat +#define NF_CT_EXT_ACCT_TYPE struct nf_conn_counter /* Extensions: optional stuff which isn't permanently in struct. */ struct nf_ct_ext { diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c index 40a46d482490..3a020720e40b 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c @@ -18,19 +18,7 @@ #include #include #include - -#ifdef CONFIG_NF_CT_ACCT -static unsigned int -seq_print_counters(struct seq_file *s, - const struct ip_conntrack_counter *counter) -{ - return seq_printf(s, "packets=%llu bytes=%llu ", - (unsigned long long)counter->packets, - (unsigned long long)counter->bytes); -} -#else -#define seq_print_counters(x, y) 0 -#endif +#include struct ct_iter_state { unsigned int bucket; @@ -127,7 +115,7 @@ static int ct_seq_show(struct seq_file *s, void *v) l3proto, l4proto)) return -ENOSPC; - if (seq_print_counters(s, &ct->counters[IP_CT_DIR_ORIGINAL])) + if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL)) return -ENOSPC; if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status))) @@ -138,7 +126,7 @@ static int ct_seq_show(struct seq_file *s, void *v) l3proto, l4proto)) return -ENOSPC; - if (seq_print_counters(s, &ct->counters[IP_CT_DIR_REPLY])) + if (seq_print_acct(s, ct, IP_CT_DIR_REPLY)) return -ENOSPC; if (test_bit(IPS_ASSURED_BIT, &ct->status)) diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 316c7af1d2b1..ee898e74808d 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -49,6 +49,15 @@ config NF_CT_ACCT Those counters can be used for flow-based accounting or the `connbytes' match. + Please note that currently this option only sets a default state. + You may change it at boot time with nf_conntrack.acct=0/1 kernel + paramater or by loading the nf_conntrack module with acct=0/1. + + You may also disable/enable it on a running system with: + sysctl net.netfilter.nf_conntrack_acct=0/1 + + This option will be removed in 2.6.29. + If unsure, say `N'. config NF_CONNTRACK_MARK diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile index 5c4b183f6422..3bd2cc556aea 100644 --- a/net/netfilter/Makefile +++ b/net/netfilter/Makefile @@ -1,6 +1,6 @@ netfilter-objs := core.o nf_log.o nf_queue.o nf_sockopt.o -nf_conntrack-y := nf_conntrack_core.o nf_conntrack_standalone.o nf_conntrack_expect.o nf_conntrack_helper.o nf_conntrack_proto.o nf_conntrack_l3proto_generic.o nf_conntrack_proto_generic.o nf_conntrack_proto_tcp.o nf_conntrack_proto_udp.o nf_conntrack_extend.o +nf_conntrack-y := nf_conntrack_core.o nf_conntrack_standalone.o nf_conntrack_expect.o nf_conntrack_helper.o nf_conntrack_proto.o nf_conntrack_l3proto_generic.o nf_conntrack_proto_generic.o nf_conntrack_proto_tcp.o nf_conntrack_proto_udp.o nf_conntrack_extend.o nf_conntrack_acct.o nf_conntrack-$(CONFIG_NF_CONNTRACK_EVENTS) += nf_conntrack_ecache.o obj-$(CONFIG_NETFILTER) = netfilter.o diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c new file mode 100644 index 000000000000..59bd8b903a19 --- /dev/null +++ b/net/netfilter/nf_conntrack_acct.c @@ -0,0 +1,104 @@ +/* Accouting handling for netfilter. */ + +/* + * (C) 2008 Krzysztof Piotr Oledzki + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include + +#include +#include +#include + +#ifdef CONFIG_NF_CT_ACCT +#define NF_CT_ACCT_DEFAULT 1 +#else +#define NF_CT_ACCT_DEFAULT 0 +#endif + +int nf_ct_acct __read_mostly = NF_CT_ACCT_DEFAULT; +EXPORT_SYMBOL_GPL(nf_ct_acct); + +module_param_named(acct, nf_ct_acct, bool, 0644); +MODULE_PARM_DESC(acct, "Enable connection tracking flow accounting."); + +#ifdef CONFIG_SYSCTL +static struct ctl_table_header *acct_sysctl_header; +static struct ctl_table acct_sysctl_table[] = { + { + .ctl_name = CTL_UNNUMBERED, + .procname = "nf_conntrack_acct", + .data = &nf_ct_acct, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + {} +}; +#endif /* CONFIG_SYSCTL */ + +unsigned int +seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir) +{ + struct nf_conn_counter *acct; + + acct = nf_conn_acct_find(ct); + if (!acct) + return 0; + + return seq_printf(s, "packets=%llu bytes=%llu ", + (unsigned long long)acct[dir].packets, + (unsigned long long)acct[dir].bytes); +}; +EXPORT_SYMBOL_GPL(seq_print_acct); + +static struct nf_ct_ext_type acct_extend __read_mostly = { + .len = sizeof(struct nf_conn_counter[IP_CT_DIR_MAX]), + .align = __alignof__(struct nf_conn_counter[IP_CT_DIR_MAX]), + .id = NF_CT_EXT_ACCT, +}; + +int nf_conntrack_acct_init(void) +{ + int ret; + +#ifdef CONFIG_NF_CT_ACCT + printk(KERN_WARNING "CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Plase use\n"); + printk(KERN_WARNING "nf_conntrack.acct=1 kernel paramater, acct=1 nf_conntrack module option or\n"); + printk(KERN_WARNING "sysctl net.netfilter.nf_conntrack_acct=1 to enable it.\n"); +#endif + + ret = nf_ct_extend_register(&acct_extend); + if (ret < 0) { + printk(KERN_ERR "nf_conntrack_acct: Unable to register extension\n"); + return ret; + } + +#ifdef CONFIG_SYSCTL + acct_sysctl_header = register_sysctl_paths(nf_net_netfilter_sysctl_path, + acct_sysctl_table); + + if (!acct_sysctl_header) { + nf_ct_extend_unregister(&acct_extend); + + printk(KERN_ERR "nf_conntrack_acct: can't register to sysctl.\n"); + return -ENOMEM; + } +#endif + + return 0; +} + +void nf_conntrack_acct_fini(void) +{ +#ifdef CONFIG_SYSCTL + unregister_sysctl_table(acct_sysctl_header); +#endif + nf_ct_extend_unregister(&acct_extend); +} diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 28d03e64200b..c519d090bdb9 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -37,6 +37,7 @@ #include #include #include +#include #define NF_CONNTRACK_VERSION "0.5.0" @@ -555,6 +556,8 @@ init_conntrack(const struct nf_conntrack_tuple *tuple, return NULL; } + nf_ct_acct_ext_add(ct, GFP_ATOMIC); + spin_lock_bh(&nf_conntrack_lock); exp = nf_ct_find_expectation(tuple); if (exp) { @@ -828,17 +831,16 @@ void __nf_ct_refresh_acct(struct nf_conn *ct, } acct: -#ifdef CONFIG_NF_CT_ACCT if (do_acct) { - ct->counters[CTINFO2DIR(ctinfo)].packets++; - ct->counters[CTINFO2DIR(ctinfo)].bytes += - skb->len - skb_network_offset(skb); + struct nf_conn_counter *acct; - if ((ct->counters[CTINFO2DIR(ctinfo)].packets & 0x80000000) - || (ct->counters[CTINFO2DIR(ctinfo)].bytes & 0x80000000)) - event |= IPCT_COUNTER_FILLING; + acct = nf_conn_acct_find(ct); + if (acct) { + acct[CTINFO2DIR(ctinfo)].packets++; + acct[CTINFO2DIR(ctinfo)].bytes += + skb->len - skb_network_offset(skb); + } } -#endif spin_unlock_bh(&nf_conntrack_lock); @@ -853,15 +855,19 @@ bool __nf_ct_kill_acct(struct nf_conn *ct, const struct sk_buff *skb, int do_acct) { -#ifdef CONFIG_NF_CT_ACCT if (do_acct) { + struct nf_conn_counter *acct; + spin_lock_bh(&nf_conntrack_lock); - ct->counters[CTINFO2DIR(ctinfo)].packets++; - ct->counters[CTINFO2DIR(ctinfo)].bytes += - skb->len - skb_network_offset(skb); + acct = nf_conn_acct_find(ct); + if (acct) { + acct[CTINFO2DIR(ctinfo)].packets++; + acct[CTINFO2DIR(ctinfo)].bytes += + skb->len - skb_network_offset(skb); + } spin_unlock_bh(&nf_conntrack_lock); } -#endif + if (del_timer(&ct->timeout)) { ct->timeout.function((unsigned long)ct); return true; @@ -1029,6 +1035,7 @@ void nf_conntrack_cleanup(void) nf_conntrack_proto_fini(); nf_conntrack_helper_fini(); nf_conntrack_expect_fini(); + nf_conntrack_acct_fini(); } struct hlist_head *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced) @@ -1168,6 +1175,10 @@ int __init nf_conntrack_init(void) if (ret < 0) goto out_fini_expect; + ret = nf_conntrack_acct_init(); + if (ret < 0) + goto out_fini_helper; + /* For use by REJECT target */ rcu_assign_pointer(ip_ct_attach, nf_conntrack_attach); rcu_assign_pointer(nf_ct_destroy, destroy_conntrack); @@ -1180,6 +1191,8 @@ int __init nf_conntrack_init(void) return ret; +out_fini_helper: + nf_conntrack_helper_fini(); out_fini_expect: nf_conntrack_expect_fini(); out_fini_proto: diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 95a7967731f9..105a616c5c78 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -37,6 +37,7 @@ #include #include #include +#include #ifdef CONFIG_NF_NAT_NEEDED #include #include @@ -206,22 +207,26 @@ nla_put_failure: return -1; } -#ifdef CONFIG_NF_CT_ACCT static int ctnetlink_dump_counters(struct sk_buff *skb, const struct nf_conn *ct, enum ip_conntrack_dir dir) { enum ctattr_type type = dir ? CTA_COUNTERS_REPLY: CTA_COUNTERS_ORIG; struct nlattr *nest_count; + const struct nf_conn_counter *acct; + + acct = nf_conn_acct_find(ct); + if (!acct) + return 0; nest_count = nla_nest_start(skb, type | NLA_F_NESTED); if (!nest_count) goto nla_put_failure; - NLA_PUT_BE32(skb, CTA_COUNTERS32_PACKETS, - htonl(ct->counters[dir].packets)); - NLA_PUT_BE32(skb, CTA_COUNTERS32_BYTES, - htonl(ct->counters[dir].bytes)); + NLA_PUT_BE64(skb, CTA_COUNTERS_PACKETS, + cpu_to_be64(acct[dir].packets)); + NLA_PUT_BE64(skb, CTA_COUNTERS_BYTES, + cpu_to_be64(acct[dir].bytes)); nla_nest_end(skb, nest_count); @@ -230,9 +235,6 @@ ctnetlink_dump_counters(struct sk_buff *skb, const struct nf_conn *ct, nla_put_failure: return -1; } -#else -#define ctnetlink_dump_counters(a, b, c) (0) -#endif #ifdef CONFIG_NF_CONNTRACK_MARK static inline int @@ -501,11 +503,6 @@ static int ctnetlink_conntrack_event(struct notifier_block *this, goto nla_put_failure; #endif - if (events & IPCT_COUNTER_FILLING && - (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 || - ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0)) - goto nla_put_failure; - if (events & IPCT_RELATED && ctnetlink_dump_master(skb, ct) < 0) goto nla_put_failure; @@ -576,11 +573,15 @@ restart: cb->args[1] = (unsigned long)ct; goto out; } -#ifdef CONFIG_NF_CT_ACCT + if (NFNL_MSG_TYPE(cb->nlh->nlmsg_type) == - IPCTNL_MSG_CT_GET_CTRZERO) - memset(&ct->counters, 0, sizeof(ct->counters)); -#endif + IPCTNL_MSG_CT_GET_CTRZERO) { + struct nf_conn_counter *acct; + + acct = nf_conn_acct_find(ct); + if (acct) + memset(acct, 0, sizeof(struct nf_conn_counter[IP_CT_DIR_MAX])); + } } if (cb->args[1]) { cb->args[1] = 0; @@ -832,14 +833,9 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb, u_int8_t u3 = nfmsg->nfgen_family; int err = 0; - if (nlh->nlmsg_flags & NLM_F_DUMP) { -#ifndef CONFIG_NF_CT_ACCT - if (NFNL_MSG_TYPE(nlh->nlmsg_type) == IPCTNL_MSG_CT_GET_CTRZERO) - return -ENOTSUPP; -#endif + if (nlh->nlmsg_flags & NLM_F_DUMP) return netlink_dump_start(ctnl, skb, nlh, ctnetlink_dump_table, ctnetlink_done); - } if (cda[CTA_TUPLE_ORIG]) err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_ORIG, u3); @@ -1152,6 +1148,8 @@ ctnetlink_create_conntrack(struct nlattr *cda[], goto err; } + nf_ct_acct_ext_add(ct, GFP_KERNEL); + #if defined(CONFIG_NF_CONNTRACK_MARK) if (cda[CTA_MARK]) ct->mark = ntohl(nla_get_be32(cda[CTA_MARK])); diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index 46ea542d0df9..869ef9349d0f 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -25,6 +25,7 @@ #include #include #include +#include MODULE_LICENSE("GPL"); @@ -38,19 +39,6 @@ print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple, } EXPORT_SYMBOL_GPL(print_tuple); -#ifdef CONFIG_NF_CT_ACCT -static unsigned int -seq_print_counters(struct seq_file *s, - const struct ip_conntrack_counter *counter) -{ - return seq_printf(s, "packets=%llu bytes=%llu ", - (unsigned long long)counter->packets, - (unsigned long long)counter->bytes); -} -#else -#define seq_print_counters(x, y) 0 -#endif - struct ct_iter_state { unsigned int bucket; }; @@ -146,7 +134,7 @@ static int ct_seq_show(struct seq_file *s, void *v) l3proto, l4proto)) return -ENOSPC; - if (seq_print_counters(s, &ct->counters[IP_CT_DIR_ORIGINAL])) + if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL)) return -ENOSPC; if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status))) @@ -157,7 +145,7 @@ static int ct_seq_show(struct seq_file *s, void *v) l3proto, l4proto)) return -ENOSPC; - if (seq_print_counters(s, &ct->counters[IP_CT_DIR_REPLY])) + if (seq_print_acct(s, ct, IP_CT_DIR_REPLY)) return -ENOSPC; if (test_bit(IPS_ASSURED_BIT, &ct->status)) diff --git a/net/netfilter/xt_connbytes.c b/net/netfilter/xt_connbytes.c index d7e8983cd37f..3e39c4fe1931 100644 --- a/net/netfilter/xt_connbytes.c +++ b/net/netfilter/xt_connbytes.c @@ -8,6 +8,7 @@ #include #include #include +#include MODULE_LICENSE("GPL"); MODULE_AUTHOR("Harald Welte "); @@ -27,12 +28,15 @@ connbytes_mt(const struct sk_buff *skb, const struct net_device *in, u_int64_t what = 0; /* initialize to make gcc happy */ u_int64_t bytes = 0; u_int64_t pkts = 0; - const struct ip_conntrack_counter *counters; + const struct nf_conn_counter *counters; ct = nf_ct_get(skb, &ctinfo); if (!ct) return false; - counters = ct->counters; + + counters = nf_conn_acct_find(ct); + if (!counters) + return false; switch (sinfo->what) { case XT_CONNBYTES_PKTS: -- cgit v1.2.3 From 72961ecf84d67d6359a1b30f9b2a8427f13e1e71 Mon Sep 17 00:00:00 2001 From: Eric Leblond Date: Mon, 21 Jul 2008 10:02:35 -0700 Subject: netfilter: nfnetlink_log: send complete hardware header This patch adds some fields to NFLOG to be able to send the complete hardware header with all necessary informations. It sends to userspace: * the type of hardware link * the lenght of hardware header * the hardware header Signed-off-by: Eric Leblond Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netfilter/nfnetlink_log.h | 3 +++ net/netfilter/nfnetlink_log.c | 8 ++++++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/netfilter/nfnetlink_log.h b/include/linux/netfilter/nfnetlink_log.h index a85721332924..f661731f3cb1 100644 --- a/include/linux/netfilter/nfnetlink_log.h +++ b/include/linux/netfilter/nfnetlink_log.h @@ -48,6 +48,9 @@ enum nfulnl_attr_type { NFULA_SEQ, /* instance-local sequence number */ NFULA_SEQ_GLOBAL, /* global sequence number */ NFULA_GID, /* group id of socket */ + NFULA_HWTYPE, /* hardware type */ + NFULA_HWHEADER, /* hardware header */ + NFULA_HWLEN, /* hardware header length */ __NFULA_MAX }; diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index b8173af8c24a..9a35b57ab76d 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -453,6 +453,14 @@ __build_packet_message(struct nfulnl_instance *inst, } } + if (indev && skb_mac_header_was_set(skb)) { + NLA_PUT_BE16(inst->skb, NFULA_HWTYPE, htons(skb->dev->type)); + NLA_PUT_BE16(inst->skb, NFULA_HWLEN, + htons(skb->dev->hard_header_len)); + NLA_PUT(inst->skb, NFULA_HWHEADER, skb->dev->hard_header_len, + skb_mac_header(skb)); + } + if (skb->tstamp.tv64) { struct nfulnl_msg_packet_timestamp ts; struct timeval tv = ktime_to_timeval(skb->tstamp); -- cgit v1.2.3 From cfc1b9a6a683c835a20d5b565ade55baf639f72f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 21 Jul 2008 21:35:38 +0200 Subject: x86: convert Dprintk to pr_debug There are a couple of places where (P)Dprintk is used which is an old compile time enabled printk wrapper. Convert it to the generic pr_debug(). Signed-off-by: Thomas Gleixner --- arch/x86/kernel/acpi/boot.c | 6 ++-- arch/x86/kernel/cpu/perfctr-watchdog.c | 4 +-- arch/x86/kernel/setup_percpu.c | 6 ++-- arch/x86/kernel/smpboot.c | 52 ++++++++++++++-------------- arch/x86/mm/numa_64.c | 4 --- arch/x86/pci/early.c | 16 ++++----- include/asm-x86/apic.h | 2 -- include/asm-x86/mach-default/smpboot_hooks.h | 6 ++-- 8 files changed, 44 insertions(+), 52 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index f489d7a9be92..fa88a1d71290 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1021,7 +1021,7 @@ void __init mp_config_acpi_legacy_irqs(void) mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; #endif set_bit(MP_ISA_BUS, mp_bus_not_pci); - Dprintk("Bus #%d is ISA\n", MP_ISA_BUS); + pr_debug("Bus #%d is ISA\n", MP_ISA_BUS); #ifdef CONFIG_X86_ES7000 /* @@ -1127,8 +1127,8 @@ int mp_register_gsi(u32 gsi, int triggering, int polarity) return gsi; } if (test_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed)) { - Dprintk(KERN_DEBUG "Pin %d-%d already programmed\n", - mp_ioapic_routing[ioapic].apic_id, ioapic_pin); + pr_debug(KERN_DEBUG "Pin %d-%d already programmed\n", + mp_ioapic_routing[ioapic].apic_id, ioapic_pin); #ifdef CONFIG_X86_32 return (gsi < IRQ_COMPRESSION_START ? gsi : gsi_to_irq[gsi]); #else diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c index 6d4bdc02388a..de7439f82b92 100644 --- a/arch/x86/kernel/cpu/perfctr-watchdog.c +++ b/arch/x86/kernel/cpu/perfctr-watchdog.c @@ -250,7 +250,7 @@ static void write_watchdog_counter(unsigned int perfctr_msr, do_div(count, nmi_hz); if(descr) - Dprintk("setting %s to -0x%08Lx\n", descr, count); + pr_debug("setting %s to -0x%08Lx\n", descr, count); wrmsrl(perfctr_msr, 0 - count); } @@ -261,7 +261,7 @@ static void write_watchdog_counter32(unsigned int perfctr_msr, do_div(count, nmi_hz); if(descr) - Dprintk("setting %s to -0x%08Lx\n", descr, count); + pr_debug("setting %s to -0x%08Lx\n", descr, count); wrmsr(perfctr_msr, (u32)(-count), 0); } diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index cac68430d31f..f7745f94c006 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -227,8 +227,8 @@ static void __init setup_node_to_cpumask_map(void) /* allocate the map */ map = alloc_bootmem_low(nr_node_ids * sizeof(cpumask_t)); - Dprintk(KERN_DEBUG "Node to cpumask map at %p for %d nodes\n", - map, nr_node_ids); + pr_debug(KERN_DEBUG "Node to cpumask map at %p for %d nodes\n", + map, nr_node_ids); /* node_to_cpumask() will now work */ node_to_cpumask_map = map; @@ -248,7 +248,7 @@ void __cpuinit numa_set_node(int cpu, int node) per_cpu(x86_cpu_to_node_map, cpu) = node; else - Dprintk(KERN_INFO "Setting node for non-present cpu %d\n", cpu); + pr_debug("Setting node for non-present cpu %d\n", cpu); } void __cpuinit numa_clear_node(int cpu) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 27640196eb7c..4b53a647bc0a 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -216,7 +216,7 @@ static void __cpuinit smp_callin(void) panic("%s: phys CPU#%d, CPU#%d already present??\n", __func__, phys_id, cpuid); } - Dprintk("CPU#%d (phys ID: %d) waiting for CALLOUT\n", cpuid, phys_id); + pr_debug("CPU#%d (phys ID: %d) waiting for CALLOUT\n", cpuid, phys_id); /* * STARTUP IPIs are fragile beasts as they might sometimes @@ -251,7 +251,7 @@ static void __cpuinit smp_callin(void) * boards) */ - Dprintk("CALLIN, before setup_local_APIC().\n"); + pr_debug("CALLIN, before setup_local_APIC().\n"); smp_callin_clear_local_apic(); setup_local_APIC(); end_local_APIC_setup(); @@ -266,7 +266,7 @@ static void __cpuinit smp_callin(void) local_irq_enable(); calibrate_delay(); local_irq_disable(); - Dprintk("Stack at about %p\n", &cpuid); + pr_debug("Stack at about %p\n", &cpuid); /* * Save our processor parameters @@ -513,7 +513,7 @@ static void impress_friends(void) /* * Allow the user to impress friends. */ - Dprintk("Before bogomips.\n"); + pr_debug("Before bogomips.\n"); for_each_possible_cpu(cpu) if (cpu_isset(cpu, cpu_callout_map)) bogosum += cpu_data(cpu).loops_per_jiffy; @@ -523,7 +523,7 @@ static void impress_friends(void) bogosum/(500000/HZ), (bogosum/(5000/HZ))%100); - Dprintk("Before bogocount - setting activated=1.\n"); + pr_debug("Before bogocount - setting activated=1.\n"); } static inline void __inquire_remote_apic(int apicid) @@ -585,7 +585,7 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) /* Kick the second */ apic_write(APIC_ICR, APIC_DM_NMI | APIC_DEST_LOGICAL); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); /* @@ -596,7 +596,7 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ apic_write(APIC_ESR, 0); accept_status = (apic_read(APIC_ESR) & 0xEF); - Dprintk("NMI sent.\n"); + pr_debug("NMI sent.\n"); if (send_status) printk(KERN_ERR "APIC never delivered???\n"); @@ -631,7 +631,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) apic_read(APIC_ESR); } - Dprintk("Asserting INIT.\n"); + pr_debug("Asserting INIT.\n"); /* * Turn INIT on target chip @@ -644,12 +644,12 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_INT_ASSERT | APIC_DM_INIT); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); mdelay(10); - Dprintk("Deasserting INIT.\n"); + pr_debug("Deasserting INIT.\n"); /* Target chip */ apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); @@ -657,7 +657,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) /* Send IPI */ apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); mb(); @@ -684,14 +684,14 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) /* * Run STARTUP IPI loop. */ - Dprintk("#startup loops: %d.\n", num_starts); + pr_debug("#startup loops: %d.\n", num_starts); for (j = 1; j <= num_starts; j++) { - Dprintk("Sending STARTUP #%d.\n", j); + pr_debug("Sending STARTUP #%d.\n", j); if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ apic_write(APIC_ESR, 0); apic_read(APIC_ESR); - Dprintk("After apic_write.\n"); + pr_debug("After apic_write.\n"); /* * STARTUP IPI @@ -709,9 +709,9 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) */ udelay(300); - Dprintk("Startup point 1.\n"); + pr_debug("Startup point 1.\n"); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); /* @@ -724,7 +724,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) if (send_status || accept_status) break; } - Dprintk("After Startup.\n"); + pr_debug("After Startup.\n"); if (send_status) printk(KERN_ERR "APIC never delivered???\n"); @@ -875,7 +875,7 @@ do_rest: if (get_uv_system_type() != UV_NON_UNIQUE_APIC) { - Dprintk("Setting warm reset code and vector.\n"); + pr_debug("Setting warm reset code and vector.\n"); store_NMI_vector(&nmi_high, &nmi_low); @@ -896,9 +896,9 @@ do_rest: /* * allow APs to start initializing. */ - Dprintk("Before Callout %d.\n", cpu); + pr_debug("Before Callout %d.\n", cpu); cpu_set(cpu, cpu_callout_map); - Dprintk("After Callout %d.\n", cpu); + pr_debug("After Callout %d.\n", cpu); /* * Wait 5s total for a response @@ -911,10 +911,10 @@ do_rest: if (cpu_isset(cpu, cpu_callin_map)) { /* number CPUs logically, starting from 1 (BSP is 0) */ - Dprintk("OK.\n"); + pr_debug("OK.\n"); printk(KERN_INFO "CPU%d: ", cpu); print_cpu_info(&cpu_data(cpu)); - Dprintk("CPU has booted.\n"); + pr_debug("CPU has booted.\n"); } else { boot_error = 1; if (*((volatile unsigned char *)trampoline_base) @@ -959,7 +959,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) WARN_ON(irqs_disabled()); - Dprintk("++++++++++++++++++++=_---CPU UP %u\n", cpu); + pr_debug("++++++++++++++++++++=_---CPU UP %u\n", cpu); if (apicid == BAD_APICID || apicid == boot_cpu_physical_apicid || !physid_isset(apicid, phys_cpu_present_map)) { @@ -971,7 +971,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) * Already booted CPU? */ if (cpu_isset(cpu, cpu_callin_map)) { - Dprintk("do_boot_cpu %d Already started\n", cpu); + pr_debug("do_boot_cpu %d Already started\n", cpu); return -ENOSYS; } @@ -998,7 +998,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) err = do_boot_cpu(apicid, cpu); #endif if (err) { - Dprintk("do_boot_cpu failed %d\n", err); + pr_debug("do_boot_cpu failed %d\n", err); return -EIO; } @@ -1202,7 +1202,7 @@ void __init native_smp_prepare_boot_cpu(void) void __init native_smp_cpus_done(unsigned int max_cpus) { - Dprintk("Boot done.\n"); + pr_debug("Boot done.\n"); impress_friends(); smp_checks(); diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index b432d5781773..9782f42dd319 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -20,10 +20,6 @@ #include #include -#ifndef Dprintk -#define Dprintk(x...) -#endif - struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; EXPORT_SYMBOL(node_data); diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c index 858dbe3399f9..86631ccbc25a 100644 --- a/arch/x86/pci/early.c +++ b/arch/x86/pci/early.c @@ -7,15 +7,13 @@ /* Direct PCI access. This is used for PCI accesses in early boot before the PCI subsystem works. */ -#define PDprintk(x...) - u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset) { u32 v; outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); v = inl(0xcfc); if (v != 0xffffffff) - PDprintk("%x reading 4 from %x: %x\n", slot, offset, v); + pr_debug("%x reading 4 from %x: %x\n", slot, offset, v); return v; } @@ -24,7 +22,7 @@ u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset) u8 v; outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); v = inb(0xcfc + (offset&3)); - PDprintk("%x reading 1 from %x: %x\n", slot, offset, v); + pr_debug("%x reading 1 from %x: %x\n", slot, offset, v); return v; } @@ -33,28 +31,28 @@ u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset) u16 v; outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); v = inw(0xcfc + (offset&2)); - PDprintk("%x reading 2 from %x: %x\n", slot, offset, v); + pr_debug("%x reading 2 from %x: %x\n", slot, offset, v); return v; } void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val) { - PDprintk("%x writing to %x: %x\n", slot, offset, val); + pr_debug("%x writing to %x: %x\n", slot, offset, val); outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); outl(val, 0xcfc); } void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val) { - PDprintk("%x writing to %x: %x\n", slot, offset, val); + pr_debug("%x writing to %x: %x\n", slot, offset, val); outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); outb(val, 0xcfc + (offset&3)); } void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val) { - PDprintk("%x writing to %x: %x\n", slot, offset, val); + pr_debug("%x writing to %x: %x\n", slot, offset, val); outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); outw(val, 0xcfc + (offset&2)); } @@ -71,7 +69,7 @@ void early_dump_pci_device(u8 bus, u8 slot, u8 func) int j; u32 val; - printk("PCI: %02x:%02x:%02x", bus, slot, func); + printk(KERN_INFO "PCI: %02x:%02x:%02x", bus, slot, func); for (i = 0; i < 256; i += 4) { if (!(i & 0x0f)) diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index b96460a7190d..133c998161ca 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -12,8 +12,6 @@ #define ARCH_APICTIMER_STOPS_ON_C3 1 -#define Dprintk printk - /* * Debugging macros */ diff --git a/include/asm-x86/mach-default/smpboot_hooks.h b/include/asm-x86/mach-default/smpboot_hooks.h index 56d001b9dce4..dbab36d64d48 100644 --- a/include/asm-x86/mach-default/smpboot_hooks.h +++ b/include/asm-x86/mach-default/smpboot_hooks.h @@ -12,11 +12,11 @@ static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip) { CMOS_WRITE(0xa, 0xf); local_flush_tlb(); - Dprintk("1.\n"); + pr_debug("1.\n"); *((volatile unsigned short *) TRAMPOLINE_HIGH) = start_eip >> 4; - Dprintk("2.\n"); + pr_debug("2.\n"); *((volatile unsigned short *) TRAMPOLINE_LOW) = start_eip & 0xf; - Dprintk("3.\n"); + pr_debug("3.\n"); } static inline void smpboot_restore_warm_reset_vector(void) -- cgit v1.2.3 From 74988bd85d1cb97987534fd7ffbc570e81145418 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 21 Jul 2008 13:17:38 -0700 Subject: sparc64: Do not define BIO_VMERGE_BOUNDARY. The IOMMU code and the block layer can split things up using different rules, so this can't work reliably. Signed-off-by: David S. Miller --- include/asm-sparc/io_64.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/asm-sparc/io_64.h b/include/asm-sparc/io_64.h index f4907414b39d..11daa31cdaf9 100644 --- a/include/asm-sparc/io_64.h +++ b/include/asm-sparc/io_64.h @@ -16,7 +16,6 @@ /* BIO layer definitions. */ extern unsigned long kern_base, kern_size; #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define BIO_VMERGE_BOUNDARY 8192 static inline u8 _inb(unsigned long addr) { -- cgit v1.2.3 From 6579e57b31d79d31d9b806e41ba48774e73257dc Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Mon, 21 Jul 2008 13:31:48 -0700 Subject: net: Print the module name as part of the watchdog message As suggested by Dave: This patch adds a function to get the driver name from a struct net_device, and consequently uses this in the watchdog timeout handler to print as part of the message. Signed-off-by: Arjan van de Ven Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ net/core/dev.c | 20 ++++++++++++++++++++ net/sched/sch_generic.c | 6 +++--- 3 files changed, 25 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 812bcd8b4363..f5ea445f89f0 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1645,6 +1645,8 @@ extern void dev_seq_stop(struct seq_file *seq, void *v); extern int netdev_class_create_file(struct class_attribute *class_attr); extern void netdev_class_remove_file(struct class_attribute *class_attr); +extern char *netdev_drivername(struct net_device *dev, char *buffer, int len); + extern void linkwatch_run_queue(void); extern int netdev_compute_features(unsigned long all, unsigned long one); diff --git a/net/core/dev.c b/net/core/dev.c index 1698b3998981..ad5598d2bb37 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4686,6 +4686,26 @@ err_name: return -ENOMEM; } +char *netdev_drivername(struct net_device *dev, char *buffer, int len) +{ + struct device_driver *driver; + struct device *parent; + + if (len <= 0 || !buffer) + return buffer; + buffer[0] = 0; + + parent = dev->dev.parent; + + if (!parent) + return buffer; + + driver = parent->driver; + if (driver && driver->name) + strlcpy(buffer, driver->name, len); + return buffer; +} + static void __net_exit netdev_exit(struct net *net) { kfree(net->dev_name_head); diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index cb625b4d6da5..4ac7e3a8c253 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -212,9 +212,9 @@ static void dev_watchdog(unsigned long arg) if (some_queue_stopped && time_after(jiffies, (dev->trans_start + dev->watchdog_timeo))) { - printk(KERN_INFO "NETDEV WATCHDOG: %s: " - "transmit timed out\n", - dev->name); + char drivername[64]; + printk(KERN_INFO "NETDEV WATCHDOG: %s (%s): transmit timed out\n", + dev->name, netdev_drivername(dev, drivername, 64)); dev->tx_timeout(dev); WARN_ON_ONCE(1); } -- cgit v1.2.3 From ebb36a978131810c98e7198b1187090c697cf99f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 21 Jul 2008 13:41:16 -0700 Subject: ipv6: __KERNEL__ ifdef struct ipv6_devconf Based upon a report by Olaf Hering. Signed-off-by: David S. Miller --- include/linux/ipv6.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 391ad0843a46..641e026eee8f 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -123,6 +123,7 @@ struct ipv6hdr { struct in6_addr daddr; }; +#ifdef __KERNEL__ /* * This structure contains configuration options per IPv6 link. */ @@ -167,6 +168,7 @@ struct ipv6_devconf { __s32 accept_dad; void *sysctl; }; +#endif /* index values for the variables in ipv6_devconf */ enum { -- cgit v1.2.3 From 1b26da1510c02a2dac33c0ea48904256dcec4617 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 2 Jul 2008 12:46:22 -0700 Subject: USB: handle pci_name() being const This changes usb_create_hcd() to be able to handle the fact that pci_name() has changed to a constant string. Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.c | 2 +- drivers/usb/core/hcd.h | 2 +- include/linux/usb.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 42a436478b78..07f7bedf4dca 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1764,7 +1764,7 @@ EXPORT_SYMBOL_GPL (usb_hc_died); * If memory is unavailable, returns NULL. */ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, - struct device *dev, char *bus_name) + struct device *dev, const char *bus_name) { struct usb_hcd *hcd; diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index b9de1569b39e..50b8bb2d1212 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -235,7 +235,7 @@ extern void usb_hcd_disable_endpoint(struct usb_device *udev, extern int usb_hcd_get_frame_number(struct usb_device *udev); extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver, - struct device *dev, char *bus_name); + struct device *dev, const char *bus_name); extern struct usb_hcd *usb_get_hcd(struct usb_hcd *hcd); extern void usb_put_hcd(struct usb_hcd *hcd); extern int usb_add_hcd(struct usb_hcd *hcd, diff --git a/include/linux/usb.h b/include/linux/usb.h index c08689ea9b4b..cee7fbb2b605 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -293,7 +293,7 @@ struct usb_devmap { struct usb_bus { struct device *controller; /* host/master side hardware */ int busnum; /* Bus number (in order of reg) */ - char *bus_name; /* stable id (PCI slot_name etc) */ + const char *bus_name; /* stable id (PCI slot_name etc) */ u8 uses_dma; /* Does the host controller use DMA? */ u8 otg_port; /* 0, or number of OTG/HNP port */ unsigned is_b_host:1; /* true during some HNP roleswitches */ -- cgit v1.2.3 From 9da82bd4649334817ef0e752a69eb99051645dad Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 8 May 2008 11:54:37 -0400 Subject: USB: implement "soft" unbinding This patch (as1091) changes the way usbcore handles interface unbinding. If the interface's driver supports "soft" unbinding (a new flag in the driver structure) then in-flight URBs are not cancelled and endpoints are not disabled. Instead the driver is allowed to continue communicating with the device (although of course it should stop before its disconnect routine returns). The purpose of this change is to allow drivers to do a clean shutdown when they get unbound from a device that is still plugged in. Killing all the URBs and disabling the endpoints before calling the driver's disconnect method doesn't give the driver any control over what happens, and it can leave devices in indeterminate states. For example, when usb-storage unbinds it doesn't want to stop while in the middle of transmitting a SCSI command. The soft_unbind flag is added because in the past, a number of drivers have experienced problems related to ongoing I/O after their disconnect routine returned. Hence "soft" unbinding is made available only to drivers that claim to support it. The patch also replaces "interface_to_usbdev(intf)" with "udev" in a couple of places, a minor simplification. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 11 ++++++----- include/linux/usb.h | 3 +++ 2 files changed, 9 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 0a0e8cea0afc..8da1a56659be 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -257,15 +257,16 @@ static int usb_unbind_interface(struct device *dev) udev = interface_to_usbdev(intf); error = usb_autoresume_device(udev); - /* release all urbs for this interface */ - usb_disable_interface(interface_to_usbdev(intf), intf); + /* Terminate all URBs for this interface unless the driver + * supports "soft" unbinding. + */ + if (!driver->soft_unbind) + usb_disable_interface(udev, intf); driver->disconnect(intf); /* reset other interface state */ - usb_set_interface(interface_to_usbdev(intf), - intf->altsetting[0].desc.bInterfaceNumber, - 0); + usb_set_interface(udev, intf->altsetting[0].desc.bInterfaceNumber, 0); usb_set_intfdata(intf, NULL); intf->condition = USB_INTERFACE_UNBOUND; diff --git a/include/linux/usb.h b/include/linux/usb.h index cee7fbb2b605..8429d08bd2fd 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -972,6 +972,8 @@ struct usbdrv_wrap { * added to this driver by preventing the sysfs file from being created. * @supports_autosuspend: if set to 0, the USB core will not allow autosuspend * for interfaces bound to this driver. + * @soft_unbind: if set to 1, the USB core will not kill URBs and disable + * endpoints before calling the driver's disconnect method. * * USB interface drivers must provide a name, probe() and disconnect() * methods, and an id_table. Other driver fields are optional. @@ -1012,6 +1014,7 @@ struct usb_driver { struct usbdrv_wrap drvwrap; unsigned int no_dynamic_id:1; unsigned int supports_autosuspend:1; + unsigned int soft_unbind:1; }; #define to_usb_driver(d) container_of(d, struct usb_driver, drvwrap.driver) -- cgit v1.2.3 From ea05af61a874ffbc158d9cf06df8a9396f299f38 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 20 May 2008 01:00:46 +0300 Subject: USB: remove CVS keywords This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devices.c | 2 -- drivers/usb/core/devio.c | 2 -- drivers/usb/gadget/rndis.c | 2 -- drivers/usb/gadget/rndis.h | 2 -- drivers/usb/misc/emi62.c | 2 -- drivers/usb/serial/digi_acceleport.c | 2 -- drivers/usb/storage/datafab.c | 2 -- drivers/usb/storage/debug.c | 2 -- drivers/usb/storage/debug.h | 2 -- drivers/usb/storage/dpcm.c | 2 -- drivers/usb/storage/dpcm.h | 2 -- drivers/usb/storage/freecom.c | 2 -- drivers/usb/storage/freecom.h | 2 -- drivers/usb/storage/initializers.c | 2 -- drivers/usb/storage/initializers.h | 2 -- drivers/usb/storage/isd200.c | 2 -- drivers/usb/storage/jumpshot.c | 2 -- drivers/usb/storage/protocol.c | 2 -- drivers/usb/storage/protocol.h | 2 -- drivers/usb/storage/scsiglue.c | 2 -- drivers/usb/storage/scsiglue.h | 2 -- drivers/usb/storage/sddr09.c | 1 - drivers/usb/storage/sddr09.h | 2 -- drivers/usb/storage/sddr55.c | 2 -- drivers/usb/storage/sddr55.h | 2 -- drivers/usb/storage/shuttle_usbat.c | 2 -- drivers/usb/storage/shuttle_usbat.h | 2 -- drivers/usb/storage/transport.c | 2 -- drivers/usb/storage/transport.h | 2 -- drivers/usb/storage/unusual_devs.h | 2 -- drivers/usb/storage/usb.c | 2 -- drivers/usb/storage/usb.h | 2 -- include/linux/usbdevice_fs.h | 2 -- 33 files changed, 65 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 83d9dc379d96..a681d9b92bda 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -46,8 +46,6 @@ * 2000-07-05: Ashley Montanaro * Converted file reading routine to dump to buffer once * per device, not per bus - * - * $Id: devices.c,v 1.5 2000/01/11 13:58:21 tom Exp $ */ #include diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 9218cca21043..7bee9c18b3bc 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -19,8 +19,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * - * $Id: devio.c,v 1.7 2000/02/01 17:28:48 fliegl Exp $ - * * This file implements the usbfs/x/y files, where * x is the bus number and y the device number. * diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index d0677f5d3cd5..20b15fcc9d49 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -1,8 +1,6 @@ /* * RNDIS MSG parser * - * Version: $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $ - * * Authors: Benedikt Spranger, Pengutronix * Robert Schwebel, Pengutronix * diff --git a/drivers/usb/gadget/rndis.h b/drivers/usb/gadget/rndis.h index 397b149f3ca7..b917b4f34ea8 100644 --- a/drivers/usb/gadget/rndis.h +++ b/drivers/usb/gadget/rndis.h @@ -1,8 +1,6 @@ /* * RNDIS Definitions for Remote NDIS * - * Version: $Id: rndis.h,v 1.15 2004/03/25 21:33:46 robert Exp $ - * * Authors: Benedikt Spranger, Pengutronix * Robert Schwebel, Pengutronix * diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c index 20886c21e739..5d859ded5bbf 100644 --- a/drivers/usb/misc/emi62.c +++ b/drivers/usb/misc/emi62.c @@ -6,8 +6,6 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, as published by * the Free Software Foundation, version 2. - * - * $Id: emi62.c,v 1.15 2002/04/23 06:13:59 tapio Exp $ */ #include #include diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 04a56f300ea6..d96302d0d96e 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -229,8 +229,6 @@ * in case a wake up is lost. * - Following Documentation/DocBook/kernel-locking.pdf no spin locks * are held when calling copy_to/from_user or printk. -* -* $Id: digi_acceleport.c,v 1.80.1.2 2000/11/02 05:45:08 root Exp $ */ #include diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c index 579e9f52053a..17f1ae232919 100644 --- a/drivers/usb/storage/datafab.c +++ b/drivers/usb/storage/datafab.c @@ -1,6 +1,4 @@ /* Driver for Datafab USB Compact Flash reader - * - * $Id: datafab.c,v 1.7 2002/02/25 00:40:13 mdharm Exp $ * * datafab driver v0.1: * diff --git a/drivers/usb/storage/debug.c b/drivers/usb/storage/debug.c index 01e430654a13..a2b5526c9fa0 100644 --- a/drivers/usb/storage/debug.c +++ b/drivers/usb/storage/debug.c @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Debugging Functions Source Code File * - * $Id: debug.c,v 1.9 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/debug.h b/drivers/usb/storage/debug.h index 77e244a8c376..dbb985d52423 100644 --- a/drivers/usb/storage/debug.h +++ b/drivers/usb/storage/debug.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Debugging Functions Header File * - * $Id: debug.h,v 1.6 2001/01/12 23:51:04 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/dpcm.c b/drivers/usb/storage/dpcm.c index 9a410b5a6e5b..939923471af4 100644 --- a/drivers/usb/storage/dpcm.c +++ b/drivers/usb/storage/dpcm.c @@ -1,6 +1,4 @@ /* Driver for Microtech DPCM-USB CompactFlash/SmartMedia reader - * - * $Id: dpcm.c,v 1.4 2001/06/11 02:54:25 mdharm Exp $ * * DPCM driver v0.1: * diff --git a/drivers/usb/storage/dpcm.h b/drivers/usb/storage/dpcm.h index 81b464cfcc1e..e7b7b0f120d7 100644 --- a/drivers/usb/storage/dpcm.h +++ b/drivers/usb/storage/dpcm.h @@ -1,6 +1,4 @@ /* Driver for Microtech DPCM-USB CompactFlash/SmartMedia reader - * - * $Id: dpcm.h,v 1.2 2000/08/25 00:13:51 mdharm Exp $ * * DPCM driver v0.1: * diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c index f5a4e8d6a3b1..7a4d45677227 100644 --- a/drivers/usb/storage/freecom.c +++ b/drivers/usb/storage/freecom.c @@ -1,6 +1,4 @@ /* Driver for Freecom USB/IDE adaptor - * - * $Id: freecom.c,v 1.22 2002/04/22 03:39:43 mdharm Exp $ * * Freecom v0.1: * diff --git a/drivers/usb/storage/freecom.h b/drivers/usb/storage/freecom.h index 1b012d62d0a8..20d0fe6ba0c8 100644 --- a/drivers/usb/storage/freecom.h +++ b/drivers/usb/storage/freecom.h @@ -1,6 +1,4 @@ /* Driver for Freecom USB/IDE adaptor - * - * $Id: freecom.h,v 1.4 2000/08/29 14:49:15 dlbrown Exp $ * * Freecom v0.1: * diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c index 187dd1e01093..4995bb595aef 100644 --- a/drivers/usb/storage/initializers.c +++ b/drivers/usb/storage/initializers.c @@ -1,6 +1,4 @@ /* Special Initializers for certain USB Mass Storage devices - * - * $Id: initializers.c,v 1.2 2000/09/06 22:35:57 mdharm Exp $ * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) diff --git a/drivers/usb/storage/initializers.h b/drivers/usb/storage/initializers.h index ad3ffd4236c2..529327fbb06b 100644 --- a/drivers/usb/storage/initializers.h +++ b/drivers/usb/storage/initializers.h @@ -1,6 +1,4 @@ /* Header file for Special Initializers for certain USB Mass Storage devices - * - * $Id: initializers.h,v 1.1 2000/08/29 23:07:02 mdharm Exp $ * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index a153335f3648..383abf2516a5 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -1,6 +1,4 @@ /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC - * - * $Id: isd200.c,v 1.16 2002/04/22 03:39:43 mdharm Exp $ * * Current development and maintenance: * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se) diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c index 61097cbb1585..df67f13c9e73 100644 --- a/drivers/usb/storage/jumpshot.c +++ b/drivers/usb/storage/jumpshot.c @@ -1,6 +1,4 @@ /* Driver for Lexar "Jumpshot" Compact Flash reader - * - * $Id: jumpshot.c,v 1.7 2002/02/25 00:40:13 mdharm Exp $ * * jumpshot driver v0.1: * diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c index b9b8ede61fb3..3b3357e20ea7 100644 --- a/drivers/usb/storage/protocol.c +++ b/drivers/usb/storage/protocol.c @@ -1,6 +1,4 @@ /* Driver for USB Mass Storage compliant devices - * - * $Id: protocol.c,v 1.14 2002/04/22 03:39:43 mdharm Exp $ * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) diff --git a/drivers/usb/storage/protocol.h b/drivers/usb/storage/protocol.h index 8737a36891ca..487056ffb516 100644 --- a/drivers/usb/storage/protocol.h +++ b/drivers/usb/storage/protocol.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Protocol Functions Header File * - * $Id: protocol.h,v 1.4 2001/02/13 07:10:03 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 043b60b2ad17..b4c9e0f18a82 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * SCSI layer glue code * - * $Id: scsiglue.c,v 1.26 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/scsiglue.h b/drivers/usb/storage/scsiglue.h index 737e4fa6045f..ffa1cca93d2c 100644 --- a/drivers/usb/storage/scsiglue.h +++ b/drivers/usb/storage/scsiglue.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * SCSI Connecting Glue Header File * - * $Id: scsiglue.h,v 1.4 2000/08/25 00:13:51 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c index 8972b17da843..c5a54b872c24 100644 --- a/drivers/usb/storage/sddr09.c +++ b/drivers/usb/storage/sddr09.c @@ -1,6 +1,5 @@ /* Driver for SanDisk SDDR-09 SmartMedia reader * - * $Id: sddr09.c,v 1.24 2002/04/22 03:39:43 mdharm Exp $ * (c) 2000, 2001 Robert Baruch (autophile@starband.net) * (c) 2002 Andries Brouwer (aeb@cwi.nl) * Developed with the assistance of: diff --git a/drivers/usb/storage/sddr09.h b/drivers/usb/storage/sddr09.h index c03089a9ec38..e50033ad7b19 100644 --- a/drivers/usb/storage/sddr09.h +++ b/drivers/usb/storage/sddr09.h @@ -1,8 +1,6 @@ /* Driver for SanDisk SDDR-09 SmartMedia reader * Header File * - * $Id: sddr09.h,v 1.5 2000/08/25 00:13:51 mdharm Exp $ - * * Current development and maintenance by: * (c) 2000 Robert Baruch (autophile@dol.net) * (c) 2002 Andries Brouwer (aeb@cwi.nl) diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c index 6d14327c921d..0d8df7577899 100644 --- a/drivers/usb/storage/sddr55.c +++ b/drivers/usb/storage/sddr55.c @@ -1,6 +1,4 @@ /* Driver for SanDisk SDDR-55 SmartMedia reader - * - * $Id:$ * * SDDR55 driver v0.1: * diff --git a/drivers/usb/storage/sddr55.h b/drivers/usb/storage/sddr55.h index d6bd32f6c9f3..a815a0470c84 100644 --- a/drivers/usb/storage/sddr55.h +++ b/drivers/usb/storage/sddr55.h @@ -1,8 +1,6 @@ /* Driver for SanDisk SDDR-55 SmartMedia reader * Header File * - * $Id:$ - * * Current development and maintenance by: * (c) 2002 Simon Munton * diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c index 570c1250f6f3..ae6d64810d2a 100644 --- a/drivers/usb/storage/shuttle_usbat.c +++ b/drivers/usb/storage/shuttle_usbat.c @@ -1,6 +1,4 @@ /* Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable - * - * $Id: shuttle_usbat.c,v 1.17 2002/04/22 03:39:43 mdharm Exp $ * * Current development and maintenance by: * (c) 2000, 2001 Robert Baruch (autophile@starband.net) diff --git a/drivers/usb/storage/shuttle_usbat.h b/drivers/usb/storage/shuttle_usbat.h index 3ddf143a1dec..d8bfc43e9044 100644 --- a/drivers/usb/storage/shuttle_usbat.h +++ b/drivers/usb/storage/shuttle_usbat.h @@ -1,8 +1,6 @@ /* Driver for SCM Microsystems USB-ATAPI cable * Header File * - * $Id: shuttle_usbat.h,v 1.5 2000/09/17 14:44:52 groovyjava Exp $ - * * Current development and maintenance by: * (c) 2000 Robert Baruch (autophile@dol.net) * (c) 2004, 2005 Daniel Drake diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 94138df557b9..08d3a13fec2c 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -1,6 +1,4 @@ /* Driver for USB Mass Storage compliant devices - * - * $Id: transport.c,v 1.47 2002/04/22 03:39:43 mdharm Exp $ * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) diff --git a/drivers/usb/storage/transport.h b/drivers/usb/storage/transport.h index ada7c2f43f84..e70b88182f0e 100644 --- a/drivers/usb/storage/transport.h +++ b/drivers/usb/storage/transport.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Transport Functions Header File * - * $Id: transport.h,v 1.18 2002/04/21 02:57:59 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 3ba972c20f3c..7ae69f55aa96 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Unusual Devices File * - * $Id: unusual_devs.h,v 1.32 2002/02/25 02:41:24 mdharm Exp $ - * * Current development and maintenance by: * (c) 2000-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 6bfd99dd57aa..bfea851be985 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -1,6 +1,4 @@ /* Driver for USB Mass Storage compliant devices - * - * $Id: usb.c,v 1.75 2002/04/22 03:39:43 mdharm Exp $ * * Current development and maintenance by: * (c) 1999-2003 Matthew Dharm (mdharm-usb@one-eyed-alien.net) diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h index 47906dc620db..a4ad73bd832d 100644 --- a/drivers/usb/storage/usb.h +++ b/drivers/usb/storage/usb.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Main Header File * - * $Id: usb.h,v 1.21 2002/04/21 02:57:59 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/include/linux/usbdevice_fs.h b/include/linux/usbdevice_fs.h index 3118ede2c67b..0044d9b4cb85 100644 --- a/include/linux/usbdevice_fs.h +++ b/include/linux/usbdevice_fs.h @@ -22,8 +22,6 @@ * * History: * 0.1 04.01.2000 Created - * - * $Id: usbdevice_fs.h,v 1.1 2000/01/06 18:40:41 tom Exp $ */ /*****************************************************************************/ -- cgit v1.2.3 From a4c39c41bf3592684e36fa0dbbd4ab1a31f969b9 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Thu, 19 Jun 2008 17:52:25 -0700 Subject: usb gadget: descriptor copying support Define three new descriptor manipulation utilities, for use when setting up functions that may have multiple instances: usb_copy_descriptors() to copy a vector of descriptors usb_free_descriptors() to free the copy usb_find_endpoint() to find a copied version These will be used as follows. Functions will continue to have static tables of descriptors they update, now used as __initdata templates. When a function creates a new instance, it patches those tables with relevant interface and string IDs, plus endpoint assignments. Then it copies those morphed descriptors, associates the copies with the new function instance, and records the endpoint descriptors to use when activating the endpoints. When initialization is done, only the copies remain in memory. The copies are freed on driver removal. This ensures that each instance has descriptors which hold the right instance-specific data. Two instances in the same configuration will obviously never share the same interface IDs or use the same endpoints. Instances in different configurations won't do so either, which means this is slightly less memory-efficient in some cases. This also includes a bugfix to the epautoconf code that shows up with this usage model. It must replace the previous endpoint number when updating the template descriptors, not just mask in a few more bits. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/config.c | 76 ++++++++++++++++++++++++++++++++++++++++- drivers/usb/gadget/epautoconf.c | 1 + include/linux/usb/gadget.h | 19 +++++++++++ 3 files changed, 95 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c index a4e54b2743f0..1ca1c326392a 100644 --- a/drivers/usb/gadget/config.c +++ b/drivers/usb/gadget/config.c @@ -96,7 +96,7 @@ int usb_gadget_config_buf( /* config descriptor first */ if (length < USB_DT_CONFIG_SIZE || !desc) return -EINVAL; - *cp = *config; + *cp = *config; /* then interface/endpoint/class/vendor/... */ len = usb_descriptor_fillbuf(USB_DT_CONFIG_SIZE + (u8*)buf, @@ -115,3 +115,77 @@ int usb_gadget_config_buf( return len; } +/** + * usb_copy_descriptors - copy a vector of USB descriptors + * @src: null-terminated vector to copy + * Context: initialization code, which may sleep + * + * This makes a copy of a vector of USB descriptors. Its primary use + * is to support usb_function objects which can have multiple copies, + * each needing different descriptors. Functions may have static + * tables of descriptors, which are used as templates and customized + * with identifiers (for interfaces, strings, endpoints, and more) + * as needed by a given function instance. + */ +struct usb_descriptor_header **__init +usb_copy_descriptors(struct usb_descriptor_header **src) +{ + struct usb_descriptor_header **tmp; + unsigned bytes; + unsigned n_desc; + void *mem; + struct usb_descriptor_header **ret; + + /* count descriptors and their sizes; then add vector size */ + for (bytes = 0, n_desc = 0, tmp = src; *tmp; tmp++, n_desc++) + bytes += (*tmp)->bLength; + bytes += (n_desc + 1) * sizeof(*tmp); + + mem = kmalloc(bytes, GFP_KERNEL); + if (!mem) + return NULL; + + /* fill in pointers starting at "tmp", + * to descriptors copied starting at "mem"; + * and return "ret" + */ + tmp = mem; + ret = mem; + mem += (n_desc + 1) * sizeof(*tmp); + while (*src) { + memcpy(mem, *src, (*src)->bLength); + *tmp = mem; + tmp++; + mem += (*src)->bLength; + src++; + } + *tmp = NULL; + + return ret; +} + +/** + * usb_find_endpoint - find a copy of an endpoint descriptor + * @src: original vector of descriptors + * @copy: copy of @src + * @ep: endpoint descriptor found in @src + * + * This returns the copy of the @match descriptor made for @copy. Its + * intended use is to help remembering the endpoint descriptor to use + * when enabling a given endpoint. + */ +struct usb_endpoint_descriptor *__init +usb_find_endpoint( + struct usb_descriptor_header **src, + struct usb_descriptor_header **copy, + struct usb_endpoint_descriptor *match +) +{ + while (*src) { + if (*src == (void *) match) + return (void *)*copy; + src++; + copy++; + } + return NULL; +} diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 8bdad221fa91..9462e30192d8 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -159,6 +159,7 @@ ep_matches ( /* MATCH!! */ /* report address */ + desc->bEndpointAddress &= USB_DIR_IN; if (isdigit (ep->name [2])) { u8 num = simple_strtol (&ep->name [2], NULL, 10); desc->bEndpointAddress |= num; diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index cf468fbdbf8e..0ebedaec075d 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -858,6 +858,25 @@ int usb_descriptor_fillbuf(void *, unsigned, int usb_gadget_config_buf(const struct usb_config_descriptor *config, void *buf, unsigned buflen, const struct usb_descriptor_header **desc); +/* copy a NULL-terminated vector of descriptors */ +struct usb_descriptor_header **usb_copy_descriptors( + struct usb_descriptor_header **); + +/* return copy of endpoint descriptor given original descriptor set */ +struct usb_endpoint_descriptor *usb_find_endpoint( + struct usb_descriptor_header **src, + struct usb_descriptor_header **copy, + struct usb_endpoint_descriptor *match); + +/** + * usb_free_descriptors - free descriptors returned by usb_copy_descriptors() + * @v: vector of descriptors + */ +static inline void usb_free_descriptors(struct usb_descriptor_header **v) +{ + kfree(v); +} + /*-------------------------------------------------------------------------*/ /* utility wrapping a simple endpoint selection policy */ -- cgit v1.2.3 From 40982be52d8f64c3e10adce17e66ab755a4fa26b Mon Sep 17 00:00:00 2001 From: David Brownell Date: Thu, 19 Jun 2008 17:52:58 -0700 Subject: usb gadget: composite gadget core Add interfaces for composite gadget drivers, and basic implementation support behind it: - struct usb_function ... groups one or more interfaces into a function managed as one unit within a configuration, to which it's added by usb_add_function(). - struct usb_configuration ... groups one or more such functions into a configuration managed as one unit by a driver, to which it's added by usb_add_config(). These operate at either high or full/low speeds and at a given bMaxPower. - struct usb_composite_driver ... groups one or more such configurations into a gadget driver, which may be registered or unregistered. - struct usb_composite_dev ... a usb_composite_driver manages this; it wraps the usb_gadget exposed by the controller driver. This also includes some basic kerneldoc. How to use it (the short version): provide a usb_composite_driver with a bind() that calls usb_add_config() for each of the needed configurations. The configurations in turn have bind() calls, which will usb_add_function() for each function required. Each function's bind() allocates resources needed to perform its tasks, like endpoints; sometimes configurations will allocate resources too. Separate patches will convert most gadget drivers to this infrastructure. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- Documentation/DocBook/gadget.tmpl | 35 ++ drivers/usb/gadget/composite.c | 1040 +++++++++++++++++++++++++++++++++++++ include/linux/usb/composite.h | 338 ++++++++++++ 3 files changed, 1413 insertions(+) create mode 100644 drivers/usb/gadget/composite.c create mode 100644 include/linux/usb/composite.h (limited to 'include') diff --git a/Documentation/DocBook/gadget.tmpl b/Documentation/DocBook/gadget.tmpl index 5a8ffa761e09..478bfe16a19d 100644 --- a/Documentation/DocBook/gadget.tmpl +++ b/Documentation/DocBook/gadget.tmpl @@ -524,6 +524,41 @@ These utilities include endpoint autoconfiguration. +Composite Device Framework + +The core API is sufficient for writing drivers for composite +USB devices (with more than one function in a given configuration), +and also multi-configuration devices (also more than one function, +but not necessarily sharing a given configuration). +There is however an optional framework which makes it easier to +reuse and combine functions. + + +Devices using this framework provide a struct +usb_composite_driver, which in turn provides one or +more struct usb_configuration instances. +Each such configuration includes at least one +struct usb_function, which packages a user +visible role such as "network link" or "mass storage device". +Management functions may also exist, such as "Device Firmware +Upgrade". + + +!Iinclude/linux/usb/composite.h +!Edrivers/usb/gadget/composite.c + + + +Composite Device Functions + +At this writing, a few of the current gadget drivers have +been converted to this framework. +Near-term plans include converting all of them, except for "gadgetfs". + + + + + Peripheral Controller Drivers diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c new file mode 100644 index 000000000000..b3d302a6a081 --- /dev/null +++ b/drivers/usb/gadget/composite.c @@ -0,0 +1,1040 @@ +/* + * composite.c - infrastructure for Composite USB Gadgets + * + * Copyright (C) 2006-2008 David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* #define VERBOSE_DEBUG */ + +#include +#include +#include +#include + +#include + + +/* + * The code in this file is utility code, used to build a gadget driver + * from one or more "function" drivers, one or more "configuration" + * objects, and a "usb_composite_driver" by gluing them together along + * with the relevant device-wide data. + */ + +/* big enough to hold our biggest descriptor */ +#define USB_BUFSIZ 512 + +static struct usb_composite_driver *composite; + +/* Some systems will need runtime overrides for the product identifers + * published in the device descriptor, either numbers or strings or both. + * String parameters are in UTF-8 (superset of ASCII's 7 bit characters). + */ + +static ushort idVendor; +module_param(idVendor, ushort, 0); +MODULE_PARM_DESC(idVendor, "USB Vendor ID"); + +static ushort idProduct; +module_param(idProduct, ushort, 0); +MODULE_PARM_DESC(idProduct, "USB Product ID"); + +static ushort bcdDevice; +module_param(bcdDevice, ushort, 0); +MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)"); + +static char *iManufacturer; +module_param(iManufacturer, charp, 0); +MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string"); + +static char *iProduct; +module_param(iProduct, charp, 0); +MODULE_PARM_DESC(iProduct, "USB Product string"); + +static char *iSerialNumber; +module_param(iSerialNumber, charp, 0); +MODULE_PARM_DESC(iSerialNumber, "SerialNumber string"); + +/*-------------------------------------------------------------------------*/ + +/** + * usb_add_function() - add a function to a configuration + * @config: the configuration + * @function: the function being added + * Context: single threaded during gadget setup + * + * After initialization, each configuration must have one or more + * functions added to it. Adding a function involves calling its @bind() + * method to allocate resources such as interface and string identifiers + * and endpoints. + * + * This function returns the value of the function's bind(), which is + * zero for success else a negative errno value. + */ +int __init usb_add_function(struct usb_configuration *config, + struct usb_function *function) +{ + int value = -EINVAL; + + DBG(config->cdev, "adding '%s'/%p to config '%s'/%p\n", + function->name, function, + config->label, config); + + if (!function->set_alt || !function->disable) + goto done; + + function->config = config; + list_add_tail(&function->list, &config->functions); + + /* REVISIT *require* function->bind? */ + if (function->bind) { + value = function->bind(config, function); + if (value < 0) { + list_del(&function->list); + function->config = NULL; + } + } else + value = 0; + + /* We allow configurations that don't work at both speeds. + * If we run into a lowspeed Linux system, treat it the same + * as full speed ... it's the function drivers that will need + * to avoid bulk and ISO transfers. + */ + if (!config->fullspeed && function->descriptors) + config->fullspeed = true; + if (!config->highspeed && function->hs_descriptors) + config->highspeed = true; + +done: + if (value) + DBG(config->cdev, "adding '%s'/%p --> %d\n", + function->name, function, value); + return value; +} + +/** + * usb_interface_id() - allocate an unused interface ID + * @config: configuration associated with the interface + * @function: function handling the interface + * Context: single threaded during gadget setup + * + * usb_interface_id() is called from usb_function.bind() callbacks to + * allocate new interface IDs. The function driver will then store that + * ID in interface, association, CDC union, and other descriptors. It + * will also handle any control requests targetted at that interface, + * particularly changing its altsetting via set_alt(). There may + * also be class-specific or vendor-specific requests to handle. + * + * All interface identifier should be allocated using this routine, to + * ensure that for example different functions don't wrongly assign + * different meanings to the same identifier. Note that since interface + * identifers are configuration-specific, functions used in more than + * one configuration (or more than once in a given configuration) need + * multiple versions of the relevant descriptors. + * + * Returns the interface ID which was allocated; or -ENODEV if no + * more interface IDs can be allocated. + */ +int __init usb_interface_id(struct usb_configuration *config, + struct usb_function *function) +{ + unsigned id = config->next_interface_id; + + if (id < MAX_CONFIG_INTERFACES) { + config->interface[id] = function; + config->next_interface_id = id + 1; + return id; + } + return -ENODEV; +} + +static int config_buf(struct usb_configuration *config, + enum usb_device_speed speed, void *buf, u8 type) +{ + struct usb_config_descriptor *c = buf; + void *next = buf + USB_DT_CONFIG_SIZE; + int len = USB_BUFSIZ - USB_DT_CONFIG_SIZE; + struct usb_function *f; + int status; + + /* write the config descriptor */ + c = buf; + c->bLength = USB_DT_CONFIG_SIZE; + c->bDescriptorType = type; + /* wTotalLength is written later */ + c->bNumInterfaces = config->next_interface_id; + c->bConfigurationValue = config->bConfigurationValue; + c->iConfiguration = config->iConfiguration; + c->bmAttributes = USB_CONFIG_ATT_ONE | config->bmAttributes; + c->bMaxPower = config->bMaxPower; + + /* There may be e.g. OTG descriptors */ + if (config->descriptors) { + status = usb_descriptor_fillbuf(next, len, + config->descriptors); + if (status < 0) + return status; + len -= status; + next += status; + } + + /* add each function's descriptors */ + list_for_each_entry(f, &config->functions, list) { + struct usb_descriptor_header **descriptors; + + if (speed == USB_SPEED_HIGH) + descriptors = f->hs_descriptors; + else + descriptors = f->descriptors; + if (!descriptors) + continue; + status = usb_descriptor_fillbuf(next, len, + (const struct usb_descriptor_header **) descriptors); + if (status < 0) + return status; + len -= status; + next += status; + } + + len = next - buf; + c->wTotalLength = cpu_to_le16(len); + return len; +} + +static int config_desc(struct usb_composite_dev *cdev, unsigned w_value) +{ + struct usb_gadget *gadget = cdev->gadget; + struct usb_configuration *c; + u8 type = w_value >> 8; + enum usb_device_speed speed = USB_SPEED_UNKNOWN; + + if (gadget_is_dualspeed(gadget)) { + int hs = 0; + + if (gadget->speed == USB_SPEED_HIGH) + hs = 1; + if (type == USB_DT_OTHER_SPEED_CONFIG) + hs = !hs; + if (hs) + speed = USB_SPEED_HIGH; + + } + + /* This is a lookup by config *INDEX* */ + w_value &= 0xff; + list_for_each_entry(c, &cdev->configs, list) { + /* ignore configs that won't work at this speed */ + if (speed == USB_SPEED_HIGH) { + if (!c->highspeed) + continue; + } else { + if (!c->fullspeed) + continue; + } + if (w_value == 0) + return config_buf(c, speed, cdev->req->buf, type); + w_value--; + } + return -EINVAL; +} + +static int count_configs(struct usb_composite_dev *cdev, unsigned type) +{ + struct usb_gadget *gadget = cdev->gadget; + struct usb_configuration *c; + unsigned count = 0; + int hs = 0; + + if (gadget_is_dualspeed(gadget)) { + if (gadget->speed == USB_SPEED_HIGH) + hs = 1; + if (type == USB_DT_DEVICE_QUALIFIER) + hs = !hs; + } + list_for_each_entry(c, &cdev->configs, list) { + /* ignore configs that won't work at this speed */ + if (hs) { + if (!c->highspeed) + continue; + } else { + if (!c->fullspeed) + continue; + } + count++; + } + return count; +} + +static void device_qual(struct usb_composite_dev *cdev) +{ + struct usb_qualifier_descriptor *qual = cdev->req->buf; + + qual->bLength = sizeof(*qual); + qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; + /* POLICY: same bcdUSB and device type info at both speeds */ + qual->bcdUSB = cdev->desc.bcdUSB; + qual->bDeviceClass = cdev->desc.bDeviceClass; + qual->bDeviceSubClass = cdev->desc.bDeviceSubClass; + qual->bDeviceProtocol = cdev->desc.bDeviceProtocol; + /* ASSUME same EP0 fifo size at both speeds */ + qual->bMaxPacketSize0 = cdev->desc.bMaxPacketSize0; + qual->bNumConfigurations = count_configs(cdev, USB_DT_DEVICE_QUALIFIER); +} + +/*-------------------------------------------------------------------------*/ + +static void reset_config(struct usb_composite_dev *cdev) +{ + struct usb_function *f; + + DBG(cdev, "reset config\n"); + + list_for_each_entry(f, &cdev->config->functions, list) { + if (f->disable) + f->disable(f); + } + cdev->config = NULL; +} + +static int set_config(struct usb_composite_dev *cdev, + const struct usb_ctrlrequest *ctrl, unsigned number) +{ + struct usb_gadget *gadget = cdev->gadget; + struct usb_configuration *c = NULL; + int result = -EINVAL; + unsigned power = gadget_is_otg(gadget) ? 8 : 100; + int tmp; + + if (cdev->config) + reset_config(cdev); + + if (number) { + list_for_each_entry(c, &cdev->configs, list) { + if (c->bConfigurationValue == number) { + result = 0; + break; + } + } + if (result < 0) + goto done; + } else + result = 0; + + INFO(cdev, "%s speed config #%d: %s\n", + ({ char *speed; + switch (gadget->speed) { + case USB_SPEED_LOW: speed = "low"; break; + case USB_SPEED_FULL: speed = "full"; break; + case USB_SPEED_HIGH: speed = "high"; break; + default: speed = "?"; break; + } ; speed; }), number, c ? c->label : "unconfigured"); + + if (!c) + goto done; + + cdev->config = c; + + /* Initialize all interfaces by setting them to altsetting zero. */ + for (tmp = 0; tmp < MAX_CONFIG_INTERFACES; tmp++) { + struct usb_function *f = c->interface[tmp]; + + if (!f) + break; + + result = f->set_alt(f, tmp, 0); + if (result < 0) { + DBG(cdev, "interface %d (%s/%p) alt 0 --> %d\n", + tmp, f->name, f, result); + + reset_config(cdev); + goto done; + } + } + + /* when we return, be sure our power usage is valid */ + power = 2 * c->bMaxPower; +done: + usb_gadget_vbus_draw(gadget, power); + return result; +} + +/** + * usb_add_config() - add a configuration to a device. + * @cdev: wraps the USB gadget + * @config: the configuration, with bConfigurationValue assigned + * Context: single threaded during gadget setup + * + * One of the main tasks of a composite driver's bind() routine is to + * add each of the configurations it supports, using this routine. + * + * This function returns the value of the configuration's bind(), which + * is zero for success else a negative errno value. Binding configurations + * assigns global resources including string IDs, and per-configuration + * resources such as interface IDs and endpoints. + */ +int __init usb_add_config(struct usb_composite_dev *cdev, + struct usb_configuration *config) +{ + int status = -EINVAL; + struct usb_configuration *c; + + DBG(cdev, "adding config #%u '%s'/%p\n", + config->bConfigurationValue, + config->label, config); + + if (!config->bConfigurationValue || !config->bind) + goto done; + + /* Prevent duplicate configuration identifiers */ + list_for_each_entry(c, &cdev->configs, list) { + if (c->bConfigurationValue == config->bConfigurationValue) { + status = -EBUSY; + goto done; + } + } + + config->cdev = cdev; + list_add_tail(&config->list, &cdev->configs); + + INIT_LIST_HEAD(&config->functions); + config->next_interface_id = 0; + + status = config->bind(config); + if (status < 0) { + list_del(&config->list); + config->cdev = NULL; + } else { + unsigned i; + + DBG(cdev, "cfg %d/%p speeds:%s%s\n", + config->bConfigurationValue, config, + config->highspeed ? " high" : "", + config->fullspeed + ? (gadget_is_dualspeed(cdev->gadget) + ? " full" + : " full/low") + : ""); + + for (i = 0; i < MAX_CONFIG_INTERFACES; i++) { + struct usb_function *f = config->interface[i]; + + if (!f) + continue; + DBG(cdev, " interface %d = %s/%p\n", + i, f->name, f); + } + } + + /* set_alt(), or next config->bind(), sets up + * ep->driver_data as needed. + */ + usb_ep_autoconfig_reset(cdev->gadget); + +done: + if (status) + DBG(cdev, "added config '%s'/%u --> %d\n", config->label, + config->bConfigurationValue, status); + return status; +} + +/*-------------------------------------------------------------------------*/ + +/* We support strings in multiple languages ... string descriptor zero + * says which languages are supported. The typical case will be that + * only one language (probably English) is used, with I18N handled on + * the host side. + */ + +static void collect_langs(struct usb_gadget_strings **sp, __le16 *buf) +{ + const struct usb_gadget_strings *s; + u16 language; + __le16 *tmp; + + while (*sp) { + s = *sp; + language = cpu_to_le16(s->language); + for (tmp = buf; *tmp && tmp < &buf[126]; tmp++) { + if (*tmp == language) + goto repeat; + } + *tmp++ = language; +repeat: + sp++; + } +} + +static int lookup_string( + struct usb_gadget_strings **sp, + void *buf, + u16 language, + int id +) +{ + struct usb_gadget_strings *s; + int value; + + while (*sp) { + s = *sp++; + if (s->language != language) + continue; + value = usb_gadget_get_string(s, id, buf); + if (value > 0) + return value; + } + return -EINVAL; +} + +static int get_string(struct usb_composite_dev *cdev, + void *buf, u16 language, int id) +{ + struct usb_configuration *c; + struct usb_function *f; + int len; + + /* Yes, not only is USB's I18N support probably more than most + * folk will ever care about ... also, it's all supported here. + * (Except for UTF8 support for Unicode's "Astral Planes".) + */ + + /* 0 == report all available language codes */ + if (id == 0) { + struct usb_string_descriptor *s = buf; + struct usb_gadget_strings **sp; + + memset(s, 0, 256); + s->bDescriptorType = USB_DT_STRING; + + sp = composite->strings; + if (sp) + collect_langs(sp, s->wData); + + list_for_each_entry(c, &cdev->configs, list) { + sp = c->strings; + if (sp) + collect_langs(sp, s->wData); + + list_for_each_entry(f, &c->functions, list) { + sp = f->strings; + if (sp) + collect_langs(sp, s->wData); + } + } + + for (len = 0; s->wData[len] && len <= 126; len++) + continue; + if (!len) + return -EINVAL; + + s->bLength = 2 * (len + 1); + return s->bLength; + } + + /* Otherwise, look up and return a specified string. String IDs + * are device-scoped, so we look up each string table we're told + * about. These lookups are infrequent; simpler-is-better here. + */ + if (composite->strings) { + len = lookup_string(composite->strings, buf, language, id); + if (len > 0) + return len; + } + list_for_each_entry(c, &cdev->configs, list) { + if (c->strings) { + len = lookup_string(c->strings, buf, language, id); + if (len > 0) + return len; + } + list_for_each_entry(f, &c->functions, list) { + if (!f->strings) + continue; + len = lookup_string(f->strings, buf, language, id); + if (len > 0) + return len; + } + } + return -EINVAL; +} + +/** + * usb_string_id() - allocate an unused string ID + * @cdev: the device whose string descriptor IDs are being allocated + * Context: single threaded during gadget setup + * + * @usb_string_id() is called from bind() callbacks to allocate + * string IDs. Drivers for functions, configurations, or gadgets will + * then store that ID in the appropriate descriptors and string table. + * + * All string identifier should be allocated using this routine, to + * ensure that for example different functions don't wrongly assign + * different meanings to the same identifier. + */ +int __init usb_string_id(struct usb_composite_dev *cdev) +{ + if (cdev->next_string_id < 254) { + /* string id 0 is reserved */ + cdev->next_string_id++; + return cdev->next_string_id; + } + return -ENODEV; +} + +/*-------------------------------------------------------------------------*/ + +static void composite_setup_complete(struct usb_ep *ep, struct usb_request *req) +{ + if (req->status || req->actual != req->length) + DBG((struct usb_composite_dev *) ep->driver_data, + "setup complete --> %d, %d/%d\n", + req->status, req->actual, req->length); +} + +/* + * The setup() callback implements all the ep0 functionality that's + * not handled lower down, in hardware or the hardware driver(like + * device and endpoint feature flags, and their status). It's all + * housekeeping for the gadget function we're implementing. Most of + * the work is in config and function specific setup. + */ +static int +composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + struct usb_request *req = cdev->req; + int value = -EOPNOTSUPP; + u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); + u16 w_length = le16_to_cpu(ctrl->wLength); + struct usb_function *f = NULL; + + /* partial re-init of the response message; the function or the + * gadget might need to intercept e.g. a control-OUT completion + * when we delegate to it. + */ + req->zero = 0; + req->complete = composite_setup_complete; + req->length = USB_BUFSIZ; + gadget->ep0->driver_data = cdev; + + switch (ctrl->bRequest) { + + /* we handle all standard USB descriptors */ + case USB_REQ_GET_DESCRIPTOR: + if (ctrl->bRequestType != USB_DIR_IN) + goto unknown; + switch (w_value >> 8) { + + case USB_DT_DEVICE: + cdev->desc.bNumConfigurations = + count_configs(cdev, USB_DT_DEVICE); + value = min(w_length, (u16) sizeof cdev->desc); + memcpy(req->buf, &cdev->desc, value); + break; + case USB_DT_DEVICE_QUALIFIER: + if (!gadget_is_dualspeed(gadget)) + break; + device_qual(cdev); + value = min_t(int, w_length, + sizeof(struct usb_qualifier_descriptor)); + break; + case USB_DT_OTHER_SPEED_CONFIG: + if (!gadget_is_dualspeed(gadget)) + break; + /* FALLTHROUGH */ + case USB_DT_CONFIG: + value = config_desc(cdev, w_value); + if (value >= 0) + value = min(w_length, (u16) value); + break; + case USB_DT_STRING: + value = get_string(cdev, req->buf, + w_index, w_value & 0xff); + if (value >= 0) + value = min(w_length, (u16) value); + break; + } + break; + + /* any number of configs can work */ + case USB_REQ_SET_CONFIGURATION: + if (ctrl->bRequestType != 0) + goto unknown; + if (gadget_is_otg(gadget)) { + if (gadget->a_hnp_support) + DBG(cdev, "HNP available\n"); + else if (gadget->a_alt_hnp_support) + DBG(cdev, "HNP on another port\n"); + else + VDBG(cdev, "HNP inactive\n"); + } + spin_lock(&cdev->lock); + value = set_config(cdev, ctrl, w_value); + spin_unlock(&cdev->lock); + break; + case USB_REQ_GET_CONFIGURATION: + if (ctrl->bRequestType != USB_DIR_IN) + goto unknown; + if (cdev->config) + *(u8 *)req->buf = cdev->config->bConfigurationValue; + else + *(u8 *)req->buf = 0; + value = min(w_length, (u16) 1); + break; + + /* function drivers must handle get/set altsetting; if there's + * no get() method, we know only altsetting zero works. + */ + case USB_REQ_SET_INTERFACE: + if (ctrl->bRequestType != USB_RECIP_INTERFACE) + goto unknown; + if (!cdev->config || w_index >= MAX_CONFIG_INTERFACES) + break; + f = cdev->config->interface[w_index]; + if (!f) + break; + if (w_value && !f->get_alt) + break; + value = f->set_alt(f, w_index, w_value); + break; + case USB_REQ_GET_INTERFACE: + if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) + goto unknown; + if (!cdev->config || w_index >= MAX_CONFIG_INTERFACES) + break; + f = cdev->config->interface[w_index]; + if (!f) + break; + /* lots of interfaces only need altsetting zero... */ + value = f->get_alt ? f->get_alt(f, w_index) : 0; + if (value < 0) + break; + *((u8 *)req->buf) = value; + value = min(w_length, (u16) 1); + break; + default: +unknown: + VDBG(cdev, + "non-core control req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + + /* functions always handle their interfaces ... punt other + * recipients (endpoint, other, WUSB, ...) to the current + * configuration code. + * + * REVISIT it could make sense to let the composite device + * take such requests too, if that's ever needed: to work + * in config 0, etc. + */ + if ((ctrl->bRequestType & USB_RECIP_MASK) + == USB_RECIP_INTERFACE) { + f = cdev->config->interface[w_index]; + if (f && f->setup) + value = f->setup(f, ctrl); + else + f = NULL; + } + if (value < 0 && !f) { + struct usb_configuration *c; + + c = cdev->config; + if (c && c->setup) + value = c->setup(c, ctrl); + } + + goto done; + } + + /* respond with data transfer before status phase? */ + if (value >= 0) { + req->length = value; + req->zero = value < w_length; + value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); + if (value < 0) { + DBG(cdev, "ep_queue --> %d\n", value); + req->status = 0; + composite_setup_complete(gadget->ep0, req); + } + } + +done: + /* device either stalls (value < 0) or reports success */ + return value; +} + +static void composite_disconnect(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + unsigned long flags; + + /* REVISIT: should we have config and device level + * disconnect callbacks? + */ + spin_lock_irqsave(&cdev->lock, flags); + if (cdev->config) + reset_config(cdev); + spin_unlock_irqrestore(&cdev->lock, flags); +} + +/*-------------------------------------------------------------------------*/ + +static void /* __init_or_exit */ +composite_unbind(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + + /* composite_disconnect() must already have been called + * by the underlying peripheral controller driver! + * so there's no i/o concurrency that could affect the + * state protected by cdev->lock. + */ + WARN_ON(cdev->config); + + while (!list_empty(&cdev->configs)) { + struct usb_configuration *c; + + c = list_first_entry(&cdev->configs, + struct usb_configuration, list); + while (!list_empty(&c->functions)) { + struct usb_function *f; + + f = list_first_entry(&c->functions, + struct usb_function, list); + list_del(&f->list); + if (f->unbind) { + DBG(cdev, "unbind function '%s'/%p\n", + f->name, f); + f->unbind(c, f); + /* may free memory for "f" */ + } + } + list_del(&c->list); + if (c->unbind) { + DBG(cdev, "unbind config '%s'/%p\n", c->label, c); + c->unbind(c); + /* may free memory for "c" */ + } + } + if (composite->unbind) + composite->unbind(cdev); + + if (cdev->req) { + kfree(cdev->req->buf); + usb_ep_free_request(gadget->ep0, cdev->req); + } + kfree(cdev); + set_gadget_data(gadget, NULL); + composite = NULL; +} + +static void __init +string_override_one(struct usb_gadget_strings *tab, u8 id, const char *s) +{ + struct usb_string *str = tab->strings; + + for (str = tab->strings; str->s; str++) { + if (str->id == id) { + str->s = s; + return; + } + } +} + +static void __init +string_override(struct usb_gadget_strings **tab, u8 id, const char *s) +{ + while (*tab) { + string_override_one(*tab, id, s); + tab++; + } +} + +static int __init composite_bind(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev; + int status = -ENOMEM; + + cdev = kzalloc(sizeof *cdev, GFP_KERNEL); + if (!cdev) + return status; + + spin_lock_init(&cdev->lock); + cdev->gadget = gadget; + set_gadget_data(gadget, cdev); + INIT_LIST_HEAD(&cdev->configs); + + /* preallocate control response and buffer */ + cdev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); + if (!cdev->req) + goto fail; + cdev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL); + if (!cdev->req->buf) + goto fail; + cdev->req->complete = composite_setup_complete; + gadget->ep0->driver_data = cdev; + + cdev->bufsiz = USB_BUFSIZ; + cdev->driver = composite; + + usb_gadget_set_selfpowered(gadget); + + /* interface and string IDs start at zero via kzalloc. + * we force endpoints to start unassigned; few controller + * drivers will zero ep->driver_data. + */ + usb_ep_autoconfig_reset(cdev->gadget); + + /* composite gadget needs to assign strings for whole device (like + * serial number), register function drivers, potentially update + * power state and consumption, etc + */ + status = composite->bind(cdev); + if (status < 0) + goto fail; + + cdev->desc = *composite->dev; + cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket; + + /* standardized runtime overrides for device ID data */ + if (idVendor) + cdev->desc.idVendor = cpu_to_le16(idVendor); + if (idProduct) + cdev->desc.idProduct = cpu_to_le16(idProduct); + if (bcdDevice) + cdev->desc.bcdDevice = cpu_to_le16(bcdDevice); + + /* strings can't be assigned before bind() allocates the + * releavnt identifiers + */ + if (cdev->desc.iManufacturer && iManufacturer) + string_override(composite->strings, + cdev->desc.iManufacturer, iManufacturer); + if (cdev->desc.iProduct && iProduct) + string_override(composite->strings, + cdev->desc.iProduct, iProduct); + if (cdev->desc.iSerialNumber && iSerialNumber) + string_override(composite->strings, + cdev->desc.iSerialNumber, iSerialNumber); + + INFO(cdev, "%s ready\n", composite->name); + return 0; + +fail: + composite_unbind(gadget); + return status; +} + +/*-------------------------------------------------------------------------*/ + +static void +composite_suspend(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + struct usb_function *f; + + /* REVISIT: should we have config and device level + * suspend/resume callbacks? + */ + DBG(cdev, "suspend\n"); + if (cdev->config) { + list_for_each_entry(f, &cdev->config->functions, list) { + if (f->suspend) + f->suspend(f); + } + } +} + +static void +composite_resume(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + struct usb_function *f; + + /* REVISIT: should we have config and device level + * suspend/resume callbacks? + */ + DBG(cdev, "resume\n"); + if (cdev->config) { + list_for_each_entry(f, &cdev->config->functions, list) { + if (f->resume) + f->resume(f); + } + } +} + +/*-------------------------------------------------------------------------*/ + +static struct usb_gadget_driver composite_driver = { + .speed = USB_SPEED_HIGH, + + .bind = composite_bind, + .unbind = __exit_p(composite_unbind), + + .setup = composite_setup, + .disconnect = composite_disconnect, + + .suspend = composite_suspend, + .resume = composite_resume, + + .driver = { + .owner = THIS_MODULE, + }, +}; + +/** + * usb_composite_register() - register a composite driver + * @driver: the driver to register + * Context: single threaded during gadget setup + * + * This function is used to register drivers using the composite driver + * framework. The return value is zero, or a negative errno value. + * Those values normally come from the driver's @bind method, which does + * all the work of setting up the driver to match the hardware. + * + * On successful return, the gadget is ready to respond to requests from + * the host, unless one of its components invokes usb_gadget_disconnect() + * while it was binding. That would usually be done in order to wait for + * some userspace participation. + */ +int __init usb_composite_register(struct usb_composite_driver *driver) +{ + if (!driver || !driver->dev || !driver->bind || composite) + return -EINVAL; + + if (!driver->name) + driver->name = "composite"; + composite_driver.function = (char *) driver->name; + composite_driver.driver.name = driver->name; + composite = driver; + + return usb_gadget_register_driver(&composite_driver); +} + +/** + * usb_composite_unregister() - unregister a composite driver + * @driver: the driver to unregister + * + * This function is used to unregister drivers using the composite + * driver framework. + */ +void __exit usb_composite_unregister(struct usb_composite_driver *driver) +{ + if (composite != driver) + return; + usb_gadget_unregister_driver(&composite_driver); +} diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h new file mode 100644 index 000000000000..747c3a49cdc9 --- /dev/null +++ b/include/linux/usb/composite.h @@ -0,0 +1,338 @@ +/* + * composite.h -- framework for usb gadgets which are composite devices + * + * Copyright (C) 2006-2008 David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __LINUX_USB_COMPOSITE_H +#define __LINUX_USB_COMPOSITE_H + +/* + * This framework is an optional layer on top of the USB Gadget interface, + * making it easier to build (a) Composite devices, supporting multiple + * functions within any single configuration, and (b) Multi-configuration + * devices, also supporting multiple functions but without necessarily + * having more than one function per configuration. + * + * Example: a device with a single configuration supporting both network + * link and mass storage functions is a composite device. Those functions + * might alternatively be packaged in individual configurations, but in + * the composite model the host can use both functions at the same time. + */ + +#include +#include + + +struct usb_configuration; + +/** + * struct usb_function - describes one function of a configuration + * @name: For diagnostics, identifies the function. + * @strings: tables of strings, keyed by identifiers assigned during bind() + * and by language IDs provided in control requests + * @descriptors: Table of full (or low) speed descriptors, using interface and + * string identifiers assigned during @bind(). If this pointer is null, + * the function will not be available at full speed (or at low speed). + * @hs_descriptors: Table of high speed descriptors, using interface and + * string identifiers assigned during @bind(). If this pointer is null, + * the function will not be available at high speed. + * @config: assigned when @usb_add_function() is called; this is the + * configuration with which this function is associated. + * @bind: Before the gadget can register, all of its functions bind() to the + * available resources including string and interface identifiers used + * in interface or class descriptors; endpoints; I/O buffers; and so on. + * @unbind: Reverses @bind; called as a side effect of unregistering the + * driver which added this function. + * @set_alt: (REQUIRED) Reconfigures altsettings; function drivers may + * initialize usb_ep.driver data at this time (when it is used). + * Note that setting an interface to its current altsetting resets + * interface state, and that all interfaces have a disabled state. + * @get_alt: Returns the active altsetting. If this is not provided, + * then only altsetting zero is supported. + * @disable: (REQUIRED) Indicates the function should be disabled. Reasons + * include host resetting or reconfiguring the gadget, and disconnection. + * @setup: Used for interface-specific control requests. + * @suspend: Notifies functions when the host stops sending USB traffic. + * @resume: Notifies functions when the host restarts USB traffic. + * + * A single USB function uses one or more interfaces, and should in most + * cases support operation at both full and high speeds. Each function is + * associated by @usb_add_function() with a one configuration; that function + * causes @bind() to be called so resources can be allocated as part of + * setting up a gadget driver. Those resources include endpoints, which + * should be allocated using @usb_ep_autoconfig(). + * + * To support dual speed operation, a function driver provides descriptors + * for both high and full speed operation. Except in rare cases that don't + * involve bulk endpoints, each speed needs different endpoint descriptors. + * + * Function drivers choose their own strategies for managing instance data. + * The simplest strategy just declares it "static', which means the function + * can only be activated once. If the function needs to be exposed in more + * than one configuration at a given speed, it needs to support multiple + * usb_function structures (one for each configuration). + * + * A more complex strategy might encapsulate a @usb_function structure inside + * a driver-specific instance structure to allows multiple activations. An + * example of multiple activations might be a CDC ACM function that supports + * two or more distinct instances within the same configuration, providing + * several independent logical data links to a USB host. + */ +struct usb_function { + const char *name; + struct usb_gadget_strings **strings; + struct usb_descriptor_header **descriptors; + struct usb_descriptor_header **hs_descriptors; + + struct usb_configuration *config; + + /* REVISIT: bind() functions can be marked __init, which + * makes trouble for section mismatch analysis. See if + * we can't restructure things to avoid mismatching. + * Related: unbind() may kfree() but bind() won't... + */ + + /* configuration management: bind/unbind */ + int (*bind)(struct usb_configuration *, + struct usb_function *); + void (*unbind)(struct usb_configuration *, + struct usb_function *); + + /* runtime state management */ + int (*set_alt)(struct usb_function *, + unsigned interface, unsigned alt); + int (*get_alt)(struct usb_function *, + unsigned interface); + void (*disable)(struct usb_function *); + int (*setup)(struct usb_function *, + const struct usb_ctrlrequest *); + void (*suspend)(struct usb_function *); + void (*resume)(struct usb_function *); + + /* internals */ + struct list_head list; +}; + +int usb_add_function(struct usb_configuration *, struct usb_function *); + +int usb_interface_id(struct usb_configuration *, struct usb_function *); + +/** + * ep_choose - select descriptor endpoint at current device speed + * @g: gadget, connected and running at some speed + * @hs: descriptor to use for high speed operation + * @fs: descriptor to use for full or low speed operation + */ +static inline struct usb_endpoint_descriptor * +ep_choose(struct usb_gadget *g, struct usb_endpoint_descriptor *hs, + struct usb_endpoint_descriptor *fs) +{ + if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) + return hs; + return fs; +} + +#define MAX_CONFIG_INTERFACES 16 /* arbitrary; max 255 */ + +/** + * struct usb_configuration - represents one gadget configuration + * @label: For diagnostics, describes the configuration. + * @strings: Tables of strings, keyed by identifiers assigned during @bind() + * and by language IDs provided in control requests. + * @descriptors: Table of descriptors preceding all function descriptors. + * Examples include OTG and vendor-specific descriptors. + * @bind: Called from @usb_add_config() to allocate resources unique to this + * configuration and to call @usb_add_function() for each function used. + * @unbind: Reverses @bind; called as a side effect of unregistering the + * driver which added this configuration. + * @setup: Used to delegate control requests that aren't handled by standard + * device infrastructure or directed at a specific interface. + * @bConfigurationValue: Copied into configuration descriptor. + * @iConfiguration: Copied into configuration descriptor. + * @bmAttributes: Copied into configuration descriptor. + * @bMaxPower: Copied into configuration descriptor. + * @cdev: assigned by @usb_add_config() before calling @bind(); this is + * the device associated with this configuration. + * + * Configurations are building blocks for gadget drivers structured around + * function drivers. Simple USB gadgets require only one function and one + * configuration, and handle dual-speed hardware by always providing the same + * functionality. Slightly more complex gadgets may have more than one + * single-function configuration at a given speed; or have configurations + * that only work at one speed. + * + * Composite devices are, by definition, ones with configurations which + * include more than one function. + * + * The lifecycle of a usb_configuration includes allocation, initialization + * of the fields described above, and calling @usb_add_config() to set up + * internal data and bind it to a specific device. The configuration's + * @bind() method is then used to initialize all the functions and then + * call @usb_add_function() for them. + * + * Those functions would normally be independant of each other, but that's + * not mandatory. CDC WMC devices are an example where functions often + * depend on other functions, with some functions subsidiary to others. + * Such interdependency may be managed in any way, so long as all of the + * descriptors complete by the time the composite driver returns from + * its bind() routine. + */ +struct usb_configuration { + const char *label; + struct usb_gadget_strings **strings; + const struct usb_descriptor_header **descriptors; + + /* REVISIT: bind() functions can be marked __init, which + * makes trouble for section mismatch analysis. See if + * we can't restructure things to avoid mismatching... + */ + + /* configuration management: bind/unbind */ + int (*bind)(struct usb_configuration *); + void (*unbind)(struct usb_configuration *); + int (*setup)(struct usb_configuration *, + const struct usb_ctrlrequest *); + + /* fields in the config descriptor */ + u8 bConfigurationValue; + u8 iConfiguration; + u8 bmAttributes; + u8 bMaxPower; + + struct usb_composite_dev *cdev; + + /* internals */ + struct list_head list; + struct list_head functions; + u8 next_interface_id; + unsigned highspeed:1; + unsigned fullspeed:1; + struct usb_function *interface[MAX_CONFIG_INTERFACES]; +}; + +int usb_add_config(struct usb_composite_dev *, + struct usb_configuration *); + +/** + * struct usb_composite_driver - groups configurations into a gadget + * @name: For diagnostics, identifies the driver. + * @dev: Template descriptor for the device, including default device + * identifiers. + * @strings: tables of strings, keyed by identifiers assigned during bind() + * and language IDs provided in control requests + * @bind: (REQUIRED) Used to allocate resources that are shared across the + * whole device, such as string IDs, and add its configurations using + * @usb_add_config(). This may fail by returning a negative errno + * value; it should return zero on successful initialization. + * @unbind: Reverses @bind(); called as a side effect of unregistering + * this driver. + * + * Devices default to reporting self powered operation. Devices which rely + * on bus powered operation should report this in their @bind() method. + * + * Before returning from @bind, various fields in the template descriptor + * may be overridden. These include the idVendor/idProduct/bcdDevice values + * normally to bind the appropriate host side driver, and the three strings + * (iManufacturer, iProduct, iSerialNumber) normally used to provide user + * meaningful device identifiers. (The strings will not be defined unless + * they are defined in @dev and @strings.) The correct ep0 maxpacket size + * is also reported, as defined by the underlying controller driver. + */ +struct usb_composite_driver { + const char *name; + const struct usb_device_descriptor *dev; + struct usb_gadget_strings **strings; + + /* REVISIT: bind() functions can be marked __init, which + * makes trouble for section mismatch analysis. See if + * we can't restructure things to avoid mismatching... + */ + + int (*bind)(struct usb_composite_dev *); + int (*unbind)(struct usb_composite_dev *); +}; + +extern int usb_composite_register(struct usb_composite_driver *); +extern void usb_composite_unregister(struct usb_composite_driver *); + + +/** + * struct usb_composite_device - represents one composite usb gadget + * @gadget: read-only, abstracts the gadget's usb peripheral controller + * @req: used for control responses; buffer is pre-allocated + * @bufsiz: size of buffer pre-allocated in @req + * @config: the currently active configuration + * + * One of these devices is allocated and initialized before the + * associated device driver's bind() is called. + * + * OPEN ISSUE: it appears that some WUSB devices will need to be + * built by combining a normal (wired) gadget with a wireless one. + * This revision of the gadget framework should probably try to make + * sure doing that won't hurt too much. + * + * One notion for how to handle Wireless USB devices involves: + * (a) a second gadget here, discovery mechanism TBD, but likely + * needing separate "register/unregister WUSB gadget" calls; + * (b) updates to usb_gadget to include flags "is it wireless", + * "is it wired", plus (presumably in a wrapper structure) + * bandgroup and PHY info; + * (c) presumably a wireless_ep wrapping a usb_ep, and reporting + * wireless-specific parameters like maxburst and maxsequence; + * (d) configurations that are specific to wireless links; + * (e) function drivers that understand wireless configs and will + * support wireless for (additional) function instances; + * (f) a function to support association setup (like CBAF), not + * necessarily requiring a wireless adapter; + * (g) composite device setup that can create one or more wireless + * configs, including appropriate association setup support; + * (h) more, TBD. + */ +struct usb_composite_dev { + struct usb_gadget *gadget; + struct usb_request *req; + unsigned bufsiz; + + struct usb_configuration *config; + + /* internals */ + struct usb_device_descriptor desc; + struct list_head configs; + struct usb_composite_driver *driver; + u8 next_string_id; + + spinlock_t lock; + + /* REVISIT use and existence of lock ... */ +}; + +extern int usb_string_id(struct usb_composite_dev *c); + +/* messaging utils */ +#define DBG(d, fmt, args...) \ + dev_dbg(&(d)->gadget->dev , fmt , ## args) +#define VDBG(d, fmt, args...) \ + dev_vdbg(&(d)->gadget->dev , fmt , ## args) +#define ERROR(d, fmt, args...) \ + dev_err(&(d)->gadget->dev , fmt , ## args) +#define WARN(d, fmt, args...) \ + dev_warn(&(d)->gadget->dev , fmt , ## args) +#define INFO(d, fmt, args...) \ + dev_info(&(d)->gadget->dev , fmt , ## args) + +#endif /* __LINUX_USB_COMPOSITE_H */ -- cgit v1.2.3 From e0d795e4f36c2d8949c1355b497fc5425dbb9437 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 3 Jun 2008 14:47:52 +0300 Subject: usb: irda: cleanup on ir-usb module General cleanup on ir-usb module. Introduced a common header that could be used also on usb gadget framework. Lot's of cleanups and now using macros from the header file. Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ir-usb.c | 490 ++++++++++++++++++++++++-------------------- include/linux/usb/irda.h | 151 ++++++++++++++ 2 files changed, 421 insertions(+), 220 deletions(-) create mode 100644 include/linux/usb/irda.h (limited to 'include') diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 004d57385a75..0063c11c8081 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -19,7 +19,12 @@ * was written by Roman Weissgaerber , Dag Brattli * , and Jean Tourrilhes * - * See Documentation/usb/usb-serial.txt for more information on using this driver + * See Documentation/usb/usb-serial.txt for more information on using this + * driver + * + * 2008_Jun_02 Felipe Balbi + * Introduced common header to be used also in USB Gadget Framework. + * Still needs some other style fixes. * * 2007_Jun_21 Alan Cox * Minimal cleanups for some of the driver problens and tty layer abuse. @@ -59,9 +64,10 @@ #include #include #include -#include +#include #include #include +#include /* * Version Information @@ -70,100 +76,75 @@ #define DRIVER_AUTHOR "Greg Kroah-Hartman " #define DRIVER_DESC "USB IR Dongle driver" -/* USB IrDA class spec information */ -#define USB_CLASS_IRDA 0x02 -#define USB_DT_IRDA 0x21 -#define IU_REQ_GET_CLASS_DESC 0x06 -#define SPEED_2400 0x01 -#define SPEED_9600 0x02 -#define SPEED_19200 0x03 -#define SPEED_38400 0x04 -#define SPEED_57600 0x05 -#define SPEED_115200 0x06 -#define SPEED_576000 0x07 -#define SPEED_1152000 0x08 -#define SPEED_4000000 0x09 - -struct irda_class_desc { - u8 bLength; - u8 bDescriptorType; - u16 bcdSpecRevision; - u8 bmDataSize; - u8 bmWindowSize; - u8 bmMinTurnaroundTime; - u16 wBaudRate; - u8 bmAdditionalBOFs; - u8 bIrdaRateSniff; - u8 bMaxUnicastList; -} __attribute__ ((packed)); - static int debug; /* if overridden by the user, then use their value for the size of the read and * write urbs */ static int buffer_size; + /* if overridden by the user, then use the specified number of XBOFs */ static int xbof = -1; -static int ir_startup (struct usb_serial *serial); -static int ir_open (struct usb_serial_port *port, struct file *filep); -static void ir_close (struct usb_serial_port *port, struct file *filep); -static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static void ir_write_bulk_callback (struct urb *urb); -static void ir_read_bulk_callback (struct urb *urb); -static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); +static int ir_startup(struct usb_serial *serial); +static int ir_open(struct usb_serial_port *port, struct file *filep); +static void ir_close(struct usb_serial_port *port, struct file *filep); +static int ir_write(struct usb_serial_port *port, + const unsigned char *buf, int count); +static void ir_write_bulk_callback(struct urb *urb); +static void ir_read_bulk_callback(struct urb *urb); +static void ir_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios); /* Not that this lot means you can only have one per system */ -static u8 ir_baud = 0; -static u8 ir_xbof = 0; -static u8 ir_add_bof = 0; +static u8 ir_baud; +static u8 ir_xbof; +static u8 ir_add_bof; -static struct usb_device_id id_table [] = { +static struct usb_device_id ir_id_table[] = { { USB_DEVICE(0x050f, 0x0180) }, /* KC Technology, KC-180 */ { USB_DEVICE(0x08e9, 0x0100) }, /* XTNDAccess */ { USB_DEVICE(0x09c4, 0x0011) }, /* ACTiSys ACT-IR2000U */ - { USB_INTERFACE_INFO (USB_CLASS_APP_SPEC, USB_CLASS_IRDA, 0) }, + { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, USB_SUBCLASS_IRDA, 0) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, id_table); +MODULE_DEVICE_TABLE(usb, ir_id_table); static struct usb_driver ir_driver = { - .name = "ir-usb", - .probe = usb_serial_probe, - .disconnect = usb_serial_disconnect, - .id_table = id_table, - .no_dynamic_id = 1, + .name = "ir-usb", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = ir_id_table, + .no_dynamic_id = 1, }; - static struct usb_serial_driver ir_device = { - .driver = { - .owner = THIS_MODULE, - .name = "ir-usb", + .driver = { + .owner = THIS_MODULE, + .name = "ir-usb", }, - .description = "IR Dongle", - .usb_driver = &ir_driver, - .id_table = id_table, - .num_ports = 1, - .set_termios = ir_set_termios, - .attach = ir_startup, - .open = ir_open, - .close = ir_close, - .write = ir_write, - .write_bulk_callback = ir_write_bulk_callback, - .read_bulk_callback = ir_read_bulk_callback, + .description = "IR Dongle", + .usb_driver = &ir_driver, + .id_table = ir_id_table, + .num_ports = 1, + .set_termios = ir_set_termios, + .attach = ir_startup, + .open = ir_open, + .close = ir_close, + .write = ir_write, + .write_bulk_callback = ir_write_bulk_callback, + .read_bulk_callback = ir_read_bulk_callback, }; -static inline void irda_usb_dump_class_desc(struct irda_class_desc *desc) +static inline void irda_usb_dump_class_desc(struct usb_irda_cs_descriptor *desc) { dbg("bLength=%x", desc->bLength); dbg("bDescriptorType=%x", desc->bDescriptorType); - dbg("bcdSpecRevision=%x", desc->bcdSpecRevision); + dbg("bcdSpecRevision=%x", __le16_to_cpu(desc->bcdSpecRevision)); dbg("bmDataSize=%x", desc->bmDataSize); dbg("bmWindowSize=%x", desc->bmWindowSize); dbg("bmMinTurnaroundTime=%d", desc->bmMinTurnaroundTime); - dbg("wBaudRate=%x", desc->wBaudRate); + dbg("wBaudRate=%x", __le16_to_cpu(desc->wBaudRate)); dbg("bmAdditionalBOFs=%x", desc->bmAdditionalBOFs); dbg("bIrdaRateSniff=%x", desc->bIrdaRateSniff); dbg("bMaxUnicastList=%x", desc->bMaxUnicastList); @@ -181,35 +162,37 @@ static inline void irda_usb_dump_class_desc(struct irda_class_desc *desc) * * Based on the same function in drivers/net/irda/irda-usb.c */ -static struct irda_class_desc *irda_usb_find_class_desc(struct usb_device *dev, unsigned int ifnum) +static struct usb_irda_cs_descriptor * +irda_usb_find_class_desc(struct usb_device *dev, unsigned int ifnum) { - struct irda_class_desc *desc; + struct usb_irda_cs_descriptor *desc; int ret; - - desc = kzalloc(sizeof (struct irda_class_desc), GFP_KERNEL); - if (desc == NULL) + + desc = kzalloc(sizeof(*desc), GFP_KERNEL); + if (!desc) return NULL; - - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev,0), - IU_REQ_GET_CLASS_DESC, + + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + USB_REQ_CS_IRDA_GET_CLASS_DESC, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, ifnum, desc, sizeof(*desc), 1000); - + dbg("%s - ret=%d", __func__, ret); if (ret < sizeof(*desc)) { dbg("%s - class descriptor read %s (%d)", __func__, - (ret<0) ? "failed" : "too short", + (ret < 0) ? "failed" : "too short", ret); goto error; } - if (desc->bDescriptorType != USB_DT_IRDA) { + if (desc->bDescriptorType != USB_DT_CS_IRDA) { dbg("%s - bad class descriptor type", __func__); goto error; } - + irda_usb_dump_class_desc(desc); return desc; + error: kfree(desc); return NULL; @@ -219,64 +202,100 @@ error: static u8 ir_xbof_change(u8 xbof) { u8 result; + /* reference irda-usb.c */ - switch(xbof) { - case 48: result = 0x10; break; - case 28: - case 24: result = 0x20; break; - default: - case 12: result = 0x30; break; - case 5: - case 6: result = 0x40; break; - case 3: result = 0x50; break; - case 2: result = 0x60; break; - case 1: result = 0x70; break; - case 0: result = 0x80; break; + switch (xbof) { + case 48: + result = 0x10; + break; + case 28: + case 24: + result = 0x20; + break; + default: + case 12: + result = 0x30; + break; + case 5: + case 6: + result = 0x40; + break; + case 3: + result = 0x50; + break; + case 2: + result = 0x60; + break; + case 1: + result = 0x70; + break; + case 0: + result = 0x80; + break; } + return(result); } -static int ir_startup (struct usb_serial *serial) +static int ir_startup(struct usb_serial *serial) { - struct irda_class_desc *irda_desc; + struct usb_irda_cs_descriptor *irda_desc; - irda_desc = irda_usb_find_class_desc (serial->dev, 0); - if (irda_desc == NULL) { - dev_err (&serial->dev->dev, "IRDA class descriptor not found, device not bound\n"); + irda_desc = irda_usb_find_class_desc(serial->dev, 0); + if (!irda_desc) { + dev_err(&serial->dev->dev, + "IRDA class descriptor not found, device not bound\n"); return -ENODEV; } - dbg ("%s - Baud rates supported:%s%s%s%s%s%s%s%s%s", + dbg("%s - Baud rates supported:%s%s%s%s%s%s%s%s%s", __func__, - (irda_desc->wBaudRate & 0x0001) ? " 2400" : "", - (irda_desc->wBaudRate & 0x0002) ? " 9600" : "", - (irda_desc->wBaudRate & 0x0004) ? " 19200" : "", - (irda_desc->wBaudRate & 0x0008) ? " 38400" : "", - (irda_desc->wBaudRate & 0x0010) ? " 57600" : "", - (irda_desc->wBaudRate & 0x0020) ? " 115200" : "", - (irda_desc->wBaudRate & 0x0040) ? " 576000" : "", - (irda_desc->wBaudRate & 0x0080) ? " 1152000" : "", - (irda_desc->wBaudRate & 0x0100) ? " 4000000" : ""); - - switch( irda_desc->bmAdditionalBOFs ) { - case 0x01: ir_add_bof = 48; break; - case 0x02: ir_add_bof = 24; break; - case 0x04: ir_add_bof = 12; break; - case 0x08: ir_add_bof = 6; break; - case 0x10: ir_add_bof = 3; break; - case 0x20: ir_add_bof = 2; break; - case 0x40: ir_add_bof = 1; break; - case 0x80: ir_add_bof = 0; break; - default:; + (irda_desc->wBaudRate & USB_IRDA_BR_2400) ? " 2400" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_9600) ? " 9600" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_19200) ? " 19200" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_38400) ? " 38400" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_57600) ? " 57600" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_115200) ? " 115200" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_576000) ? " 576000" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_1152000) ? " 1152000" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_4000000) ? " 4000000" : ""); + + switch (irda_desc->bmAdditionalBOFs) { + case USB_IRDA_AB_48: + ir_add_bof = 48; + break; + case USB_IRDA_AB_24: + ir_add_bof = 24; + break; + case USB_IRDA_AB_12: + ir_add_bof = 12; + break; + case USB_IRDA_AB_6: + ir_add_bof = 6; + break; + case USB_IRDA_AB_3: + ir_add_bof = 3; + break; + case USB_IRDA_AB_2: + ir_add_bof = 2; + break; + case USB_IRDA_AB_1: + ir_add_bof = 1; + break; + case USB_IRDA_AB_0: + ir_add_bof = 0; + break; + default: + break; } - kfree (irda_desc); + kfree(irda_desc); - return 0; + return 0; } -static int ir_open (struct usb_serial_port *port, struct file *filp) +static int ir_open(struct usb_serial_port *port, struct file *filp) { char *buffer; int result = 0; @@ -285,51 +304,55 @@ static int ir_open (struct usb_serial_port *port, struct file *filp) if (buffer_size) { /* override the default buffer sizes */ - buffer = kmalloc (buffer_size, GFP_KERNEL); + buffer = kmalloc(buffer_size, GFP_KERNEL); if (!buffer) { - dev_err (&port->dev, "%s - out of memory.\n", __func__); + dev_err(&port->dev, "%s - out of memory.\n", __func__); return -ENOMEM; } - kfree (port->read_urb->transfer_buffer); + kfree(port->read_urb->transfer_buffer); port->read_urb->transfer_buffer = buffer; port->read_urb->transfer_buffer_length = buffer_size; - buffer = kmalloc (buffer_size, GFP_KERNEL); + buffer = kmalloc(buffer_size, GFP_KERNEL); if (!buffer) { - dev_err (&port->dev, "%s - out of memory.\n", __func__); + dev_err(&port->dev, "%s - out of memory.\n", __func__); return -ENOMEM; } - kfree (port->write_urb->transfer_buffer); + kfree(port->write_urb->transfer_buffer); port->write_urb->transfer_buffer = buffer; port->write_urb->transfer_buffer_length = buffer_size; port->bulk_out_size = buffer_size; } /* Start reading from the device */ - usb_fill_bulk_urb ( + usb_fill_bulk_urb( port->read_urb, - port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), + port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, ir_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) - dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __func__, result); + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, result); return result; } -static void ir_close (struct usb_serial_port *port, struct file * filp) +static void ir_close(struct usb_serial_port *port, struct file *filp) { dbg("%s - port %d", __func__, port->number); - + /* shutdown our bulk read */ usb_kill_urb(port->read_urb); } -static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int count) +static int ir_write(struct usb_serial_port *port, + const unsigned char *buf, int count) { unsigned char *transfer_buffer; int result; @@ -338,7 +361,7 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int dbg("%s - port = %d, count = %d", __func__, port->number, count); if (!port->tty) { - dev_err (&port->dev, "%s - no tty???\n", __func__); + dev_err(&port->dev, "%s - no tty???\n", __func__); return 0; } @@ -359,7 +382,7 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int /* * The first byte of the packet we send to the device contains an - * inband header which indicates an additional number of BOFs and + * inbound header which indicates an additional number of BOFs and * a baud rate change. * * See section 5.4.2.2 of the USB IrDA spec. @@ -367,9 +390,9 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int *transfer_buffer = ir_xbof | ir_baud; ++transfer_buffer; - memcpy (transfer_buffer, buf, transfer_size); + memcpy(transfer_buffer, buf, transfer_size); - usb_fill_bulk_urb ( + usb_fill_bulk_urb( port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, @@ -381,17 +404,19 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int port->write_urb->transfer_flags = URB_ZERO_PACKET; - result = usb_submit_urb (port->write_urb, GFP_ATOMIC); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { port->write_urb_busy = 0; - dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); } else result = transfer_size; return result; } -static void ir_write_bulk_callback (struct urb *urb) +static void ir_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; int status = urb->status; @@ -405,7 +430,7 @@ static void ir_write_bulk_callback (struct urb *urb) return; } - usb_serial_debug_data ( + usb_serial_debug_data( debug, &port->dev, __func__, @@ -415,7 +440,7 @@ static void ir_write_bulk_callback (struct urb *urb) usb_serial_port_softint(port); } -static void ir_read_bulk_callback (struct urb *urb) +static void ir_read_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct tty_struct *tty; @@ -431,68 +456,69 @@ static void ir_read_bulk_callback (struct urb *urb) } switch (status) { - case 0: /* Successful */ - - /* - * The first byte of the packet we get from the device - * contains a busy indicator and baud rate change. - * See section 5.4.1.2 of the USB IrDA spec. - */ - if ((*data & 0x0f) > 0) - ir_baud = *data & 0x0f; - - usb_serial_debug_data ( - debug, - &port->dev, - __func__, - urb->actual_length, - data); - - tty = port->tty; - - if (tty_buffer_request_room(tty, urb->actual_length - 1)) { - tty_insert_flip_string(tty, data+1, urb->actual_length - 1); - tty_flip_buffer_push(tty); - } - - /* - * No break here. - * We want to resubmit the urb so we can read - * again. - */ - - case -EPROTO: /* taking inspiration from pl2303.c */ - - /* Continue trying to always read */ - usb_fill_bulk_urb ( - port->read_urb, - port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - ir_read_bulk_callback, - port); - - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", - __func__, result); - - break ; - - default: - dbg("%s - nonzero read bulk status received: %d", - __func__, - status); - break ; + case 0: /* Successful */ + + /* + * The first byte of the packet we get from the device + * contains a busy indicator and baud rate change. + * See section 5.4.1.2 of the USB IrDA spec. + */ + if ((*data & 0x0f) > 0) + ir_baud = *data & 0x0f; + + usb_serial_debug_data( + debug, + &port->dev, + __func__, + urb->actual_length, + data); + + tty = port->tty; + + if (tty_buffer_request_room(tty, urb->actual_length - 1)) { + tty_insert_flip_string(tty, data + 1, + urb->actual_length - 1); + tty_flip_buffer_push(tty); + } + /* + * No break here. + * We want to resubmit the urb so we can read + * again. + */ + + case -EPROTO: /* taking inspiration from pl2303.c */ + + /* Continue trying to always read */ + usb_fill_bulk_urb( + port->read_urb, + port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + ir_read_bulk_callback, + port); + + result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (result) + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); + break; + + default: + dbg("%s - nonzero read bulk status received: %d", + __func__, + status); + break; } return; } -static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void ir_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios) { unsigned char *transfer_buffer; int result; @@ -510,19 +536,36 @@ static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_t */ switch (baud) { - case 2400: ir_baud = SPEED_2400; break; - case 9600: ir_baud = SPEED_9600; break; - case 19200: ir_baud = SPEED_19200; break; - case 38400: ir_baud = SPEED_38400; break; - case 57600: ir_baud = SPEED_57600; break; - case 115200: ir_baud = SPEED_115200; break; - case 576000: ir_baud = SPEED_576000; break; - case 1152000: ir_baud = SPEED_1152000; break; - case 4000000: ir_baud = SPEED_4000000; break; - break; - default: - ir_baud = SPEED_9600; - baud = 9600; + case 2400: + ir_baud = USB_IRDA_BR_2400; + break; + case 9600: + ir_baud = USB_IRDA_BR_9600; + break; + case 19200: + ir_baud = USB_IRDA_BR_19200; + break; + case 38400: + ir_baud = USB_IRDA_BR_38400; + break; + case 57600: + ir_baud = USB_IRDA_BR_57600; + break; + case 115200: + ir_baud = USB_IRDA_BR_115200; + break; + case 576000: + ir_baud = USB_IRDA_BR_576000; + break; + case 1152000: + ir_baud = USB_IRDA_BR_1152000; + break; + case 4000000: + ir_baud = USB_IRDA_BR_4000000; + break; + default: + ir_baud = USB_IRDA_BR_9600; + baud = 9600; } if (xbof == -1) @@ -538,10 +581,11 @@ static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_t transfer_buffer = port->write_urb->transfer_buffer; *transfer_buffer = ir_xbof | ir_baud; - usb_fill_bulk_urb ( + usb_fill_bulk_urb( port->write_urb, port->serial->dev, - usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 1, ir_write_bulk_callback, @@ -549,38 +593,44 @@ static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_t port->write_urb->transfer_flags = URB_ZERO_PACKET; - result = usb_submit_urb (port->write_urb, GFP_KERNEL); + result = usb_submit_urb(port->write_urb, GFP_KERNEL); if (result) - dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); /* Only speed changes are supported */ tty_termios_copy_hw(port->tty->termios, old_termios); tty_encode_baud_rate(port->tty, baud, baud); } - -static int __init ir_init (void) +static int __init ir_init(void) { int retval; + retval = usb_serial_register(&ir_device); if (retval) goto failed_usb_serial_register; + retval = usb_register(&ir_driver); - if (retval) + if (retval) goto failed_usb_register; + info(DRIVER_DESC " " DRIVER_VERSION); + return 0; + failed_usb_register: usb_serial_deregister(&ir_device); + failed_usb_serial_register: return retval; } - -static void __exit ir_exit (void) +static void __exit ir_exit(void) { - usb_deregister (&ir_driver); - usb_serial_deregister (&ir_device); + usb_deregister(&ir_driver); + usb_serial_deregister(&ir_device); } diff --git a/include/linux/usb/irda.h b/include/linux/usb/irda.h new file mode 100644 index 000000000000..e345ceaf72d6 --- /dev/null +++ b/include/linux/usb/irda.h @@ -0,0 +1,151 @@ +/* + * USB IrDA Bridge Device Definition + */ + +#ifndef __LINUX_USB_IRDA_H +#define __LINUX_USB_IRDA_H + +/* This device should use Application-specific class */ + +#define USB_SUBCLASS_IRDA 0x02 + +/*-------------------------------------------------------------------------*/ + +/* Class-Specific requests (bRequest field) */ + +#define USB_REQ_CS_IRDA_RECEIVING 1 +#define USB_REQ_CS_IRDA_CHECK_MEDIA_BUSY 3 +#define USB_REQ_CS_IRDA_RATE_SNIFF 4 +#define USB_REQ_CS_IRDA_UNICAST_LIST 5 +#define USB_REQ_CS_IRDA_GET_CLASS_DESC 6 + +/*-------------------------------------------------------------------------*/ + +/* Class-Specific descriptor */ + +#define USB_DT_CS_IRDA 0x21 + +/*-------------------------------------------------------------------------*/ + +/* Data sizes */ + +#define USB_IRDA_DS_2048 (1 << 5) +#define USB_IRDA_DS_1024 (1 << 4) +#define USB_IRDA_DS_512 (1 << 3) +#define USB_IRDA_DS_256 (1 << 2) +#define USB_IRDA_DS_128 (1 << 1) +#define USB_IRDA_DS_64 (1 << 0) + +/* Window sizes */ + +#define USB_IRDA_WS_7 (1 << 6) +#define USB_IRDA_WS_6 (1 << 5) +#define USB_IRDA_WS_5 (1 << 4) +#define USB_IRDA_WS_4 (1 << 3) +#define USB_IRDA_WS_3 (1 << 2) +#define USB_IRDA_WS_2 (1 << 1) +#define USB_IRDA_WS_1 (1 << 0) + +/* Min turnaround times in usecs */ + +#define USB_IRDA_MTT_0 (1 << 7) +#define USB_IRDA_MTT_10 (1 << 6) +#define USB_IRDA_MTT_50 (1 << 5) +#define USB_IRDA_MTT_100 (1 << 4) +#define USB_IRDA_MTT_500 (1 << 3) +#define USB_IRDA_MTT_1000 (1 << 2) +#define USB_IRDA_MTT_5000 (1 << 1) +#define USB_IRDA_MTT_10000 (1 << 0) + +/* Baud rates */ + +#define USB_IRDA_BR_4000000 (1 << 8) +#define USB_IRDA_BR_1152000 (1 << 7) +#define USB_IRDA_BR_576000 (1 << 6) +#define USB_IRDA_BR_115200 (1 << 5) +#define USB_IRDA_BR_57600 (1 << 4) +#define USB_IRDA_BR_38400 (1 << 3) +#define USB_IRDA_BR_19200 (1 << 2) +#define USB_IRDA_BR_9600 (1 << 1) +#define USB_IRDA_BR_2400 (1 << 0) + +/* Additional BOFs */ + +#define USB_IRDA_AB_0 (1 << 7) +#define USB_IRDA_AB_1 (1 << 6) +#define USB_IRDA_AB_2 (1 << 5) +#define USB_IRDA_AB_3 (1 << 4) +#define USB_IRDA_AB_6 (1 << 3) +#define USB_IRDA_AB_12 (1 << 2) +#define USB_IRDA_AB_24 (1 << 1) +#define USB_IRDA_AB_48 (1 << 0) + +/* IRDA Rate Sniff */ + +#define USB_IRDA_RATE_SNIFF 1 + +/*-------------------------------------------------------------------------*/ + +struct usb_irda_cs_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __le16 bcdSpecRevision; + __u8 bmDataSize; + __u8 bmWindowSize; + __u8 bmMinTurnaroundTime; + __le16 wBaudRate; + __u8 bmAdditionalBOFs; + __u8 bIrdaRateSniff; + __u8 bMaxUnicastList; +} __attribute__ ((packed)); + +/*-------------------------------------------------------------------------*/ + +/* Data Format */ + +#define USB_IRDA_STATUS_MEDIA_BUSY (1 << 7) + +/* The following is a 4-bit value used for both + * inbound and outbound headers: + * + * 0 - speed ignored + * 1 - 2400 bps + * 2 - 9600 bps + * 3 - 19200 bps + * 4 - 38400 bps + * 5 - 57600 bps + * 6 - 115200 bps + * 7 - 576000 bps + * 8 - 1.152 Mbps + * 9 - 5 mbps + * 10..15 - Reserved + */ +#define USB_IRDA_STATUS_LINK_SPEED 0x0f + +/* The following is a 4-bit value used only for + * outbound header: + * + * 0 - No change (BOF ignored) + * 1 - 48 BOFs + * 2 - 24 BOFs + * 3 - 12 BOFs + * 4 - 6 BOFs + * 5 - 3 BOFs + * 6 - 2 BOFs + * 7 - 1 BOFs + * 8 - 0 BOFs + * 9..15 - Reserved + */ +#define USB_IRDA_EXTRA_BOFS 0xf0 + +struct usb_irda_inbound_header { + __u8 bmStatus; +}; + +struct usb_irda_outbound_header { + __u8 bmChange; +}; + +#endif /* __LINUX_USB_IRDA_H */ + -- cgit v1.2.3 From f579c2b46f74038e8f5a762c7f10c2385b33e3dc Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 2 Jun 2008 16:26:48 -0400 Subject: USB Gadget: documentation update This patch (as1102) clarifies two points in the USB Gadget kerneldoc: Request completion callbacks are always made with interrupts disabled; Device controllers may not support STALLing the status stage of a control transfer after the data stage is over. Signed-off-by: Alan Stern Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/gadget.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 0ebedaec075d..0460a746480c 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -33,7 +33,8 @@ struct usb_ep; * @short_not_ok: When reading data, makes short packets be * treated as errors (queue stops advancing till cleanup). * @complete: Function called when request completes, so this request and - * its buffer may be re-used. + * its buffer may be re-used. The function will always be called with + * interrupts disabled, and it must not sleep. * Reads terminate with a short packet, or when the buffer fills, * whichever comes first. When writes terminate, some data bytes * will usually still be in flight (often in a hardware fifo). @@ -271,7 +272,10 @@ static inline void usb_ep_free_request(struct usb_ep *ep, * (Note that some USB device controllers disallow protocol stall responses * in some cases.) When control responses are deferred (the response is * written after the setup callback returns), then usb_ep_set_halt() may be - * used on ep0 to trigger protocol stalls. + * used on ep0 to trigger protocol stalls. Depending on the controller, + * it may not be possible to trigger a status-stage protocol stall when the + * data stage is over, that is, from within the response's completion + * routine. * * For periodic endpoints, like interrupt or isochronous ones, the usb host * arranges to poll once per interval, and the gadget driver usually will -- cgit v1.2.3 From 625f694936cbbdee98e6cc65f72724a7660e7946 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Sun, 15 Jun 2008 09:42:02 +0800 Subject: USB: remove interface parameter of usb_reset_composite_device From the current implementation of usb_reset_composite_device function, the iface parameter is no longer useful. This function doesn't do something special for the iface usb_interface,compared with other interfaces in the usb_device. So remove the parameter and fix the related caller. Signed-off-by: Ming Lei Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/hid/usbhid/hid-core.c | 2 +- drivers/usb/core/devio.c | 2 +- drivers/usb/core/hub.c | 11 +++-------- drivers/usb/storage/transport.c | 3 +-- include/linux/usb.h | 3 +-- 5 files changed, 7 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 01427c51c7cc..69fa79b6b51c 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -122,7 +122,7 @@ static void hid_reset(struct work_struct *work) dev_dbg(&usbhid->intf->dev, "resetting device\n"); rc = rc_lock = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf); if (rc_lock >= 0) { - rc = usb_reset_composite_device(hid_to_usb_dev(hid), usbhid->intf); + rc = usb_reset_composite_device(hid_to_usb_dev(hid)); if (rc_lock) usb_unlock_device(hid_to_usb_dev(hid)); } diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 7bee9c18b3bc..bc1cce5cf758 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -872,7 +872,7 @@ static int proc_connectinfo(struct dev_state *ps, void __user *arg) static int proc_resetdevice(struct dev_state *ps) { - return usb_reset_composite_device(ps->dev, NULL); + return usb_reset_composite_device(ps->dev); } static int proc_setintf(struct dev_state *ps, void __user *arg) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 3251120b414e..207c33d369be 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2712,7 +2712,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, #endif } else { - status = usb_reset_composite_device(udev, NULL); + status = usb_reset_composite_device(udev); } usb_unlock_device(udev); @@ -2940,7 +2940,7 @@ static void hub_events(void) dev_dbg (hub_dev, "resetting for error %d\n", hub->error); - ret = usb_reset_composite_device(hdev, intf); + ret = usb_reset_composite_device(hdev); if (ret) { dev_dbg (hub_dev, "error resetting hub: %d\n", ret); @@ -3355,7 +3355,6 @@ EXPORT_SYMBOL_GPL(usb_reset_device); /** * usb_reset_composite_device - warn interface drivers and perform a USB port reset * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) - * @iface: interface bound to the driver making the request (optional) * * Warns all drivers bound to registered interfaces (using their pre_reset * method), performs the port reset, and then lets the drivers know that @@ -3368,8 +3367,7 @@ EXPORT_SYMBOL_GPL(usb_reset_device); * For calls that might not occur during probe(), drivers should lock * the device using usb_lock_device_for_reset(). */ -int usb_reset_composite_device(struct usb_device *udev, - struct usb_interface *iface) +int usb_reset_composite_device(struct usb_device *udev) { int ret; int i; @@ -3385,9 +3383,6 @@ int usb_reset_composite_device(struct usb_device *udev, /* Prevent autosuspend during the reset */ usb_autoresume_device(udev); - if (iface && iface->condition != USB_INTERFACE_BINDING) - iface = NULL; - if (config) { for (i = 0; i < config->desc.bNumInterfaces; ++i) { struct usb_interface *cintf = config->interface[i]; diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 08d3a13fec2c..670e4cbd1f06 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -1172,8 +1172,7 @@ int usb_stor_port_reset(struct us_data *us) result = -EIO; US_DEBUGP("No reset during disconnect\n"); } else { - result = usb_reset_composite_device( - us->pusb_dev, us->pusb_intf); + result = usb_reset_composite_device(us->pusb_dev); US_DEBUGP("usb_reset_composite_device returns %d\n", result); } diff --git a/include/linux/usb.h b/include/linux/usb.h index 8429d08bd2fd..c74cc64bddc8 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -497,8 +497,7 @@ extern int usb_lock_device_for_reset(struct usb_device *udev, /* USB port reset for device reinitialization */ extern int usb_reset_device(struct usb_device *dev); -extern int usb_reset_composite_device(struct usb_device *dev, - struct usb_interface *iface); +extern int usb_reset_composite_device(struct usb_device *dev); extern struct usb_device *usb_find_device(u16 vendor_id, u16 product_id); -- cgit v1.2.3 From 742120c63138651c898614001cb58cd607401eac Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Wed, 18 Jun 2008 22:00:29 +0800 Subject: USB: fix usb_reset_device and usb_reset_composite_device(take 3) This patch renames the existing usb_reset_device in hub.c to usb_reset_and_verify_device and renames the existing usb_reset_composite_device to usb_reset_device. Also the new usb_reset_and_verify_device does't need to be EXPORTED . The idea of the patch is that external interface driver should warn the other interfaces' driver of the same device before and after reseting the usb device. One interface driver shoud call _old_ usb_reset_composite_device instead of _old_ usb_reset_device since it can't assume the device contains only one interface. The _old_ usb_reset_composite_device is safe for single interface device also. we rename the two functions to make the change easily. This patch is under guideline from Alan Stern. Signed-off-by: Ming Lei --- drivers/hid/usbhid/hid-core.c | 2 +- drivers/usb/core/devio.c | 2 +- drivers/usb/core/hub.c | 33 +++++++++++++++++---------------- drivers/usb/storage/transport.c | 4 ++-- include/linux/usb.h | 5 ++--- 5 files changed, 23 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 69fa79b6b51c..27fe4d8912cb 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -122,7 +122,7 @@ static void hid_reset(struct work_struct *work) dev_dbg(&usbhid->intf->dev, "resetting device\n"); rc = rc_lock = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf); if (rc_lock >= 0) { - rc = usb_reset_composite_device(hid_to_usb_dev(hid)); + rc = usb_reset_device(hid_to_usb_dev(hid)); if (rc_lock) usb_unlock_device(hid_to_usb_dev(hid)); } diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index bc1cce5cf758..e09935acae80 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -872,7 +872,7 @@ static int proc_connectinfo(struct dev_state *ps, void __user *arg) static int proc_resetdevice(struct dev_state *ps) { - return usb_reset_composite_device(ps->dev); + return usb_reset_device(ps->dev); } static int proc_setintf(struct dev_state *ps, void __user *arg) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 207c33d369be..bb3ecc4c08f2 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -135,6 +135,8 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem); #define HUB_DEBOUNCE_STABLE 100 +static int usb_reset_and_verify_device(struct usb_device *udev); + static inline char *portspeed(int portstatus) { if (portstatus & (1 << USB_PORT_FEAT_HIGHSPEED)) @@ -1971,7 +1973,7 @@ static int finish_port_resume(struct usb_device *udev) * resumed. */ if (udev->reset_resume) - status = usb_reset_device(udev); + status = usb_reset_and_verify_device(udev); /* 10.5.4.5 says be sure devices in the tree are still there. * For now let's assume the device didn't go crazy on resume, @@ -2030,7 +2032,7 @@ static int finish_port_resume(struct usb_device *udev) * to it will be lost. Using the USB_PERSIST facility, the device can be * made to appear as if it had not disconnected. * - * This facility can be dangerous. Although usb_reset_device() makes + * This facility can be dangerous. Although usb_reset_and_verify_device() makes * every effort to insure that the same device is present after the * reset as before, it cannot provide a 100% guarantee. Furthermore it's * quite possible for a device to remain unaltered but its media to be @@ -2140,7 +2142,7 @@ int usb_port_resume(struct usb_device *udev) hub_port_logical_disconnect(hub, port1); } else if (udev->reset_resume) { dev_dbg(&udev->dev, "reset-resume\n"); - status = usb_reset_device(udev); + status = usb_reset_and_verify_device(udev); } return status; } @@ -2321,7 +2323,7 @@ static int hub_set_address(struct usb_device *udev, int devnum) * Returns device in USB_STATE_ADDRESS, except on error. * * If this is called for an already-existing device (as part of - * usb_reset_device), the caller must own the device lock. For a + * usb_reset_and_verify_device), the caller must own the device lock. For a * newly detected device that is not accessible through any global * pointers, it's not necessary to lock the device. */ @@ -2638,7 +2640,7 @@ hub_power_remaining (struct usb_hub *hub) * This routine is called when: * a port connection-change occurs; * a port enable-change occurs (often caused by EMI); - * usb_reset_device() encounters changed descriptors (as from + * usb_reset_and_verify_device() encounters changed descriptors (as from * a firmware download) * caller already locked the hub */ @@ -2712,7 +2714,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, #endif } else { - status = usb_reset_composite_device(udev); + status = usb_reset_device(udev); } usb_unlock_device(udev); @@ -2940,7 +2942,7 @@ static void hub_events(void) dev_dbg (hub_dev, "resetting for error %d\n", hub->error); - ret = usb_reset_composite_device(hdev); + ret = usb_reset_device(hdev); if (ret) { dev_dbg (hub_dev, "error resetting hub: %d\n", ret); @@ -3233,12 +3235,12 @@ static int descriptors_changed(struct usb_device *udev, } /** - * usb_reset_device - perform a USB port reset to reinitialize a device + * usb_reset_and_verify_device - perform a USB port reset to reinitialize a device * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) * * WARNING - don't use this routine to reset a composite device * (one with multiple interfaces owned by separate drivers)! - * Use usb_reset_composite_device() instead. + * Use usb_reset_device() instead. * * Do a port reset, reassign the device's address, and establish its * former operating configuration. If the reset fails, or the device's @@ -3262,7 +3264,7 @@ static int descriptors_changed(struct usb_device *udev, * holding the device lock because these tasks should always call * usb_autopm_resume_device(), thereby preventing any unwanted autoresume. */ -int usb_reset_device(struct usb_device *udev) +static int usb_reset_and_verify_device(struct usb_device *udev) { struct usb_device *parent_hdev = udev->parent; struct usb_hub *parent_hub; @@ -3350,24 +3352,23 @@ re_enumerate: hub_port_logical_disconnect(parent_hub, port1); return -ENODEV; } -EXPORT_SYMBOL_GPL(usb_reset_device); /** - * usb_reset_composite_device - warn interface drivers and perform a USB port reset + * usb_reset_device - warn interface drivers and perform a USB port reset * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) * * Warns all drivers bound to registered interfaces (using their pre_reset * method), performs the port reset, and then lets the drivers know that * the reset is over (using their post_reset method). * - * Return value is the same as for usb_reset_device(). + * Return value is the same as for usb_reset_and_verify_device(). * * The caller must own the device lock. For example, it's safe to use * this from a driver probe() routine after downloading new firmware. * For calls that might not occur during probe(), drivers should lock * the device using usb_lock_device_for_reset(). */ -int usb_reset_composite_device(struct usb_device *udev) +int usb_reset_device(struct usb_device *udev) { int ret; int i; @@ -3397,7 +3398,7 @@ int usb_reset_composite_device(struct usb_device *udev) } } - ret = usb_reset_device(udev); + ret = usb_reset_and_verify_device(udev); if (config) { for (i = config->desc.bNumInterfaces - 1; i >= 0; --i) { @@ -3416,4 +3417,4 @@ int usb_reset_composite_device(struct usb_device *udev) usb_autosuspend_device(udev); return ret; } -EXPORT_SYMBOL_GPL(usb_reset_composite_device); +EXPORT_SYMBOL_GPL(usb_reset_device); diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 670e4cbd1f06..fcbbfdb7b2b0 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -1172,8 +1172,8 @@ int usb_stor_port_reset(struct us_data *us) result = -EIO; US_DEBUGP("No reset during disconnect\n"); } else { - result = usb_reset_composite_device(us->pusb_dev); - US_DEBUGP("usb_reset_composite_device returns %d\n", + result = usb_reset_device(us->pusb_dev); + US_DEBUGP("usb_reset_device returns %d\n", result); } if (rc_lock) diff --git a/include/linux/usb.h b/include/linux/usb.h index c74cc64bddc8..3cc8db5254d1 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -497,7 +497,6 @@ extern int usb_lock_device_for_reset(struct usb_device *udev, /* USB port reset for device reinitialization */ extern int usb_reset_device(struct usb_device *dev); -extern int usb_reset_composite_device(struct usb_device *dev); extern struct usb_device *usb_find_device(u16 vendor_id, u16 product_id); @@ -957,9 +956,9 @@ struct usbdrv_wrap { * @resume: Called when the device is being resumed by the system. * @reset_resume: Called when the suspended device has been reset instead * of being resumed. - * @pre_reset: Called by usb_reset_composite_device() when the device + * @pre_reset: Called by usb_reset_device() when the device * is about to be reset. - * @post_reset: Called by usb_reset_composite_device() after the device + * @post_reset: Called by usb_reset_device() after the device * has been reset * @id_table: USB drivers use ID table to support hotplugging. * Export this with MODULE_DEVICE_TABLE(usb,...). This must be set -- cgit v1.2.3 From 78d9a487ee961c356e1a934d9a92eca38ffb3a70 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 23 Jun 2008 16:00:40 -0400 Subject: USB: Force unbinding of drivers lacking reset_resume or other methods This patch (as1024) takes care of a FIXME issue: Drivers that don't have the necessary suspend, resume, reset_resume, pre_reset, or post_reset methods will be unbound and their interface reprobed when one of the unsupported events occurs. This is made slightly more difficult by the fact that bind operations won't work during a system sleep transition. So instead the code has to defer the operation until the transition ends. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 131 ++++++++++++++++++++++++++++++++++++++++------ drivers/usb/core/hub.c | 27 +++++++--- drivers/usb/core/usb.h | 2 + include/linux/usb.h | 1 + 4 files changed, 140 insertions(+), 21 deletions(-) (limited to 'include') diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 8da1a56659be..ddb54e14a5c5 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -201,6 +201,7 @@ static int usb_probe_interface(struct device *dev) intf = to_usb_interface(dev); udev = interface_to_usbdev(intf); + intf->needs_binding = 0; if (udev->authorized == 0) { dev_err(&intf->dev, "Device is not authorized for usage\n"); @@ -311,6 +312,7 @@ int usb_driver_claim_interface(struct usb_driver *driver, dev->driver = &driver->drvwrap.driver; usb_set_intfdata(iface, priv); + iface->needs_binding = 0; usb_pm_lock(udev); iface->condition = USB_INTERFACE_BOUND; @@ -772,6 +774,104 @@ void usb_deregister(struct usb_driver *driver) } EXPORT_SYMBOL_GPL(usb_deregister); + +/* Forced unbinding of a USB interface driver, either because + * it doesn't support pre_reset/post_reset/reset_resume or + * because it doesn't support suspend/resume. + * + * The caller must hold @intf's device's lock, but not its pm_mutex + * and not @intf->dev.sem. + */ +void usb_forced_unbind_intf(struct usb_interface *intf) +{ + struct usb_driver *driver = to_usb_driver(intf->dev.driver); + + dev_dbg(&intf->dev, "forced unbind\n"); + usb_driver_release_interface(driver, intf); + + /* Mark the interface for later rebinding */ + intf->needs_binding = 1; +} + +/* Delayed forced unbinding of a USB interface driver and scan + * for rebinding. + * + * The caller must hold @intf's device's lock, but not its pm_mutex + * and not @intf->dev.sem. + * + * FIXME: The caller must block system sleep transitions. + */ +void usb_rebind_intf(struct usb_interface *intf) +{ + int rc; + + /* Delayed unbind of an existing driver */ + if (intf->dev.driver) { + struct usb_driver *driver = + to_usb_driver(intf->dev.driver); + + dev_dbg(&intf->dev, "forced unbind\n"); + usb_driver_release_interface(driver, intf); + } + + /* Try to rebind the interface */ + intf->needs_binding = 0; + rc = device_attach(&intf->dev); + if (rc < 0) + dev_warn(&intf->dev, "rebind failed: %d\n", rc); +} + +#define DO_UNBIND 0 +#define DO_REBIND 1 + +/* Unbind drivers for @udev's interfaces that don't support suspend/resume, + * or rebind interfaces that have been unbound, according to @action. + * + * The caller must hold @udev's device lock. + * FIXME: For rebinds, the caller must block system sleep transitions. + */ +static void do_unbind_rebind(struct usb_device *udev, int action) +{ + struct usb_host_config *config; + int i; + struct usb_interface *intf; + struct usb_driver *drv; + + config = udev->actconfig; + if (config) { + for (i = 0; i < config->desc.bNumInterfaces; ++i) { + intf = config->interface[i]; + switch (action) { + case DO_UNBIND: + if (intf->dev.driver) { + drv = to_usb_driver(intf->dev.driver); + if (!drv->suspend || !drv->resume) + usb_forced_unbind_intf(intf); + } + break; + case DO_REBIND: + if (intf->needs_binding) { + + /* FIXME: The next line is needed because we are going to probe + * the interface, but as far as the PM core is concerned the + * interface is still suspended. The problem wouldn't exist + * if we could rebind the interface during the interface's own + * resume() call, but at the time the usb_device isn't locked! + * + * The real solution will be to carry this out during the device's + * complete() callback. Until that is implemented, we have to + * use this hack. + */ +// intf->dev.power.sleeping = 0; + + usb_rebind_intf(intf); + } + break; + } + } + } +} + #ifdef CONFIG_PM /* Caller has locked udev's pm_mutex */ @@ -841,7 +941,7 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg) goto done; driver = to_usb_driver(intf->dev.driver); - if (driver->suspend && driver->resume) { + if (driver->suspend) { status = driver->suspend(intf, msg); if (status == 0) mark_quiesced(intf); @@ -849,12 +949,10 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg) dev_err(&intf->dev, "%s error %d\n", "suspend", status); } else { - /* - * FIXME else if there's no suspend method, disconnect... - * Not possible if auto_pm is set... - */ - dev_warn(&intf->dev, "no suspend for driver %s?\n", - driver->name); + /* Later we will unbind the driver and reprobe */ + intf->needs_binding = 1; + dev_warn(&intf->dev, "no %s for driver %s?\n", + "suspend", driver->name); mark_quiesced(intf); } @@ -878,10 +976,12 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume) goto done; /* Can't resume it if it doesn't have a driver. */ - if (intf->condition == USB_INTERFACE_UNBOUND) { - status = -ENOTCONN; + if (intf->condition == USB_INTERFACE_UNBOUND) + goto done; + + /* Don't resume if the interface is marked for rebinding */ + if (intf->needs_binding) goto done; - } driver = to_usb_driver(intf->dev.driver); if (reset_resume) { @@ -891,7 +991,7 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume) dev_err(&intf->dev, "%s error %d\n", "reset_resume", status); } else { - /* status = -EOPNOTSUPP; */ + intf->needs_binding = 1; dev_warn(&intf->dev, "no %s for driver %s?\n", "reset_resume", driver->name); } @@ -902,7 +1002,7 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume) dev_err(&intf->dev, "%s error %d\n", "resume", status); } else { - /* status = -EOPNOTSUPP; */ + intf->needs_binding = 1; dev_warn(&intf->dev, "no %s for driver %s?\n", "resume", driver->name); } @@ -910,11 +1010,10 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume) done: dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status); - if (status == 0) + if (status == 0 && intf->condition == USB_INTERFACE_BOUND) mark_active(intf); - /* FIXME: Unbind the driver and reprobe if the resume failed - * (not possible if auto_pm is set) */ + /* Later we will unbind the driver and/or reprobe, if necessary */ return status; } @@ -1470,6 +1569,7 @@ int usb_external_suspend_device(struct usb_device *udev, pm_message_t msg) { int status; + do_unbind_rebind(udev, DO_UNBIND); usb_pm_lock(udev); udev->auto_pm = 0; status = usb_suspend_both(udev, msg); @@ -1497,6 +1597,7 @@ int usb_external_resume_device(struct usb_device *udev) status = usb_resume_both(udev); udev->last_busy = jiffies; usb_pm_unlock(udev); + do_unbind_rebind(udev, DO_REBIND); /* Now that the device is awake, we can start trying to autosuspend * it again. */ diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index bb3ecc4c08f2..f1efabbc1ca2 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3367,6 +3367,11 @@ re_enumerate: * this from a driver probe() routine after downloading new firmware. * For calls that might not occur during probe(), drivers should lock * the device using usb_lock_device_for_reset(). + * + * If an interface is currently being probed or disconnected, we assume + * its driver knows how to handle resets. For all other interfaces, + * if the driver doesn't have pre_reset and post_reset methods then + * we attempt to unbind it and rebind afterward. */ int usb_reset_device(struct usb_device *udev) { @@ -3388,12 +3393,17 @@ int usb_reset_device(struct usb_device *udev) for (i = 0; i < config->desc.bNumInterfaces; ++i) { struct usb_interface *cintf = config->interface[i]; struct usb_driver *drv; + int unbind = 0; if (cintf->dev.driver) { drv = to_usb_driver(cintf->dev.driver); - if (drv->pre_reset) - (drv->pre_reset)(cintf); - /* FIXME: Unbind if pre_reset returns an error or isn't defined */ + if (drv->pre_reset && drv->post_reset) + unbind = (drv->pre_reset)(cintf); + else if (cintf->condition == + USB_INTERFACE_BOUND) + unbind = 1; + if (unbind) + usb_forced_unbind_intf(cintf); } } } @@ -3404,13 +3414,18 @@ int usb_reset_device(struct usb_device *udev) for (i = config->desc.bNumInterfaces - 1; i >= 0; --i) { struct usb_interface *cintf = config->interface[i]; struct usb_driver *drv; + int rebind = cintf->needs_binding; - if (cintf->dev.driver) { + if (!rebind && cintf->dev.driver) { drv = to_usb_driver(cintf->dev.driver); if (drv->post_reset) - (drv->post_reset)(cintf); - /* FIXME: Unbind if post_reset returns an error or isn't defined */ + rebind = (drv->post_reset)(cintf); + else if (cintf->condition == + USB_INTERFACE_BOUND) + rebind = 1; } + if (rebind) + usb_rebind_intf(cintf); } } diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 1a8bc21c335e..d3eb0a29bca1 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -29,6 +29,8 @@ extern int usb_choose_configuration(struct usb_device *udev); extern void usb_kick_khubd(struct usb_device *dev); extern int usb_match_device(struct usb_device *dev, const struct usb_device_id *id); +extern void usb_forced_unbind_intf(struct usb_interface *intf); +extern void usb_rebind_intf(struct usb_interface *intf); extern int usb_hub_init(void); extern void usb_hub_cleanup(void); diff --git a/include/linux/usb.h b/include/linux/usb.h index 3cc8db5254d1..5811c5da69f9 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -160,6 +160,7 @@ struct usb_interface { unsigned is_active:1; /* the interface is not suspended */ unsigned sysfs_files_created:1; /* the sysfs attributes exist */ unsigned needs_remote_wakeup:1; /* driver requires remote wakeup */ + unsigned needs_binding:1; /* needs delayed unbind/rebind */ struct device dev; /* interface specific device info */ struct device *usb_dev; -- cgit v1.2.3 From 28c10af712d875f85c3b8f70aa7a47b77be0f27d Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 21 Jul 2008 16:49:34 -0700 Subject: ide: : use %r0 for outw_be() Use %r0 for outw_be() to make it match __raw_writew(). Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- include/asm-sparc/ide_64.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/ide_64.h b/include/asm-sparc/ide_64.h index 1282676da1cd..27921ccb3a1f 100644 --- a/include/asm-sparc/ide_64.h +++ b/include/asm-sparc/ide_64.h @@ -78,9 +78,9 @@ static inline void __ide_insw(void __iomem *port, void *dst, u32 count) static inline void outw_be(unsigned short w, void __iomem *addr) { - __asm__ __volatile__("stha %0, [%1] %2" + __asm__ __volatile__("stha %r0, [%1] %2" : /* no outputs */ - : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); + : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); } static inline void __ide_outsw(void __iomem *port, void *src, u32 count) -- cgit v1.2.3 From 8fbf3f30fe0700eff01d6ff8d058cd6f47d4da1b Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 21 Jul 2008 16:50:56 -0700 Subject: ide: : use __raw_{read,write}w() Use __raw_{read,write}w() in __ide_{in,out}sw(). Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- include/asm-sparc/ide_32.h | 30 ++++++++++-------------------- 1 file changed, 10 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/ide_32.h b/include/asm-sparc/ide_32.h index afd1736ed480..81a00b60bcce 100644 --- a/include/asm-sparc/ide_32.h +++ b/include/asm-sparc/ide_32.h @@ -28,50 +28,40 @@ #define __ide_mm_outsw __ide_outsw #define __ide_mm_outsl __ide_outsl -static inline void __ide_insw(unsigned long port, - void *dst, - unsigned long count) +static inline void __ide_insw(void __iomem *port, void *dst, u32 count) { - volatile unsigned short *data_port; /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */ u16 *ps = dst; u32 *pi; - data_port = (volatile unsigned short *)port; - if(((unsigned long)ps) & 0x2) { - *ps++ = *data_port; + *ps++ = __raw_readw(port); count--; } pi = (u32 *)ps; while(count >= 2) { u32 w; - w = (*data_port) << 16; - w |= (*data_port); + w = __raw_readw(port) << 16; + w |= __raw_readw(port); *pi++ = w; count -= 2; } ps = (u16 *)pi; if(count) - *ps++ = *data_port; + *ps++ = __raw_readw(port); /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */ } -static inline void __ide_outsw(unsigned long port, - const void *src, - unsigned long count) +static inline void __ide_outsw(void __iomem *port, const void *src, u32 count) { - volatile unsigned short *data_port; /* unsigned long end = (unsigned long)src + (count << 1); */ const u16 *ps = src; const u32 *pi; - data_port = (volatile unsigned short *)port; - if(((unsigned long)src) & 0x2) { - *data_port = *ps++; + __raw_writew(*ps++, port); count--; } pi = (const u32 *)ps; @@ -79,13 +69,13 @@ static inline void __ide_outsw(unsigned long port, u32 w; w = *pi++; - *data_port = (w >> 16); - *data_port = w; + __raw_writew((w >> 16), port); + __raw_writew(w, port); count -= 2; } ps = (const u16 *)pi; if(count) - *data_port = *ps; + __raw_writew(*ps, port); /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */ } -- cgit v1.2.3 From edc83d4f3e971b322c557604d064b68374a7b77b Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 21 Jul 2008 16:51:43 -0700 Subject: ide: : use __raw_{read,write}w() Use __raw_{read,write}w() in __ide_{in,out}sw() and remove no longer needed {in,out}w_be(). Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- include/asm-sparc/ide_64.h | 34 ++++++++-------------------------- 1 file changed, 8 insertions(+), 26 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/ide_64.h b/include/asm-sparc/ide_64.h index 27921ccb3a1f..99eee9b0ba2f 100644 --- a/include/asm-sparc/ide_64.h +++ b/include/asm-sparc/ide_64.h @@ -35,17 +35,6 @@ #define __ide_mm_outsw __ide_outsw #define __ide_mm_outsl __ide_outsl -static inline unsigned int inw_be(void __iomem *addr) -{ - unsigned int ret; - - __asm__ __volatile__("lduha [%1] %2, %0" - : "=r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - - return ret; -} - static inline void __ide_insw(void __iomem *port, void *dst, u32 count) { #ifdef DCACHE_ALIASING_POSSIBLE @@ -55,34 +44,27 @@ static inline void __ide_insw(void __iomem *port, void *dst, u32 count) u32 *pi; if(((u64)ps) & 0x2) { - *ps++ = inw_be(port); + *ps++ = __raw_readw(port); count--; } pi = (u32 *)ps; while(count >= 2) { u32 w; - w = inw_be(port) << 16; - w |= inw_be(port); + w = __raw_readw(port) << 16; + w |= __raw_readw(port); *pi++ = w; count -= 2; } ps = (u16 *)pi; if(count) - *ps++ = inw_be(port); + *ps++ = __raw_readw(port); #ifdef DCACHE_ALIASING_POSSIBLE __flush_dcache_range((unsigned long)dst, end); #endif } -static inline void outw_be(unsigned short w, void __iomem *addr) -{ - __asm__ __volatile__("stha %r0, [%1] %2" - : /* no outputs */ - : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); -} - static inline void __ide_outsw(void __iomem *port, void *src, u32 count) { #ifdef DCACHE_ALIASING_POSSIBLE @@ -92,7 +74,7 @@ static inline void __ide_outsw(void __iomem *port, void *src, u32 count) const u32 *pi; if(((u64)src) & 0x2) { - outw_be(*ps++, port); + __raw_writew(*ps++, port); count--; } pi = (const u32 *)ps; @@ -100,13 +82,13 @@ static inline void __ide_outsw(void __iomem *port, void *src, u32 count) u32 w; w = *pi++; - outw_be((w >> 16), port); - outw_be(w, port); + __raw_writew((w >> 16), port); + __raw_writew(w, port); count -= 2; } ps = (const u16 *)pi; if(count) - outw_be(*ps, port); + __raw_writew(*ps, port); #ifdef DCACHE_ALIASING_POSSIBLE __flush_dcache_range((unsigned long)src, end); -- cgit v1.2.3 From 6662327e190a20bd42867f11abca095badee56e1 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 21 Jul 2008 16:55:11 -0700 Subject: ide: merge with Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- include/asm-sparc/ide.h | 102 ++++++++++++++++++++++++++++++++++++++++++--- include/asm-sparc/ide_32.h | 85 ------------------------------------- include/asm-sparc/ide_64.h | 100 -------------------------------------------- 3 files changed, 97 insertions(+), 190 deletions(-) delete mode 100644 include/asm-sparc/ide_32.h delete mode 100644 include/asm-sparc/ide_64.h (limited to 'include') diff --git a/include/asm-sparc/ide.h b/include/asm-sparc/ide.h index a3c7f5ff270a..879fcec72dc1 100644 --- a/include/asm-sparc/ide.h +++ b/include/asm-sparc/ide.h @@ -1,8 +1,100 @@ -#ifndef ___ASM_SPARC_IDE_H -#define ___ASM_SPARC_IDE_H -#if defined(__sparc__) && defined(__arch64__) -#include +/* ide.h: SPARC PCI specific IDE glue. + * + * Copyright (C) 1997 David S. Miller (davem@davemloft.net) + * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) + * Adaptation from sparc64 version to sparc by Pete Zaitcev. + */ + +#ifndef _SPARC_IDE_H +#define _SPARC_IDE_H + +#ifdef __KERNEL__ + +#include +#ifdef CONFIG_SPARC64 +#include +#include +#include +#include #else -#include +#include +#include #endif + +#undef MAX_HWIFS +#define MAX_HWIFS 2 + +#define __ide_insl(data_reg, buffer, wcount) \ + __ide_insw(data_reg, buffer, (wcount)<<1) +#define __ide_outsl(data_reg, buffer, wcount) \ + __ide_outsw(data_reg, buffer, (wcount)<<1) + +/* On sparc, I/O ports and MMIO registers are accessed identically. */ +#define __ide_mm_insw __ide_insw +#define __ide_mm_insl __ide_insl +#define __ide_mm_outsw __ide_outsw +#define __ide_mm_outsl __ide_outsl + +static inline void __ide_insw(void __iomem *port, void *dst, u32 count) +{ +#if defined(CONFIG_SPARC64) && defined(DCACHE_ALIASING_POSSIBLE) + unsigned long end = (unsigned long)dst + (count << 1); #endif + u16 *ps = dst; + u32 *pi; + + if(((unsigned long)ps) & 0x2) { + *ps++ = __raw_readw(port); + count--; + } + pi = (u32 *)ps; + while(count >= 2) { + u32 w; + + w = __raw_readw(port) << 16; + w |= __raw_readw(port); + *pi++ = w; + count -= 2; + } + ps = (u16 *)pi; + if(count) + *ps++ = __raw_readw(port); + +#if defined(CONFIG_SPARC64) && defined(DCACHE_ALIASING_POSSIBLE) + __flush_dcache_range((unsigned long)dst, end); +#endif +} + +static inline void __ide_outsw(void __iomem *port, const void *src, u32 count) +{ +#if defined(CONFIG_SPARC64) && defined(DCACHE_ALIASING_POSSIBLE) + unsigned long end = (unsigned long)src + (count << 1); +#endif + const u16 *ps = src; + const u32 *pi; + + if(((unsigned long)src) & 0x2) { + __raw_writew(*ps++, port); + count--; + } + pi = (const u32 *)ps; + while(count >= 2) { + u32 w; + + w = *pi++; + __raw_writew((w >> 16), port); + __raw_writew(w, port); + count -= 2; + } + ps = (const u16 *)pi; + if(count) + __raw_writew(*ps, port); + +#if defined(CONFIG_SPARC64) && defined(DCACHE_ALIASING_POSSIBLE) + __flush_dcache_range((unsigned long)src, end); +#endif +} + +#endif /* __KERNEL__ */ + +#endif /* _SPARC_IDE_H */ diff --git a/include/asm-sparc/ide_32.h b/include/asm-sparc/ide_32.h deleted file mode 100644 index 81a00b60bcce..000000000000 --- a/include/asm-sparc/ide_32.h +++ /dev/null @@ -1,85 +0,0 @@ -/* ide.h: SPARC PCI specific IDE glue. - * - * Copyright (C) 1997 David S. Miller (davem@davemloft.net) - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - * Adaptation from sparc64 version to sparc by Pete Zaitcev. - */ - -#ifndef _SPARC_IDE_H -#define _SPARC_IDE_H - -#ifdef __KERNEL__ - -#include -#include -#include - -#undef MAX_HWIFS -#define MAX_HWIFS 2 - -#define __ide_insl(data_reg, buffer, wcount) \ - __ide_insw(data_reg, buffer, (wcount)<<1) -#define __ide_outsl(data_reg, buffer, wcount) \ - __ide_outsw(data_reg, buffer, (wcount)<<1) - -/* On sparc, I/O ports and MMIO registers are accessed identically. */ -#define __ide_mm_insw __ide_insw -#define __ide_mm_insl __ide_insl -#define __ide_mm_outsw __ide_outsw -#define __ide_mm_outsl __ide_outsl - -static inline void __ide_insw(void __iomem *port, void *dst, u32 count) -{ - /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */ - u16 *ps = dst; - u32 *pi; - - if(((unsigned long)ps) & 0x2) { - *ps++ = __raw_readw(port); - count--; - } - pi = (u32 *)ps; - while(count >= 2) { - u32 w; - - w = __raw_readw(port) << 16; - w |= __raw_readw(port); - *pi++ = w; - count -= 2; - } - ps = (u16 *)pi; - if(count) - *ps++ = __raw_readw(port); - - /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */ -} - -static inline void __ide_outsw(void __iomem *port, const void *src, u32 count) -{ - /* unsigned long end = (unsigned long)src + (count << 1); */ - const u16 *ps = src; - const u32 *pi; - - if(((unsigned long)src) & 0x2) { - __raw_writew(*ps++, port); - count--; - } - pi = (const u32 *)ps; - while(count >= 2) { - u32 w; - - w = *pi++; - __raw_writew((w >> 16), port); - __raw_writew(w, port); - count -= 2; - } - ps = (const u16 *)pi; - if(count) - __raw_writew(*ps, port); - - /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */ -} - -#endif /* __KERNEL__ */ - -#endif /* _SPARC_IDE_H */ diff --git a/include/asm-sparc/ide_64.h b/include/asm-sparc/ide_64.h deleted file mode 100644 index 99eee9b0ba2f..000000000000 --- a/include/asm-sparc/ide_64.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * ide.h: Ultra/PCI specific IDE glue. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - */ - -#ifndef _SPARC64_IDE_H -#define _SPARC64_IDE_H - -#ifdef __KERNEL__ - -#include -#include -#include -#include -#include - -#ifndef MAX_HWIFS -# ifdef CONFIG_BLK_DEV_IDEPCI -#define MAX_HWIFS 10 -# else -#define MAX_HWIFS 2 -# endif -#endif - -#define __ide_insl(data_reg, buffer, wcount) \ - __ide_insw(data_reg, buffer, (wcount)<<1) -#define __ide_outsl(data_reg, buffer, wcount) \ - __ide_outsw(data_reg, buffer, (wcount)<<1) - -/* On sparc64, I/O ports and MMIO registers are accessed identically. */ -#define __ide_mm_insw __ide_insw -#define __ide_mm_insl __ide_insl -#define __ide_mm_outsw __ide_outsw -#define __ide_mm_outsl __ide_outsl - -static inline void __ide_insw(void __iomem *port, void *dst, u32 count) -{ -#ifdef DCACHE_ALIASING_POSSIBLE - unsigned long end = (unsigned long)dst + (count << 1); -#endif - u16 *ps = dst; - u32 *pi; - - if(((u64)ps) & 0x2) { - *ps++ = __raw_readw(port); - count--; - } - pi = (u32 *)ps; - while(count >= 2) { - u32 w; - - w = __raw_readw(port) << 16; - w |= __raw_readw(port); - *pi++ = w; - count -= 2; - } - ps = (u16 *)pi; - if(count) - *ps++ = __raw_readw(port); - -#ifdef DCACHE_ALIASING_POSSIBLE - __flush_dcache_range((unsigned long)dst, end); -#endif -} - -static inline void __ide_outsw(void __iomem *port, void *src, u32 count) -{ -#ifdef DCACHE_ALIASING_POSSIBLE - unsigned long end = (unsigned long)src + (count << 1); -#endif - const u16 *ps = src; - const u32 *pi; - - if(((u64)src) & 0x2) { - __raw_writew(*ps++, port); - count--; - } - pi = (const u32 *)ps; - while(count >= 2) { - u32 w; - - w = *pi++; - __raw_writew((w >> 16), port); - __raw_writew(w, port); - count -= 2; - } - ps = (const u16 *)pi; - if(count) - __raw_writew(*ps, port); - -#ifdef DCACHE_ALIASING_POSSIBLE - __flush_dcache_range((unsigned long)src, end); -#endif -} - -#endif /* __KERNEL__ */ - -#endif /* _SPARC64_IDE_H */ -- cgit v1.2.3 From 18ad7a61e1b700dfe177fabf1c350b4f5d4da8ac Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Fri, 30 May 2008 22:51:33 +1000 Subject: of_gpio: Should use new header Since commit 7560fa60fcdcdb0da662f6a9fad9064b554ef46c (gpio: and "no GPIO support here" stubs) drivers can use GPIOs if they're available, but don't require them. This patch actually enables this feature. Signed-off-by: Wolfgang Grandegger Signed-off-by: Anton Vorontsov Signed-off-by: Benjamin Herrenschmidt --- include/linux/of_gpio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h index 2ee97e9877a7..67db101d0eb8 100644 --- a/include/linux/of_gpio.h +++ b/include/linux/of_gpio.h @@ -15,7 +15,7 @@ #define __LINUX_OF_GPIO_H #include -#include +#include #ifdef CONFIG_OF_GPIO -- cgit v1.2.3 From 4795b7801b07e1b7286edb0d9321433fc0eac6cc Mon Sep 17 00:00:00 2001 From: Christian Krafft Date: Wed, 16 Jul 2008 05:51:45 +1000 Subject: powerpc/cell: Add support for power button of future IBM cell blades This patch adds support for the power button on future IBM cell blades. It actually doesn't shut down the machine. Instead it exposes an input device /dev/input/event0 to userspace which sends KEY_POWER if power button has been pressed. haldaemon actually recognizes the button, so a plattform independent acpid replacement should handle it correctly. Signed-off-by: Christian Krafft Signed-off-by: Arnd Bergmann Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/cell/Kconfig | 8 ++ arch/powerpc/platforms/cell/Makefile | 2 + arch/powerpc/platforms/cell/cbe_powerbutton.c | 117 ++++++++++++++++++++++++++ include/asm-powerpc/pmi.h | 1 + 4 files changed, 128 insertions(+) create mode 100644 arch/powerpc/platforms/cell/cbe_powerbutton.c (limited to 'include') diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig index 2d1957bc450d..c14d7d8d96c8 100644 --- a/arch/powerpc/platforms/cell/Kconfig +++ b/arch/powerpc/platforms/cell/Kconfig @@ -91,6 +91,14 @@ config PPC_IBM_CELL_RESETBUTTON Support Pinhole Resetbutton on IBM Cell blades. This adds a method to trigger system reset via front panel pinhole button. +config PPC_IBM_CELL_POWERBUTTON + tristate "IBM Cell Blade power button" + depends on PPC_IBM_CELL_BLADE && PPC_PMI && INPUT_EVDEV + default y + help + Support Powerbutton on IBM Cell blades. + This will enable the powerbutton as an input device. + config CBE_THERM tristate "CBE thermal support" default m diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile index 7fcf09bd80b8..7fd830872c43 100644 --- a/arch/powerpc/platforms/cell/Makefile +++ b/arch/powerpc/platforms/cell/Makefile @@ -10,6 +10,8 @@ obj-$(CONFIG_CBE_CPUFREQ) += cbe-cpufreq.o cbe-cpufreq-y += cbe_cpufreq_pervasive.o cbe_cpufreq.o obj-$(CONFIG_CBE_CPUFREQ_SPU_GOVERNOR) += cpufreq_spudemand.o +obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON) += cbe_powerbutton.o + ifeq ($(CONFIG_SMP),y) obj-$(CONFIG_PPC_CELL_NATIVE) += smp.o endif diff --git a/arch/powerpc/platforms/cell/cbe_powerbutton.c b/arch/powerpc/platforms/cell/cbe_powerbutton.c new file mode 100644 index 000000000000..dcddaa5fcb66 --- /dev/null +++ b/arch/powerpc/platforms/cell/cbe_powerbutton.c @@ -0,0 +1,117 @@ +/* + * driver for powerbutton on IBM cell blades + * + * (C) Copyright IBM Corp. 2005-2008 + * + * Author: Christian Krafft + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include + +static struct input_dev *button_dev; +static struct platform_device *button_pdev; + +static void cbe_powerbutton_handle_pmi(pmi_message_t pmi_msg) +{ + BUG_ON(pmi_msg.type != PMI_TYPE_POWER_BUTTON); + + input_report_key(button_dev, KEY_POWER, 1); + input_sync(button_dev); + input_report_key(button_dev, KEY_POWER, 0); + input_sync(button_dev); +} + +static struct pmi_handler cbe_pmi_handler = { + .type = PMI_TYPE_POWER_BUTTON, + .handle_pmi_message = cbe_powerbutton_handle_pmi, +}; + +static int __init cbe_powerbutton_init(void) +{ + int ret = 0; + struct input_dev *dev; + + if (!machine_is_compatible("IBM,CBPLUS-1.0")) { + printk(KERN_ERR "%s: Not a cell blade.\n", __func__); + ret = -ENODEV; + goto out; + } + + dev = input_allocate_device(); + if (!dev) { + ret = -ENOMEM; + printk(KERN_ERR "%s: Not enough memory.\n", __func__); + goto out; + } + + set_bit(EV_KEY, dev->evbit); + set_bit(KEY_POWER, dev->keybit); + + dev->name = "Power Button"; + dev->id.bustype = BUS_HOST; + + /* this makes the button look like an acpi power button + * no clue whether anyone relies on that though */ + dev->id.product = 0x02; + dev->phys = "LNXPWRBN/button/input0"; + + button_pdev = platform_device_register_simple("power_button", 0, NULL, 0); + if (IS_ERR(button_pdev)) { + ret = PTR_ERR(button_pdev); + goto out_free_input; + } + + dev->dev.parent = &button_pdev->dev; + ret = input_register_device(dev); + if (ret) { + printk(KERN_ERR "%s: Failed to register device\n", __func__); + goto out_free_pdev; + } + + button_dev = dev; + + ret = pmi_register_handler(&cbe_pmi_handler); + if (ret) { + printk(KERN_ERR "%s: Failed to register with pmi.\n", __func__); + goto out_free_pdev; + } + + goto out; + +out_free_pdev: + platform_device_unregister(button_pdev); +out_free_input: + input_free_device(dev); +out: + return ret; +} + +static void __exit cbe_powerbutton_exit(void) +{ + pmi_unregister_handler(&cbe_pmi_handler); + platform_device_unregister(button_pdev); + input_free_device(button_dev); +} + +module_init(cbe_powerbutton_init); +module_exit(cbe_powerbutton_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Christian Krafft "); diff --git a/include/asm-powerpc/pmi.h b/include/asm-powerpc/pmi.h index e1dc090748df..b4e91fbf5081 100644 --- a/include/asm-powerpc/pmi.h +++ b/include/asm-powerpc/pmi.h @@ -30,6 +30,7 @@ #ifdef __KERNEL__ #define PMI_TYPE_FREQ_CHANGE 0x01 +#define PMI_TYPE_POWER_BUTTON 0x02 #define PMI_READ_TYPE 0 #define PMI_READ_DATA0 1 #define PMI_READ_DATA1 2 -- cgit v1.2.3 From 4f3dd8a06239c0a19d772a27c2f618dc2faadf4a Mon Sep 17 00:00:00 2001 From: Mark Nelson Date: Wed, 16 Jul 2008 05:51:47 +1000 Subject: powerpc/dma: Use the struct dma_attrs in iommu code Update iommu_alloc() to take the struct dma_attrs and pass them on to tce_build(). This change propagates down to the tce_build functions of all the platforms. Signed-off-by: Mark Nelson Signed-off-by: Arnd Bergmann Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/iommu.c | 13 ++++++++----- arch/powerpc/platforms/cell/iommu.c | 5 +++-- arch/powerpc/platforms/iseries/iommu.c | 3 ++- arch/powerpc/platforms/pasemi/iommu.c | 3 ++- arch/powerpc/platforms/pseries/iommu.c | 14 +++++++++----- arch/powerpc/sysdev/dart_iommu.c | 3 ++- include/asm-powerpc/machdep.h | 3 ++- 7 files changed, 28 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index 8c68ee9e5d1c..2385f68c1751 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -186,7 +186,8 @@ static unsigned long iommu_range_alloc(struct device *dev, static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl, void *page, unsigned int npages, enum dma_data_direction direction, - unsigned long mask, unsigned int align_order) + unsigned long mask, unsigned int align_order, + struct dma_attrs *attrs) { unsigned long entry, flags; dma_addr_t ret = DMA_ERROR_CODE; @@ -205,7 +206,7 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl, /* Put the TCEs in the HW table */ ppc_md.tce_build(tbl, entry, npages, (unsigned long)page & IOMMU_PAGE_MASK, - direction); + direction, attrs); /* Flush/invalidate TLB caches if necessary */ @@ -336,7 +337,8 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl, npages, entry, dma_addr); /* Insert into HW table */ - ppc_md.tce_build(tbl, entry, npages, vaddr & IOMMU_PAGE_MASK, direction); + ppc_md.tce_build(tbl, entry, npages, vaddr & IOMMU_PAGE_MASK, + direction, attrs); /* If we are in an open segment, try merging */ if (segstart != s) { @@ -573,7 +575,8 @@ dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl, align = PAGE_SHIFT - IOMMU_PAGE_SHIFT; dma_handle = iommu_alloc(dev, tbl, vaddr, npages, direction, - mask >> IOMMU_PAGE_SHIFT, align); + mask >> IOMMU_PAGE_SHIFT, align, + attrs); if (dma_handle == DMA_ERROR_CODE) { if (printk_ratelimit()) { printk(KERN_INFO "iommu_alloc failed, " @@ -642,7 +645,7 @@ void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl, nio_pages = size >> IOMMU_PAGE_SHIFT; io_order = get_iommu_order(size); mapping = iommu_alloc(dev, tbl, ret, nio_pages, DMA_BIDIRECTIONAL, - mask >> IOMMU_PAGE_SHIFT, io_order); + mask >> IOMMU_PAGE_SHIFT, io_order, NULL); if (mapping == DMA_ERROR_CODE) { free_pages((unsigned long)ret, order); return NULL; diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index eeacb3a52ca1..3b7078453e7f 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -173,7 +173,8 @@ static void invalidate_tce_cache(struct cbe_iommu *iommu, unsigned long *pte, } static void tce_build_cell(struct iommu_table *tbl, long index, long npages, - unsigned long uaddr, enum dma_data_direction direction) + unsigned long uaddr, enum dma_data_direction direction, + struct dma_attrs *attrs) { int i; unsigned long *io_pte, base_pte; @@ -519,7 +520,7 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np, __set_bit(0, window->table.it_map); tce_build_cell(&window->table, window->table.it_offset, 1, - (unsigned long)iommu->pad_page, DMA_TO_DEVICE); + (unsigned long)iommu->pad_page, DMA_TO_DEVICE, NULL); window->table.it_hint = window->table.it_blocksize; return window; diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c index ab5d8687c3cf..bc818e4e2033 100644 --- a/arch/powerpc/platforms/iseries/iommu.c +++ b/arch/powerpc/platforms/iseries/iommu.c @@ -42,7 +42,8 @@ #include static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages, - unsigned long uaddr, enum dma_data_direction direction) + unsigned long uaddr, enum dma_data_direction direction, + struct dma_attrs *attrs) { u64 rc; u64 tce, rpn; diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c index 86967bdd8774..70541b7a5013 100644 --- a/arch/powerpc/platforms/pasemi/iommu.c +++ b/arch/powerpc/platforms/pasemi/iommu.c @@ -85,7 +85,8 @@ static int iommu_table_iobmap_inited; static void iobmap_build(struct iommu_table *tbl, long index, long npages, unsigned long uaddr, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { u32 *ip; u32 rpn; diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 9a12908510fb..5377dd4b849a 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -50,7 +50,8 @@ static void tce_build_pSeries(struct iommu_table *tbl, long index, long npages, unsigned long uaddr, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { u64 proto_tce; u64 *tcep; @@ -95,7 +96,8 @@ static unsigned long tce_get_pseries(struct iommu_table *tbl, long index) static void tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages, unsigned long uaddr, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { u64 rc; u64 proto_tce, tce; @@ -127,7 +129,8 @@ static DEFINE_PER_CPU(u64 *, tce_page) = NULL; static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages, unsigned long uaddr, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { u64 rc; u64 proto_tce; @@ -136,7 +139,8 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long l, limit; if (npages == 1) { - tce_build_pSeriesLP(tbl, tcenum, npages, uaddr, direction); + tce_build_pSeriesLP(tbl, tcenum, npages, uaddr, + direction, attrs); return; } @@ -150,7 +154,7 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum, /* If allocation fails, fall back to the loop implementation */ if (!tcep) { tce_build_pSeriesLP(tbl, tcenum, npages, uaddr, - direction); + direction, attrs); return; } __get_cpu_var(tce_page) = tcep; diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index 005c2ecf976f..de8c8b542cfa 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -149,7 +149,8 @@ static void dart_flush(struct iommu_table *tbl) static void dart_build(struct iommu_table *tbl, long index, long npages, unsigned long uaddr, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { unsigned int *dp; unsigned int rpn; diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h index 989922621e35..1233d735fd28 100644 --- a/include/asm-powerpc/machdep.h +++ b/include/asm-powerpc/machdep.h @@ -80,7 +80,8 @@ struct machdep_calls { long index, long npages, unsigned long uaddr, - enum dma_data_direction direction); + enum dma_data_direction direction, + struct dma_attrs *attrs); void (*tce_free)(struct iommu_table *tbl, long index, long npages); -- cgit v1.2.3 From 059e4938f8b060b10c4352e6c45739473bc73267 Mon Sep 17 00:00:00 2001 From: Masakazu Mokuno Date: Thu, 17 Jul 2008 07:22:19 +1000 Subject: powerpc/ps3: Add a sub-match id to ps3_system_bus Add sub match id for ps3 system bus so that two different system bus devices can be connected to a shared device. Signed-off-by: Masakazu Mokuno Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/ps3/device-init.c | 1 + arch/powerpc/platforms/ps3/system-bus.c | 21 ++++++++++++++------- drivers/video/ps3fb.c | 1 + include/asm-powerpc/ps3.h | 7 +++++++ 4 files changed, 23 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c index 3866debfa3c4..ffdd8e963fbd 100644 --- a/arch/powerpc/platforms/ps3/device-init.c +++ b/arch/powerpc/platforms/ps3/device-init.c @@ -486,6 +486,7 @@ static int __init ps3_register_graphics_devices(void) return -ENOMEM; p->dev.match_id = PS3_MATCH_ID_GRAPHICS; + p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB; p->dev.dev_type = PS3_DEVICE_TYPE_IOC0; result = ps3_system_bus_device_register(&p->dev); diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index d66c3628a112..280ee88cb0b0 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -347,16 +347,23 @@ static int ps3_system_bus_match(struct device *_dev, struct ps3_system_bus_driver *drv = ps3_drv_to_system_bus_drv(_drv); struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); - result = dev->match_id == drv->match_id; + if (!dev->match_sub_id) + result = dev->match_id == drv->match_id; + else + result = dev->match_sub_id == drv->match_sub_id && + dev->match_id == drv->match_id; if (result) - pr_info("%s:%d: dev=%u(%s), drv=%u(%s): match\n", __func__, - __LINE__, dev->match_id, dev->core.bus_id, - drv->match_id, drv->core.name); + pr_info("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): match\n", + __func__, __LINE__, + dev->match_id, dev->match_sub_id, dev->core.bus_id, + drv->match_id, drv->match_sub_id, drv->core.name); else - pr_debug("%s:%d: dev=%u(%s), drv=%u(%s): miss\n", __func__, - __LINE__, dev->match_id, dev->core.bus_id, - drv->match_id, drv->core.name); + pr_debug("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): miss\n", + __func__, __LINE__, + dev->match_id, dev->match_sub_id, dev->core.bus_id, + drv->match_id, drv->match_sub_id, drv->core.name); + return result; } diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c index dc3af1c78c56..4b5d80771904 100644 --- a/drivers/video/ps3fb.c +++ b/drivers/video/ps3fb.c @@ -1297,6 +1297,7 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev) static struct ps3_system_bus_driver ps3fb_driver = { .match_id = PS3_MATCH_ID_GRAPHICS, + .match_sub_id = PS3_MATCH_SUB_ID_FB, .core.name = DEVICE_NAME, .core.owner = THIS_MODULE, .probe = ps3fb_probe, diff --git a/include/asm-powerpc/ps3.h b/include/asm-powerpc/ps3.h index 81ffe3b3c1ce..f9e34c493cbb 100644 --- a/include/asm-powerpc/ps3.h +++ b/include/asm-powerpc/ps3.h @@ -337,12 +337,18 @@ enum ps3_system_bus_device_type { PS3_DEVICE_TYPE_LPM, }; +enum ps3_match_sub_id { + /* for PS3_MATCH_ID_GRAPHICS */ + PS3_MATCH_SUB_ID_FB = 1, +}; + /** * struct ps3_system_bus_device - a device on the system bus */ struct ps3_system_bus_device { enum ps3_match_id match_id; + enum ps3_match_sub_id match_sub_id; enum ps3_system_bus_device_type dev_type; u64 bus_id; /* SB */ @@ -371,6 +377,7 @@ int ps3_close_hv_device(struct ps3_system_bus_device *dev); struct ps3_system_bus_driver { enum ps3_match_id match_id; + enum ps3_match_sub_id match_sub_id; struct device_driver core; int (*probe)(struct ps3_system_bus_device *); int (*remove)(struct ps3_system_bus_device *); -- cgit v1.2.3 From 6a2a24bb755405d5311efaaed865042477b26f30 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 17 Jul 2008 17:17:51 +1000 Subject: powerpc: Add a #define for aligning to a long-sized boundary Add a #define for aligning to a long-sized boundary. It would be nice to use sizeof(long) for this, but that requires generating the value with asm-offsets.c, and asm-offsets.c includes asm-compat.h and we descend into some sort of recursive include hell. Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- include/asm-powerpc/asm-compat.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-powerpc/asm-compat.h b/include/asm-powerpc/asm-compat.h index 8ec2e1da68bf..8f0fe7971949 100644 --- a/include/asm-powerpc/asm-compat.h +++ b/include/asm-powerpc/asm-compat.h @@ -22,6 +22,7 @@ #define PPC_STL stringify_in_c(std) #define PPC_LCMPI stringify_in_c(cmpdi) #define PPC_LONG stringify_in_c(.llong) +#define PPC_LONG_ALIGN stringify_in_c(.balign 8) #define PPC_TLNEI stringify_in_c(tdnei) #define PPC_LLARX stringify_in_c(ldarx) #define PPC_STLCX stringify_in_c(stdcx.) @@ -43,6 +44,7 @@ #define PPC_STL stringify_in_c(stw) #define PPC_LCMPI stringify_in_c(cmpwi) #define PPC_LONG stringify_in_c(.long) +#define PPC_LONG_ALIGN stringify_in_c(.balign 4) #define PPC_TLNEI stringify_in_c(twnei) #define PPC_LLARX stringify_in_c(lwarx) #define PPC_STLCX stringify_in_c(stwcx.) -- cgit v1.2.3 From 551c3c04b478b987ccd335f1a42362d571b1592d Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 17 Jul 2008 17:17:52 +1000 Subject: powerpc: Use PPC_LONG_ALIGN in uaccess.h Use the new PPC_LONG_ALIGN macro instead of passing an argument to the asm for consistency. Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- include/asm-powerpc/uaccess.h | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/asm-powerpc/uaccess.h b/include/asm-powerpc/uaccess.h index 1a0736f8803f..bd0fb8495154 100644 --- a/include/asm-powerpc/uaccess.h +++ b/include/asm-powerpc/uaccess.h @@ -6,6 +6,7 @@ #include #include +#include #include #include @@ -141,12 +142,11 @@ extern long __put_user_bad(void); " b 2b\n" \ ".previous\n" \ ".section __ex_table,\"a\"\n" \ - " .balign %5\n" \ + PPC_LONG_ALIGN "\n" \ PPC_LONG "1b,3b\n" \ ".previous" \ : "=r" (err) \ - : "r" (x), "b" (addr), "i" (-EFAULT), "0" (err),\ - "i"(sizeof(unsigned long))) + : "r" (x), "b" (addr), "i" (-EFAULT), "0" (err)) #ifdef __powerpc64__ #define __put_user_asm2(x, ptr, retval) \ @@ -162,13 +162,12 @@ extern long __put_user_bad(void); " b 3b\n" \ ".previous\n" \ ".section __ex_table,\"a\"\n" \ - " .balign %5\n" \ + PPC_LONG_ALIGN "\n" \ PPC_LONG "1b,4b\n" \ PPC_LONG "2b,4b\n" \ ".previous" \ : "=r" (err) \ - : "r" (x), "b" (addr), "i" (-EFAULT), "0" (err),\ - "i"(sizeof(unsigned long))) + : "r" (x), "b" (addr), "i" (-EFAULT), "0" (err)) #endif /* __powerpc64__ */ #define __put_user_size(x, ptr, size, retval) \ @@ -226,12 +225,11 @@ extern long __get_user_bad(void); " b 2b\n" \ ".previous\n" \ ".section __ex_table,\"a\"\n" \ - " .balign %5\n" \ + PPC_LONG_ALIGN "\n" \ PPC_LONG "1b,3b\n" \ ".previous" \ : "=r" (err), "=r" (x) \ - : "b" (addr), "i" (-EFAULT), "0" (err), \ - "i"(sizeof(unsigned long))) + : "b" (addr), "i" (-EFAULT), "0" (err)) #ifdef __powerpc64__ #define __get_user_asm2(x, addr, err) \ @@ -249,13 +247,12 @@ extern long __get_user_bad(void); " b 3b\n" \ ".previous\n" \ ".section __ex_table,\"a\"\n" \ - " .balign %5\n" \ + PPC_LONG_ALIGN "\n" \ PPC_LONG "1b,4b\n" \ PPC_LONG "2b,4b\n" \ ".previous" \ : "=r" (err), "=&r" (x) \ - : "b" (addr), "i" (-EFAULT), "0" (err), \ - "i"(sizeof(unsigned long))) + : "b" (addr), "i" (-EFAULT), "0" (err)) #endif /* __powerpc64__ */ #define __get_user_size(x, ptr, size, retval) \ -- cgit v1.2.3 From 1ed6af73440c5ec920884bb800685a8cab4ce847 Mon Sep 17 00:00:00 2001 From: Mark Nelson Date: Fri, 18 Jul 2008 23:03:34 +1000 Subject: powerpc/cell: Add DMA_ATTR_WEAK_ORDERING dma attribute and use in Cell IOMMU code Introduce a new dma attriblue DMA_ATTR_WEAK_ORDERING to use weak ordering on DMA mappings in the Cell processor. Add the code to the Cell's IOMMU implementation to use this code. Dynamic mappings can be weakly or strongly ordered on an individual basis but the fixed mapping has to be either completely strong or completely weak. This is currently decided by a kernel boot option (pass iommu_fixed=weak for a weakly ordered fixed linear mapping, strongly ordered is the default). Signed-off-by: Mark Nelson Signed-off-by: Arnd Bergmann Signed-off-by: Benjamin Herrenschmidt --- Documentation/DMA-attributes.txt | 9 +++ arch/powerpc/platforms/cell/iommu.c | 113 ++++++++++++++++++++++++++++++++++-- include/linux/dma-attrs.h | 1 + 3 files changed, 118 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt index 6d772f84b477..b768cc0e402b 100644 --- a/Documentation/DMA-attributes.txt +++ b/Documentation/DMA-attributes.txt @@ -22,3 +22,12 @@ ready and available in memory. The DMA of the "completion indication" could race with data DMA. Mapping the memory used for completion indications with DMA_ATTR_WRITE_BARRIER would prevent the race. +DMA_ATTR_WEAK_ORDERING +---------------------- + +DMA_ATTR_WEAK_ORDERING specifies that reads and writes to the mapping +may be weakly ordered, that is that reads and writes may pass each other. + +Since it is optional for platforms to implement DMA_ATTR_WEAK_ORDERING, +those that do not will simply ignore the attribute and exhibit default +behavior. diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 3b7078453e7f..208005ca262c 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -199,6 +199,8 @@ static void tce_build_cell(struct iommu_table *tbl, long index, long npages, base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW | (window->ioid & IOPTE_IOID_Mask); #endif + if (unlikely(dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))) + base_pte &= ~IOPTE_SO_RW; io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset); @@ -539,7 +541,9 @@ static struct cbe_iommu *cell_iommu_for_node(int nid) static unsigned long cell_dma_direct_offset; static unsigned long dma_iommu_fixed_base; -struct dma_mapping_ops dma_iommu_fixed_ops; + +/* iommu_fixed_is_weak is set if booted with iommu_fixed=weak */ +static int iommu_fixed_is_weak; static struct iommu_table *cell_get_iommu_table(struct device *dev) { @@ -563,6 +567,98 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev) return &window->table; } +/* A coherent allocation implies strong ordering */ + +static void *dma_fixed_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + if (iommu_fixed_is_weak) + return iommu_alloc_coherent(dev, cell_get_iommu_table(dev), + size, dma_handle, + device_to_mask(dev), flag, + dev->archdata.numa_node); + else + return dma_direct_ops.alloc_coherent(dev, size, dma_handle, + flag); +} + +static void dma_fixed_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle) +{ + if (iommu_fixed_is_weak) + iommu_free_coherent(cell_get_iommu_table(dev), size, vaddr, + dma_handle); + else + dma_direct_ops.free_coherent(dev, size, vaddr, dma_handle); +} + +static dma_addr_t dma_fixed_map_single(struct device *dev, void *ptr, + size_t size, + enum dma_data_direction direction, + struct dma_attrs *attrs) +{ + if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)) + return dma_direct_ops.map_single(dev, ptr, size, direction, + attrs); + else + return iommu_map_single(dev, cell_get_iommu_table(dev), ptr, + size, device_to_mask(dev), direction, + attrs); +} + +static void dma_fixed_unmap_single(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction, + struct dma_attrs *attrs) +{ + if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)) + dma_direct_ops.unmap_single(dev, dma_addr, size, direction, + attrs); + else + iommu_unmap_single(cell_get_iommu_table(dev), dma_addr, size, + direction, attrs); +} + +static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction, + struct dma_attrs *attrs) +{ + if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)) + return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs); + else + return iommu_map_sg(dev, cell_get_iommu_table(dev), sg, nents, + device_to_mask(dev), direction, attrs); +} + +static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction, + struct dma_attrs *attrs) +{ + if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)) + dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs); + else + iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents, direction, + attrs); +} + +static int dma_fixed_dma_supported(struct device *dev, u64 mask) +{ + return mask == DMA_64BIT_MASK; +} + +static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask); + +struct dma_mapping_ops dma_iommu_fixed_ops = { + .alloc_coherent = dma_fixed_alloc_coherent, + .free_coherent = dma_fixed_free_coherent, + .map_single = dma_fixed_map_single, + .unmap_single = dma_fixed_unmap_single, + .map_sg = dma_fixed_map_sg, + .unmap_sg = dma_fixed_unmap_sg, + .dma_supported = dma_fixed_dma_supported, + .set_dma_mask = dma_set_mask_and_switch, +}; + static void cell_dma_dev_setup_fixed(struct device *dev); static void cell_dma_dev_setup(struct device *dev) @@ -919,9 +1015,16 @@ static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, pr_debug("iommu: mapping 0x%lx pages from 0x%lx\n", fsize, fbase); - base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW + base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | (cell_iommu_get_ioid(np) & IOPTE_IOID_Mask); + if (iommu_fixed_is_weak) + pr_info("IOMMU: Using weak ordering for fixed mapping\n"); + else { + pr_info("IOMMU: Using strong ordering for fixed mapping\n"); + base_pte |= IOPTE_SO_RW; + } + for (uaddr = 0; uaddr < fsize; uaddr += (1 << 24)) { /* Don't touch the dynamic region */ ioaddr = uaddr + fbase; @@ -1037,9 +1140,6 @@ static int __init cell_iommu_fixed_mapping_init(void) cell_iommu_setup_window(iommu, np, dbase, dsize, 0); } - dma_iommu_fixed_ops = dma_direct_ops; - dma_iommu_fixed_ops.set_dma_mask = dma_set_mask_and_switch; - dma_iommu_ops.set_dma_mask = dma_set_mask_and_switch; set_pci_dma_ops(&dma_iommu_ops); @@ -1053,6 +1153,9 @@ static int __init setup_iommu_fixed(char *str) if (strcmp(str, "off") == 0) iommu_fixed_disabled = 1; + else if (strcmp(str, "weak") == 0) + iommu_fixed_is_weak = 1; + return 1; } __setup("iommu_fixed=", setup_iommu_fixed); diff --git a/include/linux/dma-attrs.h b/include/linux/dma-attrs.h index 1677e2bfa00c..71ad34eca6e3 100644 --- a/include/linux/dma-attrs.h +++ b/include/linux/dma-attrs.h @@ -12,6 +12,7 @@ */ enum dma_attr { DMA_ATTR_WRITE_BARRIER, + DMA_ATTR_WEAK_ORDERING, DMA_ATTR_MAX, }; -- cgit v1.2.3 From e105b8bfc769b0545b6f0f395179d1e43cbee822 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 21 Apr 2008 10:51:07 -0700 Subject: sysfs: add /sys/dev/{char,block} to lookup sysfs path by major:minor Why?: There are occasions where userspace would like to access sysfs attributes for a device but it may not know how sysfs has named the device or the path. For example what is the sysfs path for /dev/disk/by-id/ata-ST3160827AS_5MT004CK? With this change a call to stat(2) returns the major:minor then userspace can see that /sys/dev/block/8:32 links to /sys/block/sdc. What are the alternatives?: 1/ Add an ioctl to return the path: Doable, but sysfs is meant to reduce the need to proliferate ioctl interfaces into the kernel, so this seems counter productive. 2/ Use udev to create these symlinks: Also doable, but it adds a udev dependency to utilities that might be running in a limited environment like an initramfs. 3/ Do a full-tree search of sysfs. [kay.sievers@vrfy.org: fix duplicate registrations] [kay.sievers@vrfy.org: cleanup suggestions] Cc: Neil Brown Cc: Tejun Heo Acked-by: Kay Sievers Reviewed-by: SL Baur Acked-by: Kay Sievers Acked-by: Mark Lord Acked-by: H. Peter Anvin Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-dev | 20 +++++++++ Documentation/filesystems/sysfs.txt | 6 +++ block/genhd.c | 5 ++- drivers/base/class.c | 4 ++ drivers/base/core.c | 83 ++++++++++++++++++++++++++++++++++++- drivers/usb/core/devio.c | 5 +++ include/linux/device.h | 3 ++ 7 files changed, 124 insertions(+), 2 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-dev (limited to 'include') diff --git a/Documentation/ABI/testing/sysfs-dev b/Documentation/ABI/testing/sysfs-dev new file mode 100644 index 000000000000..a9f2b8b0530f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-dev @@ -0,0 +1,20 @@ +What: /sys/dev +Date: April 2008 +KernelVersion: 2.6.26 +Contact: Dan Williams +Description: The /sys/dev tree provides a method to look up the sysfs + path for a device using the information returned from + stat(2). There are two directories, 'block' and 'char', + beneath /sys/dev containing symbolic links with names of + the form ":". These links point to the + corresponding sysfs path for the given device. + + Example: + $ readlink /sys/dev/block/8:32 + ../../block/sdc + + Entries in /sys/dev/char and /sys/dev/block will be + dynamically created and destroyed as devices enter and + leave the system. + +Users: mdadm diff --git a/Documentation/filesystems/sysfs.txt b/Documentation/filesystems/sysfs.txt index 7f27b8f840d0..9e9c348275a9 100644 --- a/Documentation/filesystems/sysfs.txt +++ b/Documentation/filesystems/sysfs.txt @@ -248,6 +248,7 @@ The top level sysfs directory looks like: block/ bus/ class/ +dev/ devices/ firmware/ net/ @@ -274,6 +275,11 @@ fs/ contains a directory for some filesystems. Currently each filesystem wanting to export attributes must create its own hierarchy below fs/ (see ./fuse.txt for an example). +dev/ contains two directories char/ and block/. Inside these two +directories there are symlinks named :. These symlinks +point to the sysfs directory for the given device. /sys/dev provides a +quick way to lookup the sysfs interface for a device from the result of +a stat(2) operation. More information can driver-model specific features can be found in Documentation/driver-model/. diff --git a/block/genhd.c b/block/genhd.c index 9074f384b097..24e3fc9095fe 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -370,7 +370,10 @@ static struct kobject *base_probe(dev_t devt, int *part, void *data) static int __init genhd_device_init(void) { - int error = class_register(&block_class); + int error; + + block_class.dev_kobj = sysfs_dev_block_kobj; + error = class_register(&block_class); if (unlikely(error)) return error; bdev_map = kobj_map_init(base_probe, &block_class_lock); diff --git a/drivers/base/class.c b/drivers/base/class.c index e085af0ff94f..71ce3ff6bdf5 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -148,6 +148,10 @@ int class_register(struct class *cls) if (error) return error; + /* set the default /sys/dev directory for devices of this class */ + if (!cls->dev_kobj) + cls->dev_kobj = sysfs_dev_char_kobj; + #if defined(CONFIG_SYSFS_DEPRECATED) && defined(CONFIG_BLOCK) /* let the block class directory show up in the root of sysfs */ if (cls != &block_class) diff --git a/drivers/base/core.c b/drivers/base/core.c index ee0a51a3a41d..be9aba4dc2fb 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -27,6 +27,9 @@ int (*platform_notify)(struct device *dev) = NULL; int (*platform_notify_remove)(struct device *dev) = NULL; +static struct kobject *dev_kobj; +struct kobject *sysfs_dev_char_kobj; +struct kobject *sysfs_dev_block_kobj; #ifdef CONFIG_BLOCK static inline int device_is_not_partition(struct device *dev) @@ -775,6 +778,54 @@ int dev_set_name(struct device *dev, const char *fmt, ...) } EXPORT_SYMBOL_GPL(dev_set_name); +/** + * device_to_dev_kobj - select a /sys/dev/ directory for the device + * @dev: device + * + * By default we select char/ for new entries. Setting class->dev_obj + * to NULL prevents an entry from being created. class->dev_kobj must + * be set (or cleared) before any devices are registered to the class + * otherwise device_create_sys_dev_entry() and + * device_remove_sys_dev_entry() will disagree about the the presence + * of the link. + */ +static struct kobject *device_to_dev_kobj(struct device *dev) +{ + struct kobject *kobj; + + if (dev->class) + kobj = dev->class->dev_kobj; + else + kobj = sysfs_dev_char_kobj; + + return kobj; +} + +static int device_create_sys_dev_entry(struct device *dev) +{ + struct kobject *kobj = device_to_dev_kobj(dev); + int error = 0; + char devt_str[15]; + + if (kobj) { + format_dev_t(devt_str, dev->devt); + error = sysfs_create_link(kobj, &dev->kobj, devt_str); + } + + return error; +} + +static void device_remove_sys_dev_entry(struct device *dev) +{ + struct kobject *kobj = device_to_dev_kobj(dev); + char devt_str[15]; + + if (kobj) { + format_dev_t(devt_str, dev->devt); + sysfs_remove_link(kobj, devt_str); + } +} + /** * device_add - add device to device hierarchy. * @dev: device. @@ -829,6 +880,10 @@ int device_add(struct device *dev) error = device_create_file(dev, &devt_attr); if (error) goto ueventattrError; + + error = device_create_sys_dev_entry(dev); + if (error) + goto devtattrError; } error = device_add_class_symlinks(dev); @@ -872,6 +927,9 @@ int device_add(struct device *dev) AttrsError: device_remove_class_symlinks(dev); SymlinkError: + if (MAJOR(dev->devt)) + device_remove_sys_dev_entry(dev); + devtattrError: if (MAJOR(dev->devt)) device_remove_file(dev, &devt_attr); ueventattrError: @@ -948,8 +1006,10 @@ void device_del(struct device *dev) device_pm_remove(dev); if (parent) klist_del(&dev->knode_parent); - if (MAJOR(dev->devt)) + if (MAJOR(dev->devt)) { + device_remove_sys_dev_entry(dev); device_remove_file(dev, &devt_attr); + } if (dev->class) { device_remove_class_symlinks(dev); @@ -1074,7 +1134,25 @@ int __init devices_init(void) devices_kset = kset_create_and_add("devices", &device_uevent_ops, NULL); if (!devices_kset) return -ENOMEM; + dev_kobj = kobject_create_and_add("dev", NULL); + if (!dev_kobj) + goto dev_kobj_err; + sysfs_dev_block_kobj = kobject_create_and_add("block", dev_kobj); + if (!sysfs_dev_block_kobj) + goto block_kobj_err; + sysfs_dev_char_kobj = kobject_create_and_add("char", dev_kobj); + if (!sysfs_dev_char_kobj) + goto char_kobj_err; + return 0; + + char_kobj_err: + kobject_put(sysfs_dev_block_kobj); + block_kobj_err: + kobject_put(dev_kobj); + dev_kobj_err: + kset_unregister(devices_kset); + return -ENOMEM; } EXPORT_SYMBOL_GPL(device_for_each_child); @@ -1447,4 +1525,7 @@ void device_shutdown(void) dev->driver->shutdown(dev); } } + kobject_put(sysfs_dev_char_kobj); + kobject_put(sysfs_dev_block_kobj); + kobject_put(dev_kobj); } diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 54a350ccd033..6fbc8f5ab80c 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1792,6 +1792,11 @@ int __init usb_devio_init(void) usb_classdev_class = NULL; goto out; } + /* devices of this class shadow the major:minor of their parent + * device, so clear ->dev_kobj to prevent adding duplicate entries + * to /sys/dev + */ + usb_classdev_class->dev_kobj = NULL; usb_register_notify(&usbdev_nb); #endif diff --git a/include/linux/device.h b/include/linux/device.h index f71a78d123ae..e49aa74f248c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -193,6 +193,7 @@ struct class { struct semaphore sem; /* locks children, devices, interfaces */ struct class_attribute *class_attrs; struct device_attribute *dev_attrs; + struct kobject *dev_kobj; int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); @@ -205,6 +206,8 @@ struct class { struct pm_ops *pm; }; +extern struct kobject *sysfs_dev_block_kobj; +extern struct kobject *sysfs_dev_char_kobj; extern int __must_check class_register(struct class *class); extern void class_unregister(struct class *class); extern int class_for_each_device(struct class *class, void *data, -- cgit v1.2.3 From ccea44fadca396b0f89aed5bdeb60e4abb212566 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 21 May 2008 12:52:33 -0700 Subject: driver core: remove device_create() There are no more users of this, and it is racy. Use device_create_drvdata() or device_create_vargs() instead. Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 34 ---------------------------------- include/linux/device.h | 3 --- 2 files changed, 37 deletions(-) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index be9aba4dc2fb..4dc0d272f6d9 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1273,40 +1273,6 @@ struct device *device_create_drvdata(struct class *class, } EXPORT_SYMBOL_GPL(device_create_drvdata); -/** - * device_create - creates a device and registers it with sysfs - * @class: pointer to the struct class that this device should be registered to - * @parent: pointer to the parent struct device of this new device, if any - * @devt: the dev_t for the char device to be added - * @fmt: string for the device's name - * - * This function can be used by char device classes. A struct device - * will be created in sysfs, registered to the specified class. - * - * A "dev" file will be created, showing the dev_t for the device, if - * the dev_t is not 0,0. - * If a pointer to a parent struct device is passed in, the newly created - * struct device will be a child of that device in sysfs. - * The pointer to the struct device will be returned from the call. - * Any further sysfs files that might be required can be created using this - * pointer. - * - * Note: the struct class passed to this function must have previously - * been created with a call to class_create(). - */ -struct device *device_create(struct class *class, struct device *parent, - dev_t devt, const char *fmt, ...) -{ - va_list vargs; - struct device *dev; - - va_start(vargs, fmt); - dev = device_create_vargs(class, parent, devt, NULL, fmt, vargs); - va_end(vargs); - return dev; -} -EXPORT_SYMBOL_GPL(device_create); - static int __match_devt(struct device *dev, void *data) { dev_t *devt = data; diff --git a/include/linux/device.h b/include/linux/device.h index e49aa74f248c..a3ef5a2d4fbb 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -470,9 +470,6 @@ extern struct device *device_create_vargs(struct class *cls, void *drvdata, const char *fmt, va_list vargs); -extern struct device *device_create(struct class *cls, struct device *parent, - dev_t devt, const char *fmt, ...) - __attribute__((format(printf, 4, 5))); extern struct device *device_create_drvdata(struct class *cls, struct device *parent, dev_t devt, -- cgit v1.2.3 From 4e10673944a5c386378ff9d692ae37e19993f9d5 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 21 Jul 2008 20:03:34 -0700 Subject: device create: convert device_create_drvdata to device_create Now that device_create() has been audited, rename things back to the original call to be sane. Keep the device_create_drvdata macro around to make merges easier. Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 11 ++++------- include/linux/device.h | 9 ++++----- 2 files changed, 8 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index 4dc0d272f6d9..9ae28aa709d5 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1236,7 +1236,7 @@ error: EXPORT_SYMBOL_GPL(device_create_vargs); /** - * device_create_drvdata - creates a device and registers it with sysfs + * device_create - creates a device and registers it with sysfs * @class: pointer to the struct class that this device should be registered to * @parent: pointer to the parent struct device of this new device, if any * @devt: the dev_t for the char device to be added @@ -1257,11 +1257,8 @@ EXPORT_SYMBOL_GPL(device_create_vargs); * Note: the struct class passed to this function must have previously * been created with a call to class_create(). */ -struct device *device_create_drvdata(struct class *class, - struct device *parent, - dev_t devt, - void *drvdata, - const char *fmt, ...) +struct device *device_create(struct class *class, struct device *parent, + dev_t devt, void *drvdata, const char *fmt, ...) { va_list vargs; struct device *dev; @@ -1271,7 +1268,7 @@ struct device *device_create_drvdata(struct class *class, va_end(vargs); return dev; } -EXPORT_SYMBOL_GPL(device_create_drvdata); +EXPORT_SYMBOL_GPL(device_create); static int __match_devt(struct device *dev, void *data) { diff --git a/include/linux/device.h b/include/linux/device.h index a3ef5a2d4fbb..de178712e02c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -470,12 +470,11 @@ extern struct device *device_create_vargs(struct class *cls, void *drvdata, const char *fmt, va_list vargs); -extern struct device *device_create_drvdata(struct class *cls, - struct device *parent, - dev_t devt, - void *drvdata, - const char *fmt, ...) +extern struct device *device_create(struct class *cls, struct device *parent, + dev_t devt, void *drvdata, + const char *fmt, ...) __attribute__((format(printf, 5, 6))); +#define device_create_drvdata device_create extern void device_destroy(struct class *cls, dev_t devt); /* -- cgit v1.2.3 From 93562b537659fc0f63920fd4d9d24f54e434f4c4 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 22 May 2008 17:21:08 -0400 Subject: Driver Core: add ability for class_for_each_device to start in middle of list This mirrors the functionality that driver_for_each_device has as well. We add a start variable, and all callers of the function are fixed up at the same time. The block layer will be using this new functionality in a follow-on patch. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 21 +++++++++++++-------- drivers/i2c/i2c-core.c | 6 ++++-- drivers/ieee1394/nodemgr.c | 14 +++++++++----- drivers/power/apm_power.c | 2 +- drivers/power/power_supply_core.c | 4 ++-- include/linux/device.h | 3 ++- 6 files changed, 31 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/drivers/base/class.c b/drivers/base/class.c index 71ce3ff6bdf5..2eb7048003a8 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -256,11 +256,14 @@ char *make_class_name(const char *name, struct kobject *kobj) /** * class_for_each_device - device iterator * @class: the class we're iterating + * @start: the device to start with in the list, if any. * @data: data for the callback * @fn: function to be called for each device * * Iterate over @class's list of devices, and call @fn for each, - * passing it @data. + * passing it @data. If @start is set, the list iteration will start + * there, otherwise if it is NULL, the iteration starts at the + * beginning of the list. * * We check the return of @fn each time. If it returns anything * other than 0, we break out and return that value. @@ -269,8 +272,8 @@ char *make_class_name(const char *name, struct kobject *kobj) * re-acquired in @fn, otherwise it will self-deadlocking. For * example, calls to add or remove class members would be verboten. */ -int class_for_each_device(struct class *class, void *data, - int (*fn)(struct device *, void *)) +int class_for_each_device(struct class *class, struct device *start, + void *data, int (*fn)(struct device *, void *)) { struct device *dev; int error = 0; @@ -279,12 +282,14 @@ int class_for_each_device(struct class *class, void *data, return -EINVAL; down(&class->sem); list_for_each_entry(dev, &class->devices, node) { + if (start) { + if (start == dev) + start = NULL; + continue; + } dev = get_device(dev); - if (dev) { - error = fn(dev, data); - put_device(dev); - } else - error = -ENODEV; + error = fn(dev, data); + put_device(dev); if (error) break; } diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 7608df83d6d1..7bf38c418086 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -722,7 +722,8 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver) INIT_LIST_HEAD(&driver->clients); /* Walk the adapters that are already present */ - class_for_each_device(&i2c_adapter_class, driver, __attach_adapter); + class_for_each_device(&i2c_adapter_class, NULL, driver, + __attach_adapter); mutex_unlock(&core_lock); return 0; @@ -782,7 +783,8 @@ void i2c_del_driver(struct i2c_driver *driver) { mutex_lock(&core_lock); - class_for_each_device(&i2c_adapter_class, driver, __detach_adapter); + class_for_each_device(&i2c_adapter_class, NULL, driver, + __detach_adapter); driver_unregister(&driver->driver); pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name); diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 05710c7c1220..47c0d85e0f32 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -1453,7 +1453,8 @@ static void nodemgr_suspend_ne(struct node_entry *ne) ne->in_limbo = 1; WARN_ON(device_create_file(&ne->device, &dev_attr_ne_in_limbo)); - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_suspend); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_driver_suspend); } @@ -1462,7 +1463,8 @@ static void nodemgr_resume_ne(struct node_entry *ne) ne->in_limbo = 0; device_remove_file(&ne->device, &dev_attr_ne_in_limbo); - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_resume); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_driver_resume); HPSB_DEBUG("Node resumed: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx]", NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid); } @@ -1498,7 +1500,8 @@ static int __nodemgr_update_pdrv(struct device *dev, void *data) static void nodemgr_update_pdrv(struct node_entry *ne) { - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_update_pdrv); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_update_pdrv); } @@ -1591,7 +1594,8 @@ static void nodemgr_node_probe(struct host_info *hi, int generation) * while probes are time-consuming. (Well, those probes need some * improvement...) */ - class_for_each_device(&nodemgr_ne_class, ¶m, __nodemgr_node_probe); + class_for_each_device(&nodemgr_ne_class, NULL, ¶m, + __nodemgr_node_probe); /* If we had a bus reset while we were scanning the bus, it is * possible that we did not probe all nodes. In that case, we @@ -1826,7 +1830,7 @@ int nodemgr_for_each_host(void *data, int (*cb)(struct hpsb_host *, void *)) hip.cb = cb; hip.data = data; - error = class_for_each_device(&hpsb_host_class, &hip, + error = class_for_each_device(&hpsb_host_class, NULL, &hip, __nodemgr_for_each_host); return error; diff --git a/drivers/power/apm_power.c b/drivers/power/apm_power.c index a4892275659d..936bae560fa1 100644 --- a/drivers/power/apm_power.c +++ b/drivers/power/apm_power.c @@ -78,7 +78,7 @@ static void find_main_battery(void) main_battery = NULL; bp.main = main_battery; - error = class_for_each_device(power_supply_class, &bp, + error = class_for_each_device(power_supply_class, NULL, &bp, __find_main_battery); if (error) { main_battery = bp.main; diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index af1633eb3b70..cb1ccb472921 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -41,7 +41,7 @@ static void power_supply_changed_work(struct work_struct *work) dev_dbg(psy->dev, "%s\n", __func__); - class_for_each_device(power_supply_class, psy, + class_for_each_device(power_supply_class, NULL, psy, __power_supply_changed_work); power_supply_update_leds(psy); @@ -79,7 +79,7 @@ int power_supply_am_i_supplied(struct power_supply *psy) { int error; - error = class_for_each_device(power_supply_class, psy, + error = class_for_each_device(power_supply_class, NULL, psy, __power_supply_am_i_supplied); dev_dbg(psy->dev, "%s %d\n", __func__, error); diff --git a/include/linux/device.h b/include/linux/device.h index de178712e02c..6d5b351b29c9 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -210,7 +210,8 @@ extern struct kobject *sysfs_dev_block_kobj; extern struct kobject *sysfs_dev_char_kobj; extern int __must_check class_register(struct class *class); extern void class_unregister(struct class *class); -extern int class_for_each_device(struct class *class, void *data, +extern int class_for_each_device(struct class *class, struct device *start, + void *data, int (*fn)(struct device *dev, void *data)); extern struct device *class_find_device(struct class *class, void *data, int (*match)(struct device *, void *)); -- cgit v1.2.3 From 695794ae0c5bdd9bd06e35b118801e2e9be04f9e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 22 May 2008 17:21:08 -0400 Subject: Driver Core: add ability for class_find_device to start in middle of list This mirrors the functionality that driver_find_device has as well. We add a start variable, and all callers of the function are fixed up at the same time. The block layer will be using this new functionality in a follow-on patch. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 22 +++++++++++++--------- drivers/base/core.c | 2 +- drivers/ieee1394/nodemgr.c | 9 ++++++--- drivers/rtc/interface.c | 2 +- drivers/scsi/hosts.c | 3 ++- drivers/scsi/scsi_transport_iscsi.c | 4 ++-- drivers/spi/spi.c | 2 +- include/linux/device.h | 3 ++- 8 files changed, 28 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/drivers/base/class.c b/drivers/base/class.c index 2eb7048003a8..3918d0e432d4 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -302,6 +302,7 @@ EXPORT_SYMBOL_GPL(class_for_each_device); /** * class_find_device - device iterator for locating a particular device * @class: the class we're iterating + * @start: Device to begin with * @data: data for the match function * @match: function to check device * @@ -319,8 +320,9 @@ EXPORT_SYMBOL_GPL(class_for_each_device); * re-acquired in @match, otherwise it will self-deadlocking. For * example, calls to add or remove class members would be verboten. */ -struct device *class_find_device(struct class *class, void *data, - int (*match)(struct device *, void *)) +struct device *class_find_device(struct class *class, struct device *start, + void *data, + int (*match)(struct device *, void *)) { struct device *dev; int found = 0; @@ -330,15 +332,17 @@ struct device *class_find_device(struct class *class, void *data, down(&class->sem); list_for_each_entry(dev, &class->devices, node) { + if (start) { + if (start == dev) + start = NULL; + continue; + } dev = get_device(dev); - if (dev) { - if (match(dev, data)) { - found = 1; - break; - } else - put_device(dev); - } else + if (match(dev, data)) { + found = 1; break; + } else + put_device(dev); } up(&class->sem); diff --git a/drivers/base/core.c b/drivers/base/core.c index 9ae28aa709d5..9f05de6f80b5 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1289,7 +1289,7 @@ void device_destroy(struct class *class, dev_t devt) { struct device *dev; - dev = class_find_device(class, &devt, __match_devt); + dev = class_find_device(class, NULL, &devt, __match_devt); if (dev) { put_device(dev); device_unregister(dev); diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 47c0d85e0f32..994a21e5a0aa 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -754,7 +754,8 @@ static void nodemgr_remove_uds(struct node_entry *ne) */ mutex_lock(&nodemgr_serialize_remove_uds); for (;;) { - dev = class_find_device(&nodemgr_ud_class, ne, __match_ne); + dev = class_find_device(&nodemgr_ud_class, NULL, ne, + __match_ne); if (!dev) break; ud = container_of(dev, struct unit_directory, unit_dev); @@ -901,7 +902,8 @@ static struct node_entry *find_entry_by_guid(u64 guid) struct device *dev; struct node_entry *ne; - dev = class_find_device(&nodemgr_ne_class, &guid, __match_ne_guid); + dev = class_find_device(&nodemgr_ne_class, NULL, &guid, + __match_ne_guid); if (!dev) return NULL; ne = container_of(dev, struct node_entry, node_dev); @@ -940,7 +942,8 @@ static struct node_entry *find_entry_by_nodeid(struct hpsb_host *host, param.host = host; param.nodeid = nodeid; - dev = class_find_device(&nodemgr_ne_class, ¶m, __match_ne_nodeid); + dev = class_find_device(&nodemgr_ne_class, NULL, ¶m, + __match_ne_nodeid); if (!dev) return NULL; ne = container_of(dev, struct node_entry, node_dev); diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 58b7336640ff..d397fa5f3a91 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -345,7 +345,7 @@ struct rtc_device *rtc_class_open(char *name) struct device *dev; struct rtc_device *rtc = NULL; - dev = class_find_device(rtc_class, name, __rtc_match); + dev = class_find_device(rtc_class, NULL, name, __rtc_match); if (dev) rtc = to_rtc_device(dev); diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 35cd892dce04..78dad28b70d5 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -466,7 +466,8 @@ struct Scsi_Host *scsi_host_lookup(unsigned short hostnum) struct device *cdev; struct Scsi_Host *shost = ERR_PTR(-ENXIO); - cdev = class_find_device(&shost_class, &hostnum, __scsi_host_match); + cdev = class_find_device(&shost_class, NULL, &hostnum, + __scsi_host_match); if (cdev) { shost = scsi_host_get(class_to_shost(cdev)); put_device(cdev); diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 3af7cbcc5c5d..06748f318cd5 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -170,7 +170,7 @@ iscsi_create_endpoint(int dd_size) int err; for (id = 1; id < ISCSI_MAX_EPID; id++) { - dev = class_find_device(&iscsi_endpoint_class, &id, + dev = class_find_device(&iscsi_endpoint_class, NULL, &id, iscsi_match_epid); if (!dev) break; @@ -222,7 +222,7 @@ struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle) struct iscsi_endpoint *ep; struct device *dev; - dev = class_find_device(&iscsi_endpoint_class, &handle, + dev = class_find_device(&iscsi_endpoint_class, NULL, &handle, iscsi_match_epid); if (!dev) return NULL; diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1ad12afc6ba0..1771b2456bfa 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -502,7 +502,7 @@ struct spi_master *spi_busnum_to_master(u16 bus_num) struct device *dev; struct spi_master *master = NULL; - dev = class_find_device(&spi_master_class, &bus_num, + dev = class_find_device(&spi_master_class, NULL, &bus_num, __spi_master_match); if (dev) master = container_of(dev, struct spi_master, dev); diff --git a/include/linux/device.h b/include/linux/device.h index 6d5b351b29c9..c1f72984875f 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -213,7 +213,8 @@ extern void class_unregister(struct class *class); extern int class_for_each_device(struct class *class, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); -extern struct device *class_find_device(struct class *class, void *data, +extern struct device *class_find_device(struct class *class, + struct device *start, void *data, int (*match)(struct device *, void *)); struct class_attribute { -- cgit v1.2.3 From 7c71448b8aa80123fc521563d5f7c63a099d97ab Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 22 Jan 2008 18:17:41 -0500 Subject: class: move driver core specific parts to a private structure This moves the portions of struct class that are dynamic (kobject and lock and lists) out of the main structure and into a dynamic, private, structure. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/base.h | 27 ++++++++++++++++ drivers/base/class.c | 87 ++++++++++++++++++++++++++++---------------------- drivers/base/core.c | 57 +++++++++++++++++---------------- include/linux/device.h | 7 ++-- 4 files changed, 107 insertions(+), 71 deletions(-) (limited to 'include') diff --git a/drivers/base/base.h b/drivers/base/base.h index 2c9ae43e2219..0ec372a67762 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -36,6 +36,33 @@ struct driver_private { }; #define to_driver(obj) container_of(obj, struct driver_private, kobj) + +/** + * struct class_private - structure to hold the private to the driver core portions of the class structure. + * + * @subsys - the struct kset that defines this class. This is the main kobject + * @children - list of class_devices associated with this class + * @devices - list of devices associated with this class + * @interfaces - list of class_interfaces associated with this class + * @class_dirs - + * @sem - semaphore to protect the children, devices, and interfaces lists. + * @class - pointer back to the struct class that this structure is associated + * with. + * + * This structure is the one that is the actual kobject allowing struct + * class to be statically allocated safely. Nothing outside of the driver + * core should ever touch these fields. + */ +struct class_private { + struct kset subsys; + struct list_head devices; + struct list_head interfaces; + struct kset class_dirs; + struct semaphore sem; + struct class *class; +}; +#define to_class(obj) container_of(obj, struct class_private, subsys.kobj) + /* initialisation functions */ extern int devices_init(void); extern int buses_init(void); diff --git a/drivers/base/class.c b/drivers/base/class.c index 3918d0e432d4..06f09c929a91 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -21,17 +21,16 @@ #include "base.h" #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr) -#define to_class(obj) container_of(obj, struct class, subsys.kobj) static ssize_t class_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct class_attribute *class_attr = to_class_attr(attr); - struct class *dc = to_class(kobj); + struct class_private *cp = to_class(kobj); ssize_t ret = -EIO; if (class_attr->show) - ret = class_attr->show(dc, buf); + ret = class_attr->show(cp->class, buf); return ret; } @@ -39,17 +38,18 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) { struct class_attribute *class_attr = to_class_attr(attr); - struct class *dc = to_class(kobj); + struct class_private *cp = to_class(kobj); ssize_t ret = -EIO; if (class_attr->store) - ret = class_attr->store(dc, buf, count); + ret = class_attr->store(cp->class, buf, count); return ret; } static void class_release(struct kobject *kobj) { - struct class *class = to_class(kobj); + struct class_private *cp = to_class(kobj); + struct class *class = cp->class; pr_debug("class '%s': release.\n", class->name); @@ -78,7 +78,7 @@ int class_create_file(struct class *cls, const struct class_attribute *attr) { int error; if (cls) - error = sysfs_create_file(&cls->subsys.kobj, &attr->attr); + error = sysfs_create_file(&cls->p->subsys.kobj, &attr->attr); else error = -EINVAL; return error; @@ -87,21 +87,20 @@ int class_create_file(struct class *cls, const struct class_attribute *attr) void class_remove_file(struct class *cls, const struct class_attribute *attr) { if (cls) - sysfs_remove_file(&cls->subsys.kobj, &attr->attr); + sysfs_remove_file(&cls->p->subsys.kobj, &attr->attr); } static struct class *class_get(struct class *cls) { if (cls) - return container_of(kset_get(&cls->subsys), - struct class, subsys); - return NULL; + kset_get(&cls->p->subsys); + return cls; } static void class_put(struct class *cls) { if (cls) - kset_put(&cls->subsys); + kset_put(&cls->p->subsys); } static int add_class_attrs(struct class *cls) @@ -136,17 +135,23 @@ static void remove_class_attrs(struct class *cls) int class_register(struct class *cls) { + struct class_private *cp; int error; pr_debug("device class '%s': registering\n", cls->name); - INIT_LIST_HEAD(&cls->devices); - INIT_LIST_HEAD(&cls->interfaces); - kset_init(&cls->class_dirs); - init_MUTEX(&cls->sem); - error = kobject_set_name(&cls->subsys.kobj, "%s", cls->name); - if (error) + cp = kzalloc(sizeof(*cp), GFP_KERNEL); + if (!cp) + return -ENOMEM; + INIT_LIST_HEAD(&cp->devices); + INIT_LIST_HEAD(&cp->interfaces); + kset_init(&cp->class_dirs); + init_MUTEX(&cp->sem); + error = kobject_set_name(&cp->subsys.kobj, "%s", cls->name); + if (error) { + kfree(cp); return error; + } /* set the default /sys/dev directory for devices of this class */ if (!cls->dev_kobj) @@ -155,17 +160,21 @@ int class_register(struct class *cls) #if defined(CONFIG_SYSFS_DEPRECATED) && defined(CONFIG_BLOCK) /* let the block class directory show up in the root of sysfs */ if (cls != &block_class) - cls->subsys.kobj.kset = class_kset; + cp->subsys.kobj.kset = class_kset; #else - cls->subsys.kobj.kset = class_kset; + cp->subsys.kobj.kset = class_kset; #endif - cls->subsys.kobj.ktype = &class_ktype; + cp->subsys.kobj.ktype = &class_ktype; + cp->class = cls; + cls->p = cp; - error = kset_register(&cls->subsys); - if (!error) { - error = add_class_attrs(class_get(cls)); - class_put(cls); + error = kset_register(&cp->subsys); + if (error) { + kfree(cp); + return error; } + error = add_class_attrs(class_get(cls)); + class_put(cls); return error; } @@ -173,7 +182,7 @@ void class_unregister(struct class *cls) { pr_debug("device class '%s': unregistering\n", cls->name); remove_class_attrs(cls); - kset_unregister(&cls->subsys); + kset_unregister(&cls->p->subsys); } static void class_create_release(struct class *cls) @@ -280,8 +289,8 @@ int class_for_each_device(struct class *class, struct device *start, if (!class) return -EINVAL; - down(&class->sem); - list_for_each_entry(dev, &class->devices, node) { + down(&class->p->sem); + list_for_each_entry(dev, &class->p->devices, node) { if (start) { if (start == dev) start = NULL; @@ -293,7 +302,7 @@ int class_for_each_device(struct class *class, struct device *start, if (error) break; } - up(&class->sem); + up(&class->p->sem); return error; } @@ -330,8 +339,8 @@ struct device *class_find_device(struct class *class, struct device *start, if (!class) return NULL; - down(&class->sem); - list_for_each_entry(dev, &class->devices, node) { + down(&class->p->sem); + list_for_each_entry(dev, &class->p->devices, node) { if (start) { if (start == dev) start = NULL; @@ -344,7 +353,7 @@ struct device *class_find_device(struct class *class, struct device *start, } else put_device(dev); } - up(&class->sem); + up(&class->p->sem); return found ? dev : NULL; } @@ -362,13 +371,13 @@ int class_interface_register(struct class_interface *class_intf) if (!parent) return -EINVAL; - down(&parent->sem); - list_add_tail(&class_intf->node, &parent->interfaces); + down(&parent->p->sem); + list_add_tail(&class_intf->node, &parent->p->interfaces); if (class_intf->add_dev) { - list_for_each_entry(dev, &parent->devices, node) + list_for_each_entry(dev, &parent->p->devices, node) class_intf->add_dev(dev, class_intf); } - up(&parent->sem); + up(&parent->p->sem); return 0; } @@ -381,13 +390,13 @@ void class_interface_unregister(struct class_interface *class_intf) if (!parent) return; - down(&parent->sem); + down(&parent->p->sem); list_del_init(&class_intf->node); if (class_intf->remove_dev) { - list_for_each_entry(dev, &parent->devices, node) + list_for_each_entry(dev, &parent->p->devices, node) class_intf->remove_dev(dev, class_intf); } - up(&parent->sem); + up(&parent->p->sem); class_put(parent); } diff --git a/drivers/base/core.c b/drivers/base/core.c index 9f05de6f80b5..64c150b5a883 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -551,7 +551,7 @@ static struct kobject *get_device_parent(struct device *dev, { /* class devices without a parent live in /sys/class// */ if (dev->class && (!parent || parent->class != dev->class)) - return &dev->class->subsys.kobj; + return &dev->class->p->subsys.kobj; /* all other devices keep their parent */ else if (parent) return &parent->kobj; @@ -597,13 +597,13 @@ static struct kobject *get_device_parent(struct device *dev, parent_kobj = &parent->kobj; /* find our class-directory at the parent and reference it */ - spin_lock(&dev->class->class_dirs.list_lock); - list_for_each_entry(k, &dev->class->class_dirs.list, entry) + spin_lock(&dev->class->p->class_dirs.list_lock); + list_for_each_entry(k, &dev->class->p->class_dirs.list, entry) if (k->parent == parent_kobj) { kobj = kobject_get(k); break; } - spin_unlock(&dev->class->class_dirs.list_lock); + spin_unlock(&dev->class->p->class_dirs.list_lock); if (kobj) return kobj; @@ -611,7 +611,7 @@ static struct kobject *get_device_parent(struct device *dev, k = kobject_create(); if (!k) return NULL; - k->kset = &dev->class->class_dirs; + k->kset = &dev->class->p->class_dirs; retval = kobject_add(k, parent_kobj, "%s", dev->class->name); if (retval < 0) { kobject_put(k); @@ -630,7 +630,7 @@ static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir) { /* see if we live in a "glue" directory */ if (!glue_dir || !dev->class || - glue_dir->kset != &dev->class->class_dirs) + glue_dir->kset != &dev->class->p->class_dirs) return; kobject_put(glue_dir); @@ -657,17 +657,17 @@ static int device_add_class_symlinks(struct device *dev) if (!dev->class) return 0; - error = sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj, + error = sysfs_create_link(&dev->kobj, &dev->class->p->subsys.kobj, "subsystem"); if (error) goto out; #ifdef CONFIG_SYSFS_DEPRECATED /* stacked class devices need a symlink in the class directory */ - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->subsys.kobj && device_is_not_partition(dev)) { - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link(&dev->class->p->subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out_subsys; } @@ -704,12 +704,12 @@ out_device: if (dev->parent && device_is_not_partition(dev)) sysfs_remove_link(&dev->kobj, "device"); out_busid: - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->subsys.kobj && device_is_not_partition(dev)) - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->subsys.kobj, dev->bus_id); #else /* link in the class directory pointing to the device */ - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, + error = sysfs_create_link(&dev->class->p->subsys.kobj, &dev->kobj, dev->bus_id); if (error) goto out_subsys; @@ -723,7 +723,7 @@ out_busid: return 0; out_busid: - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->subsys.kobj, dev->bus_id); #endif out_subsys: @@ -749,14 +749,14 @@ static void device_remove_class_symlinks(struct device *dev) sysfs_remove_link(&dev->kobj, "device"); } - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->subsys.kobj && device_is_not_partition(dev)) - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->subsys.kobj, dev->bus_id); #else if (dev->parent && device_is_not_partition(dev)) sysfs_remove_link(&dev->kobj, "device"); - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->subsys.kobj, dev->bus_id); #endif sysfs_remove_link(&dev->kobj, "subsystem"); @@ -904,15 +904,16 @@ int device_add(struct device *dev) klist_add_tail(&dev->knode_parent, &parent->klist_children); if (dev->class) { - down(&dev->class->sem); + down(&dev->class->p->sem); /* tie the class to the device */ - list_add_tail(&dev->node, &dev->class->devices); + list_add_tail(&dev->node, &dev->class->p->devices); /* notify any interfaces that the device is here */ - list_for_each_entry(class_intf, &dev->class->interfaces, node) + list_for_each_entry(class_intf, &dev->class->p->interfaces, + node) if (class_intf->add_dev) class_intf->add_dev(dev, class_intf); - up(&dev->class->sem); + up(&dev->class->p->sem); } Done: put_device(dev); @@ -1013,14 +1014,15 @@ void device_del(struct device *dev) if (dev->class) { device_remove_class_symlinks(dev); - down(&dev->class->sem); + down(&dev->class->p->sem); /* notify any interfaces that the device is now gone */ - list_for_each_entry(class_intf, &dev->class->interfaces, node) + list_for_each_entry(class_intf, &dev->class->p->interfaces, + node) if (class_intf->remove_dev) class_intf->remove_dev(dev, class_intf); /* remove the device from the class list */ list_del_init(&dev->node); - up(&dev->class->sem); + up(&dev->class->p->sem); } device_remove_file(dev, &uevent_attr); device_remove_attrs(dev); @@ -1348,11 +1350,12 @@ int device_rename(struct device *dev, char *new_name) } #else if (dev->class) { - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link(&dev->class->p->subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out; - sysfs_remove_link(&dev->class->subsys.kobj, old_device_name); + sysfs_remove_link(&dev->class->p->subsys.kobj, + old_device_name); } #endif diff --git a/include/linux/device.h b/include/linux/device.h index c1f72984875f..b0556082179b 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -35,6 +35,7 @@ struct device; struct device_driver; struct driver_private; struct class; +struct class_private; struct bus_type; struct bus_type_private; @@ -186,11 +187,6 @@ struct class { const char *name; struct module *owner; - struct kset subsys; - struct list_head devices; - struct list_head interfaces; - struct kset class_dirs; - struct semaphore sem; /* locks children, devices, interfaces */ struct class_attribute *class_attrs; struct device_attribute *dev_attrs; struct kobject *dev_kobj; @@ -204,6 +200,7 @@ struct class { int (*resume)(struct device *dev); struct pm_ops *pm; + struct class_private *p; }; extern struct kobject *sysfs_dev_block_kobj; -- cgit v1.2.3 From d2a3b9146e4f40c2e872d7567c996ef95083d802 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Wed, 28 May 2008 09:28:39 -0700 Subject: class: add lockdep infrastructure This adds the infrastructure to properly handle lockdep issues when the internal class semaphore is changed to a mutex. Matthew wrote the original patch, and Greg fixed it up to work properly with the class_create() function. From: Matthew Wilcox Cc: Kay Sievers Cc: Dave Young Cc: Andrew Morton Cc: James Bottomley Cc: Peter Zijlstra Cc: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 11 ++++++----- include/linux/device.h | 25 +++++++++++++++++++++++-- 2 files changed, 29 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/drivers/base/class.c b/drivers/base/class.c index d24d21114ccb..89000566690c 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -134,7 +134,7 @@ static void remove_class_attrs(struct class *cls) } } -int class_register(struct class *cls) +int __class_register(struct class *cls, struct lock_class_key *key) { struct class_private *cp; int error; @@ -178,6 +178,7 @@ int class_register(struct class *cls) class_put(cls); return error; } +EXPORT_SYMBOL_GPL(__class_register); void class_unregister(struct class *cls) { @@ -203,7 +204,8 @@ static void class_create_release(struct class *cls) * Note, the pointer created here is to be destroyed when finished by * making a call to class_destroy(). */ -struct class *class_create(struct module *owner, const char *name) +struct class *__class_create(struct module *owner, const char *name, + struct lock_class_key *key) { struct class *cls; int retval; @@ -218,7 +220,7 @@ struct class *class_create(struct module *owner, const char *name) cls->owner = owner; cls->class_release = class_create_release; - retval = class_register(cls); + retval = __class_register(cls, key); if (retval) goto error; @@ -228,6 +230,7 @@ error: kfree(cls); return ERR_PTR(retval); } +EXPORT_SYMBOL_GPL(__class_create); /** * class_destroy - destroys a struct class structure @@ -412,9 +415,7 @@ int __init classes_init(void) EXPORT_SYMBOL_GPL(class_create_file); EXPORT_SYMBOL_GPL(class_remove_file); -EXPORT_SYMBOL_GPL(class_register); EXPORT_SYMBOL_GPL(class_unregister); -EXPORT_SYMBOL_GPL(class_create); EXPORT_SYMBOL_GPL(class_destroy); EXPORT_SYMBOL_GPL(class_interface_register); diff --git a/include/linux/device.h b/include/linux/device.h index b0556082179b..0e1d24c2ed41 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -205,8 +206,18 @@ struct class { extern struct kobject *sysfs_dev_block_kobj; extern struct kobject *sysfs_dev_char_kobj; -extern int __must_check class_register(struct class *class); +extern int __must_check __class_register(struct class *class, + struct lock_class_key *key); extern void class_unregister(struct class *class); + +/* This is a #define to keep the compiler from merging different + * instances of the __key variable */ +#define class_register(class) \ +({ \ + static struct lock_class_key __key; \ + __class_register(class, &__key); \ +}) + extern int class_for_each_device(struct class *class, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); @@ -239,9 +250,19 @@ struct class_interface { extern int __must_check class_interface_register(struct class_interface *); extern void class_interface_unregister(struct class_interface *); -extern struct class *class_create(struct module *owner, const char *name); +extern struct class * __must_check __class_create(struct module *owner, + const char *name, + struct lock_class_key *key); extern void class_destroy(struct class *cls); +/* This is a #define to keep the compiler from merging different + * instances of the __key variable */ +#define class_create(owner, name) \ +({ \ + static struct lock_class_key __key; \ + __class_create(owner, name, &__key); \ +}) + /* * The type of device, "struct device" is embedded in. A class * or bus can contain devices of different types -- cgit v1.2.3 From aab0de245150c09e61c30962feb16aacde508dc3 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 2 May 2008 06:02:41 +0200 Subject: driver core: remove KOBJ_NAME_LEN define Kobjects do not have a limit in name size since a while, so stop pretending that they do. Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- arch/arm/plat-omap/mailbox.c | 2 +- arch/sparc64/kernel/vio.c | 2 +- drivers/message/fusion/mptbase.c | 3 ++- drivers/message/fusion/mptbase.h | 4 ++-- drivers/message/fusion/mptfc.c | 4 ++-- drivers/pci/hotplug/acpiphp.h | 4 ++-- drivers/scsi/hosts.c | 4 ++-- drivers/scsi/scsi_transport_fc.c | 9 +++++---- drivers/scsi/scsi_transport_iscsi.c | 4 ++-- fs/partitions/check.c | 2 +- include/linux/device.h | 3 +-- include/linux/kobject.h | 1 - include/linux/spi/spi.h | 2 +- include/scsi/scsi_host.h | 2 +- include/scsi/scsi_transport_fc.h | 4 ++-- include/scsi/scsi_transport_iscsi.h | 2 +- 16 files changed, 26 insertions(+), 26 deletions(-) (limited to 'include') diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c index 6f33f58bca45..848fdcafaa28 100644 --- a/arch/arm/plat-omap/mailbox.c +++ b/arch/arm/plat-omap/mailbox.c @@ -334,7 +334,7 @@ static int omap_mbox_init(struct omap_mbox *mbox) } mbox->dev.class = &omap_mbox_class; - strlcpy(mbox->dev.bus_id, mbox->name, KOBJ_NAME_LEN); + strlcpy(mbox->dev.bus_id, mbox->name, BUS_ID_SIZE); dev_set_drvdata(&mbox->dev, mbox); ret = device_register(&mbox->dev); diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c index e78b3517940b..ecbb8b618b8c 100644 --- a/arch/sparc64/kernel/vio.c +++ b/arch/sparc64/kernel/vio.c @@ -224,7 +224,7 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, if (!strcmp(type, "domain-services-port")) bus_id_name = "ds"; - if (strlen(bus_id_name) >= KOBJ_NAME_LEN - 4) { + if (strlen(bus_id_name) >= BUS_ID_SIZE - 4) { printk(KERN_ERR "VIO: bus_id_name [%s] is too long.\n", bus_id_name); return NULL; diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 75e599b85b64..34402c47027e 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1670,7 +1670,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) INIT_DELAYED_WORK(&ioc->fault_reset_work, mpt_fault_reset_work); spin_lock_init(&ioc->fault_reset_work_lock); - snprintf(ioc->reset_work_q_name, KOBJ_NAME_LEN, "mpt_poll_%d", ioc->id); + snprintf(ioc->reset_work_q_name, sizeof(ioc->reset_work_q_name), + "mpt_poll_%d", ioc->id); ioc->reset_work_q = create_singlethread_workqueue(ioc->reset_work_q_name); if (!ioc->reset_work_q) { diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index 6adab648dbb9..dff048cfa101 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -707,12 +707,12 @@ typedef struct _MPT_ADAPTER u8 fc_link_speed[2]; spinlock_t fc_rescan_work_lock; struct work_struct fc_rescan_work; - char fc_rescan_work_q_name[KOBJ_NAME_LEN]; + char fc_rescan_work_q_name[20]; struct workqueue_struct *fc_rescan_work_q; struct scsi_cmnd **ScsiLookup; spinlock_t scsi_lookup_lock; - char reset_work_q_name[KOBJ_NAME_LEN]; + char reset_work_q_name[20]; struct workqueue_struct *reset_work_q; struct delayed_work fault_reset_work; spinlock_t fault_reset_work_lock; diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index fc31ca6829d8..b36cae9ec6db 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -1326,8 +1326,8 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* initialize workqueue */ - snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d", - sh->host_no); + snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), + "mptfc_wq_%d", sh->host_no); ioc->fc_rescan_work_q = create_singlethread_workqueue(ioc->fc_rescan_work_q_name); if (!ioc->fc_rescan_work_q) diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index eecf7cbf4139..5a58b075dd8d 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -36,7 +36,7 @@ #define _ACPIPHP_H #include -#include /* for KOBJ_NAME_LEN */ +#include #include #include @@ -51,7 +51,7 @@ #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) /* name size which is used for entries in pcihpfs */ -#define SLOT_NAME_SIZE KOBJ_NAME_LEN /* {_SUN} */ +#define SLOT_NAME_SIZE 20 /* {_SUN} */ struct acpiphp_bridge; struct acpiphp_slot; diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 78dad28b70d5..fed0b02ebc1d 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -232,8 +232,8 @@ int scsi_add_host(struct Scsi_Host *shost, struct device *dev) } if (shost->transportt->create_work_queue) { - snprintf(shost->work_q_name, KOBJ_NAME_LEN, "scsi_wq_%d", - shost->host_no); + snprintf(shost->work_q_name, sizeof(shost->work_q_name), + "scsi_wq_%d", shost->host_no); shost->work_q = create_singlethread_workqueue( shost->work_q_name); if (!shost->work_q) { diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 5fd64e70029d..a272b9a2c869 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -417,15 +417,16 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev, fc_host->next_vport_number = 0; fc_host->npiv_vports_inuse = 0; - snprintf(fc_host->work_q_name, KOBJ_NAME_LEN, "fc_wq_%d", - shost->host_no); + snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), + "fc_wq_%d", shost->host_no); fc_host->work_q = create_singlethread_workqueue( fc_host->work_q_name); if (!fc_host->work_q) return -ENOMEM; - snprintf(fc_host->devloss_work_q_name, KOBJ_NAME_LEN, "fc_dl_%d", - shost->host_no); + snprintf(fc_host->devloss_work_q_name, + sizeof(fc_host->devloss_work_q_name), + "fc_dl_%d", shost->host_no); fc_host->devloss_work_q = create_singlethread_workqueue( fc_host->devloss_work_q_name); if (!fc_host->devloss_work_q) { diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 06748f318cd5..043c3921164f 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -247,8 +247,8 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev, atomic_set(&ihost->nr_scans, 0); mutex_init(&ihost->mutex); - snprintf(ihost->scan_workq_name, KOBJ_NAME_LEN, "iscsi_scan_%d", - shost->host_no); + snprintf(ihost->scan_workq_name, sizeof(ihost->scan_workq_name), + "iscsi_scan_%d", shost->host_no); ihost->scan_workq = create_singlethread_workqueue( ihost->scan_workq_name); if (!ihost->scan_workq) diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 6149e4b58c88..efef715135d3 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -401,7 +401,7 @@ void register_disk(struct gendisk *disk) disk->dev.parent = disk->driverfs_dev; disk->dev.devt = MKDEV(disk->major, disk->first_minor); - strlcpy(disk->dev.bus_id, disk->disk_name, KOBJ_NAME_LEN); + strlcpy(disk->dev.bus_id, disk->disk_name, BUS_ID_SIZE); /* ewww... some of these buggers have / in the name... */ s = strchr(disk->dev.bus_id, '/'); if (s) diff --git a/include/linux/device.h b/include/linux/device.h index 0e1d24c2ed41..fba1bb0d1758 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -29,8 +29,7 @@ /* DEVICE_NAME_HALF is really less than half to accommodate slop */ #define DEVICE_NAME_HALF __stringify(20) #define DEVICE_ID_SIZE 32 -#define BUS_ID_SIZE KOBJ_NAME_LEN - +#define BUS_ID_SIZE 20 struct device; struct device_driver; diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 39e709f88aa0..d542faa6cb47 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -26,7 +26,6 @@ #include #include -#define KOBJ_NAME_LEN 20 #define UEVENT_HELPER_PATH_LEN 256 #define UEVENT_NUM_ENVP 32 /* number of env pointers */ #define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */ diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 387e428f1cdf..b9a76c972084 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -733,7 +733,7 @@ struct spi_board_info { * controller_data goes to spi_device.controller_data, * irq is copied too */ - char modalias[KOBJ_NAME_LEN]; + char modalias[32]; const void *platform_data; void *controller_data; int irq; diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 1834fdfe82a7..a594bac4a77d 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -623,7 +623,7 @@ struct Scsi_Host { /* * Optional work queue to be utilized by the transport */ - char work_q_name[KOBJ_NAME_LEN]; + char work_q_name[20]; struct workqueue_struct *work_q; /* diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 06f72bab9df0..878373c32ef7 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -489,9 +489,9 @@ struct fc_host_attrs { u16 npiv_vports_inuse; /* work queues for rport state manipulation */ - char work_q_name[KOBJ_NAME_LEN]; + char work_q_name[20]; struct workqueue_struct *work_q; - char devloss_work_q_name[KOBJ_NAME_LEN]; + char devloss_work_q_name[20]; struct workqueue_struct *devloss_work_q; }; diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index f5444e033cc9..8b6c91df4c7a 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -198,7 +198,7 @@ struct iscsi_cls_host { atomic_t nr_scans; struct mutex mutex; struct workqueue_struct *scan_workq; - char scan_workq_name[KOBJ_NAME_LEN]; + char scan_workq_name[20]; }; extern void iscsi_host_for_each_session(struct Scsi_Host *shost, -- cgit v1.2.3 From ca52a49846f1451163c0dc14c40cd06ff808df3e Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 2 May 2008 06:02:41 +0200 Subject: driver core: remove DEVICE_NAME_SIZE define There is no such thing as a "device name size" in the driver core, so remove the define and fix up any users of this odd define in the rest of the kernel. Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/eisa/Makefile | 2 +- drivers/eisa/eisa-bus.c | 4 ++-- drivers/mca/mca-bus.c | 2 +- drivers/video/aty/aty128fb.c | 2 +- drivers/video/aty/radeonfb.h | 2 +- include/linux/device.h | 3 --- include/linux/eisa.h | 2 +- 7 files changed, 7 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/drivers/eisa/Makefile b/drivers/eisa/Makefile index 70abf93fe6b0..5369ce957c6d 100644 --- a/drivers/eisa/Makefile +++ b/drivers/eisa/Makefile @@ -9,7 +9,7 @@ obj-${CONFIG_EISA_VIRTUAL_ROOT} += virtual_root.o # Ugly hack to get DEVICE_NAME_SIZE value... -DEVICE_NAME_SIZE =$(shell awk '$$1=="\#define" && $$2=="DEVICE_NAME_SIZE" {print $$3-1}' $(srctree)/include/linux/device.h) +DEVICE_NAME_SIZE = 50 $(obj)/eisa-bus.o: $(obj)/devlist.h diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c index 65dcf0432653..c950bf8606d9 100644 --- a/drivers/eisa/eisa-bus.c +++ b/drivers/eisa/eisa-bus.c @@ -22,7 +22,7 @@ struct eisa_device_info { struct eisa_device_id id; - char name[DEVICE_NAME_SIZE]; + char name[50]; }; #ifdef CONFIG_EISA_NAMES @@ -63,7 +63,7 @@ static void __init eisa_name_device (struct eisa_device *edev) if (!strcmp (edev->id.sig, eisa_table[i].id.sig)) { strlcpy (edev->pretty_name, eisa_table[i].name, - DEVICE_NAME_SIZE); + sizeof(edev->pretty_name)); return; } } diff --git a/drivers/mca/mca-bus.c b/drivers/mca/mca-bus.c index 67b8e9453b19..ef2dbfe74714 100644 --- a/drivers/mca/mca-bus.c +++ b/drivers/mca/mca-bus.c @@ -40,7 +40,7 @@ static struct mca_bus *mca_root_busses[MAX_MCA_BUSSES]; struct mca_device_info { short pos_id; /* the 2 byte pos id for this card */ - char name[DEVICE_NAME_SIZE]; + char name[50]; }; static int mca_bus_match (struct device *dev, struct device_driver *drv) diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 24ee96c4e9e9..07b6addbb3c1 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1872,7 +1872,7 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i struct fb_info *info = pci_get_drvdata(pdev); struct aty128fb_par *par = info->par; struct fb_var_screeninfo var; - char video_card[DEVICE_NAME_SIZE]; + char video_card[50]; u8 chip_rev; u32 dac; diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h index c347e38cd0b0..ccbfffd12805 100644 --- a/drivers/video/aty/radeonfb.h +++ b/drivers/video/aty/radeonfb.h @@ -289,7 +289,7 @@ struct radeonfb_info { struct radeon_regs state; struct radeon_regs init_state; - char name[DEVICE_NAME_SIZE]; + char name[50]; unsigned long mmio_base_phys; unsigned long fb_base_phys; diff --git a/include/linux/device.h b/include/linux/device.h index fba1bb0d1758..894fdb2e483a 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -25,9 +25,6 @@ #include #include -#define DEVICE_NAME_SIZE 50 -/* DEVICE_NAME_HALF is really less than half to accommodate slop */ -#define DEVICE_NAME_HALF __stringify(20) #define DEVICE_ID_SIZE 32 #define BUS_ID_SIZE 20 diff --git a/include/linux/eisa.h b/include/linux/eisa.h index fe806b6f030d..e61c0be2a459 100644 --- a/include/linux/eisa.h +++ b/include/linux/eisa.h @@ -40,7 +40,7 @@ struct eisa_device { u64 dma_mask; struct device dev; /* generic device */ #ifdef CONFIG_EISA_NAMES - char pretty_name[DEVICE_NAME_SIZE]; + char pretty_name[50]; #endif }; -- cgit v1.2.3 From b98cb4b7fe0e83238501b48489e46b3e0dce9aaf Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 2 May 2008 06:02:41 +0200 Subject: driver core: remove DEVICE_ID_SIZE define There is no such thing as a "device id size" in the driver core, so remove the define and fix up any users of this odd define in the rest of the kernel. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/memstick/host/jmb38x_ms.c | 4 ++-- include/linux/device.h | 1 - 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c index a054668eda16..4e3bfbcdf155 100644 --- a/drivers/memstick/host/jmb38x_ms.c +++ b/drivers/memstick/host/jmb38x_ms.c @@ -51,7 +51,7 @@ struct jmb38x_ms_host { void __iomem *addr; spinlock_t lock; int id; - char host_id[DEVICE_ID_SIZE]; + char host_id[32]; int irq; unsigned int block_pos; unsigned long timeout_jiffies; @@ -781,7 +781,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt) spin_lock_init(&host->lock); host->id = cnt; - snprintf(host->host_id, DEVICE_ID_SIZE, DRIVER_NAME ":slot%d", + snprintf(host->host_id, sizeof(host->host_id), DRIVER_NAME ":slot%d", host->id); host->irq = jm->pdev->irq; host->timeout_jiffies = msecs_to_jiffies(1000); diff --git a/include/linux/device.h b/include/linux/device.h index 894fdb2e483a..d24a47f80f9c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -25,7 +25,6 @@ #include #include -#define DEVICE_ID_SIZE 32 #define BUS_ID_SIZE 20 struct device; -- cgit v1.2.3 From 328a14e70e7f46997cb50d4258dd93d5377f98c6 Mon Sep 17 00:00:00 2001 From: "Hans J. Koch" Date: Fri, 23 May 2008 13:50:14 +0200 Subject: UIO: Add write function to allow irq masking MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sometimes it is necessary to enable/disable the interrupt of a UIO device from the userspace part of the driver. With this patch, the UIO kernel driver can implement an "irqcontrol()" function that does this. Userspace can write an s32 value to /dev/uioX (usually 0 or 1 to turn the irq off or on). The UIO core will then call the driver's irqcontrol function. Signed-off-by: Hans J. Koch Acked-by: Uwe Kleine-König Acked-by: Magnus Damm Signed-off-by: Greg Kroah-Hartman --- Documentation/DocBook/uio-howto.tmpl | 40 +++++++++++++++++++++++++++++++++++- drivers/uio/uio.c | 26 +++++++++++++++++++++++ include/linux/uio_driver.h | 2 ++ 3 files changed, 67 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl index fdd7f4f887b7..c4d187313963 100644 --- a/Documentation/DocBook/uio-howto.tmpl +++ b/Documentation/DocBook/uio-howto.tmpl @@ -29,6 +29,12 @@ + + 0.5 + 2008-05-22 + hjk + Added description of write() function. + 0.4 2007-11-26 @@ -64,7 +70,7 @@ Copyright and License - Copyright (c) 2006 by Hans-Jürgen Koch. + Copyright (c) 2006-2008 by Hans-Jürgen Koch. This documentation is Free Software licensed under the terms of the GPL version 2. @@ -189,6 +195,30 @@ interested in translating it, please email me represents the total interrupt count. You can use this number to figure out if you missed some interrupts. + + For some hardware that has more than one interrupt source internally, + but not separate IRQ mask and status registers, there might be + situations where userspace cannot determine what the interrupt source + was if the kernel handler disables them by writing to the chip's IRQ + register. In such a case, the kernel has to disable the IRQ completely + to leave the chip's register untouched. Now the userspace part can + determine the cause of the interrupt, but it cannot re-enable + interrupts. Another cornercase is chips where re-enabling interrupts + is a read-modify-write operation to a combined IRQ status/acknowledge + register. This would be racy if a new interrupt occurred + simultaneously. + + + To address these problems, UIO also implements a write() function. It + is normally not used and can be ignored for hardware that has only a + single interrupt source or has separate IRQ mask and status registers. + If you need it, however, a write to /dev/uioX + will call the irqcontrol() function implemented + by the driver. You have to write a 32-bit value that is usually either + 0 or 1 to disable or enable interrupts. If a driver does not implement + irqcontrol(), write() will + return with -ENOSYS. + To handle interrupts properly, your custom kernel module can @@ -362,6 +392,14 @@ device is actually used. open(), you will probably also want a custom release() function. + + +int (*irqcontrol)(struct uio_info *info, s32 irq_on) +: Optional. If you need to be able to enable or disable +interrupts from userspace by writing to /dev/uioX, +you can implement this function. The parameter irq_on +will be 0 to disable interrupts and 1 to enable them. + diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index 5a7ca2e6094d..3a6934bf7131 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -427,6 +427,31 @@ static ssize_t uio_read(struct file *filep, char __user *buf, return retval; } +static ssize_t uio_write(struct file *filep, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + ssize_t retval; + s32 irq_on; + + if (idev->info->irq == UIO_IRQ_NONE) + return -EIO; + + if (count != sizeof(s32)) + return -EINVAL; + + if (!idev->info->irqcontrol) + return -ENOSYS; + + if (copy_from_user(&irq_on, buf, count)) + return -EFAULT; + + retval = idev->info->irqcontrol(idev->info, irq_on); + + return retval ? retval : sizeof(s32); +} + static int uio_find_mem_index(struct vm_area_struct *vma) { int mi; @@ -546,6 +571,7 @@ static const struct file_operations uio_fops = { .open = uio_open, .release = uio_release, .read = uio_read, + .write = uio_write, .mmap = uio_mmap, .poll = uio_poll, .fasync = uio_fasync, diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h index 973386d439da..cf65e964102b 100644 --- a/include/linux/uio_driver.h +++ b/include/linux/uio_driver.h @@ -53,6 +53,7 @@ struct uio_device; * @mmap: mmap operation for this uio device * @open: open operation for this uio device * @release: release operation for this uio device + * @irqcontrol: disable/enable irqs when 0/1 is written to /dev/uioX */ struct uio_info { struct uio_device *uio_dev; @@ -66,6 +67,7 @@ struct uio_info { int (*mmap)(struct uio_info *info, struct vm_area_struct *vma); int (*open)(struct uio_info *info, struct inode *inode); int (*release)(struct uio_info *info, struct inode *inode); + int (*irqcontrol)(struct uio_info *info, s32 irq_on); }; extern int __must_check -- cgit v1.2.3 From 6d8333c24d41637f0f847f6e17032189dae08c02 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Tue, 10 Jun 2008 09:14:48 +0200 Subject: UIO: minor style and comment fixes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Uwe Kleine-König Signed-off-by: Hans J. Koch --- include/linux/uio_driver.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h index cf65e964102b..cdf338d94b7f 100644 --- a/include/linux/uio_driver.h +++ b/include/linux/uio_driver.h @@ -36,7 +36,7 @@ struct uio_mem { struct uio_map *map; }; -#define MAX_UIO_MAPS 5 +#define MAX_UIO_MAPS 5 struct uio_device; @@ -82,11 +82,11 @@ static inline int __must_check extern void uio_unregister_device(struct uio_info *info); extern void uio_event_notify(struct uio_info *info); -/* defines for uio_device->irq */ +/* defines for uio_info->irq */ #define UIO_IRQ_CUSTOM -1 #define UIO_IRQ_NONE -2 -/* defines for uio_device->memtype */ +/* defines for uio_mem->memtype */ #define UIO_MEM_NONE 0 #define UIO_MEM_PHYS 1 #define UIO_MEM_LOGICAL 2 -- cgit v1.2.3 From a231934bdf086a4fefc0df06e669499125a9db6f Mon Sep 17 00:00:00 2001 From: Richard Kennedy Date: Mon, 2 Jun 2008 11:07:25 +0100 Subject: kobject: reorder kobject to save space on 64 bit builds reorder kobject to save space on 64 bit builds. shrinks from 72 to 64 bytes & moves allocated kobject to a smaller slab. Signed-off-by: Richard Kennedy Signed-off-by: Greg Kroah-Hartman --- include/linux/kobject.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/kobject.h b/include/linux/kobject.h index d542faa6cb47..60f0d418ae32 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -58,12 +58,12 @@ enum kobject_action { struct kobject { const char *name; - struct kref kref; struct list_head entry; struct kobject *parent; struct kset *kset; struct kobj_type *ktype; struct sysfs_dirent *sd; + struct kref kref; unsigned int state_initialized:1; unsigned int state_in_sysfs:1; unsigned int state_add_uevent_sent:1; -- cgit v1.2.3 From 9505e6375640fc61d92d36c8e9f25a6a218f3f57 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Tue, 1 Jul 2008 15:14:51 +0200 Subject: debugfs: Implement debugfs_remove_recursive() debugfs_remove_recursive() will remove a dentry and all its children. Drivers can use this to zap their whole debugfs tree so that they don't need to keep track of every single debugfs dentry they created. It may fail to remove the whole tree in certain cases: sh-3.2# rmmod atmel-mci < /sys/kernel/debug/mmc0/ios/clock mmc0: card b368 removed atmel_mci atmel_mci.0: Lost dma0chan1, falling back to PIO sh-3.2# ls /sys/kernel/debug/mmc0/ ios But I'm not sure if that case can be handled in any sane manner. Signed-off-by: Haavard Skinnemoen Cc: Pierre Ossman Signed-off-by: Greg Kroah-Hartman --- fs/debugfs/inode.c | 114 ++++++++++++++++++++++++++++++++++++++++-------- include/linux/debugfs.h | 4 ++ 2 files changed, 100 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index e9602d85c11d..08e28c9bb416 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -309,6 +309,31 @@ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent, } EXPORT_SYMBOL_GPL(debugfs_create_symlink); +static void __debugfs_remove(struct dentry *dentry, struct dentry *parent) +{ + int ret = 0; + + if (debugfs_positive(dentry)) { + if (dentry->d_inode) { + dget(dentry); + switch (dentry->d_inode->i_mode & S_IFMT) { + case S_IFDIR: + ret = simple_rmdir(parent->d_inode, dentry); + break; + case S_IFLNK: + kfree(dentry->d_inode->i_private); + /* fall through */ + default: + simple_unlink(parent->d_inode, dentry); + break; + } + if (!ret) + d_delete(dentry); + dput(dentry); + } + } +} + /** * debugfs_remove - removes a file or directory from the debugfs filesystem * @dentry: a pointer to a the dentry of the file or directory to be @@ -325,7 +350,6 @@ EXPORT_SYMBOL_GPL(debugfs_create_symlink); void debugfs_remove(struct dentry *dentry) { struct dentry *parent; - int ret = 0; if (!dentry) return; @@ -335,29 +359,83 @@ void debugfs_remove(struct dentry *dentry) return; mutex_lock(&parent->d_inode->i_mutex); - if (debugfs_positive(dentry)) { - if (dentry->d_inode) { - dget(dentry); - switch (dentry->d_inode->i_mode & S_IFMT) { - case S_IFDIR: - ret = simple_rmdir(parent->d_inode, dentry); - break; - case S_IFLNK: - kfree(dentry->d_inode->i_private); - /* fall through */ - default: - simple_unlink(parent->d_inode, dentry); + __debugfs_remove(dentry, parent); + mutex_unlock(&parent->d_inode->i_mutex); + simple_release_fs(&debugfs_mount, &debugfs_mount_count); +} +EXPORT_SYMBOL_GPL(debugfs_remove); + +/** + * debugfs_remove_recursive - recursively removes a directory + * @dentry: a pointer to a the dentry of the directory to be removed. + * + * This function recursively removes a directory tree in debugfs that + * was previously created with a call to another debugfs function + * (like debugfs_create_file() or variants thereof.) + * + * This function is required to be called in order for the file to be + * removed, no automatic cleanup of files will happen when a module is + * removed, you are responsible here. + */ +void debugfs_remove_recursive(struct dentry *dentry) +{ + struct dentry *child; + struct dentry *parent; + + if (!dentry) + return; + + parent = dentry->d_parent; + if (!parent || !parent->d_inode) + return; + + parent = dentry; + mutex_lock(&parent->d_inode->i_mutex); + + while (1) { + /* + * When all dentries under "parent" has been removed, + * walk up the tree until we reach our starting point. + */ + if (list_empty(&parent->d_subdirs)) { + mutex_unlock(&parent->d_inode->i_mutex); + if (parent == dentry) break; - } - if (!ret) - d_delete(dentry); - dput(dentry); + parent = parent->d_parent; + mutex_lock(&parent->d_inode->i_mutex); + } + child = list_entry(parent->d_subdirs.next, struct dentry, + d_u.d_child); + + /* + * If "child" isn't empty, walk down the tree and + * remove all its descendants first. + */ + if (!list_empty(&child->d_subdirs)) { + mutex_unlock(&parent->d_inode->i_mutex); + parent = child; + mutex_lock(&parent->d_inode->i_mutex); + continue; } + __debugfs_remove(child, parent); + if (parent->d_subdirs.next == &child->d_u.d_child) { + /* + * Avoid infinite loop if we fail to remove + * one dentry. + */ + mutex_unlock(&parent->d_inode->i_mutex); + break; + } + simple_release_fs(&debugfs_mount, &debugfs_mount_count); } + + parent = dentry->d_parent; + mutex_lock(&parent->d_inode->i_mutex); + __debugfs_remove(dentry, parent); mutex_unlock(&parent->d_inode->i_mutex); simple_release_fs(&debugfs_mount, &debugfs_mount_count); } -EXPORT_SYMBOL_GPL(debugfs_remove); +EXPORT_SYMBOL_GPL(debugfs_remove_recursive); /** * debugfs_rename - rename a file/directory in the debugfs filesystem diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 32755cdf68db..e1a6c046cea3 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -44,6 +44,7 @@ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent, const char *dest); void debugfs_remove(struct dentry *dentry); +void debugfs_remove_recursive(struct dentry *dentry); struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry, struct dentry *new_dir, const char *new_name); @@ -101,6 +102,9 @@ static inline struct dentry *debugfs_create_symlink(const char *name, static inline void debugfs_remove(struct dentry *dentry) { } +static inline void debugfs_remove_recursive(struct dentry *dentry) +{ } + static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry, struct dentry *new_dir, char *new_name) { -- cgit v1.2.3 From 36ce6dad6e3cb3f050ed41e0beac0070d2062b25 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Tue, 10 Jun 2008 11:09:08 +0200 Subject: driver core: Suppress sysfs warnings for device_rename(). driver core: Suppress sysfs warnings for device_rename(). Renaming network devices to an already existing name is not something we want sysfs to print a scary warning for, since the callers can deal with this correctly. So let's introduce sysfs_create_link_nowarn() which gets rid of the common warning. Signed-off-by: Cornelia Huck Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 9 +++++---- fs/sysfs/dir.c | 37 +++++++++++++++++++++++++++++++++++-- fs/sysfs/symlink.c | 41 +++++++++++++++++++++++++++++++++-------- fs/sysfs/sysfs.h | 1 + include/linux/sysfs.h | 10 ++++++++++ 5 files changed, 84 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index c05b1159023e..7d5c63c81a59 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1345,8 +1345,9 @@ int device_rename(struct device *dev, char *new_name) if (old_class_name) { new_class_name = make_class_name(dev->class->name, &dev->kobj); if (new_class_name) { - error = sysfs_create_link(&dev->parent->kobj, - &dev->kobj, new_class_name); + error = sysfs_create_link_nowarn(&dev->parent->kobj, + &dev->kobj, + new_class_name); if (error) goto out; sysfs_remove_link(&dev->parent->kobj, old_class_name); @@ -1354,8 +1355,8 @@ int device_rename(struct device *dev, char *new_name) } #else if (dev->class) { - error = sysfs_create_link(&dev->class->p->class_subsys.kobj, - &dev->kobj, dev->bus_id); + error = sysfs_create_link_nowarn(&dev->class->p->class_subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out; sysfs_remove_link(&dev->class->p->class_subsys.kobj, diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 8c0e4b92574f..c1a7efb310bf 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -398,7 +398,7 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt, } /** - * sysfs_add_one - add sysfs_dirent to parent + * __sysfs_add_one - add sysfs_dirent to parent without warning * @acxt: addrm context to use * @sd: sysfs_dirent to be added * @@ -417,7 +417,7 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt, * 0 on success, -EEXIST if entry with the given name already * exists. */ -int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) +int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) { if (sysfs_find_dirent(acxt->parent_sd, sd->s_name)) return -EEXIST; @@ -434,6 +434,39 @@ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) return 0; } +/** + * sysfs_add_one - add sysfs_dirent to parent + * @acxt: addrm context to use + * @sd: sysfs_dirent to be added + * + * Get @acxt->parent_sd and set sd->s_parent to it and increment + * nlink of parent inode if @sd is a directory and link into the + * children list of the parent. + * + * This function should be called between calls to + * sysfs_addrm_start() and sysfs_addrm_finish() and should be + * passed the same @acxt as passed to sysfs_addrm_start(). + * + * LOCKING: + * Determined by sysfs_addrm_start(). + * + * RETURNS: + * 0 on success, -EEXIST if entry with the given name already + * exists. + */ +int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) +{ + int ret; + + ret = __sysfs_add_one(acxt, sd); + if (ret == -EEXIST) { + printk(KERN_WARNING "sysfs: duplicate filename '%s' " + "can not be created\n", sd->s_name); + WARN_ON(1); + } + return ret; +} + /** * sysfs_remove_one - remove sysfs_dirent from parent * @acxt: addrm context to use diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c index 817f5966edca..a3ba217fbe74 100644 --- a/fs/sysfs/symlink.c +++ b/fs/sysfs/symlink.c @@ -19,13 +19,8 @@ #include "sysfs.h" -/** - * sysfs_create_link - create symlink between two objects. - * @kobj: object whose directory we're creating the link in. - * @target: object we're pointing to. - * @name: name of the symlink. - */ -int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name) +static int sysfs_do_create_link(struct kobject *kobj, struct kobject *target, + const char *name, int warn) { struct sysfs_dirent *parent_sd = NULL; struct sysfs_dirent *target_sd = NULL; @@ -65,7 +60,10 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char target_sd = NULL; /* reference is now owned by the symlink */ sysfs_addrm_start(&acxt, parent_sd); - error = sysfs_add_one(&acxt, sd); + if (warn) + error = sysfs_add_one(&acxt, sd); + else + error = __sysfs_add_one(&acxt, sd); sysfs_addrm_finish(&acxt); if (error) @@ -79,6 +77,33 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char return error; } +/** + * sysfs_create_link - create symlink between two objects. + * @kobj: object whose directory we're creating the link in. + * @target: object we're pointing to. + * @name: name of the symlink. + */ +int sysfs_create_link(struct kobject *kobj, struct kobject *target, + const char *name) +{ + return sysfs_do_create_link(kobj, target, name, 1); +} + +/** + * sysfs_create_link_nowarn - create symlink between two objects. + * @kobj: object whose directory we're creating the link in. + * @target: object we're pointing to. + * @name: name of the symlink. + * + * This function does the same as sysf_create_link(), but it + * doesn't warn if the link already exists. + */ +int sysfs_create_link_nowarn(struct kobject *kobj, struct kobject *target, + const char *name) +{ + return sysfs_do_create_link(kobj, target, name, 0); +} + /** * sysfs_remove_link - remove symlink in object's directory. * @kobj: object we're acting for. diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index ce4e15f8aaeb..a5db496f71c7 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -107,6 +107,7 @@ struct sysfs_dirent *sysfs_get_active_two(struct sysfs_dirent *sd); void sysfs_put_active_two(struct sysfs_dirent *sd); void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *parent_sd); +int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd); int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd); void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd); void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt); diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 7858eac40aa7..37fa24152bd8 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -101,6 +101,9 @@ void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr); int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target, const char *name); +int __must_check sysfs_create_link_nowarn(struct kobject *kobj, + struct kobject *target, + const char *name); void sysfs_remove_link(struct kobject *kobj, const char *name); int __must_check sysfs_create_group(struct kobject *kobj, @@ -180,6 +183,13 @@ static inline int sysfs_create_link(struct kobject *kobj, return 0; } +static inline int sysfs_create_link_nowarn(struct kobject *kobj, + struct kobject *target, + const char *name) +{ + return 0; +} + static inline void sysfs_remove_link(struct kobject *kobj, const char *name) { } -- cgit v1.2.3 From 4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 1 Jul 2008 18:48:41 +0200 Subject: sysdev: Pass the attribute to the low level sysdev show/store function This allow to dynamically generate attributes and share show/store functions between attributes. Right now most attributes are generated by special macros and lots of duplicated code. With the attribute passed it's instead possible to attach some data to the attribute and then use that in shared low level functions to do different things. I need this for the dynamically generated bank attributes in the x86 machine check code, but it'll allow some further cleanups. I converted all users in tree to the new show/store prototype. It's a single huge patch to avoid unbisectable sections. Runtime tested: x86-32, x86-64 Compiled only: ia64, powerpc Not compile tested/only grep converted: sh, arm, avr32 Signed-off-by: Andi Kleen Signed-off-by: Greg Kroah-Hartman --- arch/arm/kernel/time.c | 4 ++- arch/avr32/kernel/cpu.c | 38 +++++++++++++++++--------- arch/ia64/kernel/err_inject.c | 22 ++++++++++----- arch/powerpc/kernel/sysfs.c | 15 ++++++++--- arch/powerpc/platforms/cell/cbe_thermal.c | 45 ++++++++++++++++++++----------- arch/powerpc/platforms/cell/spu_base.c | 3 ++- arch/s390/kernel/smp.c | 36 ++++++++++++++++--------- arch/s390/kernel/time.c | 35 ++++++++++++++++-------- arch/sh/drivers/dma/dma-sysfs.c | 15 ++++++++--- arch/sparc64/kernel/sysfs.c | 16 +++++++---- arch/x86/kernel/cpu/mcheck/mce_64.c | 14 +++++++--- arch/x86/kernel/cpu/mcheck/therm_throt.c | 1 + arch/x86/kernel/microcode.c | 10 ++++--- drivers/base/cpu.c | 10 ++++--- drivers/base/memory.c | 12 ++++++--- drivers/base/node.c | 15 +++++++---- drivers/base/sys.c | 4 +-- drivers/base/topology.c | 17 ++++++++---- drivers/cpuidle/sysfs.c | 10 ++++--- drivers/xen/balloon.c | 1 + include/linux/sysdev.h | 5 ++-- kernel/rtmutex-tester.c | 7 ++--- kernel/sched.c | 8 ++++-- kernel/time/clocksource.c | 8 ++++-- 24 files changed, 239 insertions(+), 112 deletions(-) (limited to 'include') diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index cc5145b28e7f..368d171754cf 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -130,7 +130,9 @@ static const struct leds_evt_name evt_names[] = { { "red", led_red_on, led_red_off }, }; -static ssize_t leds_store(struct sys_device *dev, const char *buf, size_t size) +static ssize_t leds_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t size) { int ret = -EINVAL, len = strcspn(buf, " "); diff --git a/arch/avr32/kernel/cpu.c b/arch/avr32/kernel/cpu.c index b8409caeb23d..e84faffbbeca 100644 --- a/arch/avr32/kernel/cpu.c +++ b/arch/avr32/kernel/cpu.c @@ -26,14 +26,16 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices); * XXX: If/when a SMP-capable implementation of AVR32 will ever be * made, we must make sure that the code executes on the correct CPU. */ -static ssize_t show_pc0event(struct sys_device *dev, char *buf) +static ssize_t show_pc0event(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned long pccr; pccr = sysreg_read(PCCR); return sprintf(buf, "0x%lx\n", (pccr >> 12) & 0x3f); } -static ssize_t store_pc0event(struct sys_device *dev, const char *buf, +static ssize_t store_pc0event(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { unsigned long val; @@ -46,15 +48,17 @@ static ssize_t store_pc0event(struct sys_device *dev, const char *buf, sysreg_write(PCCR, val); return count; } -static ssize_t show_pc0count(struct sys_device *dev, char *buf) +static ssize_t show_pc0count(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned long pcnt0; pcnt0 = sysreg_read(PCNT0); return sprintf(buf, "%lu\n", pcnt0); } -static ssize_t store_pc0count(struct sys_device *dev, const char *buf, - size_t count) +static ssize_t store_pc0count(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { unsigned long val; char *endp; @@ -67,14 +71,16 @@ static ssize_t store_pc0count(struct sys_device *dev, const char *buf, return count; } -static ssize_t show_pc1event(struct sys_device *dev, char *buf) +static ssize_t show_pc1event(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned long pccr; pccr = sysreg_read(PCCR); return sprintf(buf, "0x%lx\n", (pccr >> 18) & 0x3f); } -static ssize_t store_pc1event(struct sys_device *dev, const char *buf, +static ssize_t store_pc1event(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { unsigned long val; @@ -87,14 +93,16 @@ static ssize_t store_pc1event(struct sys_device *dev, const char *buf, sysreg_write(PCCR, val); return count; } -static ssize_t show_pc1count(struct sys_device *dev, char *buf) +static ssize_t show_pc1count(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned long pcnt1; pcnt1 = sysreg_read(PCNT1); return sprintf(buf, "%lu\n", pcnt1); } -static ssize_t store_pc1count(struct sys_device *dev, const char *buf, +static ssize_t store_pc1count(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { unsigned long val; @@ -108,14 +116,16 @@ static ssize_t store_pc1count(struct sys_device *dev, const char *buf, return count; } -static ssize_t show_pccycles(struct sys_device *dev, char *buf) +static ssize_t show_pccycles(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned long pccnt; pccnt = sysreg_read(PCCNT); return sprintf(buf, "%lu\n", pccnt); } -static ssize_t store_pccycles(struct sys_device *dev, const char *buf, +static ssize_t store_pccycles(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { unsigned long val; @@ -129,14 +139,16 @@ static ssize_t store_pccycles(struct sys_device *dev, const char *buf, return count; } -static ssize_t show_pcenable(struct sys_device *dev, char *buf) +static ssize_t show_pcenable(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned long pccr; pccr = sysreg_read(PCCR); return sprintf(buf, "%c\n", (pccr & 1)?'1':'0'); } -static ssize_t store_pcenable(struct sys_device *dev, const char *buf, +static ssize_t store_pcenable(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { unsigned long pccr, val; diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c index b642648cc2ac..c539c689493b 100644 --- a/arch/ia64/kernel/err_inject.c +++ b/arch/ia64/kernel/err_inject.c @@ -55,7 +55,8 @@ static u64 resources[NR_CPUS]; #define show(name) \ static ssize_t \ -show_##name(struct sys_device *dev, char *buf) \ +show_##name(struct sys_device *dev, struct sysdev_attribute *attr, \ + char *buf) \ { \ u32 cpu=dev->id; \ return sprintf(buf, "%lx\n", name[cpu]); \ @@ -63,7 +64,8 @@ show_##name(struct sys_device *dev, char *buf) \ #define store(name) \ static ssize_t \ -store_##name(struct sys_device *dev, const char *buf, size_t size) \ +store_##name(struct sys_device *dev, struct sysdev_attribute *attr, \ + const char *buf, size_t size) \ { \ unsigned int cpu=dev->id; \ name[cpu] = simple_strtoull(buf, NULL, 16); \ @@ -76,7 +78,8 @@ show(call_start) * processor. The cpu number in driver is only used for storing data. */ static ssize_t -store_call_start(struct sys_device *dev, const char *buf, size_t size) +store_call_start(struct sys_device *dev, struct sysdev_attribute *attr, + const char *buf, size_t size) { unsigned int cpu=dev->id; unsigned long call_start = simple_strtoull(buf, NULL, 16); @@ -124,14 +127,16 @@ show(err_type_info) store(err_type_info) static ssize_t -show_virtual_to_phys(struct sys_device *dev, char *buf) +show_virtual_to_phys(struct sys_device *dev, struct sysdev_attribute *attr, + char *buf) { unsigned int cpu=dev->id; return sprintf(buf, "%lx\n", phys_addr[cpu]); } static ssize_t -store_virtual_to_phys(struct sys_device *dev, const char *buf, size_t size) +store_virtual_to_phys(struct sys_device *dev, struct sysdev_attribute *attr, + const char *buf, size_t size) { unsigned int cpu=dev->id; u64 virt_addr=simple_strtoull(buf, NULL, 16); @@ -154,7 +159,8 @@ show(err_struct_info) store(err_struct_info) static ssize_t -show_err_data_buffer(struct sys_device *dev, char *buf) +show_err_data_buffer(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned int cpu=dev->id; @@ -165,7 +171,9 @@ show_err_data_buffer(struct sys_device *dev, char *buf) } static ssize_t -store_err_data_buffer(struct sys_device *dev, const char *buf, size_t size) +store_err_data_buffer(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t size) { unsigned int cpu=dev->id; int ret; diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index c8127f832df0..aba0ba95f062 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -28,7 +28,9 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices); /* Time in microseconds we delay before sleeping in the idle loop */ DEFINE_PER_CPU(unsigned long, smt_snooze_delay) = { 100 }; -static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf, +static ssize_t store_smt_snooze_delay(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); @@ -44,7 +46,9 @@ static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf, return count; } -static ssize_t show_smt_snooze_delay(struct sys_device *dev, char *buf) +static ssize_t show_smt_snooze_delay(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); @@ -152,14 +156,17 @@ static unsigned long write_##NAME(unsigned long val) \ mtspr(ADDRESS, val); \ return 0; \ } \ -static ssize_t show_##NAME(struct sys_device *dev, char *buf) \ +static ssize_t show_##NAME(struct sys_device *dev, \ + struct sysdev_attribute *attr, \ + char *buf) \ { \ struct cpu *cpu = container_of(dev, struct cpu, sysdev); \ unsigned long val = run_on_cpu(cpu->sysdev.id, read_##NAME, 0); \ return sprintf(buf, "%lx\n", val); \ } \ static ssize_t __used \ - store_##NAME(struct sys_device *dev, const char *buf, size_t count) \ + store_##NAME(struct sys_device *dev, struct sysdev_attribute *attr, \ + const char *buf, size_t count) \ { \ struct cpu *cpu = container_of(dev, struct cpu, sysdev); \ unsigned long val; \ diff --git a/arch/powerpc/platforms/cell/cbe_thermal.c b/arch/powerpc/platforms/cell/cbe_thermal.c index 4852bf312d83..4d4c8c169124 100644 --- a/arch/powerpc/platforms/cell/cbe_thermal.c +++ b/arch/powerpc/platforms/cell/cbe_thermal.c @@ -97,7 +97,8 @@ static u8 spu_read_register_value(struct sys_device *sysdev, union spe_reg __iom return value.spe[spu->spe_id]; } -static ssize_t spu_show_temp(struct sys_device *sysdev, char *buf) +static ssize_t spu_show_temp(struct sys_device *sysdev, struct sysdev_attribute *attr, + char *buf) { u8 value; struct cbe_pmd_regs __iomem *pmd_regs; @@ -146,32 +147,38 @@ static ssize_t store_throttle(struct cbe_pmd_regs __iomem *pmd_regs, const char return size; } -static ssize_t spu_show_throttle_end(struct sys_device *sysdev, char *buf) +static ssize_t spu_show_throttle_end(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return show_throttle(get_pmd_regs(sysdev), buf, 0); } -static ssize_t spu_show_throttle_begin(struct sys_device *sysdev, char *buf) +static ssize_t spu_show_throttle_begin(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return show_throttle(get_pmd_regs(sysdev), buf, 8); } -static ssize_t spu_show_throttle_full_stop(struct sys_device *sysdev, char *buf) +static ssize_t spu_show_throttle_full_stop(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return show_throttle(get_pmd_regs(sysdev), buf, 16); } -static ssize_t spu_store_throttle_end(struct sys_device *sysdev, const char *buf, size_t size) +static ssize_t spu_store_throttle_end(struct sys_device *sysdev, + struct sysdev_attribute *attr, const char *buf, size_t size) { return store_throttle(get_pmd_regs(sysdev), buf, size, 0); } -static ssize_t spu_store_throttle_begin(struct sys_device *sysdev, const char *buf, size_t size) +static ssize_t spu_store_throttle_begin(struct sys_device *sysdev, + struct sysdev_attribute *attr, const char *buf, size_t size) { return store_throttle(get_pmd_regs(sysdev), buf, size, 8); } -static ssize_t spu_store_throttle_full_stop(struct sys_device *sysdev, const char *buf, size_t size) +static ssize_t spu_store_throttle_full_stop(struct sys_device *sysdev, + struct sysdev_attribute *attr, const char *buf, size_t size) { return store_throttle(get_pmd_regs(sysdev), buf, size, 16); } @@ -192,43 +199,51 @@ static ssize_t ppe_show_temp(struct sys_device *sysdev, char *buf, int pos) /* shows the temperature of the DTS on the PPE, * located near the linear thermal sensor */ -static ssize_t ppe_show_temp0(struct sys_device *sysdev, char *buf) +static ssize_t ppe_show_temp0(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return ppe_show_temp(sysdev, buf, 32); } /* shows the temperature of the second DTS on the PPE */ -static ssize_t ppe_show_temp1(struct sys_device *sysdev, char *buf) +static ssize_t ppe_show_temp1(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return ppe_show_temp(sysdev, buf, 0); } -static ssize_t ppe_show_throttle_end(struct sys_device *sysdev, char *buf) +static ssize_t ppe_show_throttle_end(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return show_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, 32); } -static ssize_t ppe_show_throttle_begin(struct sys_device *sysdev, char *buf) +static ssize_t ppe_show_throttle_begin(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return show_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, 40); } -static ssize_t ppe_show_throttle_full_stop(struct sys_device *sysdev, char *buf) +static ssize_t ppe_show_throttle_full_stop(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { return show_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, 48); } -static ssize_t ppe_store_throttle_end(struct sys_device *sysdev, const char *buf, size_t size) +static ssize_t ppe_store_throttle_end(struct sys_device *sysdev, + struct sysdev_attribute *attr, const char *buf, size_t size) { return store_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, size, 32); } -static ssize_t ppe_store_throttle_begin(struct sys_device *sysdev, const char *buf, size_t size) +static ssize_t ppe_store_throttle_begin(struct sys_device *sysdev, + struct sysdev_attribute *attr, const char *buf, size_t size) { return store_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, size, 40); } -static ssize_t ppe_store_throttle_full_stop(struct sys_device *sysdev, const char *buf, size_t size) +static ssize_t ppe_store_throttle_full_stop(struct sys_device *sysdev, + struct sysdev_attribute *attr, const char *buf, size_t size) { return store_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, size, 48); } diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 78f905bc6a42..a5bdb89a17c3 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -703,7 +703,8 @@ static unsigned long long spu_acct_time(struct spu *spu, } -static ssize_t spu_stat_show(struct sys_device *sysdev, char *buf) +static ssize_t spu_stat_show(struct sys_device *sysdev, + struct sysdev_attribute *attr, char *buf) { struct spu *spu = container_of(sysdev, struct spu, sysdev); diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index b6781030cfbd..b795b3e24afd 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -864,7 +864,8 @@ int setup_profiling_timer(unsigned int multiplier) } #ifdef CONFIG_HOTPLUG_CPU -static ssize_t cpu_configure_show(struct sys_device *dev, char *buf) +static ssize_t cpu_configure_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t count; @@ -874,8 +875,9 @@ static ssize_t cpu_configure_show(struct sys_device *dev, char *buf) return count; } -static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf, - size_t count) +static ssize_t cpu_configure_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { int cpu = dev->id; int val, rc; @@ -922,7 +924,8 @@ out: static SYSDEV_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store); #endif /* CONFIG_HOTPLUG_CPU */ -static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf) +static ssize_t cpu_polarization_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { int cpu = dev->id; ssize_t count; @@ -950,7 +953,8 @@ static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf) } static SYSDEV_ATTR(polarization, 0444, cpu_polarization_show, NULL); -static ssize_t show_cpu_address(struct sys_device *dev, char *buf) +static ssize_t show_cpu_address(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { return sprintf(buf, "%d\n", __cpu_logical_map[dev->id]); } @@ -970,7 +974,8 @@ static struct attribute_group cpu_common_attr_group = { .attrs = cpu_common_attrs, }; -static ssize_t show_capability(struct sys_device *dev, char *buf) +static ssize_t show_capability(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { unsigned int capability; int rc; @@ -982,7 +987,8 @@ static ssize_t show_capability(struct sys_device *dev, char *buf) } static SYSDEV_ATTR(capability, 0444, show_capability, NULL); -static ssize_t show_idle_count(struct sys_device *dev, char *buf) +static ssize_t show_idle_count(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct s390_idle_data *idle; unsigned long long idle_count; @@ -995,7 +1001,8 @@ static ssize_t show_idle_count(struct sys_device *dev, char *buf) } static SYSDEV_ATTR(idle_count, 0444, show_idle_count, NULL); -static ssize_t show_idle_time(struct sys_device *dev, char *buf) +static ssize_t show_idle_time(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct s390_idle_data *idle; unsigned long long new_time; @@ -1112,7 +1119,9 @@ out: return rc; } -static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf, +static ssize_t __ref rescan_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { int rc; @@ -1123,7 +1132,9 @@ static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf, static SYSDEV_ATTR(rescan, 0200, NULL, rescan_store); #endif /* CONFIG_HOTPLUG_CPU */ -static ssize_t dispatching_show(struct sys_device *dev, char *buf) +static ssize_t dispatching_show(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) { ssize_t count; @@ -1133,8 +1144,9 @@ static ssize_t dispatching_show(struct sys_device *dev, char *buf) return count; } -static ssize_t dispatching_store(struct sys_device *dev, const char *buf, - size_t count) +static ssize_t dispatching_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { int val, rc; char delim; diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index f2cede3947b2..ab70d9bd9261 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -1100,7 +1100,9 @@ static inline struct etr_aib *etr_aib_from_dev(struct sys_device *dev) return etr_port1_online ? &etr_port1 : NULL; } -static ssize_t etr_online_show(struct sys_device *dev, char *buf) +static ssize_t etr_online_show(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) { unsigned int online; @@ -1109,7 +1111,8 @@ static ssize_t etr_online_show(struct sys_device *dev, char *buf) } static ssize_t etr_online_store(struct sys_device *dev, - const char *buf, size_t count) + struct sysdev_attribute *attr, + const char *buf, size_t count) { unsigned int value; @@ -1136,7 +1139,9 @@ static ssize_t etr_online_store(struct sys_device *dev, static SYSDEV_ATTR(online, 0600, etr_online_show, etr_online_store); -static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf) +static ssize_t etr_stepping_control_show(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) { return sprintf(buf, "%i\n", (dev == &etr_port0_dev) ? etr_eacr.e0 : etr_eacr.e1); @@ -1144,7 +1149,8 @@ static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(stepping_control, 0400, etr_stepping_control_show, NULL); -static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf) +static ssize_t etr_mode_code_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { if (!etr_port0_online && !etr_port1_online) /* Status word is not uptodate if both ports are offline. */ @@ -1155,7 +1161,8 @@ static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(state_code, 0400, etr_mode_code_show, NULL); -static ssize_t etr_untuned_show(struct sys_device *dev, char *buf) +static ssize_t etr_untuned_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct etr_aib *aib = etr_aib_from_dev(dev); @@ -1166,7 +1173,8 @@ static ssize_t etr_untuned_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(untuned, 0400, etr_untuned_show, NULL); -static ssize_t etr_network_id_show(struct sys_device *dev, char *buf) +static ssize_t etr_network_id_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct etr_aib *aib = etr_aib_from_dev(dev); @@ -1177,7 +1185,8 @@ static ssize_t etr_network_id_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(network, 0400, etr_network_id_show, NULL); -static ssize_t etr_id_show(struct sys_device *dev, char *buf) +static ssize_t etr_id_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct etr_aib *aib = etr_aib_from_dev(dev); @@ -1188,7 +1197,8 @@ static ssize_t etr_id_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(id, 0400, etr_id_show, NULL); -static ssize_t etr_port_number_show(struct sys_device *dev, char *buf) +static ssize_t etr_port_number_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct etr_aib *aib = etr_aib_from_dev(dev); @@ -1199,7 +1209,8 @@ static ssize_t etr_port_number_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(port, 0400, etr_port_number_show, NULL); -static ssize_t etr_coupled_show(struct sys_device *dev, char *buf) +static ssize_t etr_coupled_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct etr_aib *aib = etr_aib_from_dev(dev); @@ -1210,7 +1221,8 @@ static ssize_t etr_coupled_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(coupled, 0400, etr_coupled_show, NULL); -static ssize_t etr_local_time_show(struct sys_device *dev, char *buf) +static ssize_t etr_local_time_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct etr_aib *aib = etr_aib_from_dev(dev); @@ -1221,7 +1233,8 @@ static ssize_t etr_local_time_show(struct sys_device *dev, char *buf) static SYSDEV_ATTR(local_time, 0400, etr_local_time_show, NULL); -static ssize_t etr_utc_offset_show(struct sys_device *dev, char *buf) +static ssize_t etr_utc_offset_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct etr_aib *aib = etr_aib_from_dev(dev); diff --git a/arch/sh/drivers/dma/dma-sysfs.c b/arch/sh/drivers/dma/dma-sysfs.c index 51b57c0d1a3c..347ee11351ec 100644 --- a/arch/sh/drivers/dma/dma-sysfs.c +++ b/arch/sh/drivers/dma/dma-sysfs.c @@ -23,7 +23,8 @@ static struct sysdev_class dma_sysclass = { }; EXPORT_SYMBOL(dma_sysclass); -static ssize_t dma_show_devices(struct sys_device *dev, char *buf) +static ssize_t dma_show_devices(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t len = 0; int i; @@ -57,13 +58,15 @@ static int __init dma_sysclass_init(void) } postcore_initcall(dma_sysclass_init); -static ssize_t dma_show_dev_id(struct sys_device *dev, char *buf) +static ssize_t dma_show_dev_id(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct dma_channel *channel = to_dma_channel(dev); return sprintf(buf, "%s\n", channel->dev_id); } static ssize_t dma_store_dev_id(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { struct dma_channel *channel = to_dma_channel(dev); @@ -74,6 +77,7 @@ static ssize_t dma_store_dev_id(struct sys_device *dev, static SYSDEV_ATTR(dev_id, S_IRUGO | S_IWUSR, dma_show_dev_id, dma_store_dev_id); static ssize_t dma_store_config(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { struct dma_channel *channel = to_dma_channel(dev); @@ -87,13 +91,15 @@ static ssize_t dma_store_config(struct sys_device *dev, static SYSDEV_ATTR(config, S_IWUSR, NULL, dma_store_config); -static ssize_t dma_show_mode(struct sys_device *dev, char *buf) +static ssize_t dma_show_mode(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct dma_channel *channel = to_dma_channel(dev); return sprintf(buf, "0x%08x\n", channel->mode); } static ssize_t dma_store_mode(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { struct dma_channel *channel = to_dma_channel(dev); @@ -104,7 +110,8 @@ static ssize_t dma_store_mode(struct sys_device *dev, static SYSDEV_ATTR(mode, S_IRUGO | S_IWUSR, dma_show_mode, dma_store_mode); #define dma_ro_attr(field, fmt) \ -static ssize_t dma_show_##field(struct sys_device *dev, char *buf) \ +static ssize_t dma_show_##field(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf)\ { \ struct dma_channel *channel = to_dma_channel(dev); \ return sprintf(buf, fmt, channel->field); \ diff --git a/arch/sparc64/kernel/sysfs.c b/arch/sparc64/kernel/sysfs.c index e885034a6b73..84e5ce146713 100644 --- a/arch/sparc64/kernel/sysfs.c +++ b/arch/sparc64/kernel/sysfs.c @@ -14,7 +14,8 @@ static DEFINE_PER_CPU(struct hv_mmu_statistics, mmu_stats) __attribute__((aligned(64))); #define SHOW_MMUSTAT_ULONG(NAME) \ -static ssize_t show_##NAME(struct sys_device *dev, char *buf) \ +static ssize_t show_##NAME(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ struct hv_mmu_statistics *p = &per_cpu(mmu_stats, dev->id); \ return sprintf(buf, "%lu\n", p->NAME); \ @@ -135,13 +136,16 @@ static unsigned long write_mmustat_enable(unsigned long val) return sun4v_mmustat_conf(ra, &orig_ra); } -static ssize_t show_mmustat_enable(struct sys_device *s, char *buf) +static ssize_t show_mmustat_enable(struct sys_device *s, + struct sysdev_attribute *attr, char *buf) { unsigned long val = run_on_cpu(s->id, read_mmustat_enable, 0); return sprintf(buf, "%lx\n", val); } -static ssize_t store_mmustat_enable(struct sys_device *s, const char *buf, size_t count) +static ssize_t store_mmustat_enable(struct sys_device *s, + struct sysdev_attribute *attr, const char *buf, + size_t count) { unsigned long val, err; int ret = sscanf(buf, "%ld", &val); @@ -179,14 +183,16 @@ static void unregister_mmu_stats(struct sys_device *s) #endif #define SHOW_CPUDATA_ULONG_NAME(NAME, MEMBER) \ -static ssize_t show_##NAME(struct sys_device *dev, char *buf) \ +static ssize_t show_##NAME(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ cpuinfo_sparc *c = &cpu_data(dev->id); \ return sprintf(buf, "%lu\n", c->MEMBER); \ } #define SHOW_CPUDATA_UINT_NAME(NAME, MEMBER) \ -static ssize_t show_##NAME(struct sys_device *dev, char *buf) \ +static ssize_t show_##NAME(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ cpuinfo_sparc *c = &cpu_data(dev->id); \ return sprintf(buf, "%u\n", c->MEMBER); \ diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c index c4a7ec31394c..e6a4d5f67643 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_64.c +++ b/arch/x86/kernel/cpu/mcheck/mce_64.c @@ -762,10 +762,14 @@ DEFINE_PER_CPU(struct sys_device, device_mce); /* Why are there no generic functions for this? */ #define ACCESSOR(name, var, start) \ - static ssize_t show_ ## name(struct sys_device *s, char *buf) { \ + static ssize_t show_ ## name(struct sys_device *s, \ + struct sysdev_attribute *attr, \ + char *buf) { \ return sprintf(buf, "%lx\n", (unsigned long)var); \ } \ - static ssize_t set_ ## name(struct sys_device *s,const char *buf,size_t siz) { \ + static ssize_t set_ ## name(struct sys_device *s, \ + struct sysdev_attribute *attr, \ + const char *buf, size_t siz) { \ char *end; \ unsigned long new = simple_strtoul(buf, &end, 0); \ if (end == buf) return -EINVAL; \ @@ -786,14 +790,16 @@ ACCESSOR(bank3ctl,bank[3],mce_restart()) ACCESSOR(bank4ctl,bank[4],mce_restart()) ACCESSOR(bank5ctl,bank[5],mce_restart()) -static ssize_t show_trigger(struct sys_device *s, char *buf) +static ssize_t show_trigger(struct sys_device *s, struct sysdev_attribute *attr, + char *buf) { strcpy(buf, trigger); strcat(buf, "\n"); return strlen(trigger) + 1; } -static ssize_t set_trigger(struct sys_device *s,const char *buf,size_t siz) +static ssize_t set_trigger(struct sys_device *s, struct sysdev_attribute *attr, + const char *buf,size_t siz) { char *p; int len; diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index 1f4cc48c14c6..d5ae2243f0b9 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -35,6 +35,7 @@ atomic_t therm_throt_en = ATOMIC_INIT(0); #define define_therm_throt_sysdev_show_func(name) \ static ssize_t therm_throt_sysdev_show_##name(struct sys_device *dev, \ + struct sysdev_attribute *attr, \ char *buf) \ { \ unsigned int cpu = dev->id; \ diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c index 56b933119a04..fc4790638b69 100644 --- a/arch/x86/kernel/microcode.c +++ b/arch/x86/kernel/microcode.c @@ -644,7 +644,9 @@ static void microcode_fini_cpu(int cpu) mutex_unlock(µcode_mutex); } -static ssize_t reload_store(struct sys_device *dev, const char *buf, size_t sz) +static ssize_t reload_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t sz) { struct ucode_cpu_info *uci = ucode_cpu_info + dev->id; char *end; @@ -674,14 +676,16 @@ static ssize_t reload_store(struct sys_device *dev, const char *buf, size_t sz) return sz; } -static ssize_t version_show(struct sys_device *dev, char *buf) +static ssize_t version_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct ucode_cpu_info *uci = ucode_cpu_info + dev->id; return sprintf(buf, "0x%x\n", uci->rev); } -static ssize_t pf_show(struct sys_device *dev, char *buf) +static ssize_t pf_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct ucode_cpu_info *uci = ucode_cpu_info + dev->id; diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index e38dfed41d80..20537d507909 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -21,15 +21,16 @@ EXPORT_SYMBOL(cpu_sysdev_class); static DEFINE_PER_CPU(struct sys_device *, cpu_sys_devices); #ifdef CONFIG_HOTPLUG_CPU -static ssize_t show_online(struct sys_device *dev, char *buf) +static ssize_t show_online(struct sys_device *dev, struct sysdev_attribute *attr, + char *buf) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); return sprintf(buf, "%u\n", !!cpu_online(cpu->sysdev.id)); } -static ssize_t __ref store_online(struct sys_device *dev, const char *buf, - size_t count) +static ssize_t __ref store_online(struct sys_device *dev, struct sysdev_attribute *attr, + const char *buf, size_t count) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); ssize_t ret; @@ -80,7 +81,8 @@ static inline void register_cpu_control(struct cpu *cpu) #ifdef CONFIG_KEXEC #include -static ssize_t show_crash_notes(struct sys_device *dev, char *buf) +static ssize_t show_crash_notes(struct sys_device *dev, struct sysdev_attribute *attr, + char *buf) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); ssize_t rc; diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 937e8258981d..4d4e0e7b6e92 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -92,7 +92,8 @@ unregister_memory(struct memory_block *memory, struct mem_section *section) * uses. */ -static ssize_t show_mem_phys_index(struct sys_device *dev, char *buf) +static ssize_t show_mem_phys_index(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); @@ -102,7 +103,8 @@ static ssize_t show_mem_phys_index(struct sys_device *dev, char *buf) /* * online, offline, going offline, etc. */ -static ssize_t show_mem_state(struct sys_device *dev, char *buf) +static ssize_t show_mem_state(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); @@ -217,7 +219,8 @@ out: } static ssize_t -store_mem_state(struct sys_device *dev, const char *buf, size_t count) +store_mem_state(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { struct memory_block *mem; unsigned int phys_section_nr; @@ -248,7 +251,8 @@ out: * s.t. if I offline all of these sections I can then * remove the physical device? */ -static ssize_t show_phys_device(struct sys_device *dev, char *buf) +static ssize_t show_phys_device(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); diff --git a/drivers/base/node.c b/drivers/base/node.c index 0f867a083338..5116b78c6325 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -36,11 +36,13 @@ static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf) return len; } -static inline ssize_t node_read_cpumask(struct sys_device *dev, char *buf) +static inline ssize_t node_read_cpumask(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { return node_read_cpumap(dev, 0, buf); } -static inline ssize_t node_read_cpulist(struct sys_device *dev, char *buf) +static inline ssize_t node_read_cpulist(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { return node_read_cpumap(dev, 1, buf); } @@ -49,7 +51,8 @@ static SYSDEV_ATTR(cpumap, S_IRUGO, node_read_cpumask, NULL); static SYSDEV_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL); #define K(x) ((x) << (PAGE_SHIFT - 10)) -static ssize_t node_read_meminfo(struct sys_device * dev, char * buf) +static ssize_t node_read_meminfo(struct sys_device * dev, + struct sysdev_attribute *attr, char * buf) { int n; int nid = dev->id; @@ -112,7 +115,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf) #undef K static SYSDEV_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL); -static ssize_t node_read_numastat(struct sys_device * dev, char * buf) +static ssize_t node_read_numastat(struct sys_device * dev, + struct sysdev_attribute *attr, char * buf) { return sprintf(buf, "numa_hit %lu\n" @@ -130,7 +134,8 @@ static ssize_t node_read_numastat(struct sys_device * dev, char * buf) } static SYSDEV_ATTR(numastat, S_IRUGO, node_read_numastat, NULL); -static ssize_t node_read_distance(struct sys_device * dev, char * buf) +static ssize_t node_read_distance(struct sys_device * dev, + struct sysdev_attribute *attr, char * buf) { int nid = dev->id; int len = 0; diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 50690d9df248..dc7dace14e1c 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -36,7 +36,7 @@ sysdev_show(struct kobject * kobj, struct attribute * attr, char * buffer) struct sysdev_attribute * sysdev_attr = to_sysdev_attr(attr); if (sysdev_attr->show) - return sysdev_attr->show(sysdev, buffer); + return sysdev_attr->show(sysdev, sysdev_attr, buffer); return -EIO; } @@ -49,7 +49,7 @@ sysdev_store(struct kobject * kobj, struct attribute * attr, struct sysdev_attribute * sysdev_attr = to_sysdev_attr(attr); if (sysdev_attr->store) - return sysdev_attr->store(sysdev, buffer, count); + return sysdev_attr->store(sysdev, sysdev_attr, buffer, count); return -EIO; } diff --git a/drivers/base/topology.c b/drivers/base/topology.c index 3f6d9b0a6abe..199cd97e32e6 100644 --- a/drivers/base/topology.c +++ b/drivers/base/topology.c @@ -34,7 +34,8 @@ static SYSDEV_ATTR(_name, 0444, show_##_name, NULL) #define define_id_show_func(name) \ -static ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_##name(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ unsigned int cpu = dev->id; \ return sprintf(buf, "%d\n", topology_##name(cpu)); \ @@ -59,14 +60,17 @@ static ssize_t show_cpumap(int type, cpumask_t *mask, char *buf) #ifdef arch_provides_topology_pointers #define define_siblings_show_map(name) \ -static ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_##name(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ unsigned int cpu = dev->id; \ return show_cpumap(0, &(topology_##name(cpu)), buf); \ } #define define_siblings_show_list(name) \ -static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ +static ssize_t show_##name##_list(struct sys_device *dev, \ + struct sysdev_attribute *attr, \ + char *buf) \ { \ unsigned int cpu = dev->id; \ return show_cpumap(1, &(topology_##name(cpu)), buf); \ @@ -74,7 +78,8 @@ static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ #else #define define_siblings_show_map(name) \ -static ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_##name(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ unsigned int cpu = dev->id; \ cpumask_t mask = topology_##name(cpu); \ @@ -82,7 +87,9 @@ static ssize_t show_##name(struct sys_device *dev, char *buf) \ } #define define_siblings_show_list(name) \ -static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ +static ssize_t show_##name##_list(struct sys_device *dev, \ + struct sysdev_attribute *attr, \ + char *buf) \ { \ unsigned int cpu = dev->id; \ cpumask_t mask = topology_##name(cpu); \ diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index e949618b9be0..31a0e0b455b6 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -21,7 +21,8 @@ static int __init cpuidle_sysfs_setup(char *unused) } __setup("cpuidle_sysfs_switch", cpuidle_sysfs_setup); -static ssize_t show_available_governors(struct sys_device *dev, char *buf) +static ssize_t show_available_governors(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t i = 0; struct cpuidle_governor *tmp; @@ -39,7 +40,8 @@ out: return i; } -static ssize_t show_current_driver(struct sys_device *dev, char *buf) +static ssize_t show_current_driver(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t ret; @@ -53,7 +55,8 @@ static ssize_t show_current_driver(struct sys_device *dev, char *buf) return ret; } -static ssize_t show_current_governor(struct sys_device *dev, char *buf) +static ssize_t show_current_governor(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t ret; @@ -68,6 +71,7 @@ static ssize_t show_current_governor(struct sys_device *dev, char *buf) } static ssize_t store_current_governor(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { char gov_name[CPUIDLE_NAME_LEN]; diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 591bc29b55f5..d4427cb86979 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -610,6 +610,7 @@ static ssize_t show_target_kb(struct sys_device *dev, char *buf) } static ssize_t store_target_kb(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h index f2767bc6b735..8dcf3162b21b 100644 --- a/include/linux/sysdev.h +++ b/include/linux/sysdev.h @@ -99,8 +99,9 @@ extern void sysdev_unregister(struct sys_device *); struct sysdev_attribute { struct attribute attr; - ssize_t (*show)(struct sys_device *, char *); - ssize_t (*store)(struct sys_device *, const char *, size_t); + ssize_t (*show)(struct sys_device *, struct sysdev_attribute *, char *); + ssize_t (*store)(struct sys_device *, struct sysdev_attribute *, + const char *, size_t); }; diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c index 092e4c620af9..a56f629b057a 100644 --- a/kernel/rtmutex-tester.c +++ b/kernel/rtmutex-tester.c @@ -297,8 +297,8 @@ static int test_func(void *data) * * opcode:data */ -static ssize_t sysfs_test_command(struct sys_device *dev, const char *buf, - size_t count) +static ssize_t sysfs_test_command(struct sys_device *dev, struct sysdev_attribute *attr, + const char *buf, size_t count) { struct sched_param schedpar; struct test_thread_data *td; @@ -360,7 +360,8 @@ static ssize_t sysfs_test_command(struct sys_device *dev, const char *buf, * @dev: thread to query * @buf: char buffer to be filled with thread status info */ -static ssize_t sysfs_test_status(struct sys_device *dev, char *buf) +static ssize_t sysfs_test_status(struct sys_device *dev, struct sysdev_attribute *attr, + char *buf) { struct test_thread_data *td; struct task_struct *tsk; diff --git a/kernel/sched.c b/kernel/sched.c index 99e6d850ecab..b1104ea5d255 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7737,11 +7737,13 @@ static ssize_t sched_power_savings_store(const char *buf, size_t count, int smt) } #ifdef CONFIG_SCHED_MC -static ssize_t sched_mc_power_savings_show(struct sys_device *dev, char *page) +static ssize_t sched_mc_power_savings_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *page) { return sprintf(page, "%u\n", sched_mc_power_savings); } static ssize_t sched_mc_power_savings_store(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { return sched_power_savings_store(buf, count, 0); @@ -7751,11 +7753,13 @@ static SYSDEV_ATTR(sched_mc_power_savings, 0644, sched_mc_power_savings_show, #endif #ifdef CONFIG_SCHED_SMT -static ssize_t sched_smt_power_savings_show(struct sys_device *dev, char *page) +static ssize_t sched_smt_power_savings_show(struct sys_device *dev, + struct sysdev_attribute *attr, char *page) { return sprintf(page, "%u\n", sched_smt_power_savings); } static ssize_t sched_smt_power_savings_store(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { return sched_power_savings_store(buf, count, 1); diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index dadde5361f32..b1c2da81b050 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -376,7 +376,8 @@ void clocksource_unregister(struct clocksource *cs) * Provides sysfs interface for listing current clocksource. */ static ssize_t -sysfs_show_current_clocksources(struct sys_device *dev, char *buf) +sysfs_show_current_clocksources(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t count = 0; @@ -397,6 +398,7 @@ sysfs_show_current_clocksources(struct sys_device *dev, char *buf) * clocksource selction. */ static ssize_t sysfs_override_clocksource(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { struct clocksource *ovr = NULL; @@ -449,7 +451,9 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev, * Provides sysfs interface for listing registered clocksources */ static ssize_t -sysfs_show_available_clocksources(struct sys_device *dev, char *buf) +sysfs_show_available_clocksources(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) { struct clocksource *src; ssize_t count = 0; -- cgit v1.2.3 From 9800794ac11d4646384b3a310dfd1fe2eed577bf Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 1 Jul 2008 18:48:42 +0200 Subject: sysdev: Add utility functions for simple int/ulong variable sysdev attributes This adds a new sysdev_ext_attribute that stores a pointer to the variable it manages and some utility functions/macro to easily use them. Previously all users wrote custom macros to generate show/store functions for each variable, with this it is possible to avoid that in many cases. Signed-off-by: Andi Kleen Signed-off-by: Greg Kroah-Hartman --- drivers/base/sys.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/sysdev.h | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 83 insertions(+) (limited to 'include') diff --git a/drivers/base/sys.c b/drivers/base/sys.c index dc7dace14e1c..40fc14f03540 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -479,3 +479,52 @@ int __init system_bus_init(void) EXPORT_SYMBOL_GPL(sysdev_register); EXPORT_SYMBOL_GPL(sysdev_unregister); + +#define to_ext_attr(x) container_of(x, struct sysdev_ext_attribute, attr) + +ssize_t sysdev_store_ulong(struct sys_device *sysdev, + struct sysdev_attribute *attr, + const char *buf, size_t size) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + char *end; + unsigned long new = simple_strtoul(buf, &end, 0); + if (end == buf) + return -EINVAL; + *(unsigned long *)(ea->var) = new; + return end - buf; +} +EXPORT_SYMBOL_GPL(sysdev_store_ulong); + +ssize_t sysdev_show_ulong(struct sys_device *sysdev, + struct sysdev_attribute *attr, + char *buf) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + return snprintf(buf, PAGE_SIZE, "%lx\n", *(unsigned long *)(ea->var)); +} +EXPORT_SYMBOL_GPL(sysdev_show_ulong); + +ssize_t sysdev_store_int(struct sys_device *sysdev, + struct sysdev_attribute *attr, + const char *buf, size_t size) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + char *end; + long new = simple_strtol(buf, &end, 0); + if (end == buf || new > INT_MAX || new < INT_MIN) + return -EINVAL; + *(int *)(ea->var) = new; + return end - buf; +} +EXPORT_SYMBOL_GPL(sysdev_store_int); + +ssize_t sysdev_show_int(struct sys_device *sysdev, + struct sysdev_attribute *attr, + char *buf) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + return snprintf(buf, PAGE_SIZE, "%d\n", *(int *)(ea->var)); +} +EXPORT_SYMBOL_GPL(sysdev_show_int); + diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h index 8dcf3162b21b..f395bb3fa2f2 100644 --- a/include/linux/sysdev.h +++ b/include/linux/sysdev.h @@ -119,4 +119,38 @@ struct sysdev_attribute { extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *); extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *); +struct sysdev_ext_attribute { + struct sysdev_attribute attr; + void *var; +}; + +/* + * Support for simple variable sysdev attributes. + * The pointer to the variable is stored in a sysdev_ext_attribute + */ + +/* Add more types as needed */ + +extern ssize_t sysdev_show_ulong(struct sys_device *, struct sysdev_attribute *, + char *); +extern ssize_t sysdev_store_ulong(struct sys_device *, + struct sysdev_attribute *, const char *, size_t); +extern ssize_t sysdev_show_int(struct sys_device *, struct sysdev_attribute *, + char *); +extern ssize_t sysdev_store_int(struct sys_device *, + struct sysdev_attribute *, const char *, size_t); + +#define _SYSDEV_ULONG_ATTR(_name, _mode, _var) \ + { _SYSDEV_ATTR(_name, _mode, sysdev_show_ulong, sysdev_store_ulong), \ + &(_var) } +#define SYSDEV_ULONG_ATTR(_name, _mode, _var) \ + struct sysdev_ext_attribute attr_##_name = \ + _SYSDEV_ULONG_ATTR(_name, _mode, _var); +#define _SYSDEV_INT_ATTR(_name, _mode, _var) \ + { _SYSDEV_ATTR(_name, _mode, sysdev_show_int, sysdev_store_int), \ + &(_var) } +#define SYSDEV_INT_ATTR(_name, _mode, _var) \ + struct sysdev_ext_attribute attr_##_name = \ + _SYSDEV_INT_ATTR(_name, _mode, _var); + #endif /* _SYSDEV_H_ */ -- cgit v1.2.3 From eadcf0d704a46979c29984fa05f1fc413c775bcb Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 2 Jul 2008 12:46:22 -0700 Subject: MTD: handle pci_name() being const This changes the MTD core to handle pci_name() now returning a constant string. Cc: David Woodhouse Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/devices/block2mtd.c | 8 +++++--- include/linux/mtd/map.h | 2 +- include/linux/mtd/mtd.h | 2 +- 3 files changed, 7 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 519d942e7940..7b72a1b36115 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -241,6 +241,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) { struct block_device *bdev; struct block2mtd_dev *dev; + char *name; if (!devname) return NULL; @@ -279,12 +280,13 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) /* Setup the MTD structure */ /* make the name contain the block device in */ - dev->mtd.name = kmalloc(sizeof("block2mtd: ") + strlen(devname), + name = kmalloc(sizeof("block2mtd: ") + strlen(devname) + 1, GFP_KERNEL); - if (!dev->mtd.name) + if (!name) goto devinit_err; - sprintf(dev->mtd.name, "block2mtd: %s", devname); + sprintf(name, "block2mtd: %s", devname); + dev->mtd.name = name; dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; dev->mtd.erasesize = erase_size; diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index a9fae032ba81..9c1d95491f8b 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -189,7 +189,7 @@ typedef union { */ struct map_info { - char *name; + const char *name; unsigned long size; resource_size_t phys; #define NO_XIP (-1UL) diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 245f9098e171..8b5d49133ec6 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -121,7 +121,7 @@ struct mtd_info { u_int32_t oobavail; // Available OOB bytes per block // Kernel-only stuff starts here. - char *name; + const char *name; int index; /* ecc layout structure pointer - read only ! */ -- cgit v1.2.3 From 6a4a636fad018500c5db7a2b56a00caeb21cbb2c Mon Sep 17 00:00:00 2001 From: Jon Smirl Date: Sun, 20 Jul 2008 11:27:22 -0400 Subject: powerpc/mpc5200: Add AC97 register definitions for the MPC52xx PSC Needed by the PSC AC97 sound driver Signed-off-by: Jon Smirl Signed-off-by: Grant Likely --- include/asm-powerpc/mpc52xx_psc.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-powerpc/mpc52xx_psc.h b/include/asm-powerpc/mpc52xx_psc.h index 710c5d36efaa..5467c2c0faa7 100644 --- a/include/asm-powerpc/mpc52xx_psc.h +++ b/include/asm-powerpc/mpc52xx_psc.h @@ -132,8 +132,12 @@ struct mpc52xx_psc { u8 reserved5[3]; u8 ctlr; /* PSC + 0x1c */ u8 reserved6[3]; - u16 ccr; /* PSC + 0x20 */ - u8 reserved7[14]; + /* BitClkDiv field of CCR is byte swapped in + * the hardware for mpc5200/b compatibility */ + u32 ccr; /* PSC + 0x20 */ + u32 ac97_slots; /* PSC + 0x24 */ + u32 ac97_cmd; /* PSC + 0x28 */ + u32 ac97_data; /* PSC + 0x2c */ u8 ivr; /* PSC + 0x30 */ u8 reserved8[3]; u8 ip; /* PSC + 0x34 */ -- cgit v1.2.3 From a19dd1bd7df839c52a668abcf288c2239442c3c9 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 22 Jul 2008 01:13:54 -0600 Subject: powerpc/mpc5200: add PSC SICR bit definitions Required by the PSC I2S audio driver. Signed-off-by: Grant Likely --- include/asm-powerpc/mpc52xx_psc.h | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-powerpc/mpc52xx_psc.h b/include/asm-powerpc/mpc52xx_psc.h index 5467c2c0faa7..8917ed630565 100644 --- a/include/asm-powerpc/mpc52xx_psc.h +++ b/include/asm-powerpc/mpc52xx_psc.h @@ -60,10 +60,12 @@ #define MPC52xx_PSC_RXTX_FIFO_ALARM 0x0002 #define MPC52xx_PSC_RXTX_FIFO_EMPTY 0x0001 -/* PSC interrupt mask bits */ +/* PSC interrupt status/mask bits */ #define MPC52xx_PSC_IMR_TXRDY 0x0100 #define MPC52xx_PSC_IMR_RXRDY 0x0200 #define MPC52xx_PSC_IMR_DB 0x0400 +#define MPC52xx_PSC_IMR_TXEMP 0x0800 +#define MPC52xx_PSC_IMR_ORERR 0x1000 #define MPC52xx_PSC_IMR_IPC 0x8000 /* PSC input port change bit */ @@ -92,6 +94,34 @@ #define MPC52xx_PSC_RFNUM_MASK 0x01ff +#define MPC52xx_PSC_SICR_DTS1 (1 << 29) +#define MPC52xx_PSC_SICR_SHDR (1 << 28) +#define MPC52xx_PSC_SICR_SIM_MASK (0xf << 24) +#define MPC52xx_PSC_SICR_SIM_UART (0x0 << 24) +#define MPC52xx_PSC_SICR_SIM_UART_DCD (0x8 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_8 (0x1 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_16 (0x2 << 24) +#define MPC52xx_PSC_SICR_SIM_AC97 (0x3 << 24) +#define MPC52xx_PSC_SICR_SIM_SIR (0x8 << 24) +#define MPC52xx_PSC_SICR_SIM_SIR_DCD (0xc << 24) +#define MPC52xx_PSC_SICR_SIM_MIR (0x5 << 24) +#define MPC52xx_PSC_SICR_SIM_FIR (0x6 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_24 (0x7 << 24) +#define MPC52xx_PSC_SICR_SIM_CODEC_32 (0xf << 24) +#define MPC52xx_PSC_SICR_GENCLK (1 << 23) +#define MPC52xx_PSC_SICR_I2S (1 << 22) +#define MPC52xx_PSC_SICR_CLKPOL (1 << 21) +#define MPC52xx_PSC_SICR_SYNCPOL (1 << 20) +#define MPC52xx_PSC_SICR_CELLSLAVE (1 << 19) +#define MPC52xx_PSC_SICR_CELL2XCLK (1 << 18) +#define MPC52xx_PSC_SICR_ESAI (1 << 17) +#define MPC52xx_PSC_SICR_ENAC97 (1 << 16) +#define MPC52xx_PSC_SICR_SPI (1 << 15) +#define MPC52xx_PSC_SICR_MSTR (1 << 14) +#define MPC52xx_PSC_SICR_CPOL (1 << 13) +#define MPC52xx_PSC_SICR_CPHA (1 << 12) +#define MPC52xx_PSC_SICR_USEEOF (1 << 11) +#define MPC52xx_PSC_SICR_DISABLEEOF (1 << 10) /* Structure of the hardware registers */ struct mpc52xx_psc { -- cgit v1.2.3 From c2e3277f875b83e5adc34e96989d6d87ec5f80f7 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 22 Jul 2008 15:40:46 +1000 Subject: x86: fix pte_flags() to only return flags, fix lguest (updated) (Jeremy said: rusty: use PTE_MASK rusty: use PTE_MASK rusty: use PTE_MASK When I asked: jsgf: does that include the NX flag? He responded eloquently: rusty: use PTE_MASK rusty: use PTE_MASK yes, it's the official constant of masking flags out of ptes ) Change a15af1c9ea2750a9ff01e51615c45950bad8221b 'x86/paravirt: add pte_flags to just get pte flags' removed lguest's private pte_flags() in favor of a generic one. Unfortunately, the generic one doesn't filter out the non-flags bits: this results in lguest creating corrupt shadow page tables and blowing up host memory. Since noone is supposed to use the pfn part of pte_flags(), it seems safest to always do the filtering. Signed-off-by: Rusty Russell Acked-by: Jeremy Fitzhardinge Signed-off-and-morning-tea-spilled-by: Ingo Molnar --- arch/x86/kernel/paravirt.c | 2 +- include/asm-x86/page.h | 7 ++++++- include/asm-x86/paravirt.h | 3 +++ 3 files changed, 10 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 097d8a6797fa..94da4d52d798 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -443,7 +443,7 @@ struct pv_mmu_ops pv_mmu_ops = { #endif /* PAGETABLE_LEVELS >= 3 */ .pte_val = native_pte_val, - .pte_flags = native_pte_val, + .pte_flags = native_pte_flags, .pgd_val = native_pgd_val, .make_pte = native_make_pte, diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index 28d7b4533b1a..05d9bea2bfd5 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -144,6 +144,11 @@ static inline pteval_t native_pte_val(pte_t pte) return pte.pte; } +static inline pteval_t native_pte_flags(pte_t pte) +{ + return native_pte_val(pte) & ~PTE_MASK; +} + #define pgprot_val(x) ((x).pgprot) #define __pgprot(x) ((pgprot_t) { (x) } ) @@ -165,7 +170,7 @@ static inline pteval_t native_pte_val(pte_t pte) #endif #define pte_val(x) native_pte_val(x) -#define pte_flags(x) native_pte_val(x) +#define pte_flags(x) native_pte_flags(x) #define __pte(x) native_make_pte(x) #endif /* CONFIG_PARAVIRT */ diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index aec9767836b6..5ca4639dc7dd 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1088,6 +1088,9 @@ static inline pteval_t pte_flags(pte_t pte) ret = PVOP_CALL1(pteval_t, pv_mmu_ops.pte_flags, pte.pte); +#ifdef CONFIG_PARAVIRT_DEBUG + BUG_ON(ret & PTE_MASK); +#endif return ret; } -- cgit v1.2.3 From 59438c9fc4f7a92c808c9049bc6b396f98bf954c Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 21 Jul 2008 22:59:42 -0700 Subject: x86: rename PTE_MASK to PTE_PFN_MASK Rusty, in his peevish way, complained that macros defining constants should have a name which somewhat accurately reflects the actual purpose of the constant. Aside from the fact that PTE_MASK gives no clue as to what's actually being masked, and is misleadingly similar to the functionally entirely different PMD_MASK, PUD_MASK and PGD_MASK, I don't really see what the problem is. But if this patch silences the incessent noise, then it will have achieved its goal (TODO: write test-case). Signed-off-by: Jeremy Fitzhardinge Cc: Rusty Russell Signed-off-by: Ingo Molnar --- arch/x86/mm/dump_pagetables.c | 10 +++++----- arch/x86/xen/enlighten.c | 2 +- arch/x86/xen/mmu.c | 8 ++++---- include/asm-x86/page.h | 6 +++--- include/asm-x86/paravirt.h | 2 +- include/asm-x86/pgtable-3level.h | 8 ++++---- include/asm-x86/pgtable.h | 4 ++-- include/asm-x86/pgtable_32.h | 4 ++-- include/asm-x86/pgtable_64.h | 10 +++++----- include/asm-x86/xen/page.h | 2 +- 10 files changed, 28 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index 0bb0caed8971..cc174fc412bc 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -148,8 +148,8 @@ static void note_page(struct seq_file *m, struct pg_state *st, * we have now. "break" is either changing perms, levels or * address space marker. */ - prot = pgprot_val(new_prot) & ~(PTE_MASK); - cur = pgprot_val(st->current_prot) & ~(PTE_MASK); + prot = pgprot_val(new_prot) & ~(PTE_PFN_MASK); + cur = pgprot_val(st->current_prot) & ~(PTE_PFN_MASK); if (!st->level) { /* First entry */ @@ -221,7 +221,7 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr, for (i = 0; i < PTRS_PER_PMD; i++) { st->current_address = normalize_addr(P + i * PMD_LEVEL_MULT); if (!pmd_none(*start)) { - pgprotval_t prot = pmd_val(*start) & ~PTE_MASK; + pgprotval_t prot = pmd_val(*start) & ~PTE_PFN_MASK; if (pmd_large(*start) || !pmd_present(*start)) note_page(m, st, __pgprot(prot), 3); @@ -253,7 +253,7 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, pgd_t addr, for (i = 0; i < PTRS_PER_PUD; i++) { st->current_address = normalize_addr(P + i * PUD_LEVEL_MULT); if (!pud_none(*start)) { - pgprotval_t prot = pud_val(*start) & ~PTE_MASK; + pgprotval_t prot = pud_val(*start) & ~PTE_PFN_MASK; if (pud_large(*start) || !pud_present(*start)) note_page(m, st, __pgprot(prot), 2); @@ -288,7 +288,7 @@ static void walk_pgd_level(struct seq_file *m) for (i = 0; i < PTRS_PER_PGD; i++) { st.current_address = normalize_addr(i * PGD_LEVEL_MULT); if (!pgd_none(*start)) { - pgprotval_t prot = pgd_val(*start) & ~PTE_MASK; + pgprotval_t prot = pgd_val(*start) & ~PTE_PFN_MASK; if (pgd_large(*start) || !pgd_present(*start)) note_page(m, &st, __pgprot(prot), 1); diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 194bbd6e3241..9ff6e3cbf08f 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1435,7 +1435,7 @@ static unsigned long m2p(phys_addr_t maddr) { phys_addr_t paddr; - maddr &= PTE_MASK; + maddr &= PTE_PFN_MASK; paddr = mfn_to_pfn(maddr >> PAGE_SHIFT) << PAGE_SHIFT; return paddr; diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index a44d56e38bd1..0db6912395ed 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -343,8 +343,8 @@ void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, static pteval_t pte_mfn_to_pfn(pteval_t val) { if (val & _PAGE_PRESENT) { - unsigned long mfn = (val & PTE_MASK) >> PAGE_SHIFT; - pteval_t flags = val & ~PTE_MASK; + unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT; + pteval_t flags = val & ~PTE_PFN_MASK; val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags; } @@ -354,8 +354,8 @@ static pteval_t pte_mfn_to_pfn(pteval_t val) static pteval_t pte_pfn_to_mfn(pteval_t val) { if (val & _PAGE_PRESENT) { - unsigned long pfn = (val & PTE_MASK) >> PAGE_SHIFT; - pteval_t flags = val & ~PTE_MASK; + unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT; + pteval_t flags = val & ~PTE_PFN_MASK; val = ((pteval_t)pfn_to_mfn(pfn) << PAGE_SHIFT) | flags; } diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index 05d9bea2bfd5..e99fb9fe6f8a 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -18,8 +18,8 @@ (ie, 32-bit PAE). */ #define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK) -/* PTE_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */ -#define PTE_MASK ((pteval_t)PHYSICAL_PAGE_MASK) +/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */ +#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK) #define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT) #define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1)) @@ -146,7 +146,7 @@ static inline pteval_t native_pte_val(pte_t pte) static inline pteval_t native_pte_flags(pte_t pte) { - return native_pte_val(pte) & ~PTE_MASK; + return native_pte_val(pte) & ~PTE_PFN_MASK; } #define pgprot_val(x) ((x).pgprot) diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 5ca4639dc7dd..fbbde93f12d6 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1089,7 +1089,7 @@ static inline pteval_t pte_flags(pte_t pte) pte.pte); #ifdef CONFIG_PARAVIRT_DEBUG - BUG_ON(ret & PTE_MASK); + BUG_ON(ret & PTE_PFN_MASK); #endif return ret; } diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h index c93dbb6c2624..105057f34032 100644 --- a/include/asm-x86/pgtable-3level.h +++ b/include/asm-x86/pgtable-3level.h @@ -25,7 +25,7 @@ static inline int pud_none(pud_t pud) static inline int pud_bad(pud_t pud) { - return (pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0; + return (pud_val(pud) & ~(PTE_PFN_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0; } static inline int pud_present(pud_t pud) @@ -120,9 +120,9 @@ static inline void pud_clear(pud_t *pudp) write_cr3(pgd); } -#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_MASK)) +#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_PFN_MASK)) -#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_MASK)) +#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_PFN_MASK)) /* Find an entry in the second-level page table.. */ @@ -160,7 +160,7 @@ static inline int pte_none(pte_t pte) static inline unsigned long pte_pfn(pte_t pte) { - return (pte_val(pte) & PTE_MASK) >> PAGE_SHIFT; + return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT; } /* diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index 96aa76e691d8..2b1746c92370 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -53,7 +53,7 @@ _PAGE_DIRTY) /* Set of bits not changed in pte_modify */ -#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_PCD | _PAGE_PWT | \ +#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \ _PAGE_ACCESSED | _PAGE_DIRTY) #define _PAGE_CACHE_MASK (_PAGE_PCD | _PAGE_PWT) @@ -286,7 +286,7 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) return __pgprot(preservebits | addbits); } -#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_MASK) +#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_PFN_MASK) #define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask) diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index 0611abf96a5e..525b53e65b44 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -88,7 +88,7 @@ extern unsigned long pg0[]; /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */ #define pmd_none(x) (!(unsigned long)pmd_val((x))) #define pmd_present(x) (pmd_val((x)) & _PAGE_PRESENT) -#define pmd_bad(x) ((pmd_val(x) & (~PTE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) +#define pmd_bad(x) ((pmd_val(x) & (~PTE_PFN_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) @@ -139,7 +139,7 @@ static inline int pud_large(pud_t pud) { return 0; } #define pmd_page(pmd) (pfn_to_page(pmd_val((pmd)) >> PAGE_SHIFT)) #define pmd_page_vaddr(pmd) \ - ((unsigned long)__va(pmd_val((pmd)) & PTE_MASK)) + ((unsigned long)__va(pmd_val((pmd)) & PTE_PFN_MASK)) #if defined(CONFIG_HIGHPTE) #define pte_offset_map(dir, address) \ diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h index 805d3128bfc4..ac5fff4cc58a 100644 --- a/include/asm-x86/pgtable_64.h +++ b/include/asm-x86/pgtable_64.h @@ -158,17 +158,17 @@ static inline void native_pgd_clear(pgd_t *pgd) static inline int pgd_bad(pgd_t pgd) { - return (pgd_val(pgd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE; + return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; } static inline int pud_bad(pud_t pud) { - return (pud_val(pud) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE; + return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; } static inline int pmd_bad(pmd_t pmd) { - return (pmd_val(pmd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE; + return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; } #define pte_none(x) (!pte_val((x))) @@ -193,7 +193,7 @@ static inline int pmd_bad(pmd_t pmd) * Level 4 access. */ #define pgd_page_vaddr(pgd) \ - ((unsigned long)__va((unsigned long)pgd_val((pgd)) & PTE_MASK)) + ((unsigned long)__va((unsigned long)pgd_val((pgd)) & PTE_PFN_MASK)) #define pgd_page(pgd) (pfn_to_page(pgd_val((pgd)) >> PAGE_SHIFT)) #define pgd_present(pgd) (pgd_val(pgd) & _PAGE_PRESENT) static inline int pgd_large(pgd_t pgd) { return 0; } @@ -216,7 +216,7 @@ static inline int pud_large(pud_t pte) } /* PMD - Level 2 access */ -#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val((pmd)) & PTE_MASK)) +#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val((pmd)) & PTE_PFN_MASK)) #define pmd_page(pmd) (pfn_to_page(pmd_val((pmd)) >> PAGE_SHIFT)) #define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)) diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h index 05e678a86628..7b3835d3b77d 100644 --- a/include/asm-x86/xen/page.h +++ b/include/asm-x86/xen/page.h @@ -124,7 +124,7 @@ static inline unsigned long mfn_to_local_pfn(unsigned long mfn) static inline unsigned long pte_mfn(pte_t pte) { - return (pte.pte & PTE_MASK) >> PAGE_SHIFT; + return (pte.pte & PTE_PFN_MASK) >> PAGE_SHIFT; } static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot) -- cgit v1.2.3 From 77be1fabd024b37423d12f832b1fbdb95dbdf494 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 21 Jul 2008 22:59:56 -0700 Subject: x86: add PTE_FLAGS_MASK PTE_PFN_MASK was getting lonely, so I made it a friend. Signed-off-by: Jeremy Fitzhardinge Cc: Rusty Russell Signed-off-by: Ingo Molnar --- arch/x86/mm/dump_pagetables.c | 6 +++--- arch/x86/xen/mmu.c | 4 ++-- include/asm-x86/page.h | 5 ++++- include/asm-x86/pgtable.h | 2 +- include/asm-x86/pgtable_32.h | 2 +- 5 files changed, 11 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index cc174fc412bc..a20d1fa64b4e 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -221,7 +221,7 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr, for (i = 0; i < PTRS_PER_PMD; i++) { st->current_address = normalize_addr(P + i * PMD_LEVEL_MULT); if (!pmd_none(*start)) { - pgprotval_t prot = pmd_val(*start) & ~PTE_PFN_MASK; + pgprotval_t prot = pmd_val(*start) & PTE_FLAGS_MASK; if (pmd_large(*start) || !pmd_present(*start)) note_page(m, st, __pgprot(prot), 3); @@ -253,7 +253,7 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, pgd_t addr, for (i = 0; i < PTRS_PER_PUD; i++) { st->current_address = normalize_addr(P + i * PUD_LEVEL_MULT); if (!pud_none(*start)) { - pgprotval_t prot = pud_val(*start) & ~PTE_PFN_MASK; + pgprotval_t prot = pud_val(*start) & PTE_FLAGS_MASK; if (pud_large(*start) || !pud_present(*start)) note_page(m, st, __pgprot(prot), 2); @@ -288,7 +288,7 @@ static void walk_pgd_level(struct seq_file *m) for (i = 0; i < PTRS_PER_PGD; i++) { st.current_address = normalize_addr(i * PGD_LEVEL_MULT); if (!pgd_none(*start)) { - pgprotval_t prot = pgd_val(*start) & ~PTE_PFN_MASK; + pgprotval_t prot = pgd_val(*start) & PTE_FLAGS_MASK; if (pgd_large(*start) || !pgd_present(*start)) note_page(m, &st, __pgprot(prot), 1); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 0db6912395ed..aa37469da696 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -344,7 +344,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val) { if (val & _PAGE_PRESENT) { unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT; - pteval_t flags = val & ~PTE_PFN_MASK; + pteval_t flags = val & PTE_FLAGS_MASK; val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags; } @@ -355,7 +355,7 @@ static pteval_t pte_pfn_to_mfn(pteval_t val) { if (val & _PAGE_PRESENT) { unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT; - pteval_t flags = val & ~PTE_PFN_MASK; + pteval_t flags = val & PTE_FLAGS_MASK; val = ((pteval_t)pfn_to_mfn(pfn) << PAGE_SHIFT) | flags; } diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index e99fb9fe6f8a..6c846228948d 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -21,6 +21,9 @@ /* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */ #define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK) +/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */ +#define PTE_FLAGS_MASK (~PTE_PFN_MASK) + #define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT) #define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1)) @@ -146,7 +149,7 @@ static inline pteval_t native_pte_val(pte_t pte) static inline pteval_t native_pte_flags(pte_t pte) { - return native_pte_val(pte) & ~PTE_PFN_MASK; + return native_pte_val(pte) & PTE_FLAGS_MASK; } #define pgprot_val(x) ((x).pgprot) diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index 2b1746c92370..3e5dbc4195f4 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -286,7 +286,7 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) return __pgprot(preservebits | addbits); } -#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_PFN_MASK) +#define pte_pgprot(x) __pgprot(pte_flags(x) & PTE_FLAGS_MASK) #define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask) diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index 525b53e65b44..5c3b26567a95 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -88,7 +88,7 @@ extern unsigned long pg0[]; /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */ #define pmd_none(x) (!(unsigned long)pmd_val((x))) #define pmd_present(x) (pmd_val((x)) & _PAGE_PRESENT) -#define pmd_bad(x) ((pmd_val(x) & (~PTE_PFN_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) +#define pmd_bad(x) ((pmd_val(x) & (PTE_FLAGS_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) -- cgit v1.2.3 From af5406895a05720a879dc33e2f4878fa503e81b3 Mon Sep 17 00:00:00 2001 From: Richard Kennedy Date: Tue, 22 Jul 2008 19:24:26 -0500 Subject: module: reorder struct module to save space on 64 bit builds reorder struct module to save space on 64 bit builds. saves 1 cacheline_size (128 on default x86_64 & 64 on AMD Opteron/athlon) when CONFIG_MODULE_UNLOAD=y. Signed-off-by: Richard Kennedy Signed-off-by: Rusty Russell --- include/linux/module.h | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/include/linux/module.h b/include/linux/module.h index 3e03b1acbc94..63f0eb69e214 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -249,27 +249,28 @@ struct module /* Exported symbols */ const struct kernel_symbol *syms; - unsigned int num_syms; const unsigned long *crcs; + unsigned int num_syms; /* GPL-only exported symbols. */ - const struct kernel_symbol *gpl_syms; unsigned int num_gpl_syms; + const struct kernel_symbol *gpl_syms; const unsigned long *gpl_crcs; /* unused exported symbols. */ const struct kernel_symbol *unused_syms; - unsigned int num_unused_syms; const unsigned long *unused_crcs; + unsigned int num_unused_syms; + /* GPL-only, unused exported symbols. */ - const struct kernel_symbol *unused_gpl_syms; unsigned int num_unused_gpl_syms; + const struct kernel_symbol *unused_gpl_syms; const unsigned long *unused_gpl_crcs; /* symbols that will be GPL-only in the near future. */ const struct kernel_symbol *gpl_future_syms; - unsigned int num_gpl_future_syms; const unsigned long *gpl_future_crcs; + unsigned int num_gpl_future_syms; /* Exception table */ unsigned int num_exentries; @@ -300,23 +301,9 @@ struct module #ifdef CONFIG_GENERIC_BUG /* Support for BUG */ + unsigned num_bugs; struct list_head bug_list; struct bug_entry *bug_table; - unsigned num_bugs; -#endif - -#ifdef CONFIG_MODULE_UNLOAD - /* Reference counts */ - struct module_ref ref[NR_CPUS]; - - /* What modules depend on me? */ - struct list_head modules_which_use_me; - - /* Who is waiting for us to be unloaded */ - struct task_struct *waiter; - - /* Destruction function. */ - void (*exit)(void); #endif #ifdef CONFIG_KALLSYMS @@ -342,6 +329,21 @@ struct module struct marker *markers; unsigned int num_markers; #endif + +#ifdef CONFIG_MODULE_UNLOAD + /* What modules depend on me? */ + struct list_head modules_which_use_me; + + /* Who is waiting for us to be unloaded */ + struct task_struct *waiter; + + /* Destruction function. */ + void (*exit)(void); + + /* Reference counts */ + struct module_ref ref[NR_CPUS]; +#endif + }; #ifndef MODULE_ARCH_INIT #define MODULE_ARCH_INIT {} -- cgit v1.2.3 From f7f5b67557eac1131ba6532522e3c50eced34238 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Tue, 22 Jul 2008 19:24:26 -0500 Subject: Shrink struct module: CONFIG_UNUSED_SYMBOLS ifdefs module.c and module.h conatains code for finding exported symbols which are declared with EXPORT_UNUSED_SYMBOL, and this code is compiled in even if CONFIG_UNUSED_SYMBOLS is not set and thus there can be no EXPORT_UNUSED_SYMBOLs in modules anyway (because EXPORT_UNUSED_SYMBOL(x) are compiled out to nothing then). This patch adds required #ifdefs. Signed-off-by: Denys Vlasenko Signed-off-by: Rusty Russell --- include/linux/module.h | 2 ++ init/Kconfig | 4 ++-- kernel/module.c | 49 ++++++++++++++++++++++++++++++++++--------------- 3 files changed, 38 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/include/linux/module.h b/include/linux/module.h index 63f0eb69e214..a860a2c1f379 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -257,6 +257,7 @@ struct module const struct kernel_symbol *gpl_syms; const unsigned long *gpl_crcs; +#ifdef CONFIG_UNUSED_SYMBOLS /* unused exported symbols. */ const struct kernel_symbol *unused_syms; const unsigned long *unused_crcs; @@ -266,6 +267,7 @@ struct module unsigned int num_unused_gpl_syms; const struct kernel_symbol *unused_gpl_syms; const unsigned long *unused_gpl_crcs; +#endif /* symbols that will be GPL-only in the near future. */ const struct kernel_symbol *gpl_future_syms; diff --git a/init/Kconfig b/init/Kconfig index 6199d1120900..c8578f9ee31d 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -856,8 +856,8 @@ config MODULE_UNLOAD help Without this option you will not be able to unload any modules (note that some modules may not be unloadable - anyway), which makes your kernel slightly smaller and - simpler. If unsure, say Y. + anyway), which makes your kernel smaller, faster + and simpler. If unsure, say Y. config MODULE_FORCE_UNLOAD bool "Forced module unloading" diff --git a/kernel/module.c b/kernel/module.c index c51c089c666e..ea9580521eb1 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -134,17 +134,19 @@ extern const struct kernel_symbol __start___ksymtab_gpl[]; extern const struct kernel_symbol __stop___ksymtab_gpl[]; extern const struct kernel_symbol __start___ksymtab_gpl_future[]; extern const struct kernel_symbol __stop___ksymtab_gpl_future[]; -extern const struct kernel_symbol __start___ksymtab_unused[]; -extern const struct kernel_symbol __stop___ksymtab_unused[]; -extern const struct kernel_symbol __start___ksymtab_unused_gpl[]; -extern const struct kernel_symbol __stop___ksymtab_unused_gpl[]; extern const struct kernel_symbol __start___ksymtab_gpl_future[]; extern const struct kernel_symbol __stop___ksymtab_gpl_future[]; extern const unsigned long __start___kcrctab[]; extern const unsigned long __start___kcrctab_gpl[]; extern const unsigned long __start___kcrctab_gpl_future[]; +#ifdef CONFIG_UNUSED_SYMBOLS +extern const struct kernel_symbol __start___ksymtab_unused[]; +extern const struct kernel_symbol __stop___ksymtab_unused[]; +extern const struct kernel_symbol __start___ksymtab_unused_gpl[]; +extern const struct kernel_symbol __stop___ksymtab_unused_gpl[]; extern const unsigned long __start___kcrctab_unused[]; extern const unsigned long __start___kcrctab_unused_gpl[]; +#endif #ifndef CONFIG_MODVERSIONS #define symversion(base, idx) NULL @@ -198,12 +200,14 @@ static bool each_symbol(bool (*fn)(const struct symsearch *arr, { __start___ksymtab_gpl_future, __stop___ksymtab_gpl_future, __start___kcrctab_gpl_future, WILL_BE_GPL_ONLY, false }, +#ifdef CONFIG_UNUSED_SYMBOLS { __start___ksymtab_unused, __stop___ksymtab_unused, __start___kcrctab_unused, NOT_GPL_ONLY, true }, { __start___ksymtab_unused_gpl, __stop___ksymtab_unused_gpl, __start___kcrctab_unused_gpl, GPL_ONLY, true }, +#endif }; if (each_symbol_in_section(arr, ARRAY_SIZE(arr), NULL, fn, data)) @@ -220,6 +224,7 @@ static bool each_symbol(bool (*fn)(const struct symsearch *arr, mod->gpl_future_syms + mod->num_gpl_future_syms, mod->gpl_future_crcs, WILL_BE_GPL_ONLY, false }, +#ifdef CONFIG_UNUSED_SYMBOLS { mod->unused_syms, mod->unused_syms + mod->num_unused_syms, mod->unused_crcs, @@ -228,6 +233,7 @@ static bool each_symbol(bool (*fn)(const struct symsearch *arr, mod->unused_gpl_syms + mod->num_unused_gpl_syms, mod->unused_gpl_crcs, GPL_ONLY, true }, +#endif }; if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data)) @@ -270,6 +276,7 @@ static bool find_symbol_in_section(const struct symsearch *syms, } } +#ifdef CONFIG_UNUSED_SYMBOLS if (syms->unused && fsa->warn) { printk(KERN_WARNING "Symbol %s is marked as UNUSED, " "however this module is using it.\n", fsa->name); @@ -281,6 +288,7 @@ static bool find_symbol_in_section(const struct symsearch *syms, "mailinglist together with submitting your code for " "inclusion.\n"); } +#endif fsa->owner = owner; fsa->crc = symversion(syms->crcs, symnum); @@ -1476,8 +1484,10 @@ static int verify_export_symbols(struct module *mod) { mod->syms, mod->num_syms }, { mod->gpl_syms, mod->num_gpl_syms }, { mod->gpl_future_syms, mod->num_gpl_future_syms }, +#ifdef CONFIG_UNUSED_SYMBOLS { mod->unused_syms, mod->num_unused_syms }, { mod->unused_gpl_syms, mod->num_unused_gpl_syms }, +#endif }; for (i = 0; i < ARRAY_SIZE(arr); i++) { @@ -1795,10 +1805,12 @@ static struct module *load_module(void __user *umod, unsigned int gplfutureindex; unsigned int gplfuturecrcindex; unsigned int unwindex = 0; +#ifdef CONFIG_UNUSED_SYMBOLS unsigned int unusedindex; unsigned int unusedcrcindex; unsigned int unusedgplindex; unsigned int unusedgplcrcindex; +#endif unsigned int markersindex; unsigned int markersstringsindex; struct module *mod; @@ -1881,13 +1893,15 @@ static struct module *load_module(void __user *umod, exportindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab"); gplindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_gpl"); gplfutureindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_gpl_future"); - unusedindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused"); - unusedgplindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused_gpl"); crcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab"); gplcrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_gpl"); gplfuturecrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_gpl_future"); +#ifdef CONFIG_UNUSED_SYMBOLS + unusedindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused"); + unusedgplindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused_gpl"); unusedcrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_unused"); unusedgplcrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_unused_gpl"); +#endif setupindex = find_sec(hdr, sechdrs, secstrings, "__param"); exindex = find_sec(hdr, sechdrs, secstrings, "__ex_table"); obsparmindex = find_sec(hdr, sechdrs, secstrings, "__obsparm"); @@ -2049,14 +2063,15 @@ static struct module *load_module(void __user *umod, mod->gpl_crcs = (void *)sechdrs[gplcrcindex].sh_addr; mod->num_gpl_future_syms = sechdrs[gplfutureindex].sh_size / sizeof(*mod->gpl_future_syms); - mod->num_unused_syms = sechdrs[unusedindex].sh_size / - sizeof(*mod->unused_syms); - mod->num_unused_gpl_syms = sechdrs[unusedgplindex].sh_size / - sizeof(*mod->unused_gpl_syms); mod->gpl_future_syms = (void *)sechdrs[gplfutureindex].sh_addr; if (gplfuturecrcindex) mod->gpl_future_crcs = (void *)sechdrs[gplfuturecrcindex].sh_addr; +#ifdef CONFIG_UNUSED_SYMBOLS + mod->num_unused_syms = sechdrs[unusedindex].sh_size / + sizeof(*mod->unused_syms); + mod->num_unused_gpl_syms = sechdrs[unusedgplindex].sh_size / + sizeof(*mod->unused_gpl_syms); mod->unused_syms = (void *)sechdrs[unusedindex].sh_addr; if (unusedcrcindex) mod->unused_crcs = (void *)sechdrs[unusedcrcindex].sh_addr; @@ -2064,13 +2079,17 @@ static struct module *load_module(void __user *umod, if (unusedgplcrcindex) mod->unused_gpl_crcs = (void *)sechdrs[unusedgplcrcindex].sh_addr; +#endif #ifdef CONFIG_MODVERSIONS - if ((mod->num_syms && !crcindex) || - (mod->num_gpl_syms && !gplcrcindex) || - (mod->num_gpl_future_syms && !gplfuturecrcindex) || - (mod->num_unused_syms && !unusedcrcindex) || - (mod->num_unused_gpl_syms && !unusedgplcrcindex)) { + if ((mod->num_syms && !crcindex) + || (mod->num_gpl_syms && !gplcrcindex) + || (mod->num_gpl_future_syms && !gplfuturecrcindex) +#ifdef CONFIG_UNUSED_SYMBOLS + || (mod->num_unused_syms && !unusedcrcindex) + || (mod->num_unused_gpl_syms && !unusedgplcrcindex) +#endif + ) { printk(KERN_WARNING "%s: No versions for exported symbols.\n", mod->name); err = try_to_force_load(mod, "nocrc"); if (err) -- cgit v1.2.3 From 2f0f2a334bc38b61a9afca951185cd3844ee709d Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Tue, 22 Jul 2008 19:24:27 -0500 Subject: module: turn longs into ints for module sizes This shrinks module.o and each *.ko file. And finally, structure members which hold length of module code (four such members there) and count of symbols are converted from longs to ints. We cannot possibly have a module where 32 bits won't be enough to hold such counts. For one, module loading checks module size for sanity before loading, so such insanely big module will fail that test first. Signed-off-by: Denys Vlasenko Signed-off-by: Rusty Russell --- include/linux/module.h | 6 +++--- kernel/module.c | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/module.h b/include/linux/module.h index a860a2c1f379..fce15ebd0e1c 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -288,10 +288,10 @@ struct module void *module_core; /* Here are the sizes of the init and core sections */ - unsigned long init_size, core_size; + unsigned int init_size, core_size; /* The size of the executable code in each section. */ - unsigned long init_text_size, core_text_size; + unsigned int init_text_size, core_text_size; /* The handle returned from unwind_add_table. */ void *unwind_info; @@ -311,7 +311,7 @@ struct module #ifdef CONFIG_KALLSYMS /* We keep the symbol and string tables for kallsyms. */ Elf_Sym *symtab; - unsigned long num_symtab; + unsigned int num_symtab; char *strtab; /* Section attributes */ diff --git a/kernel/module.c b/kernel/module.c index ea9580521eb1..5c7eb0695b3c 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1567,7 +1567,7 @@ static int simplify_symbols(Elf_Shdr *sechdrs, } /* Update size with this section: return offset. */ -static long get_offset(unsigned long *size, Elf_Shdr *sechdr) +static long get_offset(unsigned int *size, Elf_Shdr *sechdr) { long ret; @@ -2562,7 +2562,7 @@ static int m_show(struct seq_file *m, void *p) struct module *mod = list_entry(p, struct module, list); char buf[8]; - seq_printf(m, "%s %lu", + seq_printf(m, "%s %u", mod->name, mod->init_size + mod->core_size); print_unload_info(m, mod); -- cgit v1.2.3 From df648c9fbebb4de50e7a6e76cc253c7cb0421f9b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 8 Jul 2008 19:00:18 +0200 Subject: rework try_then_request_module to do less in non-modular kernels This reworks try_then_request_module to only invoke the "lookup" function "x" once when the kernel is not modular. Signed-off-by: Johannes Berg Signed-off-by: Rusty Russell --- include/linux/kmod.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 5dc13848891b..9bdb28d6660f 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -29,11 +29,12 @@ /* modprobe exit status on success, -ve on error. Return value * usually useless though. */ extern int request_module(const char * name, ...) __attribute__ ((format (printf, 1, 2))); +#define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x))) #else static inline int request_module(const char * name, ...) { return -ENOSYS; } +#define try_then_request_module(x, mod...) (x) #endif -#define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x))) struct key; struct file; -- cgit v1.2.3 From a1ef5adb4cad43460ebba23c5a78cf4a55bb6a5b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 8 Jul 2008 19:00:17 +0200 Subject: remove CONFIG_KMOD from core kernel code Always compile request_module when the kernel allows modules. Signed-off-by: Johannes Berg Signed-off-by: Rusty Russell --- include/linux/kmod.h | 2 +- kernel/exec_domain.c | 2 +- kernel/kmod.c | 2 +- kernel/sysctl.c | 4 ++-- 4 files changed, 5 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 9bdb28d6660f..0509c4ce4857 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -25,7 +25,7 @@ #define KMOD_PATH_LEN 256 -#ifdef CONFIG_KMOD +#ifdef CONFIG_MODULES /* modprobe exit status on success, -ve on error. Return value * usually useless though. */ extern int request_module(const char * name, ...) __attribute__ ((format (printf, 1, 2))); diff --git a/kernel/exec_domain.c b/kernel/exec_domain.c index a9e6bad9f706..c1ef192aa655 100644 --- a/kernel/exec_domain.c +++ b/kernel/exec_domain.c @@ -65,7 +65,7 @@ lookup_exec_domain(u_long personality) goto out; } -#ifdef CONFIG_KMOD +#ifdef CONFIG_MODULES read_unlock(&exec_domains_lock); request_module("personality-%ld", pers); read_lock(&exec_domains_lock); diff --git a/kernel/kmod.c b/kernel/kmod.c index 8df97d3dfda8..90d7af1c1655 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -42,7 +42,7 @@ extern int max_threads; static struct workqueue_struct *khelper_wq; -#ifdef CONFIG_KMOD +#ifdef CONFIG_MODULES /* modprobe_path is set via /proc/sys. diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 6b16e16428d8..b859e6b5a767 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -110,7 +110,7 @@ static int min_percpu_pagelist_fract = 8; static int ngroups_max = NGROUPS_MAX; -#ifdef CONFIG_KMOD +#ifdef CONFIG_MODULES extern char modprobe_path[]; #endif #ifdef CONFIG_CHR_DEV_SG @@ -475,7 +475,7 @@ static struct ctl_table kern_table[] = { .proc_handler = &ftrace_enable_sysctl, }, #endif -#ifdef CONFIG_KMOD +#ifdef CONFIG_MODULES { .ctl_name = KERN_MODPROBE, .procname = "modprobe", -- cgit v1.2.3 From 651910874633a75f4a726d44e449be0a56b4b2e0 Mon Sep 17 00:00:00 2001 From: John Reiser Date: Mon, 21 Jul 2008 14:21:32 -0700 Subject: execve filename: document and export via auxiliary vector The Linux kernel puts the filename argument of execve() into the new address space. Many developers are surprised to learn this. Those who know and could use it, object "But it's not documented." Those who want to use it dislike the expression (char *)(1+ strlen(env[-1+ n_env]) + env[-1+ n_env]) because it requires locating the last original environment variable, and assumes that the filename follows the characters. This patch documents the insertion of the filename, and makes it easier to find by adding a new tag AT_EXECFN in the ElfXX_auxv_t; see . In many cases readlink("/proc/self/exe",) gives the same answer. But if all the original pages get unmapped, then the kernel erases the symlink for /proc/self/exe. This can happen when a program decompressor does a good job of cleaning up after uncompressing directly to memory, so that the address space of the target program looks the same as if compression had never happened. One example is http://upx.sourceforge.net . One notable use of the underlying concept (what path containED the executable) is glibc expanding $ORIGIN in DT_RUNPATH. In practice for the near term, it may be a good idea for user-mode code to use both /proc/self/exe and AT_EXECFN as fall-back methods for each other. /proc/self/exe can fail due to unmapping, AT_EXECFN can fail because it won't be present on non-new systems. The auxvec or {AT_EXECFN}.d_val also can get overwritten, although in nearly all cases this would be the result of a bug. The runtime cost is one NEW_AUX_ENT using two words of stack space. The underlying value is maintained already as bprm->exec; setup_arg_pages() in fs/exec.c slides it for stack_shift, etc. Signed-off-by: John Reiser Cc: Roland McGrath Cc: Jakub Jelinek Cc: Ulrich Drepper Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/binfmt_elf.c | 1 + include/linux/auxvec.h | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index d48ff5f370f4..639d2d8b5710 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -204,6 +204,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, NEW_AUX_ENT(AT_GID, tsk->gid); NEW_AUX_ENT(AT_EGID, tsk->egid); NEW_AUX_ENT(AT_SECURE, security_bprm_secureexec(bprm)); + NEW_AUX_ENT(AT_EXECFN, bprm->exec); if (k_platform) { NEW_AUX_ENT(AT_PLATFORM, (elf_addr_t)(unsigned long)u_platform); diff --git a/include/linux/auxvec.h b/include/linux/auxvec.h index ad895455ab72..0da17d14fd13 100644 --- a/include/linux/auxvec.h +++ b/include/linux/auxvec.h @@ -26,8 +26,10 @@ #define AT_SECURE 23 /* secure mode boolean */ +#define AT_EXECFN 31 /* filename of program */ #ifdef __KERNEL__ -#define AT_VECTOR_SIZE_BASE (14 + 2) /* NEW_AUX_ENT entries in auxiliary table */ +#define AT_VECTOR_SIZE_BASE 17 /* NEW_AUX_ENT entries in auxiliary table */ + /* number of "#define AT_.*" above, minus {AT_NULL, AT_IGNORE, AT_NOTELF} */ #endif #endif /* _LINUX_AUXVEC_H */ -- cgit v1.2.3 From 0c36ec31473593aa937ff04f3b3b630e81512734 Mon Sep 17 00:00:00 2001 From: Juergen Beisert Date: Mon, 21 Jul 2008 14:21:34 -0700 Subject: gpio: gpio driver for max7301 SPI GPIO expander Maxim's MAX7301 is an SPI GPIO expander with 28 GPIOs. Note: MAX7301's interrupt feature is not supported yet. [akpm@linux-foundation.org: coding-style fixes] [g.liakhovetski@pengutronix.de: Fix inaccuracies in comments, check spi_setup() return code, mask off high byte in max7301_read()] Signed-off-by: Juergen Beisert Signed-off-by: Guennadi Liakhovetski Cc: Russell King Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/Kconfig | 6 + drivers/gpio/Makefile | 1 + drivers/gpio/max7301.c | 339 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/spi/max7301.h | 9 ++ 4 files changed, 355 insertions(+) create mode 100644 drivers/gpio/max7301.c create mode 100644 include/linux/spi/max7301.h (limited to 'include') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 008c38ba774f..9e0c4fbfc51a 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -69,6 +69,12 @@ config GPIO_PCF857X comment "SPI GPIO expanders:" +config GPIO_MAX7301 + tristate "Maxim MAX7301 GPIO expander" + depends on SPI_MASTER + help + gpio driver for Maxim MAX7301 SPI GPIO expander. + config GPIO_MCP23S08 tristate "Microchip MCP23S08 I/O expander" depends on SPI_MASTER diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index fdde9923cf33..16e796dc5410 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -4,6 +4,7 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG obj-$(CONFIG_HAVE_GPIO_LIB) += gpiolib.o +obj-$(CONFIG_GPIO_MAX7301) += max7301.o obj-$(CONFIG_GPIO_MCP23S08) += mcp23s08.o obj-$(CONFIG_GPIO_PCA953X) += pca953x.o obj-$(CONFIG_GPIO_PCF857X) += pcf857x.o diff --git a/drivers/gpio/max7301.c b/drivers/gpio/max7301.c new file mode 100644 index 000000000000..39c795ad8312 --- /dev/null +++ b/drivers/gpio/max7301.c @@ -0,0 +1,339 @@ +/** + * drivers/gpio/max7301.c + * + * Copyright (C) 2006 Juergen Beisert, Pengutronix + * Copyright (C) 2008 Guennadi Liakhovetski, Pengutronix + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * The Maxim's MAX7301 device is an SPI driven GPIO expander. There are + * 28 GPIOs. 8 of them can trigger an interrupt. See datasheet for more + * details + * Note: + * - DIN must be stable at the rising edge of clock. + * - when writing: + * - always clock in 16 clocks at once + * - at DIN: D15 first, D0 last + * - D0..D7 = databyte, D8..D14 = commandbyte + * - D15 = low -> write command + * - when reading + * - always clock in 16 clocks at once + * - at DIN: D15 first, D0 last + * - D0..D7 = dummy, D8..D14 = register address + * - D15 = high -> read command + * - raise CS and assert it again + * - always clock in 16 clocks at once + * - at DOUT: D15 first, D0 last + * - D0..D7 contains the data from the first cycle + * + * The driver exports a standard gpiochip interface + */ + +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "max7301" + +/* + * Pin configurations, see MAX7301 datasheet page 6 + */ +#define PIN_CONFIG_MASK 0x03 +#define PIN_CONFIG_IN_PULLUP 0x03 +#define PIN_CONFIG_IN_WO_PULLUP 0x02 +#define PIN_CONFIG_OUT 0x01 + +#define PIN_NUMBER 28 + + +/* + * Some registers must be read back to modify. + * To save time we cache them here in memory + */ +struct max7301 { + struct mutex lock; + u8 port_config[8]; /* field 0 is unused */ + u32 out_level; /* cached output levels */ + struct gpio_chip chip; + struct spi_device *spi; +}; + +/** + * max7301_write - Write a new register content + * @spi: The SPI device + * @reg: Register offset + * @val: Value to write + * + * A write to the MAX7301 means one message with one transfer + * + * Returns 0 if successful or a negative value on error + */ +static int max7301_write(struct spi_device *spi, unsigned int reg, unsigned int val) +{ + u16 word = ((reg & 0x7F) << 8) | (val & 0xFF); + return spi_write(spi, (const u8 *)&word, sizeof(word)); +} + +/** + * max7301_read - Read back register content + * @spi: The SPI device + * @reg: Register offset + * + * A read from the MAX7301 means two transfers; here, one message each + * + * Returns positive 8 bit value from device if successful or a + * negative value on error + */ +static int max7301_read(struct spi_device *spi, unsigned int reg) +{ + int ret; + u16 word; + + word = 0x8000 | (reg << 8); + ret = spi_write(spi, (const u8 *)&word, sizeof(word)); + if (ret) + return ret; + /* + * This relies on the fact, that a transfer with NULL tx_buf shifts out + * zero bytes (=NOOP for MAX7301) + */ + ret = spi_read(spi, (u8 *)&word, sizeof(word)); + if (ret) + return ret; + return word & 0xff; +} + +static int max7301_direction_input(struct gpio_chip *chip, unsigned offset) +{ + struct max7301 *ts = container_of(chip, struct max7301, chip); + u8 *config; + int ret; + + /* First 4 pins are unused in the controller */ + offset += 4; + + config = &ts->port_config[offset >> 2]; + + mutex_lock(&ts->lock); + + /* Standard GPIO API doesn't support pull-ups, has to be extended. + * Hard-coding no pollup for now. */ + *config = (*config & ~(3 << (offset & 3))) | (1 << (offset & 3)); + + ret = max7301_write(ts->spi, 0x08 + (offset >> 2), *config); + + mutex_unlock(&ts->lock); + + return ret; +} + +static int __max7301_set(struct max7301 *ts, unsigned offset, int value) +{ + if (value) { + ts->out_level |= 1 << offset; + return max7301_write(ts->spi, 0x20 + offset, 0x01); + } else { + ts->out_level &= ~(1 << offset); + return max7301_write(ts->spi, 0x20 + offset, 0x00); + } +} + +static int max7301_direction_output(struct gpio_chip *chip, unsigned offset, + int value) +{ + struct max7301 *ts = container_of(chip, struct max7301, chip); + u8 *config; + int ret; + + /* First 4 pins are unused in the controller */ + offset += 4; + + config = &ts->port_config[offset >> 2]; + + mutex_lock(&ts->lock); + + *config = (*config & ~(3 << (offset & 3))) | (1 << (offset & 3)); + + ret = __max7301_set(ts, offset, value); + + if (!ret) + ret = max7301_write(ts->spi, 0x08 + (offset >> 2), *config); + + mutex_unlock(&ts->lock); + + return ret; +} + +static int max7301_get(struct gpio_chip *chip, unsigned offset) +{ + struct max7301 *ts = container_of(chip, struct max7301, chip); + int config, level = -EINVAL; + + /* First 4 pins are unused in the controller */ + offset += 4; + + mutex_lock(&ts->lock); + + config = (ts->port_config[offset >> 2] >> ((offset & 3) * 2)) & 3; + + switch (config) { + case 1: + /* Output: return cached level */ + level = !!(ts->out_level & (1 << offset)); + break; + case 2: + case 3: + /* Input: read out */ + level = max7301_read(ts->spi, 0x20 + offset) & 0x01; + } + mutex_unlock(&ts->lock); + + return level; +} + +static void max7301_set(struct gpio_chip *chip, unsigned offset, int value) +{ + struct max7301 *ts = container_of(chip, struct max7301, chip); + + /* First 4 pins are unused in the controller */ + offset += 4; + + mutex_lock(&ts->lock); + + __max7301_set(ts, offset, value); + + mutex_unlock(&ts->lock); +} + +static int __devinit max7301_probe(struct spi_device *spi) +{ + struct max7301 *ts; + struct max7301_platform_data *pdata; + int i, ret; + + pdata = spi->dev.platform_data; + if (!pdata || !pdata->base) + return -ENODEV; + + /* + * bits_per_word cannot be configured in platform data + */ + spi->bits_per_word = 16; + + ret = spi_setup(spi); + if (ret < 0) + return ret; + + ts = kzalloc(sizeof(struct max7301), GFP_KERNEL); + if (!ts) + return -ENOMEM; + + mutex_init(&ts->lock); + + dev_set_drvdata(&spi->dev, ts); + + /* Power up the chip and disable IRQ output */ + max7301_write(spi, 0x04, 0x01); + + ts->spi = spi; + + ts->chip.label = DRIVER_NAME, + + ts->chip.direction_input = max7301_direction_input; + ts->chip.get = max7301_get; + ts->chip.direction_output = max7301_direction_output; + ts->chip.set = max7301_set; + + ts->chip.base = pdata->base; + ts->chip.ngpio = PIN_NUMBER; + ts->chip.can_sleep = 1; + ts->chip.dev = &spi->dev; + ts->chip.owner = THIS_MODULE; + + ret = gpiochip_add(&ts->chip); + if (ret) + goto exit_destroy; + + /* + * tristate all pins in hardware and cache the + * register values for later use. + */ + for (i = 1; i < 8; i++) { + int j; + /* 0xAA means input with internal pullup disabled */ + max7301_write(spi, 0x08 + i, 0xAA); + ts->port_config[i] = 0xAA; + for (j = 0; j < 4; j++) { + int idx = ts->chip.base + (i - 1) * 4 + j; + ret = gpio_direction_input(idx); + if (ret) + goto exit_remove; + gpio_free(idx); + } + } + return ret; + +exit_remove: + gpiochip_remove(&ts->chip); +exit_destroy: + dev_set_drvdata(&spi->dev, NULL); + mutex_destroy(&ts->lock); + kfree(ts); + return ret; +} + +static int max7301_remove(struct spi_device *spi) +{ + struct max7301 *ts; + int ret; + + ts = dev_get_drvdata(&spi->dev); + if (ts == NULL) + return -ENODEV; + + dev_set_drvdata(&spi->dev, NULL); + + /* Power down the chip and disable IRQ output */ + max7301_write(spi, 0x04, 0x00); + + ret = gpiochip_remove(&ts->chip); + if (!ret) { + mutex_destroy(&ts->lock); + kfree(ts); + } else + dev_err(&spi->dev, "Failed to remove the GPIO controller: %d\n", + ret); + + return ret; +} + +static struct spi_driver max7301_driver = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, + .probe = max7301_probe, + .remove = __devexit_p(max7301_remove), +}; + +static int __init max7301_init(void) +{ + return spi_register_driver(&max7301_driver); +} + +static void __exit max7301_exit(void) +{ + spi_unregister_driver(&max7301_driver); +} + +module_init(max7301_init); +module_exit(max7301_exit); + +MODULE_AUTHOR("Juergen Beisert"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("MAX7301 SPI based GPIO-Expander"); diff --git a/include/linux/spi/max7301.h b/include/linux/spi/max7301.h new file mode 100644 index 000000000000..6dfd83f19b4b --- /dev/null +++ b/include/linux/spi/max7301.h @@ -0,0 +1,9 @@ +#ifndef LINUX_SPI_MAX7301_H +#define LINUX_SPI_MAX7301_H + +struct max7301_platform_data { + /* number assigned to the first GPIO */ + unsigned base; +}; + +#endif -- cgit v1.2.3 From 95da310e66ee8090119596c70ca8432e57f9a97f Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 22 Jul 2008 11:09:07 +0100 Subject: usb_serial: API all change USB serial likes to use port->tty back pointers for the real work it does and to do so without any actual locking. Unfortunately when you consider hangup events, hangup/parallel reopen or even worse hangup followed by parallel close events the tty->port and port->tty pointers are not guaranteed to be the same as port->tty is the active tty while tty->port is the port the tty may or may not still be attached to. So rework the entire API to pass the tty struct. For console cases we need to pass both for now. This shows up multiple drivers that immediately crash with USB console some of which have been fixed in the process. Longer term we need a proper tty as console abstraction Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- drivers/usb/serial/aircable.c | 19 +- drivers/usb/serial/airprime.c | 355 ++++++++++++++++++++++++++++++++++ drivers/usb/serial/ark3116.c | 32 +-- drivers/usb/serial/belkin_sa.c | 69 +++---- drivers/usb/serial/ch341.c | 10 +- drivers/usb/serial/console.c | 34 ++-- drivers/usb/serial/cp2101.c | 74 +++---- drivers/usb/serial/cyberjack.c | 47 +++-- drivers/usb/serial/cypress_m8.c | 117 ++++++----- drivers/usb/serial/digi_acceleport.c | 127 ++++++------ drivers/usb/serial/empeg.c | 78 +++----- drivers/usb/serial/ftdi_sio.c | 211 ++++++++++---------- drivers/usb/serial/garmin_gps.c | 58 ++---- drivers/usb/serial/generic.c | 39 ++-- drivers/usb/serial/io_edgeport.c | 175 ++++++----------- drivers/usb/serial/io_ti.c | 109 ++++++----- drivers/usb/serial/ipaq.c | 48 +++-- drivers/usb/serial/ipw.c | 15 +- drivers/usb/serial/ir-usb.c | 81 ++++---- drivers/usb/serial/iuu_phoenix.c | 43 ++-- drivers/usb/serial/keyspan.c | 138 ++++++------- drivers/usb/serial/keyspan.h | 39 ++-- drivers/usb/serial/keyspan_pda.c | 69 +++---- drivers/usb/serial/kl5kusb105.c | 74 ++++--- drivers/usb/serial/kobil_sct.c | 80 ++++---- drivers/usb/serial/mct_u232.c | 121 +++++------- drivers/usb/serial/mos7720.c | 87 ++++----- drivers/usb/serial/mos7840.c | 165 +++++++--------- drivers/usb/serial/navman.c | 10 +- drivers/usb/serial/omninet.c | 26 +-- drivers/usb/serial/option.c | 105 ++++------ drivers/usb/serial/oti6858.c | 119 +++++------- drivers/usb/serial/pl2303.c | 76 ++++---- drivers/usb/serial/safe_serial.c | 14 +- drivers/usb/serial/sierra.c | 93 +++------ drivers/usb/serial/spcp8x5.c | 69 ++++--- drivers/usb/serial/ti_usb_3410_5052.c | 203 ++++++++++--------- drivers/usb/serial/usb-serial.c | 82 ++++---- drivers/usb/serial/usb_debug.c | 5 +- drivers/usb/serial/visor.c | 66 ++----- drivers/usb/serial/whiteheat.c | 102 +++++----- include/linux/usb/serial.h | 56 +++--- 42 files changed, 1820 insertions(+), 1720 deletions(-) create mode 100644 drivers/usb/serial/airprime.c (limited to 'include') diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index db6f97a93c02..79ea98c66fa8 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -272,7 +272,7 @@ static void aircable_read(struct work_struct *work) * 64 bytes, to ensure I do not get throttled. * Ask USB mailing list for better aproach. */ - tty = port->tty; + tty = port->port.tty; if (!tty) { schedule_work(&priv->rx_work); @@ -378,13 +378,14 @@ static void aircable_shutdown(struct usb_serial *serial) } } -static int aircable_write_room(struct usb_serial_port *port) +static int aircable_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct aircable_private *priv = usb_get_serial_port_data(port); return serial_buf_data_avail(priv->tx_buf); } -static int aircable_write(struct usb_serial_port *port, +static int aircable_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *source, int count) { struct aircable_private *priv = usb_get_serial_port_data(port); @@ -466,7 +467,7 @@ static void aircable_read_bulk_callback(struct urb *urb) if (status) { dbg("%s - urb status = %d", __func__, status); - if (!port->open_count) { + if (!port->port.count) { dbg("%s - port is closed, exiting.", __func__); return; } @@ -494,7 +495,7 @@ static void aircable_read_bulk_callback(struct urb *urb) usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, urb->transfer_buffer); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { if (urb->actual_length <= 2) { /* This is an incomplete package */ @@ -528,7 +529,7 @@ static void aircable_read_bulk_callback(struct urb *urb) } /* Schedule the next read _if_ we are still open */ - if (port->open_count) { + if (port->port.count) { usb_fill_bulk_urb(port->read_urb, port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), @@ -547,8 +548,9 @@ static void aircable_read_bulk_callback(struct urb *urb) } /* Based on ftdi_sio.c throttle */ -static void aircable_throttle(struct usb_serial_port *port) +static void aircable_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct aircable_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -560,8 +562,9 @@ static void aircable_throttle(struct usb_serial_port *port) } /* Based on ftdi_sio.c unthrottle */ -static void aircable_unthrottle(struct usb_serial_port *port) +static void aircable_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct aircable_private *priv = usb_get_serial_port_data(port); int actually_throttled; unsigned long flags; diff --git a/drivers/usb/serial/airprime.c b/drivers/usb/serial/airprime.c new file mode 100644 index 000000000000..b3f1d1e82468 --- /dev/null +++ b/drivers/usb/serial/airprime.c @@ -0,0 +1,355 @@ +/* + * AirPrime CDMA Wireless Serial USB driver + * + * Copyright (C) 2005-2006 Greg Kroah-Hartman + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include + +static struct usb_device_id id_table [] = { + { USB_DEVICE(0x0c88, 0x17da) }, /* Kyocera Wireless KPC650/Passport */ + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + +#define URB_TRANSFER_BUFFER_SIZE 4096 +#define NUM_READ_URBS 4 +#define NUM_WRITE_URBS 4 +#define NUM_BULK_EPS 3 +#define MAX_BULK_EPS 6 + +/* if overridden by the user, then use their value for the size of the + * read and write urbs, and the number of endpoints */ +static int buffer_size = URB_TRANSFER_BUFFER_SIZE; +static int endpoints = NUM_BULK_EPS; +static int debug; +struct airprime_private { + spinlock_t lock; + int outstanding_urbs; + int throttled; + struct urb *read_urbp[NUM_READ_URBS]; + + /* Settings for the port */ + int rts_state; /* Handshaking pins (outputs) */ + int dtr_state; + int cts_state; /* Handshaking pins (inputs) */ + int dsr_state; + int dcd_state; + int ri_state; +}; + +static int airprime_send_setup(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + struct airprime_private *priv; + + dbg("%s", __func__); + + if (port->number != 0) + return 0; + + priv = usb_get_serial_port_data(port); + + if (port->port.tty) { + int val = 0; + if (priv->dtr_state) + val |= 0x01; + if (priv->rts_state) + val |= 0x02; + + return usb_control_msg(serial->dev, + usb_rcvctrlpipe(serial->dev, 0), + 0x22, 0x21, val, 0, NULL, 0, + USB_CTRL_SET_TIMEOUT); + } + + return 0; +} + +static void airprime_read_bulk_callback(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + unsigned char *data = urb->transfer_buffer; + struct tty_struct *tty; + int result; + int status = urb->status; + + dbg("%s - port %d", __func__, port->number); + + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __func__, status); + return; + } + usb_serial_debug_data(debug, &port->dev, __func__, + urb->actual_length, data); + + tty = port->port.tty; + if (tty && urb->actual_length) { + tty_insert_flip_string(tty, data, urb->actual_length); + tty_flip_buffer_push(tty); + } + + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result) + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); + return; +} + +static void airprime_write_bulk_callback(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + struct airprime_private *priv = usb_get_serial_port_data(port); + int status = urb->status; + unsigned long flags; + + dbg("%s - port %d", __func__, port->number); + + /* free up the transfer buffer, as usb_free_urb() does not do this */ + kfree(urb->transfer_buffer); + + if (status) + dbg("%s - nonzero write bulk status received: %d", + __func__, status); + spin_lock_irqsave(&priv->lock, flags); + --priv->outstanding_urbs; + spin_unlock_irqrestore(&priv->lock, flags); + + usb_serial_port_softint(port); +} + +static int airprime_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) +{ + struct airprime_private *priv = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + struct urb *urb; + char *buffer = NULL; + int i; + int result = 0; + + dbg("%s - port %d", __func__, port->number); + + /* initialize our private data structure if it isn't already created */ + if (!priv) { + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + result = -ENOMEM; + goto out; + } + spin_lock_init(&priv->lock); + usb_set_serial_port_data(port, priv); + } + + /* Set some sane defaults */ + priv->rts_state = 1; + priv->dtr_state = 1; + + for (i = 0; i < NUM_READ_URBS; ++i) { + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!buffer) { + dev_err(&port->dev, "%s - out of memory.\n", + __func__); + result = -ENOMEM; + goto errout; + } + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + kfree(buffer); + dev_err(&port->dev, "%s - no more urbs?\n", + __func__); + result = -ENOMEM; + goto errout; + } + usb_fill_bulk_urb(urb, serial->dev, + usb_rcvbulkpipe(serial->dev, + port->bulk_out_endpointAddress), + buffer, buffer_size, + airprime_read_bulk_callback, port); + result = usb_submit_urb(urb, GFP_KERNEL); + if (result) { + usb_free_urb(urb); + kfree(buffer); + dev_err(&port->dev, + "%s - failed submitting read urb %d for port %d, error %d\n", + __func__, i, port->number, result); + goto errout; + } + /* remember this urb so we can kill it when the + port is closed */ + priv->read_urbp[i] = urb; + } + + airprime_send_setup(port); + + goto out; + + errout: + /* some error happened, cancel any submitted urbs and clean up + anything that got allocated successfully */ + + while (i-- != 0) { + urb = priv->read_urbp[i]; + buffer = urb->transfer_buffer; + usb_kill_urb(urb); + usb_free_urb(urb); + kfree(buffer); + } + + out: + return result; +} + +static void airprime_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) +{ + struct airprime_private *priv = usb_get_serial_port_data(port); + int i; + + dbg("%s - port %d", __func__, port->number); + + priv->rts_state = 0; + priv->dtr_state = 0; + + mutex_lock(&port->serial->disc_mutex); + if (!port->serial->disconnected) + airprime_send_setup(port); + mutex_unlock(&port->serial->disc_mutex); + + for (i = 0; i < NUM_READ_URBS; ++i) { + usb_kill_urb(priv->read_urbp[i]); + kfree(priv->read_urbp[i]->transfer_buffer); + usb_free_urb(priv->read_urbp[i]); + } + + /* free up private structure */ + kfree(priv); + usb_set_serial_port_data(port, NULL); +} + +static int airprime_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) +{ + struct airprime_private *priv = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + struct urb *urb; + unsigned char *buffer; + unsigned long flags; + int status; + dbg("%s - port %d", __func__, port->number); + + spin_lock_irqsave(&priv->lock, flags); + if (priv->outstanding_urbs > NUM_WRITE_URBS) { + spin_unlock_irqrestore(&priv->lock, flags); + dbg("%s - write limit hit\n", __func__); + return 0; + } + spin_unlock_irqrestore(&priv->lock, flags); + buffer = kmalloc(count, GFP_ATOMIC); + if (!buffer) { + dev_err(&port->dev, "out of memory\n"); + return -ENOMEM; + } + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) { + dev_err(&port->dev, "no more free urbs\n"); + kfree(buffer); + return -ENOMEM; + } + memcpy(buffer, buf, count); + + usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); + + usb_fill_bulk_urb(urb, serial->dev, + usb_sndbulkpipe(serial->dev, + port->bulk_out_endpointAddress), + buffer, count, + airprime_write_bulk_callback, port); + + /* send it down the pipe */ + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status) { + dev_err(&port->dev, + "%s - usb_submit_urb(write bulk) failed with status = %d\n", + __func__, status); + count = status; + kfree(buffer); + } else { + spin_lock_irqsave(&priv->lock, flags); + ++priv->outstanding_urbs; + spin_unlock_irqrestore(&priv->lock, flags); + } + /* we are done with this urb, so let the host driver + * really free it when it is finished with it */ + usb_free_urb(urb); + return count; +} + +static struct usb_driver airprime_driver = { + .name = "airprime", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, + .no_dynamic_id = 1, +}; + +static struct usb_serial_driver airprime_device = { + .driver = { + .owner = THIS_MODULE, + .name = "airprime", + }, + .usb_driver = &airprime_driver, + .id_table = id_table, + .open = airprime_open, + .close = airprime_close, + .write = airprime_write, +}; + +static int __init airprime_init(void) +{ + int retval; + + airprime_device.num_ports = endpoints; + if (endpoints < 0 || endpoints >= MAX_BULK_EPS) + airprime_device.num_ports = NUM_BULK_EPS; + + retval = usb_serial_register(&airprime_device); + if (retval) + return retval; + retval = usb_register(&airprime_driver); + if (retval) + usb_serial_deregister(&airprime_device); + return retval; +} + +static void __exit airprime_exit(void) +{ + dbg("%s", __func__); + + usb_deregister(&airprime_driver); + usb_serial_deregister(&airprime_device); +} + +module_init(airprime_init); +module_exit(airprime_exit); +MODULE_LICENSE("GPL"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled"); +module_param(buffer_size, int, 0); +MODULE_PARM_DESC(buffer_size, + "Size of the transfer buffers in bytes (default 4096)"); +module_param(endpoints, int, 0); +MODULE_PARM_DESC(endpoints, "Number of bulk EPs to configure (default 3)"); diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index 77895c8f8f31..aec61880f36c 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -158,12 +158,13 @@ cleanup: return -ENOMEM; } -static void ark3116_set_termios(struct usb_serial_port *port, +static void ark3116_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct usb_serial *serial = port->serial; struct ark3116_private *priv = usb_get_serial_port_data(port); - struct ktermios *termios = port->tty->termios; + struct ktermios *termios = tty->termios; unsigned int cflag = termios->c_cflag; unsigned long flags; int baud; @@ -177,8 +178,8 @@ static void ark3116_set_termios(struct usb_serial_port *port, spin_lock_irqsave(&priv->lock, flags); if (!priv->termios_initialized) { - *(port->tty->termios) = tty_std_termios; - port->tty->termios->c_cflag = B9600 | CS8 + *termios = tty_std_termios; + termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; termios->c_ispeed = 9600; termios->c_ospeed = 9600; @@ -192,7 +193,7 @@ static void ark3116_set_termios(struct usb_serial_port *port, buf = kmalloc(1, GFP_KERNEL); if (!buf) { dbg("error kmalloc"); - *port->tty->termios = *old_termios; + *termios = *old_termios; return; } @@ -243,7 +244,7 @@ static void ark3116_set_termios(struct usb_serial_port *port, } /* set baudrate */ - baud = tty_get_baud_rate(port->tty); + baud = tty_get_baud_rate(tty); switch (baud) { case 75: @@ -262,11 +263,11 @@ static void ark3116_set_termios(struct usb_serial_port *port, case 230400: case 460800: /* Report the resulting rate back to the caller */ - tty_encode_baud_rate(port->tty, baud, baud); + tty_encode_baud_rate(tty, baud, baud); break; /* set 9600 as default (if given baudrate is invalid for example) */ default: - tty_encode_baud_rate(port->tty, 9600, 9600); + tty_encode_baud_rate(tty, 9600, 9600); case 0: baud = 9600; } @@ -317,7 +318,8 @@ static void ark3116_set_termios(struct usb_serial_port *port, return; } -static int ark3116_open(struct usb_serial_port *port, struct file *filp) +static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) { struct ktermios tmp_termios; struct usb_serial *serial = port->serial; @@ -332,7 +334,7 @@ static int ark3116_open(struct usb_serial_port *port, struct file *filp) return -ENOMEM; } - result = usb_serial_generic_open(port, filp); + result = usb_serial_generic_open(tty, port, filp); if (result) goto err_out; @@ -362,8 +364,8 @@ static int ark3116_open(struct usb_serial_port *port, struct file *filp) ARK3116_RCV(serial, 124, 0xFE, 0xC0, 0x0000, 0x0006, 0xFF, buf); /* initialise termios */ - if (port->tty) - ark3116_set_termios(port, &tmp_termios); + if (tty) + ark3116_set_termios(tty, port, &tmp_termios); err_out: kfree(buf); @@ -371,9 +373,10 @@ err_out: return result; } -static int ark3116_ioctl(struct usb_serial_port *port, struct file *file, +static int ark3116_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct serial_struct serstruct; void __user *user_arg = (void __user *)arg; @@ -403,8 +406,9 @@ static int ark3116_ioctl(struct usb_serial_port *port, struct file *file, return -ENOIOCTLCMD; } -static int ark3116_tiocmget(struct usb_serial_port *port, struct file *file) +static int ark3116_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; char *buf; char temp; diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index 0a322fc53d6e..1a762692c739 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -89,14 +89,13 @@ static int debug; /* function prototypes for a Belkin USB Serial Adapter F5U103 */ static int belkin_sa_startup (struct usb_serial *serial); static void belkin_sa_shutdown (struct usb_serial *serial); -static int belkin_sa_open (struct usb_serial_port *port, struct file *filp); -static void belkin_sa_close (struct usb_serial_port *port, struct file *filp); +static int belkin_sa_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void belkin_sa_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); static void belkin_sa_read_int_callback (struct urb *urb); -static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios * old); -static int belkin_sa_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg); -static void belkin_sa_break_ctl (struct usb_serial_port *port, int break_state ); -static int belkin_sa_tiocmget (struct usb_serial_port *port, struct file *file); -static int belkin_sa_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear); +static void belkin_sa_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old); +static void belkin_sa_break_ctl (struct tty_struct *tty, int break_state ); +static int belkin_sa_tiocmget (struct tty_struct *tty, struct file *file); +static int belkin_sa_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); static struct usb_device_id id_table_combined [] = { @@ -132,7 +131,6 @@ static struct usb_serial_driver belkin_device = { .open = belkin_sa_open, .close = belkin_sa_close, .read_int_callback = belkin_sa_read_int_callback, /* How we get the status info */ - .ioctl = belkin_sa_ioctl, .set_termios = belkin_sa_set_termios, .break_ctl = belkin_sa_break_ctl, .tiocmget = belkin_sa_tiocmget, @@ -190,7 +188,7 @@ static int belkin_sa_startup (struct usb_serial *serial) } -static void belkin_sa_shutdown (struct usb_serial *serial) +static void belkin_sa_shutdown(struct usb_serial *serial) { struct belkin_sa_private *priv; int i; @@ -206,7 +204,7 @@ static void belkin_sa_shutdown (struct usb_serial *serial) } -static int belkin_sa_open (struct usb_serial_port *port, struct file *filp) +static int belkin_sa_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) { int retval = 0; @@ -235,7 +233,8 @@ exit: } /* belkin_sa_open */ -static void belkin_sa_close (struct usb_serial_port *port, struct file *filp) +static void belkin_sa_close (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { dbg("%s port %d", __func__, port->number); @@ -246,7 +245,7 @@ static void belkin_sa_close (struct usb_serial_port *port, struct file *filp) } /* belkin_sa_close */ -static void belkin_sa_read_int_callback (struct urb *urb) +static void belkin_sa_read_int_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct belkin_sa_private *priv; @@ -311,7 +310,7 @@ static void belkin_sa_read_int_callback (struct urb *urb) * to look in to this before committing any code. */ if (priv->last_lsr & BELKIN_SA_LSR_ERR) { - tty = port->tty; + tty = port->port.tty; /* Overrun Error */ if (priv->last_lsr & BELKIN_SA_LSR_OE) { } @@ -334,7 +333,8 @@ exit: __func__, retval); } -static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void belkin_sa_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct usb_serial *serial = port->serial; struct belkin_sa_private *priv = usb_get_serial_port_data(port); @@ -347,7 +347,7 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios unsigned long control_state; int bad_flow_control; speed_t baud; - struct ktermios *termios = port->tty->termios; + struct ktermios *termios = tty->termios; iflag = termios->c_iflag; cflag = termios->c_cflag; @@ -377,7 +377,7 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios } } - baud = tty_get_baud_rate(port->tty); + baud = tty_get_baud_rate(tty); if (baud) { urb_value = BELKIN_SA_BAUD(baud); /* Clip to maximum speed */ @@ -387,7 +387,7 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios baud = BELKIN_SA_BAUD(urb_value); /* Report the actual baud rate back to the caller */ - tty_encode_baud_rate(port->tty, baud, baud); + tty_encode_baud_rate(tty, baud, baud); if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0) err("Set baudrate error"); } else { @@ -463,8 +463,9 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios } /* belkin_sa_set_termios */ -static void belkin_sa_break_ctl( struct usb_serial_port *port, int break_state ) +static void belkin_sa_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; if (BSA_USB_CMD(BELKIN_SA_SET_BREAK_REQUEST, break_state ? 1 : 0) < 0) @@ -472,8 +473,9 @@ static void belkin_sa_break_ctl( struct usb_serial_port *port, int break_state ) } -static int belkin_sa_tiocmget (struct usb_serial_port *port, struct file *file) +static int belkin_sa_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct belkin_sa_private *priv = usb_get_serial_port_data(port); unsigned long control_state; unsigned long flags; @@ -488,9 +490,10 @@ static int belkin_sa_tiocmget (struct usb_serial_port *port, struct file *file) } -static int belkin_sa_tiocmset (struct usb_serial_port *port, struct file *file, +static int belkin_sa_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; struct belkin_sa_private *priv = usb_get_serial_port_data(port); unsigned long control_state; @@ -540,29 +543,7 @@ exit: } -static int belkin_sa_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) -{ - switch (cmd) { - case TIOCMIWAIT: - /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ - /* TODO */ - return( 0 ); - - case TIOCGICOUNT: - /* return count of modemline transitions */ - /* TODO */ - return 0; - - default: - dbg("belkin_sa_ioctl arg not supported - 0x%04x",cmd); - return(-ENOIOCTLCMD); - break; - } - return 0; -} /* belkin_sa_ioctl */ - - -static int __init belkin_sa_init (void) +static int __init belkin_sa_init(void) { int retval; retval = usb_serial_register(&belkin_device); @@ -583,7 +564,7 @@ failed_usb_serial_register: static void __exit belkin_sa_exit (void) { usb_deregister (&belkin_driver); - usb_serial_deregister (&belkin_device); + usb_serial_deregister(&belkin_device); } diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index 1f7c86bd8297..f61e3ca64305 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -232,7 +232,8 @@ error: kfree(priv); } /* open this device, set default parameters */ -static int ch341_open(struct usb_serial_port *port, struct file *filp) +static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) { struct usb_serial *serial = port->serial; struct ch341_private *priv = usb_get_serial_port_data(serial->port[0]); @@ -256,7 +257,7 @@ static int ch341_open(struct usb_serial_port *port, struct file *filp) if (r) goto out; - r = usb_serial_generic_open(port, filp); + r = usb_serial_generic_open(tty, port, filp); out: return r; } @@ -264,11 +265,10 @@ out: return r; /* Old_termios contains the original termios settings and * tty->termios contains the new setting to be used. */ -static void ch341_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void ch341_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct ch341_private *priv = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; unsigned baud_rate; dbg("ch341_set_termios()"); diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index 201184c3fb87..940f5de68980 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -145,12 +145,12 @@ static int usb_console_setup(struct console *co, char *options) } port = serial->port[0]; - port->tty = NULL; + port->port.tty = NULL; info->port = port; - ++port->open_count; - if (port->open_count == 1) { + ++port->port.count; + if (port->port.count == 1) { if (serial->type->set_termios) { /* * allocate a fake tty so the driver can initialize @@ -171,15 +171,15 @@ static int usb_console_setup(struct console *co, char *options) } memset(&dummy, 0, sizeof(struct ktermios)); tty->termios = termios; - port->tty = tty; + port->port.tty = tty; } /* only call the device specific open if this * is the first time the port is opened */ if (serial->type->open) - retval = serial->type->open(port, NULL); + retval = serial->type->open(NULL, port, NULL); else - retval = usb_serial_generic_open(port, NULL); + retval = usb_serial_generic_open(NULL, port, NULL); if (retval) { err("could not open USB console port"); @@ -188,9 +188,9 @@ static int usb_console_setup(struct console *co, char *options) if (serial->type->set_termios) { termios->c_cflag = cflag; - serial->type->set_termios(port, &dummy); + serial->type->set_termios(NULL, port, &dummy); - port->tty = NULL; + port->port.tty = NULL; kfree(termios); kfree(tty); } @@ -203,11 +203,11 @@ out: return retval; free_termios: kfree(termios); - port->tty = NULL; + port->port.tty = NULL; free_tty: kfree(tty); reset_open_count: - port->open_count = 0; + port->port.count = 0; goto out; } @@ -227,7 +227,7 @@ static void usb_console_write(struct console *co, const char *buf, unsigned coun dbg("%s - port %d, %d byte(s)", __func__, port->number, count); - if (!port->open_count) { + if (!port->port.count) { dbg ("%s - port not opened", __func__); return; } @@ -245,17 +245,17 @@ static void usb_console_write(struct console *co, const char *buf, unsigned coun } /* pass on to the driver specific version of this function if it is available */ if (serial->type->write) - retval = serial->type->write(port, buf, i); + retval = serial->type->write(NULL, port, buf, i); else - retval = usb_serial_generic_write(port, buf, i); + retval = usb_serial_generic_write(NULL, port, buf, i); dbg("%s - return value : %d", __func__, retval); if (lf) { /* append CR after LF */ unsigned char cr = 13; if (serial->type->write) - retval = serial->type->write(port, &cr, 1); + retval = serial->type->write(NULL, port, &cr, 1); else - retval = usb_serial_generic_write(port, &cr, 1); + retval = usb_serial_generic_write(NULL, port, &cr, 1); dbg("%s - return value : %d", __func__, retval); } buf += i; @@ -306,8 +306,8 @@ void usb_serial_console_exit (void) { if (usbcons_info.port) { unregister_console(&usbcons); - if (usbcons_info.port->open_count) - usbcons_info.port->open_count--; + if (usbcons_info.port->port.count) + usbcons_info.port->port.count--; usbcons_info.port = NULL; } } diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c index 2bc5576c443a..46c33fc9f6ce 100644 --- a/drivers/usb/serial/cp2101.c +++ b/drivers/usb/serial/cp2101.c @@ -37,15 +37,18 @@ /* * Function Prototypes */ -static int cp2101_open(struct usb_serial_port*, struct file*); -static void cp2101_cleanup(struct usb_serial_port*); -static void cp2101_close(struct usb_serial_port*, struct file*); -static void cp2101_get_termios(struct usb_serial_port*); -static void cp2101_set_termios(struct usb_serial_port*, struct ktermios*); -static int cp2101_tiocmget (struct usb_serial_port *, struct file *); -static int cp2101_tiocmset (struct usb_serial_port *, struct file *, +static int cp2101_open(struct tty_struct *, struct usb_serial_port *, + struct file *); +static void cp2101_cleanup(struct usb_serial_port *); +static void cp2101_close(struct tty_struct *, struct usb_serial_port *, + struct file*); +static void cp2101_get_termios(struct tty_struct *); +static void cp2101_set_termios(struct tty_struct *, struct usb_serial_port *, + struct ktermios*); +static int cp2101_tiocmget (struct tty_struct *, struct file *); +static int cp2101_tiocmset (struct tty_struct *, struct file *, unsigned int, unsigned int); -static void cp2101_break_ctl(struct usb_serial_port*, int); +static void cp2101_break_ctl(struct tty_struct *, int); static int cp2101_startup (struct usb_serial *); static void cp2101_shutdown(struct usb_serial*); @@ -182,7 +185,7 @@ static struct usb_serial_driver cp2101_device = { * 'data' is a pointer to a pre-allocated array of integers large * enough to hold 'size' bytes (with 4 bytes to each integer) */ -static int cp2101_get_config(struct usb_serial_port* port, u8 request, +static int cp2101_get_config(struct usb_serial_port *port, u8 request, unsigned int *data, int size) { struct usb_serial *serial = port->serial; @@ -228,7 +231,7 @@ static int cp2101_get_config(struct usb_serial_port* port, u8 request, * Values less than 16 bits wide are sent directly * 'size' is specified in bytes. */ -static int cp2101_set_config(struct usb_serial_port* port, u8 request, +static int cp2101_set_config(struct usb_serial_port *port, u8 request, unsigned int *data, int size) { struct usb_serial *serial = port->serial; @@ -283,13 +286,14 @@ static int cp2101_set_config(struct usb_serial_port* port, u8 request, * Convenience function for calling cp2101_set_config on single data values * without requiring an integer pointer */ -static inline int cp2101_set_config_single(struct usb_serial_port* port, +static inline int cp2101_set_config_single(struct usb_serial_port *port, u8 request, unsigned int data) { return cp2101_set_config(port, request, &data, 2); } -static int cp2101_open (struct usb_serial_port *port, struct file *filp) +static int cp2101_open (struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) { struct usb_serial *serial = port->serial; int result; @@ -318,10 +322,10 @@ static int cp2101_open (struct usb_serial_port *port, struct file *filp) } /* Configure the termios structure */ - cp2101_get_termios(port); + cp2101_get_termios(tty); /* Set the DTR and RTS pins low */ - cp2101_tiocmset(port, NULL, TIOCM_DTR | TIOCM_RTS, 0); + cp2101_tiocmset(tty, NULL, TIOCM_DTR | TIOCM_RTS, 0); return 0; } @@ -341,7 +345,8 @@ static void cp2101_cleanup (struct usb_serial_port *port) } } -static void cp2101_close (struct usb_serial_port *port, struct file * filp) +static void cp2101_close(struct tty_struct *tty, struct usb_serial_port *port, + struct file * filp) { dbg("%s - port %d", __func__, port->number); @@ -362,19 +367,15 @@ static void cp2101_close (struct usb_serial_port *port, struct file * filp) * from the device, corrects any unsupported values, and configures the * termios structure to reflect the state of the device */ -static void cp2101_get_termios (struct usb_serial_port *port) +static void cp2101_get_termios (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; unsigned int cflag, modem_ctl[4]; unsigned int baud; unsigned int bits; dbg("%s - port %d", __func__, port->number); - if (!port->tty || !port->tty->termios) { - dbg("%s - no tty structures", __func__); - return; - } - cp2101_get_config(port, CP2101_BAUDRATE, &baud, 2); /* Convert to baudrate */ if (baud) @@ -382,8 +383,8 @@ static void cp2101_get_termios (struct usb_serial_port *port) dbg("%s - baud rate = %d", __func__, baud); - tty_encode_baud_rate(port->tty, baud, baud); - cflag = port->tty->termios->c_cflag; + tty_encode_baud_rate(tty, baud, baud); + cflag = tty->termios->c_cflag; cp2101_get_config(port, CP2101_BITS, &bits, 2); cflag &= ~CSIZE; @@ -491,11 +492,11 @@ static void cp2101_get_termios (struct usb_serial_port *port) cflag &= ~CRTSCTS; } - port->tty->termios->c_cflag = cflag; + tty->termios->c_cflag = cflag; } -static void cp2101_set_termios (struct usb_serial_port *port, - struct ktermios *old_termios) +static void cp2101_set_termios (struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { unsigned int cflag, old_cflag; unsigned int baud = 0, bits; @@ -503,15 +504,13 @@ static void cp2101_set_termios (struct usb_serial_port *port, dbg("%s - port %d", __func__, port->number); - if (!port->tty || !port->tty->termios) { - dbg("%s - no tty structures", __func__); + if (!tty) return; - } - port->tty->termios->c_cflag &= ~CMSPAR; - cflag = port->tty->termios->c_cflag; + tty->termios->c_cflag &= ~CMSPAR; + cflag = tty->termios->c_cflag; old_cflag = old_termios->c_cflag; - baud = tty_get_baud_rate(port->tty); + baud = tty_get_baud_rate(tty); /* If the baud rate is to be updated*/ if (baud != tty_termios_baud_rate(old_termios)) { @@ -554,7 +553,7 @@ static void cp2101_set_termios (struct usb_serial_port *port, } } /* Report back the resulting baud rate */ - tty_encode_baud_rate(port->tty, baud, baud); + tty_encode_baud_rate(tty, baud, baud); /* If the number of data bits is to be updated */ if ((cflag & CSIZE) != (old_cflag & CSIZE)) { @@ -651,9 +650,10 @@ static void cp2101_set_termios (struct usb_serial_port *port, } -static int cp2101_tiocmset (struct usb_serial_port *port, struct file *file, +static int cp2101_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; unsigned int control = 0; dbg("%s - port %d", __func__, port->number); @@ -681,8 +681,9 @@ static int cp2101_tiocmset (struct usb_serial_port *port, struct file *file, } -static int cp2101_tiocmget (struct usb_serial_port *port, struct file *file) +static int cp2101_tiocmget (struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; unsigned int control; int result; @@ -702,8 +703,9 @@ static int cp2101_tiocmget (struct usb_serial_port *port, struct file *file) return result; } -static void cp2101_break_ctl (struct usb_serial_port *port, int break_state) +static void cp2101_break_ctl (struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; unsigned int state; dbg("%s - port %d", __func__, port->number); diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index c164e2cf2752..546178ea6f2d 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -57,15 +57,18 @@ static int debug; #define CYBERJACK_PRODUCT_ID 0x0100 /* Function prototypes */ -static int cyberjack_startup (struct usb_serial *serial); -static void cyberjack_shutdown (struct usb_serial *serial); -static int cyberjack_open (struct usb_serial_port *port, struct file *filp); -static void cyberjack_close (struct usb_serial_port *port, struct file *filp); -static int cyberjack_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static int cyberjack_write_room( struct usb_serial_port *port ); -static void cyberjack_read_int_callback (struct urb *urb); -static void cyberjack_read_bulk_callback (struct urb *urb); -static void cyberjack_write_bulk_callback (struct urb *urb); +static int cyberjack_startup(struct usb_serial *serial); +static void cyberjack_shutdown(struct usb_serial *serial); +static int cyberjack_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static void cyberjack_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static int cyberjack_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count); +static int cyberjack_write_room( struct tty_struct *tty); +static void cyberjack_read_int_callback(struct urb *urb); +static void cyberjack_read_bulk_callback(struct urb *urb); +static void cyberjack_write_bulk_callback(struct urb *urb); static struct usb_device_id id_table [] = { { USB_DEVICE(CYBERJACK_VENDOR_ID, CYBERJACK_PRODUCT_ID) }, @@ -111,7 +114,7 @@ struct cyberjack_private { }; /* do some startup allocations not currently performed by usb_serial_probe() */ -static int cyberjack_startup (struct usb_serial *serial) +static int cyberjack_startup(struct usb_serial *serial) { struct cyberjack_private *priv; int i; @@ -145,7 +148,7 @@ static int cyberjack_startup (struct usb_serial *serial) return( 0 ); } -static void cyberjack_shutdown (struct usb_serial *serial) +static void cyberjack_shutdown(struct usb_serial *serial) { int i; @@ -159,7 +162,8 @@ static void cyberjack_shutdown (struct usb_serial *serial) } } -static int cyberjack_open (struct usb_serial_port *port, struct file *filp) +static int cyberjack_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct cyberjack_private *priv; unsigned long flags; @@ -174,7 +178,8 @@ static int cyberjack_open (struct usb_serial_port *port, struct file *filp) * the data through, otherwise it is scheduled, and with high * data rates (like with OHCI) data can get lost. */ - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; priv = usb_get_serial_port_data(port); spin_lock_irqsave(&priv->lock, flags); @@ -186,7 +191,8 @@ static int cyberjack_open (struct usb_serial_port *port, struct file *filp) return result; } -static void cyberjack_close (struct usb_serial_port *port, struct file *filp) +static void cyberjack_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { dbg("%s - port %d", __func__, port->number); @@ -197,7 +203,8 @@ static void cyberjack_close (struct usb_serial_port *port, struct file *filp) } } -static int cyberjack_write (struct usb_serial_port *port, const unsigned char *buf, int count) +static int cyberjack_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count) { struct usb_serial *serial = port->serial; struct cyberjack_private *priv = usb_get_serial_port_data(port); @@ -292,13 +299,13 @@ static int cyberjack_write (struct usb_serial_port *port, const unsigned char *b return (count); } -static int cyberjack_write_room( struct usb_serial_port *port ) +static int cyberjack_write_room(struct tty_struct *tty) { /* FIXME: .... */ return CYBERJACK_LOCAL_BUF_SIZE; } -static void cyberjack_read_int_callback( struct urb *urb ) +static void cyberjack_read_int_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct cyberjack_private *priv = usb_get_serial_port_data(port); @@ -355,7 +362,7 @@ resubmit: dbg("%s - usb_submit_urb(int urb)", __func__); } -static void cyberjack_read_bulk_callback (struct urb *urb) +static void cyberjack_read_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct cyberjack_private *priv = usb_get_serial_port_data(port); @@ -374,7 +381,7 @@ static void cyberjack_read_bulk_callback (struct urb *urb) return; } - tty = port->tty; + tty = port->port.tty; if (!tty) { dbg("%s - ignoring since device not open\n", __func__); return; @@ -407,7 +414,7 @@ static void cyberjack_read_bulk_callback (struct urb *urb) } } -static void cyberjack_write_bulk_callback (struct urb *urb) +static void cyberjack_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct cyberjack_private *priv = usb_get_serial_port_data(port); diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 0230d3c0888a..6999d3372d85 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -167,18 +167,18 @@ static int cypress_earthmate_startup (struct usb_serial *serial); static int cypress_hidcom_startup (struct usb_serial *serial); static int cypress_ca42v2_startup (struct usb_serial *serial); static void cypress_shutdown (struct usb_serial *serial); -static int cypress_open (struct usb_serial_port *port, struct file *filp); -static void cypress_close (struct usb_serial_port *port, struct file *filp); -static int cypress_write (struct usb_serial_port *port, const unsigned char *buf, int count); +static int cypress_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void cypress_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static int cypress_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static void cypress_send (struct usb_serial_port *port); -static int cypress_write_room (struct usb_serial_port *port); -static int cypress_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg); -static void cypress_set_termios (struct usb_serial_port *port, struct ktermios * old); -static int cypress_tiocmget (struct usb_serial_port *port, struct file *file); -static int cypress_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear); -static int cypress_chars_in_buffer (struct usb_serial_port *port); -static void cypress_throttle (struct usb_serial_port *port); -static void cypress_unthrottle (struct usb_serial_port *port); +static int cypress_write_room (struct tty_struct *tty); +static int cypress_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg); +static void cypress_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old); +static int cypress_tiocmget (struct tty_struct *tty, struct file *file); +static int cypress_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); +static int cypress_chars_in_buffer (struct tty_struct *tty); +static void cypress_throttle (struct tty_struct *tty); +static void cypress_unthrottle (struct tty_struct *tty); static void cypress_set_dead (struct usb_serial_port *port); static void cypress_read_int_callback (struct urb *urb); static void cypress_write_int_callback (struct urb *urb); @@ -322,8 +322,10 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate) /* This function can either set or retrieve the current serial line settings */ -static int cypress_serial_control (struct usb_serial_port *port, speed_t baud_rate, int data_bits, int stop_bits, - int parity_enable, int parity_type, int reset, int cypress_request_type) +static int cypress_serial_control (struct tty_struct *tty, + struct usb_serial_port *port, speed_t baud_rate, int data_bits, + int stop_bits, int parity_enable, int parity_type, int reset, + int cypress_request_type) { int new_baudrate = 0, retval = 0, tries = 0; struct cypress_private *priv; @@ -395,7 +397,7 @@ static int cypress_serial_control (struct usb_serial_port *port, speed_t baud_ra spin_unlock_irqrestore(&priv->lock, flags); /* If we asked for a speed change encode it */ if (baud_rate) - tty_encode_baud_rate(port->tty, + tty_encode_baud_rate(tty, new_baudrate, new_baudrate); } break; @@ -611,7 +613,8 @@ static void cypress_shutdown (struct usb_serial *serial) } -static int cypress_open (struct usb_serial_port *port, struct file *filp) +static int cypress_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct cypress_private *priv = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; @@ -636,14 +639,15 @@ static int cypress_open (struct usb_serial_port *port, struct file *filp) spin_unlock_irqrestore(&priv->lock, flags); /* setting to zero could cause data loss */ - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; /* raise both lines and set termios */ spin_lock_irqsave(&priv->lock, flags); priv->line_control = CONTROL_DTR | CONTROL_RTS; priv->cmd_ctrl = 1; spin_unlock_irqrestore(&priv->lock, flags); - result = cypress_write(port, NULL, 0); + result = cypress_write(tty, port, NULL, 0); if (result) { dev_err(&port->dev, "%s - failed setting the control lines - error %d\n", __func__, result); @@ -651,7 +655,8 @@ static int cypress_open (struct usb_serial_port *port, struct file *filp) } else dbg("%s - success setting the control lines", __func__); - cypress_set_termios(port, &priv->tmp_termios); + if (tty) + cypress_set_termios(tty, port, &priv->tmp_termios); /* setup the port and start reading from the device */ if(!port->interrupt_in_urb){ @@ -674,7 +679,8 @@ static int cypress_open (struct usb_serial_port *port, struct file *filp) } /* cypress_open */ -static void cypress_close(struct usb_serial_port *port, struct file * filp) +static void cypress_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct cypress_private *priv = usb_get_serial_port_data(port); unsigned int c_cflag; @@ -688,7 +694,7 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp) spin_lock_irq(&priv->lock); timeout = CYPRESS_CLOSING_WAIT; init_waitqueue_entry(&wait, current); - add_wait_queue(&port->tty->write_wait, &wait); + add_wait_queue(&tty->write_wait, &wait); for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (cypress_buf_data_avail(priv->buf) == 0 @@ -701,7 +707,7 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp) spin_lock_irq(&priv->lock); } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->tty->write_wait, &wait); + remove_wait_queue(&tty->write_wait, &wait); /* clear out any remaining data in the buffer */ cypress_buf_clear(priv->buf); spin_unlock_irq(&priv->lock); @@ -713,19 +719,21 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp) return; } /* wait for characters to drain from device */ - bps = tty_get_baud_rate(port->tty); - if (bps > 1200) - timeout = max((HZ*2560)/bps,HZ/10); - else - timeout = 2*HZ; - schedule_timeout_interruptible(timeout); + if (tty) { + bps = tty_get_baud_rate(tty); + if (bps > 1200) + timeout = max((HZ*2560)/bps,HZ/10); + else + timeout = 2*HZ; + schedule_timeout_interruptible(timeout); + } dbg("%s - stopping urbs", __func__); usb_kill_urb (port->interrupt_in_urb); usb_kill_urb (port->interrupt_out_urb); - if (port->tty) { - c_cflag = port->tty->termios->c_cflag; + if (tty) { + c_cflag = tty->termios->c_cflag; if (c_cflag & HUPCL) { /* drop dtr and rts */ priv = usb_get_serial_port_data(port); @@ -733,7 +741,7 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp) priv->line_control = 0; priv->cmd_ctrl = 1; spin_unlock_irq(&priv->lock); - cypress_write(port, NULL, 0); + cypress_write(tty, port, NULL, 0); } } @@ -744,7 +752,8 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp) } /* cypress_close */ -static int cypress_write(struct usb_serial_port *port, const unsigned char *buf, int count) +static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { struct cypress_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -878,8 +887,9 @@ send: /* returns how much space is available in the soft buffer */ -static int cypress_write_room(struct usb_serial_port *port) +static int cypress_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); int room = 0; unsigned long flags; @@ -895,8 +905,9 @@ static int cypress_write_room(struct usb_serial_port *port) } -static int cypress_tiocmget (struct usb_serial_port *port, struct file *file) +static int cypress_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); __u8 status, control; unsigned int result = 0; @@ -922,9 +933,10 @@ static int cypress_tiocmget (struct usb_serial_port *port, struct file *file) } -static int cypress_tiocmset (struct usb_serial_port *port, struct file *file, +static int cypress_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -942,12 +954,14 @@ static int cypress_tiocmset (struct usb_serial_port *port, struct file *file, priv->cmd_ctrl = 1; spin_unlock_irqrestore(&priv->lock, flags); - return cypress_write(port, NULL, 0); + return cypress_write(tty, port, NULL, 0); } -static int cypress_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) +static int cypress_ioctl(struct tty_struct *tty, struct file * file, + unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd); @@ -983,22 +997,18 @@ static int cypress_ioctl (struct usb_serial_port *port, struct file * file, unsi } } return 0; - break; default: break; } - dbg("%s - arg not supported - it was 0x%04x - check include/asm/ioctls.h", __func__, cmd); - return -ENOIOCTLCMD; } /* cypress_ioctl */ -static void cypress_set_termios (struct usb_serial_port *port, - struct ktermios *old_termios) +static void cypress_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct cypress_private *priv = usb_get_serial_port_data(port); - struct tty_struct *tty; int data_bits, stop_bits, parity_type, parity_enable; unsigned cflag, iflag; unsigned long flags; @@ -1007,8 +1017,6 @@ static void cypress_set_termios (struct usb_serial_port *port, dbg("%s - port %d", __func__, port->number); - tty = port->tty; - spin_lock_irqsave(&priv->lock, flags); if (!priv->termios_initialized) { if (priv->chiptype == CT_EARTHMATE) { @@ -1096,13 +1104,13 @@ static void cypress_set_termios (struct usb_serial_port *port, "%d data_bits (+5)", __func__, stop_bits, parity_enable, parity_type, data_bits); - cypress_serial_control(port, tty_get_baud_rate(tty), data_bits, stop_bits, + cypress_serial_control(tty, port, tty_get_baud_rate(tty), data_bits, stop_bits, parity_enable, parity_type, 0, CYPRESS_SET_CONFIG); /* we perform a CYPRESS_GET_CONFIG so that the current settings are * filled into the private structure this should confirm that all is * working if it returns what we just set */ - cypress_serial_control(port, 0, 0, 0, 0, 0, 0, CYPRESS_GET_CONFIG); + cypress_serial_control(tty, port, 0, 0, 0, 0, 0, 0, CYPRESS_GET_CONFIG); /* Here we can define custom tty settings for devices; the main tty * termios flag base comes from empeg.c */ @@ -1142,14 +1150,15 @@ static void cypress_set_termios (struct usb_serial_port *port, /* if necessary, set lines */ if (linechange) { priv->cmd_ctrl = 1; - cypress_write(port, NULL, 0); + cypress_write(tty, port, NULL, 0); } } /* cypress_set_termios */ /* returns amount of data still left in soft buffer */ -static int cypress_chars_in_buffer(struct usb_serial_port *port) +static int cypress_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); int chars = 0; unsigned long flags; @@ -1165,8 +1174,9 @@ static int cypress_chars_in_buffer(struct usb_serial_port *port) } -static void cypress_throttle (struct usb_serial_port *port) +static void cypress_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -1178,8 +1188,9 @@ static void cypress_throttle (struct usb_serial_port *port) } -static void cypress_unthrottle (struct usb_serial_port *port) +static void cypress_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); int actually_throttled, result; unsigned long flags; @@ -1251,7 +1262,7 @@ static void cypress_read_int_callback(struct urb *urb) } spin_unlock_irqrestore(&priv->lock, flags); - tty = port->tty; + tty = port->port.tty; if (!tty) { dbg("%s - bad tty pointer - exiting", __func__); return; @@ -1327,7 +1338,7 @@ static void cypress_read_int_callback(struct urb *urb) data[i]); tty_insert_flip_char(tty, data[i], tty_flag); } - tty_flip_buffer_push(port->tty); + tty_flip_buffer_push(port->port.tty); } spin_lock_irqsave(&priv->lock, flags); @@ -1339,7 +1350,7 @@ continue_read: /* Continue trying to always read... unless the port has closed. */ - if (port->open_count > 0 && priv->comm_is_ok) { + if (port->port.count > 0 && priv->comm_is_ok) { usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev, usb_rcvintpipe(port->serial->dev, port->interrupt_in_endpointAddress), diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 28bc6fcf44f0..dc92dbfc962e 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -15,7 +15,7 @@ * Al Borchers (borchers@steinerpoint.com) * * (12/03/2001) gkh -* switched to using port->open_count instead of private version. +* switched to using port->port.count instead of private version. * Removed port->active * * (04/08/2001) gb @@ -441,22 +441,23 @@ static int digi_set_modem_signals(struct usb_serial_port *port, unsigned int modem_signals, int interruptible); static int digi_transmit_idle(struct usb_serial_port *port, unsigned long timeout); -static void digi_rx_throttle (struct usb_serial_port *port); -static void digi_rx_unthrottle (struct usb_serial_port *port); -static void digi_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios); -static void digi_break_ctl(struct usb_serial_port *port, int break_state); -static int digi_ioctl(struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg); -static int digi_tiocmget(struct usb_serial_port *port, struct file *file); -static int digi_tiocmset(struct usb_serial_port *port, struct file *file, +static void digi_rx_throttle (struct tty_struct *tty); +static void digi_rx_unthrottle (struct tty_struct *tty); +static void digi_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios); +static void digi_break_ctl(struct tty_struct *tty, int break_state); +static int digi_tiocmget(struct tty_struct *tty, struct file *file); +static int digi_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); -static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count); +static int digi_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count); static void digi_write_bulk_callback(struct urb *urb); -static int digi_write_room(struct usb_serial_port *port); -static int digi_chars_in_buffer(struct usb_serial_port *port); -static int digi_open(struct usb_serial_port *port, struct file *filp); -static void digi_close(struct usb_serial_port *port, struct file *filp); +static int digi_write_room(struct tty_struct *tty); +static int digi_chars_in_buffer(struct tty_struct *tty); +static int digi_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp); +static void digi_close(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp); static int digi_startup_device(struct usb_serial *serial); static int digi_startup(struct usb_serial *serial); static void digi_shutdown(struct usb_serial *serial); @@ -516,7 +517,6 @@ static struct usb_serial_driver digi_acceleport_2_device = { .chars_in_buffer = digi_chars_in_buffer, .throttle = digi_rx_throttle, .unthrottle = digi_rx_unthrottle, - .ioctl = digi_ioctl, .set_termios = digi_set_termios, .break_ctl = digi_break_ctl, .tiocmget = digi_tiocmget, @@ -543,7 +543,6 @@ static struct usb_serial_driver digi_acceleport_4_device = { .chars_in_buffer = digi_chars_in_buffer, .throttle = digi_rx_throttle, .unthrottle = digi_rx_unthrottle, - .ioctl = digi_ioctl, .set_termios = digi_set_termios, .break_ctl = digi_break_ctl, .tiocmget = digi_tiocmget, @@ -604,7 +603,7 @@ static void digi_wakeup_write_lock(struct work_struct *work) static void digi_wakeup_write(struct usb_serial_port *port) { - tty_wakeup(port->tty); + tty_wakeup(port->port.tty); } @@ -856,9 +855,10 @@ static int digi_transmit_idle(struct usb_serial_port *port, } -static void digi_rx_throttle(struct usb_serial_port *port) +static void digi_rx_throttle(struct tty_struct *tty) { unsigned long flags; + struct usb_serial_port *port = tty->driver_data; struct digi_port *priv = usb_get_serial_port_data(port); @@ -872,10 +872,11 @@ static void digi_rx_throttle(struct usb_serial_port *port) } -static void digi_rx_unthrottle(struct usb_serial_port *port) +static void digi_rx_unthrottle(struct tty_struct *tty) { int ret = 0; unsigned long flags; + struct usb_serial_port *port = tty->driver_data; struct digi_port *priv = usb_get_serial_port_data(port); dbg("digi_rx_unthrottle: TOP: port=%d", priv->dp_port_num); @@ -900,12 +901,10 @@ static void digi_rx_unthrottle(struct usb_serial_port *port) } -static void digi_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void digi_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { - struct digi_port *priv = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; unsigned int iflag = tty->termios->c_iflag; unsigned int cflag = tty->termios->c_cflag; unsigned int old_iflag = old_termios->c_iflag; @@ -1088,8 +1087,9 @@ static void digi_set_termios(struct usb_serial_port *port, } -static void digi_break_ctl(struct usb_serial_port *port, int break_state) +static void digi_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; unsigned char buf[4]; buf[0] = DIGI_CMD_BREAK_CONTROL; @@ -1100,8 +1100,9 @@ static void digi_break_ctl(struct usb_serial_port *port, int break_state) } -static int digi_tiocmget(struct usb_serial_port *port, struct file *file) +static int digi_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct digi_port *priv = usb_get_serial_port_data(port); unsigned int val; unsigned long flags; @@ -1115,9 +1116,10 @@ static int digi_tiocmget(struct usb_serial_port *port, struct file *file) } -static int digi_tiocmset(struct usb_serial_port *port, struct file *file, +static int digi_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct digi_port *priv = usb_get_serial_port_data(port); unsigned int val; unsigned long flags; @@ -1131,27 +1133,8 @@ static int digi_tiocmset(struct usb_serial_port *port, struct file *file, } -static int digi_ioctl(struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct digi_port *priv = usb_get_serial_port_data(port); - dbg("digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd); - - switch (cmd) { - case TIOCMIWAIT: - /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ - /* TODO */ - return 0; - case TIOCGICOUNT: - /* return count of modemline transitions */ - /* TODO */ - return 0; - } - return -ENOIOCTLCMD; - -} - -static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count) +static int digi_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { int ret,data_len,new_len; @@ -1261,7 +1244,7 @@ static void digi_write_bulk_callback(struct urb *urb) /* try to send any buffered data on this port, if it is open */ spin_lock(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - if (port->open_count && port->write_urb->status != -EINPROGRESS + if (port->port.count && port->write_urb->status != -EINPROGRESS && priv->dp_out_buf_len > 0) { *((unsigned char *)(port->write_urb->transfer_buffer)) = (unsigned char)DIGI_CMD_SEND_DATA; @@ -1288,11 +1271,11 @@ static void digi_write_bulk_callback(struct urb *urb) __func__, ret, priv->dp_port_num); } -static int digi_write_room(struct usb_serial_port *port) +static int digi_write_room(struct tty_struct *tty) { - - int room; + struct usb_serial_port *port = tty->driver_data; struct digi_port *priv = usb_get_serial_port_data(port); + int room; unsigned long flags = 0; spin_lock_irqsave(&priv->dp_port_lock, flags); @@ -1308,12 +1291,11 @@ static int digi_write_room(struct usb_serial_port *port) } -static int digi_chars_in_buffer(struct usb_serial_port *port) +static int digi_chars_in_buffer(struct tty_struct *tty) { - + struct usb_serial_port *port = tty->driver_data; struct digi_port *priv = usb_get_serial_port_data(port); - if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use) { dbg("digi_chars_in_buffer: port=%d, chars=%d", @@ -1329,7 +1311,8 @@ static int digi_chars_in_buffer(struct usb_serial_port *port) } -static int digi_open(struct usb_serial_port *port, struct file *filp) +static int digi_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) { int ret; unsigned char buf[32]; @@ -1338,7 +1321,7 @@ static int digi_open(struct usb_serial_port *port, struct file *filp) unsigned long flags = 0; dbg("digi_open: TOP: port=%d, open_count=%d", - priv->dp_port_num, port->open_count); + priv->dp_port_num, port->port.count); /* be sure the device is started up */ if (digi_startup_device(port->serial) != 0) @@ -1380,9 +1363,11 @@ static int digi_open(struct usb_serial_port *port, struct file *filp) dbg("digi_open: write oob failed, ret=%d", ret); /* set termios settings */ - not_termios.c_cflag = ~port->tty->termios->c_cflag; - not_termios.c_iflag = ~port->tty->termios->c_iflag; - digi_set_termios(port, ¬_termios); + if (tty) { + not_termios.c_cflag = ~tty->termios->c_cflag; + not_termios.c_iflag = ~tty->termios->c_iflag; + digi_set_termios(tty, port, ¬_termios); + } /* set DTR and RTS */ digi_set_modem_signals(port, TIOCM_DTR|TIOCM_RTS, 1); @@ -1391,16 +1376,16 @@ static int digi_open(struct usb_serial_port *port, struct file *filp) } -static void digi_close(struct usb_serial_port *port, struct file *filp) +static void digi_close(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) { DEFINE_WAIT(wait); int ret; unsigned char buf[32]; - struct tty_struct *tty = port->tty; struct digi_port *priv = usb_get_serial_port_data(port); dbg("digi_close: TOP: port=%d, open_count=%d", - priv->dp_port_num, port->open_count); + priv->dp_port_num, port->port.count); mutex_lock(&port->serial->disc_mutex); /* if disconnected, just clear flags */ @@ -1663,7 +1648,7 @@ static int digi_read_inb_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; struct digi_port *priv = usb_get_serial_port_data(port); int opcode = ((unsigned char *)urb->transfer_buffer)[0]; int len = ((unsigned char *)urb->transfer_buffer)[1]; @@ -1675,7 +1660,7 @@ static int digi_read_inb_callback(struct urb *urb) /* do not process callbacks on closed ports */ /* but do continue the read chain */ - if (port->open_count == 0) + if (port->port.count == 0) return 0; /* short/multiple packet check */ @@ -1785,17 +1770,17 @@ static int digi_read_oob_callback(struct urb *urb) if (val & DIGI_READ_INPUT_SIGNALS_CTS) { priv->dp_modem_signals |= TIOCM_CTS; /* port must be open to use tty struct */ - if (port->open_count - && port->tty->termios->c_cflag & CRTSCTS) { - port->tty->hw_stopped = 0; + if (port->port.count + && port->port.tty->termios->c_cflag & CRTSCTS) { + port->port.tty->hw_stopped = 0; digi_wakeup_write(port); } } else { priv->dp_modem_signals &= ~TIOCM_CTS; /* port must be open to use tty struct */ - if (port->open_count - && port->tty->termios->c_cflag & CRTSCTS) { - port->tty->hw_stopped = 1; + if (port->port.count + && port->port.tty->termios->c_cflag & CRTSCTS) { + port->port.tty->hw_stopped = 1; } } if (val & DIGI_READ_INPUT_SIGNALS_DSR) diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index c5ec309a3cb1..47ebdf5fad8e 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -31,7 +31,7 @@ * Moved MOD_DEC_USE_COUNT to end of empeg_close(). * * (12/03/2000) gb - * Added port->tty->ldisc.set_termios(port->tty, NULL) to empeg_open() + * Added port->port.tty->ldisc.set_termios(port->port.tty, NULL) to empeg_open() * This notifies the tty driver that the termios have changed. * * (11/13/2000) gb @@ -77,22 +77,18 @@ static int debug; #define EMPEG_PRODUCT_ID 0x0001 /* function prototypes for an empeg-car player */ -static int empeg_open (struct usb_serial_port *port, struct file *filp); -static void empeg_close (struct usb_serial_port *port, struct file *filp); -static int empeg_write (struct usb_serial_port *port, +static int empeg_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void empeg_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static int empeg_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); -static int empeg_write_room (struct usb_serial_port *port); -static int empeg_chars_in_buffer (struct usb_serial_port *port); -static void empeg_throttle (struct usb_serial_port *port); -static void empeg_unthrottle (struct usb_serial_port *port); +static int empeg_write_room (struct tty_struct *tty); +static int empeg_chars_in_buffer (struct tty_struct *tty); +static void empeg_throttle (struct tty_struct *tty); +static void empeg_unthrottle (struct tty_struct *tty); static int empeg_startup (struct usb_serial *serial); static void empeg_shutdown (struct usb_serial *serial); -static int empeg_ioctl (struct usb_serial_port *port, - struct file * file, - unsigned int cmd, - unsigned long arg); -static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); +static void empeg_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios); static void empeg_write_bulk_callback (struct urb *urb); static void empeg_read_bulk_callback (struct urb *urb); @@ -125,7 +121,6 @@ static struct usb_serial_driver empeg_device = { .unthrottle = empeg_unthrottle, .attach = empeg_startup, .shutdown = empeg_shutdown, - .ioctl = empeg_ioctl, .set_termios = empeg_set_termios, .write = empeg_write, .write_room = empeg_write_room, @@ -145,7 +140,8 @@ static int bytes_out; /****************************************************************************** * Empeg specific driver functions ******************************************************************************/ -static int empeg_open (struct usb_serial_port *port, struct file *filp) +static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) { struct usb_serial *serial = port->serial; int result = 0; @@ -153,7 +149,7 @@ static int empeg_open (struct usb_serial_port *port, struct file *filp) dbg("%s - port %d", __func__, port->number); /* Force default termio settings */ - empeg_set_termios (port, NULL) ; + empeg_set_termios (tty, port, NULL) ; bytes_in = 0; bytes_out = 0; @@ -178,7 +174,8 @@ static int empeg_open (struct usb_serial_port *port, struct file *filp) } -static void empeg_close (struct usb_serial_port *port, struct file * filp) +static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port, + struct file * filp) { dbg("%s - port %d", __func__, port->number); @@ -189,7 +186,7 @@ static void empeg_close (struct usb_serial_port *port, struct file * filp) } -static int empeg_write (struct usb_serial_port *port, const unsigned char *buf, int count) +static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { struct usb_serial *serial = port->serial; struct urb *urb; @@ -203,7 +200,6 @@ static int empeg_write (struct usb_serial_port *port, const unsigned char *buf, dbg("%s - port %d", __func__, port->number); while (count > 0) { - /* try to find a free urb in our list of them */ urb = NULL; @@ -262,15 +258,14 @@ static int empeg_write (struct usb_serial_port *port, const unsigned char *buf, bytes_out += transfer_size; } - exit: return bytes_sent; - } -static int empeg_write_room (struct usb_serial_port *port) +static int empeg_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; unsigned long flags; int i; int room = 0; @@ -278,25 +273,22 @@ static int empeg_write_room (struct usb_serial_port *port) dbg("%s - port %d", __func__, port->number); spin_lock_irqsave (&write_urb_pool_lock, flags); - /* tally up the number of bytes available */ for (i = 0; i < NUM_URBS; ++i) { if (write_urb_pool[i]->status != -EINPROGRESS) { room += URB_TRANSFER_BUFFER_SIZE; } } - spin_unlock_irqrestore (&write_urb_pool_lock, flags); - dbg("%s - returns %d", __func__, room); - - return (room); + return room; } -static int empeg_chars_in_buffer (struct usb_serial_port *port) +static int empeg_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; unsigned long flags; int i; int chars = 0; @@ -356,7 +348,7 @@ static void empeg_read_bulk_callback (struct urb *urb) usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); - tty = port->tty; + tty = port->port.tty; if (urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); @@ -386,27 +378,24 @@ static void empeg_read_bulk_callback (struct urb *urb) } -static void empeg_throttle (struct usb_serial_port *port) +static void empeg_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); usb_kill_urb(port->read_urb); } -static void empeg_unthrottle (struct usb_serial_port *port) +static void empeg_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int result; - dbg("%s - port %d", __func__, port->number); port->read_urb->dev = port->serial->dev; - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (result) dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __func__, result); - - return; } @@ -436,17 +425,10 @@ static void empeg_shutdown (struct usb_serial *serial) } -static int empeg_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) -{ - dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd); - - return -ENOIOCTLCMD; -} - - -static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void empeg_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { - struct ktermios *termios = port->tty->termios; + struct ktermios *termios = tty->termios; dbg("%s - port %d", __func__, port->number); /* @@ -491,8 +473,8 @@ static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *ol * this is bad as it opens up the possibility of dropping bytes * on the floor. We don't want to drop bytes on the floor. :) */ - port->tty->low_latency = 1; - tty_encode_baud_rate(port->tty, 115200, 115200); + tty->low_latency = 1; + tty_encode_baud_rate(tty, 115200, 115200); } diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 0ff4a3971e45..abbb447e5375 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -682,21 +682,21 @@ static int ftdi_sio_probe (struct usb_serial *serial, const struct usb_device_i static void ftdi_shutdown (struct usb_serial *serial); static int ftdi_sio_port_probe (struct usb_serial_port *port); static int ftdi_sio_port_remove (struct usb_serial_port *port); -static int ftdi_open (struct usb_serial_port *port, struct file *filp); -static void ftdi_close (struct usb_serial_port *port, struct file *filp); -static int ftdi_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static int ftdi_write_room (struct usb_serial_port *port); -static int ftdi_chars_in_buffer (struct usb_serial_port *port); +static int ftdi_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void ftdi_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static int ftdi_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); +static int ftdi_write_room (struct tty_struct *tty); +static int ftdi_chars_in_buffer (struct tty_struct *tty); static void ftdi_write_bulk_callback (struct urb *urb); static void ftdi_read_bulk_callback (struct urb *urb); static void ftdi_process_read (struct work_struct *work); -static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios * old); -static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file); -static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear); -static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg); -static void ftdi_break_ctl (struct usb_serial_port *port, int break_state ); -static void ftdi_throttle (struct usb_serial_port *port); -static void ftdi_unthrottle (struct usb_serial_port *port); +static void ftdi_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old); +static int ftdi_tiocmget (struct tty_struct *tty, struct file *file); +static int ftdi_tiocmset (struct tty_struct *tty, struct file * file, unsigned int set, unsigned int clear); +static int ftdi_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg); +static void ftdi_break_ctl (struct tty_struct *tty, int break_state ); +static void ftdi_throttle (struct tty_struct *tty); +static void ftdi_unthrottle (struct tty_struct *tty); static unsigned short int ftdi_232am_baud_base_to_divisor (int baud, int base); static unsigned short int ftdi_232am_baud_to_divisor (int baud); @@ -843,42 +843,7 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set, unsigned } -static __u32 get_ftdi_divisor(struct usb_serial_port * port); - - -static int change_speed(struct usb_serial_port *port) -{ - struct ftdi_private *priv = usb_get_serial_port_data(port); - char *buf; - __u16 urb_value; - __u16 urb_index; - __u32 urb_index_value; - int rv; - - buf = kmalloc(1, GFP_NOIO); - if (!buf) - return -ENOMEM; - - urb_index_value = get_ftdi_divisor(port); - urb_value = (__u16)urb_index_value; - urb_index = (__u16)(urb_index_value >> 16); - if (priv->interface) { /* FT2232C */ - urb_index = (__u16)((urb_index << 8) | priv->interface); - } - - rv = usb_control_msg(port->serial->dev, - usb_sndctrlpipe(port->serial->dev, 0), - FTDI_SIO_SET_BAUDRATE_REQUEST, - FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, - urb_value, urb_index, - buf, 0, WDR_SHORT_TIMEOUT); - - kfree(buf); - return rv; -} - - -static __u32 get_ftdi_divisor(struct usb_serial_port * port) +static __u32 get_ftdi_divisor(struct tty_struct *tty, struct usb_serial_port *port) { /* get_ftdi_divisor */ struct ftdi_private *priv = usb_get_serial_port_data(port); __u32 div_value = 0; @@ -910,7 +875,7 @@ static __u32 get_ftdi_divisor(struct usb_serial_port * port) /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */ - baud = tty_get_baud_rate(port->tty); + baud = tty_get_baud_rate(tty); dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */ @@ -976,10 +941,42 @@ static __u32 get_ftdi_divisor(struct usb_serial_port * port) ftdi_chip_name[priv->chip_type]); } - tty_encode_baud_rate(port->tty, baud, baud); + tty_encode_baud_rate(tty, baud, baud); return(div_value); } +static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) +{ + struct ftdi_private *priv = usb_get_serial_port_data(port); + char *buf; + __u16 urb_value; + __u16 urb_index; + __u32 urb_index_value; + int rv; + + buf = kmalloc(1, GFP_NOIO); + if (!buf) + return -ENOMEM; + + urb_index_value = get_ftdi_divisor(tty, port); + urb_value = (__u16)urb_index_value; + urb_index = (__u16)(urb_index_value >> 16); + if (priv->interface) { /* FT2232C */ + urb_index = (__u16)((urb_index << 8) | priv->interface); + } + + rv = usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + FTDI_SIO_SET_BAUDRATE_REQUEST, + FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, + urb_value, urb_index, + buf, 0, WDR_SHORT_TIMEOUT); + + kfree(buf); + return rv; +} + + static int get_serial_info(struct usb_serial_port * port, struct serial_struct __user * retinfo) { @@ -998,7 +995,8 @@ static int get_serial_info(struct usb_serial_port * port, struct serial_struct _ } /* get_serial_info */ -static int set_serial_info(struct usb_serial_port * port, struct serial_struct __user * newinfo) +static int set_serial_info(struct tty_struct *tty, + struct usb_serial_port * port, struct serial_struct __user * newinfo) { /* set_serial_info */ struct ftdi_private *priv = usb_get_serial_port_data(port); struct serial_struct new_serial; @@ -1030,30 +1028,29 @@ static int set_serial_info(struct usb_serial_port * port, struct serial_struct _ (new_serial.flags & ASYNC_FLAGS)); priv->custom_divisor = new_serial.custom_divisor; - port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; check_and_exit: if ((old_priv.flags & ASYNC_SPD_MASK) != (priv->flags & ASYNC_SPD_MASK)) { if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - port->tty->alt_speed = 57600; + tty->alt_speed = 57600; else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - port->tty->alt_speed = 115200; + tty->alt_speed = 115200; else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) - port->tty->alt_speed = 230400; + tty->alt_speed = 230400; else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) - port->tty->alt_speed = 460800; + tty->alt_speed = 460800; else - port->tty->alt_speed = 0; + tty->alt_speed = 0; } if (((old_priv.flags & ASYNC_SPD_MASK) != (priv->flags & ASYNC_SPD_MASK)) || (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && (old_priv.custom_divisor != priv->custom_divisor))) { - change_speed(port); + change_speed(tty, port); } - - return (0); + return 0; } /* set_serial_info */ @@ -1415,7 +1412,8 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) return 0; } -static int ftdi_open (struct usb_serial_port *port, struct file *filp) +static int ftdi_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { /* ftdi_open */ struct usb_device *dev = port->serial->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); @@ -1433,8 +1431,8 @@ static int ftdi_open (struct usb_serial_port *port, struct file *filp) priv->rx_bytes = 0; spin_unlock_irqrestore(&priv->rx_lock, flags); - if (port->tty) - port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + if (tty) + tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; /* No error checking for this (will get errors later anyway) */ /* See ftdi_sio.h for description of what is reset */ @@ -1448,8 +1446,8 @@ static int ftdi_open (struct usb_serial_port *port, struct file *filp) This is same behaviour as serial.c/rs_open() - Kuba */ /* ftdi_set_termios will send usb control messages */ - if (port->tty) - ftdi_set_termios(port, port->tty->termios); + if (tty) + ftdi_set_termios(tty, port, tty->termios); /* FIXME: Flow control might be enabled, so it should be checked - we have no control of defaults! */ @@ -1485,9 +1483,10 @@ static int ftdi_open (struct usb_serial_port *port, struct file *filp) * */ -static void ftdi_close (struct usb_serial_port *port, struct file *filp) +static void ftdi_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { /* ftdi_close */ - unsigned int c_cflag = port->tty->termios->c_cflag; + unsigned int c_cflag = tty->termios->c_cflag; struct ftdi_private *priv = usb_get_serial_port_data(port); char buf[1]; @@ -1527,7 +1526,7 @@ static void ftdi_close (struct usb_serial_port *port, struct file *filp) * * The new devices do not require this byte */ -static int ftdi_write (struct usb_serial_port *port, +static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { /* ftdi_write */ struct ftdi_private *priv = usb_get_serial_port_data(port); @@ -1686,8 +1685,9 @@ static void ftdi_write_bulk_callback (struct urb *urb) } /* ftdi_write_bulk_callback */ -static int ftdi_write_room( struct usb_serial_port *port ) +static int ftdi_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); int room; unsigned long flags; @@ -1707,11 +1707,11 @@ static int ftdi_write_room( struct usb_serial_port *port ) } spin_unlock_irqrestore(&priv->tx_lock, flags); return room; -} /* ftdi_write_room */ - +} -static int ftdi_chars_in_buffer (struct usb_serial_port *port) -{ /* ftdi_chars_in_buffer */ +static int ftdi_chars_in_buffer(struct tty_struct *tty) +{ + struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); int buffered; unsigned long flags; @@ -1726,12 +1726,10 @@ static int ftdi_chars_in_buffer (struct usb_serial_port *port) buffered = 0; } return buffered; -} /* ftdi_chars_in_buffer */ - - +} -static void ftdi_read_bulk_callback (struct urb *urb) -{ /* ftdi_read_bulk_callback */ +static void ftdi_read_bulk_callback(struct urb *urb) +{ struct usb_serial_port *port = urb->context; struct tty_struct *tty; struct ftdi_private *priv; @@ -1747,10 +1745,10 @@ static void ftdi_read_bulk_callback (struct urb *urb) dbg("%s - port %d", __func__, port->number); - if (port->open_count <= 0) + if (port->port.count <= 0) return; - tty = port->tty; + tty = port->port.tty; if (!tty) { dbg("%s - bad tty pointer - exiting",__func__); return; @@ -1803,10 +1801,10 @@ static void ftdi_process_read (struct work_struct *work) dbg("%s - port %d", __func__, port->number); - if (port->open_count <= 0) + if (port->port.count <= 0) return; - tty = port->tty; + tty = port->port.tty; if (!tty) { dbg("%s - bad tty pointer - exiting",__func__); return; @@ -1954,7 +1952,7 @@ static void ftdi_process_read (struct work_struct *work) } spin_unlock_irqrestore(&priv->rx_lock, flags); /* if the port is closed stop trying to read */ - if (port->open_count > 0){ + if (port->port.count > 0){ /* delay processing of remainder */ schedule_delayed_work(&priv->rx_work, 1); } else { @@ -1967,7 +1965,7 @@ static void ftdi_process_read (struct work_struct *work) priv->rx_processed = 0; /* if the port is closed stop trying to read */ - if (port->open_count > 0){ + if (port->port.count > 0){ /* Continue trying to always read */ usb_fill_bulk_urb(port->read_urb, port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), @@ -1983,8 +1981,9 @@ static void ftdi_process_read (struct work_struct *work) } /* ftdi_process_read */ -static void ftdi_break_ctl( struct usb_serial_port *port, int break_state ) +static void ftdi_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); __u16 urb_value = 0; char buf[1]; @@ -2018,11 +2017,12 @@ static void ftdi_break_ctl( struct usb_serial_port *port, int break_state ) * WARNING: set_termios calls this with old_termios in kernel space */ -static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void ftdi_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { /* ftdi_termios */ struct usb_device *dev = port->serial->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); - struct ktermios *termios = port->tty->termios; + struct ktermios *termios = tty->termios; unsigned int cflag = termios->c_cflag; __u16 urb_value; /* will hold the new flags */ char buf[1]; /* Perhaps I should dynamically alloc this? */ @@ -2037,7 +2037,7 @@ static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios *old /* Force baud rate if this device requires it, unless it is set to B0. */ if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { dbg("%s: forcing baud rate for this device", __func__); - tty_encode_baud_rate(port->tty, priv->force_baud, + tty_encode_baud_rate(tty, priv->force_baud, priv->force_baud); } @@ -2104,7 +2104,7 @@ static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios *old clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } else { /* set the baudrate determined before */ - if (change_speed(port)) { + if (change_speed(tty, port)) { err("%s urb failed to set baudrate", __func__); } /* Ensure RTS and DTR are raised when baudrate changed from 0 */ @@ -2168,11 +2168,11 @@ static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios *old } return; -} /* ftdi_termios */ - +} -static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file) +static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); unsigned char buf[2]; int ret; @@ -2221,15 +2221,18 @@ static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file) priv->last_dtr_rts; } -static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear) +static int ftdi_tiocmset(struct tty_struct *tty, struct file * file, + unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; dbg("%s TIOCMSET", __func__); return update_mctrl(port, set, clear); } -static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) +static int ftdi_ioctl(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); dbg("%s cmd 0x%04x", __func__, cmd); @@ -2241,7 +2244,7 @@ static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigne return get_serial_info(port, (struct serial_struct __user *) arg); case TIOCSSERIAL: /* sets serial port data */ - return set_serial_info(port, (struct serial_struct __user *) arg); + return set_serial_info(tty, port, (struct serial_struct __user *) arg); /* * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change @@ -2280,25 +2283,20 @@ static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigne */ } } - return(0); - break; + return 0; default: break; - } - - /* This is not necessarily an error - turns out the higher layers will do * some ioctls itself (see comment above) */ dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); + return -ENOIOCTLCMD; +} - return(-ENOIOCTLCMD); -} /* ftdi_ioctl */ - - -static void ftdi_throttle (struct usb_serial_port *port) +static void ftdi_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -2310,8 +2308,9 @@ static void ftdi_throttle (struct usb_serial_port *port) } -static void ftdi_unthrottle (struct usb_serial_port *port) +static void ftdi_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); int actually_throttled; unsigned long flags; diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 8ce5a56a48e3..06cfa43c6f02 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -275,7 +275,7 @@ static inline int isAbortTrfCmnd(const unsigned char *buf) static void send_to_tty(struct usb_serial_port *port, char *data, unsigned int actual_length) { - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; if (tty && actual_length) { @@ -970,7 +970,8 @@ static int garmin_init_session(struct usb_serial_port *port) -static int garmin_open (struct usb_serial_port *port, struct file *filp) +static int garmin_open (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { unsigned long flags; int status = 0; @@ -983,8 +984,8 @@ static int garmin_open (struct usb_serial_port *port, struct file *filp) * through, otherwise it is scheduled, and with high data rates (like * with OHCI) data can get lost. */ - if (port->tty) - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->mode = initial_mode; @@ -998,17 +999,16 @@ static int garmin_open (struct usb_serial_port *port, struct file *filp) usb_kill_urb (port->write_urb); usb_kill_urb (port->read_urb); - if (garmin_data_p->state == STATE_RESET) { + if (garmin_data_p->state == STATE_RESET) status = garmin_init_session(port); - } garmin_data_p->state = STATE_ACTIVE; - return status; } -static void garmin_close (struct usb_serial_port *port, struct file * filp) +static void garmin_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct usb_serial *serial = port->serial; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); @@ -1042,7 +1042,6 @@ static void garmin_close (struct usb_serial_port *port, struct file * filp) mutex_unlock(&port->serial->disc_mutex); } - static void garmin_write_bulk_callback (struct urb *urb) { unsigned long flags; @@ -1145,10 +1144,8 @@ static int garmin_write_bulk (struct usb_serial_port *port, return count; } - - -static int garmin_write (struct usb_serial_port *port, - const unsigned char *buf, int count) +static int garmin_write (struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { int pktid, pktsiz, len; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); @@ -1158,7 +1155,6 @@ static int garmin_write (struct usb_serial_port *port, /* check for our private packets */ if (count >= GARMIN_PKTHDR_LENGTH) { - len = PRIVPKTSIZ; if (count < len) len = count; @@ -1226,8 +1222,9 @@ static int garmin_write (struct usb_serial_port *port, } -static int garmin_write_room (struct usb_serial_port *port) +static int garmin_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; /* * Report back the bytes currently available in the output buffer. */ @@ -1236,20 +1233,6 @@ static int garmin_write_room (struct usb_serial_port *port) } -static int garmin_chars_in_buffer (struct usb_serial_port *port) -{ - /* - * Report back the number of bytes currently in our input buffer. - * Will this lock up the driver - the buffer contains an incomplete - * package which will not be written to the device until it - * has been completed ? - */ - //struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); - //return garmin_data_p->insize; - return 0; -} - - static void garmin_read_process(struct garmin_data * garmin_data_p, unsigned char *data, unsigned data_length) { @@ -1468,10 +1451,11 @@ static int garmin_flush_queue(struct garmin_data * garmin_data_p) } -static void garmin_throttle (struct usb_serial_port *port) +static void garmin_throttle(struct tty_struct *tty) { - unsigned long flags; + struct usb_serial_port *port = tty->driver_data; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); + unsigned long flags; dbg("%s - port %d", __func__, port->number); /* set flag, data received will be put into a queue @@ -1482,10 +1466,11 @@ static void garmin_throttle (struct usb_serial_port *port) } -static void garmin_unthrottle (struct usb_serial_port *port) +static void garmin_unthrottle (struct tty_struct *tty) { - unsigned long flags; + struct usb_serial_port *port = tty->driver_data; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); + unsigned long flags; int status; dbg("%s - port %d", __func__, port->number); @@ -1507,8 +1492,6 @@ static void garmin_unthrottle (struct usb_serial_port *port) } } - - /* * The timer is currently only used to send queued packets to * the tty in cases where the protocol provides no own handshaking @@ -1526,7 +1509,7 @@ static void timeout_handler(unsigned long data) -static int garmin_attach (struct usb_serial *serial) +static int garmin_attach(struct usb_serial *serial) { int status = 0; struct usb_serial_port *port = serial->port[0]; @@ -1556,7 +1539,7 @@ static int garmin_attach (struct usb_serial *serial) } -static void garmin_shutdown (struct usb_serial *serial) +static void garmin_shutdown(struct usb_serial *serial) { struct usb_serial_port *port = serial->port[0]; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); @@ -1588,7 +1571,6 @@ static struct usb_serial_driver garmin_device = { .shutdown = garmin_shutdown, .write = garmin_write, .write_room = garmin_write_room, - .chars_in_buffer = garmin_chars_in_buffer, .write_bulk_callback = garmin_write_bulk_callback, .read_bulk_callback = garmin_read_bulk_callback, .read_int_callback = garmin_read_int_callback, diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 537f12a027c2..5128018c2766 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -112,7 +112,8 @@ void usb_serial_generic_deregister (void) #endif } -int usb_serial_generic_open (struct usb_serial_port *port, struct file *filp) +int usb_serial_generic_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; int result = 0; @@ -123,8 +124,8 @@ int usb_serial_generic_open (struct usb_serial_port *port, struct file *filp) /* force low_latency on so that our tty_push actually forces the data through, otherwise it is scheduled, and with high data rates (like with OHCI) data can get lost. */ - if (port->tty) - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; /* clear the throttle flags */ spin_lock_irqsave(&port->lock, flags); @@ -152,7 +153,7 @@ int usb_serial_generic_open (struct usb_serial_port *port, struct file *filp) } EXPORT_SYMBOL_GPL(usb_serial_generic_open); -static void generic_cleanup (struct usb_serial_port *port) +static void generic_cleanup(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; @@ -182,7 +183,7 @@ int usb_serial_generic_resume(struct usb_serial *serial) #endif for (i = 0; i < serial->num_ports; i++) { port = serial->port[i]; - if (port->open_count && port->read_urb) { + if (port->port.count && port->read_urb) { r = usb_submit_urb(port->read_urb, GFP_NOIO); if (r < 0) c++; @@ -192,13 +193,15 @@ int usb_serial_generic_resume(struct usb_serial *serial) return c ? -EIO : 0; } -void usb_serial_generic_close (struct usb_serial_port *port, struct file * filp) +void usb_serial_generic_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { dbg("%s - port %d", __func__, port->number); generic_cleanup (port); } -int usb_serial_generic_write(struct usb_serial_port *port, const unsigned char *buf, int count) +int usb_serial_generic_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count) { struct usb_serial *serial = port->serial; int result; @@ -255,8 +258,9 @@ int usb_serial_generic_write(struct usb_serial_port *port, const unsigned char * return 0; } -int usb_serial_generic_write_room (struct usb_serial_port *port) +int usb_serial_generic_write_room (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; int room = 0; @@ -272,8 +276,9 @@ int usb_serial_generic_write_room (struct usb_serial_port *port) return room; } -int usb_serial_generic_chars_in_buffer (struct usb_serial_port *port) +int usb_serial_generic_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; int chars = 0; @@ -286,7 +291,7 @@ int usb_serial_generic_chars_in_buffer (struct usb_serial_port *port) } dbg("%s - returns %d", __func__, chars); - return (chars); + return chars; } @@ -311,10 +316,10 @@ static void resubmit_read_urb(struct usb_serial_port *port, gfp_t mem_flags) } /* Push data to tty layer and resubmit the bulk read URB */ -static void flush_and_resubmit_read_urb (struct usb_serial_port *port) +static void flush_and_resubmit_read_urb(struct usb_serial_port *port) { struct urb *urb = port->read_urb; - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; int room; /* Push data to tty */ @@ -329,7 +334,7 @@ static void flush_and_resubmit_read_urb (struct usb_serial_port *port) resubmit_read_urb(port, GFP_ATOMIC); } -void usb_serial_generic_read_bulk_callback (struct urb *urb) +void usb_serial_generic_read_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; unsigned char *data = urb->transfer_buffer; @@ -357,7 +362,7 @@ void usb_serial_generic_read_bulk_callback (struct urb *urb) } EXPORT_SYMBOL_GPL(usb_serial_generic_read_bulk_callback); -void usb_serial_generic_write_bulk_callback (struct urb *urb) +void usb_serial_generic_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; int status = urb->status; @@ -374,8 +379,9 @@ void usb_serial_generic_write_bulk_callback (struct urb *urb) } EXPORT_SYMBOL_GPL(usb_serial_generic_write_bulk_callback); -void usb_serial_generic_throttle (struct usb_serial_port *port) +void usb_serial_generic_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; unsigned long flags; dbg("%s - port %d", __func__, port->number); @@ -387,8 +393,9 @@ void usb_serial_generic_throttle (struct usb_serial_port *port) spin_unlock_irqrestore(&port->lock, flags); } -void usb_serial_generic_unthrottle (struct usb_serial_port *port) +void usb_serial_generic_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int was_throttled; unsigned long flags; diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 2fd449bcfa35..29346d79df7b 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -206,18 +206,18 @@ static void edge_bulk_out_data_callback (struct urb *urb); static void edge_bulk_out_cmd_callback (struct urb *urb); /* function prototypes for the usbserial callbacks */ -static int edge_open (struct usb_serial_port *port, struct file *filp); -static void edge_close (struct usb_serial_port *port, struct file *filp); -static int edge_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static int edge_write_room (struct usb_serial_port *port); -static int edge_chars_in_buffer (struct usb_serial_port *port); -static void edge_throttle (struct usb_serial_port *port); -static void edge_unthrottle (struct usb_serial_port *port); -static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); -static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg); -static void edge_break (struct usb_serial_port *port, int break_state); -static int edge_tiocmget (struct usb_serial_port *port, struct file *file); -static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear); +static int edge_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void edge_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static int edge_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); +static int edge_write_room (struct tty_struct *tty); +static int edge_chars_in_buffer (struct tty_struct *tty); +static void edge_throttle (struct tty_struct *tty); +static void edge_unthrottle (struct tty_struct *tty); +static void edge_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios); +static int edge_ioctl (struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); +static void edge_break (struct tty_struct *tty, int break_state); +static int edge_tiocmget (struct tty_struct *tty, struct file *file); +static int edge_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); static int edge_startup (struct usb_serial *serial); static void edge_shutdown (struct usb_serial *serial); @@ -233,7 +233,8 @@ static void handle_new_lsr (struct edgeport_port *edge_port, __u8 lsrData, __u8 static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u8 param); static int calc_baud_rate_divisor (int baud_rate, int *divisor); static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRate); -static void change_port_settings (struct edgeport_port *edge_port, struct ktermios *old_termios); +static void change_port_settings (struct tty_struct *tty, struct edgeport_port *edge_port, + struct ktermios *old_termios); static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 regNum, __u8 regValue); static int write_cmd_usb (struct edgeport_port *edge_port, unsigned char *buffer, int writeLength); static void send_more_port_data (struct edgeport_serial *edge_serial, struct edgeport_port *edge_port); @@ -639,8 +640,8 @@ static void edge_interrupt_callback (struct urb *urb) dbg("%s - txcredits for port%d = %d", __func__, portNumber, edge_port->txCredits); /* tell the tty driver that something has changed */ - if (edge_port->port->tty) - tty_wakeup(edge_port->port->tty); + if (edge_port->port->port.tty) + tty_wakeup(edge_port->port->port.tty); // Since we have more credit, check if more data can be sent send_more_port_data(edge_serial, edge_port); @@ -737,7 +738,7 @@ static void edge_bulk_out_data_callback (struct urb *urb) __func__, status); } - tty = edge_port->port->tty; + tty = edge_port->port->port.tty; if (tty && edge_port->open) { /* let the tty driver wakeup if it has a special write_wakeup function */ @@ -781,7 +782,7 @@ static void edge_bulk_out_cmd_callback (struct urb *urb) } /* Get pointer to tty */ - tty = edge_port->port->tty; + tty = edge_port->port->port.tty; /* tell the tty driver that something has changed */ if (tty && edge_port->open) @@ -803,7 +804,8 @@ static void edge_bulk_out_cmd_callback (struct urb *urb) * If successful, we return 0 * Otherwise we return a negative error number. *****************************************************************************/ -static int edge_open (struct usb_serial_port *port, struct file * filp) +static int edge_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct usb_serial *serial; @@ -815,16 +817,15 @@ static int edge_open (struct usb_serial_port *port, struct file * filp) if (edge_port == NULL) return -ENODEV; - if (port->tty) - port->tty->low_latency = low_latency; + if (tty) + tty->low_latency = low_latency; /* see if we've set up our endpoint info yet (can't set it up in edge_startup as the structures were not set up at that time.) */ serial = port->serial; edge_serial = usb_get_serial_data(serial); - if (edge_serial == NULL) { + if (edge_serial == NULL) return -ENODEV; - } if (edge_serial->interrupt_in_buffer == NULL) { struct usb_serial_port *port0 = serial->port[0]; @@ -908,7 +909,7 @@ static int edge_open (struct usb_serial_port *port, struct file * filp) if (!edge_port->txfifo.fifo) { dbg("%s - no memory", __func__); - edge_close (port, filp); + edge_close (tty, port, filp); return -ENOMEM; } @@ -918,7 +919,7 @@ static int edge_open (struct usb_serial_port *port, struct file * filp) if (!edge_port->write_urb) { dbg("%s - no memory", __func__); - edge_close (port, filp); + edge_close (tty, port, filp); return -ENOMEM; } @@ -1038,7 +1039,8 @@ static void block_until_tx_empty (struct edgeport_port *edge_port) * edge_close * this function is called by the tty driver when a port is closed *****************************************************************************/ -static void edge_close (struct usb_serial_port *port, struct file * filp) +static void edge_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct edgeport_serial *edge_serial; struct edgeport_port *edge_port; @@ -1106,7 +1108,8 @@ static void edge_close (struct usb_serial_port *port, struct file * filp) * If successful, we return the number of bytes written, otherwise we return * a negative error number. *****************************************************************************/ -static int edge_write (struct usb_serial_port *port, const unsigned char *data, int count) +static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *data, int count) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct TxFifo *fifo; @@ -1308,8 +1311,9 @@ exit_send: * (the txCredits), * Otherwise we return a negative error number. *****************************************************************************/ -static int edge_write_room (struct usb_serial_port *port) +static int edge_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); int room; unsigned long flags; @@ -1347,8 +1351,9 @@ static int edge_write_room (struct usb_serial_port *port) * system, * Otherwise we return a negative error number. *****************************************************************************/ -static int edge_chars_in_buffer (struct usb_serial_port *port) +static int edge_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); int num_chars; unsigned long flags; @@ -1381,10 +1386,10 @@ static int edge_chars_in_buffer (struct usb_serial_port *port) * this function is called by the tty driver when it wants to stop the data * being read from the port. *****************************************************************************/ -static void edge_throttle (struct usb_serial_port *port) +static void edge_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty; int status; dbg("%s - port %d", __func__, port->number); @@ -1397,16 +1402,10 @@ static void edge_throttle (struct usb_serial_port *port) return; } - tty = port->tty; - if (!tty) { - dbg ("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the stop character */ if (I_IXOFF(tty)) { unsigned char stop_char = STOP_CHAR(tty); - status = edge_write (port, &stop_char, 1); + status = edge_write (tty, port, &stop_char, 1); if (status <= 0) { return; } @@ -1430,10 +1429,10 @@ static void edge_throttle (struct usb_serial_port *port) * this function is called by the tty driver when it wants to resume the data * being read from the port (called after SerialThrottle is called) *****************************************************************************/ -static void edge_unthrottle (struct usb_serial_port *port) +static void edge_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty; int status; dbg("%s - port %d", __func__, port->number); @@ -1446,31 +1445,18 @@ static void edge_unthrottle (struct usb_serial_port *port) return; } - tty = port->tty; - if (!tty) { - dbg ("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the start character */ if (I_IXOFF(tty)) { unsigned char start_char = START_CHAR(tty); - status = edge_write (port, &start_char, 1); - if (status <= 0) { + status = edge_write(tty, port, &start_char, 1); + if (status <= 0) return; - } } - /* if we are implementing RTS/CTS, toggle that line */ if (tty->termios->c_cflag & CRTSCTS) { edge_port->shadowMCR |= MCR_RTS; - status = send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR); - if (status != 0) { - return; - } + send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR); } - - return; } @@ -1478,11 +1464,10 @@ static void edge_unthrottle (struct usb_serial_port *port) * SerialSetTermios * this function is called by the tty driver when it wants to change the termios structure *****************************************************************************/ -static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void edge_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { - /* FIXME: This function appears unused ?? */ struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; unsigned int cflag; cflag = tty->termios->c_cflag; @@ -1502,9 +1487,7 @@ static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old } /* change the port settings to the new ones specified */ - change_port_settings (edge_port, old_termios); - - return; + change_port_settings(tty, edge_port, old_termios); } @@ -1536,25 +1519,9 @@ static int get_lsr_info(struct edgeport_port *edge_port, unsigned int __user *va return 0; } -static int get_number_bytes_avail(struct edgeport_port *edge_port, unsigned int __user *value) -{ - unsigned int result = 0; - struct tty_struct *tty = edge_port->port->tty; - - if (!tty) - return -ENOIOCTLCMD; - - result = tty->read_cnt; - - dbg("%s(%d) = %d", __func__, edge_port->port->number, result); - if (copy_to_user(value, &result, sizeof(int))) - return -EFAULT; - //return 0; - return -ENOIOCTLCMD; -} - -static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) +static int edge_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); unsigned int mcr; @@ -1582,8 +1549,9 @@ static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsig return 0; } -static int edge_tiocmget(struct usb_serial_port *port, struct file *file) +static int edge_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); unsigned int result = 0; unsigned int msr; @@ -1624,9 +1592,6 @@ static int get_serial_info(struct edgeport_port *edge_port, struct serial_struct tmp.baud_base = 9600; tmp.close_delay = 5*HZ; tmp.closing_wait = 30*HZ; -// tmp.custom_divisor = state->custom_divisor; -// tmp.hub6 = state->hub6; -// tmp.io_type = state->io_type; if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) return -EFAULT; @@ -1639,8 +1604,10 @@ static int get_serial_info(struct edgeport_port *edge_port, struct serial_struct * SerialIoctl * this function handles any ioctl calls to the driver *****************************************************************************/ -static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) +static int edge_ioctl(struct tty_struct *tty, struct file *file, + unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; DEFINE_WAIT(wait); struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct async_icount cnow; @@ -1650,25 +1617,14 @@ static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd); switch (cmd) { - // return number of bytes available - case TIOCINQ: - dbg("%s (%d) TIOCINQ", __func__, port->number); - return get_number_bytes_avail(edge_port, (unsigned int __user *) arg); - break; - case TIOCSERGETLSR: dbg("%s (%d) TIOCSERGETLSR", __func__, port->number); return get_lsr_info(edge_port, (unsigned int __user *) arg); - return 0; case TIOCGSERIAL: dbg("%s (%d) TIOCGSERIAL", __func__, port->number); return get_serial_info(edge_port, (struct serial_struct __user *) arg); - case TIOCSSERIAL: - dbg("%s (%d) TIOCSSERIAL", __func__, port->number); - break; - case TIOCMIWAIT: dbg("%s (%d) TIOCMIWAIT", __func__, port->number); cprev = edge_port->icount; @@ -1723,8 +1679,9 @@ static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned * SerialBreak * this function sends a break to the port *****************************************************************************/ -static void edge_break (struct usb_serial_port *port, int break_state) +static void edge_break (struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct edgeport_serial *edge_serial = usb_get_serial_data(port->serial); int status; @@ -1866,7 +1823,7 @@ static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned cha port = edge_serial->serial->port[edge_serial->rxPort]; edge_port = usb_get_serial_port_data(port); if (edge_port->open) { - tty = edge_port->port->tty; + tty = edge_port->port->port.tty; if (tty) { dbg("%s - Sending %d bytes to TTY for port %d", __func__, rxLen, edge_serial->rxPort); edge_tty_recv(&edge_serial->serial->dev->dev, tty, buffer, rxLen); @@ -1941,8 +1898,9 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2 handle_new_msr (edge_port, byte2); /* send the current line settings to the port so we are in sync with any further termios calls */ - if (edge_port->port->tty) - change_port_settings (edge_port, edge_port->port->tty->termios); + /* FIXME: locking on tty */ + if (edge_port->port->port.tty) + change_port_settings(edge_port->port->port.tty, edge_port, edge_port->port->port.tty->termios); /* we have completed the open */ edge_port->openPending = false; @@ -2078,8 +2036,8 @@ static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, __u8 l } /* Place LSR data byte into Rx buffer */ - if (lsrData && edge_port->port->tty) - edge_tty_recv(&edge_port->port->dev, edge_port->port->tty, &data, 1); + if (lsrData && edge_port->port->port.tty) + edge_tty_recv(&edge_port->port->dev, edge_port->port->port.tty, &data, 1); /* update input line counters */ icount = &edge_port->icount; @@ -2473,13 +2431,11 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r * This routine is called to set the UART on the device to match the specified * new settings. *****************************************************************************/ -#ifndef CMSPAR -#define CMSPAR 0 -#endif -static void change_port_settings (struct edgeport_port *edge_port, struct ktermios *old_termios) + +static void change_port_settings(struct tty_struct *tty, + struct edgeport_port *edge_port, struct ktermios *old_termios) { struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial); - struct tty_struct *tty; int baud; unsigned cflag; __u8 mask = 0xff; @@ -2498,13 +2454,6 @@ static void change_port_settings (struct edgeport_port *edge_port, struct ktermi return; } - tty = edge_port->port->tty; - if ((!tty) || - (!tty->termios)) { - dbg("%s - no tty structures", __func__); - return; - } - cflag = tty->termios->c_cflag; switch (cflag & CSIZE) { diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index a58822a14a87..7cf383a2a556 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -243,9 +243,9 @@ static void edge_tty_recv(struct device *dev, struct tty_struct *tty, static void stop_read(struct edgeport_port *edge_port); static int restart_read(struct edgeport_port *edge_port); -static void edge_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios); -static void edge_send(struct usb_serial_port *port); +static void edge_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios); +static void edge_send(struct tty_struct *tty); /* sysfs attributes */ static int edge_create_sysfs_attrs(struct usb_serial_port *port); @@ -572,7 +572,7 @@ static void chase_port(struct edgeport_port *port, unsigned long timeout, int flush) { int baud_rate; - struct tty_struct *tty = port->port->tty; + struct tty_struct *tty = port->port->port.tty; wait_queue_t wait; unsigned long flags; @@ -1554,7 +1554,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) /* Save the new modem status */ edge_port->shadow_msr = msr & 0xf0; - tty = edge_port->port->tty; + tty = edge_port->port->port.tty; /* handle CTS flow control */ if (tty && C_CRTSCTS(tty)) { if (msr & EDGEPORT_MSR_CTS) { @@ -1587,9 +1587,8 @@ static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); /* Place LSR data byte into Rx buffer */ - if (lsr_data && edge_port->port->tty) - edge_tty_recv(&edge_port->port->dev, edge_port->port->tty, - &data, 1); + if (lsr_data && edge_port->port->port.tty) + edge_tty_recv(&edge_port->port->dev, edge_port->port->port.tty, &data, 1); /* update input line counters */ icount = &edge_port->icount; @@ -1750,7 +1749,7 @@ static void edge_bulk_in_callback(struct urb *urb) ++data; } - tty = edge_port->port->tty; + tty = edge_port->port->port.tty; if (tty && urb->actual_length) { usb_serial_debug_data(debug, &edge_port->port->dev, __func__, urb->actual_length, data); @@ -1819,10 +1818,11 @@ static void edge_bulk_out_callback(struct urb *urb) } /* send any buffered data */ - edge_send(port); + edge_send(port->port.tty); } -static int edge_open(struct usb_serial_port *port, struct file *filp) +static int edge_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct edgeport_serial *edge_serial; @@ -1838,7 +1838,8 @@ static int edge_open(struct usb_serial_port *port, struct file *filp) if (edge_port == NULL) return -ENODEV; - port->tty->low_latency = low_latency; + if (tty) + tty->low_latency = low_latency; port_number = port->number - port->serial->minor; switch (port_number) { @@ -1874,7 +1875,8 @@ static int edge_open(struct usb_serial_port *port, struct file *filp) } /* set up the port settings */ - edge_set_termios(port, port->tty->termios); + if (tty) + edge_set_termios(tty, port, port->port.tty->termios); /* open up the port */ @@ -2000,7 +2002,8 @@ release_es_lock: return status; } -static void edge_close(struct usb_serial_port *port, struct file *filp) +static void edge_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct edgeport_serial *edge_serial; struct edgeport_port *edge_port; @@ -2048,8 +2051,8 @@ static void edge_close(struct usb_serial_port *port, struct file *filp) dbg("%s - exited", __func__); } -static int edge_write(struct usb_serial_port *port, const unsigned char *data, - int count) +static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *data, int count) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); unsigned long flags; @@ -2070,16 +2073,16 @@ static int edge_write(struct usb_serial_port *port, const unsigned char *data, count = edge_buf_put(edge_port->ep_out_buf, data, count); spin_unlock_irqrestore(&edge_port->ep_lock, flags); - edge_send(port); + edge_send(tty); return count; } -static void edge_send(struct usb_serial_port *port) +static void edge_send(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int count, result; struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; unsigned long flags; @@ -2133,8 +2136,9 @@ static void edge_send(struct usb_serial_port *port) tty_wakeup(tty); } -static int edge_write_room(struct usb_serial_port *port) +static int edge_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); int room = 0; unsigned long flags; @@ -2154,8 +2158,9 @@ static int edge_write_room(struct usb_serial_port *port) return room; } -static int edge_chars_in_buffer(struct usb_serial_port *port) +static int edge_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); int chars = 0; unsigned long flags; @@ -2175,10 +2180,10 @@ static int edge_chars_in_buffer(struct usb_serial_port *port) return chars; } -static void edge_throttle(struct usb_serial_port *port) +static void edge_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; int status; dbg("%s - port %d", __func__, port->number); @@ -2189,11 +2194,10 @@ static void edge_throttle(struct usb_serial_port *port) /* if we are implementing XON/XOFF, send the stop character */ if (I_IXOFF(tty)) { unsigned char stop_char = STOP_CHAR(tty); - status = edge_write(port, &stop_char, 1); - if (status <= 0) - dev_err(&port->dev, - "%s - failed to write stop character, %d\n", - __func__, status); + status = edge_write(tty, port, &stop_char, 1); + if (status <= 0) { + dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); + } } /* if we are implementing RTS/CTS, stop reads */ @@ -2203,10 +2207,10 @@ static void edge_throttle(struct usb_serial_port *port) } -static void edge_unthrottle(struct usb_serial_port *port) +static void edge_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; int status; dbg("%s - port %d", __func__, port->number); @@ -2217,11 +2221,10 @@ static void edge_unthrottle(struct usb_serial_port *port) /* if we are implementing XON/XOFF, send the start character */ if (I_IXOFF(tty)) { unsigned char start_char = START_CHAR(tty); - status = edge_write(port, &start_char, 1); - if (status <= 0) - dev_err(&port->dev, - "%s - failed to write start character, %d\n", - __func__, status); + status = edge_write(tty, port, &start_char, 1); + if (status <= 0) { + dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); + } } /* if we are implementing RTS/CTS, restart reads */ /* are the Edgeport will assert the RTS line */ @@ -2271,11 +2274,10 @@ static int restart_read(struct edgeport_port *edge_port) return status; } -static void change_port_settings(struct edgeport_port *edge_port, - struct ktermios *old_termios) +static void change_port_settings(struct tty_struct *tty, + struct edgeport_port *edge_port, struct ktermios *old_termios) { struct ump_uart_config *config; - struct tty_struct *tty; int baud; unsigned cflag; int status; @@ -2284,9 +2286,7 @@ static void change_port_settings(struct edgeport_port *edge_port, dbg("%s - port %d", __func__, edge_port->port->number); - tty = edge_port->port->tty; - - config = kmalloc(sizeof(*config), GFP_KERNEL); + config = kmalloc (sizeof (*config), GFP_KERNEL); if (!config) { *tty->termios = *old_termios; dev_err(&edge_port->port->dev, "%s - out of memory\n", @@ -2419,11 +2419,13 @@ static void change_port_settings(struct edgeport_port *edge_port, return; } -static void edge_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void edge_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; + unsigned int cflag; + + cflag = tty->termios->c_cflag; dbg("%s - clfag %08x iflag %08x", __func__, tty->termios->c_cflag, tty->termios->c_iflag); @@ -2434,12 +2436,14 @@ static void edge_set_termios(struct usb_serial_port *port, if (edge_port == NULL) return; /* change the port settings to the new ones specified */ - change_port_settings(edge_port, old_termios); + change_port_settings(tty, edge_port, old_termios); + return; } -static int edge_tiocmset(struct usb_serial_port *port, struct file *file, +static int edge_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); unsigned int mcr; unsigned long flags; @@ -2469,8 +2473,9 @@ static int edge_tiocmset(struct usb_serial_port *port, struct file *file, return 0; } -static int edge_tiocmget(struct usb_serial_port *port, struct file *file) +static int edge_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); unsigned int result = 0; unsigned int msr; @@ -2522,9 +2527,10 @@ static int get_serial_info(struct edgeport_port *edge_port, return 0; } -static int edge_ioctl(struct usb_serial_port *port, struct file *file, +static int edge_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct async_icount cnow; struct async_icount cprev; @@ -2569,18 +2575,19 @@ static int edge_ioctl(struct usb_serial_port *port, struct file *file, return -ENOIOCTLCMD; } -static void edge_break(struct usb_serial_port *port, int on) +static void edge_break(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); int status; int bv = 0; /* Off */ - dbg("%s - state = %d", __func__, on); + dbg("%s - state = %d", __func__, break_state); /* chase the port close */ chase_port(edge_port, 0, 0); - if (on == -1) + if (break_state == -1) bv = 1; /* On */ status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); if (status) diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 80d9ec5570d6..a7784642d6a1 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -74,19 +74,21 @@ static int connect_retries = KP_RETRIES; static int initial_wait; /* Function prototypes for an ipaq */ -static int ipaq_open (struct usb_serial_port *port, struct file *filp); -static void ipaq_close (struct usb_serial_port *port, struct file *filp); -static int ipaq_startup (struct usb_serial *serial); -static void ipaq_shutdown (struct usb_serial *serial); -static int ipaq_write(struct usb_serial_port *port, const unsigned char *buf, - int count); +static int ipaq_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static void ipaq_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static int ipaq_startup(struct usb_serial *serial); +static void ipaq_shutdown(struct usb_serial *serial); +static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count); static int ipaq_write_bulk(struct usb_serial_port *port, const unsigned char *buf, - int count); + int count); static void ipaq_write_gather(struct usb_serial_port *port); static void ipaq_read_bulk_callback (struct urb *urb); static void ipaq_write_bulk_callback(struct urb *urb); -static int ipaq_write_room(struct usb_serial_port *port); -static int ipaq_chars_in_buffer(struct usb_serial_port *port); +static int ipaq_write_room(struct tty_struct *tty); +static int ipaq_chars_in_buffer(struct tty_struct *tty); static void ipaq_destroy_lists(struct usb_serial_port *port); @@ -591,7 +593,8 @@ static spinlock_t write_list_lock; static int bytes_in; static int bytes_out; -static int ipaq_open(struct usb_serial_port *port, struct file *filp) +static int ipaq_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; struct ipaq_private *priv; @@ -637,10 +640,12 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp) * discipline instead of queueing. */ - port->tty->low_latency = 1; - port->tty->raw = 1; - port->tty->real_raw = 1; - + if (tty) { + tty->low_latency = 1; + /* FIXME: These two are bogus */ + tty->raw = 1; + tty->real_raw = 1; + } /* * Lose the small buffers usbserial provides. Make larger ones. */ @@ -714,7 +719,8 @@ error: } -static void ipaq_close(struct usb_serial_port *port, struct file *filp) +static void ipaq_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct ipaq_private *priv = usb_get_serial_port_data(port); @@ -751,7 +757,7 @@ static void ipaq_read_bulk_callback(struct urb *urb) usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -770,8 +776,8 @@ static void ipaq_read_bulk_callback(struct urb *urb) return; } -static int ipaq_write(struct usb_serial_port *port, const unsigned char *buf, - int count) +static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { const unsigned char *current_position = buf; int bytes_sent = 0; @@ -905,16 +911,18 @@ static void ipaq_write_bulk_callback(struct urb *urb) usb_serial_port_softint(port); } -static int ipaq_write_room(struct usb_serial_port *port) +static int ipaq_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ipaq_private *priv = usb_get_serial_port_data(port); dbg("%s - freelen %d", __func__, priv->free_len); return priv->free_len; } -static int ipaq_chars_in_buffer(struct usb_serial_port *port) +static int ipaq_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ipaq_private *priv = usb_get_serial_port_data(port); dbg("%s - queuelen %d", __func__, priv->queue_len); diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index bc85ca5c1c37..a89ebfe9e915 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -179,7 +179,7 @@ static void ipw_read_bulk_callback(struct urb *urb) usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -199,7 +199,8 @@ static void ipw_read_bulk_callback(struct urb *urb) return; } -static int ipw_open(struct usb_serial_port *port, struct file *filp) +static int ipw_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_device *dev = port->serial->dev; u8 buf_flow_static[16] = IPW_BYTES_FLOWINIT; @@ -212,8 +213,8 @@ static int ipw_open(struct usb_serial_port *port, struct file *filp) if (!buf_flow_init) return -ENOMEM; - if (port->tty) - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; /* --1: Tell the modem to initialize (we think) From sniffs this is always the * first thing that gets sent to the modem during opening of the device */ @@ -301,7 +302,8 @@ static int ipw_open(struct usb_serial_port *port, struct file *filp) return 0; } -static void ipw_close(struct usb_serial_port *port, struct file * filp) +static void ipw_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct usb_device *dev = port->serial->dev; int result; @@ -384,7 +386,8 @@ static void ipw_write_bulk_callback(struct urb *urb) usb_serial_port_softint(port); } -static int ipw_write(struct usb_serial_port *port, const unsigned char *buf, int count) +static int ipw_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { struct usb_device *dev = port->serial->dev; int ret; diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 0063c11c8081..e59155c6607d 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -85,15 +85,17 @@ static int buffer_size; /* if overridden by the user, then use the specified number of XBOFs */ static int xbof = -1; -static int ir_startup(struct usb_serial *serial); -static int ir_open(struct usb_serial_port *port, struct file *filep); -static void ir_close(struct usb_serial_port *port, struct file *filep); -static int ir_write(struct usb_serial_port *port, - const unsigned char *buf, int count); -static void ir_write_bulk_callback(struct urb *urb); -static void ir_read_bulk_callback(struct urb *urb); -static void ir_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios); +static int ir_startup (struct usb_serial *serial); +static int ir_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filep); +static void ir_close(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filep); +static int ir_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count); +static void ir_write_bulk_callback (struct urb *urb); +static void ir_read_bulk_callback (struct urb *urb); +static void ir_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios); /* Not that this lot means you can only have one per system */ static u8 ir_baud; @@ -295,7 +297,8 @@ static int ir_startup(struct usb_serial *serial) return 0; } -static int ir_open(struct usb_serial_port *port, struct file *filp) +static int ir_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { char *buffer; int result = 0; @@ -343,7 +346,8 @@ static int ir_open(struct usb_serial_port *port, struct file *filp) return result; } -static void ir_close(struct usb_serial_port *port, struct file *filp) +static void ir_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { dbg("%s - port %d", __func__, port->number); @@ -351,8 +355,8 @@ static void ir_close(struct usb_serial_port *port, struct file *filp) usb_kill_urb(port->read_urb); } -static int ir_write(struct usb_serial_port *port, - const unsigned char *buf, int count) +static int ir_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { unsigned char *transfer_buffer; int result; @@ -360,11 +364,6 @@ static int ir_write(struct usb_serial_port *port, dbg("%s - port = %d, count = %d", __func__, port->number, count); - if (!port->tty) { - dev_err(&port->dev, "%s - no tty???\n", __func__); - return 0; - } - if (count == 0) return 0; @@ -450,14 +449,13 @@ static void ir_read_bulk_callback(struct urb *urb) dbg("%s - port %d", __func__, port->number); - if (!port->open_count) { + if (!port->port.count) { dbg("%s - port closed.", __func__); return; } switch (status) { case 0: /* Successful */ - /* * The first byte of the packet we get from the device * contains a busy indicator and baud rate change. @@ -465,19 +463,11 @@ static void ir_read_bulk_callback(struct urb *urb) */ if ((*data & 0x0f) > 0) ir_baud = *data & 0x0f; - - usb_serial_debug_data( - debug, - &port->dev, - __func__, - urb->actual_length, - data); - - tty = port->tty; - + usb_serial_debug_data(debug, &port->dev, __func__, + urb->actual_length, data); + tty = port->port.tty; if (tty_buffer_request_room(tty, urb->actual_length - 1)) { - tty_insert_flip_string(tty, data + 1, - urb->actual_length - 1); + tty_insert_flip_string(tty, data+1, urb->actual_length - 1); tty_flip_buffer_push(tty); } @@ -488,11 +478,10 @@ static void ir_read_bulk_callback(struct urb *urb) */ case -EPROTO: /* taking inspiration from pl2303.c */ - - /* Continue trying to always read */ + /* Continue trying to always read */ usb_fill_bulk_urb( port->read_urb, - port->serial->dev, + port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), port->read_urb->transfer_buffer, @@ -502,23 +491,19 @@ static void ir_read_bulk_callback(struct urb *urb) result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) - dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", + dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __func__, result); - break; - + break ; default: dbg("%s - nonzero read bulk status received: %d", - __func__, - status); - break; + __func__, status); + break ; } - return; } -static void ir_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void ir_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { unsigned char *transfer_buffer; int result; @@ -527,7 +512,7 @@ static void ir_set_termios(struct usb_serial_port *port, dbg("%s - port %d", __func__, port->number); - baud = tty_get_baud_rate(port->tty); + baud = tty_get_baud_rate(tty); /* * FIXME, we should compare the baud request against the @@ -600,8 +585,8 @@ static void ir_set_termios(struct usb_serial_port *port, __func__, result); /* Only speed changes are supported */ - tty_termios_copy_hw(port->tty->termios, old_termios); - tty_encode_baud_rate(port->tty, baud, baud); + tty_termios_copy_hw(tty->termios, old_termios); + tty_encode_baud_rate(tty, baud, baud); } static int __init ir_init(void) diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index a01e987c7d32..d65414888349 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -144,9 +144,10 @@ static void iuu_shutdown(struct usb_serial *serial) } } -static int iuu_tiocmset(struct usb_serial_port *port, struct file *file, +static int iuu_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -171,8 +172,9 @@ static int iuu_tiocmset(struct usb_serial_port *port, struct file *file, * When no card , the reader respond with TIOCM_CD * This is known as CD autodetect mechanism */ -static int iuu_tiocmget(struct usb_serial_port *port, struct file *file) +static int iuu_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; int rc; @@ -630,7 +632,7 @@ static void read_buf_callback(struct urb *urb) } dbg("%s - %i chars to write", __func__, urb->actual_length); - tty = port->tty; + tty = port->port.tty; if (data == NULL) dbg("%s - data is NULL !!!", __func__); if (tty && urb->actual_length && data) { @@ -752,11 +754,10 @@ static void iuu_uart_read_callback(struct urb *urb) /* if nothing to write call again rxcmd */ dbg("%s - rxcmd recall", __func__); iuu_led_activity_off(urb); - return; } -static int iuu_uart_write(struct usb_serial_port *port, const u8 *buf, - int count) +static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port, + const u8 *buf, int count) { struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -948,7 +949,8 @@ static int set_control_lines(struct usb_device *dev, u8 value) return 0; } -static void iuu_close(struct usb_serial_port *port, struct file *filp) +static void iuu_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { /* iuu_led (port,255,0,0,0); */ struct usb_serial *serial; @@ -964,8 +966,8 @@ static void iuu_close(struct usb_serial_port *port, struct file *filp) iuu_uart_off(port); if (serial->dev) { - if (port->tty) { - c_cflag = port->tty->termios->c_cflag; + if (tty) { + c_cflag = tty->termios->c_cflag; if (c_cflag & HUPCL) { /* drop DTR and RTS */ priv = usb_get_serial_port_data(port); @@ -989,7 +991,8 @@ static void iuu_close(struct usb_serial_port *port, struct file *filp) } } -static int iuu_open(struct usb_serial_port *port, struct file *filp) +static int iuu_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; u8 *buf; @@ -1036,15 +1039,17 @@ static int iuu_open(struct usb_serial_port *port, struct file *filp) /* set the termios structure */ spin_lock_irqsave(&priv->lock, flags); - if (!priv->termios_initialized) { - *(port->tty->termios) = tty_std_termios; - port->tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600 - | TIOCM_CTS | CSTOPB | PARENB; - port->tty->termios->c_lflag = 0; - port->tty->termios->c_oflag = 0; - port->tty->termios->c_iflag = 0; + if (tty && !priv->termios_initialized) { + *(tty->termios) = tty_std_termios; + tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600 + | TIOCM_CTS | CSTOPB | PARENB; + tty->termios->c_ispeed = 9600; + tty->termios->c_ospeed = 9600; + tty->termios->c_lflag = 0; + tty->termios->c_oflag = 0; + tty->termios->c_iflag = 0; priv->termios_initialized = 1; - port->tty->low_latency = 1; + tty->low_latency = 1; priv->poll = 0; } spin_unlock_irqrestore(&priv->lock, flags); @@ -1148,7 +1153,7 @@ static int iuu_open(struct usb_serial_port *port, struct file *filp) if (result) { dev_err(&port->dev, "%s - failed submitting read urb," " error %d\n", __func__, result); - iuu_close(port, NULL); + iuu_close(tty, port, NULL); return -EPROTO; } else { dbg("%s - rxcmd OK", __func__); diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 11e439b90eac..a371c41bb3ab 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -244,20 +244,9 @@ static void __exit keyspan_exit (void) module_init(keyspan_init); module_exit(keyspan_exit); -static void keyspan_rx_throttle (struct usb_serial_port *port) -{ - dbg("%s - port %d", __func__, port->number); -} - - -static void keyspan_rx_unthrottle (struct usb_serial_port *port) -{ - dbg("%s - port %d", __func__, port->number); -} - - -static void keyspan_break_ctl (struct usb_serial_port *port, int break_state) +static void keyspan_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct keyspan_port_private *p_priv; dbg("%s", __func__); @@ -273,14 +262,13 @@ static void keyspan_break_ctl (struct usb_serial_port *port, int break_state) } -static void keyspan_set_termios (struct usb_serial_port *port, - struct ktermios *old_termios) +static void keyspan_set_termios (struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { int baud_rate, device_port; struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; unsigned int cflag; - struct tty_struct *tty = port->tty; dbg("%s", __func__); @@ -312,12 +300,11 @@ static void keyspan_set_termios (struct usb_serial_port *port, keyspan_send_setup(port, 0); } -static int keyspan_tiocmget(struct usb_serial_port *port, struct file *file) +static int keyspan_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; + struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); unsigned int value; - struct keyspan_port_private *p_priv; - - p_priv = usb_get_serial_port_data(port); value = ((p_priv->rts_state) ? TIOCM_RTS : 0) | ((p_priv->dtr_state) ? TIOCM_DTR : 0) | @@ -329,18 +316,16 @@ static int keyspan_tiocmget(struct usb_serial_port *port, struct file *file) return value; } -static int keyspan_tiocmset(struct usb_serial_port *port, struct file *file, +static int keyspan_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { - struct keyspan_port_private *p_priv; - - p_priv = usb_get_serial_port_data(port); + struct usb_serial_port *port = tty->driver_data; + struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); if (set & TIOCM_RTS) p_priv->rts_state = 1; if (set & TIOCM_DTR) p_priv->dtr_state = 1; - if (clear & TIOCM_RTS) p_priv->rts_state = 0; if (clear & TIOCM_DTR) @@ -349,16 +334,10 @@ static int keyspan_tiocmset(struct usb_serial_port *port, struct file *file, return 0; } -static int keyspan_ioctl(struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return -ENOIOCTLCMD; -} - - /* Write function is similar for the four protocols used - with only a minor change for usa90 (usa19hs) required */ -static int keyspan_write(struct usb_serial_port *port, - const unsigned char *buf, int count) +/* Write function is similar for the four protocols used + with only a minor change for usa90 (usa19hs) required */ +static int keyspan_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count) { struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; @@ -448,7 +427,7 @@ static void usa26_indat_callback(struct urb *urb) } port = urb->context; - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { /* 0x80 bit is error flag */ if ((data[0] & 0x80) == 0) { @@ -479,7 +458,7 @@ static void usa26_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->open_count) + if (port->port.count) if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __func__, err); } @@ -496,7 +475,7 @@ static void usa2x_outdat_callback(struct urb *urb) p_priv = usb_get_serial_port_data(port); dbg ("%s - urb %d", __func__, urb == p_priv->out_urbs[1]); - if (port->open_count) + if (port->port.count) usb_serial_port_softint(port); } @@ -567,10 +546,10 @@ static void usa26_instat_callback(struct urb *urb) p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); p_priv->ri_state = ((msg->ri) ? 1 : 0); - if (port->tty && !C_CLOCAL(port->tty) + if (port->port.tty && !C_CLOCAL(port->port.tty) && old_dcd_state != p_priv->dcd_state) { if (old_dcd_state) - tty_hangup(port->tty); + tty_hangup(port->port.tty); /* else */ /* wake_up_interruptible(&p_priv->open_wait); */ } @@ -619,7 +598,7 @@ static void usa28_indat_callback(struct urb *urb) p_priv = usb_get_serial_port_data(port); data = urb->transfer_buffer; - tty = port->tty; + tty = port->port.tty; if (urb->actual_length) { for (i = 0; i < urb->actual_length ; ++i) { tty_insert_flip_char(tty, data[i], 0); @@ -629,7 +608,7 @@ static void usa28_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->open_count) + if (port->port.count) if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __func__, err); } @@ -704,10 +683,10 @@ static void usa28_instat_callback(struct urb *urb) p_priv->dcd_state = ((msg->dcd) ? 1 : 0); p_priv->ri_state = ((msg->ri) ? 1 : 0); - if (port->tty && !C_CLOCAL(port->tty) + if (port->port.tty && !C_CLOCAL(port->port.tty) && old_dcd_state != p_priv->dcd_state) { if (old_dcd_state) - tty_hangup(port->tty); + tty_hangup(port->port.tty); /* else */ /* wake_up_interruptible(&p_priv->open_wait); */ } @@ -797,10 +776,10 @@ static void usa49_instat_callback(struct urb *urb) p_priv->dcd_state = ((msg->dcd) ? 1 : 0); p_priv->ri_state = ((msg->ri) ? 1 : 0); - if (port->tty && !C_CLOCAL(port->tty) + if (port->port.tty && !C_CLOCAL(port->port.tty) && old_dcd_state != p_priv->dcd_state) { if (old_dcd_state) - tty_hangup(port->tty); + tty_hangup(port->port.tty); /* else */ /* wake_up_interruptible(&p_priv->open_wait); */ } @@ -839,7 +818,7 @@ static void usa49_indat_callback(struct urb *urb) } port = urb->context; - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { /* 0x80 bit is error flag */ if ((data[0] & 0x80) == 0) { @@ -866,7 +845,7 @@ static void usa49_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->open_count) + if (port->port.count) if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __func__, err); } @@ -904,7 +883,7 @@ static void usa49wg_indat_callback(struct urb *urb) return; } port = serial->port[data[i++]]; - tty = port->tty; + tty = port->port.tty; len = data[i++]; /* 0x80 bit is error flag */ @@ -912,7 +891,7 @@ static void usa49wg_indat_callback(struct urb *urb) /* no error on any byte */ i++; for (x = 1; x < len ; ++x) - if (port->open_count) + if (port->port.count) tty_insert_flip_char(tty, data[i++], 0); else @@ -930,13 +909,13 @@ static void usa49wg_indat_callback(struct urb *urb) if (stat & RXERROR_PARITY) flag |= TTY_PARITY; /* XXX should handle break (0x10) */ - if (port->open_count) + if (port->port.count) tty_insert_flip_char(tty, data[i+1], flag); i += 2; } } - if (port->open_count) + if (port->port.count) tty_flip_buffer_push(tty); } } @@ -978,7 +957,7 @@ static void usa90_indat_callback(struct urb *urb) port = urb->context; p_priv = usb_get_serial_port_data(port); - tty = port->tty; + tty = port->port.tty; if (urb->actual_length) { /* if current mode is DMA, looks like usa28 format @@ -1021,7 +1000,7 @@ static void usa90_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->open_count) + if (port->port.count) if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __func__, err); } @@ -1064,10 +1043,10 @@ static void usa90_instat_callback(struct urb *urb) p_priv->dcd_state = ((msg->dcd) ? 1 : 0); p_priv->ri_state = ((msg->ri) ? 1 : 0); - if (port->tty && !C_CLOCAL(port->tty) + if (port->port.tty && !C_CLOCAL(port->port.tty) && old_dcd_state != p_priv->dcd_state) { if (old_dcd_state) - tty_hangup(port->tty); + tty_hangup(port->port.tty); /* else */ /* wake_up_interruptible(&p_priv->open_wait); */ } @@ -1139,10 +1118,10 @@ static void usa67_instat_callback(struct urb *urb) p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0); p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); - if (port->tty && !C_CLOCAL(port->tty) + if (port->port.tty && !C_CLOCAL(port->port.tty) && old_dcd_state != p_priv->dcd_state) { if (old_dcd_state) - tty_hangup(port->tty); + tty_hangup(port->port.tty); /* else */ /* wake_up_interruptible(&p_priv->open_wait); */ } @@ -1177,8 +1156,9 @@ static void usa67_glocont_callback(struct urb *urb) } } -static int keyspan_write_room (struct usb_serial_port *port) +static int keyspan_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; int flip; @@ -1210,13 +1190,8 @@ static int keyspan_write_room (struct usb_serial_port *port) } -static int keyspan_chars_in_buffer (struct usb_serial_port *port) -{ - return 0; -} - - -static int keyspan_open (struct usb_serial_port *port, struct file *filp) +static int keyspan_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct keyspan_port_private *p_priv; struct keyspan_serial_private *s_priv; @@ -1225,7 +1200,7 @@ static int keyspan_open (struct usb_serial_port *port, struct file *filp) int i, err; int baud_rate, device_port; struct urb *urb; - unsigned int cflag; + unsigned int cflag = 0; s_priv = usb_get_serial_data(serial); p_priv = usb_get_serial_port_data(port); @@ -1271,19 +1246,19 @@ static int keyspan_open (struct usb_serial_port *port, struct file *filp) /* get the terminal config for the setup message now so we don't * need to send 2 of them */ - cflag = port->tty->termios->c_cflag; device_port = port->number - port->serial->minor; - - /* Baud rate calculation takes baud rate as an integer - so other rates can be generated if desired. */ - baud_rate = tty_get_baud_rate(port->tty); - /* If no match or invalid, leave as default */ - if (baud_rate >= 0 - && d_details->calculate_baud_rate(baud_rate, d_details->baudclk, - NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { - p_priv->baud = baud_rate; + if (tty) { + cflag = tty->termios->c_cflag; + /* Baud rate calculation takes baud rate as an integer + so other rates can be generated if desired. */ + baud_rate = tty_get_baud_rate(tty); + /* If no match or invalid, leave as default */ + if (baud_rate >= 0 + && d_details->calculate_baud_rate(baud_rate, d_details->baudclk, + NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { + p_priv->baud = baud_rate; + } } - /* set CTS/RTS handshake etc. */ p_priv->cflag = cflag; p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none; @@ -1301,7 +1276,8 @@ static inline void stop_urb(struct urb *urb) usb_kill_urb(urb); } -static void keyspan_close(struct usb_serial_port *port, struct file *filp) +static void keyspan_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { int i; struct usb_serial *serial = port->serial; @@ -1338,7 +1314,7 @@ static void keyspan_close(struct usb_serial_port *port, struct file *filp) stop_urb(p_priv->out_urbs[i]); } } - port->tty = NULL; + port->port.tty = NULL; } /* download the firmware to a pre-renumeration device */ @@ -2427,7 +2403,7 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial, } /* Sending intermediate configs */ else { - if (port->open_count) + if (port->port.count) msg.portEnabled = 1; msg.txBreak = (p_priv->break_on); } diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h index 8bf72639b148..38b4582e0734 100644 --- a/drivers/usb/serial/keyspan.h +++ b/drivers/usb/serial/keyspan.h @@ -35,17 +35,18 @@ /* Function prototypes for Keyspan serial converter */ -static int keyspan_open (struct usb_serial_port *port, +static int keyspan_open (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); -static void keyspan_close (struct usb_serial_port *port, +static void keyspan_close (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); static int keyspan_startup (struct usb_serial *serial); static void keyspan_shutdown (struct usb_serial *serial); -static void keyspan_rx_throttle (struct usb_serial_port *port); -static void keyspan_rx_unthrottle (struct usb_serial_port *port); -static int keyspan_write_room (struct usb_serial_port *port); +static int keyspan_write_room (struct tty_struct *tty); -static int keyspan_write (struct usb_serial_port *port, +static int keyspan_write (struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count); @@ -53,18 +54,14 @@ static void keyspan_send_setup (struct usb_serial_port *port, int reset_port); -static int keyspan_chars_in_buffer (struct usb_serial_port *port); -static int keyspan_ioctl (struct usb_serial_port *port, - struct file *file, - unsigned int cmd, - unsigned long arg); -static void keyspan_set_termios (struct usb_serial_port *port, +static void keyspan_set_termios (struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old); -static void keyspan_break_ctl (struct usb_serial_port *port, +static void keyspan_break_ctl (struct tty_struct *tty, int break_state); -static int keyspan_tiocmget (struct usb_serial_port *port, +static int keyspan_tiocmget (struct tty_struct *tty, struct file *file); -static int keyspan_tiocmset (struct usb_serial_port *port, +static int keyspan_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); static int keyspan_fake_startup (struct usb_serial *serial); @@ -567,10 +564,6 @@ static struct usb_serial_driver keyspan_1port_device = { .close = keyspan_close, .write = keyspan_write, .write_room = keyspan_write_room, - .chars_in_buffer = keyspan_chars_in_buffer, - .throttle = keyspan_rx_throttle, - .unthrottle = keyspan_rx_unthrottle, - .ioctl = keyspan_ioctl, .set_termios = keyspan_set_termios, .break_ctl = keyspan_break_ctl, .tiocmget = keyspan_tiocmget, @@ -591,10 +584,6 @@ static struct usb_serial_driver keyspan_2port_device = { .close = keyspan_close, .write = keyspan_write, .write_room = keyspan_write_room, - .chars_in_buffer = keyspan_chars_in_buffer, - .throttle = keyspan_rx_throttle, - .unthrottle = keyspan_rx_unthrottle, - .ioctl = keyspan_ioctl, .set_termios = keyspan_set_termios, .break_ctl = keyspan_break_ctl, .tiocmget = keyspan_tiocmget, @@ -615,10 +604,6 @@ static struct usb_serial_driver keyspan_4port_device = { .close = keyspan_close, .write = keyspan_write, .write_room = keyspan_write_room, - .chars_in_buffer = keyspan_chars_in_buffer, - .throttle = keyspan_rx_throttle, - .unthrottle = keyspan_rx_unthrottle, - .ioctl = keyspan_ioctl, .set_termios = keyspan_set_termios, .break_ctl = keyspan_break_ctl, .tiocmget = keyspan_tiocmget, diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 60b3e22bd633..24a08ac2e4ee 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -171,7 +171,7 @@ static void keyspan_pda_wakeup_write(struct work_struct *work) container_of(work, struct keyspan_pda_private, wakeup_work); struct usb_serial_port *port = priv->port; - tty_wakeup(port->tty); + tty_wakeup(port->port.tty); } static void keyspan_pda_request_unthrottle(struct work_struct *work) @@ -203,7 +203,7 @@ static void keyspan_pda_request_unthrottle(struct work_struct *work) static void keyspan_pda_rx_interrupt (struct urb *urb) { struct usb_serial_port *port = urb->context; - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; unsigned char *data = urb->transfer_buffer; int i; int retval; @@ -266,7 +266,7 @@ exit: } -static void keyspan_pda_rx_throttle (struct usb_serial_port *port) +static void keyspan_pda_rx_throttle(struct tty_struct *tty) { /* stop receiving characters. We just turn off the URB request, and let chars pile up in the device. If we're doing hardware @@ -274,14 +274,15 @@ static void keyspan_pda_rx_throttle (struct usb_serial_port *port) fills up. If we're doing XON/XOFF, this would be a good time to send an XOFF, although it might make sense to foist that off upon the device too. */ - + struct usb_serial_port *port = tty->driver_data; dbg("keyspan_pda_rx_throttle port %d", port->number); usb_kill_urb(port->interrupt_in_urb); } -static void keyspan_pda_rx_unthrottle (struct usb_serial_port *port) +static void keyspan_pda_rx_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; /* just restart the receive interrupt URB */ dbg("keyspan_pda_rx_unthrottle port %d", port->number); port->interrupt_in_urb->dev = port->serial->dev; @@ -330,8 +331,9 @@ static speed_t keyspan_pda_setbaud (struct usb_serial *serial, speed_t baud) } -static void keyspan_pda_break_ctl (struct usb_serial_port *port, int break_state) +static void keyspan_pda_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; int value; int result; @@ -354,8 +356,8 @@ static void keyspan_pda_break_ctl (struct usb_serial_port *port, int break_state } -static void keyspan_pda_set_termios (struct usb_serial_port *port, - struct ktermios *old_termios) +static void keyspan_pda_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct usb_serial *serial = port->serial; speed_t speed; @@ -380,7 +382,7 @@ static void keyspan_pda_set_termios (struct usb_serial_port *port, For now, just do baud. */ - speed = tty_get_baud_rate(port->tty); + speed = tty_get_baud_rate(tty); speed = keyspan_pda_setbaud(serial, speed); if (speed == 0) { @@ -390,8 +392,8 @@ static void keyspan_pda_set_termios (struct usb_serial_port *port, } /* Only speed can change so copy the old h/w parameters then encode the new speed */ - tty_termios_copy_hw(port->tty->termios, old_termios); - tty_encode_baud_rate(port->tty, speed, speed); + tty_termios_copy_hw(tty->termios, old_termios); + tty_encode_baud_rate(tty, speed, speed); } @@ -425,8 +427,9 @@ static int keyspan_pda_set_modem_info(struct usb_serial *serial, return rc; } -static int keyspan_pda_tiocmget(struct usb_serial_port *port, struct file *file) +static int keyspan_pda_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; int rc; unsigned char status; @@ -445,9 +448,10 @@ static int keyspan_pda_tiocmget(struct usb_serial_port *port, struct file *file) return value; } -static int keyspan_pda_tiocmset(struct usb_serial_port *port, struct file *file, +static int keyspan_pda_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; int rc; unsigned char status; @@ -469,23 +473,8 @@ static int keyspan_pda_tiocmset(struct usb_serial_port *port, struct file *file, return rc; } -static int keyspan_pda_ioctl(struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg) -{ - switch (cmd) { - case TIOCMIWAIT: - /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ - /* TODO */ - case TIOCGICOUNT: - /* return count of modemline transitions */ - return 0; /* TODO */ - } - - return -ENOIOCTLCMD; -} - -static int keyspan_pda_write(struct usb_serial_port *port, - const unsigned char *buf, int count) +static int keyspan_pda_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count) { struct usb_serial *serial = port->serial; int request_unthrottle = 0; @@ -607,22 +596,21 @@ static void keyspan_pda_write_bulk_callback (struct urb *urb) } -static int keyspan_pda_write_room (struct usb_serial_port *port) +static int keyspan_pda_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct keyspan_pda_private *priv; - priv = usb_get_serial_port_data(port); - /* used by n_tty.c for processing of tabs and such. Giving it our conservative guess is probably good enough, but needs testing by running a console through the device. */ - return (priv->tx_room); } -static int keyspan_pda_chars_in_buffer (struct usb_serial_port *port) +static int keyspan_pda_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct keyspan_pda_private *priv; unsigned long flags; int ret = 0; @@ -640,7 +628,8 @@ static int keyspan_pda_chars_in_buffer (struct usb_serial_port *port) } -static int keyspan_pda_open (struct usb_serial_port *port, struct file *filp) +static int keyspan_pda_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; unsigned char room; @@ -672,7 +661,7 @@ static int keyspan_pda_open (struct usb_serial_port *port, struct file *filp) /* the normal serial device seems to always turn on DTR and RTS here, so do the same */ - if (port->tty->termios->c_cflag & CBAUD) + if (tty && (tty->termios->c_cflag & CBAUD)) keyspan_pda_set_modem_info(serial, (1<<7) | (1<<2) ); else keyspan_pda_set_modem_info(serial, 0); @@ -690,13 +679,14 @@ error: } -static void keyspan_pda_close(struct usb_serial_port *port, struct file *filp) +static void keyspan_pda_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; if (serial->dev) { /* the normal serial device seems to always shut off DTR and RTS now */ - if (port->tty->termios->c_cflag & HUPCL) + if (tty->termios->c_cflag & HUPCL) keyspan_pda_set_modem_info(serial, 0); /* shutdown our bulk reads and writes */ @@ -832,7 +822,6 @@ static struct usb_serial_driver keyspan_pda_device = { .chars_in_buffer = keyspan_pda_chars_in_buffer, .throttle = keyspan_pda_rx_throttle, .unthrottle = keyspan_pda_rx_unthrottle, - .ioctl = keyspan_pda_ioctl, .set_termios = keyspan_pda_set_termios, .break_ctl = keyspan_pda_break_ctl, .tiocmget = keyspan_pda_tiocmget, diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 79787eda9524..4a38ec8f5fe3 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -74,29 +74,33 @@ static int debug; */ static int klsi_105_startup (struct usb_serial *serial); static void klsi_105_shutdown (struct usb_serial *serial); -static int klsi_105_open (struct usb_serial_port *port, +static int klsi_105_open (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); -static void klsi_105_close (struct usb_serial_port *port, +static void klsi_105_close (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); -static int klsi_105_write (struct usb_serial_port *port, +static int klsi_105_write (struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count); static void klsi_105_write_bulk_callback (struct urb *urb); -static int klsi_105_chars_in_buffer (struct usb_serial_port *port); -static int klsi_105_write_room (struct usb_serial_port *port); +static int klsi_105_chars_in_buffer (struct tty_struct *tty); +static int klsi_105_write_room (struct tty_struct *tty); static void klsi_105_read_bulk_callback (struct urb *urb); -static void klsi_105_set_termios (struct usb_serial_port *port, +static void klsi_105_set_termios (struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old); -static void klsi_105_throttle (struct usb_serial_port *port); -static void klsi_105_unthrottle (struct usb_serial_port *port); +static void klsi_105_throttle (struct tty_struct *tty); +static void klsi_105_unthrottle (struct tty_struct *tty); /* -static void klsi_105_break_ctl (struct usb_serial_port *port, +static void klsi_105_break_ctl (struct tty_struct *tty, int break_state ); */ -static int klsi_105_tiocmget (struct usb_serial_port *port, +static int klsi_105_tiocmget (struct tty_struct *tty, struct file *file); -static int klsi_105_tiocmset (struct usb_serial_port *port, +static int klsi_105_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); @@ -361,7 +365,8 @@ static void klsi_105_shutdown (struct usb_serial *serial) } } /* klsi_105_shutdown */ -static int klsi_105_open (struct usb_serial_port *port, struct file *filp) +static int klsi_105_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct klsi_105_private *priv = usb_get_serial_port_data(port); int retval = 0; @@ -375,7 +380,7 @@ static int klsi_105_open (struct usb_serial_port *port, struct file *filp) /* force low_latency on so that our tty_push actually forces * the data through - * port->tty->low_latency = 1; */ + * tty->low_latency = 1; */ /* Do a defined restart: * Set up sane default baud rate and send the 'READ_ON' @@ -393,12 +398,12 @@ static int klsi_105_open (struct usb_serial_port *port, struct file *filp) /* set up termios structure */ spin_lock_irqsave (&priv->lock, flags); - priv->termios.c_iflag = port->tty->termios->c_iflag; - priv->termios.c_oflag = port->tty->termios->c_oflag; - priv->termios.c_cflag = port->tty->termios->c_cflag; - priv->termios.c_lflag = port->tty->termios->c_lflag; + priv->termios.c_iflag = tty->termios->c_iflag; + priv->termios.c_oflag = tty->termios->c_oflag; + priv->termios.c_cflag = tty->termios->c_cflag; + priv->termios.c_lflag = tty->termios->c_lflag; for (i=0; itermios.c_cc[i] = port->tty->termios->c_cc[i]; + priv->termios.c_cc[i] = tty->termios->c_cc[i]; priv->cfg.pktlen = cfg.pktlen; priv->cfg.baudrate = cfg.baudrate; priv->cfg.databits = cfg.databits; @@ -452,7 +457,8 @@ exit: } /* klsi_105_open */ -static void klsi_105_close (struct usb_serial_port *port, struct file *filp) +static void klsi_105_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct klsi_105_private *priv = usb_get_serial_port_data(port); int rc; @@ -493,8 +499,8 @@ static void klsi_105_close (struct usb_serial_port *port, struct file *filp) #define KLSI_105_DATA_OFFSET 2 /* in the bulk urb data block */ -static int klsi_105_write (struct usb_serial_port *port, - const unsigned char *buf, int count) +static int klsi_105_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count) { struct klsi_105_private *priv = usb_get_serial_port_data(port); int result, size; @@ -584,8 +590,9 @@ static void klsi_105_write_bulk_callback ( struct urb *urb) /* return number of characters currently in the writing process */ -static int klsi_105_chars_in_buffer (struct usb_serial_port *port) +static int klsi_105_chars_in_buffer (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int chars = 0; int i; unsigned long flags; @@ -605,8 +612,9 @@ static int klsi_105_chars_in_buffer (struct usb_serial_port *port) return (chars); } -static int klsi_105_write_room (struct usb_serial_port *port) +static int klsi_105_write_room (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; unsigned long flags; int i; int room = 0; @@ -660,7 +668,7 @@ static void klsi_105_read_bulk_callback (struct urb *urb) } else { int bytes_sent = ((__u8 *) data)[0] + ((unsigned int) ((__u8 *) data)[1] << 8); - tty = port->tty; + tty = port->port.tty; /* we should immediately resubmit the URB, before attempting * to pass the data on to the tty layer. But that needs locking * against re-entry an then mixed-up data because of @@ -699,11 +707,11 @@ static void klsi_105_read_bulk_callback (struct urb *urb) } /* klsi_105_read_bulk_callback */ -static void klsi_105_set_termios (struct usb_serial_port *port, +static void klsi_105_set_termios (struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct klsi_105_private *priv = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; unsigned int iflag = tty->termios->c_iflag; unsigned int old_iflag = old_termios->c_iflag; unsigned int cflag = tty->termios->c_cflag; @@ -863,8 +871,9 @@ static void klsi_105_set_termios (struct usb_serial_port *port, #if 0 -static void mct_u232_break_ctl( struct usb_serial_port *port, int break_state ) +static void mct_u232_break_ctl( struct tty_struct *tty, int break_state ) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; struct mct_u232_private *priv = (struct mct_u232_private *)port->private; unsigned char lcr = priv->last_lcr; @@ -878,8 +887,9 @@ static void mct_u232_break_ctl( struct usb_serial_port *port, int break_state ) } /* mct_u232_break_ctl */ #endif -static int klsi_105_tiocmget (struct usb_serial_port *port, struct file *file) +static int klsi_105_tiocmget (struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct klsi_105_private *priv = usb_get_serial_port_data(port); unsigned long flags; int rc; @@ -900,7 +910,7 @@ static int klsi_105_tiocmget (struct usb_serial_port *port, struct file *file) return (int)line_state; } -static int klsi_105_tiocmset (struct usb_serial_port *port, struct file *file, +static int klsi_105_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { int retval = -EINVAL; @@ -929,14 +939,16 @@ static int klsi_105_tiocmset (struct usb_serial_port *port, struct file *file, return retval; } -static void klsi_105_throttle (struct usb_serial_port *port) +static void klsi_105_throttle (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); usb_kill_urb(port->read_urb); } -static void klsi_105_unthrottle (struct usb_serial_port *port) +static void klsi_105_unthrottle (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int result; dbg("%s - port %d", __func__, port->number); diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index 693f00da7c03..40c67f0096b1 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -70,19 +70,22 @@ static int debug; /* Function prototypes */ static int kobil_startup (struct usb_serial *serial); static void kobil_shutdown (struct usb_serial *serial); -static int kobil_open (struct usb_serial_port *port, struct file *filp); -static void kobil_close (struct usb_serial_port *port, struct file *filp); -static int kobil_write (struct usb_serial_port *port, +static int kobil_open (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static void kobil_close (struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp); +static int kobil_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); -static int kobil_write_room(struct usb_serial_port *port); -static int kobil_ioctl(struct usb_serial_port *port, struct file *file, +static int kobil_write_room(struct tty_struct *tty); +static int kobil_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); -static int kobil_tiocmget(struct usb_serial_port *port, struct file *file); -static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, +static int kobil_tiocmget(struct tty_struct *tty, struct file *file); +static int kobil_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); static void kobil_read_int_callback( struct urb *urb ); static void kobil_write_callback( struct urb *purb ); -static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old); +static void kobil_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old); static struct usb_device_id id_table [] = { @@ -201,8 +204,8 @@ static void kobil_shutdown (struct usb_serial *serial) dbg("%s - port %d", __func__, serial->port[0]->number); for (i=0; i < serial->num_ports; ++i) { - while (serial->port[i]->open_count > 0) { - kobil_close (serial->port[i], NULL); + while (serial->port[i]->port.count > 0) { + kobil_close (NULL, serial->port[i], NULL); } kfree(usb_get_serial_port_data(serial->port[i])); usb_set_serial_port_data(serial->port[i], NULL); @@ -210,7 +213,8 @@ static void kobil_shutdown (struct usb_serial *serial) } -static int kobil_open (struct usb_serial_port *port, struct file *filp) +static int kobil_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { int result = 0; struct kobil_private *priv; @@ -229,14 +233,15 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp) * the data through, otherwise it is scheduled, and with high * data rates (like with OHCI) data can get lost. */ - port->tty->low_latency = 1; - - // without this, every push_tty_char is echoed :-( - port->tty->termios->c_lflag = 0; - port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); - port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; - port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) - + if (tty) { + tty->low_latency = 1; + + /* Default to echo off and other sane device settings */ + tty->termios->c_lflag = 0; + tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); + tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF; + tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) + } // allocate memory for transfer buffer transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); if (! transfer_buffer) { @@ -330,7 +335,8 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp) } -static void kobil_close (struct usb_serial_port *port, struct file *filp) +static void kobil_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { dbg("%s - port %d", __func__, port->number); @@ -360,7 +366,7 @@ static void kobil_read_int_callback(struct urb *urb) return; } - tty = port->tty; + tty = port->port.tty; if (urb->actual_length) { // BEGIN DEBUG @@ -395,7 +401,7 @@ static void kobil_write_callback( struct urb *purb ) } -static int kobil_write (struct usb_serial_port *port, +static int kobil_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { int length = 0; @@ -417,12 +423,9 @@ static int kobil_write (struct usb_serial_port *port, // Copy data to buffer memcpy (priv->buf + priv->filled, buf, count); - usb_serial_debug_data(debug, &port->dev, __func__, count, priv->buf + priv->filled); - priv->filled = priv->filled + count; - // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol. if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) { @@ -478,15 +481,17 @@ static int kobil_write (struct usb_serial_port *port, } -static int kobil_write_room (struct usb_serial_port *port) +static int kobil_write_room (struct tty_struct *tty) { //dbg("%s - port %d", __func__, port->number); + /* FIXME */ return 8; } -static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) +static int kobil_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct kobil_private * priv; int result; unsigned char *transfer_buffer; @@ -524,9 +529,10 @@ static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) return result; } -static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, +static int kobil_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct kobil_private * priv; int result; int dtr = 0; @@ -590,12 +596,13 @@ static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, return (result < 0) ? result : 0; } -static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old) +static void kobil_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old) { struct kobil_private * priv; int result; unsigned short urb_val = 0; - int c_cflag = port->tty->termios->c_cflag; + int c_cflag = tty->termios->c_cflag; speed_t speed; void * settings; @@ -604,7 +611,7 @@ static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old // This device doesn't support ioctl calls return; - switch (speed = tty_get_baud_rate(port->tty)) { + switch (speed = tty_get_baud_rate(tty)) { case 1200: urb_val = SUSBCR_SBR_1200; break; @@ -634,8 +641,8 @@ static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old urb_val |= SUSBCR_SPASB_NoParity; strcat(settings, "No Parity"); } - port->tty->termios->c_cflag &= ~CMSPAR; - tty_encode_baud_rate(port->tty, speed, speed); + tty->termios->c_cflag &= ~CMSPAR; + tty_encode_baud_rate(tty, speed, speed); result = usb_control_msg( port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0 ), @@ -650,8 +657,9 @@ static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old kfree(settings); } -static int kobil_ioctl(struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) +static int kobil_ioctl(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct kobil_private * priv = usb_get_serial_port_data(port); unsigned char *transfer_buffer; int transfer_buffer_length = 8; @@ -662,7 +670,7 @@ static int kobil_ioctl(struct usb_serial_port *port, struct file * file, unsigne return 0; switch (cmd) { - case TCFLSH: // 0x540B + case TCFLSH: transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL); if (! transfer_buffer) return -ENOBUFS; @@ -680,7 +688,7 @@ static int kobil_ioctl(struct usb_serial_port *port, struct file * file, unsigne dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result); kfree(transfer_buffer); - return (result < 0) ? -EFAULT : 0; + return (result < 0) ? -EIO: 0; default: return -ENOIOCTLCMD; } diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 5fc2cef30e39..7bce4302a5f9 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -92,26 +92,25 @@ static int debug; */ static int mct_u232_startup (struct usb_serial *serial); static void mct_u232_shutdown (struct usb_serial *serial); -static int mct_u232_open (struct usb_serial_port *port, +static int mct_u232_open (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); -static void mct_u232_close (struct usb_serial_port *port, +static void mct_u232_close (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); static void mct_u232_read_int_callback (struct urb *urb); -static void mct_u232_set_termios (struct usb_serial_port *port, +static void mct_u232_set_termios (struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios * old); -static int mct_u232_ioctl (struct usb_serial_port *port, - struct file * file, - unsigned int cmd, - unsigned long arg); -static void mct_u232_break_ctl (struct usb_serial_port *port, +static void mct_u232_break_ctl (struct tty_struct *tty, int break_state ); -static int mct_u232_tiocmget (struct usb_serial_port *port, +static int mct_u232_tiocmget (struct tty_struct *tty, struct file *file); -static int mct_u232_tiocmset (struct usb_serial_port *port, +static int mct_u232_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); -static void mct_u232_throttle (struct usb_serial_port *port); -static void mct_u232_unthrottle (struct usb_serial_port *port); +static void mct_u232_throttle (struct tty_struct *tty); +static void mct_u232_unthrottle (struct tty_struct *tty); /* @@ -149,7 +148,6 @@ static struct usb_serial_driver mct_u232_device = { .throttle = mct_u232_throttle, .unthrottle = mct_u232_unthrottle, .read_int_callback = mct_u232_read_int_callback, - .ioctl = mct_u232_ioctl, .set_termios = mct_u232_set_termios, .break_ctl = mct_u232_break_ctl, .tiocmget = mct_u232_tiocmget, @@ -224,8 +222,8 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value } } -static int mct_u232_set_baud_rate(struct usb_serial *serial, struct usb_serial_port *port, - speed_t value) +static int mct_u232_set_baud_rate(struct tty_struct *tty, + struct usb_serial *serial, struct usb_serial_port *port, speed_t value) { __le32 divisor; int rc; @@ -243,7 +241,7 @@ static int mct_u232_set_baud_rate(struct usb_serial *serial, struct usb_serial_p if (rc < 0) /*FIXME: What value speed results */ err("Set BAUD RATE %d failed (error = %d)", value, rc); else - tty_encode_baud_rate(port->tty, speed, speed); + tty_encode_baud_rate(tty, speed, speed); dbg("set_baud_rate: value: 0x%x, divisor: 0x%x", value, divisor); /* Mimic the MCT-supplied Windows driver (version 1.21P.0104), which @@ -272,7 +270,7 @@ static int mct_u232_set_baud_rate(struct usb_serial *serial, struct usb_serial_p err("Sending USB device request code %d failed (error = %d)", MCT_U232_SET_UNKNOWN1_REQUEST, rc); - if (port && C_CRTSCTS(port->tty)) { + if (port && C_CRTSCTS(tty)) { cts_enable_byte = 1; } @@ -411,7 +409,8 @@ static void mct_u232_shutdown (struct usb_serial *serial) } } /* mct_u232_shutdown */ -static int mct_u232_open (struct usb_serial_port *port, struct file *filp) +static int mct_u232_open (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; struct mct_u232_private *priv = usb_get_serial_port_data(port); @@ -437,7 +436,7 @@ static int mct_u232_open (struct usb_serial_port *port, struct file *filp) * either. */ spin_lock_irqsave(&priv->lock, flags); - if (port->tty->termios->c_cflag & CBAUD) + if (tty && (tty->termios->c_cflag & CBAUD)) priv->control_state = TIOCM_DTR | TIOCM_RTS; else priv->control_state = 0; @@ -481,15 +480,16 @@ error: } /* mct_u232_open */ -static void mct_u232_close (struct usb_serial_port *port, struct file *filp) +static void mct_u232_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { unsigned int c_cflag; unsigned int control_state; struct mct_u232_private *priv = usb_get_serial_port_data(port); dbg("%s port %d", __func__, port->number); - if (port->tty) { - c_cflag = port->tty->termios->c_cflag; + if (tty) { + c_cflag = tty->termios->c_cflag; mutex_lock(&port->serial->disc_mutex); if (c_cflag & HUPCL && !port->serial->disconnected) { /* drop DTR and RTS */ @@ -553,7 +553,7 @@ static void mct_u232_read_int_callback (struct urb *urb) */ if (urb->transfer_buffer_length > 2) { int i; - tty = port->tty; + tty = port->port.tty; if (urb->actual_length) { for (i = 0; i < urb->actual_length ; ++i) { tty_insert_flip_char(tty, data[i], 0); @@ -583,7 +583,7 @@ static void mct_u232_read_int_callback (struct urb *urb) * to look in to this before committing any code. */ if (priv->last_lsr & MCT_U232_LSR_ERR) { - tty = port->tty; + tty = port->port.tty; /* Overrun Error */ if (priv->last_lsr & MCT_U232_LSR_OE) { } @@ -606,12 +606,13 @@ exit: __func__, retval); } /* mct_u232_read_int_callback */ -static void mct_u232_set_termios (struct usb_serial_port *port, +static void mct_u232_set_termios (struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct usb_serial *serial = port->serial; struct mct_u232_private *priv = usb_get_serial_port_data(port); - struct ktermios *termios = port->tty->termios; + struct ktermios *termios = tty->termios; unsigned int cflag = termios->c_cflag; unsigned int old_cflag = old_termios->c_cflag; unsigned long flags; @@ -638,7 +639,7 @@ static void mct_u232_set_termios (struct usb_serial_port *port, mct_u232_set_modem_ctrl(serial, control_state); } - mct_u232_set_baud_rate(serial, port, tty_get_baud_rate(port->tty)); + mct_u232_set_baud_rate(tty, serial, port, tty_get_baud_rate(tty)); if ((cflag & CBAUD) == B0 ) { dbg("%s: baud is B0", __func__); @@ -689,8 +690,9 @@ static void mct_u232_set_termios (struct usb_serial_port *port, spin_unlock_irqrestore(&priv->lock, flags); } /* mct_u232_set_termios */ -static void mct_u232_break_ctl( struct usb_serial_port *port, int break_state ) +static void mct_u232_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; struct mct_u232_private *priv = usb_get_serial_port_data(port); unsigned char lcr; @@ -709,8 +711,9 @@ static void mct_u232_break_ctl( struct usb_serial_port *port, int break_state ) } /* mct_u232_break_ctl */ -static int mct_u232_tiocmget (struct usb_serial_port *port, struct file *file) +static int mct_u232_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct mct_u232_private *priv = usb_get_serial_port_data(port); unsigned int control_state; unsigned long flags; @@ -724,9 +727,10 @@ static int mct_u232_tiocmget (struct usb_serial_port *port, struct file *file) return control_state; } -static int mct_u232_tiocmset (struct usb_serial_port *port, struct file *file, +static int mct_u232_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; struct mct_u232_private *priv = usb_get_serial_port_data(port); unsigned int control_state; @@ -751,73 +755,46 @@ static int mct_u232_tiocmset (struct usb_serial_port *port, struct file *file, return mct_u232_set_modem_ctrl(serial, control_state); } -static int mct_u232_ioctl (struct usb_serial_port *port, struct file * file, - unsigned int cmd, unsigned long arg) -{ - dbg("%scmd=0x%x", __func__, cmd); - - /* Based on code from acm.c and others */ - switch (cmd) { - case TIOCMIWAIT: - /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ - /* TODO */ - return( 0 ); - - case TIOCGICOUNT: - /* return count of modemline transitions */ - /* TODO */ - return 0; - - default: - dbg("%s: arg not supported - 0x%04x", __func__,cmd); - return(-ENOIOCTLCMD); - break; - } - return 0; -} /* mct_u232_ioctl */ - -static void mct_u232_throttle (struct usb_serial_port *port) +static void mct_u232_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct mct_u232_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int control_state; - struct tty_struct *tty; - tty = port->tty; dbg("%s - port %d", __func__, port->number); spin_lock_irqsave(&priv->lock, flags); priv->rx_flags |= THROTTLED; if (C_CRTSCTS(tty)) { - priv->control_state &= ~TIOCM_RTS; - control_state = priv->control_state; - spin_unlock_irqrestore(&priv->lock, flags); - (void) mct_u232_set_modem_ctrl(port->serial, control_state); + priv->control_state &= ~TIOCM_RTS; + control_state = priv->control_state; + spin_unlock_irqrestore(&priv->lock, flags); + (void) mct_u232_set_modem_ctrl(port->serial, control_state); } else { - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); } } -static void mct_u232_unthrottle (struct usb_serial_port *port) +static void mct_u232_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct mct_u232_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int control_state; - struct tty_struct *tty; dbg("%s - port %d", __func__, port->number); - tty = port->tty; spin_lock_irqsave(&priv->lock, flags); if ((priv->rx_flags & THROTTLED) && C_CRTSCTS(tty)) { - priv->rx_flags &= ~THROTTLED; - priv->control_state |= TIOCM_RTS; - control_state = priv->control_state; - spin_unlock_irqrestore(&priv->lock, flags); - (void) mct_u232_set_modem_ctrl(port->serial, control_state); + priv->rx_flags &= ~THROTTLED; + priv->control_state |= TIOCM_RTS; + control_state = priv->control_state; + spin_unlock_irqrestore(&priv->lock, flags); + (void) mct_u232_set_modem_ctrl(port->serial, control_state); } else { - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); } } diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 50f1fe263338..d47f0814ce2d 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -218,7 +218,7 @@ static void mos7720_bulk_in_callback(struct urb *urb) data = urb->transfer_buffer; - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -264,7 +264,7 @@ static void mos7720_bulk_out_data_callback(struct urb *urb) dbg("Entering ........."); - tty = mos7720_port->port->tty; + tty = mos7720_port->port->port.tty; if (tty && mos7720_port->open) tty_wakeup(tty); @@ -320,7 +320,8 @@ static int send_mos_cmd(struct usb_serial *serial, __u8 request, __u16 value, return status; } -static int mos7720_open(struct usb_serial_port *port, struct file * filp) +static int mos7720_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct usb_serial *serial; struct usb_serial_port *port0; @@ -443,14 +444,12 @@ static int mos7720_open(struct usb_serial_port *port, struct file * filp) data = 0x0c; send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data); -//Matrix - /* force low_latency on so that our tty_push actually forces * * the data through,otherwise it is scheduled, and with * * high data rates (like with OHCI) data can get lost. */ - if (port->tty) - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; /* see if we've set up our endpoint info yet * * (can't set it up in mos7720_startup as the * @@ -515,8 +514,9 @@ static int mos7720_open(struct usb_serial_port *port, struct file * filp) * system, * Otherwise we return a negative error number. */ -static int mos7720_chars_in_buffer(struct usb_serial_port *port) +static int mos7720_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int i; int chars = 0; struct moschip_port *mos7720_port; @@ -537,7 +537,8 @@ static int mos7720_chars_in_buffer(struct usb_serial_port *port) return chars; } -static void mos7720_close(struct usb_serial_port *port, struct file *filp) +static void mos7720_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial; struct moschip_port *mos7720_port; @@ -588,8 +589,9 @@ static void mos7720_close(struct usb_serial_port *port, struct file *filp) dbg("Leaving %s", __func__); } -static void mos7720_break(struct usb_serial_port *port, int break_state) +static void mos7720_break(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; unsigned char data; struct usb_serial *serial; struct moschip_port *mos7720_port; @@ -621,8 +623,9 @@ static void mos7720_break(struct usb_serial_port *port, int break_state) * If successful, we return the amount of room that we have for this port * Otherwise we return a negative error number. */ -static int mos7720_write_room(struct usb_serial_port *port) +static int mos7720_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7720_port; int room = 0; int i; @@ -645,8 +648,8 @@ static int mos7720_write_room(struct usb_serial_port *port) return room; } -static int mos7720_write(struct usb_serial_port *port, - const unsigned char *data, int count) +static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *data, int count) { int status; int i; @@ -719,10 +722,10 @@ exit: return bytes_sent; } -static void mos7720_throttle(struct usb_serial_port *port) +static void mos7720_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7720_port; - struct tty_struct *tty; int status; dbg("%s- port %d\n", __func__, port->number); @@ -739,16 +742,10 @@ static void mos7720_throttle(struct usb_serial_port *port) dbg("%s: Entering ..........", __func__); - tty = port->tty; - if (!tty) { - dbg("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the stop character */ if (I_IXOFF(tty)) { unsigned char stop_char = STOP_CHAR(tty); - status = mos7720_write(port, &stop_char, 1); + status = mos7720_write(tty, port, &stop_char, 1); if (status <= 0) return; } @@ -764,11 +761,11 @@ static void mos7720_throttle(struct usb_serial_port *port) } } -static void mos7720_unthrottle(struct usb_serial_port *port) +static void mos7720_unthrottle(struct tty_struct *tty) { - struct tty_struct *tty; - int status; + struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7720_port = usb_get_serial_port_data(port); + int status; if (mos7720_port == NULL) return; @@ -780,16 +777,10 @@ static void mos7720_unthrottle(struct usb_serial_port *port) dbg("%s: Entering ..........", __func__); - tty = port->tty; - if (!tty) { - dbg("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the start character */ if (I_IXOFF(tty)) { unsigned char start_char = START_CHAR(tty); - status = mos7720_write(port, &start_char, 1); + status = mos7720_write(tty, port, &start_char, 1); if (status <= 0) return; } @@ -1011,12 +1002,12 @@ static int send_cmd_write_baud_rate(struct moschip_port *mos7720_port, * This routine is called to set the UART on the device to match * the specified new settings. */ -static void change_port_settings(struct moschip_port *mos7720_port, +static void change_port_settings(struct tty_struct *tty, + struct moschip_port *mos7720_port, struct ktermios *old_termios) { struct usb_serial_port *port; struct usb_serial *serial; - struct tty_struct *tty; int baud; unsigned cflag; unsigned iflag; @@ -1042,8 +1033,6 @@ static void change_port_settings(struct moschip_port *mos7720_port, return; } - tty = mos7720_port->port->tty; - dbg("%s: Entering ..........", __func__); lData = UART_LCR_WLEN8; @@ -1198,14 +1187,13 @@ static void change_port_settings(struct moschip_port *mos7720_port, * this function is called by the tty driver when it wants to change the * termios structure. */ -static void mos7720_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void mos7720_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { int status; unsigned int cflag; struct usb_serial *serial; struct moschip_port *mos7720_port; - struct tty_struct *tty; serial = port->serial; @@ -1214,9 +1202,6 @@ static void mos7720_set_termios(struct usb_serial_port *port, if (mos7720_port == NULL) return; - tty = port->tty; - - if (!mos7720_port->open) { dbg("%s - port not opened", __func__); return; @@ -1237,7 +1222,7 @@ static void mos7720_set_termios(struct usb_serial_port *port, dbg("%s - port %d", __func__, port->number); /* change the port settings to the new ones specified */ - change_port_settings(mos7720_port, old_termios); + change_port_settings(tty, mos7720_port, old_termios); if(!port->read_urb) { dbg("%s","URB KILLED !!!!!\n"); @@ -1264,13 +1249,13 @@ static void mos7720_set_termios(struct usb_serial_port *port, * transmit holding register is empty. This functionality * allows an RS485 driver to be written in user space. */ -static int get_lsr_info(struct moschip_port *mos7720_port, +static int get_lsr_info(struct tty_struct *tty, struct moschip_port *mos7720_port, unsigned int __user *value) { int count; unsigned int result = 0; - count = mos7720_chars_in_buffer(mos7720_port->port); + count = mos7720_chars_in_buffer(tty); if (count == 0) { dbg("%s -- Empty", __func__); result = TIOCSER_TEMT; @@ -1290,7 +1275,7 @@ static int get_number_bytes_avail(struct moschip_port *mos7720_port, unsigned int __user *value) { unsigned int result = 0; - struct tty_struct *tty = mos7720_port->port->tty; + struct tty_struct *tty = mos7720_port->port->port.tty; if (!tty) return -ENOIOCTLCMD; @@ -1407,9 +1392,10 @@ static int get_serial_info(struct moschip_port *mos7720_port, return 0; } -static int mos7720_ioctl(struct usb_serial_port *port, struct file *file, +static int mos7720_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7720_port; struct async_icount cnow; struct async_icount cprev; @@ -1431,9 +1417,10 @@ static int mos7720_ioctl(struct usb_serial_port *port, struct file *file, case TIOCSERGETLSR: dbg("%s (%d) TIOCSERGETLSR", __func__, port->number); - return get_lsr_info(mos7720_port, (unsigned int __user *)arg); + return get_lsr_info(tty, mos7720_port, (unsigned int __user *)arg); return 0; + /* FIXME: These should be using the mode methods */ case TIOCMBIS: case TIOCMBIC: case TIOCMSET: @@ -1452,10 +1439,6 @@ static int mos7720_ioctl(struct usb_serial_port *port, struct file *file, return get_serial_info(mos7720_port, (struct serial_struct __user *)arg); - case TIOCSSERIAL: - dbg("%s (%d) TIOCSSERIAL", __func__, port->number); - break; - case TIOCMIWAIT: dbg("%s (%d) TIOCMIWAIT", __func__, port->number); cprev = mos7720_port->icount; diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 78f2f6db494d..2b1fded6619d 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -710,7 +710,7 @@ static void mos7840_bulk_in_callback(struct urb *urb) dbg("%s", "Entering ........... \n"); if (urb->actual_length) { - tty = mos7840_port->port->tty; + tty = mos7840_port->port->port.tty; if (tty) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -774,7 +774,7 @@ static void mos7840_bulk_out_data_callback(struct urb *urb) dbg("%s \n", "Entering ........."); - tty = mos7840_port->port->tty; + tty = mos7840_port->port->port.tty; if (tty && mos7840_port->open) tty_wakeup(tty); @@ -804,7 +804,8 @@ static int mos7840_serial_probe(struct usb_serial *serial, * Otherwise we return a negative error number. *****************************************************************************/ -static int mos7840_open(struct usb_serial_port *port, struct file *filp) +static int mos7840_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { int response; int j; @@ -1008,8 +1009,8 @@ static int mos7840_open(struct usb_serial_port *port, struct file *filp) * the data through,otherwise it is scheduled, and with * * high data rates (like with OHCI) data can get lost. */ - if (port->tty) - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; /* Check to see if we've set up our endpoint info yet * * (can't set it up in mos7840_startup as the structures * * were not set up at that time.) */ @@ -1104,11 +1105,12 @@ static int mos7840_open(struct usb_serial_port *port, struct file *filp) * been written, but hasn't made it out the port yet) * If successful, we return the number of bytes left to be written in the * system, - * Otherwise we return a negative error number. + * Otherwise we return zero. *****************************************************************************/ -static int mos7840_chars_in_buffer(struct usb_serial_port *port) +static int mos7840_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int i; int chars = 0; unsigned long flags; @@ -1118,21 +1120,19 @@ static int mos7840_chars_in_buffer(struct usb_serial_port *port) if (mos7840_port_paranoia_check(port, __func__)) { dbg("%s", "Invalid port \n"); - return -1; + return 0; } mos7840_port = mos7840_get_port_private(port); if (mos7840_port == NULL) { dbg("%s \n", "mos7840_break:leaving ..........."); - return -1; + return 0; } spin_lock_irqsave(&mos7840_port->pool_lock,flags); - for (i = 0; i < NUM_URBS; ++i) { - if (mos7840_port->busy[i]) { + for (i = 0; i < NUM_URBS; ++i) + if (mos7840_port->busy[i]) chars += URB_TRANSFER_BUFFER_SIZE; - } - } spin_unlock_irqrestore(&mos7840_port->pool_lock,flags); dbg("%s - returns %d", __func__, chars); return chars; @@ -1149,7 +1149,8 @@ static int mos7840_chars_in_buffer(struct usb_serial_port *port) * 3. A timeout of 3 seconds without activity has expired * ************************************************************************/ -static void mos7840_block_until_tx_empty(struct moschip_port *mos7840_port) +static void mos7840_block_until_tx_empty(struct tty_struct *tty, + struct moschip_port *mos7840_port) { int timeout = HZ / 10; int wait = 30; @@ -1157,7 +1158,7 @@ static void mos7840_block_until_tx_empty(struct moschip_port *mos7840_port) while (1) { - count = mos7840_chars_in_buffer(mos7840_port->port); + count = mos7840_chars_in_buffer(tty); /* Check for Buffer status */ if (count <= 0) { @@ -1185,7 +1186,8 @@ static void mos7840_block_until_tx_empty(struct moschip_port *mos7840_port) * this function is called by the tty driver when a port is closed *****************************************************************************/ -static void mos7840_close(struct usb_serial_port *port, struct file *filp) +static void mos7840_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial; struct moschip_port *mos7840_port; @@ -1226,20 +1228,17 @@ static void mos7840_close(struct usb_serial_port *port, struct file *filp) } } - if (serial->dev) { + if (serial->dev) /* flush and block until tx is empty */ - mos7840_block_until_tx_empty(mos7840_port); - } + mos7840_block_until_tx_empty(tty, mos7840_port); /* While closing port, shutdown all bulk read, write * * and interrupt read if they exists */ if (serial->dev) { - if (mos7840_port->write_urb) { dbg("%s", "Shutdown bulk write\n"); usb_kill_urb(mos7840_port->write_urb); } - if (mos7840_port->read_urb) { dbg("%s", "Shutdown bulk read\n"); usb_kill_urb(mos7840_port->read_urb); @@ -1247,11 +1246,10 @@ static void mos7840_close(struct usb_serial_port *port, struct file *filp) if ((&mos7840_port->control_urb)) { dbg("%s", "Shutdown control read\n"); // usb_kill_urb (mos7840_port->control_urb); - } } -// if(mos7840_port->ctrl_buf != NULL) -// kfree(mos7840_port->ctrl_buf); +// if(mos7840_port->ctrl_buf != NULL) +// kfree(mos7840_port->ctrl_buf); port0->open_ports--; dbg("mos7840_num_open_ports in close%d:in port%d\n", port0->open_ports, port->number); @@ -1293,15 +1291,15 @@ static void mos7840_close(struct usb_serial_port *port, struct file *filp) * ************************************************************************/ -static void mos7840_block_until_chase_response(struct moschip_port - *mos7840_port) +static void mos7840_block_until_chase_response(struct tty_struct *tty, + struct moschip_port *mos7840_port) { int timeout = 1 * HZ; int wait = 10; int count; while (1) { - count = mos7840_chars_in_buffer(mos7840_port->port); + count = mos7840_chars_in_buffer(tty); /* Check for Buffer status */ if (count <= 0) { @@ -1328,8 +1326,9 @@ static void mos7840_block_until_chase_response(struct moschip_port * mos7840_break * this function sends a break to the port *****************************************************************************/ -static void mos7840_break(struct usb_serial_port *port, int break_state) +static void mos7840_break(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; unsigned char data; struct usb_serial *serial; struct moschip_port *mos7840_port; @@ -1354,17 +1353,14 @@ static void mos7840_break(struct usb_serial_port *port, int break_state) return; } - if (serial->dev) { - + if (serial->dev) /* flush and block until tx is empty */ - mos7840_block_until_chase_response(mos7840_port); - } + mos7840_block_until_chase_response(tty, mos7840_port); - if (break_state == -1) { + if (break_state == -1) data = mos7840_port->shadowLCR | LCR_SET_BREAK; - } else { + else data = mos7840_port->shadowLCR & ~LCR_SET_BREAK; - } mos7840_port->shadowLCR = data; dbg("mcs7840_break mos7840_port->shadowLCR is %x\n", @@ -1383,8 +1379,9 @@ static void mos7840_break(struct usb_serial_port *port, int break_state) * Otherwise we return a negative error number. *****************************************************************************/ -static int mos7840_write_room(struct usb_serial_port *port) +static int mos7840_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int i; int room = 0; unsigned long flags; @@ -1426,7 +1423,7 @@ static int mos7840_write_room(struct usb_serial_port *port) * return a negative error number. *****************************************************************************/ -static int mos7840_write(struct usb_serial_port *port, +static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count) { int status; @@ -1555,8 +1552,7 @@ static int mos7840_write(struct usb_serial_port *port, mos7840_port->icount.tx += transfer_size; smp_wmb(); dbg("mos7840_port->icount.tx is %d:\n", mos7840_port->icount.tx); - exit: - +exit: return bytes_sent; } @@ -1567,10 +1563,10 @@ static int mos7840_write(struct usb_serial_port *port, * being read from the port. *****************************************************************************/ -static void mos7840_throttle(struct usb_serial_port *port) +static void mos7840_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7840_port; - struct tty_struct *tty; int status; if (mos7840_port_paranoia_check(port, __func__)) { @@ -1592,32 +1588,21 @@ static void mos7840_throttle(struct usb_serial_port *port) dbg("%s", "Entering .......... \n"); - tty = port->tty; - if (!tty) { - dbg("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the stop character */ if (I_IXOFF(tty)) { unsigned char stop_char = STOP_CHAR(tty); - status = mos7840_write(port, &stop_char, 1); - if (status <= 0) { + status = mos7840_write(tty, port, &stop_char, 1); + if (status <= 0) return; - } } - /* if we are implementing RTS/CTS, toggle that line */ if (tty->termios->c_cflag & CRTSCTS) { mos7840_port->shadowMCR &= ~MCR_RTS; status = 0; - status = - mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, + status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mos7840_port->shadowMCR); - - if (status < 0) { + if (status < 0) return; - } } return; @@ -1628,9 +1613,9 @@ static void mos7840_throttle(struct usb_serial_port *port) * this function is called by the tty driver when it wants to resume the data * being read from the port (called after SerialThrottle is called) *****************************************************************************/ -static void mos7840_unthrottle(struct usb_serial_port *port) +static void mos7840_unthrottle(struct tty_struct *tty) { - struct tty_struct *tty; + struct usb_serial_port *port = tty->driver_data; int status; struct moschip_port *mos7840_port = mos7840_get_port_private(port); @@ -1649,38 +1634,28 @@ static void mos7840_unthrottle(struct usb_serial_port *port) dbg("%s", "Entering .......... \n"); - tty = port->tty; - if (!tty) { - dbg("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the start character */ if (I_IXOFF(tty)) { unsigned char start_char = START_CHAR(tty); - status = mos7840_write(port, &start_char, 1); - if (status <= 0) { + status = mos7840_write(tty, port, &start_char, 1); + if (status <= 0) return; - } } /* if we are implementing RTS/CTS, toggle that line */ if (tty->termios->c_cflag & CRTSCTS) { mos7840_port->shadowMCR |= MCR_RTS; status = 0; - status = - mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, + status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mos7840_port->shadowMCR); - if (status < 0) { + if (status < 0) return; - } } - - return; } -static int mos7840_tiocmget(struct usb_serial_port *port, struct file *file) +static int mos7840_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7840_port; unsigned int result; __u16 msr; @@ -1708,9 +1683,10 @@ static int mos7840_tiocmget(struct usb_serial_port *port, struct file *file) return result; } -static int mos7840_tiocmset(struct usb_serial_port *port, struct file *file, +static int mos7840_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7840_port; unsigned int mcr; int status; @@ -1949,10 +1925,9 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port, * the specified new settings. *****************************************************************************/ -static void mos7840_change_port_settings(struct moschip_port *mos7840_port, - struct ktermios *old_termios) +static void mos7840_change_port_settings(struct tty_struct *tty, + struct moschip_port *mos7840_port, struct ktermios *old_termios) { - struct tty_struct *tty; int baud; unsigned cflag; unsigned iflag; @@ -1988,8 +1963,6 @@ static void mos7840_change_port_settings(struct moschip_port *mos7840_port, return; } - tty = mos7840_port->port->tty; - dbg("%s", "Entering .......... \n"); lData = LCR_BITS_8; @@ -2131,14 +2104,14 @@ static void mos7840_change_port_settings(struct moschip_port *mos7840_port, * the termios structure *****************************************************************************/ -static void mos7840_set_termios(struct usb_serial_port *port, +static void mos7840_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { int status; unsigned int cflag; struct usb_serial *serial; struct moschip_port *mos7840_port; - struct tty_struct *tty; dbg("mos7840_set_termios: START\n"); if (mos7840_port_paranoia_check(port, __func__)) { dbg("%s", "Invalid port \n"); @@ -2157,8 +2130,6 @@ static void mos7840_set_termios(struct usb_serial_port *port, if (mos7840_port == NULL) return; - tty = port->tty; - if (!mos7840_port->open) { dbg("%s - port not opened", __func__); return; @@ -2176,7 +2147,7 @@ static void mos7840_set_termios(struct usb_serial_port *port, /* change the port settings to the new ones specified */ - mos7840_change_port_settings(mos7840_port, old_termios); + mos7840_change_port_settings(tty, mos7840_port, old_termios); if (!mos7840_port->read_urb) { dbg("%s", "URB KILLED !!!!!\n"); @@ -2205,13 +2176,13 @@ static void mos7840_set_termios(struct usb_serial_port *port, * allows an RS485 driver to be written in user space. *****************************************************************************/ -static int mos7840_get_lsr_info(struct moschip_port *mos7840_port, +static int mos7840_get_lsr_info(struct tty_struct *tty, unsigned int __user *value) { int count; unsigned int result = 0; - count = mos7840_chars_in_buffer(mos7840_port->port); + count = mos7840_chars_in_buffer(tty); if (count == 0) { dbg("%s -- Empty", __func__); result = TIOCSER_TEMT; @@ -2227,6 +2198,8 @@ static int mos7840_get_lsr_info(struct moschip_port *mos7840_port, * function to set modem info *****************************************************************************/ +/* FIXME: Should be using the model control hooks */ + static int mos7840_set_modem_info(struct moschip_port *mos7840_port, unsigned int cmd, unsigned int __user *value) { @@ -2304,9 +2277,8 @@ static int mos7840_get_modem_info(struct moschip_port *mos7840_port, __u16 msr; unsigned int mcr = mos7840_port->shadowMCR; int status = 0; - status = - mos7840_get_uart_reg(mos7840_port->port, MODEM_STATUS_REGISTER, - &msr); + status = mos7840_get_uart_reg(mos7840_port->port, + MODEM_STATUS_REGISTER, &msr); result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) /* 0x002 */ |((mcr & MCR_RTS) ? TIOCM_RTS : 0) /* 0x004 */ |((msr & MOS7840_MSR_CTS) ? TIOCM_CTS : 0) /* 0x020 */ @@ -2359,12 +2331,12 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port, * this function handles any ioctl calls to the driver *****************************************************************************/ -static int mos7840_ioctl(struct usb_serial_port *port, struct file *file, +static int mos7840_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; void __user *argp = (void __user *)arg; struct moschip_port *mos7840_port; - struct tty_struct *tty; struct async_icount cnow; struct async_icount cprev; @@ -2381,8 +2353,6 @@ static int mos7840_ioctl(struct usb_serial_port *port, struct file *file, if (mos7840_port == NULL) return -1; - tty = mos7840_port->port->tty; - dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd); switch (cmd) { @@ -2390,9 +2360,10 @@ static int mos7840_ioctl(struct usb_serial_port *port, struct file *file, case TIOCSERGETLSR: dbg("%s (%d) TIOCSERGETLSR", __func__, port->number); - return mos7840_get_lsr_info(mos7840_port, argp); + return mos7840_get_lsr_info(tty, argp); return 0; + /* FIXME: use the modem hooks and remove this */ case TIOCMBIS: case TIOCMBIC: case TIOCMSET: @@ -2463,13 +2434,9 @@ static int mos7840_ioctl(struct usb_serial_port *port, struct file *file, if (copy_to_user(argp, &icount, sizeof(icount))) return -EFAULT; return 0; - - case TIOCEXBAUD: - return 0; default: break; } - return -ENOIOCTLCMD; } diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c index 43c8894353bf..d6736531a0fa 100644 --- a/drivers/usb/serial/navman.c +++ b/drivers/usb/serial/navman.c @@ -64,7 +64,7 @@ static void navman_read_int_callback(struct urb *urb) usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -79,7 +79,8 @@ exit: __func__, result); } -static int navman_open(struct usb_serial_port *port, struct file *filp) +static int navman_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { int result = 0; @@ -96,14 +97,15 @@ static int navman_open(struct usb_serial_port *port, struct file *filp) return result; } -static void navman_close(struct usb_serial_port *port, struct file *filp) +static void navman_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { dbg("%s - port %d", __func__, port->number); usb_kill_urb(port->interrupt_in_urb); } -static int navman_write(struct usb_serial_port *port, +static int navman_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { dbg("%s - port %d", __func__, port->number); diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 7b7422f49478..5a2d045562f0 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -61,12 +61,12 @@ static int debug; #define BT_IGNITIONPRO_ID 0x2000 /* This one seems to be a re-branded ZyXEL device */ /* function prototypes */ -static int omninet_open (struct usb_serial_port *port, struct file *filp); -static void omninet_close (struct usb_serial_port *port, struct file *filp); +static int omninet_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void omninet_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); static void omninet_read_bulk_callback (struct urb *urb); static void omninet_write_bulk_callback (struct urb *urb); -static int omninet_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static int omninet_write_room (struct usb_serial_port *port); +static int omninet_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); +static int omninet_write_room (struct tty_struct *tty); static void omninet_shutdown (struct usb_serial *serial); static int omninet_attach (struct usb_serial *serial); @@ -157,7 +157,8 @@ static int omninet_attach (struct usb_serial *serial) return 0; } -static int omninet_open (struct usb_serial_port *port, struct file *filp) +static int omninet_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; struct usb_serial_port *wport; @@ -166,7 +167,7 @@ static int omninet_open (struct usb_serial_port *port, struct file *filp) dbg("%s - port %d", __func__, port->number); wport = serial->port[1]; - wport->tty = port->tty; + wport->port.tty = tty; /* FIXME */ /* Start reading from the device */ usb_fill_bulk_urb(port->read_urb, serial->dev, @@ -181,7 +182,8 @@ static int omninet_open (struct usb_serial_port *port, struct file *filp) return result; } -static void omninet_close (struct usb_serial_port *port, struct file * filp) +static void omninet_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { dbg("%s - port %d", __func__, port->number); usb_kill_urb(port->read_urb); @@ -221,9 +223,9 @@ static void omninet_read_bulk_callback (struct urb *urb) if (urb->actual_length && header->oh_len) { for (i = 0; i < header->oh_len; i++) { - tty_insert_flip_char(port->tty, data[OMNINET_DATAOFFSET + i], 0); + tty_insert_flip_char(port->port.tty, data[OMNINET_DATAOFFSET + i], 0); } - tty_flip_buffer_push(port->tty); + tty_flip_buffer_push(port->port.tty); } /* Continue trying to always read */ @@ -238,7 +240,8 @@ static void omninet_read_bulk_callback (struct urb *urb) return; } -static int omninet_write (struct usb_serial_port *port, const unsigned char *buf, int count) +static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { struct usb_serial *serial = port->serial; struct usb_serial_port *wport = serial->port[1]; @@ -290,8 +293,9 @@ static int omninet_write (struct usb_serial_port *port, const unsigned char *buf } -static int omninet_write_room (struct usb_serial_port *port) +static int omninet_write_room (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; struct usb_serial_port *wport = serial->port[1]; diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 1e936a1cbe0b..4350990abf14 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -43,29 +43,23 @@ #include /* Function prototypes */ -static int option_open(struct usb_serial_port *port, struct file *filp); -static void option_close(struct usb_serial_port *port, struct file *filp); +static int option_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void option_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); static int option_startup(struct usb_serial *serial); static void option_shutdown(struct usb_serial *serial); -static void option_rx_throttle(struct usb_serial_port *port); -static void option_rx_unthrottle(struct usb_serial_port *port); -static int option_write_room(struct usb_serial_port *port); +static int option_write_room(struct tty_struct *tty); static void option_instat_callback(struct urb *urb); -static int option_write(struct usb_serial_port *port, +static int option_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); - -static int option_chars_in_buffer(struct usb_serial_port *port); -static int option_ioctl(struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg); -static void option_set_termios(struct usb_serial_port *port, - struct ktermios *old); -static void option_break_ctl(struct usb_serial_port *port, int break_state); -static int option_tiocmget(struct usb_serial_port *port, struct file *file); -static int option_tiocmset(struct usb_serial_port *port, struct file *file, +static int option_chars_in_buffer(struct tty_struct *tty); +static void option_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old); +static int option_tiocmget(struct tty_struct *tty, struct file *file); +static int option_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); -static int option_send_setup(struct usb_serial_port *port); +static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *port); /* Vendor and product IDs */ #define OPTION_VENDOR_ID 0x0AF0 @@ -342,11 +336,7 @@ static struct usb_serial_driver option_1port_device = { .write = option_write, .write_room = option_write_room, .chars_in_buffer = option_chars_in_buffer, - .throttle = option_rx_throttle, - .unthrottle = option_rx_unthrottle, - .ioctl = option_ioctl, .set_termios = option_set_termios, - .break_ctl = option_break_ctl, .tiocmget = option_tiocmget, .tiocmset = option_tiocmset, .attach = option_startup, @@ -417,33 +407,18 @@ static void __exit option_exit(void) module_init(option_init); module_exit(option_exit); -static void option_rx_throttle(struct usb_serial_port *port) -{ - dbg("%s", __func__); -} - -static void option_rx_unthrottle(struct usb_serial_port *port) -{ - dbg("%s", __func__); -} - -static void option_break_ctl(struct usb_serial_port *port, int break_state) -{ - /* Unfortunately, I don't know how to send a break */ - dbg("%s", __func__); -} - -static void option_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void option_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { dbg("%s", __func__); /* Doesn't support option setting */ - tty_termios_copy_hw(port->tty->termios, old_termios); - option_send_setup(port); + tty_termios_copy_hw(tty->termios, old_termios); + option_send_setup(tty, port); } -static int option_tiocmget(struct usb_serial_port *port, struct file *file) +static int option_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; unsigned int value; struct option_port_private *portdata; @@ -459,9 +434,10 @@ static int option_tiocmget(struct usb_serial_port *port, struct file *file) return value; } -static int option_tiocmset(struct usb_serial_port *port, struct file *file, +static int option_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct option_port_private *portdata; portdata = usb_get_serial_port_data(port); @@ -476,17 +452,11 @@ static int option_tiocmset(struct usb_serial_port *port, struct file *file, portdata->rts_state = 0; if (clear & TIOCM_DTR) portdata->dtr_state = 0; - return option_send_setup(port); -} - -static int option_ioctl(struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return -ENOIOCTLCMD; + return option_send_setup(tty, port); } /* Write */ -static int option_write(struct usb_serial_port *port, +static int option_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { struct option_port_private *portdata; @@ -562,7 +532,7 @@ static void option_indat_callback(struct urb *urb) dbg("%s: nonzero status: %d on endpoint %02x.", __func__, status, endpoint); } else { - tty = port->tty; + tty = port->port.tty; if (urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -572,7 +542,7 @@ static void option_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - if (port->open_count && status != -ESHUTDOWN) { + if (port->port.count && status != -ESHUTDOWN) { err = usb_submit_urb(urb, GFP_ATOMIC); if (err) printk(KERN_ERR "%s: resubmit read urb failed. " @@ -638,9 +608,9 @@ static void option_instat_callback(struct urb *urb) portdata->dsr_state = ((signals & 0x02) ? 1 : 0); portdata->ri_state = ((signals & 0x08) ? 1 : 0); - if (port->tty && !C_CLOCAL(port->tty) && + if (port->port.tty && !C_CLOCAL(port->port.tty) && old_dcd_state && !portdata->dcd_state) - tty_hangup(port->tty); + tty_hangup(port->port.tty); } else { dbg("%s: type %x req %x", __func__, req_pkt->bRequestType,req_pkt->bRequest); @@ -658,8 +628,9 @@ static void option_instat_callback(struct urb *urb) } } -static int option_write_room(struct usb_serial_port *port) +static int option_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct option_port_private *portdata; int i; int data_len = 0; @@ -678,8 +649,9 @@ static int option_write_room(struct usb_serial_port *port) return data_len; } -static int option_chars_in_buffer(struct usb_serial_port *port) +static int option_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct option_port_private *portdata; int i; int data_len = 0; @@ -698,7 +670,8 @@ static int option_chars_in_buffer(struct usb_serial_port *port) return data_len; } -static int option_open(struct usb_serial_port *port, struct file *filp) +static int option_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct option_port_private *portdata; struct usb_serial *serial = port->serial; @@ -748,14 +721,16 @@ static int option_open(struct usb_serial_port *port, struct file *filp) usb_pipeout(urb->pipe), 0); */ } - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; - option_send_setup(port); + option_send_setup(tty, port); return (0); } -static void option_close(struct usb_serial_port *port, struct file *filp) +static void option_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { int i; struct usb_serial *serial = port->serial; @@ -770,7 +745,7 @@ static void option_close(struct usb_serial_port *port, struct file *filp) if (serial->dev) { mutex_lock(&serial->disc_mutex); if (!serial->disconnected) - option_send_setup(port); + option_send_setup(tty, port); mutex_unlock(&serial->disc_mutex); /* Stop reading/writing urbs */ @@ -779,7 +754,7 @@ static void option_close(struct usb_serial_port *port, struct file *filp) for (i = 0; i < N_OUT_URB; i++) usb_kill_urb(portdata->out_urbs[i]); } - port->tty = NULL; + port->port.tty = NULL; /* FIXME */ } /* Helper functions used by option_setup_urbs */ @@ -841,7 +816,8 @@ static void option_setup_urbs(struct usb_serial *serial) * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN * CDC. */ -static int option_send_setup(struct usb_serial_port *port) +static int option_send_setup(struct tty_struct *tty, + struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct option_port_private *portdata; @@ -850,7 +826,7 @@ static int option_send_setup(struct usb_serial_port *port) portdata = usb_get_serial_port_data(port); - if (port->tty) { + if (tty) { int val = 0; if (portdata->dtr_state) val |= 0x01; @@ -861,7 +837,6 @@ static int option_send_setup(struct usb_serial_port *port) usb_rcvctrlpipe(serial->dev, 0), 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT); } - return 0; } diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index a9625c180dc3..069d276a5276 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -140,22 +140,23 @@ struct oti6858_control_pkt { && ((a)->frame_fmt == (priv)->pending_setup.frame_fmt) ) /* function prototypes */ -static int oti6858_open(struct usb_serial_port *port, struct file *filp); -static void oti6858_close(struct usb_serial_port *port, struct file *filp); -static void oti6858_set_termios(struct usb_serial_port *port, - struct ktermios *old); -static int oti6858_ioctl(struct usb_serial_port *port, struct file *file, +static int oti6858_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static void oti6858_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +static void oti6858_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old); +static int oti6858_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); static void oti6858_read_int_callback(struct urb *urb); static void oti6858_read_bulk_callback(struct urb *urb); static void oti6858_write_bulk_callback(struct urb *urb); -static int oti6858_write(struct usb_serial_port *port, +static int oti6858_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); -static int oti6858_write_room(struct usb_serial_port *port); -static void oti6858_break_ctl(struct usb_serial_port *port, int break_state); -static int oti6858_chars_in_buffer(struct usb_serial_port *port); -static int oti6858_tiocmget(struct usb_serial_port *port, struct file *file); -static int oti6858_tiocmset(struct usb_serial_port *port, struct file *file, +static int oti6858_write_room(struct tty_struct *tty); +static int oti6858_chars_in_buffer(struct tty_struct *tty); +static int oti6858_tiocmget(struct tty_struct *tty, struct file *file); +static int oti6858_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); static int oti6858_startup(struct usb_serial *serial); static void oti6858_shutdown(struct usb_serial *serial); @@ -184,7 +185,6 @@ static struct usb_serial_driver oti6858_device = { .close = oti6858_close, .write = oti6858_write, .ioctl = oti6858_ioctl, - .break_ctl = oti6858_break_ctl, .set_termios = oti6858_set_termios, .tiocmget = oti6858_tiocmget, .tiocmset = oti6858_tiocmset, @@ -395,7 +395,7 @@ static int oti6858_startup(struct usb_serial *serial) return -ENOMEM; } -static int oti6858_write(struct usb_serial_port *port, +static int oti6858_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { struct oti6858_private *priv = usb_get_serial_port_data(port); @@ -413,8 +413,9 @@ static int oti6858_write(struct usb_serial_port *port, return count; } -static int oti6858_write_room(struct usb_serial_port *port) +static int oti6858_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct oti6858_private *priv = usb_get_serial_port_data(port); int room = 0; unsigned long flags; @@ -428,8 +429,9 @@ static int oti6858_write_room(struct usb_serial_port *port) return room; } -static int oti6858_chars_in_buffer(struct usb_serial_port *port) +static int oti6858_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct oti6858_private *priv = usb_get_serial_port_data(port); int chars = 0; unsigned long flags; @@ -443,8 +445,8 @@ static int oti6858_chars_in_buffer(struct usb_serial_port *port) return chars; } -static void oti6858_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void oti6858_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct oti6858_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -455,22 +457,22 @@ static void oti6858_set_termios(struct usb_serial_port *port, dbg("%s(port = %d)", __func__, port->number); - if (!port->tty || !port->tty->termios) { + if (!tty) { dbg("%s(): no tty structures", __func__); return; } spin_lock_irqsave(&priv->lock, flags); if (!priv->flags.termios_initialized) { - *(port->tty->termios) = tty_std_termios; - port->tty->termios->c_cflag = B38400 | CS8 | CREAD | HUPCL | CLOCAL; + *(tty->termios) = tty_std_termios; + tty->termios->c_cflag = B38400 | CS8 | CREAD | HUPCL | CLOCAL; + tty->termios->c_ispeed = 38400; + tty->termios->c_ospeed = 38400; priv->flags.termios_initialized = 1; - port->tty->termios->c_ispeed = 38400; - port->tty->termios->c_ospeed = 38400; } spin_unlock_irqrestore(&priv->lock, flags); - cflag = port->tty->termios->c_cflag; + cflag = tty->termios->c_cflag; spin_lock_irqsave(&priv->lock, flags); divisor = priv->pending_setup.divisor; @@ -500,7 +502,7 @@ static void oti6858_set_termios(struct usb_serial_port *port, * guarantee that any other baud rate will work (especially * the higher ones) */ - br = tty_get_baud_rate(port->tty); + br = tty_get_baud_rate(tty); if (br == 0) { divisor = 0; } else { @@ -511,7 +513,7 @@ static void oti6858_set_termios(struct usb_serial_port *port, new_divisor = (96000000 + 8 * br) / (16 * br); real_br = 96000000 / (16 * new_divisor); divisor = cpu_to_le16(new_divisor); - tty_encode_baud_rate(port->tty, real_br, real_br); + tty_encode_baud_rate(tty, real_br, real_br); } frame_fmt &= ~FMT_STOP_BITS_MASK; @@ -564,7 +566,8 @@ static void oti6858_set_termios(struct usb_serial_port *port, spin_unlock_irqrestore(&priv->lock, flags); } -static int oti6858_open(struct usb_serial_port *port, struct file *filp) +static int oti6858_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct oti6858_private *priv = usb_get_serial_port_data(port); struct ktermios tmp_termios; @@ -578,7 +581,7 @@ static int oti6858_open(struct usb_serial_port *port, struct file *filp) usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); - if (port->open_count != 1) + if (port->port.count != 1) return 0; if ((buf = kmalloc(OTI6858_CTRL_PKT_SIZE, GFP_KERNEL)) == NULL) { @@ -617,18 +620,19 @@ static int oti6858_open(struct usb_serial_port *port, struct file *filp) if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" " with error %d\n", __func__, result); - oti6858_close(port, NULL); + oti6858_close(tty, port, NULL); return -EPROTO; } /* setup termios */ - if (port->tty) - oti6858_set_termios(port, &tmp_termios); + if (tty) + oti6858_set_termios(tty, port, &tmp_termios); return 0; } -static void oti6858_close(struct usb_serial_port *port, struct file *filp) +static void oti6858_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct oti6858_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -641,7 +645,7 @@ static void oti6858_close(struct usb_serial_port *port, struct file *filp) spin_lock_irqsave(&priv->lock, flags); timeout = 30 * HZ; /* PL2303_CLOSING_WAIT */ init_waitqueue_entry(&wait, current); - add_wait_queue(&port->tty->write_wait, &wait); + add_wait_queue(&tty->write_wait, &wait); dbg("%s(): entering wait loop", __func__); for (;;) { set_current_state(TASK_INTERRUPTIBLE); @@ -654,7 +658,7 @@ static void oti6858_close(struct usb_serial_port *port, struct file *filp) spin_lock_irqsave(&priv->lock, flags); } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->tty->write_wait, &wait); + remove_wait_queue(&tty->write_wait, &wait); dbg("%s(): after wait loop", __func__); /* clear out any remaining data in the buffer */ @@ -669,7 +673,7 @@ static void oti6858_close(struct usb_serial_port *port, struct file *filp) /* data is in the buffer to compute a delay */ /* that is not unnecessarily long) */ /* FIXME - bps = tty_get_baud_rate(port->tty); + bps = tty_get_baud_rate(tty); if (bps > 1200) timeout = max((HZ*2560)/bps,HZ/10); else @@ -690,7 +694,7 @@ static void oti6858_close(struct usb_serial_port *port, struct file *filp) usb_kill_urb(port->interrupt_in_urb); /* - if (port->tty && (port->tty->termios->c_cflag) & HUPCL) { + if (tty && (tty->termios->c_cflag) & HUPCL) { // drop DTR and RTS spin_lock_irqsave(&priv->lock, flags); priv->pending_setup.control &= ~CONTROL_MASK; @@ -699,9 +703,10 @@ static void oti6858_close(struct usb_serial_port *port, struct file *filp) */ } -static int oti6858_tiocmset(struct usb_serial_port *port, struct file *file, +static int oti6858_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct oti6858_private *priv = usb_get_serial_port_data(port); unsigned long flags; u8 control; @@ -732,8 +737,9 @@ static int oti6858_tiocmset(struct usb_serial_port *port, struct file *file, return 0; } -static int oti6858_tiocmget(struct usb_serial_port *port, struct file *file) +static int oti6858_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct oti6858_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned pin_state; @@ -802,26 +808,15 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) return 0; } -static int oti6858_ioctl(struct usb_serial_port *port, struct file *file, +static int oti6858_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { - void __user *user_arg = (void __user *) arg; - unsigned int x; + struct usb_serial_port *port = tty->driver_data; dbg("%s(port = %d, cmd = 0x%04x, arg = 0x%08lx)", __func__, port->number, cmd, arg); switch (cmd) { - case TIOCMBIS: - if (copy_from_user(&x, user_arg, sizeof(x))) - return -EFAULT; - return oti6858_tiocmset(port, NULL, x, 0); - - case TIOCMBIC: - if (copy_from_user(&x, user_arg, sizeof(x))) - return -EFAULT; - return oti6858_tiocmset(port, NULL, 0, x); - case TIOCMIWAIT: dbg("%s(): TIOCMIWAIT", __func__); return wait_modem_info(port, arg); @@ -834,24 +829,6 @@ static int oti6858_ioctl(struct usb_serial_port *port, struct file *file, return -ENOIOCTLCMD; } -static void oti6858_break_ctl(struct usb_serial_port *port, int break_state) -{ - int state; - - dbg("%s(port = %d)", __func__, port->number); - - state = (break_state == 0) ? 0 : 1; - dbg("%s(): turning break %s", __func__, state ? "on" : "off"); - - /* FIXME */ -/* - result = usb_control_msg (serial->dev, usb_sndctrlpipe (serial->dev, 0), - BREAK_REQUEST, BREAK_REQUEST_TYPE, state, - 0, NULL, 0, 100); - if (result != 0) - dbg("%s(): error sending break", __func__); - */ -} static void oti6858_shutdown(struct usb_serial *serial) { @@ -1002,7 +979,7 @@ static void oti6858_read_bulk_callback(struct urb *urb) spin_unlock_irqrestore(&priv->lock, flags); if (status != 0) { - if (!port->open_count) { + if (!port->port.count) { dbg("%s(): port is closed, exiting", __func__); return; } @@ -1020,14 +997,14 @@ static void oti6858_read_bulk_callback(struct urb *urb) return; } - tty = port->tty; + tty = port->port.tty; if (tty != NULL && urb->actual_length > 0) { tty_insert_flip_string(tty, data, urb->actual_length); tty_flip_buffer_push(tty); } // schedule the interrupt urb if we are still open */ - if (port->open_count != 0) { + if (port->port.count != 0) { port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); if (result != 0) { diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 2a0dd1b50dc4..a0016725d314 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -458,8 +458,8 @@ static void pl2303_send(struct usb_serial_port *port) usb_serial_port_softint(port); } -static int pl2303_write(struct usb_serial_port *port, const unsigned char *buf, - int count) +static int pl2303_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -478,8 +478,9 @@ static int pl2303_write(struct usb_serial_port *port, const unsigned char *buf, return count; } -static int pl2303_write_room(struct usb_serial_port *port) +static int pl2303_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct pl2303_private *priv = usb_get_serial_port_data(port); int room = 0; unsigned long flags; @@ -494,8 +495,9 @@ static int pl2303_write_room(struct usb_serial_port *port) return room; } -static int pl2303_chars_in_buffer(struct usb_serial_port *port) +static int pl2303_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct pl2303_private *priv = usb_get_serial_port_data(port); int chars = 0; unsigned long flags; @@ -510,8 +512,8 @@ static int pl2303_chars_in_buffer(struct usb_serial_port *port) return chars; } -static void pl2303_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void pl2303_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct usb_serial *serial = port->serial; struct pl2303_private *priv = usb_get_serial_port_data(port); @@ -526,11 +528,10 @@ static void pl2303_set_termios(struct usb_serial_port *port, spin_lock_irqsave(&priv->lock, flags); if (!priv->termios_initialized) { - *(port->tty->termios) = tty_std_termios; - port->tty->termios->c_cflag = B9600 | CS8 | CREAD | - HUPCL | CLOCAL; - port->tty->termios->c_ispeed = 9600; - port->tty->termios->c_ospeed = 9600; + *(tty->termios) = tty_std_termios; + tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; + tty->termios->c_ispeed = 9600; + tty->termios->c_ospeed = 9600; priv->termios_initialized = 1; } spin_unlock_irqrestore(&priv->lock, flags); @@ -539,16 +540,16 @@ static void pl2303_set_termios(struct usb_serial_port *port, serial settings even to the same values as before. Thus we actually need to filter in this specific case */ - if (!tty_termios_hw_change(port->tty->termios, old_termios)) + if (!tty_termios_hw_change(tty->termios, old_termios)) return; - cflag = port->tty->termios->c_cflag; + cflag = tty->termios->c_cflag; buf = kzalloc(7, GFP_KERNEL); if (!buf) { dev_err(&port->dev, "%s - out of memory.\n", __func__); /* Report back no change occurred */ - *port->tty->termios = *old_termios; + *tty->termios = *old_termios; return; } @@ -569,7 +570,7 @@ static void pl2303_set_termios(struct usb_serial_port *port, dbg("%s - data bits = %d", __func__, buf[6]); } - baud = tty_get_baud_rate(port->tty);; + baud = tty_get_baud_rate(tty); dbg("%s - baud = %d", __func__, baud); if (baud) { buf[0] = baud & 0xff; @@ -646,12 +647,13 @@ static void pl2303_set_termios(struct usb_serial_port *port, /* FIXME: Need to read back resulting baud rate */ if (baud) - tty_encode_baud_rate(port->tty, baud, baud); + tty_encode_baud_rate(tty, baud, baud); kfree(buf); } -static void pl2303_close(struct usb_serial_port *port, struct file *filp) +static void pl2303_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -666,7 +668,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp) spin_lock_irqsave(&priv->lock, flags); timeout = PL2303_CLOSING_WAIT; init_waitqueue_entry(&wait, current); - add_wait_queue(&port->tty->write_wait, &wait); + add_wait_queue(&tty->write_wait, &wait); for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (pl2303_buf_data_avail(priv->buf) == 0 || @@ -678,7 +680,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp) spin_lock_irqsave(&priv->lock, flags); } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->tty->write_wait, &wait); + remove_wait_queue(&tty->write_wait, &wait); /* clear out any remaining data in the buffer */ pl2303_buf_clear(priv->buf); spin_unlock_irqrestore(&priv->lock, flags); @@ -690,7 +692,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp) /* for lower rates we should really know how much */ /* data is in the buffer to compute a delay */ /* that is not unnecessarily long) */ - bps = tty_get_baud_rate(port->tty); + bps = tty_get_baud_rate(tty); if (bps > 1200) timeout = max((HZ*2560)/bps,HZ/10); else @@ -703,8 +705,8 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp) usb_kill_urb(port->read_urb); usb_kill_urb(port->interrupt_in_urb); - if (port->tty) { - c_cflag = port->tty->termios->c_cflag; + if (tty) { + c_cflag = tty->termios->c_cflag; if (c_cflag & HUPCL) { /* drop DTR and RTS */ spin_lock_irqsave(&priv->lock, flags); @@ -715,7 +717,8 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp) } } -static int pl2303_open(struct usb_serial_port *port, struct file *filp) +static int pl2303_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct ktermios tmp_termios; struct usb_serial *serial = port->serial; @@ -734,9 +737,8 @@ static int pl2303_open(struct usb_serial_port *port, struct file *filp) } /* Setup termios */ - if (port->tty) { - pl2303_set_termios(port, &tmp_termios); - } + if (tty) + pl2303_set_termios(tty, port, &tmp_termios); //FIXME: need to assert RTS and DTR if CRTSCTS off @@ -746,7 +748,7 @@ static int pl2303_open(struct usb_serial_port *port, struct file *filp) if (result) { dev_err(&port->dev, "%s - failed submitting read urb," " error %d\n", __func__, result); - pl2303_close(port, NULL); + pl2303_close(tty, port, NULL); return -EPROTO; } @@ -756,15 +758,16 @@ static int pl2303_open(struct usb_serial_port *port, struct file *filp) if (result) { dev_err(&port->dev, "%s - failed submitting interrupt urb," " error %d\n", __func__, result); - pl2303_close(port, NULL); + pl2303_close(tty, port, NULL); return -EPROTO; } return 0; } -static int pl2303_tiocmset(struct usb_serial_port *port, struct file *file, +static int pl2303_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; u8 control; @@ -787,8 +790,9 @@ static int pl2303_tiocmset(struct usb_serial_port *port, struct file *file, return set_control_lines(port->serial->dev, control); } -static int pl2303_tiocmget(struct usb_serial_port *port, struct file *file) +static int pl2303_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int mcr; @@ -853,9 +857,10 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) return 0; } -static int pl2303_ioctl(struct usb_serial_port *port, struct file *file, +static int pl2303_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd); switch (cmd) { @@ -871,8 +876,9 @@ static int pl2303_ioctl(struct usb_serial_port *port, struct file *file, return -ENOIOCTLCMD; } -static void pl2303_break_ctl(struct usb_serial_port *port, int break_state) +static void pl2303_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct usb_serial *serial = port->serial; u16 state; int result; @@ -1001,7 +1007,7 @@ static void pl2303_read_bulk_callback(struct urb *urb) if (status) { dbg("%s - urb status = %d", __func__, status); - if (!port->open_count) { + if (!port->port.count) { dbg("%s - port is closed, exiting.", __func__); return; } @@ -1044,7 +1050,7 @@ static void pl2303_read_bulk_callback(struct urb *urb) tty_flag = TTY_FRAME; dbg("%s - tty_flag = %d", __func__, tty_flag); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length + 1); /* overrun is special, not associated with a char */ @@ -1056,7 +1062,7 @@ static void pl2303_read_bulk_callback(struct urb *urb) } /* Schedule the next read _if_ we are still open */ - if (port->open_count) { + if (port->port.count) { urb->dev = port->serial->dev; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 94bddf06ea4f..f823e4dcea1e 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -229,8 +229,8 @@ static void safe_read_bulk_callback (struct urb *urb) int actual_length = data[length - 2] >> 2; if (actual_length <= (length - 2)) { info ("%s - actual: %d", __func__, actual_length); - tty_insert_flip_string(port->tty, data, actual_length); - tty_flip_buffer_push (port->tty); + tty_insert_flip_string(port->port.tty, data, actual_length); + tty_flip_buffer_push (port->port.tty); } else { err ("%s - inconsistent lengths %d:%d", __func__, actual_length, length); @@ -239,8 +239,8 @@ static void safe_read_bulk_callback (struct urb *urb) err ("%s - bad CRC %x", __func__, fcs); } } else { - tty_insert_flip_string(port->tty, data, length); - tty_flip_buffer_push (port->tty); + tty_insert_flip_string(port->port.tty, data, length); + tty_flip_buffer_push (port->port.tty); } /* Continue trying to always read */ @@ -255,7 +255,8 @@ static void safe_read_bulk_callback (struct urb *urb) } } -static int safe_write (struct usb_serial_port *port, const unsigned char *buf, int count) +static int safe_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { unsigned char *data; int result; @@ -349,8 +350,9 @@ static int safe_write (struct usb_serial_port *port, const unsigned char *buf, i return (count); } -static int safe_write_room (struct usb_serial_port *port) +static int safe_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; int room = 0; /* Default: no room */ unsigned long flags; diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 29074c1ba22b..892020d48555 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -250,7 +250,8 @@ struct sierra_port_private { int ri_state; }; -static int sierra_send_setup(struct usb_serial_port *port) +static int sierra_send_setup(struct tty_struct *tty, + struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct sierra_port_private *portdata; @@ -260,7 +261,7 @@ static int sierra_send_setup(struct usb_serial_port *port) portdata = usb_get_serial_port_data(port); - if (port->tty) { + if (tty) { int val = 0; if (portdata->dtr_state) val |= 0x01; @@ -284,32 +285,17 @@ static int sierra_send_setup(struct usb_serial_port *port) return 0; } -static void sierra_rx_throttle(struct usb_serial_port *port) +static void sierra_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { dbg("%s", __func__); + tty_termios_copy_hw(tty->termios, old_termios); + sierra_send_setup(tty, port); } -static void sierra_rx_unthrottle(struct usb_serial_port *port) -{ - dbg("%s", __func__); -} - -static void sierra_break_ctl(struct usb_serial_port *port, int break_state) -{ - /* Unfortunately, I don't know how to send a break */ - dbg("%s", __func__); -} - -static void sierra_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) -{ - dbg("%s", __func__); - tty_termios_copy_hw(port->tty->termios, old_termios); - sierra_send_setup(port); -} - -static int sierra_tiocmget(struct usb_serial_port *port, struct file *file) +static int sierra_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; unsigned int value; struct sierra_port_private *portdata; @@ -325,9 +311,10 @@ static int sierra_tiocmget(struct usb_serial_port *port, struct file *file) return value; } -static int sierra_tiocmset(struct usb_serial_port *port, struct file *file, +static int sierra_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct sierra_port_private *portdata; portdata = usb_get_serial_port_data(port); @@ -341,13 +328,7 @@ static int sierra_tiocmset(struct usb_serial_port *port, struct file *file, portdata->rts_state = 0; if (clear & TIOCM_DTR) portdata->dtr_state = 0; - return sierra_send_setup(port); -} - -static int sierra_ioctl(struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return -ENOIOCTLCMD; + return sierra_send_setup(tty, port); } static void sierra_outdat_callback(struct urb *urb) @@ -374,8 +355,8 @@ static void sierra_outdat_callback(struct urb *urb) } /* Write */ -static int sierra_write(struct usb_serial_port *port, - const unsigned char *buf, int count) +static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { struct sierra_port_private *portdata = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; @@ -463,7 +444,7 @@ static void sierra_indat_callback(struct urb *urb) dbg("%s: nonzero status: %d on endpoint %02x.", __func__, status, endpoint); } else { - tty = port->tty; + tty = port->port.tty; if (urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); @@ -473,7 +454,7 @@ static void sierra_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - if (port->open_count && status != -ESHUTDOWN) { + if (port->port.count && status != -ESHUTDOWN) { err = usb_submit_urb(urb, GFP_ATOMIC); if (err) dev_err(&port->dev, "resubmit read urb failed." @@ -517,9 +498,9 @@ static void sierra_instat_callback(struct urb *urb) portdata->dsr_state = ((signals & 0x02) ? 1 : 0); portdata->ri_state = ((signals & 0x08) ? 1 : 0); - if (port->tty && !C_CLOCAL(port->tty) && + if (port->port.tty && !C_CLOCAL(port->port.tty) && old_dcd_state && !portdata->dcd_state) - tty_hangup(port->tty); + tty_hangup(port->port.tty); } else { dbg("%s: type %x req %x", __func__, req_pkt->bRequestType, req_pkt->bRequest); @@ -537,8 +518,9 @@ static void sierra_instat_callback(struct urb *urb) } } -static int sierra_write_room(struct usb_serial_port *port) +static int sierra_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct sierra_port_private *portdata = usb_get_serial_port_data(port); unsigned long flags; @@ -557,22 +539,8 @@ static int sierra_write_room(struct usb_serial_port *port) return 2048; } -static int sierra_chars_in_buffer(struct usb_serial_port *port) -{ - dbg("%s - port %d", __func__, port->number); - - /* - * We can't really account for how much data we - * have sent out, but hasn't made it through to the - * device as we can't see the backend here, so just - * tell the tty layer that everything is flushed. - * - * FIXME: should walk the outstanding urbs info - */ - return 0; -} - -static int sierra_open(struct usb_serial_port *port, struct file *filp) +static int sierra_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct sierra_port_private *portdata; struct usb_serial *serial = port->serial; @@ -612,9 +580,10 @@ static int sierra_open(struct usb_serial_port *port, struct file *filp) } } - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; - sierra_send_setup(port); + sierra_send_setup(tty, port); /* start up the interrupt endpoint if we have one */ if (port->interrupt_in_urb) { @@ -626,7 +595,8 @@ static int sierra_open(struct usb_serial_port *port, struct file *filp) return 0; } -static void sierra_close(struct usb_serial_port *port, struct file *filp) +static void sierra_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { int i; struct usb_serial *serial = port->serial; @@ -641,7 +611,7 @@ static void sierra_close(struct usb_serial_port *port, struct file *filp) if (serial->dev) { mutex_lock(&serial->disc_mutex); if (!serial->disconnected) - sierra_send_setup(port); + sierra_send_setup(tty, port); mutex_unlock(&serial->disc_mutex); /* Stop reading/writing urbs */ @@ -651,7 +621,7 @@ static void sierra_close(struct usb_serial_port *port, struct file *filp) usb_kill_urb(port->interrupt_in_urb); - port->tty = NULL; + port->port.tty = NULL; /* FIXME */ } static int sierra_startup(struct usb_serial *serial) @@ -754,12 +724,7 @@ static struct usb_serial_driver sierra_device = { .close = sierra_close, .write = sierra_write, .write_room = sierra_write_room, - .chars_in_buffer = sierra_chars_in_buffer, - .throttle = sierra_rx_throttle, - .unthrottle = sierra_rx_unthrottle, - .ioctl = sierra_ioctl, .set_termios = sierra_set_termios, - .break_ctl = sierra_break_ctl, .tiocmget = sierra_tiocmget, .tiocmset = sierra_tiocmset, .attach = sierra_startup, diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 55b2570b8b8b..58495f5cca1f 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -448,7 +448,8 @@ static void spcp8x5_set_workMode(struct usb_device *dev, u16 value, /* close the serial port. We should wait for data sending to device 1st and * then kill all urb. */ -static void spcp8x5_close(struct usb_serial_port *port, struct file *filp) +static void spcp8x5_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct spcp8x5_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -464,7 +465,7 @@ static void spcp8x5_close(struct usb_serial_port *port, struct file *filp) spin_lock_irqsave(&priv->lock, flags); timeout = SPCP8x5_CLOSING_WAIT; init_waitqueue_entry(&wait, current); - add_wait_queue(&port->tty->write_wait, &wait); + add_wait_queue(&tty->write_wait, &wait); for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (ringbuf_avail_data(priv->buf) == 0 || @@ -475,7 +476,7 @@ static void spcp8x5_close(struct usb_serial_port *port, struct file *filp) spin_lock_irqsave(&priv->lock, flags); } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->tty->write_wait, &wait); + remove_wait_queue(&tty->write_wait, &wait); /* clear out any remaining data in the buffer */ clear_ringbuf(priv->buf); @@ -486,7 +487,7 @@ static void spcp8x5_close(struct usb_serial_port *port, struct file *filp) * flow control for data rates of 1200 bps or more, for lower rates we * should really know how much data is in the buffer to compute a delay * that is not unnecessarily long) */ - bps = tty_get_baud_rate(port->tty); + bps = tty_get_baud_rate(tty); if (bps > 1200) timeout = max((HZ*2560) / bps, HZ/10); else @@ -495,8 +496,8 @@ static void spcp8x5_close(struct usb_serial_port *port, struct file *filp) schedule_timeout(timeout); /* clear control lines */ - if (port->tty) { - c_cflag = port->tty->termios->c_cflag; + if (tty) { + c_cflag = tty->termios->c_cflag; if (c_cflag & HUPCL) { spin_lock_irqsave(&priv->lock, flags); priv->line_control = 0; @@ -518,14 +519,14 @@ static void spcp8x5_close(struct usb_serial_port *port, struct file *filp) } /* set the serial param for transfer. we should check if we really need to - * transfer. then if be set flow contorl we should do this too. */ -static void spcp8x5_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) + * transfer. if we set flow control we should do this too. */ +static void spcp8x5_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct usb_serial *serial = port->serial; struct spcp8x5_private *priv = usb_get_serial_port_data(port); unsigned long flags; - unsigned int cflag = port->tty->termios->c_cflag; + unsigned int cflag = tty->termios->c_cflag; unsigned int old_cflag = old_termios->c_cflag; unsigned short uartdata; unsigned char buf[2] = {0, 0}; @@ -533,21 +534,19 @@ static void spcp8x5_set_termios(struct usb_serial_port *port, int i; u8 control; - if ((!port->tty) || (!port->tty->termios)) - return; - /* for the 1st time call this function */ spin_lock_irqsave(&priv->lock, flags); if (!priv->termios_initialized) { - *(port->tty->termios) = tty_std_termios; - port->tty->termios->c_cflag = B115200 | CS8 | CREAD | - HUPCL | CLOCAL; + *(tty->termios) = tty_std_termios; + tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL; + tty->termios->c_ispeed = 115200; + tty->termios->c_ospeed = 115200; priv->termios_initialized = 1; } spin_unlock_irqrestore(&priv->lock, flags); /* check that they really want us to change something */ - if (!tty_termios_hw_change(port->tty->termios, old_termios)) + if (!tty_termios_hw_change(tty->termios, old_termios)) return; /* set DTR/RTS active */ @@ -567,7 +566,7 @@ static void spcp8x5_set_termios(struct usb_serial_port *port, } /* Set Baud Rate */ - baud = tty_get_baud_rate(port->tty);; + baud = tty_get_baud_rate(tty);; switch (baud) { case 300: buf[0] = 0x00; break; case 600: buf[0] = 0x01; break; @@ -643,7 +642,8 @@ static void spcp8x5_set_termios(struct usb_serial_port *port, /* open the serial port. do some usb system call. set termios and get the line * status of the device. then submit the read urb */ -static int spcp8x5_open(struct usb_serial_port *port, struct file *filp) +static int spcp8x5_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { struct ktermios tmp_termios; struct usb_serial *serial = port->serial; @@ -665,7 +665,7 @@ static int spcp8x5_open(struct usb_serial_port *port, struct file *filp) return ret; spin_lock_irqsave(&priv->lock, flags); - if (port->tty->termios->c_cflag & CBAUD) + if (tty && (tty->termios->c_cflag & CBAUD)) priv->line_control = MCR_DTR | MCR_RTS; else priv->line_control = 0; @@ -674,8 +674,8 @@ static int spcp8x5_open(struct usb_serial_port *port, struct file *filp) spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type); /* Setup termios */ - if (port->tty) - spcp8x5_set_termios(port, &tmp_termios); + if (tty) + spcp8x5_set_termios(tty, port, &tmp_termios); spcp8x5_get_msr(serial->dev, &status, priv->type); @@ -690,7 +690,7 @@ static int spcp8x5_open(struct usb_serial_port *port, struct file *filp) port->read_urb->dev = serial->dev; ret = usb_submit_urb(port->read_urb, GFP_KERNEL); if (ret) { - spcp8x5_close(port, NULL); + spcp8x5_close(tty, port, NULL); return -EPROTO; } return 0; @@ -717,7 +717,7 @@ static void spcp8x5_read_bulk_callback(struct urb *urb) /* check the urb status */ if (urb->status) { - if (!port->open_count) + if (!port->port.count) return; if (urb->status == -EPROTO) { /* spcp8x5 mysteriously fails with -EPROTO */ @@ -755,7 +755,7 @@ static void spcp8x5_read_bulk_callback(struct urb *urb) tty_flag = TTY_FRAME; dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length + 1); /* overrun is special, not associated with a char */ @@ -767,7 +767,7 @@ static void spcp8x5_read_bulk_callback(struct urb *urb) } /* Schedule the next read _if_ we are still open */ - if (port->open_count) { + if (port->port.count) { urb->dev = port->serial->dev; result = usb_submit_urb(urb , GFP_ATOMIC); if (result) @@ -866,7 +866,7 @@ static void spcp8x5_write_bulk_callback(struct urb *urb) } /* write data to ring buffer. and then start the write transfer */ -static int spcp8x5_write(struct usb_serial_port *port, +static int spcp8x5_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { struct spcp8x5_private *priv = usb_get_serial_port_data(port); @@ -925,9 +925,10 @@ static int spcp8x5_wait_modem_info(struct usb_serial_port *port, return 0; } -static int spcp8x5_ioctl(struct usb_serial_port *port, struct file *file, +static int spcp8x5_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd); switch (cmd) { @@ -943,9 +944,10 @@ static int spcp8x5_ioctl(struct usb_serial_port *port, struct file *file, return -ENOIOCTLCMD; } -static int spcp8x5_tiocmset(struct usb_serial_port *port, struct file *file, +static int spcp8x5_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct spcp8x5_private *priv = usb_get_serial_port_data(port); unsigned long flags; u8 control; @@ -965,8 +967,9 @@ static int spcp8x5_tiocmset(struct usb_serial_port *port, struct file *file, return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); } -static int spcp8x5_tiocmget(struct usb_serial_port *port, struct file *file) +static int spcp8x5_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct spcp8x5_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int mcr; @@ -989,8 +992,9 @@ static int spcp8x5_tiocmget(struct usb_serial_port *port, struct file *file) } /* get the avail space room in ring buffer */ -static int spcp8x5_write_room(struct usb_serial_port *port) +static int spcp8x5_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct spcp8x5_private *priv = usb_get_serial_port_data(port); int room = 0; unsigned long flags; @@ -1003,8 +1007,9 @@ static int spcp8x5_write_room(struct usb_serial_port *port) } /* get the number of avail data in write ring buffer */ -static int spcp8x5_chars_in_buffer(struct usb_serial_port *port) +static int spcp8x5_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct spcp8x5_private *priv = usb_get_serial_port_data(port); int chars = 0; unsigned long flags; diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index a26a629dfc4f..48831a755fc1 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -70,6 +70,7 @@ #include #include +#include #include #include #include @@ -149,21 +150,23 @@ struct ti_device { static int ti_startup(struct usb_serial *serial); static void ti_shutdown(struct usb_serial *serial); -static int ti_open(struct usb_serial_port *port, struct file *file); -static void ti_close(struct usb_serial_port *port, struct file *file); -static int ti_write(struct usb_serial_port *port, const unsigned char *data, - int count); -static int ti_write_room(struct usb_serial_port *port); -static int ti_chars_in_buffer(struct usb_serial_port *port); -static void ti_throttle(struct usb_serial_port *port); -static void ti_unthrottle(struct usb_serial_port *port); -static int ti_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg); -static void ti_set_termios(struct usb_serial_port *port, +static int ti_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *file); +static void ti_close(struct tty_struct *tty, struct usb_serial_port *port, + struct file *file); +static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *data, int count); +static int ti_write_room(struct tty_struct *tty); +static int ti_chars_in_buffer(struct tty_struct *tty); +static void ti_throttle(struct tty_struct *tty); +static void ti_unthrottle(struct tty_struct *tty); +static int ti_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); +static void ti_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios); -static int ti_tiocmget(struct usb_serial_port *port, struct file *file); -static int ti_tiocmset(struct usb_serial_port *port, struct file *file, +static int ti_tiocmget(struct tty_struct *tty, struct file *file); +static int ti_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); -static void ti_break(struct usb_serial_port *port, int break_state); +static void ti_break(struct tty_struct *tty, int break_state); static void ti_interrupt_callback(struct urb *urb); static void ti_bulk_in_callback(struct urb *urb); static void ti_bulk_out_callback(struct urb *urb); @@ -192,8 +195,7 @@ static int ti_command_in_sync(struct ti_device *tdev, __u8 command, static int ti_write_byte(struct ti_device *tdev, unsigned long addr, __u8 mask, __u8 byte); -static int ti_download_firmware(struct ti_device *tdev, char *fw_name); - +static int ti_download_firmware(struct ti_device *tdev, int type); /* circular buffer */ static struct circ_buf *ti_buf_alloc(void); @@ -430,11 +432,10 @@ static int ti_startup(struct usb_serial *serial) /* if we have only 1 configuration, download firmware */ if (dev->descriptor.bNumConfigurations == 1) { - if (tdev->td_is_3410) - status = ti_download_firmware(tdev, "ti_3410.fw"); + status = ti_download_firmware(tdev, 3410); else - status = ti_download_firmware(tdev, "ti_5052.fw"); + status = ti_download_firmware(tdev, 5052); if (status) goto free_tdev; @@ -519,7 +520,8 @@ static void ti_shutdown(struct usb_serial *serial) } -static int ti_open(struct usb_serial_port *port, struct file *file) +static int ti_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *file) { struct ti_port *tport = usb_get_serial_port_data(port); struct ti_device *tdev; @@ -543,9 +545,9 @@ static int ti_open(struct usb_serial_port *port, struct file *file) if (mutex_lock_interruptible(&tdev->td_open_close_lock)) return -ERESTARTSYS; - if (port->tty) - port->tty->low_latency = - (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0; + if (tty) + tty->low_latency = + (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0; port_number = port->number - port->serial->minor; @@ -573,7 +575,8 @@ static int ti_open(struct usb_serial_port *port, struct file *file) } } - ti_set_termios(port, port->tty->termios); + if (tty) + ti_set_termios(tty, port, tty->termios); dbg("%s - sending TI_OPEN_PORT", __func__); status = ti_command_out_sync(tdev, TI_OPEN_PORT, @@ -610,7 +613,8 @@ static int ti_open(struct usb_serial_port *port, struct file *file) usb_clear_halt(dev, port->write_urb->pipe); usb_clear_halt(dev, port->read_urb->pipe); - ti_set_termios(port, port->tty->termios); + if (tty) + ti_set_termios(tty, port, tty->termios); dbg("%s - sending TI_OPEN_PORT (2)", __func__); status = ti_command_out_sync(tdev, TI_OPEN_PORT, @@ -661,7 +665,8 @@ release_lock: } -static void ti_close(struct usb_serial_port *port, struct file *file) +static void ti_close(struct tty_struct *tty, struct usb_serial_port *port, + struct file *file) { struct ti_device *tdev; struct ti_port *tport; @@ -707,8 +712,8 @@ static void ti_close(struct usb_serial_port *port, struct file *file) } -static int ti_write(struct usb_serial_port *port, const unsigned char *data, - int count) +static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *data, int count) { struct ti_port *tport = usb_get_serial_port_data(port); unsigned long flags; @@ -733,8 +738,9 @@ static int ti_write(struct usb_serial_port *port, const unsigned char *data, } -static int ti_write_room(struct usb_serial_port *port) +static int ti_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); int room = 0; unsigned long flags; @@ -753,8 +759,9 @@ static int ti_write_room(struct usb_serial_port *port) } -static int ti_chars_in_buffer(struct usb_serial_port *port) +static int ti_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); int chars = 0; unsigned long flags; @@ -773,32 +780,26 @@ static int ti_chars_in_buffer(struct usb_serial_port *port) } -static void ti_throttle(struct usb_serial_port *port) +static void ti_throttle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); - struct tty_struct *tty; dbg("%s - port %d", __func__, port->number); if (tport == NULL) return; - tty = port->tty; - if (!tty) { - dbg("%s - no tty", __func__); - return; - } - if (I_IXOFF(tty) || C_CRTSCTS(tty)) ti_stop_read(tport, tty); } -static void ti_unthrottle(struct usb_serial_port *port) +static void ti_unthrottle(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); - struct tty_struct *tty; int status; dbg("%s - port %d", __func__, port->number); @@ -806,12 +807,6 @@ static void ti_unthrottle(struct usb_serial_port *port) if (tport == NULL) return; - tty = port->tty; - if (!tty) { - dbg("%s - no tty", __func__); - return; - } - if (I_IXOFF(tty) || C_CRTSCTS(tty)) { status = ti_restart_read(tport, tty); if (status) @@ -820,9 +815,10 @@ static void ti_unthrottle(struct usb_serial_port *port) } -static int ti_ioctl(struct usb_serial_port *port, struct file *file, +static int ti_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); struct async_icount cnow; struct async_icount cprev; @@ -875,11 +871,10 @@ static int ti_ioctl(struct usb_serial_port *port, struct file *file, } -static void ti_set_termios(struct usb_serial_port *port, - struct ktermios *old_termios) +static void ti_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios) { struct ti_port *tport = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; struct ti_uart_config *config; tcflag_t cflag,iflag; int baud; @@ -1008,8 +1003,9 @@ static void ti_set_termios(struct usb_serial_port *port, } -static int ti_tiocmget(struct usb_serial_port *port, struct file *file) +static int ti_tiocmget(struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); unsigned int result; unsigned int msr; @@ -1040,9 +1036,10 @@ static int ti_tiocmget(struct usb_serial_port *port, struct file *file) } -static int ti_tiocmset(struct usb_serial_port *port, struct file *file, +static int ti_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); unsigned int mcr; unsigned long flags; @@ -1074,8 +1071,9 @@ static int ti_tiocmset(struct usb_serial_port *port, struct file *file, } -static void ti_break(struct usb_serial_port *port, int break_state) +static void ti_break(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); int status; @@ -1213,14 +1211,14 @@ static void ti_bulk_in_callback(struct urb *urb) return; } - if (port->tty && urb->actual_length) { + if (port->port.tty && urb->actual_length) { usb_serial_debug_data(debug, dev, __func__, urb->actual_length, urb->transfer_buffer); if (!tport->tp_is_open) dbg("%s - port closed, dropping data", __func__); else - ti_recv(&urb->dev->dev, port->tty, urb->transfer_buffer, + ti_recv(&urb->dev->dev, port->port.tty, urb->transfer_buffer, urb->actual_length); spin_lock(&tport->tp_lock); @@ -1302,7 +1300,7 @@ static void ti_send(struct ti_port *tport) { int count, result; struct usb_serial_port *port = tport->tp_port; - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; /* FIXME */ unsigned long flags; @@ -1442,8 +1440,9 @@ static int ti_set_serial_info(struct ti_port *tport, return -EFAULT; tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; - if (port->tty) - port->tty->low_latency = + /* FIXME */ + if (port->port.tty) + port->port.tty->low_latency = (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0; tport->tp_closing_wait = new_serial.closing_wait; @@ -1477,7 +1476,7 @@ static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) tport->tp_msr = msr & TI_MSR_MASK; /* handle CTS flow control */ - tty = tport->tp_port->tty; + tty = tport->tp_port->port.tty; if (tty && C_CRTSCTS(tty)) { if (msr & TI_MSR_CTS) { tty->hw_stopped = 0; @@ -1655,65 +1654,65 @@ static int ti_write_byte(struct ti_device *tdev, unsigned long addr, return status; } - -static int ti_download_firmware(struct ti_device *tdev, - char *fw_name) +static int ti_do_download(struct usb_device *dev, int pipe, + u8 *buffer, int size) { - const struct firmware *fw; - int status = 0; - int buffer_size; int pos; - int len; + u8 cs = 0; int done; - __u8 cs = 0; - __u8 *buffer; - struct usb_device *dev = tdev->td_serial->dev; struct ti_firmware_header *header; - unsigned int pipe = usb_sndbulkpipe(dev, - tdev->td_serial->port[0]->bulk_out_endpointAddress); - - buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); - - if (request_firmware(&fw, fw_name, &dev->dev)) { - dev_err(&dev->dev, "%s - failed to load firmware \"%s\"\n", - __func__, fw_name); - return -ENOENT; - } - if (fw->size > buffer_size) { - dev_err(&dev->dev, "%s - firmware \"%s\" is too large\n", - __func__, fw_name); - release_firmware(fw); - return -EINVAL; - } - - buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!buffer) { - dev_err(&dev->dev, "%s - out of memory\n", __func__); - release_firmware(fw); - return -ENOMEM; - } - - memcpy(buffer, fw->data, fw->size); - memset(buffer+fw->size, 0xff, buffer_size-fw->size); - - for(pos = sizeof(struct ti_firmware_header); pos < buffer_size; pos++) + int status; + int len; + + for(pos = sizeof(struct ti_firmware_header); pos < size; pos++) cs = (__u8)(cs + buffer[pos]); header = (struct ti_firmware_header *)buffer; - header->wLength = cpu_to_le16((__u16)(buffer_size - sizeof(struct ti_firmware_header))); + header->wLength = cpu_to_le16((__u16)(size + - sizeof(struct ti_firmware_header))); header->bCheckSum = cs; dbg("%s - downloading firmware", __func__); - for (pos = 0; pos < buffer_size; pos += done) { - len = min(buffer_size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); - status = usb_bulk_msg(dev, pipe, buffer+pos, len, &done, 1000); + for (pos = 0; pos < size; pos += done) { + len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); + status = usb_bulk_msg(dev, pipe, buffer + pos, len, + &done, 1000); if (status) break; } + return status; +} - kfree(buffer); - release_firmware(fw); +static int ti_download_firmware(struct ti_device *tdev, int type) +{ + int status = -ENOMEM; + int buffer_size; + __u8 *buffer; + struct usb_device *dev = tdev->td_serial->dev; + unsigned int pipe = usb_sndbulkpipe(dev, + tdev->td_serial->port[0]->bulk_out_endpointAddress); + const struct firmware *fw_p; + char buf[32]; + sprintf(buf, "ti_usb-%d.bin", type); + if (request_firmware(&fw_p, buf, &dev->dev)) { + dev_err(&dev->dev, "%s - firmware not found\n", __func__); + return -ENOENT; + } + if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { + dev_err(&dev->dev, "%s - firmware too large\n", __func__); + return -ENOENT; + } + + buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (buffer) { + memcpy(buffer, fw_p->data, fw_p->size); + memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); + ti_do_download(dev, pipe, buffer, fw_p->size); + kfree(buffer); + } + release_firmware(fw_p); if (status) { dev_err(&dev->dev, "%s - error downloading firmware, %d\n", __func__, status); return status; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 353798631903..ffaed8ace066 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -143,7 +143,7 @@ static void destroy_serial(struct kref *kref) return_serial(serial); for (i = 0; i < serial->num_ports; ++i) - serial->port[i]->open_count = 0; + serial->port[i]->port.count = 0; /* the ports are cleaned up and released in port_release() */ for (i = 0; i < serial->num_ports; ++i) @@ -208,14 +208,14 @@ static int serial_open (struct tty_struct *tty, struct file * filp) goto bailout_kref_put; } - ++port->open_count; + ++port->port.count; /* set up our port structure making the tty driver * remember our port object, and us it */ tty->driver_data = port; - port->tty = tty; + port->port.tty = tty; - if (port->open_count == 1) { + if (port->port.count == 1) { /* lock this module before we call it * this may fail, which means we must bail out, @@ -230,7 +230,7 @@ static int serial_open (struct tty_struct *tty, struct file * filp) goto bailout_module_put; /* only call the device specific open if this * is the first time the port is opened */ - retval = serial->type->open(port, filp); + retval = serial->type->open(tty, port, filp); if (retval) goto bailout_interface_put; } @@ -243,9 +243,9 @@ bailout_interface_put: bailout_module_put: module_put(serial->type->driver.owner); bailout_mutex_unlock: - port->open_count = 0; + port->port.count = 0; tty->driver_data = NULL; - port->tty = NULL; + port->port.tty = NULL; mutex_unlock(&port->mutex); bailout_kref_put: usb_serial_put(serial); @@ -263,26 +263,26 @@ static void serial_close(struct tty_struct *tty, struct file * filp) mutex_lock(&port->mutex); - if (port->open_count == 0) { + if (port->port.count == 0) { mutex_unlock(&port->mutex); return; } - --port->open_count; - if (port->open_count == 0) + --port->port.count; + if (port->port.count == 0) /* only call the device specific close if this * port is being closed by the last owner */ - port->serial->type->close(port, filp); + port->serial->type->close(tty, port, filp); - if (port->open_count == (port->console? 1 : 0)) { - if (port->tty) { - if (port->tty->driver_data) - port->tty->driver_data = NULL; - port->tty = NULL; + if (port->port.count == (port->console? 1 : 0)) { + if (port->port.tty) { + if (port->port.tty->driver_data) + port->port.tty->driver_data = NULL; + port->port.tty = NULL; } } - if (port->open_count == 0) { + if (port->port.count == 0) { mutex_lock(&port->serial->disc_mutex); if (!port->serial->disconnected) usb_autopm_put_interface(port->serial->interface); @@ -304,12 +304,12 @@ static int serial_write (struct tty_struct * tty, const unsigned char *buf, int dbg("%s - port %d, %d byte(s)", __func__, port->number, count); - /* open_count is managed under the mutex lock for the tty so cannot + /* count is managed under the mutex lock for the tty so cannot drop to zero until after the last close completes */ - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ - retval = port->serial->type->write(port, buf, count); + retval = port->serial->type->write(tty, port, buf, count); exit: return retval; @@ -319,9 +319,9 @@ static int serial_write_room (struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ - return port->serial->type->write_room(port); + return port->serial->type->write_room(tty); } static int serial_chars_in_buffer (struct tty_struct *tty) @@ -329,9 +329,9 @@ static int serial_chars_in_buffer (struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; dbg("%s = port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ - return port->serial->type->chars_in_buffer(port); + return port->serial->type->chars_in_buffer(tty); } static void serial_throttle (struct tty_struct * tty) @@ -339,10 +339,10 @@ static void serial_throttle (struct tty_struct * tty) struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ if (port->serial->type->throttle) - port->serial->type->throttle(port); + port->serial->type->throttle(tty); } static void serial_unthrottle (struct tty_struct * tty) @@ -350,10 +350,10 @@ static void serial_unthrottle (struct tty_struct * tty) struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function */ if (port->serial->type->unthrottle) - port->serial->type->unthrottle(port); + port->serial->type->unthrottle(tty); } static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) @@ -363,12 +363,12 @@ static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned in dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function if it is available */ if (port->serial->type->ioctl) { lock_kernel(); - retval = port->serial->type->ioctl(port, file, cmd, arg); + retval = port->serial->type->ioctl(tty, file, cmd, arg); unlock_kernel(); } else @@ -381,10 +381,10 @@ static void serial_set_termios (struct tty_struct *tty, struct ktermios * old) struct usb_serial_port *port = tty->driver_data; dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function if it is available */ if (port->serial->type->set_termios) - port->serial->type->set_termios(port, old); + port->serial->type->set_termios(tty, port, old); else tty_termios_copy_hw(tty->termios, old); } @@ -395,11 +395,11 @@ static void serial_break (struct tty_struct *tty, int break_state) dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); /* pass on to the driver specific version of this function if it is available */ if (port->serial->type->break_ctl) { lock_kernel(); - port->serial->type->break_ctl(port, break_state); + port->serial->type->break_ctl(tty, break_state); unlock_kernel(); } } @@ -457,9 +457,9 @@ static int serial_tiocmget (struct tty_struct *tty, struct file *file) dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); if (port->serial->type->tiocmget) - return port->serial->type->tiocmget(port, file); + return port->serial->type->tiocmget(tty, file); return -EINVAL; } @@ -470,9 +470,9 @@ static int serial_tiocmset (struct tty_struct *tty, struct file *file, dbg("%s - port %d", __func__, port->number); - WARN_ON(!port->open_count); + WARN_ON(!port->port.count); if (port->serial->type->tiocmset) - return port->serial->type->tiocmset(port, file, set, clear); + return port->serial->type->tiocmset(tty, file, set, clear); return -EINVAL; } @@ -497,7 +497,7 @@ static void usb_serial_port_work(struct work_struct *work) if (!port) return; - tty = port->tty; + tty = port->port.tty; if (!tty) return; @@ -1010,8 +1010,8 @@ void usb_serial_disconnect(struct usb_interface *interface) for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; if (port) { - if (port->tty) - tty_hangup(port->tty); + if (port->port.tty) + tty_hangup(port->port.tty); kill_traffic(port); } } diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c index 9ca4d4db1ddd..fc5d9952b03b 100644 --- a/drivers/usb/serial/usb_debug.c +++ b/drivers/usb/serial/usb_debug.c @@ -31,10 +31,11 @@ static struct usb_driver debug_driver = { .no_dynamic_id = 1, }; -int usb_debug_open(struct usb_serial_port *port, struct file *filp) +int usb_debug_open(struct tty_struct *tty, struct usb_serial_port *port, + struct file *filp) { port->bulk_out_size = USB_DEBUG_MAX_PACKET_SIZE; - return usb_serial_generic_open(port, filp); + return usb_serial_generic_open(tty, port, filp); } static struct usb_serial_driver debug_device = { diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 5fc20122145f..373a3c7ea77b 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -35,17 +35,15 @@ #define DRIVER_DESC "USB HandSpring Visor / Palm OS driver" /* function prototypes for a handspring visor */ -static int visor_open (struct usb_serial_port *port, struct file *filp); -static void visor_close (struct usb_serial_port *port, struct file *filp); -static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static int visor_write_room (struct usb_serial_port *port); -static int visor_chars_in_buffer (struct usb_serial_port *port); -static void visor_throttle (struct usb_serial_port *port); -static void visor_unthrottle (struct usb_serial_port *port); +static int visor_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void visor_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static int visor_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); +static int visor_write_room (struct tty_struct *tty); +static void visor_throttle (struct tty_struct *tty); +static void visor_unthrottle (struct tty_struct *tty); static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id); static int visor_calc_num_ports(struct usb_serial *serial); static void visor_shutdown (struct usb_serial *serial); -static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg); static void visor_write_bulk_callback (struct urb *urb); static void visor_read_bulk_callback (struct urb *urb); static void visor_read_int_callback (struct urb *urb); @@ -198,10 +196,8 @@ static struct usb_serial_driver handspring_device = { .probe = visor_probe, .calc_num_ports = visor_calc_num_ports, .shutdown = visor_shutdown, - .ioctl = visor_ioctl, .write = visor_write, .write_room = visor_write_room, - .chars_in_buffer = visor_chars_in_buffer, .write_bulk_callback = visor_write_bulk_callback, .read_bulk_callback = visor_read_bulk_callback, .read_int_callback = visor_read_int_callback, @@ -225,10 +221,8 @@ static struct usb_serial_driver clie_5_device = { .probe = visor_probe, .calc_num_ports = visor_calc_num_ports, .shutdown = visor_shutdown, - .ioctl = visor_ioctl, .write = visor_write, .write_room = visor_write_room, - .chars_in_buffer = visor_chars_in_buffer, .write_bulk_callback = visor_write_bulk_callback, .read_bulk_callback = visor_read_bulk_callback, .read_int_callback = visor_read_int_callback, @@ -249,10 +243,8 @@ static struct usb_serial_driver clie_3_5_device = { .throttle = visor_throttle, .unthrottle = visor_unthrottle, .attach = clie_3_5_startup, - .ioctl = visor_ioctl, .write = visor_write, .write_room = visor_write_room, - .chars_in_buffer = visor_chars_in_buffer, .write_bulk_callback = visor_write_bulk_callback, .read_bulk_callback = visor_read_bulk_callback, }; @@ -274,7 +266,7 @@ static int stats; /****************************************************************************** * Handspring Visor specific driver functions ******************************************************************************/ -static int visor_open (struct usb_serial_port *port, struct file *filp) +static int visor_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; struct visor_private *priv = usb_get_serial_port_data(port); @@ -300,8 +292,8 @@ static int visor_open (struct usb_serial_port *port, struct file *filp) * through, otherwise it is scheduled, and with high data rates (like * with OHCI) data can get lost. */ - if (port->tty) - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; /* Start reading from the device */ usb_fill_bulk_urb (port->read_urb, serial->dev, @@ -329,7 +321,8 @@ exit: } -static void visor_close (struct usb_serial_port *port, struct file * filp) +static void visor_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct visor_private *priv = usb_get_serial_port_data(port); unsigned char *transfer_buffer; @@ -361,7 +354,8 @@ static void visor_close (struct usb_serial_port *port, struct file * filp) } -static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count) +static int visor_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) { struct visor_private *priv = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; @@ -435,8 +429,9 @@ error_no_buffer: } -static int visor_write_room (struct usb_serial_port *port) +static int visor_write_room (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct visor_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -460,22 +455,6 @@ static int visor_write_room (struct usb_serial_port *port) } -static int visor_chars_in_buffer (struct usb_serial_port *port) -{ - dbg("%s - port %d", __func__, port->number); - - /* - * We can't really account for how much data we - * have sent out, but hasn't made it through to the - * device, so just tell the tty layer that everything - * is flushed. - * - * FIXME: Should walk outstanding_urbs - */ - return 0; -} - - static void visor_write_bulk_callback (struct urb *urb) { struct usb_serial_port *port = urb->context; @@ -520,7 +499,7 @@ static void visor_read_bulk_callback (struct urb *urb) usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); - tty = port->tty; + tty = port->port.tty; if (tty && urb->actual_length) { available_room = tty_buffer_request_room(tty, urb->actual_length); if (available_room) { @@ -591,8 +570,9 @@ exit: __func__, result); } -static void visor_throttle (struct usb_serial_port *port) +static void visor_throttle (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct visor_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -603,8 +583,9 @@ static void visor_throttle (struct usb_serial_port *port) } -static void visor_unthrottle (struct usb_serial_port *port) +static void visor_unthrottle (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct visor_private *priv = usb_get_serial_port_data(port); unsigned long flags; int result; @@ -922,13 +903,6 @@ static void visor_shutdown (struct usb_serial *serial) } } -static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) -{ - dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd); - - return -ENOIOCTLCMD; -} - static int __init visor_init (void) { int i, retval; diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 665aa77a917b..b07d6a5cac31 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -142,18 +142,18 @@ static int whiteheat_firmware_attach (struct usb_serial *serial); /* function prototypes for the Connect Tech WhiteHEAT serial converter */ static int whiteheat_attach (struct usb_serial *serial); static void whiteheat_shutdown (struct usb_serial *serial); -static int whiteheat_open (struct usb_serial_port *port, struct file *filp); -static void whiteheat_close (struct usb_serial_port *port, struct file *filp); -static int whiteheat_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static int whiteheat_write_room (struct usb_serial_port *port); -static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg); -static void whiteheat_set_termios (struct usb_serial_port *port, struct ktermios * old); -static int whiteheat_tiocmget (struct usb_serial_port *port, struct file *file); -static int whiteheat_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear); -static void whiteheat_break_ctl (struct usb_serial_port *port, int break_state); -static int whiteheat_chars_in_buffer (struct usb_serial_port *port); -static void whiteheat_throttle (struct usb_serial_port *port); -static void whiteheat_unthrottle (struct usb_serial_port *port); +static int whiteheat_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static void whiteheat_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp); +static int whiteheat_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); +static int whiteheat_write_room (struct tty_struct *tty); +static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg); +static void whiteheat_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old); +static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file); +static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); +static void whiteheat_break_ctl (struct tty_struct *tty, int break_state); +static int whiteheat_chars_in_buffer (struct tty_struct *tty); +static void whiteheat_throttle (struct tty_struct *tty); +static void whiteheat_unthrottle (struct tty_struct *tty); static void whiteheat_read_callback (struct urb *urb); static void whiteheat_write_callback (struct urb *urb); @@ -246,7 +246,7 @@ static void rx_data_softint(struct work_struct *work); static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize); static int firm_open(struct usb_serial_port *port); static int firm_close(struct usb_serial_port *port); -static int firm_setup_port(struct usb_serial_port *port); +static int firm_setup_port(struct tty_struct *tty); static int firm_set_rts(struct usb_serial_port *port, __u8 onoff); static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff); static int firm_set_break(struct usb_serial_port *port, __u8 onoff); @@ -613,7 +613,8 @@ static void whiteheat_shutdown (struct usb_serial *serial) } -static int whiteheat_open (struct usb_serial_port *port, struct file *filp) +static int whiteheat_open (struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp) { int retval = 0; struct ktermios old_term; @@ -624,7 +625,8 @@ static int whiteheat_open (struct usb_serial_port *port, struct file *filp) if (retval) goto exit; - port->tty->low_latency = 1; + if (tty) + tty->low_latency = 1; /* send an open port command */ retval = firm_open(port); @@ -640,9 +642,11 @@ static int whiteheat_open (struct usb_serial_port *port, struct file *filp) goto exit; } - old_term.c_cflag = ~port->tty->termios->c_cflag; - old_term.c_iflag = ~port->tty->termios->c_iflag; - whiteheat_set_termios(port, &old_term); + if (tty) { + old_term.c_cflag = ~tty->termios->c_cflag; + old_term.c_iflag = ~tty->termios->c_iflag; + whiteheat_set_termios(tty, port, &old_term); + } /* Work around HCD bugs */ usb_clear_halt(port->serial->dev, port->read_urb->pipe); @@ -663,7 +667,8 @@ exit: } -static void whiteheat_close(struct usb_serial_port *port, struct file * filp) +static void whiteheat_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file * filp) { struct whiteheat_private *info = usb_get_serial_port_data(port); struct whiteheat_urb_wrap *wrap; @@ -681,7 +686,7 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp) } mutex_unlock(&port->serial->disc_mutex); - port->tty->closing = 1; + tty->closing = 1; /* * Not currently in use; tty_wait_until_sent() calls @@ -689,12 +694,12 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp) * acquisition. This should be fixed at some point. Greg's been * notified. if ((filp->f_flags & (O_NDELAY | O_NONBLOCK)) == 0) { - tty_wait_until_sent(port->tty, CLOSING_DELAY); + tty_wait_until_sent(tty, CLOSING_DELAY); } */ - tty_driver_flush_buffer(port->tty); - tty_ldisc_flush(port->tty); + tty_driver_flush_buffer(tty); + tty_ldisc_flush(tty); firm_report_tx_done(port); @@ -728,11 +733,12 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp) stop_command_port(port->serial); - port->tty->closing = 0; + tty->closing = 0; } -static int whiteheat_write(struct usb_serial_port *port, const unsigned char *buf, int count) +static int whiteheat_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count) { struct usb_serial *serial = port->serial; struct whiteheat_private *info = usb_get_serial_port_data(port); @@ -791,8 +797,9 @@ static int whiteheat_write(struct usb_serial_port *port, const unsigned char *bu } -static int whiteheat_write_room(struct usb_serial_port *port) +static int whiteheat_write_room(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); struct list_head *tmp; int room = 0; @@ -811,8 +818,9 @@ static int whiteheat_write_room(struct usb_serial_port *port) } -static int whiteheat_tiocmget (struct usb_serial_port *port, struct file *file) +static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file) { + struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); unsigned int modem_signals = 0; @@ -828,9 +836,10 @@ static int whiteheat_tiocmget (struct usb_serial_port *port, struct file *file) } -static int whiteheat_tiocmset (struct usb_serial_port *port, struct file *file, +static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); dbg("%s - port %d", __func__, port->number); @@ -851,8 +860,9 @@ static int whiteheat_tiocmset (struct usb_serial_port *port, struct file *file, } -static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) +static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct serial_struct serstruct; void __user *user_arg = (void __user *)arg; @@ -896,20 +906,21 @@ static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, un } -static void whiteheat_set_termios(struct usb_serial_port *port, struct ktermios *old_termios) +static void whiteheat_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { - dbg("%s -port %d", __func__, port->number); - firm_setup_port(port); + firm_setup_port(tty); } -static void whiteheat_break_ctl(struct usb_serial_port *port, int break_state) { +static void whiteheat_break_ctl(struct tty_struct *tty, int break_state) { + struct usb_serial_port *port = tty->driver_data; firm_set_break(port, break_state); } -static int whiteheat_chars_in_buffer(struct usb_serial_port *port) +static int whiteheat_chars_in_buffer(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); struct list_head *tmp; struct whiteheat_urb_wrap *wrap; @@ -930,8 +941,9 @@ static int whiteheat_chars_in_buffer(struct usb_serial_port *port) } -static void whiteheat_throttle (struct usb_serial_port *port) +static void whiteheat_throttle (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); unsigned long flags; @@ -945,8 +957,9 @@ static void whiteheat_throttle (struct usb_serial_port *port) } -static void whiteheat_unthrottle (struct usb_serial_port *port) +static void whiteheat_unthrottle (struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); int actually_throttled; unsigned long flags; @@ -1184,9 +1197,10 @@ static int firm_close(struct usb_serial_port *port) { } -static int firm_setup_port(struct usb_serial_port *port) { +static int firm_setup_port(struct tty_struct *tty) { + struct usb_serial_port *port = tty->driver_data; struct whiteheat_port_settings port_settings; - unsigned int cflag = port->tty->termios->c_cflag; + unsigned int cflag = tty->termios->c_cflag; port_settings.port = port->number + 1; @@ -1235,22 +1249,22 @@ static int firm_setup_port(struct usb_serial_port *port) { (port_settings.hflow & WHITEHEAT_HFLOW_DTR) ? "DTR" : ""); /* determine software flow control */ - if (I_IXOFF(port->tty)) + if (I_IXOFF(tty)) port_settings.sflow = WHITEHEAT_SFLOW_RXTX; else port_settings.sflow = WHITEHEAT_SFLOW_NONE; dbg("%s - software flow control = %c", __func__, port_settings.sflow); - port_settings.xon = START_CHAR(port->tty); - port_settings.xoff = STOP_CHAR(port->tty); + port_settings.xon = START_CHAR(tty); + port_settings.xoff = STOP_CHAR(tty); dbg("%s - XON = %2x, XOFF = %2x", __func__, port_settings.xon, port_settings.xoff); /* get the baud rate wanted */ - port_settings.baud = tty_get_baud_rate(port->tty); + port_settings.baud = tty_get_baud_rate(tty); dbg("%s - baud rate = %d", __func__, port_settings.baud); /* fixme: should set validated settings */ - tty_encode_baud_rate(port->tty, port_settings.baud, port_settings.baud); + tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud); /* handle any settings that aren't specified in the tty structure */ port_settings.lloop = 0; @@ -1426,7 +1440,7 @@ static void rx_data_softint(struct work_struct *work) struct whiteheat_private *info = container_of(work, struct whiteheat_private, rx_work); struct usb_serial_port *port = info->port; - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; struct whiteheat_urb_wrap *wrap; struct urb *urb; unsigned long flags; diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 8f891cbaf9ab..09a3e6a7518f 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -62,7 +62,7 @@ */ struct usb_serial_port { struct usb_serial *serial; - struct tty_struct *tty; + struct tty_port port; spinlock_t lock; struct mutex mutex; unsigned char number; @@ -89,7 +89,6 @@ struct usb_serial_port { wait_queue_head_t write_wait; struct work_struct work; - int open_count; char throttled; char throttle_req; char console; @@ -217,22 +216,27 @@ struct usb_serial_driver { int (*resume)(struct usb_serial *serial); /* serial function calls */ - int (*open)(struct usb_serial_port *port, struct file *filp); - void (*close)(struct usb_serial_port *port, struct file *filp); - int (*write)(struct usb_serial_port *port, const unsigned char *buf, - int count); - int (*write_room)(struct usb_serial_port *port); - int (*ioctl)(struct usb_serial_port *port, struct file *file, + /* Called by console with tty = NULL and by tty */ + int (*open)(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); + void (*close)(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); + int (*write)(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count); + /* Called only by the tty layer */ + int (*write_room)(struct tty_struct *tty); + int (*ioctl)(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); - void (*set_termios)(struct usb_serial_port *port, struct ktermios *old); - void (*break_ctl)(struct usb_serial_port *port, int break_state); - int (*chars_in_buffer)(struct usb_serial_port *port); - void (*throttle)(struct usb_serial_port *port); - void (*unthrottle)(struct usb_serial_port *port); - int (*tiocmget)(struct usb_serial_port *port, struct file *file); - int (*tiocmset)(struct usb_serial_port *port, struct file *file, + void (*set_termios)(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old); + void (*break_ctl)(struct tty_struct *tty, int break_state); + int (*chars_in_buffer)(struct tty_struct *tty); + void (*throttle)(struct tty_struct *tty); + void (*unthrottle)(struct tty_struct *tty); + int (*tiocmget)(struct tty_struct *tty, struct file *file); + int (*tiocmset)(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); - + /* USB events */ void (*read_int_callback)(struct urb *urb); void (*write_int_callback)(struct urb *urb); void (*read_bulk_callback)(struct urb *urb); @@ -270,19 +274,19 @@ static inline void usb_serial_console_disconnect(struct usb_serial *serial) {} /* Functions needed by other parts of the usbserial core */ extern struct usb_serial *usb_serial_get_by_index(unsigned int minor); extern void usb_serial_put(struct usb_serial *serial); -extern int usb_serial_generic_open(struct usb_serial_port *port, - struct file *filp); -extern int usb_serial_generic_write(struct usb_serial_port *port, - const unsigned char *buf, int count); -extern void usb_serial_generic_close(struct usb_serial_port *port, - struct file *filp); +extern int usb_serial_generic_open(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); +extern int usb_serial_generic_write(struct tty_struct *tty, + struct usb_serial_port *port, const unsigned char *buf, int count); +extern void usb_serial_generic_close(struct tty_struct *tty, + struct usb_serial_port *port, struct file *filp); extern int usb_serial_generic_resume(struct usb_serial *serial); -extern int usb_serial_generic_write_room(struct usb_serial_port *port); -extern int usb_serial_generic_chars_in_buffer(struct usb_serial_port *port); +extern int usb_serial_generic_write_room(struct tty_struct *tty); +extern int usb_serial_generic_chars_in_buffer(struct tty_struct *tty); extern void usb_serial_generic_read_bulk_callback(struct urb *urb); extern void usb_serial_generic_write_bulk_callback(struct urb *urb); -extern void usb_serial_generic_throttle(struct usb_serial_port *port); -extern void usb_serial_generic_unthrottle(struct usb_serial_port *port); +extern void usb_serial_generic_throttle(struct tty_struct *tty); +extern void usb_serial_generic_unthrottle(struct tty_struct *tty); extern void usb_serial_generic_shutdown(struct usb_serial *serial); extern int usb_serial_generic_register(int debug); extern void usb_serial_generic_deregister(void); -- cgit v1.2.3 From 01e1abb2c27e43339b8829a2e3b1c6f53806b77a Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 22 Jul 2008 11:16:55 +0100 Subject: tty: Split ldisc code into its own file Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- drivers/char/Makefile | 2 +- drivers/char/tty_io.c | 636 +---------------------------------------- drivers/char/tty_ldisc.c | 714 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/tty.h | 11 +- 4 files changed, 733 insertions(+), 630 deletions(-) create mode 100644 drivers/char/tty_ldisc.c (limited to 'include') diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 0e0d12a06462..dc5a327d72d5 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -7,7 +7,7 @@ # FONTMAPFILE = cp437.uni -obj-y += mem.o random.o tty_io.o n_tty.o tty_ioctl.o +obj-y += mem.o random.o tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o obj-$(CONFIG_LEGACY_PTYS) += pty.o obj-$(CONFIG_UNIX98_PTYS) += pty.o diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index 82f6a8c86332..d27a08b374d0 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -655,558 +655,6 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string_flags); -/** - * tty_set_termios_ldisc - set ldisc field - * @tty: tty structure - * @num: line discipline number - * - * This is probably overkill for real world processors but - * they are not on hot paths so a little discipline won't do - * any harm. - * - * Locking: takes termios_mutex - */ - -static void tty_set_termios_ldisc(struct tty_struct *tty, int num) -{ - mutex_lock(&tty->termios_mutex); - tty->termios->c_line = num; - mutex_unlock(&tty->termios_mutex); -} - -/* - * This guards the refcounted line discipline lists. The lock - * must be taken with irqs off because there are hangup path - * callers who will do ldisc lookups and cannot sleep. - */ - -static DEFINE_SPINLOCK(tty_ldisc_lock); -static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait); -/* Line disc dispatch table */ -static struct tty_ldisc_ops *tty_ldiscs[NR_LDISCS]; - -/** - * tty_register_ldisc - install a line discipline - * @disc: ldisc number - * @new_ldisc: pointer to the ldisc object - * - * Installs a new line discipline into the kernel. The discipline - * is set up as unreferenced and then made available to the kernel - * from this point onwards. - * - * Locking: - * takes tty_ldisc_lock to guard against ldisc races - */ - -int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc) -{ - unsigned long flags; - int ret = 0; - - if (disc < N_TTY || disc >= NR_LDISCS) - return -EINVAL; - - spin_lock_irqsave(&tty_ldisc_lock, flags); - tty_ldiscs[disc] = new_ldisc; - new_ldisc->num = disc; - new_ldisc->refcount = 0; - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - - return ret; -} -EXPORT_SYMBOL(tty_register_ldisc); - -/** - * tty_unregister_ldisc - unload a line discipline - * @disc: ldisc number - * @new_ldisc: pointer to the ldisc object - * - * Remove a line discipline from the kernel providing it is not - * currently in use. - * - * Locking: - * takes tty_ldisc_lock to guard against ldisc races - */ - -int tty_unregister_ldisc(int disc) -{ - unsigned long flags; - int ret = 0; - - if (disc < N_TTY || disc >= NR_LDISCS) - return -EINVAL; - - spin_lock_irqsave(&tty_ldisc_lock, flags); - if (tty_ldiscs[disc]->refcount) - ret = -EBUSY; - else - tty_ldiscs[disc] = NULL; - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - - return ret; -} -EXPORT_SYMBOL(tty_unregister_ldisc); - - -/** - * tty_ldisc_try_get - try and reference an ldisc - * @disc: ldisc number - * @ld: tty ldisc structure to complete - * - * Attempt to open and lock a line discipline into place. Return - * the line discipline refcounted and assigned in ld. On an error - * report the error code back - */ - -static int tty_ldisc_try_get(int disc, struct tty_ldisc *ld) -{ - unsigned long flags; - struct tty_ldisc_ops *ldops; - int err = -EINVAL; - - spin_lock_irqsave(&tty_ldisc_lock, flags); - ld->ops = NULL; - ldops = tty_ldiscs[disc]; - /* Check the entry is defined */ - if (ldops) { - /* If the module is being unloaded we can't use it */ - if (!try_module_get(ldops->owner)) - err = -EAGAIN; - else { - /* lock it */ - ldops->refcount++; - ld->ops = ldops; - err = 0; - } - } - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - return err; -} - -/** - * tty_ldisc_get - take a reference to an ldisc - * @disc: ldisc number - * @ld: tty line discipline structure to use - * - * Takes a reference to a line discipline. Deals with refcounts and - * module locking counts. Returns NULL if the discipline is not available. - * Returns a pointer to the discipline and bumps the ref count if it is - * available - * - * Locking: - * takes tty_ldisc_lock to guard against ldisc races - */ - -static int tty_ldisc_get(int disc, struct tty_ldisc *ld) -{ - int err; - - if (disc < N_TTY || disc >= NR_LDISCS) - return -EINVAL; - err = tty_ldisc_try_get(disc, ld); - if (err == -EAGAIN) { - request_module("tty-ldisc-%d", disc); - err = tty_ldisc_try_get(disc, ld); - } - return err; -} - -/** - * tty_ldisc_put - drop ldisc reference - * @disc: ldisc number - * - * Drop a reference to a line discipline. Manage refcounts and - * module usage counts - * - * Locking: - * takes tty_ldisc_lock to guard against ldisc races - */ - -static void tty_ldisc_put(struct tty_ldisc_ops *ld) -{ - unsigned long flags; - int disc = ld->num; - - BUG_ON(disc < N_TTY || disc >= NR_LDISCS); - - spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = tty_ldiscs[disc]; - BUG_ON(ld->refcount == 0); - ld->refcount--; - module_put(ld->owner); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); -} - -static void * tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos) -{ - return (*pos < NR_LDISCS) ? pos : NULL; -} - -static void * tty_ldiscs_seq_next(struct seq_file *m, void *v, loff_t *pos) -{ - (*pos)++; - return (*pos < NR_LDISCS) ? pos : NULL; -} - -static void tty_ldiscs_seq_stop(struct seq_file *m, void *v) -{ -} - -static int tty_ldiscs_seq_show(struct seq_file *m, void *v) -{ - int i = *(loff_t *)v; - struct tty_ldisc ld; - - if (tty_ldisc_get(i, &ld) < 0) - return 0; - seq_printf(m, "%-10s %2d\n", ld.ops->name ? ld.ops->name : "???", i); - tty_ldisc_put(ld.ops); - return 0; -} - -static const struct seq_operations tty_ldiscs_seq_ops = { - .start = tty_ldiscs_seq_start, - .next = tty_ldiscs_seq_next, - .stop = tty_ldiscs_seq_stop, - .show = tty_ldiscs_seq_show, -}; - -static int proc_tty_ldiscs_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &tty_ldiscs_seq_ops); -} - -const struct file_operations tty_ldiscs_proc_fops = { - .owner = THIS_MODULE, - .open = proc_tty_ldiscs_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -/** - * tty_ldisc_assign - set ldisc on a tty - * @tty: tty to assign - * @ld: line discipline - * - * Install an instance of a line discipline into a tty structure. The - * ldisc must have a reference count above zero to ensure it remains/ - * The tty instance refcount starts at zero. - * - * Locking: - * Caller must hold references - */ - -static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) -{ - ld->refcount = 0; - tty->ldisc = *ld; -} - -/** - * tty_ldisc_try - internal helper - * @tty: the tty - * - * Make a single attempt to grab and bump the refcount on - * the tty ldisc. Return 0 on failure or 1 on success. This is - * used to implement both the waiting and non waiting versions - * of tty_ldisc_ref - * - * Locking: takes tty_ldisc_lock - */ - -static int tty_ldisc_try(struct tty_struct *tty) -{ - unsigned long flags; - struct tty_ldisc *ld; - int ret = 0; - - spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = &tty->ldisc; - if (test_bit(TTY_LDISC, &tty->flags)) { - ld->refcount++; - ret = 1; - } - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - return ret; -} - -/** - * tty_ldisc_ref_wait - wait for the tty ldisc - * @tty: tty device - * - * Dereference the line discipline for the terminal and take a - * reference to it. If the line discipline is in flux then - * wait patiently until it changes. - * - * Note: Must not be called from an IRQ/timer context. The caller - * must also be careful not to hold other locks that will deadlock - * against a discipline change, such as an existing ldisc reference - * (which we check for) - * - * Locking: call functions take tty_ldisc_lock - */ - -struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty) -{ - /* wait_event is a macro */ - wait_event(tty_ldisc_wait, tty_ldisc_try(tty)); - if (tty->ldisc.refcount == 0) - printk(KERN_ERR "tty_ldisc_ref_wait\n"); - return &tty->ldisc; -} - -EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); - -/** - * tty_ldisc_ref - get the tty ldisc - * @tty: tty device - * - * Dereference the line discipline for the terminal and take a - * reference to it. If the line discipline is in flux then - * return NULL. Can be called from IRQ and timer functions. - * - * Locking: called functions take tty_ldisc_lock - */ - -struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty) -{ - if (tty_ldisc_try(tty)) - return &tty->ldisc; - return NULL; -} - -EXPORT_SYMBOL_GPL(tty_ldisc_ref); - -/** - * tty_ldisc_deref - free a tty ldisc reference - * @ld: reference to free up - * - * Undoes the effect of tty_ldisc_ref or tty_ldisc_ref_wait. May - * be called in IRQ context. - * - * Locking: takes tty_ldisc_lock - */ - -void tty_ldisc_deref(struct tty_ldisc *ld) -{ - unsigned long flags; - - BUG_ON(ld == NULL); - - spin_lock_irqsave(&tty_ldisc_lock, flags); - if (ld->refcount == 0) - printk(KERN_ERR "tty_ldisc_deref: no references.\n"); - else - ld->refcount--; - if (ld->refcount == 0) - wake_up(&tty_ldisc_wait); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); -} - -EXPORT_SYMBOL_GPL(tty_ldisc_deref); - -/** - * tty_ldisc_enable - allow ldisc use - * @tty: terminal to activate ldisc on - * - * Set the TTY_LDISC flag when the line discipline can be called - * again. Do necessary wakeups for existing sleepers. - * - * Note: nobody should set this bit except via this function. Clearing - * directly is allowed. - */ - -static void tty_ldisc_enable(struct tty_struct *tty) -{ - set_bit(TTY_LDISC, &tty->flags); - wake_up(&tty_ldisc_wait); -} - -/** - * tty_ldisc_restore - helper for tty ldisc change - * @tty: tty to recover - * @old: previous ldisc - * - * Restore the previous line discipline or N_TTY when a line discipline - * change fails due to an open error - */ - -static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) -{ - char buf[64]; - struct tty_ldisc new_ldisc; - - /* There is an outstanding reference here so this is safe */ - tty_ldisc_get(old->ops->num, old); - tty_ldisc_assign(tty, old); - tty_set_termios_ldisc(tty, old->ops->num); - if (old->ops->open && (old->ops->open(tty) < 0)) { - tty_ldisc_put(old->ops); - /* This driver is always present */ - if (tty_ldisc_get(N_TTY, &new_ldisc) < 0) - panic("n_tty: get"); - tty_ldisc_assign(tty, &new_ldisc); - tty_set_termios_ldisc(tty, N_TTY); - if (new_ldisc.ops->open) { - int r = new_ldisc.ops->open(tty); - if (r < 0) - panic("Couldn't open N_TTY ldisc for " - "%s --- error %d.", - tty_name(tty, buf), r); - } - } -} - -/** - * tty_set_ldisc - set line discipline - * @tty: the terminal to set - * @ldisc: the line discipline - * - * Set the discipline of a tty line. Must be called from a process - * context. - * - * Locking: takes tty_ldisc_lock. - * called functions take termios_mutex - */ - -static int tty_set_ldisc(struct tty_struct *tty, int ldisc) -{ - int retval; - struct tty_ldisc o_ldisc, new_ldisc; - int work; - unsigned long flags; - struct tty_struct *o_tty; - -restart: - /* This is a bit ugly for now but means we can break the 'ldisc - is part of the tty struct' assumption later */ - retval = tty_ldisc_get(ldisc, &new_ldisc); - if (retval) - return retval; - - /* - * Problem: What do we do if this blocks ? - */ - - tty_wait_until_sent(tty, 0); - - if (tty->ldisc.ops->num == ldisc) { - tty_ldisc_put(new_ldisc.ops); - return 0; - } - - /* - * No more input please, we are switching. The new ldisc - * will update this value in the ldisc open function - */ - - tty->receive_room = 0; - - o_ldisc = tty->ldisc; - o_tty = tty->link; - - /* - * Make sure we don't change while someone holds a - * reference to the line discipline. The TTY_LDISC bit - * prevents anyone taking a reference once it is clear. - * We need the lock to avoid racing reference takers. - */ - - spin_lock_irqsave(&tty_ldisc_lock, flags); - if (tty->ldisc.refcount || (o_tty && o_tty->ldisc.refcount)) { - if (tty->ldisc.refcount) { - /* Free the new ldisc we grabbed. Must drop the lock - first. */ - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(o_ldisc.ops); - /* - * There are several reasons we may be busy, including - * random momentary I/O traffic. We must therefore - * retry. We could distinguish between blocking ops - * and retries if we made tty_ldisc_wait() smarter. - * That is up for discussion. - */ - if (wait_event_interruptible(tty_ldisc_wait, tty->ldisc.refcount == 0) < 0) - return -ERESTARTSYS; - goto restart; - } - if (o_tty && o_tty->ldisc.refcount) { - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(o_tty->ldisc.ops); - if (wait_event_interruptible(tty_ldisc_wait, o_tty->ldisc.refcount == 0) < 0) - return -ERESTARTSYS; - goto restart; - } - } - /* - * If the TTY_LDISC bit is set, then we are racing against - * another ldisc change - */ - if (!test_bit(TTY_LDISC, &tty->flags)) { - struct tty_ldisc *ld; - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(new_ldisc.ops); - ld = tty_ldisc_ref_wait(tty); - tty_ldisc_deref(ld); - goto restart; - } - - clear_bit(TTY_LDISC, &tty->flags); - if (o_tty) - clear_bit(TTY_LDISC, &o_tty->flags); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - - /* - * From this point on we know nobody has an ldisc - * usage reference, nor can they obtain one until - * we say so later on. - */ - - work = cancel_delayed_work(&tty->buf.work); - /* - * Wait for ->hangup_work and ->buf.work handlers to terminate - * MUST NOT hold locks here. - */ - flush_scheduled_work(); - /* Shutdown the current discipline. */ - if (o_ldisc.ops->close) - (o_ldisc.ops->close)(tty); - - /* Now set up the new line discipline. */ - tty_ldisc_assign(tty, &new_ldisc); - tty_set_termios_ldisc(tty, ldisc); - if (new_ldisc.ops->open) - retval = (new_ldisc.ops->open)(tty); - if (retval < 0) { - tty_ldisc_put(new_ldisc.ops); - tty_ldisc_restore(tty, &o_ldisc); - } - /* At this point we hold a reference to the new ldisc and a - a reference to the old ldisc. If we ended up flipping back - to the existing ldisc we have two references to it */ - - if (tty->ldisc.ops->num != o_ldisc.ops->num && tty->ops->set_ldisc) - tty->ops->set_ldisc(tty); - - tty_ldisc_put(o_ldisc.ops); - - /* - * Allow ldisc referencing to occur as soon as the driver - * ldisc callback completes. - */ - - tty_ldisc_enable(tty); - if (o_tty) - tty_ldisc_enable(o_tty); - - /* Restart it in case no characters kick it off. Safe if - already running */ - if (work) - schedule_delayed_work(&tty->buf.work, 1); - return retval; -} - /** * get_tty_driver - find device of a tty * @dev_t: device identifier @@ -2193,7 +1641,6 @@ static int init_dev(struct tty_driver *driver, int idx, struct ktermios *tp, **tp_loc, *o_tp, **o_tp_loc; struct ktermios *ltp, **ltp_loc, *o_ltp, **o_ltp_loc; int retval = 0; - struct tty_ldisc *ld; /* check whether we're reopening an existing tty */ if (driver->flags & TTY_DRIVER_DEVPTS_MEM) { @@ -2342,25 +1789,12 @@ static int init_dev(struct tty_driver *driver, int idx, * If we fail here just call release_tty to clean up. No need * to decrement the use counts, as release_tty doesn't care. */ - - ld = &tty->ldisc; - if (ld->ops->open) { - retval = (ld->ops->open)(tty); - if (retval) - goto release_mem_out; - } - if (o_tty && o_tty->ldisc.ops->open) { - retval = (o_tty->ldisc.ops->open)(o_tty); - if (retval) { - if (ld->ops->close) - (ld->ops->close)(tty); - goto release_mem_out; - } - tty_ldisc_enable(o_tty); - } - tty_ldisc_enable(tty); - goto success; + retval = tty_ldisc_setup(tty, o_tty); + + if (retval) + goto release_mem_out; + goto success; /* * This fast open can be used if the tty is already open. @@ -2498,12 +1932,10 @@ static void release_tty(struct tty_struct *tty, int idx) static void release_dev(struct file *filp) { struct tty_struct *tty, *o_tty; - struct tty_ldisc ld; int pty_master, tty_closing, o_tty_closing, do_sleep; int devpts; int idx; char buf[64]; - unsigned long flags; tty = (struct tty_struct *)filp->private_data; if (tty_paranoia_check(tty, filp->f_path.dentry->d_inode, @@ -2705,56 +2137,9 @@ static void release_dev(struct file *filp) printk(KERN_DEBUG "freeing tty structure..."); #endif /* - * Prevent flush_to_ldisc() from rescheduling the work for later. Then - * kill any delayed work. As this is the final close it does not - * race with the set_ldisc code path. - */ - clear_bit(TTY_LDISC, &tty->flags); - cancel_delayed_work(&tty->buf.work); - - /* - * Wait for ->hangup_work and ->buf.work handlers to terminate - */ - - flush_scheduled_work(); - - /* - * Wait for any short term users (we know they are just driver - * side waiters as the file is closing so user count on the file - * side is zero. + * Ask the line discipline code to release its structures */ - spin_lock_irqsave(&tty_ldisc_lock, flags); - while (tty->ldisc.refcount) { - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - wait_event(tty_ldisc_wait, tty->ldisc.refcount == 0); - spin_lock_irqsave(&tty_ldisc_lock, flags); - } - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - /* - * Shutdown the current line discipline, and reset it to N_TTY. - * - * FIXME: this MUST get fixed for the new reflocking - */ - if (tty->ldisc.ops->close) - (tty->ldisc.ops->close)(tty); - tty_ldisc_put(tty->ldisc.ops); - - /* - * Switch the line discipline back - */ - WARN_ON(tty_ldisc_get(N_TTY, &ld)); - tty_ldisc_assign(tty, &ld); - tty_set_termios_ldisc(tty, N_TTY); - if (o_tty) { - /* FIXME: could o_tty be in setldisc here ? */ - clear_bit(TTY_LDISC, &o_tty->flags); - if (o_tty->ldisc.ops->close) - (o_tty->ldisc.ops->close)(o_tty); - tty_ldisc_put(o_tty->ldisc.ops); - WARN_ON(tty_ldisc_get(N_TTY, &ld)); - tty_ldisc_assign(o_tty, &ld); - tty_set_termios_ldisc(o_tty, N_TTY); - } + tty_ldisc_release(tty, o_tty); /* * The release_tty function takes care of the details of clearing * the slots and preserving the termios structure. @@ -3962,12 +3347,9 @@ EXPORT_SYMBOL(tty_flip_buffer_push); static void initialize_tty_struct(struct tty_struct *tty) { - struct tty_ldisc ld; memset(tty, 0, sizeof(struct tty_struct)); tty->magic = TTY_MAGIC; - if (tty_ldisc_get(N_TTY, &ld) < 0) - panic("n_tty: init_tty"); - tty_ldisc_assign(tty, &ld); + tty_ldisc_init(tty); tty->session = NULL; tty->pgrp = NULL; tty->overrun_time = jiffies; @@ -4280,7 +3662,7 @@ void __init console_init(void) initcall_t *call; /* Setup the default TTY line discipline. */ - (void) tty_register_ldisc(N_TTY, &tty_ldisc_N_TTY); + tty_ldisc_begin(); /* * set up the console device so that later boot sequences can diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c new file mode 100644 index 000000000000..241cbdea65ab --- /dev/null +++ b/drivers/char/tty_ldisc.c @@ -0,0 +1,714 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include + +#include +#include + +/* + * This guards the refcounted line discipline lists. The lock + * must be taken with irqs off because there are hangup path + * callers who will do ldisc lookups and cannot sleep. + */ + +static DEFINE_SPINLOCK(tty_ldisc_lock); +static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait); +/* Line disc dispatch table */ +static struct tty_ldisc_ops *tty_ldiscs[NR_LDISCS]; + +/** + * tty_register_ldisc - install a line discipline + * @disc: ldisc number + * @new_ldisc: pointer to the ldisc object + * + * Installs a new line discipline into the kernel. The discipline + * is set up as unreferenced and then made available to the kernel + * from this point onwards. + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + +int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc) +{ + unsigned long flags; + int ret = 0; + + if (disc < N_TTY || disc >= NR_LDISCS) + return -EINVAL; + + spin_lock_irqsave(&tty_ldisc_lock, flags); + tty_ldiscs[disc] = new_ldisc; + new_ldisc->num = disc; + new_ldisc->refcount = 0; + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + + return ret; +} +EXPORT_SYMBOL(tty_register_ldisc); + +/** + * tty_unregister_ldisc - unload a line discipline + * @disc: ldisc number + * @new_ldisc: pointer to the ldisc object + * + * Remove a line discipline from the kernel providing it is not + * currently in use. + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + +int tty_unregister_ldisc(int disc) +{ + unsigned long flags; + int ret = 0; + + if (disc < N_TTY || disc >= NR_LDISCS) + return -EINVAL; + + spin_lock_irqsave(&tty_ldisc_lock, flags); + if (tty_ldiscs[disc]->refcount) + ret = -EBUSY; + else + tty_ldiscs[disc] = NULL; + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + + return ret; +} +EXPORT_SYMBOL(tty_unregister_ldisc); + + +/** + * tty_ldisc_try_get - try and reference an ldisc + * @disc: ldisc number + * @ld: tty ldisc structure to complete + * + * Attempt to open and lock a line discipline into place. Return + * the line discipline refcounted and assigned in ld. On an error + * report the error code back + */ + +static int tty_ldisc_try_get(int disc, struct tty_ldisc *ld) +{ + unsigned long flags; + struct tty_ldisc_ops *ldops; + int err = -EINVAL; + + spin_lock_irqsave(&tty_ldisc_lock, flags); + ld->ops = NULL; + ldops = tty_ldiscs[disc]; + /* Check the entry is defined */ + if (ldops) { + /* If the module is being unloaded we can't use it */ + if (!try_module_get(ldops->owner)) + err = -EAGAIN; + else { + /* lock it */ + ldops->refcount++; + ld->ops = ldops; + err = 0; + } + } + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + return err; +} + +/** + * tty_ldisc_get - take a reference to an ldisc + * @disc: ldisc number + * @ld: tty line discipline structure to use + * + * Takes a reference to a line discipline. Deals with refcounts and + * module locking counts. Returns NULL if the discipline is not available. + * Returns a pointer to the discipline and bumps the ref count if it is + * available + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + +static int tty_ldisc_get(int disc, struct tty_ldisc *ld) +{ + int err; + + if (disc < N_TTY || disc >= NR_LDISCS) + return -EINVAL; + err = tty_ldisc_try_get(disc, ld); + if (err == -EAGAIN) { + request_module("tty-ldisc-%d", disc); + err = tty_ldisc_try_get(disc, ld); + } + return err; +} + +/** + * tty_ldisc_put - drop ldisc reference + * @disc: ldisc number + * + * Drop a reference to a line discipline. Manage refcounts and + * module usage counts + * + * Locking: + * takes tty_ldisc_lock to guard against ldisc races + */ + +static void tty_ldisc_put(struct tty_ldisc_ops *ld) +{ + unsigned long flags; + int disc = ld->num; + + BUG_ON(disc < N_TTY || disc >= NR_LDISCS); + + spin_lock_irqsave(&tty_ldisc_lock, flags); + ld = tty_ldiscs[disc]; + BUG_ON(ld->refcount == 0); + ld->refcount--; + module_put(ld->owner); + spin_unlock_irqrestore(&tty_ldisc_lock, flags); +} + +static void * tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos) +{ + return (*pos < NR_LDISCS) ? pos : NULL; +} + +static void * tty_ldiscs_seq_next(struct seq_file *m, void *v, loff_t *pos) +{ + (*pos)++; + return (*pos < NR_LDISCS) ? pos : NULL; +} + +static void tty_ldiscs_seq_stop(struct seq_file *m, void *v) +{ +} + +static int tty_ldiscs_seq_show(struct seq_file *m, void *v) +{ + int i = *(loff_t *)v; + struct tty_ldisc ld; + + if (tty_ldisc_get(i, &ld) < 0) + return 0; + seq_printf(m, "%-10s %2d\n", ld.ops->name ? ld.ops->name : "???", i); + tty_ldisc_put(ld.ops); + return 0; +} + +static const struct seq_operations tty_ldiscs_seq_ops = { + .start = tty_ldiscs_seq_start, + .next = tty_ldiscs_seq_next, + .stop = tty_ldiscs_seq_stop, + .show = tty_ldiscs_seq_show, +}; + +static int proc_tty_ldiscs_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &tty_ldiscs_seq_ops); +} + +const struct file_operations tty_ldiscs_proc_fops = { + .owner = THIS_MODULE, + .open = proc_tty_ldiscs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/** + * tty_ldisc_assign - set ldisc on a tty + * @tty: tty to assign + * @ld: line discipline + * + * Install an instance of a line discipline into a tty structure. The + * ldisc must have a reference count above zero to ensure it remains/ + * The tty instance refcount starts at zero. + * + * Locking: + * Caller must hold references + */ + +static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) +{ + ld->refcount = 0; + tty->ldisc = *ld; +} + +/** + * tty_ldisc_try - internal helper + * @tty: the tty + * + * Make a single attempt to grab and bump the refcount on + * the tty ldisc. Return 0 on failure or 1 on success. This is + * used to implement both the waiting and non waiting versions + * of tty_ldisc_ref + * + * Locking: takes tty_ldisc_lock + */ + +static int tty_ldisc_try(struct tty_struct *tty) +{ + unsigned long flags; + struct tty_ldisc *ld; + int ret = 0; + + spin_lock_irqsave(&tty_ldisc_lock, flags); + ld = &tty->ldisc; + if (test_bit(TTY_LDISC, &tty->flags)) { + ld->refcount++; + ret = 1; + } + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + return ret; +} + +/** + * tty_ldisc_ref_wait - wait for the tty ldisc + * @tty: tty device + * + * Dereference the line discipline for the terminal and take a + * reference to it. If the line discipline is in flux then + * wait patiently until it changes. + * + * Note: Must not be called from an IRQ/timer context. The caller + * must also be careful not to hold other locks that will deadlock + * against a discipline change, such as an existing ldisc reference + * (which we check for) + * + * Locking: call functions take tty_ldisc_lock + */ + +struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty) +{ + /* wait_event is a macro */ + wait_event(tty_ldisc_wait, tty_ldisc_try(tty)); + if (tty->ldisc.refcount == 0) + printk(KERN_ERR "tty_ldisc_ref_wait\n"); + return &tty->ldisc; +} + +EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); + +/** + * tty_ldisc_ref - get the tty ldisc + * @tty: tty device + * + * Dereference the line discipline for the terminal and take a + * reference to it. If the line discipline is in flux then + * return NULL. Can be called from IRQ and timer functions. + * + * Locking: called functions take tty_ldisc_lock + */ + +struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty) +{ + if (tty_ldisc_try(tty)) + return &tty->ldisc; + return NULL; +} + +EXPORT_SYMBOL_GPL(tty_ldisc_ref); + +/** + * tty_ldisc_deref - free a tty ldisc reference + * @ld: reference to free up + * + * Undoes the effect of tty_ldisc_ref or tty_ldisc_ref_wait. May + * be called in IRQ context. + * + * Locking: takes tty_ldisc_lock + */ + +void tty_ldisc_deref(struct tty_ldisc *ld) +{ + unsigned long flags; + + BUG_ON(ld == NULL); + + spin_lock_irqsave(&tty_ldisc_lock, flags); + if (ld->refcount == 0) + printk(KERN_ERR "tty_ldisc_deref: no references.\n"); + else + ld->refcount--; + if (ld->refcount == 0) + wake_up(&tty_ldisc_wait); + spin_unlock_irqrestore(&tty_ldisc_lock, flags); +} + +EXPORT_SYMBOL_GPL(tty_ldisc_deref); + +/** + * tty_ldisc_enable - allow ldisc use + * @tty: terminal to activate ldisc on + * + * Set the TTY_LDISC flag when the line discipline can be called + * again. Do necessary wakeups for existing sleepers. + * + * Note: nobody should set this bit except via this function. Clearing + * directly is allowed. + */ + +void tty_ldisc_enable(struct tty_struct *tty) +{ + set_bit(TTY_LDISC, &tty->flags); + wake_up(&tty_ldisc_wait); +} + +/** + * tty_set_termios_ldisc - set ldisc field + * @tty: tty structure + * @num: line discipline number + * + * This is probably overkill for real world processors but + * they are not on hot paths so a little discipline won't do + * any harm. + * + * Locking: takes termios_mutex + */ + +static void tty_set_termios_ldisc(struct tty_struct *tty, int num) +{ + mutex_lock(&tty->termios_mutex); + tty->termios->c_line = num; + mutex_unlock(&tty->termios_mutex); +} + + +/** + * tty_ldisc_restore - helper for tty ldisc change + * @tty: tty to recover + * @old: previous ldisc + * + * Restore the previous line discipline or N_TTY when a line discipline + * change fails due to an open error + */ + +static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) +{ + char buf[64]; + struct tty_ldisc new_ldisc; + + /* There is an outstanding reference here so this is safe */ + tty_ldisc_get(old->ops->num, old); + tty_ldisc_assign(tty, old); + tty_set_termios_ldisc(tty, old->ops->num); + if (old->ops->open && (old->ops->open(tty) < 0)) { + tty_ldisc_put(old->ops); + /* This driver is always present */ + if (tty_ldisc_get(N_TTY, &new_ldisc) < 0) + panic("n_tty: get"); + tty_ldisc_assign(tty, &new_ldisc); + tty_set_termios_ldisc(tty, N_TTY); + if (new_ldisc.ops->open) { + int r = new_ldisc.ops->open(tty); + if (r < 0) + panic("Couldn't open N_TTY ldisc for " + "%s --- error %d.", + tty_name(tty, buf), r); + } + } +} + +/** + * tty_set_ldisc - set line discipline + * @tty: the terminal to set + * @ldisc: the line discipline + * + * Set the discipline of a tty line. Must be called from a process + * context. + * + * Locking: takes tty_ldisc_lock. + * called functions take termios_mutex + */ + +int tty_set_ldisc(struct tty_struct *tty, int ldisc) +{ + int retval; + struct tty_ldisc o_ldisc, new_ldisc; + int work; + unsigned long flags; + struct tty_struct *o_tty; + +restart: + /* This is a bit ugly for now but means we can break the 'ldisc + is part of the tty struct' assumption later */ + retval = tty_ldisc_get(ldisc, &new_ldisc); + if (retval) + return retval; + + /* + * Problem: What do we do if this blocks ? + */ + + tty_wait_until_sent(tty, 0); + + if (tty->ldisc.ops->num == ldisc) { + tty_ldisc_put(new_ldisc.ops); + return 0; + } + + /* + * No more input please, we are switching. The new ldisc + * will update this value in the ldisc open function + */ + + tty->receive_room = 0; + + o_ldisc = tty->ldisc; + o_tty = tty->link; + + /* + * Make sure we don't change while someone holds a + * reference to the line discipline. The TTY_LDISC bit + * prevents anyone taking a reference once it is clear. + * We need the lock to avoid racing reference takers. + */ + + spin_lock_irqsave(&tty_ldisc_lock, flags); + if (tty->ldisc.refcount || (o_tty && o_tty->ldisc.refcount)) { + if (tty->ldisc.refcount) { + /* Free the new ldisc we grabbed. Must drop the lock + first. */ + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + tty_ldisc_put(o_ldisc.ops); + /* + * There are several reasons we may be busy, including + * random momentary I/O traffic. We must therefore + * retry. We could distinguish between blocking ops + * and retries if we made tty_ldisc_wait() smarter. + * That is up for discussion. + */ + if (wait_event_interruptible(tty_ldisc_wait, tty->ldisc.refcount == 0) < 0) + return -ERESTARTSYS; + goto restart; + } + if (o_tty && o_tty->ldisc.refcount) { + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + tty_ldisc_put(o_tty->ldisc.ops); + if (wait_event_interruptible(tty_ldisc_wait, o_tty->ldisc.refcount == 0) < 0) + return -ERESTARTSYS; + goto restart; + } + } + /* + * If the TTY_LDISC bit is set, then we are racing against + * another ldisc change + */ + if (!test_bit(TTY_LDISC, &tty->flags)) { + struct tty_ldisc *ld; + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + tty_ldisc_put(new_ldisc.ops); + ld = tty_ldisc_ref_wait(tty); + tty_ldisc_deref(ld); + goto restart; + } + + clear_bit(TTY_LDISC, &tty->flags); + if (o_tty) + clear_bit(TTY_LDISC, &o_tty->flags); + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + + /* + * From this point on we know nobody has an ldisc + * usage reference, nor can they obtain one until + * we say so later on. + */ + + work = cancel_delayed_work(&tty->buf.work); + /* + * Wait for ->hangup_work and ->buf.work handlers to terminate + * MUST NOT hold locks here. + */ + flush_scheduled_work(); + /* Shutdown the current discipline. */ + if (o_ldisc.ops->close) + (o_ldisc.ops->close)(tty); + + /* Now set up the new line discipline. */ + tty_ldisc_assign(tty, &new_ldisc); + tty_set_termios_ldisc(tty, ldisc); + if (new_ldisc.ops->open) + retval = (new_ldisc.ops->open)(tty); + if (retval < 0) { + tty_ldisc_put(new_ldisc.ops); + tty_ldisc_restore(tty, &o_ldisc); + } + /* At this point we hold a reference to the new ldisc and a + a reference to the old ldisc. If we ended up flipping back + to the existing ldisc we have two references to it */ + + if (tty->ldisc.ops->num != o_ldisc.ops->num && tty->ops->set_ldisc) + tty->ops->set_ldisc(tty); + + tty_ldisc_put(o_ldisc.ops); + + /* + * Allow ldisc referencing to occur as soon as the driver + * ldisc callback completes. + */ + + tty_ldisc_enable(tty); + if (o_tty) + tty_ldisc_enable(o_tty); + + /* Restart it in case no characters kick it off. Safe if + already running */ + if (work) + schedule_delayed_work(&tty->buf.work, 1); + return retval; +} + + +/** + * tty_ldisc_setup - open line discipline + * @tty: tty being shut down + * @o_tty: pair tty for pty/tty pairs + * + * Called during the initial open of a tty/pty pair in order to set up the + * line discplines and bind them to the tty. + */ + +int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty) +{ + struct tty_ldisc *ld = &tty->ldisc; + int retval; + + if (ld->ops->open) { + retval = (ld->ops->open)(tty); + if (retval) + return retval; + } + if (o_tty && o_tty->ldisc.ops->open) { + retval = (o_tty->ldisc.ops->open)(o_tty); + if (retval) { + if (ld->ops->close) + (ld->ops->close)(tty); + return retval; + } + tty_ldisc_enable(o_tty); + } + tty_ldisc_enable(tty); + return 0; +} + +/** + * tty_ldisc_release - release line discipline + * @tty: tty being shut down + * @o_tty: pair tty for pty/tty pairs + * + * Called during the final close of a tty/pty pair in order to shut down the + * line discpline layer. + */ + +void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty) +{ + unsigned long flags; + struct tty_ldisc ld; + /* + * Prevent flush_to_ldisc() from rescheduling the work for later. Then + * kill any delayed work. As this is the final close it does not + * race with the set_ldisc code path. + */ + clear_bit(TTY_LDISC, &tty->flags); + cancel_delayed_work(&tty->buf.work); + + /* + * Wait for ->hangup_work and ->buf.work handlers to terminate + */ + + flush_scheduled_work(); + + /* + * Wait for any short term users (we know they are just driver + * side waiters as the file is closing so user count on the file + * side is zero. + */ + spin_lock_irqsave(&tty_ldisc_lock, flags); + while (tty->ldisc.refcount) { + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + wait_event(tty_ldisc_wait, tty->ldisc.refcount == 0); + spin_lock_irqsave(&tty_ldisc_lock, flags); + } + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + /* + * Shutdown the current line discipline, and reset it to N_TTY. + * + * FIXME: this MUST get fixed for the new reflocking + */ + if (tty->ldisc.ops->close) + (tty->ldisc.ops->close)(tty); + tty_ldisc_put(tty->ldisc.ops); + + /* + * Switch the line discipline back + */ + WARN_ON(tty_ldisc_get(N_TTY, &ld)); + tty_ldisc_assign(tty, &ld); + tty_set_termios_ldisc(tty, N_TTY); + if (o_tty) { + /* FIXME: could o_tty be in setldisc here ? */ + clear_bit(TTY_LDISC, &o_tty->flags); + if (o_tty->ldisc.ops->close) + (o_tty->ldisc.ops->close)(o_tty); + tty_ldisc_put(o_tty->ldisc.ops); + WARN_ON(tty_ldisc_get(N_TTY, &ld)); + tty_ldisc_assign(o_tty, &ld); + tty_set_termios_ldisc(o_tty, N_TTY); + } +} + +/** + * tty_ldisc_init - ldisc setup for new tty + * @tty: tty being allocated + * + * Set up the line discipline objects for a newly allocated tty. Note that + * the tty structure is not completely set up when this call is made. + */ + +void tty_ldisc_init(struct tty_struct *tty) +{ + struct tty_ldisc ld; + if (tty_ldisc_get(N_TTY, &ld) < 0) + panic("n_tty: init_tty"); + tty_ldisc_assign(tty, &ld); +} + +void tty_ldisc_begin(void) +{ + /* Setup the default TTY line discipline. */ + (void) tty_register_ldisc(N_TTY, &tty_ldisc_N_TTY); +} diff --git a/include/linux/tty.h b/include/linux/tty.h index 4e5833073aa6..e3579cb086e0 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -317,8 +317,6 @@ extern void tty_wait_until_sent(struct tty_struct *tty, long timeout); extern int tty_check_change(struct tty_struct *tty); extern void stop_tty(struct tty_struct *tty); extern void start_tty(struct tty_struct *tty); -extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc); -extern int tty_unregister_ldisc(int disc); extern int tty_register_driver(struct tty_driver *driver); extern int tty_unregister_driver(struct tty_driver *driver); extern struct device *tty_register_device(struct tty_driver *driver, @@ -383,6 +381,15 @@ extern void tty_port_init(struct tty_port *port); extern int tty_port_alloc_xmit_buf(struct tty_port *port); extern void tty_port_free_xmit_buf(struct tty_port *port); +extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc); +extern int tty_unregister_ldisc(int disc); +extern int tty_set_ldisc(struct tty_struct *tty, int ldisc); +extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty); +extern void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty); +extern void tty_ldisc_init(struct tty_struct *tty); +extern void tty_ldisc_begin(void); +/* This last one is just for the tty layer internals and shouldn't be used elsewhere */ +extern void tty_ldisc_enable(struct tty_struct *tty); /* n_tty.c */ -- cgit v1.2.3 From 9e98966c7bb94355689478bc84cc3e0c190f977e Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 22 Jul 2008 11:18:03 +0100 Subject: tty: rework break handling Some hardware needs to do break handling itself and may have partial support only. Make break_ctl return an error code. Add a tty driver flag so you can indicate driver hardware side break support. Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/Kconfig | 2 +- drivers/char/amiserial.c | 3 +- drivers/char/cyclades.c | 8 ++--- drivers/char/esp.c | 5 +-- drivers/char/istallion.c | 11 +++--- drivers/char/moxa.c | 3 +- drivers/char/mxser.c | 3 +- drivers/char/pcmcia/synclink_cs.c | 5 +-- drivers/char/rocket.c | 5 +-- drivers/char/sx.c | 3 +- drivers/char/synclink.c | 7 ++-- drivers/char/synclink_gt.c | 9 ++--- drivers/char/synclinkmp.c | 9 ++--- drivers/char/tty_io.c | 71 +++++++++++++++------------------------ drivers/char/vme_scc.c | 5 +-- drivers/isdn/capi/capi.c | 3 +- drivers/serial/serial_core.c | 3 +- drivers/usb/class/cdc-acm.c | 9 +++-- drivers/usb/serial/usb-serial.c | 3 +- include/linux/tty_driver.h | 14 ++++++-- 20 files changed, 97 insertions(+), 84 deletions(-) (limited to 'include') diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index ba8782b9c217..a185263b5862 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -218,7 +218,7 @@ config MOXA_SMARTIO config ISI tristate "Multi-Tech multiport card support (EXPERIMENTAL)" - depends on SERIAL_NONSTANDARD && PCI + depends on SERIAL_NONSTANDARD && PCI && BROKEN select FW_LOADER help This is a driver for the Multi-Tech cards which provide several diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 37457e5a4f2b..3530ff417a51 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -1248,7 +1248,7 @@ static int rs_tiocmset(struct tty_struct *tty, struct file *file, /* * rs_break() --- routine which turns the break handling on or off */ -static void rs_break(struct tty_struct *tty, int break_state) +static int rs_break(struct tty_struct *tty, int break_state) { struct async_struct * info = (struct async_struct *)tty->driver_data; unsigned long flags; @@ -1263,6 +1263,7 @@ static void rs_break(struct tty_struct *tty, int break_state) custom.adkcon = AC_UARTBRK; mb(); local_irq_restore(flags); + return 0; } diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index e991dc85f2fb..fe6d774fe2e4 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -3700,14 +3700,15 @@ cy_tiocmset(struct tty_struct *tty, struct file *file, /* * cy_break() --- routine which turns the break handling on or off */ -static void cy_break(struct tty_struct *tty, int break_state) +static int cy_break(struct tty_struct *tty, int break_state) { struct cyclades_port *info = tty->driver_data; struct cyclades_card *card; unsigned long flags; + int retval = 0; if (serial_paranoia_check(info, tty->name, "cy_break")) - return; + return -EINVAL; card = info->card; @@ -3736,8 +3737,6 @@ static void cy_break(struct tty_struct *tty, int break_state) } } } else { - int retval; - if (break_state == -1) { retval = cyz_issue_cmd(card, info->line - card->first_line, @@ -3758,6 +3757,7 @@ static void cy_break(struct tty_struct *tty, int break_state) } } spin_unlock_irqrestore(&card->card_lock, flags); + return retval; } /* cy_break */ static int get_mon_info(struct cyclades_port *info, diff --git a/drivers/char/esp.c b/drivers/char/esp.c index 2eaf09f93e3d..7f077c0097f6 100644 --- a/drivers/char/esp.c +++ b/drivers/char/esp.c @@ -1725,13 +1725,13 @@ static int esp_tiocmset(struct tty_struct *tty, struct file *file, /* * rs_break() --- routine which turns the break handling on or off */ -static void esp_break(struct tty_struct *tty, int break_state) +static int esp_break(struct tty_struct *tty, int break_state) { struct esp_struct *info = tty->driver_data; unsigned long flags; if (serial_paranoia_check(info, tty->name, "esp_break")) - return; + return -EINVAL; if (break_state == -1) { spin_lock_irqsave(&info->lock, flags); @@ -1747,6 +1747,7 @@ static void esp_break(struct tty_struct *tty, int break_state) serial_out(info, UART_ESI_CMD2, 0x00); spin_unlock_irqrestore(&info->lock, flags); } + return 0; } static int rs_ioctl(struct tty_struct *tty, struct file *file, diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index 7930fba4bafc..63d22b5ebc0d 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -609,7 +609,7 @@ static void stli_unthrottle(struct tty_struct *tty); static void stli_stop(struct tty_struct *tty); static void stli_start(struct tty_struct *tty); static void stli_flushbuffer(struct tty_struct *tty); -static void stli_breakctl(struct tty_struct *tty, int state); +static int stli_breakctl(struct tty_struct *tty, int state); static void stli_waituntilsent(struct tty_struct *tty, int timeout); static void stli_sendxchar(struct tty_struct *tty, char ch); static void stli_hangup(struct tty_struct *tty); @@ -1909,7 +1909,7 @@ static void stli_flushbuffer(struct tty_struct *tty) /*****************************************************************************/ -static void stli_breakctl(struct tty_struct *tty, int state) +static int stli_breakctl(struct tty_struct *tty, int state) { struct stlibrd *brdp; struct stliport *portp; @@ -1917,15 +1917,16 @@ static void stli_breakctl(struct tty_struct *tty, int state) portp = tty->driver_data; if (portp == NULL) - return; + return -EINVAL; if (portp->brdnr >= stli_nrbrds) - return; + return -EINVAL; brdp = stli_brds[portp->brdnr]; if (brdp == NULL) - return; + return -EINVAL; arg = (state == -1) ? BREAKON : BREAKOFF; stli_cmdwait(brdp, portp, A_BREAK, &arg, sizeof(long), 0); + return 0; } /*****************************************************************************/ diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index 2bba250ffc8e..d3d7864e0c1e 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -374,12 +374,13 @@ copy: return ret; } -static void moxa_break_ctl(struct tty_struct *tty, int state) +static int moxa_break_ctl(struct tty_struct *tty, int state) { struct moxa_port *port = tty->driver_data; moxafunc(port->tableAddr, state ? FC_SendBreak : FC_StopBreak, Magic_code); + return 0; } static const struct tty_operations moxa_ops = { diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index 1fb25571bf85..f04c3c58a05a 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -2183,7 +2183,7 @@ static void mxser_hangup(struct tty_struct *tty) /* * mxser_rs_break() --- routine which turns the break handling on or off */ -static void mxser_rs_break(struct tty_struct *tty, int break_state) +static int mxser_rs_break(struct tty_struct *tty, int break_state) { struct mxser_port *info = tty->driver_data; unsigned long flags; @@ -2196,6 +2196,7 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state) outb(inb(info->ioaddr + UART_LCR) & ~UART_LCR_SBC, info->ioaddr + UART_LCR); spin_unlock_irqrestore(&info->slock, flags); + return 0; } static void mxser_receive_chars(struct mxser_port *port, int *status) diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index b694d430f10e..d1fceabe3aef 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2230,7 +2230,7 @@ static int tiocmset(struct tty_struct *tty, struct file *file, * Arguments: tty pointer to tty instance data * break_state -1=set break condition, 0=clear */ -static void mgslpc_break(struct tty_struct *tty, int break_state) +static int mgslpc_break(struct tty_struct *tty, int break_state) { MGSLPC_INFO * info = (MGSLPC_INFO *)tty->driver_data; unsigned long flags; @@ -2240,7 +2240,7 @@ static void mgslpc_break(struct tty_struct *tty, int break_state) __FILE__,__LINE__, info->device_name, break_state); if (mgslpc_paranoia_check(info, tty->name, "mgslpc_break")) - return; + return -EINVAL; spin_lock_irqsave(&info->lock,flags); if (break_state == -1) @@ -2248,6 +2248,7 @@ static void mgslpc_break(struct tty_struct *tty, int break_state) else clear_reg_bits(info, CHA+DAFO, BIT6); spin_unlock_irqrestore(&info->lock,flags); + return 0; } /* Service an IOCTL request diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index e670eae2f510..584d791e84a6 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -1236,13 +1236,13 @@ static void rp_set_termios(struct tty_struct *tty, } } -static void rp_break(struct tty_struct *tty, int break_state) +static int rp_break(struct tty_struct *tty, int break_state) { struct r_port *info = (struct r_port *) tty->driver_data; unsigned long flags; if (rocket_paranoia_check(info, "rp_break")) - return; + return -EINVAL; spin_lock_irqsave(&info->slock, flags); if (break_state == -1) @@ -1250,6 +1250,7 @@ static void rp_break(struct tty_struct *tty, int break_state) else sClrBreak(&info->channel); spin_unlock_irqrestore(&info->slock, flags); + return 0; } /* diff --git a/drivers/char/sx.c b/drivers/char/sx.c index d5cffcd6a572..2162439bbe48 100644 --- a/drivers/char/sx.c +++ b/drivers/char/sx.c @@ -1840,7 +1840,7 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, return rc; } -static void sx_break(struct tty_struct *tty, int flag) +static int sx_break(struct tty_struct *tty, int flag) { struct sx_port *port = tty->driver_data; int rv; @@ -1857,6 +1857,7 @@ static void sx_break(struct tty_struct *tty, int flag) read_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat))); unlock_kernel(); func_exit(); + return 0; } static int sx_tiocmget(struct tty_struct *tty, struct file *file) diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index 527d220aa4aa..ef6706f09061 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -2897,9 +2897,9 @@ static int tiocmset(struct tty_struct *tty, struct file *file, * * Arguments: tty pointer to tty instance data * break_state -1=set break condition, 0=clear - * Return Value: None + * Return Value: error code */ -static void mgsl_break(struct tty_struct *tty, int break_state) +static int mgsl_break(struct tty_struct *tty, int break_state) { struct mgsl_struct * info = (struct mgsl_struct *)tty->driver_data; unsigned long flags; @@ -2909,7 +2909,7 @@ static void mgsl_break(struct tty_struct *tty, int break_state) __FILE__,__LINE__, info->device_name, break_state); if (mgsl_paranoia_check(info, tty->name, "mgsl_break")) - return; + return -EINVAL; spin_lock_irqsave(&info->irq_spinlock,flags); if (break_state == -1) @@ -2917,6 +2917,7 @@ static void mgsl_break(struct tty_struct *tty, int break_state) else usc_OutReg(info,IOCR,(u16)(usc_InReg(info,IOCR) & ~BIT7)); spin_unlock_irqrestore(&info->irq_spinlock,flags); + return 0; } /* end of mgsl_break() */ diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 2c3e43bb2cc9..cf87bb89a77d 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -165,7 +165,7 @@ static int read_proc(char *page, char **start, off_t off, int count,int *eof, v static int chars_in_buffer(struct tty_struct *tty); static void throttle(struct tty_struct * tty); static void unthrottle(struct tty_struct * tty); -static void set_break(struct tty_struct *tty, int break_state); +static int set_break(struct tty_struct *tty, int break_state); /* * generic HDLC support and callbacks @@ -513,7 +513,7 @@ static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr); static int tiocmget(struct tty_struct *tty, struct file *file); static int tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); -static void set_break(struct tty_struct *tty, int break_state); +static int set_break(struct tty_struct *tty, int break_state); static int get_interface(struct slgt_info *info, int __user *if_mode); static int set_interface(struct slgt_info *info, int if_mode); static int set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio); @@ -1452,14 +1452,14 @@ static void unthrottle(struct tty_struct * tty) * set or clear transmit break condition * break_state -1=set break condition, 0=clear */ -static void set_break(struct tty_struct *tty, int break_state) +static int set_break(struct tty_struct *tty, int break_state) { struct slgt_info *info = tty->driver_data; unsigned short value; unsigned long flags; if (sanity_check(info, tty->name, "set_break")) - return; + return -EINVAL; DBGINFO(("%s set_break(%d)\n", info->device_name, break_state)); spin_lock_irqsave(&info->lock,flags); @@ -1470,6 +1470,7 @@ static void set_break(struct tty_struct *tty, int break_state) value &= ~BIT6; wr_reg16(info, TCR, value); spin_unlock_irqrestore(&info->lock,flags); + return 0; } #if SYNCLINK_GENERIC_HDLC diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c index 5768c4136342..c0490cbd0db2 100644 --- a/drivers/char/synclinkmp.c +++ b/drivers/char/synclinkmp.c @@ -527,7 +527,7 @@ static int read_proc(char *page, char **start, off_t off, int count,int *eof, v static int chars_in_buffer(struct tty_struct *tty); static void throttle(struct tty_struct * tty); static void unthrottle(struct tty_struct * tty); -static void set_break(struct tty_struct *tty, int break_state); +static int set_break(struct tty_struct *tty, int break_state); #if SYNCLINK_GENERIC_HDLC #define dev_to_port(D) (dev_to_hdlc(D)->priv) @@ -552,7 +552,7 @@ static int wait_mgsl_event(SLMP_INFO *info, int __user *mask_ptr); static int tiocmget(struct tty_struct *tty, struct file *file); static int tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); -static void set_break(struct tty_struct *tty, int break_state); +static int set_break(struct tty_struct *tty, int break_state); static void add_device(SLMP_INFO *info); static void device_init(int adapter_num, struct pci_dev *pdev); @@ -1587,7 +1587,7 @@ static void unthrottle(struct tty_struct * tty) /* set or clear transmit break condition * break_state -1=set break condition, 0=clear */ -static void set_break(struct tty_struct *tty, int break_state) +static int set_break(struct tty_struct *tty, int break_state) { unsigned char RegValue; SLMP_INFO * info = (SLMP_INFO *)tty->driver_data; @@ -1598,7 +1598,7 @@ static void set_break(struct tty_struct *tty, int break_state) __FILE__,__LINE__, info->device_name, break_state); if (sanity_check(info, tty->name, "set_break")) - return; + return -EINVAL; spin_lock_irqsave(&info->lock,flags); RegValue = read_reg(info, CTL); @@ -1608,6 +1608,7 @@ static void set_break(struct tty_struct *tty, int break_state) RegValue &= ~BIT3; write_reg(info, CTL, RegValue); spin_unlock_irqrestore(&info->lock,flags); + return 0; } #if SYNCLINK_GENERIC_HDLC diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index d27a08b374d0..d94cd8410c53 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -2849,16 +2849,29 @@ static int tiocsetd(struct tty_struct *tty, int __user *p) static int send_break(struct tty_struct *tty, unsigned int duration) { - if (tty_write_lock(tty, 0) < 0) - return -EINTR; - tty->ops->break_ctl(tty, -1); - if (!signal_pending(current)) - msleep_interruptible(duration); - tty->ops->break_ctl(tty, 0); - tty_write_unlock(tty); - if (signal_pending(current)) - return -EINTR; - return 0; + int retval; + + if (tty->ops->break_ctl == NULL) + return 0; + + if (tty->driver->flags & TTY_DRIVER_HARDWARE_BREAK) + retval = tty->ops->break_ctl(tty, duration); + else { + /* Do the work ourselves */ + if (tty_write_lock(tty, 0) < 0) + return -EINTR; + retval = tty->ops->break_ctl(tty, -1); + if (retval) + goto out; + if (!signal_pending(current)) + msleep_interruptible(duration); + retval = tty->ops->break_ctl(tty, 0); +out: + tty_write_unlock(tty); + if (signal_pending(current)) + retval = -EINTR; + } + return retval; } /** @@ -2949,36 +2962,6 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) tty->driver->subtype == PTY_TYPE_MASTER) real_tty = tty->link; - /* - * Break handling by driver - */ - - retval = -EINVAL; - - if (!tty->ops->break_ctl) { - switch (cmd) { - case TIOCSBRK: - case TIOCCBRK: - if (tty->ops->ioctl) - retval = tty->ops->ioctl(tty, file, cmd, arg); - if (retval != -EINVAL && retval != -ENOIOCTLCMD) - printk(KERN_WARNING "tty: driver %s needs updating to use break_ctl\n", tty->driver->name); - return retval; - - /* These two ioctl's always return success; even if */ - /* the driver doesn't support them. */ - case TCSBRK: - case TCSBRKP: - if (!tty->ops->ioctl) - return 0; - retval = tty->ops->ioctl(tty, file, cmd, arg); - if (retval != -EINVAL && retval != -ENOIOCTLCMD) - printk(KERN_WARNING "tty: driver %s needs updating to use break_ctl\n", tty->driver->name); - if (retval == -ENOIOCTLCMD) - retval = 0; - return retval; - } - } /* * Factor out some common prep work @@ -3000,6 +2983,9 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break; } + /* + * Now do the stuff. + */ switch (cmd) { case TIOCSTI: return tiocsti(tty, p); @@ -3043,12 +3029,11 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) */ case TIOCSBRK: /* Turn break on, unconditionally */ if (tty->ops->break_ctl) - tty->ops->break_ctl(tty, -1); + return tty->ops->break_ctl(tty, -1); return 0; - case TIOCCBRK: /* Turn break off, unconditionally */ if (tty->ops->break_ctl) - tty->ops->break_ctl(tty, 0); + return tty->ops->break_ctl(tty, 0); return 0; case TCSBRK: /* SVID version: non-zero arg --> no break */ /* non-zero arg means wait for all output data diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c index f17ac043b551..69c5afe97f19 100644 --- a/drivers/char/vme_scc.c +++ b/drivers/char/vme_scc.c @@ -85,7 +85,7 @@ static irqreturn_t scc_rx_int(int irq, void *data); static irqreturn_t scc_stat_int(int irq, void *data); static irqreturn_t scc_spcond_int(int irq, void *data); static void scc_setsignals(struct scc_port *port, int dtr, int rts); -static void scc_break_ctl(struct tty_struct *tty, int break_state); +static int scc_break_ctl(struct tty_struct *tty, int break_state); static struct tty_driver *scc_driver; @@ -942,7 +942,7 @@ static int scc_ioctl(struct tty_struct *tty, struct file *file, } -static void scc_break_ctl(struct tty_struct *tty, int break_state) +static int scc_break_ctl(struct tty_struct *tty, int break_state) { struct scc_port *port = (struct scc_port *)tty->driver_data; unsigned long flags; @@ -952,6 +952,7 @@ static void scc_break_ctl(struct tty_struct *tty, int break_state) SCCmod(TX_CTRL_REG, ~TCR_SEND_BREAK, break_state ? TCR_SEND_BREAK : 0); local_irq_restore(flags); + return 0; } diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 8a35029caca0..19e005e81fef 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1302,11 +1302,12 @@ static void capinc_tty_hangup(struct tty_struct *tty) #endif } -static void capinc_tty_break_ctl(struct tty_struct *tty, int state) +static int capinc_tty_break_ctl(struct tty_struct *tty, int state) { #ifdef _DEBUG_TTYFUNCS printk(KERN_DEBUG "capinc_tty_break_ctl(%d)\n", state); #endif + return 0; } static void capinc_tty_flush_buffer(struct tty_struct *tty) diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 0bce1fe2c62a..f977c98cfa95 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -934,7 +934,7 @@ uart_tiocmset(struct tty_struct *tty, struct file *file, return ret; } -static void uart_break_ctl(struct tty_struct *tty, int break_state) +static int uart_break_ctl(struct tty_struct *tty, int break_state) { struct uart_state *state = tty->driver_data; struct uart_port *port = state->port; @@ -945,6 +945,7 @@ static void uart_break_ctl(struct tty_struct *tty, int break_state) port->ops->break_ctl(port, break_state); mutex_unlock(&state->mutex); + return 0; } static int uart_do_autoconfig(struct uart_state *state) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 95ae6377d7e5..0725b1871f23 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -732,13 +732,16 @@ static void acm_tty_unthrottle(struct tty_struct *tty) tasklet_schedule(&acm->urb_task); } -static void acm_tty_break_ctl(struct tty_struct *tty, int state) +static int acm_tty_break_ctl(struct tty_struct *tty, int state) { struct acm *acm = tty->driver_data; + int retval; if (!ACM_READY(acm)) - return; - if (acm_send_break(acm, state ? 0xffff : 0)) + return -EINVAL; + retval = acm_send_break(acm, state ? 0xffff : 0); + if (retval < 0) dbg("send break failed"); + return retval; } static int acm_tty_tiocmget(struct tty_struct *tty, struct file *file) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 51917b0f079a..8c2d531eedea 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -395,7 +395,7 @@ static void serial_set_termios(struct tty_struct *tty, struct ktermios *old) tty_termios_copy_hw(tty->termios, old); } -static void serial_break(struct tty_struct *tty, int break_state) +static int serial_break(struct tty_struct *tty, int break_state) { struct usb_serial_port *port = tty->driver_data; @@ -409,6 +409,7 @@ static void serial_break(struct tty_struct *tty, int break_state) port->serial->type->break_ctl(tty, break_state); unlock_kernel(); } + return 0; } static int serial_read_proc(char *page, char **start, off_t off, int count, diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h index d2a003586761..e1065ac0d922 100644 --- a/include/linux/tty_driver.h +++ b/include/linux/tty_driver.h @@ -135,7 +135,7 @@ * * Optional: * - * void (*break_ctl)(struct tty_stuct *tty, int state); + * int (*break_ctl)(struct tty_stuct *tty, int state); * * This optional routine requests the tty driver to turn on or * off BREAK status on the RS-232 port. If state is -1, @@ -146,6 +146,10 @@ * handle the following ioctls: TCSBRK, TCSBRKP, TIOCSBRK, * TIOCCBRK. * + * If the driver sets TTY_DRIVER_HARDWARE_BREAK then the interface + * will also be called with actual times and the hardware is expected + * to do the delay work itself. 0 and -1 are still used for on/off. + * * Optional: Required for TCSBRK/BRKP/etc handling. * * void (*wait_until_sent)(struct tty_struct *tty, int timeout); @@ -192,7 +196,7 @@ struct tty_operations { void (*stop)(struct tty_struct *tty); void (*start)(struct tty_struct *tty); void (*hangup)(struct tty_struct *tty); - void (*break_ctl)(struct tty_struct *tty, int state); + int (*break_ctl)(struct tty_struct *tty, int state); void (*flush_buffer)(struct tty_struct *tty); void (*set_ldisc)(struct tty_struct *tty); void (*wait_until_sent)(struct tty_struct *tty, int timeout); @@ -285,12 +289,18 @@ extern struct tty_driver *tty_find_polling_driver(char *name, int *line); * TTY_DRIVER_DEVPTS_MEM -- don't use the standard arrays, instead * use dynamic memory keyed through the devpts filesystem. This * is only applicable to the pty driver. + * + * TTY_DRIVER_HARDWARE_BREAK -- hardware handles break signals. Pass + * the requested timeout to the caller instead of using a simple + * on/off interface. + * */ #define TTY_DRIVER_INSTALLED 0x0001 #define TTY_DRIVER_RESET_TERMIOS 0x0002 #define TTY_DRIVER_REAL_RAW 0x0004 #define TTY_DRIVER_DYNAMIC_DEV 0x0008 #define TTY_DRIVER_DEVPTS_MEM 0x0010 +#define TTY_DRIVER_HARDWARE_BREAK 0x0020 /* tty driver types */ #define TTY_DRIVER_TYPE_SYSTEM 0x0001 -- cgit v1.2.3 From e5590717afd5fb6f494323206a1a35ea25610c2d Mon Sep 17 00:00:00 2001 From: Paul Fulghum Date: Tue, 22 Jul 2008 11:21:39 +0100 Subject: synclink_gt: add serial bit order control Add control of hardware serial bit order between LSB first (default/standard) and MSB first. Signed-off-by: Paul Fulghum Signed-off-by: Andrew Morton Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/synclink_gt.c | 2 ++ include/linux/synclink.h | 1 + 2 files changed, 3 insertions(+) (limited to 'include') diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 0e59cf54adaf..3cfc9e1f8882 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -4403,6 +4403,8 @@ static void msc_set_vcr(struct slgt_info *info) break; } + if (info->if_mode & MGSL_INTERFACE_MSB_FIRST) + val |= BIT4; if (info->signals & SerialSignal_DTR) val |= BIT3; if (info->signals & SerialSignal_RTS) diff --git a/include/linux/synclink.h b/include/linux/synclink.h index 45f6bc82d317..c844a229acc9 100644 --- a/include/linux/synclink.h +++ b/include/linux/synclink.h @@ -136,6 +136,7 @@ #define MGSL_INTERFACE_RTS_EN 0x10 #define MGSL_INTERFACE_LL 0x20 #define MGSL_INTERFACE_RL 0x40 +#define MGSL_INTERFACE_MSB_FIRST 0x80 typedef struct _MGSL_PARAMS { -- cgit v1.2.3 From 217d5a51953143046cf2972eebdefe2b2db05718 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 22 Jul 2008 17:43:42 +0200 Subject: fs_enet: Remove unused fields in the fs_mii_bb_platform_info structure. The mdio_port, mdio_bit, mdc_port and mdc_bit fields in the fs_mii_bb_platform_info structure are left-overs from the move to the Phy Abstraction Layer subsystem. They are not used anymore and can be safely removed. Signed-off-by: Laurent Pinchart Signed-off-by: Jeff Garzik --- include/linux/fs_enet_pd.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h index 9bc045b8c478..decc4b56ccf9 100644 --- a/include/linux/fs_enet_pd.h +++ b/include/linux/fs_enet_pd.h @@ -103,10 +103,6 @@ struct fs_mii_bb_platform_info { struct fs_mii_bit mdio_dir; struct fs_mii_bit mdio_dat; struct fs_mii_bit mdc_dat; - int mdio_port; /* port & bit for MDIO */ - int mdio_bit; - int mdc_port; /* port & bit for MDC */ - int mdc_bit; int delay; /* delay in us */ int irq[32]; /* irqs per phy's */ }; -- cgit v1.2.3 From d29f749e252bcdbfe7a75a58f0ee92da16f127c0 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 22 Jul 2008 14:09:06 -0700 Subject: net: Fix build failure with 'make mandocs'. The function header comments have to go with the functions they are documenting, or things go horribly wrong when we try to process them with the docbook tools. Warning(include/linux/netdevice.h:1006): No description found for parameter 'dev_queue' Warning(include/linux/netdevice.h:1033): No description found for parameter 'dev_queue' Warning(include/linux/netdevice.h:1067): No description found for parameter 'dev_queue' Warning(include/linux/netdevice.h:1093): No description found for parameter 'dev_queue' Warning(include/linux/netdevice.h:1474): No description found for parameter 'txq' Error(net/core/dev.c:1674): cannot understand prototype: 'u32 simple_tx_hashrnd; ' Signed-off-by: Dave Jones Acked-by: Randy Dunlap Signed-off-by: David S. Miller --- include/linux/netdevice.h | 58 +++++++++++++++++++++++------------------------ net/core/dev.c | 51 ++++++++++++++++++++--------------------- 2 files changed, 54 insertions(+), 55 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f5ea445f89f0..b4d056ceab96 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -996,17 +996,17 @@ static inline void netif_tx_schedule_all(struct net_device *dev) netif_schedule_queue(netdev_get_tx_queue(dev, i)); } +static inline void netif_tx_start_queue(struct netdev_queue *dev_queue) +{ + clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state); +} + /** * netif_start_queue - allow transmit * @dev: network device * * Allow upper layers to call the device hard_start_xmit routine. */ -static inline void netif_tx_start_queue(struct netdev_queue *dev_queue) -{ - clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state); -} - static inline void netif_start_queue(struct net_device *dev) { netif_tx_start_queue(netdev_get_tx_queue(dev, 0)); @@ -1022,13 +1022,6 @@ static inline void netif_tx_start_all_queues(struct net_device *dev) } } -/** - * netif_wake_queue - restart transmit - * @dev: network device - * - * Allow upper layers to call the device hard_start_xmit routine. - * Used for flow control when transmit resources are available. - */ static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue) { #ifdef CONFIG_NETPOLL_TRAP @@ -1041,6 +1034,13 @@ static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue) __netif_schedule(dev_queue->qdisc); } +/** + * netif_wake_queue - restart transmit + * @dev: network device + * + * Allow upper layers to call the device hard_start_xmit routine. + * Used for flow control when transmit resources are available. + */ static inline void netif_wake_queue(struct net_device *dev) { netif_tx_wake_queue(netdev_get_tx_queue(dev, 0)); @@ -1056,6 +1056,11 @@ static inline void netif_tx_wake_all_queues(struct net_device *dev) } } +static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue) +{ + set_bit(__QUEUE_STATE_XOFF, &dev_queue->state); +} + /** * netif_stop_queue - stop transmitted packets * @dev: network device @@ -1063,11 +1068,6 @@ static inline void netif_tx_wake_all_queues(struct net_device *dev) * Stop upper layers calling the device hard_start_xmit routine. * Used for flow control when transmit resources are unavailable. */ -static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue) -{ - set_bit(__QUEUE_STATE_XOFF, &dev_queue->state); -} - static inline void netif_stop_queue(struct net_device *dev) { netif_tx_stop_queue(netdev_get_tx_queue(dev, 0)); @@ -1083,17 +1083,17 @@ static inline void netif_tx_stop_all_queues(struct net_device *dev) } } +static inline int netif_tx_queue_stopped(const struct netdev_queue *dev_queue) +{ + return test_bit(__QUEUE_STATE_XOFF, &dev_queue->state); +} + /** * netif_queue_stopped - test if transmit queue is flowblocked * @dev: network device * * Test if transmit queue on device is currently unable to send. */ -static inline int netif_tx_queue_stopped(const struct netdev_queue *dev_queue) -{ - return test_bit(__QUEUE_STATE_XOFF, &dev_queue->state); -} - static inline int netif_queue_stopped(const struct net_device *dev) { return netif_tx_queue_stopped(netdev_get_tx_queue(dev, 0)); @@ -1463,13 +1463,6 @@ static inline void netif_rx_complete(struct net_device *dev, local_irq_restore(flags); } -/** - * netif_tx_lock - grab network device transmit lock - * @dev: network device - * @cpu: cpu number of lock owner - * - * Get network device transmit lock - */ static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu) { spin_lock(&txq->_xmit_lock); @@ -1482,6 +1475,13 @@ static inline void __netif_tx_lock_bh(struct netdev_queue *txq) txq->xmit_lock_owner = smp_processor_id(); } +/** + * netif_tx_lock - grab network device transmit lock + * @dev: network device + * @cpu: cpu number of lock owner + * + * Get network device transmit lock + */ static inline void netif_tx_lock(struct net_device *dev) { int cpu = smp_processor_id(); diff --git a/net/core/dev.c b/net/core/dev.c index ad5598d2bb37..65eea83613ef 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1645,32 +1645,6 @@ out_kfree_skb: return 0; } -/** - * dev_queue_xmit - transmit a buffer - * @skb: buffer to transmit - * - * Queue a buffer for transmission to a network device. The caller must - * have set the device and priority and built the buffer before calling - * this function. The function can be called from an interrupt. - * - * A negative errno code is returned on a failure. A success does not - * guarantee the frame will be transmitted as it may be dropped due - * to congestion or traffic shaping. - * - * ----------------------------------------------------------------------------------- - * I notice this method can also return errors from the queue disciplines, - * including NET_XMIT_DROP, which is a positive value. So, errors can also - * be positive. - * - * Regardless of the return value, the skb is consumed, so it is currently - * difficult to retry a send to this method. (You can bump the ref count - * before sending to hold a reference for retry if you are careful.) - * - * When calling this method, interrupts MUST be enabled. This is because - * the BH enable code must have IRQs enabled so that it will not deadlock. - * --BLG - */ - static u32 simple_tx_hashrnd; static int simple_tx_hashrnd_initialized = 0; @@ -1738,6 +1712,31 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev, return netdev_get_tx_queue(dev, queue_index); } +/** + * dev_queue_xmit - transmit a buffer + * @skb: buffer to transmit + * + * Queue a buffer for transmission to a network device. The caller must + * have set the device and priority and built the buffer before calling + * this function. The function can be called from an interrupt. + * + * A negative errno code is returned on a failure. A success does not + * guarantee the frame will be transmitted as it may be dropped due + * to congestion or traffic shaping. + * + * ----------------------------------------------------------------------------------- + * I notice this method can also return errors from the queue disciplines, + * including NET_XMIT_DROP, which is a positive value. So, errors can also + * be positive. + * + * Regardless of the return value, the skb is consumed, so it is currently + * difficult to retry a send to this method. (You can bump the ref count + * before sending to hold a reference for retry if you are careful.) + * + * When calling this method, interrupts MUST be enabled. This is because + * the BH enable code must have IRQs enabled so that it will not deadlock. + * --BLG + */ int dev_queue_xmit(struct sk_buff *skb) { struct net_device *dev = skb->dev; -- cgit v1.2.3 From dd5bdff83b19d9174126e0398b47117c3a80e22d Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Tue, 22 Jul 2008 14:14:22 -0700 Subject: RDMA/cma: Add RDMA_CM_EVENT_ADDR_CHANGE event Add an RDMA_CM_EVENT_ADDR_CHANGE event can be used by rdma-cm consumers that wish to have their RDMA sessions always use the same links (eg ) as the IP stack does. In the current code, this does not happen when bonding is used and fail-over happened but the IB link used by an already existing session is operating fine. Use the netevent notification for sensing that a change has happened in the IP stack, then scan the rdma-cm ID list to see if there is an ID that is "misaligned" with respect to the IP stack, and deliver RDMA_CM_EVENT_ADDR_CHANGE for this ID. The consumer can act on the event or just ignore it. Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 92 +++++++++++++++++++++++++++++++++++++++++++ include/rdma/rdma_cm.h | 3 +- 2 files changed, 94 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index ae11d5cc74d0..79792c92e6fb 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -168,6 +168,12 @@ struct cma_work { struct rdma_cm_event event; }; +struct cma_ndev_work { + struct work_struct work; + struct rdma_id_private *id; + struct rdma_cm_event event; +}; + union cma_ip_addr { struct in6_addr ip6; struct { @@ -1598,6 +1604,30 @@ out: kfree(work); } +static void cma_ndev_work_handler(struct work_struct *_work) +{ + struct cma_ndev_work *work = container_of(_work, struct cma_ndev_work, work); + struct rdma_id_private *id_priv = work->id; + int destroy = 0; + + mutex_lock(&id_priv->handler_mutex); + if (id_priv->state == CMA_DESTROYING || + id_priv->state == CMA_DEVICE_REMOVAL) + goto out; + + if (id_priv->id.event_handler(&id_priv->id, &work->event)) { + cma_exch(id_priv, CMA_DESTROYING); + destroy = 1; + } + +out: + mutex_unlock(&id_priv->handler_mutex); + cma_deref_id(id_priv); + if (destroy) + rdma_destroy_id(&id_priv->id); + kfree(work); +} + static int cma_resolve_ib_route(struct rdma_id_private *id_priv, int timeout_ms) { struct rdma_route *route = &id_priv->id.route; @@ -2723,6 +2753,65 @@ void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr) } EXPORT_SYMBOL(rdma_leave_multicast); +static int cma_netdev_change(struct net_device *ndev, struct rdma_id_private *id_priv) +{ + struct rdma_dev_addr *dev_addr; + struct cma_ndev_work *work; + + dev_addr = &id_priv->id.route.addr.dev_addr; + + if ((dev_addr->src_dev == ndev) && + memcmp(dev_addr->src_dev_addr, ndev->dev_addr, ndev->addr_len)) { + printk(KERN_INFO "RDMA CM addr change for ndev %s used by id %p\n", + ndev->name, &id_priv->id); + work = kzalloc(sizeof *work, GFP_KERNEL); + if (!work) + return -ENOMEM; + + INIT_WORK(&work->work, cma_ndev_work_handler); + work->id = id_priv; + work->event.event = RDMA_CM_EVENT_ADDR_CHANGE; + atomic_inc(&id_priv->refcount); + queue_work(cma_wq, &work->work); + } + + return 0; +} + +static int cma_netdev_callback(struct notifier_block *self, unsigned long event, + void *ctx) +{ + struct net_device *ndev = (struct net_device *)ctx; + struct cma_device *cma_dev; + struct rdma_id_private *id_priv; + int ret = NOTIFY_DONE; + + if (dev_net(ndev) != &init_net) + return NOTIFY_DONE; + + if (event != NETDEV_BONDING_FAILOVER) + return NOTIFY_DONE; + + if (!(ndev->flags & IFF_MASTER) || !(ndev->priv_flags & IFF_BONDING)) + return NOTIFY_DONE; + + mutex_lock(&lock); + list_for_each_entry(cma_dev, &dev_list, list) + list_for_each_entry(id_priv, &cma_dev->id_list, list) { + ret = cma_netdev_change(ndev, id_priv); + if (ret) + goto out; + } + +out: + mutex_unlock(&lock); + return ret; +} + +static struct notifier_block cma_nb = { + .notifier_call = cma_netdev_callback +}; + static void cma_add_one(struct ib_device *device) { struct cma_device *cma_dev; @@ -2831,6 +2920,7 @@ static int cma_init(void) ib_sa_register_client(&sa_client); rdma_addr_register_client(&addr_client); + register_netdevice_notifier(&cma_nb); ret = ib_register_client(&cma_client); if (ret) @@ -2838,6 +2928,7 @@ static int cma_init(void) return 0; err: + unregister_netdevice_notifier(&cma_nb); rdma_addr_unregister_client(&addr_client); ib_sa_unregister_client(&sa_client); destroy_workqueue(cma_wq); @@ -2847,6 +2938,7 @@ err: static void cma_cleanup(void) { ib_unregister_client(&cma_client); + unregister_netdevice_notifier(&cma_nb); rdma_addr_unregister_client(&addr_client); ib_sa_unregister_client(&sa_client); destroy_workqueue(cma_wq); diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index 22bb2e7bab1a..001d606517ff 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -57,7 +57,8 @@ enum rdma_cm_event_type { RDMA_CM_EVENT_DISCONNECTED, RDMA_CM_EVENT_DEVICE_REMOVAL, RDMA_CM_EVENT_MULTICAST_JOIN, - RDMA_CM_EVENT_MULTICAST_ERROR + RDMA_CM_EVENT_MULTICAST_ERROR, + RDMA_CM_EVENT_ADDR_CHANGE }; enum rdma_port_space { -- cgit v1.2.3 From 38ca83a588662f0af684ba2567dd910a564268ab Mon Sep 17 00:00:00 2001 From: Amir Vadai Date: Tue, 22 Jul 2008 14:14:23 -0700 Subject: RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT event Consumers that want to re-use their QPs in new connections need to know when the QP has exited the timewait state. Report the timewait event through the rdma_cm. Signed-off-by: Amir Vadai Acked-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 7 ++++++- include/rdma/rdma_cm.h | 3 ++- 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 79792c92e6fb..e980ff3335db 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -920,7 +920,10 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) struct rdma_cm_event event; int ret = 0; - if (cma_disable_callback(id_priv, CMA_CONNECT)) + if ((ib_event->event != IB_CM_TIMEWAIT_EXIT && + cma_disable_callback(id_priv, CMA_CONNECT)) || + (ib_event->event == IB_CM_TIMEWAIT_EXIT && + cma_disable_callback(id_priv, CMA_DISCONNECT))) return 0; memset(&event, 0, sizeof event); @@ -956,6 +959,8 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) event.event = RDMA_CM_EVENT_DISCONNECTED; break; case IB_CM_TIMEWAIT_EXIT: + event.event = RDMA_CM_EVENT_TIMEWAIT_EXIT; + break; case IB_CM_MRA_RECEIVED: /* ignore event */ goto out; diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index 001d606517ff..df7faf09d66f 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -58,7 +58,8 @@ enum rdma_cm_event_type { RDMA_CM_EVENT_DEVICE_REMOVAL, RDMA_CM_EVENT_MULTICAST_JOIN, RDMA_CM_EVENT_MULTICAST_ERROR, - RDMA_CM_EVENT_ADDR_CHANGE + RDMA_CM_EVENT_ADDR_CHANGE, + RDMA_CM_EVENT_TIMEWAIT_EXIT }; enum rdma_port_space { -- cgit v1.2.3 From 8086cd451f08f4c0f9693fc66d87754bbd18cfba Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 22 Jul 2008 14:19:19 -0700 Subject: netns: make get_proc_net() static get_proc_net() can now become static. Signed-off-by: Adrian Bunk Acked-by: Pavel Emelyanov Signed-off-by: David S. Miller --- fs/proc/proc_net.c | 11 +++++------ include/linux/proc_fs.h | 2 -- 2 files changed, 5 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index b224a28e0c15..7bc296f424ae 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -27,6 +27,11 @@ #include "internal.h" +static struct net *get_proc_net(const struct inode *inode) +{ + return maybe_get_net(PDE_NET(PDE(inode))); +} + int seq_open_net(struct inode *ino, struct file *f, const struct seq_operations *ops, int size) { @@ -185,12 +190,6 @@ void proc_net_remove(struct net *net, const char *name) } EXPORT_SYMBOL_GPL(proc_net_remove); -struct net *get_proc_net(const struct inode *inode) -{ - return maybe_get_net(PDE_NET(PDE(inode))); -} -EXPORT_SYMBOL_GPL(get_proc_net); - static __net_init int proc_net_ns_init(struct net *net) { struct proc_dir_entry *netd, *net_statd; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index fff1d27ddb4c..15a9eaf4a802 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -305,8 +305,6 @@ static inline struct net *PDE_NET(struct proc_dir_entry *pde) return pde->parent->data; } -struct net *get_proc_net(const struct inode *inode); - struct proc_maps_private { struct pid *pid; struct task_struct *task; -- cgit v1.2.3 From 47b374752aed1c029f995473c7c463ee3ae5fbaa Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 22 Jul 2008 14:19:39 -0700 Subject: IB/mlx4: Rename struct mlx4_lso_seg to mlx4_wqe_lso_seg Make the struct name consistent with other WQE segment struct types defined in . Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/qp.c | 2 +- include/linux/mlx4/qp.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 89eb6cbe592e..bda0859a5ac5 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1395,7 +1395,7 @@ static void __set_data_seg(struct mlx4_wqe_data_seg *dseg, struct ib_sge *sg) dseg->addr = cpu_to_be64(sg->addr); } -static int build_lso_seg(struct mlx4_lso_seg *wqe, struct ib_send_wr *wr, +static int build_lso_seg(struct mlx4_wqe_lso_seg *wqe, struct ib_send_wr *wr, struct mlx4_ib_qp *qp, unsigned *lso_seg_len) { unsigned halign = ALIGN(sizeof *wqe + wr->wr.ud.hlen, 16); diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h index 7f128b266faa..f02e9ed36cfa 100644 --- a/include/linux/mlx4/qp.h +++ b/include/linux/mlx4/qp.h @@ -219,7 +219,7 @@ struct mlx4_wqe_datagram_seg { __be32 reservd[2]; }; -struct mlx4_lso_seg { +struct mlx4_wqe_lso_seg { __be32 mss_hdr_size; __be32 header[0]; }; -- cgit v1.2.3 From abd0b198ea699578c3c3476d646c91842e19dbd2 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 22 Jul 2008 14:20:45 -0700 Subject: sctp: make sctp_outq_flush() static sctp_outq_flush() can now become static. Signed-off-by: Adrian Bunk Acked-by: Neil Horman Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 1 - net/sctp/outqueue.c | 4 +++- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 70eb64a7e1a1..535a18f57a13 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1161,7 +1161,6 @@ void sctp_outq_init(struct sctp_association *, struct sctp_outq *); void sctp_outq_teardown(struct sctp_outq *); void sctp_outq_free(struct sctp_outq*); int sctp_outq_tail(struct sctp_outq *, struct sctp_chunk *chunk); -int sctp_outq_flush(struct sctp_outq *, int); int sctp_outq_sack(struct sctp_outq *, struct sctp_sackhdr *); int sctp_outq_is_empty(const struct sctp_outq *); void sctp_outq_restart(struct sctp_outq *); diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index 70ead8dc3485..4328ad5439c9 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -71,6 +71,8 @@ static void sctp_mark_missing(struct sctp_outq *q, static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 sack_ctsn); +static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout); + /* Add data to the front of the queue. */ static inline void sctp_outq_head_data(struct sctp_outq *q, struct sctp_chunk *ch) @@ -712,7 +714,7 @@ int sctp_outq_uncork(struct sctp_outq *q) * locking concerns must be made. Today we use the sock lock to protect * this function. */ -int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout) +static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout) { struct sctp_packet *packet; struct sctp_packet singleton; -- cgit v1.2.3 From 888c848ed34bd5f8cb56567624c0d951ab35174e Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 22 Jul 2008 14:21:58 -0700 Subject: ipv6: make struct ipv6_devconf static struct ipv6_devconf can now become static. Signed-off-by: Adrian Bunk Signed-off-by: David S. Miller --- include/net/if_inet6.h | 2 -- net/ipv6/addrconf.c | 2 +- 2 files changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index db66c7927743..c8effa4b1feb 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -193,8 +193,6 @@ struct inet6_dev struct rcu_head rcu; }; -extern struct ipv6_devconf ipv6_devconf; - static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf) { /* diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 9f4fcce6379b..74d543d504a1 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -153,7 +153,7 @@ static int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr, static ATOMIC_NOTIFIER_HEAD(inet6addr_chain); -struct ipv6_devconf ipv6_devconf __read_mostly = { +static struct ipv6_devconf ipv6_devconf __read_mostly = { .forwarding = 0, .hop_limit = IPV6_DEFAULT_HOPLIMIT, .mtu6 = IPV6_MIN_MTU, -- cgit v1.2.3 From e5899e1b7d73e67de758a32174a859cc2586c0b9 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 19 Jul 2008 14:39:24 +0200 Subject: PCI PM: make more PCI PM core functionality available to drivers Make more PCI PM core functionality available to drivers * Export pci_pme_capable() so that it can be called directly by drivers (for example, tg3 needs that). * Move the state choosing part of pci_prepare_to_sleep() to a separate function, pci_target_state(), that can be called directly by drivers (for example, tg3 needs that). Signed-off-by: Rafael J. Wysocki Signed-off-by: Jesse Barnes --- drivers/pci/pci.c | 34 ++++++++++++++++++++++++---------- include/linux/pci.h | 2 ++ 2 files changed, 26 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index d00f0e0d8453..e9c356236d27 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1040,7 +1040,7 @@ int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state) * @dev: PCI device to handle. * @state: PCI state from which device will issue PME#. */ -static bool pci_pme_capable(struct pci_dev *dev, pci_power_t state) +bool pci_pme_capable(struct pci_dev *dev, pci_power_t state) { if (!dev->pm_cap) return false; @@ -1123,17 +1123,10 @@ int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) } /** - * pci_prepare_to_sleep - prepare PCI device for system-wide transition into a sleep state - * @dev: Device to handle. - * - * Choose the power state appropriate for the device depending on whether - * it can wake up the system and/or is power manageable by the platform - * (PCI_D3hot is the default) and put the device into that state. */ -int pci_prepare_to_sleep(struct pci_dev *dev) +pci_power_t pci_target_state(struct pci_dev *dev) { pci_power_t target_state = PCI_D3hot; - int error; if (platform_pci_power_manageable(dev)) { /* @@ -1160,7 +1153,7 @@ int pci_prepare_to_sleep(struct pci_dev *dev) * to generate PME#. */ if (!dev->pm_cap) - return -EIO; + return PCI_POWER_ERROR; if (dev->pme_support) { while (target_state @@ -1169,6 +1162,25 @@ int pci_prepare_to_sleep(struct pci_dev *dev) } } + return target_state; +} + +/** + * pci_prepare_to_sleep - prepare PCI device for system-wide transition into a sleep state + * @dev: Device to handle. + * + * Choose the power state appropriate for the device depending on whether + * it can wake up the system and/or is power manageable by the platform + * (PCI_D3hot is the default) and put the device into that state. + */ +int pci_prepare_to_sleep(struct pci_dev *dev) +{ + pci_power_t target_state = pci_target_state(dev); + int error; + + if (target_state == PCI_POWER_ERROR) + return -EIO; + pci_enable_wake(dev, target_state, true); error = pci_set_power_state(dev, target_state); @@ -1918,7 +1930,9 @@ EXPORT_SYMBOL(pci_select_bars); EXPORT_SYMBOL(pci_set_power_state); EXPORT_SYMBOL(pci_save_state); EXPORT_SYMBOL(pci_restore_state); +EXPORT_SYMBOL(pci_pme_capable); EXPORT_SYMBOL(pci_enable_wake); +EXPORT_SYMBOL(pci_target_state); EXPORT_SYMBOL(pci_prepare_to_sleep); EXPORT_SYMBOL(pci_back_from_sleep); EXPORT_SYMBOL_GPL(pci_set_pcie_reset_state); diff --git a/include/linux/pci.h b/include/linux/pci.h index a6a088e1a804..1d296d31abe0 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -638,7 +638,9 @@ int pci_save_state(struct pci_dev *dev); int pci_restore_state(struct pci_dev *dev); int pci_set_power_state(struct pci_dev *dev, pci_power_t state); pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state); +bool pci_pme_capable(struct pci_dev *dev, pci_power_t state); int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable); +pci_power_t pci_target_state(struct pci_dev *dev); int pci_prepare_to_sleep(struct pci_dev *dev); int pci_back_from_sleep(struct pci_dev *dev); -- cgit v1.2.3 From 428695b89831d781ba203d97ee07da68150ea40d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 22 Jul 2008 14:30:55 -0700 Subject: sparc: Fixes the DRM layer build on sparc. By providing an ioremap_wc(). Signed-off-by: David S. Miller --- include/asm-sparc/io_32.h | 1 + include/asm-sparc/io_64.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-sparc/io_32.h b/include/asm-sparc/io_32.h index c43af722ae8c..10d7da450070 100644 --- a/include/asm-sparc/io_32.h +++ b/include/asm-sparc/io_32.h @@ -244,6 +244,7 @@ _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n) */ extern void __iomem *ioremap(unsigned long offset, unsigned long size); #define ioremap_nocache(X,Y) ioremap((X),(Y)) +#define ioremap_wc(X,Y) ioremap((X),(Y)) extern void iounmap(volatile void __iomem *addr); #define ioread8(X) readb(X) diff --git a/include/asm-sparc/io_64.h b/include/asm-sparc/io_64.h index 11daa31cdaf9..0bff078ffdd0 100644 --- a/include/asm-sparc/io_64.h +++ b/include/asm-sparc/io_64.h @@ -460,6 +460,7 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size) } #define ioremap_nocache(X,Y) ioremap((X),(Y)) +#define ioremap_wc(X,Y) ioremap((X),(Y)) static inline void iounmap(volatile void __iomem *addr) { -- cgit v1.2.3 From 417f28bb340725544c36b35465444d2fd57232b8 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 22 Jul 2008 14:33:45 -0700 Subject: netns: dont alloc ipv6 fib timer list FIB timer list is a trivial size structure, avoid indirection and just put it in existing ns. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/net/netns/ipv6.h | 2 +- net/ipv6/ip6_fib.c | 40 +++++++++++++--------------------------- 2 files changed, 14 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index 5bacd838e88b..2932721180c0 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -39,7 +39,7 @@ struct netns_ipv6 { #endif struct rt6_info *ip6_null_entry; struct rt6_statistics *rt6_stats; - struct timer_list *ip6_fib_timer; + struct timer_list ip6_fib_timer; struct hlist_head *fib_table_hash; struct fib6_table *fib6_main_tbl; struct dst_ops *ip6_dst_ops; diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 944095cf5e32..e0922975c410 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -661,16 +661,16 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, static __inline__ void fib6_start_gc(struct net *net, struct rt6_info *rt) { - if (!timer_pending(net->ipv6.ip6_fib_timer) && + if (!timer_pending(&net->ipv6.ip6_fib_timer) && (rt->rt6i_flags & (RTF_EXPIRES|RTF_CACHE))) - mod_timer(net->ipv6.ip6_fib_timer, + mod_timer(&net->ipv6.ip6_fib_timer, jiffies + net->ipv6.sysctl.ip6_rt_gc_interval); } void fib6_force_start_gc(struct net *net) { - if (!timer_pending(net->ipv6.ip6_fib_timer)) - mod_timer(net->ipv6.ip6_fib_timer, + if (!timer_pending(&net->ipv6.ip6_fib_timer)) + mod_timer(&net->ipv6.ip6_fib_timer, jiffies + net->ipv6.sysctl.ip6_rt_gc_interval); } @@ -1449,7 +1449,7 @@ void fib6_run_gc(unsigned long expires, struct net *net) } else { local_bh_disable(); if (!spin_trylock(&fib6_gc_lock)) { - mod_timer(net->ipv6.ip6_fib_timer, jiffies + HZ); + mod_timer(&net->ipv6.ip6_fib_timer, jiffies + HZ); local_bh_enable(); return; } @@ -1462,12 +1462,10 @@ void fib6_run_gc(unsigned long expires, struct net *net) fib6_clean_all(net, fib6_age, 0, NULL); if (gc_args.more) - mod_timer(net->ipv6.ip6_fib_timer, jiffies + + mod_timer(&net->ipv6.ip6_fib_timer, jiffies + net->ipv6.sysctl.ip6_rt_gc_interval); - else { - del_timer(net->ipv6.ip6_fib_timer); - net->ipv6.ip6_fib_timer->expires = 0; - } + else + del_timer(&net->ipv6.ip6_fib_timer); spin_unlock_bh(&fib6_gc_lock); } @@ -1478,16 +1476,7 @@ static void fib6_gc_timer_cb(unsigned long arg) static int fib6_net_init(struct net *net) { - int ret; - struct timer_list *timer; - - ret = -ENOMEM; - timer = kzalloc(sizeof(*timer), GFP_KERNEL); - if (!timer) - goto out; - - setup_timer(timer, fib6_gc_timer_cb, (unsigned long)net); - net->ipv6.ip6_fib_timer = timer; + setup_timer(&net->ipv6.ip6_fib_timer, fib6_gc_timer_cb, (unsigned long)net); net->ipv6.rt6_stats = kzalloc(sizeof(*net->ipv6.rt6_stats), GFP_KERNEL); if (!net->ipv6.rt6_stats) @@ -1521,9 +1510,7 @@ static int fib6_net_init(struct net *net) #endif fib6_tables_init(net); - ret = 0; -out: - return ret; + return 0; #ifdef CONFIG_IPV6_MULTIPLE_TABLES out_fib6_main_tbl: @@ -1534,15 +1521,14 @@ out_fib_table_hash: out_rt6_stats: kfree(net->ipv6.rt6_stats); out_timer: - kfree(timer); - goto out; + return -ENOMEM; } static void fib6_net_exit(struct net *net) { rt6_ifdown(net, NULL); - del_timer_sync(net->ipv6.ip6_fib_timer); - kfree(net->ipv6.ip6_fib_timer); + del_timer_sync(&net->ipv6.ip6_fib_timer); + #ifdef CONFIG_IPV6_MULTIPLE_TABLES kfree(net->ipv6.fib6_local_tbl); #endif -- cgit v1.2.3 From 3d0f24a74e7957593a5622eb5c04ed6860dd8391 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 22 Jul 2008 14:35:50 -0700 Subject: ipv6: icmp6_dst_gc return change Change icmp6_dst_gc to return the one value the caller cares about rather than using call by reference. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/net/ip6_route.h | 2 +- net/ipv6/ip6_fib.c | 3 +-- net/ipv6/route.c | 10 ++++------ 3 files changed, 6 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 9313491e3dad..2f8b3c06a101 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -68,7 +68,7 @@ extern struct rt6_info *rt6_lookup(struct net *net, extern struct dst_entry *icmp6_dst_alloc(struct net_device *dev, struct neighbour *neigh, const struct in6_addr *addr); -extern int icmp6_dst_gc(int *more); +extern int icmp6_dst_gc(void); extern void fib6_force_start_gc(struct net *net); diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index c72fd2461ca5..08ea2de28d63 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1453,9 +1453,8 @@ void fib6_run_gc(unsigned long expires, struct net *net) } gc_args.timeout = net->ipv6.sysctl.ip6_rt_gc_interval; } - gc_args.more = 0; - icmp6_dst_gc(&gc_args.more); + gc_args.more = icmp6_dst_gc(); fib6_clean_all(net, fib6_age, 0, NULL); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 615b328de251..86540b24b27c 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -978,13 +978,12 @@ out: return &rt->u.dst; } -int icmp6_dst_gc(int *more) +int icmp6_dst_gc(void) { struct dst_entry *dst, *next, **pprev; - int freed; + int more = 0; next = NULL; - freed = 0; spin_lock_bh(&icmp6_dst_lock); pprev = &icmp6_dst_gc_list; @@ -993,16 +992,15 @@ int icmp6_dst_gc(int *more) if (!atomic_read(&dst->__refcnt)) { *pprev = dst->next; dst_free(dst); - freed++; } else { pprev = &dst->next; - (*more)++; + ++more; } } spin_unlock_bh(&icmp6_dst_lock); - return freed; + return more; } static int ip6_dst_gc(struct dst_ops *ops) -- cgit v1.2.3 From 7f1b358a236ee9c19657a619ac6f2dcabcaa0924 Mon Sep 17 00:00:00 2001 From: Maciej Sosnowski Date: Tue, 22 Jul 2008 17:30:57 -0700 Subject: I/OAT: I/OAT version 3.0 support This patch adds to ioatdma and dca modules support for Intel I/OAT DMA engine ver.3 (aka CB3 device). The main features of I/OAT ver.3 are: * 8 single channel DMA devices (8 channels total) * 8 DCA providers, each can accept 2 requesters * 8-bit TAG values and 32-bit extended APIC IDs Signed-off-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dca/dca-core.c | 131 ++++++++++++++++----- drivers/dca/dca-sysfs.c | 3 +- drivers/dma/ioat.c | 15 +++ drivers/dma/ioat_dca.c | 244 ++++++++++++++++++++++++++++++++++++++-- drivers/dma/ioat_dma.c | 96 ++++++++++++++-- drivers/dma/ioatdma.h | 5 +- drivers/dma/ioatdma_hw.h | 1 + drivers/dma/ioatdma_registers.h | 20 ++++ include/linux/dca.h | 7 +- include/linux/pci_ids.h | 8 ++ 10 files changed, 481 insertions(+), 49 deletions(-) (limited to 'include') diff --git a/drivers/dca/dca-core.c b/drivers/dca/dca-core.c index bf5b92f86df7..ec249d2db633 100644 --- a/drivers/dca/dca-core.c +++ b/drivers/dca/dca-core.c @@ -28,13 +28,29 @@ #include #include -MODULE_LICENSE("GPL"); +#define DCA_VERSION "1.4" -/* For now we're assuming a single, global, DCA provider for the system. */ +MODULE_VERSION(DCA_VERSION); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Intel Corporation"); static DEFINE_SPINLOCK(dca_lock); -static struct dca_provider *global_dca = NULL; +static LIST_HEAD(dca_providers); + +static struct dca_provider *dca_find_provider_by_dev(struct device *dev) +{ + struct dca_provider *dca, *ret = NULL; + + list_for_each_entry(dca, &dca_providers, node) { + if ((!dev) || (dca->ops->dev_managed(dca, dev))) { + ret = dca; + break; + } + } + + return ret; +} /** * dca_add_requester - add a dca client to the list @@ -42,25 +58,39 @@ static struct dca_provider *global_dca = NULL; */ int dca_add_requester(struct device *dev) { - int err, slot; + struct dca_provider *dca; + int err, slot = -ENODEV; - if (!global_dca) - return -ENODEV; + if (!dev) + return -EFAULT; spin_lock(&dca_lock); - slot = global_dca->ops->add_requester(global_dca, dev); - spin_unlock(&dca_lock); - if (slot < 0) + + /* check if the requester has not been added already */ + dca = dca_find_provider_by_dev(dev); + if (dca) { + spin_unlock(&dca_lock); + return -EEXIST; + } + + list_for_each_entry(dca, &dca_providers, node) { + slot = dca->ops->add_requester(dca, dev); + if (slot >= 0) + break; + } + if (slot < 0) { + spin_unlock(&dca_lock); return slot; + } - err = dca_sysfs_add_req(global_dca, dev, slot); + err = dca_sysfs_add_req(dca, dev, slot); if (err) { - spin_lock(&dca_lock); - global_dca->ops->remove_requester(global_dca, dev); + dca->ops->remove_requester(dca, dev); spin_unlock(&dca_lock); return err; } + spin_unlock(&dca_lock); return 0; } EXPORT_SYMBOL_GPL(dca_add_requester); @@ -71,30 +101,78 @@ EXPORT_SYMBOL_GPL(dca_add_requester); */ int dca_remove_requester(struct device *dev) { + struct dca_provider *dca; int slot; - if (!global_dca) - return -ENODEV; + + if (!dev) + return -EFAULT; spin_lock(&dca_lock); - slot = global_dca->ops->remove_requester(global_dca, dev); - spin_unlock(&dca_lock); - if (slot < 0) + dca = dca_find_provider_by_dev(dev); + if (!dca) { + spin_unlock(&dca_lock); + return -ENODEV; + } + slot = dca->ops->remove_requester(dca, dev); + if (slot < 0) { + spin_unlock(&dca_lock); return slot; + } - dca_sysfs_remove_req(global_dca, slot); + dca_sysfs_remove_req(dca, slot); + + spin_unlock(&dca_lock); return 0; } EXPORT_SYMBOL_GPL(dca_remove_requester); /** - * dca_get_tag - return the dca tag for the given cpu + * dca_common_get_tag - return the dca tag (serves both new and old api) + * @dev - the device that wants dca service * @cpu - the cpuid as returned by get_cpu() */ -u8 dca_get_tag(int cpu) +u8 dca_common_get_tag(struct device *dev, int cpu) { - if (!global_dca) + struct dca_provider *dca; + u8 tag; + + spin_lock(&dca_lock); + + dca = dca_find_provider_by_dev(dev); + if (!dca) { + spin_unlock(&dca_lock); return -ENODEV; - return global_dca->ops->get_tag(global_dca, cpu); + } + tag = dca->ops->get_tag(dca, dev, cpu); + + spin_unlock(&dca_lock); + return tag; +} + +/** + * dca3_get_tag - return the dca tag to the requester device + * for the given cpu (new api) + * @dev - the device that wants dca service + * @cpu - the cpuid as returned by get_cpu() + */ +u8 dca3_get_tag(struct device *dev, int cpu) +{ + if (!dev) + return -EFAULT; + + return dca_common_get_tag(dev, cpu); +} +EXPORT_SYMBOL_GPL(dca3_get_tag); + +/** + * dca_get_tag - return the dca tag for the given cpu (old api) + * @cpu - the cpuid as returned by get_cpu() + */ +u8 dca_get_tag(int cpu) +{ + struct device *dev = NULL; + + return dca_common_get_tag(dev, cpu); } EXPORT_SYMBOL_GPL(dca_get_tag); @@ -140,12 +218,10 @@ int register_dca_provider(struct dca_provider *dca, struct device *dev) { int err; - if (global_dca) - return -EEXIST; err = dca_sysfs_add_provider(dca, dev); if (err) return err; - global_dca = dca; + list_add(&dca->node, &dca_providers); blocking_notifier_call_chain(&dca_provider_chain, DCA_PROVIDER_ADD, NULL); return 0; @@ -158,11 +234,9 @@ EXPORT_SYMBOL_GPL(register_dca_provider); */ void unregister_dca_provider(struct dca_provider *dca) { - if (!global_dca) - return; blocking_notifier_call_chain(&dca_provider_chain, DCA_PROVIDER_REMOVE, NULL); - global_dca = NULL; + list_del(&dca->node); dca_sysfs_remove_provider(dca); } EXPORT_SYMBOL_GPL(unregister_dca_provider); @@ -187,6 +261,7 @@ EXPORT_SYMBOL_GPL(dca_unregister_notify); static int __init dca_init(void) { + printk(KERN_ERR "dca service started, version %s\n", DCA_VERSION); return dca_sysfs_init(); } diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c index 011328faa5f2..3d47e9d8e34f 100644 --- a/drivers/dca/dca-sysfs.c +++ b/drivers/dca/dca-sysfs.c @@ -13,9 +13,10 @@ static spinlock_t dca_idr_lock; int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot) { struct device *cd; + static int req_count; cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), - "requester%d", slot); + "requester%d", req_count++); if (IS_ERR(cd)) return PTR_ERR(cd); return 0; diff --git a/drivers/dma/ioat.c b/drivers/dma/ioat.c index 16e0fd8facfb..9b16a3af9a0a 100644 --- a/drivers/dma/ioat.c +++ b/drivers/dma/ioat.c @@ -47,6 +47,16 @@ static struct pci_device_id ioat_pci_tbl[] = { /* I/OAT v2 platforms */ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_SNB) }, + + /* I/OAT v3 platforms */ + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG0) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG1) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG2) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG3) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG4) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG5) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG6) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG7) }, { 0, } }; @@ -83,6 +93,11 @@ static int ioat_setup_functionality(struct pci_dev *pdev, void __iomem *iobase) if (device->dma && ioat_dca_enabled) device->dca = ioat2_dca_init(pdev, iobase); break; + case IOAT_VER_3_0: + device->dma = ioat_dma_probe(pdev, iobase); + if (device->dma && ioat_dca_enabled) + device->dca = ioat3_dca_init(pdev, iobase); + break; default: err = -ENODEV; break; diff --git a/drivers/dma/ioat_dca.c b/drivers/dma/ioat_dca.c index 9e922760b7ff..6cf622da0286 100644 --- a/drivers/dma/ioat_dca.c +++ b/drivers/dma/ioat_dca.c @@ -37,12 +37,18 @@ #include "ioatdma_registers.h" /* - * Bit 16 of a tag map entry is the "valid" bit, if it is set then bits 0:15 + * Bit 7 of a tag map entry is the "valid" bit, if it is set then bits 0:6 * contain the bit number of the APIC ID to map into the DCA tag. If the valid * bit is not set, then the value must be 0 or 1 and defines the bit in the tag. */ #define DCA_TAG_MAP_VALID 0x80 +#define DCA3_TAG_MAP_BIT_TO_INV 0x80 +#define DCA3_TAG_MAP_BIT_TO_SEL 0x40 +#define DCA3_TAG_MAP_LITERAL_VAL 0x1 + +#define DCA_TAG_MAP_MASK 0xDF + /* * "Legacy" DCA systems do not implement the DCA register set in the * I/OAT device. Software needs direct support for their tag mappings. @@ -95,6 +101,7 @@ struct ioat_dca_slot { }; #define IOAT_DCA_MAX_REQ 6 +#define IOAT3_DCA_MAX_REQ 2 struct ioat_dca_priv { void __iomem *iobase; @@ -171,7 +178,9 @@ static int ioat_dca_remove_requester(struct dca_provider *dca, return -ENODEV; } -static u8 ioat_dca_get_tag(struct dca_provider *dca, int cpu) +static u8 ioat_dca_get_tag(struct dca_provider *dca, + struct device *dev, + int cpu) { struct ioat_dca_priv *ioatdca = dca_priv(dca); int i, apic_id, bit, value; @@ -193,10 +202,26 @@ static u8 ioat_dca_get_tag(struct dca_provider *dca, int cpu) return tag; } +static int ioat_dca_dev_managed(struct dca_provider *dca, + struct device *dev) +{ + struct ioat_dca_priv *ioatdca = dca_priv(dca); + struct pci_dev *pdev; + int i; + + pdev = to_pci_dev(dev); + for (i = 0; i < ioatdca->max_requesters; i++) { + if (ioatdca->req_slots[i].pdev == pdev) + return 1; + } + return 0; +} + static struct dca_ops ioat_dca_ops = { .add_requester = ioat_dca_add_requester, .remove_requester = ioat_dca_remove_requester, .get_tag = ioat_dca_get_tag, + .dev_managed = ioat_dca_dev_managed, }; @@ -207,6 +232,8 @@ struct dca_provider *ioat_dca_init(struct pci_dev *pdev, void __iomem *iobase) u8 *tag_map = NULL; int i; int err; + u8 version; + u8 max_requesters; if (!system_has_dca_enabled(pdev)) return NULL; @@ -237,15 +264,20 @@ struct dca_provider *ioat_dca_init(struct pci_dev *pdev, void __iomem *iobase) if (tag_map == NULL) return NULL; + version = readb(iobase + IOAT_VER_OFFSET); + if (version == IOAT_VER_3_0) + max_requesters = IOAT3_DCA_MAX_REQ; + else + max_requesters = IOAT_DCA_MAX_REQ; + dca = alloc_dca_provider(&ioat_dca_ops, sizeof(*ioatdca) + - (sizeof(struct ioat_dca_slot) * IOAT_DCA_MAX_REQ)); + (sizeof(struct ioat_dca_slot) * max_requesters)); if (!dca) return NULL; ioatdca = dca_priv(dca); - ioatdca->max_requesters = IOAT_DCA_MAX_REQ; - + ioatdca->max_requesters = max_requesters; ioatdca->dca_base = iobase + 0x54; /* copy over the APIC ID to DCA tag mapping */ @@ -323,11 +355,13 @@ static int ioat2_dca_remove_requester(struct dca_provider *dca, return -ENODEV; } -static u8 ioat2_dca_get_tag(struct dca_provider *dca, int cpu) +static u8 ioat2_dca_get_tag(struct dca_provider *dca, + struct device *dev, + int cpu) { u8 tag; - tag = ioat_dca_get_tag(dca, cpu); + tag = ioat_dca_get_tag(dca, dev, cpu); tag = (~tag) & 0x1F; return tag; } @@ -336,6 +370,7 @@ static struct dca_ops ioat2_dca_ops = { .add_requester = ioat2_dca_add_requester, .remove_requester = ioat2_dca_remove_requester, .get_tag = ioat2_dca_get_tag, + .dev_managed = ioat_dca_dev_managed, }; static int ioat2_dca_count_dca_slots(void __iomem *iobase, u16 dca_offset) @@ -425,3 +460,198 @@ struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase) return dca; } + +static int ioat3_dca_add_requester(struct dca_provider *dca, struct device *dev) +{ + struct ioat_dca_priv *ioatdca = dca_priv(dca); + struct pci_dev *pdev; + int i; + u16 id; + u16 global_req_table; + + /* This implementation only supports PCI-Express */ + if (dev->bus != &pci_bus_type) + return -ENODEV; + pdev = to_pci_dev(dev); + id = dcaid_from_pcidev(pdev); + + if (ioatdca->requester_count == ioatdca->max_requesters) + return -ENODEV; + + for (i = 0; i < ioatdca->max_requesters; i++) { + if (ioatdca->req_slots[i].pdev == NULL) { + /* found an empty slot */ + ioatdca->requester_count++; + ioatdca->req_slots[i].pdev = pdev; + ioatdca->req_slots[i].rid = id; + global_req_table = + readw(ioatdca->dca_base + IOAT3_DCA_GREQID_OFFSET); + writel(id | IOAT_DCA_GREQID_VALID, + ioatdca->iobase + global_req_table + (i * 4)); + return i; + } + } + /* Error, ioatdma->requester_count is out of whack */ + return -EFAULT; +} + +static int ioat3_dca_remove_requester(struct dca_provider *dca, + struct device *dev) +{ + struct ioat_dca_priv *ioatdca = dca_priv(dca); + struct pci_dev *pdev; + int i; + u16 global_req_table; + + /* This implementation only supports PCI-Express */ + if (dev->bus != &pci_bus_type) + return -ENODEV; + pdev = to_pci_dev(dev); + + for (i = 0; i < ioatdca->max_requesters; i++) { + if (ioatdca->req_slots[i].pdev == pdev) { + global_req_table = + readw(ioatdca->dca_base + IOAT3_DCA_GREQID_OFFSET); + writel(0, ioatdca->iobase + global_req_table + (i * 4)); + ioatdca->req_slots[i].pdev = NULL; + ioatdca->req_slots[i].rid = 0; + ioatdca->requester_count--; + return i; + } + } + return -ENODEV; +} + +static u8 ioat3_dca_get_tag(struct dca_provider *dca, + struct device *dev, + int cpu) +{ + u8 tag; + + struct ioat_dca_priv *ioatdca = dca_priv(dca); + int i, apic_id, bit, value; + u8 entry; + + tag = 0; + apic_id = cpu_physical_id(cpu); + + for (i = 0; i < IOAT_TAG_MAP_LEN; i++) { + entry = ioatdca->tag_map[i]; + if (entry & DCA3_TAG_MAP_BIT_TO_SEL) { + bit = entry & + ~(DCA3_TAG_MAP_BIT_TO_SEL | DCA3_TAG_MAP_BIT_TO_INV); + value = (apic_id & (1 << bit)) ? 1 : 0; + } else if (entry & DCA3_TAG_MAP_BIT_TO_INV) { + bit = entry & ~DCA3_TAG_MAP_BIT_TO_INV; + value = (apic_id & (1 << bit)) ? 0 : 1; + } else { + value = (entry & DCA3_TAG_MAP_LITERAL_VAL) ? 1 : 0; + } + tag |= (value << i); + } + + return tag; +} + +static struct dca_ops ioat3_dca_ops = { + .add_requester = ioat3_dca_add_requester, + .remove_requester = ioat3_dca_remove_requester, + .get_tag = ioat3_dca_get_tag, + .dev_managed = ioat_dca_dev_managed, +}; + +static int ioat3_dca_count_dca_slots(void *iobase, u16 dca_offset) +{ + int slots = 0; + u32 req; + u16 global_req_table; + + global_req_table = readw(iobase + dca_offset + IOAT3_DCA_GREQID_OFFSET); + if (global_req_table == 0) + return 0; + + do { + req = readl(iobase + global_req_table + (slots * sizeof(u32))); + slots++; + } while ((req & IOAT_DCA_GREQID_LASTID) == 0); + + return slots; +} + +struct dca_provider *ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase) +{ + struct dca_provider *dca; + struct ioat_dca_priv *ioatdca; + int slots; + int i; + int err; + u16 dca_offset; + u16 csi_fsb_control; + u16 pcie_control; + u8 bit; + + union { + u64 full; + struct { + u32 low; + u32 high; + }; + } tag_map; + + if (!system_has_dca_enabled(pdev)) + return NULL; + + dca_offset = readw(iobase + IOAT_DCAOFFSET_OFFSET); + if (dca_offset == 0) + return NULL; + + slots = ioat3_dca_count_dca_slots(iobase, dca_offset); + if (slots == 0) + return NULL; + + dca = alloc_dca_provider(&ioat3_dca_ops, + sizeof(*ioatdca) + + (sizeof(struct ioat_dca_slot) * slots)); + if (!dca) + return NULL; + + ioatdca = dca_priv(dca); + ioatdca->iobase = iobase; + ioatdca->dca_base = iobase + dca_offset; + ioatdca->max_requesters = slots; + + /* some bios might not know to turn these on */ + csi_fsb_control = readw(ioatdca->dca_base + IOAT3_CSI_CONTROL_OFFSET); + if ((csi_fsb_control & IOAT3_CSI_CONTROL_PREFETCH) == 0) { + csi_fsb_control |= IOAT3_CSI_CONTROL_PREFETCH; + writew(csi_fsb_control, + ioatdca->dca_base + IOAT3_CSI_CONTROL_OFFSET); + } + pcie_control = readw(ioatdca->dca_base + IOAT3_PCI_CONTROL_OFFSET); + if ((pcie_control & IOAT3_PCI_CONTROL_MEMWR) == 0) { + pcie_control |= IOAT3_PCI_CONTROL_MEMWR; + writew(pcie_control, + ioatdca->dca_base + IOAT3_PCI_CONTROL_OFFSET); + } + + + /* TODO version, compatibility and configuration checks */ + + /* copy out the APIC to DCA tag map */ + tag_map.low = + readl(ioatdca->dca_base + IOAT3_APICID_TAG_MAP_OFFSET_LOW); + tag_map.high = + readl(ioatdca->dca_base + IOAT3_APICID_TAG_MAP_OFFSET_HIGH); + for (i = 0; i < 8; i++) { + bit = tag_map.full >> (8 * i); + ioatdca->tag_map[i] = bit & DCA_TAG_MAP_MASK; + } + + err = register_dca_provider(dca, &pdev->dev); + if (err) { + free_dca_provider(dca); + return NULL; + } + + return dca; +} diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index ece5a0e3a335..a52156e56886 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -53,6 +53,12 @@ MODULE_PARM_DESC(ioat_pending_level, static void ioat_dma_chan_reset_part2(struct work_struct *work); static void ioat_dma_chan_watchdog(struct work_struct *work); +/* + * workaround for IOAT ver.3.0 null descriptor issue + * (channel returns error when size is 0) + */ +#define NULL_DESC_BUFFER_SIZE 1 + /* internal functions */ static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan); static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan); @@ -129,6 +135,38 @@ static int ioat_dma_enumerate_channels(struct ioatdma_device *device) int i; struct ioat_dma_chan *ioat_chan; + /* + * IOAT ver.3 workarounds + */ + if (device->version == IOAT_VER_3_0) { + u32 chan_err_mask; + u16 dev_id; + u32 dmauncerrsts; + + /* + * Write CHANERRMSK_INT with 3E07h to mask out the errors + * that can cause stability issues for IOAT ver.3 + */ + chan_err_mask = 0x3E07; + pci_write_config_dword(device->pdev, + IOAT_PCI_CHANERRMASK_INT_OFFSET, + chan_err_mask); + + /* + * Clear DMAUNCERRSTS Cfg-Reg Parity Error status bit + * (workaround for spurious config parity error after restart) + */ + pci_read_config_word(device->pdev, + IOAT_PCI_DEVICE_ID_OFFSET, + &dev_id); + if (dev_id == PCI_DEVICE_ID_INTEL_IOAT_TBG0) { + dmauncerrsts = 0x10; + pci_write_config_dword(device->pdev, + IOAT_PCI_DMAUNCERRSTS_OFFSET, + dmauncerrsts); + } + } + device->common.chancnt = readb(device->reg_base + IOAT_CHANCNT_OFFSET); xfercap_scale = readb(device->reg_base + IOAT_XFERCAP_OFFSET); xfercap = (xfercap_scale == 0 ? -1 : (1UL << xfercap_scale)); @@ -473,6 +511,13 @@ static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx) prev = new; } while (len && (new = ioat1_dma_get_next_descriptor(ioat_chan))); + if (!new) { + dev_err(&ioat_chan->device->pdev->dev, + "tx submit failed\n"); + spin_unlock_bh(&ioat_chan->desc_lock); + return -ENOMEM; + } + hw->ctl = IOAT_DMA_DESCRIPTOR_CTL_CP_STS; if (new->async_tx.callback) { hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_INT_GN; @@ -558,7 +603,14 @@ static dma_cookie_t ioat2_tx_submit(struct dma_async_tx_descriptor *tx) desc_count++; } while (len && (new = ioat2_dma_get_next_descriptor(ioat_chan))); - hw->ctl = IOAT_DMA_DESCRIPTOR_CTL_CP_STS; + if (!new) { + dev_err(&ioat_chan->device->pdev->dev, + "tx submit failed\n"); + spin_unlock_bh(&ioat_chan->desc_lock); + return -ENOMEM; + } + + hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_CP_STS; if (new->async_tx.callback) { hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_INT_GN; if (first != new) { @@ -629,6 +681,7 @@ static struct ioat_desc_sw *ioat_dma_alloc_descriptor( desc_sw->async_tx.tx_submit = ioat1_tx_submit; break; case IOAT_VER_2_0: + case IOAT_VER_3_0: desc_sw->async_tx.tx_submit = ioat2_tx_submit; break; } @@ -779,6 +832,7 @@ static void ioat_dma_free_chan_resources(struct dma_chan *chan) } break; case IOAT_VER_2_0: + case IOAT_VER_3_0: list_for_each_entry_safe(desc, _desc, ioat_chan->free_desc.next, node) { list_del(&desc->node); @@ -868,7 +922,8 @@ ioat2_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan) /* set up the noop descriptor */ noop_desc = to_ioat_desc(ioat_chan->used_desc.next); - noop_desc->hw->size = 0; + /* set size to non-zero value (channel returns error when size is 0) */ + noop_desc->hw->size = NULL_DESC_BUFFER_SIZE; noop_desc->hw->ctl = IOAT_DMA_DESCRIPTOR_NUL; noop_desc->hw->src_addr = 0; noop_desc->hw->dst_addr = 0; @@ -918,6 +973,7 @@ static struct ioat_desc_sw *ioat_dma_get_next_descriptor( return ioat1_dma_get_next_descriptor(ioat_chan); break; case IOAT_VER_2_0: + case IOAT_VER_3_0: return ioat2_dma_get_next_descriptor(ioat_chan); break; } @@ -1061,10 +1117,12 @@ static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan) * perhaps we're stuck so hard that the watchdog can't go off? * try to catch it after 2 seconds */ - if (time_after(jiffies, - ioat_chan->last_completion_time + HZ*WATCHDOG_DELAY)) { - ioat_dma_chan_watchdog(&(ioat_chan->device->work.work)); - ioat_chan->last_completion_time = jiffies; + if (ioat_chan->device->version != IOAT_VER_3_0) { + if (time_after(jiffies, + ioat_chan->last_completion_time + HZ*WATCHDOG_DELAY)) { + ioat_dma_chan_watchdog(&(ioat_chan->device->work.work)); + ioat_chan->last_completion_time = jiffies; + } } return; } @@ -1120,6 +1178,7 @@ static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan) } break; case IOAT_VER_2_0: + case IOAT_VER_3_0: /* has some other thread has already cleaned up? */ if (ioat_chan->used_desc.prev == NULL) break; @@ -1223,10 +1282,19 @@ static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan) spin_lock_bh(&ioat_chan->desc_lock); desc = ioat_dma_get_next_descriptor(ioat_chan); + + if (!desc) { + dev_err(&ioat_chan->device->pdev->dev, + "Unable to start null desc - get next desc failed\n"); + spin_unlock_bh(&ioat_chan->desc_lock); + return; + } + desc->hw->ctl = IOAT_DMA_DESCRIPTOR_NUL | IOAT_DMA_DESCRIPTOR_CTL_INT_GN | IOAT_DMA_DESCRIPTOR_CTL_CP_STS; - desc->hw->size = 0; + /* set size to non-zero value (channel returns error when size is 0) */ + desc->hw->size = NULL_DESC_BUFFER_SIZE; desc->hw->src_addr = 0; desc->hw->dst_addr = 0; async_tx_ack(&desc->async_tx); @@ -1244,6 +1312,7 @@ static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan) + IOAT_CHANCMD_OFFSET(ioat_chan->device->version)); break; case IOAT_VER_2_0: + case IOAT_VER_3_0: writel(((u64) desc->async_tx.phys) & 0x00000000FFFFFFFF, ioat_chan->reg_base + IOAT2_CHAINADDR_OFFSET_LOW); writel(((u64) desc->async_tx.phys) >> 32, @@ -1562,6 +1631,7 @@ struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev, ioat1_dma_memcpy_issue_pending; break; case IOAT_VER_2_0: + case IOAT_VER_3_0: device->common.device_prep_dma_memcpy = ioat2_dma_prep_memcpy; device->common.device_issue_pending = ioat2_dma_memcpy_issue_pending; @@ -1585,9 +1655,11 @@ struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev, dma_async_device_register(&device->common); - INIT_DELAYED_WORK(&device->work, ioat_dma_chan_watchdog); - schedule_delayed_work(&device->work, - WATCHDOG_DELAY); + if (device->version != IOAT_VER_3_0) { + INIT_DELAYED_WORK(&device->work, ioat_dma_chan_watchdog); + schedule_delayed_work(&device->work, + WATCHDOG_DELAY); + } return device; @@ -1621,7 +1693,9 @@ void ioat_dma_remove(struct ioatdma_device *device) pci_release_regions(device->pdev); pci_disable_device(device->pdev); - cancel_delayed_work(&device->work); + if (device->version != IOAT_VER_3_0) { + cancel_delayed_work(&device->work); + } list_for_each_entry_safe(chan, _chan, &device->common.channels, device_node) { diff --git a/drivers/dma/ioatdma.h b/drivers/dma/ioatdma.h index 685adb62aa5a..a3306d0e1372 100644 --- a/drivers/dma/ioatdma.h +++ b/drivers/dma/ioatdma.h @@ -29,7 +29,7 @@ #include #include -#define IOAT_DMA_VERSION "2.18" +#define IOAT_DMA_VERSION "3.30" enum ioat_interrupt { none = 0, @@ -135,6 +135,7 @@ static inline void ioat_set_tcp_copy_break(struct ioatdma_device *dev) #ifdef CONFIG_NET_DMA switch (dev->version) { case IOAT_VER_1_2: + case IOAT_VER_3_0: sysctl_tcp_dma_copybreak = 4096; break; case IOAT_VER_2_0: @@ -150,11 +151,13 @@ struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev, void ioat_dma_remove(struct ioatdma_device *device); struct dca_provider *ioat_dca_init(struct pci_dev *pdev, void __iomem *iobase); struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase); +struct dca_provider *ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase); #else #define ioat_dma_probe(pdev, iobase) NULL #define ioat_dma_remove(device) do { } while (0) #define ioat_dca_init(pdev, iobase) NULL #define ioat2_dca_init(pdev, iobase) NULL +#define ioat3_dca_init(pdev, iobase) NULL #endif #endif /* IOATDMA_H */ diff --git a/drivers/dma/ioatdma_hw.h b/drivers/dma/ioatdma_hw.h index dd470fa91d86..f1ae2c776f74 100644 --- a/drivers/dma/ioatdma_hw.h +++ b/drivers/dma/ioatdma_hw.h @@ -35,6 +35,7 @@ #define IOAT_PCI_SID 0x8086 #define IOAT_VER_1_2 0x12 /* Version 1.2 */ #define IOAT_VER_2_0 0x20 /* Version 2.0 */ +#define IOAT_VER_3_0 0x30 /* Version 3.0 */ struct ioat_dma_descriptor { uint32_t size; diff --git a/drivers/dma/ioatdma_registers.h b/drivers/dma/ioatdma_registers.h index 9832d7ebd931..827cb503cac6 100644 --- a/drivers/dma/ioatdma_registers.h +++ b/drivers/dma/ioatdma_registers.h @@ -25,6 +25,10 @@ #define IOAT_PCI_DMACTRL_DMA_EN 0x00000001 #define IOAT_PCI_DMACTRL_MSI_EN 0x00000002 +#define IOAT_PCI_DEVICE_ID_OFFSET 0x02 +#define IOAT_PCI_DMAUNCERRSTS_OFFSET 0x148 +#define IOAT_PCI_CHANERRMASK_INT_OFFSET 0x184 + /* MMIO Device Registers */ #define IOAT_CHANCNT_OFFSET 0x00 /* 8-bit */ @@ -149,7 +153,23 @@ #define IOAT_DCA_GREQID_VALID 0x20000000 #define IOAT_DCA_GREQID_LASTID 0x80000000 +#define IOAT3_CSI_CAPABILITY_OFFSET 0x08 +#define IOAT3_CSI_CAPABILITY_PREFETCH 0x1 + +#define IOAT3_PCI_CAPABILITY_OFFSET 0x0A +#define IOAT3_PCI_CAPABILITY_MEMWR 0x1 + +#define IOAT3_CSI_CONTROL_OFFSET 0x0C +#define IOAT3_CSI_CONTROL_PREFETCH 0x1 + +#define IOAT3_PCI_CONTROL_OFFSET 0x0E +#define IOAT3_PCI_CONTROL_MEMWR 0x1 + +#define IOAT3_APICID_TAG_MAP_OFFSET 0x10 +#define IOAT3_APICID_TAG_MAP_OFFSET_LOW 0x10 +#define IOAT3_APICID_TAG_MAP_OFFSET_HIGH 0x14 +#define IOAT3_DCA_GREQID_OFFSET 0x02 #define IOAT1_CHAINADDR_OFFSET 0x0C /* 64-bit Descriptor Chain Address Register */ #define IOAT2_CHAINADDR_OFFSET 0x10 /* 64-bit Descriptor Chain Address Register */ diff --git a/include/linux/dca.h b/include/linux/dca.h index af61cd1f37e9..b00a753eda53 100644 --- a/include/linux/dca.h +++ b/include/linux/dca.h @@ -10,6 +10,7 @@ void dca_unregister_notify(struct notifier_block *nb); #define DCA_PROVIDER_REMOVE 0x0002 struct dca_provider { + struct list_head node; struct dca_ops *ops; struct device *cd; int id; @@ -18,7 +19,9 @@ struct dca_provider { struct dca_ops { int (*add_requester) (struct dca_provider *, struct device *); int (*remove_requester) (struct dca_provider *, struct device *); - u8 (*get_tag) (struct dca_provider *, int cpu); + u8 (*get_tag) (struct dca_provider *, struct device *, + int cpu); + int (*dev_managed) (struct dca_provider *, struct device *); }; struct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size); @@ -32,9 +35,11 @@ static inline void *dca_priv(struct dca_provider *dca) } /* Requester API */ +#define DCA_GET_TAG_TWO_ARGS int dca_add_requester(struct device *dev); int dca_remove_requester(struct device *dev); u8 dca_get_tag(int cpu); +u8 dca3_get_tag(struct device *dev, int cpu); /* internal stuff */ int __init dca_sysfs_init(void); diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 9b940e644179..06a5b7ae79be 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2363,6 +2363,14 @@ #define PCI_DEVICE_ID_INTEL_ICH9_7 0x2916 #define PCI_DEVICE_ID_INTEL_ICH9_8 0x2918 #define PCI_DEVICE_ID_INTEL_82855PM_HB 0x3340 +#define PCI_DEVICE_ID_INTEL_IOAT_TBG4 0x3429 +#define PCI_DEVICE_ID_INTEL_IOAT_TBG5 0x342a +#define PCI_DEVICE_ID_INTEL_IOAT_TBG6 0x342b +#define PCI_DEVICE_ID_INTEL_IOAT_TBG7 0x342c +#define PCI_DEVICE_ID_INTEL_IOAT_TBG0 0x3430 +#define PCI_DEVICE_ID_INTEL_IOAT_TBG1 0x3431 +#define PCI_DEVICE_ID_INTEL_IOAT_TBG2 0x3432 +#define PCI_DEVICE_ID_INTEL_IOAT_TBG3 0x3433 #define PCI_DEVICE_ID_INTEL_82830_HB 0x3575 #define PCI_DEVICE_ID_INTEL_82830_CGC 0x3577 #define PCI_DEVICE_ID_INTEL_82855GM_HB 0x3580 -- cgit v1.2.3 From a6260ef84103fa8a51a67b6a58e5e16c676e08ad Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Fri, 9 May 2008 16:10:37 +0200 Subject: m68knommu: add ffs and __ffs plattform which support ISA A+ or ISA C the ff1 and bitrev opcode appears in ISA C and ISA A+ what isn't supported by all plattforms. The assembly optimization is automaticly enabled if the compiler understand the required cpu keyword. My m5235 seems to boot and run fine so far. Signed-off-by: Sebastian Siewior Signed-off-by: Greg Ungerer --- arch/m68knommu/Makefile | 11 +++++++---- include/asm-m68knommu/bitops.h | 30 ++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/arch/m68knommu/Makefile b/arch/m68knommu/Makefile index e0b5f62e395c..b63bbcf874ff 100644 --- a/arch/m68knommu/Makefile +++ b/arch/m68knommu/Makefile @@ -8,6 +8,8 @@ # (C) Copyright 2002, Greg Ungerer # +KBUILD_DEFCONFIG := m5208evb_defconfig + platform-$(CONFIG_M68328) := 68328 platform-$(CONFIG_M68EZ328) := 68EZ328 platform-$(CONFIG_M68VZ328) := 68VZ328 @@ -90,13 +92,14 @@ export PLATFORM BOARD MODEL CPUCLASS cflags-$(CONFIG_M5206) := -m5200 cflags-$(CONFIG_M5206e) := -m5200 cflags-$(CONFIG_M520x) := -m5307 -cflags-$(CONFIG_M523x) := -m5307 +cflags-$(CONFIG_M523x) := $(call cc-option,-mcpu=523x,-m5307) cflags-$(CONFIG_M5249) := -m5200 -cflags-$(CONFIG_M527x) := -m5307 +cflags-$(CONFIG_M5271) := $(call cc-option,-mcpu=5271,-m5307) cflags-$(CONFIG_M5272) := -m5307 -cflags-$(CONFIG_M528x) := -m5307 +cflags-$(CONFIG_M5275) := $(call cc-option,-mcpu=5275,-m5307) +cflags-$(CONFIG_M528x) := $(call cc-option,-m528x,-m5307) cflags-$(CONFIG_M5307) := -m5307 -cflags-$(CONFIG_M532x) := -m5307 +cflags-$(CONFIG_M532x) := $(call cc-option,-mcpu=532x,-m5307) cflags-$(CONFIG_M5407) := -m5200 cflags-$(CONFIG_M68328) := -m68000 cflags-$(CONFIG_M68EZ328) := -m68000 diff --git a/include/asm-m68knommu/bitops.h b/include/asm-m68knommu/bitops.h index c142fbf2f376..6f3685eab44c 100644 --- a/include/asm-m68knommu/bitops.h +++ b/include/asm-m68knommu/bitops.h @@ -14,8 +14,38 @@ #error only can be included directly #endif +#if defined (__mcfisaaplus__) || defined (__mcfisac__) +static inline int ffs(unsigned int val) +{ + if (!val) + return 0; + + asm volatile( + "bitrev %0\n\t" + "ff1 %0\n\t" + : "=d" (val) + : "0" (val) + ); + val++; + return val; +} + +static inline int __ffs(unsigned int val) +{ + asm volatile( + "bitrev %0\n\t" + "ff1 %0\n\t" + : "=d" (val) + : "0" (val) + ); + return val; +} + +#else #include #include +#endif + #include #include -- cgit v1.2.3 From e872504b311cec52f7a316a0037fb959080dbea0 Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Sat, 17 May 2008 21:51:15 +0200 Subject: m68knommu: add byteswap assembly opcode for ISA A+ Signed-off-by: Sebastian Siewior Signed-off-by: Greg Ungerer --- include/asm-m68knommu/byteorder.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-m68knommu/byteorder.h b/include/asm-m68knommu/byteorder.h index 8fcde907b0f9..20bb4426b610 100644 --- a/include/asm-m68knommu/byteorder.h +++ b/include/asm-m68knommu/byteorder.h @@ -1,13 +1,27 @@ #ifndef _M68KNOMMU_BYTEORDER_H #define _M68KNOMMU_BYTEORDER_H -#include +#include #if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__) # define __BYTEORDER_HAS_U64__ # define __SWAB_64_THRU_32__ #endif +#if defined (__mcfisaaplus__) || defined (__mcfisac__) +static inline __attribute_const__ __u32 ___arch__swab32(__u32 val) +{ + asm( + "byterev %0" + : "=d" (val) + : "0" (val) + ); + return val; +} + +#define __arch__swab32(x) ___arch__swab32(x) +#endif + #include #endif /* _M68KNOMMU_BYTEORDER_H */ -- cgit v1.2.3 From 6dbeb456baaba05d60e7ca8213da26142062408a Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Tue, 13 May 2008 18:52:44 +0200 Subject: m68knommu: add read_barrier_depends() and irqs_disabled_flags() /home/bigeasy/git/linux-2.6-ftrace/kernel/trace/trace.c: In function 'tracing_generic_entry_update': /home/bigeasy/git/linux-2.6-ftrace/kernel/trace/trace.c:802: error: implicit declaration of function 'irqs_disabled_flags' make[3]: *** [kernel/trace/trace.o] Error 1 /home/bigeasy/git/linux-2.6-ftrace/kernel/trace/ftrace.c: In function 'ftrace_list_func': /home/bigeasy/git/linux-2.6-ftrace/kernel/trace/ftrace.c:61: error: implicit declaration of function 'read_barrier_depends' Signed-off-by: Sebastian Siewior Signed-off-by: Greg Ungerer --- include/asm-m68knommu/system.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include') diff --git a/include/asm-m68knommu/system.h b/include/asm-m68knommu/system.h index 64c64432bbb8..40f49de69821 100644 --- a/include/asm-m68knommu/system.h +++ b/include/asm-m68knommu/system.h @@ -118,6 +118,8 @@ asmlinkage void resume(void); #define smp_read_barrier_depends() do { } while(0) #endif +#define read_barrier_depends() ((void)0) + #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) struct __xchg_dummy { unsigned long a[100]; }; @@ -310,4 +312,13 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz #endif #define arch_align_stack(x) (x) + +static inline int irqs_disabled_flags(unsigned long flags) +{ + if (flags & 0x0700) + return 0; + else + return 1; +} + #endif /* _M68KNOMMU_SYSTEM_H */ -- cgit v1.2.3 From c1863bed8c88324405dc2a922c153fe5d7df716c Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Mon, 28 Apr 2008 11:43:17 +0200 Subject: m68knommu: remove RPXCLASSIC from the m68k tree This ifdefs are leftovers from the time as the driver was running on a ppc. Signed-off-by: Sebastian Siewior Signed-off-by: Greg Ungerer --- drivers/net/fec.c | 42 ---------------------------------------- include/asm-m68knommu/commproc.h | 19 ------------------ 2 files changed, 61 deletions(-) (limited to 'include') diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 6abbcd5f7c3a..0ef7226efd5c 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -43,17 +43,9 @@ #include #include -#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || \ - defined(CONFIG_M5272) || defined(CONFIG_M528x) || \ - defined(CONFIG_M520x) || defined(CONFIG_M532x) #include #include #include "fec.h" -#else -#include -#include -#include "commproc.h" -#endif #if defined(CONFIG_FEC2) #define FEC_MAX_PORTS 2 @@ -1229,14 +1221,9 @@ static phy_info_t const * const phy_info[] = { /* ------------------------------------------------------------------------- */ #ifdef HAVE_mii_link_interrupt -#ifdef CONFIG_RPXCLASSIC -static void -mii_link_interrupt(void *dev_id); -#else static irqreturn_t mii_link_interrupt(int irq, void * dev_id); #endif -#endif #if defined(CONFIG_M5272) /* @@ -1789,20 +1776,6 @@ static void __inline__ fec_request_intrs(struct net_device *dev) if (request_8xxirq(FEC_INTERRUPT, fec_enet_interrupt, 0, "fec", dev) != 0) panic("Could not allocate FEC IRQ!"); - -#ifdef CONFIG_RPXCLASSIC - /* Make Port C, bit 15 an input that causes interrupts. - */ - immap->im_ioport.iop_pcpar &= ~0x0001; - immap->im_ioport.iop_pcdir &= ~0x0001; - immap->im_ioport.iop_pcso &= ~0x0001; - immap->im_ioport.iop_pcint |= 0x0001; - cpm_install_handler(CPMVEC_PIO_PC15, mii_link_interrupt, dev); - - /* Make LEDS reflect Link status. - */ - *((uint *) RPX_CSR_ADDR) &= ~BCSR2_FETHLEDMODE; -#endif } static void __inline__ fec_get_mac(struct net_device *dev) @@ -1811,16 +1784,6 @@ static void __inline__ fec_get_mac(struct net_device *dev) bd = (bd_t *)__res; memcpy(dev->dev_addr, bd->bi_enetaddr, ETH_ALEN); - -#ifdef CONFIG_RPXCLASSIC - /* The Embedded Planet boards have only one MAC address in - * the EEPROM, but can have two Ethernet ports. For the - * FEC port, we create another address by setting one of - * the address bits above something that would have (up to - * now) been allocated. - */ - dev->dev_adrd[3] |= 0x80; -#endif } static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep) @@ -2099,13 +2062,8 @@ mii_discover_phy(uint mii_reg, struct net_device *dev) /* This interrupt occurs when the PHY detects a link change. */ #ifdef HAVE_mii_link_interrupt -#ifdef CONFIG_RPXCLASSIC -static void -mii_link_interrupt(void *dev_id) -#else static irqreturn_t mii_link_interrupt(int irq, void * dev_id) -#endif { struct net_device *dev = dev_id; struct fec_enet_private *fep = netdev_priv(dev); diff --git a/include/asm-m68knommu/commproc.h b/include/asm-m68knommu/commproc.h index 36e870b468ef..edf5eb6c08d2 100644 --- a/include/asm-m68knommu/commproc.h +++ b/include/asm-m68knommu/commproc.h @@ -519,25 +519,6 @@ typedef struct scc_enet { #define SICR_ENET_CLKRT ((uint)0x00002c00) #endif -#ifdef CONFIG_RPXCLASSIC -/* Bits in parallel I/O port registers that have to be set/cleared - * to configure the pins for SCC1 use. - */ -#define PA_ENET_RXD ((ushort)0x0001) -#define PA_ENET_TXD ((ushort)0x0002) -#define PA_ENET_TCLK ((ushort)0x0200) -#define PA_ENET_RCLK ((ushort)0x0800) -#define PB_ENET_TENA ((uint)0x00001000) -#define PC_ENET_CLSN ((ushort)0x0010) -#define PC_ENET_RENA ((ushort)0x0020) - -/* Control bits in the SICR to route TCLK (CLK2) and RCLK (CLK4) to - * SCC1. Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero. - */ -#define SICR_ENET_MASK ((uint)0x000000ff) -#define SICR_ENET_CLKRT ((uint)0x0000003d) -#endif - /* SCC Event register as used by Ethernet. */ #define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ -- cgit v1.2.3 From e14fa82439d33cef67eaafc1a48960bbfa610c8e Mon Sep 17 00:00:00 2001 From: Riku Voipio Date: Sat, 31 May 2008 14:43:41 +0100 Subject: leds: Add pca9532 led driver NXP pca9532 is a LED dimmer/controller attached to i2c bus. It allows attaching upto 16 leds which can either be on, off or dimmed and/or blinked with the two PWM modulators available. This driver is a "new-style" i2c driver that adheres to the driver model and implements the led framework api. Since the leds connected to the driver are platform specific, it is only useful when platform data is passed to the driver to define what leds are connected to which pins. Signed-off-by: Riku Voipio Signed-off-by: Andrew Morton Signed-off-by: Richard Purdie --- drivers/leds/Kconfig | 8 + drivers/leds/Makefile | 1 + drivers/leds/leds-pca9532.c | 337 +++++++++++++++++++++++++++++++++++++++++++ include/linux/leds-pca9532.h | 45 ++++++ 4 files changed, 391 insertions(+) create mode 100644 drivers/leds/leds-pca9532.c create mode 100644 include/linux/leds-pca9532.h (limited to 'include') diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 86a369bc57d6..1c35dfaef721 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -103,6 +103,14 @@ config LEDS_HP6XX This option enables led support for the handheld HP Jornada 620/660/680/690. +config LEDS_PCA9532 + tristate "LED driver for PCA9532 dimmer" + depends on LEDS_CLASS && I2C && INPUT && EXPERIMENTAL + help + This option enables support for NXP pca9532 + led controller. It is generally only usefull + as a platform driver + config LEDS_GPIO tristate "LED Support for GPIO connected LEDs" depends on LEDS_CLASS && GENERIC_GPIO diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 973d626f5f4a..7156f9970fa9 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o obj-$(CONFIG_LEDS_H1940) += leds-h1940.o obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o +obj-$(CONFIG_LEDS_PCA9532) += leds-pca9532.o obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c new file mode 100644 index 000000000000..4064d4f6b33b --- /dev/null +++ b/drivers/leds/leds-pca9532.c @@ -0,0 +1,337 @@ +/* + * pca9532.c - 16-bit Led dimmer + * + * Copyright (C) 2008 Riku Voipio + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * Datasheet: http://www.nxp.com/acrobat/datasheets/PCA9532_3.pdf + * + */ + +#include +#include +#include +#include +#include +#include + +static const unsigned short normal_i2c[] = { /*0x60,*/ I2C_CLIENT_END}; +I2C_CLIENT_INSMOD_1(pca9532); + +#define PCA9532_REG_PSC(i) (0x2+(i)*2) +#define PCA9532_REG_PWM(i) (0x3+(i)*2) +#define PCA9532_REG_LS0 0x6 +#define LED_REG(led) ((led>>2)+PCA9532_REG_LS0) +#define LED_NUM(led) (led & 0x3) + +#define ldev_to_led(c) container_of(c, struct pca9532_led, ldev) + +struct pca9532_data { + struct i2c_client *client; + struct pca9532_led leds[16]; + struct mutex update_lock; + struct input_dev *idev; + u8 pwm[2]; + u8 psc[2]; +}; + +static int pca9532_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int pca9532_remove(struct i2c_client *client); + +static const struct i2c_device_id pca9532_id[] = { + { "pca9532", 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, pca9532_id); + +static struct i2c_driver pca9532_driver = { + .driver = { + .name = "pca9532", + }, + .probe = pca9532_probe, + .remove = pca9532_remove, + .id_table = pca9532_id, +}; + +/* We have two pwm/blinkers, but 16 possible leds to drive. Additionaly, + * the clever Thecus people are using one pwm to drive the beeper. So, + * as a compromise we average one pwm to the values requested by all + * leds that are not ON/OFF. + * */ +static int pca9532_setpwm(struct i2c_client *client, int pwm, int blink, + enum led_brightness value) +{ + int a = 0, b = 0, i = 0; + struct pca9532_data *data = i2c_get_clientdata(client); + for (i = 0; i < 16; i++) { + if (data->leds[i].type == PCA9532_TYPE_LED && + data->leds[i].state == PCA9532_PWM0+pwm) { + a++; + b += data->leds[i].ldev.brightness; + } + } + if (a == 0) { + dev_err(&client->dev, + "fear of division by zero %d/%d, wanted %d\n", + b, a, value); + return -EINVAL; + } + b = b/a; + if (b > 0xFF) + return -EINVAL; + mutex_lock(&data->update_lock); + data->pwm[pwm] = b; + i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(pwm), + data->pwm[pwm]); + data->psc[pwm] = blink; + i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(pwm), + data->psc[pwm]); + mutex_unlock(&data->update_lock); + return 0; +} + +/* Set LED routing */ +static void pca9532_setled(struct pca9532_led *led) +{ + struct i2c_client *client = led->client; + struct pca9532_data *data = i2c_get_clientdata(client); + char reg; + + mutex_lock(&data->update_lock); + reg = i2c_smbus_read_byte_data(client, LED_REG(led->id)); + /* zero led bits */ + reg = reg & ~(0x3<id)*2); + /* set the new value */ + reg = reg | (led->state << LED_NUM(led->id)*2); + i2c_smbus_write_byte_data(client, LED_REG(led->id), reg); + mutex_unlock(&data->update_lock); +} + +static void pca9532_set_brightness(struct led_classdev *led_cdev, + enum led_brightness value) +{ + int err = 0; + struct pca9532_led *led = ldev_to_led(led_cdev); + + if (value == LED_OFF) + led->state = PCA9532_OFF; + else if (value == LED_FULL) + led->state = PCA9532_ON; + else { + led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */ + err = pca9532_setpwm(led->client, 0, 0, value); + if (err) + return; /* XXX: led api doesn't allow error code? */ + } + pca9532_setled(led); +} + +static int pca9532_set_blink(struct led_classdev *led_cdev, + unsigned long *delay_on, unsigned long *delay_off) +{ + struct pca9532_led *led = ldev_to_led(led_cdev); + struct i2c_client *client = led->client; + int psc; + + if (*delay_on == 0 && *delay_off == 0) { + /* led subsystem ask us for a blink rate */ + *delay_on = 1000; + *delay_off = 1000; + } + if (*delay_on != *delay_off || *delay_on > 1690 || *delay_on < 6) + return -EINVAL; + + /* Thecus specific: only use PSC/PWM 0 */ + psc = (*delay_on * 152-1)/1000; + return pca9532_setpwm(client, 0, psc, led_cdev->brightness); +} + +int pca9532_event(struct input_dev *dev, unsigned int type, unsigned int code, + int value) +{ + struct pca9532_data *data = input_get_drvdata(dev); + + if (type != EV_SND && (code != SND_BELL || code != SND_TONE)) + return -1; + + /* XXX: allow different kind of beeps with psc/pwm modifications */ + if (value > 1 && value < 32767) + data->pwm[1] = 127; + else + data->pwm[1] = 0; + + dev_info(&dev->dev, "setting beep to %d \n", data->pwm[1]); + mutex_lock(&data->update_lock); + i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(1), + data->pwm[1]); + mutex_unlock(&data->update_lock); + + return 0; +} + +static int pca9532_configure(struct i2c_client *client, + struct pca9532_data *data, struct pca9532_platform_data *pdata) +{ + int i, err = 0; + + for (i = 0; i < 2; i++) { + data->pwm[i] = pdata->pwm[i]; + data->psc[i] = pdata->psc[i]; + i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(i), + data->pwm[i]); + i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(i), + data->psc[i]); + } + + for (i = 0; i < 16; i++) { + struct pca9532_led *led = &data->leds[i]; + struct pca9532_led *pled = &pdata->leds[i]; + led->client = client; + led->id = i; + led->type = pled->type; + switch (led->type) { + case PCA9532_TYPE_NONE: + break; + case PCA9532_TYPE_LED: + led->state = pled->state; + led->name = pled->name; + led->ldev.name = led->name; + led->ldev.brightness = LED_OFF; + led->ldev.brightness_set = pca9532_set_brightness; + led->ldev.blink_set = pca9532_set_blink; + if (led_classdev_register(&client->dev, + &led->ldev) < 0) { + dev_err(&client->dev, + "couldn't register LED %s\n", + led->name); + goto exit; + } + pca9532_setled(led); + break; + case PCA9532_TYPE_N2100_BEEP: + BUG_ON(data->idev); + led->state = PCA9532_PWM1; + pca9532_setled(led); + data->idev = input_allocate_device(); + if (data->idev == NULL) { + err = -ENOMEM; + goto exit; + } + data->idev->name = pled->name; + data->idev->phys = "i2c/pca9532"; + data->idev->id.bustype = BUS_HOST; + data->idev->id.vendor = 0x001f; + data->idev->id.product = 0x0001; + data->idev->id.version = 0x0100; + data->idev->evbit[0] = BIT_MASK(EV_SND); + data->idev->sndbit[0] = BIT_MASK(SND_BELL) | + BIT_MASK(SND_TONE); + data->idev->event = pca9532_event; + input_set_drvdata(data->idev, data); + err = input_register_device(data->idev); + if (err) { + input_free_device(data->idev); + data->idev = NULL; + goto exit; + } + break; + } + } + return 0; + +exit: + if (i > 0) + for (i = i - 1; i >= 0; i--) + switch (data->leds[i].type) { + case PCA9532_TYPE_NONE: + break; + case PCA9532_TYPE_LED: + led_classdev_unregister(&data->leds[i].ldev); + break; + case PCA9532_TYPE_N2100_BEEP: + if (data->idev != NULL) { + input_unregister_device(data->idev); + input_free_device(data->idev); + data->idev = NULL; + } + break; + } + + return err; + +} + +static int pca9532_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pca9532_data *data = i2c_get_clientdata(client); + struct pca9532_platform_data *pca9532_pdata = client->dev.platform_data; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) + return -EIO; + + data = kzalloc(sizeof(struct pca9532_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + dev_info(&client->dev, "setting platform data\n"); + i2c_set_clientdata(client, data); + data->client = client; + mutex_init(&data->update_lock); + + if (pca9532_pdata == NULL) + return -EIO; + + pca9532_configure(client, data, pca9532_pdata); + return 0; + +} + +static int pca9532_remove(struct i2c_client *client) +{ + struct pca9532_data *data = i2c_get_clientdata(client); + int i; + for (i = 0; i < 16; i++) + switch (data->leds[i].type) { + case PCA9532_TYPE_NONE: + break; + case PCA9532_TYPE_LED: + led_classdev_unregister(&data->leds[i].ldev); + break; + case PCA9532_TYPE_N2100_BEEP: + if (data->idev != NULL) { + input_unregister_device(data->idev); + input_free_device(data->idev); + data->idev = NULL; + } + break; + } + + kfree(data); + i2c_set_clientdata(client, NULL); + return 0; +} + +static int __init pca9532_init(void) +{ + return i2c_add_driver(&pca9532_driver); +} + +static void __exit pca9532_exit(void) +{ + i2c_del_driver(&pca9532_driver); +} + +MODULE_AUTHOR("Riku Voipio "); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("PCA 9532 LED dimmer"); + +module_init(pca9532_init); +module_exit(pca9532_exit); + diff --git a/include/linux/leds-pca9532.h b/include/linux/leds-pca9532.h new file mode 100644 index 000000000000..81b4207deb95 --- /dev/null +++ b/include/linux/leds-pca9532.h @@ -0,0 +1,45 @@ +/* + * pca9532.h - platform data structure for pca9532 led controller + * + * Copyright (C) 2008 Riku Voipio + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * Datasheet: http://www.nxp.com/acrobat/datasheets/PCA9532_3.pdf + * + */ + +#ifndef __LINUX_PCA9532_H +#define __LINUX_PCA9532_H + +#include + +enum pca9532_state { + PCA9532_OFF = 0x0, + PCA9532_ON = 0x1, + PCA9532_PWM0 = 0x2, + PCA9532_PWM1 = 0x3 +}; + +enum pca9532_type { PCA9532_TYPE_NONE, PCA9532_TYPE_LED, + PCA9532_TYPE_N2100_BEEP }; + +struct pca9532_led { + u8 id; + struct i2c_client *client; + char *name; + struct led_classdev ldev; + enum pca9532_type type; + enum pca9532_state state; +}; + +struct pca9532_platform_data { + struct pca9532_led leds[16]; + u8 pwm[2]; + u8 psc[2]; +}; + +#endif /* __LINUX_PCA9532_H */ + -- cgit v1.2.3 From 781a54e7664cc0089287a90d27086e9656ac68a1 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Sat, 31 May 2008 15:23:19 +0100 Subject: leds: mark led_classdev.default_trigger as const LED classdev core doesn't modify memory pointed by the default_trigger, so mark it as const and we'll able to pass const char *s without getting compiler warnings. Signed-off-by: Anton Vorontsov Signed-off-by: Richard Purdie --- include/linux/leds.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/leds.h b/include/linux/leds.h index 519df72e939d..e7a5e89932fe 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -48,7 +48,7 @@ struct led_classdev { struct device *dev; struct list_head node; /* LED Device list */ - char *default_trigger; /* Trigger to use */ + const char *default_trigger; /* Trigger to use */ #ifdef CONFIG_LEDS_TRIGGERS /* Protects the trigger data below */ -- cgit v1.2.3 From f46e9203d9a100bae216cc06e17f2e77351aa8d8 Mon Sep 17 00:00:00 2001 From: Nate Case Date: Wed, 16 Jul 2008 22:49:55 +0100 Subject: leds: Add support for Philips PCA955x I2C LED drivers This driver supports the PCA9550, PCA9551, PCA9552, and PCA9553 LED driver chips. Signed-off-by: Nate Case Signed-off-by: Andrew Morton Signed-off-by: Richard Purdie --- drivers/leds/Kconfig | 8 + drivers/leds/Makefile | 1 + drivers/leds/leds-pca955x.c | 384 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/leds.h | 14 ++ 4 files changed, 407 insertions(+) create mode 100644 drivers/leds/leds-pca955x.c (limited to 'include') diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 1c35dfaef721..9556262dda5a 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -155,6 +155,14 @@ config LEDS_CLEVO_MAIL To compile this driver as a module, choose M here: the module will be called leds-clevo-mail. +config LEDS_PCA955X + tristate "LED Support for PCA955x I2C chips" + depends on LEDS_CLASS && I2C + help + This option enables support for LEDs connected to PCA955x + LED driver chips accessed via the I2C bus. Supported + devices include PCA9550, PCA9551, PCA9552, and PCA9553. + comment "LED Triggers" config LEDS_TRIGGERS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 7156f9970fa9..ff7982b44565 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o obj-$(CONFIG_LEDS_FSG) += leds-fsg.o +obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o # LED Triggers obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c new file mode 100644 index 000000000000..146c06972863 --- /dev/null +++ b/drivers/leds/leds-pca955x.c @@ -0,0 +1,384 @@ +/* + * Copyright 2007-2008 Extreme Engineering Solutions, Inc. + * + * Author: Nate Case + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * LED driver for various PCA955x I2C LED drivers + * + * Supported devices: + * + * Device Description 7-bit slave address + * ------ ----------- ------------------- + * PCA9550 2-bit driver 0x60 .. 0x61 + * PCA9551 8-bit driver 0x60 .. 0x67 + * PCA9552 16-bit driver 0x60 .. 0x67 + * PCA9553/01 4-bit driver 0x62 + * PCA9553/02 4-bit driver 0x63 + * + * Philips PCA955x LED driver chips follow a register map as shown below: + * + * Control Register Description + * ---------------- ----------- + * 0x0 Input register 0 + * .. + * NUM_INPUT_REGS - 1 Last Input register X + * + * NUM_INPUT_REGS Frequency prescaler 0 + * NUM_INPUT_REGS + 1 PWM register 0 + * NUM_INPUT_REGS + 2 Frequency prescaler 1 + * NUM_INPUT_REGS + 3 PWM register 1 + * + * NUM_INPUT_REGS + 4 LED selector 0 + * NUM_INPUT_REGS + 4 + * + NUM_LED_REGS - 1 Last LED selector + * + * where NUM_INPUT_REGS and NUM_LED_REGS vary depending on how many + * bits the chip supports. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* LED select registers determine the source that drives LED outputs */ +#define PCA955X_LS_LED_ON 0x0 /* Output LOW */ +#define PCA955X_LS_LED_OFF 0x1 /* Output HI-Z */ +#define PCA955X_LS_BLINK0 0x2 /* Blink at PWM0 rate */ +#define PCA955X_LS_BLINK1 0x3 /* Blink at PWM1 rate */ + +enum pca955x_type { + pca9550, + pca9551, + pca9552, + pca9553, +}; + +struct pca955x_chipdef { + int bits; + u8 slv_addr; /* 7-bit slave address mask */ + int slv_addr_shift; /* Number of bits to ignore */ +}; + +static struct pca955x_chipdef pca955x_chipdefs[] = { + [pca9550] = { + .bits = 2, + .slv_addr = /* 110000x */ 0x60, + .slv_addr_shift = 1, + }, + [pca9551] = { + .bits = 8, + .slv_addr = /* 1100xxx */ 0x60, + .slv_addr_shift = 3, + }, + [pca9552] = { + .bits = 16, + .slv_addr = /* 1100xxx */ 0x60, + .slv_addr_shift = 3, + }, + [pca9553] = { + .bits = 4, + .slv_addr = /* 110001x */ 0x62, + .slv_addr_shift = 1, + }, +}; + +static const struct i2c_device_id pca955x_id[] = { + { "pca9550", pca9550 }, + { "pca9551", pca9551 }, + { "pca9552", pca9552 }, + { "pca9553", pca9553 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, pca955x_id); + +struct pca955x_led { + struct pca955x_chipdef *chipdef; + struct i2c_client *client; + struct work_struct work; + spinlock_t lock; + enum led_brightness brightness; + struct led_classdev led_cdev; + int led_num; /* 0 .. 15 potentially */ + char name[32]; +}; + +/* 8 bits per input register */ +static inline int pca95xx_num_input_regs(int bits) +{ + return (bits + 7) / 8; +} + +/* 4 bits per LED selector register */ +static inline int pca95xx_num_led_regs(int bits) +{ + return (bits + 3) / 4; +} + +/* + * Return an LED selector register value based on an existing one, with + * the appropriate 2-bit state value set for the given LED number (0-3). + */ +static inline u8 pca955x_ledsel(u8 oldval, int led_num, int state) +{ + return (oldval & (~(0x3 << (led_num << 1)))) | + ((state & 0x3) << (led_num << 1)); +} + +/* + * Write to frequency prescaler register, used to program the + * period of the PWM output. period = (PSCx + 1) / 38 + */ +static void pca955x_write_psc(struct i2c_client *client, int n, u8 val) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + i2c_smbus_write_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 2*n, + val); +} + +/* + * Write to PWM register, which determines the duty cycle of the + * output. LED is OFF when the count is less than the value of this + * register, and ON when it is greater. If PWMx == 0, LED is always OFF. + * + * Duty cycle is (256 - PWMx) / 256 + */ +static void pca955x_write_pwm(struct i2c_client *client, int n, u8 val) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + i2c_smbus_write_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 1 + 2*n, + val); +} + +/* + * Write to LED selector register, which determines the source that + * drives the LED output. + */ +static void pca955x_write_ls(struct i2c_client *client, int n, u8 val) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + i2c_smbus_write_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n, + val); +} + +/* + * Read the LED selector register, which determines the source that + * drives the LED output. + */ +static u8 pca955x_read_ls(struct i2c_client *client, int n) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + return (u8) i2c_smbus_read_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n); +} + +static void pca955x_led_work(struct work_struct *work) +{ + struct pca955x_led *pca955x; + u8 ls; + int chip_ls; /* which LSx to use (0-3 potentially) */ + int ls_led; /* which set of bits within LSx to use (0-3) */ + + pca955x = container_of(work, struct pca955x_led, work); + chip_ls = pca955x->led_num / 4; + ls_led = pca955x->led_num % 4; + + ls = pca955x_read_ls(pca955x->client, chip_ls); + + switch (pca955x->brightness) { + case LED_FULL: + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_LED_ON); + break; + case LED_OFF: + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_LED_OFF); + break; + case LED_HALF: + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_BLINK0); + break; + default: + /* + * Use PWM1 for all other values. This has the unwanted + * side effect of making all LEDs on the chip share the + * same brightness level if set to a value other than + * OFF, HALF, or FULL. But, this is probably better than + * just turning off for all other values. + */ + pca955x_write_pwm(pca955x->client, 1, 255-pca955x->brightness); + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_BLINK1); + break; + } + + pca955x_write_ls(pca955x->client, chip_ls, ls); +} + +void pca955x_led_set(struct led_classdev *led_cdev, enum led_brightness value) +{ + struct pca955x_led *pca955x; + + pca955x = container_of(led_cdev, struct pca955x_led, led_cdev); + + spin_lock(&pca955x->lock); + pca955x->brightness = value; + + /* + * Must use workqueue for the actual I/O since I2C operations + * can sleep. + */ + schedule_work(&pca955x->work); + + spin_unlock(&pca955x->lock); +} + +static int __devinit pca955x_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pca955x_led *pca955x; + int i; + int err = -ENODEV; + struct pca955x_chipdef *chip; + struct i2c_adapter *adapter; + struct led_platform_data *pdata; + + chip = &pca955x_chipdefs[id->driver_data]; + adapter = to_i2c_adapter(client->dev.parent); + pdata = client->dev.platform_data; + + /* Make sure the slave address / chip type combo given is possible */ + if ((client->addr & ~((1 << chip->slv_addr_shift) - 1)) != + chip->slv_addr) { + dev_err(&client->dev, "invalid slave address %02x\n", + client->addr); + return -ENODEV; + } + + printk(KERN_INFO "leds-pca955x: Using %s %d-bit LED driver at " + "slave address 0x%02x\n", + id->name, chip->bits, client->addr); + + if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) + return -EIO; + + if (pdata) { + if (pdata->num_leds != chip->bits) { + dev_err(&client->dev, "board info claims %d LEDs" + " on a %d-bit chip\n", + pdata->num_leds, chip->bits); + return -ENODEV; + } + } + + for (i = 0; i < chip->bits; i++) { + pca955x = kzalloc(sizeof(struct pca955x_led), GFP_KERNEL); + if (!pca955x) { + err = -ENOMEM; + goto exit; + } + + pca955x->chipdef = chip; + pca955x->client = client; + pca955x->led_num = i; + /* Platform data can specify LED names and default triggers */ + if (pdata) { + if (pdata->leds[i].name) + snprintf(pca955x->name, 32, "pca955x:%s", + pdata->leds[i].name); + if (pdata->leds[i].default_trigger) + pca955x->led_cdev.default_trigger = + pdata->leds[i].default_trigger; + } else { + snprintf(pca955x->name, 32, "pca955x:%d", i); + } + spin_lock_init(&pca955x->lock); + + pca955x->led_cdev.name = pca955x->name; + pca955x->led_cdev.brightness_set = + pca955x_led_set; + + /* + * Client data is a pointer to the _first_ pca955x_led + * struct + */ + if (i == 0) + i2c_set_clientdata(client, pca955x); + + INIT_WORK(&(pca955x->work), pca955x_led_work); + + led_classdev_register(&client->dev, &(pca955x->led_cdev)); + } + + /* Turn off LEDs */ + for (i = 0; i < pca95xx_num_led_regs(chip->bits); i++) + pca955x_write_ls(client, i, 0x55); + + /* PWM0 is used for half brightness or 50% duty cycle */ + pca955x_write_pwm(client, 0, 255-LED_HALF); + + /* PWM1 is used for variable brightness, default to OFF */ + pca955x_write_pwm(client, 1, 0); + + /* Set to fast frequency so we do not see flashing */ + pca955x_write_psc(client, 0, 0); + pca955x_write_psc(client, 1, 0); + + return 0; +exit: + return err; +} + +static int __devexit pca955x_remove(struct i2c_client *client) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + int leds = pca955x->chipdef->bits; + int i; + + for (i = 0; i < leds; i++) { + led_classdev_unregister(&(pca955x->led_cdev)); + cancel_work_sync(&(pca955x->work)); + kfree(pca955x); + pca955x = pca955x + 1; + } + + return 0; +} + +static struct i2c_driver pca955x_driver = { + .driver = { + .name = "leds-pca955x", + .owner = THIS_MODULE, + }, + .probe = pca955x_probe, + .remove = __devexit_p(pca955x_remove), + .id_table = pca955x_id, +}; + +static int __init pca955x_leds_init(void) +{ + return i2c_add_driver(&pca955x_driver); +} + +static void __exit pca955x_leds_exit(void) +{ + i2c_del_driver(&pca955x_driver); +} + +module_init(pca955x_leds_init); +module_exit(pca955x_leds_exit); + +MODULE_AUTHOR("Nate Case "); +MODULE_DESCRIPTION("PCA955x LED driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/leds.h b/include/linux/leds.h index e7a5e89932fe..d41ccb56146a 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -118,6 +118,20 @@ extern void ledtrig_ide_activity(void); #define ledtrig_ide_activity() do {} while(0) #endif +/* + * Generic LED platform data for describing LED names and default triggers. + */ +struct led_info { + const char *name; + char *default_trigger; + int flags; +}; + +struct led_platform_data { + int num_leds; + struct led_info *leds; +}; + /* For the leds-gpio driver */ struct gpio_led { const char *name; -- cgit v1.2.3 From 137d3edb48425f82a6a4226b664f90ed5e42eea5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 19 Jul 2008 23:03:35 +0900 Subject: sg: reimplement sg mapping iterator This is alternative implementation of sg content iterator introduced by commit 83e7d317... from Pierre Ossman in next-20080716. As there's already an sg iterator which iterates over sg entries themselves, name this sg_mapping_iterator. Slightly edited description from the original implementation follows. Iteration over a sg list is not that trivial when you take into account that memory pages might have to be mapped before being used. Unfortunately, that means that some parts of the kernel restrict themselves to directly accesible memory just to not have to deal with the mess. This patch adds a simple iterator system that allows any code to easily traverse an sg list and not have to deal with all the details. The user can decide to consume part of the iteration. Also, iteration can be stopped and resumed later if releasing the kmap between iteration steps is necessary. These features are useful to implement piecemeal sg copying for interrupt drive PIO for example. Signed-off-by: Tejun Heo Signed-off-by: Pierre Ossman --- include/linux/scatterlist.h | 38 ++++++++++ lib/scatterlist.c | 176 ++++++++++++++++++++++++++++++++------------ 2 files changed, 168 insertions(+), 46 deletions(-) (limited to 'include') diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index 71fc81360048..e5996984ddd0 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -224,4 +224,42 @@ size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents, */ #define SG_MAX_SINGLE_ALLOC (PAGE_SIZE / sizeof(struct scatterlist)) + +/* + * Mapping sg iterator + * + * Iterates over sg entries mapping page-by-page. On each successful + * iteration, @miter->page points to the mapped page and + * @miter->length bytes of data can be accessed at @miter->addr. As + * long as an interation is enclosed between start and stop, the user + * is free to choose control structure and when to stop. + * + * @miter->consumed is set to @miter->length on each iteration. It + * can be adjusted if the user can't consume all the bytes in one go. + * Also, a stopped iteration can be resumed by calling next on it. + * This is useful when iteration needs to release all resources and + * continue later (e.g. at the next interrupt). + */ + +#define SG_MITER_ATOMIC (1 << 0) /* use kmap_atomic */ + +struct sg_mapping_iter { + /* the following three fields can be accessed directly */ + struct page *page; /* currently mapped page */ + void *addr; /* pointer to the mapped area */ + size_t length; /* length of the mapped area */ + size_t consumed; /* number of consumed bytes */ + + /* these are internal states, keep away */ + struct scatterlist *__sg; /* current entry */ + unsigned int __nents; /* nr of remaining entries */ + unsigned int __offset; /* offset within sg */ + unsigned int __flags; +}; + +void sg_miter_start(struct sg_mapping_iter *miter, struct scatterlist *sgl, + unsigned int nents, unsigned int flags); +bool sg_miter_next(struct sg_mapping_iter *miter); +void sg_miter_stop(struct sg_mapping_iter *miter); + #endif /* _LINUX_SCATTERLIST_H */ diff --git a/lib/scatterlist.c b/lib/scatterlist.c index b80c21100d78..876ba6d5b670 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -294,6 +294,117 @@ int sg_alloc_table(struct sg_table *table, unsigned int nents, gfp_t gfp_mask) } EXPORT_SYMBOL(sg_alloc_table); +/** + * sg_miter_start - start mapping iteration over a sg list + * @miter: sg mapping iter to be started + * @sgl: sg list to iterate over + * @nents: number of sg entries + * + * Description: + * Starts mapping iterator @miter. + * + * Context: + * Don't care. + */ +void sg_miter_start(struct sg_mapping_iter *miter, struct scatterlist *sgl, + unsigned int nents, unsigned int flags) +{ + memset(miter, 0, sizeof(struct sg_mapping_iter)); + + miter->__sg = sgl; + miter->__nents = nents; + miter->__offset = 0; + miter->__flags = flags; +} +EXPORT_SYMBOL(sg_miter_start); + +/** + * sg_miter_next - proceed mapping iterator to the next mapping + * @miter: sg mapping iter to proceed + * + * Description: + * Proceeds @miter@ to the next mapping. @miter@ should have been + * started using sg_miter_start(). On successful return, + * @miter@->page, @miter@->addr and @miter@->length point to the + * current mapping. + * + * Context: + * IRQ disabled if SG_MITER_ATOMIC. IRQ must stay disabled till + * @miter@ is stopped. May sleep if !SG_MITER_ATOMIC. + * + * Returns: + * true if @miter contains the next mapping. false if end of sg + * list is reached. + */ +bool sg_miter_next(struct sg_mapping_iter *miter) +{ + unsigned int off, len; + + /* check for end and drop resources from the last iteration */ + if (!miter->__nents) + return false; + + sg_miter_stop(miter); + + /* get to the next sg if necessary. __offset is adjusted by stop */ + if (miter->__offset == miter->__sg->length && --miter->__nents) { + miter->__sg = sg_next(miter->__sg); + miter->__offset = 0; + } + + /* map the next page */ + off = miter->__sg->offset + miter->__offset; + len = miter->__sg->length - miter->__offset; + + miter->page = nth_page(sg_page(miter->__sg), off >> PAGE_SHIFT); + off &= ~PAGE_MASK; + miter->length = min_t(unsigned int, len, PAGE_SIZE - off); + miter->consumed = miter->length; + + if (miter->__flags & SG_MITER_ATOMIC) + miter->addr = kmap_atomic(miter->page, KM_BIO_SRC_IRQ) + off; + else + miter->addr = kmap(miter->page) + off; + + return true; +} +EXPORT_SYMBOL(sg_miter_next); + +/** + * sg_miter_stop - stop mapping iteration + * @miter: sg mapping iter to be stopped + * + * Description: + * Stops mapping iterator @miter. @miter should have been started + * started using sg_miter_start(). A stopped iteration can be + * resumed by calling sg_miter_next() on it. This is useful when + * resources (kmap) need to be released during iteration. + * + * Context: + * IRQ disabled if the SG_MITER_ATOMIC is set. Don't care otherwise. + */ +void sg_miter_stop(struct sg_mapping_iter *miter) +{ + WARN_ON(miter->consumed > miter->length); + + /* drop resources from the last iteration */ + if (miter->addr) { + miter->__offset += miter->consumed; + + if (miter->__flags & SG_MITER_ATOMIC) { + WARN_ON(!irqs_disabled()); + kunmap_atomic(miter->addr, KM_BIO_SRC_IRQ); + } else + kunmap(miter->addr); + + miter->page = NULL; + miter->addr = NULL; + miter->length = 0; + miter->consumed = 0; + } +} +EXPORT_SYMBOL(sg_miter_stop); + /** * sg_copy_buffer - Copy data between a linear buffer and an SG list * @sgl: The SG list @@ -309,56 +420,29 @@ EXPORT_SYMBOL(sg_alloc_table); static size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf, size_t buflen, int to_buffer) { - struct scatterlist *sg; - size_t buf_off = 0; - int i; - - WARN_ON(!irqs_disabled()); - - for_each_sg(sgl, sg, nents, i) { - struct page *page; - int n = 0; - unsigned int sg_off = sg->offset; - unsigned int sg_copy = sg->length; - - if (sg_copy > buflen) - sg_copy = buflen; - buflen -= sg_copy; - - while (sg_copy > 0) { - unsigned int page_copy; - void *p; - - page_copy = PAGE_SIZE - sg_off; - if (page_copy > sg_copy) - page_copy = sg_copy; - - page = nth_page(sg_page(sg), n); - p = kmap_atomic(page, KM_BIO_SRC_IRQ); - - if (to_buffer) - memcpy(buf + buf_off, p + sg_off, page_copy); - else { - memcpy(p + sg_off, buf + buf_off, page_copy); - flush_kernel_dcache_page(page); - } - - kunmap_atomic(p, KM_BIO_SRC_IRQ); - - buf_off += page_copy; - sg_off += page_copy; - if (sg_off == PAGE_SIZE) { - sg_off = 0; - n++; - } - sg_copy -= page_copy; + unsigned int offset = 0; + struct sg_mapping_iter miter; + + sg_miter_start(&miter, sgl, nents, SG_MITER_ATOMIC); + + while (sg_miter_next(&miter) && offset < buflen) { + unsigned int len; + + len = min(miter.length, buflen - offset); + + if (to_buffer) + memcpy(buf + offset, miter.addr, len); + else { + memcpy(miter.addr, buf + offset, len); + flush_kernel_dcache_page(miter.page); } - if (!buflen) - break; + offset += len; } - return buf_off; + sg_miter_stop(&miter); + + return offset; } /** -- cgit v1.2.3 From f472f80034ae5d0be7d7196c7e65d0ca8890afb4 Mon Sep 17 00:00:00 2001 From: Rafi Rubin Date: Thu, 19 Jun 2008 11:51:04 +0200 Subject: HID: add n-trig digitizer usage This adds a hid usage that is reported by the N-Trig digitizer in the Dell Latitude XT screen. Signed-off-by: Rafi Rubin Signed-off-by: Vojtech Pavlik Signed-off-by: Jiri Kosina --- include/linux/hid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/hid.h b/include/linux/hid.h index fe56b86f2c67..ac4e678a04ed 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -512,7 +512,7 @@ struct hid_descriptor { /* Applications from HID Usage Tables 4/8/99 Version 1.1 */ /* We ignore a few input applications that are not widely used */ -#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001)) +#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || (a == 0x000d0002)) /* HID core API */ -- cgit v1.2.3 From 95d04f0735b4fc837bff9aedcc3f3efb20ddc3d1 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 23 Jul 2008 08:12:26 -0700 Subject: IB/mlx4: Add support for memory management extensions and local DMA L_Key Add support for the following operations to mlx4 when device firmware supports them: - Send with invalidate and local invalidate send queue work requests; - Allocate/free fast register MRs; - Allocate/free fast register MR page lists; - Fast register MR send queue work requests; - Local DMA L_Key. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/cq.c | 12 ++++++ drivers/infiniband/hw/mlx4/main.c | 11 ++++++ drivers/infiniband/hw/mlx4/mlx4_ib.h | 15 ++++++++ drivers/infiniband/hw/mlx4/mr.c | 70 +++++++++++++++++++++++++++++++++++ drivers/infiniband/hw/mlx4/qp.c | 72 +++++++++++++++++++++++++++++++++--- drivers/net/mlx4/fw.c | 10 ++--- drivers/net/mlx4/fw.h | 2 +- drivers/net/mlx4/main.c | 2 + drivers/net/mlx4/mr.c | 23 +++++++++--- include/linux/mlx4/device.h | 10 +++++ include/linux/mlx4/qp.h | 16 ++++++-- 11 files changed, 221 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index 299f20832ab6..0b191a4842ce 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -637,6 +637,7 @@ repoll: case MLX4_OPCODE_SEND_IMM: wc->wc_flags |= IB_WC_WITH_IMM; case MLX4_OPCODE_SEND: + case MLX4_OPCODE_SEND_INVAL: wc->opcode = IB_WC_SEND; break; case MLX4_OPCODE_RDMA_READ: @@ -657,6 +658,12 @@ repoll: case MLX4_OPCODE_LSO: wc->opcode = IB_WC_LSO; break; + case MLX4_OPCODE_FMR: + wc->opcode = IB_WC_FAST_REG_MR; + break; + case MLX4_OPCODE_LOCAL_INVAL: + wc->opcode = IB_WC_LOCAL_INV; + break; } } else { wc->byte_len = be32_to_cpu(cqe->byte_cnt); @@ -667,6 +674,11 @@ repoll: wc->wc_flags = IB_WC_WITH_IMM; wc->ex.imm_data = cqe->immed_rss_invalid; break; + case MLX4_RECV_OPCODE_SEND_INVAL: + wc->opcode = IB_WC_RECV; + wc->wc_flags = IB_WC_WITH_INVALIDATE; + wc->ex.invalidate_rkey = be32_to_cpu(cqe->immed_rss_invalid); + break; case MLX4_RECV_OPCODE_SEND: wc->opcode = IB_WC_RECV; wc->wc_flags = 0; diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index bcf50648fa18..38d6907ab521 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -104,6 +104,12 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; if (dev->dev->caps.max_gso_sz) props->device_cap_flags |= IB_DEVICE_UD_TSO; + if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) + props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; + if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && + (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && + (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) + props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 0xffffff; @@ -127,6 +133,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; props->max_srq_sge = dev->dev->caps.max_srq_sge; + props->max_fast_reg_page_list_len = PAGE_SIZE / sizeof (u64); props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? IB_ATOMIC_HCA : IB_ATOMIC_NONE; @@ -565,6 +572,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); ibdev->ib_dev.owner = THIS_MODULE; ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; + ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports; ibdev->ib_dev.num_comp_vectors = 1; ibdev->ib_dev.dma_device = &dev->pdev->dev; @@ -627,6 +635,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; + ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; + ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; + ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; ibdev->ib_dev.process_mad = mlx4_ib_process_mad; diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index c4cf5b69eefa..d26a91317d4d 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -83,6 +83,11 @@ struct mlx4_ib_mr { struct ib_umem *umem; }; +struct mlx4_ib_fast_reg_page_list { + struct ib_fast_reg_page_list ibfrpl; + dma_addr_t map; +}; + struct mlx4_ib_fmr { struct ib_fmr ibfmr; struct mlx4_fmr mfmr; @@ -199,6 +204,11 @@ static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr) return container_of(ibmr, struct mlx4_ib_mr, ibmr); } +static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl) +{ + return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl); +} + static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr) { return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr); @@ -239,6 +249,11 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt_addr, int access_flags, struct ib_udata *udata); int mlx4_ib_dereg_mr(struct ib_mr *mr); +struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd, + int max_page_list_len); +struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev, + int page_list_len); +void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list); int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 68e92485fc76..db2086faa4ed 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -183,6 +183,76 @@ int mlx4_ib_dereg_mr(struct ib_mr *ibmr) return 0; } +struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd, + int max_page_list_len) +{ + struct mlx4_ib_dev *dev = to_mdev(pd->device); + struct mlx4_ib_mr *mr; + int err; + + mr = kmalloc(sizeof *mr, GFP_KERNEL); + if (!mr) + return ERR_PTR(-ENOMEM); + + err = mlx4_mr_alloc(dev->dev, to_mpd(pd)->pdn, 0, 0, 0, + max_page_list_len, 0, &mr->mmr); + if (err) + goto err_free; + + err = mlx4_mr_enable(dev->dev, &mr->mmr); + if (err) + goto err_mr; + + return &mr->ibmr; + +err_mr: + mlx4_mr_free(dev->dev, &mr->mmr); + +err_free: + kfree(mr); + return ERR_PTR(err); +} + +struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev, + int page_list_len) +{ + struct mlx4_ib_dev *dev = to_mdev(ibdev); + struct mlx4_ib_fast_reg_page_list *mfrpl; + int size = page_list_len * sizeof (u64); + + if (size > PAGE_SIZE) + return ERR_PTR(-EINVAL); + + mfrpl = kmalloc(sizeof *mfrpl, GFP_KERNEL); + if (!mfrpl) + return ERR_PTR(-ENOMEM); + + mfrpl->ibfrpl.page_list = dma_alloc_coherent(&dev->dev->pdev->dev, + size, &mfrpl->map, + GFP_KERNEL); + if (!mfrpl->ibfrpl.page_list) + goto err_free; + + WARN_ON(mfrpl->map & 0x3f); + + return &mfrpl->ibfrpl; + +err_free: + kfree(mfrpl); + return ERR_PTR(-ENOMEM); +} + +void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list) +{ + struct mlx4_ib_dev *dev = to_mdev(page_list->device); + struct mlx4_ib_fast_reg_page_list *mfrpl = to_mfrpl(page_list); + int size = page_list->max_page_list_len * sizeof (u64); + + dma_free_coherent(&dev->dev->pdev->dev, size, page_list->page_list, + mfrpl->map); + kfree(mfrpl); +} + struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int acc, struct ib_fmr_attr *fmr_attr) { diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index bda0859a5ac5..02a99bc4442e 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -78,6 +78,9 @@ static const __be32 mlx4_ib_opcode[] = { [IB_WR_RDMA_READ] = __constant_cpu_to_be32(MLX4_OPCODE_RDMA_READ), [IB_WR_ATOMIC_CMP_AND_SWP] = __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_CS), [IB_WR_ATOMIC_FETCH_AND_ADD] = __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_FA), + [IB_WR_SEND_WITH_INV] = __constant_cpu_to_be32(MLX4_OPCODE_SEND_INVAL), + [IB_WR_LOCAL_INV] = __constant_cpu_to_be32(MLX4_OPCODE_LOCAL_INVAL), + [IB_WR_FAST_REG_MR] = __constant_cpu_to_be32(MLX4_OPCODE_FMR), }; static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp) @@ -976,6 +979,10 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, context->pd = cpu_to_be32(to_mpd(ibqp->pd)->pdn); context->params1 = cpu_to_be32(MLX4_IB_ACK_REQ_FREQ << 28); + /* Set "fast registration enabled" for all kernel QPs */ + if (!qp->ibqp.uobject) + context->params1 |= cpu_to_be32(1 << 11); + if (attr_mask & IB_QP_RNR_RETRY) { context->params1 |= cpu_to_be32(attr->rnr_retry << 13); optpar |= MLX4_QP_OPTPAR_RNR_RETRY; @@ -1322,6 +1329,38 @@ static int mlx4_wq_overflow(struct mlx4_ib_wq *wq, int nreq, struct ib_cq *ib_cq return cur + nreq >= wq->max_post; } +static __be32 convert_access(int acc) +{ + return (acc & IB_ACCESS_REMOTE_ATOMIC ? cpu_to_be32(MLX4_WQE_FMR_PERM_ATOMIC) : 0) | + (acc & IB_ACCESS_REMOTE_WRITE ? cpu_to_be32(MLX4_WQE_FMR_PERM_REMOTE_WRITE) : 0) | + (acc & IB_ACCESS_REMOTE_READ ? cpu_to_be32(MLX4_WQE_FMR_PERM_REMOTE_READ) : 0) | + (acc & IB_ACCESS_LOCAL_WRITE ? cpu_to_be32(MLX4_WQE_FMR_PERM_LOCAL_WRITE) : 0) | + cpu_to_be32(MLX4_WQE_FMR_PERM_LOCAL_READ); +} + +static void set_fmr_seg(struct mlx4_wqe_fmr_seg *fseg, struct ib_send_wr *wr) +{ + struct mlx4_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list); + + fseg->flags = convert_access(wr->wr.fast_reg.access_flags); + fseg->mem_key = cpu_to_be32(wr->wr.fast_reg.rkey); + fseg->buf_list = cpu_to_be64(mfrpl->map); + fseg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); + fseg->reg_len = cpu_to_be64(wr->wr.fast_reg.length); + fseg->offset = 0; /* XXX -- is this just for ZBVA? */ + fseg->page_size = cpu_to_be32(wr->wr.fast_reg.page_shift); + fseg->reserved[0] = 0; + fseg->reserved[1] = 0; +} + +static void set_local_inv_seg(struct mlx4_wqe_local_inval_seg *iseg, u32 rkey) +{ + iseg->flags = 0; + iseg->mem_key = cpu_to_be32(rkey); + iseg->guest_id = 0; + iseg->pa = 0; +} + static __always_inline void set_raddr_seg(struct mlx4_wqe_raddr_seg *rseg, u64 remote_addr, u32 rkey) { @@ -1423,6 +1462,21 @@ static int build_lso_seg(struct mlx4_wqe_lso_seg *wqe, struct ib_send_wr *wr, return 0; } +static __be32 send_ieth(struct ib_send_wr *wr) +{ + switch (wr->opcode) { + case IB_WR_SEND_WITH_IMM: + case IB_WR_RDMA_WRITE_WITH_IMM: + return wr->ex.imm_data; + + case IB_WR_SEND_WITH_INV: + return cpu_to_be32(wr->ex.invalidate_rkey); + + default: + return 0; + } +} + int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { @@ -1469,11 +1523,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, MLX4_WQE_CTRL_TCP_UDP_CSUM) : 0) | qp->sq_signal_bits; - if (wr->opcode == IB_WR_SEND_WITH_IMM || - wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) - ctrl->imm = wr->ex.imm_data; - else - ctrl->imm = 0; + ctrl->imm = send_ieth(wr); wqe += sizeof *ctrl; size = sizeof *ctrl / 16; @@ -1505,6 +1555,18 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, size += sizeof (struct mlx4_wqe_raddr_seg) / 16; break; + case IB_WR_LOCAL_INV: + set_local_inv_seg(wqe, wr->ex.invalidate_rkey); + wqe += sizeof (struct mlx4_wqe_local_inval_seg); + size += sizeof (struct mlx4_wqe_local_inval_seg) / 16; + break; + + case IB_WR_FAST_REG_MR: + set_fmr_seg(wqe, wr); + wqe += sizeof (struct mlx4_wqe_fmr_seg); + size += sizeof (struct mlx4_wqe_fmr_seg) / 16; + break; + default: /* No extra segments required for sends */ break; diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index 0851ebdddfd4..57278224ba1e 100644 --- a/drivers/net/mlx4/fw.c +++ b/drivers/net/mlx4/fw.c @@ -202,7 +202,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) #define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e #define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90 #define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92 -#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x97 +#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0 @@ -377,12 +377,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) } } - if (dev_cap->bmme_flags & 1) - mlx4_dbg(dev, "Base MM extensions: yes " - "(flags %d, rsvd L_Key %08x)\n", - dev_cap->bmme_flags, dev_cap->reserved_lkey); - else - mlx4_dbg(dev, "Base MM extensions: no\n"); + mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n", + dev_cap->bmme_flags, dev_cap->reserved_lkey); /* * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h index a0e046c149b7..fbf0e22be122 100644 --- a/drivers/net/mlx4/fw.h +++ b/drivers/net/mlx4/fw.h @@ -98,7 +98,7 @@ struct mlx4_dev_cap { int cmpt_entry_sz; int mtt_entry_sz; int resize_srq; - u8 bmme_flags; + u32 bmme_flags; u32 reserved_lkey; u64 max_icm_sz; int max_gso_sz; diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index d3736013fe9b..8e1d24cda1b0 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -158,6 +158,8 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev->caps.max_msg_sz = dev_cap->max_msg_sz; dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1); dev->caps.flags = dev_cap->flags; + dev->caps.bmme_flags = dev_cap->bmme_flags; + dev->caps.reserved_lkey = dev_cap->reserved_lkey; dev->caps.stat_rate_support = dev_cap->stat_rate_support; dev->caps.max_gso_sz = dev_cap->max_gso_sz; diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c index b3ea93b98689..a3c04c5f12c2 100644 --- a/drivers/net/mlx4/mr.c +++ b/drivers/net/mlx4/mr.c @@ -47,7 +47,7 @@ struct mlx4_mpt_entry { __be32 flags; __be32 qpn; __be32 key; - __be32 pd; + __be32 pd_flags; __be64 start; __be64 length; __be32 lkey; @@ -61,11 +61,15 @@ struct mlx4_mpt_entry { } __attribute__((packed)); #define MLX4_MPT_FLAG_SW_OWNS (0xfUL << 28) +#define MLX4_MPT_FLAG_FREE (0x3UL << 28) #define MLX4_MPT_FLAG_MIO (1 << 17) #define MLX4_MPT_FLAG_BIND_ENABLE (1 << 15) #define MLX4_MPT_FLAG_PHYSICAL (1 << 9) #define MLX4_MPT_FLAG_REGION (1 << 8) +#define MLX4_MPT_PD_FLAG_FAST_REG (1 << 26) +#define MLX4_MPT_PD_FLAG_EN_INV (3 << 24) + #define MLX4_MTT_FLAG_PRESENT 1 #define MLX4_MPT_STATUS_SW 0xF0 @@ -324,21 +328,30 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr) memset(mpt_entry, 0, sizeof *mpt_entry); - mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS | - MLX4_MPT_FLAG_MIO | + mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_MIO | MLX4_MPT_FLAG_REGION | mr->access); mpt_entry->key = cpu_to_be32(key_to_hw_index(mr->key)); - mpt_entry->pd = cpu_to_be32(mr->pd); + mpt_entry->pd_flags = cpu_to_be32(mr->pd | MLX4_MPT_PD_FLAG_EN_INV); mpt_entry->start = cpu_to_be64(mr->iova); mpt_entry->length = cpu_to_be64(mr->size); mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift); + if (mr->mtt.order < 0) { mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL); mpt_entry->mtt_seg = 0; - } else + } else { mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt)); + } + + if (mr->mtt.order >= 0 && mr->mtt.page_shift == 0) { + /* fast register MR in free state */ + mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_FREE); + mpt_entry->pd_flags |= cpu_to_be32(MLX4_MPT_PD_FLAG_FAST_REG); + } else { + mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS); + } err = mlx4_SW2HW_MPT(dev, mailbox, key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1)); diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 81b3dd5206e0..655ea0d1ee14 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -68,6 +68,14 @@ enum { MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21 }; +enum { + MLX4_BMME_FLAG_LOCAL_INV = 1 << 6, + MLX4_BMME_FLAG_REMOTE_INV = 1 << 7, + MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9, + MLX4_BMME_FLAG_RESERVED_LKEY = 1 << 10, + MLX4_BMME_FLAG_FAST_REG_WR = 1 << 11, +}; + enum mlx4_event { MLX4_EVENT_TYPE_COMP = 0x00, MLX4_EVENT_TYPE_PATH_MIG = 0x01, @@ -184,6 +192,8 @@ struct mlx4_caps { u32 max_msg_sz; u32 page_size_cap; u32 flags; + u32 bmme_flags; + u32 reserved_lkey; u16 stat_rate_support; u8 port_width_cap[MLX4_MAX_PORTS + 1]; int max_gso_sz; diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h index f02e9ed36cfa..e27082cd650e 100644 --- a/include/linux/mlx4/qp.h +++ b/include/linux/mlx4/qp.h @@ -233,6 +233,14 @@ struct mlx4_wqe_bind_seg { __be64 length; }; +enum { + MLX4_WQE_FMR_PERM_LOCAL_READ = 1 << 27, + MLX4_WQE_FMR_PERM_LOCAL_WRITE = 1 << 28, + MLX4_WQE_FMR_PERM_REMOTE_READ = 1 << 29, + MLX4_WQE_FMR_PERM_REMOTE_WRITE = 1 << 30, + MLX4_WQE_FMR_PERM_ATOMIC = 1 << 31 +}; + struct mlx4_wqe_fmr_seg { __be32 flags; __be32 mem_key; @@ -255,11 +263,11 @@ struct mlx4_wqe_fmr_ext_seg { }; struct mlx4_wqe_local_inval_seg { - u8 flags; - u8 reserved1[3]; + __be32 flags; + u32 reserved1; __be32 mem_key; - u8 reserved2[3]; - u8 guest_id; + u32 reserved2[2]; + __be32 guest_id; __be64 pa; }; -- cgit v1.2.3 From 5cbad0ebf45c5417104b383dc0e34f64fa7f2473 Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Wed, 20 Feb 2008 13:33:40 -0600 Subject: kgdb: support for ARCH=arm This patch adds the ARCH=arm specific a kgdb backend, originally written by Deepak Saxena and George Davis . Geoff Levand , Nicolas Pitre, Manish Lachwani, and Jason Wessel have contributed various fixups here as well. The KGDB patch makes one change to the core ARM architecture such that the traps are initialized early for use with the debugger or other subsystems. [ mingo@elte.hu: small cleanups. ] [ ben-linux@fluff.org: fixed early_trap_init ] Signed-off-by: Jason Wessel Acked-by: Deepak Saxena --- arch/arm/Kconfig | 1 + arch/arm/kernel/Makefile | 1 + arch/arm/kernel/kgdb.c | 201 +++++++++++++++++++++++++++++++++++++++++++++++ arch/arm/kernel/setup.c | 2 + arch/arm/kernel/traps.c | 5 ++ include/asm-arm/kgdb.h | 104 ++++++++++++++++++++++++ include/asm-arm/traps.h | 2 + 7 files changed, 316 insertions(+) create mode 100644 arch/arm/kernel/kgdb.c create mode 100644 include/asm-arm/kgdb.h (limited to 'include') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c7ad324ddf2c..d048f6887d0b 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -12,6 +12,7 @@ config ARM select RTC_LIB select SYS_SUPPORTS_APM_EMULATION select HAVE_OPROFILE + select HAVE_ARCH_KGDB select HAVE_KPROBES if (!XIP_KERNEL) select HAVE_KRETPROBES if (HAVE_KPROBES) select HAVE_FTRACE if (!XIP_KERNEL) diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index eb9092ca8008..1d296fc8494e 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_KPROBES) += kprobes.o kprobes-decode.o obj-$(CONFIG_ATAGS_PROC) += atags.o obj-$(CONFIG_OABI_COMPAT) += sys_oabi-compat.o obj-$(CONFIG_ARM_THUMBEE) += thumbee.o +obj-$(CONFIG_KGDB) += kgdb.o obj-$(CONFIG_CRUNCH) += crunch.o crunch-bits.o AFLAGS_crunch-bits.o := -Wa,-mcpu=ep9312 diff --git a/arch/arm/kernel/kgdb.c b/arch/arm/kernel/kgdb.c new file mode 100644 index 000000000000..aaffaecffcd1 --- /dev/null +++ b/arch/arm/kernel/kgdb.c @@ -0,0 +1,201 @@ +/* + * arch/arm/kernel/kgdb.c + * + * ARM KGDB support + * + * Copyright (c) 2002-2004 MontaVista Software, Inc + * Copyright (c) 2008 Wind River Systems, Inc. + * + * Authors: George Davis + * Deepak Saxena + */ +#include +#include + +/* Make a local copy of the registers passed into the handler (bletch) */ +void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *kernel_regs) +{ + int regno; + + /* Initialize all to zero. */ + for (regno = 0; regno < GDB_MAX_REGS; regno++) + gdb_regs[regno] = 0; + + gdb_regs[_R0] = kernel_regs->ARM_r0; + gdb_regs[_R1] = kernel_regs->ARM_r1; + gdb_regs[_R2] = kernel_regs->ARM_r2; + gdb_regs[_R3] = kernel_regs->ARM_r3; + gdb_regs[_R4] = kernel_regs->ARM_r4; + gdb_regs[_R5] = kernel_regs->ARM_r5; + gdb_regs[_R6] = kernel_regs->ARM_r6; + gdb_regs[_R7] = kernel_regs->ARM_r7; + gdb_regs[_R8] = kernel_regs->ARM_r8; + gdb_regs[_R9] = kernel_regs->ARM_r9; + gdb_regs[_R10] = kernel_regs->ARM_r10; + gdb_regs[_FP] = kernel_regs->ARM_fp; + gdb_regs[_IP] = kernel_regs->ARM_ip; + gdb_regs[_SPT] = kernel_regs->ARM_sp; + gdb_regs[_LR] = kernel_regs->ARM_lr; + gdb_regs[_PC] = kernel_regs->ARM_pc; + gdb_regs[_CPSR] = kernel_regs->ARM_cpsr; +} + +/* Copy local gdb registers back to kgdb regs, for later copy to kernel */ +void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *kernel_regs) +{ + kernel_regs->ARM_r0 = gdb_regs[_R0]; + kernel_regs->ARM_r1 = gdb_regs[_R1]; + kernel_regs->ARM_r2 = gdb_regs[_R2]; + kernel_regs->ARM_r3 = gdb_regs[_R3]; + kernel_regs->ARM_r4 = gdb_regs[_R4]; + kernel_regs->ARM_r5 = gdb_regs[_R5]; + kernel_regs->ARM_r6 = gdb_regs[_R6]; + kernel_regs->ARM_r7 = gdb_regs[_R7]; + kernel_regs->ARM_r8 = gdb_regs[_R8]; + kernel_regs->ARM_r9 = gdb_regs[_R9]; + kernel_regs->ARM_r10 = gdb_regs[_R10]; + kernel_regs->ARM_fp = gdb_regs[_FP]; + kernel_regs->ARM_ip = gdb_regs[_IP]; + kernel_regs->ARM_sp = gdb_regs[_SPT]; + kernel_regs->ARM_lr = gdb_regs[_LR]; + kernel_regs->ARM_pc = gdb_regs[_PC]; + kernel_regs->ARM_cpsr = gdb_regs[_CPSR]; +} + +void +sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *task) +{ + struct pt_regs *thread_regs; + int regno; + + /* Just making sure... */ + if (task == NULL) + return; + + /* Initialize to zero */ + for (regno = 0; regno < GDB_MAX_REGS; regno++) + gdb_regs[regno] = 0; + + /* Otherwise, we have only some registers from switch_to() */ + thread_regs = task_pt_regs(task); + gdb_regs[_R0] = thread_regs->ARM_r0; + gdb_regs[_R1] = thread_regs->ARM_r1; + gdb_regs[_R2] = thread_regs->ARM_r2; + gdb_regs[_R3] = thread_regs->ARM_r3; + gdb_regs[_R4] = thread_regs->ARM_r4; + gdb_regs[_R5] = thread_regs->ARM_r5; + gdb_regs[_R6] = thread_regs->ARM_r6; + gdb_regs[_R7] = thread_regs->ARM_r7; + gdb_regs[_R8] = thread_regs->ARM_r8; + gdb_regs[_R9] = thread_regs->ARM_r9; + gdb_regs[_R10] = thread_regs->ARM_r10; + gdb_regs[_FP] = thread_regs->ARM_fp; + gdb_regs[_IP] = thread_regs->ARM_ip; + gdb_regs[_SPT] = thread_regs->ARM_sp; + gdb_regs[_LR] = thread_regs->ARM_lr; + gdb_regs[_PC] = thread_regs->ARM_pc; + gdb_regs[_CPSR] = thread_regs->ARM_cpsr; +} + +static int compiled_break; + +int kgdb_arch_handle_exception(int exception_vector, int signo, + int err_code, char *remcom_in_buffer, + char *remcom_out_buffer, + struct pt_regs *linux_regs) +{ + unsigned long addr; + char *ptr; + + switch (remcom_in_buffer[0]) { + case 'D': + case 'k': + case 'c': + kgdb_contthread = NULL; + + /* + * Try to read optional parameter, pc unchanged if no parm. + * If this was a compiled breakpoint, we need to move + * to the next instruction or we will just breakpoint + * over and over again. + */ + ptr = &remcom_in_buffer[1]; + if (kgdb_hex2long(&ptr, &addr)) + linux_regs->ARM_pc = addr; + else if (compiled_break == 1) + linux_regs->ARM_pc += 4; + + compiled_break = 0; + + return 0; + } + + return -1; +} + +static int kgdb_brk_fn(struct pt_regs *regs, unsigned int instr) +{ + kgdb_handle_exception(1, SIGTRAP, 0, regs); + + return 0; +} + +static int kgdb_compiled_brk_fn(struct pt_regs *regs, unsigned int instr) +{ + compiled_break = 1; + kgdb_handle_exception(1, SIGTRAP, 0, regs); + + return 0; +} + +static struct undef_hook kgdb_brkpt_hook = { + .instr_mask = 0xffffffff, + .instr_val = KGDB_BREAKINST, + .fn = kgdb_brk_fn +}; + +static struct undef_hook kgdb_compiled_brkpt_hook = { + .instr_mask = 0xffffffff, + .instr_val = KGDB_COMPILED_BREAK, + .fn = kgdb_compiled_brk_fn +}; + +/** + * kgdb_arch_init - Perform any architecture specific initalization. + * + * This function will handle the initalization of any architecture + * specific callbacks. + */ +int kgdb_arch_init(void) +{ + register_undef_hook(&kgdb_brkpt_hook); + register_undef_hook(&kgdb_compiled_brkpt_hook); + + return 0; +} + +/** + * kgdb_arch_exit - Perform any architecture specific uninitalization. + * + * This function will handle the uninitalization of any architecture + * specific callbacks, for dynamic registration and unregistration. + */ +void kgdb_arch_exit(void) +{ + unregister_undef_hook(&kgdb_brkpt_hook); + unregister_undef_hook(&kgdb_compiled_brkpt_hook); +} + +/* + * Register our undef instruction hooks with ARM undef core. + * We regsiter a hook specifically looking for the KGB break inst + * and we handle the normal undef case within the do_undefinstr + * handler. + */ +struct kgdb_arch arch_kgdb_ops = { +#ifndef __ARMEB__ + .gdb_bpt_instr = {0xfe, 0xde, 0xff, 0xe7} +#else /* ! __ARMEB__ */ + .gdb_bpt_instr = {0xe7, 0xff, 0xde, 0xfe} +#endif +}; diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index b7b0720bc1bb..38f0e7940a13 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -36,6 +36,7 @@ #include #include #include +#include #include "compat.h" #include "atags.h" @@ -853,6 +854,7 @@ void __init setup_arch(char **cmdline_p) conswitchp = &dummy_con; #endif #endif + early_trap_init(); } diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 5595fdd75e82..7277aef83098 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -707,6 +707,11 @@ void abort(void) EXPORT_SYMBOL(abort); void __init trap_init(void) +{ + return; +} + +void __init early_trap_init(void) { unsigned long vectors = CONFIG_VECTORS_BASE; extern char __stubs_start[], __stubs_end[]; diff --git a/include/asm-arm/kgdb.h b/include/asm-arm/kgdb.h new file mode 100644 index 000000000000..67af4b841984 --- /dev/null +++ b/include/asm-arm/kgdb.h @@ -0,0 +1,104 @@ +/* + * ARM KGDB support + * + * Author: Deepak Saxena + * + * Copyright (C) 2002 MontaVista Software Inc. + * + */ + +#ifndef __ARM_KGDB_H__ +#define __ARM_KGDB_H__ + +#include + +/* + * GDB assumes that we're a user process being debugged, so + * it will send us an SWI command to write into memory as the + * debug trap. When an SWI occurs, the next instruction addr is + * placed into R14_svc before jumping to the vector trap. + * This doesn't work for kernel debugging as we are already in SVC + * we would loose the kernel's LR, which is a bad thing. This + * is bad thing. + * + * By doing this as an undefined instruction trap, we force a mode + * switch from SVC to UND mode, allowing us to save full kernel state. + * + * We also define a KGDB_COMPILED_BREAK which can be used to compile + * in breakpoints. This is important for things like sysrq-G and for + * the initial breakpoint from trap_init(). + * + * Note to ARM HW designers: Add real trap support like SH && PPC to + * make our lives much much simpler. :) + */ +#define BREAK_INSTR_SIZE 4 +#define GDB_BREAKINST 0xef9f0001 +#define KGDB_BREAKINST 0xe7ffdefe +#define KGDB_COMPILED_BREAK 0xe7ffdeff +#define CACHE_FLUSH_IS_SAFE 1 + +#ifndef __ASSEMBLY__ + +static inline void arch_kgdb_breakpoint(void) +{ + asm(".word 0xe7ffdeff"); +} + +extern void kgdb_handle_bus_error(void); +extern int kgdb_fault_expected; + +#endif /* !__ASSEMBLY__ */ + +/* + * From Kevin Hilman: + * + * gdb is expecting the following registers layout. + * + * r0-r15: 1 long word each + * f0-f7: unused, 3 long words each !! + * fps: unused, 1 long word + * cpsr: 1 long word + * + * Even though f0-f7 and fps are not used, they need to be + * present in the registers sent for correct processing in + * the host-side gdb. + * + * In particular, it is crucial that CPSR is in the right place, + * otherwise gdb will not be able to correctly interpret stepping over + * conditional branches. + */ +#define _GP_REGS 16 +#define _FP_REGS 8 +#define _EXTRA_REGS 2 +#define GDB_MAX_REGS (_GP_REGS + (_FP_REGS * 3) + _EXTRA_REGS) + +#define KGDB_MAX_NO_CPUS 1 +#define BUFMAX 400 +#define NUMREGBYTES (GDB_MAX_REGS << 2) +#define NUMCRITREGBYTES (32 << 2) + +#define _R0 0 +#define _R1 1 +#define _R2 2 +#define _R3 3 +#define _R4 4 +#define _R5 5 +#define _R6 6 +#define _R7 7 +#define _R8 8 +#define _R9 9 +#define _R10 10 +#define _FP 11 +#define _IP 12 +#define _SPT 13 +#define _LR 14 +#define _PC 15 +#define _CPSR (GDB_MAX_REGS - 1) + +/* + * So that we can denote the end of a frame for tracing, + * in the simple case: + */ +#define CFI_END_FRAME(func) __CFI_END_FRAME(_PC, _SPT, func) + +#endif /* __ASM_KGDB_H__ */ diff --git a/include/asm-arm/traps.h b/include/asm-arm/traps.h index f1541afcf85c..aa399aec568e 100644 --- a/include/asm-arm/traps.h +++ b/include/asm-arm/traps.h @@ -24,4 +24,6 @@ static inline int in_exception_text(unsigned long ptr) ptr < (unsigned long)&__exception_text_end; } +extern void __init early_trap_init(void); + #endif -- cgit v1.2.3 From 17ce452f7ea3df760b7f9f42453b6f6acd765217 Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Wed, 23 Jul 2008 11:30:15 -0500 Subject: kgdb, powerpc: arch specific powerpc kgdb support This patch removes the old kgdb reminants from ARCH=powerpc and implements the new style arch specific stub for the common kgdb core interface. It is possible to have xmon and kgdb in the same kernel, but you cannot use both at the same time because there is only one set of debug hooks. The arch specific kgdb implementation saves the previous state of the debug hooks and restores them if you unconfigure the kgdb I/O driver. Kgdb should have no impact on a kernel that has no kgdb I/O driver configured. Signed-off-by: Jason Wessel --- arch/powerpc/Kconfig | 1 + arch/powerpc/Kconfig.debug | 50 +--- arch/powerpc/kernel/Makefile | 1 + arch/powerpc/kernel/kgdb.c | 410 ++++++++++++++++++++++++++++++++ arch/powerpc/kernel/setup_32.c | 16 -- arch/powerpc/platforms/powermac/setup.c | 6 - include/asm-powerpc/kgdb.h | 92 +++---- 7 files changed, 468 insertions(+), 108 deletions(-) create mode 100644 arch/powerpc/kernel/kgdb.c (limited to 'include') diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 4c22242b396f..737ebf9d12bb 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -112,6 +112,7 @@ config PPC select HAVE_FTRACE select HAVE_IDE select HAVE_KPROBES + select HAVE_ARCH_KGDB select HAVE_KRETPROBES select HAVE_LMB select HAVE_DMA_ATTRS if PPC64 diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 2840ab69ef4e..8c8aadbe9563 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -41,22 +41,6 @@ config HCALL_STATS This option will add a small amount of overhead to all hypervisor calls. -config DEBUGGER - bool "Enable debugger hooks" - depends on DEBUG_KERNEL - help - Include in-kernel hooks for kernel debuggers. Unless you are - intending to debug the kernel, say N here. - -config KGDB - bool "Include kgdb kernel debugger" - depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx) - select DEBUG_INFO - help - Include in-kernel hooks for kgdb, the Linux kernel source level - debugger. See for more information. - Unless you are intending to debug the kernel, say N here. - config CODE_PATCHING_SELFTEST bool "Run self-tests of the code-patching code." depends on DEBUG_KERNEL @@ -67,36 +51,9 @@ config FTR_FIXUP_SELFTEST depends on DEBUG_KERNEL default n -choice - prompt "Serial Port" - depends on KGDB - default KGDB_TTYS1 - -config KGDB_TTYS0 - bool "ttyS0" - -config KGDB_TTYS1 - bool "ttyS1" - -config KGDB_TTYS2 - bool "ttyS2" - -config KGDB_TTYS3 - bool "ttyS3" - -endchoice - -config KGDB_CONSOLE - bool "Enable serial console thru kgdb port" - depends on KGDB && 8xx || CPM2 - help - If you enable this, all serial console messages will be sent - over the gdb stub. - If unsure, say N. - config XMON bool "Include xmon kernel debugger" - depends on DEBUGGER + depends on DEBUG_KERNEL help Include in-kernel hooks for the xmon kernel monitor/debugger. Unless you are intending to debug the kernel, say N here. @@ -126,6 +83,11 @@ config XMON_DISASSEMBLY to say Y here, unless you're building for a memory-constrained system. +config DEBUGGER + bool + depends on KGDB || XMON + default y + config IRQSTACKS bool "Use separate kernel stacks when processing interrupts" help diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index bf0b1fd0ec34..1a4094704b1f 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -74,6 +74,7 @@ obj-y += time.o prom.o traps.o setup-common.o \ misc_$(CONFIG_WORD_SIZE).o obj-$(CONFIG_PPC32) += entry_32.o setup_32.o obj-$(CONFIG_PPC64) += dma_64.o iommu.o +obj-$(CONFIG_KGDB) += kgdb.o obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o obj-$(CONFIG_MODULES) += ppc_ksyms.o obj-$(CONFIG_BOOTX_TEXT) += btext.o diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c new file mode 100644 index 000000000000..b4fdf2f2743c --- /dev/null +++ b/arch/powerpc/kernel/kgdb.c @@ -0,0 +1,410 @@ +/* + * PowerPC backend to the KGDB stub. + * + * 1998 (c) Michael AK Tesch (tesch@cs.wisc.edu) + * Copyright (C) 2003 Timesys Corporation. + * Copyright (C) 2004-2006 MontaVista Software, Inc. + * PPC64 Mods (C) 2005 Frank Rowand (frowand@mvista.com) + * PPC32 support restored by Vitaly Wool and + * Sergei Shtylyov + * Copyright (C) 2007-2008 Wind River Systems, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program as licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * This table contains the mapping between PowerPC hardware trap types, and + * signals, which are primarily what GDB understands. GDB and the kernel + * don't always agree on values, so we use constants taken from gdb-6.2. + */ +static struct hard_trap_info +{ + unsigned int tt; /* Trap type code for powerpc */ + unsigned char signo; /* Signal that we map this trap into */ +} hard_trap_info[] = { + { 0x0100, 0x02 /* SIGINT */ }, /* system reset */ + { 0x0200, 0x0b /* SIGSEGV */ }, /* machine check */ + { 0x0300, 0x0b /* SIGSEGV */ }, /* data access */ + { 0x0400, 0x0b /* SIGSEGV */ }, /* instruction access */ + { 0x0500, 0x02 /* SIGINT */ }, /* external interrupt */ + { 0x0600, 0x0a /* SIGBUS */ }, /* alignment */ + { 0x0700, 0x05 /* SIGTRAP */ }, /* program check */ + { 0x0800, 0x08 /* SIGFPE */ }, /* fp unavailable */ + { 0x0900, 0x0e /* SIGALRM */ }, /* decrementer */ + { 0x0c00, 0x14 /* SIGCHLD */ }, /* system call */ +#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) + { 0x2002, 0x05 /* SIGTRAP */ }, /* debug */ +#if defined(CONFIG_FSL_BOOKE) + { 0x2010, 0x08 /* SIGFPE */ }, /* spe unavailable */ + { 0x2020, 0x08 /* SIGFPE */ }, /* spe unavailable */ + { 0x2030, 0x08 /* SIGFPE */ }, /* spe fp data */ + { 0x2040, 0x08 /* SIGFPE */ }, /* spe fp data */ + { 0x2050, 0x08 /* SIGFPE */ }, /* spe fp round */ + { 0x2060, 0x0e /* SIGILL */ }, /* performace monitor */ + { 0x2900, 0x08 /* SIGFPE */ }, /* apu unavailable */ + { 0x3100, 0x0e /* SIGALRM */ }, /* fixed interval timer */ + { 0x3200, 0x02 /* SIGINT */ }, /* watchdog */ +#else /* ! CONFIG_FSL_BOOKE */ + { 0x1000, 0x0e /* SIGALRM */ }, /* prog interval timer */ + { 0x1010, 0x0e /* SIGALRM */ }, /* fixed interval timer */ + { 0x1020, 0x02 /* SIGINT */ }, /* watchdog */ + { 0x2010, 0x08 /* SIGFPE */ }, /* fp unavailable */ + { 0x2020, 0x08 /* SIGFPE */ }, /* ap unavailable */ +#endif +#else /* ! (defined(CONFIG_40x) || defined(CONFIG_BOOKE)) */ + { 0x0d00, 0x05 /* SIGTRAP */ }, /* single-step */ +#if defined(CONFIG_8xx) + { 0x1000, 0x04 /* SIGILL */ }, /* software emulation */ +#else /* ! CONFIG_8xx */ + { 0x0f00, 0x04 /* SIGILL */ }, /* performance monitor */ + { 0x0f20, 0x08 /* SIGFPE */ }, /* altivec unavailable */ + { 0x1300, 0x05 /* SIGTRAP */ }, /* instruction address break */ +#if defined(CONFIG_PPC64) + { 0x1200, 0x05 /* SIGILL */ }, /* system error */ + { 0x1500, 0x04 /* SIGILL */ }, /* soft patch */ + { 0x1600, 0x04 /* SIGILL */ }, /* maintenance */ + { 0x1700, 0x08 /* SIGFPE */ }, /* altivec assist */ + { 0x1800, 0x04 /* SIGILL */ }, /* thermal */ +#else /* ! CONFIG_PPC64 */ + { 0x1400, 0x02 /* SIGINT */ }, /* SMI */ + { 0x1600, 0x08 /* SIGFPE */ }, /* altivec assist */ + { 0x1700, 0x04 /* SIGILL */ }, /* TAU */ + { 0x2000, 0x05 /* SIGTRAP */ }, /* run mode */ +#endif +#endif +#endif + { 0x0000, 0x00 } /* Must be last */ +}; + +static int computeSignal(unsigned int tt) +{ + struct hard_trap_info *ht; + + for (ht = hard_trap_info; ht->tt && ht->signo; ht++) + if (ht->tt == tt) + return ht->signo; + + return SIGHUP; /* default for things we don't know about */ +} + +static int kgdb_call_nmi_hook(struct pt_regs *regs) +{ + kgdb_nmicallback(raw_smp_processor_id(), regs); + return 0; +} + +#ifdef CONFIG_SMP +void kgdb_roundup_cpus(unsigned long flags) +{ + smp_send_debugger_break(MSG_ALL_BUT_SELF); +} +#endif + +/* KGDB functions to use existing PowerPC64 hooks. */ +static int kgdb_debugger(struct pt_regs *regs) +{ + return kgdb_handle_exception(0, computeSignal(TRAP(regs)), 0, regs); +} + +static int kgdb_handle_breakpoint(struct pt_regs *regs) +{ + if (user_mode(regs)) + return 0; + + if (kgdb_handle_exception(0, SIGTRAP, 0, regs) != 0) + return 0; + + if (*(u32 *) (regs->nip) == *(u32 *) (&arch_kgdb_ops.gdb_bpt_instr)) + regs->nip += 4; + + return 1; +} + +static int kgdb_singlestep(struct pt_regs *regs) +{ + struct thread_info *thread_info, *exception_thread_info; + + if (user_mode(regs)) + return 0; + + /* + * On Book E and perhaps other processsors, singlestep is handled on + * the critical exception stack. This causes current_thread_info() + * to fail, since it it locates the thread_info by masking off + * the low bits of the current stack pointer. We work around + * this issue by copying the thread_info from the kernel stack + * before calling kgdb_handle_exception, and copying it back + * afterwards. On most processors the copy is avoided since + * exception_thread_info == thread_info. + */ + thread_info = (struct thread_info *)(regs->gpr[1] & ~(THREAD_SIZE-1)); + exception_thread_info = current_thread_info(); + + if (thread_info != exception_thread_info) + memcpy(exception_thread_info, thread_info, sizeof *thread_info); + + kgdb_handle_exception(0, SIGTRAP, 0, regs); + + if (thread_info != exception_thread_info) + memcpy(thread_info, exception_thread_info, sizeof *thread_info); + + return 1; +} + +static int kgdb_iabr_match(struct pt_regs *regs) +{ + if (user_mode(regs)) + return 0; + + if (kgdb_handle_exception(0, computeSignal(TRAP(regs)), 0, regs) != 0) + return 0; + return 1; +} + +static int kgdb_dabr_match(struct pt_regs *regs) +{ + if (user_mode(regs)) + return 0; + + if (kgdb_handle_exception(0, computeSignal(TRAP(regs)), 0, regs) != 0) + return 0; + return 1; +} + +#define PACK64(ptr, src) do { *(ptr++) = (src); } while (0) + +#define PACK32(ptr, src) do { \ + u32 *ptr32; \ + ptr32 = (u32 *)ptr; \ + *(ptr32++) = (src); \ + ptr = (unsigned long *)ptr32; \ + } while (0) + + +void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) +{ + unsigned long *ptr = gdb_regs; + int reg; + + memset(gdb_regs, 0, NUMREGBYTES); + + for (reg = 0; reg < 32; reg++) + PACK64(ptr, regs->gpr[reg]); + +#ifdef CONFIG_FSL_BOOKE +#ifdef CONFIG_SPE + for (reg = 0; reg < 32; reg++) + PACK64(ptr, current->thread.evr[reg]); +#else + ptr += 32; +#endif +#else + /* fp registers not used by kernel, leave zero */ + ptr += 32 * 8 / sizeof(long); +#endif + + PACK64(ptr, regs->nip); + PACK64(ptr, regs->msr); + PACK32(ptr, regs->ccr); + PACK64(ptr, regs->link); + PACK64(ptr, regs->ctr); + PACK32(ptr, regs->xer); + + BUG_ON((unsigned long)ptr > + (unsigned long)(((void *)gdb_regs) + NUMREGBYTES)); +} + +void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) +{ + struct pt_regs *regs = (struct pt_regs *)(p->thread.ksp + + STACK_FRAME_OVERHEAD); + unsigned long *ptr = gdb_regs; + int reg; + + memset(gdb_regs, 0, NUMREGBYTES); + + /* Regs GPR0-2 */ + for (reg = 0; reg < 3; reg++) + PACK64(ptr, regs->gpr[reg]); + + /* Regs GPR3-13 are caller saved, not in regs->gpr[] */ + ptr += 11; + + /* Regs GPR14-31 */ + for (reg = 14; reg < 32; reg++) + PACK64(ptr, regs->gpr[reg]); + +#ifdef CONFIG_FSL_BOOKE +#ifdef CONFIG_SPE + for (reg = 0; reg < 32; reg++) + PACK64(ptr, p->thread.evr[reg]); +#else + ptr += 32; +#endif +#else + /* fp registers not used by kernel, leave zero */ + ptr += 32 * 8 / sizeof(long); +#endif + + PACK64(ptr, regs->nip); + PACK64(ptr, regs->msr); + PACK32(ptr, regs->ccr); + PACK64(ptr, regs->link); + PACK64(ptr, regs->ctr); + PACK32(ptr, regs->xer); + + BUG_ON((unsigned long)ptr > + (unsigned long)(((void *)gdb_regs) + NUMREGBYTES)); +} + +#define UNPACK64(dest, ptr) do { dest = *(ptr++); } while (0) + +#define UNPACK32(dest, ptr) do { \ + u32 *ptr32; \ + ptr32 = (u32 *)ptr; \ + dest = *(ptr32++); \ + ptr = (unsigned long *)ptr32; \ + } while (0) + +void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs) +{ + unsigned long *ptr = gdb_regs; + int reg; +#ifdef CONFIG_SPE + union { + u32 v32[2]; + u64 v64; + } acc; +#endif + + for (reg = 0; reg < 32; reg++) + UNPACK64(regs->gpr[reg], ptr); + +#ifdef CONFIG_FSL_BOOKE +#ifdef CONFIG_SPE + for (reg = 0; reg < 32; reg++) + UNPACK64(current->thread.evr[reg], ptr); +#else + ptr += 32; +#endif +#else + /* fp registers not used by kernel, leave zero */ + ptr += 32 * 8 / sizeof(int); +#endif + + UNPACK64(regs->nip, ptr); + UNPACK64(regs->msr, ptr); + UNPACK32(regs->ccr, ptr); + UNPACK64(regs->link, ptr); + UNPACK64(regs->ctr, ptr); + UNPACK32(regs->xer, ptr); + + BUG_ON((unsigned long)ptr > + (unsigned long)(((void *)gdb_regs) + NUMREGBYTES)); +} + +/* + * This function does PowerPC specific procesing for interfacing to gdb. + */ +int kgdb_arch_handle_exception(int vector, int signo, int err_code, + char *remcom_in_buffer, char *remcom_out_buffer, + struct pt_regs *linux_regs) +{ + char *ptr = &remcom_in_buffer[1]; + unsigned long addr; + + switch (remcom_in_buffer[0]) { + /* + * sAA..AA Step one instruction from AA..AA + * This will return an error to gdb .. + */ + case 's': + case 'c': + /* handle the optional parameter */ + if (kgdb_hex2long(&ptr, &addr)) + linux_regs->nip = addr; + + atomic_set(&kgdb_cpu_doing_single_step, -1); + /* set the trace bit if we're stepping */ + if (remcom_in_buffer[0] == 's') { +#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) + mtspr(SPRN_DBCR0, + mfspr(SPRN_DBCR0) | DBCR0_IC | DBCR0_IDM); + linux_regs->msr |= MSR_DE; +#else + linux_regs->msr |= MSR_SE; +#endif + kgdb_single_step = 1; + if (kgdb_contthread) + atomic_set(&kgdb_cpu_doing_single_step, + raw_smp_processor_id()); + } + return 0; + } + + return -1; +} + +/* + * Global data + */ +struct kgdb_arch arch_kgdb_ops = { + .gdb_bpt_instr = {0x7d, 0x82, 0x10, 0x08}, +}; + +static int kgdb_not_implemented(struct pt_regs *regs) +{ + return 0; +} + +static void *old__debugger_ipi; +static void *old__debugger; +static void *old__debugger_bpt; +static void *old__debugger_sstep; +static void *old__debugger_iabr_match; +static void *old__debugger_dabr_match; +static void *old__debugger_fault_handler; + +int kgdb_arch_init(void) +{ + old__debugger_ipi = __debugger_ipi; + old__debugger = __debugger; + old__debugger_bpt = __debugger_bpt; + old__debugger_sstep = __debugger_sstep; + old__debugger_iabr_match = __debugger_iabr_match; + old__debugger_dabr_match = __debugger_dabr_match; + old__debugger_fault_handler = __debugger_fault_handler; + + __debugger_ipi = kgdb_call_nmi_hook; + __debugger = kgdb_debugger; + __debugger_bpt = kgdb_handle_breakpoint; + __debugger_sstep = kgdb_singlestep; + __debugger_iabr_match = kgdb_iabr_match; + __debugger_dabr_match = kgdb_dabr_match; + __debugger_fault_handler = kgdb_not_implemented; + + return 0; +} + +void kgdb_arch_exit(void) +{ + __debugger_ipi = old__debugger_ipi; + __debugger = old__debugger; + __debugger_bpt = old__debugger_bpt; + __debugger_sstep = old__debugger_sstep; + __debugger_iabr_match = old__debugger_iabr_match; + __debugger_dabr_match = old__debugger_dabr_match; + __debugger_fault_handler = old__debugger_fault_handler; +} diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 4efebe88e64a..066e65c59b58 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -43,10 +43,6 @@ #define DBG(fmt...) -#if defined CONFIG_KGDB -#include -#endif - extern void bootx_init(unsigned long r4, unsigned long phys); int boot_cpuid; @@ -302,18 +298,6 @@ void __init setup_arch(char **cmdline_p) xmon_setup(); -#if defined(CONFIG_KGDB) - if (ppc_md.kgdb_map_scc) - ppc_md.kgdb_map_scc(); - set_debug_traps(); - if (strstr(cmd_line, "gdb")) { - if (ppc_md.progress) - ppc_md.progress("setup_arch: kgdb breakpoint", 0x4000); - printk("kgdb breakpoint activated\n"); - breakpoint(); - } -#endif - /* * Set cache line size based on type of cpu as a default. * Systems with OF can look in the properties on the cpu node(s) diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 00bd0166d07f..31635446901a 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -97,8 +97,6 @@ extern struct machdep_calls pmac_md; int sccdbg; #endif -extern void zs_kgdb_hook(int tty_num); - sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN; EXPORT_SYMBOL(sys_ctrler); @@ -329,10 +327,6 @@ static void __init pmac_setup_arch(void) l2cr_init(); #endif /* CONFIG_PPC32 */ -#ifdef CONFIG_KGDB - zs_kgdb_hook(0); -#endif - find_via_cuda(); find_via_pmu(); smu_init(); diff --git a/include/asm-powerpc/kgdb.h b/include/asm-powerpc/kgdb.h index b617dac82969..1399caf719ae 100644 --- a/include/asm-powerpc/kgdb.h +++ b/include/asm-powerpc/kgdb.h @@ -1,57 +1,65 @@ /* - * kgdb.h: Defines and declarations for serial line source level - * remote debugging of the Linux kernel using gdb. + * include/asm-powerpc/kgdb.h * + * The PowerPC (32/64) specific defines / externs for KGDB. Based on + * the previous 32bit and 64bit specific files, which had the following + * copyrights: + * + * PPC64 Mods (C) 2005 Frank Rowand (frowand@mvista.com) + * PPC Mods (C) 2004 Tom Rini (trini@mvista.com) + * PPC Mods (C) 2003 John Whitney (john.whitney@timesys.com) * PPC Mods (C) 1998 Michael Tesch (tesch@cs.wisc.edu) * + * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Author: Tom Rini + * + * 2006 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. */ #ifdef __KERNEL__ -#ifndef _PPC_KGDB_H -#define _PPC_KGDB_H +#ifndef __POWERPC_KGDB_H__ +#define __POWERPC_KGDB_H__ #ifndef __ASSEMBLY__ -/* Things specific to the gen550 backend. */ -struct uart_port; - -extern void gen550_progress(char *, unsigned short); -extern void gen550_kgdb_map_scc(void); -extern void gen550_init(int, struct uart_port *); - -/* Things specific to the pmac backend. */ -extern void zs_kgdb_hook(int tty_num); - -/* To init the kgdb engine. (called by serial hook)*/ -extern void set_debug_traps(void); - -/* To enter the debugger explicitly. */ -extern void breakpoint(void); - -/* For taking exceptions - * these are defined in traps.c - */ -extern int (*debugger)(struct pt_regs *regs); -extern int (*debugger_bpt)(struct pt_regs *regs); -extern int (*debugger_sstep)(struct pt_regs *regs); -extern int (*debugger_iabr_match)(struct pt_regs *regs); -extern int (*debugger_dabr_match)(struct pt_regs *regs); -extern void (*debugger_fault_handler)(struct pt_regs *regs); - -/* What we bring to the party */ -int kgdb_bpt(struct pt_regs *regs); -int kgdb_sstep(struct pt_regs *regs); -void kgdb(struct pt_regs *regs); -int kgdb_iabr_match(struct pt_regs *regs); -int kgdb_dabr_match(struct pt_regs *regs); +#define BREAK_INSTR_SIZE 4 +#define BUFMAX ((NUMREGBYTES * 2) + 512) +#define OUTBUFMAX ((NUMREGBYTES * 2) + 512) +static inline void arch_kgdb_breakpoint(void) +{ + asm(".long 0x7d821008"); /* twge r2, r2 */ +} +#define CACHE_FLUSH_IS_SAFE 1 +/* The number bytes of registers we have to save depends on a few + * things. For 64bit we default to not including vector registers and + * vector state registers. */ +#ifdef CONFIG_PPC64 /* - * external low-level support routines (ie macserial.c) + * 64 bit (8 byte) registers: + * 32 gpr, 32 fpr, nip, msr, link, ctr + * 32 bit (4 byte) registers: + * ccr, xer, fpscr */ -extern void kgdb_interruptible(int); /* control interrupts from serial */ -extern void putDebugChar(char); /* write a single character */ -extern char getDebugChar(void); /* read and return a single char */ - +#define NUMREGBYTES ((68 * 8) + (3 * 4)) +#define NUMCRITREGBYTES 184 +#else /* CONFIG_PPC32 */ +/* On non-E500 family PPC32 we determine the size by picking the last + * register we need, but on E500 we skip sections so we list what we + * need to store, and add it up. */ +#ifndef CONFIG_E500 +#define MAXREG (PT_FPSCR+1) +#else +/* 32 GPRs (8 bytes), nip, msr, ccr, link, ctr, xer, acc (8 bytes), spefscr*/ +#define MAXREG ((32*2)+6+2+1) +#endif +#define NUMREGBYTES (MAXREG * sizeof(int)) +/* CR/LR, R1, R2, R13-R31 inclusive. */ +#define NUMCRITREGBYTES (23 * sizeof(int)) +#endif /* 32/64 */ #endif /* !(__ASSEMBLY__) */ -#endif /* !(_PPC_KGDB_H) */ +#endif /* !__POWERPC_KGDB_H__ */ #endif /* __KERNEL__ */ -- cgit v1.2.3 From c97c6aca75fd5f718056fde7cff798b8cbdb07c0 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:50 +0200 Subject: ide: pass hw_regs_t-s to ide_device_add[_all]() (take 3) * Add 'hw_regs_t **hws' argument to ide_device_add[_all]() and convert host drivers + ide_legacy_init_one() + ide_setup_pci_device[s]() to use it instead of calling ide_init_port_hw() directly. [ However if host has > 1 port we must still set hwif->chipset to hint consecutive ide_find_port() call that the previous slot is occupied. ] * Unexport ide_init_port_hw(). v2: * Use defines instead of hard-coded values in buddha.c, gayle.c and q40ide.c. (Suggested by Geert Uytterhoeven) * Better patch description. v3: * Fix build problem in ide-cs.c. (Noticed by Stephen Rothwell) There should be no functional changes caused by this patch. Cc: Geert Uytterhoeven Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/icside.c | 13 ++++++------- drivers/ide/arm/ide_arm.c | 5 ++--- drivers/ide/arm/palm_bk3710.c | 6 ++---- drivers/ide/arm/rapide.c | 5 ++--- drivers/ide/h8300/ide-h8300.c | 5 ++--- drivers/ide/ide-generic.c | 23 ++++++++++++----------- drivers/ide/ide-pnp.c | 6 ++---- drivers/ide/ide-probe.c | 29 ++++++++++++++++++----------- drivers/ide/ide.c | 1 - drivers/ide/legacy/buddha.c | 16 +++++++++------- drivers/ide/legacy/falconide.c | 6 ++---- drivers/ide/legacy/gayle.c | 13 ++++++------- drivers/ide/legacy/ide-4drives.c | 10 ++++++---- drivers/ide/legacy/ide-cs.c | 10 +++------- drivers/ide/legacy/ide_platform.c | 9 +++------ drivers/ide/legacy/macide.c | 6 ++---- drivers/ide/legacy/q40ide.c | 14 ++++++-------- drivers/ide/mips/au1xxx-ide.c | 6 ++---- drivers/ide/mips/swarm.c | 6 ++---- drivers/ide/pci/cmd640.c | 10 ++++++---- drivers/ide/pci/cs5520.c | 5 +++-- drivers/ide/pci/delkin_cb.c | 6 ++---- drivers/ide/pci/scc_pata.c | 5 ++--- drivers/ide/pci/sgiioc4.c | 6 ++---- drivers/ide/ppc/pmac.c | 5 ++--- drivers/ide/setup-pci.c | 38 +++++++++++++++++++++++--------------- include/linux/ide.h | 7 ++++--- 27 files changed, 131 insertions(+), 140 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index 52f58c885783..850fe9342a1f 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -442,8 +442,8 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) { ide_hwif_t *hwif; void __iomem *base; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw; base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0); if (!base) @@ -467,7 +467,6 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) if (!hwif) return -ENODEV; - ide_init_port_hw(hwif, &hw); default_hwif_mmiops(hwif); state->hwif[0] = hwif; @@ -476,7 +475,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) idx[0] = hwif->index; - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); return 0; } @@ -497,9 +496,9 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) void __iomem *ioc_base, *easi_base; unsigned int sel = 0; int ret; + hw_regs_t hw[2], *hws[] = { &hw[0], NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; struct ide_port_info d = icside_v6_port_info; - hw_regs_t hw[2]; ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0); if (!ioc_base) { @@ -545,16 +544,16 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) if (hwif == NULL) return -ENODEV; - ide_init_port_hw(hwif, &hw[0]); + hwif->chipset = ide_acorn; default_hwif_mmiops(hwif); idx[0] = hwif->index; mate = ide_find_port(); if (mate) { - ide_init_port_hw(mate, &hw[1]); default_hwif_mmiops(mate); + hws[1] = &hw[1]; idx[1] = mate->index; } @@ -569,7 +568,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) d.dma_ops = NULL; } - ide_device_add(idx, &d); + ide_device_add(idx, &d, hws); return 0; diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c index 2f311da4c963..e9831bbd988a 100644 --- a/drivers/ide/arm/ide_arm.c +++ b/drivers/ide/arm/ide_arm.c @@ -29,8 +29,8 @@ static int __init ide_arm_init(void) { ide_hwif_t *hwif; - hw_regs_t hw; unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!request_region(base, 8, DRV_NAME)) { @@ -53,10 +53,9 @@ static int __init ide_arm_init(void) hwif = ide_find_port(); if (hwif) { - ide_init_port_hw(hwif, &hw); idx[0] = hwif->index; - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); } return 0; diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index c79b85b6e4a3..023c10753f15 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -351,7 +351,7 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) ide_hwif_t *hwif; unsigned long base, rate; int i; - hw_regs_t hw; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; clk = clk_get(NULL, "IDECLK"); @@ -400,13 +400,11 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) i = hwif->index; - ide_init_port_hw(hwif, &hw); - default_hwif_mmiops(hwif); idx[0] = i; - ide_device_add(idx, &palm_bk3710_port_info); + ide_device_add(idx, &palm_bk3710_port_info, hws); return 0; out: diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c index 43057e0303c8..01896f6e8acf 100644 --- a/drivers/ide/arm/rapide.c +++ b/drivers/ide/arm/rapide.c @@ -35,8 +35,8 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) ide_hwif_t *hwif; void __iomem *base; int ret; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw; ret = ecard_request_resources(ec); if (ret) @@ -59,12 +59,11 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) goto release; } - ide_init_port_hw(hwif, &hw); default_hwif_mmiops(hwif); idx[0] = hwif->index; - ide_device_add(idx, &rapide_port_info); + ide_device_add(idx, &rapide_port_info, hws); ecard_set_drvdata(ec, hwif); goto out; diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index 20fad6d542cc..a71433b3d0f3 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -184,9 +184,9 @@ static const struct ide_port_info h8300_port_info = { static int __init h8300_ide_init(void) { - hw_regs_t hw; ide_hwif_t *hwif; int index; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; printk(KERN_INFO DRV_NAME ": H8/300 generic IDE interface\n"); @@ -205,12 +205,11 @@ static int __init h8300_ide_init(void) return -ENOENT; index = hwif->index; - ide_init_port_hw(hwif, &hw); hwif_setup(hwif); idx[0] = index; - ide_device_add(idx, &h8300_port_info); + ide_device_add(idx, &h8300_port_info, hws); return 0; diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c index 2d92214096ab..bb9fc905d60c 100644 --- a/drivers/ide/ide-generic.c +++ b/drivers/ide/ide-generic.c @@ -31,7 +31,7 @@ static ssize_t store_add(struct class *cls, const char *buf, size_t n) ide_hwif_t *hwif; unsigned int base, ctl; int irq; - hw_regs_t hw; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[] = { 0xff, 0xff, 0xff, 0xff }; if (sscanf(buf, "%x:%x:%d", &base, &ctl, &irq) != 3) @@ -46,11 +46,9 @@ static ssize_t store_add(struct class *cls, const char *buf, size_t n) hw.irq = irq; hw.chipset = ide_generic; - ide_init_port_hw(hwif, &hw); - idx[0] = hwif->index; - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); return n; }; @@ -90,6 +88,7 @@ static int __init ide_generic_sysfs_init(void) static int __init ide_generic_init(void) { + hw_regs_t hw[MAX_HWIFS], *hws[MAX_HWIFS]; u8 idx[MAX_HWIFS]; int i; @@ -99,8 +98,8 @@ static int __init ide_generic_init(void) for (i = 0; i < MAX_HWIFS; i++) { ide_hwif_t *hwif; unsigned long io_addr = ide_default_io_base(i); - hw_regs_t hw; + hws[i] = NULL; idx[i] = 0xff; if ((probe_mask & (1 << i)) && io_addr) { @@ -129,17 +128,19 @@ static int __init ide_generic_init(void) continue; } - memset(&hw, 0, sizeof(hw)); - ide_std_init_ports(&hw, io_addr, io_addr + 0x206); - hw.irq = ide_default_irq(io_addr); - hw.chipset = ide_generic; - ide_init_port_hw(hwif, &hw); + hwif->chipset = ide_generic; + + memset(&hw[i], 0, sizeof(hw[i])); + ide_std_init_ports(&hw[i], io_addr, io_addr + 0x206); + hw[i].irq = ide_default_irq(io_addr); + hw[i].chipset = ide_generic; + hws[i] = &hw[i]; idx[i] = i; } } - ide_device_add_all(idx, NULL); + ide_device_add_all(idx, NULL, hws); if (ide_generic_sysfs_init()) printk(KERN_ERR DRV_NAME ": failed to create ide_generic " diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c index 03f2ef5470a3..89cd5cbe8573 100644 --- a/drivers/ide/ide-pnp.c +++ b/drivers/ide/ide-pnp.c @@ -29,9 +29,9 @@ static struct pnp_device_id idepnp_devices[] = { static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) { - hw_regs_t hw; ide_hwif_t *hwif; unsigned long base, ctl; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); @@ -64,11 +64,9 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) u8 index = hwif->index; u8 idx[4] = { index, 0xff, 0xff, 0xff }; - ide_init_port_hw(hwif, &hw); - pnp_set_drvdata(dev, hwif); - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); return 0; } diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 235ebdb29b28..9d8686a49fcf 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1501,7 +1501,7 @@ out_found: } EXPORT_SYMBOL_GPL(ide_find_port_slot); -int ide_device_add_all(u8 *idx, const struct ide_port_info *d) +int ide_device_add_all(u8 *idx, const struct ide_port_info *d, hw_regs_t **hws) { ide_hwif_t *hwif, *mate = NULL; int i, rc = 0; @@ -1514,6 +1514,7 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d) hwif = &ide_hwifs[idx[i]]; + ide_init_port_hw(hwif, hws[i]); ide_port_apply_params(hwif); if (d == NULL) { @@ -1603,15 +1604,18 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d) } EXPORT_SYMBOL_GPL(ide_device_add_all); -int ide_device_add(u8 idx[4], const struct ide_port_info *d) +int ide_device_add(u8 *idx, const struct ide_port_info *d, hw_regs_t **hws) { + hw_regs_t *hws_all[MAX_HWIFS]; u8 idx_all[MAX_HWIFS]; int i; - for (i = 0; i < MAX_HWIFS; i++) + for (i = 0; i < MAX_HWIFS; i++) { + hws_all[i] = (i < 4) ? hws[i] : NULL; idx_all[i] = (i < 4) ? idx[i] : 0xff; + } - return ide_device_add_all(idx_all, d); + return ide_device_add_all(idx_all, d, hws_all); } EXPORT_SYMBOL_GPL(ide_device_add); @@ -1634,8 +1638,8 @@ void ide_port_scan(ide_hwif_t *hwif) } EXPORT_SYMBOL_GPL(ide_port_scan); -static void ide_legacy_init_one(u8 *idx, hw_regs_t *hw, u8 port_no, - const struct ide_port_info *d, +static void ide_legacy_init_one(u8 *idx, hw_regs_t **hws, hw_regs_t *hw, + u8 port_no, const struct ide_port_info *d, unsigned long config) { ide_hwif_t *hwif; @@ -1671,9 +1675,12 @@ static void ide_legacy_init_one(u8 *idx, hw_regs_t *hw, u8 port_no, hwif = ide_find_port_slot(d); if (hwif) { - ide_init_port_hw(hwif, hw); + hwif->chipset = hw->chipset; + if (config) hwif->config_data = config; + + hws[port_no] = hw; idx[port_no] = hwif->index; } } @@ -1681,19 +1688,19 @@ static void ide_legacy_init_one(u8 *idx, hw_regs_t *hw, u8 port_no, int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) { u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw[2]; + hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL }; memset(&hw, 0, sizeof(hw)); if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0) - ide_legacy_init_one(idx, &hw[0], 0, d, config); - ide_legacy_init_one(idx, &hw[1], 1, d, config); + ide_legacy_init_one(idx, hws, &hw[0], 0, d, config); + ide_legacy_init_one(idx, hws, &hw[1], 1, d, config); if (idx[0] == 0xff && idx[1] == 0xff && (d->host_flags & IDE_HFLAG_SINGLE)) return -ENOENT; - ide_device_add(idx, d); + ide_device_add(idx, d, hws); return 0; } diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index d4a6b102a772..b6018f7b0907 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -288,7 +288,6 @@ void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) hwif->gendev.parent = hw->parent ? hw->parent : hw->dev; hwif->ack_intr = hw->ack_intr; } -EXPORT_SYMBOL_GPL(ide_init_port_hw); /* * Locks for IDE setting functionality diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c index 0497e7f85b09..c61bc6a1db36 100644 --- a/drivers/ide/legacy/buddha.c +++ b/drivers/ide/legacy/buddha.c @@ -37,6 +37,8 @@ #define CATWEASEL_NUM_HWIFS 3 #define XSURF_NUM_HWIFS 2 +#define MAX_NUM_HWIFS 3 + /* * Bases of the IDE interfaces (relative to the board address) */ @@ -148,7 +150,6 @@ static void __init buddha_setup_ports(hw_regs_t *hw, unsigned long base, static int __init buddha_init(void) { - hw_regs_t hw; ide_hwif_t *hwif; int i; @@ -159,6 +160,7 @@ static int __init buddha_init(void) while ((z = zorro_find_device(ZORRO_WILDCARD, z))) { unsigned long board; + hw_regs_t hw[MAX_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_BUDDHA) { @@ -221,19 +223,19 @@ fail_base2: ack_intr = xsurf_ack_intr; } - buddha_setup_ports(&hw, base, ctl, irq_port, ack_intr); + buddha_setup_ports(&hw[i], base, ctl, irq_port, + ack_intr); hwif = ide_find_port(); if (hwif) { - u8 index = hwif->index; - - ide_init_port_hw(hwif, &hw); + hwif->chipset = ide_generic; - idx[i] = index; + hws[i] = &hw[i]; + idx[i] = hwif->index; } } - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); } return 0; diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c index 129a812bb57f..1bb2aa72cc7f 100644 --- a/drivers/ide/legacy/falconide.c +++ b/drivers/ide/legacy/falconide.c @@ -91,8 +91,8 @@ static void __init falconide_setup_ports(hw_regs_t *hw) static int __init falconide_init(void) { - hw_regs_t hw; ide_hwif_t *hwif; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE)) return 0; @@ -111,14 +111,12 @@ static int __init falconide_init(void) u8 index = hwif->index; u8 idx[4] = { index, 0xff, 0xff, 0xff }; - ide_init_port_hw(hwif, &hw); - /* Atari has a byte-swapped IDE interface */ hwif->input_data = falconide_input_data; hwif->output_data = falconide_output_data; ide_get_lock(NULL, NULL); - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); ide_release_lock(); } diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c index 7e74b20202df..e45c7341186c 100644 --- a/drivers/ide/legacy/gayle.c +++ b/drivers/ide/legacy/gayle.c @@ -125,6 +125,7 @@ static void __init gayle_setup_ports(hw_regs_t *hw, unsigned long base, static int __init gayle_init(void) { int a4000, i; + hw_regs_t hw[GAYLE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!MACH_IS_AMIGA) @@ -151,7 +152,6 @@ found: for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) { unsigned long base, ctrlport, irqport; ide_ack_intr_t *ack_intr; - hw_regs_t hw; ide_hwif_t *hwif; unsigned long phys_base, res_start, res_n; @@ -179,20 +179,19 @@ found: base = (unsigned long)ZTWO_VADDR(phys_base); ctrlport = GAYLE_HAS_CONTROL_REG ? (base + GAYLE_CONTROL) : 0; - gayle_setup_ports(&hw, base, ctrlport, irqport, ack_intr); + gayle_setup_ports(&hw[i], base, ctrlport, irqport, ack_intr); hwif = ide_find_port(); if (hwif) { - u8 index = hwif->index; + hwif->chipset = ide_generic; - ide_init_port_hw(hwif, &hw); - - idx[i] = index; + hws[i] = &hw[i]; + idx[i] = hwif->index; } else release_mem_region(res_start, res_n); } - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); return 0; } diff --git a/drivers/ide/legacy/ide-4drives.c b/drivers/ide/legacy/ide-4drives.c index 89c8ff0a4d08..6310dc50e3c5 100644 --- a/drivers/ide/legacy/ide-4drives.c +++ b/drivers/ide/legacy/ide-4drives.c @@ -30,8 +30,8 @@ static int __init ide_4drives_init(void) { ide_hwif_t *hwif, *mate; unsigned long base = 0x1f0, ctl = 0x3f6; + hw_regs_t hw, *hws[] = { NULL, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw; if (probe_4drives == 0) return -ENODEV; @@ -57,17 +57,19 @@ static int __init ide_4drives_init(void) hwif = ide_find_port(); if (hwif) { - ide_init_port_hw(hwif, &hw); + hwif->chipset = ide_4drives; + + hws[0] = &hw; idx[0] = hwif->index; } mate = ide_find_port(); if (mate) { - ide_init_port_hw(mate, &hw); + hws[1] = &hw; idx[1] = mate->index; } - ide_device_add(idx, &ide_4drives_port_info); + ide_device_add(idx, &ide_4drives_port_info, hws); return 0; } diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c index 27b1e0b7ecb4..f93d5454ebf8 100644 --- a/drivers/ide/legacy/ide-cs.c +++ b/drivers/ide/legacy/ide-cs.c @@ -161,8 +161,8 @@ static ide_hwif_t *idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, struct pcmcia_device *handle) { ide_hwif_t *hwif; - hw_regs_t hw; int i; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!request_region(io, 8, DRV_NAME)) { @@ -188,13 +188,9 @@ static ide_hwif_t *idecs_register(unsigned long io, unsigned long ctl, if (hwif == NULL) goto out_release; - i = hwif->index; + idx[0] = hwif->index; - ide_init_port_hw(hwif, &hw); - - idx[0] = i; - - ide_device_add(idx, &idecs_port_info); + ide_device_add(idx, &idecs_port_info, hws); if (hwif->present) return hwif; diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c index a249562b34b5..609da0d43196 100644 --- a/drivers/ide/legacy/ide_platform.c +++ b/drivers/ide/legacy/ide_platform.c @@ -54,10 +54,9 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) void __iomem *base, *alt_base; ide_hwif_t *hwif; struct pata_platform_info *pdata; + int ret = 0, mmio = 0; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - int ret = 0; - int mmio = 0; - hw_regs_t hw; struct ide_port_info d = platform_ide_port_info; pdata = pdev->dev.platform_data; @@ -104,8 +103,6 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) plat_ide_setup_ports(&hw, base, alt_base, pdata, res_irq->start); hw.dev = &pdev->dev; - ide_init_port_hw(hwif, &hw); - if (mmio) { d.host_flags |= IDE_HFLAG_MMIO; default_hwif_mmiops(hwif); @@ -113,7 +110,7 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) idx[0] = hwif->index; - ide_device_add(idx, &d); + ide_device_add(idx, &d, hws); platform_set_drvdata(pdev, hwif); diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c index 0a6195bcfeda..d839df2239fc 100644 --- a/drivers/ide/legacy/macide.c +++ b/drivers/ide/legacy/macide.c @@ -95,7 +95,7 @@ static int __init macide_init(void) ide_ack_intr_t *ack_intr; unsigned long base; int irq; - hw_regs_t hw; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; if (!MACH_IS_MAC) return -ENODEV; @@ -130,9 +130,7 @@ static int __init macide_init(void) u8 index = hwif->index; u8 idx[4] = { index, 0xff, 0xff, 0xff }; - ide_init_port_hw(hwif, &hw); - - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); } return 0; diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c index 9c2b9d078f69..fcb04b8b0238 100644 --- a/drivers/ide/legacy/q40ide.c +++ b/drivers/ide/legacy/q40ide.c @@ -112,7 +112,7 @@ static int __init q40ide_init(void) { int i; ide_hwif_t *hwif; - const char *name; + hw_regs_t hw[Q40IDE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!MACH_IS_Q40) @@ -121,9 +121,8 @@ static int __init q40ide_init(void) printk(KERN_INFO "ide: Q40 IDE controller\n"); for (i = 0; i < Q40IDE_NUM_HWIFS; i++) { - hw_regs_t hw; + const char *name = q40_ide_names[i]; - name = q40_ide_names[i]; if (!request_region(pcide_bases[i], 8, name)) { printk("could not reserve ports %lx-%lx for %s\n", pcide_bases[i],pcide_bases[i]+8,name); @@ -135,24 +134,23 @@ static int __init q40ide_init(void) release_region(pcide_bases[i], 8); continue; } - q40_ide_setup_ports(&hw, pcide_bases[i], - NULL, -// m68kide_iops, + q40_ide_setup_ports(&hw[i], pcide_bases[i], NULL, q40ide_default_irq(pcide_bases[i])); hwif = ide_find_port(); if (hwif) { - ide_init_port_hw(hwif, &hw); + hwif->chipset = ide_generic; /* Q40 has a byte-swapped IDE interface */ hwif->input_data = q40ide_input_data; hwif->output_data = q40ide_output_data; + hws[i] = &hw[i]; idx[i] = hwif->index; } } - ide_device_add(idx, NULL); + ide_device_add(idx, NULL, hws); return 0; } diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index 48d57cae63c6..475da582fd89 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -546,8 +546,8 @@ static int au_ide_probe(struct device *dev) ide_hwif_t *hwif; struct resource *res; int ret = 0; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw; #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) char *mode = "MWDMA2"; @@ -596,8 +596,6 @@ static int au_ide_probe(struct device *dev) hw.dev = dev; hw.chipset = ide_au1xxx; - ide_init_port_hw(hwif, &hw); - /* If the user has selected DDMA assisted copies, then set up a few local I/O function entry points */ @@ -611,7 +609,7 @@ static int au_ide_probe(struct device *dev) idx[0] = hwif->index; - ide_device_add(idx, &au1xxx_port_info); + ide_device_add(idx, &au1xxx_port_info, hws); dev_set_drvdata(dev, hwif); diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c index 9f1212cc4aed..6da6844d2d8c 100644 --- a/drivers/ide/mips/swarm.c +++ b/drivers/ide/mips/swarm.c @@ -75,8 +75,8 @@ static int __devinit swarm_ide_probe(struct device *dev) ide_hwif_t *hwif; u8 __iomem *base; phys_t offset, size; - hw_regs_t hw; int i; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[] = { 0xff, 0xff, 0xff, 0xff }; if (!SIBYTE_HAVE_IDE) @@ -120,14 +120,12 @@ static int __devinit swarm_ide_probe(struct device *dev) if (hwif == NULL) goto err; - ide_init_port_hw(hwif, &hw); - /* Setup MMIO ops. */ default_hwif_mmiops(hwif); idx[0] = hwif->index; - ide_device_add(idx, &swarm_port_info); + ide_device_add(idx, &swarm_port_info, hws); dev_set_drvdata(dev, hwif); diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index 1ad1e23e3105..ccde1e444e13 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -717,8 +717,8 @@ static int __init cmd640x_init(void) int second_port_cmd640 = 0, rc; const char *bus_type, *port2; u8 b, cfr; + hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw[2]; if (cmd640_vlb && probe_for_cmd640_vlb()) { bus_type = "VLB"; @@ -787,7 +787,9 @@ static int __init cmd640x_init(void) * Initialize data for primary port */ if (cmd_hwif0) { - ide_init_port_hw(cmd_hwif0, &hw[0]); + cmd_hwif0->chipset = ide_cmd640; + + hws[0] = &hw[0]; idx[0] = cmd_hwif0->index; } @@ -832,7 +834,7 @@ static int __init cmd640x_init(void) if (second_port_cmd640) { cmd_hwif1 = ide_find_port(); if (cmd_hwif1) { - ide_init_port_hw(cmd_hwif1, &hw[1]); + hws[1] = &hw[1]; idx[1] = cmd_hwif1->index; } } @@ -843,7 +845,7 @@ static int __init cmd640x_init(void) cmd640_dump_regs(); #endif - ide_device_add(idx, &cmd640_port_info); + ide_device_add(idx, &cmd640_port_info, hws); return 1; } diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index 992b1cf8db69..a13f2bc0665c 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -146,6 +146,7 @@ static const struct ide_port_info cyrix_chipsets[] __devinitdata = { static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id) { const struct ide_port_info *d = &cyrix_chipsets[id->driver_data]; + hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; ide_setup_pci_noise(dev, d); @@ -168,9 +169,9 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic * do all the device setup for us */ - ide_pci_setup_ports(dev, d, 14, &idx[0]); + ide_pci_setup_ports(dev, d, 14, &idx[0], &hw[0], &hws[0]); - ide_device_add(idx, d); + ide_device_add(idx, d, hws); return 0; } diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c index 0106e2a2df77..33fe15db408a 100644 --- a/drivers/ide/pci/delkin_cb.c +++ b/drivers/ide/pci/delkin_cb.c @@ -57,9 +57,9 @@ static int __devinit delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) { unsigned long base; - hw_regs_t hw; ide_hwif_t *hwif = NULL; int i, rc; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; rc = pci_enable_device(dev); @@ -93,11 +93,9 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) i = hwif->index; - ide_init_port_hw(hwif, &hw); - idx[0] = i; - ide_device_add(idx, &delkin_cb_port_info); + ide_device_add(idx, &delkin_cb_port_info, hws); pci_set_drvdata(dev, hwif); diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 789c66dfbde5..328e2df66550 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -554,7 +554,7 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev, { struct scc_ports *ports = pci_get_drvdata(dev); ide_hwif_t *hwif = NULL; - hw_regs_t hw; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; int i; @@ -568,11 +568,10 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev, hw.irq = dev->irq; hw.dev = &dev->dev; hw.chipset = ide_pci; - ide_init_port_hw(hwif, &hw); idx[0] = hwif->index; - ide_device_add(idx, d); + ide_device_add(idx, d, hws); return 0; } diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index c79ff5b41088..76afa1f9c599 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -584,8 +584,8 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) unsigned long bar0, cmd_phys_base, ctl; void __iomem *virt_base; ide_hwif_t *hwif; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw; struct ide_port_info d = sgiioc4_port_info; /* Get the CmdBlk and CtrlBlk Base Registers */ @@ -622,8 +622,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) if (hwif == NULL) goto err; - ide_init_port_hw(hwif, &hw); - /* The IOC4 uses MMIO rather than Port IO. */ default_hwif_mmiops(hwif); @@ -634,7 +632,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) idx[0] = hwif->index; - if (ide_device_add(idx, &d)) + if (ide_device_add(idx, &d, hws)) return -EIO; return 0; diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index 4e2944ee76d8..e68e33bb2c35 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1010,6 +1010,7 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) struct device_node *np = pmif->node; const int *bidp; ide_hwif_t *hwif; + hw_regs_t *hws[] = { hw, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; struct ide_port_info d = pmac_port_info; @@ -1095,11 +1096,9 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) default_hwif_mmiops(hwif); hwif->OUTBSYNC = pmac_outbsync; - ide_init_port_hw(hwif, hw); - idx[0] = hwif->index; - ide_device_add(idx, &d); + ide_device_add(idx, &d, hws); return 0; } diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 7ae6ae45331f..acb467c6f345 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -289,6 +289,7 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info * * @d: IDE port info * @port: port number * @irq: PCI IRQ + * @hw: hw_regs_t instance corresponding to this port * * Perform the initial set up for the hardware interface structure. This * is done per interface port rather than per PCI device. There may be @@ -299,11 +300,11 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info * static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, const struct ide_port_info *d, - unsigned int port, int irq) + unsigned int port, int irq, + hw_regs_t *hw) { unsigned long ctl = 0, base = 0; ide_hwif_t *hwif; - struct hw_regs_s hw; if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { if (ide_pci_check_iomem(dev, d, 2 * port) || @@ -327,17 +328,17 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, return NULL; } + memset(hw, 0, sizeof(*hw)); + hw->irq = irq; + hw->dev = &dev->dev; + hw->chipset = d->chipset ? d->chipset : ide_pci; + ide_std_init_ports(hw, base, ctl | 2); + hwif = ide_find_port_slot(d); if (hwif == NULL) return NULL; - memset(&hw, 0, sizeof(hw)); - hw.irq = irq; - hw.dev = &dev->dev; - hw.chipset = d->chipset ? d->chipset : ide_pci; - ide_std_init_ports(&hw, base, ctl | 2); - - ide_init_port_hw(hwif, &hw); + hwif->chipset = hw->chipset; return hwif; } @@ -430,6 +431,8 @@ out: * @d: IDE port info * @pciirq: IRQ line * @idx: ATA index table to update + * @hw: hw_regs_t instances corresponding to this PCI IDE device + * @hws: hw_regs_t pointers table to update * * Scan the interfaces attached to this device and do any * necessary per port setup. Attach the devices and ask the @@ -440,7 +443,8 @@ out: * where the chipset setup is not the default PCI IDE one. */ -void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, int pciirq, u8 *idx) +void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, + int pciirq, u8 *idx, hw_regs_t *hw, hw_regs_t **hws) { int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port; ide_hwif_t *hwif; @@ -459,10 +463,11 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, int continue; /* port not enabled */ } - hwif = ide_hwif_configure(dev, d, port, pciirq); + hwif = ide_hwif_configure(dev, d, port, pciirq, hw + port); if (hwif == NULL) continue; + *(hws + port) = hw + port; *(idx + port) = hwif->index; } } @@ -537,15 +542,16 @@ out: int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) { u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; int ret; ret = do_ide_setup_pci_device(dev, d, 1); if (ret >= 0) { /* FIXME: silent failure can happen */ - ide_pci_setup_ports(dev, d, ret, &idx[0]); + ide_pci_setup_ports(dev, d, ret, &idx[0], &hw[0], &hws[0]); - ide_device_add(idx, d); + ide_device_add(idx, d, hws); } return ret; @@ -557,6 +563,7 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, { struct pci_dev *pdev[] = { dev1, dev2 }; int ret, i; + hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; for (i = 0; i < 2; i++) { @@ -570,10 +577,11 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, goto out; /* FIXME: silent failure can happen */ - ide_pci_setup_ports(pdev[i], d, ret, &idx[i*2]); + ide_pci_setup_ports(pdev[i], d, ret, &idx[i*2], &hw[i*2], + &hws[i*2]); } - ide_device_add(idx, d); + ide_device_add(idx, d, hws); out: return ret; } diff --git a/include/linux/ide.h b/include/linux/ide.h index 4726126f5a59..f58548becac0 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1000,7 +1000,8 @@ extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *o #define ide_pci_register_driver(d) pci_register_driver(d) #endif -void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *); +void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, + u8 *, hw_regs_t *, hw_regs_t **); void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); #ifdef CONFIG_BLK_DEV_IDEDMA_PCI @@ -1217,8 +1218,8 @@ void ide_undecoded_slave(ide_drive_t *); void ide_port_apply_params(ide_hwif_t *); -int ide_device_add_all(u8 *idx, const struct ide_port_info *); -int ide_device_add(u8 idx[4], const struct ide_port_info *); +int ide_device_add_all(u8 *, const struct ide_port_info *, hw_regs_t **); +int ide_device_add(u8 *, const struct ide_port_info *, hw_regs_t **); int ide_legacy_device_add(const struct ide_port_info *, unsigned long); void ide_port_unregister_devices(ide_hwif_t *); void ide_port_scan(ide_hwif_t *); -- cgit v1.2.3 From b2f951aabc9cc7d5fb987aeec9aef96ccce618a5 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:50 +0200 Subject: ide: add ->read_sff_dma_status method Add ->read_sff_dma_status method for reading DMA Status register and use it instead of ->INB. While at it: * Use inb() directly in ns87415.c::ns87415_dma_end(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-dma.c | 12 ++++++------ drivers/ide/ide-iops.c | 10 ++++++++++ drivers/ide/pci/ns87415.c | 13 ++++++++++--- drivers/ide/pci/scc_pata.c | 7 +++++++ include/linux/ide.h | 2 ++ 5 files changed, 35 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 7ee44f86bc54..ebddedde24af 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -334,7 +334,7 @@ static int config_drive_for_dma (ide_drive_t *drive) static int dma_timer_expiry (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - u8 dma_stat = hwif->INB(hwif->dma_status); + u8 dma_stat = hwif->read_sff_dma_status(hwif); printk(KERN_WARNING "%s: dma_timer_expiry: dma status == 0x%02x\n", drive->name, dma_stat); @@ -369,7 +369,7 @@ void ide_dma_host_set(ide_drive_t *drive, int on) { ide_hwif_t *hwif = HWIF(drive); u8 unit = (drive->select.b.unit & 0x01); - u8 dma_stat = hwif->INB(hwif->dma_status); + u8 dma_stat = hwif->read_sff_dma_status(hwif); if (on) dma_stat |= (1 << (5 + unit)); @@ -472,8 +472,8 @@ int ide_dma_setup(ide_drive_t *drive) /* specify r/w */ hwif->OUTB(reading, hwif->dma_command); - /* read dma_status for INTR & ERROR flags */ - dma_stat = hwif->INB(hwif->dma_status); + /* read DMA status for INTR & ERROR flags */ + dma_stat = hwif->read_sff_dma_status(hwif); /* clear INTR & ERROR flags */ hwif->OUTB(dma_stat|6, hwif->dma_status); @@ -520,7 +520,7 @@ int __ide_dma_end (ide_drive_t *drive) /* stop DMA */ hwif->OUTB(dma_cmd&~1, hwif->dma_command); /* get DMA status */ - dma_stat = hwif->INB(hwif->dma_status); + dma_stat = hwif->read_sff_dma_status(hwif); /* clear the INTR & ERROR bits */ hwif->OUTB(dma_stat|6, hwif->dma_status); /* purge DMA mappings */ @@ -537,7 +537,7 @@ EXPORT_SYMBOL(__ide_dma_end); int ide_dma_test_irq(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - u8 dma_stat = hwif->INB(hwif->dma_status); + u8 dma_stat = hwif->read_sff_dma_status(hwif); /* return 1 if INTR asserted */ if ((dma_stat & 4) == 4) diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 44aaec256a30..a09bf4369ed8 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -103,6 +103,14 @@ void SELECT_MASK(ide_drive_t *drive, int mask) port_ops->maskproc(drive, mask); } +static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) +{ + if (hwif->host_flags & IDE_HFLAG_MMIO) + return readb((void __iomem *)hwif->dma_status); + else + return inb(hwif->dma_status); +} + static void ide_tf_load(ide_drive_t *drive, ide_task_t *task) { ide_hwif_t *hwif = drive->hwif; @@ -323,6 +331,8 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq, void default_hwif_transport(ide_hwif_t *hwif) { + hwif->read_sff_dma_status = ide_read_sff_dma_status; + hwif->tf_load = ide_tf_load; hwif->tf_read = ide_tf_read; diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index 45ba71a7182f..9ffdbb89df5c 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -63,6 +63,11 @@ static u8 superio_ide_inb (unsigned long port) return inb(port); } +static u8 superio_read_sff_dma_status(ide_hwif_t *hwif) +{ + return superio_ide_inb(hwif->dma_status); +} + static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) { struct ide_io_ports *io_ports = &drive->hwif->io_ports; @@ -122,6 +127,8 @@ static void __devinit superio_ide_init_iops (struct hwif_s *hwif) tmp = superio_ide_inb(superio_ide_dma_status[port]); outb(tmp | 0x66, superio_ide_dma_status[port]); + hwif->read_sff_dma_status = superio_read_sff_dma_status; + hwif->tf_read = superio_tf_read; /* We need to override inb to workaround a SuperIO errata */ @@ -200,13 +207,13 @@ static int ns87415_dma_end(ide_drive_t *drive) u8 dma_stat = 0, dma_cmd = 0; drive->waiting_for_dma = 0; - dma_stat = hwif->INB(hwif->dma_status); + dma_stat = hwif->read_sff_dma_status(hwif); /* get dma command mode */ - dma_cmd = hwif->INB(hwif->dma_command); + dma_cmd = inb(hwif->dma_command); /* stop DMA */ outb(dma_cmd & ~1, hwif->dma_command); /* from ERRATA: clear the INTR & ERROR bits */ - dma_cmd = hwif->INB(hwif->dma_command); + dma_cmd = inb(hwif->dma_command); outb(dma_cmd | 6, hwif->dma_command); /* and free any DMA resources */ ide_destroy_dmatable(drive); diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 328e2df66550..7a2a7b2a319a 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -126,6 +126,11 @@ static u8 scc_ide_inb(unsigned long port) return (u8)data; } +static u8 scc_read_sff_dma_status(ide_hwif_t *hwif) +{ + return (u8)in_be32((void *)hwif->dma_status); +} + static void scc_ide_insw(unsigned long port, void *addr, u32 count) { u16 *ptr = (u16 *)addr; @@ -773,6 +778,8 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) ide_set_hwifdata(hwif, ports); + hwif->read_sff_dma_status = scc_read_sff_dma_status; + hwif->tf_load = scc_tf_load; hwif->tf_read = scc_tf_read; diff --git a/include/linux/ide.h b/include/linux/ide.h index f58548becac0..ca0efbb0a8b4 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -489,6 +489,8 @@ typedef struct hwif_s { const struct ide_port_ops *port_ops; const struct ide_dma_ops *dma_ops; + u8 (*read_sff_dma_status)(struct hwif_s *); + void (*tf_load)(ide_drive_t *, struct ide_task_s *); void (*tf_read)(ide_drive_t *, struct ide_task_s *); -- cgit v1.2.3 From cab7f8eda40d3e3e16b137c67cdddc2cf893c5d7 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:51 +0200 Subject: ide: remove ->dma_{status,command} fields from ide_hwif_t * Use ->dma_base + offset instead of ->dma_{status,command} and remove no longer needed ->dma_{status,command}. While at it: * Use ATA_DMA_* defines. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-dma.c | 42 +++++++++++++++++++++--------------------- drivers/ide/ide-iops.c | 4 ++-- drivers/ide/pci/cmd64x.c | 12 ++++++------ drivers/ide/pci/hpt366.c | 10 +++++----- drivers/ide/pci/ns87415.c | 14 +++++++------- drivers/ide/pci/pdc202xx_old.c | 2 +- drivers/ide/pci/piix.c | 4 ++-- drivers/ide/pci/scc_pata.c | 38 ++++++++++++++++++-------------------- drivers/ide/pci/siimage.c | 4 ++-- drivers/ide/pci/sl82c105.c | 4 ++-- drivers/ide/pci/tc86c001.c | 13 ++++++++----- include/linux/ide.h | 2 -- 12 files changed, 74 insertions(+), 75 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index f3229642c052..d98a9da2699c 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -377,9 +377,10 @@ void ide_dma_host_set(ide_drive_t *drive, int on) dma_stat &= ~(1 << (5 + unit)); if (hwif->host_flags & IDE_HFLAG_MMIO) - writeb(dma_stat, (void __iomem *)hwif->dma_status); + writeb(dma_stat, + (void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)); else - outb(dma_stat, hwif->dma_status); + outb(dma_stat, hwif->dma_base + ATA_DMA_STATUS); } EXPORT_SYMBOL_GPL(ide_dma_host_set); @@ -475,18 +476,19 @@ int ide_dma_setup(ide_drive_t *drive) /* specify r/w */ if (mmio) - writeb(reading, (void __iomem *)hwif->dma_command); + writeb(reading, (void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); else - outb(reading, hwif->dma_command); + outb(reading, hwif->dma_base + ATA_DMA_CMD); /* read DMA status for INTR & ERROR flags */ dma_stat = hwif->read_sff_dma_status(hwif); /* clear INTR & ERROR flags */ if (mmio) - writeb(dma_stat | 6, (void __iomem *)hwif->dma_status); + writeb(dma_stat | 6, + (void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)); else - outb(dma_stat | 6, hwif->dma_status); + outb(dma_stat | 6, hwif->dma_base + ATA_DMA_STATUS); drive->waiting_for_dma = 1; return 0; @@ -512,12 +514,13 @@ void ide_dma_start(ide_drive_t *drive) * we do this part before issuing the drive cmd. */ if (hwif->host_flags & IDE_HFLAG_MMIO) { - dma_cmd = readb((void __iomem *)hwif->dma_command); + dma_cmd = readb((void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); /* start DMA */ - writeb(dma_cmd | 1, (void __iomem *)hwif->dma_command); + writeb(dma_cmd | 1, + (void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); } else { - dma_cmd = inb(hwif->dma_command); - outb(dma_cmd | 1, hwif->dma_command); + dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); + outb(dma_cmd | 1, hwif->dma_base + ATA_DMA_CMD); } hwif->dma = 1; @@ -537,12 +540,13 @@ int __ide_dma_end (ide_drive_t *drive) if (mmio) { /* get DMA command mode */ - dma_cmd = readb((void __iomem *)hwif->dma_command); + dma_cmd = readb((void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); /* stop DMA */ - writeb(dma_cmd & ~1, (void __iomem *)hwif->dma_command); + writeb(dma_cmd & ~1, + (void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); } else { - dma_cmd = inb(hwif->dma_command); - outb(dma_cmd & ~1, hwif->dma_command); + dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); + outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); } /* get DMA status */ @@ -550,9 +554,10 @@ int __ide_dma_end (ide_drive_t *drive) if (mmio) /* clear the INTR & ERROR bits */ - writeb(dma_stat | 6, (void __iomem *)hwif->dma_status); + writeb(dma_stat | 6, + (void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)); else - outb(dma_stat | 6, hwif->dma_status); + outb(dma_stat | 6, hwif->dma_base + ATA_DMA_STATUS); /* purge DMA mappings */ ide_destroy_dmatable(drive); @@ -888,11 +893,6 @@ void ide_setup_dma(ide_hwif_t *hwif, unsigned long base) { hwif->dma_base = base; - if (!hwif->dma_command) - hwif->dma_command = hwif->dma_base + 0; - if (!hwif->dma_status) - hwif->dma_status = hwif->dma_base + 2; - hwif->dma_ops = &sff_dma_ops; } diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index a09bf4369ed8..17cad6c39ee3 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -106,9 +106,9 @@ void SELECT_MASK(ide_drive_t *drive, int mask) static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) - return readb((void __iomem *)hwif->dma_status); + return readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)); else - return inb(hwif->dma_status); + return inb(hwif->dma_base + ATA_DMA_STATUS); } static void ide_tf_load(ide_drive_t *drive, ide_task_t *task) diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c index cfa784bacf48..ce58bfcdb3c6 100644 --- a/drivers/ide/pci/cmd64x.c +++ b/drivers/ide/pci/cmd64x.c @@ -262,7 +262,7 @@ static int cmd648_dma_test_irq(ide_drive_t *drive) unsigned long base = hwif->dma_base - (hwif->channel * 8); u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 : MRDMODE_INTR_CH0; - u8 dma_stat = inb(hwif->dma_status); + u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); u8 mrdmode = inb(base + 1); #ifdef DEBUG @@ -286,7 +286,7 @@ static int cmd64x_dma_test_irq(ide_drive_t *drive) int irq_reg = hwif->channel ? ARTTIM23 : CFR; u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 : CFR_INTR_CH0; - u8 dma_stat = inb(hwif->dma_status); + u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); u8 irq_stat = 0; (void) pci_read_config_byte(dev, irq_reg, &irq_stat); @@ -317,13 +317,13 @@ static int cmd646_1_dma_end(ide_drive_t *drive) drive->waiting_for_dma = 0; /* get DMA status */ - dma_stat = inb(hwif->dma_status); + dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); /* read DMA command state */ - dma_cmd = inb(hwif->dma_command); + dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); /* stop DMA */ - outb(dma_cmd & ~1, hwif->dma_command); + outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); /* clear the INTR & ERROR bits */ - outb(dma_stat | 6, hwif->dma_status); + outb(dma_stat | 6, hwif->dma_base + ATA_DMA_STATUS); /* and free any DMA resources */ ide_destroy_dmatable(drive); /* verify good DMA status */ diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index 397c6cbe953c..d2f470ec8055 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -801,9 +801,9 @@ static void hpt370_irq_timeout(ide_drive_t *drive) printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff); /* get DMA command mode */ - dma_cmd = inb(hwif->dma_command); + dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); /* stop DMA */ - outb(dma_cmd & ~0x1, hwif->dma_command); + outb(dma_cmd & ~0x1, hwif->dma_base + ATA_DMA_CMD); hpt370_clear_engine(drive); } @@ -818,12 +818,12 @@ static void hpt370_dma_start(ide_drive_t *drive) static int hpt370_dma_end(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - u8 dma_stat = inb(hwif->dma_status); + u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); if (dma_stat & 0x01) { /* wait a little */ udelay(20); - dma_stat = inb(hwif->dma_status); + dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); if (dma_stat & 0x01) hpt370_irq_timeout(drive); } @@ -850,7 +850,7 @@ static int hpt374_dma_test_irq(ide_drive_t *drive) return 0; } - dma_stat = inb(hwif->dma_status); + dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); /* return 1 if INTR asserted */ if (dma_stat & 4) return 1; diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index 9ffdbb89df5c..76ce112fd857 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -65,7 +65,7 @@ static u8 superio_ide_inb (unsigned long port) static u8 superio_read_sff_dma_status(ide_hwif_t *hwif) { - return superio_ide_inb(hwif->dma_status); + return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS); } static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) @@ -208,13 +208,13 @@ static int ns87415_dma_end(ide_drive_t *drive) drive->waiting_for_dma = 0; dma_stat = hwif->read_sff_dma_status(hwif); - /* get dma command mode */ - dma_cmd = inb(hwif->dma_command); + /* get DMA command mode */ + dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); /* stop DMA */ - outb(dma_cmd & ~1, hwif->dma_command); + outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); /* from ERRATA: clear the INTR & ERROR bits */ - dma_cmd = inb(hwif->dma_command); - outb(dma_cmd | 6, hwif->dma_command); + dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); + outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD); /* and free any DMA resources */ ide_destroy_dmatable(drive); /* verify good DMA status */ @@ -298,7 +298,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) if (!hwif->dma_base) return; - outb(0x60, hwif->dma_status); + outb(0x60, hwif->dma_base + ATA_DMA_STATUS); } static const struct ide_port_ops ns87415_port_ops = { diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index fca89eda5c02..1c2f9df31129 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -206,7 +206,7 @@ static int pdc202xx_dma_test_irq(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); unsigned long high_16 = hwif->extra_base - 16; - u8 dma_stat = inb(hwif->dma_status); + u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); u8 sc1d = inb(high_16 + 0x001d); if (hwif->channel) { diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c index f04738d14a6f..0ce41b4dddaf 100644 --- a/drivers/ide/pci/piix.c +++ b/drivers/ide/pci/piix.c @@ -227,9 +227,9 @@ static void piix_dma_clear_irq(ide_drive_t *drive) u8 dma_stat; /* clear the INTR & ERROR bits */ - dma_stat = inb(hwif->dma_status); + dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); /* Should we force the bit as well ? */ - outb(dma_stat, hwif->dma_status); + outb(dma_stat, hwif->dma_base + ATA_DMA_STATUS); } struct ich_laptop { diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 7a2a7b2a319a..fc163a7772a7 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -128,7 +128,7 @@ static u8 scc_ide_inb(unsigned long port) static u8 scc_read_sff_dma_status(ide_hwif_t *hwif) { - return (u8)in_be32((void *)hwif->dma_status); + return (u8)in_be32((void *)(hwif->dma_base + 4)); } static void scc_ide_insw(unsigned long port, void *addr, u32 count) @@ -266,14 +266,14 @@ static void scc_dma_host_set(ide_drive_t *drive, int on) { ide_hwif_t *hwif = drive->hwif; u8 unit = (drive->select.b.unit & 0x01); - u8 dma_stat = scc_ide_inb(hwif->dma_status); + u8 dma_stat = scc_ide_inb(hwif->dma_base + 4); if (on) dma_stat |= (1 << (5 + unit)); else dma_stat &= ~(1 << (5 + unit)); - scc_ide_outb(dma_stat, hwif->dma_status); + scc_ide_outb(dma_stat, hwif->dma_base + 4); } /** @@ -309,13 +309,13 @@ static int scc_dma_setup(ide_drive_t *drive) out_be32((void __iomem *)(hwif->dma_base + 8), hwif->dmatable_dma); /* specify r/w */ - out_be32((void __iomem *)hwif->dma_command, reading); + out_be32((void __iomem *)hwif->dma_base, reading); - /* read dma_status for INTR & ERROR flags */ - dma_stat = in_be32((void __iomem *)hwif->dma_status); + /* read DMA status for INTR & ERROR flags */ + dma_stat = in_be32((void __iomem *)(hwif->dma_base + 4)); /* clear INTR & ERROR flags */ - out_be32((void __iomem *)hwif->dma_status, dma_stat|6); + out_be32((void __iomem *)(hwif->dma_base + 4), dma_stat | 6); drive->waiting_for_dma = 1; return 0; } @@ -323,10 +323,10 @@ static int scc_dma_setup(ide_drive_t *drive) static void scc_dma_start(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - u8 dma_cmd = scc_ide_inb(hwif->dma_command); + u8 dma_cmd = scc_ide_inb(hwif->dma_base); /* start DMA */ - scc_ide_outb(dma_cmd | 1, hwif->dma_command); + scc_ide_outb(dma_cmd | 1, hwif->dma_base); hwif->dma = 1; wmb(); } @@ -338,13 +338,13 @@ static int __scc_dma_end(ide_drive_t *drive) drive->waiting_for_dma = 0; /* get DMA command mode */ - dma_cmd = scc_ide_inb(hwif->dma_command); + dma_cmd = scc_ide_inb(hwif->dma_base); /* stop DMA */ - scc_ide_outb(dma_cmd & ~1, hwif->dma_command); + scc_ide_outb(dma_cmd & ~1, hwif->dma_base); /* get DMA status */ - dma_stat = scc_ide_inb(hwif->dma_status); + dma_stat = scc_ide_inb(hwif->dma_base + 4); /* clear the INTR & ERROR bits */ - scc_ide_outb(dma_stat | 6, hwif->dma_status); + scc_ide_outb(dma_stat | 6, hwif->dma_base + 4); /* purge DMA mappings */ ide_destroy_dmatable(drive); /* verify good DMA status */ @@ -364,6 +364,7 @@ static int __scc_dma_end(ide_drive_t *drive) static int scc_dma_end(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); + void __iomem *dma_base = (void __iomem *)hwif->dma_base; unsigned long intsts_port = hwif->dma_base + 0x014; u32 reg; int dma_stat, data_loss = 0; @@ -402,7 +403,7 @@ static int scc_dma_end(ide_drive_t *drive) printk(KERN_WARNING "%s: SERROR\n", SCC_PATA_NAME); out_be32((void __iomem *)intsts_port, INTSTS_SERROR|INTSTS_BMSINT); - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); continue; } @@ -417,7 +418,7 @@ static int scc_dma_end(ide_drive_t *drive) out_be32((void __iomem *)intsts_port, INTSTS_PRERR|INTSTS_BMSINT); - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); continue; } @@ -425,12 +426,12 @@ static int scc_dma_end(ide_drive_t *drive) printk(KERN_WARNING "%s: Response Error\n", SCC_PATA_NAME); out_be32((void __iomem *)intsts_port, INTSTS_RERR|INTSTS_BMSINT); - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); continue; } if (reg & INTSTS_ICERR) { - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); printk(KERN_WARNING "%s: Illegal Configuration\n", SCC_PATA_NAME); out_be32((void __iomem *)intsts_port, INTSTS_ICERR|INTSTS_BMSINT); @@ -832,9 +833,6 @@ static void __devinit init_hwif_scc(ide_hwif_t *hwif) ports->hwif = hwif; - hwif->dma_command = hwif->dma_base; - hwif->dma_status = hwif->dma_base + 0x04; - /* PTERADD */ out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma); diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c index 6e9d7655d89c..21d7137f7d6c 100644 --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -334,7 +334,7 @@ static int siimage_io_dma_test_irq(ide_drive_t *drive) unsigned long addr = siimage_selreg(hwif, 1); /* return 1 if INTR asserted */ - if (hwif->INB(hwif->dma_status) & 4) + if (inb(hwif->dma_base + ATA_DMA_STATUS) & 4) return 1; /* return 1 if Device INTR asserted */ @@ -382,7 +382,7 @@ static int siimage_mmio_dma_test_irq(ide_drive_t *drive) } /* return 1 if INTR asserted */ - if (readb((void __iomem *)hwif->dma_status) & 0x04) + if (readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)) & 4) return 1; /* return 1 if Device INTR asserted */ diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c index 6efbde297174..f82a6502c1b7 100644 --- a/drivers/ide/pci/sl82c105.c +++ b/drivers/ide/pci/sl82c105.c @@ -157,9 +157,9 @@ static void sl82c105_dma_lost_irq(ide_drive_t *drive) * Was DMA enabled? If so, disable it - we're resetting the * host. The IDE layer will be handling the drive for us. */ - dma_cmd = inb(hwif->dma_command); + dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); if (dma_cmd & 1) { - outb(dma_cmd & ~1, hwif->dma_command); + outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); printk("sl82c105: DMA was enabled\n"); } diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c index 9b4b27a4c711..a81d47c55ce1 100644 --- a/drivers/ide/pci/tc86c001.c +++ b/drivers/ide/pci/tc86c001.c @@ -63,7 +63,7 @@ static int tc86c001_timer_expiry(ide_drive_t *drive) ide_hwif_t *hwif = HWIF(drive); ide_expiry_t *expiry = ide_get_hwifdata(hwif); ide_hwgroup_t *hwgroup = HWGROUP(drive); - u8 dma_stat = inb(hwif->dma_status); + u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); /* Restore a higher level driver's expiry handler first. */ hwgroup->expiry = expiry; @@ -71,21 +71,24 @@ static int tc86c001_timer_expiry(ide_drive_t *drive) if ((dma_stat & 5) == 1) { /* DMA active and no interrupt */ unsigned long sc_base = hwif->config_data; unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04); - u8 dma_cmd = inb(hwif->dma_command); + u8 dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); printk(KERN_WARNING "%s: DMA interrupt possibly stuck, " "attempting recovery...\n", drive->name); /* Stop DMA */ - outb(dma_cmd & ~0x01, hwif->dma_command); + outb(dma_cmd & ~0x01, hwif->dma_base + ATA_DMA_CMD); /* Setup the dummy DMA transfer */ outw(0, sc_base + 0x0a); /* Sector Count */ outw(0, twcr_port); /* Transfer Word Count 1 or 2 */ /* Start the dummy DMA transfer */ - outb(0x00, hwif->dma_command); /* clear R_OR_WCTR for write */ - outb(0x01, hwif->dma_command); /* set START_STOPBM */ + + /* clear R_OR_WCTR for write */ + outb(0x00, hwif->dma_base + ATA_DMA_CMD); + /* set START_STOPBM */ + outb(0x01, hwif->dma_base + ATA_DMA_CMD); /* * If an interrupt was pending, it should come thru shortly. diff --git a/include/linux/ide.h b/include/linux/ide.h index ca0efbb0a8b4..85a32f472ef0 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -526,8 +526,6 @@ typedef struct hwif_s { int irq; /* our irq number */ unsigned long dma_base; /* base addr for dma ports */ - unsigned long dma_command; /* dma command register */ - unsigned long dma_status; /* dma status register */ unsigned long config_data; /* for use by chipset-specific code */ unsigned long select_data; /* for use by chipset-specific code */ -- cgit v1.2.3 From 81e8d5a34f7d2a2acbe309cfa5810a9699a63239 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:51 +0200 Subject: ide: remove ide_setup_dma() Export sff_dma_ops and then remove ide_setup_dma(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/palm_bk3710.c | 7 +++---- drivers/ide/ide-dma.c | 12 ++---------- drivers/ide/pci/alim15x3.c | 4 +++- drivers/ide/pci/hpt366.c | 4 +++- drivers/ide/setup-pci.c | 4 +++- include/linux/ide.h | 2 +- 6 files changed, 15 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index 023c10753f15..0229d794d909 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -316,15 +316,14 @@ static u8 __devinit palm_bk3710_cable_detect(ide_hwif_t *hwif) static int __devinit palm_bk3710_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d) { - unsigned long base = - hwif->io_ports.data_addr - IDE_PALM_ATA_PRI_REG_OFFSET; - printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); if (ide_allocate_dma_engine(hwif)) return -1; - ide_setup_dma(hwif, base); + hwif->dma_base = hwif->io_ports.data_addr - IDE_PALM_ATA_PRI_REG_OFFSET; + + hwif->dma_ops = &sff_dma_ops; return 0; } diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index d98a9da2699c..ac342ebf6c54 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -878,7 +878,7 @@ int ide_allocate_dma_engine(ide_hwif_t *hwif) } EXPORT_SYMBOL_GPL(ide_allocate_dma_engine); -static const struct ide_dma_ops sff_dma_ops = { +const struct ide_dma_ops sff_dma_ops = { .dma_host_set = ide_dma_host_set, .dma_setup = ide_dma_setup, .dma_exec_cmd = ide_dma_exec_cmd, @@ -888,13 +888,5 @@ static const struct ide_dma_ops sff_dma_ops = { .dma_timeout = ide_dma_timeout, .dma_lost_irq = ide_dma_lost_irq, }; - -void ide_setup_dma(ide_hwif_t *hwif, unsigned long base) -{ - hwif->dma_base = base; - - hwif->dma_ops = &sff_dma_ops; -} - -EXPORT_SYMBOL_GPL(ide_setup_dma); +EXPORT_SYMBOL_GPL(sff_dma_ops); #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c index 80d19c0eb780..8015f6f65488 100644 --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -483,7 +483,9 @@ static int __devinit init_dma_ali15x3(ide_hwif_t *hwif, if (ide_allocate_dma_engine(hwif)) return -1; - ide_setup_dma(hwif, base); + hwif->dma_base = base; + + hwif->dma_ops = &sff_dma_ops; return 0; } diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index d2f470ec8055..201e5ddae921 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -1346,7 +1346,9 @@ static int __devinit init_dma_hpt366(ide_hwif_t *hwif, if (ide_allocate_dma_engine(hwif)) return -1; - ide_setup_dma(hwif, base); + hwif->dma_base = base; + + hwif->dma_ops = &sff_dma_ops; return 0; } diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index acb467c6f345..b047013f3652 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -377,7 +377,9 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) if (ide_allocate_dma_engine(hwif)) return -1; - ide_setup_dma(hwif, base); + hwif->dma_base = base; + + hwif->dma_ops = &sff_dma_ops; } return 0; diff --git a/include/linux/ide.h b/include/linux/ide.h index 85a32f472ef0..6d774607e32a 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1007,6 +1007,7 @@ void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); #ifdef CONFIG_BLK_DEV_IDEDMA_PCI int ide_pci_set_master(struct pci_dev *, const char *); unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); +extern const struct ide_dma_ops sff_dma_ops; int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); #else static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, @@ -1164,7 +1165,6 @@ void ide_destroy_dmatable(ide_drive_t *); extern int ide_build_dmatable(ide_drive_t *, struct request *); int ide_allocate_dma_engine(ide_hwif_t *); void ide_release_dma_engine(ide_hwif_t *); -void ide_setup_dma(ide_hwif_t *, unsigned long); void ide_dma_host_set(ide_drive_t *, int); extern int ide_dma_setup(ide_drive_t *); -- cgit v1.2.3 From ebb00fb55d0566bb3e81518122a57b4b3bedf1e4 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:51 +0200 Subject: ide: factor out simplex handling from ide_pci_dma_base() * Factor out simplex handling from ide_pci_dma_base() to ide_pci_check_simplex(). * Set hwif->dma_base early in ->init_dma method / ide_hwif_setup_dma() and reset it in ide_init_port() if DMA initialization fails. * Use ->read_sff_dma_status instead of ->INB in ide_pci_dma_base(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-probe.c | 1 + drivers/ide/pci/alim15x3.c | 12 +++++++++--- drivers/ide/pci/hpt366.c | 12 +++++++++--- drivers/ide/setup-pci.c | 35 +++++++++++++++++++++++------------ include/linux/ide.h | 1 + 5 files changed, 43 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 9d8686a49fcf..ec5f58c6f19a 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1363,6 +1363,7 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port, if (rc < 0) { printk(KERN_INFO "%s: DMA disabled\n", hwif->name); + hwif->dma_base = 0; hwif->swdma_mask = 0; hwif->mwdma_mask = 0; hwif->ultra_mask = 0; diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c index 8015f6f65488..5ef7817ac64f 100644 --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -471,7 +471,15 @@ static int __devinit init_dma_ali15x3(ide_hwif_t *hwif, struct pci_dev *dev = to_pci_dev(hwif->dev); unsigned long base = ide_pci_dma_base(hwif, d); - if (base == 0 || ide_pci_set_master(dev, d->name) < 0) + if (base == 0) + return -1; + + hwif->dma_base = base; + + if (ide_pci_check_simplex(hwif, d) < 0) + return -1; + + if (ide_pci_set_master(dev, d->name) < 0) return -1; if (!hwif->channel) @@ -483,8 +491,6 @@ static int __devinit init_dma_ali15x3(ide_hwif_t *hwif, if (ide_allocate_dma_engine(hwif)) return -1; - hwif->dma_base = base; - hwif->dma_ops = &sff_dma_ops; return 0; diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index 201e5ddae921..e5651cefa395 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -1320,7 +1320,15 @@ static int __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long flags, base = ide_pci_dma_base(hwif, d); u8 dma_old, dma_new, masterdma = 0, slavedma = 0; - if (base == 0 || ide_pci_set_master(dev, d->name) < 0) + if (base == 0) + return -1; + + hwif->dma_base = base; + + if (ide_pci_check_simplex(hwif, d) < 0) + return -1; + + if (ide_pci_set_master(dev, d->name) < 0) return -1; dma_old = inb(base + 2); @@ -1346,8 +1354,6 @@ static int __devinit init_dma_hpt366(ide_hwif_t *hwif, if (ide_allocate_dma_engine(hwif)) return -1; - hwif->dma_base = base; - hwif->dma_ops = &sff_dma_ops; return 0; diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index b047013f3652..c1b609d9cb28 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -73,15 +73,12 @@ static void ide_pci_clear_simplex(unsigned long dma_base, const char *name) * @d: IDE port info * * Fetch the DMA Bus-Master-I/O-Base-Address (BMIBA) from PCI space. - * Where a device has a partner that is already in DMA mode we check - * and enforce IDE simplex rules. */ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) { struct pci_dev *dev = to_pci_dev(hwif->dev); unsigned long dma_base = 0; - u8 dma_stat = 0; if (hwif->host_flags & IDE_HFLAG_MMIO) return hwif->dma_base; @@ -102,11 +99,19 @@ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) if (hwif->channel) dma_base += 8; - if (d->host_flags & IDE_HFLAG_CS5520) + return dma_base; +} +EXPORT_SYMBOL_GPL(ide_pci_dma_base); + +int ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) +{ + u8 dma_stat; + + if (d->host_flags & (IDE_HFLAG_MMIO | IDE_HFLAG_CS5520)) goto out; if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) { - ide_pci_clear_simplex(dma_base, d->name); + ide_pci_clear_simplex(hwif->dma_base, d->name); goto out; } @@ -120,15 +125,15 @@ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) * we tune the drive then try to grab DMA ownership if we want to be * the DMA end. This has to be become dynamic to handle hot-plug. */ - dma_stat = hwif->INB(dma_base + 2); + dma_stat = hwif->read_sff_dma_status(hwif); if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name); - dma_base = 0; + return -1; } out: - return dma_base; + return 0; } -EXPORT_SYMBOL_GPL(ide_pci_dma_base); +EXPORT_SYMBOL_GPL(ide_pci_check_simplex); /* * Set up BM-DMA capability (PnP BIOS should have done this) @@ -363,7 +368,15 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) (dev->class & 0x80))) { unsigned long base = ide_pci_dma_base(hwif, d); - if (base == 0 || ide_pci_set_master(dev, d->name) < 0) + if (base == 0) + return -1; + + hwif->dma_base = base; + + if (ide_pci_check_simplex(hwif, d) < 0) + return -1; + + if (ide_pci_set_master(dev, d->name) < 0) return -1; if (hwif->host_flags & IDE_HFLAG_MMIO) @@ -377,8 +390,6 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) if (ide_allocate_dma_engine(hwif)) return -1; - hwif->dma_base = base; - hwif->dma_ops = &sff_dma_ops; } diff --git a/include/linux/ide.h b/include/linux/ide.h index 6d774607e32a..a179a7f6e444 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1008,6 +1008,7 @@ void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); int ide_pci_set_master(struct pci_dev *, const char *); unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); extern const struct ide_dma_ops sff_dma_ops; +int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); #else static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, -- cgit v1.2.3 From c6dfa867bb45f4bff2e48f3bc89ab1d6a7ab4c21 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:51 +0200 Subject: ide: add ->exec_command method Add ->exec_command method for writing ATA Command register and use it instead of ->OUTBSYNC. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-io.c | 3 +-- drivers/ide/ide-iops.c | 19 ++++++++++++++----- drivers/ide/ide-probe.c | 6 +++--- drivers/ide/ide-taskfile.c | 2 +- drivers/ide/pci/scc_pata.c | 9 +++++++++ drivers/ide/ppc/pmac.c | 9 +++++++++ drivers/scsi/ide-scsi.c | 3 +-- include/linux/ide.h | 3 ++- 8 files changed, 40 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 661b75a89d4d..ca0c04a919cb 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -437,8 +437,7 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, - hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); if (rq->errors >= ERROR_MAX) { ide_kill_rq(drive, rq); diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 17cad6c39ee3..d8db25581909 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -103,6 +103,14 @@ void SELECT_MASK(ide_drive_t *drive, int mask) port_ops->maskproc(drive, mask); } +static void ide_exec_command(ide_hwif_t *hwif, u8 cmd) +{ + if (hwif->host_flags & IDE_HFLAG_MMIO) + writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); + else + outb(cmd, hwif->io_ports.command_addr); +} + static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) @@ -331,6 +339,7 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq, void default_hwif_transport(ide_hwif_t *hwif) { + hwif->exec_command = ide_exec_command; hwif->read_sff_dma_status = ide_read_sff_dma_status; hwif->tf_load = ide_tf_load; @@ -696,7 +705,7 @@ int ide_driveid_update(ide_drive_t *drive) SELECT_MASK(drive, 1); ide_set_irq(drive, 0); msleep(50); - hwif->OUTBSYNC(hwif, WIN_IDENTIFY, hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_IDENTIFY); timeout = jiffies + WAIT_WORSTCASE; do { if (time_after(jiffies, timeout)) { @@ -783,7 +792,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) ide_set_irq(drive, 0); hwif->OUTB(speed, io_ports->nsect_addr); hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr); - hwif->OUTBSYNC(hwif, WIN_SETFEATURES, io_ports->command_addr); + hwif->exec_command(hwif, WIN_SETFEATURES); if (drive->quirk_list == 2) ide_set_irq(drive, 1); @@ -891,7 +900,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler, spin_lock_irqsave(&ide_lock, flags); __ide_set_handler(drive, handler, timeout, expiry); - hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); + hwif->exec_command(hwif, cmd); /* * Drive takes 400nS to respond, we must avoid the IRQ being * serviced before that. @@ -909,7 +918,7 @@ void ide_execute_pkt_cmd(ide_drive_t *drive) unsigned long flags; spin_lock_irqsave(&ide_lock, flags); - hwif->OUTBSYNC(hwif, WIN_PACKETCMD, hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_PACKETCMD); ndelay(400); spin_unlock_irqrestore(&ide_lock, flags); } @@ -1116,7 +1125,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) pre_reset(drive); SELECT_DRIVE(drive); udelay (20); - hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); + hwif->exec_command(hwif, WIN_SRST); ndelay(400); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; hwgroup->polling = 1; diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index ec5f58c6f19a..d1e834a1c5cd 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -295,7 +295,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) hwif->OUTB(0, io_ports->feature_addr); /* ask drive for ID */ - hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); + hwif->exec_command(hwif, cmd); timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; timeout += jiffies; @@ -482,7 +482,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) msleep(50); SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); + hwif->exec_command(hwif, WIN_SRST); (void)ide_busy_sleep(hwif); rc = try_to_identify(drive, cmd); } @@ -518,7 +518,7 @@ static void enable_nest (ide_drive_t *drive) printk("%s: enabling %s -- ", hwif->name, drive->id->model); SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(hwif, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr); + hwif->exec_command(hwif, EXABYTE_ENABLE_NEST); if (ide_busy_sleep(hwif)) { printk(KERN_CONT "failed (timeout)\n"); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 1fbdb746dc88..c56be289417e 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -88,7 +88,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) switch (task->data_phase) { case TASKFILE_MULTI_OUT: case TASKFILE_OUT: - hwif->OUTBSYNC(hwif, tf->command, hwif->io_ports.command_addr); + hwif->exec_command(hwif, tf->command); ndelay(400); /* FIXME */ return pre_task_out_intr(drive, task->rq); case TASKFILE_MULTI_IN: diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index fc163a7772a7..d140dfd565a4 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -126,6 +126,14 @@ static u8 scc_ide_inb(unsigned long port) return (u8)data; } +static void scc_exec_command(ide_hwif_t *hwif, u8 cmd) +{ + out_be32((void *)hwif->io_ports.command_addr, cmd); + eieio(); + in_be32((void *)(hwif->dma_base + 0x01c)); + eieio(); +} + static u8 scc_read_sff_dma_status(ide_hwif_t *hwif) { return (u8)in_be32((void *)(hwif->dma_base + 4)); @@ -779,6 +787,7 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) ide_set_hwifdata(hwif, ports); + hwif->exec_command = scc_exec_command; hwif->read_sff_dma_status = scc_read_sff_dma_status; hwif->tf_load = scc_tf_load; diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index e68e33bb2c35..7c3a84f8fbed 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -495,6 +495,13 @@ static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) + IDE_TIMING_CONFIG)); } +static void pmac_exec_command(ide_hwif_t *hwif, u8 cmd) +{ + writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); + (void)readl((void __iomem *)(hwif->io_ports.data_addr + + IDE_TIMING_CONFIG)); +} + /* * Old tuning functions (called on hdparm -p), sets up drive PIO timings */ @@ -1092,6 +1099,8 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) if (hwif == NULL) return -ENOENT; + hwif->exec_command = pmac_exec_command; + /* Setup MMIO ops */ default_hwif_mmiops(hwif); hwif->OUTBSYNC = pmac_outbsync; diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index f843c1383a4b..80123890ced0 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -248,8 +248,7 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, - hwif->io_ports.command_addr); + hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); rq->errors++; diff --git a/include/linux/ide.h b/include/linux/ide.h index a179a7f6e444..d77c1994d0e3 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -489,7 +489,8 @@ typedef struct hwif_s { const struct ide_port_ops *port_ops; const struct ide_dma_ops *dma_ops; - u8 (*read_sff_dma_status)(struct hwif_s *); + void (*exec_command)(struct hwif_s *, u8); + u8 (*read_sff_dma_status)(struct hwif_s *); void (*tf_load)(ide_drive_t *, struct ide_task_s *); void (*tf_read)(ide_drive_t *, struct ide_task_s *); -- cgit v1.2.3 From b73c7ee25da6133f97f47ffd3557288417da7c76 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:52 +0200 Subject: ide: add ->read_status method * Remove ide_read_status() inline helper. * Add ->read_status method for reading ATA Status register and use it instead of ->INB. While at it: * Don't use HWGROUP() macro. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/icside.c | 4 +++- drivers/ide/ide-atapi.c | 2 +- drivers/ide/ide-cd.c | 12 ++++++++---- drivers/ide/ide-dma.c | 5 +++-- drivers/ide/ide-floppy.c | 3 ++- drivers/ide/ide-io.c | 19 ++++++++++--------- drivers/ide/ide-iops.c | 33 ++++++++++++++++++++++----------- drivers/ide/ide-probe.c | 22 +++++++++++----------- drivers/ide/ide-tape.c | 6 ++++-- drivers/ide/ide-taskfile.c | 23 ++++++++++++++--------- drivers/ide/pci/ns87415.c | 8 +++++++- drivers/ide/pci/scc_pata.c | 6 ++++++ drivers/ide/pci/sgiioc4.c | 19 ++++++++++--------- drivers/scsi/ide-scsi.c | 2 +- include/linux/ide.h | 8 +------- 15 files changed, 103 insertions(+), 69 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index 850fe9342a1f..f73422dd8474 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -375,12 +375,14 @@ static int icside_dma_test_irq(ide_drive_t *drive) static void icside_dma_timeout(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; + printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name); if (icside_dma_test_irq(drive)) return; - ide_dump_status(drive, "DMA timeout", ide_read_status(drive)); + ide_dump_status(drive, "DMA timeout", hwif->read_status(hwif)); icside_dma_end(drive); } diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 2802031de670..6554c4225a05 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -35,7 +35,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, } /* Clear the interrupt */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { if (hwif->dma_ops->dma_end(drive) || diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 6e29dd532090..82879a1a89e5 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -280,11 +280,12 @@ static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st) */ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) { - struct request *rq = HWGROUP(drive)->rq; + ide_hwif_t *hwif = drive->hwif; + struct request *rq = hwif->hwgroup->rq; int stat, err, sense_key; /* check for errors */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (stat_ret) *stat_ret = stat; @@ -606,6 +607,8 @@ static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, int len, int ireason, int rw) { + ide_hwif_t *hwif = drive->hwif; + /* * ireason == 0: the drive wants to receive data from us * ireason == 2: the drive is expecting to transfer data to us @@ -624,7 +627,7 @@ static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, * Some drives (ASUS) seem to tell us that status info is * available. Just get it and ignore. */ - (void)ide_read_status(drive); + (void)hwif->read_status(hwif); return 0; } else { /* drive wants a command packet, or invalid ireason... */ @@ -1199,8 +1202,9 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, if (blk_fs_request(rq)) { if (info->cd_flags & IDE_CD_FLAG_SEEKING) { + ide_hwif_t *hwif = drive->hwif; unsigned long elapsed = jiffies - info->start_seek; - int stat = ide_read_status(drive); + int stat = hwif->read_status(hwif); if ((stat & SEEK_STAT) != SEEK_STAT) { if (elapsed < IDECD_SEEK_TIMEOUT) { diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index ac342ebf6c54..ecf60dbbe3e9 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -100,10 +100,11 @@ static const struct drive_list_entry drive_blacklist [] = { ide_startstop_t ide_dma_intr (ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; u8 stat = 0, dma_stat = 0; - dma_stat = drive->hwif->dma_ops->dma_end(drive); - stat = ide_read_status(drive); + dma_stat = hwif->dma_ops->dma_end(drive); + stat = hwif->read_status(hwif); if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) { if (!dma_stat) { diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 011d72011cc4..6f5294cfff23 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -949,11 +949,12 @@ static int idefloppy_get_format_progress(ide_drive_t *drive, int __user *arg) /* Else assume format_unit has finished, and we're at 0x10000 */ } else { + ide_hwif_t *hwif = drive->hwif; unsigned long flags; u8 stat; local_irq_save(flags); - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); local_irq_restore(flags); progress_indication = ((stat & SEEK_STAT) == 0) ? 0 : 0x10000; diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index ca0c04a919cb..fdc221ce9920 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -381,8 +381,7 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 if (err == ABRT_ERR) { if (drive->select.b.lba && /* some newer drives don't support WIN_SPECIFY */ - hwif->INB(hwif->io_ports.command_addr) == - WIN_SPECIFY) + hwif->read_status(hwif) == WIN_SPECIFY) return ide_stopped; } else if ((err & BAD_CRC) == BAD_CRC) { /* UDMA crc error, just retry the operation */ @@ -408,7 +407,7 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 return ide_stopped; } - if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) + if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) rq->errors |= ERROR_RESET; if ((rq->errors & ERROR_RESET) == ERROR_RESET) { @@ -435,7 +434,7 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u /* add decoding error stuff */ } - if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) + if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); @@ -711,7 +710,8 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, #ifdef DEBUG printk("%s: DRIVE_CMD (null)\n", drive->name); #endif - ide_end_drive_cmd(drive, ide_read_status(drive), ide_read_error(drive)); + ide_end_drive_cmd(drive, hwif->read_status(hwif), + ide_read_error(drive)); return ide_stopped; } @@ -1141,7 +1141,7 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) printk(KERN_WARNING "%s: DMA timeout error\n", drive->name); (void)hwif->dma_ops->dma_end(drive); ret = ide_error(drive, "dma timeout error", - ide_read_status(drive)); + hwif->read_status(hwif)); } else { printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name); hwif->dma_ops->dma_timeout(drive); @@ -1266,7 +1266,7 @@ void ide_timer_expiry (unsigned long data) } else startstop = ide_error(drive, "irq timeout", - ide_read_status(drive)); + hwif->read_status(hwif)); } drive->service_time = jiffies - drive->service_start; spin_lock_irq(&ide_lock); @@ -1322,7 +1322,8 @@ static void unexpected_intr (int irq, ide_hwgroup_t *hwgroup) */ do { if (hwif->irq == irq) { - stat = hwif->INB(hwif->io_ports.status_addr); + stat = hwif->read_status(hwif); + if (!OK_STAT(stat, READY_STAT, BAD_STAT)) { /* Try to not flood the console with msgs */ static unsigned long last_msgtime, count; @@ -1412,7 +1413,7 @@ irqreturn_t ide_intr (int irq, void *dev_id) * Whack the status register, just in case * we have a leftover pending IRQ. */ - (void) hwif->INB(hwif->io_ports.status_addr); + (void)hwif->read_status(hwif); #endif /* CONFIG_BLK_DEV_IDEPCI */ } spin_unlock_irqrestore(&ide_lock, flags); diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index d8db25581909..086eceaeeafd 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -111,6 +111,14 @@ static void ide_exec_command(ide_hwif_t *hwif, u8 cmd) outb(cmd, hwif->io_ports.command_addr); } +static u8 ide_read_status(ide_hwif_t *hwif) +{ + if (hwif->host_flags & IDE_HFLAG_MMIO) + return readb((void __iomem *)hwif->io_ports.status_addr); + else + return inb(hwif->io_ports.status_addr); +} + static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) @@ -340,6 +348,7 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq, void default_hwif_transport(ide_hwif_t *hwif) { hwif->exec_command = ide_exec_command; + hwif->read_status = ide_read_status; hwif->read_sff_dma_status = ide_read_sff_dma_status; hwif->tf_load = ide_tf_load; @@ -505,7 +514,7 @@ int drive_is_ready (ide_drive_t *drive) stat = ide_read_altstatus(drive); else /* Note: this may clear a pending IRQ!! */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (stat & BUSY_STAT) /* drive busy: definitely not interrupting */ @@ -530,24 +539,25 @@ EXPORT_SYMBOL(drive_is_ready); */ static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout, u8 *rstat) { + ide_hwif_t *hwif = drive->hwif; unsigned long flags; int i; u8 stat; udelay(1); /* spec allows drive 400ns to assert "BUSY" */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (stat & BUSY_STAT) { local_irq_set(flags); timeout += jiffies; - while ((stat = ide_read_status(drive)) & BUSY_STAT) { + while ((stat = hwif->read_status(hwif)) & BUSY_STAT) { if (time_after(jiffies, timeout)) { /* * One last read after the timeout in case * heavy interrupt load made us not make any * progress during the timeout.. */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (!(stat & BUSY_STAT)) break; @@ -567,7 +577,7 @@ static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long ti */ for (i = 0; i < 10; i++) { udelay(1); - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (OK_STAT(stat, good, bad)) { *rstat = stat; @@ -718,7 +728,7 @@ int ide_driveid_update(ide_drive_t *drive) } while (stat & BUSY_STAT); msleep(50); /* wait for IRQ and DRQ_STAT */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (!OK_STAT(stat, DRQ_STAT, BAD_R_STAT)) { SELECT_MASK(drive, 0); @@ -733,7 +743,7 @@ int ide_driveid_update(ide_drive_t *drive) return 0; } hwif->input_data(drive, NULL, id, SECTOR_SIZE); - (void)ide_read_status(drive); /* clear drive IRQ */ + (void)hwif->read_status(hwif); /* clear drive IRQ */ local_irq_enable(); local_irq_restore(flags); ide_fix_driveid(id); @@ -943,12 +953,13 @@ static ide_startstop_t do_reset1 (ide_drive_t *, int); */ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive) { - ide_hwgroup_t *hwgroup = HWGROUP(drive); + ide_hwif_t *hwif = drive->hwif; + ide_hwgroup_t *hwgroup = hwif->hwgroup; u8 stat; SELECT_DRIVE(drive); udelay (10); - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (OK_STAT(stat, 0, BUSY_STAT)) printk("%s: ATAPI reset complete\n", drive->name); @@ -994,7 +1005,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive) } } - tmp = ide_read_status(drive); + tmp = hwif->read_status(hwif); if (!OK_STAT(tmp, 0, BUSY_STAT)) { if (time_before(jiffies, hwgroup->poll_timeout)) { @@ -1208,7 +1219,7 @@ int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout) * about locking issues (2.5 work ?). */ mdelay(1); - stat = hwif->INB(hwif->io_ports.status_addr); + stat = hwif->read_status(hwif); if ((stat & BUSY_STAT) == 0) return 0; /* diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index d1e834a1c5cd..c42fcfedcbf6 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -276,7 +276,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) if (io_ports->ctl_addr) { a = ide_read_altstatus(drive); - s = ide_read_status(drive); + s = hwif->read_status(hwif); if ((a ^ s) & ~INDEX_STAT) /* ancient Seagate drives, broken interfaces */ printk(KERN_INFO "%s: probing with STATUS(0x%02x) " @@ -307,12 +307,12 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) /* give drive a breather */ msleep(50); s = use_altstatus ? ide_read_altstatus(drive) - : ide_read_status(drive); + : hwif->read_status(hwif); } while (s & BUSY_STAT); /* wait for IRQ and DRQ_STAT */ msleep(50); - s = ide_read_status(drive); + s = hwif->read_status(hwif); if (OK_STAT(s, DRQ_STAT, BAD_R_STAT)) { unsigned long flags; @@ -324,7 +324,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) /* drive responded with ID */ rc = 0; /* clear drive IRQ */ - (void)ide_read_status(drive); + (void)hwif->read_status(hwif); local_irq_restore(flags); } else { /* drive refused ID */ @@ -371,7 +371,7 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) ide_set_irq(drive, 0); /* clear drive IRQ */ - (void)ide_read_status(drive); + (void)hwif->read_status(hwif); udelay(5); irq = probe_irq_off(cookie); if (!hwif->irq) { @@ -396,7 +396,7 @@ static int ide_busy_sleep(ide_hwif_t *hwif) do { msleep(50); - stat = hwif->INB(hwif->io_ports.status_addr); + stat = hwif->read_status(hwif); if ((stat & BUSY_STAT) == 0) return 0; } while (time_before(jiffies, timeout)); @@ -461,7 +461,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) return 3; } - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (OK_STAT(stat, READY_STAT, BUSY_STAT) || drive->present || cmd == WIN_PIDENTIFY) { @@ -471,7 +471,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) rc = try_to_identify(drive,cmd); } - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (stat == (BUSY_STAT | READY_STAT)) return 4; @@ -488,7 +488,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) } /* ensure drive IRQ is clear */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (rc == 1) printk(KERN_ERR "%s: no response (status = 0x%02x)\n", @@ -502,7 +502,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) SELECT_DRIVE(&hwif->drives[0]); msleep(50); /* ensure drive irq is clear */ - (void)ide_read_status(drive); + (void)hwif->read_status(hwif); } return rc; } @@ -527,7 +527,7 @@ static void enable_nest (ide_drive_t *drive) msleep(50); - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (!OK_STAT(stat, 0, BAD_STAT)) printk(KERN_CONT "failed (status = 0x%02x)\n", stat); diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 353dd11b9283..ef54728a74b0 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -927,11 +927,12 @@ static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; struct ide_atapi_pc *pc = tape->pc; u8 stat; - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (stat & SEEK_STAT) { if (stat & ERR_STAT) { @@ -980,6 +981,7 @@ static void ide_tape_create_rw_cmd(idetape_tape_t *tape, static ide_startstop_t idetape_do_request(ide_drive_t *drive, struct request *rq, sector_t block) { + ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; struct ide_atapi_pc *pc = NULL; struct request *postponed_rq = tape->postponed_rq; @@ -1017,7 +1019,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, * If the tape is still busy, postpone our request and service * the other device meanwhile. */ - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (!drive->dsc_overlap && !(rq->cmd[0] & REQ_IDETAPE_PC2)) set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index c56be289417e..fc2b3957afac 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -124,7 +124,8 @@ EXPORT_SYMBOL_GPL(do_rw_taskfile); */ static ide_startstop_t set_multmode_intr(ide_drive_t *drive) { - u8 stat = ide_read_status(drive); + ide_hwif_t *hwif = drive->hwif; + u8 stat = hwif->read_status(hwif); if (OK_STAT(stat, READY_STAT, BAD_STAT)) drive->mult_count = drive->mult_req; @@ -141,10 +142,11 @@ static ide_startstop_t set_multmode_intr(ide_drive_t *drive) */ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; int retries = 5; u8 stat; - while (((stat = ide_read_status(drive)) & BUSY_STAT) && retries--) + while (((stat = hwif->read_status(hwif)) & BUSY_STAT) && retries--) udelay(10); if (OK_STAT(stat, READY_STAT, BAD_STAT)) @@ -162,7 +164,8 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) */ static ide_startstop_t recal_intr(ide_drive_t *drive) { - u8 stat = ide_read_status(drive); + ide_hwif_t *hwif = drive->hwif; + u8 stat = hwif->read_status(hwif); if (!OK_STAT(stat, READY_STAT, BAD_STAT)) return ide_error(drive, "recal_intr", stat); @@ -174,11 +177,12 @@ static ide_startstop_t recal_intr(ide_drive_t *drive) */ static ide_startstop_t task_no_data_intr(ide_drive_t *drive) { - ide_task_t *args = HWGROUP(drive)->rq->special; + ide_hwif_t *hwif = drive->hwif; + ide_task_t *args = hwif->hwgroup->rq->special; u8 stat; local_irq_enable_in_hardirq(); - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (!OK_STAT(stat, READY_STAT, BAD_STAT)) return ide_error(drive, "task_no_data_intr", stat); @@ -192,6 +196,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive) static u8 wait_drive_not_busy(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; int retries; u8 stat; @@ -200,7 +205,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive) * take up to 6 ms on some ATAPI devices, so we will wait max 10 ms. */ for (retries = 0; retries < 1000; retries++) { - stat = ide_read_status(drive); + stat = hwif->read_status(hwif); if (stat & BUSY_STAT) udelay(10); @@ -383,8 +388,8 @@ static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq static ide_startstop_t task_in_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - struct request *rq = HWGROUP(drive)->rq; - u8 stat = ide_read_status(drive); + struct request *rq = hwif->hwgroup->rq; + u8 stat = hwif->read_status(hwif); /* Error? */ if (stat & ERR_STAT) @@ -418,7 +423,7 @@ static ide_startstop_t task_out_intr (ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; struct request *rq = HWGROUP(drive)->rq; - u8 stat = ide_read_status(drive); + u8 stat = hwif->read_status(hwif); if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat)) return task_error(drive, rq, __func__, stat); diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index 76ce112fd857..b20e5f01ac89 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -63,6 +63,11 @@ static u8 superio_ide_inb (unsigned long port) return inb(port); } +static u8 superio_read_status(ide_hwif_t *hwif) +{ + return superio_ide_inb(hwif->io_ports.status_addr); +} + static u8 superio_read_sff_dma_status(ide_hwif_t *hwif) { return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS); @@ -127,6 +132,7 @@ static void __devinit superio_ide_init_iops (struct hwif_s *hwif) tmp = superio_ide_inb(superio_ide_dma_status[port]); outb(tmp | 0x66, superio_ide_dma_status[port]); + hwif->read_status = superio_read_status; hwif->read_sff_dma_status = superio_read_sff_dma_status; hwif->tf_read = superio_tf_read; @@ -283,7 +289,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) outb(8, hwif->io_ports.ctl_addr); do { udelay(50); - stat = hwif->INB(hwif->io_ports.status_addr); + stat = hwif->read_status(hwif); if (stat == 0xff) break; } while ((stat & BUSY_STAT) && --timeout); diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index d140dfd565a4..3d72a5e03f3d 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -134,6 +134,11 @@ static void scc_exec_command(ide_hwif_t *hwif, u8 cmd) eieio(); } +static u8 scc_read_status(ide_hwif_t *hwif) +{ + return (u8)in_be32((void *)hwif->io_ports.status_addr); +} + static u8 scc_read_sff_dma_status(ide_hwif_t *hwif) { return (u8)in_be32((void *)(hwif->dma_base + 4)); @@ -788,6 +793,7 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) ide_set_hwifdata(hwif, ports); hwif->exec_command = scc_exec_command; + hwif->read_status = scc_read_status; hwif->read_sff_dma_status = scc_read_sff_dma_status; hwif->tf_load = scc_tf_load; diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 76afa1f9c599..3005a6334a58 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -127,7 +127,7 @@ sgiioc4_checkirq(ide_hwif_t * hwif) return 0; } -static u8 sgiioc4_INB(unsigned long); +static u8 sgiioc4_read_status(ide_hwif_t *); static int sgiioc4_clearirq(ide_drive_t * drive) @@ -141,18 +141,19 @@ sgiioc4_clearirq(ide_drive_t * drive) intr_reg = readl((void __iomem *)other_ir); if (intr_reg & 0x03) { /* Valid IOC4-IDE interrupt */ /* - * Using sgiioc4_INB to read the Status register has a side - * effect of clearing the interrupt. The first read should + * Using sgiioc4_read_status to read the Status register has a + * side effect of clearing the interrupt. The first read should * clear it if it is set. The second read should return * a "clear" status if it got cleared. If not, then spin * for a bit trying to clear it. */ - u8 stat = sgiioc4_INB(io_ports->status_addr); + u8 stat = sgiioc4_read_status(hwif); int count = 0; - stat = sgiioc4_INB(io_ports->status_addr); + + stat = sgiioc4_read_status(hwif); while ((stat & 0x80) && (count++ < 100)) { udelay(1); - stat = sgiioc4_INB(io_ports->status_addr); + stat = sgiioc4_read_status(hwif); } if (intr_reg & 0x02) { @@ -304,9 +305,9 @@ sgiioc4_dma_lost_irq(ide_drive_t * drive) ide_dma_lost_irq(drive); } -static u8 -sgiioc4_INB(unsigned long port) +static u8 sgiioc4_read_status(ide_hwif_t *hwif) { + unsigned long port = hwif->io_ports.status_addr; u8 reg = (u8) readb((void __iomem *) port); if ((port & 0xFFF) == 0x11C) { /* Status register of IOC4 */ @@ -628,7 +629,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) /* Initializing chipset IRQ Registers */ writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4)); - hwif->INB = &sgiioc4_INB; + hwif->read_status = sgiioc4_read_status; idx[0] = hwif->index; diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 80123890ced0..2a86af91f64a 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -246,7 +246,7 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) { ide_hwif_t *hwif = drive->hwif; - if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) + if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); diff --git a/include/linux/ide.h b/include/linux/ide.h index d77c1994d0e3..a23ae25d7da8 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -490,6 +490,7 @@ typedef struct hwif_s { const struct ide_dma_ops *dma_ops; void (*exec_command)(struct hwif_s *, u8); + u8 (*read_status)(struct hwif_s *); u8 (*read_sff_dma_status)(struct hwif_s *); void (*tf_load)(ide_drive_t *, struct ide_task_s *); @@ -1362,13 +1363,6 @@ static inline void ide_set_irq(ide_drive_t *drive, int on) hwif->io_ports.ctl_addr); } -static inline u8 ide_read_status(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - return hwif->INB(hwif->io_ports.status_addr); -} - static inline u8 ide_read_altstatus(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; -- cgit v1.2.3 From 1f6d8a0fd8f6cc5ee2219a8cf9b2da16dfd67397 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:52 +0200 Subject: ide: add ->read_altstatus method * Remove ide_read_altstatus() inline helper. * Add ->read_altstatus method for reading ATA Alternate Status register and use it instead of ->INB. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-iops.c | 13 +++++++++++-- drivers/ide/ide-probe.c | 4 ++-- drivers/ide/pci/scc_pata.c | 6 ++++++ include/linux/ide.h | 8 +------- 4 files changed, 20 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 086eceaeeafd..e106954e13f9 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -119,6 +119,14 @@ static u8 ide_read_status(ide_hwif_t *hwif) return inb(hwif->io_ports.status_addr); } +static u8 ide_read_altstatus(ide_hwif_t *hwif) +{ + if (hwif->host_flags & IDE_HFLAG_MMIO) + return readb((void __iomem *)hwif->io_ports.ctl_addr); + else + return inb(hwif->io_ports.ctl_addr); +} + static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) @@ -349,6 +357,7 @@ void default_hwif_transport(ide_hwif_t *hwif) { hwif->exec_command = ide_exec_command; hwif->read_status = ide_read_status; + hwif->read_altstatus = ide_read_altstatus; hwif->read_sff_dma_status = ide_read_sff_dma_status; hwif->tf_load = ide_tf_load; @@ -511,7 +520,7 @@ int drive_is_ready (ide_drive_t *drive) * about possible isa-pnp and pci-pnp issues yet. */ if (hwif->io_ports.ctl_addr) - stat = ide_read_altstatus(drive); + stat = hwif->read_altstatus(hwif); else /* Note: this may clear a pending IRQ!! */ stat = hwif->read_status(hwif); @@ -724,7 +733,7 @@ int ide_driveid_update(ide_drive_t *drive) } msleep(50); /* give drive a breather */ - stat = ide_read_altstatus(drive); + stat = hwif->read_altstatus(hwif); } while (stat & BUSY_STAT); msleep(50); /* wait for IRQ and DRQ_STAT */ diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index c42fcfedcbf6..fe14d576ef01 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -275,7 +275,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) msleep(50); if (io_ports->ctl_addr) { - a = ide_read_altstatus(drive); + a = hwif->read_altstatus(hwif); s = hwif->read_status(hwif); if ((a ^ s) & ~INDEX_STAT) /* ancient Seagate drives, broken interfaces */ @@ -306,7 +306,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) } /* give drive a breather */ msleep(50); - s = use_altstatus ? ide_read_altstatus(drive) + s = use_altstatus ? hwif->read_altstatus(hwif) : hwif->read_status(hwif); } while (s & BUSY_STAT); diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 3d72a5e03f3d..a89dc4780786 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -139,6 +139,11 @@ static u8 scc_read_status(ide_hwif_t *hwif) return (u8)in_be32((void *)hwif->io_ports.status_addr); } +static u8 scc_read_altstatus(ide_hwif_t *hwif) +{ + return (u8)in_be32((void *)hwif->io_ports.ctl_addr); +} + static u8 scc_read_sff_dma_status(ide_hwif_t *hwif) { return (u8)in_be32((void *)(hwif->dma_base + 4)); @@ -794,6 +799,7 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) hwif->exec_command = scc_exec_command; hwif->read_status = scc_read_status; + hwif->read_altstatus = scc_read_altstatus; hwif->read_sff_dma_status = scc_read_sff_dma_status; hwif->tf_load = scc_tf_load; diff --git a/include/linux/ide.h b/include/linux/ide.h index a23ae25d7da8..e5fa5e868d67 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -491,6 +491,7 @@ typedef struct hwif_s { void (*exec_command)(struct hwif_s *, u8); u8 (*read_status)(struct hwif_s *); + u8 (*read_altstatus)(struct hwif_s *); u8 (*read_sff_dma_status)(struct hwif_s *); void (*tf_load)(ide_drive_t *, struct ide_task_s *); @@ -1363,13 +1364,6 @@ static inline void ide_set_irq(ide_drive_t *drive, int on) hwif->io_ports.ctl_addr); } -static inline u8 ide_read_altstatus(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - return hwif->INB(hwif->io_ports.ctl_addr); -} - static inline u8 ide_read_error(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; -- cgit v1.2.3 From 6e6afb3b7401f0181da74a1add57f126946b43e6 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:52 +0200 Subject: ide: add ->set_irq method Add ->set_irq method for setting nIEN bit of ATA Device Control register and use it instead of ide_set_irq(). While at it: * Use ->set_irq in init_irq() and do_reset1(). * Don't use HWIF() macro in ide_check_pm_state(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-io.c | 14 ++++++++------ drivers/ide/ide-iops.c | 37 +++++++++++++++++++++++++++---------- drivers/ide/ide-probe.c | 9 ++++----- drivers/ide/ide-taskfile.c | 2 +- drivers/ide/pci/scc_pata.c | 19 +++++++++++++++++++ drivers/ide/ppc/pmac.c | 17 +++++++++++++++++ include/linux/ide.h | 10 ++-------- 7 files changed, 78 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index fdc221ce9920..bbd7bd4c48ee 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -746,16 +746,17 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq) * the bus may be broken enough to walk on our toes at this * point. */ + ide_hwif_t *hwif = drive->hwif; int rc; #ifdef DEBUG_PM printk("%s: Wakeup request inited, waiting for !BSY...\n", drive->name); #endif - rc = ide_wait_not_busy(HWIF(drive), 35000); + rc = ide_wait_not_busy(hwif, 35000); if (rc) printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name); SELECT_DRIVE(drive); - ide_set_irq(drive, 1); - rc = ide_wait_not_busy(HWIF(drive), 100000); + hwif->set_irq(hwif, 1); + rc = ide_wait_not_busy(hwif, 100000); if (rc) printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name); } @@ -1041,7 +1042,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq) * quirk_list may not like intr setups/cleanups */ if (drive->quirk_list != 1) - ide_set_irq(drive, 0); + hwif->set_irq(hwif, 0); } hwgroup->hwif = hwif; hwgroup->drive = drive; @@ -1519,6 +1520,7 @@ EXPORT_SYMBOL(ide_do_drive_cmd); void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma) { + ide_hwif_t *hwif = drive->hwif; ide_task_t task; memset(&task, 0, sizeof(task)); @@ -1529,9 +1531,9 @@ void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma) task.tf.lbah = (bcount >> 8) & 0xff; ide_tf_dump(drive->name, &task.tf); - ide_set_irq(drive, 1); + hwif->set_irq(hwif, 1); SELECT_MASK(drive, 0); - drive->hwif->tf_load(drive, &task); + hwif->tf_load(drive, &task); } EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load); diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index e106954e13f9..41ec53f329fa 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -135,6 +135,23 @@ static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) return inb(hwif->dma_base + ATA_DMA_STATUS); } +static void ide_set_irq(ide_hwif_t *hwif, int on) +{ + u8 ctl = ATA_DEVCTL_OBS; + + if (on == 4) { /* hack for SRST */ + ctl |= 4; + on &= ~4; + } + + ctl |= on ? 0 : 2; + + if (hwif->host_flags & IDE_HFLAG_MMIO) + writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr); + else + outb(ctl, hwif->io_ports.ctl_addr); +} + static void ide_tf_load(ide_drive_t *drive, ide_task_t *task) { ide_hwif_t *hwif = drive->hwif; @@ -360,6 +377,8 @@ void default_hwif_transport(ide_hwif_t *hwif) hwif->read_altstatus = ide_read_altstatus; hwif->read_sff_dma_status = ide_read_sff_dma_status; + hwif->set_irq = ide_set_irq; + hwif->tf_load = ide_tf_load; hwif->tf_read = ide_tf_read; @@ -722,7 +741,7 @@ int ide_driveid_update(ide_drive_t *drive) */ SELECT_MASK(drive, 1); - ide_set_irq(drive, 0); + hwif->set_irq(hwif, 0); msleep(50); hwif->exec_command(hwif, WIN_IDENTIFY); timeout = jiffies + WAIT_WORSTCASE; @@ -808,12 +827,12 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) SELECT_DRIVE(drive); SELECT_MASK(drive, 0); udelay(1); - ide_set_irq(drive, 0); + hwif->set_irq(hwif, 0); hwif->OUTB(speed, io_ports->nsect_addr); hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr); hwif->exec_command(hwif, WIN_SETFEATURES); if (drive->quirk_list == 2) - ide_set_irq(drive, 1); + hwif->set_irq(hwif, 1); error = __ide_wait_stat(drive, drive->ready_stat, BUSY_STAT|DRQ_STAT|ERR_STAT, @@ -1129,7 +1148,6 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) ide_hwgroup_t *hwgroup; struct ide_io_ports *io_ports; const struct ide_port_ops *port_ops; - u8 ctl; spin_lock_irqsave(&ide_lock, flags); hwif = HWIF(drive); @@ -1174,16 +1192,15 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) * immediate interrupt due to the edge transition it produces. * This single interrupt gives us a "fast poll" for drives that * recover from reset very quickly, saving us the first 50ms wait time. + * + * TODO: add ->softreset method and stop abusing ->set_irq */ /* set SRST and nIEN */ - hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | 6, io_ports->ctl_addr); + hwif->set_irq(hwif, 4); /* more than enough time */ udelay(10); - if (drive->quirk_list == 2) - ctl = ATA_DEVCTL_OBS; /* clear SRST and nIEN */ - else - ctl = ATA_DEVCTL_OBS | 2; /* clear SRST, leave nIEN */ - hwif->OUTBSYNC(hwif, ctl, io_ports->ctl_addr); + /* clear SRST, leave nIEN (unless device is on the quirk list) */ + hwif->set_irq(hwif, drive->quirk_list == 2); /* more than enough time */ udelay(10); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index fe14d576ef01..475bd7263184 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -361,7 +361,7 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) autoprobe = 1; cookie = probe_irq_on(); } - ide_set_irq(drive, autoprobe); + hwif->set_irq(hwif, autoprobe); } retval = actual_try_to_identify(drive, cmd); @@ -369,7 +369,7 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) if (autoprobe) { int irq; - ide_set_irq(drive, 0); + hwif->set_irq(hwif, 0); /* clear drive IRQ */ (void)hwif->read_status(hwif); udelay(5); @@ -709,7 +709,7 @@ static int ide_port_wait_ready(ide_hwif_t *hwif) /* Ignore disks that we will not probe for later. */ if (!drive->noprobe || drive->present) { SELECT_DRIVE(drive); - ide_set_irq(drive, 1); + hwif->set_irq(hwif, 1); mdelay(2); rc = ide_wait_not_busy(hwif, 35000); if (rc) @@ -1066,8 +1066,7 @@ static int init_irq (ide_hwif_t *hwif) sa = IRQF_SHARED; if (io_ports->ctl_addr) - /* clear nIEN */ - hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS, io_ports->ctl_addr); + hwif->set_irq(hwif, 1); if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup)) goto out_unlink; diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index fc2b3957afac..ea345369553e 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -80,7 +80,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { ide_tf_dump(drive->name, tf); - ide_set_irq(drive, 1); + hwif->set_irq(hwif, 1); SELECT_MASK(drive, 0); hwif->tf_load(drive, task); } diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index a89dc4780786..727eda6db76c 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -149,6 +149,23 @@ static u8 scc_read_sff_dma_status(ide_hwif_t *hwif) return (u8)in_be32((void *)(hwif->dma_base + 4)); } +static void scc_set_irq(ide_hwif_t *hwif, int on) +{ + u8 ctl = ATA_DEVCTL_OBS; + + if (on == 4) { /* hack for SRST */ + ctl |= 4; + on &= ~4; + } + + ctl |= on ? 0 : 2; + + out_be32((void *)hwif->io_ports.ctl_addr, ctl); + eieio(); + in_be32((void *)(hwif->dma_base + 0x01c)); + eieio(); +} + static void scc_ide_insw(unsigned long port, void *addr, u32 count) { u16 *ptr = (u16 *)addr; @@ -802,6 +819,8 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) hwif->read_altstatus = scc_read_altstatus; hwif->read_sff_dma_status = scc_read_sff_dma_status; + hwif->set_irq = scc_set_irq; + hwif->tf_load = scc_tf_load; hwif->tf_read = scc_tf_read; diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index 7c3a84f8fbed..a0d66480a797 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -502,6 +502,22 @@ static void pmac_exec_command(ide_hwif_t *hwif, u8 cmd) + IDE_TIMING_CONFIG)); } +static void pmac_set_irq(ide_hwif_t *hwif, int on) +{ + u8 ctl = ATA_DEVCTL_OBS; + + if (on == 4) { /* hack for SRST */ + ctl |= 4; + on &= ~4; + } + + ctl |= on ? 0 : 2; + + writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr); + (void)readl((void __iomem *)(hwif->io_ports.data_addr + + IDE_TIMING_CONFIG)); +} + /* * Old tuning functions (called on hdparm -p), sets up drive PIO timings */ @@ -1100,6 +1116,7 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) return -ENOENT; hwif->exec_command = pmac_exec_command; + hwif->set_irq = pmac_set_irq; /* Setup MMIO ops */ default_hwif_mmiops(hwif); diff --git a/include/linux/ide.h b/include/linux/ide.h index e5fa5e868d67..ae93f89e4448 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -494,6 +494,8 @@ typedef struct hwif_s { u8 (*read_altstatus)(struct hwif_s *); u8 (*read_sff_dma_status)(struct hwif_s *); + void (*set_irq)(struct hwif_s *, int); + void (*tf_load)(ide_drive_t *, struct ide_task_s *); void (*tf_read)(ide_drive_t *, struct ide_task_s *); @@ -1356,14 +1358,6 @@ static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive) return &hwif->drives[(drive->dn ^ 1) & 1]; } -static inline void ide_set_irq(ide_drive_t *drive, int on) -{ - ide_hwif_t *hwif = drive->hwif; - - hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | (on ? 0 : 2), - hwif->io_ports.ctl_addr); -} - static inline u8 ide_read_error(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; -- cgit v1.2.3 From 92eb43800a3c1300bd5cb8a2a27e6f2a84f7042e Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:53 +0200 Subject: ide: use ->tf_read in ide_read_error() * Add IDE_TFLAG_IN_FEATURE taskfile flag for reading Feature register and handle it in ->tf_read. * Convert ide_read_error() to use ->tf_read instead of ->INB, then uninline and export it. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/h8300/ide-h8300.c | 2 ++ drivers/ide/ide-iops.c | 15 +++++++++++++++ drivers/ide/pci/ns87415.c | 2 ++ drivers/ide/pci/scc_pata.c | 2 ++ include/linux/ide.h | 10 +++------- 5 files changed, 24 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index a71433b3d0f3..548a2bf232c9 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -100,6 +100,8 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task) /* be sure we're looking at the low order bits */ outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); + if (task->tf_flags & IDE_TFLAG_IN_FEATURE) + tf->feature = inb(io_ports->feature_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = inb(io_ports->nsect_addr); if (task->tf_flags & IDE_TFLAG_IN_LBAL) diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 1983b353eb16..113db8744736 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -241,6 +241,8 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task) /* be sure we're looking at the low order bits */ tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); + if (task->tf_flags & IDE_TFLAG_IN_FEATURE) + tf->feature = tf_inb(io_ports->feature_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = tf_inb(io_ports->nsect_addr); if (task->tf_flags & IDE_TFLAG_IN_LBAL) @@ -390,6 +392,19 @@ void default_hwif_transport(ide_hwif_t *hwif) hwif->output_data = ata_output_data; } +u8 ide_read_error(ide_drive_t *drive) +{ + ide_task_t task; + + memset(&task, 0, sizeof(task)); + task.tf_flags = IDE_TFLAG_IN_FEATURE; + + drive->hwif->tf_read(drive, &task); + + return task.tf.error; +} +EXPORT_SYMBOL_GPL(ide_read_error); + void ide_fix_driveid (struct hd_driveid *id) { #ifndef __LITTLE_ENDIAN diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index b20e5f01ac89..b9bb8428b35e 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -88,6 +88,8 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) /* be sure we're looking at the low order bits */ outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); + if (task->tf_flags & IDE_TFLAG_IN_FEATURE) + tf->feature = inb(io_ports->feature_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = inb(io_ports->nsect_addr); if (task->tf_flags & IDE_TFLAG_IN_LBAL) diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 727eda6db76c..c110f359b03e 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -741,6 +741,8 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task) /* be sure we're looking at the low order bits */ scc_ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); + if (task->tf_flags & IDE_TFLAG_IN_FEATURE) + tf->feature = scc_ide_inb(io_ports->feature_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = scc_ide_inb(io_ports->nsect_addr); if (task->tf_flags & IDE_TFLAG_IN_LBAL) diff --git a/include/linux/ide.h b/include/linux/ide.h index ae93f89e4448..7890768d03ed 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -889,6 +889,7 @@ enum { IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | IDE_TFLAG_IN_HOB_NSECT | IDE_TFLAG_IN_HOB_LBA, + IDE_TFLAG_IN_FEATURE = (1 << 1), IDE_TFLAG_IN_NSECT = (1 << 25), IDE_TFLAG_IN_LBAL = (1 << 26), IDE_TFLAG_IN_LBAM = (1 << 27), @@ -956,6 +957,8 @@ void ide_tf_dump(const char *, struct ide_taskfile *); extern void SELECT_DRIVE(ide_drive_t *); void SELECT_MASK(ide_drive_t *, int); +u8 ide_read_error(ide_drive_t *); + extern int drive_is_ready(ide_drive_t *); void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); @@ -1357,11 +1360,4 @@ static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive) return &hwif->drives[(drive->dn ^ 1) & 1]; } - -static inline u8 ide_read_error(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - return hwif->INB(hwif->io_ports.error_addr); -} #endif /* _IDE_H */ -- cgit v1.2.3 From 1823649b5abb77ffe638178bc5253249d3ecd17d Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:54 +0200 Subject: ide: add ide_read_bcount_and_ireason() helper Add ide_read_bcount_and_ireason() helper and use it instead of ->INB in {cdrom_newpc,ide_pc}_intr(). Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 6 ++---- drivers/ide/ide-cd.c | 12 ++++-------- drivers/ide/ide-iops.c | 15 +++++++++++++++ include/linux/ide.h | 1 + 4 files changed, 22 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index bfab5c4afc6a..f17a00ccbe96 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -107,11 +107,9 @@ cmd_finished: ide_dma_off(drive); return ide_do_reset(drive); } - /* Get the number of bytes to transfer on this interrupt. */ - bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | - hwif->INB(hwif->io_ports.lbam_addr); - ireason = hwif->INB(hwif->io_ports.nsect_addr); + /* Get the number of bytes to transfer on this interrupt. */ + ide_read_bcount_and_ireason(drive, &bcount, &ireason); if (ireason & CD) { printk(KERN_ERR "%s: CoD != 0 in %s\n", drive->name, __func__); diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 82879a1a89e5..563a380d0e7a 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -895,10 +895,11 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) struct request *rq = HWGROUP(drive)->rq; xfer_func_t *xferfunc; ide_expiry_t *expiry = NULL; - int dma_error = 0, dma, stat, ireason, len, thislen, uptodate = 0; + int dma_error = 0, dma, stat, thislen, uptodate = 0; int write = (rq_data_dir(rq) == WRITE) ? 1 : 0; unsigned int timeout; - u8 lowcyl, highcyl; + u16 len; + u8 ireason; /* check for errors */ dma = info->dma; @@ -926,12 +927,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) goto end_request; } - /* ok we fall to pio :/ */ - ireason = hwif->INB(hwif->io_ports.nsect_addr) & 0x3; - lowcyl = hwif->INB(hwif->io_ports.lbam_addr); - highcyl = hwif->INB(hwif->io_ports.lbah_addr); - - len = lowcyl + (256 * highcyl); + ide_read_bcount_and_ireason(drive, &len, &ireason); thislen = blk_fs_request(rq) ? len : rq->data_len; if (thislen > len) diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 113db8744736..cb11c7861a50 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -405,6 +405,21 @@ u8 ide_read_error(ide_drive_t *drive) } EXPORT_SYMBOL_GPL(ide_read_error); +void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason) +{ + ide_task_t task; + + memset(&task, 0, sizeof(task)); + task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM | + IDE_TFLAG_IN_NSECT; + + drive->hwif->tf_read(drive, &task); + + *bcount = (task.tf.lbah << 8) | task.tf.lbam; + *ireason = task.tf.nsect & 3; +} +EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason); + void ide_fix_driveid (struct hd_driveid *id) { #ifndef __LITTLE_ENDIAN diff --git a/include/linux/ide.h b/include/linux/ide.h index 7890768d03ed..fd05758e6995 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -958,6 +958,7 @@ extern void SELECT_DRIVE(ide_drive_t *); void SELECT_MASK(ide_drive_t *, int); u8 ide_read_error(ide_drive_t *); +void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); extern int drive_is_ready(ide_drive_t *); -- cgit v1.2.3 From 761052e676372465fdeb97c148d5a4b0790fa8a0 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:54 +0200 Subject: ide: remove ->INB, ->OUTB and ->OUTBSYNC methods * Remove no longer needed ->INB, ->OUTB and ->OUTBSYNC methods. Then: * Remove no longer used default_hwif_[mm]iops() and ide_[mm_]outbsync(). * Cleanup SuperIO handling in ns87415.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/icside.c | 5 ----- drivers/ide/arm/palm_bk3710.c | 2 -- drivers/ide/arm/rapide.c | 2 -- drivers/ide/h8300/ide-h8300.c | 2 -- drivers/ide/ide-iops.c | 28 ------------------------ drivers/ide/ide.c | 1 - drivers/ide/legacy/ide_platform.c | 4 +--- drivers/ide/mips/swarm.c | 3 --- drivers/ide/pci/ns87415.c | 46 +++++++++++---------------------------- drivers/ide/pci/scc_pata.c | 12 ---------- drivers/ide/pci/sgiioc4.c | 3 --- drivers/ide/pci/siimage.c | 2 +- drivers/ide/ppc/pmac.c | 13 ----------- include/linux/ide.h | 7 ------ 14 files changed, 15 insertions(+), 115 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index f73422dd8474..0fd01d630f12 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -469,8 +469,6 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) if (!hwif) return -ENODEV; - default_hwif_mmiops(hwif); - state->hwif[0] = hwif; ecard_set_drvdata(ec, state); @@ -547,14 +545,11 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) return -ENODEV; hwif->chipset = ide_acorn; - default_hwif_mmiops(hwif); idx[0] = hwif->index; mate = ide_find_port(); if (mate) { - default_hwif_mmiops(mate); - hws[1] = &hw[1]; idx[1] = mate->index; } diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index 0229d794d909..545563bc7e23 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -399,8 +399,6 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) i = hwif->index; - default_hwif_mmiops(hwif); - idx[0] = i; ide_device_add(idx, &palm_bk3710_port_info, hws); diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c index 01896f6e8acf..a45c2f694949 100644 --- a/drivers/ide/arm/rapide.c +++ b/drivers/ide/arm/rapide.c @@ -59,8 +59,6 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) goto release; } - default_hwif_mmiops(hwif); - idx[0] = hwif->index; ide_device_add(idx, &rapide_port_info, hws); diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index 548a2bf232c9..0795d6554913 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -171,8 +171,6 @@ static inline void hw_setup(hw_regs_t *hw) static inline void hwif_setup(ide_hwif_t *hwif) { - default_hwif_iops(hwif); - hwif->tf_load = h8300_tf_load; hwif->tf_read = h8300_tf_read; diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index cb11c7861a50..6c54fe1f9841 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -42,18 +42,6 @@ static void ide_outb (u8 val, unsigned long port) outb(val, port); } -static void ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port) -{ - outb(addr, port); -} - -void default_hwif_iops (ide_hwif_t *hwif) -{ - hwif->OUTB = ide_outb; - hwif->OUTBSYNC = ide_outbsync; - hwif->INB = ide_inb; -} - /* * MMIO operations, typically used for SATA controllers */ @@ -68,22 +56,6 @@ static void ide_mm_outb (u8 value, unsigned long port) writeb(value, (void __iomem *) port); } -static void ide_mm_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) -{ - writeb(value, (void __iomem *) port); -} - -void default_hwif_mmiops (ide_hwif_t *hwif) -{ - hwif->OUTB = ide_mm_outb; - /* Most systems will need to override OUTBSYNC, alas however - this one is controller specific! */ - hwif->OUTBSYNC = ide_mm_outbsync; - hwif->INB = ide_mm_inb; -} - -EXPORT_SYMBOL(default_hwif_mmiops); - void SELECT_DRIVE (ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index b6018f7b0907..434dd02a4bdc 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -101,7 +101,6 @@ void ide_init_port_data(ide_hwif_t *hwif, unsigned int index) init_completion(&hwif->gendev_rel_comp); - default_hwif_iops(hwif); default_hwif_transport(hwif); ide_port_init_devices_data(hwif); diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c index 609da0d43196..3d71e336a221 100644 --- a/drivers/ide/legacy/ide_platform.c +++ b/drivers/ide/legacy/ide_platform.c @@ -103,10 +103,8 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) plat_ide_setup_ports(&hw, base, alt_base, pdata, res_irq->start); hw.dev = &pdev->dev; - if (mmio) { + if (mmio) d.host_flags |= IDE_HFLAG_MMIO; - default_hwif_mmiops(hwif); - } idx[0] = hwif->index; diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c index 6da6844d2d8c..c1ffb83a2de7 100644 --- a/drivers/ide/mips/swarm.c +++ b/drivers/ide/mips/swarm.c @@ -120,9 +120,6 @@ static int __devinit swarm_ide_probe(struct device *dev) if (hwif == NULL) goto err; - /* Setup MMIO ops. */ - default_hwif_mmiops(hwif); - idx[0] = hwif->index; ide_device_add(idx, &swarm_port_info, hws); diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index b9bb8428b35e..02fd3a877afa 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -28,10 +28,6 @@ */ #include -static unsigned long superio_ide_status[2]; -static unsigned long superio_ide_select[2]; -static unsigned long superio_ide_dma_status[2]; - #define SUPERIO_IDE_MAX_RETRIES 25 /* Because of a defect in Super I/O, all reads of the PCI DMA status @@ -40,27 +36,18 @@ static unsigned long superio_ide_dma_status[2]; */ static u8 superio_ide_inb (unsigned long port) { - if (port == superio_ide_status[0] || - port == superio_ide_status[1] || - port == superio_ide_select[0] || - port == superio_ide_select[1] || - port == superio_ide_dma_status[0] || - port == superio_ide_dma_status[1]) { - u8 tmp; - int retries = SUPERIO_IDE_MAX_RETRIES; - - /* printk(" [ reading port 0x%x with retry ] ", port); */ + u8 tmp; + int retries = SUPERIO_IDE_MAX_RETRIES; - do { - tmp = inb(port); - if (tmp == 0) - udelay(50); - } while (tmp == 0 && retries-- > 0); + /* printk(" [ reading port 0x%x with retry ] ", port); */ - return tmp; - } + do { + tmp = inb(port); + if (tmp == 0) + udelay(50); + } while (tmp == 0 && retries-- > 0); - return inb(port); + return tmp; } static u8 superio_read_status(ide_hwif_t *hwif) @@ -120,27 +107,20 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) static void __devinit superio_ide_init_iops (struct hwif_s *hwif) { struct pci_dev *pdev = to_pci_dev(hwif->dev); - u32 base, dmabase; + u32 dma_stat; u8 port = hwif->channel, tmp; - base = pci_resource_start(pdev, port * 2) & ~3; - dmabase = pci_resource_start(pdev, 4) & ~3; - - superio_ide_status[port] = base + 7; - superio_ide_select[port] = base + 6; - superio_ide_dma_status[port] = dmabase + (!port ? 2 : 0xa); + dma_stat = (pci_resource_start(pdev, 4) & ~3) + (!port ? 2 : 0xa); /* Clear error/interrupt, enable dma */ - tmp = superio_ide_inb(superio_ide_dma_status[port]); - outb(tmp | 0x66, superio_ide_dma_status[port]); + tmp = superio_ide_inb(dma_stat); + outb(tmp | 0x66, dma_stat); hwif->read_status = superio_read_status; hwif->read_sff_dma_status = superio_read_sff_dma_status; hwif->tf_read = superio_tf_read; - /* We need to override inb to workaround a SuperIO errata */ - hwif->INB = superio_ide_inb; } static void __devinit init_iops_ns87415(ide_hwif_t *hwif) diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index c110f359b03e..38765d9b0314 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -188,14 +188,6 @@ static void scc_ide_outb(u8 addr, unsigned long port) out_be32((void*)port, addr); } -static void scc_ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port) -{ - out_be32((void*)port, addr); - eieio(); - in_be32((void*)(hwif->dma_base + 0x01c)); - eieio(); -} - static void scc_ide_outsw(unsigned long port, void *addr, u32 count) { @@ -829,10 +821,6 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) hwif->input_data = scc_input_data; hwif->output_data = scc_output_data; - hwif->INB = scc_ide_inb; - hwif->OUTB = scc_ide_outb; - hwif->OUTBSYNC = scc_ide_outbsync; - hwif->dma_base = dma_base; hwif->config_data = ports->ctl; } diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 3005a6334a58..86f7c4901837 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -623,9 +623,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) if (hwif == NULL) goto err; - /* The IOC4 uses MMIO rather than Port IO. */ - default_hwif_mmiops(hwif); - /* Initializing chipset IRQ Registers */ writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4)); diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c index 21d7137f7d6c..5965a35d94ae 100644 --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -601,7 +601,7 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif) * Fill in the basic hwif bits */ hwif->host_flags |= IDE_HFLAG_MMIO; - default_hwif_mmiops(hwif); + hwif->hwif_data = addr; /* diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index a0d66480a797..ed073c6635a8 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -486,15 +486,6 @@ pmac_ide_do_update_timings(ide_drive_t *drive) pmac_ide_selectproc(drive); } -static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) -{ - u32 tmp; - - writeb(value, (void __iomem *) port); - tmp = readl((void __iomem *)(hwif->io_ports.data_addr - + IDE_TIMING_CONFIG)); -} - static void pmac_exec_command(ide_hwif_t *hwif, u8 cmd) { writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); @@ -1118,10 +1109,6 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) hwif->exec_command = pmac_exec_command; hwif->set_irq = pmac_set_irq; - /* Setup MMIO ops */ - default_hwif_mmiops(hwif); - hwif->OUTBSYNC = pmac_outbsync; - idx[0] = hwif->index; ide_device_add(idx, &d, hws); diff --git a/include/linux/ide.h b/include/linux/ide.h index fd05758e6995..0544ff7d9afc 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -504,11 +504,6 @@ typedef struct hwif_s { void (*ide_dma_clear_irq)(ide_drive_t *drive); - void (*OUTB)(u8 addr, unsigned long port); - void (*OUTBSYNC)(struct hwif_s *hwif, u8 addr, unsigned long port); - - u8 (*INB)(unsigned long port); - /* dma physical region descriptor table (cpu view) */ unsigned int *dmatable_cpu; /* dma physical region descriptor table (dma view) */ @@ -1027,8 +1022,6 @@ static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, } #endif -extern void default_hwif_iops(ide_hwif_t *); -extern void default_hwif_mmiops(ide_hwif_t *); extern void default_hwif_transport(ide_hwif_t *); typedef struct ide_pci_enablebit_s { -- cgit v1.2.3 From ba4b2e607e4e9eaa929935325dafd5c86d3b5262 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:55 +0200 Subject: ide: remove dead Virtual DMA support Lets remove dead Virtual DMA support for now so it doesn't clutter core IDE code (it can be bring back when there is a need for it): * Remove IDE_HFLAG_VDMA host flag. * Remove ide_drive_t.vdma flag. * cs5520.c: remove stale FIXMEs, cs5520_dma_host_set() and cs5520_dma_ops (also there is no longer a need to set IDE_HFLAG_NO_ATAPI_DMA). There should be no functional changes caused by this patch. Cc: TAKADA Yoshihito Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-disk.c | 2 +- drivers/ide/ide-dma.c | 5 ++--- drivers/ide/ide-iops.c | 3 +-- drivers/ide/pci/cs5520.c | 30 ------------------------------ include/linux/ide.h | 3 --- 5 files changed, 4 insertions(+), 39 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 3a2e80237c10..df5fe5756871 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -158,7 +158,7 @@ static void ide_tf_set_cmd(ide_drive_t *drive, ide_task_t *task, u8 dma) write = (task->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0; if (dma) - index = drive->vdma ? 4 : 8; + index = 8; else index = drive->mult_count ? 0 : 4; diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index ecf60dbbe3e9..e72112efab9a 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -756,9 +756,8 @@ static int ide_tune_dma(ide_drive_t *drive) static int ide_dma_check(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - int vdma = (hwif->host_flags & IDE_HFLAG_VDMA)? 1 : 0; - if (!vdma && ide_tune_dma(drive)) + if (ide_tune_dma(drive)) return 0; /* TODO: always do PIO fallback */ @@ -767,7 +766,7 @@ static int ide_dma_check(ide_drive_t *drive) ide_set_max_pio(drive); - return vdma ? 0 : -1; + return -1; } int ide_id_dma_bug(ide_drive_t *drive) diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 6c54fe1f9841..c9d15be4c48d 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -866,8 +866,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) skip: #ifdef CONFIG_BLK_DEV_IDEDMA - if ((speed >= XFER_SW_DMA_0 || (hwif->host_flags & IDE_HFLAG_VDMA)) && - drive->using_dma) + if (speed >= XFER_SW_DMA_0 && drive->using_dma) hwif->dma_ops->dma_host_set(drive, 1); else if (hwif->dma_ops) /* check if host supports DMA */ ide_dma_off_quietly(drive); diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index a13f2bc0665c..d30cb4d99c45 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -62,8 +62,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio) struct pci_dev *pdev = to_pci_dev(hwif->dev); int controller = drive->dn > 1 ? 1 : 0; - /* FIXME: if DMA = 1 do we need to set the DMA bit here ? */ - /* 8bit CAT/CRT - 8bit command timing for channel */ pci_write_config_byte(pdev, 0x62 + controller, (cs5520_pio_clocks[pio].recovery << 4) | @@ -89,45 +87,17 @@ static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed) cs5520_set_pio_mode(drive, 0); } -/* - * We wrap the DMA activate to set the vdma flag. This is needed - * so that the IDE DMA layer issues PIO not DMA commands over the - * DMA channel - * - * ATAPI is harder so disable it for now using IDE_HFLAG_NO_ATAPI_DMA - */ - -static void cs5520_dma_host_set(ide_drive_t *drive, int on) -{ - drive->vdma = on; - ide_dma_host_set(drive, on); -} - static const struct ide_port_ops cs5520_port_ops = { .set_pio_mode = cs5520_set_pio_mode, .set_dma_mode = cs5520_set_dma_mode, }; -static const struct ide_dma_ops cs5520_dma_ops = { - .dma_host_set = cs5520_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_exec_cmd = ide_dma_exec_cmd, - .dma_start = ide_dma_start, - .dma_end = __ide_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timeout = ide_dma_timeout, -}; - -/* FIXME: VDMA is disabled because it caused system hangs */ #define DECLARE_CS_DEV(name_str) \ { \ .name = name_str, \ .port_ops = &cs5520_port_ops, \ - .dma_ops = &cs5520_dma_ops, \ .host_flags = IDE_HFLAG_ISA_PORTS | \ IDE_HFLAG_CS5520 | \ - IDE_HFLAG_NO_ATAPI_DMA | \ IDE_HFLAG_ABUSE_SET_DMA_MODE, \ .pio_mask = ATA_PIO4, \ } diff --git a/include/linux/ide.h b/include/linux/ide.h index 0544ff7d9afc..3f2889400250 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -355,7 +355,6 @@ typedef struct ide_drive_s { unsigned nodma : 1; /* disallow DMA */ unsigned remap_0_to_1 : 1; /* 0=noremap, 1=remap 0->1 (for EZDrive) */ unsigned blocked : 1; /* 1=powermanagment told us not to do anything, so sleep nicely */ - unsigned vdma : 1; /* 1=doing PIO over DMA 0=doing normal DMA */ unsigned scsi : 1; /* 0=default, 1=ide-scsi emulation */ unsigned sleeping : 1; /* 1=sleeping & sleep field valid */ unsigned post_reset : 1; @@ -1097,8 +1096,6 @@ enum { IDE_HFLAG_NO_IO_32BIT = (1 << 30), /* never unmask IRQs */ IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), - /* host uses VDMA (disabled for now) */ - IDE_HFLAG_VDMA = 0, }; #ifdef CONFIG_BLK_DEV_OFFBOARD -- cgit v1.2.3 From 3b2a5c7149ee4af4aff8fee953f66fc846d92cea Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:56 +0200 Subject: ide: filter out "default" transfer mode values in set_xfer_rate() * Filter out "default" transfer mode values (0x00 - default PIO mode, 0x01 - default PIO mode w/ IORDY disabled) in write handler for obsoleted /proc/ide/hd?/settings:current_speed setting. Allowing "default" transfer mode values is a dangerous thing to do as we don't support programming controller to the "default" transfer mode and devices often use different values for the default and maximum PIO mode (i.e. PIO2 default and PIO4 maximum) so the controller will stay programmed for higher PIO mode while device will use the lower PIO mode. There is no functionality loss as by using special IOCTLs device can still be programmed to "default" transfer modes (it is only useful for debugging/testing purposes anyway). * Remove no longer needed IDE_HFLAG_ABUSE_SET_DMA_MODE host flag, it was previously used by few host drivers to program the controller to PIO0 timings for "default" transfer mode == 0x01 (although some host drivers would program invalid PIO timings instead). * Cleanup ide_set_xfer_rate() and add BUG_ON(). Suggested-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-lib.c | 15 ++------------- drivers/ide/ide-proc.c | 4 ++-- drivers/ide/pci/aec62xx.c | 5 ----- drivers/ide/pci/amd74xx.c | 1 - drivers/ide/pci/cs5520.c | 3 +-- drivers/ide/pci/cs5535.c | 3 +-- drivers/ide/pci/hpt34x.c | 1 - drivers/ide/pci/hpt366.c | 1 - drivers/ide/pci/pdc202xx_old.c | 1 - drivers/ide/pci/serverworks.c | 4 +--- drivers/ide/pci/tc86c001.c | 3 +-- drivers/ide/pci/via82cxxx.c | 1 - include/linux/ide.h | 1 - 13 files changed, 8 insertions(+), 35 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index 13af72f09ec4..7ac44d515470 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -266,22 +266,11 @@ int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) rate = ide_rate_filter(drive, rate); + BUG_ON(rate < XFER_PIO_0); + if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5) return ide_set_pio_mode(drive, rate); - /* - * TODO: transfer modes 0x00-0x07 passed from the user-space are - * currently handled here which needs fixing (please note that such - * case could happen iff the transfer mode has already been set on - * the device by ide-proc.c::set_xfer_rate()). - */ - if (rate < XFER_PIO_0) { - if (hwif->host_flags & IDE_HFLAG_ABUSE_SET_DMA_MODE) - return ide_set_dma_mode(drive, rate); - else - return ide_config_drive_speed(drive, rate); - } - return ide_set_dma_mode(drive, rate); } diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 54d57a15d59e..151c91e933da 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -345,7 +345,7 @@ static int set_xfer_rate (ide_drive_t *drive, int arg) ide_task_t task; int err; - if (arg < 0 || (arg > 1 && arg < XFER_PIO_0) || arg > XFER_UDMA_6) + if (arg < XFER_PIO_0 || arg > XFER_UDMA_6) return -EINVAL; memset(&task, 0, sizeof(task)); @@ -357,7 +357,7 @@ static int set_xfer_rate (ide_drive_t *drive, int arg) err = ide_no_data_taskfile(drive, &task); - if (!err && arg) { + if (!err) { ide_set_xfer_rate(drive, (u8) arg); ide_driveid_update(drive); } diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c index ae7a4329a581..fbc43e121e6b 100644 --- a/drivers/ide/pci/aec62xx.c +++ b/drivers/ide/pci/aec62xx.c @@ -195,7 +195,6 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_DSC | - IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_OFF_BOARD, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, @@ -205,7 +204,6 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .init_chipset = init_chipset_aec62xx, .port_ops = &atp86x_port_ops, .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA | - IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_OFF_BOARD, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, @@ -216,7 +214,6 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, .port_ops = &atp86x_port_ops, .host_flags = IDE_HFLAG_NO_ATAPI_DMA | - IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_NON_BOOTABLE, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, @@ -226,7 +223,6 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .init_chipset = init_chipset_aec62xx, .port_ops = &atp86x_port_ops, .host_flags = IDE_HFLAG_NO_ATAPI_DMA | - IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_OFF_BOARD, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, @@ -237,7 +233,6 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, .port_ops = &atp86x_port_ops, .host_flags = IDE_HFLAG_NO_ATAPI_DMA | - IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_OFF_BOARD, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c index 0bfcdd0e77b3..ef7d971031ee 100644 --- a/drivers/ide/pci/amd74xx.c +++ b/drivers/ide/pci/amd74xx.c @@ -218,7 +218,6 @@ static const struct ide_port_ops amd_port_ops = { #define IDE_HFLAGS_AMD \ (IDE_HFLAG_PIO_NO_BLACKLIST | \ - IDE_HFLAG_ABUSE_SET_DMA_MODE | \ IDE_HFLAG_POST_SET_MODE | \ IDE_HFLAG_IO_32BIT | \ IDE_HFLAG_UNMASK_IRQS) diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index d30cb4d99c45..e8e7df1915bf 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -97,8 +97,7 @@ static const struct ide_port_ops cs5520_port_ops = { .name = name_str, \ .port_ops = &cs5520_port_ops, \ .host_flags = IDE_HFLAG_ISA_PORTS | \ - IDE_HFLAG_CS5520 | \ - IDE_HFLAG_ABUSE_SET_DMA_MODE, \ + IDE_HFLAG_CS5520, \ .pio_mask = ATA_PIO4, \ } diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c index dc97c48623f3..5404fe4f701d 100644 --- a/drivers/ide/pci/cs5535.c +++ b/drivers/ide/pci/cs5535.c @@ -171,8 +171,7 @@ static const struct ide_port_ops cs5535_port_ops = { static const struct ide_port_info cs5535_chipset __devinitdata = { .name = "CS5535", .port_ops = &cs5535_port_ops, - .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE | - IDE_HFLAG_ABUSE_SET_DMA_MODE, + .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA4, diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c index 84c36c117194..9e1d1c4741da 100644 --- a/drivers/ide/pci/hpt34x.c +++ b/drivers/ide/pci/hpt34x.c @@ -123,7 +123,6 @@ static const struct ide_port_ops hpt34x_port_ops = { #define IDE_HFLAGS_HPT34X \ (IDE_HFLAG_NO_ATAPI_DMA | \ IDE_HFLAG_NO_DSC | \ - IDE_HFLAG_ABUSE_SET_DMA_MODE | \ IDE_HFLAG_NO_AUTODMA) static const struct ide_port_info hpt34x_chipsets[] __devinitdata = { diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index e5651cefa395..1f1135ce7cd6 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -1409,7 +1409,6 @@ static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2) #define IDE_HFLAGS_HPT3XX \ (IDE_HFLAG_NO_ATAPI_DMA | \ - IDE_HFLAG_ABUSE_SET_DMA_MODE | \ IDE_HFLAG_OFF_BOARD) static const struct ide_port_ops hpt3xx_port_ops = { diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index 1c2f9df31129..e54dc653b8c4 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -312,7 +312,6 @@ static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev, #define IDE_HFLAGS_PDC202XX \ (IDE_HFLAG_ERROR_STOPS_FIFO | \ - IDE_HFLAG_ABUSE_SET_DMA_MODE | \ IDE_HFLAG_OFF_BOARD) static const struct ide_port_ops pdc20246_port_ops = { diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c index a1fb20826a5b..127ccb45e261 100644 --- a/drivers/ide/pci/serverworks.c +++ b/drivers/ide/pci/serverworks.c @@ -349,9 +349,7 @@ static const struct ide_port_ops svwks_port_ops = { .cable_detect = svwks_cable_detect, }; -#define IDE_HFLAGS_SVWKS \ - (IDE_HFLAG_LEGACY_IRQS | \ - IDE_HFLAG_ABUSE_SET_DMA_MODE) +#define IDE_HFLAGS_SVWKS IDE_HFLAG_LEGACY_IRQS static const struct ide_port_info serverworks_chipsets[] __devinitdata = { { /* 0 */ diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c index a81d47c55ce1..477e19790102 100644 --- a/drivers/ide/pci/tc86c001.c +++ b/drivers/ide/pci/tc86c001.c @@ -206,8 +206,7 @@ static const struct ide_port_info tc86c001_chipset __devinitdata = { .init_hwif = init_hwif_tc86c001, .port_ops = &tc86c001_port_ops, .dma_ops = &tc86c001_dma_ops, - .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_OFF_BOARD | - IDE_HFLAG_ABUSE_SET_DMA_MODE, + .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_OFF_BOARD, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA4, diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index e47384c70c40..09dc4803ef9d 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -425,7 +425,6 @@ static const struct ide_port_info via82cxxx_chipset __devinitdata = { .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, .port_ops = &via_port_ops, .host_flags = IDE_HFLAG_PIO_NO_BLACKLIST | - IDE_HFLAG_ABUSE_SET_DMA_MODE | IDE_HFLAG_POST_SET_MODE | IDE_HFLAG_IO_32BIT, .pio_mask = ATA_PIO5, diff --git a/include/linux/ide.h b/include/linux/ide.h index 3f2889400250..260e871ae880 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1085,7 +1085,6 @@ enum { IDE_HFLAG_IO_32BIT = (1 << 24), /* unmask IRQs */ IDE_HFLAG_UNMASK_IRQS = (1 << 25), - IDE_HFLAG_ABUSE_SET_DMA_MODE = (1 << 26), /* serialize ports if DMA is possible (for sl82c105) */ IDE_HFLAG_SERIALIZE_DMA = (1 << 27), /* force host out of "simplex" mode */ -- cgit v1.2.3 From d6276b5f5cc7508124de291f3ed59c6945c17ae7 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:56 +0200 Subject: ide: add 'config' field to hw_regs_t Add 'config' field to hw_regs_t and use it to set hwif->config_data in ide_init_port_hw(), then convert ide_legacy_init_one() to use hw->config. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-probe.c | 4 +--- drivers/ide/ide.c | 1 + include/linux/ide.h | 1 + 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 21cea45e9f21..3cc8ade2cc4f 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1689,14 +1689,12 @@ static void ide_legacy_init_one(u8 *idx, hw_regs_t **hws, hw_regs_t *hw, ide_std_init_ports(hw, base, ctl); hw->irq = irq; hw->chipset = d->chipset; + hw->config = config; hwif = ide_find_port_slot(d); if (hwif) { hwif->chipset = hw->chipset; - if (config) - hwif->config_data = config; - hws[port_no] = hw; idx[port_no] = hwif->index; } diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 434dd02a4bdc..961f31c648c9 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -286,6 +286,7 @@ void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) hwif->dev = hw->dev; hwif->gendev.parent = hw->parent ? hw->parent : hw->dev; hwif->ack_intr = hw->ack_intr; + hwif->config_data = hw->config; } /* diff --git a/include/linux/ide.h b/include/linux/ide.h index 260e871ae880..e340218b2a5f 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -178,6 +178,7 @@ typedef struct hw_regs_s { ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ hwif_chipset_t chipset; struct device *dev, *parent; + unsigned long config; } hw_regs_t; void ide_init_port_data(struct hwif_s *, unsigned int); -- cgit v1.2.3 From 374e042c3e767ac2e5a40b78529220e0b3de793c Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:56 +0200 Subject: ide: add struct ide_tp_ops (take 2) * Add struct ide_tp_ops for transport methods. * Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info and ide_hwif_t. * Set the default hwif->tp_ops in ide_init_port_data(). * Set host driver specific hwif->tp_ops in ide_init_port(). * Export ide_exec_command(), ide_read_status(), ide_read_altstatus(), ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}() and ata_{in,out}put_data(). * Convert host drivers and core code to use struct ide_tp_ops. * Remove no longer needed default_hwif_transport(). * Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops. While at it: * Use struct ide_port_info in falconide.c and q40ide.c. * Rename ata_{in,out}put_data() to ide_{in,out}put_data(). v2: * Fix missing convertion in ns87415.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/icside.c | 2 +- drivers/ide/h8300/ide-h8300.c | 26 +++++---- drivers/ide/ide-atapi.c | 13 +++-- drivers/ide/ide-cd.c | 12 ++-- drivers/ide/ide-dma.c | 12 ++-- drivers/ide/ide-floppy.c | 8 +-- drivers/ide/ide-io.c | 32 +++++------ drivers/ide/ide-iops.c | 122 +++++++++++++++++++++++------------------ drivers/ide/ide-lib.c | 2 +- drivers/ide/ide-probe.c | 53 ++++++++++-------- drivers/ide/ide-tape.c | 8 +-- drivers/ide/ide-taskfile.c | 29 ++++++---- drivers/ide/ide.c | 2 +- drivers/ide/legacy/falconide.c | 27 +++++++-- drivers/ide/legacy/q40ide.c | 27 +++++++-- drivers/ide/mips/au1xxx-ide.c | 29 +++++++--- drivers/ide/pci/ns87415.c | 50 +++++++++-------- drivers/ide/pci/scc_pata.c | 29 +++++----- drivers/ide/pci/sgiioc4.c | 18 +++++- drivers/ide/ppc/pmac.c | 21 +++++-- drivers/ide/setup-pci.c | 2 +- drivers/scsi/ide-scsi.c | 7 ++- include/linux/ide.h | 52 ++++++++++++------ 23 files changed, 358 insertions(+), 225 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index 0fd01d630f12..0283d162f7f7 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -382,7 +382,7 @@ static void icside_dma_timeout(ide_drive_t *drive) if (icside_dma_test_irq(drive)) return; - ide_dump_status(drive, "DMA timeout", hwif->read_status(hwif)); + ide_dump_status(drive, "DMA timeout", hwif->tp_ops->read_status(hwif)); icside_dma_end(drive); } diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index 0795d6554913..84644e150531 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -155,6 +155,21 @@ static void h8300_output_data(ide_drive_t *drive, struct request *rq, mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2); } +static const struct ide_tp_ops h8300_tp_ops = { + .exec_command = ide_exec_command, + .read_status = ide_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = ide_read_sff_dma_status, + + .set_irq = ide_set_irq, + + .tf_load = h8300_tf_load, + .tf_read = h8300_tf_read, + + .input_data = h8300_input_data, + .output_data = h8300_output_data, +}; + #define H8300_IDE_GAP (2) static inline void hw_setup(hw_regs_t *hw) @@ -169,16 +184,8 @@ static inline void hw_setup(hw_regs_t *hw) hw->chipset = ide_generic; } -static inline void hwif_setup(ide_hwif_t *hwif) -{ - hwif->tf_load = h8300_tf_load; - hwif->tf_read = h8300_tf_read; - - hwif->input_data = h8300_input_data; - hwif->output_data = h8300_output_data; -} - static const struct ide_port_info h8300_port_info = { + .tp_ops = &h8300_tp_ops, .host_flags = IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_NO_DMA, }; @@ -205,7 +212,6 @@ static int __init h8300_ide_init(void) return -ENOENT; index = hwif->index; - hwif_setup(hwif); idx[0] = index; diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index f17a00ccbe96..6789b81ea78d 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -22,6 +22,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) { ide_hwif_t *hwif = drive->hwif; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; xfer_func_t *xferfunc; unsigned int temp; u16 bcount; @@ -35,7 +36,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, } /* Clear the interrupt */ - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { if (hwif->dma_ops->dma_end(drive) || @@ -140,7 +141,7 @@ cmd_finished: if (pc->sg) io_buffers(drive, pc, temp, 0); else - hwif->input_data(drive, NULL, + tp_ops->input_data(drive, NULL, pc->cur_pos, temp); printk(KERN_ERR "%s: transferred %d of " "%d bytes\n", @@ -157,9 +158,9 @@ cmd_finished: debug_log("The device wants to send us more data than " "expected - allowing transfer\n"); } - xferfunc = hwif->input_data; + xferfunc = tp_ops->input_data; } else - xferfunc = hwif->output_data; + xferfunc = tp_ops->output_data; if ((drive->media == ide_floppy && !scsi && !pc->buf) || (drive->media == ide_tape && !scsi && pc->bh) || @@ -188,7 +189,7 @@ static u8 ide_read_ireason(ide_drive_t *drive) memset(&task, 0, sizeof(task)); task.tf_flags = IDE_TFLAG_IN_NSECT; - drive->hwif->tf_read(drive, &task); + drive->hwif->tp_ops->tf_read(drive, &task); return task.tf.nsect & 3; } @@ -249,7 +250,7 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, /* Send the actual packet */ if ((pc->flags & PC_FLAG_ZIP_DRIVE) == 0) - hwif->output_data(drive, NULL, pc->c, 12); + hwif->tp_ops->output_data(drive, NULL, pc->c, 12); return ide_started; } diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 563a380d0e7a..d9798ca433ba 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -285,7 +285,7 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) int stat, err, sense_key; /* check for errors */ - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (stat_ret) *stat_ret = stat; @@ -590,7 +590,7 @@ static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, cmd_len = ATAPI_MIN_CDB_BYTES; /* send the command to the device */ - hwif->output_data(drive, NULL, rq->cmd, cmd_len); + hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len); /* start the DMA if need be */ if (info->dma) @@ -627,7 +627,7 @@ static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, * Some drives (ASUS) seem to tell us that status info is * available. Just get it and ignore. */ - (void)hwif->read_status(hwif); + (void)hwif->tp_ops->read_status(hwif); return 0; } else { /* drive wants a command packet, or invalid ireason... */ @@ -990,10 +990,10 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) if (ireason == 0) { write = 1; - xferfunc = hwif->output_data; + xferfunc = hwif->tp_ops->output_data; } else { write = 0; - xferfunc = hwif->input_data; + xferfunc = hwif->tp_ops->input_data; } /* transfer data */ @@ -1200,7 +1200,7 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, if (info->cd_flags & IDE_CD_FLAG_SEEKING) { ide_hwif_t *hwif = drive->hwif; unsigned long elapsed = jiffies - info->start_seek; - int stat = hwif->read_status(hwif); + int stat = hwif->tp_ops->read_status(hwif); if ((stat & SEEK_STAT) != SEEK_STAT) { if (elapsed < IDECD_SEEK_TIMEOUT) { diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index e72112efab9a..be99d463dcc7 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -104,7 +104,7 @@ ide_startstop_t ide_dma_intr (ide_drive_t *drive) u8 stat = 0, dma_stat = 0; dma_stat = hwif->dma_ops->dma_end(drive); - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) { if (!dma_stat) { @@ -335,7 +335,7 @@ static int config_drive_for_dma (ide_drive_t *drive) static int dma_timer_expiry (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - u8 dma_stat = hwif->read_sff_dma_status(hwif); + u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); printk(KERN_WARNING "%s: dma_timer_expiry: dma status == 0x%02x\n", drive->name, dma_stat); @@ -370,7 +370,7 @@ void ide_dma_host_set(ide_drive_t *drive, int on) { ide_hwif_t *hwif = HWIF(drive); u8 unit = (drive->select.b.unit & 0x01); - u8 dma_stat = hwif->read_sff_dma_status(hwif); + u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); if (on) dma_stat |= (1 << (5 + unit)); @@ -482,7 +482,7 @@ int ide_dma_setup(ide_drive_t *drive) outb(reading, hwif->dma_base + ATA_DMA_CMD); /* read DMA status for INTR & ERROR flags */ - dma_stat = hwif->read_sff_dma_status(hwif); + dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); /* clear INTR & ERROR flags */ if (mmio) @@ -551,7 +551,7 @@ int __ide_dma_end (ide_drive_t *drive) } /* get DMA status */ - dma_stat = hwif->read_sff_dma_status(hwif); + dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); if (mmio) /* clear the INTR & ERROR bits */ @@ -574,7 +574,7 @@ EXPORT_SYMBOL(__ide_dma_end); int ide_dma_test_irq(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - u8 dma_stat = hwif->read_sff_dma_status(hwif); + u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); /* return 1 if INTR asserted */ if ((dma_stat & 4) == 4) diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 6f5294cfff23..62be2b27f236 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -247,9 +247,9 @@ static void ide_floppy_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, data = bvec_kmap_irq(bvec, &flags); if (direction) - hwif->output_data(drive, NULL, data, count); + hwif->tp_ops->output_data(drive, NULL, data, count); else - hwif->input_data(drive, NULL, data, count); + hwif->tp_ops->input_data(drive, NULL, data, count); bvec_kunmap_irq(data, &flags); bcount -= count; @@ -402,7 +402,7 @@ static int idefloppy_transfer_pc(ide_drive_t *drive) idefloppy_floppy_t *floppy = drive->driver_data; /* Send the actual packet */ - drive->hwif->output_data(drive, NULL, floppy->pc->c, 12); + drive->hwif->tp_ops->output_data(drive, NULL, floppy->pc->c, 12); /* Timeout for the packet command */ return IDEFLOPPY_WAIT_CMD; @@ -954,7 +954,7 @@ static int idefloppy_get_format_progress(ide_drive_t *drive, int __user *arg) u8 stat; local_irq_save(flags); - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); local_irq_restore(flags); progress_indication = ((stat & SEEK_STAT) == 0) ? 0 : 0x10000; diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index bbd7bd4c48ee..a896a283f27f 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -330,7 +330,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) tf->error = err; tf->status = stat; - drive->hwif->tf_read(drive, task); + drive->hwif->tp_ops->tf_read(drive, task); if (task->tf_flags & IDE_TFLAG_DYN) kfree(task); @@ -381,7 +381,7 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 if (err == ABRT_ERR) { if (drive->select.b.lba && /* some newer drives don't support WIN_SPECIFY */ - hwif->read_status(hwif) == WIN_SPECIFY) + hwif->tp_ops->read_status(hwif) == WIN_SPECIFY) return ide_stopped; } else if ((err & BAD_CRC) == BAD_CRC) { /* UDMA crc error, just retry the operation */ @@ -407,7 +407,7 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 return ide_stopped; } - if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) + if (hwif->tp_ops->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) rq->errors |= ERROR_RESET; if ((rq->errors & ERROR_RESET) == ERROR_RESET) { @@ -434,9 +434,9 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u /* add decoding error stuff */ } - if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) + if (hwif->tp_ops->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); + hwif->tp_ops->exec_command(hwif, WIN_IDLEIMMEDIATE); if (rq->errors >= ERROR_MAX) { ide_kill_rq(drive, rq); @@ -710,7 +710,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, #ifdef DEBUG printk("%s: DRIVE_CMD (null)\n", drive->name); #endif - ide_end_drive_cmd(drive, hwif->read_status(hwif), + ide_end_drive_cmd(drive, hwif->tp_ops->read_status(hwif), ide_read_error(drive)); return ide_stopped; @@ -755,7 +755,7 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq) if (rc) printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name); SELECT_DRIVE(drive); - hwif->set_irq(hwif, 1); + hwif->tp_ops->set_irq(hwif, 1); rc = ide_wait_not_busy(hwif, 100000); if (rc) printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name); @@ -1042,7 +1042,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq) * quirk_list may not like intr setups/cleanups */ if (drive->quirk_list != 1) - hwif->set_irq(hwif, 0); + hwif->tp_ops->set_irq(hwif, 0); } hwgroup->hwif = hwif; hwgroup->drive = drive; @@ -1142,7 +1142,7 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) printk(KERN_WARNING "%s: DMA timeout error\n", drive->name); (void)hwif->dma_ops->dma_end(drive); ret = ide_error(drive, "dma timeout error", - hwif->read_status(hwif)); + hwif->tp_ops->read_status(hwif)); } else { printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name); hwif->dma_ops->dma_timeout(drive); @@ -1267,7 +1267,7 @@ void ide_timer_expiry (unsigned long data) } else startstop = ide_error(drive, "irq timeout", - hwif->read_status(hwif)); + hwif->tp_ops->read_status(hwif)); } drive->service_time = jiffies - drive->service_start; spin_lock_irq(&ide_lock); @@ -1323,7 +1323,7 @@ static void unexpected_intr (int irq, ide_hwgroup_t *hwgroup) */ do { if (hwif->irq == irq) { - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (!OK_STAT(stat, READY_STAT, BAD_STAT)) { /* Try to not flood the console with msgs */ @@ -1414,7 +1414,7 @@ irqreturn_t ide_intr (int irq, void *dev_id) * Whack the status register, just in case * we have a leftover pending IRQ. */ - (void)hwif->read_status(hwif); + (void)hwif->tp_ops->read_status(hwif); #endif /* CONFIG_BLK_DEV_IDEPCI */ } spin_unlock_irqrestore(&ide_lock, flags); @@ -1531,9 +1531,9 @@ void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma) task.tf.lbah = (bcount >> 8) & 0xff; ide_tf_dump(drive->name, &task.tf); - hwif->set_irq(hwif, 1); + hwif->tp_ops->set_irq(hwif, 1); SELECT_MASK(drive, 0); - hwif->tf_load(drive, &task); + hwif->tp_ops->tf_load(drive, &task); } EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load); @@ -1545,9 +1545,9 @@ void ide_pad_transfer(ide_drive_t *drive, int write, int len) while (len > 0) { if (write) - hwif->output_data(drive, NULL, buf, min(4, len)); + hwif->tp_ops->output_data(drive, NULL, buf, min(4, len)); else - hwif->input_data(drive, NULL, buf, min(4, len)); + hwif->tp_ops->input_data(drive, NULL, buf, min(4, len)); len -= 4; } } diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index c9d15be4c48d..07da5fb9eaff 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -68,7 +68,7 @@ void SELECT_DRIVE (ide_drive_t *drive) memset(&task, 0, sizeof(task)); task.tf_flags = IDE_TFLAG_OUT_DEVICE; - drive->hwif->tf_load(drive, &task); + drive->hwif->tp_ops->tf_load(drive, &task); } void SELECT_MASK(ide_drive_t *drive, int mask) @@ -79,39 +79,43 @@ void SELECT_MASK(ide_drive_t *drive, int mask) port_ops->maskproc(drive, mask); } -static void ide_exec_command(ide_hwif_t *hwif, u8 cmd) +void ide_exec_command(ide_hwif_t *hwif, u8 cmd) { if (hwif->host_flags & IDE_HFLAG_MMIO) writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); else outb(cmd, hwif->io_ports.command_addr); } +EXPORT_SYMBOL_GPL(ide_exec_command); -static u8 ide_read_status(ide_hwif_t *hwif) +u8 ide_read_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) return readb((void __iomem *)hwif->io_ports.status_addr); else return inb(hwif->io_ports.status_addr); } +EXPORT_SYMBOL_GPL(ide_read_status); -static u8 ide_read_altstatus(ide_hwif_t *hwif) +u8 ide_read_altstatus(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) return readb((void __iomem *)hwif->io_ports.ctl_addr); else return inb(hwif->io_ports.ctl_addr); } +EXPORT_SYMBOL_GPL(ide_read_altstatus); -static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) +u8 ide_read_sff_dma_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) return readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)); else return inb(hwif->dma_base + ATA_DMA_STATUS); } +EXPORT_SYMBOL_GPL(ide_read_sff_dma_status); -static void ide_set_irq(ide_hwif_t *hwif, int on) +void ide_set_irq(ide_hwif_t *hwif, int on) { u8 ctl = ATA_DEVCTL_OBS; @@ -127,8 +131,9 @@ static void ide_set_irq(ide_hwif_t *hwif, int on) else outb(ctl, hwif->io_ports.ctl_addr); } +EXPORT_SYMBOL_GPL(ide_set_irq); -static void ide_tf_load(ide_drive_t *drive, ide_task_t *task) +void ide_tf_load(ide_drive_t *drive, ide_task_t *task) { ide_hwif_t *hwif = drive->hwif; struct ide_io_ports *io_ports = &hwif->io_ports; @@ -180,8 +185,9 @@ static void ide_tf_load(ide_drive_t *drive, ide_task_t *task) tf_outb((tf->device & HIHI) | drive->select.all, io_ports->device_addr); } +EXPORT_SYMBOL_GPL(ide_tf_load); -static void ide_tf_read(ide_drive_t *drive, ide_task_t *task) +void ide_tf_read(ide_drive_t *drive, ide_task_t *task) { ide_hwif_t *hwif = drive->hwif; struct ide_io_ports *io_ports = &hwif->io_ports; @@ -241,6 +247,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task) tf->hob_lbah = tf_inb(io_ports->lbah_addr); } } +EXPORT_SYMBOL_GPL(ide_tf_read); /* * Some localbus EIDE interfaces require a special access sequence @@ -263,8 +270,8 @@ static void ata_vlb_sync(unsigned long port) * so if an odd len is specified, be sure that there's at least one * extra byte allocated for the buffer. */ -static void ata_input_data(ide_drive_t *drive, struct request *rq, - void *buf, unsigned int len) +void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf, + unsigned int len) { ide_hwif_t *hwif = drive->hwif; struct ide_io_ports *io_ports = &hwif->io_ports; @@ -304,12 +311,13 @@ static void ata_input_data(ide_drive_t *drive, struct request *rq, insw(data_addr, buf, len / 2); } } +EXPORT_SYMBOL_GPL(ide_input_data); /* * This is used for most PIO data transfers *to* the IDE interface */ -static void ata_output_data(ide_drive_t *drive, struct request *rq, - void *buf, unsigned int len) +void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf, + unsigned int len) { ide_hwif_t *hwif = drive->hwif; struct ide_io_ports *io_ports = &hwif->io_ports; @@ -347,22 +355,7 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq, outsw(data_addr, buf, len / 2); } } - -void default_hwif_transport(ide_hwif_t *hwif) -{ - hwif->exec_command = ide_exec_command; - hwif->read_status = ide_read_status; - hwif->read_altstatus = ide_read_altstatus; - hwif->read_sff_dma_status = ide_read_sff_dma_status; - - hwif->set_irq = ide_set_irq; - - hwif->tf_load = ide_tf_load; - hwif->tf_read = ide_tf_read; - - hwif->input_data = ata_input_data; - hwif->output_data = ata_output_data; -} +EXPORT_SYMBOL_GPL(ide_output_data); u8 ide_read_error(ide_drive_t *drive) { @@ -371,7 +364,7 @@ u8 ide_read_error(ide_drive_t *drive) memset(&task, 0, sizeof(task)); task.tf_flags = IDE_TFLAG_IN_FEATURE; - drive->hwif->tf_read(drive, &task); + drive->hwif->tp_ops->tf_read(drive, &task); return task.tf.error; } @@ -385,13 +378,28 @@ void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason) task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM | IDE_TFLAG_IN_NSECT; - drive->hwif->tf_read(drive, &task); + drive->hwif->tp_ops->tf_read(drive, &task); *bcount = (task.tf.lbah << 8) | task.tf.lbam; *ireason = task.tf.nsect & 3; } EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason); +const struct ide_tp_ops default_tp_ops = { + .exec_command = ide_exec_command, + .read_status = ide_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = ide_read_sff_dma_status, + + .set_irq = ide_set_irq, + + .tf_load = ide_tf_load, + .tf_read = ide_tf_read, + + .input_data = ide_input_data, + .output_data = ide_output_data, +}; + void ide_fix_driveid (struct hd_driveid *id) { #ifndef __LITTLE_ENDIAN @@ -545,10 +553,10 @@ int drive_is_ready (ide_drive_t *drive) * about possible isa-pnp and pci-pnp issues yet. */ if (hwif->io_ports.ctl_addr) - stat = hwif->read_altstatus(hwif); + stat = hwif->tp_ops->read_altstatus(hwif); else /* Note: this may clear a pending IRQ!! */ - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (stat & BUSY_STAT) /* drive busy: definitely not interrupting */ @@ -574,24 +582,25 @@ EXPORT_SYMBOL(drive_is_ready); static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout, u8 *rstat) { ide_hwif_t *hwif = drive->hwif; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; unsigned long flags; int i; u8 stat; udelay(1); /* spec allows drive 400ns to assert "BUSY" */ - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (stat & BUSY_STAT) { local_irq_set(flags); timeout += jiffies; - while ((stat = hwif->read_status(hwif)) & BUSY_STAT) { + while ((stat = tp_ops->read_status(hwif)) & BUSY_STAT) { if (time_after(jiffies, timeout)) { /* * One last read after the timeout in case * heavy interrupt load made us not make any * progress during the timeout.. */ - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (!(stat & BUSY_STAT)) break; @@ -611,7 +620,7 @@ static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long ti */ for (i = 0; i < 10; i++) { udelay(1); - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (OK_STAT(stat, good, bad)) { *rstat = stat; @@ -737,6 +746,7 @@ no_80w: int ide_driveid_update(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; struct hd_driveid *id; unsigned long timeout, flags; u8 stat; @@ -747,9 +757,9 @@ int ide_driveid_update(ide_drive_t *drive) */ SELECT_MASK(drive, 1); - hwif->set_irq(hwif, 0); + tp_ops->set_irq(hwif, 0); msleep(50); - hwif->exec_command(hwif, WIN_IDENTIFY); + tp_ops->exec_command(hwif, WIN_IDENTIFY); timeout = jiffies + WAIT_WORSTCASE; do { if (time_after(jiffies, timeout)) { @@ -758,11 +768,11 @@ int ide_driveid_update(ide_drive_t *drive) } msleep(50); /* give drive a breather */ - stat = hwif->read_altstatus(hwif); + stat = tp_ops->read_altstatus(hwif); } while (stat & BUSY_STAT); msleep(50); /* wait for IRQ and DRQ_STAT */ - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (!OK_STAT(stat, DRQ_STAT, BAD_R_STAT)) { SELECT_MASK(drive, 0); @@ -776,8 +786,8 @@ int ide_driveid_update(ide_drive_t *drive) local_irq_restore(flags); return 0; } - hwif->input_data(drive, NULL, id, SECTOR_SIZE); - (void)hwif->read_status(hwif); /* clear drive IRQ */ + tp_ops->input_data(drive, NULL, id, SECTOR_SIZE); + (void)tp_ops->read_status(hwif); /* clear drive IRQ */ local_irq_enable(); local_irq_restore(flags); ide_fix_driveid(id); @@ -798,6 +808,7 @@ int ide_driveid_update(ide_drive_t *drive) int ide_config_drive_speed(ide_drive_t *drive, u8 speed) { ide_hwif_t *hwif = drive->hwif; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; int error = 0; u8 stat; ide_task_t task; @@ -833,19 +844,19 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) SELECT_DRIVE(drive); SELECT_MASK(drive, 0); udelay(1); - hwif->set_irq(hwif, 0); + tp_ops->set_irq(hwif, 0); memset(&task, 0, sizeof(task)); task.tf_flags = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT; task.tf.feature = SETFEATURES_XFER; task.tf.nsect = speed; - hwif->tf_load(drive, &task); + tp_ops->tf_load(drive, &task); - hwif->exec_command(hwif, WIN_SETFEATURES); + tp_ops->exec_command(hwif, WIN_SETFEATURES); if (drive->quirk_list == 2) - hwif->set_irq(hwif, 1); + tp_ops->set_irq(hwif, 1); error = __ide_wait_stat(drive, drive->ready_stat, BUSY_STAT|DRQ_STAT|ERR_STAT, @@ -950,7 +961,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler, spin_lock_irqsave(&ide_lock, flags); __ide_set_handler(drive, handler, timeout, expiry); - hwif->exec_command(hwif, cmd); + hwif->tp_ops->exec_command(hwif, cmd); /* * Drive takes 400nS to respond, we must avoid the IRQ being * serviced before that. @@ -968,7 +979,7 @@ void ide_execute_pkt_cmd(ide_drive_t *drive) unsigned long flags; spin_lock_irqsave(&ide_lock, flags); - hwif->exec_command(hwif, WIN_PACKETCMD); + hwif->tp_ops->exec_command(hwif, WIN_PACKETCMD); ndelay(400); spin_unlock_irqrestore(&ide_lock, flags); } @@ -999,7 +1010,7 @@ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive) SELECT_DRIVE(drive); udelay (10); - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (OK_STAT(stat, 0, BUSY_STAT)) printk("%s: ATAPI reset complete\n", drive->name); @@ -1045,7 +1056,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive) } } - tmp = hwif->read_status(hwif); + tmp = hwif->tp_ops->read_status(hwif); if (!OK_STAT(tmp, 0, BUSY_STAT)) { if (time_before(jiffies, hwgroup->poll_timeout)) { @@ -1159,6 +1170,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) ide_hwif_t *hwif; ide_hwgroup_t *hwgroup; struct ide_io_ports *io_ports; + const struct ide_tp_ops *tp_ops; const struct ide_port_ops *port_ops; spin_lock_irqsave(&ide_lock, flags); @@ -1167,6 +1179,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) io_ports = &hwif->io_ports; + tp_ops = hwif->tp_ops; + /* We must not reset with running handlers */ BUG_ON(hwgroup->handler != NULL); @@ -1175,7 +1189,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) pre_reset(drive); SELECT_DRIVE(drive); udelay (20); - hwif->exec_command(hwif, WIN_SRST); + tp_ops->exec_command(hwif, WIN_SRST); ndelay(400); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; hwgroup->polling = 1; @@ -1208,11 +1222,11 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) * TODO: add ->softreset method and stop abusing ->set_irq */ /* set SRST and nIEN */ - hwif->set_irq(hwif, 4); + tp_ops->set_irq(hwif, 4); /* more than enough time */ udelay(10); /* clear SRST, leave nIEN (unless device is on the quirk list) */ - hwif->set_irq(hwif, drive->quirk_list == 2); + tp_ops->set_irq(hwif, drive->quirk_list == 2); /* more than enough time */ udelay(10); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; @@ -1257,7 +1271,7 @@ int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout) * about locking issues (2.5 work ?). */ mdelay(1); - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if ((stat & BUSY_STAT) == 0) return 0; /* diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index 7ac44d515470..97fefabea8b8 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -325,7 +325,7 @@ static void ide_dump_sector(ide_drive_t *drive) else task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE; - drive->hwif->tf_read(drive, &task); + drive->hwif->tp_ops->tf_read(drive, &task); if (lba48 || (tf->device & ATA_LBA)) printk(", LBAsect=%llu", diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 3cc8ade2cc4f..c588066295db 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -126,7 +126,7 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) id = drive->id; /* read 512 bytes of id info */ - hwif->input_data(drive, NULL, id, SECTOR_SIZE); + hwif->tp_ops->input_data(drive, NULL, id, SECTOR_SIZE); drive->id_read = 1; local_irq_enable(); @@ -267,6 +267,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) { ide_hwif_t *hwif = HWIF(drive); struct ide_io_ports *io_ports = &hwif->io_ports; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; int use_altstatus = 0, rc; unsigned long timeout; u8 s = 0, a = 0; @@ -275,8 +276,8 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) msleep(50); if (io_ports->ctl_addr) { - a = hwif->read_altstatus(hwif); - s = hwif->read_status(hwif); + a = tp_ops->read_altstatus(hwif); + s = tp_ops->read_status(hwif); if ((a ^ s) & ~INDEX_STAT) /* ancient Seagate drives, broken interfaces */ printk(KERN_INFO "%s: probing with STATUS(0x%02x) " @@ -297,11 +298,11 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) /* disable DMA & overlap */ task.tf_flags = IDE_TFLAG_OUT_FEATURE; - drive->hwif->tf_load(drive, &task); + tp_ops->tf_load(drive, &task); } /* ask drive for ID */ - hwif->exec_command(hwif, cmd); + tp_ops->exec_command(hwif, cmd); timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; timeout += jiffies; @@ -312,13 +313,13 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) } /* give drive a breather */ msleep(50); - s = use_altstatus ? hwif->read_altstatus(hwif) - : hwif->read_status(hwif); + s = use_altstatus ? tp_ops->read_altstatus(hwif) + : tp_ops->read_status(hwif); } while (s & BUSY_STAT); /* wait for IRQ and DRQ_STAT */ msleep(50); - s = hwif->read_status(hwif); + s = tp_ops->read_status(hwif); if (OK_STAT(s, DRQ_STAT, BAD_R_STAT)) { unsigned long flags; @@ -330,7 +331,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) /* drive responded with ID */ rc = 0; /* clear drive IRQ */ - (void)hwif->read_status(hwif); + (void)tp_ops->read_status(hwif); local_irq_restore(flags); } else { /* drive refused ID */ @@ -352,6 +353,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) static int try_to_identify (ide_drive_t *drive, u8 cmd) { ide_hwif_t *hwif = HWIF(drive); + const struct ide_tp_ops *tp_ops = hwif->tp_ops; int retval; int autoprobe = 0; unsigned long cookie = 0; @@ -367,7 +369,7 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) autoprobe = 1; cookie = probe_irq_on(); } - hwif->set_irq(hwif, autoprobe); + tp_ops->set_irq(hwif, autoprobe); } retval = actual_try_to_identify(drive, cmd); @@ -375,9 +377,9 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) if (autoprobe) { int irq; - hwif->set_irq(hwif, 0); + tp_ops->set_irq(hwif, 0); /* clear drive IRQ */ - (void)hwif->read_status(hwif); + (void)tp_ops->read_status(hwif); udelay(5); irq = probe_irq_off(cookie); if (!hwif->irq) { @@ -402,7 +404,7 @@ static int ide_busy_sleep(ide_hwif_t *hwif) do { msleep(50); - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if ((stat & BUSY_STAT) == 0) return 0; } while (time_before(jiffies, timeout)); @@ -417,7 +419,7 @@ static u8 ide_read_device(ide_drive_t *drive) memset(&task, 0, sizeof(task)); task.tf_flags = IDE_TFLAG_IN_DEVICE; - drive->hwif->tf_read(drive, &task); + drive->hwif->tp_ops->tf_read(drive, &task); return task.tf.device; } @@ -446,6 +448,7 @@ static u8 ide_read_device(ide_drive_t *drive) static int do_probe (ide_drive_t *drive, u8 cmd) { ide_hwif_t *hwif = HWIF(drive); + const struct ide_tp_ops *tp_ops = hwif->tp_ops; int rc; u8 stat; @@ -478,7 +481,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) return 3; } - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (OK_STAT(stat, READY_STAT, BUSY_STAT) || drive->present || cmd == WIN_PIDENTIFY) { @@ -488,7 +491,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) rc = try_to_identify(drive,cmd); } - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (stat == (BUSY_STAT | READY_STAT)) return 4; @@ -499,13 +502,13 @@ static int do_probe (ide_drive_t *drive, u8 cmd) msleep(50); SELECT_DRIVE(drive); msleep(50); - hwif->exec_command(hwif, WIN_SRST); + tp_ops->exec_command(hwif, WIN_SRST); (void)ide_busy_sleep(hwif); rc = try_to_identify(drive, cmd); } /* ensure drive IRQ is clear */ - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (rc == 1) printk(KERN_ERR "%s: no response (status = 0x%02x)\n", @@ -519,7 +522,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) SELECT_DRIVE(&hwif->drives[0]); msleep(50); /* ensure drive irq is clear */ - (void)hwif->read_status(hwif); + (void)tp_ops->read_status(hwif); } return rc; } @@ -530,12 +533,13 @@ static int do_probe (ide_drive_t *drive, u8 cmd) static void enable_nest (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); + const struct ide_tp_ops *tp_ops = hwif->tp_ops; u8 stat; printk("%s: enabling %s -- ", hwif->name, drive->id->model); SELECT_DRIVE(drive); msleep(50); - hwif->exec_command(hwif, EXABYTE_ENABLE_NEST); + tp_ops->exec_command(hwif, EXABYTE_ENABLE_NEST); if (ide_busy_sleep(hwif)) { printk(KERN_CONT "failed (timeout)\n"); @@ -544,7 +548,7 @@ static void enable_nest (ide_drive_t *drive) msleep(50); - stat = hwif->read_status(hwif); + stat = tp_ops->read_status(hwif); if (!OK_STAT(stat, 0, BAD_STAT)) printk(KERN_CONT "failed (status = 0x%02x)\n", stat); @@ -726,7 +730,7 @@ static int ide_port_wait_ready(ide_hwif_t *hwif) /* Ignore disks that we will not probe for later. */ if (!drive->noprobe || drive->present) { SELECT_DRIVE(drive); - hwif->set_irq(hwif, 1); + hwif->tp_ops->set_irq(hwif, 1); mdelay(2); rc = ide_wait_not_busy(hwif, 35000); if (rc) @@ -1083,7 +1087,7 @@ static int init_irq (ide_hwif_t *hwif) sa = IRQF_SHARED; if (io_ports->ctl_addr) - hwif->set_irq(hwif, 1); + hwif->tp_ops->set_irq(hwif, 1); if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup)) goto out_unlink; @@ -1361,6 +1365,9 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port, hwif->host_flags |= d->host_flags; hwif->pio_mask = d->pio_mask; + if (d->tp_ops) + hwif->tp_ops = d->tp_ops; + /* ->set_pio_mode for DTC2278 is currently limited to port 0 */ if (hwif->chipset != ide_dtc2278 || hwif->channel == 0) hwif->port_ops = d->port_ops; diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index ef54728a74b0..0af128826f1e 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -398,7 +398,7 @@ static void idetape_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, count = min( (unsigned int)(bh->b_size - atomic_read(&bh->b_count)), bcount); - drive->hwif->input_data(drive, NULL, bh->b_data + + drive->hwif->tp_ops->input_data(drive, NULL, bh->b_data + atomic_read(&bh->b_count), count); bcount -= count; atomic_add(count, &bh->b_count); @@ -424,7 +424,7 @@ static void idetape_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, return; } count = min((unsigned int)pc->b_count, (unsigned int)bcount); - drive->hwif->output_data(drive, NULL, pc->b_data, count); + drive->hwif->tp_ops->output_data(drive, NULL, pc->b_data, count); bcount -= count; pc->b_data += count; pc->b_count -= count; @@ -932,7 +932,7 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) struct ide_atapi_pc *pc = tape->pc; u8 stat; - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (stat & SEEK_STAT) { if (stat & ERR_STAT) { @@ -1019,7 +1019,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, * If the tape is still busy, postpone our request and service * the other device meanwhile. */ - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (!drive->dsc_overlap && !(rq->cmd[0] & REQ_IDETAPE_PC2)) set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index ea345369553e..aeddbbd69e86 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -64,6 +64,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) ide_hwif_t *hwif = HWIF(drive); struct ide_taskfile *tf = &task->tf; ide_handler_t *handler = NULL; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; const struct ide_dma_ops *dma_ops = hwif->dma_ops; if (task->data_phase == TASKFILE_MULTI_IN || @@ -80,15 +81,15 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { ide_tf_dump(drive->name, tf); - hwif->set_irq(hwif, 1); + tp_ops->set_irq(hwif, 1); SELECT_MASK(drive, 0); - hwif->tf_load(drive, task); + tp_ops->tf_load(drive, task); } switch (task->data_phase) { case TASKFILE_MULTI_OUT: case TASKFILE_OUT: - hwif->exec_command(hwif, tf->command); + tp_ops->exec_command(hwif, tf->command); ndelay(400); /* FIXME */ return pre_task_out_intr(drive, task->rq); case TASKFILE_MULTI_IN: @@ -125,7 +126,7 @@ EXPORT_SYMBOL_GPL(do_rw_taskfile); static ide_startstop_t set_multmode_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - u8 stat = hwif->read_status(hwif); + u8 stat = hwif->tp_ops->read_status(hwif); if (OK_STAT(stat, READY_STAT, BAD_STAT)) drive->mult_count = drive->mult_req; @@ -146,8 +147,12 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) int retries = 5; u8 stat; - while (((stat = hwif->read_status(hwif)) & BUSY_STAT) && retries--) + while (1) { + stat = hwif->tp_ops->read_status(hwif); + if ((stat & BUSY_STAT) == 0 || retries-- == 0) + break; udelay(10); + }; if (OK_STAT(stat, READY_STAT, BAD_STAT)) return ide_stopped; @@ -165,7 +170,7 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) static ide_startstop_t recal_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - u8 stat = hwif->read_status(hwif); + u8 stat = hwif->tp_ops->read_status(hwif); if (!OK_STAT(stat, READY_STAT, BAD_STAT)) return ide_error(drive, "recal_intr", stat); @@ -182,7 +187,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive) u8 stat; local_irq_enable_in_hardirq(); - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (!OK_STAT(stat, READY_STAT, BAD_STAT)) return ide_error(drive, "task_no_data_intr", stat); @@ -205,7 +210,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive) * take up to 6 ms on some ATAPI devices, so we will wait max 10 ms. */ for (retries = 0; retries < 1000; retries++) { - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (stat & BUSY_STAT) udelay(10); @@ -260,9 +265,9 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq, /* do the actual data transfer */ if (write) - hwif->output_data(drive, rq, buf, SECTOR_SIZE); + hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE); else - hwif->input_data(drive, rq, buf, SECTOR_SIZE); + hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE); kunmap_atomic(buf, KM_BIO_SRC_IRQ); #ifdef CONFIG_HIGHMEM @@ -389,7 +394,7 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; struct request *rq = hwif->hwgroup->rq; - u8 stat = hwif->read_status(hwif); + u8 stat = hwif->tp_ops->read_status(hwif); /* Error? */ if (stat & ERR_STAT) @@ -423,7 +428,7 @@ static ide_startstop_t task_out_intr (ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; struct request *rq = HWGROUP(drive)->rq; - u8 stat = hwif->read_status(hwif); + u8 stat = hwif->tp_ops->read_status(hwif); if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat)) return task_error(drive, rq, __func__, stat); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 961f31c648c9..132b504168e9 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -101,7 +101,7 @@ void ide_init_port_data(ide_hwif_t *hwif, unsigned int index) init_completion(&hwif->gendev_rel_comp); - default_hwif_transport(hwif); + hwif->tp_ops = &default_tp_ops; ide_port_init_devices_data(hwif); } diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c index 1bb2aa72cc7f..3e2c6125f031 100644 --- a/drivers/ide/legacy/falconide.c +++ b/drivers/ide/legacy/falconide.c @@ -66,6 +66,27 @@ static void falconide_output_data(ide_drive_t *drive, struct request *rq, outsw_swapw(data_addr, buf, (len + 1) / 2); } +/* Atari has a byte-swapped IDE interface */ +static const struct ide_tp_ops falconide_tp_ops = { + .exec_command = ide_exec_command, + .read_status = ide_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = ide_read_sff_dma_status, + + .set_irq = ide_set_irq, + + .tf_load = ide_tf_load, + .tf_read = ide_tf_read, + + .input_data = falconide_input_data, + .output_data = falconide_output_data, +}; + +static const struct ide_port_info falconide_port_info = { + .tp_ops = &falconide_tp_ops, + .host_flags = IDE_HFLAG_NO_DMA, +}; + static void __init falconide_setup_ports(hw_regs_t *hw) { int i; @@ -111,12 +132,8 @@ static int __init falconide_init(void) u8 index = hwif->index; u8 idx[4] = { index, 0xff, 0xff, 0xff }; - /* Atari has a byte-swapped IDE interface */ - hwif->input_data = falconide_input_data; - hwif->output_data = falconide_output_data; - ide_get_lock(NULL, NULL); - ide_device_add(idx, NULL, hws); + ide_device_add(idx, &falconide_port_info, hws); ide_release_lock(); } diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c index fcb04b8b0238..2dc306f852a6 100644 --- a/drivers/ide/legacy/q40ide.c +++ b/drivers/ide/legacy/q40ide.c @@ -96,6 +96,27 @@ static void q40ide_output_data(ide_drive_t *drive, struct request *rq, outsw_swapw(data_addr, buf, (len + 1) / 2); } +/* Q40 has a byte-swapped IDE interface */ +static const struct ide_tp_ops q40ide_tp_ops = { + .exec_command = ide_exec_command, + .read_status = ide_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = ide_read_sff_dma_status, + + .set_irq = ide_set_irq, + + .tf_load = ide_tf_load, + .tf_read = ide_tf_read, + + .input_data = q40ide_input_data, + .output_data = q40ide_output_data, +}; + +static const struct ide_port_info q40ide_port_info = { + .tp_ops = &q40ide_tp_ops, + .host_flags = IDE_HFLAG_NO_DMA, +}; + /* * the static array is needed to have the name reported in /proc/ioports, * hwif->name unfortunately isn't available yet @@ -141,16 +162,12 @@ static int __init q40ide_init(void) if (hwif) { hwif->chipset = ide_generic; - /* Q40 has a byte-swapped IDE interface */ - hwif->input_data = q40ide_input_data; - hwif->output_data = q40ide_output_data; - hws[i] = &hw[i]; idx[i] = hwif->index; } } - ide_device_add(idx, NULL, hws); + ide_device_add(idx, &q40ide_port_info, hws); return 0; } diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index 475da582fd89..ed1c9a134079 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -519,6 +519,23 @@ static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif) *ata_regs = ahwif->regbase + (14 << IDE_REG_SHIFT); } +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA +static const struct ide_tp_ops au1xxx_tp_ops = { + .exec_command = ide_exec_command, + .read_status = ide_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = ide_read_sff_dma_status, + + .set_irq = ide_set_irq, + + .tf_load = ide_tf_load, + .tf_read = ide_tf_read, + + .input_data = au1xxx_input_data, + .output_data = au1xxx_output_data, +}; +#endif + static const struct ide_port_ops au1xxx_port_ops = { .set_pio_mode = au1xxx_set_pio_mode, .set_dma_mode = auide_set_dma_mode, @@ -526,6 +543,9 @@ static const struct ide_port_ops au1xxx_port_ops = { static const struct ide_port_info au1xxx_port_info = { .init_dma = auide_ddma_init, +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA + .tp_ops = &au1xxx_tp_ops, +#endif .port_ops = &au1xxx_port_ops, #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA .dma_ops = &au1xxx_dma_ops, @@ -596,15 +616,6 @@ static int au_ide_probe(struct device *dev) hw.dev = dev; hw.chipset = ide_au1xxx; - /* If the user has selected DDMA assisted copies, - then set up a few local I/O function entry points - */ - -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA - hwif->input_data = au1xxx_input_data; - hwif->output_data = au1xxx_output_data; -#endif - auide_hwif.hwif = hwif; idx[0] = hwif->index; diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index 02fd3a877afa..5cd2b32ff0ef 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -104,7 +104,22 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) } } -static void __devinit superio_ide_init_iops (struct hwif_s *hwif) +static const struct ide_tp_ops superio_tp_ops = { + .exec_command = ide_exec_command, + .read_status = superio_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = superio_read_sff_dma_status, + + .set_irq = ide_set_irq, + + .tf_load = ide_tf_load, + .tf_read = superio_tf_read, + + .input_data = ide_input_data, + .output_data = ide_output_data, +}; + +static void __devinit superio_init_iops(struct hwif_s *hwif) { struct pci_dev *pdev = to_pci_dev(hwif->dev); u32 dma_stat; @@ -115,21 +130,6 @@ static void __devinit superio_ide_init_iops (struct hwif_s *hwif) /* Clear error/interrupt, enable dma */ tmp = superio_ide_inb(dma_stat); outb(tmp | 0x66, dma_stat); - - hwif->read_status = superio_read_status; - hwif->read_sff_dma_status = superio_read_sff_dma_status; - - hwif->tf_read = superio_tf_read; - -} - -static void __devinit init_iops_ns87415(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - - if (PCI_SLOT(dev->devfn) == 0xE) - /* Built-in - assume it's under superio. */ - superio_ide_init_iops(hwif); } #endif @@ -195,7 +195,7 @@ static int ns87415_dma_end(ide_drive_t *drive) u8 dma_stat = 0, dma_cmd = 0; drive->waiting_for_dma = 0; - dma_stat = hwif->read_sff_dma_status(hwif); + dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); /* get DMA command mode */ dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); /* stop DMA */ @@ -271,7 +271,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) outb(8, hwif->io_ports.ctl_addr); do { udelay(50); - stat = hwif->read_status(hwif); + stat = hwif->tp_ops->read_status(hwif); if (stat == 0xff) break; } while ((stat & BUSY_STAT) && --timeout); @@ -306,9 +306,6 @@ static const struct ide_dma_ops ns87415_dma_ops = { static const struct ide_port_info ns87415_chipset __devinitdata = { .name = "NS87415", -#ifdef CONFIG_SUPERIO - .init_iops = init_iops_ns87415, -#endif .init_hwif = init_hwif_ns87415, .port_ops = &ns87415_port_ops, .dma_ops = &ns87415_dma_ops, @@ -318,7 +315,16 @@ static const struct ide_port_info ns87415_chipset __devinitdata = { static int __devinit ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &ns87415_chipset); + struct ide_port_info d = ns87415_chipset; + +#ifdef CONFIG_SUPERIO + if (PCI_SLOT(dev->devfn) == 0xE) { + /* Built-in - assume it's under superio. */ + d.init_iops = superio_init_iops; + d.tp_ops = &superio_tp_ops; + } +#endif + return ide_setup_pci_device(dev, &d); } static const struct pci_device_id ns87415_pci_tbl[] = { diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 38765d9b0314..5b1a0e950dfd 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -808,19 +808,6 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) ide_set_hwifdata(hwif, ports); - hwif->exec_command = scc_exec_command; - hwif->read_status = scc_read_status; - hwif->read_altstatus = scc_read_altstatus; - hwif->read_sff_dma_status = scc_read_sff_dma_status; - - hwif->set_irq = scc_set_irq; - - hwif->tf_load = scc_tf_load; - hwif->tf_read = scc_tf_read; - - hwif->input_data = scc_input_data; - hwif->output_data = scc_output_data; - hwif->dma_base = dma_base; hwif->config_data = ports->ctl; } @@ -872,6 +859,21 @@ static void __devinit init_hwif_scc(ide_hwif_t *hwif) hwif->ultra_mask = ATA_UDMA5; /* 100MHz */ } +static const struct ide_tp_ops scc_tp_ops = { + .exec_command = scc_exec_command, + .read_status = scc_read_status, + .read_altstatus = scc_read_altstatus, + .read_sff_dma_status = scc_read_sff_dma_status, + + .set_irq = scc_set_irq, + + .tf_load = scc_tf_load, + .tf_read = scc_tf_read, + + .input_data = scc_input_data, + .output_data = scc_output_data, +}; + static const struct ide_port_ops scc_port_ops = { .set_pio_mode = scc_set_pio_mode, .set_dma_mode = scc_set_dma_mode, @@ -895,6 +897,7 @@ static const struct ide_dma_ops scc_dma_ops = { .name = name_str, \ .init_iops = init_iops_scc, \ .init_hwif = init_hwif_scc, \ + .tp_ops = &scc_tp_ops, \ .port_ops = &scc_port_ops, \ .dma_ops = &scc_dma_ops, \ .host_flags = IDE_HFLAG_SINGLE, \ diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 86f7c4901837..5598bd5936d9 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -550,6 +550,21 @@ static int sgiioc4_dma_setup(ide_drive_t *drive) return 0; } +static const struct ide_tp_ops sgiioc4_tp_ops = { + .exec_command = ide_exec_command, + .read_status = sgiioc4_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = ide_read_sff_dma_status, + + .set_irq = ide_set_irq, + + .tf_load = ide_tf_load, + .tf_read = ide_tf_read, + + .input_data = ide_input_data, + .output_data = ide_output_data, +}; + static const struct ide_port_ops sgiioc4_port_ops = { .set_dma_mode = sgiioc4_set_dma_mode, /* reset DMA engine, clear IRQs */ @@ -572,6 +587,7 @@ static const struct ide_port_info sgiioc4_port_info __devinitdata = { .name = DRV_NAME, .chipset = ide_pci, .init_dma = ide_dma_sgiioc4, + .tp_ops = &sgiioc4_tp_ops, .port_ops = &sgiioc4_port_ops, .dma_ops = &sgiioc4_dma_ops, .host_flags = IDE_HFLAG_MMIO, @@ -626,8 +642,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) /* Initializing chipset IRQ Registers */ writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4)); - hwif->read_status = sgiioc4_read_status; - idx[0] = hwif->index; if (ide_device_add(idx, &d, hws)) diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index ed073c6635a8..ee557d10a764 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -974,6 +974,21 @@ static void pmac_ide_init_dev(ide_drive_t *drive) } } +static const struct ide_tp_ops pmac_tp_ops = { + .exec_command = pmac_exec_command, + .read_status = ide_read_status, + .read_altstatus = ide_read_altstatus, + .read_sff_dma_status = ide_read_sff_dma_status, + + .set_irq = pmac_set_irq, + + .tf_load = ide_tf_load, + .tf_read = ide_tf_read, + + .input_data = ide_input_data, + .output_data = ide_output_data, +}; + static const struct ide_port_ops pmac_ide_ata6_port_ops = { .init_dev = pmac_ide_init_dev, .set_pio_mode = pmac_ide_set_pio_mode, @@ -1003,10 +1018,11 @@ static const struct ide_port_info pmac_port_info = { .name = DRV_NAME, .init_dma = pmac_ide_init_dma, .chipset = ide_pmac, + .tp_ops = &pmac_tp_ops, + .port_ops = &pmac_ide_port_ops, #ifdef CONFIG_BLK_DEV_IDEDMA_PMAC .dma_ops = &pmac_dma_ops, #endif - .port_ops = &pmac_ide_port_ops, .host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA | IDE_HFLAG_POST_SET_MODE | IDE_HFLAG_MMIO | @@ -1106,9 +1122,6 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) if (hwif == NULL) return -ENOENT; - hwif->exec_command = pmac_exec_command; - hwif->set_irq = pmac_set_irq; - idx[0] = hwif->index; ide_device_add(idx, &d, hws); diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index c1b609d9cb28..804c3ef245f9 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -125,7 +125,7 @@ int ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) * we tune the drive then try to grab DMA ownership if we want to be * the DMA end. This has to be become dynamic to handle hot-plug. */ - dma_stat = hwif->read_sff_dma_status(hwif); + dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name); return -1; diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 2a86af91f64a..659db3f7ae08 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -142,7 +142,8 @@ static void ide_scsi_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, unsigned int bcount, int write) { ide_hwif_t *hwif = drive->hwif; - xfer_func_t *xf = write ? hwif->output_data : hwif->input_data; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; + xfer_func_t *xf = write ? tp_ops->output_data : tp_ops->input_data; char *buf; int count; @@ -246,9 +247,9 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) { ide_hwif_t *hwif = drive->hwif; - if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) + if (hwif->tp_ops->read_status(hwif) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->exec_command(hwif, WIN_IDLEIMMEDIATE); + hwif->tp_ops->exec_command(hwif, WIN_IDLEIMMEDIATE); rq->errors++; diff --git a/include/linux/ide.h b/include/linux/ide.h index e340218b2a5f..1286a2275efb 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -408,8 +408,28 @@ typedef struct ide_drive_s { ((1<> (c)) & 1) +struct ide_task_s; struct ide_port_info; +struct ide_tp_ops { + void (*exec_command)(struct hwif_s *, u8); + u8 (*read_status)(struct hwif_s *); + u8 (*read_altstatus)(struct hwif_s *); + u8 (*read_sff_dma_status)(struct hwif_s *); + + void (*set_irq)(struct hwif_s *, int); + + void (*tf_load)(ide_drive_t *, struct ide_task_s *); + void (*tf_read)(ide_drive_t *, struct ide_task_s *); + + void (*input_data)(ide_drive_t *, struct request *, void *, + unsigned int); + void (*output_data)(ide_drive_t *, struct request *, void *, + unsigned int); +}; + +extern const struct ide_tp_ops default_tp_ops; + struct ide_port_ops { /* host specific initialization of a device */ void (*init_dev)(ide_drive_t *); @@ -447,8 +467,6 @@ struct ide_dma_ops { void (*dma_timeout)(struct ide_drive_s *); }; -struct ide_task_s; - typedef struct hwif_s { struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ struct hwif_s *mate; /* other hwif from same PCI chip */ @@ -486,22 +504,10 @@ typedef struct hwif_s { void (*rw_disk)(ide_drive_t *, struct request *); + const struct ide_tp_ops *tp_ops; const struct ide_port_ops *port_ops; const struct ide_dma_ops *dma_ops; - void (*exec_command)(struct hwif_s *, u8); - u8 (*read_status)(struct hwif_s *); - u8 (*read_altstatus)(struct hwif_s *); - u8 (*read_sff_dma_status)(struct hwif_s *); - - void (*set_irq)(struct hwif_s *, int); - - void (*tf_load)(ide_drive_t *, struct ide_task_s *); - void (*tf_read)(ide_drive_t *, struct ide_task_s *); - - void (*input_data)(ide_drive_t *, struct request *, void *, unsigned); - void (*output_data)(ide_drive_t *, struct request *, void *, unsigned); - void (*ide_dma_clear_irq)(ide_drive_t *drive); /* dma physical region descriptor table (cpu view) */ @@ -949,6 +955,19 @@ typedef struct ide_task_s { void ide_tf_dump(const char *, struct ide_taskfile *); +void ide_exec_command(ide_hwif_t *, u8); +u8 ide_read_status(ide_hwif_t *); +u8 ide_read_altstatus(ide_hwif_t *); +u8 ide_read_sff_dma_status(ide_hwif_t *); + +void ide_set_irq(ide_hwif_t *, int); + +void ide_tf_load(ide_drive_t *, ide_task_t *); +void ide_tf_read(ide_drive_t *, ide_task_t *); + +void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int); +void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int); + extern void SELECT_DRIVE(ide_drive_t *); void SELECT_MASK(ide_drive_t *, int); @@ -1022,8 +1041,6 @@ static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, } #endif -extern void default_hwif_transport(ide_hwif_t *); - typedef struct ide_pci_enablebit_s { u8 reg; /* byte pci reg holding the enable-bit */ u8 mask; /* mask to isolate the enable-bit */ @@ -1112,6 +1129,7 @@ struct ide_port_info { int (*init_dma)(ide_hwif_t *, const struct ide_port_info *); + const struct ide_tp_ops *tp_ops; const struct ide_port_ops *port_ops; const struct ide_dma_ops *dma_ops; -- cgit v1.2.3 From 48c3c1072651922ed153bcf0a33ea82cf20df390 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:57 +0200 Subject: ide: add struct ide_host (take 3) * Add struct ide_host which keeps pointers to host's ports. * Add ide_host_alloc[_all]() and ide_host_remove() helpers. * Pass 'struct ide_host *host' instead of 'u8 *idx' to ide_device_add[_all]() and rename it to ide_host_register[_all](). * Convert host drivers and core code to use struct ide_host. * Remove no longer needed ide_find_port(). * Make ide_find_port_slot() static. * Unexport ide_unregister(). v2: * Add missing 'struct ide_host *host' to macide.c. v3: * Fix build problem in pmac.c (s/ide_alloc_host/ide_host_alloc/) (Noticed by Stephen Rothwell). Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/icside.c | 40 +++++------------ drivers/ide/arm/ide_arm.c | 12 ++--- drivers/ide/arm/palm_bk3710.c | 13 ++---- drivers/ide/arm/rapide.c | 17 +++---- drivers/ide/h8300/ide-h8300.c | 14 ++---- drivers/ide/ide-generic.c | 28 ++++-------- drivers/ide/ide-pnp.c | 17 +++---- drivers/ide/ide-probe.c | 94 ++++++++++++++++++++++++++++----------- drivers/ide/ide.c | 2 - drivers/ide/legacy/buddha.c | 19 +++----- drivers/ide/legacy/falconide.c | 11 ++--- drivers/ide/legacy/gayle.c | 16 +++---- drivers/ide/legacy/ide-4drives.c | 23 +++------- drivers/ide/legacy/ide-cs.c | 46 +++++++++---------- drivers/ide/legacy/ide_platform.c | 23 +++++----- drivers/ide/legacy/macide.c | 12 ++--- drivers/ide/legacy/q40ide.c | 15 +++---- drivers/ide/mips/au1xxx-ide.c | 25 +++++------ drivers/ide/mips/swarm.c | 13 +++--- drivers/ide/pci/cmd640.c | 30 ++++--------- drivers/ide/pci/cs5520.c | 8 ++-- drivers/ide/pci/delkin_cb.c | 19 +++----- drivers/ide/pci/scc_pata.c | 24 +++++----- drivers/ide/pci/sgiioc4.c | 13 +++--- drivers/ide/ppc/pmac.c | 10 ++--- drivers/ide/setup-pci.c | 48 ++++++++------------ include/linux/ide.h | 21 ++++----- 27 files changed, 264 insertions(+), 349 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index 0283d162f7f7..6fa58425466a 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -72,7 +72,7 @@ struct icside_state { void __iomem *ioc_base; unsigned int sel; unsigned int type; - ide_hwif_t *hwif[2]; + struct ide_host *host; }; #define ICS_TYPE_A3IN 0 @@ -442,10 +442,9 @@ static void icside_setup_ports(hw_regs_t *hw, void __iomem *base, static int __init icside_register_v5(struct icside_state *state, struct expansion_card *ec) { - ide_hwif_t *hwif; void __iomem *base; + struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0); if (!base) @@ -465,17 +464,15 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) icside_setup_ports(&hw, base, &icside_cardinfo_v5, ec); - hwif = ide_find_port(); - if (!hwif) + host = ide_host_alloc(NULL, hws); + if (host == NULL) return -ENODEV; - state->hwif[0] = hwif; + state->host = host; ecard_set_drvdata(ec, state); - idx[0] = hwif->index; - - ide_device_add(idx, NULL, hws); + ide_host_register(host, NULL, hws); return 0; } @@ -492,12 +489,11 @@ static const struct ide_port_info icside_v6_port_info __initdata = { static int __init icside_register_v6(struct icside_state *state, struct expansion_card *ec) { - ide_hwif_t *hwif, *mate; void __iomem *ioc_base, *easi_base; + struct ide_host *host; unsigned int sel = 0; int ret; hw_regs_t hw[2], *hws[] = { &hw[0], NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; struct ide_port_info d = icside_v6_port_info; ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0); @@ -537,25 +533,11 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) icside_setup_ports(&hw[0], easi_base, &icside_cardinfo_v6_1, ec); icside_setup_ports(&hw[1], easi_base, &icside_cardinfo_v6_2, ec); - /* - * Find and register the interfaces. - */ - hwif = ide_find_port(); - if (hwif == NULL) + host = ide_host_alloc(&d, hws); + if (host == NULL) return -ENODEV; - hwif->chipset = ide_acorn; - - idx[0] = hwif->index; - - mate = ide_find_port(); - if (mate) { - hws[1] = &hw[1]; - idx[1] = mate->index; - } - - state->hwif[0] = hwif; - state->hwif[1] = mate; + state->host = host; ecard_set_drvdata(ec, state); @@ -565,7 +547,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) d.dma_ops = NULL; } - ide_device_add(idx, &d, hws); + ide_host_register(host, &d, hws); return 0; diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c index e9831bbd988a..9efd7a86db45 100644 --- a/drivers/ide/arm/ide_arm.c +++ b/drivers/ide/arm/ide_arm.c @@ -28,10 +28,9 @@ static int __init ide_arm_init(void) { - ide_hwif_t *hwif; + struct ide_host *host; unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!request_region(base, 8, DRV_NAME)) { printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", @@ -51,12 +50,9 @@ static int __init ide_arm_init(void) hw.irq = IDE_ARM_IRQ; hw.chipset = ide_generic; - hwif = ide_find_port(); - if (hwif) { - idx[0] = hwif->index; - - ide_device_add(idx, NULL, hws); - } + host = ide_host_alloc(NULL, hws); + if (host) + ide_host_register(host, NULL, hws); return 0; } diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index 545563bc7e23..24389a571c37 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -347,11 +347,10 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) { struct clk *clk; struct resource *mem, *irq; - ide_hwif_t *hwif; + struct ide_host *host; unsigned long base, rate; int i; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; clk = clk_get(NULL, "IDECLK"); if (IS_ERR(clk)) @@ -393,15 +392,11 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) hw.irq = irq->start; hw.chipset = ide_palm3710; - hwif = ide_find_port(); - if (hwif == NULL) + host = ide_host_alloc(&palm_bk3710_port_info, hws); + if (host == NULL) goto out; - i = hwif->index; - - idx[0] = i; - - ide_device_add(idx, &palm_bk3710_port_info, hws); + ide_host_register(host, &palm_bk3710_port_info, hws); return 0; out: diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c index a45c2f694949..11f3307385de 100644 --- a/drivers/ide/arm/rapide.c +++ b/drivers/ide/arm/rapide.c @@ -32,11 +32,10 @@ static void rapide_setup_ports(hw_regs_t *hw, void __iomem *base, static int __devinit rapide_probe(struct expansion_card *ec, const struct ecard_id *id) { - ide_hwif_t *hwif; void __iomem *base; + struct ide_host *host; int ret; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; ret = ecard_request_resources(ec); if (ret) @@ -53,17 +52,15 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) hw.chipset = ide_generic; hw.dev = &ec->dev; - hwif = ide_find_port(); - if (hwif == NULL) { + host = ide_host_alloc(&rapide_port_info, hws); + if (host == NULL) { ret = -ENOENT; goto release; } - idx[0] = hwif->index; + ide_host_register(host, &rapide_port_info, hws); - ide_device_add(idx, &rapide_port_info, hws); - - ecard_set_drvdata(ec, hwif); + ecard_set_drvdata(ec, host); goto out; release: @@ -74,11 +71,11 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) static void __devexit rapide_remove(struct expansion_card *ec) { - ide_hwif_t *hwif = ecard_get_drvdata(ec); + struct ide_host *host = ecard_get_drvdata(ec); ecard_set_drvdata(ec, NULL); - ide_unregister(hwif); + ide_host_remove(host); ecard_release_resources(ec); } diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index 84644e150531..15f76690a48c 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -191,10 +191,8 @@ static const struct ide_port_info h8300_port_info = { static int __init h8300_ide_init(void) { - ide_hwif_t *hwif; - int index; + struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; printk(KERN_INFO DRV_NAME ": H8/300 generic IDE interface\n"); @@ -207,15 +205,11 @@ static int __init h8300_ide_init(void) hw_setup(&hw); - hwif = ide_find_port_slot(&h8300_port_info); - if (hwif == NULL) + host = ide_host_alloc(&h8300_port_info, hws); + if (host == NULL) return -ENOENT; - index = hwif->index; - - idx[0] = index; - - ide_device_add(idx, &h8300_port_info, hws); + ide_host_register(host, &h8300_port_info, hws); return 0; diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c index a5c352abff59..e8818362eb46 100644 --- a/drivers/ide/ide-generic.c +++ b/drivers/ide/ide-generic.c @@ -28,27 +28,24 @@ MODULE_PARM_DESC(probe_mask, "probe mask for legacy ISA IDE ports"); static ssize_t store_add(struct class *cls, const char *buf, size_t n) { - ide_hwif_t *hwif; + struct ide_host *host; unsigned int base, ctl; int irq; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[] = { 0xff, 0xff, 0xff, 0xff }; if (sscanf(buf, "%x:%x:%d", &base, &ctl, &irq) != 3) return -EINVAL; - hwif = ide_find_port(); - if (hwif == NULL) - return -ENOENT; - memset(&hw, 0, sizeof(hw)); ide_std_init_ports(&hw, base, ctl); hw.irq = irq; hw.chipset = ide_generic; - idx[0] = hwif->index; + host = ide_host_alloc(NULL, hws); + if (host == NULL) + return -ENOENT; - ide_device_add(idx, NULL, hws); + ide_host_register(host, NULL, hws); return n; }; @@ -89,18 +86,16 @@ static int __init ide_generic_sysfs_init(void) static int __init ide_generic_init(void) { hw_regs_t hw[MAX_HWIFS], *hws[MAX_HWIFS]; - u8 idx[MAX_HWIFS]; + struct ide_host *host; int i; printk(KERN_INFO DRV_NAME ": please use \"probe_mask=0x3f\" module " "parameter for probing all legacy ISA IDE ports\n"); for (i = 0; i < MAX_HWIFS; i++) { - ide_hwif_t *hwif; unsigned long io_addr = ide_default_io_base(i); hws[i] = NULL; - idx[i] = 0xff; if ((probe_mask & (1 << i)) && io_addr) { if (!request_region(io_addr, 8, DRV_NAME)) { @@ -118,23 +113,18 @@ static int __init ide_generic_init(void) continue; } - hwif = ide_find_port(); - if (hwif == NULL) - continue; - - hwif->chipset = ide_generic; - memset(&hw[i], 0, sizeof(hw[i])); ide_std_init_ports(&hw[i], io_addr, io_addr + 0x206); hw[i].irq = ide_default_irq(io_addr); hw[i].chipset = ide_generic; hws[i] = &hw[i]; - idx[i] = i; } } - ide_device_add_all(idx, NULL, hws); + host = ide_host_alloc_all(NULL, hws); + if (host) + ide_host_register(host, NULL, hws); if (ide_generic_sysfs_init()) printk(KERN_ERR DRV_NAME ": failed to create ide_generic " diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c index 89cd5cbe8573..4458ca61897a 100644 --- a/drivers/ide/ide-pnp.c +++ b/drivers/ide/ide-pnp.c @@ -29,7 +29,7 @@ static struct pnp_device_id idepnp_devices[] = { static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) { - ide_hwif_t *hwif; + struct ide_host *host; unsigned long base, ctl; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; @@ -59,14 +59,11 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) hw.irq = pnp_irq(dev, 0); hw.chipset = ide_generic; - hwif = ide_find_port(); - if (hwif) { - u8 index = hwif->index; - u8 idx[4] = { index, 0xff, 0xff, 0xff }; + host = ide_host_alloc(NULL, hws); + if (host) { + pnp_set_drvdata(dev, host); - pnp_set_drvdata(dev, hwif); - - ide_device_add(idx, NULL, hws); + ide_host_register(host, NULL, hws); return 0; } @@ -79,9 +76,9 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) static void idepnp_remove(struct pnp_dev *dev) { - ide_hwif_t *hwif = pnp_get_drvdata(dev); + struct ide_host *host = pnp_get_drvdata(dev); - ide_unregister(hwif); + ide_host_remove(host); release_region(pnp_port_start(dev, 1), 1); release_region(pnp_port_start(dev, 0), 8); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index c588066295db..84a89561ec0f 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1477,7 +1477,7 @@ static int ide_sysfs_register_port(ide_hwif_t *hwif) * Return the new hwif. If we are out of free slots return NULL. */ -ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d) +static ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d) { ide_hwif_t *hwif; int i; @@ -1523,14 +1523,63 @@ out_found: ide_init_port_data(hwif, i); return hwif; } -EXPORT_SYMBOL_GPL(ide_find_port_slot); -int ide_device_add_all(u8 *idx, const struct ide_port_info *d, hw_regs_t **hws) +struct ide_host *ide_host_alloc_all(const struct ide_port_info *d, + hw_regs_t **hws) +{ + struct ide_host *host; + int i; + + host = kzalloc(sizeof(*host), GFP_KERNEL); + if (host == NULL) + return NULL; + + for (i = 0; i < MAX_HWIFS; i++) { + ide_hwif_t *hwif; + + if (hws[i] == NULL) + continue; + + hwif = ide_find_port_slot(d); + if (hwif) { + hwif->chipset = hws[i]->chipset; + + host->ports[i] = hwif; + host->n_ports++; + } + } + + if (host->n_ports == 0) { + kfree(host); + return NULL; + } + + return host; +} +EXPORT_SYMBOL_GPL(ide_host_alloc_all); + +struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws) +{ + hw_regs_t *hws_all[MAX_HWIFS]; + int i; + + for (i = 0; i < MAX_HWIFS; i++) + hws_all[i] = (i < 4) ? hws[i] : NULL; + + return ide_host_alloc_all(d, hws_all); +} +EXPORT_SYMBOL_GPL(ide_host_alloc); + +int ide_host_register(struct ide_host *host, const struct ide_port_info *d, + hw_regs_t **hws) { ide_hwif_t *hwif, *mate = NULL; + u8 idx[MAX_HWIFS]; int i, rc = 0; for (i = 0; i < MAX_HWIFS; i++) { + idx[i] = host->ports[i] ? host->ports[i]->index : 0xff; + if (idx[i] == 0xff) { mate = NULL; continue; @@ -1626,22 +1675,20 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d, hw_regs_t **hws) return rc; } -EXPORT_SYMBOL_GPL(ide_device_add_all); +EXPORT_SYMBOL_GPL(ide_host_register); -int ide_device_add(u8 *idx, const struct ide_port_info *d, hw_regs_t **hws) +void ide_host_remove(struct ide_host *host) { - hw_regs_t *hws_all[MAX_HWIFS]; - u8 idx_all[MAX_HWIFS]; int i; for (i = 0; i < MAX_HWIFS; i++) { - hws_all[i] = (i < 4) ? hws[i] : NULL; - idx_all[i] = (i < 4) ? idx[i] : 0xff; + if (host->ports[i]) + ide_unregister(host->ports[i]); } - return ide_device_add_all(idx_all, d, hws_all); + kfree(host); } -EXPORT_SYMBOL_GPL(ide_device_add); +EXPORT_SYMBOL_GPL(ide_host_remove); void ide_port_scan(ide_hwif_t *hwif) { @@ -1662,11 +1709,10 @@ void ide_port_scan(ide_hwif_t *hwif) } EXPORT_SYMBOL_GPL(ide_port_scan); -static void ide_legacy_init_one(u8 *idx, hw_regs_t **hws, hw_regs_t *hw, +static void ide_legacy_init_one(hw_regs_t **hws, hw_regs_t *hw, u8 port_no, const struct ide_port_info *d, unsigned long config) { - ide_hwif_t *hwif; unsigned long base, ctl; int irq; @@ -1698,31 +1744,29 @@ static void ide_legacy_init_one(u8 *idx, hw_regs_t **hws, hw_regs_t *hw, hw->chipset = d->chipset; hw->config = config; - hwif = ide_find_port_slot(d); - if (hwif) { - hwif->chipset = hw->chipset; - - hws[port_no] = hw; - idx[port_no] = hwif->index; - } + hws[port_no] = hw; } int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) { - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + struct ide_host *host; hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL }; memset(&hw, 0, sizeof(hw)); if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0) - ide_legacy_init_one(idx, hws, &hw[0], 0, d, config); - ide_legacy_init_one(idx, hws, &hw[1], 1, d, config); + ide_legacy_init_one(hws, &hw[0], 0, d, config); + ide_legacy_init_one(hws, &hw[1], 1, d, config); - if (idx[0] == 0xff && idx[1] == 0xff && + if (hws[0] == NULL && hws[1] == NULL && (d->host_flags & IDE_HFLAG_SINGLE)) return -ENOENT; - ide_device_add(idx, d, hws); + host = ide_host_alloc(d, hws); + if (host == NULL) + return -ENOMEM; + + ide_host_register(host, d, hws); return 0; } diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 132b504168e9..7e9575d1aee3 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -276,8 +276,6 @@ void ide_unregister(ide_hwif_t *hwif) mutex_unlock(&ide_cfg_mtx); } -EXPORT_SYMBOL(ide_unregister); - void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) { memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports)); diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c index c61bc6a1db36..2625667fab4c 100644 --- a/drivers/ide/legacy/buddha.c +++ b/drivers/ide/legacy/buddha.c @@ -150,18 +150,15 @@ static void __init buddha_setup_ports(hw_regs_t *hw, unsigned long base, static int __init buddha_init(void) { - ide_hwif_t *hwif; - int i; - struct zorro_dev *z = NULL; + struct ide_host *host; u_long buddha_board = 0; BuddhaType type; - int buddha_num_hwifs; + int buddha_num_hwifs, i; while ((z = zorro_find_device(ZORRO_WILDCARD, z))) { unsigned long board; hw_regs_t hw[MAX_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_BUDDHA) { buddha_num_hwifs = BUDDHA_NUM_HWIFS; @@ -226,16 +223,12 @@ fail_base2: buddha_setup_ports(&hw[i], base, ctl, irq_port, ack_intr); - hwif = ide_find_port(); - if (hwif) { - hwif->chipset = ide_generic; - - hws[i] = &hw[i]; - idx[i] = hwif->index; - } + hws[i] = &hw[i]; } - ide_device_add(idx, NULL, hws); + host = ide_host_alloc(NULL, hws); + if (host) + ide_host_register(host, NULL, hws); } return 0; diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c index 3e2c6125f031..4eb5c3f9fecc 100644 --- a/drivers/ide/legacy/falconide.c +++ b/drivers/ide/legacy/falconide.c @@ -112,7 +112,7 @@ static void __init falconide_setup_ports(hw_regs_t *hw) static int __init falconide_init(void) { - ide_hwif_t *hwif; + struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE)) @@ -127,13 +127,10 @@ static int __init falconide_init(void) falconide_setup_ports(&hw); - hwif = ide_find_port(); - if (hwif) { - u8 index = hwif->index; - u8 idx[4] = { index, 0xff, 0xff, 0xff }; - + host = ide_host_alloc(&falconide_port_info, hws); + if (host) { ide_get_lock(NULL, NULL); - ide_device_add(idx, &falconide_port_info, hws); + ide_host_register(host, &falconide_port_info, hws); ide_release_lock(); } diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c index 7baeefa870fa..13d22bded6b4 100644 --- a/drivers/ide/legacy/gayle.c +++ b/drivers/ide/legacy/gayle.c @@ -127,9 +127,9 @@ static int __init gayle_init(void) unsigned long phys_base, res_start, res_n; unsigned long base, ctrlport, irqport; ide_ack_intr_t *ack_intr; + struct ide_host *host; int a4000, i; hw_regs_t hw[GAYLE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!MACH_IS_AMIGA) return -ENODEV; @@ -172,23 +172,17 @@ found: return -EBUSY; for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) { - ide_hwif_t *hwif; - base = (unsigned long)ZTWO_VADDR(phys_base + i * GAYLE_NEXT_PORT); ctrlport = GAYLE_HAS_CONTROL_REG ? (base + GAYLE_CONTROL) : 0; gayle_setup_ports(&hw[i], base, ctrlport, irqport, ack_intr); - hwif = ide_find_port(); - if (hwif) { - hwif->chipset = ide_generic; - - hws[i] = &hw[i]; - idx[i] = hwif->index; - } + hws[i] = &hw[i]; } - ide_device_add(idx, NULL, hws); + host = ide_host_alloc(NULL, hws); + if (host) + ide_host_register(host, NULL, hws); return 0; } diff --git a/drivers/ide/legacy/ide-4drives.c b/drivers/ide/legacy/ide-4drives.c index 6310dc50e3c5..5935153ef2ad 100644 --- a/drivers/ide/legacy/ide-4drives.c +++ b/drivers/ide/legacy/ide-4drives.c @@ -28,10 +28,9 @@ static const struct ide_port_info ide_4drives_port_info = { static int __init ide_4drives_init(void) { - ide_hwif_t *hwif, *mate; + struct ide_host *host; unsigned long base = 0x1f0, ctl = 0x3f6; - hw_regs_t hw, *hws[] = { NULL, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + hw_regs_t hw, *hws[] = { &hw, &hw, NULL, NULL }; if (probe_4drives == 0) return -ENODEV; @@ -55,21 +54,9 @@ static int __init ide_4drives_init(void) hw.irq = 14; hw.chipset = ide_4drives; - hwif = ide_find_port(); - if (hwif) { - hwif->chipset = ide_4drives; - - hws[0] = &hw; - idx[0] = hwif->index; - } - - mate = ide_find_port(); - if (mate) { - hws[1] = &hw; - idx[1] = mate->index; - } - - ide_device_add(idx, &ide_4drives_port_info, hws); + host = ide_host_alloc(&ide_4drives_port_info, hws); + if (host) + ide_host_register(host, &ide_4drives_port_info, hws); return 0; } diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c index f93d5454ebf8..1a4b9e6887fa 100644 --- a/drivers/ide/legacy/ide-cs.c +++ b/drivers/ide/legacy/ide-cs.c @@ -74,7 +74,7 @@ INT_MODULE_PARM(pc_debug, 0); typedef struct ide_info_t { struct pcmcia_device *p_dev; - ide_hwif_t *hwif; + struct ide_host *host; int ndev; dev_node_t node; } ide_info_t; @@ -132,7 +132,7 @@ static int ide_probe(struct pcmcia_device *link) static void ide_detach(struct pcmcia_device *link) { ide_info_t *info = link->priv; - ide_hwif_t *hwif = info->hwif; + ide_hwif_t *hwif = info->host->ports[0]; unsigned long data_addr, ctl_addr; DEBUG(0, "ide_detach(0x%p)\n", link); @@ -157,13 +157,13 @@ static const struct ide_port_info idecs_port_info = { .host_flags = IDE_HFLAG_NO_DMA, }; -static ide_hwif_t *idecs_register(unsigned long io, unsigned long ctl, +static struct ide_host *idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, struct pcmcia_device *handle) { + struct ide_host *host; ide_hwif_t *hwif; int i; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!request_region(io, 8, DRV_NAME)) { printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", @@ -184,26 +184,26 @@ static ide_hwif_t *idecs_register(unsigned long io, unsigned long ctl, hw.chipset = ide_pci; hw.dev = &handle->dev; - hwif = ide_find_port(); - if (hwif == NULL) + host = ide_host_alloc(&idecs_port_info, hws); + if (host == NULL) goto out_release; - idx[0] = hwif->index; + ide_host_register(host, &idecs_port_info, hws); - ide_device_add(idx, &idecs_port_info, hws); + hwif = host->ports[0]; if (hwif->present) - return hwif; + return host; /* retry registration in case device is still spinning up */ for (i = 0; i < 10; i++) { msleep(100); ide_port_scan(hwif); if (hwif->present) - return hwif; + return host; } - return hwif; + return host; out_release: release_region(ctl, 1); @@ -235,7 +235,7 @@ static int ide_config(struct pcmcia_device *link) cistpl_cftable_entry_t *cfg; int pass, last_ret = 0, last_fn = 0, is_kme = 0; unsigned long io_base, ctl_base; - ide_hwif_t *hwif; + struct ide_host *host; DEBUG(0, "ide_config(0x%p)\n", link); @@ -330,21 +330,21 @@ static int ide_config(struct pcmcia_device *link) if (is_kme) outb(0x81, ctl_base+1); - hwif = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link); - if (hwif == NULL && link->io.NumPorts1 == 0x20) { + host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link); + if (host == NULL && link->io.NumPorts1 == 0x20) { outb(0x02, ctl_base + 0x10); - hwif = idecs_register(io_base + 0x10, ctl_base + 0x10, + host = idecs_register(io_base + 0x10, ctl_base + 0x10, link->irq.AssignedIRQ, link); } - if (hwif == NULL) + if (host == NULL) goto failed; info->ndev = 1; - sprintf(info->node.dev_name, "hd%c", 'a' + hwif->index * 2); - info->node.major = hwif->major; + sprintf(info->node.dev_name, "hd%c", 'a' + host->ports[0]->index * 2); + info->node.major = host->ports[0]->major; info->node.minor = 0; - info->hwif = hwif; + info->host = host; link->dev_node = &info->node; printk(KERN_INFO "ide-cs: %s: Vpp = %d.%d\n", info->node.dev_name, link->conf.Vpp / 10, link->conf.Vpp % 10); @@ -375,15 +375,15 @@ failed: static void ide_release(struct pcmcia_device *link) { ide_info_t *info = link->priv; - ide_hwif_t *hwif = info->hwif; + struct ide_host *host = info->host; DEBUG(0, "ide_release(0x%p)\n", link); - if (info->ndev) { + if (info->ndev) /* FIXME: if this fails we need to queue the cleanup somehow -- need to investigate the required PCMCIA magic */ - ide_unregister(hwif); - } + ide_host_remove(host); + info->ndev = 0; pcmcia_disable_device(link); diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c index 3d71e336a221..58a942c6a131 100644 --- a/drivers/ide/legacy/ide_platform.c +++ b/drivers/ide/legacy/ide_platform.c @@ -52,11 +52,10 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) { struct resource *res_base, *res_alt, *res_irq; void __iomem *base, *alt_base; - ide_hwif_t *hwif; struct pata_platform_info *pdata; + struct ide_host *host; int ret = 0, mmio = 0; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; struct ide_port_info d = platform_ide_port_info; pdata = pdev->dev.platform_data; @@ -93,12 +92,6 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) res_alt->start, res_alt->end - res_alt->start + 1); } - hwif = ide_find_port(); - if (!hwif) { - ret = -ENODEV; - goto out; - } - memset(&hw, 0, sizeof(hw)); plat_ide_setup_ports(&hw, base, alt_base, pdata, res_irq->start); hw.dev = &pdev->dev; @@ -106,11 +99,15 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) if (mmio) d.host_flags |= IDE_HFLAG_MMIO; - idx[0] = hwif->index; + host = ide_host_alloc(&d, hws); + if (host == NULL) { + ret = -ENODEV; + goto out; + } - ide_device_add(idx, &d, hws); + ide_host_register(host, &d, hws); - platform_set_drvdata(pdev, hwif); + platform_set_drvdata(pdev, host); return 0; @@ -120,9 +117,9 @@ out: static int __devexit plat_ide_remove(struct platform_device *pdev) { - ide_hwif_t *hwif = pdev->dev.driver_data; + struct ide_host *host = pdev->dev.driver_data; - ide_unregister(hwif); + ide_host_remove(host); return 0; } diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c index d839df2239fc..b49cf8c2b91a 100644 --- a/drivers/ide/legacy/macide.c +++ b/drivers/ide/legacy/macide.c @@ -91,8 +91,8 @@ static const char *mac_ide_name[] = static int __init macide_init(void) { - ide_hwif_t *hwif; ide_ack_intr_t *ack_intr; + struct ide_host *host; unsigned long base; int irq; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; @@ -125,13 +125,9 @@ static int __init macide_init(void) macide_setup_ports(&hw, base, irq, ack_intr); - hwif = ide_find_port(); - if (hwif) { - u8 index = hwif->index; - u8 idx[4] = { index, 0xff, 0xff, 0xff }; - - ide_device_add(idx, NULL, hws); - } + host = ide_host_alloc(NULL, hws); + if (host) + ide_host_register(host, NULL, hws); return 0; } diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c index 2dc306f852a6..8fb4438a6afd 100644 --- a/drivers/ide/legacy/q40ide.c +++ b/drivers/ide/legacy/q40ide.c @@ -131,10 +131,9 @@ static const char *q40_ide_names[Q40IDE_NUM_HWIFS]={ static int __init q40ide_init(void) { + struct ide_host *host; int i; - ide_hwif_t *hwif; hw_regs_t hw[Q40IDE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!MACH_IS_Q40) return -ENODEV; @@ -158,16 +157,12 @@ static int __init q40ide_init(void) q40_ide_setup_ports(&hw[i], pcide_bases[i], NULL, q40ide_default_irq(pcide_bases[i])); - hwif = ide_find_port(); - if (hwif) { - hwif->chipset = ide_generic; - - hws[i] = &hw[i]; - idx[i] = hwif->index; - } + hws[i] = &hw[i]; } - ide_device_add(idx, &q40ide_port_info, hws); + host = ide_host_alloc(&q40ide_port_info, hws); + if (host) + ide_host_register(host, &q40ide_port_info, hws); return 0; } diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index ed1c9a134079..903c628bddd0 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -563,11 +563,10 @@ static int au_ide_probe(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); _auide_hwif *ahwif = &auide_hwif; - ide_hwif_t *hwif; struct resource *res; + struct ide_host *host; int ret = 0; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) char *mode = "MWDMA2"; @@ -604,25 +603,23 @@ static int au_ide_probe(struct device *dev) goto out; } - hwif = ide_find_port(); - if (hwif == NULL) { - ret = -ENOENT; - goto out; - } - memset(&hw, 0, sizeof(hw)); auide_setup_ports(&hw, ahwif); hw.irq = ahwif->irq; hw.dev = dev; hw.chipset = ide_au1xxx; - auide_hwif.hwif = hwif; + host = ide_host_alloc(&au1xxx_port_info, hws); + if (host == NULL) { + ret = -ENOENT; + goto out; + } - idx[0] = hwif->index; + ide_host_register(host, &au1xxx_port_info, hws); - ide_device_add(idx, &au1xxx_port_info, hws); + auide_hwif.hwif = host->ports[0]; - dev_set_drvdata(dev, hwif); + dev_set_drvdata(dev, host); printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode ); @@ -634,10 +631,10 @@ static int au_ide_remove(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct resource *res; - ide_hwif_t *hwif = dev_get_drvdata(dev); + struct ide_host *host = dev_get_drvdata(dev); _auide_hwif *ahwif = &auide_hwif; - ide_unregister(hwif); + ide_host_remove(host); iounmap((void *)ahwif->regbase); diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c index c1ffb83a2de7..b12d9d224831 100644 --- a/drivers/ide/mips/swarm.c +++ b/drivers/ide/mips/swarm.c @@ -72,12 +72,11 @@ static const struct ide_port_info swarm_port_info = { */ static int __devinit swarm_ide_probe(struct device *dev) { - ide_hwif_t *hwif; u8 __iomem *base; + struct ide_host *host; phys_t offset, size; int i; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[] = { 0xff, 0xff, 0xff, 0xff }; if (!SIBYTE_HAVE_IDE) return -ENODEV; @@ -116,15 +115,13 @@ static int __devinit swarm_ide_probe(struct device *dev) hw.irq = K_INT_GB_IDE; hw.chipset = ide_generic; - hwif = ide_find_port_slot(&swarm_port_info); - if (hwif == NULL) + host = ide_host_alloc(&swarm_port_info, hws); + if (host == NULL) goto err; - idx[0] = hwif->index; + ide_host_register(host, &swarm_port_info, hws); - ide_device_add(idx, &swarm_port_info, hws); - - dev_set_drvdata(dev, hwif); + dev_set_drvdata(dev, host); return 0; err: diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index ccde1e444e13..013697b8cef4 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -180,11 +180,6 @@ static u8 recovery_counts[4] = {16, 16, 16, 16}; /* Recovery count (encoded) */ static DEFINE_SPINLOCK(cmd640_lock); -/* - * These are initialized to point at the devices we control - */ -static ide_hwif_t *cmd_hwif0, *cmd_hwif1; - /* * Interface to access cmd640x registers */ @@ -714,11 +709,11 @@ static int cmd640x_init_one(unsigned long base, unsigned long ctl) */ static int __init cmd640x_init(void) { + struct ide_host *host; int second_port_cmd640 = 0, rc; const char *bus_type, *port2; u8 b, cfr; hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (cmd640_vlb && probe_for_cmd640_vlb()) { bus_type = "VLB"; @@ -781,17 +776,10 @@ static int __init cmd640x_init(void) printk(KERN_INFO "cmd640: buggy cmd640%c interface on %s, config=0x%02x" "\n", 'a' + cmd640_chip_version - 1, bus_type, cfr); - cmd_hwif0 = ide_find_port(); - /* * Initialize data for primary port */ - if (cmd_hwif0) { - cmd_hwif0->chipset = ide_cmd640; - - hws[0] = &hw[0]; - idx[0] = cmd_hwif0->index; - } + hws[0] = &hw[0]; /* * Ensure compatibility by always using the slowest timings @@ -831,13 +819,9 @@ static int __init cmd640x_init(void) /* * Initialize data for secondary cmd640 port, if enabled */ - if (second_port_cmd640) { - cmd_hwif1 = ide_find_port(); - if (cmd_hwif1) { - hws[1] = &hw[1]; - idx[1] = cmd_hwif1->index; - } - } + if (second_port_cmd640) + hws[1] = &hw[1]; + printk(KERN_INFO "cmd640: %sserialized, secondary interface %s\n", second_port_cmd640 ? "" : "not ", port2); @@ -845,7 +829,9 @@ static int __init cmd640x_init(void) cmd640_dump_regs(); #endif - ide_device_add(idx, &cmd640_port_info, hws); + host = ide_host_alloc(&cmd640_port_info, hws); + if (host) + ide_host_register(host, &cmd640_port_info, hws); return 1; } diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index e8e7df1915bf..b8ec06d22c61 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -114,9 +114,9 @@ static const struct ide_port_info cyrix_chipsets[] __devinitdata = { static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id) { + struct ide_host *host; const struct ide_port_info *d = &cyrix_chipsets[id->driver_data]; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; ide_setup_pci_noise(dev, d); @@ -138,9 +138,11 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic * do all the device setup for us */ - ide_pci_setup_ports(dev, d, 14, &idx[0], &hw[0], &hws[0]); + ide_pci_setup_ports(dev, d, 14, &hw[0], &hws[0]); - ide_device_add(idx, d, hws); + host = ide_host_alloc(d, hws); + if (host) + ide_host_register(host, d, hws); return 0; } diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c index 33fe15db408a..5eb9d9325184 100644 --- a/drivers/ide/pci/delkin_cb.c +++ b/drivers/ide/pci/delkin_cb.c @@ -56,11 +56,10 @@ static const struct ide_port_info delkin_cb_port_info = { static int __devinit delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) { + struct ide_host *host; unsigned long base; - ide_hwif_t *hwif = NULL; int i, rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; rc = pci_enable_device(dev); if (rc) { @@ -87,17 +86,13 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) hw.dev = &dev->dev; hw.chipset = ide_pci; /* this enables IRQ sharing */ - hwif = ide_find_port(); - if (hwif == NULL) + host = ide_host_alloc(&delkin_cb_port_info, hws); + if (host == NULL) goto out_disable; - i = hwif->index; + ide_host_register(host, &delkin_cb_port_info, hws); - idx[0] = i; - - ide_device_add(idx, &delkin_cb_port_info, hws); - - pci_set_drvdata(dev, hwif); + pci_set_drvdata(dev, host); return 0; @@ -110,9 +105,9 @@ out_disable: static void delkin_cb_remove (struct pci_dev *dev) { - ide_hwif_t *hwif = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); - ide_unregister(hwif); + ide_host_remove(host); pci_release_regions(dev); pci_disable_device(dev); diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 5b1a0e950dfd..d5e2ba6bacd6 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -65,7 +65,7 @@ static struct scc_ports { unsigned long ctl, dma; - ide_hwif_t *hwif; /* for removing port from system */ + struct ide_host *host; /* for removing port from system */ } scc_ports[MAX_HWIFS]; /* PIO transfer mode table */ @@ -586,15 +586,10 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) { struct scc_ports *ports = pci_get_drvdata(dev); - ide_hwif_t *hwif = NULL; + struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; int i; - hwif = ide_find_port_slot(d); - if (hwif == NULL) - return -ENOMEM; - memset(&hw, 0, sizeof(hw)); for (i = 0; i <= 8; i++) hw.io_ports_array[i] = ports->dma + 0x20 + i * 4; @@ -602,9 +597,13 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev, hw.dev = &dev->dev; hw.chipset = ide_pci; - idx[0] = hwif->index; + host = ide_host_alloc(d, hws); + if (host == NULL) + return -ENOMEM; - ide_device_add(idx, d, hws); + ide_host_register(host, d, hws); + + ports->host = host; return 0; } @@ -848,8 +847,6 @@ static void __devinit init_hwif_scc(ide_hwif_t *hwif) { struct scc_ports *ports = ide_get_hwifdata(hwif); - ports->hwif = hwif; - /* PTERADD */ out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma); @@ -932,7 +929,8 @@ static int __devinit scc_init_one(struct pci_dev *dev, const struct pci_device_i static void __devexit scc_remove(struct pci_dev *dev) { struct scc_ports *ports = pci_get_drvdata(dev); - ide_hwif_t *hwif = ports->hwif; + struct ide_host *host = ports->host; + ide_hwif_t *hwif = host->ports[0]; if (hwif->dmatable_cpu) { pci_free_consistent(dev, PRD_ENTRIES * PRD_BYTES, @@ -940,7 +938,7 @@ static void __devexit scc_remove(struct pci_dev *dev) hwif->dmatable_cpu = NULL; } - ide_unregister(hwif); + ide_host_remove(host); iounmap((void*)ports->dma); iounmap((void*)ports->ctl); diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 5598bd5936d9..440f43a86ad3 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -600,9 +600,8 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) unsigned long cmd_base, irqport; unsigned long bar0, cmd_phys_base, ctl; void __iomem *virt_base; - ide_hwif_t *hwif; + struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; struct ide_port_info d = sgiioc4_port_info; /* Get the CmdBlk and CtrlBlk Base Registers */ @@ -635,16 +634,14 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) hw.chipset = ide_pci; hw.dev = &dev->dev; - hwif = ide_find_port_slot(&d); - if (hwif == NULL) - goto err; - /* Initializing chipset IRQ Registers */ writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4)); - idx[0] = hwif->index; + host = ide_host_alloc(&d, hws); + if (host == NULL) + goto err; - if (ide_device_add(idx, &d, hws)) + if (ide_host_register(host, &d, hws)) return -EIO; return 0; diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index ee557d10a764..ecd2f28da1ba 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1039,9 +1039,9 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) { struct device_node *np = pmif->node; const int *bidp; + struct ide_host *host; ide_hwif_t *hwif; hw_regs_t *hws[] = { hw, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; struct ide_port_info d = pmac_port_info; pmif->broken_dma = pmif->broken_dma_warn = 0; @@ -1118,13 +1118,13 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) pmif->mdev ? "macio" : "PCI", pmif->aapl_bus_id, pmif->mediabay ? " (mediabay)" : "", hw->irq); - hwif = ide_find_port_slot(&d); - if (hwif == NULL) + host = ide_host_alloc(&d, hws); + if (host == NULL) return -ENOENT; - idx[0] = hwif->index; + ide_host_register(host, &d, hws); - ide_device_add(idx, &d, hws); + hwif = host->ports[0]; return 0; } diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 804c3ef245f9..1c0c5570dec8 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -289,7 +289,7 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info * } /** - * ide_hwif_configure - configure an IDE interface + * ide_hw_configure - configure a hw_regs_t instance * @dev: PCI device holding interface * @d: IDE port info * @port: port number @@ -300,23 +300,20 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info * * is done per interface port rather than per PCI device. There may be * more than one port per device. * - * Returns the new hardware interface structure, or NULL on a failure + * Returns zero on success or an error code. */ -static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, - const struct ide_port_info *d, - unsigned int port, int irq, - hw_regs_t *hw) +static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d, + unsigned int port, int irq, hw_regs_t *hw) { unsigned long ctl = 0, base = 0; - ide_hwif_t *hwif; if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { if (ide_pci_check_iomem(dev, d, 2 * port) || ide_pci_check_iomem(dev, d, 2 * port + 1)) { printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported " "as MEM for port %d!\n", d->name, port); - return NULL; + return -EINVAL; } ctl = pci_resource_start(dev, 2*port+1); @@ -330,7 +327,7 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, if (!base || !ctl) { printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n", d->name, port); - return NULL; + return -EINVAL; } memset(hw, 0, sizeof(*hw)); @@ -339,13 +336,7 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, hw->chipset = d->chipset ? d->chipset : ide_pci; ide_std_init_ports(hw, base, ctl | 2); - hwif = ide_find_port_slot(d); - if (hwif == NULL) - return NULL; - - hwif->chipset = hw->chipset; - - return hwif; + return 0; } #ifdef CONFIG_BLK_DEV_IDEDMA_PCI @@ -443,7 +434,6 @@ out: * @dev: PCI device * @d: IDE port info * @pciirq: IRQ line - * @idx: ATA index table to update * @hw: hw_regs_t instances corresponding to this PCI IDE device * @hws: hw_regs_t pointers table to update * @@ -457,10 +447,9 @@ out: */ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, - int pciirq, u8 *idx, hw_regs_t *hw, hw_regs_t **hws) + int pciirq, hw_regs_t *hw, hw_regs_t **hws) { int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port; - ide_hwif_t *hwif; u8 tmp; /* @@ -476,12 +465,10 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, continue; /* port not enabled */ } - hwif = ide_hwif_configure(dev, d, port, pciirq, hw + port); - if (hwif == NULL) + if (ide_hw_configure(dev, d, port, pciirq, hw + port)) continue; *(hws + port) = hw + port; - *(idx + port) = hwif->index; } } EXPORT_SYMBOL_GPL(ide_pci_setup_ports); @@ -554,7 +541,7 @@ out: int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) { - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + struct ide_host *host; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; int ret; @@ -562,9 +549,11 @@ int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) if (ret >= 0) { /* FIXME: silent failure can happen */ - ide_pci_setup_ports(dev, d, ret, &idx[0], &hw[0], &hws[0]); + ide_pci_setup_ports(dev, d, ret, &hw[0], &hws[0]); - ide_device_add(idx, d, hws); + host = ide_host_alloc(d, hws); + if (host) + ide_host_register(host, d, hws); } return ret; @@ -575,9 +564,9 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, const struct ide_port_info *d) { struct pci_dev *pdev[] = { dev1, dev2 }; + struct ide_host *host; int ret, i; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; for (i = 0; i < 2; i++) { ret = do_ide_setup_pci_device(pdev[i], d, !i); @@ -590,11 +579,12 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, goto out; /* FIXME: silent failure can happen */ - ide_pci_setup_ports(pdev[i], d, ret, &idx[i*2], &hw[i*2], - &hws[i*2]); + ide_pci_setup_ports(pdev[i], d, ret, &hw[i*2], &hws[i*2]); } - ide_device_add(idx, d, hws); + host = ide_host_alloc(d, hws); + if (host) + ide_host_register(host, d, hws); out: return ret; } diff --git a/include/linux/ide.h b/include/linux/ide.h index 1286a2275efb..a41ae57fafc5 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -558,6 +558,11 @@ typedef struct hwif_s { #endif } ____cacheline_internodealigned_in_smp ide_hwif_t; +struct ide_host { + ide_hwif_t *ports[MAX_HWIFS]; + unsigned int n_ports; +}; + /* * internal ide interrupt handler type */ @@ -813,13 +818,6 @@ int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsig extern int ide_vlb_clk; extern int ide_pci_clk; -ide_hwif_t *ide_find_port_slot(const struct ide_port_info *); - -static inline ide_hwif_t *ide_find_port(void) -{ - return ide_find_port_slot(NULL); -} - extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs); int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, int uptodate, int nr_sectors); @@ -1024,7 +1022,7 @@ extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *o #endif void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, - u8 *, hw_regs_t *, hw_regs_t **); + hw_regs_t *, hw_regs_t **); void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); #ifdef CONFIG_BLK_DEV_IDEDMA_PCI @@ -1236,8 +1234,11 @@ void ide_undecoded_slave(ide_drive_t *); void ide_port_apply_params(ide_hwif_t *); -int ide_device_add_all(u8 *, const struct ide_port_info *, hw_regs_t **); -int ide_device_add(u8 *, const struct ide_port_info *, hw_regs_t **); +struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **); +struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); +int ide_host_register(struct ide_host *, const struct ide_port_info *, + hw_regs_t **); +void ide_host_remove(struct ide_host *); int ide_legacy_device_add(const struct ide_port_info *, unsigned long); void ide_port_unregister_devices(ide_hwif_t *); void ide_port_scan(ide_hwif_t *); -- cgit v1.2.3 From 6f904d015262dfa43eb1cecc00b0998b4c3543f2 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:57 +0200 Subject: ide: add ide_host_add() helper Add ide_host_add() helper which does ide_host_alloc()+ide_host_register(), then convert ide_setup_pci_device[s](), ide_legacy_device_add() and some host drivers to use it. While at it: * Fix ide_setup_pci_device[s](), ide_arm.c, gayle.c, ide-4drives.c, macide.c, q40ide.c, cmd640.c and cs5520.c to return correct error value. * -ENOENT -> -ENOMEM in rapide.c, ide-h8300.c, ide-generic.c, au1xxx-ide.c and pmac.c * -ENODEV -> -ENOMEM in palm_bk3710.c, ide_platform.c and delkin_cb.c * -1 -> -ENOMEM in ide-pnp.c Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/ide_arm.c | 7 +------ drivers/ide/arm/palm_bk3710.c | 10 ++++------ drivers/ide/arm/rapide.c | 8 ++------ drivers/ide/h8300/ide-h8300.c | 9 +-------- drivers/ide/ide-generic.c | 11 ++++------- drivers/ide/ide-pnp.c | 16 ++++++++-------- drivers/ide/ide-probe.c | 27 +++++++++++++++++++-------- drivers/ide/legacy/buddha.c | 5 +---- drivers/ide/legacy/gayle.c | 7 +------ drivers/ide/legacy/ide-4drives.c | 7 +------ drivers/ide/legacy/ide-cs.c | 8 +++----- drivers/ide/legacy/ide_platform.c | 8 ++------ drivers/ide/legacy/macide.c | 7 +------ drivers/ide/legacy/q40ide.c | 7 +------ drivers/ide/mips/au1xxx-ide.c | 8 ++------ drivers/ide/mips/swarm.c | 10 ++++------ drivers/ide/pci/cmd640.c | 7 +------ drivers/ide/pci/cs5520.c | 7 +------ drivers/ide/pci/delkin_cb.c | 8 +++----- drivers/ide/pci/scc_pata.c | 10 ++++------ drivers/ide/ppc/pmac.c | 9 ++++----- drivers/ide/setup-pci.c | 10 ++-------- include/linux/ide.h | 2 ++ 23 files changed, 72 insertions(+), 136 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c index 9efd7a86db45..176532ffae0e 100644 --- a/drivers/ide/arm/ide_arm.c +++ b/drivers/ide/arm/ide_arm.c @@ -28,7 +28,6 @@ static int __init ide_arm_init(void) { - struct ide_host *host; unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; @@ -50,11 +49,7 @@ static int __init ide_arm_init(void) hw.irq = IDE_ARM_IRQ; hw.chipset = ide_generic; - host = ide_host_alloc(NULL, hws); - if (host) - ide_host_register(host, NULL, hws); - - return 0; + return ide_host_add(NULL, hws, NULL); } module_init(ide_arm_init); diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index 24389a571c37..65bb4b8fd570 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -349,7 +349,7 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) struct resource *mem, *irq; struct ide_host *host; unsigned long base, rate; - int i; + int i, rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; clk = clk_get(NULL, "IDECLK"); @@ -392,16 +392,14 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) hw.irq = irq->start; hw.chipset = ide_palm3710; - host = ide_host_alloc(&palm_bk3710_port_info, hws); - if (host == NULL) + rc = ide_host_add(&palm_bk3710_port_info, hws, NULL); + if (rc) goto out; - ide_host_register(host, &palm_bk3710_port_info, hws); - return 0; out: printk(KERN_WARNING "Palm Chip BK3710 IDE Register Fail\n"); - return -ENODEV; + return rc; } /* work with hotplug and coldplug */ diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c index 11f3307385de..2bdd8b734afb 100644 --- a/drivers/ide/arm/rapide.c +++ b/drivers/ide/arm/rapide.c @@ -52,13 +52,9 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) hw.chipset = ide_generic; hw.dev = &ec->dev; - host = ide_host_alloc(&rapide_port_info, hws); - if (host == NULL) { - ret = -ENOENT; + ret = ide_host_add(&rapide_port_info, hws, &host); + if (ret) goto release; - } - - ide_host_register(host, &rapide_port_info, hws); ecard_set_drvdata(ec, host); goto out; diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index 15f76690a48c..bde7a585f198 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -191,7 +191,6 @@ static const struct ide_port_info h8300_port_info = { static int __init h8300_ide_init(void) { - struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; printk(KERN_INFO DRV_NAME ": H8/300 generic IDE interface\n"); @@ -205,13 +204,7 @@ static int __init h8300_ide_init(void) hw_setup(&hw); - host = ide_host_alloc(&h8300_port_info, hws); - if (host == NULL) - return -ENOENT; - - ide_host_register(host, &h8300_port_info, hws); - - return 0; + return ide_host_add(&h8300_port_info, hws, NULL); out_busy: printk(KERN_ERR "ide-h8300: IDE I/F resource already used.\n"); diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c index e8818362eb46..a7082c28d06f 100644 --- a/drivers/ide/ide-generic.c +++ b/drivers/ide/ide-generic.c @@ -28,9 +28,8 @@ MODULE_PARM_DESC(probe_mask, "probe mask for legacy ISA IDE ports"); static ssize_t store_add(struct class *cls, const char *buf, size_t n) { - struct ide_host *host; unsigned int base, ctl; - int irq; + int irq, rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; if (sscanf(buf, "%x:%x:%d", &base, &ctl, &irq) != 3) @@ -41,11 +40,9 @@ static ssize_t store_add(struct class *cls, const char *buf, size_t n) hw.irq = irq; hw.chipset = ide_generic; - host = ide_host_alloc(NULL, hws); - if (host == NULL) - return -ENOENT; - - ide_host_register(host, NULL, hws); + rc = ide_host_add(NULL, hws, NULL); + if (rc) + return rc; return n; }; diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c index 4458ca61897a..bac9b392b689 100644 --- a/drivers/ide/ide-pnp.c +++ b/drivers/ide/ide-pnp.c @@ -31,6 +31,7 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) { struct ide_host *host; unsigned long base, ctl; + int rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); @@ -59,19 +60,18 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) hw.irq = pnp_irq(dev, 0); hw.chipset = ide_generic; - host = ide_host_alloc(NULL, hws); - if (host) { - pnp_set_drvdata(dev, host); + rc = ide_host_add(NULL, hws, &host); + if (rc) + goto out; - ide_host_register(host, NULL, hws); - - return 0; - } + pnp_set_drvdata(dev, host); + return 0; +out: release_region(ctl, 1); release_region(base, 8); - return -1; + return rc; } static void idepnp_remove(struct pnp_dev *dev) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 84a89561ec0f..17a104b95d54 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1677,6 +1677,24 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d, } EXPORT_SYMBOL_GPL(ide_host_register); +int ide_host_add(const struct ide_port_info *d, hw_regs_t **hws, + struct ide_host **hostp) +{ + struct ide_host *host; + + host = ide_host_alloc(d, hws); + if (host == NULL) + return -ENOMEM; + + ide_host_register(host, d, hws); + + if (hostp) + *hostp = host; + + return 0; +} +EXPORT_SYMBOL_GPL(ide_host_add); + void ide_host_remove(struct ide_host *host) { int i; @@ -1749,7 +1767,6 @@ static void ide_legacy_init_one(hw_regs_t **hws, hw_regs_t *hw, int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) { - struct ide_host *host; hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL }; memset(&hw, 0, sizeof(hw)); @@ -1762,12 +1779,6 @@ int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) (d->host_flags & IDE_HFLAG_SINGLE)) return -ENOENT; - host = ide_host_alloc(d, hws); - if (host == NULL) - return -ENOMEM; - - ide_host_register(host, d, hws); - - return 0; + return ide_host_add(d, hws, NULL); } EXPORT_SYMBOL_GPL(ide_legacy_device_add); diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c index 2625667fab4c..7c2afa97f417 100644 --- a/drivers/ide/legacy/buddha.c +++ b/drivers/ide/legacy/buddha.c @@ -151,7 +151,6 @@ static void __init buddha_setup_ports(hw_regs_t *hw, unsigned long base, static int __init buddha_init(void) { struct zorro_dev *z = NULL; - struct ide_host *host; u_long buddha_board = 0; BuddhaType type; int buddha_num_hwifs, i; @@ -226,9 +225,7 @@ fail_base2: hws[i] = &hw[i]; } - host = ide_host_alloc(NULL, hws); - if (host) - ide_host_register(host, NULL, hws); + ide_host_add(NULL, hws, NULL); } return 0; diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c index 13d22bded6b4..dd5c467d8dd0 100644 --- a/drivers/ide/legacy/gayle.c +++ b/drivers/ide/legacy/gayle.c @@ -127,7 +127,6 @@ static int __init gayle_init(void) unsigned long phys_base, res_start, res_n; unsigned long base, ctrlport, irqport; ide_ack_intr_t *ack_intr; - struct ide_host *host; int a4000, i; hw_regs_t hw[GAYLE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; @@ -180,11 +179,7 @@ found: hws[i] = &hw[i]; } - host = ide_host_alloc(NULL, hws); - if (host) - ide_host_register(host, NULL, hws); - - return 0; + return ide_host_add(NULL, hws, NULL); } module_init(gayle_init); diff --git a/drivers/ide/legacy/ide-4drives.c b/drivers/ide/legacy/ide-4drives.c index 5935153ef2ad..c76d55de6996 100644 --- a/drivers/ide/legacy/ide-4drives.c +++ b/drivers/ide/legacy/ide-4drives.c @@ -28,7 +28,6 @@ static const struct ide_port_info ide_4drives_port_info = { static int __init ide_4drives_init(void) { - struct ide_host *host; unsigned long base = 0x1f0, ctl = 0x3f6; hw_regs_t hw, *hws[] = { &hw, &hw, NULL, NULL }; @@ -54,11 +53,7 @@ static int __init ide_4drives_init(void) hw.irq = 14; hw.chipset = ide_4drives; - host = ide_host_alloc(&ide_4drives_port_info, hws); - if (host) - ide_host_register(host, &ide_4drives_port_info, hws); - - return 0; + return ide_host_add(&ide_4drives_port_info, hws, NULL); } module_init(ide_4drives_init); diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c index 1a4b9e6887fa..21bfac137844 100644 --- a/drivers/ide/legacy/ide-cs.c +++ b/drivers/ide/legacy/ide-cs.c @@ -162,7 +162,7 @@ static struct ide_host *idecs_register(unsigned long io, unsigned long ctl, { struct ide_host *host; ide_hwif_t *hwif; - int i; + int i, rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; if (!request_region(io, 8, DRV_NAME)) { @@ -184,12 +184,10 @@ static struct ide_host *idecs_register(unsigned long io, unsigned long ctl, hw.chipset = ide_pci; hw.dev = &handle->dev; - host = ide_host_alloc(&idecs_port_info, hws); - if (host == NULL) + rc = ide_host_add(&idecs_port_info, hws, &host); + if (rc) goto out_release; - ide_host_register(host, &idecs_port_info, hws); - hwif = host->ports[0]; if (hwif->present) diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c index 58a942c6a131..051b4ab0f359 100644 --- a/drivers/ide/legacy/ide_platform.c +++ b/drivers/ide/legacy/ide_platform.c @@ -99,13 +99,9 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) if (mmio) d.host_flags |= IDE_HFLAG_MMIO; - host = ide_host_alloc(&d, hws); - if (host == NULL) { - ret = -ENODEV; + ret = ide_host_add(&d, hws, &host); + if (ret) goto out; - } - - ide_host_register(host, &d, hws); platform_set_drvdata(pdev, host); diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c index b49cf8c2b91a..a0bb167980e7 100644 --- a/drivers/ide/legacy/macide.c +++ b/drivers/ide/legacy/macide.c @@ -92,7 +92,6 @@ static const char *mac_ide_name[] = static int __init macide_init(void) { ide_ack_intr_t *ack_intr; - struct ide_host *host; unsigned long base; int irq; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; @@ -125,11 +124,7 @@ static int __init macide_init(void) macide_setup_ports(&hw, base, irq, ack_intr); - host = ide_host_alloc(NULL, hws); - if (host) - ide_host_register(host, NULL, hws); - - return 0; + return ide_host_add(NULL, hws, NULL); } module_init(macide_init); diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c index 8fb4438a6afd..4abd8fc78197 100644 --- a/drivers/ide/legacy/q40ide.c +++ b/drivers/ide/legacy/q40ide.c @@ -131,7 +131,6 @@ static const char *q40_ide_names[Q40IDE_NUM_HWIFS]={ static int __init q40ide_init(void) { - struct ide_host *host; int i; hw_regs_t hw[Q40IDE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; @@ -160,11 +159,7 @@ static int __init q40ide_init(void) hws[i] = &hw[i]; } - host = ide_host_alloc(&q40ide_port_info, hws); - if (host) - ide_host_register(host, &q40ide_port_info, hws); - - return 0; + return ide_host_add(&q40ide_port_info, hws, NULL); } module_init(q40ide_init); diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index 903c628bddd0..11b7f61aae40 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -609,13 +609,9 @@ static int au_ide_probe(struct device *dev) hw.dev = dev; hw.chipset = ide_au1xxx; - host = ide_host_alloc(&au1xxx_port_info, hws); - if (host == NULL) { - ret = -ENOENT; + ret = ide_host_add(&au1xxx_port_info, hws, &host); + if (ret) goto out; - } - - ide_host_register(host, &au1xxx_port_info, hws); auide_hwif.hwif = host->ports[0]; diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c index b12d9d224831..badf79fc9e3a 100644 --- a/drivers/ide/mips/swarm.c +++ b/drivers/ide/mips/swarm.c @@ -75,7 +75,7 @@ static int __devinit swarm_ide_probe(struct device *dev) u8 __iomem *base; struct ide_host *host; phys_t offset, size; - int i; + int i, rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; if (!SIBYTE_HAVE_IDE) @@ -115,19 +115,17 @@ static int __devinit swarm_ide_probe(struct device *dev) hw.irq = K_INT_GB_IDE; hw.chipset = ide_generic; - host = ide_host_alloc(&swarm_port_info, hws); - if (host == NULL) + rc = ide_host_add(&swarm_port_info, hws, &host); + if (rc) goto err; - ide_host_register(host, &swarm_port_info, hws); - dev_set_drvdata(dev, host); return 0; err: release_resource(&swarm_ide_resource); iounmap(base); - return -ENOMEM; + return rc; } static struct device_driver swarm_ide_driver = { diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index 013697b8cef4..e6c62006ca1a 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -709,7 +709,6 @@ static int cmd640x_init_one(unsigned long base, unsigned long ctl) */ static int __init cmd640x_init(void) { - struct ide_host *host; int second_port_cmd640 = 0, rc; const char *bus_type, *port2; u8 b, cfr; @@ -829,11 +828,7 @@ static int __init cmd640x_init(void) cmd640_dump_regs(); #endif - host = ide_host_alloc(&cmd640_port_info, hws); - if (host) - ide_host_register(host, &cmd640_port_info, hws); - - return 1; + return ide_host_add(&cmd640_port_info, hws, NULL); } module_param_named(probe_vlb, cmd640_vlb, bool, 0); diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index b8ec06d22c61..b03d8ae947e6 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -114,7 +114,6 @@ static const struct ide_port_info cyrix_chipsets[] __devinitdata = { static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - struct ide_host *host; const struct ide_port_info *d = &cyrix_chipsets[id->driver_data]; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; @@ -140,11 +139,7 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic ide_pci_setup_ports(dev, d, 14, &hw[0], &hws[0]); - host = ide_host_alloc(d, hws); - if (host) - ide_host_register(host, d, hws); - - return 0; + return ide_host_add(d, hws, NULL); } static const struct pci_device_id cs5520_pci_tbl[] = { diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c index 5eb9d9325184..f84bfb4f600f 100644 --- a/drivers/ide/pci/delkin_cb.c +++ b/drivers/ide/pci/delkin_cb.c @@ -86,12 +86,10 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) hw.dev = &dev->dev; hw.chipset = ide_pci; /* this enables IRQ sharing */ - host = ide_host_alloc(&delkin_cb_port_info, hws); - if (host == NULL) + rc = ide_host_add(&delkin_cb_port_info, hws, &host); + if (rc) goto out_disable; - ide_host_register(host, &delkin_cb_port_info, hws); - pci_set_drvdata(dev, host); return 0; @@ -99,7 +97,7 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) out_disable: pci_release_regions(dev); pci_disable_device(dev); - return -ENODEV; + return rc; } static void diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index d5e2ba6bacd6..94a7ab864236 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -588,7 +588,7 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev, struct scc_ports *ports = pci_get_drvdata(dev); struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - int i; + int i, rc; memset(&hw, 0, sizeof(hw)); for (i = 0; i <= 8; i++) @@ -597,11 +597,9 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev, hw.dev = &dev->dev; hw.chipset = ide_pci; - host = ide_host_alloc(d, hws); - if (host == NULL) - return -ENOMEM; - - ide_host_register(host, d, hws); + rc = ide_host_add(d, hws, &host); + if (rc) + return rc; ports->host = host; diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index ecd2f28da1ba..c521bf6e1bf2 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1043,6 +1043,7 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) ide_hwif_t *hwif; hw_regs_t *hws[] = { hw, NULL, NULL, NULL }; struct ide_port_info d = pmac_port_info; + int rc; pmif->broken_dma = pmif->broken_dma_warn = 0; if (of_device_is_compatible(np, "shasta-ata")) { @@ -1118,11 +1119,9 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw) pmif->mdev ? "macio" : "PCI", pmif->aapl_bus_id, pmif->mediabay ? " (mediabay)" : "", hw->irq); - host = ide_host_alloc(&d, hws); - if (host == NULL) - return -ENOENT; - - ide_host_register(host, &d, hws); + rc = ide_host_add(&d, hws, &host); + if (rc) + return rc; hwif = host->ports[0]; diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 1c0c5570dec8..b15cad58dc81 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -541,7 +541,6 @@ out: int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) { - struct ide_host *host; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; int ret; @@ -551,9 +550,7 @@ int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) /* FIXME: silent failure can happen */ ide_pci_setup_ports(dev, d, ret, &hw[0], &hws[0]); - host = ide_host_alloc(d, hws); - if (host) - ide_host_register(host, d, hws); + ret = ide_host_add(d, hws, NULL); } return ret; @@ -564,7 +561,6 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, const struct ide_port_info *d) { struct pci_dev *pdev[] = { dev1, dev2 }; - struct ide_host *host; int ret, i; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; @@ -582,9 +578,7 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, ide_pci_setup_ports(pdev[i], d, ret, &hw[i*2], &hws[i*2]); } - host = ide_host_alloc(d, hws); - if (host) - ide_host_register(host, d, hws); + ret = ide_host_add(d, hws, NULL); out: return ret; } diff --git a/include/linux/ide.h b/include/linux/ide.h index a41ae57fafc5..764afd94b917 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1238,6 +1238,8 @@ struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **); struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); int ide_host_register(struct ide_host *, const struct ide_port_info *, hw_regs_t **); +int ide_host_add(const struct ide_port_info *, hw_regs_t **, + struct ide_host **); void ide_host_remove(struct ide_host *); int ide_legacy_device_add(const struct ide_port_info *, unsigned long); void ide_port_unregister_devices(ide_hwif_t *); -- cgit v1.2.3 From 8a69580e1ea9516caada5eed202afd39546e9809 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 23 Jul 2008 19:55:59 +0200 Subject: ide: add ide_host_free() helper (take 2) * Add ide_host_free() helper and convert ide_host_remove() to use it. * Fix handling of ide_host_register() failure in ide_host_add(), icside.c, ide-generic.c, falconide.c and sgiioc4.c. While at it: * Fix handling of ide_host_alloc_all() failure in ide-generic.c. * Fix handling of ide_host_alloc() failure in falconide.c (also return the correct error value if no device is found). v2: * falconide build fix. (From Stephen Rothwell) Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/arm/icside.c | 21 +++++++++++++++++---- drivers/ide/ide-generic.c | 27 +++++++++++++++++++++++---- drivers/ide/ide-probe.c | 23 ++++++++++++++++++++--- drivers/ide/legacy/falconide.c | 22 +++++++++++++++++----- drivers/ide/pci/sgiioc4.c | 14 ++++++++++---- include/linux/ide.h | 1 + 6 files changed, 88 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index 6fa58425466a..f575e8341aec 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -445,6 +445,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) void __iomem *base; struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; + int ret; base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0); if (!base) @@ -472,9 +473,15 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) ecard_set_drvdata(ec, state); - ide_host_register(host, NULL, hws); + ret = ide_host_register(host, NULL, hws); + if (ret) + goto err_free; return 0; +err_free: + ide_host_free(host); + ecard_set_drvdata(ec, NULL); + return ret; } static const struct ide_port_info icside_v6_port_info __initdata = { @@ -547,11 +554,17 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) d.dma_ops = NULL; } - ide_host_register(host, &d, hws); + ret = ide_host_register(host, NULL, hws); + if (ret) + goto err_free; return 0; - - out: +err_free: + ide_host_free(host); + if (d.dma_ops) + free_dma(ec->dma); + ecard_set_drvdata(ec, NULL); +out: return ret; } diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c index a7082c28d06f..31d98fec775f 100644 --- a/drivers/ide/ide-generic.c +++ b/drivers/ide/ide-generic.c @@ -84,13 +84,14 @@ static int __init ide_generic_init(void) { hw_regs_t hw[MAX_HWIFS], *hws[MAX_HWIFS]; struct ide_host *host; - int i; + unsigned long io_addr; + int i, rc; printk(KERN_INFO DRV_NAME ": please use \"probe_mask=0x3f\" module " "parameter for probing all legacy ISA IDE ports\n"); for (i = 0; i < MAX_HWIFS; i++) { - unsigned long io_addr = ide_default_io_base(i); + io_addr = ide_default_io_base(i); hws[i] = NULL; @@ -120,14 +121,32 @@ static int __init ide_generic_init(void) } host = ide_host_alloc_all(NULL, hws); - if (host) - ide_host_register(host, NULL, hws); + if (host == NULL) { + rc = -ENOMEM; + goto err; + } + + rc = ide_host_register(host, NULL, hws); + if (rc) + goto err_free; if (ide_generic_sysfs_init()) printk(KERN_ERR DRV_NAME ": failed to create ide_generic " "class\n"); return 0; +err_free: + ide_host_free(host); +err: + for (i = 0; i < MAX_HWIFS; i++) { + if (hws[i] == NULL) + continue; + + io_addr = hws[i]->io_ports.data_addr; + release_region(io_addr + 0x206, 1); + release_region(io_addr, 8); + } + return rc; } module_init(ide_generic_init); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 6d57b7cd5424..0ead4537fc63 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1729,12 +1729,17 @@ int ide_host_add(const struct ide_port_info *d, hw_regs_t **hws, struct ide_host **hostp) { struct ide_host *host; + int rc; host = ide_host_alloc(d, hws); if (host == NULL) return -ENOMEM; - ide_host_register(host, d, hws); + rc = ide_host_register(host, d, hws); + if (rc) { + ide_host_free(host); + return rc; + } if (hostp) *hostp = host; @@ -1743,7 +1748,7 @@ int ide_host_add(const struct ide_port_info *d, hw_regs_t **hws, } EXPORT_SYMBOL_GPL(ide_host_add); -void ide_host_remove(struct ide_host *host) +void ide_host_free(struct ide_host *host) { ide_hwif_t *hwif; int i; @@ -1754,13 +1759,25 @@ void ide_host_remove(struct ide_host *host) if (hwif == NULL) continue; - ide_unregister(hwif); ide_free_port_slot(hwif->index); kfree(hwif); } kfree(host); } +EXPORT_SYMBOL_GPL(ide_host_free); + +void ide_host_remove(struct ide_host *host) +{ + int i; + + for (i = 0; i < MAX_HWIFS; i++) { + if (host->ports[i]) + ide_unregister(host->ports[i]); + } + + ide_host_free(host); +} EXPORT_SYMBOL_GPL(ide_host_remove); void ide_port_scan(ide_hwif_t *hwif) diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c index 4eb5c3f9fecc..724f95073d80 100644 --- a/drivers/ide/legacy/falconide.c +++ b/drivers/ide/legacy/falconide.c @@ -114,9 +114,10 @@ static int __init falconide_init(void) { struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; + int rc; if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE)) - return 0; + return -ENODEV; printk(KERN_INFO "ide: Falcon IDE controller\n"); @@ -128,13 +129,24 @@ static int __init falconide_init(void) falconide_setup_ports(&hw); host = ide_host_alloc(&falconide_port_info, hws); - if (host) { - ide_get_lock(NULL, NULL); - ide_host_register(host, &falconide_port_info, hws); - ide_release_lock(); + if (host == NULL) { + rc = -ENOMEM; + goto err; } + ide_get_lock(NULL, NULL); + rc = ide_host_register(host, &falconide_port_info, hws); + ide_release_lock(); + + if (rc) + goto err_free; + return 0; +err_free: + ide_host_free(host); +err: + release_mem_region(ATA_HD_BASE, 0x40); + return rc; } module_init(falconide_init); diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 440f43a86ad3..42eef19a18f1 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -603,6 +603,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) struct ide_host *host; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; struct ide_port_info d = sgiioc4_port_info; + int rc; /* Get the CmdBlk and CtrlBlk Base Registers */ bar0 = pci_resource_start(dev, 0); @@ -638,17 +639,22 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4)); host = ide_host_alloc(&d, hws); - if (host == NULL) + if (host == NULL) { + rc = -ENOMEM; goto err; + } - if (ide_host_register(host, &d, hws)) - return -EIO; + rc = ide_host_register(host, &d, hws); + if (rc) + goto err_free; return 0; +err_free: + ide_host_free(host); err: release_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE); iounmap(virt_base); - return -ENOMEM; + return rc; } static unsigned int __devinit diff --git a/include/linux/ide.h b/include/linux/ide.h index 764afd94b917..46d5bfe2fefb 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1236,6 +1236,7 @@ void ide_port_apply_params(ide_hwif_t *); struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **); struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); +void ide_host_free(struct ide_host *); int ide_host_register(struct ide_host *, const struct ide_port_info *, hw_regs_t **); int ide_host_add(const struct ide_port_info *, hw_regs_t **, -- cgit v1.2.3 From d7c26ebb5bca284ece9db7311a9e180aabae1922 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 23 Jul 2008 19:55:59 +0200 Subject: ide: push pc callback pointer into the ide_drive_t structure Refrain from carrying the callback ptr with every packet command since the callback function is only one anyways. ide_drive_t is probably not the most suitable place for it right now but is the more sane solution. Besides, these structs are going to be reorganized anyways during the generic ide rewrite. Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index 46d5bfe2fefb..a28823297edc 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -308,7 +308,7 @@ struct ide_acpi_drive_link; struct ide_acpi_hwif_link; #endif -typedef struct ide_drive_s { +struct ide_drive_s { char name[4]; /* drive name, such as "hda" */ char driver_req[10]; /* requests specific driver */ @@ -400,7 +400,12 @@ typedef struct ide_drive_s { struct list_head list; struct device gendev; struct completion gendev_rel_comp; /* to deal with device release() */ -} ide_drive_t; + + /* callback for packet commands */ + void (*pc_callback)(struct ide_drive_s *); +}; + +typedef struct ide_drive_s ide_drive_t; #define to_ide_device(dev)container_of(dev, ide_drive_t, gendev) -- cgit v1.2.3 From 8bcda3bc492c56abed33a8cbf824c410d7ce69f0 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 23 Jul 2008 19:56:00 +0200 Subject: ide: remove pc->callback member from ide_atapi_pc There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index a28823297edc..d8ec8afb4ef3 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -662,8 +662,6 @@ struct ide_atapi_pc { */ u8 pc_buf[256]; - void (*callback)(ide_drive_t *); - /* idetape only */ struct idetape_bh *bh; char *b_data; -- cgit v1.2.3 From 3b8ac5398ca8137b41aa5da4d9fad89153450aaa Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 23 Jul 2008 19:56:01 +0200 Subject: ide: add per-device flags Push device flags up into ide_drive_t. There should be no functionality change resulting from this patch. [bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags] Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index d8ec8afb4ef3..fcf2d1bede08 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -308,6 +308,64 @@ struct ide_acpi_drive_link; struct ide_acpi_hwif_link; #endif +/* ATAPI device flags */ +enum { + IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), + IDE_AFLAG_MEDIA_CHANGED = (1 << 1), + + /* ide-cd */ + /* Drive cannot lock the door. */ + IDE_AFLAG_NO_DOORLOCK = (1 << 2), + /* Drive cannot eject the disc. */ + IDE_AFLAG_NO_EJECT = (1 << 3), + /* Drive is a pre ATAPI 1.2 drive. */ + IDE_AFLAG_PRE_ATAPI12 = (1 << 4), + /* TOC addresses are in BCD. */ + IDE_AFLAG_TOCADDR_AS_BCD = (1 << 5), + /* TOC track numbers are in BCD. */ + IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 6), + /* + * Drive does not provide data in multiples of SECTOR_SIZE + * when more than one interrupt is needed. + */ + IDE_AFLAG_LIMIT_NFRAMES = (1 << 7), + /* Seeking in progress. */ + IDE_AFLAG_SEEKING = (1 << 8), + /* Saved TOC information is current. */ + IDE_AFLAG_TOC_VALID = (1 << 9), + /* We think that the drive door is locked. */ + IDE_AFLAG_DOOR_LOCKED = (1 << 10), + /* SET_CD_SPEED command is unsupported. */ + IDE_AFLAG_NO_SPEED_SELECT = (1 << 11), + IDE_AFLAG_VERTOS_300_SSD = (1 << 12), + IDE_AFLAG_VERTOS_600_ESD = (1 << 13), + IDE_AFLAG_SANYO_3CD = (1 << 14), + IDE_AFLAG_FULL_CAPS_PAGE = (1 << 15), + IDE_AFLAG_PLAY_AUDIO_OK = (1 << 16), + IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), + + /* ide-floppy */ + /* Format in progress */ + IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18), + /* Avoid commands not supported in Clik drive */ + IDE_AFLAG_CLIK_DRIVE = (1 << 19), + /* Requires BH algorithm for packets */ + IDE_AFLAG_ZIP_DRIVE = (1 << 20), + + /* ide-tape */ + IDE_AFLAG_IGNORE_DSC = (1 << 21), + /* 0 When the tape position is unknown */ + IDE_AFLAG_ADDRESS_VALID = (1 << 22), + /* Device already opened */ + IDE_AFLAG_BUSY = (1 << 23), + /* Attempt to auto-detect the current user block size */ + IDE_AFLAG_DETECT_BS = (1 << 24), + /* Currently on a filemark */ + IDE_AFLAG_FILEMARK = (1 << 25), + /* 0 = no tape is loaded, so we don't rewind after ejecting */ + IDE_AFLAG_MEDIUM_PRESENT = (1 << 26) +}; + struct ide_drive_s { char name[4]; /* drive name, such as "hda" */ char driver_req[10]; /* requests specific driver */ @@ -403,6 +461,8 @@ struct ide_drive_s { /* callback for packet commands */ void (*pc_callback)(struct ide_drive_s *); + + unsigned long atapi_flags; }; typedef struct ide_drive_s ide_drive_t; -- cgit v1.2.3 From ea68d270ff55bcdfa5d07697eb68103b5b02c7bb Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 23 Jul 2008 19:56:01 +0200 Subject: ide-floppy: convert to using the new atapi_flags (take 2) while at it, remove PC_FLAG_ZIP_DRIVE from the packed command flags altogether and query the drive type through drive->atapi_flags. v2: ide-floppy fix. There should be no functionality change resulting from this patch. [bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags] Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 5 ++-- drivers/ide/ide-floppy.c | 73 ++++++++++++++++++------------------------------ include/linux/ide.h | 3 +- 3 files changed, 31 insertions(+), 50 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index f848010c15a5..711a5f6d35e4 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -257,7 +257,7 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, } /* Send the actual packet */ - if ((pc->flags & PC_FLAG_ZIP_DRIVE) == 0) + if ((drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) == 0) hwif->tp_ops->output_data(drive, NULL, rq->cmd, 12); return ide_started; @@ -302,7 +302,8 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, bcount, dma); /* Issue the packet command */ - if (pc->flags & PC_FLAG_DRQ_INTERRUPT) { + if ((pc->flags & PC_FLAG_DRQ_INTERRUPT) || + (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT)) { ide_execute_command(drive, WIN_PACKETCMD, handler, timeout, NULL); return ide_started; diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index cbf84f2e9cce..3d8e6dd0f41e 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -125,26 +125,10 @@ typedef struct ide_floppy_obj { int wp; /* Supports format progress report */ int srfp; - /* Status/Action flags */ - unsigned long flags; } idefloppy_floppy_t; #define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */ -/* Floppy flag bits values. */ -enum { - /* DRQ interrupt device */ - IDEFLOPPY_FLAG_DRQ_INTERRUPT = (1 << 0), - /* Media may have changed */ - IDEFLOPPY_FLAG_MEDIA_CHANGED = (1 << 1), - /* Format in progress */ - IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS = (1 << 2), - /* Avoid commands not supported in Clik drive */ - IDEFLOPPY_FLAG_CLIK_DRIVE = (1 << 3), - /* Requires BH algorithm for packets */ - IDEFLOPPY_FLAG_ZIP_DRIVE = (1 << 4), -}; - /* Defines for the MODE SENSE command */ #define MODE_SENSE_CURRENT 0x00 #define MODE_SENSE_CHANGEABLE 0x01 @@ -429,7 +413,7 @@ static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive) * 40 and 50msec work well. idefloppy_pc_intr will not be actually * used until after the packet is moved in about 50 msec. */ - if (pc->flags & PC_FLAG_ZIP_DRIVE) { + if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { timeout = floppy->ticks; expiry = &idefloppy_transfer_pc; } else { @@ -649,12 +633,6 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, return ide_stopped; } - if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) - pc->flags |= PC_FLAG_DRQ_INTERRUPT; - - if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) - pc->flags |= PC_FLAG_ZIP_DRIVE; - pc->rq = rq; return idefloppy_issue_pc(drive, pc); @@ -798,7 +776,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive) switch (pc.buf[desc_start + 4] & 0x03) { /* Clik! drive returns this instead of CAPACITY_CURRENT */ case CAPACITY_UNFORMATTED: - if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) + if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) /* * If it is not a clik drive, break out * (maintains previous driver behaviour) @@ -844,7 +822,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive) } /* Clik! disk does not support get_flexible_disk_page */ - if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) + if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) (void) ide_floppy_get_flexible_disk_page(drive); set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor); @@ -1046,7 +1024,7 @@ static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) drive->pc_callback = ide_floppy_callback; if (((gcw[0] & 0x60) >> 5) == 1) - floppy->flags |= IDEFLOPPY_FLAG_DRQ_INTERRUPT; + drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; /* * We used to check revisions here. At this point however I'm giving up. * Just assume they are all broken, its easier. @@ -1057,7 +1035,7 @@ static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) * we'll leave the limitation below for the 2.2.x tree. */ if (!strncmp(drive->id->model, "IOMEGA ZIP 100 ATAPI", 20)) { - floppy->flags |= IDEFLOPPY_FLAG_ZIP_DRIVE; + drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; /* This value will be visible in the /proc/ide/hdx/settings */ floppy->ticks = IDEFLOPPY_TICKS_DELAY; blk_queue_max_sectors(drive->queue, 64); @@ -1069,7 +1047,7 @@ static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) */ if (strncmp(drive->id->model, "IOMEGA Clik!", 11) == 0) { blk_queue_max_sectors(drive->queue, 64); - floppy->flags |= IDEFLOPPY_FLAG_CLIK_DRIVE; + drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; } (void) ide_floppy_get_capacity(drive); @@ -1158,7 +1136,7 @@ static int idefloppy_open(struct inode *inode, struct file *filp) floppy->openers++; if (floppy->openers == 1) { - floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; + drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; /* Just in case */ idefloppy_init_pc(&pc); @@ -1185,14 +1163,14 @@ static int idefloppy_open(struct inode *inode, struct file *filp) ret = -EROFS; goto out_put_floppy; } - floppy->flags |= IDEFLOPPY_FLAG_MEDIA_CHANGED; + drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED; /* IOMEGA Clik! drives do not support lock/unlock commands */ - if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { + if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) { idefloppy_create_prevent_cmd(&pc, 1); (void) idefloppy_queue_pc_tail(drive, &pc); } check_disk_change(inode->i_bdev); - } else if (floppy->flags & IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS) { + } else if (drive->atapi_flags & IDE_AFLAG_FORMAT_IN_PROGRESS) { ret = -EBUSY; goto out_put_floppy; } @@ -1215,12 +1193,12 @@ static int idefloppy_release(struct inode *inode, struct file *filp) if (floppy->openers == 1) { /* IOMEGA Clik! drives do not support lock/unlock commands */ - if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { + if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) { idefloppy_create_prevent_cmd(&pc, 0); (void) idefloppy_queue_pc_tail(drive, &pc); } - floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; + drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; } floppy->openers--; @@ -1241,15 +1219,17 @@ static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo) return 0; } -static int ide_floppy_lockdoor(idefloppy_floppy_t *floppy, - struct ide_atapi_pc *pc, unsigned long arg, unsigned int cmd) +static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc, + unsigned long arg, unsigned int cmd) { + idefloppy_floppy_t *floppy = drive->driver_data; + if (floppy->openers > 1) return -EBUSY; /* The IOMEGA Clik! Drive doesn't support this command - * no room for an eject mechanism */ - if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { + if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) { int prevent = arg ? 1 : 0; if (cmd == CDROMEJECT) @@ -1270,16 +1250,17 @@ static int ide_floppy_lockdoor(idefloppy_floppy_t *floppy, static int ide_floppy_format_unit(idefloppy_floppy_t *floppy, int __user *arg) { - int blocks, length, flags, err = 0; struct ide_atapi_pc pc; + ide_drive_t *drive = floppy->drive; + int blocks, length, flags, err = 0; if (floppy->openers > 1) { /* Don't format if someone is using the disk */ - floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; + drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; return -EBUSY; } - floppy->flags |= IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; + drive->atapi_flags |= IDE_AFLAG_FORMAT_IN_PROGRESS; /* * Send ATAPI_FORMAT_UNIT to the drive. @@ -1303,15 +1284,15 @@ static int ide_floppy_format_unit(idefloppy_floppy_t *floppy, goto out; } - (void) idefloppy_get_sfrp_bit(floppy->drive); + (void) idefloppy_get_sfrp_bit(drive); idefloppy_create_format_unit_cmd(&pc, blocks, length, flags); - if (idefloppy_queue_pc_tail(floppy->drive, &pc)) + if (idefloppy_queue_pc_tail(drive, &pc)) err = -EIO; out: if (err) - floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; + drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; return err; } @@ -1330,7 +1311,7 @@ static int idefloppy_ioctl(struct inode *inode, struct file *file, case CDROMEJECT: /* fall through */ case CDROM_LOCKDOOR: - return ide_floppy_lockdoor(floppy, &pc, arg, cmd); + return ide_floppy_lockdoor(drive, &pc, arg, cmd); case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED: return 0; case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY: @@ -1371,8 +1352,8 @@ static int idefloppy_media_changed(struct gendisk *disk) drive->attach = 0; return 0; } - ret = !!(floppy->flags & IDEFLOPPY_FLAG_MEDIA_CHANGED); - floppy->flags &= ~IDEFLOPPY_FLAG_MEDIA_CHANGED; + ret = !!(drive->atapi_flags & IDE_AFLAG_MEDIA_CHANGED); + drive->atapi_flags &= ~IDE_AFLAG_MEDIA_CHANGED; return ret; } diff --git a/include/linux/ide.h b/include/linux/ide.h index fcf2d1bede08..147bfee1fe70 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -687,8 +687,7 @@ enum { PC_FLAG_WRITING = (1 << 6), /* command timed out */ PC_FLAG_TIMEDOUT = (1 << 7), - PC_FLAG_ZIP_DRIVE = (1 << 8), - PC_FLAG_DRQ_INTERRUPT = (1 << 9), + PC_FLAG_DRQ_INTERRUPT = (1 << 8), }; struct ide_atapi_pc { -- cgit v1.2.3 From ac77ef8b03677c8ae8afe77bccc5f6a969193a79 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 23 Jul 2008 19:56:01 +0200 Subject: ide: remove unused PC_FLAG_DRQ_INTERRUPT There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 3 +-- include/linux/ide.h | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 711a5f6d35e4..adf04f99cdeb 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -302,8 +302,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, bcount, dma); /* Issue the packet command */ - if ((pc->flags & PC_FLAG_DRQ_INTERRUPT) || - (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT)) { + if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { ide_execute_command(drive, WIN_PACKETCMD, handler, timeout, NULL); return ide_started; diff --git a/include/linux/ide.h b/include/linux/ide.h index 147bfee1fe70..d67ccca2b964 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -687,7 +687,6 @@ enum { PC_FLAG_WRITING = (1 << 6), /* command timed out */ PC_FLAG_TIMEDOUT = (1 << 7), - PC_FLAG_DRQ_INTERRUPT = (1 << 8), }; struct ide_atapi_pc { -- cgit v1.2.3 From 5e85e732f0ed56aa97a3ba26ac2b93ffe597a208 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 20 Jul 2008 06:31:39 -0300 Subject: V4L/DVB (8428): videodev: rename 'dev' to 'parent' The field 'dev' is not the video device, but the parent of the video device. Rename accordingly. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/bt8xx/bttv-driver.c | 4 ++-- drivers/media/video/cafe_ccic.c | 2 +- drivers/media/video/cx18/cx18-streams.c | 2 +- drivers/media/video/cx23885/cx23885-417.c | 2 +- drivers/media/video/cx23885/cx23885-video.c | 2 +- drivers/media/video/cx88/cx88-core.c | 2 +- drivers/media/video/em28xx/em28xx-video.c | 2 +- drivers/media/video/gspca/gspca.c | 2 +- drivers/media/video/ivtv/ivtv-streams.c | 2 +- drivers/media/video/meye.c | 2 +- drivers/media/video/mt9m001.c | 2 +- drivers/media/video/ov511.c | 2 +- drivers/media/video/pwc/pwc-if.c | 2 +- drivers/media/video/s2255drv.c | 2 +- drivers/media/video/saa7134/saa7134-core.c | 2 +- drivers/media/video/saa7134/saa7134-empress.c | 2 +- drivers/media/video/soc_camera.c | 10 +++++----- drivers/media/video/stk-webcam.c | 2 +- drivers/media/video/stv680.c | 2 +- drivers/media/video/usbvideo/usbvideo.c | 2 +- drivers/media/video/usbvision/usbvision-video.c | 2 +- drivers/media/video/uvc/uvc_driver.c | 2 +- drivers/media/video/v4l2-dev.c | 6 +++--- drivers/media/video/w9968cf.c | 2 +- include/media/v4l2-dev.h | 2 +- 25 files changed, 32 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index 0ea559a7fe59..3dda84d115d1 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -164,7 +164,7 @@ static ssize_t show_card(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vfd = container_of(cd, struct video_device, class_dev); - struct bttv *btv = dev_get_drvdata(vfd->dev); + struct bttv *btv = dev_get_drvdata(vfd->parent); return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET); } static DEVICE_ATTR(card, S_IRUGO, show_card, NULL); @@ -4185,7 +4185,7 @@ static struct video_device *vdev_init(struct bttv *btv, return NULL; *vfd = *template; vfd->minor = -1; - vfd->dev = &btv->c.pci->dev; + vfd->parent = &btv->c.pci->dev; vfd->release = video_device_release; vfd->type = type; vfd->debug = bttv_debug; diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c index d99453faaab7..ebcc8ad6271f 100644 --- a/drivers/media/video/cafe_ccic.c +++ b/drivers/media/video/cafe_ccic.c @@ -2157,7 +2157,7 @@ static int cafe_pci_probe(struct pci_dev *pdev, cam->v4ldev = cafe_v4l_template; cam->v4ldev.debug = 0; // cam->v4ldev.debug = V4L2_DEBUG_IOCTL_ARG; - cam->v4ldev.dev = &pdev->dev; + cam->v4ldev.parent = &pdev->dev; ret = video_register_device(&cam->v4ldev, VFL_TYPE_GRABBER, -1); if (ret) goto out_smbus; diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c index 1728b1d832a9..210a2416b320 100644 --- a/drivers/media/video/cx18/cx18-streams.c +++ b/drivers/media/video/cx18/cx18-streams.c @@ -194,7 +194,7 @@ static int cx18_prep_dev(struct cx18 *cx, int type) cx->num); s->v4l2dev->minor = minor; - s->v4l2dev->dev = &cx->dev->dev; + s->v4l2dev->parent = &cx->dev->dev; s->v4l2dev->fops = cx18_stream_info[type].fops; s->v4l2dev->release = video_device_release; s->v4l2dev->tvnorms = V4L2_STD_ALL; diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c index e7ef093265af..1b252976edac 100644 --- a/drivers/media/video/cx23885/cx23885-417.c +++ b/drivers/media/video/cx23885/cx23885-417.c @@ -1766,7 +1766,7 @@ static struct video_device *cx23885_video_dev_alloc( vfd->minor = -1; snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type, cx23885_boards[tsport->dev->board].name); - vfd->dev = &pci->dev; + vfd->parent = &pci->dev; vfd->release = video_device_release; return vfd; } diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 043fc4e5c586..3b807ba874f1 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -326,7 +326,7 @@ struct video_device *cx23885_vdev_init(struct cx23885_dev *dev, return NULL; *vfd = *template; vfd->minor = -1; - vfd->dev = &pci->dev; + vfd->parent = &pci->dev; vfd->release = video_device_release; snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type, cx23885_boards[dev->board].name); diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c index 60eeda3057e9..2c0582e05594 100644 --- a/drivers/media/video/cx88/cx88-core.c +++ b/drivers/media/video/cx88/cx88-core.c @@ -1006,7 +1006,7 @@ struct video_device *cx88_vdev_init(struct cx88_core *core, return NULL; *vfd = *template; vfd->minor = -1; - vfd->dev = &pci->dev; + vfd->parent = &pci->dev; vfd->release = video_device_release; snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", core->name, type, core->board.name); diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 2d9f14d2a00b..838e7ecfd865 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -1892,7 +1892,7 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev, return NULL; *vfd = *template; vfd->minor = -1; - vfd->dev = &dev->udev->dev; + vfd->parent = &dev->udev->dev; vfd->release = video_device_release; vfd->type = type; vfd->debug = video_debug; diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 16e367cec760..f5b77deab72d 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -1740,7 +1740,7 @@ int gspca_dev_probe(struct usb_interface *intf, /* init video stuff */ memcpy(&gspca_dev->vdev, &gspca_template, sizeof gspca_template); - gspca_dev->vdev.dev = &dev->dev; + gspca_dev->vdev.parent = &dev->dev; memcpy(&gspca_dev->fops, &dev_fops, sizeof gspca_dev->fops); gspca_dev->vdev.fops = &gspca_dev->fops; gspca_dev->fops.owner = module; /* module protection */ diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c index f8883b487f4a..b883c4e08fbd 100644 --- a/drivers/media/video/ivtv/ivtv-streams.c +++ b/drivers/media/video/ivtv/ivtv-streams.c @@ -217,7 +217,7 @@ static int ivtv_prep_dev(struct ivtv *itv, int type) itv->num, s->name); s->v4l2dev->minor = minor; - s->v4l2dev->dev = &itv->dev->dev; + s->v4l2dev->parent = &itv->dev->dev; s->v4l2dev->fops = ivtv_stream_info[type].fops; s->v4l2dev->release = video_device_release; s->v4l2dev->tvnorms = V4L2_STD_ALL; diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c index 2fb5854cf6f0..0045367a66f1 100644 --- a/drivers/media/video/meye.c +++ b/drivers/media/video/meye.c @@ -1801,7 +1801,7 @@ static int __devinit meye_probe(struct pci_dev *pcidev, } memcpy(meye.video_dev, &meye_template, sizeof(meye_template)); - meye.video_dev->dev = &meye.mchip_dev->dev; + meye.video_dev->parent = &meye.mchip_dev->dev; if ((ret = sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 1))) { printk(KERN_ERR "meye: unable to power on the camera\n"); diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c index ee43499544c1..554d2295484e 100644 --- a/drivers/media/video/mt9m001.c +++ b/drivers/media/video/mt9m001.c @@ -120,7 +120,7 @@ static int mt9m001_init(struct soc_camera_device *icd) int ret; /* Disable chip, synchronous option update */ - dev_dbg(icd->vdev->dev, "%s\n", __func__); + dev_dbg(icd->vdev->parent, "%s\n", __func__); ret = reg_write(icd, MT9M001_RESET, 1); if (ret >= 0) diff --git a/drivers/media/video/ov511.c b/drivers/media/video/ov511.c index eafb0c7736e6..b72e5660bc19 100644 --- a/drivers/media/video/ov511.c +++ b/drivers/media/video/ov511.c @@ -5833,7 +5833,7 @@ ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id) goto error; memcpy(ov->vdev, &vdev_template, sizeof(*ov->vdev)); - ov->vdev->dev = &intf->dev; + ov->vdev->parent = &intf->dev; video_set_drvdata(ov->vdev, ov); for (i = 0; i < OV511_MAX_UNIT_VIDEO; i++) { diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c index 423fa7c2d0c9..b4de82115e5b 100644 --- a/drivers/media/video/pwc/pwc-if.c +++ b/drivers/media/video/pwc/pwc-if.c @@ -1767,7 +1767,7 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id return -ENOMEM; } memcpy(pdev->vdev, &pwc_template, sizeof(pwc_template)); - pdev->vdev->dev = &(udev->dev); + pdev->vdev->parent = &(udev->dev); strcpy(pdev->vdev->name, name); pdev->vdev->owner = THIS_MODULE; video_set_drvdata(pdev->vdev, pdev); diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c index 04eb2c3fabd8..5f8cd3de98e3 100644 --- a/drivers/media/video/s2255drv.c +++ b/drivers/media/video/s2255drv.c @@ -1706,7 +1706,7 @@ static int s2255_probe_v4l(struct s2255_dev *dev) /* register 4 video devices */ dev->vdev[i] = video_device_alloc(); memcpy(dev->vdev[i], &template, sizeof(struct video_device)); - dev->vdev[i]->dev = &dev->interface->dev; + dev->vdev[i]->parent = &dev->interface->dev; if (video_nr == -1) ret = video_register_device(dev->vdev[i], VFL_TYPE_GRABBER, diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index cfee84ee7a88..f3e7a598e4b5 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -798,7 +798,7 @@ static struct video_device *vdev_init(struct saa7134_dev *dev, return NULL; *vfd = *template; vfd->minor = -1; - vfd->dev = &dev->pci->dev; + vfd->parent = &dev->pci->dev; vfd->release = video_device_release; vfd->debug = video_debug; snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c index 2a5ab957542d..3854cc29752d 100644 --- a/drivers/media/video/saa7134/saa7134-empress.c +++ b/drivers/media/video/saa7134/saa7134-empress.c @@ -465,7 +465,7 @@ static int empress_init(struct saa7134_dev *dev) if (NULL == dev->empress_dev) return -ENOMEM; *(dev->empress_dev) = saa7134_empress_template; - dev->empress_dev->dev = &dev->pci->dev; + dev->empress_dev->parent = &dev->pci->dev; dev->empress_dev->release = video_device_release; snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name), "%s empress (%s)", dev->name, diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index e39b98f1eca4..58c8c39b9597 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -193,7 +193,7 @@ static int soc_camera_open(struct inode *inode, struct file *file) mutex_lock(&video_lock); vdev = video_devdata(file); - icd = container_of(vdev->dev, struct soc_camera_device, dev); + icd = container_of(vdev->parent, struct soc_camera_device, dev); ici = to_soc_camera_host(icd->dev.parent); if (!try_module_get(icd->ops->owner)) { @@ -258,7 +258,7 @@ static int soc_camera_close(struct inode *inode, struct file *file) vfree(icf); - dev_dbg(vdev->dev, "camera device close\n"); + dev_dbg(vdev->parent, "camera device close\n"); return 0; } @@ -271,7 +271,7 @@ static ssize_t soc_camera_read(struct file *file, char __user *buf, struct video_device *vdev = icd->vdev; int err = -EINVAL; - dev_err(vdev->dev, "camera device read not implemented\n"); + dev_err(vdev->parent, "camera device read not implemented\n"); return err; } @@ -877,7 +877,7 @@ int soc_camera_video_start(struct soc_camera_device *icd) strlcpy(vdev->name, ici->drv_name, sizeof(vdev->name)); /* Maybe better &ici->dev */ - vdev->dev = &icd->dev; + vdev->parent = &icd->dev; vdev->type = VID_TYPE_CAPTURE; vdev->current_norm = V4L2_STD_UNKNOWN; vdev->fops = &soc_camera_fops; @@ -915,7 +915,7 @@ int soc_camera_video_start(struct soc_camera_device *icd) err = video_register_device(vdev, VFL_TYPE_GRABBER, vdev->minor); if (err < 0) { - dev_err(vdev->dev, "video_register_device failed\n"); + dev_err(vdev->parent, "video_register_device failed\n"); goto evidregd; } icd->vdev = vdev; diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c index f308c38d744f..5998a5483194 100644 --- a/drivers/media/video/stk-webcam.c +++ b/drivers/media/video/stk-webcam.c @@ -1369,7 +1369,7 @@ static int stk_register_video_device(struct stk_camera *dev) dev->vdev = stk_v4l_data; dev->vdev.debug = debug; - dev->vdev.dev = &dev->interface->dev; + dev->vdev.parent = &dev->interface->dev; dev->vdev.priv = dev; err = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); if (err) diff --git a/drivers/media/video/stv680.c b/drivers/media/video/stv680.c index d7f130bedb5f..27e2f4aac13d 100644 --- a/drivers/media/video/stv680.c +++ b/drivers/media/video/stv680.c @@ -1454,7 +1454,7 @@ static int stv680_probe (struct usb_interface *intf, const struct usb_device_id goto error; } memcpy(stv680->vdev, &stv680_template, sizeof(stv680_template)); - stv680->vdev->dev = &intf->dev; + stv680->vdev->parent = &intf->dev; video_set_drvdata(stv680->vdev, stv680); memcpy (stv680->vdev->name, stv680->camera_name, strlen (stv680->camera_name)); diff --git a/drivers/media/video/usbvideo/usbvideo.c b/drivers/media/video/usbvideo/usbvideo.c index 4128ee20b64e..7e6ab2910c13 100644 --- a/drivers/media/video/usbvideo/usbvideo.c +++ b/drivers/media/video/usbvideo/usbvideo.c @@ -1040,7 +1040,7 @@ int usbvideo_RegisterVideoDevice(struct uvd *uvd) err("%s: uvd->dev == NULL", __func__); return -EINVAL; } - uvd->vdev.dev = &uvd->dev->dev; + uvd->vdev.parent = &uvd->dev->dev; if (video_register_device(&uvd->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { err("%s: video_register_device failed", __func__); return -EPIPE; diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index cd6c41d67899..899906d954aa 100644 --- a/drivers/media/video/usbvision/usbvision-video.c +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -1506,7 +1506,7 @@ static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, } *vdev = *vdev_template; // vdev->minor = -1; - vdev->dev = &usb_dev->dev; + vdev->parent = &usb_dev->dev; snprintf(vdev->name, sizeof(vdev->name), "%s", name); video_set_drvdata(vdev, usbvision); return vdev; diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c index f2b2983fe062..79d6821c4741 100644 --- a/drivers/media/video/uvc/uvc_driver.c +++ b/drivers/media/video/uvc/uvc_driver.c @@ -1458,7 +1458,7 @@ static int uvc_register_video(struct uvc_device *dev) * unregistered before the reference is released, so we don't need to * get another one. */ - vdev->dev = &dev->intf->dev; + vdev->parent = &dev->intf->dev; vdev->type = 0; vdev->type2 = 0; vdev->minor = -1; diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 2dd82b16bc35..9cc2cf1a1c93 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -201,7 +201,7 @@ static int get_index(struct video_device *vdev, int num) for (i = 0; i < VIDEO_NUM_DEVICES; i++) { if (video_device[i] != NULL && video_device[i] != vdev && - video_device[i]->dev == vdev->dev) { + video_device[i]->parent == vdev->parent) { used |= 1 << video_device[i]->index; } } @@ -323,8 +323,8 @@ int video_register_device_index(struct video_device *vfd, int type, int nr, memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev)); vfd->class_dev.class = &video_class; vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); - if (vfd->dev) - vfd->class_dev.parent = vfd->dev; + if (vfd->parent) + vfd->class_dev.parent = vfd->parent; sprintf(vfd->class_dev.bus_id, "%s%d", name_base, i - base); ret = device_register(&vfd->class_dev); if (ret < 0) { diff --git a/drivers/media/video/w9968cf.c b/drivers/media/video/w9968cf.c index 840522442d07..3f5a59dc5f8f 100644 --- a/drivers/media/video/w9968cf.c +++ b/drivers/media/video/w9968cf.c @@ -3555,7 +3555,7 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) cam->v4ldev->minor = video_nr[dev_nr]; cam->v4ldev->release = video_device_release; video_set_drvdata(cam->v4ldev, cam); - cam->v4ldev->dev = &cam->dev; + cam->v4ldev->parent = &cam->dev; err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER, video_nr[dev_nr]); diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 33f379b1ecfe..5ae261fbcb7e 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -89,7 +89,7 @@ struct video_device /* sysfs */ struct device class_dev; /* v4l device */ - struct device *dev; /* device parent */ + struct device *parent; /* device parent */ /* device info */ char name[32]; -- cgit v1.2.3 From 22a04f106346c3af019135f2de3cabf9ac41c3ba Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 20 Jul 2008 06:35:02 -0300 Subject: V4L/DVB (8429): videodev: renamed 'class_dev' to 'dev' The class_dev field is a normal device, not a class device. This is very confusing and now that the old 'dev' field has been renamed to 'parent' we can rename 'class_dev' to just 'dev'. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/bt8xx/bttv-driver.c | 4 +- drivers/media/video/et61x251/et61x251_core.c | 2 +- drivers/media/video/sn9c102/sn9c102_core.c | 60 +++++++++------------ drivers/media/video/usbvision/usbvision-video.c | 72 ++++++++++--------------- drivers/media/video/v4l2-dev.c | 23 ++++---- include/media/v4l2-dev.h | 14 ++--- 6 files changed, 72 insertions(+), 103 deletions(-) (limited to 'include') diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index 3dda84d115d1..fff2fffcad63 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -163,7 +163,7 @@ MODULE_LICENSE("GPL"); static ssize_t show_card(struct device *cd, struct device_attribute *attr, char *buf) { - struct video_device *vfd = container_of(cd, struct video_device, class_dev); + struct video_device *vfd = container_of(cd, struct video_device, dev); struct bttv *btv = dev_get_drvdata(vfd->parent); return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET); } @@ -4244,7 +4244,7 @@ static int __devinit bttv_register_video(struct bttv *btv) goto err; printk(KERN_INFO "bttv%d: registered device video%d\n", btv->c.nr,btv->video_dev->minor & 0x1f); - if (device_create_file(&btv->video_dev->class_dev, + if (device_create_file(&btv->video_dev->dev, &dev_attr_card)<0) { printk(KERN_ERR "bttv%d: device_create_file 'card' " "failed\n", btv->c.nr); diff --git a/drivers/media/video/et61x251/et61x251_core.c b/drivers/media/video/et61x251/et61x251_core.c index 15d037ae25c5..3eea1333a52f 100644 --- a/drivers/media/video/et61x251/et61x251_core.c +++ b/drivers/media/video/et61x251/et61x251_core.c @@ -985,7 +985,7 @@ static DEVICE_ATTR(i2c_val, S_IRUGO | S_IWUSR, static int et61x251_create_sysfs(struct et61x251_device* cam) { - struct device *classdev = &(cam->v4ldev->class_dev); + struct device *classdev = &(cam->v4ldev->dev); int err = 0; if ((err = device_create_file(classdev, &dev_attr_reg))) diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c index 7f9c7bcf3c85..475b78191151 100644 --- a/drivers/media/video/sn9c102/sn9c102_core.c +++ b/drivers/media/video/sn9c102/sn9c102_core.c @@ -1038,8 +1038,7 @@ static ssize_t sn9c102_show_reg(struct device* cd, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1064,8 +1063,7 @@ sn9c102_store_reg(struct device* cd, struct device_attribute *attr, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1098,8 +1096,7 @@ static ssize_t sn9c102_show_val(struct device* cd, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1132,8 +1129,7 @@ sn9c102_store_val(struct device* cd, struct device_attribute *attr, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1170,8 +1166,7 @@ static ssize_t sn9c102_show_i2c_reg(struct device* cd, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1198,8 +1193,7 @@ sn9c102_store_i2c_reg(struct device* cd, struct device_attribute *attr, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1232,8 +1226,7 @@ static ssize_t sn9c102_show_i2c_val(struct device* cd, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1271,8 +1264,7 @@ sn9c102_store_i2c_val(struct device* cd, struct device_attribute *attr, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1318,8 +1310,7 @@ sn9c102_store_green(struct device* cd, struct device_attribute *attr, if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) { mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; @@ -1400,8 +1391,7 @@ static ssize_t sn9c102_show_frame_header(struct device* cd, struct sn9c102_device* cam; ssize_t count; - cam = video_get_drvdata(container_of(cd, struct video_device, - class_dev)); + cam = video_get_drvdata(container_of(cd, struct video_device, dev)); if (!cam) return -ENODEV; @@ -1428,49 +1418,49 @@ static DEVICE_ATTR(frame_header, S_IRUGO, sn9c102_show_frame_header, NULL); static int sn9c102_create_sysfs(struct sn9c102_device* cam) { - struct device *classdev = &(cam->v4ldev->class_dev); + struct device *dev = &(cam->v4ldev->dev); int err = 0; - if ((err = device_create_file(classdev, &dev_attr_reg))) + if ((err = device_create_file(dev, &dev_attr_reg))) goto err_out; - if ((err = device_create_file(classdev, &dev_attr_val))) + if ((err = device_create_file(dev, &dev_attr_val))) goto err_reg; - if ((err = device_create_file(classdev, &dev_attr_frame_header))) + if ((err = device_create_file(dev, &dev_attr_frame_header))) goto err_val; if (cam->sensor.sysfs_ops) { - if ((err = device_create_file(classdev, &dev_attr_i2c_reg))) + if ((err = device_create_file(dev, &dev_attr_i2c_reg))) goto err_frame_header; - if ((err = device_create_file(classdev, &dev_attr_i2c_val))) + if ((err = device_create_file(dev, &dev_attr_i2c_val))) goto err_i2c_reg; } if (cam->bridge == BRIDGE_SN9C101 || cam->bridge == BRIDGE_SN9C102) { - if ((err = device_create_file(classdev, &dev_attr_green))) + if ((err = device_create_file(dev, &dev_attr_green))) goto err_i2c_val; } else { - if ((err = device_create_file(classdev, &dev_attr_blue))) + if ((err = device_create_file(dev, &dev_attr_blue))) goto err_i2c_val; - if ((err = device_create_file(classdev, &dev_attr_red))) + if ((err = device_create_file(dev, &dev_attr_red))) goto err_blue; } return 0; err_blue: - device_remove_file(classdev, &dev_attr_blue); + device_remove_file(dev, &dev_attr_blue); err_i2c_val: if (cam->sensor.sysfs_ops) - device_remove_file(classdev, &dev_attr_i2c_val); + device_remove_file(dev, &dev_attr_i2c_val); err_i2c_reg: if (cam->sensor.sysfs_ops) - device_remove_file(classdev, &dev_attr_i2c_reg); + device_remove_file(dev, &dev_attr_i2c_reg); err_frame_header: - device_remove_file(classdev, &dev_attr_frame_header); + device_remove_file(dev, &dev_attr_frame_header); err_val: - device_remove_file(classdev, &dev_attr_val); + device_remove_file(dev, &dev_attr_val); err_reg: - device_remove_file(classdev, &dev_attr_reg); + device_remove_file(dev, &dev_attr_reg); err_out: return err; } diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index 899906d954aa..2ddfaa34e6b0 100644 --- a/drivers/media/video/usbvision/usbvision-video.c +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -184,7 +184,7 @@ MODULE_ALIAS(DRIVER_ALIAS); static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); return video_get_drvdata(vdev); } @@ -199,7 +199,7 @@ static ssize_t show_model(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString); @@ -210,7 +210,7 @@ static ssize_t show_hue(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_HUE; @@ -225,7 +225,7 @@ static ssize_t show_contrast(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_CONTRAST; @@ -240,7 +240,7 @@ static ssize_t show_brightness(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_BRIGHTNESS; @@ -255,7 +255,7 @@ static ssize_t show_saturation(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_SATURATION; @@ -270,7 +270,7 @@ static ssize_t show_streaming(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0)); @@ -281,7 +281,7 @@ static ssize_t show_compression(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); @@ -292,7 +292,7 @@ static ssize_t show_device_bridge(struct device *cd, struct device_attribute *attr, char *buf) { struct video_device *vdev = - container_of(cd, struct video_device, class_dev); + container_of(cd, struct video_device, dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); return sprintf(buf, "%d\n", usbvision->bridgeType); } @@ -304,40 +304,31 @@ static void usbvision_create_sysfs(struct video_device *vdev) if (!vdev) return; do { - res = device_create_file(&vdev->class_dev, - &dev_attr_version); + res = device_create_file(&vdev->dev, &dev_attr_version); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_model); + res = device_create_file(&vdev->dev, &dev_attr_model); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_hue); + res = device_create_file(&vdev->dev, &dev_attr_hue); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_contrast); + res = device_create_file(&vdev->dev, &dev_attr_contrast); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_brightness); + res = device_create_file(&vdev->dev, &dev_attr_brightness); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_saturation); + res = device_create_file(&vdev->dev, &dev_attr_saturation); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_streaming); + res = device_create_file(&vdev->dev, &dev_attr_streaming); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_compression); + res = device_create_file(&vdev->dev, &dev_attr_compression); if (res<0) break; - res = device_create_file(&vdev->class_dev, - &dev_attr_bridge); + res = device_create_file(&vdev->dev, &dev_attr_bridge); if (res>=0) return; } while (0); @@ -348,24 +339,15 @@ static void usbvision_create_sysfs(struct video_device *vdev) static void usbvision_remove_sysfs(struct video_device *vdev) { if (vdev) { - device_remove_file(&vdev->class_dev, - &dev_attr_version); - device_remove_file(&vdev->class_dev, - &dev_attr_model); - device_remove_file(&vdev->class_dev, - &dev_attr_hue); - device_remove_file(&vdev->class_dev, - &dev_attr_contrast); - device_remove_file(&vdev->class_dev, - &dev_attr_brightness); - device_remove_file(&vdev->class_dev, - &dev_attr_saturation); - device_remove_file(&vdev->class_dev, - &dev_attr_streaming); - device_remove_file(&vdev->class_dev, - &dev_attr_compression); - device_remove_file(&vdev->class_dev, - &dev_attr_bridge); + device_remove_file(&vdev->dev, &dev_attr_version); + device_remove_file(&vdev->dev, &dev_attr_model); + device_remove_file(&vdev->dev, &dev_attr_hue); + device_remove_file(&vdev->dev, &dev_attr_contrast); + device_remove_file(&vdev->dev, &dev_attr_brightness); + device_remove_file(&vdev->dev, &dev_attr_saturation); + device_remove_file(&vdev->dev, &dev_attr_streaming); + device_remove_file(&vdev->dev, &dev_attr_compression); + device_remove_file(&vdev->dev, &dev_attr_bridge); } } diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 9cc2cf1a1c93..88eeee1d8baf 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -41,16 +41,14 @@ static ssize_t show_index(struct device *cd, struct device_attribute *attr, char *buf) { - struct video_device *vfd = container_of(cd, struct video_device, - class_dev); + struct video_device *vfd = container_of(cd, struct video_device, dev); return sprintf(buf, "%i\n", vfd->index); } static ssize_t show_name(struct device *cd, struct device_attribute *attr, char *buf) { - struct video_device *vfd = container_of(cd, struct video_device, - class_dev); + struct video_device *vfd = container_of(cd, struct video_device, dev); return sprintf(buf, "%.*s\n", (int)sizeof(vfd->name), vfd->name); } @@ -77,8 +75,7 @@ EXPORT_SYMBOL(video_device_release); static void video_release(struct device *cd) { - struct video_device *vfd = container_of(cd, struct video_device, - class_dev); + struct video_device *vfd = container_of(cd, struct video_device, dev); #if 1 /* needed until all drivers are fixed */ @@ -320,13 +317,13 @@ int video_register_device_index(struct video_device *vfd, int type, int nr, mutex_init(&vfd->lock); /* sysfs class */ - memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev)); - vfd->class_dev.class = &video_class; - vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); + memset(&vfd->dev, 0x00, sizeof(vfd->dev)); + vfd->dev.class = &video_class; + vfd->dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); if (vfd->parent) - vfd->class_dev.parent = vfd->parent; - sprintf(vfd->class_dev.bus_id, "%s%d", name_base, i - base); - ret = device_register(&vfd->class_dev); + vfd->dev.parent = vfd->parent; + sprintf(vfd->dev.bus_id, "%s%d", name_base, i - base); + ret = device_register(&vfd->dev); if (ret < 0) { printk(KERN_ERR "%s: device_register failed\n", __func__); goto fail_minor; @@ -365,7 +362,7 @@ void video_unregister_device(struct video_device *vfd) panic("videodev: bad unregister"); video_device[vfd->minor] = NULL; - device_unregister(&vfd->class_dev); + device_unregister(&vfd->dev); mutex_unlock(&videodev_lock); } EXPORT_SYMBOL(video_unregister_device); diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 5ae261fbcb7e..185372ffa270 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -88,18 +88,18 @@ struct video_device const struct file_operations *fops; /* sysfs */ - struct device class_dev; /* v4l device */ + struct device dev; /* v4l device */ struct device *parent; /* device parent */ /* device info */ char name[32]; - int type; /* v4l1 */ - int type2; /* v4l2 */ + int type; /* v4l1 */ + int type2; /* v4l2 */ int minor; /* attribute to diferentiate multiple indexs on one physical device */ int index; - int debug; /* Activates debug level*/ + int debug; /* Activates debug level*/ /* Video standard vars */ v4l2_std_id tvnorms; /* Supported tv norms */ @@ -345,7 +345,7 @@ void *priv; }; /* Class-dev to video-device */ -#define to_video_device(cd) container_of(cd, struct video_device, class_dev) +#define to_video_device(cd) container_of(cd, struct video_device, dev) /* Version 2 functions */ extern int video_register_device(struct video_device *vfd, int type, int nr); @@ -373,7 +373,7 @@ static inline int __must_check video_device_create_file(struct video_device *vfd, struct device_attribute *attr) { - int ret = device_create_file(&vfd->class_dev, attr); + int ret = device_create_file(&vfd->dev, attr); if (ret < 0) printk(KERN_WARNING "%s error: %d\n", __func__, ret); return ret; @@ -382,7 +382,7 @@ static inline void video_device_remove_file(struct video_device *vfd, struct device_attribute *attr) { - device_remove_file(&vfd->class_dev, attr); + device_remove_file(&vfd->dev, attr); } #endif /* CONFIG_VIDEO_V4L1_COMPAT */ -- cgit v1.2.3 From 35ea11ff84719b1bfab2909903a9640a86552fd1 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 20 Jul 2008 08:12:02 -0300 Subject: V4L/DVB (8430): videodev: move some functions from v4l2-dev.h to v4l2-common.h or v4l2-ioctl.h The functions in a header should not belong to another module. The prio functions belong to v4l2-common.c, so move them to v4l2-common.h. The ioctl functions belong to v4l2-ioctl.c, so create a new v4l2-ioctl.h header and move those functions to it. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/dsbr100.c | 1 + drivers/media/radio/miropcm20-radio.c | 1 + drivers/media/radio/radio-aimslab.c | 1 + drivers/media/radio/radio-aztech.c | 1 + drivers/media/radio/radio-cadet.c | 1 + drivers/media/radio/radio-gemtek-pci.c | 1 + drivers/media/radio/radio-gemtek.c | 1 + drivers/media/radio/radio-maestro.c | 1 + drivers/media/radio/radio-maxiradio.c | 1 + drivers/media/radio/radio-rtrack2.c | 1 + drivers/media/radio/radio-sf16fmi.c | 1 + drivers/media/radio/radio-sf16fmr2.c | 1 + drivers/media/radio/radio-si470x.c | 1 + drivers/media/radio/radio-terratec.c | 1 + drivers/media/radio/radio-trust.c | 1 + drivers/media/radio/radio-typhoon.c | 1 + drivers/media/radio/radio-zoltrix.c | 1 + drivers/media/video/bt8xx/bttv-driver.c | 1 + drivers/media/video/bt8xx/bttv-risc.c | 1 + drivers/media/video/bt8xx/bttv-vbi.c | 1 + drivers/media/video/bw-qcam.c | 1 + drivers/media/video/c-qcam.c | 1 + drivers/media/video/cafe_ccic.c | 1 + drivers/media/video/cpia.h | 1 + drivers/media/video/cpia2/cpia2_v4l.c | 1 + drivers/media/video/cx18/cx18-driver.h | 1 + drivers/media/video/cx23885/cx23885-417.c | 1 + drivers/media/video/cx23885/cx23885-video.c | 1 + drivers/media/video/cx88/cx88-blackbird.c | 1 + drivers/media/video/cx88/cx88-core.c | 1 + drivers/media/video/cx88/cx88-video.c | 1 + drivers/media/video/em28xx/em28xx-video.c | 1 + drivers/media/video/et61x251/et61x251_core.c | 1 + drivers/media/video/gspca/gspca.c | 1 + drivers/media/video/ivtv/ivtv-driver.h | 1 + drivers/media/video/meye.c | 1 + drivers/media/video/msp3400-driver.c | 1 + drivers/media/video/ov511.h | 1 + drivers/media/video/pms.c | 1 + drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 1 + drivers/media/video/pwc/pwc.h | 1 + drivers/media/video/s2255drv.c | 1 + drivers/media/video/saa5246a.c | 1 + drivers/media/video/saa5249.c | 1 + drivers/media/video/saa7134/saa7134.h | 1 + drivers/media/video/se401.h | 1 + drivers/media/video/sn9c102/sn9c102.h | 1 + drivers/media/video/soc_camera.c | 1 + drivers/media/video/stk-webcam.c | 1 + drivers/media/video/stv680.c | 1 + drivers/media/video/tda7432.c | 1 + drivers/media/video/tuner-core.c | 1 + drivers/media/video/usbvideo/usbvideo.h | 1 + drivers/media/video/usbvision/usbvision-video.c | 1 + drivers/media/video/uvc/uvc_v4l2.c | 1 + drivers/media/video/v4l1-compat.c | 1 + drivers/media/video/v4l2-ioctl.c | 1865 +++++++++++++++++++++++ drivers/media/video/vivi.c | 1 + drivers/media/video/w9966.c | 1 + drivers/media/video/zc0301/zc0301.h | 1 + drivers/media/video/zoran_driver.c | 1 + drivers/media/video/zr364xx.c | 1 + include/media/saa7146_vv.h | 1 + include/media/v4l2-common.h | 15 + include/media/v4l2-dev.h | 45 - include/media/v4l2-ioctl.h | 57 + 66 files changed, 1999 insertions(+), 45 deletions(-) create mode 100644 drivers/media/video/v4l2-ioctl.c create mode 100644 include/media/v4l2-ioctl.h (limited to 'include') diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c index 4e3f83e4e48f..97c6853ad1d3 100644 --- a/drivers/media/radio/dsbr100.c +++ b/drivers/media/radio/dsbr100.c @@ -85,6 +85,7 @@ #include #include #include +#include #include /* diff --git a/drivers/media/radio/miropcm20-radio.c b/drivers/media/radio/miropcm20-radio.c index 09fe6f1cdf14..4a332fe8b64b 100644 --- a/drivers/media/radio/miropcm20-radio.c +++ b/drivers/media/radio/miropcm20-radio.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "oss/aci.h" #include "miropcm20-rds-core.h" diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c index 1ec18ed1a733..ec8d64704dd0 100644 --- a/drivers/media/radio/radio-aimslab.c +++ b/drivers/media/radio/radio-aimslab.c @@ -36,6 +36,7 @@ #include /* copy to/from user */ #include /* kernel radio structs */ #include +#include #include /* for KERNEL_VERSION MACRO */ #define RADIO_VERSION KERNEL_VERSION(0,0,2) diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c index 46cdb549eac7..639164a974a1 100644 --- a/drivers/media/radio/radio-aztech.c +++ b/drivers/media/radio/radio-aztech.c @@ -33,6 +33,7 @@ #include /* copy to/from user */ #include /* kernel radio structs */ #include +#include #include /* for KERNEL_VERSION MACRO */ #define RADIO_VERSION KERNEL_VERSION(0,0,2) diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c index b14db53ea456..484ea87d7fba 100644 --- a/drivers/media/radio/radio-cadet.c +++ b/drivers/media/radio/radio-cadet.c @@ -39,6 +39,7 @@ #include /* copy to/from user */ #include /* V4L2 API defs */ #include +#include #include #include diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c index de49be971480..2b834b95f3e7 100644 --- a/drivers/media/radio/radio-gemtek-pci.c +++ b/drivers/media/radio/radio-gemtek-pci.c @@ -46,6 +46,7 @@ #include #include #include +#include #include #include /* for KERNEL_VERSION MACRO */ diff --git a/drivers/media/radio/radio-gemtek.c b/drivers/media/radio/radio-gemtek.c index 81f6aeb1cd11..4740bacc2f88 100644 --- a/drivers/media/radio/radio-gemtek.c +++ b/drivers/media/radio/radio-gemtek.c @@ -23,6 +23,7 @@ #include /* outb, outb_p */ #include /* copy to/from user */ #include /* kernel radio structs */ +#include #include #include diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c index bddd3c409aa9..040a73fac694 100644 --- a/drivers/media/radio/radio-maestro.c +++ b/drivers/media/radio/radio-maestro.c @@ -27,6 +27,7 @@ #include #include #include +#include #include /* for KERNEL_VERSION MACRO */ #define RADIO_VERSION KERNEL_VERSION(0,0,6) diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c index 0133ecf3e040..9e824a7d5cc4 100644 --- a/drivers/media/radio/radio-maxiradio.c +++ b/drivers/media/radio/radio-maxiradio.c @@ -44,6 +44,7 @@ #include #include #include +#include #define DRIVER_VERSION "0.77" diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c index 070802103dc3..c3fb270f211b 100644 --- a/drivers/media/radio/radio-rtrack2.c +++ b/drivers/media/radio/radio-rtrack2.c @@ -17,6 +17,7 @@ #include /* copy to/from user */ #include /* kernel radio structs */ #include +#include #include #include /* for KERNEL_VERSION MACRO */ diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c index 66e052fd3909..bb8b1c9107b1 100644 --- a/drivers/media/radio/radio-sf16fmi.c +++ b/drivers/media/radio/radio-sf16fmi.c @@ -24,6 +24,7 @@ #include /* udelay */ #include /* kernel radio structs */ #include +#include #include #include /* outb, outb_p */ #include /* copy to/from user */ diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c index b0ccf7cb5952..9fa025b704cb 100644 --- a/drivers/media/radio/radio-sf16fmr2.c +++ b/drivers/media/radio/radio-sf16fmr2.c @@ -22,6 +22,7 @@ #include /* copy to/from user */ #include /* kernel radio structs */ #include +#include #include static struct mutex lock; diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c index dc93a882b385..333612180176 100644 --- a/drivers/media/radio/radio-si470x.c +++ b/drivers/media/radio/radio-si470x.c @@ -133,6 +133,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c index acc32080e9bd..a9914dbcf493 100644 --- a/drivers/media/radio/radio-terratec.c +++ b/drivers/media/radio/radio-terratec.c @@ -32,6 +32,7 @@ #include /* copy to/from user */ #include /* kernel radio structs */ #include +#include #include #include /* for KERNEL_VERSION MACRO */ diff --git a/drivers/media/radio/radio-trust.c b/drivers/media/radio/radio-trust.c index 4ebdfbadeb9c..560c49481a2d 100644 --- a/drivers/media/radio/radio-trust.c +++ b/drivers/media/radio/radio-trust.c @@ -23,6 +23,7 @@ #include #include #include +#include #include /* for KERNEL_VERSION MACRO */ #define RADIO_VERSION KERNEL_VERSION(0,0,2) diff --git a/drivers/media/radio/radio-typhoon.c b/drivers/media/radio/radio-typhoon.c index 18f2abd7e255..023d6f3c751c 100644 --- a/drivers/media/radio/radio-typhoon.c +++ b/drivers/media/radio/radio-typhoon.c @@ -40,6 +40,7 @@ #include /* copy to/from user */ #include /* kernel radio structs */ #include +#include #include /* for KERNEL_VERSION MACRO */ #define RADIO_VERSION KERNEL_VERSION(0,1,1) diff --git a/drivers/media/radio/radio-zoltrix.c b/drivers/media/radio/radio-zoltrix.c index 43773c56c62f..cf0355bb6ef7 100644 --- a/drivers/media/radio/radio-zoltrix.c +++ b/drivers/media/radio/radio-zoltrix.c @@ -37,6 +37,7 @@ #include /* copy to/from user */ #include /* kernel radio structs */ #include +#include #include /* for KERNEL_VERSION MACRO */ #define RADIO_VERSION KERNEL_VERSION(0,0,2) diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index fff2fffcad63..33c72055447d 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -45,6 +45,7 @@ #include #include "bttvp.h" #include +#include #include #include diff --git a/drivers/media/video/bt8xx/bttv-risc.c b/drivers/media/video/bt8xx/bttv-risc.c index 0af586876e72..649682aac1ac 100644 --- a/drivers/media/video/bt8xx/bttv-risc.c +++ b/drivers/media/video/bt8xx/bttv-risc.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "bttvp.h" diff --git a/drivers/media/video/bt8xx/bttv-vbi.c b/drivers/media/video/bt8xx/bttv-vbi.c index 68f28e5fa040..6819e21a3773 100644 --- a/drivers/media/video/bt8xx/bttv-vbi.c +++ b/drivers/media/video/bt8xx/bttv-vbi.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include "bttvp.h" diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c index b364adaae78d..e367862313e1 100644 --- a/drivers/media/video/bw-qcam.c +++ b/drivers/media/video/bw-qcam.c @@ -74,6 +74,7 @@ OTHER DEALINGS IN THE SOFTWARE. #include #include #include +#include #include #include diff --git a/drivers/media/video/c-qcam.c b/drivers/media/video/c-qcam.c index fe1e67bb1ca8..8d690410c84f 100644 --- a/drivers/media/video/c-qcam.c +++ b/drivers/media/video/c-qcam.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c index ebcc8ad6271f..302c57f151c2 100644 --- a/drivers/media/video/cafe_ccic.c +++ b/drivers/media/video/cafe_ccic.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/video/cpia.h b/drivers/media/video/cpia.h index 5096058bf579..8f0cfee4b8a1 100644 --- a/drivers/media/video/cpia.h +++ b/drivers/media/video/cpia.h @@ -46,6 +46,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/cpia2/cpia2_v4l.c b/drivers/media/video/cpia2/cpia2_v4l.c index 7ce2789fa976..8817c3841463 100644 --- a/drivers/media/video/cpia2/cpia2_v4l.c +++ b/drivers/media/video/cpia2/cpia2_v4l.c @@ -37,6 +37,7 @@ #include #include #include +#include #include "cpia2.h" #include "cpia2dev.h" diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index 45e31b04730e..4801bc7fb5b2 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -46,6 +46,7 @@ #include #include #include +#include #include #include "cx18-mailbox.h" #include "cx18-av-core.h" diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c index 1b252976edac..4d0dcb06c19d 100644 --- a/drivers/media/video/cx23885/cx23885-417.c +++ b/drivers/media/video/cx23885/cx23885-417.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include "cx23885.h" diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 3b807ba874f1..245712e45f69 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -33,6 +33,7 @@ #include "cx23885.h" #include +#include #ifdef CONFIG_VIDEO_V4L1_COMPAT /* Include V4L1 specific functions. Should be removed soon */ diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index bfdca5847764..4d1a461f329f 100644 --- a/drivers/media/video/cx88/cx88-blackbird.c +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include "cx88.h" diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c index 2c0582e05594..d656fec59010 100644 --- a/drivers/media/video/cx88/cx88-core.c +++ b/drivers/media/video/cx88/cx88-core.c @@ -40,6 +40,7 @@ #include "cx88.h" #include +#include MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards"); MODULE_AUTHOR("Gerd Knorr [SuSE Labs]"); diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 0fed5cd2ccea..d08c11eb8a75 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -39,6 +39,7 @@ #include "cx88.h" #include +#include #ifdef CONFIG_VIDEO_V4L1_COMPAT /* Include V4L1 specific functions. Should be removed soon */ diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 838e7ecfd865..67c62eaa5b6d 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -38,6 +38,7 @@ #include "em28xx.h" #include +#include #include #include diff --git a/drivers/media/video/et61x251/et61x251_core.c b/drivers/media/video/et61x251/et61x251_core.c index 3eea1333a52f..8cd5f37425ea 100644 --- a/drivers/media/video/et61x251/et61x251_core.c +++ b/drivers/media/video/et61x251/et61x251_core.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index f5b77deab72d..8170a6937b8c 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -32,6 +32,7 @@ #include #include #include +#include #include "gspca.h" diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h index a08bb3331cfb..ab287b48fc2b 100644 --- a/drivers/media/video/ivtv/ivtv-driver.h +++ b/drivers/media/video/ivtv/ivtv-driver.h @@ -60,6 +60,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c index 0045367a66f1..a1fb9874fdcf 100644 --- a/drivers/media/video/meye.c +++ b/drivers/media/video/meye.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c index 5691e019d195..780531b587a4 100644 --- a/drivers/media/video/msp3400-driver.c +++ b/drivers/media/video/msp3400-driver.c @@ -54,6 +54,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/video/ov511.h b/drivers/media/video/ov511.h index 1010e51189b7..baded1262ca9 100644 --- a/drivers/media/video/ov511.h +++ b/drivers/media/video/ov511.h @@ -4,6 +4,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c index 51b1461d8fb6..260c1d3f9692 100644 --- a/drivers/media/video/pms.c +++ b/drivers/media/video/pms.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 0d72dc470fef..bd6169fbdcca 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -30,6 +30,7 @@ #include #include #include +#include struct pvr2_v4l2_dev; struct pvr2_v4l2_fh; diff --git a/drivers/media/video/pwc/pwc.h b/drivers/media/video/pwc/pwc.h index 8e8e5b27e77e..835db149a3b1 100644 --- a/drivers/media/video/pwc/pwc.h +++ b/drivers/media/video/pwc/pwc.h @@ -35,6 +35,7 @@ #include #include #include +#include #include "pwc-uncompress.h" #include diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c index 5f8cd3de98e3..eb81915935b1 100644 --- a/drivers/media/video/s2255drv.c +++ b/drivers/media/video/s2255drv.c @@ -49,6 +49,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/saa5246a.c b/drivers/media/video/saa5246a.c index 03e772130b55..8d69632a6658 100644 --- a/drivers/media/video/saa5246a.c +++ b/drivers/media/video/saa5246a.c @@ -46,6 +46,7 @@ #include #include #include +#include #include #include "saa5246a.h" diff --git a/drivers/media/video/saa5249.c b/drivers/media/video/saa5249.c index fde99d9ee71f..812cfe3fd3f3 100644 --- a/drivers/media/video/saa5249.c +++ b/drivers/media/video/saa5249.c @@ -57,6 +57,7 @@ #include #include #include +#include #include diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index 6927cbea8624..ade4e19799e9 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -34,6 +34,7 @@ #include #include +#include #include #include #include diff --git a/drivers/media/video/se401.h b/drivers/media/video/se401.h index 835ef872e803..2ce685db5d8b 100644 --- a/drivers/media/video/se401.h +++ b/drivers/media/video/se401.h @@ -5,6 +5,7 @@ #include #include #include +#include #include #define se401_DEBUG /* Turn on debug messages */ diff --git a/drivers/media/video/sn9c102/sn9c102.h b/drivers/media/video/sn9c102/sn9c102.h index 0c8d87d8d18d..cbfc44433b99 100644 --- a/drivers/media/video/sn9c102/sn9c102.h +++ b/drivers/media/video/sn9c102/sn9c102.h @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index 58c8c39b9597..b01749088472 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -25,6 +25,7 @@ #include #include +#include #include #include #include diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c index 5998a5483194..20028aeb842b 100644 --- a/drivers/media/video/stk-webcam.c +++ b/drivers/media/video/stk-webcam.c @@ -34,6 +34,7 @@ #include #include #include +#include #include "stk-webcam.h" diff --git a/drivers/media/video/stv680.c b/drivers/media/video/stv680.c index 27e2f4aac13d..da94d3fd8fac 100644 --- a/drivers/media/video/stv680.c +++ b/drivers/media/video/stv680.c @@ -66,6 +66,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/tda7432.c b/drivers/media/video/tda7432.c index ae75c187da79..2fda40c0f255 100644 --- a/drivers/media/video/tda7432.c +++ b/drivers/media/video/tda7432.c @@ -48,6 +48,7 @@ #include #include +#include #include #ifndef VIDEO_AUDIO_BALANCE diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c index 93d879dc510f..d806a3556eed 100644 --- a/drivers/media/video/tuner-core.c +++ b/drivers/media/video/tuner-core.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "mt20xx.h" #include "tda8290.h" diff --git a/drivers/media/video/usbvideo/usbvideo.h b/drivers/media/video/usbvideo/usbvideo.h index 051775d4c726..c66985beb8c9 100644 --- a/drivers/media/video/usbvideo/usbvideo.h +++ b/drivers/media/video/usbvideo/usbvideo.h @@ -18,6 +18,7 @@ #include #include +#include #include #include diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index 2ddfaa34e6b0..56cd685d35ea 100644 --- a/drivers/media/video/usbvision/usbvision-video.c +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -65,6 +65,7 @@ #include #include +#include #include #include diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c index b5a11eb8f9fa..d7bd71be40a9 100644 --- a/drivers/media/video/uvc/uvc_v4l2.c +++ b/drivers/media/video/uvc/uvc_v4l2.c @@ -23,6 +23,7 @@ #include #include +#include #include "uvcvideo.h" diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c index a0f6c60279ec..79937d1031fc 100644 --- a/drivers/media/video/v4l1-compat.c +++ b/drivers/media/video/v4l1-compat.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c new file mode 100644 index 000000000000..56a4fdee9160 --- /dev/null +++ b/drivers/media/video/v4l2-ioctl.c @@ -0,0 +1,1865 @@ +/* + * Video capture interface for Linux version 2 + * + * A generic framework to process V4L2 ioctl commands. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Authors: Alan Cox, (version 1) + * Mauro Carvalho Chehab (version 2) + */ + +#include +#include +#include + +#define __OLD_VIDIOC_ /* To allow fixing old calls */ +#include + +#ifdef CONFIG_VIDEO_V4L1 +#include +#endif +#include +#include +#include + +#define dbgarg(cmd, fmt, arg...) \ + do { \ + if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ + printk(KERN_DEBUG "%s: ", vfd->name); \ + v4l_printk_ioctl(cmd); \ + printk(" " fmt, ## arg); \ + } \ + } while (0) + +#define dbgarg2(fmt, arg...) \ + do { \ + if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ + printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ + } while (0) + +struct std_descr { + v4l2_std_id std; + const char *descr; +}; + +static const struct std_descr standards[] = { + { V4L2_STD_NTSC, "NTSC" }, + { V4L2_STD_NTSC_M, "NTSC-M" }, + { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, + { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, + { V4L2_STD_NTSC_443, "NTSC-443" }, + { V4L2_STD_PAL, "PAL" }, + { V4L2_STD_PAL_BG, "PAL-BG" }, + { V4L2_STD_PAL_B, "PAL-B" }, + { V4L2_STD_PAL_B1, "PAL-B1" }, + { V4L2_STD_PAL_G, "PAL-G" }, + { V4L2_STD_PAL_H, "PAL-H" }, + { V4L2_STD_PAL_I, "PAL-I" }, + { V4L2_STD_PAL_DK, "PAL-DK" }, + { V4L2_STD_PAL_D, "PAL-D" }, + { V4L2_STD_PAL_D1, "PAL-D1" }, + { V4L2_STD_PAL_K, "PAL-K" }, + { V4L2_STD_PAL_M, "PAL-M" }, + { V4L2_STD_PAL_N, "PAL-N" }, + { V4L2_STD_PAL_Nc, "PAL-Nc" }, + { V4L2_STD_PAL_60, "PAL-60" }, + { V4L2_STD_SECAM, "SECAM" }, + { V4L2_STD_SECAM_B, "SECAM-B" }, + { V4L2_STD_SECAM_G, "SECAM-G" }, + { V4L2_STD_SECAM_H, "SECAM-H" }, + { V4L2_STD_SECAM_DK, "SECAM-DK" }, + { V4L2_STD_SECAM_D, "SECAM-D" }, + { V4L2_STD_SECAM_K, "SECAM-K" }, + { V4L2_STD_SECAM_K1, "SECAM-K1" }, + { V4L2_STD_SECAM_L, "SECAM-L" }, + { V4L2_STD_SECAM_LC, "SECAM-Lc" }, + { 0, "Unknown" } +}; + +/* video4linux standard ID conversion to standard name + */ +const char *v4l2_norm_to_name(v4l2_std_id id) +{ + u32 myid = id; + int i; + + /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle + 64 bit comparations. So, on that architecture, with some gcc + variants, compilation fails. Currently, the max value is 30bit wide. + */ + BUG_ON(myid != id); + + for (i = 0; standards[i].std; i++) + if (myid == standards[i].std) + break; + return standards[i].descr; +} +EXPORT_SYMBOL(v4l2_norm_to_name); + +/* Fill in the fields of a v4l2_standard structure according to the + 'id' and 'transmission' parameters. Returns negative on error. */ +int v4l2_video_std_construct(struct v4l2_standard *vs, + int id, const char *name) +{ + u32 index = vs->index; + + memset(vs, 0, sizeof(struct v4l2_standard)); + vs->index = index; + vs->id = id; + if (id & V4L2_STD_525_60) { + vs->frameperiod.numerator = 1001; + vs->frameperiod.denominator = 30000; + vs->framelines = 525; + } else { + vs->frameperiod.numerator = 1; + vs->frameperiod.denominator = 25; + vs->framelines = 625; + } + strlcpy(vs->name, name, sizeof(vs->name)); + return 0; +} +EXPORT_SYMBOL(v4l2_video_std_construct); + +/* ----------------------------------------------------------------- */ +/* some arrays for pretty-printing debug messages of enum types */ + +const char *v4l2_field_names[] = { + [V4L2_FIELD_ANY] = "any", + [V4L2_FIELD_NONE] = "none", + [V4L2_FIELD_TOP] = "top", + [V4L2_FIELD_BOTTOM] = "bottom", + [V4L2_FIELD_INTERLACED] = "interlaced", + [V4L2_FIELD_SEQ_TB] = "seq-tb", + [V4L2_FIELD_SEQ_BT] = "seq-bt", + [V4L2_FIELD_ALTERNATE] = "alternate", + [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", + [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", +}; +EXPORT_SYMBOL(v4l2_field_names); + +const char *v4l2_type_names[] = { + [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", + [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", + [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", + [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", + [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", + [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", + [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", + [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", +}; +EXPORT_SYMBOL(v4l2_type_names); + +static const char *v4l2_memory_names[] = { + [V4L2_MEMORY_MMAP] = "mmap", + [V4L2_MEMORY_USERPTR] = "userptr", + [V4L2_MEMORY_OVERLAY] = "overlay", +}; + +#define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ + arr[a] : "unknown") + +/* ------------------------------------------------------------------ */ +/* debug help functions */ + +#ifdef CONFIG_VIDEO_V4L1_COMPAT +static const char *v4l1_ioctls[] = { + [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP", + [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN", + [_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN", + [_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER", + [_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER", + [_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT", + [_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT", + [_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE", + [_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN", + [_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN", + [_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF", + [_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF", + [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", + [_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ", + [_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ", + [_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO", + [_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO", + [_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC", + [_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE", + [_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF", + [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT", + [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE", + [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE", + [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE", + [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE", + [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO", + [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE", + [_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT", + [_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT" +}; +#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls) +#endif + +static const char *v4l2_ioctls[] = { + [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", + [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", + [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", + [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", + [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", + [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", + [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", + [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", + [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", + [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", + [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", + [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", + [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", + [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", + [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", + [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", + [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", + [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", + [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", + [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", + [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", + [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", + [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", + [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", + [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", + [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", + [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", + [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", + [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", + [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", + [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", + [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", + [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", + [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", + [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", + [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", + [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", + [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", + [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", + [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", + [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", + [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", + [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", + [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", + [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", + [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", + [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", + [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", + [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", + [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", + [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", + [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", + [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", + [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", + [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", +#if 1 + [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", + [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", + [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", + [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", + [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", + + [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", + [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", + + [_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT", + [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", +#endif +}; +#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) + +static const char *v4l2_int_ioctls[] = { +#ifdef CONFIG_VIDEO_V4L1_COMPAT + [_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES", + [_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS", + [_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM", + [_IOC_NR(DECODER_SET_INPUT)] = "DECODER_SET_INPUT", + [_IOC_NR(DECODER_SET_OUTPUT)] = "DECODER_SET_OUTPUT", + [_IOC_NR(DECODER_ENABLE_OUTPUT)] = "DECODER_ENABLE_OUTPUT", + [_IOC_NR(DECODER_SET_PICTURE)] = "DECODER_SET_PICTURE", + [_IOC_NR(DECODER_SET_GPIO)] = "DECODER_SET_GPIO", + [_IOC_NR(DECODER_INIT)] = "DECODER_INIT", + [_IOC_NR(DECODER_SET_VBI_BYPASS)] = "DECODER_SET_VBI_BYPASS", + [_IOC_NR(DECODER_DUMP)] = "DECODER_DUMP", +#endif + [_IOC_NR(AUDC_SET_RADIO)] = "AUDC_SET_RADIO", + + [_IOC_NR(TUNER_SET_TYPE_ADDR)] = "TUNER_SET_TYPE_ADDR", + [_IOC_NR(TUNER_SET_STANDBY)] = "TUNER_SET_STANDBY", + [_IOC_NR(TUNER_SET_CONFIG)] = "TUNER_SET_CONFIG", + + [_IOC_NR(VIDIOC_INT_S_TUNER_MODE)] = "VIDIOC_INT_S_TUNER_MODE", + [_IOC_NR(VIDIOC_INT_RESET)] = "VIDIOC_INT_RESET", + [_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ", + [_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)] = "VIDIOC_INT_DECODE_VBI_LINE", + [_IOC_NR(VIDIOC_INT_S_VBI_DATA)] = "VIDIOC_INT_S_VBI_DATA", + [_IOC_NR(VIDIOC_INT_G_VBI_DATA)] = "VIDIOC_INT_G_VBI_DATA", + [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)] = "VIDIOC_INT_I2S_CLOCK_FREQ", + [_IOC_NR(VIDIOC_INT_S_STANDBY)] = "VIDIOC_INT_S_STANDBY", + [_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)] = "VIDIOC_INT_S_AUDIO_ROUTING", + [_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)] = "VIDIOC_INT_G_AUDIO_ROUTING", + [_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)] = "VIDIOC_INT_S_VIDEO_ROUTING", + [_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING", + [_IOC_NR(VIDIOC_INT_S_CRYSTAL_FREQ)] = "VIDIOC_INT_S_CRYSTAL_FREQ", + [_IOC_NR(VIDIOC_INT_INIT)] = "VIDIOC_INT_INIT", + [_IOC_NR(VIDIOC_INT_G_STD_OUTPUT)] = "VIDIOC_INT_G_STD_OUTPUT", + [_IOC_NR(VIDIOC_INT_S_STD_OUTPUT)] = "VIDIOC_INT_S_STD_OUTPUT", +}; +#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls) + +/* Common ioctl debug function. This function can be used by + external ioctl messages as well as internal V4L ioctl */ +void v4l_printk_ioctl(unsigned int cmd) +{ + char *dir, *type; + + switch (_IOC_TYPE(cmd)) { + case 'd': + if (_IOC_NR(cmd) >= V4L2_INT_IOCTLS) { + type = "v4l2_int"; + break; + } + printk("%s", v4l2_int_ioctls[_IOC_NR(cmd)]); + return; +#ifdef CONFIG_VIDEO_V4L1_COMPAT + case 'v': + if (_IOC_NR(cmd) >= V4L1_IOCTLS) { + type = "v4l1"; + break; + } + printk("%s", v4l1_ioctls[_IOC_NR(cmd)]); + return; +#endif + case 'V': + if (_IOC_NR(cmd) >= V4L2_IOCTLS) { + type = "v4l2"; + break; + } + printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); + return; + default: + type = "unknown"; + } + + switch (_IOC_DIR(cmd)) { + case _IOC_NONE: dir = "--"; break; + case _IOC_READ: dir = "r-"; break; + case _IOC_WRITE: dir = "-w"; break; + case _IOC_READ | _IOC_WRITE: dir = "rw"; break; + default: dir = "*ERR*"; break; + } + printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", + type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); +} +EXPORT_SYMBOL(v4l_printk_ioctl); + +/* + * helper function -- handles userspace copying for ioctl arguments + */ + +#ifdef __OLD_VIDIOC_ +static unsigned int +video_fix_command(unsigned int cmd) +{ + switch (cmd) { + case VIDIOC_OVERLAY_OLD: + cmd = VIDIOC_OVERLAY; + break; + case VIDIOC_S_PARM_OLD: + cmd = VIDIOC_S_PARM; + break; + case VIDIOC_S_CTRL_OLD: + cmd = VIDIOC_S_CTRL; + break; + case VIDIOC_G_AUDIO_OLD: + cmd = VIDIOC_G_AUDIO; + break; + case VIDIOC_G_AUDOUT_OLD: + cmd = VIDIOC_G_AUDOUT; + break; + case VIDIOC_CROPCAP_OLD: + cmd = VIDIOC_CROPCAP; + break; + } + return cmd; +} +#endif + +/* + * Obsolete usercopy function - Should be removed soon + */ +int +video_usercopy(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg, + int (*func)(struct inode *inode, struct file *file, + unsigned int cmd, void *arg)) +{ + char sbuf[128]; + void *mbuf = NULL; + void *parg = NULL; + int err = -EINVAL; + int is_ext_ctrl; + size_t ctrls_size = 0; + void __user *user_ptr = NULL; + +#ifdef __OLD_VIDIOC_ + cmd = video_fix_command(cmd); +#endif + is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || + cmd == VIDIOC_TRY_EXT_CTRLS); + + /* Copy arguments into temp kernel buffer */ + switch (_IOC_DIR(cmd)) { + case _IOC_NONE: + parg = NULL; + break; + case _IOC_READ: + case _IOC_WRITE: + case (_IOC_WRITE | _IOC_READ): + if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { + parg = sbuf; + } else { + /* too big to allocate from stack */ + mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); + if (NULL == mbuf) + return -ENOMEM; + parg = mbuf; + } + + err = -EFAULT; + if (_IOC_DIR(cmd) & _IOC_WRITE) + if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) + goto out; + break; + } + if (is_ext_ctrl) { + struct v4l2_ext_controls *p = parg; + + /* In case of an error, tell the caller that it wasn't + a specific control that caused it. */ + p->error_idx = p->count; + user_ptr = (void __user *)p->controls; + if (p->count) { + ctrls_size = sizeof(struct v4l2_ext_control) * p->count; + /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ + mbuf = kmalloc(ctrls_size, GFP_KERNEL); + err = -ENOMEM; + if (NULL == mbuf) + goto out_ext_ctrl; + err = -EFAULT; + if (copy_from_user(mbuf, user_ptr, ctrls_size)) + goto out_ext_ctrl; + p->controls = mbuf; + } + } + + /* call driver */ + err = func(inode, file, cmd, parg); + if (err == -ENOIOCTLCMD) + err = -EINVAL; + if (is_ext_ctrl) { + struct v4l2_ext_controls *p = parg; + + p->controls = (void *)user_ptr; + if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) + err = -EFAULT; + goto out_ext_ctrl; + } + if (err < 0) + goto out; + +out_ext_ctrl: + /* Copy results into user buffer */ + switch (_IOC_DIR(cmd)) { + case _IOC_READ: + case (_IOC_WRITE | _IOC_READ): + if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) + err = -EFAULT; + break; + } + +out: + kfree(mbuf); + return err; +} +EXPORT_SYMBOL(video_usercopy); + +static void dbgbuf(unsigned int cmd, struct video_device *vfd, + struct v4l2_buffer *p) +{ + struct v4l2_timecode *tc = &p->timecode; + + dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " + "bytesused=%d, flags=0x%08d, " + "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx, length=%d\n", + p->timestamp.tv_sec / 3600, + (int)(p->timestamp.tv_sec / 60) % 60, + (int)(p->timestamp.tv_sec % 60), + p->timestamp.tv_usec, + p->index, + prt_names(p->type, v4l2_type_names), + p->bytesused, p->flags, + p->field, p->sequence, + prt_names(p->memory, v4l2_memory_names), + p->m.userptr, p->length); + dbgarg2("timecode=%02d:%02d:%02d type=%d, " + "flags=0x%08d, frames=%d, userbits=0x%08x\n", + tc->hours, tc->minutes, tc->seconds, + tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); +} + +static inline void dbgrect(struct video_device *vfd, char *s, + struct v4l2_rect *r) +{ + dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, + r->width, r->height); +}; + +static inline void v4l_print_pix_fmt(struct video_device *vfd, + struct v4l2_pix_format *fmt) +{ + dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " + "bytesperline=%d sizeimage=%d, colorspace=%d\n", + fmt->width, fmt->height, + (fmt->pixelformat & 0xff), + (fmt->pixelformat >> 8) & 0xff, + (fmt->pixelformat >> 16) & 0xff, + (fmt->pixelformat >> 24) & 0xff, + prt_names(fmt->field, v4l2_field_names), + fmt->bytesperline, fmt->sizeimage, fmt->colorspace); +}; + +static inline void v4l_print_ext_ctrls(unsigned int cmd, + struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) +{ + __u32 i; + + if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) + return; + dbgarg(cmd, ""); + printk(KERN_CONT "class=0x%x", c->ctrl_class); + for (i = 0; i < c->count; i++) { + if (show_vals) + printk(KERN_CONT " id/val=0x%x/0x%x", + c->controls[i].id, c->controls[i].value); + else + printk(KERN_CONT " id=0x%x", c->controls[i].id); + } + printk(KERN_CONT "\n"); +}; + +static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) +{ + __u32 i; + + /* zero the reserved fields */ + c->reserved[0] = c->reserved[1] = 0; + for (i = 0; i < c->count; i++) { + c->controls[i].reserved2[0] = 0; + c->controls[i].reserved2[1] = 0; + } + /* V4L2_CID_PRIVATE_BASE cannot be used as control class + when using extended controls. + Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL + is it allowed for backwards compatibility. + */ + if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) + return 0; + /* Check that all controls are from the same control class. */ + for (i = 0; i < c->count; i++) { + if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { + c->error_idx = i; + return 0; + } + } + return 1; +} + +static int check_fmt(struct video_device *vfd, enum v4l2_buf_type type) +{ + switch (type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (vfd->vidioc_try_fmt_vid_cap) + return 0; + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + if (vfd->vidioc_try_fmt_vid_overlay) + return 0; + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_try_fmt_vid_out) + return 0; + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_try_fmt_vid_out_overlay) + return 0; + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_vbi_cap) + return 0; + break; + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_vbi_out) + return 0; + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_sliced_vbi_cap) + return 0; + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_sliced_vbi_out) + return 0; + break; + case V4L2_BUF_TYPE_PRIVATE: + if (vfd->vidioc_try_fmt_type_private) + return 0; + break; + } + return -EINVAL; +} + +static int __video_do_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + struct video_device *vfd = video_devdata(file); + void *fh = file->private_data; + int ret = -EINVAL; + + if ((vfd->debug & V4L2_DEBUG_IOCTL) && + !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { + v4l_print_ioctl(vfd->name, cmd); + printk(KERN_CONT "\n"); + } + +#ifdef CONFIG_VIDEO_V4L1_COMPAT + /*********************************************************** + Handles calls to the obsoleted V4L1 API + Due to the nature of VIDIOCGMBUF, each driver that supports + V4L1 should implement its own handler for this ioctl. + ***********************************************************/ + + /* --- streaming capture ------------------------------------- */ + if (cmd == VIDIOCGMBUF) { + struct video_mbuf *p = arg; + + memset(p, 0, sizeof(*p)); + + if (!vfd->vidiocgmbuf) + return ret; + ret = vfd->vidiocgmbuf(file, fh, p); + if (!ret) + dbgarg(cmd, "size=%d, frames=%d, offsets=0x%08lx\n", + p->size, p->frames, + (unsigned long)p->offsets); + return ret; + } + + /******************************************************** + All other V4L1 calls are handled by v4l1_compat module. + Those calls will be translated into V4L2 calls, and + __video_do_ioctl will be called again, with one or more + V4L2 ioctls. + ********************************************************/ + if (_IOC_TYPE(cmd) == 'v') + return v4l_compat_translate_ioctl(inode, file, cmd, arg, + __video_do_ioctl); +#endif + + switch (cmd) { + /* --- capabilities ------------------------------------------ */ + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *cap = (struct v4l2_capability *)arg; + memset(cap, 0, sizeof(*cap)); + + if (!vfd->vidioc_querycap) + break; + + ret = vfd->vidioc_querycap(file, fh, cap); + if (!ret) + dbgarg(cmd, "driver=%s, card=%s, bus=%s, " + "version=0x%08x, " + "capabilities=0x%08x\n", + cap->driver, cap->card, cap->bus_info, + cap->version, + cap->capabilities); + break; + } + + /* --- priority ------------------------------------------ */ + case VIDIOC_G_PRIORITY: + { + enum v4l2_priority *p = arg; + + if (!vfd->vidioc_g_priority) + break; + ret = vfd->vidioc_g_priority(file, fh, p); + if (!ret) + dbgarg(cmd, "priority is %d\n", *p); + break; + } + case VIDIOC_S_PRIORITY: + { + enum v4l2_priority *p = arg; + + if (!vfd->vidioc_s_priority) + break; + dbgarg(cmd, "setting priority to %d\n", *p); + ret = vfd->vidioc_s_priority(file, fh, *p); + break; + } + + /* --- capture ioctls ---------------------------------------- */ + case VIDIOC_ENUM_FMT: + { + struct v4l2_fmtdesc *f = arg; + enum v4l2_buf_type type; + unsigned int index; + + index = f->index; + type = f->type; + memset(f, 0, sizeof(*f)); + f->index = index; + f->type = type; + + switch (type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (vfd->vidioc_enum_fmt_vid_cap) + ret = vfd->vidioc_enum_fmt_vid_cap(file, fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + if (vfd->vidioc_enum_fmt_vid_overlay) + ret = vfd->vidioc_enum_fmt_vid_overlay(file, + fh, f); + break; +#if 1 + /* V4L2_BUF_TYPE_VBI_CAPTURE should not support VIDIOC_ENUM_FMT + * according to the spec. The bttv and saa7134 drivers support + * it though, so just warn that this is deprecated and will be + * removed in the near future. */ + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_enum_fmt_vbi_cap) { + printk(KERN_WARNING "vidioc_enum_fmt_vbi_cap will be removed in 2.6.28!\n"); + ret = vfd->vidioc_enum_fmt_vbi_cap(file, fh, f); + } + break; +#endif + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_enum_fmt_vid_out) + ret = vfd->vidioc_enum_fmt_vid_out(file, fh, f); + break; + case V4L2_BUF_TYPE_PRIVATE: + if (vfd->vidioc_enum_fmt_type_private) + ret = vfd->vidioc_enum_fmt_type_private(file, + fh, f); + break; + default: + break; + } + if (!ret) + dbgarg(cmd, "index=%d, type=%d, flags=%d, " + "pixelformat=%c%c%c%c, description='%s'\n", + f->index, f->type, f->flags, + (f->pixelformat & 0xff), + (f->pixelformat >> 8) & 0xff, + (f->pixelformat >> 16) & 0xff, + (f->pixelformat >> 24) & 0xff, + f->description); + break; + } + case VIDIOC_G_FMT: + { + struct v4l2_format *f = (struct v4l2_format *)arg; + + memset(f->fmt.raw_data, 0, sizeof(f->fmt.raw_data)); + + /* FIXME: Should be one dump per type */ + dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (vfd->vidioc_g_fmt_vid_cap) + ret = vfd->vidioc_g_fmt_vid_cap(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + if (vfd->vidioc_g_fmt_vid_overlay) + ret = vfd->vidioc_g_fmt_vid_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_g_fmt_vid_out) + ret = vfd->vidioc_g_fmt_vid_out(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_g_fmt_vid_out_overlay) + ret = vfd->vidioc_g_fmt_vid_out_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_g_fmt_vbi_cap) + ret = vfd->vidioc_g_fmt_vbi_cap(file, fh, f); + break; + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_g_fmt_vbi_out) + ret = vfd->vidioc_g_fmt_vbi_out(file, fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_g_fmt_sliced_vbi_cap) + ret = vfd->vidioc_g_fmt_sliced_vbi_cap(file, + fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_g_fmt_sliced_vbi_out) + ret = vfd->vidioc_g_fmt_sliced_vbi_out(file, + fh, f); + break; + case V4L2_BUF_TYPE_PRIVATE: + if (vfd->vidioc_g_fmt_type_private) + ret = vfd->vidioc_g_fmt_type_private(file, + fh, f); + break; + } + + break; + } + case VIDIOC_S_FMT: + { + struct v4l2_format *f = (struct v4l2_format *)arg; + + /* FIXME: Should be one dump per type */ + dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + v4l_print_pix_fmt(vfd, &f->fmt.pix); + if (vfd->vidioc_s_fmt_vid_cap) + ret = vfd->vidioc_s_fmt_vid_cap(file, fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + if (vfd->vidioc_s_fmt_vid_overlay) + ret = vfd->vidioc_s_fmt_vid_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + v4l_print_pix_fmt(vfd, &f->fmt.pix); + if (vfd->vidioc_s_fmt_vid_out) + ret = vfd->vidioc_s_fmt_vid_out(file, fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_s_fmt_vid_out_overlay) + ret = vfd->vidioc_s_fmt_vid_out_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_s_fmt_vbi_cap) + ret = vfd->vidioc_s_fmt_vbi_cap(file, fh, f); + break; + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_s_fmt_vbi_out) + ret = vfd->vidioc_s_fmt_vbi_out(file, fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_s_fmt_sliced_vbi_cap) + ret = vfd->vidioc_s_fmt_sliced_vbi_cap(file, + fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_s_fmt_sliced_vbi_out) + ret = vfd->vidioc_s_fmt_sliced_vbi_out(file, + fh, f); + break; + case V4L2_BUF_TYPE_PRIVATE: + if (vfd->vidioc_s_fmt_type_private) + ret = vfd->vidioc_s_fmt_type_private(file, + fh, f); + break; + } + break; + } + case VIDIOC_TRY_FMT: + { + struct v4l2_format *f = (struct v4l2_format *)arg; + + /* FIXME: Should be one dump per type */ + dbgarg(cmd, "type=%s\n", prt_names(f->type, + v4l2_type_names)); + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (vfd->vidioc_try_fmt_vid_cap) + ret = vfd->vidioc_try_fmt_vid_cap(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + if (vfd->vidioc_try_fmt_vid_overlay) + ret = vfd->vidioc_try_fmt_vid_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_try_fmt_vid_out) + ret = vfd->vidioc_try_fmt_vid_out(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_try_fmt_vid_out_overlay) + ret = vfd->vidioc_try_fmt_vid_out_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_vbi_cap) + ret = vfd->vidioc_try_fmt_vbi_cap(file, fh, f); + break; + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_vbi_out) + ret = vfd->vidioc_try_fmt_vbi_out(file, fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_sliced_vbi_cap) + ret = vfd->vidioc_try_fmt_sliced_vbi_cap(file, + fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_sliced_vbi_out) + ret = vfd->vidioc_try_fmt_sliced_vbi_out(file, + fh, f); + break; + case V4L2_BUF_TYPE_PRIVATE: + if (vfd->vidioc_try_fmt_type_private) + ret = vfd->vidioc_try_fmt_type_private(file, + fh, f); + break; + } + + break; + } + /* FIXME: Those buf reqs could be handled here, + with some changes on videobuf to allow its header to be included at + videodev2.h or being merged at videodev2. + */ + case VIDIOC_REQBUFS: + { + struct v4l2_requestbuffers *p = arg; + + if (!vfd->vidioc_reqbufs) + break; + ret = check_fmt(vfd, p->type); + if (ret) + break; + + ret = vfd->vidioc_reqbufs(file, fh, p); + dbgarg(cmd, "count=%d, type=%s, memory=%s\n", + p->count, + prt_names(p->type, v4l2_type_names), + prt_names(p->memory, v4l2_memory_names)); + break; + } + case VIDIOC_QUERYBUF: + { + struct v4l2_buffer *p = arg; + + if (!vfd->vidioc_querybuf) + break; + ret = check_fmt(vfd, p->type); + if (ret) + break; + + ret = vfd->vidioc_querybuf(file, fh, p); + if (!ret) + dbgbuf(cmd, vfd, p); + break; + } + case VIDIOC_QBUF: + { + struct v4l2_buffer *p = arg; + + if (!vfd->vidioc_qbuf) + break; + ret = check_fmt(vfd, p->type); + if (ret) + break; + + ret = vfd->vidioc_qbuf(file, fh, p); + if (!ret) + dbgbuf(cmd, vfd, p); + break; + } + case VIDIOC_DQBUF: + { + struct v4l2_buffer *p = arg; + + if (!vfd->vidioc_dqbuf) + break; + ret = check_fmt(vfd, p->type); + if (ret) + break; + + ret = vfd->vidioc_dqbuf(file, fh, p); + if (!ret) + dbgbuf(cmd, vfd, p); + break; + } + case VIDIOC_OVERLAY: + { + int *i = arg; + + if (!vfd->vidioc_overlay) + break; + dbgarg(cmd, "value=%d\n", *i); + ret = vfd->vidioc_overlay(file, fh, *i); + break; + } + case VIDIOC_G_FBUF: + { + struct v4l2_framebuffer *p = arg; + + if (!vfd->vidioc_g_fbuf) + break; + ret = vfd->vidioc_g_fbuf(file, fh, arg); + if (!ret) { + dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", + p->capability, p->flags, + (unsigned long)p->base); + v4l_print_pix_fmt(vfd, &p->fmt); + } + break; + } + case VIDIOC_S_FBUF: + { + struct v4l2_framebuffer *p = arg; + + if (!vfd->vidioc_s_fbuf) + break; + dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", + p->capability, p->flags, (unsigned long)p->base); + v4l_print_pix_fmt(vfd, &p->fmt); + ret = vfd->vidioc_s_fbuf(file, fh, arg); + break; + } + case VIDIOC_STREAMON: + { + enum v4l2_buf_type i = *(int *)arg; + + if (!vfd->vidioc_streamon) + break; + dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); + ret = vfd->vidioc_streamon(file, fh, i); + break; + } + case VIDIOC_STREAMOFF: + { + enum v4l2_buf_type i = *(int *)arg; + + if (!vfd->vidioc_streamoff) + break; + dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); + ret = vfd->vidioc_streamoff(file, fh, i); + break; + } + /* ---------- tv norms ---------- */ + case VIDIOC_ENUMSTD: + { + struct v4l2_standard *p = arg; + v4l2_std_id id = vfd->tvnorms, curr_id = 0; + unsigned int index = p->index, i, j = 0; + const char *descr = ""; + + /* Return norm array in a canonical way */ + for (i = 0; i <= index && id; i++) { + /* last std value in the standards array is 0, so this + while always ends there since (id & 0) == 0. */ + while ((id & standards[j].std) != standards[j].std) + j++; + curr_id = standards[j].std; + descr = standards[j].descr; + j++; + if (curr_id == 0) + break; + if (curr_id != V4L2_STD_PAL && + curr_id != V4L2_STD_SECAM && + curr_id != V4L2_STD_NTSC) + id &= ~curr_id; + } + if (i <= index) + return -EINVAL; + + v4l2_video_std_construct(p, curr_id, descr); + p->index = index; + + dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " + "framelines=%d\n", p->index, + (unsigned long long)p->id, p->name, + p->frameperiod.numerator, + p->frameperiod.denominator, + p->framelines); + + ret = 0; + break; + } + case VIDIOC_G_STD: + { + v4l2_std_id *id = arg; + + ret = 0; + /* Calls the specific handler */ + if (vfd->vidioc_g_std) + ret = vfd->vidioc_g_std(file, fh, id); + else + *id = vfd->current_norm; + + if (!ret) + dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); + break; + } + case VIDIOC_S_STD: + { + v4l2_std_id *id = arg, norm; + + dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); + + norm = (*id) & vfd->tvnorms; + if (vfd->tvnorms && !norm) /* Check if std is supported */ + break; + + /* Calls the specific handler */ + if (vfd->vidioc_s_std) + ret = vfd->vidioc_s_std(file, fh, &norm); + else + ret = -EINVAL; + + /* Updates standard information */ + if (ret >= 0) + vfd->current_norm = norm; + break; + } + case VIDIOC_QUERYSTD: + { + v4l2_std_id *p = arg; + + if (!vfd->vidioc_querystd) + break; + ret = vfd->vidioc_querystd(file, fh, arg); + if (!ret) + dbgarg(cmd, "detected std=%08Lx\n", + (unsigned long long)*p); + break; + } + /* ------ input switching ---------- */ + /* FIXME: Inputs can be handled inside videodev2 */ + case VIDIOC_ENUMINPUT: + { + struct v4l2_input *p = arg; + int i = p->index; + + if (!vfd->vidioc_enum_input) + break; + memset(p, 0, sizeof(*p)); + p->index = i; + + ret = vfd->vidioc_enum_input(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "audioset=%d, " + "tuner=%d, std=%08Lx, status=%d\n", + p->index, p->name, p->type, p->audioset, + p->tuner, + (unsigned long long)p->std, + p->status); + break; + } + case VIDIOC_G_INPUT: + { + unsigned int *i = arg; + + if (!vfd->vidioc_g_input) + break; + ret = vfd->vidioc_g_input(file, fh, i); + if (!ret) + dbgarg(cmd, "value=%d\n", *i); + break; + } + case VIDIOC_S_INPUT: + { + unsigned int *i = arg; + + if (!vfd->vidioc_s_input) + break; + dbgarg(cmd, "value=%d\n", *i); + ret = vfd->vidioc_s_input(file, fh, *i); + break; + } + + /* ------ output switching ---------- */ + case VIDIOC_ENUMOUTPUT: + { + struct v4l2_output *p = arg; + int i = p->index; + + if (!vfd->vidioc_enum_output) + break; + memset(p, 0, sizeof(*p)); + p->index = i; + + ret = vfd->vidioc_enum_output(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "audioset=0x%x, " + "modulator=%d, std=0x%08Lx\n", + p->index, p->name, p->type, p->audioset, + p->modulator, (unsigned long long)p->std); + break; + } + case VIDIOC_G_OUTPUT: + { + unsigned int *i = arg; + + if (!vfd->vidioc_g_output) + break; + ret = vfd->vidioc_g_output(file, fh, i); + if (!ret) + dbgarg(cmd, "value=%d\n", *i); + break; + } + case VIDIOC_S_OUTPUT: + { + unsigned int *i = arg; + + if (!vfd->vidioc_s_output) + break; + dbgarg(cmd, "value=%d\n", *i); + ret = vfd->vidioc_s_output(file, fh, *i); + break; + } + + /* --- controls ---------------------------------------------- */ + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *p = arg; + + if (!vfd->vidioc_queryctrl) + break; + ret = vfd->vidioc_queryctrl(file, fh, p); + if (!ret) + dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " + "step=%d, default=%d, flags=0x%08x\n", + p->id, p->type, p->name, + p->minimum, p->maximum, + p->step, p->default_value, p->flags); + else + dbgarg(cmd, "id=0x%x\n", p->id); + break; + } + case VIDIOC_G_CTRL: + { + struct v4l2_control *p = arg; + + if (vfd->vidioc_g_ctrl) + ret = vfd->vidioc_g_ctrl(file, fh, p); + else if (vfd->vidioc_g_ext_ctrls) { + struct v4l2_ext_controls ctrls; + struct v4l2_ext_control ctrl; + + ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); + ctrls.count = 1; + ctrls.controls = &ctrl; + ctrl.id = p->id; + ctrl.value = p->value; + if (check_ext_ctrls(&ctrls, 1)) { + ret = vfd->vidioc_g_ext_ctrls(file, fh, &ctrls); + if (ret == 0) + p->value = ctrl.value; + } + } else + break; + if (!ret) + dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); + else + dbgarg(cmd, "id=0x%x\n", p->id); + break; + } + case VIDIOC_S_CTRL: + { + struct v4l2_control *p = arg; + struct v4l2_ext_controls ctrls; + struct v4l2_ext_control ctrl; + + if (!vfd->vidioc_s_ctrl && !vfd->vidioc_s_ext_ctrls) + break; + + dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); + + if (vfd->vidioc_s_ctrl) { + ret = vfd->vidioc_s_ctrl(file, fh, p); + break; + } + if (!vfd->vidioc_s_ext_ctrls) + break; + + ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); + ctrls.count = 1; + ctrls.controls = &ctrl; + ctrl.id = p->id; + ctrl.value = p->value; + if (check_ext_ctrls(&ctrls, 1)) + ret = vfd->vidioc_s_ext_ctrls(file, fh, &ctrls); + break; + } + case VIDIOC_G_EXT_CTRLS: + { + struct v4l2_ext_controls *p = arg; + + p->error_idx = p->count; + if (!vfd->vidioc_g_ext_ctrls) + break; + if (check_ext_ctrls(p, 0)) + ret = vfd->vidioc_g_ext_ctrls(file, fh, p); + v4l_print_ext_ctrls(cmd, vfd, p, !ret); + break; + } + case VIDIOC_S_EXT_CTRLS: + { + struct v4l2_ext_controls *p = arg; + + p->error_idx = p->count; + if (!vfd->vidioc_s_ext_ctrls) + break; + v4l_print_ext_ctrls(cmd, vfd, p, 1); + if (check_ext_ctrls(p, 0)) + ret = vfd->vidioc_s_ext_ctrls(file, fh, p); + break; + } + case VIDIOC_TRY_EXT_CTRLS: + { + struct v4l2_ext_controls *p = arg; + + p->error_idx = p->count; + if (!vfd->vidioc_try_ext_ctrls) + break; + v4l_print_ext_ctrls(cmd, vfd, p, 1); + if (check_ext_ctrls(p, 0)) + ret = vfd->vidioc_try_ext_ctrls(file, fh, p); + break; + } + case VIDIOC_QUERYMENU: + { + struct v4l2_querymenu *p = arg; + + if (!vfd->vidioc_querymenu) + break; + ret = vfd->vidioc_querymenu(file, fh, p); + if (!ret) + dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", + p->id, p->index, p->name); + else + dbgarg(cmd, "id=0x%x, index=%d\n", + p->id, p->index); + break; + } + /* --- audio ---------------------------------------------- */ + case VIDIOC_ENUMAUDIO: + { + struct v4l2_audio *p = arg; + + if (!vfd->vidioc_enumaudio) + break; + ret = vfd->vidioc_enumaudio(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, p->name, + p->capability, p->mode); + else + dbgarg(cmd, "index=%d\n", p->index); + break; + } + case VIDIOC_G_AUDIO: + { + struct v4l2_audio *p = arg; + __u32 index = p->index; + + if (!vfd->vidioc_g_audio) + break; + + memset(p, 0, sizeof(*p)); + p->index = index; + ret = vfd->vidioc_g_audio(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, + p->name, p->capability, p->mode); + else + dbgarg(cmd, "index=%d\n", p->index); + break; + } + case VIDIOC_S_AUDIO: + { + struct v4l2_audio *p = arg; + + if (!vfd->vidioc_s_audio) + break; + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, p->name, + p->capability, p->mode); + ret = vfd->vidioc_s_audio(file, fh, p); + break; + } + case VIDIOC_ENUMAUDOUT: + { + struct v4l2_audioout *p = arg; + + if (!vfd->vidioc_enumaudout) + break; + dbgarg(cmd, "Enum for index=%d\n", p->index); + ret = vfd->vidioc_enumaudout(file, fh, p); + if (!ret) + dbgarg2("index=%d, name=%s, capability=%d, " + "mode=%d\n", p->index, p->name, + p->capability, p->mode); + break; + } + case VIDIOC_G_AUDOUT: + { + struct v4l2_audioout *p = arg; + + if (!vfd->vidioc_g_audout) + break; + dbgarg(cmd, "Enum for index=%d\n", p->index); + ret = vfd->vidioc_g_audout(file, fh, p); + if (!ret) + dbgarg2("index=%d, name=%s, capability=%d, " + "mode=%d\n", p->index, p->name, + p->capability, p->mode); + break; + } + case VIDIOC_S_AUDOUT: + { + struct v4l2_audioout *p = arg; + + if (!vfd->vidioc_s_audout) + break; + dbgarg(cmd, "index=%d, name=%s, capability=%d, " + "mode=%d\n", p->index, p->name, + p->capability, p->mode); + + ret = vfd->vidioc_s_audout(file, fh, p); + break; + } + case VIDIOC_G_MODULATOR: + { + struct v4l2_modulator *p = arg; + + if (!vfd->vidioc_g_modulator) + break; + ret = vfd->vidioc_g_modulator(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, " + "capability=%d, rangelow=%d," + " rangehigh=%d, txsubchans=%d\n", + p->index, p->name, p->capability, + p->rangelow, p->rangehigh, + p->txsubchans); + break; + } + case VIDIOC_S_MODULATOR: + { + struct v4l2_modulator *p = arg; + + if (!vfd->vidioc_s_modulator) + break; + dbgarg(cmd, "index=%d, name=%s, capability=%d, " + "rangelow=%d, rangehigh=%d, txsubchans=%d\n", + p->index, p->name, p->capability, p->rangelow, + p->rangehigh, p->txsubchans); + ret = vfd->vidioc_s_modulator(file, fh, p); + break; + } + case VIDIOC_G_CROP: + { + struct v4l2_crop *p = arg; + + if (!vfd->vidioc_g_crop) + break; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + ret = vfd->vidioc_g_crop(file, fh, p); + if (!ret) + dbgrect(vfd, "", &p->c); + break; + } + case VIDIOC_S_CROP: + { + struct v4l2_crop *p = arg; + + if (!vfd->vidioc_s_crop) + break; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + dbgrect(vfd, "", &p->c); + ret = vfd->vidioc_s_crop(file, fh, p); + break; + } + case VIDIOC_CROPCAP: + { + struct v4l2_cropcap *p = arg; + + /*FIXME: Should also show v4l2_fract pixelaspect */ + if (!vfd->vidioc_cropcap) + break; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + ret = vfd->vidioc_cropcap(file, fh, p); + if (!ret) { + dbgrect(vfd, "bounds ", &p->bounds); + dbgrect(vfd, "defrect ", &p->defrect); + } + break; + } + case VIDIOC_G_JPEGCOMP: + { + struct v4l2_jpegcompression *p = arg; + + if (!vfd->vidioc_g_jpegcomp) + break; + ret = vfd->vidioc_g_jpegcomp(file, fh, p); + if (!ret) + dbgarg(cmd, "quality=%d, APPn=%d, " + "APP_len=%d, COM_len=%d, " + "jpeg_markers=%d\n", + p->quality, p->APPn, p->APP_len, + p->COM_len, p->jpeg_markers); + break; + } + case VIDIOC_S_JPEGCOMP: + { + struct v4l2_jpegcompression *p = arg; + + if (!vfd->vidioc_g_jpegcomp) + break; + dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " + "COM_len=%d, jpeg_markers=%d\n", + p->quality, p->APPn, p->APP_len, + p->COM_len, p->jpeg_markers); + ret = vfd->vidioc_s_jpegcomp(file, fh, p); + break; + } + case VIDIOC_G_ENC_INDEX: + { + struct v4l2_enc_idx *p = arg; + + if (!vfd->vidioc_g_enc_index) + break; + ret = vfd->vidioc_g_enc_index(file, fh, p); + if (!ret) + dbgarg(cmd, "entries=%d, entries_cap=%d\n", + p->entries, p->entries_cap); + break; + } + case VIDIOC_ENCODER_CMD: + { + struct v4l2_encoder_cmd *p = arg; + + if (!vfd->vidioc_encoder_cmd) + break; + memset(&p->raw, 0, sizeof(p->raw)); + ret = vfd->vidioc_encoder_cmd(file, fh, p); + if (!ret) + dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); + break; + } + case VIDIOC_TRY_ENCODER_CMD: + { + struct v4l2_encoder_cmd *p = arg; + + if (!vfd->vidioc_try_encoder_cmd) + break; + memset(&p->raw, 0, sizeof(p->raw)); + ret = vfd->vidioc_try_encoder_cmd(file, fh, p); + if (!ret) + dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); + break; + } + case VIDIOC_G_PARM: + { + struct v4l2_streamparm *p = arg; + __u32 type = p->type; + + memset(p, 0, sizeof(*p)); + p->type = type; + + if (vfd->vidioc_g_parm) { + ret = vfd->vidioc_g_parm(file, fh, p); + } else { + struct v4l2_standard s; + + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + v4l2_video_std_construct(&s, vfd->current_norm, + v4l2_norm_to_name(vfd->current_norm)); + + p->parm.capture.timeperframe = s.frameperiod; + ret = 0; + } + + dbgarg(cmd, "type=%d\n", p->type); + break; + } + case VIDIOC_S_PARM: + { + struct v4l2_streamparm *p = arg; + + if (!vfd->vidioc_s_parm) + break; + dbgarg(cmd, "type=%d\n", p->type); + ret = vfd->vidioc_s_parm(file, fh, p); + break; + } + case VIDIOC_G_TUNER: + { + struct v4l2_tuner *p = arg; + __u32 index = p->index; + + if (!vfd->vidioc_g_tuner) + break; + + memset(p, 0, sizeof(*p)); + p->index = index; + + ret = vfd->vidioc_g_tuner(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "capability=0x%x, rangelow=%d, " + "rangehigh=%d, signal=%d, afc=%d, " + "rxsubchans=0x%x, audmode=%d\n", + p->index, p->name, p->type, + p->capability, p->rangelow, + p->rangehigh, p->signal, p->afc, + p->rxsubchans, p->audmode); + break; + } + case VIDIOC_S_TUNER: + { + struct v4l2_tuner *p = arg; + + if (!vfd->vidioc_s_tuner) + break; + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "capability=0x%x, rangelow=%d, " + "rangehigh=%d, signal=%d, afc=%d, " + "rxsubchans=0x%x, audmode=%d\n", + p->index, p->name, p->type, + p->capability, p->rangelow, + p->rangehigh, p->signal, p->afc, + p->rxsubchans, p->audmode); + ret = vfd->vidioc_s_tuner(file, fh, p); + break; + } + case VIDIOC_G_FREQUENCY: + { + struct v4l2_frequency *p = arg; + + if (!vfd->vidioc_g_frequency) + break; + + memset(p->reserved, 0, sizeof(p->reserved)); + + ret = vfd->vidioc_g_frequency(file, fh, p); + if (!ret) + dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", + p->tuner, p->type, p->frequency); + break; + } + case VIDIOC_S_FREQUENCY: + { + struct v4l2_frequency *p = arg; + + if (!vfd->vidioc_s_frequency) + break; + dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", + p->tuner, p->type, p->frequency); + ret = vfd->vidioc_s_frequency(file, fh, p); + break; + } + case VIDIOC_G_SLICED_VBI_CAP: + { + struct v4l2_sliced_vbi_cap *p = arg; + __u32 type = p->type; + + if (!vfd->vidioc_g_sliced_vbi_cap) + break; + memset(p, 0, sizeof(*p)); + p->type = type; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + ret = vfd->vidioc_g_sliced_vbi_cap(file, fh, p); + if (!ret) + dbgarg2("service_set=%d\n", p->service_set); + break; + } + case VIDIOC_LOG_STATUS: + { + if (!vfd->vidioc_log_status) + break; + ret = vfd->vidioc_log_status(file, fh); + break; + } +#ifdef CONFIG_VIDEO_ADV_DEBUG + case VIDIOC_DBG_G_REGISTER: + { + struct v4l2_register *p = arg; + + if (!capable(CAP_SYS_ADMIN)) + ret = -EPERM; + else if (vfd->vidioc_g_register) + ret = vfd->vidioc_g_register(file, fh, p); + break; + } + case VIDIOC_DBG_S_REGISTER: + { + struct v4l2_register *p = arg; + + if (!capable(CAP_SYS_ADMIN)) + ret = -EPERM; + else if (vfd->vidioc_s_register) + ret = vfd->vidioc_s_register(file, fh, p); + break; + } +#endif + case VIDIOC_G_CHIP_IDENT: + { + struct v4l2_chip_ident *p = arg; + + if (!vfd->vidioc_g_chip_ident) + break; + ret = vfd->vidioc_g_chip_ident(file, fh, p); + if (!ret) + dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); + break; + } + default: + { + if (!vfd->vidioc_default) + break; + ret = vfd->vidioc_default(file, fh, cmd, arg); + break; + } + case VIDIOC_S_HW_FREQ_SEEK: + { + struct v4l2_hw_freq_seek *p = arg; + + if (!vfd->vidioc_s_hw_freq_seek) + break; + dbgarg(cmd, + "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n", + p->tuner, p->type, p->seek_upward, p->wrap_around); + ret = vfd->vidioc_s_hw_freq_seek(file, fh, p); + break; + } + } /* switch */ + + if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { + if (ret < 0) { + v4l_print_ioctl(vfd->name, cmd); + printk(KERN_CONT " error %d\n", ret); + } + } + + return ret; +} + +int video_ioctl2(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + char sbuf[128]; + void *mbuf = NULL; + void *parg = NULL; + int err = -EINVAL; + int is_ext_ctrl; + size_t ctrls_size = 0; + void __user *user_ptr = NULL; + +#ifdef __OLD_VIDIOC_ + cmd = video_fix_command(cmd); +#endif + is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || + cmd == VIDIOC_TRY_EXT_CTRLS); + + /* Copy arguments into temp kernel buffer */ + switch (_IOC_DIR(cmd)) { + case _IOC_NONE: + parg = NULL; + break; + case _IOC_READ: + case _IOC_WRITE: + case (_IOC_WRITE | _IOC_READ): + if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { + parg = sbuf; + } else { + /* too big to allocate from stack */ + mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); + if (NULL == mbuf) + return -ENOMEM; + parg = mbuf; + } + + err = -EFAULT; + if (_IOC_DIR(cmd) & _IOC_WRITE) + if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) + goto out; + break; + } + + if (is_ext_ctrl) { + struct v4l2_ext_controls *p = parg; + + /* In case of an error, tell the caller that it wasn't + a specific control that caused it. */ + p->error_idx = p->count; + user_ptr = (void __user *)p->controls; + if (p->count) { + ctrls_size = sizeof(struct v4l2_ext_control) * p->count; + /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ + mbuf = kmalloc(ctrls_size, GFP_KERNEL); + err = -ENOMEM; + if (NULL == mbuf) + goto out_ext_ctrl; + err = -EFAULT; + if (copy_from_user(mbuf, user_ptr, ctrls_size)) + goto out_ext_ctrl; + p->controls = mbuf; + } + } + + /* Handles IOCTL */ + err = __video_do_ioctl(inode, file, cmd, parg); + if (err == -ENOIOCTLCMD) + err = -EINVAL; + if (is_ext_ctrl) { + struct v4l2_ext_controls *p = parg; + + p->controls = (void *)user_ptr; + if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) + err = -EFAULT; + goto out_ext_ctrl; + } + if (err < 0) + goto out; + +out_ext_ctrl: + /* Copy results into user buffer */ + switch (_IOC_DIR(cmd)) { + case _IOC_READ: + case (_IOC_WRITE | _IOC_READ): + if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) + err = -EFAULT; + break; + } + +out: + kfree(mbuf); + return err; +} +EXPORT_SYMBOL(video_ioctl2); diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 059b01c11dc1..e4b3a006c71e 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/video/w9966.c b/drivers/media/video/w9966.c index 33f702698a56..a63e11f8399b 100644 --- a/drivers/media/video/w9966.c +++ b/drivers/media/video/w9966.c @@ -59,6 +59,7 @@ #include #include #include +#include #include /*#define DEBUG*/ /* Undef me for production */ diff --git a/drivers/media/video/zc0301/zc0301.h b/drivers/media/video/zc0301/zc0301.h index 7bbab541a309..b1b5cceb4baa 100644 --- a/drivers/media/video/zc0301/zc0301.h +++ b/drivers/media/video/zc0301/zc0301.h @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c index c0675921fe20..e1e1b19a0aed 100644 --- a/drivers/media/video/zoran_driver.c +++ b/drivers/media/video/zoran_driver.c @@ -71,6 +71,7 @@ #include #include +#include #include "videocodec.h" #include diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c index 485df2e36132..ea5265c22983 100644 --- a/drivers/media/video/zr364xx.c +++ b/drivers/media/video/zr364xx.c @@ -35,6 +35,7 @@ #include #include #include +#include /* Version Information */ diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h index 89c442eb8849..1d104096619c 100644 --- a/include/media/saa7146_vv.h +++ b/include/media/saa7146_vv.h @@ -2,6 +2,7 @@ #define __SAA7146_VV__ #include +#include #include #include diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 020d05758bd8..8bbb526a5a24 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -79,6 +79,21 @@ /* ------------------------------------------------------------------------- */ +/* Priority helper functions */ + +struct v4l2_prio_state { + atomic_t prios[4]; +}; +int v4l2_prio_init(struct v4l2_prio_state *global); +int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, + enum v4l2_priority new); +int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local); +int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local); +enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global); +int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local); + +/* ------------------------------------------------------------------------- */ + /* Control helper functions */ int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl, diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 185372ffa270..ad62d322e178 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -39,43 +39,6 @@ #define VFL_TYPE_RADIO 2 #define VFL_TYPE_VTX 3 -/* Video standard functions */ -extern const char *v4l2_norm_to_name(v4l2_std_id id); -extern int v4l2_video_std_construct(struct v4l2_standard *vs, - int id, const char *name); -/* Prints the ioctl in a human-readable format */ -extern void v4l_printk_ioctl(unsigned int cmd); - -/* prority handling */ -struct v4l2_prio_state { - atomic_t prios[4]; -}; -int v4l2_prio_init(struct v4l2_prio_state *global); -int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, - enum v4l2_priority new); -int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local); -int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local); -enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global); -int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local); - -/* names for fancy debug output */ -extern const char *v4l2_field_names[]; -extern const char *v4l2_type_names[]; - -/* Compatibility layer interface -- v4l1-compat module */ -typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file, - unsigned int cmd, void *arg); -#ifdef CONFIG_VIDEO_V4L1_COMPAT -int v4l_compat_translate_ioctl(struct inode *inode, struct file *file, - int cmd, void *arg, v4l2_kioctl driver_ioctl); -#else -#define v4l_compat_translate_ioctl(inode,file,cmd,arg,ioctl) -EINVAL -#endif - -/* 32 Bits compatibility layer for 64 bits processors */ -extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd, - unsigned long arg); - /* * Newer version of video_device, handled by videodev2.c * This version moves redundant code from video device code to @@ -352,20 +315,12 @@ extern int video_register_device(struct video_device *vfd, int type, int nr); int video_register_device_index(struct video_device *vfd, int type, int nr, int index); void video_unregister_device(struct video_device *); -extern int video_ioctl2(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); /* helper functions to alloc / release struct video_device, the later can be used for video_device->release() */ struct video_device *video_device_alloc(void); void video_device_release(struct video_device *vfd); -/* Include support for obsoleted stuff */ -extern int video_usercopy(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg, - int (*func)(struct inode *inode, struct file *file, - unsigned int cmd, void *arg)); - #ifdef CONFIG_VIDEO_V4L1_COMPAT #include diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h new file mode 100644 index 000000000000..685b1b62a054 --- /dev/null +++ b/include/media/v4l2-ioctl.h @@ -0,0 +1,57 @@ +/* + * + * V 4 L 2 D R I V E R H E L P E R A P I + * + * Moved from videodev2.h + * + * Some commonly needed functions for drivers (v4l2-common.o module) + */ +#ifndef _V4L2_IOCTL_H +#define _V4L2_IOCTL_H + +#include +#include +#include +#include +#include /* need __user */ +#ifdef CONFIG_VIDEO_V4L1_COMPAT +#include +#else +#include +#endif + +/* Video standard functions */ +extern const char *v4l2_norm_to_name(v4l2_std_id id); +extern int v4l2_video_std_construct(struct v4l2_standard *vs, + int id, const char *name); +/* Prints the ioctl in a human-readable format */ +extern void v4l_printk_ioctl(unsigned int cmd); + +/* names for fancy debug output */ +extern const char *v4l2_field_names[]; +extern const char *v4l2_type_names[]; + +/* Compatibility layer interface -- v4l1-compat module */ +typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file, + unsigned int cmd, void *arg); +#ifdef CONFIG_VIDEO_V4L1_COMPAT +int v4l_compat_translate_ioctl(struct inode *inode, struct file *file, + int cmd, void *arg, v4l2_kioctl driver_ioctl); +#else +#define v4l_compat_translate_ioctl(inode, file, cmd, arg, ioctl) (-EINVAL) +#endif + +/* 32 Bits compatibility layer for 64 bits processors */ +extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd, + unsigned long arg); + +extern int video_ioctl2(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg); + +/* Include support for obsoleted stuff */ +extern int video_usercopy(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg, + int (*func)(struct inode *inode, struct file *file, + unsigned int cmd, void *arg)); + +#endif /* _V4L2_IOCTL_H */ -- cgit v1.2.3 From 2864462eaf027ff10c1df1ce57d3518332e9083c Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 20 Jul 2008 20:26:54 -0300 Subject: V4L/DVB (8434): Fix x86_64 compilation and move some macros to v4l2-ioctl.h Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/compat_ioctl32.c | 2 +- drivers/media/video/stradis.c | 1 + drivers/media/video/w9968cf.c | 1 + include/media/v4l2-common.h | 22 ---------------------- include/media/v4l2-ioctl.h | 21 +++++++++++++++++++++ 5 files changed, 24 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/drivers/media/video/compat_ioctl32.c b/drivers/media/video/compat_ioctl32.c index 54de0cd482e9..bd5d9de5a008 100644 --- a/drivers/media/video/compat_ioctl32.c +++ b/drivers/media/video/compat_ioctl32.c @@ -17,7 +17,7 @@ #include #include #include -#include +#include #ifdef CONFIG_COMPAT diff --git a/drivers/media/video/stradis.c b/drivers/media/video/stradis.c index c109511f21ea..6ace8923b797 100644 --- a/drivers/media/video/stradis.c +++ b/drivers/media/video/stradis.c @@ -43,6 +43,7 @@ #include #include #include +#include #include "saa7146.h" #include "saa7146reg.h" diff --git a/drivers/media/video/w9968cf.c b/drivers/media/video/w9968cf.c index 3f5a59dc5f8f..56bbeec542c5 100644 --- a/drivers/media/video/w9968cf.c +++ b/drivers/media/video/w9968cf.c @@ -42,6 +42,7 @@ #include #include #include +#include #include "w9968cf.h" #include "w9968cf_decoder.h" diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 8bbb526a5a24..07d3a9a575d1 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -28,12 +28,6 @@ #include -/* v4l debugging and diagnostics */ - -/* Debug bitmask flags to be used on V4L2 */ -#define V4L2_DEBUG_IOCTL 0x01 -#define V4L2_DEBUG_IOCTL_ARG 0x02 - /* Common printk constucts for v4l-i2c drivers. These macros create a unique prefix consisting of the driver name, the adapter number and the i2c address. */ @@ -61,22 +55,6 @@ v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \ } while (0) - -/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */ -#define v4l_print_ioctl(name, cmd) \ - do { \ - printk(KERN_DEBUG "%s: ", name); \ - v4l_printk_ioctl(cmd); \ - } while (0) - -/* Use this macro in I2C drivers where 'client' is the struct i2c_client - pointer */ -#define v4l_i2c_print_ioctl(client, cmd) \ - do { \ - v4l_client_printk(KERN_DEBUG, client, ""); \ - v4l_printk_ioctl(cmd); \ - } while (0) - /* ------------------------------------------------------------------------- */ /* Priority helper functions */ diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index 685b1b62a054..e319d1fffb82 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -20,6 +20,27 @@ #include #endif +/* v4l debugging and diagnostics */ + +/* Debug bitmask flags to be used on V4L2 */ +#define V4L2_DEBUG_IOCTL 0x01 +#define V4L2_DEBUG_IOCTL_ARG 0x02 + +/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */ +#define v4l_print_ioctl(name, cmd) \ + do { \ + printk(KERN_DEBUG "%s: ", name); \ + v4l_printk_ioctl(cmd); \ + } while (0) + +/* Use this macro in I2C drivers where 'client' is the struct i2c_client + pointer */ +#define v4l_i2c_print_ioctl(client, cmd) \ + do { \ + v4l_client_printk(KERN_DEBUG, client, ""); \ + v4l_printk_ioctl(cmd); \ + } while (0) + /* Video standard functions */ extern const char *v4l2_norm_to_name(v4l2_std_id id); extern int v4l2_video_std_construct(struct v4l2_standard *vs, -- cgit v1.2.3 From a5bf6190417cbbf80443a9f71c65b653e13e9982 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Thu, 10 Jul 2008 18:38:33 +0300 Subject: UBI: add ubi_sync() interface To flush MTD device caches. Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/kapi.c | 24 ++++++++++++++++++++++++ include/linux/mtd/ubi.h | 1 + 2 files changed, 25 insertions(+) (limited to 'include') diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index 51508832566d..e65c8e0bcd5d 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -632,3 +632,27 @@ int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum) return vol->eba_tbl[lnum] >= 0; } EXPORT_SYMBOL_GPL(ubi_is_mapped); + +/** + * ubi_sync - synchronize UBI device buffers. + * @ubi_num: UBI device to synchronize + * + * The underlying MTD device may cache data in hardware or in software. This + * function ensures the caches are flushed. Returns zero in case of success and + * a negative error code in case of failure. + */ +int ubi_sync(int ubi_num) +{ + struct ubi_device *ubi; + + ubi = ubi_get_device(ubi_num); + if (!ubi) + return -ENODEV; + + if (ubi->mtd->sync) + ubi->mtd->sync(ubi->mtd); + + ubi_put_device(ubi); + return 0; +} +EXPORT_SYMBOL_GPL(ubi_sync); diff --git a/include/linux/mtd/ubi.h b/include/linux/mtd/ubi.h index f71201d0f3e7..83302bbbddb4 100644 --- a/include/linux/mtd/ubi.h +++ b/include/linux/mtd/ubi.h @@ -152,6 +152,7 @@ int ubi_leb_erase(struct ubi_volume_desc *desc, int lnum); int ubi_leb_unmap(struct ubi_volume_desc *desc, int lnum); int ubi_leb_map(struct ubi_volume_desc *desc, int lnum, int dtype); int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum); +int ubi_sync(int ubi_num); /* * This function is the same as the 'ubi_leb_read()' function, but it does not -- cgit v1.2.3 From 85c6e6e28259e9b58b8984db536c45bc3161f40c Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Wed, 16 Jul 2008 10:25:56 +0300 Subject: UBI: amend commentaries Hch asked not to use "unit" for sub-systems, let it be so. Also some other commentaries modifications. Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/build.c | 2 +- drivers/mtd/ubi/debug.h | 6 +-- drivers/mtd/ubi/eba.c | 22 +++++------ drivers/mtd/ubi/io.c | 22 +++++------ drivers/mtd/ubi/scan.c | 28 +++++++------- drivers/mtd/ubi/scan.h | 19 +++++---- drivers/mtd/ubi/ubi-media.h | 23 +++++------ drivers/mtd/ubi/ubi.h | 37 +++++++++--------- drivers/mtd/ubi/wl.c | 94 ++++++++++++++++++++++----------------------- include/linux/mtd/ubi.h | 4 +- 10 files changed, 129 insertions(+), 128 deletions(-) (limited to 'include') diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index a5b19944eca8..27271fe32e02 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -524,7 +524,7 @@ out_si: } /** - * io_init - initialize I/O unit for a given UBI device. + * io_init - initialize I/O sub-system for a given UBI device. * @ubi: UBI device description object * * If @ubi->vid_hdr_offset or @ubi->leb_start is zero, default offsets are diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h index 8ea99d8c9e1f..7d8d77c31dfe 100644 --- a/drivers/mtd/ubi/debug.h +++ b/drivers/mtd/ubi/debug.h @@ -76,21 +76,21 @@ void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req); #endif /* CONFIG_MTD_UBI_DEBUG_MSG */ #ifdef CONFIG_MTD_UBI_DEBUG_MSG_EBA -/* Messages from the eraseblock association unit */ +/* Messages from the eraseblock association sub-system */ #define dbg_eba(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #else #define dbg_eba(fmt, ...) ({}) #endif #ifdef CONFIG_MTD_UBI_DEBUG_MSG_WL -/* Messages from the wear-leveling unit */ +/* Messages from the wear-leveling sub-system */ #define dbg_wl(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #else #define dbg_wl(fmt, ...) ({}) #endif #ifdef CONFIG_MTD_UBI_DEBUG_MSG_IO -/* Messages from the input/output unit */ +/* Messages from the input/output sub-system */ #define dbg_io(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #else #define dbg_io(fmt, ...) ({}) diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index 8dc488fc0cdf..613cd1e51648 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -19,20 +19,20 @@ */ /* - * The UBI Eraseblock Association (EBA) unit. + * The UBI Eraseblock Association (EBA) sub-system. * - * This unit is responsible for I/O to/from logical eraseblock. + * This sub-system is responsible for I/O to/from logical eraseblock. * * Although in this implementation the EBA table is fully kept and managed in * RAM, which assumes poor scalability, it might be (partially) maintained on * flash in future implementations. * - * The EBA unit implements per-logical eraseblock locking. Before accessing a - * logical eraseblock it is locked for reading or writing. The per-logical - * eraseblock locking is implemented by means of the lock tree. The lock tree - * is an RB-tree which refers all the currently locked logical eraseblocks. The - * lock tree elements are &struct ubi_ltree_entry objects. They are indexed by - * (@vol_id, @lnum) pairs. + * The EBA sub-system implements per-logical eraseblock locking. Before + * accessing a logical eraseblock it is locked for reading or writing. The + * per-logical eraseblock locking is implemented by means of the lock tree. The + * lock tree is an RB-tree which refers all the currently locked logical + * eraseblocks. The lock tree elements are &struct ubi_ltree_entry objects. + * They are indexed by (@vol_id, @lnum) pairs. * * EBA also maintains the global sequence counter which is incremented each * time a logical eraseblock is mapped to a physical eraseblock and it is @@ -1128,7 +1128,7 @@ out_unlock_leb: } /** - * ubi_eba_init_scan - initialize the EBA unit using scanning information. + * ubi_eba_init_scan - initialize the EBA sub-system using scanning information. * @ubi: UBI device description object * @si: scanning information * @@ -1143,7 +1143,7 @@ int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si) struct ubi_scan_leb *seb; struct rb_node *rb; - dbg_eba("initialize EBA unit"); + dbg_eba("initialize EBA sub-system"); spin_lock_init(&ubi->ltree_lock); mutex_init(&ubi->alc_mutex); @@ -1209,7 +1209,7 @@ int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si) ubi->rsvd_pebs += ubi->beb_rsvd_pebs; } - dbg_eba("EBA unit is initialized"); + dbg_eba("EBA sub-system is initialized"); return 0; out_free: diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 4ac11df7b048..561e7b2f96cb 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -20,15 +20,15 @@ */ /* - * UBI input/output unit. + * UBI input/output sub-system. * - * This unit provides a uniform way to work with all kinds of the underlying - * MTD devices. It also implements handy functions for reading and writing UBI - * headers. + * This sub-system provides a uniform way to work with all kinds of the + * underlying MTD devices. It also implements handy functions for reading and + * writing UBI headers. * * We are trying to have a paranoid mindset and not to trust to what we read - * from the flash media in order to be more secure and robust. So this unit - * validates every single header it reads from the flash media. + * from the flash media in order to be more secure and robust. So this + * sub-system validates every single header it reads from the flash media. * * Some words about how the eraseblock headers are stored. * @@ -79,11 +79,11 @@ * 512-byte chunks, we have to allocate one more buffer and copy our VID header * to offset 448 of this buffer. * - * The I/O unit does the following trick in order to avoid this extra copy. - * It always allocates a @ubi->vid_hdr_alsize bytes buffer for the VID header - * and returns a pointer to offset @ubi->vid_hdr_shift of this buffer. When the - * VID header is being written out, it shifts the VID header pointer back and - * writes the whole sub-page. + * The I/O sub-system does the following trick in order to avoid this extra + * copy. It always allocates a @ubi->vid_hdr_alsize bytes buffer for the VID + * header and returns a pointer to offset @ubi->vid_hdr_shift of this buffer. + * When the VID header is being written out, it shifts the VID header pointer + * back and writes the whole sub-page. */ #include diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c index 96d410e106ab..892c2ba49777 100644 --- a/drivers/mtd/ubi/scan.c +++ b/drivers/mtd/ubi/scan.c @@ -19,9 +19,9 @@ */ /* - * UBI scanning unit. + * UBI scanning sub-system. * - * This unit is responsible for scanning the flash media, checking UBI + * This sub-system is responsible for scanning the flash media, checking UBI * headers and providing complete information about the UBI flash image. * * The scanning information is represented by a &struct ubi_scan_info' object. @@ -103,7 +103,7 @@ static int add_to_list(struct ubi_scan_info *si, int pnum, int ec, * non-zero if an inconsistency was found and zero if not. * * Note, UBI does sanity check of everything it reads from the flash media. - * Most of the checks are done in the I/O unit. Here we check that the + * Most of the checks are done in the I/O sub-system. Here we check that the * information in the VID header is consistent to the information in other VID * headers of the same volume. */ @@ -256,8 +256,8 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb, * that versions that are close to %0xFFFFFFFF are less then * versions that are close to %0. * - * The UBI WL unit guarantees that the number of pending tasks - * is not greater then %0x7FFFFFFF. So, if the difference + * The UBI WL sub-system guarantees that the number of pending + * tasks is not greater then %0x7FFFFFFF. So, if the difference * between any two versions is greater or equivalent to * %0x7FFFFFFF, there was an overflow and the logical * eraseblock with lower version is actually newer then the one @@ -645,9 +645,9 @@ void ubi_scan_rm_volume(struct ubi_scan_info *si, struct ubi_scan_volume *sv) * * This function erases physical eraseblock 'pnum', and writes the erase * counter header to it. This function should only be used on UBI device - * initialization stages, when the EBA unit had not been yet initialized. This - * function returns zero in case of success and a negative error code in case - * of failure. + * initialization stages, when the EBA sub-system had not been yet initialized. + * This function returns zero in case of success and a negative error code in + * case of failure. */ int ubi_scan_erase_peb(struct ubi_device *ubi, const struct ubi_scan_info *si, int pnum, int ec) @@ -687,9 +687,10 @@ out_free: * @si: scanning information * * This function returns a free physical eraseblock. It is supposed to be - * called on the UBI initialization stages when the wear-leveling unit is not - * initialized yet. This function picks a physical eraseblocks from one of the - * lists, writes the EC header if it is needed, and removes it from the list. + * called on the UBI initialization stages when the wear-leveling sub-system is + * not initialized yet. This function picks a physical eraseblocks from one of + * the lists, writes the EC header if it is needed, and removes it from the + * list. * * This function returns scanning physical eraseblock information in case of * success and an error code in case of failure. @@ -764,8 +765,9 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum return err; else if (err) { /* - * FIXME: this is actually duty of the I/O unit to initialize - * this, but MTD does not provide enough information. + * FIXME: this is actually duty of the I/O sub-system to + * initialize this, but MTD does not provide enough + * information. */ si->bad_peb_count += 1; return 0; diff --git a/drivers/mtd/ubi/scan.h b/drivers/mtd/ubi/scan.h index 966b9b682a42..4e2e3cc0becd 100644 --- a/drivers/mtd/ubi/scan.h +++ b/drivers/mtd/ubi/scan.h @@ -59,16 +59,16 @@ struct ubi_scan_leb { * @leb_count: number of logical eraseblocks in this volume * @vol_type: volume type * @used_ebs: number of used logical eraseblocks in this volume (only for - * static volumes) + * static volumes) * @last_data_size: amount of data in the last logical eraseblock of this - * volume (always equivalent to the usable logical eraseblock size in case of - * dynamic volumes) + * volume (always equivalent to the usable logical eraseblock + * size in case of dynamic volumes) * @data_pad: how many bytes at the end of logical eraseblocks of this volume - * are not used (due to volume alignment) + * are not used (due to volume alignment) * @compat: compatibility flags of this volume * @rb: link in the volume RB-tree * @root: root of the RB-tree containing all the eraseblock belonging to this - * volume (&struct ubi_scan_leb objects) + * volume (&struct ubi_scan_leb objects) * * One object of this type is allocated for each volume during scanning. */ @@ -92,8 +92,8 @@ struct ubi_scan_volume { * @free: list of free physical eraseblocks * @erase: list of physical eraseblocks which have to be erased * @alien: list of physical eraseblocks which should not be used by UBI (e.g., + * those belonging to "preserve"-compatible internal volumes) * @bad_peb_count: count of bad physical eraseblocks - * those belonging to "preserve"-compatible internal volumes) * @vols_found: number of volumes found during scanning * @highest_vol_id: highest volume ID * @alien_peb_count: count of physical eraseblocks in the @alien list @@ -106,8 +106,8 @@ struct ubi_scan_volume { * @ec_count: a temporary variable used when calculating @mean_ec * * This data structure contains the result of scanning and may be used by other - * UBI units to build final UBI data structures, further error-recovery and so - * on. + * UBI sub-systems to build final UBI data structures, further error-recovery + * and so on. */ struct ubi_scan_info { struct rb_root volumes; @@ -132,8 +132,7 @@ struct ubi_device; struct ubi_vid_hdr; /* - * ubi_scan_move_to_list - move a physical eraseblock from the volume tree to a - * list. + * ubi_scan_move_to_list - move a PEB from the volume tree to a list. * * @sv: volume scanning information * @seb: scanning eraseblock infprmation diff --git a/drivers/mtd/ubi/ubi-media.h b/drivers/mtd/ubi/ubi-media.h index c3185d9fd048..26bb7af9787a 100644 --- a/drivers/mtd/ubi/ubi-media.h +++ b/drivers/mtd/ubi/ubi-media.h @@ -98,10 +98,11 @@ enum { * Compatibility constants used by internal volumes. * * @UBI_COMPAT_DELETE: delete this internal volume before anything is written - * to the flash + * to the flash * @UBI_COMPAT_RO: attach this device in read-only mode * @UBI_COMPAT_PRESERVE: preserve this internal volume - do not touch its - * physical eraseblocks, don't allow the wear-leveling unit to move them + * physical eraseblocks, don't allow the wear-leveling + * sub-system to move them * @UBI_COMPAT_REJECT: reject this UBI image */ enum { @@ -123,7 +124,7 @@ enum { * struct ubi_ec_hdr - UBI erase counter header. * @magic: erase counter header magic number (%UBI_EC_HDR_MAGIC) * @version: version of UBI implementation which is supposed to accept this - * UBI image + * UBI image * @padding1: reserved for future, zeroes * @ec: the erase counter * @vid_hdr_offset: where the VID header starts @@ -159,20 +160,20 @@ struct ubi_ec_hdr { * struct ubi_vid_hdr - on-flash UBI volume identifier header. * @magic: volume identifier header magic number (%UBI_VID_HDR_MAGIC) * @version: UBI implementation version which is supposed to accept this UBI - * image (%UBI_VERSION) + * image (%UBI_VERSION) * @vol_type: volume type (%UBI_VID_DYNAMIC or %UBI_VID_STATIC) * @copy_flag: if this logical eraseblock was copied from another physical - * eraseblock (for wear-leveling reasons) + * eraseblock (for wear-leveling reasons) * @compat: compatibility of this volume (%0, %UBI_COMPAT_DELETE, - * %UBI_COMPAT_IGNORE, %UBI_COMPAT_PRESERVE, or %UBI_COMPAT_REJECT) + * %UBI_COMPAT_IGNORE, %UBI_COMPAT_PRESERVE, or %UBI_COMPAT_REJECT) * @vol_id: ID of this volume * @lnum: logical eraseblock number * @leb_ver: version of this logical eraseblock (IMPORTANT: obsolete, to be - * removed, kept only for not breaking older UBI users) + * removed, kept only for not breaking older UBI users) * @data_size: how many bytes of data this logical eraseblock contains * @used_ebs: total number of used logical eraseblocks in this volume * @data_pad: how many bytes at the end of this physical eraseblock are not - * used + * used * @data_crc: CRC checksum of the data stored in this logical eraseblock * @padding1: reserved for future, zeroes * @sqnum: sequence number @@ -248,9 +249,9 @@ struct ubi_ec_hdr { * The @data_crc field contains the CRC checksum of the contents of the logical * eraseblock if this is a static volume. In case of dynamic volumes, it does * not contain the CRC checksum as a rule. The only exception is when the - * data of the physical eraseblock was moved by the wear-leveling unit, then - * the wear-leveling unit calculates the data CRC and stores it in the - * @data_crc field. And of course, the @copy_flag is %in this case. + * data of the physical eraseblock was moved by the wear-leveling sub-system, + * then the wear-leveling sub-system calculates the data CRC and stores it in + * the @data_crc field. And of course, the @copy_flag is %in this case. * * The @data_size field is used only for static volumes because UBI has to know * how many bytes of data are stored in this eraseblock. For dynamic volumes, diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 940f6b7deec3..1fc32c863b78 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -74,15 +74,15 @@ #define UBI_IO_RETRIES 3 /* - * Error codes returned by the I/O unit. + * Error codes returned by the I/O sub-system. * * UBI_IO_PEB_EMPTY: the physical eraseblock is empty, i.e. it contains only - * 0xFF bytes + * %0xFF bytes * UBI_IO_PEB_FREE: the physical eraseblock is free, i.e. it contains only a - * valid erase counter header, and the rest are %0xFF bytes + * valid erase counter header, and the rest are %0xFF bytes * UBI_IO_BAD_EC_HDR: the erase counter header is corrupted (bad magic or CRC) * UBI_IO_BAD_VID_HDR: the volume identifier header is corrupted (bad magic or - * CRC) + * CRC) * UBI_IO_BITFLIPS: bit-flips were detected and corrected */ enum { @@ -99,9 +99,9 @@ enum { * @ec: erase counter * @pnum: physical eraseblock number * - * This data structure is used in the WL unit. Each physical eraseblock has a - * corresponding &struct wl_entry object which may be kept in different - * RB-trees. See WL unit for details. + * This data structure is used in the WL sub-system. Each physical eraseblock + * has a corresponding &struct wl_entry object which may be kept in different + * RB-trees. See WL sub-system for details. */ struct ubi_wl_entry { struct rb_node rb; @@ -118,10 +118,10 @@ struct ubi_wl_entry { * @mutex: read/write mutex to implement read/write access serialization to * the (@vol_id, @lnum) logical eraseblock * - * This data structure is used in the EBA unit to implement per-LEB locking. - * When a logical eraseblock is being locked - corresponding + * This data structure is used in the EBA sub-system to implement per-LEB + * locking. When a logical eraseblock is being locked - corresponding * &struct ubi_ltree_entry object is inserted to the lock tree (@ubi->ltree). - * See EBA unit for details. + * See EBA sub-system for details. */ struct ubi_ltree_entry { struct rb_node rb; @@ -225,7 +225,7 @@ struct ubi_volume { #ifdef CONFIG_MTD_UBI_GLUEBI /* * Gluebi-related stuff may be compiled out. - * TODO: this should not be built into UBI but should be a separate + * Note: this should not be built into UBI but should be a separate * ubimtd driver which works on top of UBI and emulates MTD devices. */ struct ubi_volume_desc *gluebi_desc; @@ -235,8 +235,7 @@ struct ubi_volume { }; /** - * struct ubi_volume_desc - descriptor of the UBI volume returned when it is - * opened. + * struct ubi_volume_desc - UBI volume descriptor returned when it is opened. * @vol: reference to the corresponding volume description object * @mode: open mode (%UBI_READONLY, %UBI_READWRITE, or %UBI_EXCLUSIVE) */ @@ -316,11 +315,11 @@ struct ubi_wl_entry; * @ro_mode: if the UBI device is in read-only mode * @leb_size: logical eraseblock size * @leb_start: starting offset of logical eraseblocks within physical - * eraseblocks + * eraseblocks * @ec_hdr_alsize: size of the EC header aligned to @hdrs_min_io_size * @vid_hdr_alsize: size of the VID header aligned to @hdrs_min_io_size * @vid_hdr_offset: starting offset of the volume identifier header (might be - * unaligned) + * unaligned) * @vid_hdr_aloffset: starting offset of the VID header aligned to * @hdrs_min_io_size * @vid_hdr_shift: contains @vid_hdr_offset - @vid_hdr_aloffset @@ -356,16 +355,16 @@ struct ubi_device { struct mutex volumes_mutex; int max_ec; - /* TODO: mean_ec is not updated run-time, fix */ + /* Note, mean_ec is not updated run-time - should be fixed */ int mean_ec; - /* EBA unit's stuff */ + /* EBA sub-system's stuff */ unsigned long long global_sqnum; spinlock_t ltree_lock; struct rb_root ltree; struct mutex alc_mutex; - /* Wear-leveling unit's stuff */ + /* Wear-leveling sub-system's stuff */ struct rb_root used; struct rb_root free; struct rb_root scrub; @@ -388,7 +387,7 @@ struct ubi_device { int thread_enabled; char bgt_name[sizeof(UBI_BGT_NAME_PATTERN)+2]; - /* I/O unit's stuff */ + /* I/O sub-system's stuff */ long long flash_size; int peb_count; int peb_size; diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index cc8fe2934d2b..761952ba125b 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -19,22 +19,22 @@ */ /* - * UBI wear-leveling unit. + * UBI wear-leveling sub-system. * - * This unit is responsible for wear-leveling. It works in terms of physical - * eraseblocks and erase counters and knows nothing about logical eraseblocks, - * volumes, etc. From this unit's perspective all physical eraseblocks are of - * two types - used and free. Used physical eraseblocks are those that were - * "get" by the 'ubi_wl_get_peb()' function, and free physical eraseblocks are - * those that were put by the 'ubi_wl_put_peb()' function. + * This sub-system is responsible for wear-leveling. It works in terms of + * physical* eraseblocks and erase counters and knows nothing about logical + * eraseblocks, volumes, etc. From this sub-system's perspective all physical + * eraseblocks are of two types - used and free. Used physical eraseblocks are + * those that were "get" by the 'ubi_wl_get_peb()' function, and free physical + * eraseblocks are those that were put by the 'ubi_wl_put_peb()' function. * * Physical eraseblocks returned by 'ubi_wl_get_peb()' have only erase counter - * header. The rest of the physical eraseblock contains only 0xFF bytes. + * header. The rest of the physical eraseblock contains only %0xFF bytes. * - * When physical eraseblocks are returned to the WL unit by means of the + * When physical eraseblocks are returned to the WL sub-system by means of the * 'ubi_wl_put_peb()' function, they are scheduled for erasure. The erasure is * done asynchronously in context of the per-UBI device background thread, - * which is also managed by the WL unit. + * which is also managed by the WL sub-system. * * The wear-leveling is ensured by means of moving the contents of used * physical eraseblocks with low erase counter to free physical eraseblocks @@ -43,34 +43,36 @@ * The 'ubi_wl_get_peb()' function accepts data type hints which help to pick * an "optimal" physical eraseblock. For example, when it is known that the * physical eraseblock will be "put" soon because it contains short-term data, - * the WL unit may pick a free physical eraseblock with low erase counter, and - * so forth. + * the WL sub-system may pick a free physical eraseblock with low erase + * counter, and so forth. * - * If the WL unit fails to erase a physical eraseblock, it marks it as bad. + * If the WL sub-system fails to erase a physical eraseblock, it marks it as + * bad. * - * This unit is also responsible for scrubbing. If a bit-flip is detected in a - * physical eraseblock, it has to be moved. Technically this is the same as - * moving it for wear-leveling reasons. + * This sub-system is also responsible for scrubbing. If a bit-flip is detected + * in a physical eraseblock, it has to be moved. Technically this is the same + * as moving it for wear-leveling reasons. * - * As it was said, for the UBI unit all physical eraseblocks are either "free" - * or "used". Free eraseblock are kept in the @wl->free RB-tree, while used - * eraseblocks are kept in a set of different RB-trees: @wl->used, + * As it was said, for the UBI sub-system all physical eraseblocks are either + * "free" or "used". Free eraseblock are kept in the @wl->free RB-tree, while + * used eraseblocks are kept in a set of different RB-trees: @wl->used, * @wl->prot.pnum, @wl->prot.aec, and @wl->scrub. * * Note, in this implementation, we keep a small in-RAM object for each physical * eraseblock. This is surely not a scalable solution. But it appears to be good * enough for moderately large flashes and it is simple. In future, one may - * re-work this unit and make it more scalable. + * re-work this sub-system and make it more scalable. * - * At the moment this unit does not utilize the sequence number, which was - * introduced relatively recently. But it would be wise to do this because the - * sequence number of a logical eraseblock characterizes how old is it. For + * At the moment this sub-system does not utilize the sequence number, which + * was introduced relatively recently. But it would be wise to do this because + * the sequence number of a logical eraseblock characterizes how old is it. For * example, when we move a PEB with low erase counter, and we need to pick the * target PEB, we pick a PEB with the highest EC if our PEB is "old" and we * pick target PEB with an average EC if our PEB is not very "old". This is a - * room for future re-works of the WL unit. + * room for future re-works of the WL sub-system. * - * FIXME: looks too complex, should be simplified (later). + * Note: the stuff with protection trees looks too complex and is difficult to + * understand. Should be fixed. */ #include @@ -92,20 +94,21 @@ /* * Maximum difference between two erase counters. If this threshold is - * exceeded, the WL unit starts moving data from used physical eraseblocks with - * low erase counter to free physical eraseblocks with high erase counter. + * exceeded, the WL sub-system starts moving data from used physical + * eraseblocks with low erase counter to free physical eraseblocks with high + * erase counter. */ #define UBI_WL_THRESHOLD CONFIG_MTD_UBI_WL_THRESHOLD /* - * When a physical eraseblock is moved, the WL unit has to pick the target + * When a physical eraseblock is moved, the WL sub-system has to pick the target * physical eraseblock to move to. The simplest way would be just to pick the * one with the highest erase counter. But in certain workloads this could lead * to an unlimited wear of one or few physical eraseblock. Indeed, imagine a * situation when the picked physical eraseblock is constantly erased after the * data is written to it. So, we have a constant which limits the highest erase - * counter of the free physical eraseblock to pick. Namely, the WL unit does - * not pick eraseblocks with erase counter greater then the lowest erase + * counter of the free physical eraseblock to pick. Namely, the WL sub-system + * does not pick eraseblocks with erase counter greater then the lowest erase * counter plus %WL_FREE_MAX_DIFF. */ #define WL_FREE_MAX_DIFF (2*UBI_WL_THRESHOLD) @@ -123,11 +126,11 @@ * @abs_ec: the absolute erase counter value when the protection ends * @e: the wear-leveling entry of the physical eraseblock under protection * - * When the WL unit returns a physical eraseblock, the physical eraseblock is - * protected from being moved for some "time". For this reason, the physical - * eraseblock is not directly moved from the @wl->free tree to the @wl->used - * tree. There is one more tree in between where this physical eraseblock is - * temporarily stored (@wl->prot). + * When the WL sub-system returns a physical eraseblock, the physical + * eraseblock is protected from being moved for some "time". For this reason, + * the physical eraseblock is not directly moved from the @wl->free tree to the + * @wl->used tree. There is one more tree in between where this physical + * eraseblock is temporarily stored (@wl->prot). * * All this protection stuff is needed because: * o we don't want to move physical eraseblocks just after we have given them @@ -175,7 +178,6 @@ struct ubi_wl_prot_entry { * @list: a link in the list of pending works * @func: worker function * @priv: private data of the worker function - * * @e: physical eraseblock to erase * @torture: if the physical eraseblock has to be tortured * @@ -1136,7 +1138,7 @@ out_ro: } /** - * ubi_wl_put_peb - return a physical eraseblock to the wear-leveling unit. + * ubi_wl_put_peb - return a PEB to the wear-leveling sub-system. * @ubi: UBI device description object * @pnum: physical eraseblock to return * @torture: if this physical eraseblock has to be tortured @@ -1175,11 +1177,11 @@ retry: /* * User is putting the physical eraseblock which was selected * as the target the data is moved to. It may happen if the EBA - * unit already re-mapped the LEB in 'ubi_eba_copy_leb()' but - * the WL unit has not put the PEB to the "used" tree yet, but - * it is about to do this. So we just set a flag which will - * tell the WL worker that the PEB is not needed anymore and - * should be scheduled for erasure. + * sub-system already re-mapped the LEB in 'ubi_eba_copy_leb()' + * but the WL sub-system has not put the PEB to the "used" tree + * yet, but it is about to do this. So we just set a flag which + * will tell the WL worker that the PEB is not needed anymore + * and should be scheduled for erasure. */ dbg_wl("PEB %d is the target of data moving", pnum); ubi_assert(!ubi->move_to_put); @@ -1425,8 +1427,7 @@ static void cancel_pending(struct ubi_device *ubi) } /** - * ubi_wl_init_scan - initialize the wear-leveling unit using scanning - * information. + * ubi_wl_init_scan - initialize the WL sub-system using scanning information. * @ubi: UBI device description object * @si: scanning information * @@ -1583,13 +1584,12 @@ static void protection_trees_destroy(struct ubi_device *ubi) } /** - * ubi_wl_close - close the wear-leveling unit. + * ubi_wl_close - close the wear-leveling sub-system. * @ubi: UBI device description object */ void ubi_wl_close(struct ubi_device *ubi) { - dbg_wl("close the UBI wear-leveling unit"); - + dbg_wl("close the WL sub-system"); cancel_pending(ubi); protection_trees_destroy(ubi); tree_destroy(&ubi->used); diff --git a/include/linux/mtd/ubi.h b/include/linux/mtd/ubi.h index 83302bbbddb4..6316fafe5c2a 100644 --- a/include/linux/mtd/ubi.h +++ b/include/linux/mtd/ubi.h @@ -45,13 +45,13 @@ enum { * @size: how many physical eraseblocks are reserved for this volume * @used_bytes: how many bytes of data this volume contains * @used_ebs: how many physical eraseblocks of this volume actually contain any - * data + * data * @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME) * @corrupted: non-zero if the volume is corrupted (static volumes only) * @upd_marker: non-zero if the volume has update marker set * @alignment: volume alignment * @usable_leb_size: how many bytes are available in logical eraseblocks of - * this volume + * this volume * @name_len: volume name length * @name: volume name * @cdev: UBI volume character device major and minor numbers -- cgit v1.2.3 From f40ac9cdf6991287f19bdafe9b0752ee40137908 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Sun, 13 Jul 2008 21:47:47 +0300 Subject: UBI: implement multiple volumes rename Quite useful ioctl which allows to make atomic system upgrades. The idea belongs to Richard Titmuss Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/build.c | 1 + drivers/mtd/ubi/cdev.c | 188 +++++++++++++++++++++++++++++++++++++++++++++++- drivers/mtd/ubi/ubi.h | 33 ++++++++- drivers/mtd/ubi/vmt.c | 57 ++++++++++++--- drivers/mtd/ubi/vtbl.c | 51 +++++++++++++ include/mtd/ubi-user.h | 60 +++++++++++++++- 6 files changed, 375 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 7210e1da1fcb..4418a2369b56 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -806,6 +806,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) mutex_init(&ubi->buf_mutex); mutex_init(&ubi->ckvol_mutex); + mutex_init(&ubi->mult_mutex); mutex_init(&ubi->volumes_mutex); spin_lock_init(&ubi->volumes_lock); diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 7c19918cc914..bc8199c6a9f5 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -605,6 +605,166 @@ static int verify_rsvol_req(const struct ubi_device *ubi, return 0; } +/** + * rename_volumes - rename UBI volumes. + * @ubi: UBI device description object + * @req: volumes re-name request + * + * This is a helper function for the volume re-name IOCTL which validates the + * the request, opens the volume and calls corresponding volumes management + * function. Returns zero in case of success and a negative error code in case + * of failure. + */ +static int rename_volumes(struct ubi_device *ubi, + struct ubi_rnvol_req *req) +{ + int i, n, err; + struct list_head rename_list; + struct ubi_rename_entry *re, *re1; + + if (req->count < 0 || req->count > UBI_MAX_RNVOL) + return -EINVAL; + + if (req->count == 0) + return 0; + + /* Validate volume IDs and names in the request */ + for (i = 0; i < req->count; i++) { + if (req->ents[i].vol_id < 0 || + req->ents[i].vol_id >= ubi->vtbl_slots) + return -EINVAL; + if (req->ents[i].name_len < 0) + return -EINVAL; + if (req->ents[i].name_len > UBI_VOL_NAME_MAX) + return -ENAMETOOLONG; + req->ents[i].name[req->ents[i].name_len] = '\0'; + n = strlen(req->ents[i].name); + if (n != req->ents[i].name_len) + err = -EINVAL; + } + + /* Make sure volume IDs and names are unique */ + for (i = 0; i < req->count - 1; i++) { + for (n = i + 1; n < req->count; n++) { + if (req->ents[i].vol_id == req->ents[n].vol_id) { + dbg_err("duplicated volume id %d", + req->ents[i].vol_id); + return -EINVAL; + } + if (!strcmp(req->ents[i].name, req->ents[n].name)) { + dbg_err("duplicated volume name \"%s\"", + req->ents[i].name); + return -EINVAL; + } + } + } + + /* Create the re-name list */ + INIT_LIST_HEAD(&rename_list); + for (i = 0; i < req->count; i++) { + int vol_id = req->ents[i].vol_id; + int name_len = req->ents[i].name_len; + const char *name = req->ents[i].name; + + re = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL); + if (!re) { + err = -ENOMEM; + goto out_free; + } + + re->desc = ubi_open_volume(ubi->ubi_num, vol_id, UBI_EXCLUSIVE); + if (IS_ERR(re->desc)) { + err = PTR_ERR(re->desc); + dbg_err("cannot open volume %d, error %d", vol_id, err); + kfree(re); + goto out_free; + } + + /* Skip this re-naming if the name does not really change */ + if (re->desc->vol->name_len == name_len && + !memcmp(re->desc->vol->name, name, name_len)) { + ubi_close_volume(re->desc); + kfree(re); + continue; + } + + re->new_name_len = name_len; + memcpy(re->new_name, name, name_len); + list_add_tail(&re->list, &rename_list); + dbg_msg("will rename volume %d from \"%s\" to \"%s\"", + vol_id, re->desc->vol->name, name); + } + + if (list_empty(&rename_list)) + return 0; + + /* Find out the volumes which have to be removed */ + list_for_each_entry(re, &rename_list, list) { + struct ubi_volume_desc *desc; + int no_remove_needed = 0; + + /* + * Volume @re->vol_id is going to be re-named to + * @re->new_name, while its current name is @name. If a volume + * with name @re->new_name currently exists, it has to be + * removed, unless it is also re-named in the request (@req). + */ + list_for_each_entry(re1, &rename_list, list) { + if (re->new_name_len == re1->desc->vol->name_len && + !memcmp(re->new_name, re1->desc->vol->name, + re1->desc->vol->name_len)) { + no_remove_needed = 1; + break; + } + } + + if (no_remove_needed) + continue; + + /* + * It seems we need to remove volume with name @re->new_name, + * if it exists. + */ + desc = ubi_open_volume_nm(ubi->ubi_num, re->new_name, UBI_EXCLUSIVE); + if (IS_ERR(desc)) { + err = PTR_ERR(desc); + if (err == -ENODEV) + /* Re-naming into a non-existing volume name */ + continue; + + /* The volume exists but busy, or an error occurred */ + dbg_err("cannot open volume \"%s\", error %d", + re->new_name, err); + goto out_free; + } + + re = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL); + if (!re) { + err = -ENOMEM; + ubi_close_volume(desc); + goto out_free; + } + + re->remove = 1; + re->desc = desc; + list_add(&re->list, &rename_list); + dbg_msg("will remove volume %d, name \"%s\"", + re->desc->vol->vol_id, re->desc->vol->name); + } + + mutex_lock(&ubi->volumes_mutex); + err = ubi_rename_volumes(ubi, &rename_list); + mutex_unlock(&ubi->volumes_mutex); + +out_free: + list_for_each_entry_safe(re, re1, &rename_list, list) { + ubi_close_volume(re->desc); + list_del(&re->list); + kfree(re); + } + return err; +} + static int ubi_cdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { @@ -670,7 +830,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, } mutex_lock(&ubi->volumes_mutex); - err = ubi_remove_volume(desc); + err = ubi_remove_volume(desc, 0); mutex_unlock(&ubi->volumes_mutex); /* @@ -717,6 +877,32 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, break; } + /* Re-name volumes command */ + case UBI_IOCRNVOL: + { + struct ubi_rnvol_req *req; + + dbg_msg("re-name volumes"); + req = kmalloc(sizeof(struct ubi_rnvol_req), GFP_KERNEL); + if (!req) { + err = -ENOMEM; + break; + }; + + err = copy_from_user(req, argp, sizeof(struct ubi_rnvol_req)); + if (err) { + err = -EFAULT; + kfree(req); + break; + } + + mutex_lock(&ubi->mult_mutex); + err = rename_volumes(ubi, req); + mutex_unlock(&ubi->mult_mutex); + kfree(req); + break; + } + default: err = -ENOTTY; break; diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 1fc32c863b78..274c67916b34 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -131,6 +131,27 @@ struct ubi_ltree_entry { struct rw_semaphore mutex; }; +/** + * struct ubi_rename_entry - volume re-name description data structure. + * @new_name_len: new volume name length + * @new_name: new volume name + * @remove: if not zero, this volume should be removed, not re-named + * @desc: descriptor of the volume + * @list: links re-name entries into a list + * + * This data structure is utilized in the multiple volume re-name code. Namely, + * UBI first creates a list of &struct ubi_rename_entry objects from the + * &struct ubi_rnvol_req request object, and then utilizes this list to do all + * the job. + */ +struct ubi_rename_entry { + int new_name_len; + char new_name[UBI_VOL_NAME_MAX + 1]; + int remove; + struct ubi_volume_desc *desc; + struct list_head list; +}; + struct ubi_volume_desc; /** @@ -206,7 +227,7 @@ struct ubi_volume { int alignment; int data_pad; int name_len; - char name[UBI_VOL_NAME_MAX+1]; + char name[UBI_VOL_NAME_MAX + 1]; int upd_ebs; int ch_lnum; @@ -272,7 +293,7 @@ struct ubi_wl_entry; * @vtbl_size: size of the volume table in bytes * @vtbl: in-RAM volume table copy * @volumes_mutex: protects on-flash volume table and serializes volume - * changes, like creation, deletion, update, resize + * changes, like creation, deletion, update, re-size and re-name * * @max_ec: current highest erase counter value * @mean_ec: current mean erase counter value @@ -330,6 +351,8 @@ struct ubi_wl_entry; * @peb_buf1: a buffer of PEB size used for different purposes * @peb_buf2: another buffer of PEB size used for different purposes * @buf_mutex: proptects @peb_buf1 and @peb_buf2 + * @ckvol_mutex: serializes static volume checking when opening + * @mult_mutex: serializes operations on multiple volumes, like re-nameing * @dbg_peb_buf: buffer of PEB size used for debugging * @dbg_buf_mutex: proptects @dbg_peb_buf */ @@ -410,6 +433,7 @@ struct ubi_device { void *peb_buf2; struct mutex buf_mutex; struct mutex ckvol_mutex; + struct mutex mult_mutex; #ifdef CONFIG_MTD_UBI_DEBUG void *dbg_peb_buf; struct mutex dbg_buf_mutex; @@ -426,12 +450,15 @@ extern struct mutex ubi_devices_mutex; /* vtbl.c */ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, struct ubi_vtbl_record *vtbl_rec); +int ubi_vtbl_rename_volumes(struct ubi_device *ubi, + struct list_head *rename_list); int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si); /* vmt.c */ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req); -int ubi_remove_volume(struct ubi_volume_desc *desc); +int ubi_remove_volume(struct ubi_volume_desc *desc, int no_vtbl); int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs); +int ubi_rename_volumes(struct ubi_device *ubi, struct list_head *rename_list); int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol); void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol); diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 2cd886a5adac..4be4014c70df 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -402,13 +402,14 @@ out_unlock: /** * ubi_remove_volume - remove volume. * @desc: volume descriptor + * @no_vtbl: do not change volume table if not zero * * This function removes volume described by @desc. The volume has to be opened * in "exclusive" mode. Returns zero in case of success and a negative error * code in case of failure. The caller has to have the @ubi->volumes_mutex * locked. */ -int ubi_remove_volume(struct ubi_volume_desc *desc) +int ubi_remove_volume(struct ubi_volume_desc *desc, int no_vtbl) { struct ubi_volume *vol = desc->vol; struct ubi_device *ubi = vol->ubi; @@ -437,9 +438,11 @@ int ubi_remove_volume(struct ubi_volume_desc *desc) if (err) goto out_err; - err = ubi_change_vtbl_record(ubi, vol_id, NULL); - if (err) - goto out_err; + if (!no_vtbl) { + err = ubi_change_vtbl_record(ubi, vol_id, NULL); + if (err) + goto out_err; + } for (i = 0; i < vol->reserved_pebs; i++) { err = ubi_eba_unmap_leb(ubi, vol, i); @@ -465,7 +468,8 @@ int ubi_remove_volume(struct ubi_volume_desc *desc) ubi->vol_count -= 1; spin_unlock(&ubi->volumes_lock); - err = paranoid_check_volumes(ubi); + if (!no_vtbl) + err = paranoid_check_volumes(ubi); return err; out_err: @@ -601,6 +605,44 @@ out_free: return err; } +/** + * ubi_rename_volumes - re-name UBI volumes. + * @ubi: UBI device description object + * @renam_list: list of &struct ubi_rename_entry objects + * + * This function re-names or removes volumes specified in the re-name list. + * Returns zero in case of success and a negative error code in case of + * failure. + */ +int ubi_rename_volumes(struct ubi_device *ubi, struct list_head *rename_list) +{ + int err; + struct ubi_rename_entry *re; + + err = ubi_vtbl_rename_volumes(ubi, rename_list); + if (err) + return err; + + list_for_each_entry(re, rename_list, list) { + if (re->remove) { + err = ubi_remove_volume(re->desc, 1); + if (err) + break; + } else { + struct ubi_volume *vol = re->desc->vol; + + spin_lock(&ubi->volumes_lock); + vol->name_len = re->new_name_len; + memcpy(vol->name, re->new_name, re->new_name_len + 1); + spin_unlock(&ubi->volumes_lock); + } + } + + if (!err) + paranoid_check_volumes(ubi); + return err; +} + /** * ubi_add_volume - add volume. * @ubi: UBI device description object @@ -826,10 +868,9 @@ static int paranoid_check_volume(struct ubi_device *ubi, int vol_id) fail: ubi_err("paranoid check failed for volume %d", vol_id); - if (vol) { + if (vol) ubi_dbg_dump_vol_info(vol); - ubi_dbg_dump_vtbl_record(&ubi->vtbl[vol_id], vol_id); - } + ubi_dbg_dump_vtbl_record(&ubi->vtbl[vol_id], vol_id); spin_unlock(&ubi->volumes_lock); return -EINVAL; } diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index 05fb72fd268f..23c5376234b2 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -114,6 +114,57 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, return 0; } +/** + * ubi_vtbl_rename_volumes - rename UBI volumes in the volume table. + * @ubi: UBI device description object + * @renam_list: list of &struct ubi_rename_entry objects + * + * This function re-names multiple volumes specified in @req in the volume + * table. Returns zero in case of success and a negative error code in case of + * failure. + */ +int ubi_vtbl_rename_volumes(struct ubi_device *ubi, + struct list_head *rename_list) +{ + int i, err; + struct ubi_rename_entry *re; + struct ubi_volume *layout_vol; + + list_for_each_entry(re, rename_list, list) { + uint32_t crc; + struct ubi_volume *vol = re->desc->vol; + struct ubi_vtbl_record *vtbl_rec = &ubi->vtbl[vol->vol_id]; + + if (re->remove) { + memcpy(vtbl_rec, &empty_vtbl_record, + sizeof(struct ubi_vtbl_record)); + continue; + } + + vtbl_rec->name_len = cpu_to_be16(re->new_name_len); + memcpy(vtbl_rec->name, re->new_name, re->new_name_len); + memset(vtbl_rec->name + re->new_name_len, 0, + UBI_VOL_NAME_MAX + 1 - re->new_name_len); + crc = crc32(UBI_CRC32_INIT, vtbl_rec, + UBI_VTBL_RECORD_SIZE_CRC); + vtbl_rec->crc = cpu_to_be32(crc); + } + + layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)]; + for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) { + err = ubi_eba_unmap_leb(ubi, layout_vol, i); + if (err) + return err; + + err = ubi_eba_write_leb(ubi, layout_vol, i, ubi->vtbl, 0, + ubi->vtbl_size, UBI_LONGTERM); + if (err) + return err; + } + + return 0; +} + /** * vtbl_check - check if volume table is not corrupted and contains sensible * data. diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h index a7421f130cc0..e8e57c3dfcdb 100644 --- a/include/mtd/ubi-user.h +++ b/include/mtd/ubi-user.h @@ -58,6 +58,13 @@ * device should be used. A &struct ubi_rsvol_req object has to be properly * filled and a pointer to it has to be passed to the IOCTL. * + * UBI volumes re-name + * ~~~~~~~~~~~~~~~~~~~ + * + * To re-name several volumes atomically at one go, the %UBI_IOCRNVOL command + * of the UBI character device should be used. A &struct ubi_rnvol_req object + * has to be properly filled and a pointer to it has to be passed to the IOCTL. + * * UBI volume update * ~~~~~~~~~~~~~~~~~ * @@ -104,6 +111,8 @@ #define UBI_IOCRMVOL _IOW(UBI_IOC_MAGIC, 1, int32_t) /* Re-size an UBI volume */ #define UBI_IOCRSVOL _IOW(UBI_IOC_MAGIC, 2, struct ubi_rsvol_req) +/* Re-name volumes */ +#define UBI_IOCRNVOL _IOW(UBI_IOC_MAGIC, 3, struct ubi_rnvol_req) /* IOCTL commands of the UBI control character device */ @@ -128,6 +137,9 @@ /* Maximum MTD device name length supported by UBI */ #define MAX_UBI_MTD_NAME_LEN 127 +/* Maximum amount of UBI volumes that can be re-named at one go */ +#define UBI_MAX_RNVOL 32 + /* * UBI data type hint constants. * @@ -189,7 +201,7 @@ struct ubi_attach_req { int32_t ubi_num; int32_t mtd_num; int32_t vid_hdr_offset; - uint8_t padding[12]; + int8_t padding[12]; }; /** @@ -250,6 +262,48 @@ struct ubi_rsvol_req { int32_t vol_id; } __attribute__ ((packed)); +/** + * struct ubi_rnvol_req - volumes re-name request. + * @count: count of volumes to re-name + * @padding1: reserved for future, not used, has to be zeroed + * @vol_id: ID of the volume to re-name + * @name_len: name length + * @padding2: reserved for future, not used, has to be zeroed + * @name: new volume name + * + * UBI allows to re-name up to %32 volumes at one go. The count of volumes to + * re-name is specified in the @count field. The ID of the volumes to re-name + * and the new names are specified in the @vol_id and @name fields. + * + * The UBI volume re-name operation is atomic, which means that should power cut + * happen, the volumes will have either old name or new name. So the possible + * use-cases of this command is atomic upgrade. Indeed, to upgrade, say, volumes + * A and B one may create temporary volumes %A1 and %B1 with the new contents, + * then atomically re-name A1->A and B1->B, in which case old %A and %B will + * be removed. + * + * If it is not desirable to remove old A and B, the re-name request has to + * contain 4 entries: A1->A, A->A1, B1->B, B->B1, in which case old A1 and B1 + * become A and B, and old A and B will become A1 and B1. + * + * It is also OK to request: A1->A, A1->X, B1->B, B->Y, in which case old A1 + * and B1 become A and B, and old A and B become X and Y. + * + * In other words, in case of re-naming into an existing volume name, the + * existing volume is removed, unless it is re-named as well at the same + * re-name request. + */ +struct ubi_rnvol_req { + int32_t count; + int8_t padding1[12]; + struct { + int32_t vol_id; + int16_t name_len; + int8_t padding2[2]; + char name[UBI_MAX_VOLUME_NAME + 1]; + } ents[UBI_MAX_RNVOL]; +} __attribute__ ((packed)); + /** * struct ubi_leb_change_req - a data structure used in atomic logical * eraseblock change requests. @@ -261,8 +315,8 @@ struct ubi_rsvol_req { struct ubi_leb_change_req { int32_t lnum; int32_t bytes; - uint8_t dtype; - uint8_t padding[7]; + int8_t dtype; + int8_t padding[7]; } __attribute__ ((packed)); #endif /* __UBI_USER_H__ */ -- cgit v1.2.3 From 9c9ec147709e63e4e8ac6a037c6bb50688ff8e9c Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 18 Jul 2008 13:19:52 +0300 Subject: UBI: fix checkpatch.pl errors and warnings Just out or curiousity ran checkpatch.pl for whole UBI, and discovered there are quite a few of stylistic issues. Fix them. Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/build.c | 8 ++--- drivers/mtd/ubi/cdev.c | 4 +-- drivers/mtd/ubi/eba.c | 7 ++-- drivers/mtd/ubi/gluebi.c | 4 +-- drivers/mtd/ubi/io.c | 8 ++--- drivers/mtd/ubi/scan.c | 9 ++--- drivers/mtd/ubi/ubi.h | 3 +- drivers/mtd/ubi/upd.c | 8 +++-- drivers/mtd/ubi/vmt.c | 4 +-- drivers/mtd/ubi/vtbl.c | 12 +++---- drivers/mtd/ubi/wl.c | 92 +++++++++++++++++++++++------------------------- include/mtd/ubi-user.h | 16 ++++----- 12 files changed, 86 insertions(+), 89 deletions(-) (limited to 'include') diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 4418a2369b56..535d9a8a6ba8 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -51,14 +51,13 @@ * @name: MTD device name or number string * @vid_hdr_offs: VID header offset */ -struct mtd_dev_param -{ +struct mtd_dev_param { char name[MTD_PARAM_LEN_MAX]; int vid_hdr_offs; }; /* Numbers of elements set in the @mtd_dev_param array */ -static int mtd_devs = 0; +static int mtd_devs; /* MTD devices specification parameters */ static struct mtd_dev_param mtd_dev_param[UBI_MAX_DEVICES]; @@ -781,7 +780,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) if (!ubi_devices[ubi_num]) break; if (ubi_num == UBI_MAX_DEVICES) { - dbg_err("only %d UBI devices may be created", UBI_MAX_DEVICES); + dbg_err("only %d UBI devices may be created", + UBI_MAX_DEVICES); return -ENFILE; } } else { diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index bc8199c6a9f5..03c759b4eeb5 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -39,9 +39,9 @@ #include #include #include +#include #include #include -#include #include #include "ubi.h" @@ -352,7 +352,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, } #else -#define vol_cdev_direct_write(file, buf, count, offp) -EPERM +#define vol_cdev_direct_write(file, buf, count, offp) (-EPERM) #endif /* CONFIG_MTD_UBI_DEBUG_USERSPACE_IO */ static ssize_t vol_cdev_write(struct file *file, const char __user *buf, diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index e14208152c36..e04bcf1dff87 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -189,9 +189,7 @@ static struct ubi_ltree_entry *ltree_add_entry(struct ubi_device *ubi, le->users += 1; spin_unlock(&ubi->ltree_lock); - if (le_free) - kfree(le_free); - + kfree(le_free); return le; } @@ -503,9 +501,8 @@ static int recover_peb(struct ubi_device *ubi, int pnum, int vol_id, int lnum, struct ubi_vid_hdr *vid_hdr; vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_NOFS); - if (!vid_hdr) { + if (!vid_hdr) return -ENOMEM; - } mutex_lock(&ubi->buf_mutex); diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c index 49f52dceea93..605812bb0b1a 100644 --- a/drivers/mtd/ubi/gluebi.c +++ b/drivers/mtd/ubi/gluebi.c @@ -249,8 +249,8 @@ static int gluebi_erase(struct mtd_info *mtd, struct erase_info *instr) if (err) goto out_err; - instr->state = MTD_ERASE_DONE; - mtd_erase_callback(instr); + instr->state = MTD_ERASE_DONE; + mtd_erase_callback(instr); return 0; out_err: diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 2bebb39d19b3..a84f0db0a03a 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -167,8 +167,8 @@ retry: } if (read != len && retries++ < UBI_IO_RETRIES) { - dbg_io("error %d while reading %d bytes from PEB %d:%d, " - "read only %zd bytes, retry", + dbg_io("error %d while reading %d bytes from PEB %d:%d," + " read only %zd bytes, retry", err, len, pnum, offset, read); yield(); goto retry; @@ -705,8 +705,8 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum, if (hdr_crc != crc) { if (verbose) { - ubi_warn("bad EC header CRC at PEB %d, calculated %#08x," - " read %#08x", pnum, crc, hdr_crc); + ubi_warn("bad EC header CRC at PEB %d, calculated " + "%#08x, read %#08x", pnum, crc, hdr_crc); ubi_dbg_dump_ec_hdr(ec_hdr); } return UBI_IO_BAD_EC_HDR; diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c index 40eca9ce5fab..0bb7488862d2 100644 --- a/drivers/mtd/ubi/scan.c +++ b/drivers/mtd/ubi/scan.c @@ -248,7 +248,8 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb, unsigned long long sqnum2 = be64_to_cpu(vid_hdr->sqnum); if (seb->sqnum == 0 && sqnum2 == 0) { - long long abs, v1 = seb->leb_ver, v2 = be32_to_cpu(vid_hdr->leb_ver); + long long abs; + long long v1 = seb->leb_ver, v2 = be32_to_cpu(vid_hdr->leb_ver); /* * UBI constantly increases the logical eraseblock version @@ -752,7 +753,8 @@ struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi, * This function returns a zero if the physical eraseblock was successfully * handled and a negative error code in case of failure. */ -static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum) +static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, + int pnum) { long long uninitialized_var(ec); int err, bitflips = 0, vol_id, ec_corr = 0; @@ -1301,8 +1303,7 @@ static int paranoid_check_si(struct ubi_device *ubi, struct ubi_scan_info *si) if (err < 0) { kfree(buf); return err; - } - else if (err) + } else if (err) buf[pnum] = 1; } diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 274c67916b34..14a5596d2d9e 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -473,7 +473,8 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol, const void __user *buf, int count); /* misc.c */ -int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf, int length); +int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf, + int length); int ubi_check_volume(struct ubi_device *ubi, int vol_id); void ubi_calculate_reserved(struct ubi_device *ubi); diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c index 1230a5e1b530..3b8beb8545c4 100644 --- a/drivers/mtd/ubi/upd.c +++ b/drivers/mtd/ubi/upd.c @@ -39,7 +39,7 @@ */ #include -#include +#include #include #include "ubi.h" @@ -246,7 +246,8 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum, return 0; } - err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len, UBI_UNKNOWN); + err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len, + UBI_UNKNOWN); } else { /* * When writing static volume, and this is the last logical @@ -418,7 +419,8 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol, if (vol->upd_received == vol->upd_bytes) { int len = ALIGN((int)vol->upd_bytes, ubi->min_io_size); - memset(vol->upd_buf + vol->upd_bytes, 0xFF, len - vol->upd_bytes); + memset(vol->upd_buf + vol->upd_bytes, 0xFF, + len - vol->upd_bytes); len = ubi_calc_data_len(ubi, vol->upd_buf, len); err = ubi_eba_atomic_leb_change(ubi, vol, vol->ch_lnum, vol->upd_buf, len, UBI_UNKNOWN); diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 4be4014c70df..852482d8b18f 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -253,7 +253,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) goto out_unlock; } - /* Calculate how many eraseblocks are requested */ + /* Calculate how many eraseblocks are requested */ vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment; bytes = req->bytes; if (do_div(bytes, vol->usable_leb_size)) @@ -858,7 +858,7 @@ static int paranoid_check_volume(struct ubi_device *ubi, int vol_id) if (alignment != vol->alignment || data_pad != vol->data_pad || upd_marker != vol->upd_marker || vol_type != vol->vol_type || - name_len!= vol->name_len || strncmp(name, vol->name, name_len)) { + name_len != vol->name_len || strncmp(name, vol->name, name_len)) { ubi_err("volume info is different"); goto fail; } diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index 23c5376234b2..10c22257f601 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -461,7 +461,8 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi, if (!leb_corrupted[0]) { /* LEB 0 is OK */ if (leb[1]) - leb_corrupted[1] = memcmp(leb[0], leb[1], ubi->vtbl_size); + leb_corrupted[1] = memcmp(leb[0], leb[1], + ubi->vtbl_size); if (leb_corrupted[1]) { ubi_warn("volume table copy #2 is corrupted"); err = create_vtbl(ubi, si, 1, leb[0]); @@ -859,11 +860,10 @@ int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si) out_free: vfree(ubi->vtbl); - for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) - if (ubi->volumes[i]) { - kfree(ubi->volumes[i]); - ubi->volumes[i] = NULL; - } + for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) { + kfree(ubi->volumes[i]); + ubi->volumes[i] = NULL; + } return err; } diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index 6821952bcdb8..2a5d2a0e14ad 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -475,52 +475,47 @@ retry: } switch (dtype) { - case UBI_LONGTERM: - /* - * For long term data we pick a physical eraseblock - * with high erase counter. But the highest erase - * counter we can pick is bounded by the the lowest - * erase counter plus %WL_FREE_MAX_DIFF. - */ - e = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF); - protect = LT_PROTECTION; - break; - case UBI_UNKNOWN: - /* - * For unknown data we pick a physical eraseblock with - * medium erase counter. But we by no means can pick a - * physical eraseblock with erase counter greater or - * equivalent than the lowest erase counter plus - * %WL_FREE_MAX_DIFF. - */ - first = rb_entry(rb_first(&ubi->free), - struct ubi_wl_entry, rb); - last = rb_entry(rb_last(&ubi->free), - struct ubi_wl_entry, rb); + case UBI_LONGTERM: + /* + * For long term data we pick a physical eraseblock with high + * erase counter. But the highest erase counter we can pick is + * bounded by the the lowest erase counter plus + * %WL_FREE_MAX_DIFF. + */ + e = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF); + protect = LT_PROTECTION; + break; + case UBI_UNKNOWN: + /* + * For unknown data we pick a physical eraseblock with medium + * erase counter. But we by no means can pick a physical + * eraseblock with erase counter greater or equivalent than the + * lowest erase counter plus %WL_FREE_MAX_DIFF. + */ + first = rb_entry(rb_first(&ubi->free), struct ubi_wl_entry, rb); + last = rb_entry(rb_last(&ubi->free), struct ubi_wl_entry, rb); - if (last->ec - first->ec < WL_FREE_MAX_DIFF) - e = rb_entry(ubi->free.rb_node, - struct ubi_wl_entry, rb); - else { - medium_ec = (first->ec + WL_FREE_MAX_DIFF)/2; - e = find_wl_entry(&ubi->free, medium_ec); - } - protect = U_PROTECTION; - break; - case UBI_SHORTTERM: - /* - * For short term data we pick a physical eraseblock - * with the lowest erase counter as we expect it will - * be erased soon. - */ - e = rb_entry(rb_first(&ubi->free), - struct ubi_wl_entry, rb); - protect = ST_PROTECTION; - break; - default: - protect = 0; - e = NULL; - BUG(); + if (last->ec - first->ec < WL_FREE_MAX_DIFF) + e = rb_entry(ubi->free.rb_node, + struct ubi_wl_entry, rb); + else { + medium_ec = (first->ec + WL_FREE_MAX_DIFF)/2; + e = find_wl_entry(&ubi->free, medium_ec); + } + protect = U_PROTECTION; + break; + case UBI_SHORTTERM: + /* + * For short term data we pick a physical eraseblock with the + * lowest erase counter as we expect it will be erased soon. + */ + e = rb_entry(rb_first(&ubi->free), struct ubi_wl_entry, rb); + protect = ST_PROTECTION; + break; + default: + protect = 0; + e = NULL; + BUG(); } /* @@ -584,7 +579,8 @@ found: * This function returns zero in case of success and a negative error code in * case of failure. */ -static int sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e, int torture) +static int sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e, + int torture) { int err; struct ubi_ec_hdr *ec_hdr; @@ -1060,8 +1056,8 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk, spin_unlock(&ubi->wl_lock); /* - * One more erase operation has happened, take care about protected - * physical eraseblocks. + * One more erase operation has happened, take care about + * protected physical eraseblocks. */ check_protection_over(ubi); diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h index e8e57c3dfcdb..ccdc562e444e 100644 --- a/include/mtd/ubi-user.h +++ b/include/mtd/ubi-user.h @@ -188,14 +188,14 @@ enum { * it will be 512 in case of a 2KiB page NAND flash with 4 512-byte sub-pages. * * But in rare cases, if this optimizes things, the VID header may be placed to - * a different offset. For example, the boot-loader might do things faster if the - * VID header sits at the end of the first 2KiB NAND page with 4 sub-pages. As - * the boot-loader would not normally need to read EC headers (unless it needs - * UBI in RW mode), it might be faster to calculate ECC. This is weird example, - * but it real-life example. So, in this example, @vid_hdr_offer would be - * 2KiB-64 bytes = 1984. Note, that this position is not even 512-bytes - * aligned, which is OK, as UBI is clever enough to realize this is 4th sub-page - * of the first page and add needed padding. + * a different offset. For example, the boot-loader might do things faster if + * the VID header sits at the end of the first 2KiB NAND page with 4 sub-pages. + * As the boot-loader would not normally need to read EC headers (unless it + * needs UBI in RW mode), it might be faster to calculate ECC. This is weird + * example, but it real-life example. So, in this example, @vid_hdr_offer would + * be 2KiB-64 bytes = 1984. Note, that this position is not even 512-bytes + * aligned, which is OK, as UBI is clever enough to realize this is 4th + * sub-page of the first page and add needed padding. */ struct ubi_attach_req { int32_t ubi_num; -- cgit v1.2.3 From 04bbe430f73c6c31bbd067349c029e907e153a8d Mon Sep 17 00:00:00 2001 From: Vegard Nossum Date: Mon, 21 Jul 2008 15:06:35 +0200 Subject: x86: fix header export, asm-x86/processor-flags.h, CONFIG_* leaks Apparently, commit 6330a30a76c1e62d4b4ec238368957f8febf9113 Author: Vegard Nossum Date: Wed May 28 09:46:19 2008 +0200 x86: break mutual header inclusion introduced some CONFIG names to processor-flags.h, which was exported in commit 6093015db2bd9e70cf20cdd23be1a50733baafdd Author: Ingo Molnar Date: Sun Mar 30 11:45:23 2008 +0200 x86: cleanup replace most vm86 flags with flags from processor-flags.h, fix Fix it by wrapping the CONFIG parts in __KERNEL__. Reported-by: Olaf Hering Signed-off-by: Vegard Nossum Cc: Adrian Bunk Cc: Olaf Hering Signed-off-by: Ingo Molnar --- include/asm-x86/processor-flags.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-x86/processor-flags.h b/include/asm-x86/processor-flags.h index 092b39b3a7e6..eff2ecd7fff0 100644 --- a/include/asm-x86/processor-flags.h +++ b/include/asm-x86/processor-flags.h @@ -88,10 +88,12 @@ #define CX86_ARR_BASE 0xc4 #define CX86_RCR_BASE 0xdc +#ifdef __KERNEL__ #ifdef CONFIG_VM86 #define X86_VM_MASK X86_EFLAGS_VM #else #define X86_VM_MASK 0 /* No VM86 support */ #endif +#endif #endif /* __ASM_I386_PROCESSOR_FLAGS_H */ -- cgit v1.2.3 From 218df4a25a9b828df4bb44c86e35febe40c82e62 Mon Sep 17 00:00:00 2001 From: Hans-Christian Egtvedt Date: Tue, 1 Jul 2008 14:26:45 +0200 Subject: avr32: Add platform data for AC97C platform device This patch adds platform data to the AC97C platform device. This will let the board add a GPIO line which is connected to the external codecs reset line. The platform data, ac97c_platform_data, must also contain the DMA controller ID, RX channel ID and TX channel ID. Tested with Wolfson WM9712 and AP7000. Signed-off-by: Hans-Christian Egtvedt Signed-off-by: Haavard Skinnemoen --- arch/avr32/mach-at32ap/at32ap700x.c | 34 +++++++++++++++++++++++++++------- include/asm-avr32/arch-at32ap/board.h | 10 +++++++++- 2 files changed, 36 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c index 4ac38d28891d..30c7cdab28d0 100644 --- a/arch/avr32/mach-at32ap/at32ap700x.c +++ b/arch/avr32/mach-at32ap/at32ap700x.c @@ -1883,9 +1883,11 @@ static struct clk atmel_ac97c0_pclk = { .index = 10, }; -struct platform_device *__init at32_add_device_ac97c(unsigned int id) +struct platform_device *__init +at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data) { struct platform_device *pdev; + struct ac97c_platform_data _data; if (id != 0) return NULL; @@ -1896,19 +1898,37 @@ struct platform_device *__init at32_add_device_ac97c(unsigned int id) if (platform_device_add_resources(pdev, atmel_ac97c0_resource, ARRAY_SIZE(atmel_ac97c0_resource))) - goto err_add_resources; + goto fail; + + if (!data) { + data = &_data; + memset(data, 0, sizeof(struct ac97c_platform_data)); + data->reset_pin = GPIO_PIN_NONE; + } + + data->dma_rx_periph_id = 3; + data->dma_tx_periph_id = 4; + data->dma_controller_id = 0; - select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */ - select_peripheral(PB(21), PERIPH_B, 0); /* SDO */ - select_peripheral(PB(22), PERIPH_B, 0); /* SDI */ - select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */ + if (platform_device_add_data(pdev, data, + sizeof(struct ac97c_platform_data))) + goto fail; + + select_peripheral(PB(20), PERIPH_B, 0); /* SDO */ + select_peripheral(PB(21), PERIPH_B, 0); /* SYNC */ + select_peripheral(PB(22), PERIPH_B, 0); /* SCLK */ + select_peripheral(PB(23), PERIPH_B, 0); /* SDI */ + + /* TODO: gpio_is_valid(data->reset_pin) with kernel 2.6.26. */ + if (data->reset_pin != GPIO_PIN_NONE) + at32_select_gpio(data->reset_pin, 0); atmel_ac97c0_pclk.dev = &pdev->dev; platform_device_add(pdev); return pdev; -err_add_resources: +fail: platform_device_put(pdev); return NULL; } diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h index a3783861cdd2..203cb4ead2c8 100644 --- a/include/asm-avr32/arch-at32ap/board.h +++ b/include/asm-avr32/arch-at32ap/board.h @@ -82,7 +82,15 @@ struct mci_platform_data; struct platform_device * at32_add_device_mci(unsigned int id, struct mci_platform_data *data); -struct platform_device *at32_add_device_ac97c(unsigned int id); +struct ac97c_platform_data { + unsigned short dma_rx_periph_id; + unsigned short dma_tx_periph_id; + unsigned short dma_controller_id; + int reset_pin; +}; +struct platform_device * +at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data); + struct platform_device *at32_add_device_abdac(unsigned int id); struct platform_device *at32_add_device_psif(unsigned int id); -- cgit v1.2.3 From 2351ec533ed0dd56052ab96988d2161d5ecc8ed9 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 24 Jul 2008 08:09:32 -0400 Subject: Remove asm/semaphore.h All users have now been converted to linux/semaphore.h and we don't need to keep these files around any longer. Signed-off-by: Matthew Wilcox --- Documentation/feature-removal-schedule.txt | 8 -------- include/asm-alpha/semaphore.h | 1 - include/asm-arm/semaphore.h | 1 - include/asm-avr32/semaphore.h | 1 - include/asm-blackfin/semaphore.h | 1 - include/asm-cris/semaphore.h | 1 - include/asm-frv/semaphore.h | 1 - include/asm-h8300/semaphore.h | 1 - include/asm-ia64/semaphore.h | 1 - include/asm-m32r/semaphore.h | 1 - include/asm-m68k/semaphore.h | 1 - include/asm-m68knommu/semaphore.h | 1 - include/asm-mips/semaphore.h | 1 - include/asm-mn10300/semaphore.h | 1 - include/asm-parisc/semaphore.h | 1 - include/asm-powerpc/semaphore.h | 1 - include/asm-s390/semaphore.h | 1 - include/asm-sh/semaphore.h | 1 - include/asm-sparc/semaphore.h | 1 - include/asm-sparc64/semaphore.h | 1 - include/asm-um/semaphore.h | 1 - include/asm-v850/semaphore.h | 1 - include/asm-x86/semaphore.h | 1 - include/asm-xtensa/semaphore.h | 1 - 24 files changed, 31 deletions(-) delete mode 100644 include/asm-alpha/semaphore.h delete mode 100644 include/asm-arm/semaphore.h delete mode 100644 include/asm-avr32/semaphore.h delete mode 100644 include/asm-blackfin/semaphore.h delete mode 100644 include/asm-cris/semaphore.h delete mode 100644 include/asm-frv/semaphore.h delete mode 100644 include/asm-h8300/semaphore.h delete mode 100644 include/asm-ia64/semaphore.h delete mode 100644 include/asm-m32r/semaphore.h delete mode 100644 include/asm-m68k/semaphore.h delete mode 100644 include/asm-m68knommu/semaphore.h delete mode 100644 include/asm-mips/semaphore.h delete mode 100644 include/asm-mn10300/semaphore.h delete mode 100644 include/asm-parisc/semaphore.h delete mode 100644 include/asm-powerpc/semaphore.h delete mode 100644 include/asm-s390/semaphore.h delete mode 100644 include/asm-sh/semaphore.h delete mode 100644 include/asm-sparc/semaphore.h delete mode 100644 include/asm-sparc64/semaphore.h delete mode 100644 include/asm-um/semaphore.h delete mode 100644 include/asm-v850/semaphore.h delete mode 100644 include/asm-x86/semaphore.h delete mode 100644 include/asm-xtensa/semaphore.h (limited to 'include') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 9f73587219e8..09c4a1efb8e3 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -300,14 +300,6 @@ Who: ocfs2-devel@oss.oracle.com --------------------------- -What: asm/semaphore.h -When: 2.6.26 -Why: Implementation became generic; users should now include - linux/semaphore.h instead. -Who: Matthew Wilcox - ---------------------------- - What: SCTP_GET_PEER_ADDRS_NUM_OLD, SCTP_GET_PEER_ADDRS_OLD, SCTP_GET_LOCAL_ADDRS_NUM_OLD, SCTP_GET_LOCAL_ADDRS_OLD When: June 2009 diff --git a/include/asm-alpha/semaphore.h b/include/asm-alpha/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-alpha/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-arm/semaphore.h b/include/asm-arm/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-arm/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-avr32/semaphore.h b/include/asm-avr32/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-avr32/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-blackfin/semaphore.h b/include/asm-blackfin/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-blackfin/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-cris/semaphore.h b/include/asm-cris/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-cris/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-frv/semaphore.h b/include/asm-frv/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-frv/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-h8300/semaphore.h b/include/asm-h8300/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-h8300/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-ia64/semaphore.h b/include/asm-ia64/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-ia64/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-m32r/semaphore.h b/include/asm-m32r/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-m32r/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-m68k/semaphore.h b/include/asm-m68k/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-m68k/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-m68knommu/semaphore.h b/include/asm-m68knommu/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-m68knommu/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-mips/semaphore.h b/include/asm-mips/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-mips/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-mn10300/semaphore.h b/include/asm-mn10300/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-mn10300/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-parisc/semaphore.h b/include/asm-parisc/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-parisc/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-powerpc/semaphore.h b/include/asm-powerpc/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-powerpc/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-s390/semaphore.h b/include/asm-s390/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-s390/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-sh/semaphore.h b/include/asm-sh/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-sh/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-sparc/semaphore.h b/include/asm-sparc/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-sparc/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-sparc64/semaphore.h b/include/asm-sparc64/semaphore.h deleted file mode 100644 index 39362afde5fe..000000000000 --- a/include/asm-sparc64/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-um/semaphore.h b/include/asm-um/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-um/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-v850/semaphore.h b/include/asm-v850/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-v850/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-x86/semaphore.h b/include/asm-x86/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-x86/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-xtensa/semaphore.h b/include/asm-xtensa/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-xtensa/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include -- cgit v1.2.3 From b552068999b0b05087c454e525b30b785c79dc9b Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Wed, 23 Apr 2008 10:07:27 -0400 Subject: Remove __DECLARE_SEMAPHORE_GENERIC There are no users of __DECLARE_SEMAPHORE_GENERIC in the kernel Signed-off-by: Matthew Wilcox --- include/linux/semaphore.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h index 9cae64b00d6b..7415839ac890 100644 --- a/include/linux/semaphore.h +++ b/include/linux/semaphore.h @@ -26,10 +26,8 @@ struct semaphore { .wait_list = LIST_HEAD_INIT((name).wait_list), \ } -#define __DECLARE_SEMAPHORE_GENERIC(name, count) \ - struct semaphore name = __SEMAPHORE_INITIALIZER(name, count) - -#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name, 1) +#define DECLARE_MUTEX(name) \ + struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1) static inline void sema_init(struct semaphore *sem, int val) { -- cgit v1.2.3 From e108526e77aa41c89b3be96f75d97615db2b751c Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Jul 2008 21:26:44 -0700 Subject: move memory_read_from_buffer() from fs.h to string.h James Bottomley warns that inclusion of linux/fs.h in a low level driver was always a danger signal. This patch moves memory_read_from_buffer() from fs.h to string.h and fixes includes in existing memory_read_from_buffer() users. Signed-off-by: Akinobu Mita Cc: James Bottomley Cc: Geert Uytterhoeven Cc: Zhang Rui Cc: Bob Moore Cc: Thomas Renninger Cc: Len Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/acpi/system.c | 1 + drivers/zorro/zorro-sysfs.c | 1 - include/linux/fs.h | 2 -- include/linux/string.h | 3 +++ 4 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index d8e3f153b295..91dec448b3ed 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c index 3da712cc7708..5290552d2ef7 100644 --- a/drivers/zorro/zorro-sysfs.c +++ b/drivers/zorro/zorro-sysfs.c @@ -15,7 +15,6 @@ #include #include #include -#include #include "zorro.h" diff --git a/include/linux/fs.h b/include/linux/fs.h index 9c2ac5c0ef5c..ff54ae4933f3 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2006,8 +2006,6 @@ extern void simple_release_fs(struct vfsmount **mount, int *count); extern ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, const void *from, size_t available); -extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, - const void *from, size_t available); #ifdef CONFIG_MIGRATION extern int buffer_migrate_page(struct address_space *, diff --git a/include/linux/string.h b/include/linux/string.h index efdc44593b52..810d80df0a1d 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -111,5 +111,8 @@ extern void argv_free(char **argv); extern bool sysfs_streq(const char *s1, const char *s2); +extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, + const void *from, size_t available); + #endif #endif /* _LINUX_STRING_H_ */ -- cgit v1.2.3 From 8b05c7e6e159d2f33c9275281b8b909a89eb7c5d Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Wed, 23 Jul 2008 21:26:53 -0700 Subject: add a helper function to test if an object is on the stack lib/debugobjects.c has a function to test if an object is on the stack. The block layer and ide needs it (they need to avoid DMA from/to stack buffers). This patch moves the function to include/linux/sched.h so that everyone can use it. lib/debugobjects.c uses current->stack but this patch uses a task_stack_page() accessor, which is a preferable way to access the stack. Signed-off-by: FUJITA Tomonori Cc: Christoph Lameter Cc: Andy Whitcroft Cc: Ingo Molnar Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 7 +++++++ lib/debugobjects.c | 4 +--- 2 files changed, 8 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index dc7e592c473a..6aca4a16e377 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1983,6 +1983,13 @@ static inline unsigned long *end_of_stack(struct task_struct *p) #endif +static inline int object_is_on_stack(void *obj) +{ + void *stack = task_stack_page(current); + + return (obj >= stack) && (obj < (stack + THREAD_SIZE)); +} + extern void thread_info_cache_init(void); /* set thread flags in other task's structures diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 85b18d79be89..f86196390cfd 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -226,15 +226,13 @@ debug_object_fixup(int (*fixup)(void *addr, enum debug_obj_state state), static void debug_object_is_on_stack(void *addr, int onstack) { - void *stack = current->stack; int is_on_stack; static int limit; if (limit > 4) return; - is_on_stack = (addr >= stack && addr < (stack + THREAD_SIZE)); - + is_on_stack = object_is_on_stack(addr); if (is_on_stack == onstack) return; -- cgit v1.2.3 From b61bfa3c462671c48a51fb5c31af337c5a996a04 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 23 Jul 2008 21:26:55 -0700 Subject: mm: move bootmem descriptors definition to a single place There are a lot of places that define either a single bootmem descriptor or an array of them. Use only one central array with MAX_NUMNODES items instead. Signed-off-by: Johannes Weiner Acked-by: Ralf Baechle Cc: Ingo Molnar Cc: Richard Henderson Cc: Russell King Cc: Tony Luck Cc: Hirokazu Takata Cc: Geert Uytterhoeven Cc: Kyle McMartin Cc: Paul Mackerras Cc: Paul Mundt Cc: David S. Miller Cc: Yinghai Lu Cc: Christoph Lameter Cc: Mel Gorman Cc: Andy Whitcroft Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/mm/numa.c | 8 ++++---- arch/arm/mm/discontig.c | 34 ++++++++++++++++------------------ arch/ia64/mm/discontig.c | 11 +++++------ arch/m32r/mm/discontig.c | 4 +--- arch/m68k/mm/init.c | 4 +--- arch/mips/sgi-ip27/ip27-memory.c | 4 +--- arch/parisc/mm/init.c | 3 +-- arch/powerpc/mm/numa.c | 3 +-- arch/sh/mm/numa.c | 5 ++--- arch/sparc64/mm/init.c | 3 +-- arch/x86/mm/discontig_32.c | 3 +-- arch/x86/mm/numa_64.c | 4 +--- include/linux/bootmem.h | 2 ++ mm/bootmem.c | 2 ++ mm/page_alloc.c | 4 +--- 15 files changed, 40 insertions(+), 54 deletions(-) (limited to 'include') diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index 10ab7833e83c..a53fda0481ca 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -19,7 +19,6 @@ #include pg_data_t node_data[MAX_NUMNODES]; -bootmem_data_t node_bdata[MAX_NUMNODES]; EXPORT_SYMBOL(node_data); #undef DEBUG_DISCONTIG @@ -141,7 +140,7 @@ setup_memory_node(int nid, void *kernel_end) printk(" not enough mem to reserve NODE_DATA"); return; } - NODE_DATA(nid)->bdata = &node_bdata[nid]; + NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; printk(" Detected node memory: start %8lu, end %8lu\n", node_min_pfn, node_max_pfn); @@ -304,8 +303,9 @@ void __init paging_init(void) dma_local_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; for_each_online_node(nid) { - unsigned long start_pfn = node_bdata[nid].node_boot_start >> PAGE_SHIFT; - unsigned long end_pfn = node_bdata[nid].node_low_pfn; + bootmem_data_t *bdata = &bootmem_node_data[nid]; + unsigned long start_pfn = bdata->node_boot_start >> PAGE_SHIFT; + unsigned long end_pfn = bdata->node_low_pfn; if (dma_local_pfn >= end_pfn - start_pfn) zones_size[ZONE_DMA] = end_pfn - start_pfn; diff --git a/arch/arm/mm/discontig.c b/arch/arm/mm/discontig.c index 1e5602189507..c8c0c4b0f0a3 100644 --- a/arch/arm/mm/discontig.c +++ b/arch/arm/mm/discontig.c @@ -21,26 +21,24 @@ * Our node_data structure for discontiguous memory. */ -static bootmem_data_t node_bootmem_data[MAX_NUMNODES]; - pg_data_t discontig_node_data[MAX_NUMNODES] = { - { .bdata = &node_bootmem_data[0] }, - { .bdata = &node_bootmem_data[1] }, - { .bdata = &node_bootmem_data[2] }, - { .bdata = &node_bootmem_data[3] }, + { .bdata = &bootmem_node_data[0] }, + { .bdata = &bootmem_node_data[1] }, + { .bdata = &bootmem_node_data[2] }, + { .bdata = &bootmem_node_data[3] }, #if MAX_NUMNODES == 16 - { .bdata = &node_bootmem_data[4] }, - { .bdata = &node_bootmem_data[5] }, - { .bdata = &node_bootmem_data[6] }, - { .bdata = &node_bootmem_data[7] }, - { .bdata = &node_bootmem_data[8] }, - { .bdata = &node_bootmem_data[9] }, - { .bdata = &node_bootmem_data[10] }, - { .bdata = &node_bootmem_data[11] }, - { .bdata = &node_bootmem_data[12] }, - { .bdata = &node_bootmem_data[13] }, - { .bdata = &node_bootmem_data[14] }, - { .bdata = &node_bootmem_data[15] }, + { .bdata = &bootmem_node_data[4] }, + { .bdata = &bootmem_node_data[5] }, + { .bdata = &bootmem_node_data[6] }, + { .bdata = &bootmem_node_data[7] }, + { .bdata = &bootmem_node_data[8] }, + { .bdata = &bootmem_node_data[9] }, + { .bdata = &bootmem_node_data[10] }, + { .bdata = &bootmem_node_data[11] }, + { .bdata = &bootmem_node_data[12] }, + { .bdata = &bootmem_node_data[13] }, + { .bdata = &bootmem_node_data[14] }, + { .bdata = &bootmem_node_data[15] }, #endif }; diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 544dc420c65e..2fcf8464331e 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -36,7 +36,6 @@ struct early_node_data { struct ia64_node_data *node_data; unsigned long pernode_addr; unsigned long pernode_size; - struct bootmem_data bootmem_data; unsigned long num_physpages; #ifdef CONFIG_ZONE_DMA unsigned long num_dma_physpages; @@ -76,7 +75,7 @@ static int __init build_node_maps(unsigned long start, unsigned long len, int node) { unsigned long cstart, epfn, end = start + len; - struct bootmem_data *bdp = &mem_data[node].bootmem_data; + struct bootmem_data *bdp = &bootmem_node_data[node]; epfn = GRANULEROUNDUP(end) >> PAGE_SHIFT; cstart = GRANULEROUNDDOWN(start); @@ -167,7 +166,7 @@ static void __init fill_pernode(int node, unsigned long pernode, { void *cpu_data; int cpus = early_nr_cpus_node(node); - struct bootmem_data *bdp = &mem_data[node].bootmem_data; + struct bootmem_data *bdp = &bootmem_node_data[node]; mem_data[node].pernode_addr = pernode; mem_data[node].pernode_size = pernodesize; @@ -224,7 +223,7 @@ static int __init find_pernode_space(unsigned long start, unsigned long len, { unsigned long epfn; unsigned long pernodesize = 0, pernode, pages, mapsize; - struct bootmem_data *bdp = &mem_data[node].bootmem_data; + struct bootmem_data *bdp = &bootmem_node_data[node]; epfn = (start + len) >> PAGE_SHIFT; @@ -440,7 +439,7 @@ void __init find_memory(void) efi_memmap_walk(find_max_min_low_pfn, NULL); for_each_online_node(node) - if (mem_data[node].bootmem_data.node_low_pfn) { + if (bootmem_node_data[node].node_low_pfn) { node_clear(node, memory_less_mask); mem_data[node].min_pfn = ~0UL; } @@ -460,7 +459,7 @@ void __init find_memory(void) else if (node_isset(node, memory_less_mask)) continue; - bdp = &mem_data[node].bootmem_data; + bdp = &bootmem_node_data[node]; pernode = mem_data[node].pernode_addr; pernodesize = mem_data[node].pernode_size; map = pernode + pernodesize; diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c index 07c1af7dc0e2..aa9145ef6cca 100644 --- a/arch/m32r/mm/discontig.c +++ b/arch/m32r/mm/discontig.c @@ -20,7 +20,6 @@ extern char _end[]; struct pglist_data *node_data[MAX_NUMNODES]; EXPORT_SYMBOL(node_data); -static bootmem_data_t node_bdata[MAX_NUMNODES] __initdata; pg_data_t m32r_node_data[MAX_NUMNODES]; @@ -81,7 +80,7 @@ unsigned long __init setup_memory(void) for_each_online_node(nid) { mp = &mem_prof[nid]; NODE_DATA(nid)=(pg_data_t *)&m32r_node_data[nid]; - NODE_DATA(nid)->bdata = &node_bdata[nid]; + NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; min_pfn = mp->start_pfn; max_pfn = mp->start_pfn + mp->pages; bootmap_size = init_bootmem_node(NODE_DATA(nid), mp->free_pfn, @@ -163,4 +162,3 @@ unsigned long __init zone_sizes_init(void) return holes; } - diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index d8fb9c5303cc..79f5f94d4800 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -32,8 +32,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -static bootmem_data_t __initdata bootmem_data[MAX_NUMNODES]; - pg_data_t pg_data_map[MAX_NUMNODES]; EXPORT_SYMBOL(pg_data_map); @@ -58,7 +56,7 @@ void __init m68k_setup_node(int node) pg_data_table[i] = pg_data_map + node; } #endif - pg_data_map[node].bdata = bootmem_data + node; + pg_data_map[node].bdata = bootmem_node_data + node; node_set_online(node); } diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index 42cd10956306..060d853d7b35 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -33,8 +33,6 @@ #define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT) #define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT) -static struct bootmem_data __initdata plat_node_bdata[MAX_COMPACT_NODES]; - struct node_data *__node_data[MAX_COMPACT_NODES]; EXPORT_SYMBOL(__node_data); @@ -403,7 +401,7 @@ static void __init node_mem_init(cnodeid_t node) */ __node_data[node] = __va(slot_freepfn << PAGE_SHIFT); - NODE_DATA(node)->bdata = &plat_node_bdata[node]; + NODE_DATA(node)->bdata = &bootmem_node_data[node]; NODE_DATA(node)->node_start_pfn = start_pfn; NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn; diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index b4d6c8777ed0..0ddf4904640a 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -36,7 +36,6 @@ extern int data_start; #ifdef CONFIG_DISCONTIGMEM struct node_map_data node_data[MAX_NUMNODES] __read_mostly; -bootmem_data_t bmem_data[MAX_NUMNODES] __read_mostly; unsigned char pfnnid_map[PFNNID_MAP_MAX] __read_mostly; #endif @@ -262,7 +261,7 @@ static void __init setup_bootmem(void) #ifdef CONFIG_DISCONTIGMEM for (i = 0; i < MAX_PHYSMEM_RANGES; i++) { memset(NODE_DATA(i), 0, sizeof(pg_data_t)); - NODE_DATA(i)->bdata = &bmem_data[i]; + NODE_DATA(i)->bdata = &bootmem_node_data[i]; } memset(pfnnid_map, 0xff, sizeof(pfnnid_map)); diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index cf4bffba6f7c..d9a181351332 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -39,7 +39,6 @@ EXPORT_SYMBOL(numa_cpu_lookup_table); EXPORT_SYMBOL(numa_cpumask_lookup_table); EXPORT_SYMBOL(node_data); -static bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES]; static int min_common_depth; static int n_mem_addr_cells, n_mem_size_cells; @@ -816,7 +815,7 @@ void __init do_init_bootmem(void) dbg("node %d\n", nid); dbg("NODE_DATA() = %p\n", NODE_DATA(nid)); - NODE_DATA(nid)->bdata = &plat_node_bdata[nid]; + NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; NODE_DATA(nid)->node_start_pfn = start_pfn; NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn; diff --git a/arch/sh/mm/numa.c b/arch/sh/mm/numa.c index 1663199ce888..095d93bec7cd 100644 --- a/arch/sh/mm/numa.c +++ b/arch/sh/mm/numa.c @@ -14,7 +14,6 @@ #include #include -static bootmem_data_t plat_node_bdata[MAX_NUMNODES]; struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; EXPORT_SYMBOL_GPL(node_data); @@ -35,7 +34,7 @@ void __init setup_memory(void) NODE_DATA(0) = pfn_to_kaddr(free_pfn); memset(NODE_DATA(0), 0, sizeof(struct pglist_data)); free_pfn += PFN_UP(sizeof(struct pglist_data)); - NODE_DATA(0)->bdata = &plat_node_bdata[0]; + NODE_DATA(0)->bdata = &bootmem_node_data[0]; /* Set up node 0 */ setup_bootmem_allocator(free_pfn); @@ -66,7 +65,7 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end) free_pfn += PFN_UP(sizeof(struct pglist_data)); memset(NODE_DATA(nid), 0, sizeof(struct pglist_data)); - NODE_DATA(nid)->bdata = &plat_node_bdata[nid]; + NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; NODE_DATA(nid)->node_start_pfn = start_pfn; NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn; diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 84898c44dd4d..713297473951 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -788,7 +788,6 @@ int numa_cpu_lookup_table[NR_CPUS]; cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES]; #ifdef CONFIG_NEED_MULTIPLE_NODES -static bootmem_data_t plat_node_bdata[MAX_NUMNODES]; struct mdesc_mblock { u64 base; @@ -871,7 +870,7 @@ static void __init allocate_node_data(int nid) NODE_DATA(nid) = __va(paddr); memset(NODE_DATA(nid), 0, sizeof(struct pglist_data)); - NODE_DATA(nid)->bdata = &plat_node_bdata[nid]; + NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; #endif p = NODE_DATA(nid); diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c index 5dfef9fa061a..62fa440678d8 100644 --- a/arch/x86/mm/discontig_32.c +++ b/arch/x86/mm/discontig_32.c @@ -42,7 +42,6 @@ struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; EXPORT_SYMBOL(node_data); -static bootmem_data_t node0_bdata; /* * numa interface - we expect the numa architecture specific code to have @@ -385,7 +384,7 @@ void __init initmem_init(unsigned long start_pfn, for_each_online_node(nid) memset(NODE_DATA(nid), 0, sizeof(struct pglist_data)); - NODE_DATA(0)->bdata = &node0_bdata; + NODE_DATA(0)->bdata = &bootmem_node_data[0]; setup_bootmem_allocator(); } diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 9782f42dd319..a4dd793d6003 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -23,8 +23,6 @@ struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; EXPORT_SYMBOL(node_data); -static bootmem_data_t plat_node_bdata[MAX_NUMNODES]; - struct memnode memnode; s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = { @@ -198,7 +196,7 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, nodedata_phys + pgdat_size - 1); memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t)); - NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid]; + NODE_DATA(nodeid)->bdata = &bootmem_node_data[nodeid]; NODE_DATA(nodeid)->node_start_pfn = start_pfn; NODE_DATA(nodeid)->node_spanned_pages = last_pfn - start_pfn; diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index a1d9b79078ea..2599c741405e 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -38,6 +38,8 @@ typedef struct bootmem_data { struct list_head list; } bootmem_data_t; +extern bootmem_data_t bootmem_node_data[]; + extern unsigned long bootmem_bootmap_pages(unsigned long); extern unsigned long init_bootmem(unsigned long addr, unsigned long memend); extern void free_bootmem(unsigned long addr, unsigned long size); diff --git a/mm/bootmem.c b/mm/bootmem.c index 9f4bbc5da73f..35b3cb667036 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -36,6 +36,8 @@ static LIST_HEAD(bdata_list); unsigned long saved_max_pfn; #endif +bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata; + /* return the number of _pages_ that will be allocated for the boot bitmap */ unsigned long __init bootmem_bootmap_pages(unsigned long pages) { diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9ece07ce65b0..e089b92cdfff 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4040,9 +4040,7 @@ void __init set_dma_reserve(unsigned long new_dma_reserve) } #ifndef CONFIG_NEED_MULTIPLE_NODES -static bootmem_data_t contig_bootmem_data; -struct pglist_data contig_page_data = { .bdata = &contig_bootmem_data }; - +struct pglist_data contig_page_data = { .bdata = &bootmem_node_data[0] }; EXPORT_SYMBOL(contig_page_data); #endif -- cgit v1.2.3 From ffc6421f0720f433b5b35b89ff56e998eabff93b Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 23 Jul 2008 21:26:59 -0700 Subject: mm: unexport __alloc_bootmem_core() This function has no external callers, so unexport it. Also fix its naming inconsistency. Signed-off-by: Johannes Weiner Cc: Ingo Molnar Cc: Yinghai Lu Cc: Christoph Lameter Cc: Mel Gorman Cc: Andy Whitcroft Cc: Mel Gorman Cc: Andy Whitcroft Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bootmem.h | 5 ----- mm/bootmem.c | 24 ++++++++++++------------ 2 files changed, 12 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 2599c741405e..dd8fee6c46d9 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -56,11 +56,6 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal); -extern void *__alloc_bootmem_core(struct bootmem_data *bdata, - unsigned long size, - unsigned long align, - unsigned long goal, - unsigned long limit); /* * flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE, diff --git a/mm/bootmem.c b/mm/bootmem.c index 251c66c5d96a..4bc6ae2fbaa3 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -234,9 +234,9 @@ static void __init free_bootmem_core(bootmem_data_t *bdata, unsigned long addr, * * NOTE: This function is _not_ reentrant. */ -void * __init -__alloc_bootmem_core(struct bootmem_data *bdata, unsigned long size, - unsigned long align, unsigned long goal, unsigned long limit) +static void * __init +alloc_bootmem_core(struct bootmem_data *bdata, unsigned long size, + unsigned long align, unsigned long goal, unsigned long limit) { unsigned long areasize, preferred; unsigned long i, start = 0, incr, eidx, end_pfn; @@ -245,7 +245,7 @@ __alloc_bootmem_core(struct bootmem_data *bdata, unsigned long size, void *node_bootmem_map; if (!size) { - printk("__alloc_bootmem_core(): zero-sized request\n"); + printk("alloc_bootmem_core(): zero-sized request\n"); BUG(); } BUG_ON(align & (align-1)); @@ -512,7 +512,7 @@ void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align, void *ptr; list_for_each_entry(bdata, &bdata_list, list) { - ptr = __alloc_bootmem_core(bdata, size, align, goal, 0); + ptr = alloc_bootmem_core(bdata, size, align, goal, 0); if (ptr) return ptr; } @@ -540,7 +540,7 @@ void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, { void *ptr; - ptr = __alloc_bootmem_core(pgdat->bdata, size, align, goal, 0); + ptr = alloc_bootmem_core(pgdat->bdata, size, align, goal, 0); if (ptr) return ptr; @@ -559,8 +559,8 @@ void * __init alloc_bootmem_section(unsigned long size, goal = PFN_PHYS(pfn); limit = PFN_PHYS(section_nr_to_pfn(section_nr + 1)) - 1; pgdat = NODE_DATA(early_pfn_to_nid(pfn)); - ptr = __alloc_bootmem_core(pgdat->bdata, size, SMP_CACHE_BYTES, goal, - limit); + ptr = alloc_bootmem_core(pgdat->bdata, size, SMP_CACHE_BYTES, goal, + limit); if (!ptr) return NULL; @@ -589,8 +589,8 @@ void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, void *ptr; list_for_each_entry(bdata, &bdata_list, list) { - ptr = __alloc_bootmem_core(bdata, size, align, goal, - ARCH_LOW_ADDRESS_LIMIT); + ptr = alloc_bootmem_core(bdata, size, align, goal, + ARCH_LOW_ADDRESS_LIMIT); if (ptr) return ptr; } @@ -606,6 +606,6 @@ void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal) { - return __alloc_bootmem_core(pgdat->bdata, size, align, goal, - ARCH_LOW_ADDRESS_LIMIT); + return alloc_bootmem_core(pgdat->bdata, size, align, goal, + ARCH_LOW_ADDRESS_LIMIT); } -- cgit v1.2.3 From e4048e5dc4aecec670f48ed007a28779f09cebd6 Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Wed, 23 Jul 2008 21:27:01 -0700 Subject: page allocator: inline some __alloc_pages() wrappers Two zonelist patch series rewrote __page_alloc() largely. Now, it is just a wrapper function. Inlining them will save a function call. [akpm@linux-foundation.org: export __alloc_pages_internal] Cc: Lee Schermerhorn Cc: Mel Gorman Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gfp.h | 21 +++++++++++++++++---- mm/page_alloc.c | 19 ++----------------- 2 files changed, 19 insertions(+), 21 deletions(-) (limited to 'include') diff --git a/include/linux/gfp.h b/include/linux/gfp.h index b414be387180..f640ed241422 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -173,11 +173,24 @@ static inline void arch_free_page(struct page *page, int order) { } static inline void arch_alloc_page(struct page *page, int order) { } #endif -extern struct page *__alloc_pages(gfp_t, unsigned int, struct zonelist *); +struct page * +__alloc_pages_internal(gfp_t gfp_mask, unsigned int order, + struct zonelist *zonelist, nodemask_t *nodemask); + +static inline struct page * +__alloc_pages(gfp_t gfp_mask, unsigned int order, + struct zonelist *zonelist) +{ + return __alloc_pages_internal(gfp_mask, order, zonelist, NULL); +} + +static inline struct page * +__alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, + struct zonelist *zonelist, nodemask_t *nodemask) +{ + return __alloc_pages_internal(gfp_mask, order, zonelist, nodemask); +} -extern struct page * -__alloc_pages_nodemask(gfp_t, unsigned int, - struct zonelist *, nodemask_t *nodemask); static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask, unsigned int order) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e089b92cdfff..35b1347d81bb 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1429,7 +1429,7 @@ try_next_zone: /* * This is the 'heart' of the zoned buddy allocator. */ -static struct page * +struct page * __alloc_pages_internal(gfp_t gfp_mask, unsigned int order, struct zonelist *zonelist, nodemask_t *nodemask) { @@ -1632,22 +1632,7 @@ nopage: got_pg: return page; } - -struct page * -__alloc_pages(gfp_t gfp_mask, unsigned int order, - struct zonelist *zonelist) -{ - return __alloc_pages_internal(gfp_mask, order, zonelist, NULL); -} - -struct page * -__alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, - struct zonelist *zonelist, nodemask_t *nodemask) -{ - return __alloc_pages_internal(gfp_mask, order, zonelist, nodemask); -} - -EXPORT_SYMBOL(__alloc_pages); +EXPORT_SYMBOL(__alloc_pages_internal); /* * Common helper functions. -- cgit v1.2.3 From c748e1340e0de3fa7fed86f8bdf499be9242afff Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 23 Jul 2008 21:27:03 -0700 Subject: mm/vmstat.c: proper externs This patch adds proper extern declarations for five variables in include/linux/vmstat.h Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/proc_misc.c | 4 ---- include/linux/vmstat.h | 6 ++++++ kernel/sysctl.c | 2 +- mm/vmstat.c | 1 + 4 files changed, 8 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index c652d469dc08..b14f43d25e9e 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -232,7 +232,6 @@ static int meminfo_read_proc(char *page, char **start, off_t off, #undef K } -extern const struct seq_operations fragmentation_op; static int fragmentation_open(struct inode *inode, struct file *file) { (void)inode; @@ -246,7 +245,6 @@ static const struct file_operations fragmentation_file_operations = { .release = seq_release, }; -extern const struct seq_operations pagetypeinfo_op; static int pagetypeinfo_open(struct inode *inode, struct file *file) { return seq_open(file, &pagetypeinfo_op); @@ -259,7 +257,6 @@ static const struct file_operations pagetypeinfo_file_ops = { .release = seq_release, }; -extern const struct seq_operations zoneinfo_op; static int zoneinfo_open(struct inode *inode, struct file *file) { return seq_open(file, &zoneinfo_op); @@ -356,7 +353,6 @@ static const struct file_operations proc_devinfo_operations = { .release = seq_release, }; -extern const struct seq_operations vmstat_op; static int vmstat_open(struct inode *inode, struct file *file) { return seq_open(file, &vmstat_op); diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index e83b69346d23..58334d439516 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -44,6 +44,12 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, NR_VM_EVENT_ITEMS }; +extern const struct seq_operations fragmentation_op; +extern const struct seq_operations pagetypeinfo_op; +extern const struct seq_operations zoneinfo_op; +extern const struct seq_operations vmstat_op; +extern int sysctl_stat_interval; + #ifdef CONFIG_VM_EVENT_COUNTERS /* * Light weight per cpu counter implementation. diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 2a7b9d88706b..1f7b3b76a166 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include #include @@ -80,7 +81,6 @@ extern int sysctl_drop_caches; extern int percpu_pagelist_fraction; extern int compat_log; extern int maps_protect; -extern int sysctl_stat_interval; extern int latencytop_enabled; extern int sysctl_nr_open_min, sysctl_nr_open_max; #ifdef CONFIG_RCU_TORTURE_TEST diff --git a/mm/vmstat.c b/mm/vmstat.c index c3d4a781802f..b0d08e667ece 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #ifdef CONFIG_VM_EVENT_COUNTERS -- cgit v1.2.3 From 0d71d10a4252a3938e6b70189bc776171c02e076 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Wed, 23 Jul 2008 21:27:05 -0700 Subject: mm: remove nopfn There are no users of nopfn in the tree. Remove it. [hugh@veritas.com: fix build error] Signed-off-by: Nick Piggin Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 9 -------- mm/memory.c | 67 ++++++------------------------------------------------ 2 files changed, 7 insertions(+), 69 deletions(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 2128ef7780c6..eb815cfc1b35 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -166,8 +166,6 @@ struct vm_operations_struct { void (*open)(struct vm_area_struct * area); void (*close)(struct vm_area_struct * area); int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf); - unsigned long (*nopfn)(struct vm_area_struct *area, - unsigned long address); /* notification that a previously read-only page is about to become * writable, if an error is returned it will cause a SIGBUS */ @@ -674,13 +672,6 @@ static inline int page_mapped(struct page *page) return atomic_read(&(page)->_mapcount) >= 0; } -/* - * Error return values for the *_nopfn functions - */ -#define NOPFN_SIGBUS ((unsigned long) -1) -#define NOPFN_OOM ((unsigned long) -2) -#define NOPFN_REFAULT ((unsigned long) -3) - /* * Different kinds of faults, as returned by handle_mm_fault(). * Used to decide whether a process gets delivered SIGBUS or diff --git a/mm/memory.c b/mm/memory.c index 2302d228fe04..46dbed4b7446 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1058,11 +1058,9 @@ static inline int use_zero_page(struct vm_area_struct *vma) if (vma->vm_flags & (VM_LOCKED | VM_SHARED)) return 0; /* - * And if we have a fault or a nopfn routine, it's not an - * anonymous region. + * And if we have a fault routine, it's not an anonymous region. */ - return !vma->vm_ops || - (!vma->vm_ops->fault && !vma->vm_ops->nopfn); + return !vma->vm_ops || !vma->vm_ops->fault; } int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, @@ -1338,6 +1336,11 @@ out: * * This function should only be called from a vm_ops->fault handler, and * in that case the handler should return NULL. + * + * vma cannot be a COW mapping. + * + * As this is called only for pages that do not currently exist, we + * do not need to flush old virtual caches or the TLB. */ int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn) @@ -2501,59 +2504,6 @@ static int do_linear_fault(struct mm_struct *mm, struct vm_area_struct *vma, return __do_fault(mm, vma, address, pmd, pgoff, flags, orig_pte); } - -/* - * do_no_pfn() tries to create a new page mapping for a page without - * a struct_page backing it - * - * As this is called only for pages that do not currently exist, we - * do not need to flush old virtual caches or the TLB. - * - * We enter with non-exclusive mmap_sem (to exclude vma changes, - * but allow concurrent faults), and pte mapped but not yet locked. - * We return with mmap_sem still held, but pte unmapped and unlocked. - * - * It is expected that the ->nopfn handler always returns the same pfn - * for a given virtual mapping. - * - * Mark this `noinline' to prevent it from bloating the main pagefault code. - */ -static noinline int do_no_pfn(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, pte_t *page_table, pmd_t *pmd, - int write_access) -{ - spinlock_t *ptl; - pte_t entry; - unsigned long pfn; - - pte_unmap(page_table); - BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))); - BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags)); - - pfn = vma->vm_ops->nopfn(vma, address & PAGE_MASK); - - BUG_ON((vma->vm_flags & VM_MIXEDMAP) && pfn_valid(pfn)); - - if (unlikely(pfn == NOPFN_OOM)) - return VM_FAULT_OOM; - else if (unlikely(pfn == NOPFN_SIGBUS)) - return VM_FAULT_SIGBUS; - else if (unlikely(pfn == NOPFN_REFAULT)) - return 0; - - page_table = pte_offset_map_lock(mm, pmd, address, &ptl); - - /* Only go through if we didn't race with anybody else... */ - if (pte_none(*page_table)) { - entry = pfn_pte(pfn, vma->vm_page_prot); - if (write_access) - entry = maybe_mkwrite(pte_mkdirty(entry), vma); - set_pte_at(mm, address, page_table, entry); - } - pte_unmap_unlock(page_table, ptl); - return 0; -} - /* * Fault of a previously existing named mapping. Repopulate the pte * from the encoded file_pte if possible. This enables swappable @@ -2614,9 +2564,6 @@ static inline int handle_pte_fault(struct mm_struct *mm, if (likely(vma->vm_ops->fault)) return do_linear_fault(mm, vma, address, pte, pmd, write_access, entry); - if (unlikely(vma->vm_ops->nopfn)) - return do_no_pfn(mm, vma, address, pte, - pmd, write_access); } return do_anonymous_page(mm, vma, address, pte, pmd, write_access); -- cgit v1.2.3 From 28b2ee20c7cba812b6f2ccf6d722cf86d00a84dc Mon Sep 17 00:00:00 2001 From: Rik van Riel Date: Wed, 23 Jul 2008 21:27:05 -0700 Subject: access_process_vm device memory infrastructure In order to be able to debug things like the X server and programs using the PPC Cell SPUs, the debugger needs to be able to access device memory through ptrace and /proc/pid/mem. This patch: Add the generic_access_phys access function and put the hooks in place to allow access_process_vm to access device or PPC Cell SPU memory. [riel@redhat.com: Add documentation for the vm_ops->access function] Signed-off-by: Rik van Riel Signed-off-by: Benjamin Herrensmidt Cc: Dave Airlie Cc: Hugh Dickins Cc: Paul Mackerras Cc: Arnd Bergmann Acked-by: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/Locking | 7 ++ arch/Kconfig | 3 + arch/x86/Kconfig | 1 + arch/x86/mm/ioremap.c | 8 +++ include/asm-x86/io_32.h | 2 + include/asm-x86/io_64.h | 2 + include/linux/mm.h | 8 +++ mm/memory.c | 131 ++++++++++++++++++++++++++++++++------ 8 files changed, 144 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 8b22d7d8b991..680fb566b928 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -510,6 +510,7 @@ prototypes: void (*close)(struct vm_area_struct*); int (*fault)(struct vm_area_struct*, struct vm_fault *); int (*page_mkwrite)(struct vm_area_struct *, struct page *); + int (*access)(struct vm_area_struct *, unsigned long, void*, int, int); locking rules: BKL mmap_sem PageLocked(page) @@ -517,6 +518,7 @@ open: no yes close: no yes fault: no yes page_mkwrite: no yes no +access: no yes ->page_mkwrite() is called when a previously read-only page is about to become writeable. The file system is responsible for @@ -525,6 +527,11 @@ taking to lock out truncate, the page range should be verified to be within i_size. The page mapping should also be checked that it is not NULL. + ->access() is called when get_user_pages() fails in +acces_process_vm(), typically used to debug a process through +/proc/pid/mem or ptrace. This function is needed only for +VM_IO | VM_PFNMAP VMAs. + ================================================================================ Dubious stuff diff --git a/arch/Kconfig b/arch/Kconfig index 4d5ebbc1e72b..6093c0be58b0 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -31,6 +31,9 @@ config KRETPROBES def_bool y depends on KPROBES && HAVE_KRETPROBES +config HAVE_IOREMAP_PROT + def_bool n + config HAVE_KPROBES def_bool n diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 03980cb04291..b2ddfcf01728 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -21,6 +21,7 @@ config X86 select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_IDE select HAVE_OPROFILE + select HAVE_IOREMAP_PROT select HAVE_KPROBES select HAVE_KRETPROBES select HAVE_DYNAMIC_FTRACE diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 24c1d3c30186..016f335bbeea 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -330,6 +330,14 @@ static void __iomem *ioremap_default(resource_size_t phys_addr, return (void __iomem *)ret; } +void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size, + unsigned long prot_val) +{ + return __ioremap_caller(phys_addr, size, (prot_val & _PAGE_CACHE_MASK), + __builtin_return_address(0)); +} +EXPORT_SYMBOL(ioremap_prot); + /** * iounmap - Free a IO remapping * @addr: virtual address from ioremap_* diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h index 4df44ed54077..e876d89ac156 100644 --- a/include/asm-x86/io_32.h +++ b/include/asm-x86/io_32.h @@ -110,6 +110,8 @@ static inline void *phys_to_virt(unsigned long address) */ extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size); extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size); +extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size, + unsigned long prot_val); /* * The default ioremap() behavior is non-cached: diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h index ddd8058a5026..22995c5c5adc 100644 --- a/include/asm-x86/io_64.h +++ b/include/asm-x86/io_64.h @@ -175,6 +175,8 @@ extern void early_iounmap(void *addr, unsigned long size); */ extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size); extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size); +extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size, + unsigned long prot_val); /* * The default ioremap() behavior is non-cached: diff --git a/include/linux/mm.h b/include/linux/mm.h index eb815cfc1b35..5c7f8f64f70e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -170,6 +170,12 @@ struct vm_operations_struct { /* notification that a previously read-only page is about to become * writable, if an error is returned it will cause a SIGBUS */ int (*page_mkwrite)(struct vm_area_struct *vma, struct page *page); + + /* called by access_process_vm when get_user_pages() fails, typically + * for use by special VMAs that can switch between memory and hardware + */ + int (*access)(struct vm_area_struct *vma, unsigned long addr, + void *buf, int len, int write); #ifdef CONFIG_NUMA /* * set_policy() op must add a reference to any non-NULL @new mempolicy @@ -771,6 +777,8 @@ int copy_page_range(struct mm_struct *dst, struct mm_struct *src, struct vm_area_struct *vma); void unmap_mapping_range(struct address_space *mapping, loff_t const holebegin, loff_t const holelen, int even_cows); +int generic_access_phys(struct vm_area_struct *vma, unsigned long addr, + void *buf, int len, int write); static inline void unmap_shared_mapping_range(struct address_space *mapping, loff_t const holebegin, loff_t const holelen) diff --git a/mm/memory.c b/mm/memory.c index 46dbed4b7446..87350321e66f 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2751,6 +2751,86 @@ int in_gate_area_no_task(unsigned long addr) #endif /* __HAVE_ARCH_GATE_AREA */ +#ifdef CONFIG_HAVE_IOREMAP_PROT +static resource_size_t follow_phys(struct vm_area_struct *vma, + unsigned long address, unsigned int flags, + unsigned long *prot) +{ + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *ptep, pte; + spinlock_t *ptl; + resource_size_t phys_addr = 0; + struct mm_struct *mm = vma->vm_mm; + + VM_BUG_ON(!(vma->vm_flags & (VM_IO | VM_PFNMAP))); + + pgd = pgd_offset(mm, address); + if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd))) + goto no_page_table; + + pud = pud_offset(pgd, address); + if (pud_none(*pud) || unlikely(pud_bad(*pud))) + goto no_page_table; + + pmd = pmd_offset(pud, address); + if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) + goto no_page_table; + + /* We cannot handle huge page PFN maps. Luckily they don't exist. */ + if (pmd_huge(*pmd)) + goto no_page_table; + + ptep = pte_offset_map_lock(mm, pmd, address, &ptl); + if (!ptep) + goto out; + + pte = *ptep; + if (!pte_present(pte)) + goto unlock; + if ((flags & FOLL_WRITE) && !pte_write(pte)) + goto unlock; + phys_addr = pte_pfn(pte); + phys_addr <<= PAGE_SHIFT; /* Shift here to avoid overflow on PAE */ + + *prot = pgprot_val(pte_pgprot(pte)); + +unlock: + pte_unmap_unlock(ptep, ptl); +out: + return phys_addr; +no_page_table: + return 0; +} + +int generic_access_phys(struct vm_area_struct *vma, unsigned long addr, + void *buf, int len, int write) +{ + resource_size_t phys_addr; + unsigned long prot = 0; + void *maddr; + int offset = addr & (PAGE_SIZE-1); + + if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) + return -EINVAL; + + phys_addr = follow_phys(vma, addr, write, &prot); + + if (!phys_addr) + return -EINVAL; + + maddr = ioremap_prot(phys_addr, PAGE_SIZE, prot); + if (write) + memcpy_toio(maddr + offset, buf, len); + else + memcpy_fromio(buf, maddr + offset, len); + iounmap(maddr); + + return len; +} +#endif + /* * Access another process' address space. * Source/target buffer must be kernel space, @@ -2760,7 +2840,6 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in { struct mm_struct *mm; struct vm_area_struct *vma; - struct page *page; void *old_buf = buf; mm = get_task_mm(tsk); @@ -2772,28 +2851,44 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in while (len) { int bytes, ret, offset; void *maddr; + struct page *page = NULL; ret = get_user_pages(tsk, mm, addr, 1, write, 1, &page, &vma); - if (ret <= 0) - break; - - bytes = len; - offset = addr & (PAGE_SIZE-1); - if (bytes > PAGE_SIZE-offset) - bytes = PAGE_SIZE-offset; - - maddr = kmap(page); - if (write) { - copy_to_user_page(vma, page, addr, - maddr + offset, buf, bytes); - set_page_dirty_lock(page); + if (ret <= 0) { + /* + * Check if this is a VM_IO | VM_PFNMAP VMA, which + * we can access using slightly different code. + */ +#ifdef CONFIG_HAVE_IOREMAP_PROT + vma = find_vma(mm, addr); + if (!vma) + break; + if (vma->vm_ops && vma->vm_ops->access) + ret = vma->vm_ops->access(vma, addr, buf, + len, write); + if (ret <= 0) +#endif + break; + bytes = ret; } else { - copy_from_user_page(vma, page, addr, - buf, maddr + offset, bytes); + bytes = len; + offset = addr & (PAGE_SIZE-1); + if (bytes > PAGE_SIZE-offset) + bytes = PAGE_SIZE-offset; + + maddr = kmap(page); + if (write) { + copy_to_user_page(vma, page, addr, + maddr + offset, buf, bytes); + set_page_dirty_lock(page); + } else { + copy_from_user_page(vma, page, addr, + buf, maddr + offset, bytes); + } + kunmap(page); + page_cache_release(page); } - kunmap(page); - page_cache_release(page); len -= bytes; buf += bytes; addr += bytes; -- cgit v1.2.3 From a1f242ff460e4b50a045fa237c3c56cce9eabf83 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 23 Jul 2008 21:27:08 -0700 Subject: powerpc ioremap_prot This adds ioremap_prot and pte_pgprot() so that one can extract protection bits from a PTE and use them to ioremap_prot() (in order to support ptrace of VM_IO | VM_PFNMAP as per Rik's patch). This moves a couple of flag checks around in the ioremap implementations of arch/powerpc. There's a side effect of allowing non-cacheable and non-guarded mappings on ppc32 which before would always have _PAGE_GUARDED set whenever _PAGE_NO_CACHE is. (standard ioremap will still set _PAGE_GUARDED, but ioremap_prot will be capable of setting such a non guarded mapping). Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Rik van Riel Cc: Dave Airlie Cc: Hugh Dickins Cc: Paul Mackerras Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/Kconfig | 1 + arch/powerpc/mm/pgtable_32.c | 22 ++++++++++++++++------ arch/powerpc/mm/pgtable_64.c | 16 ++++++++++++++++ include/asm-powerpc/io.h | 5 ++++- include/asm-powerpc/pgtable-4k.h | 3 +++ include/asm-powerpc/pgtable-ppc32.h | 16 ++++++++++++++++ include/asm-powerpc/pgtable-ppc64.h | 8 ++++++++ 7 files changed, 64 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 4d7e2ba10bae..a487671c282f 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -111,6 +111,7 @@ config PPC select HAVE_DYNAMIC_FTRACE select HAVE_FTRACE select HAVE_IDE + select HAVE_IOREMAP_PROT select HAVE_KPROBES select HAVE_ARCH_KGDB select HAVE_KRETPROBES diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index c7584072dfcc..2001abdb1912 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -145,13 +145,20 @@ void pte_free(struct mm_struct *mm, pgtable_t ptepage) void __iomem * ioremap(phys_addr_t addr, unsigned long size) { - return __ioremap(addr, size, _PAGE_NO_CACHE); + return __ioremap(addr, size, _PAGE_NO_CACHE | _PAGE_GUARDED); } EXPORT_SYMBOL(ioremap); void __iomem * ioremap_flags(phys_addr_t addr, unsigned long size, unsigned long flags) { + /* writeable implies dirty for kernel addresses */ + if (flags & _PAGE_RW) + flags |= _PAGE_DIRTY | _PAGE_HWWRITE; + + /* we don't want to let _PAGE_USER and _PAGE_EXEC leak out */ + flags &= ~(_PAGE_USER | _PAGE_EXEC | _PAGE_HWEXEC); + return __ioremap(addr, size, flags); } EXPORT_SYMBOL(ioremap_flags); @@ -163,6 +170,14 @@ __ioremap(phys_addr_t addr, unsigned long size, unsigned long flags) phys_addr_t p; int err; + /* Make sure we have the base flags */ + if ((flags & _PAGE_PRESENT) == 0) + flags |= _PAGE_KERNEL; + + /* Non-cacheable page cannot be coherent */ + if (flags & _PAGE_NO_CACHE) + flags &= ~_PAGE_COHERENT; + /* * Choose an address to map it to. * Once the vmalloc system is running, we use it. @@ -219,11 +234,6 @@ __ioremap(phys_addr_t addr, unsigned long size, unsigned long flags) v = (ioremap_bot -= size); } - if ((flags & _PAGE_PRESENT) == 0) - flags |= _PAGE_KERNEL; - if (flags & _PAGE_NO_CACHE) - flags |= _PAGE_GUARDED; - /* * Should check if it is a candidate for a BAT mapping */ diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 3ef0ad2f9ca0..365e61ae5dbc 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -107,9 +107,18 @@ void __iomem * __ioremap_at(phys_addr_t pa, void *ea, unsigned long size, { unsigned long i; + /* Make sure we have the base flags */ if ((flags & _PAGE_PRESENT) == 0) flags |= pgprot_val(PAGE_KERNEL); + /* Non-cacheable page cannot be coherent */ + if (flags & _PAGE_NO_CACHE) + flags &= ~_PAGE_COHERENT; + + /* We don't support the 4K PFN hack with ioremap */ + if (flags & _PAGE_4K_PFN) + return NULL; + WARN_ON(pa & ~PAGE_MASK); WARN_ON(((unsigned long)ea) & ~PAGE_MASK); WARN_ON(size & ~PAGE_MASK); @@ -190,6 +199,13 @@ void __iomem * ioremap(phys_addr_t addr, unsigned long size) void __iomem * ioremap_flags(phys_addr_t addr, unsigned long size, unsigned long flags) { + /* writeable implies dirty for kernel addresses */ + if (flags & _PAGE_RW) + flags |= _PAGE_DIRTY; + + /* we don't want to let _PAGE_USER and _PAGE_EXEC leak out */ + flags &= ~(_PAGE_USER | _PAGE_EXEC); + if (ppc_md.ioremap) return ppc_md.ioremap(addr, size, flags); return __ioremap(addr, size, flags); diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h index 8b627823f5f9..77c7fa025e65 100644 --- a/include/asm-powerpc/io.h +++ b/include/asm-powerpc/io.h @@ -617,7 +617,8 @@ static inline void iosync(void) * and can be hooked by the platform via ppc_md * * * ioremap_flags allows to specify the page flags as an argument and can - * also be hooked by the platform via ppc_md + * also be hooked by the platform via ppc_md. ioremap_prot is the exact + * same thing as ioremap_flags. * * * ioremap_nocache is identical to ioremap * @@ -639,6 +640,8 @@ extern void __iomem *ioremap(phys_addr_t address, unsigned long size); extern void __iomem *ioremap_flags(phys_addr_t address, unsigned long size, unsigned long flags); #define ioremap_nocache(addr, size) ioremap((addr), (size)) +#define ioremap_prot(addr, size, prot) ioremap_flags((addr), (size), (prot)) + extern void iounmap(volatile void __iomem *addr); extern void __iomem *__ioremap(phys_addr_t, unsigned long size, diff --git a/include/asm-powerpc/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h index fd2090dc1dce..c9601dfb4a1e 100644 --- a/include/asm-powerpc/pgtable-4k.h +++ b/include/asm-powerpc/pgtable-4k.h @@ -51,6 +51,9 @@ #define _PAGE_HPTEFLAGS (_PAGE_BUSY | _PAGE_HASHPTE | \ _PAGE_SECONDARY | _PAGE_GROUP_IX) +/* There is no 4K PFN hack on 4K pages */ +#define _PAGE_4K_PFN 0 + /* PAGE_MASK gives the right answer below, but only by accident */ /* It should be preserving the high 48 bits and then specifically */ /* preserving _PAGE_SECONDARY | _PAGE_GROUP_IX */ diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h index 3a96d001cb75..bdbab72f3ebc 100644 --- a/include/asm-powerpc/pgtable-ppc32.h +++ b/include/asm-powerpc/pgtable-ppc32.h @@ -395,6 +395,12 @@ extern int icache_44x_need_flush; #ifndef _PAGE_EXEC #define _PAGE_EXEC 0 #endif +#ifndef _PAGE_ENDIAN +#define _PAGE_ENDIAN 0 +#endif +#ifndef _PAGE_COHERENT +#define _PAGE_COHERENT 0 +#endif #ifndef _PMD_PRESENT_MASK #define _PMD_PRESENT_MASK _PMD_PRESENT #endif @@ -405,6 +411,12 @@ extern int icache_44x_need_flush; #define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) + +#define PAGE_PROT_BITS __pgprot(_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \ + _PAGE_WRITETHRU | _PAGE_ENDIAN | \ + _PAGE_USER | _PAGE_ACCESSED | \ + _PAGE_RW | _PAGE_HWWRITE | _PAGE_DIRTY | \ + _PAGE_EXEC | _PAGE_HWEXEC) /* * Note: the _PAGE_COHERENT bit automatically gets set in the hardware * PTE if CONFIG_SMP is defined (hash_page does this); there is no need @@ -538,6 +550,10 @@ static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; return pte; } static inline pte_t pte_mkspecial(pte_t pte) { return pte; } +static inline unsigned long pte_pgprot(pte_t pte) +{ + return __pgprot(pte_val(pte)) & PAGE_PROT_BITS; +} static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h index ab98a9c80b28..ba8000352b9a 100644 --- a/include/asm-powerpc/pgtable-ppc64.h +++ b/include/asm-powerpc/pgtable-ppc64.h @@ -117,6 +117,10 @@ #define PAGE_AGP __pgprot(_PAGE_BASE | _PAGE_WRENABLE | _PAGE_NO_CACHE) #define HAVE_PAGE_AGP +#define PAGE_PROT_BITS __pgprot(_PAGE_GUARDED | _PAGE_COHERENT | \ + _PAGE_NO_CACHE | _PAGE_WRITETHRU | \ + _PAGE_4K_PFN | _PAGE_RW | _PAGE_USER | \ + _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_EXEC) /* PTEIDX nibble */ #define _PTEIDX_SECONDARY 0x8 #define _PTEIDX_GROUP_IX 0x7 @@ -262,6 +266,10 @@ static inline pte_t pte_mkhuge(pte_t pte) { return pte; } static inline pte_t pte_mkspecial(pte_t pte) { return pte; } +static inline unsigned long pte_pgprot(pte_t pte) +{ + return __pgprot(pte_val(pte)) & PAGE_PROT_BITS; +} /* Atomic PTE updates */ static inline unsigned long pte_update(struct mm_struct *mm, -- cgit v1.2.3 From 42b7772812d15b86543a23b82bd6070eef9a08b1 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 23 Jul 2008 21:27:10 -0700 Subject: mm: remove double indirection on tlb parameter to free_pgd_range() & Co The double indirection here is not needed anywhere and hence (at least) confusing. Signed-off-by: Jan Beulich Cc: Hugh Dickins Cc: Nick Piggin Cc: Christoph Lameter Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Luck, Tony" Cc: Paul Mundt Cc: "David S. Miller" Acked-by: Jeremy Fitzhardinge Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/mm/hugetlbpage.c | 2 +- arch/powerpc/mm/hugetlbpage.c | 8 ++++---- fs/exec.c | 4 ++-- include/asm-ia64/hugetlb.h | 2 +- include/asm-powerpc/hugetlb.h | 2 +- include/asm-sh/hugetlb.h | 2 +- include/asm-sparc/hugetlb.h | 2 +- include/asm-x86/hugetlb.h | 2 +- include/linux/mm.h | 4 +--- mm/internal.h | 3 +++ mm/memory.c | 10 ++++++---- mm/mmap.c | 6 ++++-- 12 files changed, 26 insertions(+), 21 deletions(-) (limited to 'include') diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index d3ce8f3bcaa6..cd49e2860eef 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c @@ -112,7 +112,7 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int wri return NULL; } -void hugetlb_free_pgd_range(struct mmu_gather **tlb, +void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling) { diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 0d12fba31bc5..1a96cc891cf5 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -255,7 +255,7 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, * * Must be called with pagetable lock held. */ -void hugetlb_free_pgd_range(struct mmu_gather **tlb, +void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling) { @@ -315,13 +315,13 @@ void hugetlb_free_pgd_range(struct mmu_gather **tlb, return; start = addr; - pgd = pgd_offset((*tlb)->mm, addr); + pgd = pgd_offset(tlb->mm, addr); do { - BUG_ON(get_slice_psize((*tlb)->mm, addr) != mmu_huge_psize); + BUG_ON(get_slice_psize(tlb->mm, addr) != mmu_huge_psize); next = pgd_addr_end(addr, end); if (pgd_none_or_clear_bad(pgd)) continue; - hugetlb_free_pud_range(*tlb, pgd, addr, next, floor, ceiling); + hugetlb_free_pud_range(tlb, pgd, addr, next, floor, ceiling); } while (pgd++, addr = next, addr != end); } diff --git a/fs/exec.c b/fs/exec.c index fd9234379e8d..190ed1f92774 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -541,7 +541,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) /* * when the old and new regions overlap clear from new_end. */ - free_pgd_range(&tlb, new_end, old_end, new_end, + free_pgd_range(tlb, new_end, old_end, new_end, vma->vm_next ? vma->vm_next->vm_start : 0); } else { /* @@ -550,7 +550,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) * have constraints on va-space that make this illegal (IA64) - * for the others its just a little faster. */ - free_pgd_range(&tlb, old_start, old_end, new_end, + free_pgd_range(tlb, old_start, old_end, new_end, vma->vm_next ? vma->vm_next->vm_start : 0); } tlb_finish_mmu(tlb, new_end, old_end); diff --git a/include/asm-ia64/hugetlb.h b/include/asm-ia64/hugetlb.h index f28a9701f1cf..e9d1e5e2382d 100644 --- a/include/asm-ia64/hugetlb.h +++ b/include/asm-ia64/hugetlb.h @@ -4,7 +4,7 @@ #include -void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr, +void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling); diff --git a/include/asm-powerpc/hugetlb.h b/include/asm-powerpc/hugetlb.h index be32ff02f4a0..0a37aa5ecaa5 100644 --- a/include/asm-powerpc/hugetlb.h +++ b/include/asm-powerpc/hugetlb.h @@ -7,7 +7,7 @@ int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr, unsigned long len); -void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr, +void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling); diff --git a/include/asm-sh/hugetlb.h b/include/asm-sh/hugetlb.h index 02402303d89b..fb30018938c7 100644 --- a/include/asm-sh/hugetlb.h +++ b/include/asm-sh/hugetlb.h @@ -26,7 +26,7 @@ static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { } -static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb, +static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling) diff --git a/include/asm-sparc/hugetlb.h b/include/asm-sparc/hugetlb.h index 412af58926a0..aeb92374ca3d 100644 --- a/include/asm-sparc/hugetlb.h +++ b/include/asm-sparc/hugetlb.h @@ -31,7 +31,7 @@ static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) return 0; } -static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb, +static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling) diff --git a/include/asm-x86/hugetlb.h b/include/asm-x86/hugetlb.h index 14171a4924f6..7eed6e0883bf 100644 --- a/include/asm-x86/hugetlb.h +++ b/include/asm-x86/hugetlb.h @@ -26,7 +26,7 @@ static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { } -static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb, +static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling) diff --git a/include/linux/mm.h b/include/linux/mm.h index 5c7f8f64f70e..f8071097302a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -769,10 +769,8 @@ struct mm_walk { int walk_page_range(unsigned long addr, unsigned long end, struct mm_walk *walk); -void free_pgd_range(struct mmu_gather **tlb, unsigned long addr, +void free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling); -void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *start_vma, - unsigned long floor, unsigned long ceiling); int copy_page_range(struct mm_struct *dst, struct mm_struct *src, struct vm_area_struct *vma); void unmap_mapping_range(struct address_space *mapping, diff --git a/mm/internal.h b/mm/internal.h index 50807e12490e..858ad01864dc 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -13,6 +13,9 @@ #include +void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma, + unsigned long floor, unsigned long ceiling); + static inline void set_page_count(struct page *page, int v) { atomic_set(&page->_count, v); diff --git a/mm/memory.c b/mm/memory.c index 87350321e66f..82f3f1c5cf17 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -61,6 +61,8 @@ #include #include +#include "internal.h" + #ifndef CONFIG_NEED_MULTIPLE_NODES /* use the per-pgdat data instead for discontigmem - mbligh */ unsigned long max_mapnr; @@ -211,7 +213,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, * * Must be called with pagetable lock held. */ -void free_pgd_range(struct mmu_gather **tlb, +void free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling) { @@ -262,16 +264,16 @@ void free_pgd_range(struct mmu_gather **tlb, return; start = addr; - pgd = pgd_offset((*tlb)->mm, addr); + pgd = pgd_offset(tlb->mm, addr); do { next = pgd_addr_end(addr, end); if (pgd_none_or_clear_bad(pgd)) continue; - free_pud_range(*tlb, pgd, addr, next, floor, ceiling); + free_pud_range(tlb, pgd, addr, next, floor, ceiling); } while (pgd++, addr = next, addr != end); } -void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *vma, +void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma, unsigned long floor, unsigned long ceiling) { while (vma) { diff --git a/mm/mmap.c b/mm/mmap.c index 1d102b956fd8..75e0d0673d78 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -32,6 +32,8 @@ #include #include +#include "internal.h" + #ifndef arch_mmap_check #define arch_mmap_check(addr, len, flags) (0) #endif @@ -1763,7 +1765,7 @@ static void unmap_region(struct mm_struct *mm, update_hiwater_rss(mm); unmap_vmas(&tlb, vma, start, end, &nr_accounted, NULL); vm_unacct_memory(nr_accounted); - free_pgtables(&tlb, vma, prev? prev->vm_end: FIRST_USER_ADDRESS, + free_pgtables(tlb, vma, prev? prev->vm_end: FIRST_USER_ADDRESS, next? next->vm_start: 0); tlb_finish_mmu(tlb, start, end); } @@ -2063,7 +2065,7 @@ void exit_mmap(struct mm_struct *mm) /* Use -1 here to ensure all VMAs in the mm are unmapped */ end = unmap_vmas(&tlb, vma, 0, -1, &nr_accounted, NULL); vm_unacct_memory(nr_accounted); - free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0); + free_pgtables(tlb, vma, FIRST_USER_ADDRESS, 0); tlb_finish_mmu(tlb, 0, end); /* -- cgit v1.2.3 From da3bbdd4632c0171406b2677e31494afa5bde2f8 Mon Sep 17 00:00:00 2001 From: Kentaro Makita Date: Wed, 23 Jul 2008 21:27:13 -0700 Subject: fix soft lock up at NFS mount via per-SB LRU-list of unused dentries [Summary] Split LRU-list of unused dentries to one per superblock to avoid soft lock up during NFS mounts and remounting of any filesystem. Previously I posted here: http://lkml.org/lkml/2008/3/5/590 [Descriptions] - background dentry_unused is a list of dentries which are not referenced. dentry_unused grows up when references on directories or files are released. This list can be very long if there is huge free memory. - the problem When shrink_dcache_sb() is called, it scans all dentry_unused linearly under spin_lock(), and if dentry->d_sb is differnt from given superblock, scan next dentry. This scan costs very much if there are many entries, and very ineffective if there are many superblocks. IOW, When we need to shrink unused dentries on one dentry, but scans unused dentries on all superblocks in the system. For example, we scan 500 dentries to unmount a filesystem, but scans 1,000,000 or more unused dentries on other superblocks. In our case , At mounting NFS*, shrink_dcache_sb() is called to shrink unused dentries on NFS, but scans 100,000,000 unused dentries on superblocks in the system such as local ext3 filesystems. I hear NFS mounting took 1 min on some system in use. * : NFS uses virtual filesystem in rpc layer, so NFS is affected by this problem. 100,000,000 is possible number on large systems. Per-superblock LRU of unused dentried can reduce the cost in reasonable manner. - How to fix I found this problem is solved by David Chinner's "Per-superblock unused dentry LRU lists V3"(1), so I rebase it and add some fix to reclaim with fairness, which is in Andrew Morton's comments(2). 1) http://lkml.org/lkml/2006/5/25/318 2) http://lkml.org/lkml/2006/5/25/320 Split LRU-list of unused dentries to each superblocks. Then, NFS mounting will check dentries under a superblock instead of all. But this spliting will break LRU of dentry-unused. So, I've attempted to make reclaim unused dentrins with fairness by calculate number of dentries to scan on this sb based on following way number of dentries to scan on this sb = count * (number of dentries on this sb / number of dentries in the machine) - ToDo - I have to measuring performance number and do stress tests. - When unmount occurs during prune_dcache(), scanning on same superblock, It is unable to reach next superblock because it is gone away. We restart scannig superblock from first one, it causes unfairness of reclaim unused dentries on first superblock. But I think this happens very rarely. - Test Results Result on 6GB boxes with excessive unused dentries. Without patch: $ cat /proc/sys/fs/dentry-state 10181835 10180203 45 0 0 0 # mount -t nfs 10.124.60.70:/work/kernel-src nfs real 0m1.830s user 0m0.001s sys 0m1.653s With this patch: $ cat /proc/sys/fs/dentry-state 10236610 10234751 45 0 0 0 # mount -t nfs 10.124.60.70:/work/kernel-src nfs real 0m0.106s user 0m0.002s sys 0m0.032s [akpm@linux-foundation.org: fix comments] Signed-off-by: Kentaro Makita Cc: Neil Brown Cc: Trond Myklebust Cc: David Chinner Cc: "J. Bruce Fields" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/dcache.c | 335 ++++++++++++++++++++++++++++------------------------- fs/super.c | 1 + include/linux/fs.h | 4 + 3 files changed, 185 insertions(+), 155 deletions(-) (limited to 'include') diff --git a/fs/dcache.c b/fs/dcache.c index 6068c25b393c..3818d6ab76ca 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -61,7 +61,6 @@ static struct kmem_cache *dentry_cache __read_mostly; static unsigned int d_hash_mask __read_mostly; static unsigned int d_hash_shift __read_mostly; static struct hlist_head *dentry_hashtable __read_mostly; -static LIST_HEAD(dentry_unused); /* Statistics gathering. */ struct dentry_stat_t dentry_stat = { @@ -96,14 +95,6 @@ static void d_free(struct dentry *dentry) call_rcu(&dentry->d_u.d_rcu, d_callback); } -static void dentry_lru_remove(struct dentry *dentry) -{ - if (!list_empty(&dentry->d_lru)) { - list_del_init(&dentry->d_lru); - dentry_stat.nr_unused--; - } -} - /* * Release the dentry's inode, using the filesystem * d_iput() operation if defined. @@ -130,6 +121,41 @@ static void dentry_iput(struct dentry * dentry) } } +/* + * dentry_lru_(add|add_tail|del|del_init) must be called with dcache_lock held. + */ +static void dentry_lru_add(struct dentry *dentry) +{ + list_add(&dentry->d_lru, &dentry->d_sb->s_dentry_lru); + dentry->d_sb->s_nr_dentry_unused++; + dentry_stat.nr_unused++; +} + +static void dentry_lru_add_tail(struct dentry *dentry) +{ + list_add_tail(&dentry->d_lru, &dentry->d_sb->s_dentry_lru); + dentry->d_sb->s_nr_dentry_unused++; + dentry_stat.nr_unused++; +} + +static void dentry_lru_del(struct dentry *dentry) +{ + if (!list_empty(&dentry->d_lru)) { + list_del(&dentry->d_lru); + dentry->d_sb->s_nr_dentry_unused--; + dentry_stat.nr_unused--; + } +} + +static void dentry_lru_del_init(struct dentry *dentry) +{ + if (likely(!list_empty(&dentry->d_lru))) { + list_del_init(&dentry->d_lru); + dentry->d_sb->s_nr_dentry_unused--; + dentry_stat.nr_unused--; + } +} + /** * d_kill - kill dentry and return parent * @dentry: dentry to kill @@ -212,8 +238,7 @@ repeat: goto kill_it; if (list_empty(&dentry->d_lru)) { dentry->d_flags |= DCACHE_REFERENCED; - list_add(&dentry->d_lru, &dentry_unused); - dentry_stat.nr_unused++; + dentry_lru_add(dentry); } spin_unlock(&dentry->d_lock); spin_unlock(&dcache_lock); @@ -222,7 +247,8 @@ repeat: unhash_it: __d_drop(dentry); kill_it: - dentry_lru_remove(dentry); + /* if dentry was on the d_lru list delete it from there */ + dentry_lru_del(dentry); dentry = d_kill(dentry); if (dentry) goto repeat; @@ -290,7 +316,7 @@ int d_invalidate(struct dentry * dentry) static inline struct dentry * __dget_locked(struct dentry *dentry) { atomic_inc(&dentry->d_count); - dentry_lru_remove(dentry); + dentry_lru_del_init(dentry); return dentry; } @@ -406,133 +432,167 @@ static void prune_one_dentry(struct dentry * dentry) if (dentry->d_op && dentry->d_op->d_delete) dentry->d_op->d_delete(dentry); - dentry_lru_remove(dentry); + dentry_lru_del_init(dentry); __d_drop(dentry); dentry = d_kill(dentry); spin_lock(&dcache_lock); } } -/** - * prune_dcache - shrink the dcache - * @count: number of entries to try and free - * @sb: if given, ignore dentries for other superblocks - * which are being unmounted. - * - * Shrink the dcache. This is done when we need - * more memory, or simply when we need to unmount - * something (at which point we need to unuse - * all dentries). - * - * This function may fail to free any resources if - * all the dentries are in use. +/* + * Shrink the dentry LRU on a given superblock. + * @sb : superblock to shrink dentry LRU. + * @count: If count is NULL, we prune all dentries on superblock. + * @flags: If flags is non-zero, we need to do special processing based on + * which flags are set. This means we don't need to maintain multiple + * similar copies of this loop. */ - -static void prune_dcache(int count, struct super_block *sb) +static void __shrink_dcache_sb(struct super_block *sb, int *count, int flags) { - spin_lock(&dcache_lock); - for (; count ; count--) { - struct dentry *dentry; - struct list_head *tmp; - struct rw_semaphore *s_umount; - - cond_resched_lock(&dcache_lock); + LIST_HEAD(referenced); + LIST_HEAD(tmp); + struct dentry *dentry; + int cnt = 0; - tmp = dentry_unused.prev; - if (sb) { - /* Try to find a dentry for this sb, but don't try - * too hard, if they aren't near the tail they will - * be moved down again soon + BUG_ON(!sb); + BUG_ON((flags & DCACHE_REFERENCED) && count == NULL); + spin_lock(&dcache_lock); + if (count != NULL) + /* called from prune_dcache() and shrink_dcache_parent() */ + cnt = *count; +restart: + if (count == NULL) + list_splice_init(&sb->s_dentry_lru, &tmp); + else { + while (!list_empty(&sb->s_dentry_lru)) { + dentry = list_entry(sb->s_dentry_lru.prev, + struct dentry, d_lru); + BUG_ON(dentry->d_sb != sb); + + spin_lock(&dentry->d_lock); + /* + * If we are honouring the DCACHE_REFERENCED flag and + * the dentry has this flag set, don't free it. Clear + * the flag and put it back on the LRU. */ - int skip = count; - while (skip && tmp != &dentry_unused && - list_entry(tmp, struct dentry, d_lru)->d_sb != sb) { - skip--; - tmp = tmp->prev; + if ((flags & DCACHE_REFERENCED) + && (dentry->d_flags & DCACHE_REFERENCED)) { + dentry->d_flags &= ~DCACHE_REFERENCED; + list_move_tail(&dentry->d_lru, &referenced); + spin_unlock(&dentry->d_lock); + } else { + list_move_tail(&dentry->d_lru, &tmp); + spin_unlock(&dentry->d_lock); + cnt--; + if (!cnt) + break; } } - if (tmp == &dentry_unused) - break; - list_del_init(tmp); - prefetch(dentry_unused.prev); - dentry_stat.nr_unused--; - dentry = list_entry(tmp, struct dentry, d_lru); - - spin_lock(&dentry->d_lock); + } + while (!list_empty(&tmp)) { + dentry = list_entry(tmp.prev, struct dentry, d_lru); + dentry_lru_del_init(dentry); + spin_lock(&dentry->d_lock); /* * We found an inuse dentry which was not removed from - * dentry_unused because of laziness during lookup. Do not free - * it - just keep it off the dentry_unused list. + * the LRU because of laziness during lookup. Do not free + * it - just keep it off the LRU list. */ - if (atomic_read(&dentry->d_count)) { - spin_unlock(&dentry->d_lock); + if (atomic_read(&dentry->d_count)) { + spin_unlock(&dentry->d_lock); continue; } - /* If the dentry was recently referenced, don't free it. */ - if (dentry->d_flags & DCACHE_REFERENCED) { - dentry->d_flags &= ~DCACHE_REFERENCED; - list_add(&dentry->d_lru, &dentry_unused); - dentry_stat.nr_unused++; - spin_unlock(&dentry->d_lock); + prune_one_dentry(dentry); + /* dentry->d_lock was dropped in prune_one_dentry() */ + cond_resched_lock(&dcache_lock); + } + if (count == NULL && !list_empty(&sb->s_dentry_lru)) + goto restart; + if (count != NULL) + *count = cnt; + if (!list_empty(&referenced)) + list_splice(&referenced, &sb->s_dentry_lru); + spin_unlock(&dcache_lock); +} + +/** + * prune_dcache - shrink the dcache + * @count: number of entries to try to free + * + * Shrink the dcache. This is done when we need more memory, or simply when we + * need to unmount something (at which point we need to unuse all dentries). + * + * This function may fail to free any resources if all the dentries are in use. + */ +static void prune_dcache(int count) +{ + struct super_block *sb; + int w_count; + int unused = dentry_stat.nr_unused; + int prune_ratio; + int pruned; + + if (unused == 0 || count == 0) + return; + spin_lock(&dcache_lock); +restart: + if (count >= unused) + prune_ratio = 1; + else + prune_ratio = unused / count; + spin_lock(&sb_lock); + list_for_each_entry(sb, &super_blocks, s_list) { + if (sb->s_nr_dentry_unused == 0) continue; - } - /* - * If the dentry is not DCACHED_REFERENCED, it is time - * to remove it from the dcache, provided the super block is - * NULL (which means we are trying to reclaim memory) - * or this dentry belongs to the same super block that - * we want to shrink. - */ - /* - * If this dentry is for "my" filesystem, then I can prune it - * without taking the s_umount lock (I already hold it). + sb->s_count++; + /* Now, we reclaim unused dentrins with fairness. + * We reclaim them same percentage from each superblock. + * We calculate number of dentries to scan on this sb + * as follows, but the implementation is arranged to avoid + * overflows: + * number of dentries to scan on this sb = + * count * (number of dentries on this sb / + * number of dentries in the machine) */ - if (sb && dentry->d_sb == sb) { - prune_one_dentry(dentry); - continue; - } + spin_unlock(&sb_lock); + if (prune_ratio != 1) + w_count = (sb->s_nr_dentry_unused / prune_ratio) + 1; + else + w_count = sb->s_nr_dentry_unused; + pruned = w_count; /* - * ...otherwise we need to be sure this filesystem isn't being - * unmounted, otherwise we could race with - * generic_shutdown_super(), and end up holding a reference to - * an inode while the filesystem is unmounted. - * So we try to get s_umount, and make sure s_root isn't NULL. - * (Take a local copy of s_umount to avoid a use-after-free of - * `dentry'). + * We need to be sure this filesystem isn't being unmounted, + * otherwise we could race with generic_shutdown_super(), and + * end up holding a reference to an inode while the filesystem + * is unmounted. So we try to get s_umount, and make sure + * s_root isn't NULL. */ - s_umount = &dentry->d_sb->s_umount; - if (down_read_trylock(s_umount)) { - if (dentry->d_sb->s_root != NULL) { - prune_one_dentry(dentry); - up_read(s_umount); - continue; + if (down_read_trylock(&sb->s_umount)) { + if ((sb->s_root != NULL) && + (!list_empty(&sb->s_dentry_lru))) { + spin_unlock(&dcache_lock); + __shrink_dcache_sb(sb, &w_count, + DCACHE_REFERENCED); + pruned -= w_count; + spin_lock(&dcache_lock); } - up_read(s_umount); + up_read(&sb->s_umount); } - spin_unlock(&dentry->d_lock); + spin_lock(&sb_lock); + count -= pruned; /* - * Insert dentry at the head of the list as inserting at the - * tail leads to a cycle. + * restart only when sb is no longer on the list and + * we have more work to do. */ - list_add(&dentry->d_lru, &dentry_unused); - dentry_stat.nr_unused++; + if (__put_super_and_need_restart(sb) && count > 0) { + spin_unlock(&sb_lock); + goto restart; + } } + spin_unlock(&sb_lock); spin_unlock(&dcache_lock); } -/* - * Shrink the dcache for the specified super block. - * This allows us to unmount a device without disturbing - * the dcache for the other devices. - * - * This implementation makes just two traversals of the - * unused list. On the first pass we move the selected - * dentries to the most recent end, and on the second - * pass we free them. The second pass must restart after - * each dput(), but since the target dentries are all at - * the end, it's really just a single traversal. - */ - /** * shrink_dcache_sb - shrink dcache for a superblock * @sb: superblock @@ -541,44 +601,9 @@ static void prune_dcache(int count, struct super_block *sb) * is used to free the dcache before unmounting a file * system */ - void shrink_dcache_sb(struct super_block * sb) { - struct list_head *tmp, *next; - struct dentry *dentry; - - /* - * Pass one ... move the dentries for the specified - * superblock to the most recent end of the unused list. - */ - spin_lock(&dcache_lock); - list_for_each_prev_safe(tmp, next, &dentry_unused) { - dentry = list_entry(tmp, struct dentry, d_lru); - if (dentry->d_sb != sb) - continue; - list_move_tail(tmp, &dentry_unused); - } - - /* - * Pass two ... free the dentries for this superblock. - */ -repeat: - list_for_each_prev_safe(tmp, next, &dentry_unused) { - dentry = list_entry(tmp, struct dentry, d_lru); - if (dentry->d_sb != sb) - continue; - dentry_stat.nr_unused--; - list_del_init(tmp); - spin_lock(&dentry->d_lock); - if (atomic_read(&dentry->d_count)) { - spin_unlock(&dentry->d_lock); - continue; - } - prune_one_dentry(dentry); - cond_resched_lock(&dcache_lock); - goto repeat; - } - spin_unlock(&dcache_lock); + __shrink_dcache_sb(sb, NULL, 0); } /* @@ -595,7 +620,7 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry) /* detach this root from the system */ spin_lock(&dcache_lock); - dentry_lru_remove(dentry); + dentry_lru_del_init(dentry); __d_drop(dentry); spin_unlock(&dcache_lock); @@ -609,7 +634,7 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry) spin_lock(&dcache_lock); list_for_each_entry(loop, &dentry->d_subdirs, d_u.d_child) { - dentry_lru_remove(loop); + dentry_lru_del_init(loop); __d_drop(loop); cond_resched_lock(&dcache_lock); } @@ -791,14 +816,13 @@ resume: struct dentry *dentry = list_entry(tmp, struct dentry, d_u.d_child); next = tmp->next; - dentry_lru_remove(dentry); + dentry_lru_del_init(dentry); /* * move only zero ref count dentries to the end * of the unused list for prune_dcache */ if (!atomic_read(&dentry->d_count)) { - list_add_tail(&dentry->d_lru, &dentry_unused); - dentry_stat.nr_unused++; + dentry_lru_add_tail(dentry); found++; } @@ -840,10 +864,11 @@ out: void shrink_dcache_parent(struct dentry * parent) { + struct super_block *sb = parent->d_sb; int found; while ((found = select_parent(parent)) != 0) - prune_dcache(found, parent->d_sb); + __shrink_dcache_sb(sb, &found, 0); } /* @@ -863,7 +888,7 @@ static int shrink_dcache_memory(int nr, gfp_t gfp_mask) if (nr) { if (!(gfp_mask & __GFP_FS)) return -1; - prune_dcache(nr, NULL); + prune_dcache(nr); } return (dentry_stat.nr_unused / 100) * sysctl_vfs_cache_pressure; } @@ -1215,7 +1240,7 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry) * rcu_read_lock() and rcu_read_unlock() are used to disable preemption while * lookup is going on. * - * dentry_unused list is not updated even if lookup finds the required dentry + * The dentry unused LRU is not updated even if lookup finds the required dentry * in there. It is updated in places such as prune_dcache, shrink_dcache_sb, * select_parent and __dget_locked. This laziness saves lookup from dcache_lock * acquisition. diff --git a/fs/super.c b/fs/super.c index 453877c5697b..e931ae9511fe 100644 --- a/fs/super.c +++ b/fs/super.c @@ -70,6 +70,7 @@ static struct super_block *alloc_super(struct file_system_type *type) INIT_LIST_HEAD(&s->s_instances); INIT_HLIST_HEAD(&s->s_anon); INIT_LIST_HEAD(&s->s_inodes); + INIT_LIST_HEAD(&s->s_dentry_lru); init_rwsem(&s->s_umount); mutex_init(&s->s_lock); lockdep_set_class(&s->s_umount, &type->s_umount_key); diff --git a/include/linux/fs.h b/include/linux/fs.h index ff54ae4933f3..e5e6a244096c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1025,6 +1025,7 @@ extern int send_sigurg(struct fown_struct *fown); extern struct list_head super_blocks; extern spinlock_t sb_lock; +#define sb_entry(list) list_entry((list), struct super_block, s_list) #define S_BIAS (1<<30) struct super_block { struct list_head s_list; /* Keep this first */ @@ -1058,6 +1059,9 @@ struct super_block { struct list_head s_more_io; /* parked for more writeback */ struct hlist_head s_anon; /* anonymous dentries for (nfs) exporting */ struct list_head s_files; + /* s_dentry_lru and s_nr_dentry_unused are protected by dcache_lock */ + struct list_head s_dentry_lru; /* unused dentry lru */ + int s_nr_dentry_unused; /* # of dentry on lru */ struct block_device *s_bdev; struct mtd_info *s_mtd; -- cgit v1.2.3 From 0cad47cf13bc2e9142d3a11d9f50523797d0d4ea Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Wed, 23 Jul 2008 21:27:16 -0700 Subject: page-flags: record page flag overlays explicitly With the recent page flag reorganisation we have a single enum which defines the valid page flags and their values, nice and clear. However there are a number of bits which are overloaded by different subsystems. Firstly there is PG_owner_priv_1 which is used by filesystems and by XEN. Secondly both SLOB and SLUB use a couple of extra page bits to manage internal state for pages they own; both overlay other bits. All of these "aliases" are scattered about the source making it very hard for a reader to know if the bits are safe to rely on in all contexts; confusion here is bad. As we now have a single place where the bits are clearly assigned it makes sense to clarify the reuse of bits by making the aliases explicit and visible with the original bit assignments. This patch creates explicit aliases within the enum itself for the overloaded bits, creates standard bit accessors PageFoo etc. and uses those throughout. This version pulls the bit manipulation out to standard named page bit accessors as suggested by Christoph, it retains the explicit mapping to the overlayed bits. A fusion of both ideas. This has been SLUB and SLOB have been compile tested on x86_64 only, and SLUB boot tested. If people feel this is worth doing then I can run a fuller set of testing. This patch: Some page flags are used for more than one purpose, for example PG_owner_priv_1. Currently there are individual accessors for each user, each built using the common flag name far away from the bit definitions. This makes it hard to see all possible uses of these bits. Now that we have a single enum to generate the bit orders it makes sense to express overlays in the same place. So create per use aliases for this bit in the main page-flags enum and use those in the accessors. [akpm@linux-foundation.org: fix xen] Signed-off-by: Andy Whitcroft Cc: Pekka Enberg Cc: Christoph Lameter Cc: Matt Mackall Cc: Nick Piggin Cc: KAMEZAWA Hiroyuki Reviewed-by: KOSAKI Motohiro Cc: Rik van Riel Cc: Jeremy Fitzhardinge Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page-flags.h | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 0d2a4e7012aa..7d8db1233e44 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -96,7 +96,14 @@ enum pageflags { #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PG_uncached, /* Page has been mapped as uncached */ #endif - __NR_PAGEFLAGS + __NR_PAGEFLAGS, + + /* Filesystems */ + PG_checked = PG_owner_priv_1, + + /* XEN */ + PG_pinned = PG_owner_priv_1, + PG_savepinned = PG_dirty, }; #ifndef __GENERATING_BOUNDS_H @@ -155,9 +162,9 @@ PAGEFLAG(Dirty, dirty) TESTSCFLAG(Dirty, dirty) __CLEARPAGEFLAG(Dirty, dirty) PAGEFLAG(LRU, lru) __CLEARPAGEFLAG(LRU, lru) PAGEFLAG(Active, active) __CLEARPAGEFLAG(Active, active) __PAGEFLAG(Slab, slab) -PAGEFLAG(Checked, owner_priv_1) /* Used by some filesystems */ -PAGEFLAG(Pinned, owner_priv_1) TESTSCFLAG(Pinned, owner_priv_1) /* Xen */ -PAGEFLAG(SavePinned, dirty); /* Xen */ +PAGEFLAG(Checked, checked) /* Used by some filesystems */ +PAGEFLAG(Pinned, pinned) TESTSCFLAG(Pinned, pinned) /* Xen */ +PAGEFLAG(SavePinned, savepinned); /* Xen */ PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved) PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private) __SETPAGEFLAG(Private, private) -- cgit v1.2.3 From 8a38082d21cbc5ec961da7dda195e98a9a064dcf Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Wed, 23 Jul 2008 21:27:18 -0700 Subject: slub: record page flag overlays explicitly SLUB reuses two page bits for internal purposes, it overlays PG_active and PG_error. This is hidden away in slub.c. Document these overlays explicitly in the main page-flags enum along with all the others. Signed-off-by: Andy Whitcroft Cc: Pekka Enberg Cc: Christoph Lameter Cc: Matt Mackall Cc: Nick Piggin Tested-by: KOSAKI Motohiro Cc: KOSAKI Motohiro Cc: Rik van Riel Cc: Jeremy Fitzhardinge Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page-flags.h | 7 +++++ mm/slub.c | 65 ++++++++++++---------------------------------- 2 files changed, 24 insertions(+), 48 deletions(-) (limited to 'include') diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 7d8db1233e44..3fc586b7b90b 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -104,6 +104,10 @@ enum pageflags { /* XEN */ PG_pinned = PG_owner_priv_1, PG_savepinned = PG_dirty, + + /* SLUB */ + PG_slub_frozen = PG_active, + PG_slub_debug = PG_error, }; #ifndef __GENERATING_BOUNDS_H @@ -169,6 +173,9 @@ PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved) PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private) __SETPAGEFLAG(Private, private) +__PAGEFLAG(SlubFrozen, slub_frozen) +__PAGEFLAG(SlubDebug, slub_debug) + /* * Only test-and-set exist for PG_writeback. The unconditional operators are * risky: they bypass page accounting. diff --git a/mm/slub.c b/mm/slub.c index 6d4a49c1ff2f..77c21cf53ff9 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -102,44 +102,12 @@ * the fast path and disables lockless freelists. */ -#define FROZEN (1 << PG_active) - #ifdef CONFIG_SLUB_DEBUG -#define SLABDEBUG (1 << PG_error) +#define SLABDEBUG 1 #else #define SLABDEBUG 0 #endif -static inline int SlabFrozen(struct page *page) -{ - return page->flags & FROZEN; -} - -static inline void SetSlabFrozen(struct page *page) -{ - page->flags |= FROZEN; -} - -static inline void ClearSlabFrozen(struct page *page) -{ - page->flags &= ~FROZEN; -} - -static inline int SlabDebug(struct page *page) -{ - return page->flags & SLABDEBUG; -} - -static inline void SetSlabDebug(struct page *page) -{ - page->flags |= SLABDEBUG; -} - -static inline void ClearSlabDebug(struct page *page) -{ - page->flags &= ~SLABDEBUG; -} - /* * Issues still to be resolved: * @@ -971,7 +939,7 @@ static int free_debug_processing(struct kmem_cache *s, struct page *page, } /* Special debug activities for freeing objects */ - if (!SlabFrozen(page) && !page->freelist) + if (!PageSlubFrozen(page) && !page->freelist) remove_full(s, page); if (s->flags & SLAB_STORE_USER) set_track(s, object, TRACK_FREE, addr); @@ -1157,7 +1125,7 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node) page->flags |= 1 << PG_slab; if (s->flags & (SLAB_DEBUG_FREE | SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER | SLAB_TRACE)) - SetSlabDebug(page); + __SetPageSlubDebug(page); start = page_address(page); @@ -1184,14 +1152,14 @@ static void __free_slab(struct kmem_cache *s, struct page *page) int order = compound_order(page); int pages = 1 << order; - if (unlikely(SlabDebug(page))) { + if (unlikely(SLABDEBUG && PageSlubDebug(page))) { void *p; slab_pad_check(s, page); for_each_object(p, s, page_address(page), page->objects) check_object(s, page, p, 0); - ClearSlabDebug(page); + __ClearPageSlubDebug(page); } mod_zone_page_state(page_zone(page), @@ -1288,7 +1256,7 @@ static inline int lock_and_freeze_slab(struct kmem_cache_node *n, if (slab_trylock(page)) { list_del(&page->lru); n->nr_partial--; - SetSlabFrozen(page); + __SetPageSlubFrozen(page); return 1; } return 0; @@ -1398,7 +1366,7 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail) struct kmem_cache_node *n = get_node(s, page_to_nid(page)); struct kmem_cache_cpu *c = get_cpu_slab(s, smp_processor_id()); - ClearSlabFrozen(page); + __ClearPageSlubFrozen(page); if (page->inuse) { if (page->freelist) { @@ -1406,7 +1374,8 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail) stat(c, tail ? DEACTIVATE_TO_TAIL : DEACTIVATE_TO_HEAD); } else { stat(c, DEACTIVATE_FULL); - if (SlabDebug(page) && (s->flags & SLAB_STORE_USER)) + if (SLABDEBUG && PageSlubDebug(page) && + (s->flags & SLAB_STORE_USER)) add_full(n, page); } slab_unlock(page); @@ -1551,7 +1520,7 @@ load_freelist: object = c->page->freelist; if (unlikely(!object)) goto another_slab; - if (unlikely(SlabDebug(c->page))) + if (unlikely(SLABDEBUG && PageSlubDebug(c->page))) goto debug; c->freelist = object[c->offset]; @@ -1588,7 +1557,7 @@ new_slab: if (c->page) flush_slab(s, c); slab_lock(new); - SetSlabFrozen(new); + __SetPageSlubFrozen(new); c->page = new; goto load_freelist; } @@ -1674,7 +1643,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page, stat(c, FREE_SLOWPATH); slab_lock(page); - if (unlikely(SlabDebug(page))) + if (unlikely(SLABDEBUG && PageSlubDebug(page))) goto debug; checks_ok: @@ -1682,7 +1651,7 @@ checks_ok: page->freelist = object; page->inuse--; - if (unlikely(SlabFrozen(page))) { + if (unlikely(PageSlubFrozen(page))) { stat(c, FREE_FROZEN); goto out_unlock; } @@ -3317,12 +3286,12 @@ static void validate_slab_slab(struct kmem_cache *s, struct page *page, s->name, page); if (s->flags & DEBUG_DEFAULT_FLAGS) { - if (!SlabDebug(page)) - printk(KERN_ERR "SLUB %s: SlabDebug not set " + if (!PageSlubDebug(page)) + printk(KERN_ERR "SLUB %s: SlubDebug not set " "on slab 0x%p\n", s->name, page); } else { - if (SlabDebug(page)) - printk(KERN_ERR "SLUB %s: SlabDebug set on " + if (PageSlubDebug(page)) + printk(KERN_ERR "SLUB %s: SlubDebug set on " "slab 0x%p\n", s->name, page); } } -- cgit v1.2.3 From 9023cb7e8564d95a1893f8cb6895a293be9a71fe Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Wed, 23 Jul 2008 21:27:19 -0700 Subject: slob: record page flag overlays explicitly SLOB reuses two page bits for internal purposes, it overlays PG_active and PG_private. This is hidden away in slob.c. Document these overlays explicitly in the main page-flags enum along with all the others. Signed-off-by: Andy Whitcroft Cc: Pekka Enberg Cc: Christoph Lameter Cc: Matt Mackall Cc: Nick Piggin Reviewed-by: KOSAKI Motohiro Cc: KOSAKI Motohiro Cc: Rik van Riel Cc: Jeremy Fitzhardinge Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page-flags.h | 7 +++++++ mm/slob.c | 12 ++++++------ 2 files changed, 13 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 3fc586b7b90b..54590a9a103e 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -105,6 +105,10 @@ enum pageflags { PG_pinned = PG_owner_priv_1, PG_savepinned = PG_dirty, + /* SLOB */ + PG_slob_page = PG_active, + PG_slob_free = PG_private, + /* SLUB */ PG_slub_frozen = PG_active, PG_slub_debug = PG_error, @@ -173,6 +177,9 @@ PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved) PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private) __SETPAGEFLAG(Private, private) +__PAGEFLAG(SlobPage, slob_page) +__PAGEFLAG(SlobFree, slob_free) + __PAGEFLAG(SlubFrozen, slub_frozen) __PAGEFLAG(SlubDebug, slub_debug) diff --git a/mm/slob.c b/mm/slob.c index a3ad6671adf1..de268eb7ac70 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -130,17 +130,17 @@ static LIST_HEAD(free_slob_large); */ static inline int slob_page(struct slob_page *sp) { - return test_bit(PG_active, &sp->flags); + return PageSlobPage((struct page *)sp); } static inline void set_slob_page(struct slob_page *sp) { - __set_bit(PG_active, &sp->flags); + __SetPageSlobPage((struct page *)sp); } static inline void clear_slob_page(struct slob_page *sp) { - __clear_bit(PG_active, &sp->flags); + __ClearPageSlobPage((struct page *)sp); } /* @@ -148,19 +148,19 @@ static inline void clear_slob_page(struct slob_page *sp) */ static inline int slob_page_free(struct slob_page *sp) { - return test_bit(PG_private, &sp->flags); + return PageSlobFree((struct page *)sp); } static void set_slob_page_free(struct slob_page *sp, struct list_head *list) { list_add(&sp->list, list); - __set_bit(PG_private, &sp->flags); + __SetPageSlobFree((struct page *)sp); } static inline void clear_slob_page_free(struct slob_page *sp) { list_del(&sp->list); - __clear_bit(PG_private, &sp->flags); + __ClearPageSlobFree((struct page *)sp); } #define SLOB_UNIT sizeof(slob_t) -- cgit v1.2.3 From 2185e69f680ae8c8496b6fc15e20c889d5b39b67 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 23 Jul 2008 21:27:19 -0700 Subject: mapping_set_error: add unlikely() This is called on a per-page basis and in the vast majority of cases `error' is zero. Cc: Guillaume Chazarain Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index d2fca802f809..ee1ec2c7723c 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -22,7 +22,7 @@ static inline void mapping_set_error(struct address_space *mapping, int error) { - if (error) { + if (unlikely(error)) { if (error == -ENOSPC) set_bit(AS_ENOSPC, &mapping->flags); else -- cgit v1.2.3 From 9109fb7b3520de187ebc3646c209d66a233f7169 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 23 Jul 2008 21:27:20 -0700 Subject: mm: drop unneeded pgdat argument from free_area_init_node() free_area_init_node() gets passed in the node id as well as the node descriptor. This is redundant as the function can trivially get the node descriptor itself by means of NODE_DATA() and the node's id. I checked all the users and NODE_DATA() seems to be usable everywhere from where this function is called. Signed-off-by: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/mm/numa.c | 2 +- arch/arm/mm/init.c | 2 +- arch/avr32/mm/init.c | 2 +- arch/cris/arch-v10/mm/init.c | 2 +- arch/cris/arch-v32/mm/init.c | 2 +- arch/m32r/mm/discontig.c | 3 +-- arch/m32r/mm/init.c | 2 +- arch/m68k/mm/motorola.c | 2 +- arch/m68k/mm/sun3mmu.c | 2 +- arch/parisc/mm/init.c | 2 +- arch/sparc/mm/srmmu.c | 3 +-- arch/sparc/mm/sun4c.c | 3 +-- arch/v850/kernel/setup.c | 3 +-- include/linux/mm.h | 5 ++--- mm/memory_hotplug.c | 2 +- mm/page_alloc.c | 11 ++++++----- 16 files changed, 22 insertions(+), 26 deletions(-) (limited to 'include') diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index a53fda0481ca..def0c74a78a8 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -313,7 +313,7 @@ void __init paging_init(void) zones_size[ZONE_DMA] = dma_local_pfn; zones_size[ZONE_NORMAL] = (end_pfn - start_pfn) - dma_local_pfn; } - free_area_init_node(nid, NODE_DATA(nid), zones_size, start_pfn, NULL); + free_area_init_node(nid, zones_size, start_pfn, NULL); } /* Initialize the kernel's ZERO_PGE. */ diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index b657f1719af0..e6352946dde0 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -284,7 +284,7 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi) */ arch_adjust_zones(node, zone_size, zhole_size); - free_area_init_node(node, pgdat, zone_size, start_pfn, zhole_size); + free_area_init_node(node, zone_size, start_pfn, zhole_size); return end_pfn; } diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index 3f90a87527bb..786de88a82a7 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -129,7 +129,7 @@ void __init paging_init(void) printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n", nid, start_pfn, low); - free_area_init_node(nid, pgdat, zones_size, start_pfn, NULL); + free_area_init_node(nid, zones_size, start_pfn, NULL); printk("Node %u: mem_map starts at %p\n", pgdat->node_id, pgdat->node_mem_map); diff --git a/arch/cris/arch-v10/mm/init.c b/arch/cris/arch-v10/mm/init.c index e0fcd1a9bfd5..742fd1974c2e 100644 --- a/arch/cris/arch-v10/mm/init.c +++ b/arch/cris/arch-v10/mm/init.c @@ -182,7 +182,7 @@ paging_init(void) * mem_map page array. */ - free_area_init_node(0, &contig_page_data, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0); + free_area_init_node(0, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0); } /* Initialize remaps of some I/O-ports. It is important that this diff --git a/arch/cris/arch-v32/mm/init.c b/arch/cris/arch-v32/mm/init.c index 5a9ac5834647..8a34b8b74293 100644 --- a/arch/cris/arch-v32/mm/init.c +++ b/arch/cris/arch-v32/mm/init.c @@ -162,7 +162,7 @@ paging_init(void) * substantially higher than 0, like us (we start at PAGE_OFFSET). This * saves space in the mem_map page array. */ - free_area_init_node(0, &contig_page_data, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0); + free_area_init_node(0, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0); mem_map = contig_page_data.node_mem_map; } diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c index aa9145ef6cca..cc23934bc41e 100644 --- a/arch/m32r/mm/discontig.c +++ b/arch/m32r/mm/discontig.c @@ -147,8 +147,7 @@ unsigned long __init zone_sizes_init(void) zholes_size[ZONE_DMA] = mp->holes; holes += zholes_size[ZONE_DMA]; - free_area_init_node(nid, NODE_DATA(nid), zones_size, - start_pfn, zholes_size); + free_area_init_node(nid, zones_size, start_pfn, zholes_size); } /* diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index bbd97c85bc5d..28799af15e95 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -123,7 +123,7 @@ unsigned long __init zone_sizes_init(void) start_pfn = __MEMORY_START >> PAGE_SHIFT; #endif /* CONFIG_MMU */ - free_area_init_node(0, NODE_DATA(0), zones_size, start_pfn, 0); + free_area_init_node(0, zones_size, start_pfn, 0); return 0; } diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 226795bdf355..c5dbb9bdb322 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -296,7 +296,7 @@ void __init paging_init(void) #endif for (i = 0; i < m68k_num_memory; i++) { zones_size[ZONE_DMA] = m68k_memory[i].size >> PAGE_SHIFT; - free_area_init_node(i, pg_data_map + i, zones_size, + free_area_init_node(i, zones_size, m68k_memory[i].addr >> PAGE_SHIFT, NULL); } } diff --git a/arch/m68k/mm/sun3mmu.c b/arch/m68k/mm/sun3mmu.c index edceefc18870..1b902dbd4376 100644 --- a/arch/m68k/mm/sun3mmu.c +++ b/arch/m68k/mm/sun3mmu.c @@ -94,7 +94,7 @@ void __init paging_init(void) /* I really wish I knew why the following change made things better... -- Sam */ /* free_area_init(zones_size); */ - free_area_init_node(0, NODE_DATA(0), zones_size, + free_area_init_node(0, zones_size, (__pa(PAGE_OFFSET) >> PAGE_SHIFT) + 1, NULL); diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 0ddf4904640a..7c155c254e72 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -887,7 +887,7 @@ void __init paging_init(void) } #endif - free_area_init_node(i, NODE_DATA(i), zones_size, + free_area_init_node(i, zones_size, pmem_ranges[i].start_pfn, NULL); } } diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index c624e04ff03e..ee30462598fc 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -1352,8 +1352,7 @@ void __init srmmu_paging_init(void) zones_size[ZONE_HIGHMEM] = npages; zholes_size[ZONE_HIGHMEM] = npages - calc_highpages(); - free_area_init_node(0, &contig_page_data, zones_size, - pfn_base, zholes_size); + free_area_init_node(0, zones_size, pfn_base, zholes_size); } } diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c index 2375fe9dc312..d1782f6368be 100644 --- a/arch/sparc/mm/sun4c.c +++ b/arch/sparc/mm/sun4c.c @@ -2123,8 +2123,7 @@ void __init sun4c_paging_init(void) zones_size[ZONE_HIGHMEM] = npages; zholes_size[ZONE_HIGHMEM] = npages - calc_highpages(); - free_area_init_node(0, &contig_page_data, zones_size, - pfn_base, zholes_size); + free_area_init_node(0, zones_size, pfn_base, zholes_size); } cnt = 0; diff --git a/arch/v850/kernel/setup.c b/arch/v850/kernel/setup.c index a0a8456a8430..10335cecf7bd 100644 --- a/arch/v850/kernel/setup.c +++ b/arch/v850/kernel/setup.c @@ -295,8 +295,7 @@ init_mem_alloc (unsigned long ram_start, unsigned long ram_len) #error MAX_ORDER is too large for given PAGE_OFFSET (use CONFIG_FORCE_MAX_ZONEORDER to change it) #endif NODE_DATA(0)->node_mem_map = NULL; - free_area_init_node (0, NODE_DATA(0), zones_size, - ADDR_TO_PAGE (PAGE_OFFSET), 0); + free_area_init_node(0, zones_size, ADDR_TO_PAGE (PAGE_OFFSET), 0); } diff --git a/include/linux/mm.h b/include/linux/mm.h index f8071097302a..196924b657bc 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -962,9 +962,8 @@ static inline void pgtable_page_dtor(struct page *page) NULL: pte_offset_kernel(pmd, address)) extern void free_area_init(unsigned long * zones_size); -extern void free_area_init_node(int nid, pg_data_t *pgdat, - unsigned long * zones_size, unsigned long zone_start_pfn, - unsigned long *zholes_size); +extern void free_area_init_node(int nid, unsigned long * zones_size, + unsigned long zone_start_pfn, unsigned long *zholes_size); #ifdef CONFIG_ARCH_POPULATES_NODE_MAP /* * With CONFIG_ARCH_POPULATES_NODE_MAP set, an architecture may initialise its diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 833f854eabe5..6e26adc08f14 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -455,7 +455,7 @@ static pg_data_t *hotadd_new_pgdat(int nid, u64 start) /* we can use NODE_DATA(nid) from here */ /* init node's zones as empty zones, we don't have any present pages.*/ - free_area_init_node(nid, pgdat, zones_size, start_pfn, zholes_size); + free_area_init_node(nid, zones_size, start_pfn, zholes_size); return pgdat; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 24aa3d1b9d96..e43aae135b38 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3461,10 +3461,11 @@ static void __init_refok alloc_node_mem_map(struct pglist_data *pgdat) #endif /* CONFIG_FLAT_NODE_MEM_MAP */ } -void __paginginit free_area_init_node(int nid, struct pglist_data *pgdat, - unsigned long *zones_size, unsigned long node_start_pfn, - unsigned long *zholes_size) +void __paginginit free_area_init_node(int nid, unsigned long *zones_size, + unsigned long node_start_pfn, unsigned long *zholes_size) { + pg_data_t *pgdat = NODE_DATA(nid); + pgdat->node_id = nid; pgdat->node_start_pfn = node_start_pfn; calculate_node_totalpages(pgdat, zones_size, zholes_size); @@ -3961,7 +3962,7 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn) setup_nr_node_ids(); for_each_online_node(nid) { pg_data_t *pgdat = NODE_DATA(nid); - free_area_init_node(nid, pgdat, NULL, + free_area_init_node(nid, NULL, find_min_pfn_for_node(nid), NULL); /* Any memory on that node */ @@ -4032,7 +4033,7 @@ EXPORT_SYMBOL(contig_page_data); void __init free_area_init(unsigned long *zones_size) { - free_area_init_node(0, NODE_DATA(0), zones_size, + free_area_init_node(0, zones_size, __pa(PAGE_OFFSET) >> PAGE_SHIFT, NULL); } -- cgit v1.2.3 From a1e78772d72b2616ed20e54896e68e0e7044854e Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 23 Jul 2008 21:27:23 -0700 Subject: hugetlb: reserve huge pages for reliable MAP_PRIVATE hugetlbfs mappings until fork() This patch reserves huge pages at mmap() time for MAP_PRIVATE mappings in a similar manner to the reservations taken for MAP_SHARED mappings. The reserve count is accounted both globally and on a per-VMA basis for private mappings. This guarantees that a process that successfully calls mmap() will successfully fault all pages in the future unless fork() is called. The characteristics of private mappings of hugetlbfs files behaviour after this patch are; 1. The process calling mmap() is guaranteed to succeed all future faults until it forks(). 2. On fork(), the parent may die due to SIGKILL on writes to the private mapping if enough pages are not available for the COW. For reasonably reliable behaviour in the face of a small huge page pool, children of hugepage-aware processes should not reference the mappings; such as might occur when fork()ing to exec(). 3. On fork(), the child VMAs inherit no reserves. Reads on pages already faulted by the parent will succeed. Successful writes will depend on enough huge pages being free in the pool. 4. Quotas of the hugetlbfs mount are checked at reserve time for the mapper and at fault time otherwise. Before this patch, all reads or writes in the child potentially needs page allocations that can later lead to the death of the parent. This applies to reads and writes of uninstantiated pages as well as COW. After the patch it is only a write to an instantiated page that causes problems. Signed-off-by: Mel Gorman Acked-by: Adam Litke Cc: Andy Whitcroft Cc: William Lee Irwin III Cc: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/hugetlbfs/inode.c | 8 +-- include/linux/hugetlb.h | 9 ++- kernel/fork.c | 9 +++ mm/hugetlb.c | 158 ++++++++++++++++++++++++++++++++++++------------ 4 files changed, 140 insertions(+), 44 deletions(-) (limited to 'include') diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index aeabf80f81a5..1576bbecd084 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -103,9 +103,9 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) ret = -ENOMEM; len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT); - if (vma->vm_flags & VM_MAYSHARE && - hugetlb_reserve_pages(inode, vma->vm_pgoff >> (HPAGE_SHIFT-PAGE_SHIFT), - len >> HPAGE_SHIFT)) + if (hugetlb_reserve_pages(inode, + vma->vm_pgoff >> (HPAGE_SHIFT-PAGE_SHIFT), + len >> HPAGE_SHIFT, vma)) goto out; ret = 0; @@ -942,7 +942,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size) goto out_dentry; error = -ENOMEM; - if (hugetlb_reserve_pages(inode, 0, size >> HPAGE_SHIFT)) + if (hugetlb_reserve_pages(inode, 0, size >> HPAGE_SHIFT, NULL)) goto out_inode; d_instantiate(dentry, inode); diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index a79e80b689d8..185b14c9f021 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -17,6 +17,7 @@ static inline int is_vm_hugetlb_page(struct vm_area_struct *vma) return vma->vm_flags & VM_HUGETLB; } +void reset_vma_resv_huge_pages(struct vm_area_struct *vma); int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *); int hugetlb_overcommit_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *); int hugetlb_treat_movable_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *); @@ -30,7 +31,8 @@ int hugetlb_report_node_meminfo(int, char *); unsigned long hugetlb_total_pages(void); int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, int write_access); -int hugetlb_reserve_pages(struct inode *inode, long from, long to); +int hugetlb_reserve_pages(struct inode *inode, long from, long to, + struct vm_area_struct *vma); void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed); extern unsigned long max_huge_pages; @@ -58,6 +60,11 @@ static inline int is_vm_hugetlb_page(struct vm_area_struct *vma) { return 0; } + +static inline void reset_vma_resv_huge_pages(struct vm_area_struct *vma) +{ +} + static inline unsigned long hugetlb_total_pages(void) { return 0; diff --git a/kernel/fork.c b/kernel/fork.c index adefc1131f27..552c8d8e77ad 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -306,6 +307,14 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) spin_unlock(&file->f_mapping->i_mmap_lock); } + /* + * Clear hugetlb-related page reserves for children. This only + * affects MAP_PRIVATE mappings. Faults generated by the child + * are not guaranteed to succeed, even if read-only + */ + if (is_vm_hugetlb_page(tmp)) + reset_vma_resv_huge_pages(tmp); + /* * Link in the new vma and copy the page table entries. */ diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a4dbba8965f3..0af500db3632 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -40,6 +40,69 @@ static int hugetlb_next_nid; */ static DEFINE_SPINLOCK(hugetlb_lock); +/* + * These helpers are used to track how many pages are reserved for + * faults in a MAP_PRIVATE mapping. Only the process that called mmap() + * is guaranteed to have their future faults succeed. + * + * With the exception of reset_vma_resv_huge_pages() which is called at fork(), + * the reserve counters are updated with the hugetlb_lock held. It is safe + * to reset the VMA at fork() time as it is not in use yet and there is no + * chance of the global counters getting corrupted as a result of the values. + */ +static unsigned long vma_resv_huge_pages(struct vm_area_struct *vma) +{ + VM_BUG_ON(!is_vm_hugetlb_page(vma)); + if (!(vma->vm_flags & VM_SHARED)) + return (unsigned long)vma->vm_private_data; + return 0; +} + +static void set_vma_resv_huge_pages(struct vm_area_struct *vma, + unsigned long reserve) +{ + VM_BUG_ON(!is_vm_hugetlb_page(vma)); + VM_BUG_ON(vma->vm_flags & VM_SHARED); + + vma->vm_private_data = (void *)reserve; +} + +/* Decrement the reserved pages in the hugepage pool by one */ +static void decrement_hugepage_resv_vma(struct vm_area_struct *vma) +{ + if (vma->vm_flags & VM_SHARED) { + /* Shared mappings always use reserves */ + resv_huge_pages--; + } else { + /* + * Only the process that called mmap() has reserves for + * private mappings. + */ + if (vma_resv_huge_pages(vma)) { + resv_huge_pages--; + reserve = (unsigned long)vma->vm_private_data - 1; + vma->vm_private_data = (void *)reserve; + } + } +} + +void reset_vma_resv_huge_pages(struct vm_area_struct *vma) +{ + VM_BUG_ON(!is_vm_hugetlb_page(vma)); + if (!(vma->vm_flags & VM_SHARED)) + vma->vm_private_data = (void *)0; +} + +/* Returns true if the VMA has associated reserve pages */ +static int vma_has_private_reserves(struct vm_area_struct *vma) +{ + if (vma->vm_flags & VM_SHARED) + return 0; + if (!vma_resv_huge_pages(vma)) + return 0; + return 1; +} + static void clear_huge_page(struct page *page, unsigned long addr) { int i; @@ -101,6 +164,15 @@ static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, struct zone *zone; struct zoneref *z; + /* + * A child process with MAP_PRIVATE mappings created by their parent + * have no page reserves. This check ensures that reservations are + * not "stolen". The child may still get SIGKILLed + */ + if (!vma_has_private_reserves(vma) && + free_huge_pages - resv_huge_pages == 0) + return NULL; + for_each_zone_zonelist_nodemask(zone, z, zonelist, MAX_NR_ZONES - 1, nodemask) { nid = zone_to_nid(zone); @@ -111,8 +183,8 @@ static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, list_del(&page->lru); free_huge_pages--; free_huge_pages_node[nid]--; - if (vma && vma->vm_flags & VM_MAYSHARE) - resv_huge_pages--; + decrement_hugepage_resv_vma(vma); + break; } } @@ -461,55 +533,40 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages) } } - -static struct page *alloc_huge_page_shared(struct vm_area_struct *vma, - unsigned long addr) +static struct page *alloc_huge_page(struct vm_area_struct *vma, + unsigned long addr) { struct page *page; + struct address_space *mapping = vma->vm_file->f_mapping; + struct inode *inode = mapping->host; + unsigned int chg = 0; + + /* + * Processes that did not create the mapping will have no reserves and + * will not have accounted against quota. Check that the quota can be + * made before satisfying the allocation + */ + if (!vma_has_private_reserves(vma)) { + chg = 1; + if (hugetlb_get_quota(inode->i_mapping, chg)) + return ERR_PTR(-ENOSPC); + } spin_lock(&hugetlb_lock); page = dequeue_huge_page_vma(vma, addr); spin_unlock(&hugetlb_lock); - return page ? page : ERR_PTR(-VM_FAULT_OOM); -} -static struct page *alloc_huge_page_private(struct vm_area_struct *vma, - unsigned long addr) -{ - struct page *page = NULL; - - if (hugetlb_get_quota(vma->vm_file->f_mapping, 1)) - return ERR_PTR(-VM_FAULT_SIGBUS); - - spin_lock(&hugetlb_lock); - if (free_huge_pages > resv_huge_pages) - page = dequeue_huge_page_vma(vma, addr); - spin_unlock(&hugetlb_lock); if (!page) { page = alloc_buddy_huge_page(vma, addr); if (!page) { - hugetlb_put_quota(vma->vm_file->f_mapping, 1); + hugetlb_put_quota(inode->i_mapping, chg); return ERR_PTR(-VM_FAULT_OOM); } } - return page; -} -static struct page *alloc_huge_page(struct vm_area_struct *vma, - unsigned long addr) -{ - struct page *page; - struct address_space *mapping = vma->vm_file->f_mapping; - - if (vma->vm_flags & VM_MAYSHARE) - page = alloc_huge_page_shared(vma, addr); - else - page = alloc_huge_page_private(vma, addr); + set_page_refcounted(page); + set_page_private(page, (unsigned long) mapping); - if (!IS_ERR(page)) { - set_page_refcounted(page); - set_page_private(page, (unsigned long) mapping); - } return page; } @@ -757,6 +814,13 @@ out: return ret; } +static void hugetlb_vm_op_close(struct vm_area_struct *vma) +{ + unsigned long reserve = vma_resv_huge_pages(vma); + if (reserve) + hugetlb_acct_memory(-reserve); +} + /* * We cannot handle pagefaults against hugetlb pages at all. They cause * handle_mm_fault() to try to instantiate regular-sized pages in the @@ -771,6 +835,7 @@ static int hugetlb_vm_op_fault(struct vm_area_struct *vma, struct vm_fault *vmf) struct vm_operations_struct hugetlb_vm_ops = { .fault = hugetlb_vm_op_fault, + .close = hugetlb_vm_op_close, }; static pte_t make_huge_pte(struct vm_area_struct *vma, struct page *page, @@ -1289,11 +1354,25 @@ static long region_truncate(struct list_head *head, long end) return chg; } -int hugetlb_reserve_pages(struct inode *inode, long from, long to) +int hugetlb_reserve_pages(struct inode *inode, + long from, long to, + struct vm_area_struct *vma) { long ret, chg; - chg = region_chg(&inode->i_mapping->private_list, from, to); + /* + * Shared mappings base their reservation on the number of pages that + * are already allocated on behalf of the file. Private mappings need + * to reserve the full area even if read-only as mprotect() may be + * called to make the mapping read-write. Assume !vma is a shm mapping + */ + if (!vma || vma->vm_flags & VM_SHARED) + chg = region_chg(&inode->i_mapping->private_list, from, to); + else { + chg = to - from; + set_vma_resv_huge_pages(vma, chg); + } + if (chg < 0) return chg; @@ -1304,7 +1383,8 @@ int hugetlb_reserve_pages(struct inode *inode, long from, long to) hugetlb_put_quota(inode->i_mapping, chg); return ret; } - region_add(&inode->i_mapping->private_list, from, to); + if (!vma || vma->vm_flags & VM_SHARED) + region_add(&inode->i_mapping->private_list, from, to); return 0; } -- cgit v1.2.3 From 04f2cbe35699d22dbf428373682ead85ca1240f5 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 23 Jul 2008 21:27:25 -0700 Subject: hugetlb: guarantee that COW faults for a process that called mmap(MAP_PRIVATE) on hugetlbfs will succeed After patch 2 in this series, a process that successfully calls mmap() for a MAP_PRIVATE mapping will be guaranteed to successfully fault until a process calls fork(). At that point, the next write fault from the parent could fail due to COW if the child still has a reference. We only reserve pages for the parent but a copy must be made to avoid leaking data from the parent to the child after fork(). Reserves could be taken for both parent and child at fork time to guarantee faults but if the mapping is large it is highly likely we will not have sufficient pages for the reservation, and it is common to fork only to exec() immediatly after. A failure here would be very undesirable. Note that the current behaviour of mainline with MAP_PRIVATE pages is pretty bad. The following situation is allowed to occur today. 1. Process calls mmap(MAP_PRIVATE) 2. Process calls mlock() to fault all pages and makes sure it succeeds 3. Process forks() 4. Process writes to MAP_PRIVATE mapping while child still exists 5. If the COW fails at this point, the process gets SIGKILLed even though it had taken care to ensure the pages existed This patch improves the situation by guaranteeing the reliability of the process that successfully calls mmap(). When the parent performs COW, it will try to satisfy the allocation without using reserves. If that fails the parent will steal the page leaving any children without a page. Faults from the child after that point will result in failure. If the child COW happens first, an attempt will be made to allocate the page without reserves and the child will get SIGKILLed on failure. To summarise the new behaviour: 1. If the original mapper performs COW on a private mapping with multiple references, it will attempt to allocate a hugepage from the pool or the buddy allocator without using the existing reserves. On fail, VMAs mapping the same area are traversed and the page being COW'd is unmapped where found. It will then steal the original page as the last mapper in the normal way. 2. The VMAs the pages were unmapped from are flagged to note that pages with data no longer exist. Future no-page faults on those VMAs will terminate the process as otherwise it would appear that data was corrupted. A warning is printed to the console that this situation occured. 2. If the child performs COW first, it will attempt to satisfy the COW from the pool if there are enough pages or via the buddy allocator if overcommit is allowed and the buddy allocator can satisfy the request. If it fails, the child will be killed. If the pool is large enough, existing applications will not notice that the reserves were a factor. Existing applications depending on the no-reserves been set are unlikely to exist as for much of the history of hugetlbfs, pages were prefaulted at mmap(), allocating the pages at that point or failing the mmap(). [npiggin@suse.de: fix CONFIG_HUGETLB=n build] Signed-off-by: Mel Gorman Acked-by: Adam Litke Cc: Andy Whitcroft Cc: William Lee Irwin III Cc: Hugh Dickins Cc: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/hugetlbfs/inode.c | 2 +- include/linux/hugetlb.h | 8 +- mm/hugetlb.c | 201 +++++++++++++++++++++++++++++++++++++++++++----- mm/memory.c | 2 +- 4 files changed, 190 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 1576bbecd084..428eff5b73f3 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -441,7 +441,7 @@ hugetlb_vmtruncate_list(struct prio_tree_root *root, pgoff_t pgoff) v_offset = 0; __unmap_hugepage_range(vma, - vma->vm_start + v_offset, vma->vm_end); + vma->vm_start + v_offset, vma->vm_end, NULL); } } diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 185b14c9f021..abbc187193a1 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -23,8 +23,10 @@ int hugetlb_overcommit_handler(struct ctl_table *, int, struct file *, void __us int hugetlb_treat_movable_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *); int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *); int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int, int); -void unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long); -void __unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long); +void unmap_hugepage_range(struct vm_area_struct *, + unsigned long, unsigned long, struct page *); +void __unmap_hugepage_range(struct vm_area_struct *, + unsigned long, unsigned long, struct page *); int hugetlb_prefault(struct address_space *, struct vm_area_struct *); int hugetlb_report_meminfo(char *); int hugetlb_report_node_meminfo(int, char *); @@ -74,7 +76,7 @@ static inline unsigned long hugetlb_total_pages(void) #define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL) #define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; }) #define hugetlb_prefault(mapping, vma) ({ BUG(); 0; }) -#define unmap_hugepage_range(vma, start, end) BUG() +#define unmap_hugepage_range(vma, start, end, page) BUG() #define hugetlb_report_meminfo(buf) 0 #define hugetlb_report_node_meminfo(n, buf) 0 #define follow_huge_pmd(mm, addr, pmd, write) NULL diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0af500db3632..a2d29b84501f 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -40,6 +40,9 @@ static int hugetlb_next_nid; */ static DEFINE_SPINLOCK(hugetlb_lock); +#define HPAGE_RESV_OWNER (1UL << (BITS_PER_LONG - 1)) +#define HPAGE_RESV_UNMAPPED (1UL << (BITS_PER_LONG - 2)) +#define HPAGE_RESV_MASK (HPAGE_RESV_OWNER | HPAGE_RESV_UNMAPPED) /* * These helpers are used to track how many pages are reserved for * faults in a MAP_PRIVATE mapping. Only the process that called mmap() @@ -54,17 +57,32 @@ static unsigned long vma_resv_huge_pages(struct vm_area_struct *vma) { VM_BUG_ON(!is_vm_hugetlb_page(vma)); if (!(vma->vm_flags & VM_SHARED)) - return (unsigned long)vma->vm_private_data; + return (unsigned long)vma->vm_private_data & ~HPAGE_RESV_MASK; return 0; } static void set_vma_resv_huge_pages(struct vm_area_struct *vma, unsigned long reserve) { + unsigned long flags; VM_BUG_ON(!is_vm_hugetlb_page(vma)); VM_BUG_ON(vma->vm_flags & VM_SHARED); - vma->vm_private_data = (void *)reserve; + flags = (unsigned long)vma->vm_private_data & HPAGE_RESV_MASK; + vma->vm_private_data = (void *)(reserve | flags); +} + +static void set_vma_resv_flags(struct vm_area_struct *vma, unsigned long flags) +{ + unsigned long reserveflags = (unsigned long)vma->vm_private_data; + VM_BUG_ON(!is_vm_hugetlb_page(vma)); + vma->vm_private_data = (void *)(reserveflags | flags); +} + +static int is_vma_resv_set(struct vm_area_struct *vma, unsigned long flag) +{ + VM_BUG_ON(!is_vm_hugetlb_page(vma)); + return ((unsigned long)vma->vm_private_data & flag) != 0; } /* Decrement the reserved pages in the hugepage pool by one */ @@ -78,14 +96,18 @@ static void decrement_hugepage_resv_vma(struct vm_area_struct *vma) * Only the process that called mmap() has reserves for * private mappings. */ - if (vma_resv_huge_pages(vma)) { + if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { + unsigned long flags, reserve; resv_huge_pages--; + flags = (unsigned long)vma->vm_private_data & + HPAGE_RESV_MASK; reserve = (unsigned long)vma->vm_private_data - 1; - vma->vm_private_data = (void *)reserve; + vma->vm_private_data = (void *)(reserve | flags); } } } +/* Reset counters to 0 and clear all HPAGE_RESV_* flags */ void reset_vma_resv_huge_pages(struct vm_area_struct *vma) { VM_BUG_ON(!is_vm_hugetlb_page(vma)); @@ -153,7 +175,7 @@ static struct page *dequeue_huge_page(void) } static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, - unsigned long address) + unsigned long address, int avoid_reserve) { int nid; struct page *page = NULL; @@ -173,6 +195,10 @@ static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, free_huge_pages - resv_huge_pages == 0) return NULL; + /* If reserves cannot be used, ensure enough pages are in the pool */ + if (avoid_reserve && free_huge_pages - resv_huge_pages == 0) + return NULL; + for_each_zone_zonelist_nodemask(zone, z, zonelist, MAX_NR_ZONES - 1, nodemask) { nid = zone_to_nid(zone); @@ -183,7 +209,9 @@ static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, list_del(&page->lru); free_huge_pages--; free_huge_pages_node[nid]--; - decrement_hugepage_resv_vma(vma); + + if (!avoid_reserve) + decrement_hugepage_resv_vma(vma); break; } @@ -534,7 +562,7 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages) } static struct page *alloc_huge_page(struct vm_area_struct *vma, - unsigned long addr) + unsigned long addr, int avoid_reserve) { struct page *page; struct address_space *mapping = vma->vm_file->f_mapping; @@ -546,14 +574,15 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, * will not have accounted against quota. Check that the quota can be * made before satisfying the allocation */ - if (!vma_has_private_reserves(vma)) { + if (!(vma->vm_flags & VM_SHARED) && + !is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { chg = 1; if (hugetlb_get_quota(inode->i_mapping, chg)) return ERR_PTR(-ENOSPC); } spin_lock(&hugetlb_lock); - page = dequeue_huge_page_vma(vma, addr); + page = dequeue_huge_page_vma(vma, addr, avoid_reserve); spin_unlock(&hugetlb_lock); if (!page) { @@ -909,7 +938,7 @@ nomem: } void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) + unsigned long end, struct page *ref_page) { struct mm_struct *mm = vma->vm_mm; unsigned long address; @@ -937,6 +966,27 @@ void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, if (huge_pmd_unshare(mm, &address, ptep)) continue; + /* + * If a reference page is supplied, it is because a specific + * page is being unmapped, not a range. Ensure the page we + * are about to unmap is the actual page of interest. + */ + if (ref_page) { + pte = huge_ptep_get(ptep); + if (huge_pte_none(pte)) + continue; + page = pte_page(pte); + if (page != ref_page) + continue; + + /* + * Mark the VMA as having unmapped its page so that + * future faults in this VMA will fail rather than + * looking like data was lost + */ + set_vma_resv_flags(vma, HPAGE_RESV_UNMAPPED); + } + pte = huge_ptep_get_and_clear(mm, address, ptep); if (huge_pte_none(pte)) continue; @@ -955,7 +1005,7 @@ void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, } void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) + unsigned long end, struct page *ref_page) { /* * It is undesirable to test vma->vm_file as it should be non-null @@ -967,19 +1017,68 @@ void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, */ if (vma->vm_file) { spin_lock(&vma->vm_file->f_mapping->i_mmap_lock); - __unmap_hugepage_range(vma, start, end); + __unmap_hugepage_range(vma, start, end, ref_page); spin_unlock(&vma->vm_file->f_mapping->i_mmap_lock); } } +/* + * This is called when the original mapper is failing to COW a MAP_PRIVATE + * mappping it owns the reserve page for. The intention is to unmap the page + * from other VMAs and let the children be SIGKILLed if they are faulting the + * same region. + */ +int unmap_ref_private(struct mm_struct *mm, + struct vm_area_struct *vma, + struct page *page, + unsigned long address) +{ + struct vm_area_struct *iter_vma; + struct address_space *mapping; + struct prio_tree_iter iter; + pgoff_t pgoff; + + /* + * vm_pgoff is in PAGE_SIZE units, hence the different calculation + * from page cache lookup which is in HPAGE_SIZE units. + */ + address = address & huge_page_mask(hstate_vma(vma)); + pgoff = ((address - vma->vm_start) >> PAGE_SHIFT) + + (vma->vm_pgoff >> PAGE_SHIFT); + mapping = (struct address_space *)page_private(page); + + vma_prio_tree_foreach(iter_vma, &iter, &mapping->i_mmap, pgoff, pgoff) { + /* Do not unmap the current VMA */ + if (iter_vma == vma) + continue; + + /* + * Unmap the page from other VMAs without their own reserves. + * They get marked to be SIGKILLed if they fault in these + * areas. This is because a future no-page fault on this VMA + * could insert a zeroed page instead of the data existing + * from the time of fork. This would look like data corruption + */ + if (!is_vma_resv_set(iter_vma, HPAGE_RESV_OWNER)) + unmap_hugepage_range(iter_vma, + address, address + HPAGE_SIZE, + page); + } + + return 1; +} + static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, pte_t *ptep, pte_t pte) + unsigned long address, pte_t *ptep, pte_t pte, + struct page *pagecache_page) { struct page *old_page, *new_page; int avoidcopy; + int outside_reserve = 0; old_page = pte_page(pte); +retry_avoidcopy: /* If no-one else is actually using this page, avoid the copy * and just make the page writable */ avoidcopy = (page_count(old_page) == 1); @@ -988,11 +1087,43 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, return 0; } + /* + * If the process that created a MAP_PRIVATE mapping is about to + * perform a COW due to a shared page count, attempt to satisfy + * the allocation without using the existing reserves. The pagecache + * page is used to determine if the reserve at this address was + * consumed or not. If reserves were used, a partial faulted mapping + * at the time of fork() could consume its reserves on COW instead + * of the full address range. + */ + if (!(vma->vm_flags & VM_SHARED) && + is_vma_resv_set(vma, HPAGE_RESV_OWNER) && + old_page != pagecache_page) + outside_reserve = 1; + page_cache_get(old_page); - new_page = alloc_huge_page(vma, address); + new_page = alloc_huge_page(vma, address, outside_reserve); if (IS_ERR(new_page)) { page_cache_release(old_page); + + /* + * If a process owning a MAP_PRIVATE mapping fails to COW, + * it is due to references held by a child and an insufficient + * huge page pool. To guarantee the original mappers + * reliability, unmap the page from child processes. The child + * may get SIGKILLed if it later faults. + */ + if (outside_reserve) { + BUG_ON(huge_pte_none(pte)); + if (unmap_ref_private(mm, vma, old_page, address)) { + BUG_ON(page_count(old_page) != 1); + BUG_ON(huge_pte_none(pte)); + goto retry_avoidcopy; + } + WARN_ON_ONCE(1); + } + return -PTR_ERR(new_page); } @@ -1015,6 +1146,20 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, return 0; } +/* Return the pagecache page at a given address within a VMA */ +static struct page *hugetlbfs_pagecache_page(struct vm_area_struct *vma, + unsigned long address) +{ + struct address_space *mapping; + unsigned long idx; + + mapping = vma->vm_file->f_mapping; + idx = ((address - vma->vm_start) >> HPAGE_SHIFT) + + (vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT)); + + return find_lock_page(mapping, idx); +} + static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pte_t *ptep, int write_access) { @@ -1025,6 +1170,18 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, struct address_space *mapping; pte_t new_pte; + /* + * Currently, we are forced to kill the process in the event the + * original mapper has unmapped pages from the child due to a failed + * COW. Warn that such a situation has occured as it may not be obvious + */ + if (is_vma_resv_set(vma, HPAGE_RESV_UNMAPPED)) { + printk(KERN_WARNING + "PID %d killed due to inadequate hugepage pool\n", + current->pid); + return ret; + } + mapping = vma->vm_file->f_mapping; idx = ((address - vma->vm_start) >> HPAGE_SHIFT) + (vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT)); @@ -1039,7 +1196,7 @@ retry: size = i_size_read(mapping->host) >> HPAGE_SHIFT; if (idx >= size) goto out; - page = alloc_huge_page(vma, address); + page = alloc_huge_page(vma, address, 0); if (IS_ERR(page)) { ret = -PTR_ERR(page); goto out; @@ -1081,7 +1238,7 @@ retry: if (write_access && !(vma->vm_flags & VM_SHARED)) { /* Optimization, do the COW without a second fault */ - ret = hugetlb_cow(mm, vma, address, ptep, new_pte); + ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page); } spin_unlock(&mm->page_table_lock); @@ -1126,8 +1283,15 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, spin_lock(&mm->page_table_lock); /* Check for a racing update before calling hugetlb_cow */ if (likely(pte_same(entry, huge_ptep_get(ptep)))) - if (write_access && !pte_write(entry)) - ret = hugetlb_cow(mm, vma, address, ptep, entry); + if (write_access && !pte_write(entry)) { + struct page *page; + page = hugetlbfs_pagecache_page(vma, address); + ret = hugetlb_cow(mm, vma, address, ptep, entry, page); + if (page) { + unlock_page(page); + put_page(page); + } + } spin_unlock(&mm->page_table_lock); mutex_unlock(&hugetlb_instantiation_mutex); @@ -1371,6 +1535,7 @@ int hugetlb_reserve_pages(struct inode *inode, else { chg = to - from; set_vma_resv_huge_pages(vma, chg); + set_vma_resv_flags(vma, HPAGE_RESV_OWNER); } if (chg < 0) diff --git a/mm/memory.c b/mm/memory.c index 82f3f1c5cf17..72932489a082 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -901,7 +901,7 @@ unsigned long unmap_vmas(struct mmu_gather **tlbp, } if (unlikely(is_vm_hugetlb_page(vma))) { - unmap_hugepage_range(vma, start, end); + unmap_hugepage_range(vma, start, end, NULL); zap_work -= (end - start) / (HPAGE_SIZE / PAGE_SIZE); start = end; -- cgit v1.2.3 From cdfd4325c0d878679bd6a3ba8285b71d9980e3c0 Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Wed, 23 Jul 2008 21:27:28 -0700 Subject: mm: record MAP_NORESERVE status on vmas and fix small page mprotect reservations With Mel's hugetlb private reservation support patches applied, strict overcommit semantics are applied to both shared and private huge page mappings. This can be a problem if an application relied on unlimited overcommit semantics for private mappings. An example of this would be an application which maps a huge area with the intention of using it very sparsely. These application would benefit from being able to opt-out of the strict overcommit. It should be noted that prior to hugetlb supporting demand faulting all mappings were fully populated and so applications of this type should be rare. This patch stack implements the MAP_NORESERVE mmap() flag for huge page mappings. This flag has the same meaning as for small page mappings, suppressing reservations for that mapping. Thanks to Mel Gorman for reviewing a number of early versions of these patches. This patch: When a small page mapping is created with mmap() reservations are created by default for any memory pages required. When the region is read/write the reservation is increased for every page, no reservation is needed for read-only regions (as they implicitly share the zero page). Reservations are tracked via the VM_ACCOUNT vma flag which is present when the region has reservation backing it. When we convert a region from read-only to read-write new reservations are aquired and VM_ACCOUNT is set. However, when a read-only map is created with MAP_NORESERVE it is indistinguishable from a normal mapping. When we then convert that to read/write we are forced to incorrectly create reservations for it as we have no record of the original MAP_NORESERVE. This patch introduces a new vma flag VM_NORESERVE which records the presence of the original MAP_NORESERVE flag. This allows us to distinguish these two circumstances and correctly account the reserve. As well as fixing this FIXME in the code, this makes it much easier to introduce MAP_NORESERVE support for huge pages as this flag is available consistantly for the life of the mapping. VM_ACCOUNT on the other hand is heavily used at the generic level in association with small pages. Signed-off-by: Andy Whitcroft Cc: Mel Gorman Cc: Adam Litke Cc: Johannes Weiner Cc: Andy Whitcroft Cc: William Lee Irwin III Cc: Hugh Dickins Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 1 + mm/mmap.c | 3 +++ mm/mprotect.c | 6 ++---- 3 files changed, 6 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 196924b657bc..df322fb4df31 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -100,6 +100,7 @@ extern unsigned int kobjsize(const void *objp); #define VM_DONTEXPAND 0x00040000 /* Cannot expand with mremap() */ #define VM_RESERVED 0x00080000 /* Count as reserved_vm like IO */ #define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */ +#define VM_NORESERVE 0x00200000 /* should the VM suppress accounting */ #define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */ #define VM_NONLINEAR 0x00800000 /* Is non-linear (remap_file_pages) */ #define VM_MAPPED_COPY 0x01000000 /* T if mapped copy of data (nommu mmap) */ diff --git a/mm/mmap.c b/mm/mmap.c index 75e0d0673d78..57d3b6097deb 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1110,6 +1110,9 @@ munmap_back: if (!may_expand_vm(mm, len >> PAGE_SHIFT)) return -ENOMEM; + if (flags & MAP_NORESERVE) + vm_flags |= VM_NORESERVE; + if (accountable && (!(flags & MAP_NORESERVE) || sysctl_overcommit_memory == OVERCOMMIT_NEVER)) { if (vm_flags & VM_SHARED) { diff --git a/mm/mprotect.c b/mm/mprotect.c index 360d9cc8b38c..abd645a3b0a0 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -153,12 +153,10 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, * If we make a private mapping writable we increase our commit; * but (without finer accounting) cannot reduce our commit if we * make it unwritable again. - * - * FIXME? We haven't defined a VM_NORESERVE flag, so mprotecting - * a MAP_NORESERVE private mapping to writable will now reserve. */ if (newflags & VM_WRITE) { - if (!(oldflags & (VM_ACCOUNT|VM_WRITE|VM_SHARED))) { + if (!(oldflags & (VM_ACCOUNT|VM_WRITE| + VM_SHARED|VM_NORESERVE))) { charged = nrpages; if (security_vm_enough_memory(charged)) return -ENOMEM; -- cgit v1.2.3 From ff7ea79cf7c3a481851bd4b2185fdeb6ce4afa29 Mon Sep 17 00:00:00 2001 From: Nishanth Aravamudan Date: Wed, 23 Jul 2008 21:27:39 -0700 Subject: mm: create /sys/kernel/mm Add a kobject to create /sys/kernel/mm when sysfs is mounted. The kobject will exist regardless. This will allow for the hugepage related sysfs directories to exist under the mm "subsystem" directory. Add an ABI file appropriately. [kosaki.motohiro@jp.fujitsu.com: fix build] Signed-off-by: Nishanth Aravamudan Cc: Nick Piggin Cc: Mel Gorman Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/ABI/testing/sysfs-kernel-mm | 6 ++++++ include/linux/kobject.h | 2 ++ mm/mm_init.c | 16 ++++++++++++++++ 3 files changed, 24 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-kernel-mm (limited to 'include') diff --git a/Documentation/ABI/testing/sysfs-kernel-mm b/Documentation/ABI/testing/sysfs-kernel-mm new file mode 100644 index 000000000000..190d523ac159 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-kernel-mm @@ -0,0 +1,6 @@ +What: /sys/kernel/mm +Date: July 2008 +Contact: Nishanth Aravamudan , VM maintainers +Description: + /sys/kernel/mm/ should contain any and all VM + related information in /sys/kernel/. diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 60f0d418ae32..5437ac0276e2 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -186,6 +186,8 @@ extern struct kobject *kset_find_obj(struct kset *, const char *); /* The global /sys/kernel/ kobject for people to chain off of */ extern struct kobject *kernel_kobj; +/* The global /sys/kernel/mm/ kobject for people to chain off of */ +extern struct kobject *mm_kobj; /* The global /sys/hypervisor/ kobject for people to chain off of */ extern struct kobject *hypervisor_kobj; /* The global /sys/power/ kobject for people to chain off of */ diff --git a/mm/mm_init.c b/mm/mm_init.c index eaf0d3b47099..c6af41ea9994 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -7,6 +7,8 @@ */ #include #include +#include +#include #include "internal.h" #ifdef CONFIG_DEBUG_MEMORY_INIT @@ -134,3 +136,17 @@ static __init int set_mminit_loglevel(char *str) } early_param("mminit_loglevel", set_mminit_loglevel); #endif /* CONFIG_DEBUG_MEMORY_INIT */ + +struct kobject *mm_kobj; +EXPORT_SYMBOL_GPL(mm_kobj); + +static int __init mm_sysfs_init(void) +{ + mm_kobj = kobject_create_and_add("mm", kernel_kobj); + if (!mm_kobj) + return -ENOMEM; + + return 0; +} + +__initcall(mm_sysfs_init); -- cgit v1.2.3 From a5516438959d90b071ff0a484ce4f3f523dc3152 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 23 Jul 2008 21:27:41 -0700 Subject: hugetlb: modular state for hugetlb page size The goal of this patchset is to support multiple hugetlb page sizes. This is achieved by introducing a new struct hstate structure, which encapsulates the important hugetlb state and constants (eg. huge page size, number of huge pages currently allocated, etc). The hstate structure is then passed around the code which requires these fields, they will do the right thing regardless of the exact hstate they are operating on. This patch adds the hstate structure, with a single global instance of it (default_hstate), and does the basic work of converting hugetlb to use the hstate. Future patches will add more hstate structures to allow for different hugetlbfs mounts to have different page sizes. [akpm@linux-foundation.org: coding-style fixes] Acked-by: Adam Litke Acked-by: Nishanth Aravamudan Signed-off-by: Andi Kleen Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/mm/hugetlbpage.c | 7 +- arch/powerpc/mm/hugetlbpage.c | 3 +- arch/s390/mm/hugetlbpage.c | 3 +- arch/sh/mm/hugetlbpage.c | 3 +- arch/sparc64/mm/hugetlbpage.c | 5 +- arch/x86/mm/hugetlbpage.c | 5 +- fs/hugetlbfs/inode.c | 52 +++--- include/asm-ia64/hugetlb.h | 3 +- include/asm-powerpc/hugetlb.h | 3 +- include/asm-s390/hugetlb.h | 3 +- include/asm-sh/hugetlb.h | 3 +- include/asm-sparc/hugetlb.h | 3 +- include/asm-x86/hugetlb.h | 8 +- include/linux/hugetlb.h | 88 +++++++++- ipc/shm.c | 3 +- mm/hugetlb.c | 368 +++++++++++++++++++++++------------------- mm/memory.c | 2 +- mm/mempolicy.c | 9 +- mm/mmap.c | 3 +- 19 files changed, 356 insertions(+), 218 deletions(-) (limited to 'include') diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index cd49e2860eef..6170f097d255 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c @@ -24,7 +24,7 @@ unsigned int hpage_shift=HPAGE_SHIFT_DEFAULT; pte_t * -huge_pte_alloc (struct mm_struct *mm, unsigned long addr) +huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz) { unsigned long taddr = htlbpage_to_page(addr); pgd_t *pgd; @@ -75,7 +75,8 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) * Don't actually need to do any preparation, but need to make sure * the address is in the right region. */ -int prepare_hugepage_range(unsigned long addr, unsigned long len) +int prepare_hugepage_range(struct file *file, + unsigned long addr, unsigned long len) { if (len & ~HPAGE_MASK) return -EINVAL; @@ -149,7 +150,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u /* Handle MAP_FIXED */ if (flags & MAP_FIXED) { - if (prepare_hugepage_range(addr, len)) + if (prepare_hugepage_range(file, addr, len)) return -EINVAL; return addr; } diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 1a96cc891cf5..c94dc71af989 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -128,7 +128,8 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr) return NULL; } -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) +pte_t *huge_pte_alloc(struct mm_struct *mm, + unsigned long addr, unsigned long sz) { pgd_t *pg; pud_t *pu; diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index f4b6124fdb75..9162dc84f77f 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -72,7 +72,8 @@ void arch_release_hugepage(struct page *page) page[1].index = 0; } -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) +pte_t *huge_pte_alloc(struct mm_struct *mm, + unsigned long addr, unsigned long sz) { pgd_t *pgdp; pud_t *pudp; diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c index ae8c321d6e2a..2f9dbe0ef4ac 100644 --- a/arch/sh/mm/hugetlbpage.c +++ b/arch/sh/mm/hugetlbpage.c @@ -22,7 +22,8 @@ #include #include -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) +pte_t *huge_pte_alloc(struct mm_struct *mm, + unsigned long addr, unsigned long sz) { pgd_t *pgd; pud_t *pud; diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c index ebefd2a14375..1307b23f6a76 100644 --- a/arch/sparc64/mm/hugetlbpage.c +++ b/arch/sparc64/mm/hugetlbpage.c @@ -175,7 +175,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, return -ENOMEM; if (flags & MAP_FIXED) { - if (prepare_hugepage_range(addr, len)) + if (prepare_hugepage_range(file, addr, len)) return -EINVAL; return addr; } @@ -195,7 +195,8 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, pgoff, flags); } -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) +pte_t *huge_pte_alloc(struct mm_struct *mm, + unsigned long addr, unsigned long sz) { pgd_t *pgd; pud_t *pud; diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index 0b3d567e686d..52476fde8996 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -124,7 +124,8 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) return 1; } -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) +pte_t *huge_pte_alloc(struct mm_struct *mm, + unsigned long addr, unsigned long sz) { pgd_t *pgd; pud_t *pud; @@ -368,7 +369,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, return -ENOMEM; if (flags & MAP_FIXED) { - if (prepare_hugepage_range(addr, len)) + if (prepare_hugepage_range(file, addr, len)) return -EINVAL; return addr; } diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 428eff5b73f3..516c581b5371 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -80,6 +80,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) struct inode *inode = file->f_path.dentry->d_inode; loff_t len, vma_len; int ret; + struct hstate *h = hstate_file(file); /* * vma address alignment (but not the pgoff alignment) has @@ -92,7 +93,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) vma->vm_flags |= VM_HUGETLB | VM_RESERVED; vma->vm_ops = &hugetlb_vm_ops; - if (vma->vm_pgoff & ~(HPAGE_MASK >> PAGE_SHIFT)) + if (vma->vm_pgoff & ~(huge_page_mask(h) >> PAGE_SHIFT)) return -EINVAL; vma_len = (loff_t)(vma->vm_end - vma->vm_start); @@ -104,8 +105,8 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT); if (hugetlb_reserve_pages(inode, - vma->vm_pgoff >> (HPAGE_SHIFT-PAGE_SHIFT), - len >> HPAGE_SHIFT, vma)) + vma->vm_pgoff >> huge_page_order(h), + len >> huge_page_shift(h), vma)) goto out; ret = 0; @@ -130,20 +131,21 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, struct mm_struct *mm = current->mm; struct vm_area_struct *vma; unsigned long start_addr; + struct hstate *h = hstate_file(file); - if (len & ~HPAGE_MASK) + if (len & ~huge_page_mask(h)) return -EINVAL; if (len > TASK_SIZE) return -ENOMEM; if (flags & MAP_FIXED) { - if (prepare_hugepage_range(addr, len)) + if (prepare_hugepage_range(file, addr, len)) return -EINVAL; return addr; } if (addr) { - addr = ALIGN(addr, HPAGE_SIZE); + addr = ALIGN(addr, huge_page_size(h)); vma = find_vma(mm, addr); if (TASK_SIZE - len >= addr && (!vma || addr + len <= vma->vm_start)) @@ -156,7 +158,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, start_addr = TASK_UNMAPPED_BASE; full_search: - addr = ALIGN(start_addr, HPAGE_SIZE); + addr = ALIGN(start_addr, huge_page_size(h)); for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { /* At this point: (!vma || addr < vma->vm_end). */ @@ -174,7 +176,7 @@ full_search: if (!vma || addr + len <= vma->vm_start) return addr; - addr = ALIGN(vma->vm_end, HPAGE_SIZE); + addr = ALIGN(vma->vm_end, huge_page_size(h)); } } #endif @@ -225,10 +227,11 @@ hugetlbfs_read_actor(struct page *page, unsigned long offset, static ssize_t hugetlbfs_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos) { + struct hstate *h = hstate_file(filp); struct address_space *mapping = filp->f_mapping; struct inode *inode = mapping->host; - unsigned long index = *ppos >> HPAGE_SHIFT; - unsigned long offset = *ppos & ~HPAGE_MASK; + unsigned long index = *ppos >> huge_page_shift(h); + unsigned long offset = *ppos & ~huge_page_mask(h); unsigned long end_index; loff_t isize; ssize_t retval = 0; @@ -243,17 +246,17 @@ static ssize_t hugetlbfs_read(struct file *filp, char __user *buf, if (!isize) goto out; - end_index = (isize - 1) >> HPAGE_SHIFT; + end_index = (isize - 1) >> huge_page_shift(h); for (;;) { struct page *page; - int nr, ret; + unsigned long nr, ret; /* nr is the maximum number of bytes to copy from this page */ - nr = HPAGE_SIZE; + nr = huge_page_size(h); if (index >= end_index) { if (index > end_index) goto out; - nr = ((isize - 1) & ~HPAGE_MASK) + 1; + nr = ((isize - 1) & ~huge_page_mask(h)) + 1; if (nr <= offset) { goto out; } @@ -287,8 +290,8 @@ static ssize_t hugetlbfs_read(struct file *filp, char __user *buf, offset += ret; retval += ret; len -= ret; - index += offset >> HPAGE_SHIFT; - offset &= ~HPAGE_MASK; + index += offset >> huge_page_shift(h); + offset &= ~huge_page_mask(h); if (page) page_cache_release(page); @@ -298,7 +301,7 @@ static ssize_t hugetlbfs_read(struct file *filp, char __user *buf, break; } out: - *ppos = ((loff_t)index << HPAGE_SHIFT) + offset; + *ppos = ((loff_t)index << huge_page_shift(h)) + offset; mutex_unlock(&inode->i_mutex); return retval; } @@ -339,8 +342,9 @@ static void truncate_huge_page(struct page *page) static void truncate_hugepages(struct inode *inode, loff_t lstart) { + struct hstate *h = hstate_inode(inode); struct address_space *mapping = &inode->i_data; - const pgoff_t start = lstart >> HPAGE_SHIFT; + const pgoff_t start = lstart >> huge_page_shift(h); struct pagevec pvec; pgoff_t next; int i, freed = 0; @@ -449,8 +453,9 @@ static int hugetlb_vmtruncate(struct inode *inode, loff_t offset) { pgoff_t pgoff; struct address_space *mapping = inode->i_mapping; + struct hstate *h = hstate_inode(inode); - BUG_ON(offset & ~HPAGE_MASK); + BUG_ON(offset & ~huge_page_mask(h)); pgoff = offset >> PAGE_SHIFT; i_size_write(inode, offset); @@ -465,6 +470,7 @@ static int hugetlb_vmtruncate(struct inode *inode, loff_t offset) static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; + struct hstate *h = hstate_inode(inode); int error; unsigned int ia_valid = attr->ia_valid; @@ -476,7 +482,7 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr) if (ia_valid & ATTR_SIZE) { error = -EINVAL; - if (!(attr->ia_size & ~HPAGE_MASK)) + if (!(attr->ia_size & ~huge_page_mask(h))) error = hugetlb_vmtruncate(inode, attr->ia_size); if (error) goto out; @@ -610,9 +616,10 @@ static int hugetlbfs_set_page_dirty(struct page *page) static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf) { struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(dentry->d_sb); + struct hstate *h = hstate_inode(dentry->d_inode); buf->f_type = HUGETLBFS_MAGIC; - buf->f_bsize = HPAGE_SIZE; + buf->f_bsize = huge_page_size(h); if (sbinfo) { spin_lock(&sbinfo->stat_lock); /* If no limits set, just report 0 for max/free/used @@ -942,7 +949,8 @@ struct file *hugetlb_file_setup(const char *name, size_t size) goto out_dentry; error = -ENOMEM; - if (hugetlb_reserve_pages(inode, 0, size >> HPAGE_SHIFT, NULL)) + if (hugetlb_reserve_pages(inode, 0, + size >> huge_page_shift(hstate_inode(inode)), NULL)) goto out_inode; d_instantiate(dentry, inode); diff --git a/include/asm-ia64/hugetlb.h b/include/asm-ia64/hugetlb.h index e9d1e5e2382d..da55c63728e0 100644 --- a/include/asm-ia64/hugetlb.h +++ b/include/asm-ia64/hugetlb.h @@ -8,7 +8,8 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling); -int prepare_hugepage_range(unsigned long addr, unsigned long len); +int prepare_hugepage_range(struct file *file, + unsigned long addr, unsigned long len); static inline int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr, diff --git a/include/asm-powerpc/hugetlb.h b/include/asm-powerpc/hugetlb.h index 0a37aa5ecaa5..ca37c4af27b1 100644 --- a/include/asm-powerpc/hugetlb.h +++ b/include/asm-powerpc/hugetlb.h @@ -21,7 +21,8 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. */ -static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) +static inline int prepare_hugepage_range(struct file *file, + unsigned long addr, unsigned long len) { if (len & ~HPAGE_MASK) return -EINVAL; diff --git a/include/asm-s390/hugetlb.h b/include/asm-s390/hugetlb.h index 600a776f8f75..670a1d1745d2 100644 --- a/include/asm-s390/hugetlb.h +++ b/include/asm-s390/hugetlb.h @@ -22,7 +22,8 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. */ -static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) +static inline int prepare_hugepage_range(struct file *file, + unsigned long addr, unsigned long len) { if (len & ~HPAGE_MASK) return -EINVAL; diff --git a/include/asm-sh/hugetlb.h b/include/asm-sh/hugetlb.h index fb30018938c7..967068fb79ac 100644 --- a/include/asm-sh/hugetlb.h +++ b/include/asm-sh/hugetlb.h @@ -14,7 +14,8 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. */ -static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) +static inline int prepare_hugepage_range(struct file *file, + unsigned long addr, unsigned long len) { if (len & ~HPAGE_MASK) return -EINVAL; diff --git a/include/asm-sparc/hugetlb.h b/include/asm-sparc/hugetlb.h index aeb92374ca3d..177061064ee6 100644 --- a/include/asm-sparc/hugetlb.h +++ b/include/asm-sparc/hugetlb.h @@ -22,7 +22,8 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. */ -static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) +static inline int prepare_hugepage_range(struct file *file, + unsigned long addr, unsigned long len) { if (len & ~HPAGE_MASK) return -EINVAL; diff --git a/include/asm-x86/hugetlb.h b/include/asm-x86/hugetlb.h index 7eed6e0883bf..439a9acc132d 100644 --- a/include/asm-x86/hugetlb.h +++ b/include/asm-x86/hugetlb.h @@ -14,11 +14,13 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. */ -static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) +static inline int prepare_hugepage_range(struct file *file, + unsigned long addr, unsigned long len) { - if (len & ~HPAGE_MASK) + struct hstate *h = hstate_file(file); + if (len & ~huge_page_mask(h)) return -EINVAL; - if (addr & ~HPAGE_MASK) + if (addr & ~huge_page_mask(h)) return -EINVAL; return 0; } diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index abbc187193a1..ad2271e11f9b 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -8,7 +8,6 @@ #include #include #include -#include struct ctl_table; @@ -45,7 +44,8 @@ extern int sysctl_hugetlb_shm_group; /* arch callbacks */ -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr); +pte_t *huge_pte_alloc(struct mm_struct *mm, + unsigned long addr, unsigned long sz); pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr); int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep); struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, @@ -80,7 +80,7 @@ static inline unsigned long hugetlb_total_pages(void) #define hugetlb_report_meminfo(buf) 0 #define hugetlb_report_node_meminfo(n, buf) 0 #define follow_huge_pmd(mm, addr, pmd, write) NULL -#define prepare_hugepage_range(addr,len) (-EINVAL) +#define prepare_hugepage_range(file, addr, len) (-EINVAL) #define pmd_huge(x) 0 #define is_hugepage_only_range(mm, addr, len) 0 #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; }) @@ -134,8 +134,6 @@ struct file *hugetlb_file_setup(const char *name, size_t); int hugetlb_get_quota(struct address_space *mapping, long delta); void hugetlb_put_quota(struct address_space *mapping, long delta); -#define BLOCKS_PER_HUGEPAGE (HPAGE_SIZE / 512) - static inline int is_file_hugepages(struct file *file) { if (file->f_op == &hugetlbfs_file_operations) @@ -164,4 +162,84 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, unsigned long flags); #endif /* HAVE_ARCH_HUGETLB_UNMAPPED_AREA */ +#ifdef CONFIG_HUGETLB_PAGE + +/* Defines one hugetlb page size */ +struct hstate { + int hugetlb_next_nid; + unsigned int order; + unsigned long mask; + unsigned long max_huge_pages; + unsigned long nr_huge_pages; + unsigned long free_huge_pages; + unsigned long resv_huge_pages; + unsigned long surplus_huge_pages; + unsigned long nr_overcommit_huge_pages; + struct list_head hugepage_freelists[MAX_NUMNODES]; + unsigned int nr_huge_pages_node[MAX_NUMNODES]; + unsigned int free_huge_pages_node[MAX_NUMNODES]; + unsigned int surplus_huge_pages_node[MAX_NUMNODES]; +}; + +extern struct hstate default_hstate; + +static inline struct hstate *hstate_vma(struct vm_area_struct *vma) +{ + return &default_hstate; +} + +static inline struct hstate *hstate_file(struct file *f) +{ + return &default_hstate; +} + +static inline struct hstate *hstate_inode(struct inode *i) +{ + return &default_hstate; +} + +static inline unsigned long huge_page_size(struct hstate *h) +{ + return (unsigned long)PAGE_SIZE << h->order; +} + +static inline unsigned long huge_page_mask(struct hstate *h) +{ + return h->mask; +} + +static inline unsigned int huge_page_order(struct hstate *h) +{ + return h->order; +} + +static inline unsigned huge_page_shift(struct hstate *h) +{ + return h->order + PAGE_SHIFT; +} + +static inline unsigned int pages_per_huge_page(struct hstate *h) +{ + return 1 << h->order; +} + +static inline unsigned int blocks_per_huge_page(struct hstate *h) +{ + return huge_page_size(h) / 512; +} + +#include + +#else +struct hstate {}; +#define hstate_file(f) NULL +#define hstate_vma(v) NULL +#define hstate_inode(i) NULL +#define huge_page_size(h) PAGE_SIZE +#define huge_page_mask(h) PAGE_MASK +#define huge_page_order(h) 0 +#define huge_page_shift(h) PAGE_SHIFT +#define pages_per_huge_page(h) 1 +#endif + #endif /* _LINUX_HUGETLB_H */ diff --git a/ipc/shm.c b/ipc/shm.c index 790240cd067f..a726aebce7d7 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -577,7 +577,8 @@ static void shm_get_stat(struct ipc_namespace *ns, unsigned long *rss, if (is_file_hugepages(shp->shm_file)) { struct address_space *mapping = inode->i_mapping; - *rss += (HPAGE_SIZE/PAGE_SIZE)*mapping->nrpages; + struct hstate *h = hstate_file(shp->shm_file); + *rss += pages_per_huge_page(h) * mapping->nrpages; } else { struct shmem_inode_info *info = SHMEM_I(inode); spin_lock(&info->lock); diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 32dff4290c66..0d8153e25f09 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -22,18 +22,12 @@ #include "internal.h" const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL; -static unsigned long nr_huge_pages, free_huge_pages, resv_huge_pages; -static unsigned long surplus_huge_pages; -static unsigned long nr_overcommit_huge_pages; unsigned long max_huge_pages; unsigned long sysctl_overcommit_huge_pages; -static struct list_head hugepage_freelists[MAX_NUMNODES]; -static unsigned int nr_huge_pages_node[MAX_NUMNODES]; -static unsigned int free_huge_pages_node[MAX_NUMNODES]; -static unsigned int surplus_huge_pages_node[MAX_NUMNODES]; static gfp_t htlb_alloc_mask = GFP_HIGHUSER; unsigned long hugepages_treat_as_movable; -static int hugetlb_next_nid; + +struct hstate default_hstate; /* * Protects updates to hugepage_freelists, nr_huge_pages, and free_huge_pages @@ -203,11 +197,11 @@ static long region_count(struct list_head *head, long f, long t) * Convert the address within this vma to the page offset within * the mapping, in pagecache page units; huge pages here. */ -static pgoff_t vma_hugecache_offset(struct vm_area_struct *vma, - unsigned long address) +static pgoff_t vma_hugecache_offset(struct hstate *h, + struct vm_area_struct *vma, unsigned long address) { - return ((address - vma->vm_start) >> HPAGE_SHIFT) + - (vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT)); + return ((address - vma->vm_start) >> huge_page_shift(h)) + + (vma->vm_pgoff >> huge_page_order(h)); } /* @@ -309,20 +303,21 @@ static int is_vma_resv_set(struct vm_area_struct *vma, unsigned long flag) } /* Decrement the reserved pages in the hugepage pool by one */ -static void decrement_hugepage_resv_vma(struct vm_area_struct *vma) +static void decrement_hugepage_resv_vma(struct hstate *h, + struct vm_area_struct *vma) { if (vma->vm_flags & VM_NORESERVE) return; if (vma->vm_flags & VM_SHARED) { /* Shared mappings always use reserves */ - resv_huge_pages--; + h->resv_huge_pages--; } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { /* * Only the process that called mmap() has reserves for * private mappings. */ - resv_huge_pages--; + h->resv_huge_pages--; } } @@ -344,12 +339,13 @@ static int vma_has_private_reserves(struct vm_area_struct *vma) return 1; } -static void clear_huge_page(struct page *page, unsigned long addr) +static void clear_huge_page(struct page *page, + unsigned long addr, unsigned long sz) { int i; might_sleep(); - for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); i++) { + for (i = 0; i < sz/PAGE_SIZE; i++) { cond_resched(); clear_user_highpage(page + i, addr + i * PAGE_SIZE); } @@ -359,41 +355,43 @@ static void copy_huge_page(struct page *dst, struct page *src, unsigned long addr, struct vm_area_struct *vma) { int i; + struct hstate *h = hstate_vma(vma); might_sleep(); - for (i = 0; i < HPAGE_SIZE/PAGE_SIZE; i++) { + for (i = 0; i < pages_per_huge_page(h); i++) { cond_resched(); copy_user_highpage(dst + i, src + i, addr + i*PAGE_SIZE, vma); } } -static void enqueue_huge_page(struct page *page) +static void enqueue_huge_page(struct hstate *h, struct page *page) { int nid = page_to_nid(page); - list_add(&page->lru, &hugepage_freelists[nid]); - free_huge_pages++; - free_huge_pages_node[nid]++; + list_add(&page->lru, &h->hugepage_freelists[nid]); + h->free_huge_pages++; + h->free_huge_pages_node[nid]++; } -static struct page *dequeue_huge_page(void) +static struct page *dequeue_huge_page(struct hstate *h) { int nid; struct page *page = NULL; for (nid = 0; nid < MAX_NUMNODES; ++nid) { - if (!list_empty(&hugepage_freelists[nid])) { - page = list_entry(hugepage_freelists[nid].next, + if (!list_empty(&h->hugepage_freelists[nid])) { + page = list_entry(h->hugepage_freelists[nid].next, struct page, lru); list_del(&page->lru); - free_huge_pages--; - free_huge_pages_node[nid]--; + h->free_huge_pages--; + h->free_huge_pages_node[nid]--; break; } } return page; } -static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, +static struct page *dequeue_huge_page_vma(struct hstate *h, + struct vm_area_struct *vma, unsigned long address, int avoid_reserve) { int nid; @@ -411,26 +409,26 @@ static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, * not "stolen". The child may still get SIGKILLed */ if (!vma_has_private_reserves(vma) && - free_huge_pages - resv_huge_pages == 0) + h->free_huge_pages - h->resv_huge_pages == 0) return NULL; /* If reserves cannot be used, ensure enough pages are in the pool */ - if (avoid_reserve && free_huge_pages - resv_huge_pages == 0) + if (avoid_reserve && h->free_huge_pages - h->resv_huge_pages == 0) return NULL; for_each_zone_zonelist_nodemask(zone, z, zonelist, MAX_NR_ZONES - 1, nodemask) { nid = zone_to_nid(zone); if (cpuset_zone_allowed_softwall(zone, htlb_alloc_mask) && - !list_empty(&hugepage_freelists[nid])) { - page = list_entry(hugepage_freelists[nid].next, + !list_empty(&h->hugepage_freelists[nid])) { + page = list_entry(h->hugepage_freelists[nid].next, struct page, lru); list_del(&page->lru); - free_huge_pages--; - free_huge_pages_node[nid]--; + h->free_huge_pages--; + h->free_huge_pages_node[nid]--; if (!avoid_reserve) - decrement_hugepage_resv_vma(vma); + decrement_hugepage_resv_vma(h, vma); break; } @@ -439,12 +437,13 @@ static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, return page; } -static void update_and_free_page(struct page *page) +static void update_and_free_page(struct hstate *h, struct page *page) { int i; - nr_huge_pages--; - nr_huge_pages_node[page_to_nid(page)]--; - for (i = 0; i < (HPAGE_SIZE / PAGE_SIZE); i++) { + + h->nr_huge_pages--; + h->nr_huge_pages_node[page_to_nid(page)]--; + for (i = 0; i < pages_per_huge_page(h); i++) { page[i].flags &= ~(1 << PG_locked | 1 << PG_error | 1 << PG_referenced | 1 << PG_dirty | 1 << PG_active | 1 << PG_reserved | 1 << PG_private | 1<< PG_writeback); @@ -452,11 +451,16 @@ static void update_and_free_page(struct page *page) set_compound_page_dtor(page, NULL); set_page_refcounted(page); arch_release_hugepage(page); - __free_pages(page, HUGETLB_PAGE_ORDER); + __free_pages(page, huge_page_order(h)); } static void free_huge_page(struct page *page) { + /* + * Can't pass hstate in here because it is called from the + * compound page destructor. + */ + struct hstate *h = &default_hstate; int nid = page_to_nid(page); struct address_space *mapping; @@ -466,12 +470,12 @@ static void free_huge_page(struct page *page) INIT_LIST_HEAD(&page->lru); spin_lock(&hugetlb_lock); - if (surplus_huge_pages_node[nid]) { - update_and_free_page(page); - surplus_huge_pages--; - surplus_huge_pages_node[nid]--; + if (h->surplus_huge_pages_node[nid]) { + update_and_free_page(h, page); + h->surplus_huge_pages--; + h->surplus_huge_pages_node[nid]--; } else { - enqueue_huge_page(page); + enqueue_huge_page(h, page); } spin_unlock(&hugetlb_lock); if (mapping) @@ -483,7 +487,7 @@ static void free_huge_page(struct page *page) * balanced by operating on them in a round-robin fashion. * Returns 1 if an adjustment was made. */ -static int adjust_pool_surplus(int delta) +static int adjust_pool_surplus(struct hstate *h, int delta) { static int prev_nid; int nid = prev_nid; @@ -496,15 +500,15 @@ static int adjust_pool_surplus(int delta) nid = first_node(node_online_map); /* To shrink on this node, there must be a surplus page */ - if (delta < 0 && !surplus_huge_pages_node[nid]) + if (delta < 0 && !h->surplus_huge_pages_node[nid]) continue; /* Surplus cannot exceed the total number of pages */ - if (delta > 0 && surplus_huge_pages_node[nid] >= - nr_huge_pages_node[nid]) + if (delta > 0 && h->surplus_huge_pages_node[nid] >= + h->nr_huge_pages_node[nid]) continue; - surplus_huge_pages += delta; - surplus_huge_pages_node[nid] += delta; + h->surplus_huge_pages += delta; + h->surplus_huge_pages_node[nid] += delta; ret = 1; break; } while (nid != prev_nid); @@ -513,46 +517,46 @@ static int adjust_pool_surplus(int delta) return ret; } -static void prep_new_huge_page(struct page *page, int nid) +static void prep_new_huge_page(struct hstate *h, struct page *page, int nid) { set_compound_page_dtor(page, free_huge_page); spin_lock(&hugetlb_lock); - nr_huge_pages++; - nr_huge_pages_node[nid]++; + h->nr_huge_pages++; + h->nr_huge_pages_node[nid]++; spin_unlock(&hugetlb_lock); put_page(page); /* free it into the hugepage allocator */ } -static struct page *alloc_fresh_huge_page_node(int nid) +static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid) { struct page *page; page = alloc_pages_node(nid, htlb_alloc_mask|__GFP_COMP|__GFP_THISNODE| __GFP_REPEAT|__GFP_NOWARN, - HUGETLB_PAGE_ORDER); + huge_page_order(h)); if (page) { if (arch_prepare_hugepage(page)) { __free_pages(page, HUGETLB_PAGE_ORDER); return NULL; } - prep_new_huge_page(page, nid); + prep_new_huge_page(h, page, nid); } return page; } -static int alloc_fresh_huge_page(void) +static int alloc_fresh_huge_page(struct hstate *h) { struct page *page; int start_nid; int next_nid; int ret = 0; - start_nid = hugetlb_next_nid; + start_nid = h->hugetlb_next_nid; do { - page = alloc_fresh_huge_page_node(hugetlb_next_nid); + page = alloc_fresh_huge_page_node(h, h->hugetlb_next_nid); if (page) ret = 1; /* @@ -566,11 +570,11 @@ static int alloc_fresh_huge_page(void) * if we just successfully allocated a hugepage so that * the next caller gets hugepages on the next node. */ - next_nid = next_node(hugetlb_next_nid, node_online_map); + next_nid = next_node(h->hugetlb_next_nid, node_online_map); if (next_nid == MAX_NUMNODES) next_nid = first_node(node_online_map); - hugetlb_next_nid = next_nid; - } while (!page && hugetlb_next_nid != start_nid); + h->hugetlb_next_nid = next_nid; + } while (!page && h->hugetlb_next_nid != start_nid); if (ret) count_vm_event(HTLB_BUDDY_PGALLOC); @@ -580,8 +584,8 @@ static int alloc_fresh_huge_page(void) return ret; } -static struct page *alloc_buddy_huge_page(struct vm_area_struct *vma, - unsigned long address) +static struct page *alloc_buddy_huge_page(struct hstate *h, + struct vm_area_struct *vma, unsigned long address) { struct page *page; unsigned int nid; @@ -610,18 +614,18 @@ static struct page *alloc_buddy_huge_page(struct vm_area_struct *vma, * per-node value is checked there. */ spin_lock(&hugetlb_lock); - if (surplus_huge_pages >= nr_overcommit_huge_pages) { + if (h->surplus_huge_pages >= h->nr_overcommit_huge_pages) { spin_unlock(&hugetlb_lock); return NULL; } else { - nr_huge_pages++; - surplus_huge_pages++; + h->nr_huge_pages++; + h->surplus_huge_pages++; } spin_unlock(&hugetlb_lock); page = alloc_pages(htlb_alloc_mask|__GFP_COMP| __GFP_REPEAT|__GFP_NOWARN, - HUGETLB_PAGE_ORDER); + huge_page_order(h)); spin_lock(&hugetlb_lock); if (page) { @@ -636,12 +640,12 @@ static struct page *alloc_buddy_huge_page(struct vm_area_struct *vma, /* * We incremented the global counters already */ - nr_huge_pages_node[nid]++; - surplus_huge_pages_node[nid]++; + h->nr_huge_pages_node[nid]++; + h->surplus_huge_pages_node[nid]++; __count_vm_event(HTLB_BUDDY_PGALLOC); } else { - nr_huge_pages--; - surplus_huge_pages--; + h->nr_huge_pages--; + h->surplus_huge_pages--; __count_vm_event(HTLB_BUDDY_PGALLOC_FAIL); } spin_unlock(&hugetlb_lock); @@ -653,16 +657,16 @@ static struct page *alloc_buddy_huge_page(struct vm_area_struct *vma, * Increase the hugetlb pool such that it can accomodate a reservation * of size 'delta'. */ -static int gather_surplus_pages(int delta) +static int gather_surplus_pages(struct hstate *h, int delta) { struct list_head surplus_list; struct page *page, *tmp; int ret, i; int needed, allocated; - needed = (resv_huge_pages + delta) - free_huge_pages; + needed = (h->resv_huge_pages + delta) - h->free_huge_pages; if (needed <= 0) { - resv_huge_pages += delta; + h->resv_huge_pages += delta; return 0; } @@ -673,7 +677,7 @@ static int gather_surplus_pages(int delta) retry: spin_unlock(&hugetlb_lock); for (i = 0; i < needed; i++) { - page = alloc_buddy_huge_page(NULL, 0); + page = alloc_buddy_huge_page(h, NULL, 0); if (!page) { /* * We were not able to allocate enough pages to @@ -694,7 +698,8 @@ retry: * because either resv_huge_pages or free_huge_pages may have changed. */ spin_lock(&hugetlb_lock); - needed = (resv_huge_pages + delta) - (free_huge_pages + allocated); + needed = (h->resv_huge_pages + delta) - + (h->free_huge_pages + allocated); if (needed > 0) goto retry; @@ -707,7 +712,7 @@ retry: * before they are reserved. */ needed += allocated; - resv_huge_pages += delta; + h->resv_huge_pages += delta; ret = 0; free: /* Free the needed pages to the hugetlb pool */ @@ -715,7 +720,7 @@ free: if ((--needed) < 0) break; list_del(&page->lru); - enqueue_huge_page(page); + enqueue_huge_page(h, page); } /* Free unnecessary surplus pages to the buddy allocator */ @@ -743,7 +748,8 @@ free: * allocated to satisfy the reservation must be explicitly freed if they were * never used. */ -static void return_unused_surplus_pages(unsigned long unused_resv_pages) +static void return_unused_surplus_pages(struct hstate *h, + unsigned long unused_resv_pages) { static int nid = -1; struct page *page; @@ -758,27 +764,27 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages) unsigned long remaining_iterations = num_online_nodes(); /* Uncommit the reservation */ - resv_huge_pages -= unused_resv_pages; + h->resv_huge_pages -= unused_resv_pages; - nr_pages = min(unused_resv_pages, surplus_huge_pages); + nr_pages = min(unused_resv_pages, h->surplus_huge_pages); while (remaining_iterations-- && nr_pages) { nid = next_node(nid, node_online_map); if (nid == MAX_NUMNODES) nid = first_node(node_online_map); - if (!surplus_huge_pages_node[nid]) + if (!h->surplus_huge_pages_node[nid]) continue; - if (!list_empty(&hugepage_freelists[nid])) { - page = list_entry(hugepage_freelists[nid].next, + if (!list_empty(&h->hugepage_freelists[nid])) { + page = list_entry(h->hugepage_freelists[nid].next, struct page, lru); list_del(&page->lru); - update_and_free_page(page); - free_huge_pages--; - free_huge_pages_node[nid]--; - surplus_huge_pages--; - surplus_huge_pages_node[nid]--; + update_and_free_page(h, page); + h->free_huge_pages--; + h->free_huge_pages_node[nid]--; + h->surplus_huge_pages--; + h->surplus_huge_pages_node[nid]--; nr_pages--; remaining_iterations = num_online_nodes(); } @@ -794,13 +800,14 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages) * an instantiated the change should be committed via vma_commit_reservation. * No action is required on failure. */ -static int vma_needs_reservation(struct vm_area_struct *vma, unsigned long addr) +static int vma_needs_reservation(struct hstate *h, + struct vm_area_struct *vma, unsigned long addr) { struct address_space *mapping = vma->vm_file->f_mapping; struct inode *inode = mapping->host; if (vma->vm_flags & VM_SHARED) { - pgoff_t idx = vma_hugecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(h, vma, addr); return region_chg(&inode->i_mapping->private_list, idx, idx + 1); @@ -809,7 +816,7 @@ static int vma_needs_reservation(struct vm_area_struct *vma, unsigned long addr) } else { int err; - pgoff_t idx = vma_hugecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(h, vma, addr); struct resv_map *reservations = vma_resv_map(vma); err = region_chg(&reservations->regions, idx, idx + 1); @@ -818,18 +825,18 @@ static int vma_needs_reservation(struct vm_area_struct *vma, unsigned long addr) return 0; } } -static void vma_commit_reservation(struct vm_area_struct *vma, - unsigned long addr) +static void vma_commit_reservation(struct hstate *h, + struct vm_area_struct *vma, unsigned long addr) { struct address_space *mapping = vma->vm_file->f_mapping; struct inode *inode = mapping->host; if (vma->vm_flags & VM_SHARED) { - pgoff_t idx = vma_hugecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(h, vma, addr); region_add(&inode->i_mapping->private_list, idx, idx + 1); } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { - pgoff_t idx = vma_hugecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(h, vma, addr); struct resv_map *reservations = vma_resv_map(vma); /* Mark this page used in the map. */ @@ -840,6 +847,7 @@ static void vma_commit_reservation(struct vm_area_struct *vma, static struct page *alloc_huge_page(struct vm_area_struct *vma, unsigned long addr, int avoid_reserve) { + struct hstate *h = hstate_vma(vma); struct page *page; struct address_space *mapping = vma->vm_file->f_mapping; struct inode *inode = mapping->host; @@ -852,7 +860,7 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, * MAP_NORESERVE mappings may also need pages and quota allocated * if no reserve mapping overlaps. */ - chg = vma_needs_reservation(vma, addr); + chg = vma_needs_reservation(h, vma, addr); if (chg < 0) return ERR_PTR(chg); if (chg) @@ -860,11 +868,11 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, return ERR_PTR(-ENOSPC); spin_lock(&hugetlb_lock); - page = dequeue_huge_page_vma(vma, addr, avoid_reserve); + page = dequeue_huge_page_vma(h, vma, addr, avoid_reserve); spin_unlock(&hugetlb_lock); if (!page) { - page = alloc_buddy_huge_page(vma, addr); + page = alloc_buddy_huge_page(h, vma, addr); if (!page) { hugetlb_put_quota(inode->i_mapping, chg); return ERR_PTR(-VM_FAULT_OOM); @@ -874,7 +882,7 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, set_page_refcounted(page); set_page_private(page, (unsigned long) mapping); - vma_commit_reservation(vma, addr); + vma_commit_reservation(h, vma, addr); return page; } @@ -882,21 +890,28 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, static int __init hugetlb_init(void) { unsigned long i; + struct hstate *h = &default_hstate; if (HPAGE_SHIFT == 0) return 0; + if (!h->order) { + h->order = HPAGE_SHIFT - PAGE_SHIFT; + h->mask = HPAGE_MASK; + } + for (i = 0; i < MAX_NUMNODES; ++i) - INIT_LIST_HEAD(&hugepage_freelists[i]); + INIT_LIST_HEAD(&h->hugepage_freelists[i]); - hugetlb_next_nid = first_node(node_online_map); + h->hugetlb_next_nid = first_node(node_online_map); for (i = 0; i < max_huge_pages; ++i) { - if (!alloc_fresh_huge_page()) + if (!alloc_fresh_huge_page(h)) break; } - max_huge_pages = free_huge_pages = nr_huge_pages = i; - printk("Total HugeTLB memory allocated, %ld\n", free_huge_pages); + max_huge_pages = h->free_huge_pages = h->nr_huge_pages = i; + printk(KERN_INFO "Total HugeTLB memory allocated, %ld\n", + h->free_huge_pages); return 0; } module_init(hugetlb_init); @@ -922,34 +937,36 @@ static unsigned int cpuset_mems_nr(unsigned int *array) #ifdef CONFIG_SYSCTL #ifdef CONFIG_HIGHMEM -static void try_to_free_low(unsigned long count) +static void try_to_free_low(struct hstate *h, unsigned long count) { int i; for (i = 0; i < MAX_NUMNODES; ++i) { struct page *page, *next; - list_for_each_entry_safe(page, next, &hugepage_freelists[i], lru) { - if (count >= nr_huge_pages) + struct list_head *freel = &h->hugepage_freelists[i]; + list_for_each_entry_safe(page, next, freel, lru) { + if (count >= h->nr_huge_pages) return; if (PageHighMem(page)) continue; list_del(&page->lru); update_and_free_page(page); - free_huge_pages--; - free_huge_pages_node[page_to_nid(page)]--; + h->free_huge_pages--; + h->free_huge_pages_node[page_to_nid(page)]--; } } } #else -static inline void try_to_free_low(unsigned long count) +static inline void try_to_free_low(struct hstate *h, unsigned long count) { } #endif -#define persistent_huge_pages (nr_huge_pages - surplus_huge_pages) +#define persistent_huge_pages(h) (h->nr_huge_pages - h->surplus_huge_pages) static unsigned long set_max_huge_pages(unsigned long count) { unsigned long min_count, ret; + struct hstate *h = &default_hstate; /* * Increase the pool size @@ -963,19 +980,19 @@ static unsigned long set_max_huge_pages(unsigned long count) * within all the constraints specified by the sysctls. */ spin_lock(&hugetlb_lock); - while (surplus_huge_pages && count > persistent_huge_pages) { - if (!adjust_pool_surplus(-1)) + while (h->surplus_huge_pages && count > persistent_huge_pages(h)) { + if (!adjust_pool_surplus(h, -1)) break; } - while (count > persistent_huge_pages) { + while (count > persistent_huge_pages(h)) { /* * If this allocation races such that we no longer need the * page, free_huge_page will handle it by freeing the page * and reducing the surplus. */ spin_unlock(&hugetlb_lock); - ret = alloc_fresh_huge_page(); + ret = alloc_fresh_huge_page(h); spin_lock(&hugetlb_lock); if (!ret) goto out; @@ -997,21 +1014,21 @@ static unsigned long set_max_huge_pages(unsigned long count) * and won't grow the pool anywhere else. Not until one of the * sysctls are changed, or the surplus pages go out of use. */ - min_count = resv_huge_pages + nr_huge_pages - free_huge_pages; + min_count = h->resv_huge_pages + h->nr_huge_pages - h->free_huge_pages; min_count = max(count, min_count); - try_to_free_low(min_count); - while (min_count < persistent_huge_pages) { - struct page *page = dequeue_huge_page(); + try_to_free_low(h, min_count); + while (min_count < persistent_huge_pages(h)) { + struct page *page = dequeue_huge_page(h); if (!page) break; - update_and_free_page(page); + update_and_free_page(h, page); } - while (count < persistent_huge_pages) { - if (!adjust_pool_surplus(1)) + while (count < persistent_huge_pages(h)) { + if (!adjust_pool_surplus(h, 1)) break; } out: - ret = persistent_huge_pages; + ret = persistent_huge_pages(h); spin_unlock(&hugetlb_lock); return ret; } @@ -1041,9 +1058,10 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write, struct file *file, void __user *buffer, size_t *length, loff_t *ppos) { + struct hstate *h = &default_hstate; proc_doulongvec_minmax(table, write, file, buffer, length, ppos); spin_lock(&hugetlb_lock); - nr_overcommit_huge_pages = sysctl_overcommit_huge_pages; + h->nr_overcommit_huge_pages = sysctl_overcommit_huge_pages; spin_unlock(&hugetlb_lock); return 0; } @@ -1052,37 +1070,40 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write, int hugetlb_report_meminfo(char *buf) { + struct hstate *h = &default_hstate; return sprintf(buf, "HugePages_Total: %5lu\n" "HugePages_Free: %5lu\n" "HugePages_Rsvd: %5lu\n" "HugePages_Surp: %5lu\n" "Hugepagesize: %5lu kB\n", - nr_huge_pages, - free_huge_pages, - resv_huge_pages, - surplus_huge_pages, - HPAGE_SIZE/1024); + h->nr_huge_pages, + h->free_huge_pages, + h->resv_huge_pages, + h->surplus_huge_pages, + 1UL << (huge_page_order(h) + PAGE_SHIFT - 10)); } int hugetlb_report_node_meminfo(int nid, char *buf) { + struct hstate *h = &default_hstate; return sprintf(buf, "Node %d HugePages_Total: %5u\n" "Node %d HugePages_Free: %5u\n" "Node %d HugePages_Surp: %5u\n", - nid, nr_huge_pages_node[nid], - nid, free_huge_pages_node[nid], - nid, surplus_huge_pages_node[nid]); + nid, h->nr_huge_pages_node[nid], + nid, h->free_huge_pages_node[nid], + nid, h->surplus_huge_pages_node[nid]); } /* Return the number pages of memory we physically have, in PAGE_SIZE units. */ unsigned long hugetlb_total_pages(void) { - return nr_huge_pages * (HPAGE_SIZE / PAGE_SIZE); + struct hstate *h = &default_hstate; + return h->nr_huge_pages * pages_per_huge_page(h); } -static int hugetlb_acct_memory(long delta) +static int hugetlb_acct_memory(struct hstate *h, long delta) { int ret = -ENOMEM; @@ -1105,18 +1126,18 @@ static int hugetlb_acct_memory(long delta) * semantics that cpuset has. */ if (delta > 0) { - if (gather_surplus_pages(delta) < 0) + if (gather_surplus_pages(h, delta) < 0) goto out; - if (delta > cpuset_mems_nr(free_huge_pages_node)) { - return_unused_surplus_pages(delta); + if (delta > cpuset_mems_nr(h->free_huge_pages_node)) { + return_unused_surplus_pages(h, delta); goto out; } } ret = 0; if (delta < 0) - return_unused_surplus_pages((unsigned long) -delta); + return_unused_surplus_pages(h, (unsigned long) -delta); out: spin_unlock(&hugetlb_lock); @@ -1141,14 +1162,15 @@ static void hugetlb_vm_op_open(struct vm_area_struct *vma) static void hugetlb_vm_op_close(struct vm_area_struct *vma) { + struct hstate *h = hstate_vma(vma); struct resv_map *reservations = vma_resv_map(vma); unsigned long reserve; unsigned long start; unsigned long end; if (reservations) { - start = vma_hugecache_offset(vma, vma->vm_start); - end = vma_hugecache_offset(vma, vma->vm_end); + start = vma_hugecache_offset(h, vma, vma->vm_start); + end = vma_hugecache_offset(h, vma, vma->vm_end); reserve = (end - start) - region_count(&reservations->regions, start, end); @@ -1156,7 +1178,7 @@ static void hugetlb_vm_op_close(struct vm_area_struct *vma) kref_put(&reservations->refs, resv_map_release); if (reserve) - hugetlb_acct_memory(-reserve); + hugetlb_acct_memory(h, -reserve); } } @@ -1214,14 +1236,16 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, struct page *ptepage; unsigned long addr; int cow; + struct hstate *h = hstate_vma(vma); + unsigned long sz = huge_page_size(h); cow = (vma->vm_flags & (VM_SHARED | VM_MAYWRITE)) == VM_MAYWRITE; - for (addr = vma->vm_start; addr < vma->vm_end; addr += HPAGE_SIZE) { + for (addr = vma->vm_start; addr < vma->vm_end; addr += sz) { src_pte = huge_pte_offset(src, addr); if (!src_pte) continue; - dst_pte = huge_pte_alloc(dst, addr); + dst_pte = huge_pte_alloc(dst, addr, sz); if (!dst_pte) goto nomem; @@ -1257,6 +1281,9 @@ void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, pte_t pte; struct page *page; struct page *tmp; + struct hstate *h = hstate_vma(vma); + unsigned long sz = huge_page_size(h); + /* * A page gathering list, protected by per file i_mmap_lock. The * lock is used to avoid list corruption from multiple unmapping @@ -1265,11 +1292,11 @@ void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, LIST_HEAD(page_list); WARN_ON(!is_vm_hugetlb_page(vma)); - BUG_ON(start & ~HPAGE_MASK); - BUG_ON(end & ~HPAGE_MASK); + BUG_ON(start & ~huge_page_mask(h)); + BUG_ON(end & ~huge_page_mask(h)); spin_lock(&mm->page_table_lock); - for (address = start; address < end; address += HPAGE_SIZE) { + for (address = start; address < end; address += sz) { ptep = huge_pte_offset(mm, address); if (!ptep) continue; @@ -1383,6 +1410,7 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pte_t *ptep, pte_t pte, struct page *pagecache_page) { + struct hstate *h = hstate_vma(vma); struct page *old_page, *new_page; int avoidcopy; int outside_reserve = 0; @@ -1443,7 +1471,7 @@ retry_avoidcopy: __SetPageUptodate(new_page); spin_lock(&mm->page_table_lock); - ptep = huge_pte_offset(mm, address & HPAGE_MASK); + ptep = huge_pte_offset(mm, address & huge_page_mask(h)); if (likely(pte_same(huge_ptep_get(ptep), pte))) { /* Break COW */ huge_ptep_clear_flush(vma, address, ptep); @@ -1458,14 +1486,14 @@ retry_avoidcopy: } /* Return the pagecache page at a given address within a VMA */ -static struct page *hugetlbfs_pagecache_page(struct vm_area_struct *vma, - unsigned long address) +static struct page *hugetlbfs_pagecache_page(struct hstate *h, + struct vm_area_struct *vma, unsigned long address) { struct address_space *mapping; pgoff_t idx; mapping = vma->vm_file->f_mapping; - idx = vma_hugecache_offset(vma, address); + idx = vma_hugecache_offset(h, vma, address); return find_lock_page(mapping, idx); } @@ -1473,6 +1501,7 @@ static struct page *hugetlbfs_pagecache_page(struct vm_area_struct *vma, static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pte_t *ptep, int write_access) { + struct hstate *h = hstate_vma(vma); int ret = VM_FAULT_SIGBUS; pgoff_t idx; unsigned long size; @@ -1493,7 +1522,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, } mapping = vma->vm_file->f_mapping; - idx = vma_hugecache_offset(vma, address); + idx = vma_hugecache_offset(h, vma, address); /* * Use page lock to guard against racing truncation @@ -1502,7 +1531,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, retry: page = find_lock_page(mapping, idx); if (!page) { - size = i_size_read(mapping->host) >> HPAGE_SHIFT; + size = i_size_read(mapping->host) >> huge_page_shift(h); if (idx >= size) goto out; page = alloc_huge_page(vma, address, 0); @@ -1510,7 +1539,7 @@ retry: ret = -PTR_ERR(page); goto out; } - clear_huge_page(page, address); + clear_huge_page(page, address, huge_page_size(h)); __SetPageUptodate(page); if (vma->vm_flags & VM_SHARED) { @@ -1526,14 +1555,14 @@ retry: } spin_lock(&inode->i_lock); - inode->i_blocks += BLOCKS_PER_HUGEPAGE; + inode->i_blocks += blocks_per_huge_page(h); spin_unlock(&inode->i_lock); } else lock_page(page); } spin_lock(&mm->page_table_lock); - size = i_size_read(mapping->host) >> HPAGE_SHIFT; + size = i_size_read(mapping->host) >> huge_page_shift(h); if (idx >= size) goto backout; @@ -1569,8 +1598,9 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, pte_t entry; int ret; static DEFINE_MUTEX(hugetlb_instantiation_mutex); + struct hstate *h = hstate_vma(vma); - ptep = huge_pte_alloc(mm, address); + ptep = huge_pte_alloc(mm, address, huge_page_size(h)); if (!ptep) return VM_FAULT_OOM; @@ -1594,7 +1624,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (likely(pte_same(entry, huge_ptep_get(ptep)))) if (write_access && !pte_write(entry)) { struct page *page; - page = hugetlbfs_pagecache_page(vma, address); + page = hugetlbfs_pagecache_page(h, vma, address); ret = hugetlb_cow(mm, vma, address, ptep, entry, page); if (page) { unlock_page(page); @@ -1615,6 +1645,7 @@ int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long pfn_offset; unsigned long vaddr = *position; int remainder = *length; + struct hstate *h = hstate_vma(vma); spin_lock(&mm->page_table_lock); while (vaddr < vma->vm_end && remainder) { @@ -1626,7 +1657,7 @@ int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, * each hugepage. We have to make * sure we get the * first, for the page indexing below to work. */ - pte = huge_pte_offset(mm, vaddr & HPAGE_MASK); + pte = huge_pte_offset(mm, vaddr & huge_page_mask(h)); if (!pte || huge_pte_none(huge_ptep_get(pte)) || (write && !pte_write(huge_ptep_get(pte)))) { @@ -1644,7 +1675,7 @@ int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, break; } - pfn_offset = (vaddr & ~HPAGE_MASK) >> PAGE_SHIFT; + pfn_offset = (vaddr & ~huge_page_mask(h)) >> PAGE_SHIFT; page = pte_page(huge_ptep_get(pte)); same_page: if (pages) { @@ -1660,7 +1691,7 @@ same_page: --remainder; ++i; if (vaddr < vma->vm_end && remainder && - pfn_offset < HPAGE_SIZE/PAGE_SIZE) { + pfn_offset < pages_per_huge_page(h)) { /* * We use pfn_offset to avoid touching the pageframes * of this compound page. @@ -1682,13 +1713,14 @@ void hugetlb_change_protection(struct vm_area_struct *vma, unsigned long start = address; pte_t *ptep; pte_t pte; + struct hstate *h = hstate_vma(vma); BUG_ON(address >= end); flush_cache_range(vma, address, end); spin_lock(&vma->vm_file->f_mapping->i_mmap_lock); spin_lock(&mm->page_table_lock); - for (; address < end; address += HPAGE_SIZE) { + for (; address < end; address += huge_page_size(h)) { ptep = huge_pte_offset(mm, address); if (!ptep) continue; @@ -1711,6 +1743,7 @@ int hugetlb_reserve_pages(struct inode *inode, struct vm_area_struct *vma) { long ret, chg; + struct hstate *h = hstate_inode(inode); if (vma && vma->vm_flags & VM_NORESERVE) return 0; @@ -1739,7 +1772,7 @@ int hugetlb_reserve_pages(struct inode *inode, if (hugetlb_get_quota(inode->i_mapping, chg)) return -ENOSPC; - ret = hugetlb_acct_memory(chg); + ret = hugetlb_acct_memory(h, chg); if (ret < 0) { hugetlb_put_quota(inode->i_mapping, chg); return ret; @@ -1751,12 +1784,13 @@ int hugetlb_reserve_pages(struct inode *inode, void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed) { + struct hstate *h = hstate_inode(inode); long chg = region_truncate(&inode->i_mapping->private_list, offset); spin_lock(&inode->i_lock); - inode->i_blocks -= BLOCKS_PER_HUGEPAGE * freed; + inode->i_blocks -= blocks_per_huge_page(h); spin_unlock(&inode->i_lock); hugetlb_put_quota(inode->i_mapping, (chg - freed)); - hugetlb_acct_memory(-(chg - freed)); + hugetlb_acct_memory(h, -(chg - freed)); } diff --git a/mm/memory.c b/mm/memory.c index 72932489a082..c1c1d6d8c22b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -903,7 +903,7 @@ unsigned long unmap_vmas(struct mmu_gather **tlbp, if (unlikely(is_vm_hugetlb_page(vma))) { unmap_hugepage_range(vma, start, end, NULL); zap_work -= (end - start) / - (HPAGE_SIZE / PAGE_SIZE); + pages_per_huge_page(hstate_vma(vma)); start = end; } else start = unmap_page_range(*tlbp, vma, diff --git a/mm/mempolicy.c b/mm/mempolicy.c index c94e58b192c3..e550bec20582 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1481,7 +1481,7 @@ struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr, if (unlikely((*mpol)->mode == MPOL_INTERLEAVE)) { zl = node_zonelist(interleave_nid(*mpol, vma, addr, - HPAGE_SHIFT), gfp_flags); + huge_page_shift(hstate_vma(vma))), gfp_flags); } else { zl = policy_zonelist(gfp_flags, *mpol); if ((*mpol)->mode == MPOL_BIND) @@ -2220,9 +2220,12 @@ static void check_huge_range(struct vm_area_struct *vma, { unsigned long addr; struct page *page; + struct hstate *h = hstate_vma(vma); + unsigned long sz = huge_page_size(h); - for (addr = start; addr < end; addr += HPAGE_SIZE) { - pte_t *ptep = huge_pte_offset(vma->vm_mm, addr & HPAGE_MASK); + for (addr = start; addr < end; addr += sz) { + pte_t *ptep = huge_pte_offset(vma->vm_mm, + addr & huge_page_mask(h)); pte_t pte; if (!ptep) diff --git a/mm/mmap.c b/mm/mmap.c index 57d3b6097deb..5e0cc99e9cd5 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1812,7 +1812,8 @@ int split_vma(struct mm_struct * mm, struct vm_area_struct * vma, struct mempolicy *pol; struct vm_area_struct *new; - if (is_vm_hugetlb_page(vma) && (addr & ~HPAGE_MASK)) + if (is_vm_hugetlb_page(vma) && (addr & + ~(huge_page_mask(hstate_vma(vma))))) return -EINVAL; if (mm->map_count >= sysctl_max_map_count) -- cgit v1.2.3 From e5ff215941d59f8ae6bf58f6428dc5c26745a612 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 23 Jul 2008 21:27:42 -0700 Subject: hugetlb: multiple hstates for multiple page sizes Add basic support for more than one hstate in hugetlbfs. This is the key to supporting multiple hugetlbfs page sizes at once. - Rather than a single hstate, we now have an array, with an iterator - default_hstate continues to be the struct hstate which we use by default - Add functions for architectures to register new hstates [akpm@linux-foundation.org: coding-style fixes] Acked-by: Adam Litke Acked-by: Nishanth Aravamudan Signed-off-by: Andi Kleen Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hugetlb.h | 19 ++++++- kernel/sysctl.c | 8 ++- mm/hugetlb.c | 148 +++++++++++++++++++++++++++++++++++++++--------- 3 files changed, 142 insertions(+), 33 deletions(-) (limited to 'include') diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index ad2271e11f9b..b75bdb4deba3 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -36,8 +36,6 @@ int hugetlb_reserve_pages(struct inode *inode, long from, long to, struct vm_area_struct *vma); void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed); -extern unsigned long max_huge_pages; -extern unsigned long sysctl_overcommit_huge_pages; extern unsigned long hugepages_treat_as_movable; extern const unsigned long hugetlb_zero, hugetlb_infinity; extern int sysctl_hugetlb_shm_group; @@ -181,7 +179,17 @@ struct hstate { unsigned int surplus_huge_pages_node[MAX_NUMNODES]; }; -extern struct hstate default_hstate; +void __init hugetlb_add_hstate(unsigned order); +struct hstate *size_to_hstate(unsigned long size); + +#ifndef HUGE_MAX_HSTATE +#define HUGE_MAX_HSTATE 1 +#endif + +extern struct hstate hstates[HUGE_MAX_HSTATE]; +extern unsigned int default_hstate_idx; + +#define default_hstate (hstates[default_hstate_idx]) static inline struct hstate *hstate_vma(struct vm_area_struct *vma) { @@ -230,6 +238,11 @@ static inline unsigned int blocks_per_huge_page(struct hstate *h) #include +static inline struct hstate *page_hstate(struct page *page) +{ + return size_to_hstate(PAGE_SIZE << compound_order(page)); +} + #else struct hstate {}; #define hstate_file(f) NULL diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 1f7b3b76a166..1a8299d1fe59 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -959,7 +959,7 @@ static struct ctl_table vm_table[] = { #ifdef CONFIG_HUGETLB_PAGE { .procname = "nr_hugepages", - .data = &max_huge_pages, + .data = NULL, .maxlen = sizeof(unsigned long), .mode = 0644, .proc_handler = &hugetlb_sysctl_handler, @@ -985,10 +985,12 @@ static struct ctl_table vm_table[] = { { .ctl_name = CTL_UNNUMBERED, .procname = "nr_overcommit_hugepages", - .data = &sysctl_overcommit_huge_pages, - .maxlen = sizeof(sysctl_overcommit_huge_pages), + .data = NULL, + .maxlen = sizeof(unsigned long), .mode = 0644, .proc_handler = &hugetlb_overcommit_handler, + .extra1 = (void *)&hugetlb_zero, + .extra2 = (void *)&hugetlb_infinity, }, #endif { diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0d8153e25f09..82378d44a0c5 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -22,12 +22,19 @@ #include "internal.h" const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL; -unsigned long max_huge_pages; -unsigned long sysctl_overcommit_huge_pages; static gfp_t htlb_alloc_mask = GFP_HIGHUSER; unsigned long hugepages_treat_as_movable; -struct hstate default_hstate; +static int max_hstate; +unsigned int default_hstate_idx; +struct hstate hstates[HUGE_MAX_HSTATE]; + +/* for command line parsing */ +static struct hstate * __initdata parsed_hstate; +static unsigned long __initdata default_hstate_max_huge_pages; + +#define for_each_hstate(h) \ + for ((h) = hstates; (h) < &hstates[max_hstate]; (h)++) /* * Protects updates to hugepage_freelists, nr_huge_pages, and free_huge_pages @@ -454,13 +461,24 @@ static void update_and_free_page(struct hstate *h, struct page *page) __free_pages(page, huge_page_order(h)); } +struct hstate *size_to_hstate(unsigned long size) +{ + struct hstate *h; + + for_each_hstate(h) { + if (huge_page_size(h) == size) + return h; + } + return NULL; +} + static void free_huge_page(struct page *page) { /* * Can't pass hstate in here because it is called from the * compound page destructor. */ - struct hstate *h = &default_hstate; + struct hstate *h = page_hstate(page); int nid = page_to_nid(page); struct address_space *mapping; @@ -887,39 +905,94 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, return page; } -static int __init hugetlb_init(void) +static void __init hugetlb_init_one_hstate(struct hstate *h) { unsigned long i; - struct hstate *h = &default_hstate; - - if (HPAGE_SHIFT == 0) - return 0; - - if (!h->order) { - h->order = HPAGE_SHIFT - PAGE_SHIFT; - h->mask = HPAGE_MASK; - } for (i = 0; i < MAX_NUMNODES; ++i) INIT_LIST_HEAD(&h->hugepage_freelists[i]); h->hugetlb_next_nid = first_node(node_online_map); - for (i = 0; i < max_huge_pages; ++i) { + for (i = 0; i < h->max_huge_pages; ++i) { if (!alloc_fresh_huge_page(h)) break; } - max_huge_pages = h->free_huge_pages = h->nr_huge_pages = i; - printk(KERN_INFO "Total HugeTLB memory allocated, %ld\n", - h->free_huge_pages); + h->max_huge_pages = h->free_huge_pages = h->nr_huge_pages = i; +} + +static void __init hugetlb_init_hstates(void) +{ + struct hstate *h; + + for_each_hstate(h) { + hugetlb_init_one_hstate(h); + } +} + +static void __init report_hugepages(void) +{ + struct hstate *h; + + for_each_hstate(h) { + printk(KERN_INFO "Total HugeTLB memory allocated, " + "%ld %dMB pages\n", + h->free_huge_pages, + 1 << (h->order + PAGE_SHIFT - 20)); + } +} + +static int __init hugetlb_init(void) +{ + BUILD_BUG_ON(HPAGE_SHIFT == 0); + + if (!size_to_hstate(HPAGE_SIZE)) { + hugetlb_add_hstate(HUGETLB_PAGE_ORDER); + parsed_hstate->max_huge_pages = default_hstate_max_huge_pages; + } + default_hstate_idx = size_to_hstate(HPAGE_SIZE) - hstates; + + hugetlb_init_hstates(); + + report_hugepages(); + return 0; } module_init(hugetlb_init); +/* Should be called on processing a hugepagesz=... option */ +void __init hugetlb_add_hstate(unsigned order) +{ + struct hstate *h; + if (size_to_hstate(PAGE_SIZE << order)) { + printk(KERN_WARNING "hugepagesz= specified twice, ignoring\n"); + return; + } + BUG_ON(max_hstate >= HUGE_MAX_HSTATE); + BUG_ON(order == 0); + h = &hstates[max_hstate++]; + h->order = order; + h->mask = ~((1ULL << (order + PAGE_SHIFT)) - 1); + hugetlb_init_one_hstate(h); + parsed_hstate = h; +} + static int __init hugetlb_setup(char *s) { - if (sscanf(s, "%lu", &max_huge_pages) <= 0) - max_huge_pages = 0; + unsigned long *mhp; + + /* + * !max_hstate means we haven't parsed a hugepagesz= parameter yet, + * so this hugepages= parameter goes to the "default hstate". + */ + if (!max_hstate) + mhp = &default_hstate_max_huge_pages; + else + mhp = &parsed_hstate->max_huge_pages; + + if (sscanf(s, "%lu", mhp) <= 0) + *mhp = 0; + return 1; } __setup("hugepages=", hugetlb_setup); @@ -950,7 +1023,7 @@ static void try_to_free_low(struct hstate *h, unsigned long count) if (PageHighMem(page)) continue; list_del(&page->lru); - update_and_free_page(page); + update_and_free_page(h, page); h->free_huge_pages--; h->free_huge_pages_node[page_to_nid(page)]--; } @@ -963,10 +1036,9 @@ static inline void try_to_free_low(struct hstate *h, unsigned long count) #endif #define persistent_huge_pages(h) (h->nr_huge_pages - h->surplus_huge_pages) -static unsigned long set_max_huge_pages(unsigned long count) +static unsigned long set_max_huge_pages(struct hstate *h, unsigned long count) { unsigned long min_count, ret; - struct hstate *h = &default_hstate; /* * Increase the pool size @@ -1037,8 +1109,19 @@ int hugetlb_sysctl_handler(struct ctl_table *table, int write, struct file *file, void __user *buffer, size_t *length, loff_t *ppos) { + struct hstate *h = &default_hstate; + unsigned long tmp; + + if (!write) + tmp = h->max_huge_pages; + + table->data = &tmp; + table->maxlen = sizeof(unsigned long); proc_doulongvec_minmax(table, write, file, buffer, length, ppos); - max_huge_pages = set_max_huge_pages(max_huge_pages); + + if (write) + h->max_huge_pages = set_max_huge_pages(h, tmp); + return 0; } @@ -1059,10 +1142,21 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write, size_t *length, loff_t *ppos) { struct hstate *h = &default_hstate; + unsigned long tmp; + + if (!write) + tmp = h->nr_overcommit_huge_pages; + + table->data = &tmp; + table->maxlen = sizeof(unsigned long); proc_doulongvec_minmax(table, write, file, buffer, length, ppos); - spin_lock(&hugetlb_lock); - h->nr_overcommit_huge_pages = sysctl_overcommit_huge_pages; - spin_unlock(&hugetlb_lock); + + if (write) { + spin_lock(&hugetlb_lock); + h->nr_overcommit_huge_pages = tmp; + spin_unlock(&hugetlb_lock); + } + return 0; } -- cgit v1.2.3 From a137e1cc6d6e7d315fef03962a2a5a113348b13b Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 23 Jul 2008 21:27:43 -0700 Subject: hugetlbfs: per mount huge page sizes Add the ability to configure the hugetlb hstate used on a per mount basis. - Add a new pagesize= option to the hugetlbfs mount that allows setting the page size - This option causes the mount code to find the hstate corresponding to the specified size, and sets up a pointer to the hstate in the mount's superblock. - Change the hstate accessors to use this information rather than the global_hstate they were using (requires a slight change in mm/memory.c so we don't NULL deref in the error-unmap path -- see comments). [np: take hstate out of hugetlbfs inode and vma->vm_private_data] Acked-by: Adam Litke Acked-by: Nishanth Aravamudan Signed-off-by: Andi Kleen Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/hugetlbfs/inode.c | 45 ++++++++++++++++++++++++++++++++++++--------- include/linux/hugetlb.h | 14 +++++++++----- mm/hugetlb.c | 16 +++------------- mm/memory.c | 18 ++++++++++++++++-- 4 files changed, 64 insertions(+), 29 deletions(-) (limited to 'include') diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 516c581b5371..dbd01d262ca4 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -53,6 +53,7 @@ int sysctl_hugetlb_shm_group; enum { Opt_size, Opt_nr_inodes, Opt_mode, Opt_uid, Opt_gid, + Opt_pagesize, Opt_err, }; @@ -62,6 +63,7 @@ static match_table_t tokens = { {Opt_mode, "mode=%o"}, {Opt_uid, "uid=%u"}, {Opt_gid, "gid=%u"}, + {Opt_pagesize, "pagesize=%s"}, {Opt_err, NULL}, }; @@ -750,6 +752,8 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig) char *p, *rest; substring_t args[MAX_OPT_ARGS]; int option; + unsigned long long size = 0; + enum { NO_SIZE, SIZE_STD, SIZE_PERCENT } setsize = NO_SIZE; if (!options) return 0; @@ -780,17 +784,13 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig) break; case Opt_size: { - unsigned long long size; /* memparse() will accept a K/M/G without a digit */ if (!isdigit(*args[0].from)) goto bad_val; size = memparse(args[0].from, &rest); - if (*rest == '%') { - size <<= HPAGE_SHIFT; - size *= max_huge_pages; - do_div(size, 100); - } - pconfig->nr_blocks = (size >> HPAGE_SHIFT); + setsize = SIZE_STD; + if (*rest == '%') + setsize = SIZE_PERCENT; break; } @@ -801,6 +801,19 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig) pconfig->nr_inodes = memparse(args[0].from, &rest); break; + case Opt_pagesize: { + unsigned long ps; + ps = memparse(args[0].from, &rest); + pconfig->hstate = size_to_hstate(ps); + if (!pconfig->hstate) { + printk(KERN_ERR + "hugetlbfs: Unsupported page size %lu MB\n", + ps >> 20); + return -EINVAL; + } + break; + } + default: printk(KERN_ERR "hugetlbfs: Bad mount option: \"%s\"\n", p); @@ -808,6 +821,18 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig) break; } } + + /* Do size after hstate is set up */ + if (setsize > NO_SIZE) { + struct hstate *h = pconfig->hstate; + if (setsize == SIZE_PERCENT) { + size <<= huge_page_shift(h); + size *= h->max_huge_pages; + do_div(size, 100); + } + pconfig->nr_blocks = (size >> huge_page_shift(h)); + } + return 0; bad_val: @@ -832,6 +857,7 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent) config.uid = current->fsuid; config.gid = current->fsgid; config.mode = 0755; + config.hstate = &default_hstate; ret = hugetlbfs_parse_options(data, &config); if (ret) return ret; @@ -840,14 +866,15 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent) if (!sbinfo) return -ENOMEM; sb->s_fs_info = sbinfo; + sbinfo->hstate = config.hstate; spin_lock_init(&sbinfo->stat_lock); sbinfo->max_blocks = config.nr_blocks; sbinfo->free_blocks = config.nr_blocks; sbinfo->max_inodes = config.nr_inodes; sbinfo->free_inodes = config.nr_inodes; sb->s_maxbytes = MAX_LFS_FILESIZE; - sb->s_blocksize = HPAGE_SIZE; - sb->s_blocksize_bits = HPAGE_SHIFT; + sb->s_blocksize = huge_page_size(config.hstate); + sb->s_blocksize_bits = huge_page_shift(config.hstate); sb->s_magic = HUGETLBFS_MAGIC; sb->s_op = &hugetlbfs_ops; sb->s_time_gran = 1; diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index b75bdb4deba3..ba9263e631b9 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -100,6 +100,7 @@ struct hugetlbfs_config { umode_t mode; long nr_blocks; long nr_inodes; + struct hstate *hstate; }; struct hugetlbfs_sb_info { @@ -108,6 +109,7 @@ struct hugetlbfs_sb_info { long max_inodes; /* inodes allowed */ long free_inodes; /* inodes free */ spinlock_t stat_lock; + struct hstate *hstate; }; @@ -191,19 +193,21 @@ extern unsigned int default_hstate_idx; #define default_hstate (hstates[default_hstate_idx]) -static inline struct hstate *hstate_vma(struct vm_area_struct *vma) +static inline struct hstate *hstate_inode(struct inode *i) { - return &default_hstate; + struct hugetlbfs_sb_info *hsb; + hsb = HUGETLBFS_SB(i->i_sb); + return hsb->hstate; } static inline struct hstate *hstate_file(struct file *f) { - return &default_hstate; + return hstate_inode(f->f_dentry->d_inode); } -static inline struct hstate *hstate_inode(struct inode *i) +static inline struct hstate *hstate_vma(struct vm_area_struct *vma) { - return &default_hstate; + return hstate_file(vma->vm_file); } static inline unsigned long huge_page_size(struct hstate *h) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 82378d44a0c5..4cf7a90e9140 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1439,19 +1439,9 @@ void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, unsigned long end, struct page *ref_page) { - /* - * It is undesirable to test vma->vm_file as it should be non-null - * for valid hugetlb area. However, vm_file will be NULL in the error - * cleanup path of do_mmap_pgoff. When hugetlbfs ->mmap method fails, - * do_mmap_pgoff() nullifies vma->vm_file before calling this function - * to clean up. Since no pte has actually been setup, it is safe to - * do nothing in this case. - */ - if (vma->vm_file) { - spin_lock(&vma->vm_file->f_mapping->i_mmap_lock); - __unmap_hugepage_range(vma, start, end, ref_page); - spin_unlock(&vma->vm_file->f_mapping->i_mmap_lock); - } + spin_lock(&vma->vm_file->f_mapping->i_mmap_lock); + __unmap_hugepage_range(vma, start, end, ref_page); + spin_unlock(&vma->vm_file->f_mapping->i_mmap_lock); } /* diff --git a/mm/memory.c b/mm/memory.c index c1c1d6d8c22b..02fc6b1047b0 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -901,9 +901,23 @@ unsigned long unmap_vmas(struct mmu_gather **tlbp, } if (unlikely(is_vm_hugetlb_page(vma))) { - unmap_hugepage_range(vma, start, end, NULL); - zap_work -= (end - start) / + /* + * It is undesirable to test vma->vm_file as it + * should be non-null for valid hugetlb area. + * However, vm_file will be NULL in the error + * cleanup path of do_mmap_pgoff. When + * hugetlbfs ->mmap method fails, + * do_mmap_pgoff() nullifies vma->vm_file + * before calling this function to clean up. + * Since no pte has actually been setup, it is + * safe to do nothing in this case. + */ + if (vma->vm_file) { + unmap_hugepage_range(vma, start, end, NULL); + zap_work -= (end - start) / pages_per_huge_page(hstate_vma(vma)); + } + start = end; } else start = unmap_page_range(*tlbp, vma, -- cgit v1.2.3 From a3437870160cf2caaac6bdd76c7377a5a4145a8c Mon Sep 17 00:00:00 2001 From: Nishanth Aravamudan Date: Wed, 23 Jul 2008 21:27:44 -0700 Subject: hugetlb: new sysfs interface Provide new hugepages user APIs that are more suited to multiple hstates in sysfs. There is a new directory, /sys/kernel/hugepages. Underneath that directory there will be a directory per-supported hugepage size, e.g.: /sys/kernel/hugepages/hugepages-64kB /sys/kernel/hugepages/hugepages-16384kB /sys/kernel/hugepages/hugepages-16777216kB corresponding to 64k, 16m and 16g respectively. Within each hugepages-size directory there are a number of files, corresponding to the tracked counters in the hstate, e.g.: /sys/kernel/hugepages/hugepages-64/nr_hugepages /sys/kernel/hugepages/hugepages-64/nr_overcommit_hugepages /sys/kernel/hugepages/hugepages-64/free_hugepages /sys/kernel/hugepages/hugepages-64/resv_hugepages /sys/kernel/hugepages/hugepages-64/surplus_hugepages Of these files, the first two are read-write and the latter three are read-only. The size of the hugepage being manipulated is trivially deducible from the enclosing directory and is always expressed in kB (to match meminfo). [dave@linux.vnet.ibm.com: fix build] [nacc@us.ibm.com: hugetlb: hang off of /sys/kernel/mm rather than /sys/kernel] [nacc@us.ibm.com: hugetlb: remove CONFIG_SYSFS dependency] Acked-by: Greg Kroah-Hartman Signed-off-by: Nishanth Aravamudan Signed-off-by: Nick Piggin Cc: Dave Hansen Signed-off-by: Nishanth Aravamudan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- .../ABI/testing/sysfs-kernel-mm-hugepages | 15 ++ Documentation/vm/hugetlbpage.txt | 23 ++ include/linux/hugetlb.h | 2 + mm/hugetlb.c | 288 ++++++++++++++++----- 4 files changed, 262 insertions(+), 66 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-kernel-mm-hugepages (limited to 'include') diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-hugepages b/Documentation/ABI/testing/sysfs-kernel-mm-hugepages new file mode 100644 index 000000000000..e21c00571cf4 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-kernel-mm-hugepages @@ -0,0 +1,15 @@ +What: /sys/kernel/mm/hugepages/ +Date: June 2008 +Contact: Nishanth Aravamudan , hugetlb maintainers +Description: + /sys/kernel/mm/hugepages/ contains a number of subdirectories + of the form hugepages-kB, where is the page size + of the hugepages supported by the kernel/CPU combination. + + Under these directories are a number of files: + nr_hugepages + nr_overcommit_hugepages + free_hugepages + surplus_hugepages + resv_hugepages + See Documentation/vm/hugetlbpage.txt for details. diff --git a/Documentation/vm/hugetlbpage.txt b/Documentation/vm/hugetlbpage.txt index 3102b81bef88..8a5b5763f0fe 100644 --- a/Documentation/vm/hugetlbpage.txt +++ b/Documentation/vm/hugetlbpage.txt @@ -95,6 +95,29 @@ this condition holds, however, no more surplus huge pages will be allowed on the system until one of the two sysctls are increased sufficiently, or the surplus huge pages go out of use and are freed. +With support for multiple hugepage pools at run-time available, much of +the hugepage userspace interface has been duplicated in sysfs. The above +information applies to the default hugepage size (which will be +controlled by the proc interfaces for backwards compatibility). The root +hugepage control directory is + + /sys/kernel/mm/hugepages + +For each hugepage size supported by the running kernel, a subdirectory +will exist, of the form + + hugepages-${size}kB + +Inside each of these directories, the same set of files will exist: + + nr_hugepages + nr_overcommit_hugepages + free_hugepages + resv_hugepages + surplus_hugepages + +which function as described above for the default hugepage-sized case. + If the user applications are going to request hugepages using mmap system call, then it is required that system administrator mount a file system of type hugetlbfs: diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index ba9263e631b9..58c0de32e7f0 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -164,6 +164,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, #ifdef CONFIG_HUGETLB_PAGE +#define HSTATE_NAME_LEN 32 /* Defines one hugetlb page size */ struct hstate { int hugetlb_next_nid; @@ -179,6 +180,7 @@ struct hstate { unsigned int nr_huge_pages_node[MAX_NUMNODES]; unsigned int free_huge_pages_node[MAX_NUMNODES]; unsigned int surplus_huge_pages_node[MAX_NUMNODES]; + char name[HSTATE_NAME_LEN]; }; void __init hugetlb_add_hstate(unsigned order); diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 4cf7a90e9140..bb49ce5d0067 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -942,72 +943,6 @@ static void __init report_hugepages(void) } } -static int __init hugetlb_init(void) -{ - BUILD_BUG_ON(HPAGE_SHIFT == 0); - - if (!size_to_hstate(HPAGE_SIZE)) { - hugetlb_add_hstate(HUGETLB_PAGE_ORDER); - parsed_hstate->max_huge_pages = default_hstate_max_huge_pages; - } - default_hstate_idx = size_to_hstate(HPAGE_SIZE) - hstates; - - hugetlb_init_hstates(); - - report_hugepages(); - - return 0; -} -module_init(hugetlb_init); - -/* Should be called on processing a hugepagesz=... option */ -void __init hugetlb_add_hstate(unsigned order) -{ - struct hstate *h; - if (size_to_hstate(PAGE_SIZE << order)) { - printk(KERN_WARNING "hugepagesz= specified twice, ignoring\n"); - return; - } - BUG_ON(max_hstate >= HUGE_MAX_HSTATE); - BUG_ON(order == 0); - h = &hstates[max_hstate++]; - h->order = order; - h->mask = ~((1ULL << (order + PAGE_SHIFT)) - 1); - hugetlb_init_one_hstate(h); - parsed_hstate = h; -} - -static int __init hugetlb_setup(char *s) -{ - unsigned long *mhp; - - /* - * !max_hstate means we haven't parsed a hugepagesz= parameter yet, - * so this hugepages= parameter goes to the "default hstate". - */ - if (!max_hstate) - mhp = &default_hstate_max_huge_pages; - else - mhp = &parsed_hstate->max_huge_pages; - - if (sscanf(s, "%lu", mhp) <= 0) - *mhp = 0; - - return 1; -} -__setup("hugepages=", hugetlb_setup); - -static unsigned int cpuset_mems_nr(unsigned int *array) -{ - int node; - unsigned int nr = 0; - - for_each_node_mask(node, cpuset_current_mems_allowed) - nr += array[node]; - - return nr; -} - #ifdef CONFIG_SYSCTL #ifdef CONFIG_HIGHMEM static void try_to_free_low(struct hstate *h, unsigned long count) @@ -1105,6 +1040,227 @@ out: return ret; } +#define HSTATE_ATTR_RO(_name) \ + static struct kobj_attribute _name##_attr = __ATTR_RO(_name) + +#define HSTATE_ATTR(_name) \ + static struct kobj_attribute _name##_attr = \ + __ATTR(_name, 0644, _name##_show, _name##_store) + +static struct kobject *hugepages_kobj; +static struct kobject *hstate_kobjs[HUGE_MAX_HSTATE]; + +static struct hstate *kobj_to_hstate(struct kobject *kobj) +{ + int i; + for (i = 0; i < HUGE_MAX_HSTATE; i++) + if (hstate_kobjs[i] == kobj) + return &hstates[i]; + BUG(); + return NULL; +} + +static ssize_t nr_hugepages_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct hstate *h = kobj_to_hstate(kobj); + return sprintf(buf, "%lu\n", h->nr_huge_pages); +} +static ssize_t nr_hugepages_store(struct kobject *kobj, + struct kobj_attribute *attr, const char *buf, size_t count) +{ + int err; + unsigned long input; + struct hstate *h = kobj_to_hstate(kobj); + + err = strict_strtoul(buf, 10, &input); + if (err) + return 0; + + h->max_huge_pages = set_max_huge_pages(h, input); + + return count; +} +HSTATE_ATTR(nr_hugepages); + +static ssize_t nr_overcommit_hugepages_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct hstate *h = kobj_to_hstate(kobj); + return sprintf(buf, "%lu\n", h->nr_overcommit_huge_pages); +} +static ssize_t nr_overcommit_hugepages_store(struct kobject *kobj, + struct kobj_attribute *attr, const char *buf, size_t count) +{ + int err; + unsigned long input; + struct hstate *h = kobj_to_hstate(kobj); + + err = strict_strtoul(buf, 10, &input); + if (err) + return 0; + + spin_lock(&hugetlb_lock); + h->nr_overcommit_huge_pages = input; + spin_unlock(&hugetlb_lock); + + return count; +} +HSTATE_ATTR(nr_overcommit_hugepages); + +static ssize_t free_hugepages_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct hstate *h = kobj_to_hstate(kobj); + return sprintf(buf, "%lu\n", h->free_huge_pages); +} +HSTATE_ATTR_RO(free_hugepages); + +static ssize_t resv_hugepages_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct hstate *h = kobj_to_hstate(kobj); + return sprintf(buf, "%lu\n", h->resv_huge_pages); +} +HSTATE_ATTR_RO(resv_hugepages); + +static ssize_t surplus_hugepages_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct hstate *h = kobj_to_hstate(kobj); + return sprintf(buf, "%lu\n", h->surplus_huge_pages); +} +HSTATE_ATTR_RO(surplus_hugepages); + +static struct attribute *hstate_attrs[] = { + &nr_hugepages_attr.attr, + &nr_overcommit_hugepages_attr.attr, + &free_hugepages_attr.attr, + &resv_hugepages_attr.attr, + &surplus_hugepages_attr.attr, + NULL, +}; + +static struct attribute_group hstate_attr_group = { + .attrs = hstate_attrs, +}; + +static int __init hugetlb_sysfs_add_hstate(struct hstate *h) +{ + int retval; + + hstate_kobjs[h - hstates] = kobject_create_and_add(h->name, + hugepages_kobj); + if (!hstate_kobjs[h - hstates]) + return -ENOMEM; + + retval = sysfs_create_group(hstate_kobjs[h - hstates], + &hstate_attr_group); + if (retval) + kobject_put(hstate_kobjs[h - hstates]); + + return retval; +} + +static void __init hugetlb_sysfs_init(void) +{ + struct hstate *h; + int err; + + hugepages_kobj = kobject_create_and_add("hugepages", mm_kobj); + if (!hugepages_kobj) + return; + + for_each_hstate(h) { + err = hugetlb_sysfs_add_hstate(h); + if (err) + printk(KERN_ERR "Hugetlb: Unable to add hstate %s", + h->name); + } +} + +static void __exit hugetlb_exit(void) +{ + struct hstate *h; + + for_each_hstate(h) { + kobject_put(hstate_kobjs[h - hstates]); + } + + kobject_put(hugepages_kobj); +} +module_exit(hugetlb_exit); + +static int __init hugetlb_init(void) +{ + BUILD_BUG_ON(HPAGE_SHIFT == 0); + + if (!size_to_hstate(HPAGE_SIZE)) { + hugetlb_add_hstate(HUGETLB_PAGE_ORDER); + parsed_hstate->max_huge_pages = default_hstate_max_huge_pages; + } + default_hstate_idx = size_to_hstate(HPAGE_SIZE) - hstates; + + hugetlb_init_hstates(); + + report_hugepages(); + + hugetlb_sysfs_init(); + + return 0; +} +module_init(hugetlb_init); + +/* Should be called on processing a hugepagesz=... option */ +void __init hugetlb_add_hstate(unsigned order) +{ + struct hstate *h; + if (size_to_hstate(PAGE_SIZE << order)) { + printk(KERN_WARNING "hugepagesz= specified twice, ignoring\n"); + return; + } + BUG_ON(max_hstate >= HUGE_MAX_HSTATE); + BUG_ON(order == 0); + h = &hstates[max_hstate++]; + h->order = order; + h->mask = ~((1ULL << (order + PAGE_SHIFT)) - 1); + snprintf(h->name, HSTATE_NAME_LEN, "hugepages-%lukB", + huge_page_size(h)/1024); + hugetlb_init_one_hstate(h); + parsed_hstate = h; +} + +static int __init hugetlb_setup(char *s) +{ + unsigned long *mhp; + + /* + * !max_hstate means we haven't parsed a hugepagesz= parameter yet, + * so this hugepages= parameter goes to the "default hstate". + */ + if (!max_hstate) + mhp = &default_hstate_max_huge_pages; + else + mhp = &parsed_hstate->max_huge_pages; + + if (sscanf(s, "%lu", mhp) <= 0) + *mhp = 0; + + return 1; +} +__setup("hugepages=", hugetlb_setup); + +static unsigned int cpuset_mems_nr(unsigned int *array) +{ + int node; + unsigned int nr = 0; + + for_each_node_mask(node, cpuset_current_mems_allowed) + nr += array[node]; + + return nr; +} + int hugetlb_sysctl_handler(struct ctl_table *table, int write, struct file *file, void __user *buffer, size_t *length, loff_t *ppos) -- cgit v1.2.3 From b54bbf7b81170f03597c17dd0b559e3006bc9868 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 23 Jul 2008 21:27:45 -0700 Subject: mm: introduce non panic alloc_bootmem Straight forward variant of the existing __alloc_bootmem_node, only subsequent patch when allocating giant hugepages at boot -- don't want to panic if we can't allocate as many as the user asked for. Signed-off-by: Andi Kleen Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bootmem.h | 4 ++++ mm/bootmem.c | 12 ++++++++++++ 2 files changed, 16 insertions(+) (limited to 'include') diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index dd8fee6c46d9..f352c5f125b4 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -89,6 +89,10 @@ extern void *__alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal); +extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat, + unsigned long size, + unsigned long align, + unsigned long goal); extern unsigned long init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn, unsigned long startpfn, diff --git a/mm/bootmem.c b/mm/bootmem.c index 4bc6ae2fbaa3..9ac972535fff 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -578,6 +578,18 @@ void * __init alloc_bootmem_section(unsigned long size, } #endif +void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size, + unsigned long align, unsigned long goal) +{ + void *ptr; + + ptr = alloc_bootmem_core(pgdat->bdata, size, align, goal, 0); + if (ptr) + return ptr; + + return __alloc_bootmem_nopanic(size, align, goal); +} + #ifndef ARCH_LOW_ADDRESS_LIMIT #define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL #endif -- cgit v1.2.3 From ceb868796181dc95ea01a110e123afd391639873 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 23 Jul 2008 21:27:50 -0700 Subject: hugetlb: introduce pud_huge Straight forward extensions for huge pages located in the PUD instead of PMDs. Signed-off-by: Andi Kleen Signed-off-by: Nick Piggin Cc: Martin Schwidefsky Cc: Heiko Carstens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/mm/hugetlbpage.c | 6 ++++++ arch/powerpc/mm/hugetlbpage.c | 5 +++++ arch/s390/mm/hugetlbpage.c | 5 +++++ arch/sh/mm/hugetlbpage.c | 5 +++++ arch/sparc64/mm/hugetlbpage.c | 5 +++++ arch/x86/mm/hugetlbpage.c | 25 ++++++++++++++++++++++++- include/linux/hugetlb.h | 5 +++++ mm/hugetlb.c | 9 +++++++++ mm/memory.c | 15 +++++++++++---- 9 files changed, 75 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index 6170f097d255..c45fc7f5a979 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c @@ -107,6 +107,12 @@ int pmd_huge(pmd_t pmd) { return 0; } + +int pud_huge(pud_t pud) +{ + return 0; +} + struct page * follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write) { diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index c94dc71af989..63db7adce717 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -369,6 +369,11 @@ int pmd_huge(pmd_t pmd) return 0; } +int pud_huge(pud_t pud) +{ + return 0; +} + struct page * follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write) diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index 9162dc84f77f..f28c43d2f61d 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -120,6 +120,11 @@ int pmd_huge(pmd_t pmd) return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE); } +int pud_huge(pud_t pud) +{ + return 0; +} + struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmdp, int write) { diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c index 2f9dbe0ef4ac..9304117039c4 100644 --- a/arch/sh/mm/hugetlbpage.c +++ b/arch/sh/mm/hugetlbpage.c @@ -79,6 +79,11 @@ int pmd_huge(pmd_t pmd) return 0; } +int pud_huge(pud_t pud) +{ + return 0; +} + struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write) { diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c index 1307b23f6a76..f27d10369e0c 100644 --- a/arch/sparc64/mm/hugetlbpage.c +++ b/arch/sparc64/mm/hugetlbpage.c @@ -295,6 +295,11 @@ int pmd_huge(pmd_t pmd) return 0; } +int pud_huge(pud_t pud) +{ + return 0; +} + struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write) { diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index 52476fde8996..a4789e87a315 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -189,6 +189,11 @@ int pmd_huge(pmd_t pmd) return 0; } +int pud_huge(pud_t pud) +{ + return 0; +} + struct page * follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write) @@ -209,6 +214,11 @@ int pmd_huge(pmd_t pmd) return !!(pmd_val(pmd) & _PAGE_PSE); } +int pud_huge(pud_t pud) +{ + return 0; +} + struct page * follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write) @@ -217,9 +227,22 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address, page = pte_page(*(pte_t *)pmd); if (page) - page += ((address & ~HPAGE_MASK) >> PAGE_SHIFT); + page += ((address & ~PMD_MASK) >> PAGE_SHIFT); return page; } + +struct page * +follow_huge_pud(struct mm_struct *mm, unsigned long address, + pud_t *pud, int write) +{ + struct page *page; + + page = pte_page(*(pte_t *)pud); + if (page) + page += ((address & ~PUD_MASK) >> PAGE_SHIFT); + return page; +} + #endif /* x86_64 also uses this file */ diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 58c0de32e7f0..b2c17f62cacb 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -50,7 +50,10 @@ struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, int write); struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write); +struct page *follow_huge_pud(struct mm_struct *mm, unsigned long address, + pud_t *pud, int write); int pmd_huge(pmd_t pmd); +int pud_huge(pud_t pmd); void hugetlb_change_protection(struct vm_area_struct *vma, unsigned long address, unsigned long end, pgprot_t newprot); @@ -78,8 +81,10 @@ static inline unsigned long hugetlb_total_pages(void) #define hugetlb_report_meminfo(buf) 0 #define hugetlb_report_node_meminfo(n, buf) 0 #define follow_huge_pmd(mm, addr, pmd, write) NULL +#define follow_huge_pud(mm, addr, pud, write) NULL #define prepare_hugepage_range(file, addr, len) (-EINVAL) #define pmd_huge(x) 0 +#define pud_huge(x) 0 #define is_hugepage_only_range(mm, addr, len) 0 #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; }) #define hugetlb_fault(mm, vma, addr, write) ({ BUG(); 0; }) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0c74c14dd2f7..107c1ce223cb 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1996,6 +1996,15 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, return ret; } +/* Can be overriden by architectures */ +__attribute__((weak)) struct page * +follow_huge_pud(struct mm_struct *mm, unsigned long address, + pud_t *pud, int write) +{ + BUG(); + return NULL; +} + int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, struct page **pages, struct vm_area_struct **vmas, unsigned long *position, int *length, int i, diff --git a/mm/memory.c b/mm/memory.c index 02fc6b1047b0..262e3eb6601a 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -998,19 +998,24 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address, goto no_page_table; pud = pud_offset(pgd, address); - if (pud_none(*pud) || unlikely(pud_bad(*pud))) + if (pud_none(*pud)) + goto no_page_table; + if (pud_huge(*pud)) { + BUG_ON(flags & FOLL_GET); + page = follow_huge_pud(mm, address, pud, flags & FOLL_WRITE); + goto out; + } + if (unlikely(pud_bad(*pud))) goto no_page_table; - + pmd = pmd_offset(pud, address); if (pmd_none(*pmd)) goto no_page_table; - if (pmd_huge(*pmd)) { BUG_ON(flags & FOLL_GET); page = follow_huge_pmd(mm, address, pmd, flags & FOLL_WRITE); goto out; } - if (unlikely(pmd_bad(*pmd))) goto no_page_table; @@ -1567,6 +1572,8 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud, unsigned long next; int err; + BUG_ON(pud_huge(*pud)); + pmd = pmd_alloc(mm, pud, addr); if (!pmd) return -ENOMEM; -- cgit v1.2.3 From b4718e628dbf68a2dee23b5709e2aa3190409c56 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 23 Jul 2008 21:27:51 -0700 Subject: x86: add hugepagesz option on 64-bit Add an hugepagesz=... option similar to IA64, PPC etc. to x86-64. This finally allows to select GB pages for hugetlbfs in x86 now that all the infrastructure is in place. Signed-off-by: Andi Kleen Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/kernel-parameters.txt | 11 +++++++++-- arch/x86/mm/hugetlbpage.c | 17 +++++++++++++++++ include/asm-x86/page.h | 2 ++ 3 files changed, 28 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 5e20ccb5a736..d55fd88fd0a9 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -774,8 +774,15 @@ and is between 256 and 4096 characters. It is defined in the file hisax= [HW,ISDN] See Documentation/isdn/README.HiSax. - hugepages= [HW,X86-32,IA-64] Maximal number of HugeTLB pages. - hugepagesz= [HW,IA-64,PPC] The size of the HugeTLB pages. + hugepages= [HW,X86-32,IA-64] HugeTLB pages to allocate at boot. + hugepagesz= [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages. + On x86 this option can be specified multiple times + interleaved with hugepages= to reserve huge pages + of different sizes. Valid pages sizes on x86-64 + are 2M (when the CPU supports "pse") and 1G (when the + CPU supports the "pdpe1gb" cpuinfo flag) + Note that 1GB pages can only be allocated at boot time + using hugepages= and not freed afterwards. i8042.direct [HW] Put keyboard port into non-translated mode i8042.dumbkbd [HW] Pretend that controller can only read data from diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index b7a65a07af03..8f307d914c2e 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -425,3 +425,20 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, #endif /*HAVE_ARCH_HUGETLB_UNMAPPED_AREA*/ +#ifdef CONFIG_X86_64 +static __init int setup_hugepagesz(char *opt) +{ + unsigned long ps = memparse(opt, &opt); + if (ps == PMD_SIZE) { + hugetlb_add_hstate(PMD_SHIFT - PAGE_SHIFT); + } else if (ps == PUD_SIZE && cpu_has_gbpages) { + hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT); + } else { + printk(KERN_ERR "hugepagesz: Unsupported page size %lu M\n", + ps >> 20); + return 0; + } + return 1; +} +__setup("hugepagesz=", setup_hugepagesz); +#endif diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index 6c846228948d..6e02098b1605 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -32,6 +32,8 @@ #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) +#define HUGE_MAX_HSTATE 2 + /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) -- cgit v1.2.3 From 53ba51d21d6e048424ab8aadfebdb1f25ae07b60 Mon Sep 17 00:00:00 2001 From: Jon Tollefson Date: Wed, 23 Jul 2008 21:27:52 -0700 Subject: hugetlb: allow arch overridden hugepage allocation Allow alloc_bootmem_huge_page() to be overridden by architectures that can't always use bootmem. This requires huge_boot_pages to be available for use by this function. This is required for powerpc 16G pages, which have to be reserved prior to boot-time. The location of these pages are indicated in the device tree. Acked-by: Adam Litke Signed-off-by: Jon Tollefson Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hugetlb.h | 10 ++++++++++ mm/hugetlb.c | 11 +++-------- 2 files changed, 13 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index b2c17f62cacb..9a71d4cc88c8 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -39,6 +39,7 @@ void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed); extern unsigned long hugepages_treat_as_movable; extern const unsigned long hugetlb_zero, hugetlb_infinity; extern int sysctl_hugetlb_shm_group; +extern struct list_head huge_boot_pages; /* arch callbacks */ @@ -188,6 +189,14 @@ struct hstate { char name[HSTATE_NAME_LEN]; }; +struct huge_bootmem_page { + struct list_head list; + struct hstate *hstate; +}; + +/* arch callback */ +int __init alloc_bootmem_huge_page(struct hstate *h); + void __init hugetlb_add_hstate(unsigned order); struct hstate *size_to_hstate(unsigned long size); @@ -256,6 +265,7 @@ static inline struct hstate *page_hstate(struct page *page) #else struct hstate {}; +#define alloc_bootmem_huge_page(h) NULL #define hstate_file(f) NULL #define hstate_vma(v) NULL #define hstate_inode(i) NULL diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 2a2f6e869401..3e1506b808a3 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -31,6 +31,8 @@ static int max_hstate; unsigned int default_hstate_idx; struct hstate hstates[HUGE_MAX_HSTATE]; +__initdata LIST_HEAD(huge_boot_pages); + /* for command line parsing */ static struct hstate * __initdata parsed_hstate; static unsigned long __initdata default_hstate_max_huge_pages; @@ -925,14 +927,7 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, return page; } -static __initdata LIST_HEAD(huge_boot_pages); - -struct huge_bootmem_page { - struct list_head list; - struct hstate *hstate; -}; - -static int __init alloc_bootmem_huge_page(struct hstate *h) +__attribute__((weak)) int alloc_bootmem_huge_page(struct hstate *h) { struct huge_bootmem_page *m; int nr_nodes = nodes_weight(node_online_map); -- cgit v1.2.3 From 658013e93eb70494f7300bc90457b09a807232a4 Mon Sep 17 00:00:00 2001 From: Jon Tollefson Date: Wed, 23 Jul 2008 21:27:54 -0700 Subject: powerpc: scan device tree for gigantic pages The 16G huge pages have to be reserved in the HMC prior to boot. The location of the pages are placed in the device tree. This patch adds code to scan the device tree during very early boot and save these page locations until hugetlbfs is ready for them. Acked-by: Adam Litke Signed-off-by: Jon Tollefson Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/mm/hash_utils_64.c | 44 +++++++++++++++++++++++++++++++++++++++- arch/powerpc/mm/hugetlbpage.c | 16 +++++++++++++++ include/asm-powerpc/mmu-hash64.h | 2 ++ 3 files changed, 61 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 8d3b58ebd38e..ae4c717243a5 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -68,6 +68,7 @@ #define KB (1024) #define MB (1024*KB) +#define GB (1024L*MB) /* * Note: pte --> Linux PTE @@ -329,6 +330,44 @@ static int __init htab_dt_scan_page_sizes(unsigned long node, return 0; } +/* Scan for 16G memory blocks that have been set aside for huge pages + * and reserve those blocks for 16G huge pages. + */ +static int __init htab_dt_scan_hugepage_blocks(unsigned long node, + const char *uname, int depth, + void *data) { + char *type = of_get_flat_dt_prop(node, "device_type", NULL); + unsigned long *addr_prop; + u32 *page_count_prop; + unsigned int expected_pages; + long unsigned int phys_addr; + long unsigned int block_size; + + /* We are scanning "memory" nodes only */ + if (type == NULL || strcmp(type, "memory") != 0) + return 0; + + /* This property is the log base 2 of the number of virtual pages that + * will represent this memory block. */ + page_count_prop = of_get_flat_dt_prop(node, "ibm,expected#pages", NULL); + if (page_count_prop == NULL) + return 0; + expected_pages = (1 << page_count_prop[0]); + addr_prop = of_get_flat_dt_prop(node, "reg", NULL); + if (addr_prop == NULL) + return 0; + phys_addr = addr_prop[0]; + block_size = addr_prop[1]; + if (block_size != (16 * GB)) + return 0; + printk(KERN_INFO "Huge page(16GB) memory: " + "addr = 0x%lX size = 0x%lX pages = %d\n", + phys_addr, block_size, expected_pages); + lmb_reserve(phys_addr, block_size * expected_pages); + add_gpage(phys_addr, block_size, expected_pages); + return 0; +} + static void __init htab_init_page_sizes(void) { int rc; @@ -418,7 +457,10 @@ static void __init htab_init_page_sizes(void) ); #ifdef CONFIG_HUGETLB_PAGE - /* Init large page size. Currently, we pick 16M or 1M depending + /* Reserve 16G huge page memory sections for huge pages */ + of_scan_flat_dt(htab_dt_scan_hugepage_blocks, NULL); + +/* Init large page size. Currently, we pick 16M or 1M depending * on what is available */ if (mmu_psize_defs[MMU_PAGE_16M].shift) diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 5df82186fc93..e2a650a9e533 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -110,6 +110,22 @@ pmd_t *hpmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr) } #endif +/* Build list of addresses of gigantic pages. This function is used in early + * boot before the buddy or bootmem allocator is setup. + */ +void add_gpage(unsigned long addr, unsigned long page_size, + unsigned long number_of_pages) +{ + if (!addr) + return; + while (number_of_pages > 0) { + gpage_freearray[nr_gpages] = addr; + nr_gpages++; + number_of_pages--; + addr += page_size; + } +} + /* Moves the gigantic page addresses from the temporary list to the * huge_boot_pages list. */ int alloc_bootmem_huge_page(struct hstate *h) diff --git a/include/asm-powerpc/mmu-hash64.h b/include/asm-powerpc/mmu-hash64.h index d1dc16afb118..b61181aa7746 100644 --- a/include/asm-powerpc/mmu-hash64.h +++ b/include/asm-powerpc/mmu-hash64.h @@ -281,6 +281,8 @@ extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend, unsigned long pstart, unsigned long mode, int psize, int ssize); extern void set_huge_psize(int psize); +extern void add_gpage(unsigned long addr, unsigned long page_size, + unsigned long number_of_pages); extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr); extern void htab_initialize(void); -- cgit v1.2.3 From 91224346aa8c1cdaa660300a98e0b074a3a95030 Mon Sep 17 00:00:00 2001 From: Jon Tollefson Date: Wed, 23 Jul 2008 21:27:55 -0700 Subject: powerpc: define support for 16G hugepages The huge page size is defined for 16G pages. If a hugepagesz of 16G is specified at boot-time then it becomes the huge page size instead of the default 16M. The change in pgtable-64K.h is to the macro pte_iterate_hashed_subpages to make the increment to va (the 1 being shifted) be a long so that it is not shifted to 0. Otherwise it would create an infinite loop when the shift value is for a 16G page (when base page size is 64K). Signed-off-by: Jon Tollefson Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/mm/hugetlbpage.c | 62 +++++++++++++++++++++++++++------------ include/asm-powerpc/pgtable-64k.h | 2 +- 2 files changed, 45 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index e2a650a9e533..19b1a9cec6d5 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -24,8 +24,9 @@ #include #include -#define HPAGE_SHIFT_64K 16 -#define HPAGE_SHIFT_16M 24 +#define PAGE_SHIFT_64K 16 +#define PAGE_SHIFT_16M 24 +#define PAGE_SHIFT_16G 34 #define NUM_LOW_AREAS (0x100000000UL >> SID_SHIFT) #define NUM_HIGH_AREAS (PGTABLE_RANGE >> HTLB_AREA_SHIFT) @@ -95,7 +96,7 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp, static inline pmd_t *hpmd_offset(pud_t *pud, unsigned long addr) { - if (HPAGE_SHIFT == HPAGE_SHIFT_64K) + if (HPAGE_SHIFT == PAGE_SHIFT_64K) return pmd_offset(pud, addr); else return (pmd_t *) pud; @@ -103,7 +104,7 @@ pmd_t *hpmd_offset(pud_t *pud, unsigned long addr) static inline pmd_t *hpmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr) { - if (HPAGE_SHIFT == HPAGE_SHIFT_64K) + if (HPAGE_SHIFT == PAGE_SHIFT_64K) return pmd_alloc(mm, pud, addr); else return (pmd_t *) pud; @@ -260,7 +261,7 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, continue; hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling); #else - if (HPAGE_SHIFT == HPAGE_SHIFT_64K) { + if (HPAGE_SHIFT == PAGE_SHIFT_64K) { if (pud_none_or_clear_bad(pud)) continue; hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling); @@ -592,20 +593,40 @@ void set_huge_psize(int psize) { /* Check that it is a page size supported by the hardware and * that it fits within pagetable limits. */ - if (mmu_psize_defs[psize].shift && mmu_psize_defs[psize].shift < SID_SHIFT && + if (mmu_psize_defs[psize].shift && + mmu_psize_defs[psize].shift < SID_SHIFT_1T && (mmu_psize_defs[psize].shift > MIN_HUGEPTE_SHIFT || - mmu_psize_defs[psize].shift == HPAGE_SHIFT_64K)) { + mmu_psize_defs[psize].shift == PAGE_SHIFT_64K || + mmu_psize_defs[psize].shift == PAGE_SHIFT_16G)) { + /* Return if huge page size is the same as the + * base page size. */ + if (mmu_psize_defs[psize].shift == PAGE_SHIFT) + return; + HPAGE_SHIFT = mmu_psize_defs[psize].shift; mmu_huge_psize = psize; -#ifdef CONFIG_PPC_64K_PAGES - hugepte_shift = (PMD_SHIFT-HPAGE_SHIFT); -#else - if (HPAGE_SHIFT == HPAGE_SHIFT_64K) - hugepte_shift = (PMD_SHIFT-HPAGE_SHIFT); - else - hugepte_shift = (PUD_SHIFT-HPAGE_SHIFT); -#endif + switch (HPAGE_SHIFT) { + case PAGE_SHIFT_64K: + /* We only allow 64k hpages with 4k base page, + * which was checked above, and always put them + * at the PMD */ + hugepte_shift = PMD_SHIFT; + break; + case PAGE_SHIFT_16M: + /* 16M pages can be at two different levels + * of pagestables based on base page size */ + if (PAGE_SHIFT == PAGE_SHIFT_64K) + hugepte_shift = PMD_SHIFT; + else /* 4k base page */ + hugepte_shift = PUD_SHIFT; + break; + case PAGE_SHIFT_16G: + /* 16G pages are always at PGD level */ + hugepte_shift = PGDIR_SHIFT; + break; + } + hugepte_shift -= HPAGE_SHIFT; } else HPAGE_SHIFT = 0; } @@ -621,17 +642,22 @@ static int __init hugepage_setup_sz(char *str) shift = __ffs(size); switch (shift) { #ifndef CONFIG_PPC_64K_PAGES - case HPAGE_SHIFT_64K: + case PAGE_SHIFT_64K: mmu_psize = MMU_PAGE_64K; break; #endif - case HPAGE_SHIFT_16M: + case PAGE_SHIFT_16M: mmu_psize = MMU_PAGE_16M; break; + case PAGE_SHIFT_16G: + mmu_psize = MMU_PAGE_16G; + break; } - if (mmu_psize >=0 && mmu_psize_defs[mmu_psize].shift) + if (mmu_psize >= 0 && mmu_psize_defs[mmu_psize].shift) { set_huge_psize(mmu_psize); + hugetlb_add_hstate(shift - PAGE_SHIFT); + } else printk(KERN_WARNING "Invalid huge page size specified(%llu)\n", size); diff --git a/include/asm-powerpc/pgtable-64k.h b/include/asm-powerpc/pgtable-64k.h index c5007712473f..7e54adb35596 100644 --- a/include/asm-powerpc/pgtable-64k.h +++ b/include/asm-powerpc/pgtable-64k.h @@ -138,7 +138,7 @@ static inline struct subpage_prot_table *pgd_subpage_prot(pgd_t *pgd) unsigned __split = (psize == MMU_PAGE_4K || \ psize == MMU_PAGE_64K_AP); \ shift = mmu_psize_defs[psize].shift; \ - for (index = 0; va < __end; index++, va += (1 << shift)) { \ + for (index = 0; va < __end; index++, va += (1L << shift)) { \ if (!__split || __rpte_sub_valid(rpte, index)) do { \ #define pte_iterate_hashed_end() } while(0); } } while(0) -- cgit v1.2.3 From 0d9ea75443dc7e37843e656b8ebc947a6d16d618 Mon Sep 17 00:00:00 2001 From: Jon Tollefson Date: Wed, 23 Jul 2008 21:27:56 -0700 Subject: powerpc: support multiple hugepage sizes Instead of using the variable mmu_huge_psize to keep track of the huge page size we use an array of MMU_PAGE_* values. For each supported huge page size we need to know the hugepte_shift value and have a pgtable_cache. The hstate or an mmu_huge_psizes index is passed to functions so that they know which huge page size they should use. The hugepage sizes 16M and 64K are setup(if available on the hardware) so that they don't have to be set on the boot cmd line in order to use them. The number of 16G pages have to be specified at boot-time though (e.g. hugepagesz=16G hugepages=5). Signed-off-by: Jon Tollefson Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/kernel-parameters.txt | 10 +- arch/powerpc/mm/hash_utils_64.c | 9 +- arch/powerpc/mm/hugetlbpage.c | 274 +++++++++++++++++++++++------------- arch/powerpc/mm/init_64.c | 8 +- arch/powerpc/mm/tlb_64.c | 2 +- include/asm-powerpc/hugetlb.h | 5 +- include/asm-powerpc/mmu-hash64.h | 4 +- include/asm-powerpc/page_64.h | 1 + include/asm-powerpc/pgalloc-64.h | 4 +- 9 files changed, 199 insertions(+), 118 deletions(-) (limited to 'include') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 30278e9e5211..01a2992b5754 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -776,11 +776,11 @@ and is between 256 and 4096 characters. It is defined in the file hugepages= [HW,X86-32,IA-64] HugeTLB pages to allocate at boot. hugepagesz= [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages. - On x86 this option can be specified multiple times - interleaved with hugepages= to reserve huge pages - of different sizes. Valid pages sizes on x86-64 - are 2M (when the CPU supports "pse") and 1G (when the - CPU supports the "pdpe1gb" cpuinfo flag) + On x86-64 and powerpc, this option can be specified + multiple times interleaved with hugepages= to reserve + huge pages of different sizes. Valid pages sizes on + x86-64 are 2M (when the CPU supports "pse") and 1G + (when the CPU supports the "pdpe1gb" cpuinfo flag) Note that 1GB pages can only be allocated at boot time using hugepages= and not freed afterwards. default_hugepagesz= diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index ae4c717243a5..5ce5a4dcd008 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -103,7 +103,6 @@ int mmu_kernel_ssize = MMU_SEGSIZE_256M; int mmu_highuser_ssize = MMU_SEGSIZE_256M; u16 mmu_slb_size = 64; #ifdef CONFIG_HUGETLB_PAGE -int mmu_huge_psize = MMU_PAGE_16M; unsigned int HPAGE_SHIFT; #endif #ifdef CONFIG_PPC_64K_PAGES @@ -460,15 +459,15 @@ static void __init htab_init_page_sizes(void) /* Reserve 16G huge page memory sections for huge pages */ of_scan_flat_dt(htab_dt_scan_hugepage_blocks, NULL); -/* Init large page size. Currently, we pick 16M or 1M depending +/* Set default large page size. Currently, we pick 16M or 1M depending * on what is available */ if (mmu_psize_defs[MMU_PAGE_16M].shift) - set_huge_psize(MMU_PAGE_16M); + HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_16M].shift; /* With 4k/4level pagetables, we can't (for now) cope with a * huge page size < PMD_SIZE */ else if (mmu_psize_defs[MMU_PAGE_1M].shift) - set_huge_psize(MMU_PAGE_1M); + HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_1M].shift; #endif /* CONFIG_HUGETLB_PAGE */ } @@ -889,7 +888,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap) #ifdef CONFIG_HUGETLB_PAGE /* Handle hugepage regions */ - if (HPAGE_SHIFT && psize == mmu_huge_psize) { + if (HPAGE_SHIFT && mmu_huge_psizes[psize]) { DBG_LOW(" -> huge page !\n"); return hash_huge_page(mm, access, ea, vsid, local, trap); } diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 19b1a9cec6d5..fb42c4dd3217 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -37,15 +37,30 @@ static unsigned long gpage_freearray[MAX_NUMBER_GPAGES]; static unsigned nr_gpages; -unsigned int hugepte_shift; -#define PTRS_PER_HUGEPTE (1 << hugepte_shift) -#define HUGEPTE_TABLE_SIZE (sizeof(pte_t) << hugepte_shift) +/* Array of valid huge page sizes - non-zero value(hugepte_shift) is + * stored for the huge page sizes that are valid. + */ +unsigned int mmu_huge_psizes[MMU_PAGE_COUNT] = { }; /* initialize all to 0 */ + +#define hugepte_shift mmu_huge_psizes +#define PTRS_PER_HUGEPTE(psize) (1 << hugepte_shift[psize]) +#define HUGEPTE_TABLE_SIZE(psize) (sizeof(pte_t) << hugepte_shift[psize]) + +#define HUGEPD_SHIFT(psize) (mmu_psize_to_shift(psize) \ + + hugepte_shift[psize]) +#define HUGEPD_SIZE(psize) (1UL << HUGEPD_SHIFT(psize)) +#define HUGEPD_MASK(psize) (~(HUGEPD_SIZE(psize)-1)) -#define HUGEPD_SHIFT (HPAGE_SHIFT + hugepte_shift) -#define HUGEPD_SIZE (1UL << HUGEPD_SHIFT) -#define HUGEPD_MASK (~(HUGEPD_SIZE-1)) +/* Subtract one from array size because we don't need a cache for 4K since + * is not a huge page size */ +#define huge_pgtable_cache(psize) (pgtable_cache[HUGEPTE_CACHE_NUM \ + + psize-1]) +#define HUGEPTE_CACHE_NAME(psize) (huge_pgtable_cache_name[psize]) -#define huge_pgtable_cache (pgtable_cache[HUGEPTE_CACHE_NUM]) +static const char *huge_pgtable_cache_name[MMU_PAGE_COUNT] = { + "unused_4K", "hugepte_cache_64K", "unused_64K_AP", + "hugepte_cache_1M", "hugepte_cache_16M", "hugepte_cache_16G" +}; /* Flag to mark huge PD pointers. This means pmd_bad() and pud_bad() * will choke on pointers to hugepte tables, which is handy for @@ -56,24 +71,49 @@ typedef struct { unsigned long pd; } hugepd_t; #define hugepd_none(hpd) ((hpd).pd == 0) +static inline int shift_to_mmu_psize(unsigned int shift) +{ + switch (shift) { +#ifndef CONFIG_PPC_64K_PAGES + case PAGE_SHIFT_64K: + return MMU_PAGE_64K; +#endif + case PAGE_SHIFT_16M: + return MMU_PAGE_16M; + case PAGE_SHIFT_16G: + return MMU_PAGE_16G; + } + return -1; +} + +static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize) +{ + if (mmu_psize_defs[mmu_psize].shift) + return mmu_psize_defs[mmu_psize].shift; + BUG(); +} + static inline pte_t *hugepd_page(hugepd_t hpd) { BUG_ON(!(hpd.pd & HUGEPD_OK)); return (pte_t *)(hpd.pd & ~HUGEPD_OK); } -static inline pte_t *hugepte_offset(hugepd_t *hpdp, unsigned long addr) +static inline pte_t *hugepte_offset(hugepd_t *hpdp, unsigned long addr, + struct hstate *hstate) { - unsigned long idx = ((addr >> HPAGE_SHIFT) & (PTRS_PER_HUGEPTE-1)); + unsigned int shift = huge_page_shift(hstate); + int psize = shift_to_mmu_psize(shift); + unsigned long idx = ((addr >> shift) & (PTRS_PER_HUGEPTE(psize)-1)); pte_t *dir = hugepd_page(*hpdp); return dir + idx; } static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp, - unsigned long address) + unsigned long address, unsigned int psize) { - pte_t *new = kmem_cache_alloc(huge_pgtable_cache, + pte_t *new = kmem_cache_alloc(huge_pgtable_cache(psize), GFP_KERNEL|__GFP_REPEAT); if (! new) @@ -81,7 +121,7 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp, spin_lock(&mm->page_table_lock); if (!hugepd_none(*hpdp)) - kmem_cache_free(huge_pgtable_cache, new); + kmem_cache_free(huge_pgtable_cache(psize), new); else hpdp->pd = (unsigned long)new | HUGEPD_OK; spin_unlock(&mm->page_table_lock); @@ -90,21 +130,22 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp, /* Base page size affects how we walk hugetlb page tables */ #ifdef CONFIG_PPC_64K_PAGES -#define hpmd_offset(pud, addr) pmd_offset(pud, addr) -#define hpmd_alloc(mm, pud, addr) pmd_alloc(mm, pud, addr) +#define hpmd_offset(pud, addr, h) pmd_offset(pud, addr) +#define hpmd_alloc(mm, pud, addr, h) pmd_alloc(mm, pud, addr) #else static inline -pmd_t *hpmd_offset(pud_t *pud, unsigned long addr) +pmd_t *hpmd_offset(pud_t *pud, unsigned long addr, struct hstate *hstate) { - if (HPAGE_SHIFT == PAGE_SHIFT_64K) + if (huge_page_shift(hstate) == PAGE_SHIFT_64K) return pmd_offset(pud, addr); else return (pmd_t *) pud; } static inline -pmd_t *hpmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr) +pmd_t *hpmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr, + struct hstate *hstate) { - if (HPAGE_SHIFT == PAGE_SHIFT_64K) + if (huge_page_shift(hstate) == PAGE_SHIFT_64K) return pmd_alloc(mm, pud, addr); else return (pmd_t *) pud; @@ -128,8 +169,9 @@ void add_gpage(unsigned long addr, unsigned long page_size, } /* Moves the gigantic page addresses from the temporary list to the - * huge_boot_pages list. */ -int alloc_bootmem_huge_page(struct hstate *h) + * huge_boot_pages list. + */ +int alloc_bootmem_huge_page(struct hstate *hstate) { struct huge_bootmem_page *m; if (nr_gpages == 0) @@ -137,7 +179,7 @@ int alloc_bootmem_huge_page(struct hstate *h) m = phys_to_virt(gpage_freearray[--nr_gpages]); gpage_freearray[nr_gpages] = 0; list_add(&m->list, &huge_boot_pages); - m->hstate = h; + m->hstate = hstate; return 1; } @@ -149,17 +191,25 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr) pud_t *pu; pmd_t *pm; - BUG_ON(get_slice_psize(mm, addr) != mmu_huge_psize); + unsigned int psize; + unsigned int shift; + unsigned long sz; + struct hstate *hstate; + psize = get_slice_psize(mm, addr); + shift = mmu_psize_to_shift(psize); + sz = ((1UL) << shift); + hstate = size_to_hstate(sz); - addr &= HPAGE_MASK; + addr &= hstate->mask; pg = pgd_offset(mm, addr); if (!pgd_none(*pg)) { pu = pud_offset(pg, addr); if (!pud_none(*pu)) { - pm = hpmd_offset(pu, addr); + pm = hpmd_offset(pu, addr, hstate); if (!pmd_none(*pm)) - return hugepte_offset((hugepd_t *)pm, addr); + return hugepte_offset((hugepd_t *)pm, addr, + hstate); } } @@ -173,16 +223,20 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, pud_t *pu; pmd_t *pm; hugepd_t *hpdp = NULL; + struct hstate *hstate; + unsigned int psize; + hstate = size_to_hstate(sz); - BUG_ON(get_slice_psize(mm, addr) != mmu_huge_psize); + psize = get_slice_psize(mm, addr); + BUG_ON(!mmu_huge_psizes[psize]); - addr &= HPAGE_MASK; + addr &= hstate->mask; pg = pgd_offset(mm, addr); pu = pud_alloc(mm, pg, addr); if (pu) { - pm = hpmd_alloc(mm, pu, addr); + pm = hpmd_alloc(mm, pu, addr, hstate); if (pm) hpdp = (hugepd_t *)pm; } @@ -190,10 +244,10 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, if (! hpdp) return NULL; - if (hugepd_none(*hpdp) && __hugepte_alloc(mm, hpdp, addr)) + if (hugepd_none(*hpdp) && __hugepte_alloc(mm, hpdp, addr, psize)) return NULL; - return hugepte_offset(hpdp, addr); + return hugepte_offset(hpdp, addr, hstate); } int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) @@ -201,19 +255,22 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) return 0; } -static void free_hugepte_range(struct mmu_gather *tlb, hugepd_t *hpdp) +static void free_hugepte_range(struct mmu_gather *tlb, hugepd_t *hpdp, + unsigned int psize) { pte_t *hugepte = hugepd_page(*hpdp); hpdp->pd = 0; tlb->need_flush = 1; - pgtable_free_tlb(tlb, pgtable_free_cache(hugepte, HUGEPTE_CACHE_NUM, + pgtable_free_tlb(tlb, pgtable_free_cache(hugepte, + HUGEPTE_CACHE_NUM+psize-1, PGF_CACHENUM_MASK)); } static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud, unsigned long addr, unsigned long end, - unsigned long floor, unsigned long ceiling) + unsigned long floor, unsigned long ceiling, + unsigned int psize) { pmd_t *pmd; unsigned long next; @@ -225,7 +282,7 @@ static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud, next = pmd_addr_end(addr, end); if (pmd_none(*pmd)) continue; - free_hugepte_range(tlb, (hugepd_t *)pmd); + free_hugepte_range(tlb, (hugepd_t *)pmd, psize); } while (pmd++, addr = next, addr != end); start &= PUD_MASK; @@ -251,6 +308,9 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, pud_t *pud; unsigned long next; unsigned long start; + unsigned int shift; + unsigned int psize = get_slice_psize(tlb->mm, addr); + shift = mmu_psize_to_shift(psize); start = addr; pud = pud_offset(pgd, addr); @@ -259,16 +319,18 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, #ifdef CONFIG_PPC_64K_PAGES if (pud_none_or_clear_bad(pud)) continue; - hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling); + hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling, + psize); #else - if (HPAGE_SHIFT == PAGE_SHIFT_64K) { + if (shift == PAGE_SHIFT_64K) { if (pud_none_or_clear_bad(pud)) continue; - hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling); + hugetlb_free_pmd_range(tlb, pud, addr, next, floor, + ceiling, psize); } else { if (pud_none(*pud)) continue; - free_hugepte_range(tlb, (hugepd_t *)pud); + free_hugepte_range(tlb, (hugepd_t *)pud, psize); } #endif } while (pud++, addr = next, addr != end); @@ -336,27 +398,29 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, * now has no other vmas using it, so can be freed, we don't * bother to round floor or end up - the tests don't need that. */ + unsigned int psize = get_slice_psize(tlb->mm, addr); - addr &= HUGEPD_MASK; + addr &= HUGEPD_MASK(psize); if (addr < floor) { - addr += HUGEPD_SIZE; + addr += HUGEPD_SIZE(psize); if (!addr) return; } if (ceiling) { - ceiling &= HUGEPD_MASK; + ceiling &= HUGEPD_MASK(psize); if (!ceiling) return; } if (end - 1 > ceiling - 1) - end -= HUGEPD_SIZE; + end -= HUGEPD_SIZE(psize); if (addr > end - 1) return; start = addr; pgd = pgd_offset(tlb->mm, addr); do { - BUG_ON(get_slice_psize(tlb->mm, addr) != mmu_huge_psize); + psize = get_slice_psize(tlb->mm, addr); + BUG_ON(!mmu_huge_psizes[psize]); next = pgd_addr_end(addr, end); if (pgd_none_or_clear_bad(pgd)) continue; @@ -373,7 +437,11 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, * necessary anymore if we make hpte_need_flush() get the * page size from the slices */ - pte_update(mm, addr & HPAGE_MASK, ptep, ~0UL, 1); + unsigned int psize = get_slice_psize(mm, addr); + unsigned int shift = mmu_psize_to_shift(psize); + unsigned long sz = ((1UL) << shift); + struct hstate *hstate = size_to_hstate(sz); + pte_update(mm, addr & hstate->mask, ptep, ~0UL, 1); } *ptep = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS); } @@ -390,14 +458,19 @@ follow_huge_addr(struct mm_struct *mm, unsigned long address, int write) { pte_t *ptep; struct page *page; + unsigned int mmu_psize = get_slice_psize(mm, address); - if (get_slice_psize(mm, address) != mmu_huge_psize) + /* Verify it is a huge page else bail. */ + if (!mmu_huge_psizes[mmu_psize]) return ERR_PTR(-EINVAL); ptep = huge_pte_offset(mm, address); page = pte_page(*ptep); - if (page) - page += (address % HPAGE_SIZE) / PAGE_SIZE; + if (page) { + unsigned int shift = mmu_psize_to_shift(mmu_psize); + unsigned long sz = ((1UL) << shift); + page += (address % sz) / PAGE_SIZE; + } return page; } @@ -425,15 +498,16 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) { - return slice_get_unmapped_area(addr, len, flags, - mmu_huge_psize, 1, 0); + struct hstate *hstate = hstate_file(file); + int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate)); + return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1, 0); } /* * Called by asm hashtable.S for doing lazy icache flush */ static unsigned int hash_huge_page_do_lazy_icache(unsigned long rflags, - pte_t pte, int trap) + pte_t pte, int trap, unsigned long sz) { struct page *page; int i; @@ -446,7 +520,7 @@ static unsigned int hash_huge_page_do_lazy_icache(unsigned long rflags, /* page is dirty */ if (!test_bit(PG_arch_1, &page->flags) && !PageReserved(page)) { if (trap == 0x400) { - for (i = 0; i < (HPAGE_SIZE / PAGE_SIZE); i++) + for (i = 0; i < (sz / PAGE_SIZE); i++) __flush_dcache_icache(page_address(page+i)); set_bit(PG_arch_1, &page->flags); } else { @@ -462,11 +536,16 @@ int hash_huge_page(struct mm_struct *mm, unsigned long access, { pte_t *ptep; unsigned long old_pte, new_pte; - unsigned long va, rflags, pa; + unsigned long va, rflags, pa, sz; long slot; int err = 1; int ssize = user_segment_size(ea); + unsigned int mmu_psize; + int shift; + mmu_psize = get_slice_psize(mm, ea); + if (!mmu_huge_psizes[mmu_psize]) + goto out; ptep = huge_pte_offset(mm, ea); /* Search the Linux page table for a match with va */ @@ -509,30 +588,32 @@ int hash_huge_page(struct mm_struct *mm, unsigned long access, rflags = 0x2 | (!(new_pte & _PAGE_RW)); /* _PAGE_EXEC -> HW_NO_EXEC since it's inverted */ rflags |= ((new_pte & _PAGE_EXEC) ? 0 : HPTE_R_N); + shift = mmu_psize_to_shift(mmu_psize); + sz = ((1UL) << shift); if (!cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) /* No CPU has hugepages but lacks no execute, so we * don't need to worry about that case */ rflags = hash_huge_page_do_lazy_icache(rflags, __pte(old_pte), - trap); + trap, sz); /* Check if pte already has an hpte (case 2) */ if (unlikely(old_pte & _PAGE_HASHPTE)) { /* There MIGHT be an HPTE for this pte */ unsigned long hash, slot; - hash = hpt_hash(va, HPAGE_SHIFT, ssize); + hash = hpt_hash(va, shift, ssize); if (old_pte & _PAGE_F_SECOND) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += (old_pte & _PAGE_F_GIX) >> 12; - if (ppc_md.hpte_updatepp(slot, rflags, va, mmu_huge_psize, + if (ppc_md.hpte_updatepp(slot, rflags, va, mmu_psize, ssize, local) == -1) old_pte &= ~_PAGE_HPTEFLAGS; } if (likely(!(old_pte & _PAGE_HASHPTE))) { - unsigned long hash = hpt_hash(va, HPAGE_SHIFT, ssize); + unsigned long hash = hpt_hash(va, shift, ssize); unsigned long hpte_group; pa = pte_pfn(__pte(old_pte)) << PAGE_SHIFT; @@ -553,7 +634,7 @@ repeat: /* Insert into the hash table, primary slot */ slot = ppc_md.hpte_insert(hpte_group, va, pa, rflags, 0, - mmu_huge_psize, ssize); + mmu_psize, ssize); /* Primary is full, try the secondary */ if (unlikely(slot == -1)) { @@ -561,7 +642,7 @@ repeat: HPTES_PER_GROUP) & ~0x7UL; slot = ppc_md.hpte_insert(hpte_group, va, pa, rflags, HPTE_V_SECONDARY, - mmu_huge_psize, ssize); + mmu_psize, ssize); if (slot == -1) { if (mftb() & 0x1) hpte_group = ((hash & htab_hash_mask) * @@ -598,66 +679,50 @@ void set_huge_psize(int psize) (mmu_psize_defs[psize].shift > MIN_HUGEPTE_SHIFT || mmu_psize_defs[psize].shift == PAGE_SHIFT_64K || mmu_psize_defs[psize].shift == PAGE_SHIFT_16G)) { - /* Return if huge page size is the same as the - * base page size. */ - if (mmu_psize_defs[psize].shift == PAGE_SHIFT) + /* Return if huge page size has already been setup or is the + * same as the base page size. */ + if (mmu_huge_psizes[psize] || + mmu_psize_defs[psize].shift == PAGE_SHIFT) return; + hugetlb_add_hstate(mmu_psize_defs[psize].shift - PAGE_SHIFT); - HPAGE_SHIFT = mmu_psize_defs[psize].shift; - mmu_huge_psize = psize; - - switch (HPAGE_SHIFT) { + switch (mmu_psize_defs[psize].shift) { case PAGE_SHIFT_64K: /* We only allow 64k hpages with 4k base page, * which was checked above, and always put them * at the PMD */ - hugepte_shift = PMD_SHIFT; + hugepte_shift[psize] = PMD_SHIFT; break; case PAGE_SHIFT_16M: /* 16M pages can be at two different levels * of pagestables based on base page size */ if (PAGE_SHIFT == PAGE_SHIFT_64K) - hugepte_shift = PMD_SHIFT; + hugepte_shift[psize] = PMD_SHIFT; else /* 4k base page */ - hugepte_shift = PUD_SHIFT; + hugepte_shift[psize] = PUD_SHIFT; break; case PAGE_SHIFT_16G: /* 16G pages are always at PGD level */ - hugepte_shift = PGDIR_SHIFT; + hugepte_shift[psize] = PGDIR_SHIFT; break; } - hugepte_shift -= HPAGE_SHIFT; + hugepte_shift[psize] -= mmu_psize_defs[psize].shift; } else - HPAGE_SHIFT = 0; + hugepte_shift[psize] = 0; } static int __init hugepage_setup_sz(char *str) { unsigned long long size; - int mmu_psize = -1; + int mmu_psize; int shift; size = memparse(str, &str); shift = __ffs(size); - switch (shift) { -#ifndef CONFIG_PPC_64K_PAGES - case PAGE_SHIFT_64K: - mmu_psize = MMU_PAGE_64K; - break; -#endif - case PAGE_SHIFT_16M: - mmu_psize = MMU_PAGE_16M; - break; - case PAGE_SHIFT_16G: - mmu_psize = MMU_PAGE_16G; - break; - } - - if (mmu_psize >= 0 && mmu_psize_defs[mmu_psize].shift) { + mmu_psize = shift_to_mmu_psize(shift); + if (mmu_psize >= 0 && mmu_psize_defs[mmu_psize].shift) set_huge_psize(mmu_psize); - hugetlb_add_hstate(shift - PAGE_SHIFT); - } else printk(KERN_WARNING "Invalid huge page size specified(%llu)\n", size); @@ -672,16 +737,31 @@ static void zero_ctor(struct kmem_cache *cache, void *addr) static int __init hugetlbpage_init(void) { + unsigned int psize; + if (!cpu_has_feature(CPU_FTR_16M_PAGE)) return -ENODEV; - - huge_pgtable_cache = kmem_cache_create("hugepte_cache", - HUGEPTE_TABLE_SIZE, - HUGEPTE_TABLE_SIZE, - 0, - zero_ctor); - if (! huge_pgtable_cache) - panic("hugetlbpage_init(): could not create hugepte cache\n"); + /* Add supported huge page sizes. Need to change HUGE_MAX_HSTATE + * and adjust PTE_NONCACHE_NUM if the number of supported huge page + * sizes changes. + */ + set_huge_psize(MMU_PAGE_16M); + set_huge_psize(MMU_PAGE_64K); + set_huge_psize(MMU_PAGE_16G); + + for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) { + if (mmu_huge_psizes[psize]) { + huge_pgtable_cache(psize) = kmem_cache_create( + HUGEPTE_CACHE_NAME(psize), + HUGEPTE_TABLE_SIZE(psize), + HUGEPTE_TABLE_SIZE(psize), + 0, + zero_ctor); + if (!huge_pgtable_cache(psize)) + panic("hugetlbpage_init(): could not create %s"\ + "\n", HUGEPTE_CACHE_NAME(psize)); + } + } return 0; } diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 6ef63caca682..a41bc5aa2043 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -153,10 +153,10 @@ static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = { }; #ifdef CONFIG_HUGETLB_PAGE -/* Hugepages need one extra cache, initialized in hugetlbpage.c. We - * can't put into the tables above, because HPAGE_SHIFT is not compile - * time constant. */ -struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)+1]; +/* Hugepages need an extra cache per hugepagesize, initialized in + * hugetlbpage.c. We can't put into the tables above, because HPAGE_SHIFT + * is not compile time constant. */ +struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)+MMU_PAGE_COUNT]; #else struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)]; #endif diff --git a/arch/powerpc/mm/tlb_64.c b/arch/powerpc/mm/tlb_64.c index a01b5c608ff9..409fcc7b63ce 100644 --- a/arch/powerpc/mm/tlb_64.c +++ b/arch/powerpc/mm/tlb_64.c @@ -147,7 +147,7 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr, */ if (huge) { #ifdef CONFIG_HUGETLB_PAGE - psize = mmu_huge_psize; + psize = get_slice_psize(mm, addr);; #else BUG(); psize = pte_pagesize_index(mm, addr, pte); /* shutup gcc */ diff --git a/include/asm-powerpc/hugetlb.h b/include/asm-powerpc/hugetlb.h index ca37c4af27b1..26f0d0ab27a5 100644 --- a/include/asm-powerpc/hugetlb.h +++ b/include/asm-powerpc/hugetlb.h @@ -24,9 +24,10 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, static inline int prepare_hugepage_range(struct file *file, unsigned long addr, unsigned long len) { - if (len & ~HPAGE_MASK) + struct hstate *h = hstate_file(file); + if (len & ~huge_page_mask(h)) return -EINVAL; - if (addr & ~HPAGE_MASK) + if (addr & ~huge_page_mask(h)) return -EINVAL; return 0; } diff --git a/include/asm-powerpc/mmu-hash64.h b/include/asm-powerpc/mmu-hash64.h index b61181aa7746..19c7a9403490 100644 --- a/include/asm-powerpc/mmu-hash64.h +++ b/include/asm-powerpc/mmu-hash64.h @@ -194,9 +194,9 @@ extern int mmu_ci_restrictions; #ifdef CONFIG_HUGETLB_PAGE /* - * The page size index of the huge pages for use by hugetlbfs + * The page size indexes of the huge pages for use by hugetlbfs */ -extern int mmu_huge_psize; +extern unsigned int mmu_huge_psizes[MMU_PAGE_COUNT]; #endif /* CONFIG_HUGETLB_PAGE */ diff --git a/include/asm-powerpc/page_64.h b/include/asm-powerpc/page_64.h index 02fd80710e9d..043bfdfe4f73 100644 --- a/include/asm-powerpc/page_64.h +++ b/include/asm-powerpc/page_64.h @@ -90,6 +90,7 @@ extern unsigned int HPAGE_SHIFT; #define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) +#define HUGE_MAX_HSTATE 3 #endif /* __ASSEMBLY__ */ diff --git a/include/asm-powerpc/pgalloc-64.h b/include/asm-powerpc/pgalloc-64.h index 68980990f62a..812a1d8f35cb 100644 --- a/include/asm-powerpc/pgalloc-64.h +++ b/include/asm-powerpc/pgalloc-64.h @@ -22,7 +22,7 @@ extern struct kmem_cache *pgtable_cache[]; #define PUD_CACHE_NUM 1 #define PMD_CACHE_NUM 1 #define HUGEPTE_CACHE_NUM 2 -#define PTE_NONCACHE_NUM 3 /* from GFP rather than kmem_cache */ +#define PTE_NONCACHE_NUM 7 /* from GFP rather than kmem_cache */ static inline pgd_t *pgd_alloc(struct mm_struct *mm) { @@ -119,7 +119,7 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) __free_page(ptepage); } -#define PGF_CACHENUM_MASK 0x3 +#define PGF_CACHENUM_MASK 0x7 typedef struct pgtable_free { unsigned long val; -- cgit v1.2.3 From 223e8dc9249c9e15f6c8b638d73fcad78ccb0a88 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 23 Jul 2008 21:28:00 -0700 Subject: bootmem: reorder code to match new bootmem structure This only reorders functions so that further patches will be easier to read. No code changed. Signed-off-by: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bootmem.h | 86 ++++++------ mm/bootmem.c | 356 ++++++++++++++++++++++++------------------------ 2 files changed, 222 insertions(+), 220 deletions(-) (limited to 'include') diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index f352c5f125b4..5000fd70b04f 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -41,36 +41,62 @@ typedef struct bootmem_data { extern bootmem_data_t bootmem_node_data[]; extern unsigned long bootmem_bootmap_pages(unsigned long); + +extern unsigned long init_bootmem_node(pg_data_t *pgdat, + unsigned long freepfn, + unsigned long startpfn, + unsigned long endpfn); extern unsigned long init_bootmem(unsigned long addr, unsigned long memend); + +extern unsigned long free_all_bootmem_node(pg_data_t *pgdat); +extern unsigned long free_all_bootmem(void); + +extern void free_bootmem_node(pg_data_t *pgdat, + unsigned long addr, + unsigned long size); extern void free_bootmem(unsigned long addr, unsigned long size); -extern void *__alloc_bootmem(unsigned long size, + +/* + * Flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE, + * the architecture-specific code should honor this). + * + * If flags is 0, then the return value is always 0 (success). If + * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the + * memory already was reserved. + */ +#define BOOTMEM_DEFAULT 0 +#define BOOTMEM_EXCLUSIVE (1<<0) + +extern int reserve_bootmem_node(pg_data_t *pgdat, + unsigned long physaddr, + unsigned long size, + int flags); +#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE +extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags); +#endif + +extern void *__alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal); -extern void *__alloc_bootmem_nopanic(unsigned long size, +extern void *__alloc_bootmem(unsigned long size, unsigned long align, unsigned long goal); extern void *__alloc_bootmem_low(unsigned long size, unsigned long align, unsigned long goal); +extern void *__alloc_bootmem_node(pg_data_t *pgdat, + unsigned long size, + unsigned long align, + unsigned long goal); +extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat, + unsigned long size, + unsigned long align, + unsigned long goal); extern void *__alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal); - -/* - * flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE, - * the architecture-specific code should honor this) - */ -#define BOOTMEM_DEFAULT 0 -#define BOOTMEM_EXCLUSIVE (1<<0) - #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE -/* - * If flags is 0, then the return value is always 0 (success). If - * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the - * memory already was reserved. - */ -extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags); #define alloc_bootmem(x) \ __alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low(x) \ @@ -83,38 +109,16 @@ extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags); extern int reserve_bootmem_generic(unsigned long addr, unsigned long size, int flags); -extern unsigned long free_all_bootmem(void); -extern unsigned long free_all_bootmem_node(pg_data_t *pgdat); -extern void *__alloc_bootmem_node(pg_data_t *pgdat, - unsigned long size, - unsigned long align, - unsigned long goal); -extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat, - unsigned long size, - unsigned long align, - unsigned long goal); -extern unsigned long init_bootmem_node(pg_data_t *pgdat, - unsigned long freepfn, - unsigned long startpfn, - unsigned long endpfn); -extern int reserve_bootmem_node(pg_data_t *pgdat, - unsigned long physaddr, - unsigned long size, - int flags); -extern void free_bootmem_node(pg_data_t *pgdat, - unsigned long addr, - unsigned long size); -extern void *alloc_bootmem_section(unsigned long size, - unsigned long section_nr); -#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE #define alloc_bootmem_node(pgdat, x) \ __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_pages_node(pgdat, x) \ __alloc_bootmem_node(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low_pages_node(pgdat, x) \ __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0) -#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ + +extern void *alloc_bootmem_section(unsigned long size, + unsigned long section_nr); #ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP extern void *alloc_remap(int nid, unsigned long size); diff --git a/mm/bootmem.c b/mm/bootmem.c index 9ac972535fff..24eacf52c50e 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -38,6 +38,19 @@ unsigned long saved_max_pfn; bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata; +/* + * Given an initialised bdata, it returns the size of the boot bitmap + */ +static unsigned long __init get_mapsize(bootmem_data_t *bdata) +{ + unsigned long mapsize; + unsigned long start = PFN_DOWN(bdata->node_boot_start); + unsigned long end = bdata->node_low_pfn; + + mapsize = ((end - start) + 7) / 8; + return ALIGN(mapsize, sizeof(long)); +} + /* return the number of _pages_ that will be allocated for the boot bitmap */ unsigned long __init bootmem_bootmap_pages(unsigned long pages) { @@ -71,19 +84,6 @@ static void __init link_bootmem(bootmem_data_t *bdata) list_add_tail(&bdata->list, &bdata_list); } -/* - * Given an initialised bdata, it returns the size of the boot bitmap - */ -static unsigned long __init get_mapsize(bootmem_data_t *bdata) -{ - unsigned long mapsize; - unsigned long start = PFN_DOWN(bdata->node_boot_start); - unsigned long end = bdata->node_low_pfn; - - mapsize = ((end - start) + 7) / 8; - return ALIGN(mapsize, sizeof(long)); -} - /* * Called once to set up the allocator itself. */ @@ -108,6 +108,146 @@ static unsigned long __init init_bootmem_core(bootmem_data_t *bdata, return mapsize; } +unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn, + unsigned long startpfn, unsigned long endpfn) +{ + return init_bootmem_core(pgdat->bdata, freepfn, startpfn, endpfn); +} + +unsigned long __init init_bootmem(unsigned long start, unsigned long pages) +{ + max_low_pfn = pages; + min_low_pfn = start; + return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages); +} + +static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) +{ + struct page *page; + unsigned long pfn; + unsigned long i, count; + unsigned long idx; + unsigned long *map; + int gofast = 0; + + BUG_ON(!bdata->node_bootmem_map); + + count = 0; + /* first extant page of the node */ + pfn = PFN_DOWN(bdata->node_boot_start); + idx = bdata->node_low_pfn - pfn; + map = bdata->node_bootmem_map; + /* + * Check if we are aligned to BITS_PER_LONG pages. If so, we might + * be able to free page orders of that size at once. + */ + if (!(pfn & (BITS_PER_LONG-1))) + gofast = 1; + + for (i = 0; i < idx; ) { + unsigned long v = ~map[i / BITS_PER_LONG]; + + if (gofast && v == ~0UL) { + int order; + + page = pfn_to_page(pfn); + count += BITS_PER_LONG; + order = ffs(BITS_PER_LONG) - 1; + __free_pages_bootmem(page, order); + i += BITS_PER_LONG; + page += BITS_PER_LONG; + } else if (v) { + unsigned long m; + + page = pfn_to_page(pfn); + for (m = 1; m && i < idx; m<<=1, page++, i++) { + if (v & m) { + count++; + __free_pages_bootmem(page, 0); + } + } + } else { + i += BITS_PER_LONG; + } + pfn += BITS_PER_LONG; + } + + /* + * Now free the allocator bitmap itself, it's not + * needed anymore: + */ + page = virt_to_page(bdata->node_bootmem_map); + idx = (get_mapsize(bdata) + PAGE_SIZE-1) >> PAGE_SHIFT; + for (i = 0; i < idx; i++, page++) + __free_pages_bootmem(page, 0); + count += i; + bdata->node_bootmem_map = NULL; + + return count; +} + +unsigned long __init free_all_bootmem_node(pg_data_t *pgdat) +{ + register_page_bootmem_info_node(pgdat); + return free_all_bootmem_core(pgdat->bdata); +} + +unsigned long __init free_all_bootmem(void) +{ + return free_all_bootmem_core(NODE_DATA(0)->bdata); +} + +static void __init free_bootmem_core(bootmem_data_t *bdata, unsigned long addr, + unsigned long size) +{ + unsigned long sidx, eidx; + unsigned long i; + + BUG_ON(!size); + + /* out range */ + if (addr + size < bdata->node_boot_start || + PFN_DOWN(addr) > bdata->node_low_pfn) + return; + /* + * round down end of usable mem, partially free pages are + * considered reserved. + */ + + if (addr >= bdata->node_boot_start && addr < bdata->last_success) + bdata->last_success = addr; + + /* + * Round up to index to the range. + */ + if (PFN_UP(addr) > PFN_DOWN(bdata->node_boot_start)) + sidx = PFN_UP(addr) - PFN_DOWN(bdata->node_boot_start); + else + sidx = 0; + + eidx = PFN_DOWN(addr + size - bdata->node_boot_start); + if (eidx > bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start)) + eidx = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start); + + for (i = sidx; i < eidx; i++) { + if (unlikely(!test_and_clear_bit(i, bdata->node_bootmem_map))) + BUG(); + } +} + +void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, + unsigned long size) +{ + free_bootmem_core(pgdat->bdata, physaddr, size); +} + +void __init free_bootmem(unsigned long addr, unsigned long size) +{ + bootmem_data_t *bdata; + list_for_each_entry(bdata, &bdata_list, list) + free_bootmem_core(bdata, addr, size); +} + /* * Marks a particular physical memory range as unallocatable. Usable RAM * might be used for boot-time allocations - or it might get added @@ -183,43 +323,36 @@ static void __init reserve_bootmem_core(bootmem_data_t *bdata, } } -static void __init free_bootmem_core(bootmem_data_t *bdata, unsigned long addr, - unsigned long size) +int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, + unsigned long size, int flags) { - unsigned long sidx, eidx; - unsigned long i; - - BUG_ON(!size); - - /* out range */ - if (addr + size < bdata->node_boot_start || - PFN_DOWN(addr) > bdata->node_low_pfn) - return; - /* - * round down end of usable mem, partially free pages are - * considered reserved. - */ - - if (addr >= bdata->node_boot_start && addr < bdata->last_success) - bdata->last_success = addr; + int ret; - /* - * Round up to index to the range. - */ - if (PFN_UP(addr) > PFN_DOWN(bdata->node_boot_start)) - sidx = PFN_UP(addr) - PFN_DOWN(bdata->node_boot_start); - else - sidx = 0; + ret = can_reserve_bootmem_core(pgdat->bdata, physaddr, size, flags); + if (ret < 0) + return -ENOMEM; + reserve_bootmem_core(pgdat->bdata, physaddr, size, flags); + return 0; +} - eidx = PFN_DOWN(addr + size - bdata->node_boot_start); - if (eidx > bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start)) - eidx = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start); +#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE +int __init reserve_bootmem(unsigned long addr, unsigned long size, + int flags) +{ + bootmem_data_t *bdata; + int ret; - for (i = sidx; i < eidx; i++) { - if (unlikely(!test_and_clear_bit(i, bdata->node_bootmem_map))) - BUG(); + list_for_each_entry(bdata, &bdata_list, list) { + ret = can_reserve_bootmem_core(bdata, addr, size, flags); + if (ret < 0) + return ret; } + list_for_each_entry(bdata, &bdata_list, list) + reserve_bootmem_core(bdata, addr, size, flags); + + return 0; } +#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ /* * We 'merge' subsequent allocations to save space. We might 'lose' @@ -371,140 +504,6 @@ found: return ret; } -static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) -{ - struct page *page; - unsigned long pfn; - unsigned long i, count; - unsigned long idx; - unsigned long *map; - int gofast = 0; - - BUG_ON(!bdata->node_bootmem_map); - - count = 0; - /* first extant page of the node */ - pfn = PFN_DOWN(bdata->node_boot_start); - idx = bdata->node_low_pfn - pfn; - map = bdata->node_bootmem_map; - /* - * Check if we are aligned to BITS_PER_LONG pages. If so, we might - * be able to free page orders of that size at once. - */ - if (!(pfn & (BITS_PER_LONG-1))) - gofast = 1; - - for (i = 0; i < idx; ) { - unsigned long v = ~map[i / BITS_PER_LONG]; - - if (gofast && v == ~0UL) { - int order; - - page = pfn_to_page(pfn); - count += BITS_PER_LONG; - order = ffs(BITS_PER_LONG) - 1; - __free_pages_bootmem(page, order); - i += BITS_PER_LONG; - page += BITS_PER_LONG; - } else if (v) { - unsigned long m; - - page = pfn_to_page(pfn); - for (m = 1; m && i < idx; m<<=1, page++, i++) { - if (v & m) { - count++; - __free_pages_bootmem(page, 0); - } - } - } else { - i += BITS_PER_LONG; - } - pfn += BITS_PER_LONG; - } - - /* - * Now free the allocator bitmap itself, it's not - * needed anymore: - */ - page = virt_to_page(bdata->node_bootmem_map); - idx = (get_mapsize(bdata) + PAGE_SIZE-1) >> PAGE_SHIFT; - for (i = 0; i < idx; i++, page++) - __free_pages_bootmem(page, 0); - count += i; - bdata->node_bootmem_map = NULL; - - return count; -} - -unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn, - unsigned long startpfn, unsigned long endpfn) -{ - return init_bootmem_core(pgdat->bdata, freepfn, startpfn, endpfn); -} - -int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, - unsigned long size, int flags) -{ - int ret; - - ret = can_reserve_bootmem_core(pgdat->bdata, physaddr, size, flags); - if (ret < 0) - return -ENOMEM; - reserve_bootmem_core(pgdat->bdata, physaddr, size, flags); - - return 0; -} - -void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, - unsigned long size) -{ - free_bootmem_core(pgdat->bdata, physaddr, size); -} - -unsigned long __init free_all_bootmem_node(pg_data_t *pgdat) -{ - register_page_bootmem_info_node(pgdat); - return free_all_bootmem_core(pgdat->bdata); -} - -unsigned long __init init_bootmem(unsigned long start, unsigned long pages) -{ - max_low_pfn = pages; - min_low_pfn = start; - return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages); -} - -#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE -int __init reserve_bootmem(unsigned long addr, unsigned long size, - int flags) -{ - bootmem_data_t *bdata; - int ret; - - list_for_each_entry(bdata, &bdata_list, list) { - ret = can_reserve_bootmem_core(bdata, addr, size, flags); - if (ret < 0) - return ret; - } - list_for_each_entry(bdata, &bdata_list, list) - reserve_bootmem_core(bdata, addr, size, flags); - - return 0; -} -#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ - -void __init free_bootmem(unsigned long addr, unsigned long size) -{ - bootmem_data_t *bdata; - list_for_each_entry(bdata, &bdata_list, list) - free_bootmem_core(bdata, addr, size); -} - -unsigned long __init free_all_bootmem(void) -{ - return free_all_bootmem_core(NODE_DATA(0)->bdata); -} - void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal) { @@ -534,7 +533,6 @@ void * __init __alloc_bootmem(unsigned long size, unsigned long align, return NULL; } - void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal) { -- cgit v1.2.3 From 5f2809e69c7128f86316048221cf45146f69a4a0 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 23 Jul 2008 21:28:05 -0700 Subject: bootmem: clean up alloc_bootmem_core alloc_bootmem_core has become quite nasty to read over time. This is a clean rewrite that keeps the semantics. bdata->last_pos has been dropped. bdata->last_success has been renamed to hint_idx and it is now an index relative to the node's range. Since further block searching might start at this index, it is now set to the end of a succeeded allocation rather than its beginning. bdata->last_offset has been renamed to last_end_off to be more clear that it represents the ending address of the last allocation relative to the node. [y-goto@jp.fujitsu.com: fix new alloc_bootmem_core()] Signed-off-by: Johannes Weiner Signed-off-by: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bootmem.h | 6 +- mm/bootmem.c | 212 +++++++++++++++++------------------------------- 2 files changed, 78 insertions(+), 140 deletions(-) (limited to 'include') diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 5000fd70b04f..90921d10ffa2 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -31,10 +31,8 @@ typedef struct bootmem_data { unsigned long node_boot_start; unsigned long node_low_pfn; void *node_bootmem_map; - unsigned long last_offset; - unsigned long last_pos; - unsigned long last_success; /* Previous allocation point. To speed - * up searching */ + unsigned long last_end_off; + unsigned long hint_idx; struct list_head list; } bootmem_data_t; diff --git a/mm/bootmem.c b/mm/bootmem.c index 300d126ec533..94ea612deccf 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -242,8 +242,9 @@ static void __init free_bootmem_core(bootmem_data_t *bdata, unsigned long addr, * considered reserved. */ - if (addr >= bdata->node_boot_start && addr < bdata->last_success) - bdata->last_success = addr; + if (addr >= bdata->node_boot_start && + PFN_DOWN(addr - bdata->node_boot_start) < bdata->hint_idx) + bdata->hint_idx = PFN_DOWN(addr - bdata->node_boot_start); /* * Round up to index to the range. @@ -431,36 +432,16 @@ int __init reserve_bootmem(unsigned long addr, unsigned long size, } #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ -/* - * We 'merge' subsequent allocations to save space. We might 'lose' - * some fraction of a page if allocations cannot be satisfied due to - * size constraints on boxes where there is physical RAM space - * fragmentation - in these cases (mostly large memory boxes) this - * is not a problem. - * - * On low memory boxes we get it right in 100% of the cases. - * - * alignment has to be a power of 2 value. - * - * NOTE: This function is _not_ reentrant. - */ -static void * __init -alloc_bootmem_core(struct bootmem_data *bdata, unsigned long size, - unsigned long align, unsigned long goal, unsigned long limit) +static void * __init alloc_bootmem_core(struct bootmem_data *bdata, + unsigned long size, unsigned long align, + unsigned long goal, unsigned long limit) { - unsigned long areasize, preferred; - unsigned long i, start = 0, incr, eidx, end_pfn; - void *ret; - unsigned long node_boot_start; - void *node_bootmem_map; - - if (!size) { - printk("alloc_bootmem_core(): zero-sized request\n"); - BUG(); - } - BUG_ON(align & (align-1)); + unsigned long min, max, start, sidx, midx, step; + + BUG_ON(!size); + BUG_ON(align & (align - 1)); + BUG_ON(limit && goal + size > limit); - /* on nodes without memory - bootmem_map is NULL */ if (!bdata->node_bootmem_map) return NULL; @@ -468,126 +449,85 @@ alloc_bootmem_core(struct bootmem_data *bdata, unsigned long size, bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT, align, goal, limit); - /* bdata->node_boot_start is supposed to be (12+6)bits alignment on x86_64 ? */ - node_boot_start = bdata->node_boot_start; - node_bootmem_map = bdata->node_bootmem_map; - if (align) { - node_boot_start = ALIGN(bdata->node_boot_start, align); - if (node_boot_start > bdata->node_boot_start) - node_bootmem_map = (unsigned long *)bdata->node_bootmem_map + - PFN_DOWN(node_boot_start - bdata->node_boot_start)/BITS_PER_LONG; - } + min = PFN_DOWN(bdata->node_boot_start); + max = bdata->node_low_pfn; - if (limit && node_boot_start >= limit) + goal >>= PAGE_SHIFT; + limit >>= PAGE_SHIFT; + + if (limit && max > limit) + max = limit; + if (max <= min) return NULL; - end_pfn = bdata->node_low_pfn; - limit = PFN_DOWN(limit); - if (limit && end_pfn > limit) - end_pfn = limit; + step = max(align >> PAGE_SHIFT, 1UL); - eidx = end_pfn - PFN_DOWN(node_boot_start); + if (goal && min < goal && goal < max) + start = ALIGN(goal, step); + else + start = ALIGN(min, step); - /* - * We try to allocate bootmem pages above 'goal' - * first, then we try to allocate lower pages. - */ - preferred = 0; - if (goal && PFN_DOWN(goal) < end_pfn) { - if (goal > node_boot_start) - preferred = goal - node_boot_start; - - if (bdata->last_success > node_boot_start && - bdata->last_success - node_boot_start >= preferred) - if (!limit || (limit && limit > bdata->last_success)) - preferred = bdata->last_success - node_boot_start; - } + sidx = start - PFN_DOWN(bdata->node_boot_start); + midx = max - PFN_DOWN(bdata->node_boot_start); - preferred = PFN_DOWN(ALIGN(preferred, align)); - areasize = (size + PAGE_SIZE-1) / PAGE_SIZE; - incr = align >> PAGE_SHIFT ? : 1; + if (bdata->hint_idx > sidx) { + /* Make sure we retry on failure */ + goal = 1; + sidx = ALIGN(bdata->hint_idx, step); + } -restart_scan: - for (i = preferred; i < eidx;) { - unsigned long j; + while (1) { + int merge; + void *region; + unsigned long eidx, i, start_off, end_off; +find_block: + sidx = find_next_zero_bit(bdata->node_bootmem_map, midx, sidx); + sidx = ALIGN(sidx, step); + eidx = sidx + PFN_UP(size); - i = find_next_zero_bit(node_bootmem_map, eidx, i); - i = ALIGN(i, incr); - if (i >= eidx) + if (sidx >= midx || eidx > midx) break; - if (test_bit(i, node_bootmem_map)) { - i += incr; - continue; - } - for (j = i + 1; j < i + areasize; ++j) { - if (j >= eidx) - goto fail_block; - if (test_bit(j, node_bootmem_map)) - goto fail_block; - } - start = i; - goto found; - fail_block: - i = ALIGN(j, incr); - if (i == j) - i += incr; - } - - if (preferred > 0) { - preferred = 0; - goto restart_scan; - } - return NULL; -found: - bdata->last_success = PFN_PHYS(start) + node_boot_start; - BUG_ON(start >= eidx); + for (i = sidx; i < eidx; i++) + if (test_bit(i, bdata->node_bootmem_map)) { + sidx = ALIGN(i, step); + if (sidx == i) + sidx += step; + goto find_block; + } - /* - * Is the next page of the previous allocation-end the start - * of this allocation's buffer? If yes then we can 'merge' - * the previous partial page with this allocation. - */ - if (align < PAGE_SIZE && - bdata->last_offset && bdata->last_pos+1 == start) { - unsigned long offset, remaining_size; - offset = ALIGN(bdata->last_offset, align); - BUG_ON(offset > PAGE_SIZE); - remaining_size = PAGE_SIZE - offset; - if (size < remaining_size) { - areasize = 0; - /* last_pos unchanged */ - bdata->last_offset = offset + size; - ret = phys_to_virt(bdata->last_pos * PAGE_SIZE + - offset + node_boot_start); - } else { - remaining_size = size - remaining_size; - areasize = (remaining_size + PAGE_SIZE-1) / PAGE_SIZE; - ret = phys_to_virt(bdata->last_pos * PAGE_SIZE + - offset + node_boot_start); - bdata->last_pos = start + areasize - 1; - bdata->last_offset = remaining_size; - } - bdata->last_offset &= ~PAGE_MASK; - } else { - bdata->last_pos = start + areasize - 1; - bdata->last_offset = size & ~PAGE_MASK; - ret = phys_to_virt(start * PAGE_SIZE + node_boot_start); + if (bdata->last_end_off && + PFN_DOWN(bdata->last_end_off) + 1 == sidx) + start_off = ALIGN(bdata->last_end_off, align); + else + start_off = PFN_PHYS(sidx); + + merge = PFN_DOWN(start_off) < sidx; + end_off = start_off + size; + + bdata->last_end_off = end_off; + bdata->hint_idx = PFN_UP(end_off); + + /* + * Reserve the area now: + */ + for (i = PFN_DOWN(start_off) + merge; + i < PFN_UP(end_off); i++) + if (test_and_set_bit(i, bdata->node_bootmem_map)) + BUG(); + + region = phys_to_virt(bdata->node_boot_start + start_off); + memset(region, 0, size); + return region; } - bdebug("nid=%td start=%lx end=%lx\n", - bdata - bootmem_node_data, - start + PFN_DOWN(bdata->node_boot_start), - start + areasize + PFN_DOWN(bdata->node_boot_start)); + if (goal) { + goal = 0; + sidx = 0; + goto find_block; + } - /* - * Reserve the area now: - */ - for (i = start; i < start + areasize; i++) - if (unlikely(test_and_set_bit(i, node_bootmem_map))) - BUG(); - memset(ret, 0, size); - return ret; + return NULL; } /** -- cgit v1.2.3 From 3560e249abda6bee41a07a7bf0383a6e193e2839 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 23 Jul 2008 21:28:09 -0700 Subject: bootmem: replace node_boot_start in struct bootmem_data Almost all users of this field need a PFN instead of a physical address, so replace node_boot_start with node_min_pfn. [Lee.Schermerhorn@hp.com: fix spurious BUG_ON() in mark_bootmem()] Signed-off-by: Johannes Weiner Cc: Signed-off-by: Lee Schermerhorn Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/mm/numa.c | 2 +- arch/arm/plat-omap/fb.c | 4 +--- arch/avr32/mm/init.c | 3 +-- arch/ia64/mm/discontig.c | 19 ++++++++++--------- arch/m32r/mm/discontig.c | 3 +-- arch/m32r/mm/init.c | 4 +--- arch/mn10300/mm/init.c | 6 +++--- arch/sh/mm/init.c | 2 +- include/linux/bootmem.h | 2 +- mm/bootmem.c | 40 +++++++++++++++++++++------------------- 10 files changed, 41 insertions(+), 44 deletions(-) (limited to 'include') diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index def0c74a78a8..d8c4ceaf00b9 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -304,7 +304,7 @@ void __init paging_init(void) for_each_online_node(nid) { bootmem_data_t *bdata = &bootmem_node_data[nid]; - unsigned long start_pfn = bdata->node_boot_start >> PAGE_SHIFT; + unsigned long start_pfn = bdata->node_min_pfn; unsigned long end_pfn = bdata->node_low_pfn; if (dma_local_pfn >= end_pfn - start_pfn) diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c index 7854f19b77cf..96d6f0619733 100644 --- a/arch/arm/plat-omap/fb.c +++ b/arch/arm/plat-omap/fb.c @@ -182,7 +182,7 @@ void __init omapfb_reserve_sdram(void) return; bdata = NODE_DATA(0)->bdata; - sdram_start = bdata->node_boot_start; + sdram_start = bdata->node_min_pfn << PAGE_SHIFT; sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start; reserved = 0; for (i = 0; ; i++) { @@ -340,5 +340,3 @@ unsigned long omapfb_reserve_sram(unsigned long sram_pstart, #endif - - diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index 786de88a82a7..3c85fdaa9487 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -119,8 +119,7 @@ void __init paging_init(void) unsigned long zones_size[MAX_NR_ZONES]; unsigned long low, start_pfn; - start_pfn = pgdat->bdata->node_boot_start; - start_pfn >>= PAGE_SHIFT; + start_pfn = pgdat->bdata->node_min_pfn; low = pgdat->bdata->node_low_pfn; memset(zones_size, 0, sizeof(zones_size)); diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 2fcf8464331e..d83125e1ed27 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -74,17 +74,17 @@ pg_data_t *pgdat_list[MAX_NUMNODES]; static int __init build_node_maps(unsigned long start, unsigned long len, int node) { - unsigned long cstart, epfn, end = start + len; + unsigned long spfn, epfn, end = start + len; struct bootmem_data *bdp = &bootmem_node_data[node]; epfn = GRANULEROUNDUP(end) >> PAGE_SHIFT; - cstart = GRANULEROUNDDOWN(start); + spfn = GRANULEROUNDDOWN(start) >> PAGE_SHIFT; if (!bdp->node_low_pfn) { - bdp->node_boot_start = cstart; + bdp->node_min_pfn = spfn; bdp->node_low_pfn = epfn; } else { - bdp->node_boot_start = min(cstart, bdp->node_boot_start); + bdp->node_min_pfn = min(spfn, bdp->node_min_pfn); bdp->node_low_pfn = max(epfn, bdp->node_low_pfn); } @@ -221,20 +221,21 @@ static void __init fill_pernode(int node, unsigned long pernode, static int __init find_pernode_space(unsigned long start, unsigned long len, int node) { - unsigned long epfn; + unsigned long spfn, epfn; unsigned long pernodesize = 0, pernode, pages, mapsize; struct bootmem_data *bdp = &bootmem_node_data[node]; + spfn = start >> PAGE_SHIFT; epfn = (start + len) >> PAGE_SHIFT; - pages = bdp->node_low_pfn - (bdp->node_boot_start >> PAGE_SHIFT); + pages = bdp->node_low_pfn - bdp->node_min_pfn; mapsize = bootmem_bootmap_pages(pages) << PAGE_SHIFT; /* * Make sure this memory falls within this node's usable memory * since we may have thrown some away in build_maps(). */ - if (start < bdp->node_boot_start || epfn > bdp->node_low_pfn) + if (spfn < bdp->node_min_pfn || epfn > bdp->node_low_pfn) return 0; /* Don't setup this node's local space twice... */ @@ -296,7 +297,7 @@ static void __init reserve_pernode_space(void) bdp = pdp->bdata; /* First the bootmem_map itself */ - pages = bdp->node_low_pfn - (bdp->node_boot_start>>PAGE_SHIFT); + pages = bdp->node_low_pfn - bdp->node_min_pfn; size = bootmem_bootmap_pages(pages) << PAGE_SHIFT; base = __pa(bdp->node_bootmem_map); reserve_bootmem_node(pdp, base, size, BOOTMEM_DEFAULT); @@ -466,7 +467,7 @@ void __init find_memory(void) init_bootmem_node(pgdat_list[node], map>>PAGE_SHIFT, - bdp->node_boot_start>>PAGE_SHIFT, + bdp->node_min_pfn, bdp->node_low_pfn); } diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c index cc23934bc41e..cbc3c4c54566 100644 --- a/arch/m32r/mm/discontig.c +++ b/arch/m32r/mm/discontig.c @@ -123,8 +123,7 @@ unsigned long __init setup_memory(void) return max_low_pfn; } -#define START_PFN(nid) \ - (NODE_DATA(nid)->bdata->node_boot_start >> PAGE_SHIFT) +#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn) #define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn) unsigned long __init zone_sizes_init(void) diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index 28799af15e95..2554eb59cfef 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -93,8 +93,7 @@ void free_initrd_mem(unsigned long, unsigned long); #endif /* It'd be good if these lines were in the standard header file. */ -#define START_PFN(nid) \ - (NODE_DATA(nid)->bdata->node_boot_start >> PAGE_SHIFT) +#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn) #define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn) #ifndef CONFIG_DISCONTIGMEM @@ -252,4 +251,3 @@ void free_initrd_mem(unsigned long start, unsigned long end) printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10); } #endif - diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c index 8c5d88c7b90a..8cee387a24fd 100644 --- a/arch/mn10300/mm/init.c +++ b/arch/mn10300/mm/init.c @@ -67,8 +67,8 @@ void __init paging_init(void) /* declare the sizes of the RAM zones (only use the normal zone) */ zones_size[ZONE_NORMAL] = - (contig_page_data.bdata->node_low_pfn) - - (contig_page_data.bdata->node_boot_start >> PAGE_SHIFT); + contig_page_data.bdata->node_low_pfn - + contig_page_data.bdata->node_min_pfn; /* pass the memory from the bootmem allocator to the main allocator */ free_area_init(zones_size); @@ -87,7 +87,7 @@ void __init mem_init(void) if (!mem_map) BUG(); -#define START_PFN (contig_page_data.bdata->node_boot_start >> PAGE_SHIFT) +#define START_PFN (contig_page_data.bdata->node_min_pfn) #define MAX_LOW_PFN (contig_page_data.bdata->node_low_pfn) max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN; diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index d7df26bd1e54..d652d375eb1e 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -191,7 +191,7 @@ void __init paging_init(void) pg_data_t *pgdat = NODE_DATA(nid); unsigned long low, start_pfn; - start_pfn = pgdat->bdata->node_boot_start >> PAGE_SHIFT; + start_pfn = pgdat->bdata->node_min_pfn; low = pgdat->bdata->node_low_pfn; if (max_zone_pfns[ZONE_NORMAL] < low) diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 90921d10ffa2..4ddf2922fc8d 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -28,7 +28,7 @@ extern unsigned long saved_max_pfn; * memory pages (including holes) on the node. */ typedef struct bootmem_data { - unsigned long node_boot_start; + unsigned long node_min_pfn; unsigned long node_low_pfn; void *node_bootmem_map; unsigned long last_end_off; diff --git a/mm/bootmem.c b/mm/bootmem.c index 282b786c2b15..4af15d0340ad 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -80,7 +80,7 @@ static void __init link_bootmem(bootmem_data_t *bdata) bootmem_data_t *ent; ent = list_entry(iter, bootmem_data_t, list); - if (bdata->node_boot_start < ent->node_boot_start) + if (bdata->node_min_pfn < ent->node_min_pfn) break; } list_add_tail(&bdata->list, iter); @@ -96,7 +96,7 @@ static unsigned long __init init_bootmem_core(bootmem_data_t *bdata, mminit_validate_memmodel_limits(&start, &end); bdata->node_bootmem_map = phys_to_virt(PFN_PHYS(mapstart)); - bdata->node_boot_start = PFN_PHYS(start); + bdata->node_min_pfn = start; bdata->node_low_pfn = end; link_bootmem(bdata); @@ -151,7 +151,7 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) if (!bdata->node_bootmem_map) return 0; - start = PFN_DOWN(bdata->node_boot_start); + start = bdata->node_min_pfn; end = bdata->node_low_pfn; /* @@ -167,7 +167,7 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) unsigned long *map, idx, vec; map = bdata->node_bootmem_map; - idx = start - PFN_DOWN(bdata->node_boot_start); + idx = start - bdata->node_min_pfn; vec = ~map[idx / BITS_PER_LONG]; if (aligned && vec == ~0UL && start + BITS_PER_LONG < end) { @@ -192,7 +192,7 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) } page = virt_to_page(bdata->node_bootmem_map); - pages = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start); + pages = bdata->node_low_pfn - bdata->node_min_pfn; pages = bootmem_bootmap_pages(pages); count += pages; while (pages--) @@ -231,8 +231,8 @@ static void __init __free(bootmem_data_t *bdata, unsigned long idx; bdebug("nid=%td start=%lx end=%lx\n", bdata - bootmem_node_data, - sidx + PFN_DOWN(bdata->node_boot_start), - eidx + PFN_DOWN(bdata->node_boot_start)); + sidx + bdata->node_min_pfn, + eidx + bdata->node_min_pfn); if (bdata->hint_idx > sidx) bdata->hint_idx = sidx; @@ -250,8 +250,8 @@ static int __init __reserve(bootmem_data_t *bdata, unsigned long sidx, bdebug("nid=%td start=%lx end=%lx flags=%x\n", bdata - bootmem_node_data, - sidx + PFN_DOWN(bdata->node_boot_start), - eidx + PFN_DOWN(bdata->node_boot_start), + sidx + bdata->node_min_pfn, + eidx + bdata->node_min_pfn, flags); for (idx = sidx; idx < eidx; idx++) @@ -261,7 +261,7 @@ static int __init __reserve(bootmem_data_t *bdata, unsigned long sidx, return -EBUSY; } bdebug("silent double reserve of PFN %lx\n", - idx + PFN_DOWN(bdata->node_boot_start)); + idx + bdata->node_min_pfn); } return 0; } @@ -275,11 +275,11 @@ static int __init mark_bootmem_node(bootmem_data_t *bdata, bdebug("nid=%td start=%lx end=%lx reserve=%d flags=%x\n", bdata - bootmem_node_data, start, end, reserve, flags); - BUG_ON(start < PFN_DOWN(bdata->node_boot_start)); + BUG_ON(start < bdata->node_min_pfn); BUG_ON(end > bdata->node_low_pfn); - sidx = start - PFN_DOWN(bdata->node_boot_start); - eidx = end - PFN_DOWN(bdata->node_boot_start); + sidx = start - bdata->node_min_pfn; + eidx = end - bdata->node_min_pfn; if (reserve) return __reserve(bdata, sidx, eidx, flags); @@ -299,7 +299,8 @@ static int __init mark_bootmem(unsigned long start, unsigned long end, int err; unsigned long max; - if (pos < PFN_DOWN(bdata->node_boot_start)) { + if (pos < bdata->node_min_pfn || + pos >= bdata->node_low_pfn) { BUG_ON(pos != start); continue; } @@ -422,7 +423,7 @@ static void * __init alloc_bootmem_core(struct bootmem_data *bdata, bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT, align, goal, limit); - min = PFN_DOWN(bdata->node_boot_start); + min = bdata->node_min_pfn; max = bdata->node_low_pfn; goal >>= PAGE_SHIFT; @@ -440,8 +441,8 @@ static void * __init alloc_bootmem_core(struct bootmem_data *bdata, else start = ALIGN(min, step); - sidx = start - PFN_DOWN(bdata->node_boot_start); - midx = max - PFN_DOWN(bdata->node_boot_start); + sidx = start - bdata->node_min_pfn;; + midx = max - bdata->node_min_pfn; if (bdata->hint_idx > sidx) { /* @@ -491,7 +492,8 @@ find_block: PFN_UP(end_off), BOOTMEM_EXCLUSIVE)) BUG(); - region = phys_to_virt(bdata->node_boot_start + start_off); + region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) + + start_off); memset(region, 0, size); return region; } @@ -518,7 +520,7 @@ restart: if (goal && bdata->node_low_pfn <= PFN_DOWN(goal)) continue; - if (limit && bdata->node_boot_start >= limit) + if (limit && bdata->node_min_pfn >= PFN_DOWN(limit)) break; region = alloc_bootmem_core(bdata, size, align, goal, limit); -- cgit v1.2.3 From 2be0ffe2b29bd31d3debd0877797892ff2d91f4c Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Wed, 23 Jul 2008 21:28:11 -0700 Subject: mm: add alloc_pages_exact() and free_pages_exact() alloc_pages_exact() is similar to alloc_pages(), except that it allocates the minimum number of pages to fulfill the request. This is useful if you want to allocate a very large buffer that is slightly larger than an even power-of-two number of pages. In that case, alloc_pages() will waste a lot of memory. I have a video driver that wants to allocate a 5MB buffer. alloc_pages() wiill waste 3MB of physically-contiguous memory. Signed-off-by: Timur Tabi Cc: Andi Kleen Acked-by: Mel Gorman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gfp.h | 3 +++ mm/page_alloc.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) (limited to 'include') diff --git a/include/linux/gfp.h b/include/linux/gfp.h index f640ed241422..e8003afeffba 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -228,6 +228,9 @@ extern struct page *alloc_page_vma(gfp_t gfp_mask, extern unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order); extern unsigned long get_zeroed_page(gfp_t gfp_mask); +void *alloc_pages_exact(size_t size, gfp_t gfp_mask); +void free_pages_exact(void *virt, size_t size); + #define __get_free_page(gfp_mask) \ __get_free_pages((gfp_mask),0) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index eaa86671ebbd..8d528d57b403 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1697,6 +1697,59 @@ void free_pages(unsigned long addr, unsigned int order) EXPORT_SYMBOL(free_pages); +/** + * alloc_pages_exact - allocate an exact number physically-contiguous pages. + * @size: the number of bytes to allocate + * @gfp_mask: GFP flags for the allocation + * + * This function is similar to alloc_pages(), except that it allocates the + * minimum number of pages to satisfy the request. alloc_pages() can only + * allocate memory in power-of-two pages. + * + * This function is also limited by MAX_ORDER. + * + * Memory allocated by this function must be released by free_pages_exact(). + */ +void *alloc_pages_exact(size_t size, gfp_t gfp_mask) +{ + unsigned int order = get_order(size); + unsigned long addr; + + addr = __get_free_pages(gfp_mask, order); + if (addr) { + unsigned long alloc_end = addr + (PAGE_SIZE << order); + unsigned long used = addr + PAGE_ALIGN(size); + + split_page(virt_to_page(addr), order); + while (used < alloc_end) { + free_page(used); + used += PAGE_SIZE; + } + } + + return (void *)addr; +} +EXPORT_SYMBOL(alloc_pages_exact); + +/** + * free_pages_exact - release memory allocated via alloc_pages_exact() + * @virt: the value returned by alloc_pages_exact. + * @size: size of allocation, same value as passed to alloc_pages_exact(). + * + * Release the memory allocated by a previous call to alloc_pages_exact. + */ +void free_pages_exact(void *virt, size_t size) +{ + unsigned long addr = (unsigned long)virt; + unsigned long end = addr + PAGE_ALIGN(size); + + while (addr < end) { + free_page(addr); + addr += PAGE_SIZE; + } +} +EXPORT_SYMBOL(free_pages_exact); + static unsigned int nr_free_zone_pages(int offset) { struct zoneref *z; -- cgit v1.2.3 From 27ac792ca0b0a1e7e65f20342260650516c95864 Mon Sep 17 00:00:00 2001 From: Andrea Righi Date: Wed, 23 Jul 2008 21:28:13 -0700 Subject: PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit boundary. For example: u64 val = PAGE_ALIGN(size); always returns a value < 4GB even if size is greater than 4GB. The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for example): #define PAGE_SHIFT 12 #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) ... #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) The "~" is performed on a 32-bit value, so everything in "and" with PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary. Using the ALIGN() macro seems to be the right way, because it uses typeof(addr) for the mask. Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in include/linux/mm.h. See also lkml discussion: http://lkml.org/lkml/2008/6/11/237 [akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c] [akpm@linux-foundation.org: fix v850] [akpm@linux-foundation.org: fix powerpc] [akpm@linux-foundation.org: fix arm] [akpm@linux-foundation.org: fix mips] [akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c] [akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c] [akpm@linux-foundation.org: fix powerpc] Signed-off-by: Andrea Righi Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/kernel/module.c | 1 + arch/arm/plat-omap/fb.c | 1 + arch/avr32/mm/ioremap.c | 1 + arch/h8300/kernel/setup.c | 1 + arch/m68k/amiga/chipram.c | 1 + arch/m68knommu/kernel/setup.c | 1 + arch/mips/kernel/module.c | 1 + arch/mips/sgi-ip27/ip27-klnuma.c | 1 + arch/powerpc/kernel/suspend.c | 1 + arch/powerpc/lib/code-patching.c | 1 + arch/sparc64/kernel/iommu_common.h | 2 +- arch/x86/kernel/module_64.c | 1 + arch/xtensa/kernel/setup.c | 1 + drivers/char/random.c | 1 + drivers/ieee1394/iso.c | 1 + drivers/media/video/pvrusb2/pvrusb2-dvb.c | 1 + drivers/media/video/pvrusb2/pvrusb2-ioread.c | 1 + drivers/media/video/uvc/uvc_queue.c | 1 + drivers/media/video/videobuf-core.c | 1 + drivers/mtd/maps/uclinux.c | 1 + drivers/net/mlx4/eq.c | 1 + drivers/pcmcia/electra_cf.c | 1 + drivers/scsi/sun_esp.c | 1 + drivers/video/acornfb.c | 1 + drivers/video/imxfb.c | 1 + drivers/video/omap/dispc.c | 1 + drivers/video/omap/omapfb_main.c | 1 + drivers/video/pxafb.c | 1 + drivers/video/sa1100fb.c | 1 + include/asm-alpha/page.h | 3 --- include/asm-arm/page-nommu.h | 4 +--- include/asm-arm/page.h | 3 --- include/asm-avr32/page.h | 3 --- include/asm-blackfin/page.h | 3 --- include/asm-cris/page.h | 3 --- include/asm-frv/page.h | 3 --- include/asm-h8300/page.h | 3 --- include/asm-ia64/page.h | 1 - include/asm-m32r/page.h | 3 --- include/asm-m68k/dvma.h | 2 +- include/asm-m68k/page.h | 3 --- include/asm-m68knommu/page.h | 3 --- include/asm-mips/page.h | 3 --- include/asm-mips/processor.h | 2 +- include/asm-mn10300/page.h | 3 --- include/asm-parisc/page.h | 4 ---- include/asm-powerpc/page.h | 3 --- include/asm-s390/page.h | 3 --- include/asm-sh/page.h | 3 --- include/asm-sparc/page_32.h | 3 --- include/asm-sparc/page_64.h | 3 --- include/asm-um/page.h | 3 --- include/asm-v850/page.h | 4 ---- include/asm-x86/page.h | 3 --- include/asm-xtensa/page.h | 2 -- include/linux/mm.h | 3 +++ sound/core/info.c | 1 + 57 files changed, 36 insertions(+), 74 deletions(-) (limited to 'include') diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index 79b7e5cf5416..a68259a0cccd 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c index 96d6f0619733..5d107520e6b9 100644 --- a/arch/arm/plat-omap/fb.c +++ b/arch/arm/plat-omap/fb.c @@ -23,6 +23,7 @@ #include #include +#include #include #include #include diff --git a/arch/avr32/mm/ioremap.c b/arch/avr32/mm/ioremap.c index 3437c82434ac..f03b79f0e0ab 100644 --- a/arch/avr32/mm/ioremap.c +++ b/arch/avr32/mm/ioremap.c @@ -6,6 +6,7 @@ * published by the Free Software Foundation. */ #include +#include #include #include diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c index b1f25c20a5db..7fda657110eb 100644 --- a/arch/h8300/kernel/setup.c +++ b/arch/h8300/kernel/setup.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/m68k/amiga/chipram.c b/arch/m68k/amiga/chipram.c index cbe36538af47..61df1d33c050 100644 --- a/arch/m68k/amiga/chipram.c +++ b/arch/m68k/amiga/chipram.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c index 03f4fe6a2fc0..5985f1989021 100644 --- a/arch/m68knommu/kernel/setup.c +++ b/arch/m68knommu/kernel/setup.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index e7ed0ac48537..1f60e27523d9 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include diff --git a/arch/mips/sgi-ip27/ip27-klnuma.c b/arch/mips/sgi-ip27/ip27-klnuma.c index 48932ce1d730..d9c79d8be81d 100644 --- a/arch/mips/sgi-ip27/ip27-klnuma.c +++ b/arch/mips/sgi-ip27/ip27-klnuma.c @@ -4,6 +4,7 @@ * Copyright 2000 - 2001 Kanoj Sarcar (kanoj@sgi.com) */ #include +#include #include #include #include diff --git a/arch/powerpc/kernel/suspend.c b/arch/powerpc/kernel/suspend.c index 8cee57107541..6fc6328dc626 100644 --- a/arch/powerpc/kernel/suspend.c +++ b/arch/powerpc/kernel/suspend.c @@ -7,6 +7,7 @@ * Copyright (c) 2001 Patrick Mochel */ +#include #include /* References to section boundaries */ diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 0559fe086eb4..7c975d43e3f3 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h index f3575a614fa2..53b19c8231a9 100644 --- a/arch/sparc64/kernel/iommu_common.h +++ b/arch/sparc64/kernel/iommu_common.h @@ -23,7 +23,7 @@ #define IO_PAGE_SHIFT 13 #define IO_PAGE_SIZE (1UL << IO_PAGE_SHIFT) #define IO_PAGE_MASK (~(IO_PAGE_SIZE-1)) -#define IO_PAGE_ALIGN(addr) (((addr)+IO_PAGE_SIZE-1)&IO_PAGE_MASK) +#define IO_PAGE_ALIGN(addr) ALIGN(addr, IO_PAGE_SIZE) #define IO_TSB_ENTRIES (128*1024) #define IO_TSB_SIZE (IO_TSB_ENTRIES * 8) diff --git a/arch/x86/kernel/module_64.c b/arch/x86/kernel/module_64.c index 0e867676b5a5..6ba87830d4b1 100644 --- a/arch/x86/kernel/module_64.c +++ b/arch/x86/kernel/module_64.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 5e6d75c9f92b..a00359e8f7a8 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -16,6 +16,7 @@ #include #include +#include #include #include #include diff --git a/drivers/char/random.c b/drivers/char/random.c index 0cf98bd4f2d2..e0d0e371909c 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -236,6 +236,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ieee1394/iso.c b/drivers/ieee1394/iso.c index 07ca35c98f96..1cf6487b65ba 100644 --- a/drivers/ieee1394/iso.c +++ b/drivers/ieee1394/iso.c @@ -11,6 +11,7 @@ #include #include +#include #include #include "hosts.h" diff --git a/drivers/media/video/pvrusb2/pvrusb2-dvb.c b/drivers/media/video/pvrusb2/pvrusb2-dvb.c index 6ec4bf81fc7f..77b3c3385066 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-dvb.c +++ b/drivers/media/video/pvrusb2/pvrusb2-dvb.c @@ -20,6 +20,7 @@ #include #include +#include #include "dvbdev.h" #include "pvrusb2-debug.h" #include "pvrusb2-hdw-internal.h" diff --git a/drivers/media/video/pvrusb2/pvrusb2-ioread.c b/drivers/media/video/pvrusb2/pvrusb2-ioread.c index 05a1376405e7..b4824782d858 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-ioread.c +++ b/drivers/media/video/pvrusb2/pvrusb2-ioread.c @@ -22,6 +22,7 @@ #include "pvrusb2-debug.h" #include #include +#include #include #include #include diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c index 7388d0cee3d4..5646a6a32939 100644 --- a/drivers/media/video/uvc/uvc_queue.c +++ b/drivers/media/video/uvc/uvc_queue.c @@ -13,6 +13,7 @@ #include #include +#include #include #include #include diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c index 0a88c44ace00..b7b05842cf28 100644 --- a/drivers/media/video/videobuf-core.c +++ b/drivers/media/video/videobuf-core.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c index c42f4b83f686..3fcf92130aa4 100644 --- a/drivers/mtd/maps/uclinux.c +++ b/drivers/mtd/maps/uclinux.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c index e141a1513f07..ea3a09aaa844 100644 --- a/drivers/net/mlx4/eq.c +++ b/drivers/net/mlx4/eq.c @@ -33,6 +33,7 @@ #include #include +#include #include #include diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c index c21f9a9c3e3f..a34284b1482a 100644 --- a/drivers/pcmcia/electra_cf.c +++ b/drivers/pcmcia/electra_cf.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/sun_esp.c b/drivers/scsi/sun_esp.c index 2c87db98cdfb..f9cf70151366 100644 --- a/drivers/scsi/sun_esp.c +++ b/drivers/scsi/sun_esp.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c index eedb8285e32f..017233d0c481 100644 --- a/drivers/video/acornfb.c +++ b/drivers/video/acornfb.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c index 94e4d3ac1a05..0c5a475c1cae 100644 --- a/drivers/video/imxfb.c +++ b/drivers/video/imxfb.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c index ab32ceb06178..ab77c51fe9d6 100644 --- a/drivers/video/omap/dispc.c +++ b/drivers/video/omap/dispc.c @@ -20,6 +20,7 @@ */ #include #include +#include #include #include #include diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c index 14d0f7a11145..f85af5c4fa68 100644 --- a/drivers/video/omap/omapfb_main.c +++ b/drivers/video/omap/omapfb_main.c @@ -25,6 +25,7 @@ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include +#include #include #include diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index bb2514369507..5e8a140399fc 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c index ab2b2110478b..4a9f7e121807 100644 --- a/drivers/video/sa1100fb.c +++ b/drivers/video/sa1100fb.c @@ -167,6 +167,7 @@ #include #include #include +#include #include #include #include diff --git a/include/asm-alpha/page.h b/include/asm-alpha/page.h index 22ff9762d17b..0995f9d13417 100644 --- a/include/asm-alpha/page.h +++ b/include/asm-alpha/page.h @@ -80,9 +80,6 @@ typedef struct page *pgtable_t; #endif /* !__ASSEMBLY__ */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #define __pa(x) ((unsigned long) (x) - PAGE_OFFSET) #define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) #ifndef CONFIG_DISCONTIGMEM diff --git a/include/asm-arm/page-nommu.h b/include/asm-arm/page-nommu.h index a1bcad060480..ea1cde84f500 100644 --- a/include/asm-arm/page-nommu.h +++ b/include/asm-arm/page-nommu.h @@ -7,6 +7,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ + #ifndef _ASMARM_PAGE_NOMMU_H #define _ASMARM_PAGE_NOMMU_H @@ -42,9 +43,6 @@ typedef unsigned long pgprot_t; #define __pmd(x) (x) #define __pgprot(x) (x) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - extern unsigned long memory_start; extern unsigned long memory_end; diff --git a/include/asm-arm/page.h b/include/asm-arm/page.h index 8e05bdb5f12f..7c5fc5582e5d 100644 --- a/include/asm-arm/page.h +++ b/include/asm-arm/page.h @@ -15,9 +15,6 @@ #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #ifndef __ASSEMBLY__ #ifndef CONFIG_MMU diff --git a/include/asm-avr32/page.h b/include/asm-avr32/page.h index cbbc5ca9728b..f805d1cb11bc 100644 --- a/include/asm-avr32/page.h +++ b/include/asm-avr32/page.h @@ -57,9 +57,6 @@ static inline int get_order(unsigned long size) #endif /* !__ASSEMBLY__ */ -/* Align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - /* * The hardware maps the virtual addresses 0x80000000 -> 0x9fffffff * permanently to the physical addresses 0x00000000 -> 0x1fffffff when diff --git a/include/asm-blackfin/page.h b/include/asm-blackfin/page.h index c7db0220fbd6..344f6a8c1f22 100644 --- a/include/asm-blackfin/page.h +++ b/include/asm-blackfin/page.h @@ -51,9 +51,6 @@ typedef struct page *pgtable_t; #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - extern unsigned long memory_start; extern unsigned long memory_end; diff --git a/include/asm-cris/page.h b/include/asm-cris/page.h index c45bb1ef397c..d19272ba6b69 100644 --- a/include/asm-cris/page.h +++ b/include/asm-cris/page.h @@ -60,9 +60,6 @@ typedef struct page *pgtable_t; #define page_to_phys(page) __pa((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #ifndef __ASSEMBLY__ #endif /* __ASSEMBLY__ */ diff --git a/include/asm-frv/page.h b/include/asm-frv/page.h index c2c1e89e747d..bd9c220094c7 100644 --- a/include/asm-frv/page.h +++ b/include/asm-frv/page.h @@ -40,9 +40,6 @@ typedef struct page *pgtable_t; #define __pgprot(x) ((pgprot_t) { (x) } ) #define PTE_MASK PAGE_MASK -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - #define devmem_is_allowed(pfn) 1 #define __pa(vaddr) virt_to_phys((void *) (unsigned long) (vaddr)) diff --git a/include/asm-h8300/page.h b/include/asm-h8300/page.h index d6a3eaf3b27e..0b6acf0b03aa 100644 --- a/include/asm-h8300/page.h +++ b/include/asm-h8300/page.h @@ -43,9 +43,6 @@ typedef struct page *pgtable_t; #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - extern unsigned long memory_start; extern unsigned long memory_end; diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h index 36f39321b768..5f271bc712ee 100644 --- a/include/asm-ia64/page.h +++ b/include/asm-ia64/page.h @@ -40,7 +40,6 @@ #define PAGE_SIZE (__IA64_UL_CONST(1) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE - 1)) -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) #define PERCPU_PAGE_SHIFT 16 /* log2() of max. size of per-CPU area */ #define PERCPU_PAGE_SIZE (__IA64_UL_CONST(1) << PERCPU_PAGE_SHIFT) diff --git a/include/asm-m32r/page.h b/include/asm-m32r/page.h index 8a677f3fca68..c9333089fe11 100644 --- a/include/asm-m32r/page.h +++ b/include/asm-m32r/page.h @@ -41,9 +41,6 @@ typedef struct page *pgtable_t; #endif /* !__ASSEMBLY__ */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - /* * This handles the memory map.. We could make this a config * option, but too many people screw it up, and too few need diff --git a/include/asm-m68k/dvma.h b/include/asm-m68k/dvma.h index 4fff408d0150..890bbf7e7758 100644 --- a/include/asm-m68k/dvma.h +++ b/include/asm-m68k/dvma.h @@ -13,7 +13,7 @@ #define DVMA_PAGE_SHIFT 13 #define DVMA_PAGE_SIZE (1UL << DVMA_PAGE_SHIFT) #define DVMA_PAGE_MASK (~(DVMA_PAGE_SIZE-1)) -#define DVMA_PAGE_ALIGN(addr) (((addr)+DVMA_PAGE_SIZE-1)&DVMA_PAGE_MASK) +#define DVMA_PAGE_ALIGN(addr) ALIGN(addr, DVMA_PAGE_SIZE) extern void dvma_init(void); extern int dvma_map_iommu(unsigned long kaddr, unsigned long baddr, diff --git a/include/asm-m68k/page.h b/include/asm-m68k/page.h index 880c2cbff8a6..a34b8bad7847 100644 --- a/include/asm-m68k/page.h +++ b/include/asm-m68k/page.h @@ -103,9 +103,6 @@ typedef struct page *pgtable_t; #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #endif /* !__ASSEMBLY__ */ #include diff --git a/include/asm-m68knommu/page.h b/include/asm-m68knommu/page.h index 1e82ebb7d644..3a1ede4544cb 100644 --- a/include/asm-m68knommu/page.h +++ b/include/asm-m68knommu/page.h @@ -43,9 +43,6 @@ typedef struct page *pgtable_t; #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - extern unsigned long memory_start; extern unsigned long memory_end; diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h index 494f00ba9541..fe7a88ea066e 100644 --- a/include/asm-mips/page.h +++ b/include/asm-mips/page.h @@ -137,9 +137,6 @@ typedef struct { unsigned long pgprot; } pgprot_t; #endif /* !__ASSEMBLY__ */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - /* * __pa()/__va() should be used only during mem init. */ diff --git a/include/asm-mips/processor.h b/include/asm-mips/processor.h index 58cbac5a64e4..a1e4453469f9 100644 --- a/include/asm-mips/processor.h +++ b/include/asm-mips/processor.h @@ -45,7 +45,7 @@ extern unsigned int vced_count, vcei_count; * This decides where the kernel will search for a free chunk of vm * space during mmap's. */ -#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) +#define TASK_UNMAPPED_BASE ((TASK_SIZE / 3) & ~(PAGE_SIZE)) #endif #ifdef CONFIG_64BIT diff --git a/include/asm-mn10300/page.h b/include/asm-mn10300/page.h index 124971b9fb9b..8288e124165b 100644 --- a/include/asm-mn10300/page.h +++ b/include/asm-mn10300/page.h @@ -61,9 +61,6 @@ typedef struct page *pgtable_t; #endif /* !__ASSEMBLY__ */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - /* * This handles the memory map.. We could make this a config * option, but too many people screw it up, and too few need diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h index 27d50b859541..c3941f09a878 100644 --- a/include/asm-parisc/page.h +++ b/include/asm-parisc/page.h @@ -119,10 +119,6 @@ extern int npmem_ranges; #define PMD_ENTRY_SIZE (1UL << BITS_PER_PMD_ENTRY) #define PTE_ENTRY_SIZE (1UL << BITS_PER_PTE_ENTRY) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - - #define LINUX_GATEWAY_SPACE 0 /* This governs the relationship between virtual and physical addresses. diff --git a/include/asm-powerpc/page.h b/include/asm-powerpc/page.h index cffdf0eb0df6..e088545cb3f5 100644 --- a/include/asm-powerpc/page.h +++ b/include/asm-powerpc/page.h @@ -119,9 +119,6 @@ extern phys_addr_t kernstart_addr; /* align addr on a size boundary - adjust address up if needed */ #define _ALIGN(addr,size) _ALIGN_UP(addr,size) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE) - /* * Don't compare things with KERNELBASE or PAGE_OFFSET to test for * "kernelness", use is_kernel_addr() - it should do what you want. diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h index 12fd9c4f0f15..991ba939408c 100644 --- a/include/asm-s390/page.h +++ b/include/asm-s390/page.h @@ -138,9 +138,6 @@ void arch_alloc_page(struct page *page, int order); #endif /* !__ASSEMBLY__ */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #define __PAGE_OFFSET 0x0UL #define PAGE_OFFSET 0x0UL #define __pa(x) (unsigned long)(x) diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 304c30b5d947..5dc01d2fcc4c 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -22,9 +22,6 @@ #define PAGE_MASK (~(PAGE_SIZE-1)) #define PTE_MASK PAGE_MASK -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #if defined(CONFIG_HUGETLB_PAGE_SIZE_64K) #define HPAGE_SHIFT 16 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K) diff --git a/include/asm-sparc/page_32.h b/include/asm-sparc/page_32.h index 14de518cc38f..cf5fb70ca1c1 100644 --- a/include/asm-sparc/page_32.h +++ b/include/asm-sparc/page_32.h @@ -134,9 +134,6 @@ BTFIXUPDEF_SETHI(sparc_unmapped_base) #endif /* !(__ASSEMBLY__) */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #define PAGE_OFFSET 0xf0000000 #ifndef __ASSEMBLY__ extern unsigned long phys_base; diff --git a/include/asm-sparc/page_64.h b/include/asm-sparc/page_64.h index a8a2bba032c1..b579b910ef51 100644 --- a/include/asm-sparc/page_64.h +++ b/include/asm-sparc/page_64.h @@ -106,9 +106,6 @@ typedef struct page *pgtable_t; #endif /* !(__ASSEMBLY__) */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - /* We used to stick this into a hard-coded global register (%g4) * but that does not make sense anymore. */ diff --git a/include/asm-um/page.h b/include/asm-um/page.h index 916e1a61999f..335c57383c02 100644 --- a/include/asm-um/page.h +++ b/include/asm-um/page.h @@ -92,9 +92,6 @@ typedef struct page *pgtable_t; #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - extern unsigned long uml_physmem; #define PAGE_OFFSET (uml_physmem) diff --git a/include/asm-v850/page.h b/include/asm-v850/page.h index 74a539a9bd59..f9de35d873fa 100644 --- a/include/asm-v850/page.h +++ b/include/asm-v850/page.h @@ -94,10 +94,6 @@ typedef unsigned long pgprot_t; #endif /* !__ASSEMBLY__ */ -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - - /* No current v850 processor has virtual memory. */ #define __virt_to_phys(addr) (addr) #define __phys_to_virt(addr) (addr) diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index 6e02098b1605..49982110e4d9 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -34,9 +34,6 @@ #define HUGE_MAX_HSTATE 2 -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - #ifndef __ASSEMBLY__ #include #endif diff --git a/include/asm-xtensa/page.h b/include/asm-xtensa/page.h index 80a6ae0dd259..11f7dc2dbec7 100644 --- a/include/asm-xtensa/page.h +++ b/include/asm-xtensa/page.h @@ -26,13 +26,11 @@ /* * PAGE_SHIFT determines the page size - * PAGE_ALIGN(x) aligns the pointer to the (next) page boundary */ #define PAGE_SHIFT 12 #define PAGE_SIZE (__XTENSA_UL_CONST(1) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE - 1) & PAGE_MASK) #define PAGE_OFFSET XCHAL_KSEG_CACHED_VADDR #define MAX_MEM_PFN XCHAL_KSEG_SIZE diff --git a/include/linux/mm.h b/include/linux/mm.h index df322fb4df31..d87a5a5fe87d 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -41,6 +41,9 @@ extern unsigned long mmap_min_addr; #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n)) +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) + /* * Linux kernel virtual memory manager primitives. * The idea being to have a "virtual" mm in the same way diff --git a/sound/core/info.c b/sound/core/info.c index cb5ead3e202d..c67773ad9298 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -21,6 +21,7 @@ #include #include +#include #include #include #include -- cgit v1.2.3 From af370fb8cb3031f20438f246798d5f0d98089f29 Mon Sep 17 00:00:00 2001 From: Yasunori Goto Date: Wed, 23 Jul 2008 21:28:17 -0700 Subject: memory hotplug: small fixes to bootmem freeing for memory hotremove - Change some naming * Magic -> types * MIX_INFO -> MIX_SECTION_INFO * Change definition of bootmem type from direct hex value - __free_pages_bootmem() becomes __meminit. Signed-off-by: Yasunori Goto Cc: Andy Whitcroft Cc: Badari Pulavarty Cc: Yinghai Lu Cc: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memory_hotplug.h | 8 ++++---- mm/memory_hotplug.c | 12 ++++++------ mm/page_alloc.c | 2 +- 3 files changed, 11 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index ea9f5ad9ec8e..3628e5088f64 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -13,12 +13,12 @@ struct mem_section; #ifdef CONFIG_MEMORY_HOTPLUG /* - * Magic number for free bootmem. + * Types for free bootmem. * The normal smallest mapcount is -1. Here is smaller value than it. */ -#define SECTION_INFO 0xfffffffe -#define MIX_INFO 0xfffffffd -#define NODE_INFO 0xfffffffc +#define SECTION_INFO (-1 - 1) +#define MIX_SECTION_INFO (-1 - 2) +#define NODE_INFO (-1 - 3) /* * pgdat resizing functions diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index ec85c37dcfb9..0fb05b258f0c 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -62,9 +62,9 @@ static void release_memory_resource(struct resource *res) #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE #ifndef CONFIG_SPARSEMEM_VMEMMAP -static void get_page_bootmem(unsigned long info, struct page *page, int magic) +static void get_page_bootmem(unsigned long info, struct page *page, int type) { - atomic_set(&page->_mapcount, magic); + atomic_set(&page->_mapcount, type); SetPagePrivate(page); set_page_private(page, info); atomic_inc(&page->_count); @@ -72,10 +72,10 @@ static void get_page_bootmem(unsigned long info, struct page *page, int magic) void put_page_bootmem(struct page *page) { - int magic; + int type; - magic = atomic_read(&page->_mapcount); - BUG_ON(magic >= -1); + type = atomic_read(&page->_mapcount); + BUG_ON(type >= -1); if (atomic_dec_return(&page->_count) == 1) { ClearPagePrivate(page); @@ -119,7 +119,7 @@ static void register_page_bootmem_info_section(unsigned long start_pfn) mapsize = PAGE_ALIGN(usemap_size()) >> PAGE_SHIFT; for (i = 0; i < mapsize; i++, page++) - get_page_bootmem(section_nr, page, MIX_INFO); + get_page_bootmem(section_nr, page, MIX_SECTION_INFO); } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index cd4c41432ef6..6da667274df5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -533,7 +533,7 @@ static void __free_pages_ok(struct page *page, unsigned int order) /* * permit the bootmem allocator to evade page validation on high-order frees */ -void __free_pages_bootmem(struct page *page, unsigned int order) +void __meminit __free_pages_bootmem(struct page *page, unsigned int order) { if (order == 0) { __ClearPageReserved(page); -- cgit v1.2.3 From 5c755e9fd813810680abd56ec09a5f90143e815b Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Wed, 23 Jul 2008 21:28:19 -0700 Subject: memory-hotplug: add sysfs removable attribute for hotplug memory remove Memory may be hot-removed on a per-memory-block basis, particularly on POWER where the SPARSEMEM section size often matches the memory-block size. A user-level agent must be able to identify which sections of memory are likely to be removable before attempting the potentially expensive operation. This patch adds a file called "removable" to the memory directory in sysfs to help such an agent. In this patch, a memory block is considered removable if; o It contains only MOVABLE pageblocks o It contains only pageblocks with free pages regardless of pageblock type On the other hand, a memory block starting with a PageReserved() page will never be considered removable. Without this patch, the user-agent is forced to choose a memory block to remove randomly. Sample output of the sysfs files: ./memory/memory0/removable: 0 ./memory/memory1/removable: 0 ./memory/memory2/removable: 0 ./memory/memory3/removable: 0 ./memory/memory4/removable: 0 ./memory/memory5/removable: 0 ./memory/memory6/removable: 0 ./memory/memory7/removable: 1 ./memory/memory8/removable: 0 ./memory/memory9/removable: 0 ./memory/memory10/removable: 0 ./memory/memory11/removable: 0 ./memory/memory12/removable: 0 ./memory/memory13/removable: 0 ./memory/memory14/removable: 0 ./memory/memory15/removable: 0 ./memory/memory16/removable: 0 ./memory/memory17/removable: 1 ./memory/memory18/removable: 1 ./memory/memory19/removable: 1 ./memory/memory20/removable: 1 ./memory/memory21/removable: 1 ./memory/memory22/removable: 1 Signed-off-by: Badari Pulavarty Signed-off-by: Mel Gorman Acked-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/ABI/testing/sysfs-devices-memory | 24 +++++++++++ drivers/base/memory.c | 19 ++++++++ include/linux/memory_hotplug.h | 12 ++++++ mm/memory_hotplug.c | 60 ++++++++++++++++++++++++++ 4 files changed, 115 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-devices-memory (limited to 'include') diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory new file mode 100644 index 000000000000..7a16fe1e2270 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-memory @@ -0,0 +1,24 @@ +What: /sys/devices/system/memory +Date: June 2008 +Contact: Badari Pulavarty +Description: + The /sys/devices/system/memory contains a snapshot of the + internal state of the kernel memory blocks. Files could be + added or removed dynamically to represent hot-add/remove + operations. + +Users: hotplug memory add/remove tools + https://w3.opensource.ibm.com/projects/powerpc-utils/ + +What: /sys/devices/system/memory/memoryX/removable +Date: June 2008 +Contact: Badari Pulavarty +Description: + The file /sys/devices/system/memory/memoryX/removable + indicates whether this memory block is removable or not. + This is useful for a user-level agent to determine + identify removable sections of the memory before attempting + potentially expensive hot-remove memory operation + +Users: hotplug memory remove tools + https://w3.opensource.ibm.com/projects/powerpc-utils/ diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 4d4e0e7b6e92..855ed1a9f97b 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -100,6 +100,21 @@ static ssize_t show_mem_phys_index(struct sys_device *dev, return sprintf(buf, "%08lx\n", mem->phys_index); } +/* + * Show whether the section of memory is likely to be hot-removable + */ +static ssize_t show_mem_removable(struct sys_device *dev, char *buf) +{ + unsigned long start_pfn; + int ret; + struct memory_block *mem = + container_of(dev, struct memory_block, sysdev); + + start_pfn = section_nr_to_pfn(mem->phys_index); + ret = is_mem_section_removable(start_pfn, PAGES_PER_SECTION); + return sprintf(buf, "%d\n", ret); +} + /* * online, offline, going offline, etc. */ @@ -262,6 +277,7 @@ static ssize_t show_phys_device(struct sys_device *dev, static SYSDEV_ATTR(phys_index, 0444, show_mem_phys_index, NULL); static SYSDEV_ATTR(state, 0644, show_mem_state, store_mem_state); static SYSDEV_ATTR(phys_device, 0444, show_phys_device, NULL); +static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL); #define mem_create_simple_file(mem, attr_name) \ sysdev_create_file(&mem->sysdev, &attr_##attr_name) @@ -350,6 +366,8 @@ static int add_memory_block(unsigned long node_id, struct mem_section *section, ret = mem_create_simple_file(mem, state); if (!ret) ret = mem_create_simple_file(mem, phys_device); + if (!ret) + ret = mem_create_simple_file(mem, removable); return ret; } @@ -394,6 +412,7 @@ int remove_memory_block(unsigned long node_id, struct mem_section *section, mem_remove_simple_file(mem, phys_index); mem_remove_simple_file(mem, state); mem_remove_simple_file(mem, phys_device); + mem_remove_simple_file(mem, removable); unregister_memory(mem, section); return 0; diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 3628e5088f64..763ba81fc0f0 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -199,6 +199,18 @@ extern int walk_memory_resource(unsigned long start_pfn, unsigned long nr_pages, void *arg, int (*func)(unsigned long, unsigned long, void *)); +#ifdef CONFIG_MEMORY_HOTREMOVE + +extern int is_mem_section_removable(unsigned long pfn, unsigned long nr_pages); + +#else +static inline int is_mem_section_removable(unsigned long pfn, + unsigned long nr_pages) +{ + return 0; +} +#endif /* CONFIG_MEMORY_HOTREMOVE */ + extern int add_memory(int nid, u64 start, u64 size); extern int arch_add_memory(int nid, u64 start, u64 size); extern int remove_memory(u64 start, u64 size); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 93aba78dc8b6..89fee2dcb039 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -522,6 +522,66 @@ error: EXPORT_SYMBOL_GPL(add_memory); #ifdef CONFIG_MEMORY_HOTREMOVE +/* + * A free page on the buddy free lists (not the per-cpu lists) has PageBuddy + * set and the size of the free page is given by page_order(). Using this, + * the function determines if the pageblock contains only free pages. + * Due to buddy contraints, a free page at least the size of a pageblock will + * be located at the start of the pageblock + */ +static inline int pageblock_free(struct page *page) +{ + return PageBuddy(page) && page_order(page) >= pageblock_order; +} + +/* Return the start of the next active pageblock after a given page */ +static struct page *next_active_pageblock(struct page *page) +{ + int pageblocks_stride; + + /* Ensure the starting page is pageblock-aligned */ + BUG_ON(page_to_pfn(page) & (pageblock_nr_pages - 1)); + + /* Move forward by at least 1 * pageblock_nr_pages */ + pageblocks_stride = 1; + + /* If the entire pageblock is free, move to the end of free page */ + if (pageblock_free(page)) + pageblocks_stride += page_order(page) - pageblock_order; + + return page + (pageblocks_stride * pageblock_nr_pages); +} + +/* Checks if this range of memory is likely to be hot-removable. */ +int is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages) +{ + int type; + struct page *page = pfn_to_page(start_pfn); + struct page *end_page = page + nr_pages; + + /* Check the starting page of each pageblock within the range */ + for (; page < end_page; page = next_active_pageblock(page)) { + type = get_pageblock_migratetype(page); + + /* + * A pageblock containing MOVABLE or free pages is considered + * removable + */ + if (type != MIGRATE_MOVABLE && !pageblock_free(page)) + return 0; + + /* + * A pageblock starting with a PageReserved page is not + * considered removable. + */ + if (PageReserved(page)) + return 0; + } + + /* All pageblocks in the memory block are likely to be hot-removable */ + return 1; +} + /* * Confirm all pages in a range [start, end) is belongs to the same zone. */ -- cgit v1.2.3 From 9ca908f47bc784c90e17a553ce33e756c73feac4 Mon Sep 17 00:00:00 2001 From: Milton Miller Date: Wed, 23 Jul 2008 21:28:20 -0700 Subject: kcalloc: remove runtime division While in all cases in the kernel we know the size of the elements to be created, we don't always know the count of elements. By commuting the size and count in the overflow check, the compiler can reduce the runtime division of size_t with a compare to a (unique) constant in these cases. Signed-off-by: Milton Miller Cc: Takashi Iwai Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/slab.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/slab.h b/include/linux/slab.h index 9aa90a6f20e0..41103910f8a2 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -180,7 +180,7 @@ size_t ksize(const void *); */ static inline void *kcalloc(size_t n, size_t size, gfp_t flags) { - if (n != 0 && size > ULONG_MAX / n) + if (size != 0 && n > ULONG_MAX / size) return NULL; return __kmalloc(n * size, flags | __GFP_ZERO); } -- cgit v1.2.3 From 83d1674a946141c3c59d430e96c224f7937e6158 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Wed, 23 Jul 2008 21:28:22 -0700 Subject: mm: make CONFIG_MIGRATION available w/o CONFIG_NUMA We'd like to support CONFIG_MEMORY_HOTREMOVE on s390, which depends on CONFIG_MIGRATION. So far, CONFIG_MIGRATION is only available with NUMA support. This patch makes CONFIG_MIGRATION selectable for architectures that define ARCH_ENABLE_MEMORY_HOTREMOVE. When MIGRATION is enabled w/o NUMA, the kernel won't compile because migrate_vmas() does not know about vm_ops->migrate() and vma_migratable() does not know about policy_zone. To fix this, those two functions can be restricted to '#ifdef CONFIG_NUMA' because they are not being used w/o NUMA. vma_migratable() is moved over from migrate.h to mempolicy.h. [kosaki.motohiro@jp.fujitsu.com: build fix] Acked-by: Christoph Lameter Signed-off-by: Gerald Schaefer Cc: Martin Schwidefsky Cc: Heiko Carstens Signed-off-by: KOSAKI Motorhiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mempolicy.h | 19 +++++++++++++++++++ include/linux/migrate.h | 21 --------------------- mm/Kconfig | 2 +- mm/migrate.c | 2 +- 4 files changed, 21 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index 3a39570b81b8..085c903fe0f1 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -59,6 +59,7 @@ enum { #include #include #include +#include struct mm_struct; @@ -220,6 +221,24 @@ extern int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context); extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol, int no_context); #endif + +/* Check if a vma is migratable */ +static inline int vma_migratable(struct vm_area_struct *vma) +{ + if (vma->vm_flags & (VM_IO|VM_HUGETLB|VM_PFNMAP|VM_RESERVED)) + return 0; + /* + * Migration allocates pages in the highest zone. If we cannot + * do so then migration (at least from node to node) is not + * possible. + */ + if (vma->vm_file && + gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping)) + < policy_zone) + return 0; + return 1; +} + #else struct mempolicy {}; diff --git a/include/linux/migrate.h b/include/linux/migrate.h index e10a90a93b5d..03aea612d284 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -3,28 +3,10 @@ #include #include -#include typedef struct page *new_page_t(struct page *, unsigned long private, int **); #ifdef CONFIG_MIGRATION -/* Check if a vma is migratable */ -static inline int vma_migratable(struct vm_area_struct *vma) -{ - if (vma->vm_flags & (VM_IO|VM_HUGETLB|VM_PFNMAP|VM_RESERVED)) - return 0; - /* - * Migration allocates pages in the highest zone. If we cannot - * do so then migration (at least from node to node) is not - * possible. - */ - if (vma->vm_file && - gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping)) - < policy_zone) - return 0; - return 1; -} - extern int isolate_lru_page(struct page *p, struct list_head *pagelist); extern int putback_lru_pages(struct list_head *l); extern int migrate_page(struct address_space *, @@ -39,9 +21,6 @@ extern int migrate_vmas(struct mm_struct *mm, const nodemask_t *from, const nodemask_t *to, unsigned long flags); #else -static inline int vma_migratable(struct vm_area_struct *vma) - { return 0; } - static inline int isolate_lru_page(struct page *p, struct list_head *list) { return -ENOSYS; } static inline int putback_lru_pages(struct list_head *l) { return 0; } diff --git a/mm/Kconfig b/mm/Kconfig index c4de85285bb4..aa799007a11b 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -174,7 +174,7 @@ config SPLIT_PTLOCK_CPUS config MIGRATION bool "Page migration" def_bool y - depends on NUMA + depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE help Allows the migration of the physical location of pages of processes while the virtual addresses are not changed. This is useful for diff --git a/mm/migrate.c b/mm/migrate.c index e7d13a708da0..376cceba82f9 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1071,7 +1071,6 @@ out2: mmput(mm); return err; } -#endif /* * Call migration functions in the vma_ops that may prepare @@ -1093,3 +1092,4 @@ int migrate_vmas(struct mm_struct *mm, const nodemask_t *to, } return err; } +#endif -- cgit v1.2.3 From 5459c164f0591ee75ed0203bb8f3817f25948e2f Mon Sep 17 00:00:00 2001 From: "Andrew G. Morgan" Date: Wed, 23 Jul 2008 21:28:24 -0700 Subject: security: protect legacy applications from executing with insufficient privilege When cap_bset suppresses some of the forced (fP) capabilities of a file, it is generally only safe to execute the program if it understands how to recognize it doesn't have enough privilege to work correctly. For legacy applications (fE!=0), which have no non-destructive way to determine that they are missing privilege, we fail to execute (EPERM) any executable that requires fP capabilities, but would otherwise get pP' < fP. This is a fail-safe permission check. For some discussion of why it is problematic for (legacy) privileged applications to run with less than the set of capabilities requested for them, see: http://userweb.kernel.org/~morgan/sendmail-capabilities-war-story.html With this iteration of this support, we do not include setuid-0 based privilege protection from the bounding set. That is, the admin can still (ab)use the bounding set to suppress the privileges of a setuid-0 program. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: cleanup] Signed-off-by: Andrew G. Morgan Acked-by: Serge Hallyn Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/binfmts.h | 2 +- security/commoncap.c | 108 ++++++++++++++++++++++++++---------------------- 2 files changed, 60 insertions(+), 50 deletions(-) (limited to 'include') diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index ee0ed48e8348..826f62350805 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -38,7 +38,7 @@ struct linux_binprm{ misc_bang:1; struct file * file; int e_uid, e_gid; - kernel_cap_t cap_inheritable, cap_permitted; + kernel_cap_t cap_post_exec_permitted; bool cap_effective; void *security; int argc, envc; diff --git a/security/commoncap.c b/security/commoncap.c index 0b6537a3672d..4afbece37a08 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -162,8 +162,7 @@ void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, static inline void bprm_clear_caps(struct linux_binprm *bprm) { - cap_clear(bprm->cap_inheritable); - cap_clear(bprm->cap_permitted); + cap_clear(bprm->cap_post_exec_permitted); bprm->cap_effective = false; } @@ -198,6 +197,7 @@ static inline int cap_from_disk(struct vfs_cap_data *caps, { __u32 magic_etc; unsigned tocopy, i; + int ret; if (size < sizeof(magic_etc)) return -EINVAL; @@ -225,19 +225,40 @@ static inline int cap_from_disk(struct vfs_cap_data *caps, bprm->cap_effective = false; } - for (i = 0; i < tocopy; ++i) { - bprm->cap_permitted.cap[i] = - le32_to_cpu(caps->data[i].permitted); - bprm->cap_inheritable.cap[i] = - le32_to_cpu(caps->data[i].inheritable); - } - while (i < VFS_CAP_U32) { - bprm->cap_permitted.cap[i] = 0; - bprm->cap_inheritable.cap[i] = 0; - i++; + ret = 0; + + CAP_FOR_EACH_U32(i) { + __u32 value_cpu; + + if (i >= tocopy) { + /* + * Legacy capability sets have no upper bits + */ + bprm->cap_post_exec_permitted.cap[i] = 0; + continue; + } + /* + * pP' = (X & fP) | (pI & fI) + */ + value_cpu = le32_to_cpu(caps->data[i].permitted); + bprm->cap_post_exec_permitted.cap[i] = + (current->cap_bset.cap[i] & value_cpu) | + (current->cap_inheritable.cap[i] & + le32_to_cpu(caps->data[i].inheritable)); + if (value_cpu & ~bprm->cap_post_exec_permitted.cap[i]) { + /* + * insufficient to execute correctly + */ + ret = -EPERM; + } } - return 0; + /* + * For legacy apps, with no internal support for recognizing they + * do not have enough capabilities, we return an error if they are + * missing some "forced" (aka file-permitted) capabilities. + */ + return bprm->cap_effective ? ret : 0; } /* Locate any VFS capabilities: */ @@ -269,9 +290,9 @@ static int get_file_caps(struct linux_binprm *bprm) goto out; rc = cap_from_disk(&vcaps, bprm, rc); - if (rc) + if (rc == -EINVAL) printk(KERN_NOTICE "%s: cap_from_disk returned %d for %s\n", - __func__, rc, bprm->filename); + __func__, rc, bprm->filename); out: dput(dentry); @@ -304,25 +325,24 @@ int cap_bprm_set_security (struct linux_binprm *bprm) int ret; ret = get_file_caps(bprm); - if (ret) - printk(KERN_NOTICE "%s: get_file_caps returned %d for %s\n", - __func__, ret, bprm->filename); - - /* To support inheritance of root-permissions and suid-root - * executables under compatibility mode, we raise all three - * capability sets for the file. - * - * If only the real uid is 0, we only raise the inheritable - * and permitted sets of the executable file. - */ - if (!issecure (SECURE_NOROOT)) { + if (!issecure(SECURE_NOROOT)) { + /* + * To support inheritance of root-permissions and suid-root + * executables under compatibility mode, we override the + * capability sets for the file. + * + * If only the real uid is 0, we do not set the effective + * bit. + */ if (bprm->e_uid == 0 || current->uid == 0) { - cap_set_full (bprm->cap_inheritable); - cap_set_full (bprm->cap_permitted); + /* pP' = (cap_bset & ~0) | (pI & ~0) */ + bprm->cap_post_exec_permitted = cap_combine( + current->cap_bset, current->cap_inheritable + ); + bprm->cap_effective = (bprm->e_uid == 0); + ret = 0; } - if (bprm->e_uid == 0) - bprm->cap_effective = true; } return ret; @@ -330,17 +350,9 @@ int cap_bprm_set_security (struct linux_binprm *bprm) void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) { - /* Derived from fs/exec.c:compute_creds. */ - kernel_cap_t new_permitted, working; - - new_permitted = cap_intersect(bprm->cap_permitted, - current->cap_bset); - working = cap_intersect(bprm->cap_inheritable, - current->cap_inheritable); - new_permitted = cap_combine(new_permitted, working); - if (bprm->e_uid != current->uid || bprm->e_gid != current->gid || - !cap_issubset (new_permitted, current->cap_permitted)) { + !cap_issubset(bprm->cap_post_exec_permitted, + current->cap_permitted)) { set_dumpable(current->mm, suid_dumpable); current->pdeath_signal = 0; @@ -350,9 +362,9 @@ void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) bprm->e_gid = current->gid; } if (cap_limit_ptraced_target()) { - new_permitted = - cap_intersect(new_permitted, - current->cap_permitted); + bprm->cap_post_exec_permitted = cap_intersect( + bprm->cap_post_exec_permitted, + current->cap_permitted); } } } @@ -364,9 +376,9 @@ void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) * in the init_task struct. Thus we skip the usual * capability rules */ if (!is_global_init(current)) { - current->cap_permitted = new_permitted; + current->cap_permitted = bprm->cap_post_exec_permitted; if (bprm->cap_effective) - current->cap_effective = new_permitted; + current->cap_effective = bprm->cap_post_exec_permitted; else cap_clear(current->cap_effective); } @@ -381,9 +393,7 @@ int cap_bprm_secureexec (struct linux_binprm *bprm) if (current->uid != 0) { if (bprm->cap_effective) return 1; - if (!cap_isclear(bprm->cap_permitted)) - return 1; - if (!cap_isclear(bprm->cap_inheritable)) + if (!cap_isclear(bprm->cap_post_exec_permitted)) return 1; } -- cgit v1.2.3 From 9b3e43a747c74029b0acf6acf4666601f132f471 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 23 Jul 2008 21:28:26 -0700 Subject: security: remove unused forwards Why would linux/security.h need forward declarations for nfsctl_arg and swap_info_struct? It's hard to imagine: remove them. Signed-off-by: Hugh Dickins Acked-by: James Morris Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/security.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/security.h b/include/linux/security.h index 31c8851ec5d0..f0e9adb22ac2 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -102,9 +102,7 @@ extern unsigned long mmap_min_addr; #define LSM_SETID_FS 8 /* forward declares to avoid warnings */ -struct nfsctl_arg; struct sched_param; -struct swap_info_struct; struct request_sock; /* bprm_apply_creds unsafe reasons */ -- cgit v1.2.3 From e53f12cc6c43b69f54937f15c5706d83f67c2fdd Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 23 Jul 2008 21:28:28 -0700 Subject: remove include/asm-h8300/keyboard.h This patch removes the unused include/asm-h8300/keyboard.h Signed-off-by: Adrian Bunk Acked-by: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-h8300/keyboard.h | 24 ------------------------ 1 file changed, 24 deletions(-) delete mode 100644 include/asm-h8300/keyboard.h (limited to 'include') diff --git a/include/asm-h8300/keyboard.h b/include/asm-h8300/keyboard.h deleted file mode 100644 index 90efbd655390..000000000000 --- a/include/asm-h8300/keyboard.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * linux/include/asm-h8300/keyboard.h - * Created 04 Dec 2001 by Khaled Hassounah - * This file contains the Dragonball architecture specific keyboard definitions - */ - -#ifndef _H8300_KEYBOARD_H -#define _H8300_KEYBOARD_H - - -/* dummy i.e. no real keyboard */ -#define kbd_setkeycode(x...) (-ENOSYS) -#define kbd_getkeycode(x...) (-ENOSYS) -#define kbd_translate(x...) (0) -#define kbd_unexpected_up(x...) (1) -#define kbd_leds(x...) do {;} while (0) -#define kbd_init_hw(x...) do {;} while (0) -#define kbd_enable_irq(x...) do {;} while (0) -#define kbd_disable_irq(x...) do {;} while (0) - -#endif /* _H8300_KEYBOARD_H */ - - - -- cgit v1.2.3 From d75f65fd247fe85d90a3880d143b1bb22fe13a48 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 23 Jul 2008 21:28:34 -0700 Subject: remove include/linux/pm_legacy.h Remove the obsolete and no longer used include/linux/pm_legacy.h Reviewed-by: Robert P. J. Day Signed-off-by: Adrian Bunk Cc: Pavel Machek Acked-by: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/frv/kernel/pm.c | 1 - arch/mips/au1000/common/power.c | 1 - arch/x86/kernel/apm_32.c | 1 - include/linux/pm_legacy.h | 35 ----------------------------------- 4 files changed, 38 deletions(-) delete mode 100644 include/linux/pm_legacy.h (limited to 'include') diff --git a/arch/frv/kernel/pm.c b/arch/frv/kernel/pm.c index 73f3aeefd203..d1113c5031f5 100644 --- a/arch/frv/kernel/pm.c +++ b/arch/frv/kernel/pm.c @@ -14,7 +14,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/mips/au1000/common/power.c b/arch/mips/au1000/common/power.c index 2166b9e1e80c..bd854a6d1d89 100644 --- a/arch/mips/au1000/common/power.c +++ b/arch/mips/au1000/common/power.c @@ -31,7 +31,6 @@ #include #include -#include #include #include diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index bf9b441331e9..9ee24e6bc4b0 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -219,7 +219,6 @@ #include #include #include -#include #include #include #include diff --git a/include/linux/pm_legacy.h b/include/linux/pm_legacy.h deleted file mode 100644 index 446f4f42b952..000000000000 --- a/include/linux/pm_legacy.h +++ /dev/null @@ -1,35 +0,0 @@ -#ifndef __LINUX_PM_LEGACY_H__ -#define __LINUX_PM_LEGACY_H__ - - -#ifdef CONFIG_PM_LEGACY - -/* - * Register a device with power management - */ -struct pm_dev __deprecated * -pm_register(pm_dev_t type, unsigned long id, pm_callback callback); - -/* - * Send a request to all devices - */ -int __deprecated pm_send_all(pm_request_t rqst, void *data); - -#else /* CONFIG_PM_LEGACY */ - -static inline struct pm_dev *pm_register(pm_dev_t type, - unsigned long id, - pm_callback callback) -{ - return NULL; -} - -static inline int pm_send_all(pm_request_t rqst, void *data) -{ - return 0; -} - -#endif /* CONFIG_PM_LEGACY */ - -#endif /* __LINUX_PM_LEGACY_H__ */ - -- cgit v1.2.3 From 558481f038e587b22d02167af58914c814ce9de5 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Jul 2008 21:28:35 -0700 Subject: pm: remove definition of struct pm_dev Remove the definition of 'struct pm_dev', which is not used any more, along with some related stuff from include/linux/pm.h . Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pm.h | 24 ------------------------ 1 file changed, 24 deletions(-) (limited to 'include') diff --git a/include/linux/pm.h b/include/linux/pm.h index 4ad9de94449a..5bf1ce89cfbb 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -68,30 +68,6 @@ enum */ #define PM_PCI_ID(dev) ((dev)->bus->number << 16 | (dev)->devfn) -/* - * Request handler callback - */ -struct pm_dev; - -typedef int (*pm_callback)(struct pm_dev *dev, pm_request_t rqst, void *data); - -/* - * Dynamic device information - */ -struct pm_dev -{ - pm_dev_t type; - unsigned long id; - pm_callback callback; - void *data; - - unsigned long flags; - unsigned long state; - unsigned long prev_state; - - struct list_head entry; -}; - /* Functions above this comment are list-based old-style power * management. Please avoid using them. */ -- cgit v1.2.3 From e7ecb331e11d1f7aa66aeef9170fc20781c9bb55 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Jul 2008 21:28:35 -0700 Subject: pm: remove remaining obsolete definitions from pm.h Remove the remaining obsolete definitions from include/linux/pm.h and move the definitions of PM_SUSPEND and PM_RESUME to the header of h3600 which is the only user of them. Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-arm/arch-sa1100/h3600.h | 5 ++++ include/linux/pm.h | 46 ------------------------------------- 2 files changed, 5 insertions(+), 46 deletions(-) (limited to 'include') diff --git a/include/asm-arm/arch-sa1100/h3600.h b/include/asm-arm/arch-sa1100/h3600.h index 1b6355971574..3ca0ecf095e6 100644 --- a/include/asm-arm/arch-sa1100/h3600.h +++ b/include/asm-arm/arch-sa1100/h3600.h @@ -23,6 +23,11 @@ #ifndef _INCLUDE_H3600_H_ #define _INCLUDE_H3600_H_ +typedef int __bitwise pm_request_t; + +#define PM_SUSPEND ((__force pm_request_t) 1) /* enter D1-D3 */ +#define PM_RESUME ((__force pm_request_t) 2) /* enter D0 */ + /* generalized support for H3xxx series Compaq Pocket PC's */ #define machine_is_h3xxx() (machine_is_h3100() || machine_is_h3600() || machine_is_h3800()) diff --git a/include/linux/pm.h b/include/linux/pm.h index 5bf1ce89cfbb..390dd95a375e 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -25,52 +25,6 @@ #include #include -/* - * Power management requests... these are passed to pm_send_all() and friends. - * - * these functions are old and deprecated, see below. - */ -typedef int __bitwise pm_request_t; - -#define PM_SUSPEND ((__force pm_request_t) 1) /* enter D1-D3 */ -#define PM_RESUME ((__force pm_request_t) 2) /* enter D0 */ - - -/* - * Device types... these are passed to pm_register - */ -typedef int __bitwise pm_dev_t; - -#define PM_UNKNOWN_DEV ((__force pm_dev_t) 0) /* generic */ -#define PM_SYS_DEV ((__force pm_dev_t) 1) /* system device (fan, KB controller, ...) */ -#define PM_PCI_DEV ((__force pm_dev_t) 2) /* PCI device */ -#define PM_USB_DEV ((__force pm_dev_t) 3) /* USB device */ -#define PM_SCSI_DEV ((__force pm_dev_t) 4) /* SCSI device */ -#define PM_ISA_DEV ((__force pm_dev_t) 5) /* ISA device */ -#define PM_MTD_DEV ((__force pm_dev_t) 6) /* Memory Technology Device */ - -/* - * System device hardware ID (PnP) values - */ -enum -{ - PM_SYS_UNKNOWN = 0x00000000, /* generic */ - PM_SYS_KBC = 0x41d00303, /* keyboard controller */ - PM_SYS_COM = 0x41d00500, /* serial port */ - PM_SYS_IRDA = 0x41d00510, /* IRDA controller */ - PM_SYS_FDC = 0x41d00700, /* floppy controller */ - PM_SYS_VGA = 0x41d00900, /* VGA controller */ - PM_SYS_PCMCIA = 0x41d00e00, /* PCMCIA controller */ -}; - -/* - * Device identifier - */ -#define PM_PCI_ID(dev) ((dev)->bus->number << 16 | (dev)->devfn) - -/* Functions above this comment are list-based old-style power - * management. Please avoid using them. */ - /* * Callbacks for platform drivers to implement. */ -- cgit v1.2.3 From 8c363265d57d755e62053e9f69a1f2164e83f7ea Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Jul 2008 21:28:37 -0700 Subject: pm: drop unnecessary includes from pm.h Drop unnecessary includes from include/linux/pm.h . Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pm.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/pm.h b/include/linux/pm.h index 390dd95a375e..ed98d967f9fb 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -22,8 +22,6 @@ #define _LINUX_PM_H #include -#include -#include /* * Callbacks for platform drivers to implement. -- cgit v1.2.3 From 8111d1b552349921aae1acf73e4e8cea98e80970 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 23 Jul 2008 21:28:37 -0700 Subject: pm: add new PM_EVENT codes for runtime power transitions This patch (as1112) adds some new PM_EVENT_* codes for use by kernel subsystems. They describe runtime power-state transitions of the sort already implemented by the USB subsystem. Signed-off-by: Alan Stern Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pm.h | 37 +++++++++++++++++++++++++++++++++++-- 1 file changed, 35 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/pm.h b/include/linux/pm.h index ed98d967f9fb..4dcce54b6d76 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -245,6 +245,21 @@ struct pm_ext_ops { * RECOVER Creation of a hibernation image or restoration of the main * memory contents from a hibernation image has failed, call * ->thaw() and ->complete() for all devices. + * + * The following PM_EVENT_ messages are defined for internal use by + * kernel subsystems. They are never issued by the PM core. + * + * USER_SUSPEND Manual selective suspend was issued by userspace. + * + * USER_RESUME Manual selective resume was issued by userspace. + * + * REMOTE_WAKEUP Remote-wakeup request was received from the device. + * + * AUTO_SUSPEND Automatic (device idle) runtime suspend was + * initiated by the subsystem. + * + * AUTO_RESUME Automatic (device needed) runtime resume was + * requested by a driver. */ #define PM_EVENT_ON 0x0000 @@ -256,9 +271,18 @@ struct pm_ext_ops { #define PM_EVENT_THAW 0x0020 #define PM_EVENT_RESTORE 0x0040 #define PM_EVENT_RECOVER 0x0080 +#define PM_EVENT_USER 0x0100 +#define PM_EVENT_REMOTE 0x0200 +#define PM_EVENT_AUTO 0x0400 -#define PM_EVENT_SLEEP (PM_EVENT_SUSPEND | PM_EVENT_HIBERNATE) +#define PM_EVENT_SLEEP (PM_EVENT_SUSPEND | PM_EVENT_HIBERNATE) +#define PM_EVENT_USER_SUSPEND (PM_EVENT_USER | PM_EVENT_SUSPEND) +#define PM_EVENT_USER_RESUME (PM_EVENT_USER | PM_EVENT_RESUME) +#define PM_EVENT_REMOTE_WAKEUP (PM_EVENT_REMOTE | PM_EVENT_RESUME) +#define PM_EVENT_AUTO_SUSPEND (PM_EVENT_AUTO | PM_EVENT_SUSPEND) +#define PM_EVENT_AUTO_RESUME (PM_EVENT_AUTO | PM_EVENT_RESUME) +#define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, }) #define PMSG_FREEZE ((struct pm_message){ .event = PM_EVENT_FREEZE, }) #define PMSG_QUIESCE ((struct pm_message){ .event = PM_EVENT_QUIESCE, }) #define PMSG_SUSPEND ((struct pm_message){ .event = PM_EVENT_SUSPEND, }) @@ -267,7 +291,16 @@ struct pm_ext_ops { #define PMSG_THAW ((struct pm_message){ .event = PM_EVENT_THAW, }) #define PMSG_RESTORE ((struct pm_message){ .event = PM_EVENT_RESTORE, }) #define PMSG_RECOVER ((struct pm_message){ .event = PM_EVENT_RECOVER, }) -#define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, }) +#define PMSG_USER_SUSPEND ((struct pm_messge) \ + { .event = PM_EVENT_USER_SUSPEND, }) +#define PMSG_USER_RESUME ((struct pm_messge) \ + { .event = PM_EVENT_USER_RESUME, }) +#define PMSG_REMOTE_RESUME ((struct pm_messge) \ + { .event = PM_EVENT_REMOTE_RESUME, }) +#define PMSG_AUTO_SUSPEND ((struct pm_messge) \ + { .event = PM_EVENT_AUTO_SUSPEND, }) +#define PMSG_AUTO_RESUME ((struct pm_messge) \ + { .event = PM_EVENT_AUTO_RESUME, }) /** * Device power management states -- cgit v1.2.3 From c1a220e7acf8ad2c03504891f4a70cd9c32c904b Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 23 Jul 2008 21:28:39 -0700 Subject: pm: introduce new interfaces schedule_work_on() and queue_work_on() This interface allows adding a job on a specific cpu. Although a work struct on a cpu will be scheduled to other cpu if the cpu dies, there is a recursion if a work task tries to offline the cpu it's running on. we need to schedule the task to a specific cpu in this case. http://bugzilla.kernel.org/show_bug.cgi?id=10897 [oleg@tv-sign.ru: cleanups] Signed-off-by: Zhang Rui Tested-by: Rus Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/workqueue.h | 3 +++ kernel/workqueue.c | 39 ++++++++++++++++++++++++++++++++++++++- 2 files changed, 41 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 542526c6e8ef..14d47120682b 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -179,6 +179,8 @@ __create_workqueue_key(const char *name, int singlethread, extern void destroy_workqueue(struct workqueue_struct *wq); extern int queue_work(struct workqueue_struct *wq, struct work_struct *work); +extern int queue_work_on(int cpu, struct workqueue_struct *wq, + struct work_struct *work); extern int queue_delayed_work(struct workqueue_struct *wq, struct delayed_work *work, unsigned long delay); extern int queue_delayed_work_on(int cpu, struct workqueue_struct *wq, @@ -188,6 +190,7 @@ extern void flush_workqueue(struct workqueue_struct *wq); extern void flush_scheduled_work(void); extern int schedule_work(struct work_struct *work); +extern int schedule_work_on(int cpu, struct work_struct *work); extern int schedule_delayed_work(struct delayed_work *work, unsigned long delay); extern int schedule_delayed_work_on(int cpu, struct delayed_work *work, unsigned long delay); diff --git a/kernel/workqueue.c b/kernel/workqueue.c index a6d36346d10a..6fd158b21026 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -140,7 +140,6 @@ static void insert_work(struct cpu_workqueue_struct *cwq, wake_up(&cwq->more_work); } -/* Preempt must be disabled. */ static void __queue_work(struct cpu_workqueue_struct *cwq, struct work_struct *work) { @@ -175,6 +174,31 @@ int queue_work(struct workqueue_struct *wq, struct work_struct *work) } EXPORT_SYMBOL_GPL(queue_work); +/** + * queue_work_on - queue work on specific cpu + * @cpu: CPU number to execute work on + * @wq: workqueue to use + * @work: work to queue + * + * Returns 0 if @work was already on a queue, non-zero otherwise. + * + * We queue the work to a specific CPU, the caller must ensure it + * can't go away. + */ +int +queue_work_on(int cpu, struct workqueue_struct *wq, struct work_struct *work) +{ + int ret = 0; + + if (!test_and_set_bit(WORK_STRUCT_PENDING, work_data_bits(work))) { + BUG_ON(!list_empty(&work->entry)); + __queue_work(wq_per_cpu(wq, cpu), work); + ret = 1; + } + return ret; +} +EXPORT_SYMBOL_GPL(queue_work_on); + static void delayed_work_timer_fn(unsigned long __data) { struct delayed_work *dwork = (struct delayed_work *)__data; @@ -553,6 +577,19 @@ int schedule_work(struct work_struct *work) } EXPORT_SYMBOL(schedule_work); +/* + * schedule_work_on - put work task on a specific cpu + * @cpu: cpu to put the work task on + * @work: job to be done + * + * This puts a job on a specific cpu + */ +int schedule_work_on(int cpu, struct work_struct *work) +{ + return queue_work_on(cpu, keventd_wq, work); +} +EXPORT_SYMBOL(schedule_work_on); + /** * schedule_delayed_work - put work task in global workqueue after delay * @dwork: job to be done -- cgit v1.2.3 From bdfe6b7c681669148dae4db27eb24ee5408ba371 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Wed, 23 Jul 2008 21:28:41 -0700 Subject: pm: acpi hibernation: utilize hardware signature ACPI defines a hardware signature. BIOS calculates the signature according to hardware configure and if hardware changes while hibernated, the signature will change. In that case, S4 resume should fail. Still, there may be systems on which this mechanism does not work correctly, so it is better to provide a workaround for them. For this reason, add a new switch to the acpi_sleep= command line argument allowing one to disable hardware signature checking. [shaohua.li@intel.com: build fix] Signed-off-by: Shaohua Li Signed-off-by: Rafael J. Wysocki Cc: Andi Kleen Cc: Len Brown Acked-by: Pavel Machek Cc: Cc: Shaohua Li Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/kernel-parameters.txt | 4 +++- arch/x86/kernel/acpi/sleep.c | 4 ++++ drivers/acpi/sleep/main.c | 22 ++++++++++++++++++++++ include/linux/acpi.h | 1 + 4 files changed, 30 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 4d705713cabc..497a98dafdaa 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -148,10 +148,12 @@ and is between 256 and 4096 characters. It is defined in the file default: 0 acpi_sleep= [HW,ACPI] Sleep options - Format: { s3_bios, s3_mode, s3_beep, old_ordering } + Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, old_ordering } See Documentation/power/video.txt for s3_bios and s3_mode. s3_beep is for debugging; it makes the PC's speaker beep as soon as the kernel's real-mode entry point is called. + s4_nohwsig prevents ACPI hardware signature from being + used during resume from hibernation. old_ordering causes the ACPI 1.0 ordering of the _PTS control method, wrt putting devices into low power states, to be enforced (the ACPI 2.0 ordering of _PTS is diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index a3ddad18aaa3..fa2161d5003b 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -150,6 +150,10 @@ static int __init acpi_sleep_setup(char *str) acpi_realmode_flags |= 2; if (strncmp(str, "s3_beep", 7) == 0) acpi_realmode_flags |= 4; +#ifdef CONFIG_HIBERNATION + if (strncmp(str, "s4_nohwsig", 10) == 0) + acpi_no_s4_hw_signature(); +#endif if (strncmp(str, "old_ordering", 12) == 0) acpi_old_suspend_ordering(); str = strchr(str, ','); diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 0489a7d1d42c..313507accf18 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -283,6 +283,15 @@ static struct platform_suspend_ops acpi_suspend_ops_old = { #endif /* CONFIG_SUSPEND */ #ifdef CONFIG_HIBERNATION +static unsigned long s4_hardware_signature; +static struct acpi_table_facs *facs; +static bool nosigcheck; + +void __init acpi_no_s4_hw_signature(void) +{ + nosigcheck = true; +} + static int acpi_hibernation_begin(void) { acpi_target_sleep_state = ACPI_STATE_S4; @@ -316,6 +325,12 @@ static void acpi_hibernation_leave(void) acpi_enable(); /* Reprogram control registers and execute _BFS */ acpi_leave_sleep_state_prep(ACPI_STATE_S4); + /* Check the hardware signature */ + if (facs && s4_hardware_signature != facs->hardware_signature) { + printk(KERN_EMERG "ACPI: Hardware changed while hibernated, " + "cannot resume!\n"); + panic("ACPI S4 hardware signature mismatch"); + } } static void acpi_pm_enable_gpes(void) @@ -544,6 +559,13 @@ int __init acpi_sleep_init(void) &acpi_hibernation_ops_old : &acpi_hibernation_ops); sleep_states[ACPI_STATE_S4] = 1; printk(" S4"); + if (!nosigcheck) { + acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS, + (struct acpi_table_header **)&facs); + if (facs) + s4_hardware_signature = + facs->hardware_signature; + } } #endif status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index a17177639376..702f79dad16a 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -236,6 +236,7 @@ int acpi_check_mem_region(resource_size_t start, resource_size_t n, const char *name); #ifdef CONFIG_PM_SLEEP +void __init acpi_no_s4_hw_signature(void); void __init acpi_old_suspend_ordering(void); #endif /* CONFIG_PM_SLEEP */ #else /* CONFIG_ACPI */ -- cgit v1.2.3 From 912019572180f287e85b5534fbb1c1e3ca6df6c9 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 23 Jul 2008 21:28:45 -0700 Subject: mn10300: move sg_dma_{address,len}() to asm/scatterlist.h mn10300 was the only architecture where sg_dma_{address,len}() were not in asm/scatterlist.h, and it's not a big surprise that this caused a compile error somewhere: /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/media/video/videobuf-dma-sg.c: In function `videobuf_dma_map': /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/media/video/videobuf-dma-sg.c:238: error: implicit declaration of function 'sg_dma_address' Acked-by: David Howells Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-mn10300/pci.h | 9 --------- include/asm-mn10300/scatterlist.h | 9 +++++++++ 2 files changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/asm-mn10300/pci.h b/include/asm-mn10300/pci.h index 205192c52bb5..cd9cc5c89cea 100644 --- a/include/asm-mn10300/pci.h +++ b/include/asm-mn10300/pci.h @@ -74,15 +74,6 @@ struct pci_dev; /* This is always fine. */ #define pci_dac_dma_supported(pci_dev, mask) (0) -/* - * These macros should be used after a pci_map_sg call has been done - * to get bus addresses of each of the SG entries and their lengths. - * You should only work with the number of sg entries pci_map_sg - * returns. - */ -#define sg_dma_address(sg) ((sg)->dma_address) -#define sg_dma_len(sg) ((sg)->length) - /* Return the index of the PCI controller for device. */ static inline int pci_controller_num(struct pci_dev *dev) { diff --git a/include/asm-mn10300/scatterlist.h b/include/asm-mn10300/scatterlist.h index e29d91dbcf2b..67535901b9ff 100644 --- a/include/asm-mn10300/scatterlist.h +++ b/include/asm-mn10300/scatterlist.h @@ -43,4 +43,13 @@ struct scatterlist { #define ISA_DMA_THRESHOLD (0x00ffffff) +/* + * These macros should be used after a pci_map_sg call has been done + * to get bus addresses of each of the SG entries and their lengths. + * You should only work with the number of sg entries pci_map_sg + * returns. + */ +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->length) + #endif /* _ASM_SCATTERLIST_H */ -- cgit v1.2.3 From d50004b0867a59f8a81116f000edb352595343d9 Mon Sep 17 00:00:00 2001 From: Fernando Luis Vazquez Cao Date: Wed, 23 Jul 2008 21:28:45 -0700 Subject: cris: remove unused global_flush_tlb global_flush_tlb is declared but never used. Signed-off-by: Fernando Luis Vazquez Cao Cc: Mikael Starvik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-cris/cacheflush.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/asm-cris/cacheflush.h b/include/asm-cris/cacheflush.h index 01af2de27c5b..cf60e3f69f8d 100644 --- a/include/asm-cris/cacheflush.h +++ b/include/asm-cris/cacheflush.h @@ -26,7 +26,6 @@ #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ memcpy(dst, src, len) -void global_flush_tlb(void); int change_page_attr(struct page *page, int numpages, pgprot_t prot); #endif /* _CRIS_CACHEFLUSH_H */ -- cgit v1.2.3 From 4a5675820436e4ad738dd442c1cc8a165101509b Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Wed, 23 Jul 2008 21:28:49 -0700 Subject: arch/um/kernel/mem.c: remove arch_validate() - Remove arch_validate(), because no one uses it. - Remove useless macro HAVE_ARCH_VALIDATE. - Make the variable 'empty_bad_page' static. Cc: Jeff Dike Signed-off-by: WANG Cong Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/ksyms.c | 1 - arch/um/kernel/mem.c | 33 +-------------------------------- include/asm-um/page.h | 3 --- 3 files changed, 1 insertion(+), 36 deletions(-) (limited to 'include') diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c index ccc02a616c22..836fc9b94707 100644 --- a/arch/um/kernel/ksyms.c +++ b/arch/um/kernel/ksyms.c @@ -18,7 +18,6 @@ EXPORT_SYMBOL(get_signals); EXPORT_SYMBOL(kernel_thread); EXPORT_SYMBOL(sys_waitpid); EXPORT_SYMBOL(flush_tlb_range); -EXPORT_SYMBOL(arch_validate); EXPORT_SYMBOL(high_physmem); EXPORT_SYMBOL(empty_zero_page); diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index b0ee64622ff7..e2274ef3155d 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -21,7 +21,7 @@ /* allocated in paging_init, zeroed in mem_init, and unchanged thereafter */ unsigned long *empty_zero_page = NULL; /* allocated in paging_init and unchanged thereafter */ -unsigned long *empty_bad_page = NULL; +static unsigned long *empty_bad_page = NULL; /* * Initialized during boot, and readonly for initializing page tables @@ -240,37 +240,6 @@ void __init paging_init(void) #endif } -struct page *arch_validate(struct page *page, gfp_t mask, int order) -{ - unsigned long addr, zero = 0; - int i; - - again: - if (page == NULL) - return page; - if (PageHighMem(page)) - return page; - - addr = (unsigned long) page_address(page); - for (i = 0; i < (1 << order); i++) { - current->thread.fault_addr = (void *) addr; - if (__do_copy_to_user((void __user *) addr, &zero, - sizeof(zero), - ¤t->thread.fault_addr, - ¤t->thread.fault_catcher)) { - if (!(mask & __GFP_WAIT)) - return NULL; - else break; - } - addr += PAGE_SIZE; - } - - if (i == (1 << order)) - return page; - page = alloc_pages(mask, order); - goto again; -} - /* * This can't do anything because nothing in the kernel image can be freed * since it's not in kernel physical memory. diff --git a/include/asm-um/page.h b/include/asm-um/page.h index 335c57383c02..a6df1f13d732 100644 --- a/include/asm-um/page.h +++ b/include/asm-um/page.h @@ -115,9 +115,6 @@ extern unsigned long uml_physmem; #define pfn_valid(pfn) ((pfn) < max_mapnr) #define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v))) -extern struct page *arch_validate(struct page *page, gfp_t mask, int order); -#define HAVE_ARCH_VALIDATE - #include #include -- cgit v1.2.3 From 99764fa4ceeecba8b9e0a8a5565b418a2e94f83b Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Wed, 23 Jul 2008 21:28:49 -0700 Subject: UML: make several more things static - Make some variables and functions static, since they don't need to be global. - Remove an unused function - arch/um/kernel/time.c::sched_clock(). - Clean the style a bit as complained by checkpatch.pl. Cc: Jeff Dike Signed-off-by: WANG Cong Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/skas/skas.h | 1 - arch/um/include/um_uaccess.h | 1 - arch/um/kernel/physmem.c | 2 +- arch/um/kernel/ptrace.c | 2 +- arch/um/kernel/time.c | 8 -------- arch/um/kernel/uaccess.c | 2 +- arch/um/os-Linux/sigio.c | 2 +- arch/um/os-Linux/signal.c | 2 +- arch/um/os-Linux/skas/process.c | 2 +- arch/um/os-Linux/umid.c | 2 +- arch/um/sys-i386/bugs.c | 2 +- arch/um/sys-i386/checksum.S | 5 ++--- arch/um/sys-i386/ldt.c | 4 ++-- include/asm-um/ptrace-generic.h | 3 --- 14 files changed, 12 insertions(+), 26 deletions(-) (limited to 'include') diff --git a/arch/um/include/skas/skas.h b/arch/um/include/skas/skas.h index b073f8a86bd3..64d2c7443306 100644 --- a/arch/um/include/skas/skas.h +++ b/arch/um/include/skas/skas.h @@ -16,7 +16,6 @@ extern int user_thread(unsigned long stack, int flags); extern void new_thread_handler(void); extern void handle_syscall(struct uml_pt_regs *regs); extern int new_mm(unsigned long stack); -extern void get_skas_faultinfo(int pid, struct faultinfo * fi); extern long execute_syscall_skas(void *r); extern unsigned long current_stub_stack(void); diff --git a/arch/um/include/um_uaccess.h b/arch/um/include/um_uaccess.h index 2b6fc8e0f071..45c04999d670 100644 --- a/arch/um/include/um_uaccess.h +++ b/arch/um/include/um_uaccess.h @@ -34,7 +34,6 @@ extern int copy_to_user(void __user *to, const void *from, int n); extern int __do_copy_to_user(void *to, const void *from, int n, void **fault_addr, jmp_buf **fault_catcher); -extern void __do_copy(void *to, const void *from, int n); /* * strncpy_from_user: - Copy a NUL terminated string from userspace. diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c index 9757085a0220..a1a9090254c2 100644 --- a/arch/um/kernel/physmem.c +++ b/arch/um/kernel/physmem.c @@ -185,7 +185,7 @@ unsigned long find_iomem(char *driver, unsigned long *len_out) return 0; } -int setup_iomem(void) +static int setup_iomem(void) { struct iomem_region *region = iomem_regions; unsigned long iomem_start = high_physmem + PAGE_SIZE; diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index 47b57b497d55..15e8b7c4de13 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -225,7 +225,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) return ret; } -void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs, +static void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs, int error_code) { struct siginfo info; diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index c3e2f369c33c..47f04f4a3464 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c @@ -13,14 +13,6 @@ #include "kern_util.h" #include "os.h" -/* - * Scheduler clock - returns current time in nanosec units. - */ -unsigned long long sched_clock(void) -{ - return (unsigned long long)jiffies_64 * (NSEC_PER_SEC / HZ); -} - void timer_handler(int sig, struct uml_pt_regs *regs) { unsigned long flags; diff --git a/arch/um/kernel/uaccess.c b/arch/um/kernel/uaccess.c index f0f4b040d7c5..dd33f040c526 100644 --- a/arch/um/kernel/uaccess.c +++ b/arch/um/kernel/uaccess.c @@ -12,7 +12,7 @@ #include #include "os.h" -void __do_copy(void *to, const void *from, int n) +static void __do_copy(void *to, const void *from, int n) { memcpy(to, from, n); } diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index eb8f2e4be192..63d299df152b 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -530,7 +530,7 @@ static void tty_close(int master, int slave) printk(UM_KERN_CONT "No, enabling workaround\n"); } -void __init check_sigio(void) +static void __init check_sigio(void) { if ((access("/dev/ptmx", R_OK) < 0) && (access("/dev/ptyp0", R_OK) < 0)) { diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index 5aade6027e40..6ae180703a63 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -126,7 +126,7 @@ void set_sigstack(void *sig_stack, int size) panic("enabling signal stack failed, errno = %d\n", errno); } -void (*handlers[_NSIG])(int sig, struct sigcontext *sc); +static void (*handlers[_NSIG])(int sig, struct sigcontext *sc); void handle_signal(int sig, struct sigcontext *sc) { diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 172ad8f72e12..d6e0a2234b86 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -96,7 +96,7 @@ bad_wait: extern unsigned long current_stub_stack(void); -void get_skas_faultinfo(int pid, struct faultinfo * fi) +static void get_skas_faultinfo(int pid, struct faultinfo *fi) { int err; diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c index 106fa8641553..a27defb81884 100644 --- a/arch/um/os-Linux/umid.c +++ b/arch/um/os-Linux/umid.c @@ -245,7 +245,7 @@ int __init set_umid(char *name) /* Changed in make_umid, which is called during early boot */ static int umid_setup = 0; -int __init make_umid(void) +static int __init make_umid(void) { int fd, err; char tmp[256]; diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c index a74442d13762..2c6d0d731c12 100644 --- a/arch/um/sys-i386/bugs.c +++ b/arch/um/sys-i386/bugs.c @@ -12,7 +12,7 @@ #include "sysdep/ptrace.h" /* Set during early boot */ -int host_has_cmov = 1; +static int host_has_cmov = 1; static jmp_buf cmov_test_return; static void cmov_sigill_test_handler(int sig) diff --git a/arch/um/sys-i386/checksum.S b/arch/um/sys-i386/checksum.S index 62c7e564f22e..f058d2f82e18 100644 --- a/arch/um/sys-i386/checksum.S +++ b/arch/um/sys-i386/checksum.S @@ -243,13 +243,12 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst, .previous .align 4 -.globl csum_partial_copy_generic_i386 - + #ifndef CONFIG_X86_USE_PPRO_CHECKSUM #define ARGBASE 16 #define FP 12 - + csum_partial_copy_generic_i386: subl $4,%esp pushl %edi diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c index a34263e6b08d..a4846a84a7be 100644 --- a/arch/um/sys-i386/ldt.c +++ b/arch/um/sys-i386/ldt.c @@ -14,8 +14,8 @@ extern int modify_ldt(int func, void *ptr, unsigned long bytecount); -long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc, - void **addr, int done) +static long write_ldt_entry(struct mm_id *mm_idp, int func, + struct user_desc *desc, void **addr, int done) { long res; diff --git a/include/asm-um/ptrace-generic.h b/include/asm-um/ptrace-generic.h index 6aefcd32fc61..315749705ea1 100644 --- a/include/asm-um/ptrace-generic.h +++ b/include/asm-um/ptrace-generic.h @@ -47,9 +47,6 @@ extern int set_fpregs(struct user_i387_struct __user *buf, extern void show_regs(struct pt_regs *regs); -extern void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs, - int error_code); - extern int arch_copy_tls(struct task_struct *new); extern void clear_flushed_tls(struct task_struct *task); -- cgit v1.2.3 From f606ddf42fd4edc558eeb48bfee66d2c591571d2 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 23 Jul 2008 21:28:50 -0700 Subject: remove the v850 port Trying to compile the v850 port brings many compile errors, one of them exists since at least kernel 2.6.19. There also seems to be noone willing to bring this port back into a usable state. This patch therefore removes the v850 port. If anyone ever decides to revive the v850 port the code will still be available from older kernels, and it wouldn't be impossible for the port to reenter the kernel if it would become actively maintained again. Signed-off-by: Adrian Bunk Acked-by: Greg Ungerer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 3 - arch/v850/Kconfig | 353 ---------- arch/v850/Kconfig.debug | 10 - arch/v850/Makefile | 54 -- arch/v850/README | 44 -- arch/v850/configs/rte-ma1-cb_defconfig | 617 ------------------ arch/v850/configs/rte-me2-cb_defconfig | 462 ------------- arch/v850/configs/sim_defconfig | 451 ------------- arch/v850/kernel/Makefile | 40 -- arch/v850/kernel/anna-rom.ld | 16 - arch/v850/kernel/anna.c | 202 ------ arch/v850/kernel/anna.ld | 20 - arch/v850/kernel/as85ep1-rom.ld | 21 - arch/v850/kernel/as85ep1.c | 234 ------- arch/v850/kernel/as85ep1.ld | 49 -- arch/v850/kernel/asm-offsets.c | 58 -- arch/v850/kernel/bug.c | 142 ---- arch/v850/kernel/entry.S | 1121 -------------------------------- arch/v850/kernel/fpga85e2c.c | 167 ----- arch/v850/kernel/fpga85e2c.ld | 62 -- arch/v850/kernel/gbus_int.c | 271 -------- arch/v850/kernel/head.S | 128 ---- arch/v850/kernel/highres_timer.c | 132 ---- arch/v850/kernel/init_task.c | 48 -- arch/v850/kernel/intv.S | 87 --- arch/v850/kernel/irq.c | 123 ---- arch/v850/kernel/ma.c | 69 -- arch/v850/kernel/mach.c | 17 - arch/v850/kernel/mach.h | 56 -- arch/v850/kernel/me2.c | 73 --- arch/v850/kernel/memcons.c | 135 ---- arch/v850/kernel/module.c | 237 ------- arch/v850/kernel/process.c | 217 ------- arch/v850/kernel/procfs.c | 67 -- arch/v850/kernel/ptrace.c | 235 ------- arch/v850/kernel/rte_cb.c | 193 ------ arch/v850/kernel/rte_cb_leds.c | 137 ---- arch/v850/kernel/rte_cb_multi.c | 121 ---- arch/v850/kernel/rte_ma1_cb-rom.ld | 14 - arch/v850/kernel/rte_ma1_cb.c | 107 --- arch/v850/kernel/rte_ma1_cb.ld | 57 -- arch/v850/kernel/rte_mb_a_pci.c | 819 ----------------------- arch/v850/kernel/rte_me2_cb.c | 298 --------- arch/v850/kernel/rte_me2_cb.ld | 30 - arch/v850/kernel/rte_nb85e_cb-multi.ld | 57 -- arch/v850/kernel/rte_nb85e_cb.c | 81 --- arch/v850/kernel/rte_nb85e_cb.ld | 22 - arch/v850/kernel/setup.c | 329 ---------- arch/v850/kernel/signal.c | 523 --------------- arch/v850/kernel/sim.c | 172 ----- arch/v850/kernel/sim.ld | 13 - arch/v850/kernel/sim85e2.c | 195 ------ arch/v850/kernel/sim85e2.ld | 36 - arch/v850/kernel/simcons.c | 161 ----- arch/v850/kernel/syscalls.c | 196 ------ arch/v850/kernel/teg.c | 62 -- arch/v850/kernel/time.c | 106 --- arch/v850/kernel/v850_ksyms.c | 51 -- arch/v850/kernel/v850e2_cache.c | 127 ---- arch/v850/kernel/v850e_cache.c | 174 ----- arch/v850/kernel/v850e_intc.c | 104 --- arch/v850/kernel/v850e_timer_d.c | 54 -- arch/v850/kernel/v850e_utils.c | 62 -- arch/v850/kernel/vmlinux.lds.S | 306 --------- arch/v850/lib/Makefile | 6 - arch/v850/lib/ashldi3.c | 62 -- arch/v850/lib/ashrdi3.c | 63 -- arch/v850/lib/checksum.c | 155 ----- arch/v850/lib/lshrdi3.c | 62 -- arch/v850/lib/memcpy.c | 92 --- arch/v850/lib/memset.c | 68 -- arch/v850/lib/muldi3.c | 61 -- arch/v850/lib/negdi2.c | 25 - drivers/serial/Kconfig | 16 - drivers/watchdog/Kconfig | 2 - drivers/watchdog/Makefile | 2 - include/asm-v850/Kbuild | 1 - include/asm-v850/a.out.h | 21 - include/asm-v850/anna.h | 137 ---- include/asm-v850/as85ep1.h | 152 ----- include/asm-v850/asm.h | 32 - include/asm-v850/atomic.h | 131 ---- include/asm-v850/auxvec.h | 4 - include/asm-v850/bitops.h | 161 ----- include/asm-v850/bug.h | 25 - include/asm-v850/bugs.h | 16 - include/asm-v850/byteorder.h | 48 -- include/asm-v850/cache.h | 26 - include/asm-v850/cacheflush.h | 70 -- include/asm-v850/checksum.h | 112 ---- include/asm-v850/clinkage.h | 26 - include/asm-v850/cputime.h | 6 - include/asm-v850/current.h | 47 -- include/asm-v850/delay.h | 47 -- include/asm-v850/device.h | 7 - include/asm-v850/div64.h | 1 - include/asm-v850/dma-mapping.h | 11 - include/asm-v850/dma.h | 18 - include/asm-v850/elf.h | 99 --- include/asm-v850/emergency-restart.h | 6 - include/asm-v850/entry.h | 113 ---- include/asm-v850/errno.h | 6 - include/asm-v850/fb.h | 12 - include/asm-v850/fcntl.h | 11 - include/asm-v850/flat.h | 133 ---- include/asm-v850/fpga85e2c.h | 82 --- include/asm-v850/futex.h | 6 - include/asm-v850/gbus_int.h | 97 --- include/asm-v850/hardirq.h | 28 - include/asm-v850/highres_timer.h | 44 -- include/asm-v850/hw_irq.h | 4 - include/asm-v850/io.h | 142 ---- include/asm-v850/ioctl.h | 1 - include/asm-v850/ioctls.h | 84 --- include/asm-v850/ipcbuf.h | 29 - include/asm-v850/irq.h | 55 -- include/asm-v850/irq_regs.h | 1 - include/asm-v850/kdebug.h | 1 - include/asm-v850/kmap_types.h | 19 - include/asm-v850/kvm.h | 6 - include/asm-v850/linkage.h | 8 - include/asm-v850/local.h | 6 - include/asm-v850/ma.h | 101 --- include/asm-v850/ma1.h | 50 -- include/asm-v850/machdep.h | 60 -- include/asm-v850/macrology.h | 17 - include/asm-v850/me2.h | 182 ------ include/asm-v850/mman.h | 15 - include/asm-v850/mmu.h | 11 - include/asm-v850/mmu_context.h | 13 - include/asm-v850/module.h | 62 -- include/asm-v850/msgbuf.h | 31 - include/asm-v850/mutex.h | 9 - include/asm-v850/page.h | 124 ---- include/asm-v850/param.h | 33 - include/asm-v850/pci.h | 119 ---- include/asm-v850/percpu.h | 14 - include/asm-v850/pgalloc.h | 22 - include/asm-v850/pgtable.h | 59 -- include/asm-v850/poll.h | 9 - include/asm-v850/posix_types.h | 72 -- include/asm-v850/processor.h | 120 ---- include/asm-v850/ptrace.h | 121 ---- include/asm-v850/resource.h | 6 - include/asm-v850/rte_cb.h | 78 --- include/asm-v850/rte_ma1_cb.h | 128 ---- include/asm-v850/rte_mb_a_pci.h | 56 -- include/asm-v850/rte_me2_cb.h | 202 ------ include/asm-v850/rte_nb85e_cb.h | 111 ---- include/asm-v850/scatterlist.h | 31 - include/asm-v850/sections.h | 6 - include/asm-v850/segment.h | 36 - include/asm-v850/semaphore.h | 1 - include/asm-v850/sembuf.h | 25 - include/asm-v850/serial.h | 56 -- include/asm-v850/setup.h | 6 - include/asm-v850/shmbuf.h | 42 -- include/asm-v850/shmparam.h | 6 - include/asm-v850/sigcontext.h | 25 - include/asm-v850/siginfo.h | 6 - include/asm-v850/signal.h | 168 ----- include/asm-v850/sim.h | 47 -- include/asm-v850/sim85e2.h | 69 -- include/asm-v850/sim85e2c.h | 26 - include/asm-v850/sim85e2s.h | 28 - include/asm-v850/simsyscall.h | 99 --- include/asm-v850/socket.h | 57 -- include/asm-v850/sockios.h | 13 - include/asm-v850/stat.h | 73 --- include/asm-v850/statfs.h | 6 - include/asm-v850/string.h | 25 - include/asm-v850/system.h | 123 ---- include/asm-v850/teg.h | 101 --- include/asm-v850/termbits.h | 200 ------ include/asm-v850/termios.h | 90 --- include/asm-v850/thread_info.h | 129 ---- include/asm-v850/timex.h | 18 - include/asm-v850/tlb.h | 21 - include/asm-v850/tlbflush.h | 64 -- include/asm-v850/topology.h | 6 - include/asm-v850/types.h | 36 - include/asm-v850/uaccess.h | 159 ----- include/asm-v850/ucontext.h | 14 - include/asm-v850/unaligned.h | 22 - include/asm-v850/unistd.h | 244 ------- include/asm-v850/user.h | 52 -- include/asm-v850/v850e.h | 21 - include/asm-v850/v850e2.h | 69 -- include/asm-v850/v850e2_cache.h | 75 --- include/asm-v850/v850e_cache.h | 48 -- include/asm-v850/v850e_intc.h | 133 ---- include/asm-v850/v850e_timer_c.h | 48 -- include/asm-v850/v850e_timer_d.h | 62 -- include/asm-v850/v850e_uart.h | 76 --- include/asm-v850/v850e_uarta.h | 278 -------- include/asm-v850/v850e_uartb.h | 262 -------- include/asm-v850/v850e_utils.h | 35 - include/linux/audit.h | 1 - include/linux/module.h | 2 +- include/linux/serial_core.h | 3 - include/linux/syscalls.h | 2 +- scripts/genksyms/genksyms.c | 3 +- scripts/mod/file2alias.c | 2 +- scripts/mod/mk_elfconfig.c | 2 +- 204 files changed, 5 insertions(+), 18406 deletions(-) delete mode 100644 arch/v850/Kconfig delete mode 100644 arch/v850/Kconfig.debug delete mode 100644 arch/v850/Makefile delete mode 100644 arch/v850/README delete mode 100644 arch/v850/configs/rte-ma1-cb_defconfig delete mode 100644 arch/v850/configs/rte-me2-cb_defconfig delete mode 100644 arch/v850/configs/sim_defconfig delete mode 100644 arch/v850/kernel/Makefile delete mode 100644 arch/v850/kernel/anna-rom.ld delete mode 100644 arch/v850/kernel/anna.c delete mode 100644 arch/v850/kernel/anna.ld delete mode 100644 arch/v850/kernel/as85ep1-rom.ld delete mode 100644 arch/v850/kernel/as85ep1.c delete mode 100644 arch/v850/kernel/as85ep1.ld delete mode 100644 arch/v850/kernel/asm-offsets.c delete mode 100644 arch/v850/kernel/bug.c delete mode 100644 arch/v850/kernel/entry.S delete mode 100644 arch/v850/kernel/fpga85e2c.c delete mode 100644 arch/v850/kernel/fpga85e2c.ld delete mode 100644 arch/v850/kernel/gbus_int.c delete mode 100644 arch/v850/kernel/head.S delete mode 100644 arch/v850/kernel/highres_timer.c delete mode 100644 arch/v850/kernel/init_task.c delete mode 100644 arch/v850/kernel/intv.S delete mode 100644 arch/v850/kernel/irq.c delete mode 100644 arch/v850/kernel/ma.c delete mode 100644 arch/v850/kernel/mach.c delete mode 100644 arch/v850/kernel/mach.h delete mode 100644 arch/v850/kernel/me2.c delete mode 100644 arch/v850/kernel/memcons.c delete mode 100644 arch/v850/kernel/module.c delete mode 100644 arch/v850/kernel/process.c delete mode 100644 arch/v850/kernel/procfs.c delete mode 100644 arch/v850/kernel/ptrace.c delete mode 100644 arch/v850/kernel/rte_cb.c delete mode 100644 arch/v850/kernel/rte_cb_leds.c delete mode 100644 arch/v850/kernel/rte_cb_multi.c delete mode 100644 arch/v850/kernel/rte_ma1_cb-rom.ld delete mode 100644 arch/v850/kernel/rte_ma1_cb.c delete mode 100644 arch/v850/kernel/rte_ma1_cb.ld delete mode 100644 arch/v850/kernel/rte_mb_a_pci.c delete mode 100644 arch/v850/kernel/rte_me2_cb.c delete mode 100644 arch/v850/kernel/rte_me2_cb.ld delete mode 100644 arch/v850/kernel/rte_nb85e_cb-multi.ld delete mode 100644 arch/v850/kernel/rte_nb85e_cb.c delete mode 100644 arch/v850/kernel/rte_nb85e_cb.ld delete mode 100644 arch/v850/kernel/setup.c delete mode 100644 arch/v850/kernel/signal.c delete mode 100644 arch/v850/kernel/sim.c delete mode 100644 arch/v850/kernel/sim.ld delete mode 100644 arch/v850/kernel/sim85e2.c delete mode 100644 arch/v850/kernel/sim85e2.ld delete mode 100644 arch/v850/kernel/simcons.c delete mode 100644 arch/v850/kernel/syscalls.c delete mode 100644 arch/v850/kernel/teg.c delete mode 100644 arch/v850/kernel/time.c delete mode 100644 arch/v850/kernel/v850_ksyms.c delete mode 100644 arch/v850/kernel/v850e2_cache.c delete mode 100644 arch/v850/kernel/v850e_cache.c delete mode 100644 arch/v850/kernel/v850e_intc.c delete mode 100644 arch/v850/kernel/v850e_timer_d.c delete mode 100644 arch/v850/kernel/v850e_utils.c delete mode 100644 arch/v850/kernel/vmlinux.lds.S delete mode 100644 arch/v850/lib/Makefile delete mode 100644 arch/v850/lib/ashldi3.c delete mode 100644 arch/v850/lib/ashrdi3.c delete mode 100644 arch/v850/lib/checksum.c delete mode 100644 arch/v850/lib/lshrdi3.c delete mode 100644 arch/v850/lib/memcpy.c delete mode 100644 arch/v850/lib/memset.c delete mode 100644 arch/v850/lib/muldi3.c delete mode 100644 arch/v850/lib/negdi2.c delete mode 100644 include/asm-v850/Kbuild delete mode 100644 include/asm-v850/a.out.h delete mode 100644 include/asm-v850/anna.h delete mode 100644 include/asm-v850/as85ep1.h delete mode 100644 include/asm-v850/asm.h delete mode 100644 include/asm-v850/atomic.h delete mode 100644 include/asm-v850/auxvec.h delete mode 100644 include/asm-v850/bitops.h delete mode 100644 include/asm-v850/bug.h delete mode 100644 include/asm-v850/bugs.h delete mode 100644 include/asm-v850/byteorder.h delete mode 100644 include/asm-v850/cache.h delete mode 100644 include/asm-v850/cacheflush.h delete mode 100644 include/asm-v850/checksum.h delete mode 100644 include/asm-v850/clinkage.h delete mode 100644 include/asm-v850/cputime.h delete mode 100644 include/asm-v850/current.h delete mode 100644 include/asm-v850/delay.h delete mode 100644 include/asm-v850/device.h delete mode 100644 include/asm-v850/div64.h delete mode 100644 include/asm-v850/dma-mapping.h delete mode 100644 include/asm-v850/dma.h delete mode 100644 include/asm-v850/elf.h delete mode 100644 include/asm-v850/emergency-restart.h delete mode 100644 include/asm-v850/entry.h delete mode 100644 include/asm-v850/errno.h delete mode 100644 include/asm-v850/fb.h delete mode 100644 include/asm-v850/fcntl.h delete mode 100644 include/asm-v850/flat.h delete mode 100644 include/asm-v850/fpga85e2c.h delete mode 100644 include/asm-v850/futex.h delete mode 100644 include/asm-v850/gbus_int.h delete mode 100644 include/asm-v850/hardirq.h delete mode 100644 include/asm-v850/highres_timer.h delete mode 100644 include/asm-v850/hw_irq.h delete mode 100644 include/asm-v850/io.h delete mode 100644 include/asm-v850/ioctl.h delete mode 100644 include/asm-v850/ioctls.h delete mode 100644 include/asm-v850/ipcbuf.h delete mode 100644 include/asm-v850/irq.h delete mode 100644 include/asm-v850/irq_regs.h delete mode 100644 include/asm-v850/kdebug.h delete mode 100644 include/asm-v850/kmap_types.h delete mode 100644 include/asm-v850/kvm.h delete mode 100644 include/asm-v850/linkage.h delete mode 100644 include/asm-v850/local.h delete mode 100644 include/asm-v850/ma.h delete mode 100644 include/asm-v850/ma1.h delete mode 100644 include/asm-v850/machdep.h delete mode 100644 include/asm-v850/macrology.h delete mode 100644 include/asm-v850/me2.h delete mode 100644 include/asm-v850/mman.h delete mode 100644 include/asm-v850/mmu.h delete mode 100644 include/asm-v850/mmu_context.h delete mode 100644 include/asm-v850/module.h delete mode 100644 include/asm-v850/msgbuf.h delete mode 100644 include/asm-v850/mutex.h delete mode 100644 include/asm-v850/page.h delete mode 100644 include/asm-v850/param.h delete mode 100644 include/asm-v850/pci.h delete mode 100644 include/asm-v850/percpu.h delete mode 100644 include/asm-v850/pgalloc.h delete mode 100644 include/asm-v850/pgtable.h delete mode 100644 include/asm-v850/poll.h delete mode 100644 include/asm-v850/posix_types.h delete mode 100644 include/asm-v850/processor.h delete mode 100644 include/asm-v850/ptrace.h delete mode 100644 include/asm-v850/resource.h delete mode 100644 include/asm-v850/rte_cb.h delete mode 100644 include/asm-v850/rte_ma1_cb.h delete mode 100644 include/asm-v850/rte_mb_a_pci.h delete mode 100644 include/asm-v850/rte_me2_cb.h delete mode 100644 include/asm-v850/rte_nb85e_cb.h delete mode 100644 include/asm-v850/scatterlist.h delete mode 100644 include/asm-v850/sections.h delete mode 100644 include/asm-v850/segment.h delete mode 100644 include/asm-v850/semaphore.h delete mode 100644 include/asm-v850/sembuf.h delete mode 100644 include/asm-v850/serial.h delete mode 100644 include/asm-v850/setup.h delete mode 100644 include/asm-v850/shmbuf.h delete mode 100644 include/asm-v850/shmparam.h delete mode 100644 include/asm-v850/sigcontext.h delete mode 100644 include/asm-v850/siginfo.h delete mode 100644 include/asm-v850/signal.h delete mode 100644 include/asm-v850/sim.h delete mode 100644 include/asm-v850/sim85e2.h delete mode 100644 include/asm-v850/sim85e2c.h delete mode 100644 include/asm-v850/sim85e2s.h delete mode 100644 include/asm-v850/simsyscall.h delete mode 100644 include/asm-v850/socket.h delete mode 100644 include/asm-v850/sockios.h delete mode 100644 include/asm-v850/stat.h delete mode 100644 include/asm-v850/statfs.h delete mode 100644 include/asm-v850/string.h delete mode 100644 include/asm-v850/system.h delete mode 100644 include/asm-v850/teg.h delete mode 100644 include/asm-v850/termbits.h delete mode 100644 include/asm-v850/termios.h delete mode 100644 include/asm-v850/thread_info.h delete mode 100644 include/asm-v850/timex.h delete mode 100644 include/asm-v850/tlb.h delete mode 100644 include/asm-v850/tlbflush.h delete mode 100644 include/asm-v850/topology.h delete mode 100644 include/asm-v850/types.h delete mode 100644 include/asm-v850/uaccess.h delete mode 100644 include/asm-v850/ucontext.h delete mode 100644 include/asm-v850/unaligned.h delete mode 100644 include/asm-v850/unistd.h delete mode 100644 include/asm-v850/user.h delete mode 100644 include/asm-v850/v850e.h delete mode 100644 include/asm-v850/v850e2.h delete mode 100644 include/asm-v850/v850e2_cache.h delete mode 100644 include/asm-v850/v850e_cache.h delete mode 100644 include/asm-v850/v850e_intc.h delete mode 100644 include/asm-v850/v850e_timer_c.h delete mode 100644 include/asm-v850/v850e_timer_d.h delete mode 100644 include/asm-v850/v850e_uart.h delete mode 100644 include/asm-v850/v850e_uarta.h delete mode 100644 include/asm-v850/v850e_uartb.h delete mode 100644 include/asm-v850/v850e_utils.h (limited to 'include') diff --git a/MAINTAINERS b/MAINTAINERS index 7ffd78c4e277..7e5c7b0290bb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4131,9 +4131,6 @@ W: http://www.uclinux.org/ L: uclinux-dev@uclinux.org (subscribers-only) S: Maintained -UCLINUX FOR NEC V850 -P: Miles Bader - UCLINUX FOR RENESAS H8/300 P: Yoshinori Sato M: ysato@users.sourceforge.jp diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig deleted file mode 100644 index 4379f43505ef..000000000000 --- a/arch/v850/Kconfig +++ /dev/null @@ -1,353 +0,0 @@ -############################################################################# -# -# For a description of the syntax of this configuration file, -# see Documentation/kbuild/kconfig-language.txt. -# -############################################################################# - -mainmenu "uClinux/v850 (w/o MMU) Kernel Configuration" - -config MMU - bool - default n -config ZONE_DMA - bool - default y -config RWSEM_GENERIC_SPINLOCK - bool - default y -config RWSEM_XCHGADD_ALGORITHM - bool - default n -config GENERIC_FIND_NEXT_BIT - bool - default y -config GENERIC_HWEIGHT - bool - default y -config GENERIC_CALIBRATE_DELAY - bool - default y - -config GENERIC_HARDIRQS - bool - default y - -config GENERIC_IRQ_PROBE - bool - default y - -config GENERIC_TIME - bool - default y - -config TIME_LOW_RES - bool - default y - -config ARCH_HAS_ILOG2_U32 - bool - default n - -config ARCH_HAS_ILOG2_U64 - bool - default n - -config ARCH_SUPPORTS_AOUT - def_bool y - -# Turn off some random 386 crap that can affect device config -config ISA - bool - default n -config ISAPNP - bool - default n -config EISA - bool - default n -config MCA - bool - default n - - -############################################################################# -#### v850-specific config - -# Define the architecture -config V850 - bool - default y - select HAVE_IDE - -menu "Processor type and features" - - choice - prompt "Platform" - default GDB - config V850E_SIM - bool "GDB" - config RTE_CB_MA1 - bool "RTE-V850E/MA1-CB" - config RTE_CB_NB85E - bool "RTE-V850E/NB85E-CB" - config RTE_CB_ME2 - bool "RTE-V850E/ME2-CB" - config V850E_AS85EP1 - bool "AS85EP1" - config V850E2_SIM85E2C - bool "sim85e2c" - config V850E2_SIM85E2S - bool "sim85e2s" - config V850E2_FPGA85E2C - bool "NA85E2C-FPGA" - config V850E2_ANNA - bool "Anna" - endchoice - - #### V850E processor-specific config - - # All CPUs currently supported use the v850e architecture - config V850E - bool - default y - - # The RTE-V850E/MA1-CB is the only type of V850E/MA1 platform we - # currently support - config V850E_MA1 - bool - depends on RTE_CB_MA1 - default y - # Similarly for the RTE-V850E/NB85E-CB - V850E/TEG - config V850E_TEG - bool - depends on RTE_CB_NB85E - default y - # ... and the RTE-V850E/ME2-CB - V850E/ME2 - config V850E_ME2 - bool - depends on RTE_CB_ME2 - default y - - - #### sim85e2-specific config - - config V850E2_SIM85E2 - bool - depends on V850E2_SIM85E2C || V850E2_SIM85E2S - default y - - - #### V850E2 processor-specific config - - # V850E2 processors - config V850E2 - bool - depends on V850E2_SIM85E2 || V850E2_FPGA85E2C || V850E2_ANNA - default y - - - #### RTE-CB platform-specific config - - # Boards in the RTE-x-CB series - config RTE_CB - bool - depends on RTE_CB_MA1 || RTE_CB_NB85E || RTE_CB_ME2 - default y - - config RTE_CB_MULTI - bool - # RTE_CB_NB85E can either have multi ROM support or not, but - # other platforms (currently only RTE_CB_MA1) require it. - prompt "Multi monitor ROM support" if RTE_CB_NB85E - depends on RTE_CB_MA1 || RTE_CB_NB85E - default y - - config RTE_CB_MULTI_DBTRAP - bool "Pass illegal insn trap / dbtrap to kernel" - depends on RTE_CB_MULTI - default n - - config RTE_CB_MA1_KSRAM - bool "Kernel in SRAM (limits size of kernel)" - depends on RTE_CB_MA1 && RTE_CB_MULTI - default n - - config RTE_MB_A_PCI - bool "Mother-A PCI support" - depends on RTE_CB - default y - - # The GBUS is used to talk to the RTE-MOTHER-A board - config RTE_GBUS_INT - bool - depends on RTE_MB_A_PCI - default y - - # The only PCI bus we support is on the RTE-MOTHER-A board - config PCI - bool - default RTE_MB_A_PCI - - #### Some feature-specific configs - - # Everything except for the GDB simulator uses the same interrupt controller - config V850E_INTC - bool - default !V850E_SIM - - # Everything except for the various simulators uses the "Timer D" unit - config V850E_TIMER_D - bool - default !V850E_SIM && !V850E2_SIM85E2 - - # Cache control used on some v850e1 processors - config V850E_CACHE - bool - default V850E_TEG || V850E_ME2 - - # Cache control used on v850e2 processors; I think this should - # actually apply to more, but currently only the SIM85E2S uses it - config V850E2_CACHE - bool - default V850E2_SIM85E2S - - config NO_CACHE - bool - default !V850E_CACHE && !V850E2_CACHE - - # HZ depends on the platform - config HZ - int - default 24 if V850E_SIM || V850E2_SIM85E2 - default 122 if V850E2_FPGA85E2C - default 100 - - #### Misc config - - config ROM_KERNEL - bool "Kernel in ROM" - depends on V850E2_ANNA || V850E_AS85EP1 || RTE_CB_ME2 - - # Some platforms pre-zero memory, in which case the kernel doesn't need to - config ZERO_BSS - bool - depends on !V850E2_SIM85E2C - default y - - # The crappy-ass zone allocator requires that the start of allocatable - # memory be aligned to the largest possible allocation. - config FORCE_MAX_ZONEORDER - int - default 8 if V850E2_SIM85E2C || V850E2_FPGA85E2C - - config V850E_HIGHRES_TIMER - bool "High resolution timer support" - depends on V850E_TIMER_D - config TIME_BOOTUP - bool "Time bootup" - depends on V850E_HIGHRES_TIMER - - config RESET_GUARD - bool "Reset Guard" - -source "mm/Kconfig" - -endmenu - - -############################################################################# - -source init/Kconfig - -############################################################################# - -menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" - -# config PCI -# bool "PCI support" -# help -# Support for PCI bus. - -source "drivers/pci/Kconfig" - -source "drivers/pcmcia/Kconfig" - -source "drivers/pci/hotplug/Kconfig" - -endmenu - -menu "Executable file formats" - -source "fs/Kconfig.binfmt" - -endmenu - -source "net/Kconfig" - -############################################################################# - -source "drivers/base/Kconfig" - -source drivers/mtd/Kconfig - -source drivers/parport/Kconfig - -#source drivers/pnp/Kconfig - -source drivers/block/Kconfig - -############################################################################# - -menu "Disk device support" - -source "drivers/ide/Kconfig" - -source "drivers/scsi/Kconfig" - -endmenu - -############################################################################# - - -source "drivers/md/Kconfig" - -source "drivers/message/fusion/Kconfig" - -source "drivers/ieee1394/Kconfig" - -source "drivers/message/i2o/Kconfig" - -source "drivers/net/Kconfig" - -source "drivers/isdn/Kconfig" - -#source "drivers/telephony/Kconfig" - -# -# input before char - char/joystick depends on it. As does USB. -# -source "drivers/input/Kconfig" - -source "drivers/char/Kconfig" - -#source drivers/misc/Config.in -source "drivers/media/Kconfig" - -source "fs/Kconfig" - -source "drivers/video/Kconfig" - -source "sound/Kconfig" - -source "drivers/usb/Kconfig" - -source "arch/v850/Kconfig.debug" - -source "security/Kconfig" - -source "crypto/Kconfig" - -source "lib/Kconfig" - -############################################################################# diff --git a/arch/v850/Kconfig.debug b/arch/v850/Kconfig.debug deleted file mode 100644 index 4acfb9cca1ca..000000000000 --- a/arch/v850/Kconfig.debug +++ /dev/null @@ -1,10 +0,0 @@ -menu "Kernel hacking" - -source "lib/Kconfig.debug" - -config NO_KERNEL_MSG - bool "Suppress Kernel BUG Messages" - help - Do not output any debug BUG messages within the kernel. - -endmenu diff --git a/arch/v850/Makefile b/arch/v850/Makefile deleted file mode 100644 index 8b629df0029a..000000000000 --- a/arch/v850/Makefile +++ /dev/null @@ -1,54 +0,0 @@ -# -# arch/v850/Makefile -# -# Copyright (C) 2001,02,03,05 NEC Corporation -# Copyright (C) 2001,02,03,05 Miles Bader -# -# This file is included by the global makefile so that you can add your own -# architecture-specific flags and dependencies. Remember to do have actions -# for "archclean" and "archdep" for cleaning up and making dependencies for -# this architecture -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# - -arch_dir = arch/v850 - -KBUILD_CFLAGS += -mv850e -# r16 is a fixed pointer to the current task -KBUILD_CFLAGS += -ffixed-r16 -mno-prolog-function -KBUILD_CFLAGS += -fno-builtin -KBUILD_CFLAGS += -D__linux__ -DUTS_SYSNAME=\"uClinux\" - -# By default, build a kernel that runs on the gdb v850 simulator. -KBUILD_DEFCONFIG := sim_defconfig - -# This prevents the linker from consolidating the .gnu.linkonce.this_module -# section into .text (which the v850 default linker script for -r does for -# some reason) -LDFLAGS_MODULE += --unique=.gnu.linkonce.this_module - -OBJCOPY_FLAGS_BLOB := -I binary -O elf32-little -B v850e - - -head-y := $(arch_dir)/kernel/head.o $(arch_dir)/kernel/init_task.o -core-y += $(arch_dir)/kernel/ -libs-y += $(arch_dir)/lib/ - - -# Deal with the initial contents of the root device -ifdef ROOT_FS_IMAGE -core-y += root_fs_image.o - -# Because the kernel build-system erases all explicit .o build rules, we -# have to use an intermediate target to fool it into building for us. -# This results in it being built anew each time, but that's alright. -root_fs_image.o: root_fs_image_force - -root_fs_image_force: $(ROOT_FS_IMAGE) - $(OBJCOPY) $(OBJCOPY_FLAGS_BLOB) --rename-section .data=.root,alloc,load,readonly,data,contents $< root_fs_image.o -endif - -CLEAN_FILES += root_fs_image.o diff --git a/arch/v850/README b/arch/v850/README deleted file mode 100644 index 12f7f7a665e0..000000000000 --- a/arch/v850/README +++ /dev/null @@ -1,44 +0,0 @@ -This port to the NEC V850E processor supports the following platforms: - - "sim" - The gdb v850e simulator (CONFIG_V850E_SIM). - - "rte-ma1-cb" - The Midas labs RTE-V850E/MA1-CB and RTE-V850E/NB85E-CB evaluation - boards (CONFIG_RTE_CB_MA1 and CONFIG_RTE_CB_NB85E). This support - has only been tested when running with the Multi-debugger monitor - ROM (for the Green Hills Multi debugger). The optional NEC - Solution Gear RTE-MOTHER-A motherboard is also supported, which - allows PCI boards to be used (CONFIG_RTE_MB_A_PCI). - - "rte-me2-cb" - The Midas labs RTE-V850E/ME2-CB evaluation board (CONFIG_RTE_CB_ME2). - This has only been tested using a kernel downloaded via an ICE - connection using the Multi debugger. Support for the RTE-MOTHER-A is - present, but hasn't been tested (unlike the other Midas labs cpu - boards, the RTE-V850E/ME2-CB includes an ethernet adaptor). - - "as85ep1" - The NEC AS85EP1 V850E evaluation chip/board (CONFIG_V850E_AS85EP1). - - "anna" - The NEC `Anna' (board/chip) implementation of the V850E2 processor - (CONFIG_V850E2_ANNA). - - "sim85e2c", "sim85e2s" - The sim85e2c and sim85e2s simulators, which are verilog simulations - of the V850E2 NA85E2C/NA85E2S cpu cores (CONFIG_V850E2_SIM85E2C and - CONFIG_V850E2_SIM85E2S). - - "fpga85e2c" - A FPGA implementation of the V850E2 NA85E2C cpu core - (CONFIG_V850E2_FPGA85E2C). - -To get a default kernel configuration for a particular platform, you can -use a _defconfig make target (e.g., "make rte-me2-cb_defconfig"); -to see which default configurations are possible, look in the directory -"arch/v850/configs". - -Porting to anything with a V850E/MA1 or MA2 processor should be simple. -See the file and the files it includes for an example of -how to add platform/chip-specific support. diff --git a/arch/v850/configs/rte-ma1-cb_defconfig b/arch/v850/configs/rte-ma1-cb_defconfig deleted file mode 100644 index 1a5beda36e29..000000000000 --- a/arch/v850/configs/rte-ma1-cb_defconfig +++ /dev/null @@ -1,617 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.13-uc0 -# Fri Sep 2 13:54:27 2005 -# -# CONFIG_MMU is not set -# CONFIG_UID16 is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set -CONFIG_GENERIC_CALIBRATE_DELAY=y -# CONFIG_ISA is not set -# CONFIG_ISAPNP is not set -# CONFIG_EISA is not set -# CONFIG_MCA is not set -CONFIG_V850=y - -# -# Processor type and features -# -# CONFIG_V850E_SIM is not set -CONFIG_RTE_CB_MA1=y -# CONFIG_RTE_CB_NB85E is not set -# CONFIG_RTE_CB_ME2 is not set -# CONFIG_V850E_AS85EP1 is not set -# CONFIG_V850E2_SIM85E2C is not set -# CONFIG_V850E2_SIM85E2S is not set -# CONFIG_V850E2_FPGA85E2C is not set -# CONFIG_V850E2_ANNA is not set -CONFIG_V850E=y -CONFIG_V850E_MA1=y -CONFIG_RTE_CB=y -CONFIG_RTE_CB_MULTI=y -CONFIG_RTE_CB_MULTI_DBTRAP=y -# CONFIG_RTE_CB_MA1_KSRAM is not set -CONFIG_RTE_MB_A_PCI=y -CONFIG_RTE_GBUS_INT=y -CONFIG_PCI=y -CONFIG_V850E_INTC=y -CONFIG_V850E_TIMER_D=y -# CONFIG_V850E_CACHE is not set -# CONFIG_V850E2_CACHE is not set -CONFIG_NO_CACHE=y -CONFIG_ZERO_BSS=y -# CONFIG_V850E_HIGHRES_TIMER is not set -# CONFIG_RESET_GUARD is not set -CONFIG_LARGE_ALLOCS=y -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y - -# -# Code maturity level options -# -# CONFIG_EXPERIMENTAL is not set -CONFIG_CLEAN_COMPILE=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# -CONFIG_LOCALVERSION="" -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_SYSCTL is not set -# CONFIG_AUDIT is not set -# CONFIG_HOTPLUG is not set -CONFIG_KOBJECT_UEVENT=y -# CONFIG_IKCONFIG is not set -CONFIG_EMBEDDED=y -# CONFIG_KALLSYMS is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -# CONFIG_BASE_FULL is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -CONFIG_CC_OPTIMIZE_FOR_SIZE=y -CONFIG_CC_ALIGN_FUNCTIONS=0 -CONFIG_CC_ALIGN_LABELS=0 -CONFIG_CC_ALIGN_LOOPS=0 -CONFIG_CC_ALIGN_JUMPS=0 -CONFIG_BASE_SMALL=1 - -# -# Loadable module support -# -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -CONFIG_OBSOLETE_MODPARM=y -# CONFIG_MODULE_SRCVERSION_ALL is not set -CONFIG_KMOD=y - -# -# Bus options (PCI, PCMCIA, EISA, MCA, ISA) -# -# CONFIG_PCI_LEGACY_PROC is not set -# CONFIG_PCI_NAMES is not set -# CONFIG_PCI_DEBUG is not set - -# -# PCCARD (PCMCIA/CardBus) support -# -# CONFIG_PCCARD is not set - -# -# PCI Hotplug Support -# - -# -# Executable file formats -# -CONFIG_BINFMT_FLAT=y -# CONFIG_BINFMT_ZFLAT is not set -# CONFIG_BINFMT_SHARED_FLAT is not set -# CONFIG_BINFMT_MISC is not set - -# -# Networking -# -CONFIG_NET=y - -# -# Networking options -# -# CONFIG_PACKET is not set -# CONFIG_UNIX is not set -# CONFIG_NET_KEY is not set -CONFIG_INET=y -# CONFIG_IP_MULTICAST is not set -# CONFIG_IP_ADVANCED_ROUTER is not set -CONFIG_IP_FIB_HASH=y -# CONFIG_IP_PNP is not set -# CONFIG_NET_IPIP is not set -# CONFIG_NET_IPGRE is not set -# CONFIG_SYN_COOKIES is not set -# CONFIG_INET_AH is not set -# CONFIG_INET_ESP is not set -# CONFIG_INET_IPCOMP is not set -# CONFIG_INET_TUNNEL is not set -# CONFIG_IP_TCPDIAG is not set -# CONFIG_IP_TCPDIAG_IPV6 is not set -# CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_BIC=y -# CONFIG_IPV6 is not set -# CONFIG_NETFILTER is not set -# CONFIG_BRIDGE is not set -# CONFIG_VLAN_8021Q is not set -# CONFIG_DECNET is not set -# CONFIG_LLC2 is not set -# CONFIG_IPX is not set -# CONFIG_ATALK is not set -# CONFIG_NET_SCHED is not set -# CONFIG_NET_CLS_ROUTE is not set - -# -# Network testing -# -# CONFIG_NET_PKTGEN is not set -# CONFIG_HAMRADIO is not set -# CONFIG_IRDA is not set -# CONFIG_BT is not set - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set -# CONFIG_DEBUG_DRIVER is not set - -# -# Memory Technology Devices (MTD) -# -CONFIG_MTD=y -# CONFIG_MTD_DEBUG is not set -# CONFIG_MTD_CONCAT is not set -# CONFIG_MTD_PARTITIONS is not set - -# -# User Modules And Translation Layers -# -# CONFIG_MTD_CHAR is not set -CONFIG_MTD_BLOCK=y -# CONFIG_FTL is not set -# CONFIG_NFTL is not set -# CONFIG_INFTL is not set - -# -# RAM/ROM/Flash chip drivers -# -# CONFIG_MTD_CFI is not set -# CONFIG_MTD_JEDECPROBE is not set -CONFIG_MTD_MAP_BANK_WIDTH_1=y -CONFIG_MTD_MAP_BANK_WIDTH_2=y -CONFIG_MTD_MAP_BANK_WIDTH_4=y -# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set -CONFIG_MTD_CFI_I1=y -CONFIG_MTD_CFI_I2=y -# CONFIG_MTD_CFI_I4 is not set -# CONFIG_MTD_CFI_I8 is not set -# CONFIG_MTD_RAM is not set -# CONFIG_MTD_ROM is not set -# CONFIG_MTD_ABSENT is not set - -# -# Mapping drivers for chip access -# -# CONFIG_MTD_COMPLEX_MAPPINGS is not set -# CONFIG_MTD_PLATRAM is not set - -# -# Self-contained MTD device drivers -# -# CONFIG_MTD_PMC551 is not set -CONFIG_MTD_SLRAM=y -# CONFIG_MTD_PHRAM is not set -# CONFIG_MTD_MTDRAM is not set -# CONFIG_MTD_BLKMTD is not set - -# -# Disk-On-Chip Device Drivers -# -# CONFIG_MTD_DOC2000 is not set -# CONFIG_MTD_DOC2001 is not set -# CONFIG_MTD_DOC2001PLUS is not set - -# -# NAND Flash Device Drivers -# -# CONFIG_MTD_NAND is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Block devices -# -# CONFIG_BLK_DEV_FD is not set -# CONFIG_BLK_CPQ_DA is not set -# CONFIG_BLK_CPQ_CISS_DA is not set -# CONFIG_BLK_DEV_DAC960 is not set -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set -# CONFIG_BLK_DEV_NBD is not set -# CONFIG_BLK_DEV_SX8 is not set -# CONFIG_BLK_DEV_RAM is not set -CONFIG_BLK_DEV_RAM_COUNT=16 -CONFIG_INITRAMFS_SOURCE="" -# CONFIG_CDROM_PKTCDVD is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -# CONFIG_IOSCHED_AS is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -# CONFIG_ATA_OVER_ETH is not set - -# -# Disk device support -# - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set - -# -# SCSI device support -# -# CONFIG_SCSI is not set - -# -# Multi-device support (RAID and LVM) -# -# CONFIG_MD is not set - -# -# Fusion MPT device support -# -# CONFIG_FUSION is not set - -# -# IEEE 1394 (FireWire) support -# -# CONFIG_IEEE1394 is not set - -# -# I2O device support -# -# CONFIG_I2O is not set - -# -# Network device support -# -CONFIG_NETDEVICES=y -# CONFIG_DUMMY is not set -# CONFIG_BONDING is not set -# CONFIG_EQUALIZER is not set -# CONFIG_TUN is not set - -# -# ARCnet devices -# -# CONFIG_ARCNET is not set - -# -# Ethernet (10 or 100Mbit) -# -CONFIG_NET_ETHERNET=y -CONFIG_MII=y -# CONFIG_HAPPYMEAL is not set -# CONFIG_SUNGEM is not set -# CONFIG_NET_VENDOR_3COM is not set -# CONFIG_NET_VENDOR_SMC is not set - -# -# Tulip family network device support -# -# CONFIG_NET_TULIP is not set -# CONFIG_HP100 is not set -# CONFIG_NE2000 is not set -CONFIG_NET_PCI=y -# CONFIG_PCNET32 is not set -# CONFIG_AMD8111_ETH is not set -# CONFIG_ADAPTEC_STARFIRE is not set -# CONFIG_DGRS is not set -CONFIG_EEPRO100=y -# CONFIG_E100 is not set -# CONFIG_FEALNX is not set -# CONFIG_NATSEMI is not set -# CONFIG_NE2K_PCI is not set -# CONFIG_8139TOO is not set -# CONFIG_SIS900 is not set -# CONFIG_EPIC100 is not set -# CONFIG_SUNDANCE is not set -# CONFIG_TLAN is not set -# CONFIG_VIA_RHINE is not set - -# -# Ethernet (1000 Mbit) -# -# CONFIG_ACENIC is not set -# CONFIG_DL2K is not set -# CONFIG_E1000 is not set -# CONFIG_NS83820 is not set -# CONFIG_HAMACHI is not set -# CONFIG_R8169 is not set -# CONFIG_SK98LIN is not set -# CONFIG_VIA_VELOCITY is not set -# CONFIG_TIGON3 is not set -# CONFIG_BNX2 is not set - -# -# Ethernet (10000 Mbit) -# -# CONFIG_IXGB is not set -# CONFIG_S2IO is not set - -# -# Token Ring devices -# -# CONFIG_TR is not set - -# -# Wireless LAN (non-hamradio) -# -# CONFIG_NET_RADIO is not set - -# -# Wan interfaces -# -# CONFIG_WAN is not set -# CONFIG_FDDI is not set -# CONFIG_PPP is not set -# CONFIG_SLIP is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# -# CONFIG_ISDN is not set - -# -# Input device support -# -CONFIG_INPUT=y - -# -# Userland interfaces -# -# CONFIG_INPUT_MOUSEDEV is not set -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set - -# -# Input Device Drivers -# -# CONFIG_INPUT_KEYBOARD is not set -# CONFIG_INPUT_MOUSE is not set -# CONFIG_INPUT_JOYSTICK is not set -# CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set - -# -# Hardware I/O ports -# -# CONFIG_SERIO is not set -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -# CONFIG_VT is not set -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# -CONFIG_V850E_UART=y -CONFIG_V850E_UART_CONSOLE=y -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_SERIAL_JSM is not set -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set - -# -# IPMI -# -# CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set -# CONFIG_RTC is not set -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set -# CONFIG_R3964 is not set -# CONFIG_APPLICOM is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_DRM is not set -# CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set - -# -# Digital Video Broadcasting Devices -# -# CONFIG_DVB is not set - -# -# File systems -# -# CONFIG_EXT2_FS is not set -# CONFIG_EXT3_FS is not set -# CONFIG_JBD is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set - -# -# XFS support -# -# CONFIG_XFS_FS is not set -# CONFIG_MINIX_FS is not set -CONFIG_ROMFS_FS=y -# CONFIG_MAGIC_ROM_PTR is not set -CONFIG_INOTIFY=y -# CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set - -# -# CD-ROM/DVD Filesystems -# -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set - -# -# DOS/FAT/NT Filesystems -# -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -CONFIG_SYSFS=y -# CONFIG_TMPFS is not set -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y - -# -# Miscellaneous filesystems -# -# CONFIG_HFSPLUS_FS is not set -# CONFIG_JFFS_FS is not set -# CONFIG_JFFS2_FS is not set -# CONFIG_CRAMFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set - -# -# Network File Systems -# -CONFIG_NFS_FS=y -CONFIG_NFS_V3=y -# CONFIG_NFS_V3_ACL is not set -# CONFIG_NFSD is not set -CONFIG_LOCKD=y -CONFIG_LOCKD_V4=y -CONFIG_NFS_COMMON=y -CONFIG_SUNRPC=y -# CONFIG_SMB_FS is not set -# CONFIG_CIFS is not set -# CONFIG_NCP_FS is not set -# CONFIG_CODA_FS is not set - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# -# CONFIG_NLS is not set - -# -# Graphics support -# -# CONFIG_FB is not set - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# USB support -# -CONFIG_USB_ARCH_HAS_HCD=y -CONFIG_USB_ARCH_HAS_OHCI=y -# CONFIG_USB is not set - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -CONFIG_DEBUG_KERNEL=y -# CONFIG_MAGIC_SYSRQ is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_SCHEDSTATS is not set -# CONFIG_DEBUG_SLAB is not set -# CONFIG_DEBUG_SPINLOCK is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set -# CONFIG_DEBUG_KOBJECT is not set -CONFIG_DEBUG_INFO=y -# CONFIG_DEBUG_FS is not set -# CONFIG_NO_KERNEL_MSG is not set - -# -# Security options -# -# CONFIG_KEYS is not set -# CONFIG_SECURITY is not set - -# -# Cryptographic options -# -# CONFIG_CRYPTO is not set - -# -# Hardware crypto devices -# - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC32 is not set -# CONFIG_LIBCRC32C is not set diff --git a/arch/v850/configs/rte-me2-cb_defconfig b/arch/v850/configs/rte-me2-cb_defconfig deleted file mode 100644 index 15e666478061..000000000000 --- a/arch/v850/configs/rte-me2-cb_defconfig +++ /dev/null @@ -1,462 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.13-uc0 -# Fri Sep 2 13:47:50 2005 -# -# CONFIG_MMU is not set -# CONFIG_UID16 is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set -CONFIG_GENERIC_CALIBRATE_DELAY=y -# CONFIG_ISA is not set -# CONFIG_ISAPNP is not set -# CONFIG_EISA is not set -# CONFIG_MCA is not set -CONFIG_V850=y - -# -# Processor type and features -# -# CONFIG_V850E_SIM is not set -# CONFIG_RTE_CB_MA1 is not set -# CONFIG_RTE_CB_NB85E is not set -CONFIG_RTE_CB_ME2=y -# CONFIG_V850E_AS85EP1 is not set -# CONFIG_V850E2_SIM85E2C is not set -# CONFIG_V850E2_SIM85E2S is not set -# CONFIG_V850E2_FPGA85E2C is not set -# CONFIG_V850E2_ANNA is not set -CONFIG_V850E=y -CONFIG_V850E_ME2=y -CONFIG_RTE_CB=y -# CONFIG_RTE_MB_A_PCI is not set -# CONFIG_PCI is not set -CONFIG_V850E_INTC=y -CONFIG_V850E_TIMER_D=y -CONFIG_V850E_CACHE=y -# CONFIG_V850E2_CACHE is not set -# CONFIG_NO_CACHE is not set -# CONFIG_ROM_KERNEL is not set -CONFIG_ZERO_BSS=y -# CONFIG_V850E_HIGHRES_TIMER is not set -# CONFIG_RESET_GUARD is not set -CONFIG_LARGE_ALLOCS=y -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y - -# -# Code maturity level options -# -# CONFIG_EXPERIMENTAL is not set -CONFIG_CLEAN_COMPILE=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# -CONFIG_LOCALVERSION="" -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_SYSCTL is not set -# CONFIG_HOTPLUG is not set -# CONFIG_IKCONFIG is not set -CONFIG_EMBEDDED=y -# CONFIG_KALLSYMS is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -# CONFIG_BASE_FULL is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -CONFIG_CC_OPTIMIZE_FOR_SIZE=y -CONFIG_CC_ALIGN_FUNCTIONS=0 -CONFIG_CC_ALIGN_LABELS=0 -CONFIG_CC_ALIGN_LOOPS=0 -CONFIG_CC_ALIGN_JUMPS=0 -CONFIG_BASE_SMALL=1 - -# -# Loadable module support -# -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -CONFIG_OBSOLETE_MODPARM=y -# CONFIG_MODULE_SRCVERSION_ALL is not set -CONFIG_KMOD=y - -# -# Bus options (PCI, PCMCIA, EISA, MCA, ISA) -# - -# -# PCCARD (PCMCIA/CardBus) support -# -# CONFIG_PCCARD is not set - -# -# PCI Hotplug Support -# - -# -# Executable file formats -# -CONFIG_BINFMT_FLAT=y -# CONFIG_BINFMT_ZFLAT is not set -# CONFIG_BINFMT_SHARED_FLAT is not set -# CONFIG_BINFMT_MISC is not set - -# -# Networking -# -# CONFIG_NET is not set - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set -# CONFIG_DEBUG_DRIVER is not set - -# -# Memory Technology Devices (MTD) -# -CONFIG_MTD=y -# CONFIG_MTD_DEBUG is not set -# CONFIG_MTD_CONCAT is not set -# CONFIG_MTD_PARTITIONS is not set - -# -# User Modules And Translation Layers -# -# CONFIG_MTD_CHAR is not set -CONFIG_MTD_BLOCK=y -# CONFIG_FTL is not set -# CONFIG_NFTL is not set -# CONFIG_INFTL is not set - -# -# RAM/ROM/Flash chip drivers -# -# CONFIG_MTD_CFI is not set -# CONFIG_MTD_JEDECPROBE is not set -CONFIG_MTD_MAP_BANK_WIDTH_1=y -CONFIG_MTD_MAP_BANK_WIDTH_2=y -CONFIG_MTD_MAP_BANK_WIDTH_4=y -# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set -CONFIG_MTD_CFI_I1=y -CONFIG_MTD_CFI_I2=y -# CONFIG_MTD_CFI_I4 is not set -# CONFIG_MTD_CFI_I8 is not set -# CONFIG_MTD_RAM is not set -# CONFIG_MTD_ROM is not set -# CONFIG_MTD_ABSENT is not set - -# -# Mapping drivers for chip access -# -# CONFIG_MTD_COMPLEX_MAPPINGS is not set -# CONFIG_MTD_PLATRAM is not set - -# -# Self-contained MTD device drivers -# -CONFIG_MTD_SLRAM=y -# CONFIG_MTD_PHRAM is not set -# CONFIG_MTD_MTDRAM is not set -# CONFIG_MTD_BLKMTD is not set - -# -# Disk-On-Chip Device Drivers -# -# CONFIG_MTD_DOC2000 is not set -# CONFIG_MTD_DOC2001 is not set -# CONFIG_MTD_DOC2001PLUS is not set - -# -# NAND Flash Device Drivers -# -# CONFIG_MTD_NAND is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Block devices -# -# CONFIG_BLK_DEV_FD is not set -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set -# CONFIG_BLK_DEV_RAM is not set -CONFIG_BLK_DEV_RAM_COUNT=16 -CONFIG_INITRAMFS_SOURCE="" -# CONFIG_CDROM_PKTCDVD is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -# CONFIG_IOSCHED_AS is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set - -# -# Disk device support -# - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set - -# -# SCSI device support -# -# CONFIG_SCSI is not set - -# -# Multi-device support (RAID and LVM) -# -# CONFIG_MD is not set - -# -# Fusion MPT device support -# -# CONFIG_FUSION is not set - -# -# IEEE 1394 (FireWire) support -# - -# -# I2O device support -# - -# -# Network device support -# -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# - -# -# Input device support -# -CONFIG_INPUT=y - -# -# Userland interfaces -# -# CONFIG_INPUT_MOUSEDEV is not set -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set - -# -# Input Device Drivers -# -# CONFIG_INPUT_KEYBOARD is not set -# CONFIG_INPUT_MOUSE is not set -# CONFIG_INPUT_JOYSTICK is not set -# CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set - -# -# Hardware I/O ports -# -CONFIG_SERIO=y -# CONFIG_SERIO_I8042 is not set -# CONFIG_SERIO_SERPORT is not set -# CONFIG_SERIO_LIBPS2 is not set -# CONFIG_SERIO_RAW is not set -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -# CONFIG_VT is not set -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -CONFIG_SERIAL_8250=y -CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_SERIAL_8250_NR_UARTS=1 -# CONFIG_SERIAL_8250_EXTENDED is not set - -# -# Non-8250 serial port support -# -# CONFIG_V850E_UART is not set -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set - -# -# IPMI -# -# CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set -# CONFIG_RTC is not set -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set -# CONFIG_R3964 is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set - -# -# Digital Video Broadcasting Devices -# - -# -# File systems -# -# CONFIG_EXT2_FS is not set -# CONFIG_EXT3_FS is not set -# CONFIG_JBD is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set - -# -# XFS support -# -# CONFIG_XFS_FS is not set -# CONFIG_MINIX_FS is not set -CONFIG_ROMFS_FS=y -# CONFIG_MAGIC_ROM_PTR is not set -CONFIG_INOTIFY=y -# CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set - -# -# CD-ROM/DVD Filesystems -# -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set - -# -# DOS/FAT/NT Filesystems -# -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -CONFIG_SYSFS=y -# CONFIG_TMPFS is not set -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y - -# -# Miscellaneous filesystems -# -# CONFIG_HFSPLUS_FS is not set -# CONFIG_JFFS_FS is not set -# CONFIG_JFFS2_FS is not set -# CONFIG_CRAMFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# -# CONFIG_NLS is not set - -# -# Graphics support -# -# CONFIG_FB is not set - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# USB support -# -# CONFIG_USB_ARCH_HAS_HCD is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -CONFIG_DEBUG_KERNEL=y -# CONFIG_MAGIC_SYSRQ is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_SCHEDSTATS is not set -# CONFIG_DEBUG_SLAB is not set -# CONFIG_DEBUG_SPINLOCK is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set -# CONFIG_DEBUG_KOBJECT is not set -CONFIG_DEBUG_INFO=y -# CONFIG_DEBUG_FS is not set -# CONFIG_NO_KERNEL_MSG is not set - -# -# Security options -# -# CONFIG_KEYS is not set -# CONFIG_SECURITY is not set - -# -# Cryptographic options -# -# CONFIG_CRYPTO is not set - -# -# Hardware crypto devices -# - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC32 is not set -# CONFIG_LIBCRC32C is not set diff --git a/arch/v850/configs/sim_defconfig b/arch/v850/configs/sim_defconfig deleted file mode 100644 index f31ba7398ad0..000000000000 --- a/arch/v850/configs/sim_defconfig +++ /dev/null @@ -1,451 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.13-uc0 -# Fri Sep 2 13:36:43 2005 -# -# CONFIG_MMU is not set -# CONFIG_UID16 is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set -CONFIG_GENERIC_CALIBRATE_DELAY=y -# CONFIG_ISA is not set -# CONFIG_ISAPNP is not set -# CONFIG_EISA is not set -# CONFIG_MCA is not set -CONFIG_V850=y - -# -# Processor type and features -# -CONFIG_V850E_SIM=y -# CONFIG_RTE_CB_MA1 is not set -# CONFIG_RTE_CB_NB85E is not set -# CONFIG_RTE_CB_ME2 is not set -# CONFIG_V850E_AS85EP1 is not set -# CONFIG_V850E2_SIM85E2C is not set -# CONFIG_V850E2_SIM85E2S is not set -# CONFIG_V850E2_FPGA85E2C is not set -# CONFIG_V850E2_ANNA is not set -CONFIG_V850E=y -# CONFIG_PCI is not set -# CONFIG_V850E_INTC is not set -# CONFIG_V850E_TIMER_D is not set -# CONFIG_V850E_CACHE is not set -# CONFIG_V850E2_CACHE is not set -CONFIG_NO_CACHE=y -CONFIG_ZERO_BSS=y -# CONFIG_RESET_GUARD is not set -CONFIG_LARGE_ALLOCS=y -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y - -# -# Code maturity level options -# -# CONFIG_EXPERIMENTAL is not set -CONFIG_CLEAN_COMPILE=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# -CONFIG_LOCALVERSION="" -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_SYSCTL is not set -# CONFIG_HOTPLUG is not set -# CONFIG_IKCONFIG is not set -CONFIG_EMBEDDED=y -# CONFIG_KALLSYMS is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -# CONFIG_BASE_FULL is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -CONFIG_CC_OPTIMIZE_FOR_SIZE=y -CONFIG_CC_ALIGN_FUNCTIONS=0 -CONFIG_CC_ALIGN_LABELS=0 -CONFIG_CC_ALIGN_LOOPS=0 -CONFIG_CC_ALIGN_JUMPS=0 -CONFIG_BASE_SMALL=1 - -# -# Loadable module support -# -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -CONFIG_OBSOLETE_MODPARM=y -# CONFIG_MODULE_SRCVERSION_ALL is not set -CONFIG_KMOD=y - -# -# Bus options (PCI, PCMCIA, EISA, MCA, ISA) -# - -# -# PCCARD (PCMCIA/CardBus) support -# -# CONFIG_PCCARD is not set - -# -# PCI Hotplug Support -# - -# -# Executable file formats -# -CONFIG_BINFMT_FLAT=y -# CONFIG_BINFMT_ZFLAT is not set -# CONFIG_BINFMT_SHARED_FLAT is not set -# CONFIG_BINFMT_MISC is not set - -# -# Networking -# -# CONFIG_NET is not set - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set -# CONFIG_DEBUG_DRIVER is not set - -# -# Memory Technology Devices (MTD) -# -CONFIG_MTD=y -# CONFIG_MTD_DEBUG is not set -# CONFIG_MTD_CONCAT is not set -# CONFIG_MTD_PARTITIONS is not set - -# -# User Modules And Translation Layers -# -# CONFIG_MTD_CHAR is not set -CONFIG_MTD_BLOCK=y -# CONFIG_FTL is not set -# CONFIG_NFTL is not set -# CONFIG_INFTL is not set - -# -# RAM/ROM/Flash chip drivers -# -# CONFIG_MTD_CFI is not set -# CONFIG_MTD_JEDECPROBE is not set -CONFIG_MTD_MAP_BANK_WIDTH_1=y -CONFIG_MTD_MAP_BANK_WIDTH_2=y -CONFIG_MTD_MAP_BANK_WIDTH_4=y -# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set -CONFIG_MTD_CFI_I1=y -CONFIG_MTD_CFI_I2=y -# CONFIG_MTD_CFI_I4 is not set -# CONFIG_MTD_CFI_I8 is not set -# CONFIG_MTD_RAM is not set -# CONFIG_MTD_ROM is not set -# CONFIG_MTD_ABSENT is not set - -# -# Mapping drivers for chip access -# -# CONFIG_MTD_COMPLEX_MAPPINGS is not set -# CONFIG_MTD_PLATRAM is not set - -# -# Self-contained MTD device drivers -# -CONFIG_MTD_SLRAM=y -# CONFIG_MTD_PHRAM is not set -# CONFIG_MTD_MTDRAM is not set -# CONFIG_MTD_BLKMTD is not set - -# -# Disk-On-Chip Device Drivers -# -# CONFIG_MTD_DOC2000 is not set -# CONFIG_MTD_DOC2001 is not set -# CONFIG_MTD_DOC2001PLUS is not set - -# -# NAND Flash Device Drivers -# -# CONFIG_MTD_NAND is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Block devices -# -# CONFIG_BLK_DEV_FD is not set -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set -# CONFIG_BLK_DEV_RAM is not set -CONFIG_BLK_DEV_RAM_COUNT=16 -CONFIG_INITRAMFS_SOURCE="" -# CONFIG_CDROM_PKTCDVD is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -# CONFIG_IOSCHED_AS is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set - -# -# Disk device support -# - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set - -# -# SCSI device support -# -# CONFIG_SCSI is not set - -# -# Multi-device support (RAID and LVM) -# -# CONFIG_MD is not set - -# -# Fusion MPT device support -# -# CONFIG_FUSION is not set - -# -# IEEE 1394 (FireWire) support -# - -# -# I2O device support -# - -# -# Network device support -# -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# - -# -# Input device support -# -CONFIG_INPUT=y - -# -# Userland interfaces -# -# CONFIG_INPUT_MOUSEDEV is not set -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set - -# -# Input Device Drivers -# -# CONFIG_INPUT_KEYBOARD is not set -# CONFIG_INPUT_MOUSE is not set -# CONFIG_INPUT_JOYSTICK is not set -# CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set - -# -# Hardware I/O ports -# -CONFIG_SERIO=y -# CONFIG_SERIO_I8042 is not set -# CONFIG_SERIO_SERPORT is not set -# CONFIG_SERIO_LIBPS2 is not set -# CONFIG_SERIO_RAW is not set -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -# CONFIG_VT is not set -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set - -# -# IPMI -# -# CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set -# CONFIG_RTC is not set -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set -# CONFIG_R3964 is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set - -# -# Digital Video Broadcasting Devices -# - -# -# File systems -# -# CONFIG_EXT2_FS is not set -# CONFIG_EXT3_FS is not set -# CONFIG_JBD is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set - -# -# XFS support -# -# CONFIG_XFS_FS is not set -# CONFIG_MINIX_FS is not set -CONFIG_ROMFS_FS=y -# CONFIG_MAGIC_ROM_PTR is not set -CONFIG_INOTIFY=y -# CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set - -# -# CD-ROM/DVD Filesystems -# -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set - -# -# DOS/FAT/NT Filesystems -# -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -CONFIG_SYSFS=y -# CONFIG_TMPFS is not set -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y - -# -# Miscellaneous filesystems -# -# CONFIG_HFSPLUS_FS is not set -# CONFIG_JFFS_FS is not set -# CONFIG_JFFS2_FS is not set -# CONFIG_CRAMFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# -# CONFIG_NLS is not set - -# -# Graphics support -# -# CONFIG_FB is not set - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# USB support -# -# CONFIG_USB_ARCH_HAS_HCD is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -CONFIG_DEBUG_KERNEL=y -# CONFIG_MAGIC_SYSRQ is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_SCHEDSTATS is not set -# CONFIG_DEBUG_SLAB is not set -# CONFIG_DEBUG_SPINLOCK is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set -# CONFIG_DEBUG_KOBJECT is not set -CONFIG_DEBUG_INFO=y -# CONFIG_DEBUG_FS is not set -# CONFIG_NO_KERNEL_MSG is not set - -# -# Security options -# -# CONFIG_KEYS is not set -# CONFIG_SECURITY is not set - -# -# Cryptographic options -# -# CONFIG_CRYPTO is not set - -# -# Hardware crypto devices -# - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC32 is not set -# CONFIG_LIBCRC32C is not set diff --git a/arch/v850/kernel/Makefile b/arch/v850/kernel/Makefile deleted file mode 100644 index da5889c53576..000000000000 --- a/arch/v850/kernel/Makefile +++ /dev/null @@ -1,40 +0,0 @@ -# -# arch/v850/kernel/Makefile -# -# Copyright (C) 2001,02,03 NEC Electronics Corporation -# Copyright (C) 2001,02,03 Miles Bader -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# - -extra-y := head.o init_task.o vmlinux.lds - -obj-y += intv.o entry.o process.o syscalls.o time.o setup.o \ - signal.o irq.o mach.o ptrace.o bug.o -obj-$(CONFIG_MODULES) += module.o v850_ksyms.o -# chip-specific code -obj-$(CONFIG_V850E_MA1) += ma.o -obj-$(CONFIG_V850E_ME2) += me2.o -obj-$(CONFIG_V850E_TEG) += teg.o -obj-$(CONFIG_V850E_AS85EP1) += as85ep1.o -obj-$(CONFIG_V850E2_ANNA) += anna.o -# platform-specific code -obj-$(CONFIG_V850E_SIM) += sim.o simcons.o -obj-$(CONFIG_V850E2_SIM85E2) += sim85e2.o memcons.o -obj-$(CONFIG_V850E2_FPGA85E2C) += fpga85e2c.o memcons.o -obj-$(CONFIG_RTE_CB) += rte_cb.o rte_cb_leds.o -obj-$(CONFIG_RTE_CB_MA1) += rte_ma1_cb.o -obj-$(CONFIG_RTE_CB_ME2) += rte_me2_cb.o -obj-$(CONFIG_RTE_CB_NB85E) += rte_nb85e_cb.o -obj-$(CONFIG_RTE_CB_MULTI) += rte_cb_multi.o -obj-$(CONFIG_RTE_MB_A_PCI) += rte_mb_a_pci.o -obj-$(CONFIG_RTE_GBUS_INT) += gbus_int.o -# feature-specific code -obj-$(CONFIG_V850E_INTC) += v850e_intc.o -obj-$(CONFIG_V850E_TIMER_D) += v850e_timer_d.o v850e_utils.o -obj-$(CONFIG_V850E_CACHE) += v850e_cache.o -obj-$(CONFIG_V850E2_CACHE) += v850e2_cache.o -obj-$(CONFIG_V850E_HIGHRES_TIMER) += highres_timer.o -obj-$(CONFIG_PROC_FS) += procfs.o diff --git a/arch/v850/kernel/anna-rom.ld b/arch/v850/kernel/anna-rom.ld deleted file mode 100644 index 7c54e7e3f1b1..000000000000 --- a/arch/v850/kernel/anna-rom.ld +++ /dev/null @@ -1,16 +0,0 @@ -/* Linker script for the Midas labs Anna V850E2 evaluation board - (CONFIG_V850E2_ANNA), with kernel in ROM (CONFIG_ROM_KERNEL). */ - -MEMORY { - /* 8MB of flash ROM. */ - ROM : ORIGIN = 0, LENGTH = 0x00800000 - - /* 1MB of static RAM. This memory is mirrored 64 times. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE - /* 64MB of DRAM. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -SECTIONS { - ROMK_SECTIONS(ROM, SRAM) -} diff --git a/arch/v850/kernel/anna.c b/arch/v850/kernel/anna.c deleted file mode 100644 index 5978a25170fb..000000000000 --- a/arch/v850/kernel/anna.c +++ /dev/null @@ -1,202 +0,0 @@ -/* - * arch/v850/kernel/anna.c -- Anna V850E2 evaluation chip/board - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "mach.h" - - -/* SRAM and SDRAM are vaguely contiguous (with a big hole in between; see - mach_reserve_bootmem for details); use both as one big area. */ -#define RAM_START SRAM_ADDR -#define RAM_END (SDRAM_ADDR + SDRAM_SIZE) - -/* The bits of this port are connected to an 8-LED bar-graph. */ -#define LEDS_PORT 0 - - -static void anna_led_tick (void); - - -void __init mach_early_init (void) -{ - ANNA_ILBEN = 0; - - V850E2_CSC(0) = 0x402F; - V850E2_CSC(1) = 0x4000; - V850E2_BPC = 0; - V850E2_BSC = 0xAAAA; - V850E2_BEC = 0; - -#if 0 - V850E2_BHC = 0xFFFF; /* icache all memory, dcache all */ -#else - V850E2_BHC = 0; /* cache no memory */ -#endif - V850E2_BCT(0) = 0xB088; - V850E2_BCT(1) = 0x0008; - V850E2_DWC(0) = 0x0027; - V850E2_DWC(1) = 0; - V850E2_BCC = 0x0006; - V850E2_ASC = 0; - V850E2_LBS = 0x0089; - V850E2_SCR(3) = 0x21A9; - V850E2_RFS(3) = 0x8121; - - v850e_intc_disable_irqs (); -} - -void __init mach_setup (char **cmdline) -{ - ANNA_PORT_PM (LEDS_PORT) = 0; /* Make all LED pins output pins. */ - mach_tick = anna_led_tick; -} - -void __init mach_get_physical_ram (unsigned long *ram_start, - unsigned long *ram_len) -{ - *ram_start = RAM_START; - *ram_len = RAM_END - RAM_START; -} - -void __init mach_reserve_bootmem () -{ - /* The space between SRAM and SDRAM is filled with duplicate - images of SRAM. Prevent the kernel from using them. */ - reserve_bootmem (SRAM_ADDR + SRAM_SIZE, - SDRAM_ADDR - (SRAM_ADDR + SRAM_SIZE), - BOOTMEM_DEFAULT); -} - -void mach_gettimeofday (struct timespec *tv) -{ - tv->tv_sec = 0; - tv->tv_nsec = 0; -} - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* Start hardware timer. */ - v850e_timer_d_configure (0, HZ); - /* Install timer interrupt handler. */ - setup_irq (IRQ_INTCMD(0), timer_action); -} - -static struct v850e_intc_irq_init irq_inits[] = { - { "IRQ", 0, NUM_MACH_IRQS, 1, 7 }, - { "PIN", IRQ_INTP(0), IRQ_INTP_NUM, 1, 4 }, - { "CCC", IRQ_INTCCC(0), IRQ_INTCCC_NUM, 1, 5 }, - { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 }, - { "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 }, - { "DMXER", IRQ_INTDMXER,1, 1, 2 }, - { "SRE", IRQ_INTSRE(0), IRQ_INTSRE_NUM, 3, 3 }, - { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 3, 4 }, - { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 3, 5 }, - { 0 } -}; -#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1) - -static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; - -void __init mach_init_irqs (void) -{ - v850e_intc_init_irq_types (irq_inits, hw_itypes); -} - -void machine_restart (char *__unused) -{ -#ifdef CONFIG_RESET_GUARD - disable_reset_guard (); -#endif - asm ("jmp r0"); /* Jump to the reset vector. */ -} - -void machine_halt (void) -{ -#ifdef CONFIG_RESET_GUARD - disable_reset_guard (); -#endif - local_irq_disable (); /* Ignore all interrupts. */ - ANNA_PORT_IO(LEDS_PORT) = 0xAA; /* Note that we halted. */ - for (;;) - asm ("halt; nop; nop; nop; nop; nop"); -} - -void machine_power_off (void) -{ - machine_halt (); -} - -/* Called before configuring an on-chip UART. */ -void anna_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) -{ - /* The Anna connects some general-purpose I/O pins on the CPU to - the RTS/CTS lines of UART 1's serial connection. I/O pins P07 - and P37 are RTS and CTS respectively. */ - if (chan == 1) { - ANNA_PORT_PM(0) &= ~0x80; /* P07 in output mode */ - ANNA_PORT_PM(3) |= 0x80; /* P37 in input mode */ - } -} - -/* Minimum and maximum bounds for the moving upper LED boundary in the - clock tick display. We can't use the last bit because it's used for - UART0's CTS output. */ -#define MIN_MAX_POS 0 -#define MAX_MAX_POS 6 - -/* There are MAX_MAX_POS^2 - MIN_MAX_POS^2 cycles in the animation, so if - we pick 6 and 0 as above, we get 49 cycles, which is when divided into - the standard 100 value for HZ, gives us an almost 1s total time. */ -#define TICKS_PER_FRAME \ - (HZ / (MAX_MAX_POS * MAX_MAX_POS - MIN_MAX_POS * MIN_MAX_POS)) - -static void anna_led_tick () -{ - static unsigned counter = 0; - - if (++counter == TICKS_PER_FRAME) { - static int pos = 0, max_pos = MAX_MAX_POS, dir = 1; - - if (dir > 0 && pos == max_pos) { - dir = -1; - if (max_pos == MIN_MAX_POS) - max_pos = MAX_MAX_POS; - else - max_pos--; - } else { - if (dir < 0 && pos == 0) - dir = 1; - - if (pos + dir <= max_pos) { - /* Each bit of port 0 has a LED. */ - clear_bit (pos, &ANNA_PORT_IO(LEDS_PORT)); - pos += dir; - set_bit (pos, &ANNA_PORT_IO(LEDS_PORT)); - } - } - - counter = 0; - } -} diff --git a/arch/v850/kernel/anna.ld b/arch/v850/kernel/anna.ld deleted file mode 100644 index df7f80f2833d..000000000000 --- a/arch/v850/kernel/anna.ld +++ /dev/null @@ -1,20 +0,0 @@ -/* Linker script for the Midas labs Anna V850E2 evaluation board - (CONFIG_V850E2_ANNA). */ - -MEMORY { - /* 256KB of internal memory (followed by one mirror). */ - iMEM0 : ORIGIN = 0, LENGTH = 0x00040000 - /* 256KB of internal memory (followed by one mirror). */ - iMEM1 : ORIGIN = 0x00040000, LENGTH = 0x00040000 - - /* 1MB of static RAM. This memory is mirrored 64 times. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE - /* 64MB of DRAM. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -SECTIONS { - .intv : { INTV_CONTENTS } > iMEM0 - .sram : { RAMK_KRAM_CONTENTS } > SRAM - .root : { ROOT_FS_CONTENTS } > SDRAM -} diff --git a/arch/v850/kernel/as85ep1-rom.ld b/arch/v850/kernel/as85ep1-rom.ld deleted file mode 100644 index fe2a9a3ab525..000000000000 --- a/arch/v850/kernel/as85ep1-rom.ld +++ /dev/null @@ -1,21 +0,0 @@ -/* Linker script for the NEC AS85EP1 V850E evaluation board - (CONFIG_V850E_AS85EP1), with kernel in ROM (CONFIG_ROM_KERNEL). */ - -MEMORY { - /* 4MB of flash ROM. */ - ROM : ORIGIN = 0, LENGTH = 0x00400000 - - /* 1MB of static RAM. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE - - /* About 58MB of DRAM. This can actually be at one of two - positions, determined by jumper JP3; we have to use the first - position because the second is partially out of processor - instruction addressing range (though in the second position - there's actually 64MB available). */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -SECTIONS { - ROMK_SECTIONS(ROM, SRAM) -} diff --git a/arch/v850/kernel/as85ep1.c b/arch/v850/kernel/as85ep1.c deleted file mode 100644 index b525ecf3aea4..000000000000 --- a/arch/v850/kernel/as85ep1.c +++ /dev/null @@ -1,234 +0,0 @@ -/* - * arch/v850/kernel/as85ep1.c -- AS85EP1 V850E evaluation chip/board - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "mach.h" - - -/* SRAM and SDRAM are vaguely contiguous (with a big hole in between; see - mach_reserve_bootmem for details); use both as one big area. */ -#define RAM_START SRAM_ADDR -#define RAM_END (SDRAM_ADDR + SDRAM_SIZE) - -/* The bits of this port are connected to an 8-LED bar-graph. */ -#define LEDS_PORT 4 - - -static void as85ep1_led_tick (void); - -extern char _intv_copy_src_start, _intv_copy_src_end; -extern char _intv_copy_dst_start; - - -void __init mach_early_init (void) -{ -#ifndef CONFIG_ROM_KERNEL - const u32 *src; - register u32 *dst asm ("ep"); -#endif - - AS85EP1_CSC(0) = 0x0403; - AS85EP1_BCT(0) = 0xB8B8; - AS85EP1_DWC(0) = 0x0104; - AS85EP1_BCC = 0x0012; - AS85EP1_ASC = 0; - AS85EP1_LBS = 0x00A9; - - AS85EP1_PORT_PMC(6) = 0xFF; /* valid A0,A1,A20-A25 */ - AS85EP1_PORT_PMC(7) = 0x0E; /* valid CS1-CS3 */ - AS85EP1_PORT_PMC(9) = 0xFF; /* valid D16-D23 */ - AS85EP1_PORT_PMC(10) = 0xFF; /* valid D24-D31 */ - - AS85EP1_RFS(1) = 0x800c; - AS85EP1_RFS(3) = 0x800c; - AS85EP1_SCR(1) = 0x20A9; - AS85EP1_SCR(3) = 0x20A9; - -#ifndef CONFIG_ROM_KERNEL - /* The early chip we have is buggy, and writing the interrupt - vectors into low RAM may screw up, so for non-ROM kernels, we - only rely on the reset vector being downloaded, and copy the - rest of the interrupt vectors into place here. The specific bug - is that writing address N, where (N & 0x10) == 0x10, will _also_ - write to address (N - 0x10). We avoid this (effectively) by - writing in 16-byte chunks backwards from the end. */ - - AS85EP1_IRAMM = 0x3; /* "write-mode" for the internal instruction memory */ - - src = (u32 *)(((u32)&_intv_copy_src_end - 1) & ~0xF); - dst = (u32 *)&_intv_copy_dst_start - + (src - (u32 *)&_intv_copy_src_start); - do { - u32 t0 = src[0], t1 = src[1], t2 = src[2], t3 = src[3]; - dst[0] = t0; dst[1] = t1; dst[2] = t2; dst[3] = t3; - dst -= 4; - src -= 4; - } while (src > (u32 *)&_intv_copy_src_start); - - AS85EP1_IRAMM = 0x0; /* "read-mode" for the internal instruction memory */ -#endif /* !CONFIG_ROM_KERNEL */ - - v850e_intc_disable_irqs (); -} - -void __init mach_setup (char **cmdline) -{ - AS85EP1_PORT_PMC (LEDS_PORT) = 0; /* Make the LEDs port an I/O port. */ - AS85EP1_PORT_PM (LEDS_PORT) = 0; /* Make all the bits output pins. */ - mach_tick = as85ep1_led_tick; -} - -void __init mach_get_physical_ram (unsigned long *ram_start, - unsigned long *ram_len) -{ - *ram_start = RAM_START; - *ram_len = RAM_END - RAM_START; -} - -/* Convenience macros. */ -#define SRAM_END (SRAM_ADDR + SRAM_SIZE) -#define SDRAM_END (SDRAM_ADDR + SDRAM_SIZE) - -void __init mach_reserve_bootmem () -{ - if (SDRAM_ADDR < RAM_END && SDRAM_ADDR > RAM_START) - /* We can't use the space between SRAM and SDRAM, so - prevent the kernel from trying. */ - reserve_bootmem(SRAM_END, SDRAM_ADDR - SRAM_END, - BOOTMEM_DEFAULT); -} - -void mach_gettimeofday (struct timespec *tv) -{ - tv->tv_sec = 0; - tv->tv_nsec = 0; -} - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* Start hardware timer. */ - v850e_timer_d_configure (0, HZ); - /* Install timer interrupt handler. */ - setup_irq (IRQ_INTCMD(0), timer_action); -} - -static struct v850e_intc_irq_init irq_inits[] = { - { "IRQ", 0, NUM_MACH_IRQS, 1, 7 }, - { "CCC", IRQ_INTCCC(0), IRQ_INTCCC_NUM, 1, 5 }, - { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 }, - { "SRE", IRQ_INTSRE(0), IRQ_INTSRE_NUM, 3, 3 }, - { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 3, 4 }, - { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 3, 5 }, - { 0 } -}; -#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1) - -static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; - -void __init mach_init_irqs (void) -{ - v850e_intc_init_irq_types (irq_inits, hw_itypes); -} - -void machine_restart (char *__unused) -{ -#ifdef CONFIG_RESET_GUARD - disable_reset_guard (); -#endif - asm ("jmp r0"); /* Jump to the reset vector. */ -} - -void machine_halt (void) -{ -#ifdef CONFIG_RESET_GUARD - disable_reset_guard (); -#endif - local_irq_disable (); /* Ignore all interrupts. */ - AS85EP1_PORT_IO (LEDS_PORT) = 0xAA; /* Note that we halted. */ - for (;;) - asm ("halt; nop; nop; nop; nop; nop"); -} - -void machine_power_off (void) -{ - machine_halt (); -} - -/* Called before configuring an on-chip UART. */ -void as85ep1_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) -{ - /* Make the shared uart/port pins be uart pins. */ - AS85EP1_PORT_PMC(3) |= (0x5 << chan); - - /* The AS85EP1 connects some general-purpose I/O pins on the CPU to - the RTS/CTS lines of UART 1's serial connection. I/O pins P53 - and P54 are RTS and CTS respectively. */ - if (chan == 1) { - /* Put P53 & P54 in I/O port mode. */ - AS85EP1_PORT_PMC(5) &= ~0x18; - /* Make P53 an output, and P54 an input. */ - AS85EP1_PORT_PM(5) |= 0x10; - } -} - -/* Minimum and maximum bounds for the moving upper LED boundary in the - clock tick display. */ -#define MIN_MAX_POS 0 -#define MAX_MAX_POS 7 - -/* There are MAX_MAX_POS^2 - MIN_MAX_POS^2 cycles in the animation, so if - we pick 6 and 0 as above, we get 49 cycles, which is when divided into - the standard 100 value for HZ, gives us an almost 1s total time. */ -#define TICKS_PER_FRAME \ - (HZ / (MAX_MAX_POS * MAX_MAX_POS - MIN_MAX_POS * MIN_MAX_POS)) - -static void as85ep1_led_tick () -{ - static unsigned counter = 0; - - if (++counter == TICKS_PER_FRAME) { - static int pos = 0, max_pos = MAX_MAX_POS, dir = 1; - - if (dir > 0 && pos == max_pos) { - dir = -1; - if (max_pos == MIN_MAX_POS) - max_pos = MAX_MAX_POS; - else - max_pos--; - } else { - if (dir < 0 && pos == 0) - dir = 1; - - if (pos + dir <= max_pos) { - /* Each bit of port 0 has a LED. */ - set_bit (pos, &AS85EP1_PORT_IO(LEDS_PORT)); - pos += dir; - clear_bit (pos, &AS85EP1_PORT_IO(LEDS_PORT)); - } - } - - counter = 0; - } -} diff --git a/arch/v850/kernel/as85ep1.ld b/arch/v850/kernel/as85ep1.ld deleted file mode 100644 index ef2c4399063e..000000000000 --- a/arch/v850/kernel/as85ep1.ld +++ /dev/null @@ -1,49 +0,0 @@ -/* Linker script for the NEC AS85EP1 V850E evaluation board - (CONFIG_V850E_AS85EP1). */ - -MEMORY { - /* 1MB of internal instruction memory. */ - iMEM0 : ORIGIN = 0, LENGTH = 0x00100000 - - /* 1MB of static RAM. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE - - /* About 58MB of DRAM. This can actually be at one of two - positions, determined by jump JP3; we have to use the first - position because the second is partially out of processor - instruction addressing range (though in the second position - there's actually 64MB available). */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -SECTIONS { - .resetv : { - __intv_start = . ; - *(.intv.reset) /* Reset vector */ - } > iMEM0 - - .sram : { - RAMK_KRAM_CONTENTS - - /* We stick most of the interrupt vectors here; they'll be - copied into the proper location by the early init code (we - can't put them directly in the right place because of - hardware bugs). The vectors shouldn't need to be - relocated, so we don't have to use `> ... AT> ...' to - split the load/vm addresses (and we can't because of - problems with the loader). */ - . = ALIGN (0x10) ; - __intv_copy_src_start = . ; - *(.intv.common) /* Vectors common to all v850e proc. */ - *(.intv.mach) /* Machine-specific int. vectors. */ - . = ALIGN (0x10) ; - __intv_copy_src_end = . ; - } > SRAM - - /* Where we end up putting the vectors. */ - __intv_copy_dst_start = 0x10 ; - __intv_copy_dst_end = __intv_copy_dst_start + (__intv_copy_src_end - __intv_copy_src_start) ; - __intv_end = __intv_copy_dst_end ; - - .root : { ROOT_FS_CONTENTS } > SDRAM -} diff --git a/arch/v850/kernel/asm-offsets.c b/arch/v850/kernel/asm-offsets.c deleted file mode 100644 index 581e6986a776..000000000000 --- a/arch/v850/kernel/asm-offsets.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * This program is used to generate definitions needed by - * assembly language modules. - * - * We use the technique used in the OSF Mach kernel code: - * generate asm statements containing #defines, - * compile this file to assembler, and then extract the - * #defines from the assembly-language output. - */ - -#include -#include -#include -#include -#include -#include - -#include -#include - -int main (void) -{ - /* offsets into the task struct */ - DEFINE (TASK_STATE, offsetof (struct task_struct, state)); - DEFINE (TASK_FLAGS, offsetof (struct task_struct, flags)); - DEFINE (TASK_PTRACE, offsetof (struct task_struct, ptrace)); - DEFINE (TASK_BLOCKED, offsetof (struct task_struct, blocked)); - DEFINE (TASK_THREAD, offsetof (struct task_struct, thread)); - DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, stack)); - DEFINE (TASK_MM, offsetof (struct task_struct, mm)); - DEFINE (TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm)); - DEFINE (TASK_PID, offsetof (struct task_struct, pid)); - - /* offsets into the kernel_stat struct */ - DEFINE (STAT_IRQ, offsetof (struct kernel_stat, irqs)); - - - /* signal defines */ - DEFINE (SIGSEGV, SIGSEGV); - DEFINE (SEGV_MAPERR, SEGV_MAPERR); - DEFINE (SIGTRAP, SIGTRAP); - DEFINE (SIGCHLD, SIGCHLD); - DEFINE (SIGILL, SIGILL); - DEFINE (TRAP_TRACE, TRAP_TRACE); - - /* ptrace flag bits */ - DEFINE (PT_PTRACED, PT_PTRACED); - DEFINE (PT_DTRACE, PT_DTRACE); - - /* error values */ - DEFINE (ENOSYS, ENOSYS); - - /* clone flag bits */ - DEFINE (CLONE_VFORK, CLONE_VFORK); - DEFINE (CLONE_VM, CLONE_VM); - - return 0; -} diff --git a/arch/v850/kernel/bug.c b/arch/v850/kernel/bug.c deleted file mode 100644 index c78cf750915a..000000000000 --- a/arch/v850/kernel/bug.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * arch/v850/kernel/bug.c -- Bug reporting functions - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include - -#include -#include -#include -#include - -/* We should use __builtin_return_address, but it doesn't work in gcc-2.90 - (which is currently our standard compiler on the v850). */ -#define ret_addr() ({ register u32 lp asm ("lp"); lp; }) -#define stack_addr() ({ register u32 sp asm ("sp"); sp; }) - -void __bug () -{ - printk (KERN_CRIT "kernel BUG at PC 0x%x (SP ~0x%x)!\n", - ret_addr() - 4, /* - 4 for `jarl' */ - stack_addr()); - machine_halt (); -} - -int bad_trap (int trap_num, struct pt_regs *regs) -{ - printk (KERN_CRIT - "unimplemented trap %d called at 0x%08lx, pid %d!\n", - trap_num, regs->pc, current->pid); - return -ENOSYS; -} - -#ifdef CONFIG_RESET_GUARD -void unexpected_reset (unsigned long ret_addr, unsigned long kmode, - struct task_struct *task, unsigned long sp) -{ - printk (KERN_CRIT - "unexpected reset in %s mode, pid %d" - " (ret_addr = 0x%lx, sp = 0x%lx)\n", - kmode ? "kernel" : "user", - task ? task->pid : -1, - ret_addr, sp); - - machine_halt (); -} -#endif /* CONFIG_RESET_GUARD */ - - - -struct spec_reg_name { - const char *name; - int gpr; -}; - -struct spec_reg_name spec_reg_names[] = { - { "sp", GPR_SP }, - { "gp", GPR_GP }, - { "tp", GPR_TP }, - { "ep", GPR_EP }, - { "lp", GPR_LP }, - { 0, 0 } -}; - -void show_regs (struct pt_regs *regs) -{ - int gpr_base, gpr_offs; - - printk (" pc 0x%08lx psw 0x%08lx kernel_mode %d\n", - regs->pc, regs->psw, regs->kernel_mode); - printk (" ctpc 0x%08lx ctpsw 0x%08lx ctbp 0x%08lx\n", - regs->ctpc, regs->ctpsw, regs->ctbp); - - for (gpr_base = 0; gpr_base < NUM_GPRS; gpr_base += 4) { - for (gpr_offs = 0; gpr_offs < 4; gpr_offs++) { - int gpr = gpr_base + gpr_offs; - long val = regs->gpr[gpr]; - struct spec_reg_name *srn; - - for (srn = spec_reg_names; srn->name; srn++) - if (srn->gpr == gpr) - break; - - if (srn->name) - printk ("%7s 0x%08lx", srn->name, val); - else - printk (" r%02d 0x%08lx", gpr, val); - } - - printk ("\n"); - } -} - -/* - * TASK is a pointer to the task whose backtrace we want to see (or NULL - * for current task), SP is the stack pointer of the first frame that - * should be shown in the back trace (or NULL if the entire call-chain of - * the task should be shown). - */ -void show_stack (struct task_struct *task, unsigned long *sp) -{ - unsigned long addr, end; - - if (sp) - addr = (unsigned long)sp; - else if (task) - addr = task_sp (task); - else - addr = stack_addr (); - - addr = addr & ~3; - end = (addr + THREAD_SIZE - 1) & THREAD_MASK; - - while (addr < end) { - printk ("%8lX: ", addr); - while (addr < end) { - printk (" %8lX", *(unsigned long *)addr); - addr += sizeof (unsigned long); - if (! (addr & 0xF)) - break; - } - printk ("\n"); - } -} - -void dump_stack () -{ - show_stack (0, 0); -} - -EXPORT_SYMBOL(dump_stack); diff --git a/arch/v850/kernel/entry.S b/arch/v850/kernel/entry.S deleted file mode 100644 index e4327a8d6bcd..000000000000 --- a/arch/v850/kernel/entry.S +++ /dev/null @@ -1,1121 +0,0 @@ -/* - * arch/v850/kernel/entry.S -- Low-level system-call handling, trap handlers, - * and context-switching - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include - -#include -#include -#include -#include -#include -#include -#include - -#include - - -/* Make a slightly more convenient alias for C_SYMBOL_NAME. */ -#define CSYM C_SYMBOL_NAME - - -/* The offset of the struct pt_regs in a state-save-frame on the stack. */ -#define PTO STATE_SAVE_PT_OFFSET - - -/* Save argument registers to the state-save-frame pointed to by EP. */ -#define SAVE_ARG_REGS \ - sst.w r6, PTO+PT_GPR(6)[ep]; \ - sst.w r7, PTO+PT_GPR(7)[ep]; \ - sst.w r8, PTO+PT_GPR(8)[ep]; \ - sst.w r9, PTO+PT_GPR(9)[ep] -/* Restore argument registers from the state-save-frame pointed to by EP. */ -#define RESTORE_ARG_REGS \ - sld.w PTO+PT_GPR(6)[ep], r6; \ - sld.w PTO+PT_GPR(7)[ep], r7; \ - sld.w PTO+PT_GPR(8)[ep], r8; \ - sld.w PTO+PT_GPR(9)[ep], r9 - -/* Save value return registers to the state-save-frame pointed to by EP. */ -#define SAVE_RVAL_REGS \ - sst.w r10, PTO+PT_GPR(10)[ep]; \ - sst.w r11, PTO+PT_GPR(11)[ep] -/* Restore value return registers from the state-save-frame pointed to by EP. */ -#define RESTORE_RVAL_REGS \ - sld.w PTO+PT_GPR(10)[ep], r10; \ - sld.w PTO+PT_GPR(11)[ep], r11 - - -#define SAVE_CALL_CLOBBERED_REGS_BEFORE_ARGS \ - sst.w r1, PTO+PT_GPR(1)[ep]; \ - sst.w r5, PTO+PT_GPR(5)[ep] -#define SAVE_CALL_CLOBBERED_REGS_AFTER_RVAL \ - sst.w r12, PTO+PT_GPR(12)[ep]; \ - sst.w r13, PTO+PT_GPR(13)[ep]; \ - sst.w r14, PTO+PT_GPR(14)[ep]; \ - sst.w r15, PTO+PT_GPR(15)[ep]; \ - sst.w r16, PTO+PT_GPR(16)[ep]; \ - sst.w r17, PTO+PT_GPR(17)[ep]; \ - sst.w r18, PTO+PT_GPR(18)[ep]; \ - sst.w r19, PTO+PT_GPR(19)[ep] -#define RESTORE_CALL_CLOBBERED_REGS_BEFORE_ARGS \ - sld.w PTO+PT_GPR(1)[ep], r1; \ - sld.w PTO+PT_GPR(5)[ep], r5 -#define RESTORE_CALL_CLOBBERED_REGS_AFTER_RVAL \ - sld.w PTO+PT_GPR(12)[ep], r12; \ - sld.w PTO+PT_GPR(13)[ep], r13; \ - sld.w PTO+PT_GPR(14)[ep], r14; \ - sld.w PTO+PT_GPR(15)[ep], r15; \ - sld.w PTO+PT_GPR(16)[ep], r16; \ - sld.w PTO+PT_GPR(17)[ep], r17; \ - sld.w PTO+PT_GPR(18)[ep], r18; \ - sld.w PTO+PT_GPR(19)[ep], r19 - -/* Save `call clobbered' registers to the state-save-frame pointed to by EP. */ -#define SAVE_CALL_CLOBBERED_REGS \ - SAVE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \ - SAVE_ARG_REGS; \ - SAVE_RVAL_REGS; \ - SAVE_CALL_CLOBBERED_REGS_AFTER_RVAL -/* Restore `call clobbered' registers from the state-save-frame pointed to - by EP. */ -#define RESTORE_CALL_CLOBBERED_REGS \ - RESTORE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \ - RESTORE_ARG_REGS; \ - RESTORE_RVAL_REGS; \ - RESTORE_CALL_CLOBBERED_REGS_AFTER_RVAL - -/* Save `call clobbered' registers except for the return-value registers - to the state-save-frame pointed to by EP. */ -#define SAVE_CALL_CLOBBERED_REGS_NO_RVAL \ - SAVE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \ - SAVE_ARG_REGS; \ - SAVE_CALL_CLOBBERED_REGS_AFTER_RVAL -/* Restore `call clobbered' registers except for the return-value registers - from the state-save-frame pointed to by EP. */ -#define RESTORE_CALL_CLOBBERED_REGS_NO_RVAL \ - RESTORE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \ - RESTORE_ARG_REGS; \ - RESTORE_CALL_CLOBBERED_REGS_AFTER_RVAL - -/* Save `call saved' registers to the state-save-frame pointed to by EP. */ -#define SAVE_CALL_SAVED_REGS \ - sst.w r2, PTO+PT_GPR(2)[ep]; \ - sst.w r20, PTO+PT_GPR(20)[ep]; \ - sst.w r21, PTO+PT_GPR(21)[ep]; \ - sst.w r22, PTO+PT_GPR(22)[ep]; \ - sst.w r23, PTO+PT_GPR(23)[ep]; \ - sst.w r24, PTO+PT_GPR(24)[ep]; \ - sst.w r25, PTO+PT_GPR(25)[ep]; \ - sst.w r26, PTO+PT_GPR(26)[ep]; \ - sst.w r27, PTO+PT_GPR(27)[ep]; \ - sst.w r28, PTO+PT_GPR(28)[ep]; \ - sst.w r29, PTO+PT_GPR(29)[ep] -/* Restore `call saved' registers from the state-save-frame pointed to by EP. */ -#define RESTORE_CALL_SAVED_REGS \ - sld.w PTO+PT_GPR(2)[ep], r2; \ - sld.w PTO+PT_GPR(20)[ep], r20; \ - sld.w PTO+PT_GPR(21)[ep], r21; \ - sld.w PTO+PT_GPR(22)[ep], r22; \ - sld.w PTO+PT_GPR(23)[ep], r23; \ - sld.w PTO+PT_GPR(24)[ep], r24; \ - sld.w PTO+PT_GPR(25)[ep], r25; \ - sld.w PTO+PT_GPR(26)[ep], r26; \ - sld.w PTO+PT_GPR(27)[ep], r27; \ - sld.w PTO+PT_GPR(28)[ep], r28; \ - sld.w PTO+PT_GPR(29)[ep], r29 - - -/* Save the PC stored in the special register SAVEREG to the state-save-frame - pointed to by EP. r19 is clobbered. */ -#define SAVE_PC(savereg) \ - stsr SR_ ## savereg, r19; \ - sst.w r19, PTO+PT_PC[ep] -/* Restore the PC from the state-save-frame pointed to by EP, to the special - register SAVEREG. LP is clobbered (it is used as a scratch register - because the POP_STATE macro restores it, and this macro is usually used - inside POP_STATE). */ -#define RESTORE_PC(savereg) \ - sld.w PTO+PT_PC[ep], lp; \ - ldsr lp, SR_ ## savereg -/* Save the PSW register stored in the special register SAVREG to the - state-save-frame pointed to by EP. r19 is clobbered. */ -#define SAVE_PSW(savereg) \ - stsr SR_ ## savereg, r19; \ - sst.w r19, PTO+PT_PSW[ep] -/* Restore the PSW register from the state-save-frame pointed to by EP, to - the special register SAVEREG. LP is clobbered (it is used as a scratch - register because the POP_STATE macro restores it, and this macro is - usually used inside POP_STATE). */ -#define RESTORE_PSW(savereg) \ - sld.w PTO+PT_PSW[ep], lp; \ - ldsr lp, SR_ ## savereg - -/* Save CTPC/CTPSW/CTBP registers to the state-save-frame pointed to by REG. - r19 is clobbered. */ -#define SAVE_CT_REGS \ - stsr SR_CTPC, r19; \ - sst.w r19, PTO+PT_CTPC[ep]; \ - stsr SR_CTPSW, r19; \ - sst.w r19, PTO+PT_CTPSW[ep]; \ - stsr SR_CTBP, r19; \ - sst.w r19, PTO+PT_CTBP[ep] -/* Restore CTPC/CTPSW/CTBP registers from the state-save-frame pointed to by EP. - LP is clobbered (it is used as a scratch register because the POP_STATE - macro restores it, and this macro is usually used inside POP_STATE). */ -#define RESTORE_CT_REGS \ - sld.w PTO+PT_CTPC[ep], lp; \ - ldsr lp, SR_CTPC; \ - sld.w PTO+PT_CTPSW[ep], lp; \ - ldsr lp, SR_CTPSW; \ - sld.w PTO+PT_CTBP[ep], lp; \ - ldsr lp, SR_CTBP - - -/* Push register state, except for the stack pointer, on the stack in the - form of a state-save-frame (plus some extra padding), in preparation for - a system call. This macro makes sure that the EP, GP, and LP - registers are saved, and TYPE identifies the set of extra registers to - be saved as well. Also copies (the new value of) SP to EP. */ -#define PUSH_STATE(type) \ - addi -STATE_SAVE_SIZE, sp, sp; /* Make room on the stack. */ \ - st.w ep, PTO+PT_GPR(GPR_EP)[sp]; \ - mov sp, ep; \ - sst.w gp, PTO+PT_GPR(GPR_GP)[ep]; \ - sst.w lp, PTO+PT_GPR(GPR_LP)[ep]; \ - type ## _STATE_SAVER -/* Pop a register state pushed by PUSH_STATE, except for the stack pointer, - from the stack. */ -#define POP_STATE(type) \ - mov sp, ep; \ - type ## _STATE_RESTORER; \ - sld.w PTO+PT_GPR(GPR_GP)[ep], gp; \ - sld.w PTO+PT_GPR(GPR_LP)[ep], lp; \ - sld.w PTO+PT_GPR(GPR_EP)[ep], ep; \ - addi STATE_SAVE_SIZE, sp, sp /* Clean up our stack space. */ - - -/* Switch to the kernel stack if necessary, and push register state on the - stack in the form of a state-save-frame. Also load the current task - pointer if switching from user mode. The stack-pointer (r3) should have - already been saved to the memory location SP_SAVE_LOC (the reason for - this is that the interrupt vectors may be beyond a 22-bit signed offset - jump from the actual interrupt handler, and this allows them to save the - stack-pointer and use that register to do an indirect jump). This macro - makes sure that `special' registers, system registers, and the stack - pointer are saved; TYPE identifies the set of extra registers to be - saved as well. SYSCALL_NUM is the register in which the system-call - number this state is for is stored (r0 if this isn't a system call). - Interrupts should already be disabled when calling this. */ -#define SAVE_STATE(type, syscall_num, sp_save_loc) \ - tst1 0, KM; /* See if already in kernel mode. */ \ - bz 1f; \ - ld.w sp_save_loc, sp; /* ... yes, use saved SP. */ \ - br 2f; \ -1: ld.w KSP, sp; /* ... no, switch to kernel stack. */ \ -2: PUSH_STATE(type); \ - ld.b KM, r19; /* Remember old kernel-mode. */ \ - sst.w r19, PTO+PT_KERNEL_MODE[ep]; \ - ld.w sp_save_loc, r19; /* Remember old SP. */ \ - sst.w r19, PTO+PT_GPR(GPR_SP)[ep]; \ - mov 1, r19; /* Now definitely in kernel-mode. */ \ - st.b r19, KM; \ - GET_CURRENT_TASK(CURRENT_TASK); /* Fetch the current task pointer. */ \ - /* Save away the syscall number. */ \ - sst.w syscall_num, PTO+PT_CUR_SYSCALL[ep] - - -/* Save register state not normally saved by PUSH_STATE for TYPE, to the - state-save-frame on the stack; also copies SP to EP. r19 may be trashed. */ -#define SAVE_EXTRA_STATE(type) \ - mov sp, ep; \ - type ## _EXTRA_STATE_SAVER -/* Restore register state not normally restored by POP_STATE for TYPE, - from the state-save-frame on the stack; also copies SP to EP. - r19 may be trashed. */ -#define RESTORE_EXTRA_STATE(type) \ - mov sp, ep; \ - type ## _EXTRA_STATE_RESTORER - -/* Save any call-clobbered registers not normally saved by PUSH_STATE for - TYPE, to the state-save-frame on the stack. - EP may be trashed, but is not guaranteed to contain a copy of SP - (unlike after most SAVE_... macros). r19 may be trashed. */ -#define SAVE_EXTRA_STATE_FOR_SCHEDULE(type) \ - type ## _SCHEDULE_EXTRA_STATE_SAVER -/* Restore any call-clobbered registers not normally restored by - POP_STATE for TYPE, to the state-save-frame on the stack. - EP may be trashed, but is not guaranteed to contain a copy of SP - (unlike after most RESTORE_... macros). r19 may be trashed. */ -#define RESTORE_EXTRA_STATE_FOR_SCHEDULE(type) \ - type ## _SCHEDULE_EXTRA_STATE_RESTORER - - -/* These are extra_state_saver/restorer values for a user trap. Note - that we save the argument registers so that restarted syscalls will - function properly (otherwise it wouldn't be necessary), and we must - _not_ restore the return-value registers (so that traps can return a - value!), but call-clobbered registers are not saved at all, as the - caller of the syscall function should have saved them. */ - -#define TRAP_RET reti -/* Traps don't save call-clobbered registers (but do still save arg regs). - We preserve PSw to keep long-term state, namely interrupt status (for traps - from kernel-mode), and the single-step flag (for user traps). */ -#define TRAP_STATE_SAVER \ - SAVE_ARG_REGS; \ - SAVE_PC(EIPC); \ - SAVE_PSW(EIPSW) -/* When traps return, they just leave call-clobbered registers (except for arg - regs) with whatever value they have from the kernel. Traps don't preserve - the PSW, but we zero EIPSW to ensure it doesn't contain anything dangerous - (in particular, the single-step flag). */ -#define TRAP_STATE_RESTORER \ - RESTORE_ARG_REGS; \ - RESTORE_PC(EIPC); \ - RESTORE_PSW(EIPSW) -/* Save registers not normally saved by traps. We need to save r12, even - though it's nominally call-clobbered, because it's used when restarting - a system call (the signal-handling path uses SAVE_EXTRA_STATE, and - expects r12 to be restored when the trap returns). */ -#define TRAP_EXTRA_STATE_SAVER \ - SAVE_RVAL_REGS; \ - sst.w r12, PTO+PT_GPR(12)[ep]; \ - SAVE_CALL_SAVED_REGS; \ - SAVE_CT_REGS -#define TRAP_EXTRA_STATE_RESTORER \ - RESTORE_RVAL_REGS; \ - sld.w PTO+PT_GPR(12)[ep], r12; \ - RESTORE_CALL_SAVED_REGS; \ - RESTORE_CT_REGS -/* Save registers prior to calling scheduler (just before trap returns). - We have to save the return-value registers to preserve the trap's return - value. Note that ..._SCHEDULE_EXTRA_STATE_SAVER, unlike most ..._SAVER - macros, is required to setup EP itself if EP is needed (this is because - in many cases, the macro is empty). */ -#define TRAP_SCHEDULE_EXTRA_STATE_SAVER \ - mov sp, ep; \ - SAVE_RVAL_REGS -/* Note that ..._SCHEDULE_EXTRA_STATE_RESTORER, unlike most ..._RESTORER - macros, is required to setup EP itself if EP is needed (this is because - in many cases, the macro is empty). */ -#define TRAP_SCHEDULE_EXTRA_STATE_RESTORER \ - mov sp, ep; \ - RESTORE_RVAL_REGS - -/* Register saving/restoring for maskable interrupts. */ -#define IRQ_RET reti -#define IRQ_STATE_SAVER \ - SAVE_CALL_CLOBBERED_REGS; \ - SAVE_PC(EIPC); \ - SAVE_PSW(EIPSW) -#define IRQ_STATE_RESTORER \ - RESTORE_CALL_CLOBBERED_REGS; \ - RESTORE_PC(EIPC); \ - RESTORE_PSW(EIPSW) -#define IRQ_EXTRA_STATE_SAVER \ - SAVE_CALL_SAVED_REGS; \ - SAVE_CT_REGS -#define IRQ_EXTRA_STATE_RESTORER \ - RESTORE_CALL_SAVED_REGS; \ - RESTORE_CT_REGS -#define IRQ_SCHEDULE_EXTRA_STATE_SAVER /* nothing */ -#define IRQ_SCHEDULE_EXTRA_STATE_RESTORER /* nothing */ - -/* Register saving/restoring for non-maskable interrupts. */ -#define NMI_RET reti -#define NMI_STATE_SAVER \ - SAVE_CALL_CLOBBERED_REGS; \ - SAVE_PC(FEPC); \ - SAVE_PSW(FEPSW); -#define NMI_STATE_RESTORER \ - RESTORE_CALL_CLOBBERED_REGS; \ - RESTORE_PC(FEPC); \ - RESTORE_PSW(FEPSW); -#define NMI_EXTRA_STATE_SAVER \ - SAVE_CALL_SAVED_REGS; \ - SAVE_CT_REGS -#define NMI_EXTRA_STATE_RESTORER \ - RESTORE_CALL_SAVED_REGS; \ - RESTORE_CT_REGS -#define NMI_SCHEDULE_EXTRA_STATE_SAVER /* nothing */ -#define NMI_SCHEDULE_EXTRA_STATE_RESTORER /* nothing */ - -/* Register saving/restoring for debug traps. */ -#define DBTRAP_RET .long 0x014607E0 /* `dbret', but gas doesn't support it. */ -#define DBTRAP_STATE_SAVER \ - SAVE_CALL_CLOBBERED_REGS; \ - SAVE_PC(DBPC); \ - SAVE_PSW(DBPSW) -#define DBTRAP_STATE_RESTORER \ - RESTORE_CALL_CLOBBERED_REGS; \ - RESTORE_PC(DBPC); \ - RESTORE_PSW(DBPSW) -#define DBTRAP_EXTRA_STATE_SAVER \ - SAVE_CALL_SAVED_REGS; \ - SAVE_CT_REGS -#define DBTRAP_EXTRA_STATE_RESTORER \ - RESTORE_CALL_SAVED_REGS; \ - RESTORE_CT_REGS -#define DBTRAP_SCHEDULE_EXTRA_STATE_SAVER /* nothing */ -#define DBTRAP_SCHEDULE_EXTRA_STATE_RESTORER /* nothing */ - -/* Register saving/restoring for a context switch. We don't need to save - too many registers, because context-switching looks like a function call - (via the function `switch_thread'), so callers will save any - call-clobbered registers themselves. We do need to save the CT regs, as - they're normally not saved during kernel entry (the kernel doesn't use - them). We save PSW so that interrupt-status state will correctly follow - each thread (mostly NMI vs. normal-IRQ/trap), though for the most part - it doesn't matter since threads are always in almost exactly the same - processor state during a context switch. The stack pointer and return - value are handled by switch_thread itself. */ -#define SWITCH_STATE_SAVER \ - SAVE_CALL_SAVED_REGS; \ - SAVE_PSW(PSW); \ - SAVE_CT_REGS -#define SWITCH_STATE_RESTORER \ - RESTORE_CALL_SAVED_REGS; \ - RESTORE_PSW(PSW); \ - RESTORE_CT_REGS - - -/* Restore register state from the state-save-frame on the stack, switch back - to the user stack if necessary, and return from the trap/interrupt. - EXTRA_STATE_RESTORER is a sequence of assembly language statements to - restore anything not restored by this macro. Only registers not saved by - the C compiler are restored (that is, R3(sp), R4(gp), R31(lp), and - anything restored by EXTRA_STATE_RESTORER). */ -#define RETURN(type) \ - ld.b PTO+PT_KERNEL_MODE[sp], r19; \ - di; /* Disable interrupts */ \ - cmp r19, r0; /* See if returning to kernel mode, */\ - bne 2f; /* ... if so, skip resched &c. */ \ - \ - /* We're returning to user mode, so check for various conditions that \ - trigger rescheduling. */ \ - GET_CURRENT_THREAD(r18); \ - ld.w TI_FLAGS[r18], r19; \ - andi _TIF_NEED_RESCHED, r19, r0; \ - bnz 3f; /* Call the scheduler. */ \ -5: andi _TIF_SIGPENDING, r19, r18; \ - ld.w TASK_PTRACE[CURRENT_TASK], r19; /* ptrace flags */ \ - or r18, r19; /* see if either is non-zero */ \ - bnz 4f; /* if so, handle them */ \ - \ -/* Return to user state. */ \ -1: st.b r0, KM; /* Now officially in user state. */ \ - \ -/* Final return. The stack-pointer fiddling is not needed when returning \ - to kernel-mode, but they don't hurt, and this way we can share the \ - (sometimes rather lengthy) POP_STATE macro. */ \ -2: POP_STATE(type); \ - st.w sp, KSP; /* Save the kernel stack pointer. */ \ - ld.w PT_GPR(GPR_SP)-PT_SIZE[sp], sp; /* Restore stack pointer. */ \ - type ## _RET; /* Return from the trap/interrupt. */ \ - \ -/* Call the scheduler before returning from a syscall/trap. */ \ -3: SAVE_EXTRA_STATE_FOR_SCHEDULE(type); /* Prepare to call scheduler. */ \ - jarl call_scheduler, lp; /* Call scheduler */ \ - di; /* The scheduler enables interrupts */\ - RESTORE_EXTRA_STATE_FOR_SCHEDULE(type); \ - GET_CURRENT_THREAD(r18); \ - ld.w TI_FLAGS[r18], r19; \ - br 5b; /* Continue with return path. */ \ - \ -/* Handle a signal or ptraced process return. \ - r18 should be non-zero if there are pending signals. */ \ -4: /* Not all registers are saved by the normal trap/interrupt entry \ - points (for instance, call-saved registers (because the normal \ - C-compiler calling sequence in the kernel makes sure they're \ - preserved), and call-clobbered registers in the case of \ - traps), but signal handlers may want to examine or change the \ - complete register state. Here we save anything not saved by \ - the normal entry sequence, so that it may be safely restored \ - (in a possibly modified form) after do_signal returns. */ \ - SAVE_EXTRA_STATE(type); /* Save state not saved by entry. */ \ - jarl handle_signal_or_ptrace_return, lp; \ - RESTORE_EXTRA_STATE(type); /* Restore extra regs. */ \ - br 1b - - -/* Jump to the appropriate function for the system call number in r12 - (r12 is not preserved), or return an error if r12 is not valid. The - LP register should point to the location where the called function - should return. [note that MAKE_SYS_CALL uses label 1] */ -#define MAKE_SYS_CALL \ - /* Figure out which function to use for this system call. */ \ - shl 2, r12; \ - /* See if the system call number is valid. */ \ - addi lo(CSYM(sys_call_table) - sys_call_table_end), r12, r0; \ - bnh 1f; \ - mov hilo(CSYM(sys_call_table)), r19; \ - add r19, r12; \ - ld.w 0[r12], r12; \ - /* Make the system call. */ \ - jmp [r12]; \ - /* The syscall number is invalid, return an error. */ \ -1: addi -ENOSYS, r0, r10; \ - jmp [lp] - - - .text - -/* - * User trap. - * - * Trap 0 system calls are also handled here. - * - * The stack-pointer (r3) should have already been saved to the memory - * location ENTRY_SP (the reason for this is that the interrupt vectors may be - * beyond a 22-bit signed offset jump from the actual interrupt handler, and - * this allows them to save the stack-pointer and use that register to do an - * indirect jump). - * - * Syscall protocol: - * Syscall number in r12, args in r6-r9 - * Return value in r10 - */ -G_ENTRY(trap): - SAVE_STATE (TRAP, r12, ENTRY_SP) // Save registers. - stsr SR_ECR, r19 // Find out which trap it was. - ei // Enable interrupts. - mov hilo(ret_from_trap), lp // where the trap should return - - // The following two shifts (1) clear out extraneous NMI data in the - // upper 16-bits, (2) convert the 0x40 - 0x5f range of trap ECR - // numbers into the (0-31) << 2 range we want, (3) set the flags. - shl 27, r19 // chop off all high bits - shr 25, r19 // scale back down and then << 2 - bnz 2f // See if not trap 0. - - // Trap 0 is a `short' system call, skip general trap table. - MAKE_SYS_CALL // Jump to the syscall function. - -2: // For other traps, use a table lookup. - mov hilo(CSYM(trap_table)), r18 - add r19, r18 - ld.w 0[r18], r18 - jmp [r18] // Jump to the trap handler. -END(trap) - -/* This is just like ret_from_trap, but first restores extra registers - saved by some wrappers. */ -L_ENTRY(restore_extra_regs_and_ret_from_trap): - RESTORE_EXTRA_STATE(TRAP) - // fall through -END(restore_extra_regs_and_ret_from_trap) - -/* Entry point used to return from a syscall/trap. */ -L_ENTRY(ret_from_trap): - RETURN(TRAP) -END(ret_from_trap) - - -/* This the initial entry point for a new child thread, with an appropriate - stack in place that makes it look that the child is in the middle of an - syscall. This function is actually `returned to' from switch_thread - (copy_thread makes ret_from_fork the return address in each new thread's - saved context). */ -C_ENTRY(ret_from_fork): - mov r10, r6 // switch_thread returns the prev task. - jarl CSYM(schedule_tail), lp // ...which is schedule_tail's arg - mov r0, r10 // Child's fork call should return 0. - br ret_from_trap // Do normal trap return. -C_END(ret_from_fork) - - -/* - * Trap 1: `long' system calls - * `Long' syscall protocol: - * Syscall number in r12, args in r6-r9, r13-r14 - * Return value in r10 - */ -L_ENTRY(syscall_long): - // Push extra arguments on the stack. Note that by default, the trap - // handler reserves enough stack space for 6 arguments, so we don't - // have to make any additional room. - st.w r13, 16[sp] // arg 5 - st.w r14, 20[sp] // arg 6 - - // Make sure r13 and r14 are preserved, in case we have to restart a - // system call because of a signal (ep has already been set by caller). - st.w r13, PTO+PT_GPR(13)[sp] - st.w r14, PTO+PT_GPR(13)[sp] - mov hilo(ret_from_long_syscall), lp - - MAKE_SYS_CALL // Jump to the syscall function. -END(syscall_long) - -/* Entry point used to return from a long syscall. Only needed to restore - r13/r14 if the general trap mechanism doesnt' do so. */ -L_ENTRY(ret_from_long_syscall): - ld.w PTO+PT_GPR(13)[sp], r13 // Restore the extra registers - ld.w PTO+PT_GPR(13)[sp], r14 - br ret_from_trap // The rest is the same as other traps -END(ret_from_long_syscall) - - -/* These syscalls need access to the struct pt_regs on the stack, so we - implement them in assembly (they're basically all wrappers anyway). */ - -L_ENTRY(sys_fork_wrapper): -#ifdef CONFIG_MMU - addi SIGCHLD, r0, r6 // Arg 0: flags - ld.w PTO+PT_GPR(GPR_SP)[sp], r7 // Arg 1: child SP (use parent's) - movea PTO, sp, r8 // Arg 2: parent context - mov r0, r9 // Arg 3/4/5: 0 - st.w r0, 16[sp] - st.w r0, 20[sp] - mov hilo(CSYM(do_fork)), r18 // Where the real work gets done - br save_extra_state_tramp // Save state and go there -#else - // fork almost works, enough to trick you into looking elsewhere :-( - addi -EINVAL, r0, r10 - jmp [lp] -#endif -END(sys_fork_wrapper) - -L_ENTRY(sys_vfork_wrapper): - addi CLONE_VFORK | CLONE_VM | SIGCHLD, r0, r6 // Arg 0: flags - ld.w PTO+PT_GPR(GPR_SP)[sp], r7 // Arg 1: child SP (use parent's) - movea PTO, sp, r8 // Arg 2: parent context - mov r0, r9 // Arg 3/4/5: 0 - st.w r0, 16[sp] - st.w r0, 20[sp] - mov hilo(CSYM(do_fork)), r18 // Where the real work gets done - br save_extra_state_tramp // Save state and go there -END(sys_vfork_wrapper) - -L_ENTRY(sys_clone_wrapper): - ld.w PTO+PT_GPR(GPR_SP)[sp], r19// parent's stack pointer - cmp r7, r0 // See if child SP arg (arg 1) is 0. - cmov z, r19, r7, r7 // ... and use the parent's if so. - movea PTO, sp, r8 // Arg 2: parent context - mov r0, r9 // Arg 3/4/5: 0 - st.w r0, 16[sp] - st.w r0, 20[sp] - mov hilo(CSYM(do_fork)), r18 // Where the real work gets done - br save_extra_state_tramp // Save state and go there -END(sys_clone_wrapper) - - -L_ENTRY(sys_execve_wrapper): - movea PTO, sp, r9 // add user context as 4th arg - jr CSYM(sys_execve) // Do real work (tail-call). -END(sys_execve_wrapper) - - -L_ENTRY(sys_sigsuspend_wrapper): - movea PTO, sp, r7 // add user context as 2nd arg - mov hilo(CSYM(sys_sigsuspend)), r18 // syscall function - jarl save_extra_state_tramp, lp // Save state and do it - br restore_extra_regs_and_ret_from_trap -END(sys_sigsuspend_wrapper) -L_ENTRY(sys_rt_sigsuspend_wrapper): - movea PTO, sp, r8 // add user context as 3rd arg - mov hilo(CSYM(sys_rt_sigsuspend)), r18 // syscall function - jarl save_extra_state_tramp, lp // Save state and do it - br restore_extra_regs_and_ret_from_trap -END(sys_rt_sigsuspend_wrapper) - -L_ENTRY(sys_sigreturn_wrapper): - movea PTO, sp, r6 // add user context as 1st arg - mov hilo(CSYM(sys_sigreturn)), r18 // syscall function - jarl save_extra_state_tramp, lp // Save state and do it - br restore_extra_regs_and_ret_from_trap -END(sys_sigreturn_wrapper) -L_ENTRY(sys_rt_sigreturn_wrapper): - movea PTO, sp, r6 // add user context as 1st arg - mov hilo(CSYM(sys_rt_sigreturn)), r18// syscall function - jarl save_extra_state_tramp, lp // Save state and do it - br restore_extra_regs_and_ret_from_trap -END(sys_rt_sigreturn_wrapper) - - -/* Save any state not saved by SAVE_STATE(TRAP), and jump to r18. - It's main purpose is to share the rather lengthy code sequence that - SAVE_STATE expands into among the above wrapper functions. */ -L_ENTRY(save_extra_state_tramp): - SAVE_EXTRA_STATE(TRAP) // Save state not saved by entry. - jmp [r18] // Do the work the caller wants -END(save_extra_state_tramp) - - -/* - * Hardware maskable interrupts. - * - * The stack-pointer (r3) should have already been saved to the memory - * location ENTRY_SP (the reason for this is that the interrupt vectors may be - * beyond a 22-bit signed offset jump from the actual interrupt handler, and - * this allows them to save the stack-pointer and use that register to do an - * indirect jump). - */ -G_ENTRY(irq): - SAVE_STATE (IRQ, r0, ENTRY_SP) // Save registers. - - stsr SR_ECR, r6 // Find out which interrupt it was. - movea PTO, sp, r7 // User regs are arg2 - - // All v850 implementations I know about encode their interrupts as - // multiples of 0x10, starting at 0x80 (after NMIs and software - // interrupts). Convert this number into a simple IRQ index for the - // rest of the kernel. We also clear the upper 16 bits, which hold - // NMI info, and don't appear to be cleared when a NMI returns. - shl 16, r6 // clear upper 16 bits - shr 20, r6 // shift back, and remove lower nibble - add -8, r6 // remove bias for irqs - - // Call the high-level interrupt handling code. - jarl CSYM(handle_irq), lp - - RETURN(IRQ) -END(irq) - - -/* - * Debug trap / illegal-instruction exception - * - * The stack-pointer (r3) should have already been saved to the memory - * location ENTRY_SP (the reason for this is that the interrupt vectors may be - * beyond a 22-bit signed offset jump from the actual interrupt handler, and - * this allows them to save the stack-pointer and use that register to do an - * indirect jump). - */ -G_ENTRY(dbtrap): - SAVE_STATE (DBTRAP, r0, ENTRY_SP)// Save registers. - - /* First see if we came from kernel mode; if so, the dbtrap - instruction has a special meaning, to set the DIR (`debug - information register') register. This is because the DIR register - can _only_ be manipulated/read while in `debug mode,' and debug - mode is only active while we're inside the dbtrap handler. The - exact functionality is: { DIR = (DIR | r6) & ~r7; return DIR; }. */ - ld.b PTO+PT_KERNEL_MODE[sp], r19 - cmp r19, r0 - bz 1f - - stsr SR_DIR, r10 - or r6, r10 - not r7, r7 - and r7, r10 - ldsr r10, SR_DIR - stsr SR_DIR, r10 // Confirm the value we set - st.w r10, PTO+PT_GPR(10)[sp] // return it - br 3f - -1: ei // Enable interrupts. - - /* The default signal type we raise. */ - mov SIGTRAP, r6 - - /* See if it's a single-step trap. */ - stsr SR_DBPSW, r19 - andi 0x0800, r19, r19 - bnz 2f - - /* Look to see if the preceding instruction was is a dbtrap or not, - to decide which signal we should use. */ - stsr SR_DBPC, r19 // PC following trapping insn - ld.hu -2[r19], r19 - ori 0xf840, r0, r20 // DBTRAP insn - cmp r19, r20 // Was this trap caused by DBTRAP? - cmov ne, SIGILL, r6, r6 // Choose signal appropriately - - /* Raise the desired signal. */ -2: mov CURRENT_TASK, r7 // Arg 1: task - jarl CSYM(send_sig), lp // tail call - -3: RETURN(DBTRAP) -END(dbtrap) - - -/* - * Hardware non-maskable interrupts. - * - * The stack-pointer (r3) should have already been saved to the memory - * location ENTRY_SP (the reason for this is that the interrupt vectors may be - * beyond a 22-bit signed offset jump from the actual interrupt handler, and - * this allows them to save the stack-pointer and use that register to do an - * indirect jump). - */ -G_ENTRY(nmi): - SAVE_STATE (NMI, r0, NMI_ENTRY_SP); /* Save registers. */ - - stsr SR_ECR, r6; /* Find out which nmi it was. */ - shr 20, r6; /* Extract NMI code in bits 20-24. */ - movea PTO, sp, r7; /* User regs are arg2. */ - - /* Non-maskable interrupts always lie right after maskable interrupts. - Call the generic IRQ handler, with two arguments, the IRQ number, - and a pointer to the user registers, to handle the specifics. - (we subtract one because the first NMI has code 1). */ - addi FIRST_NMI - 1, r6, r6 - jarl CSYM(handle_irq), lp - - RETURN(NMI) -END(nmi) - - -/* - * Trap with no handler - */ -L_ENTRY(bad_trap_wrapper): - mov r19, r6 // Arg 0: trap number - movea PTO, sp, r7 // Arg 1: user regs - jr CSYM(bad_trap) // tail call handler -END(bad_trap_wrapper) - - -/* - * Invoke the scheduler, called from the trap/irq kernel exit path. - * - * This basically just calls `schedule', but also arranges for extra - * registers to be saved for ptrace'd processes, so ptrace can modify them. - */ -L_ENTRY(call_scheduler): - ld.w TASK_PTRACE[CURRENT_TASK], r19 // See if task is ptrace'd - cmp r19, r0 - bnz 1f // ... yes, do special stuff - jr CSYM(schedule) // ... no, just tail-call scheduler - - // Save extra regs for ptrace'd task. We want to save anything - // that would otherwise only be `implicitly' saved by the normal - // compiler calling-convention. -1: mov sp, ep // Setup EP for SAVE_CALL_SAVED_REGS - SAVE_CALL_SAVED_REGS // Save call-saved registers to stack - mov lp, r20 // Save LP in a callee-saved register - - jarl CSYM(schedule), lp // Call scheduler - - mov r20, lp - mov sp, ep // We can't rely on EP after return - RESTORE_CALL_SAVED_REGS // Restore (possibly modified) regs - jmp [lp] // Return to the return path -END(call_scheduler) - - -/* - * This is an out-of-line handler for two special cases during the kernel - * trap/irq exit sequence: - * - * (1) If r18 is non-zero then a signal needs to be handled, which is - * done, and then the caller returned to. - * - * (2) If r18 is non-zero then we're returning to a ptraced process, which - * has several special cases -- single-stepping and trap tracing, both - * of which require using the `dbret' instruction to exit the kernel - * instead of the normal `reti' (this is because the CPU not correctly - * single-step after a reti). In this case, of course, this handler - * never returns to the caller. - * - * In either case, all registers should have been saved to the current - * state-save-frame on the stack, except for callee-saved registers. - * - * [These two different cases are combined merely to avoid bloating the - * macro-inlined code, not because they really make much sense together!] - */ -L_ENTRY(handle_signal_or_ptrace_return): - cmp r18, r0 // See if handling a signal - bz 1f // ... nope, go do ptrace return - - // Handle a signal - mov lp, r20 // Save link-pointer - mov r10, r21 // Save return-values (for trap) - mov r11, r22 - - movea PTO, sp, r6 // Arg 1: struct pt_regs *regs - mov r0, r7 // Arg 2: sigset_t *oldset - jarl CSYM(do_signal), lp // Handle the signal - di // sig handling enables interrupts - - mov r20, lp // Restore link-pointer - mov r21, r10 // Restore return-values (for trap) - mov r22, r11 - ld.w TASK_PTRACE[CURRENT_TASK], r19 // check ptrace flags too - cmp r19, r0 - bnz 1f // ... some set, so look more -2: jmp [lp] // ... none set, so return normally - - // ptrace return -1: ld.w PTO+PT_PSW[sp], r19 // Look at user-processes's flags - andi 0x0800, r19, r19 // See if single-step flag is set - bz 2b // ... nope, return normally - - // Return as if from a dbtrap insn - st.b r0, KM // Now officially in user state. - POP_STATE(DBTRAP) // Restore regs - st.w sp, KSP // Save the kernel stack pointer. - ld.w PT_GPR(GPR_SP)-PT_SIZE[sp], sp // Restore user stack pointer. - DBTRAP_RET // Return from the trap/interrupt. -END(handle_signal_or_ptrace_return) - - -/* - * This is where we switch between two threads. The arguments are: - * r6 -- pointer to the struct thread for the `current' process - * r7 -- pointer to the struct thread for the `new' process. - * when this function returns, it will return to the new thread. - */ -C_ENTRY(switch_thread): - // Return the previous task (r10 is not clobbered by restore below) - mov CURRENT_TASK, r10 - // First, push the current processor state on the stack - PUSH_STATE(SWITCH) - // Now save the location of the kernel stack pointer for this thread; - // since we've pushed all other state on the stack, this is enough to - // restore it all later. - st.w sp, THREAD_KSP[r6] - // Now restore the stack pointer from the new process - ld.w THREAD_KSP[r7], sp - // ... and restore all state from that - POP_STATE(SWITCH) - // Update the current task pointer - GET_CURRENT_TASK(CURRENT_TASK) - // Now return into the new thread - jmp [lp] -C_END(switch_thread) - - - .data - - .align 4 -C_DATA(trap_table): - .long bad_trap_wrapper // trap 0, doesn't use trap table. - .long syscall_long // trap 1, `long' syscall. - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper - .long bad_trap_wrapper -C_END(trap_table) - - - .section .rodata - - .align 4 -C_DATA(sys_call_table): - .long CSYM(sys_restart_syscall) // 0 - .long CSYM(sys_exit) - .long sys_fork_wrapper - .long CSYM(sys_read) - .long CSYM(sys_write) - .long CSYM(sys_open) // 5 - .long CSYM(sys_close) - .long CSYM(sys_waitpid) - .long CSYM(sys_creat) - .long CSYM(sys_link) - .long CSYM(sys_unlink) // 10 - .long sys_execve_wrapper - .long CSYM(sys_chdir) - .long CSYM(sys_time) - .long CSYM(sys_mknod) - .long CSYM(sys_chmod) // 15 - .long CSYM(sys_chown) - .long CSYM(sys_ni_syscall) // was: break - .long CSYM(sys_ni_syscall) // was: oldstat (aka stat) - .long CSYM(sys_lseek) - .long CSYM(sys_getpid) // 20 - .long CSYM(sys_mount) - .long CSYM(sys_oldumount) - .long CSYM(sys_setuid) - .long CSYM(sys_getuid) - .long CSYM(sys_stime) // 25 - .long CSYM(sys_ptrace) - .long CSYM(sys_alarm) - .long CSYM(sys_ni_syscall) // was: oldfstat (aka fstat) - .long CSYM(sys_pause) - .long CSYM(sys_utime) // 30 - .long CSYM(sys_ni_syscall) // was: stty - .long CSYM(sys_ni_syscall) // was: gtty - .long CSYM(sys_access) - .long CSYM(sys_nice) - .long CSYM(sys_ni_syscall) // 35, was: ftime - .long CSYM(sys_sync) - .long CSYM(sys_kill) - .long CSYM(sys_rename) - .long CSYM(sys_mkdir) - .long CSYM(sys_rmdir) // 40 - .long CSYM(sys_dup) - .long CSYM(sys_pipe) - .long CSYM(sys_times) - .long CSYM(sys_ni_syscall) // was: prof - .long CSYM(sys_brk) // 45 - .long CSYM(sys_setgid) - .long CSYM(sys_getgid) - .long CSYM(sys_signal) - .long CSYM(sys_geteuid) - .long CSYM(sys_getegid) // 50 - .long CSYM(sys_acct) - .long CSYM(sys_umount) // recycled never used phys() - .long CSYM(sys_ni_syscall) // was: lock - .long CSYM(sys_ioctl) - .long CSYM(sys_fcntl) // 55 - .long CSYM(sys_ni_syscall) // was: mpx - .long CSYM(sys_setpgid) - .long CSYM(sys_ni_syscall) // was: ulimit - .long CSYM(sys_ni_syscall) - .long CSYM(sys_umask) // 60 - .long CSYM(sys_chroot) - .long CSYM(sys_ustat) - .long CSYM(sys_dup2) - .long CSYM(sys_getppid) - .long CSYM(sys_getpgrp) // 65 - .long CSYM(sys_setsid) - .long CSYM(sys_sigaction) - .long CSYM(sys_sgetmask) - .long CSYM(sys_ssetmask) - .long CSYM(sys_setreuid) // 70 - .long CSYM(sys_setregid) - .long sys_sigsuspend_wrapper - .long CSYM(sys_sigpending) - .long CSYM(sys_sethostname) - .long CSYM(sys_setrlimit) // 75 - .long CSYM(sys_getrlimit) - .long CSYM(sys_getrusage) - .long CSYM(sys_gettimeofday) - .long CSYM(sys_settimeofday) - .long CSYM(sys_getgroups) // 80 - .long CSYM(sys_setgroups) - .long CSYM(sys_select) - .long CSYM(sys_symlink) - .long CSYM(sys_ni_syscall) // was: oldlstat (aka lstat) - .long CSYM(sys_readlink) // 85 - .long CSYM(sys_uselib) - .long CSYM(sys_swapon) - .long CSYM(sys_reboot) - .long CSYM(old_readdir) - .long CSYM(sys_mmap) // 90 - .long CSYM(sys_munmap) - .long CSYM(sys_truncate) - .long CSYM(sys_ftruncate) - .long CSYM(sys_fchmod) - .long CSYM(sys_fchown) // 95 - .long CSYM(sys_getpriority) - .long CSYM(sys_setpriority) - .long CSYM(sys_ni_syscall) // was: profil - .long CSYM(sys_statfs) - .long CSYM(sys_fstatfs) // 100 - .long CSYM(sys_ni_syscall) // i386: ioperm - .long CSYM(sys_socketcall) - .long CSYM(sys_syslog) - .long CSYM(sys_setitimer) - .long CSYM(sys_getitimer) // 105 - .long CSYM(sys_newstat) - .long CSYM(sys_newlstat) - .long CSYM(sys_newfstat) - .long CSYM(sys_ni_syscall) // was: olduname (aka uname) - .long CSYM(sys_ni_syscall) // 110, i386: iopl - .long CSYM(sys_vhangup) - .long CSYM(sys_ni_syscall) // was: idle - .long CSYM(sys_ni_syscall) // i386: vm86old - .long CSYM(sys_wait4) - .long CSYM(sys_swapoff) // 115 - .long CSYM(sys_sysinfo) - .long CSYM(sys_ipc) - .long CSYM(sys_fsync) - .long sys_sigreturn_wrapper - .long sys_clone_wrapper // 120 - .long CSYM(sys_setdomainname) - .long CSYM(sys_newuname) - .long CSYM(sys_ni_syscall) // i386: modify_ldt, m68k: cacheflush - .long CSYM(sys_adjtimex) - .long CSYM(sys_ni_syscall) // 125 - sys_mprotect - .long CSYM(sys_sigprocmask) - .long CSYM(sys_ni_syscall) // sys_create_module - .long CSYM(sys_init_module) - .long CSYM(sys_delete_module) - .long CSYM(sys_ni_syscall) // 130 - sys_get_kernel_syms - .long CSYM(sys_quotactl) - .long CSYM(sys_getpgid) - .long CSYM(sys_fchdir) - .long CSYM(sys_bdflush) - .long CSYM(sys_sysfs) // 135 - .long CSYM(sys_personality) - .long CSYM(sys_ni_syscall) // for afs_syscall - .long CSYM(sys_setfsuid) - .long CSYM(sys_setfsgid) - .long CSYM(sys_llseek) // 140 - .long CSYM(sys_getdents) - .long CSYM(sys_select) // for backward compat; remove someday - .long CSYM(sys_flock) - .long CSYM(sys_ni_syscall) // sys_msync - .long CSYM(sys_readv) // 145 - .long CSYM(sys_writev) - .long CSYM(sys_getsid) - .long CSYM(sys_fdatasync) - .long CSYM(sys_sysctl) - .long CSYM(sys_ni_syscall) // 150 - sys_mlock - .long CSYM(sys_ni_syscall) // sys_munlock - .long CSYM(sys_ni_syscall) // sys_mlockall - .long CSYM(sys_ni_syscall) // sys_munlockall - .long CSYM(sys_sched_setparam) - .long CSYM(sys_sched_getparam) // 155 - .long CSYM(sys_sched_setscheduler) - .long CSYM(sys_sched_getscheduler) - .long CSYM(sys_sched_yield) - .long CSYM(sys_sched_get_priority_max) - .long CSYM(sys_sched_get_priority_min) // 160 - .long CSYM(sys_sched_rr_get_interval) - .long CSYM(sys_nanosleep) - .long CSYM(sys_ni_syscall) // sys_mremap - .long CSYM(sys_setresuid) - .long CSYM(sys_getresuid) // 165 - .long CSYM(sys_ni_syscall) // for vm86 - .long CSYM(sys_ni_syscall) // sys_query_module - .long CSYM(sys_poll) - .long CSYM(sys_nfsservctl) - .long CSYM(sys_setresgid) // 170 - .long CSYM(sys_getresgid) - .long CSYM(sys_prctl) - .long sys_rt_sigreturn_wrapper - .long CSYM(sys_rt_sigaction) - .long CSYM(sys_rt_sigprocmask) // 175 - .long CSYM(sys_rt_sigpending) - .long CSYM(sys_rt_sigtimedwait) - .long CSYM(sys_rt_sigqueueinfo) - .long sys_rt_sigsuspend_wrapper - .long CSYM(sys_pread64) // 180 - .long CSYM(sys_pwrite64) - .long CSYM(sys_lchown) - .long CSYM(sys_getcwd) - .long CSYM(sys_capget) - .long CSYM(sys_capset) // 185 - .long CSYM(sys_sigaltstack) - .long CSYM(sys_sendfile) - .long CSYM(sys_ni_syscall) // streams1 - .long CSYM(sys_ni_syscall) // streams2 - .long sys_vfork_wrapper // 190 - .long CSYM(sys_ni_syscall) - .long CSYM(sys_mmap2) - .long CSYM(sys_truncate64) - .long CSYM(sys_ftruncate64) - .long CSYM(sys_stat64) // 195 - .long CSYM(sys_lstat64) - .long CSYM(sys_fstat64) - .long CSYM(sys_fcntl64) - .long CSYM(sys_getdents64) - .long CSYM(sys_pivot_root) // 200 - .long CSYM(sys_gettid) - .long CSYM(sys_tkill) -sys_call_table_end: -C_END(sys_call_table) diff --git a/arch/v850/kernel/fpga85e2c.c b/arch/v850/kernel/fpga85e2c.c deleted file mode 100644 index ab9cf16a85c8..000000000000 --- a/arch/v850/kernel/fpga85e2c.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - * arch/v850/kernel/fpga85e2c.h -- Machine-dependent defs for - * FPGA implementation of V850E2/NA85E2C - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "mach.h" - -extern void memcons_setup (void); - - -#define REG_DUMP_ADDR 0x220000 - - -extern struct irqaction reg_snap_action; /* fwd decl */ - - -void __init mach_early_init (void) -{ - int i; - const u32 *src; - register u32 *dst asm ("ep"); - extern u32 _intv_end, _intv_load_start; - - /* Set bus sizes: CS0 32-bit, CS1 16-bit, CS7 8-bit, - everything else 32-bit. */ - V850E2_BSC = 0x2AA6; - for (i = 2; i <= 6; i++) - CSDEV(i) = 0; /* 32 bit */ - - /* Ensure that the simulator halts on a panic, instead of going - into an infinite loop inside the panic function. */ - panic_timeout = -1; - - /* Move the interrupt vectors into their real location. Note that - any relocations there are relative to the real location, so we - don't have to fix anything up. We use a loop instead of calling - memcpy to keep this a leaf function (to avoid a function - prologue being generated). */ - dst = 0x10; /* &_intv_start + 0x10. */ - src = &_intv_load_start; - do { - u32 t0 = src[0], t1 = src[1], t2 = src[2], t3 = src[3]; - u32 t4 = src[4], t5 = src[5], t6 = src[6], t7 = src[7]; - dst[0] = t0; dst[1] = t1; dst[2] = t2; dst[3] = t3; - dst[4] = t4; dst[5] = t5; dst[6] = t6; dst[7] = t7; - dst += 8; - src += 8; - } while (dst < &_intv_end); -} - -void __init mach_setup (char **cmdline) -{ - memcons_setup (); - - /* Setup up NMI0 to copy the registers to a known memory location. - The FGPA board has a button that produces NMI0 when pressed, so - this allows us to push the button, and then look at memory to see - what's in the registers (there's no other way to easily do so). - We have to use `setup_irq' instead of `request_irq' because it's - still too early to do memory allocation. */ - setup_irq (IRQ_NMI (0), ®_snap_action); -} - -void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len) -{ - *ram_start = ERAM_ADDR; - *ram_len = ERAM_SIZE; -} - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* Setup up the timer interrupt. The FPGA peripheral control - registers _only_ work with single-bit writes (set1/clr1)! */ - __clear_bit (RPU_GTMC_CE_BIT, &RPU_GTMC); - __clear_bit (RPU_GTMC_CLK_BIT, &RPU_GTMC); - __set_bit (RPU_GTMC_CE_BIT, &RPU_GTMC); - - /* We use the first RPU interrupt, which occurs every 8.192ms. */ - setup_irq (IRQ_RPU (0), timer_action); -} - - -void mach_gettimeofday (struct timespec *tv) -{ - tv->tv_sec = 0; - tv->tv_nsec = 0; -} - -void machine_halt (void) __attribute__ ((noreturn)); -void machine_halt (void) -{ - for (;;) { - DWC(0) = 0x7777; - DWC(1) = 0x7777; - ASC = 0xffff; - FLGREG(0) = 1; /* Halt immediately. */ - asm ("di; halt; nop; nop; nop; nop; nop"); - } -} - -void machine_restart (char *__unused) -{ - machine_halt (); -} - -void machine_power_off (void) -{ - machine_halt (); -} - - -/* Interrupts */ - -struct v850e_intc_irq_init irq_inits[] = { - { "IRQ", 0, NUM_MACH_IRQS, 1, 7 }, - { "RPU", IRQ_RPU(0), IRQ_RPU_NUM, 1, 6 }, - { 0 } -}; -#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1) - -struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; - -/* Initialize interrupts. */ -void __init mach_init_irqs (void) -{ - v850e_intc_init_irq_types (irq_inits, hw_itypes); -} - - -/* An interrupt handler that copies the registers to a known memory location, - for debugging purposes. */ - -static void make_reg_snap (int irq, void *dummy, struct pt_regs *regs) -{ - (*(unsigned *)REG_DUMP_ADDR)++; - (*(struct pt_regs *)(REG_DUMP_ADDR + sizeof (unsigned))) = *regs; -} - -static int reg_snap_dev_id; -static struct irqaction reg_snap_action = { - .handler = make_reg_snap, - .mask = CPU_MASK_NONE, - .name = "reg_snap", - .dev_id = ®_snap_dev_id, -}; diff --git a/arch/v850/kernel/fpga85e2c.ld b/arch/v850/kernel/fpga85e2c.ld deleted file mode 100644 index b5d4578ae411..000000000000 --- a/arch/v850/kernel/fpga85e2c.ld +++ /dev/null @@ -1,62 +0,0 @@ -/* Linker script for the FPGA implementation of the V850E2 NA85E2C cpu core - (CONFIG_V850E2_FPGA85E2C). */ - -MEMORY { - /* Reset vector. */ - RESET : ORIGIN = 0, LENGTH = 0x10 - /* Interrupt vectors. */ - INTV : ORIGIN = 0x10, LENGTH = 0x470 - /* The `window' in RAM were we're allowed to load stuff. */ - RAM_LOW : ORIGIN = 0x480, LENGTH = 0x0005FB80 - /* Some more ram above the window were we can put bss &c. */ - RAM_HIGH : ORIGIN = 0x00060000, LENGTH = 0x000A0000 - /* This is the area visible from the outside world (we can use - this only for uninitialized data). */ - VISIBLE : ORIGIN = 0x00200000, LENGTH = 0x00060000 -} - -SECTIONS { - .reset : { - __kram_start = . ; - __intv_start = . ; - *(.intv.reset) /* Reset vector */ - } > RESET - - .ram_low : { - __r0_ram = . ; /* Must be near address 0. */ - . = . + 32 ; - - TEXT_CONTENTS - DATA_CONTENTS - ROOT_FS_CONTENTS - RAMK_INIT_CONTENTS_NO_END - INITRAMFS_CONTENTS - } > RAM_LOW - - /* Where the interrupt vectors are initially loaded. */ - __intv_load_start = . ; - - .intv : { - *(.intv.common) /* Vectors common to all v850e proc. */ - *(.intv.mach) /* Machine-specific int. vectors. */ - __intv_end = . ; - } > INTV AT> RAM_LOW - - .ram_high : { - /* This is here so that when we free init memory the - load-time copy of the interrupt vectors and any empty - space at the end of the `RAM_LOW' area is freed too. */ - . = ALIGN (4096); - __init_end = . ; - - BSS_CONTENTS - __kram_end = . ; - BOOTMAP_CONTENTS - } > RAM_HIGH - - .visible : { - _memcons_output = . ; - . = . + 0x8000 ; - _memcons_output_end = . ; - } > VISIBLE -} diff --git a/arch/v850/kernel/gbus_int.c b/arch/v850/kernel/gbus_int.c deleted file mode 100644 index b2bcc251f65b..000000000000 --- a/arch/v850/kernel/gbus_int.c +++ /dev/null @@ -1,271 +0,0 @@ -/* - * arch/v850/kernel/gbus_int.c -- Midas labs GBUS interrupt support - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include - - -/* The number of shared GINT interrupts. */ -#define NUM_GINTS 4 - -/* For each GINT interrupt, how many GBUS interrupts are using it. */ -static unsigned gint_num_active_irqs[NUM_GINTS] = { 0 }; - -/* A table of GINTn interrupts we actually use. - Note that we don't use GINT0 because all the boards we support treat it - specially. */ -struct used_gint { - unsigned gint; - unsigned priority; -} used_gint[] = { - { 1, GBUS_INT_PRIORITY_HIGH }, - { 3, GBUS_INT_PRIORITY_LOW } -}; -#define NUM_USED_GINTS ARRAY_SIZE(used_gint) - -/* A table of which GINT is used by each GBUS interrupts (they are - assigned based on priority). */ -static unsigned char gbus_int_gint[IRQ_GBUS_INT_NUM]; - - -/* Interrupt enabling/disabling. */ - -/* Enable interrupt handling for interrupt IRQ. */ -void gbus_int_enable_irq (unsigned irq) -{ - unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ]; - GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint) - |= GBUS_INT_IRQ_MASK (irq); -} - -/* Disable interrupt handling for interrupt IRQ. Note that any - interrupts received while disabled will be delivered once the - interrupt is enabled again, unless they are explicitly cleared using - `gbus_int_clear_pending_irq'. */ -void gbus_int_disable_irq (unsigned irq) -{ - unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ]; - GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint) - &= ~GBUS_INT_IRQ_MASK (irq); -} - -/* Return true if interrupt handling for interrupt IRQ is enabled. */ -int gbus_int_irq_enabled (unsigned irq) -{ - unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ]; - return (GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint) - & GBUS_INT_IRQ_MASK(irq)); -} - -/* Disable all GBUS irqs. */ -void gbus_int_disable_irqs () -{ - unsigned w, n; - for (w = 0; w < GBUS_INT_NUM_WORDS; w++) - for (n = 0; n < IRQ_GINT_NUM; n++) - GBUS_INT_ENABLE (w, n) = 0; -} - -/* Clear any pending interrupts for IRQ. */ -void gbus_int_clear_pending_irq (unsigned irq) -{ - GBUS_INT_CLEAR (GBUS_INT_IRQ_WORD(irq)) = GBUS_INT_IRQ_MASK (irq); -} - -/* Return true if interrupt IRQ is pending (but disabled). */ -int gbus_int_irq_pending (unsigned irq) -{ - return (GBUS_INT_STATUS (GBUS_INT_IRQ_WORD(irq)) - & GBUS_INT_IRQ_MASK(irq)); -} - - -/* Delegating interrupts. */ - -/* Handle a shared GINT interrupt by passing to the appropriate GBUS - interrupt handler. */ -static irqreturn_t gbus_int_handle_irq (int irq, void *dev_id, - struct pt_regs *regs) -{ - unsigned w; - irqreturn_t rval = IRQ_NONE; - unsigned gint = irq - IRQ_GINT (0); - - for (w = 0; w < GBUS_INT_NUM_WORDS; w++) { - unsigned status = GBUS_INT_STATUS (w); - unsigned enable = GBUS_INT_ENABLE (w, gint); - - /* Only pay attention to enabled interrupts. */ - status &= enable; - if (status) { - irq = IRQ_GBUS_INT (w * GBUS_INT_BITS_PER_WORD); - do { - /* There's an active interrupt in word - W, find out which one, and call its - handler. */ - - while (! (status & 0x1)) { - irq++; - status >>= 1; - } - status &= ~0x1; - - /* Recursively call handle_irq to handle it. */ - handle_irq (irq, regs); - rval = IRQ_HANDLED; - } while (status); - } - } - - /* Toggle the `all enable' bit back and forth, which should cause - another edge transition if there are any other interrupts - still pending, and so result in another CPU interrupt. */ - GBUS_INT_ENABLE (0, gint) &= ~0x1; - GBUS_INT_ENABLE (0, gint) |= 0x1; - - return rval; -} - - -/* Initialize GBUS interrupt sources. */ - -static void irq_nop (unsigned irq) { } - -static unsigned gbus_int_startup_irq (unsigned irq) -{ - unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ]; - - if (gint_num_active_irqs[gint] == 0) { - /* First enable the CPU interrupt. */ - int rval = - request_irq (IRQ_GINT(gint), gbus_int_handle_irq, - IRQF_DISABLED, - "gbus_int_handler", - &gint_num_active_irqs[gint]); - if (rval != 0) - return rval; - } - - gint_num_active_irqs[gint]++; - - gbus_int_clear_pending_irq (irq); - gbus_int_enable_irq (irq); - - return 0; -} - -static void gbus_int_shutdown_irq (unsigned irq) -{ - unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ]; - - gbus_int_disable_irq (irq); - - if (--gint_num_active_irqs[gint] == 0) - /* Disable the CPU interrupt. */ - free_irq (IRQ_GINT(gint), &gint_num_active_irqs[gint]); -} - -/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array - INITS (which is terminated by an entry with the name field == 0). */ -void __init gbus_int_init_irq_types (struct gbus_int_irq_init *inits, - struct hw_interrupt_type *hw_irq_types) -{ - struct gbus_int_irq_init *init; - for (init = inits; init->name; init++) { - unsigned i; - struct hw_interrupt_type *hwit = hw_irq_types++; - - hwit->typename = init->name; - - hwit->startup = gbus_int_startup_irq; - hwit->shutdown = gbus_int_shutdown_irq; - hwit->enable = gbus_int_enable_irq; - hwit->disable = gbus_int_disable_irq; - hwit->ack = irq_nop; - hwit->end = irq_nop; - - /* Initialize kernel IRQ infrastructure for this interrupt. */ - init_irq_handlers(init->base, init->num, init->interval, hwit); - - /* Set the interrupt priorities. */ - for (i = 0; i < init->num; i++) { - unsigned j; - for (j = 0; j < NUM_USED_GINTS; j++) - if (used_gint[j].priority > init->priority) - break; - /* Wherever we stopped looking is one past the - GINT we want. */ - gbus_int_gint[init->base + i * init->interval - - GBUS_INT_BASE_IRQ] - = used_gint[j > 0 ? j - 1 : 0].gint; - } - } -} - - -/* Initialize IRQS. */ - -/* Chip interrupts (GINTn) shared among GBUS interrupts. */ -static struct hw_interrupt_type gint_hw_itypes[NUM_USED_GINTS]; - - -/* GBUS interrupts themselves. */ - -struct gbus_int_irq_init gbus_irq_inits[] __initdata = { - /* First set defaults. */ - { "GBUS_INT", IRQ_GBUS_INT(0), IRQ_GBUS_INT_NUM, 1, 6}, - { 0 } -}; -#define NUM_GBUS_IRQ_INITS (ARRAY_SIZE(gbus_irq_inits) - 1) - -static struct hw_interrupt_type gbus_hw_itypes[NUM_GBUS_IRQ_INITS]; - - -/* Initialize GBUS interrupts. */ -void __init gbus_int_init_irqs (void) -{ - unsigned i; - - /* First initialize the shared gint interrupts. */ - for (i = 0; i < NUM_USED_GINTS; i++) { - unsigned gint = used_gint[i].gint; - struct v850e_intc_irq_init gint_irq_init[2]; - - /* We initialize one GINT interrupt at a time. */ - gint_irq_init[0].name = "GINT"; - gint_irq_init[0].base = IRQ_GINT (gint); - gint_irq_init[0].num = 1; - gint_irq_init[0].interval = 1; - gint_irq_init[0].priority = used_gint[i].priority; - - gint_irq_init[1].name = 0; /* Terminate the vector. */ - - v850e_intc_init_irq_types (gint_irq_init, gint_hw_itypes); - } - - /* Then the GBUS interrupts. */ - gbus_int_disable_irqs (); - gbus_int_init_irq_types (gbus_irq_inits, gbus_hw_itypes); - /* Turn on the `all enable' bits, which are ANDed with - individual interrupt enable bits; we only want to bother with - the latter. They are the first bit in the first word of each - interrupt-enable area. */ - for (i = 0; i < NUM_USED_GINTS; i++) - GBUS_INT_ENABLE (0, used_gint[i].gint) = 0x1; -} diff --git a/arch/v850/kernel/head.S b/arch/v850/kernel/head.S deleted file mode 100644 index c490b937ef14..000000000000 --- a/arch/v850/kernel/head.S +++ /dev/null @@ -1,128 +0,0 @@ -/* - * arch/v850/kernel/head.S -- Lowest-level startup code - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include - - -/* Make a slightly more convenient alias for C_SYMBOL_NAME. */ -#define CSYM C_SYMBOL_NAME - - - .text - - // Define `mach_early_init' as a weak symbol - .global CSYM(mach_early_init) - .weak CSYM(mach_early_init) - -C_ENTRY(start): - // Make sure interrupts are turned off, just in case - di - -#ifdef CONFIG_RESET_GUARD - // See if we got here via an unexpected reset - ld.w RESET_GUARD, r19 // Check current value of reset guard - mov RESET_GUARD_ACTIVE, r20 - cmp r19, r20 - bne 1f // Guard was not active - - // If we get here, the reset guard was active. Load up some - // interesting values as arguments, and jump to the handler. - st.w r0, RESET_GUARD // Allow further resets to succeed - mov lp, r6 // Arg 0: return address - ld.b KM, r7 // Arg 1: kernel mode - mov sp, r9 // Arg 3: stack pointer - ld.w KSP, r19 // maybe switch to kernel stack - cmp r7, r0 // see if already in kernel mode - cmov z, r19, sp, sp // and switch to kernel stack if not - GET_CURRENT_TASK(r8) // Arg 2: task pointer - jr CSYM(unexpected_reset) - -1: st.w r20, RESET_GUARD // Turn on reset guard -#endif /* CONFIG_RESET_GUARD */ - - // Setup a temporary stack for doing pre-initialization function calls. - // - // We can't use the initial kernel stack, because (1) it may be - // located in memory we're not allowed to touch, and (2) since - // it's in the data segment, calling memcpy to initialize that - // area from ROM will overwrite memcpy's return address. - mov hilo(CSYM(_init_stack_end) - 4), sp - - // See if there's a platform-specific early-initialization routine - // defined; it's a weak symbol, so it will have an address of zero if - // there's not. - mov hilo(CSYM(mach_early_init)), r6 - cmp r6, r0 - bz 3f - - // There is one, so call it. If this function is written in C, it - // should be very careful -- the stack pointer is valid, but very - // little else is (e.g., bss is not zeroed yet, and initialized data - // hasn't been). - jarl 2f, lp // first figure out return address -2: add 3f - ., lp - jmp [r6] // do call -3: - -#ifdef CONFIG_ROM_KERNEL - // Copy the data area from ROM to RAM - mov hilo(CSYM(_rom_copy_dst_start)), r6 - mov hilo(CSYM(_rom_copy_src_start)), r7 - mov hilo(CSYM(_rom_copy_dst_end)), r8 - sub r6, r8 - jarl CSYM(memcpy), lp -#endif - - // Load the initial thread's stack, and current task pointer (in r16) - mov hilo(CSYM(init_thread_union)), r19 - movea THREAD_SIZE, r19, sp - ld.w TI_TASK[r19], CURRENT_TASK - -#ifdef CONFIG_TIME_BOOTUP - /* This stuff must come after mach_early_init, because interrupts may - not work until after its been called. */ - jarl CSYM(highres_timer_reset), lp - jarl CSYM(highres_timer_start), lp -#endif - - // Kernel stack pointer save location - st.w sp, KSP - - // Assert that we're in `kernel mode' - mov 1, r19 - st.w r19, KM - -#ifdef CONFIG_ZERO_BSS - // Zero bss area, since we can't rely upon any loader to do so - mov hilo(CSYM(_sbss)), r6 - mov r0, r7 - mov hilo(CSYM(_ebss)), r8 - sub r6, r8 - jarl CSYM(memset), lp -#endif - - // What happens if the main kernel function returns (it shouldn't) - mov hilo(CSYM(machine_halt)), lp - - // Start the linux kernel. We use an indirect jump to get extra - // range, because on some platforms this initial startup code - // (and the associated platform-specific code in mach_early_init) - // are located far away from the main kernel, e.g. so that they - // can initialize RAM first and copy the kernel or something. - mov hilo(CSYM(start_kernel)), r12 - jmp [r12] -C_END(start) diff --git a/arch/v850/kernel/highres_timer.c b/arch/v850/kernel/highres_timer.c deleted file mode 100644 index b16ad1eaf966..000000000000 --- a/arch/v850/kernel/highres_timer.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * arch/v850/kernel/highres_timer.c -- High resolution timing routines - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include - -#define HIGHRES_TIMER_USEC_SHIFT 12 - -/* Pre-calculated constant used for converting ticks to real time - units. We initialize it to prevent it being put into BSS. */ -static u32 highres_timer_usec_prescale = 1; - -void highres_timer_slow_tick_irq (void) __attribute__ ((noreturn)); -void highres_timer_slow_tick_irq (void) -{ - /* This is an interrupt handler, so it must be very careful to - not to trash any registers. At this point, the stack-pointer - (r3) has been saved in the chip ram location ENTRY_SP by the - interrupt vector, so we can use it as a scratch register; we - must also restore it before returning. */ - asm ("ld.w %0[r0], sp;" - "add 1, sp;" - "st.w sp, %0[r0];" - "ld.w %1[r0], sp;" /* restore pre-irq stack-pointer */ - "reti" - :: - "i" (HIGHRES_TIMER_SLOW_TICKS_ADDR), - "i" (ENTRY_SP_ADDR) - : "memory"); -} - -void highres_timer_reset (void) -{ - V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT) = 0; - HIGHRES_TIMER_SLOW_TICKS = 0; -} - -void highres_timer_start (void) -{ - u32 fast_tick_rate; - - /* Start hardware timer. */ - v850e_timer_d_configure (HIGHRES_TIMER_TIMER_D_UNIT, - HIGHRES_TIMER_SLOW_TICK_RATE); - - fast_tick_rate = - (V850E_TIMER_D_BASE_FREQ - >> V850E_TIMER_D_DIVLOG2 (HIGHRES_TIMER_TIMER_D_UNIT)); - - /* The obvious way of calculating microseconds from fast ticks - is to do: - - usec = fast_ticks * 10^6 / fast_tick_rate - - However, divisions are much slower than multiplications, and - the above calculation can overflow, so we do this instead: - - usec = fast_ticks * (10^6 * 2^12 / fast_tick_rate) / 2^12 - - since we can pre-calculate (10^6 * (2^12 / fast_tick_rate)) - and use a shift for dividing by 2^12, this avoids division, - and is almost as accurate (it differs by about 2 microseconds - at the extreme value of the fast-tick counter's ranger). */ - highres_timer_usec_prescale = ((1000000 << HIGHRES_TIMER_USEC_SHIFT) - / fast_tick_rate); - - /* Enable the interrupt (which is hardwired to this use), and - give it the highest priority. */ - V850E_INTC_IC (IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT)) = 0; -} - -void highres_timer_stop (void) -{ - /* Stop the timer. */ - V850E_TIMER_D_TMCD (HIGHRES_TIMER_TIMER_D_UNIT) = - V850E_TIMER_D_TMCD_CAE; - /* Disable its interrupt, just in case. */ - v850e_intc_disable_irq (IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT)); -} - -inline void highres_timer_read_ticks (u32 *slow_ticks, u32 *fast_ticks) -{ - int flags; - u32 fast_ticks_1, fast_ticks_2, _slow_ticks; - - local_irq_save (flags); - fast_ticks_1 = V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT); - _slow_ticks = HIGHRES_TIMER_SLOW_TICKS; - fast_ticks_2 = V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT); - local_irq_restore (flags); - - if (fast_ticks_2 < fast_ticks_1) - _slow_ticks++; - - *slow_ticks = _slow_ticks; - *fast_ticks = fast_ticks_2; -} - -inline void highres_timer_ticks_to_timeval (u32 slow_ticks, u32 fast_ticks, - struct timeval *tv) -{ - unsigned long sec, sec_rem, usec; - - usec = ((fast_ticks * highres_timer_usec_prescale) - >> HIGHRES_TIMER_USEC_SHIFT); - - sec = slow_ticks / HIGHRES_TIMER_SLOW_TICK_RATE; - sec_rem = slow_ticks % HIGHRES_TIMER_SLOW_TICK_RATE; - - usec += sec_rem * (1000000 / HIGHRES_TIMER_SLOW_TICK_RATE); - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -void highres_timer_read (struct timeval *tv) -{ - u32 fast_ticks, slow_ticks; - highres_timer_read_ticks (&slow_ticks, &fast_ticks); - highres_timer_ticks_to_timeval (slow_ticks, fast_ticks, tv); -} diff --git a/arch/v850/kernel/init_task.c b/arch/v850/kernel/init_task.c deleted file mode 100644 index 44b274dff33f..000000000000 --- a/arch/v850/kernel/init_task.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * arch/v850/kernel/init_task.c -- Initial task/thread structures - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -static struct fs_struct init_fs = INIT_FS; -static struct signal_struct init_signals = INIT_SIGNALS (init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -struct mm_struct init_mm = INIT_MM (init_mm); - -EXPORT_SYMBOL(init_mm); - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -struct task_struct init_task = INIT_TASK (init_task); - -EXPORT_SYMBOL(init_task); - -/* - * Initial thread structure. - * - * We need to make sure that this is 8192-byte aligned due to the - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry. - */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; diff --git a/arch/v850/kernel/intv.S b/arch/v850/kernel/intv.S deleted file mode 100644 index 671e4c6150dd..000000000000 --- a/arch/v850/kernel/intv.S +++ /dev/null @@ -1,87 +0,0 @@ -/* - * arch/v850/kernel/intv.S -- Interrupt vectors - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include - -#ifdef CONFIG_V850E_HIGHRES_TIMER -#include -#endif - -/* Jump to an interrupt/trap handler. These handlers (defined in entry.S) - expect the stack-pointer to be saved in ENTRY_SP, so we use sp to do an - indirect jump (which avoids problems when the handler is more than a signed - 22-bit offset away). */ -#define JUMP_TO_HANDLER(name, sp_save_loc) \ - st.w sp, sp_save_loc; \ - mov hilo(name), sp; \ - jmp [sp] - - - /* Reset vector. */ - .section .intv.reset, "ax" - .org 0x0 - mov hilo(C_SYMBOL_NAME(start)), r1; - jmp [r1] - - - /* Generic interrupt vectors. */ - .section .intv.common, "ax" - .balign 0x10 - JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x10 - NMI0 - .balign 0x10 - JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x20 - NMI1 - .balign 0x10 - JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x30 - NMI2 - - .balign 0x10 - JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x40 - TRAP0n - .balign 0x10 - JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x50 - TRAP1n - - .balign 0x10 - JUMP_TO_HANDLER (dbtrap, ENTRY_SP) // 0x60 - Illegal op / DBTRAP insn - - - /* Hardware interrupt vectors. */ - .section .intv.mach, "ax" - .org 0x0 - -#if defined (CONFIG_V850E_HIGHRES_TIMER) && defined (IRQ_INTCMD) - - /* Interrupts before the highres timer interrupt. */ - .rept IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT) - .balign 0x10 - JUMP_TO_HANDLER (irq, ENTRY_SP) - .endr - - /* The highres timer interrupt. */ - .balign 0x10 - JUMP_TO_HANDLER (C_SYMBOL_NAME (highres_timer_slow_tick_irq), ENTRY_SP) - - /* Interrupts after the highres timer interrupt. */ - .rept NUM_CPU_IRQS - IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT) - 1 - .balign 0x10 - JUMP_TO_HANDLER (irq, ENTRY_SP) - .endr - -#else /* No highres timer */ - - .rept NUM_CPU_IRQS - .balign 0x10 - JUMP_TO_HANDLER (irq, ENTRY_SP) - .endr - -#endif /* Highres timer */ diff --git a/arch/v850/kernel/irq.c b/arch/v850/kernel/irq.c deleted file mode 100644 index 858c45819aab..000000000000 --- a/arch/v850/kernel/irq.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * arch/v850/kernel/irq.c -- High-level interrupt handling - * - * Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation - * Copyright (C) 2001,02,03,04,05 Miles Bader - * Copyright (C) 1994-2000 Ralf Baechle - * Copyright (C) 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * This file was was derived from the mips version, arch/mips/kernel/irq.c - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -/* - * 'what should we do if we get a hw irq event on an illegal vector'. - * each architecture has to answer this themselves, it doesn't deserve - * a generic callback i think. - */ -void ack_bad_irq(unsigned int irq) -{ - printk("received IRQ %d with unknown interrupt type\n", irq); -} - -volatile unsigned long irq_err_count, spurious_count; - -/* - * Generic, controller-independent functions: - */ - -int show_interrupts(struct seq_file *p, void *v) -{ - int irq = *(loff_t *) v; - - if (irq == 0) { - int cpu; - seq_puts(p, " "); - for (cpu=0; cpu < 1 /*smp_num_cpus*/; cpu++) - seq_printf(p, "CPU%d ", cpu); - seq_putc(p, '\n'); - } - - if (irq < NR_IRQS) { - unsigned long flags; - struct irqaction *action; - - spin_lock_irqsave(&irq_desc[irq].lock, flags); - - action = irq_desc[irq].action; - if (action) { - int j; - int count = 0; - int num = -1; - const char *type_name = irq_desc[irq].chip->typename; - - for (j = 0; j < NR_IRQS; j++) - if (irq_desc[j].chip->typename == type_name){ - if (irq == j) - num = count; - count++; - } - - seq_printf(p, "%3d: ",irq); - seq_printf(p, "%10u ", kstat_irqs(irq)); - if (count > 1) { - int prec = (num >= 100 ? 3 : num >= 10 ? 2 : 1); - seq_printf(p, " %*s%d", 14 - prec, - type_name, num); - } else - seq_printf(p, " %14s", type_name); - - seq_printf(p, " %s", action->name); - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - seq_putc(p, '\n'); - } - - spin_unlock_irqrestore(&irq_desc[irq].lock, flags); - } else if (irq == NR_IRQS) - seq_printf(p, "ERR: %10lu\n", irq_err_count); - - return 0; -} - -/* Handle interrupt IRQ. REGS are the registers at the time of ther - interrupt. */ -unsigned int handle_irq (int irq, struct pt_regs *regs) -{ - irq_enter(); - __do_IRQ(irq, regs); - irq_exit(); - return 1; -} - -/* Initialize irq handling for IRQs. - BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL - to IRQ_TYPE. An IRQ_TYPE of 0 means to use a generic interrupt type. */ -void __init -init_irq_handlers (int base_irq, int num, int interval, - struct hw_interrupt_type *irq_type) -{ - while (num-- > 0) { - irq_desc[base_irq].status = IRQ_DISABLED; - irq_desc[base_irq].action = NULL; - irq_desc[base_irq].depth = 1; - irq_desc[base_irq].chip = irq_type; - base_irq += interval; - } -} diff --git a/arch/v850/kernel/ma.c b/arch/v850/kernel/ma.c deleted file mode 100644 index 143774de75e1..000000000000 --- a/arch/v850/kernel/ma.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * arch/v850/kernel/ma.c -- V850E/MA series of cpu chips - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "mach.h" - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* Start hardware timer. */ - v850e_timer_d_configure (0, HZ); - /* Install timer interrupt handler. */ - setup_irq (IRQ_INTCMD(0), timer_action); -} - -static struct v850e_intc_irq_init irq_inits[] = { - { "IRQ", 0, NUM_MACH_IRQS, 1, 7 }, - { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 }, - { "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 }, - { "CSI", IRQ_INTCSI(0), IRQ_INTCSI_NUM, 4, 4 }, - { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 4, 3 }, - { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 4, 4 }, - { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 4, 5 }, - { 0 } -}; -#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1) - -static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; - -/* Initialize MA chip interrupts. */ -void __init ma_init_irqs (void) -{ - v850e_intc_init_irq_types (irq_inits, hw_itypes); -} - -/* Called before configuring an on-chip UART. */ -void ma_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) -{ - /* We only know about the first two UART channels (though - specific chips may have more). */ - if (chan < 2) { - unsigned bits = 0x3 << (chan * 3); - /* Specify that the relevant pins on the chip should do - serial I/O, not direct I/O. */ - MA_PORT4_PMC |= bits; - /* Specify that we're using the UART, not the CSI device. */ - MA_PORT4_PFC |= bits; - } -} diff --git a/arch/v850/kernel/mach.c b/arch/v850/kernel/mach.c deleted file mode 100644 index b9db278d2b71..000000000000 --- a/arch/v850/kernel/mach.c +++ /dev/null @@ -1,17 +0,0 @@ -/* - * arch/v850/kernel/mach.c -- Defaults for some things defined by "mach.h" - * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include "mach.h" - -/* Called with each timer tick, if non-zero. */ -void (*mach_tick)(void) = 0; diff --git a/arch/v850/kernel/mach.h b/arch/v850/kernel/mach.h deleted file mode 100644 index 9e0e4816ec56..000000000000 --- a/arch/v850/kernel/mach.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * arch/v850/kernel/mach.h -- Machine-dependent functions used by v850 port - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_MACH_H__ -#define __V850_MACH_H__ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -void mach_setup (char **cmdline); -void mach_gettimeofday (struct timespec *tv); -void mach_sched_init (struct irqaction *timer_action); -void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len); -void mach_init_irqs (void); - -/* If defined, is called very early in the kernel initialization. The - stack pointer is valid, but very little has been initialized (e.g., - bss is not zeroed yet) when this is called, so care must taken. */ -void mach_early_init (void); - -/* If defined, called after the bootmem allocator has been initialized, - to allow the platform-dependent code to reserve any areas of RAM that - the kernel shouldn't touch. */ -void mach_reserve_bootmem (void) __attribute__ ((__weak__)); - -/* Called with each timer tick, if non-zero. */ -extern void (*mach_tick) (void); - -/* The following establishes aliases for various mach_ functions to the - name by which the rest of the kernel calls them. These statements - should only have an effect in the file that defines the actual functions. */ -#define MACH_ALIAS(to, from) \ - asm (".global " macrology_stringify (C_SYMBOL_NAME (to)) ";" \ - macrology_stringify (C_SYMBOL_NAME (to)) \ - " = " macrology_stringify (C_SYMBOL_NAME (from))) -/* e.g.: MACH_ALIAS (kernel_name, arch_spec_name); */ - -#endif /* __V850_MACH_H__ */ diff --git a/arch/v850/kernel/me2.c b/arch/v850/kernel/me2.c deleted file mode 100644 index 007115dc9ce0..000000000000 --- a/arch/v850/kernel/me2.c +++ /dev/null @@ -1,73 +0,0 @@ -/* - * arch/v850/kernel/me2.c -- V850E/ME2 chip-specific support - * - * Copyright (C) 2003 NEC Corporation - * Copyright (C) 2003 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "mach.h" - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* Start hardware timer. */ - v850e_timer_d_configure (0, HZ); - /* Install timer interrupt handler. */ - setup_irq (IRQ_INTCMD(0), timer_action); -} - -static struct v850e_intc_irq_init irq_inits[] = { - { "IRQ", 0, NUM_CPU_IRQS, 1, 7 }, - { "INTP", IRQ_INTP(0), IRQ_INTP_NUM, 1, 5 }, - { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 3 }, - { "UBTIRE", IRQ_INTUBTIRE(0), IRQ_INTUBTIRE_NUM, 5, 4 }, - { "UBTIR", IRQ_INTUBTIR(0), IRQ_INTUBTIR_NUM, 5, 4 }, - { "UBTIT", IRQ_INTUBTIT(0), IRQ_INTUBTIT_NUM, 5, 4 }, - { "UBTIF", IRQ_INTUBTIF(0), IRQ_INTUBTIF_NUM, 5, 4 }, - { "UBTITO", IRQ_INTUBTITO(0), IRQ_INTUBTITO_NUM, 5, 4 }, - { 0 } -}; -#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1) - -static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; - -/* Initialize V850E/ME2 chip interrupts. */ -void __init me2_init_irqs (void) -{ - v850e_intc_init_irq_types (irq_inits, hw_itypes); -} - -/* Called before configuring an on-chip UART. */ -void me2_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) -{ - if (chan == 0) { - /* Specify that the relevant pins on the chip should do - serial I/O, not direct I/O. */ - ME2_PORT1_PMC |= 0xC; - /* Specify that we're using the UART, not the CSI device. */ - ME2_PORT1_PFC |= 0xC; - } else if (chan == 1) { - /* Specify that the relevant pins on the chip should do - serial I/O, not direct I/O. */ - ME2_PORT2_PMC |= 0x6; - /* Specify that we're using the UART, not the CSI device. */ - ME2_PORT2_PFC |= 0x6; - } -} diff --git a/arch/v850/kernel/memcons.c b/arch/v850/kernel/memcons.c deleted file mode 100644 index 92f514fdcc79..000000000000 --- a/arch/v850/kernel/memcons.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * arch/v850/kernel/memcons.c -- Console I/O to a memory buffer - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include - -/* If this device is enabled, the linker map should define start and - end points for its buffer. */ -extern char memcons_output[], memcons_output_end; - -/* Current offset into the buffer. */ -static unsigned long memcons_offs = 0; - -/* Spinlock protecting memcons_offs. */ -static DEFINE_SPINLOCK(memcons_lock); - - -static size_t write (const char *buf, size_t len) -{ - unsigned long flags; - char *point; - - spin_lock_irqsave (memcons_lock, flags); - - point = memcons_output + memcons_offs; - if (point + len >= &memcons_output_end) { - len = &memcons_output_end - point; - memcons_offs = 0; - } else - memcons_offs += len; - - spin_unlock_irqrestore (memcons_lock, flags); - - memcpy (point, buf, len); - - return len; -} - - -/* Low-level console. */ - -static void memcons_write (struct console *co, const char *buf, unsigned len) -{ - while (len > 0) - len -= write (buf, len); -} - -static struct tty_driver *tty_driver; - -static struct tty_driver *memcons_device (struct console *co, int *index) -{ - *index = co->index; - return tty_driver; -} - -static struct console memcons = -{ - .name = "memcons", - .write = memcons_write, - .device = memcons_device, - .flags = CON_PRINTBUFFER, - .index = -1, -}; - -void memcons_setup (void) -{ - register_console (&memcons); - printk (KERN_INFO "Console: static memory buffer (memcons)\n"); -} - -/* Higher level TTY interface. */ - -int memcons_tty_open (struct tty_struct *tty, struct file *filp) -{ - return 0; -} - -int memcons_tty_write (struct tty_struct *tty, const unsigned char *buf, int len) -{ - return write (buf, len); -} - -int memcons_tty_write_room (struct tty_struct *tty) -{ - return &memcons_output_end - (memcons_output + memcons_offs); -} - -int memcons_tty_chars_in_buffer (struct tty_struct *tty) -{ - /* We have no buffer. */ - return 0; -} - -static const struct tty_operations ops = { - .open = memcons_tty_open, - .write = memcons_tty_write, - .write_room = memcons_tty_write_room, - .chars_in_buffer = memcons_tty_chars_in_buffer, -}; - -int __init memcons_tty_init (void) -{ - int err; - struct tty_driver *driver = alloc_tty_driver(1); - if (!driver) - return -ENOMEM; - - driver->name = "memcons"; - driver->major = TTY_MAJOR; - driver->minor_start = 64; - driver->type = TTY_DRIVER_TYPE_SYSCONS; - driver->init_termios = tty_std_termios; - tty_set_operations(driver, &ops); - err = tty_register_driver(driver); - if (err) { - put_tty_driver(driver); - return err; - } - tty_driver = driver; - return 0; -} -__initcall (memcons_tty_init); diff --git a/arch/v850/kernel/module.c b/arch/v850/kernel/module.c deleted file mode 100644 index 64aeb3e37c52..000000000000 --- a/arch/v850/kernel/module.c +++ /dev/null @@ -1,237 +0,0 @@ -/* - * arch/v850/kernel/module.c -- Architecture-specific module functions - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * Copyright (C) 2001,03 Rusty Russell - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - * - * Derived in part from arch/ppc/kernel/module.c - */ - -#include -#include -#include -#include - -#if 0 -#define DEBUGP printk -#else -#define DEBUGP(fmt , ...) -#endif - -void *module_alloc (unsigned long size) -{ - return size == 0 ? 0 : vmalloc (size); -} - -void module_free (struct module *mod, void *module_region) -{ - vfree (module_region); - /* FIXME: If module_region == mod->init_region, trim exception - table entries. */ -} - -int module_finalize (const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, - struct module *mod) -{ - return 0; -} - -/* Count how many different relocations (different symbol, different - addend) */ -static unsigned int count_relocs(const Elf32_Rela *rela, unsigned int num) -{ - unsigned int i, j, ret = 0; - - /* Sure, this is order(n^2), but it's usually short, and not - time critical */ - for (i = 0; i < num; i++) { - for (j = 0; j < i; j++) { - /* If this addend appeared before, it's - already been counted */ - if (ELF32_R_SYM(rela[i].r_info) - == ELF32_R_SYM(rela[j].r_info) - && rela[i].r_addend == rela[j].r_addend) - break; - } - if (j == i) ret++; - } - return ret; -} - -/* Get the potential trampolines size required of the init and - non-init sections */ -static unsigned long get_plt_size(const Elf32_Ehdr *hdr, - const Elf32_Shdr *sechdrs, - const char *secstrings, - int is_init) -{ - unsigned long ret = 0; - unsigned i; - - /* Everything marked ALLOC (this includes the exported - symbols) */ - for (i = 1; i < hdr->e_shnum; i++) { - /* If it's called *.init*, and we're not init, we're - not interested */ - if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0) - != is_init) - continue; - - if (sechdrs[i].sh_type == SHT_RELA) { - DEBUGP("Found relocations in section %u\n", i); - DEBUGP("Ptr: %p. Number: %u\n", - (void *)hdr + sechdrs[i].sh_offset, - sechdrs[i].sh_size / sizeof(Elf32_Rela)); - ret += count_relocs((void *)hdr - + sechdrs[i].sh_offset, - sechdrs[i].sh_size - / sizeof(Elf32_Rela)) - * sizeof(struct v850_plt_entry); - } - } - - return ret; -} - -int module_frob_arch_sections(Elf32_Ehdr *hdr, - Elf32_Shdr *sechdrs, - char *secstrings, - struct module *me) -{ - unsigned int i; - - /* Find .plt and .pltinit sections */ - for (i = 0; i < hdr->e_shnum; i++) { - if (strcmp(secstrings + sechdrs[i].sh_name, ".init.plt") == 0) - me->arch.init_plt_section = i; - else if (strcmp(secstrings + sechdrs[i].sh_name, ".plt") == 0) - me->arch.core_plt_section = i; - } - if (!me->arch.core_plt_section || !me->arch.init_plt_section) { - printk("Module doesn't contain .plt or .plt.init sections.\n"); - return -ENOEXEC; - } - - /* Override their sizes */ - sechdrs[me->arch.core_plt_section].sh_size - = get_plt_size(hdr, sechdrs, secstrings, 0); - sechdrs[me->arch.init_plt_section].sh_size - = get_plt_size(hdr, sechdrs, secstrings, 1); - return 0; -} - -int apply_relocate (Elf32_Shdr *sechdrs, const char *strtab, - unsigned int symindex, unsigned int relsec, - struct module *mod) -{ - printk ("Barf\n"); - return -ENOEXEC; -} - -/* Set up a trampoline in the PLT to bounce us to the distant function */ -static uint32_t do_plt_call (void *location, Elf32_Addr val, - Elf32_Shdr *sechdrs, struct module *mod) -{ - struct v850_plt_entry *entry; - /* Instructions used to do the indirect jump. */ - uint32_t tramp[2]; - - /* We have to trash a register, so we assume that any control - transfer more than 21-bits away must be a function call - (so we can use a call-clobbered register). */ - tramp[0] = 0x0621 + ((val & 0xffff) << 16); /* mov sym, r1 ... */ - tramp[1] = ((val >> 16) & 0xffff) + 0x610000; /* ...; jmp r1 */ - - /* Init, or core PLT? */ - if (location >= mod->module_core - && location < mod->module_core + mod->core_size) - entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr; - else - entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr; - - /* Find this entry, or if that fails, the next avail. entry */ - while (entry->tramp[0]) - if (entry->tramp[0] == tramp[0] && entry->tramp[1] == tramp[1]) - return (uint32_t)entry; - else - entry++; - - entry->tramp[0] = tramp[0]; - entry->tramp[1] = tramp[1]; - - return (uint32_t)entry; -} - -int apply_relocate_add (Elf32_Shdr *sechdrs, const char *strtab, - unsigned int symindex, unsigned int relsec, - struct module *mod) -{ - unsigned int i; - Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr; - - DEBUGP ("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - - for (i = 0; i < sechdrs[relsec].sh_size / sizeof (*rela); i++) { - /* This is where to make the change */ - uint32_t *loc - = ((void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rela[i].r_offset); - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - Elf32_Sym *sym - = ((Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM (rela[i].r_info)); - uint32_t val = sym->st_value + rela[i].r_addend; - - switch (ELF32_R_TYPE (rela[i].r_info)) { - case R_V850_32: - /* We write two shorts instead of a long because even - 32-bit insns only need half-word alignment, but - 32-bit data writes need to be long-word aligned. */ - val += ((uint16_t *)loc)[0]; - val += ((uint16_t *)loc)[1] << 16; - ((uint16_t *)loc)[0] = val & 0xffff; - ((uint16_t *)loc)[1] = (val >> 16) & 0xffff; - break; - - case R_V850_22_PCREL: - /* Maybe jump indirectly via a PLT table entry. */ - if ((int32_t)(val - (uint32_t)loc) > 0x1fffff - || (int32_t)(val - (uint32_t)loc) < -0x200000) - val = do_plt_call (loc, val, sechdrs, mod); - - val -= (uint32_t)loc; - - /* We write two shorts instead of a long because - even 32-bit insns only need half-word alignment, - but 32-bit data writes need to be long-word - aligned. */ - ((uint16_t *)loc)[0] = - (*(uint16_t *)loc & 0xffc0) /* opcode + reg */ - | ((val >> 16) & 0xffc03f); /* offs high */ - ((uint16_t *)loc)[1] = - (val & 0xffff); /* offs low */ - break; - - default: - printk (KERN_ERR "module %s: Unknown reloc: %u\n", - mod->name, ELF32_R_TYPE (rela[i].r_info)); - return -ENOEXEC; - } - } - - return 0; -} - -void -module_arch_cleanup(struct module *mod) -{ -} diff --git a/arch/v850/kernel/process.c b/arch/v850/kernel/process.c deleted file mode 100644 index e4a4b8e7d5a3..000000000000 --- a/arch/v850/kernel/process.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * arch/v850/kernel/process.c -- Arch-dependent process handling - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -void (*pm_power_off)(void) = NULL; -EXPORT_SYMBOL(pm_power_off); - -extern void ret_from_fork (void); - - -/* The idle loop. */ -static void default_idle (void) -{ - while (! need_resched ()) - asm ("halt; nop; nop; nop; nop; nop" ::: "cc"); -} - -void (*idle)(void) = default_idle; - -/* - * The idle thread. There's no useful work to be - * done, so just try to conserve power and have a - * low exit latency (ie sit in a loop waiting for - * somebody to say that they'd like to reschedule) - */ -void cpu_idle (void) -{ - /* endless idle loop with no priority at all */ - while (1) { - while (!need_resched()) - (*idle) (); - - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} - -/* - * This is the mechanism for creating a new kernel thread. - * - * NOTE! Only a kernel-only process (ie the swapper or direct descendants who - * haven't done an "execve()") should use this: it will work within a system - * call from a "real" process, but the process memory space will not be free'd - * until both the parent and the child have exited. - */ -int kernel_thread (int (*fn)(void *), void *arg, unsigned long flags) -{ - register mm_segment_t fs = get_fs (); - register unsigned long syscall asm (SYSCALL_NUM); - register unsigned long arg0 asm (SYSCALL_ARG0); - register unsigned long ret asm (SYSCALL_RET); - - set_fs (KERNEL_DS); - - /* Clone this thread. Note that we don't pass the clone syscall's - second argument -- it's ignored for calls from kernel mode (the - child's SP is always set to the top of the kernel stack). */ - arg0 = flags | CLONE_VM; - syscall = __NR_clone; - asm volatile ("trap " SYSCALL_SHORT_TRAP - : "=r" (ret), "=r" (syscall) - : "1" (syscall), "r" (arg0) - : SYSCALL_SHORT_CLOBBERS); - - if (ret == 0) { - /* In child thread, call FN and exit. */ - arg0 = (*fn) (arg); - syscall = __NR_exit; - asm volatile ("trap " SYSCALL_SHORT_TRAP - : "=r" (ret), "=r" (syscall) - : "1" (syscall), "r" (arg0) - : SYSCALL_SHORT_CLOBBERS); - } - - /* In parent. */ - set_fs (fs); - - return ret; -} - -void flush_thread (void) -{ - set_fs (USER_DS); -} - -int copy_thread (int nr, unsigned long clone_flags, - unsigned long stack_start, unsigned long stack_size, - struct task_struct *p, struct pt_regs *regs) -{ - /* Start pushing stuff from the top of the child's kernel stack. */ - unsigned long orig_ksp = task_tos(p); - unsigned long ksp = orig_ksp; - /* We push two `state save' stack fames (see entry.S) on the new - kernel stack: - 1) The innermost one is what switch_thread would have - pushed, and is used when we context switch to the child - thread for the first time. It's set up to return to - ret_from_fork in entry.S. - 2) The outermost one (nearest the top) is what a syscall - trap would have pushed, and is set up to return to the - same location as the parent thread, but with a return - value of 0. */ - struct pt_regs *child_switch_regs, *child_trap_regs; - - /* Trap frame. */ - ksp -= STATE_SAVE_SIZE; - child_trap_regs = (struct pt_regs *)(ksp + STATE_SAVE_PT_OFFSET); - /* Switch frame. */ - ksp -= STATE_SAVE_SIZE; - child_switch_regs = (struct pt_regs *)(ksp + STATE_SAVE_PT_OFFSET); - - /* First copy parent's register state to child. */ - *child_switch_regs = *regs; - *child_trap_regs = *regs; - - /* switch_thread returns to the restored value of the lp - register (r31), so we make that the place where we want to - jump when the child thread begins running. */ - child_switch_regs->gpr[GPR_LP] = (v850_reg_t)ret_from_fork; - - if (regs->kernel_mode) - /* Since we're returning to kernel-mode, make sure the child's - stored kernel stack pointer agrees with what the actual - stack pointer will be at that point (the trap return code - always restores the SP, even when returning to - kernel-mode). */ - child_trap_regs->gpr[GPR_SP] = orig_ksp; - else - /* Set the child's user-mode stack-pointer (the name - `stack_start' is a misnomer, it's just the initial SP - value). */ - child_trap_regs->gpr[GPR_SP] = stack_start; - - /* Thread state for the child (everything else is on the stack). */ - p->thread.ksp = ksp; - - return 0; -} - -/* - * sys_execve() executes a new program. - */ -int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs) -{ - char *filename = getname (name); - int error = PTR_ERR (filename); - - if (! IS_ERR (filename)) { - error = do_execve (filename, argv, envp, regs); - putname (filename); - } - - return error; -} - - -/* - * These bracket the sleeping functions.. - */ -#define first_sched ((unsigned long)__sched_text_start) -#define last_sched ((unsigned long)__sched_text_end) - -unsigned long get_wchan (struct task_struct *p) -{ -#if 0 /* Barf. Figure out the stack-layout later. XXX */ - unsigned long fp, pc; - int count = 0; - - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - - pc = thread_saved_pc (p); - - /* This quite disgusting function walks up the stack, following - saved return address, until it something that's out of bounds - (as defined by `first_sched' and `last_sched'). It then - returns the last PC that was in-bounds. */ - do { - if (fp < stack_page + sizeof (struct task_struct) || - fp >= 8184+stack_page) - return 0; - pc = ((unsigned long *)fp)[1]; - if (pc < first_sched || pc >= last_sched) - return pc; - fp = *(unsigned long *) fp; - } while (count++ < 16); -#endif - - return 0; -} diff --git a/arch/v850/kernel/procfs.c b/arch/v850/kernel/procfs.c deleted file mode 100644 index e433cde789b4..000000000000 --- a/arch/v850/kernel/procfs.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * arch/v850/kernel/procfs.c -- Introspection functions for /proc filesystem - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include "mach.h" - -static int cpuinfo_print (struct seq_file *m, void *v) -{ - extern unsigned long loops_per_jiffy; - - seq_printf (m, "CPU-Family: v850\nCPU-Arch: %s\n", CPU_ARCH); - -#ifdef CPU_MODEL_LONG - seq_printf (m, "CPU-Model: %s (%s)\n", CPU_MODEL, CPU_MODEL_LONG); -#else - seq_printf (m, "CPU-Model: %s\n", CPU_MODEL); -#endif - -#ifdef CPU_CLOCK_FREQ - seq_printf (m, "CPU-Clock: %ld (%ld MHz)\n", - (long)CPU_CLOCK_FREQ, - (long)CPU_CLOCK_FREQ / 1000000); -#endif - - seq_printf (m, "BogoMips: %lu.%02lu\n", - loops_per_jiffy/(500000/HZ), - (loops_per_jiffy/(5000/HZ)) % 100); - -#ifdef PLATFORM_LONG - seq_printf (m, "Platform: %s (%s)\n", PLATFORM, PLATFORM_LONG); -#elif defined (PLATFORM) - seq_printf (m, "Platform: %s\n", PLATFORM); -#endif - - return 0; -} - -static void *cpuinfo_start (struct seq_file *m, loff_t *pos) -{ - return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL; -} - -static void *cpuinfo_next (struct seq_file *m, void *v, loff_t *pos) -{ - ++*pos; - return cpuinfo_start (m, pos); -} - -static void cpuinfo_stop (struct seq_file *m, void *v) -{ -} - -const struct seq_operations cpuinfo_op = { - .start = cpuinfo_start, - .next = cpuinfo_next, - .stop = cpuinfo_stop, - .show = cpuinfo_print -}; diff --git a/arch/v850/kernel/ptrace.c b/arch/v850/kernel/ptrace.c deleted file mode 100644 index a458ac941b25..000000000000 --- a/arch/v850/kernel/ptrace.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * arch/v850/kernel/ptrace.c -- `ptrace' system call - * - * Copyright (C) 2002,03,04 NEC Electronics Corporation - * Copyright (C) 2002,03,04 Miles Bader - * - * Derived from arch/mips/kernel/ptrace.c: - * - * Copyright (C) 1992 Ross Biro - * Copyright (C) Linus Torvalds - * Copyright (C) 1994, 95, 96, 97, 98, 2000 Ralf Baechle - * Copyright (C) 1996 David S. Miller - * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999 MIPS Technologies, Inc. - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - */ - -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -/* Returns the address where the register at REG_OFFS in P is stashed away. */ -static v850_reg_t *reg_save_addr (unsigned reg_offs, struct task_struct *t) -{ - struct pt_regs *regs; - - /* Three basic cases: - - (1) A register normally saved before calling the scheduler, is - available in the kernel entry pt_regs structure at the top - of the kernel stack. The kernel trap/irq exit path takes - care to save/restore almost all registers for ptrace'd - processes. - - (2) A call-clobbered register, where the process P entered the - kernel via [syscall] trap, is not stored anywhere; that's - OK, because such registers are not expected to be preserved - when the trap returns anyway (so we don't actually bother to - test for this case). - - (3) A few registers not used at all by the kernel, and so - normally never saved except by context-switches, are in the - context switch state. */ - - if (reg_offs == PT_CTPC || reg_offs == PT_CTPSW || reg_offs == PT_CTBP) - /* Register saved during context switch. */ - regs = thread_saved_regs (t); - else - /* Register saved during kernel entry (or not available). */ - regs = task_pt_regs (t); - - return (v850_reg_t *)((char *)regs + reg_offs); -} - -/* Set the bits SET and clear the bits CLEAR in the v850e DIR - (`debug information register'). Returns the new value of DIR. */ -static inline v850_reg_t set_dir (v850_reg_t set, v850_reg_t clear) -{ - register v850_reg_t rval asm ("r10"); - register v850_reg_t arg0 asm ("r6") = set; - register v850_reg_t arg1 asm ("r7") = clear; - - /* The dbtrap handler has exactly this functionality when called - from kernel mode. 0xf840 is a `dbtrap' insn. */ - asm (".short 0xf840" : "=r" (rval) : "r" (arg0), "r" (arg1)); - - return rval; -} - -/* Makes sure hardware single-stepping is (globally) enabled. - Returns true if successful. */ -static inline int enable_single_stepping (void) -{ - static int enabled = 0; /* Remember whether we already did it. */ - if (! enabled) { - /* Turn on the SE (`single-step enable') bit, 0x100, in the - DIR (`debug information register'). This may fail if a - processor doesn't support it or something. We also try - to clear bit 0x40 (`INI'), which is necessary to use the - debug stuff on the v850e2; on the v850e, clearing 0x40 - shouldn't cause any problem. */ - v850_reg_t dir = set_dir (0x100, 0x40); - /* Make sure it really got set. */ - if (dir & 0x100) - enabled = 1; - } - return enabled; -} - -/* Try to set CHILD's single-step flag to VAL. Returns true if successful. */ -static int set_single_step (struct task_struct *t, int val) -{ - v850_reg_t *psw_addr = reg_save_addr(PT_PSW, t); - if (val) { - /* Make sure single-stepping is enabled. */ - if (! enable_single_stepping ()) - return 0; - /* Set T's single-step flag. */ - *psw_addr |= 0x800; - } else - *psw_addr &= ~0x800; - return 1; -} - -long arch_ptrace(struct task_struct *child, long request, long addr, long data) -{ - int rval; - - switch (request) { - unsigned long val; - - case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: - rval = generic_ptrace_peekdata(child, addr, data); - goto out; - - case PTRACE_POKETEXT: /* write the word at location addr. */ - case PTRACE_POKEDATA: - rval = generic_ptrace_pokedata(child, addr, data); - goto out; - - /* Read/write the word at location ADDR in the registers. */ - case PTRACE_PEEKUSR: - case PTRACE_POKEUSR: - rval = 0; - if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) { - /* Special requests that don't actually correspond - to offsets in struct pt_regs. */ - if (addr == PT_TEXT_ADDR) - val = child->mm->start_code; - else if (addr == PT_DATA_ADDR) - val = child->mm->start_data; - else if (addr == PT_TEXT_LEN) - val = child->mm->end_code - - child->mm->start_code; - else - rval = -EIO; - } else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) { - v850_reg_t *reg_addr = reg_save_addr(addr, child); - if (request == PTRACE_PEEKUSR) - val = *reg_addr; - else - *reg_addr = data; - } else - rval = -EIO; - - if (rval == 0 && request == PTRACE_PEEKUSR) - rval = put_user (val, (unsigned long *)data); - goto out; - - /* Continue and stop at next (return from) syscall */ - case PTRACE_SYSCALL: - /* Restart after a signal. */ - case PTRACE_CONT: - /* Execute a single instruction. */ - case PTRACE_SINGLESTEP: - rval = -EIO; - if (!valid_signal(data)) - break; - - /* Turn CHILD's single-step flag on or off. */ - if (! set_single_step (child, request == PTRACE_SINGLESTEP)) - break; - - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - - child->exit_code = data; - wake_up_process(child); - rval = 0; - break; - - /* - * make the child exit. Best I can do is send it a sigkill. - * perhaps it should be put in the status that it wants to - * exit. - */ - case PTRACE_KILL: - rval = 0; - if (child->exit_state == EXIT_ZOMBIE) /* already dead */ - break; - child->exit_code = SIGKILL; - wake_up_process(child); - break; - - case PTRACE_DETACH: /* detach a process that was attached. */ - set_single_step (child, 0); /* Clear single-step flag */ - rval = ptrace_detach(child, data); - break; - - default: - rval = -EIO; - goto out; - } - out: - return rval; -} - -asmlinkage void syscall_trace(void) -{ - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return; - if (!(current->ptrace & PT_PTRACED)) - return; - /* The 0x80 provides a way for the tracing parent to distinguish - between a syscall stop and SIGTRAP delivery */ - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) - ? 0x80 : 0)); - /* - * this isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (current->exit_code) { - send_sig(current->exit_code, current, 1); - current->exit_code = 0; - } -} - -void ptrace_disable (struct task_struct *child) -{ - /* nothing to do */ -} diff --git a/arch/v850/kernel/rte_cb.c b/arch/v850/kernel/rte_cb.c deleted file mode 100644 index 43018e1edebd..000000000000 --- a/arch/v850/kernel/rte_cb.c +++ /dev/null @@ -1,193 +0,0 @@ -/* - * include/asm-v850/rte_cb.c -- Midas lab RTE-CB series of evaluation boards - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include - -#include -#include - -#include "mach.h" - -static void led_tick (void); - -/* LED access routines. */ -extern unsigned read_leds (int pos, char *buf, int len); -extern unsigned write_leds (int pos, const char *buf, int len); - -#ifdef CONFIG_RTE_CB_MULTI -extern void multi_init (void); -#endif - - -void __init rte_cb_early_init (void) -{ - v850e_intc_disable_irqs (); - -#ifdef CONFIG_RTE_CB_MULTI - multi_init (); -#endif -} - -void __init mach_setup (char **cmdline) -{ -#ifdef CONFIG_RTE_MB_A_PCI - /* Probe for Mother-A, and print a message if we find it. */ - *(volatile unsigned long *)MB_A_SRAM_ADDR = 0xDEADBEEF; - if (*(volatile unsigned long *)MB_A_SRAM_ADDR == 0xDEADBEEF) { - *(volatile unsigned long *)MB_A_SRAM_ADDR = 0x12345678; - if (*(volatile unsigned long *)MB_A_SRAM_ADDR == 0x12345678) - printk (KERN_INFO - " NEC SolutionGear/Midas lab" - " RTE-MOTHER-A motherboard\n"); - } -#endif /* CONFIG_RTE_MB_A_PCI */ - - mach_tick = led_tick; -} - -void machine_restart (char *__unused) -{ -#ifdef CONFIG_RESET_GUARD - disable_reset_guard (); -#endif - asm ("jmp r0"); /* Jump to the reset vector. */ -} - -/* This says `HALt.' in LEDese. */ -static unsigned char halt_leds_msg[] = { 0x76, 0x77, 0x38, 0xF8 }; - -void machine_halt (void) -{ -#ifdef CONFIG_RESET_GUARD - disable_reset_guard (); -#endif - - /* Ignore all interrupts. */ - local_irq_disable (); - - /* Write a little message. */ - write_leds (0, halt_leds_msg, sizeof halt_leds_msg); - - /* Really halt. */ - for (;;) - asm ("halt; nop; nop; nop; nop; nop"); -} - -void machine_power_off (void) -{ - machine_halt (); -} - - -/* Animated LED display for timer tick. */ - -#define TICK_UPD_FREQ 6 -static int tick_frames[][10] = { - { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, -1 }, - { 0x63, 0x5c, -1 }, - { 0x5c, 0x00, -1 }, - { 0x63, 0x00, -1 }, - { -1 } -}; - -static void led_tick () -{ - static unsigned counter = 0; - - if (++counter == (HZ / TICK_UPD_FREQ)) { - /* Which frame we're currently displaying for each digit. */ - static unsigned frame_nums[LED_NUM_DIGITS] = { 0 }; - /* Display image. */ - static unsigned char image[LED_NUM_DIGITS] = { 0 }; - unsigned char prev_image[LED_NUM_DIGITS]; - int write_to_leds = 1; /* true if we should actually display */ - int digit; - - /* We check to see if the physical LEDs contains what we last - wrote to them; if not, we suppress display (this is so that - users can write to the LEDs, and not have their output - overwritten). As a special case, we start writing again if - all the LEDs are blank, or our display image is all zeros - (indicating that this is the initial update, when the actual - LEDs might contain random data). */ - read_leds (0, prev_image, LED_NUM_DIGITS); - for (digit = 0; digit < LED_NUM_DIGITS; digit++) - if (image[digit] != prev_image[digit] - && image[digit] && prev_image[digit]) - { - write_to_leds = 0; - break; - } - - /* Update display image. */ - for (digit = 0; - digit < LED_NUM_DIGITS && tick_frames[digit][0] >= 0; - digit++) - { - int frame = tick_frames[digit][frame_nums[digit]]; - if (frame < 0) { - image[digit] = tick_frames[digit][0]; - frame_nums[digit] = 1; - } else { - image[digit] = frame; - frame_nums[digit]++; - break; - } - } - - if (write_to_leds) - /* Write the display image to the physical LEDs. */ - write_leds (0, image, LED_NUM_DIGITS); - - counter = 0; - } -} - - -/* Mother-A interrupts. */ - -#ifdef CONFIG_RTE_GBUS_INT - -#define L GBUS_INT_PRIORITY_LOW -#define M GBUS_INT_PRIORITY_MEDIUM -#define H GBUS_INT_PRIORITY_HIGH - -static struct gbus_int_irq_init gbus_irq_inits[] = { -#ifdef CONFIG_RTE_MB_A_PCI - { "MB_A_LAN", IRQ_MB_A_LAN, 1, 1, L }, - { "MB_A_PCI1", IRQ_MB_A_PCI1(0), IRQ_MB_A_PCI1_NUM, 1, L }, - { "MB_A_PCI2", IRQ_MB_A_PCI2(0), IRQ_MB_A_PCI2_NUM, 1, L }, - { "MB_A_EXT", IRQ_MB_A_EXT(0), IRQ_MB_A_EXT_NUM, 1, L }, - { "MB_A_USB_OC",IRQ_MB_A_USB_OC(0), IRQ_MB_A_USB_OC_NUM, 1, L }, - { "MB_A_PCMCIA_OC",IRQ_MB_A_PCMCIA_OC, 1, 1, L }, -#endif - { 0 } -}; -#define NUM_GBUS_IRQ_INITS (ARRAY_SIZE(gbus_irq_inits) - 1) - -static struct hw_interrupt_type gbus_hw_itypes[NUM_GBUS_IRQ_INITS]; - -#endif /* CONFIG_RTE_GBUS_INT */ - - -void __init rte_cb_init_irqs (void) -{ -#ifdef CONFIG_RTE_GBUS_INT - gbus_int_init_irqs (); - gbus_int_init_irq_types (gbus_irq_inits, gbus_hw_itypes); -#endif /* CONFIG_RTE_GBUS_INT */ -} diff --git a/arch/v850/kernel/rte_cb_leds.c b/arch/v850/kernel/rte_cb_leds.c deleted file mode 100644 index aa47ab1dcd87..000000000000 --- a/arch/v850/kernel/rte_cb_leds.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * include/asm-v850/rte_cb_leds.c -- Midas lab RTE-CB board LED device support - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include - -#include - -#define LEDS_MINOR 169 /* Minor device number, using misc major. */ - -/* The actual LED hardware is write-only, so we hold the contents here too. */ -static unsigned char leds_image[LED_NUM_DIGITS] = { 0 }; - -/* Spinlock protecting the above leds. */ -static DEFINE_SPINLOCK(leds_lock); - -/* Common body of LED read/write functions, checks POS and LEN for - correctness, declares a variable using IMG_DECL, initialized pointing at - the POS position in the LED image buffer, and and iterates COPY_EXPR - until BUF is equal to the last buffer position; finally, sets LEN to be - the amount actually copied. IMG should be a variable declaration - (without an initializer or a terminating semicolon); POS, BUF, and LEN - should all be simple variables. */ -#define DO_LED_COPY(img_decl, pos, buf, len, copy_expr) \ -do { \ - if (pos > LED_NUM_DIGITS) \ - len = 0; \ - else { \ - if (pos + len > LED_NUM_DIGITS) \ - len = LED_NUM_DIGITS - pos; \ - \ - if (len > 0) { \ - unsigned long _flags; \ - const char *_end = buf + len; \ - img_decl = &leds_image[pos]; \ - \ - spin_lock_irqsave (leds_lock, _flags); \ - do \ - (copy_expr); \ - while (buf != _end); \ - spin_unlock_irqrestore (leds_lock, _flags); \ - } \ - } \ -} while (0) - -/* Read LEN bytes from LEDs at position POS, into BUF. - Returns actual amount read. */ -unsigned read_leds (unsigned pos, char *buf, unsigned len) -{ - DO_LED_COPY (const char *img, pos, buf, len, *buf++ = *img++); - return len; -} - -/* Write LEN bytes to LEDs at position POS, from BUF. - Returns actual amount written. */ -unsigned write_leds (unsigned pos, const char *buf, unsigned len) -{ - /* We write the actual LED values backwards, because - increasing memory addresses reflect LEDs right-to-left. */ - volatile char *led = &LED (LED_NUM_DIGITS - pos - 1); - /* We invert the value written to the hardware, because 1 = off, - and 0 = on. */ - DO_LED_COPY (char *img, pos, buf, len, - *led-- = 0xFF ^ (*img++ = *buf++)); - return len; -} - - -/* Device functions. */ - -static ssize_t leds_dev_read (struct file *file, char *buf, size_t len, - loff_t *pos) -{ - char temp_buf[LED_NUM_DIGITS]; - len = read_leds (*pos, temp_buf, len); - if (copy_to_user (buf, temp_buf, len)) - return -EFAULT; - *pos += len; - return len; -} - -static ssize_t leds_dev_write (struct file *file, const char *buf, size_t len, - loff_t *pos) -{ - char temp_buf[LED_NUM_DIGITS]; - if (copy_from_user (temp_buf, buf, min_t(size_t, len, LED_NUM_DIGITS))) - return -EFAULT; - len = write_leds (*pos, temp_buf, len); - *pos += len; - return len; -} - -static loff_t leds_dev_lseek (struct file *file, loff_t offs, int whence) -{ - if (whence == 1) - offs += file->f_pos; /* relative */ - else if (whence == 2) - offs += LED_NUM_DIGITS; /* end-relative */ - - if (offs < 0 || offs > LED_NUM_DIGITS) - return -EINVAL; - - file->f_pos = offs; - - return 0; -} - -static const struct file_operations leds_fops = { - .read = leds_dev_read, - .write = leds_dev_write, - .llseek = leds_dev_lseek -}; - -static struct miscdevice leds_miscdev = { - .name = "leds", - .minor = LEDS_MINOR, - .fops = &leds_fops -}; - -int __init leds_dev_init (void) -{ - return misc_register (&leds_miscdev); -} - -__initcall (leds_dev_init); diff --git a/arch/v850/kernel/rte_cb_multi.c b/arch/v850/kernel/rte_cb_multi.c deleted file mode 100644 index 963d55ab34cc..000000000000 --- a/arch/v850/kernel/rte_cb_multi.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * include/asm-v850/rte_multi.c -- Support for Multi debugger monitor ROM - * on Midas lab RTE-CB series of evaluation boards - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include - -#include - -#define IRQ_ADDR(irq) (0x80 + (irq) * 0x10) - -/* A table of which interrupt vectors to install, since blindly - installing all of them makes the debugger stop working. This is a - list of offsets in the interrupt vector area; each entry means to - copy that particular 16-byte vector. An entry less than zero ends - the table. */ -static long multi_intv_install_table[] = { - /* Trap vectors */ - 0x40, 0x50, - -#ifdef CONFIG_RTE_CB_MULTI_DBTRAP - /* Illegal insn / dbtrap. These are used by multi, so only handle - them if configured to do so. */ - 0x60, -#endif - - /* GINT1 - GINT3 (note, not GINT0!) */ - IRQ_ADDR (IRQ_GINT(1)), - IRQ_ADDR (IRQ_GINT(2)), - IRQ_ADDR (IRQ_GINT(3)), - - /* Timer D interrupts (up to 4 timers) */ - IRQ_ADDR (IRQ_INTCMD(0)), -#if IRQ_INTCMD_NUM > 1 - IRQ_ADDR (IRQ_INTCMD(1)), -#if IRQ_INTCMD_NUM > 2 - IRQ_ADDR (IRQ_INTCMD(2)), -#if IRQ_INTCMD_NUM > 3 - IRQ_ADDR (IRQ_INTCMD(3)), -#endif -#endif -#endif - - /* UART interrupts (up to 3 channels) */ - IRQ_ADDR (IRQ_INTSER (0)), /* err */ - IRQ_ADDR (IRQ_INTSR (0)), /* rx */ - IRQ_ADDR (IRQ_INTST (0)), /* tx */ -#if IRQ_INTSR_NUM > 1 - IRQ_ADDR (IRQ_INTSER (1)), /* err */ - IRQ_ADDR (IRQ_INTSR (1)), /* rx */ - IRQ_ADDR (IRQ_INTST (1)), /* tx */ -#if IRQ_INTSR_NUM > 2 - IRQ_ADDR (IRQ_INTSER (2)), /* err */ - IRQ_ADDR (IRQ_INTSR (2)), /* rx */ - IRQ_ADDR (IRQ_INTST (2)), /* tx */ -#endif -#endif - - -1 -}; - -/* Early initialization for kernel using Multi debugger ROM monitor. */ -void __init multi_init (void) -{ - /* We're using the Multi debugger monitor, so we have to install - the interrupt vectors. The monitor doesn't allow them to be - initially downloaded into their final destination because - it's in the monitor's scratch-RAM area. Unfortunately, Multi - also doesn't deal correctly with ELF sections where the LMA - and VMA differ -- it just ignores the LMA -- so we can't use - that feature to work around the problem. What we do instead - is just put the interrupt vectors into a normal section, and - do the necessary copying and relocation here. Since the - interrupt vector basically only contains `jr' instructions - and no-ops, it's not that hard. */ - extern unsigned long _intv_load_start, _intv_start; - register unsigned long *src = &_intv_load_start; - register unsigned long *dst = (unsigned long *)INTV_BASE; - register unsigned long jr_fixup = (char *)&_intv_start - (char *)dst; - register long *ii; - - /* Copy interrupt vectors as instructed by multi_intv_install_table. */ - for (ii = multi_intv_install_table; *ii >= 0; ii++) { - /* Copy 16-byte interrupt vector at offset *ii. */ - int boffs; - for (boffs = 0; boffs < 0x10; boffs += sizeof *src) { - /* Copy a single word, fixing up the jump offs - if it's a `jr' instruction. */ - int woffs = (*ii + boffs) / sizeof *src; - unsigned long word = src[woffs]; - - if ((word & 0xFC0) == 0x780) { - /* A `jr' insn, fix up its offset (and yes, the - weird half-word swapping is intentional). */ - unsigned short hi = word & 0xFFFF; - unsigned short lo = word >> 16; - unsigned long udisp22 - = lo + ((hi & 0x3F) << 16); - long disp22 = (long)(udisp22 << 10) >> 10; - - disp22 += jr_fixup; - - hi = ((disp22 >> 16) & 0x3F) | 0x780; - lo = disp22 & 0xFFFF; - - word = hi + (lo << 16); - } - - dst[woffs] = word; - } - } -} diff --git a/arch/v850/kernel/rte_ma1_cb-rom.ld b/arch/v850/kernel/rte_ma1_cb-rom.ld deleted file mode 100644 index 87b618f8253b..000000000000 --- a/arch/v850/kernel/rte_ma1_cb-rom.ld +++ /dev/null @@ -1,14 +0,0 @@ -/* Linker script for the Midas labs RTE-V850E/MA1-CB evaluation board - (CONFIG_RTE_CB_MA1), with kernel in ROM. */ - -MEMORY { - ROM : ORIGIN = 0x00000000, LENGTH = 0x00100000 - /* 1MB of SRAM. This memory is mirrored 4 times. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE - /* 32MB of SDRAM. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -SECTIONS { - ROMK_SECTIONS(ROM, SRAM) -} diff --git a/arch/v850/kernel/rte_ma1_cb.c b/arch/v850/kernel/rte_ma1_cb.c deleted file mode 100644 index 08abf3d5f8df..000000000000 --- a/arch/v850/kernel/rte_ma1_cb.c +++ /dev/null @@ -1,107 +0,0 @@ -/* - * arch/v850/kernel/rte_ma1_cb.c -- Midas labs RTE-V850E/MA1-CB board - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "mach.h" - - -/* SRAM and SDRAM are almost contiguous (with a small hole in between; - see mach_reserve_bootmem for details), so just use both as one big area. */ -#define RAM_START SRAM_ADDR -#define RAM_END (SDRAM_ADDR + SDRAM_SIZE) - - -void __init mach_early_init (void) -{ - rte_cb_early_init (); -} - -void __init mach_get_physical_ram (unsigned long *ram_start, - unsigned long *ram_len) -{ - *ram_start = RAM_START; - *ram_len = RAM_END - RAM_START; -} - -void __init mach_reserve_bootmem () -{ -#ifdef CONFIG_RTE_CB_MULTI - /* Prevent the kernel from touching the monitor's scratch RAM. */ - reserve_bootmem(MON_SCRATCH_ADDR, MON_SCRATCH_SIZE, - BOOTMEM_DEFAULT); -#endif - - /* The space between SRAM and SDRAM is filled with duplicate - images of SRAM. Prevent the kernel from using them. */ - reserve_bootmem (SRAM_ADDR + SRAM_SIZE, - SDRAM_ADDR - (SRAM_ADDR + SRAM_SIZE), - BOOTMEM_DEFAULT); -} - -void mach_gettimeofday (struct timespec *tv) -{ - tv->tv_sec = 0; - tv->tv_nsec = 0; -} - -/* Called before configuring an on-chip UART. */ -void rte_ma1_cb_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud) -{ - /* The RTE-MA1-CB connects some general-purpose I/O pins on the - CPU to the RTS/CTS lines of UART 0's serial connection. - I/O pins P42 and P43 are RTS and CTS respectively. */ - if (chan == 0) { - /* Put P42 & P43 in I/O port mode. */ - MA_PORT4_PMC &= ~0xC; - /* Make P42 an output, and P43 an input. */ - MA_PORT4_PM = (MA_PORT4_PM & ~0xC) | 0x8; - } - - /* Do pre-configuration for the actual UART. */ - ma_uart_pre_configure (chan, cflags, baud); -} - -void __init mach_init_irqs (void) -{ - unsigned tc; - - /* Initialize interrupts. */ - ma_init_irqs (); - rte_cb_init_irqs (); - - /* Use falling-edge-sensitivity for interrupts . */ - V850E_TIMER_C_SESC (0) &= ~0xC; - V850E_TIMER_C_SESC (1) &= ~0xF; - - /* INTP000-INTP011 are shared with `Timer C', so we have to set - up Timer C to pass them through as raw interrupts. */ - for (tc = 0; tc < 2; tc++) - /* Turn on the timer. */ - V850E_TIMER_C_TMCC0 (tc) |= V850E_TIMER_C_TMCC0_CAE; - - /* Make sure the relevant port0/port1 pins are assigned - interrupt duty. We used INTP001-INTP011 (don't screw with - INTP000 because the monitor uses it). */ - MA_PORT0_PMC |= 0x4; /* P02 (INTP001) in IRQ mode. */ - MA_PORT1_PMC |= 0x6; /* P11 (INTP010) & P12 (INTP011) in IRQ mode.*/ -} diff --git a/arch/v850/kernel/rte_ma1_cb.ld b/arch/v850/kernel/rte_ma1_cb.ld deleted file mode 100644 index c8e16d16be41..000000000000 --- a/arch/v850/kernel/rte_ma1_cb.ld +++ /dev/null @@ -1,57 +0,0 @@ -/* Linker script for the Midas labs RTE-V850E/MA1-CB evaluation board - (CONFIG_RTE_CB_MA1), with kernel in SDRAM, under Multi debugger. */ - -MEMORY { - /* 1MB of SRAM; we can't use the last 32KB, because it's used by - the monitor scratch-RAM. This memory is mirrored 4 times. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = (SRAM_SIZE - MON_SCRATCH_SIZE) - /* Monitor scratch RAM; only the interrupt vectors should go here. */ - MRAM : ORIGIN = MON_SCRATCH_ADDR, LENGTH = MON_SCRATCH_SIZE - /* 32MB of SDRAM. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -#ifdef CONFIG_RTE_CB_MA1_KSRAM -# define KRAM SRAM -#else -# define KRAM SDRAM -#endif - -SECTIONS { - /* We can't use RAMK_KRAM_CONTENTS because that puts the whole - kernel in a single ELF segment, and the Multi debugger (which - we use to load the kernel) appears to have bizarre problems - dealing with it. */ - - .text : { - __kram_start = . ; - TEXT_CONTENTS - } > KRAM - - .data : { - DATA_CONTENTS - BSS_CONTENTS - RAMK_INIT_CONTENTS - __kram_end = . ; - BOOTMAP_CONTENTS - - /* The address at which the interrupt vectors are initially - loaded by the loader. We can't load the interrupt vectors - directly into their target location, because the monitor - ROM for the GHS Multi debugger barfs if we try. - Unfortunately, Multi also doesn't deal correctly with ELF - sections where the LMA and VMA differ (it just ignores the - LMA), so we can't use that feature to work around the - problem! What we do instead is just put the interrupt - vectors into a normal section, and have the - `mach_early_init' function for Midas boards do the - necessary copying and relocation at runtime (this section - basically only contains `jr' instructions, so it's not - that hard). */ - . = ALIGN (0x10) ; - __intv_load_start = . ; - INTV_CONTENTS - } > KRAM - - .root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM -} diff --git a/arch/v850/kernel/rte_mb_a_pci.c b/arch/v850/kernel/rte_mb_a_pci.c deleted file mode 100644 index 687e367d8b64..000000000000 --- a/arch/v850/kernel/rte_mb_a_pci.c +++ /dev/null @@ -1,819 +0,0 @@ -/* - * arch/v850/kernel/mb_a_pci.c -- PCI support for Midas lab RTE-MOTHER-A board - * - * Copyright (C) 2001,02,03,05 NEC Electronics Corporation - * Copyright (C) 2001,02,03,05 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include - -/* __nomods_init is like __devinit, but is a no-op when modules are enabled. - This is used by some routines that can be called either during boot - or by a module. */ -#ifdef CONFIG_MODULES -#define __nomods_init /*nothing*/ -#else -#define __nomods_init __devinit -#endif - -/* PCI devices on the Mother-A board can only do DMA to/from the MB SRAM - (the RTE-V850E/MA1-CB cpu board doesn't support PCI access to - CPU-board memory), and since linux DMA buffers are allocated in - normal kernel memory, we basically have to copy DMA blocks around - (this is like a `bounce buffer'). When a DMA block is `mapped', we - allocate an identically sized block in MB SRAM, and if we're doing - output to the device, copy the CPU-memory block to the MB-SRAM block. - When an active block is `unmapped', we will copy the block back to - CPU memory if necessary, and then deallocate the MB SRAM block. - Ack. */ - -/* Where the motherboard SRAM is in the PCI-bus address space (the - first 512K of it is also mapped at PCI address 0). */ -#define PCI_MB_SRAM_ADDR 0x800000 - -/* Convert CPU-view MB SRAM address to/from PCI-view addresses of the - same memory. */ -#define MB_SRAM_TO_PCI(mb_sram_addr) \ - ((dma_addr_t)mb_sram_addr - MB_A_SRAM_ADDR + PCI_MB_SRAM_ADDR) -#define PCI_TO_MB_SRAM(pci_addr) \ - (void *)(pci_addr - PCI_MB_SRAM_ADDR + MB_A_SRAM_ADDR) - -static void pcibios_assign_resources (void); - -struct mb_pci_dev_irq { - unsigned dev; /* PCI device number */ - unsigned irq_base; /* First IRQ */ - unsigned query_pin; /* True if we should read the device's - Interrupt Pin info, and allocate - interrupt IRQ_BASE + PIN. */ -}; - -/* PCI interrupts are mapped statically to GBUS interrupts. */ -static struct mb_pci_dev_irq mb_pci_dev_irqs[] = { - /* Motherboard SB82558 ethernet controller */ - { 10, IRQ_MB_A_LAN, 0 }, - /* PCI slot 1 */ - { 8, IRQ_MB_A_PCI1(0), 1 }, - /* PCI slot 2 */ - { 9, IRQ_MB_A_PCI2(0), 1 } -}; -#define NUM_MB_PCI_DEV_IRQS ARRAY_SIZE(mb_pci_dev_irqs) - - -/* PCI configuration primitives. */ - -#define CONFIG_DMCFGA(bus, devfn, offs) \ - (0x80000000 \ - | ((offs) & ~0x3) \ - | ((devfn) << 8) \ - | ((bus)->number << 16)) - -static int -mb_pci_read (struct pci_bus *bus, unsigned devfn, int offs, int size, u32 *rval) -{ - u32 addr; - int flags; - - local_irq_save (flags); - - MB_A_PCI_PCICR = 0x7; - MB_A_PCI_DMCFGA = CONFIG_DMCFGA (bus, devfn, offs); - - addr = MB_A_PCI_IO_ADDR + (offs & 0x3); - - switch (size) { - case 1: *rval = *(volatile u8 *)addr; break; - case 2: *rval = *(volatile u16 *)addr; break; - case 4: *rval = *(volatile u32 *)addr; break; - } - - if (MB_A_PCI_PCISR & 0x2000) { - MB_A_PCI_PCISR = 0x2000; - *rval = ~0; - } - - MB_A_PCI_DMCFGA = 0; - - local_irq_restore (flags); - - return PCIBIOS_SUCCESSFUL; -} - -static int -mb_pci_write (struct pci_bus *bus, unsigned devfn, int offs, int size, u32 val) -{ - u32 addr; - int flags; - - local_irq_save (flags); - - MB_A_PCI_PCICR = 0x7; - MB_A_PCI_DMCFGA = CONFIG_DMCFGA (bus, devfn, offs); - - addr = MB_A_PCI_IO_ADDR + (offs & 0x3); - - switch (size) { - case 1: *(volatile u8 *)addr = val; break; - case 2: *(volatile u16 *)addr = val; break; - case 4: *(volatile u32 *)addr = val; break; - } - - if (MB_A_PCI_PCISR & 0x2000) - MB_A_PCI_PCISR = 0x2000; - - MB_A_PCI_DMCFGA = 0; - - local_irq_restore (flags); - - return PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops mb_pci_config_ops = { - .read = mb_pci_read, - .write = mb_pci_write, -}; - - -/* PCI Initialization. */ - -static struct pci_bus *mb_pci_bus = 0; - -/* Do initial PCI setup. */ -static int __devinit pcibios_init (void) -{ - u32 id = MB_A_PCI_PCIHIDR; - u16 vendor = id & 0xFFFF; - u16 device = (id >> 16) & 0xFFFF; - - if (vendor == PCI_VENDOR_ID_PLX && device == PCI_DEVICE_ID_PLX_9080) { - printk (KERN_INFO - "PCI: PLX Technology PCI9080 HOST/PCI bridge\n"); - - MB_A_PCI_PCICR = 0x147; - - MB_A_PCI_PCIBAR0 = 0x007FFF00; - MB_A_PCI_PCIBAR1 = 0x0000FF00; - MB_A_PCI_PCIBAR2 = 0x00800000; - - MB_A_PCI_PCILTR = 0x20; - - MB_A_PCI_PCIPBAM |= 0x3; - - MB_A_PCI_PCISR = ~0; /* Clear errors. */ - - /* Reprogram the motherboard's IO/config address space, - as we don't support the GCS7 address space that the - default uses. */ - - /* Significant address bits used for decoding PCI GCS5 space - accesses. */ - MB_A_PCI_DMRR = ~(MB_A_PCI_MEM_SIZE - 1); - - /* I don't understand this, but the SolutionGear example code - uses such an offset, and it doesn't work without it. XXX */ -#if GCS5_SIZE == 0x00800000 -#define GCS5_CFG_OFFS 0x00800000 -#else -#define GCS5_CFG_OFFS 0 -#endif - - /* Address bit values for matching. Note that we have to give - the address from the motherboard's point of view, which is - different than the CPU's. */ - /* PCI memory space. */ - MB_A_PCI_DMLBAM = GCS5_CFG_OFFS + 0x0; - /* PCI I/O space. */ - MB_A_PCI_DMLBAI = - GCS5_CFG_OFFS + (MB_A_PCI_IO_ADDR - GCS5_ADDR); - - mb_pci_bus = pci_scan_bus (0, &mb_pci_config_ops, 0); - - pcibios_assign_resources (); - } else - printk (KERN_ERR "PCI: HOST/PCI bridge not found\n"); - - return 0; -} - -subsys_initcall (pcibios_init); - -char __devinit *pcibios_setup (char *option) -{ - /* Don't handle any options. */ - return option; -} - - -int __nomods_init pcibios_enable_device (struct pci_dev *dev, int mask) -{ - u16 cmd, old_cmd; - int idx; - struct resource *r; - - pci_read_config_word(dev, PCI_COMMAND, &cmd); - old_cmd = cmd; - for (idx = 0; idx < 6; idx++) { - r = &dev->resource[idx]; - if (!r->start && r->end) { - printk(KERN_ERR "PCI: Device %s not available because " - "of resource collisions\n", pci_name(dev)); - return -EINVAL; - } - if (r->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - if (r->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - if (cmd != old_cmd) { - printk("PCI: Enabling device %s (%04x -> %04x)\n", - pci_name(dev), old_cmd, cmd); - pci_write_config_word(dev, PCI_COMMAND, cmd); - } - return 0; -} - - -/* Resource allocation. */ -static void __devinit pcibios_assign_resources (void) -{ - struct pci_dev *dev = NULL; - struct resource *r; - - for_each_pci_dev(dev) { - unsigned di_num; - unsigned class = dev->class >> 8; - - if (class && class != PCI_CLASS_BRIDGE_HOST) { - unsigned r_num; - for(r_num = 0; r_num < 6; r_num++) { - r = &dev->resource[r_num]; - if (!r->start && r->end) - pci_assign_resource (dev, r_num); - } - } - - /* Assign interrupts. */ - for (di_num = 0; di_num < NUM_MB_PCI_DEV_IRQS; di_num++) { - struct mb_pci_dev_irq *di = &mb_pci_dev_irqs[di_num]; - - if (di->dev == PCI_SLOT (dev->devfn)) { - unsigned irq = di->irq_base; - - if (di->query_pin) { - /* Find out which interrupt pin - this device uses (each PCI - slot has 4). */ - u8 irq_pin; - - pci_read_config_byte (dev, - PCI_INTERRUPT_PIN, - &irq_pin); - - if (irq_pin == 0) - /* Doesn't use interrupts. */ - continue; - else - irq += irq_pin - 1; - } - - pcibios_update_irq (dev, irq); - } - } - } -} - -void __devinit pcibios_update_irq (struct pci_dev *dev, int irq) -{ - dev->irq = irq; - pci_write_config_byte (dev, PCI_INTERRUPT_LINE, irq); -} - -void __devinit -pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) -{ - unsigned long offset = 0; - - if (res->flags & IORESOURCE_IO) { - offset = MB_A_PCI_IO_ADDR; - } else if (res->flags & IORESOURCE_MEM) { - offset = MB_A_PCI_MEM_ADDR; - } - - region->start = res->start - offset; - region->end = res->end - offset; -} - - -/* Stubs for things we don't use. */ - -/* Called after each bus is probed, but before its children are examined. */ -void pcibios_fixup_bus(struct pci_bus *b) -{ -} - -void -pcibios_align_resource (void *data, struct resource *res, - resource_size_t size, resource_size_t align) -{ -} - -void pcibios_set_master (struct pci_dev *dev) -{ -} - - -/* Mother-A SRAM memory allocation. This is a simple first-fit allocator. */ - -/* A memory free-list node. */ -struct mb_sram_free_area { - void *mem; - unsigned long size; - struct mb_sram_free_area *next; -}; - -/* The tail of the free-list, which starts out containing all the SRAM. */ -static struct mb_sram_free_area mb_sram_free_tail = { - (void *)MB_A_SRAM_ADDR, MB_A_SRAM_SIZE, 0 -}; - -/* The free-list. */ -static struct mb_sram_free_area *mb_sram_free_areas = &mb_sram_free_tail; - -/* The free-list of free free-list nodes. (:-) */ -static struct mb_sram_free_area *mb_sram_free_free_areas = 0; - -/* Spinlock protecting the above globals. */ -static DEFINE_SPINLOCK(mb_sram_lock); - -/* Allocate a memory block at least SIZE bytes long in the Mother-A SRAM - space. */ -static void *alloc_mb_sram (size_t size) -{ - struct mb_sram_free_area *prev, *fa; - unsigned long flags; - void *mem = 0; - - spin_lock_irqsave (mb_sram_lock, flags); - - /* Look for a free area that can contain SIZE bytes. */ - for (prev = 0, fa = mb_sram_free_areas; fa; prev = fa, fa = fa->next) - if (fa->size >= size) { - /* Found one! */ - mem = fa->mem; - - if (fa->size == size) { - /* In fact, it fits exactly, so remove - this node from the free-list. */ - if (prev) - prev->next = fa->next; - else - mb_sram_free_areas = fa->next; - /* Put it on the free-list-entry-free-list. */ - fa->next = mb_sram_free_free_areas; - mb_sram_free_free_areas = fa; - } else { - /* FA is bigger than SIZE, so just - reduce its size to account for this - allocation. */ - fa->mem += size; - fa->size -= size; - } - - break; - } - - spin_unlock_irqrestore (mb_sram_lock, flags); - - return mem; -} - -/* Return the memory area MEM of size SIZE to the MB SRAM free pool. */ -static void free_mb_sram (void *mem, size_t size) -{ - struct mb_sram_free_area *prev, *fa, *new_fa; - unsigned long flags; - void *end = mem + size; - - spin_lock_irqsave (mb_sram_lock, flags); - - retry: - /* Find an adjacent free-list entry. */ - for (prev = 0, fa = mb_sram_free_areas; fa; prev = fa, fa = fa->next) - if (fa->mem == end) { - /* FA is just after MEM, grow down to encompass it. */ - fa->mem = mem; - fa->size += size; - goto done; - } else if (fa->mem + fa->size == mem) { - struct mb_sram_free_area *next_fa = fa->next; - - /* FA is just before MEM, expand to encompass it. */ - fa->size += size; - - /* See if FA can now be merged with its successor. */ - if (next_fa && fa->mem + fa->size == next_fa->mem) { - /* Yup; merge NEXT_FA's info into FA. */ - fa->size += next_fa->size; - fa->next = next_fa->next; - /* Free NEXT_FA. */ - next_fa->next = mb_sram_free_free_areas; - mb_sram_free_free_areas = next_fa; - } - goto done; - } else if (fa->mem > mem) - /* We've reached the right spot in the free-list - without finding an adjacent free-area, so add - a new free area to hold mem. */ - break; - - /* Make a new free-list entry. */ - - /* First, get a free-list entry. */ - if (! mb_sram_free_free_areas) { - /* There are none, so make some. */ - void *block; - size_t block_size = sizeof (struct mb_sram_free_area) * 8; - - /* Don't hold the lock while calling kmalloc (I'm not - sure whether it would be a problem, since we use - GFP_ATOMIC, but it makes me nervous). */ - spin_unlock_irqrestore (mb_sram_lock, flags); - - block = kmalloc (block_size, GFP_ATOMIC); - if (! block) - panic ("free_mb_sram: can't allocate free-list entry"); - - /* Now get the lock back. */ - spin_lock_irqsave (mb_sram_lock, flags); - - /* Add the new free free-list entries. */ - while (block_size > 0) { - struct mb_sram_free_area *nfa = block; - nfa->next = mb_sram_free_free_areas; - mb_sram_free_free_areas = nfa; - block += sizeof *nfa; - block_size -= sizeof *nfa; - } - - /* Since we dropped the lock to call kmalloc, the - free-list could have changed, so retry from the - beginning. */ - goto retry; - } - - /* Remove NEW_FA from the free-list of free-list entries. */ - new_fa = mb_sram_free_free_areas; - mb_sram_free_free_areas = new_fa->next; - - /* NEW_FA initially holds only MEM. */ - new_fa->mem = mem; - new_fa->size = size; - - /* Insert NEW_FA in the free-list between PREV and FA. */ - new_fa->next = fa; - if (prev) - prev->next = new_fa; - else - mb_sram_free_areas = new_fa; - - done: - spin_unlock_irqrestore (mb_sram_lock, flags); -} - - -/* Maintainence of CPU -> Mother-A DMA mappings. */ - -struct dma_mapping { - void *cpu_addr; - void *mb_sram_addr; - size_t size; - struct dma_mapping *next; -}; - -/* A list of mappings from CPU addresses to MB SRAM addresses for active - DMA blocks (that have been `granted' to the PCI device). */ -static struct dma_mapping *active_dma_mappings = 0; - -/* A list of free mapping objects. */ -static struct dma_mapping *free_dma_mappings = 0; - -/* Spinlock protecting the above globals. */ -static DEFINE_SPINLOCK(dma_mappings_lock); - -static struct dma_mapping *new_dma_mapping (size_t size) -{ - unsigned long flags; - struct dma_mapping *mapping; - void *mb_sram_block = alloc_mb_sram (size); - - if (! mb_sram_block) - return 0; - - spin_lock_irqsave (dma_mappings_lock, flags); - - if (! free_dma_mappings) { - /* We're out of mapping structures, make more. */ - void *mblock; - size_t mblock_size = sizeof (struct dma_mapping) * 8; - - /* Don't hold the lock while calling kmalloc (I'm not - sure whether it would be a problem, since we use - GFP_ATOMIC, but it makes me nervous). */ - spin_unlock_irqrestore (dma_mappings_lock, flags); - - mblock = kmalloc (mblock_size, GFP_ATOMIC); - if (! mblock) { - free_mb_sram (mb_sram_block, size); - return 0; - } - - /* Get the lock back. */ - spin_lock_irqsave (dma_mappings_lock, flags); - - /* Add the new mapping structures to the free-list. */ - while (mblock_size > 0) { - struct dma_mapping *fm = mblock; - fm->next = free_dma_mappings; - free_dma_mappings = fm; - mblock += sizeof *fm; - mblock_size -= sizeof *fm; - } - } - - /* Get a mapping struct from the freelist. */ - mapping = free_dma_mappings; - free_dma_mappings = mapping->next; - - /* Initialize the mapping. Other fields should be filled in by - caller. */ - mapping->mb_sram_addr = mb_sram_block; - mapping->size = size; - - /* Add it to the list of active mappings. */ - mapping->next = active_dma_mappings; - active_dma_mappings = mapping; - - spin_unlock_irqrestore (dma_mappings_lock, flags); - - return mapping; -} - -static struct dma_mapping *find_dma_mapping (void *mb_sram_addr) -{ - unsigned long flags; - struct dma_mapping *mapping; - - spin_lock_irqsave (dma_mappings_lock, flags); - - for (mapping = active_dma_mappings; mapping; mapping = mapping->next) - if (mapping->mb_sram_addr == mb_sram_addr) { - spin_unlock_irqrestore (dma_mappings_lock, flags); - return mapping; - } - - panic ("find_dma_mapping: unmapped PCI DMA addr 0x%x", - MB_SRAM_TO_PCI (mb_sram_addr)); -} - -static struct dma_mapping *deactivate_dma_mapping (void *mb_sram_addr) -{ - unsigned long flags; - struct dma_mapping *mapping, *prev; - - spin_lock_irqsave (dma_mappings_lock, flags); - - for (prev = 0, mapping = active_dma_mappings; - mapping; - prev = mapping, mapping = mapping->next) - { - if (mapping->mb_sram_addr == mb_sram_addr) { - /* This is the MAPPING; deactivate it. */ - if (prev) - prev->next = mapping->next; - else - active_dma_mappings = mapping->next; - - spin_unlock_irqrestore (dma_mappings_lock, flags); - - return mapping; - } - } - - panic ("deactivate_dma_mapping: unmapped PCI DMA addr 0x%x", - MB_SRAM_TO_PCI (mb_sram_addr)); -} - -/* Return MAPPING to the freelist. */ -static inline void -free_dma_mapping (struct dma_mapping *mapping) -{ - unsigned long flags; - - free_mb_sram (mapping->mb_sram_addr, mapping->size); - - spin_lock_irqsave (dma_mappings_lock, flags); - - mapping->next = free_dma_mappings; - free_dma_mappings = mapping; - - spin_unlock_irqrestore (dma_mappings_lock, flags); -} - - -/* Single PCI DMA mappings. */ - -/* `Grant' to PDEV the memory block at CPU_ADDR, for doing DMA. The - 32-bit PCI bus mastering address to use is returned. the device owns - this memory until either pci_unmap_single or pci_dma_sync_single is - performed. */ -dma_addr_t -pci_map_single (struct pci_dev *pdev, void *cpu_addr, size_t size, int dir) -{ - struct dma_mapping *mapping = new_dma_mapping (size); - - if (! mapping) - return 0; - - mapping->cpu_addr = cpu_addr; - - if (dir == PCI_DMA_BIDIRECTIONAL || dir == PCI_DMA_TODEVICE) - memcpy (mapping->mb_sram_addr, cpu_addr, size); - - return MB_SRAM_TO_PCI (mapping->mb_sram_addr); -} - -/* Return to the CPU the PCI DMA memory block previously `granted' to - PDEV, at DMA_ADDR. */ -void pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, - int dir) -{ - void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr); - struct dma_mapping *mapping = deactivate_dma_mapping (mb_sram_addr); - - if (size != mapping->size) - panic ("pci_unmap_single: size (%d) doesn't match" - " size of mapping at PCI DMA addr 0x%x (%d)\n", - size, dma_addr, mapping->size); - - /* Copy back the DMA'd contents if necessary. */ - if (dir == PCI_DMA_BIDIRECTIONAL || dir == PCI_DMA_FROMDEVICE) - memcpy (mapping->cpu_addr, mb_sram_addr, size); - - /* Return mapping to the freelist. */ - free_dma_mapping (mapping); -} - -/* Make physical memory consistent for a single streaming mode DMA - translation after a transfer. - - If you perform a pci_map_single() but wish to interrogate the - buffer using the cpu, yet do not wish to teardown the PCI dma - mapping, you must call this function before doing so. At the next - point you give the PCI dma address back to the card, you must first - perform a pci_dma_sync_for_device, and then the device again owns - the buffer. */ -void -pci_dma_sync_single_for_cpu (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, - int dir) -{ - void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr); - struct dma_mapping *mapping = find_dma_mapping (mb_sram_addr); - - /* Synchronize the DMA buffer with the CPU buffer if necessary. */ - if (dir == PCI_DMA_FROMDEVICE) - memcpy (mapping->cpu_addr, mb_sram_addr, size); - else if (dir == PCI_DMA_TODEVICE) - ; /* nothing to do */ - else - panic("pci_dma_sync_single: unsupported sync dir: %d", dir); -} - -void -pci_dma_sync_single_for_device (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, - int dir) -{ - void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr); - struct dma_mapping *mapping = find_dma_mapping (mb_sram_addr); - - /* Synchronize the DMA buffer with the CPU buffer if necessary. */ - if (dir == PCI_DMA_FROMDEVICE) - ; /* nothing to do */ - else if (dir == PCI_DMA_TODEVICE) - memcpy (mb_sram_addr, mapping->cpu_addr, size); - else - panic("pci_dma_sync_single: unsupported sync dir: %d", dir); -} - - -/* Scatter-gather PCI DMA mappings. */ - -/* Do multiple DMA mappings at once. */ -int -pci_map_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, int dir) -{ - BUG (); - return 0; -} - -/* Unmap multiple DMA mappings at once. */ -void -pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,int dir) -{ - BUG (); -} - -/* Make physical memory consistent for a set of streaming mode DMA - translations after a transfer. The same as pci_dma_sync_single_* but - for a scatter-gather list, same rules and usage. */ - -void -pci_dma_sync_sg_for_cpu (struct pci_dev *dev, - struct scatterlist *sg, int sg_len, - int dir) -{ - BUG (); -} - -void -pci_dma_sync_sg_for_device (struct pci_dev *dev, - struct scatterlist *sg, int sg_len, - int dir) -{ - BUG (); -} - - -/* PCI mem mapping. */ - -/* Allocate and map kernel buffer using consistent mode DMA for PCI - device. Returns non-NULL cpu-view pointer to the buffer if - successful and sets *DMA_ADDR to the pci side dma address as well, - else DMA_ADDR is undefined. */ -void * -pci_alloc_consistent (struct pci_dev *pdev, size_t size, dma_addr_t *dma_addr) -{ - void *mb_sram_mem = alloc_mb_sram (size); - if (mb_sram_mem) - *dma_addr = MB_SRAM_TO_PCI (mb_sram_mem); - return mb_sram_mem; -} - -/* Free and unmap a consistent DMA buffer. CPU_ADDR and DMA_ADDR must - be values that were returned from pci_alloc_consistent. SIZE must be - the same as what as passed into pci_alloc_consistent. References to - the memory and mappings associated with CPU_ADDR or DMA_ADDR past - this call are illegal. */ -void -pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr, - dma_addr_t dma_addr) -{ - void *mb_sram_mem = PCI_TO_MB_SRAM (dma_addr); - free_mb_sram (mb_sram_mem, size); -} - - -/* iomap/iomap */ - -void __iomem *pci_iomap (struct pci_dev *dev, int bar, unsigned long max) -{ - resource_size_t start = pci_resource_start (dev, bar); - resource_size_t len = pci_resource_len (dev, bar); - - if (!start || len == 0) - return 0; - - /* None of the ioremap functions actually do anything, other than - re-casting their argument, so don't bother differentiating them. */ - return ioremap (start, len); -} - -void pci_iounmap (struct pci_dev *dev, void __iomem *addr) -{ - /* nothing */ -} - - -/* symbol exports (for modules) */ - -EXPORT_SYMBOL (pci_map_single); -EXPORT_SYMBOL (pci_unmap_single); -EXPORT_SYMBOL (pci_alloc_consistent); -EXPORT_SYMBOL (pci_free_consistent); -EXPORT_SYMBOL (pci_dma_sync_single_for_cpu); -EXPORT_SYMBOL (pci_dma_sync_single_for_device); -EXPORT_SYMBOL (pci_iomap); -EXPORT_SYMBOL (pci_iounmap); diff --git a/arch/v850/kernel/rte_me2_cb.c b/arch/v850/kernel/rte_me2_cb.c deleted file mode 100644 index 46803d48dffe..000000000000 --- a/arch/v850/kernel/rte_me2_cb.c +++ /dev/null @@ -1,298 +0,0 @@ -/* - * arch/v850/kernel/rte_me2_cb.c -- Midas labs RTE-V850E/ME2-CB board - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "mach.h" - -extern unsigned long *_intv_start; -extern unsigned long *_intv_end; - -/* LED access routines. */ -extern unsigned read_leds (int pos, char *buf, int len); -extern unsigned write_leds (int pos, const char *buf, int len); - - -/* SDRAM are almost contiguous (with a small hole in between; - see mach_reserve_bootmem for details), so just use both as one big area. */ -#define RAM_START SDRAM_ADDR -#define RAM_END (SDRAM_ADDR + SDRAM_SIZE) - - -void __init mach_get_physical_ram (unsigned long *ram_start, - unsigned long *ram_len) -{ - *ram_start = RAM_START; - *ram_len = RAM_END - RAM_START; -} - -void mach_gettimeofday (struct timespec *tv) -{ - tv->tv_sec = 0; - tv->tv_nsec = 0; -} - -/* Called before configuring an on-chip UART. */ -void rte_me2_cb_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud) -{ - /* The RTE-V850E/ME2-CB connects some general-purpose I/O - pins on the CPU to the RTS/CTS lines of UARTB channel 0's - serial connection. - I/O pins P21 and P22 are RTS and CTS respectively. */ - if (chan == 0) { - /* Put P21 & P22 in I/O port mode. */ - ME2_PORT2_PMC &= ~0x6; - /* Make P21 and output, and P22 an input. */ - ME2_PORT2_PM = (ME2_PORT2_PM & ~0xC) | 0x4; - } - - me2_uart_pre_configure (chan, cflags, baud); -} - -void __init mach_init_irqs (void) -{ - /* Initialize interrupts. */ - me2_init_irqs (); - rte_me2_cb_init_irqs (); -} - -#ifdef CONFIG_ROM_KERNEL -/* Initialization for kernel in ROM. */ -static inline rom_kernel_init (void) -{ - /* If the kernel is in ROM, we have to copy any initialized data - from ROM into RAM. */ - extern unsigned long _data_load_start, _sdata, _edata; - register unsigned long *src = &_data_load_start; - register unsigned long *dst = &_sdata, *end = &_edata; - - while (dst != end) - *dst++ = *src++; -} -#endif /* CONFIG_ROM_KERNEL */ - -static void install_interrupt_vectors (void) -{ - unsigned long *p1, *p2; - - ME2_IRAMM = 0x03; /* V850E/ME2 iRAM write mode */ - - /* vector copy to iRAM */ - p1 = (unsigned long *)0; /* v85x vector start */ - p2 = (unsigned long *)&_intv_start; - while (p2 < (unsigned long *)&_intv_end) - *p1++ = *p2++; - - ME2_IRAMM = 0x00; /* V850E/ME2 iRAM read mode */ -} - -/* CompactFlash */ - -static void cf_power_on (void) -{ - /* CF card detected? */ - if (CB_CF_STS0 & 0x0030) - return; - - CB_CF_REG0 = 0x0002; /* reest on */ - mdelay (10); - CB_CF_REG0 = 0x0003; /* power on */ - mdelay (10); - CB_CF_REG0 = 0x0001; /* reset off */ - mdelay (10); -} - -static void cf_power_off (void) -{ - CB_CF_REG0 = 0x0003; /* power on */ - mdelay (10); - CB_CF_REG0 = 0x0002; /* reest on */ - mdelay (10); -} - -void __init mach_early_init (void) -{ - install_interrupt_vectors (); - - /* CS1 SDRAM instruction cache enable */ - v850e_cache_enable (0x04, 0x03, 0); - - rte_cb_early_init (); - - /* CompactFlash power on */ - cf_power_on (); - -#if defined (CONFIG_ROM_KERNEL) - rom_kernel_init (); -#endif -} - - -/* RTE-V850E/ME2-CB Programmable Interrupt Controller. */ - -static struct cb_pic_irq_init cb_pic_irq_inits[] = { - { "CB_EXTTM0", IRQ_CB_EXTTM0, 1, 1, 6 }, - { "CB_EXTSIO", IRQ_CB_EXTSIO, 1, 1, 6 }, - { "CB_TOVER", IRQ_CB_TOVER, 1, 1, 6 }, - { "CB_GINT0", IRQ_CB_GINT0, 1, 1, 6 }, - { "CB_USB", IRQ_CB_USB, 1, 1, 6 }, - { "CB_LANC", IRQ_CB_LANC, 1, 1, 6 }, - { "CB_USB_VBUS_ON", IRQ_CB_USB_VBUS_ON, 1, 1, 6 }, - { "CB_USB_VBUS_OFF", IRQ_CB_USB_VBUS_OFF, 1, 1, 6 }, - { "CB_EXTTM1", IRQ_CB_EXTTM1, 1, 1, 6 }, - { "CB_EXTTM2", IRQ_CB_EXTTM2, 1, 1, 6 }, - { 0 } -}; -#define NUM_CB_PIC_IRQ_INITS (ARRAY_SIZE(cb_pic_irq_inits) - 1) - -static struct hw_interrupt_type cb_pic_hw_itypes[NUM_CB_PIC_IRQ_INITS]; -static unsigned char cb_pic_active_irqs = 0; - -void __init rte_me2_cb_init_irqs (void) -{ - cb_pic_init_irq_types (cb_pic_irq_inits, cb_pic_hw_itypes); - - /* Initalize on board PIC1 (not PIC0) enable */ - CB_PIC_INT0M = 0x0000; - CB_PIC_INT1M = 0x0000; - CB_PIC_INTR = 0x0000; - CB_PIC_INTEN |= CB_PIC_INT1EN; - - ME2_PORT2_PMC |= 0x08; /* INTP23/SCK1 mode */ - ME2_PORT2_PFC &= ~0x08; /* INTP23 mode */ - ME2_INTR(2) &= ~0x08; /* INTP23 falling-edge detect */ - ME2_INTF(2) &= ~0x08; /* " */ - - rte_cb_init_irqs (); /* gbus &c */ -} - - -/* Enable interrupt handling for interrupt IRQ. */ -void cb_pic_enable_irq (unsigned irq) -{ - CB_PIC_INT1M |= 1 << (irq - CB_PIC_BASE_IRQ); -} - -void cb_pic_disable_irq (unsigned irq) -{ - CB_PIC_INT1M &= ~(1 << (irq - CB_PIC_BASE_IRQ)); -} - -void cb_pic_shutdown_irq (unsigned irq) -{ - cb_pic_disable_irq (irq); - - if (--cb_pic_active_irqs == 0) - free_irq (IRQ_CB_PIC, 0); - - CB_PIC_INT1M &= ~(1 << (irq - CB_PIC_BASE_IRQ)); -} - -static irqreturn_t cb_pic_handle_irq (int irq, void *dev_id, - struct pt_regs *regs) -{ - irqreturn_t rval = IRQ_NONE; - unsigned status = CB_PIC_INTR; - unsigned enable = CB_PIC_INT1M; - - /* Only pay attention to enabled interrupts. */ - status &= enable; - - CB_PIC_INTEN &= ~CB_PIC_INT1EN; - - if (status) { - unsigned mask = 1; - - irq = CB_PIC_BASE_IRQ; - do { - /* There's an active interrupt, find out which one, - and call its handler. */ - while (! (status & mask)) { - irq++; - mask <<= 1; - } - status &= ~mask; - - CB_PIC_INTR = mask; - - /* Recursively call handle_irq to handle it. */ - handle_irq (irq, regs); - rval = IRQ_HANDLED; - } while (status); - } - - CB_PIC_INTEN |= CB_PIC_INT1EN; - - return rval; -} - - -static void irq_nop (unsigned irq) { } - -static unsigned cb_pic_startup_irq (unsigned irq) -{ - int rval; - - if (cb_pic_active_irqs == 0) { - rval = request_irq (IRQ_CB_PIC, cb_pic_handle_irq, - IRQF_DISABLED, "cb_pic_handler", 0); - if (rval != 0) - return rval; - } - - cb_pic_active_irqs++; - - cb_pic_enable_irq (irq); - - return 0; -} - -/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array - INITS (which is terminated by an entry with the name field == 0). */ -void __init cb_pic_init_irq_types (struct cb_pic_irq_init *inits, - struct hw_interrupt_type *hw_irq_types) -{ - struct cb_pic_irq_init *init; - for (init = inits; init->name; init++) { - struct hw_interrupt_type *hwit = hw_irq_types++; - - hwit->typename = init->name; - - hwit->startup = cb_pic_startup_irq; - hwit->shutdown = cb_pic_shutdown_irq; - hwit->enable = cb_pic_enable_irq; - hwit->disable = cb_pic_disable_irq; - hwit->ack = irq_nop; - hwit->end = irq_nop; - - /* Initialize kernel IRQ infrastructure for this interrupt. */ - init_irq_handlers(init->base, init->num, init->interval, hwit); - } -} diff --git a/arch/v850/kernel/rte_me2_cb.ld b/arch/v850/kernel/rte_me2_cb.ld deleted file mode 100644 index cf0766065ec6..000000000000 --- a/arch/v850/kernel/rte_me2_cb.ld +++ /dev/null @@ -1,30 +0,0 @@ -/* Linker script for the Midas labs RTE-V850E/ME2-CB evaluation board - (CONFIG_RTE_CB_ME2), with kernel in SDRAM. */ - -MEMORY { - /* 128Kbyte of IRAM */ - IRAM : ORIGIN = 0x00000000, LENGTH = 0x00020000 - - /* 32MB of SDRAM. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -#define KRAM SDRAM - -SECTIONS { - .text : { - __kram_start = . ; - TEXT_CONTENTS - INTV_CONTENTS /* copy to iRAM (0x0-0x620) */ - } > KRAM - - .data : { - DATA_CONTENTS - BSS_CONTENTS - RAMK_INIT_CONTENTS - __kram_end = . ; - BOOTMAP_CONTENTS - } > KRAM - - .root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM -} diff --git a/arch/v850/kernel/rte_nb85e_cb-multi.ld b/arch/v850/kernel/rte_nb85e_cb-multi.ld deleted file mode 100644 index de347b4fffac..000000000000 --- a/arch/v850/kernel/rte_nb85e_cb-multi.ld +++ /dev/null @@ -1,57 +0,0 @@ -/* Linker script for the Midas labs RTE-NB85E-CB evaluation board - (CONFIG_RTE_CB_NB85E), with the Multi debugger ROM monitor . */ - -MEMORY { - /* 1MB of SRAM; we can't use the last 96KB, because it's used by - the monitor scratch-RAM. This memory is mirrored 4 times. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = (SRAM_SIZE - MON_SCRATCH_SIZE) - /* Monitor scratch RAM; only the interrupt vectors should go here. */ - MRAM : ORIGIN = MON_SCRATCH_ADDR, LENGTH = MON_SCRATCH_SIZE - /* 16MB of SDRAM. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -#ifdef CONFIG_RTE_CB_NB85E_KSRAM -# define KRAM SRAM -#else -# define KRAM SDRAM -#endif - -SECTIONS { - /* We can't use RAMK_KRAM_CONTENTS because that puts the whole - kernel in a single ELF segment, and the Multi debugger (which - we use to load the kernel) appears to have bizarre problems - dealing with it. */ - - .text : { - __kram_start = . ; - TEXT_CONTENTS - } > KRAM - - .data : { - DATA_CONTENTS - BSS_CONTENTS - RAMK_INIT_CONTENTS - __kram_end = . ; - BOOTMAP_CONTENTS - - /* The address at which the interrupt vectors are initially - loaded by the loader. We can't load the interrupt vectors - directly into their target location, because the monitor - ROM for the GHS Multi debugger barfs if we try. - Unfortunately, Multi also doesn't deal correctly with ELF - sections where the LMA and VMA differ (it just ignores the - LMA), so we can't use that feature to work around the - problem! What we do instead is just put the interrupt - vectors into a normal section, and have the - `mach_early_init' function for Midas boards do the - necessary copying and relocation at runtime (this section - basically only contains `jr' instructions, so it's not - that hard). */ - . = ALIGN (0x10) ; - __intv_load_start = . ; - INTV_CONTENTS - } > KRAM - - .root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM -} diff --git a/arch/v850/kernel/rte_nb85e_cb.c b/arch/v850/kernel/rte_nb85e_cb.c deleted file mode 100644 index b4a045da5d70..000000000000 --- a/arch/v850/kernel/rte_nb85e_cb.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * arch/v850/kernel/rte_nb85e_cb.c -- Midas labs RTE-V850E/NB85E-CB board - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "mach.h" - -void __init mach_early_init (void) -{ - /* Configure caching; some possible settings: - - BHC = 0x0000, DCC = 0x0000 -- all caching disabled - BHC = 0x0040, DCC = 0x0000 -- SDRAM: icache only - BHC = 0x0080, DCC = 0x0C00 -- SDRAM: write-back dcache only - BHC = 0x00C0, DCC = 0x0C00 -- SDRAM: icache + write-back dcache - BHC = 0x00C0, DCC = 0x0800 -- SDRAM: icache + write-thru dcache - - We can only cache SDRAM (we can't use cache SRAM because it's in - the same memory region as the on-chip RAM and I/O space). - - Unfortunately, the dcache seems to be buggy, so we only use the - icache for now. */ - v850e_cache_enable (0x0040 /*BHC*/, 0x0003 /*ICC*/, 0x0000 /*DCC*/); - - rte_cb_early_init (); -} - -void __init mach_get_physical_ram (unsigned long *ram_start, - unsigned long *ram_len) -{ - /* We just use SDRAM here. */ - *ram_start = SDRAM_ADDR; - *ram_len = SDRAM_SIZE; -} - -void mach_gettimeofday (struct timespec *tv) -{ - tv->tv_sec = 0; - tv->tv_nsec = 0; -} - -/* Called before configuring an on-chip UART. */ -void rte_nb85e_cb_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud) -{ - /* The RTE-NB85E-CB connects some general-purpose I/O pins on the - CPU to the RTS/CTS lines the UART's serial connection, as follows: - P00 = CTS (in), P01 = DSR (in), P02 = RTS (out), P03 = DTR (out). */ - - TEG_PORT0_PM = 0x03; /* P00 and P01 inputs, P02 and P03 outputs */ - TEG_PORT0_IO = 0x03; /* Accept input */ - - /* Do pre-configuration for the actual UART. */ - teg_uart_pre_configure (chan, cflags, baud); -} - -void __init mach_init_irqs (void) -{ - teg_init_irqs (); - rte_cb_init_irqs (); -} diff --git a/arch/v850/kernel/rte_nb85e_cb.ld b/arch/v850/kernel/rte_nb85e_cb.ld deleted file mode 100644 index b672f484f085..000000000000 --- a/arch/v850/kernel/rte_nb85e_cb.ld +++ /dev/null @@ -1,22 +0,0 @@ -/* Linker script for the Midas labs RTE-NB85E-CB evaluation board - (CONFIG_RTE_CB_NB85E). */ - -MEMORY { - LOW : ORIGIN = 0x0, LENGTH = 0x00100000 - /* 1MB of SRAM This memory is mirrored 4 times. */ - SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE - /* 16MB of SDRAM. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -#ifdef CONFIG_RTE_CB_NB85E_KSRAM -# define KRAM SRAM -#else -# define KRAM SDRAM -#endif - -SECTIONS { - .intv : { INTV_CONTENTS } > LOW - .sram : { RAMK_KRAM_CONTENTS } > KRAM - .root : { ROOT_FS_CONTENTS } > SDRAM -} diff --git a/arch/v850/kernel/setup.c b/arch/v850/kernel/setup.c deleted file mode 100644 index 10335cecf7bd..000000000000 --- a/arch/v850/kernel/setup.c +++ /dev/null @@ -1,329 +0,0 @@ -/* - * arch/v850/kernel/setup.c -- Arch-dependent initialization functions - * - * Copyright (C) 2001,02,03,05,06 NEC Electronics Corporation - * Copyright (C) 2001,02,03,05,06 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include /* we don't have swap, but for nr_free_pages */ -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include "mach.h" - -/* These symbols are all defined in the linker map to delineate various - statically allocated regions of memory. */ - -extern char _intv_start, _intv_end; -/* `kram' is only used if the kernel uses part of normal user RAM. */ -extern char _kram_start __attribute__ ((__weak__)); -extern char _kram_end __attribute__ ((__weak__)); -extern char _init_start, _init_end; -extern char _bootmap; -extern char _stext, _etext, _sdata, _edata, _sbss, _ebss; -/* Many platforms use an embedded root image. */ -extern char _root_fs_image_start __attribute__ ((__weak__)); -extern char _root_fs_image_end __attribute__ ((__weak__)); - - -char __initdata command_line[COMMAND_LINE_SIZE]; - -/* Memory not used by the kernel. */ -static unsigned long total_ram_pages; - -/* System RAM. */ -static unsigned long ram_start = 0, ram_len = 0; - - -#define ADDR_TO_PAGE_UP(x) ((((unsigned long)x) + PAGE_SIZE-1) >> PAGE_SHIFT) -#define ADDR_TO_PAGE(x) (((unsigned long)x) >> PAGE_SHIFT) -#define PAGE_TO_ADDR(x) (((unsigned long)x) << PAGE_SHIFT) - -static void init_mem_alloc (unsigned long ram_start, unsigned long ram_len); - -void set_mem_root (void *addr, size_t len, char *cmd_line); - - -void __init setup_arch (char **cmdline) -{ - /* Keep a copy of command line */ - *cmdline = command_line; - memcpy (boot_command_line, command_line, COMMAND_LINE_SIZE); - boot_command_line[COMMAND_LINE_SIZE - 1] = '\0'; - - console_verbose (); - - init_mm.start_code = (unsigned long) &_stext; - init_mm.end_code = (unsigned long) &_etext; - init_mm.end_data = (unsigned long) &_edata; - init_mm.brk = (unsigned long) &_kram_end; - - /* Find out what mem this machine has. */ - mach_get_physical_ram (&ram_start, &ram_len); - /* ... and tell the kernel about it. */ - init_mem_alloc (ram_start, ram_len); - - printk (KERN_INFO "CPU: %s\nPlatform: %s\n", - CPU_MODEL_LONG, PLATFORM_LONG); - - /* do machine-specific setups. */ - mach_setup (cmdline); - -#ifdef CONFIG_MTD - if (!ROOT_DEV && &_root_fs_image_end > &_root_fs_image_start) - set_mem_root (&_root_fs_image_start, - &_root_fs_image_end - &_root_fs_image_start, - *cmdline); -#endif -} - -void __init trap_init (void) -{ -} - -#ifdef CONFIG_MTD - -/* From drivers/mtd/devices/slram.c */ -#define SLRAM_BLK_SZ 0x4000 - -/* Set the root filesystem to be the given memory region. - Some parameter may be appended to CMD_LINE. */ -void set_mem_root (void *addr, size_t len, char *cmd_line) -{ - /* Some sort of idiocy in MTD means we must supply a length that's - a multiple of SLRAM_BLK_SZ. We just round up the real length, - as the file system shouldn't attempt to access anything beyond - the end of the image anyway. */ - len = (((len - 1) + SLRAM_BLK_SZ) / SLRAM_BLK_SZ) * SLRAM_BLK_SZ; - - /* The only way to pass info to the MTD slram driver is via - the command line. */ - if (*cmd_line) { - cmd_line += strlen (cmd_line); - *cmd_line++ = ' '; - } - sprintf (cmd_line, "slram=root,0x%x,+0x%x", (u32)addr, (u32)len); - - ROOT_DEV = MKDEV (MTD_BLOCK_MAJOR, 0); -} -#endif - - -static void irq_nop (unsigned irq) { } -static unsigned irq_zero (unsigned irq) { return 0; } - -static void nmi_end (unsigned irq) -{ - if (irq != IRQ_NMI (0)) { - printk (KERN_CRIT "NMI %d is unrecoverable; restarting...", - irq - IRQ_NMI (0)); - machine_restart (0); - } -} - -static struct hw_interrupt_type nmi_irq_type = { - .typename = "NMI", - .startup = irq_zero, /* startup */ - .shutdown = irq_nop, /* shutdown */ - .enable = irq_nop, /* enable */ - .disable = irq_nop, /* disable */ - .ack = irq_nop, /* ack */ - .end = nmi_end, /* end */ -}; - -void __init init_IRQ (void) -{ - init_irq_handlers (0, NUM_MACH_IRQS, 1, 0); - init_irq_handlers (IRQ_NMI (0), NUM_NMIS, 1, &nmi_irq_type); - mach_init_irqs (); -} - - -void __init mem_init (void) -{ - max_mapnr = MAP_NR (ram_start + ram_len); - - num_physpages = ADDR_TO_PAGE (ram_len); - - total_ram_pages = free_all_bootmem (); - - printk (KERN_INFO - "Memory: %luK/%luK available" - " (%luK kernel code, %luK data)\n", - PAGE_TO_ADDR (nr_free_pages()) / 1024, - ram_len / 1024, - ((unsigned long)&_etext - (unsigned long)&_stext) / 1024, - ((unsigned long)&_ebss - (unsigned long)&_sdata) / 1024); -} - -void free_initmem (void) -{ - unsigned long ram_end = ram_start + ram_len; - unsigned long start = PAGE_ALIGN ((unsigned long)(&_init_start)); - - if (start >= ram_start && start < ram_end) { - unsigned long addr; - unsigned long end = PAGE_ALIGN ((unsigned long)(&_init_end)); - - if (end > ram_end) - end = ram_end; - - printk("Freeing unused kernel memory: %ldK freed\n", - (end - start) / 1024); - - for (addr = start; addr < end; addr += PAGE_SIZE) { - struct page *page = virt_to_page (addr); - ClearPageReserved (page); - init_page_count (page); - __free_page (page); - total_ram_pages++; - } - } -} - - -/* Initialize the `bootmem allocator'. RAM_START and RAM_LEN identify - what RAM may be used. */ -static void __init -init_bootmem_alloc (unsigned long ram_start, unsigned long ram_len) -{ - /* The part of the kernel that's in the same managed RAM space - used for general allocation. */ - unsigned long kram_start = (unsigned long)&_kram_start; - unsigned long kram_end = (unsigned long)&_kram_end; - /* End of the managed RAM space. */ - unsigned long ram_end = ram_start + ram_len; - /* Address range of the interrupt vector table. */ - unsigned long intv_start = (unsigned long)&_intv_start; - unsigned long intv_end = (unsigned long)&_intv_end; - /* True if the interrupt vectors are in the managed RAM area. */ - int intv_in_ram = (intv_end > ram_start && intv_start < ram_end); - /* True if the interrupt vectors are inside the kernel's RAM. */ - int intv_in_kram = (intv_end > kram_start && intv_start < kram_end); - /* A pointer to an optional function that reserves platform-specific - memory regions. We declare the pointer `volatile' to avoid gcc - turning the call into a static call (the problem is that since - it's a weak symbol, a static call may end up trying to reference - the location 0x0, which is not always reachable). */ - void (*volatile mrb) (void) = mach_reserve_bootmem; - /* The bootmem allocator's allocation bitmap. */ - unsigned long bootmap = (unsigned long)&_bootmap; - unsigned long bootmap_len; - - /* Round bootmap location up to next page. */ - bootmap = PAGE_TO_ADDR (ADDR_TO_PAGE_UP (bootmap)); - - /* Initialize bootmem allocator. */ - bootmap_len = init_bootmem_node (NODE_DATA (0), - ADDR_TO_PAGE (bootmap), - ADDR_TO_PAGE (PAGE_OFFSET), - ADDR_TO_PAGE (ram_end)); - - /* Now make the RAM actually allocatable (it starts out `reserved'). */ - free_bootmem (ram_start, ram_len); - - if (kram_end > kram_start) - /* Reserve the RAM part of the kernel's address space, so it - doesn't get allocated. */ - reserve_bootmem(kram_start, kram_end - kram_start, - BOOTMEM_DEFAULT); - - if (intv_in_ram && !intv_in_kram) - /* Reserve the interrupt vector space. */ - reserve_bootmem(intv_start, intv_end - intv_start, - BOOTMEM_DEFAULT); - - if (bootmap >= ram_start && bootmap < ram_end) - /* Reserve the bootmap space. */ - reserve_bootmem(bootmap, bootmap_len, - BOOTMEM_DEFAULT); - - /* Reserve the memory used by the root filesystem image if it's - in RAM. */ - if (&_root_fs_image_end > &_root_fs_image_start - && (unsigned long)&_root_fs_image_start >= ram_start - && (unsigned long)&_root_fs_image_start < ram_end) - reserve_bootmem ((unsigned long)&_root_fs_image_start, - &_root_fs_image_end - &_root_fs_image_start, - BOOTMEM_DEFAULT); - - /* Let the platform-dependent code reserve some too. */ - if (mrb) - (*mrb) (); -} - -/* Tell the kernel about what RAM it may use for memory allocation. */ -static void __init -init_mem_alloc (unsigned long ram_start, unsigned long ram_len) -{ - unsigned i; - unsigned long zones_size[MAX_NR_ZONES]; - - init_bootmem_alloc (ram_start, ram_len); - - for (i = 0; i < MAX_NR_ZONES; i++) - zones_size[i] = 0; - - /* We stuff all the memory into one area, which includes the - initial gap from PAGE_OFFSET to ram_start. */ - zones_size[ZONE_DMA] - = ADDR_TO_PAGE (ram_len + (ram_start - PAGE_OFFSET)); - - /* The allocator is very picky about the address of the first - allocatable page -- it must be at least as aligned as the - maximum allocation -- so try to detect cases where it will get - confused and signal them at compile time (this is a common - problem when porting to a new platform with ). There is a - similar runtime check in free_area_init_core. */ -#if ((PAGE_OFFSET >> PAGE_SHIFT) & ((1UL << (MAX_ORDER - 1)) - 1)) -#error MAX_ORDER is too large for given PAGE_OFFSET (use CONFIG_FORCE_MAX_ZONEORDER to change it) -#endif - NODE_DATA(0)->node_mem_map = NULL; - free_area_init_node(0, zones_size, ADDR_TO_PAGE (PAGE_OFFSET), 0); -} - - - -/* Taken from m68knommu */ -void show_mem(void) -{ - unsigned long i; - int free = 0, total = 0, reserved = 0, shared = 0; - int cached = 0; - - printk(KERN_INFO "\nMem-info:\n"); - show_free_areas(); - i = max_mapnr; - while (i-- > 0) { - total++; - if (PageReserved(mem_map+i)) - reserved++; - else if (PageSwapCache(mem_map+i)) - cached++; - else if (!page_count(mem_map+i)) - free++; - else - shared += page_count(mem_map+i) - 1; - } - printk(KERN_INFO "%d pages of RAM\n",total); - printk(KERN_INFO "%d free pages\n",free); - printk(KERN_INFO "%d reserved pages\n",reserved); - printk(KERN_INFO "%d pages shared\n",shared); - printk(KERN_INFO "%d pages swap cached\n",cached); -} diff --git a/arch/v850/kernel/signal.c b/arch/v850/kernel/signal.c deleted file mode 100644 index bf166e7e762c..000000000000 --- a/arch/v850/kernel/signal.c +++ /dev/null @@ -1,523 +0,0 @@ -/* - * arch/v850/kernel/signal.c -- Signal handling - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * Copyright (C) 1999,2000,2002 Niibe Yutaka & Kaz Kojima - * Copyright (C) 1991,1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * 1997-11-28 Modified for POSIX.1b signals by Richard Henderson - * - * This file was derived from the sh version, arch/sh/kernel/signal.c - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#define DEBUG_SIG 0 - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset); - -/* - * Atomically swap in the new signal mask, and wait for a signal. - */ -asmlinkage int -sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs) -{ - sigset_t saveset; - - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - regs->gpr[GPR_RVAL] = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(regs, &saveset)) - return -EINTR; - } -} - -asmlinkage int -sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize, - struct pt_regs *regs) -{ - sigset_t saveset, newset; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - - if (copy_from_user(&newset, unewset, sizeof(newset))) - return -EFAULT; - sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - regs->gpr[GPR_RVAL] = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(regs, &saveset)) - return -EINTR; - } -} - -asmlinkage int -sys_sigaction(int sig, const struct old_sigaction *act, - struct old_sigaction *oact) -{ - struct k_sigaction new_ka, old_ka; - int ret; - - if (act) { - old_sigset_t mask; - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || - __get_user(new_ka.sa.sa_handler, &act->sa_handler) || - __get_user(new_ka.sa.sa_restorer, &act->sa_restorer)) - return -EFAULT; - __get_user(new_ka.sa.sa_flags, &act->sa_flags); - __get_user(mask, &act->sa_mask); - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || - __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || - __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer)) - return -EFAULT; - __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); - } - - return ret; -} - -asmlinkage int -sys_sigaltstack(const stack_t *uss, stack_t *uoss, - struct pt_regs *regs) -{ - return do_sigaltstack(uss, uoss, regs->gpr[GPR_SP]); -} - - -/* - * Do a signal return; undo the signal stack. - */ - -struct sigframe -{ - struct sigcontext sc; - unsigned long extramask[_NSIG_WORDS-1]; - unsigned long tramp[2]; /* signal trampoline */ -}; - -struct rt_sigframe -{ - struct siginfo info; - struct ucontext uc; - unsigned long tramp[2]; /* signal trampoline */ -}; - -static int -restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *rval_p) -{ - unsigned int err = 0; - -#define COPY(x) err |= __get_user(regs->x, &sc->regs.x) - COPY(gpr[0]); COPY(gpr[1]); COPY(gpr[2]); COPY(gpr[3]); - COPY(gpr[4]); COPY(gpr[5]); COPY(gpr[6]); COPY(gpr[7]); - COPY(gpr[8]); COPY(gpr[9]); COPY(gpr[10]); COPY(gpr[11]); - COPY(gpr[12]); COPY(gpr[13]); COPY(gpr[14]); COPY(gpr[15]); - COPY(gpr[16]); COPY(gpr[17]); COPY(gpr[18]); COPY(gpr[19]); - COPY(gpr[20]); COPY(gpr[21]); COPY(gpr[22]); COPY(gpr[23]); - COPY(gpr[24]); COPY(gpr[25]); COPY(gpr[26]); COPY(gpr[27]); - COPY(gpr[28]); COPY(gpr[29]); COPY(gpr[30]); COPY(gpr[31]); - COPY(pc); COPY(psw); - COPY(ctpc); COPY(ctpsw); COPY(ctbp); -#undef COPY - - return err; -} - -asmlinkage int sys_sigreturn(struct pt_regs *regs) -{ - struct sigframe *frame = (struct sigframe *)regs->gpr[GPR_SP]; - sigset_t set; - int rval; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - - if (__get_user(set.sig[0], &frame->sc.oldmask) - || (_NSIG_WORDS > 1 - && __copy_from_user(&set.sig[1], &frame->extramask, - sizeof(frame->extramask)))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext(regs, &frame->sc, &rval)) - goto badframe; - return rval; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -asmlinkage int sys_rt_sigreturn(struct pt_regs *regs) -{ - struct rt_sigframe *frame = (struct rt_sigframe *)regs->gpr[GPR_SP]; - sigset_t set; - stack_t st; - int rval; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval)) - goto badframe; - - if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st))) - goto badframe; - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - do_sigaltstack(&st, NULL, regs->gpr[GPR_SP]); - - return rval; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -/* - * Set up a signal frame. - */ - -static int -setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, - unsigned long mask) -{ - int err = 0; - -#define COPY(x) err |= __put_user(regs->x, &sc->regs.x) - COPY(gpr[0]); COPY(gpr[1]); COPY(gpr[2]); COPY(gpr[3]); - COPY(gpr[4]); COPY(gpr[5]); COPY(gpr[6]); COPY(gpr[7]); - COPY(gpr[8]); COPY(gpr[9]); COPY(gpr[10]); COPY(gpr[11]); - COPY(gpr[12]); COPY(gpr[13]); COPY(gpr[14]); COPY(gpr[15]); - COPY(gpr[16]); COPY(gpr[17]); COPY(gpr[18]); COPY(gpr[19]); - COPY(gpr[20]); COPY(gpr[21]); COPY(gpr[22]); COPY(gpr[23]); - COPY(gpr[24]); COPY(gpr[25]); COPY(gpr[26]); COPY(gpr[27]); - COPY(gpr[28]); COPY(gpr[29]); COPY(gpr[30]); COPY(gpr[31]); - COPY(pc); COPY(psw); - COPY(ctpc); COPY(ctpsw); COPY(ctbp); -#undef COPY - - err |= __put_user(mask, &sc->oldmask); - - return err; -} - -/* - * Determine which stack to use.. - */ -static inline void * -get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) -{ - /* Default to using normal stack */ - unsigned long sp = regs->gpr[GPR_SP]; - - if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp)) - sp = current->sas_ss_sp + current->sas_ss_size; - - return (void *)((sp - frame_size) & -8UL); -} - -static void setup_frame(int sig, struct k_sigaction *ka, - sigset_t *set, struct pt_regs *regs) -{ - struct sigframe *frame; - int err = 0; - int signal; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; - - signal = current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig; - - err |= setup_sigcontext(&frame->sc, regs, set->sig[0]); - - if (_NSIG_WORDS > 1) { - err |= __copy_to_user(frame->extramask, &set->sig[1], - sizeof(frame->extramask)); - } - - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - if (ka->sa.sa_flags & SA_RESTORER) { - regs->gpr[GPR_LP] = (unsigned long) ka->sa.sa_restorer; - } else { - /* Note, these encodings are _little endian_! */ - - /* addi __NR_sigreturn, r0, r12 */ - err |= __put_user(0x6600 | (__NR_sigreturn << 16), - frame->tramp + 0); - /* trap 0 */ - err |= __put_user(0x010007e0, - frame->tramp + 1); - - regs->gpr[GPR_LP] = (unsigned long)frame->tramp; - - flush_cache_sigtramp (regs->gpr[GPR_LP]); - } - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler. */ - regs->pc = (v850_reg_t) ka->sa.sa_handler; - regs->gpr[GPR_SP] = (v850_reg_t)frame; - /* Signal handler args: */ - regs->gpr[GPR_ARG0] = signal; /* arg 0: signum */ - regs->gpr[GPR_ARG1] = (v850_reg_t)&frame->sc;/* arg 1: sigcontext */ - - set_fs(USER_DS); - -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=%p pc=%08lx ra=%08lx\n", - current->comm, current->pid, frame, regs->pc, ); -#endif - - return; - -give_sigsegv: - force_sigsegv(sig, current); -} - -static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs) -{ - struct rt_sigframe *frame; - int err = 0; - int signal; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; - - signal = current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig; - - err |= copy_siginfo_to_user(&frame->info, info); - - /* Create the ucontext. */ - err |= __put_user(0, &frame->uc.uc_flags); - err |= __put_user(0, &frame->uc.uc_link); - err |= __put_user((void *)current->sas_ss_sp, - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->gpr[GPR_SP]), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= setup_sigcontext(&frame->uc.uc_mcontext, - regs, set->sig[0]); - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - if (ka->sa.sa_flags & SA_RESTORER) { - regs->gpr[GPR_LP] = (unsigned long) ka->sa.sa_restorer; - } else { - /* Note, these encodings are _little endian_! */ - - /* addi __NR_sigreturn, r0, r12 */ - err |= __put_user(0x6600 | (__NR_sigreturn << 16), - frame->tramp + 0); - /* trap 0 */ - err |= __put_user(0x010007e0, - frame->tramp + 1); - - regs->gpr[GPR_LP] = (unsigned long)frame->tramp; - - flush_cache_sigtramp (regs->gpr[GPR_LP]); - } - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler. */ - regs->pc = (v850_reg_t) ka->sa.sa_handler; - regs->gpr[GPR_SP] = (v850_reg_t)frame; - /* Signal handler args: */ - regs->gpr[GPR_ARG0] = signal; /* arg 0: signum */ - regs->gpr[GPR_ARG1] = (v850_reg_t)&frame->info; /* arg 1: siginfo */ - regs->gpr[GPR_ARG2] = (v850_reg_t)&frame->uc; /* arg 2: ucontext */ - - set_fs(USER_DS); - -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", - current->comm, current->pid, frame, regs->pc, regs->pr); -#endif - - return; - -give_sigsegv: - force_sigsegv(sig, current); -} - -/* - * OK, we're invoking a handler - */ - -static void -handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, - sigset_t *oldset, struct pt_regs * regs) -{ - /* Are we from a system call? */ - if (PT_REGS_SYSCALL (regs)) { - /* If so, check system call restarting.. */ - switch (regs->gpr[GPR_RVAL]) { - case -ERESTART_RESTARTBLOCK: - current_thread_info()->restart_block.fn = - do_no_restart_syscall; - /* fall through */ - case -ERESTARTNOHAND: - regs->gpr[GPR_RVAL] = -EINTR; - break; - - case -ERESTARTSYS: - if (!(ka->sa.sa_flags & SA_RESTART)) { - regs->gpr[GPR_RVAL] = -EINTR; - break; - } - /* fallthrough */ - case -ERESTARTNOINTR: - regs->gpr[12] = PT_REGS_SYSCALL (regs); - regs->pc -= 4; /* Size of `trap 0' insn. */ - } - - PT_REGS_SET_SYSCALL (regs, 0); - } - - /* Set up the stack frame */ - if (ka->sa.sa_flags & SA_SIGINFO) - setup_rt_frame(sig, ka, info, oldset, regs); - else - setup_frame(sig, ka, oldset, regs); - - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); -} - -/* - * Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - * - * Note that we go through the signals twice: once to check the signals that - * the kernel can handle, and then we build all the user-level signal handling - * stack-frames in one go after that. - */ -int do_signal(struct pt_regs *regs, sigset_t *oldset) -{ - siginfo_t info; - int signr; - struct k_sigaction ka; - - /* - * We want the common case to go fast, which - * is why we may in certain cases get here from - * kernel mode. Just return without doing anything - * if so. - */ - if (!user_mode(regs)) - return 1; - - if (!oldset) - oldset = ¤t->blocked; - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { - /* Whee! Actually deliver the signal. */ - handle_signal(signr, &info, &ka, oldset, regs); - return 1; - } - - /* Did we come from a system call? */ - if (PT_REGS_SYSCALL (regs)) { - int rval = (int)regs->gpr[GPR_RVAL]; - /* Restart the system call - no handlers present */ - if (rval == -ERESTARTNOHAND - || rval == -ERESTARTSYS - || rval == -ERESTARTNOINTR) - { - regs->gpr[12] = PT_REGS_SYSCALL (regs); - regs->pc -= 4; /* Size of `trap 0' insn. */ - } - else if (rval == -ERESTART_RESTARTBLOCK) { - regs->gpr[12] = __NR_restart_syscall; - regs->pc -= 4; /* Size of `trap 0' insn. */ - } - } - return 0; -} diff --git a/arch/v850/kernel/sim.c b/arch/v850/kernel/sim.c deleted file mode 100644 index 467b4aa0acdd..000000000000 --- a/arch/v850/kernel/sim.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * arch/v850/kernel/sim.c -- Machine-specific stuff for GDB v850e simulator - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "mach.h" - -/* The name of a file containing the root filesystem. */ -#define ROOT_FS "rootfs.image" - -extern void simcons_setup (void); -extern void simcons_poll_ttys (void); -extern void set_mem_root (void *addr, size_t len, char *cmd_line); - -static int read_file (const char *name, - unsigned long *addr, unsigned long *len, - const char **err); - -void __init mach_setup (char **cmdline) -{ - const char *err; - unsigned long root_dev_addr, root_dev_len; - - simcons_setup (); - - printk (KERN_INFO "Reading root filesystem: %s", ROOT_FS); - - if (read_file (ROOT_FS, &root_dev_addr, &root_dev_len, &err)) { - printk (" (size %luK)\n", root_dev_len / 1024); - set_mem_root ((void *)root_dev_addr, (size_t)root_dev_len, - *cmdline); - } else - printk ("...%s failed!\n", err); -} - -void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len) -{ - *ram_start = RAM_ADDR; - *ram_len = RAM_SIZE; -} - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* ...do magic timer initialization?... */ - mach_tick = simcons_poll_ttys; - setup_irq (0, timer_action); -} - - -static void irq_nop (unsigned irq) { } -static unsigned irq_zero (unsigned irq) { return 0; } - -static struct hw_interrupt_type sim_irq_type = { - .typename = "IRQ", - .startup = irq_zero, /* startup */ - .shutdown = irq_nop, /* shutdown */ - .enable = irq_nop, /* enable */ - .disable = irq_nop, /* disable */ - .ack = irq_nop, /* ack */ - .end = irq_nop, /* end */ -}; - -void __init mach_init_irqs (void) -{ - init_irq_handlers (0, NUM_MACH_IRQS, 1, &sim_irq_type); -} - - -void mach_gettimeofday (struct timespec *tv) -{ - long timeval[2], timezone[2]; - int rval = V850_SIM_SYSCALL (gettimeofday, timeval, timezone); - if (rval == 0) { - tv->tv_sec = timeval[0]; - tv->tv_nsec = timeval[1] * 1000; - } -} - -void machine_restart (char *__unused) -{ - V850_SIM_SYSCALL (write, 1, "RESTART\n", 8); - V850_SIM_SYSCALL (exit, 0); -} - -void machine_halt (void) -{ - V850_SIM_SYSCALL (write, 1, "HALT\n", 5); - V850_SIM_SYSCALL (exit, 0); -} - -void machine_power_off (void) -{ - V850_SIM_SYSCALL (write, 1, "POWER OFF\n", 10); - V850_SIM_SYSCALL (exit, 0); -} - - -/* Load data from a file called NAME into ram. The address and length - of the data image are returned in ADDR and LEN. */ -static int __init -read_file (const char *name, - unsigned long *addr, unsigned long *len, - const char **err) -{ - int rval, fd; - unsigned long cur, left; - /* Note this is not a normal stat buffer, it's an ad-hoc - structure defined by the simulator. */ - unsigned long stat_buf[10]; - - /* Stat the file to find out the length. */ - rval = V850_SIM_SYSCALL (stat, name, stat_buf); - if (rval < 0) { - if (err) *err = "stat"; - return 0; - } - *len = stat_buf[4]; - - /* Open the file; `0' is O_RDONLY. */ - fd = V850_SIM_SYSCALL (open, name, 0); - if (fd < 0) { - if (err) *err = "open"; - return 0; - } - - *addr = (unsigned long)alloc_bootmem(*len); - if (! *addr) { - V850_SIM_SYSCALL (close, fd); - if (err) *err = "alloc_bootmem"; - return 0; - } - - cur = *addr; - left = *len; - while (left > 0) { - int chunk = V850_SIM_SYSCALL (read, fd, cur, left); - if (chunk <= 0) - break; - cur += chunk; - left -= chunk; - } - V850_SIM_SYSCALL (close, fd); - if (left > 0) { - /* Some read failed. */ - free_bootmem (*addr, *len); - if (err) *err = "read"; - return 0; - } - - return 1; -} diff --git a/arch/v850/kernel/sim.ld b/arch/v850/kernel/sim.ld deleted file mode 100644 index 101885f3c9f0..000000000000 --- a/arch/v850/kernel/sim.ld +++ /dev/null @@ -1,13 +0,0 @@ -/* Linker script for the gdb v850e simulator (CONFIG_V850E_SIM). */ - -MEMORY { - /* Interrupt vectors. */ - INTV : ORIGIN = 0x0, LENGTH = 0xe0 - /* Main RAM. */ - RAM : ORIGIN = RAM_ADDR, LENGTH = RAM_SIZE -} - -SECTIONS { - .intv : { INTV_CONTENTS } > INTV - .ram : { RAMK_KRAM_CONTENTS } > RAM -} diff --git a/arch/v850/kernel/sim85e2.c b/arch/v850/kernel/sim85e2.c deleted file mode 100644 index 566dde5e6070..000000000000 --- a/arch/v850/kernel/sim85e2.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * arch/v850/kernel/sim85e2.c -- Machine-specific stuff for - * V850E2 RTL simulator - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "mach.h" - - -/* There are 4 possible areas we can use: - - IRAM (1MB) is fast for instruction fetches, but slow for data - DRAM (1020KB) is fast for data, but slow for instructions - ERAM is cached, so should be fast for both insns and data - SDRAM is external DRAM, similar to ERAM -*/ - -#define INIT_MEMC_FOR_SDRAM -#define USE_SDRAM_AREA -#define KERNEL_IN_SDRAM_AREA - -#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WT -/*#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WB_ALLOC*/ - -#ifdef USE_SDRAM_AREA -#define RAM_START SDRAM_ADDR -#define RAM_END (SDRAM_ADDR + SDRAM_SIZE) -#else -/* When we use DRAM, we need to account for the fact that the end of it is - used for R0_RAM. */ -#define RAM_START DRAM_ADDR -#define RAM_END R0_RAM_ADDR -#endif - - -extern void memcons_setup (void); - - -#ifdef KERNEL_IN_SDRAM_AREA -#define EARLY_INIT_SECTION_ATTR __attribute__ ((section (".early.text"))) -#else -#define EARLY_INIT_SECTION_ATTR __init -#endif - -void EARLY_INIT_SECTION_ATTR mach_early_init (void) -{ - /* The sim85e2 simulator tracks `undefined' values, so to make - debugging easier, we begin by zeroing out all otherwise - undefined registers. This is not strictly necessary. - - The registers we zero are: - Every GPR except: - stack-pointer (r3) - task-pointer (r16) - our return addr (r31) - Every system register (SPR) that we know about except for - the PSW (SPR 5), which we zero except for the - disable-interrupts bit. - */ - - /* GPRs */ - asm volatile (" mov r0, r1 ; mov r0, r2 "); - asm volatile ("mov r0, r4 ; mov r0, r5 ; mov r0, r6 ; mov r0, r7 "); - asm volatile ("mov r0, r8 ; mov r0, r9 ; mov r0, r10; mov r0, r11"); - asm volatile ("mov r0, r12; mov r0, r13; mov r0, r14; mov r0, r15"); - asm volatile (" mov r0, r17; mov r0, r18; mov r0, r19"); - asm volatile ("mov r0, r20; mov r0, r21; mov r0, r22; mov r0, r23"); - asm volatile ("mov r0, r24; mov r0, r25; mov r0, r26; mov r0, r27"); - asm volatile ("mov r0, r28; mov r0, r29; mov r0, r30"); - - /* SPRs */ - asm volatile ("ldsr r0, 0; ldsr r0, 1; ldsr r0, 2; ldsr r0, 3"); - asm volatile ("ldsr r0, 4"); - asm volatile ("addi 0x20, r0, r1; ldsr r1, 5"); /* PSW */ - asm volatile ("ldsr r0, 16; ldsr r0, 17; ldsr r0, 18; ldsr r0, 19"); - asm volatile ("ldsr r0, 20"); - - -#ifdef INIT_MEMC_FOR_SDRAM - /* Settings for SDRAM controller. */ - V850E2_VSWC = 0x0042; - V850E2_BSC = 0x9286; - V850E2_BCT(0) = 0xb000; /* was: 0 */ - V850E2_BCT(1) = 0x000b; - V850E2_ASC = 0; - V850E2_LBS = 0xa9aa; /* was: 0xaaaa */ - V850E2_LBC(0) = 0; - V850E2_LBC(1) = 0; /* was: 0x3 */ - V850E2_BCC = 0; - V850E2_RFS(4) = 0x800a; /* was: 0xf109 */ - V850E2_SCR(4) = 0x2091; /* was: 0x20a1 */ - V850E2_RFS(3) = 0x800c; - V850E2_SCR(3) = 0x20a1; - V850E2_DWC(0) = 0; - V850E2_DWC(1) = 0; -#endif - -#if 0 -#ifdef CONFIG_V850E2_SIM85E2S - /* Turn on the caches. */ - V850E2_CACHE_BTSC = V850E2_CACHE_BTSC_ICM | DCACHE_MODE; - V850E2_BHC = 0x1010; -#elif CONFIG_V850E2_SIM85E2C - V850E2_CACHE_BTSC |= (V850E2_CACHE_BTSC_ICM | V850E2_CACHE_BTSC_DCM0); - V850E2_BUSM_BHC = 0xFFFF; -#endif -#else - V850E2_BHC = 0; -#endif - - /* Don't stop the simulator at `halt' instructions. */ - SIM85E2_NOTHAL = 1; - - /* Ensure that the simulator halts on a panic, instead of going - into an infinite loop inside the panic function. */ - panic_timeout = -1; -} - -void __init mach_setup (char **cmdline) -{ - memcons_setup (); -} - -void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len) -{ - *ram_start = RAM_START; - *ram_len = RAM_END - RAM_START; -} - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* The simulator actually cycles through all interrupts - periodically. We just pay attention to IRQ0, which gives us - 1/64 the rate of the periodic interrupts. */ - setup_irq (0, timer_action); -} - -void mach_gettimeofday (struct timespec *tv) -{ - tv->tv_sec = 0; - tv->tv_nsec = 0; -} - -/* Interrupts */ - -struct v850e_intc_irq_init irq_inits[] = { - { "IRQ", 0, NUM_MACH_IRQS, 1, 7 }, - { 0 } -}; -struct hw_interrupt_type hw_itypes[1]; - -/* Initialize interrupts. */ -void __init mach_init_irqs (void) -{ - v850e_intc_init_irq_types (irq_inits, hw_itypes); -} - - -void machine_halt (void) __attribute__ ((noreturn)); -void machine_halt (void) -{ - SIM85E2_SIMFIN = 0; /* Halt immediately. */ - for (;;) {} -} - -void machine_restart (char *__unused) -{ - machine_halt (); -} - -void machine_power_off (void) -{ - machine_halt (); -} - diff --git a/arch/v850/kernel/sim85e2.ld b/arch/v850/kernel/sim85e2.ld deleted file mode 100644 index 7470fd2ffb5b..000000000000 --- a/arch/v850/kernel/sim85e2.ld +++ /dev/null @@ -1,36 +0,0 @@ -/* Linker script for the sim85e2c simulator, which is a verilog simulation of - the V850E2 NA85E2C cpu core (CONFIG_V850E2_SIM85E2C). */ - -MEMORY { - /* 1MB of `instruction RAM', starting at 0. - Instruction fetches are much faster from IRAM than from DRAM. */ - IRAM : ORIGIN = IRAM_ADDR, LENGTH = IRAM_SIZE - - /* 1MB of `data RAM', below and contiguous with the I/O space. - Data fetches are much faster from DRAM than from IRAM. */ - DRAM : ORIGIN = DRAM_ADDR, LENGTH = DRAM_SIZE - - /* `external ram' (CS1 area), comes after IRAM. */ - ERAM : ORIGIN = ERAM_ADDR, LENGTH = ERAM_SIZE - - /* Dynamic RAM; uses memory controller. */ - SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE -} - -SECTIONS { - .iram : { - INTV_CONTENTS - *arch/v850/kernel/head.o - *(.early.text) - } > IRAM - .dram : { - _memcons_output = . ; - . = . + 0x8000 ; - _memcons_output_end = . ; - } > DRAM - .sdram : { - /* We stick console output into a buffer here. */ - RAMK_KRAM_CONTENTS - ROOT_FS_CONTENTS - } > SDRAM -} diff --git a/arch/v850/kernel/simcons.c b/arch/v850/kernel/simcons.c deleted file mode 100644 index 9973596ae304..000000000000 --- a/arch/v850/kernel/simcons.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * arch/v850/kernel/simcons.c -- Console I/O for GDB v850e simulator - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include - - -/* Low-level console. */ - -static void simcons_write (struct console *co, const char *buf, unsigned len) -{ - V850_SIM_SYSCALL (write, 1, buf, len); -} - -static int simcons_read (struct console *co, char *buf, unsigned len) -{ - return V850_SIM_SYSCALL (read, 0, buf, len); -} - -static struct tty_driver *tty_driver; -static struct tty_driver *simcons_device (struct console *c, int *index) -{ - *index = c->index; - return tty_driver; -} - -static struct console simcons = -{ - .name = "simcons", - .write = simcons_write, - .read = simcons_read, - .device = simcons_device, - .flags = CON_PRINTBUFFER, - .index = -1, -}; - -/* Higher level TTY interface. */ - -int simcons_tty_open (struct tty_struct *tty, struct file *filp) -{ - return 0; -} - -int simcons_tty_write (struct tty_struct *tty, - const unsigned char *buf, int count) -{ - return V850_SIM_SYSCALL (write, 1, buf, count); -} - -int simcons_tty_write_room (struct tty_struct *tty) -{ - /* Completely arbitrary. */ - return 0x100000; -} - -int simcons_tty_chars_in_buffer (struct tty_struct *tty) -{ - /* We have no buffer. */ - return 0; -} - -static const struct tty_operations ops = { - .open = simcons_tty_open, - .write = simcons_tty_write, - .write_room = simcons_tty_write_room, - .chars_in_buffer = simcons_tty_chars_in_buffer, -}; - -int __init simcons_tty_init (void) -{ - struct tty_driver *driver = alloc_tty_driver(1); - int err; - if (!driver) - return -ENOMEM; - driver->name = "simcons"; - driver->major = TTY_MAJOR; - driver->minor_start = 64; - driver->type = TTY_DRIVER_TYPE_SYSCONS; - driver->init_termios = tty_std_termios; - tty_set_operations(driver, &ops); - err = tty_register_driver(driver); - if (err) { - put_tty_driver(driver); - return err; - } - tty_driver = driver; - return 0; -} -/* We use `late_initcall' instead of just `__initcall' as a workaround for - the fact that (1) simcons_tty_init can't be called before tty_init, - (2) tty_init is called via `module_init', (3) if statically linked, - module_init == device_init, and (4) there's no ordering of init lists. - We can do this easily because simcons is always statically linked, but - other tty drivers that depend on tty_init and which must use - `module_init' to declare their init routines are likely to be broken. */ -late_initcall(simcons_tty_init); - -/* Poll for input on the console, and if there's any, deliver it to the - tty driver. */ -void simcons_poll_tty (struct tty_struct *tty) -{ - char buf[32]; /* Not the nicest way to do it but I need it correct first */ - int flip = 0, send_break = 0; - struct pollfd pfd; - pfd.fd = 0; - pfd.events = POLLIN; - - if (V850_SIM_SYSCALL (poll, &pfd, 1, 0) > 0) { - if (pfd.revents & POLLIN) { - /* Real block hardware knows the transfer size before - transfer so the new tty buffering doesn't try to handle - this rather weird simulator specific case well */ - int rd = V850_SIM_SYSCALL (read, 0, buf, 32); - if (rd > 0) { - tty_insert_flip_string(tty, buf, rd); - flip = 1; - } else - send_break = 1; - } else if (pfd.revents & POLLERR) - send_break = 1; - } - - if (send_break) { - tty_insert_flip_char (tty, 0, TTY_BREAK); - flip = 1; - } - - if (flip) - tty_schedule_flip (tty); -} - -void simcons_poll_ttys (void) -{ - if (tty_driver && tty_driver->ttys[0]) - simcons_poll_tty (tty_driver->ttys[0]); -} - -void simcons_setup (void) -{ - V850_SIM_SYSCALL (make_raw, 0); - register_console (&simcons); - printk (KERN_INFO "Console: GDB V850E simulator stdio\n"); -} diff --git a/arch/v850/kernel/syscalls.c b/arch/v850/kernel/syscalls.c deleted file mode 100644 index 1a83daf8e24f..000000000000 --- a/arch/v850/kernel/syscalls.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * arch/v850/kernel/syscalls.c -- Various system-call definitions not - * defined in machine-independent code - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * This file was derived the ppc version, arch/ppc/kernel/syscalls.c - * ... which was derived from "arch/i386/kernel/sys_i386.c" by Gary Thomas; - * modified by Cort Dougan (cort@cs.nmt.edu) - * and Paul Mackerras (paulus@cs.anu.edu.au). - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -/* - * sys_ipc() is the de-multiplexer for the SysV IPC calls.. - * - * This is really horribly ugly. - */ -int -sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth) -{ - int version, ret; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - ret = -EINVAL; - switch (call) { - case SEMOP: - ret = sys_semop (first, (struct sembuf *)ptr, second); - break; - case SEMGET: - ret = sys_semget (first, second, third); - break; - case SEMCTL: - { - union semun fourth; - - if (!ptr) - break; - if ((ret = access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT) - || (ret = get_user(fourth.__pad, (void **)ptr))) - break; - ret = sys_semctl (first, second, third, fourth); - break; - } - case MSGSND: - ret = sys_msgsnd (first, (struct msgbuf *) ptr, second, third); - break; - case MSGRCV: - switch (version) { - case 0: { - struct ipc_kludge tmp; - - if (!ptr) - break; - if ((ret = access_ok(VERIFY_READ, ptr, sizeof(tmp)) ? 0 : -EFAULT) - || (ret = copy_from_user(&tmp, - (struct ipc_kludge *) ptr, - sizeof (tmp)))) - break; - ret = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp, - third); - break; - } - default: - ret = sys_msgrcv (first, (struct msgbuf *) ptr, - second, fifth, third); - break; - } - break; - case MSGGET: - ret = sys_msgget ((key_t) first, second); - break; - case MSGCTL: - ret = sys_msgctl (first, second, (struct msqid_ds *) ptr); - break; - case SHMAT: - switch (version) { - default: { - ulong raddr; - - if ((ret = access_ok(VERIFY_WRITE, (ulong*) third, - sizeof(ulong)) ? 0 : -EFAULT)) - break; - ret = do_shmat (first, (char *) ptr, second, &raddr); - if (ret) - break; - ret = put_user (raddr, (ulong *) third); - break; - } - case 1: /* iBCS2 emulator entry point */ - if (!segment_eq(get_fs(), get_ds())) - break; - ret = do_shmat (first, (char *) ptr, second, - (ulong *) third); - break; - } - break; - case SHMDT: - ret = sys_shmdt ((char *)ptr); - break; - case SHMGET: - ret = sys_shmget (first, second, third); - break; - case SHMCTL: - ret = sys_shmctl (first, second, (struct shmid_ds *) ptr); - break; - } - - return ret; -} - -static inline unsigned long -do_mmap2 (unsigned long addr, size_t len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - struct file * file = NULL; - int ret = -EBADF; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (! (flags & MAP_ANONYMOUS)) { - if (!(file = fget (fd))) - goto out; - } - - down_write (¤t->mm->mmap_sem); - ret = do_mmap_pgoff (file, addr, len, prot, flags, pgoff); - up_write (¤t->mm->mmap_sem); - if (file) - fput (file); -out: - return ret; -} - -unsigned long sys_mmap2 (unsigned long addr, size_t len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - return do_mmap2 (addr, len, prot, flags, fd, pgoff); -} - -unsigned long sys_mmap (unsigned long addr, size_t len, - unsigned long prot, unsigned long flags, - unsigned long fd, off_t offset) -{ - int err = -EINVAL; - - if (offset & ~PAGE_MASK) - goto out; - - err = do_mmap2 (addr, len, prot, flags, fd, offset >> PAGE_SHIFT); -out: - return err; -} - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, char *const argv[], char *const envp[]) -{ - register char *__a __asm__ ("r6") = filename; - register void *__b __asm__ ("r7") = argv; - register void *__c __asm__ ("r8") = envp; - register unsigned long __syscall __asm__ ("r12") = __NR_execve; - register unsigned long __ret __asm__ ("r10"); - __asm__ __volatile__ ("trap 0" - : "=r" (__ret), "=r" (__syscall) - : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c) - : "r1", "r5", "r11", "r13", "r14", - "r15", "r16", "r17", "r18", "r19"); - return __ret; -} diff --git a/arch/v850/kernel/teg.c b/arch/v850/kernel/teg.c deleted file mode 100644 index 699248f92aae..000000000000 --- a/arch/v850/kernel/teg.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * arch/v850/kernel/teg.c -- NB85E-TEG cpu chip - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "mach.h" - -void __init mach_sched_init (struct irqaction *timer_action) -{ - /* Select timer interrupt instead of external pin. */ - TEG_ISS |= 0x1; - /* Start hardware timer. */ - v850e_timer_d_configure (0, HZ); - /* Install timer interrupt handler. */ - setup_irq (IRQ_INTCMD(0), timer_action); -} - -static struct v850e_intc_irq_init irq_inits[] = { - { "IRQ", 0, NUM_CPU_IRQS, 1, 7 }, - { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 }, - { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 1, 3 }, - { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 1, 4 }, - { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 1, 5 }, - { 0 } -}; -#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1) - -static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; - -/* Initialize MA chip interrupts. */ -void __init teg_init_irqs (void) -{ - v850e_intc_init_irq_types (irq_inits, hw_itypes); -} - -/* Called before configuring an on-chip UART. */ -void teg_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) -{ - /* Enable UART I/O pins instead of external interrupt pins, and - UART interrupts instead of external pin interrupts. */ - TEG_ISS |= 0x4E; -} diff --git a/arch/v850/kernel/time.c b/arch/v850/kernel/time.c deleted file mode 100644 index d810c93fe665..000000000000 --- a/arch/v850/kernel/time.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * linux/arch/v850/kernel/time.c -- Arch-dependent timer functions - * - * Copyright (C) 1991, 1992, 1995, 2001, 2002 Linus Torvalds - * - * This file contains the v850-specific time handling details. - * Most of the stuff is located in the machine specific files. - * - * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include "mach.h" - -#define TICK_SIZE (tick_nsec / 1000) - -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "do_timer()" routine every clocktick - */ -static irqreturn_t timer_interrupt (int irq, void *dummy, struct pt_regs *regs) -{ -#if 0 - /* last time the cmos clock got updated */ - static long last_rtc_update=0; -#endif - - /* may need to kick the hardware timer */ - if (mach_tick) - mach_tick (); - - do_timer (1); -#ifndef CONFIG_SMP - update_process_times(user_mode(regs)); -#endif - profile_tick(CPU_PROFILING, regs); -#if 0 - /* - * If we have an externally synchronized Linux clock, then update - * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be - * called as close as possible to 500 ms before the new second starts. - */ - if (ntp_synced() && - xtime.tv_sec > last_rtc_update + 660 && - (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && - (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { - if (set_rtc_mmss (xtime.tv_sec) == 0) - last_rtc_update = xtime.tv_sec; - else - last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */ - } -#ifdef CONFIG_HEARTBEAT - /* use power LED as a heartbeat instead -- much more useful - for debugging -- based on the version for PReP by Cort */ - /* acts like an actual heart beat -- ie thump-thump-pause... */ - if (mach_heartbeat) { - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_heartbeat ( 1 ); - else if (cnt == 7 || cnt == dist+7) - mach_heartbeat ( 0 ); - - if (++cnt > period) { - cnt = 0; - /* The hyperbolic function below modifies the heartbeat period - * length in dependency of the current (5min) load. It goes - * through the points f(0)=126, f(1)=86, f(5)=51, - * f(inf)->30. */ - period = ((672< -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - - -extern void *trap_table; -EXPORT_SYMBOL (trap_table); - -/* platform dependent support */ -EXPORT_SYMBOL (kernel_thread); -EXPORT_SYMBOL (__bug); - -/* Networking helper routines. */ -EXPORT_SYMBOL (csum_partial_copy_nocheck); -EXPORT_SYMBOL (csum_partial_copy_from_user); -EXPORT_SYMBOL (ip_compute_csum); -EXPORT_SYMBOL (ip_fast_csum); - -/* string / mem functions */ -EXPORT_SYMBOL (memset); -EXPORT_SYMBOL (memcpy); -EXPORT_SYMBOL (memmove); - -/* - * libgcc functions - functions that are used internally by the - * compiler... (prototypes are not correct though, but that - * doesn't really matter since they're not versioned). - */ -extern void __ashldi3 (void); -extern void __ashrdi3 (void); -extern void __lshrdi3 (void); -extern void __muldi3 (void); -extern void __negdi2 (void); - -EXPORT_SYMBOL (__ashldi3); -EXPORT_SYMBOL (__ashrdi3); -EXPORT_SYMBOL (__lshrdi3); -EXPORT_SYMBOL (__muldi3); -EXPORT_SYMBOL (__negdi2); diff --git a/arch/v850/kernel/v850e2_cache.c b/arch/v850/kernel/v850e2_cache.c deleted file mode 100644 index 4570312c689c..000000000000 --- a/arch/v850/kernel/v850e2_cache.c +++ /dev/null @@ -1,127 +0,0 @@ -/* - * arch/v850/kernel/v850e2_cache.c -- Cache control for V850E2 cache - * memories - * - * Copyright (C) 2003 NEC Electronics Corporation - * Copyright (C) 2003 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include - -#include - -/* Cache operations we can do. The encoding corresponds directly to the - value we need to write into the COPR register. */ -enum cache_op { - OP_SYNC_IF_DIRTY = V850E2_CACHE_COPR_CFC(0), /* 000 */ - OP_SYNC_IF_VALID = V850E2_CACHE_COPR_CFC(1), /* 001 */ - OP_SYNC_IF_VALID_AND_CLEAR = V850E2_CACHE_COPR_CFC(3), /* 011 */ - OP_WAY_CLEAR = V850E2_CACHE_COPR_CFC(4), /* 100 */ - OP_FILL = V850E2_CACHE_COPR_CFC(5), /* 101 */ - OP_CLEAR = V850E2_CACHE_COPR_CFC(6), /* 110 */ - OP_CREATE_DIRTY = V850E2_CACHE_COPR_CFC(7) /* 111 */ -}; - -/* Which cache to use. This encoding also corresponds directly to the - value we need to write into the COPR register. */ -enum cache { - ICACHE = 0, - DCACHE = V850E2_CACHE_COPR_LBSL -}; - -/* Returns ADDR rounded down to the beginning of its cache-line. */ -#define CACHE_LINE_ADDR(addr) \ - ((addr) & ~(V850E2_CACHE_LINE_SIZE - 1)) -/* Returns END_ADDR rounded up to the `limit' of its cache-line. */ -#define CACHE_LINE_END_ADDR(end_addr) \ - CACHE_LINE_ADDR(end_addr + (V850E2_CACHE_LINE_SIZE - 1)) - - -/* Low-level cache ops. */ - -/* Apply cache-op OP to all entries in CACHE. */ -static inline void cache_op_all (enum cache_op op, enum cache cache) -{ - int cmd = op | cache | V850E2_CACHE_COPR_WSLE | V850E2_CACHE_COPR_STRT; - - if (op != OP_WAY_CLEAR) { - /* The WAY_CLEAR operation does the whole way, but other - ops take begin-index and count params; we just indicate - the entire cache. */ - V850E2_CACHE_CADL = 0; - V850E2_CACHE_CADH = 0; - V850E2_CACHE_CCNT = V850E2_CACHE_WAY_SIZE - 1; - } - - V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(0); /* way 0 */ - V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(1); /* way 1 */ - V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(2); /* way 2 */ - V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(3); /* way 3 */ -} - -/* Apply cache-op OP to all entries in CACHE covering addresses ADDR - through ADDR+LEN. */ -static inline void cache_op_range (enum cache_op op, u32 addr, u32 len, - enum cache cache) -{ - u32 start = CACHE_LINE_ADDR (addr); - u32 end = CACHE_LINE_END_ADDR (addr + len); - u32 num_lines = (end - start) >> V850E2_CACHE_LINE_SIZE_BITS; - - V850E2_CACHE_CADL = start & 0xFFFF; - V850E2_CACHE_CADH = start >> 16; - V850E2_CACHE_CCNT = num_lines - 1; - - V850E2_CACHE_COPR = op | cache | V850E2_CACHE_COPR_STRT; -} - - -/* High-level ops. */ - -static void cache_exec_after_store_all (void) -{ - cache_op_all (OP_SYNC_IF_DIRTY, DCACHE); - cache_op_all (OP_WAY_CLEAR, ICACHE); -} - -static void cache_exec_after_store_range (u32 start, u32 len) -{ - cache_op_range (OP_SYNC_IF_DIRTY, start, len, DCACHE); - cache_op_range (OP_CLEAR, start, len, ICACHE); -} - - -/* Exported functions. */ - -void flush_icache (void) -{ - cache_exec_after_store_all (); -} - -void flush_icache_range (unsigned long start, unsigned long end) -{ - cache_exec_after_store_range (start, end - start); -} - -void flush_icache_page (struct vm_area_struct *vma, struct page *page) -{ - cache_exec_after_store_range (page_to_virt (page), PAGE_SIZE); -} - -void flush_icache_user_range (struct vm_area_struct *vma, struct page *page, - unsigned long addr, int len) -{ - cache_exec_after_store_range (addr, len); -} - -void flush_cache_sigtramp (unsigned long addr) -{ - /* For the exact size, see signal.c, but 16 bytes should be enough. */ - cache_exec_after_store_range (addr, 16); -} diff --git a/arch/v850/kernel/v850e_cache.c b/arch/v850/kernel/v850e_cache.c deleted file mode 100644 index ea3e51cfb259..000000000000 --- a/arch/v850/kernel/v850e_cache.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * arch/v850/kernel/v850e_cache.c -- Cache control for V850E cache memories - * - * Copyright (C) 2003 NEC Electronics Corporation - * Copyright (C) 2003 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -/* This file implements cache control for the rather simple cache used on - some V850E CPUs, specifically the NB85E/TEG CPU-core and the V850E/ME2 - CPU. V850E2 processors have their own (better) cache - implementation. */ - -#include -#include -#include - -#define WAIT_UNTIL_CLEAR(value) while (value) {} - -/* Set caching params via the BHC and DCC registers. */ -void v850e_cache_enable (u16 bhc, u16 icc, u16 dcc) -{ - unsigned long *r0_ram = (unsigned long *)R0_RAM_ADDR; - register u16 bhc_val asm ("r6") = bhc; - - /* Read the instruction cache control register (ICC) and confirm - that bits 0 and 1 (TCLR0, TCLR1) are all cleared. */ - WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3); - V850E_CACHE_ICC = icc; - -#ifdef V850E_CACHE_DCC - /* Configure data-cache. */ - V850E_CACHE_DCC = dcc; -#endif /* V850E_CACHE_DCC */ - - /* Configure caching for various memory regions by writing the BHC - register. The documentation says that an instruction _cannot_ - enable/disable caching for the memory region in which the - instruction itself exists; to work around this, we store - appropriate instructions into the on-chip RAM area (which is never - cached), and briefly jump there to do the work. */ -#ifdef V850E_CACHE_WRITE_IBS - *r0_ram++ = 0xf0720760; /* st.h r0, 0xfffff072[r0] */ -#endif - *r0_ram++ = 0xf06a3760; /* st.h r6, 0xfffff06a[r0] */ - *r0_ram = 0x5640006b; /* jmp [r11] */ - - asm ("mov hilo(1f), r11; jmp [%1]; 1:;" - :: "r" (bhc_val), "r" (R0_RAM_ADDR) : "r11"); -} - -static void clear_icache (void) -{ - /* 1. Read the instruction cache control register (ICC) and confirm - that bits 0 and 1 (TCLR0, TCLR1) are all cleared. */ - WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3); - - /* 2. Read the ICC register and confirm that bit 12 (LOCK0) is - cleared. Bit 13 of the ICC register is always cleared. */ - WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x1000); - - /* 3. Set the TCLR0 and TCLR1 bits of the ICC register as follows, - when clearing way 0 and way 1 at the same time: - (a) Set the TCLR0 and TCLR1 bits. - (b) Read the TCLR0 and TCLR1 bits to confirm that these bits - are cleared. - (c) Perform (a) and (b) above again. */ - V850E_CACHE_ICC |= 0x3; - WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3); - -#ifdef V850E_CACHE_REPEAT_ICC_WRITE - /* Do it again. */ - V850E_CACHE_ICC |= 0x3; - WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3); -#endif -} - -#ifdef V850E_CACHE_DCC -/* Flush or clear (or both) the data cache, depending on the value of FLAGS; - the procedure is the same for both, just the control bits used differ (and - both may be performed simultaneously). */ -static void dcache_op (unsigned short flags) -{ - /* 1. Read the data cache control register (DCC) and confirm that bits - 0, 1, 4, and 5 (DC00, DC01, DC04, DC05) are all cleared. */ - WAIT_UNTIL_CLEAR (V850E_CACHE_DCC & 0x33); - - /* 2. Clear DCC register bit 12 (DC12), bit 13 (DC13), or both - depending on the way for which tags are to be cleared. */ - V850E_CACHE_DCC &= ~0xC000; - - /* 3. Set DCC register bit 0 (DC00), bit 1 (DC01) or both depending on - the way for which tags are to be cleared. - ... - Set DCC register bit 4 (DC04), bit 5 (DC05), or both depending - on the way to be data flushed. */ - V850E_CACHE_DCC |= flags; - - /* 4. Read DCC register bit DC00, DC01 [DC04, DC05], or both depending - on the way for which tags were cleared [flushed] and confirm - that that bit is cleared. */ - WAIT_UNTIL_CLEAR (V850E_CACHE_DCC & flags); -} -#endif /* V850E_CACHE_DCC */ - -/* Flushes the contents of the dcache to memory. */ -static inline void flush_dcache (void) -{ -#ifdef V850E_CACHE_DCC - /* We only need to do something if in write-back mode. */ - if (V850E_CACHE_DCC & 0x0400) - dcache_op (0x30); -#endif /* V850E_CACHE_DCC */ -} - -/* Flushes the contents of the dcache to memory, and then clears it. */ -static inline void clear_dcache (void) -{ -#ifdef V850E_CACHE_DCC - /* We only need to do something if the dcache is enabled. */ - if (V850E_CACHE_DCC & 0x0C00) - dcache_op (0x33); -#endif /* V850E_CACHE_DCC */ -} - -/* Clears the dcache without flushing to memory first. */ -static inline void clear_dcache_no_flush (void) -{ -#ifdef V850E_CACHE_DCC - /* We only need to do something if the dcache is enabled. */ - if (V850E_CACHE_DCC & 0x0C00) - dcache_op (0x3); -#endif /* V850E_CACHE_DCC */ -} - -static inline void cache_exec_after_store (void) -{ - flush_dcache (); - clear_icache (); -} - - -/* Exported functions. */ - -void flush_icache (void) -{ - cache_exec_after_store (); -} - -void flush_icache_range (unsigned long start, unsigned long end) -{ - cache_exec_after_store (); -} - -void flush_icache_page (struct vm_area_struct *vma, struct page *page) -{ - cache_exec_after_store (); -} - -void flush_icache_user_range (struct vm_area_struct *vma, struct page *page, - unsigned long adr, int len) -{ - cache_exec_after_store (); -} - -void flush_cache_sigtramp (unsigned long addr) -{ - cache_exec_after_store (); -} diff --git a/arch/v850/kernel/v850e_intc.c b/arch/v850/kernel/v850e_intc.c deleted file mode 100644 index 8d39a52ee6d1..000000000000 --- a/arch/v850/kernel/v850e_intc.c +++ /dev/null @@ -1,104 +0,0 @@ -/* - * arch/v850/kernel/v850e_intc.c -- V850E interrupt controller (INTC) - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include -#include - -#include - -static void irq_nop (unsigned irq) { } - -static unsigned v850e_intc_irq_startup (unsigned irq) -{ - v850e_intc_clear_pending_irq (irq); - v850e_intc_enable_irq (irq); - return 0; -} - -static void v850e_intc_end_irq (unsigned irq) -{ - unsigned long psw, temp; - - /* Clear the highest-level bit in the In-service priority register - (ISPR), to allow this interrupt (or another of the same or - lesser priority) to happen again. - - The `reti' instruction normally does this automatically when the - PSW bits EP and NP are zero, but we can't always rely on reti - being used consistently to return after an interrupt (another - process can be scheduled, for instance, which can delay the - associated reti for a long time, or this process may be being - single-stepped, which uses the `dbret' instruction to return - from the kernel). - - We also set the PSW EP bit, which prevents reti from also - trying to modify the ISPR itself. */ - - /* Get PSW and disable interrupts. */ - asm volatile ("stsr psw, %0; di" : "=r" (psw)); - /* We don't want to do anything for NMIs (they don't use the ISPR). */ - if (! (psw & 0xC0)) { - /* Transition to `trap' state, so that an eventual real - reti instruction won't modify the ISPR. */ - psw |= 0x40; - /* Fake an interrupt return, which automatically clears the - appropriate bit in the ISPR. */ - asm volatile ("mov hilo(1f), %0;" - "ldsr %0, eipc; ldsr %1, eipsw;" - "reti;" - "1:" - : "=&r" (temp) : "r" (psw)); - } -} - -/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array - INITS (which is terminated by an entry with the name field == 0). */ -void __init v850e_intc_init_irq_types (struct v850e_intc_irq_init *inits, - struct hw_interrupt_type *hw_irq_types) -{ - struct v850e_intc_irq_init *init; - for (init = inits; init->name; init++) { - unsigned i; - struct hw_interrupt_type *hwit = hw_irq_types++; - - hwit->typename = init->name; - - hwit->startup = v850e_intc_irq_startup; - hwit->shutdown = v850e_intc_disable_irq; - hwit->enable = v850e_intc_enable_irq; - hwit->disable = v850e_intc_disable_irq; - hwit->ack = irq_nop; - hwit->end = v850e_intc_end_irq; - - /* Initialize kernel IRQ infrastructure for this interrupt. */ - init_irq_handlers(init->base, init->num, init->interval, hwit); - - /* Set the interrupt priorities. */ - for (i = 0; i < init->num; i++) { - unsigned irq = init->base + i * init->interval; - - /* If the interrupt is currently enabled (all - interrupts are initially disabled), then - assume whoever enabled it has set things up - properly, and avoid messing with it. */ - if (! v850e_intc_irq_enabled (irq)) - /* This write also (1) disables the - interrupt, and (2) clears any pending - interrupts. */ - V850E_INTC_IC (irq) - = (V850E_INTC_IC_PR (init->priority) - | V850E_INTC_IC_MK); - } - } -} diff --git a/arch/v850/kernel/v850e_timer_d.c b/arch/v850/kernel/v850e_timer_d.c deleted file mode 100644 index d2a4ece2574c..000000000000 --- a/arch/v850/kernel/v850e_timer_d.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * include/asm-v850/v850e_timer_d.c -- `Timer D' component often used - * with V850E CPUs - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include - -#include -#include - -/* Start interval timer TIMER (0-3). The timer will issue the - corresponding INTCMD interrupt RATE times per second. - This function does not enable the interrupt. */ -void v850e_timer_d_configure (unsigned timer, unsigned rate) -{ - unsigned divlog2, count; - - /* Calculate params for timer. */ - if (! calc_counter_params ( - V850E_TIMER_D_BASE_FREQ, rate, - V850E_TIMER_D_TMCD_CS_MIN, V850E_TIMER_D_TMCD_CS_MAX, 16, - &divlog2, &count)) - printk (KERN_WARNING - "Cannot find interval timer %d setting suitable" - " for rate of %dHz.\n" - "Using rate of %dHz instead.\n", - timer, rate, - (V850E_TIMER_D_BASE_FREQ >> divlog2) >> 16); - - /* Do the actual hardware timer initialization: */ - - /* Enable timer. */ - V850E_TIMER_D_TMCD(timer) = V850E_TIMER_D_TMCD_CAE; - /* Set clock divider. */ - V850E_TIMER_D_TMCD(timer) - = V850E_TIMER_D_TMCD_CAE - | V850E_TIMER_D_TMCD_CS(divlog2); - /* Set timer compare register. */ - V850E_TIMER_D_CMD(timer) = count; - /* Start counting. */ - V850E_TIMER_D_TMCD(timer) - = V850E_TIMER_D_TMCD_CAE - | V850E_TIMER_D_TMCD_CS(divlog2) - | V850E_TIMER_D_TMCD_CE; -} diff --git a/arch/v850/kernel/v850e_utils.c b/arch/v850/kernel/v850e_utils.c deleted file mode 100644 index e6807ef8dee6..000000000000 --- a/arch/v850/kernel/v850e_utils.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * include/asm-v850/v850e_utils.h -- Utility functions associated with - * V850E CPUs - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include - -/* Calculate counter clock-divider and count values to attain the - desired frequency RATE from the base frequency BASE_FREQ. The - counter is expected to have a clock-divider, which can divide the - system cpu clock by a power of two value from MIN_DIVLOG2 to - MAX_DIV_LOG2, and a word-size of COUNTER_SIZE bits (the counter - counts up and resets whenever it's equal to the compare register, - generating an interrupt or whatever when it does so). The returned - values are: *DIVLOG2 -- log2 of the desired clock divider and *COUNT - -- the counter compare value to use. Returns true if it was possible - to find a reasonable value, otherwise false (and the other return - values will be set to be as good as possible). */ -int calc_counter_params (unsigned long base_freq, - unsigned long rate, - unsigned min_divlog2, unsigned max_divlog2, - unsigned counter_size, - unsigned *divlog2, unsigned *count) -{ - unsigned _divlog2; - int ok = 0; - - /* Find the lowest clock divider setting that can represent RATE. */ - for (_divlog2 = min_divlog2; _divlog2 <= max_divlog2; _divlog2++) { - /* Minimum interrupt rate possible using this divider. */ - unsigned min_int_rate - = (base_freq >> _divlog2) >> counter_size; - - if (min_int_rate <= rate) { - /* This setting is the highest resolution - setting that's slow enough enough to attain - RATE interrupts per second, so use it. */ - ok = 1; - break; - } - } - - if (_divlog2 > max_divlog2) - /* Can't find correct setting. */ - _divlog2 = max_divlog2; - - if (divlog2) - *divlog2 = _divlog2; - if (count) - *count = ((base_freq >> _divlog2) + rate/2) / rate; - - return ok; -} diff --git a/arch/v850/kernel/vmlinux.lds.S b/arch/v850/kernel/vmlinux.lds.S deleted file mode 100644 index d08cd1d27f27..000000000000 --- a/arch/v850/kernel/vmlinux.lds.S +++ /dev/null @@ -1,306 +0,0 @@ -/* - * arch/v850/vmlinux.lds.S -- kernel linker script for v850 platforms - * - * Copyright (C) 2002,03,04,05 NEC Electronics Corporation - * Copyright (C) 2002,03,04,05 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - - -#define VMLINUX_SYMBOL(_sym_) _##_sym_ -#include - -/* For most platforms, this will define useful things like RAM addr/size. */ -#include - - -/* The following macros contain the usual definitions for various data areas. - The prefix `RAMK_' is used to indicate macros suitable for kernels loaded - into RAM, and similarly `ROMK_' for ROM-resident kernels. Note that all - symbols are prefixed with an extra `_' for compatibility with the v850 - toolchain. */ - - -/* Interrupt vectors. */ -#define INTV_CONTENTS \ - . = ALIGN (0x10) ; \ - __intv_start = . ; \ - *(.intv.reset) /* Reset vector */ \ - . = __intv_start + 0x10 ; \ - *(.intv.common) /* Vectors common to all v850e proc */\ - . = __intv_start + 0x80 ; \ - *(.intv.mach) /* Machine-specific int. vectors. */ \ - __intv_end = . ; - -#define RODATA_CONTENTS \ - . = ALIGN (16) ; \ - *(.rodata) *(.rodata.*) \ - *(__vermagic) /* Kernel version magic */ \ - *(.rodata1) \ - /* PCI quirks */ \ - ___start_pci_fixups_early = . ; \ - *(.pci_fixup_early) \ - ___end_pci_fixups_early = . ; \ - ___start_pci_fixups_header = . ; \ - *(.pci_fixup_header) \ - ___end_pci_fixups_header = . ; \ - ___start_pci_fixups_final = . ; \ - *(.pci_fixup_final) \ - ___end_pci_fixups_final = . ; \ - ___start_pci_fixups_enable = . ; \ - *(.pci_fixup_enable) \ - ___end_pci_fixups_enable = . ; \ - /* Kernel symbol table: Normal symbols */ \ - ___start___ksymtab = .; \ - *(__ksymtab) \ - ___stop___ksymtab = .; \ - /* Kernel symbol table: GPL-only symbols */ \ - ___start___ksymtab_gpl = .; \ - *(__ksymtab_gpl) \ - ___stop___ksymtab_gpl = .; \ - /* Kernel symbol table: GPL-future symbols */ \ - ___start___ksymtab_gpl_future = .; \ - *(__ksymtab_gpl_future) \ - ___stop___ksymtab_gpl_future = .; \ - /* Kernel symbol table: strings */ \ - *(__ksymtab_strings) \ - /* Kernel symbol table: Normal symbols */ \ - ___start___kcrctab = .; \ - *(__kcrctab) \ - ___stop___kcrctab = .; \ - /* Kernel symbol table: GPL-only symbols */ \ - ___start___kcrctab_gpl = .; \ - *(__kcrctab_gpl) \ - ___stop___kcrctab_gpl = .; \ - /* Kernel symbol table: GPL-future symbols */ \ - ___start___kcrctab_gpl_future = .; \ - *(__kcrctab_gpl_future) \ - ___stop___kcrctab_gpl_future = .; \ - /* Built-in module parameters */ \ - . = ALIGN (4) ; \ - ___start___param = .; \ - *(__param) \ - ___stop___param = .; - - -/* Kernel text segment, and some constant data areas. */ -#define TEXT_CONTENTS \ - _text = .; \ - __stext = . ; \ - TEXT_TEXT \ - SCHED_TEXT \ - *(.exit.text) /* 2.5 convention */ \ - *(.text.exit) /* 2.4 convention */ \ - *(.text.lock) \ - *(.exitcall.exit) \ - __real_etext = . ; /* There may be data after here. */ \ - RODATA_CONTENTS \ - . = ALIGN (4) ; \ - *(.call_table_data) \ - *(.call_table_text) \ - . = ALIGN (16) ; /* Exception table. */ \ - ___start___ex_table = . ; \ - *(__ex_table) \ - ___stop___ex_table = . ; \ - . = ALIGN (4) ; \ - __etext = . ; - -/* Kernel data segment. */ -#define DATA_CONTENTS \ - __sdata = . ; \ - DATA_DATA \ - EXIT_DATA /* 2.5 convention */ \ - *(.data.exit) /* 2.4 convention */ \ - . = ALIGN (16) ; \ - *(.data.cacheline_aligned) \ - . = ALIGN (0x2000) ; \ - *(.data.init_task) \ - . = ALIGN (0x2000) ; \ - __edata = . ; - -/* Kernel BSS segment. */ -#define BSS_CONTENTS \ - __sbss = . ; \ - *(.bss) \ - *(COMMON) \ - . = ALIGN (4) ; \ - __init_stack_end = . ; \ - __ebss = . ; - -/* `initcall' tables. */ -#define INITCALL_CONTENTS \ - . = ALIGN (16) ; \ - ___setup_start = . ; \ - *(.init.setup) /* 2.5 convention */ \ - *(.setup.init) /* 2.4 convention */ \ - ___setup_end = . ; \ - ___initcall_start = . ; \ - *(.initcall.init) \ - INITCALLS \ - . = ALIGN (4) ; \ - ___initcall_end = . ; \ - ___con_initcall_start = .; \ - *(.con_initcall.init) \ - ___con_initcall_end = .; - -/* Contents of `init' section for a kernel that's loaded into RAM. */ -#define RAMK_INIT_CONTENTS \ - RAMK_INIT_CONTENTS_NO_END \ - __init_end = . ; -/* Same as RAMK_INIT_CONTENTS, but doesn't define the `__init_end' symbol. */ -#define RAMK_INIT_CONTENTS_NO_END \ - . = ALIGN (4096) ; \ - __init_start = . ; \ - __sinittext = .; \ - INIT_TEXT /* 2.5 convention */ \ - __einittext = .; \ - INIT_DATA \ - *(.text.init) /* 2.4 convention */ \ - *(.data.init) \ - INITCALL_CONTENTS \ - INITRAMFS_CONTENTS - -/* The contents of `init' section for a ROM-resident kernel which - should go into RAM. */ -#define ROMK_INIT_RAM_CONTENTS \ - . = ALIGN (4096) ; \ - __init_start = . ; \ - INIT_DATA /* 2.5 convention */ \ - *(.data.init) /* 2.4 convention */ \ - __init_end = . ; \ - . = ALIGN (4096) ; - -/* The contents of `init' section for a ROM-resident kernel which - should go into ROM. */ -#define ROMK_INIT_ROM_CONTENTS \ - _sinittext = .; \ - INIT_TEXT /* 2.5 convention */ \ - _einittext = .; \ - *(.text.init) /* 2.4 convention */ \ - INITCALL_CONTENTS \ - INITRAMFS_CONTENTS - -/* A root filesystem image, for kernels with an embedded root filesystem. */ -#define ROOT_FS_CONTENTS \ - __root_fs_image_start = . ; \ - *(.root) \ - __root_fs_image_end = . ; - -#ifdef CONFIG_BLK_DEV_INITRD -/* The initramfs archive. */ -#define INITRAMFS_CONTENTS \ - . = ALIGN (4) ; \ - ___initramfs_start = . ; \ - *(.init.ramfs) \ - ___initramfs_end = . ; -#endif - -/* Where the initial bootmap (bitmap for the boot-time memory allocator) - should be place. */ -#define BOOTMAP_CONTENTS \ - . = ALIGN (4096) ; \ - __bootmap = . ; \ - . = . + 4096 ; /* enough for 128MB. */ - -/* The contents of a `typical' kram area for a kernel in RAM. */ -#define RAMK_KRAM_CONTENTS \ - __kram_start = . ; \ - TEXT_CONTENTS \ - DATA_CONTENTS \ - BSS_CONTENTS \ - RAMK_INIT_CONTENTS \ - __kram_end = . ; \ - BOOTMAP_CONTENTS - - -/* Define output sections normally used for a ROM-resident kernel. - ROM and RAM should be appropriate memory areas to use for kernel - ROM and RAM data. This assumes that ROM starts at 0 (and thus can - hold the interrupt vectors). */ -#define ROMK_SECTIONS(ROM, RAM) \ - .rom : { \ - INTV_CONTENTS \ - TEXT_CONTENTS \ - ROMK_INIT_ROM_CONTENTS \ - ROOT_FS_CONTENTS \ - } > ROM \ - \ - __rom_copy_src_start = . ; \ - \ - .data : { \ - __kram_start = . ; \ - __rom_copy_dst_start = . ; \ - DATA_CONTENTS \ - ROMK_INIT_RAM_CONTENTS \ - __rom_copy_dst_end = . ; \ - } > RAM AT> ROM \ - \ - .bss ALIGN (4) : { \ - BSS_CONTENTS \ - __kram_end = . ; \ - BOOTMAP_CONTENTS \ - } > RAM - - -/* The 32-bit variable `jiffies' is just the lower 32-bits of `jiffies_64'. */ -_jiffies = _jiffies_64 ; - - -/* Include an appropriate platform-dependent linker-script (which - usually should use the above macros to do most of the work). */ - -#ifdef CONFIG_V850E_SIM -# include "sim.ld" -#endif - -#ifdef CONFIG_V850E2_SIM85E2 -# include "sim85e2.ld" -#endif - -#ifdef CONFIG_V850E2_FPGA85E2C -# include "fpga85e2c.ld" -#endif - -#ifdef CONFIG_V850E2_ANNA -# ifdef CONFIG_ROM_KERNEL -# include "anna-rom.ld" -# else -# include "anna.ld" -# endif -#endif - -#ifdef CONFIG_V850E_AS85EP1 -# ifdef CONFIG_ROM_KERNEL -# include "as85ep1-rom.ld" -# else -# include "as85ep1.ld" -# endif -#endif - -#ifdef CONFIG_RTE_CB_MA1 -# ifdef CONFIG_ROM_KERNEL -# include "rte_ma1_cb-rom.ld" -# else -# include "rte_ma1_cb.ld" -# endif -#endif - -#ifdef CONFIG_RTE_CB_NB85E -# ifdef CONFIG_ROM_KERNEL -# include "rte_nb85e_cb-rom.ld" -# elif defined(CONFIG_RTE_CB_MULTI) -# include "rte_nb85e_cb-multi.ld" -# else -# include "rte_nb85e_cb.ld" -# endif -#endif - -#ifdef CONFIG_RTE_CB_ME2 -# include "rte_me2_cb.ld" -#endif - diff --git a/arch/v850/lib/Makefile b/arch/v850/lib/Makefile deleted file mode 100644 index 1c78b728a117..000000000000 --- a/arch/v850/lib/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# arch/v850/lib/Makefile -# - -lib-y = ashrdi3.o ashldi3.o lshrdi3.o muldi3.o negdi2.o \ - checksum.o memcpy.o memset.o diff --git a/arch/v850/lib/ashldi3.c b/arch/v850/lib/ashldi3.c deleted file mode 100644 index 9e792d53f0e4..000000000000 --- a/arch/v850/lib/ashldi3.c +++ /dev/null @@ -1,62 +0,0 @@ -/* ashldi3.c extracted from gcc-2.95.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__ashldi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.low = 0; - w.s.high = (USItype)uu.s.low << -bm; - } - else - { - USItype carries = (USItype)uu.s.low >> bm; - w.s.low = (USItype)uu.s.low << b; - w.s.high = ((USItype)uu.s.high << b) | carries; - } - - return w.ll; -} diff --git a/arch/v850/lib/ashrdi3.c b/arch/v850/lib/ashrdi3.c deleted file mode 100644 index 78efb65e315a..000000000000 --- a/arch/v850/lib/ashrdi3.c +++ /dev/null @@ -1,63 +0,0 @@ -/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__ashrdi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } - else - { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/v850/lib/checksum.c b/arch/v850/lib/checksum.c deleted file mode 100644 index 042158dfe17a..000000000000 --- a/arch/v850/lib/checksum.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * MIPS specific IP/TCP/UDP checksumming routines - * - * Authors: Ralf Baechle, - * Lots of code moved from tcp.c and ip.c; see those files - * for more names. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * $Id: checksum.c,v 1.1 2002/09/28 14:58:40 gerg Exp $ - */ -#include -#include -#include -#include -#include -#include - -static inline unsigned short from32to16 (unsigned long sum) -{ - unsigned int result; - /* - %0 %1 - hsw %1, %0 H L L H - add %1, %0 H L H+L+C H+L - */ - asm ("hsw %1, %0; add %1, %0" : "=&r" (result) : "r" (sum)); - return result >> 16; -} - -static inline unsigned int do_csum(const unsigned char * buff, int len) -{ - int odd, count; - unsigned int result = 0; - - if (len <= 0) - goto out; - odd = 1 & (unsigned long) buff; - if (odd) { - result = be16_to_cpu(*buff); - len--; - buff++; - } - count = len >> 1; /* nr of 16-bit words.. */ - if (count) { - if (2 & (unsigned long) buff) { - result += *(unsigned short *) buff; - count--; - len -= 2; - buff += 2; - } - count >>= 1; /* nr of 32-bit words.. */ - if (count) { - unsigned int carry = 0; - do { - unsigned int w = *(unsigned int *) buff; - count--; - buff += 4; - result += carry; - result += w; - carry = (w > result); - } while (count); - result += carry; - result = (result & 0xffff) + (result >> 16); - } - if (len & 2) { - result += *(unsigned short *) buff; - buff += 2; - } - } - if (len & 1) - result += le16_to_cpu(*buff); - result = from32to16(result); - if (odd) - result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); -out: - return result; -} - -/* - * This is a version of ip_compute_csum() optimized for IP headers, - * which always checksum on 4 octet boundaries. - */ -__sum16 ip_fast_csum(const void *iph, unsigned int ihl) -{ - return (__force __sum16)~do_csum(iph,ihl*4); -} - -/* - * this routine is used for miscellaneous IP-like checksums, mainly - * in icmp.c - */ -__sum16 ip_compute_csum(const void *buff, int len) -{ - return (__force __sum16)~do_csum(buff,len); -} - -/* - * computes a partial checksum, e.g. for TCP/UDP fragments - */ -__wsum csum_partial(const void *buff, int len, __wsum sum) -{ - unsigned int result = do_csum(buff, len); - - /* add in old sum, and carry.. */ - result += (__force u32)sum; - if ((__force u32)sum > result) - result += 1; - return (__force __wsum)result; -} - -EXPORT_SYMBOL(csum_partial); - -/* - * copy while checksumming, otherwise like csum_partial - */ -__wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum) -{ - /* - * It's 2:30 am and I don't feel like doing it real ... - * This is lots slower than the real thing (tm) - */ - sum = csum_partial(src, len, sum); - memcpy(dst, src, len); - - return sum; -} - -/* - * Copy from userspace and compute checksum. If we catch an exception - * then zero the rest of the buffer. - */ -__wsum csum_partial_copy_from_user (const void *src, - void *dst, - int len, __wsum sum, - int *err_ptr) -{ - int missing; - - missing = copy_from_user(dst, src, len); - if (missing) { - memset(dst + len - missing, 0, missing); - *err_ptr = -EFAULT; - } - - return csum_partial(dst, len, sum); -} diff --git a/arch/v850/lib/lshrdi3.c b/arch/v850/lib/lshrdi3.c deleted file mode 100644 index 93b1cb6fdee8..000000000000 --- a/arch/v850/lib/lshrdi3.c +++ /dev/null @@ -1,62 +0,0 @@ -/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__lshrdi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.high = 0; - w.s.low = (USItype)uu.s.high >> -bm; - } - else - { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = (USItype)uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/v850/lib/memcpy.c b/arch/v850/lib/memcpy.c deleted file mode 100644 index 492847b3e612..000000000000 --- a/arch/v850/lib/memcpy.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * arch/v850/lib/memcpy.c -- Memory copying - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include -#include - -#define CHUNK_SIZE 32 /* bytes */ -#define CHUNK_ALIGNED(addr) (((unsigned long)addr & 0x3) == 0) - -/* Note that this macro uses 8 call-clobbered registers (not including - R1), which are few enough so that the following functions don't need - to spill anything to memory. It also uses R1, which is nominally - reserved for the assembler, but here it should be OK. */ -#define COPY_CHUNK(src, dst) \ - asm ("mov %0, ep;" \ - "sld.w 0[ep], r1; sld.w 4[ep], r12;" \ - "sld.w 8[ep], r13; sld.w 12[ep], r14;" \ - "sld.w 16[ep], r15; sld.w 20[ep], r17;" \ - "sld.w 24[ep], r18; sld.w 28[ep], r19;" \ - "mov %1, ep;" \ - "sst.w r1, 0[ep]; sst.w r12, 4[ep];" \ - "sst.w r13, 8[ep]; sst.w r14, 12[ep];" \ - "sst.w r15, 16[ep]; sst.w r17, 20[ep];" \ - "sst.w r18, 24[ep]; sst.w r19, 28[ep]" \ - :: "r" (src), "r" (dst) \ - : "r1", "r12", "r13", "r14", "r15", \ - "r17", "r18", "r19", "ep", "memory"); - -void *memcpy (void *dst, const void *src, __kernel_size_t size) -{ - char *_dst = dst; - const char *_src = src; - - if (size >= CHUNK_SIZE && CHUNK_ALIGNED(_src) && CHUNK_ALIGNED(_dst)) { - /* Copy large blocks efficiently. */ - unsigned count; - for (count = size / CHUNK_SIZE; count; count--) { - COPY_CHUNK (_src, _dst); - _src += CHUNK_SIZE; - _dst += CHUNK_SIZE; - } - size %= CHUNK_SIZE; - } - - if (size > 0) - do - *_dst++ = *_src++; - while (--size); - - return dst; -} - -void *memmove (void *dst, const void *src, __kernel_size_t size) -{ - if ((unsigned long)dst < (unsigned long)src - || (unsigned long)src + size < (unsigned long)dst) - return memcpy (dst, src, size); - else { - char *_dst = dst + size; - const char *_src = src + size; - - if (size >= CHUNK_SIZE - && CHUNK_ALIGNED (_src) && CHUNK_ALIGNED (_dst)) - { - /* Copy large blocks efficiently. */ - unsigned count; - for (count = size / CHUNK_SIZE; count; count--) { - _src -= CHUNK_SIZE; - _dst -= CHUNK_SIZE; - COPY_CHUNK (_src, _dst); - } - size %= CHUNK_SIZE; - } - - if (size > 0) - do - *--_dst = *--_src; - while (--size); - - return _dst; - } -} diff --git a/arch/v850/lib/memset.c b/arch/v850/lib/memset.c deleted file mode 100644 index d1b2ad821b15..000000000000 --- a/arch/v850/lib/memset.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * arch/v850/lib/memset.c -- Memory initialization - * - * Copyright (C) 2001,02,04 NEC Corporation - * Copyright (C) 2001,02,04 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#include - -void *memset (void *dst, int val, __kernel_size_t count) -{ - if (count) { - register unsigned loop; - register void *ptr asm ("ep") = dst; - - /* replicate VAL into a long. */ - val &= 0xff; - val |= val << 8; - val |= val << 16; - - /* copy initial unaligned bytes. */ - if ((long)ptr & 1) { - *(char *)ptr = val; - ptr = (void *)((char *)ptr + 1); - count--; - } - if (count > 2 && ((long)ptr & 2)) { - *(short *)ptr = val; - ptr = (void *)((short *)ptr + 1); - count -= 2; - } - - /* 32-byte copying loop. */ - for (loop = count / 32; loop; loop--) { - asm ("sst.w %0, 0[ep]; sst.w %0, 4[ep];" - "sst.w %0, 8[ep]; sst.w %0, 12[ep];" - "sst.w %0, 16[ep]; sst.w %0, 20[ep];" - "sst.w %0, 24[ep]; sst.w %0, 28[ep]" - :: "r" (val) : "memory"); - ptr += 32; - } - count %= 32; - - /* long copying loop. */ - for (loop = count / 4; loop; loop--) { - *(long *)ptr = val; - ptr = (void *)((long *)ptr + 1); - } - count %= 4; - - /* finish up with any trailing bytes. */ - if (count & 2) { - *(short *)ptr = val; - ptr = (void *)((short *)ptr + 1); - } - if (count & 1) { - *(char *)ptr = val; - } - } - - return dst; -} diff --git a/arch/v850/lib/muldi3.c b/arch/v850/lib/muldi3.c deleted file mode 100644 index 277ca25c82c8..000000000000 --- a/arch/v850/lib/muldi3.c +++ /dev/null @@ -1,61 +0,0 @@ -/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and - gcc-2.7.2.3/longlong.h which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 2001 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define umul_ppmm(w1, w0, u, v) \ - __asm__ ("mulu %3, %0, %1" \ - : "=r" ((USItype)(w0)), \ - "=r" ((USItype)(w1)) \ - : "%0" ((USItype)(u)), \ - "r" ((USItype)(v))) - -#define __umulsidi3(u, v) \ - ({DIunion __w; \ - umul_ppmm (__w.s.high, __w.s.low, u, v); \ - __w.ll; }) - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__muldi3 (DItype u, DItype v) -{ - DIunion w; - DIunion uu, vv; - - uu.ll = u, - vv.ll = v; - - w.ll = __umulsidi3 (uu.s.low, vv.s.low); - w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high - + (USItype) uu.s.high * (USItype) vv.s.low); - - return w.ll; -} diff --git a/arch/v850/lib/negdi2.c b/arch/v850/lib/negdi2.c deleted file mode 100644 index 571e04fc619a..000000000000 --- a/arch/v850/lib/negdi2.c +++ /dev/null @@ -1,25 +0,0 @@ -/* - * arch/v850/lib/negdi2.c -- 64-bit negation - * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -typedef int DItype __attribute__ ((mode (DI))); - -DItype __negdi2 (DItype x) -{ - __asm__ __volatile__ - ("not r6, r10;" - "add 1, r10;" - "setf c, r6;" - "not r7, r11;" - "add r6, r11" - ::: "r6", "r7", "r10", "r11"); -} diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 8fc7451c0049..3b4a14e355c1 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -942,22 +942,6 @@ config SERIAL_IP22_ZILOG_CONSOLE depends on SERIAL_IP22_ZILOG=y select SERIAL_CORE_CONSOLE -config V850E_UART - bool "NEC V850E on-chip UART support" - depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1 - select SERIAL_CORE - default y - -config V850E_UARTB - bool - depends on V850E_UART && V850E_ME2 - default y - -config V850E_UART_CONSOLE - bool "Use NEC V850E on-chip UART for console" - depends on V850E_UART - select SERIAL_CORE_CONSOLE - config SERIAL_SH_SCI tristate "SuperH SCI(F) serial port support" depends on SUPERH || H8300 diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index ccb78f66c2b6..48399e134c0d 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -788,8 +788,6 @@ config WATCHDOG_RIO machines. The watchdog timeout period is normally one minute but can be changed with a boot-time parameter. -# V850 Architecture - # XTENSA Architecture # diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 25b352b664d9..edd305a64e63 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -119,8 +119,6 @@ obj-$(CONFIG_SH_WDT) += shwdt.o # SPARC64 Architecture -# V850 Architecture - # XTENSA Architecture # Architecture Independant diff --git a/include/asm-v850/Kbuild b/include/asm-v850/Kbuild deleted file mode 100644 index c68e1680da01..000000000000 --- a/include/asm-v850/Kbuild +++ /dev/null @@ -1 +0,0 @@ -include include/asm-generic/Kbuild.asm diff --git a/include/asm-v850/a.out.h b/include/asm-v850/a.out.h deleted file mode 100644 index e9439a0708f6..000000000000 --- a/include/asm-v850/a.out.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef __V850_A_OUT_H__ -#define __V850_A_OUT_H__ - -struct exec -{ - unsigned long a_info; /* Use macros N_MAGIC, etc for access */ - unsigned a_text; /* length of text, in bytes */ - unsigned a_data; /* length of data, in bytes */ - unsigned a_bss; /* length of uninitialized data area for file, in bytes */ - unsigned a_syms; /* length of symbol table data in file, in bytes */ - unsigned a_entry; /* start address */ - unsigned a_trsize; /* length of relocation info for text, in bytes */ - unsigned a_drsize; /* length of relocation info for data, in bytes */ -}; - -#define N_TRSIZE(a) ((a).a_trsize) -#define N_DRSIZE(a) ((a).a_drsize) -#define N_SYMSIZE(a) ((a).a_syms) - - -#endif /* __V850_A_OUT_H__ */ diff --git a/include/asm-v850/anna.h b/include/asm-v850/anna.h deleted file mode 100644 index cd5eaee103b0..000000000000 --- a/include/asm-v850/anna.h +++ /dev/null @@ -1,137 +0,0 @@ -/* - * include/asm-v850/anna.h -- Anna V850E2 evaluation cpu chip/board - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_ANNA_H__ -#define __V850_ANNA_H__ - -#include /* Based on V850E2 core. */ - - -#define CPU_MODEL "v850e2/anna" -#define CPU_MODEL_LONG "NEC V850E2/Anna" -#define PLATFORM "anna" -#define PLATFORM_LONG "NEC/Midas lab V850E2/Anna evaluation board" - -#define CPU_CLOCK_FREQ 200000000 /* 200MHz */ -#define SYS_CLOCK_FREQ 33300000 /* 33.3MHz */ - - -/* 1MB of static RAM. This memory is mirrored 64 times. */ -#define SRAM_ADDR 0x04000000 -#define SRAM_SIZE 0x00100000 /* 1MB */ -/* 64MB of DRAM. */ -#define SDRAM_ADDR 0x08000000 -#define SDRAM_SIZE 0x04000000 /* 64MB */ - - -/* For */ -#define PAGE_OFFSET SRAM_ADDR - -/* We use on-chip RAM, for a few miscellaneous variables that must be - accessible using a load instruction relative to R0. The Anna chip has - 128K of `dLB' ram nominally located at 0xFFF00000, but it's mirrored - every 128K, so we can use the `last mirror' (except for the portion at - the top which is overridden by I/O space). In addition, the early - sample chip we're using has lots of memory errors in the dLB ram, so we - use a specially chosen location that has at least 20 bytes of contiguous - valid memory (xxxF0020 - xxxF003F). */ -#define R0_RAM_ADDR 0xFFFF8020 - - -/* Anna specific control registers. */ -#define ANNA_ILBEN_ADDR 0xFFFFF7F2 -#define ANNA_ILBEN (*(volatile u16 *)ANNA_ILBEN_ADDR) - - -/* I/O port P0-P3. */ -/* Direct I/O. Bits 0-7 are pins Pn0-Pn7. */ -#define ANNA_PORT_IO_ADDR(n) (0xFFFFF400 + (n) * 2) -#define ANNA_PORT_IO(n) (*(volatile u8 *)ANNA_PORT_IO_ADDR(n)) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define ANNA_PORT_PM_ADDR(n) (0xFFFFF410 + (n) * 2) -#define ANNA_PORT_PM(n) (*(volatile u8 *)ANNA_PORT_PM_ADDR(n)) - - -/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */ -#define IRQ_INTP(n) (n) /* Pnnn (pin) interrupts 0-15 */ -#define IRQ_INTP_NUM 16 -#define IRQ_INTOV(n) (0x10 + (n)) /* 0-2 */ -#define IRQ_INTOV_NUM 2 -#define IRQ_INTCCC(n) (0x12 + (n)) -#define IRQ_INTCCC_NUM 4 -#define IRQ_INTCMD(n) (0x16 + (n)) /* interval timer interrupts 0-5 */ -#define IRQ_INTCMD_NUM 6 -#define IRQ_INTDMA(n) (0x1C + (n)) /* DMA interrupts 0-3 */ -#define IRQ_INTDMA_NUM 4 -#define IRQ_INTDMXER 0x20 -#define IRQ_INTSRE(n) (0x21 + (n)*3) /* UART 0-1 reception error */ -#define IRQ_INTSRE_NUM 2 -#define IRQ_INTSR(n) (0x22 + (n)*3) /* UART 0-1 reception completion */ -#define IRQ_INTSR_NUM 2 -#define IRQ_INTST(n) (0x23 + (n)*3) /* UART 0-1 transmission completion */ -#define IRQ_INTST_NUM 2 - -#define NUM_CPU_IRQS 64 - -#ifndef __ASSEMBLY__ -/* Initialize chip interrupts. */ -extern void anna_init_irqs (void); -#endif - - -/* Anna UART details (basically the same as the V850E/MA1, but 2 channels). */ -#define V850E_UART_NUM_CHANNELS 2 -#define V850E_UART_BASE_FREQ (SYS_CLOCK_FREQ / 2) -#define V850E_UART_CHIP_NAME "V850E2/NA85E2A" - -/* This is the UART channel that's actually connected on the board. */ -#define V850E_UART_CONSOLE_CHANNEL 1 - -/* This is a function that gets called before configuring the UART. */ -#define V850E_UART_PRE_CONFIGURE anna_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void anna_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif - -/* This board supports RTS/CTS for the on-chip UART, but only for channel 1. */ - -/* CTS for UART channel 1 is pin P37 (bit 7 of port 3). */ -#define V850E_UART_CTS(chan) ((chan) == 1 ? !(ANNA_PORT_IO(3) & 0x80) : 1) -/* RTS for UART channel 1 is pin P07 (bit 7 of port 0). */ -#define V850E_UART_SET_RTS(chan, val) \ - do { \ - if (chan == 1) { \ - unsigned old = ANNA_PORT_IO(0); \ - if (val) \ - ANNA_PORT_IO(0) = old & ~0x80; \ - else \ - ANNA_PORT_IO(0) = old | 0x80; \ - } \ - } while (0) - - -/* Timer C details. */ -#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600 - -/* Timer D details (the Anna actually has 5 of these; should change later). */ -#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540 -#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0) -#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2) -#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4) - -#define V850E_TIMER_D_BASE_FREQ SYS_CLOCK_FREQ -#define V850E_TIMER_D_TMCD_CS_MIN 1 /* min 2^1 divider */ - - -#endif /* __V850_ANNA_H__ */ diff --git a/include/asm-v850/as85ep1.h b/include/asm-v850/as85ep1.h deleted file mode 100644 index 5a5ca9073d09..000000000000 --- a/include/asm-v850/as85ep1.h +++ /dev/null @@ -1,152 +0,0 @@ -/* - * include/asm-v850/as85ep1.h -- AS85EP1 evaluation CPU chip/board - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_AS85EP1_H__ -#define __V850_AS85EP1_H__ - -#include - - -#define CPU_MODEL "as85ep1" -#define CPU_MODEL_LONG "NEC V850E/AS85EP1" -#define PLATFORM "AS85EP1" -#define PLATFORM_LONG "NEC V850E/AS85EP1 evaluation board" - -#define CPU_CLOCK_FREQ 96000000 /* 96MHz */ -#define SYS_CLOCK_FREQ CPU_CLOCK_FREQ - - -/* 1MB of static RAM. */ -#define SRAM_ADDR 0x00400000 -#define SRAM_SIZE 0x00100000 /* 1MB */ -/* About 58MB of DRAM. This can actually be at one of two positions, - determined by jump JP3; we have to use the first position because the - second is partially out of processor instruction addressing range - (though in the second position there's actually 64MB available). */ -#define SDRAM_ADDR 0x00600000 -#define SDRAM_SIZE 0x039F8000 /* approx 58MB */ - -/* For */ -#define PAGE_OFFSET SRAM_ADDR - -/* We use on-chip RAM, for a few miscellaneous variables that must be - accessible using a load instruction relative to R0. The AS85EP1 chip - 16K of internal RAM located slightly before I/O space. */ -#define R0_RAM_ADDR 0xFFFF8000 - - -/* AS85EP1 specific control registers. */ -#define AS85EP1_CSC_ADDR(n) (0xFFFFF060 + (n) * 2) -#define AS85EP1_CSC(n) (*(volatile u16 *)AS85EP1_CSC_ADDR(n)) -#define AS85EP1_BSC_ADDR 0xFFFFF066 -#define AS85EP1_BSC (*(volatile u16 *)AS85EP1_BSC_ADDR) -#define AS85EP1_BCT_ADDR(n) (0xFFFFF480 + (n) * 2) -#define AS85EP1_BCT(n) (*(volatile u16 *)AS85EP1_BCT_ADDR(n)) -#define AS85EP1_DWC_ADDR(n) (0xFFFFF484 + (n) * 2) -#define AS85EP1_DWC(n) (*(volatile u16 *)AS85EP1_DWC_ADDR(n)) -#define AS85EP1_BCC_ADDR 0xFFFFF488 -#define AS85EP1_BCC (*(volatile u16 *)AS85EP1_BCC_ADDR) -#define AS85EP1_ASC_ADDR 0xFFFFF48A -#define AS85EP1_ASC (*(volatile u16 *)AS85EP1_ASC_ADDR) -#define AS85EP1_BCP_ADDR 0xFFFFF48C -#define AS85EP1_BCP (*(volatile u16 *)AS85EP1_BCP_ADDR) -#define AS85EP1_LBS_ADDR 0xFFFFF48E -#define AS85EP1_LBS (*(volatile u16 *)AS85EP1_LBS_ADDR) -#define AS85EP1_BMC_ADDR 0xFFFFF498 -#define AS85EP1_BMC (*(volatile u16 *)AS85EP1_BMC_ADDR) -#define AS85EP1_PRC_ADDR 0xFFFFF49A -#define AS85EP1_PRC (*(volatile u16 *)AS85EP1_PRC_ADDR) -#define AS85EP1_SCR_ADDR(n) (0xFFFFF4A0 + (n) * 4) -#define AS85EP1_SCR(n) (*(volatile u16 *)AS85EP1_SCR_ADDR(n)) -#define AS85EP1_RFS_ADDR(n) (0xFFFFF4A2 + (n) * 4) -#define AS85EP1_RFS(n) (*(volatile u16 *)AS85EP1_RFS_ADDR(n)) -#define AS85EP1_IRAMM_ADDR 0xFFFFF80A -#define AS85EP1_IRAMM (*(volatile u8 *)AS85EP1_IRAMM_ADDR) - - - -/* I/O port P0-P13. */ -/* Direct I/O. Bits 0-7 are pins Pn0-Pn7. */ -#define AS85EP1_PORT_IO_ADDR(n) (0xFFFFF400 + (n) * 2) -#define AS85EP1_PORT_IO(n) (*(volatile u8 *)AS85EP1_PORT_IO_ADDR(n)) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define AS85EP1_PORT_PM_ADDR(n) (0xFFFFF420 + (n) * 2) -#define AS85EP1_PORT_PM(n) (*(volatile u8 *)AS85EP1_PORT_PM_ADDR(n)) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define AS85EP1_PORT_PMC_ADDR(n) (0xFFFFF440 + (n) * 2) -#define AS85EP1_PORT_PMC(n) (*(volatile u8 *)AS85EP1_PORT_PMC_ADDR(n)) - - -/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */ -#define IRQ_INTCCC(n) (0x0C + (n)) -#define IRQ_INTCCC_NUM 8 -#define IRQ_INTCMD(n) (0x14 + (n)) /* interval timer interrupts 0-5 */ -#define IRQ_INTCMD_NUM 6 -#define IRQ_INTSRE(n) (0x1E + (n)*3) /* UART 0-1 reception error */ -#define IRQ_INTSRE_NUM 2 -#define IRQ_INTSR(n) (0x1F + (n)*3) /* UART 0-1 reception completion */ -#define IRQ_INTSR_NUM 2 -#define IRQ_INTST(n) (0x20 + (n)*3) /* UART 0-1 transmission completion */ -#define IRQ_INTST_NUM 2 - -#define NUM_CPU_IRQS 64 - -#ifndef __ASSEMBLY__ -/* Initialize chip interrupts. */ -extern void as85ep1_init_irqs (void); -#endif - - -/* AS85EP1 UART details (basically the same as the V850E/MA1, but 2 channels). */ -#define V850E_UART_NUM_CHANNELS 2 -#define V850E_UART_BASE_FREQ (SYS_CLOCK_FREQ / 4) -#define V850E_UART_CHIP_NAME "V850E/NA85E" - -/* This is a function that gets called before configuring the UART. */ -#define V850E_UART_PRE_CONFIGURE as85ep1_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void as85ep1_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif - -/* This board supports RTS/CTS for the on-chip UART, but only for channel 1. */ - -/* CTS for UART channel 1 is pin P54 (bit 4 of port 5). */ -#define V850E_UART_CTS(chan) ((chan) == 1 ? !(AS85EP1_PORT_IO(5) & 0x10) : 1) -/* RTS for UART channel 1 is pin P53 (bit 3 of port 5). */ -#define V850E_UART_SET_RTS(chan, val) \ - do { \ - if (chan == 1) { \ - unsigned old = AS85EP1_PORT_IO(5); \ - if (val) \ - AS85EP1_PORT_IO(5) = old & ~0x8; \ - else \ - AS85EP1_PORT_IO(5) = old | 0x8; \ - } \ - } while (0) - - -/* Timer C details. */ -#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600 - -/* Timer D details (the AS85EP1 actually has 5 of these; should change later). */ -#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540 -#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0) -#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2) -#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4) - -#define V850E_TIMER_D_BASE_FREQ SYS_CLOCK_FREQ -#define V850E_TIMER_D_TMCD_CS_MIN 2 /* min 2^2 divider */ - - -#endif /* __V850_AS85EP1_H__ */ diff --git a/include/asm-v850/asm.h b/include/asm-v850/asm.h deleted file mode 100644 index bf1e785a5dde..000000000000 --- a/include/asm-v850/asm.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * include/asm-v850/asm.h -- Macros for writing assembly code - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#define G_ENTRY(name) \ - .balign 4; \ - .globl name; \ - .type name,@function; \ - name -#define G_DATA(name) \ - .globl name; \ - .type name,@object; \ - name -#define END(name) \ - .size name,.-name - -#define L_ENTRY(name) \ - .balign 4; \ - .type name,@function; \ - name -#define L_DATA(name) \ - .type name,@object; \ - name diff --git a/include/asm-v850/atomic.h b/include/asm-v850/atomic.h deleted file mode 100644 index e4e57de08f73..000000000000 --- a/include/asm-v850/atomic.h +++ /dev/null @@ -1,131 +0,0 @@ -/* - * include/asm-v850/atomic.h -- Atomic operations - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_ATOMIC_H__ -#define __V850_ATOMIC_H__ - - -#include - -#ifdef CONFIG_SMP -#error SMP not supported -#endif - -typedef struct { int counter; } atomic_t; - -#define ATOMIC_INIT(i) { (i) } - -#ifdef __KERNEL__ - -#define atomic_read(v) ((v)->counter) -#define atomic_set(v,i) (((v)->counter) = (i)) - -static inline int atomic_add_return (int i, volatile atomic_t *v) -{ - unsigned long flags; - int res; - - local_irq_save (flags); - res = v->counter + i; - v->counter = res; - local_irq_restore (flags); - - return res; -} - -static __inline__ int atomic_sub_return (int i, volatile atomic_t *v) -{ - unsigned long flags; - int res; - - local_irq_save (flags); - res = v->counter - i; - v->counter = res; - local_irq_restore (flags); - - return res; -} - -static __inline__ void atomic_clear_mask (unsigned long mask, unsigned long *addr) -{ - unsigned long flags; - - local_irq_save (flags); - *addr &= ~mask; - local_irq_restore (flags); -} - -#endif - -#define atomic_add(i, v) atomic_add_return ((i), (v)) -#define atomic_sub(i, v) atomic_sub_return ((i), (v)) - -#define atomic_dec_return(v) atomic_sub_return (1, (v)) -#define atomic_inc_return(v) atomic_add_return (1, (v)) -#define atomic_inc(v) atomic_inc_return (v) -#define atomic_dec(v) atomic_dec_return (v) - -/* - * atomic_inc_and_test - increment and test - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) - -#define atomic_sub_and_test(i,v) (atomic_sub_return ((i), (v)) == 0) -#define atomic_dec_and_test(v) (atomic_sub_return (1, (v)) == 0) -#define atomic_add_negative(i,v) (atomic_add_return ((i), (v)) < 0) - -static inline int atomic_cmpxchg(atomic_t *v, int old, int new) -{ - int ret; - unsigned long flags; - - local_irq_save(flags); - ret = v->counter; - if (likely(ret == old)) - v->counter = new; - local_irq_restore(flags); - - return ret; -} - -#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) - -static inline int atomic_add_unless(atomic_t *v, int a, int u) -{ - int ret; - unsigned long flags; - - local_irq_save(flags); - ret = v->counter; - if (ret != u) - v->counter += a; - local_irq_restore(flags); - - return ret != u; -} - -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -/* Atomic operations are already serializing on ARM */ -#define smp_mb__before_atomic_dec() barrier() -#define smp_mb__after_atomic_dec() barrier() -#define smp_mb__before_atomic_inc() barrier() -#define smp_mb__after_atomic_inc() barrier() - -#include -#endif /* __V850_ATOMIC_H__ */ diff --git a/include/asm-v850/auxvec.h b/include/asm-v850/auxvec.h deleted file mode 100644 index f493232d0224..000000000000 --- a/include/asm-v850/auxvec.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __V850_AUXVEC_H__ -#define __V850_AUXVEC_H__ - -#endif /* __V850_AUXVEC_H__ */ diff --git a/include/asm-v850/bitops.h b/include/asm-v850/bitops.h deleted file mode 100644 index f82f5b4a56e0..000000000000 --- a/include/asm-v850/bitops.h +++ /dev/null @@ -1,161 +0,0 @@ -/* - * include/asm-v850/bitops.h -- Bit operations - * - * Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation - * Copyright (C) 2001,02,03,04,05 Miles Bader - * Copyright (C) 1992 Linus Torvalds. - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - */ - -#ifndef __V850_BITOPS_H__ -#define __V850_BITOPS_H__ - -#ifndef _LINUX_BITOPS_H -#error only can be included directly -#endif - -#include /* unlikely */ -#include /* swab32 */ -#include /* interrupt enable/disable */ - - -#ifdef __KERNEL__ - -#include - -/* - * The __ functions are not atomic - */ - -/* In the following constant-bit-op macros, a "g" constraint is used when - we really need an integer ("i" constraint). This is to avoid - warnings/errors from the compiler in the case where the associated - operand _isn't_ an integer, and shouldn't produce bogus assembly because - use of that form is protected by a guard statement that checks for - constants, and should otherwise be removed by the optimizer. This - _usually_ works -- however, __builtin_constant_p returns true for a - variable with a known constant value too, and unfortunately gcc will - happily put the variable in a register and use the register for the "g" - constraint'd asm operand. To avoid the latter problem, we add a - constant offset to the operand and subtract it back in the asm code; - forcing gcc to do arithmetic on the value is usually enough to get it - to use a real constant value. This is horrible, and ultimately - unreliable too, but it seems to work for now (hopefully gcc will offer - us more control in the future, so we can do a better job). */ - -#define __const_bit_op(op, nr, addr) \ - ({ __asm__ (op " (%0 - 0x123), %1" \ - :: "g" (((nr) & 0x7) + 0x123), \ - "m" (*((char *)(addr) + ((nr) >> 3))) \ - : "memory"); }) -#define __var_bit_op(op, nr, addr) \ - ({ int __nr = (nr); \ - __asm__ (op " %0, [%1]" \ - :: "r" (__nr & 0x7), \ - "r" ((char *)(addr) + (__nr >> 3)) \ - : "memory"); }) -#define __bit_op(op, nr, addr) \ - ((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \ - ? __const_bit_op (op, nr, addr) \ - : __var_bit_op (op, nr, addr)) - -#define __set_bit(nr, addr) __bit_op ("set1", nr, addr) -#define __clear_bit(nr, addr) __bit_op ("clr1", nr, addr) -#define __change_bit(nr, addr) __bit_op ("not1", nr, addr) - -/* The bit instructions used by `non-atomic' variants are actually atomic. */ -#define set_bit __set_bit -#define clear_bit __clear_bit -#define change_bit __change_bit - - -#define __const_tns_bit_op(op, nr, addr) \ - ({ int __tns_res; \ - __asm__ __volatile__ ( \ - "tst1 (%1 - 0x123), %2; setf nz, %0; " op " (%1 - 0x123), %2" \ - : "=&r" (__tns_res) \ - : "g" (((nr) & 0x7) + 0x123), \ - "m" (*((char *)(addr) + ((nr) >> 3))) \ - : "memory"); \ - __tns_res; \ - }) -#define __var_tns_bit_op(op, nr, addr) \ - ({ int __nr = (nr); \ - int __tns_res; \ - __asm__ __volatile__ ( \ - "tst1 %1, [%2]; setf nz, %0; " op " %1, [%2]" \ - : "=&r" (__tns_res) \ - : "r" (__nr & 0x7), \ - "r" ((char *)(addr) + (__nr >> 3)) \ - : "memory"); \ - __tns_res; \ - }) -#define __tns_bit_op(op, nr, addr) \ - ((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \ - ? __const_tns_bit_op (op, nr, addr) \ - : __var_tns_bit_op (op, nr, addr)) -#define __tns_atomic_bit_op(op, nr, addr) \ - ({ int __tns_atomic_res, __tns_atomic_flags; \ - local_irq_save (__tns_atomic_flags); \ - __tns_atomic_res = __tns_bit_op (op, nr, addr); \ - local_irq_restore (__tns_atomic_flags); \ - __tns_atomic_res; \ - }) - -#define __test_and_set_bit(nr, addr) __tns_bit_op ("set1", nr, addr) -#define test_and_set_bit(nr, addr) __tns_atomic_bit_op ("set1", nr, addr) - -#define __test_and_clear_bit(nr, addr) __tns_bit_op ("clr1", nr, addr) -#define test_and_clear_bit(nr, addr) __tns_atomic_bit_op ("clr1", nr, addr) - -#define __test_and_change_bit(nr, addr) __tns_bit_op ("not1", nr, addr) -#define test_and_change_bit(nr, addr) __tns_atomic_bit_op ("not1", nr, addr) - - -#define __const_test_bit(nr, addr) \ - ({ int __test_bit_res; \ - __asm__ __volatile__ ("tst1 (%1 - 0x123), %2; setf nz, %0" \ - : "=r" (__test_bit_res) \ - : "g" (((nr) & 0x7) + 0x123), \ - "m" (*((const char *)(addr) + ((nr) >> 3)))); \ - __test_bit_res; \ - }) -static inline int __test_bit (int nr, const void *addr) -{ - int res; - __asm__ __volatile__ ("tst1 %1, [%2]; setf nz, %0" - : "=r" (res) - : "r" (nr & 0x7), "r" (addr + (nr >> 3))); - return res; -} -#define test_bit(nr,addr) \ - ((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \ - ? __const_test_bit ((nr), (addr)) \ - : __test_bit ((nr), (addr))) - - -/* clear_bit doesn't provide any barrier for the compiler. */ -#define smp_mb__before_clear_bit() barrier () -#define smp_mb__after_clear_bit() barrier () - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) -#define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a) - -#include - -#endif /* __KERNEL__ */ - -#endif /* __V850_BITOPS_H__ */ diff --git a/include/asm-v850/bug.h b/include/asm-v850/bug.h deleted file mode 100644 index b0ed2d35f3e8..000000000000 --- a/include/asm-v850/bug.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * include/asm-v850/bug.h -- Bug reporting - * - * Copyright (C) 2003 NEC Electronics Corporation - * Copyright (C) 2003 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_BUG_H__ -#define __V850_BUG_H__ - -#ifdef CONFIG_BUG -extern void __bug (void) __attribute__ ((noreturn)); -#define BUG() __bug() -#define HAVE_ARCH_BUG -#endif - -#include - -#endif /* __V850_BUG_H__ */ diff --git a/include/asm-v850/bugs.h b/include/asm-v850/bugs.h deleted file mode 100644 index 71110a65c1d7..000000000000 --- a/include/asm-v850/bugs.h +++ /dev/null @@ -1,16 +0,0 @@ -/* - * include/asm-v850e/bugs.h - * - * Copyright (C) 1994 Linus Torvalds - */ - -/* - * This is included by init/main.c to check for architecture-dependent bugs. - * - * Needs: - * void check_bugs(void); - */ - -static void check_bugs(void) -{ -} diff --git a/include/asm-v850/byteorder.h b/include/asm-v850/byteorder.h deleted file mode 100644 index a6f07530050e..000000000000 --- a/include/asm-v850/byteorder.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * include/asm-v850/byteorder.h -- Endian id and conversion ops - * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_BYTEORDER_H__ -#define __V850_BYTEORDER_H__ - -#include -#include - -#ifdef __GNUC__ - -static __inline__ __attribute_const__ __u32 ___arch__swab32 (__u32 word) -{ - __u32 res; - __asm__ ("bsw %1, %0" : "=r" (res) : "r" (word)); - return res; -} - -static __inline__ __attribute_const__ __u16 ___arch__swab16 (__u16 half_word) -{ - __u16 res; - __asm__ ("bsh %1, %0" : "=r" (res) : "r" (half_word)); - return res; -} - -#define __arch__swab32(x) ___arch__swab32(x) -#define __arch__swab16(x) ___arch__swab16(x) - -#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) -# define __BYTEORDER_HAS_U64__ -# define __SWAB_64_THRU_32__ -#endif - -#endif /* __GNUC__ */ - -#include - -#endif /* __V850_BYTEORDER_H__ */ diff --git a/include/asm-v850/cache.h b/include/asm-v850/cache.h deleted file mode 100644 index 8832c7ea3242..000000000000 --- a/include/asm-v850/cache.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * include/asm-v850/cache.h -- Cache operations - * - * Copyright (C) 2001,05 NEC Corporation - * Copyright (C) 2001,05 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_CACHE_H__ -#define __V850_CACHE_H__ - -/* All cache operations are machine-dependent. */ -#include - -#ifndef L1_CACHE_BYTES -/* This processor has no cache, so just choose an arbitrary value. */ -#define L1_CACHE_BYTES 16 -#define L1_CACHE_SHIFT 4 -#endif - -#endif /* __V850_CACHE_H__ */ diff --git a/include/asm-v850/cacheflush.h b/include/asm-v850/cacheflush.h deleted file mode 100644 index 9ece05a202ef..000000000000 --- a/include/asm-v850/cacheflush.h +++ /dev/null @@ -1,70 +0,0 @@ -/* - * include/asm-v850/cacheflush.h - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_CACHEFLUSH_H__ -#define __V850_CACHEFLUSH_H__ - -/* Somebody depends on this; sigh... */ -#include - -#include - - -/* The following are all used by the kernel in ways that only affect - systems with MMUs, so we don't need them. */ -#define flush_cache_all() ((void)0) -#define flush_cache_mm(mm) ((void)0) -#define flush_cache_dup_mm(mm) ((void)0) -#define flush_cache_range(vma, start, end) ((void)0) -#define flush_cache_page(vma, vmaddr, pfn) ((void)0) -#define flush_dcache_page(page) ((void)0) -#define flush_dcache_mmap_lock(mapping) ((void)0) -#define flush_dcache_mmap_unlock(mapping) ((void)0) -#define flush_cache_vmap(start, end) ((void)0) -#define flush_cache_vunmap(start, end) ((void)0) - -#ifdef CONFIG_NO_CACHE - -/* Some systems have no cache at all, in which case we don't need these - either. */ -#define flush_icache() ((void)0) -#define flush_icache_range(start, end) ((void)0) -#define flush_icache_page(vma,pg) ((void)0) -#define flush_icache_user_range(vma,pg,adr,len) ((void)0) -#define flush_cache_sigtramp(vaddr) ((void)0) - -#else /* !CONFIG_NO_CACHE */ - -struct page; -struct mm_struct; -struct vm_area_struct; - -/* Otherwise, somebody had better define them. */ -extern void flush_icache (void); -extern void flush_icache_range (unsigned long start, unsigned long end); -extern void flush_icache_page (struct vm_area_struct *vma, struct page *page); -extern void flush_icache_user_range (struct vm_area_struct *vma, - struct page *page, - unsigned long adr, int len); -extern void flush_cache_sigtramp (unsigned long addr); - -#endif /* CONFIG_NO_CACHE */ - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { memcpy(dst, src, len); \ - flush_icache_user_range(vma, page, vaddr, len); \ -} while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) - -#endif /* __V850_CACHEFLUSH_H__ */ diff --git a/include/asm-v850/checksum.h b/include/asm-v850/checksum.h deleted file mode 100644 index d1dddd938262..000000000000 --- a/include/asm-v850/checksum.h +++ /dev/null @@ -1,112 +0,0 @@ -/* - * include/asm-v850/checksum.h -- Checksum ops - * - * Copyright (C) 2001,2005 NEC Corporation - * Copyright (C) 2001,2005 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_CHECKSUM_H__ -#define __V850_CHECKSUM_H__ - -/* - * computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -extern __wsum csum_partial(const void *buff, int len, __wsum sum); - -/* - * the same as csum_partial, but copies from src while it - * checksums - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -extern __wsum csum_partial_copy_nocheck(const void *src, - void *dst, int len, __wsum sum); - - -/* - * the same as csum_partial_copy, but copies from user space. - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -extern __wsum csum_partial_copy_from_user (const void *src, - void *dst, - int len, __wsum sum, - int *csum_err); - -__sum16 ip_fast_csum(const void *iph, unsigned int ihl); - -/* - * Fold a partial checksum - */ -static inline __sum16 csum_fold (__wsum sum) -{ - unsigned int result; - /* - %0 %1 - hsw %1, %0 H L L H - add %1, %0 H L H+L+C H+L - */ - asm ("hsw %1, %0; add %1, %0" : "=&r" (result) : "r" (sum)); - return (__force __sum16)(~result >> 16); -} - - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __wsum -csum_tcpudp_nofold (__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, __wsum sum) -{ - int __carry; - __asm__ ("add %2, %0;" - "setf c, %1;" - "add %1, %0;" - "add %3, %0;" - "setf c, %1;" - "add %1, %0;" - "add %4, %0;" - "setf c, %1;" - "add %1, %0" - : "=&r" (sum), "=&r" (__carry) - : "r" (daddr), "r" (saddr), - "r" ((len + proto) << 8), - "0" (sum)); - return sum; -} - -static inline __sum16 -csum_tcpudp_magic (__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, __wsum sum) -{ - return csum_fold (csum_tcpudp_nofold (saddr, daddr, len, proto, sum)); -} - -/* - * this routine is used for miscellaneous IP-like checksums, mainly - * in icmp.c - */ -extern __sum16 ip_compute_csum(const void *buff, int len); - - -#endif /* __V850_CHECKSUM_H__ */ diff --git a/include/asm-v850/clinkage.h b/include/asm-v850/clinkage.h deleted file mode 100644 index c389691d6f86..000000000000 --- a/include/asm-v850/clinkage.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * include/asm-v850/clinkage.h -- Macros to reflect C symbol-naming conventions - * - * Copyright (C) 2001,02 NEC Corporatione - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_CLINKAGE_H__ -#define __V850_CLINKAGE_H__ - -#include -#include - -#define C_SYMBOL_NAME(name) macrology_paste(_, name) -#define C_SYMBOL_STRING(name) macrology_stringify(C_SYMBOL_NAME(name)) -#define C_ENTRY(name) G_ENTRY(C_SYMBOL_NAME(name)) -#define C_DATA(name) G_DATA(C_SYMBOL_NAME(name)) -#define C_END(name) END(C_SYMBOL_NAME(name)) - -#endif /* __V850_CLINKAGE_H__ */ diff --git a/include/asm-v850/cputime.h b/include/asm-v850/cputime.h deleted file mode 100644 index 7c799c33b8a9..000000000000 --- a/include/asm-v850/cputime.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_CPUTIME_H -#define __V850_CPUTIME_H - -#include - -#endif /* __V850_CPUTIME_H */ diff --git a/include/asm-v850/current.h b/include/asm-v850/current.h deleted file mode 100644 index 30aae5673770..000000000000 --- a/include/asm-v850/current.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * include/asm-v850/current.h -- Current task - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_CURRENT_H__ -#define __V850_CURRENT_H__ - -#ifndef __ASSEMBLY__ /* is not asm-safe. */ -#include -#endif - -#include - - -/* Register used to hold the current task pointer while in the kernel. - Any `call clobbered' register without a special meaning should be OK, - but check asm/v850/kernel/entry.S to be sure. */ -#define CURRENT_TASK_REGNUM 16 -#define CURRENT_TASK macrology_paste (r, CURRENT_TASK_REGNUM) - - -#ifdef __ASSEMBLY__ - -/* Put a pointer to the current task structure into REG. */ -#define GET_CURRENT_TASK(reg) \ - GET_CURRENT_THREAD(reg); \ - ld.w TI_TASK[reg], reg - -#else /* !__ASSEMBLY__ */ - -/* A pointer to the current task. */ -register struct task_struct *current \ - __asm__ (macrology_stringify (CURRENT_TASK)); - -#endif /* __ASSEMBLY__ */ - - -#endif /* _V850_CURRENT_H */ diff --git a/include/asm-v850/delay.h b/include/asm-v850/delay.h deleted file mode 100644 index 6d028e6b2354..000000000000 --- a/include/asm-v850/delay.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * include/asm-v850/delay.h -- Delay routines, using a pre-computed - * "loops_per_second" value - * - * Copyright (C) 2001,03 NEC Corporation - * Copyright (C) 2001,03 Miles Bader - * Copyright (C) 1994 Hamish Macdonald - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - */ - -#ifndef __V850_DELAY_H__ -#define __V850_DELAY_H__ - -#include - -static inline void __delay(unsigned long loops) -{ - if (loops) - __asm__ __volatile__ ("1: add -1, %0; bnz 1b" - : "=r" (loops) : "0" (loops)); -} - -/* - * Use only for very small delays ( < 1 msec). Should probably use a - * lookup table, really, as the multiplications take much too long with - * short delays. This is a "reasonable" implementation, though (and the - * first constant multiplications gets optimized away if the delay is - * a constant) - */ - -extern unsigned long loops_per_jiffy; - -static inline void udelay(unsigned long usecs) -{ - register unsigned long full_loops, part_loops; - - full_loops = ((usecs * HZ) / 1000000) * loops_per_jiffy; - usecs %= (1000000 / HZ); - part_loops = (usecs * HZ * loops_per_jiffy) / 1000000; - - __delay(full_loops + part_loops); -} - -#endif /* __V850_DELAY_H__ */ diff --git a/include/asm-v850/device.h b/include/asm-v850/device.h deleted file mode 100644 index d8f9872b0e2d..000000000000 --- a/include/asm-v850/device.h +++ /dev/null @@ -1,7 +0,0 @@ -/* - * Arch specific extensions to struct device - * - * This file is released under the GPLv2 - */ -#include - diff --git a/include/asm-v850/div64.h b/include/asm-v850/div64.h deleted file mode 100644 index 6cd978cefb28..000000000000 --- a/include/asm-v850/div64.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-v850/dma-mapping.h b/include/asm-v850/dma-mapping.h deleted file mode 100644 index 1cc42c603a1b..000000000000 --- a/include/asm-v850/dma-mapping.h +++ /dev/null @@ -1,11 +0,0 @@ -#ifndef __V850_DMA_MAPPING_H__ -#define __V850_DMA_MAPPING_H__ - - -#ifdef CONFIG_PCI -#include -#else -#include -#endif - -#endif /* __V850_DMA_MAPPING_H__ */ diff --git a/include/asm-v850/dma.h b/include/asm-v850/dma.h deleted file mode 100644 index 2369849e2d0a..000000000000 --- a/include/asm-v850/dma.h +++ /dev/null @@ -1,18 +0,0 @@ -#ifndef __V850_DMA_H__ -#define __V850_DMA_H__ - -/* What should this be? */ -#define MAX_DMA_ADDRESS 0xFFFFFFFF - -/* reserve a DMA channel */ -extern int request_dma (unsigned int dmanr, const char * device_id); -/* release it again */ -extern void free_dma (unsigned int dmanr); - -#ifdef CONFIG_PCI -extern int isa_dma_bridge_buggy; -#else -#define isa_dma_bridge_buggy (0) -#endif - -#endif /* __V850_DMA_H__ */ diff --git a/include/asm-v850/elf.h b/include/asm-v850/elf.h deleted file mode 100644 index 28f5b176ff1a..000000000000 --- a/include/asm-v850/elf.h +++ /dev/null @@ -1,99 +0,0 @@ -#ifndef __V850_ELF_H__ -#define __V850_ELF_H__ - -/* - * ELF register definitions.. - */ - -#include -#include -#include - -typedef unsigned long elf_greg_t; - -#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct user_fpu_struct elf_fpregset_t; - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) \ - ((x)->e_machine == EM_V850 || (x)->e_machine == EM_CYGNUS_V850) - - -/* v850 relocation types. */ -#define R_V850_NONE 0 -#define R_V850_9_PCREL 1 -#define R_V850_22_PCREL 2 -#define R_V850_HI16_S 3 -#define R_V850_HI16 4 -#define R_V850_LO16 5 -#define R_V850_32 6 -#define R_V850_16 7 -#define R_V850_8 8 -#define R_V850_SDA_16_16_OFFSET 9 /* For ld.b, st.b, set1, clr1, - not1, tst1, movea, movhi */ -#define R_V850_SDA_15_16_OFFSET 10 /* For ld.w, ld.h, ld.hu, st.w, st.h */ -#define R_V850_ZDA_16_16_OFFSET 11 /* For ld.b, st.b, set1, clr1, - not1, tst1, movea, movhi */ -#define R_V850_ZDA_15_16_OFFSET 12 /* For ld.w, ld.h, ld.hu, st.w, st.h */ -#define R_V850_TDA_6_8_OFFSET 13 /* For sst.w, sld.w */ -#define R_V850_TDA_7_8_OFFSET 14 /* For sst.h, sld.h */ -#define R_V850_TDA_7_7_OFFSET 15 /* For sst.b, sld.b */ -#define R_V850_TDA_16_16_OFFSET 16 /* For set1, clr1, not1, tst1, - movea, movhi */ -#define R_V850_NUM 17 - - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_CLASS ELFCLASS32 -#ifdef __LITTLE_ENDIAN__ -#define ELF_DATA ELFDATA2LSB -#else -#define ELF_DATA ELFDATA2MSB -#endif -#define ELF_ARCH EM_V850 - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 - - -#define ELF_CORE_COPY_REGS(_dest,_regs) \ - memcpy((char *) &_dest, (char *) _regs, \ - sizeof(struct pt_regs)); - -/* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, - but it's not easy, and we've already done it here. */ - -#define ELF_HWCAP (0) - -/* This yields a string that ld.so will use to load implementation - specific libraries for optimization. This is more specific in - intent than poking at uname or /proc/cpuinfo. - - For the moment, we have only optimizations for the Intel generations, - but that could change... */ - -#define ELF_PLATFORM (NULL) - -#define ELF_PLAT_INIT(_r, load_addr) \ - do { \ - _r->gpr[0] = _r->gpr[1] = _r->gpr[2] = _r->gpr[3] = \ - _r->gpr[4] = _r->gpr[5] = _r->gpr[6] = _r->gpr[7] = \ - _r->gpr[8] = _r->gpr[9] = _r->gpr[10] = _r->gpr[11] = \ - _r->gpr[12] = _r->gpr[13] = _r->gpr[14] = _r->gpr[15] = \ - _r->gpr[16] = _r->gpr[17] = _r->gpr[18] = _r->gpr[19] = \ - _r->gpr[20] = _r->gpr[21] = _r->gpr[22] = _r->gpr[23] = \ - _r->gpr[24] = _r->gpr[25] = _r->gpr[26] = _r->gpr[27] = \ - _r->gpr[28] = _r->gpr[29] = _r->gpr[30] = _r->gpr[31] = \ - 0; \ - } while (0) - -#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT) - -#endif /* __V850_ELF_H__ */ diff --git a/include/asm-v850/emergency-restart.h b/include/asm-v850/emergency-restart.h deleted file mode 100644 index 108d8c48e42e..000000000000 --- a/include/asm-v850/emergency-restart.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_EMERGENCY_RESTART_H -#define _ASM_EMERGENCY_RESTART_H - -#include - -#endif /* _ASM_EMERGENCY_RESTART_H */ diff --git a/include/asm-v850/entry.h b/include/asm-v850/entry.h deleted file mode 100644 index d9df8ac48584..000000000000 --- a/include/asm-v850/entry.h +++ /dev/null @@ -1,113 +0,0 @@ -/* - * include/asm-v850/entry.h -- Definitions used by low-level trap handlers - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_ENTRY_H__ -#define __V850_ENTRY_H__ - - -#include -#include - - -/* These are special variables using by the kernel trap/interrupt code - to save registers in, at a time when there are no spare registers we - can use to do so, and we can't depend on the value of the stack - pointer. This means that they must be within a signed 16-bit - displacement of 0x00000000. */ - -#define KERNEL_VAR_SPACE_ADDR R0_RAM_ADDR - -#ifdef __ASSEMBLY__ -#define KERNEL_VAR(addr) addr[r0] -#else -#define KERNEL_VAR(addr) (*(volatile unsigned long *)(addr)) -#endif - -/* Kernel stack pointer, 4 bytes. */ -#define KSP_ADDR (KERNEL_VAR_SPACE_ADDR + 0) -#define KSP KERNEL_VAR (KSP_ADDR) -/* 1 if in kernel-mode, 0 if in user mode, 1 byte. */ -#define KM_ADDR (KERNEL_VAR_SPACE_ADDR + 4) -#define KM KERNEL_VAR (KM_ADDR) -/* Temporary storage for interrupt handlers, 4 bytes. */ -#define INT_SCRATCH_ADDR (KERNEL_VAR_SPACE_ADDR + 8) -#define INT_SCRATCH KERNEL_VAR (INT_SCRATCH_ADDR) -/* Where the stack-pointer is saved when jumping to various sorts of - interrupt handlers. ENTRY_SP is used by everything except NMIs, - which have their own location. Higher-priority NMIs can clobber the - value written by a lower priority NMI, since they can't be disabled, - but that's OK, because only NMI0 (the lowest-priority one) is allowed - to return. */ -#define ENTRY_SP_ADDR (KERNEL_VAR_SPACE_ADDR + 12) -#define ENTRY_SP KERNEL_VAR (ENTRY_SP_ADDR) -#define NMI_ENTRY_SP_ADDR (KERNEL_VAR_SPACE_ADDR + 16) -#define NMI_ENTRY_SP KERNEL_VAR (NMI_ENTRY_SP_ADDR) - -#ifdef CONFIG_RESET_GUARD -/* Used to detect unexpected resets (since the v850 has no MMU, any call - through a null pointer will jump to the reset vector). We detect - such resets by checking for a magic value, RESET_GUARD_ACTIVE, in - this location. Properly resetting the machine stores zero there, so - it shouldn't trigger the guard; the power-on value is uncertain, but - it's unlikely to be RESET_GUARD_ACTIVE. */ -#define RESET_GUARD_ADDR (KERNEL_VAR_SPACE_ADDR + 28) -#define RESET_GUARD KERNEL_VAR (RESET_GUARD_ADDR) -#define RESET_GUARD_ACTIVE 0xFAB4BEEF -#endif /* CONFIG_RESET_GUARD */ - -#ifdef CONFIG_V850E_HIGHRES_TIMER -#define HIGHRES_TIMER_SLOW_TICKS_ADDR (KERNEL_VAR_SPACE_ADDR + 32) -#define HIGHRES_TIMER_SLOW_TICKS KERNEL_VAR (HIGHRES_TIMER_SLOW_TICKS_ADDR) -#endif /* CONFIG_V850E_HIGHRES_TIMER */ - -#ifndef __ASSEMBLY__ - -#ifdef CONFIG_RESET_GUARD -/* Turn off reset guard, so that resetting the machine works normally. - This should be called in the various machine_halt, etc., functions. */ -static inline void disable_reset_guard (void) -{ - RESET_GUARD = 0; -} -#endif /* CONFIG_RESET_GUARD */ - -#endif /* !__ASSEMBLY__ */ - - -/* A `state save frame' is a struct pt_regs preceded by some extra space - suitable for a function call stack frame. */ - -/* Amount of room on the stack reserved for arguments and to satisfy the - C calling conventions, in addition to the space used by the struct - pt_regs that actually holds saved values. */ -#define STATE_SAVE_ARG_SPACE (6*4) /* Up to six arguments. */ - - -#ifdef __ASSEMBLY__ - -/* The size of a state save frame. */ -#define STATE_SAVE_SIZE (PT_SIZE + STATE_SAVE_ARG_SPACE) - -#else /* !__ASSEMBLY__ */ - -/* The size of a state save frame. */ -#define STATE_SAVE_SIZE (sizeof (struct pt_regs) + STATE_SAVE_ARG_SPACE) - -#endif /* __ASSEMBLY__ */ - - -/* Offset of the struct pt_regs in a state save frame. */ -#define STATE_SAVE_PT_OFFSET STATE_SAVE_ARG_SPACE - - -#endif /* __V850_ENTRY_H__ */ diff --git a/include/asm-v850/errno.h b/include/asm-v850/errno.h deleted file mode 100644 index 31c91df01205..000000000000 --- a/include/asm-v850/errno.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_ERRNO_H__ -#define __V850_ERRNO_H__ - -#include - -#endif /* __V850_ERRNO_H__ */ diff --git a/include/asm-v850/fb.h b/include/asm-v850/fb.h deleted file mode 100644 index c7df38030992..000000000000 --- a/include/asm-v850/fb.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef _ASM_FB_H_ -#define _ASM_FB_H_ -#include - -#define fb_pgprotect(...) do {} while (0) - -static inline int fb_is_primary_device(struct fb_info *info) -{ - return 0; -} - -#endif /* _ASM_FB_H_ */ diff --git a/include/asm-v850/fcntl.h b/include/asm-v850/fcntl.h deleted file mode 100644 index 3af4d56776dd..000000000000 --- a/include/asm-v850/fcntl.h +++ /dev/null @@ -1,11 +0,0 @@ -#ifndef __V850_FCNTL_H__ -#define __V850_FCNTL_H__ - -#define O_DIRECTORY 040000 /* must be a directory */ -#define O_NOFOLLOW 0100000 /* don't follow links */ -#define O_DIRECT 0200000 /* direct disk access hint - currently ignored */ -#define O_LARGEFILE 0400000 - -#include - -#endif /* __V850_FCNTL_H__ */ diff --git a/include/asm-v850/flat.h b/include/asm-v850/flat.h deleted file mode 100644 index 17f0ea566611..000000000000 --- a/include/asm-v850/flat.h +++ /dev/null @@ -1,133 +0,0 @@ -/* - * include/asm-v850/flat.h -- uClinux flat-format executables - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_FLAT_H__ -#define __V850_FLAT_H__ - -/* The amount by which a relocation can exceed the program image limits - without being regarded as an error. On the v850, the relocations of - some base-pointers can be offset by 0x8000 (to allow better usage of the - space offered by 16-bit signed offsets -- in most cases the offsets used - with such a base-pointer will be negative). */ - -#define flat_reloc_valid(reloc, size) ((reloc) <= (size + 0x8000)) - -#define flat_stack_align(sp) /* nothing needed */ -#define flat_argvp_envp_on_stack() 0 -#define flat_old_ram_flag(flags) (flags) -#define flat_set_persistent(relval, p) 0 - -/* We store the type of relocation in the top 4 bits of the `relval.' */ - -/* Convert a relocation entry into an address. */ -static inline unsigned long -flat_get_relocate_addr (unsigned long relval) -{ - return relval & 0x0fffffff; /* Mask out top 4-bits */ -} - -#define flat_v850_get_reloc_type(relval) ((relval) >> 28) - -#define FLAT_V850_R_32 0 /* Normal 32-bit reloc */ -#define FLAT_V850_R_HI16S_LO15 1 /* High 16-bits + signed 15-bit low field */ -#define FLAT_V850_R_HI16S_LO16 2 /* High 16-bits + signed 16-bit low field */ - -/* Extract the address to be relocated from the symbol reference at RP; - RELVAL is the raw relocation-table entry from which RP is derived. - For the v850, RP should always be half-word aligned. */ -static inline unsigned long flat_get_addr_from_rp (unsigned long *rp, - unsigned long relval, - unsigned long flags, - unsigned long *persistent) -{ - short *srp = (short *)rp; - - switch (flat_v850_get_reloc_type (relval)) - { - case FLAT_V850_R_32: - /* Simple 32-bit address. */ - return srp[0] | (srp[1] << 16); - - case FLAT_V850_R_HI16S_LO16: - /* The high and low halves of the address are in the 16 - bits at RP, and the 2nd word of the 32-bit instruction - following that, respectively. The low half is _signed_ - so we have to sign-extend it and add it to the upper - half instead of simply or-ing them together. - - Unlike most relocated address, this one is stored in - native (little-endian) byte-order to avoid problems with - trashing the low-order bit, so we have to convert to - network-byte-order before returning, as that's what the - caller expects. */ - return htonl ((srp[0] << 16) + srp[2]); - - case FLAT_V850_R_HI16S_LO15: - /* The high and low halves of the address are in the 16 - bits at RP, and the upper 15 bits of the 2nd word of the - 32-bit instruction following that, respectively. The - low half is _signed_ so we have to sign-extend it and - add it to the upper half instead of simply or-ing them - together. The lowest bit is always zero. - - Unlike most relocated address, this one is stored in - native (little-endian) byte-order to avoid problems with - trashing the low-order bit, so we have to convert to - network-byte-order before returning, as that's what the - caller expects. */ - return htonl ((srp[0] << 16) + (srp[2] & ~0x1)); - - default: - return ~0; /* bogus value */ - } -} - -/* Insert the address ADDR into the symbol reference at RP; - RELVAL is the raw relocation-table entry from which RP is derived. - For the v850, RP should always be half-word aligned. */ -static inline void flat_put_addr_at_rp (unsigned long *rp, unsigned long addr, - unsigned long relval) -{ - short *srp = (short *)rp; - - switch (flat_v850_get_reloc_type (relval)) { - case FLAT_V850_R_32: - /* Simple 32-bit address. */ - srp[0] = addr & 0xFFFF; - srp[1] = (addr >> 16); - break; - - case FLAT_V850_R_HI16S_LO16: - /* The high and low halves of the address are in the 16 - bits at RP, and the 2nd word of the 32-bit instruction - following that, respectively. The low half is _signed_ - so we must carry its sign bit to the upper half before - writing the upper half. */ - srp[0] = (addr >> 16) + ((addr >> 15) & 0x1); - srp[2] = addr & 0xFFFF; - break; - - case FLAT_V850_R_HI16S_LO15: - /* The high and low halves of the address are in the 16 - bits at RP, and the upper 15 bits of the 2nd word of the - 32-bit instruction following that, respectively. The - low half is _signed_ so we must carry its sign bit to - the upper half before writing the upper half. The - lowest bit we preserve from the existing instruction. */ - srp[0] = (addr >> 16) + ((addr >> 15) & 0x1); - srp[2] = (addr & 0xFFFE) | (srp[2] & 0x1); - break; - } -} - -#endif /* __V850_FLAT_H__ */ diff --git a/include/asm-v850/fpga85e2c.h b/include/asm-v850/fpga85e2c.h deleted file mode 100644 index 23aae666c718..000000000000 --- a/include/asm-v850/fpga85e2c.h +++ /dev/null @@ -1,82 +0,0 @@ -/* - * include/asm-v850/fpga85e2c.h -- Machine-dependent defs for - * FPGA implementation of V850E2/NA85E2C - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_FPGA85E2C_H__ -#define __V850_FPGA85E2C_H__ - -#include -#include - - -#define CPU_MODEL "v850e2/fpga85e2c" -#define CPU_MODEL_LONG "NEC V850E2/NA85E2C" -#define PLATFORM "fpga85e2c" -#define PLATFORM_LONG "NA85E2C FPGA implementation" - - -/* `external ram'. */ -#define ERAM_ADDR 0 -#define ERAM_SIZE 0x00100000 /* 1MB */ - - -/* FPGA specific control registers. */ - -/* Writing a non-zero value to FLGREG(0) will signal the controlling CPU - to stop execution. */ -#define FLGREG_ADDR(n) (0xFFE80100 + 2*(n)) -#define FLGREG(n) (*(volatile unsigned char *)FLGREG_ADDR (n)) -#define FLGREG_NUM 2 - -#define CSDEV_ADDR(n) (0xFFE80110 + 2*(n)) -#define CSDEV(n) (*(volatile unsigned char *)CSDEV_ADDR (n)) - - -/* Timer interrupts 0-3, interrupt at intervals from CLK/4096 to CLK/16384. */ -#define IRQ_RPU(n) (60 + (n)) -#define IRQ_RPU_NUM 4 - -/* For */ -#define NUM_CPU_IRQS 64 - - -/* General-purpose timer. */ -/* control/status register (can only be read/written via bit insns) */ -#define RPU_GTMC_ADDR 0xFFFFFB00 -#define RPU_GTMC (*(volatile unsigned char *)RPU_GTMC_ADDR) -#define RPU_GTMC_CE_BIT 7 /* clock enable (control) */ -#define RPU_GTMC_OV_BIT 6 /* overflow (status) */ -#define RPU_GTMC_CLK_BIT 1 /* 0 = .5 MHz CLK, 1 = 1 Mhz (control) */ -/* 32-bit count (8 least-significant bits are always zero). */ -#define RPU_GTM_ADDR 0xFFFFFB28 -#define RPU_GTM (*(volatile unsigned long *)RPU_GTMC_ADDR) - - -/* For */ -#define PAGE_OFFSET ERAM_ADDR /* minimum allocatable address */ - - -/* For */ -/* `R0 RAM', used for a few miscellaneous variables that must be accessible - using a load instruction relative to R0. The FPGA implementation - actually has no on-chip RAM, so we use part of main ram just after the - interrupt vectors. */ -#ifdef __ASSEMBLY__ -#define R0_RAM_ADDR lo(C_SYMBOL_NAME(_r0_ram)) -#else -extern char _r0_ram; -#define R0_RAM_ADDR ((unsigned long)&_r0_ram); -#endif - - -#endif /* __V850_FPGA85E2C_H__ */ diff --git a/include/asm-v850/futex.h b/include/asm-v850/futex.h deleted file mode 100644 index 6a332a9f099c..000000000000 --- a/include/asm-v850/futex.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_FUTEX_H -#define _ASM_FUTEX_H - -#include - -#endif diff --git a/include/asm-v850/gbus_int.h b/include/asm-v850/gbus_int.h deleted file mode 100644 index 0c4bce753c7e..000000000000 --- a/include/asm-v850/gbus_int.h +++ /dev/null @@ -1,97 +0,0 @@ -/* - * include/asm-v850/gbus_int.h -- Midas labs GBUS interrupt support - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_GBUS_INT_H__ -#define __V850_GBUS_INT_H__ - - -/* The GBUS interrupt interface has 32 interrupts shared among 4 - processor interrupts. The 32 GBUS interrupts are divided into two - sets of 16 each, for allocating among control registers, etc (there - are two of each control register, with bits 0-15 controlling an - interrupt each). */ - -/* The GBUS interrupts themselves. */ -#define IRQ_GBUS_INT(n) (GBUS_INT_BASE_IRQ + (n)) -#define IRQ_GBUS_INT_NUM 32 - -/* Control registers. */ -#define GBUS_INT_STATUS_ADDR(w) (GBUS_INT_BASE_ADDR + (w)*0x40) -#define GBUS_INT_STATUS(w) (*(volatile u16 *)GBUS_INT_STATUS_ADDR(w)) -#define GBUS_INT_CLEAR_ADDR(w) (GBUS_INT_BASE_ADDR + 0x10 + (w)*0x40) -#define GBUS_INT_CLEAR(w) (*(volatile u16 *)GBUS_INT_CLEAR_ADDR(w)) -#define GBUS_INT_EDGE_ADDR(w) (GBUS_INT_BASE_ADDR + 0x20 + (w)*0x40) -#define GBUS_INT_EDGE(w) (*(volatile u16 *)GBUS_INT_EDGE_ADDR(w)) -#define GBUS_INT_POLARITY_ADDR(w) (GBUS_INT_BASE_ADDR + 0x30 + (w)*0x40) -#define GBUS_INT_POLARITY(w) (*(volatile u16 *)GBUS_INT_POLARITY_ADDR(w)) -/* This allows enabling interrupt bits in word W for interrupt GINTn. */ -#define GBUS_INT_ENABLE_ADDR(w, n) \ - (GBUS_INT_BASE_ADDR + 0x100 + (w)*0x10 + (n)*0x20) -#define GBUS_INT_ENABLE(w, n) (*(volatile u16 *)GBUS_INT_ENABLE_ADDR(w, n)) - -/* Mapping between kernel interrupt numbers and hardware control regs/bits. */ -#define GBUS_INT_BITS_PER_WORD 16 -#define GBUS_INT_NUM_WORDS (IRQ_GBUS_INT_NUM / GBUS_INT_BITS_PER_WORD) -#define GBUS_INT_IRQ_WORD(irq) (((irq) - GBUS_INT_BASE_IRQ) >> 4) -#define GBUS_INT_IRQ_BIT(irq) (((irq) - GBUS_INT_BASE_IRQ) & 0xF) -#define GBUS_INT_IRQ_MASK(irq) (1 << GBUS_INT_IRQ_BIT(irq)) - - -/* Possible priorities for GBUS interrupts. */ -#define GBUS_INT_PRIORITY_HIGH 2 -#define GBUS_INT_PRIORITY_MEDIUM 4 -#define GBUS_INT_PRIORITY_LOW 6 - - -#ifndef __ASSEMBLY__ - -/* Enable interrupt handling for interrupt IRQ. */ -extern void gbus_int_enable_irq (unsigned irq); -/* Disable interrupt handling for interrupt IRQ. Note that any - interrupts received while disabled will be delivered once the - interrupt is enabled again, unless they are explicitly cleared using - `gbus_int_clear_pending_irq'. */ -extern void gbus_int_disable_irq (unsigned irq); -/* Return true if interrupt handling for interrupt IRQ is enabled. */ -extern int gbus_int_irq_enabled (unsigned irq); -/* Disable all GBUS irqs. */ -extern void gbus_int_disable_irqs (void); -/* Clear any pending interrupts for IRQ. */ -extern void gbus_int_clear_pending_irq (unsigned irq); -/* Return true if interrupt IRQ is pending (but disabled). */ -extern int gbus_int_irq_pending (unsigned irq); - - -struct gbus_int_irq_init { - const char *name; /* name of interrupt type */ - - /* Range of kernel irq numbers for this type: - BASE, BASE+INTERVAL, ..., BASE+INTERVAL*NUM */ - unsigned base, num, interval; - - unsigned priority; /* interrupt priority to assign */ -}; -struct hw_interrupt_type; /* fwd decl */ - -/* Initialize HW_IRQ_TYPES for GBUS irqs described in array - INITS (which is terminated by an entry with the name field == 0). */ -extern void gbus_int_init_irq_types (struct gbus_int_irq_init *inits, - struct hw_interrupt_type *hw_irq_types); - -/* Initialize GBUS interrupts. */ -extern void gbus_int_init_irqs (void); - -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_GBUS_INT_H__ */ diff --git a/include/asm-v850/hardirq.h b/include/asm-v850/hardirq.h deleted file mode 100644 index 04e20127c5af..000000000000 --- a/include/asm-v850/hardirq.h +++ /dev/null @@ -1,28 +0,0 @@ -#ifndef __V850_HARDIRQ_H__ -#define __V850_HARDIRQ_H__ - -#include -#include - -#include - -typedef struct { - unsigned int __softirq_pending; -} ____cacheline_aligned irq_cpustat_t; - -#include /* Standard mappings for irq_cpustat_t above */ - -#define HARDIRQ_BITS 8 - -/* - * The hardirq mask has to be large enough to have - * space for potentially all IRQ sources in the system - * nesting on a single CPU: - */ -#if (1 << HARDIRQ_BITS) < NR_IRQS -# error HARDIRQ_BITS is too low! -#endif - -void ack_bad_irq(unsigned int irq); - -#endif /* __V850_HARDIRQ_H__ */ diff --git a/include/asm-v850/highres_timer.h b/include/asm-v850/highres_timer.h deleted file mode 100644 index 486fb49ceab6..000000000000 --- a/include/asm-v850/highres_timer.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * include/asm-v850/highres_timer.h -- High resolution timing routines - * - * Copyright (C) 2001,03 NEC Electronics Corporation - * Copyright (C) 2001,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_HIGHRES_TIMER_H__ -#define __V850_HIGHRES_TIMER_H__ - -#ifndef __ASSEMBLY__ -#include -#endif - -#include - - -/* Frequency of the `slow ticks' (one tick each time the fast-tick - counter overflows). */ -#define HIGHRES_TIMER_SLOW_TICK_RATE 25 - -/* Which timer in the V850E `Timer D' we use. */ -#define HIGHRES_TIMER_TIMER_D_UNIT 3 - - -#ifndef __ASSEMBLY__ - -extern void highres_timer_start (void), highres_timer_stop (void); -extern void highres_timer_reset (void); -extern void highres_timer_read_ticks (u32 *slow_ticks, u32 *fast_ticks); -extern void highres_timer_ticks_to_timeval (u32 slow_ticks, u32 fast_ticks, - struct timeval *tv); -extern void highres_timer_read (struct timeval *tv); - -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_HIGHRES_TIMER_H__ */ diff --git a/include/asm-v850/hw_irq.h b/include/asm-v850/hw_irq.h deleted file mode 100644 index 043e94bb6bd8..000000000000 --- a/include/asm-v850/hw_irq.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __V850_HW_IRQ_H__ -#define __V850_HW_IRQ_H__ - -#endif /* __V850_HW_IRQ_H__ */ diff --git a/include/asm-v850/io.h b/include/asm-v850/io.h deleted file mode 100644 index cdad251fba9f..000000000000 --- a/include/asm-v850/io.h +++ /dev/null @@ -1,142 +0,0 @@ -/* - * include/asm-v850/io.h -- Misc I/O operations - * - * Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation - * Copyright (C) 2001,02,03,04,05 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_IO_H__ -#define __V850_IO_H__ - -#define IO_SPACE_LIMIT 0xFFFFFFFF - -#define readb(addr) \ - ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) -#define readw(addr) \ - ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) -#define readl(addr) \ - ({ unsigned long __v = (*(volatile unsigned long *) (addr)); __v; }) - -#define readb_relaxed(a) readb(a) -#define readw_relaxed(a) readw(a) -#define readl_relaxed(a) readl(a) - -#define writeb(val, addr) \ - (void)((*(volatile unsigned char *) (addr)) = (val)) -#define writew(val, addr) \ - (void)((*(volatile unsigned short *) (addr)) = (val)) -#define writel(val, addr) \ - (void)((*(volatile unsigned int *) (addr)) = (val)) - -#define __raw_readb readb -#define __raw_readw readw -#define __raw_readl readl -#define __raw_writeb writeb -#define __raw_writew writew -#define __raw_writel writel - -#define inb(addr) readb (addr) -#define inw(addr) readw (addr) -#define inl(addr) readl (addr) -#define outb(x, addr) ((void) writeb (x, addr)) -#define outw(x, addr) ((void) writew (x, addr)) -#define outl(x, addr) ((void) writel (x, addr)) - -#define inb_p(port) inb((port)) -#define outb_p(val, port) outb((val), (port)) -#define inw_p(port) inw((port)) -#define outw_p(val, port) outw((val), (port)) -#define inl_p(port) inl((port)) -#define outl_p(val, port) outl((val), (port)) - -static inline void insb (unsigned long port, void *dst, unsigned long count) -{ - unsigned char *p = dst; - while (count--) - *p++ = inb (port); -} -static inline void insw (unsigned long port, void *dst, unsigned long count) -{ - unsigned short *p = dst; - while (count--) - *p++ = inw (port); -} -static inline void insl (unsigned long port, void *dst, unsigned long count) -{ - unsigned long *p = dst; - while (count--) - *p++ = inl (port); -} - -static inline void -outsb (unsigned long port, const void *src, unsigned long count) -{ - const unsigned char *p = src; - while (count--) - outb (*p++, port); -} -static inline void -outsw (unsigned long port, const void *src, unsigned long count) -{ - const unsigned short *p = src; - while (count--) - outw (*p++, port); -} -static inline void -outsl (unsigned long port, const void *src, unsigned long count) -{ - const unsigned long *p = src; - while (count--) - outl (*p++, port); -} - - -/* Some places try to pass in an loff_t for PHYSADDR (?!), so we cast it to - long before casting it to a pointer to avoid compiler warnings. */ -#define ioremap(physaddr, size) ((void __iomem *)(unsigned long)(physaddr)) -#define iounmap(addr) ((void)0) - -#define ioremap_nocache(physaddr, size) ioremap (physaddr, size) -#define ioremap_writethrough(physaddr, size) ioremap (physaddr, size) -#define ioremap_fullcache(physaddr, size) ioremap (physaddr, size) - -#define ioread8(addr) readb (addr) -#define ioread16(addr) readw (addr) -#define ioread32(addr) readl (addr) -#define iowrite8(val, addr) writeb (val, addr) -#define iowrite16(val, addr) writew (val, addr) -#define iowrite32(val, addr) writel (val, addr) - -#define mmiowb() - -#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT) -#if 0 -/* This is really stupid; don't define it. */ -#define page_to_bus(page) page_to_phys (page) -#endif - -/* Conversion between virtual and physical mappings. */ -#define phys_to_virt(addr) ((void *)__phys_to_virt (addr)) -#define virt_to_phys(addr) ((unsigned long)__virt_to_phys (addr)) - -#define memcpy_fromio(dst, src, len) memcpy (dst, (void *)src, len) -#define memcpy_toio(dst, src, len) memcpy ((void *)dst, src, len) - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -#endif /* __V850_IO_H__ */ diff --git a/include/asm-v850/ioctl.h b/include/asm-v850/ioctl.h deleted file mode 100644 index b279fe06dfe5..000000000000 --- a/include/asm-v850/ioctl.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-v850/ioctls.h b/include/asm-v850/ioctls.h deleted file mode 100644 index 5313abd5f388..000000000000 --- a/include/asm-v850/ioctls.h +++ /dev/null @@ -1,84 +0,0 @@ -#ifndef __V850_IOCTLS_H__ -#define __V850_IOCTLS_H__ - -#include - -/* 0x54 is just a magic number to make these relatively unique ('T') */ - -#define TCGETS 0x5401 -#define TCSETS 0x5402 -#define TCSETSW 0x5403 -#define TCSETSF 0x5404 -#define TCGETA 0x5405 -#define TCSETA 0x5406 -#define TCSETAW 0x5407 -#define TCSETAF 0x5408 -#define TCSBRK 0x5409 -#define TCXONC 0x540A -#define TCFLSH 0x540B -#define TIOCEXCL 0x540C -#define TIOCNXCL 0x540D -#define TIOCSCTTY 0x540E -#define TIOCGPGRP 0x540F -#define TIOCSPGRP 0x5410 -#define TIOCOUTQ 0x5411 -#define TIOCSTI 0x5412 -#define TIOCGWINSZ 0x5413 -#define TIOCSWINSZ 0x5414 -#define TIOCMGET 0x5415 -#define TIOCMBIS 0x5416 -#define TIOCMBIC 0x5417 -#define TIOCMSET 0x5418 -#define TIOCGSOFTCAR 0x5419 -#define TIOCSSOFTCAR 0x541A -#define FIONREAD 0x541B -#define TIOCINQ FIONREAD -#define TIOCLINUX 0x541C -#define TIOCCONS 0x541D -#define TIOCGSERIAL 0x541E -#define TIOCSSERIAL 0x541F -#define TIOCPKT 0x5420 -#define FIONBIO 0x5421 -#define TIOCNOTTY 0x5422 -#define TIOCSETD 0x5423 -#define TIOCGETD 0x5424 -#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */ -#define TIOCSBRK 0x5427 /* BSD compatibility */ -#define TIOCCBRK 0x5428 /* BSD compatibility */ -#define TIOCGSID 0x5429 /* Return the session ID of FD */ -#define TCGETS2 _IOR('T',0x2A, struct termios2) -#define TCSETS2 _IOW('T',0x2B, struct termios2) -#define TCSETSW2 _IOW('T',0x2C, struct termios2) -#define TCSETSF2 _IOW('T',0x2D, struct termios2) -#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ -#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ - -#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */ -#define FIOCLEX 0x5451 -#define FIOASYNC 0x5452 -#define TIOCSERCONFIG 0x5453 -#define TIOCSERGWILD 0x5454 -#define TIOCSERSWILD 0x5455 -#define TIOCGLCKTRMIOS 0x5456 -#define TIOCSLCKTRMIOS 0x5457 -#define TIOCSERGSTRUCT 0x5458 /* For debugging only */ -#define TIOCSERGETLSR 0x5459 /* Get line status register */ -#define TIOCSERGETMULTI 0x545A /* Get multiport config */ -#define TIOCSERSETMULTI 0x545B /* Set multiport config */ - -#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */ -#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ -#define FIOQSIZE 0x545E - -/* Used for packet mode */ -#define TIOCPKT_DATA 0 -#define TIOCPKT_FLUSHREAD 1 -#define TIOCPKT_FLUSHWRITE 2 -#define TIOCPKT_STOP 4 -#define TIOCPKT_START 8 -#define TIOCPKT_NOSTOP 16 -#define TIOCPKT_DOSTOP 32 - -#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ - -#endif /* __V850_IOCTLS_H__ */ diff --git a/include/asm-v850/ipcbuf.h b/include/asm-v850/ipcbuf.h deleted file mode 100644 index d8cbe9886d95..000000000000 --- a/include/asm-v850/ipcbuf.h +++ /dev/null @@ -1,29 +0,0 @@ -#ifndef __V850E_IPCBUF_H__ -#define __V850E_IPCBUF_H__ - -/* - * The user_ipc_perm structure for v850e architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 32-bit mode_t and seq - * - 2 miscellaneous 32-bit values - */ - -struct ipc64_perm -{ - __kernel_key_t key; - __kernel_uid32_t uid; - __kernel_gid32_t gid; - __kernel_uid32_t cuid; - __kernel_gid32_t cgid; - __kernel_mode_t mode; - unsigned short __pad1; - unsigned short seq; - unsigned short __pad2; - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* __V850E_IPCBUF_H__ */ diff --git a/include/asm-v850/irq.h b/include/asm-v850/irq.h deleted file mode 100644 index 7d0d4cd1ce54..000000000000 --- a/include/asm-v850/irq.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * include/asm-v850/irq.h -- Machine interrupt handling - * - * Copyright (C) 2001,02,04 NEC Electronics Corporation - * Copyright (C) 2001,02,04 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_IRQ_H__ -#define __V850_IRQ_H__ - -#include - -/* Default NUM_MACH_IRQS. */ -#ifndef NUM_MACH_IRQS -#define NUM_MACH_IRQS NUM_CPU_IRQS -#endif - -/* NMIs have IRQ numbers from FIRST_NMI to FIRST_NMI+NUM_NMIS-1. */ -#define FIRST_NMI NUM_MACH_IRQS -#define IRQ_NMI(n) (FIRST_NMI + (n)) -/* v850 processors have 3 non-maskable interrupts. */ -#define NUM_NMIS 3 - -/* Includes both maskable and non-maskable irqs. */ -#define NR_IRQS (NUM_MACH_IRQS + NUM_NMIS) - - -#ifndef __ASSEMBLY__ - -struct pt_regs; -struct hw_interrupt_type; -struct irqaction; - -#define irq_canonicalize(irq) (irq) - -/* Initialize irq handling for IRQs. - BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL - to IRQ_TYPE. An IRQ_TYPE of 0 means to use a generic interrupt type. */ -extern void -init_irq_handlers (int base_irq, int num, int interval, - struct hw_interrupt_type *irq_type); - -/* Handle interrupt IRQ. REGS are the registers at the time of ther - interrupt. */ -extern unsigned int handle_irq (int irq, struct pt_regs *regs); - -#endif /* !__ASSEMBLY__ */ - -#endif /* __V850_IRQ_H__ */ diff --git a/include/asm-v850/irq_regs.h b/include/asm-v850/irq_regs.h deleted file mode 100644 index 3dd9c0b70270..000000000000 --- a/include/asm-v850/irq_regs.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-v850/kdebug.h b/include/asm-v850/kdebug.h deleted file mode 100644 index 6ece1b037665..000000000000 --- a/include/asm-v850/kdebug.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-v850/kmap_types.h b/include/asm-v850/kmap_types.h deleted file mode 100644 index 3288976b161f..000000000000 --- a/include/asm-v850/kmap_types.h +++ /dev/null @@ -1,19 +0,0 @@ -#ifndef __V850_KMAP_TYPES_H__ -#define __V850_KMAP_TYPES_H__ - -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_TYPE_NR -}; - -#endif /* __V850_KMAP_TYPES_H__ */ diff --git a/include/asm-v850/kvm.h b/include/asm-v850/kvm.h deleted file mode 100644 index 3f729b79febc..000000000000 --- a/include/asm-v850/kvm.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __LINUX_KVM_V850_H -#define __LINUX_KVM_V850_H - -/* v850 does not support KVM */ - -#endif diff --git a/include/asm-v850/linkage.h b/include/asm-v850/linkage.h deleted file mode 100644 index b6185d3cfe68..000000000000 --- a/include/asm-v850/linkage.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef __ASM_LINKAGE_H -#define __ASM_LINKAGE_H - -#ifdef __ASSEMBLY__ -#include -#endif - -#endif diff --git a/include/asm-v850/local.h b/include/asm-v850/local.h deleted file mode 100644 index 705148abe276..000000000000 --- a/include/asm-v850/local.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_LOCAL_H__ -#define __V850_LOCAL_H__ - -#include - -#endif /* __V850_LOCAL_H__ */ diff --git a/include/asm-v850/ma.h b/include/asm-v850/ma.h deleted file mode 100644 index 89e66473a176..000000000000 --- a/include/asm-v850/ma.h +++ /dev/null @@ -1,101 +0,0 @@ -/* - * include/asm-v850/ma.h -- V850E/MA series of cpu chips - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_MA_H__ -#define __V850_MA_H__ - -/* The MA series uses the V850E cpu core. */ -#include - - -/* For */ -/* We use on-chip RAM, for a few miscellaneous variables that must be - accessible using a load instruction relative to R0. The amount - varies between chip models, but there's always at least 4K, and it - should always start at FFFFC000. */ -#define R0_RAM_ADDR 0xFFFFC000 - - -/* MA series UART details. */ -#define V850E_UART_BASE_FREQ CPU_CLOCK_FREQ - -/* This is a function that gets called before configuring the UART. */ -#define V850E_UART_PRE_CONFIGURE ma_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void ma_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif - - -/* MA series timer C details. */ -#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600 - - -/* MA series timer D details. */ -#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540 -#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0) -#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2) -#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4) - -#define V850E_TIMER_D_BASE_FREQ CPU_CLOCK_FREQ - - -/* Port 0 */ -/* Direct I/O. Bits 0-7 are pins P00-P07. */ -#define MA_PORT0_IO_ADDR 0xFFFFF400 -#define MA_PORT0_IO (*(volatile u8 *)MA_PORT0_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define MA_PORT0_PM_ADDR 0xFFFFF420 -#define MA_PORT0_PM (*(volatile u8 *)MA_PORT0_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define MA_PORT0_PMC_ADDR 0xFFFFF440 -#define MA_PORT0_PMC (*(volatile u8 *)MA_PORT0_PMC_ADDR) -/* Port function control (for P04-P07, 0 = IRQ, 1 = DMARQ). */ -#define MA_PORT0_PFC_ADDR 0xFFFFF460 -#define MA_PORT0_PFC (*(volatile u8 *)MA_PORT0_PFC_ADDR) - -/* Port 1 */ -/* Direct I/O. Bits 0-3 are pins P10-P13. */ -#define MA_PORT1_IO_ADDR 0xFFFFF402 -#define MA_PORT1_IO (*(volatile u8 *)MA_PORT1_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define MA_PORT1_PM_ADDR 0xFFFFF420 -#define MA_PORT1_PM (*(volatile u8 *)MA_PORT1_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define MA_PORT1_PMC_ADDR 0xFFFFF442 -#define MA_PORT1_PMC (*(volatile u8 *)MA_PORT1_PMC_ADDR) - -/* Port 4 */ -/* Direct I/O. Bits 0-5 are pins P40-P45. */ -#define MA_PORT4_IO_ADDR 0xFFFFF408 -#define MA_PORT4_IO (*(volatile u8 *)MA_PORT4_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define MA_PORT4_PM_ADDR 0xFFFFF428 -#define MA_PORT4_PM (*(volatile u8 *)MA_PORT4_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define MA_PORT4_PMC_ADDR 0xFFFFF448 -#define MA_PORT4_PMC (*(volatile u8 *)MA_PORT4_PMC_ADDR) -/* Port function control (for serial interfaces, 0 = CSI, 1 = UART). */ -#define MA_PORT4_PFC_ADDR 0xFFFFF468 -#define MA_PORT4_PFC (*(volatile u8 *)MA_PORT4_PFC_ADDR) - - -#ifndef __ASSEMBLY__ - -/* Initialize MA chip interrupts. */ -extern void ma_init_irqs (void); - -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_MA_H__ */ diff --git a/include/asm-v850/ma1.h b/include/asm-v850/ma1.h deleted file mode 100644 index ede1f1de2b7a..000000000000 --- a/include/asm-v850/ma1.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * include/asm-v850/ma1.h -- V850E/MA1 cpu chip - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_MA1_H__ -#define __V850_MA1_H__ - -/* Inherit more generic details from MA series. */ -#include - - -#define CPU_MODEL "v850e/ma1" -#define CPU_MODEL_LONG "NEC V850E/MA1" - - -/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */ -#define IRQ_INTOV(n) (n) /* 0-3 */ -#define IRQ_INTOV_NUM 4 -#define IRQ_INTP(n) (0x4 + (n)) /* Pnnn (pin) interrupts */ -#define IRQ_INTP_NUM 24 -#define IRQ_INTCMD(n) (0x1c + (n)) /* interval timer interrupts 0-3 */ -#define IRQ_INTCMD_NUM 4 -#define IRQ_INTDMA(n) (0x20 + (n)) /* DMA interrupts 0-3 */ -#define IRQ_INTDMA_NUM 4 -#define IRQ_INTCSI(n) (0x24 + (n)*4)/* CSI 0-2 transmit/receive completion */ -#define IRQ_INTCSI_NUM 3 -#define IRQ_INTSER(n) (0x25 + (n)*4) /* UART 0-2 reception error */ -#define IRQ_INTSER_NUM 3 -#define IRQ_INTSR(n) (0x26 + (n)*4) /* UART 0-2 reception completion */ -#define IRQ_INTSR_NUM 3 -#define IRQ_INTST(n) (0x27 + (n)*4) /* UART 0-2 transmission completion */ -#define IRQ_INTST_NUM 3 - -#define NUM_CPU_IRQS 0x30 - - -/* The MA1 has a UART with 3 channels. */ -#define V850E_UART_NUM_CHANNELS 3 - - -#endif /* __V850_MA1_H__ */ diff --git a/include/asm-v850/machdep.h b/include/asm-v850/machdep.h deleted file mode 100644 index f1e3b8b91508..000000000000 --- a/include/asm-v850/machdep.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * include/asm-v850/machdep.h -- Machine-dependent definitions - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_MACHDEP_H__ -#define __V850_MACHDEP_H__ - - -/* chips */ -#ifdef CONFIG_V850E_MA1 -#include -#endif -#ifdef CONFIG_V850E_ME2 -#include -#endif -#ifdef CONFIG_V850E_TEG -#include -#endif - -/* These are both chips _and_ platforms, so put them in the middle... */ -#ifdef CONFIG_V850E2_ANNA -#include -#endif -#ifdef CONFIG_V850E_AS85EP1 -#include -#endif - -/* platforms */ -#ifdef CONFIG_RTE_CB_MA1 -#include -#endif -#ifdef CONFIG_RTE_CB_ME2 -#include -#endif -#ifdef CONFIG_RTE_CB_NB85E -#include -#endif -#ifdef CONFIG_V850E_SIM -#include -#endif -#ifdef CONFIG_V850E2_SIM85E2C -#include -#endif -#ifdef CONFIG_V850E2_SIM85E2S -#include -#endif -#ifdef CONFIG_V850E2_FPGA85E2C -#include -#endif - -#endif /* __V850_MACHDEP_H__ */ diff --git a/include/asm-v850/macrology.h b/include/asm-v850/macrology.h deleted file mode 100644 index 37abf874832c..000000000000 --- a/include/asm-v850/macrology.h +++ /dev/null @@ -1,17 +0,0 @@ -/* - * include/asm-v850/macrology.h -- Various useful CPP macros - * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#define macrology_paste(arg1, arg2) macrology_paste_1(arg1, arg2) -#define macrology_paste_1(arg1, arg2) arg1 ## arg2 -#define macrology_stringify(sym) macrology_stringify_1(sym) -#define macrology_stringify_1(sym) #sym diff --git a/include/asm-v850/me2.h b/include/asm-v850/me2.h deleted file mode 100644 index ac7c9ce0bdc1..000000000000 --- a/include/asm-v850/me2.h +++ /dev/null @@ -1,182 +0,0 @@ -/* - * include/asm-v850/me2.h -- V850E/ME2 cpu chip - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_ME2_H__ -#define __V850_ME2_H__ - -#include -#include - - -#define CPU_MODEL "v850e/me2" -#define CPU_MODEL_LONG "NEC V850E/ME2" - - -/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */ -#define IRQ_INTP(n) (n) /* Pnnn (pin) interrupts */ -#define IRQ_INTP_NUM 31 -#define IRQ_INTCMD(n) (0x31 + (n)) /* interval timer interrupts 0-3 */ -#define IRQ_INTCMD_NUM 4 -#define IRQ_INTDMA(n) (0x41 + (n)) /* DMA interrupts 0-3 */ -#define IRQ_INTDMA_NUM 4 -#define IRQ_INTUBTIRE(n) (0x49 + (n)*5)/* UARTB 0-1 reception error */ -#define IRQ_INTUBTIRE_NUM 2 -#define IRQ_INTUBTIR(n) (0x4a + (n)*5) /* UARTB 0-1 reception complete */ -#define IRQ_INTUBTIR_NUM 2 -#define IRQ_INTUBTIT(n) (0x4b + (n)*5) /* UARTB 0-1 transmission complete */ -#define IRQ_INTUBTIT_NUM 2 -#define IRQ_INTUBTIF(n) (0x4c + (n)*5) /* UARTB 0-1 FIFO trans. complete */ -#define IRQ_INTUBTIF_NUM 2 -#define IRQ_INTUBTITO(n) (0x4d + (n)*5) /* UARTB 0-1 reception timeout */ -#define IRQ_INTUBTITO_NUM 2 - -/* For */ -#define NUM_CPU_IRQS 0x59 /* V850E/ME2 */ - - -/* For */ -/* We use on-chip RAM, for a few miscellaneous variables that must be - accessible using a load instruction relative to R0. */ -#define R0_RAM_ADDR 0xFFFFB000 /* V850E/ME2 */ - - -/* V850E/ME2 UARTB details.*/ -#define V850E_UART_NUM_CHANNELS 2 -#define V850E_UARTB_BASE_FREQ (CPU_CLOCK_FREQ / 4) - -/* This is a function that gets called before configuring the UART. */ -#define V850E_UART_PRE_CONFIGURE me2_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void me2_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif /* __ASSEMBLY__ */ - - -/* V850E/ME2 timer C details. */ -#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600 - - -/* V850E/ME2 timer D details. */ -#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540 -#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0) -#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2) -#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4) - -#define V850E_TIMER_D_BASE_FREQ (CPU_CLOCK_FREQ / 2) - - -/* Select iRAM mode. */ -#define ME2_IRAMM_ADDR 0xFFFFF80A -#define ME2_IRAMM (*(volatile u8*)ME2_IRAMM_ADDR) - - -/* Interrupt edge-detection configuration. INTF(n) and INTR(n) are only - valid for n == 1, 2, or 5. */ -#define ME2_INTF_ADDR(n) (0xFFFFFC00 + (n) * 0x2) -#define ME2_INTF(n) (*(volatile u8*)ME2_INTF_ADDR(n)) -#define ME2_INTR_ADDR(n) (0xFFFFFC20 + (n) * 0x2) -#define ME2_INTR(n) (*(volatile u8*)ME2_INTR_ADDR(n)) -#define ME2_INTFAL_ADDR 0xFFFFFC10 -#define ME2_INTFAL (*(volatile u8*)ME2_INTFAL_ADDR) -#define ME2_INTRAL_ADDR 0xFFFFFC30 -#define ME2_INTRAL (*(volatile u8*)ME2_INTRAL_ADDR) -#define ME2_INTFDH_ADDR 0xFFFFFC16 -#define ME2_INTFDH (*(volatile u16*)ME2_INTFDH_ADDR) -#define ME2_INTRDH_ADDR 0xFFFFFC36 -#define ME2_INTRDH (*(volatile u16*)ME2_INTRDH_ADDR) -#define ME2_SESC_ADDR(n) (0xFFFFF609 + (n) * 0x10) -#define ME2_SESC(n) (*(volatile u8*)ME2_SESC_ADDR(n)) -#define ME2_SESA10_ADDR 0xFFFFF5AD -#define ME2_SESA10 (*(volatile u8*)ME2_SESA10_ADDR) -#define ME2_SESA11_ADDR 0xFFFFF5DD -#define ME2_SESA11 (*(volatile u8*)ME2_SESA11_ADDR) - - -/* Port 1 */ -/* Direct I/O. Bits 0-3 are pins P10-P13. */ -#define ME2_PORT1_IO_ADDR 0xFFFFF402 -#define ME2_PORT1_IO (*(volatile u8 *)ME2_PORT1_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define ME2_PORT1_PM_ADDR 0xFFFFF422 -#define ME2_PORT1_PM (*(volatile u8 *)ME2_PORT1_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define ME2_PORT1_PMC_ADDR 0xFFFFF442 -#define ME2_PORT1_PMC (*(volatile u8 *)ME2_PORT1_PMC_ADDR) -/* Port function control (for serial interfaces, 0 = CSI30, 1 = UARTB0 ). */ -#define ME2_PORT1_PFC_ADDR 0xFFFFF462 -#define ME2_PORT1_PFC (*(volatile u8 *)ME2_PORT1_PFC_ADDR) - -/* Port 2 */ -/* Direct I/O. Bits 0-3 are pins P20-P25. */ -#define ME2_PORT2_IO_ADDR 0xFFFFF404 -#define ME2_PORT2_IO (*(volatile u8 *)ME2_PORT2_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define ME2_PORT2_PM_ADDR 0xFFFFF424 -#define ME2_PORT2_PM (*(volatile u8 *)ME2_PORT2_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define ME2_PORT2_PMC_ADDR 0xFFFFF444 -#define ME2_PORT2_PMC (*(volatile u8 *)ME2_PORT2_PMC_ADDR) -/* Port function control (for serial interfaces, 0 = INTP2x, 1 = UARTB1 ). */ -#define ME2_PORT2_PFC_ADDR 0xFFFFF464 -#define ME2_PORT2_PFC (*(volatile u8 *)ME2_PORT2_PFC_ADDR) - -/* Port 5 */ -/* Direct I/O. Bits 0-5 are pins P50-P55. */ -#define ME2_PORT5_IO_ADDR 0xFFFFF40A -#define ME2_PORT5_IO (*(volatile u8 *)ME2_PORT5_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define ME2_PORT5_PM_ADDR 0xFFFFF42A -#define ME2_PORT5_PM (*(volatile u8 *)ME2_PORT5_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define ME2_PORT5_PMC_ADDR 0xFFFFF44A -#define ME2_PORT5_PMC (*(volatile u8 *)ME2_PORT5_PMC_ADDR) -/* Port function control (). */ -#define ME2_PORT5_PFC_ADDR 0xFFFFF46A -#define ME2_PORT5_PFC (*(volatile u8 *)ME2_PORT5_PFC_ADDR) - -/* Port 6 */ -/* Direct I/O. Bits 5-7 are pins P65-P67. */ -#define ME2_PORT6_IO_ADDR 0xFFFFF40C -#define ME2_PORT6_IO (*(volatile u8 *)ME2_PORT6_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define ME2_PORT6_PM_ADDR 0xFFFFF42C -#define ME2_PORT6_PM (*(volatile u8 *)ME2_PORT6_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define ME2_PORT6_PMC_ADDR 0xFFFFF44C -#define ME2_PORT6_PMC (*(volatile u8 *)ME2_PORT6_PMC_ADDR) -/* Port function control (). */ -#define ME2_PORT6_PFC_ADDR 0xFFFFF46C -#define ME2_PORT6_PFC (*(volatile u8 *)ME2_PORT6_PFC_ADDR) - -/* Port 7 */ -/* Direct I/O. Bits 2-7 are pins P72-P77. */ -#define ME2_PORT7_IO_ADDR 0xFFFFF40E -#define ME2_PORT7_IO (*(volatile u8 *)ME2_PORT7_IO_ADDR) -/* Port mode (for direct I/O, 0 = output, 1 = input). */ -#define ME2_PORT7_PM_ADDR 0xFFFFF42E -#define ME2_PORT7_PM (*(volatile u8 *)ME2_PORT7_PM_ADDR) -/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */ -#define ME2_PORT7_PMC_ADDR 0xFFFFF44E -#define ME2_PORT7_PMC (*(volatile u8 *)ME2_PORT7_PMC_ADDR) -/* Port function control (). */ -#define ME2_PORT7_PFC_ADDR 0xFFFFF46E -#define ME2_PORT7_PFC (*(volatile u8 *)ME2_PORT7_PFC_ADDR) - - -#ifndef __ASSEMBLY__ -/* Initialize V850E/ME2 chip interrupts. */ -extern void me2_init_irqs (void); -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_ME2_H__ */ diff --git a/include/asm-v850/mman.h b/include/asm-v850/mman.h deleted file mode 100644 index edbf6edbfb37..000000000000 --- a/include/asm-v850/mman.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef __V850_MMAN_H__ -#define __V850_MMAN_H__ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __V850_MMAN_H__ */ diff --git a/include/asm-v850/mmu.h b/include/asm-v850/mmu.h deleted file mode 100644 index 267768c66ef6..000000000000 --- a/include/asm-v850/mmu.h +++ /dev/null @@ -1,11 +0,0 @@ -/* Copyright (C) 2002, 2005, David McCullough */ - -#ifndef __V850_MMU_H__ -#define __V850_MMU_H__ - -typedef struct { - struct vm_list_struct *vmlist; - unsigned long end_brk; -} mm_context_t; - -#endif /* __V850_MMU_H__ */ diff --git a/include/asm-v850/mmu_context.h b/include/asm-v850/mmu_context.h deleted file mode 100644 index 01daacd5474e..000000000000 --- a/include/asm-v850/mmu_context.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef __V850_MMU_CONTEXT_H__ -#define __V850_MMU_CONTEXT_H__ - -#include - -#define destroy_context(mm) ((void)0) -#define init_new_context(tsk,mm) 0 -#define switch_mm(prev,next,tsk) ((void)0) -#define deactivate_mm(tsk,mm) do { } while (0) -#define activate_mm(prev,next) ((void)0) -#define enter_lazy_tlb(mm,tsk) ((void)0) - -#endif /* __V850_MMU_CONTEXT_H__ */ diff --git a/include/asm-v850/module.h b/include/asm-v850/module.h deleted file mode 100644 index 2c2f4944f09f..000000000000 --- a/include/asm-v850/module.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * include/asm-v850/module.h -- Architecture-specific module hooks - * - * Copyright (C) 2001,02,03,04 NEC Corporation - * Copyright (C) 2001,02,03,04 Miles Bader - * Copyright (C) 2001,03 Rusty Russell - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - * - * Derived in part from include/asm-ppc/module.h - */ - -#ifndef __V850_MODULE_H__ -#define __V850_MODULE_H__ - -#define MODULE_SYMBOL_PREFIX "_" - -struct v850_plt_entry -{ - /* Indirect jump instruction sequence (6-byte mov + 2-byte jr). */ - unsigned long tramp[2]; -}; - -struct mod_arch_specific -{ - /* Indices of PLT sections within module. */ - unsigned int core_plt_section, init_plt_section; -}; - -#define Elf_Shdr Elf32_Shdr -#define Elf_Sym Elf32_Sym -#define Elf_Ehdr Elf32_Ehdr - -/* Make empty sections for module_frob_arch_sections to expand. */ -#ifdef MODULE -asm(".section .plt,\"ax\",@nobits; .align 3; .previous"); -asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous"); -#endif - -/* We don't do exception tables. */ -struct exception_table_entry; -static inline const struct exception_table_entry * -search_extable(const struct exception_table_entry *first, - const struct exception_table_entry *last, - unsigned long value) -{ - return 0; -} -#define ARCH_HAS_SEARCH_EXTABLE -static inline void -sort_extable(struct exception_table_entry *start, - struct exception_table_entry *finish) -{ - /* nada */ -} -#define ARCH_HAS_SORT_EXTABLE - -#endif /* __V850_MODULE_H__ */ diff --git a/include/asm-v850/msgbuf.h b/include/asm-v850/msgbuf.h deleted file mode 100644 index ed07dbd01637..000000000000 --- a/include/asm-v850/msgbuf.h +++ /dev/null @@ -1,31 +0,0 @@ -#ifndef __V850_MSGBUF_H__ -#define __V850_MSGBUF_H__ - -/* - * The msqid64_ds structure for v850 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ - unsigned long __unused1; - __kernel_time_t msg_rtime; /* last msgrcv time */ - unsigned long __unused2; - __kernel_time_t msg_ctime; /* last change time */ - unsigned long __unused3; - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused4; - unsigned long __unused5; -}; - -#endif /* __V850_MSGBUF_H__ */ diff --git a/include/asm-v850/mutex.h b/include/asm-v850/mutex.h deleted file mode 100644 index 458c1f7fbc18..000000000000 --- a/include/asm-v850/mutex.h +++ /dev/null @@ -1,9 +0,0 @@ -/* - * Pull in the generic implementation for the mutex fastpath. - * - * TODO: implement optimized primitives instead, or leave the generic - * implementation in place, or pick the atomic_xchg() based generic - * implementation. (see asm-generic/mutex-xchg.h for details) - */ - -#include diff --git a/include/asm-v850/page.h b/include/asm-v850/page.h deleted file mode 100644 index f9de35d873fa..000000000000 --- a/include/asm-v850/page.h +++ /dev/null @@ -1,124 +0,0 @@ -/* - * include/asm-v850/page.h -- VM ops - * - * Copyright (C) 2001,02,03,05 NEC Electronics Corporation - * Copyright (C) 2001,02,03,05 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_PAGE_H__ -#define __V850_PAGE_H__ - -#include - - -#define PAGE_SHIFT 12 -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - - -/* - * PAGE_OFFSET -- the first address of the first page of memory. For archs with - * no MMU this corresponds to the first free page in physical memory (aligned - * on a page boundary). - */ -#ifndef PAGE_OFFSET -#define PAGE_OFFSET 0x0000000 -#endif - - -#ifndef __ASSEMBLY__ - -#define STRICT_MM_TYPECHECKS - -#define clear_page(page) memset ((void *)(page), 0, PAGE_SIZE) -#define copy_page(to, from) memcpy ((void *)(to), (void *)from, PAGE_SIZE) - -#define clear_user_page(addr, vaddr, page) \ - do { clear_page(addr); \ - flush_dcache_page(page); \ - } while (0) -#define copy_user_page(to, from, vaddr, page) \ - do { copy_page(to, from); \ - flush_dcache_page(page); \ - } while (0) - -#ifdef STRICT_MM_TYPECHECKS -/* - * These are used to make use of C type-checking.. - */ - -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pmd; } pmd_t; -typedef struct { unsigned long pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; -typedef struct page *pgtable_t; - -#define pte_val(x) ((x).pte) -#define pmd_val(x) ((x).pmd) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -#else /* !STRICT_MM_TYPECHECKS */ -/* - * .. while these make it easier on the compiler - */ - -typedef unsigned long pte_t; -typedef unsigned long pmd_t; -typedef unsigned long pgd_t; -typedef unsigned long pgprot_t; - -#define pte_val(x) (x) -#define pmd_val(x) (x) -#define pgd_val(x) (x) -#define pgprot_val(x) (x) - -#define __pte(x) (x) -#define __pmd(x) (x) -#define __pgd(x) (x) -#define __pgprot(x) (x) - -#endif /* STRICT_MM_TYPECHECKS */ - -#endif /* !__ASSEMBLY__ */ - - -/* No current v850 processor has virtual memory. */ -#define __virt_to_phys(addr) (addr) -#define __phys_to_virt(addr) (addr) - -#define virt_to_pfn(kaddr) (__virt_to_phys (kaddr) >> PAGE_SHIFT) -#define pfn_to_virt(pfn) __phys_to_virt ((pfn) << PAGE_SHIFT) - -#define MAP_NR(kaddr) \ - (((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT) -#define virt_to_page(kaddr) (mem_map + MAP_NR (kaddr)) -#define page_to_virt(page) \ - ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) - -#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT) -#define pfn_valid(pfn) ((pfn) < max_mapnr) - -#define virt_addr_valid(kaddr) \ - (((void *)(kaddr) >= (void *)PAGE_OFFSET) && MAP_NR (kaddr) < max_mapnr) - - -#define __pa(x) __virt_to_phys ((unsigned long)(x)) -#define __va(x) ((void *)__phys_to_virt ((unsigned long)(x))) - - -#include -#include - -#endif /* __V850_PAGE_H__ */ diff --git a/include/asm-v850/param.h b/include/asm-v850/param.h deleted file mode 100644 index 4391f5fe0204..000000000000 --- a/include/asm-v850/param.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * include/asm-v850/param.h -- Varions kernel parameters - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_PARAM_H__ -#define __V850_PARAM_H__ - -#define EXEC_PAGESIZE 4096 - -#ifndef NOGROUP -#define NOGROUP (-1) -#endif - -#define MAXHOSTNAMELEN 64 /* max length of hostname */ - -#ifdef __KERNEL__ -# define HZ CONFIG_HZ -# define USER_HZ 100 -# define CLOCKS_PER_SEC USER_HZ -#else -# define HZ 100 -#endif - -#endif /* __V850_PARAM_H__ */ diff --git a/include/asm-v850/pci.h b/include/asm-v850/pci.h deleted file mode 100644 index de2a7d0a81cc..000000000000 --- a/include/asm-v850/pci.h +++ /dev/null @@ -1,119 +0,0 @@ -/* - * include/asm-v850/pci.h -- PCI support - * - * Copyright (C) 2001,02,05 NEC Corporation - * Copyright (C) 2001,02,05 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_PCI_H__ -#define __V850_PCI_H__ - -/* Get any platform-dependent definitions. */ -#include - -#define pcibios_scan_all_fns(a, b) 0 - -/* Generic declarations. */ - -struct scatterlist; - -extern void pcibios_set_master (struct pci_dev *dev); - -/* `Grant' to PDEV the memory block at CPU_ADDR, for doing DMA. The - 32-bit PCI bus mastering address to use is returned. the device owns - this memory until either pci_unmap_single or pci_dma_sync_single_for_cpu is - performed. */ -extern dma_addr_t -pci_map_single (struct pci_dev *pdev, void *cpu_addr, size_t size, int dir); - -/* Return to the CPU the PCI DMA memory block previously `granted' to - PDEV, at DMA_ADDR. */ -extern void -pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, - int dir); - -/* Make physical memory consistent for a single streaming mode DMA - translation after a transfer. - - If you perform a pci_map_single() but wish to interrogate the - buffer using the cpu, yet do not wish to teardown the PCI dma - mapping, you must call this function before doing so. At the next - point you give the PCI dma address back to the card, you must first - perform a pci_dma_sync_for_device, and then the device again owns - the buffer. */ -extern void -pci_dma_sync_single_for_cpu (struct pci_dev *dev, dma_addr_t dma_addr, - size_t size, int dir); - -extern void -pci_dma_sync_single_for_device (struct pci_dev *dev, dma_addr_t dma_addr, - size_t size, int dir); - - -/* Do multiple DMA mappings at once. */ -extern int -pci_map_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, int dir); - -/* Unmap multiple DMA mappings at once. */ -extern void -pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, - int dir); - -/* SG-list versions of pci_dma_sync functions. */ -extern void -pci_dma_sync_sg_for_cpu (struct pci_dev *dev, - struct scatterlist *sg, int sg_len, - int dir); -extern void -pci_dma_sync_sg_for_device (struct pci_dev *dev, - struct scatterlist *sg, int sg_len, - int dir); - -#define pci_map_page(dev, page, offs, size, dir) \ - pci_map_single(dev, (page_address(page) + (offs)), size, dir) -#define pci_unmap_page(dev,addr,sz,dir) \ - pci_unmap_single(dev, addr, sz, dir) - -/* Test for pci_map_single or pci_map_page having generated an error. */ -static inline int -pci_dma_mapping_error (dma_addr_t dma_addr) -{ - return dma_addr == 0; -} - -/* Allocate and map kernel buffer using consistent mode DMA for PCI - device. Returns non-NULL cpu-view pointer to the buffer if - successful and sets *DMA_ADDR to the pci side dma address as well, - else DMA_ADDR is undefined. */ -extern void * -pci_alloc_consistent (struct pci_dev *pdev, size_t size, dma_addr_t *dma_addr); - -/* Free and unmap a consistent DMA buffer. CPU_ADDR and DMA_ADDR must - be values that were returned from pci_alloc_consistent. SIZE must be - the same as what as passed into pci_alloc_consistent. References to - the memory and mappings assosciated with CPU_ADDR or DMA_ADDR past - this call are illegal. */ -extern void -pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr, - dma_addr_t dma_addr); - -#ifdef CONFIG_PCI -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - *strat = PCI_DMA_BURST_INFINITY; - *strategy_parameter = ~0UL; -} -#endif - -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); -extern void pci_iounmap (struct pci_dev *dev, void __iomem *addr); - -#endif /* __V850_PCI_H__ */ diff --git a/include/asm-v850/percpu.h b/include/asm-v850/percpu.h deleted file mode 100644 index 755ac6522b63..000000000000 --- a/include/asm-v850/percpu.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef __V850_PERCPU_H__ -#define __V850_PERCPU_H__ - -#include - -/* This is a stupid hack to satisfy some grotty implicit include-file - dependency; basically, uses BUG_ON, which calls BUG, but - doesn't include the necessary headers to define it. In the twisted - festering mess of includes this must all be resolved somehow on other - platforms, but I haven't the faintest idea how, and don't care; here will - do, even though doesn't actually make any sense. */ -#include - -#endif /* __V850_PERCPU_H__ */ diff --git a/include/asm-v850/pgalloc.h b/include/asm-v850/pgalloc.h deleted file mode 100644 index b91eb2d02bfd..000000000000 --- a/include/asm-v850/pgalloc.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * include/asm-v850/pgalloc.h - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_PGALLOC_H__ -#define __V850_PGALLOC_H__ - -#include /* some crap code expects this */ - -/* ... and then, there was one. */ -#define check_pgt_cache() ((void)0) - -#endif /* __V850_PGALLOC_H__ */ diff --git a/include/asm-v850/pgtable.h b/include/asm-v850/pgtable.h deleted file mode 100644 index 1ea2a900f0f8..000000000000 --- a/include/asm-v850/pgtable.h +++ /dev/null @@ -1,59 +0,0 @@ -#ifndef __V850_PGTABLE_H__ -#define __V850_PGTABLE_H__ - -#include - -#include - - -#define pgd_present(pgd) (1) /* pages are always present on NO_MM */ -#define pgd_none(pgd) (0) -#define pgd_bad(pgd) (0) -#define pgd_clear(pgdp) ((void)0) - -#define pmd_offset(a, b) ((void *)0) - -#define kern_addr_valid(addr) (1) - - -#define __swp_type(x) (0) -#define __swp_offset(x) (0) -#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - -static inline int pte_file (pte_t pte) { return 0; } - - -/* These mean nothing to !CONFIG_MMU. */ -#define PAGE_NONE __pgprot(0) -#define PAGE_SHARED __pgprot(0) -#define PAGE_COPY __pgprot(0) -#define PAGE_READONLY __pgprot(0) -#define PAGE_KERNEL __pgprot(0) - - -/* - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc. When CONFIG_MMU is not defined, this - * should never actually be used, so just define it to something that's - * will hopefully cause a bus error if it is. - */ -#define ZERO_PAGE(vaddr) ((void *)0x87654321) - - -/* Some bogus code in procfs uses these; whatever. */ -#define VMALLOC_START 0 -#define VMALLOC_END (~0) - - -extern void paging_init (void); -#define swapper_pg_dir ((pgd_t *) 0) - -#define pgtable_cache_init() ((void)0) - - -extern unsigned int kobjsize(const void *objp); - - -#endif /* __V850_PGTABLE_H__ */ diff --git a/include/asm-v850/poll.h b/include/asm-v850/poll.h deleted file mode 100644 index 803cad0b9b59..000000000000 --- a/include/asm-v850/poll.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef __V850_POLL_H__ -#define __V850_POLL_H__ - -#define POLLWRNORM POLLOUT -#define POLLWRBAND 0x0100 - -#include - -#endif /* __V850_POLL_H__ */ diff --git a/include/asm-v850/posix_types.h b/include/asm-v850/posix_types.h deleted file mode 100644 index 7f403b765390..000000000000 --- a/include/asm-v850/posix_types.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * include/asm-v850/posix_types.h -- Kernel versions of standard types - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_POSIX_TYPES_H__ -#define __V850_POSIX_TYPES_H__ - -typedef unsigned long __kernel_ino_t; -typedef unsigned long long __kernel_ino64_t; -typedef unsigned int __kernel_mode_t; -typedef unsigned int __kernel_nlink_t; -typedef long __kernel_off_t; -typedef long long __kernel_loff_t; -typedef int __kernel_pid_t; -typedef unsigned short __kernel_ipc_pid_t; -typedef unsigned int __kernel_uid_t; -typedef unsigned int __kernel_gid_t; -typedef unsigned int __kernel_size_t; -typedef int __kernel_ssize_t; -typedef int __kernel_ptrdiff_t; -typedef long __kernel_time_t; -typedef long __kernel_suseconds_t; -typedef long __kernel_clock_t; -typedef int __kernel_timer_t; -typedef int __kernel_clockid_t; -typedef int __kernel_daddr_t; -typedef char * __kernel_caddr_t; -typedef unsigned short __kernel_uid16_t; -typedef unsigned short __kernel_gid16_t; -typedef unsigned int __kernel_uid32_t; -typedef unsigned int __kernel_gid32_t; - -/* Some bogus code depends on this; we don't care. */ -typedef __kernel_uid_t __kernel_old_uid_t; -typedef unsigned int __kernel_old_dev_t; - -typedef struct { - int val[2]; -} __kernel_fsid_t; - - -#if defined(__KERNEL__) - -/* We used to include here, which seems the right thing, but - it caused nasty include-file definition order problems. Removing the - include seems to work, so fingers crossed... */ - -#undef __FD_SET -#define __FD_SET(fd, fd_set) \ - __set_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits) -#undef __FD_CLR -#define __FD_CLR(fd, fd_set) \ - __clear_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits) -#undef __FD_ISSET -#define __FD_ISSET(fd, fd_set) \ - __test_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits) -#undef __FD_ZERO -#define __FD_ZERO(fd_set) \ - memset (fd_set, 0, sizeof (*(fd_set *)fd_set)) - -#endif /* defined(__KERNEL__) */ - -#endif /* __V850_POSIX_TYPES_H__ */ diff --git a/include/asm-v850/processor.h b/include/asm-v850/processor.h deleted file mode 100644 index 979e3467f9af..000000000000 --- a/include/asm-v850/processor.h +++ /dev/null @@ -1,120 +0,0 @@ -/* - * include/asm-v850/processor.h - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_PROCESSOR_H__ -#define __V850_PROCESSOR_H__ - -#ifndef __ASSEMBLY__ /* is not asm-safe. */ -#include -#endif - -#include -#include -#include - -/* Some code expects `segment' stuff to be defined here. */ -#include - - -/* - * The only places this is used seem to be horrible bletcherous kludges, - * so we just define it to be as large as possible. - */ -#define TASK_SIZE (0xFFFFFFFF) - -/* - * This decides where the kernel will search for a free chunk of vm - * space during mmap's. We won't be using it. - */ -#define TASK_UNMAPPED_BASE 0 - - -#ifndef __ASSEMBLY__ - - -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ __label__ _l; _l: &&_l;}) - -/* If you change this, you must change the associated assembly-languages - constants defined below, THREAD_*. */ -struct thread_struct { - /* kernel stack pointer (must be first field in structure) */ - unsigned long ksp; -}; - -#define INIT_THREAD { sizeof init_stack + (unsigned long)init_stack } - - -/* Do necessary setup to start up a newly executed thread. */ -static inline void start_thread (struct pt_regs *regs, - unsigned long pc, unsigned long usp) -{ - regs->pc = pc; - regs->gpr[GPR_SP] = usp; - regs->kernel_mode = 0; -} - -/* Free all resources held by a thread. */ -static inline void release_thread (struct task_struct *dead_task) -{ -} - -/* Prepare to copy thread state - unlazy all lazy status */ -#define prepare_to_copy(tsk) do { } while (0) - -extern int kernel_thread (int (*fn)(void *), void * arg, unsigned long flags); - -/* Free current thread data structures etc. */ -static inline void exit_thread (void) -{ -} - - -/* Return the registers saved during context-switch by the currently - not-running thread T. Note that this only includes some registers! - See entry.S for details. */ -#define thread_saved_regs(t) \ - ((struct pt_regs*)((t)->thread.ksp + STATE_SAVE_PT_OFFSET)) -/* Return saved (kernel) PC of a blocked thread. Actually, we return the - LP register, because the thread is actually blocked in switch_thread, - and we're interested in the PC it will _return_ to. */ -#define thread_saved_pc(t) (thread_saved_regs(t)->gpr[GPR_LP]) - - -unsigned long get_wchan (struct task_struct *p); - - -/* Return some info about the user process TASK. */ -#define task_tos(task) ((unsigned long)task_stack_page(task) + THREAD_SIZE) -#define task_pt_regs(task) ((struct pt_regs *)task_tos (task) - 1) -#define task_sp(task) (task_pt_regs (task)->gpr[GPR_SP]) -#define task_pc(task) (task_pt_regs (task)->pc) -/* Grotty old names for some. */ -#define KSTK_EIP(task) task_pc (task) -#define KSTK_ESP(task) task_sp (task) - - -#define cpu_relax() barrier() - - -#else /* __ASSEMBLY__ */ - -#define THREAD_KSP 0 - -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_PROCESSOR_H__ */ diff --git a/include/asm-v850/ptrace.h b/include/asm-v850/ptrace.h deleted file mode 100644 index 4f35cf2cd641..000000000000 --- a/include/asm-v850/ptrace.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * include/asm-v850/ptrace.h -- Access to CPU registers - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_PTRACE_H__ -#define __V850_PTRACE_H__ - - -/* v850 general purpose registers with special meanings. */ -#define GPR_ZERO 0 /* constant zero */ -#define GPR_ASM 1 /* reserved for assembler */ -#define GPR_SP 3 /* stack pointer */ -#define GPR_GP 4 /* global data pointer */ -#define GPR_TP 5 /* `text pointer' */ -#define GPR_EP 30 /* `element pointer' */ -#define GPR_LP 31 /* link pointer (current return address) */ - -/* These aren't official names, but they make some code more descriptive. */ -#define GPR_ARG0 6 -#define GPR_ARG1 7 -#define GPR_ARG2 8 -#define GPR_ARG3 9 -#define GPR_RVAL0 10 -#define GPR_RVAL1 11 -#define GPR_RVAL GPR_RVAL0 - -#define NUM_GPRS 32 - -/* v850 `system' registers. */ -#define SR_EIPC 0 -#define SR_EIPSW 1 -#define SR_FEPC 2 -#define SR_FEPSW 3 -#define SR_ECR 4 -#define SR_PSW 5 -#define SR_CTPC 16 -#define SR_CTPSW 17 -#define SR_DBPC 18 -#define SR_DBPSW 19 -#define SR_CTBP 20 -#define SR_DIR 21 -#define SR_ASID 23 - - -#ifndef __ASSEMBLY__ - -typedef unsigned long v850_reg_t; - -/* How processor state is stored on the stack during a syscall/signal. - If you change this structure, change the associated assembly-language - macros below too (PT_*)! */ -struct pt_regs -{ - /* General purpose registers. */ - v850_reg_t gpr[NUM_GPRS]; - - v850_reg_t pc; /* program counter */ - v850_reg_t psw; /* program status word */ - - /* Registers used by `callt' instruction: */ - v850_reg_t ctpc; /* saved program counter */ - v850_reg_t ctpsw; /* saved psw */ - v850_reg_t ctbp; /* base pointer for callt table */ - - char kernel_mode; /* 1 if in `kernel mode', 0 if user mode */ -}; - - -#define instruction_pointer(regs) ((regs)->pc) -#define profile_pc(regs) instruction_pointer(regs) -#define user_mode(regs) (!(regs)->kernel_mode) - -/* When a struct pt_regs is used to save user state for a system call in - the kernel, the system call is stored in the space for R0 (since it's - never used otherwise, R0 being a constant 0). Non-system-calls - simply store 0 there. */ -#define PT_REGS_SYSCALL(regs) (regs)->gpr[0] -#define PT_REGS_SET_SYSCALL(regs, val) ((regs)->gpr[0] = (val)) - -#endif /* !__ASSEMBLY__ */ - - -/* The number of bytes used to store each register. */ -#define _PT_REG_SIZE 4 - -/* Offset of a general purpose register in a struct pt_regs. */ -#define PT_GPR(num) ((num) * _PT_REG_SIZE) - -/* Offsets of various special registers & fields in a struct pt_regs. */ -#define PT_PC ((NUM_GPRS + 0) * _PT_REG_SIZE) -#define PT_PSW ((NUM_GPRS + 1) * _PT_REG_SIZE) -#define PT_CTPC ((NUM_GPRS + 2) * _PT_REG_SIZE) -#define PT_CTPSW ((NUM_GPRS + 3) * _PT_REG_SIZE) -#define PT_CTBP ((NUM_GPRS + 4) * _PT_REG_SIZE) -#define PT_KERNEL_MODE ((NUM_GPRS + 5) * _PT_REG_SIZE) - -/* Where the current syscall number is stashed; obviously only valid in - the kernel! */ -#define PT_CUR_SYSCALL PT_GPR(0) - -/* Size of struct pt_regs, including alignment. */ -#define PT_SIZE ((NUM_GPRS + 6) * _PT_REG_SIZE) - - -/* These are `magic' values for PTRACE_PEEKUSR that return info about where - a process is located in memory. */ -#define PT_TEXT_ADDR (PT_SIZE + 1) -#define PT_TEXT_LEN (PT_SIZE + 2) -#define PT_DATA_ADDR (PT_SIZE + 3) - - -#endif /* __V850_PTRACE_H__ */ diff --git a/include/asm-v850/resource.h b/include/asm-v850/resource.h deleted file mode 100644 index 4b9dcd44f8d1..000000000000 --- a/include/asm-v850/resource.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_RESOURCE_H__ -#define __V850_RESOURCE_H__ - -#include - -#endif /* __V850_RESOURCE_H__ */ diff --git a/include/asm-v850/rte_cb.h b/include/asm-v850/rte_cb.h deleted file mode 100644 index db9879f00aa7..000000000000 --- a/include/asm-v850/rte_cb.h +++ /dev/null @@ -1,78 +0,0 @@ -/* - * include/asm-v850/rte_cb.h -- Midas labs RTE-CB series of evaluation boards - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_RTE_CB_H__ -#define __V850_RTE_CB_H__ - - -/* The SRAM on the Mother-A motherboard. */ -#define MB_A_SRAM_ADDR GCS0_ADDR -#define MB_A_SRAM_SIZE 0x00200000 /* 2MB */ - - -#ifdef CONFIG_RTE_GBUS_INT -/* GBUS interrupt support. */ - -# include - -# define GBUS_INT_BASE_IRQ NUM_RTE_CB_IRQS -# define GBUS_INT_BASE_ADDR (GCS2_ADDR + 0x00006000) - -/* Some specific interrupts. */ -# define IRQ_MB_A_LAN IRQ_GBUS_INT(10) -# define IRQ_MB_A_PCI1(n) (IRQ_GBUS_INT(16) + (n)) -# define IRQ_MB_A_PCI1_NUM 4 -# define IRQ_MB_A_PCI2(n) (IRQ_GBUS_INT(20) + (n)) -# define IRQ_MB_A_PCI2_NUM 4 -# define IRQ_MB_A_EXT(n) (IRQ_GBUS_INT(24) + (n)) -# define IRQ_MB_A_EXT_NUM 4 -# define IRQ_MB_A_USB_OC(n) (IRQ_GBUS_INT(28) + (n)) -# define IRQ_MB_A_USB_OC_NUM 2 -# define IRQ_MB_A_PCMCIA_OC IRQ_GBUS_INT(30) - -/* We define NUM_MACH_IRQS to include extra interrupts from the GBUS. */ -# define NUM_MACH_IRQS (NUM_RTE_CB_IRQS + IRQ_GBUS_INT_NUM) - -#else /* !CONFIG_RTE_GBUS_INT */ - -# define NUM_MACH_IRQS NUM_RTE_CB_IRQS - -#endif /* CONFIG_RTE_GBUS_INT */ - - -#ifdef CONFIG_RTE_MB_A_PCI -/* Mother-A PCI bus support. */ - -# include - -/* These are the base addresses used for allocating device address - space. 512K of the motherboard SRAM is in the same space, so we have - to be careful not to let it be allocated. */ -# define PCIBIOS_MIN_MEM (MB_A_PCI_MEM_ADDR + 0x80000) -# define PCIBIOS_MIN_IO MB_A_PCI_IO_ADDR - -/* As we don't really support PCI DMA to cpu memory, and use bounce-buffers - instead, perversely enough, this becomes always true! */ -# define pci_dma_supported(dev, mask) 1 -# define pcibios_assign_all_busses() 1 - -#endif /* CONFIG_RTE_MB_A_PCI */ - - -#ifndef __ASSEMBLY__ -extern void rte_cb_early_init (void); -extern void rte_cb_init_irqs (void); -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_RTE_CB_H__ */ diff --git a/include/asm-v850/rte_ma1_cb.h b/include/asm-v850/rte_ma1_cb.h deleted file mode 100644 index bd3162ab9844..000000000000 --- a/include/asm-v850/rte_ma1_cb.h +++ /dev/null @@ -1,128 +0,0 @@ -/* - * include/asm-v850/rte_ma1_cb.h -- Midas labs RTE-V850/MA1-CB board - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_RTE_MA1_CB_H__ -#define __V850_RTE_MA1_CB_H__ - -#include /* Common defs for Midas RTE-CB boards. */ - - -#define PLATFORM "rte-v850e/ma1-cb" -#define PLATFORM_LONG "Midas lab RTE-V850E/MA1-CB" - -#define CPU_CLOCK_FREQ 50000000 /* 50MHz */ - -/* 1MB of onboard SRAM. Note that the monitor ROM uses parts of this - for its own purposes, so care must be taken. Some address lines are - not decoded, so the SRAM area is mirrored every 1MB from 0x400000 to - 0x800000 (exclusive). */ -#define SRAM_ADDR 0x00400000 -#define SRAM_SIZE 0x00100000 /* 1MB */ - -/* 32MB of onbard SDRAM. */ -#define SDRAM_ADDR 0x00800000 -#define SDRAM_SIZE 0x02000000 /* 32MB */ - - -/* CPU addresses of GBUS memory spaces. */ -#define GCS0_ADDR 0x05000000 /* GCS0 - Common SRAM (2MB) */ -#define GCS0_SIZE 0x00200000 /* 2MB */ -#define GCS1_ADDR 0x06000000 /* GCS1 - Flash ROM (8MB) */ -#define GCS1_SIZE 0x00800000 /* 8MB */ -#define GCS2_ADDR 0x07900000 /* GCS2 - I/O registers */ -#define GCS2_SIZE 0x00400000 /* 4MB */ -#define GCS5_ADDR 0x04000000 /* GCS5 - PCI bus space */ -#define GCS5_SIZE 0x01000000 /* 16MB */ -#define GCS6_ADDR 0x07980000 /* GCS6 - PCI control registers */ -#define GCS6_SIZE 0x00000200 /* 512B */ - - -/* For */ -#define PAGE_OFFSET SRAM_ADDR - - -/* The GBUS GINT0 - GINT3 interrupts are connected to the INTP000 - INTP011 - pins on the CPU. These are shared among the GBUS interrupts. */ -#define IRQ_GINT(n) IRQ_INTP(n) -#define IRQ_GINT_NUM 4 - -/* Used by to derive NUM_MACH_IRQS. */ -#define NUM_RTE_CB_IRQS NUM_CPU_IRQS - - -#ifdef CONFIG_ROM_KERNEL -/* Kernel is in ROM, starting at address 0. */ - -#define INTV_BASE 0 - -#else /* !CONFIG_ROM_KERNEL */ - -#ifdef CONFIG_RTE_CB_MULTI -/* Using RAM kernel with ROM monitor for Multi debugger. */ - -/* The chip's real interrupt vectors are in ROM, but they jump to a - secondary interrupt vector table in RAM. */ -#define INTV_BASE 0x004F8000 - -/* Scratch memory used by the ROM monitor, which shouldn't be used by - linux (except for the alternate interrupt vector area, defined - above). */ -#define MON_SCRATCH_ADDR 0x004F8000 -#define MON_SCRATCH_SIZE 0x00008000 /* 32KB */ - -#else /* !CONFIG_RTE_CB_MULTI */ -/* Using RAM-kernel. Assume some sort of boot-loader got us loaded at - address 0. */ - -#define INTV_BASE 0 - -#endif /* CONFIG_RTE_CB_MULTI */ - -#endif /* CONFIG_ROM_KERNEL */ - - -/* Some misc. on-board devices. */ - -/* Seven-segment LED display (two digits). Write-only. */ -#define LED_ADDR(n) (0x07802000 + (n)) -#define LED(n) (*(volatile unsigned char *)LED_ADDR(n)) -#define LED_NUM_DIGITS 2 - - -/* Override the basic MA uart pre-initialization so that we can - initialize extra stuff. */ -#undef V850E_UART_PRE_CONFIGURE /* should be defined by */ -#define V850E_UART_PRE_CONFIGURE rte_ma1_cb_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void rte_ma1_cb_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif - -/* This board supports RTS/CTS for the on-chip UART, but only for channel 0. */ - -/* CTS for UART channel 0 is pin P43 (bit 3 of port 4). */ -#define V850E_UART_CTS(chan) ((chan) == 0 ? !(MA_PORT4_IO & 0x8) : 1) -/* RTS for UART channel 0 is pin P42 (bit 2 of port 4). */ -#define V850E_UART_SET_RTS(chan, val) \ - do { \ - if (chan == 0) { \ - unsigned old = MA_PORT4_IO; \ - if (val) \ - MA_PORT4_IO = old & ~0x4; \ - else \ - MA_PORT4_IO = old | 0x4; \ - } \ - } while (0) - - -#endif /* __V850_RTE_MA1_CB_H__ */ diff --git a/include/asm-v850/rte_mb_a_pci.h b/include/asm-v850/rte_mb_a_pci.h deleted file mode 100644 index 41ac185ca9cd..000000000000 --- a/include/asm-v850/rte_mb_a_pci.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * include/asm-v850/mb_a_pci.h -- PCI support for Midas lab RTE-MOTHER-A board - * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_MB_A_PCI_H__ -#define __V850_MB_A_PCI_H__ - - -#define MB_A_PCI_MEM_ADDR GCS5_ADDR -#define MB_A_PCI_MEM_SIZE (GCS5_SIZE / 2) -#define MB_A_PCI_IO_ADDR (GCS5_ADDR + MB_A_PCI_MEM_SIZE) -#define MB_A_PCI_IO_SIZE (GCS5_SIZE / 2) -#define MB_A_PCI_REG_BASE_ADDR GCS6_ADDR - -#define MB_A_PCI_PCICR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x4) -#define MB_A_PCI_PCICR (*(volatile u16 *)MB_A_PCI_PCICR_ADDR) -#define MB_A_PCI_PCISR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x6) -#define MB_A_PCI_PCISR (*(volatile u16 *)MB_A_PCI_PCISR_ADDR) -#define MB_A_PCI_PCILTR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xD) -#define MB_A_PCI_PCILTR (*(volatile u8 *)MB_A_PCI_PCILTR_ADDR) -#define MB_A_PCI_PCIBAR0_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x10) -#define MB_A_PCI_PCIBAR0 (*(volatile u32 *)MB_A_PCI_PCIBAR0_ADDR) -#define MB_A_PCI_PCIBAR1_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x14) -#define MB_A_PCI_PCIBAR1 (*(volatile u32 *)MB_A_PCI_PCIBAR1_ADDR) -#define MB_A_PCI_PCIBAR2_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x18) -#define MB_A_PCI_PCIBAR2 (*(volatile u32 *)MB_A_PCI_PCIBAR2_ADDR) -#define MB_A_PCI_VENDOR_ID_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x2C) -#define MB_A_PCI_VENDOR_ID (*(volatile u16 *)MB_A_PCI_VENDOR_ID_ADDR) -#define MB_A_PCI_DEVICE_ID_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x2E) -#define MB_A_PCI_DEVICE_ID (*(volatile u16 *)MB_A_PCI_DEVICE_ID_ADDR) -#define MB_A_PCI_DMRR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x9C) -#define MB_A_PCI_DMRR (*(volatile u32 *)MB_A_PCI_DMRR_ADDR) -#define MB_A_PCI_DMLBAM_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xA0) -#define MB_A_PCI_DMLBAM (*(volatile u32 *)MB_A_PCI_DMLBAM_ADDR) -#define MB_A_PCI_DMLBAI_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xA4) -#define MB_A_PCI_DMLBAI (*(volatile u32 *)MB_A_PCI_DMLBAI_ADDR) -#define MB_A_PCI_PCIPBAM_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xA8) -#define MB_A_PCI_PCIPBAM (*(volatile u32 *)MB_A_PCI_PCIPBAM_ADDR) -/* `PCI Configuration Address Register for Direct Master to PCI IO/CFG' */ -#define MB_A_PCI_DMCFGA_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xAC) -#define MB_A_PCI_DMCFGA (*(volatile u32 *)MB_A_PCI_DMCFGA_ADDR) -/* `PCI Permanent Configuration ID Register' */ -#define MB_A_PCI_PCIHIDR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xF0) -#define MB_A_PCI_PCIHIDR (*(volatile u32 *)MB_A_PCI_PCIHIDR_ADDR) - - -#endif /* __V850_MB_A_PCI_H__ */ diff --git a/include/asm-v850/rte_me2_cb.h b/include/asm-v850/rte_me2_cb.h deleted file mode 100644 index 9922c85c85a8..000000000000 --- a/include/asm-v850/rte_me2_cb.h +++ /dev/null @@ -1,202 +0,0 @@ -/* - * include/asm-v850/rte_me2_cb.h -- Midas labs RTE-V850E/ME2-CB board - * - * Copyright (C) 2001,02,03 NEC Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_RTE_ME2_CB_H__ -#define __V850_RTE_ME2_CB_H__ - -#include /* Common defs for Midas RTE-CB boards. */ - - -#define PLATFORM "rte-v850e/me2-cb" -#define PLATFORM_LONG "Midas lab RTE-V850E/ME2-CB" - -#define CPU_CLOCK_FREQ 150000000 /* 150MHz */ -#define FIXED_BOGOMIPS 50 - -/* 32MB of onbard SDRAM. */ -#define SDRAM_ADDR 0x00800000 -#define SDRAM_SIZE 0x02000000 /* 32MB */ - - -/* CPU addresses of GBUS memory spaces. */ -#define GCS0_ADDR 0x04000000 /* GCS0 - Common SRAM (2MB) */ -#define GCS0_SIZE 0x00800000 /* 8MB */ -#define GCS1_ADDR 0x04800000 /* GCS1 - Flash ROM (8MB) */ -#define GCS1_SIZE 0x00800000 /* 8MB */ -#define GCS2_ADDR 0x07000000 /* GCS2 - I/O registers */ -#define GCS2_SIZE 0x00800000 /* 8MB */ -#define GCS5_ADDR 0x08000000 /* GCS5 - PCI bus space */ -#define GCS5_SIZE 0x02000000 /* 32MB */ -#define GCS6_ADDR 0x07800000 /* GCS6 - PCI control registers */ -#define GCS6_SIZE 0x00800000 /* 8MB */ - - -/* For */ -#define PAGE_OFFSET SDRAM_ADDR - - -#ifdef CONFIG_ROM_KERNEL -/* Kernel is in ROM, starting at address 0. */ - -#define INTV_BASE 0 -#define ROOT_FS_IMAGE_RW 0 - -#else /* !CONFIG_ROM_KERNEL */ -/* Using RAM-kernel. Assume some sort of boot-loader got us loaded at - address 0. */ - -#define INTV_BASE 0 -#define ROOT_FS_IMAGE_RW 1 - -#endif /* CONFIG_ROM_KERNEL */ - - -/* Some misc. on-board devices. */ - -/* Seven-segment LED display (four digits). */ -#define LED_ADDR(n) (0x0FE02000 + (n)) -#define LED(n) (*(volatile unsigned char *)LED_ADDR(n)) -#define LED_NUM_DIGITS 4 - - -/* On-board PIC. */ - -#define CB_PIC_BASE_ADDR 0x0FE04000 - -#define CB_PIC_INT0M_ADDR (CB_PIC_BASE_ADDR + 0x00) -#define CB_PIC_INT0M (*(volatile u16 *)CB_PIC_INT0M_ADDR) -#define CB_PIC_INT1M_ADDR (CB_PIC_BASE_ADDR + 0x10) -#define CB_PIC_INT1M (*(volatile u16 *)CB_PIC_INT1M_ADDR) -#define CB_PIC_INTR_ADDR (CB_PIC_BASE_ADDR + 0x20) -#define CB_PIC_INTR (*(volatile u16 *)CB_PIC_INTR_ADDR) -#define CB_PIC_INTEN_ADDR (CB_PIC_BASE_ADDR + 0x30) -#define CB_PIC_INTEN (*(volatile u16 *)CB_PIC_INTEN_ADDR) - -#define CB_PIC_INT0EN 0x0001 -#define CB_PIC_INT1EN 0x0002 -#define CB_PIC_INT0SEL 0x0080 - -/* The PIC interrupts themselves. */ -#define CB_PIC_BASE_IRQ NUM_CPU_IRQS -#define IRQ_CB_PIC_NUM 10 - -/* Some specific CB_PIC interrupts. */ -#define IRQ_CB_EXTTM0 (CB_PIC_BASE_IRQ + 0) -#define IRQ_CB_EXTSIO (CB_PIC_BASE_IRQ + 1) -#define IRQ_CB_TOVER (CB_PIC_BASE_IRQ + 2) -#define IRQ_CB_GINT0 (CB_PIC_BASE_IRQ + 3) -#define IRQ_CB_USB (CB_PIC_BASE_IRQ + 4) -#define IRQ_CB_LANC (CB_PIC_BASE_IRQ + 5) -#define IRQ_CB_USB_VBUS_ON (CB_PIC_BASE_IRQ + 6) -#define IRQ_CB_USB_VBUS_OFF (CB_PIC_BASE_IRQ + 7) -#define IRQ_CB_EXTTM1 (CB_PIC_BASE_IRQ + 8) -#define IRQ_CB_EXTTM2 (CB_PIC_BASE_IRQ + 9) - -/* The GBUS GINT1 - GINT3 (note, not GINT0!) interrupts are connected to - the INTP65 - INTP67 pins on the CPU. These are shared among the GBUS - interrupts. */ -#define IRQ_GINT(n) IRQ_INTP((n) + 9) /* 0 is unused! */ -#define IRQ_GINT_NUM 4 /* 0 is unused! */ - -/* The shared interrupt line from the PIC is connected to CPU pin INTP23. */ -#define IRQ_CB_PIC IRQ_INTP(4) /* P23 */ - -/* Used by to derive NUM_MACH_IRQS. */ -#define NUM_RTE_CB_IRQS (NUM_CPU_IRQS + IRQ_CB_PIC_NUM) - - -#ifndef __ASSEMBLY__ -struct cb_pic_irq_init { - const char *name; /* name of interrupt type */ - - /* Range of kernel irq numbers for this type: - BASE, BASE+INTERVAL, ..., BASE+INTERVAL*NUM */ - unsigned base, num, interval; - - unsigned priority; /* interrupt priority to assign */ -}; -struct hw_interrupt_type; /* fwd decl */ - -/* Enable interrupt handling for interrupt IRQ. */ -extern void cb_pic_enable_irq (unsigned irq); -/* Disable interrupt handling for interrupt IRQ. Note that any interrupts - received while disabled will be delivered once the interrupt is enabled - again, unless they are explicitly cleared using `cb_pic_clear_pending_irq'. */ -extern void cb_pic_disable_irq (unsigned irq); -/* Initialize HW_IRQ_TYPES for PIC irqs described in array INITS (which is - terminated by an entry with the name field == 0). */ -extern void cb_pic_init_irq_types (struct cb_pic_irq_init *inits, - struct hw_interrupt_type *hw_irq_types); -/* Initialize PIC interrupts. */ -extern void cb_pic_init_irqs (void); -#endif /* __ASSEMBLY__ */ - - -/* TL16C550C on board UART see also asm/serial.h */ -#define CB_UART_BASE 0x0FE08000 -#define CB_UART_REG_GAP 0x10 -#define CB_UART_CLOCK 0x16000000 - -/* CompactFlash setting */ -#define CB_CF_BASE 0x0FE0C000 -#define CB_CF_CCR_ADDR (CB_CF_BASE+0x200) -#define CB_CF_CCR (*(volatile u8 *)CB_CF_CCR_ADDR) -#define CB_CF_REG0_ADDR (CB_CF_BASE+0x1000) -#define CB_CF_REG0 (*(volatile u16 *)CB_CF_REG0_ADDR) -#define CB_CF_STS0_ADDR (CB_CF_BASE+0x1004) -#define CB_CF_STS0 (*(volatile u16 *)CB_CF_STS0_ADDR) -#define CB_PCATA_BASE (CB_CF_BASE+0x800) -#define CB_IDE_BASE (CB_CF_BASE+0x9F0) -#define CB_IDE_CTRL (CB_CF_BASE+0xBF6) -#define CB_IDE_REG_OFFS 0x1 - - -/* SMSC LAN91C111 setting */ -#if defined(CONFIG_SMC91111) -#define CB_LANC_BASE 0x0FE10300 -#define CONFIG_SMC16BITONLY -#define ETH0_ADDR CB_LANC_BASE -#define ETH0_IRQ IRQ_CB_LANC -#endif /* CONFIG_SMC16BITONLY */ - - -#undef V850E_UART_PRE_CONFIGURE -#define V850E_UART_PRE_CONFIGURE rte_me2_cb_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void rte_me2_cb_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif /* __ASSEMBLY__ */ - -/* This board supports RTS/CTS for the on-chip UART, but only for channel 0. */ - -/* CTS for UART channel 0 is pin P22 (bit 2 of port 2). */ -#define V850E_UART_CTS(chan) ((chan) == 0 ? !(ME2_PORT2_IO & 0x4) : 1) -/* RTS for UART channel 0 is pin P21 (bit 1 of port 2). */ -#define V850E_UART_SET_RTS(chan, val) \ - do { \ - if (chan == 0) { \ - unsigned old = ME2_PORT2_IO; \ - if (val) \ - ME2_PORT2_IO = old & ~0x2; \ - else \ - ME2_PORT2_IO = old | 0x2; \ - } \ - } while (0) - - -#ifndef __ASSEMBLY__ -extern void rte_me2_cb_init_irqs (void); -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_RTE_ME2_CB_H__ */ diff --git a/include/asm-v850/rte_nb85e_cb.h b/include/asm-v850/rte_nb85e_cb.h deleted file mode 100644 index f56591cad90a..000000000000 --- a/include/asm-v850/rte_nb85e_cb.h +++ /dev/null @@ -1,111 +0,0 @@ -/* - * include/asm-v850/rte_nb85e_cb.h -- Midas labs RTE-V850/NB85E-CB board - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_RTE_NB85E_CB_H__ -#define __V850_RTE_NB85E_CB_H__ - -#include /* Common defs for Midas RTE-CB boards. */ - - -#define PLATFORM "rte-v850e/nb85e-cb" -#define PLATFORM_LONG "Midas lab RTE-V850E/NB85E-CB" - -#define CPU_CLOCK_FREQ 50000000 /* 50MHz */ - -/* 1MB of onboard SRAM. Note that the monitor ROM uses parts of this - for its own purposes, so care must be taken. */ -#define SRAM_ADDR 0x03C00000 -#define SRAM_SIZE 0x00100000 /* 1MB */ - -/* 16MB of onbard SDRAM. */ -#define SDRAM_ADDR 0x01000000 -#define SDRAM_SIZE 0x01000000 /* 16MB */ - - -/* CPU addresses of GBUS memory spaces. */ -#define GCS0_ADDR 0x00400000 /* GCS0 - Common SRAM (2MB) */ -#define GCS0_SIZE 0x00400000 /* 4MB */ -#define GCS1_ADDR 0x02000000 /* GCS1 - Flash ROM (8MB) */ -#define GCS1_SIZE 0x00800000 /* 8MB */ -#define GCS2_ADDR 0x03900000 /* GCS2 - I/O registers */ -#define GCS2_SIZE 0x00080000 /* 512KB */ -#define GCS3_ADDR 0x02800000 /* GCS3 - EXT-bus: memory space */ -#define GCS3_SIZE 0x00800000 /* 8MB */ -#define GCS4_ADDR 0x03A00000 /* GCS4 - EXT-bus: I/O space */ -#define GCS4_SIZE 0x00200000 /* 2MB */ -#define GCS5_ADDR 0x00800000 /* GCS5 - PCI bus space */ -#define GCS5_SIZE 0x00800000 /* 8MB */ -#define GCS6_ADDR 0x03980000 /* GCS6 - PCI control registers */ -#define GCS6_SIZE 0x00010000 /* 64KB */ - - -/* The GBUS GINT0 - GINT3 interrupts are connected to CPU interrupts 10-12. - These are shared among the GBUS interrupts. */ -#define IRQ_GINT(n) (10 + (n)) -#define IRQ_GINT_NUM 3 - -/* Used by to derive NUM_MACH_IRQS. */ -#define NUM_RTE_CB_IRQS NUM_CPU_IRQS - - -#ifdef CONFIG_ROM_KERNEL -/* Kernel is in ROM, starting at address 0. */ - -#define INTV_BASE 0 - -#else /* !CONFIG_ROM_KERNEL */ -/* We're using the ROM monitor. */ - -/* The chip's real interrupt vectors are in ROM, but they jump to a - secondary interrupt vector table in RAM. */ -#define INTV_BASE 0x03CF8000 - -/* Scratch memory used by the ROM monitor, which shouldn't be used by - linux (except for the alternate interrupt vector area, defined - above). */ -#define MON_SCRATCH_ADDR 0x03CE8000 -#define MON_SCRATCH_SIZE 0x00018000 /* 96KB */ - -#endif /* CONFIG_ROM_KERNEL */ - - -/* Some misc. on-board devices. */ - -/* Seven-segment LED display (two digits). Write-only. */ -#define LED_ADDR(n) (0x03802000 + (n)) -#define LED(n) (*(volatile unsigned char *)LED_ADDR(n)) -#define LED_NUM_DIGITS 4 - - -/* Override the basic TEG UART pre-initialization so that we can - initialize extra stuff. */ -#undef V850E_UART_PRE_CONFIGURE /* should be defined by */ -#define V850E_UART_PRE_CONFIGURE rte_nb85e_cb_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void rte_nb85e_cb_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif - -/* This board supports RTS/CTS for the on-chip UART. */ - -/* CTS is pin P00. */ -#define V850E_UART_CTS(chan) (! (TEG_PORT0_IO & 0x1)) -/* RTS is pin P02. */ -#define V850E_UART_SET_RTS(chan, val) \ - do { \ - unsigned old = TEG_PORT0_IO; \ - TEG_PORT0_IO = val ? (old & ~0x4) : (old | 0x4); \ - } while (0) - - -#endif /* __V850_RTE_NB85E_CB_H__ */ diff --git a/include/asm-v850/scatterlist.h b/include/asm-v850/scatterlist.h deleted file mode 100644 index 02d27b3fb061..000000000000 --- a/include/asm-v850/scatterlist.h +++ /dev/null @@ -1,31 +0,0 @@ -/* - * include/asm-v850/scatterlist.h - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SCATTERLIST_H__ -#define __V850_SCATTERLIST_H__ - -#include - -struct scatterlist { -#ifdef CONFIG_DEBUG_SG - unsigned long sg_magic; -#endif - unsigned long page_link; - unsigned offset; - dma_addr_t dma_address; - unsigned length; -}; - -#define ISA_DMA_THRESHOLD (~0UL) - -#endif /* __V850_SCATTERLIST_H__ */ diff --git a/include/asm-v850/sections.h b/include/asm-v850/sections.h deleted file mode 100644 index e0238253a0d0..000000000000 --- a/include/asm-v850/sections.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_SECTIONS_H__ -#define __V850_SECTIONS_H__ - -#include - -#endif /* __V850_SECTIONS_H__ */ diff --git a/include/asm-v850/segment.h b/include/asm-v850/segment.h deleted file mode 100644 index 5e2b15dcf3d9..000000000000 --- a/include/asm-v850/segment.h +++ /dev/null @@ -1,36 +0,0 @@ -#ifndef __V850_SEGMENT_H__ -#define __V850_SEGMENT_H__ - - -#ifndef __ASSEMBLY__ - -typedef unsigned long mm_segment_t; /* domain register */ - -#endif /* !__ASSEMBLY__ */ - - -#define __KERNEL_CS 0x0 -#define __KERNEL_DS 0x0 - -#define __USER_CS 0x1 -#define __USER_DS 0x1 - -#define KERNEL_DS __KERNEL_DS -#define KERNEL_CS __KERNEL_CS -#define USER_DS __USER_DS -#define USER_CS __USER_CS - -#define segment_eq(a,b) ((a) == (b)) - -#define get_ds() (KERNEL_DS) -#define get_fs() (USER_DS) - -#define set_fs(seg) ((void)(seg)) - - -#define copy_segments(task, mm) ((void)((void)(task), (mm))) -#define release_segments(mm) ((void)(mm)) -#define forget_segments() ((void)0) - - -#endif /* __V850_SEGMENT_H__ */ diff --git a/include/asm-v850/semaphore.h b/include/asm-v850/semaphore.h deleted file mode 100644 index d9b2034ed1d2..000000000000 --- a/include/asm-v850/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-v850/sembuf.h b/include/asm-v850/sembuf.h deleted file mode 100644 index 1622231a8b85..000000000000 --- a/include/asm-v850/sembuf.h +++ /dev/null @@ -1,25 +0,0 @@ -#ifndef __V850_SEMBUF_H__ -#define __V850_SEMBUF_H__ - -/* - * The semid64_ds structure for v850 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ - unsigned long __unused1; - __kernel_time_t sem_ctime; /* last change time */ - unsigned long __unused2; - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* __V850_SEMBUF_H__ */ diff --git a/include/asm-v850/serial.h b/include/asm-v850/serial.h deleted file mode 100644 index 36d8f4cbbf39..000000000000 --- a/include/asm-v850/serial.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1999 by Ralf Baechle - * Copyright (C) 1999, 2000 Silicon Graphics, Inc. - */ - -#ifdef CONFIG_RTE_CB_ME2 - -#include - -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) - -#define irq_cannonicalize(x) (x) -#define BASE_BAUD 250000 /* (16MHz / (16 * 38400)) * 9600 */ -#define SERIAL_PORT_DFNS \ - { 0, BASE_BAUD, CB_UART_BASE, IRQ_CB_EXTSIO, STD_COM_FLAGS }, - -/* Redefine UART register offsets. */ -#undef UART_RX -#undef UART_TX -#undef UART_DLL -#undef UART_TRG -#undef UART_DLM -#undef UART_IER -#undef UART_FCTR -#undef UART_IIR -#undef UART_FCR -#undef UART_EFR -#undef UART_LCR -#undef UART_MCR -#undef UART_LSR -#undef UART_MSR -#undef UART_SCR -#undef UART_EMSR - -#define UART_RX (0 * CB_UART_REG_GAP) -#define UART_TX (0 * CB_UART_REG_GAP) -#define UART_DLL (0 * CB_UART_REG_GAP) -#define UART_TRG (0 * CB_UART_REG_GAP) -#define UART_DLM (1 * CB_UART_REG_GAP) -#define UART_IER (1 * CB_UART_REG_GAP) -#define UART_FCTR (1 * CB_UART_REG_GAP) -#define UART_IIR (2 * CB_UART_REG_GAP) -#define UART_FCR (2 * CB_UART_REG_GAP) -#define UART_EFR (2 * CB_UART_REG_GAP) -#define UART_LCR (3 * CB_UART_REG_GAP) -#define UART_MCR (4 * CB_UART_REG_GAP) -#define UART_LSR (5 * CB_UART_REG_GAP) -#define UART_MSR (6 * CB_UART_REG_GAP) -#define UART_SCR (7 * CB_UART_REG_GAP) -#define UART_EMSR (7 * CB_UART_REG_GAP) - -#endif /* CONFIG_RTE_CB_ME2 */ diff --git a/include/asm-v850/setup.h b/include/asm-v850/setup.h deleted file mode 100644 index c48a9b97d05b..000000000000 --- a/include/asm-v850/setup.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _V850_SETUP_H -#define _V850_SETUP_H - -#define COMMAND_LINE_SIZE 512 - -#endif /* __SETUP_H */ diff --git a/include/asm-v850/shmbuf.h b/include/asm-v850/shmbuf.h deleted file mode 100644 index 3d085c9c418e..000000000000 --- a/include/asm-v850/shmbuf.h +++ /dev/null @@ -1,42 +0,0 @@ -#ifndef __V850_SHMBUF_H__ -#define __V850_SHMBUF_H__ - -/* - * The shmid64_ds structure for v850 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ - unsigned long __unused1; - __kernel_time_t shm_dtime; /* last detach time */ - unsigned long __unused2; - __kernel_time_t shm_ctime; /* last change time */ - unsigned long __unused3; - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused4; - unsigned long __unused5; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* __V850_SHMBUF_H__ */ diff --git a/include/asm-v850/shmparam.h b/include/asm-v850/shmparam.h deleted file mode 100644 index 7dcb6739073e..000000000000 --- a/include/asm-v850/shmparam.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_SHMPARAM_H__ -#define __V850_SHMPARAM_H__ - -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ - -#endif /* __V850_SHMPARAM_H__ */ diff --git a/include/asm-v850/sigcontext.h b/include/asm-v850/sigcontext.h deleted file mode 100644 index e0890f6f4bc9..000000000000 --- a/include/asm-v850/sigcontext.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * include/asm-v850/sigcontext.h -- Signal contexts - * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SIGCONTEXT_H__ -#define __V850_SIGCONTEXT_H__ - -#include - -struct sigcontext -{ - struct pt_regs regs; - unsigned long oldmask; -}; - -#endif /* __V850_SIGCONTEXT_H__ */ diff --git a/include/asm-v850/siginfo.h b/include/asm-v850/siginfo.h deleted file mode 100644 index 7eb94703dce0..000000000000 --- a/include/asm-v850/siginfo.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_SIGINFO_H__ -#define __V850_SIGINFO_H__ - -#include - -#endif /* __V850_SIGINFO_H__ */ diff --git a/include/asm-v850/signal.h b/include/asm-v850/signal.h deleted file mode 100644 index a38df0834bbf..000000000000 --- a/include/asm-v850/signal.h +++ /dev/null @@ -1,168 +0,0 @@ -#ifndef __V850_SIGNAL_H__ -#define __V850_SIGNAL_H__ - -#include - -/* Avoid too many header ordering problems. */ -struct siginfo; - - -#ifdef __KERNEL__ - -/* Most things should be clean enough to redefine this at will, if care - is taken to make libc match. */ -#define _NSIG 64 -#define _NSIG_BPW 32 -#define _NSIG_WORDS (_NSIG / _NSIG_BPW) - -typedef unsigned long old_sigset_t; /* at least 32 bits */ - -typedef struct { - unsigned long sig[_NSIG_WORDS]; -} sigset_t; - -#else /* !__KERNEL__ */ - -/* Here we must cater to libcs that poke about in kernel headers. */ - -#define NSIG 32 -typedef unsigned long sigset_t; - -#endif /* __KERNEL__ */ - - -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 -#define SIGBUS 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGUSR1 10 -#define SIGSEGV 11 -#define SIGUSR2 12 -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGSTKFLT 16 -#define SIGCHLD 17 -#define SIGCONT 18 -#define SIGSTOP 19 -#define SIGTSTP 20 -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGURG 23 -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGIO 29 -#define SIGPOLL SIGIO -/* -#define SIGLOST 29 -*/ -#define SIGPWR 30 -#define SIGSYS 31 -#define SIGUNUSED 31 - -/* These should not be considered constants from userland. */ -#define SIGRTMIN 32 -#define SIGRTMAX _NSIG - -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - -#define SA_RESTORER 0x04000000 - -/* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - -#define MINSIGSTKSZ 2048 -#define SIGSTKSZ 8192 - -#include - -#ifdef __KERNEL__ - -struct old_sigaction { - __sighandler_t sa_handler; - old_sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -}; - -struct sigaction { - __sighandler_t sa_handler; - unsigned long sa_flags; - void (*sa_restorer)(void); - sigset_t sa_mask; /* mask last for extensibility */ -}; - -struct k_sigaction { - struct sigaction sa; -}; - -#else /* !__KERNEL__ */ - -/* Here we must cater to libcs that poke about in kernel headers. */ - -struct sigaction { - union { - __sighandler_t _sa_handler; - void (*_sa_sigaction)(int, struct siginfo *, void *); - } _u; - sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -}; - -#define sa_handler _u._sa_handler -#define sa_sigaction _u._sa_sigaction - -#endif /* __KERNEL__ */ - - -typedef struct sigaltstack { - void *ss_sp; - int ss_flags; - size_t ss_size; -} stack_t; - -#ifdef __KERNEL__ - -#include -#undef __HAVE_ARCH_SIG_BITOPS - -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - -#endif /* __KERNEL__ */ - -#endif /* __V850_SIGNAL_H__ */ diff --git a/include/asm-v850/sim.h b/include/asm-v850/sim.h deleted file mode 100644 index 026932d476cd..000000000000 --- a/include/asm-v850/sim.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * include/asm-v850/sim.h -- Machine-dependent defs for GDB v850e simulator - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SIM_H__ -#define __V850_SIM_H__ - - -#define CPU_ARCH "v850e" -#define CPU_MODEL "v850e" -#define CPU_MODEL_LONG "NEC V850E" -#define PLATFORM "gdb/v850e" -#define PLATFORM_LONG "GDB V850E simulator" - - -/* We use a weird value for RAM, not just 0, for testing purposes. - These must match the values used in the linker script. */ -#define RAM_ADDR 0x8F000000 -#define RAM_SIZE 0x03000000 - - -/* For */ -#define PAGE_OFFSET RAM_ADDR - - -/* For */ -/* `R0 RAM', used for a few miscellaneous variables that must be - accessible using a load instruction relative to R0. On real - processors, this usually is on-chip RAM, but here we just - choose an arbitrary address that meets the above constraint. */ -#define R0_RAM_ADDR 0xFFFFF000 - - -/* For */ -#define NUM_CPU_IRQS 6 - - -#endif /* __V850_SIM_H__ */ diff --git a/include/asm-v850/sim85e2.h b/include/asm-v850/sim85e2.h deleted file mode 100644 index 8b4d6974066c..000000000000 --- a/include/asm-v850/sim85e2.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * include/asm-v850/sim85e2.h -- Machine-dependent defs for - * V850E2 RTL simulator - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SIM85E2_H__ -#define __V850_SIM85E2_H__ - - -#include /* Based on V850E2 core. */ - - -/* Various memory areas supported by the simulator. - These should match the corresponding definitions in the linker script. */ - -/* `instruction RAM'; instruction fetches are much faster from IRAM than - from DRAM. */ -#define IRAM_ADDR 0 -#define IRAM_SIZE 0x00100000 /* 1MB */ -/* `data RAM', below and contiguous with the I/O space. - Data fetches are much faster from DRAM than from IRAM. */ -#define DRAM_ADDR 0xfff00000 -#define DRAM_SIZE 0x000ff000 /* 1020KB */ -/* `external ram'. Unlike the above RAM areas, this memory is cached, - so both instruction and data fetches should be (mostly) fast -- - however, currently only write-through caching is supported, so writes - to ERAM will be slow. */ -#define ERAM_ADDR 0x00100000 -#define ERAM_SIZE 0x07f00000 /* 127MB (max) */ -/* Dynamic RAM; uses memory controller. */ -#define SDRAM_ADDR 0x10000000 -#define SDRAM_SIZE 0x01000000 /* 16MB */ - - -/* Simulator specific control registers. */ -/* NOTHAL controls whether the simulator will stop at a `halt' insn. */ -#define SIM85E2_NOTHAL_ADDR 0xffffff22 -#define SIM85E2_NOTHAL (*(volatile u8 *)SIM85E2_NOTHAL_ADDR) -/* The simulator will stop N cycles after N is written to SIMFIN. */ -#define SIM85E2_SIMFIN_ADDR 0xffffff24 -#define SIM85E2_SIMFIN (*(volatile u16 *)SIM85E2_SIMFIN_ADDR) - - -/* For */ -#define NUM_CPU_IRQS 64 - - -/* For */ -#define PAGE_OFFSET SDRAM_ADDR - - -/* For */ -/* `R0 RAM', used for a few miscellaneous variables that must be accessible - using a load instruction relative to R0. The sim85e2 simulator - actually puts 1020K of RAM from FFF00000 to FFFFF000, so we arbitarily - choose a small portion at the end of that. */ -#define R0_RAM_ADDR 0xFFFFE000 - - -#endif /* __V850_SIM85E2_H__ */ diff --git a/include/asm-v850/sim85e2c.h b/include/asm-v850/sim85e2c.h deleted file mode 100644 index eee543ff3af8..000000000000 --- a/include/asm-v850/sim85e2c.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * include/asm-v850/sim85e2c.h -- Machine-dependent defs for - * V850E2 RTL simulator - * - * Copyright (C) 2002 NEC Corporation - * Copyright (C) 2002 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SIM85E2C_H__ -#define __V850_SIM85E2C_H__ - -/* Use generic sim85e2 settings, other than the various names. */ -#include - -#define CPU_MODEL "v850e2" -#define CPU_MODEL_LONG "NEC V850E2" -#define PLATFORM "sim85e2c" -#define PLATFORM_LONG "SIM85E2C V850E2 simulator" - -#endif /* __V850_SIM85E2C_H__ */ diff --git a/include/asm-v850/sim85e2s.h b/include/asm-v850/sim85e2s.h deleted file mode 100644 index ee066d5d3c51..000000000000 --- a/include/asm-v850/sim85e2s.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * include/asm-v850/sim85e2s.h -- Machine-dependent defs for - * V850E2 RTL simulator - * - * Copyright (C) 2003 NEC Electronics Corporation - * Copyright (C) 2003 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SIM85E2S_H__ -#define __V850_SIM85E2S_H__ - -#include /* Use generic sim85e2 settings. */ -#if 0 -#include /* + cache */ -#endif - -#define CPU_MODEL "v850e2" -#define CPU_MODEL_LONG "NEC V850E2" -#define PLATFORM "sim85e2s" -#define PLATFORM_LONG "SIM85E2S V850E2 simulator" - -#endif /* __V850_SIM85E2S_H__ */ diff --git a/include/asm-v850/simsyscall.h b/include/asm-v850/simsyscall.h deleted file mode 100644 index 4a19d5ae9d17..000000000000 --- a/include/asm-v850/simsyscall.h +++ /dev/null @@ -1,99 +0,0 @@ -/* - * include/asm-v850/simsyscall.h -- `System calls' under the v850e emulator - * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SIMSYSCALL_H__ -#define __V850_SIMSYSCALL_H__ - -#define V850_SIM_SYS_exit(a...) V850_SIM_SYSCALL_1 (1 , ##a) -#define V850_SIM_SYS_fork(a...) V850_SIM_SYSCALL_0 (2 , ##a) -#define V850_SIM_SYS_read(a...) V850_SIM_SYSCALL_3 (3 , ##a) -#define V850_SIM_SYS_write(a...) V850_SIM_SYSCALL_3 (4 , ##a) -#define V850_SIM_SYS_open(a...) V850_SIM_SYSCALL_2 (5 , ##a) -#define V850_SIM_SYS_close(a...) V850_SIM_SYSCALL_1 (6 , ##a) -#define V850_SIM_SYS_wait4(a...) V850_SIM_SYSCALL_4 (7 , ##a) -/* #define V850_SIM_SYS_creat(a...) V850_SIM_SYSCALL_1 (8 , ##a) */ -/* #define V850_SIM_SYS_link(a...) V850_SIM_SYSCALL_1 (9 , ##a) */ -/* #define V850_SIM_SYS_unlink(a...) V850_SIM_SYSCALL_1 (10 , ##a) */ -#define V850_SIM_SYS_execv(a...) V850_SIM_SYSCALL_2 (11 , ##a) -/* #define V850_SIM_SYS_chdir(a...) V850_SIM_SYSCALL_1 (12 , ##a) */ -/* #define V850_SIM_SYS_mknod(a...) V850_SIM_SYSCALL_1 (14 , ##a) */ -#define V850_SIM_SYS_chmod(a...) V850_SIM_SYSCALL_2 (15 , ##a) -#define V850_SIM_SYS_chown(a...) V850_SIM_SYSCALL_2 (16 , ##a) -#define V850_SIM_SYS_lseek(a...) V850_SIM_SYSCALL_3 (19 , ##a) -/* #define V850_SIM_SYS_getpid(a...) V850_SIM_SYSCALL_1 (20 , ##a) */ -/* #define V850_SIM_SYS_isatty(a...) V850_SIM_SYSCALL_1 (21 , ##a) */ -/* #define V850_SIM_SYS_fstat(a...) V850_SIM_SYSCALL_1 (22 , ##a) */ -#define V850_SIM_SYS_time(a...) V850_SIM_SYSCALL_1 (23 , ##a) -#define V850_SIM_SYS_poll(a...) V850_SIM_SYSCALL_3 (24 , ##a) -#define V850_SIM_SYS_stat(a...) V850_SIM_SYSCALL_2 (38 , ##a) -#define V850_SIM_SYS_pipe(a...) V850_SIM_SYSCALL_1 (42 , ##a) -#define V850_SIM_SYS_times(a...) V850_SIM_SYSCALL_1 (43 , ##a) -#define V850_SIM_SYS_execve(a...) V850_SIM_SYSCALL_3 (59 , ##a) -#define V850_SIM_SYS_gettimeofday(a...) V850_SIM_SYSCALL_2 (116 , ##a) -/* #define V850_SIM_SYS_utime(a...) V850_SIM_SYSCALL_2 (201 , ##a) */ -/* #define V850_SIM_SYS_wait(a...) V850_SIM_SYSCALL_1 (202 , ##a) */ - -#define V850_SIM_SYS_make_raw(a...) V850_SIM_SYSCALL_1 (1024 , ##a) - - -#define V850_SIM_SYSCALL_0(_call) \ -({ \ - register int call __asm__ ("r6") = _call; \ - register int rval __asm__ ("r10"); \ - __asm__ __volatile__ ("trap 31" \ - : "=r" (rval) \ - : "r" (call) \ - : "r11", "memory"); \ - rval; \ -}) -#define V850_SIM_SYSCALL_1(_call, _arg0) \ -({ \ - register int call __asm__ ("r6") = _call; \ - register long arg0 __asm__ ("r7") = (long)_arg0; \ - register int rval __asm__ ("r10"); \ - __asm__ __volatile__ ("trap 31" \ - : "=r" (rval) \ - : "r" (call), "r" (arg0) \ - : "r11", "memory"); \ - rval; \ -}) -#define V850_SIM_SYSCALL_2(_call, _arg0, _arg1) \ -({ \ - register int call __asm__ ("r6") = _call; \ - register long arg0 __asm__ ("r7") = (long)_arg0; \ - register long arg1 __asm__ ("r8") = (long)_arg1; \ - register int rval __asm__ ("r10"); \ - __asm__ __volatile__ ("trap 31" \ - : "=r" (rval) \ - : "r" (call), "r" (arg0), "r" (arg1) \ - : "r11", "memory"); \ - rval; \ -}) -#define V850_SIM_SYSCALL_3(_call, _arg0, _arg1, _arg2) \ -({ \ - register int call __asm__ ("r6") = _call; \ - register long arg0 __asm__ ("r7") = (long)_arg0; \ - register long arg1 __asm__ ("r8") = (long)_arg1; \ - register long arg2 __asm__ ("r9") = (long)_arg2; \ - register int rval __asm__ ("r10"); \ - __asm__ __volatile__ ("trap 31" \ - : "=r" (rval) \ - : "r" (call), "r" (arg0), "r" (arg1), "r" (arg2)\ - : "r11", "memory"); \ - rval; \ -}) - -#define V850_SIM_SYSCALL(call, args...) \ - V850_SIM_SYS_##call (args) - -#endif /* __V850_SIMSYSCALL_H__ */ diff --git a/include/asm-v850/socket.h b/include/asm-v850/socket.h deleted file mode 100644 index e199a2bf12aa..000000000000 --- a/include/asm-v850/socket.h +++ /dev/null @@ -1,57 +0,0 @@ -#ifndef __V850_SOCKET_H__ -#define __V850_SOCKET_H__ - -#include - -/* For setsockoptions(2) */ -#define SOL_SOCKET 1 - -#define SO_DEBUG 1 -#define SO_REUSEADDR 2 -#define SO_TYPE 3 -#define SO_ERROR 4 -#define SO_DONTROUTE 5 -#define SO_BROADCAST 6 -#define SO_SNDBUF 7 -#define SO_RCVBUF 8 -#define SO_SNDBUFFORCE 32 -#define SO_RCVBUFFORCE 33 -#define SO_KEEPALIVE 9 -#define SO_OOBINLINE 10 -#define SO_NO_CHECK 11 -#define SO_PRIORITY 12 -#define SO_LINGER 13 -#define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ -#define SO_PASSCRED 16 -#define SO_PEERCRED 17 -#define SO_RCVLOWAT 18 -#define SO_SNDLOWAT 19 -#define SO_RCVTIMEO 20 -#define SO_SNDTIMEO 21 - -/* Security levels - as per NRL IPv6 - don't actually do anything */ -#define SO_SECURITY_AUTHENTICATION 22 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 -#define SO_SECURITY_ENCRYPTION_NETWORK 24 - -#define SO_BINDTODEVICE 25 - -/* Socket filtering */ -#define SO_ATTACH_FILTER 26 -#define SO_DETACH_FILTER 27 - -#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP - -#define SO_ACCEPTCONN 30 - -#define SO_PEERSEC 31 -#define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -#define SO_MARK 36 - -#endif /* __V850_SOCKET_H__ */ diff --git a/include/asm-v850/sockios.h b/include/asm-v850/sockios.h deleted file mode 100644 index 823e106e6cd0..000000000000 --- a/include/asm-v850/sockios.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef __V850_SOCKIOS_H__ -#define __V850_SOCKIOS_H__ - -/* Socket-level I/O control calls. */ -#define FIOSETOWN 0x8901 -#define SIOCSPGRP 0x8902 -#define FIOGETOWN 0x8903 -#define SIOCGPGRP 0x8904 -#define SIOCATMARK 0x8905 -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ - -#endif /* __V850_SOCKIOS_H__ */ diff --git a/include/asm-v850/stat.h b/include/asm-v850/stat.h deleted file mode 100644 index c68c60d06e2f..000000000000 --- a/include/asm-v850/stat.h +++ /dev/null @@ -1,73 +0,0 @@ -/* - * include/asm-v850/stat.h -- v850 stat structure - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_STAT_H__ -#define __V850_STAT_H__ - -#include - -struct stat { - unsigned int st_dev; - unsigned long st_ino; - unsigned int st_mode; - unsigned int st_nlink; - unsigned int st_uid; - unsigned int st_gid; - unsigned int st_rdev; - long st_size; - unsigned long st_blksize; - unsigned long st_blocks; - unsigned long st_atime; - unsigned long __unused1; - unsigned long st_mtime; - unsigned long __unused2; - unsigned long st_ctime; - unsigned long __unused3; - unsigned long __unused4; - unsigned long __unused5; -}; - -struct stat64 { - unsigned long long st_dev; - unsigned long __unused1; - - unsigned long long st_ino; - - unsigned int st_mode; - unsigned int st_nlink; - - unsigned int st_uid; - unsigned int st_gid; - - unsigned long long st_rdev; - unsigned long __unused3; - - long long st_size; - unsigned long st_blksize; - - unsigned long st_blocks; /* No. of 512-byte blocks allocated */ - unsigned long __unused4; /* future possible st_blocks high bits */ - - unsigned long st_atime; - unsigned long st_atime_nsec; - - unsigned long st_mtime; - unsigned long st_mtime_nsec; - - unsigned long st_ctime; - unsigned long st_ctime_nsec; - - unsigned long __unused8; -}; - -#endif /* __V850_STAT_H__ */ diff --git a/include/asm-v850/statfs.h b/include/asm-v850/statfs.h deleted file mode 100644 index ea1596607f26..000000000000 --- a/include/asm-v850/statfs.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_STATFS_H__ -#define __V850_STATFS_H__ - -#include - -#endif /* __V850_STATFS_H__ */ diff --git a/include/asm-v850/string.h b/include/asm-v850/string.h deleted file mode 100644 index 478e234789d6..000000000000 --- a/include/asm-v850/string.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * include/asm-v850/string.h -- Architecture specific string routines - * - * Copyright (C) 2001,02 NEC Corporation - * Copyright (C) 2001,02 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_STRING_H__ -#define __V850_STRING_H__ - -#define __HAVE_ARCH_MEMCPY -#define __HAVE_ARCH_MEMSET -#define __HAVE_ARCH_MEMMOVE - -extern void *memcpy (void *, const void *, __kernel_size_t); -extern void *memset (void *, int, __kernel_size_t); -extern void *memmove (void *, const void *, __kernel_size_t); - -#endif /* __V850_STRING_H__ */ diff --git a/include/asm-v850/system.h b/include/asm-v850/system.h deleted file mode 100644 index 7daf1fdee119..000000000000 --- a/include/asm-v850/system.h +++ /dev/null @@ -1,123 +0,0 @@ -/* - * include/asm-v850/system.h -- Low-level interrupt/thread ops - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_SYSTEM_H__ -#define __V850_SYSTEM_H__ - -#include -#include - - -/* - * switch_to(n) should switch tasks to task ptr, first checking that - * ptr isn't the current task, in which case it does nothing. - */ -struct thread_struct; -extern void *switch_thread (struct thread_struct *last, - struct thread_struct *next); -#define switch_to(prev,next,last) \ - do { \ - if (prev != next) { \ - (last) = switch_thread (&prev->thread, &next->thread); \ - } \ - } while (0) - - -/* Enable/disable interrupts. */ -#define local_irq_enable() __asm__ __volatile__ ("ei") -#define local_irq_disable() __asm__ __volatile__ ("di") - -#define local_save_flags(flags) \ - __asm__ __volatile__ ("stsr %1, %0" : "=r" (flags) : "i" (SR_PSW)) -#define local_restore_flags(flags) \ - __asm__ __volatile__ ("ldsr %0, %1" :: "r" (flags), "i" (SR_PSW)) - -/* For spinlocks etc */ -#define local_irq_save(flags) \ - do { local_save_flags (flags); local_irq_disable (); } while (0) -#define local_irq_restore(flags) \ - local_restore_flags (flags); - - -static inline int irqs_disabled (void) -{ - unsigned flags; - local_save_flags (flags); - return !!(flags & 0x20); -} - - -/* - * Force strict CPU ordering. - * Not really required on v850... - */ -#define nop() __asm__ __volatile__ ("nop") -#define mb() __asm__ __volatile__ ("" ::: "memory") -#define rmb() mb () -#define wmb() mb () -#define read_barrier_depends() ((void)0) -#define set_mb(var, value) do { xchg (&var, value); } while (0) - -#define smp_mb() mb () -#define smp_rmb() rmb () -#define smp_wmb() wmb () -#define smp_read_barrier_depends() read_barrier_depends() - -#define xchg(ptr, with) \ - ((__typeof__ (*(ptr)))__xchg ((unsigned long)(with), (ptr), sizeof (*(ptr)))) - -static inline unsigned long __xchg (unsigned long with, - __volatile__ void *ptr, int size) -{ - unsigned long tmp, flags; - - local_irq_save (flags); - - switch (size) { - case 1: - tmp = *(unsigned char *)ptr; - *(unsigned char *)ptr = with; - break; - case 2: - tmp = *(unsigned short *)ptr; - *(unsigned short *)ptr = with; - break; - case 4: - tmp = *(unsigned long *)ptr; - *(unsigned long *)ptr = with; - break; - } - - local_irq_restore (flags); - - return tmp; -} - -#include - -/* - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make - * them available. - */ -#define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\ - (unsigned long)(n), sizeof(*(ptr)))) -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) - -#ifndef CONFIG_SMP -#include -#endif - -#define arch_align_stack(x) (x) - -#endif /* __V850_SYSTEM_H__ */ diff --git a/include/asm-v850/teg.h b/include/asm-v850/teg.h deleted file mode 100644 index acc8c7d95329..000000000000 --- a/include/asm-v850/teg.h +++ /dev/null @@ -1,101 +0,0 @@ -/* - * include/asm-v850/teg.h -- NB85E-TEG cpu chip - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_TEG_H__ -#define __V850_TEG_H__ - - -/* The TEG uses the V850E cpu core. */ -#include -#include - - -#define CPU_MODEL "v850e/nb85e-teg" -#define CPU_MODEL_LONG "NEC V850E/NB85E TEG" - - -/* For */ -/* We use on-chip RAM, for a few miscellaneous variables that must be - accessible using a load instruction relative to R0. On the NB85E/TEG, - There's 60KB of iRAM starting at 0xFFFF0000, however we need the base - address to be addressable by a 16-bit signed offset, so we only use the - second half of it starting from 0xFFFF8000. */ -#define R0_RAM_ADDR 0xFFFF8000 - - -/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). - Some of these are parameterized even though there's only a single - interrupt, for compatibility with some generic code that works on other - processor models. */ -#define IRQ_INTCMD(n) 6 /* interval timer interrupt */ -#define IRQ_INTCMD_NUM 1 -#define IRQ_INTSER(n) 16 /* UART reception error */ -#define IRQ_INTSER_NUM 1 -#define IRQ_INTSR(n) 17 /* UART reception completion */ -#define IRQ_INTSR_NUM 1 -#define IRQ_INTST(n) 18 /* UART transmission completion */ -#define IRQ_INTST_NUM 1 - -/* For */ -#define NUM_CPU_IRQS 64 - - -/* TEG UART details. */ -#define V850E_UART_BASE_ADDR(n) (0xFFFFF600 + 0x10 * (n)) -#define V850E_UART_ASIM_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x0) -#define V850E_UART_ASIS_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x2) -#define V850E_UART_ASIF_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x4) -#define V850E_UART_CKSR_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x6) -#define V850E_UART_BRGC_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x8) -#define V850E_UART_TXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0xA) -#define V850E_UART_RXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0xC) -#define V850E_UART_NUM_CHANNELS 1 -#define V850E_UART_BASE_FREQ CPU_CLOCK_FREQ -/* This is a function that gets called before configuring the UART. */ -#define V850E_UART_PRE_CONFIGURE teg_uart_pre_configure -#ifndef __ASSEMBLY__ -extern void teg_uart_pre_configure (unsigned chan, - unsigned cflags, unsigned baud); -#endif - - -/* The TEG RTPU. */ -#define V850E_RTPU_BASE_ADDR 0xFFFFF210 - - -/* TEG series timer D details. */ -#define V850E_TIMER_D_BASE_ADDR 0xFFFFF210 -#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0) -#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4) -#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x8) -#define V850E_TIMER_D_BASE_FREQ CPU_CLOCK_FREQ - - -/* `Interrupt Source Select' control register. */ -#define TEG_ISS_ADDR 0xFFFFF7FA -#define TEG_ISS (*(volatile u8 *)TEG_ISS_ADDR) - -/* Port 0 I/O register (bits 0-3 used). */ -#define TEG_PORT0_IO_ADDR 0xFFFFF7F2 -#define TEG_PORT0_IO (*(volatile u8 *)TEG_PORT0_IO_ADDR) -/* Port 0 control register (bits 0-3 control mode, 0 = output, 1 = input). */ -#define TEG_PORT0_PM_ADDR 0xFFFFF7F4 -#define TEG_PORT0_PM (*(volatile u8 *)TEG_PORT0_PM_ADDR) - - -#ifndef __ASSEMBLY__ -extern void teg_init_irqs (void); -#endif - - -#endif /* __V850_TEG_H__ */ diff --git a/include/asm-v850/termbits.h b/include/asm-v850/termbits.h deleted file mode 100644 index 295d7bf69451..000000000000 --- a/include/asm-v850/termbits.h +++ /dev/null @@ -1,200 +0,0 @@ -#ifndef __V850_TERMBITS_H__ -#define __V850_TERMBITS_H__ - -#include - -typedef unsigned char cc_t; -typedef unsigned int speed_t; -typedef unsigned int tcflag_t; - -#define NCCS 19 -struct termios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ -}; - -struct termios2 { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -struct ktermios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -/* c_cc characters */ -#define VINTR 0 -#define VQUIT 1 -#define VERASE 2 -#define VKILL 3 -#define VEOF 4 -#define VTIME 5 -#define VMIN 6 -#define VSWTC 7 -#define VSTART 8 -#define VSTOP 9 -#define VSUSP 10 -#define VEOL 11 -#define VREPRINT 12 -#define VDISCARD 13 -#define VWERASE 14 -#define VLNEXT 15 -#define VEOL2 16 - - -/* c_iflag bits */ -#define IGNBRK 0000001 -#define BRKINT 0000002 -#define IGNPAR 0000004 -#define PARMRK 0000010 -#define INPCK 0000020 -#define ISTRIP 0000040 -#define INLCR 0000100 -#define IGNCR 0000200 -#define ICRNL 0000400 -#define IUCLC 0001000 -#define IXON 0002000 -#define IXANY 0004000 -#define IXOFF 0010000 -#define IMAXBEL 0020000 -#define IUTF8 0040000 - -/* c_oflag bits */ -#define OPOST 0000001 -#define OLCUC 0000002 -#define ONLCR 0000004 -#define OCRNL 0000010 -#define ONOCR 0000020 -#define ONLRET 0000040 -#define OFILL 0000100 -#define OFDEL 0000200 -#define NLDLY 0000400 -#define NL0 0000000 -#define NL1 0000400 -#define CRDLY 0003000 -#define CR0 0000000 -#define CR1 0001000 -#define CR2 0002000 -#define CR3 0003000 -#define TABDLY 0014000 -#define TAB0 0000000 -#define TAB1 0004000 -#define TAB2 0010000 -#define TAB3 0014000 -#define XTABS 0014000 -#define BSDLY 0020000 -#define BS0 0000000 -#define BS1 0020000 -#define VTDLY 0040000 -#define VT0 0000000 -#define VT1 0040000 -#define FFDLY 0100000 -#define FF0 0000000 -#define FF1 0100000 - -/* c_cflag bit meaning */ -#define CBAUD 0010017 -#define B0 0000000 /* hang up */ -#define B50 0000001 -#define B75 0000002 -#define B110 0000003 -#define B134 0000004 -#define B150 0000005 -#define B200 0000006 -#define B300 0000007 -#define B600 0000010 -#define B1200 0000011 -#define B1800 0000012 -#define B2400 0000013 -#define B4800 0000014 -#define B9600 0000015 -#define B19200 0000016 -#define B38400 0000017 -#define EXTA B19200 -#define EXTB B38400 -#define CSIZE 0000060 -#define CS5 0000000 -#define CS6 0000020 -#define CS7 0000040 -#define CS8 0000060 -#define CSTOPB 0000100 -#define CREAD 0000200 -#define PARENB 0000400 -#define PARODD 0001000 -#define HUPCL 0002000 -#define CLOCAL 0004000 -#define CBAUDEX 0010000 -#define BOTHER 0010000 -#define B57600 0010001 -#define B115200 0010002 -#define B230400 0010003 -#define B460800 0010004 -#define B500000 0010005 -#define B576000 0010006 -#define B921600 0010007 -#define B1000000 0010010 -#define B1152000 0010011 -#define B1500000 0010012 -#define B2000000 0010013 -#define B2500000 0010014 -#define B3000000 0010015 -#define B3500000 0010016 -#define B4000000 0010017 -#define CIBAUD 002003600000 /* input baud rate */ -#define CMSPAR 010000000000 /* mark or space (stick) parity */ -#define CRTSCTS 020000000000 /* flow control */ - -#define IBSHIFT 16 /* Shifr from CBAUD to CIBAUD */ - -/* c_lflag bits */ -#define ISIG 0000001 -#define ICANON 0000002 -#define XCASE 0000004 -#define ECHO 0000010 -#define ECHOE 0000020 -#define ECHOK 0000040 -#define ECHONL 0000100 -#define NOFLSH 0000200 -#define TOSTOP 0000400 -#define ECHOCTL 0001000 -#define ECHOPRT 0002000 -#define ECHOKE 0004000 -#define FLUSHO 0010000 -#define PENDIN 0040000 -#define IEXTEN 0100000 - - -/* tcflow() and TCXONC use these */ -#define TCOOFF 0 -#define TCOON 1 -#define TCIOFF 2 -#define TCION 3 - -/* tcflush() and TCFLSH use these */ -#define TCIFLUSH 0 -#define TCOFLUSH 1 -#define TCIOFLUSH 2 - -/* tcsetattr uses these */ -#define TCSANOW 0 -#define TCSADRAIN 1 -#define TCSAFLUSH 2 - -#endif /* __V850_TERMBITS_H__ */ diff --git a/include/asm-v850/termios.h b/include/asm-v850/termios.h deleted file mode 100644 index fcd171838d9c..000000000000 --- a/include/asm-v850/termios.h +++ /dev/null @@ -1,90 +0,0 @@ -#ifndef __V850_TERMIOS_H__ -#define __V850_TERMIOS_H__ - -#include -#include - -struct winsize { - unsigned short ws_row; - unsigned short ws_col; - unsigned short ws_xpixel; - unsigned short ws_ypixel; -}; - -#define NCC 8 -struct termio { - unsigned short c_iflag; /* input mode flags */ - unsigned short c_oflag; /* output mode flags */ - unsigned short c_cflag; /* control mode flags */ - unsigned short c_lflag; /* local mode flags */ - unsigned char c_line; /* line discipline */ - unsigned char c_cc[NCC]; /* control characters */ -}; - -/* modem lines */ -#define TIOCM_LE 0x001 -#define TIOCM_DTR 0x002 -#define TIOCM_RTS 0x004 -#define TIOCM_ST 0x008 -#define TIOCM_SR 0x010 -#define TIOCM_CTS 0x020 -#define TIOCM_CAR 0x040 -#define TIOCM_RNG 0x080 -#define TIOCM_DSR 0x100 -#define TIOCM_CD TIOCM_CAR -#define TIOCM_RI TIOCM_RNG -#define TIOCM_OUT1 0x2000 -#define TIOCM_OUT2 0x4000 -#define TIOCM_LOOP 0x8000 - -/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ - -#ifdef __KERNEL__ - -/* intr=^C quit=^\ erase=del kill=^U - eof=^D vtime=\0 vmin=\1 sxtc=\0 - start=^Q stop=^S susp=^Z eol=\0 - reprint=^R discard=^U werase=^W lnext=^V - eol2=\0 -*/ -#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0" - -/* - * Translate a "termio" structure into a "termios". Ugh. - */ -#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \ - unsigned short __tmp; \ - get_user(__tmp,&(termio)->x); \ - *(unsigned short *) &(termios)->x = __tmp; \ -} - -#define user_termio_to_kernel_termios(termios, termio) \ -({ \ - SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \ - copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ -}) - -/* - * Translate a "termios" structure into a "termio". Ugh. - */ -#define kernel_termios_to_user_termio(termio, termios) \ -({ \ - put_user((termios)->c_iflag, &(termio)->c_iflag); \ - put_user((termios)->c_oflag, &(termio)->c_oflag); \ - put_user((termios)->c_cflag, &(termio)->c_cflag); \ - put_user((termios)->c_lflag, &(termio)->c_lflag); \ - put_user((termios)->c_line, &(termio)->c_line); \ - copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ -}) - -#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2)) -#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2)) -#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios)) -#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios)) - -#endif /* __KERNEL__ */ - -#endif /* __V850_TERMIOS_H__ */ diff --git a/include/asm-v850/thread_info.h b/include/asm-v850/thread_info.h deleted file mode 100644 index 1a9e6ae0c5fd..000000000000 --- a/include/asm-v850/thread_info.h +++ /dev/null @@ -1,129 +0,0 @@ -/* - * include/asm-v850/thread_info.h -- v850 low-level thread information - * - * Copyright (C) 2002 NEC Corporation - * Copyright (C) 2002 Miles Bader - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * - Incorporating suggestions made by Linus Torvalds and Dave Miller - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * This file was derived from the PPC version, include/asm-ppc/thread_info.h - * which was adapted from the i386 version by Paul Mackerras - */ - -#ifndef __V850_THREAD_INFO_H__ -#define __V850_THREAD_INFO_H__ - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ - -/* - * low level task data. - * If you change this, change the TI_* offsets below to match. - */ -struct thread_info { - struct task_struct *task; /* main task structure */ - struct exec_domain *exec_domain; /* execution domain */ - unsigned long flags; /* low level flags */ - int cpu; /* cpu we're on */ - int preempt_count; /* 0 => preemptable, - <0 => BUG */ - struct restart_block restart_block; -}; - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = 0, \ - .cpu = 0, \ - .preempt_count = 1, \ - .restart_block = { \ - .fn = do_no_restart_syscall, \ - }, \ -} - -#define init_thread_info (init_thread_union.thread_info) -#define init_stack (init_thread_union.stack) - -/* - * macros/functions for gaining access to the thread information structure - */ - -/* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) \ - __get_free_pages(GFP_KERNEL, 1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) - -#endif /* __ASSEMBLY__ */ - - -/* - * Offsets in thread_info structure, used in assembly code - */ -#define TI_TASK 0 -#define TI_EXECDOMAIN 4 -#define TI_FLAGS 8 -#define TI_CPU 12 -#define TI_PREEMPT 16 - -#define PREEMPT_ACTIVE 0x4000000 - -/* - * thread information flag bit numbers - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_SIGPENDING 1 /* signal pending */ -#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling - TIF_NEED_RESCHED */ -#define TIF_MEMDIE 4 - -/* as above, but as bit values */ -#define _TIF_SYSCALL_TRACE (1< - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_TLB_H__ -#define __V850_TLB_H__ - -#define tlb_flush(tlb) ((void)0) - -#include - -#endif /* __V850_TLB_H__ */ diff --git a/include/asm-v850/tlbflush.h b/include/asm-v850/tlbflush.h deleted file mode 100644 index c44aa64449c8..000000000000 --- a/include/asm-v850/tlbflush.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - * include/asm-v850/tlbflush.h - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_TLBFLUSH_H__ -#define __V850_TLBFLUSH_H__ - -#include - - -/* - * flush all user-space atc entries. - */ -static inline void __flush_tlb(void) -{ - BUG (); -} - -static inline void __flush_tlb_one(unsigned long addr) -{ - BUG (); -} - -#define flush_tlb() __flush_tlb() - -/* - * flush all atc entries (both kernel and user-space entries). - */ -static inline void flush_tlb_all(void) -{ - BUG (); -} - -static inline void flush_tlb_mm(struct mm_struct *mm) -{ - BUG (); -} - -static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) -{ - BUG (); -} - -static inline void flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end) -{ - BUG (); -} - -static inline void flush_tlb_kernel_page(unsigned long addr) -{ - BUG (); -} - -#endif /* __V850_TLBFLUSH_H__ */ diff --git a/include/asm-v850/topology.h b/include/asm-v850/topology.h deleted file mode 100644 index 6040e41d7945..000000000000 --- a/include/asm-v850/topology.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __V850_TOPOLOGY_H__ -#define __V850_TOPOLOGY_H__ - -#include - -#endif /* __V850_TOPOLOGY_H__ */ diff --git a/include/asm-v850/types.h b/include/asm-v850/types.h deleted file mode 100644 index 89f735ee41dd..000000000000 --- a/include/asm-v850/types.h +++ /dev/null @@ -1,36 +0,0 @@ -#ifndef __V850_TYPES_H__ -#define __V850_TYPES_H__ - -#ifndef __ASSEMBLY__ - -/* - * This file is never included by application software unless - * explicitly requested (e.g., via linux/types.h) in which case the - * application is Linux specific so (user-) name space pollution is - * not a major issue. However, for interoperability, libraries still - * need to be careful to avoid a name clashes. - */ -#include - -typedef unsigned short umode_t; - -#endif /* !__ASSEMBLY__ */ - -/* - * These aren't exported outside the kernel to avoid name space clashes - */ -#ifdef __KERNEL__ - -#define BITS_PER_LONG 32 - -#ifndef __ASSEMBLY__ - -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; - -#endif /* !__ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - -#endif /* __V850_TYPES_H__ */ diff --git a/include/asm-v850/uaccess.h b/include/asm-v850/uaccess.h deleted file mode 100644 index 64563c409bb2..000000000000 --- a/include/asm-v850/uaccess.h +++ /dev/null @@ -1,159 +0,0 @@ -#ifndef __V850_UACCESS_H__ -#define __V850_UACCESS_H__ - -/* - * User space memory access functions - */ - -#include -#include - -#include -#include - -#define VERIFY_READ 0 -#define VERIFY_WRITE 1 - -static inline int access_ok (int type, const void *addr, unsigned long size) -{ - /* XXX I guess we should check against real ram bounds at least, and - possibly make sure ADDR is not within the kernel. - For now we just check to make sure it's not a small positive - or negative value, as that will at least catch some kinds of - error. In particular, we make sure that ADDR's not within the - interrupt vector area, which we know starts at zero, or within the - peripheral-I/O area, which is located just _before_ zero. */ - unsigned long val = (unsigned long)addr; - return val >= (0x80 + NUM_CPU_IRQS*16) && val < 0xFFFFF000; -} - -/* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is - * the address at which the program should continue. No registers are - * modified, so it is entirely up to the continuation code to figure out - * what to do. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - */ - -struct exception_table_entry -{ - unsigned long insn, fixup; -}; - -/* Returns 0 if exception not found and fixup otherwise. */ -extern unsigned long search_exception_table (unsigned long); - - -/* - * These are the main single-value transfer routines. They automatically - * use the right size if we just have the right pointer type. - */ - -extern int bad_user_access_length (void); - -#define __get_user(var, ptr) \ - ({ \ - int __gu_err = 0; \ - typeof(*(ptr)) __gu_val = 0; \ - switch (sizeof (*(ptr))) { \ - case 1: \ - case 2: \ - case 4: \ - __gu_val = *(ptr); \ - break; \ - case 8: \ - memcpy(&__gu_val, ptr, sizeof(__gu_val)); \ - break; \ - default: \ - __gu_val = 0; \ - __gu_err = __get_user_bad (); \ - break; \ - } \ - (var) = __gu_val; \ - __gu_err; \ - }) -#define __get_user_bad() (bad_user_access_length (), (-EFAULT)) - -#define __put_user(var, ptr) \ - ({ \ - int __pu_err = 0; \ - switch (sizeof (*(ptr))) { \ - case 1: \ - case 2: \ - case 4: \ - *(ptr) = (var); \ - break; \ - case 8: { \ - typeof(*(ptr)) __pu_val = 0; \ - memcpy(ptr, &__pu_val, sizeof(__pu_val)); \ - } \ - break; \ - default: \ - __pu_err = __put_user_bad (); \ - break; \ - } \ - __pu_err; \ - }) -#define __put_user_bad() (bad_user_access_length (), (-EFAULT)) - -#define put_user(x, ptr) __put_user(x, ptr) -#define get_user(x, ptr) __get_user(x, ptr) - -#define __copy_from_user(to, from, n) (memcpy (to, from, n), 0) -#define __copy_to_user(to, from, n) (memcpy(to, from, n), 0) - -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user - -#define copy_from_user(to, from, n) __copy_from_user (to, from, n) -#define copy_to_user(to, from, n) __copy_to_user(to, from, n) - -#define copy_to_user_ret(to,from,n,retval) \ - ({ if (copy_to_user (to,from,n)) return retval; }) - -#define copy_from_user_ret(to,from,n,retval) \ - ({ if (copy_from_user (to,from,n)) return retval; }) - -/* - * Copy a null terminated string from userspace. - */ - -static inline long -strncpy_from_user (char *dst, const char *src, long count) -{ - char *tmp; - strncpy (dst, src, count); - for (tmp = dst; *tmp && count > 0; tmp++, count--) - ; - return tmp - dst; -} - -/* - * Return the size of a string (including the ending 0) - * - * Return 0 on exception, a value greater than N if too long - */ -static inline long strnlen_user (const char *src, long n) -{ - return strlen (src) + 1; -} - -#define strlen_user(str) strnlen_user (str, 32767) - -/* - * Zero Userspace - */ - -static inline unsigned long -clear_user (void *to, unsigned long n) -{ - memset (to, 0, n); - return 0; -} - -#endif /* __V850_UACCESS_H__ */ diff --git a/include/asm-v850/ucontext.h b/include/asm-v850/ucontext.h deleted file mode 100644 index 303c21590cff..000000000000 --- a/include/asm-v850/ucontext.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef __V850_UCONTEXT_H__ -#define __V850_UCONTEXT_H__ - -#include - -struct ucontext { - unsigned long uc_flags; - struct ucontext *uc_link; - stack_t uc_stack; - struct sigcontext uc_mcontext; - sigset_t uc_sigmask; /* mask last for extensibility */ -}; - -#endif /* __V850_UCONTEXT_H__ */ diff --git a/include/asm-v850/unaligned.h b/include/asm-v850/unaligned.h deleted file mode 100644 index 53122b28491e..000000000000 --- a/include/asm-v850/unaligned.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Note that some v850 chips support unaligned access, but it seems too - * annoying to use. - */ -#ifndef _ASM_V850_UNALIGNED_H -#define _ASM_V850_UNALIGNED_H - -#include -#include -#include - -#define get_unaligned __get_unaligned_le -#define put_unaligned __put_unaligned_le - -#endif /* _ASM_V850_UNALIGNED_H */ diff --git a/include/asm-v850/unistd.h b/include/asm-v850/unistd.h deleted file mode 100644 index 2241ed45ecfe..000000000000 --- a/include/asm-v850/unistd.h +++ /dev/null @@ -1,244 +0,0 @@ -/* - * include/asm-v850/unistd.h -- System call numbers and invocation mechanism - * - * Copyright (C) 2001,02,03,04 NEC Electronics Corporation - * Copyright (C) 2001,02,03,04 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_UNISTD_H__ -#define __V850_UNISTD_H__ - -#define __NR_restart_syscall 0 -#define __NR_exit 1 -#define __NR_fork 2 -#define __NR_read 3 -#define __NR_write 4 -#define __NR_open 5 -#define __NR_close 6 -#define __NR_waitpid 7 -#define __NR_creat 8 -#define __NR_link 9 -#define __NR_unlink 10 -#define __NR_execve 11 -#define __NR_chdir 12 -#define __NR_time 13 -#define __NR_mknod 14 -#define __NR_chmod 15 -#define __NR_chown 16 -#define __NR_break 17 -#define __NR_lseek 19 -#define __NR_getpid 20 -#define __NR_mount 21 -#define __NR_umount 22 -#define __NR_setuid 23 -#define __NR_getuid 24 -#define __NR_stime 25 -#define __NR_ptrace 26 -#define __NR_alarm 27 -#define __NR_pause 29 -#define __NR_utime 30 -#define __NR_stty 31 -#define __NR_gtty 32 -#define __NR_access 33 -#define __NR_nice 34 -#define __NR_ftime 35 -#define __NR_sync 36 -#define __NR_kill 37 -#define __NR_rename 38 -#define __NR_mkdir 39 -#define __NR_rmdir 40 -#define __NR_dup 41 -#define __NR_pipe 42 -#define __NR_times 43 -#define __NR_prof 44 -#define __NR_brk 45 -#define __NR_setgid 46 -#define __NR_getgid 47 -#define __NR_signal 48 -#define __NR_geteuid 49 -#define __NR_getegid 50 -#define __NR_acct 51 -#define __NR_umount2 52 -#define __NR_lock 53 -#define __NR_ioctl 54 -#define __NR_fcntl 55 -#define __NR_setpgid 57 -#define __NR_umask 60 -#define __NR_chroot 61 -#define __NR_ustat 62 -#define __NR_dup2 63 -#define __NR_getppid 64 -#define __NR_getpgrp 65 -#define __NR_setsid 66 -#define __NR_sigaction 67 -#define __NR_sgetmask 68 -#define __NR_ssetmask 69 -#define __NR_setreuid 70 -#define __NR_setregid 71 -#define __NR_sigsuspend 72 -#define __NR_sigpending 73 -#define __NR_sethostname 74 -#define __NR_setrlimit 75 -#define __NR_ugetrlimit 76 -#define __NR_getrusage 77 -#define __NR_gettimeofday 78 -#define __NR_settimeofday 79 -#define __NR_getgroups 80 -#define __NR_setgroups 81 -#define __NR_select 82 -#define __NR_symlink 83 -#define __NR_readlink 85 -#define __NR_uselib 86 -#define __NR_swapon 87 -#define __NR_reboot 88 -#define __NR_readdir 89 -#define __NR_mmap 90 -#define __NR_munmap 91 -#define __NR_truncate 92 -#define __NR_ftruncate 93 -#define __NR_fchmod 94 -#define __NR_fchown 95 -#define __NR_getpriority 96 -#define __NR_setpriority 97 -#define __NR_profil 98 -#define __NR_statfs 99 -#define __NR_fstatfs 100 -#define __NR_socketcall 102 -#define __NR_syslog 103 -#define __NR_setitimer 104 -#define __NR_getitimer 105 -#define __NR_stat 106 -#define __NR_lstat 107 -#define __NR_fstat 108 -#define __NR_vhangup 111 -#define __NR_wait4 114 -#define __NR_swapoff 115 -#define __NR_sysinfo 116 -#define __NR_ipc 117 -#define __NR_fsync 118 -#define __NR_sigreturn 119 -#define __NR_clone 120 -#define __NR_setdomainname 121 -#define __NR_uname 122 -#define __NR_cacheflush 123 -#define __NR_adjtimex 124 -#define __NR_mprotect 125 -#define __NR_sigprocmask 126 -#define __NR_create_module 127 -#define __NR_init_module 128 -#define __NR_delete_module 129 -#define __NR_get_kernel_syms 130 -#define __NR_quotactl 131 -#define __NR_getpgid 132 -#define __NR_fchdir 133 -#define __NR_bdflush 134 -#define __NR_sysfs 135 -#define __NR_personality 136 -#define __NR_afs_syscall 137 /* Syscall for Andrew File System */ -#define __NR_setfsuid 138 -#define __NR_setfsgid 139 -#define __NR__llseek 140 -#define __NR_getdents 141 -#define __NR_flock 143 -#define __NR_msync 144 -#define __NR_readv 145 -#define __NR_writev 146 -#define __NR_getsid 147 -#define __NR_fdatasync 148 -#define __NR__sysctl 149 -#define __NR_mlock 150 -#define __NR_munlock 151 -#define __NR_mlockall 152 -#define __NR_munlockall 153 -#define __NR_sched_setparam 154 -#define __NR_sched_getparam 155 -#define __NR_sched_setscheduler 156 -#define __NR_sched_getscheduler 157 -#define __NR_sched_yield 158 -#define __NR_sched_get_priority_max 159 -#define __NR_sched_get_priority_min 160 -#define __NR_sched_rr_get_interval 161 -#define __NR_nanosleep 162 -#define __NR_mremap 163 -#define __NR_setresuid 164 -#define __NR_getresuid 165 -#define __NR_query_module 167 -#define __NR_poll 168 -#define __NR_nfsservctl 169 -#define __NR_setresgid 170 -#define __NR_getresgid 171 -#define __NR_prctl 172 -#define __NR_rt_sigreturn 173 -#define __NR_rt_sigaction 174 -#define __NR_rt_sigprocmask 175 -#define __NR_rt_sigpending 176 -#define __NR_rt_sigtimedwait 177 -#define __NR_rt_sigqueueinfo 178 -#define __NR_rt_sigsuspend 179 -#define __NR_pread 180 -#define __NR_pwrite 181 -#define __NR_lchown 182 -#define __NR_getcwd 183 -#define __NR_capget 184 -#define __NR_capset 185 -#define __NR_sigaltstack 186 -#define __NR_sendfile 187 -#define __NR_getpmsg 188 /* some people actually want streams */ -#define __NR_putpmsg 189 /* some people actually want streams */ -#define __NR_vfork 190 -#define __NR_mmap2 192 -#define __NR_truncate64 193 -#define __NR_ftruncate64 194 -#define __NR_stat64 195 -#define __NR_lstat64 196 -#define __NR_fstat64 197 -#define __NR_fcntl64 198 -#define __NR_getdents64 199 -#define __NR_pivot_root 200 -#define __NR_gettid 201 -#define __NR_tkill 202 - -#ifdef __KERNEL__ - -#define __ARCH_WANT_IPC_PARSE_VERSION -#define __ARCH_WANT_OLD_READDIR -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_SYS_ALARM -#define __ARCH_WANT_SYS_GETHOSTNAME -#define __ARCH_WANT_SYS_PAUSE -#define __ARCH_WANT_SYS_SGETMASK -#define __ARCH_WANT_SYS_SIGNAL -#define __ARCH_WANT_SYS_TIME -#define __ARCH_WANT_SYS_UTIME -#define __ARCH_WANT_SYS_WAITPID -#define __ARCH_WANT_SYS_SOCKETCALL -#define __ARCH_WANT_SYS_FADVISE64 -#define __ARCH_WANT_SYS_GETPGRP -#define __ARCH_WANT_SYS_LLSEEK -#define __ARCH_WANT_SYS_NICE -#define __ARCH_WANT_SYS_OLDUMOUNT -#define __ARCH_WANT_SYS_SIGPENDING -#define __ARCH_WANT_SYS_SIGPROCMASK -#define __ARCH_WANT_SYS_RT_SIGACTION - -/* - * "Conditional" syscalls - */ -#define cond_syscall(name) \ - asm (".weak\t" C_SYMBOL_STRING(name) ";" \ - ".set\t" C_SYMBOL_STRING(name) "," C_SYMBOL_STRING(sys_ni_syscall)) -#if 0 -/* This doesn't work if there's a function prototype for NAME visible, - because the argument types probably won't match. */ -#define cond_syscall(name) \ - void name (void) __attribute__ ((weak, alias ("sys_ni_syscall"))); -#endif - -#endif /* __KERNEL__ */ -#endif /* __V850_UNISTD_H__ */ diff --git a/include/asm-v850/user.h b/include/asm-v850/user.h deleted file mode 100644 index 63cdc567d272..000000000000 --- a/include/asm-v850/user.h +++ /dev/null @@ -1,52 +0,0 @@ -#ifndef __V850_USER_H__ -#define __V850_USER_H__ - -/* Adapted from . */ - -#include -#include - -/* - * Core file format: The core file is written in such a way that gdb - * can understand it and provide useful information to the user (under - * linux we use the `trad-core' bfd, NOT the osf-core). The file contents - * are as follows: - * - * upage: 1 page consisting of a user struct that tells gdb - * what is present in the file. Directly after this is a - * copy of the task_struct, which is currently not used by gdb, - * but it may come in handy at some point. All of the registers - * are stored as part of the upage. The upage should always be - * only one page long. - * data: The data segment follows next. We use current->end_text to - * current->brk to pick up all of the user variables, plus any memory - * that may have been sbrk'ed. No attempt is made to determine if a - * page is demand-zero or if a page is totally unused, we just cover - * the entire range. All of the addresses are rounded in such a way - * that an integral number of pages is written. - * stack: We need the stack information in order to get a meaningful - * backtrace. We need to write the data from usp to - * current->start_stack, so we round each of these in order to be able - * to write an integer number of pages. - */ -struct user { - struct pt_regs regs; /* entire machine state */ - size_t u_tsize; /* text size (pages) */ - size_t u_dsize; /* data size (pages) */ - size_t u_ssize; /* stack size (pages) */ - unsigned long start_code; /* text starting address */ - unsigned long start_data; /* data starting address */ - unsigned long start_stack; /* stack starting address */ - long int signal; /* signal causing core dump */ - unsigned long u_ar0; /* help gdb find registers */ - unsigned long magic; /* identifies a core file */ - char u_comm[32]; /* user command name */ -}; - -#define NBPG PAGE_SIZE -#define UPAGES 1 -#define HOST_TEXT_START_ADDR (u.start_code) -#define HOST_DATA_START_ADDR (u.start_data) -#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) - -#endif /* __V850_USER_H__ */ diff --git a/include/asm-v850/v850e.h b/include/asm-v850/v850e.h deleted file mode 100644 index 5a222eb5117f..000000000000 --- a/include/asm-v850/v850e.h +++ /dev/null @@ -1,21 +0,0 @@ -/* - * include/asm-v850/v850e.h -- V850E CPU - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_V850E_H__ -#define __V850_V850E_H__ - -#include - -#define CPU_ARCH "v850e" - -#endif /* __V850_V850E_H__ */ diff --git a/include/asm-v850/v850e2.h b/include/asm-v850/v850e2.h deleted file mode 100644 index 48680408ab7e..000000000000 --- a/include/asm-v850/v850e2.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * include/asm-v850/v850e2.h -- Machine-dependent defs for V850E2 CPUs - * - * Copyright (C) 2002,03 NEC Electronics Corporation - * Copyright (C) 2002,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_V850E2_H__ -#define __V850_V850E2_H__ - -#include /* v850e-style interrupt system. */ - - -#define CPU_ARCH "v850e2" - - -/* Control registers. */ - -/* Chip area select control */ -#define V850E2_CSC_ADDR(n) (0xFFFFF060 + (n) * 2) -#define V850E2_CSC(n) (*(volatile u16 *)V850E2_CSC_ADDR(n)) -/* I/O area select control */ -#define V850E2_BPC_ADDR 0xFFFFF064 -#define V850E2_BPC (*(volatile u16 *)V850E2_BPC_ADDR) -/* Bus size configuration */ -#define V850E2_BSC_ADDR 0xFFFFF066 -#define V850E2_BSC (*(volatile u16 *)V850E2_BSC_ADDR) -/* Endian configuration */ -#define V850E2_BEC_ADDR 0xFFFFF068 -#define V850E2_BEC (*(volatile u16 *)V850E2_BEC_ADDR) -/* Cache configuration */ -#define V850E2_BHC_ADDR 0xFFFFF06A -#define V850E2_BHC (*(volatile u16 *)V850E2_BHC_ADDR) -/* NPB strobe-wait configuration */ -#define V850E2_VSWC_ADDR 0xFFFFF06E -#define V850E2_VSWC (*(volatile u16 *)V850E2_VSWC_ADDR) -/* Bus cycle type */ -#define V850E2_BCT_ADDR(n) (0xFFFFF480 + (n) * 2) -#define V850E2_BCT(n) (*(volatile u16 *)V850E2_BCT_ADDR(n)) -/* Data wait control */ -#define V850E2_DWC_ADDR(n) (0xFFFFF484 + (n) * 2) -#define V850E2_DWC(n) (*(volatile u16 *)V850E2_DWC_ADDR(n)) -/* Bus cycle control */ -#define V850E2_BCC_ADDR 0xFFFFF488 -#define V850E2_BCC (*(volatile u16 *)V850E2_BCC_ADDR) -/* Address wait control */ -#define V850E2_ASC_ADDR 0xFFFFF48A -#define V850E2_ASC (*(volatile u16 *)V850E2_ASC_ADDR) -/* Local bus sizing control */ -#define V850E2_LBS_ADDR 0xFFFFF48E -#define V850E2_LBS (*(volatile u16 *)V850E2_LBS_ADDR) -/* Line buffer control */ -#define V850E2_LBC_ADDR(n) (0xFFFFF490 + (n) * 2) -#define V850E2_LBC(n) (*(volatile u16 *)V850E2_LBC_ADDR(n)) -/* SDRAM configuration */ -#define V850E2_SCR_ADDR(n) (0xFFFFF4A0 + (n) * 4) -#define V850E2_SCR(n) (*(volatile u16 *)V850E2_SCR_ADDR(n)) -/* SDRAM refresh cycle control */ -#define V850E2_RFS_ADDR(n) (0xFFFFF4A2 + (n) * 4) -#define V850E2_RFS(n) (*(volatile u16 *)V850E2_RFS_ADDR(n)) - - -#endif /* __V850_V850E2_H__ */ diff --git a/include/asm-v850/v850e2_cache.h b/include/asm-v850/v850e2_cache.h deleted file mode 100644 index 87edf0d311d5..000000000000 --- a/include/asm-v850/v850e2_cache.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - * include/asm-v850/v850e2_cache_cache.h -- Cache control for V850E2 - * cache memories - * - * Copyright (C) 2003,05 NEC Electronics Corporation - * Copyright (C) 2003,05 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_V850E2_CACHE_H__ -#define __V850_V850E2_CACHE_H__ - -#include - - -/* Cache control registers. */ - -/* Bus Transaction Control */ -#define V850E2_CACHE_BTSC_ADDR 0xFFFFF070 -#define V850E2_CACHE_BTSC (*(volatile u16 *)V850E2_CACHE_BTSC_ADDR) -#define V850E2_CACHE_BTSC_ICM 0x0001 /* icache enable */ -#define V850E2_CACHE_BTSC_DCM0 0x0004 /* dcache enable, bit 0 */ -#define V850E2_CACHE_BTSC_DCM1 0x0008 /* dcache enable, bit 1 */ -#define V850E2_CACHE_BTSC_DCM_WT /* write-through */ \ - V850E2_CACHE_BTSC_DCM0 -#ifdef CONFIG_V850E2_V850E2S -# define V850E2_CACHE_BTSC_DCM_WB_NO_ALLOC /* write-back, non-alloc */ \ - V850E2_CACHE_BTSC_DCM1 -# define V850E2_CACHE_BTSC_DCM_WB_ALLOC /* write-back, non-alloc */ \ - (V850E2_CACHE_BTSC_DCM1 | V850E2_CACHE_BTSC_DCM0) -# define V850E2_CACHE_BTSC_ISEQ 0x0010 /* icache `address sequence mode' */ -# define V850E2_CACHE_BTSC_DSEQ 0x0020 /* dcache `address sequence mode' */ -# define V850E2_CACHE_BTSC_IRFC 0x0030 -# define V850E2_CACHE_BTSC_ILCD 0x4000 -# define V850E2_CACHE_BTSC_VABE 0x8000 -#endif /* CONFIG_V850E2_V850E2S */ - -/* Cache operation start address register (low-bits). */ -#define V850E2_CACHE_CADL_ADDR 0xFFFFF074 -#define V850E2_CACHE_CADL (*(volatile u16 *)V850E2_CACHE_CADL_ADDR) -/* Cache operation start address register (high-bits). */ -#define V850E2_CACHE_CADH_ADDR 0xFFFFF076 -#define V850E2_CACHE_CADH (*(volatile u16 *)V850E2_CACHE_CADH_ADDR) -/* Cache operation count register. */ -#define V850E2_CACHE_CCNT_ADDR 0xFFFFF078 -#define V850E2_CACHE_CCNT (*(volatile u16 *)V850E2_CACHE_CCNT_ADDR) -/* Cache operation specification register. */ -#define V850E2_CACHE_COPR_ADDR 0xFFFFF07A -#define V850E2_CACHE_COPR (*(volatile u16 *)V850E2_CACHE_COPR_ADDR) -#define V850E2_CACHE_COPR_STRT 0x0001 /* start cache operation */ -#define V850E2_CACHE_COPR_LBSL 0x0100 /* 0 = icache, 1 = dcache */ -#define V850E2_CACHE_COPR_WSLE 0x0200 /* operate on cache way */ -#define V850E2_CACHE_COPR_WSL(way) ((way) * 0x0400) /* way select */ -#define V850E2_CACHE_COPR_CFC(op) ((op) * 0x1000) /* cache function code */ - - -/* Size of a cache line in bytes. */ -#define V850E2_CACHE_LINE_SIZE_BITS 4 -#define V850E2_CACHE_LINE_SIZE (1 << V850E2_CACHE_LINE_SIZE_BITS) - -/* The size of each cache `way' in lines. */ -#define V850E2_CACHE_WAY_SIZE 256 - - -/* For */ -#define L1_CACHE_BYTES V850E2_CACHE_LINE_SIZE -#define L1_CACHE_SHIFT V850E2_CACHE_LINE_SIZE_BITS - - -#endif /* __V850_V850E2_CACHE_H__ */ diff --git a/include/asm-v850/v850e_cache.h b/include/asm-v850/v850e_cache.h deleted file mode 100644 index aa7d7eb9da50..000000000000 --- a/include/asm-v850/v850e_cache.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * include/asm-v850/v850e_cache.h -- Cache control for V850E cache memories - * - * Copyright (C) 2001,03 NEC Electronics Corporation - * Copyright (C) 2001,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -/* This file implements cache control for the rather simple cache used on - some V850E CPUs, specifically the NB85E/TEG CPU-core and the V850E/ME2 - CPU. V850E2 processors have their own (better) cache - implementation. */ - -#ifndef __V850_V850E_CACHE_H__ -#define __V850_V850E_CACHE_H__ - -#include - - -/* Cache control registers. */ -#define V850E_CACHE_BHC_ADDR 0xFFFFF06A -#define V850E_CACHE_BHC (*(volatile u16 *)V850E_CACHE_BHC_ADDR) -#define V850E_CACHE_ICC_ADDR 0xFFFFF070 -#define V850E_CACHE_ICC (*(volatile u16 *)V850E_CACHE_ICC_ADDR) -#define V850E_CACHE_ISI_ADDR 0xFFFFF072 -#define V850E_CACHE_ISI (*(volatile u16 *)V850E_CACHE_ISI_ADDR) -#define V850E_CACHE_DCC_ADDR 0xFFFFF078 -#define V850E_CACHE_DCC (*(volatile u16 *)V850E_CACHE_DCC_ADDR) - -/* Size of a cache line in bytes. */ -#define V850E_CACHE_LINE_SIZE 16 - -/* For */ -#define L1_CACHE_BYTES V850E_CACHE_LINE_SIZE - - -#if defined(__KERNEL__) && !defined(__ASSEMBLY__) -/* Set caching params via the BHC, ICC, and DCC registers. */ -void v850e_cache_enable (u16 bhc, u16 icc, u16 dcc); -#endif /* __KERNEL__ && !__ASSEMBLY__ */ - - -#endif /* __V850_V850E_CACHE_H__ */ diff --git a/include/asm-v850/v850e_intc.h b/include/asm-v850/v850e_intc.h deleted file mode 100644 index 6fdf95708317..000000000000 --- a/include/asm-v850/v850e_intc.h +++ /dev/null @@ -1,133 +0,0 @@ -/* - * include/asm-v850/v850e_intc.h -- V850E CPU interrupt controller (INTC) - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_V850E_INTC_H__ -#define __V850_V850E_INTC_H__ - - -/* There are 4 16-bit `Interrupt Mask Registers' located contiguously - starting from this base. Each interrupt uses a single bit to - indicated enabled/disabled status. */ -#define V850E_INTC_IMR_BASE_ADDR 0xFFFFF100 -#define V850E_INTC_IMR_ADDR(irq) (V850E_INTC_IMR_BASE_ADDR + ((irq) >> 3)) -#define V850E_INTC_IMR_BIT(irq) ((irq) & 0x7) - -/* Each maskable interrupt has a single-byte control register at this - address. */ -#define V850E_INTC_IC_BASE_ADDR 0xFFFFF110 -#define V850E_INTC_IC_ADDR(irq) (V850E_INTC_IC_BASE_ADDR + ((irq) << 1)) -#define V850E_INTC_IC(irq) (*(volatile u8 *)V850E_INTC_IC_ADDR(irq)) -/* Encode priority PR for storing in an interrupt control register. */ -#define V850E_INTC_IC_PR(pr) (pr) -/* Interrupt disable bit in an interrupt control register. */ -#define V850E_INTC_IC_MK_BIT 6 -#define V850E_INTC_IC_MK (1 << V850E_INTC_IC_MK_BIT) -/* Interrupt pending flag in an interrupt control register. */ -#define V850E_INTC_IC_IF_BIT 7 -#define V850E_INTC_IC_IF (1 << V850E_INTC_IC_IF_BIT) - -/* The ISPR (In-service priority register) contains one bit for each interrupt - priority level, which is set to one when that level is currently being - serviced (and thus blocking any interrupts of equal or lesser level). */ -#define V850E_INTC_ISPR_ADDR 0xFFFFF1FA -#define V850E_INTC_ISPR (*(volatile u8 *)V850E_INTC_ISPR_ADDR) - - -#ifndef __ASSEMBLY__ - -/* Enable interrupt handling for interrupt IRQ. */ -static inline void v850e_intc_enable_irq (unsigned irq) -{ - __asm__ __volatile__ ("clr1 %0, [%1]" - :: "r" (V850E_INTC_IMR_BIT (irq)), - "r" (V850E_INTC_IMR_ADDR (irq)) - : "memory"); -} - -/* Disable interrupt handling for interrupt IRQ. Note that any - interrupts received while disabled will be delivered once the - interrupt is enabled again, unless they are explicitly cleared using - `v850e_intc_clear_pending_irq'. */ -static inline void v850e_intc_disable_irq (unsigned irq) -{ - __asm__ __volatile__ ("set1 %0, [%1]" - :: "r" (V850E_INTC_IMR_BIT (irq)), - "r" (V850E_INTC_IMR_ADDR (irq)) - : "memory"); -} - -/* Return true if interrupt handling for interrupt IRQ is enabled. */ -static inline int v850e_intc_irq_enabled (unsigned irq) -{ - int rval; - __asm__ __volatile__ ("tst1 %1, [%2]; setf z, %0" - : "=r" (rval) - : "r" (V850E_INTC_IMR_BIT (irq)), - "r" (V850E_INTC_IMR_ADDR (irq))); - return rval; -} - -/* Disable irqs from 0 until LIMIT. LIMIT must be a multiple of 8. */ -static inline void _v850e_intc_disable_irqs (unsigned limit) -{ - unsigned long addr; - for (addr = V850E_INTC_IMR_BASE_ADDR; limit >= 8; addr++, limit -= 8) - *(char *)addr = 0xFF; -} - -/* Disable all irqs. This is purposely a macro, because NUM_MACH_IRQS - will be only be defined later. */ -#define v850e_intc_disable_irqs() _v850e_intc_disable_irqs (NUM_MACH_IRQS) - -/* Clear any pending interrupts for IRQ. */ -static inline void v850e_intc_clear_pending_irq (unsigned irq) -{ - __asm__ __volatile__ ("clr1 %0, 0[%1]" - :: "i" (V850E_INTC_IC_IF_BIT), - "r" (V850E_INTC_IC_ADDR (irq)) - : "memory"); -} - -/* Return true if interrupt IRQ is pending (but disabled). */ -static inline int v850e_intc_irq_pending (unsigned irq) -{ - int rval; - __asm__ __volatile__ ("tst1 %1, 0[%2]; setf nz, %0" - : "=r" (rval) - : "i" (V850E_INTC_IC_IF_BIT), - "r" (V850E_INTC_IC_ADDR (irq))); - return rval; -} - - -struct v850e_intc_irq_init { - const char *name; /* name of interrupt type */ - - /* Range of kernel irq numbers for this type: - BASE, BASE+INTERVAL, ..., BASE+INTERVAL*NUM */ - unsigned base, num, interval; - - unsigned priority; /* interrupt priority to assign */ -}; -struct hw_interrupt_type; /* fwd decl */ - -/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array - INITS (which is terminated by an entry with the name field == 0). */ -extern void v850e_intc_init_irq_types (struct v850e_intc_irq_init *inits, - struct hw_interrupt_type *hw_irq_types); - - -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_V850E_INTC_H__ */ diff --git a/include/asm-v850/v850e_timer_c.h b/include/asm-v850/v850e_timer_c.h deleted file mode 100644 index f70575df6ea9..000000000000 --- a/include/asm-v850/v850e_timer_c.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * include/asm-v850/v850e_timer_c.h -- `Timer C' component often used - * with the V850E cpu core - * - * Copyright (C) 2001,03 NEC Electronics Corporation - * Copyright (C) 2001,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -/* NOTE: this include file currently contains only enough to allow us to - use timer C as an interrupt pass-through. */ - -#ifndef __V850_V850E_TIMER_C_H__ -#define __V850_V850E_TIMER_C_H__ - -#include -#include /* Pick up chip-specific defs. */ - - -/* Timer C (16-bit interval timers). */ - -/* Control register 0 for timer C. */ -#define V850E_TIMER_C_TMCC0_ADDR(n) (V850E_TIMER_C_BASE_ADDR + 0x6 + 0x10 *(n)) -#define V850E_TIMER_C_TMCC0(n) (*(volatile u8 *)V850E_TIMER_C_TMCC0_ADDR(n)) -#define V850E_TIMER_C_TMCC0_CAE 0x01 /* clock action enable */ -#define V850E_TIMER_C_TMCC0_CE 0x02 /* count enable */ -/* ... */ - -/* Control register 1 for timer C. */ -#define V850E_TIMER_C_TMCC1_ADDR(n) (V850E_TIMER_C_BASE_ADDR + 0x8 + 0x10 *(n)) -#define V850E_TIMER_C_TMCC1(n) (*(volatile u8 *)V850E_TIMER_C_TMCC1_ADDR(n)) -#define V850E_TIMER_C_TMCC1_CMS0 0x01 /* capture/compare mode select (ccc0) */ -#define V850E_TIMER_C_TMCC1_CMS1 0x02 /* capture/compare mode select (ccc1) */ -/* ... */ - -/* Interrupt edge-sensitivity control for timer C. */ -#define V850E_TIMER_C_SESC_ADDR(n) (V850E_TIMER_C_BASE_ADDR + 0x9 + 0x10 *(n)) -#define V850E_TIMER_C_SESC(n) (*(volatile u8 *)V850E_TIMER_C_SESC_ADDR(n)) - -/* ...etc... */ - - -#endif /* __V850_V850E_TIMER_C_H__ */ diff --git a/include/asm-v850/v850e_timer_d.h b/include/asm-v850/v850e_timer_d.h deleted file mode 100644 index 417612c5b22f..000000000000 --- a/include/asm-v850/v850e_timer_d.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * include/asm-v850/v850e_timer_d.h -- `Timer D' component often used - * with the V850E cpu core - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_V850E_TIMER_D_H__ -#define __V850_V850E_TIMER_D_H__ - -#include -#include /* Pick up chip-specific defs. */ - - -/* Timer D (16-bit interval timers). */ - -/* Count registers for timer D. */ -#define V850E_TIMER_D_TMD_ADDR(n) (V850E_TIMER_D_TMD_BASE_ADDR + 0x10 * (n)) -#define V850E_TIMER_D_TMD(n) (*(volatile u16 *)V850E_TIMER_D_TMD_ADDR(n)) - -/* Count compare registers for timer D. */ -#define V850E_TIMER_D_CMD_ADDR(n) (V850E_TIMER_D_CMD_BASE_ADDR + 0x10 * (n)) -#define V850E_TIMER_D_CMD(n) (*(volatile u16 *)V850E_TIMER_D_CMD_ADDR(n)) - -/* Control registers for timer D. */ -#define V850E_TIMER_D_TMCD_ADDR(n) (V850E_TIMER_D_TMCD_BASE_ADDR + 0x10 * (n)) -#define V850E_TIMER_D_TMCD(n) (*(volatile u8 *)V850E_TIMER_D_TMCD_ADDR(n)) -/* Control bits for timer D. */ -#define V850E_TIMER_D_TMCD_CE 0x2 /* count enable */ -#define V850E_TIMER_D_TMCD_CAE 0x1 /* clock action enable */ -/* Clock divider setting (log2). */ -#define V850E_TIMER_D_TMCD_CS(divlog2) (((divlog2) - V850E_TIMER_D_TMCD_CS_MIN) << 4) -/* Minimum clock divider setting (log2). */ -#ifndef V850E_TIMER_D_TMCD_CS_MIN /* Can be overridden by mach-specific hdrs */ -#define V850E_TIMER_D_TMCD_CS_MIN 2 /* Default is correct for the v850e/ma1 */ -#endif -/* Maximum clock divider setting (log2). */ -#define V850E_TIMER_D_TMCD_CS_MAX (V850E_TIMER_D_TMCD_CS_MIN + 7) - -/* Return the clock-divider (log2) of timer D unit N. */ -#define V850E_TIMER_D_DIVLOG2(n) \ - (((V850E_TIMER_D_TMCD(n) >> 4) & 0x7) + V850E_TIMER_D_TMCD_CS_MIN) - - -#ifndef __ASSEMBLY__ - -/* Start interval timer TIMER (0-3). The timer will issue the - corresponding INTCMD interrupt RATE times per second. This function - does not enable the interrupt. */ -extern void v850e_timer_d_configure (unsigned timer, unsigned rate); - -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_V850E_TIMER_D_H__ */ diff --git a/include/asm-v850/v850e_uart.h b/include/asm-v850/v850e_uart.h deleted file mode 100644 index 5182fb4cc989..000000000000 --- a/include/asm-v850/v850e_uart.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * include/asm-v850/v850e_uart.h -- common V850E on-chip UART driver - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -/* There's not actually a single UART implementation used by V850E CPUs, - but rather a series of implementations that are all `close' to one - another. This file corresponds to the single driver which handles all - of them. */ - -#ifndef __V850_V850E_UART_H__ -#define __V850_V850E_UART_H__ - -#include - -#include -#include -#include /* Pick up chip-specific defs. */ - - -/* Include model-specific definitions. */ -#ifdef CONFIG_V850E_UART -# ifdef CONFIG_V850E_UARTB -# include -# else -# include /* original V850E UART */ -# endif -#endif - - -/* Optional capabilities some hardware provides. */ - -/* This UART doesn't implement RTS/CTS by default, but some platforms - implement them externally, so check to see if defined - anything. */ -#ifdef V850E_UART_CTS -#define v850e_uart_cts(n) V850E_UART_CTS(n) -#else -#define v850e_uart_cts(n) (1) -#endif - -/* Do the same for RTS. */ -#ifdef V850E_UART_SET_RTS -#define v850e_uart_set_rts(n,v) V850E_UART_SET_RTS(n,v) -#else -#define v850e_uart_set_rts(n,v) ((void)0) -#endif - - -/* This is the serial channel to use for the boot console (if desired). */ -#ifndef V850E_UART_CONSOLE_CHANNEL -# define V850E_UART_CONSOLE_CHANNEL 0 -#endif - - -#ifndef __ASSEMBLY__ - -/* Setup a console using channel 0 of the builtin uart. */ -extern void v850e_uart_cons_init (unsigned chan); - -/* Configure and turn on uart channel CHAN, using the termios `control - modes' bits in CFLAGS, and a baud-rate of BAUD. */ -void v850e_uart_configure (unsigned chan, unsigned cflags, unsigned baud); - -#endif /* !__ASSEMBLY__ */ - - -#endif /* __V850_V850E_UART_H__ */ diff --git a/include/asm-v850/v850e_uarta.h b/include/asm-v850/v850e_uarta.h deleted file mode 100644 index e483e0950725..000000000000 --- a/include/asm-v850/v850e_uarta.h +++ /dev/null @@ -1,278 +0,0 @@ -/* - * include/asm-v850/v850e_uarta.h -- original V850E on-chip UART - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -/* This is the original V850E UART implementation is called just `UART' in - the docs, but we name this header file because the - name is used for the common driver that handles both - `UART' and `UARTB' implementations. */ - -#ifndef __V850_V850E_UARTA_H__ -#define __V850_V850E_UARTA_H__ - - -/* Raw hardware interface. */ - -/* The base address of the UART control registers for channel N. - The default is the address used on the V850E/MA1. */ -#ifndef V850E_UART_BASE_ADDR -#define V850E_UART_BASE_ADDR(n) (0xFFFFFA00 + 0x10 * (n)) -#endif - -/* Addresses of specific UART control registers for channel N. - The defaults are the addresses used on the V850E/MA1; if a platform - wants to redefine any of these, it must redefine them all. */ -#ifndef V850E_UART_ASIM_ADDR -#define V850E_UART_ASIM_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x0) -#define V850E_UART_RXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x2) -#define V850E_UART_ASIS_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x3) -#define V850E_UART_TXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x4) -#define V850E_UART_ASIF_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x5) -#define V850E_UART_CKSR_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x6) -#define V850E_UART_BRGC_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x7) -#endif - -/* UART config registers. */ -#define V850E_UART_ASIM(n) (*(volatile u8 *)V850E_UART_ASIM_ADDR(n)) -/* Control bits for config registers. */ -#define V850E_UART_ASIM_CAE 0x80 /* clock enable */ -#define V850E_UART_ASIM_TXE 0x40 /* transmit enable */ -#define V850E_UART_ASIM_RXE 0x20 /* receive enable */ -#define V850E_UART_ASIM_PS_MASK 0x18 /* mask covering parity-select bits */ -#define V850E_UART_ASIM_PS_NONE 0x00 /* no parity */ -#define V850E_UART_ASIM_PS_ZERO 0x08 /* zero parity */ -#define V850E_UART_ASIM_PS_ODD 0x10 /* odd parity */ -#define V850E_UART_ASIM_PS_EVEN 0x18 /* even parity */ -#define V850E_UART_ASIM_CL_8 0x04 /* char len is 8 bits (otherwise, 7) */ -#define V850E_UART_ASIM_SL_2 0x02 /* 2 stop bits (otherwise, 1) */ -#define V850E_UART_ASIM_ISRM 0x01 /* generate INTSR interrupt on errors - (otherwise, generate INTSER) */ - -/* UART serial interface status registers. */ -#define V850E_UART_ASIS(n) (*(volatile u8 *)V850E_UART_ASIS_ADDR(n)) -/* Control bits for status registers. */ -#define V850E_UART_ASIS_PE 0x04 /* parity error */ -#define V850E_UART_ASIS_FE 0x02 /* framing error */ -#define V850E_UART_ASIS_OVE 0x01 /* overrun error */ - -/* UART serial interface transmission status registers. */ -#define V850E_UART_ASIF(n) (*(volatile u8 *)V850E_UART_ASIF_ADDR(n)) -#define V850E_UART_ASIF_TXBF 0x02 /* transmit buffer flag (data in TXB) */ -#define V850E_UART_ASIF_TXSF 0x01 /* transmit shift flag (sending data) */ - -/* UART receive buffer register. */ -#define V850E_UART_RXB(n) (*(volatile u8 *)V850E_UART_RXB_ADDR(n)) - -/* UART transmit buffer register. */ -#define V850E_UART_TXB(n) (*(volatile u8 *)V850E_UART_TXB_ADDR(n)) - -/* UART baud-rate generator control registers. */ -#define V850E_UART_CKSR(n) (*(volatile u8 *)V850E_UART_CKSR_ADDR(n)) -#define V850E_UART_CKSR_MAX 11 -#define V850E_UART_BRGC(n) (*(volatile u8 *)V850E_UART_BRGC_ADDR(n)) -#define V850E_UART_BRGC_MIN 8 - - -#ifndef V850E_UART_CKSR_MAX_FREQ -#define V850E_UART_CKSR_MAX_FREQ (25*1000*1000) -#endif - -/* Calculate the minimum value for CKSR on this processor. */ -static inline unsigned v850e_uart_cksr_min (void) -{ - int min = 0; - unsigned freq = V850E_UART_BASE_FREQ; - while (freq > V850E_UART_CKSR_MAX_FREQ) { - freq >>= 1; - min++; - } - return min; -} - - -/* Slightly abstract interface used by driver. */ - - -/* Interrupts used by the UART. */ - -/* Received when the most recently transmitted character has been sent. */ -#define V850E_UART_TX_IRQ(chan) IRQ_INTST (chan) -/* Received when a new character has been received. */ -#define V850E_UART_RX_IRQ(chan) IRQ_INTSR (chan) - - -/* UART clock generator interface. */ - -/* This type encapsulates a particular uart frequency. */ -typedef struct { - unsigned clk_divlog2; - unsigned brgen_count; -} v850e_uart_speed_t; - -/* Calculate a uart speed from BAUD for this uart. */ -static inline v850e_uart_speed_t v850e_uart_calc_speed (unsigned baud) -{ - v850e_uart_speed_t speed; - - /* Calculate the log2 clock divider and baud-rate counter values - (note that the UART divides the resulting clock by 2, so - multiply BAUD by 2 here to compensate). */ - calc_counter_params (V850E_UART_BASE_FREQ, baud * 2, - v850e_uart_cksr_min(), - V850E_UART_CKSR_MAX, 8/*bits*/, - &speed.clk_divlog2, &speed.brgen_count); - - return speed; -} - -/* Return the current speed of uart channel CHAN. */ -static inline v850e_uart_speed_t v850e_uart_speed (unsigned chan) -{ - v850e_uart_speed_t speed; - speed.clk_divlog2 = V850E_UART_CKSR (chan); - speed.brgen_count = V850E_UART_BRGC (chan); - return speed; -} - -/* Set the current speed of uart channel CHAN. */ -static inline void v850e_uart_set_speed(unsigned chan,v850e_uart_speed_t speed) -{ - V850E_UART_CKSR (chan) = speed.clk_divlog2; - V850E_UART_BRGC (chan) = speed.brgen_count; -} - -static inline int -v850e_uart_speed_eq (v850e_uart_speed_t speed1, v850e_uart_speed_t speed2) -{ - return speed1.clk_divlog2 == speed2.clk_divlog2 - && speed1.brgen_count == speed2.brgen_count; -} - -/* Minimum baud rate possible. */ -#define v850e_uart_min_baud() \ - ((V850E_UART_BASE_FREQ >> V850E_UART_CKSR_MAX) / (2 * 255) + 1) - -/* Maximum baud rate possible. The error is quite high at max, though. */ -#define v850e_uart_max_baud() \ - ((V850E_UART_BASE_FREQ >> v850e_uart_cksr_min()) / (2 *V850E_UART_BRGC_MIN)) - -/* The `maximum' clock rate the uart can used, which is wanted (though not - really used in any useful way) by the serial framework. */ -#define v850e_uart_max_clock() \ - ((V850E_UART_BASE_FREQ >> v850e_uart_cksr_min()) / 2) - - -/* UART configuration interface. */ - -/* Type of the uart config register; must be a scalar. */ -typedef u16 v850e_uart_config_t; - -/* The uart hardware config register for channel CHAN. */ -#define V850E_UART_CONFIG(chan) V850E_UART_ASIM (chan) - -/* This config bit set if the uart is enabled. */ -#define V850E_UART_CONFIG_ENABLED V850E_UART_ASIM_CAE -/* If the uart _isn't_ enabled, store this value to it to do so. */ -#define V850E_UART_CONFIG_INIT V850E_UART_ASIM_CAE -/* Store this config value to disable the uart channel completely. */ -#define V850E_UART_CONFIG_FINI 0 - -/* Setting/clearing these bits enable/disable TX/RX, respectively (but - otherwise generally leave things running). */ -#define V850E_UART_CONFIG_RX_ENABLE V850E_UART_ASIM_RXE -#define V850E_UART_CONFIG_TX_ENABLE V850E_UART_ASIM_TXE - -/* These masks define which config bits affect TX/RX modes, respectively. */ -#define V850E_UART_CONFIG_RX_BITS \ - (V850E_UART_ASIM_PS_MASK | V850E_UART_ASIM_CL_8 | V850E_UART_ASIM_ISRM) -#define V850E_UART_CONFIG_TX_BITS \ - (V850E_UART_ASIM_PS_MASK | V850E_UART_ASIM_CL_8 | V850E_UART_ASIM_SL_2) - -static inline v850e_uart_config_t v850e_uart_calc_config (unsigned cflags) -{ - v850e_uart_config_t config = 0; - - /* Figure out new configuration of control register. */ - if (cflags & CSTOPB) - /* Number of stop bits, 1 or 2. */ - config |= V850E_UART_ASIM_SL_2; - if ((cflags & CSIZE) == CS8) - /* Number of data bits, 7 or 8. */ - config |= V850E_UART_ASIM_CL_8; - if (! (cflags & PARENB)) - /* No parity check/generation. */ - config |= V850E_UART_ASIM_PS_NONE; - else if (cflags & PARODD) - /* Odd parity check/generation. */ - config |= V850E_UART_ASIM_PS_ODD; - else - /* Even parity check/generation. */ - config |= V850E_UART_ASIM_PS_EVEN; - if (cflags & CREAD) - /* Reading enabled. */ - config |= V850E_UART_ASIM_RXE; - - config |= V850E_UART_ASIM_CAE; - config |= V850E_UART_ASIM_TXE; /* Writing is always enabled. */ - config |= V850E_UART_ASIM_ISRM; /* Errors generate a read-irq. */ - - return config; -} - -/* This should delay as long as necessary for a recently written config - setting to settle, before we turn the uart back on. */ -static inline void -v850e_uart_config_delay (v850e_uart_config_t config, v850e_uart_speed_t speed) -{ - /* The UART may not be reset properly unless we wait at least 2 - `basic-clocks' until turning on the TXE/RXE bits again. - A `basic clock' is the clock used by the baud-rate generator, - i.e., the cpu clock divided by the 2^new_clk_divlog2. - The loop takes 2 insns, so loop CYCLES / 2 times. */ - register unsigned count = 1 << speed.clk_divlog2; - while (--count != 0) - /* nothing */; -} - - -/* RX/TX interface. */ - -/* Return true if all characters awaiting transmission on uart channel N - have been transmitted. */ -#define v850e_uart_xmit_done(n) \ - (! (V850E_UART_ASIF(n) & V850E_UART_ASIF_TXBF)) -/* Wait for this to be true. */ -#define v850e_uart_wait_for_xmit_done(n) \ - do { } while (! v850e_uart_xmit_done (n)) - -/* Return true if uart channel N is ready to transmit a character. */ -#define v850e_uart_xmit_ok(n) \ - (v850e_uart_xmit_done(n) && v850e_uart_cts(n)) -/* Wait for this to be true. */ -#define v850e_uart_wait_for_xmit_ok(n) \ - do { } while (! v850e_uart_xmit_ok (n)) - -/* Write character CH to uart channel CHAN. */ -#define v850e_uart_putc(chan, ch) (V850E_UART_TXB(chan) = (ch)) - -/* Return latest character read on channel CHAN. */ -#define v850e_uart_getc(chan) V850E_UART_RXB (chan) - -/* Return bit-mask of uart error status. */ -#define v850e_uart_err(chan) V850E_UART_ASIS (chan) -/* Various error bits set in the error result. */ -#define V850E_UART_ERR_OVERRUN V850E_UART_ASIS_OVE -#define V850E_UART_ERR_FRAME V850E_UART_ASIS_FE -#define V850E_UART_ERR_PARITY V850E_UART_ASIS_PE - - -#endif /* __V850_V850E_UARTA_H__ */ diff --git a/include/asm-v850/v850e_uartb.h b/include/asm-v850/v850e_uartb.h deleted file mode 100644 index 6d4767d5a835..000000000000 --- a/include/asm-v850/v850e_uartb.h +++ /dev/null @@ -1,262 +0,0 @@ -/* - * include/asm-v850/v850e_uartb.h -- V850E on-chip `UARTB' UART - * - * Copyright (C) 2001,02,03 NEC Electronics Corporation - * Copyright (C) 2001,02,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -/* The V850E UARTB is basically a superset of the original V850E UART, but - even where it's the same, the names and details have changed a bit. - It's similar enough to use the same driver (v850e_uart.c), but the - details have been abstracted slightly to do so. */ - -#ifndef __V850_V850E_UARTB_H__ -#define __V850_V850E_UARTB_H__ - - -/* Raw hardware interface. */ - -#define V850E_UARTB_BASE_ADDR(n) (0xFFFFFA00 + 0x10 * (n)) - -/* Addresses of specific UART control registers for channel N. */ -#define V850E_UARTB_CTL0_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x0) -#define V850E_UARTB_CTL2_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x2) -#define V850E_UARTB_STR_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x4) -#define V850E_UARTB_RX_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x6) -#define V850E_UARTB_RXAP_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x6) -#define V850E_UARTB_TX_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x8) -#define V850E_UARTB_FIC0_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xA) -#define V850E_UARTB_FIC1_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xB) -#define V850E_UARTB_FIC2_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xC) -#define V850E_UARTB_FIS0_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xE) -#define V850E_UARTB_FIS1_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xF) - -/* UARTB control register 0 (general config). */ -#define V850E_UARTB_CTL0(n) (*(volatile u8 *)V850E_UARTB_CTL0_ADDR(n)) -/* Control bits for config registers. */ -#define V850E_UARTB_CTL0_PWR 0x80 /* clock enable */ -#define V850E_UARTB_CTL0_TXE 0x40 /* transmit enable */ -#define V850E_UARTB_CTL0_RXE 0x20 /* receive enable */ -#define V850E_UARTB_CTL0_DIR 0x10 /* */ -#define V850E_UARTB_CTL0_PS1 0x08 /* parity */ -#define V850E_UARTB_CTL0_PS0 0x04 /* parity */ -#define V850E_UARTB_CTL0_CL 0x02 /* char len 1:8bit, 0:7bit */ -#define V850E_UARTB_CTL0_SL 0x01 /* stop bit 1:2bit, 0:1bit */ -#define V850E_UARTB_CTL0_PS_MASK 0x0C /* mask covering parity bits */ -#define V850E_UARTB_CTL0_PS_NONE 0x00 /* no parity */ -#define V850E_UARTB_CTL0_PS_ZERO 0x04 /* zero parity */ -#define V850E_UARTB_CTL0_PS_ODD 0x08 /* odd parity */ -#define V850E_UARTB_CTL0_PS_EVEN 0x0C /* even parity */ -#define V850E_UARTB_CTL0_CL_8 0x02 /* char len 1:8bit, 0:7bit */ -#define V850E_UARTB_CTL0_SL_2 0x01 /* stop bit 1:2bit, 0:1bit */ - -/* UARTB control register 2 (clock divider). */ -#define V850E_UARTB_CTL2(n) (*(volatile u16 *)V850E_UARTB_CTL2_ADDR(n)) -#define V850E_UARTB_CTL2_MIN 4 -#define V850E_UARTB_CTL2_MAX 0xFFFF - -/* UARTB serial interface status register. */ -#define V850E_UARTB_STR(n) (*(volatile u8 *)V850E_UARTB_STR_ADDR(n)) -/* Control bits for status registers. */ -#define V850E_UARTB_STR_TSF 0x80 /* UBTX or FIFO exist data */ -#define V850E_UARTB_STR_OVF 0x08 /* overflow error */ -#define V850E_UARTB_STR_PE 0x04 /* parity error */ -#define V850E_UARTB_STR_FE 0x02 /* framing error */ -#define V850E_UARTB_STR_OVE 0x01 /* overrun error */ - -/* UARTB receive data register. */ -#define V850E_UARTB_RX(n) (*(volatile u8 *)V850E_UARTB_RX_ADDR(n)) -#define V850E_UARTB_RXAP(n) (*(volatile u16 *)V850E_UARTB_RXAP_ADDR(n)) -/* Control bits for status registers. */ -#define V850E_UARTB_RXAP_PEF 0x0200 /* parity error */ -#define V850E_UARTB_RXAP_FEF 0x0100 /* framing error */ - -/* UARTB transmit data register. */ -#define V850E_UARTB_TX(n) (*(volatile u8 *)V850E_UARTB_TX_ADDR(n)) - -/* UARTB FIFO control register 0. */ -#define V850E_UARTB_FIC0(n) (*(volatile u8 *)V850E_UARTB_FIC0_ADDR(n)) - -/* UARTB FIFO control register 1. */ -#define V850E_UARTB_FIC1(n) (*(volatile u8 *)V850E_UARTB_FIC1_ADDR(n)) - -/* UARTB FIFO control register 2. */ -#define V850E_UARTB_FIC2(n) (*(volatile u16 *)V850E_UARTB_FIC2_ADDR(n)) - -/* UARTB FIFO status register 0. */ -#define V850E_UARTB_FIS0(n) (*(volatile u8 *)V850E_UARTB_FIS0_ADDR(n)) - -/* UARTB FIFO status register 1. */ -#define V850E_UARTB_FIS1(n) (*(volatile u8 *)V850E_UARTB_FIS1_ADDR(n)) - - -/* Slightly abstract interface used by driver. */ - - -/* Interrupts used by the UART. */ - -/* Received when the most recently transmitted character has been sent. */ -#define V850E_UART_TX_IRQ(chan) IRQ_INTUBTIT (chan) -/* Received when a new character has been received. */ -#define V850E_UART_RX_IRQ(chan) IRQ_INTUBTIR (chan) - -/* Use by serial driver for information purposes. */ -#define V850E_UART_BASE_ADDR(chan) V850E_UARTB_BASE_ADDR(chan) - - -/* UART clock generator interface. */ - -/* This type encapsulates a particular uart frequency. */ -typedef u16 v850e_uart_speed_t; - -/* Calculate a uart speed from BAUD for this uart. */ -static inline v850e_uart_speed_t v850e_uart_calc_speed (unsigned baud) -{ - v850e_uart_speed_t speed; - - /* - * V850E/ME2 UARTB baud rate is determined by the value of UBCTL2 - * fx = V850E_UARTB_BASE_FREQ = CPU_CLOCK_FREQ/4 - * baud = fx / 2*speed [ speed >= 4 ] - */ - speed = V850E_UARTB_CTL2_MIN; - while (((V850E_UARTB_BASE_FREQ / 2) / speed ) > baud) - speed++; - - return speed; -} - -/* Return the current speed of uart channel CHAN. */ -#define v850e_uart_speed(chan) V850E_UARTB_CTL2 (chan) - -/* Set the current speed of uart channel CHAN. */ -#define v850e_uart_set_speed(chan, speed) (V850E_UARTB_CTL2 (chan) = (speed)) - -/* Return true if SPEED1 and SPEED2 are the same. */ -#define v850e_uart_speed_eq(speed1, speed2) ((speed1) == (speed2)) - -/* Minimum baud rate possible. */ -#define v850e_uart_min_baud() \ - ((V850E_UARTB_BASE_FREQ / 2) / V850E_UARTB_CTL2_MAX) - -/* Maximum baud rate possible. The error is quite high at max, though. */ -#define v850e_uart_max_baud() \ - ((V850E_UARTB_BASE_FREQ / 2) / V850E_UARTB_CTL2_MIN) - -/* The `maximum' clock rate the uart can used, which is wanted (though not - really used in any useful way) by the serial framework. */ -#define v850e_uart_max_clock() \ - (V850E_UARTB_BASE_FREQ / 2) - - -/* UART configuration interface. */ - -/* Type of the uart config register; must be a scalar. */ -typedef u16 v850e_uart_config_t; - -/* The uart hardware config register for channel CHAN. */ -#define V850E_UART_CONFIG(chan) V850E_UARTB_CTL0 (chan) - -/* This config bit set if the uart is enabled. */ -#define V850E_UART_CONFIG_ENABLED V850E_UARTB_CTL0_PWR -/* If the uart _isn't_ enabled, store this value to it to do so. */ -#define V850E_UART_CONFIG_INIT V850E_UARTB_CTL0_PWR -/* Store this config value to disable the uart channel completely. */ -#define V850E_UART_CONFIG_FINI 0 - -/* Setting/clearing these bits enable/disable TX/RX, respectively (but - otherwise generally leave things running). */ -#define V850E_UART_CONFIG_RX_ENABLE V850E_UARTB_CTL0_RXE -#define V850E_UART_CONFIG_TX_ENABLE V850E_UARTB_CTL0_TXE - -/* These masks define which config bits affect TX/RX modes, respectively. */ -#define V850E_UART_CONFIG_RX_BITS \ - (V850E_UARTB_CTL0_PS_MASK | V850E_UARTB_CTL0_CL_8) -#define V850E_UART_CONFIG_TX_BITS \ - (V850E_UARTB_CTL0_PS_MASK | V850E_UARTB_CTL0_CL_8 | V850E_UARTB_CTL0_SL_2) - -static inline v850e_uart_config_t v850e_uart_calc_config (unsigned cflags) -{ - v850e_uart_config_t config = 0; - - /* Figure out new configuration of control register. */ - if (cflags & CSTOPB) - /* Number of stop bits, 1 or 2. */ - config |= V850E_UARTB_CTL0_SL_2; - if ((cflags & CSIZE) == CS8) - /* Number of data bits, 7 or 8. */ - config |= V850E_UARTB_CTL0_CL_8; - if (! (cflags & PARENB)) - /* No parity check/generation. */ - config |= V850E_UARTB_CTL0_PS_NONE; - else if (cflags & PARODD) - /* Odd parity check/generation. */ - config |= V850E_UARTB_CTL0_PS_ODD; - else - /* Even parity check/generation. */ - config |= V850E_UARTB_CTL0_PS_EVEN; - if (cflags & CREAD) - /* Reading enabled. */ - config |= V850E_UARTB_CTL0_RXE; - - config |= V850E_UARTB_CTL0_PWR; - config |= V850E_UARTB_CTL0_TXE; /* Writing is always enabled. */ - config |= V850E_UARTB_CTL0_DIR; /* LSB first. */ - - return config; -} - -/* This should delay as long as necessary for a recently written config - setting to settle, before we turn the uart back on. */ -static inline void -v850e_uart_config_delay (v850e_uart_config_t config, v850e_uart_speed_t speed) -{ - /* The UART may not be reset properly unless we wait at least 2 - `basic-clocks' until turning on the TXE/RXE bits again. - A `basic clock' is the clock used by the baud-rate generator, - i.e., the cpu clock divided by the 2^new_clk_divlog2. - The loop takes 2 insns, so loop CYCLES / 2 times. */ - register unsigned count = 1 << speed; - while (--count != 0) - /* nothing */; -} - - -/* RX/TX interface. */ - -/* Return true if all characters awaiting transmission on uart channel N - have been transmitted. */ -#define v850e_uart_xmit_done(n) \ - (! (V850E_UARTB_STR(n) & V850E_UARTB_STR_TSF)) -/* Wait for this to be true. */ -#define v850e_uart_wait_for_xmit_done(n) \ - do { } while (! v850e_uart_xmit_done (n)) - -/* Return true if uart channel N is ready to transmit a character. */ -#define v850e_uart_xmit_ok(n) \ - (v850e_uart_xmit_done(n) && v850e_uart_cts(n)) -/* Wait for this to be true. */ -#define v850e_uart_wait_for_xmit_ok(n) \ - do { } while (! v850e_uart_xmit_ok (n)) - -/* Write character CH to uart channel CHAN. */ -#define v850e_uart_putc(chan, ch) (V850E_UARTB_TX(chan) = (ch)) - -/* Return latest character read on channel CHAN. */ -#define v850e_uart_getc(chan) V850E_UARTB_RX (chan) - -/* Return bit-mask of uart error status. */ -#define v850e_uart_err(chan) V850E_UARTB_STR (chan) -/* Various error bits set in the error result. */ -#define V850E_UART_ERR_OVERRUN V850E_UARTB_STR_OVE -#define V850E_UART_ERR_FRAME V850E_UARTB_STR_FE -#define V850E_UART_ERR_PARITY V850E_UARTB_STR_PE - - -#endif /* __V850_V850E_UARTB_H__ */ diff --git a/include/asm-v850/v850e_utils.h b/include/asm-v850/v850e_utils.h deleted file mode 100644 index 52eb72822d3d..000000000000 --- a/include/asm-v850/v850e_utils.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * include/asm-v850/v850e_utils.h -- Utility functions associated with - * V850E CPUs - * - * Copyright (C) 2001,03 NEC Electronics Corporation - * Copyright (C) 2001,03 Miles Bader - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * - * Written by Miles Bader - */ - -#ifndef __V850_V850E_UTILS_H__ -#define __V850_V850E_UTILS_H__ - -/* Calculate counter clock-divider and count values to attain the - desired frequency RATE from the base frequency BASE_FREQ. The - counter is expected to have a clock-divider, which can divide the - system cpu clock by a power of two value from MIN_DIVLOG2 to - MAX_DIV_LOG2, and a word-size of COUNTER_SIZE bits (the counter - counts up and resets whenever it's equal to the compare register, - generating an interrupt or whatever when it does so). The returned - values are: *DIVLOG2 -- log2 of the desired clock divider and *COUNT - -- the counter compare value to use. Returns true if it was possible - to find a reasonable value, otherwise false (and the other return - values will be set to be as good as possible). */ -extern int calc_counter_params (unsigned long base_freq, - unsigned long rate, - unsigned min_divlog2, unsigned max_divlog2, - unsigned counter_size, - unsigned *divlog2, unsigned *count); - -#endif /* __V850_V850E_UTILS_H__ */ diff --git a/include/linux/audit.h b/include/linux/audit.h index 8b82974bdc12..6272a395d43c 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -286,7 +286,6 @@ #define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_SPARC (EM_SPARC) #define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT) -#define AUDIT_ARCH_V850 (EM_V850|__AUDIT_ARCH_LE) #define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_PERM_EXEC 1 diff --git a/include/linux/module.h b/include/linux/module.h index fce15ebd0e1c..68e09557c951 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -23,7 +23,7 @@ /* Not Yet Implemented */ #define MODULE_SUPPORTED_DEVICE(name) -/* v850 toolchain uses a `_' prefix for all user symbols */ +/* some toolchains uses a `_' prefix for all user symbols */ #ifndef MODULE_SYMBOL_PREFIX #define MODULE_SYMBOL_PREFIX "" #endif diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index f3a1c0e45021..3b2f6c04855e 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -59,9 +59,6 @@ #define PORT_SUNZILOG 38 #define PORT_SUNSAB 39 -/* NEC v850. */ -#define PORT_V850E_UART 40 - /* DEC */ #define PORT_DZ 46 #define PORT_ZS 47 diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 0522f368f9d7..4394dadff813 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -443,7 +443,7 @@ asmlinkage long sys_newuname(struct new_utsname __user *name); asmlinkage long sys_getrlimit(unsigned int resource, struct rlimit __user *rlim); -#if defined(COMPAT_RLIM_OLD_INFINITY) || !(defined(CONFIG_IA64) || defined(CONFIG_V850)) +#if defined(COMPAT_RLIM_OLD_INFINITY) || !(defined(CONFIG_IA64)) asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); #endif asmlinkage long sys_setrlimit(unsigned int resource, diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c index dca5e0dd09bf..4f8a3007e457 100644 --- a/scripts/genksyms/genksyms.c +++ b/scripts/genksyms/genksyms.c @@ -520,8 +520,7 @@ int main(int argc, char **argv) genksyms_usage(); return 1; } - if ((strcmp(arch, "v850") == 0) || (strcmp(arch, "h8300") == 0) - || (strcmp(arch, "blackfin") == 0)) + if ((strcmp(arch, "h8300") == 0) || (strcmp(arch, "blackfin") == 0)) mod_prefix = "_"; { extern int yydebug; diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 1fcaf3284a6a..4fa1f3ad2513 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -623,7 +623,7 @@ static int do_i2c_entry(const char *filename, struct i2c_device_id *id, return 1; } -/* Ignore any prefix, eg. v850 prepends _ */ +/* Ignore any prefix, eg. some architectures prepend _ */ static inline int sym_is(const char *symbol, const char *name) { const char *match; diff --git a/scripts/mod/mk_elfconfig.c b/scripts/mod/mk_elfconfig.c index db3881f14c2d..6a96d47bd1e6 100644 --- a/scripts/mod/mk_elfconfig.c +++ b/scripts/mod/mk_elfconfig.c @@ -55,7 +55,7 @@ main(int argc, char **argv) else exit(1); - if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0) + if ((strcmp(argv[1], "h8300") == 0) || (strcmp(argv[1], "blackfin") == 0)) printf("#define MODULE_SYMBOL_PREFIX \"_\"\n"); else -- cgit v1.2.3 From a677a039be7243357d93502bff2b40850c942e2d Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:17 -0700 Subject: flag parameters: socket and socketpair This patch adds support for flag values which are ORed to the type passwd to socket and socketpair. The additional code is minimal. The flag values in this implementation can and must match the O_* flags. This avoids overhead in the conversion. The internal functions sock_alloc_fd and sock_map_fd get a new parameters and all callers are changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #define PORT 57392 /* For Linux these must be the same. */ #define SOCK_CLOEXEC O_CLOEXEC int main (void) { int fd; fd = socket (PF_INET, SOCK_STREAM, 0); if (fd == -1) { puts ("socket(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("socket(0) set close-on-exec flag"); return 1; } close (fd); fd = socket (PF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0); if (fd == -1) { puts ("socket(SOCK_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("socket(SOCK_CLOEXEC) does not set close-on-exec flag"); return 1; } close (fd); int fds[2]; if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1) { puts ("socketpair(0) failed"); return 1; } for (int i = 0; i < 2; ++i) { coe = fcntl (fds[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { printf ("socketpair(0) set close-on-exec flag for fds[%d]\n", i); return 1; } close (fds[i]); } if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, fds) == -1) { puts ("socketpair(SOCK_CLOEXEC) failed"); return 1; } for (int i = 0; i < 2; ++i) { coe = fcntl (fds[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { printf ("socketpair(SOCK_CLOEXEC) does not set close-on-exec flag for fds[%d]\n", i); return 1; } close (fds[i]); } puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: "David S. Miller" Cc: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-mips/socket.h | 7 +++++++ include/linux/net.h | 9 ++++++++- net/9p/trans_fd.c | 2 +- net/sctp/socket.c | 2 +- net/socket.c | 28 ++++++++++++++++++++-------- 5 files changed, 37 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/asm-mips/socket.h b/include/asm-mips/socket.h index 63f60254d308..facc2d7a87ca 100644 --- a/include/asm-mips/socket.h +++ b/include/asm-mips/socket.h @@ -102,6 +102,13 @@ enum sock_type { }; #define SOCK_MAX (SOCK_PACKET + 1) +/* Mask which covers at least up to SOCK_MASK-1. The + * * remaining bits are used as flags. */ +#define SOCK_TYPE_MASK 0xf + +/* Flags for socket, socketpair, paccept */ +#define SOCK_CLOEXEC O_CLOEXEC +#define SOCK_NONBLOCK O_NONBLOCK #define ARCH_HAS_SOCKET_TYPES 1 diff --git a/include/linux/net.h b/include/linux/net.h index 150a48c68d52..8b5383c45b45 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -20,6 +20,7 @@ #include #include +#include /* For O_CLOEXEC */ #include struct poll_table_struct; @@ -94,6 +95,12 @@ enum sock_type { }; #define SOCK_MAX (SOCK_PACKET + 1) +/* Mask which covers at least up to SOCK_MASK-1. The + * remaining bits are used as flags. */ +#define SOCK_TYPE_MASK 0xf + +/* Flags for socket, socketpair, paccept */ +#define SOCK_CLOEXEC O_CLOEXEC #endif /* ARCH_HAS_SOCKET_TYPES */ @@ -208,7 +215,7 @@ extern int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len); extern int sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags); -extern int sock_map_fd(struct socket *sock); +extern int sock_map_fd(struct socket *sock, int flags); extern struct socket *sockfd_lookup(int fd, int *err); #define sockfd_put(sock) fput(sock->file) extern int net_ratelimit(void); diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 4507f744f44e..cdf137af7adc 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -1285,7 +1285,7 @@ static int p9_socket_open(struct p9_trans *trans, struct socket *csocket) int fd, ret; csocket->sk->sk_allocation = GFP_NOIO; - fd = sock_map_fd(csocket); + fd = sock_map_fd(csocket, 0); if (fd < 0) { P9_EPRINTK(KERN_ERR, "p9_socket_open: failed to map fd\n"); return fd; diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 79bece16aede..dbb79adf8f3c 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3910,7 +3910,7 @@ static int sctp_getsockopt_peeloff(struct sock *sk, int len, char __user *optval goto out; /* Map the socket to an unused fd that can be returned to the user. */ - retval = sock_map_fd(newsock); + retval = sock_map_fd(newsock, 0); if (retval < 0) { sock_release(newsock); goto out; diff --git a/net/socket.c b/net/socket.c index 1ba57d888981..64601f900352 100644 --- a/net/socket.c +++ b/net/socket.c @@ -349,11 +349,11 @@ static struct dentry_operations sockfs_dentry_operations = { * but we take care of internal coherence yet. */ -static int sock_alloc_fd(struct file **filep) +static int sock_alloc_fd(struct file **filep, int flags) { int fd; - fd = get_unused_fd(); + fd = get_unused_fd_flags(flags); if (likely(fd >= 0)) { struct file *file = get_empty_filp(); @@ -396,10 +396,10 @@ static int sock_attach_fd(struct socket *sock, struct file *file) return 0; } -int sock_map_fd(struct socket *sock) +int sock_map_fd(struct socket *sock, int flags) { struct file *newfile; - int fd = sock_alloc_fd(&newfile); + int fd = sock_alloc_fd(&newfile, flags); if (likely(fd >= 0)) { int err = sock_attach_fd(sock, newfile); @@ -1218,12 +1218,18 @@ asmlinkage long sys_socket(int family, int type, int protocol) { int retval; struct socket *sock; + int flags; + + flags = type & ~SOCK_TYPE_MASK; + if (flags & ~SOCK_CLOEXEC) + return -EINVAL; + type &= SOCK_TYPE_MASK; retval = sock_create(family, type, protocol, &sock); if (retval < 0) goto out; - retval = sock_map_fd(sock); + retval = sock_map_fd(sock, flags & O_CLOEXEC); if (retval < 0) goto out_release; @@ -1246,6 +1252,12 @@ asmlinkage long sys_socketpair(int family, int type, int protocol, struct socket *sock1, *sock2; int fd1, fd2, err; struct file *newfile1, *newfile2; + int flags; + + flags = type & ~SOCK_TYPE_MASK; + if (flags & ~SOCK_CLOEXEC) + return -EINVAL; + type &= SOCK_TYPE_MASK; /* * Obtain the first socket and check if the underlying protocol @@ -1264,13 +1276,13 @@ asmlinkage long sys_socketpair(int family, int type, int protocol, if (err < 0) goto out_release_both; - fd1 = sock_alloc_fd(&newfile1); + fd1 = sock_alloc_fd(&newfile1, flags & O_CLOEXEC); if (unlikely(fd1 < 0)) { err = fd1; goto out_release_both; } - fd2 = sock_alloc_fd(&newfile2); + fd2 = sock_alloc_fd(&newfile2, flags & O_CLOEXEC); if (unlikely(fd2 < 0)) { err = fd2; put_filp(newfile1); @@ -1426,7 +1438,7 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, */ __module_get(newsock->ops->owner); - newfd = sock_alloc_fd(&newfile); + newfd = sock_alloc_fd(&newfile, 0); if (unlikely(newfd < 0)) { err = newfd; sock_release(newsock); -- cgit v1.2.3 From aaca0bdca573f3f51ea03139f9c7289541e7bca3 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:20 -0700 Subject: flag parameters: paccept This patch is by far the most complex in the series. It adds a new syscall paccept. This syscall differs from accept in that it adds (at the userlevel) two additional parameters: - a signal mask - a flags value The flags parameter can be used to set flag like SOCK_CLOEXEC. This is imlpemented here as well. Some people argued that this is a property which should be inherited from the file desriptor for the server but this is against POSIX. Additionally, we really want the signal mask parameter as well (similar to pselect, ppoll, etc). So an interface change in inevitable. The flag value is the same as for socket and socketpair. I think diverging here will only create confusion. Similar to the filesystem interfaces where the use of the O_* constants differs, it is acceptable here. The signal mask is handled as for pselect etc. The mask is temporarily installed for the thread and removed before the call returns. I modeled the code after pselect. If there is a problem it's likely also in pselect. For architectures which use socketcall I maintained this interface instead of adding a system call. The symmetry shouldn't be broken. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #include #include #include #include #ifndef __NR_paccept # ifdef __x86_64__ # define __NR_paccept 288 # elif defined __i386__ # define SYS_PACCEPT 18 # define USE_SOCKETCALL 1 # else # error "need __NR_paccept" # endif #endif #ifdef USE_SOCKETCALL # define paccept(fd, addr, addrlen, mask, flags) \ ({ long args[6] = { \ (long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \ syscall (__NR_socketcall, SYS_PACCEPT, args); }) #else # define paccept(fd, addr, addrlen, mask, flags) \ syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags) #endif #define PORT 57392 #define SOCK_CLOEXEC O_CLOEXEC static pthread_barrier_t b; static void * tf (void *arg) { pthread_barrier_wait (&b); int s = socket (AF_INET, SOCK_STREAM, 0); struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); sin.sin_port = htons (PORT); connect (s, (const struct sockaddr *) &sin, sizeof (sin)); close (s); pthread_barrier_wait (&b); s = socket (AF_INET, SOCK_STREAM, 0); sin.sin_port = htons (PORT); connect (s, (const struct sockaddr *) &sin, sizeof (sin)); close (s); pthread_barrier_wait (&b); pthread_barrier_wait (&b); sleep (2); pthread_kill ((pthread_t) arg, SIGUSR1); return NULL; } static void handler (int s) { } int main (void) { pthread_barrier_init (&b, NULL, 2); struct sockaddr_in sin; pthread_t th; if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0) { puts ("pthread_create failed"); return 1; } int s = socket (AF_INET, SOCK_STREAM, 0); int reuse = 1; setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse)); sin.sin_family = AF_INET; sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); sin.sin_port = htons (PORT); bind (s, (struct sockaddr *) &sin, sizeof (sin)); listen (s, SOMAXCONN); pthread_barrier_wait (&b); int s2 = paccept (s, NULL, 0, NULL, 0); if (s2 < 0) { puts ("paccept(0) failed"); return 1; } int coe = fcntl (s2, F_GETFD); if (coe & FD_CLOEXEC) { puts ("paccept(0) set close-on-exec-flag"); return 1; } close (s2); pthread_barrier_wait (&b); s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC); if (s2 < 0) { puts ("paccept(SOCK_CLOEXEC) failed"); return 1; } coe = fcntl (s2, F_GETFD); if ((coe & FD_CLOEXEC) == 0) { puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag"); return 1; } close (s2); pthread_barrier_wait (&b); struct sigaction sa; sa.sa_handler = handler; sa.sa_flags = 0; sigemptyset (&sa.sa_mask); sigaction (SIGUSR1, &sa, NULL); sigset_t ss; pthread_sigmask (SIG_SETMASK, NULL, &ss); sigaddset (&ss, SIGUSR1); pthread_sigmask (SIG_SETMASK, &ss, NULL); sigdelset (&ss, SIGUSR1); alarm (4); pthread_barrier_wait (&b); errno = 0 ; s2 = paccept (s, NULL, 0, &ss, 0); if (s2 != -1 || errno != EINTR) { puts ("paccept did not fail with EINTR"); return 1; } close (s); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [akpm@linux-foundation.org: make it compile] [akpm@linux-foundation.org: add sys_ni stub] Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Cc: "David S. Miller" Cc: Roland McGrath Cc: Kyle McMartin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-alpha/socket.h | 5 +++ include/asm-parisc/socket.h | 5 +++ include/asm-x86/unistd_64.h | 2 ++ include/linux/net.h | 3 ++ include/linux/syscalls.h | 2 ++ kernel/sys_ni.c | 1 + net/compat.c | 52 ++++++++++++++++++++++++++--- net/socket.c | 81 ++++++++++++++++++++++++++++++++++++++++----- 8 files changed, 139 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/asm-alpha/socket.h b/include/asm-alpha/socket.h index 08c979319929..a1057c2d95e7 100644 --- a/include/asm-alpha/socket.h +++ b/include/asm-alpha/socket.h @@ -62,4 +62,9 @@ #define SO_MARK 36 +/* O_NONBLOCK clashes with the bits used for socket types. Therefore we + * have to define SOCK_NONBLOCK to a different value here. + */ +#define SOCK_NONBLOCK 0x40000000 + #endif /* _ASM_SOCKET_H */ diff --git a/include/asm-parisc/socket.h b/include/asm-parisc/socket.h index 69a7a0d30b02..fba402c95ac2 100644 --- a/include/asm-parisc/socket.h +++ b/include/asm-parisc/socket.h @@ -54,4 +54,9 @@ #define SO_MARK 0x401f +/* O_NONBLOCK clashes with the bits used for socket types. Therefore we + * have to define SOCK_NONBLOCK to a different value here. + */ +#define SOCK_NONBLOCK 0x40000000 + #endif /* _ASM_SOCKET_H */ diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index 9c1a4a3470d9..e323994a370f 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -639,6 +639,8 @@ __SYSCALL(__NR_fallocate, sys_fallocate) __SYSCALL(__NR_timerfd_settime, sys_timerfd_settime) #define __NR_timerfd_gettime 287 __SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime) +#define __NR_paccept 288 +__SYSCALL(__NR_paccept, sys_paccept) #ifndef __NO_STUBS diff --git a/include/linux/net.h b/include/linux/net.h index 8b5383c45b45..3a9b06d4d0fe 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -47,6 +47,7 @@ struct net; #define SYS_GETSOCKOPT 15 /* sys_getsockopt(2) */ #define SYS_SENDMSG 16 /* sys_sendmsg(2) */ #define SYS_RECVMSG 17 /* sys_recvmsg(2) */ +#define SYS_PACCEPT 18 /* sys_paccept(2) */ typedef enum { SS_FREE = 0, /* not allocated */ @@ -219,6 +220,8 @@ extern int sock_map_fd(struct socket *sock, int flags); extern struct socket *sockfd_lookup(int fd, int *err); #define sockfd_put(sock) fput(sock->file) extern int net_ratelimit(void); +extern long do_accept(int fd, struct sockaddr __user *upeer_sockaddr, + int __user *upeer_addrlen, int flags); #define net_random() random32() #define net_srandom(seed) srandom32((__force u32)seed) diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 4394dadff813..2a2a40af6b2c 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -409,6 +409,8 @@ asmlinkage long sys_getsockopt(int fd, int level, int optname, asmlinkage long sys_bind(int, struct sockaddr __user *, int); asmlinkage long sys_connect(int, struct sockaddr __user *, int); asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); +asmlinkage long sys_paccept(int, struct sockaddr __user *, int __user *, + const sigset_t *, size_t, int); asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); asmlinkage long sys_send(int, void __user *, size_t, unsigned); diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 0fea0ee12da9..2f0b8a2e600f 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -31,6 +31,7 @@ cond_syscall(sys_socketpair); cond_syscall(sys_bind); cond_syscall(sys_listen); cond_syscall(sys_accept); +cond_syscall(sys_paccept); cond_syscall(sys_connect); cond_syscall(sys_getsockname); cond_syscall(sys_getpeername); diff --git a/net/compat.c b/net/compat.c index 6e1b03b51933..67fb6a3834a3 100644 --- a/net/compat.c +++ b/net/compat.c @@ -722,9 +722,10 @@ EXPORT_SYMBOL(compat_mc_getsockopt); /* Argument list sizes for compat_sys_socketcall */ #define AL(x) ((x) * sizeof(u32)) -static unsigned char nas[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3), +static unsigned char nas[19]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3), AL(3),AL(3),AL(4),AL(4),AL(4),AL(6), - AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)}; + AL(6),AL(2),AL(5),AL(5),AL(3),AL(3), + AL(6)}; #undef AL asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags) @@ -737,13 +738,52 @@ asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, uns return sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT); } +asmlinkage long compat_sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr, + int __user *upeer_addrlen, + const compat_sigset_t __user *sigmask, + compat_size_t sigsetsize, int flags) +{ + compat_sigset_t ss32; + sigset_t ksigmask, sigsaved; + int ret; + + if (sigmask) { + if (sigsetsize != sizeof(compat_sigset_t)) + return -EINVAL; + if (copy_from_user(&ss32, sigmask, sizeof(ss32))) + return -EFAULT; + sigset_from_compat(&ksigmask, &ss32); + + sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP)); + sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved); + } + + ret = do_accept(fd, upeer_sockaddr, upeer_addrlen, flags); + + if (ret == -ERESTARTNOHAND) { + /* + * Don't restore the signal mask yet. Let do_signal() deliver + * the signal on the way back to userspace, before the signal + * mask is restored. + */ + if (sigmask) { + memcpy(¤t->saved_sigmask, &sigsaved, + sizeof(sigsaved)); + set_restore_sigmask(); + } + } else if (sigmask) + sigprocmask(SIG_SETMASK, &sigsaved, NULL); + + return ret; +} + asmlinkage long compat_sys_socketcall(int call, u32 __user *args) { int ret; u32 a[6]; u32 a0, a1; - if (call < SYS_SOCKET || call > SYS_RECVMSG) + if (call < SYS_SOCKET || call > SYS_PACCEPT) return -EINVAL; if (copy_from_user(a, args, nas[call])) return -EFAULT; @@ -764,7 +804,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args) ret = sys_listen(a0, a1); break; case SYS_ACCEPT: - ret = sys_accept(a0, compat_ptr(a1), compat_ptr(a[2])); + ret = do_accept(a0, compat_ptr(a1), compat_ptr(a[2]), 0); break; case SYS_GETSOCKNAME: ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2])); @@ -804,6 +844,10 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args) case SYS_RECVMSG: ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]); break; + case SYS_PACCEPT: + ret = compat_sys_paccept(a0, compat_ptr(a1), compat_ptr(a[2]), + compat_ptr(a[3]), a[4], a[5]); + break; default: ret = -EINVAL; break; diff --git a/net/socket.c b/net/socket.c index 64601f900352..a0ce8ad72252 100644 --- a/net/socket.c +++ b/net/socket.c @@ -63,6 +63,7 @@ #include #include #include +#include #include #include #include @@ -1225,6 +1226,9 @@ asmlinkage long sys_socket(int family, int type, int protocol) return -EINVAL; type &= SOCK_TYPE_MASK; + if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) + flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; + retval = sock_create(family, type, protocol, &sock); if (retval < 0) goto out; @@ -1259,6 +1263,9 @@ asmlinkage long sys_socketpair(int family, int type, int protocol, return -EINVAL; type &= SOCK_TYPE_MASK; + if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) + flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; + /* * Obtain the first socket and check if the underlying protocol * supports the socketpair call. @@ -1413,14 +1420,20 @@ asmlinkage long sys_listen(int fd, int backlog) * clean when we restucture accept also. */ -asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, - int __user *upeer_addrlen) +long do_accept(int fd, struct sockaddr __user *upeer_sockaddr, + int __user *upeer_addrlen, int flags) { struct socket *sock, *newsock; struct file *newfile; int err, len, newfd, fput_needed; struct sockaddr_storage address; + if (flags & ~SOCK_CLOEXEC) + return -EINVAL; + + if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) + flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; + sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) goto out; @@ -1438,7 +1451,7 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, */ __module_get(newsock->ops->owner); - newfd = sock_alloc_fd(&newfile, 0); + newfd = sock_alloc_fd(&newfile, flags & O_CLOEXEC); if (unlikely(newfd < 0)) { err = newfd; sock_release(newsock); @@ -1491,6 +1504,50 @@ out_fd: goto out_put; } +asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr, + int __user *upeer_addrlen, + const sigset_t __user *sigmask, + size_t sigsetsize, int flags) +{ + sigset_t ksigmask, sigsaved; + int ret; + + if (sigmask) { + /* XXX: Don't preclude handling different sized sigset_t's. */ + if (sigsetsize != sizeof(sigset_t)) + return -EINVAL; + if (copy_from_user(&ksigmask, sigmask, sizeof(ksigmask))) + return -EFAULT; + + sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP)); + sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved); + } + + ret = do_accept(fd, upeer_sockaddr, upeer_addrlen, flags); + + if (ret < 0 && signal_pending(current)) { + /* + * Don't restore the signal mask yet. Let do_signal() deliver + * the signal on the way back to userspace, before the signal + * mask is restored. + */ + if (sigmask) { + memcpy(¤t->saved_sigmask, &sigsaved, + sizeof(sigsaved)); + set_restore_sigmask(); + } + } else if (sigmask) + sigprocmask(SIG_SETMASK, &sigsaved, NULL); + + return ret; +} + +asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, + int __user *upeer_addrlen) +{ + return do_accept(fd, upeer_sockaddr, upeer_addrlen, 0); +} + /* * Attempt to connect to a socket with the server address. The address * is in user space so we verify it is OK and move it to kernel space. @@ -2011,10 +2068,11 @@ out: /* Argument list sizes for sys_socketcall */ #define AL(x) ((x) * sizeof(unsigned long)) -static const unsigned char nargs[18]={ +static const unsigned char nargs[19]={ AL(0),AL(3),AL(3),AL(3),AL(2),AL(3), AL(3),AL(3),AL(4),AL(4),AL(4),AL(6), - AL(6),AL(2),AL(5),AL(5),AL(3),AL(3) + AL(6),AL(2),AL(5),AL(5),AL(3),AL(3), + AL(6) }; #undef AL @@ -2033,7 +2091,7 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args) unsigned long a0, a1; int err; - if (call < 1 || call > SYS_RECVMSG) + if (call < 1 || call > SYS_PACCEPT) return -EINVAL; /* copy_from_user should be SMP safe. */ @@ -2062,8 +2120,8 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args) break; case SYS_ACCEPT: err = - sys_accept(a0, (struct sockaddr __user *)a1, - (int __user *)a[2]); + do_accept(a0, (struct sockaddr __user *)a1, + (int __user *)a[2], 0); break; case SYS_GETSOCKNAME: err = @@ -2110,6 +2168,13 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args) case SYS_RECVMSG: err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]); break; + case SYS_PACCEPT: + err = + sys_paccept(a0, (struct sockaddr __user *)a1, + (int __user *)a[2], + (const sigset_t __user *) a[3], + a[4], a[5]); + break; default: err = -EINVAL; break; -- cgit v1.2.3 From c019bbc612f6633ede7ed67725cbf68de45ae8a4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:21 -0700 Subject: flag parameters: paccept w/out set_restore_sigmask Some platforms do not have support to restore the signal mask in the return path from a syscall. For those platforms syscalls like pselect are not defined at all. This is, I think, not a good choice for paccept() since paccept() adds more value on top of accept() than just the signal mask handling. Therefore this patch defines a scaled down version of the sys_paccept function for those platforms. It returns -EINVAL in case the signal mask is non-NULL but behaves the same otherwise. Note that I explicitly included . I saw that it is currently included but indirectly two levels down. There is too much risk in relying on this. The header might change and then suddenly the function definition would change without anyone immediately noticing. Signed-off-by: Ulrich Drepper Cc: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/net.h | 3 +++ net/socket.c | 17 +++++++++++++++++ 2 files changed, 20 insertions(+) (limited to 'include') diff --git a/include/linux/net.h b/include/linux/net.h index 3a9b06d4d0fe..39a23af059b4 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -102,6 +102,9 @@ enum sock_type { /* Flags for socket, socketpair, paccept */ #define SOCK_CLOEXEC O_CLOEXEC +#ifndef SOCK_NONBLOCK +#define SOCK_NONBLOCK O_NONBLOCK +#endif #endif /* ARCH_HAS_SOCKET_TYPES */ diff --git a/net/socket.c b/net/socket.c index a0ce8ad72252..d163adff95bf 100644 --- a/net/socket.c +++ b/net/socket.c @@ -69,6 +69,7 @@ #include #include #include +#include #include #include #include @@ -1504,6 +1505,7 @@ out_fd: goto out_put; } +#ifdef HAVE_SET_RESTORE_SIGMASK asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen, const sigset_t __user *sigmask, @@ -1541,6 +1543,21 @@ asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr, return ret; } +#else +asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr, + int __user *upeer_addrlen, + const sigset_t __user *sigmask, + size_t sigsetsize, int flags) +{ + /* The platform does not support restoring the signal mask in the + * return path. So we do not allow using paccept() with a signal + * mask. */ + if (sigmask) + return -EINVAL; + + return do_accept(fd, upeer_sockaddr, upeer_addrlen, flags); +} +#endif asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen) -- cgit v1.2.3 From 7d9dbca34240ebb6ff88d8a29c6c7bffd098f0c1 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:22 -0700 Subject: flag parameters: anon_inode_getfd extension This patch just extends the anon_inode_getfd interface to take an additional parameter with a flag value. The flag value is passed on to get_unused_fd_flags in anticipation for a use with the O_CLOEXEC flag. No actual semantic changes here, the changed callers all pass 0 for now. [akpm@linux-foundation.org: KVM fix] Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/anon_inodes.c | 9 +++++---- fs/eventfd.c | 2 +- fs/eventpoll.c | 2 +- fs/signalfd.c | 3 ++- fs/timerfd.c | 2 +- include/linux/anon_inodes.h | 2 +- virt/kvm/kvm_main.c | 4 ++-- 7 files changed, 13 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c index 977ef208c051..1a4eee620b0d 100644 --- a/fs/anon_inodes.c +++ b/fs/anon_inodes.c @@ -58,8 +58,9 @@ static struct dentry_operations anon_inodefs_dentry_operations = { * of the file * * @name: [in] name of the "class" of the new file - * @fops [in] file operations for the new file - * @priv [in] private data for the new file (will be file's private_data) + * @fops: [in] file operations for the new file + * @priv: [in] private data for the new file (will be file's private_data) + * @flags: [in] flags * * Creates a new file by hooking it on a single inode. This is useful for files * that do not need to have a full-fledged inode in order to operate correctly. @@ -68,7 +69,7 @@ static struct dentry_operations anon_inodefs_dentry_operations = { * setup. Returns new descriptor or -error. */ int anon_inode_getfd(const char *name, const struct file_operations *fops, - void *priv) + void *priv, int flags) { struct qstr this; struct dentry *dentry; @@ -78,7 +79,7 @@ int anon_inode_getfd(const char *name, const struct file_operations *fops, if (IS_ERR(anon_inode_inode)) return -ENODEV; - error = get_unused_fd(); + error = get_unused_fd_flags(flags); if (error < 0) return error; fd = error; diff --git a/fs/eventfd.c b/fs/eventfd.c index 343942deeec1..6094265ca409 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -214,7 +214,7 @@ asmlinkage long sys_eventfd(unsigned int count) * When we call this, the initialization must be complete, since * anon_inode_getfd() will install the fd. */ - fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx); + fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx, 0); if (fd < 0) kfree(ctx); return fd; diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 990c01d2d66b..9392dd968125 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1068,7 +1068,7 @@ asmlinkage long sys_epoll_create(int size) * Creates all the items needed to setup an eventpoll file. That is, * a file structure and a free file descriptor. */ - fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep); + fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep, 0); if (fd < 0) ep_free(ep); diff --git a/fs/signalfd.c b/fs/signalfd.c index 619725644c75..ddb328b74bde 100644 --- a/fs/signalfd.c +++ b/fs/signalfd.c @@ -227,7 +227,8 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas * When we call this, the initialization must be complete, since * anon_inode_getfd() will install the fd. */ - ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx); + ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx, + 0); if (ufd < 0) kfree(ctx); } else { diff --git a/fs/timerfd.c b/fs/timerfd.c index d87d354ec424..77c2bc92cbee 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -198,7 +198,7 @@ asmlinkage long sys_timerfd_create(int clockid, int flags) ctx->clockid = clockid; hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS); - ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx); + ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx, 0); if (ufd < 0) kfree(ctx); diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h index 6129e58ca7c9..e0a0cdc2da43 100644 --- a/include/linux/anon_inodes.h +++ b/include/linux/anon_inodes.h @@ -9,7 +9,7 @@ #define _LINUX_ANON_INODES_H int anon_inode_getfd(const char *name, const struct file_operations *fops, - void *priv); + void *priv, int flags); #endif /* _LINUX_ANON_INODES_H */ diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 904d7b7bd780..a845890b6800 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -902,7 +902,7 @@ static const struct file_operations kvm_vcpu_fops = { */ static int create_vcpu_fd(struct kvm_vcpu *vcpu) { - int fd = anon_inode_getfd("kvm-vcpu", &kvm_vcpu_fops, vcpu); + int fd = anon_inode_getfd("kvm-vcpu", &kvm_vcpu_fops, vcpu, 0); if (fd < 0) kvm_put_kvm(vcpu->kvm); return fd; @@ -1261,7 +1261,7 @@ static int kvm_dev_ioctl_create_vm(void) kvm = kvm_create_vm(); if (IS_ERR(kvm)) return PTR_ERR(kvm); - fd = anon_inode_getfd("kvm-vm", &kvm_vm_fops, kvm); + fd = anon_inode_getfd("kvm-vm", &kvm_vm_fops, kvm, 0); if (fd < 0) kvm_put_kvm(kvm); -- cgit v1.2.3 From 9deb27baedb79759c3ab9435a7d8b841842d56e9 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:24 -0700 Subject: flag parameters: signalfd This patch adds the new signalfd4 syscall. It extends the old signalfd syscall by one parameter which is meant to hold a flag value. In this patch the only flag support is SFD_CLOEXEC which causes the close-on-exec flag for the returned file descriptor to be set. A new name SFD_CLOEXEC is introduced which in this implementation must have the same value as O_CLOEXEC. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #ifndef __NR_signalfd4 # ifdef __x86_64__ # define __NR_signalfd4 289 # elif defined __i386__ # define __NR_signalfd4 327 # else # error "need __NR_signalfd4" # endif #endif #define SFD_CLOEXEC O_CLOEXEC int main (void) { sigset_t ss; sigemptyset (&ss); sigaddset (&ss, SIGUSR1); int fd = syscall (__NR_signalfd4, -1, &ss, 8, 0); if (fd == -1) { puts ("signalfd4(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("signalfd4(0) set close-on-exec flag"); return 1; } close (fd); fd = syscall (__NR_signalfd4, -1, &ss, 8, SFD_CLOEXEC); if (fd == -1) { puts ("signalfd4(SFD_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("signalfd4(SFD_CLOEXEC) does not set close-on-exec flag"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [akpm@linux-foundation.org: add sys_ni stub] Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/ia32/ia32entry.S | 1 + arch/x86/kernel/syscall_table_32.S | 1 + fs/compat.c | 14 ++++++++++---- fs/signalfd.c | 14 ++++++++++++-- include/asm-x86/unistd_32.h | 1 + include/asm-x86/unistd_64.h | 2 ++ include/linux/signalfd.h | 5 +++++ include/linux/syscalls.h | 1 + kernel/sys_ni.c | 1 + 9 files changed, 34 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 021d71bc69b5..c308128b9251 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -826,4 +826,5 @@ ia32_sys_call_table: .quad sys32_fallocate .quad compat_sys_timerfd_settime /* 325 */ .quad compat_sys_timerfd_gettime + .quad compat_sys_signalfd4 ia32_syscall_end: diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index adff5562f5fd..c12a36c9fd51 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -326,3 +326,4 @@ ENTRY(sys_call_table) .long sys_fallocate .long sys_timerfd_settime /* 325 */ .long sys_timerfd_gettime + .long sys_signalfd4 diff --git a/fs/compat.c b/fs/compat.c index b46604281766..106eba28ec5a 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -2131,9 +2131,9 @@ asmlinkage long compat_sys_epoll_pwait(int epfd, #ifdef CONFIG_SIGNALFD -asmlinkage long compat_sys_signalfd(int ufd, - const compat_sigset_t __user *sigmask, - compat_size_t sigsetsize) +asmlinkage long compat_sys_signalfd4(int ufd, + const compat_sigset_t __user *sigmask, + compat_size_t sigsetsize, int flags) { compat_sigset_t ss32; sigset_t tmp; @@ -2148,9 +2148,15 @@ asmlinkage long compat_sys_signalfd(int ufd, if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t))) return -EFAULT; - return sys_signalfd(ufd, ksigmask, sizeof(sigset_t)); + return sys_signalfd4(ufd, ksigmask, sizeof(sigset_t), flags); } +asmlinkage long compat_sys_signalfd(int ufd, + const compat_sigset_t __user *sigmask, + compat_size_t sigsetsize) +{ + return compat_sys_signalfd4(ufd, sigmask, sigsetsize, 0); +} #endif /* CONFIG_SIGNALFD */ #ifdef CONFIG_TIMERFD diff --git a/fs/signalfd.c b/fs/signalfd.c index ddb328b74bde..c8609fa51a13 100644 --- a/fs/signalfd.c +++ b/fs/signalfd.c @@ -205,11 +205,15 @@ static const struct file_operations signalfd_fops = { .read = signalfd_read, }; -asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask) +asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, + size_t sizemask, int flags) { sigset_t sigmask; struct signalfd_ctx *ctx; + if (flags & ~SFD_CLOEXEC) + return -EINVAL; + if (sizemask != sizeof(sigset_t) || copy_from_user(&sigmask, user_mask, sizeof(sigmask))) return -EINVAL; @@ -228,7 +232,7 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas * anon_inode_getfd() will install the fd. */ ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx, - 0); + flags & O_CLOEXEC); if (ufd < 0) kfree(ctx); } else { @@ -250,3 +254,9 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas return ufd; } + +asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, + size_t sizemask) +{ + return sys_signalfd4(ufd, user_mask, sizemask, 0); +} diff --git a/include/asm-x86/unistd_32.h b/include/asm-x86/unistd_32.h index 8317d94771d3..c310371f5613 100644 --- a/include/asm-x86/unistd_32.h +++ b/include/asm-x86/unistd_32.h @@ -332,6 +332,7 @@ #define __NR_fallocate 324 #define __NR_timerfd_settime 325 #define __NR_timerfd_gettime 326 +#define __NR_signalfd4 327 #ifdef __KERNEL__ diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index e323994a370f..e0a9b45b2346 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -641,6 +641,8 @@ __SYSCALL(__NR_timerfd_settime, sys_timerfd_settime) __SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime) #define __NR_paccept 288 __SYSCALL(__NR_paccept, sys_paccept) +#define __NR_signalfd4 289 +__SYSCALL(__NR_signalfd4, sys_signalfd4) #ifndef __NO_STUBS diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h index ea037f28df91..8b3f7b7420a1 100644 --- a/include/linux/signalfd.h +++ b/include/linux/signalfd.h @@ -8,6 +8,11 @@ #ifndef _LINUX_SIGNALFD_H #define _LINUX_SIGNALFD_H +/* For O_CLOEXEC */ +#include + +/* Flags for signalfd4. */ +#define SFD_CLOEXEC O_CLOEXEC struct signalfd_siginfo { __u32 ssi_signo; diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 2a2a40af6b2c..1c2707797845 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -610,6 +610,7 @@ asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, size_t len); asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); +asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); asmlinkage long sys_timerfd_create(int clockid, int flags); asmlinkage long sys_timerfd_settime(int ufd, int flags, const struct itimerspec __user *utmr, diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 2f0b8a2e600f..8627c89ae9e8 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -156,6 +156,7 @@ cond_syscall(sys_ioprio_get); /* New file descriptors */ cond_syscall(sys_signalfd); +cond_syscall(sys_signalfd4); cond_syscall(compat_sys_signalfd); cond_syscall(sys_timerfd_create); cond_syscall(sys_timerfd_settime); -- cgit v1.2.3 From b087498eb5605673b0f260a7620d91818cd72304 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:25 -0700 Subject: flag parameters: eventfd This patch adds the new eventfd2 syscall. It extends the old eventfd syscall by one parameter which is meant to hold a flag value. In this patch the only flag support is EFD_CLOEXEC which causes the close-on-exec flag for the returned file descriptor to be set. A new name EFD_CLOEXEC is introduced which in this implementation must have the same value as O_CLOEXEC. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_eventfd2 # ifdef __x86_64__ # define __NR_eventfd2 290 # elif defined __i386__ # define __NR_eventfd2 328 # else # error "need __NR_eventfd2" # endif #endif #define EFD_CLOEXEC O_CLOEXEC int main (void) { int fd = syscall (__NR_eventfd2, 1, 0); if (fd == -1) { puts ("eventfd2(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("eventfd2(0) sets close-on-exec flag"); return 1; } close (fd); fd = syscall (__NR_eventfd2, 1, EFD_CLOEXEC); if (fd == -1) { puts ("eventfd2(EFD_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("eventfd2(EFD_CLOEXEC) does not set close-on-exec flag"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [akpm@linux-foundation.org: add sys_ni stub] Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/ia32/ia32entry.S | 1 + arch/x86/kernel/syscall_table_32.S | 1 + fs/eventfd.c | 13 +++++++++++-- include/asm-x86/unistd_32.h | 1 + include/asm-x86/unistd_64.h | 2 ++ include/linux/eventfd.h | 6 ++++++ include/linux/syscalls.h | 1 + kernel/sys_ni.c | 1 + 8 files changed, 24 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index c308128b9251..cf0eb31745ca 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -827,4 +827,5 @@ ia32_sys_call_table: .quad compat_sys_timerfd_settime /* 325 */ .quad compat_sys_timerfd_gettime .quad compat_sys_signalfd4 + .quad sys_eventfd2 ia32_syscall_end: diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index c12a36c9fd51..cf112cb11c37 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -327,3 +327,4 @@ ENTRY(sys_call_table) .long sys_timerfd_settime /* 325 */ .long sys_timerfd_gettime .long sys_signalfd4 + .long sys_eventfd2 diff --git a/fs/eventfd.c b/fs/eventfd.c index 6094265ca409..bd420e6478ad 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -198,11 +198,14 @@ struct file *eventfd_fget(int fd) return file; } -asmlinkage long sys_eventfd(unsigned int count) +asmlinkage long sys_eventfd2(unsigned int count, int flags) { int fd; struct eventfd_ctx *ctx; + if (flags & ~EFD_CLOEXEC) + return -EINVAL; + ctx = kmalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; @@ -214,9 +217,15 @@ asmlinkage long sys_eventfd(unsigned int count) * When we call this, the initialization must be complete, since * anon_inode_getfd() will install the fd. */ - fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx, 0); + fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx, + flags & O_CLOEXEC); if (fd < 0) kfree(ctx); return fd; } +asmlinkage long sys_eventfd(unsigned int count) +{ + return sys_eventfd2(count, 0); +} + diff --git a/include/asm-x86/unistd_32.h b/include/asm-x86/unistd_32.h index c310371f5613..edbd8723c939 100644 --- a/include/asm-x86/unistd_32.h +++ b/include/asm-x86/unistd_32.h @@ -333,6 +333,7 @@ #define __NR_timerfd_settime 325 #define __NR_timerfd_gettime 326 #define __NR_signalfd4 327 +#define __NR_eventfd2 328 #ifdef __KERNEL__ diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index e0a9b45b2346..fb059a6feeb1 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -643,6 +643,8 @@ __SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime) __SYSCALL(__NR_paccept, sys_paccept) #define __NR_signalfd4 289 __SYSCALL(__NR_signalfd4, sys_signalfd4) +#define __NR_eventfd2 290 +__SYSCALL(__NR_eventfd2, sys_eventfd2) #ifndef __NO_STUBS diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h index a701399b7fed..a6c0eaedb1b0 100644 --- a/include/linux/eventfd.h +++ b/include/linux/eventfd.h @@ -10,6 +10,12 @@ #ifdef CONFIG_EVENTFD +/* For O_CLOEXEC */ +#include + +/* Flags for eventfd2. */ +#define EFD_CLOEXEC O_CLOEXEC + struct file *eventfd_fget(int fd); int eventfd_signal(struct file *file, int n); diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 1c2707797845..9ab09926a7f2 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -617,6 +617,7 @@ asmlinkage long sys_timerfd_settime(int ufd, int flags, struct itimerspec __user *otmr); asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr); asmlinkage long sys_eventfd(unsigned int count); +asmlinkage long sys_eventfd2(unsigned int count, int flags); asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); int kernel_execve(const char *filename, char *const argv[], char *const envp[]); diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 8627c89ae9e8..2a361ccdc7ca 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -164,3 +164,4 @@ cond_syscall(sys_timerfd_gettime); cond_syscall(compat_sys_timerfd_settime); cond_syscall(compat_sys_timerfd_gettime); cond_syscall(sys_eventfd); +cond_syscall(sys_eventfd2); -- cgit v1.2.3 From 11fcb6c14676023d0bd437841f5dcd670e7990a0 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:26 -0700 Subject: flag parameters: timerfd_create The timerfd_create syscall already has a flags parameter. It just is unused so far. This patch changes this by introducing the TFD_CLOEXEC flag to set the close-on-exec flag for the returned file descriptor. A new name TFD_CLOEXEC is introduced which in this implementation must have the same value as O_CLOEXEC. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #ifndef __NR_timerfd_create # ifdef __x86_64__ # define __NR_timerfd_create 283 # elif defined __i386__ # define __NR_timerfd_create 322 # else # error "need __NR_timerfd_create" # endif #endif #define TFD_CLOEXEC O_CLOEXEC int main (void) { int fd = syscall (__NR_timerfd_create, CLOCK_REALTIME, 0); if (fd == -1) { puts ("timerfd_create(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("timerfd_create(0) set close-on-exec flag"); return 1; } close (fd); fd = syscall (__NR_timerfd_create, CLOCK_REALTIME, TFD_CLOEXEC); if (fd == -1) { puts ("timerfd_create(TFD_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("timerfd_create(TFD_CLOEXEC) set close-on-exec flag"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/timerfd.c | 5 +++-- include/linux/timerfd.h | 5 +++++ 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/fs/timerfd.c b/fs/timerfd.c index 77c2bc92cbee..c6ef5e33cb34 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -184,7 +184,7 @@ asmlinkage long sys_timerfd_create(int clockid, int flags) int ufd; struct timerfd_ctx *ctx; - if (flags) + if (flags & ~TFD_CLOEXEC) return -EINVAL; if (clockid != CLOCK_MONOTONIC && clockid != CLOCK_REALTIME) @@ -198,7 +198,8 @@ asmlinkage long sys_timerfd_create(int clockid, int flags) ctx->clockid = clockid; hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS); - ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx, 0); + ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx, + flags & O_CLOEXEC); if (ufd < 0) kfree(ctx); diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h index cf2b10d75731..96ed97dff00f 100644 --- a/include/linux/timerfd.h +++ b/include/linux/timerfd.h @@ -8,9 +8,14 @@ #ifndef _LINUX_TIMERFD_H #define _LINUX_TIMERFD_H +/* For O_CLOEXEC */ +#include +/* Flags for timerfd_settime. */ #define TFD_TIMER_ABSTIME (1 << 0) +/* Flags for timerfd_create. */ +#define TFD_CLOEXEC O_CLOEXEC #endif /* _LINUX_TIMERFD_H */ -- cgit v1.2.3 From a0998b50c3f0b8fdd265c63e0032f86ebe377dbf Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:27 -0700 Subject: flag parameters: epoll_create This patch adds the new epoll_create2 syscall. It extends the old epoll_create syscall by one parameter which is meant to hold a flag value. In this patch the only flag support is EPOLL_CLOEXEC which causes the close-on-exec flag for the returned file descriptor to be set. A new name EPOLL_CLOEXEC is introduced which in this implementation must have the same value as O_CLOEXEC. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #ifndef __NR_epoll_create2 # ifdef __x86_64__ # define __NR_epoll_create2 291 # elif defined __i386__ # define __NR_epoll_create2 329 # else # error "need __NR_epoll_create2" # endif #endif #define EPOLL_CLOEXEC O_CLOEXEC int main (void) { int fd = syscall (__NR_epoll_create2, 1, 0); if (fd == -1) { puts ("epoll_create2(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("epoll_create2(0) set close-on-exec flag"); return 1; } close (fd); fd = syscall (__NR_epoll_create2, 1, EPOLL_CLOEXEC); if (fd == -1) { puts ("epoll_create2(EPOLL_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("epoll_create2(EPOLL_CLOEXEC) set close-on-exec flag"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/ia32/ia32entry.S | 1 + arch/x86/kernel/syscall_table_32.S | 1 + fs/eventpoll.c | 13 +++++++++++-- include/asm-x86/unistd_32.h | 1 + include/asm-x86/unistd_64.h | 2 ++ include/linux/eventpoll.h | 4 ++++ include/linux/syscalls.h | 1 + 7 files changed, 21 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index cf0eb31745ca..04366f08f424 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -828,4 +828,5 @@ ia32_sys_call_table: .quad compat_sys_timerfd_gettime .quad compat_sys_signalfd4 .quad sys_eventfd2 + .quad sys_epoll_create2 ia32_syscall_end: diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index cf112cb11c37..4d7007ca263d 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -328,3 +328,4 @@ ENTRY(sys_call_table) .long sys_timerfd_gettime .long sys_signalfd4 .long sys_eventfd2 + .long sys_epoll_create2 diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 9392dd968125..3fd4014f3c5a 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1046,11 +1046,14 @@ retry: * RB tree. With the current implementation, the "size" parameter is ignored * (besides sanity checks). */ -asmlinkage long sys_epoll_create(int size) +asmlinkage long sys_epoll_create2(int size, int flags) { int error, fd = -1; struct eventpoll *ep; + if (flags & ~EPOLL_CLOEXEC) + return -EINVAL; + DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d)\n", current, size)); @@ -1068,7 +1071,8 @@ asmlinkage long sys_epoll_create(int size) * Creates all the items needed to setup an eventpoll file. That is, * a file structure and a free file descriptor. */ - fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep, 0); + fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep, + flags & O_CLOEXEC); if (fd < 0) ep_free(ep); @@ -1079,6 +1083,11 @@ error_return: return fd; } +asmlinkage long sys_epoll_create(int size) +{ + return sys_epoll_create2(size, 0); +} + /* * The following function implements the controller interface for * the eventpoll file that enables the insertion/removal/change of diff --git a/include/asm-x86/unistd_32.h b/include/asm-x86/unistd_32.h index edbd8723c939..a37d6b0c4e1e 100644 --- a/include/asm-x86/unistd_32.h +++ b/include/asm-x86/unistd_32.h @@ -334,6 +334,7 @@ #define __NR_timerfd_gettime 326 #define __NR_signalfd4 327 #define __NR_eventfd2 328 +#define __NR_epoll_create2 329 #ifdef __KERNEL__ diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index fb059a6feeb1..a1a4a5b6e5ee 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -645,6 +645,8 @@ __SYSCALL(__NR_paccept, sys_paccept) __SYSCALL(__NR_signalfd4, sys_signalfd4) #define __NR_eventfd2 290 __SYSCALL(__NR_eventfd2, sys_eventfd2) +#define __NR_epoll_create2 291 +__SYSCALL(__NR_epoll_create2, sys_epoll_create2) #ifndef __NO_STUBS diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h index cf79853967ff..1cfaa40059c8 100644 --- a/include/linux/eventpoll.h +++ b/include/linux/eventpoll.h @@ -14,8 +14,12 @@ #ifndef _LINUX_EVENTPOLL_H #define _LINUX_EVENTPOLL_H +/* For O_CLOEXEC */ +#include #include +/* Flags for epoll_create2. */ +#define EPOLL_CLOEXEC O_CLOEXEC /* Valid opcodes to issue to sys_epoll_ctl() */ #define EPOLL_CTL_ADD 1 diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 9ab09926a7f2..85953240f28c 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -430,6 +430,7 @@ asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp); asmlinkage long sys_epoll_create(int size); +asmlinkage long sys_epoll_create2(int size, int flags); asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event); asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, -- cgit v1.2.3 From 336dd1f70ff62d7dd8655228caed4c5bfc818c56 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:29 -0700 Subject: flag parameters: dup2 This patch adds the new dup3 syscall. It extends the old dup2 syscall by one parameter which is meant to hold a flag value. Support for the O_CLOEXEC flag is added in this patch. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #ifndef __NR_dup3 # ifdef __x86_64__ # define __NR_dup3 292 # elif defined __i386__ # define __NR_dup3 330 # else # error "need __NR_dup3" # endif #endif int main (void) { int fd = syscall (__NR_dup3, 1, 4, 0); if (fd == -1) { puts ("dup3(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("dup3(0) set close-on-exec flag"); return 1; } close (fd); fd = syscall (__NR_dup3, 1, 4, O_CLOEXEC); if (fd == -1) { puts ("dup3(O_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("dup3(O_CLOEXEC) set close-on-exec flag"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/ia32/ia32entry.S | 1 + arch/x86/kernel/syscall_table_32.S | 1 + fs/fcntl.c | 15 +++++++++++++-- include/asm-x86/unistd_32.h | 1 + include/asm-x86/unistd_64.h | 2 ++ include/linux/syscalls.h | 1 + 6 files changed, 19 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 04366f08f424..5614a8f7bed4 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -829,4 +829,5 @@ ia32_sys_call_table: .quad compat_sys_signalfd4 .quad sys_eventfd2 .quad sys_epoll_create2 + .quad sys_dup3 /* 330 */ ia32_syscall_end: diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 4d7007ca263d..24a3f1ea6a0e 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -329,3 +329,4 @@ ENTRY(sys_call_table) .long sys_signalfd4 .long sys_eventfd2 .long sys_epoll_create2 + .long sys_dup3 /* 330 */ diff --git a/fs/fcntl.c b/fs/fcntl.c index 330a7d782591..9679fcbdeaa0 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -125,13 +125,16 @@ static int dupfd(struct file *file, unsigned int start, int cloexec) return fd; } -asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd) +asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags) { int err = -EBADF; struct file * file, *tofree; struct files_struct * files = current->files; struct fdtable *fdt; + if ((flags & ~O_CLOEXEC) != 0) + return -EINVAL; + spin_lock(&files->file_lock); if (!(file = fcheck(oldfd))) goto out_unlock; @@ -163,7 +166,10 @@ asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd) rcu_assign_pointer(fdt->fd[newfd], file); FD_SET(newfd, fdt->open_fds); - FD_CLR(newfd, fdt->close_on_exec); + if (flags & O_CLOEXEC) + FD_SET(newfd, fdt->close_on_exec); + else + FD_CLR(newfd, fdt->close_on_exec); spin_unlock(&files->file_lock); if (tofree) @@ -181,6 +187,11 @@ out_fput: goto out; } +asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd) +{ + return sys_dup3(oldfd, newfd, 0); +} + asmlinkage long sys_dup(unsigned int fildes) { int ret = -EBADF; diff --git a/include/asm-x86/unistd_32.h b/include/asm-x86/unistd_32.h index a37d6b0c4e1e..a1f6383bf695 100644 --- a/include/asm-x86/unistd_32.h +++ b/include/asm-x86/unistd_32.h @@ -335,6 +335,7 @@ #define __NR_signalfd4 327 #define __NR_eventfd2 328 #define __NR_epoll_create2 329 +#define __NR_dup3 330 #ifdef __KERNEL__ diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index a1a4a5b6e5ee..f0fb2bd40cdb 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -647,6 +647,8 @@ __SYSCALL(__NR_signalfd4, sys_signalfd4) __SYSCALL(__NR_eventfd2, sys_eventfd2) #define __NR_epoll_create2 291 __SYSCALL(__NR_epoll_create2, sys_epoll_create2) +#define __NR_dup3 292 +__SYSCALL(__NR_dup3, sys_dup3) #ifndef __NO_STUBS diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 85953240f28c..034d3358549e 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -305,6 +305,7 @@ asmlinkage long sys_fcntl64(unsigned int fd, #endif asmlinkage long sys_dup(unsigned int fildes); asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); +asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); -- cgit v1.2.3 From ed8cae8ba01348bfd83333f4648dd807b04d7f08 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:30 -0700 Subject: flag parameters: pipe This patch introduces the new syscall pipe2 which is like pipe but it also takes an additional parameter which takes a flag value. This patch implements the handling of O_CLOEXEC for the flag. I did not add support for the new syscall for the architectures which have a special sys_pipe implementation. I think the maintainers of those archs have the chance to go with the unified implementation but that's up to them. The implementation introduces do_pipe_flags. I did that instead of changing all callers of do_pipe because some of the callers are written in assembler. I would probably screw up changing the assembly code. To avoid breaking code do_pipe is now a small wrapper around do_pipe_flags. Once all callers are changed over to do_pipe_flags the old do_pipe function can be removed. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_pipe2 # ifdef __x86_64__ # define __NR_pipe2 293 # elif defined __i386__ # define __NR_pipe2 331 # else # error "need __NR_pipe2" # endif #endif int main (void) { int fd[2]; if (syscall (__NR_pipe2, fd, 0) != 0) { puts ("pipe2(0) failed"); return 1; } for (int i = 0; i < 2; ++i) { int coe = fcntl (fd[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { printf ("pipe2(0) set close-on-exit for fd[%d]\n", i); return 1; } } close (fd[0]); close (fd[1]); if (syscall (__NR_pipe2, fd, O_CLOEXEC) != 0) { puts ("pipe2(O_CLOEXEC) failed"); return 1; } for (int i = 0; i < 2; ++i) { int coe = fcntl (fd[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { printf ("pipe2(O_CLOEXEC) does not set close-on-exit for fd[%d]\n", i); return 1; } } close (fd[0]); close (fd[1]); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/ia32/sys_ia32.c | 2 +- arch/ia64/kernel/sys_ia64.c | 2 +- arch/mips/kernel/syscall.c | 2 +- arch/parisc/hpux/sys_hpux.c | 2 +- arch/sh/kernel/sys_sh32.c | 2 +- arch/sparc/kernel/sys_sparc.c | 2 +- arch/sparc64/kernel/sys_sparc.c | 2 +- arch/x86/ia32/ia32entry.S | 1 + arch/x86/ia32/sys_ia32.c | 2 +- arch/x86/kernel/syscall_table_32.S | 1 + arch/xtensa/kernel/syscall.c | 2 +- fs/pipe.c | 23 ++++++++++++++++++----- include/asm-x86/unistd_32.h | 1 + include/asm-x86/unistd_64.h | 2 ++ include/linux/fs.h | 1 + 15 files changed, 33 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c index 7e028ceb93ba..465116aecb85 100644 --- a/arch/ia64/ia32/sys_ia32.c +++ b/arch/ia64/ia32/sys_ia32.c @@ -1139,7 +1139,7 @@ sys32_pipe (int __user *fd) int retval; int fds[2]; - retval = do_pipe(fds); + retval = do_pipe_flags(fds, 0); if (retval) goto out; if (copy_to_user(fd, fds, sizeof(fds))) diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c index 1eda194b9559..bcbb6d8792d3 100644 --- a/arch/ia64/kernel/sys_ia64.c +++ b/arch/ia64/kernel/sys_ia64.c @@ -160,7 +160,7 @@ sys_pipe (void) int fd[2]; int retval; - retval = do_pipe(fd); + retval = do_pipe_flags(fd, 0); if (retval) goto out; retval = fd[0]; diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index 3523c8d12eda..343015a2f418 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c @@ -52,7 +52,7 @@ asmlinkage int sysm_pipe(nabi_no_regargs volatile struct pt_regs regs) int fd[2]; int error, res; - error = do_pipe(fd); + error = do_pipe_flags(fd, 0); if (error) { res = error; goto out; diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c index 0c5b9dabb475..be255ebb609c 100644 --- a/arch/parisc/hpux/sys_hpux.c +++ b/arch/parisc/hpux/sys_hpux.c @@ -448,7 +448,7 @@ int hpux_pipe(int *kstack_fildes) int error; lock_kernel(); - error = do_pipe(kstack_fildes); + error = do_pipe_flags(kstack_fildes, 0); unlock_kernel(); return error; } diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c index 125e493ead82..f0aa5c398656 100644 --- a/arch/sh/kernel/sys_sh32.c +++ b/arch/sh/kernel/sys_sh32.c @@ -29,7 +29,7 @@ asmlinkage int sys_pipe(unsigned long r4, unsigned long r5, int fd[2]; int error; - error = do_pipe(fd); + error = do_pipe_flags(fd, 0); if (!error) { regs->regs[1] = fd[1]; return fd[0]; diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c index 3c6b49a53ae8..4d73421559c3 100644 --- a/arch/sparc/kernel/sys_sparc.c +++ b/arch/sparc/kernel/sys_sparc.c @@ -97,7 +97,7 @@ asmlinkage int sparc_pipe(struct pt_regs *regs) int fd[2]; int error; - error = do_pipe(fd); + error = do_pipe_flags(fd, 0); if (error) goto out; regs->u_regs[UREG_I1] = fd[1]; diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c index e1f4eba2e576..39749e32dc7e 100644 --- a/arch/sparc64/kernel/sys_sparc.c +++ b/arch/sparc64/kernel/sys_sparc.c @@ -418,7 +418,7 @@ asmlinkage long sparc_pipe(struct pt_regs *regs) int fd[2]; int error; - error = do_pipe(fd); + error = do_pipe_flags(fd, 0); if (error) goto out; regs->u_regs[UREG_I1] = fd[1]; diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 5614a8f7bed4..18808b164570 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -830,4 +830,5 @@ ia32_sys_call_table: .quad sys_eventfd2 .quad sys_epoll_create2 .quad sys_dup3 /* 330 */ + .quad sys_pipe2 ia32_syscall_end: diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index f00afdf61e67..d3c64088b981 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -238,7 +238,7 @@ asmlinkage long sys32_pipe(int __user *fd) int retval; int fds[2]; - retval = do_pipe(fds); + retval = do_pipe_flags(fds, 0); if (retval) goto out; if (copy_to_user(fd, fds, sizeof(fds))) diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 24a3f1ea6a0e..66154769d52f 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -330,3 +330,4 @@ ENTRY(sys_call_table) .long sys_eventfd2 .long sys_epoll_create2 .long sys_dup3 /* 330 */ + .long sys_pipe2 diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index f3e16efcd47a..ac15ecbdf919 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -49,7 +49,7 @@ asmlinkage long xtensa_pipe(int __user *userfds) int fd[2]; int error; - error = do_pipe(fd); + error = do_pipe_flags(fd, 0); if (!error) { if (copy_to_user(userfds, fd, 2 * sizeof(int))) error = -EFAULT; diff --git a/fs/pipe.c b/fs/pipe.c index 700f4e0d9572..68e82061070c 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -1027,12 +1027,15 @@ struct file *create_read_pipe(struct file *wrf) return f; } -int do_pipe(int *fd) +int do_pipe_flags(int *fd, int flags) { struct file *fw, *fr; int error; int fdw, fdr; + if (flags & ~O_CLOEXEC) + return -EINVAL; + fw = create_write_pipe(); if (IS_ERR(fw)) return PTR_ERR(fw); @@ -1041,12 +1044,12 @@ int do_pipe(int *fd) if (IS_ERR(fr)) goto err_write_pipe; - error = get_unused_fd(); + error = get_unused_fd_flags(flags); if (error < 0) goto err_read_pipe; fdr = error; - error = get_unused_fd(); + error = get_unused_fd_flags(flags); if (error < 0) goto err_fdr; fdw = error; @@ -1074,16 +1077,21 @@ int do_pipe(int *fd) return error; } +int do_pipe(int *fd) +{ + return do_pipe_flags(fd, 0); +} + /* * sys_pipe() is the normal C calling standard for creating * a pipe. It's not the way Unix traditionally does this, though. */ -asmlinkage long __weak sys_pipe(int __user *fildes) +asmlinkage long __weak sys_pipe2(int __user *fildes, int flags) { int fd[2]; int error; - error = do_pipe(fd); + error = do_pipe_flags(fd, flags); if (!error) { if (copy_to_user(fildes, fd, sizeof(fd))) { sys_close(fd[0]); @@ -1094,6 +1102,11 @@ asmlinkage long __weak sys_pipe(int __user *fildes) return error; } +asmlinkage long __weak sys_pipe(int __user *fildes) +{ + return sys_pipe2(fildes, 0); +} + /* * pipefs should _never_ be mounted by userland - too much of security hassle, * no real gain from having the whole whorehouse mounted. So we don't need diff --git a/include/asm-x86/unistd_32.h b/include/asm-x86/unistd_32.h index a1f6383bf695..748a05c77da4 100644 --- a/include/asm-x86/unistd_32.h +++ b/include/asm-x86/unistd_32.h @@ -336,6 +336,7 @@ #define __NR_eventfd2 328 #define __NR_epoll_create2 329 #define __NR_dup3 330 +#define __NR_pipe2 331 #ifdef __KERNEL__ diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index f0fb2bd40cdb..d2284b43ad58 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -649,6 +649,8 @@ __SYSCALL(__NR_eventfd2, sys_eventfd2) __SYSCALL(__NR_epoll_create2, sys_epoll_create2) #define __NR_dup3 292 __SYSCALL(__NR_dup3, sys_dup3) +#define __NR_pipe2 293 +__SYSCALL(__NR_pipe2, sys_pipe2) #ifndef __NO_STUBS diff --git a/include/linux/fs.h b/include/linux/fs.h index e5e6a244096c..0e80cd717d32 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1777,6 +1777,7 @@ static inline void allow_write_access(struct file *file) atomic_inc(&file->f_path.dentry->d_inode->i_writecount); } extern int do_pipe(int *); +extern int do_pipe_flags(int *, int); extern struct file *create_read_pipe(struct file *f); extern struct file *create_write_pipe(void); extern void free_write_pipe(struct file *); -- cgit v1.2.3 From 4006553b06306b34054529477b06b68a1c66249b Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:32 -0700 Subject: flag parameters: inotify_init This patch introduces the new syscall inotify_init1 (note: the 1 stands for the one parameter the syscall takes, as opposed to no parameter before). The values accepted for this parameter are function-specific and defined in the inotify.h header. Here the values must match the O_* flags, though. In this patch CLOEXEC support is introduced. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_inotify_init1 # ifdef __x86_64__ # define __NR_inotify_init1 294 # elif defined __i386__ # define __NR_inotify_init1 332 # else # error "need __NR_inotify_init1" # endif #endif #define IN_CLOEXEC O_CLOEXEC int main (void) { int fd; fd = syscall (__NR_inotify_init1, 0); if (fd == -1) { puts ("inotify_init1(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("inotify_init1(0) set close-on-exit"); return 1; } close (fd); fd = syscall (__NR_inotify_init1, IN_CLOEXEC); if (fd == -1) { puts ("inotify_init1(IN_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("inotify_init1(O_CLOEXEC) does not set close-on-exit"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [akpm@linux-foundation.org: add sys_ni stub] Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/ia32/ia32entry.S | 1 + arch/x86/kernel/syscall_table_32.S | 1 + fs/inotify_user.c | 12 ++++++++++-- include/asm-x86/unistd_32.h | 1 + include/asm-x86/unistd_64.h | 2 ++ include/linux/inotify.h | 5 +++++ include/linux/syscalls.h | 1 + kernel/sys_ni.c | 1 + 8 files changed, 22 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 18808b164570..4541073dd837 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -831,4 +831,5 @@ ia32_sys_call_table: .quad sys_epoll_create2 .quad sys_dup3 /* 330 */ .quad sys_pipe2 + .quad sys_inotify_init1 ia32_syscall_end: diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 66154769d52f..f59aba5ff0f0 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -331,3 +331,4 @@ ENTRY(sys_call_table) .long sys_epoll_create2 .long sys_dup3 /* 330 */ .long sys_pipe2 + .long sys_inotify_init1 diff --git a/fs/inotify_user.c b/fs/inotify_user.c index 6676c06bb7c1..851005998cd4 100644 --- a/fs/inotify_user.c +++ b/fs/inotify_user.c @@ -566,7 +566,7 @@ static const struct inotify_operations inotify_user_ops = { .destroy_watch = free_inotify_user_watch, }; -asmlinkage long sys_inotify_init(void) +asmlinkage long sys_inotify_init1(int flags) { struct inotify_device *dev; struct inotify_handle *ih; @@ -574,7 +574,10 @@ asmlinkage long sys_inotify_init(void) struct file *filp; int fd, ret; - fd = get_unused_fd(); + if (flags & ~IN_CLOEXEC) + return -EINVAL; + + fd = get_unused_fd_flags(flags & O_CLOEXEC); if (fd < 0) return fd; @@ -638,6 +641,11 @@ out_put_fd: return ret; } +asmlinkage long sys_inotify_init(void) +{ + return sys_inotify_init1(0); +} + asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask) { struct inode *inode; diff --git a/include/asm-x86/unistd_32.h b/include/asm-x86/unistd_32.h index 748a05c77da4..b3daf503ab93 100644 --- a/include/asm-x86/unistd_32.h +++ b/include/asm-x86/unistd_32.h @@ -337,6 +337,7 @@ #define __NR_epoll_create2 329 #define __NR_dup3 330 #define __NR_pipe2 331 +#define __NR_inotify_init1 332 #ifdef __KERNEL__ diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index d2284b43ad58..c8cb88d70c6b 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -651,6 +651,8 @@ __SYSCALL(__NR_epoll_create2, sys_epoll_create2) __SYSCALL(__NR_dup3, sys_dup3) #define __NR_pipe2 293 __SYSCALL(__NR_pipe2, sys_pipe2) +#define __NR_inotify_init1 294 +__SYSCALL(__NR_inotify_init1, sys_inotify_init1) #ifndef __NO_STUBS diff --git a/include/linux/inotify.h b/include/linux/inotify.h index 742b917e7d1b..72ef82120512 100644 --- a/include/linux/inotify.h +++ b/include/linux/inotify.h @@ -7,6 +7,8 @@ #ifndef _LINUX_INOTIFY_H #define _LINUX_INOTIFY_H +/* For O_CLOEXEC */ +#include #include /* @@ -63,6 +65,9 @@ struct inotify_event { IN_MOVED_TO | IN_DELETE | IN_CREATE | IN_DELETE_SELF | \ IN_MOVE_SELF) +/* Flags for sys_inotify_init1. */ +#define IN_CLOEXEC O_CLOEXEC + #ifdef __KERNEL__ #include diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 034d3358549e..93a7e7f017a6 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -547,6 +547,7 @@ asmlinkage long sys_get_mempolicy(int __user *policy, unsigned long addr, unsigned long flags); asmlinkage long sys_inotify_init(void); +asmlinkage long sys_inotify_init1(int flags); asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask); asmlinkage long sys_inotify_rm_watch(int fd, u32 wd); diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 2a361ccdc7ca..bd66ac5406f3 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -96,6 +96,7 @@ cond_syscall(sys_keyctl); cond_syscall(compat_sys_keyctl); cond_syscall(compat_sys_socketcall); cond_syscall(sys_inotify_init); +cond_syscall(sys_inotify_init1); cond_syscall(sys_inotify_add_watch); cond_syscall(sys_inotify_rm_watch); cond_syscall(sys_migrate_pages); -- cgit v1.2.3 From 77d2720059618b9b6e827a8b73831eb6c6fad63c Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:35 -0700 Subject: flag parameters: NONBLOCK in socket and socketpair This patch introduces support for the SOCK_NONBLOCK flag in socket, socketpair, and paccept. To do this the internal function sock_attach_fd gets an additional parameter which it uses to set the appropriate flag for the file descriptor. Given that in modern, scalable programs almost all socket connections are non-blocking and the minimal additional cost for the new functionality I see no reason not to add this code. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #include #include #ifndef __NR_paccept # ifdef __x86_64__ # define __NR_paccept 288 # elif defined __i386__ # define SYS_PACCEPT 18 # define USE_SOCKETCALL 1 # else # error "need __NR_paccept" # endif #endif #ifdef USE_SOCKETCALL # define paccept(fd, addr, addrlen, mask, flags) \ ({ long args[6] = { \ (long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \ syscall (__NR_socketcall, SYS_PACCEPT, args); }) #else # define paccept(fd, addr, addrlen, mask, flags) \ syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags) #endif #define PORT 57392 #define SOCK_NONBLOCK O_NONBLOCK static pthread_barrier_t b; static void * tf (void *arg) { pthread_barrier_wait (&b); int s = socket (AF_INET, SOCK_STREAM, 0); struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); sin.sin_port = htons (PORT); connect (s, (const struct sockaddr *) &sin, sizeof (sin)); close (s); pthread_barrier_wait (&b); pthread_barrier_wait (&b); s = socket (AF_INET, SOCK_STREAM, 0); sin.sin_port = htons (PORT); connect (s, (const struct sockaddr *) &sin, sizeof (sin)); close (s); pthread_barrier_wait (&b); return NULL; } int main (void) { int fd; fd = socket (PF_INET, SOCK_STREAM, 0); if (fd == -1) { puts ("socket(0) failed"); return 1; } int fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if (fl & O_NONBLOCK) { puts ("socket(0) set non-blocking mode"); return 1; } close (fd); fd = socket (PF_INET, SOCK_STREAM|SOCK_NONBLOCK, 0); if (fd == -1) { puts ("socket(SOCK_NONBLOCK) failed"); return 1; } fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if ((fl & O_NONBLOCK) == 0) { puts ("socket(SOCK_NONBLOCK) does not set non-blocking mode"); return 1; } close (fd); int fds[2]; if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1) { puts ("socketpair(0) failed"); return 1; } for (int i = 0; i < 2; ++i) { fl = fcntl (fds[i], F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if (fl & O_NONBLOCK) { printf ("socketpair(0) set non-blocking mode for fds[%d]\n", i); return 1; } close (fds[i]); } if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_NONBLOCK, 0, fds) == -1) { puts ("socketpair(SOCK_NONBLOCK) failed"); return 1; } for (int i = 0; i < 2; ++i) { fl = fcntl (fds[i], F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if ((fl & O_NONBLOCK) == 0) { printf ("socketpair(SOCK_NONBLOCK) does not set non-blocking mode for fds[%d]\n", i); return 1; } close (fds[i]); } pthread_barrier_init (&b, NULL, 2); struct sockaddr_in sin; pthread_t th; if (pthread_create (&th, NULL, tf, NULL) != 0) { puts ("pthread_create failed"); return 1; } int s = socket (AF_INET, SOCK_STREAM, 0); int reuse = 1; setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse)); sin.sin_family = AF_INET; sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); sin.sin_port = htons (PORT); bind (s, (struct sockaddr *) &sin, sizeof (sin)); listen (s, SOMAXCONN); pthread_barrier_wait (&b); int s2 = paccept (s, NULL, 0, NULL, 0); if (s2 < 0) { puts ("paccept(0) failed"); return 1; } fl = fcntl (s2, F_GETFL); if (fl & O_NONBLOCK) { puts ("paccept(0) set non-blocking mode"); return 1; } close (s2); close (s); pthread_barrier_wait (&b); s = socket (AF_INET, SOCK_STREAM, 0); sin.sin_port = htons (PORT); setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse)); bind (s, (struct sockaddr *) &sin, sizeof (sin)); listen (s, SOMAXCONN); pthread_barrier_wait (&b); s2 = paccept (s, NULL, 0, NULL, SOCK_NONBLOCK); if (s2 < 0) { puts ("paccept(SOCK_NONBLOCK) failed"); return 1; } fl = fcntl (s2, F_GETFL); if ((fl & O_NONBLOCK) == 0) { puts ("paccept(SOCK_NONBLOCK) does not set non-blocking mode"); return 1; } close (s2); close (s); pthread_barrier_wait (&b); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/net.h | 2 +- net/socket.c | 20 ++++++++++---------- 2 files changed, 11 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/net.h b/include/linux/net.h index 39a23af059b4..2f999fbb188d 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -20,7 +20,7 @@ #include #include -#include /* For O_CLOEXEC */ +#include /* For O_CLOEXEC and O_NONBLOCK */ #include struct poll_table_struct; diff --git a/net/socket.c b/net/socket.c index d163adff95bf..31105f9048a8 100644 --- a/net/socket.c +++ b/net/socket.c @@ -369,7 +369,7 @@ static int sock_alloc_fd(struct file **filep, int flags) return fd; } -static int sock_attach_fd(struct socket *sock, struct file *file) +static int sock_attach_fd(struct socket *sock, struct file *file, int flags) { struct dentry *dentry; struct qstr name = { .name = "" }; @@ -391,7 +391,7 @@ static int sock_attach_fd(struct socket *sock, struct file *file) init_file(file, sock_mnt, dentry, FMODE_READ | FMODE_WRITE, &socket_file_ops); SOCK_INODE(sock)->i_fop = &socket_file_ops; - file->f_flags = O_RDWR; + file->f_flags = O_RDWR | (flags & O_NONBLOCK); file->f_pos = 0; file->private_data = sock; @@ -404,7 +404,7 @@ int sock_map_fd(struct socket *sock, int flags) int fd = sock_alloc_fd(&newfile, flags); if (likely(fd >= 0)) { - int err = sock_attach_fd(sock, newfile); + int err = sock_attach_fd(sock, newfile, flags); if (unlikely(err < 0)) { put_filp(newfile); @@ -1223,7 +1223,7 @@ asmlinkage long sys_socket(int family, int type, int protocol) int flags; flags = type & ~SOCK_TYPE_MASK; - if (flags & ~SOCK_CLOEXEC) + if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) return -EINVAL; type &= SOCK_TYPE_MASK; @@ -1234,7 +1234,7 @@ asmlinkage long sys_socket(int family, int type, int protocol) if (retval < 0) goto out; - retval = sock_map_fd(sock, flags & O_CLOEXEC); + retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); if (retval < 0) goto out_release; @@ -1260,7 +1260,7 @@ asmlinkage long sys_socketpair(int family, int type, int protocol, int flags; flags = type & ~SOCK_TYPE_MASK; - if (flags & ~SOCK_CLOEXEC) + if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) return -EINVAL; type &= SOCK_TYPE_MASK; @@ -1298,12 +1298,12 @@ asmlinkage long sys_socketpair(int family, int type, int protocol, goto out_release_both; } - err = sock_attach_fd(sock1, newfile1); + err = sock_attach_fd(sock1, newfile1, flags & O_NONBLOCK); if (unlikely(err < 0)) { goto out_fd2; } - err = sock_attach_fd(sock2, newfile2); + err = sock_attach_fd(sock2, newfile2, flags & O_NONBLOCK); if (unlikely(err < 0)) { fput(newfile1); goto out_fd1; @@ -1429,7 +1429,7 @@ long do_accept(int fd, struct sockaddr __user *upeer_sockaddr, int err, len, newfd, fput_needed; struct sockaddr_storage address; - if (flags & ~SOCK_CLOEXEC) + if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) return -EINVAL; if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) @@ -1459,7 +1459,7 @@ long do_accept(int fd, struct sockaddr __user *upeer_sockaddr, goto out_put; } - err = sock_attach_fd(newsock, newfile); + err = sock_attach_fd(newsock, newfile, flags & O_NONBLOCK); if (err < 0) goto out_fd_simple; -- cgit v1.2.3 From 5fb5e04926a54bc1c22bba7ca166840f4476196f Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:37 -0700 Subject: flag parameters: NONBLOCK in signalfd This patch adds support for the SFD_NONBLOCK flag to signalfd4. The additional changes needed are minimal. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #ifndef __NR_signalfd4 # ifdef __x86_64__ # define __NR_signalfd4 289 # elif defined __i386__ # define __NR_signalfd4 327 # else # error "need __NR_signalfd4" # endif #endif #define SFD_NONBLOCK O_NONBLOCK int main (void) { sigset_t ss; sigemptyset (&ss); sigaddset (&ss, SIGUSR1); int fd = syscall (__NR_signalfd4, -1, &ss, 8, 0); if (fd == -1) { puts ("signalfd4(0) failed"); return 1; } int fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if (fl & O_NONBLOCK) { puts ("signalfd4(0) set non-blocking mode"); return 1; } close (fd); fd = syscall (__NR_signalfd4, -1, &ss, 8, SFD_NONBLOCK); if (fd == -1) { puts ("signalfd4(SFD_NONBLOCK) failed"); return 1; } fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if ((fl & O_NONBLOCK) == 0) { puts ("signalfd4(SFD_NONBLOCK) does not set non-blocking mode"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/signalfd.c | 4 ++-- include/linux/signalfd.h | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/fs/signalfd.c b/fs/signalfd.c index c8609fa51a13..5441a4bca772 100644 --- a/fs/signalfd.c +++ b/fs/signalfd.c @@ -211,7 +211,7 @@ asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, sigset_t sigmask; struct signalfd_ctx *ctx; - if (flags & ~SFD_CLOEXEC) + if (flags & ~(SFD_CLOEXEC | SFD_NONBLOCK)) return -EINVAL; if (sizemask != sizeof(sigset_t) || @@ -232,7 +232,7 @@ asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, * anon_inode_getfd() will install the fd. */ ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx, - flags & O_CLOEXEC); + flags & (O_CLOEXEC | O_NONBLOCK)); if (ufd < 0) kfree(ctx); } else { diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h index 8b3f7b7420a1..bef0c46d4713 100644 --- a/include/linux/signalfd.h +++ b/include/linux/signalfd.h @@ -8,11 +8,12 @@ #ifndef _LINUX_SIGNALFD_H #define _LINUX_SIGNALFD_H -/* For O_CLOEXEC */ +/* For O_CLOEXEC and O_NONBLOCK */ #include /* Flags for signalfd4. */ #define SFD_CLOEXEC O_CLOEXEC +#define SFD_NONBLOCK O_NONBLOCK struct signalfd_siginfo { __u32 ssi_signo; -- cgit v1.2.3 From e7d476dfdf0bcfed478a207aecfdc84f81efecaf Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:38 -0700 Subject: flag parameters: NONBLOCK in eventfd This patch adds support for the EFD_NONBLOCK flag to eventfd2. The additional changes needed are minimal. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_eventfd2 # ifdef __x86_64__ # define __NR_eventfd2 290 # elif defined __i386__ # define __NR_eventfd2 328 # else # error "need __NR_eventfd2" # endif #endif #define EFD_NONBLOCK O_NONBLOCK int main (void) { int fd = syscall (__NR_eventfd2, 1, 0); if (fd == -1) { puts ("eventfd2(0) failed"); return 1; } int fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if (fl & O_NONBLOCK) { puts ("eventfd2(0) sets non-blocking mode"); return 1; } close (fd); fd = syscall (__NR_eventfd2, 1, EFD_NONBLOCK); if (fd == -1) { puts ("eventfd2(EFD_NONBLOCK) failed"); return 1; } fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if ((fl & O_NONBLOCK) == 0) { puts ("eventfd2(EFD_NONBLOCK) does not set non-blocking mode"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/eventfd.c | 4 ++-- include/linux/eventfd.h | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/fs/eventfd.c b/fs/eventfd.c index bd420e6478ad..3ed4466177a7 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -203,7 +203,7 @@ asmlinkage long sys_eventfd2(unsigned int count, int flags) int fd; struct eventfd_ctx *ctx; - if (flags & ~EFD_CLOEXEC) + if (flags & ~(EFD_CLOEXEC | EFD_NONBLOCK)) return -EINVAL; ctx = kmalloc(sizeof(*ctx), GFP_KERNEL); @@ -218,7 +218,7 @@ asmlinkage long sys_eventfd2(unsigned int count, int flags) * anon_inode_getfd() will install the fd. */ fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx, - flags & O_CLOEXEC); + flags & (O_CLOEXEC | O_NONBLOCK)); if (fd < 0) kfree(ctx); return fd; diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h index a6c0eaedb1b0..a667637b54e3 100644 --- a/include/linux/eventfd.h +++ b/include/linux/eventfd.h @@ -10,11 +10,12 @@ #ifdef CONFIG_EVENTFD -/* For O_CLOEXEC */ +/* For O_CLOEXEC and O_NONBLOCK */ #include /* Flags for eventfd2. */ #define EFD_CLOEXEC O_CLOEXEC +#define EFD_NONBLOCK O_NONBLOCK struct file *eventfd_fget(int fd); int eventfd_signal(struct file *file, int n); -- cgit v1.2.3 From 6b1ef0e60d42f2fdaec26baee8327eb156347b4f Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:39 -0700 Subject: flag parameters: NONBLOCK in timerfd_create This patch adds support for the TFD_NONBLOCK flag to timerfd_create. The additional changes needed are minimal. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #ifndef __NR_timerfd_create # ifdef __x86_64__ # define __NR_timerfd_create 283 # elif defined __i386__ # define __NR_timerfd_create 322 # else # error "need __NR_timerfd_create" # endif #endif #define TFD_NONBLOCK O_NONBLOCK int main (void) { int fd = syscall (__NR_timerfd_create, CLOCK_REALTIME, 0); if (fd == -1) { puts ("timerfd_create(0) failed"); return 1; } int fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if (fl & O_NONBLOCK) { puts ("timerfd_create(0) set non-blocking mode"); return 1; } close (fd); fd = syscall (__NR_timerfd_create, CLOCK_REALTIME, TFD_NONBLOCK); if (fd == -1) { puts ("timerfd_create(TFD_NONBLOCK) failed"); return 1; } fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if ((fl & O_NONBLOCK) == 0) { puts ("timerfd_create(TFD_NONBLOCK) set non-blocking mode"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/timerfd.c | 4 ++-- include/linux/timerfd.h | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/fs/timerfd.c b/fs/timerfd.c index c6ef5e33cb34..75d44efe346c 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -184,7 +184,7 @@ asmlinkage long sys_timerfd_create(int clockid, int flags) int ufd; struct timerfd_ctx *ctx; - if (flags & ~TFD_CLOEXEC) + if (flags & ~(TFD_CLOEXEC | TFD_NONBLOCK)) return -EINVAL; if (clockid != CLOCK_MONOTONIC && clockid != CLOCK_REALTIME) @@ -199,7 +199,7 @@ asmlinkage long sys_timerfd_create(int clockid, int flags) hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS); ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx, - flags & O_CLOEXEC); + flags & (O_CLOEXEC | O_NONBLOCK)); if (ufd < 0) kfree(ctx); diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h index 96ed97dff00f..86cb0501d3e2 100644 --- a/include/linux/timerfd.h +++ b/include/linux/timerfd.h @@ -8,7 +8,7 @@ #ifndef _LINUX_TIMERFD_H #define _LINUX_TIMERFD_H -/* For O_CLOEXEC */ +/* For O_CLOEXEC and O_NONBLOCK */ #include /* Flags for timerfd_settime. */ @@ -16,6 +16,7 @@ /* Flags for timerfd_create. */ #define TFD_CLOEXEC O_CLOEXEC +#define TFD_NONBLOCK O_NONBLOCK #endif /* _LINUX_TIMERFD_H */ -- cgit v1.2.3 From be61a86d7237dd80510615f38ae21d6e1e98660c Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:40 -0700 Subject: flag parameters: NONBLOCK in pipe This patch adds O_NONBLOCK support to pipe2. It is minimally more involved than the patches for eventfd et.al but still trivial. The interfaces of the create_write_pipe and create_read_pipe helper functions were changed and the one other caller as well. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_pipe2 # ifdef __x86_64__ # define __NR_pipe2 293 # elif defined __i386__ # define __NR_pipe2 331 # else # error "need __NR_pipe2" # endif #endif int main (void) { int fds[2]; if (syscall (__NR_pipe2, fds, 0) == -1) { puts ("pipe2(0) failed"); return 1; } for (int i = 0; i < 2; ++i) { int fl = fcntl (fds[i], F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if (fl & O_NONBLOCK) { printf ("pipe2(0) set non-blocking mode for fds[%d]\n", i); return 1; } close (fds[i]); } if (syscall (__NR_pipe2, fds, O_NONBLOCK) == -1) { puts ("pipe2(O_NONBLOCK) failed"); return 1; } for (int i = 0; i < 2; ++i) { int fl = fcntl (fds[i], F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if ((fl & O_NONBLOCK) == 0) { printf ("pipe2(O_NONBLOCK) does not set non-blocking mode for fds[%d]\n", i); return 1; } close (fds[i]); } puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/pipe.c | 14 +++++++------- include/linux/fs.h | 4 ++-- kernel/kmod.c | 4 ++-- 3 files changed, 11 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/fs/pipe.c b/fs/pipe.c index 68e82061070c..10c4e9aa5c49 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -950,7 +950,7 @@ fail_inode: return NULL; } -struct file *create_write_pipe(void) +struct file *create_write_pipe(int flags) { int err; struct inode *inode; @@ -983,7 +983,7 @@ struct file *create_write_pipe(void) goto err_dentry; f->f_mapping = inode->i_mapping; - f->f_flags = O_WRONLY; + f->f_flags = O_WRONLY | (flags & O_NONBLOCK); f->f_version = 0; return f; @@ -1007,7 +1007,7 @@ void free_write_pipe(struct file *f) put_filp(f); } -struct file *create_read_pipe(struct file *wrf) +struct file *create_read_pipe(struct file *wrf, int flags) { struct file *f = get_empty_filp(); if (!f) @@ -1019,7 +1019,7 @@ struct file *create_read_pipe(struct file *wrf) f->f_mapping = wrf->f_path.dentry->d_inode->i_mapping; f->f_pos = 0; - f->f_flags = O_RDONLY; + f->f_flags = O_RDONLY | (flags & O_NONBLOCK); f->f_op = &read_pipe_fops; f->f_mode = FMODE_READ; f->f_version = 0; @@ -1033,13 +1033,13 @@ int do_pipe_flags(int *fd, int flags) int error; int fdw, fdr; - if (flags & ~O_CLOEXEC) + if (flags & ~(O_CLOEXEC | O_NONBLOCK)) return -EINVAL; - fw = create_write_pipe(); + fw = create_write_pipe(flags); if (IS_ERR(fw)) return PTR_ERR(fw); - fr = create_read_pipe(fw); + fr = create_read_pipe(fw, flags); error = PTR_ERR(fr); if (IS_ERR(fr)) goto err_write_pipe; diff --git a/include/linux/fs.h b/include/linux/fs.h index 0e80cd717d32..4b86f806014c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1778,8 +1778,8 @@ static inline void allow_write_access(struct file *file) } extern int do_pipe(int *); extern int do_pipe_flags(int *, int); -extern struct file *create_read_pipe(struct file *f); -extern struct file *create_write_pipe(void); +extern struct file *create_read_pipe(struct file *f, int flags); +extern struct file *create_write_pipe(int flags); extern void free_write_pipe(struct file *); extern struct file *do_filp_open(int dfd, const char *pathname, diff --git a/kernel/kmod.c b/kernel/kmod.c index 90d7af1c1655..2989f67c4446 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -417,12 +417,12 @@ int call_usermodehelper_stdinpipe(struct subprocess_info *sub_info, { struct file *f; - f = create_write_pipe(); + f = create_write_pipe(0); if (IS_ERR(f)) return PTR_ERR(f); *filp = f; - f = create_read_pipe(f); + f = create_read_pipe(f, 0); if (IS_ERR(f)) { free_write_pipe(*filp); return PTR_ERR(f); -- cgit v1.2.3 From 510df2dd482496083e1c3b1a8c9b6afd5fa4c7d7 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:41 -0700 Subject: flag parameters: NONBLOCK in inotify_init This patch adds non-blocking support for inotify_init1. The additional changes needed are minimal. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_inotify_init1 # ifdef __x86_64__ # define __NR_inotify_init1 294 # elif defined __i386__ # define __NR_inotify_init1 332 # else # error "need __NR_inotify_init1" # endif #endif #define IN_NONBLOCK O_NONBLOCK int main (void) { int fd = syscall (__NR_inotify_init1, 0); if (fd == -1) { puts ("inotify_init1(0) failed"); return 1; } int fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if (fl & O_NONBLOCK) { puts ("inotify_init1(0) set non-blocking mode"); return 1; } close (fd); fd = syscall (__NR_inotify_init1, IN_NONBLOCK); if (fd == -1) { puts ("inotify_init1(IN_NONBLOCK) failed"); return 1; } fl = fcntl (fd, F_GETFL); if (fl == -1) { puts ("fcntl failed"); return 1; } if ((fl & O_NONBLOCK) == 0) { puts ("inotify_init1(IN_NONBLOCK) set non-blocking mode"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/inotify_user.c | 4 ++-- include/linux/inotify.h | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/fs/inotify_user.c b/fs/inotify_user.c index 851005998cd4..dc7e1f619748 100644 --- a/fs/inotify_user.c +++ b/fs/inotify_user.c @@ -574,7 +574,7 @@ asmlinkage long sys_inotify_init1(int flags) struct file *filp; int fd, ret; - if (flags & ~IN_CLOEXEC) + if (flags & ~(IN_CLOEXEC | IN_NONBLOCK)) return -EINVAL; fd = get_unused_fd_flags(flags & O_CLOEXEC); @@ -613,7 +613,7 @@ asmlinkage long sys_inotify_init1(int flags) filp->f_path.dentry = dget(inotify_mnt->mnt_root); filp->f_mapping = filp->f_path.dentry->d_inode->i_mapping; filp->f_mode = FMODE_READ; - filp->f_flags = O_RDONLY; + filp->f_flags = O_RDONLY | (flags & O_NONBLOCK); filp->private_data = dev; INIT_LIST_HEAD(&dev->events); diff --git a/include/linux/inotify.h b/include/linux/inotify.h index 72ef82120512..bd578578a8b9 100644 --- a/include/linux/inotify.h +++ b/include/linux/inotify.h @@ -7,7 +7,7 @@ #ifndef _LINUX_INOTIFY_H #define _LINUX_INOTIFY_H -/* For O_CLOEXEC */ +/* For O_CLOEXEC and O_NONBLOCK */ #include #include @@ -67,6 +67,7 @@ struct inotify_event { /* Flags for sys_inotify_init1. */ #define IN_CLOEXEC O_CLOEXEC +#define IN_NONBLOCK O_NONBLOCK #ifdef __KERNEL__ -- cgit v1.2.3 From 9fe5ad9c8cef9ad5873d8ee55d1cf00d9b607df0 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 23 Jul 2008 21:29:43 -0700 Subject: flag parameters add-on: remove epoll_create size param Remove the size parameter from the new epoll_create syscall and renames the syscall itself. The updated test program follows. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #include #ifndef __NR_epoll_create2 # ifdef __x86_64__ # define __NR_epoll_create2 291 # elif defined __i386__ # define __NR_epoll_create2 329 # else # error "need __NR_epoll_create2" # endif #endif #define EPOLL_CLOEXEC O_CLOEXEC int main (void) { int fd = syscall (__NR_epoll_create2, 0); if (fd == -1) { puts ("epoll_create2(0) failed"); return 1; } int coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { puts ("epoll_create2(0) set close-on-exec flag"); return 1; } close (fd); fd = syscall (__NR_epoll_create2, EPOLL_CLOEXEC); if (fd == -1) { puts ("epoll_create2(EPOLL_CLOEXEC) failed"); return 1; } coe = fcntl (fd, F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { puts ("epoll_create2(EPOLL_CLOEXEC) set close-on-exec flag"); return 1; } close (fd); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/ia32/ia32entry.S | 2 +- arch/x86/kernel/syscall_table_32.S | 2 +- fs/eventpoll.c | 18 ++++++++++-------- include/asm-x86/unistd_32.h | 2 +- include/asm-x86/unistd_64.h | 4 ++-- include/linux/eventpoll.h | 2 +- include/linux/syscalls.h | 2 +- 7 files changed, 17 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 4541073dd837..e4bd1793a5e4 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -828,7 +828,7 @@ ia32_sys_call_table: .quad compat_sys_timerfd_gettime .quad compat_sys_signalfd4 .quad sys_eventfd2 - .quad sys_epoll_create2 + .quad sys_epoll_create1 .quad sys_dup3 /* 330 */ .quad sys_pipe2 .quad sys_inotify_init1 diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index f59aba5ff0f0..d44395ff34c3 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -328,7 +328,7 @@ ENTRY(sys_call_table) .long sys_timerfd_gettime .long sys_signalfd4 .long sys_eventfd2 - .long sys_epoll_create2 + .long sys_epoll_create1 .long sys_dup3 /* 330 */ .long sys_pipe2 .long sys_inotify_init1 diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 2fdad4204044..0c87474f7917 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1046,7 +1046,7 @@ retry: * RB tree. With the current implementation, the "size" parameter is ignored * (besides sanity checks). */ -asmlinkage long sys_epoll_create2(int size, int flags) +asmlinkage long sys_epoll_create1(int flags) { int error, fd = -1; struct eventpoll *ep; @@ -1058,14 +1058,13 @@ asmlinkage long sys_epoll_create2(int size, int flags) return -EINVAL; DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d)\n", - current, size)); + current, flags)); /* - * Sanity check on the size parameter, and create the internal data - * structure ( "struct eventpoll" ). + * Create the internal data structure ( "struct eventpoll" ). */ - error = -EINVAL; - if (size <= 0 || (error = ep_alloc(&ep)) < 0) { + error = ep_alloc(&ep); + if (error < 0) { fd = error; goto error_return; } @@ -1081,14 +1080,17 @@ asmlinkage long sys_epoll_create2(int size, int flags) error_return: DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n", - current, size, fd)); + current, flags, fd)); return fd; } asmlinkage long sys_epoll_create(int size) { - return sys_epoll_create2(size, 0); + if (size < 0) + return -EINVAL; + + return sys_epoll_create1(0); } /* diff --git a/include/asm-x86/unistd_32.h b/include/asm-x86/unistd_32.h index b3daf503ab93..d7394673b772 100644 --- a/include/asm-x86/unistd_32.h +++ b/include/asm-x86/unistd_32.h @@ -334,7 +334,7 @@ #define __NR_timerfd_gettime 326 #define __NR_signalfd4 327 #define __NR_eventfd2 328 -#define __NR_epoll_create2 329 +#define __NR_epoll_create1 329 #define __NR_dup3 330 #define __NR_pipe2 331 #define __NR_inotify_init1 332 diff --git a/include/asm-x86/unistd_64.h b/include/asm-x86/unistd_64.h index c8cb88d70c6b..3a341d791792 100644 --- a/include/asm-x86/unistd_64.h +++ b/include/asm-x86/unistd_64.h @@ -645,8 +645,8 @@ __SYSCALL(__NR_paccept, sys_paccept) __SYSCALL(__NR_signalfd4, sys_signalfd4) #define __NR_eventfd2 290 __SYSCALL(__NR_eventfd2, sys_eventfd2) -#define __NR_epoll_create2 291 -__SYSCALL(__NR_epoll_create2, sys_epoll_create2) +#define __NR_epoll_create1 291 +__SYSCALL(__NR_epoll_create1, sys_epoll_create1) #define __NR_dup3 292 __SYSCALL(__NR_dup3, sys_dup3) #define __NR_pipe2 293 diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h index 1cfaa40059c8..f1e1d3c47125 100644 --- a/include/linux/eventpoll.h +++ b/include/linux/eventpoll.h @@ -18,7 +18,7 @@ #include #include -/* Flags for epoll_create2. */ +/* Flags for epoll_create1. */ #define EPOLL_CLOEXEC O_CLOEXEC /* Valid opcodes to issue to sys_epoll_ctl() */ diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 93a7e7f017a6..06f2bf76c030 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -431,7 +431,7 @@ asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp); asmlinkage long sys_epoll_create(int size); -asmlinkage long sys_epoll_create2(int size, int flags); +asmlinkage long sys_epoll_create1(int flags); asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event); asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, -- cgit v1.2.3 From 102eb97564c73ea73645b38599c5cbe6f54b030c Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Wed, 23 Jul 2008 21:29:55 -0700 Subject: spi: make spi_board_info.modalias a char array Currently, 'modalias' in the spi_device structure is a 'const char *'. The spi_new_device() function fills in the modalias value from a passed in spi_board_info data block. Since it is a pointer copy, the new spi_device remains dependent on the spi_board_info structure after the new spi_device is registered (no other fields in spi_device directly depend on the spi_board_info structure; all of the other data is copied). This causes a problem when dynamically propulating the list of attached SPI devices. For example, in arch/powerpc, the list of SPI devices can be populated from data in the device tree. With the current code, the device tree adapter must kmalloc() a new spi_board_info structure for each new SPI device it finds in the device tree, and there is no simple mechanism in place for keeping track of these allocations. This patch changes modalias from a 'const char *' to a fixed char array. By copying the modalias string instead of referencing it, the dependency on the spi_board_info structure is eliminated and an outside caller does not need to maintain a separate spi_board_info allocation for each device. If searched through the code to the best of my ability for any references to modalias which may be affected by this change and haven't found anything. It has been tested with the lite5200b platform in arch/powerpc. [dbrownell@users.sourceforge.net: cope with linux-next changes: KOBJ_NAME_LEN obliterated, etc] Signed-off-by: Grant Likely Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi.c | 4 +++- include/linux/spi/spi.h | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1771b2456bfa..ecca4a6a6f94 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -218,6 +218,8 @@ struct spi_device *spi_new_device(struct spi_master *master, if (!spi_master_get(master)) return NULL; + WARN_ON(strlen(chip->modalias) >= sizeof(proxy->modalias)); + proxy = kzalloc(sizeof *proxy, GFP_KERNEL); if (!proxy) { dev_err(dev, "can't alloc dev for cs%d\n", @@ -229,7 +231,7 @@ struct spi_device *spi_new_device(struct spi_master *master, proxy->max_speed_hz = chip->max_speed_hz; proxy->mode = chip->mode; proxy->irq = chip->irq; - proxy->modalias = chip->modalias; + strlcpy(proxy->modalias, chip->modalias, sizeof(proxy->modalias)); snprintf(proxy->dev.bus_id, sizeof proxy->dev.bus_id, "%s.%u", master->dev.bus_id, diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index b9a76c972084..a9cc29d46653 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -82,7 +82,7 @@ struct spi_device { int irq; void *controller_state; void *controller_data; - const char *modalias; + char modalias[32]; /* * likely need more hooks for more protocol options affecting how -- cgit v1.2.3 From 3a93a159c61e38a12f7ecbb3a25cf3f012abcf7a Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Wed, 23 Jul 2008 21:29:56 -0700 Subject: spi: au1550_spi: proper platform device Remove the Au1550 resource table and instead extract MMIO/IRQ/DMA resources from platform resource information like any well-behaved platform driver. Signed-off-by: Manuel Lauss Signed-off-by: Jan Nikitenko Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/au1550_spi.c | 138 ++++++++++++++++-------------- include/asm-mips/mach-au1x00/au1550_spi.h | 1 - 2 files changed, 74 insertions(+), 65 deletions(-) (limited to 'include') diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c index 072c4a595334..3860dd2fa5d9 100644 --- a/drivers/spi/au1550_spi.c +++ b/drivers/spi/au1550_spi.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -81,6 +82,7 @@ struct au1550_spi { struct spi_master *master; struct device *dev; struct au1550_spi_info *pdata; + struct resource *ioarea; }; @@ -96,6 +98,8 @@ static dbdev_tab_t au1550_spi_mem_dbdev = .dev_intpolarity = 0 }; +static int ddma_memid; /* id to above mem dma device */ + static void au1550_spi_bits_handlers_set(struct au1550_spi *hw, int bpw); @@ -732,6 +736,7 @@ static int __init au1550_spi_probe(struct platform_device *pdev) { struct au1550_spi *hw; struct spi_master *master; + struct resource *r; int err = 0; master = spi_alloc_master(&pdev->dev, sizeof(struct au1550_spi)); @@ -753,76 +758,64 @@ static int __init au1550_spi_probe(struct platform_device *pdev) goto err_no_pdata; } - platform_set_drvdata(pdev, hw); - - init_completion(&hw->master_done); - - hw->bitbang.master = hw->master; - hw->bitbang.setup_transfer = au1550_spi_setupxfer; - hw->bitbang.chipselect = au1550_spi_chipsel; - hw->bitbang.master->setup = au1550_spi_setup; - hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs; + r = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!r) { + dev_err(&pdev->dev, "no IRQ\n"); + err = -ENODEV; + goto err_no_iores; + } + hw->irq = r->start; + + hw->usedma = 0; + r = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (r) { + hw->dma_tx_id = r->start; + r = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (r) { + hw->dma_rx_id = r->start; + if (usedma && ddma_memid) { + if (pdev->dev.dma_mask == NULL) + dev_warn(&pdev->dev, "no dma mask\n"); + else + hw->usedma = 1; + } + } + } - switch (hw->pdata->bus_num) { - case 0: - hw->irq = AU1550_PSC0_INT; - hw->regs = (volatile psc_spi_t *)PSC0_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC0_RX; - hw->dma_tx_id = DSCR_CMD0_PSC0_TX; - break; - case 1: - hw->irq = AU1550_PSC1_INT; - hw->regs = (volatile psc_spi_t *)PSC1_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC1_RX; - hw->dma_tx_id = DSCR_CMD0_PSC1_TX; - break; - case 2: - hw->irq = AU1550_PSC2_INT; - hw->regs = (volatile psc_spi_t *)PSC2_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC2_RX; - hw->dma_tx_id = DSCR_CMD0_PSC2_TX; - break; - case 3: - hw->irq = AU1550_PSC3_INT; - hw->regs = (volatile psc_spi_t *)PSC3_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC3_RX; - hw->dma_tx_id = DSCR_CMD0_PSC3_TX; - break; - default: - dev_err(&pdev->dev, "Wrong bus_num of SPI\n"); - err = -ENOENT; - goto err_no_pdata; + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) { + dev_err(&pdev->dev, "no mmio resource\n"); + err = -ENODEV; + goto err_no_iores; } - if (request_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t), - pdev->name) == NULL) { + hw->ioarea = request_mem_region(r->start, sizeof(psc_spi_t), + pdev->name); + if (!hw->ioarea) { dev_err(&pdev->dev, "Cannot reserve iomem region\n"); err = -ENXIO; goto err_no_iores; } - - if (usedma) { - if (pdev->dev.dma_mask == NULL) - dev_warn(&pdev->dev, "no dma mask\n"); - else - hw->usedma = 1; + hw->regs = (psc_spi_t __iomem *)ioremap(r->start, sizeof(psc_spi_t)); + if (!hw->regs) { + dev_err(&pdev->dev, "cannot ioremap\n"); + err = -ENXIO; + goto err_ioremap; } - if (hw->usedma) { - /* - * create memory device with 8 bits dev_devwidth - * needed for proper byte ordering to spi fifo - */ - int memid = au1xxx_ddma_add_device(&au1550_spi_mem_dbdev); - if (!memid) { - dev_err(&pdev->dev, - "Cannot create dma 8 bit mem device\n"); - err = -ENXIO; - goto err_dma_add_dev; - } + platform_set_drvdata(pdev, hw); - hw->dma_tx_ch = au1xxx_dbdma_chan_alloc(memid, + init_completion(&hw->master_done); + + hw->bitbang.master = hw->master; + hw->bitbang.setup_transfer = au1550_spi_setupxfer; + hw->bitbang.chipselect = au1550_spi_chipsel; + hw->bitbang.master->setup = au1550_spi_setup; + hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs; + + if (hw->usedma) { + hw->dma_tx_ch = au1xxx_dbdma_chan_alloc(ddma_memid, hw->dma_tx_id, NULL, (void *)hw); if (hw->dma_tx_ch == 0) { dev_err(&pdev->dev, @@ -841,7 +834,7 @@ static int __init au1550_spi_probe(struct platform_device *pdev) hw->dma_rx_ch = au1xxx_dbdma_chan_alloc(hw->dma_rx_id, - memid, NULL, (void *)hw); + ddma_memid, NULL, (void *)hw); if (hw->dma_rx_ch == 0) { dev_err(&pdev->dev, "Cannot allocate rx dma channel\n"); @@ -874,7 +867,7 @@ static int __init au1550_spi_probe(struct platform_device *pdev) goto err_no_irq; } - master->bus_num = hw->pdata->bus_num; + master->bus_num = pdev->id; master->num_chipselect = hw->pdata->num_chipselect; /* @@ -924,8 +917,11 @@ err_no_txdma_descr: au1xxx_dbdma_chan_free(hw->dma_tx_ch); err_no_txdma: -err_dma_add_dev: - release_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t)); + iounmap((void __iomem *)hw->regs); + +err_ioremap: + release_resource(hw->ioarea); + kfree(hw->ioarea); err_no_iores: err_no_pdata: @@ -944,7 +940,9 @@ static int __exit au1550_spi_remove(struct platform_device *pdev) spi_bitbang_stop(&hw->bitbang); free_irq(hw->irq, hw); - release_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t)); + iounmap((void __iomem *)hw->regs); + release_resource(hw->ioarea); + kfree(hw->ioarea); if (hw->usedma) { au1550_spi_dma_rxtmp_free(hw); @@ -971,12 +969,24 @@ static struct platform_driver au1550_spi_drv = { static int __init au1550_spi_init(void) { + /* + * create memory device with 8 bits dev_devwidth + * needed for proper byte ordering to spi fifo + */ + if (usedma) { + ddma_memid = au1xxx_ddma_add_device(&au1550_spi_mem_dbdev); + if (!ddma_memid) + printk(KERN_ERR "au1550-spi: cannot add memory" + "dbdma device\n"); + } return platform_driver_probe(&au1550_spi_drv, au1550_spi_probe); } module_init(au1550_spi_init); static void __exit au1550_spi_exit(void) { + if (usedma && ddma_memid) + au1xxx_ddma_del_device(ddma_memid); platform_driver_unregister(&au1550_spi_drv); } module_exit(au1550_spi_exit); diff --git a/include/asm-mips/mach-au1x00/au1550_spi.h b/include/asm-mips/mach-au1x00/au1550_spi.h index 40e6c489833a..08e1958e9410 100644 --- a/include/asm-mips/mach-au1x00/au1550_spi.h +++ b/include/asm-mips/mach-au1x00/au1550_spi.h @@ -6,7 +6,6 @@ #define _AU1550_SPI_H_ struct au1550_spi_info { - s16 bus_num; /* defines which PSC and IRQ to use */ u32 mainclk_hz; /* main input clock frequency of PSC */ u16 num_chipselect; /* number of chipselects supported */ void (*activate_cs)(struct au1550_spi_info *spi, int cs, int polarity); -- cgit v1.2.3 From aa55ddf340c9fa3f303ee16bbf35887e42c50304 Mon Sep 17 00:00:00 2001 From: Ian Kent Date: Wed, 23 Jul 2008 21:30:29 -0700 Subject: autofs4: remove unused ioctls The ioctls AUTOFS_IOC_TOGGLEREGHOST and AUTOFS_IOC_ASKREGHOST were added several years ago but what they were intended for has never been implemented (as far as I'm aware noone uses them) so remove them. Signed-off-by: Ian Kent Reviewed-by: Jeff Moyer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/autofs4/root.c | 68 +----------------------------------------------- fs/compat_ioctl.c | 2 -- include/linux/auto_fs4.h | 2 -- 3 files changed, 1 insertion(+), 71 deletions(-) (limited to 'include') diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index ae22bde0bbd7..bcfb2dc0a61b 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -25,7 +25,6 @@ static int autofs4_dir_rmdir(struct inode *,struct dentry *); static int autofs4_dir_mkdir(struct inode *,struct dentry *,int); static int autofs4_root_ioctl(struct inode *, struct file *,unsigned int,unsigned long); static int autofs4_dir_open(struct inode *inode, struct file *file); -static int autofs4_root_readdir(struct file * filp, void * dirent, filldir_t filldir); static struct dentry *autofs4_lookup(struct inode *,struct dentry *, struct nameidata *); static void *autofs4_follow_link(struct dentry *, struct nameidata *); @@ -36,7 +35,7 @@ const struct file_operations autofs4_root_operations = { .open = dcache_dir_open, .release = dcache_dir_close, .read = generic_read_dir, - .readdir = autofs4_root_readdir, + .readdir = dcache_readdir, .ioctl = autofs4_root_ioctl, }; @@ -71,28 +70,6 @@ const struct inode_operations autofs4_dir_inode_operations = { .rmdir = autofs4_dir_rmdir, }; -static int autofs4_root_readdir(struct file *file, void *dirent, - filldir_t filldir) -{ - struct autofs_sb_info *sbi = autofs4_sbi(file->f_path.dentry->d_sb); - int oz_mode = autofs4_oz_mode(sbi); - - DPRINTK("called, filp->f_pos = %lld", file->f_pos); - - /* - * Don't set reghost flag if: - * 1) f_pos is larger than zero -- we've already been here. - * 2) we haven't even enabled reghosting in the 1st place. - * 3) this is the daemon doing a readdir - */ - if (oz_mode && file->f_pos == 0 && sbi->reghost_enabled) - sbi->needs_reghost = 1; - - DPRINTK("needs_reghost = %d", sbi->needs_reghost); - - return dcache_readdir(file, dirent, filldir); -} - static int autofs4_dir_open(struct inode *inode, struct file *file) { struct dentry *dentry = file->f_path.dentry; @@ -858,44 +835,6 @@ static inline int autofs4_get_protosubver(struct autofs_sb_info *sbi, int __user return put_user(sbi->sub_version, p); } -/* - * Tells the daemon whether we need to reghost or not. Also, clears - * the reghost_needed flag. - */ -static inline int autofs4_ask_reghost(struct autofs_sb_info *sbi, int __user *p) -{ - int status; - - DPRINTK("returning %d", sbi->needs_reghost); - - status = put_user(sbi->needs_reghost, p); - if (status) - return status; - - sbi->needs_reghost = 0; - return 0; -} - -/* - * Enable / Disable reghosting ioctl() operation - */ -static inline int autofs4_toggle_reghost(struct autofs_sb_info *sbi, int __user *p) -{ - int status; - int val; - - status = get_user(val, p); - - DPRINTK("reghost = %d", val); - - if (status) - return status; - - /* turn on/off reghosting, with the val */ - sbi->reghost_enabled = val; - return 0; -} - /* * Tells the daemon whether it can umount the autofs mount. */ @@ -960,11 +899,6 @@ static int autofs4_root_ioctl(struct inode *inode, struct file *filp, case AUTOFS_IOC_SETTIMEOUT: return autofs4_get_set_timeout(sbi, p); - case AUTOFS_IOC_TOGGLEREGHOST: - return autofs4_toggle_reghost(sbi, p); - case AUTOFS_IOC_ASKREGHOST: - return autofs4_ask_reghost(sbi, p); - case AUTOFS_IOC_ASKUMOUNT: return autofs4_ask_umount(filp->f_path.mnt, p); diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 7b3a03c7c6a9..18e2c548161d 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -2297,8 +2297,6 @@ COMPATIBLE_IOCTL(AUTOFS_IOC_PROTOVER) COMPATIBLE_IOCTL(AUTOFS_IOC_EXPIRE) COMPATIBLE_IOCTL(AUTOFS_IOC_EXPIRE_MULTI) COMPATIBLE_IOCTL(AUTOFS_IOC_PROTOSUBVER) -COMPATIBLE_IOCTL(AUTOFS_IOC_ASKREGHOST) -COMPATIBLE_IOCTL(AUTOFS_IOC_TOGGLEREGHOST) COMPATIBLE_IOCTL(AUTOFS_IOC_ASKUMOUNT) /* Raw devices */ COMPATIBLE_IOCTL(RAW_SETBIND) diff --git a/include/linux/auto_fs4.h b/include/linux/auto_fs4.h index 31a29541b504..b785c6f8644d 100644 --- a/include/linux/auto_fs4.h +++ b/include/linux/auto_fs4.h @@ -98,8 +98,6 @@ union autofs_v5_packet_union { #define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI #define AUTOFS_IOC_EXPIRE_DIRECT AUTOFS_IOC_EXPIRE_MULTI #define AUTOFS_IOC_PROTOSUBVER _IOR(0x93,0x67,int) -#define AUTOFS_IOC_ASKREGHOST _IOR(0x93,0x68,int) -#define AUTOFS_IOC_TOGGLEREGHOST _IOR(0x93,0x69,int) #define AUTOFS_IOC_ASKUMOUNT _IOR(0x93,0x70,int) -- cgit v1.2.3 From 5ad31a575157147b43fa84ef1e21471661653878 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 23 Jul 2008 21:30:33 -0700 Subject: rtc: remove BKL for ioctl() Remove implicit use of BKL in ioctl() from the RTC framework. Instead, the rtc->ops_lock is used. That's the same lock that already protects the RTC operations when they're issued through the exported rtc_*() calls in drivers/rtc/interface.c ... making this a bugfix, not just a cleanup, since both ioctl calls and set_alarm() need to update IRQ enable flags and that implies a common lock (which RTC drivers as a rule do not provide on their own). A new comment at the declaration of "struct rtc_class_ops" summarizes current locking rules. It's not clear to me that the exceptions listed there should exist ... if not, those are pre-existing problems which can be fixed in a patch that doesn't relate to BKL removal. Signed-off-by: David Brownell Cc: Alan Cox Cc: Jonathan Corbet Acked-by: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-dev.c | 58 +++++++++++++++++++++++++++++++++------------------ include/linux/rtc.h | 17 +++++++++++++++ 2 files changed, 55 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c index 0114a78b7cbb..0a870b7e5c32 100644 --- a/drivers/rtc/rtc-dev.c +++ b/drivers/rtc/rtc-dev.c @@ -209,7 +209,7 @@ static unsigned int rtc_dev_poll(struct file *file, poll_table *wait) return (data != 0) ? (POLLIN | POLLRDNORM) : 0; } -static int rtc_dev_ioctl(struct inode *inode, struct file *file, +static long rtc_dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int err = 0; @@ -219,6 +219,10 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, struct rtc_wkalrm alarm; void __user *uarg = (void __user *) arg; + err = mutex_lock_interruptible(&rtc->ops_lock); + if (err) + return -EBUSY; + /* check that the calling task has appropriate permissions * for certain ioctls. doing this check here is useful * to avoid duplicate code in each driver. @@ -227,26 +231,31 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, case RTC_EPOCH_SET: case RTC_SET_TIME: if (!capable(CAP_SYS_TIME)) - return -EACCES; + err = -EACCES; break; case RTC_IRQP_SET: if (arg > rtc->max_user_freq && !capable(CAP_SYS_RESOURCE)) - return -EACCES; + err = -EACCES; break; case RTC_PIE_ON: if (rtc->irq_freq > rtc->max_user_freq && !capable(CAP_SYS_RESOURCE)) - return -EACCES; + err = -EACCES; break; } + if (err) + goto done; + /* try the driver's ioctl interface */ if (ops->ioctl) { err = ops->ioctl(rtc->dev.parent, cmd, arg); - if (err != -ENOIOCTLCMD) + if (err != -ENOIOCTLCMD) { + mutex_unlock(&rtc->ops_lock); return err; + } } /* if the driver does not provide the ioctl interface @@ -265,15 +274,19 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, switch (cmd) { case RTC_ALM_READ: + mutex_unlock(&rtc->ops_lock); + err = rtc_read_alarm(rtc, &alarm); if (err < 0) return err; if (copy_to_user(uarg, &alarm.time, sizeof(tm))) - return -EFAULT; - break; + err = -EFAULT; + return err; case RTC_ALM_SET: + mutex_unlock(&rtc->ops_lock); + if (copy_from_user(&alarm.time, uarg, sizeof(tm))) return -EFAULT; @@ -321,24 +334,26 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, } } - err = rtc_set_alarm(rtc, &alarm); - break; + return rtc_set_alarm(rtc, &alarm); case RTC_RD_TIME: + mutex_unlock(&rtc->ops_lock); + err = rtc_read_time(rtc, &tm); if (err < 0) return err; if (copy_to_user(uarg, &tm, sizeof(tm))) - return -EFAULT; - break; + err = -EFAULT; + return err; case RTC_SET_TIME: + mutex_unlock(&rtc->ops_lock); + if (copy_from_user(&tm, uarg, sizeof(tm))) return -EFAULT; - err = rtc_set_time(rtc, &tm); - break; + return rtc_set_time(rtc, &tm); case RTC_PIE_ON: err = rtc_irq_set_state(rtc, NULL, 1); @@ -376,34 +391,37 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, break; #endif case RTC_WKALM_SET: + mutex_unlock(&rtc->ops_lock); if (copy_from_user(&alarm, uarg, sizeof(alarm))) return -EFAULT; - err = rtc_set_alarm(rtc, &alarm); - break; + return rtc_set_alarm(rtc, &alarm); case RTC_WKALM_RD: + mutex_unlock(&rtc->ops_lock); err = rtc_read_alarm(rtc, &alarm); if (err < 0) return err; if (copy_to_user(uarg, &alarm, sizeof(alarm))) - return -EFAULT; - break; + err = -EFAULT; + return err; #ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL case RTC_UIE_OFF: clear_uie(rtc); - return 0; + break; case RTC_UIE_ON: - return set_uie(rtc); + err = set_uie(rtc); #endif default: err = -ENOTTY; break; } +done: + mutex_unlock(&rtc->ops_lock); return err; } @@ -432,7 +450,7 @@ static const struct file_operations rtc_dev_fops = { .llseek = no_llseek, .read = rtc_dev_read, .poll = rtc_dev_poll, - .ioctl = rtc_dev_ioctl, + .unlocked_ioctl = rtc_dev_ioctl, .open = rtc_dev_open, .release = rtc_dev_release, .fasync = rtc_dev_fasync, diff --git a/include/linux/rtc.h b/include/linux/rtc.h index f2d0d1527721..b01fe004cb5e 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -115,6 +115,23 @@ extern void rtc_time_to_tm(unsigned long time, struct rtc_time *tm); extern struct class *rtc_class; +/* + * For these RTC methods the device parameter is the physical device + * on whatever bus holds the hardware (I2C, Platform, SPI, etc), which + * was passed to rtc_device_register(). Its driver_data normally holds + * device state, including the rtc_device pointer for the RTC. + * + * Most of these methods are called with rtc_device.ops_lock held, + * through the rtc_*(struct rtc_device *, ...) calls. + * + * The (current) exceptions are mostly filesystem hooks: + * - the proc() hook for procfs + * - non-ioctl() chardev hooks: open(), release(), read_callback() + * - periodic irq calls: irq_set_state(), irq_set_freq() + * + * REVISIT those periodic irq calls *do* have ops_lock when they're + * issued through ioctl() ... + */ struct rtc_class_ops { int (*open)(struct device *); void (*release)(struct device *); -- cgit v1.2.3 From 53e84b672c1a8190af2b376c35c7a39cf1214f59 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 23 Jul 2008 21:30:36 -0700 Subject: rtc: ds1305/ds1306 driver Support the Dallas/Maxim DS1305 and DS1306 RTC chips. These use SPI, and support alarms, NVRAM, and a trickle charger for use when their backup power supply is a supercap or rechargeable cell. This basic driver doesn't yet support suspend/resume or wakealarms. Signed-off-by: David Brownell Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/Kconfig | 10 + drivers/rtc/Makefile | 1 + drivers/rtc/rtc-ds1305.c | 847 +++++++++++++++++++++++++++++++++++++++++++++ include/linux/spi/ds1305.h | 35 ++ 4 files changed, 893 insertions(+) create mode 100644 drivers/rtc/rtc-ds1305.c create mode 100644 include/linux/spi/ds1305.h (limited to 'include') diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index beffb834c440..90ab73825401 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -282,6 +282,16 @@ config RTC_DRV_M41T94 This driver can also be built as a module. If so, the module will be called rtc-m41t94. +config RTC_DRV_DS1305 + tristate "Dallas/Maxim DS1305/DS1306" + help + Select this driver to get support for the Dallas/Maxim DS1305 + and DS1306 real time clock chips. These support a trickle + charger, alarms, and NVRAM in addition to the clock. + + This driver can also be built as a module. If so, the module + will be called rtc-ds1305. + config RTC_DRV_MAX6902 tristate "Maxim MAX6902" help diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index b0e1af54f800..18622ef84cab 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_RTC_DRV_BFIN) += rtc-bfin.o obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o obj-$(CONFIG_RTC_DRV_DS1216) += rtc-ds1216.o obj-$(CONFIG_RTC_DRV_DS1302) += rtc-ds1302.o +obj-$(CONFIG_RTC_DRV_DS1305) += rtc-ds1305.o obj-$(CONFIG_RTC_DRV_DS1307) += rtc-ds1307.o obj-$(CONFIG_RTC_DRV_DS1374) += rtc-ds1374.o obj-$(CONFIG_RTC_DRV_DS1511) += rtc-ds1511.o diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c new file mode 100644 index 000000000000..b91d02a3ace9 --- /dev/null +++ b/drivers/rtc/rtc-ds1305.c @@ -0,0 +1,847 @@ +/* + * rtc-ds1305.c -- driver for DS1305 and DS1306 SPI RTC chips + * + * Copyright (C) 2008 David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#include +#include +#include +#include +#include + +#include +#include + + +/* + * Registers ... mask DS1305_WRITE into register address to write, + * otherwise you're reading it. All non-bitmask values are BCD. + */ +#define DS1305_WRITE 0x80 + + +/* RTC date/time ... the main special cases are that we: + * - Need fancy "hours" encoding in 12hour mode + * - Don't rely on the "day-of-week" field (or tm_wday) + * - Are a 21st-century clock (2000 <= year < 2100) + */ +#define DS1305_RTC_LEN 7 /* bytes for RTC regs */ + +#define DS1305_SEC 0x00 /* register addresses */ +#define DS1305_MIN 0x01 +#define DS1305_HOUR 0x02 +# define DS1305_HR_12 0x40 /* set == 12 hr mode */ +# define DS1305_HR_PM 0x20 /* set == PM (12hr mode) */ +#define DS1305_WDAY 0x03 +#define DS1305_MDAY 0x04 +#define DS1305_MON 0x05 +#define DS1305_YEAR 0x06 + + +/* The two alarms have only sec/min/hour/wday fields (ALM_LEN). + * DS1305_ALM_DISABLE disables a match field (some combos are bad). + * + * NOTE that since we don't use WDAY, we limit ourselves to alarms + * only one day into the future (vs potentially up to a week). + * + * NOTE ALSO that while we could generate once-a-second IRQs (UIE), we + * don't currently support them. We'd either need to do it only when + * no alarm is pending (not the standard model), or to use the second + * alarm (implying that this is a DS1305 not DS1306, *and* that either + * it's wired up a second IRQ we know, or that INTCN is set) + */ +#define DS1305_ALM_LEN 4 /* bytes for ALM regs */ +#define DS1305_ALM_DISABLE 0x80 + +#define DS1305_ALM0(r) (0x07 + (r)) /* register addresses */ +#define DS1305_ALM1(r) (0x0b + (r)) + + +/* three control registers */ +#define DS1305_CONTROL_LEN 3 /* bytes of control regs */ + +#define DS1305_CONTROL 0x0f /* register addresses */ +# define DS1305_nEOSC 0x80 /* low enables oscillator */ +# define DS1305_WP 0x40 /* write protect */ +# define DS1305_INTCN 0x04 /* clear == only int0 used */ +# define DS1306_1HZ 0x04 /* enable 1Hz output */ +# define DS1305_AEI1 0x02 /* enable ALM1 IRQ */ +# define DS1305_AEI0 0x01 /* enable ALM0 IRQ */ +#define DS1305_STATUS 0x10 +/* status has just AEIx bits, mirrored as IRQFx */ +#define DS1305_TRICKLE 0x11 +/* trickle bits are defined in */ + +/* a bunch of NVRAM */ +#define DS1305_NVRAM_LEN 96 /* bytes of NVRAM */ + +#define DS1305_NVRAM 0x20 /* register addresses */ + + +struct ds1305 { + struct spi_device *spi; + struct rtc_device *rtc; + + struct work_struct work; + + unsigned long flags; +#define FLAG_EXITING 0 + + bool hr12; + u8 ctrl[DS1305_CONTROL_LEN]; +}; + + +/*----------------------------------------------------------------------*/ + +/* + * Utilities ... tolerate 12-hour AM/PM notation in case of non-Linux + * software (like a bootloader) which may require it. + */ + +static unsigned bcd2hour(u8 bcd) +{ + if (bcd & DS1305_HR_12) { + unsigned hour = 0; + + bcd &= ~DS1305_HR_12; + if (bcd & DS1305_HR_PM) { + hour = 12; + bcd &= ~DS1305_HR_PM; + } + hour += BCD2BIN(bcd); + return hour - 1; + } + return BCD2BIN(bcd); +} + +static u8 hour2bcd(bool hr12, int hour) +{ + if (hr12) { + hour++; + if (hour <= 12) + return DS1305_HR_12 | BIN2BCD(hour); + hour -= 12; + return DS1305_HR_12 | DS1305_HR_PM | BIN2BCD(hour); + } + return BIN2BCD(hour); +} + +/*----------------------------------------------------------------------*/ + +/* + * Interface to RTC framework + */ + +#ifdef CONFIG_RTC_INTF_DEV + +/* + * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) + */ +static int ds1305_ioctl(struct device *dev, unsigned cmd, unsigned long arg) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + u8 buf[2]; + int status = -ENOIOCTLCMD; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + + switch (cmd) { + case RTC_AIE_OFF: + status = 0; + if (!(buf[1] & DS1305_AEI0)) + goto done; + buf[1] &= ~DS1305_AEI0; + break; + + case RTC_AIE_ON: + status = 0; + if (ds1305->ctrl[0] & DS1305_AEI0) + goto done; + buf[1] |= DS1305_AEI0; + break; + } + if (status == 0) { + status = spi_write_then_read(ds1305->spi, buf, sizeof buf, + NULL, 0); + if (status >= 0) + ds1305->ctrl[0] = buf[1]; + } + +done: + return status; +} + +#else +#define ds1305_ioctl NULL +#endif + +/* + * Get/set of date and time is pretty normal. + */ + +static int ds1305_get_time(struct device *dev, struct rtc_time *time) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + u8 addr = DS1305_SEC; + u8 buf[DS1305_RTC_LEN]; + int status; + + /* Use write-then-read to get all the date/time registers + * since dma from stack is nonportable + */ + status = spi_write_then_read(ds1305->spi, &addr, sizeof addr, + buf, sizeof buf); + if (status < 0) + return status; + + dev_vdbg(dev, "%s: %02x %02x %02x, %02x %02x %02x %02x\n", + "read", buf[0], buf[1], buf[2], buf[3], + buf[4], buf[5], buf[6]); + + /* Decode the registers */ + time->tm_sec = BCD2BIN(buf[DS1305_SEC]); + time->tm_min = BCD2BIN(buf[DS1305_MIN]); + time->tm_hour = bcd2hour(buf[DS1305_HOUR]); + time->tm_wday = buf[DS1305_WDAY] - 1; + time->tm_mday = BCD2BIN(buf[DS1305_MDAY]); + time->tm_mon = BCD2BIN(buf[DS1305_MON]) - 1; + time->tm_year = BCD2BIN(buf[DS1305_YEAR]) + 100; + + dev_vdbg(dev, "%s secs=%d, mins=%d, " + "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n", + "read", time->tm_sec, time->tm_min, + time->tm_hour, time->tm_mday, + time->tm_mon, time->tm_year, time->tm_wday); + + /* Time may not be set */ + return rtc_valid_tm(time); +} + +static int ds1305_set_time(struct device *dev, struct rtc_time *time) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + u8 buf[1 + DS1305_RTC_LEN]; + u8 *bp = buf; + + dev_vdbg(dev, "%s secs=%d, mins=%d, " + "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n", + "write", time->tm_sec, time->tm_min, + time->tm_hour, time->tm_mday, + time->tm_mon, time->tm_year, time->tm_wday); + + /* Write registers starting at the first time/date address. */ + *bp++ = DS1305_WRITE | DS1305_SEC; + + *bp++ = BIN2BCD(time->tm_sec); + *bp++ = BIN2BCD(time->tm_min); + *bp++ = hour2bcd(ds1305->hr12, time->tm_hour); + *bp++ = (time->tm_wday < 7) ? (time->tm_wday + 1) : 1; + *bp++ = BIN2BCD(time->tm_mday); + *bp++ = BIN2BCD(time->tm_mon + 1); + *bp++ = BIN2BCD(time->tm_year - 100); + + dev_dbg(dev, "%s: %02x %02x %02x, %02x %02x %02x %02x\n", + "write", buf[1], buf[2], buf[3], + buf[4], buf[5], buf[6], buf[7]); + + /* use write-then-read since dma from stack is nonportable */ + return spi_write_then_read(ds1305->spi, buf, sizeof buf, + NULL, 0); +} + +/* + * Get/set of alarm is a bit funky: + * + * - First there's the inherent raciness of getting the (partitioned) + * status of an alarm that could trigger while we're reading parts + * of that status. + * + * - Second there's its limited range (we could increase it a bit by + * relying on WDAY), which means it will easily roll over. + * + * - Third there's the choice of two alarms and alarm signals. + * Here we use ALM0 and expect that nINT0 (open drain) is used; + * that's the only real option for DS1306 runtime alarms, and is + * natural on DS1305. + * + * - Fourth, there's also ALM1, and a second interrupt signal: + * + On DS1305 ALM1 uses nINT1 (when INTCN=1) else nINT0; + * + On DS1306 ALM1 only uses INT1 (an active high pulse) + * and it won't work when VCC1 is active. + * + * So to be most general, we should probably set both alarms to the + * same value, letting ALM1 be the wakeup event source on DS1306 + * and handling several wiring options on DS1305. + * + * - Fifth, we support the polled mode (as well as possible; why not?) + * even when no interrupt line is wired to an IRQ. + */ + +/* + * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) + */ +static int ds1305_get_alarm(struct device *dev, struct rtc_wkalrm *alm) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + struct spi_device *spi = ds1305->spi; + u8 addr; + int status; + u8 buf[DS1305_ALM_LEN]; + + /* Refresh control register cache BEFORE reading ALM0 registers, + * since reading alarm registers acks any pending IRQ. That + * makes returning "pending" status a bit of a lie, but that bit + * of EFI status is at best fragile anyway (given IRQ handlers). + */ + addr = DS1305_CONTROL; + status = spi_write_then_read(spi, &addr, sizeof addr, + ds1305->ctrl, sizeof ds1305->ctrl); + if (status < 0) + return status; + + alm->enabled = !!(ds1305->ctrl[0] & DS1305_AEI0); + alm->pending = !!(ds1305->ctrl[1] & DS1305_AEI0); + + /* get and check ALM0 registers */ + addr = DS1305_ALM0(DS1305_SEC); + status = spi_write_then_read(spi, &addr, sizeof addr, + buf, sizeof buf); + if (status < 0) + return status; + + dev_vdbg(dev, "%s: %02x %02x %02x %02x\n", + "alm0 read", buf[DS1305_SEC], buf[DS1305_MIN], + buf[DS1305_HOUR], buf[DS1305_WDAY]); + + if ((DS1305_ALM_DISABLE & buf[DS1305_SEC]) + || (DS1305_ALM_DISABLE & buf[DS1305_MIN]) + || (DS1305_ALM_DISABLE & buf[DS1305_HOUR])) + return -EIO; + + /* Stuff these values into alm->time and let RTC framework code + * fill in the rest ... and also handle rollover to tomorrow when + * that's needed. + */ + alm->time.tm_sec = BCD2BIN(buf[DS1305_SEC]); + alm->time.tm_min = BCD2BIN(buf[DS1305_MIN]); + alm->time.tm_hour = bcd2hour(buf[DS1305_HOUR]); + alm->time.tm_mday = -1; + alm->time.tm_mon = -1; + alm->time.tm_year = -1; + /* next three fields are unused by Linux */ + alm->time.tm_wday = -1; + alm->time.tm_mday = -1; + alm->time.tm_isdst = -1; + + return 0; +} + +/* + * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) + */ +static int ds1305_set_alarm(struct device *dev, struct rtc_wkalrm *alm) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + struct spi_device *spi = ds1305->spi; + unsigned long now, later; + struct rtc_time tm; + int status; + u8 buf[1 + DS1305_ALM_LEN]; + + /* convert desired alarm to time_t */ + status = rtc_tm_to_time(&alm->time, &later); + if (status < 0) + return status; + + /* Read current time as time_t */ + status = ds1305_get_time(dev, &tm); + if (status < 0) + return status; + status = rtc_tm_to_time(&tm, &now); + if (status < 0) + return status; + + /* make sure alarm fires within the next 24 hours */ + if (later <= now) + return -EINVAL; + if ((later - now) > 24 * 60 * 60) + return -EDOM; + + /* disable alarm if needed */ + if (ds1305->ctrl[0] & DS1305_AEI0) { + ds1305->ctrl[0] &= ~DS1305_AEI0; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + status = spi_write_then_read(ds1305->spi, buf, 2, NULL, 0); + if (status < 0) + return status; + } + + /* write alarm */ + buf[0] = DS1305_WRITE | DS1305_ALM0(DS1305_SEC); + buf[1 + DS1305_SEC] = BIN2BCD(alm->time.tm_sec); + buf[1 + DS1305_MIN] = BIN2BCD(alm->time.tm_min); + buf[1 + DS1305_HOUR] = hour2bcd(ds1305->hr12, alm->time.tm_hour); + buf[1 + DS1305_WDAY] = DS1305_ALM_DISABLE; + + dev_dbg(dev, "%s: %02x %02x %02x %02x\n", + "alm0 write", buf[1 + DS1305_SEC], buf[1 + DS1305_MIN], + buf[1 + DS1305_HOUR], buf[1 + DS1305_WDAY]); + + status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0); + if (status < 0) + return status; + + /* enable alarm if requested */ + if (alm->enabled) { + ds1305->ctrl[0] |= DS1305_AEI0; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + status = spi_write_then_read(ds1305->spi, buf, 2, NULL, 0); + } + + return status; +} + +#ifdef CONFIG_PROC_FS + +static int ds1305_proc(struct device *dev, struct seq_file *seq) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + char *diodes = "no"; + char *resistors = ""; + + /* ctrl[2] is treated as read-only; no locking needed */ + if ((ds1305->ctrl[2] & 0xf0) == DS1305_TRICKLE_MAGIC) { + switch (ds1305->ctrl[2] & 0x0c) { + case DS1305_TRICKLE_DS2: + diodes = "2 diodes, "; + break; + case DS1305_TRICKLE_DS1: + diodes = "1 diode, "; + break; + default: + goto done; + } + switch (ds1305->ctrl[2] & 0x03) { + case DS1305_TRICKLE_2K: + resistors = "2k Ohm"; + break; + case DS1305_TRICKLE_4K: + resistors = "4k Ohm"; + break; + case DS1305_TRICKLE_8K: + resistors = "8k Ohm"; + break; + default: + diodes = "no"; + break; + } + } + +done: + return seq_printf(seq, + "trickle_charge\t: %s%s\n", + diodes, resistors); +} + +#else +#define ds1305_proc NULL +#endif + +static const struct rtc_class_ops ds1305_ops = { + .ioctl = ds1305_ioctl, + .read_time = ds1305_get_time, + .set_time = ds1305_set_time, + .read_alarm = ds1305_get_alarm, + .set_alarm = ds1305_set_alarm, + .proc = ds1305_proc, +}; + +static void ds1305_work(struct work_struct *work) +{ + struct ds1305 *ds1305 = container_of(work, struct ds1305, work); + struct mutex *lock = &ds1305->rtc->ops_lock; + struct spi_device *spi = ds1305->spi; + u8 buf[3]; + int status; + + /* lock to protect ds1305->ctrl */ + mutex_lock(lock); + + /* Disable the IRQ, and clear its status ... for now, we "know" + * that if more than one alarm is active, they're in sync. + * Note that reading ALM data registers also clears IRQ status. + */ + ds1305->ctrl[0] &= ~(DS1305_AEI1 | DS1305_AEI0); + ds1305->ctrl[1] = 0; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + buf[2] = 0; + + status = spi_write_then_read(spi, buf, sizeof buf, + NULL, 0); + if (status < 0) + dev_dbg(&spi->dev, "clear irq --> %d\n", status); + + mutex_unlock(lock); + + if (!test_bit(FLAG_EXITING, &ds1305->flags)) + enable_irq(spi->irq); + + /* rtc_update_irq() requires an IRQ-disabled context */ + local_irq_disable(); + rtc_update_irq(ds1305->rtc, 1, RTC_AF | RTC_IRQF); + local_irq_enable(); +} + +/* + * This "real" IRQ handler hands off to a workqueue mostly to allow + * mutex locking for ds1305->ctrl ... unlike I2C, we could issue async + * I/O requests in IRQ context (to clear the IRQ status). + */ +static irqreturn_t ds1305_irq(int irq, void *p) +{ + struct ds1305 *ds1305 = p; + + disable_irq(irq); + schedule_work(&ds1305->work); + return IRQ_HANDLED; +} + +/*----------------------------------------------------------------------*/ + +/* + * Interface for NVRAM + */ + +static void msg_init(struct spi_message *m, struct spi_transfer *x, + u8 *addr, size_t count, char *tx, char *rx) +{ + spi_message_init(m); + memset(x, 0, 2 * sizeof(*x)); + + x->tx_buf = addr; + x->len = 1; + spi_message_add_tail(x, m); + + x++; + + x->tx_buf = tx; + x->rx_buf = rx; + x->len = count; + spi_message_add_tail(x, m); +} + +static ssize_t +ds1305_nvram_read(struct kobject *kobj, struct bin_attribute *attr, + char *buf, loff_t off, size_t count) +{ + struct spi_device *spi; + u8 addr; + struct spi_message m; + struct spi_transfer x[2]; + int status; + + spi = container_of(kobj, struct spi_device, dev.kobj); + + if (unlikely(off >= DS1305_NVRAM_LEN)) + return 0; + if (count >= DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN; + if ((off + count) > DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN - off; + if (unlikely(!count)) + return count; + + addr = DS1305_NVRAM + off; + msg_init(&m, x, &addr, count, NULL, buf); + + status = spi_sync(spi, &m); + if (status < 0) + dev_err(&spi->dev, "nvram %s error %d\n", "read", status); + return (status < 0) ? status : count; +} + +static ssize_t +ds1305_nvram_write(struct kobject *kobj, struct bin_attribute *attr, + char *buf, loff_t off, size_t count) +{ + struct spi_device *spi; + u8 addr; + struct spi_message m; + struct spi_transfer x[2]; + int status; + + spi = container_of(kobj, struct spi_device, dev.kobj); + + if (unlikely(off >= DS1305_NVRAM_LEN)) + return -EFBIG; + if (count >= DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN; + if ((off + count) > DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN - off; + if (unlikely(!count)) + return count; + + addr = (DS1305_WRITE | DS1305_NVRAM) + off; + msg_init(&m, x, &addr, count, buf, NULL); + + status = spi_sync(spi, &m); + if (status < 0) + dev_err(&spi->dev, "nvram %s error %d\n", "write", status); + return (status < 0) ? status : count; +} + +static struct bin_attribute nvram = { + .attr.name = "nvram", + .attr.mode = S_IRUGO | S_IWUSR, + .attr.owner = THIS_MODULE, + .read = ds1305_nvram_read, + .write = ds1305_nvram_write, + .size = DS1305_NVRAM_LEN, +}; + +/*----------------------------------------------------------------------*/ + +/* + * Interface to SPI stack + */ + +static int __devinit ds1305_probe(struct spi_device *spi) +{ + struct ds1305 *ds1305; + struct rtc_device *rtc; + int status; + u8 addr, value; + struct ds1305_platform_data *pdata = spi->dev.platform_data; + bool write_ctrl = false; + + /* Sanity check board setup data. This may be hooked up + * in 3wire mode, but we don't care. Note that unless + * there's an inverter in place, this needs SPI_CS_HIGH! + */ + if ((spi->bits_per_word && spi->bits_per_word != 8) + || (spi->max_speed_hz > 2000000) + || !(spi->mode & SPI_CPHA)) + return -EINVAL; + + /* set up driver data */ + ds1305 = kzalloc(sizeof *ds1305, GFP_KERNEL); + if (!ds1305) + return -ENOMEM; + ds1305->spi = spi; + spi_set_drvdata(spi, ds1305); + + /* read and cache control registers */ + addr = DS1305_CONTROL; + status = spi_write_then_read(spi, &addr, sizeof addr, + ds1305->ctrl, sizeof ds1305->ctrl); + if (status < 0) { + dev_dbg(&spi->dev, "can't %s, %d\n", + "read", status); + goto fail0; + } + + dev_dbg(&spi->dev, "ctrl %s: %02x %02x %02x\n", + "read", ds1305->ctrl[0], + ds1305->ctrl[1], ds1305->ctrl[2]); + + /* Sanity check register values ... partially compensating for the + * fact that SPI has no device handshake. A pullup on MISO would + * make these tests fail; but not all systems will have one. If + * some register is neither 0x00 nor 0xff, a chip is likely there. + */ + if ((ds1305->ctrl[0] & 0x38) != 0 || (ds1305->ctrl[1] & 0xfc) != 0) { + dev_dbg(&spi->dev, "RTC chip is not present\n"); + status = -ENODEV; + goto fail0; + } + if (ds1305->ctrl[2] == 0) + dev_dbg(&spi->dev, "chip may not be present\n"); + + /* enable writes if needed ... if we were paranoid it would + * make sense to enable them only when absolutely necessary. + */ + if (ds1305->ctrl[0] & DS1305_WP) { + u8 buf[2]; + + ds1305->ctrl[0] &= ~DS1305_WP; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0); + + dev_dbg(&spi->dev, "clear WP --> %d\n", status); + if (status < 0) + goto fail0; + } + + /* on DS1305, maybe start oscillator; like most low power + * oscillators, it may take a second to stabilize + */ + if (ds1305->ctrl[0] & DS1305_nEOSC) { + ds1305->ctrl[0] &= ~DS1305_nEOSC; + write_ctrl = true; + dev_warn(&spi->dev, "SET TIME!\n"); + } + + /* ack any pending IRQs */ + if (ds1305->ctrl[1]) { + ds1305->ctrl[1] = 0; + write_ctrl = true; + } + + /* this may need one-time (re)init */ + if (pdata) { + /* maybe enable trickle charge */ + if (((ds1305->ctrl[2] & 0xf0) != DS1305_TRICKLE_MAGIC)) { + ds1305->ctrl[2] = DS1305_TRICKLE_MAGIC + | pdata->trickle; + write_ctrl = true; + } + + /* on DS1306, configure 1 Hz signal */ + if (pdata->is_ds1306) { + if (pdata->en_1hz) { + if (!(ds1305->ctrl[0] & DS1306_1HZ)) { + ds1305->ctrl[0] |= DS1306_1HZ; + write_ctrl = true; + } + } else { + if (ds1305->ctrl[0] & DS1306_1HZ) { + ds1305->ctrl[0] &= ~DS1306_1HZ; + write_ctrl = true; + } + } + } + } + + if (write_ctrl) { + u8 buf[4]; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + buf[2] = ds1305->ctrl[1]; + buf[3] = ds1305->ctrl[2]; + status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0); + if (status < 0) { + dev_dbg(&spi->dev, "can't %s, %d\n", + "write", status); + goto fail0; + } + + dev_dbg(&spi->dev, "ctrl %s: %02x %02x %02x\n", + "write", ds1305->ctrl[0], + ds1305->ctrl[1], ds1305->ctrl[2]); + } + + /* see if non-Linux software set up AM/PM mode */ + addr = DS1305_HOUR; + status = spi_write_then_read(spi, &addr, sizeof addr, + &value, sizeof value); + if (status < 0) { + dev_dbg(&spi->dev, "read HOUR --> %d\n", status); + goto fail0; + } + + ds1305->hr12 = (DS1305_HR_12 & value) != 0; + if (ds1305->hr12) + dev_dbg(&spi->dev, "AM/PM\n"); + + /* register RTC ... from here on, ds1305->ctrl needs locking */ + rtc = rtc_device_register("ds1305", &spi->dev, + &ds1305_ops, THIS_MODULE); + if (IS_ERR(rtc)) { + status = PTR_ERR(rtc); + dev_dbg(&spi->dev, "register rtc --> %d\n", status); + goto fail0; + } + ds1305->rtc = rtc; + + /* Maybe set up alarm IRQ; be ready to handle it triggering right + * away. NOTE that we don't share this. The signal is active low, + * and we can't ack it before a SPI message delay. We temporarily + * disable the IRQ until it's acked, which lets us work with more + * IRQ trigger modes (not all IRQ controllers can do falling edge). + */ + if (spi->irq) { + INIT_WORK(&ds1305->work, ds1305_work); + status = request_irq(spi->irq, ds1305_irq, + 0, dev_name(&rtc->dev), ds1305); + if (status < 0) { + dev_dbg(&spi->dev, "request_irq %d --> %d\n", + spi->irq, status); + goto fail1; + } + } + + /* export NVRAM */ + status = sysfs_create_bin_file(&spi->dev.kobj, &nvram); + if (status < 0) { + dev_dbg(&spi->dev, "register nvram --> %d\n", status); + goto fail2; + } + + return 0; + +fail2: + free_irq(spi->irq, ds1305); +fail1: + rtc_device_unregister(rtc); +fail0: + kfree(ds1305); + return status; +} + +static int __devexit ds1305_remove(struct spi_device *spi) +{ + struct ds1305 *ds1305 = spi_get_drvdata(spi); + + sysfs_remove_bin_file(&spi->dev.kobj, &nvram); + + /* carefully shut down irq and workqueue, if present */ + if (spi->irq) { + set_bit(FLAG_EXITING, &ds1305->flags); + free_irq(spi->irq, ds1305); + flush_scheduled_work(); + } + + rtc_device_unregister(ds1305->rtc); + spi_set_drvdata(spi, NULL); + kfree(ds1305); + return 0; +} + +static struct spi_driver ds1305_driver = { + .driver.name = "rtc-ds1305", + .driver.owner = THIS_MODULE, + .probe = ds1305_probe, + .remove = __devexit_p(ds1305_remove), + /* REVISIT add suspend/resume */ +}; + +static int __init ds1305_init(void) +{ + return spi_register_driver(&ds1305_driver); +} +module_init(ds1305_init); + +static void __exit ds1305_exit(void) +{ + spi_unregister_driver(&ds1305_driver); +} +module_exit(ds1305_exit); + +MODULE_DESCRIPTION("RTC driver for DS1305 and DS1306 chips"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/spi/ds1305.h b/include/linux/spi/ds1305.h new file mode 100644 index 000000000000..287ec830eab7 --- /dev/null +++ b/include/linux/spi/ds1305.h @@ -0,0 +1,35 @@ +#ifndef __LINUX_SPI_DS1305_H +#define __LINUX_SPI_DS1305_H + +/* + * One-time configuration for ds1305 and ds1306 RTC chips. + * + * Put a pointer to this in spi_board_info.platform_data if you want to + * be sure that Linux (re)initializes this as needed ... after losing + * backup power, and potentially on the first boot. + */ +struct ds1305_platform_data { + + /* Trickle charge configuration: it's OK to leave out the MAGIC + * bitmask; mask in either DS1 or DS2, and then one of 2K/4k/8K. + */ +#define DS1305_TRICKLE_MAGIC 0xa0 +#define DS1305_TRICKLE_DS2 0x08 /* two diodes */ +#define DS1305_TRICKLE_DS1 0x04 /* one diode */ +#define DS1305_TRICKLE_2K 0x01 /* 2 KOhm resistance */ +#define DS1305_TRICKLE_4K 0x02 /* 4 KOhm resistance */ +#define DS1305_TRICKLE_8K 0x03 /* 8 KOhm resistance */ + u8 trickle; + + /* set only on ds1306 parts */ + bool is_ds1306; + + /* ds1306 only: enable 1 Hz output */ + bool en_1hz; + + /* REVISIT: the driver currently expects nINT0 to be wired + * as the alarm IRQ. ALM1 may also need to be set up ... + */ +}; + +#endif /* __LINUX_SPI_DS1305_H */ -- cgit v1.2.3 From d3de851a445123f24ad8ece18662014b5e8a8b4e Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 23 Jul 2008 21:30:37 -0700 Subject: rtc: BCD codeshrink This updates to define the key routines as constant functions, which the macros will then call. Newer code can now call bcd2bin() instead of SCREAMING BCD2BIN() TO THE FOUR WINDS. This lets each driver shrink their codespace by using N function calls to a single (global) copy of those routines, instead of N inlined copies of these functions per driver. These routines aren't used in speed-critical code. Almost all callers are in the RTC framework. Typical per-driver savings is near 300 bytes. Signed-off-by: David Brownell Acked-by: Adrian Bunk Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bcd.h | 9 +++++++-- lib/Makefile | 2 +- lib/bcd.c | 14 ++++++++++++++ 3 files changed, 22 insertions(+), 3 deletions(-) create mode 100644 lib/bcd.c (limited to 'include') diff --git a/include/linux/bcd.h b/include/linux/bcd.h index c545308125b0..7ac518e3c152 100644 --- a/include/linux/bcd.h +++ b/include/linux/bcd.h @@ -10,8 +10,13 @@ #ifndef _BCD_H #define _BCD_H -#define BCD2BIN(val) (((val) & 0x0f) + ((val)>>4)*10) -#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10) +#include + +unsigned bcd2bin(unsigned char val) __attribute_const__; +unsigned char bin2bcd(unsigned val) __attribute_const__; + +#define BCD2BIN(val) bcd2bin(val) +#define BIN2BCD(val) bin2bcd(val) /* backwards compat */ #define BCD_TO_BIN(val) ((val)=BCD2BIN(val)) diff --git a/lib/Makefile b/lib/Makefile index 818c4d455518..9085ad6fa53d 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -18,7 +18,7 @@ lib-$(CONFIG_SMP) += cpumask.o lib-y += kobject.o kref.o klist.o -obj-y += div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \ +obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \ bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o ifeq ($(CONFIG_DEBUG_KOBJECT),y) diff --git a/lib/bcd.c b/lib/bcd.c new file mode 100644 index 000000000000..d74257fd0fe7 --- /dev/null +++ b/lib/bcd.c @@ -0,0 +1,14 @@ +#include +#include + +unsigned bcd2bin(unsigned char val) +{ + return (val & 0x0f) + (val >> 4) * 10; +} +EXPORT_SYMBOL(bcd2bin); + +unsigned char bin2bcd(unsigned val) +{ + return ((val / 10) << 4) + val % 10; +} +EXPORT_SYMBOL(bin2bcd); -- cgit v1.2.3 From 6eed8e1ec8532a6cd10c8b27236bde023c52c56a Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Wed, 23 Jul 2008 21:30:53 -0700 Subject: tridentfb: move global flat panel variable into structure This patch moves flat panel indicator into tridentfb_par structure and removes related global variables and macros. Signed-off-by: Krzysztof Helt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/tridentfb.c | 44 +++++++++++++++++++++++--------------------- include/video/trident.h | 6 ------ 2 files changed, 23 insertions(+), 27 deletions(-) (limited to 'include') diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index dfe52b424c97..604b10a590da 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -30,6 +30,7 @@ struct tridentfb_par { void __iomem *io_virt; /* iospace virtual memory address */ u32 pseudo_pal[16]; int chip_id; + int flatpanel; }; static unsigned char eng_oper; /* engine operation... */ @@ -43,24 +44,22 @@ static struct fb_fix_screeninfo tridentfb_fix = { .accel = FB_ACCEL_NONE, }; -static int displaytype; - /* defaults which are normally overriden by user values */ /* video mode */ static char *mode_option __devinitdata = "640x480"; -static int bpp = 8; +static int bpp __devinitdata = 8; -static int noaccel; +static int noaccel __devinitdata; static int center; static int stretch; -static int fp; -static int crt; +static int fp __devinitdata; +static int crt __devinitdata; -static int memsize; -static int memdiff; +static int memsize __devinitdata; +static int memdiff __devinitdata; static int nativex; module_param(mode_option, charp, 0); @@ -75,7 +74,9 @@ module_param(memsize, int, 0); module_param(memdiff, int, 0); module_param(nativex, int, 0); module_param(fp, int, 0); +MODULE_PARM_DESC(fp, "Define if flatpanel is connected"); module_param(crt, int, 0); +MODULE_PARM_DESC(crt, "Define if CRT is connected"); static int is3Dchip(int id) { @@ -728,15 +729,15 @@ static void set_number_of_lines(struct tridentfb_par *par, int lines) /* * If we see that FP is active we assume we have one. - * Otherwise we have a CRT display.User can override. + * Otherwise we have a CRT display. User can override. */ -static unsigned int __devinit get_displaytype(struct tridentfb_par *par) +static int __devinit is_flatpanel(struct tridentfb_par *par) { if (fp) - return DISPLAY_FP; + return 1; if (crt || !iscyber(par->chip_id)) - return DISPLAY_CRT; - return (read3CE(par, FPConfig) & 0x10) ? DISPLAY_FP : DISPLAY_CRT; + return 0; + return (read3CE(par, FPConfig) & 0x10) ? 1 : 0; } /* Try detecting the video memory size */ @@ -824,6 +825,7 @@ static unsigned int __devinit get_memsize(struct tridentfb_par *par) static int tridentfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { + struct tridentfb_par *par = info->par; int bpp = var->bits_per_pixel; debug("enter\n"); @@ -831,7 +833,7 @@ static int tridentfb_check_var(struct fb_var_screeninfo *var, if (bpp == 24) bpp = var->bits_per_pixel = 32; /* check whether resolution fits on panel and in memory */ - if (flatpanel && nativex && var->xres > nativex) + if (par->flatpanel && nativex && var->xres > nativex) return -EINVAL; if (var->xres * var->yres_virtual * bpp / 8 > info->fix.smem_len) return -EINVAL; @@ -928,7 +930,7 @@ static int tridentfb_set_par(struct fb_info *info) crtc_unlock(par); write3CE(par, CyberControl, 8); - if (flatpanel && var->xres < nativex) { + if (par->flatpanel && var->xres < nativex) { /* * on flat panels with native size larger * than requested resolution decide whether @@ -1097,7 +1099,7 @@ static int tridentfb_set_par(struct fb_info *info) t_outb(par, tmp, 0x3C6); t_inb(par, 0x3C8); - if (flatpanel) + if (par->flatpanel) set_number_of_lines(par, info->var.yres); set_lwidth(par, info->var.xres * bpp / (4 * 16)); info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; @@ -1153,7 +1155,7 @@ static int tridentfb_blank(int blank_mode, struct fb_info *info) struct tridentfb_par *par = info->par; debug("enter\n"); - if (flatpanel) + if (par->flatpanel) return 0; t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */ PMCont = t_inb(par, 0x83C6) & 0xFC; @@ -1322,9 +1324,9 @@ static int __devinit trident_pci_probe(struct pci_dev *dev, } output("%s board found\n", pci_name(dev)); - displaytype = get_displaytype(default_par); + default_par->flatpanel = is_flatpanel(default_par); - if (flatpanel) + if (default_par->flatpanel) nativex = get_nativex(default_par); info->fix = tridentfb_fix; @@ -1441,9 +1443,9 @@ static int __init tridentfb_setup(char *options) if (!strncmp(opt, "noaccel", 7)) noaccel = 1; else if (!strncmp(opt, "fp", 2)) - displaytype = DISPLAY_FP; + fp = 1; else if (!strncmp(opt, "crt", 3)) - displaytype = DISPLAY_CRT; + fp = 0; else if (!strncmp(opt, "bpp=", 4)) bpp = simple_strtoul(opt + 4, NULL, 0); else if (!strncmp(opt, "center", 6)) diff --git a/include/video/trident.h b/include/video/trident.h index 200be2551681..d3dd737a1ba8 100644 --- a/include/video/trident.h +++ b/include/video/trident.h @@ -63,12 +63,6 @@ #define LCD_CENTER 1 #define LCD_BIOS 2 -/* display types */ -#define DISPLAY_CRT 0 -#define DISPLAY_FP 1 - -#define flatpanel (displaytype == DISPLAY_FP) - /* General Registers */ #define SPR 0x1F /* Software Programming Register (videoram) */ -- cgit v1.2.3 From e0759a5fbba12e0f2c9149d85bea1ec7df0178fd Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Wed, 23 Jul 2008 21:30:53 -0700 Subject: tridentfb: convert is_blade and is_xp macros into functions This patch converts the is_blade() and is_xp() macros into local functions. Signed-off-by: Krzysztof Helt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/tridentfb.c | 19 +++++++++++++++++++ include/video/trident.h | 19 ------------------- 2 files changed, 19 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index 604b10a590da..e87f77093ec1 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -78,6 +78,25 @@ MODULE_PARM_DESC(fp, "Define if flatpanel is connected"); module_param(crt, int, 0); MODULE_PARM_DESC(crt, "Define if CRT is connected"); +static int is_blade(int id) +{ + return (id == BLADE3D) || + (id == CYBERBLADEE4) || + (id == CYBERBLADEi7) || + (id == CYBERBLADEi7D) || + (id == CYBERBLADEi1) || + (id == CYBERBLADEi1D) || + (id == CYBERBLADEAi1) || + (id == CYBERBLADEAi1D); +} + +static int is_xp(int id) +{ + return (id == CYBERBLADEXPAi1) || + (id == CYBERBLADEXPm8) || + (id == CYBERBLADEXPm16); +} + static int is3Dchip(int id) { return ((id == BLADE3D) || (id == CYBERBLADEE4) || diff --git a/include/video/trident.h b/include/video/trident.h index d3dd737a1ba8..9c3670b28906 100644 --- a/include/video/trident.h +++ b/include/video/trident.h @@ -39,25 +39,6 @@ #define CYBERBLADEXPm8 0x9910 #define CYBERBLADEXPm16 0x9930 -/* acceleration families */ -#define IMAGE 0 -#define BLADE 1 -#define XP 2 - -#define is_image(id) -#define is_xp(id) ((id == CYBERBLADEXPAi1) ||\ - (id == CYBERBLADEXPm8) ||\ - (id == CYBERBLADEXPm16)) - -#define is_blade(id) ((id == BLADE3D) ||\ - (id == CYBERBLADEE4) ||\ - (id == CYBERBLADEi7) ||\ - (id == CYBERBLADEi7D) ||\ - (id == CYBERBLADEi1) ||\ - (id == CYBERBLADEi1D) ||\ - (id == CYBERBLADEAi1) ||\ - (id == CYBERBLADEAi1D)) - /* these defines are for 'lcd' variable */ #define LCD_STRETCH 0 #define LCD_CENTER 1 -- cgit v1.2.3 From 10172ed6dc4d40ff42bf5ce2dd2f65f401a93696 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Wed, 23 Jul 2008 21:30:54 -0700 Subject: tridentfb: make use of functions and constants from the vga.h Make use of functions and constants from the vga.h header to compact the code and make it more readable. Signed-off-by: Krzysztof Helt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/tridentfb.c | 144 ++++++++++++++++++++-------------------------- include/video/trident.h | 26 --------- 2 files changed, 61 insertions(+), 109 deletions(-) (limited to 'include') diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index d6796448c5ac..381e5853df6f 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -22,6 +22,7 @@ #include #include +#include