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| author | Paul Mundt <lethal@linux-sh.org> | 2010-03-30 07:38:01 +0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-04-21 07:23:25 +0400 |
| commit | 3366e3585fbf0d40ce6f2382b544851cf4df1654 (patch) | |
| tree | 2d0e01291d103d28bdb67afffb816fa1d7023fbb /arch/sh/kernel/smp.c | |
| parent | 4a6feab0ee5240c4bd5378d9f8a46b85718c68a7 (diff) | |
| download | linux-3366e3585fbf0d40ce6f2382b544851cf4df1654.tar.xz | |
sh: Move platform smp ops in to their own structure.
This cribs the MIPS plat_smp_ops approach for wrapping up the platform
ops. This will allow for mixing and matching different ops on the same
platform in the future.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/smp.c')
| -rw-r--r-- | arch/sh/kernel/smp.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c index 002cc612deef..2f348fda0159 100644 --- a/arch/sh/kernel/smp.c +++ b/arch/sh/kernel/smp.c @@ -3,7 +3,7 @@ * * SMP support for the SuperH processors. * - * Copyright (C) 2002 - 2008 Paul Mundt + * Copyright (C) 2002 - 2010 Paul Mundt * Copyright (C) 2006 - 2007 Akio Idehara * * This file is subject to the terms and conditions of the GNU General Public @@ -31,6 +31,16 @@ int __cpu_number_map[NR_CPUS]; /* Map physical to logical */ int __cpu_logical_map[NR_CPUS]; /* Map logical to physical */ +struct plat_smp_ops *mp_ops = NULL; + +void __cpuinit register_smp_ops(struct plat_smp_ops *ops) +{ + if (mp_ops) + printk(KERN_WARNING "Overriding previously set SMP ops\n"); + + mp_ops = ops; +} + static inline void __init smp_store_cpu_info(unsigned int cpu) { struct sh_cpuinfo *c = cpu_data + cpu; @@ -46,7 +56,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) init_new_context(current, &init_mm); current_thread_info()->cpu = cpu; - plat_prepare_cpus(max_cpus); + mp_ops->prepare_cpus(max_cpus); #ifndef CONFIG_HOTPLUG_CPU init_cpu_present(&cpu_possible_map); @@ -127,7 +137,7 @@ int __cpuinit __cpu_up(unsigned int cpu) (unsigned long)&stack_start + sizeof(stack_start)); wmb(); - plat_start_cpu(cpu, (unsigned long)_stext); + mp_ops->start_cpu(cpu, (unsigned long)_stext); timeout = jiffies + HZ; while (time_before(jiffies, timeout)) { @@ -159,7 +169,7 @@ void __init smp_cpus_done(unsigned int max_cpus) void smp_send_reschedule(int cpu) { - plat_send_ipi(cpu, SMP_MSG_RESCHEDULE); + mp_ops->send_ipi(cpu, SMP_MSG_RESCHEDULE); } void smp_send_stop(void) @@ -172,12 +182,12 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) int cpu; for_each_cpu(cpu, mask) - plat_send_ipi(cpu, SMP_MSG_FUNCTION); + mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION); } void arch_send_call_function_single_ipi(int cpu) { - plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE); + mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE); } void smp_timer_broadcast(const struct cpumask *mask) @@ -185,7 +195,7 @@ void smp_timer_broadcast(const struct cpumask *mask) int cpu; for_each_cpu(cpu, mask) - plat_send_ipi(cpu, SMP_MSG_TIMER); + mp_ops->send_ipi(cpu, SMP_MSG_TIMER); } static void ipi_timer(void) |